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Add a comment that explains why this header has no multiple inclusion guards.
[mplayer/greg.git] / libdvdcss / bsdi_ioctl.c
blobef4c56c30ec13af4194c4b819ca3bcc90a2055b1
1 #include "config.h"
2
3 /*
4 * Hacked version of the linux cdrom.c kernel module - everything except the
5 * DVD handling ripped out and the rest rewritten to use raw SCSI commands
6 * on BSD/OS 4.2 (but should work with earlier versions as well).
7 */
8
9 #include <sys/types.h>
10 #include <stdlib.h>
11 #include <stdio.h>
12 #include <errno.h>
13 #include <unistd.h>
14 #include <sys/ioctl.h>
15 #include </sys/dev/scsi/scsi.h>
16 #include </sys/dev/scsi/scsi_ioctl.h>
17
18 #include "bsdi_dvd.h"
19
20 /*
21 * Now get rid of the override/intercept macro so we can call the real ioctl()
22 * routine!
23 */
24 #undef ioctl
25
26 #define CMD_READ_10 0x28
27 #define CMD_READ_TOC_PMA_ATIP 0x43
28 #define CMD_READ_CD 0xbe
29 #define CMD_START_STOP_UNIT 0x1b
30
31 #define CMD_SEND_KEY 0xa3
32 #define CMD_REPORT_KEY 0xa4
33 #define CMD_READ_DVD_STRUCTURE 0xad
34
35 #define copy_key(dest,src) memcpy((dest), (src), sizeof(dvd_key))
36 #define copy_chal(dest,src) memcpy((dest), (src), sizeof(dvd_challenge))
37
38 /* Define the Cdrom Generic Command structure */
39 typedef struct cgc
40 {
41 u_char cdb[12];
42 u_char *buf;
43 int buflen;
44 int rw;
45 int timeout;
46 scsi_user_sense_t *sus;
47 } cgc_t;
48
49 static int scsi_cmd(int, cgc_t *);
50 static int cdrom_ioctl(int, u_long, void *);
51 static int cdrom_tray_move(int, int);
52 static void cdrom_count_tracks(int, tracktype *);
53 static int dvd_ioctl(int, u_long, void *);
54 static int debug = 0;
55
56 void dvd_cdrom_debug(int flag)
57 {
58 debug = flag;
59 }
60
61 /*
62 * This is the published entry point. Actually applications should simply
63 * include <dvd.h> and not refer to this at all.
64 */
65 int dvd_cdrom_ioctl(int fd, unsigned long cmd, void *arg)
66 {
67 switch (cmd)
68 {
69 case DVD_AUTH:
70 case DVD_READ_STRUCT:
71 return(dvd_ioctl(fd, cmd, arg));
72 case CDROMREADTOCHDR:
73 case CDROMREADTOCENTRY:
74 case CDROMEJECT:
75 case CDROMREADRAW:
76 case CDROMREADMODE1:
77 case CDROMREADMODE2:
78 case CDROMCLOSETRAY:
79 case CDROM_DRIVE_STATUS:
80 case CDROM_DISC_STATUS:
81 return(cdrom_ioctl(fd, cmd, arg));
82 default:
83 return(ioctl(fd, cmd, arg));
84 }
85 }
86
87 static void setup_report_key(cgc_t *cgc, u_int agid, u_int type)
88 {
89
90 cgc->cdb[0] = CMD_REPORT_KEY;
91 cgc->cdb[10] = type | (agid << 6);
92 switch (type)
93 {
94 case 0:
95 case 5:
96 case 8:
97 cgc->buflen = 8;
98 break;
99 case 1:
100 cgc->buflen = 16;
101 break;
102 case 2:
103 case 4:
104 cgc->buflen = 12;
105 break;
106 }
107 cgc->cdb[9] = cgc->buflen;
108 cgc->rw = SUC_READ;;
109 }
110
