fdc.c revision 1.31
1 /* $NetBSD: fdc.c,v 1.31 2009/05/15 20:52:22 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 * 19 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 20 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 21 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 23 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 24 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 25 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 26 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 27 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 28 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 29 * POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32 /*- 33 * Copyright (c) 1990 The Regents of the University of California. 34 * All rights reserved. 35 * 36 * This code is derived from software contributed to Berkeley by 37 * Don Ahn. 38 * 39 * Redistribution and use in source and binary forms, with or without 40 * modification, are permitted provided that the following conditions 41 * are met: 42 * 1. Redistributions of source code must retain the above copyright 43 * notice, this list of conditions and the following disclaimer. 44 * 2. Redistributions in binary form must reproduce the above copyright 45 * notice, this list of conditions and the following disclaimer in the 46 * documentation and/or other materials provided with the distribution. 47 * 3. Neither the name of the University nor the names of its contributors 48 * may be used to endorse or promote products derived from this software 49 * without specific prior written permission. 50 * 51 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 52 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 53 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 54 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 55 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 56 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 57 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 58 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 59 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 60 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 61 * SUCH DAMAGE. 62 * 63 * @(#)fd.c 7.4 (Berkeley) 5/25/91 64 */ 65 66 /*- 67 * Copyright (c) 1993, 1994, 1995 Charles M. Hannum. 68 * 69 * This code is derived from software contributed to Berkeley by 70 * Don Ahn. 71 * 72 * Redistribution and use in source and binary forms, with or without 73 * modification, are permitted provided that the following conditions 74 * are met: 75 * 1. Redistributions of source code must retain the above copyright 76 * notice, this list of conditions and the following disclaimer. 77 * 2. Redistributions in binary form must reproduce the above copyright 78 * notice, this list of conditions and the following disclaimer in the 79 * documentation and/or other materials provided with the distribution. 80 * 3. All advertising materials mentioning features or use of this software 81 * must display the following acknowledgement: 82 * This product includes software developed by the University of 83 * California, Berkeley and its contributors. 84 * 4. Neither the name of the University nor the names of its contributors 85 * may be used to endorse or promote products derived from this software 86 * without specific prior written permission. 87 * 88 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 89 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 90 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 91 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 92 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 93 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 94 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 95 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 96 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 97 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 98 * SUCH DAMAGE. 99 * 100 * @(#)fd.c 7.4 (Berkeley) 5/25/91 101 */ 102 103 #include <sys/cdefs.h> 104 __KERNEL_RCSID(0, "$NetBSD: fdc.c,v 1.31 2009/05/15 20:52:22 jnemeth Exp $"); 105 106 #include "opt_ddb.h" 107 #include "opt_md.h" 108 109 #include <sys/param.h> 110 #include <sys/types.h> 111 #include <sys/systm.h> 112 #include <sys/callout.h> 113 #include <sys/kernel.h> 114 #include <sys/file.h> 115 #include <sys/ioctl.h> 116 #include <sys/device.h> 117 #include <sys/disklabel.h> 118 #include <sys/disk.h> 119 #include <sys/fdio.h> 120 #include <sys/buf.h> 121 #include <sys/bufq.h> 122 #include <sys/malloc.h> 123 #include <sys/proc.h> 124 #include <sys/uio.h> 125 #include <sys/stat.h> 126 #include <sys/syslog.h> 127 #include <sys/queue.h> 128 #include <sys/conf.h> 129 #include <sys/intr.h> 130 131 #include <dev/cons.h> 132 133 #include <uvm/uvm_extern.h> 134 135 #include <machine/autoconf.h> 136 137 #ifdef SUN4 138 #include <sparc/sparc/auxreg.h> 139 #include <sparc/dev/fdreg.h> 140 #include <sparc/dev/fdvar.h> 141 #elif SUN4U 142 #include <dev/ebus/ebusreg.h> 143 #include <dev/ebus/ebusvar.h> 144 /* #include <sparc/sparc/auxreg.h> */ 145 #include <sparc64/dev/auxioreg.h> 146 #include <sparc64/dev/auxiovar.h> 147 #include <sparc64/dev/fdcreg.h> 148 #include <sparc64/dev/fdcvar.h> 149 #endif 150 151 #include <prop/proplib.h> 152 153 #define FDUNIT(dev) (minor(dev) / 8) 154 #define FDTYPE(dev) (minor(dev) % 8) 155 156 /* (mis)use device use flag to identify format operation */ 157 #define B_FORMAT B_DEVPRIVATE 158 159 #define FD_DEBUG 160 #ifdef FD_DEBUG 161 int fdc_debug = 0; 162 #endif 163 164 enum fdc_state { 165 DEVIDLE = 0, 166 MOTORWAIT, /* 1 */ 167 DOSEEK, /* 2 */ 168 SEEKWAIT, /* 3 */ 169 SEEKTIMEDOUT, /* 4 */ 170 SEEKCOMPLETE, /* 5 */ 171 DOIO, /* 6 */ 172 IOCOMPLETE, /* 7 */ 173 IOTIMEDOUT, /* 8 */ 174 IOCLEANUPWAIT, /* 9 */ 175 IOCLEANUPTIMEDOUT,/*10 */ 176 DORESET, /* 11 */ 177 RESETCOMPLETE, /* 12 */ 178 RESETTIMEDOUT, /* 13 */ 179 DORECAL, /* 14 */ 180 RECALWAIT, /* 15 */ 181 RECALTIMEDOUT, /* 16 */ 182 RECALCOMPLETE, /* 17 */ 183 DODSKCHG, /* 18 */ 184 DSKCHGWAIT, /* 19 */ 185 DSKCHGTIMEDOUT, /* 20 */ 186 }; 187 188 /* software state, per controller */ 189 struct fdc_softc { 190 struct device sc_dev; /* boilerplate */ 191 bus_space_tag_t sc_bustag; 192 193 struct callout sc_timo_ch; /* timeout callout */ 194 struct callout sc_intr_ch; /* pseudo-intr callout */ 195 196 struct fd_softc *sc_fd[4]; /* pointers to children */ 197 TAILQ_HEAD(drivehead, fd_softc) sc_drives; 198 enum fdc_state sc_state; 199 int sc_flags; 200 #define FDC_82077 0x01 201 #define FDC_NEEDHEADSETTLE 0x02 202 #define FDC_EIS 0x04 203 #define FDC_NEEDMOTORWAIT 0x08 204 #define FDC_NOEJECT 0x10 205 #define FDC_EBUS 0x20 206 int sc_errors; /* number of retries so far */ 207 int sc_overruns; /* number of DMA overruns */ 208 int sc_cfg; /* current configuration */ 209 struct fdcio sc_io; 210 #define sc_handle sc_io.fdcio_handle 211 #define sc_reg_msr sc_io.fdcio_reg_msr 212 #define sc_reg_fifo sc_io.fdcio_reg_fifo 213 #define sc_reg_dor sc_io.fdcio_reg_dor 214 #define sc_reg_dir sc_io.fdcio_reg_dir 215 #define sc_reg_drs sc_io.fdcio_reg_msr 216 #define sc_itask sc_io.fdcio_itask 217 #define sc_istatus sc_io.fdcio_istatus 218 #define sc_data sc_io.fdcio_data 219 #define sc_tc sc_io.fdcio_tc 220 #define sc_nstat sc_io.fdcio_nstat 221 #define sc_status sc_io.fdcio_status 222 #define sc_intrcnt sc_io.fdcio_intrcnt 223 224 void *sc_sicookie; /* softint(9) cookie */ 225 }; 226 227 #ifdef SUN4 228 extern struct fdcio *fdciop; /* I/O descriptor used in fdintr.s */ 229 #endif 230 231 /* controller driver configuration */ 232 #ifdef SUN4 233 int fdcmatch_mainbus(struct device *, struct cfdata *, void*); 234 int fdcmatch_obio(struct device *, struct cfdata *, void *); 235 void fdcattach_mainbus(struct device *, struct device *, void *); 236 void fdcattach_obio(struct device *, struct device *, void *); 237 #elif SUN4U 238 int fdcmatch_sbus(struct device *, struct cfdata *, void *); 239 int fdcmatch_ebus(struct device *, struct cfdata *, void *); 240 void fdcattach_sbus(struct device *, struct device *, void *); 241 void fdcattach_ebus(struct device *, struct device *, void *); 242 #endif 243 244 int fdcattach(struct fdc_softc *, int); 245 246 #ifdef SUN4 247 CFATTACH_DECL(fdc_mainbus, sizeof(struct fdc_softc), 248 fdcmatch_mainbus, fdcattach_mainbus, NULL, NULL); 249 250 CFATTACH_DECL(fdc_obio, sizeof(struct fdc_softc), 251 fdcmatch_obio, fdcattach_obio, NULL, NULL); 252 #elif SUN4U 253 CFATTACH_DECL(fdc_sbus, sizeof(struct fdc_softc), 254 fdcmatch_sbus, fdcattach_sbus, NULL, NULL); 255 256 CFATTACH_DECL(fdc_ebus, sizeof(struct fdc_softc), 257 fdcmatch_ebus, fdcattach_ebus, NULL, NULL); 258 #endif 259 260 inline struct fd_type *fd_dev_to_type(struct fd_softc *, dev_t); 261 262 /* 263 * Floppies come in various flavors, e.g., 1.2MB vs 1.44MB; here is how 264 * we tell them apart. 