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 1.17 2007/06/27 12:28:00 hasso Exp $
   5  */
   6
   7 /*
   8  * Copyright (c) 1998 The NetBSD Foundation, Inc.
   9  * All rights reserved.
  10  *
  11  * This code is derived from software contributed to The NetBSD Foundation
  12  * by Lennart Augustsson (lennart@augustsson.net) at
  13  * Carlstedt Research & Technology.
  14  *
  15  * Redistribution and use in source and binary forms, with or without
  16  * modification, are permitted provided that the following conditions
  17  * are met:
  18  * 1. Redistributions of source code must retain the above copyright
  19  *    notice, this list of conditions and the following disclaimer.
  20  * 2. Redistributions in binary form must reproduce the above copyright
  21  *    notice, this list of conditions and the following disclaimer in the
  22  *    documentation and/or other materials provided with the distribution.
  23  * 3. All advertising materials mentioning features or use of this software
  24  *    must display the following acknowledgement:
  25  *        This product includes software developed by the NetBSD
  26  *        Foundation, Inc. and its contributors.
  27  * 4. Neither the name of The NetBSD Foundation nor the names of its
  28  *    contributors may be used to endorse or promote products derived
  29  *    from this software without specific prior written permission.
  30  *
  31  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
  32  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
  33  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  34  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
  35  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  36  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  37  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  38  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  39  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  40  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  41  * POSSIBILITY OF SUCH DAMAGE.
  42  */
  43
  44 /*
  45  * Printer Class spec: http://www.usb.org/developers/data/devclass/usbprint109.PDF
  46  */
  47
  48 #include <sys/param.h>
  49 #include <sys/systm.h>
  50 #include <sys/proc.h>
  51 #include <sys/kernel.h>
  52 #include <sys/ioccom.h>
  53 #include <sys/module.h>
  54 #include <sys/bus.h>
  55 #include <sys/uio.h>
  56 #include <sys/conf.h>
  57 #include <sys/device.h>
  58 #include <sys/syslog.h>
  59 #include <sys/sysctl.h>
  60 #include <sys/thread2.h>
  61
  62 #include <bus/usb/usb.h>
  63 #include <bus/usb/usbdi.h>
  64 #include <bus/usb/usbdi_util.h>
  65 #include <bus/usb/usbdevs.h>
  66 #include <bus/usb/usb_quirks.h>
  67
  68 #define TIMEOUT         hz*16   /* wait up to 16 seconds for a ready */
  69 #define STEP            hz/4
  70
  71 #define ULPT_BSIZE      16384
  72
  73 #ifdef USB_DEBUG
  74 #define DPRINTF(x)      if (ulptdebug) logprintf x
  75 #define DPRINTFN(n,x)   if (ulptdebug>(n)) logprintf x
  76 int     ulptdebug = 0;
  77 SYSCTL_NODE(_hw_usb, OID_AUTO, ulpt, CTLFLAG_RW, 0, "USB ulpt");
  78 SYSCTL_INT(_hw_usb_ulpt, OID_AUTO, debug, CTLFLAG_RW,
  79            &ulptdebug, 0, "ulpt debug level");
  80 #else
  81 #define DPRINTF(x)
