| 1 | /* $NetBSD: ss.c,v 1.88 2016/11/20 15:37:19 mlelstv Exp $ */ |
| 2 | |
| 3 | /* |
| 4 | * Copyright (c) 1995 Kenneth Stailey. All rights reserved. |
| 5 | * modified for configurable scanner support by Joachim Koenig |
| 6 | * |
| 7 | * Redistribution and use in source and binary forms, with or without |
| 8 | * modification, are permitted provided that the following conditions |
| 9 | * are met: |
| 10 | * 1. Redistributions of source code must retain the above copyright |
| 11 | * notice, this list of conditions and the following disclaimer. |
| 12 | * 2. Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in the |
| 14 | * documentation and/or other materials provided with the distribution. |
| 15 | * 3. All advertising materials mentioning features or use of this software |
| 16 | * must display the following acknowledgement: |
| 17 | * This product includes software developed by Kenneth Stailey. |
| 18 | * 4. The name of the author may not be used to endorse or promote products |
| 19 | * derived from this software without specific prior written permission. |
| 20 | * |
| 21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| 22 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| 23 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| 24 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 25 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 26 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 27 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 28 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 29 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 30 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 31 | */ |
| 32 | |
| 33 | #include <sys/cdefs.h> |
| 34 | __KERNEL_RCSID(0, "$NetBSD: ss.c,v 1.88 2016/11/20 15:37:19 mlelstv Exp $" ); |
| 35 | |
| 36 | #include <sys/param.h> |
| 37 | #include <sys/systm.h> |
| 38 | #include <sys/fcntl.h> |
| 39 | #include <sys/errno.h> |
| 40 | #include <sys/ioctl.h> |
| 41 | #include <sys/malloc.h> |
| 42 | #include <sys/buf.h> |
| 43 | #include <sys/bufq.h> |
| 44 | #include <sys/proc.h> |
| 45 | #include <sys/device.h> |
| 46 | #include <sys/conf.h> |
| 47 | #include <sys/vnode.h> |
| 48 | #include <sys/scanio.h> |
| 49 | |
| 50 | #include <dev/scsipi/scsi_all.h> |
| 51 | #include <dev/scsipi/scsipi_all.h> |
| 52 | #include <dev/scsipi/scsi_scanner.h> |
| 53 | #include <dev/scsipi/scsiconf.h> |
| 54 | #include <dev/scsipi/ssvar.h> |
| 55 | |
| 56 | #include <dev/scsipi/ss_mustek.h> |
| 57 | |
| 58 | #define SSMODE(z) ( minor(z) & 0x03) |
| 59 | #define SSUNIT(z) ((minor(z) >> 4) ) |
| 60 | #define SSNMINOR 16 |
| 61 | |
| 62 | /* |
| 63 | * If the mode is 3 (e.g. minor = 3,7,11,15) |
| 64 | * then the device has been openned to set defaults |
| 65 | * This mode does NOT ALLOW I/O, only ioctls |
| 66 | */ |
| 67 | #define MODE_REWIND 0 |
| 68 | #define MODE_NONREWIND 1 |
| 69 | #define MODE_CONTROL 3 |
| 70 | |
| 71 | static int ssmatch(device_t, cfdata_t, void *); |
| 72 | static void ssattach(device_t, device_t, void *); |
| 73 | static int ssdetach(device_t self, int flags); |
| 74 | |
| 75 | CFATTACH_DECL_NEW( |
| 76 | ss, |
| 77 | sizeof(struct ss_softc), |
| 78 | ssmatch, |
| 79 | ssattach, |
| 80 | ssdetach, |
| 81 | NULL |
