1 /* $OpenBSD: fd.c,v 1.46 2016/06/07 06:37:33 dlg 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,0x6c,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 daddr_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 TAILQ_ENTRY(fd_softc) sc_drivechain; 269 int sc_ops; /* I/O ops since last switch */ 270 struct bufq sc_bufq; /* pending I/O requests */ 271 struct buf *sc_bp; /* current I/O */ 272 }; 273 274 /* floppy driver configuration */ 275 int fdmatch(struct device *, void *, void *); 276 void fdattach(struct device *, struct device *, void *); 277 int fdactivate(struct device *, int); 278 279 struct cfattach fd_ca = { 280 sizeof(struct fd_softc), fdmatch, fdattach, 281 NULL, fdactivate 282 }; 283 284 struct cfdriver fd_cd = { 285 NULL, "fd", DV_DISK 286 }; 287 288 int fdgetdisklabel(dev_t, struct fd_softc *, struct disklabel *, int); 289 int fd_get_parms(struct fd_softc *); 290 void fdstrategy(struct buf *); 291 void fdstart(struct fd_softc *); 292 int fdprint(void *, const char *); 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 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 bufq_init(&fd->sc_bufq, BUFQ_DEFAULT); 673 disk_attach(&fd->sc_dv, &fd->sc_dk); 674 } 675 676 int 677 fdactivate(struct device *self, int act) 678 { 679 int ret = 0; 680 681 switch (act) { 682 case DVACT_POWERDOWN: 683 /* Make sure the drive motor gets turned off at shutdown time. */ 684 fd_motor_off(self); 685 break; 686 } 687 688 return (ret); 689 } 690 691 __inline struct fd_type * 692 fd_dev_to_type(fd, dev) 693 struct fd_softc *fd; 694 dev_t dev; 695 { 696 int type = FDTYPE(dev); 697 698 if (type > (sizeof(fd_types) / sizeof(fd_types[0]))) 699 return (NULL); 700 return (type ? &fd_types[type - 1] : fd->sc_deftype); 701 } 702 703 void 704 fdstrategy(bp) 705 register struct buf *bp; /* IO operation to perform */ 706 { 707 struct fd_softc *fd; 708 int unit = FDUNIT(bp->b_dev); 709 int sz; 710 int s; 711 712 /* Valid unit, controller, and request? */ 713 if (unit >= fd_cd.cd_ndevs || 714 (fd = fd_cd.cd_devs[unit]) == 0 || 715 bp->b_blkno < 0 || 716 (((bp->b_bcount % FD_BSIZE(fd)) != 0 || 717 (bp->b_blkno * DEV_BSIZE) % FD_BSIZE(fd) != 0) && 718 (bp->b_flags & B_FORMAT) == 0)) { 719 bp->b_error = EINVAL; 720 goto bad; 721 } 722 723 /* If it's a null transfer, return immediately. */ 724 if (bp->b_bcount == 0) 725 goto done; 726 727 bp->b_resid = bp->b_bcount; 728 sz = howmany(bp->b_bcount, DEV_BSIZE); 729 730 if (bp->b_blkno + sz > (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd)) { 731 sz = (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd) 732 - bp->b_blkno; 733 if (sz == 0) { 734 /* If exactly at end of disk, return EOF. */ 735 goto done; 736 } 737 if (sz < 0) { 738 /* If past end of disk, return EINVAL. */ 739 bp->b_error = EINVAL; 740 goto bad; 741 } 742 /* Otherwise, truncate request. */ 743 bp->b_bcount = sz << DEV_BSHIFT; 744 } 745 746 #ifdef FD_DEBUG 747 if (fdc_debug > 1) 748 printf("fdstrategy: b_blkno %lld b_bcount %d blkno %lld\n", 749 (long long)bp->b_blkno, bp->b_bcount, 750 (long long)fd->sc_blkno); 751 #endif 752 753 /* Queue transfer */ 754 bufq_queue(&fd->sc_bufq, bp); 755 756 /* Queue transfer on drive, activate drive and controller if idle. */ 757 s = splbio(); 758 timeout_del(&fd->sc_motoroff_to); /* a good idea */ 759 if (fd->sc_bp == NULL) 760 fdstart(fd); 761 #ifdef DIAGNOSTIC 762 else { 763 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 764 if (fdc->sc_state == DEVIDLE) { 765 printf("fdstrategy: controller inactive\n"); 766 fdcstart(fdc); 767 } 768 } 769 #endif 770 splx(s); 771 return; 772 773 bad: 774 bp->b_flags |= B_ERROR; 775 done: 776 /* Toss transfer; we're done early. */ 777 s = splbio(); 778 biodone(bp); 779 splx(s); 780 } 781 782 void 783 fdstart(fd) 784 struct fd_softc *fd; 785 { 786 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 787 int active = !TAILQ_EMPTY(&fdc->sc_drives); 788 789 /* Link into controller queue. */ 790 fd->sc_bp = bufq_dequeue(&fd->sc_bufq); 791 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 792 793 /* If controller not already active, start it. */ 794 if (!active) 795 fdcstart(fdc); 796 } 797 798 void 799 fdfinish(fd, bp) 800 struct fd_softc *fd; 801 struct buf *bp; 802 { 803 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 804 805 fd->sc_skip = 0; 806 fd->sc_bp = bufq_dequeue(&fd->sc_bufq); 807 808 /* 809 * Move this drive to the end of the queue to give others a `fair' 810 * chance. We only force a switch if N operations are completed while 811 * another drive is waiting to be serviced, since there is a long motor 812 * startup delay whenever we switch. 