rd.c revision 1.3
1 /* $NetBSD: rd.c,v 1.3 2004/08/28 17:45:24 thorpej 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 1.3 2004/08/28 17:45:24 thorpej 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/callout.h> 129 #include <sys/conf.h> 130 #include <sys/device.h> 131 #include <sys/disk.h> 132 #include <sys/disklabel.h> 133 #include <sys/endian.h> 134 #include <sys/fcntl.h> 135 #include <sys/ioctl.h> 136 #include <sys/proc.h> 137 #include <sys/stat.h> 138 139 #if NRND > 0 140 #include <sys/rnd.h> 141 #endif 142 143 #include <dev/gpib/gpibvar.h> 144 #include <dev/gpib/cs80busvar.h> 145 146 #include <dev/gpib/rdreg.h> 147 148 #ifdef DEBUG 149 int rddebug = 0xff; 150 #define RDB_FOLLOW 0x01 151 #define RDB_STATUS 0x02 152 #define RDB_IDENT 0x04 153 #define RDB_IO 0x08 154 #define RDB_ASYNC 0x10 155 #define RDB_ERROR 0x80 156 #define DPRINTF(mask, str) if (rddebug & (mask)) printf str 157 #else 158 #define DPRINTF(mask, str) /* nothing */ 159 #endif 160 161 struct rd_softc { 162 struct device sc_dev; 163 gpib_chipset_tag_t sc_ic; 164 gpib_handle_t sc_hdl; 165 166 struct disk sc_dk; 167 168 int sc_slave; /* GPIB slave */ 169 int sc_punit; /* physical unit on slave */ 170 171 int sc_flags; 172 #define RDF_ALIVE 0x01 173 #define RDF_SEEK 0x02 174 #define RDF_SWAIT 0x04 175 #define RDF_OPENING 0x08 176 #define RDF_CLOSING 0x10 177 #define RDF_WANTED 0x20 178 #define RDF_WLABEL 0x40 179 180 u_int16_t sc_type; 181 u_int8_t *sc_addr; 182 int sc_resid; 183 struct rd_iocmd sc_ioc; 184 struct bufq_state sc_tab; 185 int sc_active; 186 int sc_errcnt; 187 188 struct callout sc_restart_ch; 189 190 #if NRND > 0 191 rndsource_element_t rnd_source; 192 #endif 193 }; 194 195 #define RDUNIT(dev) DISKUNIT(dev) 196 #define RDPART(dev) DISKPART(dev) 197 #define RDMAKEDEV(maj, unit, part) MAKEDISKDEV(maj, unit, part) 198 #define RDLABELDEV(dev) (RDMAKEDEV(major(dev), RDUNIT(dev), RAW_PART)) 199 200 #define RDRETRY 5 201 #define RDWAITC 1 /* min time for timeout in seconds */ 202 203 int rderrthresh = RDRETRY-1; /* when to start reporting errors */ 204 205 /* 206 * Misc. HW description, indexed by sc_type. 207 * Used for mapping 256-byte sectors for 512-byte sectors 208 */ 209 const struct rdidentinfo { 210 u_int16_t ri_hwid; /* 2 byte HW id */ 211 u_int16_t ri_maxunum; /* maximum allowed unit number */ 212 char *ri_desc; /* drive type description */ 213 int ri_nbpt; /* DEV_BSIZE blocks per track */ 214 int ri_ntpc; /* tracks per cylinder */ 215 int ri_ncyl; /* cylinders per unit */ 216 int ri_nblocks; /* DEV_BSIZE blocks on disk */ 217 } rdidentinfo[] = { 218 { RD7946AID, 0, "7945A", NRD7945ABPT, 219 NRD7945ATRK, 968, 108416 }, 220 221 { RD9134DID, 1, "9134D", NRD9134DBPT, 222 NRD9134DTRK, 303, 29088 }, 223 224 { RD9134LID, 1, "9122S", NRD9122SBPT, 225 NRD9122STRK, 77, 1232 }, 226 227 { RD7912PID, 0, "7912P", NRD7912PBPT, 228 NRD7912PTRK, 572, 128128 }, 229 230 { RD7914PID, 0, "7914P", NRD7914PBPT, 231 NRD7914PTRK, 1152, 258048 }, 232 233 { RD7958AID, 0, "7958A", NRD7958ABPT, 234 NRD7958ATRK, 1013, 255276 }, 235 236 { RD7957AID, 0, "7957A", NRD7957ABPT, 237 NRD7957ATRK, 1036, 159544 }, 238 239 { RD7933HID, 0, "7933H", NRD7933HBPT, 240 NRD7933HTRK, 1321, 789958 }, 241 242 { RD9134LID, 1, "9134L", NRD9134LBPT, 243 NRD9134LTRK, 973, 77840 }, 244 245 { RD7936HID, 0, "7936H", NRD7936HBPT, 246 NRD7936HTRK, 698, 600978 }, 247 248 { RD7937HID, 0, "7937H", NRD7937HBPT, 249 NRD7937HTRK, 698, 1116102 }, 250 251 { RD7914CTID, 0, "7914CT", NRD7914PBPT, 252 NRD7914PTRK, 1152, 258048 }, 253 254 { RD7946AID, 0, "7946A", NRD7945ABPT, 255 NRD7945ATRK, 968, 108416 }, 256 257 { RD9134LID, 1, "9122D", NRD9122SBPT, 258 NRD9122STRK, 77, 1232 }, 259 260 { RD7957BID, 0, "7957B", NRD7957BBPT, 261 NRD7957BTRK, 1269, 159894 }, 262 263 { RD7958BID, 0, "7958B", NRD7958BBPT, 264 NRD7958BTRK, 786, 297108 }, 265 266 { RD7959BID, 