sys/dev/usb/ulpt.c

   1 /*      $NetBSD: ulpt.c,v 1.51 2002/08/15 09:32:50 augustss Exp $       */
   2 /*      $FreeBSD$       */
   3
   4 /*
   5  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   6  * All rights reserved.
   7  *
   8  * This code is derived from software contributed to The NetBSD Foundation
   9  * by Lennart Augustsson (lennart@augustsson.net) at
  10  * Carlstedt Research & Technology.
  11  *
  12  * Redistribution and use in source and binary forms, with or without
  13  * modification, are permitted provided that the following conditions
  14  * are met:
  15  * 1. Redistributions of source code must retain the above copyright
  16  *    notice, this list of conditions and the following disclaimer.
  17  * 2. Redistributions in binary form must reproduce the above copyright
  18  *    notice, this list of conditions and the following disclaimer in the
  19  *    documentation and/or other materials provided with the distribution.
  20  * 3. All advertising materials mentioning features or use of this software
  21  *    must display the following acknowledgement:
  22  *        This product includes software developed by the NetBSD
  23  *        Foundation, Inc. and its contributors.
  24  * 4. Neither the name of The NetBSD Foundation nor the names of its
  25  *    contributors may be used to endorse or promote products derived
  26  *    from this software without specific prior written permission.
  27  *
  28  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  29  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  30  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  31  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  32  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  33  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  34  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  35  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  36  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  37  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  38  * POSSIBILITY OF SUCH DAMAGE.
  39  */
  40
  41 /*
  42  * Printer Class spec: http://www.usb.org/developers/data/devclass/usbprint109.PDF
  43  */
  44
  45 #include <sys/param.h>
  46 #include <sys/systm.h>
  47 #include <sys/proc.h>
  48 #include <sys/kernel.h>
  49 #if defined(__NetBSD__) || defined(__OpenBSD__)
  50 #include <sys/device.h>
  51 #include <sys/ioctl.h>
  52 #elif defined(__FreeBSD__)
  53 #include <sys/ioccom.h>
  54 #include <sys/module.h>
  55 #include <sys/bus.h>
  56 #endif
  57 #include <sys/uio.h>
  58 #include <sys/conf.h>
  59 #include <sys/vnode.h>
  60 #include <sys/syslog.h>
  61 #include <sys/sysctl.h>
  62
  63 #include <dev/usb/usb.h>
  64 #include <dev/usb/usbdi.h>
  65 #include <dev/usb/usbdi_util.h>
  66 #include <dev/usb/usbdevs.h>
  67 #include <dev/usb/usb_quirks.h>
  68
  69 #define TIMEOUT         hz*16   /* wait up to 16 seconds for a ready */
  70 #define STEP            hz/4
  71
  72 #define LPTPRI          (PZERO+8)
  73 #define ULPT_BSIZE      16384
  74
  75 #ifdef USB_DEBUG
  76 #define DPRINTF(x)      if (ulptdebug) logprintf x
  77 #define DPRINTFN(n,x)   if (ulptdebug>(n)) logprintf x
  78 int     ulptdebug = 0;
  79 SYSCTL_NODE(_hw_usb, OID_AUTO, ulpt, CTLFLAG_RW, 0, "USB ulpt");
  80 SYSCTL_INT(_hw_usb_ulpt, OID_AUTO, debug, CTLFLAG_RW,
  81            &ulptdebug, 0, "ulpt debug level");
  82 #else
  83 #define DPRINTF(x)
  84 #define DPRINTFN(n,x)
  85 #endif
  86
  87 #define UR_GET_DEVICE_ID 0
  88 #define UR_GET_PORT_STATUS 1
  89 #define UR_SOFT_RESET 2
  90
  91 #define LPS_NERR                0x08    /* printer no error */
  92 #define LPS_SELECT              0x10    /* printer selected */
  93 #define LPS_NOPAPER             0x20    /* printer out of paper */
  94 #define LPS_INVERT      (LPS_SELECT|LPS_NERR)
  95 #define LPS_MASK        (LPS_SELECT|LPS_NERR|LPS_NOPAPER)
