fd.c revision 1.2
1 /* $NetBSD: fd.c,v 1.2 1995/02/22 21:37:15 pk Exp $ */ 2 3 /*- 4 * Copyright (c) 1993, 1994, 1995 Charles Hannum. 5 * Copyright (c) 1995 Paul Kranenburg. 6 * Copyright (c) 1990 The Regents of the University of California. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to Berkeley by 10 * Don Ahn. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the University of 23 * California, Berkeley and its contributors. 24 * 4. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)fd.c 7.4 (Berkeley) 5/25/91 41 */ 42 43 #include <sys/param.h> 44 #include <sys/systm.h> 45 #include <sys/kernel.h> 46 #include <sys/conf.h> 47 #include <sys/file.h> 48 #include <sys/ioctl.h> 49 #include <sys/device.h> 50 #include <sys/disklabel.h> 51 #include <sys/dkstat.h> 52 #include <sys/disk.h> 53 #include <sys/buf.h> 54 #include <sys/uio.h> 55 #include <sys/syslog.h> 56 #include <sys/queue.h> 57 58 #include <machine/cpu.h> 59 #include <machine/autoconf.h> 60 #include <sparc/sparc/auxreg.h> 61 #include <sparc/dev/fdreg.h> 62 #include <sparc/dev/fdvar.h> 63 64 #define FDUNIT(dev) (minor(dev) / 8) 65 #define FDTYPE(dev) (minor(dev) % 8) 66 67 #define b_cylin b_resid 68 69 #define FD_DEBUG 70 #ifdef FD_DEBUG 71 int fdc_debug = 0; 72 #endif 73 74 enum fdc_state { 75 DEVIDLE = 0, 76 MOTORWAIT, 77 DOSEEK, 78 SEEKWAIT, 79 SEEKTIMEDOUT, 80 SEEKCOMPLETE, 81 DOIO, 82 IOCOMPLETE, 83 IOTIMEDOUT, 84 DORESET, 85 RESETCOMPLETE, 86 RESETTIMEDOUT, 87 DORECAL, 88 RECALWAIT, 89 RECALTIMEDOUT, 90 RECALCOMPLETE, 91 }; 92 93 /* software state, per controller */ 94 struct fdc_softc { 95 struct dkdevice sc_dk; /* boilerplate */ 96 struct intrhand sc_sih; 97 struct intrhand sc_hih; 98 caddr_t sc_reg; 99 struct fd_softc *sc_fd[4]; /* pointers to children */ 100 TAILQ_HEAD(drivehead, fd_softc) sc_drives; 101 enum fdc_state sc_state; 102 int sc_flags; 103 #define FDC_82077 0x01 104 #define FDC_NEEDHEADSETTLE 0x02 105 #define FDC_EIS 0x04 106 int sc_errors; /* number of retries so far */ 107 int sc_cfg; /* current configuration */ 108 struct fdcio sc_io; 109 #define sc_reg_msr sc_io.fdcio_reg_msr 110 #define sc_reg_fifo sc_io.fdcio_reg_fifo 111 #define sc_reg_dor sc_io.fdcio_reg_dor 112 #define sc_reg_drs sc_io.fdcio_reg_msr 113 #define sc_istate sc_io.fdcio_istate 114 #define sc_data sc_io.fdcio_data 115 #define sc_tc sc_io.fdcio_tc 116 #define sc_nstat sc_io.fdcio_nstat 117 #define sc_status sc_io.fdcio_status 118 }; 119 120 #ifndef FDC_C_HANDLER 121 extern struct fdcio *fdciop; 122 #endif 123 124 /* controller driver configuration */ 125 int fdcmatch __P((struct device *, void *, void *)); 126 void fdcattach __P((struct device *, struct device *, void *)); 127 128 struct cfdriver fdccd = { 129 NULL, "fdc", fdcmatch, fdcattach, DV_DULL, sizeof(struct fdc_softc) 130 }; 131 132 /* 133 * Floppies come in various flavors, e.g., 1.2MB vs 1.44MB; here is how 134 * we tell them apart. 135 */ 136 struct fd_type { 137 int sectrac; /* sectors per track */ 138 int heads; /* number of heads */ 139 int seccyl; /* sectors per cylinder */ 140 int secsize; /* size code for sectors */ 141 int datalen; /* data len when secsize = 0 */ 142 int steprate; /* step rate and head unload time */ 143 int gap1; /* gap len between sectors */ 144 int gap2; /* formatting gap */ 145 int tracks; /* total num of tracks */ 146 int size; /* size of disk in sectors */ 147 int step; /* steps per cylinder */ 148 int rate; /* transfer speed code */ 149 char *name; 150 }; 151 152 /* The order of entries in the following table is important -- BEWARE! */ 153 struct fd_type fd_types[] = { 154 { 18,2,36,2,0xff,0xcf,0x1b,0x6c,80,2880,1,FDC_500KBPS,"1.44MB" }, /* 1.44MB diskette */ 155 { 15,2,30,2,0xff,0xdf,0x1b,0x54,80,2400,1,FDC_500KBPS,"1.2MB" }, /* 1.2 MB AT-diskettes */ 156 { 9,2,18,2,0xff,0xdf,0x23,0x50,40, 720,2,FDC_300KBPS,"360KB/AT" }, /* 360kB in 1.2MB drive */ 157 { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,1,FDC_250KBPS,"360KB/PC" }, /* 360kB PC diskettes */ 158 { 9,2,18,2,0xff,0xdf,0x2a,0x50,80,1440,1,FDC_250KBPS,"720KB" }, /* 3.5" 720kB diskette */ 159 { 9,2,18,2,0xff,0xdf,0x23,0x50,80,1440,1,FDC_300KBPS,"720KB/x" }, /* 720kB in 1.2MB drive */ 160 { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,2,FDC_250KBPS,"360KB/x" }, /* 360kB in 720kB drive */ 161 }; 162 163 /* software state, per disk (with up to 4 disks per ctlr) */ 164 struct fd_softc { 165 struct dkdevice sc_dk; 166 167 struct fd_type *sc_deftype; /* default