1 /* $OpenBSD: fd.c,v 1.36 2011/06/05 18:40:33 matthew Exp $ */ 2 /* $NetBSD: fd.c,v 1.112 2003/08/07 16:29:35 agc Exp $ */ 3 4 /*- 5 * Copyright (c) 2000 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Paul Kranenburg. 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /*- 34 * Copyright (c) 1990 The Regents of the University of California. 35 * All rights reserved. 36 * 37 * This code is derived from software contributed to Berkeley by 38 * Don Ahn. 39 * 40 * Redistribution and use in source and binary forms, with or without 41 * modification, are permitted provided that the following conditions 42 * are met: 43 * 1. Redistributions of source code must retain the above copyright 44 * notice, this list of conditions and the following disclaimer. 45 * 2. Redistributions in binary form must reproduce the above copyright 46 * notice, this list of conditions and the following disclaimer in the 47 * documentation and/or other materials provided with the distribution. 48 * 3. Neither the name of the University nor the names of its contributors 49 * may be used to endorse or promote products derived from this software 50 * without specific prior written permission. 51 * 52 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 53 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 55 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 56 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 57 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 58 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 59 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 60 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 61 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 62 * SUCH DAMAGE. 63 * 64 * @(#)fd.c 7.4 (Berkeley) 5/25/91 65 */ 66 67 /*- 68 * Copyright (c) 1993, 1994, 1995 Charles M. Hannum. 69 * Copyright (c) 1995 Paul Kranenburg. 70 * 71 * This code is derived from software contributed to Berkeley by 72 * Don Ahn. 73 * 74 * Redistribution and use in source and binary forms, with or without 75 * modification, are permitted provided that the following conditions 76 * are met: 77 * 1. Redistributions of source code must retain the above copyright 78 * notice, this list of conditions and the following disclaimer. 79 * 2. Redistributions in binary form must reproduce the above copyright 80 * notice, this list of conditions and the following disclaimer in the 81 * documentation and/or other materials provided with the distribution. 82 * 3. All advertising materials mentioning features or use of this software 83 * must display the following acknowledgement: 84 * This product includes software developed by the University of 85 * California, Berkeley and its contributors. 86 * 4. Neither the name of the University nor the names of its contributors 87 * may be used to endorse or promote products derived from this software 88 * without specific prior written permission. 89 * 90 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 91 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 92 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 93 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 94 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 95 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 96 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 97 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 98 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 99 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 100 * SUCH DAMAGE. 101 * 102 * @(#)fd.c 7.4 (Berkeley) 5/25/91 103 */ 104 105 #include <sys/param.h> 106 #include <sys/systm.h> 107 #include <sys/timeout.h> 108 #include <sys/kernel.h> 109 #include <sys/file.h> 110 #include <sys/ioctl.h> 111 #include <sys/conf.h> 112 #include <sys/device.h> 113 #include <sys/disklabel.h> 114 #include <sys/disk.h> 115 #include <sys/buf.h> 116 #include <sys/malloc.h> 117 #include <sys/proc.h> 118 #include <sys/uio.h> 119 #include <sys/mtio.h> 120 #include <sys/stat.h> 121 #include <sys/syslog.h> 122 #include <sys/queue.h> 123 #include <sys/dkio.h> 124 125 #include <dev/cons.h> 126 127 #include <uvm/uvm_extern.h> 128 129 #include <machine/autoconf.h> 130 #include <machine/conf.h> 131 #include <machine/intr.h> 132 #include <machine/ioctl_fd.h> 133 134 #include <sparc64/dev/auxioreg.h> 135 #include <sparc64/dev/auxiovar.h> 136 #include <sparc64/dev/ebusreg.h> 137 #include <sparc64/dev/ebusvar.h> 138 #include <sparc64/dev/fdreg.h> 139 #include <sparc64/dev/fdvar.h> 140 141 #define FDUNIT(dev) ((minor(dev) / MAXPARTITIONS) / 8) 142 #define FDTYPE(dev) ((minor(dev) / MAXPARTITIONS) % 8) 143 144 #define FTC_FLIP \ 145 do { \ 146 auxio_fd_control(AUXIO_LED_FTC); \ 147 auxio_fd_control(0); \ 148 } while (0) 149 150 /* XXX misuse a flag to identify format operation */ 151 #define B_FORMAT B_XXX 152 153 #ifdef FD_DEBUG 154 int fdc_debug = 0; 155 #endif 156 157 enum fdc_state { 158 DEVIDLE = 0, 159 MOTORWAIT, /* 1 */ 160 DOSEEK, /* 2 */ 161 SEEKWAIT, /* 3 */ 162 SEEKTIMEDOUT, /* 4 */ 163 SEEKCOMPLETE, /* 5 */ 164 DOIO, /* 6 */ 165 IOCOMPLETE, /* 7 */ 166 IOTIMEDOUT, /* 8 */ 167 IOCLEANUPWAIT, /* 9 */ 168 IOCLEANUPTIMEDOUT,/*10 */ 169 DORESET, /* 11 */ 170 RESETCOMPLETE, /* 12 */ 171 RESETTIMEDOUT, /* 13 */ 172 DORECAL, /* 14 */ 173 RECALWAIT, /* 15 */ 174 RECALTIMEDOUT, /* 16 */ 175 RECALCOMPLETE, /* 17 */ 176 DODSKCHG, /* 18 */ 177 DSKCHGWAIT, /* 19 */ 178 DSKCHGTIMEDOUT, /* 20 */ 179 }; 180 181 /* software state, per controller */ 182 struct fdc_softc { 183 struct device sc_dev; /* boilerplate */ 184 bus_space_tag_t sc_bustag; 185 186 struct timeout fdctimeout_to; 187 struct timeout fdcpseudointr_to; 188 189 struct fd_softc *sc_fd[4]; /* pointers to children */ 190 TAILQ_HEAD(drivehead, fd_softc) sc_drives; 191 enum fdc_state sc_state; 192 int sc_flags; 193 #define FDC_EBUS 0x01 194 #define FDC_NEEDHEADSETTLE 0x02 195 #define FDC_EIS 0x04 196 #define FDC_NEEDMOTORWAIT 0x08 197 #define FDC_NOEJECT 0x10 198 int sc_errors; /* number of retries so far */ 199 int sc_overruns; /* number of DMA overruns */ 200 int sc_cfg; /* current configuration */ 201 struct fdcio sc_io; 202 #define sc_handle sc_io.fdcio_handle 203 #define sc_itask sc_io.fdcio_itask 204 #define sc_istatus sc_io.fdcio_istatus 205 #define sc_data sc_io.fdcio_data 206 #define sc_tc sc_io.fdcio_tc 207 #define sc_nstat sc_io.fdcio_nstat 208 #define sc_status sc_io.fdcio_status 209 210 void *sc_sicookie; /* softintr(9) cookie */ 211 }; 212 213 /* controller driver configuration */ 214 int fdcmatch_sbus(struct device *, void *, void *); 215 int fdcmatch_ebus(struct device *, void *, void *); 216 void fdcattach_sbus(struct device *, struct device *, void *); 217 void fdcattach_ebus(struct device *, struct device *, void *); 218 219 int fdcattach(struct fdc_softc *, int); 220 221 struct cfattach fdc_sbus_ca = { 222 sizeof(struct