813 */ 814 if (TAILQ_NEXT(fd, sc_drivechain) != NULL && ++fd->sc_ops >= 8) { 815 fd->sc_ops = 0; 816 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 817 if (fd->sc_bp != NULL) 818 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 819 } 820 821 biodone(bp); 822 /* turn off motor 5s from now */ 823 timeout_add_sec(&fd->sc_motoroff_to, 5); 824 fdc->sc_state = DEVIDLE; 825 } 826 827 void 828 fdc_reset(fdc) 829 struct fdc_softc *fdc; 830 { 831 bus_space_tag_t t = fdc->sc_bustag; 832 bus_space_handle_t h = fdc->sc_handle; 833 834 bus_space_write_1(t, h, FDREG77_DOR, FDO_FDMAEN | FDO_MOEN(0)); 835 836 bus_space_write_1(t, h, FDREG77_DRS, DRS_RESET); 837 delay(10); 838 bus_space_write_1(t, h, FDREG77_DRS, 0); 839 840 bus_space_write_1(t, h, FDREG77_DOR, 841 FDO_FRST | FDO_FDMAEN | FDO_DS); 842 #ifdef FD_DEBUG 843 if (fdc_debug) 844 printf("fdc reset\n"); 845 #endif 846 } 847 848 void 849 fd_set_motor(fdc) 850 struct fdc_softc *fdc; 851 { 852 struct fd_softc *fd; 853 u_char status; 854 int n; 855 856 status = FDO_FRST | FDO_FDMAEN; 857 if ((fd = TAILQ_FIRST(&fdc->sc_drives)) != NULL) 858 status |= fd->sc_drive; 859 860 for (n = 0; n < 4; n++) 861 if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) 862 status |= FDO_MOEN(n); 863 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 864 FDREG77_DOR, status); 865 } 866 867 void 868 fd_motor_off(arg) 869 void *arg; 870 { 871 struct fd_softc *fd = arg; 872 int s; 873 874 s = splbio(); 875 fd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 876 fd_set_motor((struct fdc_softc *)fd->sc_dv.dv_parent); 877 splx(s); 878 } 879 880 void 881 fd_motor_on(arg) 882 void *arg; 883 { 884 struct fd_softc *fd = arg; 885 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 886 int s; 887 888 s = splbio(); 889 fd->sc_flags &= ~FD_MOTOR_WAIT; 890 if (fd == TAILQ_FIRST(&fdc->sc_drives) && fdc->sc_state == MOTORWAIT) 891 (void) fdcstate(fdc); 892 splx(s); 893 } 894 895 /* 896 * Get status bytes off the FDC after a command has finished 897 * Returns the number of status bytes read; -1 on error. 898 * The return value is also stored in `sc_nstat'. 899 */ 900 int 901 fdcresult(fdc) 902 struct fdc_softc *fdc; 903 { 904 bus_space_tag_t t = fdc->sc_bustag; 905 bus_space_handle_t h = fdc->sc_handle; 906 int j, n = 0; 907 908 for (j = 100000; j; j--) { 909 u_int8_t v = bus_space_read_1(t, h, FDREG77_MSR); 910 v &= (NE7_DIO | NE7_RQM | NE7_CB); 911 if (v == NE7_RQM) 912 return (fdc->sc_nstat = n); 913 if (v == (NE7_DIO | NE7_RQM | NE7_CB)) { 914 if (n >= sizeof(fdc->sc_status)) { 915 log(LOG_ERR, "fdcresult: overrun\n"); 916 return (-1); 917 } 918 fdc->sc_status[n++] = 919 bus_space_read_1(t, h, FDREG77_FIFO); 920 } else 921 delay(1); 922 } 923 924 log(LOG_ERR, "fdcresult: timeout\n"); 925 return (fdc->sc_nstat = -1); 926 } 927 928 /* 929 * Write a command byte to the FDC. 930 * Returns 0 on success; -1 on failure (i.e. timeout) 931 */ 932 int 933 fdc_wrfifo(fdc, x) 934 struct fdc_softc *fdc; 935 u_int8_t x; 936 { 937 bus_space_tag_t t = fdc->sc_bustag; 938 bus_space_handle_t h = fdc->sc_handle; 939 int i; 940 941 for (i = 100000; i-- != 0;) { 942 u_int8_t v = bus_space_read_1(t, h, FDREG77_MSR); 943 if ((v & (NE7_DIO|NE7_RQM)) == NE7_RQM) { 944 /* The chip is ready */ 945 bus_space_write_1(t, h, FDREG77_FIFO, x); 946 return (0); 947 } 948 delay(1); 949 } 950 return (-1); 951 } 952 953 int 954 fdc_diskchange(fdc) 955 struct fdc_softc *fdc; 956 { 957 bus_space_tag_t t = fdc->sc_bustag; 958 bus_space_handle_t h = fdc->sc_handle; 959 960 u_int8_t v = bus_space_read_1(t, h, FDREG77_DIR); 961 return ((v & FDI_DCHG) != 0); 962 } 963 964 int 965 fdopen(dev, flags, fmt, p) 966 dev_t dev; 967 int flags, fmt; 968 struct proc *p; 969 { 970 int unit, pmask; 971 struct fd_softc *fd; 972 struct fd_type *type; 973 974 unit = FDUNIT(dev); 975 if (unit >= fd_cd.cd_ndevs) 976 return (ENXIO); 977 fd = fd_cd.cd_devs[unit]; 978 if (fd == NULL) 979 return (ENXIO); 980 type = fd_dev_to_type(fd, dev); 981 if (type == NULL) 982 return (ENXIO); 983 984 if ((fd->sc_flags & FD_OPEN) != 0 && 985 fd->sc_type != type) 986 return (EBUSY); 987 988 fd->sc_type = type; 989 fd->sc_cylin = -1; 990 fd->sc_flags |= FD_OPEN; 991 992 /* 993 * Only update the disklabel if we're not open anywhere else. 994 */ 995 if (fd->sc_dk.dk_openmask == 0) 996 fdgetdisklabel(dev, fd, fd->sc_dk.dk_label, 0); 997 998 pmask = (1 << DISKPART(dev)); 999 1000 switch (fmt) { 1001 case S_IFCHR: 1002 fd->sc_dk.dk_copenmask |= pmask; 1003 break; 1004 