265 */ 266 struct fd_type { 267 int sectrac; /* sectors per track */ 268 int heads; /* number of heads */ 269 int seccyl; /* sectors per cylinder */ 270 int secsize; /* size code for sectors */ 271 int datalen; /* data len when secsize = 0 */ 272 int steprate; /* step rate and head unload time */ 273 int gap1; /* gap len between sectors */ 274 int gap2; /* formatting gap */ 275 int cylinders; /* total num of cylinders */ 276 int size; /* size of disk in sectors */ 277 int step; /* steps per cylinder */ 278 int rate; /* transfer speed code */ 279 int fillbyte; /* format fill byte */ 280 int interleave; /* interleave factor (formatting) */ 281 const char *name; 282 }; 283 284 /* The order of entries in the following table is important -- BEWARE! */ 285 struct fd_type fd_types[] = { 286 { 18,2,36,2,0xff,0xcf,0x1b,0x6c,80,2880,1,FDC_500KBPS,0xf6,1, "1.44MB" }, /* 1.44MB diskette */ 287 { 9,2,18,2,0xff,0xdf,0x2a,0x50,80,1440,1,FDC_250KBPS,0xf6,1, "720KB" }, /* 3.5" 720kB diskette */ 288 { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,2,FDC_250KBPS,0xf6,1, "360KB/x" }, /* 360kB in 720kB drive */ 289 { 8,2,16,3,0xff,0xdf,0x35,0x74,77,1232,1,FDC_500KBPS,0xf6,1, "1.2MB/NEC" } /* 1.2 MB japanese format */ 290 }; 291 292 /* software state, per disk (with up to 4 disks per ctlr) */ 293 struct fd_softc { 294 struct device sc_dv; /* generic device info */ 295 struct disk sc_dk; /* generic disk info */ 296 297 struct fd_type *sc_deftype; /* default type descriptor */ 298 struct fd_type *sc_type; /* current type descriptor */ 299 300 struct callout sc_motoron_ch; 301 struct callout sc_motoroff_ch; 302 303 daddr_t sc_blkno; /* starting block number */ 304 int sc_bcount; /* byte count left */ 305 int sc_skip; /* bytes already transferred */ 306 int sc_nblks; /* number of blocks currently transferring */ 307 int sc_nbytes; /* number of bytes currently transferring */ 308 309 int sc_drive; /* physical unit number */ 310 int sc_flags; 311 #define FD_OPEN 0x01 /* it's open */ 312 #define FD_MOTOR 0x02 /* motor should be on */ 313 #define FD_MOTOR_WAIT 0x04 /* motor coming up */ 314 int sc_cylin; /* where we think the head is */ 315 int sc_opts; /* user-set options */ 316 317 TAILQ_ENTRY(fd_softc) sc_drivechain; 318 int sc_ops; /* I/O ops since last switch */ 319 struct bufq_state *sc_q;/* pending I/O requests */ 320 int sc_active; /* number of active I/O requests */ 321 }; 322 323 /* floppy driver configuration */ 324 int fdmatch(struct device *, struct cfdata *, void *); 325 void fdattach(struct device *, struct device *, void *); 326 bool fdshutdown(device_t, int); 327 bool fdsuspend(device_t PMF_FN_PROTO); 328 329 CFATTACH_DECL(fd, sizeof(struct fd_softc), 330 fdmatch, fdattach, NULL, NULL); 331 332 extern struct cfdriver fd_cd; 333 334 dev_type_open(fdopen); 335 dev_type_close(fdclose); 336 dev_type_read(fdread); 337 dev_type_write(fdwrite); 338 dev_type_ioctl(fdioctl); 339 dev_type_strategy(fdstrategy); 340 341 const struct bdevsw fd_bdevsw = { 342 fdopen, fdclose, fdstrategy, fdioctl, nodump, nosize, D_DISK 343 }; 344 345 const struct cdevsw fd_cdevsw = { 346 fdopen, fdclose, fdread, fdwrite, fdioctl, 347 nostop, notty, nopoll, nommap, nokqfilter, D_DISK 348 }; 349 350 void fdgetdisklabel(dev_t); 351 int fd_get_parms(struct fd_softc *); 352 void fdstrategy(struct buf *); 353 void fdstart(struct fd_softc *); 354 int fdprint(void *, const char *); 355 356 struct dkdriver fddkdriver = { fdstrategy, NULL }; 357 358 struct fd_type *fd_nvtotype(char *, int, int); 359 void fd_set_motor(struct fdc_softc *); 360 void fd_motor_off(void *); 361 void fd_motor_on(void *); 362 int fdcresult(struct fdc_softc *); 363 int fdc_wrfifo(struct fdc_softc *, uint8_t); 364 void fdcstart(struct fdc_softc *); 365 void fdcstatus(struct fdc_softc *, const char *); 366 void fdc_reset(struct fdc_softc *); 367 int fdc_diskchange(struct fdc_softc *); 368 void fdctimeout(void *); 369 void fdcpseudointr(void *); 370 int fdc_c_hwintr(void *); 371 void fdchwintr(void); 372 void fdcswintr(void *); 373 int fdcstate(struct fdc_softc *); 374 void fdcretry(struct fdc_softc *); 375 void fdfinish(struct fd_softc *, struct buf *); 376 int fdformat(dev_t, struct ne7_fd_formb *, struct proc *); 377 void fd_do_eject(struct fd_softc *); 378 void fd_mountroot_hook(struct device *); 379 static int fdconf(struct fdc_softc *); 380 static void establish_chip_type( 381 struct fdc_softc *, 382 bus_space_tag_t, 383 bus_addr_t, 384 bus_size_t, 385 bus_space_handle_t); 386 static void fd_set_properties(struct fd_softc *); 387 388 #ifdef MEMORY_DISK_HOOKS 389 int fd_read_md_image(size_t *, void **); 390 #endif 391 392 #ifdef SUN4 393 #define OBP_FDNAME (CPU_ISSUN4M ? "SUNW,fdtwo" : "fd") 394 395 int 396 fdcmatch_mainbus(struct device *parent, struct cfdata *match, void *aux) 397 { 398 struct mainbus_attach_args *ma = aux; 399 400 /* 401 * Floppy controller is on mainbus on sun4c. 402 */ 403 if (!CPU_ISSUN4C) 404 return 0; 405 406 /* sun4c PROMs call the controller "fd" */ 407 if (strcmp("fd", ma->ma_name) != 0) 408 return 0; 409 410 return bus_space_probe(ma->ma_bustag, 411 ma->ma_paddr, 412 1, /* probe size */ 413 0, /* offset */ 414 0, /* flags */ 415 NULL, NULL); 416 } 417 418 int 419 fdcmatch_obio(struct device *parent, struct cfdata *match, void *aux) 420 { 421 union obio_attach_args *uoba = aux; 422 struct sbus_attach_args *sa; 423 424 /* 425 * Floppy controller is on obio on sun4m. 426 */ 427 if (uoba->uoba_isobio4 != 0) 428 return 0; 429 430 sa = &uoba->uoba_sbus; 431 432 /* sun4m PROMs call the controller "SUNW,fdtwo" */ 433 if (strcmp("SUNW,fdtwo", sa->sa_name) != 0) 434 return 0; 435 436 return bus_space_probe(sa->sa_bustag, 437 sbus_bus_addr(sa->sa_bustag, 438 sa->sa_slot, sa->sa_offset), 439 1, /* probe size */ 440 0, /* offset */ 441 0, /* flags */ 442 NULL, NULL); 443 } 444 445 #elif SUN4U 446 447 int 448 fdcmatch_sbus(struct device *parent, struct cfdata *match, void *aux) 449 { 450 struct sbus_attach_args *sa = aux; 451 452 return strcmp("SUNW,fdtwo", sa->sa_name) == 0; 453 } 454 455 int 456 fdcmatch_ebus(struct device *parent, struct cfdata *match, void *aux) 457 { 458 struct ebus_attach_args *ea = aux; 459 460 return strcmp("fdthree", ea->ea_name) == 0; 461 } 462 #endif 463 464 static void 465 establish_chip_type(struct fdc_softc *fdc, 466 bus_space_tag_t tag, bus_addr_t addr, bus_size_t size, 467 bus_space_handle_t handle) 468 { 469 uint8_t v; 470 471 /* 472 * This hack from Chris Torek: apparently DOR really 473 * addresses MSR/DRS on a 82072. 474 * We used to rely on the VERSION command to tell the 475 * difference (which did not work). 476 */ 477 478 /* First, check the size of the register bank */ 479 if (size < 8) 480 /* It isn't a 82077 */ 481 return; 482 483 #ifdef SUN4 484 /* Then probe the DOR register offset */ 485 if (bus_space_probe(tag, addr, 486 1, /* probe size */ 487 FDREG77_DOR, /* offset */ 488 0, /* flags */ 489 NULL, NULL) == 0) { 490 491 /* It isn't a 82077 */ 492 return; 493 } 494 #endif 495 496 v = bus_space_read_1(tag, handle, FDREG77_DOR); 497 if (v == NE7_RQM) { 498 /* 499 * Value in DOR looks like it's really MSR 500 */ 501 bus_space_write_1(tag, handle, FDREG77_DOR, FDC_250KBPS); 502 v = bus_space_read_1(tag, handle, FDREG77_DOR); 503 if (v == NE7_RQM) { 504 /* 505 * The value in the DOR didn't stick; 506 * it isn't a 82077 507 */ 508 return; 509 } 510 } 511 512 fdc->sc_flags |= FDC_82077; 513 } 514 515 /* 516 * Arguments passed between fdcattach and fdprobe. 517 */ 518 struct fdc_attach_args { 519 int fa_drive; 520 struct fd_type *fa_deftype; 521 }; 522 523 /* 524 * Print the location of a disk drive (called just before attaching the 525 * the drive). If `fdc' is not NULL, the drive was found but was not 526 * in the system config file; print the drive name as well. 527 * Return QUIET (config_find ignores this if the device was configured) to 528 * avoid printing `fdN not configured' messages. 529 */ 530 int 531 fdprint(void *aux, const char *fdc) 532 { 533 register struct fdc_attach_args *fa = aux; 534 535 if (!fdc) 536 aprint_normal(" drive %d", fa->fa_drive); 537 return QUIET; 538 } 539 540 /* 541 * Configure several parameters and features on the FDC. 542 * Return 0 on success. 543 */ 544 static int 545 fdconf(struct fdc_softc *fdc) 546 { 547 int vroom; 548 549 if (fdc_wrfifo(fdc, NE7CMD_DUMPREG) || fdcresult(fdc) != 10) 550 return -1; 551 552 /* 553 * dumpreg[7] seems to be a motor-off timeout; set it to whatever 554 * the PROM thinks is appropriate. 