1 /* $NetBSD: rd.c,v 1.17 2007/07/29 12:15:43 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 1996-2003 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Jason R. Thorpe. 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 NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1982, 1990, 1993 41 * The Regents of the University of California. All rights reserved. 42 * 43 * This code is derived from software contributed to Berkeley by 44 * the Systems Programming Group of the University of Utah Computer 45 * Science Department. 46 * 47 * Redistribution and use in source and binary forms, with or without 48 * modification, are permitted provided that the following conditions 49 * are met: 50 * 1. Redistributions of source code must retain the above copyright 51 * notice, this list of conditions and the following disclaimer. 52 * 2. Redistributions in binary form must reproduce the above copyright 53 * notice, this list of conditions and the following disclaimer in the 54 * documentation and/or other materials provided with the distribution. 55 * 3. Neither the name of the University nor the names of its contributors 56 * may be used to endorse or promote products derived from this software 57 * without specific prior written permission. 58 * 59 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 60 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 61 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 62 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 63 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 64 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 65 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 66 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 67 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 68 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 69 * SUCH DAMAGE. 70 * 71 * from: Utah $Hdr: rd.c 1.44 92/12/26$ 72 * 73 * @(#)rd.c 8.2 (Berkeley) 5/19/94 74 */ 75 76 /* 77 * Copyright (c) 1988 University of Utah. 78 * 79 * This code is derived from software contributed to Berkeley by 80 * the Systems Programming Group of the University of Utah Computer 81 * Science Department. 82 * 83 * Redistribution and use in source and binary forms, with or without 84 * modification, are permitted provided that the following conditions 85 * are met: 86 * 1. Redistributions of source code must retain the above copyright 87 * notice, this list of conditions and the following disclaimer. 88 * 2. Redistributions in binary form must reproduce the above copyright 89 * notice, this list of conditions and the following disclaimer in the 90 * documentation and/or other materials provided with the distribution. 91 * 3. All advertising materials mentioning features or use of this software 92 * must display the following acknowledgement: 93 * This product includes software developed by the University of 94 * California, Berkeley and its contributors. 95 * 4. Neither the name of the University nor the names of its contributors 96 * may be used to endorse or promote products derived from this software 97 * without specific prior written permission. 98 * 99 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 100 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 101 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 102 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 103 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 104 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 105 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 106 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 107 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 108 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 109 * SUCH DAMAGE. 