sys/dev/usbmisc/ulpt/ulpt.c

   1 /*
   2  * $NetBSD: ulpt.c,v 1.55 2002/10/23 09:14:01 jdolecek Exp $
   3  * $FreeBSD: src/sys/dev/usb/ulpt.c,v 1.59 2003/09/28 20:48:13 phk Exp $
   4  * $DragonFly: src/sys/dev/usbmisc/ulpt/ulpt.c,v 1.24 2007/11/06 07:37:01 hasso Exp $
   5  */
   6
   7 /*
   8  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   9  * All rights reserved.
  10  *
  11  * This code is derived from software contributed to The NetBSD Foundation
  12  * by Lennart Augustsson (lennart@augustsson.net) at
  13  * Carlstedt Research & Technology.
  14  *
  15  * Redistribution and use in source and binary forms, with or without
  16  * modification, are permitted provided that the following conditions
  17  * are met:
  18  * 1. Redistributions of source code must retain the above copyright
  19  *    notice, this list of conditions and the following disclaimer.
  20  * 2. Redistributions in binary form must reproduce the above copyright
  21  *    notice, this list of conditions and the following disclaimer in the
  22  *    documentation and/or other materials provided with the distribution.
  23  * 3. All advertising materials mentioning features or use of this software
  24  *    must display the following acknowledgement:
  25  *        This product includes software developed by the NetBSD
  26  *        Foundation, Inc. and its contributors.
  27  * 4. Neither the name of The NetBSD Foundation nor the names of its
  28  *    contributors may be used to endorse or promote products derived
  29  *    from this software without specific prior written permission.
  30  *
  31  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  32  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  33  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  34  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  35  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  36  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  37  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  38  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  39  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  40  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGE.
  42  */
  43
  44 /*
  45  * Printer Class spec: http://www.usb.org/developers/data/devclass/usbprint109.PDF
  46  */
  47
  48 #include <sys/param.h>
  49 #include <sys/systm.h>
  50 #include <sys/proc.h>
  51 #include <sys/kernel.h>
  52 #include <sys/ioccom.h>
  53 #include <sys/module.h>
  54 #include <sys/bus.h>
  55 #include <sys/uio.h>
  56 #include <sys/conf.h>
  57 #include <sys/device.h>
  58 #include <sys/syslog.h>
  59 #include <sys/sysctl.h>
  60 #include <sys/thread2.h>
  61
  62 #include <bus/usb/usb.h>
  63 #include <bus/usb/usbdi.h>
  64 #include <bus/usb/usbdi_util.h>
  65 #include <bus/usb/usb_quirks.h>
  66
  67 #define TIMEOUT         hz*16   /* wait up to 16 seconds for a ready */
  68 #define STEP            hz/4
  69
  70 #define ULPT_BSIZE      16384
  71
  72 #ifdef USB_DEBUG
  73 #define DPRINTF(x)      if (ulptdebug) kprintf x
  74 #define DPRINTFN(n,x)   if (ulptdebug>(n)) kprintf x
  75 int     ulptdebug = 0;
  76 SYSCTL_NODE(_hw_usb, OID_AUTO, ulpt, CTLFLAG_RW, 0, "USB ulpt");
  77 SYSCTL_INT(_hw_usb_ulpt, OID_AUTO, debug, CTLFLAG_RW,
  78            &ulptdebug, 0, "ulpt debug level");
  79 #else
  80 #define DPRINTF(x)
  81 #define DPRINTFN(n,x)
  82 #endif
  83
  84 #define UR_GET_DEVICE_ID 0
  85 #define UR_GET_PORT_STATUS 1
  86 #define UR_SOFT_RESET 2
  87
  88 #define LPS_NERR                0x08    /* printer no error */
  89 #define LPS_SELECT              0x10    /* printer selected */
  90 #define LPS_NOPAPER             0x20    /* printer out of paper */
  91 #define LPS_INVERT      (LPS_SELECT|LPS_NERR)
  92 #define LPS_MASK        (LPS_SELECT|LPS_NERR|LPS_NOPAPER)
  93
  94 struct ulpt_softc {
  95         device_t sc_dev;
  96         usbd_device_handle sc_udev;     /* device */
