<sys/vmmeter.h> need not be included twice.
[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 $
5fa84fdd 28 * $DragonFly: src/sys/bus/cam/scsi/scsi_cd.c,v 1.17 2004/09/18 19:40:24 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>
984263bc 68
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69#include "../cam.h"
70#include "../cam_ccb.h"
71#include "../cam_extend.h"
72#include "../cam_periph.h"
73#include "../cam_xpt_periph.h"
74#include "../cam_queue.h"
984263bc 75
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76#include "scsi_message.h"
77#include "scsi_da.h"
78#include "scsi_cd.h"
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79
80#define LEADOUT 0xaa /* leadout toc entry */
81
82struct cd_params {
83 u_int32_t blksize;
84 u_long disksize;
85};
86
87typedef enum {
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88 CD_Q_NONE = 0x00,
89 CD_Q_NO_TOUCH = 0x01,
90 CD_Q_BCD_TRACKS = 0x02,
91 CD_Q_NO_CHANGER = 0x04,
92 CD_Q_CHANGER = 0x08,
93 CD_Q_10_BYTE_ONLY = 0x10
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94} cd_quirks;
95
96typedef enum {
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97 CD_FLAG_INVALID = 0x0001,
98 CD_FLAG_NEW_DISC = 0x0002,
99 CD_FLAG_DISC_LOCKED = 0x0004,
100 CD_FLAG_DISC_REMOVABLE = 0x0008,
101 CD_FLAG_TAGGED_QUEUING = 0x0010,
102 CD_FLAG_CHANGER = 0x0040,
103 CD_FLAG_ACTIVE = 0x0080,
104 CD_FLAG_SCHED_ON_COMP = 0x0100,
105 CD_FLAG_RETRY_UA = 0x0200,
106 CD_FLAG_VALID_MEDIA = 0x0400,
107 CD_FLAG_VALID_TOC = 0x0800,
108 CD_FLAG_OPEN = 0x1000,
109 CD_FLAG_SCTX_INIT = 0x2000
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110} cd_flags;
111
112typedef enum {
113 CD_CCB_PROBE = 0x01,
114 CD_CCB_BUFFER_IO = 0x02,
115 CD_CCB_WAITING = 0x03,
116 CD_CCB_TYPE_MASK = 0x0F,
117 CD_CCB_RETRY_UA = 0x10
118} cd_ccb_state;
119
120typedef enum {
121 CHANGER_TIMEOUT_SCHED = 0x01,
122 CHANGER_SHORT_TMOUT_SCHED = 0x02,
123 CHANGER_MANUAL_CALL = 0x04,
124 CHANGER_NEED_TIMEOUT = 0x08
125} cd_changer_flags;
126
127#define ccb_state ppriv_field0
128#define ccb_bp ppriv_ptr1
129
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130struct cd_tocdata {
131 struct ioc_toc_header header;
132 struct cd_toc_entry entries[100];
133};
134
135struct cd_toc_single {
136 struct ioc_toc_header header;
137 struct cd_toc_entry entry;
138};
139
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140typedef enum {
141 CD_STATE_PROBE,
142 CD_STATE_NORMAL
143} cd_state;
144
145struct cd_softc {
146 cam_pinfo pinfo;
147 cd_state state;
148 volatile cd_flags flags;
149 struct buf_queue_head buf_queue;
150 LIST_HEAD(, ccb_hdr) pending_ccbs;
151 struct cd_params params;
152 struct disk disk;
153 union ccb saved_ccb;
154 cd_quirks quirks;
155 struct devstat device_stats;
156 STAILQ_ENTRY(cd_softc) changer_links;
157 struct cdchanger *changer;
158 int bufs_left;
159 struct cam_periph *periph;
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160 int minimum_command_size;
161 struct task sysctl_task;
162 struct sysctl_ctx_list sysctl_ctx;
163 struct sysctl_oid *sysctl_tree;
164 STAILQ_HEAD(, cd_mode_params) mode_queue;
165 struct cd_tocdata toc;
166};
167
168struct cd_page_sizes {
169 int page;
170 int page_size;
171};
172
173static struct cd_page_sizes cd_page_size_table[] =
174{
175 { AUDIO_PAGE, sizeof(struct cd_audio_page)}
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176};
177
178struct cd_quirk_entry {
179 struct scsi_inquiry_pattern inq_pat;
180 cd_quirks quirks;
181};
182
183/*
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184 * The changer quirk entries aren't strictly necessary. Basically, what
185 * they do is tell cdregister() up front that a device is a changer.
186 * Otherwise, it will figure that fact out once it sees a LUN on the device
187 * that is greater than 0. If it is known up front that a device is a changer,
188 * all I/O to the device will go through the changer scheduling routines, as
984263bc 189 * opposed to the "normal" CD code.
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190 *
191 * NOTE ON 10_BYTE_ONLY quirks: Any 10_BYTE_ONLY quirks MUST be because
192 * your device hangs when it gets a 10 byte command. Adding a quirk just
193 * to get rid of the informative diagnostic message is not acceptable. All
194 * 10_BYTE_ONLY quirks must be documented in full in a PR (which should be
195 * referenced in a comment along with the quirk) , and must be approved by
196 * ken@FreeBSD.org. Any quirks added that don't adhere to this policy may
197 * be removed until the submitter can explain why they are needed.
198 * 10_BYTE_ONLY quirks will be removed (as they will no longer be necessary)
199 * when the CAM_NEW_TRAN_CODE work is done.
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200 */
201static struct cd_quirk_entry cd_quirk_table[] =
202{
203 {
204 { T_CDROM, SIP_MEDIA_REMOVABLE, "NRC", "MBR-7", "*"},
205 /*quirks*/ CD_Q_CHANGER
206 },
207 {
208 { T_CDROM, SIP_MEDIA_REMOVABLE, "PIONEER", "CD-ROM DRM*",
209 "*"}, /* quirks */ CD_Q_CHANGER
210 },
211 {
212 { T_CDROM, SIP_MEDIA_REMOVABLE, "NAKAMICH", "MJ-*", "*"},
213 /* quirks */ CD_Q_CHANGER
214 },
215 {
216 { T_CDROM, SIP_MEDIA_REMOVABLE, "CHINON", "CD-ROM CDS-535","*"},
217 /* quirks */ CD_Q_BCD_TRACKS
218 }
219};
220
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221static d_open_t cdopen;
222static d_close_t cdclose;
223static d_ioctl_t cdioctl;
224static d_strategy_t cdstrategy;
225
226static periph_init_t cdinit;
227static periph_ctor_t cdregister;
228static periph_dtor_t cdcleanup;
229static periph_start_t cdstart;
230static periph_oninv_t cdoninvalidate;
231static void cdasync(void *callback_arg, u_int32_t code,
232 struct cam_path *path, void *arg);
62ade751 233static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS);
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234static void cdshorttimeout(void *arg);
235static void cdschedule(struct cam_periph *periph, int priority);
236static void cdrunchangerqueue(void *arg);
237static void cdchangerschedule(struct cd_softc *softc);
238static int cdrunccb(union ccb *ccb,
239 int (*error_routine)(union ccb *ccb,
240 u_int32_t cam_flags,
241 u_int32_t sense_flags),
242 u_int32_t cam_flags, u_int32_t sense_flags);
243static union ccb *cdgetccb(struct cam_periph *periph,
244 u_int32_t priority);
245static void cddone(struct cam_periph *periph,
246 union ccb *start_ccb);
247static int cderror(union ccb *ccb, u_int32_t cam_flags,
248 u_int32_t sense_flags);
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249static union cd_pages *cdgetpage(struct cd_mode_params *mode_params);
250static int cdgetpagesize(int page_num);
984263bc 251static void cdprevent(struct cam_periph *periph, int action);
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252static int cdcheckmedia(struct cam_periph *periph);
253static int cdsize(struct cam_periph *periph, u_int32_t *size);
254static int cd6byteworkaround(union ccb *ccb);
984263bc 255static int cdreadtoc(struct cam_periph *periph, u_int32_t mode,
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256 u_int32_t start, u_int8_t *data,
257 u_int32_t len, u_int32_t sense_flags);
984263bc 258static int cdgetmode(struct cam_periph *periph,
62ade751 259 struct cd_mode_params *data, u_int32_t page);
984263bc 260static int cdsetmode(struct cam_periph *periph,
62ade751 261 struct cd_mode_params *data);
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262static int cdplay(struct cam_periph *periph, u_int32_t blk,
263 u_int32_t len);
264static int cdreadsubchannel(struct cam_periph *periph,
265 u_int32_t mode, u_int32_t format,
266 int track,
267 struct cd_sub_channel_info *data,
268 u_int32_t len);
269static int cdplaymsf(struct cam_periph *periph, u_int32_t startm,
270 u_int32_t starts, u_int32_t startf,
271 u_int32_t endm, u_int32_t ends,
272 u_int32_t endf);
273static int cdplaytracks(struct cam_periph *periph,
274 u_int32_t strack, u_int32_t sindex,
275 u_int32_t etrack, u_int32_t eindex);
276static int cdpause(struct cam_periph *periph, u_int32_t go);
277static int cdstopunit(struct cam_periph *periph, u_int32_t eject);
62ade751 278static int cdstartunit(struct cam_periph *periph, int load);
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279static int cdsetspeed(struct cam_periph *periph,
280 u_int32_t rdspeed, u_int32_t wrspeed);
281static int cdreportkey(struct cam_periph *periph,
282 struct dvd_authinfo *authinfo);
283static int cdsendkey(struct cam_periph *periph,
284 struct dvd_authinfo *authinfo);
285static int cdreaddvdstructure(struct cam_periph *periph,
286 struct dvd_struct *dvdstruct);
287
288static struct periph_driver cddriver =
289{
290 cdinit, "cd",
291 TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0
292};
293
294DATA_SET(periphdriver_set, cddriver);
295
296/* For 2.2-stable support */
297#ifndef D_DISK
298#define D_DISK 0
299#endif
300static struct cdevsw cd_cdevsw = {
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301 /* name */ "cd",
302 /* maj */ SCSICD_CDEV_MAJOR,
303 /* flags */ D_DISK,
304 /* port */ NULL,
455fcd7e 305 /* clone */ NULL,
fabb8ceb 306
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307 /* open */ cdopen,
308 /* close */ cdclose,
309 /* read */ physread,
310 /* write */ physwrite,
311 /* ioctl */ cdioctl,
312 /* poll */ nopoll,
313 /* mmap */ nommap,
314 /* strategy */ cdstrategy,
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315 /* dump */ nodump,
316 /* psize */ nopsize,
984263bc 317};
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318
319static struct extend_array *cdperiphs;
320static int num_changers;
321
322#ifndef CHANGER_MIN_BUSY_SECONDS
323#define CHANGER_MIN_BUSY_SECONDS 5
324#endif
325#ifndef CHANGER_MAX_BUSY_SECONDS
326#define CHANGER_MAX_BUSY_SECONDS 15
327#endif
328
329static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS;
330static int changer_max_busy_seconds = CHANGER_MAX_BUSY_SECONDS;
331
332/*
333 * XXX KDM this CAM node should be moved if we ever get more CAM sysctl
334 * variables.
335 */
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336SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver");
337SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer");
338SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW,
339 &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum");
62ade751 340TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds);
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341SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW,
342 &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum");
62ade751 343TUNABLE_INT("kern.cam.cd.changer.max_busy_seconds", &changer_max_busy_seconds);
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344
345struct cdchanger {
346 path_id_t path_id;
347 target_id_t target_id;
348 int num_devices;
349 struct camq devq;
350 struct timeval start_time;
351 struct cd_softc *cur_device;
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352 struct callout short_handle;
353 struct callout long_handle;
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354 volatile cd_changer_flags flags;
355 STAILQ_ENTRY(cdchanger) changer_links;
356 STAILQ_HEAD(chdevlist, cd_softc) chluns;
357};
358
359static STAILQ_HEAD(changerlist, cdchanger) changerq;
360
361void
362cdinit(void)
363{
364 cam_status status;
365 struct cam_path *path;
366
367 /*
368 * Create our extend array for storing the devices we attach to.
369 */
370 cdperiphs = cam_extend_new();
371 if (cdperiphs == NULL) {
372 printf("cd: Failed to alloc extend array!\n");
373 return;
374 }
375
376 /*
377 * Install a global async callback. This callback will
378 * receive async callbacks like "new device found".
379 */
380 status = xpt_create_path(&path, /*periph*/NULL, CAM_XPT_PATH_ID,
381 CAM_TARGET_WILDCARD, CAM_LUN_WILDCARD);
382
383 if (status == CAM_REQ_CMP) {
384 struct ccb_setasync csa;
385
386 xpt_setup_ccb(&csa.ccb_h, path, /*priority*/5);
387 csa.ccb_h.func_code = XPT_SASYNC_CB;
388 csa.event_enable = AC_FOUND_DEVICE;
389 csa.callback = cdasync;
390 csa.callback_arg = NULL;
391 xpt_action((union ccb *)&csa);
392 status = csa.ccb_h.status;
393 xpt_free_path(path);
394 }
395
396 if (status != CAM_REQ_CMP) {
397 printf("cd: Failed to attach master async callback "
398 "due to status 0x%x!\n", status);
399 }
400}
401
402static void
403cdoninvalidate(struct cam_periph *periph)
404{
405 int s;
406 struct cd_softc *softc;
407 struct buf *q_bp;
408 struct ccb_setasync csa;
409
410 softc = (struct cd_softc *)periph->softc;
411
412 /*
413 * De-register any async callbacks.
414 */
415 xpt_setup_ccb(&csa.ccb_h, periph->path,
416 /* priority */ 5);
417 csa.ccb_h.func_code = XPT_SASYNC_CB;
418 csa.event_enable = 0;
419 csa.callback = cdasync;
420 csa.callback_arg = periph;
421 xpt_action((union ccb *)&csa);
422
423 softc->flags |= CD_FLAG_INVALID;
424
425 /*
426 * Although the oninvalidate() routines are always called at
427 * splsoftcam, we need to be at splbio() here to keep the buffer
428 * queue from being modified while we traverse it.
429 */
430 s = splbio();
431
432 /*
433 * Return all queued I/O with ENXIO.
434 * XXX Handle any transactions queued to the card
435 * with XPT_ABORT_CCB.
436 */
437 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL){
438 bufq_remove(&softc->buf_queue, q_bp);
439 q_bp->b_resid = q_bp->b_bcount;
440 q_bp->b_error = ENXIO;
441 q_bp->b_flags |= B_ERROR;
442 biodone(q_bp);
443 }
444 splx(s);
445
446 /*
447 * If this device is part of a changer, and it was scheduled
448 * to run, remove it from the run queue since we just nuked
449 * all of its scheduled I/O.
