mscp_disk.c revision 1.87
1 /* $NetBSD: mscp_disk.c,v 1.87 2015/01/02 19:42:07 christos 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 1.87 2015/01/02 19:42:07 christos 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 rastrategy, minphys 187 }; 188 189 /* 190 * More driver definitions, for generic MSCP code. 191 */ 192 193 int 194 ramatch(device_t parent, cfdata_t cf, void *aux) 195 { 196 struct drive_attach_args *da = aux; 197 struct mscp *mp = da->da_mp; 198 199 if ((da->da_typ & MSCPBUS_DISK) == 0) 200 return 0; 201 if (cf->cf_loc[MSCPBUSCF_DRIVE] != MSCPBUSCF_DRIVE_DEFAULT && 202 cf->cf_loc[MSCPBUSCF_DRIVE] != mp->mscp_unit) 203 return 0; 204 /* 205 * Check if this disk is a floppy (RX) or cd (RRD) 206 * Seems to be a safe way to test it per Chris Torek. 207 */ 208 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'X' - '@') 209 return 0; 210 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'R' - '@') 211 return 0; 212 return 1; 213 } 214 215 #endif /* NRA */ 216 217 /* 218 * Open a drive. 219 */ 220 /*ARGSUSED*/ 221 int 222 raopen(dev_t dev, int flag, int fmt, struct lwp *l) 223 { 224 struct ra_softc *ra = mscp_device_lookup(dev); 225 int error, part, mask; 226 /* 227 * Make sure this is a reasonable open request. 228 */ 229 if (!ra) 230 return ENXIO; 231 232 part = DISKPART(dev); 233 234 mutex_enter(&ra->ra_disk.dk_openlock); 235 236 /* 237 * If there are wedges, and this is not RAW_PART, then we 238 * need to fail. 239 */ 240 if (ra->ra_disk.dk_nwedges != 0 && part != RAW_PART) { 241 error = EBUSY; 242 goto bad1; 243 } 244 245 /* 246 * If this is the first open; we must first try to put 247 * the disk online (and read the label). 248 */ 249 if (ra->ra_state == DK_CLOSED) { 250 if (ra_putonline(dev, ra) == MSCP_FAILED) { 251 error = ENXIO; 252 goto bad1; 253 } 254 } 255 256 /* If the disk has no label; allow writing everywhere */ 257 if (ra->ra_havelabel == 0) 258 ra->ra_wlabel = 1; 259 260 if (part >= ra->ra_disk.dk_label->d_npartitions) { 261 error = ENXIO; 262 goto bad1; 263 } 264 265 /* 266 * Wait for the state to settle 267 */ 268 #if notyet 269 while (ra->ra_state != DK_OPEN) 270 if ((error = tsleep((void *)ra, (PZERO + 1) | PCATCH, 271 devopn, 0))) { 272 splx(s); 273 return (error); 274 } 275 #endif 276 277 mask = 1 << part; 278 279 switch (fmt) { 280 case S_IFCHR: 281 ra->ra_disk.dk_copenmask |= mask; 282 break; 283 case S_IFBLK: 284 ra->ra_disk.dk_bopenmask |= mask; 285 break; 286 } 287 ra->ra_disk.dk_openmask |= mask; 288 error = 0; 289 bad1: 290 mutex_exit(&ra->ra_disk.dk_openlock); 291 return (error); 292 } 293 294 /* ARGSUSED */ 295 int 296 raclose(dev_t dev, int flags, int fmt, struct lwp *l) 297 { 298 struct ra_softc *ra = mscp_device_lookup(dev); 299 int mask = (1 << DISKPART(dev)); 300 301 mutex_enter(&ra->ra_disk.dk_openlock); 302 303 switch (fmt) { 304 case S_IFCHR: 305 ra->ra_disk.dk_copenmask &= ~mask; 306 break; 307 case S_IFBLK: 308 ra->ra_disk.dk_bopenmask &= ~mask; 309 break; 310 } 311 ra->ra_disk.dk_openmask = 312 ra->ra_disk.dk_copenmask | ra->ra_disk.dk_bopenmask; 313 314 /* 315 * Should wait for I/O to complete on this partition even if 316 * others are open, but wait for work on blkflush(). 