| 1 | /* $NetBSD: fd.c,v 1.110 2015/12/08 20:36:15 christos Exp $ */ |
| 2 | |
| 3 | /*- |
| 4 | * Copyright (c) 1998, 2003, 2008 The NetBSD Foundation, Inc. |
| 5 | * All rights reserved. |
| 6 | * |
| 7 | * This code is derived from software contributed to The NetBSD Foundation |
| 8 | * by Charles M. Hannum. |
| 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 | * Floppy formatting facilities merged from FreeBSD fd.c driver: |
| 68 | * Id: fd.c,v 1.53 1995/03/12 22:40:56 joerg Exp |
| 69 | * which carries the same copyright/redistribution notice as shown above with |
| 70 | * the addition of the following statement before the "Redistribution and |
| 71 | * use ..." clause: |
| 72 | * |
| 73 | * Copyright (c) 1993, 1994 by |
| 74 | * jc@irbs.UUCP (John Capo) |
| 75 | * vak@zebub.msk.su (Serge Vakulenko) |
| 76 | * ache@astral.msk.su (Andrew A. Chernov) |
| 77 | * |
| 78 | * Copyright (c) 1993, 1994, 1995 by |
| 79 | * joerg_wunsch@uriah.sax.de (Joerg Wunsch) |
| 80 | * dufault@hda.com (Peter Dufault) |
| 81 | */ |
| 82 | |
| 83 | #include <sys/cdefs.h> |
| 84 | __KERNEL_RCSID(0, "$NetBSD: fd.c,v 1.110 2015/12/08 20:36:15 christos Exp $" ); |
| 85 | |
| 86 | #include "opt_ddb.h" |
| 87 | |
| 88 | /* |
| 89 | * XXX This driver should be properly MI'd some day, but this allows us |
| 90 | * XXX to eliminate a lot of code duplication for now. |
| 91 | */ |
| 92 | #if !defined(alpha) && !defined(algor) && !defined(atari) && \ |
| 93 | !defined(bebox) && !defined(evbmips) && !defined(i386) && \ |
| 94 | !defined(prep) && !defined(sandpoint) && !defined(x86_64) && \ |
| 95 | !defined(mvmeppc) && !defined(ofppc) |
| 96 | #error platform not supported by this driver, yet |
| 97 | #endif |
| 98 | |
| 99 | #include <sys/param.h> |
| 100 | #include <sys/systm.h> |
| 101 | #include <sys/callout.h> |
| 102 | #include <sys/kernel.h> |
| 103 | #include <sys/file.h> |
| 104 | #include <sys/ioctl.h> |
| 105 | #include <sys/device.h> |
| 106 | #include <sys/disklabel.h> |
| 107 | #include <sys/disk.h> |
| 108 | #include <sys/buf.h> |
| 109 | #include <sys/bufq.h> |
| 110 | #include <sys/malloc.h> |
| 111 | #include <sys/uio.h> |
| 112 | #include <sys/syslog.h> |
| 113 | #include <sys/queue.h> |
| 114 | #include <sys/proc.h> |
| 115 | #include <sys/fdio.h> |
| 116 | #include <sys/conf.h> |
| 117 | #include <sys/vnode.h> |
| 118 | #include <sys/rndsource.h> |
| 119 | |
| 120 | #include <prop/proplib.h> |
| 121 | |
| 122 | #include <dev/cons.h> |
| 123 | |
| 124 | #include <sys/cpu.h> |
| 125 | #include <sys/bus.h> |
| 126 | |
| 127 | #include "locators.h" |
| 128 | |
| 129 | #if defined(atari) |
| 130 | /* |
| 131 | * On the atari, it is configured as fdcisa |
| 132 | */ |
| 133 | #define FDCCF_DRIVE FDCISACF_DRIVE |
| 134 | #define FDCCF_DRIVE_DEFAULT FDCISACF_DRIVE_DEFAULT |
| 135 | |
| 136 | #define fd_cd fdisa_cd |
| 137 | #endif /* atari */ |
| 138 | |
| 139 | #include <sys/intr.h> |
| 140 | |
| 141 | #include <dev/isa/isavar.h> |
| 142 | #include <dev/isa/isadmavar.h> |
| 143 | |
| 144 | #include <dev/isa/fdreg.h> |
| 145 | #include <dev/isa/fdcvar.h> |
| 146 | |
| 147 | #if defined(i386) || defined(x86_64) |
| 148 | |
| 149 | #include <dev/ic/mc146818reg.h> /* for NVRAM access */ |
| 150 | #include <i386/isa/nvram.h> |
| 151 | |
| 152 | #if defined(i386) |
| 153 | #include "mca.h" |
| 154 | #if NMCA > 0 |
| 155 | #include <machine/mca_machdep.h> /* for MCA_system */ |
| 156 | #endif |
| 157 | #endif |
| 158 | |
| 159 | #endif /* i386 || x86_64 */ |
| 160 | |
| 161 | #include <dev/isa/fdvar.h> |
| 162 | |
| 163 | #define FDUNIT(dev) (minor(dev) / 8) |
| 164 | #define FDTYPE(dev) (minor(dev) % 8) |
| 165 | |
| 166 | /* (mis)use device use flag to identify format operation */ |
| 167 | #define B_FORMAT B_DEVPRIVATE |
| 168 | |
| 169 | /* controller driver configuration */ |
| 170 | int fdprint(void *, const char *); |
| 171 | |
| 172 | #if NMCA > 0 |
| 173 | /* MCA - specific entries */ |
| 174 | const struct fd_type mca_fd_types[] = { |
| 175 | { 18,2,36,2,0xff,0x0f,0x1b,0x6c,80,2880,1,FDC_500KBPS,0xf6,1, "1.44MB" }, /* 1.44MB diskette - XXX try 16ms step rate */ |
| 176 | { 9,2,18,2,0xff,0x4f,0x2a,0x50,80,1440,1,FDC_250KBPS,0xf6,1, "720KB" }, /* 3.5 inch 720kB diskette - XXX try 24ms step rate */ |
| 177 | }; |
| 178 | #endif /* NMCA > 0 */ |
| 179 | |
| 180 | /* The order of entries in the following table is important -- BEWARE! */ |
| 181 | |
| 182 | #if defined(atari) |
| 183 | const struct fd_type fd_types[] = { |
| 184 | { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,1,FDC_250KBPS,0xf6,1, "360KB/PC" }, /* 360kB PC diskettes */ |
| 185 | { 9,2,18,2,0xff,0xdf,0x2a,0x50,80,1440,1,FDC_250KBPS,0xf6,1, "720KB" }, /* 3.5 inch 720kB diskette */ |
| 186 | { 18,2,36,2,0xff,0xcf,0x1b,0x6c,80,2880,1,FDC_500KBPS,0xf6,1, "1.44MB" }, /* 1.44MB diskette */ |
| 187 | }; |
| 188 | #else |
| 189 | const struct fd_type fd_types[] = { |
| 190 | { 18,2,36,2,0xff,0xcf,0x1b,0x6c,80,2880,1,FDC_500KBPS,0xf6,1, "1.44MB" }, /* 1.44MB diskette */ |
| 191 | { 15,2,30,2,0xff,0xdf,0x1b,0x54,80,2400,1,FDC_500KBPS,0xf6,1, "1.2MB" }, /* 1.2 MB AT-diskettes */ |
| 192 | { 9,2,18,2,0xff,0xdf,0x23,0x50,40, 720,2,FDC_300KBPS,0xf6,1, "360KB/AT" }, /* 360kB in 1.2MB drive */ |
| 193 | { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,1,FDC_250KBPS,0xf6,1, "360KB/PC" }, /* 360kB PC diskettes */ |
| 194 | { 9,2,18,2,0xff,0xdf,0x2a,0x50,80,1440,1,FDC_250KBPS,0xf6,1, "720KB" }, /* 3.5 inch 720kB diskette */ |
| 195 | { 9,2,18,2,0xff,0xdf,0x23,0x50,80,1440,1,FDC_300KBPS,0xf6,1, "720KB/x" }, /* 720kB in 1.2MB drive */ |
| 196 | { 9,2,18,2,0xff,0xdf,0x2a,0x50,40, 720,2,FDC_250KBPS,0xf6,1, "360KB/x" }, /* 360kB in 720kB drive */ |
| 197 | }; |
| 198 | #endif /* defined(atari) */ |
| 199 | |
| 200 | void fdcfinishattach(device_t); |
| 201 | int fdprobe(device_t, cfdata_t, void *); |
| 202 | void fdattach(device_t, device_t, void *); |
| 203 | static int fddetach(device_t, int); |
| 204 | static int fdcintr1(struct fdc_softc *); |
| 205 | static void fdcintrcb(void *); |
| 206 | static bool fdcsuspend(device_t, const pmf_qual_t *); |
| 207 | static bool fdcresume(device_t, const pmf_qual_t *); |
| 208 | |
| 209 | extern struct cfdriver fd_cd; |
| 210 | |
| 211 | #ifdef atari |
| 212 | CFATTACH_DECL_NEW(fdisa, sizeof(struct fd_softc), |
| 213 | fdprobe, fdattach, fddetach, NULL); |
| 214 | #else |
| 215 | CFATTACH_DECL_NEW(fd, sizeof(struct fd_softc), |
| 216 | fdprobe, fdattach, fddetach, NULL); |
| 217 | #endif |
| 218 | |
| 219 | dev_type_open(fdopen); |
| 220 | dev_type_close(fdclose); |
| 221 | dev_type_read(fdread); |
| 222 | dev_type_write(fdwrite); |
| 223 | dev_type_ioctl(fdioctl); |
| 224 | dev_type_strategy(fdstrategy); |
| 225 | |
| 226 | const struct bdevsw fd_bdevsw = { |
| 227 | .d_open = fdopen, |
| 228 | .d_close = fdclose, |
| 229 | .d_strategy = fdstrategy, |
