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 1.25 2008/02/11 16:56:53 dillon 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/module.h>
  53 #include <sys/bus.h>
  54 #include <sys/uio.h>
  55 #include <sys/conf.h>
  56 #include <sys/device.h>
  57 #include <sys/syslog.h>
  58 #include <sys/sysctl.h>
  59 #include <sys/thread2.h>
  60
  61 #include <bus/usb/usb.h>
  62 #include <bus/usb/usbdi.h>
  63 #include <bus/usb/usbdi_util.h>
  64 #include <bus/usb/usb_quirks.h>
  65
  66 #define TIMEOUT         hz*16   /* wait up to 16 seconds for a ready */
  67 #define STEP            hz/4
  68
  69 #define ULPT_BSIZE      16384
  70
  71 #ifdef USB_DEBUG
  72 #define DPRINTF(x)      if (ulptdebug) kprintf x
  73 #define DPRINTFN(n,x)   if (ulptdebug>(n)) kprintf x
  74 int     ulptdebug = 0;
  75 SYSCTL_NODE(_hw_usb, OID_AUTO, ulpt, CTLFLAG_RW, 0, "USB ulpt");
  76 SYSCTL_INT(_hw_usb_ulpt, OID_AUTO, debug, CTLFLAG_RW,
  77            &ulptdebug, 0, "ulpt debug level");
  78 #else
  79 #define DPRINTF(x)
  80 #define DPRINTFN(n,x)
  81 #endif
  82
  83 #define UR_GET_DEVICE_ID 0
  84 #define UR_GET_PORT_STATUS 1
  85 #define UR_SOFT_RESET 2
  86
  87 #define LPS_NERR                0x08    /* printer no error */
  88 #define LPS_SELECT              0x10    /* printer selected */
  89 #define LPS_NOPAPER             0x20    /* printer out of paper */
  90 #define LPS_INVERT      (LPS_SELECT|LPS_NERR)
  91 #define LPS_MASK        (LPS_SELECT|LPS_NERR|LPS_NOPAPER)
  92
  93 struct ulpt_softc {
  94         device_t sc_dev;
  95         usbd_device_handle sc_udev;     /* device */
  96         usbd_interface_handle sc_iface; /* interface */
  97         int sc_ifaceno;
  98
  99         int sc_out;
 100         usbd_pipe_handle sc_out_pipe;   /* bulk out pipe */
 101
 102         int sc_in;
 103         usbd_pipe_handle sc_in_pipe;    /* bulk in pipe */
 104         usbd_xfer_handle sc_in_xfer1;
 105         usbd_xfer_handle sc_in_xfer2;
 106         u_char sc_junk[64];     /* somewhere to dump input */
 107
 108         u_char sc_state;
 109 #define ULPT_OPEN       0x01    /* device is open */
 110 #define ULPT_OBUSY      0x02    /* printer is busy doing output */
 111 #define ULPT_INIT       0x04    /* waiting to initialize for open */
 112         u_char sc_flags;
 113 #define ULPT_NOPRIME    0x40    /* don't prime on open */
 114         u_char sc_laststatus;
 115
 116         int sc_refcnt;
 117         u_char sc_dying;
 118         int vendor;
 119         int product;
 120 };
 121
 122 static d_open_t ulptopen;
 123 static d_close_t ulptclose;
 124 static d_write_t ulptwrite;
 125 static d_ioctl_t ulptioctl;
 126
 127 #define ULPT_CDEV_MAJOR 113
 128
 129 static struct dev_ops ulpt_ops = {
 130         { "ulpt", ULPT_CDEV_MAJOR, 0 },
