sys/dev/usbmisc/uscanner/uscanner.c

   1 /*
   2  * $NetBSD: uscanner.c,v 1.30 2002/07/11 21:14:36 augustss Exp $
   3  * $FreeBSD: src/sys/dev/usb/uscanner.c,v 1.48 2003/12/22 19:58:27 sanpei Exp $
   4  * $DragonFly: src/sys/dev/usbmisc/uscanner/uscanner.c,v 1.23 2007/08/07 10:42:41 hasso Exp $
   5  */
   6
   7 /* Also already merged from NetBSD:
   8  *      $NetBSD: uscanner.c,v 1.33 2002/09/23 05:51:24 simonb Exp $
   9  */
  10
  11 /*
  12  * Copyright (c) 2000 The NetBSD Foundation, Inc.
  13  * All rights reserved.
  14  *
  15  * This code is derived from software contributed to The NetBSD Foundation
  16  * by Lennart Augustsson (lennart@augustsson.net) at
  17  * Carlstedt Research & Technology
  18  * and Nick Hibma (n_hibma@qubesoft.com).
  19  *
  20  * Redistribution and use in source and binary forms, with or without
  21  * modification, are permitted provided that the following conditions
  22  * are met:
  23  * 1. Redistributions of source code must retain the above copyright
  24  *    notice, this list of conditions and the following disclaimer.
  25  * 2. Redistributions in binary form must reproduce the above copyright
  26  *    notice, this list of conditions and the following disclaimer in the
  27  *    documentation and/or other materials provided with the distribution.
  28  * 3. All advertising materials mentioning features or use of this software
  29  *    must display the following acknowledgement:
  30  *        This product includes software developed by the NetBSD
  31  *        Foundation, Inc. and its contributors.
  32  * 4. Neither the name of The NetBSD Foundation nor the names of its
  33  *    contributors may be used to endorse or promote products derived
  34  *    from this software without specific prior written permission.
  35  *
  36  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  37  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  38  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  39  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  40  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  41  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  42  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  43  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  44  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  45  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  46  * POSSIBILITY OF SUCH DAMAGE.
  47  */
  48
  49
  50 #include <sys/param.h>
  51 #include <sys/systm.h>
  52 #include <sys/kernel.h>
  53 #include <sys/malloc.h>
  54 #include <sys/module.h>
  55 #include <sys/bus.h>
  56 #include <sys/conf.h>
  57 #include <sys/fcntl.h>
  58 #include <sys/filio.h>
  59 #include <sys/tty.h>
  60 #include <sys/file.h>
  61 #include <sys/select.h>
  62 #include <sys/proc.h>
  63 #include <sys/poll.h>
  64 #include <sys/conf.h>
  65 #include <sys/sysctl.h>
  66 #include <sys/thread2.h>
  67
  68 #include <bus/usb/usb.h>
  69 #include <bus/usb/usbdi.h>
  70 #include <bus/usb/usbdi_util.h>
  71
  72 #include <bus/usb/usbdevs.h>
  73
  74 #ifdef USB_DEBUG
  75 #define DPRINTF(x)      if (uscannerdebug) kprintf x
  76 #define DPRINTFN(n,x)   if (uscannerdebug>(n)) kprintf x
  77 int     uscannerdebug = 0;
  78 SYSCTL_NODE(_hw_usb, OID_AUTO, uscanner, CTLFLAG_RW, 0, "USB uscanner");
  79 SYSCTL_INT(_hw_usb_uscanner, OID_AUTO, debug, CTLFLAG_RW,
  80            &uscannerdebug, 0, "uscanner debug level");
  81 #else
  82 #define DPRINTF(x)
  83 #define DPRINTFN(n,x)
  84 #endif
  85
  86 struct uscan_info {
  87         struct usb_devno devno;
  88         u_int flags;
  89 #define USC_KEEP_OPEN 1
  90 };
  91
  92 /* Table of scanners that may work with this driver. */
  93 static const struct uscan_info uscanner_devs[] = {
  94   /* Acer Peripherals */
  95  {{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_320U }, 0 },
  96  {{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_640U }, 0 },
  97  {{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_620U }, 0 },
  98  {{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_C310U }, 0 },
  99
 100   /* AGFA */
 101  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCAN1236U }, 0 },
 102  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCAN1212U }, 0 },
 103  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCAN1212U2 }, 0 },
 104  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANTOUCH }, 0 },
 105  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE40 }, 0 },