fdc_softc), fdcmatch_sbus, fdcattach_sbus 223 }; 224 225 struct cfattach fdc_ebus_ca = { 226 sizeof(struct fdc_softc), fdcmatch_ebus, fdcattach_ebus 227 }; 228 229 struct cfdriver fdc_cd = { 230 NULL, "fdc", DV_DULL 231 }; 232 233 __inline struct fd_type *fd_dev_to_type(struct fd_softc *, dev_t); 234 235 /* The order of entries in the following table is important -- BEWARE! */ 236 struct fd_type fd_types[] = { 237 { 18,2,36,2,0xff,0xcf,0x1b,0x54,80,2880,1,FDC_500KBPS, "1.44MB" }, /* 1.44MB diskette */ 238 { 9,2,18,2,0xff,0xdf,0x2a,0x50,80,1440,1,FDC_250KBPS, "720KB" }, /* 3.5" 720kB diskette */ 239 { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,2,FDC_250KBPS, "360KB/x" }, /* 360kB in 720kB drive */ 240 { 8,2,16,3,0xff,0xdf,0x35,0x74,77,1232,1,FDC_500KBPS, "1.2MB/NEC" } /* 1.2 MB japanese format */ 241 }; 242 243 /* software state, per disk (with up to 4 disks per ctlr) */ 244 struct fd_softc { 245 struct device sc_dv; /* generic device info */ 246 struct disk sc_dk; /* generic disk info */ 247 248 struct fd_type *sc_deftype; /* default type descriptor */ 249 struct fd_type *sc_type; /* current type descriptor */ 250 251 struct timeout sc_motoron_to; 252 struct timeout sc_motoroff_to; 253 254 daddr64_t sc_blkno; /* starting block number */ 255 int sc_bcount; /* byte count left */ 256 int sc_skip; /* bytes already transferred */ 257 int sc_nblks; /* number of blocks currently transferring */ 258 int sc_nbytes; /* number of bytes currently transferring */ 259 260 int sc_drive; /* physical unit number */ 261 int sc_flags; 262 #define FD_OPEN 0x01 /* it's open */ 263 #define FD_MOTOR 0x02 /* motor should be on */ 264 #define FD_MOTOR_WAIT 0x04 /* motor coming up */ 265 int sc_cylin; /* where we think the head is */ 266 int sc_opts; /* user-set options */ 267 268 void *sc_sdhook; /* shutdownhook cookie */ 269 270 TAILQ_ENTRY(fd_softc) sc_drivechain; 271 int sc_ops; /* I/O ops since last switch */ 272 struct buf sc_q; /* pending I/O requests */ 273 }; 274 275 /* floppy driver configuration */ 276 int fdmatch(struct device *, void *, void *); 277 void fdattach(struct device *, struct device *, void *); 278 279 struct cfattach fd_ca = { 280 sizeof(struct fd_softc), fdmatch, fdattach 281 }; 282 283 struct cfdriver fd_cd = { 284 NULL, "fd", DV_DISK 285 }; 286 287 int fdgetdisklabel(dev_t, struct fd_softc *, struct disklabel *, int); 288 int fd_get_parms(struct fd_softc *); 289 void fdstrategy(struct buf *); 290 void fdstart(struct fd_softc *); 291 int fdprint(void *, const char *); 292 293 struct fd_type *fd_nvtotype(char *, int, int); 294 void fd_set_motor(struct fdc_softc *fdc); 295 void fd_motor_off(void *arg); 296 void fd_motor_on(void *arg); 297 int fdcresult(struct fdc_softc *fdc); 298 int fdc_wrfifo(struct fdc_softc *fdc, u_char x); 299 void fdcstart(struct fdc_softc *fdc); 300 void fdcstatus(struct fdc_softc *fdc, char *s); 301 void fdc_reset(struct fdc_softc *fdc); 302 int fdc_diskchange(struct fdc_softc *fdc); 303 void fdctimeout(void *arg); 304 void fdcpseudointr(void *arg); 305 int fdchwintr(void *); 306 void fdcswintr(void *); 307 int fdcstate(struct fdc_softc *); 308 void fdcretry(struct fdc_softc *fdc); 309 void fdfinish(struct fd_softc *fd, struct buf *bp); 310 int fdformat(dev_t, struct fd_formb *, struct proc *); 311 void fd_do_eject(struct fd_softc *); 312 static int fdconf(struct fdc_softc *); 313 314 int 315 fdcmatch_sbus(parent, match, aux) 316 struct device *parent; 317 void *match, *aux; 318 { 319 struct sbus_attach_args *sa = aux; 320 321 return (strcmp("SUNW,fdtwo", sa->sa_name) == 0); 322 } 323 324 void 325 fdcattach_sbus(parent, self, aux) 326 struct device *parent, *self; 327 void *aux; 328 { 329 struct fdc_softc *fdc = (void *)self; 330 struct sbus_attach_args *sa = aux; 331 332 if (sa->sa_nintr == 0) { 333 printf(": no interrupt line configured\n"); 334 return; 335 } 336 337 if (auxio_fd_control(0) != 0) { 338 printf(": can't attach before auxio\n"); 339 return; 340 } 341 342 fdc->sc_bustag = sa->sa_bustag; 343 344 if (sbus_bus_map(sa->sa_bustag, 345 sa->sa_slot, sa->sa_offset, sa->sa_size, 346 BUS_SPACE_MAP_LINEAR, 0, &fdc->sc_handle) != 0) { 347 printf(": cannot map control registers\n"); 348 return; 349 } 350 351 if (strcmp(getpropstring(sa->sa_node, "status"), "disabled") == 0) { 352 printf(": no drives attached\n"); 353 return; 354 } 355 356 if (getproplen(sa->sa_node, "manual") >= 0) 357 fdc->sc_flags |= FDC_NOEJECT; 358 359 if (fdcattach(fdc, sa->sa_pri) != 0) 360 bus_space_unmap(sa->sa_bustag, fdc->sc_handle, sa->sa_size); 361 } 362 363 int 364 fdcmatch_ebus(parent, match, aux) 365 struct device *parent; 366 void *match, *aux; 367 { 368 struct ebus_attach_args *ea = aux; 369 370 return (strcmp("fdthree", ea->ea_name) == 0); 371 } 372 373 void 374 fdcattach_ebus(parent, self, aux) 375 struct device *parent, *self; 376 void *aux; 377 { 378 struct fdc_softc *fdc = (void *)self; 379 struct ebus_attach_args *ea = aux; 380 381 if (ea->ea_nintrs == 0) { 382 printf(": no interrupt line configured\n"); 383 return; 384 } 385 386 if (ea->ea_nregs < 3) { 387 printf(": expected 3 registers, only got %d\n", 388 ea->ea_nregs); 389 return; 390 } 391 392 if (ea->ea_nvaddrs > 0) { 393 if (bus_space_map(ea->ea_memtag, ea->ea_vaddrs[0], 0, 394 BUS_SPACE_MAP_PROMADDRESS, &fdc->sc_handle) != 0) { 395 printf(": can't map control registers\n"); 396 return; 397 } 398 fdc->sc_bustag = ea->ea_memtag; 399 } else if (ebus_bus_map(ea->ea_memtag, 0, 400 EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), 401 ea->ea_regs[0].size, 0, 0, &fdc->sc_handle) == 0) { 402 fdc->sc_bustag = ea->ea_memtag; 403 } else if (ebus_bus_map(ea->ea_iotag, 0, 404 EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), 405 ea->ea_regs[0].size, 0, 0, &fdc->sc_handle) == 0) { 406 fdc->sc_bustag = ea->ea_iotag; 407 } else { 408 printf(": can't map control registers\n"); 409 return; 410 } 411 412 if (strcmp(getpropstring(ea->ea_node, "status"), "disabled") == 0) { 413 printf(": no drives attached\n"); 414 return; 415 } 416 417 fdc->sc_flags |= FDC_EBUS; 418 419 if (getproplen(ea->ea_node, "manual") >= 0) 420 fdc->sc_flags |= FDC_NOEJECT; 421 422 /* XXX unmapping if it fails */ 423 fdcattach(fdc, ea->ea_intrs[0]); 424 } 425 426 /* 427 * Arguments passed between fdcattach and fdprobe. 428 */ 429 struct fdc_attach_args { 430 int fa_drive; 431 struct fd_type *fa_deftype; 432 }; 433 434 /* 435 * Print the location of a disk drive (called just before attaching the 436 * the drive). If `fdc' is not NULL, the drive was found but was not 437 * in the system config file; print the drive name as well. 438 * Return QUIET (config_find ignores this if the device was configured) to 439 * avoid printing `fdN not configured' messages. 