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scsi_cd.c
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1.12:
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Fri Mar 12 03:23:19 2004 UTC (9 years, 2 months ago) by
dillon
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Change M_NOWAIT to M_INTWAIT or M_WAITOK. CAM does a mediocre job checking
for NULL returns from malloc() and even when it does it generally causes
the device operation to fail instead of retrying, resulting in unacceptable
behavior. M_NOWAIT semantics allow NULL to be returned during normal system
operation. This is especially true in DragonFly.
Also remove much of the code that previously checked for NULL. By using
M_INTWAIT or M_WAITOK, malloc() will panic rather then return NULL. Only
the addition of M_NULLOK allows a blocking malloc() to return NULL, and we
do not use that flag in CAM.
Add M_ZERO to a number of malloc()'s and remove subsequent bzero()'s, and
add M_ZERO to a few mallocs (primarily for the read capacity data structure)
that did not bother zeroing out the structure before. While the data is
supposed to be overwritten read-capacity is often quite fragile due to the
SCSI simulation layer, so we do not take any chances.
1: /*
2: * Copyright (c) 1997 Justin T. Gibbs.
3: * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2003, 2003 Kenneth D. Merry.
4: * All rights reserved.
5: *
6: * Redistribution and use in source and binary forms, with or without
7: * modification, are permitted provided that the following conditions
8: * are met:
9: * 1. Redistributions of source code must retain the above copyright
10: * notice, this list of conditions, and the following disclaimer,
11: * without modification, immediately at the beginning of the file.
12: * 2. The name of the author may not be used to endorse or promote products
13: * derived from this software without specific prior written permission.
14: *
15: * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16: * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17: * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18: * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
19: * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20: * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21: * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22: * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23: * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24: * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25: * SUCH DAMAGE.
26: *
27: * $FreeBSD: src/sys/cam/scsi/scsi_cd.c,v 1.31.2.16 2003/10/21 22:26:11 thomas Exp $
28: * $DragonFly: src/sys/bus/cam/scsi/scsi_cd.c,v 1.12 2004/03/12 03:23:19 dillon Exp $
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>
53: #include <sys/bootmaj.h>
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>
65: #include <sys/taskqueue.h>
66: #include <sys/proc.h>
67: #include <sys/buf2.h>
68:
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"
75:
76: #include "scsi_message.h"
77: #include "scsi_da.h"
78: #include "scsi_cd.h"
79:
80: #define LEADOUT 0xaa /* leadout toc entry */
81:
82: struct cd_params {
83: u_int32_t blksize;
84: u_long disksize;
85: };
86:
87: typedef enum {
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
94: } cd_quirks;
95:
96: typedef enum {
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
110: } cd_flags;
111:
112: typedef 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:
120: typedef 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:
130: struct cd_tocdata {
131: struct ioc_toc_header header;
132: struct cd_toc_entry entries[100];
133: };
134:
135: struct cd_toc_single {
136: struct ioc_toc_header header;
137: struct cd_toc_entry entry;
138: };
139:
140: typedef enum {
141: CD_STATE_PROBE,
142: CD_STATE_NORMAL
143: } cd_state;
144:
145: struct 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;
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:
168: struct cd_page_sizes {
169: int page;
170: int page_size;
171: };
172:
173: static struct cd_page_sizes cd_page_size_table[] =
174: {
175: { AUDIO_PAGE, sizeof(struct cd_audio_page)}
176: };
177:
178: struct cd_quirk_entry {
179: struct scsi_inquiry_pattern inq_pat;
180: cd_quirks quirks;
181: };
182:
183: /*
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
189: * opposed to the "normal" CD code.
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.
200: */
201: static 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:
221: static d_open_t cdopen;
222: static d_close_t cdclose;
223: static d_ioctl_t cdioctl;
224: static d_strategy_t cdstrategy;
225:
226: static periph_init_t cdinit;
227: static periph_ctor_t cdregister;
228: static periph_dtor_t cdcleanup;
229: static periph_start_t cdstart;
230: static periph_oninv_t cdoninvalidate;
231: static void cdasync(void *callback_arg, u_int32_t code,
232: struct cam_path *path, void *arg);
233: static int cdcmdsizesysctl(SYSCTL_HANDLER_ARGS);
234: static void cdshorttimeout(void *arg);
235: static void cdschedule(struct cam_periph *periph, int priority);
236: static void cdrunchangerqueue(void *arg);
237: static void cdchangerschedule(struct cd_softc *softc);
238: static 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);
243: static union ccb *cdgetccb(struct cam_periph *periph,
244: u_int32_t priority);
245: static void cddone(struct cam_periph *periph,
246: union ccb *start_ccb);
247: static int cderror(union ccb *ccb, u_int32_t cam_flags,
248: u_int32_t sense_flags);
249: static union cd_pages *cdgetpage(struct cd_mode_params *mode_params);
250: static int cdgetpagesize(int page_num);
251: static void cdprevent(struct cam_periph *periph, int action);
252: static int cdcheckmedia(struct cam_periph *periph);
253: static int cdsize(struct cam_periph *periph, u_int32_t *size);
254: static int cd6byteworkaround(union ccb *ccb);
255: static int cdreadtoc(struct cam_periph *periph, u_int32_t mode,
256: u_int32_t start, u_int8_t *data,
257: u_int32_t len, u_int32_t sense_flags);
258: static int cdgetmode(struct cam_periph *periph,
259: struct cd_mode_params *data, u_int32_t page);
260: static int cdsetmode(struct cam_periph *periph,
261: struct cd_mode_params *data);
262: static int cdplay(struct cam_periph *periph, u_int32_t blk,
263: u_int32_t len);
264: static 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);
269: static 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);
273: static int cdplaytracks(struct cam_periph *periph,
274: u_int32_t strack, u_int32_t sindex,
275: u_int32_t etrack, u_int32_t eindex);
276: static int cdpause(struct cam_periph *periph, u_int32_t go);
277: static int cdstopunit(struct cam_periph *periph, u_int32_t eject);
278: static int cdstartunit(struct cam_periph *periph, int load);
279: static int cdsetspeed(struct cam_periph *periph,
280: u_int32_t rdspeed, u_int32_t wrspeed);
281: static int cdreportkey(struct cam_periph *periph,
282: struct dvd_authinfo *authinfo);
283: static int cdsendkey(struct cam_periph *periph,
284: struct dvd_authinfo *authinfo);
285: static int cdreaddvdstructure(struct cam_periph *periph,
286: struct dvd_struct *dvdstruct);
287:
288: static struct periph_driver cddriver =
289: {
290: cdinit, "cd",
291: TAILQ_HEAD_INITIALIZER(cddriver.units), /* generation */ 0
292: };
293:
294: DATA_SET(periphdriver_set, cddriver);
295:
296: /* For 2.2-stable support */
297: #ifndef D_DISK
298: #define D_DISK 0
299: #endif
300: static struct cdevsw cd_cdevsw = {
301: /* name */ "cd",
302: /* maj */ SCSICD_CDEV_MAJOR,
303: /* flags */ D_DISK,
304: /* port */ NULL,
305: /* autoq */ 0,
306:
307: /* open */ cdopen,
308: /* close */ cdclose,
309: /* read */ physread,
310: /* write */ physwrite,
311: /* ioctl */ cdioctl,
312: /* poll */ nopoll,
313: /* mmap */ nommap,
314: /* strategy */ cdstrategy,
315: /* dump */ nodump,
316: /* psize */ nopsize,
317: };
318:
319: static struct extend_array *cdperiphs;
320: static 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:
329: static int changer_min_busy_seconds = CHANGER_MIN_BUSY_SECONDS;
330: static 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: */
336: SYSCTL_NODE(_kern_cam, OID_AUTO, cd, CTLFLAG_RD, 0, "CAM CDROM driver");
337: SYSCTL_NODE(_kern_cam_cd, OID_AUTO, changer, CTLFLAG_RD, 0, "CD Changer");
338: SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, min_busy_seconds, CTLFLAG_RW,
339: &changer_min_busy_seconds, 0, "Minimum changer scheduling quantum");
340: TUNABLE_INT("kern.cam.cd.changer.min_busy_seconds", &changer_min_busy_seconds);
341: SYSCTL_INT(_kern_cam_cd_changer, OID_AUTO, max_busy_seconds, CTLFLAG_RW,
342: &changer_max_busy_seconds, 0, "Maximum changer scheduling quantum");
343: TUNABLE_INT("kern.cam.cd.changer.max_busy_seconds", &changer_max_busy_seconds);
344:
345: struct 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;
352: struct callout_handle short_handle;
353: struct callout_handle long_handle;
354: volatile cd_changer_flags flags;
355: STAILQ_ENTRY(cdchanger) changer_links;
356: STAILQ_HEAD(chdevlist, cd_softc) chluns;
357: };
358:
359: static STAILQ_HEAD(changerlist, cdchanger) changerq;
360:
361: void
362: cdinit(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:
402: static void
403: cdoninvalidate(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:
459: static void
460: cdcleanup(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:
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:
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) {
506: untimeout(cdshorttimeout, softc->changer,
507: softc->changer->short_handle);
508: softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
509: }
510: softc->changer->devq.qfrozen_cnt--;
511: softc->changer->flags |= CHANGER_MANUAL_CALL;
512: cdrunchangerqueue(softc->changer);
513: }
514:
515: /*
516: * If we're removing the last device on the changer, go ahead and
517: * remove the changer device structure.
518: */
519: if ((softc->flags & CD_FLAG_CHANGER)
520: && (--softc->changer->num_devices == 0)) {
521:
522: /*
523: * Theoretically, there shouldn't be any timeouts left, but
524: * I'm not completely sure that that will be the case. So,
525: * it won't hurt to check and see if there are any left.
526: */
527: if (softc->changer->flags & CHANGER_TIMEOUT_SCHED) {
528: untimeout(cdrunchangerqueue, softc->changer,
529: softc->changer->long_handle);
530: softc->changer->flags &= ~CHANGER_TIMEOUT_SCHED;
531: }
532:
533: if (softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
534: untimeout(cdshorttimeout, softc->changer,
535: softc->changer->short_handle);
536: softc->changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
537: }
538:
539: STAILQ_REMOVE(&changerq, softc->changer, cdchanger,
540: changer_links);
541: xpt_print_path(periph->path);
542: printf("removing changer entry\n");
543: free(softc->changer, M_DEVBUF);
544: num_changers--;
545: }
546: devstat_remove_entry(&softc->device_stats);
547: cam_extend_release(cdperiphs, periph->unit_number);
548: if (softc->disk.d_dev) {
549: disk_destroy(&softc->disk);
550: }
551: free(softc, M_DEVBUF);
552: splx(s);
553: }
554:
555: static void
556: cdasync(void *callback_arg, u_int32_t code,
557: struct cam_path *path, void *arg)
558: {
559: struct cam_periph *periph;
560:
561: periph = (struct cam_periph *)callback_arg;
562: switch (code) {
563: case AC_FOUND_DEVICE:
564: {
565: struct ccb_getdev *cgd;
566: cam_status status;
567:
568: cgd = (struct ccb_getdev *)arg;
569:
570: if (SID_TYPE(&cgd->inq_data) != T_CDROM
571: && SID_TYPE(&cgd->inq_data) != T_WORM)
572: break;
573:
574: /*
575: * Allocate a peripheral instance for
576: * this device and start the probe
577: * process.
578: */
579: status = cam_periph_alloc(cdregister, cdoninvalidate,
580: cdcleanup, cdstart,
581: "cd", CAM_PERIPH_BIO,
582: cgd->ccb_h.path, cdasync,
583: AC_FOUND_DEVICE, cgd);
584:
585: if (status != CAM_REQ_CMP
586: && status != CAM_REQ_INPROG)
587: printf("cdasync: Unable to attach new device "
588: "due to status 0x%x\n", status);
589:
590: break;
591: }
592: case AC_SENT_BDR:
593: case AC_BUS_RESET:
594: {
595: struct cd_softc *softc;
596: struct ccb_hdr *ccbh;
597: int s;
598:
599: softc = (struct cd_softc *)periph->softc;
600: s = splsoftcam();
601: /*
602: * Don't fail on the expected unit attention
603: * that will occur.
604: */
605: softc->flags |= CD_FLAG_RETRY_UA;
606: for (ccbh = LIST_FIRST(&softc->pending_ccbs);
607: ccbh != NULL; ccbh = LIST_NEXT(ccbh, periph_links.le))
608: ccbh->ccb_state |= CD_CCB_RETRY_UA;
609: splx(s);
610: /* FALLTHROUGH */
611: }
612: default:
613: cam_periph_async(periph, code, path, arg);
614: break;
615: }
616: }
617:
618: static void
619: cdsysctlinit(void *context, int pending)
620: {
621: struct cam_periph *periph;
622: struct cd_softc *softc;
623: char tmpstr[80], tmpstr2[80];
624:
625: periph = (struct cam_periph *)context;
626: softc = (struct cd_softc *)periph->softc;
627:
628: snprintf(tmpstr, sizeof(tmpstr), "CAM CD unit %d", periph->unit_number);
629: snprintf(tmpstr2, sizeof(tmpstr2), "%d", periph->unit_number);
630:
631: sysctl_ctx_init(&softc->sysctl_ctx);
632: softc->flags |= CD_FLAG_SCTX_INIT;
633: softc->sysctl_tree = SYSCTL_ADD_NODE(&softc->sysctl_ctx,
634: SYSCTL_STATIC_CHILDREN(_kern_cam_cd), OID_AUTO,
635: tmpstr2, CTLFLAG_RD, 0, tmpstr);
636:
637: if (softc->sysctl_tree == NULL) {
638: printf("cdsysctlinit: unable to allocate sysctl tree\n");
639: return;
640: }
641:
642: /*
643: * Now register the sysctl handler, so the user can the value on
644: * the fly.
645: */
646: SYSCTL_ADD_PROC(&softc->sysctl_ctx,SYSCTL_CHILDREN(softc->sysctl_tree),
647: OID_AUTO, "minimum_cmd_size", CTLTYPE_INT | CTLFLAG_RW,
648: &softc->minimum_command_size, 0, cdcmdsizesysctl, "I",
649: "Minimum CDB size");
650: }
651:
652: /*
653: * We have a handler function for this so we can check the values when the
654: * user sets them, instead of every time we look at them.
655: */
656: static int
657: cdcmdsizesysctl(SYSCTL_HANDLER_ARGS)
658: {
659: int error, value;
660:
661: value = *(int *)arg1;
662:
663: error = sysctl_handle_int(oidp, &value, 0, req);
664:
665: if ((error != 0) || (req->newptr == NULL))
666: return (error);
667:
668: /*
669: * The only real values we can have here are 6 or 10. I don't
670: * really forsee having 12 be an option at any time in the future.
671: * So if the user sets something less than or equal to 6, we'll set
672: * it to 6. If he sets something greater than 6, we'll set it to 10.
673: *
674: * I suppose we could just return an error here for the wrong values,
675: * but I don't think it's necessary to do so, as long as we can
676: * determine the user's intent without too much trouble.
677: */
678: if (value < 6)
679: value = 6;
680: else if (value > 6)
681: value = 10;
682:
683: *(int *)arg1 = value;
684:
685: return (0);
686: }
687:
688:
689: static cam_status
690: cdregister(struct cam_periph *periph, void *arg)
691: {
692: struct cd_softc *softc;
693: struct ccb_setasync csa;
694: struct ccb_pathinq cpi;
695: struct ccb_getdev *cgd;
696: char tmpstr[80];
697: caddr_t match;
698:
699: cgd = (struct ccb_getdev *)arg;
700: if (periph == NULL) {
701: printf("cdregister: periph was NULL!!\n");
702: return(CAM_REQ_CMP_ERR);
703: }
704: if (cgd == NULL) {
705: printf("cdregister: no getdev CCB, can't register device\n");
706: return(CAM_REQ_CMP_ERR);
707: }
708:
709: softc = malloc(sizeof(*softc), M_DEVBUF, M_WAITOK | M_ZERO);
710: LIST_INIT(&softc->pending_ccbs);
711: STAILQ_INIT(&softc->mode_queue);
712: softc->state = CD_STATE_PROBE;
713: bufq_init(&softc->buf_queue);
714: if (SID_IS_REMOVABLE(&cgd->inq_data))
715: softc->flags |= CD_FLAG_DISC_REMOVABLE;
716: if ((cgd->inq_data.flags & SID_CmdQue) != 0)
717: softc->flags |= CD_FLAG_TAGGED_QUEUING;
718:
719: periph->softc = softc;
720: softc->periph = periph;
721:
722: cam_extend_set(cdperiphs, periph->unit_number, periph);
723:
724: /*
725: * See if this device has any quirks.
726: */
727: match = cam_quirkmatch((caddr_t)&cgd->inq_data,
728: (caddr_t)cd_quirk_table,
729: sizeof(cd_quirk_table)/sizeof(*cd_quirk_table),
730: sizeof(*cd_quirk_table), scsi_inquiry_match);
731:
732: if (match != NULL)
733: softc->quirks = ((struct cd_quirk_entry *)match)->quirks;
734: else
735: softc->quirks = CD_Q_NONE;
736:
737: /* Check if the SIM does not want 6 byte commands */
738: xpt_setup_ccb(&cpi.ccb_h, periph->path, /*priority*/1);
739: cpi.ccb_h.func_code = XPT_PATH_INQ;
740: xpt_action((union ccb *)&cpi);
741: if (cpi.ccb_h.status == CAM_REQ_CMP && (cpi.hba_misc & PIM_NO_6_BYTE))
742: softc->quirks |= CD_Q_10_BYTE_ONLY;
743:
744: TASK_INIT(&softc->sysctl_task, 0, cdsysctlinit, periph);
745:
746: /* The default is 6 byte commands, unless quirked otherwise */
747: if (softc->quirks & CD_Q_10_BYTE_ONLY)
748: softc->minimum_command_size = 10;
749: else
750: softc->minimum_command_size = 6;
751:
752: /*
753: * Load the user's default, if any.
754: */
755: snprintf(tmpstr, sizeof(tmpstr), "kern.cam.cd.%d.minimum_cmd_size",
756: periph->unit_number);
757: TUNABLE_INT_FETCH(tmpstr, &softc->minimum_command_size);
758:
759: /* 6 and 10 are the only permissible values here. */
760: if (softc->minimum_command_size < 6)
761: softc->minimum_command_size = 6;
762: else if (softc->minimum_command_size > 6)
763: softc->minimum_command_size = 10;
764:
765: /*
766: * We need to register the statistics structure for this device,
767: * but we don't have the blocksize yet for it. So, we register
768: * the structure and indicate that we don't have the blocksize
769: * yet. Unlike other SCSI peripheral drivers, we explicitly set
770: * the device type here to be CDROM, rather than just ORing in
771: * the device type. This is because this driver can attach to either
772: * CDROM or WORM devices, and we want this peripheral driver to
773: * show up in the devstat list as a CD peripheral driver, not a
774: * WORM peripheral driver. WORM drives will also have the WORM
775: * driver attached to them.