| 230 | .d_ioctl = fdioctl, |
| 231 | .d_dump = nodump, |
| 232 | .d_psize = nosize, |
| 233 | .d_discard = nodiscard, |
| 234 | .d_flag = D_DISK |
| 235 | }; |
| 236 | |
| 237 | const struct cdevsw fd_cdevsw = { |
| 238 | .d_open = fdopen, |
| 239 | .d_close = fdclose, |
| 240 | .d_read = fdread, |
| 241 | .d_write = fdwrite, |
| 242 | .d_ioctl = fdioctl, |
| 243 | .d_stop = nostop, |
| 244 | .d_tty = notty, |
| 245 | .d_poll = nopoll, |
| 246 | .d_mmap = nommap, |
| 247 | .d_kqfilter = nokqfilter, |
| 248 | .d_discard = nodiscard, |
| 249 | .d_flag = D_DISK |
| 250 | }; |
| 251 | |
| 252 | void fdgetdisklabel(struct fd_softc *); |
| 253 | int fd_get_parms(struct fd_softc *); |
| 254 | void fdstart(struct fd_softc *); |
| 255 | |
| 256 | struct dkdriver fddkdriver = { |
| 257 | .d_strategy = fdstrategy, |
| 258 | .d_minphys = minphys |
| 259 | }; |
| 260 | |
| 261 | #if defined(i386) || defined(x86_64) |
| 262 | const struct fd_type *fd_nvtotype(const char *, int, int); |
| 263 | #endif /* i386 || x86_64 */ |
| 264 | void fd_set_motor(struct fdc_softc *fdc, int reset); |
| 265 | void fd_motor_off(void *arg); |
| 266 | void fd_motor_on(void *arg); |
| 267 | int fdcresult(struct fdc_softc *fdc); |
| 268 | void fdcstart(struct fdc_softc *fdc); |
| 269 | void fdcstatus(device_t, int, const char *); |
| 270 | void fdctimeout(void *arg); |
| 271 | void fdcretry(struct fdc_softc *fdc); |
| 272 | void fdfinish(struct fd_softc *fd, struct buf *bp); |
| 273 | static const struct fd_type *fd_dev_to_type(struct fd_softc *, dev_t); |
| 274 | int fdformat(dev_t, struct ne7_fd_formb *, struct lwp *); |
| 275 | static void fd_set_geometry(struct fd_softc *fd); |
| 276 | |
| 277 | void fd_mountroot_hook(device_t); |
| 278 | |
| 279 | /* |
| 280 | * Arguments passed between fdcattach and fdprobe. |
| 281 | */ |
| 282 | struct fdc_attach_args { |
| 283 | int fa_drive; |
| 284 | const struct fd_type *fa_deftype; |
| 285 | }; |
| 286 | |
| 287 | /* |
| 288 | * Print the location of a disk drive (called just before attaching the |
| 289 | * the drive). If `fdc' is not NULL, the drive was found but was not |
| 290 | * in the system config file; print the drive name as well. |
| 291 | * Return QUIET (config_find ignores this if the device was configured) to |
| 292 | * avoid printing `fdN not configured' messages. |
| 293 | */ |
| 294 | int |
| 295 | fdprint(void *aux, const char *fdc) |
| 296 | { |
| 297 | struct fdc_attach_args *fa = aux; |
| 298 | |
| 299 | if (!fdc) |
| 300 | aprint_normal(" drive %d" , fa->fa_drive); |
| 301 | return QUIET; |
| 302 | } |
| 303 | |
| 304 | static bool |
| 305 | fdcresume(device_t self, const pmf_qual_t *qual) |
| 306 | { |
| 307 | struct fdc_softc *fdc = device_private(self); |
| 308 | |
| 309 | mutex_enter(&fdc->sc_mtx); |
| 310 | (void)fdcintr1(fdc); |
| 311 | mutex_exit(&fdc->sc_mtx); |
| 312 | return true; |
| 313 | } |
| 314 | |
| 315 | static bool |
| 316 | fdcsuspend(device_t self, const pmf_qual_t *qual) |
| 317 | { |
| 318 | struct fdc_softc *fdc = device_private(self); |
| 319 | int drive; |
| 320 | struct fd_softc *fd; |
| 321 | |
| 322 | mutex_enter(&fdc->sc_mtx); |
| 323 | while (fdc->sc_state != DEVIDLE) |
| 324 | cv_wait(&fdc->sc_cv, &fdc->sc_mtx); |
| 325 | for (drive = 0; drive < 4; drive++) { |
| 326 | if ((fd = fdc->sc_fd[drive]) == NULL) |
| 327 | continue; |
| 328 | fd->sc_flags &= ~(FD_MOTOR|FD_MOTOR_WAIT); |
| 329 | } |
| 330 | fd_set_motor(fdc, 0); |
| 331 | mutex_exit(&fdc->sc_mtx); |
| 332 | return true; |
| 333 | } |
| 334 | |
| 335 | void |
| 336 | fdc_childdet(device_t self, device_t child) |
| 337 | { |
| 338 | struct fdc_softc *fdc = device_private(self); |
| 339 | struct fd_softc *fd = device_private(child); |
| 340 | int drive = fd->sc_drive; |
| 341 | |
| 342 | KASSERT(fdc->sc_fd[drive] == fd); /* but the kid is not my son */ |
| 343 | fdc->sc_fd[drive] = NULL; |
| 344 | } |
| 345 | |
| 346 | int |
| 347 | fdcdetach(device_t self, int flags) |
| 348 | { |
| 349 | int rc; |
| 350 | struct fdc_softc *fdc = device_private(self); |
| 351 | |
| 352 | if ((rc = config_detach_children(self, flags)) != 0) |
| 353 | return rc; |
| 354 | |
| 355 | pmf_device_deregister(self); |
| 356 | |
| 357 | isa_dmamap_destroy(fdc->sc_ic, fdc->sc_drq); |
| 358 | isa_drq_free(fdc->sc_ic, fdc->sc_drq); |
| 359 | |
| 360 | callout_destroy(&fdc->sc_intr_ch); |
| 361 | callout_destroy(&fdc->sc_timo_ch); |
| 362 | |
| 363 | cv_destroy(&fdc->sc_cv); |
| 364 | mutex_destroy(&fdc->sc_mtx); |
| 365 | |
| 366 | return 0; |
| 367 | } |
| 368 | |
| 369 | void |
| 370 | fdcattach(struct fdc_softc *fdc) |
| 371 | { |
| 372 | mutex_init(&fdc->sc_mtx, MUTEX_DEFAULT, IPL_BIO); |
| 373 | cv_init(&fdc->sc_cv, "fdcwake" ); |
| 374 | callout_init(&fdc->sc_timo_ch, 0); |
| 375 | callout_init(&fdc->sc_intr_ch, 0); |
| 376 | |
| 377 | fdc->sc_state = DEVIDLE; |
| 378 | TAILQ_INIT(&fdc->sc_drives); |
| 379 | |
| 380 | fdc->sc_maxiosize = isa_dmamaxsize(fdc->sc_ic, fdc->sc_drq); |
| 381 | |
| 382 | if (isa_drq_alloc(fdc->sc_ic, fdc->sc_drq) != 0) { |
| 383 | aprint_normal_dev(fdc->sc_dev, "can't reserve drq %d\n" , |
| 384 | fdc->sc_drq); |
| 385 | return; |
| 386 | } |
| 387 | |
| 388 | if (isa_dmamap_create(fdc->sc_ic, fdc->sc_drq, fdc->sc_maxiosize, |
| 389 | BUS_DMA_NOWAIT|BUS_DMA_ALLOCNOW)) { |
| 390 | aprint_normal_dev(fdc->sc_dev, "can't set up ISA DMA map\n" ); |
| 391 | return; |
| 392 | } |
| 393 | |
| 394 | config_interrupts(fdc->sc_dev, fdcfinishattach); |
| 395 | |
| 396 | if (!pmf_device_register(fdc->sc_dev, fdcsuspend, fdcresume)) { |
| 397 | aprint_error_dev(fdc->sc_dev, |
| 398 | "cannot set power mgmt handler\n" ); |
| 399 | } |
| 400 | } |
| 401 | |
| 402 | void |
| 403 | fdcfinishattach(device_t self) |
| 404 | { |
| 405 | struct fdc_softc *fdc = device_private(self); |
| 406 | bus_space_tag_t iot = fdc->sc_iot; |
| 407 | bus_space_handle_t ioh = fdc->sc_ioh; |
| 408 | struct fdc_attach_args fa; |
| 409 | |
| 410 | /* |
| 411 | * Reset the controller to get it into a known state. Not all |
| 412 | * probes necessarily need do this to discover the controller up |
| 413 | * front, so don't assume anything. |
| 414 | */ |
| 415 | |
| 416 | bus_space_write_1(iot, ioh, fdout, 0); |
| 417 | delay(100); |
| 418 | bus_space_write_1(iot, ioh, fdout, FDO_FRST); |
| 419 | |
| 420 | /* see if it can handle a command */ |
| 421 | if (out_fdc(iot, ioh, NE7CMD_SPECIFY) < 0) { |
| 422 | aprint_normal_dev(fdc->sc_dev, "can't reset controller\n" ); |
| 423 | return; |
| 424 | } |
| 425 | out_fdc(iot, ioh, 0xdf); |
| 426 | out_fdc(iot, ioh, 2); |
| 427 | |
| 428 | #if defined(i386) || defined(x86_64) |
| 429 | /* |
| 430 | * The NVRAM info only tells us about the first two disks on the |
| 431 | * `primary' floppy controller. |
| 432 | */ |
| 433 | /* XXX device_unit() abuse */ |
| 434 | if (device_unit(fdc->sc_dev) == 0) { |
