Fix a minor bug that prevented compilation.
[dragonfly.git] / sys / bus / cam / scsi / scsi_cd.c
CommitLineData
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1/*
2 * Copyright (c) 1997 Justin T. Gibbs.
62ade751 3 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2003, 2003 Kenneth D. Merry.
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4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions, and the following disclaimer,
11 * without modification, immediately at the beginning of the file.
12 * 2. The name of the author may not be used to endorse or promote products
13 * derived from this software without specific prior written permission.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
19 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 *
62ade751 27 * $FreeBSD: src/sys/cam/scsi/scsi_cd.c,v 1.31.2.16 2003/10/21 22:26:11 thomas Exp $
10f3fee5 28 * $DragonFly: src/sys/bus/cam/scsi/scsi_cd.c,v 1.22 2006/04/30 17:22:15 dillon Exp $
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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 "opt_cd.h"
51
52#include <sys/param.h>
fabb8ceb 53#include <sys/bootmaj.h>
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54#include <sys/systm.h>
55#include <sys/kernel.h>
56#include <sys/buf.h>
57#include <sys/conf.h>
58#include <sys/disk.h>
59#include <sys/malloc.h>
60#include <sys/cdio.h>
61#include <sys/cdrio.h>
62#include <sys/dvdio.h>
63#include <sys/devicestat.h>
64#include <sys/sysctl.h>
62ade751 65#include <sys/taskqueue.h>
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66#include <sys/proc.h>
67#include <sys/buf2.h>
4e01b467 68#include <sys/thread2.h>
984263bc 69
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70#include "../cam.h"
71#include "../cam_ccb.h"
72#include "../cam_extend.h"
73#include "../cam_periph.h"
74#include "../cam_xpt_periph.h"
75#include "../cam_queue.h"
984263bc 76
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77#include "scsi_message.h"
78#include "scsi_da.h"
79#include "scsi_cd.h"
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80
81#define LEADOUT 0xaa /* leadout toc entry */
82
83struct cd_params {
84 u_int32_t blksize;
85 u_long disksize;
86};
87
88typedef enum {
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89 CD_Q_NONE = 0x00,
90 CD_Q_NO_TOUCH = 0x01,
91 CD_Q_BCD_TRACKS = 0x02,
92 CD_Q_NO_CHANGER = 0x04,
93 CD_Q_CHANGER = 0x08,
94 CD_Q_10_BYTE_ONLY = 0x10
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95} cd_quirks;
96
97typedef enum {
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98 CD_FLAG_INVALID = 0x0001,
99 CD_FLAG_NEW_DISC = 0x0002,
100 CD_FLAG_DISC_LOCKED = 0x0004,
101 CD_FLAG_DISC_REMOVABLE = 0x0008,
102 CD_FLAG_TAGGED_QUEUING = 0x0010,
103 CD_FLAG_CHANGER = 0x0040,
104 CD_FLAG_ACTIVE = 0x0080,
105 CD_FLAG_SCHED_ON_COMP = 0x0100,
106 CD_FLAG_RETRY_UA = 0x0200,
107 CD_FLAG_VALID_MEDIA = 0x0400,
108 CD_FLAG_VALID_TOC = 0x0800,
109 CD_FLAG_OPEN = 0x1000,
110 CD_FLAG_SCTX_INIT = 0x2000
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111} cd_flags;
112
113typedef enum {
114 CD_CCB_PROBE = 0x01,
115 CD_CCB_BUFFER_IO = 0x02,
116 CD_CCB_WAITING = 0x03,
117 CD_CCB_TYPE_MASK = 0x0F,
118 CD_CCB_RETRY_UA = 0x10
119} cd_ccb_state;
120
121typedef enum {
122 CHANGER_TIMEOUT_SCHED = 0x01,
123 CHANGER_SHORT_TMOUT_SCHED = 0x02,
124 CHANGER_MANUAL_CALL = 0x04,
125 CHANGER_NEED_TIMEOUT = 0x08
126} cd_changer_flags;
127
128#define ccb_state ppriv_field0
81b5c339 129#define ccb_bio ppriv_ptr1
984263bc 130
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131struct cd_tocdata {
132 struct ioc_toc_header header;
133 struct cd_toc_entry entries[100];
134};
135
136struct cd_toc_single {
137 struct ioc_toc_header header;
138 struct cd_toc_entry entry;
139};
140
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141typedef enum {
142 CD_STATE_PROBE,
143 CD_STATE_NORMAL
144} cd_state;
145
146struct cd_softc {
147 cam_pinfo pinfo;
148 cd_state state;
149 volatile cd_flags flags;
81b5c339 150 struct bio_queue_head bio_queue;
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151 LIST_HEAD(, ccb_hdr) pending_ccbs;
152 struct cd_params params;
153 struct disk disk;
154 union ccb saved_ccb;
155 cd_quirks quirks;
156 struct devstat device_stats;
157 STAILQ_ENTRY(cd_softc) changer_links;
158 struct cdchanger *changer;
159 int bufs_left;
160 struct cam_periph *periph;
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161 int minimum_command_size;
162 struct task sysctl_task;
163 struct sysctl_ctx_list sysctl_ctx;
164 struct sysctl_oid *sysctl_tree;
165 STAILQ_HEAD(, cd_mode_params) mode_queue;
166 struct cd_tocdata toc;
167};
168
169struct cd_page_sizes {
170 int page;
171 int page_size;
172};
173
174static struct cd_page_sizes cd_page_size_table[] =
175{
176 { AUDIO_PAGE, sizeof(struct cd_audio_page)}
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177};
178
179struct cd_quirk_entry {
180 struct scsi_inquiry_pattern inq_pat;
181 cd_quirks quirks;
182};
183
184/*
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185 * The changer quirk entries aren't strictly necessary. Basically, what
186 * they do is tell cdregister() up front that a device is a changer.
187 * Otherwise, it will figure that fact out once it sees a LUN on the device
188 * that is greater than 0. If it is known up front that a device is a changer,
189 * all I/O to the device will go through the changer scheduling routines, as
984263bc 190 * opposed to the "normal" CD code.
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191 *
192 * NOTE ON 10_BYTE_ONLY quirks: Any 10_BYTE_ONLY quirks MUST be because
193 * your device hangs when it gets a 10 byte command. Adding a quirk just
194 * to get rid of the informative diagnostic message is not acceptable. All
195 * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be
196 * referenced in a comment along with the quirk) , and must be approved by
197 * ken@FreeBSD.org. Any quirks added that don't adhere to this policy may
198 * be removed until the submitter can explain why they are needed.
199 * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary)
200 * when the CAM_NEW_TRAN_CODE work is done.
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201 */
202static struct cd_quirk_entry cd_quirk_table[] =
203{
204 {
205 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"},
206 /*quirks*/ CD_Q_CHANGER
207 },
208 {
209 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM*",
210 "*"}, /* quirks */ CD_Q_CHANGER
211 },
212 {
213 { T_CDROM, SIP_MEDIA_REMOVABLE, "NAKAMICH", "MJ-*", "*"},
214 /* quirks */ CD_Q_CHANGER
215 },
216 {
217 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"},
218 /* quirks */ CD_Q_BCD_TRACKS
219 }
220};
221
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222static d_open_t cdopen;
223static d_close_t cdclose;
224static d_ioctl_t cdioctl;
225static d_strategy_t cdstrategy;
226
227static periph_init_t cdinit;
228static periph_ctor_t cdregister;
229static periph_dtor_t cdcleanup;
230static periph_start_t cdstart;
231static periph_oninv_t cdoninvalidate;
232static void cdasync(void *callback_arg, u_int32_t code,
233 struct cam_path *path, void *arg);
62ade751 234static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS);
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235static void cdshorttimeout(void *arg);
236static void cdschedule(struct cam_periph *periph, int priority);
237static void cdrunchangerqueue(void *arg);
238static void cdchangerschedule(struct cd_softc *softc);
239static int cdrunccb(union ccb *ccb,
240 int (*error_routine)(union ccb *ccb,
241 u_int32_t cam_flags,
242 u_int32_t sense_flags),
243 u_int32_t cam_flags, u_int32_t sense_flags);
244static union ccb *cdgetccb(struct cam_periph *periph,
245 u_int32_t priority);
246static void cddone(struct cam_periph *periph,
247 union ccb *start_ccb);
248static int cderror(union ccb *ccb, u_int32_t cam_flags,
249 u_int32_t sense_flags);
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250static union cd_pages *cdgetpage(struct cd_mode_params *mode_params);
251static int cdgetpagesize(int page_num);
984263bc 252static void cdprevent(struct cam_periph *periph, int action);
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253static int cdcheckmedia(struct cam_periph *periph);
254static int cdsize(struct cam_periph *periph, u_int32_t *size);
255static int cd6byteworkaround(union ccb *ccb);
984263bc 256static int cdreadtoc(struct cam_periph *periph, u_int32_t mode,
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257 u_int32_t start, u_int8_t *data,
258 u_int32_t len, u_int32_t sense_flags);
984263bc 259static int cdgetmode(struct cam_periph *periph,
62ade751 260 struct cd_mode_params *data, u_int32_t page);
984263bc 261static int cdsetmode(struct cam_periph *periph,
62ade751 262 struct cd_mode_params *data);
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263static int cdplay(struct cam_periph *periph, u_int32_t blk,
264 u_int32_t len);
265static int cdreadsubchannel(struct cam_periph *periph,
266 u_int32_t mode, u_int32_t format,
267 int track,
268 struct cd_sub_channel_info *data,
269 u_int32_t len);
270static int cdplaymsf(struct cam_periph *periph, u_int32_t startm,
271 u_int32_t starts, u_int32_t startf,
272 u_int32_t endm, u_int32_t ends,
273 u_int32_t endf);
274static int cdplaytracks(struct cam_periph *periph,
275 u_int32_t strack, u_int32_t sindex,
276 u_int32_t etrack, u_int32_t eindex);
277static int cdpause(struct cam_periph *periph, u_int32_t go);
278static int cdstopunit(struct cam_periph *periph, u_int32_t eject);
62ade751 279static int cdstartunit(struct cam_periph *periph, int load);
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280static int cdsetspeed(struct cam_periph *periph,
281 u_int32_t rdspeed, u_int32_t wrspeed);
282static int cdreportkey(struct cam_periph *periph,
283 struct dvd_authinfo *authinfo);
284static int cdsendkey(struct cam_periph *periph,
285 struct dvd_authinfo *authinfo);
286static int cdreaddvdstructure(struct cam_periph *periph,
287 struct dvd_struct *dvdstruct);
288
289static struct periph_driver cddriver =
290{
291 cdinit, "cd",
292 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0
293};
294
295DATA_SET(periphdriver_set, cddriver);
296
297/* For 2.2-stable support */
298#ifndef D_DISK
299#define D_DISK 0
300#endif
301static struct cdevsw cd_cdevsw = {
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302 /* name */ "cd",
303 /* maj */ SCSICD_CDEV_MAJOR,
304 /* flags */ D_DISK,
305 /* port */ NULL,
455fcd7e 306 /* clone */ NULL,
fabb8ceb 307
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308 /* open */ cdopen,
309 /* close */ cdclose,
310 /* read */ physread,
311 /* write */ physwrite,
312 /* ioctl */ cdioctl,
313 /* poll */ nopoll,
314 /* mmap */ nommap,
315 /* strategy */ cdstrategy,
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316 /* dump */ nodump,
317 /* psize */ nopsize,
984263bc 318};
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319
320static struct extend_array *cdperiphs;
321static int num_changers;
322
323#ifndef CHANGER_MIN_BUSY_SECONDS
324#define CHANGER_MIN_BUSY_SECONDS 5
325#endif
326#ifndef CHANGER_MAX_BUSY_SECONDS
327#define CHANGER_MAX_BUSY_SECONDS 15
328#endif
329
330static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS;
331static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS;
332
333/*
334 * XXX KDM this CAM node should be moved if we ever get more CAM sysctl
335 * variables.
336 */
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337SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver");
338SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer");
339SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW,
340 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum");
62ade751 341TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds);
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342SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW,
343 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum");
62ade751 344TUNABLE_INT("kern.cam.cd.changer.max_busy_seconds", &changer_max_busy_seconds);
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345
346struct cdchanger {
347 path_id_t path_id;
348 target_id_t target_id;
349 int num_devices;
350 struct camq devq;
351 struct timeval start_time;
352 struct cd_softc *cur_device;
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353 struct callout short_handle;
354 struct callout long_handle;
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355 volatile cd_changer_flags flags;
356 STAILQ_ENTRY(cdchanger) changer_links;
357 STAILQ_HEAD(chdevlist, cd_softc) chluns;
358};
359
360static STAILQ_HEAD(changerlist, cdchanger) changerq;
361
362void
363cdinit(void)
364{
365 cam_status status;
366 struct cam_path *path;
367
368 /*
369 * Create our extend array for storing the devices we attach to.
370 */
371 cdperiphs = cam_extend_new();
372 if (cdperiphs == NULL) {
373 printf("cd: Failed to alloc extend array!\n");
374 return;
375 }
376
377 /*
378 * Install a global async callback. This callback will
379 * receive async callbacks like "new device found".
380 */
381 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
382 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
383
384 if (status == CAM_REQ_CMP) {
385 struct ccb_setasync csa;
386
387 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
388 csa.ccb_h.func_code = XPT_SASYNC_CB;
389 csa.event_enable = AC_FOUND_DEVICE;
390 csa.callback = cdasync;
391 csa.callback_arg = NULL;
392 xpt_action((union ccb *)&csa);
393 status = csa.ccb_h.status;
394 xpt_free_path(path);
395 }
396
397 if (status != CAM_REQ_CMP) {
398 printf("cd: Failed to attach master async callback "
399 "due to status 0x%x!\n", status);
400 }
401}
402
403static void
404cdoninvalidate(struct cam_periph *periph)
405{
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406 struct cd_softc *softc;
407 struct buf *q_bp;
81b5c339 408 struct bio *q_bio;
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409 struct ccb_setasync csa;
410
411 softc = (struct cd_softc *)periph->softc;
412
413 /*
414 * De-register any async callbacks.
415 */
416 xpt_setup_ccb(&csa.ccb_h, periph->path,
417 /* priority */ 5);
418 csa.ccb_h.func_code = XPT_SASYNC_CB;
419 csa.event_enable = 0;
420 csa.callback = cdasync;
421 csa.callback_arg = periph;
422 xpt_action((union ccb *)&csa);
423
424 softc->flags |= CD_FLAG_INVALID;
425
426 /*
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427 * Although the oninvalidate() routines are always while in a
428 * critical section, we need to be in a critical section here to
429 * keep the buffer queue from being modified while we traverse it.
984263bc 430 */
4e01b467 431 crit_enter();
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432
433 /*
434 * Return all queued I/O with ENXIO.
435 * XXX Handle any transactions queued to the card
436 * with XPT_ABORT_CCB.
437 */
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438 while ((q_bio = bioq_first(&softc->bio_queue)) != NULL){
439 bioq_remove(&softc->bio_queue, q_bio);
440 q_bp = q_bio->bio_buf;
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441 q_bp->b_resid = q_bp->b_bcount;
442 q_bp->b_error = ENXIO;
443 q_bp->b_flags |= B_ERROR;
81b5c339 444 biodone(q_bio);
984263bc 445 }
4e01b467 446 crit_exit();
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447
448 /*
449 * If this device is part of a changer, and it was scheduled
450 * to run, remove it from the run queue since we just nuked
451 * all of its scheduled I/O.
452 */
453 if ((softc->flags & CD_FLAG_CHANGER)
454 && (softc->pinfo.index != CAM_UNQUEUED_INDEX))
455 camq_remove(&softc->changer->devq, softc->pinfo.index);
456
457 xpt_print_path(periph->path);
458 printf("lost device\n");
459}
460
461static void
462cdcleanup(struct cam_periph *periph)
463{
464 struct cd_softc *softc;
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465
466 softc = (struct cd_softc *)periph->softc;
467
468 xpt_print_path(periph->path);
469 printf("removing device entry\n");
470
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471 if ((softc->flags & CD_FLAG_SCTX_INIT) != 0
472 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
473 xpt_print_path(periph->path);
474 printf("can't remove sysctl context\n");
475 }
476
4e01b467 477 crit_enter();
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478 /*
479 * In the queued, non-active case, the device in question
480 * has already been removed from the changer run queue. Since this
481 * device is active, we need to de-activate it, and schedule
482 * another device to run. (if there is another one to run)
483 */
484 if ((softc->flags & CD_FLAG_CHANGER)
485 && (softc->flags & CD_FLAG_ACTIVE)) {
486
487 /*
488 * The purpose of the short timeout is soley to determine
489 * whether the current device has finished or not. Well,
490 * since we're removing the active device, we know that it
491 * is finished. So, get rid of the short timeout.