  96
  97 struct ulpt_softc {
  98         USBBASEDEVICE sc_dev;
  99         usbd_device_handle sc_udev;     /* device */
 100         usbd_interface_handle sc_iface; /* interface */
 101         int sc_ifaceno;
 102
 103         int sc_out;
 104         usbd_pipe_handle sc_out_pipe;   /* bulk out pipe */
 105
 106         int sc_in;
 107         usbd_pipe_handle sc_in_pipe;    /* bulk in pipe */
 108         usbd_xfer_handle sc_in_xfer1;
 109         usbd_xfer_handle sc_in_xfer2;
 110         u_char sc_junk[64];     /* somewhere to dump input */
 111
 112         u_char sc_state;
 113 #define ULPT_OPEN       0x01    /* device is open */
 114 #define ULPT_OBUSY      0x02    /* printer is busy doing output */
 115 #define ULPT_INIT       0x04    /* waiting to initialize for open */
 116         u_char sc_flags;
 117 #define ULPT_NOPRIME    0x40    /* don't prime on open */
 118         u_char sc_laststatus;
 119
 120         int sc_refcnt;
 121         u_char sc_dying;
 122
 123 #if defined(__FreeBSD__)
 124         dev_t dev;
 125         dev_t dev_noprime;
 126 #endif
 127 };
 128
 129 #if defined(__NetBSD__) || defined(__OpenBSD__)
 130 cdev_decl(ulpt);
 131 #elif defined(__FreeBSD__)
 132 Static d_open_t ulptopen;
 133 Static d_close_t ulptclose;
 134 Static d_write_t ulptwrite;
 135 Static d_ioctl_t ulptioctl;
 136
 137 #define ULPT_CDEV_MAJOR 113
 138
 139 Static struct cdevsw ulpt_cdevsw = {
 140         /* open */      ulptopen,
 141         /* close */     ulptclose,
 142         /* read */      noread,
 143         /* write */     ulptwrite,
 144         /* ioctl */     ulptioctl,
 145         /* poll */      nopoll,
 146         /* mmap */      nommap,
 147         /* strategy */  nostrategy,
 148         /* name */      "ulpt",
 149         /* maj */       ULPT_CDEV_MAJOR,
 150         /* dump */      nodump,
 151         /* psize */     nopsize,
 152         /* flags */     0,
 153 #if __FreeBSD_version < 500014
 154         /* bmaj */      -1
 155 #endif
 156 };
 157 #endif
 158
 159 void ulpt_disco(void *);
 160
 161 int ulpt_do_write(struct ulpt_softc *, struct uio *uio, int);
 162 int ulpt_status(struct ulpt_softc *);
 163 void ulpt_reset(struct ulpt_softc *);
 164 int ulpt_statusmsg(u_char, struct ulpt_softc *);
 165
 166 #if 0
 167 void ieee1284_print_id(char *);
 168 #endif
 169
 170 #define ULPTUNIT(s)     (minor(s) & 0x1f)
 171 #define ULPTFLAGS(s)    (minor(s) & 0xe0)
 172
 173
 174 USB_DECLARE_DRIVER(ulpt);
 175
 176 USB_MATCH(ulpt)
 177 {
 178         USB_MATCH_START(ulpt, uaa);
 179         usb_interface_descriptor_t *id;
 180
 181         DPRINTFN(10,("ulpt_match\n"));
 182         if (uaa->iface == NULL)
 183                 return (UMATCH_NONE);
 184         id = usbd_get_interface_descriptor(uaa->iface);
 185         if (id != NULL &&
 186             id->bInterfaceClass == UICLASS_PRINTER &&
 187             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 188             (id->bInterfaceProtocol == UIPROTO_PRINTER_UNI ||
 189              id->bInterfaceProtocol == UIPROTO_PRINTER_BI ||
 190              id->bInterfaceProtocol == UIPROTO_PRINTER_1284))
 191                 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
 192         return (UMATCH_NONE);
 193 }
 194
 195 USB_ATTACH(ulpt)
 196 {
 197         USB_ATTACH_START(ulpt, sc, uaa);
 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         char devinfo[1024];
 205         usb_endpoint_descriptor_t *ed;
 206         u_int8_t epcount;
 207         int i, altno;
 208
 209         DPRINTFN(10,("ulpt_attach: sc=%p\n", sc));
 210         usbd_devinfo(dev, 0, devinfo);
 211         USB_ATTACH_SETUP;
 212         printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev),
 213                devinfo, ifcd->bInterfaceClass, ifcd->bInterfaceSubClass);
 214
 215         /* XXX
 216          * Stepping through the alternate settings needs to be abstracted out.