317 */ 318 #if notyet 319 if (ra->ra_openpart == 0) { 320 s = spluba(); 321 while (bufq_peek(udautab[unit]) != NULL) 322 (void) tsleep(&udautab[unit], PZERO - 1, 323 "raclose", 0); 324 splx(s); 325 ra->ra_state = DK_CLOSED; 326 ra->ra_wlabel = 0; 327 } 328 #endif 329 mutex_exit(&ra->ra_disk.dk_openlock); 330 return (0); 331 } 332 333 /* 334 * Queue a transfer request, and if possible, hand it to the controller. 335 */ 336 void 337 rastrategy(struct buf *bp) 338 { 339 struct ra_softc *ra = mscp_device_lookup(bp->b_dev); 340 int b; 341 342 /* 343 * Make sure this is a reasonable drive to use. 344 */ 345 if (ra == NULL) { 346 bp->b_error = ENXIO; 347 goto done; 348 } 349 /* 350 * If drive is open `raw' or reading label, let it at it. 351 */ 352 if (ra->ra_state == DK_RDLABEL) { 353 /* Make some statistics... /bqt */ 354 b = splbio(); 355 disk_busy(&ra->ra_disk); 356 splx(b); 357 mscp_strategy(bp, device_parent(ra->ra_dev)); 358 return; 359 } 360 361 /* If disk is not online, try to put it online */ 362 if (ra->ra_state == DK_CLOSED) 363 if (ra_putonline(bp->b_dev, ra) == MSCP_FAILED) { 364 bp->b_error = EIO; 365 goto done; 366 } 367 368 /* 369 * Determine the size of the transfer, and make sure it is 370 * within the boundaries of the partition. 371 */ 372 if (bounds_check_with_label(&ra->ra_disk, bp, ra->ra_wlabel) <= 0) 373 goto done; 374 375 /* Make some statistics... /bqt */ 376 b = splbio(); 377 disk_busy(&ra->ra_disk); 378 splx(b); 379 mscp_strategy(bp, device_parent(ra->ra_dev)); 380 return; 381 382 done: 383 biodone(bp); 384 } 385 386 int 387 raread(dev_t dev, struct uio *uio, int flags) 388 { 389 390 return (physio(rastrategy, NULL, dev, B_READ, minphys, uio)); 391 } 392 393 int 394 rawrite(dev_t dev, struct uio *uio, int flags) 395 { 396 397 return (physio(rastrategy, NULL, dev, B_WRITE, minphys, uio)); 398 } 399 400 /* 401 * I/O controls. 402 */ 403 int 404 raioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 405 { 406 struct disklabel *lp, *tp; 407 struct ra_softc *ra = mscp_device_lookup(dev); 408 int error; 409 #ifdef __HAVE_OLD_DISKLABEL 410 struct disklabel newlabel; 411 #endif 412 413 lp = ra->ra_disk.dk_label; 414 415 error = disk_ioctl(&ra->ra_disk, dev, cmd, data, flag, l); 416 if (error != EPASSTHROUGH) 417 return error; 418 else 419 error = 0; 420 421 switch (cmd) { 422 case DIOCWDINFO: 423 case DIOCSDINFO: 424 #ifdef __HAVE_OLD_DISKLABEL 425 case ODIOCWDINFO: 426 case ODIOCSDINFO: 427 if (cmd == ODIOCSDINFO || cmd == ODIOCWDINFO) { 428 memset(&newlabel, 0, sizeof newlabel); 429 memcpy(&newlabel, data, sizeof (struct olddisklabel)); 430 tp = &newlabel; 431 } else 432 #endif 433 tp = (struct disklabel *)data; 434 435 if ((flag & FWRITE) == 0) 436 error = EBADF; 437 else { 438 mutex_enter(&ra->ra_disk.dk_openlock); 439 error = setdisklabel(lp, tp, 0, 0); 440 if ((error == 