492 * Otherwise, if we're in the time period before the short
493 * timeout fires, and there are no other devices in the
494 * queue to run, there won't be any other device put in the
495 * active slot. i.e., when we call cdrunchangerqueue()
496 * below, it won't do anything. Then, when the short
497 * timeout fires, it'll look at the "current device", which
498 * we are free below, and possibly panic the kernel on a
499 * bogus pointer reference.
500 *
501 * The long timeout doesn't really matter, since we
502 * decrement the qfrozen_cnt to indicate that there is
503 * nothing in the active slot now. Therefore, there won't
504 * be any bogus pointer references there.
505 */
506 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
5fa84fdd 507 callout_stop(&softc->changer->short_handle);
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508 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
509 }
510 softc->changer->devq.qfrozen_cnt--;
511 softc->changer->flags |= CHANGER_MANUAL_CALL;
512 cdrunchangerqueue(softc->changer);
513 }
514
515 /*
516 * If we're removing the last device on the changer, go ahead and
517 * remove the changer device structure.
518 */
519 if ((softc->flags & CD_FLAG_CHANGER)
520 && (--softc->changer->num_devices == 0)) {
521
522 /*
523 * Theoretically, there shouldn't be any timeouts left, but
524 * I'm not completely sure that that will be the case. So,
525 * it won't hurt to check and see if there are any left.
526 */
527 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) {
5fa84fdd 528 callout_stop(&softc->changer->long_handle);
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529 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED;
530 }
531
532 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
5fa84fdd 533 callout_stop(&softc->changer->short_handle);
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534 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
535 }
536
537 STAILQ_REMOVE(&changerq, softc->changer, cdchanger,
538 changer_links);
539 xpt_print_path(periph->path);
540 printf("removing changer entry\n");
541 free(softc->changer, M_DEVBUF);
542 num_changers--;
543 }
544 devstat_remove_entry(&softc->device_stats);
545 cam_extend_release(cdperiphs, periph->unit_number);
e4c9c0c8 546 if (softc->disk.d_rawdev) {
335dda38 547 disk_destroy(&softc->disk);
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548 }
549 free(softc, M_DEVBUF);
4e01b467 550 crit_exit();
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551}
552
553static void
554cdasync(void *callback_arg, u_int32_t code,
555 struct cam_path *path, void *arg)
556{
557 struct cam_periph *periph;
558
559 periph = (struct cam_periph *)callback_arg;
560 switch (code) {
561 case AC_FOUND_DEVICE:
562 {
563 struct ccb_getdev *cgd;
564 cam_status status;
565
566 cgd = (struct ccb_getdev *)arg;
567
568 if (SID_TYPE(&cgd->inq_data) != T_CDROM
569 && SID_TYPE(&cgd->inq_data) != T_WORM)
570 break;
571
572 /*
573 * Allocate a peripheral instance for
574 * this device and start the probe
575 * process.
576 */
577 status = cam_periph_alloc(cdregister, cdoninvalidate,
578 cdcleanup, cdstart,
579 "cd", CAM_PERIPH_BIO,
580 cgd->ccb_h.path, cdasync,
581 AC_FOUND_DEVICE, cgd);
582
583 if (status != CAM_REQ_CMP
584 && status != CAM_REQ_INPROG)
585 printf("cdasync: Unable to attach new device "
586 "due to status 0x%x\n", status);
587
588 break;
589 }
590 case AC_SENT_BDR:
591 case AC_BUS_RESET:
592 {
593 struct cd_softc *softc;
594 struct ccb_hdr *ccbh;
984263bc
MD
595
596 softc = (struct cd_softc *)periph->softc;
4e01b467 597 crit_enter();
984263bc
MD
598 /*
599 * Don't fail on the expected unit attention
600 * that will occur.
601 */
602 softc->flags |= CD_FLAG_RETRY_UA;
603 for (ccbh = LIST_FIRST(&softc->pending_ccbs);
604 ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le))
605 ccbh->ccb_state |= CD_CCB_RETRY_UA;
4e01b467 606 crit_exit();
984263bc
MD
607 /* FALLTHROUGH */
608 }
609 default:
610 cam_periph_async(periph, code, path, arg);
611 break;
612 }
613}
614
62ade751
MD
615static void
616cdsysctlinit(void *context, int pending)
617{
618 struct cam_periph *periph;
619 struct cd_softc *softc;
620 char tmpstr[80], tmpstr2[80];
621
622 periph = (struct cam_periph *)context;
623 softc = (struct cd_softc *)periph->softc;
624
625 snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number);
626 snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
627
628 sysctl_ctx_init(&softc->sysctl_ctx);
629 softc->flags |= CD_FLAG_SCTX_INIT;
630 softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
631 SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO,
632 tmpstr2, CTLFLAG_RD, 0, tmpstr);
633
634 if (softc->sysctl_tree == NULL) {
635 printf("cdsysctlinit: unable to allocate sysctl tree\n");
636 return;
637 }
638
639 /*
640 * Now register the sysctl handler, so the user can the value on
641 * the fly.
642 */
643 SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
644 OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
645 &softc->minimum_command_size, 0, cdcmdsizesysctl, "I",
646 "Minimum CDB size");
647}
648
649/*
650 * We have a handler function for this so we can check the values when the
651 * user sets them, instead of every time we look at them.
652 */
653static int
654cdcmdsizesysctl(SYSCTL_HANDLER_ARGS)
655{
656 int error, value;
657
658 value = *(int *)arg1;
659
660 error = sysctl_handle_int(oidp, &value, 0, req);
661
662 if ((error != 0) || (req->newptr == NULL))
663 return (error);
664
665 /*
666 * The only real values we can have here are 6 or 10. I don't
667 * really forsee having 12 be an option at any time in the future.
668 * So if the user sets something less than or equal to 6, we'll set
669 * it to 6. If he sets something greater than 6, we'll set it to 10.
670 *
671 * I suppose we could just return an error here for the wrong values,
672 * but I don't think it's necessary to do so, as long as we can
673 * determine the user's intent without too much trouble.
674 */
675 if (value < 6)
676 value = 6;
677 else if (value > 6)
678 value = 10;
679
680 *(int *)arg1 = value;
681
682 return (0);
683}
684
685
984263bc
MD
686static cam_status
687cdregister(struct cam_periph *periph, void *arg)
688{
689 struct cd_softc *softc;
690 struct ccb_setasync csa;
62ade751 691 struct ccb_pathinq cpi;
984263bc 692 struct ccb_getdev *cgd;
62ade751 693 char tmpstr[80];
984263bc
MD
694 caddr_t match;
695
696 cgd = (struct ccb_getdev *)arg;
697 if (periph == NULL) {
698 printf("cdregister: periph was NULL!!\n");
699 return(CAM_REQ_CMP_ERR);
700 }
701 if (cgd == NULL) {
702 printf("cdregister: no getdev CCB, can't register device\n");
703 return(CAM_REQ_CMP_ERR);
704 }
705
ad86f6b6 706 softc = malloc(sizeof(*softc), M_DEVBUF, M_INTWAIT | M_ZERO);
984263bc 707 LIST_INIT(&softc->pending_ccbs);
62ade751 708 STAILQ_INIT(&softc->mode_queue);
984263bc 709 softc->state = CD_STATE_PROBE;
81b5c339 710 bioq_init(&softc->bio_queue);
984263bc
MD
711 if (SID_IS_REMOVABLE(&cgd->inq_data))
712 softc->flags |= CD_FLAG_DISC_REMOVABLE;
713 if ((cgd->inq_data.flags & SID_CmdQue) != 0)
714 softc->flags |= CD_FLAG_TAGGED_QUEUING;
715
716 periph->softc = softc;
717 softc->periph = periph;
718
719 cam_extend_set(cdperiphs, periph->unit_number, periph);
720
721 /*
722 * See if this device has any quirks.
723 */
724 match = cam_quirkmatch((caddr_t)&cgd->inq_data,
725 (caddr_t)cd_quirk_table,
726 sizeof(cd_quirk_table)/sizeof(*cd_quirk_table),
727 sizeof(*cd_quirk_table), scsi_inquiry_match);
728
729 if (match != NULL)
730 softc->quirks = ((struct cd_quirk_entry *)match)->quirks;
731 else
732 softc->quirks = CD_Q_NONE;
733
62ade751
MD
734 /* Check if the SIM does not want 6 byte commands */
735 xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1);
736 cpi.ccb_h.func_code = XPT_PATH_INQ;
737 xpt_action((union ccb *)&cpi);
738 if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
739 softc->quirks |= CD_Q_10_BYTE_ONLY;
740
741 TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph);
742
743 /* The default is 6 byte commands, unless quirked otherwise */
744 if (softc->quirks & CD_Q_10_BYTE_ONLY)
745 softc->minimum_command_size = 10;
746 else
747 softc->minimum_command_size = 6;
748
749 /*
750 * Load the user's default, if any.
751 */
752 snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size",
753 periph->unit_number);
754 TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size);
755
756 /* 6 and 10 are the only permissible values here. */
757 if (softc->minimum_command_size < 6)
758 softc->minimum_command_size = 6;
759 else if (softc->minimum_command_size > 6)
760 softc->minimum_command_size = 10;
761
984263bc
MD
762 /*
763 * We need to register the statistics structure for this device,
764 * but we don't have the blocksize yet for it. So, we register
765 * the structure and indicate that we don't have the blocksize
766 * yet. Unlike other SCSI peripheral drivers, we explicitly set
767 * the device type here to be CDROM, rather than just ORing in
768 * the device type. This is because this driver can attach to either
769 * CDROM or WORM devices, and we want this peripheral driver to
770 * show up in the devstat list as a CD peripheral driver, not a
771 * WORM peripheral driver. WORM drives will also have the WORM
772 * driver attached to them.
773 */
774 devstat_add_entry(&softc->device_stats, "cd",
775 periph->unit_number, 0,
776 DEVSTAT_BS_UNAVAILABLE,
777 DEVSTAT_TYPE_CDROM | DEVSTAT_TYPE_IF_SCSI,
778 DEVSTAT_PRIORITY_CD);
779 disk_create(periph->unit_number, &softc->disk,
335dda38 780 DSO_ONESLICE | DSO_COMPATLABEL, &cd_cdevsw);
984263bc
MD
781
782 /*
783 * Add an async callback so that we get
784 * notified if this device goes away.
785 */
786 xpt_setup_ccb(&csa.ccb_h, periph->path,
787 /* priority */ 5);
788 csa.ccb_h.func_code = XPT_SASYNC_CB;
789 csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
790 csa.callback = cdasync;
791 csa.callback_arg = periph;
792 xpt_action((union ccb *)&csa);
793
794 /*
795 * If the target lun is greater than 0, we most likely have a CD
796 * changer device. Check the quirk entries as well, though, just
797 * in case someone has a CD tower with one lun per drive or
798 * something like that. Also, if we know up front that a
799 * particular device is a changer, we can mark it as such starting
800 * with lun 0, instead of lun 1. It shouldn't be necessary to have
801 * a quirk entry to define something as a changer, however.
802 */
803 if (((cgd->ccb_h.target_lun > 0)
804 && ((softc->quirks & CD_Q_NO_CHANGER) == 0))
805 || ((softc->quirks & CD_Q_CHANGER) != 0)) {
806 struct cdchanger *nchanger;
807 struct cam_periph *nperiph;
808 struct cam_path *path;
809 cam_status status;
810 int found;
811
812 /* Set the changer flag in the current device's softc */
813 softc->flags |= CD_FLAG_CHANGER;
814
815 if (num_changers == 0)
816 STAILQ_INIT(&changerq);
817
818 /*
819 * Now, look around for an existing changer device with the
820 * same path and target ID as the current device.
821 */
822 for (found = 0,
823 nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq);
824 nchanger != NULL;
825 nchanger = STAILQ_NEXT(nchanger, changer_links)){
826 if ((nchanger->path_id == cgd->ccb_h.path_id)
827 && (nchanger->target_id == cgd->ccb_h.target_id)) {
828 found = 1;
829 break;
830 }
831 }
832
833 /*
834 * If we found a matching entry, just add this device to
835 * the list of devices on this changer.
836 */
837 if (found == 1) {
838 struct chdevlist *chlunhead;
839
840 chlunhead = &nchanger->chluns;
841
842 /*
843 * XXX KDM look at consolidating this code with the
844 * code below in a separate function.
845 */
846
847 /*
848 * Create a path with lun id 0, and see if we can
849 * find a matching device
850 */
851 status = xpt_create_path(&path, /*periph*/ periph,
852 cgd->ccb_h.path_id,
853 cgd->ccb_h.target_id, 0);
854
855 if ((status == CAM_REQ_CMP)
856 && ((nperiph = cam_periph_find(path, "cd")) != NULL)){
857 struct cd_softc *nsoftc;
858
859 nsoftc = (struct cd_softc *)nperiph->softc;
860
861 if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){
862 nsoftc->flags |= CD_FLAG_CHANGER;
863 nchanger->num_devices++;
864 if (camq_resize(&nchanger->devq,
865 nchanger->num_devices)!=CAM_REQ_CMP){
866 printf("cdregister: "
867 "camq_resize "
868 "failed, changer "
869 "support may "
870 "be messed up\n");
871 }
872 nsoftc->changer = nchanger;
873 nsoftc->pinfo.index =CAM_UNQUEUED_INDEX;
874
875 STAILQ_INSERT_TAIL(&nchanger->chluns,
876 nsoftc,changer_links);
877 }
878 xpt_free_path(path);
879 } else if (status == CAM_REQ_CMP)
880 xpt_free_path(path);
881 else {
882 printf("cdregister: unable to allocate path\n"
883 "cdregister: changer support may be "
884 "broken\n");
885 }
886
887 nchanger->num_devices++;
888
889 softc->changer = nchanger;
890 softc->pinfo.index = CAM_UNQUEUED_INDEX;
891
892 if (camq_resize(&nchanger->devq,
893 nchanger->num_devices) != CAM_REQ_CMP) {
894 printf("cdregister: camq_resize "
895 "failed, changer support may "
896 "be messed up\n");
897 }
898
899 STAILQ_INSERT_TAIL(chlunhead, softc, changer_links);
900 }
901 /*
902 * In this case, we don't already have an entry for this
903 * particular changer, so we need to create one, add it to
904 * the queue, and queue this device on the list for this
905 * changer. Before we queue this device, however, we need
906 * to search for lun id 0 on this target, and add it to the
907 * queue first, if it exists. (and if it hasn't already
908 * been marked as part of the changer.)
909 */
910 else {
911 nchanger = malloc(sizeof(struct cdchanger),
5fa84fdd
MD
912 M_DEVBUF, M_INTWAIT | M_ZERO);
913 callout_init(&nchanger->short_handle);
914 callout_init(&nchanger->long_handle);
984263bc
MD
915 if (camq_init(&nchanger->devq, 1) != 0) {
916 softc->flags &= ~CD_FLAG_CHANGER;
917 printf("cdregister: changer support "
918 "disabled\n");
919 goto cdregisterexit;
920 }
921
922 num_changers++;
923
924 nchanger->path_id = cgd->ccb_h.path_id;
925 nchanger->target_id = cgd->ccb_h.target_id;
926
927 /* this is superfluous, but it makes things clearer */
928 nchanger->num_devices = 0;
929
930 STAILQ_INIT(&nchanger->chluns);
931
932 STAILQ_INSERT_TAIL(&changerq, nchanger,
933 changer_links);
934
935 /*
936 * Create a path with lun id 0, and see if we can
937 * find a matching device
938 */
939 status = xpt_create_path(&path, /*periph*/ periph,
940 cgd->ccb_h.path_id,
941 cgd->ccb_h.target_id, 0);
942
943 /*
944 * If we were able to allocate the path, and if we
945 * find a matching device and it isn't already
946 * marked as part of a changer, then we add it to
947 * the current changer.