 217          */
 218         cdesc = usbd_get_config_descriptor(dev);
 219         if (cdesc == NULL) {
 220                 printf("%s: failed to get configuration descriptor\n",
 221                        USBDEVNAME(sc->sc_dev));
 222                 USB_ATTACH_ERROR_RETURN;
 223         }
 224         iend = (usb_interface_descriptor_t *)
 225                    ((char *)cdesc + UGETW(cdesc->wTotalLength));
 226 #ifdef DIAGNOSTIC
 227         if (ifcd < (usb_interface_descriptor_t *)cdesc ||
 228             ifcd >= iend)
 229                 panic("ulpt: iface desc out of range\n");
 230 #endif
 231         /* Step through all the descriptors looking for bidir mode */
 232         for (id = ifcd, altno = 0;
 233              id < iend;
 234              id = (void *)((char *)id + id->bLength)) {
 235                 if (id->bDescriptorType == UDESC_INTERFACE &&
 236                     id->bInterfaceNumber == ifcd->bInterfaceNumber) {
 237                         if (id->bInterfaceClass == UICLASS_PRINTER &&
 238                             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 239                             (id->bInterfaceProtocol == UIPROTO_PRINTER_BI ||
 240                              id->bInterfaceProtocol == UIPROTO_PRINTER_1284))
 241                                 goto found;
 242                         altno++;
 243                 }
 244         }
 245         id = ifcd;              /* not found, use original */
 246  found:
 247         if (id != ifcd) {
 248                 /* Found a new bidir setting */
 249                 DPRINTF(("ulpt_attach: set altno = %d\n", altno));
 250                 err = usbd_set_interface(iface, altno);
 251                 if (err) {
 252                         printf("%s: setting alternate interface failed\n",
 253                                USBDEVNAME(sc->sc_dev));
 254                         sc->sc_dying = 1;
 255                         USB_ATTACH_ERROR_RETURN;
 256                 }
 257         }
 258
 259         epcount = 0;
 260         (void)usbd_endpoint_count(iface, &epcount);
 261
 262         sc->sc_in = -1;
 263         sc->sc_out = -1;
 264         for (i = 0; i < epcount; i++) {
 265                 ed = usbd_interface2endpoint_descriptor(iface, i);
 266                 if (ed == NULL) {
 267                         printf("%s: couldn't get ep %d\n",
 268                             USBDEVNAME(sc->sc_dev), i);
 269                         USB_ATTACH_ERROR_RETURN;
 270                 }
 271                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
 272                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 273                         sc->sc_in = ed->bEndpointAddress;
 274                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
 275                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 276                         sc->sc_out = ed->bEndpointAddress;
 277                 }
 278         }
 279         if (sc->sc_out == -1) {
 280                 printf("%s: could not find bulk out endpoint\n",
 281                     USBDEVNAME(sc->sc_dev));
 282                 sc->sc_dying = 1;
 283                 USB_ATTACH_ERROR_RETURN;
 284         }
 285
 286         if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) {
 287                 /* This device doesn't handle reading properly. */
 288                 sc->sc_in = -1;
 289         }
 290
 291         printf("%s: using %s-directional mode\n", USBDEVNAME(sc->sc_dev),