0) && (cmd == DIOCWDINFO 441 #ifdef __HAVE_OLD_DISKLABEL 442 || cmd == ODIOCWDINFO 443 #endif 444 )) { 445 ra->ra_wlabel = 1; 446 error = writedisklabel(dev, rastrategy, lp,0); 447 ra->ra_wlabel = 0; 448 } 449 mutex_exit(&ra->ra_disk.dk_openlock); 450 } 451 break; 452 453 case DIOCWLABEL: 454 if ((flag & FWRITE) == 0) 455 error = EBADF; 456 else 457 ra->ra_wlabel = 1; 458 break; 459 460 case DIOCGDEFLABEL: 461 #ifdef __HAVE_OLD_DISKLABEL 462 case ODIOCGDEFLABEL: 463 if (cmd == ODIOCGDEFLABEL) 464 tp = &newlabel; 465 else 466 #endif 467 tp = (struct disklabel *)data; 468 memset(tp, 0, sizeof(struct disklabel)); 469 tp->d_secsize = lp->d_secsize; 470 tp->d_nsectors = lp->d_nsectors; 471 tp->d_ntracks = lp->d_ntracks; 472 tp->d_ncylinders = lp->d_ncylinders; 473 tp->d_secpercyl = lp->d_secpercyl; 474 tp->d_secperunit = lp->d_secperunit; 475 tp->d_type = DKTYPE_MSCP; 476 tp->d_rpm = 3600; 477 rrmakelabel(tp, ra->ra_mediaid); 478 #ifdef __HAVE_OLD_DISKLABEL 479 if (cmd == ODIOCGDEFLABEL) { 480 if (tp->d_npartitions > OLDMAXPARTITIONS) 481 return ENOTTY; 482 memcpy(data, tp, sizeof (struct olddisklabel)); 483 } 484 #endif 485 break; 486 487 default: 488 error = ENOTTY; 489 break; 490 } 491 return (error); 492 } 493 494 int 495 radump(dev_t dev, daddr_t blkno, void *va, size_t size) 496 { 497 return ENXIO; 498 } 499 500 /* 501 * Return the size of a partition, if known, or -1 if not. 502 */ 503 int 504 rasize(dev_t dev) 505 { 506 struct ra_softc *ra = mscp_device_lookup(dev); 507 508 if (!ra) 509 return -1; 510 511 if (ra->ra_state == DK_CLOSED) 512 if (ra_putonline(dev, ra) == MSCP_FAILED) 513 return -1; 514 515 return ra->ra_disk.dk_label->d_partitions[DISKPART(dev)].p_size * 516 (ra->ra_disk.dk_label->d_secsize / DEV_BSIZE); 517 } 518 519 #endif /* NRA || NRACD || NRX */ 520 521 #if NRX 522 523 int rxmatch(device_t, cfdata_t, void *); 524 525 CFATTACH_DECL_NEW(rx, sizeof(struct rx_softc), 526 rxmatch, raattach, NULL, NULL); 527 528 dev_type_open(rxopen); 529 dev_type_read(rxread); 530 dev_type_write(rxwrite); 531 dev_type_ioctl(rxioctl); 532 dev_type_strategy(rxstrategy); 533 dev_type_dump(radump); 534 dev_type_size(rxsize); 535 536 const struct bdevsw rx_bdevsw = { 537 .d_open = rxopen, 538 .d_close = nullclose, 539 .d_strategy = rxstrategy, 540 .d_ioctl = rxioctl, 541 .d_dump = radump, 542 .d_psize = rxsize, 543 .d_discard = nodiscard, 544 .d_flag = D_DISK 545 }; 546 547 const struct cdevsw rx_cdevsw = { 548 .d_open = rxopen, 549 .d_close = nullclose, 550 .d_read = rxread, 551 .d_write = rxwrite, 552 .d_ioctl = rxioctl, 553 .d_stop = nostop, 554 .d_tty = notty, 555 .d_poll = nopoll, 556 .d_mmap = nommap, 557 .d_kqfilter = nokqfilter, 558 .d_discard = nodiscard, 559 .d_flag = D_DISK 560 }; 561 562 static struct dkdriver rxdkdriver = { 563 rxstrategy, minphys 564 }; 565 566 /* 567 * More driver definitions, for generic MSCP code. 568 */ 569 570 int 571 rxmatch(device_t parent, cfdata_t cf, void *aux) 572 { 573 struct drive_attach_args *da = aux; 574 struct mscp *mp = da->da_mp; 575 576 if ((da->da_typ & MSCPBUS_DISK) == 0) 577 return 0; 578 if (cf->cf_loc[MSCPBUSCF_DRIVE] != MSCPBUSCF_DRIVE_DEFAULT && 579 cf->cf_loc[MSCPBUSCF_DRIVE] != mp->mscp_unit) 580 return 0; 581 /* 582 * Check if this disk is a floppy (RX) 583 * Seems to be a safe way to test it per Chris Torek. 