 106  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE50 }, 0 },
 107  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE20 }, 0 },
 108  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE25 }, 0 },
 109  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE26 }, 0 },
 110  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE52 }, 0 },
 111
 112   /* Avision */
 113  {{ USB_VENDOR_AVISION, USB_PRODUCT_AVISION_1200U }, 0 },
 114
 115   /* Canon */
 116  {{ USB_VENDOR_CANON, USB_PRODUCT_CANON_N656U }, 0 },
 117  {{ USB_VENDOR_CANON, USB_PRODUCT_CANON_N676U }, 0 },
 118  {{ USB_VENDOR_CANON, USB_PRODUCT_CANON_D660U }, 0 },
 119
 120   /* Kye */
 121  {{ USB_VENDOR_KYE, USB_PRODUCT_KYE_VIVIDPRO }, 0 },
 122
 123   /* HP */
 124  {{ USB_VENDOR_HP, USB_PRODUCT_HP_2200C }, 0 },
 125  {{ USB_VENDOR_HP, USB_PRODUCT_HP_3300C }, 0 },
 126  {{ USB_VENDOR_HP, USB_PRODUCT_HP_3400CSE }, 0 },
 127  {{ USB_VENDOR_HP, USB_PRODUCT_HP_4100C }, 0 },
 128  {{ USB_VENDOR_HP, USB_PRODUCT_HP_4200C }, 0 },
 129  {{ USB_VENDOR_HP, USB_PRODUCT_HP_4300C }, 0 },
 130  {{ USB_VENDOR_HP, USB_PRODUCT_HP_S20 }, 0 },
 131  {{ USB_VENDOR_HP, USB_PRODUCT_HP_5200C }, 0 },
 132  {{ USB_VENDOR_HP, USB_PRODUCT_HP_5300C }, 0 },
 133  {{ USB_VENDOR_HP, USB_PRODUCT_HP_5400C }, 0 },
 134  {{ USB_VENDOR_HP, USB_PRODUCT_HP_6200C }, 0 },
 135  {{ USB_VENDOR_HP, USB_PRODUCT_HP_6300C }, 0 },
 136
 137   /* Microtek */
 138  {{ USB_VENDOR_SCANLOGIC, USB_PRODUCT_SCANLOGIC_336CX }, 0 },
 139  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_X6U }, 0 },
 140  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_336CX }, 0 },
 141  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_336CX2 }, 0 },
 142  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_C6 }, 0 },
 143  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_V6USL }, 0 },
 144  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_V6USL2 }, 0 },
 145  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_V6UL }, 0 },
 146
 147   /* Minolta */
 148  {{ USB_VENDOR_MINOLTA, USB_PRODUCT_MINOLTA_5400 }, 0 },
 149
 150   /* Mustek */
 151  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200CU }, 0 },
 152  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_BEARPAW1200F }, 0 },
 153  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_BEARPAW1200TA }, 0 },
 154  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_600USB }, 0 },
 155  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_600CU }, 0 },
 156  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200USB }, 0 },
 157  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200UB }, 0 },
 158  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200USBPLUS }, 0 },
 159  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200CUPLUS }, 0 },
 160
 161   /* National */
 162  {{ USB_VENDOR_NATIONAL, USB_PRODUCT_NATIONAL_BEARPAW1200 }, 0 },
 163  {{ USB_VENDOR_NATIONAL, USB_PRODUCT_NATIONAL_BEARPAW2400 }, 0 },
 164
 165   /* Primax */
 166  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2X300 }, 0 },
 167  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2E300 }, 0 },
 168  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2300 }, 0 },
 169  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2E3002 }, 0 },
 170  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_9600 }, 0 },
 171  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_600U }, 0 },
 172  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_6200 }, 0 },
 173  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_19200 }, 0 },
 174  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_1200U }, 0 },
 175  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G600 }, 0 },
 176  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_636I }, 0 },
 177  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2600 }, 0 },
 178  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2E600 }, 0 },
 179
 180   /* Epson */
 181  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_636 }, 0 },
 182  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_610 }, 0 },
 183  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1200 }, 0 },
 184  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1240 }, 0 },
 185  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1250 }, 0 },
 186  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1600 }, 0 },
 187  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1640 }, 0 },
 188  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_640U }, 0 },
