1 /* $OpenBSD: fd.c,v 1.26 2008/10/15 19:12:19 blambert 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> 123 124 #include <dev/cons.h> 125 126 #include <uvm/uvm_extern.h> 127 128 #include <machine/autoconf.h> 129 #include <machine/conf.h> 130 #include <machine/intr.h> 131 #include <machine/ioctl_fd.h> 132 133 #include <sparc64/dev/auxioreg.h> 134 #include <sparc64/dev/auxiovar.h> 135 #include <sparc64/dev/ebusreg.h> 136 #include <sparc64/dev/ebusvar.h> 137 #include <sparc64/dev/fdreg.h> 138 #include <sparc64/dev/fdvar.h> 139 140 #define FDUNIT(dev) ((minor(dev) / MAXPARTITIONS) / 8) 141 #define FDTYPE(dev) ((minor(dev) / MAXPARTITIONS) % 8) 142 143 #define FTC_FLIP \ 144 do { \ 145 auxio_fd_control(AUXIO_LED_FTC); \ 146 auxio_fd_control(0); \ 147 } while (0) 148 149 /* XXX misuse a flag to identify format operation */ 150 #define B_FORMAT B_XXX 151 152 #ifdef FD_DEBUG 153 int fdc_debug = 0; 154 #endif 155 156 enum fdc_state { 157 DEVIDLE = 0, 158 MOTORWAIT, /* 1 */ 159 DOSEEK, /* 2 */ 160 SEEKWAIT, /* 3 */ 161 SEEKTIMEDOUT, /* 4 */ 162 SEEKCOMPLETE, /* 5 */ 163 DOIO, /* 6 */ 164 IOCOMPLETE, /* 7 */ 165 IOTIMEDOUT, /* 8 */ 166 IOCLEANUPWAIT, /* 9 */ 167 IOCLEANUPTIMEDOUT,/*10 */ 168 DORESET, /* 11 */ 169 RESETCOMPLETE, /* 12 */ 170 RESETTIMEDOUT, /* 13 */ 171 DORECAL, /* 14 */ 172 RECALWAIT, /* 15 */ 173 RECALTIMEDOUT, /* 16 */ 174 RECALCOMPLETE, /* 17 */ 175 DODSKCHG, /* 18 */ 176 DSKCHGWAIT, /* 19 */ 177 DSKCHGTIMEDOUT, /* 20 */ 178 }; 179 180 /* software state, per controller */ 181 struct fdc_softc { 182 struct device sc_dev; /* boilerplate */ 183 bus_space_tag_t sc_bustag; 184 185 struct timeout fdctimeout_to; 186 struct timeout fdcpseudointr_to; 187 188 struct fd_softc *sc_fd[4]; /* pointers to children */ 189 TAILQ_HEAD(drivehead, fd_softc) sc_drives; 190 enum fdc_state sc_state; 191 int sc_flags; 192 #define FDC_EBUS 0x01 193 #define FDC_NEEDHEADSETTLE 0x02 194 #define FDC_EIS 0x04 195 #define FDC_NEEDMOTORWAIT 0x08 196 #define FDC_NOEJECT 0x10 197 int sc_errors; /* number of retries so far */ 198 int sc_overruns; /* number of DMA overruns */ 199 int sc_cfg; /* current configuration */ 200 struct fdcio sc_io; 201 #define sc_handle sc_io.fdcio_handle 202 #define sc_itask sc_io.fdcio_itask 203 #define sc_istatus sc_io.fdcio_istatus 204 #define sc_data sc_io.fdcio_data 205 #define sc_tc sc_io.fdcio_tc 206 #define sc_nstat sc_io.fdcio_nstat 207 #define sc_status sc_io.fdcio_status 208 209 void *sc_sicookie; /* softintr(9) cookie */ 210 }; 211 212 /* controller driver configuration */ 213 int fdcmatch_sbus(struct device *, void *, void *); 214 int fdcmatch_ebus(struct device *, void *, void *); 215 void fdcattach_sbus(struct device *, struct device *, void *); 216 void fdcattach_ebus(struct device *, struct device *, void *); 217 218 int fdcattach(struct fdc_softc *, int); 219 220 struct cfattach fdc_sbus_ca = { 221 sizeof(struct fdc_softc), fdcmatch_sbus, fdcattach_sbus 222 }; 223 224 struct cfattach fdc_ebus_ca = { 225 sizeof(struct fdc_softc), fdcmatch_ebus, fdcattach_ebus 226 }; 227 228 struct cfdriver fdc_cd = { 229 NULL, "fdc", DV_DULL 230 }; 231 232 __inline struct fd_type *fd_dev_to_type(struct fd_softc *, dev_t); 233 234 /* The order of entries in the following table is important -- BEWARE! */ 235 struct fd_type fd_types[] = { 236 { 18,2,36,2,0xff,0xcf,0x1b,0x54,80,2880,1,FDC_500KBPS, "1.44MB" }, /* 1.44MB diskette */ 237 { 9,2,18,2,0xff,0xdf,0x2a,0x50,80,1440,1,FDC_250KBPS, "720KB" }, /* 3.5" 720kB diskette */ 238 { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,2,FDC_250KBPS, "360KB/x" }, /* 360kB in 720kB drive */ 239 { 8,2,16,3,0xff,0xdf,0x35,0x74,77,1232,1,FDC_500KBPS, "1.2MB/NEC" } /* 1.2 MB japanese format */ 240 }; 241 242 /* software state, per disk (with up to 4 disks per ctlr) */ 243 struct fd_softc { 244 struct device sc_dv; /* generic device info */ 245 struct disk sc_dk; /* generic disk info */ 246 247 struct fd_type *sc_deftype; /* default type descriptor */ 248 struct fd_type *sc_type; /* current type descriptor */ 249 250 struct timeout sc_motoron_to; 251 struct timeout sc_motoroff_to; 252 253 daddr64_t sc_blkno; /* starting block number */ 254 int sc_bcount; /* byte count left */ 255 int sc_skip; /* bytes already transferred */ 256 int sc_nblks; /* number of blocks currently transferring */ 257 int sc_nbytes; /* number of bytes currently transferring */ 258 259 int sc_drive; /* physical unit number */ 260 int sc_flags; 261 #define FD_OPEN 0x01 /* it's open */ 262 #define FD_MOTOR 0x02 /* motor should be on */ 263 #define FD_MOTOR_WAIT 0x04 /* motor coming up */ 264 int sc_cylin; /* where we think the head is */ 265 int sc_opts; /* user-set options */ 266 267 void *sc_sdhook; /* shutdownhook cookie */ 268 269 TAILQ_ENTRY(fd_softc) sc_drivechain; 270 int sc_ops; /* I/O ops since last switch */ 271 struct buf sc_q; /* pending I/O requests */ 272 }; 273 274 /* floppy driver configuration */ 275 int fdmatch(struct device *, void *, void *); 276 void fdattach(struct device *, struct device *, void *); 277 278 struct cfattach fd_ca = { 279 sizeof(struct fd_softc), fdmatch, fdattach 280 }; 281 282 struct cfdriver fd_cd = { 283 NULL, "fd", DV_DISK 284 }; 285 286 void fdgetdisklabel(dev_t, struct fd_softc *, struct disklabel *, int); 287 int fd_get_parms(struct fd_softc *); 288 void fdstrategy(struct buf *); 289 void fdstart(struct fd_softc *); 290 int fdprint(void *, const char *); 291 292 struct dkdriver fddkdriver = { fdstrategy }; 293 294 struct fd_type *fd_nvtotype(char *, int, int); 295 void fd_set_motor(struct fdc_softc *fdc); 296 void fd_motor_off(void *arg); 297 void fd_motor_on(void *arg); 298 int fdcresult(struct fdc_softc *fdc); 299 int fdc_wrfifo(struct fdc_softc *fdc, u_char x); 300 void fdcstart(struct fdc_softc *fdc); 301 void fdcstatus(struct fdc_softc *fdc, char *s); 302 void fdc_reset(struct fdc_softc *fdc); 303 int fdc_diskchange(struct fdc_softc *fdc); 304 void fdctimeout(void *arg); 305 void fdcpseudointr(void *arg); 306 int fdchwintr(void *); 307 void fdcswintr(void *); 308 int fdcstate(struct fdc_softc *); 309 void fdcretry(struct fdc_softc *fdc); 310 void fdfinish(struct fd_softc *fd, struct buf *bp); 311 int fdformat(dev_t, struct fd_formb *, struct proc *); 312 void fd_do_eject(struct fd_softc *); 313 static int fdconf(struct fdc_softc *); 314 315 int 316 fdcmatch_sbus(parent, match, aux) 317 struct device *parent; 318 void *match, *aux; 319 { 320 struct sbus_attach_args *sa = aux; 321 322 return (strcmp("SUNW,fdtwo", sa->sa_name) == 0); 323 } 324 325 void 326 fdcattach_sbus(parent, self, aux) 327 struct device *parent, *self; 328 void *aux; 329 { 330 struct fdc_softc *fdc = (void *)self; 331 struct sbus_attach_args *sa = aux; 332 333 if (sa->sa_nintr == 0) { 334 printf(": no interrupt line configured\n"); 335 return; 336 } 337 338 if (auxio_fd_control(0) != 0) { 339 printf(": can't attach before auxio\n"); 340 return; 341 } 342 343 fdc->sc_bustag = sa->sa_bustag; 344 345 if (sbus_bus_map(sa->sa_bustag, 346 sa->sa_slot, sa->sa_offset, sa->sa_size, 347 BUS_SPACE_MAP_LINEAR, 0, &fdc->sc_handle) != 0) { 348 printf(": cannot map control registers\n"); 349 return; 350 } 351 352 if (strcmp(getpropstring(sa->sa_node, "status"), "disabled") == 0) { 353 printf(": no drives attached\n"); 354 return; 355 } 356 357 if (getproplen(sa->sa_node, "manual") >= 0) 358 fdc->sc_flags |= FDC_NOEJECT; 359 360 if (fdcattach(fdc, sa->sa_pri) != 0) 361 bus_space_unmap(sa->sa_bustag, fdc->sc_handle, sa->sa_size); 362 } 363 364 int 365 fdcmatch_ebus(parent, match, aux) 366 struct device *parent; 367 void *match, *aux; 368 { 369 struct ebus_attach_args *ea = aux; 370 371 return (strcmp("fdthree", ea->ea_name) == 0); 372 } 373 374 void 375 fdcattach_ebus(parent, self, aux) 376 struct device *parent, *self; 377 void *aux; 378 { 379 struct fdc_softc *fdc = (void *)self; 380 struct ebus_attach_args *ea = aux; 381 382 if (ea->ea_nintrs == 0) { 383 printf(": no interrupt line configured\n"); 384 return; 385 } 386 387 if (ea->ea_nregs < 3) { 388 printf(": expected 3 registers, only got %d\n", 389 ea->ea_nregs); 390 return; 391 } 392 393 if (ea->ea_nvaddrs > 0) { 394 if (bus_space_map(ea->ea_memtag, ea->ea_vaddrs[0], 0, 395 BUS_SPACE_MAP_PROMADDRESS, &fdc->sc_handle) != 0) { 396 printf(": can't map control registers\n"); 397 return; 398 } 399 fdc->sc_bustag = ea->ea_memtag; 400 } else if (ebus_bus_map(ea->ea_memtag, 0, 401 EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), 402 ea->ea_regs[0].size, 0, 0, &fdc->sc_handle) == 0) { 403 fdc->sc_bustag = ea->ea_memtag; 404 } else if (ebus_bus_map(ea->ea_iotag, 0, 405 EBUS_PADDR_FROM_REG(&ea->ea_regs[0]), 406 ea->ea_regs[0].size, 0, 0, &fdc->sc_handle) == 0) { 407 fdc->sc_bustag = ea->ea_iotag; 408 } else { 409 printf(": can't map control registers\n"); 410 return; 411 } 412 413 if (strcmp(getpropstring(ea->ea_node, "status"), "disabled") == 0) { 414 printf(": no drives attached\n"); 415 return; 416 } 417 418 fdc->sc_flags |= FDC_EBUS; 419 420 if (getproplen(ea->ea_node, "manual") >= 0) 421 fdc->sc_flags |= FDC_NOEJECT; 422 423 /* XXX unmapping if it fails */ 424 fdcattach(fdc, ea->ea_intrs[0]); 425 } 426 427 /* 428 * Arguments passed between fdcattach and fdprobe. 429 */ 430 struct fdc_attach_args { 431 int fa_drive; 432 struct fd_type *fa_deftype; 433 }; 434 435 /* 436 * Print the location of a disk drive (called just before attaching the 437 * the drive). If `fdc' is not NULL, the drive was found but was not 438 * in the system config file; print the drive name as well. 439 * Return QUIET (config_find ignores this if the device was configured) to 440 * avoid printing `fdN not configured' messages. 441 */ 442 int 443 fdprint(aux, fdc) 444 void *aux; 445 const char *fdc; 446 { 447 register struct fdc_attach_args *fa = aux; 448 449 if (!fdc) 450 printf(" drive %d", fa->fa_drive); 451 return (QUIET); 452 } 453 454 /* 455 * Configure several parameters and features on the FDC. 456 * Return 0 on success. 457 */ 458 static int 459 fdconf(fdc) 460 struct fdc_softc *fdc; 461 { 462 int vroom; 463 464 if (fdc_wrfifo(fdc, NE7CMD_DUMPREG) || fdcresult(fdc) != 10) 465 return (-1); 466 467 /* 468 * dumpreg[7] seems to be a motor-off timeout; set it to whatever 469 * the PROM thinks is appropriate. 470 */ 471 if ((vroom = fdc->sc_status[7]) == 0) 472 vroom = 0x64; 473 474 /* Configure controller to use FIFO and Implied Seek */ 475 if (fdc_wrfifo(fdc, NE7CMD_CFG) != 0) 476 return (-1); 477 if (fdc_wrfifo(fdc, vroom) != 0) 478 return (-1); 479 if (fdc_wrfifo(fdc, fdc->sc_cfg) != 0) 480 return (-1); 481 if (fdc_wrfifo(fdc, 0) != 0) /* PRETRK */ 482 return (-1); 483 /* No result phase for the NE7CMD_CFG command */ 484 485 /* Lock configuration across soft resets. */ 486 if (fdc_wrfifo(fdc, NE7CMD_LOCK | CFG_LOCK) != 0 || 487 fdcresult(fdc) != 1) { 488 #ifdef FD_DEBUG 489 printf("fdconf: CFGLOCK failed"); 490 #endif 491 return (-1); 492 } 493 494 return (0); 495 #if 0 496 if (fdc_wrfifo(fdc, NE7CMD_VERSION) == 0 && 497 fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x90) { 498 if (fdc_debug) 499 printf("[version cmd]"); 500 } 501 #endif 502 } 503 504 int 505 fdcattach(fdc, pri) 506 struct fdc_softc *fdc; 507 int pri; 508 { 509 struct fdc_attach_args fa; 510 int drive_attached; 511 512 timeout_set(&fdc->fdctimeout_to, fdctimeout, fdc); 513 timeout_set(&fdc->fdcpseudointr_to, fdcpseudointr, fdc); 514 515 fdc->sc_state = DEVIDLE; 516 fdc->sc_itask = FDC_ITASK_NONE; 517 fdc->sc_istatus = FDC_ISTATUS_NONE; 518 fdc->sc_flags |= FDC_EIS | FDC_NEEDMOTORWAIT; 519 TAILQ_INIT(&fdc->sc_drives); 520 521 /* 522 * Configure controller; enable FIFO, Implied seek, no POLL mode?. 523 * Note: CFG_EFIFO is active-low, initial threshold value: 8 524 */ 525 fdc->sc_cfg = CFG_EIS|/*CFG_EFIFO|*/CFG_POLL|(8 & CFG_THRHLD_MASK); 526 if (fdconf(fdc) != 0) { 527 printf("\n%s: no drives attached\n", fdc->sc_dev.dv_xname); 528 return (-1); 529 } 530 531 if (bus_intr_establish(fdc->sc_bustag, pri, IPL_BIO, 532 0, fdchwintr, fdc, fdc->sc_dev.dv_xname) == NULL) { 533 printf("\n%s: cannot register interrupt handler\n", 534 fdc->sc_dev.dv_xname); 535 return (-1); 536 } 537 538 fdc->sc_sicookie = softintr_establish(IPL_BIO, fdcswintr, fdc); 539 if (fdc->sc_sicookie == NULL) { 540 printf("\n%s: cannot register soft interrupt handler\n", 541 fdc->sc_dev.dv_xname); 542 return (-1); 543 } 544 545 printf(" softpri %d", PIL_FDSOFT); 546 if (fdc->sc_flags & FDC_NOEJECT) 547 printf(": manual eject"); 548 printf("\n"); 549 550 /* physical limit: four drives per controller. */ 551 drive_attached = 0; 552 for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) { 553 fa.fa_deftype = NULL; /* unknown */ 554 fa.fa_deftype = &fd_types[0]; /* XXX */ 555 if (config_found(&fdc->sc_dev, (void *)&fa, fdprint) != NULL) 556 drive_attached = 1; 557 } 558 