584 */ 585 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'X' - '@') 586 return 1; 587 return 0; 588 } 589 590 #endif /* NRX */ 591 592 #if NRACD 593 594 /* Use almost all ra* routines for racd */ 595 596 int racdmatch(device_t, cfdata_t, void *); 597 598 CFATTACH_DECL_NEW(racd, sizeof(struct racd_softc), 599 racdmatch, raattach, NULL, NULL); 600 601 dev_type_open(raopen); 602 dev_type_read(raread); 603 dev_type_write(rawrite); 604 dev_type_ioctl(raioctl); 605 dev_type_strategy(rastrategy); 606 dev_type_dump(radump); 607 dev_type_size(rasize); 608 609 const struct bdevsw racd_bdevsw = { 610 .d_open = raopen, 611 .d_close = nullclose, 612 .d_strategy = rastrategy, 613 .d_ioctl = raioctl, 614 .d_dump = radump, 615 .d_psize = rasize, 616 .d_discard = nodiscard, 617 .d_flag = D_DISK 618 }; 619 620 const struct cdevsw racd_cdevsw = { 621 .d_open = raopen, 622 .d_close = nullclose, 623 .d_read = raread, 624 .d_write = rawrite, 625 .d_ioctl = raioctl, 626 .d_stop = nostop, 627 .d_tty = notty, 628 .d_poll = nopoll, 629 .d_mmap = nommap, 630 .d_kqfilter = nokqfilter, 631 .d_discard = nodiscard, 632 .d_flag = D_DISK 633 }; 634 635 static struct dkdriver racddkdriver = { 636 rastrategy, minphys 637 }; 638 639 /* 640 * More driver definitions, for generic MSCP code. 641 */ 642 643 int 644 racdmatch(device_t parent, cfdata_t cf, void *aux) 645 { 646 struct drive_attach_args *da = aux; 647 struct mscp *mp = da->da_mp; 648 649 if ((da->da_typ & MSCPBUS_DISK) == 0) 650 return 0; 651 if (cf->cf_loc[MSCPBUSCF_DRIVE] != MSCPBUSCF_DRIVE_DEFAULT && 652 cf->cf_loc[MSCPBUSCF_DRIVE] != mp->mscp_unit) 653 return 0; 654 /* 655 * Check if this disk is a CD (RRD) 656 */ 657 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'R' - '@') 658 return 1; 659 return 0; 660 } 661 662 #endif /* NRACD */ 663 664 /* 665 * The attach routine only checks and prints drive type. 666 * Bringing the disk online is done when the disk is accessed 667 * the first time. 668 */ 669 void 670 raattach(device_t parent, device_t self, void *aux) 671 { 672 struct rx_softc *rx = device_private(self); 673 struct drive_attach_args *da = aux; 674 struct mscp *mp = da->da_mp; 675 struct mscp_softc *mi = device_private(parent); 676 struct disklabel *dl; 677 678 rx->ra_dev = self; 679 rx->ra_mediaid = mp->mscp_guse.guse_mediaid; 680 rx->ra_state = DK_CLOSED; 681 rx->ra_hwunit = mp->mscp_unit; 682 mi->mi_dp[mp->mscp_unit] = self; 683 684 #if NRX 685 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'X' - '@') 686 disk_init((struct disk *)&rx->ra_disk, device_xname(rx->ra_dev), 687 &rxdkdriver); 688 #endif 689 #if NRACD 690 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) == 'R' - '@') 691 disk_init((struct disk *)&rx->ra_disk, device_xname(rx->ra_dev), 692 &racddkdriver); 693 #endif 694 #if NRA 695 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) != 'X' - '@' && 696 MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) != 'R' - '@') 697 disk_init((struct disk *)&rx->ra_disk, device_xname(rx->ra_dev), 698 &radkdriver); 699 #endif 700 disk_attach(&rx->ra_disk); 701 702 /* Fill in what we know. The actual size is gotten later */ 703 dl = rx->ra_disk.dk_label; 704 705 dl->d_secsize = DEV_BSIZE; 706 dl->d_nsectors = mp->mscp_guse.guse_nspt; 707 dl->d_ntracks = mp->mscp_guse.guse_ngpc * mp->mscp_guse.guse_group; 708 dl->d_secpercyl = dl->d_nsectors * dl->d_ntracks; 709 disk_printtype(mp->mscp_unit, mp->mscp_guse.guse_mediaid); 710 #ifdef DEBUG 711 printf("%s: nspt %d group %d ngpc %d rct %d nrpt %d nrct %d\n", 712 device_xname(self), mp->mscp_guse.guse_nspt, mp->mscp_guse.guse_group, 713 mp->mscp_guse.guse_ngpc, mp->mscp_guse.guse_rctsize, 714 mp->mscp_guse.guse_nrpt, mp->mscp_guse.guse_nrct); 715 #endif 716 if (MSCP_MID_ECH(1, mp->mscp_guse.guse_mediaid) != 'X' - '@') { 717 /* 718 * XXX We should try to discover wedges here, but 719 * XXX that would mean being able to do I/O. Should 720 * XXX use config_defer() here. 721 */ 722 } 723 } 724 725 /* 726 * (Try to) put the drive online. This is done the first time the 727 * drive is opened, or if it har fallen offline. 728 */ 729 int 730 rx_putonline(struct rx_softc *rx) 731 { 732 struct mscp *mp; 733 struct mscp_softc *mi = device_private(device_parent(rx->ra_dev)); 734 735 rx->ra_state = DK_CLOSED; 736 mp = mscp_getcp(mi, MSCP_WAIT); 737 mp->mscp_opcode = M_OP_ONLINE; 738 mp->mscp_unit = rx->ra_hwunit; 739 mp->mscp_cmdref = 1; 740 *mp->mscp_addr |= MSCP_OWN | MSCP_INT; 741 742 /* Poll away */ 743 bus_space_read_2(mi->mi_iot, mi->mi_iph, 0); 744 if (tsleep(&rx->ra_state, PRIBIO, "rxonline", 100*100)) 745 rx->ra_state = DK_CLOSED; 746 747 if (rx->ra_state == DK_CLOSED) 748 return MSCP_FAILED; 749 750 return MSCP_DONE; 751 } 752 753 #if NRX 754 755 /* 756 * Open a drive. 757 */ 758 /*ARGSUSED*/ 759 int 760 rxopen(dev_t dev, int flag, int fmt, struct lwp *l) 761 { 762 struct rx_softc *rx; 763 int unit; 764 765 /* 766 * Make sure this is a reasonable open request. 767 */ 768 unit = DISKUNIT(dev); 769 rx = device_lookup_private(&rx_cd, unit); 770 if (!rx) 771 return ENXIO; 772 773 /* 774 * If this is the first open; we must first try to put 775 * the disk online (and read the label). 776 */ 777 if (rx->ra_state == DK_CLOSED) 778 if (rx_putonline(rx) == MSCP_FAILED) 779 return ENXIO; 780 781 return 0; 782 } 783 784 /* 785 * Queue a transfer request, and if possible, hand it to the controller. 786 * 787 * This routine is broken into two so that the internal version 788 * udastrat1() can be called by the (nonexistent, as yet) bad block 789 * revectoring routine. 