| 82 | ); |
| 83 | |
| 84 | extern struct cfdriver ss_cd; |
| 85 | |
| 86 | static dev_type_open(ssopen); |
| 87 | static dev_type_close(ssclose); |
| 88 | static dev_type_read(ssread); |
| 89 | static dev_type_ioctl(ssioctl); |
| 90 | |
| 91 | const struct cdevsw ss_cdevsw = { |
| 92 | .d_open = ssopen, |
| 93 | .d_close = ssclose, |
| 94 | .d_read = ssread, |
| 95 | .d_write = nowrite, |
| 96 | .d_ioctl = ssioctl, |
| 97 | .d_stop = nostop, |
| 98 | .d_tty = notty, |
| 99 | .d_poll = nopoll, |
| 100 | .d_mmap = nommap, |
| 101 | .d_kqfilter = nokqfilter, |
| 102 | .d_discard = nodiscard, |
| 103 | .d_flag = D_OTHER | D_MPSAFE |
| 104 | }; |
| 105 | |
| 106 | static void ssstrategy(struct buf *); |
| 107 | static void ssstart(struct scsipi_periph *); |
| 108 | static void ssdone(struct scsipi_xfer *, int); |
| 109 | static void ssminphys(struct buf *); |
| 110 | |
| 111 | static const struct scsipi_periphsw ss_switch = { |
| 112 | NULL, |
| 113 | ssstart, |
| 114 | NULL, |
| 115 | ssdone, |
| 116 | }; |
| 117 | |
| 118 | static const struct scsipi_inquiry_pattern ss_patterns[] = { |
| 119 | {T_SCANNER, T_FIXED, |
| 120 | "" , "" , "" }, |
| 121 | {T_SCANNER, T_REMOV, |
| 122 | "" , "" , "" }, |
| 123 | {T_PROCESSOR, T_FIXED, |
| 124 | "HP " , "C1130A " , "" }, |
| 125 | {T_PROCESSOR, T_FIXED, |
| 126 | "HP " , "C1750A " , "" }, |
| 127 | {T_PROCESSOR, T_FIXED, |
| 128 | "HP " , "C2500A " , "" }, |
| 129 | {T_PROCESSOR, T_FIXED, |
| 130 | "HP " , "C2520A " , "" }, |
| 131 | {T_PROCESSOR, T_FIXED, |
| 132 | "HP " , "C5110A " , "" }, |
| 133 | {T_PROCESSOR, T_FIXED, |
| 134 | "HP " , "C7670A " , "" }, |
| 135 | {T_PROCESSOR, T_FIXED, |
| 136 | "HP " , "" , "" }, |
| 137 | }; |
| 138 | |
| 139 | static int |
| 140 | ssmatch(device_t parent, cfdata_t match, void *aux) |
| 141 | { |
| 142 | struct scsipibus_attach_args *sa = aux; |
| 143 | int priority; |
| 144 | |
| 145 | (void)scsipi_inqmatch(&sa->sa_inqbuf, |
| 146 | ss_patterns, sizeof(ss_patterns) / sizeof(ss_patterns[0]), |
| 147 | sizeof(ss_patterns[0]), &priority); |
| 148 | return priority; |
| 149 | } |
| 150 | |
| 151 | /* |
| 152 | * The routine called by the low level scsi routine when it discovers |
| 153 | * A device suitable for this driver |
| 154 | * If it is a know special, call special attach routine to install |
| 155 | * special handlers into the ss_softc structure |
| 156 | */ |
| 157 | static void |
| 158 | ssattach(device_t parent, device_t self, void *aux) |
| 159 | { |
| 160 | struct ss_softc *ss = device_private(self); |
| 161 | struct scsipibus_attach_args *sa = aux; |
| 162 | struct scsipi_periph *periph = sa->sa_periph; |
| 163 | |
| 164 | SC_DEBUG(periph, SCSIPI_DB2, ("ssattach: " )); |
| 165 | ss->sc_dev = self; |
| 166 | |
| 167 | ss->flags |= SSF_AUTOCONF; |
| 168 | |
| 169 | /* Store information needed to contact our base driver */ |
| 170 | ss->sc_periph = periph; |
| 171 | periph->periph_dev = ss->sc_dev; |
| 172 | periph->periph_switch = &ss_switch; |
| 173 | |
| 174 | printf("\n" ); |
| 175 | |
| 176 | /* Set up the buf queue for this device */ |
| 177 | bufq_alloc(&ss->buf_queue, "fcfs" , 0); |
| 178 | |
| 179 | callout_init(&ss->sc_callout, 0); |
| 180 | |
| 181 | /* |
| 182 | * look for non-standard scanners with help of the quirk table |
