mscp_disk.c revision 1.30
1 /* $NetBSD: mscp_disk.c,v 1.30 2001/11/13 07:38:28 lukem 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 1.30 2001/11/13 07:38:28 lukem 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 66 #include <ufs/ufs/dinode.h> 67 #include <ufs/ffs/fs.h> 68 69 #include <machine/bus.h> 70 #include <machine/cpu.h> 71 72 #include <dev/mscp/mscp.h> 73 #include <dev/mscp/mscpreg.h> 74 #include <dev/mscp/mscpvar.h> 75 76 #include "locators.h" 77 #include "ioconf.h" 78 #include "ra.h" 79 80 #define RAMAJOR 9 /* RA major device number XXX */ 81 82 /* 83 * Drive status, per drive 84 */ 85 struct ra_softc { 86 struct device ra_dev; /* Autoconf struct */ 87 struct disk ra_disk; 88 int ra_state; /* open/closed state */ 89 u_long ra_mediaid; /* media id */ 90 int ra_hwunit; /* Hardware unit number */ 91 int ra_havelabel; /* true if we have a label */ 92 int ra_wlabel; /* label sector is currently writable */ 93 }; 94 95 #define rx_softc ra_softc 96 97 void rxattach __P((struct device *, struct device *, void *)); 98 int rx_putonline __P((struct rx_softc *)); 99 void rrmakelabel __P((struct disklabel *, long)); 100 101 #if NRA 102 103 int ramatch __P((struct device *, struct cfdata *, void *)); 104 void raattach __P((struct device *, struct device *, void *)); 105 int raopen __P((dev_t, int, int, struct proc *)); 106 int raclose __P((dev_t, int, int, struct proc *)); 107 void rastrategy __P((struct buf *)); 108 int raread __P((dev_t, struct uio *)); 109 int rawrite __P((dev_t, struct uio *)); 110 int raioctl __P((dev_t, int, caddr_t, int, struct proc *)); 111 int radump __P((dev_t, daddr_t, caddr_t, size_t)); 112 int rasize __P((dev_t)); 113 int ra_putonline __P((struct ra_softc *)); 114 115 struct cfattach ra_ca = { 116 sizeof(struct ra_softc), ramatch, rxattach 117 }; 118 119 /* 120 * More driver definitions, for generic MSCP code. 121 */ 122 123 int 124 ramatch(parent, cf, aux) 125 struct device *parent; 126 struct cfdata *cf; 127 void *aux; 128 { 129 struct drive_attach_args *da = aux; 130 struct mscp *mp = da->da_mp; 131 132 if ((da->da_typ & MSCPBUS_DISK) == 0) 133 return 0; 134 if (cf->cf_loc[MSCPBUSCF_DRIVE] != MSCPBUSCF_DRIVE_DEFAULT && 135 cf->cf_loc[MSCPBUSCF_DRIVE] != mp->mscp_unit) 136 return 0; 137 /* 138 * Check if this disk is a floppy; then don't configure it. 139 * Seems to be a safe way to test it per Chris Torek. 140 */ 141 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'X' - '@') 142 return 0; 143 return 1; 144 } 145 146 /* 147 * (Try to) put the drive online. This is done the first time the 148 * drive is opened, or if it har fallen offline. 