948 */
949 if ((status == CAM_REQ_CMP)
950 && ((nperiph = cam_periph_find(path, "cd")) != NULL)
951 && ((((struct cd_softc *)periph->softc)->flags &
952 CD_FLAG_CHANGER) == 0)) {
953 struct cd_softc *nsoftc;
954
955 nsoftc = (struct cd_softc *)nperiph->softc;
956
957 nsoftc->flags |= CD_FLAG_CHANGER;
958 nchanger->num_devices++;
959 if (camq_resize(&nchanger->devq,
960 nchanger->num_devices) != CAM_REQ_CMP) {
961 printf("cdregister: camq_resize "
962 "failed, changer support may "
963 "be messed up\n");
964 }
965 nsoftc->changer = nchanger;
966 nsoftc->pinfo.index = CAM_UNQUEUED_INDEX;
967
968 STAILQ_INSERT_TAIL(&nchanger->chluns,
969 nsoftc, changer_links);
970 xpt_free_path(path);
971 } else if (status == CAM_REQ_CMP)
972 xpt_free_path(path);
973 else {
974 printf("cdregister: unable to allocate path\n"
975 "cdregister: changer support may be "
976 "broken\n");
977 }
978
979 softc->changer = nchanger;
980 softc->pinfo.index = CAM_UNQUEUED_INDEX;
981 nchanger->num_devices++;
982 if (camq_resize(&nchanger->devq,
983 nchanger->num_devices) != CAM_REQ_CMP) {
984 printf("cdregister: camq_resize "
985 "failed, changer support may "
986 "be messed up\n");
987 }
988 STAILQ_INSERT_TAIL(&nchanger->chluns, softc,
989 changer_links);
990 }
991 }
992
993cdregisterexit:
994
995 /* Lock this peripheral until we are setup */
996 /* Can't block */
377d4740 997 cam_periph_lock(periph, 0);
984263bc
MD
998
999 if ((softc->flags & CD_FLAG_CHANGER) == 0)
1000 xpt_schedule(periph, /*priority*/5);
1001 else
1002 cdschedule(periph, /*priority*/ 5);
1003
1004 return(CAM_REQ_CMP);
1005}
1006
1007static int
41c20dac 1008cdopen(dev_t dev, int flags, int fmt, struct thread *td)
984263bc 1009{
984263bc
MD
1010 struct cam_periph *periph;
1011 struct cd_softc *softc;
984263bc 1012 int unit, error;
984263bc
MD
1013
1014 unit = dkunit(dev);
1015 periph = cam_extend_get(cdperiphs, unit);
1016
1017 if (periph == NULL)
1018 return (ENXIO);
1019
1020 softc = (struct cd_softc *)periph->softc;
1021
1022 /*
4e01b467 1023 * Grab a critical section and hold it until we lock the peripheral.
984263bc 1024 */
4e01b467 1025 crit_enter();
984263bc 1026 if (softc->flags & CD_FLAG_INVALID) {
4e01b467 1027 crit_exit();
984263bc
MD
1028 return(ENXIO);
1029 }
1030
377d4740 1031 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
4e01b467 1032 crit_exit();
984263bc
MD
1033 return (error);
1034 }
1035
4e01b467 1036 crit_exit();
984263bc
MD
1037
1038 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
1039 return(ENXIO);
1040
984263bc 1041 /*
62ade751
MD
1042 * Check for media, and set the appropriate flags. We don't bail
1043 * if we don't have media, but then we don't allow anything but the
1044 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media.
1045 *
1046 * XXX KDM for now, we do fail the open if we don't have media. We
1047 * can change this once we've figured out how to make the slice
1048 * code work well with media changing underneath it.
984263bc 1049 */
62ade751 1050 error = cdcheckmedia(periph);
984263bc 1051
62ade751
MD
1052 if (error == 0)
1053 softc->flags |= CD_FLAG_OPEN;
984263bc
MD
1054
1055 cam_periph_unlock(periph);
1056
1057 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n"));
1058
1059 return (error);
1060}
1061
1062static int
41c20dac 1063cdclose(dev_t dev, int flag, int fmt, struct thread *td)
984263bc
MD
1064{
1065 struct cam_periph *periph;
1066 struct cd_softc *softc;
1067 int unit, error;
1068
1069 unit = dkunit(dev);
1070 periph = cam_extend_get(cdperiphs, unit);
1071 if (periph == NULL)
1072 return (ENXIO);
1073
1074 softc = (struct cd_softc *)periph->softc;
1075
377d4740 1076 if ((error = cam_periph_lock(periph, 0)) != 0)
984263bc
MD
1077 return (error);
1078
1079 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)
1080 cdprevent(periph, PR_ALLOW);
1081
1082 /*
1083 * Unconditionally set the dsopen() flags back to their default
1084 * state.
1085 */
1086 softc->disk.d_dsflags &= ~DSO_NOLABELS;
1087 softc->disk.d_dsflags |= DSO_COMPATLABEL;
1088
1089 /*
1090 * Since we're closing this CD, mark the blocksize as unavailable.
62ade751 1091 * It will be marked as available when the CD is opened again.
984263bc
MD
1092 */
1093 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE;
1094
62ade751
MD
1095 /*
1096 * We'll check the media and toc again at the next open().
1097 */
1098 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
1099
1100 softc->flags &= ~CD_FLAG_OPEN;
1101
984263bc
MD
1102 cam_periph_unlock(periph);
1103 cam_periph_release(periph);
1104
1105 return (0);
1106}
1107
1108static void
1109cdshorttimeout(void *arg)
1110{
1111 struct cdchanger *changer;
984263bc 1112
4e01b467 1113 crit_enter();
984263bc
MD
1114
1115 changer = (struct cdchanger *)arg;
1116
1117 /* Always clear the short timeout flag, since that's what we're in */
1118 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
1119
1120 /*
1121 * Check to see if there is any more pending or outstanding I/O for
1122 * this device. If not, move it out of the active slot.
1123 */
81b5c339 1124 if ((bioq_first(&changer->cur_device->bio_queue) == NULL)
984263bc
MD
1125 && (changer->cur_device->device_stats.busy_count == 0)) {
1126 changer->flags |= CHANGER_MANUAL_CALL;
1127 cdrunchangerqueue(changer);
1128 }
4e01b467 1129 crit_exit();
984263bc
MD
1130}
1131
1132/*
1133 * This is a wrapper for xpt_schedule. It only applies to changers.
1134 */
1135static void
1136cdschedule(struct cam_periph *periph, int priority)
1137{
1138 struct cd_softc *softc;
984263bc 1139
4e01b467 1140 crit_enter();
984263bc
MD
1141
1142 softc = (struct cd_softc *)periph->softc;
1143
1144 /*
1145 * If this device isn't currently queued, and if it isn't
1146 * the active device, then we queue this device and run the
1147 * changer queue if there is no timeout scheduled to do it.
1148 * If this device is the active device, just schedule it
1149 * to run again. If this device is queued, there should be
1150 * a timeout in place already that will make sure it runs.
1151 */
1152 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX)
1153 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) {
1154 /*
1155 * We don't do anything with the priority here.
1156 * This is strictly a fifo queue.
1157 */
1158 softc->pinfo.priority = 1;
1159 softc->pinfo.generation = ++softc->changer->devq.generation;
1160 camq_insert(&softc->changer->devq, (cam_pinfo *)softc);
1161
1162 /*
1163 * Since we just put a device in the changer queue,
1164 * check and see if there is a timeout scheduled for
1165 * this changer. If so, let the timeout handle
1166 * switching this device into the active slot. If
1167 * not, manually call the timeout routine to
1168 * bootstrap things.
1169 */
1170 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0)
1171 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)
1172 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){
1173 softc->changer->flags |= CHANGER_MANUAL_CALL;
1174 cdrunchangerqueue(softc->changer);
1175 }
1176 } else if ((softc->flags & CD_FLAG_ACTIVE)
4e01b467 1177 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0)) {
984263bc 1178 xpt_schedule(periph, priority);
4e01b467
MD
1179 }
1180 crit_exit();
984263bc
MD
1181}
1182
1183static void
1184cdrunchangerqueue(void *arg)
1185{
1186 struct cd_softc *softc;
1187 struct cdchanger *changer;
1188 int called_from_timeout;
984263bc 1189
4e01b467 1190 crit_enter();
984263bc
MD
1191
1192 changer = (struct cdchanger *)arg;
1193
1194 /*
1195 * If we have NOT been called from cdstrategy() or cddone(), and
1196 * instead from a timeout routine, go ahead and clear the
1197 * timeout flag.
1198 */
1199 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) {
1200 changer->flags &= ~CHANGER_TIMEOUT_SCHED;
1201 called_from_timeout = 1;
1202 } else
1203 called_from_timeout = 0;
1204
1205 /* Always clear the manual call flag */
1206 changer->flags &= ~CHANGER_MANUAL_CALL;
1207
1208 /* nothing to do if the queue is empty */
1209 if (changer->devq.entries <= 0) {
4e01b467 1210 crit_exit();
984263bc
MD
1211 return;
1212 }
1213
1214 /*
1215 * If the changer queue is frozen, that means we have an active
1216 * device.
1217 */
1218 if (changer->devq.qfrozen_cnt > 0) {
1219
1220 if (changer->cur_device->device_stats.busy_count > 0) {
1221 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP;
1222 changer->cur_device->bufs_left =
1223 changer->cur_device->device_stats.busy_count;
1224 if (called_from_timeout) {
5fa84fdd
MD
1225 callout_reset(&changer->long_handle,
1226 changer_max_busy_seconds * hz,
1227 cdrunchangerqueue, changer);
984263bc
MD
1228 changer->flags |= CHANGER_TIMEOUT_SCHED;
1229 }
4e01b467 1230 crit_exit();
984263bc
MD
1231 return;
1232 }
1233
1234 /*
1235 * We always need to reset the frozen count and clear the
1236 * active flag.
1237 */
1238 changer->devq.qfrozen_cnt--;
1239 changer->cur_device->flags &= ~CD_FLAG_ACTIVE;
1240 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP;
1241
1242 /*
1243 * Check to see whether the current device has any I/O left
1244 * to do. If so, requeue it at the end of the queue. If
1245 * not, there is no need to requeue it.
1246 */
81b5c339 1247 if (bioq_first(&changer->cur_device->bio_queue) != NULL) {
984263bc
MD
1248
1249 changer->cur_device->pinfo.generation =
1250 ++changer->devq.generation;
1251 camq_insert(&changer->devq,
1252 (cam_pinfo *)changer->cur_device);
1253 }
1254 }
1255
1256 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD);
1257
1258 changer->cur_device = softc;
1259
1260 changer->devq.qfrozen_cnt++;
1261 softc->flags |= CD_FLAG_ACTIVE;
1262
1263 /* Just in case this device is waiting */
1264 wakeup(&softc->changer);
1265 xpt_schedule(softc->periph, /*priority*/ 1);
1266
1267 /*
1268 * Get rid of any pending timeouts, and set a flag to schedule new
1269 * ones so this device gets its full time quantum.
1270 */
1271 if (changer->flags & CHANGER_TIMEOUT_SCHED) {
5fa84fdd 1272 callout_stop(&changer->long_handle);
984263bc
MD
1273 changer->flags &= ~CHANGER_TIMEOUT_SCHED;
1274 }
1275
1276 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
5fa84fdd 1277 callout_stop(&changer->short_handle);
984263bc
MD
1278 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
1279 }
1280
1281 /*
1282 * We need to schedule timeouts, but we only do this after the
1283 * first transaction has completed. This eliminates the changer
1284 * switch time.
1285 */
1286 changer->flags |= CHANGER_NEED_TIMEOUT;
1287
4e01b467 1288 crit_exit();
984263bc
MD
1289}
1290
1291static void
1292cdchangerschedule(struct cd_softc *softc)
1293{
1294 struct cdchanger *changer;
984263bc 1295
4e01b467 1296 crit_enter();
984263bc
MD
1297
1298 changer = softc->changer;
1299
1300 /*
1301 * If this is a changer, and this is the current device,
1302 * and this device has at least the minimum time quantum to
1303 * run, see if we can switch it out.
1304 */
1305 if ((softc->flags & CD_FLAG_ACTIVE)
1306 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0)
1307 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) {
1308 /*
1309 * We try three things here. The first is that we
1310 * check to see whether the schedule on completion
1311 * flag is set. If it is, we decrement the number
1312 * of buffers left, and if it's zero, we reschedule.
1313 * Next, we check to see whether the pending buffer
1314 * queue is empty and whether there are no
1315 * outstanding transactions. If so, we reschedule.
1316 * Next, we see if the pending buffer queue is empty.
1317 * If it is, we set the number of buffers left to
1318 * the current active buffer count and set the
1319 * schedule on complete flag.
1320 */
1321 if (softc->flags & CD_FLAG_SCHED_ON_COMP) {
1322 if (--softc->bufs_left == 0) {
1323 softc->changer->flags |=
1324 CHANGER_MANUAL_CALL;
1325 softc->flags &= ~CD_FLAG_SCHED_ON_COMP;
1326 cdrunchangerqueue(softc->changer);
1327 }
81b5c339 1328 } else if ((bioq_first(&softc->bio_queue) == NULL)
984263bc
MD
1329 && (softc->device_stats.busy_count == 0)) {
1330 softc->changer->flags |= CHANGER_MANUAL_CALL;
1331 cdrunchangerqueue(softc->changer);
1332 }
1333 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT)
1334 && (softc->flags & CD_FLAG_ACTIVE)) {
1335
1336 /*
1337 * Now that the first transaction to this
1338 * particular device has completed, we can go ahead
1339 * and schedule our timeouts.
1340 */
1341 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) {
5fa84fdd
MD
1342 callout_reset(&changer->long_handle,
1343 changer_max_busy_seconds * hz,
1344 cdrunchangerqueue, changer);
984263bc
MD
1345 changer->flags |= CHANGER_TIMEOUT_SCHED;
1346 } else
1347 printf("cdchangerschedule: already have a long"
1348 " timeout!\n");
1349
1350 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) {
5fa84fdd
MD
1351 callout_reset(&changer->short_handle,
1352 changer_min_busy_seconds * hz,
1353 cdshorttimeout, changer);
984263bc
MD
1354 changer->flags |= CHANGER_SHORT_TMOUT_SCHED;
1355 } else
1356 printf("cdchangerschedule: already have a short "
1357 "timeout!\n");
1358
1359 /*
1360 * We just scheduled timeouts, no need to schedule
1361 * more.
1362 */
1363 changer->flags &= ~CHANGER_NEED_TIMEOUT;
1364
1365 }
4e01b467 1366 crit_exit();
984263bc
MD
1367}
1368
1369static int
1370cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb,
1371 u_int32_t cam_flags,
1372 u_int32_t sense_flags),
1373 u_int32_t cam_flags, u_int32_t sense_flags)
1374{
1375 struct cd_softc *softc;
1376 struct cam_periph *periph;
1377 int error;
1378
1379 periph = xpt_path_periph(ccb->ccb_h.path);
1380 softc = (struct cd_softc *)periph->softc;
1381
1382 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags,
1383 &softc->device_stats);
1384
1385 if (softc->flags & CD_FLAG_CHANGER)
1386 cdchangerschedule(softc);
1387
1388 return(error);
1389}
1390
1391static union ccb *
1392cdgetccb(struct cam_periph *periph, u_int32_t priority)
1393{
1394 struct cd_softc *softc;
984263bc
MD
1395
1396 softc = (struct cd_softc *)periph->softc;
1397
1398 if (softc->flags & CD_FLAG_CHANGER) {
4e01b467 1399 crit_enter();
984263bc
MD
1400
1401 /*
1402 * This should work the first time this device is woken up,
1403 * but just in case it doesn't, we use a while loop.
1404 */
1405 while ((softc->flags & CD_FLAG_ACTIVE) == 0) {
1406 /*
1407 * If this changer isn't already queued, queue it up.
