mscp_disk.c revision 1.88
1 /* $NetBSD: mscp_disk.c,v 1.88 2015/04/26 15:15:20 mlelstv Exp $ */ 2 /* 3 * Copyright (c) 1988 Regents of the University of California. 4 * All rights reserved. 5 * 6 * This code is derived from software contributed to Berkeley by 7 * Chris Torek. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 * 33 * @(#)uda.c 7.32 (Berkeley) 2/13/91 34 */ 35 36 /* 37 * Copyright (c) 1996 Ludd, University of Lule}, Sweden. 38 * 39 * This code is derived from software contributed to Berkeley by 40 * Chris Torek. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. All advertising materials mentioning features or use of this software 51 * must display the following acknowledgement: 52 * This product includes software developed by the University of 53 * California, Berkeley and its contributors. 54 * 4. Neither the name of the University nor the names of its contributors 55 * may be used to endorse or promote products derived from this software 56 * without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 * SUCH DAMAGE. 69 * 70 * @(#)uda.c 7.32 (Berkeley) 2/13/91 71 */ 72 73 /* 74 * RA disk device driver 75 * RX MSCP floppy disk device driver 76 * RRD MSCP CD device driver 77 */ 78 79 /* 80 * TODO 81 * write bad block forwarding code 82 */ 83 84 #include <sys/cdefs.h> 85 __KERNEL_RCSID(0, "$NetBSD: mscp_disk.c,v 1.88 2015/04/26 15:15:20 mlelstv Exp $"); 86 87 #include <sys/param.h> 88 #include <sys/buf.h> 89 #include <sys/bufq.h> 90 #include <sys/device.h> 91 #include <sys/disk.h> 92 #include <sys/disklabel.h> 93 #include <sys/ioctl.h> 94 #include <sys/stat.h> 95 #include <sys/fcntl.h> 96 #include <sys/reboot.h> 97 #include <sys/proc.h> 98 #include <sys/systm.h> 99 #include <sys/conf.h> 100 101 #include <ufs/ufs/dinode.h> 102 #include <ufs/ffs/fs.h> 103 104 #include <sys/bus.h> 105 #include <sys/cpu.h> 106 107 #include <dev/mscp/mscp.h> 108 #include <dev/mscp/mscpreg.h> 109 #include <dev/mscp/mscpvar.h> 110 111 #include "locators.h" 112 #include "ioconf.h" 113 #include "ra.h" 114 115 /* 116 * Drive status, per drive 117 */ 118 struct ra_softc { 119 device_t ra_dev; /* Autoconf struct */ 120 struct disk ra_disk; 121 int ra_state; /* open/closed state */ 122 u_long ra_mediaid; /* media id */ 123 int ra_hwunit; /* Hardware unit number */ 124 int ra_havelabel; /* true if we have a label */ 125 int ra_wlabel; /* label sector is currently writable */ 126 }; 127 128 #define rx_softc ra_softc 129 #define racd_softc ra_softc 130 131 void raattach(device_t, device_t, void *); 132 int rx_putonline(struct rx_softc *); 133 void rrmakelabel(struct disklabel *, long); 134 int ra_putonline(dev_t, struct ra_softc *); 135 static inline struct ra_softc *mscp_device_lookup(dev_t); 136 137 #if NRA 138 139 int ramatch(device_t, cfdata_t, void *); 140 141 CFATTACH_DECL_NEW(ra, sizeof(struct ra_softc), 142 ramatch, raattach, NULL, NULL); 143 144 #endif /* NRA */ 145 146 #if NRA || NRACD || NRX 147 148 dev_type_open(raopen); 149 dev_type_close(raclose); 150 dev_type_read(raread); 151 dev_type_write(rawrite); 152 dev_type_ioctl(raioctl); 153 dev_type_strategy(rastrategy); 154 dev_type_dump(radump); 155 dev_type_size(rasize); 156 157 #if NRA 158 159 const struct bdevsw ra_bdevsw = { 160 .d_open = raopen, 161 .d_close = raclose, 162 .d_strategy = rastrategy, 163 .d_ioctl = raioctl, 164 .d_dump = radump, 165 .d_psize = rasize, 166 .d_discard = nodiscard, 167 .d_flag = D_DISK 168 }; 169 170 const struct cdevsw ra_cdevsw = { 