rd.c revision 1.19
1 /* $NetBSD: rd.c,v 1.19 2008/04/08 07:38:35 cegger 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 1.19 2008/04/08 07:38:35 cegger 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 aprint_normal("\n"); 370 aprint_error_dev(&sc->sc_dev, "can't reset device\n"); 371 return; 372 } 373 374 if (cs80describe(parent, sc->sc_slave, sc->sc_punit, &csd)) { 375 aprint_normal("\n"); 376 aprint_error_dev(&sc->sc_dev, "didn't respond to describe command\n"); 377 return; 378 } 379 memset(name, 0, sizeof(name)); 380 for (i=0, n=0; i<3; i++) { 381 name[n++] = (csd.d_name[i] >> 4) + '0'; 382 name[n++] = (csd.d_name[i] & 0x0f) + '0'; 383 } 384 385 #ifdef DEBUG 386 if (rddebug & RDB_IDENT) { 387 printf("\n%s: name: ('%s')\n", 388 device_xname(&sc->sc_dev), name); 389 printf(" iuw %x, maxxfr %d, ctype %d\n", 390 csd.d_iuw, csd.d_cmaxxfr, csd.d_ctype); 391 printf(" utype %d, bps %d, blkbuf %d, burst %d, blktime %d\n", 392 csd.d_utype, csd.d_sectsize, 393 csd.d_blkbuf, csd.d_burstsize, csd.d_blocktime); 394 printf(" avxfr %d, ort %d, atp %d, maxint %d, fv %x, rv %x\n", 395 csd.d_uavexfr, csd.d_retry, csd.d_access, 396 csd.d_maxint, csd.d_fvbyte, csd.d_rvbyte); 397 printf(" maxcyl/head/sect %d/%d/%d, maxvsect %d, inter %d\n", 398 csd.d_maxcylhead >> 8, csd.d_maxcylhead & 0xff, 399 csd.d_maxsect, csd.d_maxvsectl, csd.d_interleave); 400 printf("%s", device_xname(&sc->sc_dev)); 401 } 402 #endif 403 404 /* 405 * Take care of a couple of anomolies: 406 * 1. 7945A and 7946A both return same HW id 407 * 2. 9122S and 9134D both return same HW id 408 * 3. 9122D and 9134L both return same HW id 409 */ 410 switch (ca->ca_id) { 411 case RD7946AID: 412 if (memcmp(name, "079450", 6) == 0) 413 type = RD7945A; 414 else 415 type = RD7946A; 416 break; 417 418 case RD9134LID: 419 if (memcmp(name, "091340", 6) == 0) 420 type = RD9134L; 421 else 422 type = RD9122D; 423 break; 424 425 case RD9134DID: 426 if (memcmp(name, "091220", 6) == 0) 427 type = RD9122S; 428 else 429 type = RD9134D; 430 break; 431 } 432 433 sc->sc_type = type; 434 435 /* 436 * XXX We use DEV_BSIZE instead of the sector size value pulled 437 * XXX off the driver because all of this code assumes 512 byte 438 * XXX blocks. ICK! 439 */ 440 printf(": %s\n", rdidentinfo[type].ri_desc); 441 printf("%s: %d cylinders, %d heads, %d blocks, %d bytes/block\n", 442 device_xname(&sc->sc_dev), rdidentinfo[type].ri_ncyl, 443 rdidentinfo[type].ri_ntpc, rdidentinfo[type].ri_nblocks, 444 DEV_BSIZE); 445 446 bufq_alloc(&sc->sc_tab, "fcfs", 0); 447 448 /* 449 * Initialize and attach the disk structure. 