110 * 111 * from: Utah $Hdr: rd.c 1.44 92/12/26$ 112 * 113 * @(#)rd.c 8.2 (Berkeley) 5/19/94 114 */ 115 116 /* 117 * CS80/SS80 disk driver 118 */ 119 120 #include <sys/cdefs.h> 121 __KERNEL_RCSID(0, "$NetBSD: rd.c,v 1.17 2007/07/29 12:15:43 ad Exp $"); 122 123 #include "rnd.h" 124 125 #include <sys/param.h> 126 #include <sys/systm.h> 127 #include <sys/buf.h> 128 #include <sys/bufq.h> 129 #include <sys/callout.h> 130 #include <sys/conf.h> 131 #include <sys/device.h> 132 #include <sys/disk.h> 133 #include <sys/disklabel.h> 134 #include <sys/endian.h> 135 #include <sys/fcntl.h> 136 #include <sys/ioctl.h> 137 #include <sys/proc.h> 138 #include <sys/stat.h> 139 140 #if NRND > 0 141 #include <sys/rnd.h> 142 #endif 143 144 #include <dev/gpib/gpibvar.h> 145 #include <dev/gpib/cs80busvar.h> 146 147 #include <dev/gpib/rdreg.h> 148 149 #ifdef DEBUG 150 int rddebug = 0xff; 151 #define RDB_FOLLOW 0x01 152 #define RDB_STATUS 0x02 153 #define RDB_IDENT 0x04 154 #define RDB_IO 0x08 155 #define RDB_ASYNC 0x10 156 #define RDB_ERROR 0x80 157 #define DPRINTF(mask, str) if (rddebug & (mask)) printf str 158 #else 159 #define DPRINTF(mask, str) /* nothing */ 160 #endif 161 162 struct rd_softc { 163 struct device sc_dev; 164 gpib_chipset_tag_t sc_ic; 165 gpib_handle_t sc_hdl; 166 167 struct disk sc_dk; 168 169 int sc_slave; /* GPIB slave */ 170 int sc_punit; /* physical unit on slave */ 171 172 int sc_flags; 173 #define RDF_ALIVE 0x01 174 #define RDF_SEEK 0x02 175 #define RDF_SWAIT 0x04 176 #define RDF_OPENING 0x08 177 #define RDF_CLOSING 0x10 178 #define RDF_WANTED 0x20 179 #define RDF_WLABEL 0x40 180 181 u_int16_t sc_type; 182 u_int8_t *sc_addr; 183 int sc_resid; 184 struct rd_iocmd sc_ioc; 185 struct bufq_state *sc_tab; 186 int sc_active; 187 int sc_errcnt; 188 189 struct callout sc_restart_ch; 190 191 #if NRND > 0 192 rndsource_element_t rnd_source; 193 #endif 194 }; 195 196 #define RDUNIT(dev) DISKUNIT(dev) 197 #define RDPART(dev) DISKPART(dev) 198 #define RDMAKEDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 199 #define RDLABELDEV(dev) (RDMAKEDEV(major(dev), RDUNIT(dev), RAW_PART)) 200 201 #define RDRETRY 5 202 #define RDWAITC 1 /* min time for timeout in seconds */ 203 204 int rderrthresh = RDRETRY-1; /* when to start reporting errors */ 205 206 /* 207 * Misc. HW description, indexed by sc_type. 208 * Used for mapping 256-byte sectors for 512-byte sectors 209 */ 210 const struct rdidentinfo { 211 u_int16_t ri_hwid; /* 2 byte HW id */ 212 u_int16_t ri_maxunum; /* maximum allowed unit number */ 213 const char *ri_desc; /* drive type description */ 214 int ri_nbpt; /* DEV_BSIZE blocks per track */ 215 int ri_ntpc; /* tracks per cylinder */ 216 int ri_ncyl; /* cylinders per unit */ 217 int ri_nblocks; /* DEV_BSIZE blocks on disk */ 218 } rdidentinfo[] = { 219 { RD7946AID, 0, "7945A", NRD7945ABPT, 220 NRD7945ATRK, 968, 108416 }, 221 222 { RD9134DID, 1, "9134D", NRD9134DBPT, 223 NRD9134DTRK, 303, 29088 }, 224 225 { RD9134LID, 1, "9122S", NRD9122SBPT, 226 NRD9122STRK, 77, 1232 }, 227 228 { RD7912PID, 0, "7912P", NRD7912PBPT, 229 NRD7912PTRK, 572, 128128 }, 230 231 { RD7914PID, 0, "7914P", NRD7914PBPT, 232 NRD7914PTRK, 1152, 258048 }, 233 234 { RD7958AID, 0, "7958A", NRD7958ABPT, 235 NRD7958ATRK, 1013, 255276 }, 236 237 { RD7957AID, 0, "7957A", NRD7957ABPT, 238 NRD7957ATRK, 1036, 159544 }, 239 240 { RD7933HID, 0, "7933H", NRD7933HBPT, 241 NRD7933HTRK, 1321, 789958 }, 242 243 { RD9134LID, 1, "9134L", NRD9134LBPT, 244 NRD9134LTRK, 973, 77840 }, 245 246 { RD7936HID, 0, "7936H", NRD7936HBPT, 247 NRD7936HTRK, 698, 600978 }, 248 249 { RD7937HID, 0, "7937H", NRD7937HBPT, 250 NRD7937HTRK, 698, 1116102 }, 251 252 { RD7914CTID, 0, "7914CT", NRD7914PBPT, 253 NRD7914PTRK, 1152, 258048 }, 254 255 { RD7946AID, 0, "7946A", NRD7945ABPT, 256 NRD7945ATRK, 968, 108416 }, 257 258 { RD9134LID, 1, "9122D", NRD9122SBPT, 259 NRD9122STRK, 77, 1232 }, 260 261 { RD7957BID, 0, "7957B", NRD7957BBPT, 262 NRD7957BTRK, 1269, 159894 }, 263 264 { RD7958BID, 0, "7958B", NRD7958BBPT, 265 NRD7958BTRK, 786, 297108 }, 266 267 { RD7959BID, 0, "7959B", NRD7959BBPT, 268 NRD7959BTRK, 1572, 594216 }, 269 270 { RD2200AID, 0, "2200A", NRD2200ABPT, 271 NRD2200ATRK, 1449, 654948 }, 272 273 { RD2203AID, 0, "2203A", NRD2203ABPT, 274 NRD2203ATRK, 1449, 1309896 } 275 }; 276 int numrdidentinfo = sizeof(rdidentinfo) / sizeof(rdidentinfo[0]); 277 278 int rdlookup(int, int, int); 279 int rdgetinfo(struct rd_softc *); 280 void rdrestart(void *); 281 struct buf *rdfinish(struct rd_softc *, struct buf *); 282 283 void rdgetcompatlabel(struct rd_softc *, struct disklabel *); 284 void rdgetdefaultlabel(struct rd_softc *, struct disklabel *); 285 void rdrestart(void *); 286 void rdustart(struct rd_softc *); 287 struct buf *rdfinish(struct rd_softc *, struct buf *); 288 void rdcallback(void *, int); 289 void rdstart(struct rd_softc *); 290 void rdintr(struct rd_softc *); 291 int rderror(struct rd_softc *); 292 293 