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 1.11 2004/12/24 04:52:19 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 #if defined(__NetBSD__) || defined(__OpenBSD__)
  53 #include <sys/device.h>
  54 #include <sys/ioctl.h>
  55 #elif defined(__FreeBSD__) || defined(__DragonFly__)
  56 #include <sys/ioccom.h>
  57 #include <sys/module.h>
  58 #include <sys/bus.h>
  59 #endif
  60 #include <sys/uio.h>
  61 #include <sys/conf.h>
  62 #include <sys/syslog.h>
  63 #include <sys/sysctl.h>
  64
  65 #include <bus/usb/usb.h>
  66 #include <bus/usb/usbdi.h>
  67 #include <bus/usb/usbdi_util.h>
  68 #include <bus/usb/usbdevs.h>
  69 #include <bus/usb/usb_quirks.h>
  70
  71 #define TIMEOUT         hz*16   /* wait up to 16 seconds for a ready */
  72 #define STEP            hz/4
  73
  74 #define ULPT_BSIZE      16384
  75
  76 #ifdef USB_DEBUG
  77 #define DPRINTF(x)      if (ulptdebug) logprintf x
  78 #define DPRINTFN(n,x)   if (ulptdebug>(n)) logprintf x
  79 int     ulptdebug = 0;
  80 SYSCTL_NODE(_hw_usb, OID_AUTO, ulpt, CTLFLAG_RW, 0, "USB ulpt");
  81 SYSCTL_INT(_hw_usb_ulpt, OID_AUTO, debug, CTLFLAG_RW,
  82            &ulptdebug, 0, "ulpt debug level");
  83 #else
  84 #define DPRINTF(x)
  85 #define DPRINTFN(n,x)
  86 #endif
  87
  88 #define UR_GET_DEVICE_ID 0
  89 #define UR_GET_PORT_STATUS 1
  90 #define UR_SOFT_RESET 2
  91
  92 #define LPS_NERR                0x08    /* printer no error */
  93 #define LPS_SELECT              0x10    /* printer selected */
  94 #define LPS_NOPAPER             0x20    /* printer out of paper */
  95 #define LPS_INVERT      (LPS_SELECT|LPS_NERR)
  96 #define LPS_MASK        (LPS_SELECT|LPS_NERR|LPS_NOPAPER)
  97
  98 struct ulpt_softc {
  99         USBBASEDEVICE sc_dev;
 100         usbd_device_handle sc_udev;     /* device */
 101         usbd_interface_handle sc_iface; /* interface */
 102         int sc_ifaceno;
 103
 104         int sc_out;
 105         usbd_pipe_handle sc_out_pipe;   /* bulk out pipe */
 106
 107         int sc_in;
 108         usbd_pipe_handle sc_in_pipe;    /* bulk in pipe */
 109         usbd_xfer_handle sc_in_xfer1;
 110         usbd_xfer_handle sc_in_xfer2;
 111         u_char sc_junk[64];     /* somewhere to dump input */
 112
 113         u_char sc_state;
 114 #define ULPT_OPEN       0x01    /* device is open */
 115 #define ULPT_OBUSY      0x02    /* printer is busy doing output */
 116 #define ULPT_INIT       0x04    /* waiting to initialize for open */
 117         u_char sc_flags;
 118 #define ULPT_NOPRIME    0x40    /* don't prime on open */
 119         u_char sc_laststatus;
 120
 121         int sc_refcnt;
 122         u_char sc_dying;
 123 };
 124
 125 #if defined(__NetBSD__)
 126 dev_type_open(ulptopen);
 127 dev_type_close(ulptclose);
 128 dev_type_write(ulptwrite);
 129 dev_type_ioctl(ulptioctl);
 130
 131 const struct cdevsw ulpt_cdevsw = {
 132         ulptopen, ulptclose, noread, ulptwrite, ulptioctl,
 133         nostop, notty, nopoll, nommap, nokqfilter,
 134 };
 135 #elif defined(__OpenBSD__)