111 static void setup_send_key(cgc_t *cgc, u_int agid, u_int type)
112 {
113
114 cgc->cdb[0] = CMD_SEND_KEY;
115 cgc->cdb[10] = type | (agid << 6);
116 switch (type)
117 {
118 case 1:
119 cgc->buflen = 16;
120 break;
121 case 3:
122 cgc->buflen = 12;
123 break;
124 case 6:
125 cgc->buflen = 8;
126 break;
127 }
128 cgc->cdb[9] = cgc->buflen;
129 cgc->rw = SUC_WRITE;
130 }
131
132 static void cgc_init(cgc_t *cgc, void *buf, int len, int type)
133 {
134
135 memset(cgc, 0, sizeof (*cgc));
136 if (buf)
137 memset(buf, 0, len);
138 cgc->buf = (u_char *)buf;
139 cgc->buflen = len;
140 cgc->rw = type;
141 cgc->timeout = 5; /* 5 second timeout */
142 }
143
144 static int dvd_do_auth(int fd, dvd_authinfo *ai)
145 {
146 int ret;
147 u_char buf[20];
148 cgc_t cgc;
149 rpc_state_t rpc_state;
150
151 memset(buf, 0, sizeof(buf));
152 cgc_init(&cgc, buf, 0, SUC_READ);
153
154 switch (ai->type)
155 {
156 case DVD_LU_SEND_AGID: /* LU data send */
157 setup_report_key(&cgc, ai->lsa.agid, 0);
158 if (ret = scsi_cmd(fd, &cgc))
159 return ret;
160 ai->lsa.agid = buf[7] >> 6;
161 break;
162 case DVD_LU_SEND_KEY1:
163 setup_report_key(&cgc, ai->lsk.agid, 2);
164 if (ret = scsi_cmd(fd, &cgc))
165 return ret;
166 copy_key(ai->lsk.key, &buf[4]);
167 break;
168 case DVD_LU_SEND_CHALLENGE:
169 setup_report_key(&cgc, ai->lsc.agid, 1);
170 if (ret = scsi_cmd(fd, &cgc))
171 return ret;
172 copy_chal(ai->lsc.chal, &buf[4]);
173 break;
174 case DVD_LU_SEND_TITLE_KEY: /* Post-auth key */
175 setup_report_key(&cgc, ai->lstk.agid, 4);
176 cgc.cdb[5] = ai->lstk.lba;
177 cgc.cdb[4] = ai->lstk.lba >> 8;
178 cgc.cdb[3] = ai->lstk.lba >> 16;
179 cgc.cdb[2] = ai->lstk.lba >> 24;
180 if (ret = scsi_cmd(fd, &cgc))
181 return ret;
182 ai->lstk.cpm = (buf[4] >> 7) & 1;
183 ai->lstk.cp_sec = (buf[4] >> 6) & 1;
184 ai->lstk.cgms = (buf[4] >> 4) & 3;
185 copy_key(ai->lstk.title_key, &buf[5]);
186 break;
187 case DVD_LU_SEND_ASF:
188 setup_report_key(&cgc, ai->lsasf.agid, 5);
189 if (ret = scsi_cmd(fd, &cgc))
190 return ret;
191 ai->lsasf.asf = buf[7] & 1;
192 break;
193 case DVD_HOST_SEND_CHALLENGE: /* LU data receive (LU changes state) */
194 setup_send_key(&cgc, ai->hsc.agid, 1);
195 buf[1] = 0xe;
196 copy_chal(&buf[4], ai->hsc.chal);
197 if (ret = scsi_cmd(fd, &cgc))
198 return ret;
199 ai->type = DVD_LU_SEND_KEY1;
200 break;
201 case DVD_HOST_SEND_KEY2:
202 setup_send_key(&cgc, ai->hsk.agid, 3);
203 buf[1] = 0xa;
204 copy_key(&buf[4], ai->hsk.key);
205 if (ret = scsi_cmd(fd, &cgc))
206 {
207 ai->type = DVD_AUTH_FAILURE;
208 return ret;
209 }
210 ai->type = DVD_AUTH_ESTABLISHED;
211 break;
212 case DVD_INVALIDATE_AGID:
213 setup_report_key(&cgc, ai->lsa.agid, 0x3f);
214 if (ret = scsi_cmd(fd, &cgc))
215 return ret;
216 break;
217 case DVD_LU_SEND_RPC_STATE: /* Get region settings */