  97         usbd_interface_handle sc_iface; /* interface */
  98         int sc_ifaceno;
  99
 100         int sc_out;
 101         usbd_pipe_handle sc_out_pipe;   /* bulk out pipe */
 102
 103         int sc_in;
 104         usbd_pipe_handle sc_in_pipe;    /* bulk in pipe */
 105         usbd_xfer_handle sc_in_xfer1;
 106         usbd_xfer_handle sc_in_xfer2;
 107         u_char sc_junk[64];     /* somewhere to dump input */
 108
 109         u_char sc_state;
 110 #define ULPT_OPEN       0x01    /* device is open */
 111 #define ULPT_OBUSY      0x02    /* printer is busy doing output */
 112 #define ULPT_INIT       0x04    /* waiting to initialize for open */
 113         u_char sc_flags;
 114 #define ULPT_NOPRIME    0x40    /* don't prime on open */
 115         u_char sc_laststatus;
 116
 117         int sc_refcnt;
 118         u_char sc_dying;
 119 };
 120
 121 static d_open_t ulptopen;
 122 static d_close_t ulptclose;
 123 static d_write_t ulptwrite;
 124 static d_ioctl_t ulptioctl;
 125
 126 #define ULPT_CDEV_MAJOR 113
 127
 128 static struct dev_ops ulpt_ops = {
 129         { "ulpt", ULPT_CDEV_MAJOR, 0 },
 130         .d_open =       ulptopen,
 131         .d_close =      ulptclose,
 132         .d_write =      ulptwrite,
 133         .d_ioctl =      ulptioctl,
 134 };
 135
 136 void ulpt_disco(void *);
 137
 138 int ulpt_do_write(struct ulpt_softc *, struct uio *uio, int);
 139 int ulpt_status(struct ulpt_softc *);
 140 void ulpt_reset(struct ulpt_softc *);
 141 int ulpt_statusmsg(u_char, struct ulpt_softc *);
 142
 143 #if 0
 144 void ieee1284_print_id(char *);
 145 #endif
 146
 147 #define ULPTUNIT(s)     (minor(s) & 0x1f)
 148 #define ULPTFLAGS(s)    (minor(s) & 0xe0)
 149
 150
 151 static device_probe_t ulpt_match;
 152 static device_attach_t ulpt_attach;
 153 static device_detach_t ulpt_detach;
 154
 155 static devclass_t ulpt_devclass;
 156
 157 static kobj_method_t ulpt_methods[] = {
 158         DEVMETHOD(device_probe, ulpt_match),
 159         DEVMETHOD(device_attach, ulpt_attach),
 160         DEVMETHOD(device_detach, ulpt_detach),
 161         {0,0}
 162 };
 163
 164 static driver_t ulpt_driver = {
 165         "ulpt",
 166         ulpt_methods,
 167         sizeof(struct ulpt_softc)
 168 };
 169
 170 MODULE_DEPEND(ulpt, usb, 1, 1, 1);
 171
 172 static int
 173 ulpt_match(device_t self)
 174 {
 175         struct usb_attach_arg *uaa = device_get_ivars(self);
 176         usb_interface_descriptor_t *id;
 177
 178         DPRINTFN(10,("ulpt_match\n"));
 179         if (uaa->iface == NULL)
 180                 return (UMATCH_NONE);
 181         id = usbd_get_interface_descriptor(uaa->iface);
 182         if (id != NULL &&
 183             id->bInterfaceClass == UICLASS_PRINTER &&
 184             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 185             (id->bInterfaceProtocol == UIPROTO_PRINTER_UNI ||
 186              id->bInterfaceProtocol == UIPROTO_PRINTER_BI ||
 187              id->bInterfaceProtocol == UIPROTO_PRINTER_1284))
 188                 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
 189         return (UMATCH_NONE);
 190 }
 191
 192 static int
 193 ulpt_attach(device_t self)
 194 {
 195         struct ulpt_softc *sc = device_get_softc(self);
 196         struct usb_attach_arg *uaa = device_get_ivars(self);
 197         usbd_device_handle dev = uaa->device;
 198         usbd_interface_handle iface = uaa->iface;
 199         usb_interface_descriptor_t *ifcd = usbd_get_interface_descriptor(iface);
 200         usb_interface_descriptor_t *id, *iend;
 201         usb_config_descriptor_t *cdesc;
 202         usbd_status err;
 203         usb_endpoint_descriptor_t *ed;
 204         u_int8_t epcount;
 205         int i, altno;
 206
 207         DPRINTFN(10,("ulpt_attach: sc=%p\n", sc));
 208         sc->sc_dev = self;
 209
 210         /* XXX
 211          * Stepping through the alternate settings needs to be abstracted out.