| 435 | int type = mc146818_read(NULL, NVRAM_DISKETTE); /* XXX softc */ |
| 436 | fdc->sc_known = 1; |
| 437 | fdc->sc_knownfds[0] = fd_nvtotype(device_xname(fdc->sc_dev), |
| 438 | type, 0); |
| 439 | if (fdc->sc_knownfds[0] != NULL) |
| 440 | fdc->sc_present |= 1; |
| 441 | fdc->sc_knownfds[1] = fd_nvtotype(device_xname(fdc->sc_dev), |
| 442 | type, 1); |
| 443 | if (fdc->sc_knownfds[1] != NULL) |
| 444 | fdc->sc_present |= 2; |
| 445 | } |
| 446 | #endif /* i386 || x86_64 */ |
| 447 | |
| 448 | /* physical limit: four drives per controller. */ |
| 449 | fdc->sc_state = PROBING; |
| 450 | for (fa.fa_drive = 0; fa.fa_drive < 4; fa.fa_drive++) { |
| 451 | if (fdc->sc_known) { |
| 452 | if (fdc->sc_present & (1 << fa.fa_drive)) { |
| 453 | fa.fa_deftype = fdc->sc_knownfds[fa.fa_drive]; |
| 454 | config_found(fdc->sc_dev, (void *)&fa, |
| 455 | fdprint); |
| 456 | } |
| 457 | } else { |
| 458 | #if defined(atari) |
| 459 | /* |
| 460 | * Atari has a different ordening, defaults to 1.44 |
| 461 | */ |
| 462 | fa.fa_deftype = &fd_types[2]; |
| 463 | #else |
| 464 | /* |
| 465 | * Default to 1.44MB on Alpha and BeBox. How do we tell |
| 466 | * on these platforms? |
| 467 | */ |
| 468 | fa.fa_deftype = &fd_types[0]; |
| 469 | #endif |
| 470 | (void)config_found_ia(fdc->sc_dev, "fdc" , (void *)&fa, fdprint); |
| 471 | } |
| 472 | } |
| 473 | fdc->sc_state = DEVIDLE; |
| 474 | } |
| 475 | |
| 476 | int |
| 477 | fdprobe(device_t parent, cfdata_t match, void *aux) |
| 478 | { |
| 479 | struct fdc_softc *fdc = device_private(parent); |
| 480 | cfdata_t cf = match; |
| 481 | struct fdc_attach_args *fa = aux; |
| 482 | int drive = fa->fa_drive; |
| 483 | bus_space_tag_t iot = fdc->sc_iot; |
| 484 | bus_space_handle_t ioh = fdc->sc_ioh; |
| 485 | int n; |
| 486 | |
| 487 | if (cf->cf_loc[FDCCF_DRIVE] != FDCCF_DRIVE_DEFAULT && |
| 488 | cf->cf_loc[FDCCF_DRIVE] != drive) |
| 489 | return 0; |
| 490 | /* |
| 491 | * XXX |
| 492 | * This is to work around some odd interactions between this driver |
| 493 | * and SMC Ethernet cards. |
| 494 | */ |
| 495 | if (cf->cf_loc[FDCCF_DRIVE] == FDCCF_DRIVE_DEFAULT && drive >= 2) |
| 496 | return 0; |
| 497 | |
| 498 | /* Use PNP information if available */ |
| 499 | if (fdc->sc_known) |
| 500 | return 1; |
| 501 | |
| 502 | mutex_enter(&fdc->sc_mtx); |
| 503 | /* toss any interrupt status */ |
| 504 | for (n = 0; n < 4; n++) { |
| 505 | out_fdc(iot, ioh, NE7CMD_SENSEI); |
| 506 | (void) fdcresult(fdc); |
| 507 | } |
| 508 | /* select drive and turn on motor */ |
| 509 | bus_space_write_1(iot, ioh, fdout, drive | FDO_FRST | FDO_MOEN(drive)); |
| 510 | /* wait for motor to spin up */ |
| 511 | /* XXX check sc_probe */ |
| 512 | (void) cv_timedwait(&fdc->sc_cv, &fdc->sc_mtx, hz / 4); |
| 513 | out_fdc(iot, ioh, NE7CMD_RECAL); |
| 514 | out_fdc(iot, ioh, drive); |
| 515 | /* wait for recalibrate, up to 2s */ |
| 516 | /* XXX check sc_probe */ |
| 517 | if (cv_timedwait(&fdc->sc_cv, &fdc->sc_mtx, 2 * hz) != EWOULDBLOCK){ |
| 518 | #ifdef FD_DEBUG |
| 519 | /* XXX */ |
| 520 | printf("fdprobe: got intr\n" ); |
| 521 | #endif |
| 522 | } |
| 523 | out_fdc(iot, ioh, NE7CMD_SENSEI); |
| 524 | n = fdcresult(fdc); |
| 525 | #ifdef FD_DEBUG |
| 526 | { |
| 527 | int i; |
| 528 | printf("fdprobe: status" ); |
| 529 | for (i = 0; i < n; i++) |
| 530 | printf(" %x" , fdc->sc_status[i]); |
| 531 | printf("\n" ); |
| 532 | } |
| 533 | #endif |
| 534 | /* turn off motor */ |
| 535 | bus_space_write_1(iot, ioh, fdout, FDO_FRST); |
| 536 | mutex_exit(&fdc->sc_mtx); |
| 537 | |
| 538 | #if defined(bebox) /* XXX What is this about? --thorpej@NetBSD.org */ |
| 539 | if (n != 2 || (fdc->sc_status[1] != 0)) |
| 540 | return 0; |
| 541 | #else |
| 542 | if (n != 2 || (fdc->sc_status[0] & 0xf8) != 0x20) |
| 543 | return 0; |
| 544 | #endif /* bebox */ |
| 545 | |
| 546 | return 1; |
| 547 | } |
| 548 | |
| 549 | /* |
| 550 | * Controller is working, and drive responded. Attach it. |
| 551 | */ |
| 552 | void |
| 553 | fdattach(device_t parent, device_t self, void *aux) |
| 554 | { |
| 555 | struct fdc_softc *fdc = device_private(parent); |
| 556 | struct fd_softc *fd = device_private(self); |
| 557 | struct fdc_attach_args *fa = aux; |
| 558 | const struct fd_type *type = fa->fa_deftype; |
| 559 | int drive = fa->fa_drive; |
| 560 | |
| 561 | fd->sc_dev = self; |
| 562 | |
| 563 | callout_init(&fd->sc_motoron_ch, 0); |
| 564 | callout_init(&fd->sc_motoroff_ch, 0); |
| 565 | |
| 566 | /* XXX Allow `flags' to override device type? */ |
| 567 | |
| 568 | if (type) |
| 569 | aprint_normal(": %s, %d cyl, %d head, %d sec\n" , type->name, |
| 570 | type->cyls, type->heads, type->sectrac); |
| 571 | else |
| 572 | aprint_normal(": density unknown\n" ); |
| 573 | |
| 574 | bufq_alloc(&fd->sc_q, "disksort" , BUFQ_SORT_CYLINDER); |
| 575 | fd->sc_cylin = -1; |
| 576 | fd->sc_drive = drive; |
| 577 | fd->sc_deftype = type; |
| 578 | fdc->sc_fd[drive] = fd; |
| 579 | |
| 580 | /* |
| 581 | * Initialize and attach the disk structure. |
| 582 | */ |
| 583 | disk_init(&fd->sc_dk, device_xname(fd->sc_dev), &fddkdriver); |
| 584 | disk_attach(&fd->sc_dk); |
| 585 | |
| 586 | /* |
| 587 | * Establish a mountroot hook. |
| 588 | */ |
| 589 | fd->sc_roothook = |
| 590 | mountroothook_establish(fd_mountroot_hook, fd->sc_dev); |
| 591 | |
| 592 | rnd_attach_source(&fd->rnd_source, device_xname(fd->sc_dev), |
| 593 | RND_TYPE_DISK, RND_FLAG_DEFAULT); |
| 594 | |
| 595 | fd_set_geometry(fd); |
| 596 | |
| 597 | if (!pmf_device_register(self, NULL, NULL)) |
| 598 | aprint_error_dev(self, "cannot set power mgmt handler\n" ); |
| 599 | } |
| 600 | |
| 601 | static int |
| 602 | fddetach(device_t self, int flags) |
| 603 | { |
| 604 | struct fd_softc *fd = device_private(self); |
| 605 | int bmaj, cmaj, i, mn; |
| 606 | |
| 607 | fd_motor_off(fd); |
| 608 | |
| 609 | /* locate the major number */ |
| 610 | bmaj = bdevsw_lookup_major(&fd_bdevsw); |
| 611 | cmaj = cdevsw_lookup_major(&fd_cdevsw); |
| 612 | |
| 613 | /* Nuke the vnodes for any open instances. */ |
| 614 | for (i = 0; i < MAXPARTITIONS; i++) { |
| 615 | mn = DISKMINOR(device_unit(self), i); |
| 616 | vdevgone(bmaj, mn, mn, VBLK); |
| 617 | vdevgone(cmaj, mn, mn, VCHR); |
| 618 | } |
| 619 | |
| 620 | pmf_device_deregister(self); |
| 621 | |
| 622 | #if 0 /* XXX need to undo at detach? */ |
| 623 | fd_set_geometry(fd); |
| 624 | #endif |
| 625 | |
| 626 | rnd_detach_source(&fd->rnd_source); |
| 627 | |
| 628 | disk_detach(&fd->sc_dk); |
| 629 | disk_destroy(&fd->sc_dk); |
| 630 | |
| 631 | /* Kill off any queued buffers. */ |
| 632 | bufq_drain(fd->sc_q); |
| 633 | |
| 634 | bufq_free(fd->sc_q); |
| 635 | |
| 636 | callout_destroy(&fd->sc_motoroff_ch); |
| 637 | callout_destroy(&fd->sc_motoron_ch); |
| 638 | |
| 639 | return 0; |
| 640 | } |
| 641 | |
| 642 | #if defined(i386) || defined(x86_64) |
| 643 | /* |
