fdc.c revision 1.4
1 /* $NetBSD: fdc.c,v 1.4 2007/03/02 09:17:00 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 1.4 2007/03/02 09:17:00 jnemeth Exp $"); 112 113 #include "opt_ddb.h" 114 #include "opt_md.h" 115 116 #include <sys/param.h> 117 #include <sys/systm.h> 118 #include <sys/callout.h> 119 #include <sys/kernel.h> 120 #include <sys/file.h> 121 #include <sys/ioctl.h> 122 #include <sys/device.h> 123 #include <sys/disklabel.h> 124 #include <sys/disk.h> 125 #include <sys/fdio.h> 126 #include <sys/buf.h> 127 #include <sys/bufq.h> 128 #include <sys/malloc.h> 129 #include <sys/proc.h> 130 #include <sys/uio.h> 131 #include <sys/stat.h> 132 #include <sys/syslog.h> 133 #include <sys/queue.h> 134 #include <sys/conf.h> 135 136 #include <dev/cons.h> 137 138 #include <uvm/uvm_extern.h> 139 140 #include <machine/autoconf.h> 141 #include <machine/intr.h> 142 143 #ifdef SUN4 144 #include <sparc/sparc/auxreg.h> 145 #include <sparc/dev/fdreg.h> 146 #include <sparc/dev/fdvar.h> 147 #elif SUN4U 148 #include <dev/ebus/ebusreg.h> 149 #include <dev/ebus/ebusvar.h> 150 /* #include <sparc/sparc/auxreg.h> */ 151 #include <sparc64/dev/auxioreg.h> 152 #include <sparc64/dev/auxiovar.h> 153 #include <sparc64/dev/fdcreg.h> 154 #include <sparc64/dev/fdcvar.h> 155 #endif 156 157 #include <prop/proplib.h> 158 159 #define FDUNIT(dev) (minor(dev) / 8) 160 #define FDTYPE(dev) (minor(dev) % 8) 161 162 #ifdef SUN4U 163 #define FTC_FLIP \ 164 do { \ 165 auxio_fd_control(AUXIO_LED_FTC); \ 166 auxio_fd_control(0); \ 167 } while (0) 168 #else 169 #define FTC_FLIP 170 #endif 171 172 /* (mis)use device use flag to identify format operation */ 173 #define B_FORMAT B_DEVPRIVATE 174 175 #define FD_DEBUG 176 #ifdef FD_DEBUG 177 int fdc_debug = 0; 178 #endif 179 180 enum fdc_state { 181 DEVIDLE = 0, 182 MOTORWAIT, /* 1 */ 183 DOSEEK, /* 2 */ 184 SEEKWAIT, /* 3 */ 185 SEEKTIMEDOUT, /* 4 */ 186 SEEKCOMPLETE, /* 5 */ 187 DOIO, /* 6 */ 188 IOCOMPLETE, /* 7 */ 189 IOTIMEDOUT, /* 8 */ 190 IOCLEANUPWAIT, /* 9 */ 191 IOCLEANUPTIMEDOUT,/*10 */ 192 DORESET, /* 11 */ 193 RESETCOMPLETE, /* 12 */ 194 RESETTIMEDOUT, /* 13 */ 195 DORECAL, /* 14 */ 196 RECALWAIT, /* 15 */ 197 RECALTIMEDOUT, /* 16 */ 198 RECALCOMPLETE, /* 17 */ 199 DODSKCHG, /* 18 */ 200 DSKCHGWAIT, /* 19 */ 201 DSKCHGTIMEDOUT, /* 20 */ 202 }; 203 204 /* software state, per controller */ 205 struct fdc_softc { 206 struct device sc_dev; /* boilerplate */ 207 bus_space_tag_t sc_bustag; 208 209 struct callout sc_timo_ch; /* timeout callout */ 210 struct callout sc_intr_ch; /* pseudo-intr callout */ 211 212 struct fd_softc *sc_fd[4]; /* pointers to children */ 213 TAILQ_HEAD(drivehead, fd_softc) sc_drives; 214 enum fdc_state sc_state; 215 int sc_flags; 216 #define FDC_82077 0x01 217 #define FDC_NEEDHEADSETTLE 0x02 218 #define FDC_EIS 0x04 219 #define FDC_NEEDMOTORWAIT 0x08 220 #define FDC_NOEJECT 0x10 221 #define FDC_EBUS 0x20 222 int sc_errors; /* number of retries so far */ 223 int sc_overruns; /* number of DMA overruns */ 224 int sc_cfg; /* current configuration */ 225 struct fdcio sc_io; 226 #define sc_handle sc_io.fdcio_handle 227 #define sc_reg_msr sc_io.fdcio_reg_msr 228 #define sc_reg_fifo sc_io.fdcio_reg_fifo 229 #define sc_reg_dor sc_io.fdcio_reg_dor 230 #define sc_reg_dir sc_io.fdcio_reg_dir 231 #define sc_reg_drs sc_io.fdcio_reg_msr 232 #define sc_itask sc_io.fdcio_itask 233 #define sc_istatus sc_io.fdcio_istatus 234 #define sc_data sc_io.fdcio_data 235 #define sc_tc sc_io.fdcio_tc 236 #define sc_nstat sc_io.fdcio_nstat 237 #define sc_status sc_io.fdcio_status 238 #define sc_intrcnt sc_io.fdcio_intrcnt 239 240 void *sc_sicookie; /* softintr(9) cookie */ 241 }; 242 243 #ifdef SUN4 244 extern struct fdcio *fdciop; /* I/O descriptor used in fdintr.s */ 245 #endif 246 247 /* controller driver configuration */ 248 #ifdef SUN4 249 int fdcmatch_mainbus(struct device *, struct cfdata *, void*); 250 int fdcmatch_obio(struct device *, struct cfdata *, void *); 251 void fdcattach_mainbus(struct device *, struct device *, void *); 252 void fdcattach_obio(struct device *, struct device *, void *); 253 #elif SUN4U 254 int fdcmatch_sbus(struct device *, struct cfdata *, void *); 255 int fdcmatch_ebus(struct device *, struct cfdata *, void *); 256 void fdcattach_sbus(struct device *, struct device *, void *); 257 void fdcattach_ebus(struct device *, struct device *, void *); 258 #endif 259 260 int fdcattach(struct fdc_softc *, int); 261 262 #ifdef SUN4 263 CFATTACH_DECL(fdc_mainbus, sizeof(struct fdc_softc), 264 fdcmatch_mainbus, fdcattach_mainbus, NULL, NULL); 265 266 CFATTACH_DECL(fdc_obio, sizeof(struct fdc_softc), 267 fdcmatch_obio, fdcattach_obio, NULL, NULL); 268 #elif SUN4U 269 CFATTACH_DECL(fdc_sbus, sizeof(struct fdc_softc), 270 fdcmatch_sbus, fdcattach_sbus, NULL, NULL); 271 272 CFATTACH_DECL(fdc_ebus, sizeof(struct fdc_softc), 273 fdcmatch_ebus, fdcattach_ebus, NULL, NULL); 274 #endif 275 276 inline struct fd_type *fd_dev_to_type(struct fd_softc *, dev_t); 277 278 /* 279 * Floppies come in various flavors, e.g., 1.2MB vs 1.44MB; here is how 280 * we tell them apart. 281 */ 282 struct fd_type { 283 int sectrac; /* sectors per track */ 284 int heads; /* number of heads */ 285 int seccyl; /* sectors per cylinder */ 286 int secsize; /* size code for sectors */ 287 int datalen; /* data len when secsize = 0 */ 288 int steprate; /* step rate and head unload time */ 289 int gap1; /* gap len between sectors */ 290 int gap2; /* formatting gap */ 291 int cylinders; /* total num of cylinders */ 292 int size; /* size of disk in sectors */ 293 int step; /* steps per cylinder */ 294 int rate; /* transfer speed code */ 295 int fillbyte; /* format fill byte */ 296 int interleave; /* interleave factor (formatting) */ 297 const char *name; 298 }; 299 300 /* The order of entries in the following table is important -- BEWARE! */ 301 struct fd_type fd_types[] = { 302 { 18,2,36,2,0xff,0xcf,0x1b,0x54,80,2880,1,FDC_500KBPS,0xf6,1, "1.44MB" }, /* 1.44MB diskette */ 303 { 9,2,18,2,0xff,0xdf,0x2a,0x50,80,1440,1,FDC_250KBPS,0xf6,1, "720KB" }, /* 3.5" 720kB diskette */ 304 { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,2,FDC_250KBPS,0xf6,1, "360KB/x" }, /* 360kB in 720kB drive */ 305 { 8,2,16,3,0xff,0xdf,0x35,0x74,77,1232,1,FDC_500KBPS,0xf6,1, "1.2MB/NEC" } /* 1.2 MB japanese format */ 306 }; 307 308 /* software state, per disk (with up to 4 disks per ctlr) */ 309 struct fd_softc { 310 struct device sc_dv; /* generic device info */ 311 struct disk sc_dk; /* generic disk info */ 312 313 struct fd_type *sc_deftype; /* default type descriptor */ 314 struct fd_type *sc_type; /* current type descriptor */ 315 316 struct callout sc_motoron_ch; 317 struct callout sc_motoroff_ch; 318 319 daddr_t sc_blkno; /* starting block number */ 320 int sc_bcount; /* byte count left */ 321 int sc_skip; /* bytes already transferred */ 322 int sc_nblks; /* number of blocks currently transferring */ 323 int sc_nbytes; /* number of bytes currently transferring */ 324 325 int sc_drive; /* physical unit number */ 326 int sc_flags; 327 #define FD_OPEN 0x01 /* it's open */ 328 #define FD_MOTOR 0x02 /* motor should be on */ 329 #define FD_MOTOR_WAIT 0x04 /* motor coming up */ 330 int sc_cylin; /* where we think the head is */ 331 int sc_opts; /* user-set options */ 332 333 void *sc_sdhook; /* shutdownhook cookie */ 334 335 TAILQ_ENTRY(fd_softc) sc_drivechain; 336 int sc_ops; /* I/O ops since last switch */ 337 struct bufq_state *sc_q;/* pending I/O requests */ 338 int sc_active; /* number of active I/O requests */ 339 }; 340 341 /* floppy driver configuration */ 342 int fdmatch(struct device *, struct cfdata *, void *); 343 void fdattach(struct device *, struct device *, void *); 344 345 CFATTACH_DECL(fd, sizeof(struct fd_softc), 346 fdmatch, fdattach, NULL, NULL); 347 348 extern struct cfdriver fd_cd; 349 350 dev_type_open(fdopen); 351 dev_type_close(fdclose); 352 dev_type_read(fdread); 353 dev_type_write(fdwrite); 354 dev_type_ioctl(fdioctl); 355 dev_type_strategy(fdstrategy); 356 357 const struct bdevsw fd_bdevsw = { 358 fdopen, fdclose, fdstrategy, fdioctl, nodump, nosize, D_DISK 359 }; 360 361 const struct cdevsw fd_cdevsw = { 362 fdopen, fdclose, fdread, fdwrite, fdioctl, 363 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 364 }; 365 366 void fdgetdisklabel(dev_t); 367 int fd_get_parms(struct fd_softc *); 368 void fdstrategy(struct buf *); 369 void fdstart(struct fd_softc *); 370 int fdprint(void *, const char *); 371 372 struct dkdriver fddkdriver = { fdstrategy, NULL }; 373 374 struct fd_type *fd_nvtotype(char *, int, int); 375 void fd_set_motor(struct fdc_softc *); 376 void fd_motor_off(void *); 377 void fd_motor_on(void *); 378 int fdcresult(struct fdc_softc *); 379 int fdc_wrfifo(struct fdc_softc *, uint8_t); 380 void fdcstart(struct fdc_softc *); 381 void fdcstatus(struct fdc_softc *, const char *); 382 void fdc_reset(struct fdc_softc *); 383 int fdc_diskchange(struct fdc_softc *); 384 void fdctimeout(void *); 385 void fdcpseudointr(void *); 386 int fdc_c_hwintr(void *); 387 void fdchwintr(void); 388 void fdcswintr(void *); 389 int fdcstate(struct fdc_softc *); 390 void fdcretry(struct fdc_softc *); 391 void fdfinish(struct fd_softc *, struct buf *); 392 int fdformat(dev_t, struct ne7_fd_formb *, struct proc *); 393 void fd_do_eject(struct fd_softc *); 394 void fd_mountroot_hook(struct device *); 395 static int fdconf(struct fdc_softc *); 396 static void establish_chip_type( 397 struct fdc_softc *, 398 bus_space_tag_t, 399 bus_addr_t, 400 bus_size_t, 401 bus_space_handle_t); 402 static void fd_set_properties(struct fd_softc *); 403 404 #ifdef MEMORY_DISK_HOOKS 405 int fd_read_md_image(size_t *, caddr_t *); 406 #endif 407 408 #ifdef SUN4 409 #define OBP_FDNAME (CPU_ISSUN4M ? "SUNW,fdtwo" : "fd") 410 411 int 412 fdcmatch_mainbus(struct device *parent, struct cfdata *match, void *aux) 413 { 414 struct mainbus_attach_args *ma = aux; 415 416 /* 417 * Floppy controller is on mainbus on sun4c. 418 */ 419 if (!CPU_ISSUN4C) 420 return 0; 421 422 /* sun4c PROMs call the controller "fd" */ 423 if (strcmp("fd", ma->ma_name) != 0) 424 return 0; 425 426 return bus_space_probe(ma->ma_bustag, 427 ma->ma_paddr, 428 1, /* probe size */ 429 0, /* offset */ 430 0, /* flags */ 431 NULL, NULL); 432 } 433 434 int 435 fdcmatch_obio(struct device *parent, struct cfdata *match, void *aux) 436 { 437 union obio_attach_args *uoba = aux; 438 struct sbus_attach_args *sa; 439 440 /* 441 * Floppy controller is on obio on sun4m. 442 */ 443 if (uoba->uoba_isobio4 != 0) 444 return 0; 445 446 sa = &uoba->uoba_sbus; 447 448 /* sun4m PROMs call the controller "SUNW,fdtwo" */ 449 if (strcmp("SUNW,fdtwo", sa->sa_name) != 0) 450 return 0; 451 452 return bus_space_probe(sa->sa_bustag, 453 sbus_bus_addr(sa->sa_bustag, 454 sa->sa_slot, sa->sa_offset), 455 1, /* probe size */ 456 0, /* offset */ 457 0, /* flags */ 458 NULL, NULL); 459 } 460 461 #elif SUN4U 462 463 int 464 fdcmatch_sbus(struct device *parent, struct cfdata *match, void *aux) 465 { 466 struct sbus_attach_args *sa = aux; 467 468 return strcmp("SUNW,fdtwo", sa->sa_name) == 0; 469 } 470 471 int 472 fdcmatch_ebus(struct device *parent, struct cfdata *match, void *aux) 473 { 474 struct ebus_attach_args *ea = aux; 475 476 return strcmp("fdthree", ea->ea_name) == 0; 477 } 478 #endif 479 480 static void 481 establish_chip_type(struct fdc_softc *fdc, 482 bus_space_tag_t tag, bus_addr_t addr, bus_size_t size, 483 bus_space_handle_t handle) 484 { 485 uint8_t v; 486 487 /* 488 * This hack from Chris Torek: apparently DOR really 489 * addresses MSR/DRS on a 82072. 490 * We used to rely on the VERSION command to tell the 491 * difference (which did not work). 492 */ 493 494 /* First, check the size of the register bank */ 495 if (size < 8) 496 /* It isn't a 82077 */ 497 return; 498 499 #ifdef SUN4 500 /* Then probe the DOR register offset */ 501 if (bus_space_probe(tag, addr, 502 1, /* probe size */ 503 FDREG77_DOR, /* offset */ 504 0, /* flags */ 505 NULL, NULL) == 0) { 506 507 /* It isn't a 82077 */ 508 return; 509 } 510 #endif 511 512 v = bus_space_read_1(tag, handle, FDREG77_DOR); 513 if (v == NE7_RQM) { 514 /* 515 * Value in DOR looks like it's really MSR 516 */ 517 bus_space_write_1(tag, handle, FDREG77_DOR, FDC_250KBPS); 518 v = bus_space_read_1(tag, handle, FDREG77_DOR); 519 if (v == NE7_RQM) { 520 /* 521 * The value in the DOR didn't stick; 522 * it isn't a 82077 523 */ 524 return; 525 } 526 } 527 528 fdc->sc_flags |= FDC_82077; 529 } 530 531 /* 532 * Arguments passed between fdcattach and fdprobe. 533 */ 534 struct fdc_attach_args { 535 int fa_drive; 536 struct fd_type *fa_deftype; 537 }; 538 539 /* 540 * Print the location of a disk drive (called just before attaching the 541 * the drive). If `fdc' is not NULL, the drive was found but was not 542 * in the system config file; print the drive name as well. 543 * Return QUIET (config_find ignores this if the device was configured) to 544 * avoid printing `fdN not configured' messages. 545 */ 546 int 547 fdprint(void *aux, const char *fdc) 548 { 549 register struct fdc_attach_args *fa = aux; 550 551 if (!fdc) 552 aprint_normal(" drive %d", fa->fa_drive); 553 return QUIET; 554 } 555 556 /* 557 * Configure several parameters and features on the FDC. 558 * Return 0 on success. 559 */ 560 static int 561 fdconf(struct fdc_softc *fdc) 562 { 563 int vroom; 564 565 if (fdc_wrfifo(fdc, NE7CMD_DUMPREG) || fdcresult(fdc) != 10) 566 return -1; 567 568 /* 569 * dumpreg[7] seems to be a motor-off timeout; set it to whatever 570 * the PROM thinks is appropriate. 571 */ 572 if ((vroom = fdc->sc_status[7]) == 0) 573 vroom = 0x64; 574 575 /* Configure controller to use FIFO and Implied Seek */ 576 if (fdc_wrfifo(fdc, NE7CMD_CFG) != 0) 577 return -1; 578 if (fdc_wrfifo(fdc, vroom) != 0) 579 return -1; 580 if (fdc_wrfifo(fdc, fdc->sc_cfg) != 0) 581 return -1; 582 if (fdc_wrfifo(fdc, 0) != 0) /* PRETRK */ 583 return -1; 584 /* No result phase for the NE7CMD_CFG command */ 585 586 if ((fdc->sc_flags & FDC_82077) != 0) { 587 /* Lock configuration across soft resets. */ 588 if (fdc_wrfifo(fdc, NE7CMD_LOCK | CFG_LOCK) != 0 || 589 fdcresult(fdc) != 1) { 590 #ifdef DEBUG 591 printf("fdconf: CFGLOCK failed"); 592 #endif 593 return -1; 594 } 595 } 596 597 return 0; 598 #if 0 599 if (fdc_wrfifo(fdc, NE7CMD_VERSION) == 0 && 600 fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x90) { 601 if (fdc_debug) 602 printf("[version cmd]"); 603 } 604 #endif 605 } 606 607 #ifdef SUN4 608 void 609 fdcattach_mainbus(struct device *parent, struct device *self, void *aux) 610 { 611 struct fdc_softc *fdc = (void *)self; 612 struct mainbus_attach_args *ma = aux; 613 614 fdc->sc_bustag = ma->ma_bustag; 615 616 if (bus_space_map( 617 ma->ma_bustag, 618 ma->ma_paddr, 619 ma->ma_size, 620 BUS_SPACE_MAP_LINEAR, 621 &fdc->sc_handle) != 0) { 622 printf("%s: cannot map registers\n", self->dv_xname); 623 return; 624 } 625 626 establish_chip_type(fdc, 627 ma->ma_bustag, 628 ma->ma_paddr, 629 ma->ma_size, 630 fdc->sc_handle); 631 632 if (fdcattach(fdc, ma->ma_pri) != 0) 633 bus_space_unmap(ma->ma_bustag, fdc->sc_handle, ma->ma_size); 634 } 635 636 void 637 fdcattach_obio(struct device *parent, struct device *self, void *aux) 638 { 639 struct fdc_softc *fdc = (void *)self; 640 union obio_attach_args *uoba = aux; 641 struct sbus_attach_args *sa = &uoba->uoba_sbus; 642 643 if (sa->sa_nintr == 0) { 644 printf(": no interrupt line configured\n"); 645 return; 646 } 647 648 fdc->sc_bustag = sa->sa_bustag; 649 650 if (sbus_bus_map(sa->sa_bustag, 651 sa->sa_slot, sa->sa_offset, sa->sa_size, 652 BUS_SPACE_MAP_LINEAR, &fdc->sc_handle) != 0) { 653 printf("%s: cannot map control registers\n", 654 self->dv_xname); 655 return; 656 } 657 658 establish_chip_type(fdc, 659 sa->sa_bustag, 660 sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset), 661 sa->sa_size, 662 fdc->sc_handle); 663 664 if (strcmp(prom_getpropstring(sa->sa_node, "status"), "disabled") == 0) { 665 print(": no drives attached\n"); 666 return; 667 } 668 669 if (fdcattach(fdc, sa->sa_pri) != 0) 670 bus_space_unmap(sa->sa_bustag, fdc->sc_handle, sa->sa_size); 671 } 672 673 #elif SUN4U 674 675 void 676 fdcattach_sbus(struct device *parent, struct device *self, void *aux) 677 { 678 struct fdc_softc *fdc = (void *)self; 679 struct sbus_attach_args *sa = aux; 680 681 if (sa->sa_nintr == 0) { 682 printf(": no interrupt line configured\n"); 683 return; 684 } 685 686 if (auxio_fd_control(0) != 0) { 687 printf(": can't attach before auxio\n"); 688 return; 689 } 690 691 fdc->sc_bustag = sa->sa_bustag; 692 693 if (bus_space_map(sa->sa_bustag, BUS_ADDR(sa->sa_slot, sa->sa_offset), 694 sa->sa_size, 0, &fdc->sc_handle) != 0) { 695 printf(": cannot map control registers\n"); 696 return; 697 } 698 699 establish_chip_type(fdc, 700 sa->sa_bustag, 701 BUS_ADDR(sa->sa_slot, sa->sa_offset), 702 sa->sa_size, 703 fdc->sc_handle); 704 705 if (strcmp(prom_getpropstring(sa->sa_node, "status"), "disabled") == 0) { 706 printf(": no drives attached\n"); 707 return; 708 } 709 710 if (prom_getproplen(sa->sa_node, "manual") >= 