| 183 | * and install functions for special handling |
| 184 | */ |
| 185 | SC_DEBUG(periph, SCSIPI_DB2, ("ssattach:\n" )); |
| 186 | if (memcmp(sa->sa_inqbuf.vendor, "MUSTEK" , 6) == 0) |
| 187 | mustek_attach(ss, sa); |
| 188 | if (memcmp(sa->sa_inqbuf.vendor, "HP " , 8) == 0 && |
| 189 | memcmp(sa->sa_inqbuf.product, "ScanJet 5300C" , 13) != 0) |
| 190 | scanjet_attach(ss, sa); |
| 191 | |
| 192 | if (ss->special == NULL) { |
| 193 | /* XXX add code to restart a SCSI2 scanner, if any */ |
| 194 | } |
| 195 | ss->flags &= ~SSF_AUTOCONF; |
| 196 | } |
| 197 | |
| 198 | static int |
| 199 | ssdetach(device_t self, int flags) |
| 200 | { |
| 201 | struct ss_softc *ss = device_private(self); |
| 202 | struct scsipi_periph *periph = ss->sc_periph; |
| 203 | struct scsipi_channel *chan = periph->periph_channel; |
| 204 | int cmaj, mn; |
| 205 | |
| 206 | /* locate the major number */ |
| 207 | cmaj = cdevsw_lookup_major(&ss_cdevsw); |
| 208 | |
| 209 | /* kill any pending restart */ |
| 210 | callout_stop(&ss->sc_callout); |
| 211 | |
| 212 | mutex_enter(chan_mtx(chan)); |
| 213 | |
| 214 | /* Kill off any queued buffers. */ |
| 215 | bufq_drain(ss->buf_queue); |
| 216 | |
| 217 | /* Kill off any pending commands. */ |
| 218 | scsipi_kill_pending(periph); |
| 219 | |
| 220 | mutex_exit(chan_mtx(chan)); |
| 221 | |
| 222 | bufq_free(ss->buf_queue); |
| 223 | |
| 224 | /* Nuke the vnodes for any open instances */ |
| 225 | mn = SSUNIT(device_unit(self)); |
| 226 | vdevgone(cmaj, mn, mn+SSNMINOR-1, VCHR); |
| 227 | |
| 228 | return 0; |
| 229 | } |
| 230 | |
| 231 | /* open the device. */ |
| 232 | static int |
| 233 | ssopen(dev_t dev, int flag, int mode, struct lwp *l) |
| 234 | { |
| 235 | int unit; |
| 236 | u_int ssmode; |
| 237 | int error; |
| 238 | struct ss_softc *ss; |
| 239 | struct scsipi_periph *periph; |
| 240 | struct scsipi_adapter *adapt; |
| 241 | |
| 242 | unit = SSUNIT(dev); |
| 243 | ss = device_lookup_private(&ss_cd, unit); |
| 244 | if (ss == NULL) |
| 245 | return ENXIO; |
| 246 | |
| 247 | if (!device_is_active(ss->sc_dev)) |
| 248 | return ENODEV; |
| 249 | |
| 250 | ssmode = SSMODE(dev); |
| 251 | |
| 252 | periph = ss->sc_periph; |
| 253 | adapt = periph->periph_channel->chan_adapter; |
| 254 | |
| 255 | SC_DEBUG(periph, SCSIPI_DB1, |
| 256 | ("open: dev=0x%" PRIx64" (unit %d (of %d))\n" , dev, unit, |
| 257 | ss_cd.cd_ndevs)); |
| 258 | |
| 259 | if (periph->periph_flags & PERIPH_OPEN) { |
| 260 | aprint_error_dev(ss->sc_dev, "already open\n" ); |
| 261 | return EBUSY; |
| 262 | } |
| 263 | |
| 264 | if ((error = scsipi_adapter_addref(adapt)) != 0) |
| 265 | return error; |
| 266 | |
| 267 | /* |
| 268 | * Catch any unit attention errors. |
| 269 | * |
| 270 | * XS_CTL_IGNORE_MEDIA_CHANGE: when you have an ADF, some scanners |
| 271 | * consider paper to be a changeable media |
| 272 | * |
| 273 | */ |
| 274 | error = scsipi_test_unit_ready(periph, |
| 275 | XS_CTL_IGNORE_MEDIA_CHANGE | XS_CTL_IGNORE_ILLEGAL_REQUEST | |
| 276 | (ssmode == MODE_CONTROL ? XS_CTL_IGNORE_NOT_READY : 0)); |
| 277 | if (error) |
| 278 | goto bad; |
| 279 | |
| 280 | periph->periph_flags |= PERIPH_OPEN; /* unit attn now errors */ |
| 281 | |
| 282 | /* |