 131         .d_open =       ulptopen,
 132         .d_close =      ulptclose,
 133         .d_write =      ulptwrite,
 134         .d_ioctl =      ulptioctl,
 135 };
 136
 137 void ulpt_disco(void *);
 138
 139 int ulpt_do_write(struct ulpt_softc *, struct uio *uio, int);
 140 int ulpt_status(struct ulpt_softc *);
 141 void ulpt_reset(struct ulpt_softc *);
 142 int ulpt_statusmsg(u_char, struct ulpt_softc *);
 143
 144 #if 0
 145 void ieee1284_print_id(char *);
 146 #endif
 147
 148 #define ULPTUNIT(s)     (minor(s) & 0x1f)
 149 #define ULPTFLAGS(s)    (minor(s) & 0xe0)
 150
 151
 152 static device_probe_t ulpt_match;
 153 static device_attach_t ulpt_attach;
 154 static device_detach_t ulpt_detach;
 155
 156 static devclass_t ulpt_devclass;
 157
 158 static kobj_method_t ulpt_methods[] = {
 159         DEVMETHOD(device_probe, ulpt_match),
 160         DEVMETHOD(device_attach, ulpt_attach),
 161         DEVMETHOD(device_detach, ulpt_detach),
 162         {0,0}
 163 };
 164
 165 static driver_t ulpt_driver = {
 166         "ulpt",
 167         ulpt_methods,
 168         sizeof(struct ulpt_softc)
 169 };
 170
 171 MODULE_DEPEND(ulpt, usb, 1, 1, 1);
 172
 173 static int
 174 ulpt_match(device_t self)
 175 {
 176         struct usb_attach_arg *uaa = device_get_ivars(self);
 177         usb_interface_descriptor_t *id;
 178
 179         DPRINTFN(10,("ulpt_match\n"));
 180         if (uaa->iface == NULL)
 181                 return (UMATCH_NONE);
 182         id = usbd_get_interface_descriptor(uaa->iface);
 183         if (id != NULL &&
 184             id->bInterfaceClass == UICLASS_PRINTER &&
 185             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 186             (id->bInterfaceProtocol == UIPROTO_PRINTER_UNI ||
 187              id->bInterfaceProtocol == UIPROTO_PRINTER_BI ||
 188              id->bInterfaceProtocol == UIPROTO_PRINTER_1284))
 189                 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
 190         return (UMATCH_NONE);
 191 }
 192
 193 static int
 194 ulpt_attach(device_t self)
 195 {
 196         struct ulpt_softc *sc = device_get_softc(self);
 197         struct usb_attach_arg *uaa = device_get_ivars(self);
 198         usbd_device_handle dev = uaa->device;
 199         usbd_interface_handle iface = uaa->iface;
 200         usb_interface_descriptor_t *ifcd = usbd_get_interface_descriptor(iface);
 201         usb_interface_descriptor_t *id, *iend;
 202         usb_config_descriptor_t *cdesc;
 203         usbd_status err;
 204         usb_endpoint_descriptor_t *ed;
 205         u_int8_t epcount;
 206         int i, altno;
 207
 208         DPRINTFN(10,("ulpt_attach: sc=%p\n", sc));
 209         sc->sc_dev = self;
 210
 211         /* XXX
 212          * Stepping through the alternate settings needs to be abstracted out.