440 */ 441 int 442 fdprint(aux, fdc) 443 void *aux; 444 const char *fdc; 445 { 446 register struct fdc_attach_args *fa = aux; 447 448 if (!fdc) 449 printf(" drive %d", fa->fa_drive); 450 return (QUIET); 451 } 452 453 /* 454 * Configure several parameters and features on the FDC. 455 * Return 0 on success. 456 */ 457 static int 458 fdconf(fdc) 459 struct fdc_softc *fdc; 460 { 461 int vroom; 462 463 if (fdc_wrfifo(fdc, NE7CMD_DUMPREG) || fdcresult(fdc) != 10) 464 return (-1); 465 466 /* 467 * dumpreg[7] seems to be a motor-off timeout; set it to whatever 468 * the PROM thinks is appropriate. 469 */ 470 if ((vroom = fdc->sc_status[7]) == 0) 471 vroom = 0x64; 472 473 /* Configure controller to use FIFO and Implied Seek */ 474 if (fdc_wrfifo(fdc, NE7CMD_CFG) != 0) 475 return (-1); 476 if (fdc_wrfifo(fdc, vroom) != 0) 477 return (-1); 478 if (fdc_wrfifo(fdc, fdc->sc_cfg) != 0) 479 return (-1); 480 if (fdc_wrfifo(fdc, 0) != 0) /* PRETRK */ 481 return (-1); 482 /* No result phase for the NE7CMD_CFG command */ 483 484 /* Lock configuration across soft resets. */ 485 if (fdc_wrfifo(fdc, NE7CMD_LOCK | CFG_LOCK) != 0 || 486 fdcresult(fdc) != 1) { 487 #ifdef FD_DEBUG 488 printf("fdconf: CFGLOCK failed"); 489 #endif 490 return (-1); 491 } 492 493 return (0); 494 #if 0 495 if (fdc_wrfifo(fdc, NE7CMD_VERSION) == 0 && 496 fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x90) { 497 if (fdc_debug) 498 printf("[version cmd]"); 499 } 500 #endif 501 } 502 503 int 504 fdcattach(fdc, pri) 505 struct fdc_softc *fdc; 506 int pri; 507 { 508 struct fdc_attach_args fa; 509 int drive_attached; 510 511 timeout_set(&fdc->fdctimeout_to, fdctimeout, fdc); 512 timeout_set(&fdc->fdcpseudointr_to, fdcpseudointr, fdc); 513 514 fdc->sc_state = DEVIDLE; 515 fdc->sc_itask = FDC_ITASK_NONE; 516 fdc->sc_istatus = FDC_ISTATUS_NONE; 517 fdc->sc_flags |= FDC_EIS | FDC_NEEDMOTORWAIT; 518 TAILQ_INIT(&fdc->sc_drives); 519 520 /* 521 * Configure controller; enable FIFO, Implied seek, no POLL mode?. 522 * Note: CFG_EFIFO is active-low, initial threshold value: 8 523 */ 524 fdc->sc_cfg = CFG_EIS|/*CFG_EFIFO|*/CFG_POLL|(8 & CFG_THRHLD_MASK); 525 if (fdconf(fdc) != 0) { 526 printf("\n%s: no drives attached\n", fdc->sc_dev.dv_xname); 527 return (-1); 528 } 529 530 if (bus_intr_establish(fdc->sc_bustag, pri, IPL_BIO, 531 0, fdchwintr, fdc, fdc->sc_dev.dv_xname) == NULL) { 532 printf("\n%s: cannot register interrupt handler\n", 533 fdc->sc_dev.dv_xname); 534 return (-1); 535 } 536 537 fdc->sc_sicookie = softintr_establish(IPL_BIO, fdcswintr, fdc); 538 if (fdc->sc_sicookie == NULL) { 539 printf("\n%s: cannot register soft interrupt handler\n", 540 fdc->sc_dev.dv_xname); 541 return (-1); 542 } 543 544 printf(" softpri %d", PIL_FDSOFT); 545 if (fdc->sc_flags & FDC_NOEJECT) 546 printf(": manual eject"); 547 printf("\n"); 548 549 /* physical limit: four drives per controller. */ 550 drive_attached = 0; 551 for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) { 552 fa.fa_deftype = NULL; /* unknown */ 553 fa.fa_deftype = &fd_types[0]; /* XXX */ 554 if (config_found(&fdc->sc_dev, (void *)&fa, fdprint) != NULL) 555 drive_attached = 1; 556 } 557 558 if (drive_attached == 0) { 559 /* XXX - dis-establish interrupts here */ 560 /* return (-1); */ 561 } 562 563 return (0); 564 } 565 566 int 567 fdmatch(parent, match, aux) 568 struct device *parent; 569 void *match; 570 void *aux; 571 { 572 struct fdc_softc *fdc = (void *)parent; 573 bus_space_tag_t t = fdc->sc_bustag; 574 bus_space_handle_t h = fdc->sc_handle; 575 struct fdc_attach_args *fa = aux; 576 int drive = fa->fa_drive; 577 int n, ok; 578 579 if (drive > 0) 580 /* XXX - for now, punt on more than one drive */ 581 return (0); 582 583 /* select drive and turn on motor */ 584 bus_space_write_1(t, h, FDREG77_DOR, 585 drive | FDO_FRST | FDO_MOEN(drive)); 586 /* wait for motor to spin up */ 587 delay(250000); 588 589 fdc->sc_nstat = 0; 590 fdc_wrfifo(fdc, NE7CMD_RECAL); 591 fdc_wrfifo(fdc, drive); 592 593 /* Wait for recalibration to complete */ 594 for (n = 0; n < 10000; n++) { 595 u_int8_t v; 596 597 delay(1000); 598 v = bus_space_read_1(t, h, FDREG77_MSR); 599 if ((v & (NE7_RQM|NE7_DIO|NE7_CB)) == NE7_RQM) { 600 /* wait a bit longer till device *really* is ready */ 601 delay(100000); 602 if (fdc_wrfifo(fdc, NE7CMD_SENSEI)) 603 break; 604 if (fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x80) 605 /* 606 * Got `invalid command'; we interpret it 607 * to mean that the re-calibrate hasn't in 608 * fact finished yet 609 */ 610 continue; 611 break; 612 } 613 } 614 n = fdc->sc_nstat; 615 #ifdef FD_DEBUG 616 if (fdc_debug) { 617 int i; 618 printf("fdprobe: %d stati:", n); 619 for (i = 0; i < n; i++) 620 printf(" 0x%x", fdc->sc_status[i]); 621 printf("\n"); 622 } 623 #endif 624 ok = (n == 2 && (fdc->sc_status[0] & 0xf8) == 0x20) ? 1 : 0; 625 626 /* deselect drive and turn motor off */ 627 bus_space_write_1(t, h, FDREG77_DOR, FDO_FRST | FDO_DS); 628 629 return (ok); 630 } 631 632 /* 633 * Controller is working, and drive responded. Attach it. 634 */ 635 void 636 fdattach(parent, self, aux) 637 struct device *parent, *self; 638 void *aux; 639 { 640 struct fdc_softc *fdc = (void *)parent; 641 struct fd_softc *fd = (void *)self; 642 struct fdc_attach_args *fa = aux; 643 struct fd_type *type = fa->fa_deftype; 644 int drive = fa->fa_drive; 645 646 timeout_set(&fd->sc_motoron_to, fd_motor_on, fd); 647 timeout_set(&fd->sc_motoroff_to, fd_motor_off, fd); 648 649 /* XXX Allow `flags' to override device type? */ 650 651 if (type) 652 printf(": %s %d cyl, %d head, %d sec\n", type->name, 653 type->tracks, type->heads, type->sectrac); 654 else 655 printf(": density unknown\n"); 656 657 fd->sc_cylin = -1; 658 fd->sc_drive = drive; 659 fd->sc_deftype = type; 660 fdc->sc_fd[drive] = fd; 661 662 fdc_wrfifo(fdc, NE7CMD_SPECIFY); 663 fdc_wrfifo(fdc, type->steprate); 664 /* XXX head load time == 6ms */ 665 fdc_wrfifo(fdc, 6 | NE7_SPECIFY_NODMA); 666 667 /* 668 * Initialize and attach the disk structure. 