| 1 | /* |
| 2 | * Written by Julian Elischer (julian@tfs.com) |
| 3 | * for TRW Financial Systems for use under the MACH(2.5) operating system. |
| 4 | * |
| 5 | * TRW Financial Systems, in accordance with their agreement with Carnegie |
| 6 | * Mellon University, makes this software available to CMU to distribute |
| 7 | * or use in any manner that they see fit as long as this message is kept with |
| 8 | * the software. For this reason TFS also grants any other persons or |
| 9 | * organisations permission to use or modify this software. |
| 10 | * |
| 11 | * TFS supplies this software to be publicly redistributed |
| 12 | * on the understanding that TFS is not responsible for the correct |
| 13 | * functioning of this software in any circumstances. |
| 14 | * |
| 15 | * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 |
| 16 | * |
| 17 | * $Id: cd.c,v 1.8 1993/09/09 07:18:52 rgrimes Exp $ |
| 18 | */ |
| 19 | |
| 20 | #define SPLCD splbio |
| 21 | #define ESUCCESS 0 |
| 22 | #include <cd.h> |
| 23 | #include <sys/types.h> |
| 24 | #include <sys/param.h> |
| 25 | #include <sys/dkbad.h> |
| 26 | #include <sys/systm.h> |
| 27 | #include <sys/conf.h> |
| 28 | #include <sys/file.h> |
| 29 | #include <sys/stat.h> |
| 30 | #include <sys/ioctl.h> |
| 31 | #include <sys/buf.h> |
| 32 | #include <sys/uio.h> |
| 33 | #include <sys/malloc.h> |
| 34 | #include <sys/cdio.h> |
| 35 | |
| 36 | #include <sys/errno.h> |
| 37 | #include <sys/disklabel.h> |
| 38 | #include <scsi/scsi_all.h> |
| 39 | #include <scsi/scsi_cd.h> |
| 40 | #include <scsi/scsi_disk.h> /* rw_big and start_stop come from there */ |
| 41 | #include <scsi/scsiconf.h> |
| 42 | |
| 43 | long int cdstrats,cdqueues; |
| 44 | |
| 45 | |
| 46 | #include <ddb.h> |
| 47 | #if NDDB > 0 |
| 48 | int Debugger(); |
| 49 | #else NDDB > 0 |
| 50 | #define Debugger() |
| 51 | #endif NDDB > 0 |
| 52 | |
| 53 | |
| 54 | #define PAGESIZ 4096 |
| 55 | #define SECSIZE 2048 /* XXX */ /* default only */ |
| 56 | #define CDOUTSTANDING 2 |
| 57 | #define CDQSIZE 4 |
| 58 | #define CD_RETRIES 4 |
| 59 | |
| 60 | #define UNITSHIFT 3 |
| 61 | #define PARTITION(z) (minor(z) & 0x07) |
| 62 | #define RAW_PART 3 |
| 63 | #define UNIT(z) ( (minor(z) >> UNITSHIFT) ) |
| 64 | |
| 65 | |
| 66 | extern int hz; |
| 67 | int cd_done(); |
| 68 | int cdstrategy(); |
| 69 | int cd_debug = 0; |
| 70 | |
| 71 | |
| 72 | struct cd_data |
| 73 | { |
| 74 | int flags; |
| 75 | #define CDVALID 0x02 /* PARAMS LOADED */ |
| 76 | #define CDINIT 0x04 /* device has been init'd */ |
| 77 | #define CDWAIT 0x08 /* device has someone waiting */ |
| 78 | #define CDHAVELABEL 0x10 /* have read the label */ |
| 79 | struct scsi_switch *sc_sw; /* address of scsi low level switch */ |
| 80 | int ctlr; /* so they know which one we want */ |
| 81 | int targ; /* our scsi target ID */ |
| 82 | int lu; /* out scsi lu */ |
| 83 | int cmdscount; /* cmds allowed outstanding by board*/ |
| 84 | struct cd_parms |
| 85 | { |
| 86 | int blksize; |
| 87 | u_long disksize; /* total number sectors */ |
| 88 | }params; |
| 89 | struct disklabel disklabel; |
| 90 | int partflags[MAXPARTITIONS]; /* per partition flags */ |
| 91 | #define CDOPEN 0x01 |
| 92 | int openparts; /* one bit for each open partition */ |
| 93 | int xfer_block_wait; |
| 94 | struct scsi_xfer *free_xfer; |
| 95 | struct scsi_xfer scsi_xfer[CDOUTSTANDING]; /* XXX */ |
| 96 | struct buf buf_queue; |
| 97 | }; |
| 98 | |
| 99 | #define CD_STOP 0 |
| 100 | #define CD_START 1 |
| 101 | #define CD_EJECT -2 |
| 102 | |
| 103 | struct cd_driver |
| 104 | { |
| 105 | int size; |
| 106 | struct cd_data **cd_data; |
| 107 | }*cd_driver; |
| 108 | |
| 109 | static int next_cd_unit = 0; |
| 110 | /***********************************************************************\ |
| 111 | * The routine called by the low level scsi routine when it discovers * |
| 112 | * A device suitable for this driver * |
| 113 | \***********************************************************************/ |
| 114 | int cdattach(ctlr,targ,lu,scsi_switch) |
| 115 | struct scsi_switch *scsi_switch; |
| 116 | { |
| 117 | int unit,i; |
| 118 | unsigned char *tbl; |
| 119 | struct cd_data *cd, **cdrealloc; |
| 120 | struct cd_parms *dp; |
| 121 | |
| 122 | #ifdef CDDEBUG |
| 123 | if(scsi_debug & PRINTROUTINES) printf("cdattach: "); |
| 124 | #endif /*CDDEBUG*/ |
| 125 | /*******************************************************\ |
| 126 | * Check if we have resources allocated yet, if not * |
| 127 | * allocate and initialize them * |
| 128 | \*******************************************************/ |
| 129 | if (next_cd_unit == 0) |
| 130 | { |
| 131 | cd_driver = |
| 132 | malloc(sizeof(struct cd_driver),M_DEVBUF,M_NOWAIT); |
| 133 | if(!cd_driver) |
| 134 | { |
| 135 | printf("cd%d: malloc failed for cd_driver\n",unit); |
| 136 | return(0); |
| 137 | } |
| 138 | bzero(cd_driver,sizeof(cd_driver)); |
| 139 | cd_driver->size = 0; |
| 140 | } |
| 141 | /*******************************************************\ |
| 142 | * allocate the resources for another drive * |
| 143 | * if we have already allocate a cd_data pointer we must * |
| 144 | * copy the old pointers into a new region that is * |
| 145 | * larger and release the old region, aka realloc * |
| 146 | \*******************************************************/ |
| 147 | unit = next_cd_unit++; |
| 148 | /* XXX |
| 149 | * This if will always be true for now, but future code may |
| 150 | * preallocate more units to reduce overhead. This would be |
| 151 | * done by changing the malloc to be (next_cd_unit * x) and |
| 152 | * the cd_driver->size++ to be +x |
| 153 | */ |
| 154 | if(unit >= cd_driver->size) |
| 155 | { |
| 156 | cdrealloc = |
| 157 | malloc(sizeof(cd_driver->cd_data) * next_cd_unit, |
| 158 | M_DEVBUF,M_NOWAIT); |
| 159 | if(!cdrealloc) |
| 160 | { |
| 161 | printf("cd%d: malloc failed for cdrealloc\n",unit); |
| 162 | return(0); |
| 163 | } |
| 164 | /* Make sure we have something to copy before we copy it */ |
| 165 | bzero(cdrealloc,sizeof(cd_driver->cd_data) * next_cd_unit); |
| 166 | if(cd_driver->size) |
| 167 | { |
| 168 | bcopy(cd_driver->cd_data,cdrealloc, |
| 169 | sizeof(cd_driver->cd_data) * cd_driver->size); |
| 170 | free(cd_driver->cd_data,M_DEVBUF); |
| 171 | } |
| 172 | cd_driver->cd_data = cdrealloc; |
| 173 | cd_driver->cd_data[unit] = NULL; |
| 174 | cd_driver->size++; |
| 175 | } |
| 176 | if(cd_driver->cd_data[unit]) |
| 177 | { |
| 178 | printf("cd%d: Already has storage!\n",unit); |
| 179 | return(0); |
| 180 | } |
| 181 | /*******************************************************\ |
| 182 | * allocate the per drive data area * |
| 183 | \*******************************************************/ |
| 184 | cd = cd_driver->cd_data[unit] = |
| 185 | malloc(sizeof(struct cd_data),M_DEVBUF,M_NOWAIT); |
| 186 | if(!cd) |
| 187 | { |
| 188 | printf("cd%d: malloc failed for cd_data\n",unit); |
| 189 | return(0); |
| 190 | } |
| 191 | bzero(cd,sizeof(struct cd_data)); |
| 192 | dp = &(cd->params); |
| 193 | /*******************************************************\ |
| 194 | * Store information needed to contact our base driver * |
| 195 | \*******************************************************/ |
| 196 | cd->sc_sw = scsi_switch; |
| 197 | cd->ctlr = ctlr; |
| 198 | cd->targ = targ; |
| 199 | cd->lu = lu; |
| 200 | cd->cmdscount = CDOUTSTANDING; /* XXX (ask the board) */ |
| 201 | |
| 202 | i = cd->cmdscount; |
| 203 | while(i-- ) |
| 204 | { |
| 205 | cd->scsi_xfer[i].next = cd->free_xfer; |
| 206 | cd->free_xfer = &cd->scsi_xfer[i]; |
| 207 | } |
| 208 | /*******************************************************\ |
| 209 | * Use the subdriver to request information regarding * |
| 210 | * the drive. We cannot use interrupts yet, so the * |
| 211 | * request must specify this. * |
| 212 | \*******************************************************/ |
| 213 | cd_get_parms(unit, SCSI_NOSLEEP | SCSI_NOMASK); |
| 214 | if(dp->disksize) |
| 215 | { |
| 216 | printf("cd%d: cd present\n", unit); |
| 217 | } |
| 218 | else |
| 219 | { |
| 220 | printf("cd%d: drive empty\n", unit); |
| 221 | } |
| 222 | cd->flags |= CDINIT; |
| 223 | return; |
| 224 | } |
| 225 | |