0, "7959B", NRD7959BBPT, 267 NRD7959BTRK, 1572, 594216 }, 268 269 { RD2200AID, 0, "2200A", NRD2200ABPT, 270 NRD2200ATRK, 1449, 654948 }, 271 272 { RD2203AID, 0, "2203A", NRD2203ABPT, 273 NRD2203ATRK, 1449, 1309896 } 274 }; 275 int numrdidentinfo = sizeof(rdidentinfo) / sizeof(rdidentinfo[0]); 276 277 int rdlookup(int, int, int); 278 int rdgetinfo(struct rd_softc *); 279 void rdrestart(void *); 280 struct buf *rdfinish(struct rd_softc *, struct buf *); 281 282 void rdgetcompatlabel(struct rd_softc *, struct disklabel *); 283 void rdgetdefaultlabel(struct rd_softc *, struct disklabel *); 284 void rdrestart(void *); 285 void rdustart(struct rd_softc *); 286 struct buf *rdfinish(struct rd_softc *, struct buf *); 287 void rdcallback(void *, int); 288 void rdstart(struct rd_softc *); 289 void rdintr(struct rd_softc *); 290 int rderror(struct rd_softc *); 291 292 int rdmatch(struct device *, struct cfdata *, void *); 293 void rdattach(struct device *, struct device *, void *); 294 295 CFATTACH_DECL(rd, sizeof(struct rd_softc), 296 rdmatch, rdattach, NULL, NULL); 297 298 299 dev_type_open(rdopen); 300 dev_type_close(rdclose); 301 dev_type_read(rdread); 302 dev_type_write(rdwrite); 303 dev_type_ioctl(rdioctl); 304 dev_type_strategy(rdstrategy); 305 dev_type_dump(rddump); 306 dev_type_size(rdsize); 307 308 const struct bdevsw rd_bdevsw = { 309 rdopen, rdclose, rdstrategy, rdioctl, rddump, rdsize, D_DISK 310 }; 311 312 const struct cdevsw rd_cdevsw = { 313 rdopen, rdclose, rdread, rdwrite, rdioctl, 314 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 315 }; 316 317 extern struct cfdriver rd_cd; 318 319 int 320 rdlookup(id, slave, punit) 321 int id; 322 int slave; 323 int punit; 324 { 325 int i; 326 327 for (i = 0; i < numrdidentinfo; i++) { 328 if (rdidentinfo[i].ri_hwid == id) 329 break; 330 } 331 if (i == numrdidentinfo || punit > rdidentinfo[i].ri_maxunum) 332 return (-1); 333 return (i); 334 } 335 336 int 337 rdmatch(parent, match, aux) 338 struct device *parent; 339 struct cfdata *match; 340 void *aux; 341 { 342 struct cs80bus_attach_args *ca = aux; 343 344 if (rdlookup(ca->ca_id, ca->ca_slave, ca->ca_punit) < 0) 345 return (0); 346 return (1); 347 } 348 349 void 350 rdattach(parent, self, aux) 351 struct device *parent, *self; 352 void *aux; 353 { 354 struct rd_softc *sc = (struct rd_softc *)self; 355 struct cs80bus_attach_args *ca = aux; 356 struct cs80_description csd; 357 char name[7]; 358 int type, i, n; 359 360 sc->sc_ic = ca->ca_ic; 361 sc->sc_slave = ca->ca_slave; 362 sc->sc_punit = ca->ca_punit; 363 364 if ((type = rdlookup(ca->ca_id, ca->ca_slave, ca->ca_punit)) < 0) 365 return; 366 367 if (cs80reset(parent, sc->sc_slave, sc->sc_punit)) { 368 printf("\n%s: can't reset device\n", sc->sc_dev.dv_xname); 369 return; 370 } 371 372 if (cs80describe(parent, sc->sc_slave, sc->sc_punit, &csd)) { 373 printf("\n%s: didn't respond to describe command\n", 374 sc->sc_dev.dv_xname); 375 return; 376 } 377 memset(name, 0, sizeof(name)); 378 for (i=0, n=0; i<3; i++) { 379 name[n++] = (csd.d_name[i] >> 4) + '0'; 380 name[n++] = (csd.d_name[i] & 0x0f) + '0'; 381 } 382 383 #ifdef DEBUG 384 if (rddebug & RDB_IDENT) { 385 printf("\n%s: name: ('%s')\n", 386 sc->sc_dev.dv_xname, name); 387 printf(" iuw %x, maxxfr %d, ctype %d\n", 388 csd.d_iuw, csd.d_cmaxxfr, csd.d_ctype); 389 printf(" utype %d, bps %d, blkbuf %d, burst %d, blktime %d\n", 390 csd.d_utype, csd.d_sectsize, 391 csd.d_blkbuf, csd.d_burstsize, csd.d_blocktime); 392 printf(" avxfr %d, ort %d, atp %d, maxint %d, fv %x, rv %x\n", 393 csd.d_uavexfr, csd.d_retry, csd.d_access, 394 csd.d_maxint, csd.d_fvbyte, csd.d_rvbyte); 395 printf(" maxcyl/head/sect %d/%d/%d, maxvsect %d, inter %d\n", 396 csd.d_maxcylhead >> 8, csd.d_maxcylhead & 0xff, 397 csd.d_maxsect, csd.d_maxvsectl, csd.d_interleave); 398 printf("%s", sc->sc_dev.dv_xname); 399 } 400 #endif 401 402 /* 403 * Take care of a couple of anomolies: 404 * 1. 