fdc.c revision 1.39
1 /* $NetBSD: fdc.c,v 1.39 2014/03/16 05:20:26 dholland 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 1.39 2014/03/16 05:20:26 dholland 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 <dev/sbus/sbusvar.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 device_t 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(device_t, cfdata_t, void*); 234 int fdcmatch_obio(device_t, cfdata_t, void *); 235 void fdcattach_mainbus(device_t, device_t, void *); 236 void fdcattach_obio(device_t, device_t, void *); 237 #elif SUN4U 238 int fdcmatch_sbus(device_t, cfdata_t, void *); 239 int fdcmatch_ebus(device_t, cfdata_t, void *); 240 void fdcattach_sbus(device_t, device_t, void *); 241 void fdcattach_ebus(device_t, device_t, void *); 242 #endif 243 244 int fdcattach(struct fdc_softc *, int); 245 246 #ifdef SUN4 247 CFATTACH_DECL_NEW(fdc_mainbus, sizeof(struct fdc_softc), 248 fdcmatch_mainbus, fdcattach_mainbus, NULL, NULL); 249 250 CFATTACH_DECL_NEW(fdc_obio, sizeof(struct fdc_softc), 251 fdcmatch_obio, fdcattach_obio, NULL, NULL); 252 #elif SUN4U 253 CFATTACH_DECL_NEW(fdc_sbus, sizeof(struct fdc_softc), 254 fdcmatch_sbus, fdcattach_sbus, NULL, NULL); 255 256 CFATTACH_DECL_NEW(fdc_ebus, sizeof(struct fdc_softc), 257 fdcmatch_ebus, fdcattach_ebus, NULL, NULL); 258 #endif 259 260 static 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 device_t sc_dev; /* 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(device_t, cfdata_t, void *); 325 void fdattach(device_t, device_t, void *); 326 bool fdshutdown(device_t, int); 327 bool fdsuspend(device_t, const pmf_qual_t *); 328 329 CFATTACH_DECL_NEW(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 .d_open = fdopen, 343 .d_close = fdclose, 344 .d_strategy = fdstrategy, 345 .d_ioctl = fdioctl, 346 .d_dump = nodump, 347 .d_psize = nosize, 348 .d_flag = D_DISK 349 }; 350 351 const struct cdevsw fd_cdevsw = { 352 .d_open = fdopen, 353 .d_close = fdclose, 354 .d_read = fdread, 355 .d_write = fdwrite, 356 .d_ioctl = fdioctl, 357 .d_stop = nostop, 358 .d_tty = notty, 359 .d_poll = nopoll, 360 .d_mmap = nommap, 361 .d_kqfilter = nokqfilter, 362 .d_flag = D_DISK 363 }; 364 365 void fdgetdisklabel(dev_t); 366 int fd_get_parms(struct fd_softc *); 367 void fdstrategy(struct buf *); 368 void fdstart(struct fd_softc *); 369 int fdprint(void *, const char *); 370 371 struct dkdriver fddkdriver = { fdstrategy, NULL }; 372 373 struct fd_type *fd_nvtotype(char *, int, int); 374 void fd_set_motor(struct fdc_softc *); 375 void fd_motor_off(void *); 376 void fd_motor_on(void *); 377 int fdcresult(struct fdc_softc *); 378 int fdc_wrfifo(struct fdc_softc *, uint8_t); 379 void fdcstart(struct fdc_softc *); 380 void fdcstatus(struct fdc_softc *, const char *); 381 void fdc_reset(struct fdc_softc *); 382 int fdc_diskchange(struct fdc_softc *); 383 void fdctimeout(void *); 384 void fdcpseudointr(void *); 385 int fdc_c_hwintr(void *); 386 void fdchwintr(void); 387 void fdcswintr(void *); 388 int fdcstate(struct fdc_softc *); 389 void fdcretry(struct fdc_softc *); 390 void fdfinish(struct fd_softc *, struct buf *); 391 int fdformat(dev_t, struct ne7_fd_formb *, struct proc *); 392 void fd_do_eject(struct fd_softc *); 393 void fd_mountroot_hook(device_t ); 394 static int fdconf(struct fdc_softc *); 395 static void establish_chip_type( 396 struct fdc_softc *, 397 bus_space_tag_t, 398 bus_addr_t, 399 bus_size_t, 400 bus_space_handle_t); 401 static void fd_set_geometry(struct fd_softc *); 402 403 #ifdef MEMORY_DISK_HOOKS 404 int fd_read_md_image(size_t *, void **); 405 #endif 406 407 #ifdef SUN4 408 #define OBP_FDNAME (CPU_ISSUN4M ? "SUNW,fdtwo" : "fd") 409 410 int 411 fdcmatch_mainbus(device_t parent, cfdata_t match, void *aux) 412 { 413 struct mainbus_attach_args *ma = aux; 414 415 /* 416 * Floppy controller is on mainbus on sun4c. 417 */ 418 if (!CPU_ISSUN4C) 419 return 0; 420 421 /* sun4c PROMs call the controller "fd" */ 422 if (strcmp("fd", ma->ma_name) != 0) 423 return 0; 424 425 return bus_space_probe(ma->ma_bustag, 426 ma->ma_paddr, 427 1, /* probe size */ 428 0, /* offset */ 429 0, /* flags */ 430 NULL, NULL); 431 } 432 433 int 434 fdcmatch_obio(device_t parent, cfdata_t match, void *aux) 435 { 436 union obio_attach_args *uoba = aux; 437 struct sbus_attach_args *sa; 438 439 /* 440 * Floppy controller is on obio on sun4m. 441 */ 442 if (uoba->uoba_isobio4 != 0) 443 return 0; 444 445 sa = &uoba->uoba_sbus; 446 447 /* sun4m PROMs call the controller "SUNW,fdtwo" */ 448 if (strcmp("SUNW,fdtwo", sa->sa_name) != 0) 449 return 0; 450 451 return bus_space_probe(sa->sa_bustag, 452 sbus_bus_addr(sa->sa_bustag, 453 sa->sa_slot, sa->sa_offset), 454 1, /* probe size */ 455 0, /* offset */ 456 0, /* flags */ 457 NULL, NULL); 458 } 459 460 #elif SUN4U 461 462 int 463 fdcmatch_sbus(device_t parent, cfdata_t match, void *aux) 464 { 465 struct sbus_attach_args *sa = aux; 466 467 return strcmp("SUNW,fdtwo", sa->sa_name) == 0; 468 } 469 470 int 471 fdcmatch_ebus(device_t parent, cfdata_t match, void *aux) 472 { 473 struct ebus_attach_args *ea = aux; 474 475 return strcmp("fdthree", ea->ea_name) == 0; 476 } 477 #endif 478 479 static void 480 establish_chip_type(struct fdc_softc *fdc, 481 bus_space_tag_t tag, bus_addr_t addr, bus_size_t size, 482 bus_space_handle_t handle) 483 { 484 uint8_t v; 485 486 /* 487 * This hack from Chris Torek: apparently DOR really 488 * addresses MSR/DRS on a 82072. 489 * We used to rely on the VERSION command to tell the 490 * difference (which did not work). 491 */ 492 493 /* First, check the size of the register bank */ 494 if (size < 8) 495 /* It isn't a 82077 */ 496 return; 497 498 #ifdef SUN4 499 /* Then probe the DOR register offset */ 500 if (bus_space_probe(tag, addr, 501 1, /* probe size */ 502 FDREG77_DOR, /* offset */ 503 0, /* flags */ 504 NULL, NULL) == 0) { 505 506 /* It isn't a 82077 */ 507 return; 508 } 509 #endif 510 511 v = bus_space_read_1(tag, handle, FDREG77_DOR); 512 if (v == NE7_RQM) { 513 /* 514 * Value in DOR looks like it's really MSR 515 */ 516 bus_space_write_1(tag, handle, FDREG77_DOR, FDC_250KBPS); 517 v = bus_space_read_1(tag, handle, FDREG77_DOR); 518 if (v == NE7_RQM) { 519 /* 520 * The value in the DOR didn't stick; 521 * it isn't a 82077 522 */ 523 return; 524 } 525 } 526 527 fdc->sc_flags |= FDC_82077; 528 } 529 530 /* 531 * Arguments passed between fdcattach and fdprobe. 532 */ 533 struct fdc_attach_args { 534 int fa_drive; 535 struct fd_type *fa_deftype; 536 }; 537 538 /* 539 * Print the location of a disk drive (called just before attaching the 540 * the drive). If `fdc' is not NULL, the drive was found but was not 541 * in the system config file; print the drive name as well. 542 * Return QUIET (config_find ignores this if the device was configured) to 543 * avoid printing `fdN not configured' messages. 544 */ 545 int 546 fdprint(void *aux, const char *fdc) 547 { 548 register struct fdc_attach_args *fa = aux; 549 550 if (!fdc) 551 aprint_normal(" drive %d", fa->fa_drive); 552 return QUIET; 553 } 554 555 /* 556 * Configure several parameters and features on the FDC. 557 * Return 0 on success. 558 */ 559 static int 560 fdconf(struct fdc_softc *fdc) 561 { 562 int vroom; 563 564 if (fdc_wrfifo(fdc, NE7CMD_DUMPREG) || fdcresult(fdc) != 10) 565 return -1; 566 567 /* 568 * dumpreg[7] seems to be a motor-off timeout; set it to whatever 569 * the PROM thinks is appropriate. 