171 .d_open = raopen, 172 .d_close = raclose, 173 .d_read = raread, 174 .d_write = rawrite, 175 .d_ioctl = raioctl, 176 .d_stop = nostop, 177 .d_tty = notty, 178 .d_poll = nopoll, 179 .d_mmap = nommap, 180 .d_kqfilter = nokqfilter, 181 .d_discard = nodiscard, 182 .d_flag = D_DISK 183 }; 184 185 static struct dkdriver radkdriver = { 186 .d_strategy = rastrategy, 187 .d_minphys = minphys 188 }; 189 190 /* 191 * More driver definitions, for generic MSCP code. 192 */ 193 194 int 195 ramatch(device_t parent, cfdata_t cf, void *aux) 196 { 197 struct drive_attach_args *da = aux; 198 struct mscp *mp = da->da_mp; 199 200 if ((da->da_typ & MSCPBUS_DISK) == 0) 201 return 0; 202 if (cf->cf_loc[MSCPBUSCF_DRIVE] != MSCPBUSCF_DRIVE_DEFAULT && 203 cf->cf_loc[MSCPBUSCF_DRIVE] != mp->mscp_unit) 204 return 0; 205 /* 206 * Check if this disk is a floppy (RX) or cd (RRD) 207 * Seems to be a safe way to test it per Chris Torek. 208 */ 209 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'X' - '@') 210 return 0; 211 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'R' - '@') 212 return 0; 213 return 1; 214 } 215 216 #endif /* NRA */ 217 218 /* 219 * Open a drive. 220 */ 221 /*ARGSUSED*/ 222 int 223 raopen(dev_t dev, int flag, int fmt, struct lwp *l) 224 { 225 struct ra_softc *ra = mscp_device_lookup(dev); 226 int error, part, mask; 227 /* 228 * Make sure this is a reasonable open request. 229 */ 230 if (!ra) 231 return ENXIO; 232 233 part = DISKPART(dev); 234 235 mutex_enter(&ra->ra_disk.dk_openlock); 236 237 /* 238 * If there are wedges, and this is not RAW_PART, then we 239 * need to fail. 240 */ 241 if (ra->ra_disk.dk_nwedges != 0 && part != RAW_PART) { 242 error = EBUSY; 243 goto bad1; 244 } 245 246 /* 247 * If this is the first open; we must first try to put 248 * the disk online (and read the label). 249 */ 250 if (ra->ra_state == DK_CLOSED) { 251 if (ra_putonline(dev, ra) == MSCP_FAILED) { 252 error = ENXIO; 253 goto bad1; 254 } 255 } 256 257 /* If the disk has no label; allow writing everywhere */ 258 if (ra->ra_havelabel == 0) 259 ra->ra_wlabel = 1; 260 261 if (part >= ra->ra_disk.dk_label->d_npartitions) { 262 error = ENXIO; 263 goto bad1; 264 } 265 266 /* 267 * Wait for the state to settle 268 */ 269 #if notyet 270 while (ra->ra_state != DK_OPEN) 271 if ((error = tsleep((void *)ra, (PZERO + 1) | PCATCH, 272 devopn, 0))) { 273 splx(s); 274 return (error); 275 } 276 #endif 277 278 mask = 1 << part; 279 280 switch (fmt) { 281 case S_IFCHR: 282 ra->ra_disk.dk_copenmask |= mask; 283 break; 284 case S_IFBLK: 285 ra->ra_disk.dk_bopenmask |= mask; 286 break; 287 } 288 ra->ra_disk.dk_openmask |= mask; 289 error = 0; 290 bad1: 291 mutex_exit(&ra->ra_disk.dk_openlock); 292 return (error); 293 } 294 295 /* ARGSUSED */ 296 int 297 raclose(dev_t dev, int flags, int fmt, struct lwp *l) 298 { 299 struct ra_softc *ra = mscp_device_lookup(dev); 300 int mask = (1 << DISKPART(dev)); 301 302 mutex_enter(&ra->ra_disk.dk_openlock); 303 304 switch (fmt) { 305 case S_IFCHR: 306 ra->ra_disk.dk_copenmask &= ~mask; 307 break; 308 case S_IFBLK: 309 ra->ra_disk.dk_bopenmask &= ~mask; 310 break; 311 } 312 ra->ra_disk.dk_openmask = 313 ra->ra_disk.dk_copenmask | ra->ra_disk.dk_bopenmask; 314 315 /* 316 * Should wait for I/O to complete on this partition even if 317 * others are open, but wait for work on blkflush(). 