 136 cdev_decl(ulpt);
 137 #elif defined(__FreeBSD__) || defined(__DragonFly__)
 138 Static d_open_t ulptopen;
 139 Static d_close_t ulptclose;
 140 Static d_write_t ulptwrite;
 141 Static d_ioctl_t ulptioctl;
 142
 143 #define ULPT_CDEV_MAJOR 113
 144
 145 Static struct cdevsw ulpt_cdevsw = {
 146         /* name */      "ulpt",
 147         /* maj */       ULPT_CDEV_MAJOR,
 148         /* flags */     0,
 149         /* port */      NULL,
 150         /* clone */     NULL,
 151
 152         /* open */      ulptopen,
 153         /* close */     ulptclose,
 154         /* read */      noread,
 155         /* write */     ulptwrite,
 156         /* ioctl */     ulptioctl,
 157         /* poll */      nopoll,
 158         /* mmap */      nommap,
 159         /* strategy */  nostrategy,
 160         /* dump */      nodump,
 161         /* psize */     nopsize
 162 };
 163 #endif
 164
 165 void ulpt_disco(void *);
 166
 167 int ulpt_do_write(struct ulpt_softc *, struct uio *uio, int);
 168 int ulpt_status(struct ulpt_softc *);
 169 void ulpt_reset(struct ulpt_softc *);
 170 int ulpt_statusmsg(u_char, struct ulpt_softc *);
 171
 172 #if 0
 173 void ieee1284_print_id(char *);
 174 #endif
 175
 176 #define ULPTUNIT(s)     (minor(s) & 0x1f)
 177 #define ULPTFLAGS(s)    (minor(s) & 0xe0)
 178
 179
 180 USB_DECLARE_DRIVER(ulpt);
 181
 182 USB_MATCH(ulpt)
 183 {
 184         USB_MATCH_START(ulpt, uaa);
 185         usb_interface_descriptor_t *id;
 186
 187         DPRINTFN(10,("ulpt_match\n"));
 188         if (uaa->iface == NULL)
 189                 return (UMATCH_NONE);
 190         id = usbd_get_interface_descriptor(uaa->iface);
 191         if (id != NULL &&
 192             id->bInterfaceClass == UICLASS_PRINTER &&
 193             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 194             (id->bInterfaceProtocol == UIPROTO_PRINTER_UNI ||
 195              id->bInterfaceProtocol == UIPROTO_PRINTER_BI ||
 196              id->bInterfaceProtocol == UIPROTO_PRINTER_1284))
 197                 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
 198         return (UMATCH_NONE);
 199 }
 200
 201 USB_ATTACH(ulpt)
 202 {
 203         USB_ATTACH_START(ulpt, sc, uaa);
 204         usbd_device_handle dev = uaa->device;
 205         usbd_interface_handle iface = uaa->iface;
 206         usb_interface_descriptor_t *ifcd = usbd_get_interface_descriptor(iface);
 207         usb_interface_descriptor_t *id, *iend;
 208         usb_config_descriptor_t *cdesc;
 209         usbd_status err;
 210         char devinfo[1024];
 211         usb_endpoint_descriptor_t *ed;
 212         u_int8_t epcount;
 213         int i, altno;
 214
 215         DPRINTFN(10,("ulpt_attach: sc=%p\n", sc));
 216         usbd_devinfo(dev, 0, devinfo);
 217         USB_ATTACH_SETUP;
 218         printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev),
 219                devinfo, ifcd->bInterfaceClass, ifcd->bInterfaceSubClass);
 220
 221         /* XXX
 222          * Stepping through the alternate settings needs to be abstracted out.
