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  */
   5
   6 /*
   7  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   8  * All rights reserved.
   9  *
  10  * This code is derived from software contributed to The NetBSD Foundation
  11  * by Lennart Augustsson (lennart@augustsson.net) at
  12  * Carlstedt Research & Technology.
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions
  16  * are met:
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  * 2. Redistributions in binary form must reproduce the above copyright
  20  *    notice, this list of conditions and the following disclaimer in the
  21  *    documentation and/or other materials provided with the distribution.
  22  * 3. All advertising materials mentioning features or use of this software
  23  *    must display the following acknowledgement:
  24  *        This product includes software developed by the NetBSD
  25  *        Foundation, Inc. and its contributors.
  26  * 4. Neither the name of The NetBSD Foundation nor the names of its
  27  *    contributors may be used to endorse or promote products derived
  28  *    from this software without specific prior written permission.
  29  *
  30  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  31  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  32  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  33  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  34  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  35  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  36  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  37  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  38  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  39  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  40  * POSSIBILITY OF SUCH DAMAGE.
  41  */
  42
  43 /*
  44  * Printer Class spec: http://www.usb.org/developers/data/devclass/usbprint109.PDF
  45  */
  46
  47 #include <sys/param.h>
  48 #include <sys/systm.h>
  49 #include <sys/proc.h>
  50 #include <sys/kernel.h>
  51 #include <sys/module.h>
  52 #include <sys/bus.h>
  53 #include <sys/uio.h>
  54 #include <sys/conf.h>
  55 #include <sys/event.h>
  56 #include <sys/device.h>
  57 #include <sys/syslog.h>
  58 #include <sys/sysctl.h>
  59 #include <sys/devfs.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         cdev_t  sc_cdev1;
 100         cdev_t  sc_cdev2;
 101
 102         int sc_out;
 103         usbd_pipe_handle sc_out_pipe;   /* bulk out pipe */
 104
 105         int sc_in;
 106         usbd_pipe_handle sc_in_pipe;    /* bulk in pipe */
 107         usbd_xfer_handle sc_in_xfer1;
 108         usbd_xfer_handle sc_in_xfer2;
 109         u_char sc_junk[64];     /* somewhere to dump input */
 110
 111         u_char sc_state;
 112 #define ULPT_OPEN       0x01    /* device is open */
 113 #define ULPT_OBUSY      0x02    /* printer is busy doing output */
 114 #define ULPT_INIT       0x04    /* waiting to initialize for open */
 115         u_char sc_flags;
 116 #define ULPT_NOPRIME    0x40    /* don't prime on open */
 117         u_char sc_laststatus;
 118
 119         int sc_refcnt;
 120         u_char sc_dying;
 121         struct kqinfo   sc_wkq;
 122         int vendor;
 123         int product;
 124 };
 125
 126 static d_open_t ulptopen;
 127 static d_close_t ulptclose;
 128 static d_write_t ulptwrite;
 129 static d_ioctl_t ulptioctl;
 130 static d_kqfilter_t ulptkqfilter;
 131
 132 static void ulpt_filt_detach(struct knote *);
 133 static int ulpt_filt(struct knote *, long);
 134
 135 static struct dev_ops ulpt_ops = {
 136         { "ulpt", 0, 0 },
 137         .d_open =       ulptopen,
 138         .d_close =      ulptclose,
 139         .d_write =      ulptwrite,
 140         .d_ioctl =      ulptioctl,
 141         .d_kqfilter =   ulptkqfilter
 142 };
 143
 144 void ulpt_disco(void *);
 145
 146 int ulpt_do_write(struct ulpt_softc *, struct uio *uio, int);
 147 int ulpt_status(struct ulpt_softc *);
 148 void ulpt_reset(struct ulpt_softc *);
 149 int ulpt_statusmsg(u_char, struct ulpt_softc *);
 150
 151 #if 0
 152 void ieee1284_print_id(char *);
 153 #endif
 154
 155 #define ULPTUNIT(s)     (minor(s) & 0x1f)
 156 #define ULPTFLAGS(s)    (minor(s) & 0xe0)
 157
 158
 159 static device_probe_t ulpt_match;
 160 static device_attach_t ulpt_attach;
 161 static device_detach_t ulpt_detach;
 162
 163 static devclass_t ulpt_devclass;
 164
 165 static kobj_method_t ulpt_methods[] = {
 166         DEVMETHOD(device_probe, ulpt_match),