| 226 | /*******************************************************\ |
| 227 | * open the device. Make sure the partition info * |
| 228 | * is a up-to-date as can be. * |
| 229 | \*******************************************************/ |
| 230 | cdopen(dev) |
| 231 | { |
| 232 | int errcode = 0; |
| 233 | int unit, part; |
| 234 | struct cd_parms cd_parms; |
| 235 | struct cd_data *cd; |
| 236 | |
| 237 | unit = UNIT(dev); |
| 238 | part = PARTITION(dev); |
| 239 | |
| 240 | #ifdef CDDEBUG |
| 241 | if(scsi_debug & (PRINTROUTINES | TRACEOPENS)) |
| 242 | printf("cdopen: dev=0x%x (unit %d (of %d),partition %d)\n" |
| 243 | ,dev,unit,cd_driver->size,part); |
| 244 | #endif /*CDDEBUG*/ |
| 245 | /*******************************************************\ |
| 246 | * Check the unit is legal * |
| 247 | \*******************************************************/ |
| 248 | if ( unit >= cd_driver->size ) |
| 249 | { |
| 250 | return(ENXIO); |
| 251 | } |
| 252 | cd = cd_driver->cd_data[unit]; |
| 253 | /*******************************************************\ |
| 254 | * Make sure the device has been initialised * |
| 255 | \*******************************************************/ |
| 256 | if ((cd == NULL) || (!(cd->flags & CDINIT))) |
| 257 | return(ENXIO); |
| 258 | |
| 259 | /*******************************************************\ |
| 260 | * If it's been invalidated, and not everybody has * |
| 261 | * closed it then forbid re-entry. * |
| 262 | * (may have changed media) * |
| 263 | \*******************************************************/ |
| 264 | if ((! (cd->flags & CDVALID)) |
| 265 | && ( cd->openparts)) |
| 266 | return(ENXIO); |
| 267 | /*******************************************************\ |
| 268 | * Check that it is still responding and ok. * |
| 269 | * if the media has been changed this will result in a * |
| 270 | * "unit attention" error which the error code will * |
| 271 | * disregard because the CDVALID flag is not yet set * |
| 272 | \*******************************************************/ |
| 273 | if (cd_req_sense(unit, SCSI_SILENT) != 0) { |
| 274 | #ifdef CDDEBUG |
| 275 | if(scsi_debug & TRACEOPENS) |
| 276 | printf("not reponding\n"); |
| 277 | #endif /*CDDEBUG*/ |
| 278 | return(ENXIO); |
| 279 | } |
| 280 | #ifdef CDDEBUG |
| 281 | if(scsi_debug & TRACEOPENS) |
| 282 | printf("Device present\n"); |
| 283 | #endif /*CDDEBUG*/ |
| 284 | /*******************************************************\ |
| 285 | * In case it is a funny one, tell it to start * |
| 286 | * not needed for hard drives * |
| 287 | \*******************************************************/ |
| 288 | cd_start_unit(unit,part,CD_START); |
| 289 | cd_prevent_unit(unit,PR_PREVENT,SCSI_SILENT); |
| 290 | #ifdef CDDEBUG |
| 291 | if(scsi_debug & TRACEOPENS) |
| 292 | printf("started "); |
| 293 | #endif /*CDDEBUG*/ |
| 294 | /*******************************************************\ |
| 295 | * Load the physical device parameters * |
| 296 | \*******************************************************/ |
| 297 | cd_get_parms(unit, 0); |
| 298 | #ifdef CDDEBUG |
| 299 | if(scsi_debug & TRACEOPENS) |
| 300 | printf("Params loaded "); |
| 301 | #endif /*CDDEBUG*/ |
| 302 | /*******************************************************\ |
| 303 | * Load the partition info if not already loaded * |
| 304 | \*******************************************************/ |
| 305 | cdgetdisklabel(unit); |
| 306 | #ifdef CDDEBUG |
| 307 | if(scsi_debug & TRACEOPENS) |
| 308 | printf("Disklabel fabricated "); |
| 309 | #endif /*CDDEBUG*/ |
| 310 | /*******************************************************\ |
| 311 | * Check the partition is legal * |
| 312 | \*******************************************************/ |
| 313 | if (( part >= cd->disklabel.d_npartitions ) |
| 314 | && (part != RAW_PART)) |
| 315 | { |
| 316 | #ifdef CDDEBUG |
| 317 | if(scsi_debug & TRACEOPENS) |
| 318 | printf("partition %d > %d\n",part |
| 319 | ,cd->disklabel.d_npartitions); |
| 320 | #endif /*CDDEBUG*/ |
| 321 | cd_prevent_unit(unit,PR_ALLOW,SCSI_SILENT); |
| 322 | return(ENXIO); |
| 323 | } |
| 324 | /*******************************************************\ |
| 325 | * Check that the partition exists * |
| 326 | \*******************************************************/ |
| 327 | if (( cd->disklabel.d_partitions[part].p_fstype != FS_UNUSED ) |
| 328 | || (part == RAW_PART)) |
| 329 | { |
| 330 | cd->partflags[part] |= CDOPEN; |
| 331 | cd->openparts |= (1 << part); |
| 332 | #ifdef CDDEBUG |
| 333 | if(scsi_debug & TRACEOPENS) |
| 334 | printf("open complete\n"); |
| 335 | #endif /*CDDEBUG*/ |
| 336 | cd->flags |= CDVALID; |
| 337 | } |
| 338 | else |
| 339 | { |
| 340 | #ifdef CDDEBUG |
| 341 | if(scsi_debug & TRACEOPENS) |
| 342 | printf("part %d type UNUSED\n",part); |
| 343 | #endif /*CDDEBUG*/ |
| 344 | cd_prevent_unit(unit,PR_ALLOW,SCSI_SILENT); |
| 345 | return(ENXIO); |
| 346 | } |
| 347 | return(0); |
| 348 | } |
| 349 | |
| 350 | /*******************************************************\ |
| 351 | * Get ownership of a scsi_xfer structure * |
| 352 | * If need be, sleep on it, until it comes free * |
| 353 | \*******************************************************/ |
| 354 | struct scsi_xfer *cd_get_xs(unit,flags) |
| 355 | int flags; |
| 356 | int unit; |
| 357 | { |
| 358 | struct scsi_xfer *xs; |
| 359 | struct cd_data *cd; |
| 360 | int s; |
| 361 | |
| 362 | cd = cd_driver->cd_data[unit]; |
| 363 | if(flags & (SCSI_NOSLEEP | SCSI_NOMASK)) |
| 364 | { |
| 365 | if (xs = cd->free_xfer) |
| 366 | { |
| 367 | cd->free_xfer = xs->next; |
| 368 | xs->flags = 0; |
| 369 | } |
| 370 | } |
| 371 | else |
| 372 | { |
| 373 | s = SPLCD(); |
| 374 | while (!(xs = cd->free_xfer)) |
| 375 | { |
| 376 | cd->xfer_block_wait++; /* someone waiting! */ |
| 377 | sleep((caddr_t)&cd->free_xfer, PRIBIO+1); |
| 378 | cd->xfer_block_wait--; |
| 379 | } |
| 380 | cd->free_xfer = xs->next; |
| 381 | splx(s); |
| 382 | xs->flags = 0; |
| 383 | } |
| 384 | return(xs); |
| 385 | } |
| 386 | |
| 387 | /*******************************************************\ |
| 388 | * Free a scsi_xfer, wake processes waiting for it * |
| 389 | \*******************************************************/ |
| 390 | cd_free_xs(unit,xs,flags) |
| 391 | struct scsi_xfer *xs; |
| 392 | int unit; |
| 393 | int flags; |
| 394 | { |
| 395 | struct cd_data *cd; |
| 396 | int s; |
| 397 | |
| 398 | cd = cd_driver->cd_data[unit]; |
| 399 | if(flags & SCSI_NOMASK) |
| 400 | { |
| 401 | if (cd->xfer_block_wait) |
| 402 | { |
| 403 | printf("cd%d: doing a wakeup from NOMASK mode\n", unit); |
| 404 | wakeup((caddr_t)&cd->free_xfer); |
| 405 | } |
| 406 | xs->next = cd->free_xfer; |
| 407 | cd->free_xfer = xs; |
| 408 | } |
| 409 | else |
| 410 | { |
| 411 | s = SPLCD(); |
| 412 | if (cd->xfer_block_wait) |
| 413 | wakeup((caddr_t)&cd->free_xfer); |
| 414 | xs->next = cd->free_xfer; |
| 415 | cd->free_xfer = xs; |
| 416 | splx(s); |
| 417 | } |
| 418 | } |
| 419 | |
| 420 | /*******************************************************\ |
| 421 | * trim the size of the transfer if needed, * |
| 422 | * called by physio * |
| 423 | * basically the smaller of our max and the scsi driver's* |
| 424 | * minphys (note we have no max ourselves) * |
| 425 | \*******************************************************/ |
| 426 | /* Trim buffer length if buffer-size is bigger than page size */ |
| 427 | void cdminphys(bp) |
| 428 | struct buf *bp; |
| 429 | { |
| 430 | (*(cd_driver->cd_data[UNIT(bp->b_dev)]->sc_sw->scsi_minphys))(bp); |
| 431 | } |
| 432 | |
| 433 | /*******************************************************\ |
| 434 | * Actually translate the requested transfer into * |
| 435 | * one the physical driver can understand * |
| 436 | * The transfer is described by a buf and will include * |
| 437 | * only one physical transfer. * |
| 438 | \*******************************************************/ |
| 439 | |
| 440 | int cdstrategy(bp) |
| 441 | struct buf *bp; |
| 442 | { |
| 443 | struct buf *dp; |
| 444 | unsigned int opri; |
| 445 | struct cd_data *cd; |
| 446 | int unit; |
| 447 | |
| 448 | cdstrats++; |
| 449 | unit = UNIT((bp->b_dev)); |
