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 1.21 2007/07/02 06:43:31 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/vnode.h>
  64 #include <sys/poll.h>
  65 #include <sys/conf.h>
  66 #include <sys/sysctl.h>
  67 #include <sys/thread2.h>
  68
  69 #include <bus/usb/usb.h>
  70 #include <bus/usb/usbdi.h>
  71 #include <bus/usb/usbdi_util.h>
  72
  73 #include <bus/usb/usbdevs.h>
  74
  75 #ifdef USB_DEBUG
  76 #define DPRINTF(x)      if (uscannerdebug) kprintf x
  77 #define DPRINTFN(n,x)   if (uscannerdebug>(n)) kprintf x
  78 int     uscannerdebug = 0;
  79 SYSCTL_NODE(_hw_usb, OID_AUTO, uscanner, CTLFLAG_RW, 0, "USB uscanner");
  80 SYSCTL_INT(_hw_usb_uscanner, OID_AUTO, debug, CTLFLAG_RW,
  81            &uscannerdebug, 0, "uscanner debug level");
  82 #else
  83 #define DPRINTF(x)
  84 #define DPRINTFN(n,x)
  85 #endif
  86
  87 struct uscan_info {
  88         struct usb_devno devno;
  89         u_int flags;
  90 #define USC_KEEP_OPEN 1
  91 };
  92
  93 /* Table of scanners that may work with this driver. */
  94 static const struct uscan_info uscanner_devs[] = {
  95   /* Acer Peripherals */
  96  {{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_320U }, 0 },
  97  {{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_640U }, 0 },
  98  {{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_620U }, 0 },
  99  {{ USB_VENDOR_ACERP, USB_PRODUCT_ACERP_ACERSCAN_C310U }, 0 },
 100
 101   /* AGFA */
 102  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCAN1236U }, 0 },
 103  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCAN1212U }, 0 },
 104  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCAN1212U2 }, 0 },
 105  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANTOUCH }, 0 },
 106  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE40 }, 0 },
 107  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE50 }, 0 },
 108  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE20 }, 0 },
 109  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE25 }, 0 },
 110  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE26 }, 0 },
 111  {{ USB_VENDOR_AGFA, USB_PRODUCT_AGFA_SNAPSCANE52 }, 0 },
 112
 113   /* Avision */
 114  {{ USB_VENDOR_AVISION, USB_PRODUCT_AVISION_1200U }, 0 },
 115
 116   /* Canon */
 117  {{ USB_VENDOR_CANON, USB_PRODUCT_CANON_N656U }, 0 },
 118  {{ USB_VENDOR_CANON, USB_PRODUCT_CANON_N676U }, 0 },
 119  {{ USB_VENDOR_CANON, USB_PRODUCT_CANON_D660U }, 0 },
 120
 121   /* Kye */
 122  {{ USB_VENDOR_KYE, USB_PRODUCT_KYE_VIVIDPRO }, 0 },
 123
 124   /* HP */
 125  {{ USB_VENDOR_HP, USB_PRODUCT_HP_2200C }, 0 },
 126  {{ USB_VENDOR_HP, USB_PRODUCT_HP_3300C }, 0 },
 127  {{ USB_VENDOR_HP, USB_PRODUCT_HP_3400CSE }, 0 },
 128  {{ USB_VENDOR_HP, USB_PRODUCT_HP_4100C }, 0 },
 129  {{ USB_VENDOR_HP, USB_PRODUCT_HP_4200C }, 0 },
 130  {{ USB_VENDOR_HP, USB_PRODUCT_HP_4300C }, 0 },
 131  {{ USB_VENDOR_HP, USB_PRODUCT_HP_S20 }, 0 },
 132  {{ USB_VENDOR_HP, USB_PRODUCT_HP_5200C }, 0 },
 133  {{ USB_VENDOR_HP, USB_PRODUCT_HP_5300C }, 0 },
 134  {{ USB_VENDOR_HP, USB_PRODUCT_HP_5400C }, 0 },
 135  {{ USB_VENDOR_HP, USB_PRODUCT_HP_6200C }, 0 },
 136  {{ USB_VENDOR_HP, USB_PRODUCT_HP_6300C }, 0 },
 137
 138   /* Microtek */
 139  {{ USB_VENDOR_SCANLOGIC, USB_PRODUCT_SCANLOGIC_336CX }, 0 },
 140  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_X6U }, 0 },
 141  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_336CX }, 0 },
 142  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_336CX2 }, 0 },
 143  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_C6 }, 0 },
 144  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_V6USL }, 0 },
 145  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_V6USL2 }, 0 },
 146  {{ USB_VENDOR_MICROTEK, USB_PRODUCT_MICROTEK_V6UL }, 0 },
 147
 148   /* Minolta */
 149  {{ USB_VENDOR_MINOLTA, USB_PRODUCT_MINOLTA_5400 }, 0 },
 150
 151   /* Mustek */
 152  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200CU }, 0 },