 212          */
 213         cdesc = usbd_get_config_descriptor(dev);
 214         if (cdesc == NULL) {
 215                 kprintf("%s: failed to get configuration descriptor\n",
 216                        device_get_nameunit(sc->sc_dev));
 217                 return ENXIO;
 218         }
 219         iend = (usb_interface_descriptor_t *)
 220                    ((char *)cdesc + UGETW(cdesc->wTotalLength));
 221 #ifdef DIAGNOSTIC
 222         if (ifcd < (usb_interface_descriptor_t *)cdesc ||
 223             ifcd >= iend)
 224                 panic("ulpt: iface desc out of range");
 225 #endif
 226         /* Step through all the descriptors looking for bidir mode */
 227         for (id = ifcd, altno = 0;
 228              id < iend;
 229              id = (void *)((char *)id + id->bLength)) {
 230                 if (id->bDescriptorType == UDESC_INTERFACE &&
 231                     id->bInterfaceNumber == ifcd->bInterfaceNumber) {
 232                         if (id->bInterfaceClass == UICLASS_PRINTER &&
 233                             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 234                             (id->bInterfaceProtocol == UIPROTO_PRINTER_BI /* ||
 235                              id->bInterfaceProtocol == UIPROTO_PRINTER_1284 */))
 236                                 goto found;
 237                         altno++;
 238                 }
 239         }
 240         id = ifcd;              /* not found, use original */
 241  found:
 242         if (id != ifcd) {
 243                 /* Found a new bidir setting */
 244                 DPRINTF(("ulpt_attach: set altno = %d\n", altno));
 245                 err = usbd_set_interface(iface, altno);
 246                 if (err) {
 247                         kprintf("%s: setting alternate interface failed\n",
 248                                device_get_nameunit(sc->sc_dev));
 249                         sc->sc_dying = 1;
 250                         return ENXIO;
 251                 }
 252         }
 253
 254         epcount = 0;
 255         (void)usbd_endpoint_count(iface, &epcount);
 256
 257         sc->sc_in = -1;
 258         sc->sc_out = -1;
 259         for (i = 0; i < epcount; i++) {
 260                 ed = usbd_interface2endpoint_descriptor(iface, i);
 261                 if (ed == NULL) {
 262                         kprintf("%s: couldn't get ep %d\n",
 263                             device_get_nameunit(sc->sc_dev), i);
 264                         return ENXIO;
 265                 }
 266                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
 267                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 268                         sc->sc_in = ed->bEndpointAddress;
 269                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
 270                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 271                         sc->sc_out = ed->bEndpointAddress;
 272                 }
 273         }
 274         if (sc->sc_out == -1) {
 275                 kprintf("%s: could not find bulk out endpoint\n",
 276                     device_get_nameunit(sc->sc_dev));
 277                 sc->sc_dying = 1;
 278                 return ENXIO;
 279         }
 280
 281         if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) {
 282                 /* This device doesn't handle reading properly. */
 283                 sc->sc_in = -1;
 284         }
 285
 286         kprintf("%s: using %s-directional mode\n", device_get_nameunit(sc->sc_dev),
 287                sc->sc_in >= 0 ? "bi" : "uni");
 288
 289         DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out));
 290
 291         sc->sc_iface = iface;
 292         sc->sc_ifaceno = id->bInterfaceNumber;
 293         sc->sc_udev = dev;
 294
 295         dev_ops_add(&ulpt_ops, -1, device_get_unit(self));
 296         make_dev(&ulpt_ops, device_get_unit(self),
 297                 UID_ROOT, GID_OPERATOR, 0644, "ulpt%d", device_get_unit(self));
 298         make_dev(&ulpt_ops,
 299                 device_get_unit(self)|ULPT_NOPRIME,
 300                 UID_ROOT, GID_OPERATOR, 0644, "unlpt%d", device_get_unit(self));
 301
 302         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
 303                            sc->sc_dev);
 304
 305         return 0;
 306 }
 307
 308 static int
 309 ulpt_detach(device_t self)
 310 {
 311         struct ulpt_softc *sc = device_get_softc(self);
 312
 313         DPRINTF(("ulpt_detach: sc=%p\n", sc));
 314
 315         sc->sc_dying = 1;
 316         if (sc->sc_out_pipe != NULL)
 317                 usbd_abort_pipe(sc->sc_out_pipe);
 318         if (sc->sc_in_pipe != NULL)
 319                 usbd_abort_pipe(sc->sc_in_pipe);
 320
 321         /*
 322          * Wait for any ongoing operations to complete before we actually
 323          * close things down.