| 450 | cd = cd_driver->cd_data[unit]; |
| 451 | #ifdef CDDEBUG |
| 452 | if(scsi_debug & PRINTROUTINES) printf("\ncdstrategy "); |
| 453 | if(scsi_debug & SHOWREQUESTS) printf("cd%d: %d bytes @ blk%d\n", |
| 454 | unit,bp->b_bcount,bp->b_blkno); |
| 455 | #endif /*CDDEBUG*/ |
| 456 | cdminphys(bp); |
| 457 | /*******************************************************\ |
| 458 | * If the device has been made invalid, error out * |
| 459 | * maybe the media changed * |
| 460 | \*******************************************************/ |
| 461 | if(!(cd->flags & CDVALID)) |
| 462 | { |
| 463 | bp->b_error = EIO; |
| 464 | goto bad; |
| 465 | } |
| 466 | /*******************************************************\ |
| 467 | * can't ever write to a CD * |
| 468 | \*******************************************************/ |
| 469 | if ((bp->b_flags & B_READ) == 0) { |
| 470 | bp->b_error = EROFS; |
| 471 | goto bad; |
| 472 | } |
| 473 | /*******************************************************\ |
| 474 | * If it's a null transfer, return immediatly * |
| 475 | \*******************************************************/ |
| 476 | if (bp->b_bcount == 0) { |
| 477 | goto done; |
| 478 | } |
| 479 | |
| 480 | /*******************************************************\ |
| 481 | * Decide which unit and partition we are talking about * |
| 482 | \*******************************************************/ |
| 483 | if(PARTITION(bp->b_dev) != RAW_PART) |
| 484 | { |
| 485 | if (!(cd->flags & CDHAVELABEL)) |
| 486 | { |
| 487 | bp->b_error = EIO; |
| 488 | goto bad; |
| 489 | } |
| 490 | /* |
| 491 | * do bounds checking, adjust transfer. if error, process. |
| 492 | * if end of partition, just return |
| 493 | */ |
| 494 | if (bounds_check_with_label(bp,&cd->disklabel,1) <= 0) |
| 495 | goto done; |
| 496 | /* otherwise, process transfer request */ |
| 497 | } |
| 498 | |
| 499 | opri = SPLCD(); |
| 500 | dp = &cd->buf_queue; |
| 501 | |
| 502 | /*******************************************************\ |
| 503 | * Place it in the queue of disk activities for this disk* |
| 504 | \*******************************************************/ |
| 505 | disksort(dp, bp); |
| 506 | |
| 507 | /*******************************************************\ |
| 508 | * Tell the device to get going on the transfer if it's * |
| 509 | * not doing anything, otherwise just wait for completion* |
| 510 | \*******************************************************/ |
| 511 | cdstart(unit); |
| 512 | |
| 513 | splx(opri); |
| 514 | return; |
| 515 | bad: |
| 516 | bp->b_flags |= B_ERROR; |
| 517 | done: |
| 518 | |
| 519 | /*******************************************************\ |
| 520 | * Correctly set the buf to indicate a completed xfer * |
| 521 | \*******************************************************/ |
| 522 | bp->b_resid = bp->b_bcount; |
| 523 | biodone(bp); |
| 524 | return; |
| 525 | } |
| 526 | |
| 527 | /***************************************************************\ |
| 528 | * cdstart looks to see if there is a buf waiting for the device * |
| 529 | * and that the device is not already busy. If both are true, * |
| 530 | * It deques the buf and creates a scsi command to perform the * |
| 531 | * transfer in the buf. The transfer request will call cd_done * |
| 532 | * on completion, which will in turn call this routine again * |
| 533 | * so that the next queued transfer is performed. * |
| 534 | * The bufs are queued by the strategy routine (cdstrategy) * |
| 535 | * * |
| 536 | * This routine is also called after other non-queued requests * |
| 537 | * have been made of the scsi driver, to ensure that the queue * |
| 538 | * continues to be drained. * |
| 539 | * * |
| 540 | * must be called at the correct (highish) spl level * |
| 541 | \***************************************************************/ |
| 542 | /* cdstart() is called at SPLCD from cdstrategy and cd_done*/ |
| 543 | cdstart(unit) |
| 544 | int unit; |
| 545 | { |
| 546 | register struct buf *bp = 0; |
| 547 | register struct buf *dp; |
| 548 | struct scsi_xfer *xs; |
| 549 | struct scsi_rw_big cmd; |
| 550 | int blkno, nblk; |
| 551 | struct cd_data *cd; |
| 552 | struct partition *p ; |
| 553 | |
| 554 | #ifdef CDDEBUG |
| 555 | if(scsi_debug & PRINTROUTINES) printf("cdstart%d ",unit); |
| 556 | #endif /*CDDEBUG*/ |
| 557 | cd = cd_driver->cd_data[unit]; |
| 558 | /*******************************************************\ |
| 559 | * See if there is a buf to do and we are not already * |
| 560 | * doing one * |
| 561 | \*******************************************************/ |
| 562 | if(!cd->free_xfer) |
| 563 | { |
| 564 | return; /* none for us, unit already underway */ |
| 565 | } |
| 566 | |
| 567 | if(cd->xfer_block_wait) /* there is one, but a special waits */ |
| 568 | { |
| 569 | return; /* give the special that's waiting a chance to run */ |
| 570 | } |
| 571 | |
| 572 | |
| 573 | dp = &cd->buf_queue; |
| 574 | if ((bp = dp->b_actf) != NULL) /* yes, an assign */ |
| 575 | { |
| 576 | dp->b_actf = bp->av_forw; |
| 577 | } |
| 578 | else |
| 579 | { |
| 580 | return; |
| 581 | } |
| 582 | |
| 583 | xs=cd_get_xs(unit,0); /* ok we can grab it */ |
| 584 | xs->flags = INUSE; /* Now ours */ |
| 585 | /***************************************************************\ |
| 586 | * Should reject all queued entries if CDVALID is not true * |
| 587 | \***************************************************************/ |
| 588 | if(!(cd->flags & CDVALID)) |
| 589 | { |
| 590 | goto bad; /* no I/O.. media changed or something */ |
| 591 | } |
| 592 | |
| 593 | /*******************************************************\ |
| 594 | * We have a buf, now we should move the data into * |
| 595 | * a scsi_xfer definition and try start it * |
| 596 | \*******************************************************/ |
| 597 | /*******************************************************\ |
| 598 | * First, translate the block to absolute * |
| 599 | * and put it in terms of the logical blocksize of the * |
| 600 | * device.. * |
| 601 | \*******************************************************/ |
| 602 | p = cd->disklabel.d_partitions + PARTITION(bp->b_dev); |
| 603 | blkno = ((bp->b_blkno / (cd->params.blksize/512)) + p->p_offset); |
| 604 | nblk = (bp->b_bcount + (cd->params.blksize - 1)) / (cd->params.blksize); |
| 605 | |
| 606 | /*******************************************************\ |
| 607 | * Fill out the scsi command * |
| 608 | \*******************************************************/ |
| 609 | bzero(&cmd, sizeof(cmd)); |
| 610 | cmd.op_code = READ_BIG; |
| 611 | cmd.addr_3 = (blkno & 0xff000000) >> 24; |
| 612 | cmd.addr_2 = (blkno & 0xff0000) >> 16; |
| 613 | cmd.addr_1 = (blkno & 0xff00) >> 8; |
| 614 | cmd.addr_0 = blkno & 0xff; |
| 615 | cmd.length2 = (nblk & 0xff00) >> 8; |
| 616 | cmd.length1 = (nblk & 0xff); |
| 617 | /*******************************************************\ |
| 618 | * Fill out the scsi_xfer structure * |
| 619 | * Note: we cannot sleep as we may be an interrupt * |
| 620 | \*******************************************************/ |
| 621 | xs->flags |= SCSI_NOSLEEP; |
| 622 | xs->adapter = cd->ctlr; |
| 623 | xs->targ = cd->targ; |
| 624 | xs->lu = cd->lu; |
| 625 | xs->retries = CD_RETRIES; |
| 626 | xs->timeout = 10000;/* 10000 millisecs for a disk !*/ |
| 627 | xs->cmd = (struct scsi_generic *)&cmd; |
| 628 | xs->cmdlen = sizeof(cmd); |
| 629 | xs->resid = bp->b_bcount; |
| 630 | xs->when_done = cd_done; |
| 631 | xs->done_arg = unit; |
| 632 | xs->done_arg2 = (int)xs; |
| 633 | xs->error = XS_NOERROR; |
| 634 | xs->bp = bp; |
| 635 | xs->data = (u_char *)bp->b_un.b_addr; |
| 636 | xs->datalen = bp->b_bcount; |
| 637 | |
| 638 | /*******************************************************\ |
| 639 | * Pass all this info to the scsi driver. * |
| 640 | \*******************************************************/ |
| 641 | if ( (*(cd->sc_sw->scsi_cmd))(xs) != SUCCESSFULLY_QUEUED) |
| 642 | { |
| 643 | printf("cd%d: oops not queued",unit); |
| 644 | goto bad; |
| 645 | } |
| 646 | cdqueues++; |
| 647 | return; |
| 648 | bad: xs->error = XS_DRIVER_STUFFUP; |
| 649 | cd_done(unit,xs); |
| 650 | } |
| 651 | |