 167         DEVMETHOD(device_attach, ulpt_attach),
 168         DEVMETHOD(device_detach, ulpt_detach),
 169         {0,0}
 170 };
 171
 172 static driver_t ulpt_driver = {
 173         "ulpt",
 174         ulpt_methods,
 175         sizeof(struct ulpt_softc)
 176 };
 177
 178 MODULE_DEPEND(ulpt, usb, 1, 1, 1);
 179
 180 static int
 181 ulpt_match(device_t self)
 182 {
 183         struct usb_attach_arg *uaa = device_get_ivars(self);
 184         usb_interface_descriptor_t *id;
 185
 186         DPRINTFN(10,("ulpt_match\n"));
 187         if (uaa->iface == NULL)
 188                 return (UMATCH_NONE);
 189         id = usbd_get_interface_descriptor(uaa->iface);
 190         if (id != NULL &&
 191             id->bInterfaceClass == UICLASS_PRINTER &&
 192             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 193             (id->bInterfaceProtocol == UIPROTO_PRINTER_UNI ||
 194              id->bInterfaceProtocol == UIPROTO_PRINTER_BI ||
 195              id->bInterfaceProtocol == UIPROTO_PRINTER_1284))
 196                 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
 197         return (UMATCH_NONE);
 198 }
 199
 200 static int
 201 ulpt_attach(device_t self)
 202 {
 203         struct ulpt_softc *sc = device_get_softc(self);
 204         struct usb_attach_arg *uaa = device_get_ivars(self);
 205         usbd_device_handle dev = uaa->device;
 206         usbd_interface_handle iface = uaa->iface;
 207         usb_interface_descriptor_t *ifcd = usbd_get_interface_descriptor(iface);
 208         usb_interface_descriptor_t *id, *iend;
 209         usb_config_descriptor_t *cdesc;
 210         usbd_status err;
 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         sc->sc_dev = self;
 217
 218         /* XXX
 219          * Stepping through the alternate settings needs to be abstracted out.
 220          */
 221         cdesc = usbd_get_config_descriptor(dev);
 222         if (cdesc == NULL) {
 223                 kprintf("%s: failed to get configuration descriptor\n",
 224                        device_get_nameunit(sc->sc_dev));
 225                 return ENXIO;
 226         }
 227         iend = (usb_interface_descriptor_t *)
 228                    ((char *)cdesc + UGETW(cdesc->wTotalLength));
 229 #ifdef DIAGNOSTIC
 230         if (ifcd < (usb_interface_descriptor_t *)cdesc ||
 231             ifcd >= iend)
 232                 panic("ulpt: iface desc out of range");
 233 #endif
 234         /* Step through all the descriptors looking for bidir mode */
 235         for (id = ifcd, altno = 0;
 236              id < iend;
 237              id = (void *)((char *)id + id->bLength)) {
 238                 if (id->bDescriptorType == UDESC_INTERFACE &&
 239                     id->bInterfaceNumber == ifcd->bInterfaceNumber) {
 240                         if (id->bInterfaceClass == UICLASS_PRINTER &&
 241                             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 242                             (id->bInterfaceProtocol == UIPROTO_PRINTER_BI /* ||
 243                              id->bInterfaceProtocol == UIPROTO_PRINTER_1284 */))
 244                                 goto found;
 245                         altno++;
 246                 }
 247         }
 248         id = ifcd;              /* not found, use original */
 249  found:
 250         if (id != ifcd) {
 251                 /* Found a new bidir setting */
 252                 DPRINTF(("ulpt_attach: set altno = %d\n", altno));
 253                 err = usbd_set_interface(iface, altno);
 254                 if (err) {
 255                         kprintf("%s: setting alternate interface failed\n",
 256                                device_get_nameunit(sc->sc_dev));
 257                         sc->sc_dying = 1;
 258                         return ENXIO;
 259                 }
 260         }
 261
 262         epcount = 0;
 263         (void)usbd_endpoint_count(iface, &epcount);
 264
 265         sc->sc_in = -1;
 266         sc->sc_out = -1;
 267         sc->vendor = uaa->vendor;
 268         sc->product = uaa->product;
 269         for (i = 0; i < epcount; i++) {
 270                 ed = usbd_interface2endpoint_descriptor(iface, i);
 271                 if (ed == NULL) {
 272                         kprintf("%s: couldn't get ep %d\n",
 273                             device_get_nameunit(sc->sc_dev), i);
 274                         return ENXIO;
 275                 }
 276                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