 292                sc->sc_in >= 0 ? "bi" : "uni");
 293
 294         DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out));
 295
 296         sc->sc_iface = iface;
 297         sc->sc_ifaceno = id->bInterfaceNumber;
 298         sc->sc_udev = dev;
 299
 300 #if 0
 301 /*
 302  * This code is disabled because for some mysterious reason it causes
 303  * printing not to work.  But only sometimes, and mostly with
 304  * UHCI and less often with OHCI.  *sigh*
 305  */
 306         {
 307         usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev);
 308         usb_device_request_t req;
 309         int len, alen;
 310
 311         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 312         req.bRequest = UR_GET_DEVICE_ID;
 313         USETW(req.wValue, cd->bConfigurationValue);
 314         USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting);
 315         USETW(req.wLength, sizeof devinfo - 1);
 316         err = usbd_do_request_flags(dev, &req, devinfo, USBD_SHORT_XFER_OK,
 317                   &alen, USBD_DEFAULT_TIMEOUT);
 318         if (err) {
 319                 printf("%s: cannot get device id\n", USBDEVNAME(sc->sc_dev));
 320         } else if (alen <= 2) {
 321                 printf("%s: empty device id, no printer connected?\n",
 322                        USBDEVNAME(sc->sc_dev));
 323         } else {
 324                 /* devinfo now contains an IEEE-1284 device ID */
 325                 len = ((devinfo[0] & 0xff) << 8) | (devinfo[1] & 0xff);
 326                 if (len > sizeof devinfo - 3)
 327                         len = sizeof devinfo - 3;
 328                 devinfo[len] = 0;
 329                 printf("%s: device id <", USBDEVNAME(sc->sc_dev));
 330                 ieee1284_print_id(devinfo+2);
 331                 printf(">\n");
 332         }
 333         }
 334 #endif
 335
 336 #if defined(__FreeBSD__)
 337         sc->dev = make_dev(&ulpt_cdevsw, device_get_unit(self),
 338                 UID_ROOT, GID_OPERATOR, 0644, "ulpt%d", device_get_unit(self));
 339         sc->dev_noprime = make_dev(&ulpt_cdevsw,
 340                 device_get_unit(self)|ULPT_NOPRIME,
 341                 UID_ROOT, GID_OPERATOR, 0644, "unlpt%d", device_get_unit(self));
 342 #endif
 343
 344         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
 345                            USBDEV(sc->sc_dev));
 346
 347         USB_ATTACH_SUCCESS_RETURN;
 348 }
 349
 350 #if defined(__NetBSD__) || defined(__OpenBSD__)
 351 int
 352 ulpt_activate(device_ptr_t self, enum devact act)
 353 {
 354         struct ulpt_softc *sc = (struct ulpt_softc *)self;
 355
 356         switch (act) {
 357         case DVACT_ACTIVATE:
 358                 return (EOPNOTSUPP);
 359                 break;
 360
 361         case DVACT_DEACTIVATE:
 362                 sc->sc_dying = 1;
 363                 break;
 364         }
 365         return (0);
 366 }
 367 #endif
 368
 369 USB_DETACH(ulpt)
 370 {
 371         USB_DETACH_START(ulpt, sc);
 372         int s;
 373 #if defined(__NetBSD__) || defined(__OpenBSD__)
 374         int maj, mn;
 375 #elif defined(__FreeBSD__)
 376         struct vnode *vp;
 377 #endif
 378
 379 #if defined(__NetBSD__) || defined(__OpenBSD__)
 380         DPRINTF(("ulpt_detach: sc=%p flags=%d\n", sc, flags));
 381 #elif defined(__FreeBSD__)
 382         DPRINTF(("ulpt_detach: sc=%p\n", sc));
 383 #endif
 384
 385         sc->sc_dying = 1;