0) 711 fdc->sc_flags |= FDC_NOEJECT; 712 713 714 if (fdcattach(fdc, sa->sa_pri) != 0) 715 bus_space_unmap(sa->sa_bustag, fdc->sc_handle, sa->sa_size); 716 } 717 718 void 719 fdcattach_ebus(struct device *parent, struct device *self, void *aux) 720 { 721 struct fdc_softc *fdc = (void *)self; 722 struct ebus_attach_args *ea = aux; 723 int map_vaddr; 724 725 if (ea->ea_nintr == 0) { 726 printf(": no interrupt line configured\n"); 727 return; 728 } 729 730 if (ea->ea_nreg < 3) { 731 printf(": expected 3 registers, only got %d\n", 732 ea->ea_nreg); 733 return; 734 } 735 736 fdc->sc_bustag = ea->ea_bustag; 737 738 if (ea->ea_nvaddr > 0) { 739 sparc_promaddr_to_handle(ea->ea_bustag, 740 ea->ea_vaddr[0], &fdc->sc_handle); 741 map_vaddr = 1; 742 } else if (bus_space_map(fdc->sc_bustag, 743 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 744 ea->ea_reg[0].size, 0, &fdc->sc_handle) == 0) { 745 map_vaddr = 0; 746 } else { 747 printf(": can't map control registers\n"); 748 return; 749 } 750 751 establish_chip_type(fdc, 752 fdc->sc_bustag, 753 map_vaddr ? ea->ea_vaddr[0] : 754 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 755 ea->ea_reg[0].size, 756 fdc->sc_handle); 757 758 fdc->sc_flags |= FDC_EBUS; 759 760 if (prom_getproplen(ea->ea_node, "manual") >= 0) 761 fdc->sc_flags |= FDC_NOEJECT; 762 763 /* XXX unmapping if it fails */ 764 fdcattach(fdc, ea->ea_intr[0]); 765 } 766 #endif 767 768 int 769 fdcattach(struct fdc_softc *fdc, int pri) 770 { 771 struct fdc_attach_args fa; 772 int drive_attached; 773 char code; 774 775 callout_init(&fdc->sc_timo_ch); 776 callout_init(&fdc->sc_intr_ch); 777 778 fdc->sc_state = DEVIDLE; 779 fdc->sc_itask = FDC_ITASK_NONE; 780 fdc->sc_istatus = FDC_ISTATUS_NONE; 781 fdc->sc_flags |= FDC_EIS; 782 TAILQ_INIT(&fdc->sc_drives); 783 784 if ((fdc->sc_flags & FDC_82077) != 0) { 785 fdc->sc_reg_msr = FDREG77_MSR; 786 fdc->sc_reg_fifo = FDREG77_FIFO; 787 fdc->sc_reg_dor = FDREG77_DOR; 788 fdc->sc_reg_dir = FDREG77_DIR; 789 code = '7'; 790 fdc->sc_flags |= FDC_NEEDMOTORWAIT; 791 } else { 792 fdc->sc_reg_msr = FDREG72_MSR; 793 fdc->sc_reg_fifo = FDREG72_FIFO; 794 fdc->sc_reg_dor = 0; 795 code = '2'; 796 } 797 798 /* 799 * Configure controller; enable FIFO, Implied seek, no POLL mode?. 800 * Note: CFG_EFIFO is active-low, initial threshold value: 8 801 */ 802 fdc->sc_cfg = CFG_EIS|/*CFG_EFIFO|*/CFG_POLL|(8 & CFG_THRHLD_MASK); 803 if (fdconf(fdc) != 0) { 804 printf(": no drives attached\n"); 805 return -1; 806 } 807 808 #ifdef SUN4 809 fdciop = &fdc->sc_io; 810 if (bus_intr_establish2(fdc->sc_bustag, pri, 0 811 fdc_c_hwintr, fdc, fdchwintr) == NULL) { 812 #elif SUN4U 813 if (bus_intr_establish(fdc->sc_bustag, pri, IPL_BIO, 814 fdc_c_hwintr, fdc) == NULL) { 815 #endif 816 printf("\n%s: cannot register interrupt handler\n", 817 fdc->sc_dev.dv_xname); 818 return -1; 819 } 820 821 #ifdef SUN4 822 fdc->sc_sicookie = softintr_establish(IPL_BIO, fdcswintr, fdc); 823 #elif SUN4U 824 fdc->sc_sicookie = softintr_establish(IPL_FDSOFT, fdcswintr, fdc); 825 #endif 826 if (fdc->sc_sicookie == NULL) { 827 printf("\n%s: cannot register soft interrupt handler\n", 828 fdc->sc_dev.dv_xname); 829 return -1; 830 } 831 #ifdef SUN4 832 printf(" softpri %d: chip 8207%c\n", IPL_SOFTFDC, code); 833 #elif SUN4U 834 printf(" softpri %d: chip 8207%c", PIL_FDSOFT, code); 835 if (fdc->sc_flags & FDC_NOEJECT) 836 printf(": manual eject"); 837 printf("\n"); 838 #endif 839 840 evcnt_attach_dynamic(&fdc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 841 fdc->sc_dev.dv_xname, "intr"); 842 843 /* physical limit: four drives per controller. */ 844 drive_attached = 0; 845 for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) { 846 fa.fa_deftype = NULL; /* unknown */ 847 fa.fa_deftype = &fd_types[0]; /* XXX */ 848 if (config_found(&fdc->sc_dev, (void *)&fa, fdprint) != NULL) 849 drive_attached = 1; 850 } 851 852 if (drive_attached == 0) { 853 /* XXX - dis-establish interrupts here */ 854 /* return -1; */ 855 } 856 857 return 0; 858 } 859 860 int 861 fdmatch(struct device *parent, struct cfdata *match, void *aux) 862 { 863 struct fdc_softc *fdc = (void *)parent; 864 bus_space_tag_t t = fdc->sc_bustag; 865 bus_space_handle_t h = fdc->sc_handle; 866 struct fdc_attach_args *fa = aux; 867 int drive = fa->fa_drive; 868 int n, ok; 869 870 if (drive > 0) 871 /* XXX - for now, punt on more than one drive */ 872 return 0; 873 874 if ((fdc->sc_flags & FDC_82077) != 0) { 875 /* select drive and turn on motor */ 876 bus_space_write_1(t, h, fdc->sc_reg_dor, 877 drive | FDO_FRST | FDO_MOEN(drive)); 878 /* wait for motor to spin up */ 879 delay(250000); 880 #ifdef SUN4 881 } else { 882 auxregbisc(AUXIO4C_FDS, 0); 883 #endif 884 } 885 fdc->sc_nstat = 0; 886 fdc_wrfifo(fdc, NE7CMD_RECAL); 887 fdc_wrfifo(fdc, drive); 888 889 /* Wait for recalibration to complete */ 890 for (n = 0; n < 10000; n++) { 891 uint8_t v; 892 893 delay(1000); 894 v = bus_space_read_1(t, h, fdc->sc_reg_msr); 895 if ((v & (NE7_RQM|NE7_DIO|NE7_CB)) == NE7_RQM) { 896 /* wait a bit longer till device *really* is ready */ 897 delay(100000); 898 if (fdc_wrfifo(fdc, NE7CMD_SENSEI)) 899 break; 900 if (fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x80) 901 /* 902 * Got `invalid command'; we interpret it 903 * to mean that the re-calibrate hasn't in 904 * fact finished yet 905 */ 906 continue; 907 break; 908 } 909 } 910 n = fdc->sc_nstat; 911 #ifdef FD_DEBUG 912 if (fdc_debug) { 913 int i; 914 printf("fdprobe: %d stati:", n); 915 for (i = 0; i < n; i++) 916 printf(" 0x%x", fdc->sc_status[i]); 917 printf("\n"); 918 } 919 #endif 920 ok = (n == 2 && (fdc->sc_status[0] & 0xf8) == 0x20) ? 1 : 0; 921 922 /* turn off motor */ 923 if ((fdc->sc_flags & FDC_82077) != 0) { 924 /* deselect drive and turn motor off */ 925 bus_space_write_1(t, h, fdc->sc_reg_dor, FDO_FRST | FDO_DS); 926 #ifdef SUN4 927 } else { 928 auxregbisc(0, AUXIO4C_FDS); 929 #endif 930 } 931 932 return ok; 933 } 934 935 /* 936 * Controller is working, and drive responded. Attach it. 937 */ 938 void 939 fdattach(struct device *parent, struct device *self, void *aux) 940 { 941 struct fdc_softc *fdc = (void *)parent; 942 struct fd_softc *fd = (void *)self; 943 struct fdc_attach_args *fa = aux; 944 struct fd_type *type = fa->fa_deftype; 945 int drive = fa->fa_drive; 946 947 callout_init(&fd->sc_motoron_ch); 948 callout_init(&fd->sc_motoroff_ch); 949 950 /* XXX Allow `flags' to override device type? */ 951 952 if (type) 953 printf(": %s %d cyl, %d head, %d sec\n", type->name, 954 type->cylinders, type->heads, type->sectrac); 955 else 956 printf(": density unknown\n"); 957 958 bufq_alloc(&fd->sc_q, "disksort", BUFQ_SORT_CYLINDER); 959 fd->sc_cylin = -1; 960 fd->sc_drive = drive; 961 fd->sc_deftype = type; 962 fdc->sc_fd[drive] = fd; 963 964 fdc_wrfifo(fdc, NE7CMD_SPECIFY); 965 fdc_wrfifo(fdc, type->steprate); 966 /* XXX head load time == 6ms */ 967 fdc_wrfifo(fdc, 6 | NE7_SPECIFY_NODMA); 968 969 /* 970 * Initialize and attach the disk structure. 971 */ 972 fd->sc_dk.dk_name = fd->sc_dv.dv_xname; 973 fd->sc_dk.dk_driver = &fddkdriver; 974 disk_attach(&fd->sc_dk); 975 976 /* 977 * Establish a mountroot_hook anyway in case we booted 978 * with RB_ASKNAME and get selected as the boot device. 979 */ 980 mountroothook_establish(fd_mountroot_hook, &fd->sc_dv); 981 982 fd_set_properties(fd); 983 984 /* Make sure the drive motor gets turned off at shutdown time. */ 985 fd->sc_sdhook = shutdownhook_establish(fd_motor_off, fd); 986 } 987 988 inline struct fd_type * 989 fd_dev_to_type(struct fd_softc *fd, dev_t dev) 990 { 991 int type = FDTYPE(dev); 992 993 if (type > (sizeof(fd_types) / sizeof(fd_types[0]))) 994 return NULL; 995 return type ? &fd_types[type - 1] : fd->sc_deftype; 996 } 997 998 void 999 fdstrategy(struct buf *bp) 1000 { 1001 struct fd_softc *fd; 1002 int unit = FDUNIT(bp->b_dev); 1003 int sz; 1004 int s; 1005 1006 /* Valid unit, controller, and request? */ 1007 if (unit >= fd_cd.cd_ndevs || 1008 (fd = fd_cd.cd_devs[unit]) == 0 || 1009 bp->b_blkno < 0 || 1010 (((bp->b_bcount % FD_BSIZE(fd)) != 0 || 1011 (bp->b_blkno * DEV_BSIZE) % FD_BSIZE(fd) != 0) && 1012 (bp->b_flags & B_FORMAT) == 0)) { 1013 bp->b_error = EINVAL; 1014 goto bad; 1015 } 1016 1017 /* If it's a null transfer, return immediately. */ 1018 if (bp->b_bcount == 0) 1019 goto done; 1020 1021 sz = howmany(bp->b_bcount, DEV_BSIZE); 1022 1023 if (bp->b_blkno + sz > (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd)) { 1024 sz = (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd) 1025 - bp->b_blkno; 