555 */ 556 if ((vroom = fdc->sc_status[7]) == 0) 557 vroom = 0x64; 558 559 /* Configure controller to use FIFO and Implied Seek */ 560 if (fdc_wrfifo(fdc, NE7CMD_CFG) != 0) 561 return -1; 562 if (fdc_wrfifo(fdc, vroom) != 0) 563 return -1; 564 if (fdc_wrfifo(fdc, fdc->sc_cfg) != 0) 565 return -1; 566 if (fdc_wrfifo(fdc, 0) != 0) /* PRETRK */ 567 return -1; 568 /* No result phase for the NE7CMD_CFG command */ 569 570 if ((fdc->sc_flags & FDC_82077) != 0) { 571 /* Lock configuration across soft resets. */ 572 if (fdc_wrfifo(fdc, NE7CMD_LOCK | CFG_LOCK) != 0 || 573 fdcresult(fdc) != 1) { 574 #ifdef DEBUG 575 printf("fdconf: CFGLOCK failed"); 576 #endif 577 return -1; 578 } 579 } 580 581 return 0; 582 #if 0 583 if (fdc_wrfifo(fdc, NE7CMD_VERSION) == 0 && 584 fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x90) { 585 if (fdc_debug) 586 printf("[version cmd]"); 587 } 588 #endif 589 } 590 591 #ifdef SUN4 592 void 593 fdcattach_mainbus(struct device *parent, struct device *self, void *aux) 594 { 595 struct fdc_softc *fdc = (void *)self; 596 struct mainbus_attach_args *ma = aux; 597 598 fdc->sc_bustag = ma->ma_bustag; 599 600 if (bus_space_map( 601 ma->ma_bustag, 602 ma->ma_paddr, 603 ma->ma_size, 604 BUS_SPACE_MAP_LINEAR, 605 &fdc->sc_handle) != 0) { 606 aprint_error_dev(self, "cannot map registers\n"); 607 return; 608 } 609 610 establish_chip_type(fdc, 611 ma->ma_bustag, 612 ma->ma_paddr, 613 ma->ma_size, 614 fdc->sc_handle); 615 616 if (fdcattach(fdc, ma->ma_pri) != 0) 617 bus_space_unmap(ma->ma_bustag, fdc->sc_handle, ma->ma_size); 618 } 619 620 void 621 fdcattach_obio(struct device *parent, struct device *self, void *aux) 622 { 623 struct fdc_softc *fdc = (void *)self; 624 union obio_attach_args *uoba = aux; 625 struct sbus_attach_args *sa = &uoba->uoba_sbus; 626 627 if (sa->sa_nintr == 0) { 628 printf(": no interrupt line configured\n"); 629 return; 630 } 631 632 fdc->sc_bustag = sa->sa_bustag; 633 634 if (sbus_bus_map(sa->sa_bustag, 635 sa->sa_slot, sa->sa_offset, sa->sa_size, 636 BUS_SPACE_MAP_LINEAR, &fdc->sc_handle) != 0) { 637 aprint_error_dev(self, "cannot map control registers\n"); 638 return; 639 } 640 641 establish_chip_type(fdc, 642 sa->sa_bustag, 643 sbus_bus_addr(sa->sa_bustag, sa->sa_slot, sa->sa_offset), 644 sa->sa_size, 645 fdc->sc_handle); 646 647 if (strcmp(prom_getpropstring(sa->sa_node, "status"), "disabled") == 0) { 648 printf(": no drives attached\n"); 649 return; 650 } 651 652 if (fdcattach(fdc, sa->sa_pri) != 0) 653 bus_space_unmap(sa->sa_bustag, fdc->sc_handle, sa->sa_size); 654 } 655 656 #elif SUN4U 657 658 void 659 fdcattach_sbus(struct device *parent, struct device *self, void *aux) 660 { 661 struct fdc_softc *fdc = (void *)self; 662 struct sbus_attach_args *sa = aux; 663 664 if (sa->sa_nintr == 0) { 665 printf(": no interrupt line configured\n"); 666 return; 667 } 668 669 if (auxio_fd_control(0) != 0) { 670 printf(": can't attach before auxio\n"); 671 return; 672 } 673 674 fdc->sc_bustag = sa->sa_bustag; 675 676 if (bus_space_map(sa->sa_bustag, BUS_ADDR(sa->sa_slot, sa->sa_offset), 677 sa->sa_size, 0, &fdc->sc_handle) != 0) { 678 printf(": cannot map control registers\n"); 679 return; 680 } 681 682 establish_chip_type(fdc, 683 sa->sa_bustag, 684 BUS_ADDR(sa->sa_slot, sa->sa_offset), 685 sa->sa_size, 686 fdc->sc_handle); 687 688 if (strcmp(prom_getpropstring(sa->sa_node, "status"), "disabled") == 0) { 689 printf(": no drives attached\n"); 690 return; 691 } 692 693 if (prom_getproplen(sa->sa_node, "manual") >= 0) 694 fdc->sc_flags |= FDC_NOEJECT; 695 696 697 if (fdcattach(fdc, sa->sa_pri) != 0) 698 bus_space_unmap(sa->sa_bustag, fdc->sc_handle, sa->sa_size); 699 } 700 701 void 702 fdcattach_ebus(struct device *parent, struct device *self, void *aux) 703 { 704 struct fdc_softc *fdc = (void *)self; 705 struct ebus_attach_args *ea = aux; 706 int map_vaddr; 707 708 if (ea->ea_nintr == 0) { 709 printf(": no interrupt line configured\n"); 710 return; 711 } 712 713 if (ea->ea_nreg < 3) { 714 printf(": expected 3 registers, only got %d\n", 715 ea->ea_nreg); 716 return; 717 } 718 719 fdc->sc_bustag = ea->ea_bustag; 720 721 if (ea->ea_nvaddr > 0) { 722 sparc_promaddr_to_handle(ea->ea_bustag, 723 ea->ea_vaddr[0], &fdc->sc_handle); 724 map_vaddr = 1; 725 } else if (bus_space_map(fdc->sc_bustag, 726 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 727 ea->ea_reg[0].size, 0, &fdc->sc_handle) == 0) { 728 map_vaddr = 0; 729 } else { 730 printf(": can't map control registers\n"); 731 return; 732 } 733 734 establish_chip_type(fdc, 735 fdc->sc_bustag, 736 map_vaddr ? ea->ea_vaddr[0] : 737 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 738 ea->ea_reg[0].size, 739 fdc->sc_handle); 740 741 fdc->sc_flags |= FDC_EBUS; 742 743 if (prom_getproplen(ea->ea_node, "manual") >= 0) 744 fdc->sc_flags |= FDC_NOEJECT; 745 746 if (fdcattach(fdc, ea->ea_intr[0]) != 0) 747 if (map_vaddr == 0) 748 bus_space_unmap(ea->ea_bustag, fdc->sc_handle, 749 ea->ea_reg[0].size); 750 } 751 #endif 752 753 int 754 fdcattach(struct fdc_softc *fdc, int pri) 755 { 756 struct fdc_attach_args fa; 757 int drive_attached; 758 char code; 759 760 callout_init(&fdc->sc_timo_ch, 0); 761 callout_init(&fdc->sc_intr_ch, 0); 762 763 fdc->sc_state = DEVIDLE; 764 fdc->sc_itask = FDC_ITASK_NONE; 765 fdc->sc_istatus = FDC_ISTATUS_NONE; 766 fdc->sc_flags |= FDC_EIS; 767 TAILQ_INIT(&fdc->sc_drives); 768 769 if ((fdc->sc_flags & FDC_82077) != 0) { 770 fdc->sc_reg_msr = FDREG77_MSR; 771 fdc->sc_reg_fifo = FDREG77_FIFO; 772 fdc->sc_reg_dor = FDREG77_DOR; 773 fdc->sc_reg_dir = FDREG77_DIR; 774 code = '7'; 775 fdc->sc_flags |= FDC_NEEDMOTORWAIT; 776 } else { 777 fdc->sc_reg_msr = FDREG72_MSR; 778 fdc->sc_reg_fifo = FDREG72_FIFO; 779 fdc->sc_reg_dor = 0; 780 code = '2'; 781 } 782 783 /* 784 * Configure controller; enable FIFO, Implied seek, no POLL mode?. 785 * Note: CFG_EFIFO is active-low, initial threshold value: 8 786 */ 787 fdc->sc_cfg = CFG_EIS|/*CFG_EFIFO|*/CFG_POLL|(8 & CFG_THRHLD_MASK); 788 if (fdconf(fdc) != 0) { 789 printf(": no drives attached\n"); 790 return -1; 791 } 792 793 fdc->sc_sicookie = softint_establish(SOFTINT_BIO, fdcswintr, fdc); 794 if (fdc->sc_sicookie == NULL) { 795 aprint_normal("\n"); 796 aprint_error_dev(&fdc->sc_dev, "cannot register soft interrupt handler\n"); 797 callout_stop(&fdc->sc_timo_ch); 798 callout_stop(&fdc->sc_intr_ch); 799 return -1; 800 } 801 #ifdef SUN4 802 printf(" softpri %d: chip 8207%c\n", IPL_SOFTFDC, code); 803 #elif SUN4U 804 printf(" softpri %d: chip 8207%c", PIL_FDSOFT, code); 805 if (fdc->sc_flags & FDC_NOEJECT) 806 printf(": manual eject"); 807 printf("\n"); 808 #endif 809 810 #ifdef SUN4 811 fdciop = &fdc->sc_io; 812 if (bus_intr_establish2(fdc->sc_bustag, pri, 0, 813 fdc_c_hwintr, fdc, fdchwintr) == NULL) { 814 #elif SUN4U 815 if (bus_intr_establish(fdc->sc_bustag, pri, IPL_BIO, 816 fdc_c_hwintr, fdc) == NULL) { 817 #endif 818 aprint_normal("\n"); 819 aprint_error_dev(&fdc->sc_dev, "cannot register interrupt handler\n"); 820 callout_stop(&fdc->sc_timo_ch); 821 callout_stop(&fdc->sc_intr_ch); 822 softint_disestablish(fdc->sc_sicookie); 823 return -1; 824 } 825 826 evcnt_attach_dynamic(&fdc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 827 device_xname(&fdc->sc_dev), "intr"); 828 829 /* physical limit: four drives per controller. */ 830 drive_attached = 0; 831 for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) { 832 fa.fa_deftype = NULL; /* unknown */ 833 fa.fa_deftype = &fd_types[0]; /* XXX */ 834 if (config_found(&fdc->sc_dev, (void *)&fa, fdprint) != NULL) 835 drive_attached = 1; 836 } 837 838 if (drive_attached == 0) { 839 /* XXX - dis-establish interrupts here */ 840 /* return -1; */ 841 } 842 843 return 0; 844 } 845 846 int 847 fdmatch(struct device *parent, struct cfdata *match, void *aux) 848 { 849 struct fdc_softc *fdc = (void *)parent; 850 bus_space_tag_t t = fdc->sc_bustag; 851 bus_space_handle_t h = fdc->sc_handle; 852 struct fdc_attach_args *fa = aux; 853 int drive = fa->fa_drive; 854 int n, ok; 855 856 if (drive > 0) 857 /* XXX - for now, punt on more than one drive */ 858 return 0; 859 860 if ((fdc->sc_flags & FDC_82077) != 0) { 861 /* select drive and turn on motor */ 862 bus_space_write_1(t, h, fdc->sc_reg_dor, 863 drive | FDO_FRST | FDO_MOEN(drive)); 864 /* wait for motor to spin up */ 865 delay(250000); 866 #ifdef SUN4 867 } else { 868 auxregbisc(AUXIO4C_FDS, 0); 869 #endif 870 } 871 fdc->sc_nstat = 0; 872 fdc_wrfifo(fdc, NE7CMD_RECAL); 873 fdc_wrfifo(fdc, drive); 874 875 /* Wait for recalibration to complete */ 876 for (n = 0; n < 10000; n++) { 877 uint8_t v; 878 879 delay(1000); 880 v = bus_space_read_1(t, h, fdc->sc_reg_msr); 881 if ((v & (NE7_RQM|NE7_DIO|NE7_CB)) == NE7_RQM) { 882 /* wait a bit longer till device *really* is ready */ 883 delay(100000); 884 if (fdc_wrfifo(fdc, NE7CMD_SENSEI)) 885 break; 886 if (fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x80) 887 /* 888 * Got `invalid command'; we interpret it 889 * to mean that the re-calibrate hasn't in 890 * fact finished yet 891 */ 892 continue; 893 break; 894 } 895 } 896 n = fdc->sc_nstat; 897 #ifdef FD_DEBUG 898 if (fdc_debug) { 899 int i; 900 printf("fdprobe: %d stati:", n); 901 for (i = 0; i < n; i++) 902 printf(" 0x%x", fdc->sc_status[i]); 903 printf("\n"); 904 } 905 #endif 906 ok = (n == 2 && (fdc->sc_status[0] & 0xf8) == 0x20) ? 