| 644 | * Translate nvram type into internal data structure. Return NULL for |
| 645 | * none/unknown/unusable. |
| 646 | */ |
| 647 | const struct fd_type * |
| 648 | fd_nvtotype(const char *fdc, int nvraminfo, int drive) |
| 649 | { |
| 650 | int type; |
| 651 | |
| 652 | type = (drive == 0 ? nvraminfo : nvraminfo << 4) & 0xf0; |
| 653 | switch (type) { |
| 654 | case NVRAM_DISKETTE_NONE: |
| 655 | return NULL; |
| 656 | case NVRAM_DISKETTE_12M: |
| 657 | return &fd_types[1]; |
| 658 | case NVRAM_DISKETTE_TYPE5: |
| 659 | case NVRAM_DISKETTE_TYPE6: |
| 660 | /* XXX We really ought to handle 2.88MB format. */ |
| 661 | case NVRAM_DISKETTE_144M: |
| 662 | #if NMCA > 0 |
| 663 | if (MCA_system) |
| 664 | return &mca_fd_types[0]; |
| 665 | else |
| 666 | #endif /* NMCA > 0 */ |
| 667 | return &fd_types[0]; |
| 668 | case NVRAM_DISKETTE_360K: |
| 669 | return &fd_types[3]; |
| 670 | case NVRAM_DISKETTE_720K: |
| 671 | #if NMCA > 0 |
| 672 | if (MCA_system) |
| 673 | return &mca_fd_types[1]; |
| 674 | else |
| 675 | #endif /* NMCA > 0 */ |
| 676 | return &fd_types[4]; |
| 677 | default: |
| 678 | printf("%s: drive %d: unknown device type 0x%x\n" , |
| 679 | fdc, drive, type); |
| 680 | return NULL; |
| 681 | } |
| 682 | } |
| 683 | #endif /* i386 || x86_64 */ |
| 684 | |
| 685 | static const struct fd_type * |
| 686 | fd_dev_to_type(struct fd_softc *fd, dev_t dev) |
| 687 | { |
| 688 | u_int type = FDTYPE(dev); |
| 689 | |
| 690 | if (type > __arraycount(fd_types)) |
| 691 | return NULL; |
| 692 | return type ? &fd_types[type - 1] : fd->sc_deftype; |
| 693 | } |
| 694 | |
| 695 | void |
| 696 | fdstrategy(struct buf *bp) |
| 697 | { |
| 698 | struct fd_softc *fd = device_lookup_private(&fd_cd, FDUNIT(bp->b_dev)); |
| 699 | struct fdc_softc *fdc = device_private(device_parent(fd->sc_dev)); |
| 700 | int sz; |
| 701 | |
| 702 | /* Valid unit, controller, and request? */ |
| 703 | if (bp->b_blkno < 0 || |
| 704 | ((bp->b_bcount % FDC_BSIZE) != 0 && |
| 705 | (bp->b_flags & B_FORMAT) == 0)) { |
| 706 | bp->b_error = EINVAL; |
| 707 | goto done; |
| 708 | } |
| 709 | |
| 710 | /* If it's a null transfer, return immediately. */ |
| 711 | if (bp->b_bcount == 0) |
| 712 | goto done; |
| 713 | |
| 714 | sz = howmany(bp->b_bcount, FDC_BSIZE); |
| 715 | |
| 716 | if (bp->b_blkno + sz > fd->sc_type->size) { |
| 717 | sz = fd->sc_type->size - bp->b_blkno; |
| 718 | if (sz == 0) { |
| 719 | /* If exactly at end of disk, return EOF. */ |
| 720 | goto done; |
| 721 | } |
| 722 | if (sz < 0) { |
| 723 | /* If past end of disk, return EINVAL. */ |
| 724 | bp->b_error = EINVAL; |
| 725 | goto done; |
| 726 | } |
| 727 | /* Otherwise, truncate request. */ |
| 728 | bp->b_bcount = sz << DEV_BSHIFT; |
| 729 | } |
| 730 | |
| 731 | bp->b_rawblkno = bp->b_blkno; |
| 732 | bp->b_cylinder = |
| 733 | bp->b_blkno / (FDC_BSIZE / DEV_BSIZE) / fd->sc_type->seccyl; |
| 734 | |
| 735 | #ifdef FD_DEBUG |
| 736 | printf("fdstrategy: b_blkno %llu b_bcount %d blkno %llu cylin %d " |
| 737 | "sz %d\n" , (unsigned long long)bp->b_blkno, bp->b_bcount, |
| 738 | (unsigned long long)fd->sc_blkno, bp->b_cylinder, sz); |
| 739 | #endif |
| 740 | |
| 741 | /* Queue transfer on drive, activate drive and controller if idle. */ |
| 742 | mutex_enter(&fdc->sc_mtx); |
| 743 | bufq_put(fd->sc_q, bp); |
| 744 | callout_stop(&fd->sc_motoroff_ch); /* a good idea */ |
| 745 | if (fd->sc_active == 0) |
| 746 | fdstart(fd); |
| 747 | #ifdef DIAGNOSTIC |
| 748 | else { |
| 749 | if (fdc->sc_state == DEVIDLE) { |
| 750 | printf("fdstrategy: controller inactive\n" ); |
| 751 | fdcstart(fdc); |
| 752 | } |
| 753 | } |
| 754 | #endif |
| 755 | mutex_exit(&fdc->sc_mtx); |
| 756 | return; |
| 757 | |
| 758 | done: |
| 759 | /* Toss transfer; we're done early. */ |
| 760 | bp->b_resid = bp->b_bcount; |
| 761 | biodone(bp); |
| 762 | } |
| 763 | |
| 764 | void |
| 765 | fdstart(struct fd_softc *fd) |
| 766 | { |
| 767 | struct fdc_softc *fdc = device_private(device_parent(fd->sc_dev)); |
| 768 | int active = !TAILQ_EMPTY(&fdc->sc_drives); |
| 769 | |
| 770 | KASSERT(mutex_owned(&fdc->sc_mtx)); |
| 771 | /* Link into controller queue. */ |
| 772 | fd->sc_active = 1; |
| 773 | TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); |
| 774 | |
| 775 | /* If controller not already active, start it. */ |
| 776 | if (!active) |
| 777 | fdcstart(fdc); |
| 778 | } |
| 779 | |
| 780 | void |
| 781 | fdfinish(struct fd_softc *fd, struct buf *bp) |
| 782 | { |
| 783 | struct fdc_softc *fdc = device_private(device_parent(fd->sc_dev)); |
| 784 | |
| 785 | /* |
| 786 | * Move this drive to the end of the queue to give others a `fair' |
| 787 | * chance. We only force a switch if N operations are completed while |
| 788 | * another drive is waiting to be serviced, since there is a long motor |
| 789 | * startup delay whenever we switch. |
| 790 | */ |
| 791 | (void)bufq_get(fd->sc_q); |
| 792 | if (TAILQ_NEXT(fd, sc_drivechain) && ++fd->sc_ops >= 8) { |
| 793 | fd->sc_ops = 0; |
| 794 | TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); |
| 795 | if (bufq_peek(fd->sc_q) != NULL) |
| 796 | TAILQ_INSERT_TAIL(&fdc->sc_drives, fd, sc_drivechain); |
| 797 | else |
| 798 | fd->sc_active = 0; |
| 799 | } |
| 800 | bp->b_resid = fd->sc_bcount; |
| 801 | fd->sc_skip = 0; |
| 802 | |
| 803 | rnd_add_uint32(&fd->rnd_source, bp->b_blkno); |
| 804 | |
| 805 | biodone(bp); |
| 806 | /* turn off motor 5s from now */ |
| 807 | callout_reset(&fd->sc_motoroff_ch, 5 * hz, fd_motor_off, fd); |
| 808 | fdc->sc_state = DEVIDLE; |
| 809 | } |
| 810 | |
| 811 | int |
| 812 | fdread(dev_t dev, struct uio *uio, int flags) |
| 813 | { |
| 814 | |
| 815 | return (physio(fdstrategy, NULL, dev, B_READ, minphys, uio)); |
| 816 | } |
| 817 | |
| 818 | int |
| 819 | fdwrite(dev_t dev, struct uio *uio, int flags) |
| 820 | { |
| 821 | |
| 822 | return (physio(fdstrategy, NULL, dev, B_WRITE, minphys, uio)); |
| 823 | } |
| 824 | |
| 825 | void |
| 826 | fd_set_motor(struct fdc_softc *fdc, int reset) |
| 827 | { |
| 828 | struct fd_softc *fd; |
| 829 | u_char status; |
| 830 | int n; |
| 831 | |
| 832 | if ((fd = TAILQ_FIRST(&fdc->sc_drives)) != NULL) |
| 833 | status = fd->sc_drive; |
| 834 | else |
| 835 | status = 0; |
| 836 | if (!reset) |
| 837 | status |= FDO_FRST | FDO_FDMAEN; |
| 838 | for (n = 0; n < 4; n++) |
| 839 | if ((fd = fdc->sc_fd[n]) && (fd->sc_flags & FD_MOTOR)) |
| 840 | status |= FDO_MOEN(n); |
| 841 | bus_space_write_1(fdc->sc_iot, fdc->sc_ioh, fdout, status); |
| 842 | } |
| 843 | |
| 844 | void |
| 845 | fd_motor_off(void *arg) |
| 846 | { |
| 847 | struct fd_softc *fd = arg; |
| 848 | struct fdc_softc *fdc; |
| 849 | |
| 850 | fdc = device_private(device_parent(fd->sc_dev)); |
| 851 | |
| 852 | mutex_enter(&fdc->sc_mtx); |
| 853 | fd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); |
| 854 | fd_set_motor(fdc, 0); |
| 855 | mutex_exit(&fdc->sc_mtx); |