 277                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 278                         sc->sc_in = ed->bEndpointAddress;
 279                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
 280                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 281                         sc->sc_out = ed->bEndpointAddress;
 282                 }
 283         }
 284         if (sc->sc_out == -1) {
 285                 kprintf("%s: could not find bulk out endpoint\n",
 286                     device_get_nameunit(sc->sc_dev));
 287                 sc->sc_dying = 1;
 288                 return ENXIO;
 289         }
 290
 291         if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) {
 292                 /* This device doesn't handle reading properly. */
 293                 sc->sc_in = -1;
 294         }
 295
 296         kprintf("%s: using %s-directional mode\n", device_get_nameunit(sc->sc_dev),
 297                sc->sc_in >= 0 ? "bi" : "uni");
 298
 299         DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out));
 300
 301         sc->sc_iface = iface;
 302         sc->sc_ifaceno = id->bInterfaceNumber;
 303         sc->sc_udev = dev;
 304
 305         sc->sc_cdev1 = make_dev(&ulpt_ops, device_get_unit(self),
 306                                 UID_ROOT, GID_OPERATOR, 0644,
 307                                 "ulpt%d", device_get_unit(self));
 308         sc->sc_cdev2 = make_dev(&ulpt_ops, device_get_unit(self)|ULPT_NOPRIME,
 309                                 UID_ROOT, GID_OPERATOR, 0644,
 310                                 "unlpt%d", device_get_unit(self));
 311
 312         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
 313                            sc->sc_dev);
 314
 315         return 0;
 316 }
 317
 318 static int
 319 ulpt_detach(device_t self)
 320 {
 321         struct ulpt_softc *sc = device_get_softc(self);
 322
 323         DPRINTF(("ulpt_detach: sc=%p\n", sc));
 324
 325         sc->sc_dying = 1;
 326         if (sc->sc_out_pipe != NULL)
 327                 usbd_abort_pipe(sc->sc_out_pipe);
 328         if (sc->sc_in_pipe != NULL)
 329                 usbd_abort_pipe(sc->sc_in_pipe);
 330
 331         /*
 332          * Wait for any ongoing operations to complete before we actually
 333          * close things down.
 334          */
 335
 336         crit_enter();
 337         --sc->sc_refcnt;
 338         if (sc->sc_refcnt >= 0) {
 339                 kprintf("%s: waiting for idle\n", device_get_nameunit(sc->sc_dev));
 340                 while (sc->sc_refcnt >= 0)
 341                         usb_detach_wait(sc->sc_dev);
 342                 kprintf("%s: idle wait done\n", device_get_nameunit(sc->sc_dev));
 343         }
 344         crit_exit();
 345
 346         dev_ops_remove_minor(&ulpt_ops, /*-1, */device_get_unit(self));
 347         devfs_assume_knotes(sc->sc_cdev1, &sc->sc_wkq);
 348         devfs_assume_knotes(sc->sc_cdev2, &sc->sc_wkq);
 349
 350         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
 351
 352         return (0);
 353 }
 354
 355 int
 356 ulpt_status(struct ulpt_softc *sc)
 357 {
 358         usb_device_request_t req;
 359         usbd_status err;
 360         u_char status;
 361
 362         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 363         req.bRequest = UR_GET_PORT_STATUS;
 364         USETW(req.wValue, 0);
 365         USETW(req.wIndex, sc->sc_ifaceno);
 366         USETW(req.wLength, 1);
 367         err = usbd_do_request(sc->sc_udev, &req, &status);
 368         DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err));
 369         if (!err)
 370                 return (status);
 371         else
 372                 return (0);
 373 }
 374
 375 void
 376 ulpt_reset(struct ulpt_softc *sc)
 377 {
 378         usb_device_request_t req;
 379         int other_fails;
 380
 381         /* The Brother HL1240 doesn't handle UT_WRITE_CLASS_OTHER */
 382         other_fails = (sc->vendor == 0x04f9 && sc->product == 0x0006);
 383
 384         DPRINTFN(1, ("ulpt_reset\n"));
 385         req.bRequest = UR_SOFT_RESET;
 386         USETW(req.wValue, 0);
 387         USETW(req.wIndex, sc->sc_ifaceno);
 388         USETW(req.wLength, 0);
 389
 390         /*
 391          * There was a mistake in the USB printer 1.0 spec that gave the
 392          * request type as UT_WRITE_CLASS_OTHER; it should have been
 393          * UT_WRITE_CLASS_INTERFACE.  Many printers use the old one,
 394          * so we try both.
