fdc.c revision 1.10
1 /* $NetBSD: fdc.c,v 1.10 2007/03/25 09:29:11 jnemeth 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 1.10 2007/03/25 09:29:11 jnemeth 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 #ifdef SUN4U 164 #define FTC_FLIP \ 165 do { \ 166 auxio_fd_control(AUXIO_LED_FTC); \ 167 auxio_fd_control(0); \ 168 } while (0) 169 #else 170 #define FTC_FLIP 171 #endif 172 173 /* (mis)use device use flag to identify format operation */ 174 #define B_FORMAT B_DEVPRIVATE 175 176 #define FD_DEBUG 177 #ifdef FD_DEBUG 178 int fdc_debug = 0; 179 #endif 180 181 enum fdc_state { 182 DEVIDLE = 0, 183 MOTORWAIT, /* 1 */ 184 DOSEEK, /* 2 */ 185 SEEKWAIT, /* 3 */ 186 SEEKTIMEDOUT, /* 4 */ 187 SEEKCOMPLETE, /* 5 */ 188 DOIO, /* 6 */ 189 IOCOMPLETE, /* 7 */ 190 IOTIMEDOUT, /* 8 */ 191 IOCLEANUPWAIT, /* 9 */ 192 IOCLEANUPTIMEDOUT,/*10 */ 193 DORESET, /* 11 */ 194 RESETCOMPLETE, /* 12 */ 195 RESETTIMEDOUT, /* 13 */ 196 DORECAL, /* 14 */ 197 RECALWAIT, /* 15 */ 198 RECALTIMEDOUT, /* 16 */ 199 RECALCOMPLETE, /* 17 */ 200 DODSKCHG, /* 18 */ 201 DSKCHGWAIT, /* 19 */ 202 DSKCHGTIMEDOUT, /* 20 */ 203 }; 204 205 /* software state, per controller */ 206 struct fdc_softc { 207 struct device sc_dev; /* boilerplate */ 208 bus_space_tag_t sc_bustag; 209 210 struct callout sc_timo_ch; /* timeout callout */ 211 struct callout sc_intr_ch; /* pseudo-intr callout */ 212 213 struct fd_softc *sc_fd[4]; /* pointers to children */ 214 TAILQ_HEAD(drivehead, fd_softc) sc_drives; 215 enum fdc_state sc_state; 216 int sc_flags; 217 #define FDC_82077 0x01 218 #define FDC_NEEDHEADSETTLE 0x02 219 #define FDC_EIS 0x04 220 #define FDC_NEEDMOTORWAIT 0x08 221 #define FDC_NOEJECT 0x10 222 #define FDC_EBUS 0x20 223 int sc_errors; /* number of retries so far */ 224 int sc_overruns; /* number of DMA overruns */ 225 int sc_cfg; /* current configuration */ 226 struct fdcio sc_io; 227 #define sc_handle sc_io.fdcio_handle 228 #define sc_reg_msr sc_io.fdcio_reg_msr 229 #define sc_reg_fifo sc_io.fdcio_reg_fifo 230 #define sc_reg_dor sc_io.fdcio_reg_dor 231 #define sc_reg_dir sc_io.fdcio_reg_dir 232 #define sc_reg_drs sc_io.fdcio_reg_msr 233 #define sc_itask sc_io.fdcio_itask 234 #define sc_istatus sc_io.fdcio_istatus 235 #define sc_data sc_io.fdcio_data 236 #define sc_tc sc_io.fdcio_tc 237 #define sc_nstat sc_io.fdcio_nstat 238 #define sc_status sc_io.fdcio_status 239 #define sc_intrcnt sc_io.fdcio_intrcnt 240 241 void *sc_sicookie; /* softintr(9) cookie */ 242 }; 243 244 #ifdef SUN4 245 extern struct fdcio *fdciop; /* I/O descriptor used in fdintr.s */ 246 #endif 247 248 /* controller driver configuration */ 249 #ifdef SUN4 250 int fdcmatch_mainbus(struct device *, struct cfdata *, void*); 251 int fdcmatch_obio(struct device *, struct cfdata *, void *); 252 void fdcattach_mainbus(struct device *, struct device *, void *); 253 void fdcattach_obio(struct device *, struct device *, void *); 254 #elif SUN4U 255 int fdcmatch_sbus(struct device *, struct cfdata *, void *); 256 int fdcmatch_ebus(struct device *, struct cfdata *, void *); 257 void fdcattach_sbus(struct device *, struct device *, void *); 258 void fdcattach_ebus(struct device *, struct device *, void *); 259 #endif 260 261 int fdcattach(struct fdc_softc *, int); 262 263 #ifdef SUN4 264 CFATTACH_DECL(fdc_mainbus, sizeof(struct fdc_softc), 265 fdcmatch_mainbus, fdcattach_mainbus, NULL, NULL); 266 267 CFATTACH_DECL(fdc_obio, sizeof(struct fdc_softc), 268 fdcmatch_obio, fdcattach_obio, NULL, NULL); 269 #elif SUN4U 270 CFATTACH_DECL(fdc_sbus, sizeof(struct fdc_softc), 271 fdcmatch_sbus, fdcattach_sbus, NULL, NULL); 272 273 CFATTACH_DECL(fdc_ebus, sizeof(struct fdc_softc), 274 fdcmatch_ebus, fdcattach_ebus, NULL, NULL); 275 #endif 276 277 inline struct fd_type *fd_dev_to_type(struct fd_softc *, dev_t); 278 279 /* 280 * Floppies come in various flavors, e.g., 1.2MB vs 1.44MB; here is how 281 * we tell them apart. 282 */ 283 struct fd_type { 284 int sectrac; /* sectors per track */ 285 int heads; /* number of heads */ 286 int seccyl; /* sectors per cylinder */ 287 int secsize; /* size code for sectors */ 288 int datalen; /* data len when secsize = 0 */ 289 int steprate; /* step rate and head unload time */ 290 int gap1; /* gap len between sectors */ 291 int gap2; /* formatting gap */ 292 int cylinders; /* total num of cylinders */ 293 int size; /* size of disk in sectors */ 294 int step; /* steps per cylinder */ 295 int rate; /* transfer speed code */ 296 int fillbyte; /* format fill byte */ 297 int interleave; /* interleave factor (formatting) */ 298 const char *name; 299 }; 300 301 /* The order of entries in the following table is important -- BEWARE! */ 302 struct fd_type fd_types[] = { 303 { 18,2,36,2,0xff,0xcf,0x1b,0x6c,80,2880,1,FDC_500KBPS,0xf6,1, "1.44MB" }, /* 1.44MB diskette */ 304 { 9,2,18,2,0xff,0xdf,0x2a,0x50,80,1440,1,FDC_250KBPS,0xf6,1, "720KB" }, /* 3.5" 720kB diskette */ 305 { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,2,FDC_250KBPS,0xf6,1, "360KB/x" }, /* 360kB in 720kB drive */ 306 { 8,2,16,3,0xff,0xdf,0x35,0x74,77,1232,1,FDC_500KBPS,0xf6,1, "1.2MB/NEC" } /* 1.2 MB japanese format */ 307 }; 308 309 /* software state, per disk (with up to 4 disks per ctlr) */ 310 struct fd_softc { 311 struct device sc_dv; /* generic device info */ 312 struct disk sc_dk; /* generic disk info */ 313 314 struct fd_type *sc_deftype; /* default type descriptor */ 315 struct fd_type *sc_type; /* current type descriptor */ 316 317 struct callout sc_motoron_ch; 318 struct callout sc_motoroff_ch; 319 320 daddr_t sc_blkno; /* starting block number */ 321 int sc_bcount; /* byte count left */ 322 int sc_skip; /* bytes already transferred */ 323 int sc_nblks; /* number of blocks currently transferring */ 324 int sc_nbytes; /* number of bytes currently transferring */ 325 326 int sc_drive; /* physical unit number */ 327 int sc_flags; 328 #define FD_OPEN 0x01 /* it's open */ 329 #define FD_MOTOR 0x02 /* motor should be on */ 330 #define FD_MOTOR_WAIT 0x04 /* motor coming up */ 331 int sc_cylin; /* where we think the head is */ 332 int sc_opts; /* user-set options */ 333 334 void *sc_sdhook; /* shutdownhook cookie */ 335 336 TAILQ_ENTRY(fd_softc) sc_drivechain; 337 int sc_ops; /* I/O ops since last switch */ 338 struct bufq_state *sc_q;/* pending I/O requests */ 339 int sc_active; /* number of active I/O requests */ 340 }; 341 342 /* floppy driver configuration */ 343 int fdmatch(struct device *, struct cfdata *, void *); 344 void fdattach(struct device *, struct device *, void *); 345 346 CFATTACH_DECL(fd, sizeof(struct fd_softc), 347 fdmatch, fdattach, NULL, NULL); 348 349 extern struct cfdriver fd_cd; 350 351 dev_type_open(fdopen); 352 dev_type_close(fdclose); 353 dev_type_read(fdread); 354 dev_type_write(fdwrite); 355 dev_type_ioctl(fdioctl); 356 dev_type_strategy(fdstrategy); 357 358 const struct bdevsw fd_bdevsw = { 359 fdopen, fdclose, fdstrategy, fdioctl, nodump, nosize, D_DISK 360 }; 361 362 const struct cdevsw fd_cdevsw = { 363 fdopen, fdclose, fdread, fdwrite, fdioctl, 364 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 365 }; 366 367 void fdgetdisklabel(dev_t); 368 int fd_get_parms(struct fd_softc *); 369 void fdstrategy(struct buf *); 370 void fdstart(struct fd_softc *); 371 int fdprint(void *, const char *); 372 373 struct dkdriver fddkdriver = { fdstrategy, NULL }; 374 375 struct fd_type *fd_nvtotype(char *, int, int); 376 void fd_set_motor(struct fdc_softc *); 377 void fd_motor_off(void *); 378 void fd_motor_on(void *); 379 int fdcresult(struct fdc_softc *); 380 int fdc_wrfifo(struct fdc_softc *, uint8_t); 381 void fdcstart(struct fdc_softc *); 382 void fdcstatus(struct fdc_softc *, const char *); 383 void fdc_reset(struct fdc_softc *); 384 int fdc_diskchange(struct fdc_softc *); 385 void fdctimeout(void *); 386 void fdcpseudointr(void *); 387 int fdc_c_hwintr(void *); 388 void fdchwintr(void); 389 void fdcswintr(void *); 390 int fdcstate(struct fdc_softc *); 391 void fdcretry(struct fdc_softc *); 392 void fdfinish(struct fd_softc *, struct buf *); 393 int fdformat(dev_t, struct ne7_fd_formb *, struct proc *); 394 void fd_do_eject(struct fd_softc *); 395 void fd_mountroot_hook(struct device *); 396 static int fdconf(struct fdc_softc *); 397 static void establish_chip_type( 398 struct fdc_softc *, 399 bus_space_tag_t, 400 bus_addr_t, 401 bus_size_t, 402 bus_space_handle_t); 403 static void fd_set_properties(struct fd_softc *); 404 405 #ifdef MEMORY_DISK_HOOKS 406 int fd_read_md_image(size_t *, void **); 407 #endif 408 409 #ifdef SUN4 410 #define OBP_FDNAME (CPU_ISSUN4M ? "SUNW,fdtwo" : "fd") 411 412 int 413 fdcmatch_mainbus(struct device *parent, struct cfdata *match, void *aux) 414 { 415 struct mainbus_attach_args *ma = aux; 416 417 /* 418 * Floppy controller is on mainbus on sun4c. 419 */ 420 if (!CPU_ISSUN4C) 421 return 0; 422 423 /* sun4c PROMs call the controller "fd" */ 424 if (strcmp("fd", ma->ma_name) != 0) 425 return 0; 426 427 return bus_space_probe(ma->ma_bustag, 428 ma->ma_paddr, 429 1, /* probe size */ 430 0, /* offset */ 431 0, /* flags */ 432 NULL, NULL); 433 } 434 435 int 436 fdcmatch_obio(struct device *parent, struct cfdata *match, void *aux) 437 { 438 union obio_attach_args *uoba = aux; 439 struct sbus_attach_args *sa; 440 441 /* 442 * Floppy controller is on obio on sun4m. 443 */ 444 if (uoba->uoba_isobio4 != 0) 445 return 0; 446 447 sa = &uoba->uoba_sbus; 448 449 /* sun4m PROMs call the controller "SUNW,fdtwo" */ 450 if (strcmp("SUNW,fdtwo", sa->sa_name) != 0) 451 return 0; 452 453 return bus_space_probe(sa->sa_bustag, 454 sbus_bus_addr(sa->sa_bustag, 455 sa->sa_slot, sa->sa_offset), 456 1, /* probe size */ 457 0, /* offset */ 458 0, /* flags */ 459 NULL, NULL); 460 } 461 462 #elif SUN4U 463 464 int 465 fdcmatch_sbus(struct device *parent, struct cfdata *match, void *aux) 466 { 467 struct sbus_attach_args *sa = aux; 468 469 return strcmp("SUNW,fdtwo", sa->sa_name) == 0; 470 } 471 472 int 473 fdcmatch_ebus(struct device *parent, struct cfdata *match, void *aux) 474 { 475 struct ebus_attach_args *ea = aux; 476 477 return strcmp("fdthree", ea->ea_name) == 0; 478 } 479 #endif 480 481 static void 482 establish_chip_type(struct fdc_softc *fdc, 483 bus_space_tag_t tag, bus_addr_t addr, bus_size_t size, 484 bus_space_handle_t handle) 485 { 486 uint8_t v; 487 488 /* 489 * This hack from Chris Torek: apparently DOR really 490 * addresses MSR/DRS on a 82072. 491 * We used to rely on the VERSION command to tell the 492 * difference (which did not work). 493 */ 494 495 /* First, check the size of the register bank */ 496 if (size < 8) 497 /* It isn't a 82077 */ 498 return; 499 500 #ifdef SUN4 501 /* Then probe the DOR register offset */ 502 if (bus_space_probe(tag, addr, 503 1, /* probe size */ 504 FDREG77_DOR, /* offset */ 505 0, /* flags */ 506 NULL, NULL) == 0) { 507 508 /* It isn't a 82077 */ 509 return; 510 } 511 #endif 512 513 v = bus_space_read_1(tag, handle, FDREG77_DOR); 514 if (v == NE7_RQM) { 515 /* 516 * Value in DOR looks like it's really MSR 517 */ 518 bus_space_write_1(tag, handle, FDREG77_DOR, FDC_250KBPS); 519 v = bus_space_read_1(tag, handle, FDREG77_DOR); 520 if (v == NE7_RQM) { 521 /* 522 * The value in the DOR didn't stick; 523 * it isn't a 82077 524 */ 525 return; 526 } 527 } 528 529 fdc->sc_flags |= FDC_82077; 530 } 531 532 /* 533 * Arguments passed between fdcattach and fdprobe. 534 */ 535 struct fdc_attach_args { 536 int fa_drive; 537 struct fd_type *fa_deftype; 538 }; 539 540 /* 541 * Print the location of a disk drive (called just before attaching the 542 * the drive). If `fdc' is not NULL, the drive was found but was not 543 * in the system config file; print the drive name as well. 544 * Return QUIET (config_find ignores this if the device was configured) to 545 * avoid printing `fdN not configured' messages. 546 */ 547 int 548 fdprint(void *aux, const char *fdc) 549 { 550 register struct fdc_attach_args *fa = aux; 551 552 if (!fdc) 553 aprint_normal(" drive %d", fa->fa_drive); 554 return QUIET; 555 } 556 557 /* 558 * Configure several parameters and features on the FDC. 559 * Return 0 on success. 560 */ 561 static int 562 fdconf(struct fdc_softc *fdc) 563 { 564 int vroom; 565 566 if (fdc_wrfifo(fdc, NE7CMD_DUMPREG) || fdcresult(fdc) != 10) 567 return -1; 568 569 /* 570 * dumpreg[7] seems to be a motor-off timeout; set it to whatever 571 * the PROM thinks is appropriate. 572 */ 573 if ((vroom = fdc->sc_status[7]) == 0) 574 vroom = 0x64; 575 576 /* Configure controller to use FIFO and Implied Seek */ 577 if (fdc_wrfifo(fdc, NE7CMD_CFG) != 0) 578 return -1; 579 if (fdc_wrfifo(fdc, vroom) != 0) 580 return -1; 581 if (fdc_wrfifo(fdc, fdc->sc_cfg) != 0) 582 return -1; 583 if (fdc_wrfifo(fdc, 0) != 0) /* PRETRK */ 584 return -1; 585 /* No result phase for the NE7CMD_CFG command */ 586 587 if ((fdc->sc_flags & FDC_82077) != 0) { 588 /* Lock configuration across soft resets. */ 589 if (fdc_wrfifo(fdc, NE7CMD_LOCK | CFG_LOCK) != 0 || 590 fdcresult(fdc) != 1) { 591 #ifdef DEBUG 592 printf("fdconf: CFGLOCK failed"); 593 #endif 594 return -1; 595 } 596 } 597 598 return 0; 599 #if 0 600 if (fdc_wrfifo(fdc, NE7CMD_VERSION) == 0 && 601 fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x90) { 602 if (fdc_debug) 603 printf("[version cmd]"); 604 } 605 #endif 606 } 607 608 #ifdef SUN4 609 void 610 fdcattach_mainbus(struct device *parent, struct device *self, void *aux) 611 { 612 struct fdc_softc *fdc = (void *)self; 613 struct mainbus_attach_args *ma = aux; 614 615 fdc->sc_bustag = ma->ma_bustag; 616 617 if (bus_space_map( 618 ma->ma_bustag, 619 ma->ma_paddr, 620 ma->ma_size, 621 BUS_SPACE_MAP_LINEAR, 622 &fdc->sc_handle) != 0) { 623 printf("%s: cannot map registers\n", self->dv_xname); 624 return; 625 } 626 627 establish_chip_type(fdc, 628 ma->ma_bustag, 629 ma->ma_paddr, 630 ma->ma_size, 631 fdc->sc_handle); 632 633 if (fdcattach(fdc, ma->ma_pri) != 0) 634 bus_space_unmap(ma->ma_bustag, fdc->sc_handle, ma->ma_size); 635 } 636 637 void 638 fdcattach_obio(struct device *parent, struct device *self, void *aux) 639 { 640 struct fdc_softc *fdc = (void *)self; 641 union obio_attach_args *uoba = aux; 642 struct sbus_attach_args *sa = &uoba->uoba_sbus; 643 644 if (sa->sa_nintr == 0) { 645 printf(": no interrupt line configured\n"); 646 return; 647 } 648 649 fdc->sc_bustag = sa->sa_bustag; 650 651 if (sbus_bus_map(sa->sa_bustag, 652 sa->sa_slot, sa->sa_offset, sa->sa_size, 653 BUS_SPACE_MAP_LINEAR, &fdc->sc_handle) != 0) { 654 printf("%s: cannot map control registers\n", 655 self->dv_xname); 656 return; 657 } 658 659 establish_chip_type(fdc, 660 sa->sa_bustag, 661 sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset), 662 sa->sa_size, 663 fdc->sc_handle); 664 665 if (strcmp(prom_getpropstring(sa->sa_node, "status"), "disabled") == 0) { 666 print(": no drives attached\n"); 667 return; 668 } 669 670 if (fdcattach(fdc, sa->sa_pri) != 0) 671 bus_space_unmap(sa->sa_bustag, fdc->sc_handle, sa->sa_size); 672 } 673 674 #elif SUN4U 675 676 void 677 fdcattach_sbus(struct device *parent, struct device *self, void *aux) 678 { 679 struct fdc_softc *fdc = (void *)self; 680 struct sbus_attach_args *sa = aux; 681 682 if (sa->sa_nintr == 0) { 683 printf(": no interrupt line configured\n"); 684 return; 685 } 686 687 if (auxio_fd_control(0) != 0) { 688 printf(": can't attach before auxio\n"); 689 return; 690 } 691 692 fdc->sc_bustag = sa->sa_bustag; 693 694 if (bus_space_map(sa->sa_bustag, BUS_ADDR(sa->sa_slot, sa->sa_offset), 695 sa->sa_size, 0, &fdc->sc_handle) != 0) { 696 printf(": cannot map control registers\n"); 697 return; 698 } 699 700 establish_chip_type(fdc, 701 sa->sa_bustag, 702 BUS_ADDR(sa->sa_slot, sa->sa_offset), 703 sa->sa_size, 704 fdc->sc_handle); 705 706 if (strcmp(prom_getpropstring(sa->sa_node, "status"), "disabled") == 0) { 707 printf(": no drives attached\n"); 708 return; 709 } 710 711 if (prom_getproplen(sa->sa_node, "manual") >= 0) 712 fdc->sc_flags |= FDC_NOEJECT; 713 714 715 if (fdcattach(fdc, sa->sa_pri) != 0) 716 bus_space_unmap(sa->sa_bustag, fdc->sc_handle, sa->sa_size); 717 } 718 719 void 720 fdcattach_ebus(struct device *parent, struct device *self, void *aux) 721 { 722 struct fdc_softc *fdc = (void *)self; 723 struct ebus_attach_args *ea = aux; 724 int map_vaddr; 725 726 if (ea->ea_nintr == 0) { 727 printf(": no interrupt line configured\n"); 728 return; 729 } 730 731 if (ea->ea_nreg < 3) { 732 printf(": expected 3 registers, only got %d\n", 733 ea->ea_nreg); 734 return; 735 } 736 737 fdc->sc_bustag = ea->ea_bustag; 738 739 if (ea->ea_nvaddr > 0) { 740 sparc_promaddr_to_handle(ea->ea_bustag, 741 ea->ea_vaddr[0], &fdc->sc_handle); 742 map_vaddr = 1; 743 } else if (bus_space_map(fdc->sc_bustag, 744 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 745 ea->ea_reg[0].size, 0, &fdc->sc_handle) == 0) { 746 map_vaddr = 0; 747 } else { 748 printf(": can't map control registers\n"); 749 return; 750 } 751 752 establish_chip_type(fdc, 753 fdc->sc_bustag, 754 map_vaddr ? ea->ea_vaddr[0] : 755 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 756 ea->ea_reg[0].size, 757 fdc->sc_handle); 758 759 fdc->sc_flags |= FDC_EBUS; 760 761 if (prom_getproplen(ea->ea_node, "manual") >= 0) 762 fdc->sc_flags |= FDC_NOEJECT; 763 764 if (fdcattach(fdc, ea->ea_intr[0]) != 0) 765 if (map_vaddr == 0) 766 bus_space_unmap(ea->ea_bustag, fdc->sc_handle, 767 ea->ea_reg[0].size); 768 } 769 #endif 770 771 int 772 fdcattach(struct fdc_softc *fdc, int pri) 773 { 774 struct fdc_attach_args fa; 775 int drive_attached; 776 char code; 777 778 callout_init(&fdc->sc_timo_ch); 779 callout_init(&fdc->sc_intr_ch); 780 781 fdc->sc_state = DEVIDLE; 782 fdc->sc_itask = FDC_ITASK_NONE; 783 fdc->sc_istatus = FDC_ISTATUS_NONE; 784 fdc->sc_flags |= FDC_EIS; 785 TAILQ_INIT(&fdc->sc_drives); 786 787 if ((fdc->sc_flags & FDC_82077) != 0) { 788 fdc->sc_reg_msr = FDREG77_MSR; 789 fdc->sc_reg_fifo = FDREG77_FIFO; 790 fdc->sc_reg_dor = FDREG77_DOR; 791 fdc->sc_reg_dir = FDREG77_DIR; 792 code = '7'; 793 fdc->sc_flags |= FDC_NEEDMOTORWAIT; 794 } else { 795 fdc->sc_reg_msr = FDREG72_MSR; 796 fdc->sc_reg_fifo = FDREG72_FIFO; 797 fdc->sc_reg_dor = 0; 798 code = '2'; 799 } 800 801 /* 802 * Configure controller; enable FIFO, Implied seek, no POLL mode?. 803 * Note: CFG_EFIFO is active-low, initial threshold value: 8 804 */ 805 fdc->sc_cfg = CFG_EIS|/*CFG_EFIFO|*/CFG_POLL|(8 & CFG_THRHLD_MASK); 806 if (fdconf(fdc) != 0) { 807 printf(": no drives attached\n"); 808 return -1; 809 } 810 811 #ifdef SUN4 812 fdc->sc_sicookie = softintr_establish(IPL_BIO, fdcswintr, fdc); 813 #elif SUN4U 814 fdc->sc_sicookie = softintr_establish(IPL_FDSOFT, fdcswintr, fdc); 815 #endif 816 if (fdc->sc_sicookie == NULL) { 817 printf("\n%s: cannot register soft interrupt handler\n", 818 fdc->sc_dev.dv_xname); 819 callout_stop(&fdc->sc_timo_ch); 820 callout_stop(&fdc->sc_intr_ch); 821 return -1; 822 } 823 #ifdef SUN4 824 printf(" softpri %d: chip 8207%c\n", IPL_SOFTFDC, code); 825 #elif SUN4U 826 printf(" softpri %d: chip 8207%c", PIL_FDSOFT, code); 827 if (fdc->sc_flags & FDC_NOEJECT) 828 printf(": manual eject"); 829 printf("\n"); 830 #endif 831 832 #ifdef SUN4 833 fdciop = &fdc->sc_io; 834 if (bus_intr_establish2(fdc->sc_bustag, pri, 0 835 fdc_c_hwintr, fdc, fdchwintr) == NULL) { 836 #elif SUN4U 837 if (bus_intr_establish(fdc->sc_bustag, pri, IPL_BIO, 838 fdc_c_hwintr, fdc) == NULL) { 839 #endif 840 printf("\n%s: cannot register interrupt handler\n", 841 fdc->sc_dev.dv_xname); 842 callout_stop(&fdc->sc_timo_ch); 843 callout_stop(&fdc->sc_intr_ch); 844 softintr_disestablish(fdc->sc_sicookie); 845 return -1; 846 } 847 848 evcnt_attach_dynamic(&fdc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 849 fdc->sc_dev.dv_xname, "intr"); 850 851 /* physical limit: four drives per controller. */ 852 drive_attached = 0; 853 for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) { 854 fa.fa_deftype = NULL; /* unknown */ 855 fa.fa_deftype = &fd_types[0]; /* XXX */ 856 if (config_found(&fdc->sc_dev, (void *)&fa, fdprint) != NULL) 857 drive_attached = 1; 858 } 859 860 if (drive_attached == 0) { 861 /* XXX - dis-establish interrupts here */ 862 /* return -1; */ 863 } 864 865 return 0; 866 } 867 868 int 869 fdmatch(struct device *parent, struct cfdata *match, void *aux) 870 { 871 struct fdc_softc *fdc = (void *)parent; 872 bus_space_tag_t t = fdc->sc_bustag; 873 bus_space_handle_t h = fdc->sc_handle; 874 struct fdc_attach_args *fa = aux; 875 int drive = fa->fa_drive; 876 int n, ok; 877 878 if (drive > 0) 879 /* XXX - for now, punt on more than one drive */ 880 return 0; 881 882 if ((fdc->sc_flags & FDC_82077) != 0) { 883 /* select drive and turn on motor */ 884 bus_space_write_1(t, h, fdc->sc_reg_dor, 885 drive | FDO_FRST | FDO_MOEN(drive)); 886 /* wait for motor to spin up */ 887 delay(250000); 888 #ifdef SUN4 889 } else { 890 auxregbisc(AUXIO4C_FDS, 0); 891 #endif 892 } 893 fdc->sc_nstat = 0; 894 fdc_wrfifo(fdc, NE7CMD_RECAL); 895 fdc_wrfifo(fdc, drive); 896 897 /* Wait for recalibration to complete */ 898 for (n = 0; n < 10000; n++) { 899 uint8_t v; 900 901 delay(1000); 902 v = bus_space_read_1(t, h, fdc->sc_reg_msr); 903 if ((v & (NE7_RQM|NE7_DIO|NE7_CB)) == NE7_RQM) { 904 /* wait a bit longer till device *really* is ready */ 905 delay(100000); 906 if (fdc_wrfifo(fdc, NE7CMD_SENSEI)) 907 break; 908 if (fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x80) 909 /* 910 * Got `invalid command'; we interpret it 911 * to mean that the re-calibrate hasn't in 912 * fact finished yet 913 */ 914 continue; 915 break; 916 } 917 } 918 n = fdc->sc_nstat; 919 #ifdef FD_DEBUG 920 if (fdc_debug) { 921 int i; 922 printf("fdprobe: %d stati:", n); 923 for (i = 0; i < n; i++) 924 printf(" 0x%x", fdc->sc_status[i]); 925 printf("\n"); 926 } 927 #endif 928 ok = (n == 2 && (fdc->sc_status[0] & 0xf8) == 0x20) ? 1 : 0; 929 930 /* turn off motor */ 931 if ((fdc->sc_flags & FDC_82077) != 0) { 932 /* deselect drive and turn motor off */ 933 bus_space_write_1(t, h, fdc->sc_reg_dor, FDO_FRST | FDO_DS); 934 #ifdef SUN4 935 } else { 936 auxregbisc(0, AUXIO4C_FDS); 937 #endif 938 } 939 940 return ok; 941 } 942 943 /* 944 * Controller is working, and drive responded. Attach it. 945 */ 946 void 947 fdattach(struct device *parent, struct device *self, void *aux) 948 { 949 struct fdc_softc *fdc = (void *)parent; 950 struct fd_softc *fd = (void *)self; 951 struct fdc_attach_args *fa = aux; 952 struct fd_type *type = fa->fa_deftype; 953 int drive = fa->fa_drive; 954 955 callout_init(&fd->sc_motoron_ch); 956 callout_init(&fd->sc_motoroff_ch); 957 958 /* XXX Allow `flags' to override device type? */ 959 960 if (type) 961 printf(": %s %d cyl, %d head, %d sec\n", type->name, 962 type->cylinders, type->heads, type->sectrac); 963 else 964 printf(": density unknown\n"); 965 966 bufq_alloc(&fd->sc_q, "disksort", BUFQ_SORT_CYLINDER); 967 fd->sc_cylin = -1; 968 fd->sc_drive = drive; 969 fd->sc_deftype = type; 970 fdc->sc_fd[drive] = fd; 971 972 fdc_wrfifo(fdc, NE7CMD_SPECIFY); 973 fdc_wrfifo(fdc, type->steprate); 974 /* XXX head load time == 6ms */ 975 fdc_wrfifo(fdc, 6 | NE7_SPECIFY_NODMA); 976 977 /* 978 * Initialize and attach the disk structure. 979 */ 980 fd->sc_dk.dk_name = fd->sc_dv.dv_xname; 981 fd->sc_dk.dk_driver = &fddkdriver; 982 disk_attach(&fd->sc_dk); 983 984 /* 985 * Establish a mountroot_hook anyway in case we booted 986 * with RB_ASKNAME and get selected as the boot device. 987 */ 988 mountroothook_establish(fd_mountroot_hook, &fd->sc_dv); 989 990 fd_set_properties(fd); 991 992 /* Make sure the drive motor gets turned off at shutdown time. */ 993 fd->sc_sdhook = shutdownhook_establish(fd_motor_off, fd); 994 } 995 996 inline struct fd_type * 997 fd_dev_to_type(struct fd_softc *fd, dev_t dev) 998 { 999 int type = FDTYPE(dev); 1000 1001 if (type > (sizeof(fd_types) / sizeof(fd_types[0]))) 1002 return NULL; 1003 return type ? &fd_types[type - 1] : fd->sc_deftype; 1004 } 1005 1006 void 1007 fdstrategy(struct buf *bp) 1008 { 1009 struct fd_softc *fd; 1010 int unit = FDUNIT(bp->b_dev); 1011 int sz; 1012 int s; 1013 1014 /* Valid unit, controller, and request? */ 1015 if (unit >= fd_cd.cd_ndevs || 1016 (fd = fd_cd.cd_devs[unit]) == 0 || 1017 bp->b_blkno < 0 || 1018 (((bp->b_bcount % FD_BSIZE(fd)) != 0 || 1019 (bp->b_blkno * DEV_BSIZE) % FD_BSIZE(fd) != 0) && 1020 (bp->b_flags & B_FORMAT) == 0)) { 1021 bp->b_error = EINVAL; 1022 goto bad; 1023 } 1024 1025 /* If it's a null transfer, return immediately. */ 1026 if (bp->b_bcount == 0) 1027 goto done; 1028 1029 sz = howmany(bp->b_bcount, DEV_BSIZE); 1030 1031 if (bp->b_blkno + sz > (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd)) { 1032 sz = (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd) 1033 - bp->b_blkno; 1034 if (sz == 0) { 1035 /* If exactly at end of disk, return EOF. */ 1036 bp->b_resid = bp->b_bcount; 1037 goto done; 1038 } 1039 if (sz < 0) { 1040 /* If past end of disk, return EINVAL. */ 1041 bp->b_error = EINVAL; 1042 goto bad; 1043 } 1044 /* Otherwise, truncate request. */ 1045 bp->b_bcount = sz << DEV_BSHIFT; 1046 } 1047 1048 bp->b_rawblkno = bp->b_blkno; 1049 bp->b_cylinder = (bp->b_blkno * DEV_BSIZE) / 1050 (FD_BSIZE(fd) * fd->sc_type->seccyl); 1051 1052 #ifdef FD_DEBUG 1053 if (fdc_debug > 1) 1054 printf("fdstrategy: b_blkno %lld b_bcount %d blkno %lld cylin %d sz %d\n", 1055 (long long)bp->b_blkno, bp->b_bcount, 1056 (long long)fd->sc_blkno, bp->b_cylinder, sz); 1057 #endif 1058 1059 /* Queue transfer on drive, activate drive and controller if idle. */ 1060 s = splbio(); 1061 BUFQ_PUT(fd->sc_q, bp); 1062 callout_stop(&fd->sc_motoroff_ch); /* a good idea */ 1063 if (fd->sc_active == 0) 1064 fdstart(fd); 1065 #ifdef DIAGNOSTIC 1066 else { 1067 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1068 if (fdc->sc_state == DEVIDLE) { 1069 printf("fdstrategy: controller inactive\n"); 1070 fdcstart(fdc); 1071 } 1072 } 1073 #endif 1074 splx(s); 1075 return; 1076 1077 bad: 1078 bp->b_flags |= B_ERROR; 1079 done: 1080 /* Toss transfer; we're done early. */ 1081 biodone(bp); 1082 } 1083 1084 void 1085 fdstart(struct fd_softc *fd) 1086 { 1087 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1088 int active = fdc->sc_drives.tqh_first != 0; 1089 1090 /* Link into controller queue. */ 1091 fd->sc_active = 1; 1092 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 1093 1094 /* If controller not already active, start it. */ 1095 if (!active) 1096 fdcstart(fdc); 1097 } 1098 1099 void 1100 fdfinish(struct fd_softc *fd, struct buf *bp) 1101 { 1102 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1103 1104 /* 1105 * Move this drive to the end of the queue to give others a `fair' 1106 * chance. We only force a switch if N operations are completed while 1107 * another drive is waiting to be serviced, since there is a long motor 1108 * startup delay whenever we switch. 1109 */ 1110 (void)BUFQ_GET(fd->sc_q); 1111 if (fd->sc_drivechain.tqe_next && ++fd->sc_ops >= 8) { 1112 fd->sc_ops = 0; 1113 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1114 if (BUFQ_PEEK(fd->sc_q) != NULL) { 1115 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 1116 } else 1117 fd->sc_active = 0; 1118 } 1119 bp->b_resid = fd->sc_bcount; 1120 fd->sc_skip = 0; 1121 1122 biodone(bp); 1123 /* turn off motor 5s from now */ 1124 callout_reset(&fd->sc_motoroff_ch, 5 * hz, fd_motor_off, fd); 1125 fdc->sc_state = DEVIDLE; 1126 } 1127 1128 void 1129 fdc_reset(struct fdc_softc *fdc) 1130 { 1131 bus_space_tag_t t = fdc->sc_bustag; 1132 bus_space_handle_t h = fdc->sc_handle; 1133 1134 if ((fdc->sc_flags & FDC_82077) != 0) { 1135 bus_space_write_1(t, h, fdc->sc_reg_dor, 1136 FDO_FDMAEN | FDO_MOEN(0)); 1137 } 1138 1139 bus_space_write_1(t, h, fdc->sc_reg_drs, DRS_RESET); 1140 delay(10); 1141 bus_space_write_1(t, h, fdc->sc_reg_drs, 0); 1142 1143 if ((fdc->sc_flags & FDC_82077) != 0) { 1144 bus_space_write_1(t, h, fdc->sc_reg_dor, 1145 FDO_FRST | FDO_FDMAEN | FDO_DS); 1146 } 1147 #ifdef FD_DEBUG 1148 if (fdc_debug) 1149 printf("fdc reset\n"); 1150 #endif 1151 } 1152 1153 void 1154 fd_set_motor(struct fdc_softc *fdc) 1155 { 1156 struct fd_softc *fd; 1157 u_char status; 1158 int n; 1159 1160 if ((fdc->sc_flags & FDC_82077) != 0) { 1161 status = FDO_FRST | FDO_FDMAEN; 1162 if ((fd = fdc->sc_drives.tqh_first) != NULL) 1163 status |= fd->sc_drive; 1164 1165 for (n = 0; n < 4; n++) 1166 if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) 1167 status |= FDO_MOEN(n); 1168 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1169 fdc->sc_reg_dor, status); 1170 #ifdef SUN4 1171 } else { 1172 1173 for (n = 0; n < 4; n++) { 1174 if ((fd = fdc->sc_fd[n]) != NULL && 1175 (fd->sc_flags & FD_MOTOR) != 0) { 1176 auxregbisc(AUXIO4C_FDS, 0); 1177 return; 1178 } 1179 } 1180 auxregbisc(0, AUXIO4C_FDS); 1181 #endif 1182 } 1183 } 1184 1185 void 1186 fd_motor_off(void *arg) 1187 { 1188 struct fd_softc *fd = arg; 1189 int s; 1190 1191 s = splbio(); 1192 fd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1193 fd_set_motor((struct fdc_softc *)device_parent(&fd->sc_dv)); 1194 splx(s); 1195 } 1196 1197 void 1198 fd_motor_on(void *arg) 1199 { 1200 struct fd_softc *fd = arg; 1201 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1202 int s; 1203 1204 s = splbio(); 1205 fd->sc_flags &= ~FD_MOTOR_WAIT; 1206 if ((fdc->sc_drives.tqh_first == fd) && (fdc->sc_state == MOTORWAIT)) 1207 (void)fdcstate(fdc); 1208 splx(s); 1209 } 1210 1211 /* 1212 * Get status bytes off the FDC after a command has finished 1213 * Returns the number of status bytes read; -1 on error. 1214 * The return value is also stored in `sc_nstat'. 1215 */ 1216 int 1217 fdcresult(struct fdc_softc *fdc) 1218 { 1219 bus_space_tag_t t = fdc->sc_bustag; 1220 bus_space_handle_t h = fdc->sc_handle; 1221 int j, n = 0; 1222 1223 for (j = 10000; j; j--) { 1224 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_msr); 1225 v &= (NE7_DIO | NE7_RQM | NE7_CB); 1226 if (v == NE7_RQM) 1227 return fdc->sc_nstat = n; 1228 if (v == (NE7_DIO | NE7_RQM | NE7_CB)) { 1229 if (n >= sizeof(fdc->sc_status)) { 1230 log(LOG_ERR, "fdcresult: overrun\n"); 1231 return -1; 1232 } 1233 fdc->sc_status[n++] = 1234 bus_space_read_1(t, h, fdc->sc_reg_fifo); 1235 } else 1236 delay(1); 1237 } 1238 1239 log(LOG_ERR, "fdcresult: timeout\n"); 1240 return fdc->sc_nstat = -1; 1241 } 1242 1243 /* 1244 * Write a command byte to the FDC. 1245 * Returns 0 on success; -1 on failure (i.e. timeout) 1246 */ 1247 int 1248 fdc_wrfifo(struct fdc_softc *fdc, uint8_t x) 1249 { 1250 bus_space_tag_t t = fdc->sc_bustag; 1251 bus_space_handle_t h = fdc->sc_handle; 1252 int i; 1253 1254 for (i = 100000; i-- > 0;) { 1255 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_msr); 1256 if ((v & (NE7_DIO|NE7_RQM)) == NE7_RQM) { 1257 /* The chip is ready */ 1258 bus_space_write_1(t, h, fdc->sc_reg_fifo, x); 1259 return 0; 1260 } 1261 delay(1); 1262 } 1263 return -1; 1264 } 1265 1266 int 1267 fdc_diskchange(struct fdc_softc *fdc) 1268 { 1269 1270 #ifdef SUN4 1271 if (CPU_ISSUN4M && (fdc->sc_flags & FDC_82077) != 0) { 1272 #endif 1273 bus_space_tag_t t = fdc->sc_bustag; 1274 bus_space_handle_t h = fdc->sc_handle; 1275 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_dir); 1276 return (v & FDI_DCHG) != 0; 1277 #ifdef SUN4 1278 } else if (CPU_ISSUN4C) { 1279 return (*AUXIO4C_REG & AUXIO4C_FDC) != 0; 1280 } 1281 return 0; 1282 #endif 1283 } 1284 1285 int 1286 fdopen(dev_t dev, int flags, int fmt, struct lwp *l) 1287 { 1288 int unit, pmask; 1289 struct fd_softc *fd; 1290 struct fd_type *type; 1291 1292 unit = FDUNIT(dev); 1293 if (unit >= fd_cd.cd_ndevs) 1294 return ENXIO; 1295 fd = fd_cd.cd_devs[unit]; 1296 if (fd == NULL) 1297 return ENXIO; 1298 type = fd_dev_to_type(fd, dev); 1299 if (type == NULL) 1300 return ENXIO; 1301 1302 if ((fd->sc_flags & FD_OPEN) != 0 && 1303 fd->sc_type != type) 1304 return EBUSY; 1305 1306 fd->sc_type = type; 1307 fd->sc_cylin = -1; 1308 fd->sc_flags |= FD_OPEN; 1309 1310 /* 1311 * Only update the disklabel if we're not open anywhere else. 1312 */ 1313 if (fd->sc_dk.dk_openmask == 0) 1314 fdgetdisklabel(dev); 1315 1316 pmask = (1 << DISKPART(dev)); 1317 1318 switch (fmt) { 1319 case S_IFCHR: 1320 fd->sc_dk.dk_copenmask |= pmask; 1321 break; 1322 1323 case S_IFBLK: 1324 fd->sc_dk.dk_bopenmask |= pmask; 1325 break; 1326 } 1327 fd->sc_dk.dk_openmask = 1328 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1329 1330 return 0; 1331 } 1332 1333 int 1334 fdclose(dev_t dev, int flags, int fmt, struct lwp *l) 1335 { 1336 struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; 1337 int pmask = (1 << DISKPART(dev)); 1338 1339 fd->sc_flags &= ~FD_OPEN; 1340 fd->sc_opts &= ~(FDOPT_NORETRY|FDOPT_SILENT); 1341 1342 switch (fmt) { 1343 case S_IFCHR: 1344 fd->sc_dk.dk_copenmask &= ~pmask; 1345 break; 1346 1347 case S_IFBLK: 1348 fd->sc_dk.dk_bopenmask &= ~pmask; 1349 break; 1350 } 1351 fd->sc_dk.dk_openmask = 1352 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1353 1354 return 0; 1355 } 1356 1357 int 1358 fdread(dev_t dev, struct uio *uio, int flag) 1359 { 1360 1361 return physio(fdstrategy, NULL, dev, B_READ, minphys, uio); 1362 } 1363 1364 int 1365 fdwrite(dev_t dev, struct uio *uio, int flag) 1366 { 1367 1368 return physio(fdstrategy, NULL, dev, B_WRITE, minphys, uio); 1369 } 1370 1371 void 1372 fdcstart(struct fdc_softc *fdc) 1373 { 1374 1375 #ifdef DIAGNOSTIC 1376 /* only got here if controller's drive queue was inactive; should 1377 be in idle state */ 1378 if (fdc->sc_state != DEVIDLE) { 1379 printf("fdcstart: not idle\n"); 1380 return; 1381 } 1382 #endif 1383 (void)fdcstate(fdc); 1384 } 1385 1386 void 1387 fdcstatus(struct fdc_softc *fdc, const char *s) 1388 { 1389 struct fd_softc *fd = fdc->sc_drives.tqh_first; 1390 int n; 1391 char bits[64]; 1392 1393 /* Just print last status */ 1394 n = fdc->sc_nstat; 1395 1396 #if 0 1397 /* 1398 * A 82072 seems to return <invalid command> on 1399 * gratuitous Sense Interrupt commands. 