7945A and 7946A both return same HW id 405 * 2. 9122S and 9134D both return same HW id 406 * 3. 9122D and 9134L both return same HW id 407 */ 408 switch (ca->ca_id) { 409 case RD7946AID: 410 if (memcmp(name, "079450", 6) == 0) 411 type = RD7945A; 412 else 413 type = RD7946A; 414 break; 415 416 case RD9134LID: 417 if (memcmp(name, "091340", 6) == 0) 418 type = RD9134L; 419 else 420 type = RD9122D; 421 break; 422 423 case RD9134DID: 424 if (memcmp(name, "091220", 6) == 0) 425 type = RD9122S; 426 else 427 type = RD9134D; 428 break; 429 } 430 431 sc->sc_type = type; 432 433 /* 434 * XXX We use DEV_BSIZE instead of the sector size value pulled 435 * XXX off the driver because all of this code assumes 512 byte 436 * XXX blocks. ICK! 437 */ 438 printf(": %s\n", rdidentinfo[type].ri_desc); 439 printf("%s: %d cylinders, %d heads, %d blocks, %d bytes/block\n", 440 sc->sc_dev.dv_xname, rdidentinfo[type].ri_ncyl, 441 rdidentinfo[type].ri_ntpc, rdidentinfo[type].ri_nblocks, 442 DEV_BSIZE); 443 444 bufq_alloc(&sc->sc_tab, BUFQ_FCFS); 445 446 /* 447 * Initialize and attach the disk structure. 448 */ 449 memset(&sc->sc_dk, 0, sizeof(sc->sc_dk)); 450 sc->sc_dk.dk_name = sc->sc_dev.dv_xname; 451 disk_attach(&sc->sc_dk); 452 453 callout_init(&sc->sc_restart_ch); 454 455 if (gpibregister(sc->sc_ic, sc->sc_slave, rdcallback, sc, 456 &sc->sc_hdl)) { 457 printf("%s: can't register callback\n", sc->sc_dev.dv_xname); 458 return; 459 } 460 461 sc->sc_flags = RDF_ALIVE; 462 #ifdef DEBUG 463 /* always report errors */ 464 if (rddebug & RDB_ERROR) 465 rderrthresh = 0; 466 #endif 467 #if NRND > 0 468 /* 469 * attach the device into the random source list 470 */ 471 rnd_attach_source(&sc->rnd_source, sc->sc_dev.dv_xname, 472 RND_TYPE_DISK, 0); 473 #endif 474 } 475 476 /* 477 * Read or constuct a disklabel 478 */ 479 int 480 rdgetinfo(sc) 481 struct rd_softc *sc; 482 { 483 struct disklabel *lp = sc->sc_dk.dk_label; 484 struct partition *pi; 485 const char *msg; 486 487 memset(sc->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 488 489 rdgetdefaultlabel(sc, lp); 490 491 /* 492 * Call the generic disklabel extraction routine 493 */ 494 msg = readdisklabel(RDMAKEDEV(0, sc->sc_dev.dv_unit, RAW_PART), 495 rdstrategy, lp, NULL); 496 if (msg == NULL) 497 return (0); 498 499 pi = lp->d_partitions; 500 printf("%s: WARNING: %s\n", sc->sc_dev.dv_xname, msg); 501 502 pi[RAW_PART].p_size = rdidentinfo[sc->sc_type].ri_nblocks; 503 lp->d_npartitions = RAW_PART+1; 504 pi[0].p_size = 0; 505 506 return (0); 507 } 508 509 int 510 rdopen(dev, flags, mode, p) 511 dev_t dev; 512 int flags, mode; 513 struct proc *p; 514 { 515 struct rd_softc *sc; 516 int error, mask, part; 517 518 sc = device_lookup(&rd_cd, RDUNIT(dev)); 519 if (sc == NULL || (sc->sc_flags & RDF_ALIVE) ==0) 520 return (ENXIO); 521 522 /* 523 * Wait for any pending opens/closes to complete 524 */ 525 while (sc->sc_flags & (RDF_OPENING | RDF_CLOSING)) 526 (void) tsleep(sc, PRIBIO, "rdopen", 0); 527 528 /* 529 * On first open, get label and partition info. 530 * We may block reading the label, so be careful 531 * to stop any other opens. 532 */ 533 if (sc->sc_dk.dk_openmask == 0) { 534 sc->sc_flags |= RDF_OPENING; 535 error = rdgetinfo(sc); 536 sc->sc_flags &= ~RDF_OPENING; 537 wakeup((caddr_t)sc); 538 if (error) 539 return (error); 540 } 541 542 part = RDPART(dev); 543 mask = 1 << part; 544 545 /* Check that the partition exists. */ 546 if (part != RAW_PART && (part > sc->sc_dk.dk_label->d_npartitions || 547 sc->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) 548 return (ENXIO); 549 550 /* Ensure only one open at a time. */ 551 switch (mode) { 552 case S_IFCHR: 553 sc->sc_dk.dk_copenmask |= mask; 554 break; 555 case S_IFBLK: 556 sc->sc_dk.dk_bopenmask |= mask; 557 break; 558 } 559 