 223          */
 224         cdesc = usbd_get_config_descriptor(dev);
 225         if (cdesc == NULL) {
 226                 printf("%s: failed to get configuration descriptor\n",
 227                        USBDEVNAME(sc->sc_dev));
 228                 USB_ATTACH_ERROR_RETURN;
 229         }
 230         iend = (usb_interface_descriptor_t *)
 231                    ((char *)cdesc + UGETW(cdesc->wTotalLength));
 232 #ifdef DIAGNOSTIC
 233         if (ifcd < (usb_interface_descriptor_t *)cdesc ||
 234             ifcd >= iend)
 235                 panic("ulpt: iface desc out of range");
 236 #endif
 237         /* Step through all the descriptors looking for bidir mode */
 238         for (id = ifcd, altno = 0;
 239              id < iend;
 240              id = (void *)((char *)id + id->bLength)) {
 241                 if (id->bDescriptorType == UDESC_INTERFACE &&
 242                     id->bInterfaceNumber == ifcd->bInterfaceNumber) {
 243                         if (id->bInterfaceClass == UICLASS_PRINTER &&
 244                             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 245                             (id->bInterfaceProtocol == UIPROTO_PRINTER_BI /* ||
 246                              id->bInterfaceProtocol == UIPROTO_PRINTER_1284 */))
 247                                 goto found;
 248                         altno++;
 249                 }
 250         }
 251         id = ifcd;              /* not found, use original */
 252  found:
 253         if (id != ifcd) {
 254                 /* Found a new bidir setting */
 255                 DPRINTF(("ulpt_attach: set altno = %d\n", altno));
 256                 err = usbd_set_interface(iface, altno);
 257                 if (err) {
 258                         printf("%s: setting alternate interface failed\n",
 259                                USBDEVNAME(sc->sc_dev));
 260                         sc->sc_dying = 1;
 261                         USB_ATTACH_ERROR_RETURN;
 262                 }
 263         }
 264
 265         epcount = 0;
 266         (void)usbd_endpoint_count(iface, &epcount);
 267
 268         sc->sc_in = -1;
 269         sc->sc_out = -1;
 270         for (i = 0; i < epcount; i++) {
 271                 ed = usbd_interface2endpoint_descriptor(iface, i);
 272                 if (ed == NULL) {
 273                         printf("%s: couldn't get ep %d\n",
 274                             USBDEVNAME(sc->sc_dev), i);
 275                         USB_ATTACH_ERROR_RETURN;
 276                 }
 277                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
 278                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 279                         sc->sc_in = ed->bEndpointAddress;
 280                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
 281                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 282                         sc->sc_out = ed->bEndpointAddress;
 283                 }
 284         }
 285         if (sc->sc_out == -1) {
 286                 printf("%s: could not find bulk out endpoint\n",
 287                     USBDEVNAME(sc->sc_dev));
 288                 sc->sc_dying = 1;
 289                 USB_ATTACH_ERROR_RETURN;
 290         }
 291
 292         if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) {
 293                 /* This device doesn't handle reading properly. */
 294                 sc->sc_in = -1;
 295         }
 296
 297         printf("%s: using %s-directional mode\n", USBDEVNAME(sc->sc_dev),
 298                sc->sc_in >= 0 ? "bi" : "uni");
 299
 300         DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out));
 301
 302         sc->sc_iface = iface;
 303         sc->sc_ifaceno = id->bInterfaceNumber;
 304         sc->sc_udev = dev;
 305
 306 #if 0
 307 /*
 308  * This code is disabled because for some mysterious reason it causes
 309  * printing not to work.  But only sometimes, and mostly with
 310  * UHCI and less often with OHCI.  *sigh*
 311  */
 312         {
 313         usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev);