1400 */ 1401 if (n == 0 && (fdc->sc_flags & FDC_82077) != 0) { 1402 fdc_wrfifo(fdc, NE7CMD_SENSEI); 1403 (void)fdcresult(fdc); 1404 n = 2; 1405 } 1406 #endif 1407 1408 printf("%s: %s: state %d", 1409 fd ? fd->sc_dv.dv_xname : "fdc", s, fdc->sc_state); 1410 1411 switch (n) { 1412 case 0: 1413 printf("\n"); 1414 break; 1415 case 2: 1416 printf(" (st0 %s cyl %d)\n", 1417 bitmask_snprintf(fdc->sc_status[0], NE7_ST0BITS, 1418 bits, sizeof(bits)), fdc->sc_status[1]); 1419 break; 1420 case 7: 1421 printf(" (st0 %s", bitmask_snprintf(fdc->sc_status[0], 1422 NE7_ST0BITS, bits, sizeof(bits))); 1423 printf(" st1 %s", bitmask_snprintf(fdc->sc_status[1], 1424 NE7_ST1BITS, bits, sizeof(bits))); 1425 printf(" st2 %s", bitmask_snprintf(fdc->sc_status[2], 1426 NE7_ST2BITS, bits, sizeof(bits))); 1427 printf(" cyl %d head %d sec %d)\n", 1428 fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); 1429 break; 1430 #ifdef DIAGNOSTIC 1431 default: 1432 printf(" fdcstatus: weird size: %d\n", n); 1433 break; 1434 #endif 1435 } 1436 } 1437 1438 void 1439 fdctimeout(void *arg) 1440 { 1441 struct fdc_softc *fdc = arg; 1442 struct fd_softc *fd; 1443 int s; 1444 1445 s = splbio(); 1446 fd = fdc->sc_drives.tqh_first; 1447 if (fd == NULL) { 1448 printf("%s: timeout but no I/O pending: state %d, istatus=%d\n", 1449 fdc->sc_dev.dv_xname, 1450 fdc->sc_state, fdc->sc_istatus); 1451 fdc->sc_state = DEVIDLE; 1452 goto out; 1453 } 1454 1455 if (BUFQ_PEEK(fd->sc_q) != NULL) 1456 fdc->sc_state++; 1457 else 1458 fdc->sc_state = DEVIDLE; 1459 1460 (void)fdcstate(fdc); 1461 out: 1462 splx(s); 1463 1464 } 1465 1466 void 1467 fdcpseudointr(void *arg) 1468 { 1469 struct fdc_softc *fdc = arg; 1470 int s; 1471 1472 /* Just ensure it has the right spl. */ 1473 s = splbio(); 1474 (void)fdcstate(fdc); 1475 splx(s); 1476 } 1477 1478 1479 /* 1480 * hardware interrupt entry point: used only if no `fast trap' * (in-window) 1481 * handler is available. Unfortunately, we have no reliable way to 1482 * determine that the interrupt really came from the floppy controller; 1483 * just hope that the other devices that share this interrupt level 1484 * can do better.. 1485 */ 1486 int 1487 fdc_c_hwintr(void *arg) 1488 { 1489 struct fdc_softc *fdc = arg; 1490 bus_space_tag_t t = fdc->sc_bustag; 1491 bus_space_handle_t h = fdc->sc_handle; 1492 1493 switch (fdc->sc_itask) { 1494 case FDC_ITASK_NONE: 1495 return 0; 1496 case FDC_ITASK_SENSEI: 1497 if (fdc_wrfifo(fdc, NE7CMD_SENSEI) != 0 || fdcresult(fdc) == -1) 1498 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1499 else 1500 fdc->sc_istatus = FDC_ISTATUS_DONE; 1501 softintr_schedule(fdc->sc_sicookie); 1502 return 1; 1503 case FDC_ITASK_RESULT: 1504 if (fdcresult(fdc) == -1) 1505 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1506 else 1507 fdc->sc_istatus = FDC_ISTATUS_DONE; 1508 softintr_schedule(fdc->sc_sicookie); 1509 return 1; 1510 case FDC_ITASK_DMA: 1511 /* Proceed with pseudo-DMA below */ 1512 break; 1513 default: 1514 printf("fdc: stray hard interrupt: itask=%d\n", fdc->sc_itask); 1515 fdc->sc_istatus = FDC_ISTATUS_SPURIOUS; 1516 softintr_schedule(fdc->sc_sicookie); 1517 return 1; 1518 } 1519 1520 /* 1521 * Pseudo DMA in progress 1522 */ 1523 for (;;) { 1524 uint8_t msr; 1525 1526 msr = bus_space_read_1(t, h, fdc->sc_reg_msr); 1527 1528 if ((msr & NE7_RQM) == 0) 1529 /* That's all this round. */ 1530 break; 1531 1532 if ((msr & NE7_NDM) == 0) { 1533 /* Execution phase finished, get result. */ 1534 fdcresult(fdc); 1535 fdc->sc_istatus = FDC_ISTATUS_DONE; 1536 softintr_schedule(fdc->sc_sicookie); 1537 break; 1538 } 1539 1540 if (fdc->sc_tc == 0) 1541 /* For some reason the controller wants to transfer 1542 more data then what we want to transfer. */ 1543 panic("fdc: overrun"); 1544 1545 /* Another byte can be transferred */ 1546 if ((msr & NE7_DIO) != 0) 1547 *fdc->sc_data = 1548 bus_space_read_1(t, h, fdc->sc_reg_fifo); 1549 else 1550 bus_space_write_1(t, h, fdc->sc_reg_fifo, 1551 *fdc->sc_data); 1552 1553 fdc->sc_data++; 1554 if (--fdc->sc_tc == 0) { 1555 FTC_FLIP; 1556 break; 1557 } 1558 } 1559 return 1; 1560 } 1561 1562 void 1563 fdcswintr(void *arg) 1564 { 1565 struct fdc_softc *fdc = arg; 1566 1567 if (fdc->sc_istatus == FDC_ISTATUS_NONE) 1568 /* This (software) interrupt is not for us */ 1569 return; 1570 1571 switch (fdc->sc_istatus) { 1572 case FDC_ISTATUS_ERROR: 1573 printf("fdc: ierror status: state %d\n", fdc->sc_state); 1574 break; 1575 case FDC_ISTATUS_SPURIOUS: 1576 printf("fdc: spurious interrupt: state %d\n", fdc->sc_state); 1577 break; 1578 } 1579 1580 fdcstate(fdc); 1581 return; 1582 } 1583 1584 int 1585 fdcstate(struct fdc_softc *fdc) 1586 { 1587 1588 #define st0 fdc->sc_status[0] 1589 #define st1 fdc->sc_status[1] 1590 #define cyl fdc->sc_status[1] 1591 #define FDC_WRFIFO(fdc, c) do { \ 1592 if (fdc_wrfifo(fdc, (c))) { \ 1593 goto xxx; \ 1594 } \ 1595 } while(0) 1596 1597 struct fd_softc *fd; 1598 struct buf *bp; 1599 int read, head, sec, nblks; 1600 struct fd_type *type; 1601 struct ne7_fd_formb *finfo = NULL; 1602 1603 if (fdc->sc_istatus == FDC_ISTATUS_ERROR) { 1604 /* Prevent loop if the reset sequence produces errors */ 1605 if (fdc->sc_state != RESETCOMPLETE && 1606 fdc->sc_state != RECALWAIT && 1607 fdc->sc_state != RECALCOMPLETE) 1608 fdc->sc_state = DORESET; 1609 } 1610 1611 /* Clear I task/status field */ 1612 fdc->sc_istatus = FDC_ISTATUS_NONE; 1613 fdc->sc_itask = FDC_ITASK_NONE; 1614 1615 loop: 1616 /* Is there a drive for the controller to do a transfer with? */ 1617 fd = fdc->sc_drives.tqh_first; 1618 if (fd == NULL) { 1619 fdc->sc_state = DEVIDLE; 1620 return 0; 1621 } 1622 1623 /* Is there a transfer to this drive? If not, deactivate drive. */ 1624 bp = BUFQ_PEEK(fd->sc_q); 1625 if (bp == NULL) { 1626 fd->sc_ops = 0; 1627 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1628 fd->sc_active = 0; 1629 goto loop; 1630 } 1631 1632 if (bp->b_flags & B_FORMAT) 1633 finfo = (struct ne7_fd_formb *)bp->b_data; 1634 1635 switch (fdc->sc_state) { 1636 case DEVIDLE: 1637 fdc->sc_errors = 0; 1638 fd->sc_skip = 0; 1639 fd->sc_bcount = bp->b_bcount; 1640 fd->sc_blkno = (bp->b_blkno * DEV_BSIZE) / FD_BSIZE(fd); 1641 callout_stop(&fd->sc_motoroff_ch); 1642 if ((fd->sc_flags & FD_MOTOR_WAIT) != 0) { 1643 fdc->sc_state = MOTORWAIT; 1644 return 1; 1645 } 1646 if ((fd->sc_flags & FD_MOTOR) == 0) { 1647 /* Turn on the motor, being careful about pairing. */ 1648 struct fd_softc *ofd = fdc->sc_fd[fd->sc_drive ^ 1]; 1649 if (ofd && ofd->sc_flags & FD_MOTOR) { 1650 callout_stop(&ofd->sc_motoroff_ch); 1651 ofd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1652 } 1653 fd->sc_flags |= FD_MOTOR | FD_MOTOR_WAIT; 1654 fd_set_motor(fdc); 1655 fdc->sc_state = MOTORWAIT; 1656 if ((fdc->sc_flags & FDC_NEEDMOTORWAIT) != 0) { /*XXX*/ 1657 /* Allow .25s for motor to stabilize. */ 1658 callout_reset(&fd->sc_motoron_ch, hz / 4, 1659 fd_motor_on, fd); 1660 } else { 1661 fd->sc_flags &= ~FD_MOTOR_WAIT; 1662 goto loop; 1663 } 1664 return 1; 1665 } 1666 /* Make sure the right drive is selected. */ 1667 fd_set_motor(fdc); 1668 1669 if (fdc_diskchange(fdc)) 1670 goto dodskchg; 1671 1672 /*FALLTHROUGH*/ 1673 case DOSEEK: 1674 doseek: 1675 if ((fdc->sc_flags & FDC_EIS) && 1676 (bp->b_flags & B_FORMAT) == 0) { 1677 fd->sc_cylin = bp->b_cylinder; 1678 /* We use implied seek */ 1679 goto doio; 1680 } 1681 1682 if (fd->sc_cylin == bp->b_cylinder) 1683 goto doio; 1684 1685 fd->sc_cylin = -1; 1686 fdc->sc_state = SEEKWAIT; 1687 fdc->sc_nstat = 0; 1688 1689 iostat_seek(fd->sc_dk.dk_stats); 1690 1691 disk_busy(&fd->sc_dk); 1692 callout_reset(&fdc->sc_timo_ch, 4 * hz, fdctimeout, fdc); 1693 1694 /* specify command */ 1695 FDC_WRFIFO(fdc, NE7CMD_SPECIFY); 1696 FDC_WRFIFO(fdc, fd->sc_type->steprate); 1697 /* XXX head load time == 6ms */ 1698 FDC_WRFIFO(fdc, 6 | NE7_SPECIFY_NODMA); 1699 1700 fdc->sc_itask = FDC_ITASK_SENSEI; 1701 /* seek function */ 1702 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1703 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1704 FDC_WRFIFO(fdc, bp->b_cylinder * fd->sc_type->step); 1705 return 1; 1706 1707 case DODSKCHG: 1708 dodskchg: 1709 /* 1710 * Disk change: force a seek operation by going to cyl 1 1711 * followed by a recalibrate. 