1408 */
1409 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) {
1410 softc->pinfo.priority = 1;
1411 softc->pinfo.generation =
1412 ++softc->changer->devq.generation;
1413 camq_insert(&softc->changer->devq,
1414 (cam_pinfo *)softc);
1415 }
1416 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0)
1417 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)
1418 && ((softc->changer->flags
1419 & CHANGER_SHORT_TMOUT_SCHED)==0)) {
1420 softc->changer->flags |= CHANGER_MANUAL_CALL;
1421 cdrunchangerqueue(softc->changer);
1422 } else
377d4740 1423 tsleep(&softc->changer, 0, "cgticb", 0);
984263bc 1424 }
4e01b467 1425 crit_exit();
984263bc
MD
1426 }
1427 return(cam_periph_getccb(periph, priority));
1428}
1429
984263bc
MD
1430/*
1431 * Actually translate the requested transfer into one the physical driver
1432 * can understand. The transfer is described by a buf and will include
1433 * only one physical transfer.
1434 */
1435static void
81b5c339 1436cdstrategy(dev_t dev, struct bio *bio)
984263bc 1437{
81b5c339 1438 struct buf *bp = bio->bio_buf;
984263bc
MD
1439 struct cam_periph *periph;
1440 struct cd_softc *softc;
1441 u_int unit, part;
984263bc 1442
81b5c339
MD
1443 unit = dkunit(dev);
1444 part = dkpart(dev);
984263bc
MD
1445 periph = cam_extend_get(cdperiphs, unit);
1446 if (periph == NULL) {
1447 bp->b_error = ENXIO;
1448 goto bad;
1449 }
1450
1451 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n"));
1452
1453 softc = (struct cd_softc *)periph->softc;
1454
1455 /*
1456 * Mask interrupts so that the pack cannot be invalidated until
1457 * after we are in the queue. Otherwise, we might not properly
1458 * clean up one of the buffers.
1459 */
4e01b467 1460 crit_enter();
984263bc
MD
1461
1462 /*
1463 * If the device has been made invalid, error out
1464 */
1465 if ((softc->flags & CD_FLAG_INVALID)) {
4e01b467 1466 crit_exit();
984263bc
MD
1467 bp->b_error = ENXIO;
1468 goto bad;
1469 }
1470
62ade751
MD
1471 /*
1472 * If we don't have valid media, look for it before trying to
1473 * schedule the I/O.
1474 */
1475 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) {
1476 int error;
1477
1478 error = cdcheckmedia(periph);
1479 if (error != 0) {
4e01b467 1480 crit_exit();
62ade751
MD
1481 bp->b_error = error;
1482 goto bad;
1483 }
1484 }
1485
984263bc
MD
1486 /*
1487 * Place it in the queue of disk activities for this disk
1488 */
81b5c339 1489 bioqdisksort(&softc->bio_queue, bio);
984263bc 1490
4e01b467 1491 crit_exit();
984263bc
MD
1492
1493 /*
1494 * Schedule ourselves for performing the work. We do things
1495 * differently for changers.
1496 */
1497 if ((softc->flags & CD_FLAG_CHANGER) == 0)
1498 xpt_schedule(periph, /* XXX priority */1);
1499 else
1500 cdschedule(periph, /* priority */ 1);
1501
1502 return;
1503bad:
1504 bp->b_flags |= B_ERROR;
1505 /*
1506 * Correctly set the buf to indicate a completed xfer
1507 */
1508 bp->b_resid = bp->b_bcount;
81b5c339 1509 biodone(bio);
984263bc
MD
1510}
1511
1512static void
1513cdstart(struct cam_periph *periph, union ccb *start_ccb)
1514{
1515 struct cd_softc *softc;
81b5c339 1516 struct bio *bio;
984263bc
MD
1517 struct buf *bp;
1518 struct ccb_scsiio *csio;
1519 struct scsi_read_capacity_data *rcap;
984263bc
MD
1520
1521 softc = (struct cd_softc *)periph->softc;
1522
1523 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n"));
1524
1525 switch (softc->state) {
1526 case CD_STATE_NORMAL:
1527 {
4e01b467 1528 crit_enter();
81b5c339 1529 bio = bioq_first(&softc->bio_queue);
984263bc
MD
1530 if (periph->immediate_priority <= periph->pinfo.priority) {
1531 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING;
1532
1533 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1534 periph_links.sle);
1535 periph->immediate_priority = CAM_PRIORITY_NONE;
4e01b467 1536 crit_exit();
984263bc 1537 wakeup(&periph->ccb_list);
81b5c339 1538 } else if (bio == NULL) {
4e01b467 1539 crit_exit();
984263bc
MD
1540 xpt_release_ccb(start_ccb);
1541 } else {
81b5c339
MD
1542 bp = bio->bio_buf;
1543 bioq_remove(&softc->bio_queue, bio);
984263bc
MD
1544
1545 devstat_start_transaction(&softc->device_stats);
1546
54078292
MD
1547 KKASSERT(bio->bio_offset % softc->params.blksize == 0);
1548
984263bc
MD
1549 scsi_read_write(&start_ccb->csio,
1550 /*retries*/4,
1551 /* cbfcnp */ cddone,
1552 (bp->b_flags & B_ORDERED) != 0 ?
1553 MSG_ORDERED_Q_TAG :
1554 MSG_SIMPLE_Q_TAG,
10f3fee5 1555 /* read */(bp->b_cmd == BUF_CMD_READ),
984263bc
MD
1556 /* byte2 */ 0,
1557 /* minimum_cmd_size */ 10,
54078292
MD
1558 /* lba */
1559 bio->bio_offset / softc->params.blksize,
984263bc
MD
1560 bp->b_bcount / softc->params.blksize,
1561 /* data_ptr */ bp->b_data,
1562 /* dxfer_len */ bp->b_bcount,
1563 /* sense_len */ SSD_FULL_SIZE,
1564 /* timeout */ 30000);
1565 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO;
1566
1567
1568 /*
1569 * Block out any asyncronous callbacks
1570 * while we touch the pending ccb list.
1571 */
984263bc
MD
1572 LIST_INSERT_HEAD(&softc->pending_ccbs,
1573 &start_ccb->ccb_h, periph_links.le);
984263bc
MD
1574
1575 /* We expect a unit attention from this device */
1576 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) {
1577 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA;
1578 softc->flags &= ~CD_FLAG_RETRY_UA;
1579 }
1580
81b5c339
MD
1581 start_ccb->ccb_h.ccb_bio = bio;
1582 bio = bioq_first(&softc->bio_queue);
4e01b467 1583 crit_exit();
984263bc
MD
1584
1585 xpt_action(start_ccb);
1586 }
81b5c339 1587 if (bio != NULL) {
984263bc
MD
1588 /* Have more work to do, so ensure we stay scheduled */
1589 xpt_schedule(periph, /* XXX priority */1);
1590 }
1591 break;
1592 }
1593 case CD_STATE_PROBE:
1594 {
1595
898d961b 1596 rcap = malloc(sizeof(*rcap), M_TEMP, M_INTWAIT);
984263bc
MD
1597 csio = &start_ccb->csio;
1598 scsi_read_capacity(csio,
1599 /*retries*/1,
1600 cddone,
1601 MSG_SIMPLE_Q_TAG,
1602 rcap,
1603 SSD_FULL_SIZE,
1604 /*timeout*/20000);
81b5c339 1605 start_ccb->ccb_h.ccb_bio = NULL;
984263bc
MD
1606 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE;
1607 xpt_action(start_ccb);
1608 break;
1609 }
1610 }
1611}
1612
1613static void
1614cddone(struct cam_periph *periph, union ccb *done_ccb)
1615{
1616 struct cd_softc *softc;
1617 struct ccb_scsiio *csio;
1618
1619 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n"));
1620
1621 softc = (struct cd_softc *)periph->softc;
1622 csio = &done_ccb->csio;
1623
1624 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) {
1625 case CD_CCB_BUFFER_IO:
1626 {
1627 struct buf *bp;
81b5c339 1628 struct bio *bio;
984263bc 1629 int error;
984263bc 1630
81b5c339
MD
1631 bio = (struct bio *)done_ccb->ccb_h.ccb_bio;
1632 bp = bio->bio_buf;
984263bc
MD
1633 error = 0;
1634
1635 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1636 int sf;
1637
1638 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0)
1639 sf = SF_RETRY_UA;
1640 else
1641 sf = 0;
1642
1643 /* Retry selection timeouts */
1644 sf |= SF_RETRY_SELTO;
1645
1646 if ((error = cderror(done_ccb, 0, sf)) == ERESTART) {
1647 /*
1648 * A retry was scheuled, so
1649 * just return.
1650 */
1651 return;
1652 }
1653 }
1654
1655 if (error != 0) {
81b5c339 1656 struct bio *q_bio;
984263bc
MD
1657 struct buf *q_bp;
1658
1659 xpt_print_path(periph->path);
1660 printf("cddone: got error %#x back\n", error);
4e01b467 1661 crit_enter();
81b5c339
MD
1662 while ((q_bio = bioq_first(&softc->bio_queue)) != NULL) {
1663 bioq_remove(&softc->bio_queue, q_bio);
1664 q_bp = q_bio->bio_buf;
984263bc
MD
1665 q_bp->b_resid = q_bp->b_bcount;
1666 q_bp->b_error = EIO;
1667 q_bp->b_flags |= B_ERROR;
81b5c339 1668 biodone(q_bio);
984263bc 1669 }
4e01b467 1670 crit_exit();
984263bc
MD
1671 bp->b_resid = bp->b_bcount;
1672 bp->b_error = error;
1673 bp->b_flags |= B_ERROR;
1674 cam_release_devq(done_ccb->ccb_h.path,
1675 /*relsim_flags*/0,
1676 /*reduction*/0,
1677 /*timeout*/0,
1678 /*getcount_only*/0);
1679
1680 } else {
1681 bp->b_resid = csio->resid;
1682 bp->b_error = 0;
1683 if (bp->b_resid != 0) {
1684 /* Short transfer ??? */
1685 bp->b_flags |= B_ERROR;
1686 }
1687 }
1688
1689 /*
1690 * Block out any asyncronous callbacks
1691 * while we touch the pending ccb list.
1692 */
4e01b467 1693 crit_enter();
984263bc 1694 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
4e01b467 1695 crit_exit();
984263bc
MD
1696
1697 if (softc->flags & CD_FLAG_CHANGER)
1698 cdchangerschedule(softc);
1699
1700 devstat_end_transaction_buf(&softc->device_stats, bp);
81b5c339 1701 biodone(bio);
984263bc
MD
1702 break;
1703 }
1704 case CD_CCB_PROBE:
1705 {
1706 struct scsi_read_capacity_data *rdcap;
1707 char announce_buf[120]; /*
1708 * Currently (9/30/97) the
1709 * longest possible announce
1710 * buffer is 108 bytes, for the
1711 * first error case below.
1712 * That is 39 bytes for the
1713 * basic string, 16 bytes for the
1714 * biggest sense key (hardware
1715 * error), 52 bytes for the
1716 * text of the largest sense
1717 * qualifier valid for a CDROM,
1718 * (0x72, 0x03 or 0x04,
1719 * 0x03), and one byte for the
1720 * null terminating character.
1721 * To allow for longer strings,
1722 * the announce buffer is 120
1723 * bytes.
1724 */
1725 struct cd_params *cdp;
1726
1727 cdp = &softc->params;
1728
1729 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1730
1731 cdp->disksize = scsi_4btoul (rdcap->addr) + 1;
1732 cdp->blksize = scsi_4btoul (rdcap->length);
1733
1734 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1735
1736 snprintf(announce_buf, sizeof(announce_buf),
1737 "cd present [%lu x %lu byte records]",
1738 cdp->disksize, (u_long)cdp->blksize);
1739
1740 } else {
1741 int error;
1742 /*
1743 * Retry any UNIT ATTENTION type errors. They
1744 * are expected at boot.
1745 */
1746 error = cderror(done_ccb, 0, SF_RETRY_UA |
1747 SF_NO_PRINT | SF_RETRY_SELTO);
1748 if (error == ERESTART) {
1749 /*
1750 * A retry was scheuled, so
1751 * just return.
1752 */
1753 return;
1754 } else if (error != 0) {
1755
1756 struct scsi_sense_data *sense;
1757 int asc, ascq;
1758 int sense_key, error_code;
1759 int have_sense;
1760 cam_status status;
1761 struct ccb_getdev cgd;
1762
1763 /* Don't wedge this device's queue */
1764 cam_release_devq(done_ccb->ccb_h.path,
1765 /*relsim_flags*/0,
1766 /*reduction*/0,
1767 /*timeout*/0,
1768 /*getcount_only*/0);
1769
1770 status = done_ccb->ccb_h.status;
1771
1772 xpt_setup_ccb(&cgd.ccb_h,
1773 done_ccb->ccb_h.path,
1774 /* priority */ 1);
1775 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1776 xpt_action((union ccb *)&cgd);
1777
1778 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1779 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1780 || ((status & CAM_AUTOSNS_VALID) == 0))
1781 have_sense = FALSE;
1782 else
1783 have_sense = TRUE;
1784
1785 if (have_sense) {
1786 sense = &csio->sense_data;
1787 scsi_extract_sense(sense, &error_code,
1788 &sense_key,
1789 &asc, &ascq);
1790 }
1791 /*
1792 * Attach to anything that claims to be a
1793 * CDROM or WORM device, as long as it
1794 * doesn't return a "Logical unit not
1795 * supported" (0x25) error.
1796 */
1797 if ((have_sense) && (asc != 0x25)
1798 && (error_code == SSD_CURRENT_ERROR))
1799 snprintf(announce_buf,
1800 sizeof(announce_buf),
1801 "Attempt to query device "
1802 "size failed: %s, %s",
1803 scsi_sense_key_text[sense_key],
1804 scsi_sense_desc(asc,ascq,
1805 &cgd.inq_data));
1806 else if ((have_sense == 0)
1807 && ((status & CAM_STATUS_MASK) ==
1808 CAM_SCSI_STATUS_ERROR)
1809 && (csio->scsi_status ==
1810 SCSI_STATUS_BUSY)) {
1811 snprintf(announce_buf,
1812 sizeof(announce_buf),
1813 "Attempt to query device "
1814 "size failed: SCSI status: BUSY");
1815 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) {
1816 /*
1817 * We only print out an error for
1818 * CDROM type devices. For WORM
1819 * devices, we don't print out an
1820 * error since a few WORM devices
1821 * don't support CDROM commands.
1822 * If we have sense information, go
1823 * ahead and print it out.
1824 * Otherwise, just say that we
1825 * couldn't attach.
1826 */
1827
1828 /*
1829 * Just print out the error, not
1830 * the full probe message, when we
1831 * don't attach.
1832 */
1833 if (have_sense)
1834 scsi_sense_print(
1835 &done_ccb->csio);
1836 else {
1837 xpt_print_path(periph->path);
1838 printf("got CAM status %#x\n",
1839 done_ccb->ccb_h.status);
1840 }
1841 xpt_print_path(periph->path);
1842 printf("fatal error, failed"
1843 " to attach to device\n");
1844
1845 /*
1846 * Invalidate this peripheral.
1847 */
1848 cam_periph_invalidate(periph);
1849
1850 announce_buf[0] = '\0';
1851 } else {
1852
1853 /*
1854 * Invalidate this peripheral.
1855 */
1856 cam_periph_invalidate(periph);
1857 announce_buf[0] = '\0';
1858 }
1859 }
1860 }
1861 free(rdcap, M_TEMP);
1862 if (announce_buf[0] != '\0') {
1863 xpt_announce_periph(periph, announce_buf);
1864 if (softc->flags & CD_FLAG_CHANGER)
1865 cdchangerschedule(softc);
62ade751
MD
1866 /*
1867 * Create our sysctl variables, now that we know
1868 * we have successfully attached.
1869 */
b3504e03
JH
1870 taskqueue_enqueue(taskqueue_thread[mycpuid],
1871 &softc->sysctl_task);
984263bc
MD
1872 }
1873 softc->state = CD_STATE_NORMAL;
1874 /*
1875 * Since our peripheral may be invalidated by an error
1876 * above or an external event, we must release our CCB
1877 * before releasing the probe lock on the peripheral.
1878 * The peripheral will only go away once the last lock
1879 * is removed, and we need it around for the CCB release
1880 * operation.