  82 #define DPRINTFN(n,x)
  83 #endif
  84
  85 #define UR_GET_DEVICE_ID 0
  86 #define UR_GET_PORT_STATUS 1
  87 #define UR_SOFT_RESET 2
  88
  89 #define LPS_NERR                0x08    /* printer no error */
  90 #define LPS_SELECT              0x10    /* printer selected */
  91 #define LPS_NOPAPER             0x20    /* printer out of paper */
  92 #define LPS_INVERT      (LPS_SELECT|LPS_NERR)
  93 #define LPS_MASK        (LPS_SELECT|LPS_NERR|LPS_NOPAPER)
  94
  95 struct ulpt_softc {
  96         USBBASEDEVICE sc_dev;
  97         usbd_device_handle sc_udev;     /* device */
  98         usbd_interface_handle sc_iface; /* interface */
  99         int sc_ifaceno;
 100
 101         int sc_out;
 102         usbd_pipe_handle sc_out_pipe;   /* bulk out pipe */
 103
 104         int sc_in;
 105         usbd_pipe_handle sc_in_pipe;    /* bulk in pipe */
 106         usbd_xfer_handle sc_in_xfer1;
 107         usbd_xfer_handle sc_in_xfer2;
 108         u_char sc_junk[64];     /* somewhere to dump input */
 109
 110         u_char sc_state;
 111 #define ULPT_OPEN       0x01    /* device is open */
 112 #define ULPT_OBUSY      0x02    /* printer is busy doing output */
 113 #define ULPT_INIT       0x04    /* waiting to initialize for open */
 114         u_char sc_flags;
 115 #define ULPT_NOPRIME    0x40    /* don't prime on open */
 116         u_char sc_laststatus;
 117
 118         int sc_refcnt;
 119         u_char sc_dying;
 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 USB_DECLARE_DRIVER(ulpt);
 153
 154 USB_MATCH(ulpt)
 155 {
 156         USB_MATCH_START(ulpt, uaa);
 157         usb_interface_descriptor_t *id;
 158
 159         DPRINTFN(10,("ulpt_match\n"));
 160         if (uaa->iface == NULL)
 161                 return (UMATCH_NONE);
 162         id = usbd_get_interface_descriptor(uaa->iface);
 163         if (id != NULL &&
 164             id->bInterfaceClass == UICLASS_PRINTER &&
 165             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 166             (id->bInterfaceProtocol == UIPROTO_PRINTER_UNI ||
 167              id->bInterfaceProtocol == UIPROTO_PRINTER_BI ||
 168              id->bInterfaceProtocol == UIPROTO_PRINTER_1284))
 169                 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
 170         return (UMATCH_NONE);
 171 }
 172
 173 USB_ATTACH(ulpt)
 174 {
 175         USB_ATTACH_START(ulpt, sc, uaa);
 176         usbd_device_handle dev = uaa->device;
 177         usbd_interface_handle iface = uaa->iface;
 178         usb_interface_descriptor_t *ifcd = usbd_get_interface_descriptor(iface);
 179         usb_interface_descriptor_t *id, *iend;
 180         usb_config_descriptor_t *cdesc;
 181         usbd_status err;
 182         char devinfo[1024];
 183         usb_endpoint_descriptor_t *ed;
 184         u_int8_t epcount;
 185         int i, altno;
 186
 187         DPRINTFN(10,("ulpt_attach: sc=%p\n", sc));
 188         usbd_devinfo(dev, 0, devinfo);
 189         USB_ATTACH_SETUP;
 190         kprintf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev),
 191                devinfo, ifcd->bInterfaceClass, ifcd->bInterfaceSubClass);
 192
 193         /* XXX
 194          * Stepping through the alternate settings needs to be abstracted out.