669 */ 670 fd->sc_dk.dk_flags = DKF_NOLABELREAD; 671 fd->sc_dk.dk_name = fd->sc_dv.dv_xname; 672 disk_attach(&fd->sc_dv, &fd->sc_dk); 673 674 /* Make sure the drive motor gets turned off at shutdown time. */ 675 fd->sc_sdhook = shutdownhook_establish(fd_motor_off, fd); 676 } 677 678 __inline struct fd_type * 679 fd_dev_to_type(fd, dev) 680 struct fd_softc *fd; 681 dev_t dev; 682 { 683 int type = FDTYPE(dev); 684 685 if (type > (sizeof(fd_types) / sizeof(fd_types[0]))) 686 return (NULL); 687 return (type ? &fd_types[type - 1] : fd->sc_deftype); 688 } 689 690 void 691 fdstrategy(bp) 692 register struct buf *bp; /* IO operation to perform */ 693 { 694 struct fd_softc *fd; 695 int unit = FDUNIT(bp->b_dev); 696 int sz; 697 int s; 698 699 /* Valid unit, controller, and request? */ 700 if (unit >= fd_cd.cd_ndevs || 701 (fd = fd_cd.cd_devs[unit]) == 0 || 702 bp->b_blkno < 0 || 703 (((bp->b_bcount % FD_BSIZE(fd)) != 0 || 704 (bp->b_blkno * DEV_BSIZE) % FD_BSIZE(fd) != 0) && 705 (bp->b_flags & B_FORMAT) == 0)) { 706 bp->b_error = EINVAL; 707 goto bad; 708 } 709 710 /* If it's a null transfer, return immediately. */ 711 if (bp->b_bcount == 0) 712 goto done; 713 714 sz = howmany(bp->b_bcount, DEV_BSIZE); 715 716 if (bp->b_blkno + sz > (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd)) { 717 sz = (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd) 718 - bp->b_blkno; 719 if (sz == 0) { 720 /* If exactly at end of disk, return EOF. */ 721 bp->b_resid = bp->b_bcount; 722 goto done; 723 } 724 if (sz < 0) { 725 /* If past end of disk, return EINVAL. */ 726 bp->b_error = EINVAL; 727 goto bad; 728 } 729 /* Otherwise, truncate request. */ 730 bp->b_bcount = sz << DEV_BSHIFT; 731 } 732 733 bp->b_cylinder = (bp->b_blkno * DEV_BSIZE) / 734 (FD_BSIZE(fd) * fd->sc_type->seccyl); 735 736 #ifdef FD_DEBUG 737 if (fdc_debug > 1) 738 printf("fdstrategy: b_blkno %lld b_bcount %d blkno %lld cylin %d\n", 739 bp->b_blkno, bp->b_bcount, 740 fd->sc_blkno, bp->b_cylinder); 741 #endif 742 743 /* Queue transfer on drive, activate drive and controller if idle. */ 744 s = splbio(); 745 disksort(&fd->sc_q, bp); 746 timeout_del(&fd->sc_motoroff_to); /* a good idea */ 747 if (!fd->sc_q.b_active) 748 fdstart(fd); 749 #ifdef DIAGNOSTIC 750 else { 751 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 752 if (fdc->sc_state == DEVIDLE) { 753 printf("fdstrategy: controller inactive\n"); 754 fdcstart(fdc); 755 } 756 } 757 #endif 758 splx(s); 759 return; 760 761 bad: 762 bp->b_flags |= B_ERROR; 763 done: 764 /* Toss transfer; we're done early. */ 765 s = splbio(); 766 biodone(bp); 767 splx(s); 768 } 769 770 void 771 fdstart(fd) 772 struct fd_softc *fd; 773 { 774 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 775 int active = !TAILQ_EMPTY(&fdc->sc_drives); 776 777 /* Link into controller queue. */ 778 fd->sc_q.b_active = 1; 779 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 780 781 /* If controller not already active, start it. */ 782 if (!active) 783 fdcstart(fdc); 784 } 785 786 void 787 fdfinish(fd, bp) 788 struct fd_softc *fd; 789 struct buf *bp; 790 { 791 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 792 793 /* 794 * Move this drive to the end of the queue to give others a `fair' 795 * chance. We only force a switch if N operations are completed while 796 * another drive is waiting to be serviced, since there is a long motor 797 * startup delay whenever we switch. 798 */ 799 if (TAILQ_NEXT(fd, sc_drivechain) != NULL && ++fd->sc_ops >= 8) { 800 fd->sc_ops = 0; 801 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 802 if (bp->b_actf) { 803 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 804 } else 805 fd->sc_q.b_active = 0; 806 } 807 bp->b_resid = fd->sc_bcount; 808 fd->sc_skip = 0; 809 fd->sc_q.b_actf = bp->b_actf; 810 811 biodone(bp); 812 /* turn off motor 5s from now */ 813 timeout_add_sec(&fd->sc_motoroff_to, 5); 814 fdc->sc_state = DEVIDLE; 815 } 816 817 void 818 fdc_reset(fdc) 819 struct fdc_softc *fdc; 820 { 821 bus_space_tag_t t = fdc->sc_bustag; 822 bus_space_handle_t h = fdc->sc_handle; 823 824 bus_space_write_1(t, h, FDREG77_DOR, FDO_FDMAEN | FDO_MOEN(0)); 825 826 bus_space_write_1(t, h, FDREG77_DRS, DRS_RESET); 827 delay(10); 828 bus_space_write_1(t, h, FDREG77_DRS, 0); 829 830 bus_space_write_1(t, h, FDREG77_DOR, 831 FDO_FRST | FDO_FDMAEN | FDO_DS); 832 #ifdef FD_DEBUG 833 if (fdc_debug) 834 printf("fdc reset\n"); 835 #endif 836 } 837 838 void 839 fd_set_motor(fdc) 840 struct fdc_softc *fdc; 841 { 842 struct fd_softc *fd; 843 u_char status; 844 int n; 845 846 status = FDO_FRST | FDO_FDMAEN; 847 if ((fd = TAILQ_FIRST(&fdc->sc_drives)) != NULL) 848 status |= fd->sc_drive; 849 850 for (n = 0; n < 4; n++) 851 if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) 852 status |= FDO_MOEN(n); 853 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 854 FDREG77_DOR, status); 855 } 856 857 void 858 fd_motor_off(arg) 859 void *arg; 860 { 861 struct fd_softc *fd = arg; 862 int s; 863 864 s = splbio(); 865 fd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 866 fd_set_motor((struct fdc_softc *)fd->sc_dv.dv_parent); 867 splx(s); 868 } 869 870 void 871 fd_motor_on(arg) 872 void *arg; 873 { 874 struct fd_softc *fd = arg; 875 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 876 int s; 877 878 s = splbio(); 879 fd->sc_flags &= ~FD_MOTOR_WAIT; 880 if (fd == TAILQ_FIRST(&fdc->sc_drives) && fdc->sc_state == MOTORWAIT) 881 (void) fdcstate(fdc); 882 splx(s); 883 } 884 885 /* 886 * Get status bytes off the FDC after a command has finished 887 * Returns the number of status bytes read; -1 on error. 888 * The return value is also stored in `sc_nstat'. 889 */ 890 int 891 fdcresult(fdc) 892 struct fdc_softc *fdc; 893 { 894 bus_space_tag_t t = fdc->sc_bustag; 895 bus_space_handle_t h = fdc->sc_handle; 896 int j, n = 0; 897 898 for (j = 100000; j; j--) { 899 u_int8_t v = bus_space_read_1(t, h, FDREG77_MSR); 900 v &= (NE7_DIO | NE7_RQM | NE7_CB); 901 if (v == NE7_RQM) 902 return (fdc->sc_nstat = n); 903 if (v == (NE7_DIO | NE7_RQM | NE7_CB)) { 904 if (n >= sizeof(fdc->sc_status)) { 905 log(LOG_ERR, "fdcresult: overrun\n"); 906 return (-1); 907 } 908 fdc->sc_status[n++] = 909 bus_space_read_1(t, h, FDREG77_FIFO); 910 } else 911 delay(1); 912 } 913 914 log(LOG_ERR, "fdcresult: timeout\n"); 915 return (fdc->sc_nstat = -1); 916 } 917 918 /* 919 * Write a command byte to the FDC. 920 * Returns 0 on success; -1 on failure (i.e. timeout) 921 */ 922 int 923 fdc_wrfifo(fdc, x) 924 struct fdc_softc *fdc; 925 u_int8_t x; 926 { 927 bus_space_tag_t t = fdc->sc_bustag; 928 bus_space_handle_t h = fdc->sc_handle; 929 int i; 930 931 for (i = 100000; i-- != 0;) { 932 u_int8_t v = bus_space_read_1(t, h, FDREG77_MSR); 933 if ((v & (NE7_DIO|NE7_RQM)) == NE7_RQM) { 934 /* The chip is ready */ 935 bus_space_write_1(t, h, FDREG77_FIFO, x); 936 return (0); 937 } 938 delay(1); 939 } 940 return (-1); 941 } 942 943 int 944 fdc_diskchange(fdc) 945 struct fdc_softc *fdc; 946 { 947 bus_space_tag_t t = fdc->sc_bustag; 948 bus_space_handle_t h = fdc->sc_handle; 949 950 u_int8_t v = bus_space_read_1(t, h, FDREG77_DIR); 951 return ((v & FDI_DCHG) != 0); 952 } 953 954 int 955 fdopen(dev, flags, fmt, p) 956 dev_t dev; 957 int flags, fmt; 958 struct proc *p; 959 { 960 int unit, pmask; 961 struct fd_softc *fd; 962 struct fd_type *type; 963 964 unit = FDUNIT(dev); 965 if (unit >= fd_cd.cd_ndevs) 966 return (ENXIO); 967 fd = fd_cd.cd_devs[unit]; 968 if (fd == NULL) 969 return (ENXIO); 970 type = fd_dev_to_type(fd, dev); 971 if (type == NULL) 972 return (ENXIO); 973 974 if ((fd->sc_flags & FD_OPEN) != 0 && 975 fd->sc_type != type) 976 return (EBUSY); 977 978 fd->sc_type = type; 979 fd->sc_cylin = -1; 980 fd->sc_flags |= FD_OPEN; 981 982 /* 983 * Only update the disklabel if we're not open anywhere else. 984 */ 985 if (fd->sc_dk.dk_openmask == 0) 986 