1 : 0; 907 908 /* turn off motor */ 909 if ((fdc->sc_flags & FDC_82077) != 0) { 910 /* deselect drive and turn motor off */ 911 bus_space_write_1(t, h, fdc->sc_reg_dor, FDO_FRST | FDO_DS); 912 #ifdef SUN4 913 } else { 914 auxregbisc(0, AUXIO4C_FDS); 915 #endif 916 } 917 918 return ok; 919 } 920 921 /* 922 * Controller is working, and drive responded. Attach it. 923 */ 924 void 925 fdattach(struct device *parent, struct device *self, void *aux) 926 { 927 struct fdc_softc *fdc = (void *)parent; 928 struct fd_softc *fd = (void *)self; 929 struct fdc_attach_args *fa = aux; 930 struct fd_type *type = fa->fa_deftype; 931 int drive = fa->fa_drive; 932 933 callout_init(&fd->sc_motoron_ch, 0); 934 callout_init(&fd->sc_motoroff_ch, 0); 935 936 /* XXX Allow `flags' to override device type? */ 937 938 if (type) 939 printf(": %s %d cyl, %d head, %d sec\n", type->name, 940 type->cylinders, type->heads, type->sectrac); 941 else 942 printf(": density unknown\n"); 943 944 bufq_alloc(&fd->sc_q, "disksort", BUFQ_SORT_CYLINDER); 945 fd->sc_cylin = -1; 946 fd->sc_drive = drive; 947 fd->sc_deftype = type; 948 fdc->sc_fd[drive] = fd; 949 950 fdc_wrfifo(fdc, NE7CMD_SPECIFY); 951 fdc_wrfifo(fdc, type->steprate); 952 /* XXX head load time == 6ms */ 953 fdc_wrfifo(fdc, 6 | NE7_SPECIFY_NODMA); 954 955 /* 956 * Initialize and attach the disk structure. 957 */ 958 disk_init(&fd->sc_dk, device_xname(&fd->sc_dv), &fddkdriver); 959 disk_attach(&fd->sc_dk); 960 961 /* 962 * Establish a mountroot_hook anyway in case we booted 963 * with RB_ASKNAME and get selected as the boot device. 964 */ 965 mountroothook_establish(fd_mountroot_hook, &fd->sc_dv); 966 967 fd_set_properties(fd); 968 969 /* Make sure the drive motor gets turned off at shutdown time. */ 970 if (!pmf_device_register1(self, fdsuspend, NULL, fdshutdown)) 971 aprint_error_dev(self, "couldn't establish power handler\n"); 972 } 973 974 bool fdshutdown(device_t self, int how) 975 { 976 struct fd_softc *fd = device_private(self); 977 978 fd_motor_off(fd); 979 return true; 980 } 981 982 bool fdsuspend(device_t self PMF_FN_ARGS) 983 { 984 985 return fdshutdown(self, boothowto); 986 } 987 988 989 inline struct fd_type * 990 fd_dev_to_type(struct fd_softc *fd, dev_t dev) 991 { 992 int type = FDTYPE(dev); 993 994 if (type > (sizeof(fd_types) / sizeof(fd_types[0]))) 995 return NULL; 996 return type ? &fd_types[type - 1] : fd->sc_deftype; 997 } 998 999 void 1000 fdstrategy(struct buf *bp) 1001 { 1002 struct fd_softc *fd; 1003 int sz; 1004 int s; 1005 1006 /* Valid unit, controller, and request? */ 1007 fd = device_lookup_private(&fd_cd, FDUNIT(bp->b_dev)); 1008 if (fd == NULL) { 1009 bp->b_error = EINVAL; 1010 goto done; 1011 } 1012 1013 if (bp->b_blkno < 0 || 1014 (((bp->b_bcount % FD_BSIZE(fd)) != 0 || 1015 (bp->b_blkno * DEV_BSIZE) % FD_BSIZE(fd) != 0) && 1016 (bp->b_flags & B_FORMAT) == 0)) { 1017 bp->b_error = EINVAL; 1018 goto done; 1019 } 1020 1021 /* If it's a null transfer, return immediately. */ 1022 if (bp->b_bcount == 0) 1023 goto done; 1024 1025 sz = howmany(bp->b_bcount, DEV_BSIZE); 1026 1027 if (bp->b_blkno + sz > (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd)) { 1028 sz = (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd) 1029 - bp->b_blkno; 1030 if (sz == 0) { 1031 /* If exactly at end of disk, return EOF. */ 1032 bp->b_resid = bp->b_bcount; 1033 goto done; 1034 } 1035 if (sz < 0) { 1036 /* If past end of disk, return EINVAL. */ 1037 bp->b_error = EINVAL; 1038 goto done; 1039 } 1040 /* Otherwise, truncate request. */ 1041 bp->b_bcount = sz << DEV_BSHIFT; 1042 } 1043 1044 bp->b_rawblkno = bp->b_blkno; 1045 bp->b_cylinder = (bp->b_blkno * DEV_BSIZE) / 1046 (FD_BSIZE(fd) * fd->sc_type->seccyl); 1047 1048 #ifdef FD_DEBUG 1049 if (fdc_debug > 1) 1050 printf("fdstrategy: b_blkno %lld b_bcount %d blkno %lld cylin %d sz %d\n", 1051 (long long)bp->b_blkno, bp->b_bcount, 1052 (long long)fd->sc_blkno, bp->b_cylinder, sz); 1053 #endif 1054 1055 /* Queue transfer on drive, activate drive and controller if idle. */ 1056 s = splbio(); 1057 bufq_put(fd->sc_q, bp); 1058 callout_stop(&fd->sc_motoroff_ch); /* a good idea */ 1059 if (fd->sc_active == 0) 1060 fdstart(fd); 1061 #ifdef DIAGNOSTIC 1062 else { 1063 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1064 if (fdc->sc_state == DEVIDLE) { 1065 printf("fdstrategy: controller inactive\n"); 1066 fdcstart(fdc); 1067 } 1068 } 1069 #endif 1070 splx(s); 1071 return; 1072 1073 done: 1074 /* Toss transfer; we're done early. */ 1075 biodone(bp); 1076 } 1077 1078 void 1079 fdstart(struct fd_softc *fd) 1080 { 1081 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1082 int active = fdc->sc_drives.tqh_first != 0; 1083 1084 /* Link into controller queue. */ 1085 fd->sc_active = 1; 1086 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 1087 1088 /* If controller not already active, start it. */ 1089 if (!active) 1090 fdcstart(fdc); 1091 } 1092 1093 void 1094 fdfinish(struct fd_softc *fd, struct buf *bp) 1095 { 1096 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1097 1098 /* 1099 * Move this drive to the end of the queue to give others a `fair' 1100 * chance. We only force a switch if N operations are completed while 1101 * another drive is waiting to be serviced, since there is a long motor 1102 * startup delay whenever we switch. 1103 */ 1104 (void)bufq_get(fd->sc_q); 1105 if (fd->sc_drivechain.tqe_next && ++fd->sc_ops >= 8) { 1106 fd->sc_ops = 0; 1107 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1108 if (bufq_peek(fd->sc_q) != NULL) { 1109 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 1110 } else 1111 fd->sc_active = 0; 1112 } 1113 bp->b_resid = fd->sc_bcount; 1114 fd->sc_skip = 0; 1115 1116 biodone(bp); 1117 /* turn off motor 5s from now */ 1118 callout_reset(&fd->sc_motoroff_ch, 5 * hz, fd_motor_off, fd); 1119 fdc->sc_state = DEVIDLE; 1120 } 1121 1122 void 1123 fdc_reset(struct fdc_softc *fdc) 1124 { 1125 bus_space_tag_t t = fdc->sc_bustag; 1126 bus_space_handle_t h = fdc->sc_handle; 1127 1128 if ((fdc->sc_flags & FDC_82077) != 0) { 1129 bus_space_write_1(t, h, fdc->sc_reg_dor, 1130 FDO_FDMAEN | FDO_MOEN(0)); 1131 } 1132 1133 bus_space_write_1(t, h, fdc->sc_reg_drs, DRS_RESET); 1134 delay(10); 1135 bus_space_write_1(t, h, fdc->sc_reg_drs, 0); 1136 1137 if ((fdc->sc_flags & FDC_82077) != 0) { 1138 bus_space_write_1(t, h, fdc->sc_reg_dor, 1139 FDO_FRST | FDO_FDMAEN | FDO_DS); 1140 } 1141 #ifdef FD_DEBUG 1142 if (fdc_debug) 1143 printf("fdc reset\n"); 1144 #endif 1145 } 1146 1147 void 1148 fd_set_motor(struct fdc_softc *fdc) 1149 { 1150 struct fd_softc *fd; 1151 u_char status; 1152 int n; 1153 1154 if ((fdc->sc_flags & FDC_82077) != 0) { 1155 status = FDO_FRST | FDO_FDMAEN; 1156 if ((fd = fdc->sc_drives.tqh_first) != NULL) 1157 status |= fd->sc_drive; 1158 1159 for (n = 0; n < 4; n++) 1160 if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) 1161 status |= FDO_MOEN(n); 1162 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1163 fdc->sc_reg_dor, status); 1164 #ifdef SUN4 1165 } else { 1166 1167 for (n = 0; n < 4; n++) { 1168 if ((fd = fdc->sc_fd[n]) != NULL && 1169 (fd->sc_flags & FD_MOTOR) != 0) { 1170 auxregbisc(AUXIO4C_FDS, 0); 1171 return; 1172 } 1173 } 1174 auxregbisc(0, AUXIO4C_FDS); 1175 #endif 1176 } 1177 } 1178 1179 void 1180 fd_motor_off(void *arg) 1181 { 1182 struct fd_softc *fd = arg; 1183 int s; 1184 1185 s = splbio(); 1186 fd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1187 fd_set_motor((struct fdc_softc *)device_parent(&fd->sc_dv)); 1188 splx(s); 1189 } 1190 1191 void 1192 fd_motor_on(void *arg) 1193 { 1194 struct fd_softc *fd = arg; 1195 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 1196 int s; 1197 1198 s = splbio(); 1199 fd->sc_flags &= ~FD_MOTOR_WAIT; 1200 if ((fdc->sc_drives.tqh_first == fd) && (fdc->sc_state == MOTORWAIT)) 1201 (void)fdcstate(fdc); 1202 splx(s); 1203 } 1204 1205 /* 1206 * Get status bytes off the FDC after a command has finished 1207 * Returns the number of status bytes read; -1 on error. 1208 * The return value is also stored in `sc_nstat'. 1209 */ 1210 int 1211 fdcresult(struct fdc_softc *fdc) 1212 { 1213 bus_space_tag_t t = fdc->sc_bustag; 1214 bus_space_handle_t h = fdc->sc_handle; 1215 int j, n = 0; 1216 1217 for (j = 10000; j; j--) { 1218 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_msr); 1219 v &= (NE7_DIO | NE7_RQM | NE7_CB); 1220 if (v == NE7_RQM) 1221 return fdc->sc_nstat = n; 1222 if (v == (NE7_DIO | NE7_RQM | NE7_CB)) { 1223 if (n >= sizeof(fdc->sc_status)) { 1224 log(LOG_ERR, "fdcresult: overrun\n"); 1225 return -1; 1226 } 1227 fdc->sc_status[n++] = 1228 bus_space_read_1(t, h, fdc->sc_reg_fifo); 1229 } else 1230 delay(1); 1231 } 1232 1233 log(LOG_ERR, "fdcresult: timeout\n"); 1234 return fdc->sc_nstat = -1; 1235 } 1236 1237 /* 1238 * Write a command byte to the FDC. 1239 * Returns 0 on success; -1 on failure (i.e. timeout) 1240 */ 1241 int 1242 fdc_wrfifo(struct fdc_softc *fdc, uint8_t x) 1243 { 1244 bus_space_tag_t t = fdc->sc_bustag; 1245 bus_space_handle_t h = fdc->sc_handle; 1246 int i; 1247 1248 for (i = 100000; i-- > 0;) { 1249 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_msr); 1250 if ((v & (NE7_DIO|NE7_RQM)) == NE7_RQM) { 1251 /* The chip is ready */ 1252 bus_space_write_1(t, h, fdc->sc_reg_fifo, x); 1253 return 0; 1254 } 1255 delay(1); 1256 } 1257 return -1; 1258 } 1259 1260 int 1261 fdc_diskchange(struct fdc_softc *fdc) 1262 { 1263 1264 #ifdef SUN4 1265 if (CPU_ISSUN4M && (fdc->sc_flags & FDC_82077) != 0) { 1266 #endif 1267 bus_space_tag_t t = fdc->sc_bustag; 