450 */
451 if ((softc->flags & CD_FLAG_CHANGER)
452 && (softc->pinfo.index != CAM_UNQUEUED_INDEX))
453 camq_remove(&softc->changer->devq, softc->pinfo.index);
454
455 xpt_print_path(periph->path);
456 printf("lost device\n");
457}
458
459static void
460cdcleanup(struct cam_periph *periph)
461{
462 struct cd_softc *softc;
463 int s;
464
465 softc = (struct cd_softc *)periph->softc;
466
467 xpt_print_path(periph->path);
468 printf("removing device entry\n");
469
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470 if ((softc->flags & CD_FLAG_SCTX_INIT) != 0
471 && sysctl_ctx_free(&softc->sysctl_ctx) != 0) {
472 xpt_print_path(periph->path);
473 printf("can't remove sysctl context\n");
474 }
475
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476 s = splsoftcam();
477 /*
478 * In the queued, non-active case, the device in question
479 * has already been removed from the changer run queue. Since this
480 * device is active, we need to de-activate it, and schedule
481 * another device to run. (if there is another one to run)
482 */
483 if ((softc->flags & CD_FLAG_CHANGER)
484 && (softc->flags & CD_FLAG_ACTIVE)) {
485
486 /*
487 * The purpose of the short timeout is soley to determine
488 * whether the current device has finished or not. Well,
489 * since we're removing the active device, we know that it
490 * is finished. So, get rid of the short timeout.
491 * Otherwise, if we're in the time period before the short
492 * timeout fires, and there are no other devices in the
493 * queue to run, there won't be any other device put in the
494 * active slot. i.e., when we call cdrunchangerqueue()
495 * below, it won't do anything. Then, when the short
496 * timeout fires, it'll look at the "current device", which
497 * we are free below, and possibly panic the kernel on a
498 * bogus pointer reference.
499 *
500 * The long timeout doesn't really matter, since we
501 * decrement the qfrozen_cnt to indicate that there is
502 * nothing in the active slot now. Therefore, there won't
503 * be any bogus pointer references there.
504 */
505 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
5fa84fdd 506 callout_stop(&softc->changer->short_handle);
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507 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
508 }
509 softc->changer->devq.qfrozen_cnt--;
510 softc->changer->flags |= CHANGER_MANUAL_CALL;
511 cdrunchangerqueue(softc->changer);
512 }
513
514 /*
515 * If we're removing the last device on the changer, go ahead and
516 * remove the changer device structure.
517 */
518 if ((softc->flags & CD_FLAG_CHANGER)
519 && (--softc->changer->num_devices == 0)) {
520
521 /*
522 * Theoretically, there shouldn't be any timeouts left, but
523 * I'm not completely sure that that will be the case. So,
524 * it won't hurt to check and see if there are any left.
525 */
526 if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) {
5fa84fdd 527 callout_stop(&softc->changer->long_handle);
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528 softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED;
529 }
530
531 if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
5fa84fdd 532 callout_stop(&softc->changer->short_handle);
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533 softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
534 }
535
536 STAILQ_REMOVE(&changerq, softc->changer, cdchanger,
537 changer_links);
538 xpt_print_path(periph->path);
539 printf("removing changer entry\n");
540 free(softc->changer, M_DEVBUF);
541 num_changers--;
542 }
543 devstat_remove_entry(&softc->device_stats);
544 cam_extend_release(cdperiphs, periph->unit_number);
e4c9c0c8 545 if (softc->disk.d_rawdev) {
335dda38 546 disk_destroy(&softc->disk);
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547 }
548 free(softc, M_DEVBUF);
549 splx(s);
550}
551
552static void
553cdasync(void *callback_arg, u_int32_t code,
554 struct cam_path *path, void *arg)
555{
556 struct cam_periph *periph;
557
558 periph = (struct cam_periph *)callback_arg;
559 switch (code) {
560 case AC_FOUND_DEVICE:
561 {
562 struct ccb_getdev *cgd;
563 cam_status status;
564
565 cgd = (struct ccb_getdev *)arg;
566
567 if (SID_TYPE(&cgd->inq_data) != T_CDROM
568 && SID_TYPE(&cgd->inq_data) != T_WORM)
569 break;
570
571 /*
572 * Allocate a peripheral instance for
573 * this device and start the probe
574 * process.
575 */
576 status = cam_periph_alloc(cdregister, cdoninvalidate,
577 cdcleanup, cdstart,
578 "cd", CAM_PERIPH_BIO,
579 cgd->ccb_h.path, cdasync,
580 AC_FOUND_DEVICE, cgd);
581
582 if (status != CAM_REQ_CMP
583 && status != CAM_REQ_INPROG)
584 printf("cdasync: Unable to attach new device "
585 "due to status 0x%x\n", status);
586
587 break;
588 }
589 case AC_SENT_BDR:
590 case AC_BUS_RESET:
591 {
592 struct cd_softc *softc;
593 struct ccb_hdr *ccbh;
594 int s;
595
596 softc = (struct cd_softc *)periph->softc;
597 s = splsoftcam();
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;
606 splx(s);
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
MD
709 softc->state = CD_STATE_PROBE;
710 bufq_init(&softc->buf_queue);
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
MD
1012 int unit, error;
1013 int s;
1014
1015 unit = dkunit(dev);
1016 periph = cam_extend_get(cdperiphs, unit);
1017
1018 if (periph == NULL)
1019 return (ENXIO);
1020
1021 softc = (struct cd_softc *)periph->softc;
1022
1023 /*
1024 * Grab splsoftcam and hold it until we lock the peripheral.
1025 */
1026 s = splsoftcam();
1027 if (softc->flags & CD_FLAG_INVALID) {
1028 splx(s);
1029 return(ENXIO);
1030 }
1031
377d4740 1032 if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
984263bc
MD
1033 splx(s);
1034 return (error);
1035 }
1036
1037 splx(s);
1038
1039 if (cam_periph_acquire(periph) != CAM_REQ_CMP)
1040 return(ENXIO);
1041
984263bc 1042 /*
62ade751
MD
1043 * Check for media, and set the appropriate flags. We don't bail
1044 * if we don't have media, but then we don't allow anything but the
1045 * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media.
1046 *
1047 * XXX KDM for now, we do fail the open if we don't have media. We
1048 * can change this once we've figured out how to make the slice
1049 * code work well with media changing underneath it.
984263bc 1050 */
62ade751 1051 error = cdcheckmedia(periph);
984263bc 1052
62ade751
MD
1053 if (error == 0)
1054 softc->flags |= CD_FLAG_OPEN;
984263bc
MD
1055
1056 cam_periph_unlock(periph);
1057
1058 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n"));
1059
1060 return (error);
1061}
1062
1063static int
41c20dac 1064cdclose(dev_t dev, int flag, int fmt, struct thread *td)
984263bc
MD
1065{
1066 struct cam_periph *periph;
1067 struct cd_softc *softc;
1068 int unit, error;
1069
1070 unit = dkunit(dev);
1071 periph = cam_extend_get(cdperiphs, unit);
1072 if (periph == NULL)
1073 return (ENXIO);
1074
1075 softc = (struct cd_softc *)periph->softc;
1076
377d4740 1077 if ((error = cam_periph_lock(periph, 0)) != 0)
984263bc
MD
1078 return (error);
1079
1080 if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)
1081 cdprevent(periph, PR_ALLOW);
1082
1083 /*
1084 * Unconditionally set the dsopen() flags back to their default
1085 * state.
1086 */
1087 softc->disk.d_dsflags &= ~DSO_NOLABELS;
1088 softc->disk.d_dsflags |= DSO_COMPATLABEL;
1089
1090 /*
1091 * Since we're closing this CD, mark the blocksize as unavailable.
62ade751 1092 * It will be marked as available when the CD is opened again.
984263bc
MD
1093 */
1094 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE;
1095
62ade751
MD
1096 /*
1097 * We'll check the media and toc again at the next open().
1098 */
1099 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
1100
1101 softc->flags &= ~CD_FLAG_OPEN;
1102
984263bc
MD
1103 cam_periph_unlock(periph);
1104 cam_periph_release(periph);
1105
1106 return (0);
1107}
1108
1109static void
1110cdshorttimeout(void *arg)
1111{
1112 struct cdchanger *changer;
1113 int s;
1114
1115 s = splsoftcam();
1116
1117 changer = (struct cdchanger *)arg;
1118
1119 /* Always clear the short timeout flag, since that's what we're in */
1120 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
1121
1122 /*
1123 * Check to see if there is any more pending or outstanding I/O for
1124 * this device. If not, move it out of the active slot.
1125 */
1126 if ((bufq_first(&changer->cur_device->buf_queue) == NULL)
1127 && (changer->cur_device->device_stats.busy_count == 0)) {
1128 changer->flags |= CHANGER_MANUAL_CALL;
1129 cdrunchangerqueue(changer);
1130 }
1131
1132 splx(s);
1133}
1134
1135/*
1136 * This is a wrapper for xpt_schedule. It only applies to changers.
1137 */
1138static void
1139cdschedule(struct cam_periph *periph, int priority)
1140{
1141 struct cd_softc *softc;
1142 int s;
1143
1144 s = splsoftcam();
1145
1146 softc = (struct cd_softc *)periph->softc;
1147
1148 /*
1149 * If this device isn't currently queued, and if it isn't
1150 * the active device, then we queue this device and run the
1151 * changer queue if there is no timeout scheduled to do it.
1152 * If this device is the active device, just schedule it
1153 * to run again. If this device is queued, there should be
1154 * a timeout in place already that will make sure it runs.
1155 */
1156 if ((softc->pinfo.index == CAM_UNQUEUED_INDEX)
1157 && ((softc->flags & CD_FLAG_ACTIVE) == 0)) {
1158 /*
1159 * We don't do anything with the priority here.
1160 * This is strictly a fifo queue.
1161 */
1162 softc->pinfo.priority = 1;
1163 softc->pinfo.generation = ++softc->changer->devq.generation;
1164 camq_insert(&softc->changer->devq, (cam_pinfo *)softc);
1165
1166 /*
1167 * Since we just put a device in the changer queue,
1168 * check and see if there is a timeout scheduled for
1169 * this changer. If so, let the timeout handle
1170 * switching this device into the active slot. If
1171 * not, manually call the timeout routine to
1172 * bootstrap things.
1173 */
1174 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0)
1175 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)
1176 && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){
1177 softc->changer->flags |= CHANGER_MANUAL_CALL;
1178 cdrunchangerqueue(softc->changer);
1179 }
1180 } else if ((softc->flags & CD_FLAG_ACTIVE)
1181 && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0))
1182 xpt_schedule(periph, priority);
1183
1184 splx(s);
1185
1186}
1187
1188static void
1189cdrunchangerqueue(void *arg)
1190{
1191 struct cd_softc *softc;
1192 struct cdchanger *changer;
1193 int called_from_timeout;
1194 int s;
1195
1196 s = splsoftcam();
1197
1198 changer = (struct cdchanger *)arg;
1199
1200 /*
1201 * If we have NOT been called from cdstrategy() or cddone(), and
1202 * instead from a timeout routine, go ahead and clear the
1203 * timeout flag.
1204 */
1205 if ((changer->flags & CHANGER_MANUAL_CALL) == 0) {
1206 changer->flags &= ~CHANGER_TIMEOUT_SCHED;
1207 called_from_timeout = 1;
1208 } else
1209 called_from_timeout = 0;
1210
1211 /* Always clear the manual call flag */
1212 changer->flags &= ~CHANGER_MANUAL_CALL;
1213
1214 /* nothing to do if the queue is empty */
1215 if (changer->devq.entries <= 0) {
1216 splx(s);
1217 return;
1218 }
1219
1220 /*
1221 * If the changer queue is frozen, that means we have an active
1222 * device.
1223 */
1224 if (changer->devq.qfrozen_cnt > 0) {
1225
1226 if (changer->cur_device->device_stats.busy_count > 0) {
1227 changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP;
1228 changer->cur_device->bufs_left =
1229 changer->cur_device->device_stats.busy_count;
1230 if (called_from_timeout) {
5fa84fdd
MD
1231 callout_reset(&changer->long_handle,
1232 changer_max_busy_seconds * hz,
1233 cdrunchangerqueue, changer);
984263bc
MD
1234 changer->flags |= CHANGER_TIMEOUT_SCHED;
1235 }
1236 splx(s);
1237 return;
1238 }
1239
1240 /*
1241 * We always need to reset the frozen count and clear the
1242 * active flag.
1243 */
1244 changer->devq.qfrozen_cnt--;
1245 changer->cur_device->flags &= ~CD_FLAG_ACTIVE;
1246 changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP;
1247
1248 /*
1249 * Check to see whether the current device has any I/O left
1250 * to do. If so, requeue it at the end of the queue. If
1251 * not, there is no need to requeue it.
1252 */
1253 if (bufq_first(&changer->cur_device->buf_queue) != NULL) {
1254
1255 changer->cur_device->pinfo.generation =
1256 ++changer->devq.generation;
1257 camq_insert(&changer->devq,
1258 (cam_pinfo *)changer->cur_device);
1259 }
1260 }
1261
1262 softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD);
1263
1264 changer->cur_device = softc;
1265
1266 changer->devq.qfrozen_cnt++;
1267 softc->flags |= CD_FLAG_ACTIVE;
1268
1269 /* Just in case this device is waiting */
1270 wakeup(&softc->changer);
1271 xpt_schedule(softc->periph, /*priority*/ 1);
1272
1273 /*
1274 * Get rid of any pending timeouts, and set a flag to schedule new
1275 * ones so this device gets its full time quantum.
1276 */
1277 if (changer->flags & CHANGER_TIMEOUT_SCHED) {
5fa84fdd 1278 callout_stop(&changer->long_handle);
984263bc
MD
1279 changer->flags &= ~CHANGER_TIMEOUT_SCHED;
1280 }
1281
1282 if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
5fa84fdd 1283 callout_stop(&changer->short_handle);
984263bc
MD
1284 changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
1285 }
1286
1287 /*
1288 * We need to schedule timeouts, but we only do this after the
1289 * first transaction has completed. This eliminates the changer
1290 * switch time.
1291 */
1292 changer->flags |= CHANGER_NEED_TIMEOUT;
1293
1294 splx(s);
1295}
1296
1297static void
1298cdchangerschedule(struct cd_softc *softc)
1299{
1300 struct cdchanger *changer;
1301 int s;
1302
1303 s = splsoftcam();
1304
1305 changer = softc->changer;
1306
1307 /*
1308 * If this is a changer, and this is the current device,
1309 * and this device has at least the minimum time quantum to
1310 * run, see if we can switch it out.