 189  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1650 }, 0 },
 190  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1660 }, 0 },
 191  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1260 }, 0 },
 192  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_GT9700F }, USC_KEEP_OPEN },
 193  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_GT9300UF }, 0 },
 194
 195   /* UMAX */
 196  {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA1220U }, 0 },
 197  {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA1236U }, 0 },
 198  {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA2000U }, 0 },
 199  {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA2100U }, 0 },
 200  {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA2200U }, 0 },
 201  {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA3400 }, 0 },
 202
 203   /* Visioneer */
 204  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_3000 }, 0 },
 205  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_5300 }, 0 },
 206  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_7600 }, 0 },
 207  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_6100 }, 0 },
 208  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_6200 }, 0 },
 209  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_8100 }, 0 },
 210  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_8600 }, 0 },
 211
 212   /* Ultima */
 213  {{ USB_VENDOR_ULTIMA, USB_PRODUCT_ULTIMA_1200UBPLUS }, 0 },
 214
 215 };
 216 #define uscanner_lookup(v, p) ((const struct uscan_info *)usb_lookup(uscanner_devs, v, p))
 217
 218 #define USCANNER_BUFFERSIZE     1024
 219
 220 struct uscanner_softc {
 221         device_t                sc_dev;         /* base device */
 222         usbd_device_handle      sc_udev;
 223         usbd_interface_handle   sc_iface;
 224
 225         u_int                   sc_dev_flags;
 226
 227         usbd_pipe_handle        sc_bulkin_pipe;
 228         int                     sc_bulkin;
 229         usbd_xfer_handle        sc_bulkin_xfer;
 230         void                    *sc_bulkin_buffer;
 231         int                     sc_bulkin_bufferlen;
 232         int                     sc_bulkin_datalen;
 233
 234         usbd_pipe_handle        sc_bulkout_pipe;
 235         int                     sc_bulkout;
 236         usbd_xfer_handle        sc_bulkout_xfer;
 237         void                    *sc_bulkout_buffer;
 238         int                     sc_bulkout_bufferlen;
 239         int                     sc_bulkout_datalen;
 240
 241         u_char                  sc_state;
 242 #define USCANNER_OPEN           0x01    /* opened */
 243
 244         int                     sc_refcnt;
 245         u_char                  sc_dying;
 246 };
 247
 248 d_open_t  uscanneropen;
 249 d_close_t uscannerclose;
 250 d_read_t  uscannerread;
 251 d_write_t uscannerwrite;
 252 d_poll_t  uscannerpoll;
 253
 254 #define USCANNER_CDEV_MAJOR     156
 255
 256 static struct dev_ops uscanner_ops = {
 257         { "uscanner", USCANNER_CDEV_MAJOR, 0 },
 258         .d_open =       uscanneropen,
 259         .d_close =      uscannerclose,
 260         .d_read =       uscannerread,
 261         .d_write =      uscannerwrite,
 262         .d_poll =       uscannerpoll,
 263 };
 264
 265 static int uscanner_do_read(struct uscanner_softc *, struct uio *, int);
 266 static int uscanner_do_write(struct uscanner_softc *, struct uio *, int);
 267 static void uscanner_do_close(struct uscanner_softc *);
 268
 269 #define USCANNERUNIT(n) (minor(n))
 270
 271 static device_probe_t uscanner_match;
 272 static device_attach_t uscanner_attach;
 273 static device_detach_t uscanner_detach;
 274
 275 static devclass_t uscanner_devclass;
 276
 277 static kobj_method_t uscanner_methods[] = {
 278         DEVMETHOD(device_probe, uscanner_match),
 279         DEVMETHOD(device_attach, uscanner_attach),
 280         DEVMETHOD(device_detach, uscanner_detach),
 281         {0,0}
 282 };
 283
 284 static driver_t uscanner_driver = {
 285         "uscanner",
 286         uscanner_methods,
 287         sizeof(struct uscanner_softc)
 288 };
 289
 290 MODULE_DEPEND(uscanner, usb, 1, 1, 1);
 291
 292 static int
 293 uscanner_match(device_t self)
 294 {
 295         struct usb_attach_arg *uaa = device_get_ivars(self);
 296
 297         if (uaa->iface != NULL)
 298                 return UMATCH_NONE;
 299
 300         return (uscanner_lookup(uaa->vendor, uaa->product) != NULL ?