| 652 | /*******************************************************\ |
| 653 | * This routine is called by the scsi interrupt when * |
| 654 | * the transfer is complete. (or failed) * |
| 655 | \*******************************************************/ |
| 656 | int cd_done(unit,xs) |
| 657 | int unit; |
| 658 | struct scsi_xfer *xs; |
| 659 | { |
| 660 | struct buf *bp; |
| 661 | int retval; |
| 662 | struct cd_data *cd; |
| 663 | |
| 664 | #ifdef CDDEBUG |
| 665 | if(scsi_debug & PRINTROUTINES) printf("cd_done%d ",unit); |
| 666 | #endif /*CDDEBUG*/ |
| 667 | cd = cd_driver->cd_data[unit]; |
| 668 | if (! (xs->flags & INUSE)) /* paranoia always pays off */ |
| 669 | panic("scsi_xfer not in use!"); |
| 670 | if(bp = xs->bp) |
| 671 | { |
| 672 | switch(xs->error) |
| 673 | { |
| 674 | case XS_NOERROR: |
| 675 | bp->b_error = 0; |
| 676 | bp->b_resid = 0; |
| 677 | break; |
| 678 | |
| 679 | case XS_SENSE: |
| 680 | retval = (cd_interpret_sense(unit,xs)); |
| 681 | if(retval) |
| 682 | { |
| 683 | bp->b_flags |= B_ERROR; |
| 684 | bp->b_error = retval; |
| 685 | } |
| 686 | break; |
| 687 | |
| 688 | case XS_TIMEOUT: |
| 689 | printf("cd%d timeout\n",unit); |
| 690 | |
| 691 | case XS_BUSY: |
| 692 | /***********************************\ |
| 693 | * Just resubmit it straight back to * |
| 694 | * the SCSI driver to try it again * |
| 695 | \***********************************/ |
| 696 | if(xs->retries--) |
| 697 | { |
| 698 | xs->error = XS_NOERROR; |
| 699 | xs->flags &= ~ITSDONE; |
| 700 | if ((*(cd->sc_sw->scsi_cmd))(xs) |
| 701 | == SUCCESSFULLY_QUEUED) |
| 702 | { /* shhh! don't wake the job, ok? */ |
| 703 | /* don't tell cdstart either, */ |
| 704 | return; |
| 705 | } |
| 706 | /* xs->error is set by the scsi driver */ |
| 707 | } /* Fall through */ |
| 708 | |
| 709 | case XS_DRIVER_STUFFUP: |
| 710 | bp->b_flags |= B_ERROR; |
| 711 | bp->b_error = EIO; |
| 712 | break; |
| 713 | default: |
| 714 | printf("cd%d: unknown error category from scsi driver\n" |
| 715 | ,unit); |
| 716 | } |
| 717 | biodone(bp); |
| 718 | cd_free_xs(unit,xs,0); |
| 719 | cdstart(unit); /* If there's anything waiting.. do it */ |
| 720 | } |
| 721 | else /* special has finished */ |
| 722 | { |
| 723 | wakeup(xs); |
| 724 | } |
| 725 | } |
| 726 | /*******************************************************\ |
| 727 | * Perform special action on behalf of the user * |
| 728 | * Knows about the internals of this device * |
| 729 | \*******************************************************/ |
| 730 | cdioctl(dev_t dev, int cmd, caddr_t addr, int flag) |
| 731 | { |
| 732 | int error = 0; |
| 733 | unsigned int opri; |
| 734 | unsigned char unit, part; |
| 735 | register struct cd_data *cd; |
| 736 | |
| 737 | |
| 738 | /*******************************************************\ |
| 739 | * Find the device that the user is talking about * |
| 740 | \*******************************************************/ |
| 741 | unit = UNIT(dev); |
| 742 | part = PARTITION(dev); |
| 743 | cd = cd_driver->cd_data[unit]; |
| 744 | #ifdef CDDEBUG |
| 745 | if(scsi_debug & PRINTROUTINES) printf("cdioctl%d ",unit); |
| 746 | #endif /*CDDEBUG*/ |
| 747 | |
| 748 | /*******************************************************\ |
| 749 | * If the device is not valid.. abandon ship * |
| 750 | \*******************************************************/ |
| 751 | if (!(cd_driver->cd_data[unit]->flags & CDVALID)) |
| 752 | return(EIO); |
| 753 | switch(cmd) |
| 754 | { |
| 755 | |
| 756 | case DIOCSBAD: |
| 757 | error = EINVAL; |
| 758 | break; |
| 759 | |
| 760 | case DIOCGDINFO: |
| 761 | *(struct disklabel *)addr = cd->disklabel; |
| 762 | break; |
| 763 | |
| 764 | case DIOCGPART: |
| 765 | ((struct partinfo *)addr)->disklab = &cd->disklabel; |
| 766 | ((struct partinfo *)addr)->part = |
| 767 | &cd->disklabel.d_partitions[PARTITION(dev)]; |
| 768 | break; |
| 769 | |
| 770 | case DIOCWDINFO: |
| 771 | case DIOCSDINFO: |
| 772 | if ((flag & FWRITE) == 0) |
| 773 | error = EBADF; |
| 774 | else |
| 775 | error = setdisklabel(&cd->disklabel, |
| 776 | (struct disklabel *)addr, |
| 777 | /*(cd->flags & DKFL_BSDLABEL) ? cd->openparts : */0, |
| 778 | 0); |
| 779 | if (error == 0) { |
| 780 | cd->flags |= CDHAVELABEL; |
| 781 | } |
| 782 | break; |
| 783 | |
| 784 | case DIOCWLABEL: |
| 785 | error = EBADF; |
| 786 | break; |
| 787 | |
| 788 | case CDIOCPLAYTRACKS: |
| 789 | { |
| 790 | struct ioc_play_track *args |
| 791 | = (struct ioc_play_track *)addr; |
| 792 | struct cd_mode_data data; |
| 793 | if(error = cd_get_mode(unit,&data,AUDIO_PAGE)) |
| 794 | break; |
| 795 | data.page.audio.flags &= ~CD_PA_SOTC; |
| 796 | data.page.audio.flags |= CD_PA_IMMED; |
| 797 | if(error = cd_set_mode(unit,&data)) |
| 798 | break; |
| 799 | return(cd_play_tracks(unit |
| 800 | ,args->start_track |
| 801 | ,args->start_index |
| 802 | ,args->end_track |
| 803 | ,args->end_index |
| 804 | )); |
| 805 | } |
| 806 | break; |
| 807 | case CDIOCPLAYMSF: |
| 808 | { |
| 809 | struct ioc_play_msf *args |
| 810 | = (struct ioc_play_msf *)addr; |
| 811 | struct cd_mode_data data; |
| 812 | if(error = cd_get_mode(unit,&data,AUDIO_PAGE)) |
| 813 | break; |
| 814 | data.page.audio.flags &= ~CD_PA_SOTC; |
| 815 | data.page.audio.flags |= CD_PA_IMMED; |
| 816 | if(error = cd_set_mode(unit,&data)) |
| 817 | break; |
| 818 | return(cd_play_msf(unit |
| 819 | ,args->start_m |
| 820 | ,args->start_s |
| 821 | ,args->start_f |
| 822 | ,args->end_m |
| 823 | ,args->end_s |
| 824 | ,args->end_f |
| 825 | )); |
| 826 | } |
| 827 | break; |
| 828 | case CDIOCPLAYBLOCKS: |
| 829 | { |
| 830 | struct ioc_play_blocks *args |
| 831 | = (struct ioc_play_blocks *)addr; |
| 832 | struct cd_mode_data data; |
| 833 | if(error = cd_get_mode(unit,&data,AUDIO_PAGE)) |
| 834 | break; |
| 835 | data.page.audio.flags &= ~CD_PA_SOTC; |
| 836 | data.page.audio.flags |= CD_PA_IMMED; |
| 837 | if(error = cd_set_mode(unit,&data)) |
| 838 | break; |
| 839 | return(cd_play(unit,args->blk,args->len)); |
| 840 | |
| 841 | |
| 842 | } |
| 843 | break; |
| 844 | case CDIOCREADSUBCHANNEL: |
| 845 | { |
| 846 | struct ioc_read_subchannel *args |
| 847 | = (struct ioc_read_subchannel *)addr; |
| 848 | struct cd_sub_channel_info data; |
| 849 | int len=args->data_len; |
| 850 | if(len>sizeof(data)|| |
| 851 | len<sizeof(struct cd_sub_channel_header)) { |
| 852 | error=EINVAL; |
| 853 | break; |
| 854 | } |
| 855 | if(error = cd_read_subchannel(unit,args->address_format, |
| 856 | args->data_format,args->track,&data,len)) { |
| 857 | break; |
| 858 | } |
| 859 | len=MIN(len,((data.header.data_len[0]<<8)+data.header.data_len[1]+ |
| 860 | sizeof(struct cd_sub_channel_header))); |
| 861 | if(copyout(&data,args->data,len)!=0) { |
| 862 | error=EFAULT; |
| 863 | } |
| 864 | } |
| 865 | break; |
| 866 | case CDIOREADTOCHEADER: |
| 867 | { |
| 868 | struct ioc_toc_header th; |
| 869 | if( error = cd_read_toc(unit,0,0,&th,sizeof(th))) |
| 870 | break; |
| 871 | th.len=(th.len&0xff)<<8+((th.len>>8)&0xff); |
| 872 | bcopy(&th,addr,sizeof(th)); |
| 873 | } |
| 874 | break; |
| 875 | case CDIOREADTOCENTRYS: |
| 876 | { |
| 877 | struct ioc_read_toc_entry *te= |
| 878 | (struct ioc_read_toc_entry *)addr; |
| 879 | struct cd_toc_entry data[65]; |
| 880 | struct ioc_toc_header *th; |
| 881 | int len=te->data_len; |
| 882 | th=(struct ioc_toc_header *)data; |
| 883 | |
| 884 | if(len>sizeof(data) || len<sizeof(struct cd_toc_entry)) { |
| 885 | error=EINVAL; |
| 886 | break; |
| 887 | } |
| 888 | if(error = cd_read_toc(unit,te->address_format, |
| 889 | te->starting_track, |
| 890 | data, |
| 891 | len)) |
| 892 | break; |
| 893 | len=MIN(len,((((th->len&0xff)<<8)+((th->len>>8)))+ |
| 894 | sizeof(*th))); |
| 895 | if(copyout(th,te->data,len)!=0) { |
| 896 | error=EFAULT; |
| 897 | } |
| 898 | |
| 899 | } |
| 900 | break; |
| 901 | case CDIOCSETPATCH: |
| 902 | { |
| 903 | struct ioc_patch *arg = (struct ioc_patch *)addr; |
| 904 | struct cd_mode_data data; |
| 905 | if(error = cd_get_mode(unit,&data,AUDIO_PAGE)) |
| 906 | break; |
| 907 | data.page.audio.port[LEFT_PORT].channels = arg->patch[0]; |
| 908 | data.page.audio.port[RIGHT_PORT].channels = arg->patch[1]; |
| 909 | data.page.audio.port[2].channels = arg->patch[2]; |