149 */ 150 int 151 ra_putonline(ra) 152 struct ra_softc *ra; 153 { 154 struct disklabel *dl; 155 char *msg; 156 157 if (rx_putonline(ra) != MSCP_DONE) 158 return MSCP_FAILED; 159 160 dl = ra->ra_disk.dk_label; 161 162 ra->ra_state = DK_RDLABEL; 163 printf("%s", ra->ra_dev.dv_xname); 164 if ((msg = readdisklabel(MAKEDISKDEV(RAMAJOR, ra->ra_dev.dv_unit, 165 RAW_PART), rastrategy, dl, NULL)) != NULL) 166 printf(": %s", msg); 167 else { 168 ra->ra_havelabel = 1; 169 ra->ra_state = DK_OPEN; 170 } 171 172 printf(": size %d sectors\n", dl->d_secperunit); 173 174 return MSCP_DONE; 175 } 176 177 /* 178 * Open a drive. 179 */ 180 /*ARGSUSED*/ 181 int 182 raopen(dev, flag, fmt, p) 183 dev_t dev; 184 int flag, fmt; 185 struct proc *p; 186 { 187 struct ra_softc *ra; 188 int part, unit, mask; 189 /* 190 * Make sure this is a reasonable open request. 191 */ 192 unit = DISKUNIT(dev); 193 if (unit >= ra_cd.cd_ndevs) 194 return ENXIO; 195 ra = ra_cd.cd_devs[unit]; 196 if (ra == 0) 197 return ENXIO; 198 199 /* 200 * If this is the first open; we must first try to put 201 * the disk online (and read the label). 202 */ 203 if (ra->ra_state == DK_CLOSED) 204 if (ra_putonline(ra) == MSCP_FAILED) 205 return ENXIO; 206 207 /* If the disk has no label; allow writing everywhere */ 208 if (ra->ra_havelabel == 0) 209 ra->ra_wlabel = 1; 210 211 part = DISKPART(dev); 212 if (part >= ra->ra_disk.dk_label->d_npartitions) 213 return ENXIO; 214 215 /* 216 * Wait for the state to settle 217 */ 218 #if notyet 219 while (ra->ra_state != DK_OPEN) 220 if ((error = tsleep((caddr_t)ra, (PZERO + 1) | PCATCH, 221 devopn, 0))) { 222 splx(s); 223 return (error); 224 } 225 #endif 226 227 mask = 1 << part; 228 229 switch (fmt) { 230 case S_IFCHR: 231 ra->ra_disk.dk_copenmask |= mask; 232 break; 233 case S_IFBLK: 234 ra->ra_disk.dk_bopenmask |= mask; 235 break; 236 } 237 ra->ra_disk.dk_openmask |= mask; 238 return 0; 239 } 240 241 /* ARGSUSED */ 242 int 243 raclose(dev, flags, fmt, p) 244 dev_t dev; 245 int flags, fmt; 246 struct proc *p; 247 { 248 int unit = DISKUNIT(dev); 249 struct ra_softc *ra = ra_cd.cd_devs[unit]; 250 int mask = (1 << DISKPART(dev)); 251 252 switch (fmt) { 253 case S_IFCHR: 254 ra->ra_disk.dk_copenmask &= ~mask; 255 break; 256 case S_IFBLK: 257 ra->ra_disk.dk_bopenmask &= ~mask; 258 break; 259 } 260 ra->ra_disk.dk_openmask = 261 ra->ra_disk.dk_copenmask | ra->ra_disk.dk_bopenmask; 262 263 /* 264 * Should wait for I/O to complete on this partition even if 265 * others are open, but wait for work on blkflush(). 266 */ 267 #if notyet 268 if (ra->ra_openpart == 0) { 269 s = spluba(); 270 while (BUFQ_FIRST(&udautab[unit]) != NULL) 271 (void) tsleep(&udautab[unit], PZERO - 1, 272 "raclose", 0); 273 splx(s); 274 ra->ra_state = CLOSED; 275 ra->ra_wlabel = 0; 276 } 277 #endif 278 return (0); 279 } 280 281 /* 282 * Queue a transfer request, and if possible, hand it to the controller. 