559 if (drive_attached == 0) { 560 /* XXX - dis-establish interrupts here */ 561 /* return (-1); */ 562 } 563 564 return (0); 565 } 566 567 int 568 fdmatch(parent, match, aux) 569 struct device *parent; 570 void *match; 571 void *aux; 572 { 573 struct fdc_softc *fdc = (void *)parent; 574 bus_space_tag_t t = fdc->sc_bustag; 575 bus_space_handle_t h = fdc->sc_handle; 576 struct fdc_attach_args *fa = aux; 577 int drive = fa->fa_drive; 578 int n, ok; 579 580 if (drive > 0) 581 /* XXX - for now, punt on more than one drive */ 582 return (0); 583 584 /* select drive and turn on motor */ 585 bus_space_write_1(t, h, FDREG77_DOR, 586 drive | FDO_FRST | FDO_MOEN(drive)); 587 /* wait for motor to spin up */ 588 delay(250000); 589 590 fdc->sc_nstat = 0; 591 fdc_wrfifo(fdc, NE7CMD_RECAL); 592 fdc_wrfifo(fdc, drive); 593 594 /* Wait for recalibration to complete */ 595 for (n = 0; n < 10000; n++) { 596 u_int8_t v; 597 598 delay(1000); 599 v = bus_space_read_1(t, h, FDREG77_MSR); 600 if ((v & (NE7_RQM|NE7_DIO|NE7_CB)) == NE7_RQM) { 601 /* wait a bit longer till device *really* is ready */ 602 delay(100000); 603 if (fdc_wrfifo(fdc, NE7CMD_SENSEI)) 604 break; 605 if (fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x80) 606 /* 607 * Got `invalid command'; we interpret it 608 * to mean that the re-calibrate hasn't in 609 * fact finished yet 610 */ 611 continue; 612 break; 613 } 614 } 615 n = fdc->sc_nstat; 616 #ifdef FD_DEBUG 617 if (fdc_debug) { 618 int i; 619 printf("fdprobe: %d stati:", n); 620 for (i = 0; i < n; i++) 621 printf(" 0x%x", fdc->sc_status[i]); 622 printf("\n"); 623 } 624 #endif 625 ok = (n == 2 && (fdc->sc_status[0] & 0xf8) == 0x20) ? 1 : 0; 626 627 /* deselect drive and turn motor off */ 628 bus_space_write_1(t, h, FDREG77_DOR, FDO_FRST | FDO_DS); 629 630 return (ok); 631 } 632 633 /* 634 * Controller is working, and drive responded. Attach it. 635 */ 636 void 637 fdattach(parent, self, aux) 638 struct device *parent, *self; 639 void *aux; 640 { 641 struct fdc_softc *fdc = (void *)parent; 642 struct fd_softc *fd = (void *)self; 643 struct fdc_attach_args *fa = aux; 644 struct fd_type *type = fa->fa_deftype; 645 int drive = fa->fa_drive; 646 647 timeout_set(&fd->sc_motoron_to, fd_motor_on, fd); 648 timeout_set(&fd->sc_motoroff_to, fd_motor_off, fd); 649 650 /* XXX Allow `flags' to override device type? */ 651 652 if (type) 653 printf(": %s %d cyl, %d head, %d sec\n", type->name, 654 type->tracks, type->heads, type->sectrac); 655 else 656 printf(": density unknown\n"); 657 658 fd->sc_cylin = -1; 659 fd->sc_drive = drive; 660 fd->sc_deftype = type; 661 fdc->sc_fd[drive] = fd; 662 663 fdc_wrfifo(fdc, NE7CMD_SPECIFY); 664 fdc_wrfifo(fdc, type->steprate); 665 /* XXX head load time == 6ms */ 666 fdc_wrfifo(fdc, 6 | NE7_SPECIFY_NODMA); 667 668 /* 669 * Initialize and attach the disk structure. 670 */ 671 fd->sc_dk.dk_name = fd->sc_dv.dv_xname; 672 fd->sc_dk.dk_driver = &fddkdriver; 673 disk_attach(&fd->sc_dk); 674 675 /* Make sure the drive motor gets turned off at shutdown time. */ 676 fd->sc_sdhook = shutdownhook_establish(fd_motor_off, fd); 677 } 678 679 __inline struct fd_type * 680 fd_dev_to_type(fd, dev) 681 struct fd_softc *fd; 682 dev_t dev; 683 { 684 int type = FDTYPE(dev); 685 686 if (type > (sizeof(fd_types) / sizeof(fd_types[0]))) 687 return (NULL); 688 return (type ? &fd_types[type - 1] : fd->sc_deftype); 689 } 690 691 void 692 fdstrategy(bp) 693 register struct buf *bp; /* IO operation to perform */ 694 { 695 struct fd_softc *fd; 696 int unit = FDUNIT(bp->b_dev); 697 int sz; 698 int s; 699 700 /* Valid unit, controller, and request? */ 701 if (unit >= fd_cd.cd_ndevs || 702 (fd = fd_cd.cd_devs[unit]) == 0 || 703 bp->b_blkno < 0 || 704 (((bp->b_bcount % FD_BSIZE(fd)) != 0 || 705 (bp->b_blkno * DEV_BSIZE) % FD_BSIZE(fd) != 0) && 706 (bp->b_flags & B_FORMAT) == 0)) { 707 bp->b_error = EINVAL; 708 goto bad; 709 } 710 711 /* If it's a null transfer, return immediately. */ 712 if (bp->b_bcount == 0) 713 goto done; 714 715 sz = howmany(bp->b_bcount, DEV_BSIZE); 716 717 if (bp->b_blkno + sz > (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd)) { 718 sz = (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd) 719 - bp->b_blkno; 720 if (sz == 0) { 721 /* If exactly at end of disk, return EOF. */ 722 bp->b_resid = bp->b_bcount; 723 goto done; 724 } 725 if (sz < 0) { 726 /* If past end of disk, return EINVAL. */ 727 bp->b_error = EINVAL; 728 goto bad; 729 } 730 /* Otherwise, truncate request. */ 731 bp->b_bcount = sz << DEV_BSHIFT; 732 } 733 734 bp->b_cylinder = (bp->b_blkno * DEV_BSIZE) / 735 (FD_BSIZE(fd) * fd->sc_type->seccyl); 736 737 #ifdef FD_DEBUG 738 if (fdc_debug > 1) 739 printf("fdstrategy: b_blkno %lld b_bcount %d blkno %lld cylin %d\n", 740 bp->b_blkno, bp->b_bcount, 741 fd->sc_blkno, bp->b_cylinder); 742 #endif 743 744 /* Queue transfer on drive, activate drive and controller if idle. */ 745 s = splbio(); 746 disksort(&fd->sc_q, bp); 747 timeout_del(&fd->sc_motoroff_to); /* a good idea */ 748 if (!fd->sc_q.b_active) 749 fdstart(fd); 750 #ifdef DIAGNOSTIC 751 else { 752 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 753 if (fdc->sc_state == DEVIDLE) { 754 printf("fdstrategy: controller inactive\n"); 755 fdcstart(fdc); 756 } 757 } 758 #endif 759 splx(s); 760 return; 761 762 bad: 763 bp->b_flags |= B_ERROR; 764 done: 765 /* Toss transfer; we're done early. */ 766 s = splbio(); 767 biodone(bp); 768 splx(s); 769 } 770 771 void 772 fdstart(fd) 773 struct fd_softc *fd; 774 { 775 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 776 int active = !TAILQ_EMPTY(&fdc->sc_drives); 777 778 /* Link into controller queue. */ 779 fd->sc_q.b_active = 1; 780 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 781 782 /* If controller not already active, start it. */ 783 if (!active) 784 fdcstart(fdc); 785 } 786 787 void 788 fdfinish(fd, bp) 789 struct fd_softc *fd; 790 struct buf *bp; 791 { 792 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 793 794 /* 795 * Move this drive to the end of the queue to give others a `fair' 796 * chance. We only force a switch if N operations are completed while 797 * another drive is waiting to be serviced, since there is a long motor 798 * startup delay whenever we switch. 