 213          */
 214         cdesc = usbd_get_config_descriptor(dev);
 215         if (cdesc == NULL) {
 216                 kprintf("%s: failed to get configuration descriptor\n",
 217                        device_get_nameunit(sc->sc_dev));
 218                 return ENXIO;
 219         }
 220         iend = (usb_interface_descriptor_t *)
 221                    ((char *)cdesc + UGETW(cdesc->wTotalLength));
 222 #ifdef DIAGNOSTIC
 223         if (ifcd < (usb_interface_descriptor_t *)cdesc ||
 224             ifcd >= iend)
 225                 panic("ulpt: iface desc out of range");
 226 #endif
 227         /* Step through all the descriptors looking for bidir mode */
 228         for (id = ifcd, altno = 0;
 229              id < iend;
 230              id = (void *)((char *)id + id->bLength)) {
 231                 if (id->bDescriptorType == UDESC_INTERFACE &&
 232                     id->bInterfaceNumber == ifcd->bInterfaceNumber) {
 233                         if (id->bInterfaceClass == UICLASS_PRINTER &&
 234                             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 235                             (id->bInterfaceProtocol == UIPROTO_PRINTER_BI /* ||
 236                              id->bInterfaceProtocol == UIPROTO_PRINTER_1284 */))
 237                                 goto found;
 238                         altno++;
 239                 }
 240         }
 241         id = ifcd;              /* not found, use original */
 242  found:
 243         if (id != ifcd) {
 244                 /* Found a new bidir setting */
 245                 DPRINTF(("ulpt_attach: set altno = %d\n", altno));
 246                 err = usbd_set_interface(iface, altno);
 247                 if (err) {
 248                         kprintf("%s: setting alternate interface failed\n",
 249                                device_get_nameunit(sc->sc_dev));
 250                         sc->sc_dying = 1;
 251                         return ENXIO;
 252                 }
 253         }
 254
 255         epcount = 0;
 256         (void)usbd_endpoint_count(iface, &epcount);
 257
 258         sc->sc_in = -1;
 259         sc->sc_out = -1;
 260         sc->vendor = uaa->vendor;
 261         sc->product = uaa->product;
 262         for (i = 0; i < epcount; i++) {
 263                 ed = usbd_interface2endpoint_descriptor(iface, i);
 264                 if (ed == NULL) {
 265                         kprintf("%s: couldn't get ep %d\n",
 266                             device_get_nameunit(sc->sc_dev), i);
 267                         return ENXIO;
 268                 }
 269                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
 270                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 271                         sc->sc_in = ed->bEndpointAddress;
 272                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
 273                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 274                         sc->sc_out = ed->bEndpointAddress;
 275                 }
 276         }
 277         if (sc->sc_out == -1) {
 278                 kprintf("%s: could not find bulk out endpoint\n",
 279                     device_get_nameunit(sc->sc_dev));
 280                 sc->sc_dying = 1;
 281                 return ENXIO;
 282         }
 283
 284         if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) {
 285                 /* This device doesn't handle reading properly. */
 286                 sc->sc_in = -1;
 287         }
 288
 289         kprintf("%s: using %s-directional mode\n", device_get_nameunit(sc->sc_dev),
 290                sc->sc_in >= 0 ? "bi" : "uni");
 291
 292         DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out));
 293
 294         sc->sc_iface = iface;
 295         sc->sc_ifaceno = id->bInterfaceNumber;
 296         sc->sc_udev = dev;
 297
 298         dev_ops_add(&ulpt_ops, -1, device_get_unit(self));
 299         make_dev(&ulpt_ops, device_get_unit(self),
 300                 UID_ROOT, GID_OPERATOR, 0644, "ulpt%d", device_get_unit(self));
 301         make_dev(&ulpt_ops,
 302                 device_get_unit(self)|ULPT_NOPRIME,
 303                 UID_ROOT, GID_OPERATOR, 0644, "unlpt%d", device_get_unit(self));
 304
 305         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
 306                            sc->sc_dev);
 307
 308         return 0;
 309 }
 310
 311 static int
 312 ulpt_detach(device_t self)
 313 {
 314         struct ulpt_softc *sc = device_get_softc(self);
 315
 316         DPRINTF(("ulpt_detach: sc=%p\n", sc));
 317
 318         sc->sc_dying = 1;
 319         if (sc->sc_out_pipe != NULL)
 320                 usbd_abort_pipe(sc->sc_out_pipe);
 321         if (sc->sc_in_pipe != NULL)
 322                 usbd_abort_pipe(sc->sc_in_pipe);
 323
 324         /*
 325          * Wait for any ongoing operations to complete before we actually
 326          * close things down.