776: */
777: devstat_add_entry(&softc->device_stats, "cd",
778: periph->unit_number, 0,
779: DEVSTAT_BS_UNAVAILABLE,
780: DEVSTAT_TYPE_CDROM | DEVSTAT_TYPE_IF_SCSI,
781: DEVSTAT_PRIORITY_CD);
782: disk_create(periph->unit_number, &softc->disk,
783: DSO_ONESLICE | DSO_COMPATLABEL, &cd_cdevsw);
784:
785: /*
786: * Add an async callback so that we get
787: * notified if this device goes away.
788: */
789: xpt_setup_ccb(&csa.ccb_h, periph->path,
790: /* priority */ 5);
791: csa.ccb_h.func_code = XPT_SASYNC_CB;
792: csa.event_enable = AC_SENT_BDR | AC_BUS_RESET | AC_LOST_DEVICE;
793: csa.callback = cdasync;
794: csa.callback_arg = periph;
795: xpt_action((union ccb *)&csa);
796:
797: /*
798: * If the target lun is greater than 0, we most likely have a CD
799: * changer device. Check the quirk entries as well, though, just
800: * in case someone has a CD tower with one lun per drive or
801: * something like that. Also, if we know up front that a
802: * particular device is a changer, we can mark it as such starting
803: * with lun 0, instead of lun 1. It shouldn't be necessary to have
804: * a quirk entry to define something as a changer, however.
805: */
806: if (((cgd->ccb_h.target_lun > 0)
807: && ((softc->quirks & CD_Q_NO_CHANGER) == 0))
808: || ((softc->quirks & CD_Q_CHANGER) != 0)) {
809: struct cdchanger *nchanger;
810: struct cam_periph *nperiph;
811: struct cam_path *path;
812: cam_status status;
813: int found;
814:
815: /* Set the changer flag in the current device's softc */
816: softc->flags |= CD_FLAG_CHANGER;
817:
818: if (num_changers == 0)
819: STAILQ_INIT(&changerq);
820:
821: /*
822: * Now, look around for an existing changer device with the
823: * same path and target ID as the current device.
824: */
825: for (found = 0,
826: nchanger = (struct cdchanger *)STAILQ_FIRST(&changerq);
827: nchanger != NULL;
828: nchanger = STAILQ_NEXT(nchanger, changer_links)){
829: if ((nchanger->path_id == cgd->ccb_h.path_id)
830: && (nchanger->target_id == cgd->ccb_h.target_id)) {
831: found = 1;
832: break;
833: }
834: }
835:
836: /*
837: * If we found a matching entry, just add this device to
838: * the list of devices on this changer.
839: */
840: if (found == 1) {
841: struct chdevlist *chlunhead;
842:
843: chlunhead = &nchanger->chluns;
844:
845: /*
846: * XXX KDM look at consolidating this code with the
847: * code below in a separate function.
848: */
849:
850: /*
851: * Create a path with lun id 0, and see if we can
852: * find a matching device
853: */
854: status = xpt_create_path(&path, /*periph*/ periph,
855: cgd->ccb_h.path_id,
856: cgd->ccb_h.target_id, 0);
857:
858: if ((status == CAM_REQ_CMP)
859: && ((nperiph = cam_periph_find(path, "cd")) != NULL)){
860: struct cd_softc *nsoftc;
861:
862: nsoftc = (struct cd_softc *)nperiph->softc;
863:
864: if ((nsoftc->flags & CD_FLAG_CHANGER) == 0){
865: nsoftc->flags |= CD_FLAG_CHANGER;
866: nchanger->num_devices++;
867: if (camq_resize(&nchanger->devq,
868: nchanger->num_devices)!=CAM_REQ_CMP){
869: printf("cdregister: "
870: "camq_resize "
871: "failed, changer "
872: "support may "
873: "be messed up\n");
874: }
875: nsoftc->changer = nchanger;
876: nsoftc->pinfo.index =CAM_UNQUEUED_INDEX;
877:
878: STAILQ_INSERT_TAIL(&nchanger->chluns,
879: nsoftc,changer_links);
880: }
881: xpt_free_path(path);
882: } else if (status == CAM_REQ_CMP)
883: xpt_free_path(path);
884: else {
885: printf("cdregister: unable to allocate path\n"
886: "cdregister: changer support may be "
887: "broken\n");
888: }
889:
890: nchanger->num_devices++;
891:
892: softc->changer = nchanger;
893: softc->pinfo.index = CAM_UNQUEUED_INDEX;
894:
895: if (camq_resize(&nchanger->devq,
896: nchanger->num_devices) != CAM_REQ_CMP) {
897: printf("cdregister: camq_resize "
898: "failed, changer support may "
899: "be messed up\n");
900: }
901:
902: STAILQ_INSERT_TAIL(chlunhead, softc, changer_links);
903: }
904: /*
905: * In this case, we don't already have an entry for this
906: * particular changer, so we need to create one, add it to
907: * the queue, and queue this device on the list for this
908: * changer. Before we queue this device, however, we need
909: * to search for lun id 0 on this target, and add it to the
910: * queue first, if it exists. (and if it hasn't already
911: * been marked as part of the changer.)
912: */
913: else {
914: nchanger = malloc(sizeof(struct cdchanger),
915: M_DEVBUF, M_INTWAIT | M_ZERO);
916:
917: if (camq_init(&nchanger->devq, 1) != 0) {
918: softc->flags &= ~CD_FLAG_CHANGER;
919: printf("cdregister: changer support "
920: "disabled\n");
921: goto cdregisterexit;
922: }
923:
924: num_changers++;
925:
926: nchanger->path_id = cgd->ccb_h.path_id;
927: nchanger->target_id = cgd->ccb_h.target_id;
928:
929: /* this is superfluous, but it makes things clearer */
930: nchanger->num_devices = 0;
931:
932: STAILQ_INIT(&nchanger->chluns);
933:
934: STAILQ_INSERT_TAIL(&changerq, nchanger,
935: changer_links);
936:
937: /*
938: * Create a path with lun id 0, and see if we can
939: * find a matching device
940: */
941: status = xpt_create_path(&path, /*periph*/ periph,
942: cgd->ccb_h.path_id,
943: cgd->ccb_h.target_id, 0);
944:
945: /*
946: * If we were able to allocate the path, and if we
947: * find a matching device and it isn't already
948: * marked as part of a changer, then we add it to
949: * the current changer.
950: */
951: if ((status == CAM_REQ_CMP)
952: && ((nperiph = cam_periph_find(path, "cd")) != NULL)
953: && ((((struct cd_softc *)periph->softc)->flags &
954: CD_FLAG_CHANGER) == 0)) {
955: struct cd_softc *nsoftc;
956:
957: nsoftc = (struct cd_softc *)nperiph->softc;
958:
959: nsoftc->flags |= CD_FLAG_CHANGER;
960: nchanger->num_devices++;
961: if (camq_resize(&nchanger->devq,
962: nchanger->num_devices) != CAM_REQ_CMP) {
963: printf("cdregister: camq_resize "
964: "failed, changer support may "
965: "be messed up\n");
966: }
967: nsoftc->changer = nchanger;
968: nsoftc->pinfo.index = CAM_UNQUEUED_INDEX;
969:
970: STAILQ_INSERT_TAIL(&nchanger->chluns,
971: nsoftc, changer_links);
972: xpt_free_path(path);
973: } else if (status == CAM_REQ_CMP)
974: xpt_free_path(path);
975: else {
976: printf("cdregister: unable to allocate path\n"
977: "cdregister: changer support may be "
978: "broken\n");
979: }
980:
981: softc->changer = nchanger;
982: softc->pinfo.index = CAM_UNQUEUED_INDEX;
983: nchanger->num_devices++;
984: if (camq_resize(&nchanger->devq,
985: nchanger->num_devices) != CAM_REQ_CMP) {
986: printf("cdregister: camq_resize "
987: "failed, changer support may "
988: "be messed up\n");
989: }
990: STAILQ_INSERT_TAIL(&nchanger->chluns, softc,
991: changer_links);
992: }
993: }
994:
995: cdregisterexit:
996:
997: /* Lock this peripheral until we are setup */
998: /* Can't block */
999: cam_periph_lock(periph, 0);
1000:
1001: if ((softc->flags & CD_FLAG_CHANGER) == 0)
1002: xpt_schedule(periph, /*priority*/5);
1003: else
1004: cdschedule(periph, /*priority*/ 5);
1005:
1006: return(CAM_REQ_CMP);
1007: }
1008:
1009: static int
1010: cdopen(dev_t dev, int flags, int fmt, struct thread *td)
1011: {
1012: struct cam_periph *periph;
1013: struct cd_softc *softc;
1014: int unit, error;
1015: int s;
1016:
1017: unit = dkunit(dev);
1018: periph = cam_extend_get(cdperiphs, unit);
1019:
1020: if (periph == NULL)
1021: return (ENXIO);
1022:
1023: softc = (struct cd_softc *)periph->softc;
1024:
1025: /*
1026: * Grab splsoftcam and hold it until we lock the peripheral.
1027: */
1028: s = splsoftcam();
1029: if (softc->flags & CD_FLAG_INVALID) {
1030: splx(s);
1031: return(ENXIO);
1032: }
1033:
1034: if ((error = cam_periph_lock(periph, PCATCH)) != 0) {
1035: splx(s);
1036: return (error);
1037: }
1038:
1039: splx(s);
1040:
1041: if (cam_periph_acquire(periph) != CAM_REQ_CMP)
1042: return(ENXIO);
1043:
1044: /*
1045: * Check for media, and set the appropriate flags. We don't bail
1046: * if we don't have media, but then we don't allow anything but the
1047: * CDIOCEJECT/CDIOCCLOSE ioctls if there is no media.
1048: *
1049: * XXX KDM for now, we do fail the open if we don't have media. We
1050: * can change this once we've figured out how to make the slice
1051: * code work well with media changing underneath it.
1052: */
1053: error = cdcheckmedia(periph);
1054:
1055: if (error == 0)
1056: softc->flags |= CD_FLAG_OPEN;
1057:
1058: cam_periph_unlock(periph);
1059:
1060: CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdopen\n"));
1061:
1062: return (error);
1063: }
1064:
1065: static int
1066: cdclose(dev_t dev, int flag, int fmt, struct thread *td)
1067: {
1068: struct cam_periph *periph;
1069: struct cd_softc *softc;
1070: int unit, error;
1071:
1072: unit = dkunit(dev);
1073: periph = cam_extend_get(cdperiphs, unit);
1074: if (periph == NULL)
1075: return (ENXIO);
1076:
1077: softc = (struct cd_softc *)periph->softc;
1078:
1079: if ((error = cam_periph_lock(periph, 0)) != 0)
1080: return (error);
1081:
1082: if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)
1083: cdprevent(periph, PR_ALLOW);
1084:
1085: /*
1086: * Unconditionally set the dsopen() flags back to their default
1087: * state.
1088: */
1089: softc->disk.d_dsflags &= ~DSO_NOLABELS;
1090: softc->disk.d_dsflags |= DSO_COMPATLABEL;
1091:
1092: /*
1093: * Since we're closing this CD, mark the blocksize as unavailable.
1094: * It will be marked as available when the CD is opened again.
1095: */
1096: softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE;
1097:
1098: /*
1099: * We'll check the media and toc again at the next open().
1100: */
1101: softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
1102:
1103: softc->flags &= ~CD_FLAG_OPEN;
1104:
1105: cam_periph_unlock(periph);
1106: cam_periph_release(periph);
1107:
1108: return (0);
1109: }
1110:
1111: static void
1112: cdshorttimeout(void *arg)
1113: {
1114: struct cdchanger *changer;
1115: int s;
1116:
1117: s = splsoftcam();
1118:
1119: changer = (struct cdchanger *)arg;
1120:
1121: /* Always clear the short timeout flag, since that's what we're in */
1122: changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
1123:
1124: /*
1125: * Check to see if there is any more pending or outstanding I/O for
1126: * this device. If not, move it out of the active slot.
1127: */
1128: if ((bufq_first(&changer->cur_device->buf_queue) == NULL)
1129: && (changer->cur_device->device_stats.busy_count == 0)) {
1130: changer->flags |= CHANGER_MANUAL_CALL;
1131: cdrunchangerqueue(changer);
1132: }
1133:
1134: splx(s);
1135: }
1136:
1137: /*
1138: * This is a wrapper for xpt_schedule. It only applies to changers.
1139: */
1140: static void
1141: cdschedule(struct cam_periph *periph, int priority)
1142: {
1143: struct cd_softc *softc;
1144: int s;
1145:
1146: s = splsoftcam();
1147:
1148: softc = (struct cd_softc *)periph->softc;
1149:
1150: /*
1151: * If this device isn't currently queued, and if it isn't
1152: * the active device, then we queue this device and run the
1153: * changer queue if there is no timeout scheduled to do it.
1154: * If this device is the active device, just schedule it
1155: * to run again. If this device is queued, there should be
1156: * a timeout in place already that will make sure it runs.
1157: */
1158: if ((softc->pinfo.index == CAM_UNQUEUED_INDEX)
1159: && ((softc->flags & CD_FLAG_ACTIVE) == 0)) {
1160: /*
1161: * We don't do anything with the priority here.
1162: * This is strictly a fifo queue.
1163: */
1164: softc->pinfo.priority = 1;
1165: softc->pinfo.generation = ++softc->changer->devq.generation;
1166: camq_insert(&softc->changer->devq, (cam_pinfo *)softc);
1167:
1168: /*
1169: * Since we just put a device in the changer queue,
1170: * check and see if there is a timeout scheduled for
1171: * this changer. If so, let the timeout handle
1172: * switching this device into the active slot. If
1173: * not, manually call the timeout routine to
1174: * bootstrap things.
1175: */
1176: if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0)
1177: && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)
1178: && ((softc->changer->flags & CHANGER_SHORT_TMOUT_SCHED)==0)){
1179: softc->changer->flags |= CHANGER_MANUAL_CALL;
1180: cdrunchangerqueue(softc->changer);
1181: }
1182: } else if ((softc->flags & CD_FLAG_ACTIVE)
1183: && ((softc->flags & CD_FLAG_SCHED_ON_COMP) == 0))
1184: xpt_schedule(periph, priority);
1185:
1186: splx(s);
1187:
1188: }
1189:
1190: static void
1191: cdrunchangerqueue(void *arg)
1192: {
1193: struct cd_softc *softc;
1194: struct cdchanger *changer;
1195: int called_from_timeout;
1196: int s;
1197:
1198: s = splsoftcam();
1199:
1200: changer = (struct cdchanger *)arg;
1201:
1202: /*
1203: * If we have NOT been called from cdstrategy() or cddone(), and
1204: * instead from a timeout routine, go ahead and clear the
1205: * timeout flag.
1206: */
1207: if ((changer->flags & CHANGER_MANUAL_CALL) == 0) {
1208: changer->flags &= ~CHANGER_TIMEOUT_SCHED;
1209: called_from_timeout = 1;
1210: } else
1211: called_from_timeout = 0;
1212:
1213: /* Always clear the manual call flag */
1214: changer->flags &= ~CHANGER_MANUAL_CALL;
1215:
1216: /* nothing to do if the queue is empty */
1217: if (changer->devq.entries <= 0) {
1218: splx(s);
1219: return;
1220: }
1221:
1222: /*
1223: * If the changer queue is frozen, that means we have an active
1224: * device.
1225: */
1226: if (changer->devq.qfrozen_cnt > 0) {
1227:
1228: if (changer->cur_device->device_stats.busy_count > 0) {
1229: changer->cur_device->flags |= CD_FLAG_SCHED_ON_COMP;
1230: changer->cur_device->bufs_left =
1231: changer->cur_device->device_stats.busy_count;
1232: if (called_from_timeout) {
1233: changer->long_handle =
1234: timeout(cdrunchangerqueue, changer,
1235: changer_max_busy_seconds * hz);
1236: changer->flags |= CHANGER_TIMEOUT_SCHED;
1237: }
1238: splx(s);
1239: return;
1240: }
1241:
1242: /*
1243: * We always need to reset the frozen count and clear the
1244: * active flag.
1245: */
1246: changer->devq.qfrozen_cnt--;
1247: changer->cur_device->flags &= ~CD_FLAG_ACTIVE;
1248: changer->cur_device->flags &= ~CD_FLAG_SCHED_ON_COMP;
1249:
1250: /*
1251: * Check to see whether the current device has any I/O left
1252: * to do. If so, requeue it at the end of the queue. If
1253: * not, there is no need to requeue it.
1254: */
1255: if (bufq_first(&changer->cur_device->buf_queue) != NULL) {
1256:
1257: changer->cur_device->pinfo.generation =
1258: ++changer->devq.generation;
1259: camq_insert(&changer->devq,
1260: (cam_pinfo *)changer->cur_device);
1261: }
1262: }
1263:
1264: softc = (struct cd_softc *)camq_remove(&changer->devq, CAMQ_HEAD);
1265:
1266: changer->cur_device = softc;
1267:
1268: changer->devq.qfrozen_cnt++;
1269: softc->flags |= CD_FLAG_ACTIVE;
1270:
1271: /* Just in case this device is waiting */
1272: wakeup(&softc->changer);
1273: xpt_schedule(softc->periph, /*priority*/ 1);
1274:
1275: /*
1276: * Get rid of any pending timeouts, and set a flag to schedule new
1277: * ones so this device gets its full time quantum.
1278: */
1279: if (changer->flags & CHANGER_TIMEOUT_SCHED) {
1280: untimeout(cdrunchangerqueue, changer, changer->long_handle);
1281: changer->flags &= ~CHANGER_TIMEOUT_SCHED;
1282: }
1283:
1284: if (changer->flags & CHANGER_SHORT_TMOUT_SCHED) {
1285: untimeout(cdshorttimeout, changer, changer->short_handle);
1286: changer->flags &= ~CHANGER_SHORT_TMOUT_SCHED;
1287: }
1288:
1289: /*
1290: * We need to schedule timeouts, but we only do this after the
1291: * first transaction has completed. This eliminates the changer
1292: * switch time.
1293: */
1294: changer->flags |= CHANGER_NEED_TIMEOUT;
1295:
1296: splx(s);
1297: }
1298:
1299: static void
1300: cdchangerschedule(struct cd_softc *softc)
1301: {
1302: struct cdchanger *changer;
1303: int s;
1304:
1305: s = splsoftcam();
1306:
1307: changer = softc->changer;
1308:
1309: /*
1310: * If this is a changer, and this is the current device,
1311: * and this device has at least the minimum time quantum to
1312: * run, see if we can switch it out.
1313: */
1314: if ((softc->flags & CD_FLAG_ACTIVE)
1315: && ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0)
1316: && ((changer->flags & CHANGER_NEED_TIMEOUT) == 0)) {
1317: /*
1318: * We try three things here. The first is that we
1319: * check to see whether the schedule on completion
1320: * flag is set. If it is, we decrement the number
1321: * of buffers left, and if it's zero, we reschedule.