218 setup_report_key(&cgc, 0, 8);
219 memset(&rpc_state, 0, sizeof(rpc_state_t));
220 cgc.buf = (char *) &rpc_state;
221 if (ret = scsi_cmd(fd, &cgc))
222 {
223 ai->lrpcs.type = 0;
224 ai->lrpcs.rpc_scheme = 0;
225 }
226 else
227 {
228 ai->lrpcs.type = rpc_state.type_code;
229 ai->lrpcs.vra = rpc_state.vra;
230 ai->lrpcs.ucca = rpc_state.ucca;
231 ai->lrpcs.region_mask = rpc_state.region_mask;
232 ai->lrpcs.rpc_scheme = rpc_state.rpc_scheme;
233 }
234 break;
235 case DVD_HOST_SEND_RPC_STATE: /* Set region settings */
236 setup_send_key(&cgc, 0, 6);
237 buf[1] = 6;
238 buf[4] = ai->hrpcs.pdrc;
239 if (ret = scsi_cmd(fd, &cgc))
240 return ret;
241 break;
242 default:
243 return EINVAL;
244 }
245 return 0;
246 }
247
248 static int dvd_read_physical(int fd, dvd_struct *s)
249 {
250 int ret, i;
251 u_char buf[4 + 4 * 20], *base;
252 struct dvd_layer *layer;
253 cgc_t cgc;
254
255 cgc_init(&cgc, buf, sizeof(buf), SUC_READ);
256 cgc.cdb[0] = CMD_READ_DVD_STRUCTURE;
257 cgc.cdb[6] = s->physical.layer_num;
258 cgc.cdb[7] = s->type;
259 cgc.cdb[9] = cgc.buflen & 0xff;
260
261 if (ret = scsi_cmd(fd, &cgc))
262 return ret;
263
264 base = &buf[4];
265 layer = &s->physical.layer[0];
266
267 /* place the data... really ugly, but at least we won't have to
268 worry about endianess in userspace or here. */
269 for (i = 0; i < 4; ++i, base += 20, ++layer)
270 {
271 memset(layer, 0, sizeof(*layer));
272 layer->book_version = base[0] & 0xf;
273 layer->book_type = base[0] >> 4;
274 layer->min_rate = base[1] & 0xf;
275 layer->disc_size = base[1] >> 4;
276 layer->layer_type = base[2] & 0xf;
277 layer->track_path = (base[2] >> 4) & 1;
278 layer->nlayers = (base[2] >> 5) & 3;
279 layer->track_density = base[3] & 0xf;
280 layer->linear_density = base[3] >> 4;
281 layer->start_sector = base[5] << 16 | base[6] << 8 | base[7];
282 layer->end_sector = base[9] << 16 | base[10] << 8 | base[11];
283 layer->end_sector_l0 = base[13] << 16 | base[14] << 8 | base[15];
284 layer->bca = base[16] >> 7;
285 }
286 return 0;
287 }
288
289 static int dvd_read_copyright(int fd, dvd_struct *s)
290 {
291 int ret;
292 u_char buf[8];
293 cgc_t cgc;
294
295 cgc_init(&cgc, buf, sizeof(buf), SUC_READ);
296 cgc.cdb[0] = CMD_READ_DVD_STRUCTURE;
297 cgc.cdb[6] = s->copyright.layer_num;
298 cgc.cdb[7] = s->type;
299 cgc.cdb[8] = cgc.buflen >> 8;
300 cgc.cdb[9] = cgc.buflen & 0xff;
301
302 if (ret = scsi_cmd(fd, &cgc))
303 return ret;
304 s->copyright.cpst = buf[4];
305 s->copyright.rmi = buf[5];
306 return 0;
307 }
308
309 static int dvd_read_disckey(int fd, dvd_struct *s)
310 {
311 int ret, size;
312 u_char *buf;
313 cgc_t cgc;
314
315 size = sizeof(s->disckey.value) + 4;
316
317 if ((buf = (u_char *) malloc(size)) == NULL)
318 return ENOMEM;
319
320 cgc_init(&cgc, buf, size, SUC_READ);