 314         usb_device_request_t req;
 315         int len, alen;
 316
 317         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 318         req.bRequest = UR_GET_DEVICE_ID;
 319         USETW(req.wValue, cd->bConfigurationValue);
 320         USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting);
 321         USETW(req.wLength, sizeof devinfo - 1);
 322         err = usbd_do_request_flags(dev, &req, devinfo, USBD_SHORT_XFER_OK,
 323                   &alen, USBD_DEFAULT_TIMEOUT);
 324         if (err) {
 325                 printf("%s: cannot get device id\n", USBDEVNAME(sc->sc_dev));
 326         } else if (alen <= 2) {
 327                 printf("%s: empty device id, no printer connected?\n",
 328                        USBDEVNAME(sc->sc_dev));
 329         } else {
 330                 /* devinfo now contains an IEEE-1284 device ID */
 331                 len = ((devinfo[0] & 0xff) << 8) | (devinfo[1] & 0xff);
 332                 if (len > sizeof devinfo - 3)
 333                         len = sizeof devinfo - 3;
 334                 devinfo[len] = 0;
 335                 printf("%s: device id <", USBDEVNAME(sc->sc_dev));
 336                 ieee1284_print_id(devinfo+2);
 337                 printf(">\n");
 338         }
 339         }
 340 #endif
 341
 342 #if defined(__FreeBSD__) || defined(__DragonFly__)
 343         cdevsw_add(&ulpt_cdevsw, -1, device_get_unit(self));
 344         make_dev(&ulpt_cdevsw, device_get_unit(self),
 345                 UID_ROOT, GID_OPERATOR, 0644, "ulpt%d", device_get_unit(self));
 346         make_dev(&ulpt_cdevsw,
 347                 device_get_unit(self)|ULPT_NOPRIME,
 348                 UID_ROOT, GID_OPERATOR, 0644, "unlpt%d", device_get_unit(self));
 349 #endif
 350
 351         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
 352                            USBDEV(sc->sc_dev));
 353
 354         USB_ATTACH_SUCCESS_RETURN;
 355 }
 356
 357 #if defined(__NetBSD__) || defined(__OpenBSD__)
 358 int
 359 ulpt_activate(device_ptr_t self, enum devact act)
 360 {
 361         struct ulpt_softc *sc = (struct ulpt_softc *)self;
 362
 363         switch (act) {
 364         case DVACT_ACTIVATE:
 365                 return (EOPNOTSUPP);
 366
 367         case DVACT_DEACTIVATE:
 368                 sc->sc_dying = 1;
 369                 break;
 370         }
 371         return (0);
 372 }
 373 #endif
 374
 375 USB_DETACH(ulpt)
 376 {
 377         USB_DETACH_START(ulpt, sc);
 378         int s;
 379 #if defined(__NetBSD__) || defined(__OpenBSD__)
 380         int maj, mn;
 381 #endif
 382
 383 #if defined(__NetBSD__) || defined(__OpenBSD__)
 384         DPRINTF(("ulpt_detach: sc=%p flags=%d\n", sc, flags));
 385 #elif defined(__FreeBSD__) || defined(__DragonFly__)
 386         DPRINTF(("ulpt_detach: sc=%p\n", sc));
 387 #endif
 388
 389         sc->sc_dying = 1;
 390         if (sc->sc_out_pipe != NULL)
 391                 usbd_abort_pipe(sc->sc_out_pipe);
 392         if (sc->sc_in_pipe != NULL)
 393                 usbd_abort_pipe(sc->sc_in_pipe);
 394
 395         /*
 396          * Wait for any ongoing operations to complete before we actually
 397          * close things down.
 398          */
 399
 400         s = splusb();
 401         --sc->sc_refcnt;
 402         if (sc->sc_refcnt >= 0) {
 403                 printf("%s: waiting for idle\n", USBDEVNAME(sc->sc_dev));
 404                 while (sc->sc_refcnt >= 0)
 405                         usb_detach_wait(USBDEV(sc->sc_dev));
 406                 printf("%s: idle wait done\n", USBDEVNAME(sc->sc_dev));
 407         }
 408         splx(s);
 409
 410 #if defined(__NetBSD__) || defined(__OpenBSD__)
 411         /* locate the major number */
 412 #if defined(__NetBSD__)
 413         maj = cdevsw_lookup_major(&ulpt_cdevsw);
 414 #elif defined(__OpenBSD__)
 415         for (maj = 0; maj < nchrdev; maj++)
 416                 if (cdevsw[maj].d_open == ulptopen)
 417                         break;
 418 #endif
 419
 420         /* Nuke the vnodes for any open instances (calls close). */
 421         mn = self->dv_unit;