 153  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_BEARPAW1200F }, 0 },
 154  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_BEARPAW1200TA }, 0 },
 155  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_600USB }, 0 },
 156  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_600CU }, 0 },
 157  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200USB }, 0 },
 158  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200UB }, 0 },
 159  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200USBPLUS }, 0 },
 160  {{ USB_VENDOR_MUSTEK, USB_PRODUCT_MUSTEK_1200CUPLUS }, 0 },
 161
 162   /* National */
 163  {{ USB_VENDOR_NATIONAL, USB_PRODUCT_NATIONAL_BEARPAW1200 }, 0 },
 164  {{ USB_VENDOR_NATIONAL, USB_PRODUCT_NATIONAL_BEARPAW2400 }, 0 },
 165
 166   /* Primax */
 167  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2X300 }, 0 },
 168  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2E300 }, 0 },
 169  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2300 }, 0 },
 170  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2E3002 }, 0 },
 171  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_9600 }, 0 },
 172  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_600U }, 0 },
 173  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_6200 }, 0 },
 174  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_19200 }, 0 },
 175  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_1200U }, 0 },
 176  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G600 }, 0 },
 177  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_636I }, 0 },
 178  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2600 }, 0 },
 179  {{ USB_VENDOR_PRIMAX, USB_PRODUCT_PRIMAX_G2E600 }, 0 },
 180
 181   /* Epson */
 182  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_636 }, 0 },
 183  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_610 }, 0 },
 184  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1200 }, 0 },
 185  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1240 }, 0 },
 186  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1250 }, 0 },
 187  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1600 }, 0 },
 188  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1640 }, 0 },
 189  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_640U }, 0 },
 190  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1650 }, 0 },
 191  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1660 }, 0 },
 192  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_1260 }, 0 },
 193  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_GT9700F }, USC_KEEP_OPEN },
 194  {{ USB_VENDOR_EPSON, USB_PRODUCT_EPSON_GT9300UF }, 0 },
 195
 196   /* UMAX */
 197  {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA1220U }, 0 },
 198  {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA1236U }, 0 },
 199  {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA2000U }, 0 },
 200  {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA2100U }, 0 },
 201  {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA2200U }, 0 },
 202  {{ USB_VENDOR_UMAX, USB_PRODUCT_UMAX_ASTRA3400 }, 0 },
 203
 204   /* Visioneer */
 205  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_3000 }, 0 },
 206  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_5300 }, 0 },
 207  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_7600 }, 0 },
 208  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_6100 }, 0 },
 209  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_6200 }, 0 },
 210  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_8100 }, 0 },
 211  {{ USB_VENDOR_VISIONEER, USB_PRODUCT_VISIONEER_8600 }, 0 },
 212
 213   /* Ultima */
 214  {{ USB_VENDOR_ULTIMA, USB_PRODUCT_ULTIMA_1200UBPLUS }, 0 },
 215
 216 };
 217 #define uscanner_lookup(v, p) ((const struct uscan_info *)usb_lookup(uscanner_devs, v, p))
 218
 219 #define USCANNER_BUFFERSIZE     1024
 220
 221 struct uscanner_softc {
 222         device_t                sc_dev;         /* base device */