fdgetdisklabel(dev, fd, fd->sc_dk.dk_label, 0); 987 988 pmask = (1 << DISKPART(dev)); 989 990 switch (fmt) { 991 case S_IFCHR: 992 fd->sc_dk.dk_copenmask |= pmask; 993 break; 994 995 case S_IFBLK: 996 fd->sc_dk.dk_bopenmask |= pmask; 997 break; 998 } 999 fd->sc_dk.dk_openmask = 1000 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1001 1002 return (0); 1003 } 1004 1005 int 1006 fdclose(dev, flags, fmt, p) 1007 dev_t dev; 1008 int flags, fmt; 1009 struct proc *p; 1010 { 1011 struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; 1012 int pmask = (1 << DISKPART(dev)); 1013 1014 fd->sc_flags &= ~FD_OPEN; 1015 fd->sc_opts &= ~(FDOPT_NORETRY|FDOPT_SILENT); 1016 1017 switch (fmt) { 1018 case S_IFCHR: 1019 fd->sc_dk.dk_copenmask &= ~pmask; 1020 break; 1021 1022 case S_IFBLK: 1023 fd->sc_dk.dk_bopenmask &= ~pmask; 1024 break; 1025 } 1026 fd->sc_dk.dk_openmask = 1027 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1028 1029 return (0); 1030 } 1031 1032 int 1033 fdread(dev, uio, flag) 1034 dev_t dev; 1035 struct uio *uio; 1036 int flag; 1037 { 1038 1039 return (physio(fdstrategy, dev, B_READ, minphys, uio)); 1040 } 1041 1042 int 1043 fdwrite(dev, uio, flag) 1044 dev_t dev; 1045 struct uio *uio; 1046 int flag; 1047 { 1048 1049 return (physio(fdstrategy, dev, B_WRITE, minphys, uio)); 1050 } 1051 1052 void 1053 fdcstart(fdc) 1054 struct fdc_softc *fdc; 1055 { 1056 1057 #ifdef DIAGNOSTIC 1058 /* only got here if controller's drive queue was inactive; should 1059 be in idle state */ 1060 if (fdc->sc_state != DEVIDLE) { 1061 printf("fdcstart: not idle\n"); 1062 return; 1063 } 1064 #endif 1065 (void) fdcstate(fdc); 1066 } 1067 1068 void 1069 fdcstatus(fdc, s) 1070 struct fdc_softc *fdc; 1071 char *s; 1072 { 1073 struct fd_softc *fd = TAILQ_FIRST(&fdc->sc_drives); 1074 int n; 1075 1076 /* Just print last status */ 1077 n = fdc->sc_nstat; 1078 1079 #if 0 1080 if (n == 0) { 1081 fdc_wrfifo(fdc, NE7CMD_SENSEI); 1082 (void) fdcresult(fdc); 1083 n = 2; 1084 } 1085 #endif 1086 1087 printf("%s: %s: state %d", 1088 fd ? fd->sc_dv.dv_xname : "fdc", s, fdc->sc_state); 1089 1090 switch (n) { 1091 case 0: 1092 printf("\n"); 1093 break; 1094 case 2: 1095 printf(" (st0 %b cyl %d)\n", 1096 fdc->sc_status[0], NE7_ST0BITS, 1097 fdc->sc_status[1]); 1098 break; 1099 case 7: 1100 printf(" (st0 %b st1 %b st2 %b cyl %d head %d sec %d)\n", 1101 fdc->sc_status[0], NE7_ST0BITS, 1102 fdc->sc_status[1], NE7_ST1BITS, 1103 fdc->sc_status[2], NE7_ST2BITS, 1104 fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); 1105 break; 1106 #ifdef DIAGNOSTIC 1107 default: 1108 printf(" fdcstatus: weird size: %d\n", n); 1109 break; 1110 #endif 1111 } 1112 } 1113 1114 void 1115 fdctimeout(arg) 1116 void *arg; 1117 { 1118 struct fdc_softc *fdc = arg; 1119 struct fd_softc *fd; 1120 int s; 1121 1122 s = splbio(); 1123 fd = TAILQ_FIRST(&fdc->sc_drives); 1124 if (fd == NULL) { 1125 printf("%s: timeout but no I/O pending: state %d, istatus=%d\n", 1126 fdc->sc_dev.dv_xname, fdc->sc_state, fdc->sc_istatus); 1127 fdc->sc_state = DEVIDLE; 1128 goto out; 1129 } 1130 1131 if (fd->sc_q.b_actf) 1132 fdc->sc_state++; 1133 else 1134 fdc->sc_state = DEVIDLE; 1135 1136 (void) fdcstate(fdc); 1137 out: 1138 splx(s); 1139 1140 } 1141 1142 void 1143 fdcpseudointr(arg) 1144 void *arg; 1145 { 1146 struct fdc_softc *fdc = arg; 1147 int s; 1148 1149 /* Just ensure it has the right spl. */ 1150 s = splbio(); 1151 (void) fdcstate(fdc); 1152 splx(s); 1153 } 1154 1155 1156 /* 1157 * Hardware interrupt entry point. 1158 * Unfortunately, we have no reliable way to determine that the 1159 * interrupt really came from the floppy controller; just hope 1160 * that the other devices that share this interrupt can do better.. 1161 */ 1162 int 1163 fdchwintr(arg) 1164 void *arg; 1165 { 1166 struct fdc_softc *fdc = arg; 1167 bus_space_tag_t t = fdc->sc_bustag; 1168 bus_space_handle_t h = fdc->sc_handle; 1169 1170 switch (fdc->sc_itask) { 1171 case FDC_ITASK_NONE: 1172 return (0); 1173 case FDC_ITASK_SENSEI: 1174 if (fdc_wrfifo(fdc, NE7CMD_SENSEI) != 0 || fdcresult(fdc) == -1) 1175 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1176 else 1177 fdc->sc_istatus = FDC_ISTATUS_DONE; 1178 softintr_schedule(fdc->sc_sicookie); 1179 return (1); 1180 case FDC_ITASK_RESULT: 1181 if (fdcresult(fdc) == -1) 1182 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1183 else 1184 fdc->sc_istatus = FDC_ISTATUS_DONE; 1185 softintr_schedule(fdc->sc_sicookie); 1186 return (1); 1187 case FDC_ITASK_DMA: 1188 /* Proceed with pseudo-DMA below */ 1189 break; 1190 default: 1191 printf("fdc: stray hard interrupt: itask=%d\n", fdc->sc_itask); 1192 fdc->sc_istatus = FDC_ISTATUS_SPURIOUS; 1193 softintr_schedule(fdc->sc_sicookie); 1194 return (1); 1195 } 1196 1197 /* 1198 * Pseudo DMA in progress 1199 */ 1200 for (;;) { 1201 u_int8_t msr; 1202 1203 msr = bus_space_read_1(t, h, FDREG77_MSR); 1204 1205 if ((msr & NE7_RQM) == 0) 1206 /* That's all this round */ 1207 break; 1208 1209 if ((msr & NE7_NDM) == 0) { 1210 fdcresult(fdc); 1211 fdc->sc_istatus = FDC_ISTATUS_DONE; 1212 softintr_schedule(fdc->sc_sicookie); 1213 #ifdef FD_DEBUG 1214 if (fdc_debug > 1) 1215 printf("fdc: overrun: msr = %x, tc = %d\n", 1216 msr, fdc->sc_tc); 1217 #endif 1218 break; 1219 } 1220 1221 /* Another byte can be transferred */ 1222 if ((msr & NE7_DIO) != 0) 1223 *fdc->sc_data = 1224 bus_space_read_1(t, h, FDREG77_FIFO); 1225 else 1226 bus_space_write_1(t, h, FDREG77_FIFO, 1227 *fdc->sc_data); 1228 1229 fdc->sc_data++; 1230 if (--fdc->sc_tc == 0) { 1231 fdc->sc_istatus = FDC_ISTATUS_DONE; 1232 FTC_FLIP; 1233 fdcresult(fdc); 1234 softintr_schedule(fdc->sc_sicookie); 1235 break; 1236 } 1237 } 1238 return (1); 1239 } 1240 1241 void 1242 fdcswintr(arg) 1243 void *arg; 1244 { 1245 struct fdc_softc *fdc = arg; 1246 int s; 1247 1248 if (fdc->sc_istatus == FDC_ISTATUS_NONE) 1249 /* This (software) interrupt is not for us */ 1250 return; 1251 1252 switch (fdc->sc_istatus) { 1253 case FDC_ISTATUS_ERROR: 1254 printf("fdc: ierror status: state %d\n", fdc->sc_state); 1255 break; 1256 case FDC_ISTATUS_SPURIOUS: 1257 printf("fdc: spurious interrupt: state %d\n", fdc->sc_state); 1258 break; 1259 } 1260 1261 s = splbio(); 1262 fdcstate(fdc); 1263 splx(s); 1264 return; 1265 } 1266 1267 int 1268 fdcstate(fdc) 1269 struct fdc_softc *fdc; 1270 { 1271 #define st0 fdc->sc_status[0] 1272 #define st1 fdc->sc_status[1] 1273 #define cyl fdc->sc_status[1] 1274 #define FDC_WRFIFO(fdc, c) \ 1275 do { \ 1276 if (fdc_wrfifo(fdc, (c))) { \ 1277 goto xxx; \ 1278 } \ 1279 } while(0) 1280 1281 struct fd_softc *fd; 1282 struct buf *bp; 1283 int read, head, sec, nblks; 1284 struct fd_type *type; 1285 struct fd_formb *finfo = NULL; 1286 1287 if (fdc->sc_istatus == FDC_ISTATUS_ERROR) { 1288 /* Prevent loop if the reset sequence produces errors */ 1289 if (fdc->sc_state != RESETCOMPLETE && 1290 fdc->sc_state != RECALWAIT && 1291 fdc->sc_state != RECALCOMPLETE) 1292 fdc->sc_state = DORESET; 1293 } 1294 1295 /* Clear I task/status field */ 1296 fdc->sc_istatus = FDC_ISTATUS_NONE; 1297 fdc->sc_itask = FDC_ITASK_NONE; 1298 1299 loop: 1300 /* Is there a drive for the controller to do a transfer with? */ 1301 fd = TAILQ_FIRST(&fdc->sc_drives); 1302 if (fd == NULL) { 1303 fdc->sc_state = DEVIDLE; 1304 return (0); 1305 } 1306 1307 /* Is there a transfer to this drive? If not, deactivate drive. */ 1308 bp = fd->sc_q.b_actf; 1309 if (bp == NULL) { 1310 fd->sc_ops = 0; 1311 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1312 fd->sc_q.b_active = 0; 1313 goto loop; 1314 } 1315 1316 if (bp->b_flags & B_FORMAT) 1317 finfo = (struct fd_formb *)bp->b_data; 1318 1319 switch (fdc->sc_state) { 1320 case DEVIDLE: 1321 fdc->sc_errors = 0; 1322 fd->sc_skip = 0; 1323 fd->sc_bcount = bp->b_bcount; 1324 fd->sc_blkno = (bp->b_blkno * DEV_BSIZE) / FD_BSIZE(fd); 1325 timeout_del(&fd->sc_motoroff_to); 1326 if ((fd->sc_flags & FD_MOTOR_WAIT) != 0) { 1327 fdc->sc_state = MOTORWAIT; 1328 return (1); 1329 } 1330 if ((fd->sc_flags & FD_MOTOR) == 0) { 1331 /* Turn on the motor, being careful about pairing. */ 1332 struct fd_softc *ofd = fdc->sc_fd[fd->sc_drive ^ 1]; 1333 if (ofd && ofd->sc_flags & FD_MOTOR) { 1334 timeout_del(&ofd->sc_motoroff_to); 1335 ofd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1336 } 1337 fd->sc_flags |= FD_MOTOR | FD_MOTOR_WAIT; 1338 fd_set_motor(fdc); 1339 fdc->sc_state = MOTORWAIT; 1340 if ((fdc->sc_flags & FDC_NEEDMOTORWAIT) != 0) { /*XXX*/ 1341 /* Allow .25s for motor to stabilize. */ 1342 timeout_add_msec(&fd->sc_motoron_to, 250); 1343 } else { 1344 fd->sc_flags &= ~FD_MOTOR_WAIT; 1345 goto loop; 1346 } 1347 return (1); 1348 } 1349 /* Make sure the right drive is selected. */ 1350 fd_set_motor(fdc); 1351 1352 if (fdc_diskchange(fdc)) 1353 goto dodskchg; 1354 1355 /*FALLTHROUGH*/ 1356 case DOSEEK: 1357 doseek: 1358 if ((fdc->sc_flags & FDC_EIS) && 1359 (bp->b_flags & B_FORMAT) == 0) { 1360 fd->sc_cylin = bp->b_cylinder; 1361 /* We use implied seek */ 1362 goto doio; 1363 } 1364 1365 if (fd->sc_cylin == bp->b_cylinder) 1366 goto doio; 1367 1368 fd->sc_cylin = -1; 1369 fdc->sc_state = SEEKWAIT; 1370 fdc->sc_nstat = 0; 1371 1372 fd->sc_dk.dk_seek++; 1373 1374 disk_busy(&fd->sc_dk); 1375 timeout_add_sec(&fdc->fdctimeout_to, 4); 1376 1377 /* specify command */ 1378 FDC_WRFIFO(fdc, NE7CMD_SPECIFY); 1379 FDC_WRFIFO(fdc, fd->sc_type->steprate); 1380 /* XXX head load time == 6ms */ 1381 FDC_WRFIFO(fdc, 6 | NE7_SPECIFY_NODMA); 1382 1383 fdc->sc_itask = FDC_ITASK_SENSEI; 1384 /* seek function */ 1385 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1386 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1387 FDC_WRFIFO(fdc, bp->b_cylinder * fd->sc_type->step); 1388 return (1); 1389 1390 case DODSKCHG: 1391 dodskchg: 1392 /* 1393 * Disk change: force a seek operation by going to cyl 1 1394 * followed by a recalibrate. 1395 */ 1396 disk_busy(&fd->sc_dk); 1397 timeout_add_sec(&fdc->fdctimeout_to, 4); 1398 fd->sc_cylin = -1; 1399 fdc->sc_nstat = 0; 1400 fdc->sc_state = DSKCHGWAIT; 1401 1402 fdc->sc_itask = FDC_ITASK_SENSEI; 1403 /* seek function */ 1404 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1405 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1406 FDC_WRFIFO(fdc, 1 * fd->sc_type->step); 1407 return (1); 1408 1409 case DSKCHGWAIT: 1410 timeout_del(&fdc->fdctimeout_to); 1411 disk_unbusy(&fd->sc_dk, 0, 0); 1412 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1413 cyl != 1 * fd->sc_type->step) { 1414 fdcstatus(fdc, "dskchg seek failed"); 1415 fdc->sc_state = DORESET; 1416 } else 1417 fdc->sc_state = DORECAL; 1418 1419 if (fdc_diskchange(fdc)) { 1420 printf("%s: cannot clear disk change status\n", 1421 fdc->sc_dev.dv_xname); 1422 fdc->sc_state = DORESET; 1423 } 1424 goto loop; 1425 1426 case DOIO: 1427 doio: 1428 if (finfo != NULL) 1429 fd->sc_skip = (char *)&(finfo->fd_formb_cylno(0)) - 1430 (char *)finfo; 1431 type = fd->sc_type; 1432 sec = fd->sc_blkno % type->seccyl; 1433 nblks = type->seccyl - sec; 1434 nblks = min(nblks, fd->sc_bcount / FD_BSIZE(fd)); 1435 nblks = min(nblks, FDC_MAXIOSIZE / FD_BSIZE(fd)); 1436 fd->sc_nblks = nblks; 1437 fd->sc_nbytes = finfo ? bp->b_bcount : nblks * FD_BSIZE(fd); 1438 head = sec / type->sectrac; 1439 sec -= head * type->sectrac; 1440 #ifdef DIAGNOSTIC 1441 { 1442 daddr64_t block; 1443 1444 block = (fd->sc_cylin * type->heads + head) * 1445 type->sectrac + sec; 1446 if (block != fd->sc_blkno) { 1447 printf("fdcintr: block %lld != blkno %d\n", 1448 block, (int)fd->sc_blkno); 1449 #if defined(FD_DEBUG) && defined(DDB) 1450 Debugger(); 1451 #endif 1452 } 1453 } 1454 #endif 1455 read = bp->b_flags & B_READ; 1456 1457 /* Setup for pseudo DMA */ 1458 fdc->sc_data = bp->b_data + fd->sc_skip; 1459 fdc->sc_tc = fd->sc_nbytes; 1460 1461 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1462 FDREG77_DRS, type->rate); 1463 #ifdef FD_DEBUG 1464 if (fdc_debug > 1) 1465 printf("fdcstate: doio: %s drive %d " 1466 "track %d head %d sec %d nblks %d\n", 1467 finfo ? "format" : 1468 (read ? "read" : "write"), 1469 fd->sc_drive, fd->sc_cylin, head, sec, nblks); 1470 #endif 1471 fdc->sc_state = IOCOMPLETE; 1472 fdc->sc_itask = FDC_ITASK_DMA; 1473 fdc->sc_nstat = 0; 1474 1475 disk_busy(&fd->sc_dk); 1476 1477 /* allow 3 seconds for operation */ 1478 timeout_add_sec(&fdc->fdctimeout_to, 3); 1479 1480 if (finfo != NULL) { 1481 /* formatting */ 1482 FDC_WRFIFO(fdc, NE7CMD_FORMAT); 1483 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1484 FDC_WRFIFO(fdc, finfo->fd_formb_secshift); 1485 FDC_WRFIFO(fdc, finfo->fd_formb_nsecs); 1486 FDC_WRFIFO(fdc, finfo->fd_formb_gaplen); 1487 FDC_WRFIFO(fdc, finfo->fd_formb_fillbyte); 1488 } else { 1489 if (read) 1490 FDC_WRFIFO(fdc, NE7CMD_READ); 1491 else 1492 FDC_WRFIFO(fdc, NE7CMD_WRITE); 1493 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1494 FDC_WRFIFO(fdc, fd->sc_cylin); /*track*/ 1495 FDC_WRFIFO(fdc, head); 1496 FDC_WRFIFO(fdc, sec + 1); /*sector+1*/ 1497 FDC_WRFIFO(fdc, type->secsize); /*sector size*/ 1498 FDC_WRFIFO(fdc, type->sectrac); /*secs/track*/ 1499 FDC_WRFIFO(fdc, type->gap1); /*gap1 size*/ 1500 FDC_WRFIFO(fdc, type->datalen); /*data length*/ 1501 } 1502 1503 return (1); /* will return later */ 1504 1505 case SEEKWAIT: 1506 timeout_del(&fdc->fdctimeout_to); 1507 fdc->sc_state = SEEKCOMPLETE; 1508 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1509 /* allow 1/50 second for heads to settle */ 1510 timeout_add_msec(&fdc->fdcpseudointr_to, 20); 1511 return (1); /* will return later */ 1512 } 1513 /*FALLTHROUGH*/ 1514 case SEEKCOMPLETE: 1515 /* no data on seek */ 1516 disk_unbusy(&fd->sc_dk, 0, 0); 1517 1518 /* Make sure seek really happened. */ 1519 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1520 cyl != bp->b_cylinder * fd->sc_type->step) { 1521 #ifdef FD_DEBUG 1522 if (fdc_debug) 1523 fdcstatus(fdc, "seek failed"); 1524 #endif 1525 fdcretry(fdc); 1526 goto loop; 1527 } 1528 fd->sc_cylin = bp->b_cylinder; 1529 goto doio; 1530 1531 case IOTIMEDOUT: 1532 /* 1533 * Try to abort the I/O operation without resetting 1534 * the chip first. Poke TC and arrange to pick up 1535 * the timed out I/O command's status. 