int rdmatch(struct device *, struct cfdata *, void *); 294 void rdattach(struct device *, struct device *, void *); 295 296 CFATTACH_DECL(rd, sizeof(struct rd_softc), 297 rdmatch, rdattach, NULL, NULL); 298 299 300 dev_type_open(rdopen); 301 dev_type_close(rdclose); 302 dev_type_read(rdread); 303 dev_type_write(rdwrite); 304 dev_type_ioctl(rdioctl); 305 dev_type_strategy(rdstrategy); 306 dev_type_dump(rddump); 307 dev_type_size(rdsize); 308 309 const struct bdevsw rd_bdevsw = { 310 rdopen, rdclose, rdstrategy, rdioctl, rddump, rdsize, D_DISK 311 }; 312 313 const struct cdevsw rd_cdevsw = { 314 rdopen, rdclose, rdread, rdwrite, rdioctl, 315 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 316 }; 317 318 extern struct cfdriver rd_cd; 319 320 int 321 rdlookup(id, slave, punit) 322 int id; 323 int slave; 324 int punit; 325 { 326 int i; 327 328 for (i = 0; i < numrdidentinfo; i++) { 329 if (rdidentinfo[i].ri_hwid == id) 330 break; 331 } 332 if (i == numrdidentinfo || punit > rdidentinfo[i].ri_maxunum) 333 return (-1); 334 return (i); 335 } 336 337 int 338 rdmatch(parent, match, aux) 339 struct device *parent; 340 struct cfdata *match; 341 void *aux; 342 { 343 struct cs80bus_attach_args *ca = aux; 344 345 if (rdlookup(ca->ca_id, ca->ca_slave, ca->ca_punit) < 0) 346 return (0); 347 return (1); 348 } 349 350 void 351 rdattach(parent, self, aux) 352 struct device *parent, *self; 353 void *aux; 354 { 355 struct rd_softc *sc = device_private(self); 356 struct cs80bus_attach_args *ca = aux; 357 struct cs80_description csd; 358 char name[7]; 359 int type, i, n; 360 361 sc->sc_ic = ca->ca_ic; 362 sc->sc_slave = ca->ca_slave; 363 sc->sc_punit = ca->ca_punit; 364 365 if ((type = rdlookup(ca->ca_id, ca->ca_slave, ca->ca_punit)) < 0) 366 return; 367 368 if (cs80reset(parent, sc->sc_slave, sc->sc_punit)) { 369 printf("\n%s: can't reset device\n", sc->sc_dev.dv_xname); 370 return; 371 } 372 373 if (cs80describe(parent, sc->sc_slave, sc->sc_punit, &csd)) { 374 printf("\n%s: didn't respond to describe command\n", 375 sc->sc_dev.dv_xname); 376 return; 377 } 378 memset(name, 0, sizeof(name)); 379 for (i=0, n=0; i<3; i++) { 380 name[n++] = (csd.d_name[i] >> 4) + '0'; 381 name[n++] = (csd.d_name[i] & 0x0f) + '0'; 382 } 383 384 #ifdef DEBUG 385 if (rddebug & RDB_IDENT) { 386 printf("\n%s: name: ('%s')\n", 387 sc->sc_dev.dv_xname, name); 388 printf(" iuw %x, maxxfr %d, ctype %d\n", 389 csd.d_iuw, csd.d_cmaxxfr, csd.d_ctype); 390 printf(" utype %d, bps %d, blkbuf %d, burst %d, blktime %d\n", 391 csd.d_utype, csd.d_sectsize, 392 csd.d_blkbuf, csd.d_burstsize, csd.d_blocktime); 393 printf(" avxfr %d, ort %d, atp %d, maxint %d, fv %x, rv %x\n", 394 csd.d_uavexfr, csd.d_retry, csd.d_access, 395 csd.d_maxint, csd.d_fvbyte, csd.d_rvbyte); 396 printf(" maxcyl/head/sect %d/%d/%d, maxvsect %d, inter %d\n", 397 csd.d_maxcylhead >> 8, csd.d_maxcylhead & 0xff, 398 csd.d_maxsect, csd.d_maxvsectl, csd.d_interleave); 399 printf("%s", sc->sc_dev.dv_xname); 400 } 401 #endif 402 403 /* 404 * Take care of a couple of anomolies: 405 * 1. 7945A and 7946A both return same HW id 406 * 2. 9122S and 9134D both return same HW id 407 * 3. 9122D and 9134L both return same HW id 408 */ 409 switch (ca->ca_id) { 410 case RD7946AID: 411 if (memcmp(name, "079450", 6) == 0) 412 type = RD7945A; 413 else 414 type = RD7946A; 415 break; 416 417 case RD9134LID: 418 if (memcmp(name, "091340", 6) == 0) 419 type = RD9134L; 420 else 421 type = RD9122D; 422 break; 423 424 case RD9134DID: 425 if (memcmp(name, "091220", 6) == 0) 426 type = RD9122S; 427 else 428 type = RD9134D; 429 break; 430 } 431 432 sc->sc_type = type; 433 434 /* 435 * XXX We use DEV_BSIZE instead of the sector size value pulled 436 * XXX off the driver because all of this code assumes 512 byte 437 * XXX blocks. ICK! 438 */ 439 printf(": %s\n", rdidentinfo[type].ri_desc); 440 printf("%s: %d cylinders, %d heads, %d blocks, %d bytes/block\n", 441 sc->sc_dev.dv_xname, rdidentinfo[type].ri_ncyl, 442 rdidentinfo[type].ri_ntpc, rdidentinfo[type].ri_nblocks, 443 DEV_BSIZE); 444 445 bufq_alloc(&sc->sc_tab, "fcfs", 0); 446 447 /* 448 * Initialize and attach the disk structure. 