321 cgc.cdb[0] = CMD_READ_DVD_STRUCTURE;
322 cgc.cdb[7] = s->type;
323 cgc.cdb[8] = size >> 8;
324 cgc.cdb[9] = size & 0xff;
325 cgc.cdb[10] = s->disckey.agid << 6;
326
327 if (!(ret = scsi_cmd(fd, &cgc)))
328 memcpy(s->disckey.value, &buf[4], sizeof(s->disckey.value));
329 free(buf);
330 return ret;
331 }
332
333 static int dvd_read_bca(int fd, dvd_struct *s)
334 {
335 int ret;
336 u_char buf[4 + 188];
337 cgc_t cgc;
338
339 cgc_init(&cgc, buf, sizeof(buf), SUC_READ);
340 cgc.cdb[0] = CMD_READ_DVD_STRUCTURE;
341 cgc.cdb[7] = s->type;
342 cgc.cdb[9] = cgc.buflen = 0xff;
343
344 if (ret = scsi_cmd(fd, &cgc))
345 return ret;
346 s->bca.len = buf[0] << 8 | buf[1];
347 if (s->bca.len < 12 || s->bca.len > 188)
348 return EIO;
349 memcpy(s->bca.value, &buf[4], s->bca.len);
350 return 0;
351 }
352
353 static int dvd_read_manufact(int fd, dvd_struct *s)
354 {
355 int ret = 0, size;
356 u_char *buf;
357 cgc_t cgc;
358
359 size = sizeof(s->manufact.value) + 4;
360
361 if ((buf = (u_char *) malloc(size)) == NULL)
362 return ENOMEM;
363
364 cgc_init(&cgc, buf, size, SUC_READ);
365 cgc.cdb[0] = CMD_READ_DVD_STRUCTURE;
366 cgc.cdb[7] = s->type;
367 cgc.cdb[8] = size >> 8;
368 cgc.cdb[9] = size & 0xff;
369
370 if (ret = scsi_cmd(fd, &cgc))
371 {
372 free(buf);
373 return ret;
374 }
375 s->manufact.len = buf[0] << 8 | buf[1];
376 if (s->manufact.len < 0 || s->manufact.len > 2048)
377 ret = -EIO;
378 else
379 memcpy(s->manufact.value, &buf[4], s->manufact.len);
380 free(buf);
381 return ret;
382 }
383
384 static int dvd_read_struct(int fd, dvd_struct *s)
385 {
386 switch (s->type)
387 {
388 case DVD_STRUCT_PHYSICAL:
389 return dvd_read_physical(fd, s);
390 case DVD_STRUCT_COPYRIGHT:
391 return dvd_read_copyright(fd, s);
392 case DVD_STRUCT_DISCKEY:
393 return dvd_read_disckey(fd, s);
394 case DVD_STRUCT_BCA:
395 return dvd_read_bca(fd, s);
396 case DVD_STRUCT_MANUFACT:
397 return dvd_read_manufact(fd, s);
398 default:
399 return EINVAL;
400 }
401 }
402
403 static u_char scsi_cdblen[8] = {6, 10, 10, 12, 12, 12, 10, 10};
404
405 static int scsi_cmd(int fd, cgc_t *cgc)
406 {
407 int i, scsistatus, cdblen;
408 unsigned char *cp;
409 struct scsi_user_cdb suc;
410
411 /* safety checks */
412 if (cgc->rw != SUC_READ && cgc->rw != SUC_WRITE)
413 return(EINVAL);
414
415 suc.suc_flags = cgc->rw;
416 cdblen = scsi_cdblen[(cgc->cdb[0] >> 5) & 7];
417 suc.suc_cdblen = cdblen;
418 bcopy(cgc->cdb, suc.suc_cdb, cdblen);
419 suc.suc_data = cgc->buf;
420 suc.suc_datalen = cgc->buflen;
421 suc.suc_timeout = cgc->timeout;
422 if (ioctl(fd, SCSIRAWCDB, &suc) == -1)
423 return(errno);
424 scsistatus = suc.suc_sus.sus_status;
425
426 /*
427 * If the device returns a scsi sense error and debugging is enabled print
428 * some hopefully useful information on stderr.