 395          */
 396         req.bmRequestType = UT_WRITE_CLASS_OTHER;
 397         /* Some printers don't handle UT_WRITE_CLASS_OTHER */
 398         if (other_fails || usbd_do_request(sc->sc_udev, &req, 0)) {/* 1.0 */
 399                 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 400                 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */
 401         }
 402 }
 403
 404 static void
 405 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 406 {
 407         struct ulpt_softc *sc = priv;
 408         u_int32_t count;
 409
 410         /* Don't loop on errors or 0-length input. */
 411         usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
 412         if (status != USBD_NORMAL_COMPLETION || count == 0)
 413                 return;
 414
 415         DPRINTFN(2,("ulpt_input: got some data\n"));
 416         /* Do it again. */
 417         if (xfer == sc->sc_in_xfer1)
 418                 usbd_transfer(sc->sc_in_xfer2);
 419         else
 420                 usbd_transfer(sc->sc_in_xfer1);
 421 }
 422
 423 int ulptusein = 1;
 424
 425 /*
 426  * Reset the printer, then wait until it's selected and not busy.
 427  */
 428 int
 429 ulptopen(struct dev_open_args *ap)
 430 {
 431         cdev_t dev = ap->a_head.a_dev;
 432         u_char flags = ULPTFLAGS(dev);
 433         struct ulpt_softc *sc;
 434         usbd_status err;
 435         int spin, error;
 436
 437         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 438         if (sc == NULL)
 439                 return (ENXIO);
 440
 441         if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying)
 442                 return (ENXIO);
 443
 444         if (sc->sc_state)
 445                 return (EBUSY);
 446
 447         sc->sc_state = ULPT_INIT;
 448         sc->sc_flags = flags;
 449         DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags));
 450
 451 #if defined(USB_DEBUG)
 452         /* Ignoring these flags might not be a good idea */
 453         if ((flags & ~ULPT_NOPRIME) != 0)
 454                 kprintf("ulptopen: flags ignored: %b\n", flags,
 455                         "\20\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS");
 456 #endif
 457
 458         error = 0;
 459         sc->sc_refcnt++;
 460
 461         if ((flags & ULPT_NOPRIME) == 0) {
 462                 ulpt_reset(sc);
 463                 if (sc->sc_dying) {
 464                         error = ENXIO;
 465                         sc->sc_state = 0;
 466                         goto done;
 467                 }
 468         }
 469
 470         for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) {
 471                 DPRINTF(("ulpt_open: waiting a while\n"));
 472                 if (spin >= TIMEOUT) {
 473                         error = EBUSY;
 474                         sc->sc_state = 0;
 475                         goto done;
 476                 }
 477
 478                 /* wait 1/4 second, give up if we get a signal */
 479                 error = tsleep((caddr_t)sc, PCATCH, "ulptop", STEP);
 480                 if (error != EWOULDBLOCK) {
 481                         sc->sc_state = 0;
 482                         goto done;
 483                 }
 484
 485                 if (sc->sc_dying) {
 486                         error = ENXIO;
 487                         sc->sc_state = 0;
 488                         goto done;
 489                 }
 490         }
 491
 492         err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe);
 493         if (err) {
 494                 sc->sc_state = 0;
 495                 error = EIO;
 496                 goto done;
 497         }
 498
 499         if (ulptusein && sc->sc_in != -1) {
 500                 DPRINTF(("ulpt_open: open input pipe\n"));
 501                 err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe);
 502                 if (err) {
 503                         error = EIO;
 504                         usbd_close_pipe(sc->sc_out_pipe);
 505                         sc->sc_out_pipe = NULL;
 506                         sc->sc_state = 0;