1005 case S_IFBLK: 1006 fd->sc_dk.dk_bopenmask |= pmask; 1007 break; 1008 } 1009 fd->sc_dk.dk_openmask = 1010 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1011 1012 return (0); 1013 } 1014 1015 int 1016 fdclose(dev, flags, fmt, p) 1017 dev_t dev; 1018 int flags, fmt; 1019 struct proc *p; 1020 { 1021 struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; 1022 int pmask = (1 << DISKPART(dev)); 1023 1024 fd->sc_flags &= ~FD_OPEN; 1025 fd->sc_opts &= ~(FDOPT_NORETRY|FDOPT_SILENT); 1026 1027 switch (fmt) { 1028 case S_IFCHR: 1029 fd->sc_dk.dk_copenmask &= ~pmask; 1030 break; 1031 1032 case S_IFBLK: 1033 fd->sc_dk.dk_bopenmask &= ~pmask; 1034 break; 1035 } 1036 fd->sc_dk.dk_openmask = 1037 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1038 1039 return (0); 1040 } 1041 1042 int 1043 fdread(dev, uio, flag) 1044 dev_t dev; 1045 struct uio *uio; 1046 int flag; 1047 { 1048 1049 return (physio(fdstrategy, dev, B_READ, minphys, uio)); 1050 } 1051 1052 int 1053 fdwrite(dev, uio, flag) 1054 dev_t dev; 1055 struct uio *uio; 1056 int flag; 1057 { 1058 1059 return (physio(fdstrategy, dev, B_WRITE, minphys, uio)); 1060 } 1061 1062 void 1063 fdcstart(fdc) 1064 struct fdc_softc *fdc; 1065 { 1066 1067 #ifdef DIAGNOSTIC 1068 /* only got here if controller's drive queue was inactive; should 1069 be in idle state */ 1070 if (fdc->sc_state != DEVIDLE) { 1071 printf("fdcstart: not idle\n"); 1072 return; 1073 } 1074 #endif 1075 (void) fdcstate(fdc); 1076 } 1077 1078 void 1079 fdcstatus(fdc, s) 1080 struct fdc_softc *fdc; 1081 char *s; 1082 { 1083 struct fd_softc *fd = TAILQ_FIRST(&fdc->sc_drives); 1084 int n; 1085 1086 /* Just print last status */ 1087 n = fdc->sc_nstat; 1088 1089 #if 0 1090 if (n == 0) { 1091 fdc_wrfifo(fdc, NE7CMD_SENSEI); 1092 (void) fdcresult(fdc); 1093 n = 2; 1094 } 1095 #endif 1096 1097 printf("%s: %s: state %d", 1098 fd ? fd->sc_dv.dv_xname : "fdc", s, fdc->sc_state); 1099 1100 switch (n) { 1101 case 0: 1102 printf("\n"); 1103 break; 1104 case 2: 1105 printf(" (st0 %b cyl %d)\n", 1106 fdc->sc_status[0], NE7_ST0BITS, 1107 fdc->sc_status[1]); 1108 break; 1109 case 7: 1110 printf(" (st0 %b st1 %b st2 %b cyl %d head %d sec %d)\n", 1111 fdc->sc_status[0], NE7_ST0BITS, 1112 fdc->sc_status[1], NE7_ST1BITS, 1113 fdc->sc_status[2], NE7_ST2BITS, 1114 fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); 1115 break; 1116 #ifdef DIAGNOSTIC 1117 default: 1118 printf(" fdcstatus: weird size: %d\n", n); 1119 break; 1120 #endif 1121 } 1122 } 1123 1124 void 1125 fdctimeout(arg) 1126 void *arg; 1127 { 1128 struct fdc_softc *fdc = arg; 1129 struct fd_softc *fd; 1130 int s; 1131 1132 s = splbio(); 1133 fd = TAILQ_FIRST(&fdc->sc_drives); 1134 if (fd == NULL) { 1135 printf("%s: timeout but no I/O pending: state %d, istatus=%d\n", 1136 fdc->sc_dev.dv_xname, fdc->sc_state, fdc->sc_istatus); 1137 fdc->sc_state = DEVIDLE; 1138 goto out; 1139 } 1140 1141 if (fd->sc_bp != NULL) 1142 fdc->sc_state++; 1143 else 1144 fdc->sc_state = DEVIDLE; 1145 1146 (void) fdcstate(fdc); 1147 out: 1148 splx(s); 1149 1150 } 1151 1152 void 1153 fdcpseudointr(arg) 1154 void *arg; 1155 { 1156 struct fdc_softc *fdc = arg; 1157 int s; 1158 1159 /* Just ensure it has the right spl. */ 1160 s = splbio(); 1161 (void) fdcstate(fdc); 1162 splx(s); 1163 } 1164 1165 1166 /* 1167 * Hardware interrupt entry point. 1168 * Unfortunately, we have no reliable way to determine that the 1169 * interrupt really came from the floppy controller; just hope 1170 * that the other devices that share this interrupt can do better.. 1171 */ 1172 int 1173 fdchwintr(arg) 1174 void *arg; 1175 { 1176 struct fdc_softc *fdc = arg; 1177 bus_space_tag_t t = fdc->sc_bustag; 1178 bus_space_handle_t h = fdc->sc_handle; 1179 1180 switch (fdc->sc_itask) { 1181 case FDC_ITASK_NONE: 1182 return (0); 1183 case FDC_ITASK_SENSEI: 1184 if (fdc_wrfifo(fdc, NE7CMD_SENSEI) != 0 || fdcresult(fdc) == -1) 1185 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1186 else 1187 fdc->sc_istatus = FDC_ISTATUS_DONE; 1188 softintr_schedule(fdc->sc_sicookie); 1189 return (1); 1190 case FDC_ITASK_RESULT: 1191 if (fdcresult(fdc) == -1) 1192 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1193 else 1194 fdc->sc_istatus = FDC_ISTATUS_DONE; 1195 softintr_schedule(fdc->sc_sicookie); 1196 return (1); 1197 case FDC_ITASK_DMA: 1198 /* Proceed with pseudo-DMA below */ 1199 break; 1200 default: 1201 printf("fdc: stray hard interrupt: itask=%d\n", fdc->sc_itask); 1202 fdc->sc_istatus = FDC_ISTATUS_SPURIOUS; 1203 softintr_schedule(fdc->sc_sicookie); 1204 return (1); 1205 } 1206 