1712 */ 1713 disk_busy(&fd->sc_dk); 1714 callout_reset(&fdc->sc_timo_ch, 4 * hz, fdctimeout, fdc); 1715 fd->sc_cylin = -1; 1716 fdc->sc_nstat = 0; 1717 fdc->sc_state = DSKCHGWAIT; 1718 1719 fdc->sc_itask = FDC_ITASK_SENSEI; 1720 /* seek function */ 1721 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1722 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1723 FDC_WRFIFO(fdc, 1 * fd->sc_type->step); 1724 return 1; 1725 1726 case DSKCHGWAIT: 1727 callout_stop(&fdc->sc_timo_ch); 1728 disk_unbusy(&fd->sc_dk, 0, 0); 1729 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1730 cyl != 1 * fd->sc_type->step) { 1731 fdcstatus(fdc, "dskchg seek failed"); 1732 fdc->sc_state = DORESET; 1733 } else 1734 fdc->sc_state = DORECAL; 1735 1736 if (fdc_diskchange(fdc)) { 1737 printf("%s: cannot clear disk change status\n", 1738 fdc->sc_dev.dv_xname); 1739 fdc->sc_state = DORESET; 1740 } 1741 goto loop; 1742 1743 case DOIO: 1744 doio: 1745 if (finfo != NULL) 1746 fd->sc_skip = (char *)&(finfo->fd_formb_cylno(0)) - 1747 (char *)finfo; 1748 type = fd->sc_type; 1749 sec = fd->sc_blkno % type->seccyl; 1750 nblks = type->seccyl - sec; 1751 nblks = min(nblks, fd->sc_bcount / FD_BSIZE(fd)); 1752 nblks = min(nblks, FDC_MAXIOSIZE / FD_BSIZE(fd)); 1753 fd->sc_nblks = nblks; 1754 fd->sc_nbytes = finfo ? bp->b_bcount : nblks * FD_BSIZE(fd); 1755 head = sec / type->sectrac; 1756 sec -= head * type->sectrac; 1757 #ifdef DIAGNOSTIC 1758 {int block; 1759 block = (fd->sc_cylin * type->heads + head) * type->sectrac + 1760 sec; 1761 if (block != fd->sc_blkno) { 1762 printf("fdcintr: block %d != blkno %d\n", block, 1763 (int)fd->sc_blkno); 1764 #ifdef DDB 1765 Debugger(); 1766 #endif 1767 }} 1768 #endif 1769 read = bp->b_flags & B_READ; 1770 1771 /* Setup for pseudo DMA */ 1772 fdc->sc_data = (char *)bp->b_data + fd->sc_skip; 1773 fdc->sc_tc = fd->sc_nbytes; 1774 1775 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1776 fdc->sc_reg_drs, type->rate); 1777 #ifdef FD_DEBUG 1778 if (fdc_debug > 1) 1779 printf("fdcstate: doio: %s drive %d " 1780 "track %d head %d sec %d nblks %d\n", 1781 finfo ? "format" : 1782 (read ? "read" : "write"), 1783 fd->sc_drive, fd->sc_cylin, head, sec, nblks); 1784 #endif 1785 fdc->sc_state = IOCOMPLETE; 1786 fdc->sc_itask = FDC_ITASK_DMA; 1787 fdc->sc_nstat = 0; 1788 1789 disk_busy(&fd->sc_dk); 1790 1791 /* allow 3 seconds for operation */ 1792 callout_reset(&fdc->sc_timo_ch, 3 * hz, fdctimeout, fdc); 1793 1794 if (finfo != NULL) { 1795 /* formatting */ 1796 FDC_WRFIFO(fdc, NE7CMD_FORMAT); 1797 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1798 FDC_WRFIFO(fdc, finfo->fd_formb_secshift); 1799 FDC_WRFIFO(fdc, finfo->fd_formb_nsecs); 1800 FDC_WRFIFO(fdc, finfo->fd_formb_gaplen); 1801 FDC_WRFIFO(fdc, finfo->fd_formb_fillbyte); 1802 } else { 1803 if (read) 1804 FDC_WRFIFO(fdc, NE7CMD_READ); 1805 else 1806 FDC_WRFIFO(fdc, NE7CMD_WRITE); 1807 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1808 FDC_WRFIFO(fdc, fd->sc_cylin); /*track*/ 1809 FDC_WRFIFO(fdc, head); 1810 FDC_WRFIFO(fdc, sec + 1); /*sector+1*/ 1811 FDC_WRFIFO(fdc, type->secsize); /*sector size*/ 1812 FDC_WRFIFO(fdc, type->sectrac); /*secs/track*/ 1813 FDC_WRFIFO(fdc, type->gap1); /*gap1 size*/ 1814 FDC_WRFIFO(fdc, type->datalen); /*data length*/ 1815 } 1816 1817 return 1; /* will return later */ 1818 1819 case SEEKWAIT: 1820 callout_stop(&fdc->sc_timo_ch); 1821 fdc->sc_state = SEEKCOMPLETE; 1822 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1823 /* allow 1/50 second for heads to settle */ 1824 callout_reset(&fdc->sc_intr_ch, hz / 50, 1825 fdcpseudointr, fdc); 1826 return 1; /* will return later */ 1827 } 1828 /*FALLTHROUGH*/ 1829 case SEEKCOMPLETE: 1830 /* no data on seek */ 1831 disk_unbusy(&fd->sc_dk, 0, 0); 1832 1833 /* Make sure seek really happened. */ 1834 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1835 cyl != bp->b_cylinder * fd->sc_type->step) { 1836 #ifdef FD_DEBUG 1837 if (fdc_debug) 1838 fdcstatus(fdc, "seek failed"); 1839 #endif 1840 fdcretry(fdc); 1841 goto loop; 1842 } 1843 fd->sc_cylin = bp->b_cylinder; 1844 goto doio; 1845 1846 case IOTIMEDOUT: 1847 /* 1848 * Try to abort the I/O operation without resetting 1849 * the chip first. Poke TC and arrange to pick up 1850 * the timed out I/O command's status. 1851 */ 1852 fdc->sc_itask = FDC_ITASK_RESULT; 1853 fdc->sc_state = IOCLEANUPWAIT; 1854 fdc->sc_nstat = 0; 1855 /* 1/10 second should be enough */ 1856 callout_reset(&fdc->sc_timo_ch, hz / 10, fdctimeout, fdc); 1857 FTC_FLIP; 1858 return 1; 1859 1860 case IOCLEANUPTIMEDOUT: 1861 case SEEKTIMEDOUT: 1862 case RECALTIMEDOUT: 1863 case RESETTIMEDOUT: 1864 case DSKCHGTIMEDOUT: 1865 fdcstatus(fdc, "timeout"); 1866 1867 /* All other timeouts always roll through to a chip reset */ 1868 fdcretry(fdc); 1869 1870 /* Force reset, no matter what fdcretry() says */ 1871 fdc->sc_state = DORESET; 1872 goto loop; 1873 1874 case IOCLEANUPWAIT: /* IO FAILED, cleanup succeeded */ 1875 callout_stop(&fdc->sc_timo_ch); 1876 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1877 (bp->b_flags & B_READ)); 1878 fdcretry(fdc); 1879 goto loop; 1880 1881 case IOCOMPLETE: /* IO DONE, post-analyze */ 1882 callout_stop(&fdc->sc_timo_ch); 1883 1884 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1885 (bp->b_flags & B_READ)); 1886 1887 if (fdc->sc_nstat != 7 || st1 != 0 || 1888 ((st0 & 0xf8) != 0 && 1889 ((st0 & 0xf8) != 0x20 || (fdc->sc_cfg & CFG_EIS) == 0))) { 1890 #ifdef FD_DEBUG 1891 if (fdc_debug) { 1892 fdcstatus(fdc, bp->b_flags & B_READ ? 1893 "read failed" : "write failed"); 1894 printf("blkno %lld nblks %d nstat %d tc %d\n", 1895 (long long)fd->sc_blkno, fd->sc_nblks, 1896 fdc->sc_nstat, fdc->sc_tc); 1897 } 1898 #endif 1899 if (fdc->sc_nstat == 7 && 1900 (st1 & ST1_OVERRUN) == ST1_OVERRUN) { 1901 1902 /* 1903 * Silently retry overruns if no other 1904 * error bit is set. Adjust threshold. 1905 */ 1906 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1907 if (thr < 15) { 1908 thr++; 1909 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1910 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1911 #ifdef FD_DEBUG 1912 if (fdc_debug) 1913 printf("fdc: %d -> threshold\n", 1914 thr); 1915 #endif 1916 fdconf(fdc); 1917 fdc->sc_overruns = 0; 1918 } 1919 if (++fdc->sc_overruns < 3) { 1920 fdc->sc_state = DOIO; 1921 goto loop; 1922 } 1923 } 1924 fdcretry(fdc); 1925 goto loop; 1926 } 1927 if (fdc->sc_errors) { 1928 diskerr(bp, "fd", "soft error", LOG_PRINTF, 1929 fd->sc_skip / FD_BSIZE(fd), 1930 (struct disklabel *)NULL); 1931 printf("\n"); 1932 fdc->sc_errors = 0; 1933 } else { 1934 if (--fdc->sc_overruns < -20) { 1935 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1936 if (thr > 0) { 1937 thr--; 1938 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1939 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1940 #ifdef FD_DEBUG 1941 if (fdc_debug) 1942 printf("fdc: %d -> threshold\n", 1943 thr); 1944 #endif 1945 fdconf(fdc); 1946 } 1947 fdc->sc_overruns = 0; 1948 } 1949 } 1950 fd->sc_blkno += fd->sc_nblks; 1951 fd->sc_skip += fd->sc_nbytes; 1952 fd->sc_bcount -= fd->sc_nbytes; 1953 if (finfo == NULL && fd->sc_bcount > 0) { 1954 bp->b_cylinder = fd->sc_blkno / fd->sc_type->seccyl; 1955 goto doseek; 1956 } 1957 fdfinish(fd, bp); 1958 goto loop; 1959 1960 case DORESET: 1961 /* try a reset, keep motor on */ 1962 fd_set_motor(fdc); 1963 delay(100); 1964 fdc->sc_nstat = 0; 1965 fdc->sc_itask = FDC_ITASK_SENSEI; 1966 fdc->sc_state = RESETCOMPLETE; 1967 callout_reset(&fdc->sc_timo_ch, hz / 2, fdctimeout, fdc); 1968 fdc_reset(fdc); 1969 return 1; /* will return later */ 1970 1971 case RESETCOMPLETE: 1972 callout_stop(&fdc->sc_timo_ch); 1973 fdconf(fdc); 1974 1975 /* FALLTHROUGH */ 1976 case DORECAL: 1977 fdc->sc_state = RECALWAIT; 1978 fdc->sc_itask = FDC_ITASK_SENSEI; 1979 fdc->sc_nstat = 0; 1980 callout_reset(&fdc->sc_timo_ch, 5 * hz, fdctimeout, fdc); 1981 /* recalibrate function */ 1982 FDC_WRFIFO(fdc, NE7CMD_RECAL); 1983 FDC_WRFIFO(fdc, fd->sc_drive); 1984 return 1; /* will return later */ 1985 1986 case RECALWAIT: 1987 callout_stop(&fdc->sc_timo_ch); 1988 fdc->sc_state = RECALCOMPLETE; 1989 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1990 /* allow 1/30 second for heads to settle */ 1991 callout_reset(&fdc->sc_intr_ch, hz / 30, 1992 fdcpseudointr, fdc); 1993 return 1; /* will return