 324          */
 325
 326         crit_enter();
 327         --sc->sc_refcnt;
 328         if (sc->sc_refcnt >= 0) {
 329                 kprintf("%s: waiting for idle\n", device_get_nameunit(sc->sc_dev));
 330                 while (sc->sc_refcnt >= 0)
 331                         usb_detach_wait(sc->sc_dev);
 332                 kprintf("%s: idle wait done\n", device_get_nameunit(sc->sc_dev));
 333         }
 334         crit_exit();
 335
 336         dev_ops_remove(&ulpt_ops, -1, device_get_unit(self));
 337
 338         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
 339                            sc->sc_dev);
 340
 341         return (0);
 342 }
 343
 344 int
 345 ulpt_status(struct ulpt_softc *sc)
 346 {
 347         usb_device_request_t req;
 348         usbd_status err;
 349         u_char status;
 350
 351         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 352         req.bRequest = UR_GET_PORT_STATUS;
 353         USETW(req.wValue, 0);
 354         USETW(req.wIndex, sc->sc_ifaceno);
 355         USETW(req.wLength, 1);
 356         err = usbd_do_request(sc->sc_udev, &req, &status);
 357         DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err));
 358         if (!err)
 359                 return (status);
 360         else
 361                 return (0);
 362 }
 363
 364 void
 365 ulpt_reset(struct ulpt_softc *sc)
 366 {
 367         usb_device_request_t req;
 368
 369         DPRINTFN(1, ("ulpt_reset\n"));
 370         req.bRequest = UR_SOFT_RESET;
 371         USETW(req.wValue, 0);
 372         USETW(req.wIndex, sc->sc_ifaceno);
 373         USETW(req.wLength, 0);
 374
 375         /*
 376          * There was a mistake in the USB printer 1.0 spec that gave the
 377          * request type as UT_WRITE_CLASS_OTHER; it should have been
 378          * UT_WRITE_CLASS_INTERFACE.  Many printers use the old one,
 379          * so we try both.
 380          */
 381         req.bmRequestType = UT_WRITE_CLASS_OTHER;
 382         if (usbd_do_request(sc->sc_udev, &req, 0)) {    /* 1.0 */
 383                 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 384                 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */
 385         }
 386 }
 387
 388 static void
 389 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 390 {
 391         struct ulpt_softc *sc = priv;
 392         u_int32_t count;
 393
 394         /* Don't loop on errors or 0-length input. */
 395         usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
 396         if (status != USBD_NORMAL_COMPLETION || count == 0)
 397                 return;
 398
 399         DPRINTFN(2,("ulpt_input: got some data\n"));
 400         /* Do it again. */
 401         if (xfer == sc->sc_in_xfer1)
 402                 usbd_transfer(sc->sc_in_xfer2);
 403         else
 404                 usbd_transfer(sc->sc_in_xfer1);
 405 }
 406
 407 int ulptusein = 1;
 408
 409 /*
 410  * Reset the printer, then wait until it's selected and not busy.