1322: * Next, we check to see whether the pending buffer
1323: * queue is empty and whether there are no
1324: * outstanding transactions. If so, we reschedule.
1325: * Next, we see if the pending buffer queue is empty.
1326: * If it is, we set the number of buffers left to
1327: * the current active buffer count and set the
1328: * schedule on complete flag.
1329: */
1330: if (softc->flags & CD_FLAG_SCHED_ON_COMP) {
1331: if (--softc->bufs_left == 0) {
1332: softc->changer->flags |=
1333: CHANGER_MANUAL_CALL;
1334: softc->flags &= ~CD_FLAG_SCHED_ON_COMP;
1335: cdrunchangerqueue(softc->changer);
1336: }
1337: } else if ((bufq_first(&softc->buf_queue) == NULL)
1338: && (softc->device_stats.busy_count == 0)) {
1339: softc->changer->flags |= CHANGER_MANUAL_CALL;
1340: cdrunchangerqueue(softc->changer);
1341: }
1342: } else if ((softc->changer->flags & CHANGER_NEED_TIMEOUT)
1343: && (softc->flags & CD_FLAG_ACTIVE)) {
1344:
1345: /*
1346: * Now that the first transaction to this
1347: * particular device has completed, we can go ahead
1348: * and schedule our timeouts.
1349: */
1350: if ((changer->flags & CHANGER_TIMEOUT_SCHED) == 0) {
1351: changer->long_handle =
1352: timeout(cdrunchangerqueue, changer,
1353: changer_max_busy_seconds * hz);
1354: changer->flags |= CHANGER_TIMEOUT_SCHED;
1355: } else
1356: printf("cdchangerschedule: already have a long"
1357: " timeout!\n");
1358:
1359: if ((changer->flags & CHANGER_SHORT_TMOUT_SCHED) == 0) {
1360: changer->short_handle =
1361: timeout(cdshorttimeout, changer,
1362: changer_min_busy_seconds * hz);
1363: changer->flags |= CHANGER_SHORT_TMOUT_SCHED;
1364: } else
1365: printf("cdchangerschedule: already have a short "
1366: "timeout!\n");
1367:
1368: /*
1369: * We just scheduled timeouts, no need to schedule
1370: * more.
1371: */
1372: changer->flags &= ~CHANGER_NEED_TIMEOUT;
1373:
1374: }
1375: splx(s);
1376: }
1377:
1378: static int
1379: cdrunccb(union ccb *ccb, int (*error_routine)(union ccb *ccb,
1380: u_int32_t cam_flags,
1381: u_int32_t sense_flags),
1382: u_int32_t cam_flags, u_int32_t sense_flags)
1383: {
1384: struct cd_softc *softc;
1385: struct cam_periph *periph;
1386: int error;
1387:
1388: periph = xpt_path_periph(ccb->ccb_h.path);
1389: softc = (struct cd_softc *)periph->softc;
1390:
1391: error = cam_periph_runccb(ccb, error_routine, cam_flags, sense_flags,
1392: &softc->device_stats);
1393:
1394: if (softc->flags & CD_FLAG_CHANGER)
1395: cdchangerschedule(softc);
1396:
1397: return(error);
1398: }
1399:
1400: static union ccb *
1401: cdgetccb(struct cam_periph *periph, u_int32_t priority)
1402: {
1403: struct cd_softc *softc;
1404: int s;
1405:
1406: softc = (struct cd_softc *)periph->softc;
1407:
1408: if (softc->flags & CD_FLAG_CHANGER) {
1409:
1410: s = splsoftcam();
1411:
1412: /*
1413: * This should work the first time this device is woken up,
1414: * but just in case it doesn't, we use a while loop.
1415: */
1416: while ((softc->flags & CD_FLAG_ACTIVE) == 0) {
1417: /*
1418: * If this changer isn't already queued, queue it up.
1419: */
1420: if (softc->pinfo.index == CAM_UNQUEUED_INDEX) {
1421: softc->pinfo.priority = 1;
1422: softc->pinfo.generation =
1423: ++softc->changer->devq.generation;
1424: camq_insert(&softc->changer->devq,
1425: (cam_pinfo *)softc);
1426: }
1427: if (((softc->changer->flags & CHANGER_TIMEOUT_SCHED)==0)
1428: && ((softc->changer->flags & CHANGER_NEED_TIMEOUT)==0)
1429: && ((softc->changer->flags
1430: & CHANGER_SHORT_TMOUT_SCHED)==0)) {
1431: softc->changer->flags |= CHANGER_MANUAL_CALL;
1432: cdrunchangerqueue(softc->changer);
1433: } else
1434: tsleep(&softc->changer, 0, "cgticb", 0);
1435: }
1436: splx(s);
1437: }
1438: return(cam_periph_getccb(periph, priority));
1439: }
1440:
1441:
1442: /*
1443: * Actually translate the requested transfer into one the physical driver
1444: * can understand. The transfer is described by a buf and will include
1445: * only one physical transfer.
1446: */
1447: static void
1448: cdstrategy(struct buf *bp)
1449: {
1450: struct cam_periph *periph;
1451: struct cd_softc *softc;
1452: u_int unit, part;
1453: int s;
1454:
1455: unit = dkunit(bp->b_dev);
1456: part = dkpart(bp->b_dev);
1457: periph = cam_extend_get(cdperiphs, unit);
1458: if (periph == NULL) {
1459: bp->b_error = ENXIO;
1460: goto bad;
1461: }
1462:
1463: CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstrategy\n"));
1464:
1465: softc = (struct cd_softc *)periph->softc;
1466:
1467: /*
1468: * Mask interrupts so that the pack cannot be invalidated until
1469: * after we are in the queue. Otherwise, we might not properly
1470: * clean up one of the buffers.
1471: */
1472: s = splbio();
1473:
1474: /*
1475: * If the device has been made invalid, error out
1476: */
1477: if ((softc->flags & CD_FLAG_INVALID)) {
1478: splx(s);
1479: bp->b_error = ENXIO;
1480: goto bad;
1481: }
1482:
1483: /*
1484: * If we don't have valid media, look for it before trying to
1485: * schedule the I/O.
1486: */
1487: if ((softc->flags & CD_FLAG_VALID_MEDIA) == 0) {
1488: int error;
1489:
1490: error = cdcheckmedia(periph);
1491: if (error != 0) {
1492: splx(s);
1493: bp->b_error = error;
1494: goto bad;
1495: }
1496: }
1497:
1498: /*
1499: * Place it in the queue of disk activities for this disk
1500: */
1501: bufqdisksort(&softc->buf_queue, bp);
1502:
1503: splx(s);
1504:
1505: /*
1506: * Schedule ourselves for performing the work. We do things
1507: * differently for changers.
1508: */
1509: if ((softc->flags & CD_FLAG_CHANGER) == 0)
1510: xpt_schedule(periph, /* XXX priority */1);
1511: else
1512: cdschedule(periph, /* priority */ 1);
1513:
1514: return;
1515: bad:
1516: bp->b_flags |= B_ERROR;
1517: /*
1518: * Correctly set the buf to indicate a completed xfer
1519: */
1520: bp->b_resid = bp->b_bcount;
1521: biodone(bp);
1522: return;
1523: }
1524:
1525: static void
1526: cdstart(struct cam_periph *periph, union ccb *start_ccb)
1527: {
1528: struct cd_softc *softc;
1529: struct buf *bp;
1530: struct ccb_scsiio *csio;
1531: struct scsi_read_capacity_data *rcap;
1532: int s;
1533:
1534: softc = (struct cd_softc *)periph->softc;
1535:
1536: CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdstart\n"));
1537:
1538: switch (softc->state) {
1539: case CD_STATE_NORMAL:
1540: {
1541: int oldspl;
1542:
1543: s = splbio();
1544: bp = bufq_first(&softc->buf_queue);
1545: if (periph->immediate_priority <= periph->pinfo.priority) {
1546: start_ccb->ccb_h.ccb_state = CD_CCB_WAITING;
1547:
1548: SLIST_INSERT_HEAD(&periph->ccb_list, &start_ccb->ccb_h,
1549: periph_links.sle);
1550: periph->immediate_priority = CAM_PRIORITY_NONE;
1551: splx(s);
1552: wakeup(&periph->ccb_list);
1553: } else if (bp == NULL) {
1554: splx(s);
1555: xpt_release_ccb(start_ccb);
1556: } else {
1557: bufq_remove(&softc->buf_queue, bp);
1558:
1559: devstat_start_transaction(&softc->device_stats);
1560:
1561: scsi_read_write(&start_ccb->csio,
1562: /*retries*/4,
1563: /* cbfcnp */ cddone,
1564: (bp->b_flags & B_ORDERED) != 0 ?
1565: MSG_ORDERED_Q_TAG :
1566: MSG_SIMPLE_Q_TAG,
1567: /* read */bp->b_flags & B_READ,
1568: /* byte2 */ 0,
1569: /* minimum_cmd_size */ 10,
1570: /* lba */ bp->b_pblkno,
1571: bp->b_bcount / softc->params.blksize,
1572: /* data_ptr */ bp->b_data,
1573: /* dxfer_len */ bp->b_bcount,
1574: /* sense_len */ SSD_FULL_SIZE,
1575: /* timeout */ 30000);
1576: start_ccb->ccb_h.ccb_state = CD_CCB_BUFFER_IO;
1577:
1578:
1579: /*
1580: * Block out any asyncronous callbacks
1581: * while we touch the pending ccb list.
1582: */
1583: oldspl = splcam();
1584: LIST_INSERT_HEAD(&softc->pending_ccbs,
1585: &start_ccb->ccb_h, periph_links.le);
1586: splx(oldspl);
1587:
1588: /* We expect a unit attention from this device */
1589: if ((softc->flags & CD_FLAG_RETRY_UA) != 0) {
1590: start_ccb->ccb_h.ccb_state |= CD_CCB_RETRY_UA;
1591: softc->flags &= ~CD_FLAG_RETRY_UA;
1592: }
1593:
1594: start_ccb->ccb_h.ccb_bp = bp;
1595: bp = bufq_first(&softc->buf_queue);
1596: splx(s);
1597:
1598: xpt_action(start_ccb);
1599: }
1600: if (bp != NULL) {
1601: /* Have more work to do, so ensure we stay scheduled */
1602: xpt_schedule(periph, /* XXX priority */1);
1603: }
1604: break;
1605: }
1606: case CD_STATE_PROBE:
1607: {
1608:
1609: rcap = malloc(sizeof(*rcap), M_TEMP, M_INTWAIT);
1610: csio = &start_ccb->csio;
1611: scsi_read_capacity(csio,
1612: /*retries*/1,
1613: cddone,
1614: MSG_SIMPLE_Q_TAG,
1615: rcap,
1616: SSD_FULL_SIZE,
1617: /*timeout*/20000);
1618: start_ccb->ccb_h.ccb_bp = NULL;
1619: start_ccb->ccb_h.ccb_state = CD_CCB_PROBE;
1620: xpt_action(start_ccb);
1621: break;
1622: }
1623: }
1624: }
1625:
1626: static void
1627: cddone(struct cam_periph *periph, union ccb *done_ccb)
1628: {
1629: struct cd_softc *softc;
1630: struct ccb_scsiio *csio;
1631:
1632: CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cddone\n"));
1633:
1634: softc = (struct cd_softc *)periph->softc;
1635: csio = &done_ccb->csio;
1636:
1637: switch (csio->ccb_h.ccb_state & CD_CCB_TYPE_MASK) {
1638: case CD_CCB_BUFFER_IO:
1639: {
1640: struct buf *bp;
1641: int error;
1642: int oldspl;
1643:
1644: bp = (struct buf *)done_ccb->ccb_h.ccb_bp;
1645: error = 0;
1646:
1647: if ((done_ccb->ccb_h.status & CAM_STATUS_MASK) != CAM_REQ_CMP) {
1648: int sf;
1649:
1650: if ((done_ccb->ccb_h.ccb_state & CD_CCB_RETRY_UA) != 0)
1651: sf = SF_RETRY_UA;
1652: else
1653: sf = 0;
1654:
1655: /* Retry selection timeouts */
1656: sf |= SF_RETRY_SELTO;
1657:
1658: if ((error = cderror(done_ccb, 0, sf)) == ERESTART) {
1659: /*
1660: * A retry was scheuled, so
1661: * just return.
1662: */
1663: return;
1664: }
1665: }
1666:
1667: if (error != 0) {
1668: int s;
1669: struct buf *q_bp;
1670:
1671: xpt_print_path(periph->path);
1672: printf("cddone: got error %#x back\n", error);
1673: s = splbio();
1674: while ((q_bp = bufq_first(&softc->buf_queue)) != NULL) {
1675: bufq_remove(&softc->buf_queue, q_bp);
1676: q_bp->b_resid = q_bp->b_bcount;
1677: q_bp->b_error = EIO;
1678: q_bp->b_flags |= B_ERROR;
1679: biodone(q_bp);
1680: }
1681: splx(s);
1682: bp->b_resid = bp->b_bcount;
1683: bp->b_error = error;
1684: bp->b_flags |= B_ERROR;
1685: cam_release_devq(done_ccb->ccb_h.path,
1686: /*relsim_flags*/0,
1687: /*reduction*/0,
1688: /*timeout*/0,
1689: /*getcount_only*/0);
1690:
1691: } else {
1692: bp->b_resid = csio->resid;
1693: bp->b_error = 0;
1694: if (bp->b_resid != 0) {
1695: /* Short transfer ??? */
1696: bp->b_flags |= B_ERROR;
1697: }
1698: }
1699:
1700: /*
1701: * Block out any asyncronous callbacks
1702: * while we touch the pending ccb list.
1703: */
1704: oldspl = splcam();
1705: LIST_REMOVE(&done_ccb->ccb_h, periph_links.le);
1706: splx(oldspl);
1707:
1708: if (softc->flags & CD_FLAG_CHANGER)
1709: cdchangerschedule(softc);
1710:
1711: devstat_end_transaction_buf(&softc->device_stats, bp);
1712: biodone(bp);
1713: break;
1714: }
1715: case CD_CCB_PROBE:
1716: {
1717: struct scsi_read_capacity_data *rdcap;
1718: char announce_buf[120]; /*
1719: * Currently (9/30/97) the
1720: * longest possible announce
1721: * buffer is 108 bytes, for the
1722: * first error case below.
1723: * That is 39 bytes for the
1724: * basic string, 16 bytes for the
1725: * biggest sense key (hardware
1726: * error), 52 bytes for the
1727: * text of the largest sense
1728: * qualifier valid for a CDROM,
1729: * (0x72, 0x03 or 0x04,
1730: * 0x03), and one byte for the
1731: * null terminating character.
1732: * To allow for longer strings,
1733: * the announce buffer is 120
1734: * bytes.
1735: */
1736: struct cd_params *cdp;
1737:
1738: cdp = &softc->params;
1739:
1740: rdcap = (struct scsi_read_capacity_data *)csio->data_ptr;
1741:
1742: cdp->disksize = scsi_4btoul (rdcap->addr) + 1;
1743: cdp->blksize = scsi_4btoul (rdcap->length);
1744:
1745: if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
1746:
1747: snprintf(announce_buf, sizeof(announce_buf),
1748: "cd present [%lu x %lu byte records]",
1749: cdp->disksize, (u_long)cdp->blksize);
1750:
1751: } else {
1752: int error;
1753: /*
1754: * Retry any UNIT ATTENTION type errors. They
1755: * are expected at boot.
1756: */
1757: error = cderror(done_ccb, 0, SF_RETRY_UA |
1758: SF_NO_PRINT | SF_RETRY_SELTO);
1759: if (error == ERESTART) {
1760: /*
1761: * A retry was scheuled, so
1762: * just return.
1763: */
1764: return;
1765: } else if (error != 0) {
1766:
1767: struct scsi_sense_data *sense;
1768: int asc, ascq;
1769: int sense_key, error_code;
1770: int have_sense;
1771: cam_status status;
1772: struct ccb_getdev cgd;
1773:
1774: /* Don't wedge this device's queue */
1775: cam_release_devq(done_ccb->ccb_h.path,
1776: /*relsim_flags*/0,
1777: /*reduction*/0,
1778: /*timeout*/0,
1779: /*getcount_only*/0);
1780:
1781: status = done_ccb->ccb_h.status;
1782:
1783: xpt_setup_ccb(&cgd.ccb_h,
1784: done_ccb->ccb_h.path,
1785: /* priority */ 1);
1786: cgd.ccb_h.func_code = XPT_GDEV_TYPE;
1787: xpt_action((union ccb *)&cgd);
1788:
1789: if (((csio->ccb_h.flags & CAM_SENSE_PHYS) != 0)
1790: || ((csio->ccb_h.flags & CAM_SENSE_PTR) != 0)
1791: || ((status & CAM_AUTOSNS_VALID) == 0))
1792: have_sense = FALSE;
1793: else
1794: have_sense = TRUE;
1795:
1796: if (have_sense) {
1797: sense = &csio->sense_data;
1798: scsi_extract_sense(sense, &error_code,
1799: &sense_key,
1800: &asc, &ascq);
1801: }
1802: /*
1803: * Attach to anything that claims to be a
1804: * CDROM or WORM device, as long as it
1805: * doesn't return a "Logical unit not
1806: * supported" (0x25) error.
1807: */
1808: if ((have_sense) && (asc != 0x25)
1809: && (error_code == SSD_CURRENT_ERROR))
1810: snprintf(announce_buf,
1811: sizeof(announce_buf),
1812: "Attempt to query device "
1813: "size failed: %s, %s",
1814: scsi_sense_key_text[sense_key],
1815: scsi_sense_desc(asc,ascq,
1816: &cgd.inq_data));
1817: else if ((have_sense == 0)
1818: && ((status & CAM_STATUS_MASK) ==
1819: CAM_SCSI_STATUS_ERROR)
1820: && (csio->scsi_status ==
1821: SCSI_STATUS_BUSY)) {
1822: snprintf(announce_buf,
1823: sizeof(announce_buf),
1824: "Attempt to query device "
1825: "size failed: SCSI status: BUSY");
1826: } else if (SID_TYPE(&cgd.inq_data) == T_CDROM) {
1827: /*
1828: * We only print out an error for
1829: * CDROM type devices. For WORM
1830: * devices, we don't print out an
1831: * error since a few WORM devices
1832: * don't support CDROM commands.
1833: * If we have sense information, go
1834: * ahead and print it out.
1835: * Otherwise, just say that we
1836: * couldn't attach.
1837: */
1838:
1839: /*
1840: * Just print out the error, not
1841: * the full probe message, when we
1842: * don't attach.
1843: */
1844: if (have_sense)
1845: scsi_sense_print(
1846: &done_ccb->csio);
1847: else {
1848: xpt_print_path(periph->path);
1849: printf("got CAM status %#x\n",
1850: done_ccb->ccb_h.status);
1851: }
1852: xpt_print_path(periph->path);
1853: printf("fatal error, failed"
1854: " to attach to device\n");
1855:
1856: /*
1857: * Invalidate this peripheral.