449 */ 450 memset(&sc->sc_dk, 0, sizeof(sc->sc_dk)); 451 sc->sc_dk.dk_name = sc->sc_dev.dv_xname; 452 disk_attach(&sc->sc_dk); 453 454 callout_init(&sc->sc_restart_ch, 0); 455 456 if (gpibregister(sc->sc_ic, sc->sc_slave, rdcallback, sc, 457 &sc->sc_hdl)) { 458 printf("%s: can't register callback\n", sc->sc_dev.dv_xname); 459 return; 460 } 461 462 sc->sc_flags = RDF_ALIVE; 463 #ifdef DEBUG 464 /* always report errors */ 465 if (rddebug & RDB_ERROR) 466 rderrthresh = 0; 467 #endif 468 #if NRND > 0 469 /* 470 * attach the device into the random source list 471 */ 472 rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname, 473 RND_TYPE_DISK, 0); 474 #endif 475 } 476 477 /* 478 * Read or construct a disklabel 479 */ 480 int 481 rdgetinfo(sc) 482 struct rd_softc *sc; 483 { 484 struct disklabel *lp = sc->sc_dk.dk_label; 485 struct partition *pi; 486 const char *msg; 487 488 memset(sc->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 489 490 rdgetdefaultlabel(sc, lp); 491 492 /* 493 * Call the generic disklabel extraction routine 494 */ 495 msg = readdisklabel(RDMAKEDEV(0, device_unit(&sc->sc_dev), RAW_PART), 496 rdstrategy, lp, NULL); 497 if (msg == NULL) 498 return (0); 499 500 pi = lp->d_partitions; 501 printf("%s: WARNING: %s\n", sc->sc_dev.dv_xname, msg); 502 503 pi[RAW_PART].p_size = rdidentinfo[sc->sc_type].ri_nblocks; 504 lp->d_npartitions = RAW_PART+1; 505 pi[0].p_size = 0; 506 507 return (0); 508 } 509 510 int 511 rdopen(dev, flags, mode, l) 512 dev_t dev; 513 int flags, mode; 514 struct lwp *l; 515 { 516 struct rd_softc *sc; 517 int error, mask, part; 518 519 sc = device_lookup(&rd_cd, RDUNIT(dev)); 520 if (sc == NULL || (sc->sc_flags & RDF_ALIVE) ==0) 521 return (ENXIO); 522 523 /* 524 * Wait for any pending opens/closes to complete 525 */ 526 while (sc->sc_flags & (RDF_OPENING | RDF_CLOSING)) 527 (void) tsleep(sc, PRIBIO, "rdopen", 0); 528 529 /* 530 * On first open, get label and partition info. 531 * We may block reading the label, so be careful 532 * to stop any other opens. 533 */ 534 if (sc->sc_dk.dk_openmask == 0) { 535 sc->sc_flags |= RDF_OPENING; 536 error = rdgetinfo(sc); 537 sc->sc_flags &= ~RDF_OPENING; 538 wakeup((void *)sc); 539 if (error) 540 return (error); 541 } 542 543 part = RDPART(dev); 544 mask = 1 << part; 545 546 /* Check that the partition exists. */ 547 if (part != RAW_PART && (part > sc->sc_dk.dk_label->d_npartitions || 548 sc->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) 549 return (ENXIO); 550 551 /* Ensure only one open at a time. */ 552 switch (mode) { 553 case S_IFCHR: 554 sc->sc_dk.dk_copenmask |= mask; 555 break; 556 case S_IFBLK: 557 sc->sc_dk.dk_bopenmask |= mask; 558 break; 559 } 560 sc->sc_dk.dk_openmask = 561 sc->sc_dk.dk_copenmask | sc->sc_dk.dk_bopenmask; 562 563 return (0); 564 } 565 566 int 567 rdclose(dev, flag, mode, l) 568 dev_t dev; 569 int flag, mode; 570 struct lwp *l; 571 { 572 struct rd_softc *sc; 573 struct disk *dk; 574 int mask, s; 575 576 sc = device_lookup(&rd_cd, RDUNIT(dev)); 577 if (sc == NULL) 578 return (ENXIO); 579 580 dk = &sc->sc_dk; 581 582 mask = 1 << RDPART(dev); 583 if (mode == S_IFCHR) 584 dk->dk_copenmask &= ~mask; 585 else 586 dk->dk_bopenmask &= ~mask; 587 dk->dk_openmask = dk->dk_copenmask | dk->dk_bopenmask; 588 /* 589 * On last close, we wait for all activity to cease since 590 * the label/parition info will become invalid. Since we 591 * might sleep, we must block any opens while we are here. 592 * Note we don't have to about other closes since we know 593 * we are the last one. 594 */ 595 if (dk->dk_openmask == 0) { 596 sc->sc_flags |= RDF_CLOSING; 597 s = splbio(); 598 while (sc->sc_active) { 599 sc->sc_flags |= RDF_WANTED; 600 (void) tsleep(&sc->sc_tab, PRIBIO, "rdclose", 0); 601 } 602 splx(s); 603 sc->sc_flags &= ~(RDF_CLOSING | RDF_WLABEL); 604 wakeup((void *)sc); 605 } 606 return (0); 607 } 608 609 void 610 rdstrategy(bp) 611 struct buf *bp; 612 { 613 struct rd_softc *sc; 614 struct partition *pinfo; 615 daddr_t bn; 616 int sz, s; 617 int offset; 618 619 sc = device_lookup(&rd_cd, RDUNIT(bp->b_dev)); 620 621 DPRINTF(RDB_FOLLOW, 622 ("rdstrategy(%p): dev %x, bn %" PRId64 ", bcount %ld, %c\n", 623 bp, bp->b_dev, bp->b_blkno, bp->b_bcount, 624 (bp->b_flags & B_READ) ? 'R' : 'W')); 625 626 bn = bp->b_blkno; 627 sz = howmany(bp->b_bcount, DEV_BSIZE); 628 pinfo = &sc->sc_dk.dk_label->d_partitions[RDPART(bp->b_dev)]; 629 630 /* Don't perform partition translation on RAW_PART. */ 631 offset = (RDPART(bp->b_dev) == RAW_PART) ? 