 223         usbd_device_handle      sc_udev;
 224         usbd_interface_handle   sc_iface;
 225
 226         u_int                   sc_dev_flags;
 227
 228         usbd_pipe_handle        sc_bulkin_pipe;
 229         int                     sc_bulkin;
 230         usbd_xfer_handle        sc_bulkin_xfer;
 231         void                    *sc_bulkin_buffer;
 232         int                     sc_bulkin_bufferlen;
 233         int                     sc_bulkin_datalen;
 234
 235         usbd_pipe_handle        sc_bulkout_pipe;
 236         int                     sc_bulkout;
 237         usbd_xfer_handle        sc_bulkout_xfer;
 238         void                    *sc_bulkout_buffer;
 239         int                     sc_bulkout_bufferlen;
 240         int                     sc_bulkout_datalen;
 241
 242         u_char                  sc_state;
 243 #define USCANNER_OPEN           0x01    /* opened */
 244
 245         int                     sc_refcnt;
 246         u_char                  sc_dying;
 247 };
 248
 249 d_open_t  uscanneropen;
 250 d_close_t uscannerclose;
 251 d_read_t  uscannerread;
 252 d_write_t uscannerwrite;
 253 d_poll_t  uscannerpoll;
 254
 255 #define USCANNER_CDEV_MAJOR     156
 256
 257 static struct dev_ops uscanner_ops = {
 258         { "uscanner", USCANNER_CDEV_MAJOR, 0 },
 259         .d_open =       uscanneropen,
 260         .d_close =      uscannerclose,
 261         .d_read =       uscannerread,
 262         .d_write =      uscannerwrite,
 263         .d_poll =       uscannerpoll,
 264 };
 265
 266 static int uscanner_do_read(struct uscanner_softc *, struct uio *, int);
 267 static int uscanner_do_write(struct uscanner_softc *, struct uio *, int);
 268 static void uscanner_do_close(struct uscanner_softc *);
 269
 270 #define USCANNERUNIT(n) (minor(n))
 271
 272 USB_DECLARE_DRIVER(uscanner);
 273
 274 static int
 275 uscanner_match(device_t self)
 276 {
 277         struct usb_attach_arg *uaa = device_get_ivars(self);
 278
 279         if (uaa->iface != NULL)
 280                 return UMATCH_NONE;
 281
 282         return (uscanner_lookup(uaa->vendor, uaa->product) != NULL ?
 283                 UMATCH_VENDOR_PRODUCT : UMATCH_NONE);
 284 }
 285
 286 static int
 287 uscanner_attach(device_t self)
 288 {
 289         struct uscanner_softc *sc = device_get_softc(self);
 290         struct usb_attach_arg *uaa = device_get_ivars(self);
 291         usb_interface_descriptor_t *id = 0;
 292         usb_endpoint_descriptor_t *ed, *ed_bulkin = NULL, *ed_bulkout = NULL;
 293         char devinfo[1024];
 294         int i;
 295         usbd_status err;
 296
 297         usbd_devinfo(uaa->device, 0, devinfo);
 298         sc->sc_dev = self;
 299         device_set_desc_copy(self, devinfo);
 300         kprintf("%s: %s\n", device_get_nameunit(sc->sc_dev), devinfo);
 301
 302         sc->sc_dev_flags = uscanner_lookup(uaa->vendor, uaa->product)->flags;
 303
 304         sc->sc_udev = uaa->device;
 305
 306         err = usbd_set_config_no(uaa->device, 1, 1); /* XXX */
 307         if (err) {
 308                 kprintf("%s: setting config no failed\n",
 309                     device_get_nameunit(sc->sc_dev));
 310                 return ENXIO;
 311         }
 312
 313         /* XXX We only check the first interface */
 314         err = usbd_device2interface_handle(sc->sc_udev, 0, &sc->sc_iface);
 315         if (!err && sc->sc_iface)
 316             id = usbd_get_interface_descriptor(sc->sc_iface);
 317         if (err || id == 0) {
 318                 kprintf("%s: could not get interface descriptor, err=%d,id=%p\n",
 319                        device_get_nameunit(sc->sc_dev), err, id);
 320                 return ENXIO;
 321         }
 322
 323         /* Find the two first bulk endpoints */
 324         for (i = 0 ; i < id->bNumEndpoints; i++) {
 325                 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i);
 326                 if (ed == 0) {
 327                         kprintf("%s: could not read endpoint descriptor\n",