| 856 | } |
| 857 | |
| 858 | void |
| 859 | fd_motor_on(void *arg) |
| 860 | { |
| 861 | struct fd_softc *fd = arg; |
| 862 | struct fdc_softc *fdc = device_private(device_parent(fd->sc_dev)); |
| 863 | |
| 864 | mutex_enter(&fdc->sc_mtx); |
| 865 | fd->sc_flags &= ~FD_MOTOR_WAIT; |
| 866 | if (TAILQ_FIRST(&fdc->sc_drives) == fd && fdc->sc_state == MOTORWAIT) |
| 867 | (void)fdcintr1(fdc); |
| 868 | mutex_exit(&fdc->sc_mtx); |
| 869 | } |
| 870 | |
| 871 | int |
| 872 | fdcresult(struct fdc_softc *fdc) |
| 873 | { |
| 874 | bus_space_tag_t iot = fdc->sc_iot; |
| 875 | bus_space_handle_t ioh = fdc->sc_ioh; |
| 876 | u_char i; |
| 877 | u_int j = 100000, |
| 878 | n = 0; |
| 879 | |
| 880 | for (; j; j--) { |
| 881 | i = bus_space_read_1(iot, ioh, fdsts) & |
| 882 | (NE7_DIO | NE7_RQM | NE7_CB); |
| 883 | if (i == NE7_RQM) |
| 884 | return n; |
| 885 | if (i == (NE7_DIO | NE7_RQM | NE7_CB)) { |
| 886 | if (n >= sizeof(fdc->sc_status)) { |
| 887 | log(LOG_ERR, "fdcresult: overrun\n" ); |
| 888 | return -1; |
| 889 | } |
| 890 | fdc->sc_status[n++] = |
| 891 | bus_space_read_1(iot, ioh, fddata); |
| 892 | } |
| 893 | delay(10); |
| 894 | } |
| 895 | log(LOG_ERR, "fdcresult: timeout\n" ); |
| 896 | return -1; |
| 897 | } |
| 898 | |
| 899 | int |
| 900 | out_fdc(bus_space_tag_t iot, bus_space_handle_t ioh, u_char x) |
| 901 | { |
| 902 | u_char i; |
| 903 | u_int j = 100000; |
| 904 | |
| 905 | for (; j; j--) { |
| 906 | i = bus_space_read_1(iot, ioh, fdsts) & |
| 907 | (NE7_DIO | NE7_RQM); |
| 908 | if (i == NE7_RQM) { |
| 909 | bus_space_write_1(iot, ioh, fddata, x); |
| 910 | return 0; |
| 911 | } |
| 912 | delay(10); |
| 913 | } |
| 914 | return -1; |
| 915 | } |
| 916 | |
| 917 | int |
| 918 | fdopen(dev_t dev, int flags, int mode, struct lwp *l) |
| 919 | { |
| 920 | struct fd_softc *fd; |
| 921 | const struct fd_type *type; |
| 922 | |
| 923 | fd = device_lookup_private(&fd_cd, FDUNIT(dev)); |
| 924 | if (fd == NULL) |
| 925 | return (ENXIO); |
| 926 | |
| 927 | type = fd_dev_to_type(fd, dev); |
| 928 | if (type == NULL) |
| 929 | return ENXIO; |
| 930 | |
| 931 | if ((fd->sc_flags & FD_OPEN) != 0 && |
| 932 | memcmp(fd->sc_type, type, sizeof(*type))) |
| 933 | return EBUSY; |
| 934 | |
| 935 | fd->sc_type_copy = *type; |
| 936 | fd->sc_type = &fd->sc_type_copy; |
| 937 | fd->sc_cylin = -1; |
| 938 | fd->sc_flags |= FD_OPEN; |
| 939 | |
| 940 | fd_set_geometry(fd); |
| 941 | |
| 942 | return 0; |
| 943 | } |
| 944 | |
| 945 | int |
| 946 | fdclose(dev_t dev, int flags, int mode, struct lwp *l) |
| 947 | { |
| 948 | struct fd_softc *fd = |
| 949 | device_lookup_private(&fd_cd, FDUNIT(dev)); |
| 950 | |
| 951 | fd->sc_flags &= ~FD_OPEN; |
| 952 | fd->sc_opts &= ~(FDOPT_NORETRY|FDOPT_SILENT); |
| 953 | return 0; |
| 954 | } |
| 955 | |
| 956 | void |
| 957 | fdcstart(struct fdc_softc *fdc) |
| 958 | { |
| 959 | |
| 960 | KASSERT(mutex_owned(&fdc->sc_mtx)); |
| 961 | |
| 962 | if (!device_is_active(fdc->sc_dev)) |
| 963 | return; |
| 964 | |
| 965 | #ifdef DIAGNOSTIC |
| 966 | /* only got here if controller's drive queue was inactive; should |
| 967 | be in idle state */ |
| 968 | if (fdc->sc_state != DEVIDLE) { |
| 969 | printf("fdcstart: not idle\n" ); |
| 970 | return; |
| 971 | } |
| 972 | #endif |
| 973 | (void)fdcintr1(fdc); |
| 974 | } |
| 975 | |
| 976 | static void |
| 977 | fdcpstatus(int n, struct fdc_softc *fdc) |
| 978 | { |
| 979 | char bits[64]; |
| 980 | |
| 981 | switch (n) { |
| 982 | case 0: |
| 983 | printf("\n" ); |
| 984 | break; |
| 985 | case 2: |
| 986 | snprintb(bits, sizeof(bits), NE7_ST0BITS, fdc->sc_status[0]); |
| 987 | printf(" (st0 %s cyl %d)\n" , bits, fdc->sc_status[1]); |
| 988 | break; |
| 989 | case 7: |
| 990 | snprintb(bits, sizeof(bits), NE7_ST0BITS, fdc->sc_status[0]); |
| 991 | printf(" (st0 %s" , bits); |
| 992 | snprintb(bits, sizeof(bits), NE7_ST1BITS, fdc->sc_status[1]); |
| 993 | printf(" st1 %s" , bits); |
| 994 | snprintb(bits, sizeof(bits), NE7_ST2BITS, fdc->sc_status[2]); |
| 995 | printf(" st2 %s" , bits); |
| 996 | printf(" cyl %d head %d sec %d)\n" , |
| 997 | fdc->sc_status[3], fdc->sc_status[4], fdc->sc_status[5]); |
| 998 | break; |
| 999 | #ifdef DIAGNOSTIC |
| 1000 | default: |
| 1001 | printf("\nfdcstatus: weird size" ); |
| 1002 | break; |
| 1003 | #endif |
| 1004 | } |
| 1005 | } |
| 1006 | |
| 1007 | void |
| 1008 | fdcstatus(device_t dv, int n, const char *s) |
| 1009 | { |
| 1010 | struct fdc_softc *fdc = device_private(device_parent(dv)); |
| 1011 | |
| 1012 | if (n == 0) { |
| 1013 | out_fdc(fdc->sc_iot, fdc->sc_ioh, NE7CMD_SENSEI); |
| 1014 | (void) fdcresult(fdc); |
| 1015 | n = 2; |
| 1016 | } |
| 1017 | fdcpstatus(n, fdc); |
| 1018 | |
| 1019 | aprint_normal_dev(dv, "%s" , s); |
| 1020 | |
| 1021 | } |
| 1022 | |
| 1023 | void |
| 1024 | fdctimeout(void *arg) |
| 1025 | { |
| 1026 | struct fdc_softc *fdc = arg; |
| 1027 | struct fd_softc *fd = TAILQ_FIRST(&fdc->sc_drives); |
| 1028 | |
| 1029 | mutex_enter(&fdc->sc_mtx); |
| 1030 | #ifdef DEBUG |
| 1031 | log(LOG_ERR, "fdctimeout: state %d\n" , fdc->sc_state); |
| 1032 | #endif |
| 1033 | fdcstatus(fd->sc_dev, 0, "timeout" ); |
| 1034 | |
| 1035 | if (bufq_peek(fd->sc_q) != NULL) |
| 1036 | fdc->sc_state++; |
| 1037 | else |
| 1038 | fdc->sc_state = DEVIDLE; |
| 1039 | |
| 1040 | (void)fdcintr1(fdc); |
| 1041 | mutex_exit(&fdc->sc_mtx); |
| 1042 | } |
| 1043 | |
| 1044 | static int |
| 1045 | fdcintr1(struct fdc_softc *fdc) |
| 1046 | { |
| 1047 | #define st0 fdc->sc_status[0] |
| 1048 | #define cyl fdc->sc_status[1] |
| 1049 | struct fd_softc *fd; |
| 1050 | struct buf *bp; |
| 1051 | bus_space_tag_t iot = fdc->sc_iot; |
| 1052 | bus_space_handle_t ioh = fdc->sc_ioh; |
| 1053 | int read, head, sec, i, nblks; |
| 1054 | struct fd_type *type; |
| 1055 | struct ne7_fd_formb *finfo = NULL; |
| 1056 | |
| 1057 | KASSERT(mutex_owned(&fdc->sc_mtx)); |
| 1058 | if (fdc->sc_state == PROBING) { |
| 1059 | #ifdef DEBUG |
| 1060 | printf("fdcintr: got probe interrupt\n" ); |
| 1061 | #endif |
| 1062 | fdc->sc_probe++; |
| 1063 | goto out; |
| 1064 | } |
| 1065 | |
| 1066 | loop: |
| 1067 | /* Is there a drive for the controller to do a transfer with? */ |
| 1068 | fd = TAILQ_FIRST(&fdc->sc_drives); |
| 1069 | if (fd == NULL) { |
| 1070 | fdc->sc_state = DEVIDLE; |
| 1071 | goto out; |
| 1072 | } |
| 1073 | |
| 1074 | /* Is there a transfer to this drive? If not, deactivate drive. */ |
| 1075 | bp = bufq_peek(fd->sc_q); |
| 1076 | if (bp == NULL) { |
| 1077 | fd->sc_ops = 0; |
| 1078 | TAILQ_REMOVE(&fdc->sc_drives, fd, sc_drivechain); |
| 1079 | fd->sc_active = 0; |
| 1080 | goto loop; |
| 1081 | } |
| 1082 | |
| 1083 | if (bp->b_flags & B_FORMAT) |
| 1084 | finfo = (struct ne7_fd_formb *)bp->b_data; |
| 1085 | |
| 1086 | switch (fdc->sc_state) { |
| 1087 | case DEVIDLE: |
| 1088 | fdc->sc_errors = 0; |
| 1089 | fd->sc_skip = 0; |