 386         if (sc->sc_out_pipe != NULL)
 387                 usbd_abort_pipe(sc->sc_out_pipe);
 388         if (sc->sc_in_pipe != NULL)
 389                 usbd_abort_pipe(sc->sc_in_pipe);
 390
 391         s = splusb();
 392         if (--sc->sc_refcnt >= 0) {
 393                 /* There is noone to wake, aborting the pipe is enough */
 394                 /* Wait for processes to go away. */
 395                 usb_detach_wait(USBDEV(sc->sc_dev));
 396         }
 397         splx(s);
 398
 399 #if defined(__NetBSD__) || defined(__OpenBSD__)
 400         /* locate the major number */
 401         for (maj = 0; maj < nchrdev; maj++)
 402                 if (cdevsw[maj].d_open == ulptopen)
 403                         break;
 404
 405         /* Nuke the vnodes for any open instances (calls close). */
 406         mn = self->dv_unit;
 407         vdevgone(maj, mn, mn, VCHR);
 408 #elif defined(__FreeBSD__)
 409         vp = SLIST_FIRST(&sc->dev->si_hlist);
 410         if (vp)
 411                 VOP_REVOKE(vp, REVOKEALL);
 412         vp = SLIST_FIRST(&sc->dev_noprime->si_hlist);
 413         if (vp)
 414                 VOP_REVOKE(vp, REVOKEALL);
 415
 416         destroy_dev(sc->dev);
 417         destroy_dev(sc->dev_noprime);
 418 #endif
 419
 420         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
 421                            USBDEV(sc->sc_dev));
 422
 423         return (0);
 424 }
 425
 426 int
 427 ulpt_status(struct ulpt_softc *sc)
 428 {
 429         usb_device_request_t req;
 430         usbd_status err;
 431         u_char status;
 432
 433         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 434         req.bRequest = UR_GET_PORT_STATUS;
 435         USETW(req.wValue, 0);
 436         USETW(req.wIndex, sc->sc_ifaceno);
 437         USETW(req.wLength, 1);
 438         err = usbd_do_request(sc->sc_udev, &req, &status);
 439         DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err));
 440         if (!err)
 441                 return (status);
 442         else
 443                 return (0);
 444 }
 445
 446 void
 447 ulpt_reset(struct ulpt_softc *sc)
 448 {
 449         usb_device_request_t req;
 450
 451         DPRINTFN(1, ("ulpt_reset\n"));
 452         req.bRequest = UR_SOFT_RESET;
 453         USETW(req.wValue, 0);
 454         USETW(req.wIndex, sc->sc_ifaceno);
 455         USETW(req.wLength, 0);
 456
 457         /*
 458          * There was a mistake in the USB printer 1.0 spec that gave the
 459          * request type as UT_WRITE_CLASS_OTHER; it should have been
 460          * UT_WRITE_CLASS_INTERFACE.  Many printers use the old one,
 461          * so we try both.
 462          */
 463         req.bmRequestType = UT_WRITE_CLASS_OTHER;
 464         if (usbd_do_request(sc->sc_udev, &req, 0)) {    /* 1.0 */
 465                 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 466                 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */
 467         }
 468 }
 469
 470 static void
 471 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 472 {
 473         struct ulpt_softc *sc = priv;
 474
 475         DPRINTFN(2,("ulpt_input: got some data\n"));
 476         /* Do it again. */
 477         if (xfer == sc->sc_in_xfer1)
 478                 usbd_transfer(sc->sc_in_xfer2);
 479         else
 480                 usbd_transfer(sc->sc_in_xfer1);
 481 }
 482
 483 int ulptusein = 1;
 484
 485 /*
 486  * Reset the printer, then wait until it's selected and not busy.