1311 */
1312 if ((softc->flags & CD_FLAG_ACTIVE)
1313 && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0)
1314 && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) {
1315 /*
1316 * We try three things here. The first is that we
1317 * check to see whether the schedule on completion
1318 * flag is set. If it is, we decrement the number
1319 * of buffers left, and if it's zero, we reschedule.
1320 * Next, we check to see whether the pending buffer
1321 * queue is empty and whether there are no
1322 * outstanding transactions. If so, we reschedule.
1323 * Next, we see if the pending buffer queue is empty.
1324 * If it is, we set the number of buffers left to
1325 * the current active buffer count and set the
1326 * schedule on complete flag.
1327 */
1328 if (softc->flags & CD_FLAG_SCHED_ON_COMP) {
1329 if (--softc->bufs_left == 0) {
1330 softc->changer->flags |=
1331 CHANGER_MANUAL_CALL;
1332 softc->flags &= ~CD_FLAG_SCHED_ON_COMP;
1333 cdrunchangerqueue(softc->changer);
1334 }
1335 } else if ((bufq_first(&softc->buf_queue) == NULL)
1336 && (softc->device_stats.busy_count == 0)) {
1337 softc->changer->flags |= CHANGER_MANUAL_CALL;
1338 cdrunchangerqueue(softc->changer);
1339 }
1340 } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT)
1341 && (softc->flags & CD_FLAG_ACTIVE)) {
1342
1343 /*
1344 * Now that the first transaction to this
1345 * particular device has completed, we can go ahead
1346 * and schedule our timeouts.
1347 */
1348 if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) {
5fa84fdd
MD
1349 callout_reset(&changer->long_handle,
1350 changer_max_busy_seconds * hz,
1351 cdrunchangerqueue, changer);
984263bc
MD
1352 changer->flags |= CHANGER_TIMEOUT_SCHED;
1353 } else
1354 printf("cdchangerschedule: already have a long"
1355 " timeout!\n");
1356
1357 if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) {
5fa84fdd
MD
1358 callout_reset(&changer->short_handle,
1359 changer_min_busy_seconds * hz,
1360 cdshorttimeout, changer);
984263bc
MD
1361 changer->flags |= CHANGER_SHORT_TMOUT_SCHED;
1362 } else
1363 printf("cdchangerschedule: already have a short "
1364 "timeout!\n");
1365
1366 /*
1367 * We just scheduled timeouts, no need to schedule
1368 * more.
1369 */
1370 changer->flags &= ~CHANGER_NEED_TIMEOUT;
1371
1372 }
1373 splx(s);
1374}
1375
1376static int
1377cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb,
1378 u_int32_t cam_flags,
1379 u_int32_t sense_flags),
1380 u_int32_t cam_flags, u_int32_t sense_flags)
1381{
1382 struct cd_softc *softc;
1383 struct cam_periph *periph;
1384 int error;
1385
1386 periph = xpt_path_periph(ccb->ccb_h.path);
1387 softc = (struct cd_softc *)periph->softc;
1388
1389 error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags,
1390 &softc->device_stats);
1391
1392 if (softc->flags & CD_FLAG_CHANGER)
1393 cdchangerschedule(softc);
1394
1395 return(error);
1396}
1397
1398static union ccb *
1399cdgetccb(struct cam_periph *periph, u_int32_t priority)
1400{
1401 struct cd_softc *softc;
1402 int s;
1403
1404 softc = (struct cd_softc *)periph->softc;
1405
1406 if (softc->flags & CD_FLAG_CHANGER) {
1407
1408 s = splsoftcam();
1409
1410 /*
1411 * This should work the first time this device is woken up,
1412 * but just in case it doesn't, we use a while loop.
1413 */
1414 while ((softc->flags & CD_FLAG_ACTIVE) == 0) {
1415 /*
1416 * If this changer isn't already queued, queue it up.
1417 */
1418 if (softc->pinfo.index == CAM_UNQUEUED_INDEX) {
1419 softc->pinfo.priority = 1;
1420 softc->pinfo.generation =
1421 ++softc->changer->devq.generation;
1422 camq_insert(&softc->changer->devq,
1423 (cam_pinfo *)softc);
1424 }
1425 if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0)
1426 && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)
1427 && ((softc->changer->flags
1428 & CHANGER_SHORT_TMOUT_SCHED)==0)) {
1429 softc->changer->flags |= CHANGER_MANUAL_CALL;
1430 cdrunchangerqueue(softc->changer);
1431 } else
377d4740 1432 tsleep(&softc->changer, 0, "cgticb", 0);
984263bc
MD
1433 }
1434 splx(s);
1435 }
1436 return(cam_periph_getccb(periph, priority));
1437}
1438
1439
1440/*
1441 * Actually translate the requested transfer into one the physical driver
1442 * can understand. The transfer is described by a buf and will include
1443 * only one physical transfer.
1444 */
1445static void
1446cdstrategy(struct buf *bp)
1447{
1448 struct cam_periph *periph;
1449 struct cd_softc *softc;
1450 u_int unit, part;
1451 int s;
1452
1453 unit = dkunit(bp->b_dev);
1454 part = dkpart(bp->b_dev);
1455 periph = cam_extend_get(cdperiphs, unit);
1456 if (periph == NULL) {
1457 bp->b_error = ENXIO;
1458 goto bad;
1459 }
1460
1461 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n"));
1462
1463 softc = (struct cd_softc *)periph->softc;
1464
1465 /*
1466 * Mask interrupts so that the pack cannot be invalidated until
1467 * after we are in the queue. Otherwise, we might not properly
1468 * clean up one of the buffers.
1469 */
1470 s = splbio();
1471
1472 /*
1473 * If the device has been made invalid, error out
1474 */
1475 if ((softc->flags & CD_FLAG_INVALID)) {
1476 splx(s);
1477 bp->b_error = ENXIO;
1478 goto bad;
1479 }
1480
62ade751
MD
1481 /*
1482 * If we don't have valid media, look for it before trying to
1483 * schedule the I/O.
1484 */
1485 if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) {
1486 int error;
1487
1488 error = cdcheckmedia(periph);
1489 if (error != 0) {
1490 splx(s);
1491 bp->b_error = error;
1492 goto bad;
1493 }
1494 }
1495
984263bc
MD
1496 /*
1497 * Place it in the queue of disk activities for this disk
1498 */
1499 bufqdisksort(&softc->buf_queue, bp);
1500
1501 splx(s);
1502
1503 /*
1504 * Schedule ourselves for performing the work. We do things
1505 * differently for changers.
1506 */
1507 if ((softc->flags & CD_FLAG_CHANGER) == 0)
1508 xpt_schedule(periph, /* XXX priority */1);
1509 else
1510 cdschedule(periph, /* priority */ 1);
1511
1512 return;
1513bad:
1514 bp->b_flags |= B_ERROR;
1515 /*
1516 * Correctly set the buf to indicate a completed xfer
1517 */
1518 bp->b_resid = bp->b_bcount;
1519 biodone(bp);
1520 return;
1521}
1522
1523static void
1524cdstart(struct cam_periph *periph, union ccb *start_ccb)
1525{
1526 struct cd_softc *softc;
1527 struct buf *bp;
1528 struct ccb_scsiio *csio;
1529 struct scsi_read_capacity_data *rcap;
1530 int s;
1531
1532 softc = (struct cd_softc *)periph->softc;
1533
1534 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n"));
1535
1536 switch (softc->state) {
1537 case CD_STATE_NORMAL:
1538 {
1539 int oldspl;
1540
1541 s = splbio();
1542 bp = bufq_first(&softc->buf_queue);
1543 if (periph->immediate_priority <= periph->pinfo.priority) {
1544 start_ccb->ccb_h.ccb_state = CD_CCB_WAITING;
1545
1546 SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1547 periph_links.sle);
1548 periph->immediate_priority = CAM_PRIORITY_NONE;
1549 splx(s);
1550 wakeup(&periph->ccb_list);
1551 } else if (bp == NULL) {
1552 splx(s);
1553 xpt_release_ccb(start_ccb);
1554 } else {
1555 bufq_remove(&softc->buf_queue, bp);
1556
1557 devstat_start_transaction(&softc->device_stats);
1558
1559 scsi_read_write(&start_ccb->csio,
1560 /*retries*/4,
1561 /* cbfcnp */ cddone,
1562 (bp->b_flags & B_ORDERED) != 0 ?
1563 MSG_ORDERED_Q_TAG :
1564 MSG_SIMPLE_Q_TAG,
1565 /* read */bp->b_flags & B_READ,
1566 /* byte2 */ 0,
1567 /* minimum_cmd_size */ 10,
1568 /* lba */ bp->b_pblkno,
1569 bp->b_bcount / softc->params.blksize,
1570 /* data_ptr */ bp->b_data,
1571 /* dxfer_len */ bp->b_bcount,
1572 /* sense_len */ SSD_FULL_SIZE,
1573 /* timeout */ 30000);
1574 start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO;
1575
1576
1577 /*
1578 * Block out any asyncronous callbacks
1579 * while we touch the pending ccb list.
1580 */
1581 oldspl = splcam();
1582 LIST_INSERT_HEAD(&softc->pending_ccbs,
1583 &start_ccb->ccb_h, periph_links.le);
1584 splx(oldspl);
1585
1586 /* We expect a unit attention from this device */
1587 if ((softc->flags & CD_FLAG_RETRY_UA) != 0) {
1588 start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA;
1589 softc->flags &= ~CD_FLAG_RETRY_UA;
1590 }
1591
1592 start_ccb->ccb_h.ccb_bp = bp;
1593 bp = bufq_first(&softc->buf_queue);
1594 splx(s);
1595
1596 xpt_action(start_ccb);
1597 }
1598 if (bp != NULL) {
1599 /* Have more work to do, so ensure we stay scheduled */
1600 xpt_schedule(periph, /* XXX priority */1);
1601 }
1602 break;
1603 }
1604 case CD_STATE_PROBE:
1605 {
1606
898d961b 1607 rcap = malloc(sizeof(*rcap), M_TEMP, M_INTWAIT);
984263bc
MD
1608 csio = &start_ccb->csio;
1609 scsi_read_capacity(csio,
1610 /*retries*/1,
1611 cddone,
1612 MSG_SIMPLE_Q_TAG,
1613 rcap,
1614 SSD_FULL_SIZE,
1615 /*timeout*/20000);
1616 start_ccb->ccb_h.ccb_bp = NULL;
1617 start_ccb->ccb_h.ccb_state = CD_CCB_PROBE;
1618 xpt_action(start_ccb);
1619 break;
1620 }
1621 }
1622}
1623
1624static void
1625cddone(struct cam_periph *periph, union ccb *done_ccb)
1626{
1627 struct cd_softc *softc;
1628 struct ccb_scsiio *csio;
1629
1630 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n"));
1631
1632 softc = (struct cd_softc *)periph->softc;
1633 csio = &done_ccb->csio;
1634
1635 switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) {
1636 case CD_CCB_BUFFER_IO:
1637 {
1638 struct buf *bp;
1639 int error;
1640 int oldspl;
1641
1642 bp = (struct buf *)done_ccb->ccb_h.ccb_bp;
1643 error = 0;
1644
1645 if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1646 int sf;
1647
1648 if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0)
1649 sf = SF_RETRY_UA;
1650 else
1651 sf = 0;
1652
1653 /* Retry selection timeouts */
1654 sf |= SF_RETRY_SELTO;
1655
1656 if ((error = cderror(done_ccb, 0, sf)) == ERESTART) {
1657 /*
1658 * A retry was scheuled, so
1659 * just return.
1660 */
1661 return;
1662 }
1663 }
1664
1665 if (error != 0) {
1666 int s;
1667 struct buf *q_bp;
1668
1669 xpt_print_path(periph->path);
1670 printf("cddone: got error %#x back\n", error);
1671 s = splbio();
1672 while ((q_bp = bufq_first(&softc->buf_queue)) != NULL) {
1673 bufq_remove(&softc->buf_queue, q_bp);
1674 q_bp->b_resid = q_bp->b_bcount;
1675 q_bp->b_error = EIO;
1676 q_bp->b_flags |= B_ERROR;
1677 biodone(q_bp);
1678 }
1679 splx(s);
1680 bp->b_resid = bp->b_bcount;
1681 bp->b_error = error;
1682 bp->b_flags |= B_ERROR;
1683 cam_release_devq(done_ccb->ccb_h.path,
1684 /*relsim_flags*/0,
1685 /*reduction*/0,
1686 /*timeout*/0,
1687 /*getcount_only*/0);
1688
1689 } else {
1690 bp->b_resid = csio->resid;
1691 bp->b_error = 0;
1692 if (bp->b_resid != 0) {
1693 /* Short transfer ??? */
1694 bp->b_flags |= B_ERROR;
1695 }
1696 }
1697
1698 /*
1699 * Block out any asyncronous callbacks
1700 * while we touch the pending ccb list.
1701 */
1702 oldspl = splcam();
1703 LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1704 splx(oldspl);
1705
1706 if (softc->flags & CD_FLAG_CHANGER)
1707 cdchangerschedule(softc);
1708
1709 devstat_end_transaction_buf(&softc->device_stats, bp);
1710 biodone(bp);
1711 break;
1712 }
1713 case CD_CCB_PROBE:
1714 {
1715 struct scsi_read_capacity_data *rdcap;
1716 char announce_buf[120]; /*
1717 * Currently (9/30/97) the
1718 * longest possible announce
1719 * buffer is 108 bytes, for the
1720 * first error case below.
1721 * That is 39 bytes for the
1722 * basic string, 16 bytes for the
1723 * biggest sense key (hardware
1724 * error), 52 bytes for the
1725 * text of the largest sense
1726 * qualifier valid for a CDROM,
1727 * (0x72, 0x03 or 0x04,
1728 * 0x03), and one byte for the
1729 * null terminating character.
1730 * To allow for longer strings,
1731 * the announce buffer is 120
1732 * bytes.
1733 */
1734 struct cd_params *cdp;
1735
1736 cdp = &softc->params;
1737
1738 rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1739
1740 cdp->disksize = scsi_4btoul (rdcap->addr) + 1;
1741 cdp->blksize = scsi_4btoul (rdcap->length);
1742
1743 if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1744
1745 snprintf(announce_buf, sizeof(announce_buf),
1746 "cd present [%lu x %lu byte records]",
1747 cdp->disksize, (u_long)cdp->blksize);
1748
1749 } else {
1750 int error;
1751 /*
1752 * Retry any UNIT ATTENTION type errors. They
1753 * are expected at boot.