283 */ 284 void 285 rastrategy(bp) 286 struct buf *bp; 287 { 288 int unit; 289 struct ra_softc *ra; 290 /* 291 * Make sure this is a reasonable drive to use. 292 */ 293 unit = DISKUNIT(bp->b_dev); 294 if (unit > ra_cd.cd_ndevs || (ra = ra_cd.cd_devs[unit]) == NULL) { 295 bp->b_error = ENXIO; 296 bp->b_flags |= B_ERROR; 297 goto done; 298 } 299 /* 300 * If drive is open `raw' or reading label, let it at it. 301 */ 302 if (ra->ra_state == DK_RDLABEL) { 303 mscp_strategy(bp, ra->ra_dev.dv_parent); 304 return; 305 } 306 307 /* If disk is not online, try to put it online */ 308 if (ra->ra_state == DK_CLOSED) 309 if (ra_putonline(ra) == MSCP_FAILED) { 310 bp->b_flags |= B_ERROR; 311 bp->b_error = EIO; 312 goto done; 313 } 314 315 /* 316 * Determine the size of the transfer, and make sure it is 317 * within the boundaries of the partition. 318 */ 319 if (bounds_check_with_label(bp, ra->ra_disk.dk_label, 320 ra->ra_wlabel) <= 0) 321 goto done; 322 323 /* Make some statistics... /bqt */ 324 ra->ra_disk.dk_xfer++; 325 ra->ra_disk.dk_bytes += bp->b_bcount; 326 mscp_strategy(bp, ra->ra_dev.dv_parent); 327 return; 328 329 done: 330 biodone(bp); 331 } 332 333 int 334 raread(dev, uio) 335 dev_t dev; 336 struct uio *uio; 337 { 338 339 return (physio(rastrategy, NULL, dev, B_READ, minphys, uio)); 340 } 341 342 int 343 rawrite(dev, uio) 344 dev_t dev; 345 struct uio *uio; 346 { 347 348 return (physio(rastrategy, NULL, dev, B_WRITE, minphys, uio)); 349 } 350 351 /* 352 * I/O controls. 353 */ 354 int 355 raioctl(dev, cmd, data, flag, p) 356 dev_t dev; 357 int cmd; 358 caddr_t data; 359 int flag; 360 struct proc *p; 361 { 362 int unit = DISKUNIT(dev); 363 struct disklabel *lp, *tp; 364 struct ra_softc *ra = ra_cd.cd_devs[unit]; 365 int error = 0; 366 #ifdef __HAVE_OLD_DISKLABEL 367 struct disklabel newlabel; 368 #endif 369 370 lp = ra->ra_disk.dk_label; 371 372 switch (cmd) { 373 374 case DIOCGDINFO: 375 bcopy(lp, data, sizeof (struct disklabel)); 376 break; 377 #ifdef __HAVE_OLD_DISKLABEL 378 case ODIOCGDINFO: 379 bcopy(lp, &newlabel, sizeof disklabel); 380 if (newlabel.d_npartitions > OLDMAXPARTITIONS) 381 return ENOTTY; 382 bcopy(&newlabel, data, sizeof (struct olddisklabel)); 383 break; 384 #endif 385 386 case DIOCGPART: 387 ((struct partinfo *)data)->disklab = lp; 388 ((struct partinfo *)data)->part = 389 &lp->d_partitions[DISKPART(dev)]; 390 break; 391 392 case DIOCWDINFO: 393 case DIOCSDINFO: 394 #ifdef __HAVE_OLD_DISKLABEL 395 case ODIOCWDINFO: 396 case ODIOCSDINFO: 397 if (cmd == ODIOCSDINFO || xfer == ODIOCWDINFO) { 398 memset(&newlabel, 0, sizeof newlabel); 399 memcpy(&newlabel, data, sizeof (struct olddisklabel)); 400 tp = &newlabel; 401 } else 402 #endif 403 tp = (struct disklabel *)data; 404 405 if ((flag & FWRITE) == 0) 406 error = EBADF; 407 else { 408 error = setdisklabel(lp, tp, 0, 0); 409 if ((error == 0) && (cmd == DIOCWDINFO 410 #ifdef __HAVE_OLD_DISKLABEL 411 || cmd == ODIOCWDINFO 412 #else 413 )) { 414 #endif 415 ra->ra_wlabel = 1; 416 error = writedisklabel(dev, rastrategy, lp,0); 417 ra->ra_wlabel = 0; 418 } 419 } 420 break; 421 422 case DIOCWLABEL: 423 if ((flag & FWRITE) == 0) 424 