0 : pinfo->p_offset; 632 633 if (RDPART(bp->b_dev) != RAW_PART) { 634 /* 635 * XXX This block of code belongs in 636 * XXX bounds_check_with_label() 637 */ 638 639 if (bn < 0 || bn + sz > pinfo->p_size) { 640 sz = pinfo->p_size - bn; 641 if (sz == 0) { 642 bp->b_resid = bp->b_bcount; 643 goto done; 644 } 645 if (sz < 0) { 646 bp->b_error = EINVAL; 647 goto done; 648 } 649 bp->b_bcount = dbtob(sz); 650 } 651 /* 652 * Check for write to write protected label 653 */ 654 if (bn + offset <= LABELSECTOR && 655 #if LABELSECTOR != 0 656 bn + offset + sz > LABELSECTOR && 657 #endif 658 !(bp->b_flags & B_READ) && !(sc->sc_flags & RDF_WLABEL)) { 659 bp->b_error = EROFS; 660 goto done; 661 } 662 } 663 bp->b_rawblkno = bn + offset; 664 s = splbio(); 665 BUFQ_PUT(sc->sc_tab, bp); 666 if (sc->sc_active == 0) { 667 sc->sc_active = 1; 668 rdustart(sc); 669 } 670 splx(s); 671 return; 672 done: 673 biodone(bp); 674 } 675 676 /* 677 * Called from timeout() when handling maintenance releases 678 * callout from timeouts 679 */ 680 void 681 rdrestart(arg) 682 void *arg; 683 { 684 int s = splbio(); 685 rdustart((struct rd_softc *)arg); 686 splx(s); 687 } 688 689 690 /* called by rdstrategy() to start a block transfer */ 691 /* called by rdrestart() when handingly timeouts */ 692 /* called by rdintr() */ 693 void 694 rdustart(sc) 695 struct rd_softc *sc; 696 { 697 struct buf *bp; 698 699 bp = BUFQ_PEEK(sc->sc_tab); 700 sc->sc_addr = bp->b_data; 701 sc->sc_resid = bp->b_bcount; 702 if (gpibrequest(sc->sc_ic, sc->sc_hdl)) 703 rdstart(sc); 704 } 705 706 struct buf * 707 rdfinish(sc, bp) 708 struct rd_softc *sc; 709 struct buf *bp; 710 { 711 712 sc->sc_errcnt = 0; 713 (void)BUFQ_GET(sc->sc_tab); 714 bp->b_resid = 0; 715 biodone(bp); 716 gpibrelease(sc->sc_ic, sc->sc_hdl); 717 if ((bp = BUFQ_PEEK(sc->sc_tab)) != NULL) 718 return (bp); 719 sc->sc_active = 0; 720 if (sc->sc_flags & RDF_WANTED) { 721 sc->sc_flags &= ~RDF_WANTED; 722 wakeup((void *)&sc->sc_tab); 723 } 724 return (NULL); 725 } 726 727 void 728 rdcallback(v, action) 729 void *v; 730 int action; 731 { 732 struct rd_softc *sc = v; 733 734 DPRINTF(RDB_FOLLOW, ("rdcallback: v=%p, action=%d\n", v, action)); 735 736 switch (action) { 737 case GPIBCBF_START: 738 rdstart(sc); 739 break; 740 case GPIBCBF_INTR: 741 rdintr(sc); 742 break; 743 #ifdef DEBUG 744 default: 745 DPRINTF(RDB_ERROR, ("rdcallback: unknown action %d\n", 746 action)); 747 break; 748 #endif 749 } 750 } 751 752 753 /* called from rdustart() to start a transfer */ 754 /* called from gpib interface as the initiator */ 755 void 756 rdstart(sc) 757 struct rd_softc *sc; 758 { 759 struct buf *bp = BUFQ_PEEK(sc->sc_tab); 760 int part, slave, punit; 761 762 slave = sc->sc_slave; 763 punit = sc->sc_punit; 764 765 DPRINTF(RDB_FOLLOW, ("rdstart(%s): bp %p, %c\n", 766 sc->sc_dev.dv_xname, bp, (bp->b_flags & B_READ) ? 'R' : 'W')); 767 768 again: 769 770 part = RDPART(bp->b_dev); 771 sc->sc_flags |= RDF_SEEK; 772 sc->sc_ioc.c_unit = CS80CMD_SUNIT(punit); 773 sc->sc_ioc.c_volume = CS80CMD_SVOL(0); 774 sc->sc_ioc.c_saddr = CS80CMD_SADDR; 775 sc->sc_ioc.c_hiaddr = htobe16(0); 776 sc->sc_ioc.c_addr = htobe32(RDBTOS(bp->b_rawblkno)); 777 sc->sc_ioc.c_nop2 = CS80CMD_NOP; 778 sc->sc_ioc.c_slen = CS80CMD_SLEN; 779 sc->sc_ioc.c_len = htobe32(sc->sc_resid); 780 sc->sc_ioc.c_cmd = bp->b_flags & B_READ ? CS80CMD_READ : CS80CMD_WRITE; 781 782 if (gpibsend(sc->sc_ic, slave, CS80CMD_SCMD, &sc->sc_ioc.c_unit, 783 sizeof(sc->sc_ioc)-1) == sizeof(sc->sc_ioc)-1) { 784 /* Instrumentation. */ 785 disk_busy(&sc->sc_dk); 786 iostat_seek(sc->sc_dk.dk_stats); 787 gpibawait(sc->sc_ic); 788 return; 789 } 790 /* 791 * Experience has shown that the gpibwait in this gpibsend will 792 * occasionally timeout. It appears to occur mostly on old 7914 793 * drives with full maintenance tracks. We should probably 794 * integrate this with the backoff code in rderror. 