mscp_disk.c revision 1.41
1 /* $NetBSD: mscp_disk.c,v 1.41 2003/05/10 23:12:45 thorpej Exp $ */ 2 /* 3 * Copyright (c) 1996 Ludd, University of Lule}, Sweden. 4 * Copyright (c) 1988 Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Chris Torek. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the University of 21 * California, Berkeley and its contributors. 22 * 4. Neither the name of the University nor the names of its contributors 23 * may be used to endorse or promote products derived from this software 24 * without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 27 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 28 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 29 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 30 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 31 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 32 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 33 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 34 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 35 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 36 * SUCH DAMAGE. 37 * 38 * @(#)uda.c 7.32 (Berkeley) 2/13/91 39 */ 40 41 /* 42 * RA disk device driver 43 * RX MSCP floppy disk device driver 44 */ 45 46 /* 47 * TODO 48 * write bad block forwarding code 49 */ 50 51 #include <sys/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: mscp_disk.c,v 1.41 2003/05/10 23:12:45 thorpej Exp $"); 53 54 #include <sys/param.h> 55 #include <sys/buf.h> 56 #include <sys/device.h> 57 #include <sys/disk.h> 58 #include <sys/disklabel.h> 59 #include <sys/ioctl.h> 60 #include <sys/stat.h> 61 #include <sys/fcntl.h> 62 #include <sys/reboot.h> 63 #include <sys/proc.h> 64 #include <sys/systm.h> 65 #include <sys/conf.h> 66 67 #include <ufs/ufs/dinode.h> 68 #include <ufs/ffs/fs.h> 69 70 #include <machine/bus.h> 71 #include <machine/cpu.h> 72 73 #include <dev/mscp/mscp.h> 74 #include <dev/mscp/mscpreg.h> 75 #include <dev/mscp/mscpvar.h> 76 77 #include "locators.h" 78 #include "ioconf.h" 79 #include "ra.h" 80 81 /* 82 * Drive status, per drive 83 */ 84 struct ra_softc { 85 struct device ra_dev; /* Autoconf struct */ 86 struct disk ra_disk; 87 int ra_state; /* open/closed state */ 88 u_long ra_mediaid; /* media id */ 89 int ra_hwunit; /* Hardware unit number */ 90 int ra_havelabel; /* true if we have a label */ 91 int ra_wlabel; /* label sector is currently writable */ 92 }; 93 94 #define rx_softc ra_softc 95 96 void rxattach __P((struct device *, struct device *, void *)); 97 int rx_putonline __P((struct rx_softc *)); 98 void rrmakelabel __P((struct disklabel *, long)); 99 100 #if NRA 101 102 int ramatch __P((struct device *, struct cfdata *, void *)); 103 void raattach __P((struct device *, struct device *, void *)); 104 int ra_putonline __P((struct ra_softc *)); 105 106 CFATTACH_DECL(ra, sizeof(struct ra_softc), 107 ramatch, rxattach, NULL, NULL); 108 109 dev_type_open(raopen); 110 dev_type_close(raclose); 111 dev_type_read(raread); 112 dev_type_write(rawrite); 113 dev_type_ioctl(raioctl); 114 dev_type_strategy(rastrategy); 115 dev_type_dump(radump); 116 dev_type_size(rasize); 117 118 const struct