 507                         goto done;
 508                 }
 509                 sc->sc_in_xfer1 = usbd_alloc_xfer(sc->sc_udev);
 510                 sc->sc_in_xfer2 = usbd_alloc_xfer(sc->sc_udev);
 511                 if (sc->sc_in_xfer1 == NULL || sc->sc_in_xfer2 == NULL) {
 512                         error = ENOMEM;
 513                         if (sc->sc_in_xfer1 != NULL) {
 514                                 usbd_free_xfer(sc->sc_in_xfer1);
 515                                 sc->sc_in_xfer1 = NULL;
 516                         }
 517                         if (sc->sc_in_xfer2 != NULL) {
 518                                 usbd_free_xfer(sc->sc_in_xfer2);
 519                                 sc->sc_in_xfer2 = NULL;
 520                         }
 521                         usbd_close_pipe(sc->sc_out_pipe);
 522                         sc->sc_out_pipe = NULL;
 523                         usbd_close_pipe(sc->sc_in_pipe);
 524                         sc->sc_in_pipe = NULL;
 525                         sc->sc_state = 0;
 526                         goto done;
 527                 }
 528                 usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc,
 529                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 530                     USBD_NO_TIMEOUT, ulpt_input);
 531                 usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc,
 532                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 533                     USBD_NO_TIMEOUT, ulpt_input);
 534                 usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */
 535         }
 536
 537         sc->sc_state = ULPT_OPEN;
 538
 539 done:
 540         if (--sc->sc_refcnt < 0)
 541                 usb_detach_wakeup(sc->sc_dev);
 542
 543         DPRINTF(("ulptopen: done, error=%d\n", error));
 544         return (error);
 545 }
 546
 547 int
 548 ulpt_statusmsg(u_char status, struct ulpt_softc *sc)
 549 {
 550         u_char new;
 551
 552         status = (status ^ LPS_INVERT) & LPS_MASK;
 553         new = status & ~sc->sc_laststatus;
 554         sc->sc_laststatus = status;
 555
 556         if (new & LPS_SELECT)
 557                 log(LOG_NOTICE, "%s: offline\n", device_get_nameunit(sc->sc_dev));
 558         else if (new & LPS_NOPAPER)
 559                 log(LOG_NOTICE, "%s: out of paper\n", device_get_nameunit(sc->sc_dev));
 560         else if (new & LPS_NERR)
 561                 log(LOG_NOTICE, "%s: output error\n", device_get_nameunit(sc->sc_dev));
 562
 563         return (status);
 564 }
 565
 566 int
 567 ulptclose(struct dev_close_args *ap)
 568 {
 569         cdev_t dev = ap->a_head.a_dev;
 570         struct ulpt_softc *sc;
 571
 572         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 573
 574         if (sc->sc_state != ULPT_OPEN)
 575                 /* We are being forced to close before the open completed. */
 576                 return (0);
 577
 578         if (sc->sc_out_pipe != NULL) {
 579                 usbd_close_pipe(sc->sc_out_pipe);
 580                 sc->sc_out_pipe = NULL;
 581         }
 582         if (sc->sc_in_pipe != NULL) {
 583                 usbd_abort_pipe(sc->sc_in_pipe);
 584                 usbd_close_pipe(sc->sc_in_pipe);
 585                 sc->sc_in_pipe = NULL;
 586                 if (sc->sc_in_xfer1 != NULL) {
 587                         usbd_free_xfer(sc->sc_in_xfer1);
 588                         sc->sc_in_xfer1 = NULL;
 589                 }
 590                 if (sc->sc_in_xfer2 != NULL) {
 591                         usbd_free_xfer(sc->sc_in_xfer2);
 592                         sc->sc_in_xfer2 = NULL;
 593                 }
 594         }
 595
 596         sc->sc_state = 0;
 597
 598         DPRINTF(("ulptclose: closed\n"));
 599         return (0);
 600 }
 601
 602 int
 603 ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags)
 604 {
 605         u_int32_t n;
 606         int error = 0;
 607         void *bufp;
 608         usbd_xfer_handle xfer;
 609         usbd_status err;
 610