795 */ 796 797 DPRINTF(RDB_ERROR, 798 ("rdstart: cmd %x adr %ul blk %" PRId64 " len %d ecnt %d\n", 799 sc->sc_ioc.c_cmd, sc->sc_ioc.c_addr, bp->b_blkno, sc->sc_resid, 800 sc->sc_errcnt)); 801 802 sc->sc_flags &= ~RDF_SEEK; 803 cs80reset(device_parent(&sc->sc_dev), slave, punit); 804 if (sc->sc_errcnt++ < RDRETRY) 805 goto again; 806 printf("%s: rdstart err: cmd 0x%x sect %uld blk %" PRId64 " len %d\n", 807 sc->sc_dev.dv_xname, sc->sc_ioc.c_cmd, sc->sc_ioc.c_addr, 808 bp->b_blkno, sc->sc_resid); 809 bp->b_error = EIO; 810 bp = rdfinish(sc, bp); 811 if (bp) { 812 sc->sc_addr = bp->b_data; 813 sc->sc_resid = bp->b_bcount; 814 if (gpibrequest(sc->sc_ic, sc->sc_hdl)) 815 goto again; 816 } 817 } 818 819 void 820 rdintr(sc) 821 struct rd_softc *sc; 822 { 823 struct buf *bp; 824 u_int8_t stat = 13; /* in case gpibrecv fails */ 825 int rv, dir, restart, slave; 826 827 slave = sc->sc_slave; 828 bp = BUFQ_PEEK(sc->sc_tab); 829 830 DPRINTF(RDB_FOLLOW, ("rdintr(%s): bp %p, %c, flags %x\n", 831 sc->sc_dev.dv_xname, bp, (bp->b_flags & B_READ) ? 'R' : 'W', 832 sc->sc_flags)); 833 834 disk_unbusy(&sc->sc_dk, (bp->b_bcount - bp->b_resid), 835 (bp->b_flags & B_READ)); 836 837 if (sc->sc_flags & RDF_SEEK) { 838 sc->sc_flags &= ~RDF_SEEK; 839 dir = (bp->b_flags & B_READ ? GPIB_READ : GPIB_WRITE); 840 gpibxfer(sc->sc_ic, slave, CS80CMD_EXEC, sc->sc_addr, 841 sc->sc_resid, dir, dir == GPIB_READ); 842 disk_busy(&sc->sc_dk); 843 return; 844 } 845 if ((sc->sc_flags & RDF_SWAIT) == 0) { 846 if (gpibpptest(sc->sc_ic, slave) == 0) { 847 /* Instrumentation. */ 848 disk_busy(&sc->sc_dk); 849 sc->sc_flags |= RDF_SWAIT; 850 gpibawait(sc->sc_ic); 851 return; 852 } 853 } else 854 sc->sc_flags &= ~RDF_SWAIT; 855 rv = gpibrecv(sc->sc_ic, slave, CS80CMD_QSTAT, &stat, 1); 856 if (rv != 1 || stat) { 857 DPRINTF(RDB_ERROR, 858 ("rdintr: receive failed (rv=%d) or bad stat %d\n", rv, 859 stat)); 860 restart = rderror(sc); 861 if (sc->sc_errcnt++ < RDRETRY) { 862 if (restart) 863 rdstart(sc); 864 return; 865 } 866 bp->b_error = EIO; 867 } 868 if (rdfinish(sc, bp) != NULL) 869 rdustart(sc); 870 #if NRND > 0 871 rnd_add_uint32(&sc->rnd_source, bp->b_blkno); 872 #endif 873 } 874 875 /* 876 * Deal with errors. 877 * Returns 1 if request should be restarted, 878 * 0 if we should just quietly give up. 879 */ 880 int 881 rderror(sc) 882 struct rd_softc *sc; 883 { 884 struct cs80_stat css; 885 struct buf *bp; 886 daddr_t hwbn, pbn; 887 888 DPRINTF(RDB_FOLLOW, ("rderror: sc=%p\n", sc)); 889 890 if (cs80status(device_parent(&sc->sc_dev), sc->sc_slave, 891 sc->sc_punit, &css)) { 892 cs80reset(device_parent(&sc->sc_dev), sc->sc_slave, 893 sc->sc_punit); 894 return (1); 895 } 896 #ifdef DEBUG 897 if (rddebug & RDB_ERROR) { /* status info */ 898 printf("\n volume: %d, unit: %d\n", 899 (css.c_vu>>4)&0xF, css.c_vu&0xF); 900 printf(" reject 0x%x\n", css.c_ref); 901 printf(" fault 0x%x\n", css.c_fef); 902 printf(" access 0x%x\n", css.c_aef); 903 printf(" info 0x%x\n", css.c_ief); 904 printf(" block, P1-P10: "); 905 printf("0x%x", *(u_int32_t *)&css.c_raw[0]); 906 printf("0x%x", *(u_int32_t *)&css.c_raw[4]); 907 printf("0x%x\n", *(u_int16_t *)&css.c_raw[8]); 908 } 909 #endif 910 if (css.c_fef & FEF_REXMT) 911 return (1); 912 if (css.c_fef & FEF_PF) { 913 cs80reset(device_parent(&sc->sc_dev), sc->sc_slave, 914 sc->sc_punit); 915 return (1); 916 } 917 /* 918 * Unit requests release for internal maintenance. 919 * We just delay awhile and try again later. Use expontially 920 * increasing backoff ala ethernet drivers since we don't really 921 * know how long the maintenance will take. With RDWAITC and 922 * RDRETRY as defined, the range is 1 to 32 seconds. 923 */ 924 if (css.c_fef & FEF_IMR) { 925 extern int hz; 926 int rdtimo = RDWAITC << sc->sc_errcnt; 927 DPRINTF(RDB_STATUS, 928 ("%s: internal maintenance, %d-second timeout\n", 929 sc->sc_dev.dv_xname, rdtimo)); 930 gpibrelease(sc->sc_ic, sc->sc_hdl); 931 callout_reset(&sc->sc_restart_ch, rdtimo * hz, rdrestart, sc); 932 return (0); 933 } 934 /* 935 * Only report error if we have reached the error reporting 936 * threshhold. By default, this will only report after the 937 * retry limit has been exceeded. 938 */ 939 if (sc->sc_errcnt < rderrthresh) 940 return (1); 941 942 /* 943 * First conjure up the block number at which the error occurred. 944 */ 945 bp = BUFQ_PEEK(sc->sc_tab); 946 pbn = sc->sc_dk.dk_label->d_partitions[RDPART(bp->b_dev)].p_offset; 947 if ((css.c_fef & FEF_CU) || (css.c_fef & FEF_DR) || 948 (css.c_ief & IEF_RRMASK)) { 949 /* 950 * Not all errors report a block number, just use b_blkno. 