1536 */ 1537 fdc->sc_itask = FDC_ITASK_RESULT; 1538 fdc->sc_state = IOCLEANUPWAIT; 1539 fdc->sc_nstat = 0; 1540 /* 1/10 second should be enough */ 1541 timeout_add_msec(&fdc->fdctimeout_to, 100); 1542 return (1); 1543 1544 case IOCLEANUPTIMEDOUT: 1545 case SEEKTIMEDOUT: 1546 case RECALTIMEDOUT: 1547 case RESETTIMEDOUT: 1548 case DSKCHGTIMEDOUT: 1549 fdcstatus(fdc, "timeout"); 1550 1551 /* All other timeouts always roll through to a chip reset */ 1552 fdcretry(fdc); 1553 1554 /* Force reset, no matter what fdcretry() says */ 1555 fdc->sc_state = DORESET; 1556 goto loop; 1557 1558 case IOCLEANUPWAIT: /* IO FAILED, cleanup succeeded */ 1559 timeout_del(&fdc->fdctimeout_to); 1560 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1561 (bp->b_flags & B_READ)); 1562 fdcretry(fdc); 1563 goto loop; 1564 1565 case IOCOMPLETE: /* IO DONE, post-analyze */ 1566 timeout_del(&fdc->fdctimeout_to); 1567 1568 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1569 (bp->b_flags & B_READ)); 1570 1571 if (fdc->sc_nstat != 7 || st1 != 0 || 1572 ((st0 & 0xf8) != 0 && 1573 ((st0 & 0xf8) != 0x20 || (fdc->sc_cfg & CFG_EIS) == 0))) { 1574 #ifdef FD_DEBUG 1575 if (fdc_debug) { 1576 fdcstatus(fdc, 1577 bp->b_flags & B_READ 1578 ? "read failed" : "write failed"); 1579 printf("blkno %lld nblks %d nstat %d tc %d\n", 1580 fd->sc_blkno, fd->sc_nblks, 1581 fdc->sc_nstat, fdc->sc_tc); 1582 } 1583 #endif 1584 if (fdc->sc_nstat == 7 && 1585 (st1 & ST1_OVERRUN) == ST1_OVERRUN) { 1586 1587 /* 1588 * Silently retry overruns if no other 1589 * error bit is set. Adjust threshold. 1590 */ 1591 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1592 if (thr < 15) { 1593 thr++; 1594 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1595 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1596 #ifdef FD_DEBUG 1597 if (fdc_debug) 1598 printf("fdc: %d -> threshold\n", thr); 1599 #endif 1600 fdconf(fdc); 1601 fdc->sc_overruns = 0; 1602 } 1603 if (++fdc->sc_overruns < 3) { 1604 fdc->sc_state = DOIO; 1605 goto loop; 1606 } 1607 } 1608 fdcretry(fdc); 1609 goto loop; 1610 } 1611 if (fdc->sc_errors) { 1612 diskerr(bp, "fd", "soft error", LOG_PRINTF, 1613 fd->sc_skip / FD_BSIZE(fd), 1614 (struct disklabel *)NULL); 1615 printf("\n"); 1616 fdc->sc_errors = 0; 1617 } else { 1618 if (--fdc->sc_overruns < -20) { 1619 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1620 if (thr > 0) { 1621 thr--; 1622 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1623 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1624 #ifdef FD_DEBUG 1625 if (fdc_debug) 1626 printf("fdc: %d -> threshold\n", thr); 1627 #endif 1628 fdconf(fdc); 1629 } 1630 fdc->sc_overruns = 0; 1631 } 1632 } 1633 fd->sc_blkno += fd->sc_nblks; 1634 fd->sc_skip += fd->sc_nbytes; 1635 fd->sc_bcount -= fd->sc_nbytes; 1636 if (finfo == NULL && fd->sc_bcount > 0) { 1637 bp->b_cylinder = fd->sc_blkno / fd->sc_type->seccyl; 1638 goto doseek; 1639 } 1640 fdfinish(fd, bp); 1641 goto loop; 1642 1643 case DORESET: 1644 /* try a reset, keep motor on */ 1645 fd_set_motor(fdc); 1646 delay(100); 1647 fdc->sc_nstat = 0; 1648 fdc->sc_itask = FDC_ITASK_SENSEI; 1649 fdc->sc_state = RESETCOMPLETE; 1650 timeout_add_msec(&fdc->fdctimeout_to, 500); 1651 fdc_reset(fdc); 1652 return (1); /* will return later */ 1653 1654 case RESETCOMPLETE: 1655 timeout_del(&fdc->fdctimeout_to); 1656 fdconf(fdc); 1657 1658 /* FALLTHROUGH */ 1659 case DORECAL: 1660 fdc->sc_state = RECALWAIT; 1661 fdc->sc_itask = FDC_ITASK_SENSEI; 1662 fdc->sc_nstat = 0; 1663 timeout_add_sec(&fdc->fdctimeout_to, 5); 1664 /* recalibrate function */ 1665 FDC_WRFIFO(fdc, NE7CMD_RECAL); 1666 FDC_WRFIFO(fdc, fd->sc_drive); 1667 return (1); /* will return later */ 1668 1669 case RECALWAIT: 1670 timeout_del(&fdc->fdctimeout_to); 1671 fdc->sc_state = RECALCOMPLETE; 1672 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1673 /* allow 1/30 second for heads to settle */ 1674 timeout_add(&fdc->fdcpseudointr_to, hz / 30); 1675 return (1); /* will return later */ 1676 } 1677 1678 case RECALCOMPLETE: 1679 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || cyl != 0) { 1680 #ifdef FD_DEBUG 1681 if (fdc_debug) 1682 fdcstatus(fdc, "recalibrate failed"); 1683 #endif 1684 fdcretry(fdc); 1685 goto loop; 1686 } 1687 fd->sc_cylin = 0; 1688 goto doseek; 1689 1690 case MOTORWAIT: 1691 if (fd->sc_flags & FD_MOTOR_WAIT) 1692 return (1); /* time's not up yet */ 1693 goto doseek; 1694 1695 default: 1696 fdcstatus(fdc, "stray interrupt"); 1697 return (1); 1698 } 1699 #ifdef DIAGNOSTIC 1700 panic("fdcintr: impossible"); 1701 #endif 1702 1703 xxx: 1704 /* 1705 * We get here if the chip locks up in FDC_WRFIFO() 1706 * Cancel any operation and schedule a reset 1707 */ 1708 timeout_del(&fdc->fdctimeout_to); 1709 fdcretry(fdc); 1710 fdc->sc_state = DORESET; 1711 goto loop; 1712 1713 #undef st0 1714 #undef st1 1715 #undef cyl 1716 } 1717 1718 void 1719 fdcretry(fdc) 1720 struct fdc_softc *fdc; 1721 { 1722 struct fd_softc *fd; 1723 struct buf *bp; 1724 int error = EIO; 1725 1726 fd = TAILQ_FIRST(&fdc->sc_drives); 1727 bp = fd->sc_q.b_actf; 1728 1729 fdc->sc_overruns = 0; 1730 if (fd->sc_opts & FDOPT_NORETRY) 1731 goto fail; 1732 1733 switch (fdc->sc_errors) { 1734 case 0: 1735 if (fdc->sc_nstat == 7 && 1736 (fdc->sc_status[0] & 0xd8) == 0x40 && 1737 (fdc->sc_status[1] & 0x2) == 0x2) { 1738 printf("%s: read-only medium\n", fd->sc_dv.dv_xname); 1739 error = EROFS; 1740 goto failsilent; 1741 } 1742 /* try again */ 1743 fdc->sc_state = 1744 (fdc->sc_flags & FDC_EIS) ? DOIO : DOSEEK; 1745 break; 1746 1747 case 1: case 2: case 3: 1748 /* didn't work; try recalibrating */ 1749 fdc->sc_state = DORECAL; 1750 break; 1751 1752 case 4: 1753 if (fdc->sc_nstat == 7 && 1754 fdc->sc_status[0] == 0 && 1755 fdc->sc_status[1] == 0 && 1756 fdc->sc_status[2] == 0) { 1757 /* 1758 * We've retried a few times and we've got 1759 * valid status and all three status bytes 1760 * are zero. Assume this condition is the 1761 * result of no disk loaded into the drive. 1762 */ 1763 printf("%s: no medium?