799 */ 800 if (TAILQ_NEXT(fd, sc_drivechain) != NULL && ++fd->sc_ops >= 8) { 801 fd->sc_ops = 0; 802 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 803 if (bp->b_actf) { 804 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 805 } else 806 fd->sc_q.b_active = 0; 807 } 808 bp->b_resid = fd->sc_bcount; 809 fd->sc_skip = 0; 810 fd->sc_q.b_actf = bp->b_actf; 811 812 biodone(bp); 813 /* turn off motor 5s from now */ 814 timeout_add_sec(&fd->sc_motoroff_to, 5); 815 fdc->sc_state = DEVIDLE; 816 } 817 818 void 819 fdc_reset(fdc) 820 struct fdc_softc *fdc; 821 { 822 bus_space_tag_t t = fdc->sc_bustag; 823 bus_space_handle_t h = fdc->sc_handle; 824 825 bus_space_write_1(t, h, FDREG77_DOR, FDO_FDMAEN | FDO_MOEN(0)); 826 827 bus_space_write_1(t, h, FDREG77_DRS, DRS_RESET); 828 delay(10); 829 bus_space_write_1(t, h, FDREG77_DRS, 0); 830 831 bus_space_write_1(t, h, FDREG77_DOR, 832 FDO_FRST | FDO_FDMAEN | FDO_DS); 833 #ifdef FD_DEBUG 834 if (fdc_debug) 835 printf("fdc reset\n"); 836 #endif 837 } 838 839 void 840 fd_set_motor(fdc) 841 struct fdc_softc *fdc; 842 { 843 struct fd_softc *fd; 844 u_char status; 845 int n; 846 847 status = FDO_FRST | FDO_FDMAEN; 848 if ((fd = TAILQ_FIRST(&fdc->sc_drives)) != NULL) 849 status |= fd->sc_drive; 850 851 for (n = 0; n < 4; n++) 852 if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) 853 status |= FDO_MOEN(n); 854 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 855 FDREG77_DOR, status); 856 } 857 858 void 859 fd_motor_off(arg) 860 void *arg; 861 { 862 struct fd_softc *fd = arg; 863 int s; 864 865 s = splbio(); 866 fd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 867 fd_set_motor((struct fdc_softc *)fd->sc_dv.dv_parent); 868 splx(s); 869 } 870 871 void 872 fd_motor_on(arg) 873 void *arg; 874 { 875 struct fd_softc *fd = arg; 876 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 877 int s; 878 879 s = splbio(); 880 fd->sc_flags &= ~FD_MOTOR_WAIT; 881 if (fd == TAILQ_FIRST(&fdc->sc_drives) && fdc->sc_state == MOTORWAIT) 882 (void) fdcstate(fdc); 883 splx(s); 884 } 885 886 /* 887 * Get status bytes off the FDC after a command has finished 888 * Returns the number of status bytes read; -1 on error. 889 * The return value is also stored in `sc_nstat'. 890 */ 891 int 892 fdcresult(fdc) 893 struct fdc_softc *fdc; 894 { 895 bus_space_tag_t t = fdc->sc_bustag; 896 bus_space_handle_t h = fdc->sc_handle; 897 int j, n = 0; 898 899 for (j = 100000; j; j--) { 900 u_int8_t v = bus_space_read_1(t, h, FDREG77_MSR); 901 v &= (NE7_DIO | NE7_RQM | NE7_CB); 902 if (v == NE7_RQM) 903 return (fdc->sc_nstat = n); 904 if (v == (NE7_DIO | NE7_RQM | NE7_CB)) { 905 if (n >= sizeof(fdc->sc_status)) { 906 log(LOG_ERR, "fdcresult: overrun\n"); 907 return (-1); 908 } 909 fdc->sc_status[n++] = 910 bus_space_read_1(t, h, FDREG77_FIFO); 911 } else 912 delay(1); 913 } 914 915 log(LOG_ERR, "fdcresult: timeout\n"); 916 return (fdc->sc_nstat = -1); 917 } 918 919 /* 920 * Write a command byte to the FDC. 921 * Returns 0 on success; -1 on failure (i.e. timeout) 922 */ 923 int 924 fdc_wrfifo(fdc, x) 925 struct fdc_softc *fdc; 926 u_int8_t x; 927 { 928 bus_space_tag_t t = fdc->sc_bustag; 929 bus_space_handle_t h = fdc->sc_handle; 930 int i; 931 932 for (i = 100000; i-- != 0;) { 933 u_int8_t v = bus_space_read_1(t, h, FDREG77_MSR); 934 if ((v & (NE7_DIO|NE7_RQM)) == NE7_RQM) { 935 /* The chip is ready */ 936 bus_space_write_1(t, h, FDREG77_FIFO, x); 937 return (0); 938 } 939 delay(1); 940 } 941 return (-1); 942 } 943 944 int 945 fdc_diskchange(fdc) 946 struct fdc_softc *fdc; 947 { 948 bus_space_tag_t t = fdc->sc_bustag; 949 bus_space_handle_t h = fdc->sc_handle; 950 951 u_int8_t v = bus_space_read_1(t, h, FDREG77_DIR); 952 return ((v & FDI_DCHG) != 0); 953 } 954 955 int 956 fdopen(dev, flags, fmt, p) 957 dev_t dev; 958 int flags, fmt; 959 struct proc *p; 960 { 961 int unit, pmask; 962 struct fd_softc *fd; 963 struct fd_type *type; 964 965 unit = FDUNIT(dev); 966 if (unit >= fd_cd.cd_ndevs) 967 return (ENXIO); 968 fd = fd_cd.cd_devs[unit]; 969 if (fd == NULL) 970 return (ENXIO); 971 type = fd_dev_to_type(fd, dev); 972 if (type == NULL) 973 return (ENXIO); 974 975 if ((fd->sc_flags & FD_OPEN) != 0 && 976 fd->sc_type != type) 977 return (EBUSY); 978 979 fd->sc_type = type; 980 fd->sc_cylin = -1; 981 fd->sc_flags |= FD_OPEN; 982 983 /* 984 * Only update the disklabel if we're not open anywhere else. 985 */ 986 if (fd->sc_dk.dk_openmask == 0) 987 fdgetdisklabel(dev, fd, fd->sc_dk.dk_label, 0); 988 989 pmask = (1 << DISKPART(dev)); 990 991 switch (fmt) { 992 case S_IFCHR: 993 fd->sc_dk.dk_copenmask |= pmask; 994 break; 995 996 case S_IFBLK: 997 fd->sc_dk.dk_bopenmask |= pmask; 998 break; 999 } 1000 fd->sc_dk.dk_openmask = 1001 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1002 1003 return (0); 1004 } 1005 1006 int 1007 fdclose(dev, flags, fmt, p) 1008 dev_t dev; 1009 int flags, fmt; 1010 struct proc *p; 1011 { 1012 struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; 1013 int pmask = (1 << DISKPART(dev)); 1014 1015 fd->sc_flags &= ~FD_OPEN; 1016 fd->sc_opts &= ~(FDOPT_NORETRY|FDOPT_SILENT); 1017 1018 switch (fmt) { 1019 case S_IFCHR: 1020 fd->sc_dk.dk_copenmask &= ~pmask; 1021 break; 1022 1023 case S_IFBLK: 1024 fd->sc_dk.dk_bopenmask &= ~pmask; 1025 break; 1026 } 1027 fd->sc_dk.dk_openmask = 1028 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1029 1030 return (0); 1031 } 1032 1033 int 1034 fdread(dev, uio, flag) 1035 dev_t dev; 1036 struct uio *uio; 1037 int flag; 1038 { 1039 1040 return (physio(fdstrategy, NULL, dev, B_READ, minphys, uio)); 1041 } 1042 1043 int 1044 fdwrite(dev, uio, flag) 1045 dev_t dev; 1046 struct uio *uio; 1047 int flag; 1048 { 1049 1050 return (physio(fdstrategy, NULL, dev, B_WRITE, minphys, uio)); 1051 } 1052 1053 void 1054 fdcstart(fdc) 1055 struct fdc_softc *fdc; 1056 { 1057 1058 #ifdef DIAGNOSTIC 1059 /* only got here if controller's drive queue was inactive; should 1060 be in idle state */ 1061 if (fdc->sc_state != DEVIDLE) { 1062 printf("fdcstart: not idle\n"); 1063 return; 1064 } 1065 #endif 1066 (void) fdcstate(fdc); 1067 } 1068 1069 void 1070 fdcstatus(fdc, s) 1071 struct fdc_softc *fdc; 1072 char *s; 1073 { 1074 struct fd_softc *fd = TAILQ_FIRST(&fdc->sc_drives); 1075 int n; 1076 1077 /* Just print last status */ 1078 n = fdc->sc_nstat; 1079 1080 #if 0 1081 if (n == 0) { 1082 fdc_wrfifo(fdc, NE7CMD_SENSEI); 1083 (void) fdcresult(fdc); 1084 n = 2; 1085 } 1086 #endif 1087 1088 printf("%s: %s: state %d", 1089 fd ? fd->sc_dv.dv_xname : "fdc", s, fdc->sc_state); 1090 1091 switch (n) { 