951 */ 952 hwbn = RDBTOS(pbn + bp->b_blkno); 953 pbn = bp->b_blkno; 954 } else { 955 hwbn = css.c_blk; 956 pbn = RDSTOB(hwbn) - pbn; 957 } 958 #ifdef DEBUG 959 if (rddebug & RDB_ERROR) { /* status info */ 960 printf("\n volume: %d, unit: %d\n", 961 (css.c_vu>>4)&0xF, css.c_vu&0xF); 962 printf(" reject 0x%x\n", css.c_ref); 963 printf(" fault 0x%x\n", css.c_fef); 964 printf(" access 0x%x\n", css.c_aef); 965 printf(" info 0x%x\n", css.c_ief); 966 printf(" block, P1-P10: "); 967 printf(" block: %" PRId64 ", P1-P10: ", hwbn); 968 printf("0x%x", *(u_int32_t *)&css.c_raw[0]); 969 printf("0x%x", *(u_int32_t *)&css.c_raw[4]); 970 printf("0x%x\n", *(u_int16_t *)&css.c_raw[8]); 971 } 972 #endif 973 #ifdef DEBUG 974 if (rddebug & RDB_ERROR) { /* command */ 975 printf(" ioc: "); 976 printf("0x%x", *(u_int32_t *)&sc->sc_ioc.c_pad); 977 printf("0x%x", *(u_int16_t *)&sc->sc_ioc.c_hiaddr); 978 printf("0x%x", *(u_int32_t *)&sc->sc_ioc.c_addr); 979 printf("0x%x", *(u_int16_t *)&sc->sc_ioc.c_nop2); 980 printf("0x%x", *(u_int32_t *)&sc->sc_ioc.c_len); 981 printf("0x%x\n", *(u_int16_t *)&sc->sc_ioc.c_cmd); 982 return (1); 983 } 984 #endif 985 /* 986 * Now output a generic message suitable for badsect. 987 * Note that we don't use harderr because it just prints 988 * out b_blkno which is just the beginning block number 989 * of the transfer, not necessary where the error occurred. 990 */ 991 printf("%s%c: hard error, sector number %" PRId64 "\n", 992 sc->sc_dev.dv_xname, 'a'+RDPART(bp->b_dev), pbn); 993 /* 994 * Now report the status as returned by the hardware with 995 * attempt at interpretation. 996 */ 997 printf("%s %s error:", sc->sc_dev.dv_xname, 998 (bp->b_flags & B_READ) ? "read" : "write"); 999 printf(" unit %d, volume %d R0x%x F0x%x A0x%x I0x%x\n", 1000 css.c_vu&0xF, (css.c_vu>>4)&0xF, 1001 css.c_ref, css.c_fef, css.c_aef, css.c_ief); 1002 printf("P1-P10: "); 1003 printf("0x%x ", *(u_int32_t *)&css.c_raw[0]); 1004 printf("0x%x ", *(u_int32_t *)&css.c_raw[4]); 1005 printf("0x%x\n", *(u_int16_t *)&css.c_raw[8]); 1006 1007 return (1); 1008 } 1009 1010 int 1011 rdread(dev, uio, flags) 1012 dev_t dev; 1013 struct uio *uio; 1014 int flags; 1015 { 1016 1017 return (physio(rdstrategy, NULL, dev, B_READ, minphys, uio)); 1018 } 1019 1020 int 1021 rdwrite(dev, uio, flags) 1022 dev_t dev; 1023 struct uio *uio; 1024 int flags; 1025 { 1026 1027 return (physio(rdstrategy, NULL, dev, B_WRITE, minphys, uio)); 1028 } 1029 1030 int 1031 rdioctl(dev, cmd, data, flag, l) 1032 dev_t dev; 1033 u_long cmd; 1034 void *data; 1035 int flag; 1036 struct lwp *l; 1037 { 1038 struct rd_softc *sc; 1039 struct disklabel *lp; 1040 int error, flags; 1041 1042 sc = device_lookup(&rd_cd, RDUNIT(dev)); 1043 if (sc == NULL) 1044 return (ENXIO); 1045 lp = sc->sc_dk.dk_label; 1046 1047 DPRINTF(RDB_FOLLOW, ("rdioctl: sc=%p\n", sc)); 1048 1049 switch (cmd) { 1050 case DIOCGDINFO: 1051 *(struct disklabel *)data = *lp; 1052 return (0); 1053 1054 case DIOCGPART: 1055 ((struct partinfo *)data)->disklab = lp; 1056 ((struct partinfo *)data)->part = 1057 &lp->d_partitions[RDPART(dev)]; 1058 return (0); 1059 1060 case DIOCWLABEL: 1061 if ((flag & FWRITE) == 0) 1062 return (EBADF); 1063 if (*(int *)data) 1064 sc->sc_flags |= RDF_WLABEL; 1065 else 1066 sc->sc_flags &= ~RDF_WLABEL; 1067 return (0); 1068 1069 case DIOCSDINFO: 1070 if ((flag & FWRITE) == 0) 1071 return (EBADF); 1072 return (setdisklabel(lp, (struct disklabel *)data, 1073 (sc->sc_flags & RDF_WLABEL) ? 0 : sc->sc_dk.dk_openmask, 1074 (struct cpu_disklabel *)0)); 1075 1076 case DIOCWDINFO: 1077 if ((flag & FWRITE) == 0) 1078 return (EBADF); 1079 error = setdisklabel(lp, (struct disklabel *)data, 1080 (sc->sc_flags & RDF_WLABEL) ? 0 : sc->sc_dk.dk_openmask, 1081 (struct cpu_disklabel *)0); 1082 if (error) 1083 return (error); 1084 flags = sc->sc_flags; 1085 sc->sc_flags = RDF_ALIVE | RDF_WLABEL; 1086 error = writedisklabel(RDLABELDEV(dev), rdstrategy, lp, 1087 (struct cpu_disklabel *)0); 1088 sc->sc_flags = flags; 1089 return (error); 1090 1091 case DIOCGDEFLABEL: 1092 rdgetdefaultlabel(sc, (struct disklabel *)data); 1093 return (0); 1094 } 1095 return (EINVAL); 1096 } 1097 1098 void 1099 rdgetdefaultlabel(sc, lp) 1100 struct rd_softc *sc; 1101 struct disklabel *lp; 1102 { 1103 int type = sc->sc_type; 1104 1105 memset((void *)lp, 0, sizeof(struct disklabel)); 1106 1107 lp->d_type = DTYPE_GPIB; 1108 lp->d_secsize = DEV_BSIZE; 1109 lp->d_nsectors = rdidentinfo[type].ri_nbpt; 1110 lp->d_ntracks = rdidentinfo[type].ri_ntpc; 1111 lp->d_ncylinders = rdidentinfo[type].ri_ncyl; 1112 