error = EBADF; 425 else 426 ra->ra_wlabel = 1; 427 break; 428 429 case DIOCGDEFLABEL: 430 #ifdef __HAVE_OLD_DISKLABEL 431 case ODIOCGDEFLABEL: 432 if (cmd == ODIOCGDEFLABEL) 433 tp = &newlabel; 434 else 435 #else 436 tp = (struct disklabel *)data; 437 #endif 438 bzero(tp, sizeof(struct disklabel)); 439 tp->d_secsize = lp->d_secsize; 440 tp->d_nsectors = lp->d_nsectors; 441 tp->d_ntracks = lp->d_ntracks; 442 tp->d_ncylinders = lp->d_ncylinders; 443 tp->d_secpercyl = lp->d_secpercyl; 444 tp->d_secperunit = lp->d_secperunit; 445 tp->d_type = DTYPE_MSCP; 446 tp->d_rpm = 3600; 447 rrmakelabel(tp, ra->ra_mediaid); 448 #ifdef __HAVE_OLD_DISKLABEL 449 if (cmd == ODIOCGDEFLABEL) { 450 if (tp->d_npartitions > OLDMAXPARTITIONS) 451 return ENOTTY; 452 memcpy(data, tp, sizeof (struct olddisklabel)); 453 } 454 #endif 455 break; 456 457 default: 458 error = ENOTTY; 459 break; 460 } 461 return (error); 462 } 463 464 465 int 466 radump(dev, blkno, va, size) 467 dev_t dev; 468 daddr_t blkno; 469 caddr_t va; 470 size_t size; 471 { 472 return ENXIO; 473 } 474 475 /* 476 * Return the size of a partition, if known, or -1 if not. 477 */ 478 int 479 rasize(dev) 480 dev_t dev; 481 { 482 int unit = DISKUNIT(dev); 483 struct ra_softc *ra; 484 485 if (unit >= ra_cd.cd_ndevs || ra_cd.cd_devs[unit] == 0) 486 return -1; 487 488 ra = ra_cd.cd_devs[unit]; 489 490 if (ra->ra_state == DK_CLOSED) 491 if (ra_putonline(ra) == MSCP_FAILED) 492 return -1; 493 494 return ra->ra_disk.dk_label->d_partitions[DISKPART(dev)].p_size * 495 (ra->ra_disk.dk_label->d_secsize / DEV_BSIZE); 496 } 497 498 #endif /* NRA */ 499 500 #if NRX 501 502 int rxmatch __P((struct device *, struct cfdata *, void *)); 503 int rxopen __P((dev_t, int, int, struct proc *)); 504 int rxclose __P((dev_t, int, int, struct proc *)); 505 void rxstrategy __P((struct buf *)); 506 int rxread __P((dev_t, struct uio *)); 507 int rxwrite __P((dev_t, struct uio *)); 508 int rxioctl __P((dev_t, int, caddr_t, int, struct proc *)); 509 int rxdump __P((dev_t, daddr_t, caddr_t, size_t)); 510 int rxsize __P((dev_t)); 511 512 struct cfattach rx_ca = { 513 sizeof(struct rx_softc), rxmatch, rxattach 514 }; 515 516 /* 517 * More driver definitions, for generic MSCP code. 518 */ 519 520 int 521 rxmatch(parent, cf, aux) 522 struct device *parent; 523 struct cfdata *cf; 524 void *aux; 525 { 526 struct drive_attach_args *da = aux; 527 struct mscp *mp = da->da_mp; 528 529 if ((da->da_typ & MSCPBUS_DISK) == 0) 530 return 0; 531 if (cf->cf_loc[MSCPBUSCF_DRIVE] != MSCPBUSCF_DRIVE_DEFAULT && 532 cf->cf_loc[MSCPBUSCF_DRIVE] != mp->mscp_unit) 533 return 0; 534 /* 535 * Check if this disk is a floppy; then configure it. 536 * Seems to be a safe way to test it per Chris Torek. 