type descriptor */ 168 struct fd_type *sc_type; /* current type descriptor */ 169 170 daddr_t sc_blkno; /* starting block number */ 171 int sc_bcount; /* byte count left */ 172 int sc_skip; /* bytes already transferred */ 173 int sc_nblks; /* number of blocks currently tranferring */ 174 int sc_nbytes; /* number of bytes currently tranferring */ 175 176 int sc_drive; /* physical unit number */ 177 int sc_flags; 178 #define FD_OPEN 0x01 /* it's open */ 179 #define FD_MOTOR 0x02 /* motor should be on */ 180 #define FD_MOTOR_WAIT 0x04 /* motor coming up */ 181 int sc_cylin; /* where we think the head is */ 182 183 TAILQ_ENTRY(fd_softc) sc_drivechain; 184 int sc_ops; /* I/O ops since last switch */ 185 struct buf sc_q; /* head of buf chain */ 186 }; 187 188 /* floppy driver configuration */ 189 int fdmatch __P((struct device *, void *, void *)); 190 void fdattach __P((struct device *, struct device *, void *)); 191 192 struct cfdriver fdcd = { 193 NULL, "fd", fdmatch, fdattach, DV_DISK, sizeof(struct fd_softc) 194 }; 195 196 void fdgetdisklabel __P((struct fd_softc *)); 197 int fd_get_parms __P((struct fd_softc *)); 198 void fdstrategy __P((struct buf *)); 199 void fdstart __P((struct fd_softc *)); 200 201 struct dkdriver fddkdriver = { fdstrategy }; 202 203 struct fd_type *fd_nvtotype __P((char *, int, int)); 204 void fd_set_motor __P((struct fdc_softc *fdc, int reset)); 205 void fd_motor_off __P((void *arg)); 206 void fd_motor_on __P((void *arg)); 207 int fdcresult __P((struct fdc_softc *fdc)); 208 int out_fdc __P((struct fdc_softc *fdc, u_char x)); 209 void fdcstart __P((struct fdc_softc *fdc)); 210 void fdcstatus __P((struct device *dv, int n, char *s)); 211 void fdctimeout __P((void *arg)); 212 void fdcpseudointr __P((void *arg)); 213 #ifdef FDC_C_HANDLER 214 int fdchwintr __P((struct fdc_softc *)); 215 #else 216 void fdchwintr __P((void)); 217 #endif 218 int fdcswintr __P((struct fdc_softc *)); 219 void fdcretry __P((struct fdc_softc *fdc)); 220 void fdfinish __P((struct fd_softc *fd, struct buf *bp)); 221 222 #if PIL_FDSOFT == 4 223 #define IE_FDSOFT IE_L4 224 #else 225 #error 4 226 #endif 227 228 int 229 fdcmatch(parent, match, aux) 230 struct device *parent; 231 void *match, *aux; 232 { 233 struct cfdata *cf = match; 234 register struct confargs *ca = aux; 235 register struct romaux *ra = &ca->ca_ra; 236 237 /* Sun PROMs call the controller an "fd" */ 238 if (strcmp("fd", ra->ra_name)) 239 return (0); 240 if (ca->ca_bustype == BUS_MAIN) 241 return (1); 242 243 return (0); 244 } 245 246 /* 247 * Arguments passed between fdcattach and fdprobe. 248 */ 249 struct fdc_attach_args { 250 int fa_drive; 251 struct fd_type *fa_deftype; 252 }; 253 254 /* 255 * Print the location of a disk drive (called just before attaching the 256 * the drive). If `fdc' is not NULL, the drive was found but was not 257 * in the system config file; print the drive name as well. 258 * Return QUIET (config_find ignores this if the device was configured) to 259 * avoid printing `fdN not configured' messages. 260 */ 261 int 262 fdprint(aux, fdc) 263 void *aux; 264 char *fdc; 265 { 266 register struct fdc_attach_args *fa = aux; 267 268 if (!fdc) 269 printf(" drive %d", fa->fa_drive); 270 return QUIET; 271 } 272 273 static void 274 fdconf(fdc) 275 struct fdc_softc *fdc; 276 { 277 int vroom; 278 279 if (out_fdc(fdc, NE7CMD_DUMPREG) || fdcresult(fdc) != 10) 280 return; 281 282 /* 283 * dumpreg[7] seems to be a motor-off timeout; set it to whatever 284 * the PROM thinks is appropriate. 285 */ 286 if ((vroom = fdc->sc_status[7]) == 0) 287 vroom = 0x64; 288 289 /* Configure controller to use FIFO and Implied Seek */ 290 out_fdc(fdc, NE7CMD_CFG); 291 out_fdc(fdc, vroom); 292 out_fdc(fdc, fdc->sc_cfg); 293 out_fdc(fdc, 0); /* PRETRK */ 294 /* No result phase */ 295 } 296 297 void 298 fdcattach(parent, self, aux) 299 struct device *parent, *self; 300 void *aux; 301 { 302 register struct confargs *ca = aux; 303 struct fdc_softc *fdc = (void *)self; 304 struct fdc_attach_args fa; 305 int n, pri; 306 307 if (ca->ca_ra.ra_vaddr) 308 fdc->sc_reg = (caddr_t)ca->ca_ra.ra_vaddr; 309 else 310 fdc->sc_reg = (caddr_t)mapiodev(ca->ca_ra.ra_paddr, 311 ca->ca_ra.ra_len, 312 ca->ca_bustype); 313 314 if (cputyp == CPU_SUN4M) { 315 fdc->sc_reg_msr = &((struct fdreg_sun4m *)fdc->sc_reg)->fd_msr; 316 fdc->sc_reg_fifo = &((struct fdreg_sun4m *)fdc->sc_reg)->fd_fifo; 317 fdc->sc_reg_dor = &((struct fdreg_sun4m *)fdc->sc_reg)->fd_dor; 318 } else { 319 fdc->sc_reg_msr = &((struct fdreg_sun4c *)fdc->sc_reg)->fd_msr; 320 fdc->sc_reg_fifo = &((struct fdreg_sun4c *)fdc->sc_reg)->fd_fifo; 321 } 322 323 fdc->sc_state = DEVIDLE; 324 fdc->sc_istate = ISTATE_IDLE; 325 fdc->sc_flags |= FDC_EIS; 326 TAILQ_INIT(&fdc->sc_drives); 327 328 pri = ca->ca_ra.ra_intr[0].int_pri; 329 #ifdef FDC_C_HANDLER 330 fdc->sc_hih.ih_fun = (void *)fdchwintr; 331 fdc->sc_hih.ih_arg = fdc; 332 intr_establish(pri, &fdc->sc_hih); 333 #else 334 fdciop = &fdc->sc_io; 335 intr_fasttrap(pri, fdchwintr); 336 #endif 337 fdc->sc_sih.ih_fun = (void *)fdcswintr; 338 fdc->sc_sih.ih_arg = fdc; 339 intr_establish(PIL_FDSOFT, &fdc->sc_sih); 340 341 if (out_fdc(fdc, NE7CMD_VERSION)) 342 return; 343 n = fdcresult(fdc); 344 if (n == 1 && fdc->sc_status[0] == 0x90) { 345 fdc->sc_flags |= FDC_82077; 346 if (cputyp != CPU_SUN4M) 347 printf(" Hmmm.. "); 348 } else { 349 /* Not a 82077 */ 350 if (cputyp != CPU_SUN4C) 351 printf(" Hmmm.. "); 352 } 353 354 /* 355 * Configure controller; enable FIFO, Implied seek, no POLL mode?. 356 * Note: CFG_EFIFO is active-low, initial threshold value: 0 357 */ 358 fdc->sc_cfg = CFG_EIS|/*CFG_EFIFO|*/CFG_POLL|(0 & CFG_THRHLD_MASK); 359 fdconf(fdc); 360 361 if (fdc->sc_flags & FDC_82077) { 362 /* Lock configuration across soft resets. */ 363 out_fdc(fdc, NE7CMD_LOCK | CFG_LOCK); 364 if (fdcresult(fdc) != 1) 365 printf(" CFGLOCK: unexpected response"); 366 } 367 368 printf(" pri %d, softpri %d: chip %s\n", pri, PIL_FDSOFT, 369 (fdc->sc_flags & FDC_82077)?"82077":"82072"); 370 371 /* physical limit: four drives per controller. */ 372 for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) { 373 fa.fa_deftype = NULL; /* unknown */ 374 fa.fa_deftype = &fd_types[0]; /* XXX */ 375 (void)config_found(self, (void *)&fa, fdprint); 376 } 377 } 378 379 int 380 fdmatch(parent, match, aux) 381 struct device *parent; 382 void *match, *aux; 383 { 384 struct fdc_softc *fdc = (void *)parent; 385 struct cfdata *cf = match; 386 struct fdc_attach_args *fa = aux; 387 int drive = fa->fa_drive; 388 int n; 389 390 if (fdc->sc_flags & FDC_82077) { 391 /* select drive and turn on motor */ 392 *fdc->sc_reg_dor = drive | FDO_FRST | FDO_MOEN(drive); 393 /* wait for motor to spin up */ 394 delay(250000); 395 } else { 396 if (drive > 0) 397 /* XXX - drive 0 always answers */ 398 return 0; 399 auxregbisc(AUXIO_FDS, 0); 400 } 401 fdc->sc_nstat = 0; 402 out_fdc(fdc, NE7CMD_RECAL); 403 out_fdc(fdc, drive); 404 /* wait for recalibrate */ 405 for (n = 0; n < 100000; n++) { 406 delay(10); 407 if ((*fdc->sc_reg_msr & (NE7_RQM|NE7_DIO|NE7_CB)) == NE7_RQM) { 408 /* wait a bit longer till device *really* is ready */ 409 delay(100000); 410 if (out_fdc(fdc, NE7CMD_SENSEI)) 411 break; 412 fdcresult(fdc); 413 if (n == 1 && fdc->sc_status[0] == 0x80) 414 /* 415 * Got `invalid command'; we interpret it 416 * to mean that the re-calibrate hasn't in 417 * fact finished yet 418 */ 419 continue; 420 break; 421 } 422 } 423 n = fdc->sc_nstat; 424 #ifdef FD_DEBUG 425 if (fdc_debug) { 426 int i; 427 printf("fdprobe: %d stati:", n); 428 for (i = 0; i < n; i++) 429 printf(" %x", fdc->sc_status[i]); 430 printf("\n"); 431 } 432 #endif 433 if (n != 2 || (fdc->sc_status[0] & 0xf8) != 0x20) 434 return 0; 435 /* turn off motor */ 436 if (fdc->sc_flags & FDC_82077) { 437 /* select drive and turn on motor */ 438 *fdc->sc_reg_dor = FDO_FRST; 439 } else { 440 auxregbisc(0, AUXIO_FDS); 441 } 442 443 return 1; 444 } 445 446 /* 447 * Controller is working, and drive responded. Attach it. 448 */ 449 void 450 fdattach(parent, self, aux) 451 struct device *parent, *self; 452 void *aux; 453 { 454 struct fdc_softc *fdc = (void *)parent; 455 struct fd_softc *fd = (void *)self; 456 struct fdc_attach_args *fa = aux; 457 struct fd_type *type = fa->fa_deftype; 458 int drive = fa->fa_drive; 459 460 /* XXX Allow `flags' to override device type? */ 461 462 if (type) 463 printf(": %s %d cyl, %d head, %d sec\n", type->name, 464 type->tracks, type->heads, type->sectrac); 465 else 466 printf(": density unknown\n"); 467 468 fd->sc_cylin = -1; 469 fd->sc_drive = drive; 470 fd->sc_deftype = type; 471 fdc->sc_fd[drive] = fd; 472 fd->sc_dk.dk_driver = &fddkdriver; 473 #if 0 474 /* XXX Need to do some more fiddling with sc_dk. */ 475 /* XXX sparc's dk_establish is bogus */ 476 dk_establish(&fd->sc_dk, &fd->sc_dk.dk_dev); 477 #endif 478 } 479 480 inline struct fd_type * 481 fd_dev_to_type(fd, dev) 