570 */ 571 if ((vroom = fdc->sc_status[7]) == 0) 572 vroom = 0x64; 573 574 /* Configure controller to use FIFO and Implied Seek */ 575 if (fdc_wrfifo(fdc, NE7CMD_CFG) != 0) 576 return -1; 577 if (fdc_wrfifo(fdc, vroom) != 0) 578 return -1; 579 if (fdc_wrfifo(fdc, fdc->sc_cfg) != 0) 580 return -1; 581 if (fdc_wrfifo(fdc, 0) != 0) /* PRETRK */ 582 return -1; 583 /* No result phase for the NE7CMD_CFG command */ 584 585 if ((fdc->sc_flags & FDC_82077) != 0) { 586 /* Lock configuration across soft resets. */ 587 if (fdc_wrfifo(fdc, NE7CMD_LOCK | CFG_LOCK) != 0 || 588 fdcresult(fdc) != 1) { 589 #ifdef DEBUG 590 printf("fdconf: CFGLOCK failed"); 591 #endif 592 return -1; 593 } 594 } 595 596 return 0; 597 #if 0 598 if (fdc_wrfifo(fdc, NE7CMD_VERSION) == 0 && 599 fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x90) { 600 if (fdc_debug) 601 printf("[version cmd]"); 602 } 603 #endif 604 } 605 606 #ifdef SUN4 607 void 608 fdcattach_mainbus(device_t parent, device_t self, void *aux) 609 { 610 struct fdc_softc *fdc = device_private(self); 611 struct mainbus_attach_args *ma = aux; 612 613 fdc->sc_dev = self; 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 aprint_error_dev(self, "cannot map registers\n"); 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(device_t parent, device_t self, void *aux) 638 { 639 struct fdc_softc *fdc = device_private(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_dev = self; 649 fdc->sc_bustag = sa->sa_bustag; 650 651 if (sbus_bus_map(sa->sa_bustag, 652 sa->sa_slot, sa->sa_offset, sa->sa_size, 653 BUS_SPACE_MAP_LINEAR, &fdc->sc_handle) != 0) { 654 aprint_error_dev(self, "cannot map control registers\n"); 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 printf(": 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(device_t parent, device_t self, void *aux) 677 { 678 struct fdc_softc *fdc = device_private(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_dev = self; 692 fdc->sc_bustag = sa->sa_bustag; 693 694 if (bus_space_map(sa->sa_bustag, BUS_ADDR(sa->sa_slot, sa->sa_offset), 695 sa->sa_size, 0, &fdc->sc_handle) != 0) { 696 printf(": cannot map control registers\n"); 697 return; 698 } 699 700 establish_chip_type(fdc, 701 sa->sa_bustag, 702 BUS_ADDR(sa->sa_slot, sa->sa_offset), 703 sa->sa_size, 704 fdc->sc_handle); 705 706 if (strcmp(prom_getpropstring(sa->sa_node, "status"), "disabled") == 0) { 707 printf(": no drives attached\n"); 708 return; 709 } 710 711 if (prom_getproplen(sa->sa_node, "manual") >= 0) 712 fdc->sc_flags |= FDC_NOEJECT; 713 714 715 if (fdcattach(fdc, sa->sa_pri) != 0) 716 bus_space_unmap(sa->sa_bustag, fdc->sc_handle, sa->sa_size); 717 } 718 719 void 720 fdcattach_ebus(device_t parent, device_t self, void *aux) 721 { 722 struct fdc_softc *fdc = device_private(self); 723 struct ebus_attach_args *ea = aux; 724 int map_vaddr; 725 726 if (ea->ea_nintr == 0) { 727 printf(": no interrupt line configured\n"); 728 return; 729 } 730 731 if (ea->ea_nreg < 3) { 732 printf(": expected 3 registers, only got %d\n", 733 ea->ea_nreg); 734 return; 735 } 736 737 fdc->sc_dev = self; 738 fdc->sc_bustag = ea->ea_bustag; 739 740 if (ea->ea_nvaddr > 0) { 741 sparc_promaddr_to_handle(ea->ea_bustag, 742 ea->ea_vaddr[0], &fdc->sc_handle); 743 map_vaddr = 1; 744 } else if (bus_space_map(fdc->sc_bustag, 745 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 746 ea->ea_reg[0].size, 0, &fdc->sc_handle) == 0) { 747 map_vaddr = 0; 748 } else { 749 printf(": can't map control registers\n"); 750 return; 751 } 752 753 establish_chip_type(fdc, 754 fdc->sc_bustag, 755 map_vaddr ? ea->ea_vaddr[0] : 756 EBUS_ADDR_FROM_REG(&ea->ea_reg[0]), 757 ea->ea_reg[0].size, 758 fdc->sc_handle); 759 760 fdc->sc_flags |= FDC_EBUS; 761 762 if (prom_getproplen(ea->ea_node, "manual") >= 0) 763 fdc->sc_flags |= FDC_NOEJECT; 764 765 if (fdcattach(fdc, ea->ea_intr[0]) != 0) 766 if (map_vaddr == 0) 767 bus_space_unmap(ea->ea_bustag, fdc->sc_handle, 768 ea->ea_reg[0].size); 769 } 770 #endif 771 772 int 773 fdcattach(struct fdc_softc *fdc, int pri) 774 { 775 struct fdc_attach_args fa; 776 int drive_attached; 777 char code; 778 779 callout_init(&fdc->sc_timo_ch, 0); 780 callout_init(&fdc->sc_intr_ch, 0); 781 782 fdc->sc_state = DEVIDLE; 783 fdc->sc_itask = FDC_ITASK_NONE; 784 fdc->sc_istatus = FDC_ISTATUS_NONE; 785 fdc->sc_flags |= FDC_EIS; 786 TAILQ_INIT(&fdc->sc_drives); 787 788 if ((fdc->sc_flags & FDC_82077) != 0) { 789 fdc->sc_reg_msr = FDREG77_MSR; 790 fdc->sc_reg_fifo = FDREG77_FIFO; 791 fdc->sc_reg_dor = FDREG77_DOR; 792 fdc->sc_reg_dir = FDREG77_DIR; 793 code = '7'; 794 fdc->sc_flags |= FDC_NEEDMOTORWAIT; 795 } else { 796 fdc->sc_reg_msr = FDREG72_MSR; 797 fdc->sc_reg_fifo = FDREG72_FIFO; 798 fdc->sc_reg_dor = 0; 799 code = '2'; 800 } 801 802 /* 803 * Configure controller; enable FIFO, Implied seek, no POLL mode?. 804 * Note: CFG_EFIFO is active-low, initial threshold value: 8 805 */ 806 fdc->sc_cfg = CFG_EIS|/*CFG_EFIFO|*/CFG_POLL|(8 & CFG_THRHLD_MASK); 807 if (fdconf(fdc) != 0) { 808 printf(": no drives attached\n"); 809 return -1; 810 } 811 812 fdc->sc_sicookie = softint_establish(SOFTINT_BIO, fdcswintr, fdc); 813 if (fdc->sc_sicookie == NULL) { 814 aprint_normal("\n"); 815 aprint_error_dev(fdc->sc_dev, 816 "cannot register soft interrupt handler\n"); 817 callout_stop(&fdc->sc_timo_ch); 818 callout_stop(&fdc->sc_intr_ch); 819 return -1; 820 } 821 #ifdef SUN4 822 printf(" softpri %d: chip 8207%c\n", IPL_SOFTFDC, code); 823 #elif SUN4U 824 printf(" softpri %d: chip 8207%c", PIL_FDSOFT, code); 825 if (fdc->sc_flags & FDC_NOEJECT) 826 printf(": manual eject"); 827 printf("\n"); 828 #endif 829 830 #ifdef SUN4 831 fdciop = &fdc->sc_io; 832 if (bus_intr_establish2(fdc->sc_bustag, pri, 0, 833 fdc_c_hwintr, fdc, fdchwintr) == NULL) { 834 #elif SUN4U 835 if (bus_intr_establish(fdc->sc_bustag, pri, IPL_BIO, 836 fdc_c_hwintr, fdc) == NULL) { 837 #endif 838 aprint_normal("\n"); 839 aprint_error_dev(fdc->sc_dev, 840 "cannot register interrupt handler\n"); 841 callout_stop(&fdc->sc_timo_ch); 842 callout_stop(&fdc->sc_intr_ch); 843 softint_disestablish(fdc->sc_sicookie); 844 return -1; 845 } 846 847 evcnt_attach_dynamic(&fdc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 848 device_xname(fdc->sc_dev), "intr"); 849 850 /* physical limit: four drives per controller. */ 851 drive_attached = 0; 852 for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) { 853 fa.fa_deftype = NULL; /* unknown */ 854 fa.fa_deftype = &fd_types[0]; /* XXX */ 855 if (config_found(fdc->sc_dev, (void *)&fa, fdprint) != NULL) 856 drive_attached = 1; 857 } 858 859 if (drive_attached == 0) { 860 /* XXX - dis-establish interrupts here */ 861 /* return -1; */ 862 } 863 864 return 0; 865 } 866 867 int 868 fdmatch(device_t parent, cfdata_t match, void *aux) 869 { 870 struct fdc_softc *fdc = device_private(parent); 871 bus_space_tag_t t = fdc->sc_bustag; 872 bus_space_handle_t h = fdc->sc_handle; 873 struct fdc_attach_args *fa = aux; 874 int drive = fa->fa_drive; 875 int n, ok; 876 877 if (drive > 0) 878 /* XXX - for now, punt on more than one drive */ 879 return 0; 880 881 if ((fdc->sc_flags & FDC_82077) != 0) { 882 /* select drive and turn on motor */ 883 bus_space_write_1(t, h, fdc->sc_reg_dor, 884 drive | FDO_FRST | FDO_MOEN(drive)); 885 /* wait for motor to spin up */ 886 delay(250000); 887 #ifdef SUN4 888 } else { 889 auxregbisc(AUXIO4C_FDS, 0); 890 #endif 891 } 892 fdc->sc_nstat = 0; 893 fdc_wrfifo(fdc, NE7CMD_RECAL); 894 fdc_wrfifo(fdc, drive); 895 896 /* Wait for recalibration to complete */ 897 for (n = 0; n < 10000; n++) { 898 uint8_t v; 899 900 delay(1000); 901 v = bus_space_read_1(t, h, fdc->sc_reg_msr); 902 if ((v & (NE7_RQM|NE7_DIO|NE7_CB)) == NE7_RQM) { 903 /* wait a bit longer till device *really* is ready */ 904 delay(100000); 905 if (fdc_wrfifo(fdc, NE7CMD_SENSEI)) 906 break; 907 if (fdcresult(fdc) == 1 && fdc->sc_status[0] == 0x80) 908 /* 909 * Got `invalid command'; we interpret it 910 * to mean that the re-calibrate hasn't in 911 * fact finished yet 912 */ 913 continue; 914 break; 915 } 916 } 917 n = fdc->sc_nstat; 918 #ifdef FD_DEBUG 919 if (fdc_debug) { 920 int i; 921 printf("fdprobe: %d stati:", n); 922 for (i = 0; i < n; i++) 923 printf(" 0x%x", fdc->sc_status[i]); 924 printf("\n"); 925 } 926 #endif 927 ok = (n == 2 && (fdc->sc_status[0] & 0xf8) == 0x20) ? 