sc->sc_dk.dk_openmask = 560 sc->sc_dk.dk_copenmask | sc->sc_dk.dk_bopenmask; 561 562 return (0); 563 } 564 565 int 566 rdclose(dev, flag, mode, p) 567 dev_t dev; 568 int flag, mode; 569 struct proc *p; 570 { 571 struct rd_softc *sc; 572 struct disk *dk; 573 int mask, s; 574 575 sc = device_lookup(&rd_cd, RDUNIT(dev)); 576 if (sc == NULL) 577 return (ENXIO); 578 579 dk = &sc->sc_dk; 580 581 mask = 1 << RDPART(dev); 582 if (mode == S_IFCHR) 583 dk->dk_copenmask &= ~mask; 584 else 585 dk->dk_bopenmask &= ~mask; 586 dk->dk_openmask = dk->dk_copenmask | dk->dk_bopenmask; 587 /* 588 * On last close, we wait for all activity to cease since 589 * the label/parition info will become invalid. Since we 590 * might sleep, we must block any opens while we are here. 591 * Note we don't have to about other closes since we know 592 * we are the last one. 593 */ 594 if (dk->dk_openmask == 0) { 595 sc->sc_flags |= RDF_CLOSING; 596 s = splbio(); 597 while (sc->sc_active) { 598 sc->sc_flags |= RDF_WANTED; 599 (void) tsleep(&sc->sc_tab, PRIBIO, "rdclose", 0); 600 } 601 splx(s); 602 sc->sc_flags &= ~(RDF_CLOSING | RDF_WLABEL); 603 wakeup((caddr_t)sc); 604 } 605 return (0); 606 } 607 608 void 609 rdstrategy(bp) 610 struct buf *bp; 611 { 612 struct rd_softc *sc; 613 struct partition *pinfo; 614 daddr_t bn; 615 int sz, s; 616 int offset; 617 618 sc = device_lookup(&rd_cd, RDUNIT(bp->b_dev)); 619 620 DPRINTF(RDB_FOLLOW, 621 ("rdstrategy(%p): dev %x, bn %" PRId64 ", bcount %ld, %c\n", 622 bp, bp->b_dev, bp->b_blkno, bp->b_bcount, 623 (bp->b_flags & B_READ) ? 'R' : 'W')); 624 625 bn = bp->b_blkno; 626 sz = howmany(bp->b_bcount, DEV_BSIZE); 627 pinfo = &sc->sc_dk.dk_label->d_partitions[RDPART(bp->b_dev)]; 628 629 /* Don't perform partition translation on RAW_PART. */ 630 offset = (RDPART(bp->b_dev) == RAW_PART) ? 0 : pinfo->p_offset; 631 632 if (RDPART(bp->b_dev) != RAW_PART) { 633 /* 634 * XXX This block of code belongs in 635 * XXX bounds_check_with_label() 636 */ 637 638 if (bn < 0 || bn + sz > pinfo->p_size) { 639 sz = pinfo->p_size - bn; 640 if (sz == 0) { 641 bp->b_resid = bp->b_bcount; 642 goto done; 643 } 644 if (sz < 0) { 645 bp->b_error = EINVAL; 646 goto bad; 647 } 648 bp->b_bcount = dbtob(sz); 649 } 650 /* 651 * Check for write to write protected label 652 */ 653 if (bn + offset <= LABELSECTOR && 654 #if LABELSECTOR != 0 655 bn + offset + sz > LABELSECTOR && 656 #endif 657 !(bp->b_flags & B_READ) && !(sc->sc_flags & RDF_WLABEL)) { 658 bp->b_error = EROFS; 659 goto bad; 660 } 661 } 662 bp->b_rawblkno = bn + offset; 663 s = splbio(); 664 BUFQ_PUT(&sc->sc_tab, bp); 665 if (sc->sc_active == 0) { 666 sc->sc_active = 1; 667 rdustart(sc); 668 } 669 splx(s); 670 return; 671 bad: 672 bp->b_flags |= B_ERROR; 673 done: 674 biodone(bp); 675 } 676 677 /* 678 * Called from timeout() when handling maintenance releases 679 * callout from timeouts 680 */ 681 void 682 rdrestart(arg) 683 void *arg; 684 { 685 int s = splbio(); 686 rdustart((struct rd_softc *)arg); 687 splx(s); 688 } 689 690 691 /* called by rdstrategy() to start a block transfer */ 692 /* called by rdrestart() when handingly timeouts */ 693 /* called by rdintr() */ 694 void 695 rdustart(sc) 696 struct rd_softc *sc; 697 { 698 struct buf *bp; 699 700 bp = BUFQ_PEEK(&sc->sc_tab); 701 sc->sc_addr = bp->b_data; 702 sc->sc_resid = bp->b_bcount; 703 if (gpibrequest(sc->sc_ic, sc->sc_hdl)) 704 rdstart(sc); 705 } 706 707 struct buf * 708 rdfinish(sc, bp) 709 struct rd_softc *sc; 710 struct buf *bp; 711 { 712 713 sc->sc_errcnt = 0; 714 (void)BUFQ_GET(&sc->sc_tab); 715 bp->b_resid = 0; 716 biodone(bp); 717 gpibrelease(sc->sc_ic, sc->sc_hdl); 718 if ((bp = BUFQ_PEEK(&sc->sc_tab)) != NULL) 719 return (bp); 720 sc->sc_active = 0; 721 if (sc->sc_flags & RDF_WANTED) { 722 sc->sc_flags &= ~RDF_WANTED; 723 wakeup((caddr_t)&sc->sc_tab); 724 } 725 return (NULL); 726 } 727 