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1113 lp->d_secperunit = lp->d_ncylinders * lp->d_secpercyl; 1114 1115 strncpy(lp->d_typename, rdidentinfo[type].ri_desc, 16); 1116 strncpy(lp->d_packname, "fictitious", 16); 1117 lp->d_rpm = 3000; 1118 lp->d_interleave = 1; 1119 lp->d_flags = 0; 1120 1121 lp->d_partitions[RAW_PART].p_offset = 0; 1122 lp->d_partitions[RAW_PART].p_size = 1123 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1124 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1125 lp->d_npartitions = RAW_PART + 1; 1126 1127 lp->d_magic = DISKMAGIC; 1128 lp->d_magic2 = DISKMAGIC; 1129 lp->d_checksum = dkcksum(lp); 1130 } 1131 1132 int 1133 rdsize(dev) 1134 dev_t dev; 1135 { 1136 struct rd_softc *sc; 1137 int psize, didopen = 0; 1138 1139 sc = device_lookup(&rd_cd, RDUNIT(dev)); 1140 if (sc == NULL || (sc->sc_flags & RDF_ALIVE) == 0) 1141 return (-1); 1142 1143 /* 1144 * We get called very early on (via swapconf) 1145 * without the device being open so we may need 1146 * to handle it here. 1147 */ 1148 if (sc->sc_dk.dk_openmask == 0) { 1149 if (rdopen(dev, FREAD | FWRITE, S_IFBLK, NULL)) 1150 return (-1); 1151 didopen = 1; 1152 } 1153 psize = sc->sc_dk.dk_label->d_partitions[RDPART(dev)].p_size * 1154 (sc->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1155 if (didopen) 1156 (void) rdclose(dev, FREAD | FWRITE, S_IFBLK, NULL); 1157 return (psize); 1158 } 1159 1160 1161 static int rddoingadump; /* simple mutex */ 1162 1163 /* 1164 * Non-interrupt driven, non-dma dump routine. 1165 */ 1166 int 1167 rddump(dev, blkno, va, size) 1168 dev_t dev; 1169 daddr_t blkno; 1170 void *va; 1171 size_t size; 1172 { 1173 struct rd_softc *sc; 1174 int sectorsize; /* size of a disk sector */ 1175 int nsects; /* number of sectors in partition */ 1176 int sectoff; /* sector offset of partition */ 1177 int totwrt; /* total number of sectors left to write */ 1178 int nwrt; /* current number of sectors to write */ 1179 int slave; 1180 struct disklabel *lp; 1181 u_int8_t stat; 1182 1183 /* Check for recursive dump; if so, punt. */ 1184 if (rddoingadump) 1185 return (EFAULT); 1186 rddoingadump = 1; 1187 1188 sc = device_lookup(&rd_cd, RDUNIT(dev)); 1189 if (sc == NULL || (sc->sc_flags & RDF_ALIVE) == 0) 1190 return (ENXIO); 1191 1192 DPRINTF(RDB_FOLLOW, ("rddump: sc=%p\n", sc)); 1193 1194 slave = sc->sc_slave; 1195 1196 /* 1197 * Convert to disk sectors. Request must be a multiple of size. 1198 */ 1199 lp = sc->sc_dk.dk_label; 1200 sectorsize = lp->d_secsize; 1201 if ((size % sectorsize) != 0) 1202 return (EFAULT); 1203 totwrt = size / sectorsize; 1204 blkno = dbtob(blkno) / sectorsize; /* blkno in DEV_BSIZE units */ 1205 1206 nsects = lp->d_partitions[RDPART(dev)].p_size; 1207 sectoff = lp->d_partitions[RDPART(dev)].p_offset; 1208 1209 /* Check transfer bounds against partition size. */ 1210 if ((blkno < 0) || (blkno + totwrt) > nsects) 1211 return (EINVAL); 1212 1213 /* Offset block number to start of partition. */ 1214 blkno += sectoff; 1215 1216 while (totwrt > 0) { 1217 nwrt = totwrt; /* XXX */ 1218 #ifndef RD_DUMP_NOT_TRUSTED 1219 /* 1220 * Fill out and send GPIB command. 1221 */ 1222 sc->sc_ioc.c_unit = CS80CMD_SUNIT(sc->sc_punit); 1223 sc->sc_ioc.c_volume = CS80CMD_SVOL(0); 1224 sc->sc_ioc.c_saddr = CS80CMD_SADDR; 1225 sc->sc_ioc.c_hiaddr = 0; 1226 sc->sc_ioc.c_addr = RDBTOS(blkno); 1227 sc->sc_ioc.c_nop2 = CS80CMD_NOP; 1228 sc->sc_ioc.c_slen = CS80CMD_SLEN; 1229 sc->sc_ioc.c_len = nwrt * sectorsize; 1230 sc->sc_ioc.c_cmd = CS80CMD_WRITE; 1231 (void) gpibsend(sc->sc_ic, slave, CS80CMD_SCMD, 1232 &sc->sc_ioc.c_unit, sizeof(sc->sc_ioc)-3); 1233 if (gpibswait(sc->sc_ic, slave)) 1234 return (EIO); 1235 /* 1236 * Send the data. 1237 */ 1238 (void) gpibsend(sc->sc_ic, slave, CS80CMD_EXEC, va, 1239 nwrt * sectorsize); 1240 (void) gpibswait(sc->sc_ic, slave); 1241 (void) gpibrecv(sc->sc_ic, slave, CS80CMD_QSTAT, &stat, 1); 1242 if (stat) 1243 return (EIO); 1244 #else /* RD_DUMP_NOT_TRUSTED */ 1245 /* Let's just talk about this first... */ 1246 printf("%s: dump addr %p, blk %d\n", sc->sc_dev.dv_xname, 1247 va, blkno); 1248 delay(500 * 1000); /* half a second */ 1249 #endif /* RD_DUMP_NOT_TRUSTED */ 1250 1251 /* update block count */ 1252 totwrt -= nwrt; 1253 blkno += nwrt; 1254 va += sectorsize * nwrt; 1255 } 1256 rddoingadump = 0; 1257 return (0); 1258 } 1259