450 */ 451 memset(&sc->sc_dk, 0, sizeof(sc->sc_dk)); 452 disk_init(&sc->sc_dk, device_xname(&sc->sc_dev), NULL); 453 disk_attach(&sc->sc_dk); 454 455 callout_init(&sc->sc_restart_ch, 0); 456 457 if (gpibregister(sc->sc_ic, sc->sc_slave, rdcallback, sc, 458 &sc->sc_hdl)) { 459 aprint_error_dev(&sc->sc_dev, "can't register callback\n"); 460 return; 461 } 462 463 sc->sc_flags = RDF_ALIVE; 464 #ifdef DEBUG 465 /* always report errors */ 466 if (rddebug & RDB_ERROR) 467 rderrthresh = 0; 468 #endif 469 #if NRND > 0 470 /* 471 * attach the device into the random source list 472 */ 473 rnd_attach_source(&sc->rnd_source, device_xname(&sc->sc_dev), 474 RND_TYPE_DISK, 0); 475 #endif 476 } 477 478 /* 479 * Read or construct a disklabel 480 */ 481 int 482 rdgetinfo(sc) 483 struct rd_softc *sc; 484 { 485 struct disklabel *lp = sc->sc_dk.dk_label; 486 struct partition *pi; 487 const char *msg; 488 489 memset(sc->sc_dk.dk_cpulabel, 0, sizeof(struct cpu_disklabel)); 490 491 rdgetdefaultlabel(sc, lp); 492 493 /* 494 * Call the generic disklabel extraction routine 495 */ 496 msg = readdisklabel(RDMAKEDEV(0, device_unit(&sc->sc_dev), RAW_PART), 497 rdstrategy, lp, NULL); 498 if (msg == NULL) 499 return (0); 500 501 pi = lp->d_partitions; 502 printf("%s: WARNING: %s\n", device_xname(&sc->sc_dev), msg); 503 504 pi[RAW_PART].p_size = rdidentinfo[sc->sc_type].ri_nblocks; 505 lp->d_npartitions = RAW_PART+1; 506 pi[0].p_size = 0; 507 508 return (0); 509 } 510 511 int 512 rdopen(dev, flags, mode, l) 513 dev_t dev; 514 int flags, mode; 515 struct lwp *l; 516 { 517 struct rd_softc *sc; 518 int error, mask, part; 519 520 sc = device_lookup(&rd_cd, RDUNIT(dev)); 521 if (sc == NULL || (sc->sc_flags & RDF_ALIVE) ==0) 522 return (ENXIO); 523 524 /* 525 * Wait for any pending opens/closes to complete 526 */ 527 while (sc->sc_flags & (RDF_OPENING | RDF_CLOSING)) 528 (void) tsleep(sc, PRIBIO, "rdopen", 0); 529 530 /* 531 * On first open, get label and partition info. 532 * We may block reading the label, so be careful 533 * to stop any other opens. 534 */ 535 if (sc->sc_dk.dk_openmask == 0) { 536 sc->sc_flags |= RDF_OPENING; 537 error = rdgetinfo(sc); 538 sc->sc_flags &= ~RDF_OPENING; 539 wakeup((void *)sc); 540 if (error) 541 return (error); 542 } 543 544 part = RDPART(dev); 545 mask = 1 << part; 546 547 /* Check that the partition exists. */ 548 if (part != RAW_PART && (part > sc->sc_dk.dk_label->d_npartitions || 549 sc->sc_dk.dk_label->d_partitions[part].p_fstype == FS_UNUSED)) 550 return (ENXIO); 551 552 /* Ensure only one open at a time. */ 553 switch (mode) { 554 case S_IFCHR: 555 sc->sc_dk.dk_copenmask |= mask; 556 break; 557 case S_IFBLK: 558 sc->sc_dk.dk_bopenmask |= mask; 559 break; 560 } 561 sc->sc_dk.dk_openmask = 562 sc->sc_dk.dk_copenmask | sc->sc_dk.dk_bopenmask; 563 564 return (0); 565 } 566 567 int 568 rdclose(dev, flag, mode, l) 569 dev_t dev; 570 int flag, mode; 571 struct lwp *l; 572 { 573 struct rd_softc *sc; 574 struct disk *dk; 575 int mask, s; 576 577 sc = device_lookup(&rd_cd, RDUNIT(dev)); 578 if (sc == NULL) 579 return (ENXIO); 580 581 dk = &sc->sc_dk; 582 583 mask = 1 << RDPART(dev); 584 if (mode == S_IFCHR) 585 dk->dk_copenmask &= ~mask; 586 else 587 dk->dk_bopenmask &= ~mask; 588 dk->dk_openmask = dk->dk_copenmask | dk->dk_bopenmask; 589 /* 590 * On last close, we wait for all activity to cease since 591 * the label/parition info will