1026 if (sz == 0) { 1027 /* If exactly at end of disk, return EOF. */ 1028 bp->b_resid = bp->b_bcount; 1029 goto done; 1030 } 1031 if (sz < 0) { 1032 /* If past end of disk, return EINVAL. */ 1033 bp->b_error = EINVAL; 1034 goto bad; 1035 } 1036 /* Otherwise, truncate request. */ 1037 bp->b_bcount = sz << DEV_BSHIFT; 1038 } 1039 1040 bp->b_rawblkno = bp->b_blkno; 1041 bp->b_cylinder = (bp->b_blkno * DEV_BSIZE) / 1042 (FD_BSIZE(fd) * fd->sc_type->seccyl); 1043 1044 #ifdef FD_DEBUG 1045 if (fdc_debug > 1) 1046 printf("fdstrategy: b_blkno %lld b_bcount %d blkno %lld cylin %d\n", 1047 (long long)bp->b_blkno, bp->b_bcount, 1048 (long long)fd->sc_blkno, bp->b_cylinder); 1049 #endif 1050 1051 /* Queue transfer on drive, activate drive and controller if idle. */ 1052 s = splbio(); 1053 BUFQ_PUT(fd->sc_q, bp); 1054 callout_stop(&fd->sc_motoroff_ch); /* a good idea */ 1055 if (fd->sc_active == 0) 1056 fdstart(fd); 1057 #ifdef DIAGNOSTIC 1058 else { 1059 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1060 if (fdc->sc_state == DEVIDLE) { 1061 printf("fdstrategy: controller inactive\n"); 1062 fdcstart(fdc); 1063 } 1064 } 1065 #endif 1066 splx(s); 1067 return; 1068 1069 bad: 1070 bp->b_flags |= B_ERROR; 1071 done: 1072 /* Toss transfer; we're done early. */ 1073 biodone(bp); 1074 } 1075 1076 void 1077 fdstart(struct fd_softc *fd) 1078 { 1079 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1080 int active = fdc->sc_drives.tqh_first != 0; 1081 1082 /* Link into controller queue. */ 1083 fd->sc_active = 1; 1084 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 1085 1086 /* If controller not already active, start it. */ 1087 if (!active) 1088 fdcstart(fdc); 1089 } 1090 1091 void 1092 fdfinish(struct fd_softc *fd, struct buf *bp) 1093 { 1094 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1095 1096 /* 1097 * Move this drive to the end of the queue to give others a `fair' 1098 * chance. We only force a switch if N operations are completed while 1099 * another drive is waiting to be serviced, since there is a long motor 1100 * startup delay whenever we switch. 1101 */ 1102 (void)BUFQ_GET(fd->sc_q); 1103 if (fd->sc_drivechain.tqe_next && ++fd->sc_ops >= 8) { 1104 fd->sc_ops = 0; 1105 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1106 if (BUFQ_PEEK(fd->sc_q) != NULL) { 1107 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 1108 } else 1109 fd->sc_active = 0; 1110 } 1111 bp->b_resid = fd->sc_bcount; 1112 fd->sc_skip = 0; 1113 1114 biodone(bp); 1115 /* turn off motor 5s from now */ 1116 callout_reset(&fd->sc_motoroff_ch, 5 * hz, fd_motor_off, fd); 1117 fdc->sc_state = DEVIDLE; 1118 } 1119 1120 void 1121 fdc_reset(struct fdc_softc *fdc) 1122 { 1123 bus_space_tag_t t = fdc->sc_bustag; 1124 bus_space_handle_t h = fdc->sc_handle; 1125 1126 if ((fdc->sc_flags & FDC_82077) != 0) { 1127 bus_space_write_1(t, h, fdc->sc_reg_dor, 1128 FDO_FDMAEN | FDO_MOEN(0)); 1129 } 1130 1131 bus_space_write_1(t, h, fdc->sc_reg_drs, DRS_RESET); 1132 delay(10); 1133 bus_space_write_1(t, h, fdc->sc_reg_drs, 0); 1134 1135 if ((fdc->sc_flags & FDC_82077) != 0) { 1136 bus_space_write_1(t, h, fdc->sc_reg_dor, 1137 FDO_FRST | FDO_FDMAEN | FDO_DS); 1138 } 1139 #ifdef FD_DEBUG 1140 if (fdc_debug) 1141 printf("fdc reset\n"); 1142 #endif 1143 } 1144 1145 void 1146 fd_set_motor(struct fdc_softc *fdc) 1147 { 1148 struct fd_softc *fd; 1149 u_char status; 1150 int n; 1151 1152 if ((fdc->sc_flags & FDC_82077) != 0) { 1153 status = FDO_FRST | FDO_FDMAEN; 1154 if ((fd = fdc->sc_drives.tqh_first) != NULL) 1155 status |= fd->sc_drive; 1156 1157 for (n = 0; n < 4; n++) 1158 if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) 1159 status |= FDO_MOEN(n); 1160 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1161 fdc->sc_reg_dor, status); 1162 #ifdef SUN4 1163 } else { 1164 1165 for (n = 0; n < 4; n++) { 1166 if ((fd = fdc->sc_fd[n]) != NULL && 1167 (fd->sc_flags & FD_MOTOR) != 0) { 1168 auxregbisc(AUXIO4C_FDS, 0); 1169 return; 1170 } 1171 } 1172 auxregbisc(0, AUXIO4C_FDS); 1173 #endif 1174 } 1175 } 1176 1177 void 1178 fd_motor_off(void *arg) 1179 { 1180 struct fd_softc *fd = arg; 1181 int s; 1182 1183 s = splbio(); 1184 fd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1185 fd_set_motor((struct fdc_softc *)device_parent(&fd->sc_dv)); 1186 splx(s); 1187 } 1188 1189 void 1190 fd_motor_on(void *arg) 1191 { 1192 struct fd_softc *fd = arg; 1193 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1194 int s; 1195 1196 s = splbio(); 1197 fd->sc_flags &= ~FD_MOTOR_WAIT; 1198 if ((fdc->sc_drives.tqh_first == fd) && (fdc->sc_state == MOTORWAIT)) 1199 (void) fdcstate(fdc); 1200 splx(s); 1201 } 1202 1203 /* 1204 * Get status bytes off the FDC after a command has finished 1205 * Returns the number of status bytes read; -1 on error. 1206 * The return value is also stored in `sc_nstat'. 1207 */ 1208 int 1209 fdcresult(struct fdc_softc *fdc) 1210 { 1211 bus_space_tag_t t = fdc->sc_bustag; 1212 bus_space_handle_t h = fdc->sc_handle; 1213 int j, n = 0; 1214 1215 for (j = 10000; j; j--) { 1216 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_msr); 1217 v &= (NE7_DIO | NE7_RQM | NE7_CB); 1218 if (v == NE7_RQM) 1219 return fdc->sc_nstat = n; 1220 if (v == (NE7_DIO | NE7_RQM | NE7_CB)) { 1221 if (n >= sizeof(fdc->sc_status)) { 1222 log(LOG_ERR, "fdcresult: overrun\n"); 1223 return -1; 1224 } 1225 fdc->sc_status[n++] = 1226 bus_space_read_1(t, h, fdc->sc_reg_fifo); 1227 } else 1228 delay(1); 1229 } 1230 1231 log(LOG_ERR, "fdcresult: timeout\n"); 1232 return fdc->sc_nstat = -1; 1233 } 1234 1235 /* 1236 * Write a command byte to the FDC. 1237 * Returns 0 on success; -1 on failure (i.e. timeout) 1238 */ 1239 int 1240 fdc_wrfifo(struct fdc_softc *fdc, uint8_t x) 1241 { 1242 bus_space_tag_t t = fdc->sc_bustag; 1243 bus_space_handle_t h = fdc->sc_handle; 1244 int i; 1245 1246 for (i = 100000; i-- > 0;) { 1247 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_msr); 1248 if ((v & (NE7_DIO|NE7_RQM)) == NE7_RQM) { 1249 /* The chip is ready */ 1250 bus_space_write_1(t, h, fdc->sc_reg_fifo, x); 1251 return 0; 1252 } 1253 delay(1); 1254 } 1255 return -1; 1256 } 1257 1258 int 1259 fdc_diskchange(struct fdc_softc *fdc) 1260 { 1261 1262 #ifdef SUN4 1263 if (CPU_ISSUN4M && (fdc->sc_flags & FDC_82077) != 0) { 1264 #endif 1265 bus_space_tag_t t = fdc->sc_bustag; 1266 bus_space_handle_t h = fdc->sc_handle; 1267 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_dir); 1268 return (v & FDI_DCHG) != 0; 1269 #ifdef SUN4 1270 } else if (CPU_ISSUN4C) { 1271 return (*AUXIO4C_REG & AUXIO4C_FDC) != 0; 1272 } 1273 return 0; 1274 #endif 1275 } 1276 1277 int 1278 fdopen(dev_t dev, int flags, int fmt, struct lwp *l) 1279 { 1280 int unit, pmask; 1281 struct fd_softc *fd; 1282 struct fd_type *type; 1283 1284 unit = FDUNIT(dev); 1285 if (unit >= fd_cd.cd_ndevs) 1286 return ENXIO; 1287 fd = fd_cd.cd_devs[unit]; 1288 if (fd == NULL) 1289 return ENXIO; 1290 type = fd_dev_to_type(fd, dev); 1291 if (type == NULL) 1292 return ENXIO; 1293 1294 if ((fd->sc_flags & FD_OPEN) != 0 && 1295 fd->sc_type != type) 1296 return EBUSY; 1297 1298 fd->sc_type = type; 1299 fd->sc_cylin = -1; 1300 fd->sc_flags |= FD_OPEN; 1301 1302 /* 1303 * Only update the disklabel if we're not open anywhere else. 1304 */ 1305 if (fd->sc_dk.dk_openmask == 0) 1306 fdgetdisklabel(dev); 1307 1308 pmask = (1 << DISKPART(dev)); 1309 1310 switch (fmt) { 1311 case S_IFCHR: 1312 fd->sc_dk.dk_copenmask |= pmask; 1313 break; 1314 1315 case S_IFBLK: 1316 fd->sc_dk.dk_bopenmask |= pmask; 1317 break; 1318 } 1319 fd->sc_dk.dk_openmask = 1320 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1321 1322 return 0; 1323 } 1324 1325 int 1326 fdclose(dev_t dev, int flags, int fmt, struct lwp *l) 1327 { 1328 struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; 1329 int pmask = (1 << DISKPART(dev)); 1330 1331 fd->sc_flags &= ~FD_OPEN; 1332 fd->sc_opts &= ~(FDOPT_NORETRY|FDOPT_SILENT); 1333 1334 switch (fmt) { 1335 case S_IFCHR: 1336 fd->sc_dk.dk_copenmask &= ~pmask; 1337 break; 1338 1339 case S_IFBLK: 1340 fd->sc_dk.dk_bopenmask &= ~pmask; 1341 break; 1342 } 1343 fd->sc_dk.dk_openmask = 1344 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1345 1346 return 0; 1347 } 1348 1349 int 1350 fdread(dev_t dev, struct uio *uio, int flag) 1351 { 1352 1353 return physio(fdstrategy, NULL, dev, B_READ, minphys, uio); 1354 } 1355 1356 int 1357 fdwrite(dev_t dev, struct uio *uio, int flag) 1358 { 1359 1360 return physio(fdstrategy, NULL, dev, B_WRITE, minphys, uio); 1361 } 1362 1363 void 1364 fdcstart(struct fdc_softc *fdc) 1365 { 1366 1367 #ifdef DIAGNOSTIC 1368 /* only got here if controller's drive queue was inactive; should 1369 be in idle state */ 1370 if (fdc->sc_state != DEVIDLE) { 1371 printf("fdcstart: not idle\n"); 1372 return; 1373 } 1374 #endif 1375 (void)fdcstate(fdc); 1376 } 1377 1378 void 1379 fdcstatus(struct fdc_softc *fdc, const char *s) 1380 { 1381 struct fd_softc *fd = fdc->sc_drives.tqh_first; 1382 int n; 1383 char bits[64]; 1384 1385 /* Just print last status */ 1386 n = fdc->sc_nstat; 1387 1388 #if 0 1389 /* 1390 * A 82072 seems to return <invalid command> on 1391 * gratuitous Sense Interrupt commands. 