 327          */
 328
 329         crit_enter();
 330         --sc->sc_refcnt;
 331         if (sc->sc_refcnt >= 0) {
 332                 kprintf("%s: waiting for idle\n", device_get_nameunit(sc->sc_dev));
 333                 while (sc->sc_refcnt >= 0)
 334                         usb_detach_wait(sc->sc_dev);
 335                 kprintf("%s: idle wait done\n", device_get_nameunit(sc->sc_dev));
 336         }
 337         crit_exit();
 338
 339         dev_ops_remove_minor(&ulpt_ops, /*-1, */device_get_unit(self));
 340
 341         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
 342                            sc->sc_dev);
 343
 344         return (0);
 345 }
 346
 347 int
 348 ulpt_status(struct ulpt_softc *sc)
 349 {
 350         usb_device_request_t req;
 351         usbd_status err;
 352         u_char status;
 353
 354         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 355         req.bRequest = UR_GET_PORT_STATUS;
 356         USETW(req.wValue, 0);
 357         USETW(req.wIndex, sc->sc_ifaceno);
 358         USETW(req.wLength, 1);
 359         err = usbd_do_request(sc->sc_udev, &req, &status);
 360         DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err));
 361         if (!err)
 362                 return (status);
 363         else
 364                 return (0);
 365 }
 366
 367 void
 368 ulpt_reset(struct ulpt_softc *sc)
 369 {
 370         usb_device_request_t req;
 371         int other_fails;
 372
 373         /* The Brother HL1240 doesn't handle UT_WRITE_CLASS_OTHER */
 374         other_fails = (sc->vendor == 0x04f9 && sc->product == 0x0006);
 375
 376         DPRINTFN(1, ("ulpt_reset\n"));
 377         req.bRequest = UR_SOFT_RESET;
 378         USETW(req.wValue, 0);
 379         USETW(req.wIndex, sc->sc_ifaceno);
 380         USETW(req.wLength, 0);
 381
 382         /*
 383          * There was a mistake in the USB printer 1.0 spec that gave the
 384          * request type as UT_WRITE_CLASS_OTHER; it should have been
 385          * UT_WRITE_CLASS_INTERFACE.  Many printers use the old one,
 386          * so we try both.
 387          */
 388         req.bmRequestType = UT_WRITE_CLASS_OTHER;
 389         /* Some printers don't handle UT_WRITE_CLASS_OTHER */
 390         if (other_fails || usbd_do_request(sc->sc_udev, &req, 0)) {/* 1.0 */
 391                 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 392                 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */
 393         }
 394 }
 395
 396 static void
 397 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 398 {
 399         struct ulpt_softc *sc = priv;
 400         u_int32_t count;
 401
 402         /* Don't loop on errors or 0-length input. */
 403         usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
 404         if (status != USBD_NORMAL_COMPLETION || count == 0)
 405                 return;
 406
 407         DPRINTFN(2,("ulpt_input: got some data\n"));
 408         /* Do it again. */
 409         if (xfer == sc->sc_in_xfer1)
 410                 usbd_transfer(sc->sc_in_xfer2);
 411         else
 412                 usbd_transfer(sc->sc_in_xfer1);
 413 }
 414
 415 int ulptusein = 1;
 416
 417 /*
 418  * Reset the printer, then wait until it's selected and not busy.
 419  */
 420 int
 421 ulptopen(struct dev_open_args *ap)
 422 {
 423         cdev_t dev = ap->a_head.a_dev;
 424         u_char flags = ULPTFLAGS(dev);
 425         struct ulpt_softc *sc;
 426         usbd_status err;
 427         int spin, error;
 428
 429         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 430         if (sc == NULL)
 431                 return (ENXIO);
 432
 433         if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying)
 434                 return (ENXIO);
 435
 436         if (sc->sc_state)
 437                 return (EBUSY);
 438
 439         sc->sc_state = ULPT_INIT;
 440         sc->sc_flags = flags;
 441         DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags));
 442
 443 #if defined(USB_DEBUG)
 444         /* Ignoring these flags might not be a good idea */
 445         if ((flags & ~ULPT_NOPRIME) != 0)
 446                 kprintf("ulptopen: flags ignored: %b\n", flags,
 447                         "\20\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS");
 448 #endif
 449