bdevsw ra_bdevsw = { 119 raopen, raclose, rastrategy, raioctl, radump, rasize, D_DISK 120 }; 121 122 const struct cdevsw ra_cdevsw = { 123 raopen, raclose, raread, rawrite, raioctl, 124 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 125 }; 126 127 /* 128 * More driver definitions, for generic MSCP code. 129 */ 130 131 int 132 ramatch(parent, cf, aux) 133 struct device *parent; 134 struct cfdata *cf; 135 void *aux; 136 { 137 struct drive_attach_args *da = aux; 138 struct mscp *mp = da->da_mp; 139 140 if ((da->da_typ & MSCPBUS_DISK) == 0) 141 return 0; 142 if (cf->cf_loc[MSCPBUSCF_DRIVE] != MSCPBUSCF_DRIVE_DEFAULT && 143 cf->cf_loc[MSCPBUSCF_DRIVE] != mp->mscp_unit) 144 return 0; 145 /* 146 * Check if this disk is a floppy; then don't configure it. 147 * Seems to be a safe way to test it per Chris Torek. 148 */ 149 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'X' - '@') 150 return 0; 151 return 1; 152 } 153 154 /* 155 * (Try to) put the drive online. This is done the first time the 156 * drive is opened, or if it har fallen offline. 157 */ 158 int 159 ra_putonline(ra) 160 struct ra_softc *ra; 161 { 162 struct disklabel *dl; 163 const char *msg; 164 int maj; 165 166 if (rx_putonline(ra) != MSCP_DONE) 167 return MSCP_FAILED; 168 169 dl = ra->ra_disk.dk_label; 170 171 ra->ra_state = DK_RDLABEL; 172 printf("%s", ra->ra_dev.dv_xname); 173 maj = cdevsw_lookup_major(&ra_cdevsw); 174 if ((msg = readdisklabel(MAKEDISKDEV(maj, ra->ra_dev.dv_unit, 175 RAW_PART), rastrategy, dl, NULL)) != NULL) 176 printf(": %s", msg); 177 else { 178 ra->ra_havelabel = 1; 179 ra->ra_state = DK_OPEN; 180 } 181 182 printf(": size %d sectors\n", dl->d_secperunit); 183 184 return MSCP_DONE; 185 } 186 187 /* 188 * Open a drive. 189 */ 190 /*ARGSUSED*/ 191 int 192 raopen(dev, flag, fmt, p) 193 dev_t dev; 194 int flag, fmt; 195 struct proc *p; 196 { 197 struct ra_softc *ra; 198 int part, unit, mask; 199 /* 200 * Make sure this is a reasonable open request. 201 */ 202 unit = DISKUNIT(dev); 203 if (unit >= ra_cd.cd_ndevs) 204 return ENXIO; 205 ra = ra_cd.cd_devs[unit]; 206 if (ra == 0) 207 return ENXIO; 208 209 /* 210 * If this is the first open; we must first try to put 211 * the disk online (and read the label). 212 */ 213 if (ra->ra_state == DK_CLOSED) 214 if (ra_putonline(ra) == MSCP_FAILED) 215 return ENXIO; 216 217 /* If the disk has no label; allow writing everywhere */ 218 if (ra->ra_havelabel == 0) 219 ra->ra_wlabel = 1; 220 221 part = DISKPART(dev); 222 if (part >= ra->ra_disk.dk_label->d_npartitions) 223 return ENXIO; 224 225 /* 226 * Wait for the state to settle 227 */ 228 #if notyet 229 while (ra->ra_state != DK_OPEN) 230 if ((error = tsleep((caddr_t)ra, (PZERO + 1) | PCATCH, 231 devopn, 0))) { 232 splx(s); 233 return (error); 234 } 235 #endif 236 237 mask = 1 << part; 238 239 switch (fmt) { 240 case S_IFCHR: 241 ra->ra_disk.dk_copenmask |= mask; 242 break; 243 case S_IFBLK: 244 ra->ra_disk.dk_bopenmask |= mask; 245 break; 246 } 247 ra->ra_disk.dk_openmask |= mask; 248 return 0; 249 } 250 251 /* ARGSUSED */ 252 int 253 raclose(dev, flags, fmt, p) 254 dev_t dev; 255 int flags, fmt; 256 struct proc *p; 257 { 258 int