1754 */
1755 error = cderror(done_ccb, 0, SF_RETRY_UA |
1756 SF_NO_PRINT | SF_RETRY_SELTO);
1757 if (error == ERESTART) {
1758 /*
1759 * A retry was scheuled, so
1760 * just return.
1761 */
1762 return;
1763 } else if (error != 0) {
1764
1765 struct scsi_sense_data *sense;
1766 int asc, ascq;
1767 int sense_key, error_code;
1768 int have_sense;
1769 cam_status status;
1770 struct ccb_getdev cgd;
1771
1772 /* Don't wedge this device's queue */
1773 cam_release_devq(done_ccb->ccb_h.path,
1774 /*relsim_flags*/0,
1775 /*reduction*/0,
1776 /*timeout*/0,
1777 /*getcount_only*/0);
1778
1779 status = done_ccb->ccb_h.status;
1780
1781 xpt_setup_ccb(&cgd.ccb_h,
1782 done_ccb->ccb_h.path,
1783 /* priority */ 1);
1784 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1785 xpt_action((union ccb *)&cgd);
1786
1787 if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1788 || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1789 || ((status & CAM_AUTOSNS_VALID) == 0))
1790 have_sense = FALSE;
1791 else
1792 have_sense = TRUE;
1793
1794 if (have_sense) {
1795 sense = &csio->sense_data;
1796 scsi_extract_sense(sense, &error_code,
1797 &sense_key,
1798 &asc, &ascq);
1799 }
1800 /*
1801 * Attach to anything that claims to be a
1802 * CDROM or WORM device, as long as it
1803 * doesn't return a "Logical unit not
1804 * supported" (0x25) error.
1805 */
1806 if ((have_sense) && (asc != 0x25)
1807 && (error_code == SSD_CURRENT_ERROR))
1808 snprintf(announce_buf,
1809 sizeof(announce_buf),
1810 "Attempt to query device "
1811 "size failed: %s, %s",
1812 scsi_sense_key_text[sense_key],
1813 scsi_sense_desc(asc,ascq,
1814 &cgd.inq_data));
1815 else if ((have_sense == 0)
1816 && ((status & CAM_STATUS_MASK) ==
1817 CAM_SCSI_STATUS_ERROR)
1818 && (csio->scsi_status ==
1819 SCSI_STATUS_BUSY)) {
1820 snprintf(announce_buf,
1821 sizeof(announce_buf),
1822 "Attempt to query device "
1823 "size failed: SCSI status: BUSY");
1824 } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) {
1825 /*
1826 * We only print out an error for
1827 * CDROM type devices. For WORM
1828 * devices, we don't print out an
1829 * error since a few WORM devices
1830 * don't support CDROM commands.
1831 * If we have sense information, go
1832 * ahead and print it out.
1833 * Otherwise, just say that we
1834 * couldn't attach.
1835 */
1836
1837 /*
1838 * Just print out the error, not
1839 * the full probe message, when we
1840 * don't attach.
1841 */
1842 if (have_sense)
1843 scsi_sense_print(
1844 &done_ccb->csio);
1845 else {
1846 xpt_print_path(periph->path);
1847 printf("got CAM status %#x\n",
1848 done_ccb->ccb_h.status);
1849 }
1850 xpt_print_path(periph->path);
1851 printf("fatal error, failed"
1852 " to attach to device\n");
1853
1854 /*
1855 * Invalidate this peripheral.
1856 */
1857 cam_periph_invalidate(periph);
1858
1859 announce_buf[0] = '\0';
1860 } else {
1861
1862 /*
1863 * Invalidate this peripheral.
1864 */
1865 cam_periph_invalidate(periph);
1866 announce_buf[0] = '\0';
1867 }
1868 }
1869 }
1870 free(rdcap, M_TEMP);
1871 if (announce_buf[0] != '\0') {
1872 xpt_announce_periph(periph, announce_buf);
1873 if (softc->flags & CD_FLAG_CHANGER)
1874 cdchangerschedule(softc);
62ade751
MD
1875 /*
1876 * Create our sysctl variables, now that we know
1877 * we have successfully attached.
1878 */
1879 taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
984263bc
MD
1880 }
1881 softc->state = CD_STATE_NORMAL;
1882 /*
1883 * Since our peripheral may be invalidated by an error
1884 * above or an external event, we must release our CCB
1885 * before releasing the probe lock on the peripheral.
1886 * The peripheral will only go away once the last lock
1887 * is removed, and we need it around for the CCB release
1888 * operation.
1889 */
1890 xpt_release_ccb(done_ccb);
1891 cam_periph_unlock(periph);
1892 return;
1893 }
1894 case CD_CCB_WAITING:
1895 {
1896 /* Caller will release the CCB */
1897 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1898 ("trying to wakeup ccbwait\n"));
1899
1900 wakeup(&done_ccb->ccb_h.cbfcnp);
1901 return;
1902 }
1903 default:
1904 break;
1905 }
1906 xpt_release_ccb(done_ccb);
1907}
1908
62ade751
MD
1909static union cd_pages *
1910cdgetpage(struct cd_mode_params *mode_params)
1911{
1912 union cd_pages *page;
1913
1914 if (mode_params->cdb_size == 10)
1915 page = (union cd_pages *)find_mode_page_10(
1916 (struct scsi_mode_header_10 *)mode_params->mode_buf);
1917 else
1918 page = (union cd_pages *)find_mode_page_6(
1919 (struct scsi_mode_header_6 *)mode_params->mode_buf);
1920
1921 return (page);
1922}
1923
1924static int
1925cdgetpagesize(int page_num)
1926{
1927 int i;
1928
1929 for (i = 0; i < (sizeof(cd_page_size_table)/
1930 sizeof(cd_page_size_table[0])); i++) {
1931 if (cd_page_size_table[i].page == page_num)
1932 return (cd_page_size_table[i].page_size);
1933 }
1934 return (-1);
1935}
1936
984263bc 1937static int
41c20dac 1938cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
984263bc
MD
1939{
1940
1941 struct cam_periph *periph;
1942 struct cd_softc *softc;
1943 int error, unit;
1944
1945 unit = dkunit(dev);
1946
1947 periph = cam_extend_get(cdperiphs, unit);
1948 if (periph == NULL)
1949 return(ENXIO);
1950
1951 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n"));
1952
1953 softc = (struct cd_softc *)periph->softc;
1954
1955 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1956 ("trying to do ioctl %#lx\n", cmd));
1957
377d4740 1958 error = cam_periph_lock(periph, PCATCH);
984263bc
MD
1959
1960 if (error != 0)
1961 return(error);
1962
62ade751
MD
1963 /*
1964 * If we don't have media loaded, check for it. If still don't
1965 * have media loaded, we can only do a load or eject.
1966 */
1967 if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
1968 && ((cmd != CDIOCCLOSE)
1969 && (cmd != CDIOCEJECT))) {
1970 error = cdcheckmedia(periph);
1971 if (error != 0) {
1972 cam_periph_unlock(periph);
1973 return (error);
1974 }
1975 }
1976
984263bc
MD
1977 switch (cmd) {
1978
1979 case CDIOCPLAYTRACKS:
1980 {
1981 struct ioc_play_track *args
1982 = (struct ioc_play_track *) addr;
62ade751
MD
1983 struct cd_mode_params params;
1984 union cd_pages *page;
984263bc 1985
62ade751
MD
1986 params.alloc_len = sizeof(union cd_mode_data_6_10);
1987 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 1988 M_WAITOK | M_ZERO);
984263bc
MD
1989
1990 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1991 ("trying to do CDIOCPLAYTRACKS\n"));
1992
62ade751 1993 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 1994 if (error) {
62ade751 1995 free(params.mode_buf, M_TEMP);
984263bc
MD
1996 break;
1997 }
62ade751
MD
1998 page = cdgetpage(&params);
1999
2000 page->audio.flags &= ~CD_PA_SOTC;
2001 page->audio.flags |= CD_PA_IMMED;
2002 error = cdsetmode(periph, &params);
2003 free(params.mode_buf, M_TEMP);
984263bc
MD
2004 if (error)
2005 break;
62ade751
MD
2006
2007 /*
2008 * This was originally implemented with the PLAY
2009 * AUDIO TRACK INDEX command, but that command was
2010 * deprecated after SCSI-2. Most (all?) SCSI CDROM
2011 * drives support it but ATAPI and ATAPI-derivative
2012 * drives don't seem to support it. So we keep a
2013 * cache of the table of contents and translate
2014 * track numbers to MSF format.
2015 */
2016 if (softc->flags & CD_FLAG_VALID_TOC) {
2017 union msf_lba *sentry, *eentry;
2018 int st, et;
2019
2020 if (args->end_track <
2021 softc->toc.header.ending_track + 1)
2022 args->end_track++;
2023 if (args->end_track >
2024 softc->toc.header.ending_track + 1)
2025 args->end_track =
2026 softc->toc.header.ending_track + 1;
2027 st = args->start_track -
2028 softc->toc.header.starting_track;
2029 et = args->end_track -
2030 softc->toc.header.starting_track;
2031 if ((st < 0)
2032 || (et < 0)
2033 || (st > (softc->toc.header.ending_track -
2034 softc->toc.header.starting_track))) {
2035 error = EINVAL;
2036 break;
2037 }
2038 sentry = &softc->toc.entries[st].addr;
2039 eentry = &softc->toc.entries[et].addr;
2040 error = cdplaymsf(periph,
2041 sentry->msf.minute,
2042 sentry->msf.second,
2043 sentry->msf.frame,
2044 eentry->msf.minute,
2045 eentry->msf.second,
2046 eentry->msf.frame);
2047 } else {
2048 /*
2049 * If we don't have a valid TOC, try the
2050 * play track index command. It is part of
2051 * the SCSI-2 spec, but was removed in the
2052 * MMC specs. ATAPI and ATAPI-derived
2053 * drives don't support it.
2054 */
2055 if (softc->quirks & CD_Q_BCD_TRACKS) {
2056 args->start_track =
2057 bin2bcd(args->start_track);
2058 args->end_track =
2059 bin2bcd(args->end_track);
2060 }
2061 error = cdplaytracks(periph,
2062 args->start_track,
2063 args->start_index,
2064 args->end_track,
2065 args->end_index);
984263bc 2066 }
984263bc
MD
2067 }
2068 break;
2069 case CDIOCPLAYMSF:
2070 {
2071 struct ioc_play_msf *args
2072 = (struct ioc_play_msf *) addr;
62ade751
MD
2073 struct cd_mode_params params;
2074 union cd_pages *page;
984263bc 2075
62ade751
MD
2076 params.alloc_len = sizeof(union cd_mode_data_6_10);
2077 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2078 M_WAITOK | M_ZERO);
984263bc
MD
2079
2080 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2081 ("trying to do CDIOCPLAYMSF\n"));
2082
62ade751 2083 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2084 if (error) {
62ade751 2085 free(params.mode_buf, M_TEMP);
984263bc
MD
2086 break;
2087 }
62ade751
MD
2088 page = cdgetpage(&params);
2089
2090 page->audio.flags &= ~CD_PA_SOTC;
2091 page->audio.flags |= CD_PA_IMMED;
2092 error = cdsetmode(periph, &params);
2093 free(params.mode_buf, M_TEMP);
984263bc
MD
2094 if (error)
2095 break;
2096 error = cdplaymsf(periph,
2097 args->start_m,
2098 args->start_s,
2099 args->start_f,
2100 args->end_m,
2101 args->end_s,
2102 args->end_f);
2103 }
2104 break;
2105 case CDIOCPLAYBLOCKS:
2106 {
2107 struct ioc_play_blocks *args
2108 = (struct ioc_play_blocks *) addr;
62ade751
MD
2109 struct cd_mode_params params;
2110 union cd_pages *page;
984263bc
MD
2111
2112 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2113 ("trying to do CDIOCPLAYBLOCKS\n"));
2114
62ade751
MD
2115 params.alloc_len = sizeof(union cd_mode_data_6_10);
2116 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2117 M_WAITOK | M_ZERO);
984263bc 2118
62ade751 2119 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2120 if (error) {
62ade751 2121 free(params.mode_buf, M_TEMP);
984263bc
MD
2122 break;
2123 }
62ade751
MD
2124 page = cdgetpage(&params);
2125
2126 page->audio.flags &= ~CD_PA_SOTC;
2127 page->audio.flags |= CD_PA_IMMED;
2128 error = cdsetmode(periph, &params);
2129 free(params.mode_buf, M_TEMP);
984263bc
MD
2130 if (error)
2131 break;
2132 error = cdplay(periph, args->blk, args->len);
2133 }
2134 break;
2135 case CDIOCREADSUBCHANNEL:
2136 {
2137 struct ioc_read_subchannel *args
2138 = (struct ioc_read_subchannel *) addr;
2139 struct cd_sub_channel_info *data;
2140 u_int32_t len = args->data_len;
2141
2142 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2143 ("trying to do CDIOCREADSUBCHANNEL\n"));
2144
2145 data = malloc(sizeof(struct cd_sub_channel_info),
ad86f6b6 2146 M_TEMP, M_WAITOK);
984263bc
MD
2147
2148 if ((len > sizeof(struct cd_sub_channel_info)) ||
2149 (len < sizeof(struct cd_sub_channel_header))) {
2150 printf(
2151 "scsi_cd: cdioctl: "
2152 "cdioreadsubchannel: error, len=%d\n",
2153 len);
2154 error = EINVAL;
2155 free(data, M_TEMP);
2156 break;
2157 }
2158
2159 if (softc->quirks & CD_Q_BCD_TRACKS)
2160 args->track = bin2bcd(args->track);
2161
2162 error = cdreadsubchannel(periph, args->address_format,
2163 args->data_format, args->track, data, len);
2164
2165 if (error) {
2166 free(data, M_TEMP);
2167 break;
2168 }
2169 if (softc->quirks & CD_Q_BCD_TRACKS)
2170 data->what.track_info.track_number =
2171 bcd2bin(data->what.track_info.track_number);
2172 len = min(len, ((data->header.data_len[0] << 8) +
2173 data->header.data_len[1] +
2174 sizeof(struct cd_sub_channel_header)));
2175 if (copyout(data, args->data, len) != 0) {
2176 error = EFAULT;
2177 }
2178 free(data, M_TEMP);
2179 }
2180 break;
2181
2182 case CDIOREADTOCHEADER:
2183 {
2184 struct ioc_toc_header *th;
2185
2186 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2187 ("trying to do CDIOREADTOCHEADER\n"));
2188
2189 th = malloc(sizeof(struct ioc_toc_header), M_TEMP,
ad86f6b6 2190 M_WAITOK);
62ade751
MD
2191 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2192 sizeof (*th), /*sense_flags*/0);
984263bc
MD
2193 if (error) {
2194 free(th, M_TEMP);
2195 break;
2196 }
2197 if (softc->quirks & CD_Q_BCD_TRACKS) {
2198 /* we are going to have to convert the BCD
2199 * encoding on the cd to what is expected
2200 */
2201 th->starting_track =
2202 bcd2bin(th->starting_track);
2203 th->ending_track = bcd2bin(th->ending_track);
2204 }
3c81cebc 2205 th->len = ntohs(th->len);
984263bc
MD
2206 bcopy(th, addr, sizeof(*th));
2207 free(th, M_TEMP);
2208 }
2209 break;
2210 case CDIOREADTOCENTRYS:
2211 {
62ade751
MD
2212 struct cd_tocdata *data;
2213 struct cd_toc_single *lead;
984263bc
MD
2214 struct ioc_read_toc_entry *te =
2215 (struct ioc_read_toc_entry *) addr;
2216 struct ioc_toc_header *th;
2217 u_int32_t len, readlen, idx, num;
2218 u_int32_t starting_track = te->starting_track;
2219
2220 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2221 ("trying to do CDIOREADTOCENTRYS\n"));
