fdc.c revision 1.15
1 /* $NetBSD: fdc.c,v 1.15 2007/10/08 16:41:08 ad Exp $ */ 2 3 /*- 4 * Copyright (c) 2000 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Paul Kranenburg. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /*- 40 * Copyright (c) 1990 The Regents of the University of California. 41 * All rights reserved. 42 * 43 * This code is derived from software contributed to Berkeley by 44 * Don Ahn. 45 * 46 * Redistribution and use in source and binary forms, with or without 47 * modification, are permitted provided that the following conditions 48 * are met: 49 * 1. Redistributions of source code must retain the above copyright 50 * notice, this list of conditions and the following disclaimer. 51 * 2. Redistributions in binary form must reproduce the above copyright 52 * notice, this list of conditions and the following disclaimer in the 53 * documentation and/or other materials provided with the distribution. 54 * 3. Neither the name of the University nor the names of its contributors 55 * may be used to endorse or promote products derived from this software 56 * without specific prior written permission. 57 * 58 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 59 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 60 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 61 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 62 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 63 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 64 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 65 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 66 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 67 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 68 * SUCH DAMAGE. 69 * 70 * @(#)fd.c 7.4 (Berkeley) 5/25/91 71 */ 72 73 /*- 74 * Copyright (c) 1993, 1994, 1995 Charles M. Hannum. 75 * 76 * This code is derived from software contributed to Berkeley by 77 * Don Ahn. 78 * 79 * Redistribution and use in source and binary forms, with or without 80 * modification, are permitted provided that the following conditions 81 * are met: 82 * 1. Redistributions of source code must retain the above copyright 83 * notice, this list of conditions and the following disclaimer. 84 * 2. Redistributions in binary form must reproduce the above copyright 85 * notice, this list of conditions and the following disclaimer in the 86 * documentation and/or other materials provided with the distribution. 87 * 3. All advertising materials mentioning features or use of this software 88 * must display the following acknowledgement: 89 * This product includes software developed by the University of 90 * California, Berkeley and its contributors. 91 * 4. Neither the name of the University nor the names of its contributors 92 * may be used to endorse or promote products derived from this software 93 * without specific prior written permission. 94 * 95 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 96 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 97 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 98 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 99 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 100 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 101 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 102 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 103 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 104 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 105 * SUCH DAMAGE. 106 * 107 * @(#)fd.c 7.4 (Berkeley) 5/25/91 108 */ 109 110 #include <sys/cdefs.h> 111 __KERNEL_RCSID(0, "$NetBSD: fdc.c,v 1.15 2007/10/08 16:41:08 ad Exp $"); 112 113 #include "opt_ddb.h" 114 #include "opt_md.h" 115 116 #include <sys/param.h> 117 #include <sys/types.h> 118 #include <sys/systm.h> 119 #include <sys/callout.h> 120 #include <sys/kernel.h> 121 #include <sys/file.h> 122 #include <sys/ioctl.h> 123 #include <sys/device.h> 124 #include <sys/disklabel.h> 125 #include <sys/disk.h> 126 #include <sys/fdio.h> 127 #include <sys/buf.h> 128 #include <sys/bufq.h> 129 #include <sys/malloc.h> 130 #include <sys/proc.h> 131 #include <sys/uio.h> 132 #include <sys/stat.h> 133 #include <sys/syslog.h> 134 #include <sys/queue.h> 135 #include <sys/conf.h> 136 137 #include <dev/cons.h> 138 139 #include <uvm/uvm_extern.h> 140 141 #include <machine/autoconf.h> 142 #include <machine/intr.h> 143 144 #ifdef SUN4 145 #include <sparc/sparc/auxreg.h> 146 #include <sparc/dev/fdreg.h> 147 #include <sparc/dev/fdvar.h> 148 #elif SUN4U 149 #include <dev/ebus/ebusreg.h> 150 #include <dev/ebus/ebusvar.h> 151 /* #include <sparc/sparc/auxreg.h> */ 152 #include <sparc64/dev/auxioreg.h> 153 #include <sparc64/dev/auxiovar.h> 154 #include <sparc64/dev/fdcreg.h> 155 #include <sparc64/dev/fdcvar.h> 156 #endif 157 158 #include <prop/proplib.h> 159 160 #define FDUNIT(dev) (minor(dev) / 8) 161 #define FDTYPE(dev) (minor(dev) % 8) 162 163 /* (mis)use device use flag to identify format operation */ 164 #define B_FORMAT B_DEVPRIVATE 165 166 #define FD_DEBUG 167 #ifdef FD_DEBUG 168 int fdc_debug = 0; 169 #endif 170 171 enum fdc_state { 172 DEVIDLE = 0, 173 MOTORWAIT, /* 1 */ 174 DOSEEK, /* 2 */ 175 SEEKWAIT, /* 3 */ 176 SEEKTIMEDOUT, /* 4 */ 177 SEEKCOMPLETE, /* 5 */ 178 DOIO, /* 6 */ 179 IOCOMPLETE, /* 7 */ 180 IOTIMEDOUT, /* 8 */ 181 IOCLEANUPWAIT, /* 9 */ 182 IOCLEANUPTIMEDOUT,/*10 */ 183 DORESET, /* 11 */ 184 RESETCOMPLETE, /* 12 */ 185 RESETTIMEDOUT, /* 13 */ 186 DORECAL, /* 14 */ 187 RECALWAIT, /* 15 */ 188 RECALTIMEDOUT, /* 16 */ 189 RECALCOMPLETE, /* 17 */ 190 DODSKCHG, /* 18 */ 191 DSKCHGWAIT, /* 19 */ 192 DSKCHGTIMEDOUT, /* 20 */ 193 }; 194 195 /* software state, per controller */ 196 struct fdc_softc { 197 struct device sc_dev; /* boilerplate */ 198 bus_space_tag_t sc_bustag; 199 200 struct callout sc_timo_ch; /* timeout callout */ 201 struct callout sc_intr_ch; /* pseudo-intr callout */ 202 203 struct fd_softc *sc_fd[4]; /* pointers to children */ 204 TAILQ_HEAD(drivehead, fd_softc) sc_drives; 205 enum fdc_state sc_state; 206 int sc_flags; 207 #define FDC_82077 0x01 208 #define FDC_NEEDHEADSETTLE 0x02 209 #define FDC_EIS 0x04 210 #define FDC_NEEDMOTORWAIT 0x08 211 #define FDC_NOEJECT 0x10 212 #define FDC_EBUS 0x20 213 int sc_errors; /* number of retries so far */ 214 int sc_overruns; /* number of DMA overruns */ 215 int sc_cfg; /* current configuration */ 216 struct fdcio sc_io; 217 #define sc_handle sc_io.fdcio_handle 218 #define sc_reg_msr sc_io.fdcio_reg_msr 219 #define sc_reg_fifo sc_io.fdcio_reg_fifo 220 #define sc_reg_dor sc_io.fdcio_reg_dor 221 #define sc_reg_dir sc_io.fdcio_reg_dir 222 #define sc_reg_drs sc_io.fdcio_reg_msr 223 #define sc_itask sc_io.fdcio_itask 224 #define sc_istatus sc_io.fdcio_istatus 225 #define sc_data sc_io.fdcio_data 226 #define sc_tc sc_io.fdcio_tc 227 #define sc_nstat sc_io.fdcio_nstat 228 #define sc_status sc_io.fdcio_status 229 #define sc_intrcnt sc_io.fdcio_intrcnt 230 231 void *sc_sicookie; /* softintr(9) cookie */ 232 }; 233 234 #ifdef SUN4 235 extern struct fdcio *fdciop; /* I/O descriptor used in fdintr.s */ 236 #endif 237 238 /* controller driver configuration */ 239 #ifdef SUN4 240 int fdcmatch_mainbus(struct device *, struct cfdata *, void*); 241 int fdcmatch_obio(struct device *, struct cfdata *, void *); 242 void fdcattach_mainbus(struct device *, struct device *, void *); 243 void fdcattach_obio(struct device *, struct device *, void *); 244 #elif SUN4U 245 int fdcmatch_sbus(struct device *, struct cfdata *, void *); 246 int fdcmatch_ebus(struct device *, struct cfdata *, void *); 247 void fdcattach_sbus(struct device *, struct device *, void *); 248 void fdcattach_ebus(struct device *, struct device *, void *); 249 #endif 250 251 int fdcattach(struct fdc_softc *, int); 252 253 #ifdef SUN4 254 CFATTACH_DECL(fdc_mainbus, sizeof(struct fdc_softc), 255 fdcmatch_mainbus, fdcattach_mainbus, NULL, NULL); 256 257 CFATTACH_DECL(fdc_obio, sizeof(struct fdc_softc), 258 fdcmatch_obio, fdcattach_obio, NULL, NULL); 259 #elif SUN4U 260 CFATTACH_DECL(fdc_sbus, sizeof(struct fdc_softc), 261 fdcmatch_sbus, fdcattach_sbus, NULL, NULL); 262 263 CFATTACH_DECL(fdc_ebus, sizeof(struct fdc_softc), 264 fdcmatch_ebus, fdcattach_ebus, NULL, NULL); 265 #endif 266 267 inline struct fd_type *fd_dev_to_type(struct fd_softc *, dev_t); 268 269 /* 270 * Floppies come in various flavors, e.g., 1.2MB vs 1.44MB; here is how 271 * we tell them apart. 