318 */ 319 #if notyet 320 if (ra->ra_openpart == 0) { 321 s = spluba(); 322 while (bufq_peek(udautab[unit]) != NULL) 323 (void) tsleep(&udautab[unit], PZERO - 1, 324 "raclose", 0); 325 splx(s); 326 ra->ra_state = DK_CLOSED; 327 ra->ra_wlabel = 0; 328 } 329 #endif 330 mutex_exit(&ra->ra_disk.dk_openlock); 331 return (0); 332 } 333 334 /* 335 * Queue a transfer request, and if possible, hand it to the controller. 336 */ 337 void 338 rastrategy(struct buf *bp) 339 { 340 struct ra_softc *ra = mscp_device_lookup(bp->b_dev); 341 int b; 342 343 /* 344 * Make sure this is a reasonable drive to use. 345 */ 346 if (ra == NULL) { 347 bp->b_error = ENXIO; 348 goto done; 349 } 350 /* 351 * If drive is open `raw' or reading label, let it at it. 352 */ 353 if (ra->ra_state == DK_RDLABEL) { 354 /* Make some statistics... /bqt */ 355 b = splbio(); 356 disk_busy(&ra->ra_disk); 357 splx(b); 358 mscp_strategy(bp, device_parent(ra->ra_dev)); 359 return; 360 } 361 362 /* If disk is not online, try to put it online */ 363 if (ra->ra_state == DK_CLOSED) 364 if (ra_putonline(bp->b_dev, ra) == MSCP_FAILED) { 365 bp->b_error = EIO; 366 goto done; 367 } 368 369 /* 370 * Determine the size of the transfer, and make sure it is 371 * within the boundaries of the partition. 372 */ 373 if (bounds_check_with_label(&ra->ra_disk, bp, ra->ra_wlabel) <= 0) 374 goto done; 375 376 /* Make some statistics... /bqt */ 377 b = splbio(); 378 disk_busy(&ra->ra_disk); 379 splx(b); 380 mscp_strategy(bp, device_parent(ra->ra_dev)); 381 return; 382 383 done: 384 biodone(bp); 385 } 386 387 int 388 raread(dev_t dev, struct uio *uio, int flags) 389 { 390 391 return (physio(rastrategy, NULL, dev, B_READ, minphys, uio)); 392 } 393 394 int 395 rawrite(dev_t dev, struct uio *uio, int flags) 396 { 397 398 return (physio(rastrategy, NULL, dev, B_WRITE, minphys, uio)); 399 } 400 401 /* 402 * I/O controls. 403 */ 404 int 405 raioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 406 { 407 struct disklabel *lp, *tp; 408 struct ra_softc *ra = mscp_device_lookup(dev); 409 int error; 410 #ifdef __HAVE_OLD_DISKLABEL 411 struct disklabel newlabel; 412 #endif 413 414 lp = ra->ra_disk.dk_label; 415 416 error = disk_ioctl(&ra->ra_disk, dev, cmd, data, flag, l); 417 if (error != EPASSTHROUGH) 418 return error; 419 else 420 error = 0; 421 422 switch (cmd) { 423 case DIOCWDINFO: 424 case DIOCSDINFO: 425 #ifdef __HAVE_OLD_DISKLABEL 426 case ODIOCWDINFO: 427 case ODIOCSDINFO: 428 if (cmd == ODIOCSDINFO || cmd == ODIOCWDINFO) { 429 memset(&newlabel, 0, sizeof newlabel); 430 memcpy(&newlabel, data, sizeof (struct olddisklabel)); 431 tp = &newlabel; 432 } else 433 #endif 434 tp = (struct disklabel *)data; 435 436 if ((flag & FWRITE) == 0) 437 error = EBADF; 438 else { 439 mutex_enter(&ra->ra_disk.dk_openlock); 440 error = setdisklabel(lp, tp, 0, 0); 441 if ((error == 0) && (cmd == DIOCWDINFO 442 #ifdef __HAVE_OLD_DISKLABEL 443 || cmd == ODIOCWDINFO 444 #endif 445 )) { 446 ra->ra_wlabel = 1; 447 error = writedisklabel(dev, rastrategy, lp,0); 448 ra->ra_wlabel = 0; 449 } 450 mutex_exit(&ra->ra_disk.dk_openlock); 451 } 452 break; 453 454 case DIOCWLABEL: 455 if ((flag & FWRITE) == 0) 456 error = EBADF; 457 else 458 ra->ra_wlabel = 1; 459 break; 460 461 case DIOCGDEFLABEL: 462 #ifdef __HAVE_OLD_DISKLABEL 463 case ODIOCGDEFLABEL: 464 if (cmd == ODIOCGDEFLABEL) 465 tp = &newlabel; 466 else 467 #endif 468 tp = (struct disklabel *)data; 469 memset(tp, 0, sizeof(struct disklabel)); 470 tp->d_secsize = lp->d_secsize; 471 tp->d_nsectors = lp->d_nsectors; 472 tp->d_ntracks = lp->d_ntracks; 473 tp->d_ncylinders = lp->d_ncylinders; 474 