1207 /* 1208 * Pseudo DMA in progress 1209 */ 1210 for (;;) { 1211 u_int8_t msr; 1212 1213 msr = bus_space_read_1(t, h, FDREG77_MSR); 1214 1215 if ((msr & NE7_RQM) == 0) 1216 /* That's all this round */ 1217 break; 1218 1219 if ((msr & NE7_NDM) == 0) { 1220 fdcresult(fdc); 1221 fdc->sc_istatus = FDC_ISTATUS_DONE; 1222 softintr_schedule(fdc->sc_sicookie); 1223 #ifdef FD_DEBUG 1224 if (fdc_debug > 1) 1225 printf("fdc: overrun: msr = %x, tc = %d\n", 1226 msr, fdc->sc_tc); 1227 #endif 1228 break; 1229 } 1230 1231 /* Another byte can be transferred */ 1232 if ((msr & NE7_DIO) != 0) 1233 *fdc->sc_data = 1234 bus_space_read_1(t, h, FDREG77_FIFO); 1235 else 1236 bus_space_write_1(t, h, FDREG77_FIFO, 1237 *fdc->sc_data); 1238 1239 fdc->sc_data++; 1240 if (--fdc->sc_tc == 0) { 1241 fdc->sc_istatus = FDC_ISTATUS_DONE; 1242 FTC_FLIP; 1243 fdcresult(fdc); 1244 softintr_schedule(fdc->sc_sicookie); 1245 break; 1246 } 1247 } 1248 return (1); 1249 } 1250 1251 void 1252 fdcswintr(arg) 1253 void *arg; 1254 { 1255 struct fdc_softc *fdc = arg; 1256 int s; 1257 1258 if (fdc->sc_istatus == FDC_ISTATUS_NONE) 1259 /* This (software) interrupt is not for us */ 1260 return; 1261 1262 switch (fdc->sc_istatus) { 1263 case FDC_ISTATUS_ERROR: 1264 printf("fdc: ierror status: state %d\n", fdc->sc_state); 1265 break; 1266 case FDC_ISTATUS_SPURIOUS: 1267 printf("fdc: spurious interrupt: state %d\n", fdc->sc_state); 1268 break; 1269 } 1270 1271 s = splbio(); 1272 fdcstate(fdc); 1273 splx(s); 1274 return; 1275 } 1276 1277 int 1278 fdcstate(fdc) 1279 struct fdc_softc *fdc; 1280 { 1281 #define st0 fdc->sc_status[0] 1282 #define st1 fdc->sc_status[1] 1283 #define cyl fdc->sc_status[1] 1284 #define FDC_WRFIFO(fdc, c) \ 1285 do { \ 1286 if (fdc_wrfifo(fdc, (c))) { \ 1287 goto xxx; \ 1288 } \ 1289 } while(0) 1290 1291 struct fd_softc *fd; 1292 struct buf *bp; 1293 int read, head, sec, nblks, cylin; 1294 struct fd_type *type; 1295 struct fd_formb *finfo = NULL; 1296 1297 if (fdc->sc_istatus == FDC_ISTATUS_ERROR) { 1298 /* Prevent loop if the reset sequence produces errors */ 1299 if (fdc->sc_state != RESETCOMPLETE && 1300 fdc->sc_state != RECALWAIT && 1301 fdc->sc_state != RECALCOMPLETE) 1302 fdc->sc_state = DORESET; 1303 } 1304 1305 /* Clear I task/status field */ 1306 fdc->sc_istatus = FDC_ISTATUS_NONE; 1307 fdc->sc_itask = FDC_ITASK_NONE; 1308 1309 loop: 1310 /* Is there a drive for the controller to do a transfer with? */ 1311 fd = TAILQ_FIRST(&fdc->sc_drives); 1312 if (fd == NULL) { 1313 fdc->sc_state = DEVIDLE; 1314 return (0); 1315 } 1316 1317 /* Is there a transfer to this drive? If not, deactivate drive. */ 1318 bp = fd->sc_bp; 1319 if (bp == NULL) { 1320 fd->sc_ops = 0; 1321 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1322 goto loop; 1323 } 1324 1325 if (bp->b_flags & B_FORMAT) 1326 finfo = (struct fd_formb *)bp->b_data; 1327 1328 cylin = ((bp->b_blkno * DEV_BSIZE) - (bp->b_bcount - bp->b_resid)) / 1329 (FD_BSIZE(fd) * fd->sc_type->seccyl); 1330 1331 switch (fdc->sc_state) { 1332 case DEVIDLE: 1333 fdc->sc_errors = 0; 1334 fd->sc_skip = 0; 1335 fd->sc_bcount = bp->b_bcount; 1336 fd->sc_blkno = (bp->b_blkno * DEV_BSIZE) / FD_BSIZE(fd); 1337 timeout_del(&fd->sc_motoroff_to); 1338 if ((fd->sc_flags & FD_MOTOR_WAIT) != 0) { 1339 fdc->sc_state = MOTORWAIT; 1340 return (1); 1341 } 1342 if ((fd->sc_flags & FD_MOTOR) == 0) { 1343 /* Turn on the motor, being careful about pairing. */ 1344 struct fd_softc *ofd = fdc->sc_fd[fd->sc_drive ^ 1]; 1345 if (ofd && ofd->sc_flags & FD_MOTOR) { 1346 timeout_del(&ofd->sc_motoroff_to); 1347 ofd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1348 } 1349 fd->sc_flags |= FD_MOTOR | FD_MOTOR_WAIT; 1350 fd_set_motor(fdc); 1351 fdc->sc_state = MOTORWAIT; 1352 if ((fdc->sc_flags & FDC_NEEDMOTORWAIT) != 0) { /*XXX*/ 1353 /* Allow .25s for motor to stabilize. */ 1354 timeout_add_msec(&fd->sc_motoron_to, 250); 1355 } else { 1356 fd->sc_flags &= ~FD_MOTOR_WAIT; 1357 goto loop; 1358 } 1359 return (1); 1360 } 1361 /* Make sure the right drive is selected. */ 1362 fd_set_motor(fdc); 1363 1364 if (fdc_diskchange(fdc)) 1365 goto dodskchg; 1366 1367 /*FALLTHROUGH*/ 1368 case DOSEEK: 1369 doseek: 1370 if ((fdc->sc_flags & FDC_EIS) && 1371 (bp->b_flags & B_FORMAT) == 0) { 1372 fd->sc_cylin = cylin; 1373 /* We use implied seek */ 1374 goto doio; 1375 } 1376 1377 if (fd->sc_cylin == cylin) 1378 goto doio; 1379 1380 fd->sc_cylin = -1; 1381 fdc->sc_state = SEEKWAIT; 1382 fdc->sc_nstat = 0; 1383 1384 fd->sc_dk.dk_seek++; 1385 1386 disk_busy(&fd->sc_dk); 1387 timeout_add_sec(&fdc->fdctimeout_to, 4); 1388 1389 /* specify command */ 1390 FDC_WRFIFO(fdc, NE7CMD_SPECIFY); 1391 FDC_WRFIFO(fdc, fd->sc_type->steprate); 1392 /* XXX head load time == 6ms */ 1393 FDC_WRFIFO(fdc, 6 | NE7_SPECIFY_NODMA); 1394 1395 fdc->sc_itask = FDC_ITASK_SENSEI; 1396 /* seek function */ 1397 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1398 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1399 FDC_WRFIFO(fdc, cylin * fd->sc_type->step); 1400 return (1); 1401 1402 case DODSKCHG: 1403 dodskchg: 1404 /* 1405 * Disk change: force a seek operation by going to cyl 1 1406 * followed by a recalibrate. 