unit = DISKUNIT(dev); 259 struct ra_softc *ra = ra_cd.cd_devs[unit]; 260 int mask = (1 << DISKPART(dev)); 261 262 switch (fmt) { 263 case S_IFCHR: 264 ra->ra_disk.dk_copenmask &= ~mask; 265 break; 266 case S_IFBLK: 267 ra->ra_disk.dk_bopenmask &= ~mask; 268 break; 269 } 270 ra->ra_disk.dk_openmask = 271 ra->ra_disk.dk_copenmask | ra->ra_disk.dk_bopenmask; 272 273 /* 274 * Should wait for I/O to complete on this partition even if 275 * others are open, but wait for work on blkflush(). 276 */ 277 #if notyet 278 if (ra->ra_openpart == 0) { 279 s = spluba(); 280 while (BUFQ_PEEK(&udautab[unit]) != NULL) 281 (void) tsleep(&udautab[unit], PZERO - 1, 282 "raclose", 0); 283 splx(s); 284 ra->ra_state = CLOSED; 285 ra->ra_wlabel = 0; 286 } 287 #endif 288 return (0); 289 } 290 291 /* 292 * Queue a transfer request, and if possible, hand it to the controller. 293 */ 294 void 295 rastrategy(bp) 296 struct buf *bp; 297 { 298 int unit; 299 struct ra_softc *ra; 300 int b; 301 302 /* 303 * Make sure this is a reasonable drive to use. 304 */ 305 unit = DISKUNIT(bp->b_dev); 306 if (unit > ra_cd.cd_ndevs || (ra = ra_cd.cd_devs[unit]) == NULL) { 307 bp->b_error = ENXIO; 308 bp->b_flags |= B_ERROR; 309 goto done; 310 } 311 /* 312 * If drive is open `raw' or reading label, let it at it. 313 */ 314 if (ra->ra_state == DK_RDLABEL) { 315 /* Make some statistics... /bqt */ 316 b = splbio(); 317 disk_busy(&ra->ra_disk); 318 splx(b); 319 mscp_strategy(bp, ra->ra_dev.dv_parent); 320 return; 321 } 322 323 /* If disk is not online, try to put it online */ 324 if (ra->ra_state == DK_CLOSED) 325 if (ra_putonline(ra) == MSCP_FAILED) { 326 bp->b_flags |= B_ERROR; 327 bp->b_error = EIO; 328 goto done; 329 } 330 331 /* 332 * Determine the size of the transfer, and make sure it is 333 * within the boundaries of the partition. 334 */ 335 if (bounds_check_with_label(&ra->ra_disk, bp, ra->ra_wlabel) <= 0) 336 goto done; 337 338 /* Make some statistics... /bqt */ 339 b = splbio(); 340 disk_busy(&ra->ra_disk); 341 splx(b); 342 mscp_strategy(bp, ra->ra_dev.dv_parent); 343 return; 344 345 done: 346 biodone(bp); 347 } 348 349 int 350 raread(dev, uio, flags) 351 dev_t dev; 352 struct uio *uio; 353 int flags; 354 { 355 356 return (physio(rastrategy, NULL, dev, B_READ, minphys, uio)); 357 } 358 359 int 360 rawrite(dev, uio, flags) 361 dev_t dev; 362 struct uio *uio; 363 int flags; 364 { 365 366 return (physio(rastrategy, NULL, dev, B_WRITE, minphys, uio)); 367 } 368 369 /* 370 * I/O controls. 371 */ 372 int 373 raioctl(dev, cmd, data, flag, p) 374 dev_t dev; 375 u_long cmd; 376 caddr_t data; 377 int flag; 378 struct proc *p; 379 { 380 int unit = DISKUNIT(dev); 381 struct disklabel *lp, *tp; 382 struct ra_softc *ra = ra_cd.cd_devs[unit]; 383 int error = 0; 384 #ifdef __HAVE_OLD_DISKLABEL 385 struct disklabel newlabel; 386 #endif 387 388 lp = ra->ra_disk.dk_label; 389 390 switch (cmd) { 391 392 case DIOCGDINFO: 393 bcopy(lp, data, sizeof (struct disklabel)); 394 break; 395 #ifdef __HAVE_OLD_DISKLABEL 396 case ODIOCGDINFO: 397 bcopy(lp, &newlabel, sizeof disklabel); 398 if (newlabel.d_npartitions > OLDMAXPARTITIONS) 399 return ENOTTY; 400 bcopy(&newlabel, data, sizeof (struct olddisklabel)); 401 break; 402 #endif 403 404 case DIOCGPART: 405 ((struct partinfo *)data)->disklab = lp; 406 ((struct partinfo *)data)->part = 407 &lp->d_partitions[DISKPART(dev)]; 408 break; 409 410 case DIOCWDINFO: 411 case DIOCSDINFO: 412 #ifdef __HAVE_OLD_DISKLABEL 413 case ODIOCWDINFO: 414 case ODIOCSDINFO: 415 if (cmd == ODIOCSDINFO || xfer == ODIOCWDINFO) { 416 memset(&newlabel, 0, sizeof newlabel); 417 memcpy(&newlabel, data, sizeof (struct olddisklabel)); 418 tp = &newlabel; 419 } else 420 #endif 421 tp = (struct disklabel *)data; 422 423 if ((flag & FWRITE) == 0) 424 error = EBADF; 425 else { 426 error = setdisklabel(lp, tp, 0, 0); 427 if ((error == 0) && (cmd == DIOCWDINFO 428 #ifdef __HAVE_OLD_DISKLABEL 429 || cmd == ODIOCWDINFO 430 #else 431 )) { 432 #endif 433 ra->ra_wlabel = 1; 434 error = writedisklabel(dev, rastrategy, lp,0); 435 ra->ra_wlabel = 0; 436 } 437 } 438 break; 439 440 case DIOCWLABEL: 441 if ((flag & FWRITE) == 0) 442 error = EBADF; 443 else 444 ra->ra_wlabel = 1; 445 break; 446 447 case DIOCGDEFLABEL: 448 #ifdef __HAVE_OLD_DISKLABEL 449 case ODIOCGDEFLABEL: 450 if (cmd == ODIOCGDEFLABEL) 451 tp = &newlabel; 452 else 453 #else 454 tp = (struct disklabel *)data; 455 #endif 456 bzero(tp, sizeof(struct disklabel)); 457 tp->d_secsize = lp->d_secsize; 458 tp->d_nsectors = lp->d_nsectors; 459 tp->d_ntracks = lp->d_ntracks; 460 tp->d_ncylinders = lp->d_ncylinders; 461 tp->d_secpercyl = lp->d_secpercyl; 462 tp->d_secperunit = lp->d_secperunit; 463 tp->d_type = DTYPE_MSCP; 464 tp->d_rpm = 3600; 465 rrmakelabel(tp, ra->ra_mediaid); 466 #ifdef __HAVE_OLD_DISKLABEL 467 if (cmd == ODIOCGDEFLABEL) { 468 if (tp->d_npartitions > OLDMAXPARTITIONS) 469 return ENOTTY; 470 memcpy(data, tp, sizeof (struct olddisklabel)); 471 } 472 #endif 473 break; 474 475 default: 476 error = ENOTTY; 477 break; 478 } 479 return (error); 480 } 481 482 483 int 484 radump(dev, blkno, va, size) 485 dev_t dev; 486 daddr_t blkno; 487 caddr_t va; 488 size_t size; 489 { 490 return ENXIO; 491 } 492 493 /* 494 * Return the size of a partition, if known, or -1 if not. 495 */ 496 int 497 rasize(dev) 498 dev_t dev; 499 { 500 int unit = DISKUNIT(dev); 501 struct ra_softc *ra; 502 503 if (unit >= ra_cd.cd_ndevs || ra_cd.cd_devs[unit] == 0) 504 return -1; 505 506 ra = ra_cd.cd_devs[unit]; 507 508 if (ra->ra_state == DK_CLOSED) 509 if (ra_putonline(ra) == MSCP_FAILED) 510 return -1; 511 512 return ra->ra_disk.dk_label->d_partitions[DISKPART(dev)].p_size * 513 (ra->ra_disk.dk_label->d_secsize / DEV_BSIZE); 514 } 515 516 #endif /* NRA */ 517 518 #if NRX 519 520 int rxmatch __P((struct device *, struct cfdata *, void *)); 521 522 CFATTACH_DECL(rx, sizeof(struct rx_softc), 523 rxmatch, rxattach, NULL, NULL); 524 525 dev_type_open(rxopen); 526 dev_type_read(rxread); 527 dev_type_write(rxwrite); 528 dev_type_ioctl(rxioctl); 529 dev_type_strategy(rxstrategy); 530 dev_type_dump(rxdump); 531 dev_type_size(rxsize); 532 533 const struct bdevsw rx_bdevsw = { 534 rxopen, nullclose, rxstrategy, rxioctl, rxdump, rxsize, D_DISK 535 }; 536 537 const struct cdevsw rx_cdevsw = { 538 rxopen, nullclose, rxread, rxwrite, rxioctl, 