 411  */
 412 int
 413 ulptopen(struct dev_open_args *ap)
 414 {
 415         cdev_t dev = ap->a_head.a_dev;
 416         u_char flags = ULPTFLAGS(dev);
 417         struct ulpt_softc *sc;
 418         usbd_status err;
 419         int spin, error;
 420
 421         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 422         if (sc == NULL)
 423                 return (ENXIO);
 424
 425         if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying)
 426                 return (ENXIO);
 427
 428         if (sc->sc_state)
 429                 return (EBUSY);
 430
 431         sc->sc_state = ULPT_INIT;
 432         sc->sc_flags = flags;
 433         DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags));
 434
 435 #if defined(USB_DEBUG)
 436         /* Ignoring these flags might not be a good idea */
 437         if ((flags & ~ULPT_NOPRIME) != 0)
 438                 kprintf("ulptopen: flags ignored: %b\n", flags,
 439                         "\20\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS");
 440 #endif
 441
 442         error = 0;
 443         sc->sc_refcnt++;
 444
 445         if ((flags & ULPT_NOPRIME) == 0) {
 446                 ulpt_reset(sc);
 447                 if (sc->sc_dying) {
 448                         error = ENXIO;
 449                         sc->sc_state = 0;
 450                         goto done;
 451                 }
 452         }
 453
 454         for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) {
 455                 DPRINTF(("ulpt_open: waiting a while\n"));
 456                 if (spin >= TIMEOUT) {
 457                         error = EBUSY;
 458                         sc->sc_state = 0;
 459                         goto done;
 460                 }
 461
 462                 /* wait 1/4 second, give up if we get a signal */
 463                 error = tsleep((caddr_t)sc, PCATCH, "ulptop", STEP);
 464                 if (error != EWOULDBLOCK) {
 465                         sc->sc_state = 0;
 466                         goto done;
 467                 }
 468
 469                 if (sc->sc_dying) {
 470                         error = ENXIO;
 471                         sc->sc_state = 0;
 472                         goto done;
 473                 }
 474         }
 475
 476         err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe);
 477         if (err) {
 478                 sc->sc_state = 0;
 479                 error = EIO;
 480                 goto done;
 481         }
 482
 483         if (ulptusein && sc->sc_in != -1) {
 484                 DPRINTF(("ulpt_open: open input pipe\n"));
 485                 err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe);
 486                 if (err) {
 487                         error = EIO;
 488                         usbd_close_pipe(sc->sc_out_pipe);
 489                         sc->sc_out_pipe = NULL;
 490                         sc->sc_state = 0;
 491                         goto done;
 492                 }
 493                 sc->sc_in_xfer1 = usbd_alloc_xfer(sc->sc_udev);
 494                 sc->sc_in_xfer2 = usbd_alloc_xfer(sc->sc_udev);
 495                 if (sc->sc_in_xfer1 == NULL || sc->sc_in_xfer2 == NULL) {
 496                         error = ENOMEM;
 497                         if (sc->sc_in_xfer1 != NULL) {
 498                                 usbd_free_xfer(sc->sc_in_xfer1);
 499                                 sc->sc_in_xfer1 = NULL;
 500                         }
 501                         if (sc->sc_in_xfer2 != NULL) {
 502                                 usbd_free_xfer(sc->sc_in_xfer2);
 503                                 sc->sc_in_xfer2 = NULL;
 504                         }
 505                         usbd_close_pipe(sc->sc_out_pipe);
 506                         sc->sc_out_pipe = NULL;
 507                         usbd_close_pipe(sc->sc_in_pipe);
 508                         sc->sc_in_pipe = NULL;
 509                         sc->sc_state = 0;
 510                         goto done;
 511                 }
 512                 usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc,
 513                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 514                     USBD_NO_TIMEOUT, ulpt_input);
 515                 usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc,
 516                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 517                     USBD_NO_TIMEOUT, ulpt_input);
 518                 usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */
 519         }
 520
 521         sc->sc_state = ULPT_OPEN;
 522
 523 done:
 524         if (--sc->sc_refcnt < 0)
 525                 usb_detach_wakeup(sc->sc_dev);
 526
 527         DPRINTF(("ulptopen: done, error=%d\n", error));
 528         return (error);
 529 }
 530
 531 int
 532 ulpt_statusmsg(u_char status, struct ulpt_softc *sc)