1 : 0; 928 929 /* turn off motor */ 930 if ((fdc->sc_flags & FDC_82077) != 0) { 931 /* deselect drive and turn motor off */ 932 bus_space_write_1(t, h, fdc->sc_reg_dor, FDO_FRST | FDO_DS); 933 #ifdef SUN4 934 } else { 935 auxregbisc(0, AUXIO4C_FDS); 936 #endif 937 } 938 939 return ok; 940 } 941 942 /* 943 * Controller is working, and drive responded. Attach it. 944 */ 945 void 946 fdattach(device_t parent, device_t self, void *aux) 947 { 948 struct fdc_softc *fdc = device_private(parent); 949 struct fd_softc *fd = device_private(self); 950 struct fdc_attach_args *fa = aux; 951 struct fd_type *type = fa->fa_deftype; 952 int drive = fa->fa_drive; 953 954 fd->sc_dev = self; 955 callout_init(&fd->sc_motoron_ch, 0); 956 callout_init(&fd->sc_motoroff_ch, 0); 957 958 /* XXX Allow `flags' to override device type? */ 959 960 if (type) 961 printf(": %s %d cyl, %d head, %d sec\n", type->name, 962 type->cylinders, type->heads, type->sectrac); 963 else 964 printf(": density unknown\n"); 965 966 bufq_alloc(&fd->sc_q, "disksort", BUFQ_SORT_CYLINDER); 967 fd->sc_cylin = -1; 968 fd->sc_drive = drive; 969 fd->sc_deftype = type; 970 fdc->sc_fd[drive] = fd; 971 972 fdc_wrfifo(fdc, NE7CMD_SPECIFY); 973 fdc_wrfifo(fdc, type->steprate); 974 /* XXX head load time == 6ms */ 975 fdc_wrfifo(fdc, 6 | NE7_SPECIFY_NODMA); 976 977 /* 978 * Initialize and attach the disk structure. 979 */ 980 disk_init(&fd->sc_dk, device_xname(fd->sc_dev), &fddkdriver); 981 disk_attach(&fd->sc_dk); 982 983 /* 984 * Establish a mountroot_hook anyway in case we booted 985 * with RB_ASKNAME and get selected as the boot device. 986 */ 987 mountroothook_establish(fd_mountroot_hook, fd->sc_dev); 988 989 fd_set_geometry(fd); 990 991 /* Make sure the drive motor gets turned off at shutdown time. */ 992 if (!pmf_device_register1(self, fdsuspend, NULL, fdshutdown)) 993 aprint_error_dev(self, "couldn't establish power handler\n"); 994 } 995 996 bool fdshutdown(device_t self, int how) 997 { 998 struct fd_softc *fd = device_private(self); 999 1000 fd_motor_off(fd); 1001 return true; 1002 } 1003 1004 bool fdsuspend(device_t self, const pmf_qual_t *qual) 1005 { 1006 1007 return fdshutdown(self, boothowto); 1008 } 1009 1010 1011 static inline struct fd_type * 1012 fd_dev_to_type(struct fd_softc *fd, dev_t dev) 1013 { 1014 int type = FDTYPE(dev); 1015 1016 if (type > (sizeof(fd_types) / sizeof(fd_types[0]))) 1017 return NULL; 1018 return type ? &fd_types[type - 1] : fd->sc_deftype; 1019 } 1020 1021 void 1022 fdstrategy(struct buf *bp) 1023 { 1024 struct fd_softc *fd; 1025 int sz; 1026 int s; 1027 1028 /* Valid unit, controller, and request? */ 1029 fd = device_lookup_private(&fd_cd, FDUNIT(bp->b_dev)); 1030 if (fd == NULL) { 1031 bp->b_error = EINVAL; 1032 goto done; 1033 } 1034 1035 if (bp->b_blkno < 0 || 1036 (((bp->b_bcount % FD_BSIZE(fd)) != 0 || 1037 (bp->b_blkno * DEV_BSIZE) % FD_BSIZE(fd) != 0) && 1038 (bp->b_flags & B_FORMAT) == 0)) { 1039 bp->b_error = EINVAL; 1040 goto done; 1041 } 1042 1043 /* If it's a null transfer, return immediately. */ 1044 if (bp->b_bcount == 0) 1045 goto done; 1046 1047 sz = howmany(bp->b_bcount, DEV_BSIZE); 1048 1049 if (bp->b_blkno + sz > (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd)) { 1050 sz = (fd->sc_type->size * DEV_BSIZE) / FD_BSIZE(fd) 1051 - bp->b_blkno; 1052 if (sz == 0) { 1053 /* If exactly at end of disk, return EOF. */ 1054 bp->b_resid = bp->b_bcount; 1055 goto done; 1056 } 1057 if (sz < 0) { 1058 /* If past end of disk, return EINVAL. */ 1059 bp->b_error = EINVAL; 1060 goto done; 1061 } 1062 /* Otherwise, truncate request. */ 1063 bp->b_bcount = sz << DEV_BSHIFT; 1064 } 1065 1066 bp->b_rawblkno = bp->b_blkno; 1067 bp->b_cylinder = (bp->b_blkno * DEV_BSIZE) / 1068 (FD_BSIZE(fd) * fd->sc_type->seccyl); 1069 1070 #ifdef FD_DEBUG 1071 if (fdc_debug > 1) 1072 printf("fdstrategy: b_blkno %lld b_bcount %d blkno %lld cylin %d sz %d\n", 1073 (long long)bp->b_blkno, bp->b_bcount, 1074 (long long)fd->sc_blkno, bp->b_cylinder, sz); 1075 #endif 1076 1077 /* Queue transfer on drive, activate drive and controller if idle. */ 1078 s = splbio(); 1079 bufq_put(fd->sc_q, bp); 1080 callout_stop(&fd->sc_motoroff_ch); /* a good idea */ 1081 if (fd->sc_active == 0) 1082 fdstart(fd); 1083 #ifdef DIAGNOSTIC 1084 else { 1085 struct fdc_softc *fdc = device_private( 1086 device_parent(fd->sc_dev)); 1087 if (fdc->sc_state == DEVIDLE) { 1088 printf("fdstrategy: controller inactive\n"); 1089 fdcstart(fdc); 1090 } 1091 } 1092 #endif 1093 splx(s); 1094 return; 1095 1096 done: 1097 /* Toss transfer; we're done early. */ 1098 biodone(bp); 1099 } 1100 1101 void 1102 fdstart(struct fd_softc *fd) 1103 { 1104 struct fdc_softc *fdc = device_private(device_parent(fd->sc_dev)); 1105 int active = fdc->sc_drives.tqh_first != 0; 1106 1107 /* Link into controller queue. */ 1108 fd->sc_active = 1; 1109 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 1110 1111 /* If controller not already active, start it. */ 1112 if (!active) 1113 fdcstart(fdc); 1114 } 1115 1116 void 1117 fdfinish(struct fd_softc *fd, struct buf *bp) 1118 { 1119 struct fdc_softc *fdc = device_private(device_parent(fd->sc_dev)); 1120 1121 /* 1122 * Move this drive to the end of the queue to give others a `fair' 1123 * chance. We only force a switch if N operations are completed while 1124 * another drive is waiting to be serviced, since there is a long motor 1125 * startup delay whenever we switch. 1126 */ 1127 (void)bufq_get(fd->sc_q); 1128 if (fd->sc_drivechain.tqe_next && ++fd->sc_ops >= 8) { 1129 fd->sc_ops = 0; 1130 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1131 if (bufq_peek(fd->sc_q) != NULL) { 1132 TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); 1133 } else 1134 fd->sc_active = 0; 1135 } 1136 bp->b_resid = fd->sc_bcount; 1137 fd->sc_skip = 0; 1138 1139 biodone(bp); 1140 /* turn off motor 5s from now */ 1141 callout_reset(&fd->sc_motoroff_ch, 5 * hz, fd_motor_off, fd); 1142 fdc->sc_state = DEVIDLE; 1143 } 1144 1145 void 1146 fdc_reset(struct fdc_softc *fdc) 1147 { 1148 bus_space_tag_t t = fdc->sc_bustag; 1149 bus_space_handle_t h = fdc->sc_handle; 1150 1151 if ((fdc->sc_flags & FDC_82077) != 0) { 1152 bus_space_write_1(t, h, fdc->sc_reg_dor, 1153 FDO_FDMAEN | FDO_MOEN(0)); 1154 } 1155 1156 bus_space_write_1(t, h, fdc->sc_reg_drs, DRS_RESET); 1157 delay(10); 1158 bus_space_write_1(t, h, fdc->sc_reg_drs, 0); 1159 1160 if ((fdc->sc_flags & FDC_82077) != 0) { 1161 bus_space_write_1(t, h, fdc->sc_reg_dor, 1162 FDO_FRST | FDO_FDMAEN | FDO_DS); 1163 } 1164 #ifdef FD_DEBUG 1165 if (fdc_debug) 1166 printf("fdc reset\n"); 1167 #endif 1168 } 1169 1170 void 1171 fd_set_motor(struct fdc_softc *fdc) 1172 { 1173 struct fd_softc *fd; 1174 u_char status; 1175 int n; 1176 1177 if ((fdc->sc_flags & FDC_82077) != 0) { 1178 status = FDO_FRST | FDO_FDMAEN; 1179 if ((fd = fdc->sc_drives.tqh_first) != NULL) 1180 status |= fd->sc_drive; 1181 1182 for (n = 0; n < 4; n++) 1183 if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) 1184 status |= FDO_MOEN(n); 1185 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1186 fdc->sc_reg_dor, status); 1187 #ifdef SUN4 1188 } else { 1189 1190 for (n = 0; n < 4; n++) { 1191 if ((fd = fdc->sc_fd[n]) != NULL && 1192 (fd->sc_flags & FD_MOTOR) != 0) { 1193 auxregbisc(AUXIO4C_FDS, 0); 1194 return; 1195 } 1196 } 1197 auxregbisc(0, AUXIO4C_FDS); 1198 #endif 1199 } 1200 } 1201 1202 void 1203 fd_motor_off(void *arg) 1204 { 1205 struct fd_softc *fd = arg; 1206 int s; 1207 1208 s = splbio(); 1209 fd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1210 fd_set_motor(device_private(device_parent(fd->sc_dev))); 1211 splx(s); 1212 } 1213 1214 void 1215 fd_motor_on(void *arg) 1216 { 1217 struct fd_softc *fd = arg; 1218 struct fdc_softc *fdc = device_private(device_parent(fd->sc_dev)); 1219 int s; 1220 1221 s = splbio(); 1222 fd->sc_flags &= ~FD_MOTOR_WAIT; 1223 if ((fdc->sc_drives.tqh_first == fd) && (fdc->sc_state == MOTORWAIT)) 1224 (void)fdcstate(fdc); 1225 splx(s); 1226 } 1227 1228 /* 1229 * Get status bytes off the FDC after a command has finished 1230 * Returns the number of status bytes read; -1 on error. 