539 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 540 }; 541 542 /* 543 * More driver definitions, for generic MSCP code. 544 */ 545 546 int 547 rxmatch(parent, cf, aux) 548 struct device *parent; 549 struct cfdata *cf; 550 void *aux; 551 { 552 struct drive_attach_args *da = aux; 553 struct mscp *mp = da->da_mp; 554 555 if ((da->da_typ & MSCPBUS_DISK) == 0) 556 return 0; 557 if (cf->cf_loc[MSCPBUSCF_DRIVE] != MSCPBUSCF_DRIVE_DEFAULT && 558 cf->cf_loc[MSCPBUSCF_DRIVE] != mp->mscp_unit) 559 return 0; 560 /* 561 * Check if this disk is a floppy; then configure it. 562 * Seems to be a safe way to test it per Chris Torek. 563 */ 564 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'X' - '@') 565 return 1; 566 return 0; 567 } 568 569 #endif /* NRX */ 570 571 /* 572 * The attach routine only checks and prints drive type. 573 * Bringing the disk online is done when the disk is accessed 574 * the first time. 575 */ 576 void 577 rxattach(parent, self, aux) 578 struct device *parent, *self; 579 void *aux; 580 { 581 struct rx_softc *rx = (void *)self; 582 struct drive_attach_args *da = aux; 583 struct mscp *mp = da->da_mp; 584 struct mscp_softc *mi = (void *)parent; 585 struct disklabel *dl; 586 587 rx->ra_mediaid = mp->mscp_guse.guse_mediaid; 588 rx->ra_state = DK_CLOSED; 589 rx->ra_hwunit = mp->mscp_unit; 590 mi->mi_dp[mp->mscp_unit] = self; 591 592 rx->ra_disk.dk_name = rx->ra_dev.dv_xname; 593 disk_attach((struct disk *)&rx->ra_disk); 594 595 /* Fill in what we know. The actual size is gotten later */ 596 dl = rx->ra_disk.dk_label; 597 598 dl->d_secsize = DEV_BSIZE; 599 dl->d_nsectors = mp->mscp_guse.guse_nspt; 600 dl->d_ntracks = mp->mscp_guse.guse_ngpc * mp->mscp_guse.guse_group; 601 dl->d_secpercyl = dl->d_nsectors * dl->d_ntracks; 602 disk_printtype(mp->mscp_unit, mp->mscp_guse.guse_mediaid); 603 #ifdef DEBUG 604 printf("%s: nspt %d group %d ngpc %d rct %d nrpt %d nrct %d\n", 605 self->dv_xname, mp->mscp_guse.guse_nspt, mp->mscp_guse.guse_group, 606 mp->mscp_guse.guse_ngpc, mp->mscp_guse.guse_rctsize, 607 mp->mscp_guse.guse_nrpt, mp->mscp_guse.guse_nrct); 608 #endif 609 } 610 611 /* 612 * (Try to) put the drive online. This is done the first time the 613 * drive is opened, or if it har fallen offline. 614 */ 615 int 616 rx_putonline(rx) 617 struct rx_softc *rx; 618 { 619 struct mscp *mp; 620 struct mscp_softc *mi = (struct mscp_softc *)rx->ra_dev.dv_parent; 621 volatile int i; 622 623 rx->ra_state = DK_CLOSED; 624 mp = mscp_getcp(mi, MSCP_WAIT); 625 mp->mscp_opcode = M_OP_ONLINE; 626 mp->mscp_unit = rx->ra_hwunit; 627 mp->mscp_cmdref = 1; 628 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 629 630 /* Poll away */ 631 i = bus_space_read_2(mi->mi_iot, mi->mi_iph, 0); 632 if (tsleep(&rx->ra_dev.dv_unit, PRIBIO, "rxonline", 100*100)) 633 rx->ra_state = DK_CLOSED; 634 635 if (rx->ra_state == DK_CLOSED) 636 return MSCP_FAILED; 637 638 return MSCP_DONE; 639 } 640 641 #if NRX 642 643 /* 644 * Open a drive. 645 */ 646 /*ARGSUSED*/ 647 int 648 rxopen(dev, flag, fmt, p) 649 dev_t dev; 650 int flag, fmt; 651 struct proc *p; 652 { 653 struct rx_softc *rx; 654 int unit; 655 656 /* 657 * Make sure this is a reasonable open request. 