1407 */ 1408 disk_busy(&fd->sc_dk); 1409 timeout_add_sec(&fdc->fdctimeout_to, 4); 1410 fd->sc_cylin = -1; 1411 fdc->sc_nstat = 0; 1412 fdc->sc_state = DSKCHGWAIT; 1413 1414 fdc->sc_itask = FDC_ITASK_SENSEI; 1415 /* seek function */ 1416 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1417 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1418 FDC_WRFIFO(fdc, 1 * fd->sc_type->step); 1419 return (1); 1420 1421 case DSKCHGWAIT: 1422 timeout_del(&fdc->fdctimeout_to); 1423 disk_unbusy(&fd->sc_dk, 0, 0); 1424 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1425 cyl != 1 * fd->sc_type->step) { 1426 fdcstatus(fdc, "dskchg seek failed"); 1427 fdc->sc_state = DORESET; 1428 } else 1429 fdc->sc_state = DORECAL; 1430 1431 if (fdc_diskchange(fdc)) { 1432 printf("%s: cannot clear disk change status\n", 1433 fdc->sc_dev.dv_xname); 1434 fdc->sc_state = DORESET; 1435 } 1436 goto loop; 1437 1438 case DOIO: 1439 doio: 1440 if (finfo != NULL) 1441 fd->sc_skip = (char *)&(finfo->fd_formb_cylno(0)) - 1442 (char *)finfo; 1443 type = fd->sc_type; 1444 sec = fd->sc_blkno % type->seccyl; 1445 nblks = type->seccyl - sec; 1446 nblks = min(nblks, fd->sc_bcount / FD_BSIZE(fd)); 1447 nblks = min(nblks, FDC_MAXIOSIZE / FD_BSIZE(fd)); 1448 fd->sc_nblks = nblks; 1449 fd->sc_nbytes = finfo ? bp->b_bcount : nblks * FD_BSIZE(fd); 1450 head = sec / type->sectrac; 1451 sec -= head * type->sectrac; 1452 #ifdef DIAGNOSTIC 1453 { 1454 daddr_t block; 1455 1456 block = (fd->sc_cylin * type->heads + head) * 1457 type->sectrac + sec; 1458 if (block != fd->sc_blkno) { 1459 printf("fdcintr: block %lld != blkno %lld\n", 1460 (long long)block, (long long)fd->sc_blkno); 1461 #if defined(FD_DEBUG) && defined(DDB) 1462 Debugger(); 1463 #endif 1464 } 1465 } 1466 #endif 1467 read = bp->b_flags & B_READ; 1468 1469 /* Setup for pseudo DMA */ 1470 fdc->sc_data = bp->b_data + fd->sc_skip; 1471 fdc->sc_tc = fd->sc_nbytes; 1472 1473 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1474 FDREG77_DRS, type->rate); 1475 #ifdef FD_DEBUG 1476 if (fdc_debug > 1) 1477 printf("fdcstate: doio: %s drive %d " 1478 "track %d head %d sec %d nblks %d\n", 1479 finfo ? "format" : 1480 (read ? "read" : "write"), 1481 fd->sc_drive, fd->sc_cylin, head, sec, nblks); 1482 #endif 1483 fdc->sc_state = IOCOMPLETE; 1484 fdc->sc_itask = FDC_ITASK_DMA; 1485 fdc->sc_nstat = 0; 1486 1487 disk_busy(&fd->sc_dk); 1488 1489 /* allow 3 seconds for operation */ 1490 timeout_add_sec(&fdc->fdctimeout_to, 3); 1491 1492 if (finfo != NULL) { 1493 /* formatting */ 1494 FDC_WRFIFO(fdc, NE7CMD_FORMAT); 1495 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1496 FDC_WRFIFO(fdc, finfo->fd_formb_secshift); 1497 FDC_WRFIFO(fdc, finfo->fd_formb_nsecs); 1498 FDC_WRFIFO(fdc, finfo->fd_formb_gaplen); 1499 FDC_WRFIFO(fdc, finfo->fd_formb_fillbyte); 1500 } else { 1501 if (read) 1502 FDC_WRFIFO(fdc, NE7CMD_READ); 1503 else 1504 FDC_WRFIFO(fdc, NE7CMD_WRITE); 1505 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1506 FDC_WRFIFO(fdc, fd->sc_cylin); /*track*/ 1507 FDC_WRFIFO(fdc, head); 1508 FDC_WRFIFO(fdc, sec + 1); /*sector+1*/ 1509 FDC_WRFIFO(fdc, type->secsize); /*sector size*/ 1510 FDC_WRFIFO(fdc, type->sectrac); /*secs/track*/ 1511 FDC_WRFIFO(fdc, type->gap1); /*gap1 size*/ 1512 FDC_WRFIFO(fdc, type->datalen); /*data length*/ 1513 } 1514 1515 return (1); /* will return later */ 1516 1517 case SEEKWAIT: 1518 timeout_del(&fdc->fdctimeout_to); 1519 fdc->sc_state = SEEKCOMPLETE; 1520 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1521 /* allow 1/50 second for heads to settle */ 1522 timeout_add_msec(&fdc->fdcpseudointr_to, 20); 1523 return (1); /* will return later */ 1524 } 1525 /*FALLTHROUGH*/ 1526 case SEEKCOMPLETE: 1527 /* no data on seek */ 1528 disk_unbusy(&fd->sc_dk, 0, 0); 1529 1530 /* Make sure seek really happened. */ 1531 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1532 cyl != cylin * fd->sc_type->step) { 1533 #ifdef FD_DEBUG 1534 if (fdc_debug) 1535 fdcstatus(fdc, "seek failed"); 1536 #endif 1537 fdcretry(fdc); 1538 goto loop; 1539 } 1540 fd->sc_cylin = cylin; 1541 goto doio; 1542 1543 case IOTIMEDOUT: 1544 /* 1545 * Try to abort the I/O operation without resetting 1546 * the chip first. Poke TC and arrange to pick up 1547 * the timed out I/O command's status. 