1231 * The return value is also stored in `sc_nstat'. 1232 */ 1233 int 1234 fdcresult(struct fdc_softc *fdc) 1235 { 1236 bus_space_tag_t t = fdc->sc_bustag; 1237 bus_space_handle_t h = fdc->sc_handle; 1238 int j, n = 0; 1239 1240 for (j = 10000; j; j--) { 1241 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_msr); 1242 v &= (NE7_DIO | NE7_RQM | NE7_CB); 1243 if (v == NE7_RQM) 1244 return fdc->sc_nstat = n; 1245 if (v == (NE7_DIO | NE7_RQM | NE7_CB)) { 1246 if (n >= sizeof(fdc->sc_status)) { 1247 log(LOG_ERR, "fdcresult: overrun\n"); 1248 return -1; 1249 } 1250 fdc->sc_status[n++] = 1251 bus_space_read_1(t, h, fdc->sc_reg_fifo); 1252 } else 1253 delay(1); 1254 } 1255 1256 log(LOG_ERR, "fdcresult: timeout\n"); 1257 return fdc->sc_nstat = -1; 1258 } 1259 1260 /* 1261 * Write a command byte to the FDC. 1262 * Returns 0 on success; -1 on failure (i.e. timeout) 1263 */ 1264 int 1265 fdc_wrfifo(struct fdc_softc *fdc, uint8_t x) 1266 { 1267 bus_space_tag_t t = fdc->sc_bustag; 1268 bus_space_handle_t h = fdc->sc_handle; 1269 int i; 1270 1271 for (i = 100000; i-- > 0;) { 1272 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_msr); 1273 if ((v & (NE7_DIO|NE7_RQM)) == NE7_RQM) { 1274 /* The chip is ready */ 1275 bus_space_write_1(t, h, fdc->sc_reg_fifo, x); 1276 return 0; 1277 } 1278 delay(1); 1279 } 1280 return -1; 1281 } 1282 1283 int 1284 fdc_diskchange(struct fdc_softc *fdc) 1285 { 1286 1287 #ifdef SUN4 1288 if (CPU_ISSUN4M && (fdc->sc_flags & FDC_82077) != 0) { 1289 #endif 1290 bus_space_tag_t t = fdc->sc_bustag; 1291 bus_space_handle_t h = fdc->sc_handle; 1292 uint8_t v = bus_space_read_1(t, h, fdc->sc_reg_dir); 1293 return (v & FDI_DCHG) != 0; 1294 #ifdef SUN4 1295 } else if (CPU_ISSUN4C) { 1296 return (*AUXIO4C_REG & AUXIO4C_FDC) != 0; 1297 } 1298 return 0; 1299 #endif 1300 } 1301 1302 int 1303 fdopen(dev_t dev, int flags, int fmt, struct lwp *l) 1304 { 1305 int pmask; 1306 struct fd_softc *fd; 1307 struct fd_type *type; 1308 1309 fd = device_lookup_private(&fd_cd, FDUNIT(dev)); 1310 if (fd == NULL) 1311 return ENXIO; 1312 type = fd_dev_to_type(fd, dev); 1313 if (type == NULL) 1314 return ENXIO; 1315 1316 if ((fd->sc_flags & FD_OPEN) != 0 && 1317 fd->sc_type != type) 1318 return EBUSY; 1319 1320 fd->sc_type = type; 1321 fd->sc_cylin = -1; 1322 fd->sc_flags |= FD_OPEN; 1323 1324 /* 1325 * Only update the disklabel if we're not open anywhere else. 1326 */ 1327 if (fd->sc_dk.dk_openmask == 0) 1328 fdgetdisklabel(dev); 1329 1330 pmask = (1 << DISKPART(dev)); 1331 1332 switch (fmt) { 1333 case S_IFCHR: 1334 fd->sc_dk.dk_copenmask |= pmask; 1335 break; 1336 1337 case S_IFBLK: 1338 fd->sc_dk.dk_bopenmask |= pmask; 1339 break; 1340 } 1341 fd->sc_dk.dk_openmask = 1342 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1343 1344 return 0; 1345 } 1346 1347 int 1348 fdclose(dev_t dev, int flags, int fmt, struct lwp *l) 1349 { 1350 struct fd_softc *fd = device_lookup_private(&fd_cd, FDUNIT(dev)); 1351 int pmask = (1 << DISKPART(dev)); 1352 1353 fd->sc_flags &= ~FD_OPEN; 1354 fd->sc_opts &= ~(FDOPT_NORETRY|FDOPT_SILENT); 1355 1356 switch (fmt) { 1357 case S_IFCHR: 1358 fd->sc_dk.dk_copenmask &= ~pmask; 1359 break; 1360 1361 case S_IFBLK: 1362 fd->sc_dk.dk_bopenmask &= ~pmask; 1363 break; 1364 } 1365 fd->sc_dk.dk_openmask = 1366 fd->sc_dk.dk_copenmask | fd->sc_dk.dk_bopenmask; 1367 1368 return 0; 1369 } 1370 1371 int 1372 fdread(dev_t dev, struct uio *uio, int flag) 1373 { 1374 1375 return physio(fdstrategy, NULL, dev, B_READ, minphys, uio); 1376 } 1377 1378 int 1379 fdwrite(dev_t dev, struct uio *uio, int flag) 1380 { 1381 1382 return physio(fdstrategy, NULL, dev, B_WRITE, minphys, uio); 1383 } 1384 1385 void 1386 fdcstart(struct fdc_softc *fdc) 1387 { 1388 1389 #ifdef DIAGNOSTIC 1390 /* only got here if controller's drive queue was inactive; should 1391 be in idle state */ 1392 if (fdc->sc_state != DEVIDLE) { 1393 printf("fdcstart: not idle\n"); 1394 return; 1395 } 1396 #endif 1397 (void)fdcstate(fdc); 1398 } 1399 1400 static void 1401 fdcpstatus(struct fdc_softc *fdc) 1402 { 1403 char bits[64]; 1404 1405 snprintb(bits, sizeof(bits), NE7_ST0BITS, fdc->sc_status[0]); 1406 printf(" (st0 %s", bits); 1407 snprintb(bits, sizeof(bits), NE7_ST1BITS, fdc->sc_status[1]); 1408 printf(" st1 %s", bits); 1409 snprintb(bits, sizeof(bits), NE7_ST2BITS, fdc->sc_status[2]); 1410 printf(" st2 %s", bits); 1411 printf(" cyl %d head %d sec %d)\n", 1412 fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); 1413 } 1414 1415 void 1416 fdcstatus(struct fdc_softc *fdc, const char *s) 1417 { 1418 struct fd_softc *fd = fdc->sc_drives.tqh_first; 1419 int n; 1420 char bits[64]; 1421 1422 /* Just print last status */ 1423 n = fdc->sc_nstat; 1424 1425 #if 0 1426 /* 1427 * A 82072 seems to return <invalid command> on 1428 * gratuitous Sense Interrupt commands. 1429 */ 1430 if (n == 0 && (fdc->sc_flags & FDC_82077) != 0) { 1431 fdc_wrfifo(fdc, NE7CMD_SENSEI); 1432 (void)fdcresult(fdc); 1433 n = 2; 1434 } 1435 #endif 1436 1437 printf("%s: %s: state %d", 1438 fd ? device_xname(fd->sc_dev) : "fdc", s, fdc->sc_state); 1439 1440 switch (n) { 1441 case 0: 1442 printf("\n"); 1443 break; 1444 case 2: 1445 snprintb(bits, sizeof(bits), NE7_ST0BITS, fdc->sc_status[0]); 1446 printf(" (st0 %s cyl %d)\n", bits, fdc->sc_status[1]); 1447 break; 1448 case 7: 1449 fdcpstatus(fdc); 1450 break; 1451 #ifdef DIAGNOSTIC 1452 default: 1453 printf(" fdcstatus: weird size: %d\n", n); 1454 break; 1455 #endif 1456 } 1457 } 1458 1459 void 1460 fdctimeout(void *arg) 1461 { 1462 struct fdc_softc *fdc = arg; 1463 struct fd_softc *fd; 1464 int s; 1465 1466 s = splbio(); 1467 fd = fdc->sc_drives.tqh_first; 1468 if (fd == NULL) { 1469 aprint_error_dev(fdc->sc_dev, "timeout but no I/O pending: state %d, istatus=%d\n", 1470 fdc->sc_state, fdc->sc_istatus); 1471 fdc->sc_state = DEVIDLE; 1472 goto out; 1473 } 1474 1475 if (bufq_peek(fd->sc_q) != NULL) 1476 fdc->sc_state++; 1477 else 1478 fdc->sc_state = DEVIDLE; 1479 1480 (void)fdcstate(fdc); 1481 out: 1482 splx(s); 1483 1484 } 1485 1486 void 1487 fdcpseudointr(void *arg) 1488 { 1489 struct fdc_softc *fdc = arg; 1490 int s; 1491 1492 /* Just ensure it has the right spl. */ 1493 s = splbio(); 1494 (void)fdcstate(fdc); 1495 splx(s); 1496 } 1497 1498 1499 /* 1500 * hardware interrupt entry point: used only if no `fast trap' * (in-window) 1501 * handler is available. Unfortunately, we have no reliable way to 1502 * determine that the interrupt really came from the floppy controller; 1503 * just hope that the other devices that share this interrupt level 1504 * can do better.. 