1392 */ 1393 if (n == 0 && (fdc->sc_flags & FDC_82077) != 0) { 1394 fdc_wrfifo(fdc, NE7CMD_SENSEI); 1395 (void)fdcresult(fdc); 1396 n = 2; 1397 } 1398 #endif 1399 1400 printf("%s: %s: state %d", 1401 fd ? fd->sc_dv.dv_xname : "fdc", s, fdc->sc_state); 1402 1403 switch (n) { 1404 case 0: 1405 printf("\n"); 1406 break; 1407 case 2: 1408 printf(" (st0 %s cyl %d)\n", 1409 bitmask_snprintf(fdc->sc_status[0], NE7_ST0BITS, 1410 bits, sizeof(bits)), fdc->sc_status[1]); 1411 break; 1412 case 7: 1413 printf(" (st0 %s", bitmask_snprintf(fdc->sc_status[0], 1414 NE7_ST0BITS, bits, sizeof(bits))); 1415 printf(" st1 %s", bitmask_snprintf(fdc->sc_status[1], 1416 NE7_ST1BITS, bits, sizeof(bits))); 1417 printf(" st2 %s", bitmask_snprintf(fdc->sc_status[2], 1418 NE7_ST2BITS, bits, sizeof(bits))); 1419 printf(" cyl %d head %d sec %d)\n", 1420 fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); 1421 break; 1422 #ifdef DIAGNOSTIC 1423 default: 1424 printf(" fdcstatus: weird size: %d\n", n); 1425 break; 1426 #endif 1427 } 1428 } 1429 1430 void 1431 fdctimeout(void *arg) 1432 { 1433 struct fdc_softc *fdc = arg; 1434 struct fd_softc *fd; 1435 int s; 1436 1437 s = splbio(); 1438 fd = fdc->sc_drives.tqh_first; 1439 if (fd == NULL) { 1440 printf("%s: timeout but no I/O pending: state %d, istatus=%d\n", 1441 fdc->sc_dev.dv_xname, 1442 fdc->sc_state, fdc->sc_istatus); 1443 fdc->sc_state = DEVIDLE; 1444 goto out; 1445 } 1446 1447 if (BUFQ_PEEK(fd->sc_q) != NULL) 1448 fdc->sc_state++; 1449 else 1450 fdc->sc_state = DEVIDLE; 1451 1452 (void)fdcstate(fdc); 1453 out: 1454 splx(s); 1455 1456 } 1457 1458 void 1459 fdcpseudointr(void *arg) 1460 { 1461 struct fdc_softc *fdc = arg; 1462 int s; 1463 1464 /* Just ensure it has the right spl. */ 1465 s = splbio(); 1466 (void)fdcstate(fdc); 1467 splx(s); 1468 } 1469 1470 1471 /* 1472 * hardware interrupt entry point: used only if no `fast trap' * (in-window) 1473 * handler is available. Unfortunately, we have no reliable way to 1474 * determine that the interrupt really came from the floppy controller; 1475 * just hope that the other devices that share this interrupt level 1476 * can do better.. 1477 */ 1478 int 1479 fdc_c_hwintr(void *arg) 1480 { 1481 struct fdc_softc *fdc = arg; 1482 bus_space_tag_t t = fdc->sc_bustag; 1483 bus_space_handle_t h = fdc->sc_handle; 1484 1485 switch (fdc->sc_itask) { 1486 case FDC_ITASK_NONE: 1487 return 0; 1488 case FDC_ITASK_SENSEI: 1489 if (fdc_wrfifo(fdc, NE7CMD_SENSEI) != 0 || fdcresult(fdc) == -1) 1490 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1491 else 1492 fdc->sc_istatus = FDC_ISTATUS_DONE; 1493 softintr_schedule(fdc->sc_sicookie); 1494 return 1; 1495 case FDC_ITASK_RESULT: 1496 if (fdcresult(fdc) == -1) 1497 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1498 else 1499 fdc->sc_istatus = FDC_ISTATUS_DONE; 1500 softintr_schedule(fdc->sc_sicookie); 1501 return 1; 1502 case FDC_ITASK_DMA: 1503 /* Proceed with pseudo-DMA below */ 1504 break; 1505 default: 1506 printf("fdc: stray hard interrupt: itask=%d\n", fdc->sc_itask); 1507 fdc->sc_istatus = FDC_ISTATUS_SPURIOUS; 1508 softintr_schedule(fdc->sc_sicookie); 1509 return 1; 1510 } 1511 1512 /* 1513 * Pseudo DMA in progress 1514 */ 1515 for (;;) { 1516 uint8_t msr; 1517 1518 msr = bus_space_read_1(t, h, fdc->sc_reg_msr); 1519 1520 if ((msr & NE7_RQM) == 0) 1521 /* That's all this round */ 1522 break; 1523 1524 if ((msr & NE7_NDM) == 0) { 1525 fdcresult(fdc); 1526 fdc->sc_istatus = FDC_ISTATUS_DONE; 1527 softintr_schedule(fdc->sc_sicookie); 1528 #ifdef FD_DEBUG 1529 if (fdc_debug > 1) 1530 #ifdef SUN4 1531 printf("fdc: overrun: tc = %d\n", fdc->sc_tc); 1532 #elif SUN4U 1533 printf("fdc: overrun: msr = %x, tc = %d\n", 1534 msr, fdc->sc_tc); 1535 #endif 1536 #endif 1537 break; 1538 } 1539 1540 /* Another byte can be transferred */ 1541 if ((msr & NE7_DIO) != 0) 1542 *fdc->sc_data = 1543 bus_space_read_1(t, h, fdc->sc_reg_fifo); 1544 else 1545 bus_space_write_1(t, h, fdc->sc_reg_fifo, 1546 *fdc->sc_data); 1547 1548 fdc->sc_data++; 1549 if (--fdc->sc_tc == 0) { 1550 fdc->sc_istatus = FDC_ISTATUS_DONE; 1551 FTC_FLIP; 1552 fdcresult(fdc); 1553 softintr_schedule(fdc->sc_sicookie); 1554 break; 1555 } 1556 } 1557 return 1; 1558 } 1559 1560 void 1561 fdcswintr(void *arg) 1562 { 1563 struct fdc_softc *fdc = arg; 1564 1565 if (fdc->sc_istatus == FDC_ISTATUS_NONE) 1566 /* This (software) interrupt is not for us */ 1567 return; 1568 1569 switch (fdc->sc_istatus) { 1570 case FDC_ISTATUS_ERROR: 1571 printf("fdc: ierror status: state %d\n", fdc->sc_state); 1572 break; 1573 case FDC_ISTATUS_SPURIOUS: 1574 printf("fdc: spurious interrupt: state %d\n", fdc->sc_state); 1575 break; 1576 } 1577 1578 fdcstate(fdc); 1579 return; 1580 } 1581 1582 int 1583 fdcstate(struct fdc_softc *fdc) 1584 { 1585 1586 #define st0 fdc->sc_status[0] 1587 #define st1 fdc->sc_status[1] 1588 #define cyl fdc->sc_status[1] 1589 #define FDC_WRFIFO(fdc, c) do { \ 1590 if (fdc_wrfifo(fdc, (c))) { \ 1591 goto xxx; \ 1592 } \ 1593 } while(0) 1594 1595 struct fd_softc *fd; 1596 struct buf *bp; 1597 int read, head, sec, nblks; 1598 struct fd_type *type; 1599 struct ne7_fd_formb *finfo = NULL; 1600 1601 if (fdc->sc_istatus == FDC_ISTATUS_ERROR) { 1602 /* Prevent loop if the reset sequence produces errors */ 1603 if (fdc->sc_state != RESETCOMPLETE && 1604 fdc->sc_state != RECALWAIT && 1605 fdc->sc_state != RECALCOMPLETE) 1606 fdc->sc_state = DORESET; 1607 } 1608 1609 /* Clear I task/status field */ 1610 fdc->sc_istatus = FDC_ISTATUS_NONE; 1611 fdc->sc_itask = FDC_ITASK_NONE; 1612 1613 loop: 1614 /* Is there a drive for the controller to do a transfer with? */ 1615 fd = fdc->sc_drives.tqh_first; 1616 if (fd == NULL) { 1617 fdc->sc_state = DEVIDLE; 1618 return 0; 1619 } 1620 1621 /* Is there a transfer to this drive? If not, deactivate drive. */ 1622 bp = BUFQ_PEEK(fd->sc_q); 1623 if (bp == NULL) { 1624 fd->sc_ops = 0; 1625 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1626 fd->sc_active = 0; 1627 goto loop; 1628 } 1629 1630 if (bp->b_flags & B_FORMAT) 1631 finfo = (struct ne7_fd_formb *)bp->b_data; 1632 1633 switch (fdc->sc_state) { 1634 case DEVIDLE: 1635 fdc->sc_errors = 0; 1636 fd->sc_skip = 0; 1637 fd->sc_bcount = bp->b_bcount; 1638 fd->sc_blkno = (bp->b_blkno * DEV_BSIZE) / FD_BSIZE(fd); 1639 callout_stop(&fd->sc_motoroff_ch); 1640 if ((fd->sc_flags & FD_MOTOR_WAIT) != 0) { 1641 fdc->sc_state = MOTORWAIT; 1642 return 1; 1643 } 1644 if ((fd->sc_flags & FD_MOTOR) == 0) { 1645 /* Turn on the motor, being careful about pairing. */ 1646 struct fd_softc *ofd = fdc->sc_fd[fd->sc_drive ^ 1]; 1647 if (ofd && ofd->sc_flags & FD_MOTOR) { 1648 callout_stop(&ofd->sc_motoroff_ch); 1649 ofd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1650 } 1651 fd->sc_flags |= FD_MOTOR | FD_MOTOR_WAIT; 1652 fd_set_motor(fdc); 1653 fdc->sc_state = MOTORWAIT; 1654 if ((fdc->sc_flags & FDC_NEEDMOTORWAIT) != 0) { /*XXX*/ 1655 /* Allow .25s for motor to stabilize. */ 1656 callout_reset(&fd->sc_motoron_ch, hz / 4, 1657 fd_motor_on, fd); 1658 } else { 1659 fd->sc_flags &= ~FD_MOTOR_WAIT; 1660 goto loop; 1661 } 1662 return 1; 1663 } 1664 /* Make sure the right drive is selected. */ 1665 fd_set_motor(fdc); 1666 1667 if (fdc_diskchange(fdc)) 1668 goto dodskchg; 1669 1670 /*FALLTHROUGH*/ 1671 case DOSEEK: 1672 doseek: 1673 if ((fdc->sc_flags & FDC_EIS) && 1674 (bp->b_flags & B_FORMAT) == 0) { 1675 fd->sc_cylin = bp->b_cylinder; 1676 /* We use implied seek */ 1677 goto doio; 1678 } 1679 1680 if (fd->sc_cylin == bp->b_cylinder) 1681 goto doio; 1682 1683 fd->sc_cylin = -1; 1684 fdc->sc_state = SEEKWAIT; 1685 fdc->sc_nstat = 0; 1686 1687 iostat_seek(fd->sc_dk.dk_stats); 1688 1689 disk_busy(&fd->sc_dk); 1690 callout_reset(&fdc->sc_timo_ch, 4 * hz, fdctimeout, fdc); 1691 1692 /* specify command */ 1693 FDC_WRFIFO(fdc, NE7CMD_SPECIFY); 1694 FDC_WRFIFO(fdc, fd->sc_type->steprate); 1695 /* XXX head load time == 6ms */ 1696 FDC_WRFIFO(fdc, 6 | NE7_SPECIFY_NODMA); 1697 1698 fdc->sc_itask = FDC_ITASK_SENSEI; 1699 /* seek function */ 1700 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1701 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1702 FDC_WRFIFO(fdc, bp->b_cylinder * fd->sc_type->step); 1703 return 1; 1704 1705 case DODSKCHG: 1706 dodskchg: 1707 /* 1708 * Disk change: force a seek operation by going to cyl 1 1709 * followed by a recalibrate. 