272 */ 273 struct fd_type { 274 int sectrac; /* sectors per track */ 275 int heads; /* number of heads */ 276 int seccyl; /* sectors per cylinder */ 277 int secsize; /* size code for sectors */ 278 int datalen; /* data len when secsize = 0 */ 279 int steprate; /* step rate and head unload time */ 280 int gap1; /* gap len between sectors */ 281 int gap2; /* formatting gap */ 282 int cylinders; /* total num of cylinders */ 283 int size; /* size of disk in sectors */ 284 int step; /* steps per cylinder */ 285 int rate; /* transfer speed code */ 286 int fillbyte; /* format fill byte */ 287 int interleave; /* interleave factor (formatting) */ 288 const char *name; 289 }; 290 291 /* The order of entries in the following table is important -- BEWARE! */ 292 struct fd_type fd_types[] = { 293 { 18,2,36,2,0xff,0xcf,0x1b,0x6c,80,2880,1,FDC_500KBPS,0xf6,1, "1.44MB" }, /* 1.44MB diskette */ 294 { 9,2,18,2,0xff,0xdf,0x2a,0x50,80,1440,1,FDC_250KBPS,0xf6,1, "720KB" }, /* 3.5" 720kB diskette */ 295 { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,2,FDC_250KBPS,0xf6,1, "360KB/x" }, /* 360kB in 720kB drive */ 296 { 8,2,16,3,0xff,0xdf,0x35,0x74,77,1232,1,FDC_500KBPS,0xf6,1, "1.2MB/NEC" } /* 1.2 MB japanese format */ 297 }; 298 299 /* software state, per disk (with up to 4 disks per ctlr) */ 300 struct fd_softc { 301 struct device sc_dv; /* generic device info */ 302 struct disk sc_dk; /* generic disk info */ 303 304 struct fd_type *sc_deftype; /* default type descriptor */ 305 struct fd_type *sc_type; /* current type descriptor */ 306 307 struct callout sc_motoron_ch; 308 struct callout sc_motoroff_ch; 309 310 daddr_t sc_blkno; /* starting block number */ 311 int sc_bcount; /* byte count left */ 312 int sc_skip; /* bytes already transferred */ 313 int sc_nblks; /* number of blocks currently transferring */ 314 int sc_nbytes; /* number of bytes currently transferring */ 315 316 int sc_drive; /* physical unit number */ 317 int sc_flags; 318 #define FD_OPEN 0x01 /* it's open */ 319 #define FD_MOTOR 0x02 /* motor should be on */ 320 #define FD_MOTOR_WAIT 0x04 /* motor coming up */ 321 int sc_cylin; /* where we think the head is */ 322 int sc_opts; /* user-set options */ 323 324 void *sc_sdhook; /* shutdownhook cookie */ 325 326 TAILQ_ENTRY(fd_softc) sc_drivechain; 327 int sc_ops; /* I/O ops since last switch */ 328 struct bufq_state *sc_q;/* pending I/O requests */ 329 int sc_active; /* number of active I/O requests */ 330 }; 331 332 /* floppy driver configuration */ 333 int fdmatch(struct device *, struct cfdata *, void *); 334 void fdattach(struct device *, struct device *, void *); 335 336 CFATTACH_DECL(fd, sizeof(struct fd_softc), 337 fdmatch, fdattach, NULL, NULL); 338 339 extern struct cfdriver fd_cd; 340 341 dev_type_open(fdopen); 342 dev_type_close(fdclose); 343 dev_type_read(fdread); 344 dev_type_write(fdwrite); 345 dev_type_ioctl(fdioctl); 346 dev_type_strategy(fdstrategy); 347 348 const struct bdevsw fd_bdevsw = { 349 fdopen, fdclose, fdstrategy, fdioctl, nodump, nosize, D_DISK 350 }; 351 352 const struct cdevsw fd_cdevsw = { 353 fdopen, fdclose, fdread, fdwrite, fdioctl, 354 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 355 }; 356 357 void fdgetdisklabel(dev_t); 358 int fd_get_parms(struct fd_softc *); 359 void fdstrategy(struct buf *); 360 void fdstart(struct fd_softc *); 361 int fdprint(void *, const char *); 362 363 struct dkdriver fddkdriver = { fdstrategy, NULL }; 364 365 struct fd_type *fd_nvtotype(char *, int, int); 366 void fd_set_motor(struct fdc_softc *); 367 void fd_motor_off(void *); 368 void fd_motor_on(void *); 369 int fdcresult(struct fdc_softc *); 370 int fdc_wrfifo(struct fdc_softc *, uint8_t); 371 void fdcstart(struct fdc_softc *); 372 void fdcstatus(struct fdc_softc *, const char *); 373 void fdc_reset(struct fdc_softc *); 374 int fdc_diskchange(struct fdc_softc *); 375 void fdctimeout(void *); 376 void fdcpseudointr(void *); 377 int fdc_c_hwintr(void *); 378 void fdchwintr(void); 379 void fdcswintr(void *); 380 int fdcstate(struct fdc_softc *); 381 void fdcretry(struct fdc_softc *); 382 void fdfinish(struct fd_softc *, struct buf *); 383 int fdformat(dev_t, struct ne7_fd_formb *, struct proc *); 384 void fd_do_eject(struct fd_softc *); 385 void fd_mountroot_hook(struct device *); 386 static int fdconf(struct fdc_softc *); 387 static void establish_chip_type( 388 struct fdc_softc *, 389 bus_space_tag_t, 390 bus_addr_t, 391 bus_size_t, 392 bus_space_handle_t); 393 static void fd_set_properties(struct fd_softc *); 394 395 #ifdef MEMORY_DISK_HOOKS 396 int fd_read_md_image(size_t *, void **); 397 #endif 398 399 #ifdef SUN4 400 #define OBP_FDNAME (CPU_ISSUN4M ? "SUNW,fdtwo" : "fd") 401 402 int 403 fdcmatch_mainbus(struct device *parent, struct cfdata *match, void *aux) 404 { 405 struct mainbus_attach_args *ma = aux; 406 407 /* 408 * Floppy controller is on mainbus on sun4c. 409 */ 410 if (!CPU_ISSUN4C) 411 return 0; 412 413 /* sun4c PROMs call the controller "fd" */ 414 if (strcmp("fd", ma->ma_name) != 0) 415 return 0; 416 417 return bus_space_probe(ma->ma_bustag, 418 ma->ma_paddr, 419 1, /* probe size */ 420 0, /* offset */ 421 0, /* flags */ 422 NULL, NULL); 423 } 424 425 int 426 fdcmatch_obio(struct device *parent, struct cfdata *match, void *aux) 427 { 428 union obio_attach_args *uoba = aux; 429 struct sbus_attach_args *sa; 430 431 /* 432 * Floppy controller is on obio on sun4m. 433 */ 434 if (uoba->uoba_isobio4 != 0) 435 return 0; 436 437 sa = &uoba->uoba_sbus; 438 439 /* sun4m PROMs call the controller "SUNW,fdtwo" */ 440 if (strcmp("SUNW,fdtwo", sa->sa_name) != 0) 441 return 0; 442 443 return bus_space_probe(sa->sa_bustag, 444 sbus_bus_addr(sa->sa_bustag, 445 sa->sa_slot, sa->sa_offset), 446 1, /* probe size */ 447 0, /* offset */ 448 0, /* flags */ 449 NULL, NULL); 450 } 451 452 #elif SUN4U 453 454 int 455 fdcmatch_sbus(struct device *parent, struct cfdata *match, void *aux) 456 { 457 struct sbus_attach_args *sa = aux; 458 459 return strcmp("SUNW,fdtwo", sa->sa_name) == 0; 460 } 461 462 int 463 fdcmatch_ebus(struct device *parent, struct cfdata *match, void *aux) 464 { 465 struct ebus_attach_args *ea = aux; 466 467 return strcmp("fdthree", ea->ea_name) == 0; 468 } 469 #endif 470 471 static void 472 establish_chip_type(struct fdc_softc *fdc, 473 bus_space_tag_t tag, bus_addr_t addr, bus_size_t size, 474 bus_space_handle_t handle) 475 { 476 uint8_t v; 477 478 /* 479 * This hack from Chris Torek: apparently DOR really 480 * addresses MSR/DRS on a 82072. 481 * We used to rely on the VERSION command to tell the 482 * difference (which did not work). 483 */ 484 485 /* First, check the size of the register bank */ 486 if (size < 8) 487 /* It isn't a 82077 */ 488 return; 489 490 #ifdef SUN4 491 /* Then probe the DOR register offset */ 492 if (bus_space_probe(tag, addr, 493 1, /* probe size */ 494 FDREG77_DOR, /* offset */ 495 0, /* flags */ 496 NULL, NULL) == 0) { 497 498 /* It isn't a 82077 */ 499 return; 500 } 501 #endif 502 503 v = bus_space_read_1(tag, handle, FDREG77_DOR); 504 if (v == NE7_RQM) { 505 /* 506 * Value in DOR looks like it's really MSR 507 */ 508 bus_space_write_1(tag, handle, FDREG77_DOR, FDC_250KBPS); 509 v = bus_space_read_1(tag, handle, FDREG77_DOR); 510 if (v == NE7_RQM) { 511 /* 512 * The value in the DOR didn't stick; 513 * it isn't a 82077 514 */ 515 return; 516 } 517 } 518 519 fdc->sc_flags |= FDC_82077; 520 } 521 522 /* 523 * Arguments passed between fdcattach and fdprobe. 524 */ 525 struct fdc_attach_args { 526 int fa_drive; 527 struct fd_type *fa_deftype; 528 }; 529 530 /* 531 * Print the location of a disk drive (called just before attaching the 532 * the drive). If `fdc' is not NULL, the drive was found but was not 533 * in the system config file; print the drive name as well. 534 * Return QUIET (config_find ignores this if the device was configured) to 535 * avoid printing `fdN not configured' messages. 536 */ 537 int 538 fdprint(void *aux, const char *fdc) 539 { 540 register struct fdc_attach_args *fa = aux; 541 542 if (!fdc) 543 aprint_normal(" drive %d", fa->fa_drive); 544 return QUIET; 545 } 546 547 /* 548 * Configure several parameters and features on the FDC. 549 * Return 0 on success. 550 */ 551 static int 552 fdconf(struct fdc_softc *fdc) 553 { 554 int vroom; 555 556 if (fdc_wrfifo(fdc, NE7CMD_DUMPREG) || fdcresult(fdc) != 10) 557 return -1; 558 559 /* 560 * dumpreg[7] seems to be a motor-off timeout; set it to whatever 561 * the PROM thinks is appropriate. 