728 void 729 rdcallback(v, action) 730 void *v; 731 int action; 732 { 733 struct rd_softc *sc = v; 734 735 DPRINTF(RDB_FOLLOW, ("rdcallback: v=%p, action=%d\n", v, action)); 736 737 switch (action) { 738 case GPIBCBF_START: 739 rdstart(sc); 740 break; 741 case GPIBCBF_INTR: 742 rdintr(sc); 743 break; 744 #ifdef DEBUG 745 default: 746 DPRINTF(RDB_ERROR, ("rdcallback: unknown action %d\n", 747 action)); 748 break; 749 #endif 750 } 751 } 752 753 754 /* called from rdustart() to start a transfer */ 755 /* called from gpib interface as the initiator */ 756 void 757 rdstart(sc) 758 struct rd_softc *sc; 759 { 760 struct buf *bp = BUFQ_PEEK(&sc->sc_tab); 761 int part, slave, punit; 762 763 slave = sc->sc_slave; 764 punit = sc->sc_punit; 765 766 DPRINTF(RDB_FOLLOW, ("rdstart(%s): bp %p, %c\n", 767 sc->sc_dev.dv_xname, bp, (bp->b_flags & B_READ) ? 'R' : 'W')); 768 769 again: 770 771 part = RDPART(bp->b_dev); 772 sc->sc_flags |= RDF_SEEK; 773 sc->sc_ioc.c_unit = CS80CMD_SUNIT(punit); 774 sc->sc_ioc.c_volume = CS80CMD_SVOL(0); 775 sc->sc_ioc.c_saddr = CS80CMD_SADDR; 776 sc->sc_ioc.c_hiaddr = htobe16(0); 777 sc->sc_ioc.c_addr = htobe32(RDBTOS(bp->b_rawblkno)); 778 sc->sc_ioc.c_nop2 = CS80CMD_NOP; 779 sc->sc_ioc.c_slen = CS80CMD_SLEN; 780 sc->sc_ioc.c_len = htobe32(sc->sc_resid); 781 sc->sc_ioc.c_cmd = bp->b_flags & B_READ ? CS80CMD_READ : CS80CMD_WRITE; 782 783 if (gpibsend(sc->sc_ic, slave, CS80CMD_SCMD, &sc->sc_ioc.c_unit, 784 sizeof(sc->sc_ioc)-1) == sizeof(sc->sc_ioc)-1) { 785 /* Instrumentation. */ 786 disk_busy(&sc->sc_dk); 787 sc->sc_dk.dk_seek++; 788 gpibawait(sc->sc_ic); 789 return; 790 } 791 /* 792 * Experience has shown that the gpibwait in this gpibsend will 793 * occasionally timeout. It appears to occur mostly on old 7914 794 * drives with full maintenance tracks. We should probably 795 * integrate this with the backoff code in rderror. 796 */ 797 798 DPRINTF(RDB_ERROR, 799 ("rdstart: cmd %x adr %ul blk %" PRId64 " len %d ecnt %d\n", 800 sc->sc_ioc.c_cmd, sc->sc_ioc.c_addr, bp->b_blkno, sc->sc_resid, 801 sc->sc_errcnt)); 802 803 sc->sc_flags &= ~RDF_SEEK; 804 cs80reset(sc->sc_dev.dv_parent, slave, punit); 805 if (sc->sc_errcnt++ < RDRETRY) 806 goto again; 807 printf("%s: rdstart err: cmd 0x%x sect %uld blk %" PRId64 " len %d\n", 808 sc->sc_dev.dv_xname, sc->sc_ioc.c_cmd, sc->sc_ioc.c_addr, 809 bp->b_blkno, sc->sc_resid); 810 bp->b_flags |= B_ERROR; 811 bp->b_error = EIO; 812 bp = rdfinish(sc, bp); 813 if (bp) { 814 sc->sc_addr = bp->b_data; 815 sc->sc_resid = bp->b_bcount; 816 if (gpibrequest(sc->sc_ic, sc->sc_hdl)) 817 goto again; 818 } 819 } 820 821 void 822 rdintr(sc) 823 struct rd_softc *sc; 824 { 825 struct buf *bp; 826 u_int8_t stat = 13; /* in case gpibrecv fails */ 827 int rv, dir, restart, slave; 828 829 slave = sc->sc_slave; 830 bp = BUFQ_PEEK(&sc->sc_tab); 831 832 DPRINTF(RDB_FOLLOW, ("rdintr(%s): bp %p, %c, flags %x\n", 833 sc->sc_dev.dv_xname, bp, (bp->b_flags & B_READ) ? 'R' : 'W', 834 sc->sc_flags)); 835 836 disk_unbusy(&sc->sc_dk, (bp->b_bcount - bp->b_resid), 837 (bp->b_flags & B_READ)); 838 839 if (sc->sc_flags & RDF_SEEK) { 840 sc->sc_flags &= ~RDF_SEEK; 841 dir = (bp->b_flags & B_READ ? GPIB_READ : GPIB_WRITE); 842 gpibxfer(sc->sc_ic, slave, CS80CMD_EXEC, sc->sc_addr, 843 sc->sc_resid, dir, dir == GPIB_READ); 844 disk_busy(&sc->sc_dk); 845 return; 846 } 847 if ((sc->sc_flags & RDF_SWAIT) == 0) { 848 if (gpibpptest(sc->sc_ic, slave) == 0) { 849 /* Instrumentation. */ 850 disk_busy(&sc->sc_dk); 851 sc->sc_flags |= RDF_SWAIT; 852 gpibawait(sc->sc_ic); 853 return; 854 } 855 } else 856 sc->sc_flags &= ~RDF_SWAIT; 857 rv = gpibrecv(sc->sc_ic, slave, CS80CMD_QSTAT, &stat, 1); 858 if (rv != 1 || stat) { 859 DPRINTF(RDB_ERROR, 860 ("rdintr: receive failed (rv=%d) or bad stat %d\n", rv, 861 stat)); 862 restart = rderror(sc); 863 if (sc->sc_errcnt++ < RDRETRY) { 864 if (restart) 865 rdstart(sc); 866 return; 867 } 868 bp->b_flags |= B_ERROR; 869 bp->b_error = EIO; 870 } 871 if (rdfinish(sc, bp) != NULL) 872 rdustart(sc); 873 #if NRND > 0 874 rnd_add_uint32(&sc->rnd_source, bp->b_blkno); 875 #endif 876 } 877 878 /* 879 * Deal with errors. 