1710 */ 1711 disk_busy(&fd->sc_dk); 1712 callout_reset(&fdc->sc_timo_ch, 4 * hz, fdctimeout, fdc); 1713 fd->sc_cylin = -1; 1714 fdc->sc_nstat = 0; 1715 fdc->sc_state = DSKCHGWAIT; 1716 1717 fdc->sc_itask = FDC_ITASK_SENSEI; 1718 /* seek function */ 1719 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1720 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1721 FDC_WRFIFO(fdc, 1 * fd->sc_type->step); 1722 return 1; 1723 1724 case DSKCHGWAIT: 1725 callout_stop(&fdc->sc_timo_ch); 1726 disk_unbusy(&fd->sc_dk, 0, 0); 1727 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1728 cyl != 1 * fd->sc_type->step) { 1729 fdcstatus(fdc, "dskchg seek failed"); 1730 fdc->sc_state = DORESET; 1731 } else 1732 fdc->sc_state = DORECAL; 1733 1734 if (fdc_diskchange(fdc)) { 1735 printf("%s: cannot clear disk change status\n", 1736 fdc->sc_dev.dv_xname); 1737 fdc->sc_state = DORESET; 1738 } 1739 goto loop; 1740 1741 case DOIO: 1742 doio: 1743 if (finfo != NULL) 1744 fd->sc_skip = (char *)&(finfo->fd_formb_cylno(0)) - 1745 (char *)finfo; 1746 type = fd->sc_type; 1747 sec = fd->sc_blkno % type->seccyl; 1748 nblks = type->seccyl - sec; 1749 nblks = min(nblks, fd->sc_bcount / FD_BSIZE(fd)); 1750 nblks = min(nblks, FDC_MAXIOSIZE / FD_BSIZE(fd)); 1751 fd->sc_nblks = nblks; 1752 fd->sc_nbytes = finfo ? bp->b_bcount : nblks * FD_BSIZE(fd); 1753 head = sec / type->sectrac; 1754 sec -= head * type->sectrac; 1755 #ifdef DIAGNOSTIC 1756 {int block; 1757 block = (fd->sc_cylin * type->heads + head) * type->sectrac + 1758 sec; 1759 if (block != fd->sc_blkno) { 1760 printf("fdcintr: block %d != blkno %d\n", block, 1761 (int)fd->sc_blkno); 1762 #ifdef DDB 1763 Debugger(); 1764 #endif 1765 }} 1766 #endif 1767 read = bp->b_flags & B_READ; 1768 1769 /* Setup for pseudo DMA */ 1770 fdc->sc_data = bp->b_data + fd->sc_skip; 1771 fdc->sc_tc = fd->sc_nbytes; 1772 1773 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1774 fdc->sc_reg_drs, type->rate); 1775 #ifdef FD_DEBUG 1776 if (fdc_debug > 1) 1777 printf("fdcstate: doio: %s drive %d " 1778 "track %d head %d sec %d nblks %d\n", 1779 finfo ? "format" : 1780 (read ? "read" : "write"), 1781 fd->sc_drive, fd->sc_cylin, head, sec, nblks); 1782 #endif 1783 fdc->sc_state = IOCOMPLETE; 1784 fdc->sc_itask = FDC_ITASK_DMA; 1785 fdc->sc_nstat = 0; 1786 1787 disk_busy(&fd->sc_dk); 1788 1789 /* allow 3 seconds for operation */ 1790 callout_reset(&fdc->sc_timo_ch, 3 * hz, fdctimeout, fdc); 1791 1792 if (finfo != NULL) { 1793 /* formatting */ 1794 FDC_WRFIFO(fdc, NE7CMD_FORMAT); 1795 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1796 FDC_WRFIFO(fdc, finfo->fd_formb_secshift); 1797 FDC_WRFIFO(fdc, finfo->fd_formb_nsecs); 1798 FDC_WRFIFO(fdc, finfo->fd_formb_gaplen); 1799 FDC_WRFIFO(fdc, finfo->fd_formb_fillbyte); 1800 } else { 1801 if (read) 1802 FDC_WRFIFO(fdc, NE7CMD_READ); 1803 else 1804 FDC_WRFIFO(fdc, NE7CMD_WRITE); 1805 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1806 FDC_WRFIFO(fdc, fd->sc_cylin); /*track*/ 1807 FDC_WRFIFO(fdc, head); 1808 FDC_WRFIFO(fdc, sec + 1); /*sector+1*/ 1809 FDC_WRFIFO(fdc, type->secsize); /*sector size*/ 1810 FDC_WRFIFO(fdc, type->sectrac); /*secs/track*/ 1811 FDC_WRFIFO(fdc, type->gap1); /*gap1 size*/ 1812 FDC_WRFIFO(fdc, type->datalen); /*data length*/ 1813 } 1814 1815 return 1; /* will return later */ 1816 1817 case SEEKWAIT: 1818 callout_stop(&fdc->sc_timo_ch); 1819 fdc->sc_state = SEEKCOMPLETE; 1820 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1821 /* allow 1/50 second for heads to settle */ 1822 callout_reset(&fdc->sc_intr_ch, hz / 50, 1823 fdcpseudointr, fdc); 1824 return 1; /* will return later */ 1825 } 1826 /*FALLTHROUGH*/ 1827 case SEEKCOMPLETE: 1828 /* no data on seek */ 1829 disk_unbusy(&fd->sc_dk, 0, 0); 1830 1831 /* Make sure seek really happened. */ 1832 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1833 cyl != bp->b_cylinder * fd->sc_type->step) { 1834 #ifdef FD_DEBUG 1835 if (fdc_debug) 1836 fdcstatus(fdc, "seek failed"); 1837 #endif 1838 fdcretry(fdc); 1839 goto loop; 1840 } 1841 fd->sc_cylin = bp->b_cylinder; 1842 goto doio; 1843 1844 case IOTIMEDOUT: 1845 /* 1846 * Try to abort the I/O operation without resetting 1847 * the chip first. Poke TC and arrange to pick up 1848 * the timed out I/O command's status. 1849 */ 1850 fdc->sc_itask = FDC_ITASK_RESULT; 1851 fdc->sc_state = IOCLEANUPWAIT; 1852 fdc->sc_nstat = 0; 1853 /* 1/10 second should be enough */ 1854 callout_reset(&fdc->sc_timo_ch, hz / 10, fdctimeout, fdc); 1855 FTC_FLIP; 1856 return 1; 1857 1858 case IOCLEANUPTIMEDOUT: 1859 case SEEKTIMEDOUT: 1860 case RECALTIMEDOUT: 1861 case RESETTIMEDOUT: 1862 case DSKCHGTIMEDOUT: 1863 fdcstatus(fdc, "timeout"); 1864 1865 /* All other timeouts always roll through to a chip reset */ 1866 fdcretry(fdc); 1867 1868 /* Force reset, no matter what fdcretry() says */ 1869 fdc->sc_state = DORESET; 1870 goto loop; 1871 1872 case IOCLEANUPWAIT: /* IO FAILED, cleanup succeeded */ 1873 callout_stop(&fdc->sc_timo_ch); 1874 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1875 (bp->b_flags & B_READ)); 1876 fdcretry(fdc); 1877 goto loop; 1878 1879 case IOCOMPLETE: /* IO DONE, post-analyze */ 1880 callout_stop(&fdc->sc_timo_ch); 1881 1882 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1883 (bp->b_flags & B_READ)); 1884 1885 if (fdc->sc_nstat != 7 || st1 != 0 || 1886 ((st0 & 0xf8) != 0 && 1887 ((st0 & 0xf8) != 0x20 || (fdc->sc_cfg & CFG_EIS) == 0))) { 1888 #ifdef FD_DEBUG 1889 if (fdc_debug) { 1890 fdcstatus(fdc, bp->b_flags & B_READ ? 1891 "read failed" : "write failed"); 1892 printf("blkno %lld nblks %d nstat %d tc %d\n", 1893 (long long)fd->sc_blkno, fd->sc_nblks, 1894 fdc->sc_nstat, fdc->sc_tc); 1895 } 1896 #endif 1897 if (fdc->sc_nstat == 7 && 1898 (st1 & ST1_OVERRUN) == ST1_OVERRUN) { 1899 1900 /* 1901 * Silently retry overruns if no other 1902 * error bit is set. Adjust threshold. 1903 */ 1904 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1905 if (thr < 15) { 1906 thr++; 1907 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1908 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1909 #ifdef FD_DEBUG 1910 if (fdc_debug) 1911 printf("fdc: %d -> threshold\n", 1912 thr); 1913 #endif 1914 fdconf(fdc); 1915 fdc->sc_overruns = 0; 1916 } 1917 if (++fdc->sc_overruns < 3) { 1918 fdc->sc_state = DOIO; 1919 goto loop; 1920 } 1921 } 1922 fdcretry(fdc); 1923 goto loop; 1924 } 1925 if (fdc->sc_errors) { 1926 diskerr(bp, "fd", "soft error", LOG_PRINTF, 1927 fd->sc_skip / FD_BSIZE(fd), 1928 (struct disklabel *)NULL); 1929 printf("\n"); 1930 fdc->sc_errors = 0; 1931 } else { 1932 if (--fdc->sc_overruns < -20) { 1933 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1934 if (thr > 0) { 1935 thr--; 1936 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1937 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1938 #ifdef FD_DEBUG 1939 if (fdc_debug) 1940 printf("fdc: %d -> threshold\n", 1941 thr); 1942 #endif 1943 fdconf(fdc); 1944 } 1945 fdc->sc_overruns = 0; 1946 } 1947 } 1948 fd->sc_blkno += fd->sc_nblks; 1949 fd->sc_skip += fd->sc_nbytes; 1950 fd->sc_bcount -= fd->sc_nbytes; 1951 if (finfo == NULL && fd->sc_bcount > 0) { 1952 bp->b_cylinder = fd->sc_blkno / fd->sc_type->seccyl; 1953 goto doseek; 1954 } 1955 fdfinish(fd, bp); 1956 goto loop; 1957 1958 case DORESET: 1959 /* try a reset, keep motor on */ 1960 fd_set_motor(fdc); 1961 delay(100); 1962 fdc->sc_nstat = 0; 1963 fdc->sc_itask = FDC_ITASK_SENSEI; 1964 fdc->sc_state = RESETCOMPLETE; 1965 callout_reset(&fdc->sc_timo_ch, hz / 2, fdctimeout, fdc); 1966 fdc_reset(fdc); 1967 return 1; /* will return later */ 1968 1969 case RESETCOMPLETE: 1970 callout_stop(&fdc->sc_timo_ch); 1971 fdconf(fdc); 1972 1973 /* FALLTHROUGH */ 1974 case DORECAL: 1975 fdc->sc_state = RECALWAIT; 1976 fdc->sc_itask = FDC_ITASK_SENSEI; 1977 fdc->sc_nstat = 0; 1978 callout_reset(&fdc->sc_timo_ch, 5 * hz, fdctimeout, fdc); 1979 /* recalibrate function */ 1980 FDC_WRFIFO(fdc, NE7CMD_RECAL); 1981 FDC_WRFIFO(fdc, fd->sc_drive); 1982 return 1; /* will return later */ 1983 1984 case RECALWAIT: 1985 callout_stop(&fdc->sc_timo_ch); 