| 910 | data.page.audio.port[3].channels = arg->patch[3]; |
| 911 | if(error = cd_set_mode(unit,&data)) |
| 912 | break; |
| 913 | } |
| 914 | break; |
| 915 | case CDIOCGETVOL: |
| 916 | { |
| 917 | struct ioc_vol *arg = (struct ioc_vol *)addr; |
| 918 | struct cd_mode_data data; |
| 919 | if(error = cd_get_mode(unit,&data,AUDIO_PAGE)) |
| 920 | break; |
| 921 | arg->vol[LEFT_PORT] = data.page.audio.port[LEFT_PORT].volume; |
| 922 | arg->vol[RIGHT_PORT] = data.page.audio.port[RIGHT_PORT].volume; |
| 923 | arg->vol[2] = data.page.audio.port[2].volume; |
| 924 | arg->vol[3] = data.page.audio.port[3].volume; |
| 925 | } |
| 926 | break; |
| 927 | case CDIOCSETVOL: |
| 928 | { |
| 929 | struct ioc_vol *arg = (struct ioc_vol *)addr; |
| 930 | struct cd_mode_data data; |
| 931 | if(error = cd_get_mode(unit,&data,AUDIO_PAGE)) |
| 932 | break; |
| 933 | data.page.audio.port[LEFT_PORT].volume = arg->vol[LEFT_PORT]; |
| 934 | data.page.audio.port[RIGHT_PORT].volume = arg->vol[RIGHT_PORT]; |
| 935 | data.page.audio.port[2].volume = arg->vol[2]; |
| 936 | data.page.audio.port[3].volume = arg->vol[3]; |
| 937 | if(error = cd_set_mode(unit,&data)) |
| 938 | break; |
| 939 | } |
| 940 | break; |
| 941 | case CDIOCSETMONO: |
| 942 | { |
| 943 | struct ioc_vol *arg = (struct ioc_vol *)addr; |
| 944 | struct cd_mode_data data; |
| 945 | if(error = cd_get_mode(unit,&data,AUDIO_PAGE)) |
| 946 | break; |
| 947 | data.page.audio.port[LEFT_PORT].channels = LEFT_CHANNEL|RIGHT_CHANNEL|4|8; |
| 948 | data.page.audio.port[RIGHT_PORT].channels = LEFT_CHANNEL|RIGHT_CHANNEL; |
| 949 | data.page.audio.port[2].channels = 0; |
| 950 | data.page.audio.port[3].channels = 0; |
| 951 | if(error = cd_set_mode(unit,&data)) |
| 952 | break; |
| 953 | } |
| 954 | break; |
| 955 | case CDIOCSETSTERIO: |
| 956 | { |
| 957 | struct ioc_vol *arg = (struct ioc_vol *)addr; |
| 958 | struct cd_mode_data data; |
| 959 | if(error = cd_get_mode(unit,&data,AUDIO_PAGE)) |
| 960 | break; |
| 961 | data.page.audio.port[LEFT_PORT].channels = LEFT_CHANNEL; |
| 962 | data.page.audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL; |
| 963 | data.page.audio.port[2].channels = 0; |
| 964 | data.page.audio.port[3].channels = 0; |
| 965 | if(error = cd_set_mode(unit,&data)) |
| 966 | break; |
| 967 | } |
| 968 | break; |
| 969 | case CDIOCSETMUTE: |
| 970 | { |
| 971 | struct ioc_vol *arg = (struct ioc_vol *)addr; |
| 972 | struct cd_mode_data data; |
| 973 | if(error = cd_get_mode(unit,&data,AUDIO_PAGE)) |
| 974 | break; |
| 975 | data.page.audio.port[LEFT_PORT].channels = 0; |
| 976 | data.page.audio.port[RIGHT_PORT].channels = 0; |
| 977 | data.page.audio.port[2].channels = 0; |
| 978 | data.page.audio.port[3].channels = 0; |
| 979 | if(error = cd_set_mode(unit,&data)) |
| 980 | break; |
| 981 | } |
| 982 | break; |
| 983 | case CDIOCSETLEFT: |
| 984 | { |
| 985 | struct ioc_vol *arg = (struct ioc_vol *)addr; |
| 986 | struct cd_mode_data data; |
| 987 | if(error = cd_get_mode(unit,&data,AUDIO_PAGE)) |
| 988 | break; |
| 989 | data.page.audio.port[LEFT_PORT].channels = LEFT_CHANNEL; |
| 990 | data.page.audio.port[RIGHT_PORT].channels = LEFT_CHANNEL; |
| 991 | data.page.audio.port[2].channels = 0; |
| 992 | data.page.audio.port[3].channels = 0; |
| 993 | if(error = cd_set_mode(unit,&data)) |
| 994 | break; |
| 995 | } |
| 996 | break; |
| 997 | case CDIOCSETRIGHT: |
| 998 | { |
| 999 | struct ioc_vol *arg = (struct ioc_vol *)addr; |
| 1000 | struct cd_mode_data data; |
| 1001 | if(error = cd_get_mode(unit,&data,AUDIO_PAGE)) |
| 1002 | break; |
| 1003 | data.page.audio.port[LEFT_PORT].channels = RIGHT_CHANNEL; |
| 1004 | data.page.audio.port[RIGHT_PORT].channels = RIGHT_CHANNEL; |
| 1005 | data.page.audio.port[2].channels = 0; |
| 1006 | data.page.audio.port[3].channels = 0; |
| 1007 | if(error = cd_set_mode(unit,&data)) |
| 1008 | break; |
| 1009 | } |
| 1010 | break; |
| 1011 | case CDIOCRESUME: |
| 1012 | error = cd_pause(unit,1); |
| 1013 | break; |
| 1014 | case CDIOCPAUSE: |
| 1015 | error = cd_pause(unit,0); |
| 1016 | break; |
| 1017 | case CDIOCSTART: |
| 1018 | error = cd_start_unit(unit,part,CD_START); |
| 1019 | break; |
| 1020 | case CDIOCSTOP: |
| 1021 | error = cd_start_unit(unit,part,CD_STOP); |
| 1022 | break; |
| 1023 | case CDIOCEJECT: |
| 1024 | error = cd_start_unit(unit,part,CD_EJECT); |
| 1025 | break; |
| 1026 | case CDIOCSETDEBUG: |
| 1027 | scsi_debug = 0xfff; cd_debug = 0xfff; |
| 1028 | break; |
| 1029 | case CDIOCCLRDEBUG: |
| 1030 | scsi_debug = 0; cd_debug = 0; |
| 1031 | break; |
| 1032 | case CDIOCRESET: |
| 1033 | return(cd_reset(unit)); |
| 1034 | break; |
| 1035 | default: |
| 1036 | error = ENOTTY; |
| 1037 | break; |
| 1038 | } |
| 1039 | return (error); |
| 1040 | } |
| 1041 | |
| 1042 | |
| 1043 | /*******************************************************\ |
| 1044 | * Load the label information on the named device * |
| 1045 | * * |
| 1046 | * EVENTUALLY take information about different * |
| 1047 | * data tracks from the TOC and put it in the disklabel * |
| 1048 | \*******************************************************/ |
| 1049 | int cdgetdisklabel(unit) |
| 1050 | unsigned char unit; |
| 1051 | { |
| 1052 | /*unsigned int n, m;*/ |
| 1053 | char *errstring; |
| 1054 | struct dos_partition *dos_partition_p; |
| 1055 | struct cd_data *cd; |
| 1056 | |
| 1057 | cd = cd_driver->cd_data[unit]; |
| 1058 | /*******************************************************\ |
| 1059 | * If the info is already loaded, use it * |
| 1060 | \*******************************************************/ |
| 1061 | if(cd->flags & CDHAVELABEL) return; |
| 1062 | |
| 1063 | bzero(&cd->disklabel,sizeof(struct disklabel)); |
| 1064 | /*******************************************************\ |
| 1065 | * make partition 3 the whole disk in case of failure * |
| 1066 | * then get pdinfo * |
| 1067 | \*******************************************************/ |
| 1068 | strncpy(cd->disklabel.d_typename,"scsi cd_rom",16); |
| 1069 | strncpy(cd->disklabel.d_packname,"ficticious",16); |
| 1070 | cd->disklabel.d_secsize = cd->params.blksize; /* as long as it's not 0 */ |
| 1071 | cd->disklabel.d_nsectors = 100; |
| 1072 | cd->disklabel.d_ntracks = 1; |
| 1073 | cd->disklabel.d_ncylinders = (cd->params.disksize / 100) + 1; |
| 1074 | cd->disklabel.d_secpercyl = 100; |
| 1075 | cd->disklabel.d_secperunit = cd->params.disksize; |
| 1076 | cd->disklabel.d_rpm = 300; |
| 1077 | cd->disklabel.d_interleave = 1; |
| 1078 | cd->disklabel.d_flags = D_REMOVABLE; |
| 1079 | |
| 1080 | cd->disklabel.d_npartitions = 1; |
| 1081 | cd->disklabel.d_partitions[0].p_offset = 0; |
| 1082 | cd->disklabel.d_partitions[0].p_size = cd->params.disksize; |
| 1083 | cd->disklabel.d_partitions[0].p_fstype = 9; |
| 1084 | |
| 1085 | cd->disklabel.d_magic = DISKMAGIC; |
| 1086 | cd->disklabel.d_magic2 = DISKMAGIC; |
| 1087 | cd->disklabel.d_checksum = dkcksum(&(cd->disklabel)); |
| 1088 | |
| 1089 | /*******************************************************\ |
| 1090 | * Signal to other users and routines that we now have a * |
| 1091 | * disklabel that represents the media (maybe) * |
| 1092 | \*******************************************************/ |
| 1093 | cd->flags |= CDHAVELABEL; |
| 1094 | return(ESUCCESS); |
| 1095 | } |
| 1096 | |
| 1097 | /*******************************************************\ |
| 1098 | * Find out form the device what it's capacity is * |
| 1099 | \*******************************************************/ |
| 1100 | cd_size(unit, flags) |
| 1101 | { |
| 1102 | struct scsi_read_cd_cap_data rdcap; |
| 1103 | struct scsi_read_cd_capacity scsi_cmd; |
| 1104 | int size; |
| 1105 | int blksize; |
| 1106 | |
| 1107 | /*******************************************************\ |
| 1108 | * make up a scsi command and ask the scsi driver to do * |
| 1109 | * it for you. * |
| 1110 | \*******************************************************/ |
| 1111 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 1112 | scsi_cmd.op_code = READ_CD_CAPACITY; |
| 1113 | |
| 1114 | /*******************************************************\ |
| 1115 | * If the command works, interpret the result as a 4 byte* |