 487  */
 488 int
 489 ulptopen(dev_t dev, int flag, int mode, usb_proc_ptr p)
 490 {
 491         u_char flags = ULPTFLAGS(dev);
 492         struct ulpt_softc *sc;
 493         usbd_status err;
 494         int spin, error;
 495
 496         USB_GET_SC_OPEN(ulpt, ULPTUNIT(dev), sc);
 497
 498         if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying)
 499                 return (ENXIO);
 500
 501         if (sc->sc_state)
 502                 return (EBUSY);
 503
 504         sc->sc_state = ULPT_INIT;
 505         sc->sc_flags = flags;
 506         DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags));
 507
 508 #if defined(USB_DEBUG) && defined(__FreeBSD__)
 509         /* Ignoring these flags might not be a good idea */
 510         if ((flags & ~ULPT_NOPRIME) != 0)
 511                 printf("ulptopen: flags ignored: %b\n", flags,
 512                         "\20\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS");
 513 #endif
 514
 515
 516         error = 0;
 517         sc->sc_refcnt++;
 518
 519         if ((flags & ULPT_NOPRIME) == 0)
 520                 ulpt_reset(sc);
 521
 522         for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) {
 523                 DPRINTF(("ulpt_open: waiting a while\n"));
 524                 if (spin >= TIMEOUT) {
 525                         error = EBUSY;
 526                         sc->sc_state = 0;
 527                         goto done;
 528                 }
 529
 530                 /* wait 1/4 second, give up if we get a signal */
 531                 error = tsleep((caddr_t)sc, LPTPRI | PCATCH, "ulptop", STEP);
 532                 if (error != EWOULDBLOCK) {
 533                         sc->sc_state = 0;
 534                         goto done;
 535                 }
 536
 537                 if (sc->sc_dying) {
 538                         error = ENXIO;
 539                         sc->sc_state = 0;
 540                         goto done;
 541                 }
 542         }
 543
 544         err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe);
 545         if (err) {
 546                 sc->sc_state = 0;
 547                 error = EIO;
 548                 goto done;
 549         }
 550         if (ulptusein && sc->sc_in != -1) {
 551                 DPRINTF(("ulpt_open: open input pipe\n"));
 552                 err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe);
 553                 if (err) {
 554                         error = EIO;
 555                         usbd_close_pipe(sc->sc_out_pipe);
 556                         sc->sc_out_pipe = NULL;
 557                         sc->sc_state = 0;
 558                         goto done;
 559                 }
 560                 sc->sc_in_xfer1 = usbd_alloc_xfer(sc->sc_udev);
 561                 sc->sc_in_xfer2 = usbd_alloc_xfer(sc->sc_udev);
 562                 if (sc->sc_in_xfer1 == NULL || sc->sc_in_xfer2 == NULL) {
 563                         error = ENOMEM;
 564                         if (sc->sc_in_xfer1 != NULL) {
 565                                 usbd_free_xfer(sc->sc_in_xfer1);
 566                                 sc->sc_in_xfer1 = NULL;
 567                         }
 568                         if (sc->sc_in_xfer2 != NULL) {
 569                                 usbd_free_xfer(sc->sc_in_xfer2);
 570                                 sc->sc_in_xfer2 = NULL;
 571                         }
 572                         usbd_close_pipe(sc->sc_out_pipe);
 573                         sc->sc_out_pipe = NULL;
 574                         usbd_close_pipe(sc->sc_in_pipe);
 575                         sc->sc_in_pipe = NULL;
 576                         sc->sc_state = 0;
 577                         goto done;
 578                 }
 579                 usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc,
 580                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 581                     USBD_NO_TIMEOUT, ulpt_input);
 582                 usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc,
 583                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 584                     USBD_NO_TIMEOUT, ulpt_input);
 585                 usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */
 586         }
 587
 588         sc->sc_state = ULPT_OPEN;
 589
 590  done:
 591         if (--sc->sc_refcnt < 0)
 592                 usb_detach_wakeup(USBDEV(sc->sc_dev));
 593
 594         DPRINTF(("ulptopen: done, error=%d\n", error));
 595         return (error);
 596 }
 597
 598 int
 599 ulpt_statusmsg(u_char status, struct ulpt_softc *sc)
 600 {
 601         u_char new;
 602
 603         status = (status ^ LPS_INVERT) & LPS_MASK;