tp->d_secpercyl = lp->d_secpercyl; 475 tp->d_secperunit = lp->d_secperunit; 476 tp->d_type = DKTYPE_MSCP; 477 tp->d_rpm = 3600; 478 rrmakelabel(tp, ra->ra_mediaid); 479 #ifdef __HAVE_OLD_DISKLABEL 480 if (cmd == ODIOCGDEFLABEL) { 481 if (tp->d_npartitions > OLDMAXPARTITIONS) 482 return ENOTTY; 483 memcpy(data, tp, sizeof (struct olddisklabel)); 484 } 485 #endif 486 break; 487 488 default: 489 error = ENOTTY; 490 break; 491 } 492 return (error); 493 } 494 495 int 496 radump(dev_t dev, daddr_t blkno, void *va, size_t size) 497 { 498 return ENXIO; 499 } 500 501 /* 502 * Return the size of a partition, if known, or -1 if not. 503 */ 504 int 505 rasize(dev_t dev) 506 { 507 struct ra_softc *ra = mscp_device_lookup(dev); 508 509 if (!ra) 510 return -1; 511 512 if (ra->ra_state == DK_CLOSED) 513 if (ra_putonline(dev, ra) == MSCP_FAILED) 514 return -1; 515 516 return ra->ra_disk.dk_label->d_partitions[DISKPART(dev)].p_size * 517 (ra->ra_disk.dk_label->d_secsize / DEV_BSIZE); 518 } 519 520 #endif /* NRA || NRACD || NRX */ 521 522 #if NRX 523 524 int rxmatch(device_t, cfdata_t, void *); 525 526 CFATTACH_DECL_NEW(rx, sizeof(struct rx_softc), 527 rxmatch, raattach, NULL, NULL); 528 529 dev_type_open(rxopen); 530 dev_type_read(rxread); 531 dev_type_write(rxwrite); 532 dev_type_ioctl(rxioctl); 533 dev_type_strategy(rxstrategy); 534 dev_type_dump(radump); 535 dev_type_size(rxsize); 536 537 const struct bdevsw rx_bdevsw = { 538 .d_open = rxopen, 539 .d_close = nullclose, 540 .d_strategy = rxstrategy, 541 .d_ioctl = rxioctl, 542 .d_dump = radump, 543 .d_psize = rxsize, 544 .d_discard = nodiscard, 545 .d_flag = D_DISK 546 }; 547 548 const struct cdevsw rx_cdevsw = { 549 .d_open = rxopen, 550 .d_close = nullclose, 551 .d_read = rxread, 552 .d_write = rxwrite, 553 .d_ioctl = rxioctl, 554 .d_stop = nostop, 555 .d_tty = notty, 556 .d_poll = nopoll, 557 .d_mmap = nommap, 558 .d_kqfilter = nokqfilter, 559 .d_discard = nodiscard, 560 .d_flag = D_DISK 561 }; 562 563 static struct dkdriver rxdkdriver = { 564 rxstrategy, minphys 565 }; 566 567 /* 568 * More driver definitions, for generic MSCP code. 569 */ 570 571 int 572 rxmatch(device_t parent, cfdata_t cf, void *aux) 573 { 574 struct drive_attach_args *da = aux; 575 struct mscp *mp = da->da_mp; 576 577 if ((da->da_typ & MSCPBUS_DISK) == 0) 578 return 0; 579 if (cf->cf_loc[MSCPBUSCF_DRIVE] != MSCPBUSCF_DRIVE_DEFAULT && 580 cf->cf_loc[MSCPBUSCF_DRIVE] != mp->mscp_unit) 581 return 0; 582 /* 583 * Check if this disk is a floppy (RX) 584 * Seems to be a safe way to test it per Chris Torek. 585 */ 586 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'X' - '@') 587 return 1; 588 return 0; 589 } 590 591 #endif /* NRX */ 592 593 #if NRACD 594 595 /* Use almost all ra* routines for racd */ 596 597 int racdmatch(device_t, cfdata_t, void *); 598 599 CFATTACH_DECL_NEW(racd, sizeof(struct racd_softc), 600 racdmatch, raattach, NULL, NULL); 601 602 dev_type_open(raopen); 603 dev_type_read(raread); 604 dev_type_write(rawrite); 605 dev_type_ioctl(raioctl); 606 dev_type_strategy(rastrategy); 607 dev_type_dump(radump); 608 dev_type_size(rasize); 609 610 const struct bdevsw racd_bdevsw = { 611 .d_open = raopen, 612 .d_close = nullclose, 613 .d_strategy = rastrategy, 614 .d_ioctl = raioctl, 615 .d_dump = radump, 616 .d_psize = rasize, 617 .d_discard = nodiscard, 618 .d_flag = D_DISK 619 }; 620 621 const struct cdevsw racd_cdevsw = { 622 .d_open = raopen, 623 .d_close = nullclose, 624 .d_read = raread, 625 .d_write = rawrite, 626 .d_ioctl = raioctl, 627 .d_stop = nostop, 628 .d_tty = notty, 629 .d_poll = nopoll, 630 .d_mmap = nommap, 631 .d_kqfilter = nokqfilter, 632 .d_discard = nodiscard, 633 .d_flag = D_DISK 634 }; 635 636 static struct dkdriver racddkdriver = { 637 rastrategy, minphys 638 }; 639 640 /* 641 * More driver definitions, for generic MSCP code. 642 */ 643 644 int 645 racdmatch(device_t parent, cfdata_t cf, void *aux) 646 { 647 struct drive_attach_args *da = aux; 648 struct mscp *mp = da->da_mp; 649 650 if ((da->da_typ & MSCPBUS_DISK) == 0) 651 return 0; 652 if (cf->cf_loc[MSCPBUSCF_DRIVE] != MSCPBUSCF_DRIVE_DEFAULT && 653 cf->cf_loc[MSCPBUSCF_DRIVE] != mp->mscp_unit) 654 return 0; 655 /* 656 * Check if this disk is a CD (RRD) 657 */ 658 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'R' - '@') 659 return 1; 660 return 0; 661 } 662 663 #endif /* NRACD */ 664 665 /* 666 * The attach routine only checks and prints drive type. 667 * Bringing the disk online is done when the disk is accessed 668 * the first time. 669 */ 670 void 671 raattach(device_t parent, device_t self, void *aux) 672 { 673 struct rx_softc *rx = device_private(self); 674 struct drive_attach_args *da = aux; 675 struct mscp *mp = da->da_mp; 676 struct mscp_softc *mi = device_private(parent); 677 struct disklabel *dl; 678 679 rx->ra_dev = self; 680 rx->ra_mediaid = mp->mscp_guse.guse_mediaid; 681 rx->ra_state = DK_CLOSED; 682 rx->ra_hwunit = mp->mscp_unit; 683 mi->mi_dp[mp->mscp_unit] = self; 684 685 #if NRX 686 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'X' - '@') 687 disk_init((struct disk *)&rx->ra_disk, device_xname(rx->ra_dev), 688 &rxdkdriver); 689 #endif 690 #if NRACD 691 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'R' - '@') 692 disk_init((struct disk *)&rx->ra_disk, device_xname(rx->ra_dev), 693 &racddkdriver); 694 #endif 695 #if NRA 696 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) != 'X' - '@' && 697 MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) != 'R' - '@') 698 disk_init((struct disk *)&rx->ra_disk, device_xname(rx->ra_dev), 699 &radkdriver); 700 #endif 701 disk_attach(&rx->ra_disk); 702 703 /* Fill in what we know. The actual size is gotten later */ 704 dl = rx->ra_disk.dk_label; 705 706 dl->d_secsize = DEV_BSIZE; 707 dl->d_nsectors = mp->mscp_guse.guse_nspt; 708 dl->d_ntracks = mp->mscp_guse.guse_ngpc * mp->mscp_guse.guse_group; 709 dl->d_secpercyl = dl->d_nsectors * dl->d_ntracks; 710 disk_printtype(mp->mscp_unit, mp->mscp_guse.guse_mediaid); 711 #ifdef DEBUG 712 printf("%s: nspt %d group %d ngpc %d rct %d nrpt %d nrct %d\n", 713 device_xname(self), mp->mscp_guse.guse_nspt, mp->mscp_guse.guse_group, 714 mp->mscp_guse.guse_ngpc, mp->mscp_guse.guse_rctsize, 715 mp->mscp_guse.guse_nrpt, mp->mscp_guse.guse_nrct); 716 #endif 717 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) != 'X' - '@') { 718 /* 719 * XXX We should try to discover wedges here, but 720 * XXX that would mean being able to do I/O. Should 721 * XXX use config_defer() here. 722 */ 723 } 724 } 725 726 /* 727 * (Try to) put the drive online. This is done the first time the 728 * drive is opened, or if it har fallen offline. 