 195          */
 196         cdesc = usbd_get_config_descriptor(dev);
 197         if (cdesc == NULL) {
 198                 kprintf("%s: failed to get configuration descriptor\n",
 199                        USBDEVNAME(sc->sc_dev));
 200                 USB_ATTACH_ERROR_RETURN;
 201         }
 202         iend = (usb_interface_descriptor_t *)
 203                    ((char *)cdesc + UGETW(cdesc->wTotalLength));
 204 #ifdef DIAGNOSTIC
 205         if (ifcd < (usb_interface_descriptor_t *)cdesc ||
 206             ifcd >= iend)
 207                 panic("ulpt: iface desc out of range");
 208 #endif
 209         /* Step through all the descriptors looking for bidir mode */
 210         for (id = ifcd, altno = 0;
 211              id < iend;
 212              id = (void *)((char *)id + id->bLength)) {
 213                 if (id->bDescriptorType == UDESC_INTERFACE &&
 214                     id->bInterfaceNumber == ifcd->bInterfaceNumber) {
 215                         if (id->bInterfaceClass == UICLASS_PRINTER &&
 216                             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 217                             (id->bInterfaceProtocol == UIPROTO_PRINTER_BI /* ||
 218                              id->bInterfaceProtocol == UIPROTO_PRINTER_1284 */))
 219                                 goto found;
 220                         altno++;
 221                 }
 222         }
 223         id = ifcd;              /* not found, use original */
 224  found:
 225         if (id != ifcd) {
 226                 /* Found a new bidir setting */
 227                 DPRINTF(("ulpt_attach: set altno = %d\n", altno));
 228                 err = usbd_set_interface(iface, altno);
 229                 if (err) {
 230                         kprintf("%s: setting alternate interface failed\n",
 231                                USBDEVNAME(sc->sc_dev));
 232                         sc->sc_dying = 1;
 233                         USB_ATTACH_ERROR_RETURN;
 234                 }
 235         }
 236
 237         epcount = 0;
 238         (void)usbd_endpoint_count(iface, &epcount);
 239
 240         sc->sc_in = -1;
 241         sc->sc_out = -1;
 242         for (i = 0; i < epcount; i++) {
 243                 ed = usbd_interface2endpoint_descriptor(iface, i);
 244                 if (ed == NULL) {
 245                         kprintf("%s: couldn't get ep %d\n",
 246                             USBDEVNAME(sc->sc_dev), i);
 247                         USB_ATTACH_ERROR_RETURN;
 248                 }
 249                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
 250                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 251                         sc->sc_in = ed->bEndpointAddress;
 252                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
 253                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 254                         sc->sc_out = ed->bEndpointAddress;
 255                 }
 256         }
 257         if (sc->sc_out == -1) {
 258                 kprintf("%s: could not find bulk out endpoint\n",
 259                     USBDEVNAME(sc->sc_dev));
 260                 sc->sc_dying = 1;
 261                 USB_ATTACH_ERROR_RETURN;
 262         }
 263
 264         if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) {
 265                 /* This device doesn't handle reading properly. */
 266                 sc->sc_in = -1;
 267         }
 268
 269         kprintf("%s: using %s-directional mode\n", USBDEVNAME(sc->sc_dev),
 270                sc->sc_in >= 0 ? "bi" : "uni");
 271
 272         DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out));
 273
 274         sc->sc_iface = iface;
 275         sc->sc_ifaceno = id->bInterfaceNumber;
 276         sc->sc_udev = dev;
 277
 278 #if 0
 279 /*
 280  * This code is disabled because for some mysterious reason it causes
 281  * printing not to work.  But only sometimes, and mostly with
 282  * UHCI and less often with OHCI.  *sigh*
 283  */
 284         {
 285         usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev);
 286         usb_device_request_t req;
 287         int len, alen;
 288
 289         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 290         req.bRequest = UR_GET_DEVICE_ID;
 291         USETW(req.wValue, cd->bConfigurationValue);
 292         USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting);
 293         USETW(req.wLength, sizeof devinfo - 1);
 294         err = usbd_do_request_flags(dev, &req, devinfo, USBD_SHORT_XFER_OK,
 295                   &alen, USBD_DEFAULT_TIMEOUT);
 296         if (err) {
 297                 kprintf("%s: cannot get device id\n", USBDEVNAME(sc->sc_dev));
 298         } else if (alen <= 2) {
 299                 kprintf("%s: empty device id, no printer connected?\n",
 300                        USBDEVNAME(sc->sc_dev));
 301         } else {
 302                 /* devinfo now contains an IEEE-1284 device ID */
 303                 len = ((devinfo[0] & 0xff) << 8) | (devinfo[1] & 0xff);
 304                 if (len > sizeof devinfo - 3)
 305                         len = sizeof devinfo - 3;
 306                 devinfo[len] = 0;
 307                 kprintf("%s: device id <", USBDEVNAME(sc->sc_dev));
 308                 ieee1284_print_id(devinfo+2);
 309                 kprintf(">\n");
 310         }
 311         }
 312 #endif
 313
 314         dev_ops_add(&ulpt_ops, -1, device_get_unit(self));
 315         make_dev(&ulpt_ops, device_get_unit(self),
 316                 UID_ROOT, GID_OPERATOR, 0644, "ulpt%d", device_get_unit(self));
 317         make_dev(&ulpt_ops,
 318                 device_get_unit(self)|ULPT_NOPRIME,
 319                 UID_ROOT, GID_OPERATOR, 0644, "unlpt%d", device_get_unit(self));
 320
 321         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
 322                            sc->sc_dev);
 323
 324         USB_ATTACH_SUCCESS_RETURN;
 325 }
 326
 327 USB_DETACH(ulpt)
 328 {
 329         USB_DETACH_START(ulpt, sc);
 330
 331         DPRINTF(("ulpt_detach: sc=%p\n", sc));
 332
 333         sc->sc_dying = 1;
 334         if (sc->sc_out_pipe != NULL)
 335                 usbd_abort_pipe(sc->sc_out_pipe);
 336         if (sc->sc_in_pipe != NULL)
 337                 usbd_abort_pipe(sc->sc_in_pipe);
 338
 339         /*
 340          * Wait for any ongoing operations to complete before we actually
 341          * close things down.