 301                 UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
 302 }
 303
 304 static int
 305 uscanner_attach(device_t self)
 306 {
 307         struct uscanner_softc *sc = device_get_softc(self);
 308         struct usb_attach_arg *uaa = device_get_ivars(self);
 309         usb_interface_descriptor_t *id = 0;
 310         usb_endpoint_descriptor_t *ed, *ed_bulkin = NULL, *ed_bulkout = NULL;
 311         char devinfo[1024];
 312         int i;
 313         usbd_status err;
 314
 315         usbd_devinfo(uaa->device, 0, devinfo);
 316         sc->sc_dev = self;
 317         device_set_desc_copy(self, devinfo);
 318         kprintf("%s: %s\n", device_get_nameunit(sc->sc_dev), devinfo);
 319
 320         sc->sc_dev_flags = uscanner_lookup(uaa->vendor, uaa->product)->flags;
 321
 322         sc->sc_udev = uaa->device;
 323
 324         err = usbd_set_config_no(uaa->device, 1, 1); /* XXX */
 325         if (err) {
 326                 kprintf("%s: setting config no failed\n",
 327                     device_get_nameunit(sc->sc_dev));
 328                 return ENXIO;
 329         }
 330
 331         /* XXX We only check the first interface */
 332         err = usbd_device2interface_handle(sc->sc_udev, 0, &sc->sc_iface);
 333         if (!err && sc->sc_iface)
 334             id = usbd_get_interface_descriptor(sc->sc_iface);
 335         if (err || id == 0) {
 336                 kprintf("%s: could not get interface descriptor, err=%d,id=%p\n",
 337                        device_get_nameunit(sc->sc_dev), err, id);
 338                 return ENXIO;
 339         }
 340
 341         /* Find the two first bulk endpoints */
 342         for (i = 0 ; i < id->bNumEndpoints; i++) {
 343                 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
 344                 if (ed == 0) {
 345                         kprintf("%s: could not read endpoint descriptor\n",
 346                                device_get_nameunit(sc->sc_dev));
 347                         return ENXIO;
 348                 }
 349
 350                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN
 351                     && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
 352                         ed_bulkin = ed;
 353                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT
 354                     && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
 355                         ed_bulkout = ed;
 356                 }
 357
 358                 if (ed_bulkin && ed_bulkout)    /* found all we need */
 359                         break;
 360         }
 361
 362         /* Verify that we goething sensible */
 363         if (ed_bulkin == NULL || ed_bulkout == NULL) {
 364                 kprintf("%s: bulk-in and/or bulk-out endpoint not found\n",
 365                         device_get_nameunit(sc->sc_dev));
 366                 return ENXIO;
 367         }
 368
 369         sc->sc_bulkin = ed_bulkin->bEndpointAddress;
 370         sc->sc_bulkout = ed_bulkout->bEndpointAddress;
 371
 372         /* the main device, ctrl endpoint */
 373         dev_ops_add(&uscanner_ops, -1, device_get_unit(sc->sc_dev));
 374         make_dev(&uscanner_ops, device_get_unit(sc->sc_dev),
 375                 UID_ROOT, GID_OPERATOR, 0644, "%s", device_get_nameunit(sc->sc_dev));
 376
 377         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
 378                            sc->sc_dev);
 379
 380         return 0;
 381 }
 382
 383 int