658 */ 659 unit = DISKUNIT(dev); 660 if (unit >= rx_cd.cd_ndevs) 661 return ENXIO; 662 rx = rx_cd.cd_devs[unit]; 663 if (rx == 0) 664 return ENXIO; 665 666 /* 667 * If this is the first open; we must first try to put 668 * the disk online (and read the label). 669 */ 670 if (rx->ra_state == DK_CLOSED) 671 if (rx_putonline(rx) == MSCP_FAILED) 672 return ENXIO; 673 674 return 0; 675 } 676 677 /* 678 * Queue a transfer request, and if possible, hand it to the controller. 679 * 680 * This routine is broken into two so that the internal version 681 * udastrat1() can be called by the (nonexistent, as yet) bad block 682 * revectoring routine. 683 */ 684 void 685 rxstrategy(bp) 686 struct buf *bp; 687 { 688 int unit; 689 struct rx_softc *rx; 690 int b; 691 692 /* 693 * Make sure this is a reasonable drive to use. 694 */ 695 unit = DISKUNIT(bp->b_dev); 696 if (unit > rx_cd.cd_ndevs || (rx = rx_cd.cd_devs[unit]) == NULL) { 697 bp->b_error = ENXIO; 698 bp->b_flags |= B_ERROR; 699 goto done; 700 } 701 702 /* If disk is not online, try to put it online */ 703 if (rx->ra_state == DK_CLOSED) 704 if (rx_putonline(rx) == MSCP_FAILED) { 705 bp->b_flags |= B_ERROR; 706 bp->b_error = EIO; 707 goto done; 708 } 709 710 /* 711 * Determine the size of the transfer, and make sure it is 712 * within the boundaries of the partition. 713 */ 714 if (bp->b_blkno >= rx->ra_disk.dk_label->d_secperunit) { 715 bp->b_resid = bp->b_bcount; 716 goto done; 717 } 718 719 /* Make some statistics... /bqt */ 720 b = splbio(); 721 disk_busy(&rx->ra_disk); 722 splx(b); 723 mscp_strategy(bp, rx->ra_dev.dv_parent); 724 return; 725 726 done: 727 biodone(bp); 728 } 729 730 int 731 rxread(dev, uio, flag) 732 dev_t dev; 733 struct uio *uio; 734 int flag; 735 { 736 737 return (physio(rxstrategy, NULL, dev, B_READ, minphys, uio)); 738 } 739 740 int 741 rxwrite(dev, uio, flag) 742 dev_t dev; 743 struct uio *uio; 744 int flag; 745 { 746 747 return (physio(rxstrategy, NULL, dev, B_WRITE, minphys, uio)); 748 } 749 750 /* 751 * I/O controls. 752 */ 753 int 754 rxioctl(dev, cmd, data, flag, p) 755 dev_t dev; 756 u_long cmd; 757 caddr_t data; 758 int flag; 759 struct proc *p; 760 { 761 int unit = DISKUNIT(dev); 762 struct disklabel *lp; 763 struct rx_softc *rx = rx_cd.cd_devs[unit]; 764 int error = 0; 765 766 lp = rx->ra_disk.dk_label; 767 768 switch (cmd) { 769 770 case DIOCGDINFO: 771 bcopy(lp, data, sizeof (struct disklabel)); 772 break; 773 774 case DIOCGPART: 775 ((struct partinfo *)data)->disklab = lp; 776 ((struct partinfo *)data)->part = 777 &lp->d_partitions[DISKPART(dev)]; 778 break; 779 780 781 case DIOCWDINFO: 782 case DIOCSDINFO: 783 case DIOCWLABEL: 784 break; 785 786 default: 787 error = ENOTTY; 788 break; 789 } 790 return (error); 791 } 792 793 int 794 rxdump(dev, blkno, va, size) 795 dev_t dev; 796 daddr_t blkno; 797 caddr_t va; 798 size_t size; 799 { 800 801 /* Not likely. */ 802 return ENXIO; 803 } 804 805 int 806 rxsize(dev) 807 dev_t dev; 808 { 809 810 return -1; 811 } 812 813 #endif /* NRX */ 814 815 void rrdgram __P((struct device *, struct mscp *, struct mscp_softc *)); 816 void rriodone __P((struct