880 * Returns 1 if request should be restarted, 881 * 0 if we should just quietly give up. 882 */ 883 int 884 rderror(sc) 885 struct rd_softc *sc; 886 { 887 struct cs80_stat css; 888 struct buf *bp; 889 daddr_t hwbn, pbn; 890 891 DPRINTF(RDB_FOLLOW, ("rderror: sc=%p\n", sc)); 892 893 if (cs80status(sc->sc_dev.dv_parent, sc->sc_slave, 894 sc->sc_punit, &css)) { 895 cs80reset(sc->sc_dev.dv_parent, sc->sc_slave, sc->sc_punit); 896 return (1); 897 } 898 #ifdef DEBUG 899 if (rddebug & RDB_ERROR) { /* status info */ 900 printf("\n volume: %d, unit: %d\n", 901 (css.c_vu>>4)&0xF, css.c_vu&0xF); 902 printf(" reject 0x%x\n", css.c_ref); 903 printf(" fault 0x%x\n", css.c_fef); 904 printf(" access 0x%x\n", css.c_aef); 905 printf(" info 0x%x\n", css.c_ief); 906 printf(" block, P1-P10: "); 907 printf("0x%x", *(u_int32_t *)&css.c_raw[0]); 908 printf("0x%x", *(u_int32_t *)&css.c_raw[4]); 909 printf("0x%x\n", *(u_int16_t *)&css.c_raw[8]); 910 } 911 #endif 912 if (css.c_fef & FEF_REXMT) 913 return (1); 914 if (css.c_fef & FEF_PF) { 915 cs80reset(sc->sc_dev.dv_parent, sc->sc_slave, sc->sc_punit); 916 return (1); 917 } 918 /* 919 * Unit requests release for internal maintenance. 920 * We just delay awhile and try again later. Use expontially 921 * increasing backoff ala ethernet drivers since we don't really 922 * know how long the maintenance will take. With RDWAITC and 923 * RDRETRY as defined, the range is 1 to 32 seconds. 924 */ 925 if (css.c_fef & FEF_IMR) { 926 extern int hz; 927 int rdtimo = RDWAITC << sc->sc_errcnt; 928 DPRINTF(RDB_STATUS, 929 ("%s: internal maintenance, %d-second timeout\n", 930 sc->sc_dev.dv_xname, rdtimo)); 931 gpibrelease(sc->sc_ic, sc->sc_hdl); 932 callout_reset(&sc->sc_restart_ch, rdtimo * hz, rdrestart, sc); 933 return (0); 934 } 935 /* 936 * Only report error if we have reached the error reporting 937 * threshhold. By default, this will only report after the 938 * retry limit has been exceeded. 939 */ 940 if (sc->sc_errcnt < rderrthresh) 941 return (1); 942 943 /* 944 * First conjure up the block number at which the error occurred. 945 */ 946 bp = BUFQ_PEEK(&sc->sc_tab); 947 pbn = sc->sc_dk.dk_label->d_partitions[RDPART(bp->b_dev)].p_offset; 948 if ((css.c_fef & FEF_CU) || (css.c_fef & FEF_DR) || 949 (css.c_ief & IEF_RRMASK)) { 950 /* 951 * Not all errors report a block number, just use b_blkno. 952 */ 953 hwbn = RDBTOS(pbn + bp->b_blkno); 954 pbn = bp->b_blkno; 955 } else { 956 hwbn = css.c_blk; 957 pbn = RDSTOB(hwbn) - pbn; 958 } 959 #ifdef DEBUG 960 if (rddebug & RDB_ERROR) { /* status info */ 961 printf("\n volume: %d, unit: %d\n", 962 (css.c_vu>>4)&0xF, css.c_vu&0xF); 963 printf(" reject 0x%x\n", css.c_ref); 964 printf(" fault 0x%x\n", css.c_fef); 965 printf(" access 0x%x\n", css.c_aef); 966 printf(" info 0x%x\n", css.c_ief); 967 printf(" block, P1-P10: "); 968 printf(" block: %" PRId64 ", P1-P10: ", hwbn); 969 printf("0x%x", *(u_int32_t *)&css.c_raw[0]); 970 printf("0x%x", *(u_int32_t *)&css.c_raw[4]); 971 printf("0x%x\n", *(u_int16_t *)&css.c_raw[8]); 972 } 973 #endif 974 #ifdef DEBUG 975 if (rddebug & RDB_ERROR) { /* command */ 976 printf(" ioc: "); 977 printf("0x%x", *(u_int32_t *)&sc->sc_ioc.c_pad); 978 printf("0x%x", *(u_int16_t *)&sc->sc_ioc.c_hiaddr); 979 printf("0x%x", *(u_int32_t *)&sc->sc_ioc.c_addr); 980 printf("0x%x", *(u_int16_t *)&sc->sc_ioc.c_nop2); 981 printf("0x%x", *(u_int32_t *)&sc->sc_ioc.c_len); 982 printf("0x%x\n", *(u_int16_t *)&sc->sc_ioc.c_cmd); 983 return (1); 984 } 985 #endif 986 /* 987 * Now output a generic message suitable for badsect. 