1881 */
1882 xpt_release_ccb(done_ccb);
1883 cam_periph_unlock(periph);
1884 return;
1885 }
1886 case CD_CCB_WAITING:
1887 {
1888 /* Caller will release the CCB */
1889 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1890 ("trying to wakeup ccbwait\n"));
1891
1892 wakeup(&done_ccb->ccb_h.cbfcnp);
1893 return;
1894 }
1895 default:
1896 break;
1897 }
1898 xpt_release_ccb(done_ccb);
1899}
1900
62ade751
MD
1901static union cd_pages *
1902cdgetpage(struct cd_mode_params *mode_params)
1903{
1904 union cd_pages *page;
1905
1906 if (mode_params->cdb_size == 10)
1907 page = (union cd_pages *)find_mode_page_10(
1908 (struct scsi_mode_header_10 *)mode_params->mode_buf);
1909 else
1910 page = (union cd_pages *)find_mode_page_6(
1911 (struct scsi_mode_header_6 *)mode_params->mode_buf);
1912
1913 return (page);
1914}
1915
1916static int
1917cdgetpagesize(int page_num)
1918{
1919 int i;
1920
1921 for (i = 0; i < (sizeof(cd_page_size_table)/
1922 sizeof(cd_page_size_table[0])); i++) {
1923 if (cd_page_size_table[i].page == page_num)
1924 return (cd_page_size_table[i].page_size);
1925 }
1926 return (-1);
1927}
1928
984263bc 1929static int
41c20dac 1930cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
984263bc
MD
1931{
1932
1933 struct cam_periph *periph;
1934 struct cd_softc *softc;
1935 int error, unit;
1936
1937 unit = dkunit(dev);
1938
1939 periph = cam_extend_get(cdperiphs, unit);
1940 if (periph == NULL)
1941 return(ENXIO);
1942
1943 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n"));
1944
1945 softc = (struct cd_softc *)periph->softc;
1946
1947 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1948 ("trying to do ioctl %#lx\n", cmd));
1949
377d4740 1950 error = cam_periph_lock(periph, PCATCH);
984263bc
MD
1951
1952 if (error != 0)
1953 return(error);
1954
62ade751
MD
1955 /*
1956 * If we don't have media loaded, check for it. If still don't
1957 * have media loaded, we can only do a load or eject.
1958 */
1959 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
1960 && ((cmd != CDIOCCLOSE)
1961 && (cmd != CDIOCEJECT))) {
1962 error = cdcheckmedia(periph);
1963 if (error != 0) {
1964 cam_periph_unlock(periph);
1965 return (error);
1966 }
1967 }
1968
984263bc
MD
1969 switch (cmd) {
1970
1971 case CDIOCPLAYTRACKS:
1972 {
1973 struct ioc_play_track *args
1974 = (struct ioc_play_track *) addr;
62ade751
MD
1975 struct cd_mode_params params;
1976 union cd_pages *page;
984263bc 1977
62ade751
MD
1978 params.alloc_len = sizeof(union cd_mode_data_6_10);
1979 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 1980 M_WAITOK | M_ZERO);
984263bc
MD
1981
1982 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1983 ("trying to do CDIOCPLAYTRACKS\n"));
1984
62ade751 1985 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 1986 if (error) {
62ade751 1987 free(params.mode_buf, M_TEMP);
984263bc
MD
1988 break;
1989 }
62ade751
MD
1990 page = cdgetpage(&params);
1991
1992 page->audio.flags &= ~CD_PA_SOTC;
1993 page->audio.flags |= CD_PA_IMMED;
1994 error = cdsetmode(periph, &params);
1995 free(params.mode_buf, M_TEMP);
984263bc
MD
1996 if (error)
1997 break;
62ade751
MD
1998
1999 /*
2000 * This was originally implemented with the PLAY
2001 * AUDIO TRACK INDEX command, but that command was
2002 * deprecated after SCSI-2. Most (all?) SCSI CDROM
2003 * drives support it but ATAPI and ATAPI-derivative
2004 * drives don't seem to support it. So we keep a
2005 * cache of the table of contents and translate
2006 * track numbers to MSF format.
2007 */
2008 if (softc->flags & CD_FLAG_VALID_TOC) {
2009 union msf_lba *sentry, *eentry;
2010 int st, et;
2011
2012 if (args->end_track <
2013 softc->toc.header.ending_track + 1)
2014 args->end_track++;
2015 if (args->end_track >
2016 softc->toc.header.ending_track + 1)
2017 args->end_track =
2018 softc->toc.header.ending_track + 1;
2019 st = args->start_track -
2020 softc->toc.header.starting_track;
2021 et = args->end_track -
2022 softc->toc.header.starting_track;
2023 if ((st < 0)
2024 || (et < 0)
2025 || (st > (softc->toc.header.ending_track -
2026 softc->toc.header.starting_track))) {
2027 error = EINVAL;
2028 break;
2029 }
2030 sentry = &softc->toc.entries[st].addr;
2031 eentry = &softc->toc.entries[et].addr;
2032 error = cdplaymsf(periph,
2033 sentry->msf.minute,
2034 sentry->msf.second,
2035 sentry->msf.frame,
2036 eentry->msf.minute,
2037 eentry->msf.second,
2038 eentry->msf.frame);
2039 } else {
2040 /*
2041 * If we don't have a valid TOC, try the
2042 * play track index command. It is part of
2043 * the SCSI-2 spec, but was removed in the
2044 * MMC specs. ATAPI and ATAPI-derived
2045 * drives don't support it.
2046 */
2047 if (softc->quirks & CD_Q_BCD_TRACKS) {
2048 args->start_track =
2049 bin2bcd(args->start_track);
2050 args->end_track =
2051 bin2bcd(args->end_track);
2052 }
2053 error = cdplaytracks(periph,
2054 args->start_track,
2055 args->start_index,
2056 args->end_track,
2057 args->end_index);
984263bc 2058 }
984263bc
MD
2059 }
2060 break;
2061 case CDIOCPLAYMSF:
2062 {
2063 struct ioc_play_msf *args
2064 = (struct ioc_play_msf *) addr;
62ade751
MD
2065 struct cd_mode_params params;
2066 union cd_pages *page;
984263bc 2067
62ade751
MD
2068 params.alloc_len = sizeof(union cd_mode_data_6_10);
2069 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2070 M_WAITOK | M_ZERO);
984263bc
MD
2071
2072 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2073 ("trying to do CDIOCPLAYMSF\n"));
2074
62ade751 2075 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2076 if (error) {
62ade751 2077 free(params.mode_buf, M_TEMP);
984263bc
MD
2078 break;
2079 }
62ade751
MD
2080 page = cdgetpage(&params);
2081
2082 page->audio.flags &= ~CD_PA_SOTC;
2083 page->audio.flags |= CD_PA_IMMED;
2084 error = cdsetmode(periph, &params);
2085 free(params.mode_buf, M_TEMP);
984263bc
MD
2086 if (error)
2087 break;
2088 error = cdplaymsf(periph,
2089 args->start_m,
2090 args->start_s,
2091 args->start_f,
2092 args->end_m,
2093 args->end_s,
2094 args->end_f);
2095 }
2096 break;
2097 case CDIOCPLAYBLOCKS:
2098 {
2099 struct ioc_play_blocks *args
2100 = (struct ioc_play_blocks *) addr;
62ade751
MD
2101 struct cd_mode_params params;
2102 union cd_pages *page;
984263bc
MD
2103
2104 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2105 ("trying to do CDIOCPLAYBLOCKS\n"));
2106
62ade751
MD
2107 params.alloc_len = sizeof(union cd_mode_data_6_10);
2108 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2109 M_WAITOK | M_ZERO);
984263bc 2110
62ade751 2111 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2112 if (error) {
62ade751 2113 free(params.mode_buf, M_TEMP);
984263bc
MD
2114 break;
2115 }
62ade751
MD
2116 page = cdgetpage(&params);
2117
2118 page->audio.flags &= ~CD_PA_SOTC;
2119 page->audio.flags |= CD_PA_IMMED;
2120 error = cdsetmode(periph, &params);
2121 free(params.mode_buf, M_TEMP);
984263bc
MD
2122 if (error)
2123 break;
2124 error = cdplay(periph, args->blk, args->len);
2125 }
2126 break;
2127 case CDIOCREADSUBCHANNEL:
2128 {
2129 struct ioc_read_subchannel *args
2130 = (struct ioc_read_subchannel *) addr;
2131 struct cd_sub_channel_info *data;
2132 u_int32_t len = args->data_len;
2133
2134 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2135 ("trying to do CDIOCREADSUBCHANNEL\n"));
2136
2137 data = malloc(sizeof(struct cd_sub_channel_info),
ad86f6b6 2138 M_TEMP, M_WAITOK);
984263bc
MD
2139
2140 if ((len > sizeof(struct cd_sub_channel_info)) ||
2141 (len < sizeof(struct cd_sub_channel_header))) {
2142 printf(
2143 "scsi_cd: cdioctl: "
2144 "cdioreadsubchannel: error, len=%d\n",
2145 len);
2146 error = EINVAL;
2147 free(data, M_TEMP);
2148 break;
2149 }
2150
2151 if (softc->quirks & CD_Q_BCD_TRACKS)
2152 args->track = bin2bcd(args->track);
2153
2154 error = cdreadsubchannel(periph, args->address_format,
2155 args->data_format, args->track, data, len);
2156
2157 if (error) {
2158 free(data, M_TEMP);
2159 break;
2160 }
2161 if (softc->quirks & CD_Q_BCD_TRACKS)
2162 data->what.track_info.track_number =
2163 bcd2bin(data->what.track_info.track_number);
2164 len = min(len, ((data->header.data_len[0] << 8) +
2165 data->header.data_len[1] +
2166 sizeof(struct cd_sub_channel_header)));
2167 if (copyout(data, args->data, len) != 0) {
2168 error = EFAULT;
2169 }
2170 free(data, M_TEMP);
2171 }
2172 break;
2173
2174 case CDIOREADTOCHEADER:
2175 {
2176 struct ioc_toc_header *th;
2177
2178 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2179 ("trying to do CDIOREADTOCHEADER\n"));
2180
2181 th = malloc(sizeof(struct ioc_toc_header), M_TEMP,
ad86f6b6 2182 M_WAITOK);
62ade751
MD
2183 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2184 sizeof (*th), /*sense_flags*/0);
984263bc
MD
2185 if (error) {
2186 free(th, M_TEMP);
2187 break;
2188 }
2189 if (softc->quirks & CD_Q_BCD_TRACKS) {
2190 /* we are going to have to convert the BCD
2191 * encoding on the cd to what is expected
2192 */
2193 th->starting_track =
2194 bcd2bin(th->starting_track);
2195 th->ending_track = bcd2bin(th->ending_track);
2196 }
3c81cebc 2197 th->len = ntohs(th->len);
984263bc
MD
2198 bcopy(th, addr, sizeof(*th));
2199 free(th, M_TEMP);
2200 }
2201 break;
2202 case CDIOREADTOCENTRYS:
2203 {
62ade751
MD
2204 struct cd_tocdata *data;
2205 struct cd_toc_single *lead;
984263bc
MD
2206 struct ioc_read_toc_entry *te =
2207 (struct ioc_read_toc_entry *) addr;
2208 struct ioc_toc_header *th;
2209 u_int32_t len, readlen, idx, num;
2210 u_int32_t starting_track = te->starting_track;
2211
2212 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2213 ("trying to do CDIOREADTOCENTRYS\n"));
2214
ad86f6b6
MD
2215 data = malloc(sizeof(*data), M_TEMP, M_WAITOK);
2216 lead = malloc(sizeof(*lead), M_TEMP, M_WAITOK);
984263bc
MD
2217
2218 if (te->data_len < sizeof(struct cd_toc_entry)
2219 || (te->data_len % sizeof(struct cd_toc_entry)) != 0
2220 || (te->address_format != CD_MSF_FORMAT
2221 && te->address_format != CD_LBA_FORMAT)) {
2222 error = EINVAL;
2223 printf("scsi_cd: error in readtocentries, "
2224 "returning EINVAL\n");
2225 free(data, M_TEMP);
2226 free(lead, M_TEMP);
2227 break;
2228 }
2229
2230 th = &data->header;
62ade751
MD
2231 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2232 sizeof (*th), /*sense_flags*/0);
984263bc
MD
2233 if (error) {
2234 free(data, M_TEMP);
2235 free(lead, M_TEMP);
2236 break;
2237 }
2238
2239 if (softc->quirks & CD_Q_BCD_TRACKS) {
2240 /* we are going to have to convert the BCD
2241 * encoding on the cd to what is expected
2242 */
2243 th->starting_track =
2244 bcd2bin(th->starting_track);
2245 th->ending_track = bcd2bin(th->ending_track);
2246 }
2247
2248 if (starting_track == 0)
2249 starting_track = th->starting_track;
2250 else if (starting_track == LEADOUT)
2251 starting_track = th->ending_track + 1;
2252 else if (starting_track < th->starting_track ||
2253 starting_track > th->ending_track + 1) {
2254 printf("scsi_cd: error in readtocentries, "
2255 "returning EINVAL\n");
2256 free(data, M_TEMP);
2257 free(lead, M_TEMP);
2258 error = EINVAL;
2259 break;
2260 }
2261
2262 /* calculate reading length without leadout entry */
2263 readlen = (th->ending_track - starting_track + 1) *
2264 sizeof(struct cd_toc_entry);
2265
2266 /* and with leadout entry */
2267 len = readlen + sizeof(struct cd_toc_entry);
2268 if (te->data_len < len) {
2269 len = te->data_len;
2270 if (readlen > len)
2271 readlen = len;
2272 }
2273 if (len > sizeof(data->entries)) {
2274 printf("scsi_cd: error in readtocentries, "
2275 "returning EINVAL\n");
2276 error = EINVAL;
2277 free(data, M_TEMP);
2278 free(lead, M_TEMP);
2279 break;
2280 }
2281 num = len / sizeof(struct cd_toc_entry);
2282
2283 if (readlen > 0) {
2284 error = cdreadtoc(periph, te->address_format,
2285 starting_track,
62ade751
MD
2286 (u_int8_t *)data,
2287 readlen + sizeof (*th),
2288 /*sense_flags*/0);
984263bc
MD
2289 if (error) {
2290 free(data, M_TEMP);
2291 free(lead, M_TEMP);
2292 break;
2293 }
2294 }
2295
2296 /* make leadout entry if needed */
2297 idx = starting_track + num - 1;
2298 if (softc->quirks & CD_Q_BCD_TRACKS)
2299 th->ending_track = bcd2bin(th->ending_track);
2300 if (idx == th->ending_track + 1) {
2301 error = cdreadtoc(periph, te->address_format,
62ade751
MD
2302 LEADOUT, (u_int8_t *)lead,
2303 sizeof(*lead),
2304 /*sense_flags*/0);
984263bc
MD
2305 if (error) {
2306 free(data, M_TEMP);
2307 free(lead, M_TEMP);
2308 break;
2309 }
2310 data->entries[idx - starting_track] =
2311 lead->entry;
2312 }
2313 if (softc->quirks & CD_Q_BCD_TRACKS) {
2314 for (idx = 0; idx < num - 1; idx++) {
2315 data->entries[idx].track =
2316 bcd2bin(data->entries[idx].track);
2317 }
2318 }
2319
2320 error = copyout(data->entries, te->data, len);
2321 free(data, M_TEMP);
2322 free(lead, M_TEMP);
2323 }
2324 break;
2325 case CDIOREADTOCENTRY:
2326 {
62ade751 2327 struct cd_toc_single *data;
984263bc
MD
2328 struct ioc_read_toc_single_entry *te =
2329 (struct ioc_read_toc_single_entry *) addr;
2330 struct ioc_toc_header *th;
2331 u_int32_t track;
2332
2333 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2334 ("trying to do CDIOREADTOCENTRY\n"));
2335
ad86f6b6 2336 data = malloc(sizeof(*data), M_TEMP, M_WAITOK);
984263bc
MD
2337
2338 if (te->address_format != CD_MSF_FORMAT
2339 && te->address_format != CD_LBA_FORMAT) {
2340 printf("error in readtocentry, "
2341 " returning EINVAL\n");
2342 free(data, M_TEMP);
2343 error = EINVAL;
2344 break;
2345 }
2346
2347 th = &data->header;
62ade751
MD
2348 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2349 sizeof (*th), /*sense_flags*/0);
984263bc
MD
2350 if (error) {
2351 free(data, M_TEMP);
2352 break;
2353 }
2354
2355 if (softc->quirks & CD_Q_BCD_TRACKS) {
2356 /* we are going to have to convert the BCD
2357 * encoding on the cd to what is expected
2358 */
2359 th->starting_track =
2360 bcd2bin(th->starting_track);
2361 th->ending_track = bcd2bin(th->ending_track);
2362 }