later */ 1994 } 1995 1996 case RECALCOMPLETE: 1997 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || cyl != 0) { 1998 #ifdef FD_DEBUG 1999 if (fdc_debug) 2000 fdcstatus(fdc, "recalibrate failed"); 2001 #endif 2002 fdcretry(fdc); 2003 goto loop; 2004 } 2005 fd->sc_cylin = 0; 2006 goto doseek; 2007 2008 case MOTORWAIT: 2009 if (fd->sc_flags & FD_MOTOR_WAIT) 2010 return 1; /* time's not up yet */ 2011 goto doseek; 2012 2013 default: 2014 fdcstatus(fdc, "stray interrupt"); 2015 return 1; 2016 } 2017 #ifdef DIAGNOSTIC 2018 panic("fdcintr: impossible"); 2019 #endif 2020 2021 xxx: 2022 /* 2023 * We get here if the chip locks up in FDC_WRFIFO() 2024 * Cancel any operation and schedule a reset 2025 */ 2026 callout_stop(&fdc->sc_timo_ch); 2027 fdcretry(fdc); 2028 fdc->sc_state = DORESET; 2029 goto loop; 2030 2031 #undef st0 2032 #undef st1 2033 #undef cyl 2034 } 2035 2036 void 2037 fdcretry(struct fdc_softc *fdc) 2038 { 2039 struct fd_softc *fd; 2040 struct buf *bp; 2041 int error = EIO; 2042 2043 fd = fdc->sc_drives.tqh_first; 2044 bp = BUFQ_PEEK(fd->sc_q); 2045 2046 fdc->sc_overruns = 0; 2047 if (fd->sc_opts & FDOPT_NORETRY) 2048 goto fail; 2049 2050 switch (fdc->sc_errors) { 2051 case 0: 2052 if (fdc->sc_nstat == 7 && 2053 (fdc->sc_status[0] & 0xd8) == 0x40 && 2054 (fdc->sc_status[1] & 0x2) == 0x2) { 2055 printf("%s: read-only medium\n", fd->sc_dv.dv_xname); 2056 error = EROFS; 2057 goto failsilent; 2058 } 2059 /* try again */ 2060 fdc->sc_state = 2061 (fdc->sc_flags & FDC_EIS) ? DOIO : DOSEEK; 2062 break; 2063 2064 case 1: case 2: case 3: 2065 /* didn't work; try recalibrating */ 2066 fdc->sc_state = DORECAL; 2067 break; 2068 2069 case 4: 2070 if (fdc->sc_nstat == 7 && 2071 fdc->sc_status[0] == 0 && 2072 fdc->sc_status[1] == 0 && 2073 fdc->sc_status[2] == 0) { 2074 /* 2075 * We've retried a few times and we've got 2076 * valid status and all three status bytes 2077 * are zero. Assume this condition is the 2078 * result of no disk loaded into the drive. 2079 */ 2080 printf("%s: no medium?\n", fd->sc_dv.dv_xname); 2081 error = ENODEV; 2082 goto failsilent; 2083 } 2084 2085 /* still no go; reset the bastard */ 2086 fdc->sc_state = DORESET; 2087 break; 2088 2089 default: 2090 fail: 2091 if ((fd->sc_opts & FDOPT_SILENT) == 0) { 2092 diskerr(bp, "fd", "hard error", LOG_PRINTF, 2093 fd->sc_skip / FD_BSIZE(fd), 2094 (struct disklabel *)NULL); 2095 printf("\n"); 2096 fdcstatus(fdc, "controller status"); 2097 } 2098 2099 failsilent: 2100 bp->b_flags |= B_ERROR; 2101 bp->b_error = error; 2102 fdfinish(fd, bp); 2103 } 2104 fdc->sc_errors++; 2105 } 2106 2107 int 2108 fdioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l) 2109 { 2110 struct fd_softc *fd; 2111 struct fdc_softc *fdc; 2112 struct fdformat_parms *form_parms; 2113 struct fdformat_cmd *form_cmd; 2114 struct ne7_fd_formb *fd_formb; 2115 int il[FD_MAX_NSEC + 1]; 2116 int unit; 2117 int i, j; 2118 int error; 2119 2120 unit = FDUNIT(dev); 2121 if (unit >= fd_cd.cd_ndevs) 2122 return ENXIO; 2123 2124 fd = fd_cd.cd_devs[FDUNIT(dev)]; 2125 fdc = (struct fdc_softc *)device_parent(&fd->sc_dv); 2126 2127 switch (cmd) { 2128 case DIOCGDINFO: 2129 *(struct disklabel *)addr = *(fd->sc_dk.dk_label); 2130 return 0; 2131 2132 case DIOCWLABEL: 2133 if ((flag & FWRITE) == 0) 2134 return EBADF; 2135 /* XXX do something */ 2136 return 0; 2137 2138 case DIOCWDINFO: 2139 if ((flag & FWRITE) == 0) 2140 return EBADF; 2141 2142 error = setdisklabel(fd->sc_dk.dk_label, 2143 (struct disklabel *)addr, 0, 2144 fd->sc_dk.dk_cpulabel); 2145 if (error) 2146 return error; 2147 2148 error = writedisklabel(dev, fdstrategy, 2149 fd->sc_dk.dk_label, 2150 fd->sc_dk.dk_cpulabel); 2151 return error; 2152 2153 case DIOCLOCK: 2154 /* 2155 * Nothing to do here, really. 2156 */ 2157 return 0; 2158 2159 case DIOCEJECT: 2160 if (*(int *)addr == 0) { 2161 int part = DISKPART(dev); 2162 /* 2163 * Don't force eject: check that we are the only 2164 * partition open. If so, unlock it. 2165 */ 2166 if ((fd->sc_dk.dk_openmask & ~(1 << part)) != 0 || 2167 fd->sc_dk.dk_bopenmask + fd->sc_dk.dk_copenmask != 2168 fd->sc_dk.dk_openmask) { 2169 return EBUSY; 2170 } 2171 } 2172 /* FALLTHROUGH */ 2173 case ODIOCEJECT: 2174 if (fdc->sc_flags & FDC_NOEJECT) 2175 return EINVAL; 2176 fd_do_eject(fd); 2177 return 0; 2178 2179 case FDIOCGETFORMAT: 2180 form_parms = (struct fdformat_parms *)addr; 2181 form_parms->fdformat_version = FDFORMAT_VERSION; 2182 form_parms->nbps = 128 * (1 << fd->sc_type->secsize); 2183 form_parms->ncyl = fd->sc_type->cylinders; 2184 form_parms->nspt = fd->sc_type->sectrac; 2185 form_parms->ntrk = fd->sc_type->heads; 2186 form_parms->stepspercyl = fd->sc_type->step; 2187 form_parms->gaplen = fd->sc_type->gap2; 2188 form_parms->fillbyte = fd->sc_type->fillbyte; 2189 form_parms->interleave = fd->sc_type->interleave; 2190 switch (fd->sc_type->rate) { 2191 case FDC_500KBPS: 2192 form_parms->xfer_rate = 500 * 1024; 2193 break; 2194 case FDC_300KBPS: 2195 form_parms->xfer_rate = 300 * 1024; 2196 break; 2197 case FDC_250KBPS: 2198 form_parms->xfer_rate = 250 * 1024; 2199 break; 2200 default: 2201 return EINVAL; 2202 } 2203 return 0; 2204 2205 case FDIOCSETFORMAT: 2206 if ((flag & FWRITE) == 0) 2207 return EBADF; /* must be opened for writing */ 2208 2209 form_parms = (struct fdformat_parms *)addr; 2210 if (form_parms->fdformat_version != FDFORMAT_VERSION) 2211 return EINVAL;/* wrong version of formatting prog */ 2212 2213 i = form_parms->nbps >> 7; 2214 if ((form_parms->nbps & 0x7f) || ffs(i) == 0 || 2215 i & ~(1 << (ffs(i)-1))) 2216 /* not a power-of-two multiple of 128 */ 2217 return EINVAL; 2218 2219 switch (form_parms->xfer_rate) { 2220 case 500 * 1024: 2221 fd->sc_type->rate = FDC_500KBPS; 2222 break; 2223 case 300 * 1024: 2224 fd->sc_type->rate = FDC_300KBPS; 2225 break; 2226 case 250 * 1024: 2227 fd->sc_type->rate = FDC_250KBPS; 2228 break; 2229 default: 2230 return EINVAL; 2231 } 2232 2233 if (form_parms->nspt > FD_MAX_NSEC || 2234 form_parms->fillbyte > 0xff || 2235 form_parms->interleave > 0xff) 2236 return EINVAL; 2237 fd->sc_type->sectrac = form_parms->nspt; 2238 if (form_parms->ntrk != 2 && form_parms->ntrk != 1) 2239 return EINVAL; 2240 fd->sc_type->heads = form_parms->ntrk; 2241 fd->sc_type->seccyl = form_parms->nspt * form_parms->ntrk; 2242 fd->sc_type->secsize = ffs(i)-1; 2243 fd->sc_type->gap2 = form_parms->gaplen; 2244 fd->sc_type->cylinders = form_parms->ncyl; 2245 fd->sc_type->size = fd->sc_type->seccyl * form_parms->ncyl * 2246 form_parms->nbps / DEV_BSIZE; 2247 fd->sc_type->step = form_parms->stepspercyl; 2248 fd->sc_type->fillbyte = form_parms->fillbyte; 2249 fd->sc_type->interleave = form_parms->interleave; 2250 return 0; 2251 2252 case FDIOCFORMAT_TRACK: 2253 if((flag & FWRITE) == 0) 2254 /* must be opened for writing */ 2255 return EBADF; 2256 form_cmd = (struct fdformat_cmd *)addr; 2257 if (form_cmd->formatcmd_version != FDFORMAT_VERSION) 2258 /* wrong version of formatting prog */ 2259 return EINVAL; 2260 2261 if (form_cmd->head >= fd->sc_type->heads || 2262 form_cmd->cylinder >= fd->sc_type->cylinders) { 2263 return EINVAL; 2264 } 2265 2266 fd_formb = malloc(sizeof(struct ne7_fd_formb), 2267 M_TEMP, M_NOWAIT); 2268 if (fd_formb == 0) 2269 return ENOMEM; 2270 2271 fd_formb->head = form_cmd->head; 2272 fd_formb->cyl = form_cmd->cylinder; 2273 fd_formb->transfer_rate = fd->sc_type->rate; 2274 fd_formb->fd_formb_secshift = fd->sc_type->secsize; 2275 fd_formb->fd_formb_nsecs = fd->sc_type->sectrac; 2276 fd_formb->fd_formb_gaplen = fd->sc_type->gap2; 2277 fd_formb->fd_formb_fillbyte = fd->sc_type->fillbyte; 2278 2279 bzero(il, sizeof il); 2280 for (j = 0, i = 1; i <= fd_formb->fd_formb_nsecs; i++) { 2281 while (il[(j % fd_formb->fd_formb_nsecs) + 1]) 2282 j++; 2283 il[(j % fd_formb->fd_formb_nsecs) + 1] = i; 2284 j += fd->sc_type->interleave; 2285 } 2286 for (i = 0; i < fd_formb->fd_formb_nsecs; i++) { 2287 fd_formb->fd_formb_cylno(i) = form_cmd->cylinder; 2288 fd_formb->fd_formb_headno(i) = form_cmd->head; 2289 fd_formb->fd_formb_secno(i) = il[i + 1]; 2290 fd_formb->fd_formb_secsize(i) = fd->sc_type->secsize; 2291 } 2292 2293 error = fdformat(dev, fd_formb, l->l_proc); 2294 free(fd_formb, M_TEMP); 2295 return error; 2296 2297 case FDIOCGETOPTS: /* get drive options */ 2298 *(int *)addr = fd->sc_opts; 2299 return 0; 2300 2301 case FDIOCSETOPTS: /* set drive options */ 2302 fd->sc_opts = *(int *)addr; 2303 return 0; 