 384 uscanneropen(struct dev_open_args *ap)
 385 {
 386         cdev_t dev = ap->a_head.a_dev;
 387         struct uscanner_softc *sc;
 388         int unit = USCANNERUNIT(dev);
 389         usbd_status err;
 390
 391         sc = devclass_get_softc(uscanner_devclass, unit);
 392         if (sc == NULL)
 393                 return (ENXIO);
 394
 395         DPRINTFN(5, ("uscanneropen: flag=%d, mode=%d, unit=%d\n",
 396                      ap->a_oflags, ap->a_devtype, unit));
 397
 398         if (sc->sc_dying)
 399                 return (ENXIO);
 400
 401         if (sc->sc_state & USCANNER_OPEN)
 402                 return (EBUSY);
 403
 404         sc->sc_state |= USCANNER_OPEN;
 405
 406         sc->sc_bulkin_buffer = kmalloc(USCANNER_BUFFERSIZE, M_USBDEV, M_WAITOK);
 407         sc->sc_bulkout_buffer = kmalloc(USCANNER_BUFFERSIZE, M_USBDEV, M_WAITOK);
 408         /* No need to check buffers for NULL since we have WAITOK */
 409
 410         sc->sc_bulkin_bufferlen = USCANNER_BUFFERSIZE;
 411         sc->sc_bulkout_bufferlen = USCANNER_BUFFERSIZE;
 412
 413         /* We have decided on which endpoints to use, now open the pipes */
 414         if (sc->sc_bulkin_pipe == NULL) {
 415                 err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin,
 416                                      USBD_EXCLUSIVE_USE, &sc->sc_bulkin_pipe);
 417                 if (err) {
 418                         kprintf("%s: cannot open bulk-in pipe (addr %d)\n",
 419                                device_get_nameunit(sc->sc_dev), sc->sc_bulkin);
 420                         uscanner_do_close(sc);
 421                         return (EIO);
 422                 }
 423         }
 424         if (sc->sc_bulkout_pipe == NULL) {
 425                 err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkout,
 426                                      USBD_EXCLUSIVE_USE, &sc->sc_bulkout_pipe);
 427                 if (err) {
 428                         kprintf("%s: cannot open bulk-out pipe (addr %d)\n",
 429                                device_get_nameunit(sc->sc_dev), sc->sc_bulkout);
 430                         uscanner_do_close(sc);
 431                         return (EIO);
 432                 }
 433         }
 434
 435         sc->sc_bulkin_xfer = usbd_alloc_xfer(sc->sc_udev);
 436         if (sc->sc_bulkin_xfer == NULL) {
 437                 uscanner_do_close(sc);
 438                 return (ENOMEM);
 439         }
 440         sc->sc_bulkout_xfer = usbd_alloc_xfer(sc->sc_udev);
 441         if (sc->sc_bulkout_xfer == NULL) {
 442                 uscanner_do_close(sc);
 443                 return (ENOMEM);
 444         }
 445
 446         return (0);     /* success */
 447 }
 448
 449 int
 450 uscannerclose(struct dev_close_args *ap)
 451 {
 452         cdev_t dev = ap->a_head.a_dev;
 453         struct uscanner_softc *sc;
 454
 455         sc = devclass_get_softc(uscanner_devclass, USCANNERUNIT(dev));
 456
 457         DPRINTFN(5, ("uscannerclose: flag=%d, mode=%d, unit=%d\n",
 458                      ap->a_fflag, ap->a_devtype, USCANNERUNIT(dev)));
 459
 460 #ifdef DIAGNOSTIC
 461         if (!(sc->sc_state & USCANNER_OPEN)) {
 462                 kprintf("uscannerclose: not open\n");
 463                 return (EINVAL);
 464         }
 465 #endif
 466
 467         uscanner_do_close(sc);
 468
 469         return (0);
 470 }
 471
 472 void
 473 uscanner_do_close(struct uscanner_softc *sc)
 474 {
 475         if (sc->sc_bulkin_xfer) {