790 */ 791 void 792 rxstrategy(struct buf *bp) 793 { 794 int unit; 795 struct rx_softc *rx; 796 int b; 797 798 /* 799 * Make sure this is a reasonable drive to use. 800 */ 801 unit = DISKUNIT(bp->b_dev); 802 if ((rx = device_lookup_private(&rx_cd, unit)) == NULL) { 803 bp->b_error = ENXIO; 804 goto done; 805 } 806 807 /* If disk is not online, try to put it online */ 808 if (rx->ra_state == DK_CLOSED) 809 if (rx_putonline(rx) == MSCP_FAILED) { 810 bp->b_error = EIO; 811 goto done; 812 } 813 814 /* 815 * Determine the size of the transfer, and make sure it is 816 * within the boundaries of the partition. 817 */ 818 if (bp->b_blkno >= rx->ra_disk.dk_label->d_secperunit) { 819 bp->b_resid = bp->b_bcount; 820 goto done; 821 } 822 823 /* Make some statistics... /bqt */ 824 b = splbio(); 825 disk_busy(&rx->ra_disk); 826 splx(b); 827 mscp_strategy(bp, device_parent(rx->ra_dev)); 828 return; 829 830 done: 831 biodone(bp); 832 } 833 834 int 835 rxread(dev_t dev, struct uio *uio, int flag) 836 { 837 838 return (physio(rxstrategy, NULL, dev, B_READ, minphys, uio)); 839 } 840 841 int 842 rxwrite(dev_t dev, struct uio *uio, int flag) 843 { 844 845 return (physio(rxstrategy, NULL, dev, B_WRITE, minphys, uio)); 846 } 847 848 /* 849 * I/O controls. 850 */ 851 int 852 rxioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 853 { 854 int unit = DISKUNIT(dev); 855 struct rx_softc *rx = device_lookup_private(&rx_cd, unit); 856 int error; 857 858 error = disk_ioctl(&rx->ra_disk, dev, cmd, data, flag, l); 859 if (error != EPASSTHROUGH) 860 return error; 861 else 862 error = 0; 863 864 switch (cmd) { 865 case DIOCWDINFO: 866 case DIOCSDINFO: 867 case DIOCWLABEL: 868 break; 869 870 default: 871 error = ENOTTY; 872 break; 873 } 874 return (error); 875 } 876 877 int 878 rxsize(dev_t dev) 879 { 880 881 return -1; 882 } 883 884 #endif /* NRX */ 885 886 void rrdgram(device_t, struct mscp *, struct mscp_softc *); 887 void rriodone(device_t, struct buf *); 888 int rronline(device_t, struct mscp *); 889 int rrgotstatus(device_t, struct mscp *); 890 void rrreplace(device_t, struct mscp *); 891 int rrioerror(device_t, struct mscp *, struct buf *); 892 void rrfillin(struct buf *, struct mscp *); 893 void rrbb(device_t, struct mscp *, struct buf *); 894 895 896 struct mscp_device ra_device = { 897 rrdgram, 898 rriodone, 899 rronline, 900 rrgotstatus, 901 rrreplace, 902 rrioerror, 903 rrbb, 904 rrfillin, 905 }; 906 907 /* 908 * Handle an error datagram. 909 * This can come from an unconfigured drive as well. 910 */ 911 void 912 rrdgram(device_t usc, struct mscp *mp, struct mscp_softc *mi) 913 { 914 if (mscp_decodeerror(usc == NULL?"unconf disk" : device_xname(usc), mp, mi)) 915 return; 916 /* 917 * SDI status information bytes 10 and 11 are the microprocessor 918 * error code and front panel code respectively. These vary per 919 * drive type and are printed purely for field service information. 