| 283 | * If the mode is 3 (e.g. minor = 3,7,11,15) |
| 284 | * then the device has been opened to set defaults |
| 285 | * This mode does NOT ALLOW I/O, only ioctls |
| 286 | */ |
| 287 | if (ssmode == MODE_CONTROL) |
| 288 | return 0; |
| 289 | |
| 290 | SC_DEBUG(periph, SCSIPI_DB2, ("open complete\n" )); |
| 291 | return 0; |
| 292 | |
| 293 | bad: |
| 294 | scsipi_adapter_delref(adapt); |
| 295 | periph->periph_flags &= ~PERIPH_OPEN; |
| 296 | return error; |
| 297 | } |
| 298 | |
| 299 | /* |
| 300 | * close the device.. only called if we are the LAST |
| 301 | * occurence of an open device |
| 302 | */ |
| 303 | static int |
| 304 | ssclose(dev_t dev, int flag, int mode, struct lwp *l) |
| 305 | { |
| 306 | struct ss_softc *ss = device_lookup_private(&ss_cd, SSUNIT(dev)); |
| 307 | struct scsipi_periph *periph = ss->sc_periph; |
| 308 | struct scsipi_adapter *adapt = periph->periph_channel->chan_adapter; |
| 309 | int error; |
| 310 | |
| 311 | SC_DEBUG(ss->sc_periph, SCSIPI_DB1, ("closing\n" )); |
| 312 | |
| 313 | if (SSMODE(dev) == MODE_REWIND) { |
| 314 | if (ss->special && ss->special->rewind_scanner) { |
| 315 | /* call special handler to rewind/abort scan */ |
| 316 | error = (ss->special->rewind_scanner)(ss); |
| 317 | if (error) |
| 318 | return error; |
| 319 | } else { |
| 320 | /* XXX add code to restart a SCSI2 scanner, if any */ |
| 321 | } |
| 322 | ss->sio.scan_window_size = 0; |
| 323 | ss->flags &= ~SSF_TRIGGERED; |
| 324 | } |
| 325 | |
| 326 | scsipi_wait_drain(periph); |
| 327 | |
| 328 | scsipi_adapter_delref(adapt); |
| 329 | periph->periph_flags &= ~PERIPH_OPEN; |
| 330 | |
| 331 | return 0; |
| 332 | } |
| 333 | |
| 334 | /* |
| 335 | * trim the size of the transfer if needed, called by physio |
| 336 | * basically the smaller of our min and the scsi driver's minphys |
| 337 | */ |
| 338 | static void |
| 339 | ssminphys(struct buf *bp) |
| 340 | { |
| 341 | struct ss_softc *ss = device_lookup_private(&ss_cd, SSUNIT(bp->b_dev)); |
| 342 | struct scsipi_periph *periph = ss->sc_periph; |
| 343 | |
| 344 | scsipi_adapter_minphys(periph->periph_channel, bp); |
| 345 | |
| 346 | /* |
| 347 | * trim the transfer further for special devices this is |
| 348 | * because some scanners only read multiples of a line at a |
| 349 | * time, also some cannot disconnect, so the read must be |
| 350 | * short enough to happen quickly |
| 351 | */ |
| 352 | if (ss->special && ss->special->minphys) |
| 353 | (ss->special->minphys)(ss, bp); |
| 354 | } |
| 355 | |
| 356 | /* |
| 357 | * Do a read on a device for a user process. |
| 358 | * Prime scanner at start of read, check uio values, call ssstrategy |
| 359 | * via physio for the actual transfer. |
| 360 | */ |
| 361 | static int |
| 362 | ssread(dev_t dev, struct uio *uio, int flag) |
| 363 | { |
| 364 | struct ss_softc *ss = device_lookup_private(&ss_cd, SSUNIT(dev)); |
| 365 | int error; |
| 366 | |
| 367 | if (!device_is_active(ss->sc_dev)) |
| 368 | return ENODEV; |
| 369 | |
| 370 | /* if the scanner has not yet been started, do it now */ |
| 371 | if (!(ss->flags & SSF_TRIGGERED)) { |
| 372 | if (ss->special && ss->special->trigger_scanner) { |
| 373 | error = (ss->special->trigger_scanner)(ss); |
| 374 | if (error) |
| 375 | return (error); |
| 376 | } |