 450         error = 0;
 451         sc->sc_refcnt++;
 452
 453         if ((flags & ULPT_NOPRIME) == 0) {
 454                 ulpt_reset(sc);
 455                 if (sc->sc_dying) {
 456                         error = ENXIO;
 457                         sc->sc_state = 0;
 458                         goto done;
 459                 }
 460         }
 461
 462         for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) {
 463                 DPRINTF(("ulpt_open: waiting a while\n"));
 464                 if (spin >= TIMEOUT) {
 465                         error = EBUSY;
 466                         sc->sc_state = 0;
 467                         goto done;
 468                 }
 469
 470                 /* wait 1/4 second, give up if we get a signal */
 471                 error = tsleep((caddr_t)sc, PCATCH, "ulptop", STEP);
 472                 if (error != EWOULDBLOCK) {
 473                         sc->sc_state = 0;
 474                         goto done;
 475                 }
 476
 477                 if (sc->sc_dying) {
 478                         error = ENXIO;
 479                         sc->sc_state = 0;
 480                         goto done;
 481                 }
 482         }
 483
 484         err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe);
 485         if (err) {
 486                 sc->sc_state = 0;
 487                 error = EIO;
 488                 goto done;
 489         }
 490
 491         if (ulptusein && sc->sc_in != -1) {
 492                 DPRINTF(("ulpt_open: open input pipe\n"));
 493                 err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe);
 494                 if (err) {
 495                         error = EIO;
 496                         usbd_close_pipe(sc->sc_out_pipe);
 497                         sc->sc_out_pipe = NULL;
 498                         sc->sc_state = 0;
 499                         goto done;
 500                 }
 501                 sc->sc_in_xfer1 = usbd_alloc_xfer(sc->sc_udev);
 502                 sc->sc_in_xfer2 = usbd_alloc_xfer(sc->sc_udev);
 503                 if (sc->sc_in_xfer1 == NULL || sc->sc_in_xfer2 == NULL) {
 504                         error = ENOMEM;
 505                         if (sc->sc_in_xfer1 != NULL) {
 506                                 usbd_free_xfer(sc->sc_in_xfer1);
 507                                 sc->sc_in_xfer1 = NULL;
 508                         }
 509                         if (sc->sc_in_xfer2 != NULL) {
 510                                 usbd_free_xfer(sc->sc_in_xfer2);
 511                                 sc->sc_in_xfer2 = NULL;
 512                         }
 513                         usbd_close_pipe(sc->sc_out_pipe);
 514                         sc->sc_out_pipe = NULL;
 515                         usbd_close_pipe(sc->sc_in_pipe);
 516                         sc->sc_in_pipe = NULL;
 517                         sc->sc_state = 0;
 518                         goto done;
 519                 }
 520                 usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc,
 521                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 522                     USBD_NO_TIMEOUT, ulpt_input);
 523                 usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc,
 524                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 525                     USBD_NO_TIMEOUT, ulpt_input);
 526                 usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */
 527         }
 528
 529         sc->sc_state = ULPT_OPEN;
 530
 531 done:
 532         if (--sc->sc_refcnt < 0)
 533                 usb_detach_wakeup(sc->sc_dev);
 534
 535         DPRINTF(("ulptopen: done, error=%d\n", error));
 536         return (error);
 537 }
 538
 539 int
 540 ulpt_statusmsg(u_char status, struct ulpt_softc *sc)
 541 {
 542         u_char new;
 543
 544         status = (status ^ LPS_INVERT) & LPS_MASK;
 545         new = status & ~sc->sc_laststatus;
 546         sc->sc_laststatus = status;
 547
 548         if (new & LPS_SELECT)
 549                 log(LOG_NOTICE, "%s: offline\n", device_get_nameunit(sc->sc_dev));
 550         else if (new & LPS_NOPAPER)
 551                 log(LOG_NOTICE, "%s: out of paper\n", device_get_nameunit(sc->sc_dev));
 552         else if (new & LPS_NERR)