1858: */
1859: cam_periph_invalidate(periph);
1860:
1861: announce_buf[0] = '\0';
1862: } else {
1863:
1864: /*
1865: * Invalidate this peripheral.
1866: */
1867: cam_periph_invalidate(periph);
1868: announce_buf[0] = '\0';
1869: }
1870: }
1871: }
1872: free(rdcap, M_TEMP);
1873: if (announce_buf[0] != '\0') {
1874: xpt_announce_periph(periph, announce_buf);
1875: if (softc->flags & CD_FLAG_CHANGER)
1876: cdchangerschedule(softc);
1877: /*
1878: * Create our sysctl variables, now that we know
1879: * we have successfully attached.
1880: */
1881: taskqueue_enqueue(taskqueue_thread,&softc->sysctl_task);
1882: }
1883: softc->state = CD_STATE_NORMAL;
1884: /*
1885: * Since our peripheral may be invalidated by an error
1886: * above or an external event, we must release our CCB
1887: * before releasing the probe lock on the peripheral.
1888: * The peripheral will only go away once the last lock
1889: * is removed, and we need it around for the CCB release
1890: * operation.
1891: */
1892: xpt_release_ccb(done_ccb);
1893: cam_periph_unlock(periph);
1894: return;
1895: }
1896: case CD_CCB_WAITING:
1897: {
1898: /* Caller will release the CCB */
1899: CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1900: ("trying to wakeup ccbwait\n"));
1901:
1902: wakeup(&done_ccb->ccb_h.cbfcnp);
1903: return;
1904: }
1905: default:
1906: break;
1907: }
1908: xpt_release_ccb(done_ccb);
1909: }
1910:
1911: static union cd_pages *
1912: cdgetpage(struct cd_mode_params *mode_params)
1913: {
1914: union cd_pages *page;
1915:
1916: if (mode_params->cdb_size == 10)
1917: page = (union cd_pages *)find_mode_page_10(
1918: (struct scsi_mode_header_10 *)mode_params->mode_buf);
1919: else
1920: page = (union cd_pages *)find_mode_page_6(
1921: (struct scsi_mode_header_6 *)mode_params->mode_buf);
1922:
1923: return (page);
1924: }
1925:
1926: static int
1927: cdgetpagesize(int page_num)
1928: {
1929: int i;
1930:
1931: for (i = 0; i < (sizeof(cd_page_size_table)/
1932: sizeof(cd_page_size_table[0])); i++) {
1933: if (cd_page_size_table[i].page == page_num)
1934: return (cd_page_size_table[i].page_size);
1935: }
1936: return (-1);
1937: }
1938:
1939: static int
1940: cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
1941: {
1942:
1943: struct cam_periph *periph;
1944: struct cd_softc *softc;
1945: int error, unit;
1946:
1947: unit = dkunit(dev);
1948:
1949: periph = cam_extend_get(cdperiphs, unit);
1950: if (periph == NULL)
1951: return(ENXIO);
1952:
1953: CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdioctl\n"));
1954:
1955: softc = (struct cd_softc *)periph->softc;
1956:
1957: CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
1958: ("trying to do ioctl %#lx\n", cmd));
1959:
1960: error = cam_periph_lock(periph, PCATCH);
1961:
1962: if (error != 0)
1963: return(error);
1964:
1965: /*
1966: * If we don't have media loaded, check for it. If still don't
1967: * have media loaded, we can only do a load or eject.
1968: */
1969: if (((softc->flags & CD_FLAG_VALID_MEDIA) == 0)
1970: && ((cmd != CDIOCCLOSE)
1971: && (cmd != CDIOCEJECT))) {
1972: error = cdcheckmedia(periph);
1973: if (error != 0) {
1974: cam_periph_unlock(periph);
1975: return (error);
1976: }
1977: }
1978:
1979: switch (cmd) {
1980:
1981: case CDIOCPLAYTRACKS:
1982: {
1983: struct ioc_play_track *args
1984: = (struct ioc_play_track *) addr;
1985: struct cd_mode_params params;
1986: union cd_pages *page;
1987:
1988: params.alloc_len = sizeof(union cd_mode_data_6_10);
1989: params.mode_buf = malloc(params.alloc_len, M_TEMP,
1990: M_INTWAIT | M_ZERO);
1991:
1992: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
1993: ("trying to do CDIOCPLAYTRACKS\n"));
1994:
1995: error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
1996: if (error) {
1997: free(params.mode_buf, M_TEMP);
1998: break;
1999: }
2000: page = cdgetpage(¶ms);
2001:
2002: page->audio.flags &= ~CD_PA_SOTC;
2003: page->audio.flags |= CD_PA_IMMED;
2004: error = cdsetmode(periph, ¶ms);
2005: free(params.mode_buf, M_TEMP);
2006: if (error)
2007: break;
2008:
2009: /*
2010: * This was originally implemented with the PLAY
2011: * AUDIO TRACK INDEX command, but that command was
2012: * deprecated after SCSI-2. Most (all?) SCSI CDROM
2013: * drives support it but ATAPI and ATAPI-derivative
2014: * drives don't seem to support it. So we keep a
2015: * cache of the table of contents and translate
2016: * track numbers to MSF format.
2017: */
2018: if (softc->flags & CD_FLAG_VALID_TOC) {
2019: union msf_lba *sentry, *eentry;
2020: int st, et;
2021:
2022: if (args->end_track <
2023: softc->toc.header.ending_track + 1)
2024: args->end_track++;
2025: if (args->end_track >
2026: softc->toc.header.ending_track + 1)
2027: args->end_track =
2028: softc->toc.header.ending_track + 1;
2029: st = args->start_track -
2030: softc->toc.header.starting_track;
2031: et = args->end_track -
2032: softc->toc.header.starting_track;
2033: if ((st < 0)
2034: || (et < 0)
2035: || (st > (softc->toc.header.ending_track -
2036: softc->toc.header.starting_track))) {
2037: error = EINVAL;
2038: break;
2039: }
2040: sentry = &softc->toc.entries[st].addr;
2041: eentry = &softc->toc.entries[et].addr;
2042: error = cdplaymsf(periph,
2043: sentry->msf.minute,
2044: sentry->msf.second,
2045: sentry->msf.frame,
2046: eentry->msf.minute,
2047: eentry->msf.second,
2048: eentry->msf.frame);
2049: } else {
2050: /*
2051: * If we don't have a valid TOC, try the
2052: * play track index command. It is part of
2053: * the SCSI-2 spec, but was removed in the
2054: * MMC specs. ATAPI and ATAPI-derived
2055: * drives don't support it.
2056: */
2057: if (softc->quirks & CD_Q_BCD_TRACKS) {
2058: args->start_track =
2059: bin2bcd(args->start_track);
2060: args->end_track =
2061: bin2bcd(args->end_track);
2062: }
2063: error = cdplaytracks(periph,
2064: args->start_track,
2065: args->start_index,
2066: args->end_track,
2067: args->end_index);
2068: }
2069: }
2070: break;
2071: case CDIOCPLAYMSF:
2072: {
2073: struct ioc_play_msf *args
2074: = (struct ioc_play_msf *) addr;
2075: struct cd_mode_params params;
2076: union cd_pages *page;
2077:
2078: params.alloc_len = sizeof(union cd_mode_data_6_10);
2079: params.mode_buf = malloc(params.alloc_len, M_TEMP,
2080: M_INTWAIT | M_ZERO);
2081:
2082: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2083: ("trying to do CDIOCPLAYMSF\n"));
2084:
2085: error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2086: if (error) {
2087: free(params.mode_buf, M_TEMP);
2088: break;
2089: }
2090: page = cdgetpage(¶ms);
2091:
2092: page->audio.flags &= ~CD_PA_SOTC;
2093: page->audio.flags |= CD_PA_IMMED;
2094: error = cdsetmode(periph, ¶ms);
2095: free(params.mode_buf, M_TEMP);
2096: if (error)
2097: break;
2098: error = cdplaymsf(periph,
2099: args->start_m,
2100: args->start_s,
2101: args->start_f,
2102: args->end_m,
2103: args->end_s,
2104: args->end_f);
2105: }
2106: break;
2107: case CDIOCPLAYBLOCKS:
2108: {
2109: struct ioc_play_blocks *args
2110: = (struct ioc_play_blocks *) addr;
2111: struct cd_mode_params params;
2112: union cd_pages *page;
2113:
2114: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2115: ("trying to do CDIOCPLAYBLOCKS\n"));
2116:
2117: params.alloc_len = sizeof(union cd_mode_data_6_10);
2118: params.mode_buf = malloc(params.alloc_len, M_TEMP,
2119: M_INTWAIT | M_ZERO);
2120:
2121: error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2122: if (error) {
2123: free(params.mode_buf, M_TEMP);
2124: break;
2125: }
2126: page = cdgetpage(¶ms);
2127:
2128: page->audio.flags &= ~CD_PA_SOTC;
2129: page->audio.flags |= CD_PA_IMMED;
2130: error = cdsetmode(periph, ¶ms);
2131: free(params.mode_buf, M_TEMP);
2132: if (error)
2133: break;
2134: error = cdplay(periph, args->blk, args->len);
2135: }
2136: break;
2137: case CDIOCREADSUBCHANNEL:
2138: {
2139: struct ioc_read_subchannel *args
2140: = (struct ioc_read_subchannel *) addr;
2141: struct cd_sub_channel_info *data;
2142: u_int32_t len = args->data_len;
2143:
2144: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2145: ("trying to do CDIOCREADSUBCHANNEL\n"));
2146:
2147: data = malloc(sizeof(struct cd_sub_channel_info),
2148: M_TEMP, M_INTWAIT);
2149:
2150: if ((len > sizeof(struct cd_sub_channel_info)) ||
2151: (len < sizeof(struct cd_sub_channel_header))) {
2152: printf(
2153: "scsi_cd: cdioctl: "
2154: "cdioreadsubchannel: error, len=%d\n",
2155: len);
2156: error = EINVAL;
2157: free(data, M_TEMP);
2158: break;
2159: }
2160:
2161: if (softc->quirks & CD_Q_BCD_TRACKS)
2162: args->track = bin2bcd(args->track);
2163:
2164: error = cdreadsubchannel(periph, args->address_format,
2165: args->data_format, args->track, data, len);
2166:
2167: if (error) {
2168: free(data, M_TEMP);
2169: break;
2170: }
2171: if (softc->quirks & CD_Q_BCD_TRACKS)
2172: data->what.track_info.track_number =
2173: bcd2bin(data->what.track_info.track_number);
2174: len = min(len, ((data->header.data_len[0] << 8) +
2175: data->header.data_len[1] +
2176: sizeof(struct cd_sub_channel_header)));
2177: if (copyout(data, args->data, len) != 0) {
2178: error = EFAULT;
2179: }
2180: free(data, M_TEMP);
2181: }
2182: break;
2183:
2184: case CDIOREADTOCHEADER:
2185: {
2186: struct ioc_toc_header *th;
2187:
2188: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2189: ("trying to do CDIOREADTOCHEADER\n"));
2190:
2191: th = malloc(sizeof(struct ioc_toc_header), M_TEMP,
2192: M_INTWAIT);
2193: error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2194: sizeof (*th), /*sense_flags*/0);
2195: if (error) {
2196: free(th, M_TEMP);
2197: break;
2198: }
2199: if (softc->quirks & CD_Q_BCD_TRACKS) {
2200: /* we are going to have to convert the BCD
2201: * encoding on the cd to what is expected
2202: */
2203: th->starting_track =
2204: bcd2bin(th->starting_track);
2205: th->ending_track = bcd2bin(th->ending_track);
2206: }
2207: NTOHS(th->len);
2208: bcopy(th, addr, sizeof(*th));
2209: free(th, M_TEMP);
2210: }
2211: break;
2212: case CDIOREADTOCENTRYS:
2213: {
2214: struct cd_tocdata *data;
2215: struct cd_toc_single *lead;
2216: struct ioc_read_toc_entry *te =
2217: (struct ioc_read_toc_entry *) addr;
2218: struct ioc_toc_header *th;
2219: u_int32_t len, readlen, idx, num;
2220: u_int32_t starting_track = te->starting_track;
2221:
2222: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2223: ("trying to do CDIOREADTOCENTRYS\n"));
2224:
2225: data = malloc(sizeof(*data), M_TEMP, M_INTWAIT);
2226: lead = malloc(sizeof(*lead), M_TEMP, M_INTWAIT);
2227:
2228: if (te->data_len < sizeof(struct cd_toc_entry)
2229: || (te->data_len % sizeof(struct cd_toc_entry)) != 0
2230: || (te->address_format != CD_MSF_FORMAT
2231: && te->address_format != CD_LBA_FORMAT)) {
2232: error = EINVAL;
2233: printf("scsi_cd: error in readtocentries, "
2234: "returning EINVAL\n");
2235: free(data, M_TEMP);
2236: free(lead, M_TEMP);
2237: break;
2238: }
2239:
2240: th = &data->header;
2241: error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2242: sizeof (*th), /*sense_flags*/0);
2243: if (error) {
2244: free(data, M_TEMP);
2245: free(lead, M_TEMP);
2246: break;
2247: }
2248:
2249: if (softc->quirks & CD_Q_BCD_TRACKS) {
2250: /* we are going to have to convert the BCD
2251: * encoding on the cd to what is expected
2252: */
2253: th->starting_track =
2254: bcd2bin(th->starting_track);
2255: th->ending_track = bcd2bin(th->ending_track);
2256: }
2257:
2258: if (starting_track == 0)
2259: starting_track = th->starting_track;
2260: else if (starting_track == LEADOUT)
2261: starting_track = th->ending_track + 1;
2262: else if (starting_track < th->starting_track ||
2263: starting_track > th->ending_track + 1) {
2264: printf("scsi_cd: error in readtocentries, "
2265: "returning EINVAL\n");
2266: free(data, M_TEMP);
2267: free(lead, M_TEMP);
2268: error = EINVAL;
2269: break;
2270: }
2271:
2272: /* calculate reading length without leadout entry */
2273: readlen = (th->ending_track - starting_track + 1) *
2274: sizeof(struct cd_toc_entry);
2275:
2276: /* and with leadout entry */
2277: len = readlen + sizeof(struct cd_toc_entry);
2278: if (te->data_len < len) {
2279: len = te->data_len;
2280: if (readlen > len)
2281: readlen = len;
2282: }
2283: if (len > sizeof(data->entries)) {
2284: printf("scsi_cd: error in readtocentries, "
2285: "returning EINVAL\n");
2286: error = EINVAL;
2287: free(data, M_TEMP);
2288: free(lead, M_TEMP);
2289: break;
2290: }
2291: num = len / sizeof(struct cd_toc_entry);
2292:
2293: if (readlen > 0) {
2294: error = cdreadtoc(periph, te->address_format,
2295: starting_track,
2296: (u_int8_t *)data,
2297: readlen + sizeof (*th),
2298: /*sense_flags*/0);
2299: if (error) {
2300: free(data, M_TEMP);
2301: free(lead, M_TEMP);
2302: break;
2303: }
2304: }
2305:
2306: /* make leadout entry if needed */
2307: idx = starting_track + num - 1;
2308: if (softc->quirks & CD_Q_BCD_TRACKS)
2309: th->ending_track = bcd2bin(th->ending_track);
2310: if (idx == th->ending_track + 1) {
2311: error = cdreadtoc(periph, te->address_format,
2312: LEADOUT, (u_int8_t *)lead,
2313: sizeof(*lead),
2314: /*sense_flags*/0);
2315: if (error) {
2316: free(data, M_TEMP);
2317: free(lead, M_TEMP);
2318: break;
2319: }
2320: data->entries[idx - starting_track] =
2321: lead->entry;
2322: }
2323: if (softc->quirks & CD_Q_BCD_TRACKS) {
2324: for (idx = 0; idx < num - 1; idx++) {
2325: data->entries[idx].track =
2326: bcd2bin(data->entries[idx].track);
2327: }
2328: }
2329:
2330: error = copyout(data->entries, te->data, len);
2331: free(data, M_TEMP);
2332: free(lead, M_TEMP);
2333: }
2334: break;
2335: case CDIOREADTOCENTRY:
2336: {
2337: struct cd_toc_single *data;
2338: struct ioc_read_toc_single_entry *te =
2339: (struct ioc_read_toc_single_entry *) addr;
2340: struct ioc_toc_header *th;
2341: u_int32_t track;
2342:
2343: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2344: ("trying to do CDIOREADTOCENTRY\n"));
2345:
2346: data = malloc(sizeof(*data), M_TEMP, M_INTWAIT);
2347:
2348: if (te->address_format != CD_MSF_FORMAT
2349: && te->address_format != CD_LBA_FORMAT) {
2350: printf("error in readtocentry, "
2351: " returning EINVAL\n");
2352: free(data, M_TEMP);
2353: error = EINVAL;
2354: break;
2355: }
2356:
2357: th = &data->header;
2358: error = cdreadtoc(periph, 0, 0, (u_int8_t *)th,
2359: sizeof (*th), /*sense_flags*/0);
2360: if (error) {
2361: free(data, M_TEMP);
2362: break;
2363: }
2364:
2365: if (softc->quirks & CD_Q_BCD_TRACKS) {
2366: /* we are going to have to convert the BCD
2367: * encoding on the cd to what is expected
2368: */
2369: th->starting_track =
2370: bcd2bin(th->starting_track);
2371: th->ending_track = bcd2bin(th->ending_track);
2372: }
2373: track = te->track;
2374: if (track == 0)
2375: track = th->starting_track;
2376: else if (track == LEADOUT)
2377: /* OK */;
2378: else if (track < th->starting_track ||
2379: track > th->ending_track + 1) {
2380: printf("error in readtocentry, "
2381: " returning EINVAL\n");
2382: free(data, M_TEMP);
2383: error = EINVAL;
2384: break;
2385: }
2386:
2387: error = cdreadtoc(periph, te->address_format, track,
2388: (u_int8_t *)data, sizeof(*data),
2389: /*sense_flags*/0);
2390: if (error) {
2391: free(data, M_TEMP);
2392: break;
2393: }
2394:
2395: if (softc->quirks & CD_Q_BCD_TRACKS)
2396: data->entry.track = bcd2bin(data->entry.track);
2397: bcopy(&data->entry, &te->entry,
2398: sizeof(struct cd_toc_entry));
2399: free(data, M_TEMP);
2400: }
2401: break;
2402: case CDIOCSETPATCH:
2403: {
2404: struct ioc_patch *arg = (struct ioc_patch *)addr;
2405: struct cd_mode_params params;
2406: union cd_pages *page;
2407:
2408: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2409: ("trying to do CDIOCSETPATCH\n"));
2410:
2411: params.alloc_len = sizeof(union cd_mode_data_6_10);
2412: params.mode_buf = malloc(params.alloc_len, M_TEMP,
2413: M_INTWAIT | M_ZERO);
2414: error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2415: if (error) {