 328                                device_get_nameunit(sc->sc_dev));
 329                         return ENXIO;
 330                 }
 331
 332                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN
 333                     && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
 334                         ed_bulkin = ed;
 335                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT
 336                     && (ed->bmAttributes & UE_XFERTYPE) == UE_BULK) {
 337                         ed_bulkout = ed;
 338                 }
 339
 340                 if (ed_bulkin && ed_bulkout)    /* found all we need */
 341                         break;
 342         }
 343
 344         /* Verify that we goething sensible */
 345         if (ed_bulkin == NULL || ed_bulkout == NULL) {
 346                 kprintf("%s: bulk-in and/or bulk-out endpoint not found\n",
 347                         device_get_nameunit(sc->sc_dev));
 348                 return ENXIO;
 349         }
 350
 351         sc->sc_bulkin = ed_bulkin->bEndpointAddress;
 352         sc->sc_bulkout = ed_bulkout->bEndpointAddress;
 353
 354         /* the main device, ctrl endpoint */
 355         dev_ops_add(&uscanner_ops, -1, device_get_unit(sc->sc_dev));
 356         make_dev(&uscanner_ops, device_get_unit(sc->sc_dev),
 357                 UID_ROOT, GID_OPERATOR, 0644, "%s", device_get_nameunit(sc->sc_dev));
 358
 359         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
 360                            sc->sc_dev);
 361
 362         return 0;
 363 }
 364
 365 int
 366 uscanneropen(struct dev_open_args *ap)
 367 {
 368         cdev_t dev = ap->a_head.a_dev;
 369         struct uscanner_softc *sc;
 370         int unit = USCANNERUNIT(dev);
 371         usbd_status err;
 372
 373         sc = devclass_get_softc(uscanner_devclass, unit);
 374         if (sc == NULL)
 375                 return (ENXIO);
 376
 377         DPRINTFN(5, ("uscanneropen: flag=%d, mode=%d, unit=%d\n",
 378                      ap->a_oflags, ap->a_devtype, unit));
 379
 380         if (sc->sc_dying)
 381                 return (ENXIO);
 382
 383         if (sc->sc_state & USCANNER_OPEN)
 384                 return (EBUSY);
 385
 386         sc->sc_state |= USCANNER_OPEN;
 387
 388         sc->sc_bulkin_buffer = kmalloc(USCANNER_BUFFERSIZE, M_USBDEV, M_WAITOK);
 389         sc->sc_bulkout_buffer = kmalloc(USCANNER_BUFFERSIZE, M_USBDEV, M_WAITOK);
 390         /* No need to check buffers for NULL since we have WAITOK */
 391
 392         sc->sc_bulkin_bufferlen = USCANNER_BUFFERSIZE;
 393         sc->sc_bulkout_bufferlen = USCANNER_BUFFERSIZE;
 394
 395         /* We have decided on which endpoints to use, now open the pipes */
 396         if (sc->sc_bulkin_pipe == NULL) {
 397                 err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkin,
 398                                      USBD_EXCLUSIVE_USE, &sc->sc_bulkin_pipe);
 399                 if (err) {
 400                         kprintf("%s: cannot open bulk-in pipe (addr %d)\n",
 401                                device_get_nameunit(sc->sc_dev), sc->sc_bulkin);
 402                         uscanner_do_close(sc);
 403                         return (EIO);
 404                 }
 405         }
 406         if (sc->sc_bulkout_pipe == NULL) {
 407                 err = usbd_open_pipe(sc->sc_iface, sc->sc_bulkout,
 408                                      USBD_EXCLUSIVE_USE, &sc->sc_bulkout_pipe);
 409                 if (err) {
 410                         kprintf("%s: cannot open bulk-out pipe (addr %d)\n",
 411                                device_get_nameunit(sc->sc_dev), sc->sc_bulkout);
 412                         uscanner_do_close(sc);
 413                         return (EIO);
 414                 }
 415         }
 416
 417         sc->sc_bulkin_xfer = usbd_alloc_xfer(sc->sc_udev);
 418         if (sc->sc_bulkin_xfer == NULL) {
 419                 uscanner_do_close(sc);
 420                 return (ENOMEM);