1268 bus_space_handle_t h = fdc->sc_handle; 1269 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_dir); 1270 return (v & FDI_DCHG) != 0; 1271 #ifdef SUN4 1272 } else if (CPU_ISSUN4C) { 1273 return (*AUXIO4C_REG & AUXIO4C_FDC) != 0; 1274 } 1275 return 0; 1276 #endif 1277 } 1278 1279 int 1280 fdopen(dev_t dev, int flags, int fmt, struct lwp *l) 1281 { 1282 int pmask; 1283 struct fd_softc *fd; 1284 struct fd_type *type; 1285 1286 fd = device_lookup_private(&fd_cd, FDUNIT(dev)); 1287 if (fd == NULL) 1288 return ENXIO; 1289 type = fd_dev_to_type(fd, dev); 1290 if (type == NULL) 1291 return ENXIO; 1292 1293 if ((fd->sc_flags & FD_OPEN) != 0 && 1294 fd->sc_type != type) 1295 return EBUSY; 1296 1297 fd->sc_type = type; 1298 fd->sc_cylin = -1; 1299 fd->sc_flags |= FD_OPEN; 1300 1301 /* 1302 * Only update the disklabel if we're not open anywhere else. 1303 */ 1304 if (fd->sc_dk.dk_openmask == 0) 1305 fdgetdisklabel(dev); 1306 1307 pmask = (1 << DISKPART(dev)); 1308 1309 switch (fmt) { 1310 case S_IFCHR: 1311 fd->sc_dk.dk_copenmask |= pmask; 1312 break; 1313 1314 case S_IFBLK: 1315 fd->sc_dk.dk_bopenmask |= pmask; 1316 break; 1317 } 1318 fd->sc_dk.dk_openmask = 1319 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1320 1321 return 0; 1322 } 1323 1324 int 1325 fdclose(dev_t dev, int flags, int fmt, struct lwp *l) 1326 { 1327 struct fd_softc *fd = device_lookup_private(&fd_cd, FDUNIT(dev)); 1328 int pmask = (1 << DISKPART(dev)); 1329 1330 fd->sc_flags &= ~FD_OPEN; 1331 fd->sc_opts &= ~(FDOPT_NORETRY|FDOPT_SILENT); 1332 1333 switch (fmt) { 1334 case S_IFCHR: 1335 fd->sc_dk.dk_copenmask &= ~pmask; 1336 break; 1337 1338 case S_IFBLK: 1339 fd->sc_dk.dk_bopenmask &= ~pmask; 1340 break; 1341 } 1342 fd->sc_dk.dk_openmask = 1343 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1344 1345 return 0; 1346 } 1347 1348 int 1349 fdread(dev_t dev, struct uio *uio, int flag) 1350 { 1351 1352 return physio(fdstrategy, NULL, dev, B_READ, minphys, uio); 1353 } 1354 1355 int 1356 fdwrite(dev_t dev, struct uio *uio, int flag) 1357 { 1358 1359 return physio(fdstrategy, NULL, dev, B_WRITE, minphys, uio); 1360 } 1361 1362 void 1363 fdcstart(struct fdc_softc *fdc) 1364 { 1365 1366 #ifdef DIAGNOSTIC 1367 /* only got here if controller's drive queue was inactive; should 1368 be in idle state */ 1369 if (fdc->sc_state != DEVIDLE) { 1370 printf("fdcstart: not idle\n"); 1371 return; 1372 } 1373 #endif 1374 (void)fdcstate(fdc); 1375 } 1376 1377 static void 1378 fdcpstatus(struct fdc_softc *fdc) 1379 { 1380 char bits[64]; 1381 1382 snprintb(bits, sizeof(bits), NE7_ST0BITS, fdc->sc_status[0]); 1383 printf(" (st0 %s", bits); 1384 snprintb(bits, sizeof(bits), NE7_ST1BITS, fdc->sc_status[1]); 1385 printf(" st1 %s", bits); 1386 snprintb(bits, sizeof(bits), NE7_ST2BITS, fdc->sc_status[2]); 1387 printf(" st2 %s", bits); 1388 printf(" cyl %d head %d sec %d)\n", 1389 fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); 1390 } 1391 1392 void 1393 fdcstatus(struct fdc_softc *fdc, const char *s) 1394 { 1395 struct fd_softc *fd = fdc->sc_drives.tqh_first; 1396 int n; 1397 char bits[64]; 1398 1399 /* Just print last status */ 1400 n = fdc->sc_nstat; 1401 1402 #if 0 1403 /* 1404 * A 82072 seems to return <invalid command> on 1405 * gratuitous Sense Interrupt commands. 1406 */ 1407 if (n == 0 && (fdc->sc_flags & FDC_82077) != 0) { 1408 fdc_wrfifo(fdc, NE7CMD_SENSEI); 1409 (void)fdcresult(fdc); 1410 n = 2; 1411 } 1412 #endif 1413 1414 printf("%s: %s: state %d", 1415 fd ? device_xname(&fd->sc_dv) : "fdc", s, fdc->sc_state); 1416 1417 switch (n) { 1418 case 0: 1419 printf("\n"); 1420 break; 1421 case 2: 1422 snprintb(bits, sizeof(bits), NE7_ST0BITS, fdc->sc_status[0]); 1423 printf(" (st0 %s cyl %d)\n", bits, fdc->sc_status[1]); 1424 break; 1425 case 7: 1426 fdcpstatus(fdc); 1427 break; 1428 #ifdef DIAGNOSTIC 1429 default: 1430 printf(" fdcstatus: weird size: %d\n", n); 1431 break; 1432 #endif 1433 } 1434 } 1435 1436 void 1437 fdctimeout(void *arg) 1438 { 1439 struct fdc_softc *fdc = arg; 1440 struct fd_softc *fd; 1441 int s; 1442 1443 s = splbio(); 1444 fd = fdc->sc_drives.tqh_first; 1445 if (fd == NULL) { 1446 aprint_error_dev(&fdc->sc_dev, "timeout but no I/O pending: state %d, istatus=%d\n", 1447 fdc->sc_state, fdc->sc_istatus); 1448 fdc->sc_state = DEVIDLE; 1449 goto out; 1450 } 1451 1452 if (bufq_peek(fd->sc_q) != NULL) 1453 fdc->sc_state++; 1454 else 1455 fdc->sc_state = DEVIDLE; 1456 1457 (void)fdcstate(fdc); 1458 out: 1459 splx(s); 1460 1461 } 1462 1463 void 1464 fdcpseudointr(void *arg) 1465 { 1466 struct fdc_softc *fdc = arg; 1467 int s; 1468 1469 /* Just ensure it has the right spl. */ 1470 s = splbio(); 1471 (void)fdcstate(fdc); 1472 splx(s); 1473 } 1474 1475 1476 /* 1477 * hardware interrupt entry point: used only if no `fast trap' * (in-window) 1478 * handler is available. Unfortunately, we have no reliable way to 1479 * determine that the interrupt really came from the floppy controller; 1480 * just hope that the other devices that share this interrupt level 1481 * can do better.. 1482 */ 1483 int 1484 fdc_c_hwintr(void *arg) 1485 { 1486 struct fdc_softc *fdc = arg; 1487 bus_space_tag_t t = fdc->sc_bustag; 1488 bus_space_handle_t h = fdc->sc_handle; 1489 1490 switch (fdc->sc_itask) { 1491 case FDC_ITASK_NONE: 1492 return 0; 1493 case FDC_ITASK_SENSEI: 1494 if (fdc_wrfifo(fdc, NE7CMD_SENSEI) != 0 || fdcresult(fdc) == -1) 1495 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1496 else 1497 fdc->sc_istatus = FDC_ISTATUS_DONE; 1498 softint_schedule(fdc->sc_sicookie); 1499 return 1; 1500 case FDC_ITASK_RESULT: 1501 if (fdcresult(fdc) == -1) 1502 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1503 else 1504 fdc->sc_istatus = FDC_ISTATUS_DONE; 1505 softint_schedule(fdc->sc_sicookie); 1506 return 1; 1507 case FDC_ITASK_DMA: 1508 /* Proceed with pseudo-DMA below */ 1509 break; 1510 default: 1511 printf("fdc: stray hard interrupt: itask=%d\n", fdc->sc_itask); 1512 fdc->sc_istatus = FDC_ISTATUS_SPURIOUS; 1513 softint_schedule(fdc->sc_sicookie); 1514 return 1; 1515 } 1516 1517 /* 1518 * Pseudo DMA in progress 1519 */ 1520 for (;;) { 1521 uint8_t msr; 1522 1523 msr = bus_space_read_1(t, h, fdc->sc_reg_msr); 1524 1525 if ((msr & NE7_RQM) == 0) 1526 /* That's all this round. */ 1527 break; 1528 1529 if ((msr & NE7_NDM) == 0) { 1530 /* Execution phase finished, get result. */ 1531 fdcresult(fdc); 1532 fdc->sc_istatus = FDC_ISTATUS_DONE; 1533 softint_schedule(fdc->sc_sicookie); 1534 break; 1535 } 1536 1537 if (fdc->sc_tc == 0) 1538 /* For some reason the controller wants to transfer 1539 more data then what we want to transfer. */ 1540 panic("fdc: overrun"); 1541 1542 /* Another byte can be transferred */ 1543 if ((msr & NE7_DIO) != 0) 1544 *fdc->sc_data = 1545 bus_space_read_1(t, h, fdc->sc_reg_fifo); 1546 else 1547 bus_space_write_1(t, h, fdc->sc_reg_fifo, 1548 *fdc->sc_data); 1549 1550 fdc->sc_data++; 1551 if (--fdc->sc_tc == 0) { 1552 FTC_FLIP; 1553 break; 1554 } 1555 } 1556 return 1; 1557 } 1558 1559 void 1560 fdcswintr(void *arg) 1561 { 1562 struct fdc_softc *fdc = arg; 1563 1564 if (fdc->sc_istatus == FDC_ISTATUS_NONE) 1565 /* This (software) interrupt is not for us */ 1566 return; 1567 1568 switch (fdc->sc_istatus) { 1569 case FDC_ISTATUS_ERROR: 1570 printf("fdc: ierror status: state %d\n", fdc->sc_state); 1571 break; 1572 case FDC_ISTATUS_SPURIOUS: 1573 printf("fdc: spurious interrupt: state %d\n", fdc->sc_state); 1574 break; 1575 } 1576 1577 fdcstate(fdc); 1578 return; 1579 } 1580 1581 int 1582 fdcstate(struct fdc_softc *fdc) 1583 { 1584 1585 #define st0 fdc->sc_status[0] 1586 #define st1 fdc->sc_status[1] 1587 #define cyl fdc->sc_status[1] 1588 #define FDC_WRFIFO(fdc, c) do { \ 1589 if (fdc_wrfifo(fdc, (c))) { \ 1590 goto xxx; \ 1591 } \ 1592 } while(0) 1593 1594 struct fd_softc *fd; 1595 struct buf *bp; 1596 int read, head, sec, nblks; 1597 struct fd_type *type; 1598 struct ne7_fd_formb *finfo = NULL; 1599 1600 if (fdc->sc_istatus == FDC_ISTATUS_ERROR) { 1601 /* Prevent loop if the reset sequence produces errors */ 1602 if (fdc->sc_state != RESETCOMPLETE && 1603 fdc->sc_state != RECALWAIT && 1604 fdc->sc_state != RECALCOMPLETE) 1605 fdc->sc_state = DORESET; 1606 } 1607 1608 /* Clear I task/status field */ 1609 fdc->sc_istatus = FDC_ISTATUS_NONE; 1610 fdc->sc_itask = FDC_ITASK_NONE; 1611 1612 loop: 1613 /* Is there a drive for the controller to do a transfer with? */ 1614 fd = fdc->sc_drives.tqh_first; 1615 if (fd == NULL) { 1616 fdc->sc_state = DEVIDLE; 1617 return 0; 1618 } 1619 1620 /* Is there a transfer to this drive? If not, deactivate drive. */ 1621 bp = bufq_peek(fd->sc_q); 1622 if (bp == NULL) { 1623 fd->sc_ops = 0; 1624 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1625 fd->sc_active = 0; 1626 goto loop; 1627 } 1628 1629 if (bp->b_flags & B_FORMAT) 1630 finfo = (struct ne7_fd_formb *)bp->b_data; 1631 1632 switch (fdc->sc_state) { 1633 case DEVIDLE: 1634 fdc->sc_errors = 0; 1635 fd->sc_skip = 0; 1636 fd->sc_bcount = bp->b_bcount; 1637 fd->sc_blkno = (bp->b_blkno * DEV_BSIZE) / FD_BSIZE(fd); 1638 