562 */ 563 if ((vroom = fdc->sc_status[7]) == 0) 564 vroom = 0x64; 565 566 /* Configure controller to use FIFO and Implied Seek */ 567 if (fdc_wrfifo(fdc, NE7CMD_CFG) != 0) 568 return -1; 569 if (fdc_wrfifo(fdc, vroom) != 0) 570 return -1; 571 if (fdc_wrfifo(fdc, fdc->sc_cfg) != 0) 572 return -1; 573 if (fdc_wrfifo(fdc, 0) != 0) /* PRETRK */ 574 return -1; 575 /* No result phase for the NE7CMD_CFG command */ 576 577 if ((fdc->sc_flags & FDC_82077) != 0) { 578 /* Lock configuration across soft resets. */ 579 if (fdc_wrfifo(fdc, NE7CMD_LOCK | CFG_LOCK) != 0 || 580 fdcresult(fdc) != 1) { 581 #ifdef DEBUG 582 printf("fdconf: CFGLOCK failed"); 583 #endif 584 return -1; 585 } 586 } 587 588 return 0; 589 #if 0 590 if (fdc_wrfifo(fdc, NE7CMD_VERSION) == 0 && 591 fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x90) { 592 if (fdc_debug) 593 printf("[version cmd]"); 594 } 595 #endif 596 } 597 598 #ifdef SUN4 599 void 600 fdcattach_mainbus(struct device *parent, struct device *self, void *aux) 601 { 602 struct fdc_softc *fdc = (void *)self; 603 struct mainbus_attach_args *ma = aux; 604 605 fdc->sc_bustag = ma->ma_bustag; 606 607 if (bus_space_map( 608 ma->ma_bustag, 609 ma->ma_paddr, 610 ma->ma_size, 611 BUS_SPACE_MAP_LINEAR, 612 &fdc->sc_handle) != 0) { 613 printf("%s: cannot map registers\n", self->dv_xname); 614 return; 615 } 616 617 establish_chip_type(fdc, 618 ma->ma_bustag, 619 ma->ma_paddr, 620 ma->ma_size, 621 fdc->sc_handle); 622 623 if (fdcattach(fdc, ma->ma_pri) != 0) 624 bus_space_unmap(ma->ma_bustag, fdc->sc_handle, ma->ma_size); 625 } 626 627 void 628 fdcattach_obio(struct device *parent, struct device *self, void *aux) 629 { 630 struct fdc_softc *fdc = (void *)self; 631 union obio_attach_args *uoba = aux; 632 struct sbus_attach_args *sa = &uoba->uoba_sbus; 633 634 if (sa->sa_nintr == 0) { 635 printf(": no interrupt line configured\n"); 636 return; 637 } 638 639 fdc->sc_bustag = sa->sa_bustag; 640 641 if (sbus_bus_map(sa->sa_bustag, 642 sa->sa_slot, sa->sa_offset, sa->sa_size, 643 BUS_SPACE_MAP_LINEAR, &fdc->sc_handle) != 0) { 644 printf("%s: cannot map control registers\n", 645 self->dv_xname); 646 return; 647 } 648 649 establish_chip_type(fdc, 650 sa->sa_bustag, 651 sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset), 652 sa->sa_size, 653 fdc->sc_handle); 654 655 if (strcmp(prom_getpropstring(sa->sa_node, "status"), "disabled") == 0) { 656 printf(": no drives attached\n"); 657 return; 658 } 659 660 if (fdcattach(fdc, sa->sa_pri) != 0) 661 bus_space_unmap(sa->sa_bustag, fdc->sc_handle, sa->sa_size); 662 } 663 664 #elif SUN4U 665 666 void 667 fdcattach_sbus(struct device *parent, struct device *self, void *aux) 668 { 669 struct fdc_softc *fdc = (void *)self; 670 struct sbus_attach_args *sa = aux; 671 672 if (sa->sa_nintr == 0) { 673 printf(": no interrupt line configured\n"); 674 return; 675 } 676 677 if (auxio_fd_control(0) != 0) { 678 printf(": can't attach before auxio\n"); 679 return; 680 } 681 682 fdc->sc_bustag = sa->sa_bustag; 683 684 if (bus_space_map(sa->sa_bustag, BUS_ADDR(sa->sa_slot, sa->sa_offset), 685 sa->sa_size, 0, &fdc->sc_handle) != 0) { 686 printf(": cannot map control registers\n"); 687 return; 688 } 689 690 establish_chip_type(fdc, 691 sa->sa_bustag, 692 BUS_ADDR(sa->sa_slot, sa->sa_offset), 693 sa->sa_size, 694 fdc->sc_handle); 695 696 if (strcmp(prom_getpropstring(sa->sa_node, "status"), "disabled") == 0) { 697 printf(": no drives attached\n"); 698 return; 699 } 700 701 if (prom_getproplen(sa->sa_node, "manual") >= 0) 702 fdc->sc_flags |= FDC_NOEJECT; 703 704 705 if (fdcattach(fdc, sa->sa_pri) != 0) 706 bus_space_unmap(sa->sa_bustag, fdc->sc_handle, sa->sa_size); 707 } 708 709 void 710 fdcattach_ebus(struct device *parent, struct device *self, void *aux) 711 { 712 struct fdc_softc *fdc = (void *)self; 713 struct ebus_attach_args *ea = aux; 714 int map_vaddr; 715 716 if (ea->ea_nintr == 0) { 717 printf(": no interrupt line configured\n"); 718 return; 719 } 720 721 if (ea->ea_nreg < 3) { 722 printf(": expected 3 registers, only got %d\n", 723 ea->ea_nreg); 724 return; 725 } 726 727 fdc->sc_bustag = ea->ea_bustag; 728 729 if (ea->ea_nvaddr > 0) { 730 sparc_promaddr_to_handle(ea->ea_bustag, 731 ea->ea_vaddr[0], &fdc->sc_handle); 732 map_vaddr = 1; 733 } else if (bus_space_map(fdc->sc_bustag, 734 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 735 ea->ea_reg[0].size, 0, &fdc->sc_handle) == 0) { 736 map_vaddr = 0; 737 } else { 738 printf(": can't map control registers\n"); 739 return; 740 } 741 742 establish_chip_type(fdc, 743 fdc->sc_bustag, 744 map_vaddr ? ea->ea_vaddr[0] : 745 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 746 ea->ea_reg[0].size, 747 fdc->sc_handle); 748 749 fdc->sc_flags |= FDC_EBUS; 750 751 if (prom_getproplen(ea->ea_node, "manual") >= 0) 752 fdc->sc_flags |= FDC_NOEJECT; 753 754 if (fdcattach(fdc, ea->ea_intr[0]) != 0) 755 if (map_vaddr == 0) 756 bus_space_unmap(ea->ea_bustag, fdc->sc_handle, 757 ea->ea_reg[0].size); 758 } 759 #endif 760 761 int 762 fdcattach(struct fdc_softc *fdc, int pri) 763 { 764 struct fdc_attach_args fa; 765 int drive_attached; 766 char code; 767 768 callout_init(&fdc->sc_timo_ch, 0); 769 callout_init(&fdc->sc_intr_ch, 0); 770 771 fdc->sc_state = DEVIDLE; 772 fdc->sc_itask = FDC_ITASK_NONE; 773 fdc->sc_istatus = FDC_ISTATUS_NONE; 774 fdc->sc_flags |= FDC_EIS; 775 TAILQ_INIT(&fdc->sc_drives); 776 777 if ((fdc->sc_flags & FDC_82077) != 0) { 778 fdc->sc_reg_msr = FDREG77_MSR; 779 fdc->sc_reg_fifo = FDREG77_FIFO; 780 fdc->sc_reg_dor = FDREG77_DOR; 781 fdc->sc_reg_dir = FDREG77_DIR; 782 code = '7'; 783 fdc->sc_flags |= FDC_NEEDMOTORWAIT; 784 } else { 785 fdc->sc_reg_msr = FDREG72_MSR; 786 fdc->sc_reg_fifo = FDREG72_FIFO; 787 fdc->sc_reg_dor = 0; 788 code = '2'; 789 } 790 791 /* 792 * Configure controller; enable FIFO, Implied seek, no POLL mode?. 793 * Note: CFG_EFIFO is active-low, initial threshold value: 8 794 */ 795 fdc->sc_cfg = CFG_EIS|/*CFG_EFIFO|*/CFG_POLL|(8 & CFG_THRHLD_MASK); 796 if (fdconf(fdc) != 0) { 797 printf(": no drives attached\n"); 798 return -1; 799 } 800 801 #ifdef SUN4 802 fdc->sc_sicookie = softintr_establish(IPL_BIO, fdcswintr, fdc); 803 #elif SUN4U 804 fdc->sc_sicookie = softintr_establish(IPL_FDSOFT, fdcswintr, fdc); 805 #endif 806 if (fdc->sc_sicookie == NULL) { 807 printf("\n%s: cannot register soft interrupt handler\n", 808 fdc->sc_dev.dv_xname); 809 callout_stop(&fdc->sc_timo_ch); 810 callout_stop(&fdc->sc_intr_ch); 811 return -1; 812 } 813 #ifdef SUN4 814 printf(" softpri %d: chip 8207%c\n", IPL_SOFTFDC, code); 815 #elif SUN4U 816 printf(" softpri %d: chip 8207%c", PIL_FDSOFT, code); 817 if (fdc->sc_flags & FDC_NOEJECT) 818 printf(": manual eject"); 819 printf("\n"); 820 #endif 821 822 #ifdef SUN4 823 fdciop = &fdc->sc_io; 824 if (bus_intr_establish2(fdc->sc_bustag, pri, 0, 825 fdc_c_hwintr, fdc, fdchwintr) == NULL) { 826 #elif SUN4U 827 if (bus_intr_establish(fdc->sc_bustag, pri, IPL_BIO, 828 fdc_c_hwintr, fdc) == NULL) { 829 #endif 830 printf("\n%s: cannot register interrupt handler\n", 831 fdc->sc_dev.dv_xname); 832 callout_stop(&fdc->sc_timo_ch); 833 callout_stop(&fdc->sc_intr_ch); 834 softintr_disestablish(fdc->sc_sicookie); 835 return -1; 836 } 837 838 evcnt_attach_dynamic(&fdc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 839 fdc->sc_dev.dv_xname, "intr"); 840 841 /* physical limit: four drives per controller. */ 842 drive_attached = 0; 843 for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) { 844 fa.fa_deftype = NULL; /* unknown */ 845 fa.fa_deftype = &fd_types[0]; /* XXX */ 846 if (config_found(&fdc->sc_dev, (void *)&fa, fdprint) != NULL) 847 drive_attached = 1; 848 } 849 850 if (drive_attached == 0) { 851 /* XXX - dis-establish interrupts here */ 852 /* return -1; */ 853 } 854 855 return 0; 856 } 857 858 int 859 fdmatch(struct device *parent, struct cfdata *match, void *aux) 860 { 861 struct fdc_softc *fdc = (void *)parent; 862 bus_space_tag_t t = fdc->sc_bustag; 863 bus_space_handle_t h = fdc->sc_handle; 864 struct fdc_attach_args *fa = aux; 865 int drive = fa->fa_drive; 866 int n, ok; 867 868 if (drive > 0) 869 /* XXX - for now, punt on more than one drive */ 870 return 0; 871 872 if ((fdc->sc_flags & FDC_82077) != 0) { 873 /* select drive and turn on motor */ 874 bus_space_write_1(t, h, fdc->sc_reg_dor, 875 drive | FDO_FRST | FDO_MOEN(drive)); 876 /* wait for motor to spin up */ 877 delay(250000); 878 #ifdef SUN4 879 } else { 880 auxregbisc(AUXIO4C_FDS, 0); 881 #endif 882 } 883 fdc->sc_nstat = 0; 884 fdc_wrfifo(fdc, NE7CMD_RECAL); 885 fdc_wrfifo(fdc, drive); 886 887 /* Wait for recalibration to complete */ 888 for (n = 0; n < 10000; n++) { 889 uint8_t v; 890 891 delay(1000); 892 v = bus_space_read_1(t, h, fdc->sc_reg_msr); 893 if ((v & (NE7_RQM|NE7_DIO|NE7_CB)) == NE7_RQM) { 894 /* wait a bit longer till device *really* is ready */ 895 delay(100000); 896 if (fdc_wrfifo(fdc, NE7CMD_SENSEI)) 897 break; 898 if (fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x80) 899 /* 900 * Got `invalid command'; we interpret it 901 * to mean that the re-calibrate hasn't in 902 * fact finished yet 903 */ 904 continue; 905 break; 906 } 907 } 908 n = fdc->sc_nstat; 909 #ifdef FD_DEBUG 910 if (fdc_debug) { 911 int i; 912 printf("fdprobe: %d stati:", n); 913 for (i = 0; i < n; i++) 914 printf(" 0x%x", fdc->sc_status[i]); 915 printf("\n"); 916 } 917 #endif 918 ok = (n == 2 && (fdc->sc_status[0] & 0xf8) == 0x20) ? 