988 * Note that we don't use harderr because it just prints 989 * out b_blkno which is just the beginning block number 990 * of the transfer, not necessary where the error occurred. 991 */ 992 printf("%s%c: hard error, sector number %" PRId64 "\n", 993 sc->sc_dev.dv_xname, 'a'+RDPART(bp->b_dev), pbn); 994 /* 995 * Now report the status as returned by the hardware with 996 * attempt at interpretation. 997 */ 998 printf("%s %s error:", sc->sc_dev.dv_xname, 999 (bp->b_flags & B_READ) ? "read" : "write"); 1000 printf(" unit %d, volume %d R0x%x F0x%x A0x%x I0x%x\n", 1001 css.c_vu&0xF, (css.c_vu>>4)&0xF, 1002 css.c_ref, css.c_fef, css.c_aef, css.c_ief); 1003 printf("P1-P10: "); 1004 printf("0x%x ", *(u_int32_t *)&css.c_raw[0]); 1005 printf("0x%x ", *(u_int32_t *)&css.c_raw[4]); 1006 printf("0x%x\n", *(u_int16_t *)&css.c_raw[8]); 1007 1008 return (1); 1009 } 1010 1011 int 1012 rdread(dev, uio, flags) 1013 dev_t dev; 1014 struct uio *uio; 1015 int flags; 1016 { 1017 1018 return (physio(rdstrategy, NULL, dev, B_READ, minphys, uio)); 1019 } 1020 1021 int 1022 rdwrite(dev, uio, flags) 1023 dev_t dev; 1024 struct uio *uio; 1025 int flags; 1026 { 1027 1028 return (physio(rdstrategy, NULL, dev, B_WRITE, minphys, uio)); 1029 } 1030 1031 int 1032 rdioctl(dev, cmd, data, flag, p) 1033 dev_t dev; 1034 u_long cmd; 1035 caddr_t data; 1036 int flag; 1037 struct proc *p; 1038 { 1039 struct rd_softc *sc; 1040 struct disklabel *lp; 1041 int error, flags; 1042 1043 sc = device_lookup(&rd_cd, RDUNIT(dev)); 1044 if (sc == NULL) 1045 return (ENXIO); 1046 lp = sc->sc_dk.dk_label; 1047 1048 DPRINTF(RDB_FOLLOW, ("rdioctl: sc=%p\n", sc)); 1049 1050 switch (cmd) { 1051 case DIOCGDINFO: 1052 *(struct disklabel *)data = *lp; 1053 return (0); 1054 1055 case DIOCGPART: 1056 ((struct partinfo *)data)->disklab = lp; 1057 ((struct partinfo *)data)->part = 1058 &lp->d_partitions[RDPART(dev)]; 1059 return (0); 1060 1061 case DIOCWLABEL: 1062 if ((flag & FWRITE) == 0) 1063 return (EBADF); 1064 if (*(int *)data) 1065 sc->sc_flags |= RDF_WLABEL; 1066 else 1067 sc->sc_flags &= ~RDF_WLABEL; 1068 return (0); 1069 1070 case DIOCSDINFO: 1071 if ((flag & FWRITE) == 0) 1072 return (EBADF); 1073 return (setdisklabel(lp, (struct disklabel *)data, 1074 (sc->sc_flags & RDF_WLABEL) ? 0 : sc->sc_dk.dk_openmask, 1075 (struct cpu_disklabel *)0)); 1076 1077 case DIOCWDINFO: 1078 if ((flag & FWRITE) == 0) 1079 return (EBADF); 1080 error = setdisklabel(lp, (struct disklabel *)data, 1081 (sc->sc_flags & RDF_WLABEL) ? 0 : sc->sc_dk.dk_openmask, 1082 (struct cpu_disklabel *)0); 1083 if (error) 1084 return (error); 1085 flags = sc->sc_flags; 1086 sc->sc_flags = RDF_ALIVE | RDF_WLABEL; 1087 error = writedisklabel(RDLABELDEV(dev), rdstrategy, lp, 1088 (struct cpu_disklabel *)0); 1089 sc->sc_flags = flags; 1090 return (error); 1091 1092 case DIOCGDEFLABEL: 1093 rdgetdefaultlabel(sc, (struct disklabel *)data); 1094 return (0); 1095 } 1096 return (EINVAL); 1097 } 1098 1099 void 1100 rdgetdefaultlabel(sc, lp) 1101 struct rd_softc *sc; 1102 struct disklabel *lp; 1103 { 1104 int type = sc->sc_type; 1105 1106 memset((caddr_t)lp, 0, sizeof(struct disklabel)); 1107 1108 lp->d_type = DTYPE_GPIB; 1109 lp->d_secsize = DEV_BSIZE; 1110 lp->d_nsectors = rdidentinfo[type].ri_nbpt; 1111 lp->d_ntracks = rdidentinfo[type].ri_ntpc; 1112 lp->d_ncylinders = rdidentinfo[type].ri_ncyl; 1113 lp->d_secpercyl = lp->d_ntracks * lp->d_nsectors; 1114 lp->d_secperunit = lp->d_ncylinders * lp->d_secpercyl; 1115 1116 strncpy(lp->d_typename, rdidentinfo[type].ri_desc, 16); 1117 strncpy(lp->d_packname, "fictitious", 16); 1118 lp->d_rpm = 3000; 1119 lp->d_interleave = 1; 1120 lp->d_flags = 0; 1121 1122 lp->d_partitions[RAW_PART].p_offset = 0; 1123 lp->d_partitions[RAW_PART].p_size = 1124 lp->d_secperunit * (lp->d_secsize / DEV_BSIZE); 1125 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 1126 lp->d_npartitions = RAW_PART + 1; 1127 1128 lp->d_magic = DISKMAGIC; 1129 lp->d_magic2 = DISKMAGIC; 1130 lp->d_checksum = dkcksum(lp); 1131 } 1132 1133 int 1134 rdsize(dev) 1135 dev_t dev; 1136 { 1137 struct rd_softc *sc; 1138 int psize, didopen = 0; 1139 1140 sc = device_lookup(&rd_cd, RDUNIT(dev)); 1141 if (sc == NULL || (sc->sc_flags & RDF_ALIVE) == 0) 1142 return (-1); 1143 1144 /* 1145 * We get called very early on (via swapconf) 1146 * without the device being open so we may need 1147 * to handle it here. 1148 */ 1149 if (sc->sc_dk.dk_openmask == 0) { 1150 if (rdopen(dev, FREAD | FWRITE, S_IFBLK, NULL)) 1151 return (-1); 1152 didopen = 1; 1153 } 1154 psize = sc->sc_dk.dk_label->d_partitions[RDPART(dev)].p_size * 1155 (sc->sc_dk.dk_label->d_secsize / DEV_BSIZE); 1156 if (didopen) 1157 (void) rdclose(dev, FREAD | FWRITE, S_IFBLK, NULL); 1158 return (psize); 1159 } 1160 1161 1162 static int rddoingadump; /* simple mutex */ 1163 1164 /* 1165 * Non-interrupt driven, non-dma dump routine. 1166 */ 1167 int 1168 rddump(dev, blkno, va, size) 1169 dev_t dev; 1170 daddr_t blkno; 1171 caddr_t va; 1172 size_t size; 1173 { 1174 struct rd_softc *sc; 1175 int sectorsize; /* size of a disk sector */ 1176 int nsects; /* number of sectors in partition */ 1177 int sectoff; /* sector offset of partition */ 1178 int totwrt; /* total number of sectors left to write */ 1179 int nwrt; /* current number of sectors to write */ 1180 int slave; 1181 struct disklabel *lp; 1182 u_int8_t stat; 1183 1184 /* Check for recursive dump; if so, punt. */ 1185 if (rddoingadump) 1186 return (EFAULT); 1187 rddoingadump = 1; 1188 1189 sc = device_lookup(&rd_cd, RDUNIT(dev)); 1190 if (sc == NULL || (sc->sc_flags & RDF_ALIVE) == 0) 1191 return (ENXIO); 1192 1193 DPRINTF(RDB_FOLLOW, ("rddump: sc=%p\n", sc)); 1194 1195 slave = sc->sc_slave; 1196 1197 /* 1198 * Convert to disk sectors. Request must be a multiple of size. 1199 */ 1200 lp = sc->sc_dk.dk_label; 1201 sectorsize = lp->d_secsize; 1202 if ((size % sectorsize) != 0) 1203 return (EFAULT); 1204 totwrt = size / sectorsize; 1205 blkno = dbtob(blkno) / sectorsize; /* blkno in DEV_BSIZE units */ 1206 1207 nsects = lp->d_partitions[RDPART(dev)].p_size; 1208 sectoff = lp->d_partitions[RDPART(dev)].p_offset; 1209 1210 /* Check transfer bounds against partition size. */ 1211 if ((blkno < 0) || (blkno + totwrt) > nsects) 1212 return (EINVAL); 1213 1214 /* Offset block number to start of partition. */ 1215 blkno += sectoff; 1216 1217 while (totwrt > 0) { 1218 nwrt = totwrt; /* XXX */ 1219 #ifndef RD_DUMP_NOT_TRUSTED 1220 /* 1221 * Fill out and send GPIB command. 1222 */ 1223 sc->sc_ioc.c_unit = CS80CMD_SUNIT(sc->sc_punit); 1224 sc->sc_ioc.c_volume = CS80CMD_SVOL(0); 1225 sc->sc_ioc.c_saddr = CS80CMD_SADDR; 1226 sc->sc_ioc.c_hiaddr = 0; 1227 sc->sc_ioc.c_addr = RDBTOS(blkno); 1228 sc->sc_ioc.c_nop2 = CS80CMD_NOP; 1229 sc->sc_ioc.c_slen = CS80CMD_SLEN; 1230 sc->sc_ioc.c_len = nwrt * sectorsize; 1231 sc->sc_ioc.c_cmd = CS80CMD_WRITE; 1232 (void) gpibsend(sc->sc_ic, slave, CS80CMD_SCMD, 1233 &sc->sc_ioc.c_unit, sizeof(sc->sc_ioc)-3); 1234 if (gpibswait(sc->sc_ic, slave)) 1235 return (EIO); 1236 /* 1237 * Send the data. 1238 */ 1239 (void) gpibsend(sc->sc_ic, slave, CS80CMD_EXEC, va, 1240 nwrt * sectorsize); 1241 (void) gpibswait(sc->sc_ic, slave); 1242 (void) gpibrecv(sc->sc_ic, slave, CS80CMD_QSTAT, &stat, 1); 1243 if (stat) 1244 return (EIO); 1245 #else /* RD_DUMP_NOT_TRUSTED */ 1246 /* Let's just talk about this first... */ 1247 printf("%s: dump addr %p, blk %d\n", sc->sc_dev.dv_xname, 1248 va, blkno); 1249 delay(500 * 1000); /* half a second */ 1250 #endif /* RD_DUMP_NOT_TRUSTED */ 1251 1252 /* update block count */ 1253 totwrt -= nwrt; 1254 blkno += nwrt; 1255 va += sectorsize * nwrt; 1256 } 1257 rddoingadump = 0; 1258 return (0); 1259 } 1260
Indexes created Thu Sep 25 08:09:54 GMT 2025