537 */ 538 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'X' - '@') 539 return 1; 540 return 0; 541 } 542 543 #endif /* NRX */ 544 545 /* 546 * The attach routine only checks and prints drive type. 547 * Bringing the disk online is done when the disk is accessed 548 * the first time. 549 */ 550 void 551 rxattach(parent, self, aux) 552 struct device *parent, *self; 553 void *aux; 554 { 555 struct rx_softc *rx = (void *)self; 556 struct drive_attach_args *da = aux; 557 struct mscp *mp = da->da_mp; 558 struct mscp_softc *mi = (void *)parent; 559 struct disklabel *dl; 560 561 rx->ra_mediaid = mp->mscp_guse.guse_mediaid; 562 rx->ra_state = DK_CLOSED; 563 rx->ra_hwunit = mp->mscp_unit; 564 mi->mi_dp[mp->mscp_unit] = self; 565 566 rx->ra_disk.dk_name = rx->ra_dev.dv_xname; 567 disk_attach((struct disk *)&rx->ra_disk); 568 569 /* Fill in what we know. The actual size is gotten later */ 570 dl = rx->ra_disk.dk_label; 571 572 dl->d_secsize = DEV_BSIZE; 573 dl->d_nsectors = mp->mscp_guse.guse_nspt; 574 dl->d_ntracks = mp->mscp_guse.guse_ngpc * mp->mscp_guse.guse_group; 575 dl->d_secpercyl = dl->d_nsectors * dl->d_ntracks; 576 disk_printtype(mp->mscp_unit, mp->mscp_guse.guse_mediaid); 577 #ifdef DEBUG 578 printf("%s: nspt %d group %d ngpc %d rct %d nrpt %d nrct %d\n", 579 self->dv_xname, mp->mscp_guse.guse_nspt, mp->mscp_guse.guse_group, 580 mp->mscp_guse.guse_ngpc, mp->mscp_guse.guse_rctsize, 581 mp->mscp_guse.guse_nrpt, mp->mscp_guse.guse_nrct); 582 #endif 583 } 584 585 /* 586 * (Try to) put the drive online. This is done the first time the 587 * drive is opened, or if it har fallen offline. 588 */ 589 int 590 rx_putonline(rx) 591 struct rx_softc *rx; 592 { 593 struct mscp *mp; 594 struct mscp_softc *mi = (struct mscp_softc *)rx->ra_dev.dv_parent; 595 volatile int i; 596 597 rx->ra_state = DK_CLOSED; 598 mp = mscp_getcp(mi, MSCP_WAIT); 599 mp->mscp_opcode = M_OP_ONLINE; 600 mp->mscp_unit = rx->ra_hwunit; 601 mp->mscp_cmdref = 1; 602 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 603 604 /* Poll away */ 605 i = bus_space_read_2(mi->mi_iot, mi->mi_iph, 0); 606 if (tsleep(&rx->ra_dev.dv_unit, PRIBIO, "rxonline", 100*100)) 607 rx->ra_state = DK_CLOSED; 608 609 if (rx->ra_state == DK_CLOSED) 610 return MSCP_FAILED; 611 612 return MSCP_DONE; 613 } 614 615 #if NRX 616 617 /* 618 * Open a drive. 619 */ 620 /*ARGSUSED*/ 621 int 622 rxopen(dev, flag, fmt, p) 623 dev_t dev; 624 int flag, fmt; 625 struct proc *p; 626 { 627 struct rx_softc *rx; 628 int unit; 629 630 /* 631 * Make sure this is a reasonable open request. 632 */ 633 unit = DISKUNIT(dev); 634 if (unit >= rx_cd.cd_ndevs) 635 return ENXIO; 636 rx = rx_cd.cd_devs[unit]; 637 if (rx == 0) 638 return ENXIO; 639 640 /* 641 * If this is the first open; we must first try to put 642 * the disk online (and read the label). 643 */ 644 if (rx->ra_state == DK_CLOSED) 645 if (rx_putonline(rx) == MSCP_FAILED) 646 return ENXIO; 647 648 return 0; 649 } 650 651 /* ARGSUSED */ 652 int 653 rxclose(dev, flags, fmt, p) 654 dev_t dev; 655 int flags, fmt; 656 struct proc *p; 657 { 658 return (0); 659 } 660 661 /* 662 * Queue a transfer request, and if possible, hand it to the controller. 