1 : 0; 919 920 /* turn off motor */ 921 if ((fdc->sc_flags & FDC_82077) != 0) { 922 /* deselect drive and turn motor off */ 923 bus_space_write_1(t, h, fdc->sc_reg_dor, FDO_FRST | FDO_DS); 924 #ifdef SUN4 925 } else { 926 auxregbisc(0, AUXIO4C_FDS); 927 #endif 928 } 929 930 return ok; 931 } 932 933 /* 934 * Controller is working, and drive responded. Attach it. 935 */ 936 void 937 fdattach(struct device *parent, struct device *self, void *aux) 938 { 939 struct fdc_softc *fdc = (void *)parent; 940 struct fd_softc *fd = (void *)self; 941 struct fdc_attach_args *fa = aux; 942 struct fd_type *type = fa->fa_deftype; 943 int drive = fa->fa_drive; 944 945 callout_init(&fd->sc_motoron_ch, 0); 946 callout_init(&fd->sc_motoroff_ch, 0); 947 948 /* XXX Allow `flags' to override device type? */ 949 950 if (type) 951 printf(": %s %d cyl, %d head, %d sec\n", type->name, 952 type->cylinders, type->heads, type->sectrac); 953 else 954 printf(": density unknown\n"); 955 956 bufq_alloc(&fd->sc_q, "disksort", BUFQ_SORT_CYLINDER); 957 fd->sc_cylin = -1; 958 fd->sc_drive = drive; 959 fd->sc_deftype = type; 960 fdc->sc_fd[drive] = fd; 961 962 fdc_wrfifo(fdc, NE7CMD_SPECIFY); 963 fdc_wrfifo(fdc, type->steprate); 964 /* XXX head load time == 6ms */ 965 fdc_wrfifo(fdc, 6 | NE7_SPECIFY_NODMA); 966 967 /* 968 * Initialize and attach the disk structure. 969 */ 970 disk_init(&fd->sc_dk, fd->sc_dv.dv_xname, &fddkdriver); 971 disk_attach(&fd->sc_dk); 972 973 /* 974 * Establish a mountroot_hook anyway in case we booted 975 * with RB_ASKNAME and get selected as the boot device. 976 */ 977 mountroothook_establish(fd_mountroot_hook, &fd->sc_dv); 978 979 fd_set_properties(fd); 980 981 /* Make sure the drive motor gets turned off at shutdown time. */ 982 fd->sc_sdhook = shutdownhook_establish(fd_motor_off, fd); 983 } 984 985 inline struct fd_type * 986 fd_dev_to_type(struct fd_softc *fd, dev_t dev) 987 { 988 int type = FDTYPE(dev); 989 990 if (type > (sizeof(fd_types) / sizeof(fd_types[0]))) 991 return NULL; 992 return type ? &fd_types[type - 1] : fd->sc_deftype; 993 } 994 995 void 996 fdstrategy(struct buf *bp) 997 { 998 struct fd_softc *fd; 999 int unit = FDUNIT(bp->b_dev); 1000 int sz; 1001 int s; 1002 1003 /* Valid unit, controller, and request? */ 1004 if (unit >= fd_cd.cd_ndevs || 1005 (fd = fd_cd.cd_devs[unit]) == 0 || 1006 bp->b_blkno < 0 || 1007 (((bp->b_bcount % FD_BSIZE(fd)) != 0 || 1008 (bp->b_blkno * DEV_BSIZE) % FD_BSIZE(fd) != 0) && 1009 (bp->b_flags & B_FORMAT) == 0)) { 1010 bp->b_error = EINVAL; 1011 goto done; 1012 } 1013 1014 /* If it's a null transfer, return immediately. */ 1015 if (bp->b_bcount == 0) 1016 goto done; 1017 1018 sz = howmany(bp->b_bcount, DEV_BSIZE); 1019 1020 if (bp->b_blkno + sz > (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd)) { 1021 sz = (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd) 1022 - bp->b_blkno; 1023 if (sz == 0) { 1024 /* If exactly at end of disk, return EOF. */ 1025 bp->b_resid = bp->b_bcount; 1026 goto done; 1027 } 1028 if (sz < 0) { 1029 /* If past end of disk, return EINVAL. */ 1030 bp->b_error = EINVAL; 1031 goto done; 1032 } 1033 /* Otherwise, truncate request. */ 1034 bp->b_bcount = sz << DEV_BSHIFT; 1035 } 1036 1037 bp->b_rawblkno = bp->b_blkno; 1038 bp->b_cylinder = (bp->b_blkno * DEV_BSIZE) / 1039 (FD_BSIZE(fd) * fd->sc_type->seccyl); 1040 1041 #ifdef FD_DEBUG 1042 if (fdc_debug > 1) 1043 printf("fdstrategy: b_blkno %lld b_bcount %d blkno %lld cylin %d sz %d\n", 1044 (long long)bp->b_blkno, bp->b_bcount, 1045 (long long)fd->sc_blkno, bp->b_cylinder, sz); 1046 #endif 1047 1048 /* Queue transfer on drive, activate drive and controller if idle. */ 1049 s = splbio(); 1050 BUFQ_PUT(fd->sc_q, bp); 1051 callout_stop(&fd->sc_motoroff_ch); /* a good idea */ 1052 if (fd->sc_active == 0) 1053 fdstart(fd); 1054 #ifdef DIAGNOSTIC 1055 else { 1056 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1057 if (fdc->sc_state == DEVIDLE) { 1058 printf("fdstrategy: controller inactive\n"); 1059 fdcstart(fdc); 1060 } 1061 } 1062 #endif 1063 splx(s); 1064 return; 1065 1066 done: 1067 /* Toss transfer; we're done early. */ 1068 biodone(bp); 1069 } 1070 1071 void 1072 fdstart(struct fd_softc *fd) 1073 { 1074 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1075 int active = fdc->sc_drives.tqh_first != 0; 1076 1077 /* Link into controller queue. */ 1078 fd->sc_active = 1; 1079 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 1080 1081 /* If controller not already active, start it. */ 1082 if (!active) 1083 fdcstart(fdc); 1084 } 1085 1086 void 1087 fdfinish(struct fd_softc *fd, struct buf *bp) 1088 { 1089 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1090 1091 /* 1092 * Move this drive to the end of the queue to give others a `fair' 1093 * chance. We only force a switch if N operations are completed while 1094 * another drive is waiting to be serviced, since there is a long motor 1095 * startup delay whenever we switch. 1096 */ 1097 (void)BUFQ_GET(fd->sc_q); 1098 if (fd->sc_drivechain.tqe_next && ++fd->sc_ops >= 8) { 1099 fd->sc_ops = 0; 1100 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1101 if (BUFQ_PEEK(fd->sc_q) != NULL) { 1102 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 1103 } else 1104 fd->sc_active = 0; 1105 } 1106 bp->b_resid = fd->sc_bcount; 1107 fd->sc_skip = 0; 1108 1109 biodone(bp); 1110 /* turn off motor 5s from now */ 1111 callout_reset(&fd->sc_motoroff_ch, 5 * hz, fd_motor_off, fd); 1112 fdc->sc_state = DEVIDLE; 1113 } 1114 1115 void 1116 fdc_reset(struct fdc_softc *fdc) 1117 { 1118 bus_space_tag_t t = fdc->sc_bustag; 1119 bus_space_handle_t h = fdc->sc_handle; 1120 1121 if ((fdc->sc_flags & FDC_82077) != 0) { 1122 bus_space_write_1(t, h, fdc->sc_reg_dor, 1123 FDO_FDMAEN | FDO_MOEN(0)); 1124 } 1125 1126 bus_space_write_1(t, h, fdc->sc_reg_drs, DRS_RESET); 1127 delay(10); 1128 bus_space_write_1(t, h, fdc->sc_reg_drs, 0); 1129 1130 if ((fdc->sc_flags & FDC_82077) != 0) { 1131 bus_space_write_1(t, h, fdc->sc_reg_dor, 1132 FDO_FRST | FDO_FDMAEN | FDO_DS); 1133 } 1134 #ifdef FD_DEBUG 1135 if (fdc_debug) 1136 printf("fdc reset\n"); 1137 #endif 1138 } 1139 1140 void 1141 fd_set_motor(struct fdc_softc *fdc) 1142 { 1143 struct fd_softc *fd; 1144 u_char status; 1145 int n; 1146 1147 if ((fdc->sc_flags & FDC_82077) != 0) { 1148 status = FDO_FRST | FDO_FDMAEN; 1149 if ((fd = fdc->sc_drives.tqh_first) != NULL) 1150 status |= fd->sc_drive; 1151 1152 for (n = 0; n < 4; n++) 1153 if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) 1154 status |= FDO_MOEN(n); 1155 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1156 fdc->sc_reg_dor, status); 1157 #ifdef SUN4 1158 } else { 1159 1160 for (n = 0; n < 4; n++) { 1161 if ((fd = fdc->sc_fd[n]) != NULL && 1162 (fd->sc_flags & FD_MOTOR) != 0) { 1163 auxregbisc(AUXIO4C_FDS, 0); 1164 return; 1165 } 1166 } 1167 auxregbisc(0, AUXIO4C_FDS); 1168 #endif 1169 } 1170 } 1171 1172 void 1173 fd_motor_off(void *arg) 1174 { 1175 struct fd_softc *fd = arg; 1176 int s; 1177 1178 s = splbio(); 1179 fd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1180 fd_set_motor((struct fdc_softc *)device_parent(&fd->sc_dv)); 1181 splx(s); 1182 } 1183 1184 void 1185 fd_motor_on(void *arg) 1186 { 1187 struct fd_softc *fd = arg; 1188 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1189 int s; 1190 1191 s = splbio(); 1192 fd->sc_flags &= ~FD_MOTOR_WAIT; 1193 if ((fdc->sc_drives.tqh_first == fd) && (fdc->sc_state == MOTORWAIT)) 1194 (void)fdcstate(fdc); 1195 splx(s); 1196 } 1197 1198 /* 1199 * Get status bytes off the FDC after a command has finished 1200 * Returns the number of status bytes read; -1 on error. 1201 * The return value is also stored in `sc_nstat'. 1202 */ 1203 int 1204 fdcresult(struct fdc_softc *fdc) 1205 { 1206 bus_space_tag_t t = fdc->sc_bustag; 1207 bus_space_handle_t h = fdc->sc_handle; 1208 int j, n = 0; 1209 1210 for (j = 10000; j; j--) { 1211 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_msr); 1212 v &= (NE7_DIO | NE7_RQM | NE7_CB); 1213 if (v == NE7_RQM) 1214 return fdc->sc_nstat = n; 1215 if (v == (NE7_DIO | NE7_RQM | NE7_CB)) { 1216 if (n >= sizeof(fdc->sc_status)) { 1217 log(LOG_ERR, "fdcresult: overrun\n"); 1218 return -1; 1219 } 1220 fdc->sc_status[n++] = 1221 bus_space_read_1(t, h, fdc->sc_reg_fifo); 1222 } else 1223 delay(1); 1224 } 1225 1226 log(LOG_ERR, "fdcresult: timeout\n"); 1227 return fdc->sc_nstat = -1; 1228 } 1229 1230 /* 1231 * Write a command byte to the FDC. 1232 * Returns 0 on success; -1 on failure (i.e. timeout) 1233 */ 1234 int 1235 fdc_wrfifo(struct fdc_softc *fdc, uint8_t x) 1236 { 1237 bus_space_tag_t t = fdc->sc_bustag; 1238 bus_space_handle_t h = fdc->sc_handle; 1239 int i; 1240 1241 for (i = 100000; i-- > 0;) { 1242 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_msr); 1243 if ((v & (NE7_DIO|NE7_RQM)) == NE7_RQM) { 1244 /* The chip is ready */ 1245 bus_space_write_1(t, h, fdc->sc_reg_fifo, x); 1246 return 0; 1247 } 1248 delay(1); 1249 } 1250 return -1; 1251 } 1252 1253 int 1254 fdc_diskchange(struct fdc_softc *fdc) 1255 { 1256 1257 #ifdef SUN4 1258 if (CPU_ISSUN4M && (fdc->sc_flags & FDC_82077) != 0) { 1259 #endif 1260 bus_space_tag_t t = fdc->sc_bustag; 1261 bus_space_handle_t h = fdc->sc_handle; 1262 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_dir); 1263 return (v & FDI_DCHG) != 0; 1264 #ifdef SUN4 1265 } else if (CPU_ISSUN4C) { 1266 return (*AUXIO4C_REG & AUXIO4C_FDC) != 0; 1267 } 1268 return 0; 1269 #endif 1270 } 1271 1272 int 1273 fdopen(dev_t dev, int flags, int fmt, struct lwp *l) 