2222
ad86f6b6
MD
2223 data = malloc(sizeof(*data), M_TEMP, M_WAITOK);
2224 lead = malloc(sizeof(*lead), M_TEMP, M_WAITOK);
984263bc
MD
2225
2226 if (te->data_len < sizeof(struct cd_toc_entry)
2227 || (te->data_len % sizeof(struct cd_toc_entry)) != 0
2228 || (te->address_format != CD_MSF_FORMAT
2229 && te->address_format != CD_LBA_FORMAT)) {
2230 error = EINVAL;
2231 printf("scsi_cd: error in readtocentries, "
2232 "returning EINVAL\n");
2233 free(data, M_TEMP);
2234 free(lead, M_TEMP);
2235 break;
2236 }
2237
2238 th = &data->header;
62ade751
MD
2239 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2240 sizeof (*th), /*sense_flags*/0);
984263bc
MD
2241 if (error) {
2242 free(data, M_TEMP);
2243 free(lead, M_TEMP);
2244 break;
2245 }
2246
2247 if (softc->quirks & CD_Q_BCD_TRACKS) {
2248 /* we are going to have to convert the BCD
2249 * encoding on the cd to what is expected
2250 */
2251 th->starting_track =
2252 bcd2bin(th->starting_track);
2253 th->ending_track = bcd2bin(th->ending_track);
2254 }
2255
2256 if (starting_track == 0)
2257 starting_track = th->starting_track;
2258 else if (starting_track == LEADOUT)
2259 starting_track = th->ending_track + 1;
2260 else if (starting_track < th->starting_track ||
2261 starting_track > th->ending_track + 1) {
2262 printf("scsi_cd: error in readtocentries, "
2263 "returning EINVAL\n");
2264 free(data, M_TEMP);
2265 free(lead, M_TEMP);
2266 error = EINVAL;
2267 break;
2268 }
2269
2270 /* calculate reading length without leadout entry */
2271 readlen = (th->ending_track - starting_track + 1) *
2272 sizeof(struct cd_toc_entry);
2273
2274 /* and with leadout entry */
2275 len = readlen + sizeof(struct cd_toc_entry);
2276 if (te->data_len < len) {
2277 len = te->data_len;
2278 if (readlen > len)
2279 readlen = len;
2280 }
2281 if (len > sizeof(data->entries)) {
2282 printf("scsi_cd: error in readtocentries, "
2283 "returning EINVAL\n");
2284 error = EINVAL;
2285 free(data, M_TEMP);
2286 free(lead, M_TEMP);
2287 break;
2288 }
2289 num = len / sizeof(struct cd_toc_entry);
2290
2291 if (readlen > 0) {
2292 error = cdreadtoc(periph, te->address_format,
2293 starting_track,
62ade751
MD
2294 (u_int8_t *)data,
2295 readlen + sizeof (*th),
2296 /*sense_flags*/0);
984263bc
MD
2297 if (error) {
2298 free(data, M_TEMP);
2299 free(lead, M_TEMP);
2300 break;
2301 }
2302 }
2303
2304 /* make leadout entry if needed */
2305 idx = starting_track + num - 1;
2306 if (softc->quirks & CD_Q_BCD_TRACKS)
2307 th->ending_track = bcd2bin(th->ending_track);
2308 if (idx == th->ending_track + 1) {
2309 error = cdreadtoc(periph, te->address_format,
62ade751
MD
2310 LEADOUT, (u_int8_t *)lead,
2311 sizeof(*lead),
2312 /*sense_flags*/0);
984263bc
MD
2313 if (error) {
2314 free(data, M_TEMP);
2315 free(lead, M_TEMP);
2316 break;
2317 }
2318 data->entries[idx - starting_track] =
2319 lead->entry;
2320 }
2321 if (softc->quirks & CD_Q_BCD_TRACKS) {
2322 for (idx = 0; idx < num - 1; idx++) {
2323 data->entries[idx].track =
2324 bcd2bin(data->entries[idx].track);
2325 }
2326 }
2327
2328 error = copyout(data->entries, te->data, len);
2329 free(data, M_TEMP);
2330 free(lead, M_TEMP);
2331 }
2332 break;
2333 case CDIOREADTOCENTRY:
2334 {
62ade751 2335 struct cd_toc_single *data;
984263bc
MD
2336 struct ioc_read_toc_single_entry *te =
2337 (struct ioc_read_toc_single_entry *) addr;
2338 struct ioc_toc_header *th;
2339 u_int32_t track;
2340
2341 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2342 ("trying to do CDIOREADTOCENTRY\n"));
2343
ad86f6b6 2344 data = malloc(sizeof(*data), M_TEMP, M_WAITOK);
984263bc
MD
2345
2346 if (te->address_format != CD_MSF_FORMAT
2347 && te->address_format != CD_LBA_FORMAT) {
2348 printf("error in readtocentry, "
2349 " returning EINVAL\n");
2350 free(data, M_TEMP);
2351 error = EINVAL;
2352 break;
2353 }
2354
2355 th = &data->header;
62ade751
MD
2356 error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2357 sizeof (*th), /*sense_flags*/0);
984263bc
MD
2358 if (error) {
2359 free(data, M_TEMP);
2360 break;
2361 }
2362
2363 if (softc->quirks & CD_Q_BCD_TRACKS) {
2364 /* we are going to have to convert the BCD
2365 * encoding on the cd to what is expected
2366 */
2367 th->starting_track =
2368 bcd2bin(th->starting_track);
2369 th->ending_track = bcd2bin(th->ending_track);
2370 }
2371 track = te->track;
2372 if (track == 0)
2373 track = th->starting_track;
2374 else if (track == LEADOUT)
2375 /* OK */;
2376 else if (track < th->starting_track ||
2377 track > th->ending_track + 1) {
2378 printf("error in readtocentry, "
2379 " returning EINVAL\n");
2380 free(data, M_TEMP);
2381 error = EINVAL;
2382 break;
2383 }
2384
2385 error = cdreadtoc(periph, te->address_format, track,
62ade751
MD
2386 (u_int8_t *)data, sizeof(*data),
2387 /*sense_flags*/0);
984263bc
MD
2388 if (error) {
2389 free(data, M_TEMP);
2390 break;
2391 }
2392
2393 if (softc->quirks & CD_Q_BCD_TRACKS)
2394 data->entry.track = bcd2bin(data->entry.track);
2395 bcopy(&data->entry, &te->entry,
2396 sizeof(struct cd_toc_entry));
2397 free(data, M_TEMP);
2398 }
2399 break;
2400 case CDIOCSETPATCH:
2401 {
62ade751
MD
2402 struct ioc_patch *arg = (struct ioc_patch *)addr;
2403 struct cd_mode_params params;
2404 union cd_pages *page;
984263bc
MD
2405
2406 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2407 ("trying to do CDIOCSETPATCH\n"));
2408
62ade751
MD
2409 params.alloc_len = sizeof(union cd_mode_data_6_10);
2410 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2411 M_WAITOK | M_ZERO);
62ade751 2412 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2413 if (error) {
62ade751 2414 free(params.mode_buf, M_TEMP);
984263bc
MD
2415 break;
2416 }
62ade751
MD
2417 page = cdgetpage(&params);
2418
2419 page->audio.port[LEFT_PORT].channels =
984263bc 2420 arg->patch[0];
62ade751 2421 page->audio.port[RIGHT_PORT].channels =
984263bc 2422 arg->patch[1];
62ade751
MD
2423 page->audio.port[2].channels = arg->patch[2];
2424 page->audio.port[3].channels = arg->patch[3];
2425 error = cdsetmode(periph, &params);
2426 free(params.mode_buf, M_TEMP);
984263bc
MD
2427 }
2428 break;
2429 case CDIOCGETVOL:
2430 {
2431 struct ioc_vol *arg = (struct ioc_vol *) addr;
62ade751
MD
2432 struct cd_mode_params params;
2433 union cd_pages *page;
984263bc
MD
2434
2435 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2436 ("trying to do CDIOCGETVOL\n"));
2437
62ade751
MD
2438 params.alloc_len = sizeof(union cd_mode_data_6_10);
2439 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2440 M_WAITOK | M_ZERO);
62ade751 2441 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2442 if (error) {
62ade751 2443 free(params.mode_buf, M_TEMP);
984263bc
MD
2444 break;
2445 }
62ade751
MD
2446 page = cdgetpage(&params);
2447
984263bc 2448 arg->vol[LEFT_PORT] =
62ade751 2449 page->audio.port[LEFT_PORT].volume;
984263bc 2450 arg->vol[RIGHT_PORT] =
62ade751
MD
2451 page->audio.port[RIGHT_PORT].volume;
2452 arg->vol[2] = page->audio.port[2].volume;
2453 arg->vol[3] = page->audio.port[3].volume;
2454 free(params.mode_buf, M_TEMP);
984263bc
MD
2455 }
2456 break;
2457 case CDIOCSETVOL:
2458 {
2459 struct ioc_vol *arg = (struct ioc_vol *) addr;
62ade751
MD
2460 struct cd_mode_params params;
2461 union cd_pages *page;
984263bc
MD
2462
2463 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2464 ("trying to do CDIOCSETVOL\n"));
2465
62ade751
MD
2466 params.alloc_len = sizeof(union cd_mode_data_6_10);
2467 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2468 M_WAITOK | M_ZERO);
62ade751 2469 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2470 if (error) {
62ade751 2471 free(params.mode_buf, M_TEMP);
984263bc
MD
2472 break;
2473 }
62ade751
MD
2474 page = cdgetpage(&params);
2475
2476 page->audio.port[LEFT_PORT].channels = CHANNEL_0;
2477 page->audio.port[LEFT_PORT].volume =
984263bc 2478 arg->vol[LEFT_PORT];
62ade751
MD
2479 page->audio.port[RIGHT_PORT].channels = CHANNEL_1;
2480 page->audio.port[RIGHT_PORT].volume =
984263bc 2481 arg->vol[RIGHT_PORT];
62ade751
MD
2482 page->audio.port[2].volume = arg->vol[2];
2483 page->audio.port[3].volume = arg->vol[3];
2484 error = cdsetmode(periph, &params);
2485 free(params.mode_buf, M_TEMP);
984263bc
MD
2486 }
2487 break;
2488 case CDIOCSETMONO:
2489 {
62ade751
MD
2490 struct cd_mode_params params;
2491 union cd_pages *page;
984263bc
MD
2492
2493 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2494 ("trying to do CDIOCSETMONO\n"));
2495
62ade751
MD
2496 params.alloc_len = sizeof(union cd_mode_data_6_10);
2497 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2498 M_WAITOK | M_ZERO);
62ade751 2499 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2500 if (error) {
62ade751 2501 free(params.mode_buf, M_TEMP);
984263bc
MD
2502 break;
2503 }
62ade751
MD
2504 page = cdgetpage(&params);
2505
2506 page->audio.port[LEFT_PORT].channels =
984263bc 2507 LEFT_CHANNEL | RIGHT_CHANNEL;
62ade751 2508 page->audio.port[RIGHT_PORT].channels =
984263bc 2509 LEFT_CHANNEL | RIGHT_CHANNEL;
62ade751
MD
2510 page->audio.port[2].channels = 0;
2511 page->audio.port[3].channels = 0;
2512 error = cdsetmode(periph, &params);
2513 free(params.mode_buf, M_TEMP);
984263bc
MD
2514 }
2515 break;
2516 case CDIOCSETSTEREO:
2517 {
62ade751
MD
2518 struct cd_mode_params params;
2519 union cd_pages *page;
984263bc
MD
2520
2521 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2522 ("trying to do CDIOCSETSTEREO\n"));
2523
62ade751
MD
2524 params.alloc_len = sizeof(union cd_mode_data_6_10);
2525 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2526 M_WAITOK | M_ZERO);
62ade751 2527 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2528 if (error) {
62ade751 2529 free(params.mode_buf, M_TEMP);
984263bc
MD
2530 break;
2531 }
62ade751
MD
2532 page = cdgetpage(&params);
2533
2534 page->audio.port[LEFT_PORT].channels =
984263bc 2535 LEFT_CHANNEL;
62ade751 2536 page->audio.port[RIGHT_PORT].channels =
984263bc 2537 RIGHT_CHANNEL;
62ade751
MD
2538 page->audio.port[2].channels = 0;
2539 page->audio.port[3].channels = 0;
2540 error = cdsetmode(periph, &params);
2541 free(params.mode_buf, M_TEMP);
984263bc
MD
2542 }
2543 break;
2544 case CDIOCSETMUTE:
2545 {
62ade751
MD
2546 struct cd_mode_params params;
2547 union cd_pages *page;
984263bc
MD
2548
2549 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2550 ("trying to do CDIOCSETMUTE\n"));
2551
62ade751
MD
2552 params.alloc_len = sizeof(union cd_mode_data_6_10);
2553 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2554 M_WAITOK | M_ZERO);
62ade751 2555 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2556 if (error) {
62ade751 2557 free(&params, M_TEMP);
984263bc
MD
2558 break;
2559 }
62ade751
MD
2560 page = cdgetpage(&params);
2561
2562 page->audio.port[LEFT_PORT].channels = 0;
2563 page->audio.port[RIGHT_PORT].channels = 0;
2564 page->audio.port[2].channels = 0;
2565 page->audio.port[3].channels = 0;
2566 error = cdsetmode(periph, &params);
2567 free(params.mode_buf, M_TEMP);
984263bc
MD
2568 }
2569 break;
2570 case CDIOCSETLEFT:
2571 {
62ade751
MD
2572 struct cd_mode_params params;
2573 union cd_pages *page;
984263bc
MD
2574
2575 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2576 ("trying to do CDIOCSETLEFT\n"));
2577
62ade751
MD
2578 params.alloc_len = sizeof(union cd_mode_data_6_10);
2579 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2580 M_WAITOK | M_ZERO);
62ade751
MD
2581
2582 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2583 if (error) {
62ade751 2584 free(params.mode_buf, M_TEMP);
984263bc
MD
2585 break;
2586 }
62ade751
MD
2587 page = cdgetpage(&params);
2588
2589 page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL;
2590 page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL;
2591 page->audio.port[2].channels = 0;
2592 page->audio.port[3].channels = 0;
2593 error = cdsetmode(periph, &params);
2594 free(params.mode_buf, M_TEMP);
984263bc
MD
2595 }
2596 break;
2597 case CDIOCSETRIGHT:
2598 {
62ade751
MD
2599 struct cd_mode_params params;
2600 union cd_pages *page;
984263bc
MD
2601
2602 CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2603 ("trying to do CDIOCSETRIGHT\n"));
2604
62ade751
MD
2605 params.alloc_len = sizeof(union cd_mode_data_6_10);
2606 params.mode_buf = malloc(params.alloc_len, M_TEMP,
ad86f6b6 2607 M_WAITOK | M_ZERO);
62ade751
MD
2608
2609 error = cdgetmode(periph, &params, AUDIO_PAGE);
984263bc 2610 if (error) {
62ade751 2611 free(params.mode_buf, M_TEMP);
984263bc
MD
2612 break;
2613 }
62ade751
MD
2614 page = cdgetpage(&params);
2615
2616 page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL;
2617 page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL;
2618 page->audio.port[2].channels = 0;
2619 page->audio.port[3].channels = 0;
2620 error = cdsetmode(periph, &params);
2621 free(params.mode_buf, M_TEMP);
984263bc
MD
2622 }
2623 break;
2624 case CDIOCRESUME:
2625 error = cdpause(periph, 1);
2626 break;
2627 case CDIOCPAUSE:
2628 error = cdpause(periph, 0);
2629 break;
2630 case CDIOCSTART:
62ade751
MD
2631 error = cdstartunit(periph, 0);
2632 break;
2633 case CDIOCCLOSE:
2634 error = cdstartunit(periph, 1);
2635
2636#ifdef notyet
2637 if (error != 0)
2638 break;
2639
2640 /*
2641 * The user successfully closed the tray, run
2642 * cdcheckmedia() again so we can re-sync the disklabel
2643 * information.