920 */ 921 if (mp->mscp_format == M_FM_SDI) 922 printf("\tsdi uproc error code 0x%x, front panel code 0x%x\n", 923 mp->mscp_erd.erd_sdistat[10], 924 mp->mscp_erd.erd_sdistat[11]); 925 } 926 927 928 void 929 rriodone(device_t usc, struct buf *bp) 930 { 931 struct ra_softc *ra = device_private(usc); 932 933 disk_unbusy(&ra->ra_disk, bp->b_bcount, (bp->b_flags & B_READ)); 934 935 biodone(bp); 936 } 937 938 /* 939 * A drive came on line. Check its type and size. Return DONE if 940 * we think the drive is truly on line. In any case, awaken anyone 941 * sleeping on the drive on-line-ness. 942 */ 943 int 944 rronline(device_t usc, struct mscp *mp) 945 { 946 struct ra_softc *ra = device_private(usc); 947 struct disklabel *dl; 948 949 wakeup((void *)&ra->ra_state); 950 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 951 aprint_error_dev(usc, "attempt to bring on line failed: "); 952 mscp_printevent(mp); 953 return (MSCP_FAILED); 954 } 955 956 ra->ra_state = DK_OPEN; 957 958 dl = ra->ra_disk.dk_label; 959 dl->d_secperunit = (daddr_t)mp->mscp_onle.onle_unitsize; 960 961 if (dl->d_secpercyl) { 962 dl->d_ncylinders = dl->d_secperunit/dl->d_secpercyl; 963 dl->d_type = DKTYPE_MSCP; 964 dl->d_rpm = 3600; 965 } else { 966 dl->d_type = DKTYPE_FLOPPY; 967 dl->d_rpm = 300; 968 } 969 rrmakelabel(dl, ra->ra_mediaid); 970 971 return (MSCP_DONE); 972 } 973 974 void 975 rrmakelabel(struct disklabel *dl, long type) 976 { 977 int n, p = 0; 978 979 dl->d_bbsize = BBSIZE; 980 dl->d_sbsize = SBLOCKSIZE; 981 982 /* Create the disk name for disklabel. Phew... */ 983 dl->d_typename[p++] = MSCP_MID_CHAR(2, type); 984 dl->d_typename[p++] = MSCP_MID_CHAR(1, type); 985 if (MSCP_MID_ECH(0, type)) 986 dl->d_typename[p++] = MSCP_MID_CHAR(0, type); 987 n = MSCP_MID_NUM(type); 988 if (n > 99) { 989 dl->d_typename[p++] = '1'; 990 n -= 100; 991 } 992 if (n > 9) { 993 dl->d_typename[p++] = (n / 10) + '0'; 994 n %= 10; 995 } 996 dl->d_typename[p++] = n + '0'; 997 dl->d_typename[p] = 0; 998 dl->d_npartitions = MAXPARTITIONS; 999 dl->d_partitions[0].p_size = dl->d_partitions[2].p_size = 1000 dl->d_secperunit; 1001 dl->d_partitions[0].p_offset = dl->d_partitions[2].p_offset = 0; 1002 dl->d_interleave = dl->d_headswitch = 1; 1003 dl->d_magic = dl->d_magic2 = DISKMAGIC; 1004 dl->d_checksum = dkcksum(dl); 1005 } 1006 1007 /* 1008 * We got some (configured) unit's status. Return DONE if it succeeded. 1009 */ 1010 int 1011 rrgotstatus(device_t usc, struct mscp *mp) 1012 { 1013 if ((mp->mscp_status & M_ST_MASK) != M_ST_SUCCESS) { 1014 aprint_error_dev(usc, "attempt to get status failed: "); 1015 mscp_printevent(mp); 1016 return (MSCP_FAILED); 1017 } 1018 /* record for (future) bad block forwarding and whatever else */ 1019 #ifdef notyet 1020 uda_rasave(ui->ui_unit, mp, 1); 1021 #endif 1022 return (MSCP_DONE); 1023 } 1024 1025 /* 1026 * A replace operation finished. 1027 */ 1028 /*ARGSUSED*/ 1029 void 1030 rrreplace(device_t usc, struct mscp *mp) 1031 { 1032 1033 panic("udareplace"); 1034 } 1035 1036 /* 1037 * A transfer failed. We get a chance to fix or restart it. 1038 * Need to write the bad block forwaring code first.... 