1274 { 1275 int unit, pmask; 1276 struct fd_softc *fd; 1277 struct fd_type *type; 1278 1279 unit = FDUNIT(dev); 1280 if (unit >= fd_cd.cd_ndevs) 1281 return ENXIO; 1282 fd = fd_cd.cd_devs[unit]; 1283 if (fd == NULL) 1284 return ENXIO; 1285 type = fd_dev_to_type(fd, dev); 1286 if (type == NULL) 1287 return ENXIO; 1288 1289 if ((fd->sc_flags & FD_OPEN) != 0 && 1290 fd->sc_type != type) 1291 return EBUSY; 1292 1293 fd->sc_type = type; 1294 fd->sc_cylin = -1; 1295 fd->sc_flags |= FD_OPEN; 1296 1297 /* 1298 * Only update the disklabel if we're not open anywhere else. 1299 */ 1300 if (fd->sc_dk.dk_openmask == 0) 1301 fdgetdisklabel(dev); 1302 1303 pmask = (1 << DISKPART(dev)); 1304 1305 switch (fmt) { 1306 case S_IFCHR: 1307 fd->sc_dk.dk_copenmask |= pmask; 1308 break; 1309 1310 case S_IFBLK: 1311 fd->sc_dk.dk_bopenmask |= pmask; 1312 break; 1313 } 1314 fd->sc_dk.dk_openmask = 1315 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1316 1317 return 0; 1318 } 1319 1320 int 1321 fdclose(dev_t dev, int flags, int fmt, struct lwp *l) 1322 { 1323 struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; 1324 int pmask = (1 << DISKPART(dev)); 1325 1326 fd->sc_flags &= ~FD_OPEN; 1327 fd->sc_opts &= ~(FDOPT_NORETRY|FDOPT_SILENT); 1328 1329 switch (fmt) { 1330 case S_IFCHR: 1331 fd->sc_dk.dk_copenmask &= ~pmask; 1332 break; 1333 1334 case S_IFBLK: 1335 fd->sc_dk.dk_bopenmask &= ~pmask; 1336 break; 1337 } 1338 fd->sc_dk.dk_openmask = 1339 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1340 1341 return 0; 1342 } 1343 1344 int 1345 fdread(dev_t dev, struct uio *uio, int flag) 1346 { 1347 1348 return physio(fdstrategy, NULL, dev, B_READ, minphys, uio); 1349 } 1350 1351 int 1352 fdwrite(dev_t dev, struct uio *uio, int flag) 1353 { 1354 1355 return physio(fdstrategy, NULL, dev, B_WRITE, minphys, uio); 1356 } 1357 1358 void 1359 fdcstart(struct fdc_softc *fdc) 1360 { 1361 1362 #ifdef DIAGNOSTIC 1363 /* only got here if controller's drive queue was inactive; should 1364 be in idle state */ 1365 if (fdc->sc_state != DEVIDLE) { 1366 printf("fdcstart: not idle\n"); 1367 return; 1368 } 1369 #endif 1370 (void)fdcstate(fdc); 1371 } 1372 1373 void 1374 fdcstatus(struct fdc_softc *fdc, const char *s) 1375 { 1376 struct fd_softc *fd = fdc->sc_drives.tqh_first; 1377 int n; 1378 char bits[64]; 1379 1380 /* Just print last status */ 1381 n = fdc->sc_nstat; 1382 1383 #if 0 1384 /* 1385 * A 82072 seems to return <invalid command> on 1386 * gratuitous Sense Interrupt commands. 1387 */ 1388 if (n == 0 && (fdc->sc_flags & FDC_82077) != 0) { 1389 fdc_wrfifo(fdc, NE7CMD_SENSEI); 1390 (void)fdcresult(fdc); 1391 n = 2; 1392 } 1393 #endif 1394 1395 printf("%s: %s: state %d", 1396 fd ? fd->sc_dv.dv_xname : "fdc", s, fdc->sc_state); 1397 1398 switch (n) { 1399 case 0: 1400 printf("\n"); 1401 break; 1402 case 2: 1403 printf(" (st0 %s cyl %d)\n", 1404 bitmask_snprintf(fdc->sc_status[0], NE7_ST0BITS, 1405 bits, sizeof(bits)), fdc->sc_status[1]); 1406 break; 1407 case 7: 1408 printf(" (st0 %s", bitmask_snprintf(fdc->sc_status[0], 1409 NE7_ST0BITS, bits, sizeof(bits))); 1410 printf(" st1 %s", bitmask_snprintf(fdc->sc_status[1], 1411 NE7_ST1BITS, bits, sizeof(bits))); 1412 printf(" st2 %s", bitmask_snprintf(fdc->sc_status[2], 1413 NE7_ST2BITS, bits, sizeof(bits))); 1414 printf(" cyl %d head %d sec %d)\n", 1415 fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); 1416 break; 1417 #ifdef DIAGNOSTIC 1418 default: 1419 printf(" fdcstatus: weird size: %d\n", n); 1420 break; 1421 #endif 1422 } 1423 } 1424 1425 void 1426 fdctimeout(void *arg) 1427 { 1428 struct fdc_softc *fdc = arg; 1429 struct fd_softc *fd; 1430 int s; 1431 1432 s = splbio(); 1433 fd = fdc->sc_drives.tqh_first; 1434 if (fd == NULL) { 1435 printf("%s: timeout but no I/O pending: state %d, istatus=%d\n", 1436 fdc->sc_dev.dv_xname, 1437 fdc->sc_state, fdc->sc_istatus); 1438 fdc->sc_state = DEVIDLE; 1439 goto out; 1440 } 1441 1442 if (BUFQ_PEEK(fd->sc_q) != NULL) 1443 fdc->sc_state++; 1444 else 1445 fdc->sc_state = DEVIDLE; 1446 1447 (void)fdcstate(fdc); 1448 out: 1449 splx(s); 1450 1451 } 1452 1453 void 1454 fdcpseudointr(void *arg) 1455 { 1456 struct fdc_softc *fdc = arg; 1457 int s; 1458 1459 /* Just ensure it has the right spl. */ 1460 s = splbio(); 1461 (void)fdcstate(fdc); 1462 splx(s); 1463 } 1464 1465 1466 /* 1467 * hardware interrupt entry point: used only if no `fast trap' * (in-window) 1468 * handler is available. Unfortunately, we have no reliable way to 1469 * determine that the interrupt really came from the floppy controller; 1470 * just hope that the other devices that share this interrupt level 1471 * can do better.. 1472 */ 1473 int 1474 fdc_c_hwintr(void *arg) 1475 { 1476 struct fdc_softc *fdc = arg; 1477 bus_space_tag_t t = fdc->sc_bustag; 1478 bus_space_handle_t h = fdc->sc_handle; 1479 1480 switch (fdc->sc_itask) { 1481 case FDC_ITASK_NONE: 1482 return 0; 1483 case FDC_ITASK_SENSEI: 1484 if (fdc_wrfifo(fdc, NE7CMD_SENSEI) != 0 || fdcresult(fdc) == -1) 1485 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1486 else 1487 fdc->sc_istatus = FDC_ISTATUS_DONE; 1488 softintr_schedule(fdc->sc_sicookie); 1489 return 1; 1490 case FDC_ITASK_RESULT: 1491 if (fdcresult(fdc) == -1) 1492 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1493 else 1494 fdc->sc_istatus = FDC_ISTATUS_DONE; 1495 softintr_schedule(fdc->sc_sicookie); 1496 return 1; 1497 case FDC_ITASK_DMA: 1498 /* Proceed with pseudo-DMA below */ 1499 break; 1500 default: 1501 printf("fdc: stray hard interrupt: itask=%d\n", fdc->sc_itask); 1502 fdc->sc_istatus = FDC_ISTATUS_SPURIOUS; 1503 softintr_schedule(fdc->sc_sicookie); 1504 return 1; 1505 } 1506 1507 /* 1508 * Pseudo DMA in progress 1509 */ 1510 for (;;) { 1511 uint8_t msr; 1512 1513 msr = bus_space_read_1(t, h, fdc->sc_reg_msr); 1514 1515 if ((msr & NE7_RQM) == 0) 1516 /* That's all this round. */ 1517 break; 1518 1519 if ((msr & NE7_NDM) == 0) { 1520 /* Execution phase finished, get result. */ 1521 fdcresult(fdc); 1522 fdc->sc_istatus = FDC_ISTATUS_DONE; 1523 softintr_schedule(fdc->sc_sicookie); 1524 break; 1525 } 1526 1527 if (fdc->sc_tc == 0) 1528 /* For some reason the controller wants to transfer 1529 more data then what we want to transfer. */ 1530 panic("fdc: overrun"); 1531 1532 /* Another byte can be transferred */ 1533 if ((msr & NE7_DIO) != 0) 1534 *fdc->sc_data = 1535 bus_space_read_1(t, h, fdc->sc_reg_fifo); 1536 else 1537 bus_space_write_1(t, h, fdc->sc_reg_fifo, 1538 *fdc->sc_data); 1539 1540 fdc->sc_data++; 1541 if (--fdc->sc_tc == 0) { 1542 FTC_FLIP; 1543 break; 1544 } 1545 } 1546 return 1; 1547 } 1548 1549 void 1550 fdcswintr(void *arg) 1551 { 1552 struct fdc_softc *fdc = arg; 1553 1554 if (fdc->sc_istatus == FDC_ISTATUS_NONE) 1555 /* This (software) interrupt is not for us */ 1556 return; 1557 1558 switch (fdc->sc_istatus) { 1559 case FDC_ISTATUS_ERROR: 1560 printf("fdc: ierror status: state %d\n", fdc->sc_state); 1561 break; 1562 case FDC_ISTATUS_SPURIOUS: 1563 printf("fdc: spurious interrupt: state %d\n", fdc->sc_state); 1564 break; 1565 } 1566 1567 fdcstate(fdc); 1568 return; 1569 } 1570 1571 int 1572 fdcstate(struct fdc_softc *fdc) 1573 { 1574 1575 #define st0 fdc->sc_status[0] 1576 #define st1 fdc->sc_status[1] 1577 #define cyl fdc->sc_status[1] 1578 #define FDC_WRFIFO(fdc, c) do { \ 1579 if (fdc_wrfifo(fdc, (c))) { \ 1580 goto xxx; \ 1581 } \ 1582 } while(0) 1583 1584 struct fd_softc *fd; 1585 struct buf *bp; 1586 int read, head, sec, nblks; 1587 struct fd_type *type; 1588 struct ne7_fd_formb *finfo = NULL; 1589 1590 if (fdc->sc_istatus == FDC_ISTATUS_ERROR) { 1591 /* Prevent loop if the reset sequence produces errors */ 1592 if (fdc->sc_state != RESETCOMPLETE && 1593 fdc->sc_state != RECALWAIT && 1594 fdc->sc_state != RECALCOMPLETE) 1595 fdc->sc_state = DORESET; 1596 } 1597 1598 /* Clear I task/status field */ 1599 fdc->sc_istatus = FDC_ISTATUS_NONE; 1600 fdc->sc_itask = FDC_ITASK_NONE; 1601 1602 loop: 1603 /* Is there a drive for the controller to do a transfer with? */ 1604 fd = fdc->sc_drives.tqh_first; 1605 if (fd == NULL) { 1606 fdc->sc_state = DEVIDLE; 1607 return 0; 1608 } 1609 1610 /* Is there a transfer to this drive? If not, deactivate drive. */ 1611 bp = BUFQ_PEEK(fd->sc_q); 1612 if (bp == NULL) { 1613 fd->sc_ops = 0; 1614 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1615 fd->sc_active = 0; 1616 goto loop; 1617 } 1618 1619 if (bp->b_flags & B_FORMAT) 1620 finfo = (struct ne7_fd_formb *)bp->b_data; 1621 1622 switch (fdc->sc_state) { 1623 case DEVIDLE: 1624 fdc->sc_errors = 0; 1625 fd->sc_skip = 0; 1626 fd->sc_bcount = bp->b_bcount; 1627 fd->sc_blkno = (bp->b_blkno * DEV_BSIZE) / FD_BSIZE(fd); 1628 callout_stop(&fd->sc_motoroff_ch); 1629 if ((fd->sc_flags & FD_MOTOR_WAIT) != 0) { 1630 fdc->sc_state = MOTORWAIT; 1631 return 1; 1632 } 1633 if ((fd->sc_flags & FD_MOTOR) == 0) { 1634 /* Turn on the motor, being careful about pairing. */ 1635 struct fd_softc *ofd = fdc->sc_fd[fd->sc_drive ^ 1]; 1636 