 476                 usbd_free_xfer(sc->sc_bulkin_xfer);
 477                 sc->sc_bulkin_xfer = NULL;
 478         }
 479         if (sc->sc_bulkout_xfer) {
 480                 usbd_free_xfer(sc->sc_bulkout_xfer);
 481                 sc->sc_bulkout_xfer = NULL;
 482         }
 483
 484         if (!(sc->sc_dev_flags & USC_KEEP_OPEN)) {
 485                 if (sc->sc_bulkin_pipe != NULL) {
 486                         usbd_abort_pipe(sc->sc_bulkin_pipe);
 487                         usbd_close_pipe(sc->sc_bulkin_pipe);
 488                         sc->sc_bulkin_pipe = NULL;
 489                 }
 490                 if (sc->sc_bulkout_pipe != NULL) {
 491                         usbd_abort_pipe(sc->sc_bulkout_pipe);
 492                         usbd_close_pipe(sc->sc_bulkout_pipe);
 493                         sc->sc_bulkout_pipe = NULL;
 494                 }
 495         }
 496
 497         if (sc->sc_bulkin_buffer) {
 498                 kfree(sc->sc_bulkin_buffer, M_USBDEV);
 499                 sc->sc_bulkin_buffer = NULL;
 500         }
 501         if (sc->sc_bulkout_buffer) {
 502                 kfree(sc->sc_bulkout_buffer, M_USBDEV);
 503                 sc->sc_bulkout_buffer = NULL;
 504         }
 505
 506         sc->sc_state &= ~USCANNER_OPEN;
 507 }
 508
 509 static int
 510 uscanner_do_read(struct uscanner_softc *sc, struct uio *uio, int flag)
 511 {
 512         u_int32_t n, tn;
 513         usbd_status err;
 514         int error = 0;
 515
 516         DPRINTFN(5, ("%s: uscannerread\n", device_get_nameunit(sc->sc_dev)));
 517
 518         if (sc->sc_dying)
 519                 return (EIO);
 520
 521         while ((n = min(sc->sc_bulkin_bufferlen, uio->uio_resid)) != 0) {
 522                 DPRINTFN(1, ("uscannerread: start transfer %d bytes\n",n));
 523                 tn = n;
 524
 525                 err = usbd_bulk_transfer(
 526                         sc->sc_bulkin_xfer, sc->sc_bulkin_pipe,
 527                         USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT,
 528                         sc->sc_bulkin_buffer, &tn,
 529                         "uscnrb");
 530                 if (err) {
 531                         if (err == USBD_INTERRUPTED)
 532                                 error = EINTR;
 533                         else if (err == USBD_TIMEOUT)
 534                                 error = ETIMEDOUT;
 535                         else
 536                                 error = EIO;
 537                         break;
 538                 }
 539                 DPRINTFN(1, ("uscannerread: got %d bytes\n", tn));
 540                 error = uiomove(sc->sc_bulkin_buffer, tn, uio);
 541                 if (error || tn < n)
 542                         break;
 543         }
 544
 545         return (error);
 546 }
 547
 548 int
 549 uscannerread(struct dev_read_args *ap)
 550 {
 551         cdev_t dev = ap->a_head.a_dev;
 552         struct uscanner_softc *sc;
 553         int error;
 554
 555         sc = devclass_get_softc(uscanner_devclass, USCANNERUNIT(dev));
 556
 557         sc->sc_refcnt++;
 558         error = uscanner_do_read(sc, ap->a_uio, ap->a_ioflag);
 559         if (--sc->sc_refcnt < 0)
 560                 usb_detach_wakeup(sc->sc_dev);
 561
 562         return (error);
 563 }
 564
 565 static int
 566 uscanner_do_write(struct uscanner_softc *sc, struct uio *uio, int flag)
 567 {
 568         u_int32_t n;
 569         int error = 0;
 570         usbd_status err;