callout_stop(&fd->sc_motoroff_ch); 1639 if ((fd->sc_flags & FD_MOTOR_WAIT) != 0) { 1640 fdc->sc_state = MOTORWAIT; 1641 return 1; 1642 } 1643 if ((fd->sc_flags & FD_MOTOR) == 0) { 1644 /* Turn on the motor, being careful about pairing. */ 1645 struct fd_softc *ofd = fdc->sc_fd[fd->sc_drive ^ 1]; 1646 if (ofd && ofd->sc_flags & FD_MOTOR) { 1647 callout_stop(&ofd->sc_motoroff_ch); 1648 ofd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1649 } 1650 fd->sc_flags |= FD_MOTOR | FD_MOTOR_WAIT; 1651 fd_set_motor(fdc); 1652 fdc->sc_state = MOTORWAIT; 1653 if ((fdc->sc_flags & FDC_NEEDMOTORWAIT) != 0) { /*XXX*/ 1654 /* Allow .25s for motor to stabilize. */ 1655 callout_reset(&fd->sc_motoron_ch, hz / 4, 1656 fd_motor_on, fd); 1657 } else { 1658 fd->sc_flags &= ~FD_MOTOR_WAIT; 1659 goto loop; 1660 } 1661 return 1; 1662 } 1663 /* Make sure the right drive is selected. */ 1664 fd_set_motor(fdc); 1665 1666 if (fdc_diskchange(fdc)) 1667 goto dodskchg; 1668 1669 /*FALLTHROUGH*/ 1670 case DOSEEK: 1671 doseek: 1672 if ((fdc->sc_flags & FDC_EIS) && 1673 (bp->b_flags & B_FORMAT) == 0) { 1674 fd->sc_cylin = bp->b_cylinder; 1675 /* We use implied seek */ 1676 goto doio; 1677 } 1678 1679 if (fd->sc_cylin == bp->b_cylinder) 1680 goto doio; 1681 1682 fd->sc_cylin = -1; 1683 fdc->sc_state = SEEKWAIT; 1684 fdc->sc_nstat = 0; 1685 1686 iostat_seek(fd->sc_dk.dk_stats); 1687 1688 disk_busy(&fd->sc_dk); 1689 callout_reset(&fdc->sc_timo_ch, 4 * hz, fdctimeout, fdc); 1690 1691 /* specify command */ 1692 FDC_WRFIFO(fdc, NE7CMD_SPECIFY); 1693 FDC_WRFIFO(fdc, fd->sc_type->steprate); 1694 /* XXX head load time == 6ms */ 1695 FDC_WRFIFO(fdc, 6 | NE7_SPECIFY_NODMA); 1696 1697 fdc->sc_itask = FDC_ITASK_SENSEI; 1698 /* seek function */ 1699 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1700 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1701 FDC_WRFIFO(fdc, bp->b_cylinder * fd->sc_type->step); 1702 return 1; 1703 1704 case DODSKCHG: 1705 dodskchg: 1706 /* 1707 * Disk change: force a seek operation by going to cyl 1 1708 * followed by a recalibrate. 1709 */ 1710 disk_busy(&fd->sc_dk); 1711 callout_reset(&fdc->sc_timo_ch, 4 * hz, fdctimeout, fdc); 1712 fd->sc_cylin = -1; 1713 fdc->sc_nstat = 0; 1714 fdc->sc_state = DSKCHGWAIT; 1715 1716 fdc->sc_itask = FDC_ITASK_SENSEI; 1717 /* seek function */ 1718 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1719 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1720 FDC_WRFIFO(fdc, 1 * fd->sc_type->step); 1721 return 1; 1722 1723 case DSKCHGWAIT: 1724 callout_stop(&fdc->sc_timo_ch); 1725 disk_unbusy(&fd->sc_dk, 0, 0); 1726 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1727 cyl != 1 * fd->sc_type->step) { 1728 fdcstatus(fdc, "dskchg seek failed"); 1729 fdc->sc_state = DORESET; 1730 } else 1731 fdc->sc_state = DORECAL; 1732 1733 if (fdc_diskchange(fdc)) { 1734 aprint_error_dev(&fdc->sc_dev, "cannot clear disk change status\n"); 1735 fdc->sc_state = DORESET; 1736 } 1737 goto loop; 1738 1739 case DOIO: 1740 doio: 1741 if (finfo != NULL) 1742 fd->sc_skip = (char *)&(finfo->fd_formb_cylno(0)) - 1743 (char *)finfo; 1744 type = fd->sc_type; 1745 sec = fd->sc_blkno % type->seccyl; 1746 nblks = type->seccyl - sec; 1747 nblks = min(nblks, fd->sc_bcount / FD_BSIZE(fd)); 1748 nblks = min(nblks, FDC_MAXIOSIZE / FD_BSIZE(fd)); 1749 fd->sc_nblks = nblks; 1750 fd->sc_nbytes = finfo ? bp->b_bcount : nblks * FD_BSIZE(fd); 1751 head = sec / type->sectrac; 1752 sec -= head * type->sectrac; 1753 #ifdef DIAGNOSTIC 1754 {int block; 1755 block = (fd->sc_cylin * type->heads + head) * type->sectrac + 1756 sec; 1757 if (block != fd->sc_blkno) { 1758 printf("fdcintr: block %d != blkno %d\n", block, 1759 (int)fd->sc_blkno); 1760 #ifdef DDB 1761 Debugger(); 1762 #endif 1763 }} 1764 #endif 1765 read = bp->b_flags & B_READ; 1766 1767 /* Setup for pseudo DMA */ 1768 fdc->sc_data = (char *)bp->b_data + fd->sc_skip; 1769 fdc->sc_tc = fd->sc_nbytes; 1770 1771 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1772 fdc->sc_reg_drs, type->rate); 1773 #ifdef FD_DEBUG 1774 if (fdc_debug > 1) 1775 printf("fdcstate: doio: %s drive %d " 1776 "track %d head %d sec %d nblks %d\n", 1777 finfo ? "format" : 1778 (read ? "read" : "write"), 1779 fd->sc_drive, fd->sc_cylin, head, sec, nblks); 1780 #endif 1781 fdc->sc_state = IOCOMPLETE; 1782 fdc->sc_itask = FDC_ITASK_DMA; 1783 fdc->sc_nstat = 0; 1784 1785 disk_busy(&fd->sc_dk); 1786 1787 /* allow 3 seconds for operation */ 1788 callout_reset(&fdc->sc_timo_ch, 3 * hz, fdctimeout, fdc); 1789 1790 if (finfo != NULL) { 1791 /* formatting */ 1792 FDC_WRFIFO(fdc, NE7CMD_FORMAT); 1793 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1794 FDC_WRFIFO(fdc, finfo->fd_formb_secshift); 1795 FDC_WRFIFO(fdc, finfo->fd_formb_nsecs); 1796 FDC_WRFIFO(fdc, finfo->fd_formb_gaplen); 1797 FDC_WRFIFO(fdc, finfo->fd_formb_fillbyte); 1798 } else { 1799 if (read) 1800 FDC_WRFIFO(fdc, NE7CMD_READ); 1801 else 1802 FDC_WRFIFO(fdc, NE7CMD_WRITE); 1803 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1804 FDC_WRFIFO(fdc, fd->sc_cylin); /*track*/ 1805 FDC_WRFIFO(fdc, head); 1806 FDC_WRFIFO(fdc, sec + 1); /*sector+1*/ 1807 FDC_WRFIFO(fdc, type->secsize); /*sector size*/ 1808 FDC_WRFIFO(fdc, type->sectrac); /*secs/track*/ 1809 FDC_WRFIFO(fdc, type->gap1); /*gap1 size*/ 1810 FDC_WRFIFO(fdc, type->datalen); /*data length*/ 1811 } 1812 1813 return 1; /* will return later */ 1814 1815 case SEEKWAIT: 1816 callout_stop(&fdc->sc_timo_ch); 1817 fdc->sc_state = SEEKCOMPLETE; 1818 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1819 /* allow 1/50 second for heads to settle */ 1820 callout_reset(&fdc->sc_intr_ch, hz / 50, 1821 fdcpseudointr, fdc); 1822 return 1; /* will return later */ 1823 } 1824 /*FALLTHROUGH*/ 1825 case SEEKCOMPLETE: 1826 /* no data on seek */ 1827 disk_unbusy(&fd->sc_dk, 0, 0); 1828 1829 /* Make sure seek really happened. */ 1830 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1831 cyl != bp->b_cylinder * fd->sc_type->step) { 1832 #ifdef FD_DEBUG 1833 if (fdc_debug) 1834 fdcstatus(fdc, "seek failed"); 1835 #endif 1836 fdcretry(fdc); 1837 goto loop; 1838 } 1839 fd->sc_cylin = bp->b_cylinder; 1840 goto doio; 1841 1842 case IOTIMEDOUT: 1843 /* 1844 * Try to abort the I/O operation without resetting 1845 * the chip first. Poke TC and arrange to pick up 1846 * the timed out I/O command's status. 1847 */ 1848 fdc->sc_itask = FDC_ITASK_RESULT; 1849 fdc->sc_state = IOCLEANUPWAIT; 1850 fdc->sc_nstat = 0; 1851 /* 1/10 second should be enough */ 1852 callout_reset(&fdc->sc_timo_ch, hz / 10, fdctimeout, fdc); 1853 FTC_FLIP; 1854 return 1; 1855 1856 case IOCLEANUPTIMEDOUT: 1857 case SEEKTIMEDOUT: 1858 case RECALTIMEDOUT: 1859 case RESETTIMEDOUT: 1860 case DSKCHGTIMEDOUT: 1861 fdcstatus(fdc, "timeout"); 1862 1863 /* All other timeouts always roll through to a chip reset */ 1864 fdcretry(fdc); 1865 1866 /* Force reset, no matter what fdcretry() says */ 1867 fdc->sc_state = DORESET; 1868 goto loop; 1869 1870 case IOCLEANUPWAIT: /* IO FAILED, cleanup succeeded */ 1871 callout_stop(&fdc->sc_timo_ch); 1872 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1873 (bp->b_flags & B_READ)); 1874 fdcretry(fdc); 1875 goto loop; 1876 1877 case IOCOMPLETE: /* IO DONE, post-analyze */ 1878 callout_stop(&fdc->sc_timo_ch); 1879 1880 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1881 (bp->b_flags & B_READ)); 1882 1883 if (fdc->sc_nstat != 7 || st1 != 0 || 1884 ((st0 & 0xf8) != 0 && 1885 ((st0 & 0xf8) != 0x20 || (fdc->sc_cfg & CFG_EIS) == 0))) { 1886 #ifdef FD_DEBUG 1887 if (fdc_debug) { 1888 fdcstatus(fdc, bp->b_flags & B_READ ? 1889 "read failed" : "write failed"); 1890 printf("blkno %lld nblks %d nstat %d tc %d\n", 1891 (long long)fd->sc_blkno, fd->sc_nblks, 1892 fdc->sc_nstat, fdc->sc_tc); 1893 } 1894 #endif 1895 if (fdc->sc_nstat == 7 && 1896 (st1 & ST1_OVERRUN) == ST1_OVERRUN) { 1897 1898 /* 1899 * Silently retry overruns if no other 1900 * error bit is set. Adjust threshold. 