| 1116 | * number of blocks * |
| 1117 | \*******************************************************/ |
| 1118 | if (cd_scsi_cmd(unit, |
| 1119 | &scsi_cmd, |
| 1120 | sizeof(scsi_cmd), |
| 1121 | &rdcap, |
| 1122 | sizeof(rdcap), |
| 1123 | 2000, |
| 1124 | flags) != 0) |
| 1125 | { |
| 1126 | printf("cd%d: could not get size\n", unit); |
| 1127 | return(0); |
| 1128 | } else { |
| 1129 | size = rdcap.addr_0 + 1 ; |
| 1130 | size += rdcap.addr_1 << 8; |
| 1131 | size += rdcap.addr_2 << 16; |
| 1132 | size += rdcap.addr_3 << 24; |
| 1133 | blksize = rdcap.length_0 ; |
| 1134 | blksize += rdcap.length_1 << 8; |
| 1135 | blksize += rdcap.length_2 << 16; |
| 1136 | blksize += rdcap.length_3 << 24; |
| 1137 | } |
| 1138 | #ifdef CDDEBUG |
| 1139 | if(cd_debug)printf("cd%d: %d %d byte blocks\n",unit,size,blksize); |
| 1140 | #endif /*CDDEBUG*/ |
| 1141 | cd_driver->cd_data[unit]->params.disksize = size; |
| 1142 | cd_driver->cd_data[unit]->params.blksize = blksize; |
| 1143 | return(size); |
| 1144 | } |
| 1145 | |
| 1146 | /*******************************************************\ |
| 1147 | * Check with the device that it is ok, (via scsi driver)* |
| 1148 | \*******************************************************/ |
| 1149 | cd_req_sense(unit, flags) |
| 1150 | { |
| 1151 | struct scsi_sense_data sense_data; |
| 1152 | struct scsi_sense scsi_cmd; |
| 1153 | |
| 1154 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 1155 | scsi_cmd.op_code = REQUEST_SENSE; |
| 1156 | scsi_cmd.length = sizeof(sense_data); |
| 1157 | |
| 1158 | if (cd_scsi_cmd(unit, |
| 1159 | &scsi_cmd, |
| 1160 | sizeof(scsi_cmd), |
| 1161 | &sense_data, |
| 1162 | sizeof(sense_data), |
| 1163 | 2000, |
| 1164 | flags) != 0) |
| 1165 | { |
| 1166 | return(ENXIO); |
| 1167 | } |
| 1168 | else |
| 1169 | return(0); |
| 1170 | } |
| 1171 | |
| 1172 | /*******************************************************\ |
| 1173 | * Get the requested page into the buffer given * |
| 1174 | \*******************************************************/ |
| 1175 | cd_get_mode(unit,data,page) |
| 1176 | int unit; |
| 1177 | struct cd_mode_data *data; |
| 1178 | int page; |
| 1179 | { |
| 1180 | struct scsi_mode_sense scsi_cmd; |
| 1181 | int retval; |
| 1182 | |
| 1183 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 1184 | bzero(data,sizeof(*data)); |
| 1185 | scsi_cmd.op_code = MODE_SENSE; |
| 1186 | scsi_cmd.page = page; |
| 1187 | scsi_cmd.length = sizeof(*data) & 0xff; |
| 1188 | retval = cd_scsi_cmd(unit, |
| 1189 | &scsi_cmd, |
| 1190 | sizeof(scsi_cmd), |
| 1191 | data, |
| 1192 | sizeof(*data), |
| 1193 | 20000, /* should be immed */ |
| 1194 | 0); |
| 1195 | return (retval); |
| 1196 | } |
| 1197 | /*******************************************************\ |
| 1198 | * Get the requested page into the buffer given * |
| 1199 | \*******************************************************/ |
| 1200 | cd_set_mode(unit,data) |
| 1201 | int unit; |
| 1202 | struct cd_mode_data *data; |
| 1203 | { |
| 1204 | struct scsi_mode_select scsi_cmd; |
| 1205 | |
| 1206 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 1207 | scsi_cmd.op_code = MODE_SELECT; |
| 1208 | scsi_cmd.byte2 |= SMS_PF; |
| 1209 | scsi_cmd.length = sizeof(*data) & 0xff; |
| 1210 | data->header.data_length = 0; |
| 1211 | /*show_mem(data,sizeof(*data));/**/ |
| 1212 | return (cd_scsi_cmd(unit, |
| 1213 | &scsi_cmd, |
| 1214 | sizeof(scsi_cmd), |
| 1215 | data, |
| 1216 | sizeof(*data), |
| 1217 | 20000, /* should be immed */ |
| 1218 | 0) |
| 1219 | ); |
| 1220 | } |
| 1221 | /*******************************************************\ |
| 1222 | * Get scsi driver to send a "start playing" command * |
| 1223 | \*******************************************************/ |
| 1224 | cd_play(unit,blk,len) |
| 1225 | int unit,blk,len; |
| 1226 | { |
| 1227 | struct scsi_play scsi_cmd; |
| 1228 | int retval; |
| 1229 | |
| 1230 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 1231 | scsi_cmd.op_code = PLAY; |
| 1232 | scsi_cmd.blk_addr[0] = (blk >> 24) & 0xff; |
| 1233 | scsi_cmd.blk_addr[1] = (blk >> 16) & 0xff; |
| 1234 | scsi_cmd.blk_addr[2] = (blk >> 8) & 0xff; |
| 1235 | scsi_cmd.blk_addr[3] = blk & 0xff; |
| 1236 | scsi_cmd.xfer_len[0] = (len >> 8) & 0xff; |
| 1237 | scsi_cmd.xfer_len[1] = len & 0xff; |
| 1238 | retval = cd_scsi_cmd(unit, |
| 1239 | &scsi_cmd, |
| 1240 | sizeof(scsi_cmd), |
| 1241 | 0, |
| 1242 | 0, |
| 1243 | 200000, /* should be immed */ |
| 1244 | 0); |
| 1245 | return(retval); |
| 1246 | } |
| 1247 | /*******************************************************\ |
| 1248 | * Get scsi driver to send a "start playing" command * |
| 1249 | \*******************************************************/ |
| 1250 | cd_play_big(unit,blk,len) |
| 1251 | int unit,blk,len; |
| 1252 | { |
| 1253 | struct scsi_play_big scsi_cmd; |
| 1254 | int retval; |
| 1255 | |
| 1256 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 1257 | scsi_cmd.op_code = PLAY_BIG; |
| 1258 | scsi_cmd.blk_addr[0] = (blk >> 24) & 0xff; |
| 1259 | scsi_cmd.blk_addr[1] = (blk >> 16) & 0xff; |
| 1260 | scsi_cmd.blk_addr[2] = (blk >> 8) & 0xff; |
| 1261 | scsi_cmd.blk_addr[3] = blk & 0xff; |
| 1262 | scsi_cmd.xfer_len[0] = (len >> 24) & 0xff; |
| 1263 | scsi_cmd.xfer_len[1] = (len >> 16) & 0xff; |
| 1264 | scsi_cmd.xfer_len[2] = (len >> 8) & 0xff; |
| 1265 | scsi_cmd.xfer_len[3] = len & 0xff; |
| 1266 | retval = cd_scsi_cmd(unit, |
| 1267 | &scsi_cmd, |
| 1268 | sizeof(scsi_cmd), |
| 1269 | 0, |
| 1270 | 0, |
| 1271 | 20000, /* should be immed */ |
| 1272 | 0); |
| 1273 | return(retval); |
| 1274 | } |
| 1275 | /*******************************************************\ |
| 1276 | * Get scsi driver to send a "start playing" command * |
| 1277 | \*******************************************************/ |
| 1278 | cd_play_tracks(unit,strack,sindex,etrack,eindex) |
| 1279 | int unit,strack,sindex,etrack,eindex; |
| 1280 | { |
| 1281 | struct scsi_play_track scsi_cmd; |
| 1282 | int retval; |
| 1283 | |
| 1284 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 1285 | scsi_cmd.op_code = PLAY_TRACK; |
| 1286 | scsi_cmd.start_track = strack; |
| 1287 | scsi_cmd.start_index = sindex; |
| 1288 | scsi_cmd.end_track = etrack; |
| 1289 | scsi_cmd.end_index = eindex; |
| 1290 | retval = cd_scsi_cmd(unit, |
| 1291 | &scsi_cmd, |
| 1292 | sizeof(scsi_cmd), |
| 1293 | 0, |
| 1294 | 0, |
| 1295 | 20000, /* should be immed */ |
| 1296 | 0); |
| 1297 | return(retval); |
| 1298 | } |
| 1299 | /*******************************************************\ |
| 1300 | * Get scsi driver to send a "play msf" command * |
| 1301 | \*******************************************************/ |
| 1302 | cd_play_msf(unit,startm,starts,startf,endm,ends,endf) |
| 1303 | int unit,startm,starts,startf,endm,ends,endf; |
| 1304 | { |
| 1305 | struct scsi_play_msf scsi_cmd; |
| 1306 | |
| 1307 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 1308 | scsi_cmd.op_code = PLAY_MSF; |
| 1309 | scsi_cmd.start_m=startm; |
| 1310 | scsi_cmd.start_s=starts; |
| 1311 | scsi_cmd.start_f=startf; |
| 1312 | scsi_cmd.end_m=endm; |
| 1313 | scsi_cmd.end_s=ends; |
| 1314 | scsi_cmd.end_f=endf; |
| 1315 | |
| 1316 | return (cd_scsi_cmd(unit, |
| 1317 | &scsi_cmd, |
| 1318 | sizeof(scsi_cmd), |
| 1319 | 0, |
| 1320 | 0, |
| 1321 | 2000, |
| 1322 | 0)); |
| 1323 | } |
| 1324 | /*******************************************************\ |
| 1325 | * Get scsi driver to send a "start up" command * |
| 1326 | \*******************************************************/ |
| 1327 | cd_pause(unit,go) |
| 1328 | int unit,go; |
| 1329 | { |
| 1330 | struct scsi_pause scsi_cmd; |
| 1331 | |
| 1332 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 1333 | scsi_cmd.op_code = PAUSE; |
| 1334 | scsi_cmd.resume = go; |
| 1335 | |
| 1336 | return (cd_scsi_cmd(unit, |
| 1337 | &scsi_cmd, |
| 1338 | sizeof(scsi_cmd), |
| 1339 | 0, |
| 1340 | 0, |
| 1341 | 2000, |
| 1342 | 0)); |
| 1343 | } |
| 1344 | /*******************************************************\ |
| 1345 | * Get scsi driver to send a "start up" command * |
| 1346 | \*******************************************************/ |
| 1347 | cd_reset(unit) |
| 1348 | int unit; |