 533 {
 534         u_char new;
 535
 536         status = (status ^ LPS_INVERT) & LPS_MASK;
 537         new = status & ~sc->sc_laststatus;
 538         sc->sc_laststatus = status;
 539
 540         if (new & LPS_SELECT)
 541                 log(LOG_NOTICE, "%s: offline\n", device_get_nameunit(sc->sc_dev));
 542         else if (new & LPS_NOPAPER)
 543                 log(LOG_NOTICE, "%s: out of paper\n", device_get_nameunit(sc->sc_dev));
 544         else if (new & LPS_NERR)
 545                 log(LOG_NOTICE, "%s: output error\n", device_get_nameunit(sc->sc_dev));
 546
 547         return (status);
 548 }
 549
 550 int
 551 ulptclose(struct dev_close_args *ap)
 552 {
 553         cdev_t dev = ap->a_head.a_dev;
 554         struct ulpt_softc *sc;
 555
 556         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 557
 558         if (sc->sc_state != ULPT_OPEN)
 559                 /* We are being forced to close before the open completed. */
 560                 return (0);
 561
 562         if (sc->sc_out_pipe != NULL) {
 563                 usbd_close_pipe(sc->sc_out_pipe);
 564                 sc->sc_out_pipe = NULL;
 565         }
 566         if (sc->sc_in_pipe != NULL) {
 567                 usbd_abort_pipe(sc->sc_in_pipe);
 568                 usbd_close_pipe(sc->sc_in_pipe);
 569                 sc->sc_in_pipe = NULL;
 570                 if (sc->sc_in_xfer1 != NULL) {
 571                         usbd_free_xfer(sc->sc_in_xfer1);
 572                         sc->sc_in_xfer1 = NULL;
 573                 }
 574                 if (sc->sc_in_xfer2 != NULL) {
 575                         usbd_free_xfer(sc->sc_in_xfer2);
 576                         sc->sc_in_xfer2 = NULL;
 577                 }
 578         }
 579
 580         sc->sc_state = 0;
 581
 582         DPRINTF(("ulptclose: closed\n"));
 583         return (0);
 584 }
 585
 586 int
 587 ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags)
 588 {
 589         u_int32_t n;
 590         int error = 0;
 591         void *bufp;
 592         usbd_xfer_handle xfer;
 593         usbd_status err;
 594
 595         DPRINTF(("ulptwrite\n"));
 596         xfer = usbd_alloc_xfer(sc->sc_udev);
 597         if (xfer == NULL)
 598                 return (ENOMEM);
 599         bufp = usbd_alloc_buffer(xfer, ULPT_BSIZE);
 600         if (bufp == NULL) {
 601                 usbd_free_xfer(xfer);
 602                 return (ENOMEM);
 603         }
 604         while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) {
 605                 ulpt_statusmsg(ulpt_status(sc), sc);
 606                 error = uiomove(bufp, n, uio);
 607                 if (error)
 608                         break;
 609                 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n));
 610                 err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY,
 611                           USBD_NO_TIMEOUT, bufp, &n, "ulptwr");
 612                 if (err) {
 613                         DPRINTF(("ulptwrite: error=%d\n", err));
 614                         error = EIO;
 615                         break;
 616                 }
 617         }
 618         usbd_free_xfer(xfer);
 619
 620         return (error);
 621 }
 622
 623 int
 624 ulptwrite(struct dev_write_args *ap)
 625 {
 626         cdev_t dev = ap->a_head.a_dev;
 627         struct ulpt_softc *sc;
 628         int error;
 629
 630         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 631
 632         if (sc->sc_dying)
 633                 return (EIO);
 634
 635         sc->sc_refcnt++;
 636         error = ulpt_do_write(sc, ap->a_uio, ap->a_ioflag);
 637         if (--sc->sc_refcnt < 0)
 638                 usb_detach_wakeup(sc->sc_dev);
 639         return (error);
 640 }
 641
 642 int
 643 ulptioctl(struct dev_ioctl_args *ap)
 644 {
 645         int error = 0;
 646
 647         switch (ap->a_cmd) {
 648         default:
 649                 error = ENODEV;
 650         }
 651
 652         return (error);
 653 }
 654
 655 #if 0
 656 /* XXX This does not belong here. */
 657 /*
 658  * Print select parts of an IEEE 1284 device ID.
 659  */
 660 void
 661 ieee1284_print_id(char *str)
 662 {
 663         char *p, *q;
 664
 665         for (p = str-1; p; p = strchr(p, ';')) {
 666                 p++;            /* skip ';' */
 667                 if (strncmp(p, "MFG:", 4) == 0 ||
 668                     strncmp(p, "MANUFACTURER:", 14) == 0 ||
 669                     strncmp(p, "MDL:", 4) == 0 ||
 670                     strncmp(p, "MODEL:", 6) == 0) {
 671                         q = strchr(p, ';');
 672                         if (q)
 673                                 kprintf("%.*s", (int)(q - p + 1), p);
 674                 }
 675         }
 676 }
 677 #endif
 678
 679 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, 0);
 680