663 * 664 * This routine is broken into two so that the internal version 665 * udastrat1() can be called by the (nonexistent, as yet) bad block 666 * revectoring routine. 667 */ 668 void 669 rxstrategy(bp) 670 struct buf *bp; 671 { 672 int unit; 673 struct rx_softc *rx; 674 675 /* 676 * Make sure this is a reasonable drive to use. 677 */ 678 unit = DISKUNIT(bp->b_dev); 679 if (unit > rx_cd.cd_ndevs || (rx = rx_cd.cd_devs[unit]) == NULL) { 680 bp->b_error = ENXIO; 681 bp->b_flags |= B_ERROR; 682 goto done; 683 } 684 685 /* If disk is not online, try to put it online */ 686 if (rx->ra_state == DK_CLOSED) 687 if (rx_putonline(rx) == MSCP_FAILED) { 688 bp->b_flags |= B_ERROR; 689 bp->b_error = EIO; 690 goto done; 691 } 692 693 /* 694 * Determine the size of the transfer, and make sure it is 695 * within the boundaries of the partition. 696 */ 697 if (bp->b_blkno >= rx->ra_disk.dk_label->d_secperunit) { 698 bp->b_resid = bp->b_bcount; 699 goto done; 700 } 701 702 /* Make some statistics... /bqt */ 703 rx->ra_disk.dk_xfer++; 704 rx->ra_disk.dk_bytes += bp->b_bcount; 705 mscp_strategy(bp, rx->ra_dev.dv_parent); 706 return; 707 708 done: 709 biodone(bp); 710 } 711 712 int 713 rxread(dev, uio) 714 dev_t dev; 715 struct uio *uio; 716 { 717 718 return (physio(rxstrategy, NULL, dev, B_READ, minphys, uio)); 719 } 720 721 int 722 rxwrite(dev, uio) 723 dev_t dev; 724 struct uio *uio; 725 { 726 727 return (physio(rxstrategy, NULL, dev, B_WRITE, minphys, uio)); 728 } 729 730 /* 731 * I/O controls. 732 */ 733 int 734 rxioctl(dev, cmd, data, flag, p) 735 dev_t dev; 736 int cmd; 737 caddr_t data; 738 int flag; 739 struct proc *p; 740 { 741 int unit = DISKUNIT(dev); 742 struct disklabel *lp; 743 struct rx_softc *rx = rx_cd.cd_devs[unit]; 744 int error = 0; 745 746 lp = rx->ra_disk.dk_label; 747 748 switch (cmd) { 749 750 case DIOCGDINFO: 751 bcopy(lp, data, sizeof (struct disklabel)); 752 break; 753 754 case DIOCGPART: 755 ((struct partinfo *)data)->disklab = lp; 756 ((struct partinfo *)data)->part = 757 &lp->d_partitions[DISKPART(dev)]; 758 break; 759 760 761 case DIOCWDINFO: 762 case DIOCSDINFO: 763 case DIOCWLABEL: 764 break; 765 766 default: 767 error = ENOTTY; 768 break; 769 } 770 return (error); 771 } 772 773 int 774 rxdump(dev, blkno, va, size) 775 dev_t dev; 776 daddr_t blkno; 777 caddr_t va; 778 size_t size; 779 { 780 781 /* Not likely. */ 782 return ENXIO; 783 } 784 785 int 786 rxsize(dev) 787 dev_t dev; 788 { 789 790 return -1; 791 } 792 793 #endif /* NRX */ 794 795 void rrdgram __P((struct device *, struct mscp *, struct mscp_softc *)); 796 void rriodone __P((struct device *, struct buf *)); 797 int rronline __P((struct device *, struct mscp *)); 798 int rrgotstatus __P((struct device *, struct mscp *)); 799 void rrreplace __P((struct device *, struct mscp *)); 800 int rrioerror __P((struct device *, struct mscp *, struct buf *)); 801 void rrfillin __P((struct buf *, struct mscp *)); 802 void rrbb __P((struct device *, struct mscp *, struct buf *)); 803 804 805 struct mscp_device ra_device = { 806 rrdgram, 807 rriodone, 808 rronline, 809 rrgotstatus, 810 rrreplace, 811 rrioerror, 812 rrbb, 813 rrfillin, 814 }; 815 816 /* 817 * Handle an error datagram. 