482 struct fd_softc *fd; 483 dev_t dev; 484 { 485 int type = FDTYPE(dev); 486 487 if (type > (sizeof(fd_types) / sizeof(fd_types[0]))) 488 return NULL; 489 return type ? &fd_types[type - 1] : fd->sc_deftype; 490 } 491 492 void 493 fdstrategy(bp) 494 register struct buf *bp; /* IO operation to perform */ 495 { 496 struct fd_softc *fd; 497 int unit = FDUNIT(bp->b_dev); 498 int sz; 499 int s; 500 501 /* Valid unit, controller, and request? */ 502 if (unit >= fdcd.cd_ndevs || 503 (fd = fdcd.cd_devs[unit]) == 0 || 504 bp->b_blkno < 0 || 505 (bp->b_bcount % FDC_BSIZE) != 0) { 506 bp->b_error = EINVAL; 507 goto bad; 508 } 509 510 /* If it's a null transfer, return immediately. */ 511 if (bp->b_bcount == 0) 512 goto done; 513 514 sz = howmany(bp->b_bcount, FDC_BSIZE); 515 516 if (bp->b_blkno + sz > fd->sc_type->size) { 517 sz = fd->sc_type->size - bp->b_blkno; 518 if (sz == 0) { 519 /* If exactly at end of disk, return EOF. */ 520 bp->b_resid = bp->b_bcount; 521 goto done; 522 } 523 if (sz < 0) { 524 /* If past end of disk, return EINVAL. */ 525 bp->b_error = EINVAL; 526 goto bad; 527 } 528 /* Otherwise, truncate request. */ 529 bp->b_bcount = sz << DEV_BSHIFT; 530 } 531 532 bp->b_cylin = bp->b_blkno / (FDC_BSIZE / DEV_BSIZE) / fd->sc_type->seccyl; 533 534 #ifdef FD_DEBUG 535 if (fdc_debug > 1) 536 printf("fdstrategy: b_blkno %d b_bcount %d blkno %d cylin %d\n", 537 bp->b_blkno, bp->b_bcount, fd->sc_blkno, bp->b_cylin); 538 #endif 539 540 /* Queue transfer on drive, activate drive and controller if idle. */ 541 s = splbio(); 542 disksort(&fd->sc_q, bp); 543 untimeout(fd_motor_off, fd); /* a good idea */ 544 if (!fd->sc_q.b_active) 545 fdstart(fd); 546 #ifdef DIAGNOSTIC 547 else { 548 struct fdc_softc *fdc = (void *)fd->sc_dk.dk_dev.dv_parent; 549 if (fdc->sc_state == DEVIDLE) { 550 printf("fdstrategy: controller inactive\n"); 551 fdcstart(fdc); 552 } 553 } 554 #endif 555 splx(s); 556 return; 557 558 bad: 559 bp->b_flags |= B_ERROR; 560 done: 561 /* Toss transfer; we're done early. */ 562 biodone(bp); 563 } 564 565 void 566 fdstart(fd) 567 struct fd_softc *fd; 568 { 569 struct fdc_softc *fdc = (void *)fd->sc_dk.dk_dev.dv_parent; 570 int active = fdc->sc_drives.tqh_first != 0; 571 572 /* Link into controller queue. */ 573 fd->sc_q.b_active = 1; 574 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 575 576 /* If controller not already active, start it. */ 577 if (!active) 578 fdcstart(fdc); 579 } 580 581 void 582 fdfinish(fd, bp) 583 struct fd_softc *fd; 584 struct buf *bp; 585 { 586 struct fdc_softc *fdc = (void *)fd->sc_dk.dk_dev.dv_parent; 587 588 /* 589 * Move this drive to the end of the queue to give others a `fair' 590 * chance. We only force a switch if N operations are completed while 591 * another drive is waiting to be serviced, since there is a long motor 592 * startup delay whenever we switch. 593 */ 594 if (fd->sc_drivechain.tqe_next && ++fd->sc_ops >= 8) { 595 fd->sc_ops = 0; 596 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 597 if (bp->b_actf) { 598 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 599 } else 600 fd->sc_q.b_active = 0; 601 } 602 bp->b_resid = fd->sc_bcount; 603 fd->sc_skip = 0; 604 fd->sc_q.b_actf = bp->b_actf; 605 biodone(bp); 606 /* turn off motor 5s from now */ 607 timeout(fd_motor_off, fd, 5 * hz); 608 fdc->sc_state = DEVIDLE; 609 } 610 611 void 612 fd_set_motor(fdc, reset) 613 struct fdc_softc *fdc; 614 int reset; 615 { 616 struct fd_softc *fd; 617 u_char status; 618 int n; 619 620 if (fdc->sc_flags & FDC_82077) { 621 if (fd = fdc->sc_drives.tqh_first) 622 status = fd->sc_drive; 623 else 624 status = 0; 625 if (!reset) 626 status |= FDO_FRST | FDO_FDMAEN; 627 for (n = 0; n < 4; n++) 628 if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) 629 status |= FDO_MOEN(n); 630 *fdc->sc_reg_dor = status; 631 } else { 632 int on = 0; 633 634 for (n = 0; n < 4; n++) 635 if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) 636 on = 1; 637 if (on) { 638 auxregbisc(AUXIO_FDS, 0); 639 } else { 640 auxregbisc(0, AUXIO_FDS); 641 } 642 delay(10); 643 if (reset) { 644 *fdc->sc_reg_drs = DRS_RESET; 645 delay(10); 646 *fdc->sc_reg_drs = 0; 647 #ifdef FD_DEBUG 648 if (fdc_debug) 649 printf("fdc reset\n"); 650 #endif 651 fdconf(fdc); 652 } 653 654 } 655 } 656 657 void 658 fd_motor_off(arg) 659 void *arg; 660 { 661 struct fd_softc *fd = arg; 662 int s; 663 664 s = splbio(); 665 fd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 