2363 track = te->track;
2364 if (track == 0)
2365 track = th->starting_track;
2366 else if (track == LEADOUT)
2367 /* OK */;
2368 else if (track < th->starting_track ||
2369 track > th->ending_track + 1) {
2370 printf("error in readtocentry, "
2371 " returning EINVAL\n");
2372 free(data, M_TEMP);
2373 error = EINVAL;
2374 break;
2375 }
2376
2377 error = cdreadtoc(periph, te->address_format, track,
62ade751
MD
2378 (u_int8_t *)data, sizeof(*data),
2379 /*sense_flags*/0);
984263bc
MD
2380 if (error) {
2381 free(data, M_TEMP);
2382 break;
2383 }
2384
2385 if (softc->quirks & CD_Q_BCD_TRACKS)
2386 data->entry.track = bcd2bin(data->entry.track);
2387 bcopy(&data->entry, &te->entry,
2388 sizeof(struct cd_toc_entry));
2389 free(data, M_TEMP);
2390 }
2391 break;
2392 case CDIOCSETPATCH:
2393 {
62ade751
MD
2394 struct ioc_patch *arg = (struct ioc_patch *)addr;
2395 struct cd_mode_params params;
2396 union cd_pages *page;
984263bc
MD
2397
2398 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2399 ("trying to do CDIOCSETPATCH\n"));
2400
62ade751
MD
2401 params.alloc_len = sizeof(union cd_mode_data_6_10);
2402 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2403 M_WAITOK | M_ZERO);
62ade751 2404 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2405 if (error) {
62ade751 2406 free(params.mode_buf, M_TEMP);
984263bc
MD
2407 break;
2408 }
62ade751
MD
2409 page = cdgetpage(&params);
2410
2411 page->audio.port[LEFT_PORT].channels =
984263bc 2412 arg->patch[0];
62ade751 2413 page->audio.port[RIGHT_PORT].channels =
984263bc 2414 arg->patch[1];
62ade751
MD
2415 page->audio.port[2].channels = arg->patch[2];
2416 page->audio.port[3].channels = arg->patch[3];
2417 error = cdsetmode(periph, &params);
2418 free(params.mode_buf, M_TEMP);
984263bc
MD
2419 }
2420 break;
2421 case CDIOCGETVOL:
2422 {
2423 struct ioc_vol *arg = (struct ioc_vol *) addr;
62ade751
MD
2424 struct cd_mode_params params;
2425 union cd_pages *page;
984263bc
MD
2426
2427 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2428 ("trying to do CDIOCGETVOL\n"));
2429
62ade751
MD
2430 params.alloc_len = sizeof(union cd_mode_data_6_10);
2431 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2432 M_WAITOK | M_ZERO);
62ade751 2433 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2434 if (error) {
62ade751 2435 free(params.mode_buf, M_TEMP);
984263bc
MD
2436 break;
2437 }
62ade751
MD
2438 page = cdgetpage(&params);
2439
984263bc 2440 arg->vol[LEFT_PORT] =
62ade751 2441 page->audio.port[LEFT_PORT].volume;
984263bc 2442 arg->vol[RIGHT_PORT] =
62ade751
MD
2443 page->audio.port[RIGHT_PORT].volume;
2444 arg->vol[2] = page->audio.port[2].volume;
2445 arg->vol[3] = page->audio.port[3].volume;
2446 free(params.mode_buf, M_TEMP);
984263bc
MD
2447 }
2448 break;
2449 case CDIOCSETVOL:
2450 {
2451 struct ioc_vol *arg = (struct ioc_vol *) addr;
62ade751
MD
2452 struct cd_mode_params params;
2453 union cd_pages *page;
984263bc
MD
2454
2455 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2456 ("trying to do CDIOCSETVOL\n"));
2457
62ade751
MD
2458 params.alloc_len = sizeof(union cd_mode_data_6_10);
2459 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2460 M_WAITOK | M_ZERO);
62ade751 2461 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2462 if (error) {
62ade751 2463 free(params.mode_buf, M_TEMP);
984263bc
MD
2464 break;
2465 }
62ade751
MD
2466 page = cdgetpage(&params);
2467
2468 page->audio.port[LEFT_PORT].channels = CHANNEL_0;
2469 page->audio.port[LEFT_PORT].volume =
984263bc 2470 arg->vol[LEFT_PORT];
62ade751
MD
2471 page->audio.port[RIGHT_PORT].channels = CHANNEL_1;
2472 page->audio.port[RIGHT_PORT].volume =
984263bc 2473 arg->vol[RIGHT_PORT];
62ade751
MD
2474 page->audio.port[2].volume = arg->vol[2];
2475 page->audio.port[3].volume = arg->vol[3];
2476 error = cdsetmode(periph, &params);
2477 free(params.mode_buf, M_TEMP);
984263bc
MD
2478 }
2479 break;
2480 case CDIOCSETMONO:
2481 {
62ade751
MD
2482 struct cd_mode_params params;
2483 union cd_pages *page;
984263bc
MD
2484
2485 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2486 ("trying to do CDIOCSETMONO\n"));
2487
62ade751
MD
2488 params.alloc_len = sizeof(union cd_mode_data_6_10);
2489 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2490 M_WAITOK | M_ZERO);
62ade751 2491 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2492 if (error) {
62ade751 2493 free(params.mode_buf, M_TEMP);
984263bc
MD
2494 break;
2495 }
62ade751
MD
2496 page = cdgetpage(&params);
2497
2498 page->audio.port[LEFT_PORT].channels =
984263bc 2499 LEFT_CHANNEL | RIGHT_CHANNEL;
62ade751 2500 page->audio.port[RIGHT_PORT].channels =
984263bc 2501 LEFT_CHANNEL | RIGHT_CHANNEL;
62ade751
MD
2502 page->audio.port[2].channels = 0;
2503 page->audio.port[3].channels = 0;
2504 error = cdsetmode(periph, &params);
2505 free(params.mode_buf, M_TEMP);
984263bc
MD
2506 }
2507 break;
2508 case CDIOCSETSTEREO:
2509 {
62ade751
MD
2510 struct cd_mode_params params;
2511 union cd_pages *page;
984263bc
MD
2512
2513 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2514 ("trying to do CDIOCSETSTEREO\n"));
2515
62ade751
MD
2516 params.alloc_len = sizeof(union cd_mode_data_6_10);
2517 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2518 M_WAITOK | M_ZERO);
62ade751 2519 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2520 if (error) {
62ade751 2521 free(params.mode_buf, M_TEMP);
984263bc
MD
2522 break;
2523 }
62ade751
MD
2524 page = cdgetpage(&params);
2525
2526 page->audio.port[LEFT_PORT].channels =
984263bc 2527 LEFT_CHANNEL;
62ade751 2528 page->audio.port[RIGHT_PORT].channels =
984263bc 2529 RIGHT_CHANNEL;
62ade751
MD
2530 page->audio.port[2].channels = 0;
2531 page->audio.port[3].channels = 0;
2532 error = cdsetmode(periph, &params);
2533 free(params.mode_buf, M_TEMP);
984263bc
MD
2534 }
2535 break;
2536 case CDIOCSETMUTE:
2537 {
62ade751
MD
2538 struct cd_mode_params params;
2539 union cd_pages *page;
984263bc
MD
2540
2541 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2542 ("trying to do CDIOCSETMUTE\n"));
2543
62ade751
MD
2544 params.alloc_len = sizeof(union cd_mode_data_6_10);
2545 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2546 M_WAITOK | M_ZERO);
62ade751 2547 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2548 if (error) {
62ade751 2549 free(&params, M_TEMP);
984263bc
MD
2550 break;
2551 }
62ade751
MD
2552 page = cdgetpage(&params);
2553
2554 page->audio.port[LEFT_PORT].channels = 0;
2555 page->audio.port[RIGHT_PORT].channels = 0;
2556 page->audio.port[2].channels = 0;
2557 page->audio.port[3].channels = 0;
2558 error = cdsetmode(periph, &params);
2559 free(params.mode_buf, M_TEMP);
984263bc
MD
2560 }
2561 break;
2562 case CDIOCSETLEFT:
2563 {
62ade751
MD
2564 struct cd_mode_params params;
2565 union cd_pages *page;
984263bc
MD
2566
2567 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2568 ("trying to do CDIOCSETLEFT\n"));
2569
62ade751
MD
2570 params.alloc_len = sizeof(union cd_mode_data_6_10);
2571 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2572 M_WAITOK | M_ZERO);
62ade751
MD
2573
2574 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2575 if (error) {
62ade751 2576 free(params.mode_buf, M_TEMP);
984263bc
MD
2577 break;
2578 }
62ade751
MD
2579 page = cdgetpage(&params);
2580
2581 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL;
2582 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL;
2583 page->audio.port[2].channels = 0;
2584 page->audio.port[3].channels = 0;
2585 error = cdsetmode(periph, &params);
2586 free(params.mode_buf, M_TEMP);
984263bc
MD
2587 }
2588 break;
2589 case CDIOCSETRIGHT:
2590 {
62ade751
MD
2591 struct cd_mode_params params;
2592 union cd_pages *page;
984263bc
MD
2593
2594 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2595 ("trying to do CDIOCSETRIGHT\n"));
2596
62ade751
MD
2597 params.alloc_len = sizeof(union cd_mode_data_6_10);
2598 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2599 M_WAITOK | M_ZERO);
62ade751
MD
2600
2601 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2602 if (error) {
62ade751 2603 free(params.mode_buf, M_TEMP);
984263bc
MD
2604 break;
2605 }
62ade751
MD
2606 page = cdgetpage(&params);
2607
2608 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL;
2609 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL;
2610 page->audio.port[2].channels = 0;
2611 page->audio.port[3].channels = 0;
2612 error = cdsetmode(periph, &params);
2613 free(params.mode_buf, M_TEMP);
984263bc
MD
2614 }
2615 break;
2616 case CDIOCRESUME:
2617 error = cdpause(periph, 1);
2618 break;
2619 case CDIOCPAUSE:
2620 error = cdpause(periph, 0);
2621 break;
2622 case CDIOCSTART:
62ade751
MD
2623 error = cdstartunit(periph, 0);
2624 break;
2625 case CDIOCCLOSE:
2626 error = cdstartunit(periph, 1);
2627
2628#ifdef notyet
2629 if (error != 0)
2630 break;
2631
2632 /*
2633 * The user successfully closed the tray, run
2634 * cdcheckmedia() again so we can re-sync the disklabel
2635 * information.
2636 */
2637 cdcheckmedia(periph);
2638#endif /* notyet */
984263bc
MD
2639 break;
2640 case CDIOCSTOP:
2641 error = cdstopunit(periph, 0);
2642 break;
2643 case CDIOCEJECT:
2644 error = cdstopunit(periph, 1);
62ade751
MD
2645
2646#ifdef notyet
2647 if (error != 0)
2648 break;
2649
2650 /*
2651 * Since we've successfully ejected the media, run
2652 * cdcheckmedia() again so we re-sync the disklabel
2653 * information.
2654 */
2655 cdcheckmedia(periph);
2656#endif /* notyet */
984263bc
MD
2657 break;
2658 case CDIOCALLOW:
2659 cdprevent(periph, PR_ALLOW);
2660 break;
2661 case CDIOCPREVENT:
2662 cdprevent(periph, PR_PREVENT);
2663 break;
2664 case CDIOCSETDEBUG:
2665 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */
2666 error = ENOTTY;
2667 break;
2668 case CDIOCCLRDEBUG:
2669 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */
2670 error = ENOTTY;
2671 break;
2672 case CDIOCRESET:
2673 /* return (cd_reset(periph)); */
2674 error = ENOTTY;
2675 break;
2676 case CDRIOCREADSPEED:
2677 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED);
2678 break;
2679 case CDRIOCWRITESPEED:
2680 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr);
2681 break;
2682 case DVDIOCSENDKEY:
2683 case DVDIOCREPORTKEY: {
2684 struct dvd_authinfo *authinfo;
2685
2686 authinfo = (struct dvd_authinfo *)addr;
2687
2688 if (cmd == DVDIOCREPORTKEY)
2689 error = cdreportkey(periph, authinfo);
2690 else
2691 error = cdsendkey(periph, authinfo);
2692 break;
2693 }
2694 case DVDIOCREADSTRUCTURE: {
2695 struct dvd_struct *dvdstruct;
2696
2697 dvdstruct = (struct dvd_struct *)addr;
2698
2699 error = cdreaddvdstructure(periph, dvdstruct);
2700
2701 break;
2702 }
2703 default:
2704 error = cam_periph_ioctl(periph, cmd, addr, cderror);
2705 break;
2706 }
2707
2708 cam_periph_unlock(periph);
2709
2710 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n"));
2711
2712 return (error);
2713}
2714
2715static void
2716cdprevent(struct cam_periph *periph, int action)
2717{
2718 union ccb *ccb;
2719 struct cd_softc *softc;
2720 int error;
2721
2722 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n"));
2723
2724 softc = (struct cd_softc *)periph->softc;
2725
2726 if (((action == PR_ALLOW)
2727 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0)
2728 || ((action == PR_PREVENT)
2729 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) {
2730 return;
2731 }
2732
2733 ccb = cdgetccb(periph, /* priority */ 1);
2734
2735 scsi_prevent(&ccb->csio,
2736 /*retries*/ 1,
2737 cddone,
2738 MSG_SIMPLE_Q_TAG,
2739 action,
2740 SSD_FULL_SIZE,
2741 /* timeout */60000);
2742
2743 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
2744 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT|SF_RETRY_SELTO);
2745
2746 xpt_release_ccb(ccb);
2747
2748 if (error == 0) {
2749 if (action == PR_ALLOW)
2750 softc->flags &= ~CD_FLAG_DISC_LOCKED;
2751 else
2752 softc->flags |= CD_FLAG_DISC_LOCKED;
2753 }
2754}
2755
62ade751
MD
2756int
2757cdcheckmedia(struct cam_periph *periph)
2758{
2759 struct cd_softc *softc;
2760 struct ioc_toc_header *toch;
2761 struct cd_toc_single leadout;
2762 struct ccb_getdev cgd;
2763 u_int32_t size, toclen;
2764 int error, num_entries, cdindex;
2765 int first_track_audio;
2766 struct disklabel *label;
2767
2768 softc = (struct cd_softc *)periph->softc;
2769
2770 first_track_audio = -1;
2771 error = 0;
2772
2773 cdprevent(periph, PR_PREVENT);
2774
2775 /*
2776 * Build prototype label for whole disk.
2777 * Should take information about different data tracks from the
2778 * TOC and put it in the partition table.
2779 */
2780 label = &softc->disk.d_label;
2781 bzero(label, sizeof(*label));
2782 label->d_type = DTYPE_SCSI;
2783
2784 /*
2785 * Grab the inquiry data to get the vendor and product names.
2786 * Put them in the typename and packname for the label.
2787 */
2788 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1);
2789 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
2790 xpt_action((union ccb *)&cgd);
2791
2792 strncpy(label->d_typename, cgd.inq_data.vendor,
2793 min(SID_VENDOR_SIZE, sizeof(label->d_typename)));
2794 strncpy(label->d_packname, cgd.inq_data.product,
2795 min(SID_PRODUCT_SIZE, sizeof(label->d_packname)));
2796
2797 label->d_flags = D_REMOVABLE;
2798 /*
2799 * Make partition 'a' cover the whole disk. This is a temporary
2800 * compatibility hack. The 'a' partition should not exist, so
2801 * the slice code won't create it. The slice code will make
2802 * partition (RAW_PART + 'a') cover the whole disk and fill in
2803 * some more defaults.
2804 */
2805 label->d_partitions[0].p_size = label->d_secperunit;
2806 label->d_partitions[0].p_fstype = FS_OTHER;
2807
2808 /*
2809 * Default to not reading the disklabel off the disk, until we can
2810 * verify that we have media, that we have a table of contents, and
2811 * that the first track is a data track (which could theoretically
2812 * contain a disklabel).