device *, struct buf *)); 817 int rronline __P((struct device *, struct mscp *)); 818 int rrgotstatus __P((struct device *, struct mscp *)); 819 void rrreplace __P((struct device *, struct mscp *)); 820 int rrioerror __P((struct device *, struct mscp *, struct buf *)); 821 void rrfillin __P((struct buf *, struct mscp *)); 822 void rrbb __P((struct device *, struct mscp *, struct buf *)); 823 824 825 struct mscp_device ra_device = { 826 rrdgram, 827 rriodone, 828 rronline, 829 rrgotstatus, 830 rrreplace, 831 rrioerror, 832 rrbb, 833 rrfillin, 834 }; 835 836 /* 837 * Handle an error datagram. 838 * This can come from an unconfigured drive as well. 839 */ 840 void 841 rrdgram(usc, mp, mi) 842 struct device *usc; 843 struct mscp *mp; 844 struct mscp_softc *mi; 845 { 846 if (mscp_decodeerror(usc == NULL?"unconf disk" : usc->dv_xname, mp, mi)) 847 return; 848 /* 849 * SDI status information bytes 10 and 11 are the microprocessor 850 * error code and front panel code respectively. These vary per 851 * drive type and are printed purely for field service information. 852 */ 853 if (mp->mscp_format == M_FM_SDI) 854 printf("\tsdi uproc error code 0x%x, front panel code 0x%x\n", 855 mp->mscp_erd.erd_sdistat[10], 856 mp->mscp_erd.erd_sdistat[11]); 857 } 858 859 void 860 rriodone(usc, bp) 861 struct device *usc; 862 struct buf *bp; 863 { 864 struct ra_softc *ra; 865 int unit; 866 867 /* We assume that this is a reasonable drive. ra_strategy should 868 already have verified it. Thus, no checks here... /bqt */ 869 unit = DISKUNIT(bp->b_dev); 870 ra = ra_cd.cd_devs[unit]; 871 disk_unbusy(&ra->ra_disk, bp->b_bcount, (bp->b_flags & B_READ)); 872 873 biodone(bp); 874 } 875 876 /* 877 * A drive came on line. Check its type and size. Return DONE if 878 * we think the drive is truly on line. In any case, awaken anyone 879 * sleeping on the drive on-line-ness. 880 */ 881 int 882 rronline(usc, mp) 883 struct device *usc; 884 struct mscp *mp; 885 { 886 struct rx_softc *rx = (struct rx_softc *)usc; 887 struct disklabel *dl; 888 889 wakeup((caddr_t)&usc->dv_unit); 890 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 891 printf("%s: attempt to bring on line failed: ", usc->dv_xname); 892 mscp_printevent(mp); 893 return (MSCP_FAILED); 894 } 895 896 rx->ra_state = DK_OPEN; 897 898 dl = rx->ra_disk.dk_label; 899 dl->d_secperunit = (daddr_t)mp->mscp_onle.onle_unitsize; 900 901 if (dl->d_secpercyl) { 902 dl->d_ncylinders = dl->d_secperunit/dl->d_secpercyl; 903 dl->d_type = DTYPE_MSCP; 904 dl->d_rpm = 3600; 905 } else { 906 dl->d_type = DTYPE_FLOPPY; 907 dl->d_rpm = 300; 908 } 909 rrmakelabel(dl, rx->ra_mediaid); 910 911 return (MSCP_DONE); 912 } 913 914 void 915 rrmakelabel(dl, type) 916 struct disklabel *dl; 917 long type; 918 { 919 int n, p = 0; 920 921 dl->d_bbsize = BBSIZE; 922 dl->d_sbsize = SBLOCKSIZE; 923 924 /* Create the disk name for disklabel. Phew... */ 925 dl->d_typename[p++] = MSCP_MID_CHAR(2, type); 926 dl->d_typename[p++] = MSCP_MID_CHAR(1, type); 927 if (MSCP_MID_ECH(0, type)) 928 dl->d_typename[p++] = MSCP_MID_CHAR(0, type); 929 n = MSCP_MID_NUM(type); 930 if (n > 99) { 931 dl->d_typename[p++] = '1'; 932 n -= 100; 