1548 */ 1549 fdc->sc_itask = FDC_ITASK_RESULT; 1550 fdc->sc_state = IOCLEANUPWAIT; 1551 fdc->sc_nstat = 0; 1552 /* 1/10 second should be enough */ 1553 timeout_add_msec(&fdc->fdctimeout_to, 100); 1554 return (1); 1555 1556 case IOCLEANUPTIMEDOUT: 1557 case SEEKTIMEDOUT: 1558 case RECALTIMEDOUT: 1559 case RESETTIMEDOUT: 1560 case DSKCHGTIMEDOUT: 1561 fdcstatus(fdc, "timeout"); 1562 1563 /* All other timeouts always roll through to a chip reset */ 1564 fdcretry(fdc); 1565 1566 /* Force reset, no matter what fdcretry() says */ 1567 fdc->sc_state = DORESET; 1568 goto loop; 1569 1570 case IOCLEANUPWAIT: /* IO FAILED, cleanup succeeded */ 1571 timeout_del(&fdc->fdctimeout_to); 1572 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1573 (bp->b_flags & B_READ)); 1574 fdcretry(fdc); 1575 goto loop; 1576 1577 case IOCOMPLETE: /* IO DONE, post-analyze */ 1578 timeout_del(&fdc->fdctimeout_to); 1579 1580 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1581 (bp->b_flags & B_READ)); 1582 1583 if (fdc->sc_nstat != 7 || st1 != 0 || 1584 ((st0 & 0xf8) != 0 && 1585 ((st0 & 0xf8) != 0x20 || (fdc->sc_cfg & CFG_EIS) == 0))) { 1586 #ifdef FD_DEBUG 1587 if (fdc_debug) { 1588 fdcstatus(fdc, 1589 bp->b_flags & B_READ 1590 ? "read failed" : "write failed"); 1591 printf("blkno %lld nblks %d nstat %d tc %d\n", 1592 (long long)fd->sc_blkno, fd->sc_nblks, 1593 fdc->sc_nstat, fdc->sc_tc); 1594 } 1595 #endif 1596 if (fdc->sc_nstat == 7 && 1597 (st1 & ST1_OVERRUN) == ST1_OVERRUN) { 1598 1599 /* 1600 * Silently retry overruns if no other 1601 * error bit is set. Adjust threshold. 1602 */ 1603 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1604 if (thr < 15) { 1605 thr++; 1606 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1607 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1608 #ifdef FD_DEBUG 1609 if (fdc_debug) 1610 printf("fdc: %d -> threshold\n", thr); 1611 #endif 1612 fdconf(fdc); 1613 fdc->sc_overruns = 0; 1614 } 1615 if (++fdc->sc_overruns < 3) { 1616 fdc->sc_state = DOIO; 1617 goto loop; 1618 } 1619 } 1620 fdcretry(fdc); 1621 goto loop; 1622 } 1623 if (fdc->sc_errors) { 1624 diskerr(bp, "fd", "soft error", LOG_PRINTF, 1625 fd->sc_skip / FD_BSIZE(fd), 1626 (struct disklabel *)NULL); 1627 printf("\n"); 1628 fdc->sc_errors = 0; 1629 } else { 1630 if (--fdc->sc_overruns < -20) { 1631 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1632 if (thr > 0) { 1633 thr--; 1634 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1635 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1636 #ifdef FD_DEBUG 1637 if (fdc_debug) 1638 printf("fdc: %d -> threshold\n", thr); 1639 #endif 1640 fdconf(fdc); 1641 } 1642 fdc->sc_overruns = 0; 1643 } 1644 } 1645 fd->sc_blkno += fd->sc_nblks; 1646 fd->sc_skip += fd->sc_nbytes; 1647 fd->sc_bcount -= fd->sc_nbytes; 1648 bp->b_resid -= fd->sc_nbytes; 1649 if (finfo == NULL && fd->sc_bcount > 0) { 1650 cylin = fd->sc_blkno / fd->sc_type->seccyl; 1651 goto doseek; 1652 } 1653 fdfinish(fd, bp); 1654 goto loop; 1655 1656 case DORESET: 1657 /* try a reset, keep motor on */ 1658 fd_set_motor(fdc); 1659 delay(100); 1660 fdc->sc_nstat = 0; 1661 fdc->sc_itask = FDC_ITASK_SENSEI; 1662 fdc->sc_state = RESETCOMPLETE; 1663 timeout_add_msec(&fdc->fdctimeout_to, 500); 1664 fdc_reset(fdc); 1665 return (1); /* will return later */ 1666 1667 case RESETCOMPLETE: 1668 timeout_del(&fdc->fdctimeout_to); 1669 fdconf(fdc); 1670 1671 /* FALLTHROUGH */ 1672 case DORECAL: 1673 fdc->sc_state = RECALWAIT; 1674 fdc->sc_itask = FDC_ITASK_SENSEI; 1675 fdc->sc_nstat = 0; 1676 timeout_add_sec(&fdc->fdctimeout_to, 5); 1677 /* recalibrate function */ 1678 FDC_WRFIFO(fdc, NE7CMD_RECAL); 1679 FDC_WRFIFO(fdc, fd->sc_drive); 1680 return (1); /* will return later */ 1681 1682 case RECALWAIT: 1683 timeout_del(&fdc->fdctimeout_to); 1684 fdc->sc_state = RECALCOMPLETE; 1685 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1686 /* allow 1/30 second for heads to settle */ 1687 timeout_add(&fdc->fdcpseudointr_to, hz / 30); 1688 return (1); /* will return later */ 1689 } 1690 1691 case RECALCOMPLETE: 1692 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || cyl != 0) { 1693 #ifdef FD_DEBUG 1694 if (fdc_debug) 1695 fdcstatus(fdc, "recalibrate failed"); 1696 #endif 1697 fdcretry(fdc); 1698 goto loop; 