2644 */
2645 cdcheckmedia(periph);
2646#endif /* notyet */
984263bc
MD
2647 break;
2648 case CDIOCSTOP:
2649 error = cdstopunit(periph, 0);
2650 break;
2651 case CDIOCEJECT:
2652 error = cdstopunit(periph, 1);
62ade751
MD
2653
2654#ifdef notyet
2655 if (error != 0)
2656 break;
2657
2658 /*
2659 * Since we've successfully ejected the media, run
2660 * cdcheckmedia() again so we re-sync the disklabel
2661 * information.
2662 */
2663 cdcheckmedia(periph);
2664#endif /* notyet */
984263bc
MD
2665 break;
2666 case CDIOCALLOW:
2667 cdprevent(periph, PR_ALLOW);
2668 break;
2669 case CDIOCPREVENT:
2670 cdprevent(periph, PR_PREVENT);
2671 break;
2672 case CDIOCSETDEBUG:
2673 /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */
2674 error = ENOTTY;
2675 break;
2676 case CDIOCCLRDEBUG:
2677 /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */
2678 error = ENOTTY;
2679 break;
2680 case CDIOCRESET:
2681 /* return (cd_reset(periph)); */
2682 error = ENOTTY;
2683 break;
2684 case CDRIOCREADSPEED:
2685 error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED);
2686 break;
2687 case CDRIOCWRITESPEED:
2688 error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr);
2689 break;
2690 case DVDIOCSENDKEY:
2691 case DVDIOCREPORTKEY: {
2692 struct dvd_authinfo *authinfo;
2693
2694 authinfo = (struct dvd_authinfo *)addr;
2695
2696 if (cmd == DVDIOCREPORTKEY)
2697 error = cdreportkey(periph, authinfo);
2698 else
2699 error = cdsendkey(periph, authinfo);
2700 break;
2701 }
2702 case DVDIOCREADSTRUCTURE: {
2703 struct dvd_struct *dvdstruct;
2704
2705 dvdstruct = (struct dvd_struct *)addr;
2706
2707 error = cdreaddvdstructure(periph, dvdstruct);
2708
2709 break;
2710 }
2711 default:
2712 error = cam_periph_ioctl(periph, cmd, addr, cderror);
2713 break;
2714 }
2715
2716 cam_periph_unlock(periph);
2717
2718 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n"));
2719
2720 return (error);
2721}
2722
2723static void
2724cdprevent(struct cam_periph *periph, int action)
2725{
2726 union ccb *ccb;
2727 struct cd_softc *softc;
2728 int error;
2729
2730 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n"));
2731
2732 softc = (struct cd_softc *)periph->softc;
2733
2734 if (((action == PR_ALLOW)
2735 && (softc->flags & CD_FLAG_DISC_LOCKED) == 0)
2736 || ((action == PR_PREVENT)
2737 && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) {
2738 return;
2739 }
2740
2741 ccb = cdgetccb(periph, /* priority */ 1);
2742
2743 scsi_prevent(&ccb->csio,
2744 /*retries*/ 1,
2745 cddone,
2746 MSG_SIMPLE_Q_TAG,
2747 action,
2748 SSD_FULL_SIZE,
2749 /* timeout */60000);
2750
2751 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
2752 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT|SF_RETRY_SELTO);
2753
2754 xpt_release_ccb(ccb);
2755
2756 if (error == 0) {
2757 if (action == PR_ALLOW)
2758 softc->flags &= ~CD_FLAG_DISC_LOCKED;
2759 else
2760 softc->flags |= CD_FLAG_DISC_LOCKED;
2761 }
2762}
2763
62ade751
MD
2764int
2765cdcheckmedia(struct cam_periph *periph)
2766{
2767 struct cd_softc *softc;
2768 struct ioc_toc_header *toch;
2769 struct cd_toc_single leadout;
2770 struct ccb_getdev cgd;
2771 u_int32_t size, toclen;
2772 int error, num_entries, cdindex;
2773 int first_track_audio;
2774 struct disklabel *label;
2775
2776 softc = (struct cd_softc *)periph->softc;
2777
2778 first_track_audio = -1;
2779 error = 0;
2780
2781 cdprevent(periph, PR_PREVENT);
2782
2783 /*
2784 * Build prototype label for whole disk.
2785 * Should take information about different data tracks from the
2786 * TOC and put it in the partition table.
2787 */
2788 label = &softc->disk.d_label;
2789 bzero(label, sizeof(*label));
2790 label->d_type = DTYPE_SCSI;
2791
2792 /*
2793 * Grab the inquiry data to get the vendor and product names.
2794 * Put them in the typename and packname for the label.
2795 */
2796 xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1);
2797 cgd.ccb_h.func_code = XPT_GDEV_TYPE;
2798 xpt_action((union ccb *)&cgd);
2799
2800 strncpy(label->d_typename, cgd.inq_data.vendor,
2801 min(SID_VENDOR_SIZE, sizeof(label->d_typename)));
2802 strncpy(label->d_packname, cgd.inq_data.product,
2803 min(SID_PRODUCT_SIZE, sizeof(label->d_packname)));
2804
2805 label->d_flags = D_REMOVABLE;
2806 /*
2807 * Make partition 'a' cover the whole disk. This is a temporary
2808 * compatibility hack. The 'a' partition should not exist, so
2809 * the slice code won't create it. The slice code will make
2810 * partition (RAW_PART + 'a') cover the whole disk and fill in
2811 * some more defaults.
2812 */
2813 label->d_partitions[0].p_size = label->d_secperunit;
2814 label->d_partitions[0].p_fstype = FS_OTHER;
2815
2816 /*
2817 * Default to not reading the disklabel off the disk, until we can
2818 * verify that we have media, that we have a table of contents, and
2819 * that the first track is a data track (which could theoretically
2820 * contain a disklabel).
2821 */
2822 softc->disk.d_dsflags &= ~DSO_COMPATLABEL;
2823 softc->disk.d_dsflags |= DSO_NOLABELS;
2824
2825 /*
2826 * Clear the valid media and TOC flags until we've verified that we
2827 * have both.
2828 */
2829 softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
2830
2831 /*
2832 * Get the disc size and block size. If we can't get it, we don't
2833 * have media, most likely.
2834 */
2835 if ((error = cdsize(periph, &size)) != 0) {
2836 /*
2837 * Set a bogus sector size, so the slice code won't try to
2838 * divide by 0 and panic the kernel.
2839 */
2840 label->d_secsize = 2048;
2841
2842 label->d_secperunit = 0;
2843
2844 /*
2845 * XXX KDM is this a good idea? Seems to cause more
2846 * problems.
2847 */
2848 if (softc->flags & CD_FLAG_OPEN) {
2849 int force;
2850
2851 force = 1;
2852
2853 /*
2854 * We don't bother checking the return value here,
2855 * since we already have an error...
2856 */
e4c9c0c8 2857 dsioctl(softc->disk.d_cdev, DIOCSYNCSLICEINFO,
62ade751
MD
2858 /*data*/(caddr_t)&force, /*flags*/ 0,
2859 &softc->disk.d_slice);
2860 }
2861
2862 /*
2863 * Tell devstat(9) we don't have a blocksize.
2864 */
2865 softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE;
2866
2867 cdprevent(periph, PR_ALLOW);
2868
2869 return (error);
2870 } else {
2871
2872 label->d_secsize = softc->params.blksize;
2873 label->d_secperunit = softc->params.disksize;
2874
2875 /*
2876 * Force a re-sync of slice information, like the blocksize,
2877 * now that we know it. It isn't pretty...but according to
2878 * Bruce Evans, this is probably the best way to do it in
2879 * -stable. We only do this if we're already open, and
2880 * therefore dsopen() has already run. If CD_FLAG_OPEN
2881 * isn't set, this isn't necessary.
2882 */
2883 if (softc->flags & CD_FLAG_OPEN) {
2884 int force;
2885
2886 force = 1;
2887
e4c9c0c8 2888 error = dsioctl(softc->disk.d_cdev, DIOCSYNCSLICEINFO,
62ade751
MD
2889 /*data*/(caddr_t)&force, /*flags*/ 0,
2890 &softc->disk.d_slice);
2891 if (error != 0) {
2892 /*
2893 * Set a bogus sector size, so the slice code
2894 * won't try to divide by 0 and panic the
2895 * kernel.
2896 */
2897 label->d_secsize = 2048;
2898
2899 label->d_secperunit = 0;
2900
2901 /*
2902 * Tell devstat(9) we don't have a blocksize.
2903 */
2904 softc->device_stats.flags |=
2905 DEVSTAT_BS_UNAVAILABLE;
2906
2907 cdprevent(periph, PR_ALLOW);
2908 }
2909 }
2910
2911 /*
2912 * We unconditionally (re)set the blocksize each time the
2913 * CD device is opened. This is because the CD can change,
2914 * and therefore the blocksize might change.
2915 * XXX problems here if some slice or partition is still
2916 * open with the old size?
2917 */
2918 if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0)
2919 softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE;
2920 softc->device_stats.block_size = softc->params.blksize;
2921
2922 softc->flags |= CD_FLAG_VALID_MEDIA;
2923 }
2924
2925 /*
2926 * Now we check the table of contents. This (currently) is only
2927 * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do
2928 * things like present a separate entry in /dev for each track,
2929 * like that acd(4) driver does.
2930 */
2931 bzero(&softc->toc, sizeof(softc->toc));
2932 toch = &softc->toc.header;
2933
2934 /*
2935 * We will get errors here for media that doesn't have a table of
2936 * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP
2937 * command is presented for a DDCD/CD-R/RW media, where the first TOC
2938 * has not been recorded (no complete session) and the Format codes
2939 * 0000b, 0001b, or 0010b are specified, this command shall be rejected
2940 * with an INVALID FIELD IN CDB. Devices that are not capable of
2941 * reading an incomplete session on DDC/CD-R/RW media shall report
2942 * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
2943 *
2944 * So this isn't fatal if we can't read the table of contents, it
2945 * just means that the user won't be able to issue the play tracks
2946 * ioctl, and likely lots of other stuff won't work either. They
2947 * need to burn the CD before we can do a whole lot with it. So
2948 * we don't print anything here if we get an error back.
2949 */
2950 error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch),
2951 SF_NO_PRINT);
2952 /*
2953 * Errors in reading the table of contents aren't fatal, we just
2954 * won't have a valid table of contents cached.
2955 */
2956 if (error != 0) {
2957 error = 0;
2958 bzero(&softc->toc, sizeof(softc->toc));
2959 goto bailout;
2960 }
2961
2962 if (softc->quirks & CD_Q_BCD_TRACKS) {
2963 toch->starting_track = bcd2bin(toch->starting_track);
2964 toch->ending_track = bcd2bin(toch->ending_track);
2965 }
2966
2967 /* Number of TOC entries, plus leadout */
2968 num_entries = (toch->ending_track - toch->starting_track) + 2;
2969
2970 if (num_entries <= 0)
2971 goto bailout;
2972
2973 toclen = num_entries * sizeof(struct cd_toc_entry);
2974
2975 error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track,
2976 (u_int8_t *)&softc->toc, toclen + sizeof(*toch),
2977 SF_NO_PRINT);
2978 if (error != 0) {
2979 error = 0;
2980 bzero(&softc->toc, sizeof(softc->toc));
2981 goto bailout;
2982 }
2983
2984 if (softc->quirks & CD_Q_BCD_TRACKS) {
2985 toch->starting_track = bcd2bin(toch->starting_track);
2986 toch->ending_track = bcd2bin(toch->ending_track);
2987 }
2988 toch->len = scsi_2btoul((uint8_t *)&toch->len);
2989
2990 /*
2991 * XXX KDM is this necessary? Probably only if the drive doesn't
2992 * return leadout information with the table of contents.
2993 */
2994 cdindex = toch->starting_track + num_entries -1;
2995 if (cdindex == toch->ending_track + 1) {
2996
2997 error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT,
2998 (u_int8_t *)&leadout, sizeof(leadout),
2999 SF_NO_PRINT);
3000 if (error != 0) {
3001 error = 0;
3002 goto bailout;
3003 }
3004 softc->toc.entries[cdindex - toch->starting_track] =
3005 leadout.entry;
3006 }
3007 if (softc->quirks & CD_Q_BCD_TRACKS) {
3008 for (cdindex = 0; cdindex < (num_entries - 1); cdindex++) {
3009 softc->toc.entries[cdindex].track =
3010 bcd2bin(softc->toc.entries[cdindex].track);
3011 }
3012 }
3013
3014 /*
3015 * Run through the TOC entries, find the first entry and determine
3016 * whether it is an audio or data track.