| 1349 | { |
| 1350 | return(cd_scsi_cmd(unit,0,0,0,0,2000,SCSI_RESET)); |
| 1351 | } |
| 1352 | /*******************************************************\ |
| 1353 | * Get scsi driver to send a "start up" command * |
| 1354 | \*******************************************************/ |
| 1355 | cd_start_unit(unit,part,type) |
| 1356 | { |
| 1357 | struct scsi_start_stop scsi_cmd; |
| 1358 | |
| 1359 | if(type==CD_EJECT && (cd_driver->cd_data[unit]->openparts&~(1<<part)) == 0 ) { |
| 1360 | cd_prevent_unit(unit,CD_EJECT,0); |
| 1361 | } |
| 1362 | |
| 1363 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 1364 | scsi_cmd.op_code = START_STOP; |
| 1365 | scsi_cmd.how |= (type==CD_START)?SSS_START:0; |
| 1366 | scsi_cmd.how |= (type==CD_EJECT)?SSS_LOEJ:0; |
| 1367 | |
| 1368 | if (cd_scsi_cmd(unit, |
| 1369 | &scsi_cmd, |
| 1370 | sizeof(scsi_cmd), |
| 1371 | 0, |
| 1372 | 0, |
| 1373 | 2000, |
| 1374 | 0) != 0) { |
| 1375 | return(ENXIO); |
| 1376 | } else |
| 1377 | return(0); |
| 1378 | } |
| 1379 | /*******************************************************\ |
| 1380 | * Prevent or allow the user to remove the disk * |
| 1381 | \*******************************************************/ |
| 1382 | cd_prevent_unit(unit,type,flags) |
| 1383 | int unit,type,flags; |
| 1384 | { |
| 1385 | struct scsi_prevent scsi_cmd; |
| 1386 | |
| 1387 | if(type==CD_EJECT || type==PR_PREVENT || cd_driver->cd_data[unit]->openparts == 0 ) { |
| 1388 | bzero(&scsi_cmd, sizeof(scsi_cmd)); |
| 1389 | scsi_cmd.op_code = PREVENT_ALLOW; |
| 1390 | scsi_cmd.how = (type==CD_EJECT)?PR_ALLOW:type; |
| 1391 | if (cd_scsi_cmd(unit, |
| 1392 | &scsi_cmd, |
| 1393 | sizeof(struct scsi_prevent), |
| 1394 | 0, |
| 1395 | 0, |
| 1396 | 5000, |
| 1397 | 0) != 0) |
| 1398 | { |
| 1399 | if(!(flags & SCSI_SILENT)) |
| 1400 | printf("cd%d: cannot prevent/allow\n", unit); |
| 1401 | return(0); |
| 1402 | } |
| 1403 | } |
| 1404 | return(1); |
| 1405 | } |
| 1406 | |
| 1407 | /******************************************************\ |
| 1408 | * Read Subchannel * |
| 1409 | \******************************************************/ |
| 1410 | |
| 1411 | cd_read_subchannel(unit,mode,format,track,data,len) |
| 1412 | int unit,mode,format,len; |
| 1413 | struct cd_sub_channel_info *data; |
| 1414 | { |
| 1415 | struct scsi_read_subchannel scsi_cmd; |
| 1416 | int error; |
| 1417 | |
| 1418 | bzero(&scsi_cmd,sizeof(scsi_cmd)); |
| 1419 | |
| 1420 | scsi_cmd.op_code=READ_SUBCHANNEL; |
| 1421 | if(mode==CD_MSF_FORMAT) |
| 1422 | scsi_cmd.byte2 |= CD_MSF; |
| 1423 | scsi_cmd.byte3=SRS_SUBQ; |
| 1424 | scsi_cmd.subchan_format=format; |
| 1425 | scsi_cmd.track=track; |
| 1426 | scsi_cmd.data_len[0]=(len)>>8; |
| 1427 | scsi_cmd.data_len[1]=(len)&0xff; |
| 1428 | return cd_scsi_cmd(unit, |
| 1429 | &scsi_cmd, |
| 1430 | sizeof(struct scsi_read_subchannel), |
| 1431 | data, |
| 1432 | len, |
| 1433 | 5000, |
| 1434 | 0); |
| 1435 | } |
| 1436 | |
| 1437 | /*******************************************************\ |
| 1438 | * Read Table of contents * |
| 1439 | \*******************************************************/ |
| 1440 | cd_read_toc(unit,mode,start,data,len) |
| 1441 | int unit,mode,start,len; |
| 1442 | struct cd_toc_entry *data; |
| 1443 | { |
| 1444 | struct scsi_read_toc scsi_cmd; |
| 1445 | int error; |
| 1446 | int ntoc; |
| 1447 | |
| 1448 | bzero(&scsi_cmd,sizeof(scsi_cmd)); |
| 1449 | /*if(len!=sizeof(struct ioc_toc_header)) |
| 1450 | ntoc=((len)-sizeof(struct ioc_toc_header))/sizeof(struct cd_toc_entry); |
| 1451 | else*/ |
| 1452 | ntoc=len; |
| 1453 | |
| 1454 | scsi_cmd.op_code=READ_TOC; |
| 1455 | if(mode==CD_MSF_FORMAT) |
| 1456 | scsi_cmd.byte2 |= CD_MSF; |
| 1457 | scsi_cmd.from_track=start; |
| 1458 | scsi_cmd.data_len[0]=(ntoc)>>8; |
| 1459 | scsi_cmd.data_len[1]=(ntoc)&0xff; |
| 1460 | return cd_scsi_cmd(unit, |
| 1461 | &scsi_cmd, |
| 1462 | sizeof(struct scsi_read_toc), |
| 1463 | data, |
| 1464 | len, |
| 1465 | 5000, |
| 1466 | 0); |
| 1467 | } |
| 1468 | |
| 1469 | |
| 1470 | #define b2tol(a) (((unsigned)(a##_1) << 8) + (unsigned)a##_0 ) |
| 1471 | |
| 1472 | /*******************************************************\ |
| 1473 | * Get the scsi driver to send a full inquiry to the * |
| 1474 | * device and use the results to fill out the disk * |
| 1475 | * parameter structure. * |
| 1476 | \*******************************************************/ |
| 1477 | |
| 1478 | int cd_get_parms(unit, flags) |
| 1479 | { |
| 1480 | struct cd_data *cd = cd_driver->cd_data[unit]; |
| 1481 | |
| 1482 | /*******************************************************\ |
| 1483 | * First check if we have it all loaded * |
| 1484 | \*******************************************************/ |
| 1485 | if(cd->flags & CDVALID) return(0); |
| 1486 | /*******************************************************\ |
| 1487 | * give a number of sectors so that sec * trks * cyls * |
| 1488 | * is <= disk_size * |
| 1489 | \*******************************************************/ |
| 1490 | if(cd_size(unit, flags)) |
| 1491 | { |
| 1492 | cd->flags |= CDVALID; |
| 1493 | return(0); |
| 1494 | } |
| 1495 | else |
| 1496 | { |
| 1497 | return(ENXIO); |
| 1498 | } |
| 1499 | } |
| 1500 | |
| 1501 | /*******************************************************\ |
| 1502 | * close the device.. only called if we are the LAST * |
| 1503 | * occurence of an open device * |
| 1504 | \*******************************************************/ |
| 1505 | cdclose(dev) |
| 1506 | dev_t dev; |
| 1507 | { |
| 1508 | unsigned char unit, part; |
| 1509 | unsigned int old_priority; |
| 1510 | |
| 1511 | unit = UNIT(dev); |
| 1512 | part = PARTITION(dev); |
| 1513 | #ifdef CDDEBUG |
| 1514 | if(scsi_debug & TRACEOPENS) |
| 1515 | printf("cd%d: closing part %d\n",unit,part); |
| 1516 | #endif |
| 1517 | cd_driver->cd_data[unit]->partflags[part] &= ~CDOPEN; |
| 1518 | cd_driver->cd_data[unit]->openparts &= ~(1 << part); |
| 1519 | cd_prevent_unit(unit,PR_ALLOW,SCSI_SILENT); |
| 1520 | return(0); |
| 1521 | } |
| 1522 | |
| 1523 | /*******************************************************\ |
| 1524 | * ask the scsi driver to perform a command for us. * |
| 1525 | * Call it through the switch table, and tell it which * |
| 1526 | * sub-unit we want, and what target and lu we wish to * |
| 1527 | * talk to. Also tell it where to find the command * |
| 1528 | * how long int is. * |
| 1529 | * Also tell it where to read/write the data, and how * |
| 1530 | * long the data is supposed to be * |
| 1531 | \*******************************************************/ |
| 1532 | int cd_scsi_cmd(unit,scsi_cmd,cmdlen,data_addr,datalen,timeout,flags) |
| 1533 | |
| 1534 | int unit,flags; |
| 1535 | struct scsi_generic *scsi_cmd; |
| 1536 | int cmdlen; |
| 1537 | int timeout; |
| 1538 | u_char *data_addr; |
| 1539 | int datalen; |
| 1540 | { |
| 1541 | struct scsi_xfer *xs; |
| 1542 | int retval; |
| 1543 | int s; |
| 1544 | struct cd_data *cd = cd_driver->cd_data[unit]; |
| 1545 | |
| 1546 | #ifdef CDDEBUG |
| 1547 | if(scsi_debug & PRINTROUTINES) printf("\ncd_scsi_cmd%d ",unit); |
| 1548 | #endif /*CDDEBUG*/ |
| 1549 | if(cd->sc_sw) /* If we have a scsi driver */ |
| 1550 | { |
| 1551 | xs = cd_get_xs(unit,flags); /* should wait unless booting */ |
| 1552 | if(!xs) |
| 1553 | { |
| 1554 | printf("cd%d: scsi_cmd controller busy" |
| 1555 | " (this should never happen)\n",unit); |
| 1556 | return(EBUSY); |
| 1557 | } |
| 1558 | xs->flags |= INUSE; |
| 1559 | /*******************************************************\ |
| 1560 | * Fill out the scsi_xfer structure * |
| 1561 | \*******************************************************/ |
| 1562 | xs->flags |= flags; |
| 1563 | xs->adapter = cd->ctlr; |
| 1564 | xs->targ = cd->targ; |
| 1565 | xs->lu = cd->lu; |
| 1566 | xs->retries = CD_RETRIES; |
| 1567 | xs->timeout = timeout; |
| 1568 | xs->cmd = scsi_cmd; |
| 1569 | xs->cmdlen = cmdlen; |
| 1570 | xs->data = data_addr; |
| 1571 | xs->datalen = datalen; |
| 1572 | xs->resid = datalen; |
| 1573 | xs->when_done = (flags & SCSI_NOMASK) |
| 1574 | ?(int (*)())0 |
| 1575 | :cd_done; |
| 1576 | xs->done_arg = unit; |
| 1577 | xs->done_arg2 = (int)xs; |