if (ofd && ofd->sc_flags & FD_MOTOR) { 1637 callout_stop(&ofd->sc_motoroff_ch); 1638 ofd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1639 } 1640 fd->sc_flags |= FD_MOTOR | FD_MOTOR_WAIT; 1641 fd_set_motor(fdc); 1642 fdc->sc_state = MOTORWAIT; 1643 if ((fdc->sc_flags & FDC_NEEDMOTORWAIT) != 0) { /*XXX*/ 1644 /* Allow .25s for motor to stabilize. */ 1645 callout_reset(&fd->sc_motoron_ch, hz / 4, 1646 fd_motor_on, fd); 1647 } else { 1648 fd->sc_flags &= ~FD_MOTOR_WAIT; 1649 goto loop; 1650 } 1651 return 1; 1652 } 1653 /* Make sure the right drive is selected. */ 1654 fd_set_motor(fdc); 1655 1656 if (fdc_diskchange(fdc)) 1657 goto dodskchg; 1658 1659 /*FALLTHROUGH*/ 1660 case DOSEEK: 1661 doseek: 1662 if ((fdc->sc_flags & FDC_EIS) && 1663 (bp->b_flags & B_FORMAT) == 0) { 1664 fd->sc_cylin = bp->b_cylinder; 1665 /* We use implied seek */ 1666 goto doio; 1667 } 1668 1669 if (fd->sc_cylin == bp->b_cylinder) 1670 goto doio; 1671 1672 fd->sc_cylin = -1; 1673 fdc->sc_state = SEEKWAIT; 1674 fdc->sc_nstat = 0; 1675 1676 iostat_seek(fd->sc_dk.dk_stats); 1677 1678 disk_busy(&fd->sc_dk); 1679 callout_reset(&fdc->sc_timo_ch, 4 * hz, fdctimeout, fdc); 1680 1681 /* specify command */ 1682 FDC_WRFIFO(fdc, NE7CMD_SPECIFY); 1683 FDC_WRFIFO(fdc, fd->sc_type->steprate); 1684 /* XXX head load time == 6ms */ 1685 FDC_WRFIFO(fdc, 6 | NE7_SPECIFY_NODMA); 1686 1687 fdc->sc_itask = FDC_ITASK_SENSEI; 1688 /* seek function */ 1689 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1690 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1691 FDC_WRFIFO(fdc, bp->b_cylinder * fd->sc_type->step); 1692 return 1; 1693 1694 case DODSKCHG: 1695 dodskchg: 1696 /* 1697 * Disk change: force a seek operation by going to cyl 1 1698 * followed by a recalibrate. 1699 */ 1700 disk_busy(&fd->sc_dk); 1701 callout_reset(&fdc->sc_timo_ch, 4 * hz, fdctimeout, fdc); 1702 fd->sc_cylin = -1; 1703 fdc->sc_nstat = 0; 1704 fdc->sc_state = DSKCHGWAIT; 1705 1706 fdc->sc_itask = FDC_ITASK_SENSEI; 1707 /* seek function */ 1708 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1709 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1710 FDC_WRFIFO(fdc, 1 * fd->sc_type->step); 1711 return 1; 1712 1713 case DSKCHGWAIT: 1714 callout_stop(&fdc->sc_timo_ch); 1715 disk_unbusy(&fd->sc_dk, 0, 0); 1716 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1717 cyl != 1 * fd->sc_type->step) { 1718 fdcstatus(fdc, "dskchg seek failed"); 1719 fdc->sc_state = DORESET; 1720 } else 1721 fdc->sc_state = DORECAL; 1722 1723 if (fdc_diskchange(fdc)) { 1724 printf("%s: cannot clear disk change status\n", 1725 fdc->sc_dev.dv_xname); 1726 fdc->sc_state = DORESET; 1727 } 1728 goto loop; 1729 1730 case DOIO: 1731 doio: 1732 if (finfo != NULL) 1733 fd->sc_skip = (char *)&(finfo->fd_formb_cylno(0)) - 1734 (char *)finfo; 1735 type = fd->sc_type; 1736 sec = fd->sc_blkno % type->seccyl; 1737 nblks = type->seccyl - sec; 1738 nblks = min(nblks, fd->sc_bcount / FD_BSIZE(fd)); 1739 nblks = min(nblks, FDC_MAXIOSIZE / FD_BSIZE(fd)); 1740 fd->sc_nblks = nblks; 1741 fd->sc_nbytes = finfo ? bp->b_bcount : nblks * FD_BSIZE(fd); 1742 head = sec / type->sectrac; 1743 sec -= head * type->sectrac; 1744 #ifdef DIAGNOSTIC 1745 {int block; 1746 block = (fd->sc_cylin * type->heads + head) * type->sectrac + 1747 sec; 1748 if (block != fd->sc_blkno) { 1749 printf("fdcintr: block %d != blkno %d\n", block, 1750 (int)fd->sc_blkno); 1751 #ifdef DDB 1752 Debugger(); 1753 #endif 1754 }} 1755 #endif 1756 read = bp->b_flags & B_READ; 1757 1758 /* Setup for pseudo DMA */ 1759 fdc->sc_data = (char *)bp->b_data + fd->sc_skip; 1760 fdc->sc_tc = fd->sc_nbytes; 1761 1762 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1763 fdc->sc_reg_drs, type->rate); 1764 #ifdef FD_DEBUG 1765 if (fdc_debug > 1) 1766 printf("fdcstate: doio: %s drive %d " 1767 "track %d head %d sec %d nblks %d\n", 1768 finfo ? "format" : 1769 (read ? "read" : "write"), 1770 fd->sc_drive, fd->sc_cylin, head, sec, nblks); 1771 #endif 1772 fdc->sc_state = IOCOMPLETE; 1773 fdc->sc_itask = FDC_ITASK_DMA; 1774 fdc->sc_nstat = 0; 1775 1776 disk_busy(&fd->sc_dk); 1777 1778 /* allow 3 seconds for operation */ 1779 callout_reset(&fdc->sc_timo_ch, 3 * hz, fdctimeout, fdc); 1780 1781 if (finfo != NULL) { 1782 /* formatting */ 1783 FDC_WRFIFO(fdc, NE7CMD_FORMAT); 1784 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1785 FDC_WRFIFO(fdc, finfo->fd_formb_secshift); 1786 FDC_WRFIFO(fdc, finfo->fd_formb_nsecs); 1787 FDC_WRFIFO(fdc, finfo->fd_formb_gaplen); 1788 FDC_WRFIFO(fdc, finfo->fd_formb_fillbyte); 1789 } else { 1790 if (read) 1791 FDC_WRFIFO(fdc, NE7CMD_READ); 1792 else 1793 FDC_WRFIFO(fdc, NE7CMD_WRITE); 1794 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1795 FDC_WRFIFO(fdc, fd->sc_cylin); /*track*/ 1796 FDC_WRFIFO(fdc, head); 1797 FDC_WRFIFO(fdc, sec + 1); /*sector+1*/ 1798 FDC_WRFIFO(fdc, type->secsize); /*sector size*/ 1799 FDC_WRFIFO(fdc, type->sectrac); /*secs/track*/ 1800 FDC_WRFIFO(fdc, type->gap1); /*gap1 size*/ 1801 FDC_WRFIFO(fdc, type->datalen); /*data length*/ 1802 } 1803 1804 return 1; /* will return later */ 1805 1806 case SEEKWAIT: 1807 callout_stop(&fdc->sc_timo_ch); 1808 fdc->sc_state = SEEKCOMPLETE; 1809 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1810 /* allow 1/50 second for heads to settle */ 1811 callout_reset(&fdc->sc_intr_ch, hz / 50, 1812 fdcpseudointr, fdc); 1813 return 1; /* will return later */ 1814 } 1815 /*FALLTHROUGH*/ 1816 case SEEKCOMPLETE: 1817 /* no data on seek */ 1818 disk_unbusy(&fd->sc_dk, 0, 0); 1819 1820 /* Make sure seek really happened. */ 1821 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1822 cyl != bp->b_cylinder * fd->sc_type->step) { 1823 #ifdef FD_DEBUG 1824 if (fdc_debug) 1825 fdcstatus(fdc, "seek failed"); 1826 #endif 1827 fdcretry(fdc); 1828 goto loop; 1829 } 1830 fd->sc_cylin = bp->b_cylinder; 1831 goto doio; 1832 1833 case IOTIMEDOUT: 1834 /* 1835 * Try to abort the I/O operation without resetting 1836 * the chip first. Poke TC and arrange to pick up 1837 * the timed out I/O command's status. 1838 */ 1839 fdc->sc_itask = FDC_ITASK_RESULT; 1840 fdc->sc_state = IOCLEANUPWAIT; 1841 fdc->sc_nstat = 0; 1842 /* 1/10 second should be enough */ 1843 callout_reset(&fdc->sc_timo_ch, hz / 10, fdctimeout, fdc); 1844 FTC_FLIP; 1845 return 1; 1846 1847 case IOCLEANUPTIMEDOUT: 1848 case SEEKTIMEDOUT: 1849 case RECALTIMEDOUT: 1850 case RESETTIMEDOUT: 1851 case DSKCHGTIMEDOUT: 1852 fdcstatus(fdc, "timeout"); 1853 1854 /* All other timeouts always roll through to a chip reset */ 1855 fdcretry(fdc); 1856 1857 /* Force reset, no matter what fdcretry() says */ 1858 fdc->sc_state = DORESET; 1859 goto loop; 1860 1861 case IOCLEANUPWAIT: /* IO FAILED, cleanup succeeded */ 1862 callout_stop(&fdc->sc_timo_ch); 1863 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1864 (bp->b_flags & B_READ)); 1865 fdcretry(fdc); 1866 goto loop; 1867 1868 case IOCOMPLETE: /* IO DONE, post-analyze */ 1869 callout_stop(&fdc->sc_timo_ch); 1870 1871 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1872 (bp->b_flags & B_READ)); 1873 1874 if (fdc->sc_nstat != 7 || st1 != 0 || 1875 ((st0 & 0xf8) != 0 && 1876 ((st0 & 0xf8) != 0x20 || (fdc->sc_cfg & CFG_EIS) == 0))) { 1877 #ifdef FD_DEBUG 1878 if (fdc_debug) { 1879 fdcstatus(fdc, bp->b_flags & B_READ ? 1880 "read failed" : "write failed"); 1881 printf("blkno %lld nblks %d nstat %d tc %d\n", 1882 (long long)fd->sc_blkno, fd->sc_nblks, 1883 fdc->sc_nstat, fdc->sc_tc); 1884 } 1885 #endif 1886 if (fdc->sc_nstat == 7 && 1887 (st1 & ST1_OVERRUN) == ST1_OVERRUN) { 1888 1889 /* 1890 * Silently retry overruns if no other 1891 * error bit is set. Adjust threshold. 