1901 */ 1902 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1903 if (thr < 15) { 1904 thr++; 1905 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1906 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1907 #ifdef FD_DEBUG 1908 if (fdc_debug) 1909 printf("fdc: %d -> threshold\n", 1910 thr); 1911 #endif 1912 fdconf(fdc); 1913 fdc->sc_overruns = 0; 1914 } 1915 if (++fdc->sc_overruns < 3) { 1916 fdc->sc_state = DOIO; 1917 goto loop; 1918 } 1919 } 1920 fdcretry(fdc); 1921 goto loop; 1922 } 1923 if (fdc->sc_errors) { 1924 diskerr(bp, "fd", "soft error", LOG_PRINTF, 1925 fd->sc_skip / FD_BSIZE(fd), 1926 (struct disklabel *)NULL); 1927 printf("\n"); 1928 fdc->sc_errors = 0; 1929 } else { 1930 if (--fdc->sc_overruns < -20) { 1931 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1932 if (thr > 0) { 1933 thr--; 1934 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1935 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1936 #ifdef FD_DEBUG 1937 if (fdc_debug) 1938 printf("fdc: %d -> threshold\n", 1939 thr); 1940 #endif 1941 fdconf(fdc); 1942 } 1943 fdc->sc_overruns = 0; 1944 } 1945 } 1946 fd->sc_blkno += fd->sc_nblks; 1947 fd->sc_skip += fd->sc_nbytes; 1948 fd->sc_bcount -= fd->sc_nbytes; 1949 if (finfo == NULL && fd->sc_bcount > 0) { 1950 bp->b_cylinder = fd->sc_blkno / fd->sc_type->seccyl; 1951 goto doseek; 1952 } 1953 fdfinish(fd, bp); 1954 goto loop; 1955 1956 case DORESET: 1957 /* try a reset, keep motor on */ 1958 fd_set_motor(fdc); 1959 delay(100); 1960 fdc->sc_nstat = 0; 1961 fdc->sc_itask = FDC_ITASK_SENSEI; 1962 fdc->sc_state = RESETCOMPLETE; 1963 callout_reset(&fdc->sc_timo_ch, hz / 2, fdctimeout, fdc); 1964 fdc_reset(fdc); 1965 return 1; /* will return later */ 1966 1967 case RESETCOMPLETE: 1968 callout_stop(&fdc->sc_timo_ch); 1969 fdconf(fdc); 1970 1971 /* FALLTHROUGH */ 1972 case DORECAL: 1973 fdc->sc_state = RECALWAIT; 1974 fdc->sc_itask = FDC_ITASK_SENSEI; 1975 fdc->sc_nstat = 0; 1976 callout_reset(&fdc->sc_timo_ch, 5 * hz, fdctimeout, fdc); 1977 /* recalibrate function */ 1978 FDC_WRFIFO(fdc, NE7CMD_RECAL); 1979 FDC_WRFIFO(fdc, fd->sc_drive); 1980 return 1; /* will return later */ 1981 1982 case RECALWAIT: 1983 callout_stop(&fdc->sc_timo_ch); 1984 fdc->sc_state = RECALCOMPLETE; 1985 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1986 /* allow 1/30 second for heads to settle */ 1987 callout_reset(&fdc->sc_intr_ch, hz / 30, 1988 fdcpseudointr, fdc); 1989 return 1; /* will return later */ 1990 } 1991 1992 case RECALCOMPLETE: 1993 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || cyl != 0) { 1994 #ifdef FD_DEBUG 1995 if (fdc_debug) 1996 fdcstatus(fdc, "recalibrate failed"); 1997 #endif 1998 fdcretry(fdc); 1999 goto loop; 2000 } 2001 fd->sc_cylin = 0; 2002 goto doseek; 2003 2004 case MOTORWAIT: 2005 if (fd->sc_flags & FD_MOTOR_WAIT) 2006 return 1; /* time's not up yet */ 2007 goto doseek; 2008 2009 default: 2010 fdcstatus(fdc, "stray interrupt"); 2011 return 1; 2012 } 2013 #ifdef DIAGNOSTIC 2014 panic("fdcintr: impossible"); 2015 #endif 2016 2017 xxx: 2018 /* 2019 * We get here if the chip locks up in FDC_WRFIFO() 2020 * Cancel any operation and schedule a reset 2021 */ 2022 callout_stop(&fdc->sc_timo_ch); 2023 fdcretry(fdc); 2024 fdc->sc_state = DORESET; 2025 goto loop; 2026 2027 #undef st0 2028 #undef st1 2029 #undef cyl 2030 } 2031 2032 void 2033 fdcretry(struct fdc_softc *fdc) 2034 { 2035 struct fd_softc *fd; 2036 struct buf *bp; 2037 int error = EIO; 2038 2039 fd = fdc->sc_drives.tqh_first; 2040 bp = bufq_peek(fd->sc_q); 2041 2042 fdc->sc_overruns = 0; 2043 if (fd->sc_opts & FDOPT_NORETRY) 2044 goto fail; 2045 2046 switch (fdc->sc_errors) { 2047 case 0: 2048 if (fdc->sc_nstat == 7 && 2049 (fdc->sc_status[0] & 0xd8) == 0x40 && 2050 (fdc->sc_status[1] & 0x2) == 0x2) { 2051 aprint_error_dev(&fdc->sc_dev, "read-only medium\n"); 2052 error = EROFS; 2053 goto failsilent; 2054 } 2055 /* try again */ 2056 fdc->sc_state = 2057 (fdc->sc_flags & FDC_EIS) ? DOIO : DOSEEK; 2058 break; 2059 2060 case 1: case 2: case 3: 2061 /* didn't work; try recalibrating */ 2062 fdc->sc_state = DORECAL; 2063 break; 2064 2065 case 4: 2066 if (fdc->sc_nstat == 7 && 2067 fdc->sc_status[0] == 0 && 2068 fdc->sc_status[1] == 0 && 2069 fdc->sc_status[2] == 0) { 2070 /* 2071 * We've retried a few times and we've got 2072 * valid status and all three status bytes 2073 * are zero. Assume this condition is the 2074 * result of no disk loaded into the drive. 2075 */ 2076 aprint_error_dev(&fdc->sc_dev, "no medium?\n"); 2077 error = ENODEV; 2078 goto failsilent; 2079 } 2080 2081 /* still no go; reset the bastard */ 2082 fdc->sc_state = DORESET; 2083 break; 2084 2085 default: 2086 fail: 2087 if ((fd->sc_opts & FDOPT_SILENT) == 0) { 2088 diskerr(bp, "fd", "hard error", LOG_PRINTF, 2089 fd->sc_skip / FD_BSIZE(fd), 2090 (struct disklabel *)NULL); 2091 printf("\n"); 2092 fdcstatus(fdc, "controller status"); 2093 } 2094 2095 failsilent: 2096 bp->b_error = error; 2097 fdfinish(fd, bp); 2098 } 2099 fdc->sc_errors++; 2100 } 2101 2102 int 2103 fdioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l) 2104 { 2105 struct fd_softc *fd; 2106 struct fdc_softc *fdc; 2107 struct fdformat_parms *form_parms; 2108 struct fdformat_cmd *form_cmd; 2109 struct ne7_fd_formb *fd_formb; 2110 int il[FD_MAX_NSEC + 1]; 2111 int unit; 2112 int i, j; 2113 int error; 2114 2115 unit = FDUNIT(dev); 2116 if (unit >= fd_cd.cd_ndevs) 2117 return ENXIO; 2118 2119 fd = device_lookup_private(&fd_cd, FDUNIT(dev)); 2120 fdc = device_private(device_parent(&fd->sc_dv)); 2121 2122 switch (cmd) { 2123 case DIOCGDINFO: 2124 *(struct disklabel *)addr = *(fd->sc_dk.dk_label); 2125 return 0; 2126 2127 case DIOCWLABEL: 2128 if ((flag & FWRITE) == 0) 2129 return EBADF; 2130 /* XXX do something */ 2131 return 0; 2132 2133 case DIOCWDINFO: 2134 if ((flag & FWRITE) == 0) 2135 return EBADF; 2136 2137 error = setdisklabel(fd->sc_dk.dk_label, 2138 (struct disklabel *)addr, 0, 2139 fd->sc_dk.dk_cpulabel); 2140 if (error) 2141 return error; 2142 2143 error = writedisklabel(dev, fdstrategy, 2144 fd->sc_dk.dk_label, 2145 fd->sc_dk.dk_cpulabel); 2146 return error; 2147 2148 case DIOCLOCK: 2149 /* 2150 * Nothing to do here, really. 2151 */ 2152 return 0; 2153 2154 case DIOCEJECT: 2155 if (*(int *)addr == 0) { 2156 int part = DISKPART(dev); 2157 /* 2158 * Don't force eject: check that we are the only 2159 * partition open. If so, unlock it. 2160 */ 2161 if ((fd->sc_dk.dk_openmask & ~(1 << part)) != 0 || 2162 fd->sc_dk.dk_bopenmask + fd->sc_dk.dk_copenmask != 2163 fd->sc_dk.dk_openmask) { 2164 return EBUSY; 2165 } 2166 } 2167 /* FALLTHROUGH */ 2168 case ODIOCEJECT: 2169 if (fdc->sc_flags & FDC_NOEJECT) 2170 return EINVAL; 2171 fd_do_eject(fd); 2172 return 0; 2173 2174 case FDIOCGETFORMAT: 2175 form_parms = (struct fdformat_parms *)addr; 2176 form_parms->fdformat_version = FDFORMAT_VERSION; 2177 form_parms->nbps = 128 * (1 << fd->sc_type->secsize); 2178 form_parms->ncyl = fd->sc_type->cylinders; 2179 form_parms->nspt = fd->sc_type->sectrac; 2180 form_parms->ntrk = fd->sc_type->heads; 2181 form_parms->stepspercyl = fd->sc_type->step; 2182 form_parms->gaplen = fd->sc_type->gap2; 2183 form_parms->fillbyte = fd->sc_type->fillbyte; 2184 form_parms->interleave = fd->sc_type->interleave; 2185 switch (fd->sc_type->rate) { 2186 case FDC_500KBPS: 2187 form_parms->xfer_rate = 500 * 1024; 2188 break; 2189 case FDC_300KBPS: 2190 form_parms->xfer_rate = 300 * 1024; 2191 break; 2192 case FDC_250KBPS: 2193 form_parms->xfer_rate = 250 * 1024; 2194 break; 2195 default: 2196 return EINVAL; 2197 } 2198 return 0; 2199 2200 case FDIOCSETFORMAT: 2201 if ((flag & FWRITE) == 0) 2202 return EBADF; /* must be opened for writing */ 2203 2204 form_parms = (struct fdformat_parms *)addr; 2205 if (form_parms->fdformat_version != FDFORMAT_VERSION) 2206 return EINVAL;/* wrong version of formatting prog */ 2207 2208 i = form_parms->nbps >> 7; 2209 if ((form_parms->nbps & 0x7f) || ffs(i) == 0 || 2210 i & ~(1 << (ffs(i)-1))) 2211 /* not a power-of-two multiple of 128 */ 2212 return EINVAL; 2213 2214 switch (form_parms->xfer_rate) { 2215 case 500 * 1024: 2216 fd->sc_type->rate = FDC_500KBPS; 2217 break; 2218 case 300 * 1024: 2219 fd->sc_type->rate = FDC_300KBPS; 2220 break; 2221 case 250 * 1024: 2222 fd->sc_type->rate = FDC_250KBPS; 2223 break; 2224 default: 2225 return EINVAL; 2226 } 2227 2228 if (form_parms->nspt > FD_MAX_NSEC || 2229 form_parms->fillbyte > 0xff || 2230 form_parms->interleave > 0xff) 2231 return EINVAL; 2232 fd->sc_type->sectrac = form_parms->nspt; 2233 if (form_parms->ntrk != 2 && form_parms->ntrk != 1) 2234 return EINVAL; 2235 fd->sc_type->heads = form_parms->ntrk; 2236 fd->sc_type->seccyl = form_parms->nspt * form_parms->ntrk; 2237 fd->sc_type->secsize = ffs(i)-1; 2238 fd->sc_type->gap2 = form_parms->gaplen; 2239 fd->sc_type->cylinders = form_parms->ncyl; 2240 fd->sc_type->size = fd->sc_type->seccyl * form_parms->ncyl * 2241 form_parms->nbps / DEV_BSIZE; 2242 fd->sc_type->step = form_parms->stepspercyl; 2243 fd->sc_type->fillbyte = form_parms->fillbyte; 2244 fd->sc_type->interleave = form_parms->interleave; 2245 return 0; 2246 2247 case FDIOCFORMAT_TRACK: 2248 if((flag & FWRITE) == 0) 2249 /* must be opened for writing */ 2250 return EBADF; 2251 form_cmd = (struct fdformat_cmd *)addr; 2252 if (form_cmd->formatcmd_version != FDFORMAT_VERSION) 2253 /* wrong version of formatting prog */ 2254 return EINVAL; 2255 2256 if (form_cmd->head >= fd->sc_type->heads || 2257 form_cmd->cylinder >= fd->sc_type->cylinders) { 2258 return EINVAL; 2259 } 2260 2261 fd_formb = malloc(sizeof(struct ne7_fd_formb), 2262 M_TEMP, M_NOWAIT); 2263 if (fd_formb == 0) 2264 return ENOMEM; 2265 2266 fd_formb->head = form_cmd->head; 2267 fd_formb->cyl = form_cmd->cylinder; 2268 fd_formb->transfer_rate = fd->sc_type->rate; 2269 fd_formb->fd_formb_secshift = fd->sc_type->secsize; 2270 fd_formb->fd_formb_nsecs = fd->sc_type->sectrac; 2271 fd_formb->fd_formb_gaplen = fd->sc_type->gap2; 2272 fd_formb->fd_formb_fillbyte = fd->sc_type->fillbyte; 2273 2274 memset(il, 0, sizeof il); 2275 for (j = 0, i = 1; i <= fd_formb->fd_formb_nsecs; i++) { 2276 while (il[(j % fd_formb->fd_formb_nsecs) + 1]) 2277 j++; 2278 il[(j % fd_formb->fd_formb_nsecs) + 1] = i; 2279 j += fd->sc_type->interleave; 2280 } 2281 for (i = 0; i < fd_formb->fd_formb_nsecs; i++) { 2282 fd_formb->fd_formb_cylno(i) = form_cmd->cylinder; 2283 fd_formb->fd_formb_headno(i) = form_cmd->head; 2284 fd_formb->fd_formb_secno(i) = il[i + 1]; 2285 fd_formb->fd_formb_secsize(i) = fd->sc_type->secsize; 2286 } 2287 2288 error = fdformat(dev, fd_formb, l->l_proc); 2289 free(fd_formb, M_TEMP); 2290 return error; 2291 2292 case FDIOCGETOPTS: /* get drive options */ 2293 *(int *)addr = fd->sc_opts; 2294 return 0; 2295 2296 case FDIOCSETOPTS: /* set drive options */ 2297 fd->sc_opts = *(int *)addr; 2298 return 0; 2299 2300 #ifdef FD_DEBUG 2301 case _IO('f', 100): 2302 fdc_wrfifo(fdc, NE7CMD_DUMPREG); 2303 fdcresult(fdc); 2304 printf("fdc: dumpreg(%d regs): <", fdc->sc_nstat); 2305 for (i = 0; i < fdc->sc_nstat; i++) 2306 printf(" 0x%x", fdc->sc_status[i]); 2307 printf(">\n"); 2308 return 0; 2309 2310 case _IOW('f', 101, int): 2311 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 2312 fdc->sc_cfg |= (*(int *)addr & CFG_THRHLD_MASK); 2313 fdconf(fdc); 2314 return 0; 2315 2316 case _IO('f', 102): 2317 fdc_wrfifo(fdc, NE7CMD_SENSEI); 2318 fdcresult(fdc); 2319 printf("fdc: sensei(%d regs): <", fdc->sc_nstat); 2320 for (i=0; i< fdc->sc_nstat; i++) 2321 printf(" 0x%x", fdc->sc_status[i]); 2322 printf(">\n"); 2323 return 0; 2324 #endif 2325 default: 2326 return ENOTTY; 2327 } 2328 2329 #ifdef DIAGNOSTIC 2330 panic("fdioctl: impossible"); 2331 #endif 2332 } 2333 2334 int 2335 fdformat(dev_t dev, struct ne7_fd_formb *finfo, struct proc *p) 2336 { 2337 int rv = 0; 2338 struct fd_softc *fd = device_lookup_private(&fd_cd, FDUNIT(dev)); 2339 struct fd_type *type = fd->sc_type; 2340 struct buf *bp; 2341 2342 /* set up a buffer header for fdstrategy() */ 2343 bp = getiobuf(NULL, false); 2344 if (bp == NULL) 2345 return ENOBUFS; 2346 2347 bp->b_vp = NULL; 2348 bp->b_cflags = BC_BUSY; 2349 bp->b_flags = B_PHYS | B_FORMAT; 2350 bp->b_proc = p; 2351 bp->b_dev = dev; 2352 2353 /* 2354 * Calculate a fake blkno, so fdstrategy() would initiate a 2355 * seek to the requested cylinder. 2356 */ 2357 bp->b_blkno = ((finfo->cyl * (type->sectrac * type->heads) 2358 + finfo->head * type->sectrac) * FD_BSIZE(fd)) 2359 / DEV_BSIZE; 2360 2361 bp->b_bcount = sizeof(struct fd_idfield_data) * finfo->fd_formb_nsecs; 2362 bp->b_data = (void *)finfo; 2363 2364 #ifdef FD_DEBUG 2365 if (fdc_debug) { 2366 int i; 2367 2368 printf("fdformat: blkno 0x%llx count %d\n", 2369 (unsigned long long)bp->b_blkno, bp->b_bcount); 2370 2371 printf("\tcyl:\t%d\n", finfo->cyl); 2372 printf("\thead:\t%d\n", finfo->head); 2373 printf("\tnsecs:\t%d\n", finfo->fd_formb_nsecs); 2374 printf("\tsshft:\t%d\n", finfo->fd_formb_secshift); 2375 printf("\tgaplen:\t%d\n", finfo->fd_formb_gaplen); 2376 printf("\ttrack data:"); 2377 for (i = 0; i < finfo->fd_formb_nsecs; i++) { 2378 printf(" [c%d h%d s%d]", 2379 finfo->fd_formb_cylno(i), 2380 finfo->fd_formb_headno(i), 2381 finfo->fd_formb_secno(i) ); 2382 if (finfo->fd_formb_secsize(i) != 2) 2383 printf("<sz:%d>", finfo->fd_formb_secsize(i)); 2384 } 2385 printf("\n"); 2386 } 2387 #endif 2388 2389 /* now do the format */ 2390 fdstrategy(bp); 2391 2392 /* ...and wait for it to complete */ 2393 rv = biowait(bp); 2394 putiobuf(bp); 2395 return rv; 2396 } 2397 2398 void 2399 fdgetdisklabel(dev_t dev) 2400 { 2401 int i; 2402 struct fd_softc *fd = device_lookup_private(&fd_cd, FDUNIT(dev)); 2403 struct disklabel *lp = fd->sc_dk.dk_label; 2404 struct cpu_disklabel *clp = fd->sc_dk.dk_cpulabel; 2405 2406 memset(lp, 0, sizeof(struct disklabel)); 2407 memset(lp, 0, sizeof(struct cpu_disklabel)); 2408 2409 lp->d_type = DTYPE_FLOPPY; 2410 lp->d_secsize = FD_BSIZE(fd); 2411 lp->d_secpercyl = fd->sc_type->seccyl; 2412 lp->d_nsectors = fd->sc_type->sectrac; 2413 lp->d_ncylinders = fd->sc_type->cylinders; 2414 lp->d_ntracks = fd->sc_type->heads; /* Go figure... */ 2415 lp->d_secperunit = lp->d_secpercyl * lp->d_ncylinders; 2416 lp->d_rpm = 300; /* XXX like it matters... */ 2417 2418 strncpy(lp->d_typename, "floppy disk", sizeof(lp->d_typename)); 2419 strncpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); 2420 lp->d_interleave = 1; 2421 lp->d_flags = D_REMOVABLE; 2422 2423 lp->d_partitions[RAW_PART].p_offset = 0; 2424 lp->d_partitions[RAW_PART].p_size = lp->d_secpercyl * lp->d_ncylinders; 2425 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 2426 lp->d_npartitions = RAW_PART + 1; 2427 2428 lp->d_magic = DISKMAGIC; 2429 lp->d_magic2 = DISKMAGIC; 2430 lp->d_checksum = dkcksum(lp); 2431 2432 /* 2433 * Call the generic disklabel extraction routine. If there's 2434 * not a label there, fake it. 2435 */ 2436 if (readdisklabel(dev, fdstrategy, lp, clp) != NULL) { 2437 strncpy(lp->d_packname, "default label", 2438 sizeof(lp->d_packname)); 2439 /* 2440 * Reset the partition info; it might have gotten 2441 * trashed in readdisklabel(). 2442 * 2443 * XXX Why do we have to do this? readdisklabel() 2444 * should be safe... 2445 */ 2446 for (i = 0; i < MAXPARTITIONS; ++i) { 2447 lp->d_partitions[i].p_offset = 0; 2448 if (i == RAW_PART) { 2449 lp->d_partitions[i].p_size = 2450 lp->d_secpercyl * lp->d_ncylinders; 2451 lp->d_partitions[i].p_fstype = FS_BSDFFS; 2452 } else { 2453 lp->d_partitions[i].p_size = 0; 2454 lp->d_partitions[i].p_fstype = FS_UNUSED; 2455 } 2456 } 2457 lp->d_npartitions = RAW_PART + 1; 2458 } 2459 } 2460 2461 void 2462 fd_do_eject(struct fd_softc *fd) 2463 { 2464 struct fdc_softc *fdc = (void *)device_parent(&fd->sc_dv); 2465 2466 #ifdef SUN4 2467 if (CPU_ISSUN4C) { 2468 auxregbisc(AUXIO4C_FDS, AUXIO4C_FEJ); 2469 delay(10); 2470 auxregbisc(AUXIO4C_FEJ, AUXIO4C_FDS); 2471 return; 2472 } 2473 if (CPU_ISSUN4M && (fdc->sc_flags & FDC_82077) != 0) { 2474 #endif 2475 bus_space_tag_t t = fdc->sc_bustag; 2476 bus_space_handle_t h = fdc->sc_handle; 2477 uint8_t dor = FDO_FRST | FDO_FDMAEN | FDO_MOEN(0); 2478 2479 bus_space_write_1(t, h, fdc->sc_reg_dor, dor | FDO_EJ); 2480 delay(10); 2481 bus_space_write_1(t, h, fdc->sc_reg_dor, FDO_FRST | FDO_DS); 2482 return; 2483 #ifdef SUN4 2484 } 2485 #endif 2486 } 2487 2488 /* ARGSUSED */ 2489 void 2490 fd_mountroot_hook(struct device *dev) 2491 { 2492 int c; 2493 2494 fd_do_eject((struct fd_softc *)dev); 2495 printf("Insert filesystem floppy and press return."); 2496 for (;;) { 2497 c = cngetc(); 2498 if ((c == '\r') || (c == '\n')) { 2499 printf("\n"); 2500 break; 2501 } 2502 } 2503 } 2504 2505 #ifdef MEMORY_DISK_HOOKS 2506 2507 #define FDMICROROOTSIZE ((2*18*80) << DEV_BSHIFT) 2508 2509 int 2510 fd_read_md_image(size_t *sizep, void **addrp) 2511 { 2512 struct buf buf, *bp = &buf; 2513 dev_t dev; 2514 off_t offset; 2515 char *addr; 2516 2517 dev = makedev(54,0); /* XXX */ 2518 2519 addr = malloc(FDMICROROOTSIZE, M_DEVBUF, M_WAITOK); 2520 *addrp = addr; 2521 2522 if (fdopen(dev, 0, S_IFCHR, NULL)) 2523 panic("fd: mountroot: fdopen"); 2524 2525 offset = 0; 2526 2527 for (;;) { 2528 bp->b_dev = dev; 2529 bp->b_error = 0; 2530 bp->b_resid = 0; 2531 bp->b_proc = NULL; 2532 bp->b_cflags = BC_BUSY; 2533 bp->b_flags = B_PHYS | B_RAW | B_READ; 2534 bp->b_blkno = btodb(offset); 2535 bp->b_bcount = DEV_BSIZE; 2536 bp->b_data = addr; 2537 fdstrategy(bp); 2538 biowait(bp); 2539 if (bp->b_error) 2540 panic("fd: mountroot: fdread error %d", bp->b_error); 2541 2542 if (bp->b_resid != 0) 2543 break; 2544 2545 addr += DEV_BSIZE; 2546 offset += DEV_BSIZE; 2547 if (offset + DEV_BSIZE > FDMICROROOTSIZE) 2548 break; 2549 } 2550 (void)fdclose(dev, 0, S_IFCHR, NULL); 2551 *sizep = offset; 2552 fd_do_eject(device_lookup_private(&fd_cd, FDUNIT(dev))); 2553 return 0; 2554 } 2555 #endif /* MEMORY_DISK_HOOKS */ 2556 2557 static void 2558 fd_set_properties(struct fd_softc *fd) 2559 { 2560 prop_dictionary_t disk_info, odisk_info, geom; 2561 struct fd_type *fdt; 2562 int secsize; 2563 2564 fdt = fd->sc_deftype; 2565 2566 disk_info = prop_dictionary_create(); 2567 2568 geom = prop_dictionary_create(); 2569 2570 prop_dictionary_set_uint64(geom, "sectors-per-unit", 2571 fdt->size); 2572 2573 switch (fdt->secsize) { 2574 case 2: 2575 secsize = 512; 2576 break; 2577 case 3: 2578 secsize = 1024; 2579 break; 2580 default: 2581 secsize = 0; 2582 } 2583 2584 prop_dictionary_set_uint32(geom, "sector-size", 2585 secsize); 2586 2587 prop_dictionary_set_uint16(geom, "sectors-per-track", 2588 fdt->sectrac); 2589 2590 prop_dictionary_set_uint16(geom, "tracks-per-cylinder", 2591 fdt->heads); 2592 2593 prop_dictionary_set_uint64(geom, "cylinders-per-unit", 2594 fdt->cylinders); 2595 2596 prop_dictionary_set(disk_info, "geometry", geom); 2597 prop_object_release(geom); 2598 2599 prop_dictionary_set(device_properties(&fd->sc_dv), 2600 "disk-info", disk_info); 2601 2602 /* 2603 * Don't release disk_info here; we keep a reference to it. 2604 * disk_detach() will release it when we go away. 2605 */ 2606 2607 odisk_info = fd->sc_dk.dk_info; 2608 fd->sc_dk.dk_info = disk_info; 2609 if (odisk_info) 2610 prop_object_release(odisk_info); 2611 } 2612
Indexes created Tue Sep 30 11:09:46 GMT 2025