429 */
430 if (scsistatus && debug)
431 {
432 cp = suc.suc_sus.sus_sense;
433 fprintf(stderr,"scsistatus = %x cdb =",
434 scsistatus);
435 for (i = 0; i < cdblen; i++)
436 fprintf(stderr, " %x", cgc->cdb[i]);
437 fprintf(stderr, "\nsense =");
438 for (i = 0; i < 16; i++)
439 fprintf(stderr, " %x", cp[i]);
440 fprintf(stderr, "\n");
441 }
442 if (cgc->sus)
443 bcopy(&suc.suc_sus, cgc->sus, sizeof (struct scsi_user_sense));
444 if (scsistatus)
445 return(EIO); /* generic i/o error for unsuccessful status */
446 return(0);
447 }
448
449 /*
450 * The entry point for the DVDioctls for BSD/OS.
451 */
452 static int dvd_ioctl(int fd, u_long cmd, void *arg)
453 {
454 int ret;
455
456 switch (cmd)
457 {
458 case DVD_READ_STRUCT:
459 ret = dvd_read_struct(fd, (dvd_struct *)arg);
460 if (ret)
461 errno = ret;
462 return(ret ? -1 : 0);
463 case DVD_AUTH:
464 ret = dvd_do_auth(fd, (dvd_authinfo *)arg);
465 if (ret)
466 errno = ret;
467 return(ret ? -1 : 0);
468 default:
469 errno = EINVAL;
470 return(-1);
471 }
472 }
473
474 /*
475 * The entry point for the CDROMioctls for BSD/OS
476 */
477 static int cdrom_read_block(int, cgc_t *, int, int, int, int);
478 static int cdrom_read_cd(int, cgc_t *, int, int, int );
479 int cdrom_blocksize(int, int );
480
481 static inline
482 int msf_to_lba(char m, char s, char f)
483 {
484 return (((m * CD_SECS) + s) * CD_FRAMES + f) - CD_MSF_OFFSET;
485 }
486
487 cdrom_ioctl(int fd, u_long cmd, void *arg)
488 {
489 int ret;
490 cgc_t cgc;
491
492 switch (cmd)
493 {
494 case CDROMREADRAW:
495 case CDROMREADMODE1:
496 case CDROMREADMODE2:
497 {
498 struct cdrom_msf *msf;
499 int blocksize = 0, format = 0, lba;
500
501 switch (cmd)
502 {
503 case CDROMREADRAW:
504 blocksize = CD_FRAMESIZE_RAW;
505 break;
506 case CDROMREADMODE1:
507 blocksize = CD_FRAMESIZE;
508 format = 2;
509 break;
510 case CDROMREADMODE2:
511 blocksize = CD_FRAMESIZE_RAW0;
512 break;
513 }
514 msf = (struct cdrom_msf *)arg;
515 lba = msf_to_lba(msf->cdmsf_min0,msf->cdmsf_sec0,
516 msf->cdmsf_frame0);
517 ret = EINVAL;
518 if (lba < 0)
519 break;
520
521 cgc_init(&cgc, arg, blocksize, SUC_READ);
522 ret = cdrom_read_block(fd, &cgc, lba, 1, format, blocksize);
523 if (ret)
524 {
525 /*
526 * SCSI-II devices are not required to support CMD_READ_CD (which specifies
527 * the blocksize to read) so try switching the block size with a mode select,
528 * doing the normal read sector command and then changing the sector size back
529 * to 2048.
530 *
531 * If the program dies before changing the blocksize back sdopen()
532 * in the kernel will fail opens with a message that looks something like:
533 *
534 * "sr1: blksize 2336 not multiple of 512: cannot use"
535 *
536 * At that point the drive has to be power cycled (or reset in some other way).