| 1090 | fd->sc_bcount = bp->b_bcount; |
| 1091 | fd->sc_blkno = bp->b_blkno / (FDC_BSIZE / DEV_BSIZE); |
| 1092 | callout_stop(&fd->sc_motoroff_ch); |
| 1093 | if ((fd->sc_flags & FD_MOTOR_WAIT) != 0) { |
| 1094 | fdc->sc_state = MOTORWAIT; |
| 1095 | return 1; |
| 1096 | } |
| 1097 | if ((fd->sc_flags & FD_MOTOR) == 0) { |
| 1098 | /* Turn on the motor, being careful about pairing. */ |
| 1099 | struct fd_softc *ofd = fdc->sc_fd[fd->sc_drive ^ 1]; |
| 1100 | if (ofd && ofd->sc_flags & FD_MOTOR) { |
| 1101 | callout_stop(&ofd->sc_motoroff_ch); |
| 1102 | ofd->sc_flags &= ~(FD_MOTOR | FD_MOTOR_WAIT); |
| 1103 | } |
| 1104 | fd->sc_flags |= FD_MOTOR | FD_MOTOR_WAIT; |
| 1105 | fd_set_motor(fdc, 0); |
| 1106 | fdc->sc_state = MOTORWAIT; |
| 1107 | /* Allow .25s for motor to stabilize. */ |
| 1108 | callout_reset(&fd->sc_motoron_ch, hz / 4, |
| 1109 | fd_motor_on, fd); |
| 1110 | return 1; |
| 1111 | } |
| 1112 | /* Make sure the right drive is selected. */ |
| 1113 | fd_set_motor(fdc, 0); |
| 1114 | |
| 1115 | /* fall through */ |
| 1116 | case DOSEEK: |
| 1117 | doseek: |
| 1118 | if (fd->sc_cylin == bp->b_cylinder) |
| 1119 | goto doio; |
| 1120 | |
| 1121 | out_fdc(iot, ioh, NE7CMD_SPECIFY);/* specify command */ |
| 1122 | out_fdc(iot, ioh, fd->sc_type->steprate); |
| 1123 | out_fdc(iot, ioh, 6); /* XXX head load time == 6ms */ |
| 1124 | |
| 1125 | out_fdc(iot, ioh, NE7CMD_SEEK); /* seek function */ |
| 1126 | out_fdc(iot, ioh, fd->sc_drive); /* drive number */ |
| 1127 | out_fdc(iot, ioh, bp->b_cylinder * fd->sc_type->step); |
| 1128 | |
| 1129 | fd->sc_cylin = -1; |
| 1130 | fdc->sc_state = SEEKWAIT; |
| 1131 | |
| 1132 | iostat_seek(fd->sc_dk.dk_stats); |
| 1133 | disk_busy(&fd->sc_dk); |
| 1134 | |
| 1135 | callout_reset(&fdc->sc_timo_ch, 4 * hz, fdctimeout, fdc); |
| 1136 | return 1; |
| 1137 | |
| 1138 | case DOIO: |
| 1139 | doio: |
| 1140 | type = fd->sc_type; |
| 1141 | if (finfo) |
| 1142 | fd->sc_skip = (char *)&(finfo->fd_formb_cylno(0)) - |
| 1143 | (char *)finfo; |
| 1144 | sec = fd->sc_blkno % type->seccyl; |
| 1145 | nblks = type->seccyl - sec; |
| 1146 | nblks = min(nblks, fd->sc_bcount / FDC_BSIZE); |
| 1147 | nblks = min(nblks, fdc->sc_maxiosize / FDC_BSIZE); |
| 1148 | fd->sc_nblks = nblks; |
| 1149 | fd->sc_nbytes = finfo ? bp->b_bcount : nblks * FDC_BSIZE; |
| 1150 | head = sec / type->sectrac; |
| 1151 | sec -= head * type->sectrac; |
| 1152 | #ifdef DIAGNOSTIC |
| 1153 | { |
| 1154 | int block; |
| 1155 | block = (fd->sc_cylin * type->heads + head) |
| 1156 | * type->sectrac + sec; |
| 1157 | if (block != fd->sc_blkno) { |
| 1158 | printf("fdcintr: block %d != blkno " |
| 1159 | "%" PRId64 "\n" , block, fd->sc_blkno); |
| 1160 | #ifdef DDB |
| 1161 | Debugger(); |
| 1162 | #endif |
| 1163 | } |
| 1164 | } |
| 1165 | #endif |
| 1166 | read = bp->b_flags & B_READ ? DMAMODE_READ : DMAMODE_WRITE; |
| 1167 | isa_dmastart(fdc->sc_ic, fdc->sc_drq, |
| 1168 | (char *)bp->b_data + fd->sc_skip, fd->sc_nbytes, |
| 1169 | NULL, read | DMAMODE_DEMAND, BUS_DMA_NOWAIT); |
| 1170 | bus_space_write_1(iot, fdc->sc_fdctlioh, 0, type->rate); |
| 1171 | #ifdef FD_DEBUG |
| 1172 | printf("fdcintr: %s drive %d track %d head %d sec %d nblks %d\n" , |
| 1173 | read ? "read" : "write" , fd->sc_drive, fd->sc_cylin, |
| 1174 | head, sec, nblks); |
| 1175 | #endif |
| 1176 | if (finfo) { |
| 1177 | /* formatting */ |
| 1178 | if (out_fdc(iot, ioh, NE7CMD_FORMAT) < 0) { |
| 1179 | fdc->sc_errors = 4; |
| 1180 | fdcretry(fdc); |
| 1181 | goto loop; |
| 1182 | } |
| 1183 | out_fdc(iot, ioh, (head << 2) | fd->sc_drive); |
| 1184 | out_fdc(iot, ioh, finfo->fd_formb_secshift); |
| 1185 | out_fdc(iot, ioh, finfo->fd_formb_nsecs); |
| 1186 | out_fdc(iot, ioh, finfo->fd_formb_gaplen); |
| 1187 | out_fdc(iot, ioh, finfo->fd_formb_fillbyte); |
| 1188 | } else { |
| 1189 | if (read) |
| 1190 | out_fdc(iot, ioh, NE7CMD_READ); /* READ */ |
| 1191 | else |
| 1192 | out_fdc(iot, ioh, NE7CMD_WRITE); /* WRITE */ |
| 1193 | out_fdc(iot, ioh, (head << 2) | fd->sc_drive); |
| 1194 | out_fdc(iot, ioh, fd->sc_cylin); /* track */ |
| 1195 | out_fdc(iot, ioh, head); |
| 1196 | out_fdc(iot, ioh, sec + 1); /* sector +1 */ |
| 1197 | out_fdc(iot, ioh, type->secsize);/* sector size */ |
| 1198 | out_fdc(iot, ioh, type->sectrac);/* sectors/track */ |
| 1199 | out_fdc(iot, ioh, type->gap1); /* gap1 size */ |
| 1200 | out_fdc(iot, ioh, type->datalen);/* data length */ |
| 1201 | } |
| 1202 | fdc->sc_state = IOCOMPLETE; |
| 1203 | |
| 1204 | disk_busy(&fd->sc_dk); |
| 1205 | |
| 1206 | /* allow 2 seconds for operation */ |
| 1207 | callout_reset(&fdc->sc_timo_ch, 2 * hz, fdctimeout, fdc); |
| 1208 | return 1; /* will return later */ |
| 1209 | |
| 1210 | case SEEKWAIT: |
| 1211 | callout_stop(&fdc->sc_timo_ch); |
| 1212 | fdc->sc_state = SEEKCOMPLETE; |
| 1213 | /* allow 1/50 second for heads to settle */ |
| 1214 | callout_reset(&fdc->sc_intr_ch, hz / 50, fdcintrcb, fdc); |
| 1215 | return 1; |
| 1216 | |
| 1217 | case SEEKCOMPLETE: |
| 1218 | /* no data on seek */ |
| 1219 | disk_unbusy(&fd->sc_dk, 0, 0); |
| 1220 | |
| 1221 | /* Make sure seek really happened. */ |
| 1222 | out_fdc(iot, ioh, NE7CMD_SENSEI); |
| 1223 | if (fdcresult(fdc) != 2 || (st0 & 0xf8) != 0x20 || |
| 1224 | cyl != bp->b_cylinder * fd->sc_type->step) { |
| 1225 | #ifdef FD_DEBUG |
| 1226 | fdcstatus(fd->sc_dev, 2, "seek failed" ); |
| 1227 | #endif |
| 1228 | fdcretry(fdc); |
| 1229 | goto loop; |
| 1230 | } |
| 1231 | fd->sc_cylin = bp->b_cylinder; |
| 1232 | goto doio; |
| 1233 | |
| 1234 | case IOTIMEDOUT: |
| 1235 | isa_dmaabort(fdc->sc_ic, fdc->sc_drq); |
| 1236 | case SEEKTIMEDOUT: |
| 1237 | case RECALTIMEDOUT: |
| 1238 | case RESETTIMEDOUT: |
| 1239 | fdcretry(fdc); |
| 1240 | goto loop; |
| 1241 | |
| 1242 | case IOCOMPLETE: /* IO DONE, post-analyze */ |
| 1243 | callout_stop(&fdc->sc_timo_ch); |
| 1244 | |
| 1245 | disk_unbusy(&fd->sc_dk, (bp->b_bcount - bp->b_resid), |
| 1246 | (bp->b_flags & B_READ)); |
| 1247 | |
| 1248 | if (fdcresult(fdc) != 7 || (st0 & 0xf8) != 0) { |
| 1249 | isa_dmaabort(fdc->sc_ic, fdc->sc_drq); |
| 1250 | #ifdef FD_DEBUG |
| 1251 | fdcstatus(fd->sc_dev, 7, bp->b_flags & B_READ ? |
| 1252 | "read failed" : "write failed" ); |
| 1253 | printf("blkno %llu nblks %d\n" , |
| 1254 | (unsigned long long)fd->sc_blkno, fd->sc_nblks); |
| 1255 | #endif |
| 1256 | fdcretry(fdc); |
| 1257 | goto loop; |
| 1258 | } |
| 1259 | isa_dmadone(fdc->sc_ic, fdc->sc_drq); |
| 1260 | if (fdc->sc_errors) { |
| 1261 | diskerr(bp, "fd" , "soft error (corrected)" , LOG_PRINTF, |
| 1262 | fd->sc_skip / FDC_BSIZE, NULL); |
| 1263 | printf("\n" ); |
| 1264 | fdc->sc_errors = 0; |
| 1265 | } |
| 1266 | fd->sc_blkno += fd->sc_nblks; |
| 1267 | fd->sc_skip += fd->sc_nbytes; |
| 1268 | fd->sc_bcount -= fd->sc_nbytes; |
| 1269 | if (!finfo && fd->sc_bcount > 0) { |