become invalid. Since we 592 * might sleep, we must block any opens while we are here. 593 * Note we don't have to about other closes since we know 594 * we are the last one. 595 */ 596 if (dk->dk_openmask == 0) { 597 sc->sc_flags |= RDF_CLOSING; 598 s = splbio(); 599 while (sc->sc_active) { 600 sc->sc_flags |= RDF_WANTED; 601 (void) tsleep(&sc->sc_tab, PRIBIO, "rdclose", 0); 602 } 603 splx(s); 604 sc->sc_flags &= ~(RDF_CLOSING | RDF_WLABEL); 605 wakeup((void *)sc); 606 } 607 return (0); 608 } 609 610 void 611 rdstrategy(bp) 612 struct buf *bp; 613 { 614 struct rd_softc *sc; 615 struct partition *pinfo; 616 daddr_t bn; 617 int sz, s; 618 int offset; 619 620 sc = device_lookup(&rd_cd, RDUNIT(bp->b_dev)); 621 622 DPRINTF(RDB_FOLLOW, 623 ("rdstrategy(%p): dev %x, bn %" PRId64 ", bcount %ld, %c\n", 624 bp, bp->b_dev, bp->b_blkno, bp->b_bcount, 625 (bp->b_flags & B_READ) ? 'R' : 'W')); 626 627 bn = bp->b_blkno; 628 sz = howmany(bp->b_bcount, DEV_BSIZE); 629 pinfo = &sc->sc_dk.dk_label->d_partitions[RDPART(bp->b_dev)]; 630 631 /* Don't perform partition translation on RAW_PART. */ 632 offset = (RDPART(bp->b_dev) == RAW_PART) ? 0 : pinfo->p_offset; 633 634 if (RDPART(bp->b_dev) != RAW_PART) { 635 /* 636 * XXX This block of code belongs in 637 * XXX bounds_check_with_label() 638 */ 639 640 if (bn < 0 || bn + sz > pinfo->p_size) { 641 sz = pinfo->p_size - bn; 642 if (sz == 0) { 643 bp->b_resid = bp->b_bcount; 644 goto done; 645 } 646 if (sz < 0) { 647 bp->b_error = EINVAL; 648 goto done; 649 } 650 bp->b_bcount = dbtob(sz); 651 } 652 /* 653 * Check for write to write protected label 654 */ 655 if (bn + offset <= LABELSECTOR && 656 #if LABELSECTOR != 0 657 bn + offset + sz > LABELSECTOR && 658 #endif 659 !(bp->b_flags & B_READ) && !(sc->sc_flags & RDF_WLABEL)) { 660 bp->b_error = EROFS; 661 goto done; 662 } 663 } 664 bp->b_rawblkno = bn + offset; 665 s = splbio(); 666 BUFQ_PUT(sc->sc_tab, bp); 667 if (sc->sc_active == 0) { 668 sc->sc_active = 1; 669 rdustart(sc); 670 } 671 splx(s); 672 return; 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((void *)&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 device_xname(&sc->sc_dev), 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 iostat_seek(sc->sc_dk.dk_stats); 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(device_parent(&sc->sc_dev), 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 device_xname(&sc->sc_dev), sc->sc_ioc.c_cmd, sc->sc_ioc.c_addr, 809 bp->b_blkno, sc->sc_resid); 810 bp->b_error = EIO; 811 bp = rdfinish(sc, bp); 812 if (bp) { 813 sc->sc_addr = bp->b_data; 814 sc->sc_resid = bp->b_bcount; 815 if (gpibrequest(sc->sc_ic, sc->sc_hdl)) 816 goto again; 817 } 818 } 819 820 void 821 rdintr(sc) 822 struct rd_softc *sc; 823 { 824 struct buf *bp; 825 u_int8_t stat = 13; /* in case gpibrecv fails */ 826 int rv, dir, restart, slave; 827 828 slave = sc->sc_slave; 829 bp = BUFQ_PEEK(sc->sc_tab); 830 831 DPRINTF(RDB_FOLLOW, ("rdintr(%s): bp %p, %c, flags %x\n", 832 device_xname(&sc->sc_dev), bp, (bp->b_flags & B_READ) ? 