537 */
538 if (ret = cdrom_blocksize(fd, blocksize))
539 break;
540 ret = cdrom_read_cd(fd, &cgc, lba, blocksize, 1);
541 ret |= cdrom_blocksize(fd, 2048);
542 }
543 break;
544 }
545 case CDROMREADTOCHDR:
546 {
547 struct cdrom_tochdr *tochdr = (struct cdrom_tochdr *) arg;
548 u_char buffer[12];
549
550 cgc_init(&cgc, buffer, sizeof (buffer), SUC_READ);
551 cgc.cdb[0] = CMD_READ_TOC_PMA_ATIP;
552 cgc.cdb[1] = 0x2; /* MSF */
553 cgc.cdb[8] = 12; /* LSB of length */
554
555 ret = scsi_cmd(fd, &cgc);
556 if (!ret)
557 {
558 tochdr->cdth_trk0 = buffer[2];
559 tochdr->cdth_trk1 = buffer[3];
560 }
561 break;
562 }
563 case CDROMREADTOCENTRY:
564 {
565 struct cdrom_tocentry *tocentry = (struct cdrom_tocentry *) arg;
566 u_char buffer[12];
567
568 cgc_init(&cgc, buffer, sizeof (buffer), SUC_READ);
569 cgc.cdb[0] = CMD_READ_TOC_PMA_ATIP;
570 cgc.cdb[1] = (tocentry->cdte_format == CDROM_MSF) ? 0x02 : 0;
571 cgc.cdb[6] = tocentry->cdte_track;
572 cgc.cdb[8] = 12; /* LSB of length */
573
574 ret = scsi_cmd(fd, &cgc);
575 if (ret)
576 break;
577
578 tocentry->cdte_ctrl = buffer[5] & 0xf;
579 tocentry->cdte_adr = buffer[5] >> 4;
580 tocentry->cdte_datamode = (tocentry->cdte_ctrl & 0x04) ? 1 : 0;
581 if (tocentry->cdte_format == CDROM_MSF)
582 {
583 tocentry->cdte_addr.msf.minute = buffer[9];
584 tocentry->cdte_addr.msf.second = buffer[10];
585 tocentry->cdte_addr.msf.frame = buffer[11];
586 }
587 else
588 tocentry->cdte_addr.lba = (((((buffer[8] << 8)
589 + buffer[9]) << 8)
590 + buffer[10]) << 8)
591 + buffer[11];
592 break;
593 }
594 case CDROMEJECT: /* NO-OP for now */
595 ret = cdrom_tray_move(fd, 1);
596 break;
597 case CDROMCLOSETRAY:
598 ret = cdrom_tray_move(fd, 0);
599 break;
600 /*
601 * This sucks but emulates the expected behaviour. Instead of the return
602 * value being the actual status a success/fail indicator should have been
603 * returned and the 3rd arg to the ioctl should have been an 'int *' to update
604 * with the actual status. Both the drive and disc status ioctl calls are
605 * similarily braindamaged.
606 */
607 case CDROM_DRIVE_STATUS:
608 return(CDS_NO_INFO); /* XXX */
609 case CDROM_DISC_STATUS:
610 {
611 tracktype tracks;
612 int cnt;
613
614 cdrom_count_tracks(fd, &tracks);
615 if (tracks.error)
616 return(tracks.error);
617 if (tracks.audio > 0)
618 {
619 cnt = tracks.data + tracks.cdi + tracks.xa;
620 if (cnt == 0)
621 return(CDS_AUDIO);
622 else
623 return(CDS_MIXED);
624 }
625 if (tracks.cdi)
626 return(CDS_XA_2_2);
627 if (tracks.xa)
628 return(CDS_XA_2_1);
629 if (tracks.data)
630 return(CDS_DATA_1);
631 return(CDS_NO_INFO);
632 }
633 }
634 errno = ret;
635 return(ret ? -1 : 0);
636 }
637
638 static int cdrom_read_cd(int fd, cgc_t *cgc, int lba, int blocksize, int nblocks)
639 {
640
641 memset(&cgc->cdb, 0, sizeof(cgc->cdb));
642 cgc->cdb[0] = CMD_READ_10;
643 cgc->cdb[2] = (lba >> 24) & 0xff;
644 cgc->cdb[3] = (lba >> 16) & 0xff;
645 cgc->cdb[4] = (lba >> 8) & 0xff;
646 cgc->cdb[5] = lba & 0xff;
647 cgc->cdb[6] = (nblocks >> 16) & 0xff;
648 cgc->cdb[7] = (nblocks >> 8) & 0xff;