729 */ 730 int 731 rx_putonline(struct rx_softc *rx) 732 { 733 struct mscp *mp; 734 struct mscp_softc *mi = device_private(device_parent(rx->ra_dev)); 735 736 rx->ra_state = DK_CLOSED; 737 mp = mscp_getcp(mi, MSCP_WAIT); 738 mp->mscp_opcode = M_OP_ONLINE; 739 mp->mscp_unit = rx->ra_hwunit; 740 mp->mscp_cmdref = 1; 741 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 742 743 /* Poll away */ 744 bus_space_read_2(mi->mi_iot, mi->mi_iph, 0); 745 if (tsleep(&rx->ra_state, PRIBIO, "rxonline", 100*100)) 746 rx->ra_state = DK_CLOSED; 747 748 if (rx->ra_state == DK_CLOSED) 749 return MSCP_FAILED; 750 751 return MSCP_DONE; 752 } 753 754 #if NRX 755 756 /* 757 * Open a drive. 758 */ 759 /*ARGSUSED*/ 760 int 761 rxopen(dev_t dev, int flag, int fmt, struct lwp *l) 762 { 763 struct rx_softc *rx; 764 int unit; 765 766 /* 767 * Make sure this is a reasonable open request. 768 */ 769 unit = DISKUNIT(dev); 770 rx = device_lookup_private(&rx_cd, unit); 771 if (!rx) 772 return ENXIO; 773 774 /* 775 * If this is the first open; we must first try to put 776 * the disk online (and read the label). 777 */ 778 if (rx->ra_state == DK_CLOSED) 779 if (rx_putonline(rx) == MSCP_FAILED) 780 return ENXIO; 781 782 return 0; 783 } 784 785 /* 786 * Queue a transfer request, and if possible, hand it to the controller. 787 * 788 * This routine is broken into two so that the internal version 789 * udastrat1() can be called by the (nonexistent, as yet) bad block 790 * revectoring routine. 791 */ 792 void 793 rxstrategy(struct buf *bp) 794 { 795 int unit; 796 struct rx_softc *rx; 797 int b; 798 799 /* 800 * Make sure this is a reasonable drive to use. 801 */ 802 unit = DISKUNIT(bp->b_dev); 803 if ((rx = device_lookup_private(&rx_cd, unit)) == NULL) { 804 bp->b_error = ENXIO; 805 goto done; 806 } 807 808 /* If disk is not online, try to put it online */ 809 if (rx->ra_state == DK_CLOSED) 810 if (rx_putonline(rx) == MSCP_FAILED) { 811 bp->b_error = EIO; 812 goto done; 813 } 814 815 /* 816 * Determine the size of the transfer, and make sure it is 817 * within the boundaries of the partition. 818 */ 819 if (bp->b_blkno >= rx->ra_disk.dk_label->d_secperunit) { 820 bp->b_resid = bp->b_bcount; 821 goto done; 822 } 823 824 /* Make some statistics... /bqt */ 825 b = splbio(); 826 disk_busy(&rx->ra_disk); 827 splx(b); 828 mscp_strategy(bp, device_parent(rx->ra_dev)); 829 return; 830 831 done: 832 biodone(bp); 833 } 834 835 int 836 rxread(dev_t dev, struct uio *uio, int flag) 837 { 838 839 return (physio(rxstrategy, NULL, dev, B_READ, minphys, uio)); 840 } 841 842 int 843 rxwrite(dev_t dev, struct uio *uio, int flag) 844 { 845 846 return (physio(rxstrategy, NULL, dev, B_WRITE, minphys, uio)); 847 } 848 849 /* 850 * I/O controls. 851 */ 852 int 853 rxioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 854 { 855 int unit = DISKUNIT(dev); 856 struct rx_softc *rx = device_lookup_private(&rx_cd, unit); 857 int error; 858 859 error = disk_ioctl(&rx->ra_disk, dev, cmd, data, flag, l); 860 if (error != EPASSTHROUGH) 861 return error; 862 else 863 error = 0; 864 865 switch (cmd) { 866 case DIOCWDINFO: 867 case DIOCSDINFO: 868 case DIOCWLABEL: 869 break; 870 871 default: 872 error = ENOTTY; 873 break; 874 } 875 return (error); 876 } 877 878 int 879 rxsize(dev_t dev) 880 { 881 882 return -1; 883 } 884 885 #endif /* NRX */ 886 887 void rrdgram(device_t, struct mscp *, struct mscp_softc *); 888 void rriodone(device_t, struct buf *); 889 int rronline(device_t, struct mscp *); 890 int rrgotstatus(device_t, struct mscp *); 891 void rrreplace(device_t, struct mscp *); 892 int rrioerror(device_t, struct mscp *, struct buf *); 893 void rrfillin(struct buf *, struct mscp *); 894 void rrbb(device_t, struct mscp *, struct buf *); 895 896 897 struct mscp_device ra_device = { 898 rrdgram, 899 rriodone, 900 rronline, 901 rrgotstatus, 902 rrreplace, 903 rrioerror, 904 rrbb, 905 rrfillin, 906 }; 907 908 /* 909 * Handle an error datagram. 