'R' : 'W', 833 sc->sc_flags)); 834 835 disk_unbusy(&sc->sc_dk, (bp->b_bcount - bp->b_resid), 836 (bp->b_flags & B_READ)); 837 838 if (sc->sc_flags & RDF_SEEK) { 839 sc->sc_flags &= ~RDF_SEEK; 840 dir = (bp->b_flags & B_READ ? GPIB_READ : GPIB_WRITE); 841 gpibxfer(sc->sc_ic, slave, CS80CMD_EXEC, sc->sc_addr, 842 sc->sc_resid, dir, dir == GPIB_READ); 843 disk_busy(&sc->sc_dk); 844 return; 845 } 846 if ((sc->sc_flags & RDF_SWAIT) == 0) { 847 if (gpibpptest(sc->sc_ic, slave) == 0) { 848 /* Instrumentation. */ 849 disk_busy(&sc->sc_dk); 850 sc->sc_flags |= RDF_SWAIT; 851 gpibawait(sc->sc_ic); 852 return; 853 } 854 } else 855 sc->sc_flags &= ~RDF_SWAIT; 856 rv = gpibrecv(sc->sc_ic, slave, CS80CMD_QSTAT, &stat, 1); 857 if (rv != 1 || stat) { 858 DPRINTF(RDB_ERROR, 859 ("rdintr: receive failed (rv=%d) or bad stat %d\n", rv, 860 stat)); 861 restart = rderror(sc); 862 if (sc->sc_errcnt++ < RDRETRY) { 863 if (restart) 864 rdstart(sc); 865 return; 866 } 867 bp->b_error = EIO; 868 } 869 if (rdfinish(sc, bp) != NULL) 870 rdustart(sc); 871 #if NRND > 0 872 rnd_add_uint32(&sc->rnd_source, bp->b_blkno); 873 #endif 874 } 875 876 /* 877 * Deal with errors. 878 * Returns 1 if request should be restarted, 879 * 0 if we should just quietly give up. 880 */ 881 int 882 rderror(sc) 883 struct rd_softc *sc; 884 { 885 struct cs80_stat css; 886 struct buf *bp; 887 daddr_t hwbn, pbn; 888 889 DPRINTF(RDB_FOLLOW, ("rderror: sc=%p\n", sc)); 890 891 if (cs80status(device_parent(&sc->sc_dev), sc->sc_slave, 892 sc->sc_punit, &css)) { 893 cs80reset(device_parent(&sc->sc_dev), sc->sc_slave, 894 sc->sc_punit); 895 return (1); 896 } 897 #ifdef DEBUG 898 if (rddebug & RDB_ERROR) { /* status info */ 899 printf("\n volume: %d, unit: %d\n", 900 (css.c_vu>>4)&0xF, css.c_vu&0xF); 901 printf(" reject 0x%x\n", css.c_ref); 902 printf(" fault 0x%x\n", css.c_fef); 903 printf(" access 0x%x\n", css.c_aef); 904 printf(" info 0x%x\n", css.c_ief); 905 printf(" block, P1-P10: "); 906 printf("0x%x", *(u_int32_t *)&css.c_raw[0]); 907 printf("0x%x", *(u_int32_t *)&css.c_raw[4]); 908 printf("0x%x\n", *(u_int16_t *)&css.c_raw[8]); 909 } 910 #endif 911 if (css.c_fef & FEF_REXMT) 912 return (1); 913 if (css.c_fef & FEF_PF) { 914 cs80reset(device_parent(&sc->sc_dev), sc->sc_slave, 915 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 device_xname(&sc->sc_dev), 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 device_xname(&sc->sc_dev), '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:", device_xname(&sc->sc_dev), 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, l) 1033 dev_t dev; 1034 u_long cmd; 1035 void *data; 1036 int flag; 1037 struct lwp *l; 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((void *)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 void *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", device_xname(&sc->sc_dev), 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 Fri Sep 26 20:09:58 GMT 2025