818 * This can come from an unconfigured drive as well. 819 */ 820 void 821 rrdgram(usc, mp, mi) 822 struct device *usc; 823 struct mscp *mp; 824 struct mscp_softc *mi; 825 { 826 if (mscp_decodeerror(usc == NULL?"unconf disk" : usc->dv_xname, mp, mi)) 827 return; 828 /* 829 * SDI status information bytes 10 and 11 are the microprocessor 830 * error code and front panel code respectively. These vary per 831 * drive type and are printed purely for field service information. 832 */ 833 if (mp->mscp_format == M_FM_SDI) 834 printf("\tsdi uproc error code 0x%x, front panel code 0x%x\n", 835 mp->mscp_erd.erd_sdistat[10], 836 mp->mscp_erd.erd_sdistat[11]); 837 } 838 839 void 840 rriodone(usc, bp) 841 struct device *usc; 842 struct buf *bp; 843 { 844 845 biodone(bp); 846 } 847 848 /* 849 * A drive came on line. Check its type and size. Return DONE if 850 * we think the drive is truly on line. In any case, awaken anyone 851 * sleeping on the drive on-line-ness. 852 */ 853 int 854 rronline(usc, mp) 855 struct device *usc; 856 struct mscp *mp; 857 { 858 struct rx_softc *rx = (struct rx_softc *)usc; 859 struct disklabel *dl; 860 861 wakeup((caddr_t)&usc->dv_unit); 862 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 863 printf("%s: attempt to bring on line failed: ", usc->dv_xname); 864 mscp_printevent(mp); 865 return (MSCP_FAILED); 866 } 867 868 rx->ra_state = DK_OPEN; 869 870 dl = rx->ra_disk.dk_label; 871 dl->d_secperunit = (daddr_t)mp->mscp_onle.onle_unitsize; 872 873 if (dl->d_secpercyl) { 874 dl->d_ncylinders = dl->d_secperunit/dl->d_secpercyl; 875 dl->d_type = DTYPE_MSCP; 876 dl->d_rpm = 3600; 877 } else { 878 dl->d_type = DTYPE_FLOPPY; 879 dl->d_rpm = 300; 880 } 881 rrmakelabel(dl, rx->ra_mediaid); 882 883 return (MSCP_DONE); 884 } 885 886 void 887 rrmakelabel(dl, type) 888 struct disklabel *dl; 889 long type; 890 { 891 int n, p = 0; 892 893 dl->d_bbsize = BBSIZE; 894 dl->d_sbsize = SBSIZE; 895 896 /* Create the disk name for disklabel. Phew... */ 897 dl->d_typename[p++] = MSCP_MID_CHAR(2, type); 898 dl->d_typename[p++] = MSCP_MID_CHAR(1, type); 899 if (MSCP_MID_ECH(0, type)) 900 dl->d_typename[p++] = MSCP_MID_CHAR(0, type); 901 n = MSCP_MID_NUM(type); 902 if (n > 99) { 903 dl->d_typename[p++] = '1'; 904 n -= 100; 905 } 906 if (n > 9) { 907 dl->d_typename[p++] = (n / 10) + '0'; 908 n %= 10; 909 } 910 dl->d_typename[p++] = n + '0'; 911 dl->d_typename[p] = 0; 912 dl->d_npartitions = MAXPARTITIONS; 913 dl->d_partitions[0].p_size = dl->d_partitions[2].p_size = 914 dl->d_secperunit; 915 dl->d_partitions[0].p_offset = dl->d_partitions[2].p_offset = 0; 916 dl->d_interleave = dl->d_headswitch = 1; 917 dl->d_magic = dl->d_magic2 = DISKMAGIC; 918 dl->d_checksum = dkcksum(dl); 919 } 920 921 /* 922 * We got some (configured) unit's status. Return DONE if it succeeded. 