| 1270 | bp->b_cylinder = fd->sc_blkno / fd->sc_type->seccyl; |
| 1271 | goto doseek; |
| 1272 | } |
| 1273 | fdfinish(fd, bp); |
| 1274 | goto loop; |
| 1275 | |
| 1276 | case DORESET: |
| 1277 | /* try a reset, keep motor on */ |
| 1278 | fd_set_motor(fdc, 1); |
| 1279 | delay(100); |
| 1280 | fd_set_motor(fdc, 0); |
| 1281 | fdc->sc_state = RESETCOMPLETE; |
| 1282 | callout_reset(&fdc->sc_timo_ch, hz / 2, fdctimeout, fdc); |
| 1283 | return 1; /* will return later */ |
| 1284 | |
| 1285 | case RESETCOMPLETE: |
| 1286 | callout_stop(&fdc->sc_timo_ch); |
| 1287 | /* clear the controller output buffer */ |
| 1288 | for (i = 0; i < 4; i++) { |
| 1289 | out_fdc(iot, ioh, NE7CMD_SENSEI); |
| 1290 | (void) fdcresult(fdc); |
| 1291 | } |
| 1292 | |
| 1293 | /* fall through */ |
| 1294 | case DORECAL: |
| 1295 | out_fdc(iot, ioh, NE7CMD_RECAL); /* recalibrate function */ |
| 1296 | out_fdc(iot, ioh, fd->sc_drive); |
| 1297 | fdc->sc_state = RECALWAIT; |
| 1298 | callout_reset(&fdc->sc_timo_ch, 5 * hz, fdctimeout, fdc); |
| 1299 | return 1; /* will return later */ |
| 1300 | |
| 1301 | case RECALWAIT: |
| 1302 | callout_stop(&fdc->sc_timo_ch); |
| 1303 | fdc->sc_state = RECALCOMPLETE; |
| 1304 | /* allow 1/30 second for heads to settle */ |
| 1305 | callout_reset(&fdc->sc_intr_ch, hz / 30, fdcintrcb, fdc); |
| 1306 | return 1; /* will return later */ |
| 1307 | |
| 1308 | case RECALCOMPLETE: |
| 1309 | out_fdc(iot, ioh, NE7CMD_SENSEI); |
| 1310 | if (fdcresult(fdc) != 2 || (st0 & 0xf8) != 0x20 || cyl != 0) { |
| 1311 | #ifdef FD_DEBUG |
| 1312 | fdcstatus(fd->sc_dev, 2, "recalibrate failed" ); |
| 1313 | #endif |
| 1314 | fdcretry(fdc); |
| 1315 | goto loop; |
| 1316 | } |
| 1317 | fd->sc_cylin = 0; |
| 1318 | goto doseek; |
| 1319 | |
| 1320 | case MOTORWAIT: |
| 1321 | if (fd->sc_flags & FD_MOTOR_WAIT) |
| 1322 | return 1; /* time's not up yet */ |
| 1323 | goto doseek; |
| 1324 | |
| 1325 | default: |
| 1326 | fdcstatus(fd->sc_dev, 0, "stray interrupt" ); |
| 1327 | return 1; |
| 1328 | } |
| 1329 | #undef st0 |
| 1330 | #undef cyl |
| 1331 | |
| 1332 | out: |
| 1333 | cv_signal(&fdc->sc_cv); |
| 1334 | return 1; |
| 1335 | } |
| 1336 | |
| 1337 | static void |
| 1338 | fdcintrcb(void *arg) |
| 1339 | { |
| 1340 | (void)fdcintr(arg); |
| 1341 | } |
| 1342 | |
| 1343 | int |
| 1344 | fdcintr(void *arg) |
| 1345 | { |
| 1346 | int rc; |
| 1347 | struct fdc_softc *fdc = arg; |
| 1348 | |
| 1349 | mutex_enter(&fdc->sc_mtx); |
| 1350 | rc = fdcintr1(fdc); |
| 1351 | mutex_exit(&fdc->sc_mtx); |
| 1352 | return rc; |
| 1353 | } |
| 1354 | |
| 1355 | void |
| 1356 | fdcretry(struct fdc_softc *fdc) |
| 1357 | { |
| 1358 | struct fd_softc *fd; |
| 1359 | struct buf *bp; |
| 1360 | |
| 1361 | fd = TAILQ_FIRST(&fdc->sc_drives); |
| 1362 | bp = bufq_peek(fd->sc_q); |
| 1363 | |
| 1364 | if (fd->sc_opts & FDOPT_NORETRY) |
| 1365 | goto fail; |
| 1366 | switch (fdc->sc_errors) { |
| 1367 | case 0: |
| 1368 | /* try again */ |
| 1369 | fdc->sc_state = DOSEEK; |
| 1370 | break; |
| 1371 | |
| 1372 | case 1: case 2: case 3: |
| 1373 | /* didn't work; try recalibrating */ |
| 1374 | fdc->sc_state = DORECAL; |
| 1375 | break; |
| 1376 | |
| 1377 | case 4: |
| 1378 | /* still no go; reset the bastard */ |
| 1379 | fdc->sc_state = DORESET; |
| 1380 | break; |
| 1381 | |
| 1382 | default: |
| 1383 | fail: |
| 1384 | if ((fd->sc_opts & FDOPT_SILENT) == 0) { |
| 1385 | diskerr(bp, "fd" , "hard error" , LOG_PRINTF, |
| 1386 | fd->sc_skip / FDC_BSIZE, NULL); |
| 1387 | fdcpstatus(7, fdc); |
| 1388 | } |
| 1389 | |
| 1390 | bp->b_error = EIO; |
| 1391 | fdfinish(fd, bp); |
| 1392 | } |
| 1393 | fdc->sc_errors++; |
| 1394 | } |
| 1395 | |
| 1396 | int |
| 1397 | fdioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l) |
| 1398 | { |
| 1399 | struct fd_softc *fd = |
| 1400 | device_lookup_private(&fd_cd, FDUNIT(dev)); |
| 1401 | struct fdformat_parms *form_parms; |
| 1402 | struct fdformat_cmd *form_cmd; |
| 1403 | struct ne7_fd_formb *fd_formb; |
| 1404 | struct disklabel *lp = fd->sc_dk.dk_label; |
| 1405 | int error; |
| 1406 | unsigned int scratch; |
| 1407 | int il[FD_MAX_NSEC + 1]; |
| 1408 | int i, j; |
| 1409 | #ifdef __HAVE_OLD_DISKLABEL |
| 1410 | struct disklabel newlabel; |
| 1411 | #endif |
| 1412 | |
| 1413 | switch (cmd) { |
| 1414 | case DIOCGPARTINFO: |
| 1415 | case DIOCGDINFO: |
| 1416 | #ifdef __HAVE_OLD_DISKLABEL |
| 1417 | case ODIOCGDINFO: |
| 1418 | #endif |
| 1419 | memset(lp, 0, sizeof(*lp)); |
| 1420 | |
| 1421 | lp->d_type = DKTYPE_FLOPPY; |
| 1422 | lp->d_secsize = FDC_BSIZE; |
| 1423 | lp->d_nsectors = fd->sc_type->sectrac; |
| 1424 | lp->d_ntracks = fd->sc_type->heads; |
| 1425 | lp->d_ncylinders = fd->sc_type->cyls; |
| 1426 | lp->d_secpercyl = fd->sc_type->seccyl; |
| 1427 | lp->d_secperunit = fd->sc_type->size; |
| 1428 | |
| 1429 | if (readdisklabel(dev, fdstrategy, lp, NULL) != NULL) |
| 1430 | return EINVAL; |
| 1431 | break; |
| 1432 | } |
| 1433 | |
| 1434 | error = disk_ioctl(&fd->sc_dk, dev, cmd, addr, flag, l); |
| 1435 | if (error != EPASSTHROUGH) |
| 1436 | return error; |
| 1437 | |
| 1438 | switch (cmd) { |
| 1439 | case DIOCWLABEL: |
| 1440 | if ((flag & FWRITE) == 0) |
| 1441 | return EBADF; |
| 1442 | /* XXX do something */ |
| 1443 | return 0; |
| 1444 | |
| 1445 | case DIOCWDINFO: |
| 1446 | #ifdef __HAVE_OLD_DISKLABEL |
| 1447 | case ODIOCWDINFO: |
| 1448 | #endif |
| 1449 | { |
| 1450 | if ((flag & FWRITE) == 0) |
| 1451 | return EBADF; |
| 1452 | #ifdef __HAVE_OLD_DISKLABEL |
| 1453 | if (cmd == ODIOCWDINFO) { |
| 1454 | memset(&newlabel, 0, sizeof newlabel); |
| 1455 | memcpy(&newlabel, addr, sizeof (struct olddisklabel)); |
| 1456 | addr = &newlabel; |
| 1457 | } |
| 1458 | #endif |
| 1459 | error = setdisklabel(lp, addr, 0, NULL); |
| 1460 | if (error) |
| 1461 | return error; |
| 1462 | |
| 1463 | error = writedisklabel(dev, fdstrategy, lp, NULL); |
| 1464 | return error; |
| 1465 | } |
| 1466 | |
| 1467 | case FDIOCGETFORMAT: |
| 1468 | form_parms = (struct fdformat_parms *)addr; |
| 1469 | form_parms->fdformat_version = FDFORMAT_VERSION; |
| 1470 | form_parms->nbps = 128 * (1 << fd->sc_type->secsize); |
| 1471 | form_parms->ncyl = fd->sc_type->cyls; |
| 1472 | form_parms->nspt = fd->sc_type->sectrac; |
| 1473 | form_parms->ntrk = fd->sc_type->heads; |
| 1474 | form_parms->stepspercyl = fd->sc_type->step; |
| 1475 | form_parms->gaplen = fd->sc_type->gap2; |
| 1476 | form_parms->fillbyte = fd->sc_type->fillbyte; |
| 1477 | form_parms->interleave = fd->sc_type->interleave; |
| 1478 | switch (fd->sc_type->rate) { |
| 1479 | case FDC_500KBPS: |
| 1480 | form_parms->xfer_rate = 500 * 1024; |
| 1481 | break; |
| 1482 | case FDC_300KBPS: |
| 1483 | form_parms->xfer_rate = 300 * 1024; |
| 1484 | break; |
| 1485 | case FDC_250KBPS: |
| 1486 | form_parms->xfer_rate = 250 * 1024; |
| 1487 | break; |
| 1488 | default: |
| 1489 | return EINVAL; |
| 1490 | } |