649 cgc->cdb[8] = nblocks & 0xff;
650 cgc->buflen = blocksize * nblocks;
651 return(scsi_cmd(fd, cgc));
652 }
653
654 static int cdrom_read_block(int fd, cgc_t *cgc,
655 int lba, int nblocks, int format, int blksize)
656 {
657
658 memset(&cgc->cdb, 0, sizeof(cgc->cdb));
659 cgc->cdb[0] = CMD_READ_CD;
660 /* expected sector size - cdda,mode1,etc. */
661 cgc->cdb[1] = format << 2;
662 /* starting address */
663 cgc->cdb[2] = (lba >> 24) & 0xff;
664 cgc->cdb[3] = (lba >> 16) & 0xff;
665 cgc->cdb[4] = (lba >> 8) & 0xff;
666 cgc->cdb[5] = lba & 0xff;
667 /* number of blocks */
668 cgc->cdb[6] = (nblocks >> 16) & 0xff;
669 cgc->cdb[7] = (nblocks >> 8) & 0xff;
670 cgc->cdb[8] = nblocks & 0xff;
671 cgc->buflen = blksize * nblocks;
672
673 /* set the header info returned */
674 switch (blksize)
675 {
676 case CD_FRAMESIZE_RAW0:
677 cgc->cdb[9] = 0x58;
678 break;
679 case CD_FRAMESIZE_RAW1:
680 cgc->cdb[9] = 0x78;
681 break;
682 case CD_FRAMESIZE_RAW:
683 cgc->cdb[9] = 0xf8;
684 break;
685 default:
686 cgc->cdb[9] = 0x10;
687 }
688 return(scsi_cmd(fd, cgc));
689 }
690
691 static void cdrom_count_tracks(int fd, tracktype *tracks)
692 {
693 struct cdrom_tochdr header;
694 struct cdrom_tocentry entry;
695 int ret, i;
696
697 memset(tracks, 0, sizeof (*tracks));
698 ret = cdrom_ioctl(fd, CDROMREADTOCHDR, &header);
699 /*
700 * This whole business is a crock anyhow so we don't bother distinguishing
701 * between no media, drive not ready, etc and on any error just say we have
702 * no info.
703 */
704 if (ret)
705 {
706 tracks->error = CDS_NO_INFO;
707 return;
708 }
709
710 entry.cdte_format = CDROM_MSF;
711 for (i = header.cdth_trk0; i <= header.cdth_trk1; i++)
712 {
713 entry.cdte_track = i;
714 if (cdrom_ioctl(fd, CDROMREADTOCENTRY, &entry))
715 {
716 tracks->error = CDS_NO_INFO;
717 return;
718 }
719 if (entry.cdte_ctrl & CDROM_DATA_TRACK)
720 {
721 if (entry.cdte_format == 0x10)
722 tracks->cdi++;
723 else if (entry.cdte_format == 0x20)
724 tracks->xa++;
725 else
726 tracks->data++;
727 }
728 else
729 tracks->audio++;
730 }
731 return;
732 }
733
734 static int cdrom_tray_move(int fd, int flag)
735 {
736 cgc_t cgc;
737
738 cgc_init(&cgc, NULL, 0, SUC_READ);
739 cgc.cdb[0] = CMD_START_STOP_UNIT;
740 cgc.cdb[1] = 1; /* immediate */
741 cgc.cdb[4] = flag ? 0x2 : 0x3; /* eject : close */
742 return(scsi_cmd(fd, &cgc));
743 }
744
745 /*
746 * Required when we need to use READ_10 to issue other than 2048 block
747 * reads
748 */
749 int cdrom_blocksize(int fd, int size)
750 {
751 cgc_t cgc;
752 struct modesel_head mh;
753
754 memset(&mh, 0, sizeof(mh));
755 mh.block_desc_length = 0x08;
756 mh.block_length_med = (size >> 8) & 0xff;
757 mh.block_length_lo = size & 0xff;
758
759 memset(&cgc, 0, sizeof(cgc));
760 cgc.cdb[0] = 0x15;
761 cgc.cdb[1] = 1 << 4;
762 cgc.cdb[4] = 12;
763 cgc.buflen = sizeof(mh);
764 cgc.buf = (u_char *) &mh;
765 cgc.rw = SUC_WRITE;
766 mh.block_desc_length = 0x08;
767 mh.block_length_med = (size >> 8) & 0xff;
768 mh.block_length_lo = size & 0xff;
769 return(scsi_cmd(fd, &cgc));
770 }