910 * This can come from an unconfigured drive as well. 911 */ 912 void 913 rrdgram(device_t usc, struct mscp *mp, struct mscp_softc *mi) 914 { 915 if (mscp_decodeerror(usc == NULL?"unconf disk" : device_xname(usc), mp, mi)) 916 return; 917 /* 918 * SDI status information bytes 10 and 11 are the microprocessor 919 * error code and front panel code respectively. These vary per 920 * drive type and are printed purely for field service information. 921 */ 922 if (mp->mscp_format == M_FM_SDI) 923 printf("\tsdi uproc error code 0x%x, front panel code 0x%x\n", 924 mp->mscp_erd.erd_sdistat[10], 925 mp->mscp_erd.erd_sdistat[11]); 926 } 927 928 929 void 930 rriodone(device_t usc, struct buf *bp) 931 { 932 struct ra_softc *ra = device_private(usc); 933 934 disk_unbusy(&ra->ra_disk, bp->b_bcount, (bp->b_flags & B_READ)); 935 936 biodone(bp); 937 } 938 939 /* 940 * A drive came on line. Check its type and size. Return DONE if 941 * we think the drive is truly on line. In any case, awaken anyone 942 * sleeping on the drive on-line-ness. 943 */ 944 int 945 rronline(device_t usc, struct mscp *mp) 946 { 947 struct ra_softc *ra = device_private(usc); 948 struct disklabel *dl; 949 950 wakeup((void *)&ra->ra_state); 951 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 952 aprint_error_dev(usc, "attempt to bring on line failed: "); 953 mscp_printevent(mp); 954 return (MSCP_FAILED); 955 } 956 957 ra->ra_state = DK_OPEN; 958 959 dl = ra->ra_disk.dk_label; 960 dl->d_secperunit = (daddr_t)mp->mscp_onle.onle_unitsize; 961 962 if (dl->d_secpercyl) { 963 dl->d_ncylinders = dl->d_secperunit/dl->d_secpercyl; 964 dl->d_type = DKTYPE_MSCP; 965 dl->d_rpm = 3600; 966 } else { 967 dl->d_type = DKTYPE_FLOPPY; 968 dl->d_rpm = 300; 969 } 970 rrmakelabel(dl, ra->ra_mediaid); 971 972 return (MSCP_DONE); 973 } 974 975 void 976 rrmakelabel(struct disklabel *dl, long type) 977 { 978 int n, p = 0; 979 980 dl->d_bbsize = BBSIZE; 981 dl->d_sbsize = SBLOCKSIZE; 982 983 /* Create the disk name for disklabel. Phew... */ 984 dl->d_typename[p++] = MSCP_MID_CHAR(2, type); 985 dl->d_typename[p++] = MSCP_MID_CHAR(1, type); 986 if (MSCP_MID_ECH(0, type)) 987 dl->d_typename[p++] = MSCP_MID_CHAR(0, type); 988 n = MSCP_MID_NUM(type); 989 if (n > 99) { 990 dl->d_typename[p++] = '1'; 991 n -= 100; 992 } 993 if (n > 9) { 994 dl->d_typename[p++] = (n / 10) + '0'; 995 n %= 10; 996 } 997 dl->d_typename[p++] = n + '0'; 998 dl->d_typename[p] = 0; 999 dl->d_npartitions = MAXPARTITIONS; 1000 dl->d_partitions[0].p_size = dl->d_partitions[2].p_size = 1001 dl->d_secperunit; 1002 dl->d_partitions[0].p_offset = dl->d_partitions[2].p_offset = 0; 1003 dl->d_interleave = dl->d_headswitch = 1; 1004 dl->d_magic = dl->d_magic2 = DISKMAGIC; 1005 dl->d_checksum = dkcksum(dl); 1006 } 1007 1008 /* 1009 * We got some (configured) unit's status. Return DONE if it succeeded. 1010 */ 1011 int 1012 rrgotstatus(device_t usc, struct mscp *mp) 1013 { 1014 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 1015 aprint_error_dev(usc, "attempt to get status failed: "); 1016 mscp_printevent(mp); 1017 return (MSCP_FAILED); 1018 } 1019 /* record for (future) bad block forwarding and whatever else */ 1020 #ifdef notyet 1021 uda_rasave(ui->ui_unit, mp, 1); 1022 #endif 1023 return (MSCP_DONE); 1024 } 1025 1026 /* 1027 * A replace operation finished. 