2416: free(params.mode_buf, M_TEMP);
2417: break;
2418: }
2419: page = cdgetpage(¶ms);
2420:
2421: page->audio.port[LEFT_PORT].channels =
2422: arg->patch[0];
2423: page->audio.port[RIGHT_PORT].channels =
2424: arg->patch[1];
2425: page->audio.port[2].channels = arg->patch[2];
2426: page->audio.port[3].channels = arg->patch[3];
2427: error = cdsetmode(periph, ¶ms);
2428: free(params.mode_buf, M_TEMP);
2429: }
2430: break;
2431: case CDIOCGETVOL:
2432: {
2433: struct ioc_vol *arg = (struct ioc_vol *) addr;
2434: struct cd_mode_params params;
2435: union cd_pages *page;
2436:
2437: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2438: ("trying to do CDIOCGETVOL\n"));
2439:
2440: params.alloc_len = sizeof(union cd_mode_data_6_10);
2441: params.mode_buf = malloc(params.alloc_len, M_TEMP,
2442: M_INTWAIT | M_ZERO);
2443: error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2444: if (error) {
2445: free(params.mode_buf, M_TEMP);
2446: break;
2447: }
2448: page = cdgetpage(¶ms);
2449:
2450: arg->vol[LEFT_PORT] =
2451: page->audio.port[LEFT_PORT].volume;
2452: arg->vol[RIGHT_PORT] =
2453: page->audio.port[RIGHT_PORT].volume;
2454: arg->vol[2] = page->audio.port[2].volume;
2455: arg->vol[3] = page->audio.port[3].volume;
2456: free(params.mode_buf, M_TEMP);
2457: }
2458: break;
2459: case CDIOCSETVOL:
2460: {
2461: struct ioc_vol *arg = (struct ioc_vol *) addr;
2462: struct cd_mode_params params;
2463: union cd_pages *page;
2464:
2465: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2466: ("trying to do CDIOCSETVOL\n"));
2467:
2468: params.alloc_len = sizeof(union cd_mode_data_6_10);
2469: params.mode_buf = malloc(params.alloc_len, M_TEMP,
2470: M_INTWAIT | M_ZERO);
2471: error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2472: if (error) {
2473: free(params.mode_buf, M_TEMP);
2474: break;
2475: }
2476: page = cdgetpage(¶ms);
2477:
2478: page->audio.port[LEFT_PORT].channels = CHANNEL_0;
2479: page->audio.port[LEFT_PORT].volume =
2480: arg->vol[LEFT_PORT];
2481: page->audio.port[RIGHT_PORT].channels = CHANNEL_1;
2482: page->audio.port[RIGHT_PORT].volume =
2483: arg->vol[RIGHT_PORT];
2484: page->audio.port[2].volume = arg->vol[2];
2485: page->audio.port[3].volume = arg->vol[3];
2486: error = cdsetmode(periph, ¶ms);
2487: free(params.mode_buf, M_TEMP);
2488: }
2489: break;
2490: case CDIOCSETMONO:
2491: {
2492: struct cd_mode_params params;
2493: union cd_pages *page;
2494:
2495: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2496: ("trying to do CDIOCSETMONO\n"));
2497:
2498: params.alloc_len = sizeof(union cd_mode_data_6_10);
2499: params.mode_buf = malloc(params.alloc_len, M_TEMP,
2500: M_INTWAIT | M_ZERO);
2501: error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2502: if (error) {
2503: free(params.mode_buf, M_TEMP);
2504: break;
2505: }
2506: page = cdgetpage(¶ms);
2507:
2508: page->audio.port[LEFT_PORT].channels =
2509: LEFT_CHANNEL | RIGHT_CHANNEL;
2510: page->audio.port[RIGHT_PORT].channels =
2511: LEFT_CHANNEL | RIGHT_CHANNEL;
2512: page->audio.port[2].channels = 0;
2513: page->audio.port[3].channels = 0;
2514: error = cdsetmode(periph, ¶ms);
2515: free(params.mode_buf, M_TEMP);
2516: }
2517: break;
2518: case CDIOCSETSTEREO:
2519: {
2520: struct cd_mode_params params;
2521: union cd_pages *page;
2522:
2523: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2524: ("trying to do CDIOCSETSTEREO\n"));
2525:
2526: params.alloc_len = sizeof(union cd_mode_data_6_10);
2527: params.mode_buf = malloc(params.alloc_len, M_TEMP,
2528: M_INTWAIT | M_ZERO);
2529: error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2530: if (error) {
2531: free(params.mode_buf, M_TEMP);
2532: break;
2533: }
2534: page = cdgetpage(¶ms);
2535:
2536: page->audio.port[LEFT_PORT].channels =
2537: LEFT_CHANNEL;
2538: page->audio.port[RIGHT_PORT].channels =
2539: RIGHT_CHANNEL;
2540: page->audio.port[2].channels = 0;
2541: page->audio.port[3].channels = 0;
2542: error = cdsetmode(periph, ¶ms);
2543: free(params.mode_buf, M_TEMP);
2544: }
2545: break;
2546: case CDIOCSETMUTE:
2547: {
2548: struct cd_mode_params params;
2549: union cd_pages *page;
2550:
2551: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2552: ("trying to do CDIOCSETMUTE\n"));
2553:
2554: params.alloc_len = sizeof(union cd_mode_data_6_10);
2555: params.mode_buf = malloc(params.alloc_len, M_TEMP,
2556: M_INTWAIT | M_ZERO);
2557: error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2558: if (error) {
2559: free(¶ms, M_TEMP);
2560: break;
2561: }
2562: page = cdgetpage(¶ms);
2563:
2564: page->audio.port[LEFT_PORT].channels = 0;
2565: page->audio.port[RIGHT_PORT].channels = 0;
2566: page->audio.port[2].channels = 0;
2567: page->audio.port[3].channels = 0;
2568: error = cdsetmode(periph, ¶ms);
2569: free(params.mode_buf, M_TEMP);
2570: }
2571: break;
2572: case CDIOCSETLEFT:
2573: {
2574: struct cd_mode_params params;
2575: union cd_pages *page;
2576:
2577: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2578: ("trying to do CDIOCSETLEFT\n"));
2579:
2580: params.alloc_len = sizeof(union cd_mode_data_6_10);
2581: params.mode_buf = malloc(params.alloc_len, M_TEMP,
2582: M_INTWAIT | M_ZERO);
2583:
2584: error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2585: if (error) {
2586: free(params.mode_buf, M_TEMP);
2587: break;
2588: }
2589: page = cdgetpage(¶ms);
2590:
2591: page->audio.port[LEFT_PORT].channels = LEFT_CHANNEL;
2592: page->audio.port[RIGHT_PORT].channels = LEFT_CHANNEL;
2593: page->audio.port[2].channels = 0;
2594: page->audio.port[3].channels = 0;
2595: error = cdsetmode(periph, ¶ms);
2596: free(params.mode_buf, M_TEMP);
2597: }
2598: break;
2599: case CDIOCSETRIGHT:
2600: {
2601: struct cd_mode_params params;
2602: union cd_pages *page;
2603:
2604: CAM_DEBUG(periph->path, CAM_DEBUG_SUBTRACE,
2605: ("trying to do CDIOCSETRIGHT\n"));
2606:
2607: params.alloc_len = sizeof(union cd_mode_data_6_10);
2608: params.mode_buf = malloc(params.alloc_len, M_TEMP,
2609: M_INTWAIT | M_ZERO);
2610:
2611: error = cdgetmode(periph, ¶ms, AUDIO_PAGE);
2612: if (error) {
2613: free(params.mode_buf, M_TEMP);
2614: break;
2615: }
2616: page = cdgetpage(¶ms);
2617:
2618: page->audio.port[LEFT_PORT].channels = RIGHT_CHANNEL;
2619: page->audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL;
2620: page->audio.port[2].channels = 0;
2621: page->audio.port[3].channels = 0;
2622: error = cdsetmode(periph, ¶ms);
2623: free(params.mode_buf, M_TEMP);
2624: }
2625: break;
2626: case CDIOCRESUME:
2627: error = cdpause(periph, 1);
2628: break;
2629: case CDIOCPAUSE:
2630: error = cdpause(periph, 0);
2631: break;
2632: case CDIOCSTART:
2633: error = cdstartunit(periph, 0);
2634: break;
2635: case CDIOCCLOSE:
2636: error = cdstartunit(periph, 1);
2637:
2638: #ifdef notyet
2639: if (error != 0)
2640: break;
2641:
2642: /*
2643: * The user successfully closed the tray, run
2644: * cdcheckmedia() again so we can re-sync the disklabel
2645: * information.
2646: */
2647: cdcheckmedia(periph);
2648: #endif /* notyet */
2649: break;
2650: case CDIOCSTOP:
2651: error = cdstopunit(periph, 0);
2652: break;
2653: case CDIOCEJECT:
2654: error = cdstopunit(periph, 1);
2655:
2656: #ifdef notyet
2657: if (error != 0)
2658: break;
2659:
2660: /*
2661: * Since we've successfully ejected the media, run
2662: * cdcheckmedia() again so we re-sync the disklabel
2663: * information.
2664: */
2665: cdcheckmedia(periph);
2666: #endif /* notyet */
2667: break;
2668: case CDIOCALLOW:
2669: cdprevent(periph, PR_ALLOW);
2670: break;
2671: case CDIOCPREVENT:
2672: cdprevent(periph, PR_PREVENT);
2673: break;
2674: case CDIOCSETDEBUG:
2675: /* sc_link->flags |= (SDEV_DB1 | SDEV_DB2); */
2676: error = ENOTTY;
2677: break;
2678: case CDIOCCLRDEBUG:
2679: /* sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2); */
2680: error = ENOTTY;
2681: break;
2682: case CDIOCRESET:
2683: /* return (cd_reset(periph)); */
2684: error = ENOTTY;
2685: break;
2686: case CDRIOCREADSPEED:
2687: error = cdsetspeed(periph, *(u_int32_t *)addr, CDR_MAX_SPEED);
2688: break;
2689: case CDRIOCWRITESPEED:
2690: error = cdsetspeed(periph, CDR_MAX_SPEED, *(u_int32_t *)addr);
2691: break;
2692: case DVDIOCSENDKEY:
2693: case DVDIOCREPORTKEY: {
2694: struct dvd_authinfo *authinfo;
2695:
2696: authinfo = (struct dvd_authinfo *)addr;
2697:
2698: if (cmd == DVDIOCREPORTKEY)
2699: error = cdreportkey(periph, authinfo);
2700: else
2701: error = cdsendkey(periph, authinfo);
2702: break;
2703: }
2704: case DVDIOCREADSTRUCTURE: {
2705: struct dvd_struct *dvdstruct;
2706:
2707: dvdstruct = (struct dvd_struct *)addr;
2708:
2709: error = cdreaddvdstructure(periph, dvdstruct);
2710:
2711: break;
2712: }
2713: default:
2714: error = cam_periph_ioctl(periph, cmd, addr, cderror);
2715: break;
2716: }
2717:
2718: cam_periph_unlock(periph);
2719:
2720: CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n"));
2721:
2722: return (error);
2723: }
2724:
2725: static void
2726: cdprevent(struct cam_periph *periph, int action)
2727: {
2728: union ccb *ccb;
2729: struct cd_softc *softc;
2730: int error;
2731:
2732: CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdprevent\n"));
2733:
2734: softc = (struct cd_softc *)periph->softc;
2735:
2736: if (((action == PR_ALLOW)
2737: && (softc->flags & CD_FLAG_DISC_LOCKED) == 0)
2738: || ((action == PR_PREVENT)
2739: && (softc->flags & CD_FLAG_DISC_LOCKED) != 0)) {
2740: return;
2741: }
2742:
2743: ccb = cdgetccb(periph, /* priority */ 1);
2744:
2745: scsi_prevent(&ccb->csio,
2746: /*retries*/ 1,
2747: cddone,
2748: MSG_SIMPLE_Q_TAG,
2749: action,
2750: SSD_FULL_SIZE,
2751: /* timeout */60000);
2752:
2753: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
2754: /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT|SF_RETRY_SELTO);
2755:
2756: xpt_release_ccb(ccb);
2757:
2758: if (error == 0) {
2759: if (action == PR_ALLOW)
2760: softc->flags &= ~CD_FLAG_DISC_LOCKED;
2761: else
2762: softc->flags |= CD_FLAG_DISC_LOCKED;
2763: }
2764: }
2765:
2766: int
2767: cdcheckmedia(struct cam_periph *periph)
2768: {
2769: struct cd_softc *softc;
2770: struct ioc_toc_header *toch;
2771: struct cd_toc_single leadout;
2772: struct ccb_getdev cgd;
2773: u_int32_t size, toclen;
2774: int error, num_entries, cdindex;
2775: int first_track_audio;
2776: struct disklabel *label;
2777:
2778: softc = (struct cd_softc *)periph->softc;
2779:
2780: first_track_audio = -1;
2781: error = 0;
2782:
2783: cdprevent(periph, PR_PREVENT);
2784:
2785: /*
2786: * Build prototype label for whole disk.
2787: * Should take information about different data tracks from the
2788: * TOC and put it in the partition table.
2789: */
2790: label = &softc->disk.d_label;
2791: bzero(label, sizeof(*label));
2792: label->d_type = DTYPE_SCSI;
2793:
2794: /*
2795: * Grab the inquiry data to get the vendor and product names.
2796: * Put them in the typename and packname for the label.
2797: */
2798: xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1);
2799: cgd.ccb_h.func_code = XPT_GDEV_TYPE;
2800: xpt_action((union ccb *)&cgd);
2801:
2802: strncpy(label->d_typename, cgd.inq_data.vendor,
2803: min(SID_VENDOR_SIZE, sizeof(label->d_typename)));
2804: strncpy(label->d_packname, cgd.inq_data.product,
2805: min(SID_PRODUCT_SIZE, sizeof(label->d_packname)));
2806:
2807: label->d_flags = D_REMOVABLE;
2808: /*
2809: * Make partition 'a' cover the whole disk. This is a temporary
2810: * compatibility hack. The 'a' partition should not exist, so
2811: * the slice code won't create it. The slice code will make
2812: * partition (RAW_PART + 'a') cover the whole disk and fill in
2813: * some more defaults.
2814: */
2815: label->d_partitions[0].p_size = label->d_secperunit;
2816: label->d_partitions[0].p_fstype = FS_OTHER;
2817:
2818: /*
2819: * Default to not reading the disklabel off the disk, until we can
2820: * verify that we have media, that we have a table of contents, and
2821: * that the first track is a data track (which could theoretically
2822: * contain a disklabel).
2823: */
2824: softc->disk.d_dsflags &= ~DSO_COMPATLABEL;
2825: softc->disk.d_dsflags |= DSO_NOLABELS;
2826:
2827: /*
2828: * Clear the valid media and TOC flags until we've verified that we
2829: * have both.
2830: */
2831: softc->flags &= ~(CD_FLAG_VALID_MEDIA|CD_FLAG_VALID_TOC);
2832:
2833: /*
2834: * Get the disc size and block size. If we can't get it, we don't
2835: * have media, most likely.
2836: */
2837: if ((error = cdsize(periph, &size)) != 0) {
2838: /*
2839: * Set a bogus sector size, so the slice code won't try to
2840: * divide by 0 and panic the kernel.
2841: */
2842: label->d_secsize = 2048;
2843:
2844: label->d_secperunit = 0;
2845:
2846: /*
2847: * XXX KDM is this a good idea? Seems to cause more
2848: * problems.
2849: */
2850: if (softc->flags & CD_FLAG_OPEN) {
2851: int force;
2852:
2853: force = 1;
2854:
2855: /*
2856: * We don't bother checking the return value here,
2857: * since we already have an error...
2858: */
2859: dsioctl(softc->disk.d_dev, DIOCSYNCSLICEINFO,
2860: /*data*/(caddr_t)&force, /*flags*/ 0,
2861: &softc->disk.d_slice);
2862: }
2863:
2864: /*
2865: * Tell devstat(9) we don't have a blocksize.
2866: */
2867: softc->device_stats.flags |= DEVSTAT_BS_UNAVAILABLE;
2868:
2869: cdprevent(periph, PR_ALLOW);
2870:
2871: return (error);
2872: } else {
2873:
2874: label->d_secsize = softc->params.blksize;
2875: label->d_secperunit = softc->params.disksize;
2876:
2877: /*
2878: * Force a re-sync of slice information, like the blocksize,
2879: * now that we know it. It isn't pretty...but according to
2880: * Bruce Evans, this is probably the best way to do it in
2881: * -stable. We only do this if we're already open, and
2882: * therefore dsopen() has already run. If CD_FLAG_OPEN
2883: * isn't set, this isn't necessary.
2884: */
2885: if (softc->flags & CD_FLAG_OPEN) {
2886: int force;
2887:
2888: force = 1;
2889:
2890: error = dsioctl(softc->disk.d_dev, DIOCSYNCSLICEINFO,
2891: /*data*/(caddr_t)&force, /*flags*/ 0,
2892: &softc->disk.d_slice);
2893: if (error != 0) {
2894: /*
2895: * Set a bogus sector size, so the slice code
2896: * won't try to divide by 0 and panic the
2897: * kernel.
2898: */
2899: label->d_secsize = 2048;
2900:
2901: label->d_secperunit = 0;
2902:
2903: /*
2904: * Tell devstat(9) we don't have a blocksize.
2905: */
2906: softc->device_stats.flags |=
2907: DEVSTAT_BS_UNAVAILABLE;
2908:
2909: cdprevent(periph, PR_ALLOW);
2910: }
2911: }
2912:
2913: /*
2914: * We unconditionally (re)set the blocksize each time the
2915: * CD device is opened. This is because the CD can change,
2916: * and therefore the blocksize might change.
2917: * XXX problems here if some slice or partition is still
2918: * open with the old size?
2919: */
2920: if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0)
2921: softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE;
2922: softc->device_stats.block_size = softc->params.blksize;
2923:
2924: softc->flags |= CD_FLAG_VALID_MEDIA;
2925: }
2926:
2927: /*
2928: * Now we check the table of contents. This (currently) is only
2929: * used for the CDIOCPLAYTRACKS ioctl. It may be used later to do
2930: * things like present a separate entry in /dev for each track,
2931: * like that acd(4) driver does.
2932: */
2933: bzero(&softc->toc, sizeof(softc->toc));
2934: toch = &softc->toc.header;
2935:
2936: /*
2937: * We will get errors here for media that doesn't have a table of
2938: * contents. According to the MMC-3 spec: "When a Read TOC/PMA/ATIP
2939: * command is presented for a DDCD/CD-R/RW media, where the first TOC
2940: * has not been recorded (no complete session) and the Format codes
2941: * 0000b, 0001b, or 0010b are specified, this command shall be rejected
2942: * with an INVALID FIELD IN CDB. Devices that are not capable of
2943: * reading an incomplete session on DDC/CD-R/RW media shall report
2944: * CANNOT READ MEDIUM - INCOMPATIBLE FORMAT."