666 fd_set_motor((struct fdc_softc *)fd->sc_dk.dk_dev.dv_parent, 0); 667 splx(s); 668 } 669 670 void 671 fd_motor_on(arg) 672 void *arg; 673 { 674 struct fd_softc *fd = arg; 675 struct fdc_softc *fdc = (void *)fd->sc_dk.dk_dev.dv_parent; 676 int s; 677 678 s = splbio(); 679 fd->sc_flags &= ~FD_MOTOR_WAIT; 680 if ((fdc->sc_drives.tqh_first == fd) && (fdc->sc_state == MOTORWAIT)) 681 (void) fdcswintr(fdc); 682 splx(s); 683 } 684 685 int 686 fdcresult(fdc) 687 struct fdc_softc *fdc; 688 { 689 u_char i; 690 int j = 100000, 691 n = 0; 692 693 for (; j; j--) { 694 i = *fdc->sc_reg_msr & (NE7_DIO | NE7_RQM | NE7_CB); 695 if (i == NE7_RQM) 696 return (fdc->sc_nstat = n); 697 if (i == (NE7_DIO | NE7_RQM | NE7_CB)) { 698 if (n >= sizeof(fdc->sc_status)) { 699 log(LOG_ERR, "fdcresult: overrun\n"); 700 return -1; 701 } 702 fdc->sc_status[n++] = *fdc->sc_reg_fifo; 703 } 704 } 705 log(LOG_ERR, "fdcresult: timeout\n"); 706 return (fdc->sc_nstat = -1); 707 } 708 709 int 710 out_fdc(fdc, x) 711 struct fdc_softc *fdc; 712 u_char x; 713 { 714 int i = 100000; 715 716 while (((*fdc->sc_reg_msr & (NE7_DIO|NE7_RQM)) != NE7_RQM) && i-- > 0); 717 if (i <= 0) 718 return -1; 719 720 *fdc->sc_reg_fifo = x; 721 return 0; 722 } 723 724 int 725 Fdopen(dev, flags) 726 dev_t dev; 727 int flags; 728 { 729 int unit; 730 struct fd_softc *fd; 731 struct fd_type *type; 732 733 unit = FDUNIT(dev); 734 if (unit >= fdcd.cd_ndevs) 735 return ENXIO; 736 fd = fdcd.cd_devs[unit]; 737 if (fd == 0) 738 return ENXIO; 739 type = fd_dev_to_type(fd, dev); 740 if (type == NULL) 741 return ENXIO; 742 743 if ((fd->sc_flags & FD_OPEN) != 0 && 744 fd->sc_type != type) 745 return EBUSY; 746 747 fd->sc_type = type; 748 fd->sc_cylin = -1; 749 fd->sc_flags |= FD_OPEN; 750 751 return 0; 752 } 753 754 int 755 Fdclose(dev, flags) 756 dev_t dev; 757 int flags; 758 { 759 struct fd_softc *fd = fdcd.cd_devs[FDUNIT(dev)]; 760 761 fd->sc_flags &= ~FD_OPEN; 762 return 0; 763 } 764 765 void 766 fdcstart(fdc) 767 struct fdc_softc *fdc; 768 { 769 770 #ifdef DIAGNOSTIC 771 /* only got here if controller's drive queue was inactive; should 772 be in idle state */ 773 if (fdc->sc_state != DEVIDLE) { 774 printf("fdcstart: not idle\n"); 775 return; 776 } 777 #endif 778 (void) fdcswintr(fdc); 779 } 780 781 void 782 fdcstatus(dv, n, s) 783 struct device *dv; 784 int n; 785 char *s; 786 { 787 struct fdc_softc *fdc = (void *)dv->dv_parent; 788 789 #if 0 790 /* 791 * A 82072 seems to return <invalid command> on 792 * gratuitous Sense Interrupt commands. 793 */ 794 if (n == 0 && (fdc->sc_flags & FDC_82077)) { 795 out_fdc(fdc, NE7CMD_SENSEI); 796 (void) fdcresult(fdc); 797 n = 2; 798 } 799 #endif 800 801 /* Just print last status */ 802 n = fdc->sc_nstat; 803 804 printf("%s: %s: state %d", dv->dv_xname, s, fdc->sc_state); 805 806 switch (n) { 807 case 0: 808 printf("\n"); 809 break; 810 case 2: 811 printf(" (st0 %b cyl %d)\n", 812 fdc->sc_status[0], NE7_ST0BITS, 813 fdc->sc_status[1]); 814 break; 815 case 7: 816 printf(" (st0 %b st1 %b st2 %b cyl %d head %d sec %d)\n", 817 fdc->sc_status[0], NE7_ST0BITS, 818 fdc->sc_status[1], NE7_ST1BITS, 819 fdc->sc_status[2], NE7_ST2BITS, 820 fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); 821 break; 822 #ifdef DIAGNOSTIC 823 default: 824 printf(" fdcstatus: weird size: %d\n", n); 825 break; 826 #endif 827 } 828 } 829 830 void 831 fdctimeout(arg) 832 void *arg; 833 { 834 struct fdc_softc *fdc = arg; 835 struct fd_softc *fd = fdc->sc_drives.tqh_first; 836 int s; 837 838 s = splbio(); 839 fdcstatus(&fd->sc_dk.dk_dev, 0, "timeout"); 840 841 if (fd->sc_q.b_actf) 842 fdc->sc_state++; 843 else 844 fdc->sc_state = DEVIDLE; 845 846 (void) fdcswintr(fdc); 847 splx(s); 848 } 849 850 void 851 fdcpseudointr(arg) 852 void *arg; 853 { 854 struct fdc_softc *fdc = arg; 855 int s; 856 857 /* Just ensure it has the right spl. */ 858 s = splbio(); 859 (void) fdcswintr(fdc); 860 splx(s); 861 } 862 863 864 #ifdef FDC_C_HANDLER 865 /* 866 * hardware interrupt entry point: must be converted to `fast' 867 * (in-window) handler. 868 */ 869 int 870 fdchwintr(fdc) 871 struct fdc_softc *fdc; 872 { 873 struct buf *bp; 874 int read; 875 876 switch (fdc->sc_istate) { 877 case ISTATE_SENSEI: 878 out_fdc(fdc, NE7CMD_SENSEI); 879 fdcresult(fdc); 880 fdc->sc_istate = ISTATE_IDLE; 881 ienab_bis(IE_FDSOFT); 882 return 1; 883 case ISTATE_IDLE: 884 case ISTATE_SPURIOUS: 885 auxregbisc(0, AUXIO_FDS); /* Does this help? */ 886 fdcresult(fdc); 887 fdc->sc_istate = ISTATE_SPURIOUS; 888 printf("fdc: stray hard interrupt... "); 889 ienab_bis(IE_FDSOFT); 890 return 1; 891 case ISTATE_DMA: 892 break; 893 default: 894 printf("fdc: goofed ...