 421         }
 422         sc->sc_bulkout_xfer = usbd_alloc_xfer(sc->sc_udev);
 423         if (sc->sc_bulkout_xfer == NULL) {
 424                 uscanner_do_close(sc);
 425                 return (ENOMEM);
 426         }
 427
 428         return (0);     /* success */
 429 }
 430
 431 int
 432 uscannerclose(struct dev_close_args *ap)
 433 {
 434         cdev_t dev = ap->a_head.a_dev;
 435         struct uscanner_softc *sc;
 436
 437         sc = devclass_get_softc(uscanner_devclass, USCANNERUNIT(dev));
 438
 439         DPRINTFN(5, ("uscannerclose: flag=%d, mode=%d, unit=%d\n",
 440                      ap->a_fflag, ap->a_devtype, USCANNERUNIT(dev)));
 441
 442 #ifdef DIAGNOSTIC
 443         if (!(sc->sc_state & USCANNER_OPEN)) {
 444                 kprintf("uscannerclose: not open\n");
 445                 return (EINVAL);
 446         }
 447 #endif
 448
 449         uscanner_do_close(sc);
 450
 451         return (0);
 452 }
 453
 454 void
 455 uscanner_do_close(struct uscanner_softc *sc)
 456 {
 457         if (sc->sc_bulkin_xfer) {
 458                 usbd_free_xfer(sc->sc_bulkin_xfer);
 459                 sc->sc_bulkin_xfer = NULL;
 460         }
 461         if (sc->sc_bulkout_xfer) {
 462                 usbd_free_xfer(sc->sc_bulkout_xfer);
 463                 sc->sc_bulkout_xfer = NULL;
 464         }
 465
 466         if (!(sc->sc_dev_flags & USC_KEEP_OPEN)) {
 467                 if (sc->sc_bulkin_pipe != NULL) {
 468                         usbd_abort_pipe(sc->sc_bulkin_pipe);
 469                         usbd_close_pipe(sc->sc_bulkin_pipe);
 470                         sc->sc_bulkin_pipe = NULL;
 471                 }
 472                 if (sc->sc_bulkout_pipe != NULL) {
 473                         usbd_abort_pipe(sc->sc_bulkout_pipe);
 474                         usbd_close_pipe(sc->sc_bulkout_pipe);
 475                         sc->sc_bulkout_pipe = NULL;
 476                 }
 477         }
 478
 479         if (sc->sc_bulkin_buffer) {
 480                 kfree(sc->sc_bulkin_buffer, M_USBDEV);
 481                 sc->sc_bulkin_buffer = NULL;
 482         }
 483         if (sc->sc_bulkout_buffer) {
 484                 kfree(sc->sc_bulkout_buffer, M_USBDEV);
 485                 sc->sc_bulkout_buffer = NULL;
 486         }
 487
 488         sc->sc_state &= ~USCANNER_OPEN;
 489 }
 490
 491 static int
 492 uscanner_do_read(struct uscanner_softc *sc, struct uio *uio, int flag)
 493 {
 494         u_int32_t n, tn;
 495         usbd_status err;
 496         int error = 0;
 497
 498         DPRINTFN(5, ("%s: uscannerread\n", device_get_nameunit(sc->sc_dev)));
 499
 500         if (sc->sc_dying)
 501                 return (EIO);
 502
 503         while ((n = min(sc->sc_bulkin_bufferlen, uio->uio_resid)) != 0) {
 504                 DPRINTFN(1, ("uscannerread: start transfer %d bytes\n",n));
 505                 tn = n;
 506
 507                 err = usbd_bulk_transfer(
 508                         sc->sc_bulkin_xfer, sc->sc_bulkin_pipe,
 509                         USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT,
 510                         sc->sc_bulkin_buffer, &tn,
 511                         "uscnrb");
 512                 if (err) {
 513                         if (err == USBD_INTERRUPTED)
 514                                 error = EINTR;
 515                         else if (err == USBD_TIMEOUT)
 516                                 error = ETIMEDOUT;
 517                         else
 518                                 error = EIO;
 519                         break;
 520                 }
 521                 DPRINTFN(1, ("uscannerread: got %d bytes\n", tn));
 522                 error = uiomove(sc->sc_bulkin_buffer, tn, uio);
 523                 if (error || tn < n)
 524                         break;
 525         }
 526
 527         return (error);
 528 }
 529
 530 int
 531 uscannerread(struct dev_read_args *ap)
 532 {
 533         cdev_t dev = ap->a_head.a_dev;
 534         struct uscanner_softc *sc;