| 1578 | retry: xs->error = XS_NOERROR; |
| 1579 | xs->bp = 0; |
| 1580 | retval = (*(cd->sc_sw->scsi_cmd))(xs); |
| 1581 | switch(retval) |
| 1582 | { |
| 1583 | case SUCCESSFULLY_QUEUED: |
| 1584 | s = splbio(); |
| 1585 | while(!(xs->flags & ITSDONE)) |
| 1586 | sleep(xs,PRIBIO+1); |
| 1587 | splx(s); |
| 1588 | |
| 1589 | case HAD_ERROR: |
| 1590 | /*printf("err = %d ",xs->error);*/ |
| 1591 | switch(xs->error) |
| 1592 | { |
| 1593 | case XS_NOERROR: |
| 1594 | retval = ESUCCESS; |
| 1595 | break; |
| 1596 | case XS_SENSE: |
| 1597 | retval = (cd_interpret_sense(unit,xs)); |
| 1598 | break; |
| 1599 | case XS_DRIVER_STUFFUP: |
| 1600 | retval = EIO; |
| 1601 | break; |
| 1602 | |
| 1603 | |
| 1604 | case XS_BUSY: |
| 1605 | case XS_TIMEOUT: |
| 1606 | if(xs->retries-- ) |
| 1607 | { |
| 1608 | xs->flags &= ~ITSDONE; |
| 1609 | goto retry; |
| 1610 | } |
| 1611 | retval = EIO; |
| 1612 | break; |
| 1613 | default: |
| 1614 | retval = EIO; |
| 1615 | printf("cd%d: unknown error category from scsi driver\n" |
| 1616 | ,unit); |
| 1617 | } |
| 1618 | break; |
| 1619 | case COMPLETE: |
| 1620 | retval = ESUCCESS; |
| 1621 | break; |
| 1622 | case TRY_AGAIN_LATER: |
| 1623 | if(xs->retries-- ) |
| 1624 | { |
| 1625 | if(tsleep( 0,PRIBIO + 2,"retry",hz * 2)) |
| 1626 | { |
| 1627 | xs->flags &= ~ITSDONE; |
| 1628 | goto retry; |
| 1629 | } |
| 1630 | } |
| 1631 | retval = EIO; |
| 1632 | break; |
| 1633 | default: |
| 1634 | retval = EIO; |
| 1635 | } |
| 1636 | cd_free_xs(unit,xs,flags); |
| 1637 | cdstart(unit); /* check if anything is waiting fr the xs */ |
| 1638 | } |
| 1639 | else |
| 1640 | { |
| 1641 | printf("cd%d: not set up\n",unit); |
| 1642 | return(EINVAL); |
| 1643 | } |
| 1644 | return(retval); |
| 1645 | } |
| 1646 | /***************************************************************\ |
| 1647 | * Look at the returned sense and act on the error and detirmine * |
| 1648 | * The unix error number to pass back... (0 = report no error) * |
| 1649 | \***************************************************************/ |
| 1650 | |
| 1651 | int cd_interpret_sense(unit,xs) |
| 1652 | int unit; |
| 1653 | struct scsi_xfer *xs; |
| 1654 | { |
| 1655 | struct scsi_sense_data *sense; |
| 1656 | int key; |
| 1657 | int silent; |
| 1658 | |
| 1659 | /***************************************************************\ |
| 1660 | * If the flags say errs are ok, then always return ok. * |
| 1661 | \***************************************************************/ |
| 1662 | if (xs->flags & SCSI_ERR_OK) return(ESUCCESS); |
| 1663 | silent = (xs->flags & SCSI_SILENT); |
| 1664 | |
| 1665 | sense = &(xs->sense); |
| 1666 | switch(sense->error_code & SSD_ERRCODE) |
| 1667 | { |
| 1668 | case 0x70: |
| 1669 | { |
| 1670 | key=sense->ext.extended.flags & SSD_KEY; |
| 1671 | switch(key) |
| 1672 | { |
| 1673 | case 0x0: |
| 1674 | return(ESUCCESS); |
| 1675 | case 0x1: |
| 1676 | if(!silent) |
| 1677 | { |
| 1678 | printf("cd%d: soft error(corrected)", unit); |
| 1679 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1680 | { |
| 1681 | printf(" block no. %d (decimal)", |
| 1682 | (sense->ext.extended.info[0] <<24)| |
| 1683 | (sense->ext.extended.info[1] <<16)| |
| 1684 | (sense->ext.extended.info[2] <<8)| |
| 1685 | (sense->ext.extended.info[3] )); |
| 1686 | } |
| 1687 | printf("\n"); |
| 1688 | } |
| 1689 | return(ESUCCESS); |
| 1690 | case 0x2: |
| 1691 | if(!silent)printf("cd%d: not ready\n", unit); |
| 1692 | return(ENODEV); |
| 1693 | case 0x3: |
| 1694 | if(!silent) |
| 1695 | { |
| 1696 | printf("cd%d: medium error", unit); |
| 1697 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1698 | { |
| 1699 | printf(" block no. %d (decimal)", |
| 1700 | (sense->ext.extended.info[0] <<24)| |
| 1701 | (sense->ext.extended.info[1] <<16)| |
| 1702 | (sense->ext.extended.info[2] <<8)| |
| 1703 | (sense->ext.extended.info[3] )); |
| 1704 | } |
| 1705 | printf("\n"); |
| 1706 | } |
| 1707 | return(EIO); |
| 1708 | case 0x4: |
| 1709 | if(!silent)printf("cd%d: non-media hardware failure\n", |
| 1710 | unit); |
| 1711 | return(EIO); |
| 1712 | case 0x5: |
| 1713 | if(!silent)printf("cd%d: illegal request\n", |
| 1714 | unit); |
| 1715 | return(EINVAL); |
| 1716 | case 0x6: |
| 1717 | if(!silent)printf("cd%d: Unit attention\n", unit); |
| 1718 | if (cd_driver->cd_data[unit]->openparts) |
| 1719 | cd_driver->cd_data[unit]->flags &= ~(CDVALID | CDHAVELABEL); |
| 1720 | { |
| 1721 | return(EIO); |
| 1722 | } |
| 1723 | return(ESUCCESS); |
| 1724 | case 0x7: |
| 1725 | if(!silent) |
| 1726 | { |
| 1727 | printf("cd%d: attempted protection violation", |
| 1728 | unit); |
| 1729 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1730 | { |
| 1731 | printf(" block no. %d (decimal)", |
| 1732 | (sense->ext.extended.info[0] <<24)| |
| 1733 | (sense->ext.extended.info[1] <<16)| |
| 1734 | (sense->ext.extended.info[2] <<8)| |
| 1735 | (sense->ext.extended.info[3] )); |
| 1736 | } |
| 1737 | printf("\n"); |
| 1738 | } |
| 1739 | return(EACCES); |
| 1740 | case 0x8: |
| 1741 | if(!silent) |
| 1742 | { |
| 1743 | printf("cd%d: block wrong state (worm)", |
| 1744 | unit); |
| 1745 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1746 | { |
| 1747 | printf(" block no. %d (decimal)", |
| 1748 | (sense->ext.extended.info[0] <<24)| |
| 1749 | (sense->ext.extended.info[1] <<16)| |
| 1750 | (sense->ext.extended.info[2] <<8)| |
| 1751 | (sense->ext.extended.info[3] )); |
| 1752 | } |
| 1753 | printf("\n"); |
| 1754 | } |
| 1755 | return(EIO); |
| 1756 | case 0x9: |
| 1757 | if(!silent)printf("cd%d: vendor unique\n", unit); |
| 1758 | return(EIO); |
| 1759 | case 0xa: |
| 1760 | if(!silent)printf("cd%d: copy aborted\n", unit); |
| 1761 | return(EIO); |
| 1762 | case 0xb: |
| 1763 | if(!silent)printf("cd%d: command aborted\n", unit); |
| 1764 | return(EIO); |
| 1765 | case 0xc: |
| 1766 | if(!silent) |
| 1767 | { |
| 1768 | printf("cd%d: search returned", unit); |
| 1769 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1770 | { |
| 1771 | printf(" block no. %d (decimal)", |
| 1772 | (sense->ext.extended.info[0] <<24)| |
| 1773 | (sense->ext.extended.info[1] <<16)| |
| 1774 | (sense->ext.extended.info[2] <<8)| |
| 1775 | (sense->ext.extended.info[3] )); |
| 1776 | } |
| 1777 | printf("\n"); |
| 1778 | } |
| 1779 | return(ESUCCESS); |
| 1780 | case 0xd: |
| 1781 | if(!silent)printf("cd%d: volume overflow\n", unit); |
| 1782 | return(ENOSPC); |
| 1783 | case 0xe: |
| 1784 | if(!silent) |
| 1785 | { |
| 1786 | printf("cd%d: verify miscompare", unit); |
| 1787 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1788 | { |
| 1789 | printf(" block no. %d (decimal)", |
| 1790 | (sense->ext.extended.info[0] <<24)| |
| 1791 | (sense->ext.extended.info[1] <<16)| |
| 1792 | (sense->ext.extended.info[2] <<8)| |
| 1793 | (sense->ext.extended.info[3] )); |
| 1794 | } |
| 1795 | printf("\n"); |
| 1796 | } |
| 1797 | return(EIO); |
| 1798 | case 0xf: |
| 1799 | if(!silent)printf("cd%d: unknown error key\n", unit); |
| 1800 | return(EIO); |
| 1801 | } |
| 1802 | break; |
| 1803 | } |
| 1804 | default: |
| 1805 | { |
| 1806 | if(!silent) |
| 1807 | { |
| 1808 | printf("cd%d: error code %d", |
| 1809 | unit, |
| 1810 | sense->error_code & SSD_ERRCODE); |
| 1811 | if(sense->error_code & SSD_ERRCODE_VALID) |
| 1812 | { |
| 1813 | printf(" block no. %d (decimal)", |
| 1814 | (sense->ext.unextended.blockhi <<16) |
| 1815 | + (sense->ext.unextended.blockmed <<8) |
| 1816 | + (sense->ext.unextended.blocklow )); |
| 1817 | } |
| 1818 | printf("\n"); |
| 1819 | } |
| 1820 | } |
| 1821 | return(EIO); |
| 1822 | } |
| 1823 | } |
| 1824 | |
| 1825 | |
| 1826 | |
| 1827 | |
| 1828 | int |
| 1829 | cdsize(dev_t dev) |
| 1830 | { |
| 1831 | return (-1); |
| 1832 | } |
| 1833 | |
| 1834 | #if 0 |
| 1835 | show_mem(address,num) |
| 1836 | unsigned char *address; |
| 1837 | int num; |
| 1838 | { |
| 1839 | int x,y; |
| 1840 | printf("------------------------------"); |
| 1841 | for (y = 0; y<num; y += 1) |
| 1842 | { |
| 1843 | if(!(y % 16)) |
| 1844 | printf("\n%03d: ",y); |
| 1845 | printf("%02x ",*address++); |
| 1846 | } |
| 1847 | printf("\n------------------------------\n"); |
| 1848 | } |
| 1849 | #endif |