 422         vdevgone(maj, mn, mn, VCHR);
 423 #elif defined(__FreeBSD__) || defined(__DragonFly__)
 424         cdevsw_remove(&ulpt_cdevsw, -1, device_get_unit(self));
 425 #endif
 426
 427         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
 428                            USBDEV(sc->sc_dev));
 429
 430         return (0);
 431 }
 432
 433 int
 434 ulpt_status(struct ulpt_softc *sc)
 435 {
 436         usb_device_request_t req;
 437         usbd_status err;
 438         u_char status;
 439
 440         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 441         req.bRequest = UR_GET_PORT_STATUS;
 442         USETW(req.wValue, 0);
 443         USETW(req.wIndex, sc->sc_ifaceno);
 444         USETW(req.wLength, 1);
 445         err = usbd_do_request(sc->sc_udev, &req, &status);
 446         DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err));
 447         if (!err)
 448                 return (status);
 449         else
 450                 return (0);
 451 }
 452
 453 void
 454 ulpt_reset(struct ulpt_softc *sc)
 455 {
 456         usb_device_request_t req;
 457
 458         DPRINTFN(1, ("ulpt_reset\n"));
 459         req.bRequest = UR_SOFT_RESET;
 460         USETW(req.wValue, 0);
 461         USETW(req.wIndex, sc->sc_ifaceno);
 462         USETW(req.wLength, 0);
 463
 464         /*
 465          * There was a mistake in the USB printer 1.0 spec that gave the
 466          * request type as UT_WRITE_CLASS_OTHER; it should have been
 467          * UT_WRITE_CLASS_INTERFACE.  Many printers use the old one,
 468          * so we try both.
 469          */
 470         req.bmRequestType = UT_WRITE_CLASS_OTHER;
 471         if (usbd_do_request(sc->sc_udev, &req, 0)) {    /* 1.0 */
 472                 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 473                 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */
 474         }
 475 }
 476
 477 static void
 478 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 479 {
 480         struct ulpt_softc *sc = priv;
 481         u_int32_t count;
 482
 483         /* Don't loop on errors or 0-length input. */
 484         usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
 485         if (status != USBD_NORMAL_COMPLETION || count == 0)
 486                 return;
 487
 488         DPRINTFN(2,("ulpt_input: got some data\n"));
 489         /* Do it again. */
 490         if (xfer == sc->sc_in_xfer1)
 491                 usbd_transfer(sc->sc_in_xfer2);
 492         else
 493                 usbd_transfer(sc->sc_in_xfer1);
 494 }
 495
 496 int ulptusein = 1;
 497
 498 /*
 499  * Reset the printer, then wait until it's selected and not busy.
 500  */
 501 int
 502 ulptopen(dev_t dev, int flag, int mode, usb_proc_ptr p)
 503 {
 504         u_char flags = ULPTFLAGS(dev);
 505         struct ulpt_softc *sc;
 506         usbd_status err;
 507         int spin, error;
 508
 509         USB_GET_SC_OPEN(ulpt, ULPTUNIT(dev), sc);
 510
 511         if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying)
 512                 return (ENXIO);
 513
 514         if (sc->sc_state)
 515                 return (EBUSY);
 516
 517         sc->sc_state = ULPT_INIT;
 518         sc->sc_flags = flags;
 519         DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags));
 520
 521 #if defined(USB_DEBUG) && (defined(__FreeBSD__) || defined(__DragonFly__))
 522         /* Ignoring these flags might not be a good idea */
 523         if ((flags & ~ULPT_NOPRIME) != 0)
 524                 printf("ulptopen: flags ignored: %b\n", flags,
 525                         "\20\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS");
 526 #endif
 527
 528         error = 0;
 529         sc->sc_refcnt++;
 530
 531         if ((flags & ULPT_NOPRIME) == 0) {
 532                 ulpt_reset(sc);
 533                 if (sc->sc_dying) {
 534                         error = ENXIO;
 535                         sc->sc_state = 0;
 536                         goto done;
 537                 }
 538         }
 539
 540         for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) {