2945: *
2946: * So this isn't fatal if we can't read the table of contents, it
2947: * just means that the user won't be able to issue the play tracks
2948: * ioctl, and likely lots of other stuff won't work either. They
2949: * need to burn the CD before we can do a whole lot with it. So
2950: * we don't print anything here if we get an error back.
2951: */
2952: error = cdreadtoc(periph, 0, 0, (u_int8_t *)toch, sizeof(*toch),
2953: SF_NO_PRINT);
2954: /*
2955: * Errors in reading the table of contents aren't fatal, we just
2956: * won't have a valid table of contents cached.
2957: */
2958: if (error != 0) {
2959: error = 0;
2960: bzero(&softc->toc, sizeof(softc->toc));
2961: goto bailout;
2962: }
2963:
2964: if (softc->quirks & CD_Q_BCD_TRACKS) {
2965: toch->starting_track = bcd2bin(toch->starting_track);
2966: toch->ending_track = bcd2bin(toch->ending_track);
2967: }
2968:
2969: /* Number of TOC entries, plus leadout */
2970: num_entries = (toch->ending_track - toch->starting_track) + 2;
2971:
2972: if (num_entries <= 0)
2973: goto bailout;
2974:
2975: toclen = num_entries * sizeof(struct cd_toc_entry);
2976:
2977: error = cdreadtoc(periph, CD_MSF_FORMAT, toch->starting_track,
2978: (u_int8_t *)&softc->toc, toclen + sizeof(*toch),
2979: SF_NO_PRINT);
2980: if (error != 0) {
2981: error = 0;
2982: bzero(&softc->toc, sizeof(softc->toc));
2983: goto bailout;
2984: }
2985:
2986: if (softc->quirks & CD_Q_BCD_TRACKS) {
2987: toch->starting_track = bcd2bin(toch->starting_track);
2988: toch->ending_track = bcd2bin(toch->ending_track);
2989: }
2990: toch->len = scsi_2btoul((uint8_t *)&toch->len);
2991:
2992: /*
2993: * XXX KDM is this necessary? Probably only if the drive doesn't
2994: * return leadout information with the table of contents.
2995: */
2996: cdindex = toch->starting_track + num_entries -1;
2997: if (cdindex == toch->ending_track + 1) {
2998:
2999: error = cdreadtoc(periph, CD_MSF_FORMAT, LEADOUT,
3000: (u_int8_t *)&leadout, sizeof(leadout),
3001: SF_NO_PRINT);
3002: if (error != 0) {
3003: error = 0;
3004: goto bailout;
3005: }
3006: softc->toc.entries[cdindex - toch->starting_track] =
3007: leadout.entry;
3008: }
3009: if (softc->quirks & CD_Q_BCD_TRACKS) {
3010: for (cdindex = 0; cdindex < (num_entries - 1); cdindex++) {
3011: softc->toc.entries[cdindex].track =
3012: bcd2bin(softc->toc.entries[cdindex].track);
3013: }
3014: }
3015:
3016: /*
3017: * Run through the TOC entries, find the first entry and determine
3018: * whether it is an audio or data track.
3019: */
3020: for (cdindex = 0; cdindex < (num_entries - 1); cdindex++) {
3021: if (softc->toc.entries[cdindex].track == toch->starting_track) {
3022: if (softc->toc.entries[cdindex].control & 0x04)
3023: first_track_audio = 0;
3024: else
3025: first_track_audio = 1;
3026: break;
3027: }
3028: }
3029:
3030: /*
3031: * If first_track_audio is non-zero, we either have an error (e.g.
3032: * couldn't find the starting track) or the first track is an audio
3033: * track. If first_track_audio is 0, the first track is a data
3034: * track that could have a disklabel. Attempt to read the
3035: * disklabel off the media, just in case the user put one there.
3036: */
3037: if (first_track_audio == 0) {
3038: softc->disk.d_dsflags |= DSO_COMPATLABEL;
3039: softc->disk.d_dsflags &= ~DSO_NOLABELS;
3040: }
3041: softc->flags |= CD_FLAG_VALID_TOC;
3042:
3043: bailout:
3044: return (error);
3045: }
3046:
3047: static int
3048: cdsize(struct cam_periph *periph, u_int32_t *size)
3049: {
3050: struct cd_softc *softc;
3051: union ccb *ccb;
3052: struct scsi_read_capacity_data *rcap_buf;
3053: int error;
3054:
3055: CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdsize\n"));
3056:
3057: softc = (struct cd_softc *)periph->softc;
3058:
3059: ccb = cdgetccb(periph, /* priority */ 1);
3060:
3061: rcap_buf = malloc(sizeof(struct scsi_read_capacity_data),
3062: M_TEMP, M_INTWAIT | M_ZERO);
3063:
3064: scsi_read_capacity(&ccb->csio,
3065: /*retries*/ 1,
3066: cddone,
3067: MSG_SIMPLE_Q_TAG,
3068: rcap_buf,
3069: SSD_FULL_SIZE,
3070: /* timeout */20000);
3071:
3072: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3073: /*sense_flags*/SF_RETRY_UA|SF_NO_PRINT|SF_RETRY_SELTO);
3074:
3075: xpt_release_ccb(ccb);
3076:
3077: softc->params.disksize = scsi_4btoul(rcap_buf->addr) + 1;
3078: softc->params.blksize = scsi_4btoul(rcap_buf->length);
3079: /*
3080: * SCSI-3 mandates that the reported blocksize shall be 2048.
3081: * Older drives sometimes report funny values, trim it down to
3082: * 2048, or other parts of the kernel will get confused.
3083: *
3084: * XXX we leave drives alone that might report 512 bytes, as
3085: * well as drives reporting more weird sizes like perhaps 4K.
3086: */
3087: if (softc->params.blksize > 2048 && softc->params.blksize <= 2352)
3088: softc->params.blksize = 2048;
3089:
3090: free(rcap_buf, M_TEMP);
3091: *size = softc->params.disksize;
3092:
3093: return (error);
3094:
3095: }
3096:
3097: static int
3098: cd6byteworkaround(union ccb *ccb)
3099: {
3100: u_int8_t *cdb;
3101: struct cam_periph *periph;
3102: struct cd_softc *softc;
3103: struct cd_mode_params *params;
3104: int frozen, found;
3105:
3106: periph = xpt_path_periph(ccb->ccb_h.path);
3107: softc = (struct cd_softc *)periph->softc;
3108:
3109: cdb = ccb->csio.cdb_io.cdb_bytes;
3110:
3111: if ((ccb->ccb_h.flags & CAM_CDB_POINTER)
3112: || ((cdb[0] != MODE_SENSE_6)
3113: && (cdb[0] != MODE_SELECT_6)))
3114: return (0);
3115:
3116: /*
3117: * Because there is no convenient place to stash the overall
3118: * cd_mode_params structure pointer, we have to grab it like this.
3119: * This means that ALL MODE_SENSE and MODE_SELECT requests in the
3120: * cd(4) driver MUST go through cdgetmode() and cdsetmode()!
3121: *
3122: * XXX It would be nice if, at some point, we could increase the
3123: * number of available peripheral private pointers. Both pointers
3124: * are currently used in most every peripheral driver.
3125: */
3126: found = 0;
3127:
3128: STAILQ_FOREACH(params, &softc->mode_queue, links) {
3129: if (params->mode_buf == ccb->csio.data_ptr) {
3130: found = 1;
3131: break;
3132: }
3133: }
3134:
3135: /*
3136: * This shouldn't happen. All mode sense and mode select
3137: * operations in the cd(4) driver MUST go through cdgetmode() and
3138: * cdsetmode()!
3139: */
3140: if (found == 0) {
3141: xpt_print_path(periph->path);
3142: printf("mode buffer not found in mode queue!\n");
3143: return (0);
3144: }
3145:
3146: params->cdb_size = 10;
3147: softc->minimum_command_size = 10;
3148: xpt_print_path(ccb->ccb_h.path);
3149: printf("%s(6) failed, increasing minimum CDB size to 10 bytes\n",
3150: (cdb[0] == MODE_SENSE_6) ? "MODE_SENSE" : "MODE_SELECT");
3151:
3152: if (cdb[0] == MODE_SENSE_6) {
3153: struct scsi_mode_sense_10 ms10;
3154: struct scsi_mode_sense_6 *ms6;
3155: int len;
3156:
3157: ms6 = (struct scsi_mode_sense_6 *)cdb;
3158:
3159: bzero(&ms10, sizeof(ms10));
3160: ms10.opcode = MODE_SENSE_10;
3161: ms10.byte2 = ms6->byte2;
3162: ms10.page = ms6->page;
3163:
3164: /*
3165: * 10 byte mode header, block descriptor,
3166: * sizeof(union cd_pages)
3167: */
3168: len = sizeof(struct cd_mode_data_10);
3169: ccb->csio.dxfer_len = len;
3170:
3171: scsi_ulto2b(len, ms10.length);
3172: ms10.control = ms6->control;
3173: bcopy(&ms10, cdb, 10);
3174: ccb->csio.cdb_len = 10;
3175: } else {
3176: struct scsi_mode_select_10 ms10;
3177: struct scsi_mode_select_6 *ms6;
3178: struct scsi_mode_header_6 *header6;
3179: struct scsi_mode_header_10 *header10;
3180: struct scsi_mode_page_header *page_header;
3181: int blk_desc_len, page_num, page_size, len;
3182:
3183: ms6 = (struct scsi_mode_select_6 *)cdb;
3184:
3185: bzero(&ms10, sizeof(ms10));
3186: ms10.opcode = MODE_SELECT_10;
3187: ms10.byte2 = ms6->byte2;
3188:
3189: header6 = (struct scsi_mode_header_6 *)params->mode_buf;
3190: header10 = (struct scsi_mode_header_10 *)params->mode_buf;
3191:
3192: page_header = find_mode_page_6(header6);
3193: page_num = page_header->page_code;
3194:
3195: blk_desc_len = header6->blk_desc_len;
3196:
3197: page_size = cdgetpagesize(page_num);
3198:
3199: if (page_size != (page_header->page_length +
3200: sizeof(*page_header)))
3201: page_size = page_header->page_length +
3202: sizeof(*page_header);
3203:
3204: len = sizeof(*header10) + blk_desc_len + page_size;
3205:
3206: len = min(params->alloc_len, len);
3207:
3208: /*
3209: * Since the 6 byte parameter header is shorter than the 10
3210: * byte parameter header, we need to copy the actual mode
3211: * page data, and the block descriptor, if any, so things wind
3212: * up in the right place. The regions will overlap, but
3213: * bcopy() does the right thing.
3214: */
3215: bcopy(params->mode_buf + sizeof(*header6),
3216: params->mode_buf + sizeof(*header10),
3217: len - sizeof(*header10));
3218:
3219: /* Make sure these fields are set correctly. */
3220: scsi_ulto2b(0, header10->data_length);
3221: header10->medium_type = 0;
3222: scsi_ulto2b(blk_desc_len, header10->blk_desc_len);
3223:
3224: ccb->csio.dxfer_len = len;
3225:
3226: scsi_ulto2b(len, ms10.length);
3227: ms10.control = ms6->control;
3228: bcopy(&ms10, cdb, 10);
3229: ccb->csio.cdb_len = 10;
3230: }
3231:
3232: frozen = (ccb->ccb_h.status & CAM_DEV_QFRZN) != 0;
3233: ccb->ccb_h.status = CAM_REQUEUE_REQ;
3234: xpt_action(ccb);
3235: if (frozen) {
3236: cam_release_devq(ccb->ccb_h.path,
3237: /*relsim_flags*/0,
3238: /*openings*/0,
3239: /*timeout*/0,
3240: /*getcount_only*/0);
3241: }
3242:
3243: return (ERESTART);
3244: }
3245:
3246: static int
3247: cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
3248: {
3249: struct cd_softc *softc;
3250: struct cam_periph *periph;
3251: int error;
3252:
3253: periph = xpt_path_periph(ccb->ccb_h.path);
3254: softc = (struct cd_softc *)periph->softc;
3255:
3256: error = 0;
3257:
3258: /*
3259: * We use a status of CAM_REQ_INVALID as shorthand -- if a 6 byte
3260: * CDB comes back with this particular error, try transforming it
3261: * into the 10 byte version.
3262: */
3263: if ((ccb->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_INVALID) {
3264: error = cd6byteworkaround(ccb);
3265: } else if (((ccb->ccb_h.status & CAM_STATUS_MASK) ==
3266: CAM_SCSI_STATUS_ERROR)
3267: && (ccb->ccb_h.status & CAM_AUTOSNS_VALID)
3268: && (ccb->csio.scsi_status == SCSI_STATUS_CHECK_COND)
3269: && ((ccb->ccb_h.flags & CAM_SENSE_PHYS) == 0)
3270: && ((ccb->ccb_h.flags & CAM_SENSE_PTR) == 0)) {
3271: int sense_key, error_code, asc, ascq;
3272:
3273: scsi_extract_sense(&ccb->csio.sense_data,
3274: &error_code, &sense_key, &asc, &ascq);
3275: if (sense_key == SSD_KEY_ILLEGAL_REQUEST)
3276: error = cd6byteworkaround(ccb);
3277: }
3278:
3279: if (error == ERESTART)
3280: return (error);
3281:
3282: /*
3283: * XXX
3284: * Until we have a better way of doing pack validation,
3285: * don't treat UAs as errors.
3286: */
3287: sense_flags |= SF_RETRY_UA;
3288: return (cam_periph_error(ccb, cam_flags, sense_flags,
3289: &softc->saved_ccb));
3290: }
3291:
3292: /*
3293: * Read table of contents
3294: */
3295: static int
3296: cdreadtoc(struct cam_periph *periph, u_int32_t mode, u_int32_t start,
3297: u_int8_t *data, u_int32_t len, u_int32_t sense_flags)
3298: {
3299: struct scsi_read_toc *scsi_cmd;
3300: u_int32_t ntoc;
3301: struct ccb_scsiio *csio;
3302: union ccb *ccb;
3303: int error;
3304:
3305: ntoc = len;
3306: error = 0;
3307:
3308: ccb = cdgetccb(periph, /* priority */ 1);
3309:
3310: csio = &ccb->csio;
3311:
3312: cam_fill_csio(csio,
3313: /* retries */ 1,
3314: /* cbfcnp */ cddone,
3315: /* flags */ CAM_DIR_IN,
3316: /* tag_action */ MSG_SIMPLE_Q_TAG,
3317: /* data_ptr */ data,
3318: /* dxfer_len */ len,
3319: /* sense_len */ SSD_FULL_SIZE,
3320: sizeof(struct scsi_read_toc),
3321: /* timeout */ 50000);
3322:
3323: scsi_cmd = (struct scsi_read_toc *)&csio->cdb_io.cdb_bytes;
3324: bzero (scsi_cmd, sizeof(*scsi_cmd));
3325:
3326: if (mode == CD_MSF_FORMAT)
3327: scsi_cmd->byte2 |= CD_MSF;
3328: scsi_cmd->from_track = start;
3329: /* scsi_ulto2b(ntoc, (u_int8_t *)scsi_cmd->data_len); */
3330: scsi_cmd->data_len[0] = (ntoc) >> 8;
3331: scsi_cmd->data_len[1] = (ntoc) & 0xff;
3332:
3333: scsi_cmd->op_code = READ_TOC;
3334:
3335: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3336: /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO |
3337: sense_flags);
3338:
3339: xpt_release_ccb(ccb);
3340:
3341: return(error);
3342: }
3343:
3344: static int
3345: cdreadsubchannel(struct cam_periph *periph, u_int32_t mode,
3346: u_int32_t format, int track,
3347: struct cd_sub_channel_info *data, u_int32_t len)
3348: {
3349: struct scsi_read_subchannel *scsi_cmd;
3350: struct ccb_scsiio *csio;
3351: union ccb *ccb;
3352: int error;
3353:
3354: error = 0;
3355:
3356: ccb = cdgetccb(periph, /* priority */ 1);
3357:
3358: csio = &ccb->csio;
3359:
3360: cam_fill_csio(csio,
3361: /* retries */ 1,
3362: /* cbfcnp */ cddone,
3363: /* flags */ CAM_DIR_IN,
3364: /* tag_action */ MSG_SIMPLE_Q_TAG,
3365: /* data_ptr */ (u_int8_t *)data,
3366: /* dxfer_len */ len,
3367: /* sense_len */ SSD_FULL_SIZE,
3368: sizeof(struct scsi_read_subchannel),
3369: /* timeout */ 50000);
3370:
3371: scsi_cmd = (struct scsi_read_subchannel *)&csio->cdb_io.cdb_bytes;
3372: bzero (scsi_cmd, sizeof(*scsi_cmd));
3373:
3374: scsi_cmd->op_code = READ_SUBCHANNEL;
3375: if (mode == CD_MSF_FORMAT)
3376: scsi_cmd->byte1 |= CD_MSF;
3377: scsi_cmd->byte2 = SRS_SUBQ;
3378: scsi_cmd->subchan_format = format;
3379: scsi_cmd->track = track;
3380: scsi_ulto2b(len, (u_int8_t *)scsi_cmd->data_len);
3381: scsi_cmd->control = 0;
3382:
3383: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3384: /*sense_flags*/SF_RETRY_UA|SF_RETRY_SELTO);
3385:
3386: xpt_release_ccb(ccb);
3387:
3388: return(error);
3389: }
3390:
3391: /*
3392: * All MODE_SENSE requests in the cd(4) driver MUST go through this
3393: * routine. See comments in cd6byteworkaround() for details.
3394: */
3395: static int
3396: cdgetmode(struct cam_periph *periph, struct cd_mode_params *data,
3397: u_int32_t page)
3398: {
3399: struct ccb_scsiio *csio;
3400: struct cd_softc *softc;
3401: union ccb *ccb;
3402: int param_len;
3403: int error;
3404:
3405: softc = (struct cd_softc *)periph->softc;
3406:
3407: ccb = cdgetccb(periph, /* priority */ 1);
3408:
3409: csio = &ccb->csio;
3410:
3411: data->cdb_size = softc->minimum_command_size;
3412: if (data->cdb_size < 10)
3413: param_len = sizeof(struct cd_mode_data);
3414: else
3415: param_len = sizeof(struct cd_mode_data_10);
3416:
3417: /* Don't say we've got more room than we actually allocated */
3418: param_len = min(param_len, data->alloc_len);
3419:
3420: scsi_mode_sense_len(csio,
3421: /* retries */ 1,
3422: /* cbfcnp */ cddone,
3423: /* tag_action */ MSG_SIMPLE_Q_TAG,
3424: /* dbd */ 0,
3425: /* page_code */ SMS_PAGE_CTRL_CURRENT,
3426: /* page */ page,
3427: /* param_buf */ data->mode_buf,
3428: /* param_len */ param_len,
3429: /* minimum_cmd_size */ softc->minimum_command_size,
3430: /* sense_len */ SSD_FULL_SIZE,
3431: /* timeout */ 50000);
3432:
3433: /*
3434: * It would be nice not to have to do this, but there's no
3435: * available pointer in the CCB that would allow us to stuff the
3436: * mode params structure in there and retrieve it in
3437: * cd6byteworkaround(), so we can set the cdb size. The cdb size
3438: * lets the caller know what CDB size we ended up using, so they
3439: * can find the actual mode page offset.