\n", fd->sc_dv.dv_xname); 1764 error = ENODEV; 1765 goto failsilent; 1766 } 1767 1768 /* still no go; reset the bastard */ 1769 fdc->sc_state = DORESET; 1770 break; 1771 1772 default: 1773 fail: 1774 if ((fd->sc_opts & FDOPT_SILENT) == 0) { 1775 diskerr(bp, "fd", "hard error", LOG_PRINTF, 1776 fd->sc_skip / FD_BSIZE(fd), 1777 (struct disklabel *)NULL); 1778 printf("\n"); 1779 fdcstatus(fdc, "controller status"); 1780 } 1781 1782 failsilent: 1783 bp->b_flags |= B_ERROR; 1784 bp->b_error = error; 1785 fdfinish(fd, bp); 1786 } 1787 fdc->sc_errors++; 1788 } 1789 1790 daddr64_t 1791 fdsize(dev) 1792 dev_t dev; 1793 { 1794 1795 /* Swapping to floppies would not make sense. */ 1796 return (-1); 1797 } 1798 1799 int 1800 fddump(dev, blkno, va, size) 1801 dev_t dev; 1802 daddr64_t blkno; 1803 caddr_t va; 1804 size_t size; 1805 { 1806 1807 /* Not implemented. */ 1808 return (EINVAL); 1809 } 1810 1811 int 1812 fdioctl(dev, cmd, addr, flag, p) 1813 dev_t dev; 1814 u_long cmd; 1815 caddr_t addr; 1816 int flag; 1817 struct proc *p; 1818 { 1819 struct fd_softc *fd; 1820 struct fdc_softc *fdc; 1821 struct disklabel *lp; 1822 int unit; 1823 int error; 1824 #ifdef FD_DEBUG 1825 int i; 1826 #endif 1827 1828 unit = FDUNIT(dev); 1829 if (unit >= fd_cd.cd_ndevs) 1830 return (ENXIO); 1831 1832 fd = fd_cd.cd_devs[FDUNIT(dev)]; 1833 fdc = (struct fdc_softc *)fd->sc_dv.dv_parent; 1834 1835 switch (cmd) { 1836 case DIOCRLDINFO: 1837 lp = malloc(sizeof(*lp), M_TEMP, M_WAITOK); 1838 fdgetdisklabel(dev, fd, lp, 0); 1839 bcopy(lp, fd->sc_dk.dk_label, sizeof(*lp)); 1840 free(lp, M_TEMP); 1841 return 0; 1842 1843 case DIOCGPDINFO: 1844 fdgetdisklabel(dev, fd, (struct disklabel *)addr, 1); 1845 return 0; 1846 1847 case DIOCGDINFO: 1848 *(struct disklabel *)addr = *(fd->sc_dk.dk_label); 1849 return 0; 1850 1851 case DIOCGPART: 1852 ((struct partinfo *)addr)->disklab = fd->sc_dk.dk_label; 1853 ((struct partinfo *)addr)->part = 1854 &fd->sc_dk.dk_label->d_partitions[DISKPART(dev)]; 1855 return 0; 1856 1857 case DIOCWDINFO: 1858 case DIOCSDINFO: 1859 if ((flag & FWRITE) == 0) 1860 return (EBADF); 1861 1862 error = setdisklabel(fd->sc_dk.dk_label, 1863 (struct disklabel *)addr, 0); 1864 if (error == 0) { 1865 if (cmd == DIOCWDINFO) 1866 error = writedisklabel(DISKLABELDEV(dev), 1867 fdstrategy, fd->sc_dk.dk_label); 1868 } 1869 return (error); 1870 1871 case DIOCLOCK: 1872 /* 1873 * Nothing to do here, really. 1874 */ 1875 return (0); 1876 1877 case MTIOCTOP: 1878 if (((struct mtop *)addr)->mt_op != MTOFFL) 1879 return (EIO); 1880 /* FALLTHROUGH */ 1881 case DIOCEJECT: 1882 if (fdc->sc_flags & FDC_NOEJECT) 1883 return (ENODEV); 1884 fd_do_eject(fd); 1885 return (0); 1886 1887 case FD_FORM: 1888 if ((flag & FWRITE) == 0) 1889 return (EBADF); /* must be opened for writing */ 1890 else if (((struct fd_formb *)addr)->format_version != 1891 FD_FORMAT_VERSION) 1892 return (EINVAL);/* wrong version of formatting prog */ 1893 else 1894 return fdformat(dev, (struct fd_formb *)addr, p); 1895 break; 1896 1897 case FD_GTYPE: /* get drive options */ 1898 *(struct fd_type *)addr = *fd->sc_type; 1899 return (0); 1900 1901 case FD_GOPTS: /* get drive options */ 1902 *(int *)addr = fd->sc_opts; 1903 return (0); 1904 1905 case FD_SOPTS: /* set drive options */ 1906 fd->sc_opts = *(int *)addr; 1907 return (0); 1908 1909 #ifdef FD_DEBUG 1910 case _IO('f', 100): 1911 fdc_wrfifo(fdc, NE7CMD_DUMPREG); 1912 fdcresult(fdc); 1913 printf("fdc: dumpreg(%d regs): <", fdc->sc_nstat); 1914 for (i = 0; i < fdc->sc_nstat; i++) 1915 printf(" 0x%x", fdc->sc_status[i]); 1916 printf(">\n"); 1917 return (0); 1918 1919 case _IOW('f', 101, int): 1920 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1921 fdc->sc_cfg |= (*(int *)addr & CFG_THRHLD_MASK); 1922 fdconf(fdc); 1923 return (0); 1924 1925 case _IO('f', 102): 1926 fdc_wrfifo(fdc, NE7CMD_SENSEI); 1927 fdcresult(fdc); 1928 printf("fdc: sensei(%d regs): <", fdc->sc_nstat); 1929 for (i=0; i< fdc->sc_nstat; i++) 1930 printf(" 0x%x", fdc->sc_status[i]); 1931 printf(">\n"); 1932 return (0); 1933 #endif 1934 default: 1935 return (ENOTTY); 1936 } 1937 } 1938 1939 int 1940 fdformat(dev, finfo, p) 1941 dev_t dev; 1942 struct fd_formb *finfo; 1943 struct proc *p; 1944 { 1945 int rv = 0; 1946 struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; 1947 struct fd_type *type = fd->sc_type; 1948 struct buf *bp; 1949 1950 /* set up a buffer header for fdstrategy() */ 1951 bp = malloc(sizeof(*bp), M_TEMP, M_NOWAIT | M_ZERO); 1952 if (bp == NULL) 1953 return (ENOBUFS); 1954 1955 bp->b_flags = B_BUSY | B_PHYS | B_FORMAT | B_RAW; 1956 bp->b_proc = p; 1957 bp->b_dev = dev; 1958 1959 /* 1960 * Calculate a fake blkno, so fdstrategy() would initiate a 1961 * seek to the requested cylinder. 1962 */ 1963 bp->b_blkno = ((finfo->cyl * (type->sectrac * type->heads) 1964 + finfo->head * type->sectrac) * FD_BSIZE(fd)) 1965 / DEV_BSIZE; 1966 1967 bp->b_bcount = sizeof(struct fd_idfield_data) * finfo->fd_formb_nsecs; 1968 bp->b_data = (caddr_t)finfo; 1969 1970 #ifdef FD_DEBUG 1971 if (fdc_debug) { 1972 int i; 1973 1974 printf("fdformat: blkno 0x%llx count %ld\n", 1975 (unsigned long long)bp->b_blkno, bp->b_bcount); 1976 1977 printf("\tcyl:\t%d\n", finfo->cyl); 1978 printf("\thead:\t%d\n", finfo->head); 1979 printf("\tnsecs:\t%d\n", finfo->fd_formb_nsecs); 1980 printf("\tsshft:\t%d\n", finfo->fd_formb_secshift); 1981 printf("\tgaplen:\t%d\n", finfo->fd_formb_gaplen); 1982 printf("\ttrack data:"); 1983 for (i = 0; i < finfo->fd_formb_nsecs; i++) { 1984 printf(" [c%d h%d s%d]", 1985 finfo->fd_formb_cylno(i), 1986 finfo->fd_formb_headno(i), 1987 finfo->fd_formb_secno(i) ); 1988 if (finfo->fd_formb_secsize(i) != 2) 1989 printf("<sz:%d>", finfo->fd_formb_secsize(i)); 1990 } 1991 printf("\n"); 1992 } 1993 #endif 1994 1995 /* now do the format */ 1996 fdstrategy(bp); 1997 1998 /* ...and wait for it to complete */ 1999 rv = biowait(bp); 2000 free(bp, M_TEMP); 2001 return (rv); 2002 } 2003 2004 int 2005 fdgetdisklabel(dev_t dev, struct fd_softc *fd, struct disklabel *lp, 2006 int spoofonly) 2007 { 2008 bzero(lp, sizeof(struct disklabel)); 2009 2010 lp->d_type = DTYPE_FLOPPY; 2011 lp->d_secsize = FD_BSIZE(fd); 2012 lp->d_secpercyl = fd->sc_type->seccyl; 2013 lp->d_nsectors = fd->sc_type->sectrac; 2014 lp->d_ncylinders = fd->sc_type->tracks; 2015 lp->d_ntracks = fd->sc_type->heads; /* Go figure... */ 2016 DL_SETDSIZE(lp, (daddr64_t)lp->d_secpercyl * lp->d_ncylinders); 2017 2018 strncpy(lp->d_typename, "floppy disk", sizeof(lp->d_typename)); 2019 strncpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); 2020 lp->d_version = 1; 2021 2022 lp->d_magic = DISKMAGIC; 2023 lp->d_magic2 = DISKMAGIC; 2024 lp->d_checksum = dkcksum(lp); 2025 2026 /* 2027 * Call the generic disklabel extraction routine. If there's 2028 * not a label there, fake it. 2029 */ 2030 return readdisklabel(DISKLABELDEV(dev), fdstrategy, lp, spoofonly); 2031 } 2032 2033 void 2034 fd_do_eject(fd) 2035 struct fd_softc *fd; 2036 { 2037 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 2038 bus_space_tag_t t = fdc->sc_bustag; 2039 bus_space_handle_t h = fdc->sc_handle; 2040 u_int8_t dor = FDO_FRST | FDO_FDMAEN | FDO_MOEN(0); 2041 2042 bus_space_write_1(t, h, FDREG77_DOR, dor | FDO_EJ); 2043 delay(10); 2044 bus_space_write_1(t, h, FDREG77_DOR, FDO_FRST | FDO_DS); 2045 } 2046