| 377 | ss->flags |= SSF_TRIGGERED; |
| 378 | } |
| 379 | |
| 380 | return physio(ssstrategy, NULL, dev, B_READ, ssminphys, uio); |
| 381 | } |
| 382 | |
| 383 | /* |
| 384 | * Actually translate the requested transfer into one the physical |
| 385 | * driver can understand The transfer is described by a buf and will |
| 386 | * include only one physical transfer. |
| 387 | */ |
| 388 | static void |
| 389 | ssstrategy(struct buf *bp) |
| 390 | { |
| 391 | struct ss_softc *ss = device_lookup_private(&ss_cd, SSUNIT(bp->b_dev)); |
| 392 | struct scsipi_periph *periph = ss->sc_periph; |
| 393 | struct scsipi_channel *chan = periph->periph_channel; |
| 394 | |
| 395 | SC_DEBUG(ss->sc_periph, SCSIPI_DB1, |
| 396 | ("ssstrategy %d bytes @ blk %" PRId64 "\n" , bp->b_bcount, |
| 397 | bp->b_blkno)); |
| 398 | |
| 399 | /* If the device has been made invalid, error out */ |
| 400 | if (!device_is_active(ss->sc_dev)) { |
| 401 | if (periph->periph_flags & PERIPH_OPEN) |
| 402 | bp->b_error = EIO; |
| 403 | else |
| 404 | bp->b_error = ENODEV; |
| 405 | goto done; |
| 406 | } |
| 407 | |
| 408 | /* If negative offset, error */ |
| 409 | if (bp->b_blkno < 0) { |
| 410 | bp->b_error = EINVAL; |
| 411 | goto done; |
| 412 | } |
| 413 | |
| 414 | if (bp->b_bcount > ss->sio.scan_window_size) |
| 415 | bp->b_bcount = ss->sio.scan_window_size; |
| 416 | |
| 417 | /* If it's a null transfer, return immediatly */ |
| 418 | if (bp->b_bcount == 0) |
| 419 | goto done; |
| 420 | |
| 421 | mutex_enter(chan_mtx(chan)); |
| 422 | |
| 423 | /* |
| 424 | * Place it in the queue of activities for this scanner |
| 425 | * at the end (a bit silly because we only have on user.. |
| 426 | * (but it could fork())) |
| 427 | */ |
| 428 | bufq_put(ss->buf_queue, bp); |
| 429 | |
| 430 | /* |
| 431 | * Tell the device to get going on the transfer if it's |
| 432 | * not doing anything, otherwise just wait for completion |
| 433 | * (All a bit silly if we're only allowing 1 open but..) |
| 434 | */ |
| 435 | ssstart(periph); |
| 436 | |
| 437 | mutex_exit(chan_mtx(chan)); |
| 438 | return; |
| 439 | done: |
| 440 | /* Correctly set the buf to indicate a completed xfer */ |
| 441 | bp->b_resid = bp->b_bcount; |
| 442 | biodone(bp); |
| 443 | } |
| 444 | |
| 445 | /* |
| 446 | * ssstart looks to see if there is a buf waiting for the device |
| 447 | * and that the device is not already busy. If both are true, |
| 448 | * It dequeues the buf and creates a scsi command to perform the |
| 449 | * transfer required. The transfer request will call scsipi_done |
| 450 | * on completion, which will in turn call this routine again |
| 451 | * so that the next queued transfer is performed. |
| 452 | * The bufs are queued by the strategy routine (ssstrategy) |
| 453 | * |
| 454 | * This routine is also called after other non-queued requests |
| 455 | * have been made of the scsi driver, to ensure that the queue |
| 456 | * continues to be drained. |
| 457 | * ssstart() is called with channel lock held. |
| 458 | */ |
| 459 | static void |
| 460 | ssstart(struct scsipi_periph *periph) |
| 461 | { |
| 462 | struct ss_softc *ss = device_private(periph->periph_dev); |
| 463 | struct buf *bp; |
| 464 | |
| 465 | SC_DEBUG(periph, SCSIPI_DB2, ("ssstart " )); |