1028 */ 1029 /*ARGSUSED*/ 1030 void 1031 rrreplace(device_t usc, struct mscp *mp) 1032 { 1033 1034 panic("udareplace"); 1035 } 1036 1037 /* 1038 * A transfer failed. We get a chance to fix or restart it. 1039 * Need to write the bad block forwaring code first.... 1040 */ 1041 /*ARGSUSED*/ 1042 int 1043 rrioerror(device_t usc, struct mscp *mp, struct buf *bp) 1044 { 1045 struct ra_softc *ra = device_private(usc); 1046 int code = mp->mscp_event; 1047 1048 switch (code & M_ST_MASK) { 1049 /* The unit has fallen offline. Try to figure out why. */ 1050 case M_ST_OFFLINE: 1051 bp->b_error = EIO; 1052 ra->ra_state = DK_CLOSED; 1053 if (code & M_OFFLINE_UNMOUNTED) 1054 aprint_error_dev(usc, "not mounted/spun down\n"); 1055 if (code & M_OFFLINE_DUPLICATE) 1056 aprint_error_dev(usc, "duplicate unit number!!!\n"); 1057 return MSCP_DONE; 1058 1059 case M_ST_AVAILABLE: 1060 ra->ra_state = DK_CLOSED; /* Force another online */ 1061 return MSCP_DONE; 1062 1063 default: 1064 printf("%s:", device_xname(usc)); 1065 break; 1066 } 1067 return (MSCP_FAILED); 1068 } 1069 1070 /* 1071 * Fill in disk addresses in a mscp packet waiting for transfer. 1072 */ 1073 void 1074 rrfillin(struct buf *bp, struct mscp *mp) 1075 { 1076 struct ra_softc *ra; 1077 struct disklabel *lp; 1078 int part = DISKPART(bp->b_dev); 1079 1080 ra = mscp_device_lookup(bp->b_dev); 1081 lp = ra->ra_disk.dk_label; 1082 1083 mp->mscp_seq.seq_lbn = lp->d_partitions[part].p_offset + bp->b_blkno; 1084 mp->mscp_unit = ra->ra_hwunit; 1085 mp->mscp_seq.seq_bytecount = bp->b_bcount; 1086 } 1087 1088 /* 1089 * A bad block related operation finished. 1090 */ 1091 /*ARGSUSED*/ 1092 void 1093 rrbb(device_t usc, struct mscp *mp, struct buf *bp) 1094 { 1095 1096 panic("udabb"); 1097 } 1098 1099 /* 1100 * (Try to) put the drive online. This is done the first time the 1101 * drive is opened, or if it has fallen offline. 1102 */ 1103 int 1104 ra_putonline(dev_t dev, struct ra_softc *ra) 1105 { 1106 struct disklabel *dl; 1107 const char *msg; 1108 1109 if (rx_putonline(ra) != MSCP_DONE) 1110 return MSCP_FAILED; 1111 1112 dl = ra->ra_disk.dk_label; 1113 1114 ra->ra_state = DK_RDLABEL; 1115 printf("%s", device_xname(ra->ra_dev)); 1116 if ((msg = readdisklabel( 1117 MAKEDISKDEV(major(dev), device_unit(ra->ra_dev), RAW_PART), 1118 rastrategy, dl, NULL)) == NULL) { 1119 ra->ra_havelabel = 1; 1120 ra->ra_state = DK_OPEN; 1121 } 1122 #if NRACD 1123 else if (cdevsw_lookup(dev) == &racd_cdevsw) { 1124 dl->d_partitions[0].p_offset = 0; 1125 dl->d_partitions[0].p_size = dl->d_secperunit; 1126 dl->d_partitions[0].p_fstype = FS_ISO9660; 1127 } 1128 #endif /* NRACD */ 1129 else { 1130 printf(": %s", msg); 1131 } 1132 1133 printf(": size %d sectors\n", dl->d_secperunit); 1134 1135 return MSCP_DONE; 1136 } 1137 1138 1139 static inline struct ra_softc * 1140 mscp_device_lookup(dev_t dev) 1141 { 1142 struct ra_softc *ra; 1143 int unit; 1144 1145 unit = DISKUNIT(dev); 1146 #if NRA 1147 if (cdevsw_lookup(dev) == &ra_cdevsw) 1148 ra = device_lookup_private(&ra_cd, unit); 1149 else 1150 #endif 1151 #if NRACD 1152 if (cdevsw_lookup(dev) == &racd_cdevsw) 1153 ra = device_lookup_private(&racd_cd, unit); 1154 else 1155 #endif 1156 #if NRX 1157 if (cdevsw_lookup(dev) == &rx_cdevsw) 1158 ra = device_lookup_private(&rx_cd, unit); 1159 else 1160 #endif 1161 panic("mscp_device_lookup: unexpected major %"PRIu32" unit %u", 1162 major(dev), unit); 1163 return ra; 1164 } 1165
Indexes created Tue Sep 30 20:09:53 GMT 2025