\n"); 895 return 1; 896 } 897 898 read = bp->b_flags & B_READ; 899 for (;;) { 900 register int msr; 901 902 msr = *fdc->sc_reg_msr; 903 904 if ((msr & NE7_RQM) == 0) 905 break; 906 907 if ((msr & NE7_NDM) == 0) { 908 fdcresult(fdc); 909 fdc->sc_istate = ISTATE_IDLE; 910 ienab_bis(IE_FDSOFT); 911 printf("fdc: overrun: tc = %d\n", fdc->sc_tc); 912 break; 913 } 914 915 if (msr & NE7_DIO) { 916 #ifdef DIAGNOSTIC 917 if (!read) 918 printf("fdxfer: false read\n"); 919 #endif 920 *fdc->sc_data++ = *fdc->sc_reg_fifo; 921 } else { 922 #ifdef DIAGNOSTIC 923 if (read) 924 printf("fdxfer: false write\n"); 925 #endif 926 *fdc->sc_reg_fifo = *fdc->sc_data++; 927 } 928 if (--fdc->sc_tc == 0) { 929 auxregbisc(AUXIO_FTC, 0); 930 fdc->sc_istate = ISTATE_IDLE; 931 delay(10); 932 auxregbisc(0, AUXIO_FTC); 933 fdcresult(fdc); 934 ienab_bis(IE_FDSOFT); 935 break; 936 } 937 } 938 return 1; 939 } 940 #endif 941 942 int 943 fdcswintr(fdc) 944 struct fdc_softc *fdc; 945 { 946 #define st0 fdc->sc_status[0] 947 #define st1 fdc->sc_status[1] 948 #define cyl fdc->sc_status[1] 949 #define OUT_FDC(fdc, c, s) \ 950 do { if (out_fdc(fdc, (c))) { (fdc)->sc_state = (s); goto loop; } } while(0) 951 952 struct fd_softc *fd; 953 struct buf *bp; 954 int read, head, trac, sec, i, s, nblks; 955 struct fd_type *type; 956 957 loop: 958 if (fdc->sc_istate != ISTATE_IDLE) { 959 /* Trouble... */ 960 printf("fdc: spurious interrupt: istate=%d\n", fdc->sc_istate); 961 fdc->sc_istate = ISTATE_IDLE; 962 goto doreset; 963 } 964 965 /* Is there a drive for the controller to do a transfer with? */ 966 fd = fdc->sc_drives.tqh_first; 967 if (fd == NULL) { 968 fdc->sc_state = DEVIDLE; 969 return 0; 970 } 971 972 /* Is there a transfer to this drive? If not, deactivate drive. */ 973 bp = fd->sc_q.b_actf; 974 if (bp == NULL) { 975 fd->sc_ops = 0; 976 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 977 fd->sc_q.b_active = 0; 978 goto loop; 979 } 980 981 switch (fdc->sc_state) { 982 case DEVIDLE: 983 fdc->sc_errors = 0; 984 fd->sc_skip = 0; 985 fd->sc_bcount = bp->b_bcount; 986 fd->sc_blkno = bp->b_blkno / (FDC_BSIZE / DEV_BSIZE); 987 untimeout(fd_motor_off, fd); 988 if ((fd->sc_flags & FD_MOTOR_WAIT) != 0) { 989 fdc->sc_state = MOTORWAIT; 990 return 1; 991 } 992 if ((fd->sc_flags & FD_MOTOR) == 0) { 993 /* Turn on the motor, being careful about pairing. */ 994 struct fd_softc *ofd = fdc->sc_fd[fd->sc_drive ^ 1]; 995 if (ofd && ofd->sc_flags & FD_MOTOR) { 996 untimeout(fd_motor_off, ofd); 997 ofd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 998 } 999 fd->sc_flags |= FD_MOTOR | FD_MOTOR_WAIT; 1000 fd_set_motor(fdc, 0); 1001 fdc->sc_state = MOTORWAIT; 1002 if (fdc->sc_flags & FDC_82077) { /* XXX */ 1003 /* Allow .25s for motor to stabilize. */ 1004 timeout(fd_motor_on, fd, hz / 4); 1005 } else { 1006 fd->sc_flags &= ~FD_MOTOR_WAIT; 1007 goto loop; 1008 } 1009 return 1; 1010 } 1011 /* Make sure the right drive is selected. */ 1012 fd_set_motor(fdc, 0); 1013 1014 /* fall through */ 1015 case DOSEEK: 1016 doseek: 1017 if (fdc->sc_flags & FDC_EIS) { 1018 fd->sc_cylin = bp->b_cylin; 1019 /* We use implied seek */ 1020 goto doio; 1021 } 1022 1023 if (fd->sc_cylin == bp->b_cylin) 1024 goto doio; 1025 1026 /* specify command */ 1027 OUT_FDC(fdc, NE7CMD_SPECIFY, SEEKTIMEDOUT); 1028 OUT_FDC(fdc, fd->sc_type->steprate, SEEKTIMEDOUT); 1029 OUT_FDC(fdc, 6, SEEKTIMEDOUT); /* XXX head load time == 6ms */ 1030 1031 fdc->sc_istate = ISTATE_SENSEI; 1032 /* seek function */ 1033 OUT_FDC(fdc, NE7CMD_SEEK, SEEKTIMEDOUT); 1034 OUT_FDC(fdc, fd->sc_drive, SEEKTIMEDOUT); /* drive number */ 1035 OUT_FDC(fdc, bp->b_cylin * fd->sc_type->step, SEEKTIMEDOUT); 1036 1037 fd->sc_cylin = -1; 1038 fdc->sc_state = SEEKWAIT; 1039 fdc->sc_nstat = 0; 1040 timeout(fdctimeout, fdc, 4 * hz); 1041 return 1; 1042 1043 case DOIO: 1044 doio: 1045 type = fd->sc_type; 1046 sec = fd->sc_blkno % type->seccyl; 1047 nblks = type->seccyl - sec; 1048 nblks = min(nblks, fd->sc_bcount / FDC_BSIZE); 1049 nblks = min(nblks, FDC_MAXIOSIZE / FDC_BSIZE); 1050 fd->sc_nblks = nblks; 1051 fd->sc_nbytes = nblks * FDC_BSIZE; 1052 head = sec / type->sectrac; 1053 sec -= head * type->sectrac; 1054 #ifdef DIAGNOSTIC 1055 {int block; 1056 block = (fd->sc_cylin * type->heads + head) * type->sectrac + sec; 1057 if (block != fd->sc_blkno) { 1058 printf("fdcintr: block %d != blkno %d\n", block, fd->sc_blkno); 1059 #ifdef DDB 1060 Debugger(); 1061 #endif 1062 }} 1063 #endif 1064 read = bp->b_flags & B_READ; 1065 1066 /* Setup for pseudo DMA */ 1067 fdc->sc_data = bp->b_data + fd->sc_skip; 1068 fdc->sc_tc = fd->sc_nbytes; 1069 1070 *fdc->sc_reg_drs = type->rate; 1071 #ifdef FD_DEBUG 1072 if (fdc_debug > 1) 1073 printf("fdcintr: %s drive %d track %d head %d sec %d nblks %d\n", 1074 read ? "read" : "write", fd->sc_drive, 1075 fd->sc_cylin, head, sec, nblks); 1076 #endif 1077 fdc->sc_state = IOCOMPLETE; 1078 fdc->sc_istate = ISTATE_DMA; 1079 fdc->sc_nstat = 0; 1080 if (read) 1081 OUT_FDC(fdc, NE7CMD_READ, IOTIMEDOUT); /* READ */ 1082 else 1083 OUT_FDC(fdc, NE7CMD_WRITE, IOTIMEDOUT); /* WRITE */ 1084 OUT_FDC(fdc, (head << 2) | fd->sc_drive, IOTIMEDOUT); 1085 OUT_FDC(fdc, fd->sc_cylin, IOTIMEDOUT); /* track */ 1086 OUT_FDC(fdc, head, IOTIMEDOUT); 1087 OUT_FDC(fdc, sec + 1, IOTIMEDOUT); /* sector +1 */ 1088 OUT_FDC(fdc, type->secsize, IOTIMEDOUT);/* sector size */ 1089 OUT_FDC(fdc, type->sectrac, IOTIMEDOUT);/* sectors/track */ 1090 OUT_FDC(fdc, type->gap1, IOTIMEDOUT); /* gap1 size */ 1091 OUT_FDC(fdc, type->datalen, IOTIMEDOUT);/* data length */ 1092 /* allow 2 seconds for operation */ 1093 timeout(fdctimeout, fdc, 2 * hz); 1094 return 1; /* will return later */ 1095 1096 case SEEKWAIT: 1097 untimeout(fdctimeout, fdc); 1098 fdc->sc_state = SEEKCOMPLETE; 1099 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1100 /* allow 1/50 second for heads to settle */ 1101 timeout(fdcpseudointr, fdc, hz / 50); 1102 return 1; /* will return later */ 1103 } 1104 1105 case SEEKCOMPLETE: 1106 /* Make sure seek really happened. */ 1107 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1108 cyl != bp->b_cylin * fd->sc_type->step) { 1109 #ifdef FD_DEBUG 1110 if (fdc_debug) 1111 fdcstatus(&fd->sc_dk.dk_dev, 2, "seek failed"); 1112 #endif 1113 fdcretry(fdc); 1114 goto loop; 1115 } 1116 fd->sc_cylin = bp->b_cylin; 1117 goto doio; 1118 1119 case IOTIMEDOUT: 1120 auxregbisc(AUXIO_FTC, 0); 1121 delay(10); 1122 auxregbisc(0, AUXIO_FTC); 1123 (void)fdcresult(fdc); 1124 case SEEKTIMEDOUT: 1125 case RECALTIMEDOUT: 1126 case RESETTIMEDOUT: 1127 fdcretry(fdc); 1128 goto loop; 1129 1130 case IOCOMPLETE: /* IO DONE, post-analyze */ 1131 untimeout(fdctimeout, fdc); 1132 if (fdc->sc_nstat != 7 || (st0 & 0xf8) != 0 || st1 != 0) { 1133 #ifdef FD_DEBUG 1134 if (fdc_debug) { 1135 fdcstatus(&fd->sc_dk.dk_dev, 7, 1136 bp->b_flags & B_READ 1137 ? "read failed" : "write failed"); 1138 printf("blkno %d nblks %d tc %d\n", 1139 fd->sc_blkno, fd->sc_nblks, fdc->sc_tc); 1140 } 1141 #endif 1142 if (st1 & ST1_OVERRUN) { 1143 /* Try a higher threshold */ 1144 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1145 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1146 if (thr < 15) thr++; 1147 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1148 #ifdef FD_DEBUG 1149 if (fdc_debug) 1150 printf("fdc: %d -> threshold\n", thr); 1151 #endif 1152 fdconf(fdc); 1153 } 1154 fdcretry(fdc); 1155 goto loop; 1156 } 1157 if (fdc->sc_errors) { 1158 diskerr(bp, "fd", "soft error", LOG_PRINTF, 1159 fd->sc_skip / FDC_BSIZE, (struct disklabel *)NULL); 1160 printf("\n"); 1161 fdc->sc_errors = 0; 1162 } 1163 fd->sc_blkno += fd->sc_nblks; 1164 fd->sc_skip += fd->sc_nbytes; 1165 fd->sc_bcount -= fd->sc_nbytes; 1166 if (fd->sc_bcount > 0) { 1167 bp->b_cylin = fd->sc_blkno / fd->sc_type->seccyl; 1168 goto doseek; 1169 } 1170 fdfinish(fd, bp); 1171 goto loop; 1172 1173 case DORESET: 1174 doreset: 1175 /* try a reset, keep motor on */ 1176 fd_set_motor(fdc, 1); 1177 delay(100); 1178 fd_set_motor(fdc, 0); 1179 fdc->sc_state = RESETCOMPLETE; 1180 timeout(fdctimeout, fdc, hz / 2); 1181 return 1; /* will return later */ 1182 1183 case RESETCOMPLETE: 1184 untimeout(fdctimeout, fdc); 1185 /* clear the controller output buffer */ 1186 for (i = 0; i < 4; i++) { 1187 out_fdc(fdc, NE7CMD_SENSEI); 1188 (void) fdcresult(fdc); 1189 } 1190 1191 /* fall through */ 1192 case DORECAL: 1193 fdc->sc_state = RECALWAIT; 1194 fdc->sc_istate = ISTATE_SENSEI; 1195 fdc->sc_nstat = 0; 1196 /* recalibrate function */ 1197 OUT_FDC(fdc, NE7CMD_RECAL, RECALTIMEDOUT); 1198 OUT_FDC(fdc, fd->sc_drive, RECALTIMEDOUT); 1199 timeout(fdctimeout, fdc, 5 * hz); 1200 return 1; /* will return later */ 1201 1202 case RECALWAIT: 1203 untimeout(fdctimeout, fdc); 1204 