1986 fdc->sc_state = RECALCOMPLETE; 1987 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1988 /* allow 1/30 second for heads to settle */ 1989 callout_reset(&fdc->sc_intr_ch, hz / 30, 1990 fdcpseudointr, fdc); 1991 return 1; /* will return later */ 1992 } 1993 1994 case RECALCOMPLETE: 1995 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || cyl != 0) { 1996 #ifdef FD_DEBUG 1997 if (fdc_debug) 1998 fdcstatus(fdc, "recalibrate failed"); 1999 #endif 2000 fdcretry(fdc); 2001 goto loop; 2002 } 2003 fd->sc_cylin = 0; 2004 goto doseek; 2005 2006 case MOTORWAIT: 2007 if (fd->sc_flags & FD_MOTOR_WAIT) 2008 return 1; /* time's not up yet */ 2009 goto doseek; 2010 2011 default: 2012 fdcstatus(fdc, "stray interrupt"); 2013 return 1; 2014 } 2015 #ifdef DIAGNOSTIC 2016 panic("fdcintr: impossible"); 2017 #endif 2018 2019 xxx: 2020 /* 2021 * We get here if the chip locks up in FDC_WRFIFO() 2022 * Cancel any operation and schedule a reset 2023 */ 2024 callout_stop(&fdc->sc_timo_ch); 2025 fdcretry(fdc); 2026 fdc->sc_state = DORESET; 2027 goto loop; 2028 2029 #undef st0 2030 #undef st1 2031 #undef cyl 2032 } 2033 2034 void 2035 fdcretry(struct fdc_softc *fdc) 2036 { 2037 struct fd_softc *fd; 2038 struct buf *bp; 2039 int error = EIO; 2040 2041 fd = fdc->sc_drives.tqh_first; 2042 bp = BUFQ_PEEK(fd->sc_q); 2043 2044 fdc->sc_overruns = 0; 2045 if (fd->sc_opts & FDOPT_NORETRY) 2046 goto fail; 2047 2048 switch (fdc->sc_errors) { 2049 case 0: 2050 if (fdc->sc_nstat == 7 && 2051 (fdc->sc_status[0] & 0xd8) == 0x40 && 2052 (fdc->sc_status[1] & 0x2) == 0x2) { 2053 printf("%s: read-only medium\n", fd->sc_dv.dv_xname); 2054 error = EROFS; 2055 goto failsilent; 2056 } 2057 /* try again */ 2058 fdc->sc_state = 2059 (fdc->sc_flags & FDC_EIS) ? DOIO : DOSEEK; 2060 break; 2061 2062 case 1: case 2: case 3: 2063 /* didn't work; try recalibrating */ 2064 fdc->sc_state = DORECAL; 2065 break; 2066 2067 case 4: 2068 if (fdc->sc_nstat == 7 && 2069 fdc->sc_status[0] == 0 && 2070 fdc->sc_status[1] == 0 && 2071 fdc->sc_status[2] == 0) { 2072 /* 2073 * We've retried a few times and we've got 2074 * valid status and all three status bytes 2075 * are zero. Assume this condition is the 2076 * result of no disk loaded into the drive. 2077 */ 2078 printf("%s: no medium?\n", fd->sc_dv.dv_xname); 2079 error = ENODEV; 2080 goto failsilent; 2081 } 2082 2083 /* still no go; reset the bastard */ 2084 fdc->sc_state = DORESET; 2085 break; 2086 2087 default: 2088 fail: 2089 if ((fd->sc_opts & FDOPT_SILENT) == 0) { 2090 diskerr(bp, "fd", "hard error", LOG_PRINTF, 2091 fd->sc_skip / FD_BSIZE(fd), 2092 (struct disklabel *)NULL); 2093 printf("\n"); 2094 fdcstatus(fdc, "controller status"); 2095 } 2096 2097 failsilent: 2098 bp->b_flags |= B_ERROR; 2099 bp->b_error = error; 2100 fdfinish(fd, bp); 2101 } 2102 fdc->sc_errors++; 2103 } 2104 2105 int 2106 fdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct lwp *l) 2107 { 2108 struct fd_softc *fd; 2109 struct fdc_softc *fdc; 2110 struct fdformat_parms *form_parms; 2111 struct fdformat_cmd *form_cmd; 2112 struct ne7_fd_formb *fd_formb; 2113 int il[FD_MAX_NSEC + 1]; 2114 int unit; 2115 int i, j; 2116 int error; 2117 2118 unit = FDUNIT(dev); 2119 if (unit >= fd_cd.cd_ndevs) 2120 return ENXIO; 2121 2122 fd = fd_cd.cd_devs[FDUNIT(dev)]; 2123 fdc = (struct fdc_softc *)device_parent(&fd->sc_dv); 2124 2125 switch (cmd) { 2126 case DIOCGDINFO: 2127 *(struct disklabel *)addr = *(fd->sc_dk.dk_label); 2128 return 0; 2129 2130 case DIOCWLABEL: 2131 if ((flag & FWRITE) == 0) 2132 return EBADF; 2133 /* XXX do something */ 2134 return 0; 2135 2136 case DIOCWDINFO: 2137 if ((flag & FWRITE) == 0) 2138 return EBADF; 2139 2140 error = setdisklabel(fd->sc_dk.dk_label, 2141 (struct disklabel *)addr, 0, 2142 fd->sc_dk.dk_cpulabel); 2143 if (error) 2144 return error; 2145 2146 error = writedisklabel(dev, fdstrategy, 2147 fd->sc_dk.dk_label, 2148 fd->sc_dk.dk_cpulabel); 2149 return error; 2150 2151 case DIOCLOCK: 2152 /* 2153 * Nothing to do here, really. 2154 */ 2155 return 0; 2156 2157 case DIOCEJECT: 2158 if (*(int *)addr == 0) { 2159 int part = DISKPART(dev); 2160 /* 2161 * Don't force eject: check that we are the only 2162 * partition open. If so, unlock it. 2163 */ 2164 if ((fd->sc_dk.dk_openmask & ~(1 << part)) != 0 || 2165 fd->sc_dk.dk_bopenmask + fd->sc_dk.dk_copenmask != 2166 fd->sc_dk.dk_openmask) { 2167 return EBUSY; 2168 } 2169 } 2170 /* FALLTHROUGH */ 2171 case ODIOCEJECT: 2172 if (fdc->sc_flags & FDC_NOEJECT) 2173 return EINVAL; 2174 fd_do_eject(fd); 2175 return 0; 2176 2177 case FDIOCGETFORMAT: 2178 form_parms = (struct fdformat_parms *)addr; 2179 form_parms->fdformat_version = FDFORMAT_VERSION; 2180 form_parms->nbps = 128 * (1 << fd->sc_type->secsize); 2181 form_parms->ncyl = fd->sc_type->cylinders; 2182 form_parms->nspt = fd->sc_type->sectrac; 2183 form_parms->ntrk = fd->sc_type->heads; 2184 form_parms->stepspercyl = fd->sc_type->step; 2185 form_parms->gaplen = fd->sc_type->gap2; 2186 form_parms->fillbyte = fd->sc_type->fillbyte; 2187 form_parms->interleave = fd->sc_type->interleave; 2188 switch (fd->sc_type->rate) { 2189 case FDC_500KBPS: 2190 form_parms->xfer_rate = 500 * 1024; 2191 break; 2192 case FDC_300KBPS: 2193 form_parms->xfer_rate = 300 * 1024; 2194 break; 2195 case FDC_250KBPS: 2196 form_parms->xfer_rate = 250 * 1024; 2197 break; 2198 default: 2199 return EINVAL; 2200 } 2201 return 0; 2202 2203 case FDIOCSETFORMAT: 2204 if ((flag & FWRITE) == 0) 2205 return EBADF; /* must be opened for writing */ 2206 2207 form_parms = (struct fdformat_parms *)addr; 2208 if (form_parms->fdformat_version != FDFORMAT_VERSION) 2209 return EINVAL;/* wrong version of formatting prog */ 2210 2211 i = form_parms->nbps >> 7; 2212 if ((form_parms->nbps & 0x7f) || ffs(i) == 0 || 2213 i & ~(1 << (ffs(i)-1))) 2214 /* not a power-of-two multiple of 128 */ 2215 return EINVAL; 2216 2217 switch (form_parms->xfer_rate) { 2218 case 500 * 1024: 2219 fd->sc_type->rate = FDC_500KBPS; 2220 break; 2221 case 300 * 1024: 2222 fd->sc_type->rate = FDC_300KBPS; 2223 break; 2224 case 250 * 1024: 2225 fd->sc_type->rate = FDC_250KBPS; 2226 break; 2227 default: 2228 return EINVAL; 2229 } 2230 2231 if (form_parms->nspt > FD_MAX_NSEC || 2232 form_parms->fillbyte > 0xff || 2233 form_parms->interleave > 0xff) 2234 return EINVAL; 2235 fd->sc_type->sectrac = form_parms->nspt; 2236 if (form_parms->ntrk != 2 && form_parms->ntrk != 1) 2237 return EINVAL; 2238 fd->sc_type->heads = form_parms->ntrk; 2239 fd->sc_type->seccyl = form_parms->nspt * form_parms->ntrk; 2240 fd->sc_type->secsize = ffs(i)-1; 2241 fd->sc_type->gap2 = form_parms->gaplen; 2242 fd->sc_type->cylinders = form_parms->ncyl; 2243 fd->sc_type->size = fd->sc_type->seccyl * form_parms->ncyl * 2244 form_parms->nbps / DEV_BSIZE; 2245 fd->sc_type->step = form_parms->stepspercyl; 2246 fd->sc_type->fillbyte = form_parms->fillbyte; 2247 fd->sc_type->interleave = form_parms->interleave; 2248 return 0; 2249 2250 case FDIOCFORMAT_TRACK: 2251 if((flag & FWRITE) == 0) 2252 /* must be opened for writing */ 2253 return EBADF; 2254 form_cmd = (struct fdformat_cmd *)addr; 2255 if (form_cmd->formatcmd_version != FDFORMAT_VERSION) 2256 /* wrong version of formatting prog */ 2257 return EINVAL; 2258 2259 if (form_cmd->head >= fd->sc_type->heads || 2260 form_cmd->cylinder >= fd->sc_type->cylinders) { 2261 return EINVAL; 2262 } 2263 2264 fd_formb = malloc(sizeof(struct ne7_fd_formb), 2265 M_TEMP, M_NOWAIT); 2266 if (fd_formb == 0) 2267 return ENOMEM; 2268 2269 fd_formb->head = form_cmd->head; 2270 fd_formb->cyl = form_cmd->cylinder; 2271 fd_formb->transfer_rate = fd->sc_type->rate; 2272 fd_formb->fd_formb_secshift = fd->sc_type->secsize; 2273 fd_formb->fd_formb_nsecs = fd->sc_type->sectrac; 2274 fd_formb->fd_formb_gaplen = fd->sc_type->gap2; 2275 fd_formb->fd_formb_fillbyte = fd->sc_type->fillbyte; 2276 2277 bzero(il, sizeof il); 2278 for (j = 0, i = 1; i <= fd_formb->fd_formb_nsecs; i++) { 2279 while (il[(j % fd_formb->fd_formb_nsecs) + 1]) 2280 j++; 2281 il[(j % fd_formb->fd_formb_nsecs) + 1] = i; 2282 j += fd->sc_type->interleave; 2283 } 2284 for (i = 0; i < fd_formb->fd_formb_nsecs; i++) { 2285 fd_formb->fd_formb_cylno(i) = form_cmd->cylinder; 2286 fd_formb->fd_formb_headno(i) = form_cmd->head; 2287 fd_formb->fd_formb_secno(i) = il[i + 1]; 2288 fd_formb->fd_formb_secsize(i) = fd->sc_type->secsize; 2289 } 2290 2291 error = fdformat(dev, fd_formb, l->l_proc); 2292 free(fd_formb, M_TEMP); 2293 return error; 2294 2295 case FDIOCGETOPTS: /* get drive options */ 2296 *(int *)addr = fd->sc_opts; 2297 return 0; 2298 2299 case FDIOCSETOPTS: /* set drive options */ 2300 fd->sc_opts = *(int *)addr; 2301 return 0; 2302 2303 #ifdef FD_DEBUG 2304 case _IO('f', 100): 2305 fdc_wrfifo(fdc, NE7CMD_DUMPREG); 2306 fdcresult(fdc); 2307 printf("fdc: dumpreg(%d regs): <", fdc->sc_nstat); 2308 for (i = 0; i < fdc->sc_nstat; i++) 2309 printf(" 0x%x", fdc->sc_status[i]); 2310 printf(">\n"); 2311 return 0; 2312 2313 case _IOW('f', 101, int): 2314 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 2315 fdc->sc_cfg |= (*(int *)addr & CFG_THRHLD_MASK); 2316 fdconf(fdc); 2317 return 0; 2318 2319 case _IO('f', 102): 2320 fdc_wrfifo(fdc, NE7CMD_SENSEI); 2321 fdcresult(fdc); 2322 printf("fdc: sensei(%d regs): <", fdc->sc_nstat); 2323 for (i=0; i< fdc->sc_nstat; i++) 2324 printf(" 0x%x", fdc->sc_status[i]); 2325 printf(">\n"); 2326 return 0; 2327 #endif 2328 default: 2329 return ENOTTY; 2330 } 2331 2332 #ifdef DIAGNOSTIC 2333 panic("fdioctl: impossible"); 2334 #endif 2335 } 2336 2337 int 2338 fdformat(dev_t dev, struct ne7_fd_formb *finfo, struct proc *p) 2339 { 2340 int rv = 0; 2341 struct fd_softc *fd = fd_cd.cd_devs[FDUNIT(dev)]; 2342 struct fd_type *type = fd->sc_type; 2343 struct buf *bp; 2344 2345 /* set up a buffer header for fdstrategy() */ 2346 bp = getiobuf_nowait(); 2347 if (bp == NULL) 2348 return ENOBUFS; 2349 2350 bp->b_vp = NULL; 2351 bp->b_flags = B_BUSY | B_PHYS | B_FORMAT; 2352 bp->b_proc = p; 2353 bp->b_dev = dev; 2354 2355 /* 2356 * Calculate a fake blkno, so fdstrategy() would initiate a 2357 * seek to the requested cylinder. 2358 */ 2359 bp->b_blkno = ((finfo->cyl * (type->sectrac * type->heads) 2360 + finfo->head * type->sectrac) * FD_BSIZE(fd)) 2361 / DEV_BSIZE; 2362 2363 bp->b_bcount = sizeof(struct fd_idfield_data) * finfo->fd_formb_nsecs; 2364 bp->b_data = (caddr_t)finfo; 2365 2366 #ifdef FD_DEBUG 2367 if (fdc_debug) { 2368 int i; 2369 2370 printf("fdformat: blkno 0x%llx count %d\n", 2371 (unsigned long long)bp->b_blkno, bp->b_bcount); 2372 2373 printf("\tcyl:\t%d\n", finfo->cyl); 2374 printf("\thead:\t%d\n", finfo->head); 2375 printf("\tnsecs:\t%d\n", finfo->fd_formb_nsecs); 2376 printf("\tsshft:\t%d\n", finfo->fd_formb_secshift); 2377 printf("\tgaplen:\t%d\n", finfo->fd_formb_gaplen); 2378 printf("\ttrack data:"); 2379 for (i = 0; i < finfo->fd_formb_nsecs; i++) { 2380 printf(" [c%d h%d s%d]", 2381 finfo->fd_formb_cylno(i), 2382 finfo->fd_formb_headno(i), 2383 finfo->fd_formb_secno(i) ); 2384 if (finfo->fd_formb_secsize(i) != 2) 2385 printf("<sz:%d>", finfo->fd_formb_secsize(i)); 2386 } 2387 printf("\n"); 2388 } 2389 #endif 2390 2391 /* now do the format */ 2392 fdstrategy(bp); 2393 2394 /* ...and wait for it to complete */ 2395 rv = biowait(bp); 2396 putiobuf(bp); 2397 return rv; 2398 } 2399 2400 void 2401 fdgetdisklabel(dev_t dev) 2402 { 2403 int unit = FDUNIT(dev), i; 2404 struct fd_softc *fd = fd_cd.cd_devs[unit]; 2405 struct disklabel *lp = fd->sc_dk.dk_label; 2406 struct cpu_disklabel *clp = fd->sc_dk.dk_cpulabel; 2407 2408 bzero(lp, sizeof(struct disklabel)); 2409 bzero(lp, sizeof(struct cpu_disklabel)); 2410 2411 lp->d_type = DTYPE_FLOPPY; 2412 lp->d_secsize = FD_BSIZE(fd); 2413 lp->d_secpercyl = fd->sc_type->seccyl; 2414 lp->d_nsectors = fd->sc_type->sectrac; 2415 lp->d_ncylinders = fd->sc_type->cylinders; 2416 lp->d_ntracks = fd->sc_type->heads; /* Go figure... */ 2417 lp->d_secperunit = lp->d_secpercyl * lp->d_ncylinders; 2418 lp->d_rpm = 300; /* XXX like it matters... */ 2419 2420 strncpy(lp->d_typename, "floppy disk", sizeof(lp->d_typename)); 2421 strncpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); 2422 lp->d_interleave = 1; 2423 lp->d_flags = D_REMOVABLE; 2424 2425 lp->d_partitions[RAW_PART].p_offset = 0; 2426 lp->d_partitions[RAW_PART].p_size = lp->d_secpercyl * lp->d_ncylinders; 2427 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 2428 lp->d_npartitions = RAW_PART + 1; 2429 2430 lp->d_magic = DISKMAGIC; 2431 lp->d_magic2 = DISKMAGIC; 2432 lp->d_checksum = dkcksum(lp); 2433 2434 /* 2435 * Call the generic disklabel extraction routine. If there's 2436 * not a label there, fake it. 2437 */ 2438 if (readdisklabel(dev, fdstrategy, lp, clp) != NULL) { 2439 strncpy(lp->d_packname, "default label", 2440 sizeof(lp->d_packname)); 2441 /* 2442 * Reset the partition info; it might have gotten 2443 * trashed in readdisklabel(). 2444 * 2445 * XXX Why do we have to do this? readdisklabel() 2446 * should be safe... 2447 */ 2448 for (i = 0; i < MAXPARTITIONS; ++i) { 2449 lp->d_partitions[i].p_offset = 0; 2450 if (i == RAW_PART) { 2451 lp->d_partitions[i].p_size = 2452 lp->d_secpercyl * lp->d_ncylinders; 2453 lp->d_partitions[i].p_fstype = FS_BSDFFS; 2454 } else { 2455 lp->d_partitions[i].p_size = 0; 2456 lp->d_partitions[i].p_fstype = FS_UNUSED; 2457 } 2458 } 2459 lp->d_npartitions = RAW_PART + 1; 2460 } 2461 } 2462 2463 void 2464 fd_do_eject(struct fd_softc *fd) 2465 { 2466 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 2467 2468 #ifdef SUN4 2469 if (CPU_ISSUN4C) { 2470 auxregbisc(AUXIO4C_FDS, AUXIO4C_FEJ); 2471 delay(10); 2472 auxregbisc(AUXIO4C_FEJ, AUXIO4C_FDS); 2473 return; 2474 } 2475 if (CPU_ISSUN4M && (fdc->sc_flags & FDC_82077) != 0) { 2476 #endif 2477 bus_space_tag_t t = fdc->sc_bustag; 2478 bus_space_handle_t h = fdc->sc_handle; 2479 uint8_t dor = FDO_FRST | FDO_FDMAEN | FDO_MOEN(0); 2480 2481 bus_space_write_1(t, h, fdc->sc_reg_dor, dor | FDO_EJ); 2482 delay(10); 2483 bus_space_write_1(t, h, fdc->sc_reg_dor, FDO_FRST | FDO_DS); 2484 return; 2485 #ifdef SUN4 2486 } 2487 #endif 2488 } 2489 2490 /* ARGSUSED */ 2491 void 2492 fd_mountroot_hook(struct device *dev) 2493 { 2494 int c; 2495 2496 fd_do_eject((struct fd_softc *)dev); 2497 printf("Insert filesystem floppy and press return."); 2498 for (;;) { 2499 c = cngetc(); 2500 if ((c == '\r') || (c == '\n')) { 2501 printf("\n"); 2502 break; 2503 } 2504 } 2505 } 2506 2507 #ifdef MEMORY_DISK_HOOKS 2508 2509 #define FDMICROROOTSIZE ((2*18*80) << DEV_BSHIFT) 2510 2511 int 2512 fd_read_md_image(size_t *sizep, caddr_t *addrp) 2513 { 2514 struct buf buf, *bp = &buf; 2515 dev_t dev; 2516 off_t offset; 2517 caddr_t addr; 2518 2519 dev = makedev(54,0); /* XXX */ 2520 2521 MALLOC(addr, caddr_t, FDMICROROOTSIZE, M_DEVBUF, M_WAITOK); 2522 *addrp = addr; 2523 2524 if (fdopen(dev, 0, S_IFCHR, NULL)) 2525 panic("fd: mountroot: fdopen"); 2526 2527 offset = 0; 2528 2529 for (;;) { 2530 bp->b_dev = dev; 2531 bp->b_error = 0; 2532 bp->b_resid = 0; 2533 bp->b_proc = NULL; 2534 bp->b_flags = B_BUSY | B_PHYS | B_RAW | B_READ; 2535 bp->b_blkno = btodb(offset); 2536 bp->b_bcount = DEV_BSIZE; 2537 bp->b_data = addr; 2538 fdstrategy(bp); 2539 while ((bp->b_flags & B_DONE) == 0) { 2540 tsleep((caddr_t)bp, PRIBIO + 1, "physio", 0); 2541 } 2542 if (bp->b_error) 2543 panic("fd: mountroot: fdread error %d", bp->b_error); 2544 2545 if (bp->b_resid != 0) 2546 break; 2547 2548 addr += DEV_BSIZE; 2549 offset += DEV_BSIZE; 2550 if (offset + DEV_BSIZE > FDMICROROOTSIZE) 2551 break; 2552 } 2553 (void)fdclose(dev, 0, S_IFCHR, NULL); 2554 *sizep = offset; 2555 fd_do_eject(fd_cd.cd_devs[FDUNIT(dev)]); 2556 return 0; 2557 } 2558 #endif /* MEMORY_DISK_HOOKS */ 2559 2560 static void 2561 fd_set_properties(struct fd_softc *fd) 2562 { 2563 prop_dictionary_t disk_info, odisk_info, geom; 2564 struct fd_type *fdt; 2565 int secsize; 2566 2567 fdt = fd->sc_deftype; 2568 2569 disk_info = prop_dictionary_create(); 2570 2571 geom = prop_dictionary_create(); 2572 2573 prop_dictionary_set_uint64(geom, "sectors-per-unit", 2574 fdt->size); 2575 2576 switch (fdt->secsize) { 2577 case 2: 2578 secsize = 512; 2579 break; 2580 case 3: 2581 secsize = 1024; 2582 break; 2583 default: 2584 secsize = 0; 2585 } 2586 2587 prop_dictionary_set_uint32(geom, "sector-size", 2588 secsize); 2589 2590 prop_dictionary_set_uint16(geom, "sectors-per-track", 2591 fdt->sectrac); 2592 2593 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 2594 fdt->heads); 2595 2596 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 2597 fdt->cylinders); 2598 2599 prop_dictionary_set(disk_info, "geometry", geom); 2600 prop_object_release(geom); 2601 2602 prop_dictionary_set(device_properties(&fd->sc_dv), 2603 "disk-info", disk_info); 2604 2605 /* 2606 * Don't release disk_info here; we keep a reference to it. 2607 * disk_detach() will release it when we go away. 2608 */ 2609 2610 odisk_info = fd->sc_dk.dk_info; 2611 fd->sc_dk.dk_info = disk_info; 2612 if (odisk_info) 2613 prop_object_release(odisk_info); 2614 } 2615
Indexes created Mon Sep 29 21:09:56 GMT 2025