 541                 DPRINTF(("ulpt_open: waiting a while\n"));
 542                 if (spin >= TIMEOUT) {
 543                         error = EBUSY;
 544                         sc->sc_state = 0;
 545                         goto done;
 546                 }
 547
 548                 /* wait 1/4 second, give up if we get a signal */
 549                 error = tsleep((caddr_t)sc, PCATCH, "ulptop", STEP);
 550                 if (error != EWOULDBLOCK) {
 551                         sc->sc_state = 0;
 552                         goto done;
 553                 }
 554
 555                 if (sc->sc_dying) {
 556                         error = ENXIO;
 557                         sc->sc_state = 0;
 558                         goto done;
 559                 }
 560         }
 561
 562         err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe);
 563         if (err) {
 564                 sc->sc_state = 0;
 565                 error = EIO;
 566                 goto done;
 567         }
 568
 569         if (ulptusein && sc->sc_in != -1) {
 570                 DPRINTF(("ulpt_open: open input pipe\n"));
 571                 err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe);
 572                 if (err) {
 573                         error = EIO;
 574                         usbd_close_pipe(sc->sc_out_pipe);
 575                         sc->sc_out_pipe = NULL;
 576                         sc->sc_state = 0;
 577                         goto done;
 578                 }
 579                 sc->sc_in_xfer1 = usbd_alloc_xfer(sc->sc_udev);
 580                 sc->sc_in_xfer2 = usbd_alloc_xfer(sc->sc_udev);
 581                 if (sc->sc_in_xfer1 == NULL || sc->sc_in_xfer2 == NULL) {
 582                         error = ENOMEM;
 583                         if (sc->sc_in_xfer1 != NULL) {
 584                                 usbd_free_xfer(sc->sc_in_xfer1);
 585                                 sc->sc_in_xfer1 = NULL;
 586                         }
 587                         if (sc->sc_in_xfer2 != NULL) {
 588                                 usbd_free_xfer(sc->sc_in_xfer2);
 589                                 sc->sc_in_xfer2 = NULL;
 590                         }
 591                         usbd_close_pipe(sc->sc_out_pipe);
 592                         sc->sc_out_pipe = NULL;
 593                         usbd_close_pipe(sc->sc_in_pipe);
 594                         sc->sc_in_pipe = NULL;
 595                         sc->sc_state = 0;
 596                         goto done;
 597                 }
 598                 usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc,
 599                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 600                     USBD_NO_TIMEOUT, ulpt_input);
 601                 usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc,
 602                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 603                     USBD_NO_TIMEOUT, ulpt_input);
 604                 usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */
 605         }
 606
 607         sc->sc_state = ULPT_OPEN;
 608
 609 done:
 610         if (--sc->sc_refcnt < 0)
 611                 usb_detach_wakeup(USBDEV(sc->sc_dev));
 612
 613         DPRINTF(("ulptopen: done, error=%d\n", error));
 614         return (error);
 615 }
 616
 617 int
 618 ulpt_statusmsg(u_char status, struct ulpt_softc *sc)
 619 {
 620         u_char new;
 621
 622         status = (status ^ LPS_INVERT) & LPS_MASK;
 623         new = status & ~sc->sc_laststatus;
 624         sc->sc_laststatus = status;
 625
 626         if (new & LPS_SELECT)
 627                 log(LOG_NOTICE, "%s: offline\n", USBDEVNAME(sc->sc_dev));
 628         else if (new & LPS_NOPAPER)
 629                 log(LOG_NOTICE, "%s: out of paper\n", USBDEVNAME(sc->sc_dev));
 630         else if (new & LPS_NERR)
 631                 log(LOG_NOTICE, "%s: output error\n", USBDEVNAME(sc->sc_dev));
 632
 633         return (status);
 634 }
 635
 636 int
 637 ulptclose(dev_t dev, int flag, int mode, usb_proc_ptr p)
 638 {
 639         struct ulpt_softc *sc;
 640