3017 */
3018 for (cdindex = 0; cdindex < (num_entries - 1); cdindex++) {
3019 if (softc->toc.entries[cdindex].track == toch->starting_track) {
3020 if (softc->toc.entries[cdindex].control & 0x04)
3021 first_track_audio = 0;
3022 else
3023 first_track_audio = 1;
3024 break;
3025 }
3026 }
3027
3028 /*
3029 * If first_track_audio is non-zero, we either have an error (e.g.
3030 * couldn't find the starting track) or the first track is an audio
3031 * track. If first_track_audio is 0, the first track is a data
3032 * track that could have a disklabel. Attempt to read the
3033 * disklabel off the media, just in case the user put one there.
3034 */
3035 if (first_track_audio == 0) {
3036 softc->disk.d_dsflags |= DSO_COMPATLABEL;
3037 softc->disk.d_dsflags &= ~DSO_NOLABELS;
3038 }
3039 softc->flags |= CD_FLAG_VALID_TOC;
3040
3041bailout:
3042 return (error);
3043}
3044
984263bc 3045static int
62ade751 3046cdsize(struct cam_periph *periph, u_int32_t *size)
984263bc 3047{
984263bc
MD
3048 struct cd_softc *softc;
3049 union ccb *ccb;
3050 struct scsi_read_capacity_data *rcap_buf;
3051 int error;
3052
984263bc
MD
3053 CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n"));
3054
3055 softc = (struct cd_softc *)periph->softc;
3056
3057 ccb = cdgetccb(periph, /* priority */ 1);
3058
3059 rcap_buf = malloc(sizeof(struct scsi_read_capacity_data),
898d961b 3060 M_TEMP, M_INTWAIT | M_ZERO);
984263bc
MD
3061
3062 scsi_read_capacity(&ccb->csio,
3063 /*retries*/ 1,
3064 cddone,
3065 MSG_SIMPLE_Q_TAG,
3066 rcap_buf,
3067 SSD_FULL_SIZE,
3068 /* timeout */20000);
3069
3070 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3071 /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT|SF_RETRY_SELTO);
3072
3073 xpt_release_ccb(ccb);
3074
3075 softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1;
3076 softc->params.blksize = scsi_4btoul(rcap_buf->length);
3077 /*
3078 * SCSI-3 mandates that the reported blocksize shall be 2048.
3079 * Older drives sometimes report funny values, trim it down to
3080 * 2048, or other parts of the kernel will get confused.
3081 *
3082 * XXX we leave drives alone that might report 512 bytes, as
3083 * well as drives reporting more weird sizes like perhaps 4K.
3084 */
3085 if (softc->params.blksize > 2048 && softc->params.blksize <= 2352)
3086 softc->params.blksize = 2048;
3087
3088 free(rcap_buf, M_TEMP);
3089 *size = softc->params.disksize;
3090
3091 return (error);
3092
3093}
3094
984263bc 3095static int
62ade751 3096cd6byteworkaround(union ccb *ccb)
984263bc 3097{
62ade751
MD
3098 u_int8_t *cdb;
3099 struct cam_periph *periph;
984263bc 3100 struct cd_softc *softc;
62ade751
MD
3101 struct cd_mode_params *params;
3102 int frozen, found;
984263bc 3103
62ade751 3104 periph = xpt_path_periph(ccb->ccb_h.path);
984263bc
MD
3105 softc = (struct cd_softc *)periph->softc;
3106
62ade751 3107 cdb = ccb->csio.cdb_io.cdb_bytes;
984263bc 3108
62ade751
MD
3109 if ((ccb->ccb_h.flags & CAM_CDB_POINTER)
3110 || ((cdb[0] != MODE_SENSE_6)
3111 && (cdb[0] != MODE_SELECT_6)))
3112 return (0);
984263bc 3113
62ade751
MD
3114 /*
3115 * Because there is no convenient place to stash the overall
3116 * cd_mode_params structure pointer, we have to grab it like this.
3117 * This means that ALL MODE_SENSE and MODE_SELECT requests in the
3118 * cd(4) driver MUST go through cdgetmode() and cdsetmode()!
3119 *
3120 * XXX It would be nice if, at some point, we could increase the
3121 * number of available peripheral private pointers. Both pointers
3122 * are currently used in most every peripheral driver.
3123 */
3124 found = 0;
984263bc 3125
62ade751
MD
3126 STAILQ_FOREACH(params, &softc->mode_queue, links) {
3127 if (params->mode_buf == ccb->csio.data_ptr) {
3128 found = 1;
3129 break;
3130 }
984263bc 3131 }
984263bc 3132
62ade751
MD
3133 /*
3134 * This shouldn't happen. All mode sense and mode select
3135 * operations in the cd(4) driver MUST go through cdgetmode() and
3136 * cdsetmode()!
3137 */
3138 if (found == 0) {
3139 xpt_print_path(periph->path);
3140 printf("mode buffer not found in mode queue!\n");
3141 return (0);
3142 }
984263bc 3143
62ade751
MD
3144 params->cdb_size = 10;
3145 softc->minimum_command_size = 10;
3146 xpt_print_path(ccb->ccb_h.path);
3147 printf("%s(6) failed, increasing minimum CDB size to 10 bytes\n",
3148 (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT");
3149
3150 if (cdb[0] == MODE_SENSE_6) {
3151 struct scsi_mode_sense_10 ms10;
3152 struct scsi_mode_sense_6 *ms6;
3153 int len;
3154
3155 ms6 = (struct scsi_mode_sense_6 *)cdb;
3156
3157 bzero(&ms10, sizeof(ms10));
3158 ms10.opcode = MODE_SENSE_10;
3159 ms10.byte2 = ms6->byte2;
3160 ms10.page = ms6->page;
3161
3162 /*
3163 * 10 byte mode header, block descriptor,
3164 * sizeof(union cd_pages)
3165 */
3166 len = sizeof(struct cd_mode_data_10);
3167 ccb->csio.dxfer_len = len;
3168
3169 scsi_ulto2b(len, ms10.length);
3170 ms10.control = ms6->control;
3171 bcopy(&ms10, cdb, 10);
3172 ccb->csio.cdb_len = 10;
3173 } else {
3174 struct scsi_mode_select_10 ms10;
3175 struct scsi_mode_select_6 *ms6;
3176 struct scsi_mode_header_6 *header6;
3177 struct scsi_mode_header_10 *header10;
3178 struct scsi_mode_page_header *page_header;
3179 int blk_desc_len, page_num, page_size, len;
3180
3181 ms6 = (struct scsi_mode_select_6 *)cdb;
3182
3183 bzero(&ms10, sizeof(ms10));
3184 ms10.opcode = MODE_SELECT_10;
3185 ms10.byte2 = ms6->byte2;
3186
3187 header6 = (struct scsi_mode_header_6 *)params->mode_buf;
3188 header10 = (struct scsi_mode_header_10 *)params->mode_buf;
3189
3190 page_header = find_mode_page_6(header6);
3191 page_num = page_header->page_code;
3192
3193 blk_desc_len = header6->blk_desc_len;
3194
3195 page_size = cdgetpagesize(page_num);
3196
3197 if (page_size != (page_header->page_length +
3198 sizeof(*page_header)))
3199 page_size = page_header->page_length +
3200 sizeof(*page_header);
3201
3202 len = sizeof(*header10) + blk_desc_len + page_size;
3203
3204 len = min(params->alloc_len, len);
3205
3206 /*
3207 * Since the 6 byte parameter header is shorter than the 10
3208 * byte parameter header, we need to copy the actual mode
3209 * page data, and the block descriptor, if any, so things wind
3210 * up in the right place. The regions will overlap, but
3211 * bcopy() does the right thing.
3212 */
3213 bcopy(params->mode_buf + sizeof(*header6),
3214 params->mode_buf + sizeof(*header10),
3215 len - sizeof(*header10));
3216
3217 /* Make sure these fields are set correctly. */
3218 scsi_ulto2b(0, header10->data_length);
3219 header10->medium_type = 0;
3220 scsi_ulto2b(blk_desc_len, header10->blk_desc_len);
3221
3222 ccb->csio.dxfer_len = len;
3223
3224 scsi_ulto2b(len, ms10.length);
3225 ms10.control = ms6->control;
3226 bcopy(&ms10, cdb, 10);
3227 ccb->csio.cdb_len = 10;
984263bc
MD
3228 }
3229
62ade751
MD
3230 frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
3231 ccb->ccb_h.status = CAM_REQUEUE_REQ;
3232 xpt_action(ccb);
3233 if (frozen) {
3234 cam_release_devq(ccb->ccb_h.path,
3235 /*relsim_flags*/0,
3236 /*openings*/0,
3237 /*timeout*/0,
3238 /*getcount_only*/0);
3239 }
984263bc 3240
62ade751 3241 return (ERESTART);
984263bc
MD
3242}
3243
3244static int
3245cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3246{
3247 struct cd_softc *softc;
3248 struct cam_periph *periph;
62ade751 3249 int error;
984263bc
MD
3250
3251 periph = xpt_path_periph(ccb->ccb_h.path);
3252 softc = (struct cd_softc *)periph->softc;
3253
62ade751
MD
3254 error = 0;
3255
3256 /*
3257 * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte
3258 * CDB comes back with this particular error, try transforming it
3259 * into the 10 byte version.
3260 */
3261 if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3262 error = cd6byteworkaround(ccb);
3263 } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
3264 CAM_SCSI_STATUS_ERROR)
3265 && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
3266 && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
3267 && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
3268 && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
3269 int sense_key, error_code, asc, ascq;
3270
3271 scsi_extract_sense(&ccb->csio.sense_data,
3272 &error_code, &sense_key, &asc, &ascq);
3273 if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3274 error = cd6byteworkaround(ccb);
3275 }
3276
3277 if (error == ERESTART)
3278 return (error);
3279
984263bc
MD
3280 /*
3281 * XXX
3282 * Until we have a better way of doing pack validation,
3283 * don't treat UAs as errors.
3284 */
3285 sense_flags |= SF_RETRY_UA;
3286 return (cam_periph_error(ccb, cam_flags, sense_flags,
3287 &softc->saved_ccb));
3288}
3289
3290/*
3291 * Read table of contents
3292 */
3293static int
3294cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start,
62ade751 3295 u_int8_t *data, u_int32_t len, u_int32_t sense_flags)
984263bc
MD
3296{
3297 struct scsi_read_toc *scsi_cmd;
3298 u_int32_t ntoc;
3299 struct ccb_scsiio *csio;
3300 union ccb *ccb;
3301 int error;
3302
3303 ntoc = len;
3304 error = 0;
3305
3306 ccb = cdgetccb(periph, /* priority */ 1);
3307
3308 csio = &ccb->csio;
3309
3310 cam_fill_csio(csio,
3311 /* retries */ 1,
3312 /* cbfcnp */ cddone,
3313 /* flags */ CAM_DIR_IN,
3314 /* tag_action */ MSG_SIMPLE_Q_TAG,
62ade751 3315 /* data_ptr */ data,
984263bc
MD
3316 /* dxfer_len */ len,
3317 /* sense_len */ SSD_FULL_SIZE,
3318 sizeof(struct scsi_read_toc),
3319 /* timeout */ 50000);
3320
3321 scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes;
3322 bzero (scsi_cmd, sizeof(*scsi_cmd));
3323
3324 if (mode == CD_MSF_FORMAT)
3325 scsi_cmd->byte2 |= CD_MSF;
3326 scsi_cmd->from_track = start;
3327 /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */
3328 scsi_cmd->data_len[0] = (ntoc) >> 8;
3329 scsi_cmd->data_len[1] = (ntoc) & 0xff;
3330
3331 scsi_cmd->op_code = READ_TOC;
3332
3333 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
62ade751
MD
3334 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO |
3335 sense_flags);
984263bc
MD
3336
3337 xpt_release_ccb(ccb);
3338
3339 return(error);
3340}
3341
3342static int
3343cdreadsubchannel(struct cam_periph *periph, u_int32_t mode,
3344 u_int32_t format, int track,
3345 struct cd_sub_channel_info *data, u_int32_t len)
3346{
3347 struct scsi_read_subchannel *scsi_cmd;
3348 struct ccb_scsiio *csio;
3349 union ccb *ccb;
3350 int error;
3351
3352 error = 0;
3353
3354 ccb = cdgetccb(periph, /* priority */ 1);
3355
3356 csio = &ccb->csio;
3357
3358 cam_fill_csio(csio,
3359 /* retries */ 1,
3360 /* cbfcnp */ cddone,
3361 /* flags */ CAM_DIR_IN,
3362 /* tag_action */ MSG_SIMPLE_Q_TAG,
3363 /* data_ptr */ (u_int8_t *)data,
3364 /* dxfer_len */ len,
3365 /* sense_len */ SSD_FULL_SIZE,
3366 sizeof(struct scsi_read_subchannel),
3367 /* timeout */ 50000);
3368
3369 scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes;
3370 bzero (scsi_cmd, sizeof(*scsi_cmd));
3371
3372 scsi_cmd->op_code = READ_SUBCHANNEL;
3373 if (mode == CD_MSF_FORMAT)
3374 scsi_cmd->byte1 |= CD_MSF;
3375 scsi_cmd->byte2 = SRS_SUBQ;
3376 scsi_cmd->subchan_format = format;
3377 scsi_cmd->track = track;
3378 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len);
3379 scsi_cmd->control = 0;
3380
3381 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3382 /*sense_flags*/SF_RETRY_UA|SF_RETRY_SELTO);
3383
3384 xpt_release_ccb(ccb);
3385
3386 return(error);
3387}
3388
62ade751
MD
3389/*
3390 * All MODE_SENSE requests in the cd(4) driver MUST go through this
3391 * routine. See comments in cd6byteworkaround() for details.