1892 */ 1893 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1894 if (thr < 15) { 1895 thr++; 1896 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1897 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1898 #ifdef FD_DEBUG 1899 if (fdc_debug) 1900 printf("fdc: %d -> threshold\n", 1901 thr); 1902 #endif 1903 fdconf(fdc); 1904 fdc->sc_overruns = 0; 1905 } 1906 if (++fdc->sc_overruns < 3) { 1907 fdc->sc_state = DOIO; 1908 goto loop; 1909 } 1910 } 1911 fdcretry(fdc); 1912 goto loop; 1913 } 1914 if (fdc->sc_errors) { 1915 diskerr(bp, "fd", "soft error", LOG_PRINTF, 1916 fd->sc_skip / FD_BSIZE(fd), 1917 (struct disklabel *)NULL); 1918 printf("\n"); 1919 fdc->sc_errors = 0; 1920 } else { 1921 if (--fdc->sc_overruns < -20) { 1922 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1923 if (thr > 0) { 1924 thr--; 1925 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1926 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1927 #ifdef FD_DEBUG 1928 if (fdc_debug) 1929 printf("fdc: %d -> threshold\n", 1930 thr); 1931 #endif 1932 fdconf(fdc); 1933 } 1934 fdc->sc_overruns = 0; 1935 } 1936 } 1937 fd->sc_blkno += fd->sc_nblks; 1938 fd->sc_skip += fd->sc_nbytes; 1939 fd->sc_bcount -= fd->sc_nbytes; 1940 if (finfo == NULL && fd->sc_bcount > 0) { 1941 bp->b_cylinder = fd->sc_blkno / fd->sc_type->seccyl; 1942 goto doseek; 1943 } 1944 fdfinish(fd, bp); 1945 goto loop; 1946 1947 case DORESET: 1948 /* try a reset, keep motor on */ 1949 fd_set_motor(fdc); 1950 delay(100); 1951 fdc->sc_nstat = 0; 1952 fdc->sc_itask = FDC_ITASK_SENSEI; 1953 fdc->sc_state = RESETCOMPLETE; 1954 callout_reset(&fdc->sc_timo_ch, hz / 2, fdctimeout, fdc); 1955 fdc_reset(fdc); 1956 return 1; /* will return later */ 1957 1958 case RESETCOMPLETE: 1959 callout_stop(&fdc->sc_timo_ch); 1960 fdconf(fdc); 1961 1962 /* FALLTHROUGH */ 1963 case DORECAL: 1964 fdc->sc_state = RECALWAIT; 1965 fdc->sc_itask = FDC_ITASK_SENSEI; 1966 fdc->sc_nstat = 0; 1967 callout_reset(&fdc->sc_timo_ch, 5 * hz, fdctimeout, fdc); 1968 /* recalibrate function */ 1969 FDC_WRFIFO(fdc, NE7CMD_RECAL); 1970 FDC_WRFIFO(fdc, fd->sc_drive); 1971 return 1; /* will return later */ 1972 1973 case RECALWAIT: 1974 callout_stop(&fdc->sc_timo_ch); 1975 fdc->sc_state = RECALCOMPLETE; 1976 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1977 /* allow 1/30 second for heads to settle */ 1978 callout_reset(&fdc->sc_intr_ch, hz / 30, 1979 fdcpseudointr, fdc); 1980 return 1; /* will return later */ 1981 } 1982 1983 case RECALCOMPLETE: 1984 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || cyl != 0) { 1985 #ifdef FD_DEBUG 1986 if (fdc_debug) 1987 fdcstatus(fdc, "recalibrate failed"); 1988 #endif 1989 fdcretry(fdc); 1990 goto loop; 1991 } 1992 fd->sc_cylin = 0; 1993 goto doseek; 1994 1995 case MOTORWAIT: 1996 if (fd->sc_flags & FD_MOTOR_WAIT) 1997 return 1; /* time's not up yet */ 1998 goto doseek; 1999 2000 default: 2001 fdcstatus(fdc, "stray interrupt"); 2002 return 1; 2003 } 2004 #ifdef DIAGNOSTIC 2005 panic("fdcintr: impossible"); 2006 #endif 2007 2008 xxx: 2009 /* 2010 * We get here if the chip locks up in FDC_WRFIFO() 2011 * Cancel any operation and schedule a reset 2012 */ 2013 callout_stop(&fdc->sc_timo_ch); 2014 fdcretry(fdc); 2015 fdc->sc_state = DORESET; 2016 goto loop; 2017 2018 #undef st0 2019 #undef st1 2020 #undef cyl 2021 } 2022 2023 void 2024 fdcretry(struct fdc_softc *fdc) 2025 { 2026 struct fd_softc *fd; 2027 struct buf *bp; 2028 int error = EIO; 2029 2030 fd = fdc->sc_drives.tqh_first; 2031 bp = BUFQ_PEEK(fd->sc_q); 2032 2033 fdc->sc_overruns = 0; 2034 if (fd->sc_opts & FDOPT_NORETRY) 2035 goto fail; 2036 2037 switch (fdc->sc_errors) { 2038 case 0: 2039 if (fdc->sc_nstat == 7 && 2040 (fdc->sc_status[0] & 0xd8) == 0x40 && 2041 (fdc->sc_status[1] & 0x2) == 0x2) { 2042 printf("%s: read-only medium\n", fd->sc_dv.dv_xname); 2043 error = EROFS; 2044 goto failsilent; 2045 } 2046 /* try again */ 2047 fdc->sc_state = 2048 (fdc->sc_flags & FDC_EIS) ? DOIO : DOSEEK; 2049 break; 2050 2051 case 1: case 2: case 3: 2052 /* didn't work; try recalibrating */ 2053 fdc->sc_state = DORECAL; 2054 break; 2055 2056 case 4: 2057 if (fdc->sc_nstat == 7 && 2058 fdc->sc_status[0] == 0 && 2059 fdc->sc_status[1] == 0 && 2060 fdc->sc_status[2] == 0) { 2061 /* 2062 * We've retried a few times and we've got 2063 * valid status and all three status bytes 2064 * are zero. Assume this condition is the 2065 * result of no disk loaded into the drive. 2066 */ 2067 printf("%s: no medium?\n", fd->sc_dv.dv_xname); 2068 error = ENODEV; 2069 goto failsilent; 2070 } 2071 2072 /* still no go; reset the bastard */ 2073 fdc->sc_state = DORESET; 2074 break; 2075 2076 default: 2077 fail: 2078 if ((fd->sc_opts & FDOPT_SILENT) == 0) { 2079 diskerr(bp, "fd", "hard error", LOG_PRINTF, 2080 fd->sc_skip / FD_BSIZE(fd), 2081 (struct disklabel *)NULL); 2082 printf("\n"); 2083 fdcstatus(fdc, "controller status"); 2084 } 2085 2086 failsilent: 2087 bp->b_error = error; 2088 fdfinish(fd, bp); 2089 } 2090 fdc->sc_errors++; 2091 } 2092 2093 int 2094 fdioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l) 2095 { 2096 struct fd_softc *fd; 2097 struct fdc_softc *fdc; 2098 struct fdformat_parms *form_parms; 2099 struct fdformat_cmd *form_cmd; 2100 struct ne7_fd_formb *fd_formb; 2101 int il[FD_MAX_NSEC + 1]; 2102 int unit; 2103 int i, j; 2104 int error; 2105 2106 unit = FDUNIT(dev); 2107 if (unit >= fd_cd.cd_ndevs) 2108 return ENXIO; 2109 2110 fd = fd_cd.cd_devs[FDUNIT(dev)]; 2111 fdc = (struct fdc_softc *)device_parent(&fd->sc_dv); 2112 2113 switch (cmd) { 2114 case DIOCGDINFO: 2115 *(struct disklabel *)addr = *(fd->sc_dk.dk_label); 2116 return 0; 2117 2118 case DIOCWLABEL: 2119 if ((flag & FWRITE) == 0) 2120 return EBADF; 2121 /* XXX do something */ 2122 return 0; 2123 2124 case DIOCWDINFO: 2125 if ((flag & FWRITE) == 0) 2126 return EBADF; 2127 2128 error = setdisklabel(fd->sc_dk.dk_label, 2129 (struct disklabel *)addr, 0, 2130 fd->sc_dk.dk_cpulabel); 2131 if (error) 2132 return error; 2133 2134 error = writedisklabel(dev, fdstrategy, 2135 fd->sc_dk.dk_label, 2136 fd->sc_dk.dk_cpulabel); 2137 return error; 2138 2139 case DIOCLOCK: 2140 /* 2141 * Nothing to do here, really. 2142 */ 2143 return 0; 2144 2145 case DIOCEJECT: 2146 if (*(int *)addr == 0) { 2147 int part = DISKPART(dev); 2148 /* 2149 * Don't force eject: check that we are the only 2150 * partition open. If so, unlock it. 2151 */ 2152 if ((fd->sc_dk.dk_openmask & ~(1 << part)) != 0 || 2153 fd->sc_dk.dk_bopenmask + fd->sc_dk.dk_copenmask != 2154 fd->sc_dk.dk_openmask) { 2155 return EBUSY; 2156 } 2157 } 2158 /* FALLTHROUGH */ 2159 case ODIOCEJECT: 2160 if (fdc->sc_flags & FDC_NOEJECT) 2161 return EINVAL; 2162 fd_do_eject(fd); 2163 return 0; 2164 2165 case FDIOCGETFORMAT: 2166 form_parms = (struct fdformat_parms *)addr; 2167 form_parms->fdformat_version = FDFORMAT_VERSION; 2168 form_parms->nbps = 128 * (1 << fd->sc_type->secsize); 2169 form_parms->ncyl = fd->sc_type->cylinders; 2170 form_parms->nspt = fd->sc_type->sectrac; 2171 form_parms->ntrk = fd->sc_type->heads; 2172 form_parms->stepspercyl = fd->sc_type->step; 2173 form_parms->gaplen = fd->sc_type->gap2; 2174 form_parms->fillbyte = fd->sc_type->fillbyte; 2175 form_parms->interleave = fd->sc_type->interleave; 2176 switch (fd->sc_type->rate) { 2177 case FDC_500KBPS: 2178 form_parms->xfer_rate = 500 * 1024; 2179 break; 2180 case FDC_300KBPS: 2181 form_parms->xfer_rate = 300 * 1024; 2182 break; 2183 case FDC_250KBPS: 2184 form_parms->xfer_rate = 250 * 1024; 2185 break; 2186 default: 2187 return EINVAL; 2188 } 2189 return 0; 2190 2191 case FDIOCSETFORMAT: 2192 if ((flag & FWRITE) == 0) 2193 return EBADF; /* must be opened for writing */ 2194 2195 form_parms = (struct fdformat_parms *)addr; 2196 if (form_parms->fdformat_version != FDFORMAT_VERSION) 2197 return EINVAL;/* wrong version of formatting prog */ 2198 2199 i = form_parms->nbps >> 7; 2200 if ((form_parms->nbps & 0x7f) || ffs(i) == 0 || 2201 i & ~(1 << (ffs(i)-1))) 2202 /* not a power-of-two multiple of 128 */ 2203 return EINVAL; 2204 2205 switch (form_parms->xfer_rate) { 2206 case 500 * 1024: 2207 fd->sc_type->rate = FDC_500KBPS; 2208 break; 2209 case 300 * 1024: 2210 fd->sc_type->rate = FDC_300KBPS; 2211 break; 2212 case 250 * 1024: 2213 fd->sc_type->rate = FDC_250KBPS; 2214 break; 2215 default: 2216 return EINVAL; 2217 } 2218 2219 if (form_parms->nspt > FD_MAX_NSEC || 2220 form_parms->fillbyte > 0xff || 2221 form_parms->interleave > 0xff) 2222 return EINVAL; 2223 fd->sc_type->sectrac = form_parms->nspt; 2224 if (form_parms->ntrk != 2 && form_parms->ntrk != 1) 2225 return EINVAL; 2226 fd->sc_type->heads = form_parms->ntrk; 2227 fd->sc_type->seccyl = form_parms->nspt * form_parms->ntrk; 2228 fd->sc_type->secsize = ffs(i)-1; 2229 fd->sc_type->gap2 = form_parms->gaplen; 2230 fd->sc_type->cylinders = form_parms->ncyl; 2231 fd->sc_type->size = fd->sc_type->seccyl * form_parms->ncyl * 2232 form_parms->nbps / DEV_BSIZE; 2233 fd->sc_type->step = form_parms->stepspercyl; 2234 fd->sc_type->fillbyte = form_parms->fillbyte; 2235 fd->sc_type->interleave = form_parms->interleave; 2236 return 0; 2237 2238 case FDIOCFORMAT_TRACK: 2239 if((flag & FWRITE) == 0) 2240 /* must be opened for writing */ 2241 return EBADF; 2242 form_cmd = (struct fdformat_cmd *)addr; 2243 if (form_cmd->formatcmd_version != FDFORMAT_VERSION) 2244 /* wrong version of formatting prog */ 2245 return EINVAL; 2246 2247 if (form_cmd->head >= fd->sc_type->heads || 2248 form_cmd->cylinder >= fd->sc_type->cylinders) { 2249 return EINVAL; 2250 } 2251 2252 fd_formb = malloc(sizeof(struct ne7_fd_formb), 2253 M_TEMP, M_NOWAIT); 2254 if (fd_formb == 0) 2255 return ENOMEM; 2256 2257 fd_formb->head = form_cmd->head; 2258 fd_formb->cyl = form_cmd->cylinder; 2259 fd_formb->transfer_rate = fd->sc_type->rate; 2260 fd_formb->fd_formb_secshift = fd->sc_type->secsize; 2261 fd_formb->fd_formb_nsecs = fd->sc_type->sectrac; 2262 fd_formb->fd_formb_gaplen = fd->sc_type->gap2; 2263 fd_formb->fd_formb_fillbyte = fd->sc_type->fillbyte; 2264 2265 bzero(il, sizeof il); 2266 for (j = 0, i = 1; i <= fd_formb->fd_formb_nsecs; i++) { 2267 while (il[(j % fd_formb->fd_formb_nsecs) + 1]) 2268 j++; 2269 il[(j % fd_formb->fd_formb_nsecs) + 1] = i; 2270 j += fd->sc_type->interleave; 2271 } 2272 for (i = 0; i < fd_formb->fd_formb_nsecs; i++) { 2273 fd_formb->fd_formb_cylno(i) = form_cmd->cylinder; 2274 fd_formb->fd_formb_headno(i) = form_cmd->head; 2275 fd_formb->fd_formb_secno(i) = il[i + 1]; 2276 fd_formb->fd_formb_secsize(i) = fd->sc_type->secsize; 2277 } 2278 2279 error = fdformat(dev, fd_formb, l->l_proc); 2280 free(fd_formb, M_TEMP); 2281 return error; 2282 2283 case FDIOCGETOPTS: /* get drive options */ 2284 *(int *)addr = fd->sc_opts; 2285 return 0; 2286 2287 case FDIOCSETOPTS: /* set drive options */ 2288 fd->sc_opts = *(int *)addr; 2289 return 0; 2290 2291 #ifdef FD_DEBUG 2292 case _IO('f', 100): 2293 fdc_wrfifo(fdc, NE7CMD_DUMPREG); 2294 fdcresult(fdc); 2295 printf("fdc: dumpreg(%d regs): <", fdc->sc_nstat); 2296 for (i = 0; i < fdc->sc_nstat; i++) 2297 printf(" 0x%x", fdc->sc_status[i]); 2298 printf(">\n"); 2299 return 0; 2300 2301 case _IOW('f', 101, int): 2302 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 2303 fdc->sc_cfg |= (*(int *)addr & CFG_THRHLD_MASK); 2304 fdconf(fdc); 2305 return 0; 2306 2307 case _IO('f', 102): 2308 fdc_wrfifo(fdc, NE7CMD_SENSEI); 2309 fdcresult(fdc); 2310 printf("fdc: sensei(%d regs): <", fdc->sc_nstat); 2311 for (i=0; i< fdc->sc_nstat; i++) 2312 printf(" 0x%x", fdc->sc_status[i]); 2313 printf(">\n"); 2314 return 0; 2315 #endif 2316 default: 2317 return ENOTTY; 2318 } 2319 2320 #ifdef DIAGNOSTIC 2321 panic("fdioctl: impossible"); 2322 #endif 2323 } 2324 2325 int 2326 fdformat(dev_t dev, struct ne7_fd_formb *finfo, struct proc *p) 2327 { 2328 int rv = 0; 2329 struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; 2330 struct fd_type *type = fd->sc_type; 2331 struct buf *bp; 2332 2333 /* set up a buffer header for fdstrategy() */ 2334 bp = getiobuf_nowait(); 2335 if (bp == NULL) 2336 return ENOBUFS; 2337 2338 bp->b_vp = NULL; 2339 bp->b_flags = B_BUSY | B_PHYS | B_FORMAT; 2340 bp->b_proc = p; 2341 bp->b_dev = dev; 2342 2343 /* 2344 * Calculate a fake blkno, so fdstrategy() would initiate a 2345 * seek to the requested cylinder. 2346 */ 2347 bp->b_blkno = ((finfo->cyl * (type->sectrac * type->heads) 2348 + finfo->head * type->sectrac) * FD_BSIZE(fd)) 2349 / DEV_BSIZE; 2350 2351 bp->b_bcount = sizeof(struct fd_idfield_data) * finfo->fd_formb_nsecs; 2352 bp->b_data = (void *)finfo; 2353 2354 #ifdef FD_DEBUG 2355 if (fdc_debug) { 2356 int i; 2357 2358 printf("fdformat: blkno 0x%llx count %d\n", 2359 (unsigned long long)bp->b_blkno, bp->b_bcount); 2360 2361 printf("\tcyl:\t%d\n", finfo->cyl); 2362 printf("\thead:\t%d\n", finfo->head); 2363 printf("\tnsecs:\t%d\n", finfo->fd_formb_nsecs); 2364 printf("\tsshft:\t%d\n", finfo->fd_formb_secshift); 2365 printf("\tgaplen:\t%d\n", finfo->fd_formb_gaplen); 2366 printf("\ttrack data:"); 2367 for (i = 0; i < finfo->fd_formb_nsecs; i++) { 2368 printf(" [c%d h%d s%d]", 2369 finfo->fd_formb_cylno(i), 2370 finfo->fd_formb_headno(i), 2371 finfo->fd_formb_secno(i) ); 2372 if (finfo->fd_formb_secsize(i) != 2) 2373 printf("<sz:%d>", finfo->fd_formb_secsize(i)); 2374 } 2375 printf("\n"); 2376 } 2377 #endif 2378 2379 /* now do the format */ 2380 fdstrategy(bp); 2381 2382 /* ...and wait for it to complete */ 2383 rv = biowait(bp); 2384 putiobuf(bp); 2385 return rv; 2386 } 2387 2388 void 2389 fdgetdisklabel(dev_t dev) 2390 { 2391 int unit = FDUNIT(dev), i; 2392 struct fd_softc *fd = fd_cd.cd_devs[unit]; 2393 struct disklabel *lp = fd->sc_dk.dk_label; 2394 struct cpu_disklabel *clp = fd->sc_dk.dk_cpulabel; 2395 2396 bzero(lp, sizeof(struct disklabel)); 2397 bzero(lp, sizeof(struct cpu_disklabel)); 2398 2399 lp->d_type = DTYPE_FLOPPY; 2400 lp->d_secsize = FD_BSIZE(fd); 2401 lp->d_secpercyl = fd->sc_type->seccyl; 2402 lp->d_nsectors = fd->sc_type->sectrac; 2403 lp->d_ncylinders = fd->sc_type->cylinders; 2404 lp->d_ntracks = fd->sc_type->heads; /* Go figure... */ 2405 lp->d_secperunit = lp->d_secpercyl * lp->d_ncylinders; 2406 lp->d_rpm = 300; /* XXX like it matters... */ 2407 2408 strncpy(lp->d_typename, "floppy disk", sizeof(lp->d_typename)); 2409 strncpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); 2410 lp->d_interleave = 1; 2411 lp->d_flags = D_REMOVABLE; 2412 2413 lp->d_partitions[RAW_PART].p_offset = 0; 2414 lp->d_partitions[RAW_PART].p_size = lp->d_secpercyl * lp->d_ncylinders; 2415 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 2416 lp->d_npartitions = RAW_PART + 1; 2417 2418 lp->d_magic = DISKMAGIC; 2419 lp->d_magic2 = DISKMAGIC; 2420 lp->d_checksum = dkcksum(lp); 2421 2422 /* 2423 * Call the generic disklabel extraction routine. If there's 2424 * not a label there, fake it. 2425 */ 2426 if (readdisklabel(dev, fdstrategy, lp, clp) != NULL) { 2427 strncpy(lp->d_packname, "default label", 2428 sizeof(lp->d_packname)); 2429 /* 2430 * Reset the partition info; it might have gotten 2431 * trashed in readdisklabel(). 2432 * 2433 * XXX Why do we have to do this? readdisklabel() 2434 * should be safe... 2435 */ 2436 for (i = 0; i < MAXPARTITIONS; ++i) { 2437 lp->d_partitions[i].p_offset = 0; 2438 if (i == RAW_PART) { 2439 lp->d_partitions[i].p_size = 2440 lp->d_secpercyl * lp->d_ncylinders; 2441 lp->d_partitions[i].p_fstype = FS_BSDFFS; 2442 } else { 2443 lp->d_partitions[i].p_size = 0; 2444 lp->d_partitions[i].p_fstype = FS_UNUSED; 2445 } 2446 } 2447 lp->d_npartitions = RAW_PART + 1; 2448 } 2449 } 2450 2451 void 2452 fd_do_eject(struct fd_softc *fd) 2453 { 2454 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 2455 2456 #ifdef SUN4 2457 if (CPU_ISSUN4C) { 2458 auxregbisc(AUXIO4C_FDS, AUXIO4C_FEJ); 2459 delay(10); 2460 auxregbisc(AUXIO4C_FEJ, AUXIO4C_FDS); 2461 return; 2462 } 2463 if (CPU_ISSUN4M && (fdc->sc_flags & FDC_82077) != 0) { 2464 #endif 2465 bus_space_tag_t t = fdc->sc_bustag; 2466 bus_space_handle_t h = fdc->sc_handle; 2467 uint8_t dor = FDO_FRST | FDO_FDMAEN | FDO_MOEN(0); 2468 2469 bus_space_write_1(t, h, fdc->sc_reg_dor, dor | FDO_EJ); 2470 delay(10); 2471 bus_space_write_1(t, h, fdc->sc_reg_dor, FDO_FRST | FDO_DS); 2472 return; 2473 #ifdef SUN4 2474 } 2475 #endif 2476 } 2477 2478 /* ARGSUSED */ 2479 void 2480 fd_mountroot_hook(struct device *dev) 2481 { 2482 int c; 2483 2484 fd_do_eject((struct fd_softc *)dev); 2485 printf("Insert filesystem floppy and press return."); 2486 for (;;) { 2487 c = cngetc(); 2488 if ((c == '\r') || (c == '\n')) { 2489 printf("\n"); 2490 break; 2491 } 2492 } 2493 } 2494 2495 #ifdef MEMORY_DISK_HOOKS 2496 2497 #define FDMICROROOTSIZE ((2*18*80) << DEV_BSHIFT) 2498 2499 int 2500 fd_read_md_image(size_t *sizep, void **addrp) 2501 { 2502 struct buf buf, *bp = &buf; 2503 dev_t dev; 2504 off_t offset; 2505 char *addr; 2506 2507 dev = makedev(54,0); /* XXX */ 2508 2509 MALLOC(addr, void *, FDMICROROOTSIZE, M_DEVBUF, M_WAITOK); 2510 *addrp = addr; 2511 2512 if (fdopen(dev, 0, S_IFCHR, NULL)) 2513 panic("fd: mountroot: fdopen"); 2514 2515 offset = 0; 2516 2517 for (;;) { 2518 bp->b_dev = dev; 2519 bp->b_error = 0; 2520 bp->b_resid = 0; 2521 bp->b_proc = NULL; 2522 bp->b_flags = B_BUSY | B_PHYS | B_RAW | B_READ; 2523 bp->b_blkno = btodb(offset); 2524 bp->b_bcount = DEV_BSIZE; 2525 bp->b_data = addr; 2526 fdstrategy(bp); 2527 while ((bp->b_flags & B_DONE) == 0) { 2528 tsleep((void *)bp, PRIBIO + 1, "physio", 0); 2529 } 2530 if (bp->b_error) 2531 panic("fd: mountroot: fdread error %d", bp->b_error); 2532 2533 if (bp->b_resid != 0) 2534 break; 2535 2536 addr += DEV_BSIZE; 2537 offset += DEV_BSIZE; 2538 if (offset + DEV_BSIZE > FDMICROROOTSIZE) 2539 break; 2540 } 2541 (void)fdclose(dev, 0, S_IFCHR, NULL); 2542 *sizep = offset; 2543 fd_do_eject(fd_cd.cd_devs[FDUNIT(dev)]); 2544 return 0; 2545 } 2546 #endif /* MEMORY_DISK_HOOKS */ 2547 2548 static void 2549 fd_set_properties(struct fd_softc *fd) 2550 { 2551 prop_dictionary_t disk_info, odisk_info, geom; 2552 struct fd_type *fdt; 2553 int secsize; 2554 2555 fdt = fd->sc_deftype; 2556 2557 disk_info = prop_dictionary_create(); 2558 2559 geom = prop_dictionary_create(); 2560 2561 prop_dictionary_set_uint64(geom, "sectors-per-unit", 2562 fdt->size); 2563 2564 switch (fdt->secsize) { 2565 case 2: 2566 secsize = 512; 2567 break; 2568 case 3: 2569 secsize = 1024; 2570 break; 2571 default: 2572 secsize = 0; 2573 } 2574 2575 prop_dictionary_set_uint32(geom, "sector-size", 2576 secsize); 2577 2578 prop_dictionary_set_uint16(geom, "sectors-per-track", 2579 fdt->sectrac); 2580 2581 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 2582 fdt->heads); 2583 2584 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 2585 fdt->cylinders); 2586 2587 prop_dictionary_set(disk_info, "geometry", geom); 2588 prop_object_release(geom); 2589 2590 prop_dictionary_set(device_properties(&fd->sc_dv), 2591 "disk-info", disk_info); 2592 2593 /* 2594 * Don't release disk_info here; we keep a reference to it. 2595 * disk_detach() will release it when we go away. 2596 */ 2597 2598 odisk_info = fd->sc_dk.dk_info; 2599 fd->sc_dk.dk_info = disk_info; 2600 if (odisk_info) 2601 prop_object_release(odisk_info); 2602 } 2603
Indexes created Mon Sep 29 21:09:56 GMT 2025