 641         USB_GET_SC(ulpt, ULPTUNIT(dev), sc);
 642
 643         if (sc->sc_state != ULPT_OPEN)
 644                 /* We are being forced to close before the open completed. */
 645                 return (0);
 646
 647         if (sc->sc_out_pipe != NULL) {
 648                 usbd_close_pipe(sc->sc_out_pipe);
 649                 sc->sc_out_pipe = NULL;
 650         }
 651         if (sc->sc_in_pipe != NULL) {
 652                 usbd_abort_pipe(sc->sc_in_pipe);
 653                 usbd_close_pipe(sc->sc_in_pipe);
 654                 sc->sc_in_pipe = NULL;
 655                 if (sc->sc_in_xfer1 != NULL) {
 656                         usbd_free_xfer(sc->sc_in_xfer1);
 657                         sc->sc_in_xfer1 = NULL;
 658                 }
 659                 if (sc->sc_in_xfer2 != NULL) {
 660                         usbd_free_xfer(sc->sc_in_xfer2);
 661                         sc->sc_in_xfer2 = NULL;
 662                 }
 663         }
 664
 665         sc->sc_state = 0;
 666
 667         DPRINTF(("ulptclose: closed\n"));
 668         return (0);
 669 }
 670
 671 int
 672 ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags)
 673 {
 674         u_int32_t n;
 675         int error = 0;
 676         void *bufp;
 677         usbd_xfer_handle xfer;
 678         usbd_status err;
 679
 680         DPRINTF(("ulptwrite\n"));
 681         xfer = usbd_alloc_xfer(sc->sc_udev);
 682         if (xfer == NULL)
 683                 return (ENOMEM);
 684         bufp = usbd_alloc_buffer(xfer, ULPT_BSIZE);
 685         if (bufp == NULL) {
 686                 usbd_free_xfer(xfer);
 687                 return (ENOMEM);
 688         }
 689         while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) {
 690                 ulpt_statusmsg(ulpt_status(sc), sc);
 691                 error = uiomove(bufp, n, uio);
 692                 if (error)
 693                         break;
 694                 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n));
 695                 err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY,
 696                           USBD_NO_TIMEOUT, bufp, &n, "ulptwr");
 697                 if (err) {
 698                         DPRINTF(("ulptwrite: error=%d\n", err));
 699                         error = EIO;
 700                         break;
 701                 }
 702         }
 703         usbd_free_xfer(xfer);
 704
 705         return (error);
 706 }
 707
 708 int
 709 ulptwrite(dev_t dev, struct uio *uio, int flags)
 710 {
 711         struct ulpt_softc *sc;
 712         int error;
 713
 714         USB_GET_SC(ulpt, ULPTUNIT(dev), sc);
 715
 716         if (sc->sc_dying)
 717                 return (EIO);
 718
 719         sc->sc_refcnt++;
 720         error = ulpt_do_write(sc, uio, flags);
 721         if (--sc->sc_refcnt < 0)
 722                 usb_detach_wakeup(USBDEV(sc->sc_dev));
 723         return (error);
 724 }
 725
 726 int
 727 ulptioctl(dev_t dev, u_long cmd, caddr_t data, int flag, usb_proc_ptr p)
 728 {
 729         int error = 0;
 730
 731         switch (cmd) {
 732         default:
 733                 error = ENODEV;
 734         }
 735
 736         return (error);
 737 }
 738
 739 #if 0
 740 /* XXX This does not belong here. */
 741 /*
 742  * Print select parts of an IEEE 1284 device ID.
 743  */
 744 void
 745 ieee1284_print_id(char *str)
 746 {
 747         char *p, *q;
 748
 749         for (p = str-1; p; p = strchr(p, ';')) {
 750                 p++;            /* skip ';' */
 751                 if (strncmp(p, "MFG:", 4) == 0 ||
 752                     strncmp(p, "MANUFACTURER:", 14) == 0 ||
 753                     strncmp(p, "MDL:", 4) == 0 ||
 754                     strncmp(p, "MODEL:", 6) == 0) {
 755                         q = strchr(p, ';');
 756                         if (q)
 757                                 printf("%.*s", (int)(q - p + 1), p);
 758                 }
 759         }
 760 }
 761 #endif
 762
 763 #if defined(__FreeBSD__) || defined(__DragonFly__)
 764 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, 0);
 765 #endif