 535         int error;
 536
 537         sc = devclass_get_softc(uscanner_devclass, USCANNERUNIT(dev));
 538
 539         sc->sc_refcnt++;
 540         error = uscanner_do_read(sc, ap->a_uio, ap->a_ioflag);
 541         if (--sc->sc_refcnt < 0)
 542                 usb_detach_wakeup(sc->sc_dev);
 543
 544         return (error);
 545 }
 546
 547 static int
 548 uscanner_do_write(struct uscanner_softc *sc, struct uio *uio, int flag)
 549 {
 550         u_int32_t n;
 551         int error = 0;
 552         usbd_status err;
 553
 554         DPRINTFN(5, ("%s: uscanner_do_write\n", device_get_nameunit(sc->sc_dev)));
 555
 556         if (sc->sc_dying)
 557                 return (EIO);
 558
 559         while ((n = min(sc->sc_bulkout_bufferlen, uio->uio_resid)) != 0) {
 560                 error = uiomove(sc->sc_bulkout_buffer, n, uio);
 561                 if (error)
 562                         break;
 563                 DPRINTFN(1, ("uscanner_do_write: transfer %d bytes\n", n));
 564                 err = usbd_bulk_transfer(
 565                         sc->sc_bulkout_xfer, sc->sc_bulkout_pipe,
 566                         0, USBD_NO_TIMEOUT,
 567                         sc->sc_bulkout_buffer, &n,
 568                         "uscnwb");
 569                 if (err) {
 570                         if (err == USBD_INTERRUPTED)
 571                                 error = EINTR;
 572                         else
 573                                 error = EIO;
 574                         break;
 575                 }
 576         }
 577
 578         return (error);
 579 }
 580
 581 int
 582 uscannerwrite(struct dev_write_args *ap)
 583 {
 584         cdev_t dev = ap->a_head.a_dev;
 585         struct uscanner_softc *sc;
 586         int error;
 587
 588         sc = devclass_get_softc(uscanner_devclass, USCANNERUNIT(dev));
 589
 590         sc->sc_refcnt++;
 591         error = uscanner_do_write(sc, ap->a_uio, ap->a_ioflag);
 592         if (--sc->sc_refcnt < 0)
 593                 usb_detach_wakeup(sc->sc_dev);
 594         return (error);
 595 }
 596
 597 static int
 598 uscanner_detach(device_t self)
 599 {
 600         struct uscanner_softc *sc = device_get_softc(self);
 601
 602         DPRINTF(("uscanner_detach: sc=%p\n", sc));
 603
 604         sc->sc_dying = 1;
 605         sc->sc_dev_flags = 0;   /* make close really close device */
 606
 607         /* Abort all pipes.  Causes processes waiting for transfer to wake. */
 608         if (sc->sc_bulkin_pipe != NULL)
 609                 usbd_abort_pipe(sc->sc_bulkin_pipe);
 610         if (sc->sc_bulkout_pipe != NULL)
 611                 usbd_abort_pipe(sc->sc_bulkout_pipe);
 612
 613         crit_enter();
 614         if (--sc->sc_refcnt >= 0) {
 615                 /* Wait for processes to go away. */
 616                 usb_detach_wait(sc->sc_dev);
 617         }
 618         crit_exit();
 619
 620         /* destroy the device for the control endpoint */
 621         dev_ops_remove(&uscanner_ops, -1, device_get_unit(sc->sc_dev));
 622
 623         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
 624                            sc->sc_dev);
 625
 626         return (0);
 627 }
 628
 629 int
 630 uscannerpoll(struct dev_poll_args *ap)
 631 {
 632         cdev_t dev = ap->a_head.a_dev;
 633         struct uscanner_softc *sc;
 634         int revents = 0;
 635
 636         sc = devclass_get_softc(uscanner_devclass, USCANNERUNIT(dev));
 637
 638         if (sc->sc_dying)
 639                 return (EIO);
 640
 641         /*
 642          * We have no easy way of determining if a read will
 643          * yield any data or a write will happen.
 644          * Pretend they will.
 645          */
 646         revents |= ap->a_events &
 647                    (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM);
 648
 649         ap->a_events = revents;
 650         return (0);
 651 }
 652
 653 DRIVER_MODULE(uscanner, uhub, uscanner_driver, uscanner_devclass, usbd_driver_load, 0);
 654