3440: */
3441: STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
3442:
3443: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3444: /*sense_flags*/SF_RETRY_UA|SF_RETRY_SELTO);
3445:
3446: xpt_release_ccb(ccb);
3447:
3448: STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3449:
3450: /*
3451: * This is a bit of belt-and-suspenders checking, but if we run
3452: * into a situation where the target sends back multiple block
3453: * descriptors, we might not have enough space in the buffer to
3454: * see the whole mode page. Better to return an error than
3455: * potentially access memory beyond our malloced region.
3456: */
3457: if (error == 0) {
3458: u_int32_t data_len;
3459:
3460: if (data->cdb_size == 10) {
3461: struct scsi_mode_header_10 *hdr10;
3462:
3463: hdr10 = (struct scsi_mode_header_10 *)data->mode_buf;
3464: data_len = scsi_2btoul(hdr10->data_length);
3465: data_len += sizeof(hdr10->data_length);
3466: } else {
3467: struct scsi_mode_header_6 *hdr6;
3468:
3469: hdr6 = (struct scsi_mode_header_6 *)data->mode_buf;
3470: data_len = hdr6->data_length;
3471: data_len += sizeof(hdr6->data_length);
3472: }
3473:
3474: /*
3475: * Complain if there is more mode data available than we
3476: * allocated space for. This could potentially happen if
3477: * we miscalculated the page length for some reason, if the
3478: * drive returns multiple block descriptors, or if it sets
3479: * the data length incorrectly.
3480: */
3481: if (data_len > data->alloc_len) {
3482: xpt_print_path(periph->path);
3483: printf("allocated modepage %d length %d < returned "
3484: "length %d\n", page, data->alloc_len, data_len);
3485:
3486: error = ENOSPC;
3487: }
3488: }
3489: return (error);
3490: }
3491:
3492: /*
3493: * All MODE_SELECT requests in the cd(4) driver MUST go through this
3494: * routine. See comments in cd6byteworkaround() for details.
3495: */
3496: static int
3497: cdsetmode(struct cam_periph *periph, struct cd_mode_params *data)
3498: {
3499: struct ccb_scsiio *csio;
3500: struct cd_softc *softc;
3501: union ccb *ccb;
3502: int cdb_size, param_len;
3503: int error;
3504:
3505: softc = (struct cd_softc *)periph->softc;
3506:
3507: ccb = cdgetccb(periph, /* priority */ 1);
3508:
3509: csio = &ccb->csio;
3510:
3511: error = 0;
3512:
3513: /*
3514: * If the data is formatted for the 10 byte version of the mode
3515: * select parameter list, we need to use the 10 byte CDB.
3516: * Otherwise, we use whatever the stored minimum command size.
3517: */
3518: if (data->cdb_size == 10)
3519: cdb_size = data->cdb_size;
3520: else
3521: cdb_size = softc->minimum_command_size;
3522:
3523: if (cdb_size >= 10) {
3524: struct scsi_mode_header_10 *mode_header;
3525: u_int32_t data_len;
3526:
3527: mode_header = (struct scsi_mode_header_10 *)data->mode_buf;
3528:
3529: data_len = scsi_2btoul(mode_header->data_length);
3530:
3531: scsi_ulto2b(0, mode_header->data_length);
3532: /*
3533: * SONY drives do not allow a mode select with a medium_type
3534: * value that has just been returned by a mode sense; use a
3535: * medium_type of 0 (Default) instead.
3536: */
3537: mode_header->medium_type = 0;
3538:
3539: /*
3540: * Pass back whatever the drive passed to us, plus the size
3541: * of the data length field.
3542: */
3543: param_len = data_len + sizeof(mode_header->data_length);
3544:
3545: } else {
3546: struct scsi_mode_header_6 *mode_header;
3547:
3548: mode_header = (struct scsi_mode_header_6 *)data->mode_buf;
3549:
3550: param_len = mode_header->data_length + 1;
3551:
3552: mode_header->data_length = 0;
3553: /*
3554: * SONY drives do not allow a mode select with a medium_type
3555: * value that has just been returned by a mode sense; use a
3556: * medium_type of 0 (Default) instead.
3557: */
3558: mode_header->medium_type = 0;
3559: }
3560:
3561: /* Don't say we've got more room than we actually allocated */
3562: param_len = min(param_len, data->alloc_len);
3563:
3564: scsi_mode_select_len(csio,
3565: /* retries */ 1,
3566: /* cbfcnp */ cddone,
3567: /* tag_action */ MSG_SIMPLE_Q_TAG,
3568: /* scsi_page_fmt */ 1,
3569: /* save_pages */ 0,
3570: /* param_buf */ data->mode_buf,
3571: /* param_len */ param_len,
3572: /* minimum_cmd_size */ cdb_size,
3573: /* sense_len */ SSD_FULL_SIZE,
3574: /* timeout */ 50000);
3575:
3576: /* See comments in cdgetmode() and cd6byteworkaround(). */
3577: STAILQ_INSERT_TAIL(&softc->mode_queue, data, links);
3578:
3579: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3580: /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3581:
3582: xpt_release_ccb(ccb);
3583:
3584: STAILQ_REMOVE(&softc->mode_queue, data, cd_mode_params, links);
3585:
3586: return (error);
3587: }
3588:
3589:
3590:
3591: static int
3592: cdplay(struct cam_periph *periph, u_int32_t blk, u_int32_t len)
3593: {
3594: struct ccb_scsiio *csio;
3595: union ccb *ccb;
3596: int error;
3597: u_int8_t cdb_len;
3598:
3599: error = 0;
3600: ccb = cdgetccb(periph, /* priority */ 1);
3601: csio = &ccb->csio;
3602: /*
3603: * Use the smallest possible command to perform the operation.
3604: */
3605: if ((len & 0xffff0000) == 0) {
3606: /*
3607: * We can fit in a 10 byte cdb.
3608: */
3609: struct scsi_play_10 *scsi_cmd;
3610:
3611: scsi_cmd = (struct scsi_play_10 *)&csio->cdb_io.cdb_bytes;
3612: bzero (scsi_cmd, sizeof(*scsi_cmd));
3613: scsi_cmd->op_code = PLAY_10;
3614: scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3615: scsi_ulto2b(len, (u_int8_t *)scsi_cmd->xfer_len);
3616: cdb_len = sizeof(*scsi_cmd);
3617: } else {
3618: struct scsi_play_12 *scsi_cmd;
3619:
3620: scsi_cmd = (struct scsi_play_12 *)&csio->cdb_io.cdb_bytes;
3621: bzero (scsi_cmd, sizeof(*scsi_cmd));
3622: scsi_cmd->op_code = PLAY_12;
3623: scsi_ulto4b(blk, (u_int8_t *)scsi_cmd->blk_addr);
3624: scsi_ulto4b(len, (u_int8_t *)scsi_cmd->xfer_len);
3625: cdb_len = sizeof(*scsi_cmd);
3626: }
3627: cam_fill_csio(csio,
3628: /*retries*/2,
3629: cddone,
3630: /*flags*/CAM_DIR_NONE,
3631: MSG_SIMPLE_Q_TAG,
3632: /*dataptr*/NULL,
3633: /*datalen*/0,
3634: /*sense_len*/SSD_FULL_SIZE,
3635: cdb_len,
3636: /*timeout*/50 * 1000);
3637:
3638: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3639: /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3640:
3641: xpt_release_ccb(ccb);
3642:
3643: return(error);
3644: }
3645:
3646: static int
3647: cdplaymsf(struct cam_periph *periph, u_int32_t startm, u_int32_t starts,
3648: u_int32_t startf, u_int32_t endm, u_int32_t ends, u_int32_t endf)
3649: {
3650: struct scsi_play_msf *scsi_cmd;
3651: struct ccb_scsiio *csio;
3652: union ccb *ccb;
3653: int error;
3654:
3655: error = 0;
3656:
3657: ccb = cdgetccb(periph, /* priority */ 1);
3658:
3659: csio = &ccb->csio;
3660:
3661: cam_fill_csio(csio,
3662: /* retries */ 1,
3663: /* cbfcnp */ cddone,
3664: /* flags */ CAM_DIR_NONE,
3665: /* tag_action */ MSG_SIMPLE_Q_TAG,
3666: /* data_ptr */ NULL,
3667: /* dxfer_len */ 0,
3668: /* sense_len */ SSD_FULL_SIZE,
3669: sizeof(struct scsi_play_msf),
3670: /* timeout */ 50000);
3671:
3672: scsi_cmd = (struct scsi_play_msf *)&csio->cdb_io.cdb_bytes;
3673: bzero (scsi_cmd, sizeof(*scsi_cmd));
3674:
3675: scsi_cmd->op_code = PLAY_MSF;
3676: scsi_cmd->start_m = startm;
3677: scsi_cmd->start_s = starts;
3678: scsi_cmd->start_f = startf;
3679: scsi_cmd->end_m = endm;
3680: scsi_cmd->end_s = ends;
3681: scsi_cmd->end_f = endf;
3682:
3683: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3684: /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3685:
3686: xpt_release_ccb(ccb);
3687:
3688: return(error);
3689: }
3690:
3691:
3692: static int
3693: cdplaytracks(struct cam_periph *periph, u_int32_t strack, u_int32_t sindex,
3694: u_int32_t etrack, u_int32_t eindex)
3695: {
3696: struct scsi_play_track *scsi_cmd;
3697: struct ccb_scsiio *csio;
3698: union ccb *ccb;
3699: int error;
3700:
3701: error = 0;
3702:
3703: ccb = cdgetccb(periph, /* priority */ 1);
3704:
3705: csio = &ccb->csio;
3706:
3707: cam_fill_csio(csio,
3708: /* retries */ 1,
3709: /* cbfcnp */ cddone,
3710: /* flags */ CAM_DIR_NONE,
3711: /* tag_action */ MSG_SIMPLE_Q_TAG,
3712: /* data_ptr */ NULL,
3713: /* dxfer_len */ 0,
3714: /* sense_len */ SSD_FULL_SIZE,
3715: sizeof(struct scsi_play_track),
3716: /* timeout */ 50000);
3717:
3718: scsi_cmd = (struct scsi_play_track *)&csio->cdb_io.cdb_bytes;
3719: bzero (scsi_cmd, sizeof(*scsi_cmd));
3720:
3721: scsi_cmd->op_code = PLAY_TRACK;
3722: scsi_cmd->start_track = strack;
3723: scsi_cmd->start_index = sindex;
3724: scsi_cmd->end_track = etrack;
3725: scsi_cmd->end_index = eindex;
3726:
3727: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3728: /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3729:
3730: xpt_release_ccb(ccb);
3731:
3732: return(error);
3733: }
3734:
3735: static int
3736: cdpause(struct cam_periph *periph, u_int32_t go)
3737: {
3738: struct scsi_pause *scsi_cmd;
3739: struct ccb_scsiio *csio;
3740: union ccb *ccb;
3741: int error;
3742:
3743: error = 0;
3744:
3745: ccb = cdgetccb(periph, /* priority */ 1);
3746:
3747: csio = &ccb->csio;
3748:
3749: cam_fill_csio(csio,
3750: /* retries */ 1,
3751: /* cbfcnp */ cddone,
3752: /* flags */ CAM_DIR_NONE,
3753: /* tag_action */ MSG_SIMPLE_Q_TAG,
3754: /* data_ptr */ NULL,
3755: /* dxfer_len */ 0,
3756: /* sense_len */ SSD_FULL_SIZE,
3757: sizeof(struct scsi_pause),
3758: /* timeout */ 50000);
3759:
3760: scsi_cmd = (struct scsi_pause *)&csio->cdb_io.cdb_bytes;
3761: bzero (scsi_cmd, sizeof(*scsi_cmd));
3762:
3763: scsi_cmd->op_code = PAUSE;
3764: scsi_cmd->resume = go;
3765:
3766: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3767: /*sense_flags*/SF_RETRY_UA |SF_RETRY_SELTO);
3768:
3769: xpt_release_ccb(ccb);
3770:
3771: return(error);
3772: }
3773:
3774: static int
3775: cdstartunit(struct cam_periph *periph, int load)
3776: {
3777: union ccb *ccb;
3778: int error;
3779:
3780: error = 0;
3781:
3782: ccb = cdgetccb(periph, /* priority */ 1);
3783:
3784: scsi_start_stop(&ccb->csio,
3785: /* retries */ 1,
3786: /* cbfcnp */ cddone,
3787: /* tag_action */ MSG_SIMPLE_Q_TAG,
3788: /* start */ TRUE,
3789: /* load_eject */ load,
3790: /* immediate */ FALSE,
3791: /* sense_len */ SSD_FULL_SIZE,
3792: /* timeout */ 50000);
3793:
3794: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3795: /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3796:
3797: xpt_release_ccb(ccb);
3798:
3799: return(error);
3800: }
3801:
3802: static int
3803: cdstopunit(struct cam_periph *periph, u_int32_t eject)
3804: {
3805: union ccb *ccb;
3806: int error;
3807:
3808: error = 0;
3809:
3810: ccb = cdgetccb(periph, /* priority */ 1);
3811:
3812: scsi_start_stop(&ccb->csio,
3813: /* retries */ 1,
3814: /* cbfcnp */ cddone,
3815: /* tag_action */ MSG_SIMPLE_Q_TAG,
3816: /* start */ FALSE,
3817: /* load_eject */ eject,
3818: /* immediate */ FALSE,
3819: /* sense_len */ SSD_FULL_SIZE,
3820: /* timeout */ 50000);
3821:
3822: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3823: /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3824:
3825: xpt_release_ccb(ccb);
3826:
3827: return(error);
3828: }
3829:
3830: static int
3831: cdsetspeed(struct cam_periph *periph, u_int32_t rdspeed, u_int32_t wrspeed)
3832: {
3833: struct scsi_set_speed *scsi_cmd;
3834: struct ccb_scsiio *csio;
3835: union ccb *ccb;
3836: int error;
3837:
3838: error = 0;
3839: ccb = cdgetccb(periph, /* priority */ 1);
3840: csio = &ccb->csio;
3841:
3842: /* Preserve old behavior: units in multiples of CDROM speed */
3843: if (rdspeed < 177)
3844: rdspeed *= 177;
3845: if (wrspeed < 177)
3846: wrspeed *= 177;
3847:
3848: cam_fill_csio(csio,
3849: /* retries */ 1,
3850: /* cbfcnp */ cddone,
3851: /* flags */ CAM_DIR_NONE,
3852: /* tag_action */ MSG_SIMPLE_Q_TAG,
3853: /* data_ptr */ NULL,
3854: /* dxfer_len */ 0,
3855: /* sense_len */ SSD_FULL_SIZE,
3856: sizeof(struct scsi_set_speed),
3857: /* timeout */ 50000);
3858:
3859: scsi_cmd = (struct scsi_set_speed *)&csio->cdb_io.cdb_bytes;
3860: bzero(scsi_cmd, sizeof(*scsi_cmd));
3861:
3862: scsi_cmd->opcode = SET_CD_SPEED;
3863: scsi_ulto2b(rdspeed, scsi_cmd->readspeed);
3864: scsi_ulto2b(wrspeed, scsi_cmd->writespeed);
3865:
3866: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3867: /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3868:
3869: xpt_release_ccb(ccb);
3870:
3871: return(error);
3872: }
3873:
3874: static int
3875: cdreportkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
3876: {
3877: union ccb *ccb;
3878: u_int8_t *databuf;
3879: u_int32_t lba;
3880: int error;
3881: int length;
3882:
3883: error = 0;
3884: databuf = NULL;
3885: lba = 0;
3886:
3887: ccb = cdgetccb(periph, /* priority */ 1);
3888:
3889: switch (authinfo->format) {
3890: case DVD_REPORT_AGID:
3891: length = sizeof(struct scsi_report_key_data_agid);
3892: break;
3893: case DVD_REPORT_CHALLENGE:
3894: length = sizeof(struct scsi_report_key_data_challenge);
3895: break;
3896: case DVD_REPORT_KEY1:
3897: length = sizeof(struct scsi_report_key_data_key1_key2);
3898: break;
3899: case DVD_REPORT_TITLE_KEY:
3900: length = sizeof(struct scsi_report_key_data_title);
3901: /* The lba field is only set for the title key */
3902: lba = authinfo->lba;
3903: break;
3904: case DVD_REPORT_ASF:
3905: length = sizeof(struct scsi_report_key_data_asf);
3906: break;
3907: case DVD_REPORT_RPC:
3908: length = sizeof(struct scsi_report_key_data_rpc);
3909: break;
3910: case DVD_INVALIDATE_AGID:
3911: length = 0;
3912: break;
3913: default:
3914: error = EINVAL;
3915: goto bailout;
3916: break; /* NOTREACHED */
3917: }
3918:
3919: if (length != 0) {
3920: databuf = malloc(length, M_DEVBUF, M_INTWAIT | M_ZERO);
3921: } else {
3922: databuf = NULL;
3923: }
3924:
3925:
3926: scsi_report_key(&ccb->csio,
3927: /* retries */ 1,
3928: /* cbfcnp */ cddone,
3929: /* tag_action */ MSG_SIMPLE_Q_TAG,
3930: /* lba */ lba,
3931: /* agid */ authinfo->agid,
3932: /* key_format */ authinfo->format,
3933: /* data_ptr */ databuf,
3934: /* dxfer_len */ length,
3935: /* sense_len */ SSD_FULL_SIZE,
3936: /* timeout */ 50000);
3937:
3938: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
3939: /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
3940:
3941: if (error != 0)
3942: goto bailout;
3943:
3944: if (ccb->csio.resid != 0) {
3945: xpt_print_path(periph->path);
3946: printf("warning, residual for report key command is %d\n",
3947: ccb->csio.resid);
3948: }
3949:
3950: switch(authinfo->format) {
3951: case DVD_REPORT_AGID: {
3952: struct scsi_report_key_data_agid *agid_data;
3953:
3954: agid_data = (struct scsi_report_key_data_agid *)databuf;