 611         DPRINTF(("ulptwrite\n"));
 612         xfer = usbd_alloc_xfer(sc->sc_udev);
 613         if (xfer == NULL)
 614                 return (ENOMEM);
 615         bufp = usbd_alloc_buffer(xfer, ULPT_BSIZE);
 616         if (bufp == NULL) {
 617                 usbd_free_xfer(xfer);
 618                 return (ENOMEM);
 619         }
 620         while ((n = szmin(ULPT_BSIZE, uio->uio_resid)) != 0) {
 621                 ulpt_statusmsg(ulpt_status(sc), sc);
 622                 error = uiomove(bufp, n, uio);
 623                 if (error)
 624                         break;
 625                 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n));
 626                 err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY,
 627                           USBD_NO_TIMEOUT, bufp, &n, "ulptwr");
 628                 if (err) {
 629                         DPRINTF(("ulptwrite: error=%d\n", err));
 630                         error = EIO;
 631                         break;
 632                 }
 633         }
 634         usbd_free_xfer(xfer);
 635
 636         return (error);
 637 }
 638
 639 int
 640 ulptwrite(struct dev_write_args *ap)
 641 {
 642         cdev_t dev = ap->a_head.a_dev;
 643         struct ulpt_softc *sc;
 644         int error;
 645
 646         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 647
 648         if (sc->sc_dying)
 649                 return (EIO);
 650
 651         sc->sc_refcnt++;
 652         error = ulpt_do_write(sc, ap->a_uio, ap->a_ioflag);
 653         if (--sc->sc_refcnt < 0)
 654                 usb_detach_wakeup(sc->sc_dev);
 655         return (error);
 656 }
 657
 658 int
 659 ulptioctl(struct dev_ioctl_args *ap)
 660 {
 661         int error = 0;
 662
 663         switch (ap->a_cmd) {
 664         default:
 665                 error = ENODEV;
 666         }
 667
 668         return (error);
 669 }
 670
 671 static struct filterops ulpt_filtops =
 672         { FILTEROP_ISFD, NULL, ulpt_filt_detach, ulpt_filt };
 673
 674 static int
 675 ulptkqfilter(struct dev_kqfilter_args *ap)
 676 {
 677         cdev_t dev = ap->a_head.a_dev;
 678         struct knote *kn = ap->a_kn;
 679         struct ulpt_softc *sc;
 680         struct klist *klist;
 681
 682         ap->a_result = 0;
 683
 684         switch(kn->kn_filter) {
 685         case EVFILT_WRITE:
 686                 sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 687                 kn->kn_fop = &ulpt_filtops;
 688                 kn->kn_hook = (caddr_t)sc;
 689                 break;
 690         default:
 691                 ap->a_result = EOPNOTSUPP;
 692                 return (0);
 693         }
 694
 695         klist = &sc->sc_wkq.ki_note;
 696         knote_insert(klist, kn);
 697
 698         return(0);
 699 }
 700
 701 static void
 702 ulpt_filt_detach(struct knote *kn)
 703 {
 704         struct ulpt_softc *sc = (struct ulpt_softc *)kn->kn_hook;
 705         struct klist *klist;
 706
 707         klist = &sc->sc_wkq.ki_note;
 708         knote_remove(klist, kn);
 709 }
 710
 711 static int
 712 ulpt_filt(struct knote *kn, long hint)
 713 {
 714 /*        struct ulpt_softc *sc = (struct ulpt_softc *)kn->kn_hook;*/
 715
 716         return 1;
 717 }
 718
 719 #if 0
 720 /* XXX This does not belong here. */
 721 /*
 722  * Print select parts of an IEEE 1284 device ID.
 723  */
 724 void
 725 ieee1284_print_id(char *str)
 726 {
 727         char *p, *q;
 728
 729         for (p = str-1; p; p = strchr(p, ';')) {
 730                 p++;            /* skip ';' */
 731                 if (strncmp(p, "MFG:", 4) == 0 ||
 732                     strncmp(p, "MANUFACTURER:", 14) == 0 ||
 733                     strncmp(p, "MDL:", 4) == 0 ||
 734                     strncmp(p, "MODEL:", 6) == 0) {
 735                         q = strchr(p, ';');
 736                         if (q)
 737                                 kprintf("%.*s", (int)(q - p + 1), p);
 738                 }
 739         }
 740 }
 741 #endif
 742
 743 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, NULL);
 744