1699 } 1700 fd->sc_cylin = 0; 1701 goto doseek; 1702 1703 case MOTORWAIT: 1704 if (fd->sc_flags & FD_MOTOR_WAIT) 1705 return (1); /* time's not up yet */ 1706 goto doseek; 1707 1708 default: 1709 fdcstatus(fdc, "stray interrupt"); 1710 return (1); 1711 } 1712 #ifdef DIAGNOSTIC 1713 panic("fdcintr: impossible"); 1714 #endif 1715 1716 xxx: 1717 /* 1718 * We get here if the chip locks up in FDC_WRFIFO() 1719 * Cancel any operation and schedule a reset 1720 */ 1721 timeout_del(&fdc->fdctimeout_to); 1722 fdcretry(fdc); 1723 fdc->sc_state = DORESET; 1724 goto loop; 1725 1726 #undef st0 1727 #undef st1 1728 #undef cyl 1729 } 1730 1731 void 1732 fdcretry(fdc) 1733 struct fdc_softc *fdc; 1734 { 1735 struct fd_softc *fd; 1736 struct buf *bp; 1737 int error = EIO; 1738 1739 fd = TAILQ_FIRST(&fdc->sc_drives); 1740 bp = fd->sc_bp; 1741 1742 fdc->sc_overruns = 0; 1743 if (fd->sc_opts & FDOPT_NORETRY) 1744 goto fail; 1745 1746 switch (fdc->sc_errors) { 1747 case 0: 1748 if (fdc->sc_nstat == 7 && 1749 (fdc->sc_status[0] & 0xd8) == 0x40 && 1750 (fdc->sc_status[1] & 0x2) == 0x2) { 1751 printf("%s: read-only medium\n", fd->sc_dv.dv_xname); 1752 error = EROFS; 1753 goto failsilent; 1754 } 1755 /* try again */ 1756 fdc->sc_state = 1757 (fdc->sc_flags & FDC_EIS) ? DOIO : DOSEEK; 1758 break; 1759 1760 case 1: case 2: case 3: 1761 /* didn't work; try recalibrating */ 1762 fdc->sc_state = DORECAL; 1763 break; 1764 1765 case 4: 1766 if (fdc->sc_nstat == 7 && 1767 fdc->sc_status[0] == 0 && 1768 fdc->sc_status[1] == 0 && 1769 fdc->sc_status[2] == 0) { 1770 /* 1771 * We've retried a few times and we've got 1772 * valid status and all three status bytes 1773 * are zero. Assume this condition is the 1774 * result of no disk loaded into the drive. 1775 */ 1776 printf("%s: no medium?\n", fd->sc_dv.dv_xname); 1777 error = ENODEV; 1778 goto failsilent; 1779 } 1780 1781 /* still no go; reset the bastard */ 1782 fdc->sc_state = DORESET; 1783 break; 1784 1785 default: 1786 fail: 1787 if ((fd->sc_opts & FDOPT_SILENT) == 0) { 1788 diskerr(bp, "fd", "hard error", LOG_PRINTF, 1789 fd->sc_skip / FD_BSIZE(fd), 1790 (struct disklabel *)NULL); 1791 printf("\n"); 1792 fdcstatus(fdc, "controller status"); 1793 } 1794 1795 failsilent: 1796 bp->b_flags |= B_ERROR; 1797 bp->b_error = error; 1798 bp->b_resid = bp->b_bcount; 1799 fdfinish(fd, bp); 1800 } 1801 fdc->sc_errors++; 1802 } 1803 1804 daddr_t 1805 fdsize(dev) 1806 dev_t dev; 1807 { 1808 1809 /* Swapping to floppies would not make sense. */ 1810 return (-1); 1811 } 1812 1813 int 1814 fddump(dev, blkno, va, size) 1815 dev_t dev; 1816 daddr_t blkno; 1817 caddr_t va; 1818 size_t size; 1819 { 1820 1821 /* Not implemented. */ 1822 return (EINVAL); 1823 } 1824 1825 int 1826 fdioctl(dev, cmd, addr, flag, p) 1827 dev_t dev; 1828 u_long cmd; 1829 caddr_t addr; 1830 int flag; 1831 struct proc *p; 1832 { 1833 struct fd_softc *fd; 1834 struct fdc_softc *fdc; 1835 struct disklabel *lp; 1836 int unit; 1837 int error; 1838 #ifdef FD_DEBUG 1839 int i; 1840 #endif 1841 1842 unit = FDUNIT(dev); 1843 if (unit >= fd_cd.cd_ndevs) 1844 return (ENXIO); 1845 1846 fd = fd_cd.cd_devs[FDUNIT(dev)]; 1847 fdc = (struct fdc_softc *)fd->sc_dv.dv_parent; 1848 1849 switch (cmd) { 1850 case DIOCRLDINFO: 1851 lp = malloc(sizeof(*lp), M_TEMP, M_WAITOK); 1852 fdgetdisklabel(dev, fd, lp, 0); 1853 bcopy(lp, fd->sc_dk.dk_label, sizeof(*lp)); 1854 free(lp, M_TEMP, 0); 1855 return 0; 1856 1857 case DIOCGPDINFO: 1858 fdgetdisklabel(dev, fd, (struct disklabel *)addr, 1); 1859 return 0; 1860 1861 case DIOCGDINFO: 1862 *(struct disklabel *)addr = *(fd->sc_dk.dk_label); 1863 return 0; 1864 1865 case DIOCGPART: 1866 ((struct partinfo *)addr)->disklab = fd->sc_dk.dk_label; 1867 ((struct partinfo *)addr)->part = 1868 &fd->sc_dk.dk_label->d_partitions[DISKPART(dev)]; 1869 return 0; 1870 1871 case DIOCWDINFO: 1872 case DIOCSDINFO: 1873 if ((flag & FWRITE) == 0) 1874 return (EBADF); 1875 1876 error = setdisklabel(fd->sc_dk.dk_label, 1877 (struct disklabel *)addr, 0); 1878 if (error == 0) { 1879 if (cmd == DIOCWDINFO) 1880 error = writedisklabel(DISKLABELDEV(dev), 1881 fdstrategy, fd->sc_dk.dk_label); 1882 } 1883 return (error); 1884 1885 case DIOCLOCK: 1886 /* 1887 * Nothing to do here, really. 