1092 case 0: 1093 printf("\n"); 1094 break; 1095 case 2: 1096 printf(" (st0 %b cyl %d)\n", 1097 fdc->sc_status[0], NE7_ST0BITS, 1098 fdc->sc_status[1]); 1099 break; 1100 case 7: 1101 printf(" (st0 %b st1 %b st2 %b cyl %d head %d sec %d)\n", 1102 fdc->sc_status[0], NE7_ST0BITS, 1103 fdc->sc_status[1], NE7_ST1BITS, 1104 fdc->sc_status[2], NE7_ST2BITS, 1105 fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); 1106 break; 1107 #ifdef DIAGNOSTIC 1108 default: 1109 printf(" fdcstatus: weird size: %d\n", n); 1110 break; 1111 #endif 1112 } 1113 } 1114 1115 void 1116 fdctimeout(arg) 1117 void *arg; 1118 { 1119 struct fdc_softc *fdc = arg; 1120 struct fd_softc *fd; 1121 int s; 1122 1123 s = splbio(); 1124 fd = TAILQ_FIRST(&fdc->sc_drives); 1125 if (fd == NULL) { 1126 printf("%s: timeout but no I/O pending: state %d, istatus=%d\n", 1127 fdc->sc_dev.dv_xname, fdc->sc_state, fdc->sc_istatus); 1128 fdc->sc_state = DEVIDLE; 1129 goto out; 1130 } 1131 1132 if (fd->sc_q.b_actf) 1133 fdc->sc_state++; 1134 else 1135 fdc->sc_state = DEVIDLE; 1136 1137 (void) fdcstate(fdc); 1138 out: 1139 splx(s); 1140 1141 } 1142 1143 void 1144 fdcpseudointr(arg) 1145 void *arg; 1146 { 1147 struct fdc_softc *fdc = arg; 1148 int s; 1149 1150 /* Just ensure it has the right spl. */ 1151 s = splbio(); 1152 (void) fdcstate(fdc); 1153 splx(s); 1154 } 1155 1156 1157 /* 1158 * Hardware interrupt entry point. 1159 * Unfortunately, we have no reliable way to determine that the 1160 * interrupt really came from the floppy controller; just hope 1161 * that the other devices that share this interrupt can do better.. 1162 */ 1163 int 1164 fdchwintr(arg) 1165 void *arg; 1166 { 1167 struct fdc_softc *fdc = arg; 1168 bus_space_tag_t t = fdc->sc_bustag; 1169 bus_space_handle_t h = fdc->sc_handle; 1170 1171 switch (fdc->sc_itask) { 1172 case FDC_ITASK_NONE: 1173 return (0); 1174 case FDC_ITASK_SENSEI: 1175 if (fdc_wrfifo(fdc, NE7CMD_SENSEI) != 0 || fdcresult(fdc) == -1) 1176 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1177 else 1178 fdc->sc_istatus = FDC_ISTATUS_DONE; 1179 softintr_schedule(fdc->sc_sicookie); 1180 return (1); 1181 case FDC_ITASK_RESULT: 1182 if (fdcresult(fdc) == -1) 1183 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1184 else 1185 fdc->sc_istatus = FDC_ISTATUS_DONE; 1186 softintr_schedule(fdc->sc_sicookie); 1187 return (1); 1188 case FDC_ITASK_DMA: 1189 /* Proceed with pseudo-DMA below */ 1190 break; 1191 default: 1192 printf("fdc: stray hard interrupt: itask=%d\n", fdc->sc_itask); 1193 fdc->sc_istatus = FDC_ISTATUS_SPURIOUS; 1194 softintr_schedule(fdc->sc_sicookie); 1195 return (1); 1196 } 1197 1198 /* 1199 * Pseudo DMA in progress 1200 */ 1201 for (;;) { 1202 u_int8_t msr; 1203 1204 msr = bus_space_read_1(t, h, FDREG77_MSR); 1205 1206 if ((msr & NE7_RQM) == 0) 1207 /* That's all this round */ 1208 break; 1209 1210 if ((msr & NE7_NDM) == 0) { 1211 fdcresult(fdc); 1212 fdc->sc_istatus = FDC_ISTATUS_DONE; 1213 softintr_schedule(fdc->sc_sicookie); 1214 #ifdef FD_DEBUG 1215 if (fdc_debug > 1) 1216 printf("fdc: overrun: msr = %x, tc = %d\n", 1217 msr, fdc->sc_tc); 1218 #endif 1219 break; 1220 } 1221 1222 /* Another byte can be transferred */ 1223 if ((msr & NE7_DIO) != 0) 1224 *fdc->sc_data = 1225 bus_space_read_1(t, h, FDREG77_FIFO); 1226 else 1227 bus_space_write_1(t, h, FDREG77_FIFO, 1228 *fdc->sc_data); 1229 1230 fdc->sc_data++; 1231 if (--fdc->sc_tc == 0) { 1232 fdc->sc_istatus = FDC_ISTATUS_DONE; 1233 FTC_FLIP; 1234 fdcresult(fdc); 1235 softintr_schedule(fdc->sc_sicookie); 1236 break; 1237 } 1238 } 1239 return (1); 1240 } 1241 1242 void 1243 fdcswintr(arg) 1244 void *arg; 1245 { 1246 struct fdc_softc *fdc = arg; 1247 int s; 1248 1249 if (fdc->sc_istatus == FDC_ISTATUS_NONE) 1250 /* This (software) interrupt is not for us */ 1251 return; 1252 1253 switch (fdc->sc_istatus) { 1254 case FDC_ISTATUS_ERROR: 1255 printf("fdc: ierror status: state %d\n", fdc->sc_state); 1256 break; 1257 case FDC_ISTATUS_SPURIOUS: 1258 printf("fdc: spurious interrupt: state %d\n", fdc->sc_state); 1259 break; 1260 } 1261 1262 s = splbio(); 1263 fdcstate(fdc); 1264 splx(s); 1265 return; 1266 } 1267 1268 int 1269 fdcstate(fdc) 1270 struct fdc_softc *fdc; 1271 { 1272 #define st0 fdc->sc_status[0] 1273 #define st1 fdc->sc_status[1] 1274 #define cyl fdc->sc_status[1] 1275 #define FDC_WRFIFO(fdc, c) \ 1276 do { \ 1277 if (fdc_wrfifo(fdc, (c))) { \ 1278 goto xxx; \ 1279 } \ 1280 } while(0) 1281 1282 struct fd_softc *fd; 1283 struct buf *bp; 1284 int read, head, sec, nblks; 1285 struct fd_type *type; 1286 struct fd_formb *finfo = NULL; 1287 1288 if (fdc->sc_istatus == FDC_ISTATUS_ERROR) { 1289 /* Prevent loop if the reset sequence produces errors */ 1290 if (fdc->sc_state != RESETCOMPLETE && 1291 fdc->sc_state != RECALWAIT && 1292 fdc->sc_state != RECALCOMPLETE) 1293 fdc->sc_state = DORESET; 1294 } 1295 1296 /* Clear I task/status field */ 1297 fdc->sc_istatus = FDC_ISTATUS_NONE; 1298 fdc->sc_itask = FDC_ITASK_NONE; 1299 1300 loop: 1301 /* Is there a drive for the controller to do a transfer with? */ 1302 fd = TAILQ_FIRST(&fdc->sc_drives); 1303 if (fd == NULL) { 1304 fdc->sc_state = DEVIDLE; 1305 return (0); 1306 } 1307 1308 /* Is there a transfer to this drive? If not, deactivate drive. */ 1309 bp = fd->sc_q.b_actf; 1310 if (bp == NULL) { 1311 fd->sc_ops = 0; 1312 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1313 fd->sc_q.b_active = 0; 1314 goto loop; 1315 } 1316 1317 if (bp->b_flags & B_FORMAT) 1318 finfo = (struct fd_formb *)bp->b_data; 1319 1320 switch (fdc->sc_state) { 1321 case DEVIDLE: 1322 fdc->sc_errors = 0; 1323 fd->sc_skip = 0; 1324 fd->sc_bcount = bp->b_bcount; 1325 fd->sc_blkno = (bp->b_blkno * DEV_BSIZE) / FD_BSIZE(fd); 1326 timeout_del(&fd->sc_motoroff_to); 1327 if ((fd->sc_flags & FD_MOTOR_WAIT) != 0) { 1328 fdc->sc_state = MOTORWAIT; 1329 return (1); 1330 } 1331 if ((fd->sc_flags & FD_MOTOR) == 0) { 1332 /* Turn on the motor, being careful about pairing. */ 1333 struct fd_softc *ofd = fdc->sc_fd[fd->sc_drive ^ 1]; 1334 if (ofd && ofd->sc_flags & FD_MOTOR) { 1335 timeout_del(&ofd->sc_motoroff_to); 1336 ofd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1337 } 1338 fd->sc_flags |= FD_MOTOR | FD_MOTOR_WAIT; 1339 fd_set_motor(fdc); 1340 fdc->sc_state = MOTORWAIT; 1341 if ((fdc->sc_flags & FDC_NEEDMOTORWAIT) != 0) { /*XXX*/ 1342 /* Allow .25s for motor to stabilize. */ 1343 timeout_add(&fd->sc_motoron_to, hz / 4); 1344 } else { 1345 fd->sc_flags &= ~FD_MOTOR_WAIT; 1346 goto loop; 1347 } 1348 return (1); 1349 } 1350 /* Make sure the right drive is selected. */ 1351 fd_set_motor(fdc); 1352 1353 if (fdc_diskchange(fdc)) 1354 goto dodskchg; 1355 1356 /*FALLTHROUGH*/ 1357 case DOSEEK: 1358 doseek: 1359 if ((fdc->sc_flags & FDC_EIS) && 1360 (bp->b_flags & B_FORMAT) == 0) { 1361 fd->sc_cylin = bp->b_cylinder; 1362 /* We use implied seek */ 1363 goto doio; 1364 } 1365 1366 if (fd->sc_cylin == bp->b_cylinder) 1367 goto doio; 1368 1369 fd->sc_cylin = -1; 1370 fdc->sc_state = SEEKWAIT; 1371 fdc->sc_nstat = 0; 1372 1373 fd->sc_dk.dk_seek++; 1374 1375 disk_busy(&fd->sc_dk); 1376 timeout_add_sec(&fdc->fdctimeout_to, 4); 1377 1378 /* specify command */ 1379 FDC_WRFIFO(fdc, NE7CMD_SPECIFY); 1380 FDC_WRFIFO(fdc, fd->sc_type->steprate); 1381 /* XXX head load time == 6ms */ 1382 FDC_WRFIFO(fdc, 6 | NE7_SPECIFY_NODMA); 1383 1384 fdc->sc_itask = FDC_ITASK_SENSEI; 1385 /* seek function */ 1386 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1387 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1388 FDC_WRFIFO(fdc, bp->b_cylinder * fd->sc_type->step); 1389 return (1); 1390 1391 case DODSKCHG: 1392 dodskchg: 1393 /* 1394 * Disk change: force a seek operation by going to cyl 1 1395 * followed by a recalibrate. 1396 */ 1397 disk_busy(&fd->sc_dk); 1398 timeout_add_sec(&fdc->fdctimeout_to, 4); 1399 fd->sc_cylin = -1; 1400 fdc->sc_nstat = 0; 1401 fdc->sc_state = DSKCHGWAIT; 1402 1403 fdc->sc_itask = FDC_ITASK_SENSEI; 1404 /* seek function */ 1405 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1406 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1407 FDC_WRFIFO(fdc, 1 * fd->sc_type->step); 1408 return (1); 1409 1410 case DSKCHGWAIT: 1411 timeout_del(&fdc->fdctimeout_to); 1412 disk_unbusy(&fd->sc_dk, 0, 0); 1413 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1414 cyl != 1 * fd->sc_type->step) { 1415 fdcstatus(fdc, "dskchg seek failed"); 1416 fdc->sc_state = DORESET; 1417 } else 1418 fdc->sc_state = DORECAL; 1419 1420 if (fdc_diskchange(fdc)) { 1421 printf("%s: cannot clear disk change status\n", 1422 fdc->sc_dev.dv_xname); 1423 fdc->sc_state = DORESET; 1424 } 1425 goto loop; 1426 1427 case DOIO: 1428 doio: 1429 if (finfo != NULL) 1430 fd->sc_skip = (char *)&(finfo->fd_formb_cylno(0)) - 1431 (char *)finfo; 1432 type = fd->sc_type; 1433 sec = fd->sc_blkno % type->seccyl; 1434 nblks = type->seccyl - sec; 1435 nblks = min(nblks, fd->sc_bcount / FD_BSIZE(fd)); 1436 nblks = min(nblks, FDC_MAXIOSIZE / FD_BSIZE(fd)); 1437 fd->sc_nblks = nblks; 1438 fd->sc_nbytes = finfo ? bp->b_bcount : nblks * FD_BSIZE(fd); 1439 head = sec / type->sectrac; 1440 sec -= head * type->sectrac; 1441 #ifdef DIAGNOSTIC 1442 { 1443 daddr64_t block; 1444 1445 block = (fd->sc_cylin * type->heads + head) * 1446 type->sectrac + sec; 1447 if (block != fd->sc_blkno) { 1448 printf("fdcintr: block %lld != blkno %d\n", 1449 block, (int)fd->sc_blkno); 1450 #if defined(FD_DEBUG) && defined(DDB) 1451 Debugger(); 1452 #endif 1453 } 1454 } 1455 #endif 1456 read = bp->b_flags & B_READ; 1457 1458 /* Setup for pseudo DMA */ 1459 fdc->sc_data = bp->b_data + fd->sc_skip; 1460 fdc->sc_tc = fd->sc_nbytes; 1461 1462 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1463 FDREG77_DRS, type->rate); 1464 #ifdef FD_DEBUG 1465 if (fdc_debug > 1) 1466 printf("fdcstate: doio: %s drive %d " 1467 "track %d head %d sec %d nblks %d\n", 1468 finfo ? "format" : 1469 (read ? "read" : "write"), 1470 fd->sc_drive, fd->sc_cylin, head, sec, nblks); 1471 #endif 1472 fdc->sc_state = IOCOMPLETE; 1473 fdc->sc_itask = FDC_ITASK_DMA; 1474 fdc->sc_nstat = 0; 1475 1476 disk_busy(&fd->sc_dk); 1477 1478 /* allow 3 seconds for operation */ 1479 timeout_add_sec(&fdc->fdctimeout_to, 3); 1480 1481 if (finfo != NULL) { 1482 /* formatting */ 1483 FDC_WRFIFO(fdc, NE7CMD_FORMAT); 1484 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1485 FDC_WRFIFO(fdc, finfo->fd_formb_secshift); 1486 FDC_WRFIFO(fdc, finfo->fd_formb_nsecs); 1487 FDC_WRFIFO(fdc, finfo->fd_formb_gaplen); 1488 FDC_WRFIFO(fdc, finfo->fd_formb_fillbyte); 1489 } else { 1490 if (read) 1491 FDC_WRFIFO(fdc, NE7CMD_READ); 1492 else 1493 FDC_WRFIFO(fdc, NE7CMD_WRITE); 1494 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1495 FDC_WRFIFO(fdc, fd->sc_cylin); /*track*/ 1496 FDC_WRFIFO(fdc, head); 1497 FDC_WRFIFO(fdc, sec + 1); /*sector+1*/ 1498 FDC_WRFIFO(fdc, type->secsize); /*sector size*/ 1499 FDC_WRFIFO(fdc, type->sectrac); /*secs/track*/ 1500 FDC_WRFIFO(fdc, type->gap1); /*gap1 size*/ 1501 FDC_WRFIFO(fdc, type->datalen); /*data length*/ 1502 } 1503 1504 return (1); /* will return later */ 1505 1506 case SEEKWAIT: 1507 timeout_del(&fdc->fdctimeout_to); 1508 fdc->sc_state = SEEKCOMPLETE; 1509 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1510 /* allow 1/50 second for heads to settle */ 1511 timeout_add(&fdc->fdcpseudointr_to, hz / 50); 1512 return (1); /* will return later */ 1513 } 1514 /*FALLTHROUGH*/ 1515 case SEEKCOMPLETE: 1516 /* no data on seek */ 1517 disk_unbusy(&fd->sc_dk, 0, 0); 1518 1519 /* Make sure seek really happened. */ 1520 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1521 cyl != bp->b_cylinder * fd->sc_type->step) { 1522 #ifdef FD_DEBUG 1523 if (fdc_debug) 1524 fdcstatus(fdc, "seek failed"); 1525 #endif 1526 fdcretry(fdc); 1527 goto loop; 1528 } 1529 fd->sc_cylin = bp->b_cylinder; 1530 goto doio; 1531 1532 case IOTIMEDOUT: 1533 /* 1534 * Try to abort the I/O operation without resetting 1535 * the chip first. Poke TC and arrange to pick up 1536 * the timed out I/O command's status. 1537 */ 1538 fdc->sc_itask = FDC_ITASK_RESULT; 1539 fdc->sc_state = IOCLEANUPWAIT; 1540 fdc->sc_nstat = 0; 1541 /* 1/10 second should be enough */ 1542 timeout_add(&fdc->fdctimeout_to, hz / 10); 1543 return (1); 1544 1545 case IOCLEANUPTIMEDOUT: 1546 case SEEKTIMEDOUT: 1547 case RECALTIMEDOUT: 1548 case RESETTIMEDOUT: 1549 case DSKCHGTIMEDOUT: 1550 fdcstatus(fdc, "timeout"); 1551 1552 /* All other timeouts always roll through to a chip reset */ 1553 fdcretry(fdc); 1554 1555 /* Force reset, no matter what fdcretry() says */ 1556 fdc->sc_state = DORESET; 1557 goto loop; 1558 1559 case IOCLEANUPWAIT: /* IO FAILED, cleanup succeeded */ 1560 timeout_del(&fdc->fdctimeout_to); 1561 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1562 (bp->b_flags & B_READ)); 1563 fdcretry(fdc); 1564 goto loop; 1565 1566 case IOCOMPLETE: /* IO DONE, post-analyze */ 1567 timeout_del(&fdc->fdctimeout_to); 1568 1569 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1570 (bp->b_flags & B_READ)); 1571 1572 if (fdc->sc_nstat != 7 || st1 != 0 || 1573 ((st0 & 0xf8) != 0 && 1574 ((st0 & 0xf8) != 0x20 || (fdc->sc_cfg & CFG_EIS) == 0))) { 1575 #ifdef FD_DEBUG 1576 if (fdc_debug) { 1577 fdcstatus(fdc, 1578 bp->b_flags & B_READ 1579 ? "read failed" : "write failed"); 1580 printf("blkno %lld nblks %d nstat %d tc %d\n", 1581 fd->sc_blkno, fd->sc_nblks, 1582 fdc->sc_nstat, fdc->sc_tc); 1583 } 1584 #endif 1585 if (fdc->sc_nstat == 7 && 1586 (st1 & ST1_OVERRUN) == ST1_OVERRUN) { 1587 1588 /* 1589 * Silently retry overruns if no other 1590 * error bit is set. Adjust threshold. 