1039 */ 1040 /*ARGSUSED*/ 1041 int 1042 rrioerror(device_t usc, struct mscp *mp, struct buf *bp) 1043 { 1044 struct ra_softc *ra = device_private(usc); 1045 int code = mp->mscp_event; 1046 1047 switch (code & M_ST_MASK) { 1048 /* The unit has fallen offline. Try to figure out why. */ 1049 case M_ST_OFFLINE: 1050 bp->b_error = EIO; 1051 ra->ra_state = DK_CLOSED; 1052 if (code & M_OFFLINE_UNMOUNTED) 1053 aprint_error_dev(usc, "not mounted/spun down\n"); 1054 if (code & M_OFFLINE_DUPLICATE) 1055 aprint_error_dev(usc, "duplicate unit number!!!\n"); 1056 return MSCP_DONE; 1057 1058 case M_ST_AVAILABLE: 1059 ra->ra_state = DK_CLOSED; /* Force another online */ 1060 return MSCP_DONE; 1061 1062 default: 1063 printf("%s:", device_xname(usc)); 1064 break; 1065 } 1066 return (MSCP_FAILED); 1067 } 1068 1069 /* 1070 * Fill in disk addresses in a mscp packet waiting for transfer. 1071 */ 1072 void 1073 rrfillin(struct buf *bp, struct mscp *mp) 1074 { 1075 struct ra_softc *ra; 1076 struct disklabel *lp; 1077 int part = DISKPART(bp->b_dev); 1078 1079 ra = mscp_device_lookup(bp->b_dev); 1080 lp = ra->ra_disk.dk_label; 1081 1082 mp->mscp_seq.seq_lbn = lp->d_partitions[part].p_offset + bp->b_blkno; 1083 mp->mscp_unit = ra->ra_hwunit; 1084 mp->mscp_seq.seq_bytecount = bp->b_bcount; 1085 } 1086 1087 /* 1088 * A bad block related operation finished. 1089 */ 1090 /*ARGSUSED*/ 1091 void 1092 rrbb(device_t usc, struct mscp *mp, struct buf *bp) 1093 { 1094 1095 panic("udabb"); 1096 } 1097 1098 /* 1099 * (Try to) put the drive online. This is done the first time the 1100 * drive is opened, or if it has fallen offline. 1101 */ 1102 int 1103 ra_putonline(dev_t dev, struct ra_softc *ra) 1104 { 1105 struct disklabel *dl; 1106 const char *msg; 1107 1108 if (rx_putonline(ra) != MSCP_DONE) 1109 return MSCP_FAILED; 1110 1111 dl = ra->ra_disk.dk_label; 1112 1113 ra->ra_state = DK_RDLABEL; 1114 printf("%s", device_xname(ra->ra_dev)); 1115 if ((msg = readdisklabel( 1116 MAKEDISKDEV(major(dev), device_unit(ra->ra_dev), RAW_PART), 1117 rastrategy, dl, NULL)) == NULL) { 1118 ra->ra_havelabel = 1; 1119 ra->ra_state = DK_OPEN; 1120 } 1121 #if NRACD 1122 else if (cdevsw_lookup(dev) == &racd_cdevsw) { 1123 dl->d_partitions[0].p_offset = 0; 1124 dl->d_partitions[0].p_size = dl->d_secperunit; 1125 dl->d_partitions[0].p_fstype = FS_ISO9660; 1126 } 1127 #endif /* NRACD */ 1128 else { 1129 printf(": %s", msg); 1130 } 1131 1132 printf(": size %d sectors\n", dl->d_secperunit); 1133 1134 return MSCP_DONE; 1135 } 1136 1137 1138 static inline struct ra_softc * 1139 mscp_device_lookup(dev_t dev) 1140 { 1141 struct ra_softc *ra; 1142 int unit; 1143 1144 unit = DISKUNIT(dev); 1145 #if NRA 1146 if (cdevsw_lookup(dev) == &ra_cdevsw) 1147 ra = device_lookup_private(&ra_cd, unit); 1148 else 1149 #endif 1150 #if NRACD 1151 if (cdevsw_lookup(dev) == &racd_cdevsw) 1152 ra = device_lookup_private(&racd_cd, unit); 1153 else 1154 #endif 1155 #if NRX 1156 if (cdevsw_lookup(dev) == &rx_cdevsw) 1157 ra = device_lookup_private(&rx_cd, unit); 1158 else 1159 #endif 1160 panic("mscp_device_lookup: unexpected major %"PRIu32" unit %u", 1161 major(dev), unit); 1162 return ra; 1163 } 1164
Indexes created Tue Sep 30 20:09:53 GMT 2025