923 */ 924 int 925 rrgotstatus(usc, mp) 926 struct device *usc; 927 struct mscp *mp; 928 { 929 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 930 printf("%s: attempt to get status failed: ", usc->dv_xname); 931 mscp_printevent(mp); 932 return (MSCP_FAILED); 933 } 934 /* record for (future) bad block forwarding and whatever else */ 935 #ifdef notyet 936 uda_rasave(ui->ui_unit, mp, 1); 937 #endif 938 return (MSCP_DONE); 939 } 940 941 /* 942 * A replace operation finished. 943 */ 944 /*ARGSUSED*/ 945 void 946 rrreplace(usc, mp) 947 struct device *usc; 948 struct mscp *mp; 949 { 950 951 panic("udareplace"); 952 } 953 954 /* 955 * A transfer failed. We get a chance to fix or restart it. 956 * Need to write the bad block forwaring code first.... 957 */ 958 /*ARGSUSED*/ 959 int 960 rrioerror(usc, mp, bp) 961 struct device *usc; 962 struct mscp *mp; 963 struct buf *bp; 964 { 965 struct ra_softc *ra = (void *)usc; 966 int code = mp->mscp_event; 967 968 switch (code & M_ST_MASK) { 969 /* The unit has fallen offline. Try to figure out why. */ 970 case M_ST_OFFLINE: 971 bp->b_flags |= B_ERROR; 972 bp->b_error = EIO; 973 ra->ra_state = DK_CLOSED; 974 if (code & M_OFFLINE_UNMOUNTED) 975 printf("%s: not mounted/spun down\n", usc->dv_xname); 976 if (code & M_OFFLINE_DUPLICATE) 977 printf("%s: duplicate unit number!!!\n", usc->dv_xname); 978 return MSCP_DONE; 979 980 case M_ST_AVAILABLE: 981 ra->ra_state = DK_CLOSED; /* Force another online */ 982 return MSCP_DONE; 983 984 default: 985 printf("%s:", usc->dv_xname); 986 break; 987 } 988 return (MSCP_FAILED); 989 } 990 991 /* 992 * Fill in disk addresses in a mscp packet waiting for transfer. 993 */ 994 void 995 rrfillin(bp, mp) 996 struct buf *bp; 997 struct mscp *mp; 998 { 999 struct rx_softc *rx = 0; /* Wall */ 1000 struct disklabel *lp; 1001 int unit = DISKUNIT(bp->b_dev); 1002 int part = DISKPART(bp->b_dev); 1003 1004 #if NRA 1005 if (major(bp->b_dev) == RAMAJOR) 1006 rx = ra_cd.cd_devs[unit]; 1007 #endif 1008 #if NRX 1009 if (major(bp->b_dev) != RAMAJOR) 1010 rx = rx_cd.cd_devs[unit]; 1011 #endif 1012 lp = rx->ra_disk.dk_label; 1013 1014 mp->mscp_seq.seq_lbn = lp->d_partitions[part].p_offset + bp->b_blkno; 1015 mp->mscp_unit = rx->ra_hwunit; 1016 mp->mscp_seq.seq_bytecount = bp->b_bcount; 1017 } 1018 1019 /* 1020 * A bad block related operation finished. 1021 */ 1022 /*ARGSUSED*/ 1023 void 1024 rrbb(usc, mp, bp) 1025 struct device *usc; 1026 struct mscp *mp; 1027 struct buf *bp; 1028 { 1029 1030 panic("udabb"); 1031 } 1032
Indexes created Tue Sep 30 20:09:53 GMT 2025