1591 */ 1592 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1593 if (thr < 15) { 1594 thr++; 1595 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1596 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1597 #ifdef FD_DEBUG 1598 if (fdc_debug) 1599 printf("fdc: %d -> threshold\n", thr); 1600 #endif 1601 fdconf(fdc); 1602 fdc->sc_overruns = 0; 1603 } 1604 if (++fdc->sc_overruns < 3) { 1605 fdc->sc_state = DOIO; 1606 goto loop; 1607 } 1608 } 1609 fdcretry(fdc); 1610 goto loop; 1611 } 1612 if (fdc->sc_errors) { 1613 diskerr(bp, "fd", "soft error", LOG_PRINTF, 1614 fd->sc_skip / FD_BSIZE(fd), 1615 (struct disklabel *)NULL); 1616 printf("\n"); 1617 fdc->sc_errors = 0; 1618 } else { 1619 if (--fdc->sc_overruns < -20) { 1620 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1621 if (thr > 0) { 1622 thr--; 1623 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1624 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1625 #ifdef FD_DEBUG 1626 if (fdc_debug) 1627 printf("fdc: %d -> threshold\n", thr); 1628 #endif 1629 fdconf(fdc); 1630 } 1631 fdc->sc_overruns = 0; 1632 } 1633 } 1634 fd->sc_blkno += fd->sc_nblks; 1635 fd->sc_skip += fd->sc_nbytes; 1636 fd->sc_bcount -= fd->sc_nbytes; 1637 if (finfo == NULL && fd->sc_bcount > 0) { 1638 bp->b_cylinder = fd->sc_blkno / fd->sc_type->seccyl; 1639 goto doseek; 1640 } 1641 fdfinish(fd, bp); 1642 goto loop; 1643 1644 case DORESET: 1645 /* try a reset, keep motor on */ 1646 fd_set_motor(fdc); 1647 delay(100); 1648 fdc->sc_nstat = 0; 1649 fdc->sc_itask = FDC_ITASK_SENSEI; 1650 fdc->sc_state = RESETCOMPLETE; 1651 timeout_add(&fdc->fdctimeout_to, hz / 2); 1652 fdc_reset(fdc); 1653 return (1); /* will return later */ 1654 1655 case RESETCOMPLETE: 1656 timeout_del(&fdc->fdctimeout_to); 1657 fdconf(fdc); 1658 1659 /* FALLTHROUGH */ 1660 case DORECAL: 1661 fdc->sc_state = RECALWAIT; 1662 fdc->sc_itask = FDC_ITASK_SENSEI; 1663 fdc->sc_nstat = 0; 1664 timeout_add_sec(&fdc->fdctimeout_to, 5); 1665 /* recalibrate function */ 1666 FDC_WRFIFO(fdc, NE7CMD_RECAL); 1667 FDC_WRFIFO(fdc, fd->sc_drive); 1668 return (1); /* will return later */ 1669 1670 case RECALWAIT: 1671 timeout_del(&fdc->fdctimeout_to); 1672 fdc->sc_state = RECALCOMPLETE; 1673 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1674 /* allow 1/30 second for heads to settle */ 1675 timeout_add(&fdc->fdcpseudointr_to, hz / 30); 1676 return (1); /* will return later */ 1677 } 1678 1679 case RECALCOMPLETE: 1680 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || cyl != 0) { 1681 #ifdef FD_DEBUG 1682 if (fdc_debug) 1683 fdcstatus(fdc, "recalibrate failed"); 1684 #endif 1685 fdcretry(fdc); 1686 goto loop; 1687 } 1688 fd->sc_cylin = 0; 1689 goto doseek; 1690 1691 case MOTORWAIT: 1692 if (fd->sc_flags & FD_MOTOR_WAIT) 1693 return (1); /* time's not up yet */ 1694 goto doseek; 1695 1696 default: 1697 fdcstatus(fdc, "stray interrupt"); 1698 return (1); 1699 } 1700 #ifdef DIAGNOSTIC 1701 panic("fdcintr: impossible"); 1702 #endif 1703 1704 xxx: 1705 /* 1706 * We get here if the chip locks up in FDC_WRFIFO() 1707 * Cancel any operation and schedule a reset 1708 */ 1709 timeout_del(&fdc->fdctimeout_to); 1710 fdcretry(fdc); 1711 fdc->sc_state = DORESET; 1712 goto loop; 1713 1714 #undef st0 1715 #undef st1 1716 #undef cyl 1717 } 1718 1719 void 1720 fdcretry(fdc) 1721 struct fdc_softc *fdc; 1722 { 1723 struct fd_softc *fd; 1724 struct buf *bp; 1725 int error = EIO; 1726 1727 fd = TAILQ_FIRST(&fdc->sc_drives); 1728 bp = fd->sc_q.b_actf; 1729 1730 fdc->sc_overruns = 0; 1731 if (fd->sc_opts & FDOPT_NORETRY) 1732 goto fail; 1733 1734 switch (fdc->sc_errors) { 1735 case 0: 1736 if (fdc->sc_nstat == 7 && 1737 (fdc->sc_status[0] & 0xd8) == 0x40 && 1738 (fdc->sc_status[1] & 0x2) == 0x2) { 1739 printf("%s: read-only medium\n", fd->sc_dv.dv_xname); 1740 error = EROFS; 1741 goto failsilent; 1742 } 1743 /* try again */ 1744 fdc->sc_state = 1745 (fdc->sc_flags & FDC_EIS) ? DOIO : DOSEEK; 1746 break; 1747 1748 case 1: case 2: case 3: 1749 /* didn't work; try recalibrating */ 1750 fdc->sc_state = DORECAL; 1751 break; 1752 1753 case 4: 1754 if (fdc->sc_nstat == 7 && 1755 fdc->sc_status[0] == 0 && 1756 fdc->sc_status[1] == 0 && 1757 fdc->sc_status[2] == 0) { 1758 /* 1759 * We've retried a few times and we've got 1760 * valid status and all three status bytes 1761 * are zero. Assume this condition is the 1762 * result of no disk loaded into the drive. 1763 */ 1764 printf("%s: no medium?\n", fd->sc_dv.dv_xname); 1765 error = ENODEV; 1766 goto failsilent; 1767 } 1768 1769 /* still no go; reset the bastard */ 1770 fdc->sc_state = DORESET; 1771 break; 1772 1773 default: 1774 fail: 1775 if ((fd->sc_opts & FDOPT_SILENT) == 0) { 1776 diskerr(bp, "fd", "hard error", LOG_PRINTF, 1777 fd->sc_skip / FD_BSIZE(fd), 1778 (struct disklabel *)NULL); 1779 printf("\n"); 1780 fdcstatus(fdc, "controller status"); 1781 } 1782 1783 failsilent: 1784 bp->b_flags |= B_ERROR; 1785 bp->b_error = error; 1786 fdfinish(fd, bp); 1787 } 1788 fdc->sc_errors++; 1789 } 1790 1791 daddr64_t 1792 fdsize(dev) 1793 dev_t dev; 1794 { 1795 1796 /* Swapping to floppies would not make sense. */ 1797 return (-1); 1798 } 1799 1800 int 1801 fddump(dev, blkno, va, size) 1802 dev_t dev; 1803 daddr64_t blkno; 1804 caddr_t va; 1805 size_t size; 1806 { 1807 1808 /* Not implemented. */ 1809 return (EINVAL); 1810 } 1811 1812 int 1813 fdioctl(dev, cmd, addr, flag, p) 1814 dev_t dev; 1815 u_long cmd; 1816 caddr_t addr; 1817 int flag; 1818 struct proc *p; 1819 { 1820 struct fd_softc *fd; 1821 struct fdc_softc *fdc; 1822 struct disklabel *lp; 1823 int unit; 1824 int error; 1825 #ifdef FD_DEBUG 1826 int i; 1827 #endif 