| 466 | |
| 467 | /* See if there is a buf to do and we are not already doing one */ |
| 468 | while (periph->periph_active < periph->periph_openings) { |
| 469 | /* if a special awaits, let it proceed first */ |
| 470 | if (periph->periph_flags & PERIPH_WAITING) { |
| 471 | periph->periph_flags &= ~PERIPH_WAITING; |
| 472 | cv_broadcast(periph_cv_periph(periph)); |
| 473 | return; |
| 474 | } |
| 475 | |
| 476 | /* See if there is a buf with work for us to do.. */ |
| 477 | if ((bp = bufq_peek(ss->buf_queue)) == NULL) |
| 478 | return; |
| 479 | |
| 480 | if (ss->special && ss->special->read) |
| 481 | (ss->special->read)(ss, bp); |
| 482 | else { |
| 483 | /* generic scsi2 scanner read */ |
| 484 | /* XXX add code for SCSI2 scanner read */ |
| 485 | } |
| 486 | } |
| 487 | } |
| 488 | |
| 489 | void |
| 490 | ssrestart(void *v) |
| 491 | { |
| 492 | struct scsipi_periph *periph = v; |
| 493 | struct scsipi_channel *chan = periph->periph_channel; |
| 494 | |
| 495 | mutex_enter(chan_mtx(chan)); |
| 496 | ssstart(periph); |
| 497 | mutex_exit(chan_mtx(chan)); |
| 498 | } |
| 499 | |
| 500 | static void |
| 501 | ssdone(struct scsipi_xfer *xs, int error) |
| 502 | { |
| 503 | struct buf *bp = xs->bp; |
| 504 | |
| 505 | if (bp) { |
| 506 | bp->b_error = error; |
| 507 | bp->b_resid = xs->resid; |
| 508 | biodone(bp); |
| 509 | } |
| 510 | } |
| 511 | |
| 512 | |
| 513 | /* |
| 514 | * Perform special action on behalf of the user; |
| 515 | * knows about the internals of this device |
| 516 | */ |
| 517 | int |
| 518 | ssioctl(dev_t dev, u_long cmd, void *addr, int flag, struct lwp *l) |
| 519 | { |
| 520 | struct ss_softc *ss = device_lookup_private(&ss_cd, SSUNIT(dev)); |
| 521 | int error = 0; |
| 522 | struct scan_io *sio; |
| 523 | |
| 524 | if (!device_is_active(ss->sc_dev)) |
| 525 | return ENODEV; |
| 526 | |
| 527 | switch (cmd) { |
| 528 | case SCIOCGET: |
| 529 | if (ss->special && ss->special->get_params) { |
| 530 | /* call special handler */ |
| 531 | error = (ss->special->get_params)(ss); |
| 532 | if (error) |
| 533 | return error; |
| 534 | } else |
| 535 | /* XXX add code for SCSI2 scanner, if any */ |
| 536 | return EOPNOTSUPP; |
| 537 | memcpy(addr, &ss->sio, sizeof(struct scan_io)); |
| 538 | break; |
| 539 | case SCIOCSET: |
| 540 | sio = (struct scan_io *)addr; |
| 541 | |
| 542 | if (ss->special && ss->special->set_params) { |
| 543 | /* call special handler */ |
| 544 | error = (ss->special->set_params)(ss, sio); |
| 545 | if (error) |
| 546 | return error; |
| 547 | } else |
| 548 | /* XXX add code for SCSI2 scanner, if any */ |
| 549 | return EOPNOTSUPP; |
| 550 | break; |
| 551 | case SCIOCRESTART: |
| 552 | if (ss->special && ss->special->rewind_scanner ) { |
| 553 | /* call special handler */ |
| 554 | error = (ss->special->rewind_scanner)(ss); |
| 555 | if (error) |
| 556 | return error; |
| 557 | } else |
| 558 | /* XXX add code for SCSI2 scanner, if any */ |
| 559 | return EOPNOTSUPP; |
| 560 | ss->flags &= ~SSF_TRIGGERED; |
| 561 | break; |
| 562 | #ifdef NOTYET |
| 563 | case SCAN_USE_ADF: |
| 564 | break; |
| 565 | #endif |
| 566 | default: |
| 567 | return scsipi_do_ioctl(ss->sc_periph, dev, cmd, addr, flag, l); |
| 568 | } |
| 569 | return error; |
| 570 | } |
| 571 | |