 604         new = status & ~sc->sc_laststatus;
 605         sc->sc_laststatus = status;
 606
 607         if (new & LPS_SELECT)
 608                 log(LOG_NOTICE, "%s: offline\n", USBDEVNAME(sc->sc_dev));
 609         else if (new & LPS_NOPAPER)
 610                 log(LOG_NOTICE, "%s: out of paper\n", USBDEVNAME(sc->sc_dev));
 611         else if (new & LPS_NERR)
 612                 log(LOG_NOTICE, "%s: output error\n", USBDEVNAME(sc->sc_dev));
 613
 614         return (status);
 615 }
 616
 617 int
 618 ulptclose(dev_t dev, int flag, int mode, usb_proc_ptr p)
 619 {
 620         struct ulpt_softc *sc;
 621
 622         USB_GET_SC(ulpt, ULPTUNIT(dev), sc);
 623
 624         if (sc->sc_state != ULPT_OPEN)
 625                 /* We are being forced to close before the open completed. */
 626                 return (0);
 627
 628         if (sc->sc_out_pipe != NULL) {
 629                 usbd_close_pipe(sc->sc_out_pipe);
 630                 sc->sc_out_pipe = NULL;
 631         }
 632         if (sc->sc_in_pipe != NULL) {
 633                 usbd_abort_pipe(sc->sc_in_pipe);
 634                 usbd_close_pipe(sc->sc_in_pipe);
 635                 sc->sc_in_pipe = NULL;
 636                 if (sc->sc_in_xfer1 != NULL) {
 637                         usbd_free_xfer(sc->sc_in_xfer1);
 638                         sc->sc_in_xfer1 = NULL;
 639                 }
 640                 if (sc->sc_in_xfer2 != NULL) {
 641                         usbd_free_xfer(sc->sc_in_xfer2);
 642                         sc->sc_in_xfer2 = NULL;
 643                 }
 644         }
 645
 646         sc->sc_state = 0;
 647
 648         DPRINTF(("ulptclose: closed\n"));
 649         return (0);
 650 }
 651
 652 int
 653 ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags)
 654 {
 655         u_int32_t n;
 656         int error = 0;
 657         void *bufp;
 658         usbd_xfer_handle xfer;
 659         usbd_status err;
 660
 661         DPRINTF(("ulptwrite\n"));
 662         xfer = usbd_alloc_xfer(sc->sc_udev);
 663         if (xfer == NULL)
 664                 return (ENOMEM);
 665         bufp = usbd_alloc_buffer(xfer, ULPT_BSIZE);
 666         if (bufp == NULL) {
 667                 usbd_free_xfer(xfer);
 668                 return (ENOMEM);
 669         }
 670         while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) {
 671                 ulpt_statusmsg(ulpt_status(sc), sc);
 672                 error = uiomove(bufp, n, uio);
 673                 if (error)
 674                         break;
 675                 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n));
 676                 err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY,
 677                           USBD_NO_TIMEOUT, bufp, &n, "ulptwr");
 678                 if (err) {
 679                         DPRINTF(("ulptwrite: error=%d\n", err));
 680                         error = EIO;
 681                         break;
 682                 }
 683         }
 684         usbd_free_xfer(xfer);
 685
 686         return (error);
 687 }
 688
 689 int
 690 ulptwrite(dev_t dev, struct uio *uio, int flags)
 691 {
 692         struct ulpt_softc *sc;
 693         int error;
 694
 695         USB_GET_SC(ulpt, ULPTUNIT(dev), sc);
 696
 697         if (sc->sc_dying)
 698                 return (EIO);
 699
 700         sc->sc_refcnt++;
 701         error = ulpt_do_write(sc, uio, flags);
 702         if (--sc->sc_refcnt < 0)
 703                 usb_detach_wakeup(USBDEV(sc->sc_dev));
 704         return (error);
 705 }
 706
 707 int
 708 ulptioctl(dev_t dev, u_long cmd, caddr_t data, int flag, usb_proc_ptr p)
 709 {
 710         int error = 0;
 711
 712         switch (cmd) {
 713         default:
 714                 error = ENODEV;
 715         }
 716
 717         return (error);
 718 }
 719
 720 #if 0
 721 /* XXX This does not belong here. */
 722 /*
 723  * Print select parts of a IEEE 1284 device ID.
 724  */
 725 void
 726 ieee1284_print_id(char *str)
 727 {
 728         char *p, *q;
 729
 730         for (p = str-1; p; p = strchr(p, ';')) {
 731                 p++;            /* skip ';' */
 732                 if (strncmp(p, "MFG:", 4) == 0 ||
 733                     strncmp(p, "MANUFACTURER:", 14) == 0 ||
 734                     strncmp(p, "MDL:", 4) == 0 ||
 735                     strncmp(p, "MODEL:", 6) == 0) {
 736                         q = strchr(p, ';');
 737                         if (q)
 738                                 printf("%.*s", (int)(q - p + 1), p);
 739                 }
 740         }
 741 }
 742 #endif
 743
 744 #if defined(__FreeBSD__)
 745 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, 0);
 746 #endif