 553                 log(LOG_NOTICE, "%s: output error\n", device_get_nameunit(sc->sc_dev));
 554
 555         return (status);
 556 }
 557
 558 int
 559 ulptclose(struct dev_close_args *ap)
 560 {
 561         cdev_t dev = ap->a_head.a_dev;
 562         struct ulpt_softc *sc;
 563
 564         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 565
 566         if (sc->sc_state != ULPT_OPEN)
 567                 /* We are being forced to close before the open completed. */
 568                 return (0);
 569
 570         if (sc->sc_out_pipe != NULL) {
 571                 usbd_close_pipe(sc->sc_out_pipe);
 572                 sc->sc_out_pipe = NULL;
 573         }
 574         if (sc->sc_in_pipe != NULL) {
 575                 usbd_abort_pipe(sc->sc_in_pipe);
 576                 usbd_close_pipe(sc->sc_in_pipe);
 577                 sc->sc_in_pipe = NULL;
 578                 if (sc->sc_in_xfer1 != NULL) {
 579                         usbd_free_xfer(sc->sc_in_xfer1);
 580                         sc->sc_in_xfer1 = NULL;
 581                 }
 582                 if (sc->sc_in_xfer2 != NULL) {
 583                         usbd_free_xfer(sc->sc_in_xfer2);
 584                         sc->sc_in_xfer2 = NULL;
 585                 }
 586         }
 587
 588         sc->sc_state = 0;
 589
 590         DPRINTF(("ulptclose: closed\n"));
 591         return (0);
 592 }
 593
 594 int
 595 ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags)
 596 {
 597         u_int32_t n;
 598         int error = 0;
 599         void *bufp;
 600         usbd_xfer_handle xfer;
 601         usbd_status err;
 602
 603         DPRINTF(("ulptwrite\n"));
 604         xfer = usbd_alloc_xfer(sc->sc_udev);
 605         if (xfer == NULL)
 606                 return (ENOMEM);
 607         bufp = usbd_alloc_buffer(xfer, ULPT_BSIZE);
 608         if (bufp == NULL) {
 609                 usbd_free_xfer(xfer);
 610                 return (ENOMEM);
 611         }
 612         while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) {
 613                 ulpt_statusmsg(ulpt_status(sc), sc);
 614                 error = uiomove(bufp, n, uio);
 615                 if (error)
 616                         break;
 617                 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n));
 618                 err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY,
 619                           USBD_NO_TIMEOUT, bufp, &n, "ulptwr");
 620                 if (err) {
 621                         DPRINTF(("ulptwrite: error=%d\n", err));
 622                         error = EIO;
 623                         break;
 624                 }
 625         }
 626         usbd_free_xfer(xfer);
 627
 628         return (error);
 629 }
 630
 631 int
 632 ulptwrite(struct dev_write_args *ap)
 633 {
 634         cdev_t dev = ap->a_head.a_dev;
 635         struct ulpt_softc *sc;
 636         int error;
 637
 638         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 639
 640         if (sc->sc_dying)
 641                 return (EIO);
 642
 643         sc->sc_refcnt++;
 644         error = ulpt_do_write(sc, ap->a_uio, ap->a_ioflag);
 645         if (--sc->sc_refcnt < 0)
 646                 usb_detach_wakeup(sc->sc_dev);
 647         return (error);
 648 }
 649
 650 int
 651 ulptioctl(struct dev_ioctl_args *ap)
 652 {
 653         int error = 0;
 654
 655         switch (ap->a_cmd) {
 656         default:
 657                 error = ENODEV;
 658         }
 659
 660         return (error);
 661 }
 662
 663 #if 0
 664 /* XXX This does not belong here. */
 665 /*
 666  * Print select parts of an IEEE 1284 device ID.
 667  */
 668 void
 669 ieee1284_print_id(char *str)
 670 {
 671         char *p, *q;
 672
 673         for (p = str-1; p; p = strchr(p, ';')) {
 674                 p++;            /* skip ';' */
 675                 if (strncmp(p, "MFG:", 4) == 0 ||
 676                     strncmp(p, "MANUFACTURER:", 14) == 0 ||
 677                     strncmp(p, "MDL:", 4) == 0 ||
 678                     strncmp(p, "MODEL:", 6) == 0) {
 679                         q = strchr(p, ';');
 680                         if (q)
 681                                 kprintf("%.*s", (int)(q - p + 1), p);
 682                 }
 683         }
 684 }
 685 #endif
 686
 687 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, 0);
 688