 571
 572         DPRINTFN(5, ("%s: uscanner_do_write\n", device_get_nameunit(sc->sc_dev)));
 573
 574         if (sc->sc_dying)
 575                 return (EIO);
 576
 577         while ((n = min(sc->sc_bulkout_bufferlen, uio->uio_resid)) != 0) {
 578                 error = uiomove(sc->sc_bulkout_buffer, n, uio);
 579                 if (error)
 580                         break;
 581                 DPRINTFN(1, ("uscanner_do_write: transfer %d bytes\n", n));
 582                 err = usbd_bulk_transfer(
 583                         sc->sc_bulkout_xfer, sc->sc_bulkout_pipe,
 584                         0, USBD_NO_TIMEOUT,
 585                         sc->sc_bulkout_buffer, &n,
 586                         "uscnwb");
 587                 if (err) {
 588                         if (err == USBD_INTERRUPTED)
 589                                 error = EINTR;
 590                         else
 591                                 error = EIO;
 592                         break;
 593                 }
 594         }
 595
 596         return (error);
 597 }
 598
 599 int
 600 uscannerwrite(struct dev_write_args *ap)
 601 {
 602         cdev_t dev = ap->a_head.a_dev;
 603         struct uscanner_softc *sc;
 604         int error;
 605
 606         sc = devclass_get_softc(uscanner_devclass, USCANNERUNIT(dev));
 607
 608         sc->sc_refcnt++;
 609         error = uscanner_do_write(sc, ap->a_uio, ap->a_ioflag);
 610         if (--sc->sc_refcnt < 0)
 611                 usb_detach_wakeup(sc->sc_dev);
 612         return (error);
 613 }
 614
 615 static int
 616 uscanner_detach(device_t self)
 617 {
 618         struct uscanner_softc *sc = device_get_softc(self);
 619
 620         DPRINTF(("uscanner_detach: sc=%p\n", sc));
 621
 622         sc->sc_dying = 1;
 623         sc->sc_dev_flags = 0;   /* make close really close device */
 624
 625         /* Abort all pipes.  Causes processes waiting for transfer to wake. */
 626         if (sc->sc_bulkin_pipe != NULL)
 627                 usbd_abort_pipe(sc->sc_bulkin_pipe);
 628         if (sc->sc_bulkout_pipe != NULL)
 629                 usbd_abort_pipe(sc->sc_bulkout_pipe);
 630
 631         crit_enter();
 632         if (--sc->sc_refcnt >= 0) {
 633                 /* Wait for processes to go away. */
 634                 usb_detach_wait(sc->sc_dev);
 635         }
 636         crit_exit();
 637
 638         /* destroy the device for the control endpoint */
 639         dev_ops_remove(&uscanner_ops, -1, device_get_unit(sc->sc_dev));
 640
 641         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
 642                            sc->sc_dev);
 643
 644         return (0);
 645 }
 646
 647 int
 648 uscannerpoll(struct dev_poll_args *ap)
 649 {
 650         cdev_t dev = ap->a_head.a_dev;
 651         struct uscanner_softc *sc;
 652         int revents = 0;
 653
 654         sc = devclass_get_softc(uscanner_devclass, USCANNERUNIT(dev));
 655
 656         if (sc->sc_dying)
 657                 return (EIO);
 658
 659         /*
 660          * We have no easy way of determining if a read will
 661          * yield any data or a write will happen.
 662          * Pretend they will.
 663          */
 664         revents |= ap->a_events &
 665                    (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM);
 666
 667         ap->a_events = revents;
 668         return (0);
 669 }
 670
 671 DRIVER_MODULE(uscanner, uhub, uscanner_driver, uscanner_devclass, usbd_driver_load, 0);
 672