1505 */ 1506 int 1507 fdc_c_hwintr(void *arg) 1508 { 1509 struct fdc_softc *fdc = arg; 1510 bus_space_tag_t t = fdc->sc_bustag; 1511 bus_space_handle_t h = fdc->sc_handle; 1512 1513 switch (fdc->sc_itask) { 1514 case FDC_ITASK_NONE: 1515 return 0; 1516 case FDC_ITASK_SENSEI: 1517 if (fdc_wrfifo(fdc, NE7CMD_SENSEI) != 0 || fdcresult(fdc) == -1) 1518 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1519 else 1520 fdc->sc_istatus = FDC_ISTATUS_DONE; 1521 softint_schedule(fdc->sc_sicookie); 1522 return 1; 1523 case FDC_ITASK_RESULT: 1524 if (fdcresult(fdc) == -1) 1525 fdc->sc_istatus = FDC_ISTATUS_ERROR; 1526 else 1527 fdc->sc_istatus = FDC_ISTATUS_DONE; 1528 softint_schedule(fdc->sc_sicookie); 1529 return 1; 1530 case FDC_ITASK_DMA: 1531 /* Proceed with pseudo-DMA below */ 1532 break; 1533 default: 1534 printf("fdc: stray hard interrupt: itask=%d\n", fdc->sc_itask); 1535 fdc->sc_istatus = FDC_ISTATUS_SPURIOUS; 1536 softint_schedule(fdc->sc_sicookie); 1537 return 1; 1538 } 1539 1540 /* 1541 * Pseudo DMA in progress 1542 */ 1543 for (;;) { 1544 uint8_t msr; 1545 1546 msr = bus_space_read_1(t, h, fdc->sc_reg_msr); 1547 1548 if ((msr & NE7_RQM) == 0) 1549 /* That's all this round. */ 1550 break; 1551 1552 if ((msr & NE7_NDM) == 0) { 1553 /* Execution phase finished, get result. */ 1554 fdcresult(fdc); 1555 fdc->sc_istatus = FDC_ISTATUS_DONE; 1556 softint_schedule(fdc->sc_sicookie); 1557 break; 1558 } 1559 1560 if (fdc->sc_tc == 0) 1561 /* For some reason the controller wants to transfer 1562 more data then what we want to transfer. */ 1563 panic("fdc: overrun"); 1564 1565 /* Another byte can be transferred */ 1566 if ((msr & NE7_DIO) != 0) 1567 *fdc->sc_data = 1568 bus_space_read_1(t, h, fdc->sc_reg_fifo); 1569 else 1570 bus_space_write_1(t, h, fdc->sc_reg_fifo, 1571 *fdc->sc_data); 1572 1573 fdc->sc_data++; 1574 if (--fdc->sc_tc == 0) { 1575 FTC_FLIP; 1576 break; 1577 } 1578 } 1579 return 1; 1580 } 1581 1582 void 1583 fdcswintr(void *arg) 1584 { 1585 struct fdc_softc *fdc = arg; 1586 1587 if (fdc->sc_istatus == FDC_ISTATUS_NONE) 1588 /* This (software) interrupt is not for us */ 1589 return; 1590 1591 switch (fdc->sc_istatus) { 1592 case FDC_ISTATUS_ERROR: 1593 printf("fdc: ierror status: state %d\n", fdc->sc_state); 1594 break; 1595 case FDC_ISTATUS_SPURIOUS: 1596 printf("fdc: spurious interrupt: state %d\n", fdc->sc_state); 1597 break; 1598 } 1599 1600 fdcstate(fdc); 1601 return; 1602 } 1603 1604 int 1605 fdcstate(struct fdc_softc *fdc) 1606 { 1607 1608 #define st0 fdc->sc_status[0] 1609 #define st1 fdc->sc_status[1] 1610 #define cyl fdc->sc_status[1] 1611 #define FDC_WRFIFO(fdc, c) do { \ 1612 if (fdc_wrfifo(fdc, (c))) { \ 1613 goto xxx; \ 1614 } \ 1615 } while(0) 1616 1617 struct fd_softc *fd; 1618 struct buf *bp; 1619 int read, head, sec, nblks; 1620 struct fd_type *type; 1621 struct ne7_fd_formb *finfo = NULL; 1622 1623 if (fdc->sc_istatus == FDC_ISTATUS_ERROR) { 1624 /* Prevent loop if the reset sequence produces errors */ 1625 if (fdc->sc_state != RESETCOMPLETE && 1626 fdc->sc_state != RECALWAIT && 1627 fdc->sc_state != RECALCOMPLETE) 1628 fdc->sc_state = DORESET; 1629 } 1630 1631 /* Clear I task/status field */ 1632 fdc->sc_istatus = FDC_ISTATUS_NONE; 1633 fdc->sc_itask = FDC_ITASK_NONE; 1634 1635 loop: 1636 /* Is there a drive for the controller to do a transfer with? */ 1637 fd = fdc->sc_drives.tqh_first; 1638 if (fd == NULL) { 1639 fdc->sc_state = DEVIDLE; 1640 return 0; 1641 } 1642 1643 /* Is there a transfer to this drive? If not, deactivate drive. */ 1644 bp = bufq_peek(fd->sc_q); 1645 if (bp == NULL) { 1646 fd->sc_ops = 0; 1647 TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); 1648 fd->sc_active = 0; 1649 goto loop; 1650 } 1651 1652 if (bp->b_flags & B_FORMAT) 1653 finfo = (struct ne7_fd_formb *)bp->b_data; 1654 1655 switch (fdc->sc_state) { 1656 case DEVIDLE: 1657 fdc->sc_errors = 0; 1658 fd->sc_skip = 0; 1659 fd->sc_bcount = bp->b_bcount; 1660 fd->sc_blkno = (bp->b_blkno * DEV_BSIZE) / FD_BSIZE(fd); 1661 callout_stop(&fd->sc_motoroff_ch); 1662 if ((fd->sc_flags & FD_MOTOR_WAIT) != 0) { 1663 fdc->sc_state = MOTORWAIT; 1664 return 1; 1665 } 1666 if ((fd->sc_flags & FD_MOTOR) == 0) { 1667 /* Turn on the motor, being careful about pairing. */ 1668 struct fd_softc *ofd = fdc->sc_fd[fd->sc_drive ^ 1]; 1669 if (ofd && ofd->sc_flags & FD_MOTOR) { 1670 callout_stop(&ofd->sc_motoroff_ch); 1671 ofd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); 1672 } 1673 fd->sc_flags |= FD_MOTOR | FD_MOTOR_WAIT; 1674 fd_set_motor(fdc); 1675 fdc->sc_state = MOTORWAIT; 1676 if ((fdc->sc_flags & FDC_NEEDMOTORWAIT) != 0) { /*XXX*/ 1677 /* Allow .25s for motor to stabilize. */ 1678 callout_reset(&fd->sc_motoron_ch, hz / 4, 1679 fd_motor_on, fd); 1680 } else { 1681 fd->sc_flags &= ~FD_MOTOR_WAIT; 1682 goto loop; 1683 } 1684 return 1; 1685 } 1686 /* Make sure the right drive is selected. */ 1687 fd_set_motor(fdc); 1688 1689 if (fdc_diskchange(fdc)) 1690 goto dodskchg; 1691 1692 /*FALLTHROUGH*/ 1693 case DOSEEK: 1694 doseek: 1695 if ((fdc->sc_flags & FDC_EIS) && 1696 (bp->b_flags & B_FORMAT) == 0) { 1697 fd->sc_cylin = bp->b_cylinder; 1698 /* We use implied seek */ 1699 goto doio; 1700 } 1701 1702 if (fd->sc_cylin == bp->b_cylinder) 1703 goto doio; 1704 1705 fd->sc_cylin = -1; 1706 fdc->sc_state = SEEKWAIT; 1707 fdc->sc_nstat = 0; 1708 1709 iostat_seek(fd->sc_dk.dk_stats); 1710 1711 disk_busy(&fd->sc_dk); 1712 callout_reset(&fdc->sc_timo_ch, 4 * hz, fdctimeout, fdc); 1713 1714 /* specify command */ 1715 FDC_WRFIFO(fdc, NE7CMD_SPECIFY); 1716 FDC_WRFIFO(fdc, fd->sc_type->steprate); 1717 /* XXX head load time == 6ms */ 1718 FDC_WRFIFO(fdc, 6 | NE7_SPECIFY_NODMA); 1719 1720 fdc->sc_itask = FDC_ITASK_SENSEI; 1721 /* seek function */ 1722 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1723 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1724 FDC_WRFIFO(fdc, bp->b_cylinder * fd->sc_type->step); 1725 return 1; 1726 1727 case DODSKCHG: 1728 dodskchg: 1729 /* 1730 * Disk change: force a seek operation by going to cyl 1 1731 * followed by a recalibrate. 1732 */ 1733 disk_busy(&fd->sc_dk); 1734 callout_reset(&fdc->sc_timo_ch, 4 * hz, fdctimeout, fdc); 1735 fd->sc_cylin = -1; 1736 fdc->sc_nstat = 0; 1737 fdc->sc_state = DSKCHGWAIT; 1738 1739 fdc->sc_itask = FDC_ITASK_SENSEI; 1740 /* seek function */ 1741 FDC_WRFIFO(fdc, NE7CMD_SEEK); 1742 FDC_WRFIFO(fdc, fd->sc_drive); /* drive number */ 1743 FDC_WRFIFO(fdc, 1 * fd->sc_type->step); 1744 return 1; 1745 1746 case DSKCHGWAIT: 1747 callout_stop(&fdc->sc_timo_ch); 1748 disk_unbusy(&fd->sc_dk, 0, 0); 1749 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1750 cyl != 1 * fd->sc_type->step) { 1751 fdcstatus(fdc, "dskchg seek failed"); 1752 fdc->sc_state = DORESET; 1753 } else 1754 fdc->sc_state = DORECAL; 1755 1756 if (fdc_diskchange(fdc)) { 1757 aprint_error_dev(fdc->sc_dev, 1758 "cannot clear disk change status\n"); 1759 fdc->sc_state = DORESET; 1760 } 1761 goto loop; 1762 1763 case DOIO: 1764 doio: 1765 if (finfo != NULL) 1766 fd->sc_skip = (char *)&(finfo->fd_formb_cylno(0)) - 1767 (char *)finfo; 1768 type = fd->sc_type; 1769 sec = fd->sc_blkno % type->seccyl; 1770 nblks = type->seccyl - sec; 1771 nblks = min(nblks, fd->sc_bcount / FD_BSIZE(fd)); 1772 nblks = min(nblks, FDC_MAXIOSIZE / FD_BSIZE(fd)); 1773 fd->sc_nblks = nblks; 1774 fd->sc_nbytes = finfo ? bp->b_bcount : nblks * FD_BSIZE(fd); 1775 head = sec / type->sectrac; 1776 sec -= head * type->sectrac; 1777 #ifdef DIAGNOSTIC 1778 {int block; 1779 block = (fd->sc_cylin * type->heads + head) * type->sectrac + 1780 sec; 1781 if (block != fd->sc_blkno) { 1782 printf("fdcintr: block %d != blkno %d\n", block, 1783 (int)fd->sc_blkno); 1784 #ifdef DDB 1785 Debugger(); 1786 #endif 1787 }} 1788 #endif 1789 read = bp->b_flags & B_READ; 1790 1791 /* Setup for pseudo DMA */ 1792 fdc->sc_data = (char *)bp->b_data + fd->sc_skip; 1793 fdc->sc_tc = fd->sc_nbytes; 1794 1795 bus_space_write_1(fdc->sc_bustag, fdc->sc_handle, 1796 fdc->sc_reg_drs, type->rate); 1797 #ifdef FD_DEBUG 1798 if (fdc_debug > 1) 1799 printf("fdcstate: doio: %s drive %d " 1800 "track %d head %d sec %d nblks %d\n", 1801 finfo ? "format" : 1802 (read ? "read" : "write"), 1803 fd->sc_drive, fd->sc_cylin, head, sec, nblks); 1804 #endif 1805 fdc->sc_state = IOCOMPLETE; 1806 fdc->sc_itask = FDC_ITASK_DMA; 1807 fdc->sc_nstat = 0; 1808 1809 disk_busy(&fd->sc_dk); 1810 1811 /* allow 3 seconds for operation */ 1812 callout_reset(&fdc->sc_timo_ch, 3 * hz, fdctimeout, fdc); 1813 1814 if (finfo != NULL) { 1815 /* formatting */ 1816 FDC_WRFIFO(fdc, NE7CMD_FORMAT); 1817 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1818 FDC_WRFIFO(fdc, finfo->fd_formb_secshift); 1819 FDC_WRFIFO(fdc, finfo->fd_formb_nsecs); 1820 FDC_WRFIFO(fdc, finfo->fd_formb_gaplen); 1821 FDC_WRFIFO(fdc, finfo->fd_formb_fillbyte); 1822 } else { 1823 if (read) 1824 FDC_WRFIFO(fdc, NE7CMD_READ); 1825 else 1826 FDC_WRFIFO(fdc, NE7CMD_WRITE); 1827 FDC_WRFIFO(fdc, (head << 2) | fd->sc_drive); 1828 FDC_WRFIFO(fdc, fd->sc_cylin); /*track*/ 1829 FDC_WRFIFO(fdc, head); 1830 FDC_WRFIFO(fdc, sec + 1); /*sector+1*/ 1831 FDC_WRFIFO(fdc, type->secsize); /*sector size*/ 1832 FDC_WRFIFO(fdc, type->sectrac); /*secs/track*/ 1833 FDC_WRFIFO(fdc, type->gap1); /*gap1 size*/ 1834 FDC_WRFIFO(fdc, type->datalen); /*data length*/ 1835 } 1836 1837 return 1; /* will return later */ 1838 1839 case SEEKWAIT: 1840 callout_stop(&fdc->sc_timo_ch); 1841 fdc->sc_state = SEEKCOMPLETE; 1842 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 1843 /* allow 1/50 second for heads to settle */ 1844 callout_reset(&fdc->sc_intr_ch, hz / 50, 1845 fdcpseudointr, fdc); 1846 return 1; /* will return later */ 1847 } 1848 /*FALLTHROUGH*/ 1849 case SEEKCOMPLETE: 1850 /* no data on seek */ 1851 disk_unbusy(&fd->sc_dk, 0, 0); 1852 1853 /* Make sure seek really happened. */ 1854 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || 1855 cyl != bp->b_cylinder * fd->sc_type->step) { 1856 #ifdef FD_DEBUG 1857 if (fdc_debug) 1858 fdcstatus(fdc, "seek failed"); 1859 #endif 1860 fdcretry(fdc); 1861 goto loop; 1862 } 1863 fd->sc_cylin = bp->b_cylinder; 1864 goto doio; 1865 1866 case IOTIMEDOUT: 1867 /* 1868 * Try to abort the I/O operation without resetting 1869 * the chip first. Poke TC and arrange to pick up 1870 * the timed out I/O command's status. 1871 */ 1872 fdc->sc_itask = FDC_ITASK_RESULT; 1873 fdc->sc_state = IOCLEANUPWAIT; 1874 fdc->sc_nstat = 0; 1875 /* 1/10 second should be enough */ 1876 callout_reset(&fdc->sc_timo_ch, hz / 10, fdctimeout, fdc); 1877 FTC_FLIP; 1878 return 1; 1879 1880 case IOCLEANUPTIMEDOUT: 1881 case SEEKTIMEDOUT: 1882 case RECALTIMEDOUT: 1883 case RESETTIMEDOUT: 1884 case DSKCHGTIMEDOUT: 1885 fdcstatus(fdc, "timeout"); 1886 1887 /* All other timeouts always roll through to a chip reset */ 1888 fdcretry(fdc); 1889 1890 /* Force reset, no matter what fdcretry() says */ 1891 fdc->sc_state = DORESET; 1892 goto loop; 1893 1894 case IOCLEANUPWAIT: /* IO FAILED, cleanup succeeded */ 1895 callout_stop(&fdc->sc_timo_ch); 1896 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1897 (bp->b_flags & B_READ)); 1898 fdcretry(fdc); 1899 goto loop; 1900 1901 case IOCOMPLETE: /* IO DONE, post-analyze */ 1902 callout_stop(&fdc->sc_timo_ch); 1903 1904 disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), 1905 (bp->b_flags & B_READ)); 1906 1907 if (fdc->sc_nstat != 7 || st1 != 0 || 1908 ((st0 & 0xf8) != 0 && 1909 ((st0 & 0xf8) != 0x20 || (fdc->sc_cfg & CFG_EIS) == 0))) { 1910 #ifdef FD_DEBUG 1911 if (fdc_debug) { 1912 fdcstatus(fdc, bp->b_flags & B_READ ? 1913 "read failed" : "write failed"); 1914 printf("blkno %lld nblks %d nstat %d tc %d\n", 1915 (long long)fd->sc_blkno, fd->sc_nblks, 1916 fdc->sc_nstat, fdc->sc_tc); 1917 } 1918 #endif 1919 if (fdc->sc_nstat == 7 && 1920 (st1 & ST1_OVERRUN) == ST1_OVERRUN) { 1921 1922 /* 1923 * Silently retry overruns if no other 1924 * error bit is set. Adjust threshold. 1925 */ 1926 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1927 if (thr < 15) { 1928 thr++; 1929 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1930 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1931 #ifdef FD_DEBUG 1932 if (fdc_debug) 1933 printf("fdc: %d -> threshold\n", 1934 thr); 1935 #endif 1936 fdconf(fdc); 1937 fdc->sc_overruns = 0; 1938 } 1939 if (++fdc->sc_overruns < 3) { 1940 fdc->sc_state = DOIO; 1941 goto loop; 1942 } 1943 } 1944 fdcretry(fdc); 1945 goto loop; 1946 } 1947 if (fdc->sc_errors) { 1948 diskerr(bp, "fd", "soft error", LOG_PRINTF, 1949 fd->sc_skip / FD_BSIZE(fd), 1950 (struct disklabel *)NULL); 1951 printf("\n"); 1952 fdc->sc_errors = 0; 1953 } else { 1954 if (--fdc->sc_overruns < -20) { 1955 int thr = fdc->sc_cfg & CFG_THRHLD_MASK; 1956 if (thr > 0) { 1957 thr--; 1958 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 1959 fdc->sc_cfg |= (thr & CFG_THRHLD_MASK); 1960 #ifdef FD_DEBUG 1961 if (fdc_debug) 1962 printf("fdc: %d -> threshold\n", 1963 thr); 1964 #endif 1965 fdconf(fdc); 1966 } 1967 fdc->sc_overruns = 0; 1968 } 1969 } 1970 fd->sc_blkno += fd->sc_nblks; 1971 fd->sc_skip += fd->sc_nbytes; 1972 fd->sc_bcount -= fd->sc_nbytes; 1973 if (finfo == NULL && fd->sc_bcount > 0) { 1974 bp->b_cylinder = fd->sc_blkno / fd->sc_type->seccyl; 1975 goto doseek; 1976 } 1977 fdfinish(fd, bp); 1978 goto loop; 1979 1980 case DORESET: 1981 /* try a reset, keep motor on */ 1982 fd_set_motor(fdc); 1983 delay(100); 1984 fdc->sc_nstat = 0; 1985 fdc->sc_itask = FDC_ITASK_SENSEI; 1986 fdc->sc_state = RESETCOMPLETE; 1987 callout_reset(&fdc->sc_timo_ch, hz / 2, fdctimeout, fdc); 1988 fdc_reset(fdc); 1989 return 1; /* will return later */ 1990 1991 case RESETCOMPLETE: 1992 callout_stop(&fdc->sc_timo_ch); 1993 fdconf(fdc); 1994 1995 /* FALLTHROUGH */ 1996 case DORECAL: 1997 fdc->sc_state = RECALWAIT; 1998 fdc->sc_itask = FDC_ITASK_SENSEI; 1999 fdc->sc_nstat = 0; 2000 callout_reset(&fdc->sc_timo_ch, 5 * hz, fdctimeout, fdc); 2001 /* recalibrate function */ 2002 FDC_WRFIFO(fdc, NE7CMD_RECAL); 2003 FDC_WRFIFO(fdc, fd->sc_drive); 2004 return 1; /* will return later */ 2005 2006 case RECALWAIT: 2007 callout_stop(&fdc->sc_timo_ch); 2008 fdc->sc_state = RECALCOMPLETE; 2009 if (fdc->sc_flags & FDC_NEEDHEADSETTLE) { 2010 /* allow 1/30 second for heads to settle */ 2011 callout_reset(&fdc->sc_intr_ch, hz / 30, 2012 fdcpseudointr, fdc); 2013 return 1; /* will return later */ 2014 } 2015 2016 case RECALCOMPLETE: 2017 if (fdc->sc_nstat != 2 || (st0 & 0xf8) != 0x20 || cyl != 0) { 2018 #ifdef FD_DEBUG 2019 if (fdc_debug) 2020 fdcstatus(fdc, "recalibrate failed"); 2021 #endif 2022 fdcretry(fdc); 2023 goto loop; 2024 } 2025 fd->sc_cylin = 0; 2026 goto doseek; 2027 2028 case MOTORWAIT: 2029 if (fd->sc_flags & FD_MOTOR_WAIT) 2030 return 1; /* time's not up yet */ 2031 goto doseek; 2032 2033 default: 2034 fdcstatus(fdc, "stray interrupt"); 2035 return 1; 2036 } 2037 #ifdef DIAGNOSTIC 2038 panic("fdcintr: impossible"); 2039 #endif 2040 2041 xxx: 2042 /* 2043 * We get here if the chip locks up in FDC_WRFIFO() 2044 * Cancel any operation and schedule a reset 2045 */ 2046 callout_stop(&fdc->sc_timo_ch); 2047 fdcretry(fdc); 2048 fdc->sc_state = DORESET; 2049 goto loop; 2050 2051 #undef st0 2052 #undef st1 2053 #undef cyl 2054 } 2055 2056 void 2057 fdcretry(struct fdc_softc *fdc) 2058 { 2059 struct fd_softc *fd; 2060 struct buf *bp; 2061 int error = EIO; 2062 2063 fd = fdc->sc_drives.tqh_first; 2064 bp = bufq_peek(fd->sc_q); 2065 2066 fdc->sc_overruns = 0; 2067 if (fd->sc_opts & FDOPT_NORETRY) 2068 goto fail; 2069 2070 switch (fdc->sc_errors) { 2071 case 0: 2072 if (fdc->sc_nstat == 7 && 2073 (fdc->sc_status[0] & 0xd8) == 0x40 && 2074 (fdc->sc_status[1] & 0x2) == 0x2) { 2075 aprint_error_dev(fdc->sc_dev, "read-only medium\n"); 2076 error = EROFS; 2077 goto failsilent; 2078 } 2079 /* try again */ 2080 fdc->sc_state = 2081 (fdc->sc_flags & FDC_EIS) ? DOIO : DOSEEK; 2082 break; 2083 2084 case 1: case 2: case 3: 2085 /* didn't work; try recalibrating */ 2086 fdc->sc_state = DORECAL; 2087 break; 2088 2089 case 4: 2090 if (fdc->sc_nstat == 7 && 2091 fdc->sc_status[0] == 0 && 2092 fdc->sc_status[1] == 0 && 2093 fdc->sc_status[2] == 0) { 2094 /* 2095 * We've retried a few times and we've got 2096 * valid status and all three status bytes 2097 * are zero. Assume this condition is the 2098 * result of no disk loaded into the drive. 