fdc->sc_state = RECALCOMPLETE; 1205 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1206 /* allow 1/30 second for heads to settle */ 1207 timeout(fdcpseudointr, fdc, hz / 30); 1208 return 1; /* will return later */ 1209 } 1210 1211 case RECALCOMPLETE: 1212 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || cyl != 0) { 1213 #ifdef FD_DEBUG 1214 if (fdc_debug) 1215 fdcstatus(&fd->sc_dk.dk_dev, 2, "recalibrate failed"); 1216 #endif 1217 fdcretry(fdc); 1218 goto loop; 1219 } 1220 fd->sc_cylin = 0; 1221 goto doseek; 1222 1223 case MOTORWAIT: 1224 if (fd->sc_flags & FD_MOTOR_WAIT) 1225 return 1; /* time's not up yet */ 1226 goto doseek; 1227 1228 default: 1229 fdcstatus(&fd->sc_dk.dk_dev, 0, "stray interrupt"); 1230 return 1; 1231 } 1232 #ifdef DIAGNOSTIC 1233 panic("fdcintr: impossible"); 1234 #endif 1235 #undef st0 1236 #undef st1 1237 #undef cyl 1238 } 1239 1240 void 1241 fdcretry(fdc) 1242 struct fdc_softc *fdc; 1243 { 1244 struct fd_softc *fd; 1245 struct buf *bp; 1246 1247 fd = fdc->sc_drives.tqh_first; 1248 bp = fd->sc_q.b_actf; 1249 1250 switch (fdc->sc_errors) { 1251 case 0: 1252 /* try again */ 1253 fdc->sc_state = 1254 (fdc->sc_flags & FDC_EIS) ? DOIO : SEEKCOMPLETE; 1255 break; 1256 1257 case 1: case 2: case 3: 1258 /* didn't work; try recalibrating */ 1259 fdc->sc_state = DORECAL; 1260 break; 1261 1262 case 4: 1263 /* still no go; reset the bastard */ 1264 fdc->sc_state = DORESET; 1265 break; 1266 1267 default: 1268 diskerr(bp, "fd", "hard error", LOG_PRINTF, 1269 fd->sc_skip / FDC_BSIZE, (struct disklabel *)NULL); 1270 printf(" (st0 %b st1 %b st2 %b cyl %d head %d sec %d)\n", 1271 fdc->sc_status[0], NE7_ST0BITS, 1272 fdc->sc_status[1], NE7_ST1BITS, 1273 fdc->sc_status[2], NE7_ST2BITS, 1274 fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); 1275 1276 bp->b_flags |= B_ERROR; 1277 bp->b_error = EIO; 1278 fdfinish(fd, bp); 1279 } 1280 fdc->sc_errors++; 1281 } 1282 1283 int 1284 fdsize(dev) 1285 dev_t dev; 1286 { 1287 1288 /* Swapping to floppies would not make sense. */ 1289 return -1; 1290 } 1291 1292 int 1293 fddump() 1294 { 1295 1296 /* Not implemented. */ 1297 return EINVAL; 1298 } 1299 1300 int 1301 fdioctl(dev, cmd, addr, flag) 1302 dev_t dev; 1303 u_long cmd; 1304 caddr_t addr; 1305 int flag; 1306 { 1307 struct fd_softc *fd = fdcd.cd_devs[FDUNIT(dev)]; 1308 struct disklabel buffer; 1309 int error; 1310 1311 switch (cmd) { 1312 case DIOCGDINFO: 1313 bzero(&buffer, sizeof(buffer)); 1314 1315 buffer.d_secpercyl = fd->sc_type->seccyl; 1316 buffer.d_type = DTYPE_FLOPPY; 1317 buffer.d_secsize = FDC_BSIZE; 1318 1319 if (readdisklabel(dev, fdstrategy, &buffer, NULL) != NULL) 1320 return EINVAL; 1321 1322 *(struct disklabel *)addr = buffer; 1323 return 0; 1324 1325 case DIOCWLABEL: 1326 if ((flag & FWRITE) == 0) 1327 return EBADF; 1328 /* XXX do something */ 1329 return 0; 1330 1331 case DIOCWDINFO: 1332 if ((flag & FWRITE) == 0) 1333 return EBADF; 1334 1335 error = setdisklabel(&buffer, (struct disklabel *)addr, 0, NULL); 1336 if (error) 1337 return error; 1338 1339 error = writedisklabel(dev, fdstrategy, &buffer, NULL); 1340 return error; 1341 1342 case FDIOCEJECT: 1343 auxregbisc(AUXIO_FDS, AUXIO_FEJ); 1344 delay(10); 1345 auxregbisc(AUXIO_FEJ, AUXIO_FDS); 1346 return 0; 1347 #ifdef DEBUG 1348 case _IO('f', 100): 1349 { 1350 int i; 1351 struct fdc_softc *fdc = (struct fdc_softc *) 1352 fd->sc_dk.dk_dev.dv_parent; 1353 1354 out_fdc(fdc, NE7CMD_DUMPREG); 1355 fdcresult(fdc); 1356 printf("dumpreg(%d regs): <", fdc->sc_nstat); 1357 for (i = 0; i < fdc->sc_nstat; i++) 1358 printf(" %x", fdc->sc_status[i]); 1359 printf(">\n"); 1360 } 1361 1362 return 0; 1363 case _IOW('f', 101, int): 1364 ((struct fdc_softc *)fd->sc_dk.dk_dev.dv_parent)->sc_cfg &= 1365 ~CFG_THRHLD_MASK; 1366 ((struct fdc_softc *)fd->sc_dk.dk_dev.dv_parent)->sc_cfg |= 1367 (*(int *)addr & CFG_THRHLD_MASK); 1368 fdconf(fd->sc_dk.dk_dev.dv_parent); 1369 return 0; 1370 case _IO('f', 102): 1371 { 1372 int i; 1373 struct fdc_softc *fdc = (struct fdc_softc *) 1374 fd->sc_dk.dk_dev.dv_parent; 1375 out_fdc(fdc, NE7CMD_SENSEI); 1376 fdcresult(fdc); 1377 printf("sensei(%d regs): <", fdc->sc_nstat); 1378 for (i=0; i< fdc->sc_nstat; i++) 1379 printf(" 0x%x", fdc->sc_status[i]); 1380 } 1381 printf(">\n"); 1382 return 0; 1383 #endif 1384 default: 1385 return ENOTTY; 1386 } 1387 1388 #ifdef DIAGNOSTIC 1389 panic("fdioctl: impossible"); 1390 #endif 1391 } 1392
Indexes created Fri Oct 03 02:09:57 GMT 2025