2304 2305 #ifdef FD_DEBUG 2306 case _IO('f', 100): 2307 fdc_wrfifo(fdc, NE7CMD_DUMPREG); 2308 fdcresult(fdc); 2309 printf("fdc: dumpreg(%d regs): <", fdc->sc_nstat); 2310 for (i = 0; i < fdc->sc_nstat; i++) 2311 printf(" 0x%x", fdc->sc_status[i]); 2312 printf(">\n"); 2313 return 0; 2314 2315 case _IOW('f', 101, int): 2316 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 2317 fdc->sc_cfg |= (*(int *)addr & CFG_THRHLD_MASK); 2318 fdconf(fdc); 2319 return 0; 2320 2321 case _IO('f', 102): 2322 fdc_wrfifo(fdc, NE7CMD_SENSEI); 2323 fdcresult(fdc); 2324 printf("fdc: sensei(%d regs): <", fdc->sc_nstat); 2325 for (i=0; i< fdc->sc_nstat; i++) 2326 printf(" 0x%x", fdc->sc_status[i]); 2327 printf(">\n"); 2328 return 0; 2329 #endif 2330 default: 2331 return ENOTTY; 2332 } 2333 2334 #ifdef DIAGNOSTIC 2335 panic("fdioctl: impossible"); 2336 #endif 2337 } 2338 2339 int 2340 fdformat(dev_t dev, struct ne7_fd_formb *finfo, struct proc *p) 2341 { 2342 int rv = 0; 2343 struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; 2344 struct fd_type *type = fd->sc_type; 2345 struct buf *bp; 2346 2347 /* set up a buffer header for fdstrategy() */ 2348 bp = getiobuf_nowait(); 2349 if (bp == NULL) 2350 return ENOBUFS; 2351 2352 bp->b_vp = NULL; 2353 bp->b_flags = B_BUSY | B_PHYS | B_FORMAT; 2354 bp->b_proc = p; 2355 bp->b_dev = dev; 2356 2357 /* 2358 * Calculate a fake blkno, so fdstrategy() would initiate a 2359 * seek to the requested cylinder. 2360 */ 2361 bp->b_blkno = ((finfo->cyl * (type->sectrac * type->heads) 2362 + finfo->head * type->sectrac) * FD_BSIZE(fd)) 2363 / DEV_BSIZE; 2364 2365 bp->b_bcount = sizeof(struct fd_idfield_data) * finfo->fd_formb_nsecs; 2366 bp->b_data = (void *)finfo; 2367 2368 #ifdef FD_DEBUG 2369 if (fdc_debug) { 2370 int i; 2371 2372 printf("fdformat: blkno 0x%llx count %d\n", 2373 (unsigned long long)bp->b_blkno, bp->b_bcount); 2374 2375 printf("\tcyl:\t%d\n", finfo->cyl); 2376 printf("\thead:\t%d\n", finfo->head); 2377 printf("\tnsecs:\t%d\n", finfo->fd_formb_nsecs); 2378 printf("\tsshft:\t%d\n", finfo->fd_formb_secshift); 2379 printf("\tgaplen:\t%d\n", finfo->fd_formb_gaplen); 2380 printf("\ttrack data:"); 2381 for (i = 0; i < finfo->fd_formb_nsecs; i++) { 2382 printf(" [c%d h%d s%d]", 2383 finfo->fd_formb_cylno(i), 2384 finfo->fd_formb_headno(i), 2385 finfo->fd_formb_secno(i) ); 2386 if (finfo->fd_formb_secsize(i) != 2) 2387 printf("<sz:%d>", finfo->fd_formb_secsize(i)); 2388 } 2389 printf("\n"); 2390 } 2391 #endif 2392 2393 /* now do the format */ 2394 fdstrategy(bp); 2395 2396 /* ...and wait for it to complete */ 2397 rv = biowait(bp); 2398 putiobuf(bp); 2399 return rv; 2400 } 2401 2402 void 2403 fdgetdisklabel(dev_t dev) 2404 { 2405 int unit = FDUNIT(dev), i; 2406 struct fd_softc *fd = fd_cd.cd_devs[unit]; 2407 struct disklabel *lp = fd->sc_dk.dk_label; 2408 struct cpu_disklabel *clp = fd->sc_dk.dk_cpulabel; 2409 2410 bzero(lp, sizeof(struct disklabel)); 2411 bzero(lp, sizeof(struct cpu_disklabel)); 2412 2413 lp->d_type = DTYPE_FLOPPY; 2414 lp->d_secsize = FD_BSIZE(fd); 2415 lp->d_secpercyl = fd->sc_type->seccyl; 2416 lp->d_nsectors = fd->sc_type->sectrac; 2417 lp->d_ncylinders = fd->sc_type->cylinders; 2418 lp->d_ntracks = fd->sc_type->heads; /* Go figure... */ 2419 lp->d_secperunit = lp->d_secpercyl * lp->d_ncylinders; 2420 lp->d_rpm = 300; /* XXX like it matters... */ 2421 2422 strncpy(lp->d_typename, "floppy disk", sizeof(lp->d_typename)); 2423 strncpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); 2424 lp->d_interleave = 1; 2425 lp->d_flags = D_REMOVABLE; 2426 2427 lp->d_partitions[RAW_PART].p_offset = 0; 2428 lp->d_partitions[RAW_PART].p_size = lp->d_secpercyl * lp->d_ncylinders; 2429 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 2430 lp->d_npartitions = RAW_PART + 1; 2431 2432 lp->d_magic = DISKMAGIC; 2433 lp->d_magic2 = DISKMAGIC; 2434 lp->d_checksum = dkcksum(lp); 2435 2436 /* 2437 * Call the generic disklabel extraction routine. If there's 2438 * not a label there, fake it. 2439 */ 2440 if (readdisklabel(dev, fdstrategy, lp, clp) != NULL) { 2441 strncpy(lp->d_packname, "default label", 2442 sizeof(lp->d_packname)); 2443 /* 2444 * Reset the partition info; it might have gotten 2445 * trashed in readdisklabel(). 2446 * 2447 * XXX Why do we have to do this? readdisklabel() 2448 * should be safe... 2449 */ 2450 for (i = 0; i < MAXPARTITIONS; ++i) { 2451 lp->d_partitions[i].p_offset = 0; 2452 if (i == RAW_PART) { 2453 lp->d_partitions[i].p_size = 2454 lp->d_secpercyl * lp->d_ncylinders; 2455 lp->d_partitions[i].p_fstype = FS_BSDFFS; 2456 } else { 2457 lp->d_partitions[i].p_size = 0; 2458 lp->d_partitions[i].p_fstype = FS_UNUSED; 2459 } 2460 } 2461 lp->d_npartitions = RAW_PART + 1; 2462 } 2463 } 2464 2465 void 2466 fd_do_eject(struct fd_softc *fd) 2467 { 2468 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 2469 2470 #ifdef SUN4 2471 if (CPU_ISSUN4C) { 2472 auxregbisc(AUXIO4C_FDS, AUXIO4C_FEJ); 2473 delay(10); 2474 auxregbisc(AUXIO4C_FEJ, AUXIO4C_FDS); 2475 return; 2476 } 2477 if (CPU_ISSUN4M && (fdc->sc_flags & FDC_82077) != 0) { 2478 #endif 2479 bus_space_tag_t t = fdc->sc_bustag; 2480 bus_space_handle_t h = fdc->sc_handle; 2481 uint8_t dor = FDO_FRST | FDO_FDMAEN | FDO_MOEN(0); 2482 2483 bus_space_write_1(t, h, fdc->sc_reg_dor, dor | FDO_EJ); 2484 delay(10); 2485 bus_space_write_1(t, h, fdc->sc_reg_dor, FDO_FRST | FDO_DS); 2486 return; 2487 #ifdef SUN4 2488 } 2489 #endif 2490 } 2491 2492 /* ARGSUSED */ 2493 void 2494 fd_mountroot_hook(struct device *dev) 2495 { 2496 int c; 2497 2498 fd_do_eject((struct fd_softc *)dev); 2499 printf("Insert filesystem floppy and press return."); 2500 for (;;) { 2501 c = cngetc(); 2502 if ((c == '\r') || (c == '\n')) { 2503 printf("\n"); 2504 break; 2505 } 2506 } 2507 } 2508 2509 #ifdef MEMORY_DISK_HOOKS 2510 2511 #define FDMICROROOTSIZE ((2*18*80) << DEV_BSHIFT) 2512 2513 int 2514 fd_read_md_image(size_t *sizep, void **addrp) 2515 { 2516 struct buf buf, *bp = &buf; 2517 dev_t dev; 2518 off_t offset; 2519 char *addr; 2520 2521 dev = makedev(54,0); /* XXX */ 2522 2523 MALLOC(addr, void *, FDMICROROOTSIZE, M_DEVBUF, M_WAITOK); 2524 *addrp = addr; 2525 2526 if (fdopen(dev, 0, S_IFCHR, NULL)) 2527 panic("fd: mountroot: fdopen"); 2528 2529 offset = 0; 2530 2531 for (;;) { 2532 bp->b_dev = dev; 2533 bp->b_error = 0; 2534 bp->b_resid = 0; 2535 bp->b_proc = NULL; 2536 bp->b_flags = B_BUSY | B_PHYS | B_RAW | B_READ; 2537 bp->b_blkno = btodb(offset); 2538 bp->b_bcount = DEV_BSIZE; 2539 bp->b_data = addr; 2540 fdstrategy(bp); 2541 while ((bp->b_flags & B_DONE) == 0) { 2542 tsleep((void *)bp, PRIBIO + 1, "physio", 0); 2543 } 2544 if (bp->b_error) 2545 panic("fd: mountroot: fdread error %d", bp->b_error); 2546 2547 if (bp->b_resid != 0) 2548 break; 2549 2550 addr += DEV_BSIZE; 2551 offset += DEV_BSIZE; 2552 if (offset + DEV_BSIZE > FDMICROROOTSIZE) 2553 break; 2554 } 2555 (void)fdclose(dev, 0, S_IFCHR, NULL); 2556 *sizep = offset; 2557 fd_do_eject(fd_cd.cd_devs[FDUNIT(dev)]); 2558 return 0; 2559 } 2560 #endif /* MEMORY_DISK_HOOKS */ 2561 2562 static void 2563 fd_set_properties(struct fd_softc *fd) 2564 { 2565 prop_dictionary_t disk_info, odisk_info, geom; 2566 struct fd_type *fdt; 2567 int secsize; 2568 2569 fdt = fd->sc_deftype; 2570 2571 disk_info = prop_dictionary_create(); 2572 2573 geom = prop_dictionary_create(); 2574 2575 prop_dictionary_set_uint64(geom, "sectors-per-unit", 2576 fdt->size); 2577 2578 switch (fdt->secsize) { 2579 case 2: 2580 secsize = 512; 2581 break; 2582 case 3: 2583 secsize = 1024; 2584 break; 2585 default: 2586 secsize = 0; 2587 } 2588 2589 prop_dictionary_set_uint32(geom, "sector-size", 2590 secsize); 2591 2592 prop_dictionary_set_uint16(geom, "sectors-per-track", 2593 fdt->sectrac); 2594 2595 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 2596 fdt->heads); 2597 2598 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 2599 fdt->cylinders); 2600 2601 prop_dictionary_set(disk_info, "geometry", geom); 2602 prop_object_release(geom); 2603 2604 prop_dictionary_set(device_properties(&fd->sc_dv), 2605 "disk-info", disk_info); 2606 2607 /* 2608 * Don't release disk_info here; we keep a reference to it. 2609 * disk_detach() will release it when we go away. 2610 */ 2611 2612 odisk_info = fd->sc_dk.dk_info; 2613 fd->sc_dk.dk_info = disk_info; 2614 if (odisk_info) 2615 prop_object_release(odisk_info); 2616 } 2617
Indexes created Tue Sep 30 07:10:03 GMT 2025