| 1491 | return 0; |
| 1492 | |
| 1493 | case FDIOCSETFORMAT: |
| 1494 | if((flag & FWRITE) == 0) |
| 1495 | return EBADF; /* must be opened for writing */ |
| 1496 | form_parms = (struct fdformat_parms *)addr; |
| 1497 | if (form_parms->fdformat_version != FDFORMAT_VERSION) |
| 1498 | return EINVAL; /* wrong version of formatting prog */ |
| 1499 | |
| 1500 | scratch = form_parms->nbps >> 7; |
| 1501 | if ((form_parms->nbps & 0x7f) || ffs(scratch) == 0 || |
| 1502 | scratch & ~(1 << (ffs(scratch)-1))) |
| 1503 | /* not a power-of-two multiple of 128 */ |
| 1504 | return EINVAL; |
| 1505 | |
| 1506 | switch (form_parms->xfer_rate) { |
| 1507 | case 500 * 1024: |
| 1508 | fd->sc_type->rate = FDC_500KBPS; |
| 1509 | break; |
| 1510 | case 300 * 1024: |
| 1511 | fd->sc_type->rate = FDC_300KBPS; |
| 1512 | break; |
| 1513 | case 250 * 1024: |
| 1514 | fd->sc_type->rate = FDC_250KBPS; |
| 1515 | break; |
| 1516 | default: |
| 1517 | return EINVAL; |
| 1518 | } |
| 1519 | |
| 1520 | if (form_parms->nspt > FD_MAX_NSEC || |
| 1521 | form_parms->fillbyte > 0xff || |
| 1522 | form_parms->interleave > 0xff) |
| 1523 | return EINVAL; |
| 1524 | fd->sc_type->sectrac = form_parms->nspt; |
| 1525 | if (form_parms->ntrk != 2 && form_parms->ntrk != 1) |
| 1526 | return EINVAL; |
| 1527 | fd->sc_type->heads = form_parms->ntrk; |
| 1528 | fd->sc_type->seccyl = form_parms->nspt * form_parms->ntrk; |
| 1529 | fd->sc_type->secsize = ffs(scratch)-1; |
| 1530 | fd->sc_type->gap2 = form_parms->gaplen; |
| 1531 | fd->sc_type->cyls = form_parms->ncyl; |
| 1532 | fd->sc_type->size = fd->sc_type->seccyl * form_parms->ncyl * |
| 1533 | form_parms->nbps / DEV_BSIZE; |
| 1534 | fd->sc_type->step = form_parms->stepspercyl; |
| 1535 | fd->sc_type->fillbyte = form_parms->fillbyte; |
| 1536 | fd->sc_type->interleave = form_parms->interleave; |
| 1537 | return 0; |
| 1538 | |
| 1539 | case FDIOCFORMAT_TRACK: |
| 1540 | if((flag & FWRITE) == 0) |
| 1541 | return EBADF; /* must be opened for writing */ |
| 1542 | form_cmd = (struct fdformat_cmd *)addr; |
| 1543 | if (form_cmd->formatcmd_version != FDFORMAT_VERSION) |
| 1544 | return EINVAL; /* wrong version of formatting prog */ |
| 1545 | |
| 1546 | if (form_cmd->head >= fd->sc_type->heads || |
| 1547 | form_cmd->cylinder >= fd->sc_type->cyls) { |
| 1548 | return EINVAL; |
| 1549 | } |
| 1550 | |
| 1551 | fd_formb = malloc(sizeof(struct ne7_fd_formb), |
| 1552 | M_TEMP, M_NOWAIT); |
| 1553 | if (fd_formb == 0) |
| 1554 | return ENOMEM; |
| 1555 | |
| 1556 | fd_formb->head = form_cmd->head; |
| 1557 | fd_formb->cyl = form_cmd->cylinder; |
| 1558 | fd_formb->transfer_rate = fd->sc_type->rate; |
| 1559 | fd_formb->fd_formb_secshift = fd->sc_type->secsize; |
| 1560 | fd_formb->fd_formb_nsecs = fd->sc_type->sectrac; |
| 1561 | fd_formb->fd_formb_gaplen = fd->sc_type->gap2; |
| 1562 | fd_formb->fd_formb_fillbyte = fd->sc_type->fillbyte; |
| 1563 | |
| 1564 | memset(il, 0, sizeof il); |
| 1565 | for (j = 0, i = 1; i <= fd_formb->fd_formb_nsecs; i++) { |
| 1566 | while (il[(j%fd_formb->fd_formb_nsecs)+1]) |
| 1567 | j++; |
| 1568 | il[(j%fd_formb->fd_formb_nsecs)+1] = i; |
| 1569 | j += fd->sc_type->interleave; |
| 1570 | } |
| 1571 | for (i = 0; i < fd_formb->fd_formb_nsecs; i++) { |
| 1572 | fd_formb->fd_formb_cylno(i) = form_cmd->cylinder; |
| 1573 | fd_formb->fd_formb_headno(i) = form_cmd->head; |
| 1574 | fd_formb->fd_formb_secno(i) = il[i+1]; |
| 1575 | fd_formb->fd_formb_secsize(i) = fd->sc_type->secsize; |
| 1576 | } |
| 1577 | |
| 1578 | error = fdformat(dev, fd_formb, l); |
| 1579 | free(fd_formb, M_TEMP); |
| 1580 | return error; |
| 1581 | |
| 1582 | case FDIOCGETOPTS: /* get drive options */ |
| 1583 | *(int *)addr = fd->sc_opts; |
| 1584 | return 0; |
| 1585 | |
| 1586 | case FDIOCSETOPTS: /* set drive options */ |
| 1587 | fd->sc_opts = *(int *)addr; |
| 1588 | return 0; |
| 1589 | |
| 1590 | default: |
| 1591 | return ENOTTY; |
| 1592 | } |
| 1593 | |
| 1594 | #ifdef DIAGNOSTIC |
| 1595 | panic("fdioctl: impossible" ); |
| 1596 | #endif |
| 1597 | } |
| 1598 | |
| 1599 | int |
| 1600 | fdformat(dev_t dev, struct ne7_fd_formb *finfo, struct lwp *l) |
| 1601 | { |
| 1602 | int rv = 0; |
| 1603 | struct fd_softc *fd = |
| 1604 | device_lookup_private(&fd_cd, FDUNIT(dev)); |
| 1605 | struct fd_type *type = fd->sc_type; |
| 1606 | struct buf *bp; |
| 1607 | |
| 1608 | /* set up a buffer header for fdstrategy() */ |
| 1609 | bp = getiobuf(NULL, false); |
| 1610 | if (bp == NULL) |
| 1611 | return ENOBUFS; |
| 1612 | |
| 1613 | bp->b_cflags = BC_BUSY; |
| 1614 | bp->b_flags = B_PHYS | B_FORMAT; |
| 1615 | bp->b_proc = l->l_proc; |
| 1616 | bp->b_dev = dev; |
| 1617 | |
| 1618 | /* |
| 1619 | * calculate a fake blkno, so fdstrategy() would initiate a |
| 1620 | * seek to the requested cylinder |
| 1621 | */ |
| 1622 | bp->b_blkno = (finfo->cyl * (type->sectrac * type->heads) |
| 1623 | + finfo->head * type->sectrac) * FDC_BSIZE / DEV_BSIZE; |
| 1624 | |
| 1625 | bp->b_bcount = sizeof(struct fd_idfield_data) * finfo->fd_formb_nsecs; |
| 1626 | bp->b_data = (void *)finfo; |
| 1627 | |
| 1628 | #ifdef FD_DEBUG |
| 1629 | printf("fdformat: blkno %" PRIx64 " count %x\n" , |
| 1630 | bp->b_blkno, bp->b_bcount); |
| 1631 | #endif |
| 1632 | |
| 1633 | /* now do the format */ |
| 1634 | fdstrategy(bp); |
| 1635 | |
| 1636 | /* ...and wait for it to complete */ |
| 1637 | rv = biowait(bp); |
| 1638 | putiobuf(bp); |
| 1639 | return rv; |
| 1640 | } |
| 1641 | |
| 1642 | /* |
| 1643 | * Mountroot hook: prompt the user to enter the root file system |
| 1644 | * floppy. |
| 1645 | */ |
| 1646 | void |
| 1647 | fd_mountroot_hook(device_t dev) |
| 1648 | { |
| 1649 | int c; |
| 1650 | |
| 1651 | printf("Insert filesystem floppy and press return." ); |
| 1652 | cnpollc(1); |
| 1653 | for (;;) { |
| 1654 | c = cngetc(); |
| 1655 | if ((c == '\r') || (c == '\n')) { |
| 1656 | printf("\n" ); |
| 1657 | break; |
| 1658 | } |
| 1659 | } |
| 1660 | cnpollc(0); |
| 1661 | } |
| 1662 | |
| 1663 | static void |
| 1664 | fd_set_geometry(struct fd_softc *fd) |
| 1665 | { |
| 1666 | const struct fd_type *fdt; |
| 1667 | |
| 1668 | fdt = fd->sc_type; |
| 1669 | if (fdt == NULL) { |
| 1670 | fdt = fd->sc_deftype; |
| 1671 | if (fdt == NULL) |
| 1672 | return; |
| 1673 | } |
| 1674 | |
| 1675 | struct disk_geom *dg = &fd->sc_dk.dk_geom; |
| 1676 | |
| 1677 | memset(dg, 0, sizeof(*dg)); |
| 1678 | dg->dg_secperunit = fdt->size; |
| 1679 | dg->dg_nsectors = fdt->sectrac; |
| 1680 | switch (fdt->secsize) { |
| 1681 | case 2: |
| 1682 | dg->dg_secsize = 512; |
| 1683 | break; |
| 1684 | case 3: |
| 1685 | dg->dg_secsize = 1024; |
| 1686 | break; |
| 1687 | default: |
| 1688 | break; |
| 1689 | } |
| 1690 | dg->dg_ntracks = fdt->heads; |
| 1691 | dg->dg_ncylinders = fdt->cyls; |
| 1692 | disk_set_info(fd->sc_dev, &fd->sc_dk, NULL); |
| 1693 | } |
| 1694 | |