2813 */
2814 softc->disk.d_dsflags &= ~DSO_COMPATLABEL;
2815 softc->disk.d_dsflags |= DSO_NOLABELS;
2816
2817 /*
2818 * Clear the valid media and TOC flags until we've verified that we
2819 * have both.
2820 */
2821 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
2822
2823 /*
2824 * Get the disc size and block size. If we can't get it, we don't
2825 * have media, most likely.
2826 */
2827 if ((error = cdsize(periph, &size)) != 0) {
2828 /*
2829 * Set a bogus sector size, so the slice code won't try to
2830 * divide by 0 and panic the kernel.
2831 */
2832 label->d_secsize = 2048;
2833
2834 label->d_secperunit = 0;
2835
2836 /*
2837 * XXX KDM is this a good idea? Seems to cause more
2838 * problems.
2839 */
2840 if (softc->flags & CD_FLAG_OPEN) {
2841 int force;
2842
2843 force = 1;
2844
2845 /*
2846 * We don't bother checking the return value here,
2847 * since we already have an error...
2848 */
e4c9c0c8 2849 dsioctl(softc->disk.d_cdev, DIOCSYNCSLICEINFO,
62ade751
MD
2850 /*data*/(caddr_t)&force, /*flags*/ 0,
2851 &softc->disk.d_slice);
2852 }
2853
2854 /*
2855 * Tell devstat(9) we don't have a blocksize.
2856 */
2857 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE;
2858
2859 cdprevent(periph, PR_ALLOW);
2860
2861 return (error);
2862 } else {
2863
2864 label->d_secsize = softc->params.blksize;
2865 label->d_secperunit = softc->params.disksize;
2866
2867 /*
2868 * Force a re-sync of slice information, like the blocksize,
2869 * now that we know it. It isn't pretty...but according to
2870 * Bruce Evans, this is probably the best way to do it in
2871 * -stable. We only do this if we're already open, and
2872 * therefore dsopen() has already run. If CD_FLAG_OPEN
2873 * isn't set, this isn't necessary.
2874 */
2875 if (softc->flags & CD_FLAG_OPEN) {
2876 int force;
2877
2878 force = 1;
2879
e4c9c0c8 2880 error = dsioctl(softc->disk.d_cdev, DIOCSYNCSLICEINFO,
62ade751
MD
2881 /*data*/(caddr_t)&force, /*flags*/ 0,
2882 &softc->disk.d_slice);
2883 if (error != 0) {
2884 /*
2885 * Set a bogus sector size, so the slice code
2886 * won't try to divide by 0 and panic the
2887 * kernel.
2888 */
2889 label->d_secsize = 2048;
2890
2891 label->d_secperunit = 0;
2892
2893 /*
2894 * Tell devstat(9) we don't have a blocksize.
2895 */
2896 softc->device_stats.flags |=
2897 DEVSTAT_BS_UNAVAILABLE;
2898
2899 cdprevent(periph, PR_ALLOW);
2900 }
2901 }
2902
2903 /*
2904 * We unconditionally (re)set the blocksize each time the
2905 * CD device is opened. This is because the CD can change,
2906 * and therefore the blocksize might change.
2907 * XXX problems here if some slice or partition is still
2908 * open with the old size?
2909 */
2910 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0)
2911 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE;
2912 softc->device_stats.block_size = softc->params.blksize;
2913
2914 softc->flags |= CD_FLAG_VALID_MEDIA;
2915 }
2916
2917 /*
2918 * Now we check the table of contents. This (currently) is only
2919 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do
2920 * things like present a separate entry in /dev for each track,
2921 * like that acd(4) driver does.
2922 */
2923 bzero(&softc->toc, sizeof(softc->toc));
2924 toch = &softc->toc.header;
2925
2926 /*
2927 * We will get errors here for media that doesn't have a table of
2928 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP
2929 * command is presented for a DDCD/CD-R/RW media, where the first TOC
2930 * has not been recorded (no complete session) and the Format codes
2931 * 0000b, 0001b, or 0010b are specified, this command shall be rejected
2932 * with an INVALID FIELD IN CDB. Devices that are not capable of
2933 * reading an incomplete session on DDC/CD-R/RW media shall report
2934 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
2935 *
2936 * So this isn't fatal if we can't read the table of contents, it
2937 * just means that the user won't be able to issue the play tracks
2938 * ioctl, and likely lots of other stuff won't work either. They
2939 * need to burn the CD before we can do a whole lot with it. So
2940 * we don't print anything here if we get an error back.
2941 */
2942 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch),
2943 SF_NO_PRINT);
2944 /*
2945 * Errors in reading the table of contents aren't fatal, we just
2946 * won't have a valid table of contents cached.
2947 */
2948 if (error != 0) {
2949 error = 0;
2950 bzero(&softc->toc, sizeof(softc->toc));
2951 goto bailout;
2952 }
2953
2954 if (softc->quirks & CD_Q_BCD_TRACKS) {
2955 toch->starting_track = bcd2bin(toch->starting_track);
2956 toch->ending_track = bcd2bin(toch->ending_track);
2957 }
2958
2959 /* Number of TOC entries, plus leadout */
2960 num_entries = (toch->ending_track - toch->starting_track) + 2;
2961
2962 if (num_entries <= 0)
2963 goto bailout;
2964
2965 toclen = num_entries * sizeof(struct cd_toc_entry);
2966
2967 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track,
2968 (u_int8_t *)&softc->toc, toclen + sizeof(*toch),
2969 SF_NO_PRINT);
2970 if (error != 0) {
2971 error = 0;
2972 bzero(&softc->toc, sizeof(softc->toc));
2973 goto bailout;
2974 }
2975
2976 if (softc->quirks & CD_Q_BCD_TRACKS) {
2977 toch->starting_track = bcd2bin(toch->starting_track);
2978 toch->ending_track = bcd2bin(toch->ending_track);
2979 }
2980 toch->len = scsi_2btoul((uint8_t *)&toch->len);
2981
2982 /*
2983 * XXX KDM is this necessary? Probably only if the drive doesn't
2984 * return leadout information with the table of contents.
2985 */
2986 cdindex = toch->starting_track + num_entries -1;
2987 if (cdindex == toch->ending_track + 1) {
2988
2989 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT,
2990 (u_int8_t *)&leadout, sizeof(leadout),
2991 SF_NO_PRINT);
2992 if (error != 0) {
2993 error = 0;
2994 goto bailout;
2995 }
2996 softc->toc.entries[cdindex - toch->starting_track] =
2997 leadout.entry;
2998 }
2999 if (softc->quirks & CD_Q_BCD_TRACKS) {
3000 for (cdindex = 0; cdindex < (num_entries - 1); cdindex++) {
3001 softc->toc.entries[cdindex].track =
3002 bcd2bin(softc->toc.entries[cdindex].track);
3003 }
3004 }
3005
3006 /*
3007 * Run through the TOC entries, find the first entry and determine
3008 * whether it is an audio or data track.
3009 */
3010 for (cdindex = 0; cdindex < (num_entries - 1); cdindex++) {
3011 if (softc->toc.entries[cdindex].track == toch->starting_track) {
3012 if (softc->toc.entries[cdindex].control & 0x04)
3013 first_track_audio = 0;
3014 else
3015 first_track_audio = 1;
3016 break;
3017 }
3018 }
3019
3020 /*
3021 * If first_track_audio is non-zero, we either have an error (e.g.
3022 * couldn't find the starting track) or the first track is an audio
3023 * track. If first_track_audio is 0, the first track is a data
3024 * track that could have a disklabel. Attempt to read the
3025 * disklabel off the media, just in case the user put one there.
3026 */
3027 if (first_track_audio == 0) {
3028 softc->disk.d_dsflags |= DSO_COMPATLABEL;
3029 softc->disk.d_dsflags &= ~DSO_NOLABELS;
3030 }
3031 softc->flags |= CD_FLAG_VALID_TOC;
3032
3033bailout:
3034 return (error);
3035}
3036
984263bc 3037static int
62ade751 3038cdsize(struct cam_periph *periph, u_int32_t *size)
984263bc 3039{
984263bc
MD
3040 struct cd_softc *softc;
3041 union ccb *ccb;
3042 struct scsi_read_capacity_data *rcap_buf;
3043 int error;
3044
984263bc
MD
3045 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n"));
3046
3047 softc = (struct cd_softc *)periph->softc;
3048
3049 ccb = cdgetccb(periph, /* priority */ 1);
3050
3051 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data),
898d961b 3052 M_TEMP, M_INTWAIT | M_ZERO);
984263bc
MD
3053
3054 scsi_read_capacity(&ccb->csio,
3055 /*retries*/ 1,
3056 cddone,
3057 MSG_SIMPLE_Q_TAG,
3058 rcap_buf,
3059 SSD_FULL_SIZE,
3060 /* timeout */20000);
3061
3062 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3063 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT|SF_RETRY_SELTO);
3064
3065 xpt_release_ccb(ccb);
3066
3067 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1;
3068 softc->params.blksize = scsi_4btoul(rcap_buf->length);
3069 /*
3070 * SCSI-3 mandates that the reported blocksize shall be 2048.
3071 * Older drives sometimes report funny values, trim it down to
3072 * 2048, or other parts of the kernel will get confused.
3073 *
3074 * XXX we leave drives alone that might report 512 bytes, as
3075 * well as drives reporting more weird sizes like perhaps 4K.
3076 */
3077 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352)
3078 softc->params.blksize = 2048;
3079
3080 free(rcap_buf, M_TEMP);
3081 *size = softc->params.disksize;
3082
3083 return (error);
3084
3085}
3086
984263bc 3087static int
62ade751 3088cd6byteworkaround(union ccb *ccb)
984263bc 3089{
62ade751
MD
3090 u_int8_t *cdb;
3091 struct cam_periph *periph;
984263bc 3092 struct cd_softc *softc;
62ade751
MD
3093 struct cd_mode_params *params;
3094 int frozen, found;
984263bc 3095
62ade751 3096 periph = xpt_path_periph(ccb->ccb_h.path);
984263bc
MD
3097 softc = (struct cd_softc *)periph->softc;
3098
62ade751 3099 cdb = ccb->csio.cdb_io.cdb_bytes;
984263bc 3100
62ade751
MD
3101 if ((ccb->ccb_h.flags & CAM_CDB_POINTER)
3102 || ((cdb[0] != MODE_SENSE_6)
3103 && (cdb[0] != MODE_SELECT_6)))
3104 return (0);
984263bc 3105
62ade751
MD
3106 /*
3107 * Because there is no convenient place to stash the overall
3108 * cd_mode_params structure pointer, we have to grab it like this.
3109 * This means that ALL MODE_SENSE and MODE_SELECT requests in the
3110 * cd(4) driver MUST go through cdgetmode() and cdsetmode()!
3111 *
3112 * XXX It would be nice if, at some point, we could increase the
3113 * number of available peripheral private pointers. Both pointers
3114 * are currently used in most every peripheral driver.
3115 */
3116 found = 0;
984263bc 3117
62ade751
MD
3118 STAILQ_FOREACH(params, &softc->mode_queue, links) {
3119 if (params->mode_buf == ccb->csio.data_ptr) {
3120 found = 1;
3121 break;
3122 }
984263bc 3123 }
984263bc 3124
62ade751
MD
3125 /*
3126 * This shouldn't happen. All mode sense and mode select
3127 * operations in the cd(4) driver MUST go through cdgetmode() and
3128 * cdsetmode()!
3129 */
3130 if (found == 0) {
3131 xpt_print_path(periph->path);
3132 printf("mode buffer not found in mode queue!\n");
3133 return (0);
3134 }
984263bc 3135
62ade751
MD
3136 params->cdb_size = 10;
3137 softc->minimum_command_size = 10;
3138 xpt_print_path(ccb->ccb_h.path);
3139 printf("%s(6) failed, increasing minimum CDB size to 10 bytes\n",
3140 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT");
3141
3142 if (cdb[0] == MODE_SENSE_6) {
3143 struct scsi_mode_sense_10 ms10;
3144 struct scsi_mode_sense_6 *ms6;
3145 int len;
3146
3147 ms6 = (struct scsi_mode_sense_6 *)cdb;
3148
3149 bzero(&ms10, sizeof(ms10));
3150 ms10.opcode = MODE_SENSE_10;
3151 ms10.byte2 = ms6->byte2;
3152 ms10.page = ms6->page;
3153
3154 /*
3155 * 10 byte mode header, block descriptor,
3156 * sizeof(union cd_pages)
3157 */
3158 len = sizeof(struct cd_mode_data_10);
3159 ccb->csio.dxfer_len = len;
3160
3161 scsi_ulto2b(len, ms10.length);
3162 ms10.control = ms6->control;
3163 bcopy(&ms10, cdb, 10);
3164 ccb->csio.cdb_len = 10;
3165 } else {
3166 struct scsi_mode_select_10 ms10;
3167 struct scsi_mode_select_6 *ms6;
3168 struct scsi_mode_header_6 *header6;
3169 struct scsi_mode_header_10 *header10;
3170 struct scsi_mode_page_header *page_header;
3171 int blk_desc_len, page_num, page_size, len;
3172
3173 ms6 = (struct scsi_mode_select_6 *)cdb;
3174
3175 bzero(&ms10, sizeof(ms10));
3176 ms10.opcode = MODE_SELECT_10;
3177 ms10.byte2 = ms6->byte2;
3178
3179 header6 = (struct scsi_mode_header_6 *)params->mode_buf;
3180 header10 = (struct scsi_mode_header_10 *)params->mode_buf;
3181
3182 page_header = find_mode_page_6(header6);
3183 page_num = page_header->page_code;
3184
3185 blk_desc_len = header6->blk_desc_len;
3186
3187 page_size = cdgetpagesize(page_num);
3188
3189 if (page_size != (page_header->page_length +
3190 sizeof(*page_header)))
3191 page_size = page_header->page_length +
3192 sizeof(*page_header);
3193
3194 len = sizeof(*header10) + blk_desc_len + page_size;
3195
3196 len = min(params->alloc_len, len);
3197
3198 /*
3199 * Since the 6 byte parameter header is shorter than the 10
3200 * byte parameter header, we need to copy the actual mode
3201 * page data, and the block descriptor, if any, so things wind
3202 * up in the right place. The regions will overlap, but
3203 * bcopy() does the right thing.
3204 */
3205 bcopy(params->mode_buf + sizeof(*header6),
3206 params->mode_buf + sizeof(*header10),
3207 len - sizeof(*header10));
3208
3209 /* Make sure these fields are set correctly. */
3210 scsi_ulto2b(0, header10->data_length);
3211 header10->medium_type = 0;
3212 scsi_ulto2b(blk_desc_len, header10->blk_desc_len);
3213
3214 ccb->csio.dxfer_len = len;
3215
3216 scsi_ulto2b(len, ms10.length);
3217 ms10.control = ms6->control;
3218 bcopy(&ms10, cdb, 10);
3219 ccb->csio.cdb_len = 10;
984263bc
MD
3220 }
3221
62ade751
MD
3222 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
3223 ccb->ccb_h.status = CAM_REQUEUE_REQ;
3224 xpt_action(ccb);
3225 if (frozen) {
3226 cam_release_devq(ccb->ccb_h.path,
3227 /*relsim_flags*/0,
3228 /*openings*/0,
3229 /*timeout*/0,
3230 /*getcount_only*/0);
3231 }
984263bc 3232
62ade751 3233 return (ERESTART);
984263bc
MD
3234}
3235
3236static int
3237cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3238{
3239 struct cd_softc *softc;
3240 struct cam_periph *periph;
62ade751 3241 int error;
984263bc
MD
3242
3243 periph = xpt_path_periph(ccb->ccb_h.path);
3244 softc = (struct cd_softc *)periph->softc;
3245
62ade751
MD
3246 error = 0;
3247
3248 /*
3249 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte
3250 * CDB comes back with this particular error, try transforming it
3251 * into the 10 byte version.