1888 */ 1889 return (0); 1890 1891 case MTIOCTOP: 1892 if (((struct mtop *)addr)->mt_op != MTOFFL) 1893 return (EIO); 1894 /* FALLTHROUGH */ 1895 case DIOCEJECT: 1896 if (fdc->sc_flags & FDC_NOEJECT) 1897 return (ENODEV); 1898 fd_do_eject(fd); 1899 return (0); 1900 1901 case FD_FORM: 1902 if ((flag & FWRITE) == 0) 1903 return (EBADF); /* must be opened for writing */ 1904 else if (((struct fd_formb *)addr)->format_version != 1905 FD_FORMAT_VERSION) 1906 return (EINVAL);/* wrong version of formatting prog */ 1907 else 1908 return fdformat(dev, (struct fd_formb *)addr, p); 1909 break; 1910 1911 case FD_GTYPE: /* get drive options */ 1912 *(struct fd_type *)addr = *fd->sc_type; 1913 return (0); 1914 1915 case FD_GOPTS: /* get drive options */ 1916 *(int *)addr = fd->sc_opts; 1917 return (0); 1918 1919 case FD_SOPTS: /* set drive options */ 1920 fd->sc_opts = *(int *)addr; 1921 return (0); 1922 1923 #ifdef FD_DEBUG 1924 case _IO('f', 100): 1925 fdc_wrfifo(fdc, NE7CMD_DUMPREG); 1926 fdcresult(fdc); 1927 printf("fdc: dumpreg(%d regs): <", fdc->sc_nstat); 1928 for (i = 0; i < fdc->sc_nstat; i++) 1929 printf(" 0x%x", fdc->sc_status[i]); 1930 printf(">\n"); 1931 return (0); 1932 1933 case _IOW('f', 101, int): 1934 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1935 fdc->sc_cfg |= (*(int *)addr & CFG_THRHLD_MASK); 1936 fdconf(fdc); 1937 return (0); 1938 1939 case _IO('f', 102): 1940 fdc_wrfifo(fdc, NE7CMD_SENSEI); 1941 fdcresult(fdc); 1942 printf("fdc: sensei(%d regs): <", fdc->sc_nstat); 1943 for (i=0; i< fdc->sc_nstat; i++) 1944 printf(" 0x%x", fdc->sc_status[i]); 1945 printf(">\n"); 1946 return (0); 1947 #endif 1948 default: 1949 return (ENOTTY); 1950 } 1951 } 1952 1953 int 1954 fdformat(dev, finfo, p) 1955 dev_t dev; 1956 struct fd_formb *finfo; 1957 struct proc *p; 1958 { 1959 int rv = 0; 1960 struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; 1961 struct fd_type *type = fd->sc_type; 1962 struct buf *bp; 1963 1964 /* set up a buffer header for fdstrategy() */ 1965 bp = malloc(sizeof(*bp), M_TEMP, M_NOWAIT | M_ZERO); 1966 if (bp == NULL) 1967 return (ENOBUFS); 1968 1969 bp->b_flags = B_BUSY | B_PHYS | B_FORMAT | B_RAW; 1970 bp->b_proc = p; 1971 bp->b_dev = dev; 1972 1973 /* 1974 * Calculate a fake blkno, so fdstrategy() would initiate a 1975 * seek to the requested cylinder. 1976 */ 1977 bp->b_blkno = ((finfo->cyl * (type->sectrac * type->heads) 1978 + finfo->head * type->sectrac) * FD_BSIZE(fd)) 1979 / DEV_BSIZE; 1980 1981 bp->b_bcount = sizeof(struct fd_idfield_data) * finfo->fd_formb_nsecs; 1982 bp->b_data = (caddr_t)finfo; 1983 1984 #ifdef FD_DEBUG 1985 if (fdc_debug) { 1986 int i; 1987 1988 printf("fdformat: blkno 0x%llx count %ld\n", 1989 (unsigned long long)bp->b_blkno, bp->b_bcount); 1990 1991 printf("\tcyl:\t%d\n", finfo->cyl); 1992 printf("\thead:\t%d\n", finfo->head); 1993 printf("\tnsecs:\t%d\n", finfo->fd_formb_nsecs); 1994 printf("\tsshft:\t%d\n", finfo->fd_formb_secshift); 1995 printf("\tgaplen:\t%d\n", finfo->fd_formb_gaplen); 1996 printf("\ttrack data:"); 1997 for (i = 0; i < finfo->fd_formb_nsecs; i++) { 1998 printf(" [c%d h%d s%d]", 1999 finfo->fd_formb_cylno(i), 2000 finfo->fd_formb_headno(i), 2001 finfo->fd_formb_secno(i) ); 2002 if (finfo->fd_formb_secsize(i) != 2) 2003 printf("<sz:%d>", finfo->fd_formb_secsize(i)); 2004 } 2005 printf("\n"); 2006 } 2007 #endif 2008 2009 /* now do the format */ 2010 fdstrategy(bp); 2011 2012 /* ...and wait for it to complete */ 2013 rv = biowait(bp); 2014 free(bp, M_TEMP, 0); 2015 return (rv); 2016 } 2017 2018 int 2019 fdgetdisklabel(dev_t dev, struct fd_softc *fd, struct disklabel *lp, 2020 int spoofonly) 2021 { 2022 bzero(lp, sizeof(struct disklabel)); 2023 2024 lp->d_type = DTYPE_FLOPPY; 2025 lp->d_secsize = FD_BSIZE(fd); 2026 lp->d_secpercyl = fd->sc_type->seccyl; 2027 lp->d_nsectors = fd->sc_type->sectrac; 2028 lp->d_ncylinders = fd->sc_type->tracks; 2029 lp->d_ntracks = fd->sc_type->heads; /* Go figure... */ 2030 DL_SETDSIZE(lp, (u_int64_t)lp->d_secpercyl * lp->d_ncylinders); 2031 2032 strncpy(lp->d_typename, "floppy disk", sizeof(lp->d_typename)); 2033 strncpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); 2034 lp->d_version = 1; 2035 2036 lp->d_magic = DISKMAGIC; 2037 lp->d_magic2 = DISKMAGIC; 2038 lp->d_checksum = dkcksum(lp); 2039 2040 /* 2041 * Call the generic disklabel extraction routine. If there's 2042 * not a label there, fake it. 2043 */ 2044 return readdisklabel(DISKLABELDEV(dev), fdstrategy, lp, spoofonly); 2045 } 2046 2047 void 2048 fd_do_eject(fd) 2049 struct fd_softc *fd; 2050 { 2051 struct fdc_softc *fdc = (void *)fd->sc_dv.dv_parent; 2052 bus_space_tag_t t = fdc->sc_bustag; 2053 bus_space_handle_t h = fdc->sc_handle; 2054 u_int8_t dor = FDO_FRST | FDO_FDMAEN | FDO_MOEN(0); 2055 2056 bus_space_write_1(t, h, FDREG77_DOR, dor | FDO_EJ); 2057 delay(10); 2058 bus_space_write_1(t, h, FDREG77_DOR, FDO_FRST | FDO_DS); 2059 } 2060