933 } 934 if (n > 9) { 935 dl->d_typename[p++] = (n / 10) + '0'; 936 n %= 10; 937 } 938 dl->d_typename[p++] = n + '0'; 939 dl->d_typename[p] = 0; 940 dl->d_npartitions = MAXPARTITIONS; 941 dl->d_partitions[0].p_size = dl->d_partitions[2].p_size = 942 dl->d_secperunit; 943 dl->d_partitions[0].p_offset = dl->d_partitions[2].p_offset = 0; 944 dl->d_interleave = dl->d_headswitch = 1; 945 dl->d_magic = dl->d_magic2 = DISKMAGIC; 946 dl->d_checksum = dkcksum(dl); 947 } 948 949 /* 950 * We got some (configured) unit's status. Return DONE if it succeeded. 951 */ 952 int 953 rrgotstatus(usc, mp) 954 struct device *usc; 955 struct mscp *mp; 956 { 957 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 958 printf("%s: attempt to get status failed: ", usc->dv_xname); 959 mscp_printevent(mp); 960 return (MSCP_FAILED); 961 } 962 /* record for (future) bad block forwarding and whatever else */ 963 #ifdef notyet 964 uda_rasave(ui->ui_unit, mp, 1); 965 #endif 966 return (MSCP_DONE); 967 } 968 969 /* 970 * A replace operation finished. 971 */ 972 /*ARGSUSED*/ 973 void 974 rrreplace(usc, mp) 975 struct device *usc; 976 struct mscp *mp; 977 { 978 979 panic("udareplace"); 980 } 981 982 /* 983 * A transfer failed. We get a chance to fix or restart it. 984 * Need to write the bad block forwaring code first.... 985 */ 986 /*ARGSUSED*/ 987 int 988 rrioerror(usc, mp, bp) 989 struct device *usc; 990 struct mscp *mp; 991 struct buf *bp; 992 { 993 struct ra_softc *ra = (void *)usc; 994 int code = mp->mscp_event; 995 996 switch (code & M_ST_MASK) { 997 /* The unit has fallen offline. Try to figure out why. */ 998 case M_ST_OFFLINE: 999 bp->b_flags |= B_ERROR; 1000 bp->b_error = EIO; 1001 ra->ra_state = DK_CLOSED; 1002 if (code & M_OFFLINE_UNMOUNTED) 1003 printf("%s: not mounted/spun down\n", usc->dv_xname); 1004 if (code & M_OFFLINE_DUPLICATE) 1005 printf("%s: duplicate unit number!!!\n", usc->dv_xname); 1006 return MSCP_DONE; 1007 1008 case M_ST_AVAILABLE: 1009 ra->ra_state = DK_CLOSED; /* Force another online */ 1010 return MSCP_DONE; 1011 1012 default: 1013 printf("%s:", usc->dv_xname); 1014 break; 1015 } 1016 return (MSCP_FAILED); 1017 } 1018 1019 /* 1020 * Fill in disk addresses in a mscp packet waiting for transfer. 1021 */ 1022 void 1023 rrfillin(bp, mp) 1024 struct buf *bp; 1025 struct mscp *mp; 1026 { 1027 struct rx_softc *rx = 0; /* Wall */ 1028 struct disklabel *lp; 1029 int unit = DISKUNIT(bp->b_dev); 1030 int part = DISKPART(bp->b_dev); 1031 1032 #if NRA 1033 if (cdevsw_lookup(bp->b_dev) == &ra_cdevsw) 1034 rx = ra_cd.cd_devs[unit]; 1035 #endif 1036 #if NRX 1037 if (cdevsw_lookup(bp->b_dev) == &rx_cdevsw) 1038 rx = rx_cd.cd_devs[unit]; 1039 #endif 1040 lp = rx->ra_disk.dk_label; 1041 1042 mp->mscp_seq.seq_lbn = lp->d_partitions[part].p_offset + bp->b_blkno; 1043 mp->mscp_unit = rx->ra_hwunit; 1044 mp->mscp_seq.seq_bytecount = bp->b_bcount; 1045 } 1046 1047 /* 1048 * A bad block related operation finished. 1049 */ 1050 /*ARGSUSED*/ 1051 void 1052 rrbb(usc, mp, bp) 1053 struct device *usc; 1054 struct mscp *mp; 1055 struct buf *bp; 1056 { 1057 1058 panic("udabb"); 1059 } 1060
Indexes created Tue Sep 30 11:09:46 GMT 2025