3252 */
3253 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3254 error = cd6byteworkaround(ccb);
3255 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
3256 CAM_SCSI_STATUS_ERROR)
3257 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
3258 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
3259 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
3260 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
3261 int sense_key, error_code, asc, ascq;
3262
3263 scsi_extract_sense(&ccb->csio.sense_data,
3264 &error_code, &sense_key, &asc, &ascq);
3265 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3266 error = cd6byteworkaround(ccb);
3267 }
3268
3269 if (error == ERESTART)
3270 return (error);
3271
984263bc
MD
3272 /*
3273 * XXX
3274 * Until we have a better way of doing pack validation,
3275 * don't treat UAs as errors.
3276 */
3277 sense_flags |= SF_RETRY_UA;
3278 return (cam_periph_error(ccb, cam_flags, sense_flags,
3279 &softc->saved_ccb));
3280}
3281
3282/*
3283 * Read table of contents
3284 */
3285static int
3286cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start,
62ade751 3287 u_int8_t *data, u_int32_t len, u_int32_t sense_flags)
984263bc
MD
3288{
3289 struct scsi_read_toc *scsi_cmd;
3290 u_int32_t ntoc;
3291 struct ccb_scsiio *csio;
3292 union ccb *ccb;
3293 int error;
3294
3295 ntoc = len;
3296 error = 0;
3297
3298 ccb = cdgetccb(periph, /* priority */ 1);
3299
3300 csio = &ccb->csio;
3301
3302 cam_fill_csio(csio,
3303 /* retries */ 1,
3304 /* cbfcnp */ cddone,
3305 /* flags */ CAM_DIR_IN,
3306 /* tag_action */ MSG_SIMPLE_Q_TAG,
62ade751 3307 /* data_ptr */ data,
984263bc
MD
3308 /* dxfer_len */ len,
3309 /* sense_len */ SSD_FULL_SIZE,
3310 sizeof(struct scsi_read_toc),
3311 /* timeout */ 50000);
3312
3313 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes;
3314 bzero (scsi_cmd, sizeof(*scsi_cmd));
3315
3316 if (mode == CD_MSF_FORMAT)
3317 scsi_cmd->byte2 |= CD_MSF;
3318 scsi_cmd->from_track = start;
3319 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */
3320 scsi_cmd->data_len[0] = (ntoc) >> 8;
3321 scsi_cmd->data_len[1] = (ntoc) & 0xff;
3322
3323 scsi_cmd->op_code = READ_TOC;
3324
3325 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
62ade751
MD
3326 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO |
3327 sense_flags);
984263bc
MD
3328
3329 xpt_release_ccb(ccb);
3330
3331 return(error);
3332}
3333
3334static int
3335cdreadsubchannel(struct cam_periph *periph, u_int32_t mode,
3336 u_int32_t format, int track,
3337 struct cd_sub_channel_info *data, u_int32_t len)
3338{
3339 struct scsi_read_subchannel *scsi_cmd;
3340 struct ccb_scsiio *csio;
3341 union ccb *ccb;
3342 int error;
3343
3344 error = 0;
3345
3346 ccb = cdgetccb(periph, /* priority */ 1);
3347
3348 csio = &ccb->csio;
3349
3350 cam_fill_csio(csio,
3351 /* retries */ 1,
3352 /* cbfcnp */ cddone,
3353 /* flags */ CAM_DIR_IN,
3354 /* tag_action */ MSG_SIMPLE_Q_TAG,
3355 /* data_ptr */ (u_int8_t *)data,
3356 /* dxfer_len */ len,
3357 /* sense_len */ SSD_FULL_SIZE,
3358 sizeof(struct scsi_read_subchannel),
3359 /* timeout */ 50000);
3360
3361 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes;
3362 bzero (scsi_cmd, sizeof(*scsi_cmd));
3363
3364 scsi_cmd->op_code = READ_SUBCHANNEL;
3365 if (mode == CD_MSF_FORMAT)
3366 scsi_cmd->byte1 |= CD_MSF;
3367 scsi_cmd->byte2 = SRS_SUBQ;
3368 scsi_cmd->subchan_format = format;
3369 scsi_cmd->track = track;
3370 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len);
3371 scsi_cmd->control = 0;
3372
3373 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3374 /*sense_flags*/SF_RETRY_UA|SF_RETRY_SELTO);
3375
3376 xpt_release_ccb(ccb);
3377
3378 return(error);
3379}
3380
62ade751
MD
3381/*
3382 * All MODE_SENSE requests in the cd(4) driver MUST go through this
3383 * routine. See comments in cd6byteworkaround() for details.
3384 */
984263bc 3385static int
62ade751
MD
3386cdgetmode(struct cam_periph *periph, struct cd_mode_params *data,
3387 u_int32_t page)
984263bc 3388{
62ade751
MD
3389 struct ccb_scsiio *csio;
3390 struct cd_softc *softc;
984263bc 3391 union ccb *ccb;
62ade751 3392 int param_len;
984263bc
MD
3393 int error;
3394
62ade751
MD
3395 softc = (struct cd_softc *)periph->softc;
3396
984263bc
MD
3397 ccb = cdgetccb(periph, /* priority */ 1);
3398
3399 csio = &ccb->csio;
3400
62ade751
MD
3401 data->cdb_size = softc->minimum_command_size;
3402 if (data->cdb_size < 10)
3403 param_len = sizeof(struct cd_mode_data);
3404 else
3405 param_len = sizeof(struct cd_mode_data_10);
3406
3407 /* Don't say we've got more room than we actually allocated */
3408 param_len = min(param_len, data->alloc_len);
3409
3410 scsi_mode_sense_len(csio,
3411 /* retries */ 1,
3412 /* cbfcnp */ cddone,
3413 /* tag_action */ MSG_SIMPLE_Q_TAG,
3414 /* dbd */ 0,
3415 /* page_code */ SMS_PAGE_CTRL_CURRENT,
3416 /* page */ page,
3417 /* param_buf */ data->mode_buf,
3418 /* param_len */ param_len,
3419 /* minimum_cmd_size */ softc->minimum_command_size,
3420 /* sense_len */ SSD_FULL_SIZE,
3421 /* timeout */ 50000);
984263bc 3422
62ade751
MD
3423 /*
3424 * It would be nice not to have to do this, but there's no
3425 * available pointer in the CCB that would allow us to stuff the
3426 * mode params structure in there and retrieve it in
3427 * cd6byteworkaround(), so we can set the cdb size. The cdb size
3428 * lets the caller know what CDB size we ended up using, so they
3429 * can find the actual mode page offset.
3430 */
3431 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
984263bc
MD
3432
3433 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3434 /*sense_flags*/SF_RETRY_UA|SF_RETRY_SELTO);
3435
3436 xpt_release_ccb(ccb);
3437
62ade751
MD
3438 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3439
3440 /*
3441 * This is a bit of belt-and-suspenders checking, but if we run
3442 * into a situation where the target sends back multiple block
3443 * descriptors, we might not have enough space in the buffer to
3444 * see the whole mode page. Better to return an error than
3445 * potentially access memory beyond our malloced region.
3446 */
3447 if (error == 0) {
3448 u_int32_t data_len;
3449
3450 if (data->cdb_size == 10) {
3451 struct scsi_mode_header_10 *hdr10;
3452
3453 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf;
3454 data_len = scsi_2btoul(hdr10->data_length);
3455 data_len += sizeof(hdr10->data_length);
3456 } else {
3457 struct scsi_mode_header_6 *hdr6;
3458
3459 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf;
3460 data_len = hdr6->data_length;
3461 data_len += sizeof(hdr6->data_length);
3462 }
3463
3464 /*
3465 * Complain if there is more mode data available than we
3466 * allocated space for. This could potentially happen if
3467 * we miscalculated the page length for some reason, if the
3468 * drive returns multiple block descriptors, or if it sets
3469 * the data length incorrectly.
3470 */
3471 if (data_len > data->alloc_len) {
3472 xpt_print_path(periph->path);
3473 printf("allocated modepage %d length %d < returned "
3474 "length %d\n", page, data->alloc_len, data_len);
3475
3476 error = ENOSPC;
3477 }
3478 }
3479 return (error);
984263bc
MD
3480}
3481
62ade751
MD
3482/*
3483 * All MODE_SELECT requests in the cd(4) driver MUST go through this
3484 * routine. See comments in cd6byteworkaround() for details.
3485 */
984263bc 3486static int
62ade751 3487cdsetmode(struct cam_periph *periph, struct cd_mode_params *data)
984263bc 3488{
62ade751
MD
3489 struct ccb_scsiio *csio;
3490 struct cd_softc *softc;
984263bc 3491 union ccb *ccb;
62ade751 3492 int cdb_size, param_len;
984263bc
MD
3493 int error;
3494
62ade751
MD
3495 softc = (struct cd_softc *)periph->softc;
3496
984263bc
MD
3497 ccb = cdgetccb(periph, /* priority */ 1);
3498
3499 csio = &ccb->csio;
3500
3501 error = 0;
3502
984263bc 3503 /*
62ade751
MD
3504 * If the data is formatted for the 10 byte version of the mode
3505 * select parameter list, we need to use the 10 byte CDB.
3506 * Otherwise, we use whatever the stored minimum command size.
984263bc 3507 */
62ade751
MD
3508 if (data->cdb_size == 10)
3509 cdb_size = data->cdb_size;
3510 else
3511 cdb_size = softc->minimum_command_size;
3512
3513 if (cdb_size >= 10) {
3514 struct scsi_mode_header_10 *mode_header;
3515 u_int32_t data_len;
3516
3517 mode_header = (struct scsi_mode_header_10 *)data->mode_buf;
3518
3519 data_len = scsi_2btoul(mode_header->data_length);
3520
3521 scsi_ulto2b(0, mode_header->data_length);
3522 /*
3523 * SONY drives do not allow a mode select with a medium_type
3524 * value that has just been returned by a mode sense; use a
3525 * medium_type of 0 (Default) instead.
3526 */
3527 mode_header->medium_type = 0;
3528
3529 /*
3530 * Pass back whatever the drive passed to us, plus the size
3531 * of the data length field.
3532 */
3533 param_len = data_len + sizeof(mode_header->data_length);
3534
3535 } else {
3536 struct scsi_mode_header_6 *mode_header;
3537
3538 mode_header = (struct scsi_mode_header_6 *)data->mode_buf;
3539
3540 param_len = mode_header->data_length + 1;
3541
3542 mode_header->data_length = 0;
3543 /*
3544 * SONY drives do not allow a mode select with a medium_type
3545 * value that has just been returned by a mode sense; use a
3546 * medium_type of 0 (Default) instead.
3547 */
3548 mode_header->medium_type = 0;
3549 }
3550
3551 /* Don't say we've got more room than we actually allocated */
3552 param_len = min(param_len, data->alloc_len);
3553
3554 scsi_mode_select_len(csio,
3555 /* retries */ 1,
3556 /* cbfcnp */ cddone,
3557 /* tag_action */ MSG_SIMPLE_Q_TAG,
3558 /* scsi_page_fmt */ 1,
3559 /* save_pages */ 0,
3560 /* param_buf */ data->mode_buf,
3561 /* param_len */ param_len,
3562 /* minimum_cmd_size */ cdb_size,
3563 /* sense_len */ SSD_FULL_SIZE,
3564 /* timeout */ 50000);
3565
3566 /* See comments in cdgetmode() and cd6byteworkaround(). */
3567 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
984263bc
MD
3568
3569 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3570 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3571
3572 xpt_release_ccb(ccb);
3573
62ade751
MD
3574 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3575
3576 return (error);
984263bc
MD
3577}
3578
62ade751 3579
984263bc
MD
3580
3581static int
3582cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len)
3583{
3584 struct ccb_scsiio *csio;
3585 union ccb *ccb;
3586 int error;
3587 u_int8_t cdb_len;
3588
3589 error = 0;
3590 ccb = cdgetccb(periph, /* priority */ 1);
3591 csio = &ccb->csio;
3592 /*
3593 * Use the smallest possible command to perform the operation.
3594 */
3595 if ((len & 0xffff0000) == 0) {
3596 /*
3597 * We can fit in a 10 byte cdb.
3598 */
3599 struct scsi_play_10 *scsi_cmd;
3600
3601 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes;
3602 bzero (scsi_cmd, sizeof(*scsi_cmd));
3603 scsi_cmd->op_code = PLAY_10;
3604 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3605 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len);
3606 cdb_len = sizeof(*scsi_cmd);
3607 } else {
3608 struct scsi_play_12 *scsi_cmd;
3609
3610 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes;
3611 bzero (scsi_cmd, sizeof(*scsi_cmd));
3612 scsi_cmd->op_code = PLAY_12;
3613 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3614 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len);
3615 cdb_len = sizeof(*scsi_cmd);
3616 }
3617 cam_fill_csio(csio,
3618 /*retries*/2,
3619 cddone,
3620 /*flags*/CAM_DIR_NONE,
3621 MSG_SIMPLE_Q_TAG,
3622 /*dataptr*/NULL,
3623 /*datalen*/0,
3624 /*sense_len*/SSD_FULL_SIZE,
3625 cdb_len,
3626 /*timeout*/50 * 1000);
3627
3628 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3629 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3630
3631 xpt_release_ccb(ccb);
3632
3633 return(error);
3634}
3635
3636static int
3637cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts,
3638 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf)
3639{
3640 struct scsi_play_msf *scsi_cmd;
3641 struct ccb_scsiio *csio;
3642 union ccb *ccb;
3643 int error;
3644
3645 error = 0;
3646
3647 ccb = cdgetccb(periph, /* priority */ 1);
3648
3649 csio = &ccb->csio;
3650
3651 cam_fill_csio(csio,
3652 /* retries */ 1,
3653 /* cbfcnp */ cddone,
3654 /* flags */ CAM_DIR_NONE,
3655 /* tag_action */ MSG_SIMPLE_Q_TAG,
3656 /* data_ptr */ NULL,
3657 /* dxfer_len */ 0,
3658 /* sense_len */ SSD_FULL_SIZE,
3659 sizeof(struct scsi_play_msf),
3660 /* timeout */ 50000);
3661
3662 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes;
3663 bzero (scsi_cmd, sizeof(*scsi_cmd));
3664
3665 scsi_cmd->op_code = PLAY_MSF;
3666 scsi_cmd->start_m = startm;
3667 scsi_cmd->start_s = starts;
3668 scsi_cmd->start_f = startf;
3669 scsi_cmd->end_m = endm;
3670 scsi_cmd->end_s = ends;
3671 scsi_cmd->end_f = endf;
3672
3673 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3674 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3675
3676 xpt_release_ccb(ccb);
3677
3678 return(error);
3679}
3680
3681
3682static int
3683cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex,
3684 u_int32_t etrack, u_int32_t eindex)
3685{
3686 struct scsi_play_track *scsi_cmd;
3687 struct ccb_scsiio *csio;
3688 union ccb *ccb;
3689 int error;
3690
3691 error = 0;
3692
3693 ccb = cdgetccb(periph, /* priority */ 1);
3694
3695 csio = &ccb->csio;
3696
3697 cam_fill_csio(csio,
3698 /* retries */ 1,
3699 /* cbfcnp */ cddone,
3700 /* flags */ CAM_DIR_NONE,
3701 /* tag_action */ MSG_SIMPLE_Q_TAG,
3702 /* data_ptr */ NULL,
3703 /* dxfer_len */ 0,
3704 /* sense_len */ SSD_FULL_SIZE,
3705 sizeof(struct scsi_play_track),
3706 /* timeout */ 50000);
3707
3708 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes;
3709 bzero (scsi_cmd, sizeof(*scsi_cmd));
3710
3711 scsi_cmd->op_code = PLAY_TRACK;
3712 scsi_cmd->start_track = strack;
3713 scsi_cmd->start_index = sindex;
3714 scsi_cmd->end_track = etrack;
3715 scsi_cmd->end_index = eindex;
3716
3717 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3718 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3719
3720 xpt_release_ccb(ccb);
3721
3722 return(error);
3723}
3724
3725static int
3726cdpause(struct cam_periph *periph, u_int32_t go)
3727{
3728 struct scsi_pause *scsi_cmd;
3729 struct ccb_scsiio *csio;
3730 union ccb *ccb;
3731 int error;
3732
3733 error = 0;
3734
3735 ccb = cdgetccb(periph, /* priority */ 1);
3736
3737 csio = &ccb->csio;
3738
3739 cam_fill_csio(csio,
3740 /* retries */ 1,
3741 /* cbfcnp */ cddone,
3742 /* flags */ CAM_DIR_NONE,