2099 */ 2100 aprint_error_dev(fdc->sc_dev, "no medium?\n"); 2101 error = ENODEV; 2102 goto failsilent; 2103 } 2104 2105 /* still no go; reset the bastard */ 2106 fdc->sc_state = DORESET; 2107 break; 2108 2109 default: 2110 fail: 2111 if ((fd->sc_opts & FDOPT_SILENT) == 0) { 2112 diskerr(bp, "fd", "hard error", LOG_PRINTF, 2113 fd->sc_skip / FD_BSIZE(fd), 2114 (struct disklabel *)NULL); 2115 printf("\n"); 2116 fdcstatus(fdc, "controller status"); 2117 } 2118 2119 failsilent: 2120 bp->b_error = error; 2121 fdfinish(fd, bp); 2122 } 2123 fdc->sc_errors++; 2124 } 2125 2126 int 2127 fdioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l) 2128 { 2129 struct fd_softc *fd; 2130 struct fdc_softc *fdc; 2131 struct fdformat_parms *form_parms; 2132 struct fdformat_cmd *form_cmd; 2133 struct ne7_fd_formb *fd_formb; 2134 int il[FD_MAX_NSEC + 1]; 2135 int unit; 2136 int i, j; 2137 int error; 2138 2139 unit = FDUNIT(dev); 2140 if (unit >= fd_cd.cd_ndevs) 2141 return ENXIO; 2142 2143 fd = device_lookup_private(&fd_cd, FDUNIT(dev)); 2144 fdc = device_private(device_parent(fd->sc_dev)); 2145 2146 switch (cmd) { 2147 case DIOCGDINFO: 2148 *(struct disklabel *)addr = *(fd->sc_dk.dk_label); 2149 return 0; 2150 2151 case DIOCWLABEL: 2152 if ((flag & FWRITE) == 0) 2153 return EBADF; 2154 /* XXX do something */ 2155 return 0; 2156 2157 case DIOCWDINFO: 2158 if ((flag & FWRITE) == 0) 2159 return EBADF; 2160 2161 error = setdisklabel(fd->sc_dk.dk_label, 2162 (struct disklabel *)addr, 0, 2163 fd->sc_dk.dk_cpulabel); 2164 if (error) 2165 return error; 2166 2167 error = writedisklabel(dev, fdstrategy, 2168 fd->sc_dk.dk_label, 2169 fd->sc_dk.dk_cpulabel); 2170 return error; 2171 2172 case DIOCLOCK: 2173 /* 2174 * Nothing to do here, really. 2175 */ 2176 return 0; 2177 2178 case DIOCEJECT: 2179 if (*(int *)addr == 0) { 2180 int part = DISKPART(dev); 2181 /* 2182 * Don't force eject: check that we are the only 2183 * partition open. If so, unlock it. 2184 */ 2185 if ((fd->sc_dk.dk_openmask & ~(1 << part)) != 0 || 2186 fd->sc_dk.dk_bopenmask + fd->sc_dk.dk_copenmask != 2187 fd->sc_dk.dk_openmask) { 2188 return EBUSY; 2189 } 2190 } 2191 /* FALLTHROUGH */ 2192 case ODIOCEJECT: 2193 if (fdc->sc_flags & FDC_NOEJECT) 2194 return EINVAL; 2195 fd_do_eject(fd); 2196 return 0; 2197 2198 case FDIOCGETFORMAT: 2199 form_parms = (struct fdformat_parms *)addr; 2200 form_parms->fdformat_version = FDFORMAT_VERSION; 2201 form_parms->nbps = 128 * (1 << fd->sc_type->secsize); 2202 form_parms->ncyl = fd->sc_type->cylinders; 2203 form_parms->nspt = fd->sc_type->sectrac; 2204 form_parms->ntrk = fd->sc_type->heads; 2205 form_parms->stepspercyl = fd->sc_type->step; 2206 form_parms->gaplen = fd->sc_type->gap2; 2207 form_parms->fillbyte = fd->sc_type->fillbyte; 2208 form_parms->interleave = fd->sc_type->interleave; 2209 switch (fd->sc_type->rate) { 2210 case FDC_500KBPS: 2211 form_parms->xfer_rate = 500 * 1024; 2212 break; 2213 case FDC_300KBPS: 2214 form_parms->xfer_rate = 300 * 1024; 2215 break; 2216 case FDC_250KBPS: 2217 form_parms->xfer_rate = 250 * 1024; 2218 break; 2219 default: 2220 return EINVAL; 2221 } 2222 return 0; 2223 2224 case FDIOCSETFORMAT: 2225 if ((flag & FWRITE) == 0) 2226 return EBADF; /* must be opened for writing */ 2227 2228 form_parms = (struct fdformat_parms *)addr; 2229 if (form_parms->fdformat_version != FDFORMAT_VERSION) 2230 return EINVAL;/* wrong version of formatting prog */ 2231 2232 i = form_parms->nbps >> 7; 2233 if ((form_parms->nbps & 0x7f) || ffs(i) == 0 || 2234 i & ~(1 << (ffs(i)-1))) 2235 /* not a power-of-two multiple of 128 */ 2236 return EINVAL; 2237 2238 switch (form_parms->xfer_rate) { 2239 case 500 * 1024: 2240 fd->sc_type->rate = FDC_500KBPS; 2241 break; 2242 case 300 * 1024: 2243 fd->sc_type->rate = FDC_300KBPS; 2244 break; 2245 case 250 * 1024: 2246 fd->sc_type->rate = FDC_250KBPS; 2247 break; 2248 default: 2249 return EINVAL; 2250 } 2251 2252 if (form_parms->nspt > FD_MAX_NSEC || 2253 form_parms->fillbyte > 0xff || 2254 form_parms->interleave > 0xff) 2255 return EINVAL; 2256 fd->sc_type->sectrac = form_parms->nspt; 2257 if (form_parms->ntrk != 2 && form_parms->ntrk != 1) 2258 return EINVAL; 2259 fd->sc_type->heads = form_parms->ntrk; 2260 fd->sc_type->seccyl = form_parms->nspt * form_parms->ntrk; 2261 fd->sc_type->secsize = ffs(i)-1; 2262 fd->sc_type->gap2 = form_parms->gaplen; 2263 fd->sc_type->cylinders = form_parms->ncyl; 2264 fd->sc_type->size = fd->sc_type->seccyl * form_parms->ncyl * 2265 form_parms->nbps / DEV_BSIZE; 2266 fd->sc_type->step = form_parms->stepspercyl; 2267 fd->sc_type->fillbyte = form_parms->fillbyte; 2268 fd->sc_type->interleave = form_parms->interleave; 2269 return 0; 2270 2271 case FDIOCFORMAT_TRACK: 2272 if((flag & FWRITE) == 0) 2273 /* must be opened for writing */ 2274 return EBADF; 2275 form_cmd = (struct fdformat_cmd *)addr; 2276 if (form_cmd->formatcmd_version != FDFORMAT_VERSION) 2277 /* wrong version of formatting prog */ 2278 return EINVAL; 2279 2280 if (form_cmd->head >= fd->sc_type->heads || 2281 form_cmd->cylinder >= fd->sc_type->cylinders) { 2282 return EINVAL; 2283 } 2284 2285 fd_formb = malloc(sizeof(struct ne7_fd_formb), 2286 M_TEMP, M_NOWAIT); 2287 if (fd_formb == 0) 2288 return ENOMEM; 2289 2290 fd_formb->head = form_cmd->head; 2291 fd_formb->cyl = form_cmd->cylinder; 2292 fd_formb->transfer_rate = fd->sc_type->rate; 2293 fd_formb->fd_formb_secshift = fd->sc_type->secsize; 2294 fd_formb->fd_formb_nsecs = fd->sc_type->sectrac; 2295 fd_formb->fd_formb_gaplen = fd->sc_type->gap2; 2296 fd_formb->fd_formb_fillbyte = fd->sc_type->fillbyte; 2297 2298 memset(il, 0, sizeof il); 2299 for (j = 0, i = 1; i <= fd_formb->fd_formb_nsecs; i++) { 2300 while (il[(j % fd_formb->fd_formb_nsecs) + 1]) 2301 j++; 2302 il[(j % fd_formb->fd_formb_nsecs) + 1] = i; 2303 j += fd->sc_type->interleave; 2304 } 2305 for (i = 0; i < fd_formb->fd_formb_nsecs; i++) { 2306 fd_formb->fd_formb_cylno(i) = form_cmd->cylinder; 2307 fd_formb->fd_formb_headno(i) = form_cmd->head; 2308 fd_formb->fd_formb_secno(i) = il[i + 1]; 2309 fd_formb->fd_formb_secsize(i) = fd->sc_type->secsize; 2310 } 2311 2312 error = fdformat(dev, fd_formb, l->l_proc); 2313 free(fd_formb, M_TEMP); 2314 return error; 2315 2316 case FDIOCGETOPTS: /* get drive options */ 2317 *(int *)addr = fd->sc_opts; 2318 return 0; 2319 2320 case FDIOCSETOPTS: /* set drive options */ 2321 fd->sc_opts = *(int *)addr; 2322 return 0; 2323 2324 #ifdef FD_DEBUG 2325 case _IO('f', 100): 2326 fdc_wrfifo(fdc, NE7CMD_DUMPREG); 2327 fdcresult(fdc); 2328 printf("fdc: dumpreg(%d regs): <", fdc->sc_nstat); 2329 for (i = 0; i < fdc->sc_nstat; i++) 2330 printf(" 0x%x", fdc->sc_status[i]); 2331 printf(">\n"); 2332 return 0; 2333 2334 case _IOW('f', 101, int): 2335 fdc->sc_cfg &= ~CFG_THRHLD_MASK; 2336 fdc->sc_cfg |= (*(int *)addr & CFG_THRHLD_MASK); 2337 fdconf(fdc); 2338 return 0; 2339 2340 case _IO('f', 102): 2341 fdc_wrfifo(fdc, NE7CMD_SENSEI); 2342 fdcresult(fdc); 2343 printf("fdc: sensei(%d regs): <", fdc->sc_nstat); 2344 for (i=0; i< fdc->sc_nstat; i++) 2345 printf(" 0x%x", fdc->sc_status[i]); 2346 printf(">\n"); 2347 return 0; 2348 #endif 2349 default: 2350 return ENOTTY; 2351 } 2352 2353 #ifdef DIAGNOSTIC 2354 panic("fdioctl: impossible"); 2355 #endif 2356 } 2357 2358 int 2359 fdformat(dev_t dev, struct ne7_fd_formb *finfo, struct proc *p) 2360 { 2361 int rv = 0; 2362 struct fd_softc *fd = device_lookup_private(&fd_cd, FDUNIT(dev)); 2363 struct fd_type *type = fd->sc_type; 2364 struct buf *bp; 2365 2366 /* set up a buffer header for fdstrategy() */ 2367 bp = getiobuf(NULL, false); 2368 if (bp == NULL) 2369 return ENOBUFS; 2370 2371 bp->b_vp = NULL; 2372 bp->b_cflags = BC_BUSY; 2373 bp->b_flags = B_PHYS | B_FORMAT; 2374 bp->b_proc = p; 2375 bp->b_dev = dev; 2376 2377 /* 2378 * Calculate a fake blkno, so fdstrategy() would initiate a 2379 * seek to the requested cylinder. 2380 */ 2381 bp->b_blkno = ((finfo->cyl * (type->sectrac * type->heads) 2382 + finfo->head * type->sectrac) * FD_BSIZE(fd)) 2383 / DEV_BSIZE; 2384 2385 bp->b_bcount = sizeof(struct fd_idfield_data) * finfo->fd_formb_nsecs; 2386 bp->b_data = (void *)finfo; 2387 2388 #ifdef FD_DEBUG 2389 if (fdc_debug) { 2390 int i; 2391 2392 printf("fdformat: blkno 0x%llx count %d\n", 2393 (unsigned long long)bp->b_blkno, bp->b_bcount); 2394 2395 printf("\tcyl:\t%d\n", finfo->cyl); 2396 printf("\thead:\t%d\n", finfo->head); 2397 printf("\tnsecs:\t%d\n", finfo->fd_formb_nsecs); 2398 printf("\tsshft:\t%d\n", finfo->fd_formb_secshift); 2399 printf("\tgaplen:\t%d\n", finfo->fd_formb_gaplen); 2400 printf("\ttrack data:"); 2401 for (i = 0; i < finfo->fd_formb_nsecs; i++) { 2402 printf(" [c%d h%d s%d]", 2403 finfo->fd_formb_cylno(i), 2404 finfo->fd_formb_headno(i), 2405 finfo->fd_formb_secno(i) ); 2406 if (finfo->fd_formb_secsize(i) != 2) 2407 printf("<sz:%d>", finfo->fd_formb_secsize(i)); 2408 } 2409 printf("\n"); 2410 } 2411 #endif 2412 2413 /* now do the format */ 2414 fdstrategy(bp); 2415 2416 /* ...and wait for it to complete */ 2417 rv = biowait(bp); 2418 putiobuf(bp); 2419 return rv; 2420 } 2421 2422 void 2423 fdgetdisklabel(dev_t dev) 2424 { 2425 int i; 2426 struct fd_softc *fd = device_lookup_private(&fd_cd, FDUNIT(dev)); 2427 struct disklabel *lp = fd->sc_dk.dk_label; 2428 struct cpu_disklabel *clp = fd->sc_dk.dk_cpulabel; 2429 2430 memset(lp, 0, sizeof(struct disklabel)); 2431 memset(lp, 0, sizeof(struct cpu_disklabel)); 2432 2433 lp->d_type = DTYPE_FLOPPY; 2434 lp->d_secsize = FD_BSIZE(fd); 2435 lp->d_secpercyl = fd->sc_type->seccyl; 2436 lp->d_nsectors = fd->sc_type->sectrac; 2437 lp->d_ncylinders = fd->sc_type->cylinders; 2438 lp->d_ntracks = fd->sc_type->heads; /* Go figure... */ 2439 lp->d_secperunit = lp->d_secpercyl * lp->d_ncylinders; 2440 lp->d_rpm = 300; /* XXX like it matters... */ 2441 2442 strncpy(lp->d_typename, "floppy disk", sizeof(lp->d_typename)); 2443 strncpy(lp->d_packname, "fictitious", sizeof(lp->d_packname)); 2444 lp->d_interleave = 1; 2445 lp->d_flags = D_REMOVABLE; 2446 2447 lp->d_partitions[RAW_PART].p_offset = 0; 2448 lp->d_partitions[RAW_PART].p_size = lp->d_secpercyl * lp->d_ncylinders; 2449 lp->d_partitions[RAW_PART].p_fstype = FS_UNUSED; 2450 lp->d_npartitions = RAW_PART + 1; 2451 2452 lp->d_magic = DISKMAGIC; 2453 lp->d_magic2 = DISKMAGIC; 2454 lp->d_checksum = dkcksum(lp); 2455 2456 /* 2457 * Call the generic disklabel extraction routine. If there's 2458 * not a label there, fake it. 2459 */ 2460 if (readdisklabel(dev, fdstrategy, lp, clp) != NULL) { 2461 strncpy(lp->d_packname, "default label", 2462 sizeof(lp->d_packname)); 2463 /* 2464 * Reset the partition info; it might have gotten 2465 * trashed in readdisklabel(). 2466 * 2467 * XXX Why do we have to do this? readdisklabel() 2468 * should be safe... 2469 */ 2470 for (i = 0; i < MAXPARTITIONS; ++i) { 2471 lp->d_partitions[i].p_offset = 0; 2472 if (i == RAW_PART) { 2473 lp->d_partitions[i].p_size = 2474 lp->d_secpercyl * lp->d_ncylinders; 2475 lp->d_partitions[i].p_fstype = FS_BSDFFS; 2476 } else { 2477 lp->d_partitions[i].p_size = 0; 2478 lp->d_partitions[i].p_fstype = FS_UNUSED; 2479 } 2480 } 2481 lp->d_npartitions = RAW_PART + 1; 2482 } 2483 } 2484 2485 void 2486 fd_do_eject(struct fd_softc *fd) 2487 { 2488 struct fdc_softc *fdc = device_private(device_parent(fd->sc_dev)); 2489 2490 #ifdef SUN4 2491 if (CPU_ISSUN4C) { 2492 auxregbisc(AUXIO4C_FDS, AUXIO4C_FEJ); 2493 delay(10); 2494 auxregbisc(AUXIO4C_FEJ, AUXIO4C_FDS); 2495 return; 2496 } 2497 if (CPU_ISSUN4M && (fdc->sc_flags & FDC_82077) != 0) { 2498 #endif 2499 bus_space_tag_t t = fdc->sc_bustag; 2500 bus_space_handle_t h = fdc->sc_handle; 2501 uint8_t dor = FDO_FRST | FDO_FDMAEN | FDO_MOEN(0); 2502 2503 bus_space_write_1(t, h, fdc->sc_reg_dor, dor | FDO_EJ); 2504 delay(10); 2505 bus_space_write_1(t, h, fdc->sc_reg_dor, FDO_FRST | FDO_DS); 2506 return; 2507 #ifdef SUN4 2508 } 2509 #endif 2510 } 2511 2512 /* ARGSUSED */ 2513 void 2514 fd_mountroot_hook(device_t dev) 2515 { 2516 int c; 2517 2518 fd_do_eject((struct fd_softc *)dev); 2519 printf("Insert filesystem floppy and press return."); 2520 for (;;) { 2521 c = cngetc(); 2522 if ((c == '\r') || (c == '\n')) { 2523 printf("\n"); 2524 break; 2525 } 2526 } 2527 } 2528 2529 #ifdef MEMORY_DISK_HOOKS 2530 2531 #define FDMICROROOTSIZE ((2*18*80) << DEV_BSHIFT) 2532 2533 int 2534 fd_read_md_image(size_t *sizep, void **addrp) 2535 { 2536 struct buf buf, *bp = &buf; 2537 dev_t dev; 2538 off_t offset; 2539 char *addr; 2540 2541 dev = makedev(54,0); /* XXX */ 2542 2543 addr = malloc(FDMICROROOTSIZE, M_DEVBUF, M_WAITOK); 2544 *addrp = addr; 2545 2546 if (fdopen(dev, 0, S_IFCHR, NULL)) 2547 panic("fd: mountroot: fdopen"); 2548 2549 offset = 0; 2550 2551 for (;;) { 2552 bp->b_dev = dev; 2553 bp->b_error = 0; 2554 bp->b_resid = 0; 2555 bp->b_proc = NULL; 2556 bp->b_cflags = BC_BUSY; 2557 bp->b_flags = B_PHYS | B_RAW | B_READ; 2558 bp->b_blkno = btodb(offset); 2559 bp->b_bcount = DEV_BSIZE; 2560 bp->b_data = addr; 2561 fdstrategy(bp); 2562 biowait(bp); 2563 if (bp->b_error) 2564 panic("fd: mountroot: fdread error %d", bp->b_error); 2565 2566 if (bp->b_resid != 0) 2567 break; 2568 2569 addr += DEV_BSIZE; 2570 offset += DEV_BSIZE; 2571 if (offset + DEV_BSIZE > FDMICROROOTSIZE) 2572 break; 2573 } 2574 (void)fdclose(dev, 0, S_IFCHR, NULL); 2575 *sizep = offset; 2576 fd_do_eject(device_lookup_private(&fd_cd, FDUNIT(dev))); 2577 return 0; 2578 } 2579 #endif /* MEMORY_DISK_HOOKS */ 2580 2581 static void 2582 fd_set_geometry(struct fd_softc *fd) 2583 { 2584 const struct fd_type *fdt; 2585 2586 fdt = fd->sc_type; 2587 if (fdt == NULL) { 2588 fdt = fd->sc_deftype; 2589 if (fdt == NULL) 2590 return; 2591 } 2592 2593 struct disk_geom *dg = &fd->sc_dk.dk_geom; 2594 2595 memset(dg, 0, sizeof(*dg)); 2596 dg->dg_secperunit = fdt->size; 2597 dg->dg_nsectors = fdt->sectrac; 2598 switch (fdt->secsize) { 2599 case 2: 2600 dg->dg_secsize = 512; 2601 break; 2602 case 3: 2603 dg->dg_secsize = 1024; 2604 break; 2605 default: 2606 break; 2607 } 2608 dg->dg_ntracks = fdt->heads; 2609 dg->dg_ncylinders = fdt->cylinders; 2610 disk_set_info(fd->sc_dev, &fd->sc_dk, NULL); 2611 } 2612
Indexes created Mon Sep 29 21:09:56 GMT 2025