1828 1829 unit = FDUNIT(dev); 1830 if (unit >= fd_cd.cd_ndevs) 1831 return (ENXIO); 1832 1833 fd = fd_cd.cd_devs[FDUNIT(dev)]; 1834 fdc = (struct fdc_softc *)fd->sc_dv.dv_parent; 1835 1836 switch (cmd) { 1837 case DIOCRLDINFO: 1838 lp = malloc(sizeof(*lp), M_TEMP, M_WAITOK); 1839 fdgetdisklabel(dev, fd, lp, 0); 1840 bcopy(lp, fd->sc_dk.dk_label, sizeof(*lp)); 1841 free(lp, M_TEMP); 1842 return 0; 1843 1844 case DIOCGPDINFO: 1845 fdgetdisklabel(dev, fd, (struct disklabel *)addr, 1); 1846 return 0; 1847 1848 case DIOCGDINFO: 1849 *(struct disklabel *)addr = *(fd->sc_dk.dk_label); 1850 return 0; 1851 1852 case DIOCGPART: 1853 ((struct partinfo *)addr)->disklab = fd->sc_dk.dk_label; 1854 ((struct partinfo *)addr)->part = 1855 &fd->sc_dk.dk_label->d_partitions[DISKPART(dev)]; 1856 return 0; 1857 1858 case DIOCWLABEL: 1859 if ((flag & FWRITE) == 0) 1860 return EBADF; 1861 /* XXX do something */ 1862 return (0); 1863 1864 case DIOCWDINFO: 1865 if ((flag & FWRITE) == 0) 1866 return (EBADF); 1867 1868 error = setdisklabel(fd->sc_dk.dk_label, 1869 (struct disklabel *)addr, 0); 1870 if (error) 1871 return (error); 1872 1873 error = writedisklabel(DISKLABELDEV(dev), fdstrategy, 1874 fd->sc_dk.dk_label); 1875 return (error); 1876 1877 case DIOCLOCK: 1878 /* 1879 * Nothing to do here, really. 1880 */ 1881 return (0); 1882 1883 case MTIOCTOP: 1884 if (((struct mtop *)addr)->mt_op != MTOFFL) 1885 return (EIO); 1886 /* FALLTHROUGH */ 1887 case DIOCEJECT: 1888 if (fdc->sc_flags & FDC_NOEJECT) 1889 return (ENODEV); 1890 fd_do_eject(fd); 1891 return (0); 1892 1893 case FD_FORM: 1894 if ((flag & FWRITE) == 0) 1895 return (EBADF); /* must be opened for writing */ 1896 else if (((struct fd_formb *)addr)->format_version != 1897 FD_FORMAT_VERSION) 1898 return (EINVAL);/* wrong version of formatting prog */ 1899 else 1900 return fdformat(dev, (struct fd_formb *)addr, p); 1901 break; 1902 1903 case FD_GTYPE: /* get drive options */ 1904 *(struct fd_type *)addr = *fd->sc_type; 1905 return (0); 1906 1907 case FD_GOPTS: /* get drive options */ 1908 *(int *)addr = fd->sc_opts; 1909 return (0); 1910 1911 case FD_SOPTS: /* set drive options */ 1912 fd->sc_opts = *(int *)addr; 1913 return (0); 1914 1915 #ifdef FD_DEBUG 1916 case _IO('f', 100): 1917 fdc_wrfifo(fdc, NE7CMD_DUMPREG); 1918 fdcresult(fdc); 1919 printf("fdc: dumpreg(%d regs): <", fdc->sc_nstat); 1920 for (i = 0; i < fdc->sc_nstat; i++) 1921 printf(" 0x%x", fdc->sc_status[i]); 1922 printf(">\n"); 1923 return (0); 1924 1925 case _IOW('f', 101, int): 1926 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1927 fdc->sc_cfg |= (*(int *)addr & CFG_THRHLD_MASK); 1928 fdconf(fdc); 1929 return (0); 1930 1931 case _IO('f', 102): 1932 fdc_wrfifo(fdc, NE7CMD_SENSEI); 1933 fdcresult(fdc); 1934 printf("fdc: sensei(%d regs): <", fdc->sc_nstat); 1935 for (i=0; i< fdc->sc_nstat; i++) 1936 printf(" 0x%x", fdc->sc_status[i]); 1937 printf(">\n"); 1938 return (0); 1939 #endif 1940 default: 1941 return (ENOTTY); 1942 } 1943 } 1944 1945 int 1946 fdformat(dev, finfo, p) 1947 dev_t dev; 1948 struct fd_formb *finfo; 1949 struct proc *p; 1950 { 1951 int rv = 0; 1952 struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; 1953 struct fd_type *type = fd->sc_type; 1954 struct buf *bp; 1955 1956 /* set up a buffer header for fdstrategy() */ 1957 bp = malloc(sizeof(*bp), M_TEMP, M_NOWAIT | M_ZERO); 1958 if (bp == NULL) 1959 return (ENOBUFS); 1960 1961 bp->b_flags = B_BUSY | B_PHYS | B_FORMAT | B_RAW; 1962 bp->b_proc = p; 1963 bp->b_dev = dev; 1964 1965 /* 1966 * Calculate a fake blkno, so fdstrategy() would initiate a 1967 * seek to the requested cylinder. 1968 */ 1969 bp->b_blkno = ((finfo->cyl * (type->sectrac * type->heads) 1970 + finfo->head * type->sectrac) * FD_BSIZE(fd)) 1971 / DEV_BSIZE; 1972 1973 bp->b_bcount = sizeof(struct fd_idfield_data) * finfo->fd_formb_nsecs; 1974 bp->b_data = (caddr_t)finfo; 1975 1976 #ifdef FD_DEBUG 1977 if (fdc_debug) { 1978 int i; 1979 1980 printf("fdformat: blkno 0x%llx count %ld\n", 1981 (unsigned long long)bp->b_blkno, bp->b_bcount); 1982 1983 printf("\tcyl:\t%d\n", finfo->cyl); 1984 printf("\thead:\t%d\n", finfo->head); 1985 printf("\tnsecs:\t%d\n", finfo->fd_formb_nsecs); 1986 printf("\tsshft:\t%d\n", finfo->fd_formb_secshift); 1987 printf("\tgaplen:\t%d\n", finfo->fd_formb_gaplen); 1988 printf("\ttrack data:"); 1989 for (i = 0; i < finfo->fd_formb_nsecs; i++) { 1990 printf(" [c%d h%d s%d]", 1991 finfo->fd_formb_cylno(i), 1992 finfo->fd_formb_headno(i), 1993 finfo->fd_formb_secno(i) ); 1994 if (finfo->fd_formb_secsize(i) != 2) 1995 printf("<sz:%d>", finfo->fd_formb_secsize(i)); 1996 } 1997 printf("\n"); 1998 } 1999 #endif 2000 2001 /* now do the format */ 2002 fdstrategy(bp); 2003 2004 /* ...and wait for it to complete */ 2005 rv = biowait(bp); 2006 free(bp, M_TEMP); 2007 return (rv); 2008 } 2009 2010 void 2011 fdgetdisklabel(dev_t dev, struct fd_softc *fd, struct disklabel *lp, 2012 int spoofonly) 2013 { 2014 char *errstring; 2015 2016 bzero(lp, sizeof(struct disklabel)); 2017 2018 lp->d_type = DTYPE_FLOPPY; 2019 lp->d_secsize = FD_BSIZE(fd); 2020 lp->d_secpercyl = fd->sc_type->seccyl; 2021 lp->d_nsectors = fd->sc_type->sectrac; 2022 lp->d_ncylinders = fd->sc_type->tracks; 2023 lp->d_ntracks = fd->sc_type->heads; /* Go figure... */ 2024 DL_SETDSIZE(lp, (daddr64_t)lp->d_secpercyl * lp->d_ncylinders); 2025 lp->d_rpm = 300; /* XXX like it matters... */ 2026 2027 strncpy(lp->d_typename, "floppy disk", sizeof(lp->d_typename)); 2028 strncpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); 2029 lp->d_interleave = 1; 2030 lp->d_version = 1; 2031 2032 lp->d_magic = DISKMAGIC; 2033 lp->d_magic2 = DISKMAGIC; 2034 lp->d_checksum = dkcksum(lp); 2035 2036 /* 2037 * Call the generic disklabel extraction routine. If there's 2038 * not a label there, fake it. 2039 */ 2040 errstring = readdisklabel(DISKLABELDEV(dev), fdstrategy, lp, spoofonly); 2041 if (errstring) { 2042 /*printf("%s: %s\n", fd->sc_dv.dv_xname, errstring);*/ 2043 } 2044 } 2045 2046 void 2047 fd_do_eject(fd) 2048 struct fd_softc *fd; 2049 { 2050 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 2051 bus_space_tag_t t = fdc->sc_bustag; 2052 bus_space_handle_t h = fdc->sc_handle; 2053 u_int8_t dor = FDO_FRST | FDO_FDMAEN | FDO_MOEN(0); 2054 2055 bus_space_write_1(t, h, FDREG77_DOR, dor | FDO_EJ); 2056 delay(10); 2057 bus_space_write_1(t, h, FDREG77_DOR, FDO_FRST | FDO_DS); 2058 } 2059