3392 */
984263bc 3393static int
62ade751
MD
3394cdgetmode(struct cam_periph *periph, struct cd_mode_params *data,
3395 u_int32_t page)
984263bc 3396{
62ade751
MD
3397 struct ccb_scsiio *csio;
3398 struct cd_softc *softc;
984263bc 3399 union ccb *ccb;
62ade751 3400 int param_len;
984263bc
MD
3401 int error;
3402
62ade751
MD
3403 softc = (struct cd_softc *)periph->softc;
3404
984263bc
MD
3405 ccb = cdgetccb(periph, /* priority */ 1);
3406
3407 csio = &ccb->csio;
3408
62ade751
MD
3409 data->cdb_size = softc->minimum_command_size;
3410 if (data->cdb_size < 10)
3411 param_len = sizeof(struct cd_mode_data);
3412 else
3413 param_len = sizeof(struct cd_mode_data_10);
3414
3415 /* Don't say we've got more room than we actually allocated */
3416 param_len = min(param_len, data->alloc_len);
3417
3418 scsi_mode_sense_len(csio,
3419 /* retries */ 1,
3420 /* cbfcnp */ cddone,
3421 /* tag_action */ MSG_SIMPLE_Q_TAG,
3422 /* dbd */ 0,
3423 /* page_code */ SMS_PAGE_CTRL_CURRENT,
3424 /* page */ page,
3425 /* param_buf */ data->mode_buf,
3426 /* param_len */ param_len,
3427 /* minimum_cmd_size */ softc->minimum_command_size,
3428 /* sense_len */ SSD_FULL_SIZE,
3429 /* timeout */ 50000);
984263bc 3430
62ade751
MD
3431 /*
3432 * It would be nice not to have to do this, but there's no
3433 * available pointer in the CCB that would allow us to stuff the
3434 * mode params structure in there and retrieve it in
3435 * cd6byteworkaround(), so we can set the cdb size. The cdb size
3436 * lets the caller know what CDB size we ended up using, so they
3437 * can find the actual mode page offset.
3438 */
3439 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
984263bc
MD
3440
3441 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3442 /*sense_flags*/SF_RETRY_UA|SF_RETRY_SELTO);
3443
3444 xpt_release_ccb(ccb);
3445
62ade751
MD
3446 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3447
3448 /*
3449 * This is a bit of belt-and-suspenders checking, but if we run
3450 * into a situation where the target sends back multiple block
3451 * descriptors, we might not have enough space in the buffer to
3452 * see the whole mode page. Better to return an error than
3453 * potentially access memory beyond our malloced region.
3454 */
3455 if (error == 0) {
3456 u_int32_t data_len;
3457
3458 if (data->cdb_size == 10) {
3459 struct scsi_mode_header_10 *hdr10;
3460
3461 hdr10 = (struct scsi_mode_header_10 *)data->mode_buf;
3462 data_len = scsi_2btoul(hdr10->data_length);
3463 data_len += sizeof(hdr10->data_length);
3464 } else {
3465 struct scsi_mode_header_6 *hdr6;
3466
3467 hdr6 = (struct scsi_mode_header_6 *)data->mode_buf;
3468 data_len = hdr6->data_length;
3469 data_len += sizeof(hdr6->data_length);
3470 }
3471
3472 /*
3473 * Complain if there is more mode data available than we
3474 * allocated space for. This could potentially happen if
3475 * we miscalculated the page length for some reason, if the
3476 * drive returns multiple block descriptors, or if it sets
3477 * the data length incorrectly.
3478 */
3479 if (data_len > data->alloc_len) {
3480 xpt_print_path(periph->path);
3481 printf("allocated modepage %d length %d < returned "
3482 "length %d\n", page, data->alloc_len, data_len);
3483
3484 error = ENOSPC;
3485 }
3486 }
3487 return (error);
984263bc
MD
3488}
3489
62ade751
MD
3490/*
3491 * All MODE_SELECT requests in the cd(4) driver MUST go through this
3492 * routine. See comments in cd6byteworkaround() for details.
3493 */
984263bc 3494static int
62ade751 3495cdsetmode(struct cam_periph *periph, struct cd_mode_params *data)
984263bc 3496{
62ade751
MD
3497 struct ccb_scsiio *csio;
3498 struct cd_softc *softc;
984263bc 3499 union ccb *ccb;
62ade751 3500 int cdb_size, param_len;
984263bc
MD
3501 int error;
3502
62ade751
MD
3503 softc = (struct cd_softc *)periph->softc;
3504
984263bc
MD
3505 ccb = cdgetccb(periph, /* priority */ 1);
3506
3507 csio = &ccb->csio;
3508
3509 error = 0;
3510
984263bc 3511 /*
62ade751
MD
3512 * If the data is formatted for the 10 byte version of the mode
3513 * select parameter list, we need to use the 10 byte CDB.
3514 * Otherwise, we use whatever the stored minimum command size.
984263bc 3515 */
62ade751
MD
3516 if (data->cdb_size == 10)
3517 cdb_size = data->cdb_size;
3518 else
3519 cdb_size = softc->minimum_command_size;
3520
3521 if (cdb_size >= 10) {
3522 struct scsi_mode_header_10 *mode_header;
3523 u_int32_t data_len;
3524
3525 mode_header = (struct scsi_mode_header_10 *)data->mode_buf;
3526
3527 data_len = scsi_2btoul(mode_header->data_length);
3528
3529 scsi_ulto2b(0, mode_header->data_length);
3530 /*
3531 * SONY drives do not allow a mode select with a medium_type
3532 * value that has just been returned by a mode sense; use a
3533 * medium_type of 0 (Default) instead.
3534 */
3535 mode_header->medium_type = 0;
3536
3537 /*
3538 * Pass back whatever the drive passed to us, plus the size
3539 * of the data length field.
3540 */
3541 param_len = data_len + sizeof(mode_header->data_length);
3542
3543 } else {
3544 struct scsi_mode_header_6 *mode_header;
3545
3546 mode_header = (struct scsi_mode_header_6 *)data->mode_buf;
3547
3548 param_len = mode_header->data_length + 1;
3549
3550 mode_header->data_length = 0;
3551 /*
3552 * SONY drives do not allow a mode select with a medium_type
3553 * value that has just been returned by a mode sense; use a
3554 * medium_type of 0 (Default) instead.
3555 */
3556 mode_header->medium_type = 0;
3557 }
3558
3559 /* Don't say we've got more room than we actually allocated */
3560 param_len = min(param_len, data->alloc_len);
3561
3562 scsi_mode_select_len(csio,
3563 /* retries */ 1,
3564 /* cbfcnp */ cddone,
3565 /* tag_action */ MSG_SIMPLE_Q_TAG,
3566 /* scsi_page_fmt */ 1,
3567 /* save_pages */ 0,
3568 /* param_buf */ data->mode_buf,
3569 /* param_len */ param_len,
3570 /* minimum_cmd_size */ cdb_size,
3571 /* sense_len */ SSD_FULL_SIZE,
3572 /* timeout */ 50000);
3573
3574 /* See comments in cdgetmode() and cd6byteworkaround(). */
3575 STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
984263bc
MD
3576
3577 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3578 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3579
3580 xpt_release_ccb(ccb);
3581
62ade751
MD
3582 STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3583
3584 return (error);
984263bc
MD
3585}
3586
62ade751 3587
984263bc
MD
3588
3589static int
3590cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len)
3591{
3592 struct ccb_scsiio *csio;
3593 union ccb *ccb;
3594 int error;
3595 u_int8_t cdb_len;
3596
3597 error = 0;
3598 ccb = cdgetccb(periph, /* priority */ 1);
3599 csio = &ccb->csio;
3600 /*
3601 * Use the smallest possible command to perform the operation.
3602 */
3603 if ((len & 0xffff0000) == 0) {
3604 /*
3605 * We can fit in a 10 byte cdb.
3606 */
3607 struct scsi_play_10 *scsi_cmd;
3608
3609 scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes;
3610 bzero (scsi_cmd, sizeof(*scsi_cmd));
3611 scsi_cmd->op_code = PLAY_10;
3612 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3613 scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len);
3614 cdb_len = sizeof(*scsi_cmd);
3615 } else {
3616 struct scsi_play_12 *scsi_cmd;
3617
3618 scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes;
3619 bzero (scsi_cmd, sizeof(*scsi_cmd));
3620 scsi_cmd->op_code = PLAY_12;
3621 scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3622 scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len);
3623 cdb_len = sizeof(*scsi_cmd);
3624 }
3625 cam_fill_csio(csio,
3626 /*retries*/2,
3627 cddone,
3628 /*flags*/CAM_DIR_NONE,
3629 MSG_SIMPLE_Q_TAG,
3630 /*dataptr*/NULL,
3631 /*datalen*/0,
3632 /*sense_len*/SSD_FULL_SIZE,
3633 cdb_len,
3634 /*timeout*/50 * 1000);
3635
3636 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3637 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3638
3639 xpt_release_ccb(ccb);
3640
3641 return(error);
3642}
3643
3644static int
3645cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts,
3646 u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf)
3647{
3648 struct scsi_play_msf *scsi_cmd;
3649 struct ccb_scsiio *csio;
3650 union ccb *ccb;
3651 int error;
3652
3653 error = 0;
3654
3655 ccb = cdgetccb(periph, /* priority */ 1);
3656
3657 csio = &ccb->csio;
3658
3659 cam_fill_csio(csio,
3660 /* retries */ 1,
3661 /* cbfcnp */ cddone,
3662 /* flags */ CAM_DIR_NONE,
3663 /* tag_action */ MSG_SIMPLE_Q_TAG,
3664 /* data_ptr */ NULL,
3665 /* dxfer_len */ 0,
3666 /* sense_len */ SSD_FULL_SIZE,
3667 sizeof(struct scsi_play_msf),
3668 /* timeout */ 50000);
3669
3670 scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes;
3671 bzero (scsi_cmd, sizeof(*scsi_cmd));
3672
3673 scsi_cmd->op_code = PLAY_MSF;
3674 scsi_cmd->start_m = startm;
3675 scsi_cmd->start_s = starts;
3676 scsi_cmd->start_f = startf;
3677 scsi_cmd->end_m = endm;
3678 scsi_cmd->end_s = ends;
3679 scsi_cmd->end_f = endf;
3680
3681 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3682 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3683
3684 xpt_release_ccb(ccb);
3685
3686 return(error);
3687}
3688
3689
3690static int
3691cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex,
3692 u_int32_t etrack, u_int32_t eindex)
3693{
3694 struct scsi_play_track *scsi_cmd;
3695 struct ccb_scsiio *csio;
3696 union ccb *ccb;
3697 int error;
3698
3699 error = 0;
3700
3701 ccb = cdgetccb(periph, /* priority */ 1);
3702
3703 csio = &ccb->csio;
3704
3705 cam_fill_csio(csio,
3706 /* retries */ 1,
3707 /* cbfcnp */ cddone,
3708 /* flags */ CAM_DIR_NONE,
3709 /* tag_action */ MSG_SIMPLE_Q_TAG,
3710 /* data_ptr */ NULL,
3711 /* dxfer_len */ 0,
3712 /* sense_len */ SSD_FULL_SIZE,
3713 sizeof(struct scsi_play_track),
3714 /* timeout */ 50000);
3715
3716 scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes;
3717 bzero (scsi_cmd, sizeof(*scsi_cmd));
3718
3719 scsi_cmd->op_code = PLAY_TRACK;
3720 scsi_cmd->start_track = strack;
3721 scsi_cmd->start_index = sindex;
3722 scsi_cmd->end_track = etrack;
3723 scsi_cmd->end_index = eindex;
3724
3725 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3726 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3727
3728 xpt_release_ccb(ccb);
3729
3730 return(error);
3731}
3732
3733static int
3734cdpause(struct cam_periph *periph, u_int32_t go)
3735{
3736 struct scsi_pause *scsi_cmd;
3737 struct ccb_scsiio *csio;
3738 union ccb *ccb;
3739 int error;
3740
3741 error = 0;
3742
3743 ccb = cdgetccb(periph, /* priority */ 1);
3744
3745 csio = &ccb->csio;
3746
3747 cam_fill_csio(csio,
3748 /* retries */ 1,
3749 /* cbfcnp */ cddone,
3750 /* flags */ CAM_DIR_NONE,
3751 /* tag_action */ MSG_SIMPLE_Q_TAG,
3752 /* data_ptr */ NULL,
3753 /* dxfer_len */ 0,
3754 /* sense_len */ SSD_FULL_SIZE,
3755 sizeof(struct scsi_pause),
3756 /* timeout */ 50000);
3757
3758 scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes;
3759 bzero (scsi_cmd, sizeof(*scsi_cmd));
3760
3761 scsi_cmd->op_code = PAUSE;
3762 scsi_cmd->resume = go;
3763
3764 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3765 /*sense_flags*/SF_RETRY_UA |SF_RETRY_SELTO);
3766
3767 xpt_release_ccb(ccb);
3768
3769 return(error);
3770}
3771
3772static int
62ade751 3773cdstartunit(struct cam_periph *periph, int load)
984263bc
MD
3774{
3775 union ccb *ccb;
3776 int error;
3777
3778 error = 0;
3779
3780 ccb = cdgetccb(periph, /* priority */ 1);
3781
3782 scsi_start_stop(&ccb->csio,
3783 /* retries */ 1,
3784 /* cbfcnp */ cddone,
3785 /* tag_action */ MSG_SIMPLE_Q_TAG,
3786 /* start */ TRUE,
62ade751 3787 /* load_eject */ load,
984263bc
MD
3788 /* immediate */ FALSE,
3789 /* sense_len */ SSD_FULL_SIZE,
3790 /* timeout */ 50000);
3791
3792 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3793 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3794
3795 xpt_release_ccb(ccb);
3796
3797 return(error);
3798}
3799
3800static int
3801cdstopunit(struct cam_periph *periph, u_int32_t eject)
3802{
3803 union ccb *ccb;
3804 int error;
3805
3806 error = 0;
3807
3808 ccb = cdgetccb(periph, /* priority */ 1);
3809
3810 scsi_start_stop(&ccb->csio,
3811 /* retries */ 1,
3812 /* cbfcnp */ cddone,
3813 /* tag_action */ MSG_SIMPLE_Q_TAG,
3814 /* start */ FALSE,
3815 /* load_eject */ eject,
3816 /* immediate */ FALSE,
3817 /* sense_len */ SSD_FULL_SIZE,
3818 /* timeout */ 50000);
3819
3820 error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3821 /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3822
3823 xpt_release_ccb(ccb);
3824
3825 return(error);
3826}
3827
3828static int
3829cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed)
3830{
3831 struct scsi_set_speed *scsi_cmd;
3832 struct ccb_scsiio *csio;
3833 union ccb *ccb;
3834 int error;
3835
3836 error = 0;
3837 ccb = cdgetccb(periph, /* priority */ 1);
3838 csio = &ccb->csio;
3839
3840 /* Preserve old behavior: units in multiples of CDROM speed */
3841 if (rdspeed < 177)
3842 rdspeed *= 177;
3843 if (wrspeed < 177)
3844 wrspeed *= 177;
3845