3955:
3956: authinfo->agid = (agid_data->agid & RKD_AGID_MASK) >>
3957: RKD_AGID_SHIFT;
3958: break;
3959: }
3960: case DVD_REPORT_CHALLENGE: {
3961: struct scsi_report_key_data_challenge *chal_data;
3962:
3963: chal_data = (struct scsi_report_key_data_challenge *)databuf;
3964:
3965: bcopy(chal_data->challenge_key, authinfo->keychal,
3966: min(sizeof(chal_data->challenge_key),
3967: sizeof(authinfo->keychal)));
3968: break;
3969: }
3970: case DVD_REPORT_KEY1: {
3971: struct scsi_report_key_data_key1_key2 *key1_data;
3972:
3973: key1_data = (struct scsi_report_key_data_key1_key2 *)databuf;
3974:
3975: bcopy(key1_data->key1, authinfo->keychal,
3976: min(sizeof(key1_data->key1), sizeof(authinfo->keychal)));
3977: break;
3978: }
3979: case DVD_REPORT_TITLE_KEY: {
3980: struct scsi_report_key_data_title *title_data;
3981:
3982: title_data = (struct scsi_report_key_data_title *)databuf;
3983:
3984: authinfo->cpm = (title_data->byte0 & RKD_TITLE_CPM) >>
3985: RKD_TITLE_CPM_SHIFT;
3986: authinfo->cp_sec = (title_data->byte0 & RKD_TITLE_CP_SEC) >>
3987: RKD_TITLE_CP_SEC_SHIFT;
3988: authinfo->cgms = (title_data->byte0 & RKD_TITLE_CMGS_MASK) >>
3989: RKD_TITLE_CMGS_SHIFT;
3990: bcopy(title_data->title_key, authinfo->keychal,
3991: min(sizeof(title_data->title_key),
3992: sizeof(authinfo->keychal)));
3993: break;
3994: }
3995: case DVD_REPORT_ASF: {
3996: struct scsi_report_key_data_asf *asf_data;
3997:
3998: asf_data = (struct scsi_report_key_data_asf *)databuf;
3999:
4000: authinfo->asf = asf_data->success & RKD_ASF_SUCCESS;
4001: break;
4002: }
4003: case DVD_REPORT_RPC: {
4004: struct scsi_report_key_data_rpc *rpc_data;
4005:
4006: rpc_data = (struct scsi_report_key_data_rpc *)databuf;
4007:
4008: authinfo->reg_type = (rpc_data->byte4 & RKD_RPC_TYPE_MASK) >>
4009: RKD_RPC_TYPE_SHIFT;
4010: authinfo->vend_rsts =
4011: (rpc_data->byte4 & RKD_RPC_VENDOR_RESET_MASK) >>
4012: RKD_RPC_VENDOR_RESET_SHIFT;
4013: authinfo->user_rsts = rpc_data->byte4 & RKD_RPC_USER_RESET_MASK;
4014: authinfo->region = rpc_data->region_mask;
4015: authinfo->rpc_scheme = rpc_data->rpc_scheme1;
4016: break;
4017: }
4018: case DVD_INVALIDATE_AGID:
4019: break;
4020: default:
4021: /* This should be impossible, since we checked above */
4022: error = EINVAL;
4023: goto bailout;
4024: break; /* NOTREACHED */
4025: }
4026: bailout:
4027: if (databuf != NULL)
4028: free(databuf, M_DEVBUF);
4029:
4030: xpt_release_ccb(ccb);
4031:
4032: return(error);
4033: }
4034:
4035: static int
4036: cdsendkey(struct cam_periph *periph, struct dvd_authinfo *authinfo)
4037: {
4038: union ccb *ccb;
4039: u_int8_t *databuf;
4040: int length;
4041: int error;
4042:
4043: error = 0;
4044: databuf = NULL;
4045:
4046: ccb = cdgetccb(periph, /* priority */ 1);
4047:
4048: switch(authinfo->format) {
4049: case DVD_SEND_CHALLENGE: {
4050: struct scsi_report_key_data_challenge *challenge_data;
4051:
4052: length = sizeof(*challenge_data);
4053:
4054: challenge_data = malloc(length, M_DEVBUF, M_INTWAIT | M_ZERO);
4055:
4056: databuf = (u_int8_t *)challenge_data;
4057:
4058: scsi_ulto2b(length - sizeof(challenge_data->data_len),
4059: challenge_data->data_len);
4060:
4061: bcopy(authinfo->keychal, challenge_data->challenge_key,
4062: min(sizeof(authinfo->keychal),
4063: sizeof(challenge_data->challenge_key)));
4064: break;
4065: }
4066: case DVD_SEND_KEY2: {
4067: struct scsi_report_key_data_key1_key2 *key2_data;
4068:
4069: length = sizeof(*key2_data);
4070:
4071: key2_data = malloc(length, M_DEVBUF, M_INTWAIT | M_ZERO);
4072:
4073: databuf = (u_int8_t *)key2_data;
4074:
4075: scsi_ulto2b(length - sizeof(key2_data->data_len),
4076: key2_data->data_len);
4077:
4078: bcopy(authinfo->keychal, key2_data->key1,
4079: min(sizeof(authinfo->keychal), sizeof(key2_data->key1)));
4080:
4081: break;
4082: }
4083: case DVD_SEND_RPC: {
4084: struct scsi_send_key_data_rpc *rpc_data;
4085:
4086: length = sizeof(*rpc_data);
4087:
4088: rpc_data = malloc(length, M_DEVBUF, M_INTWAIT | M_ZERO);
4089:
4090: databuf = (u_int8_t *)rpc_data;
4091:
4092: scsi_ulto2b(length - sizeof(rpc_data->data_len),
4093: rpc_data->data_len);
4094:
4095: rpc_data->region_code = authinfo->region;
4096: break;
4097: }
4098: default:
4099: error = EINVAL;
4100: goto bailout;
4101: break; /* NOTREACHED */
4102: }
4103:
4104: scsi_send_key(&ccb->csio,
4105: /* retries */ 1,
4106: /* cbfcnp */ cddone,
4107: /* tag_action */ MSG_SIMPLE_Q_TAG,
4108: /* agid */ authinfo->agid,
4109: /* key_format */ authinfo->format,
4110: /* data_ptr */ databuf,
4111: /* dxfer_len */ length,
4112: /* sense_len */ SSD_FULL_SIZE,
4113: /* timeout */ 50000);
4114:
4115: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
4116: /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
4117:
4118: bailout:
4119:
4120: if (databuf != NULL)
4121: free(databuf, M_DEVBUF);
4122:
4123: xpt_release_ccb(ccb);
4124:
4125: return(error);
4126: }
4127:
4128: static int
4129: cdreaddvdstructure(struct cam_periph *periph, struct dvd_struct *dvdstruct)
4130: {
4131: union ccb *ccb;
4132: u_int8_t *databuf;
4133: u_int32_t address;
4134: int error;
4135: int length;
4136:
4137: error = 0;
4138: databuf = NULL;
4139: /* The address is reserved for many of the formats */
4140: address = 0;
4141:
4142: ccb = cdgetccb(periph, /* priority */ 1);
4143:
4144: switch(dvdstruct->format) {
4145: case DVD_STRUCT_PHYSICAL:
4146: length = sizeof(struct scsi_read_dvd_struct_data_physical);
4147: break;
4148: case DVD_STRUCT_COPYRIGHT:
4149: length = sizeof(struct scsi_read_dvd_struct_data_copyright);
4150: break;
4151: case DVD_STRUCT_DISCKEY:
4152: length = sizeof(struct scsi_read_dvd_struct_data_disc_key);
4153: break;
4154: case DVD_STRUCT_BCA:
4155: length = sizeof(struct scsi_read_dvd_struct_data_bca);
4156: break;
4157: case DVD_STRUCT_MANUFACT:
4158: length = sizeof(struct scsi_read_dvd_struct_data_manufacturer);
4159: break;
4160: case DVD_STRUCT_CMI:
4161: error = ENODEV;
4162: goto bailout;
4163: #ifdef notyet
4164: length = sizeof(struct scsi_read_dvd_struct_data_copy_manage);
4165: address = dvdstruct->address;
4166: #endif
4167: break; /* NOTREACHED */
4168: case DVD_STRUCT_PROTDISCID:
4169: length = sizeof(struct scsi_read_dvd_struct_data_prot_discid);
4170: break;
4171: case DVD_STRUCT_DISCKEYBLOCK:
4172: length = sizeof(struct scsi_read_dvd_struct_data_disc_key_blk);
4173: break;
4174: case DVD_STRUCT_DDS:
4175: length = sizeof(struct scsi_read_dvd_struct_data_dds);
4176: break;
4177: case DVD_STRUCT_MEDIUM_STAT:
4178: length = sizeof(struct scsi_read_dvd_struct_data_medium_status);
4179: break;
4180: case DVD_STRUCT_SPARE_AREA:
4181: length = sizeof(struct scsi_read_dvd_struct_data_spare_area);
4182: break;
4183: case DVD_STRUCT_RMD_LAST:
4184: error = ENODEV;
4185: goto bailout;
4186: #ifdef notyet
4187: length = sizeof(struct scsi_read_dvd_struct_data_rmd_borderout);
4188: address = dvdstruct->address;
4189: #endif
4190: break; /* NOTREACHED */
4191: case DVD_STRUCT_RMD_RMA:
4192: error = ENODEV;
4193: goto bailout;
4194: #ifdef notyet
4195: length = sizeof(struct scsi_read_dvd_struct_data_rmd);
4196: address = dvdstruct->address;
4197: #endif
4198: break; /* NOTREACHED */
4199: case DVD_STRUCT_PRERECORDED:
4200: length = sizeof(struct scsi_read_dvd_struct_data_leadin);
4201: break;
4202: case DVD_STRUCT_UNIQUEID:
4203: length = sizeof(struct scsi_read_dvd_struct_data_disc_id);
4204: break;
4205: case DVD_STRUCT_DCB:
4206: error = ENODEV;
4207: goto bailout;
4208: #ifdef notyet
4209: length = sizeof(struct scsi_read_dvd_struct_data_dcb);
4210: address = dvdstruct->address;
4211: #endif
4212: break; /* NOTREACHED */
4213: case DVD_STRUCT_LIST:
4214: /*
4215: * This is the maximum allocation length for the READ DVD
4216: * STRUCTURE command. There's nothing in the MMC3 spec
4217: * that indicates a limit in the amount of data that can
4218: * be returned from this call, other than the limits
4219: * imposed by the 2-byte length variables.
4220: */
4221: length = 65535;
4222: break;
4223: default:
4224: error = EINVAL;
4225: goto bailout;
4226: break; /* NOTREACHED */
4227: }
4228:
4229: if (length != 0) {
4230: databuf = malloc(length, M_DEVBUF, M_INTWAIT | M_ZERO);
4231: } else {
4232: databuf = NULL;
4233: }
4234:
4235: scsi_read_dvd_structure(&ccb->csio,
4236: /* retries */ 1,
4237: /* cbfcnp */ cddone,
4238: /* tag_action */ MSG_SIMPLE_Q_TAG,
4239: /* lba */ address,
4240: /* layer_number */ dvdstruct->layer_num,
4241: /* key_format */ dvdstruct->format,
4242: /* agid */ dvdstruct->agid,
4243: /* data_ptr */ databuf,
4244: /* dxfer_len */ length,
4245: /* sense_len */ SSD_FULL_SIZE,
4246: /* timeout */ 50000);
4247:
4248: error = cdrunccb(ccb, cderror, /*cam_flags*/0,
4249: /*sense_flags*/SF_RETRY_UA | SF_RETRY_SELTO);
4250:
4251: if (error != 0)
4252: goto bailout;
4253:
4254: switch(dvdstruct->format) {
4255: case DVD_STRUCT_PHYSICAL: {
4256: struct scsi_read_dvd_struct_data_layer_desc *inlayer;
4257: struct dvd_layer *outlayer;
4258: struct scsi_read_dvd_struct_data_physical *phys_data;
4259:
4260: phys_data =
4261: (struct scsi_read_dvd_struct_data_physical *)databuf;
4262: inlayer = &phys_data->layer_desc;
4263: outlayer = (struct dvd_layer *)&dvdstruct->data;
4264:
4265: dvdstruct->length = sizeof(*inlayer);
4266:
4267: outlayer->book_type = (inlayer->book_type_version &
4268: RDSD_BOOK_TYPE_MASK) >> RDSD_BOOK_TYPE_SHIFT;
4269: outlayer->book_version = (inlayer->book_type_version &
4270: RDSD_BOOK_VERSION_MASK);
4271: outlayer->disc_size = (inlayer->disc_size_max_rate &
4272: RDSD_DISC_SIZE_MASK) >> RDSD_DISC_SIZE_SHIFT;
4273: outlayer->max_rate = (inlayer->disc_size_max_rate &
4274: RDSD_MAX_RATE_MASK);
4275: outlayer->nlayers = (inlayer->layer_info &
4276: RDSD_NUM_LAYERS_MASK) >> RDSD_NUM_LAYERS_SHIFT;
4277: outlayer->track_path = (inlayer->layer_info &
4278: RDSD_TRACK_PATH_MASK) >> RDSD_TRACK_PATH_SHIFT;
4279: outlayer->layer_type = (inlayer->layer_info &
4280: RDSD_LAYER_TYPE_MASK);
4281: outlayer->linear_density = (inlayer->density &
4282: RDSD_LIN_DENSITY_MASK) >> RDSD_LIN_DENSITY_SHIFT;
4283: outlayer->track_density = (inlayer->density &
4284: RDSD_TRACK_DENSITY_MASK);
4285: outlayer->bca = (inlayer->bca & RDSD_BCA_MASK) >>
4286: RDSD_BCA_SHIFT;
4287: outlayer->start_sector = scsi_3btoul(inlayer->main_data_start);
4288: outlayer->end_sector = scsi_3btoul(inlayer->main_data_end);
4289: outlayer->end_sector_l0 =
4290: scsi_3btoul(inlayer->end_sector_layer0);
4291: break;
4292: }
4293: case DVD_STRUCT_COPYRIGHT: {
4294: struct scsi_read_dvd_struct_data_copyright *copy_data;
4295:
4296: copy_data = (struct scsi_read_dvd_struct_data_copyright *)
4297: databuf;
4298:
4299: dvdstruct->cpst = copy_data->cps_type;
4300: dvdstruct->rmi = copy_data->region_info;
4301: dvdstruct->length = 0;
4302:
4303: break;
4304: }
4305: default:
4306: /*
4307: * Tell the user what the overall length is, no matter
4308: * what we can actually fit in the data buffer.
4309: */
4310: dvdstruct->length = length - ccb->csio.resid -
4311: sizeof(struct scsi_read_dvd_struct_data_header);
4312:
4313: /*
4314: * But only actually copy out the smaller of what we read
4315: * in or what the structure can take.
4316: */
4317: bcopy(databuf + sizeof(struct scsi_read_dvd_struct_data_header),
4318: dvdstruct->data,
4319: min(sizeof(dvdstruct->data), dvdstruct->length));
4320: break;
4321: }
4322: bailout:
4323:
4324: if (databuf != NULL)
4325: free(databuf, M_DEVBUF);
4326:
4327: xpt_release_ccb(ccb);
4328:
4329: return(error);
4330: }
4331:
4332: void
4333: scsi_report_key(struct ccb_scsiio *csio, u_int32_t retries,
4334: void (*cbfcnp)(struct cam_periph *, union ccb *),
4335: u_int8_t tag_action, u_int32_t lba, u_int8_t agid,
4336: u_int8_t key_format, u_int8_t *data_ptr, u_int32_t dxfer_len,
4337: u_int8_t sense_len, u_int32_t timeout)
4338: {
4339: struct scsi_report_key *scsi_cmd;
4340:
4341: scsi_cmd = (struct scsi_report_key *)&csio->cdb_io.cdb_bytes;
4342: bzero(scsi_cmd, sizeof(*scsi_cmd));
4343: scsi_cmd->opcode = REPORT_KEY;
4344: scsi_ulto4b(lba, scsi_cmd->lba);
4345: scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
4346: scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
4347: (key_format & RK_KF_KEYFORMAT_MASK);
4348:
4349: cam_fill_csio(csio,
4350: retries,
4351: cbfcnp,
4352: /*flags*/ (dxfer_len == 0) ? CAM_DIR_NONE : CAM_DIR_IN,
4353: tag_action,
4354: /*data_ptr*/ data_ptr,
4355: /*dxfer_len*/ dxfer_len,
4356: sense_len,
4357: sizeof(*scsi_cmd),
4358: timeout);
4359: }
4360:
4361: void
4362: scsi_send_key(struct ccb_scsiio *csio, u_int32_t retries,
4363: void (*cbfcnp)(struct cam_periph *, union ccb *),
4364: u_int8_t tag_action, u_int8_t agid, u_int8_t key_format,
4365: u_int8_t *data_ptr, u_int32_t dxfer_len, u_int8_t sense_len,
4366: u_int32_t timeout)
4367: {
4368: struct scsi_send_key *scsi_cmd;
4369:
4370: scsi_cmd = (struct scsi_send_key *)&csio->cdb_io.cdb_bytes;
4371: bzero(scsi_cmd, sizeof(*scsi_cmd));
4372: scsi_cmd->opcode = SEND_KEY;
4373:
4374: scsi_ulto2b(dxfer_len, scsi_cmd->param_len);
4375: scsi_cmd->agid_keyformat = (agid << RK_KF_AGID_SHIFT) |
4376: (key_format & RK_KF_KEYFORMAT_MASK);
4377:
4378: cam_fill_csio(csio,
4379: retries,
4380: cbfcnp,
4381: /*flags*/ CAM_DIR_OUT,
4382: tag_action,
4383: /*data_ptr*/ data_ptr,
4384: /*dxfer_len*/ dxfer_len,
4385: sense_len,
4386: sizeof(*scsi_cmd),
4387: timeout);
4388: }
4389:
4390:
4391: void
4392: scsi_read_dvd_structure(struct ccb_scsiio *csio, u_int32_t retries,
4393: void (*cbfcnp)(struct cam_periph *, union ccb *),
4394: u_int8_t tag_action, u_int32_t address,
4395: u_int8_t layer_number, u_int8_t format, u_int8_t agid,
4396: u_int8_t *data_ptr, u_int32_t dxfer_len,
4397: u_int8_t sense_len, u_int32_t timeout)
4398: {
4399: struct scsi_read_dvd_structure *scsi_cmd;
4400:
4401: scsi_cmd = (struct scsi_read_dvd_structure *)&csio->cdb_io.cdb_bytes;
4402: bzero(scsi_cmd, sizeof(*scsi_cmd));
4403: scsi_cmd->opcode = READ_DVD_STRUCTURE;
4404:
4405: scsi_ulto4b(address, scsi_cmd->address);
4406: scsi_cmd->layer_number = layer_number;
4407: scsi_cmd->format = format;
4408: scsi_ulto2b(dxfer_len, scsi_cmd->alloc_len);
4409: /* The AGID is the top two bits of this byte */
4410: scsi_cmd->agid = agid << 6;
4411:
4412: cam_fill_csio(csio,
4413: retries,
4414: cbfcnp,
4415: /*flags*/ CAM_DIR_IN,
4416: tag_action,
4417: /*data_ptr*/ data_ptr,
4418: /*dxfer_len*/ dxfer_len,
4419: sense_len,
4420: sizeof(*scsi_cmd),
4421: timeout);
4422: }
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