 342          */
 343
 344         crit_enter();
 345         --sc->sc_refcnt;
 346         if (sc->sc_refcnt >= 0) {
 347                 kprintf("%s: waiting for idle\n", USBDEVNAME(sc->sc_dev));
 348                 while (sc->sc_refcnt >= 0)
 349                         usb_detach_wait(sc->sc_dev);
 350                 kprintf("%s: idle wait done\n", USBDEVNAME(sc->sc_dev));
 351         }
 352         crit_exit();
 353
 354         dev_ops_remove(&ulpt_ops, -1, device_get_unit(self));
 355
 356         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
 357                            sc->sc_dev);
 358
 359         return (0);
 360 }
 361
 362 int
 363 ulpt_status(struct ulpt_softc *sc)
 364 {
 365         usb_device_request_t req;
 366         usbd_status err;
 367         u_char status;
 368
 369         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 370         req.bRequest = UR_GET_PORT_STATUS;
 371         USETW(req.wValue, 0);
 372         USETW(req.wIndex, sc->sc_ifaceno);
 373         USETW(req.wLength, 1);
 374         err = usbd_do_request(sc->sc_udev, &req, &status);
 375         DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err));
 376         if (!err)
 377                 return (status);
 378         else
 379                 return (0);
 380 }
 381
 382 void
 383 ulpt_reset(struct ulpt_softc *sc)
 384 {
 385         usb_device_request_t req;
 386
 387         DPRINTFN(1, ("ulpt_reset\n"));
 388         req.bRequest = UR_SOFT_RESET;
 389         USETW(req.wValue, 0);
 390         USETW(req.wIndex, sc->sc_ifaceno);
 391         USETW(req.wLength, 0);
 392
 393         /*
 394          * There was a mistake in the USB printer 1.0 spec that gave the
 395          * request type as UT_WRITE_CLASS_OTHER; it should have been
 396          * UT_WRITE_CLASS_INTERFACE.  Many printers use the old one,
 397          * so we try both.
 398          */
 399         req.bmRequestType = UT_WRITE_CLASS_OTHER;
 400         if (usbd_do_request(sc->sc_udev, &req, 0)) {    /* 1.0 */
 401                 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 402                 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */
 403         }
 404 }
 405
 406 static void
 407 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 408 {
 409         struct ulpt_softc *sc = priv;
 410         u_int32_t count;
 411
 412         /* Don't loop on errors or 0-length input. */
 413         usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
 414         if (status != USBD_NORMAL_COMPLETION || count == 0)
 415                 return;
 416
 417         DPRINTFN(2,("ulpt_input: got some data\n"));
 418         /* Do it again. */
 419         if (xfer == sc->sc_in_xfer1)
 420                 usbd_transfer(sc->sc_in_xfer2);
 421         else
 422                 usbd_transfer(sc->sc_in_xfer1);
 423 }
 424
 425 int ulptusein = 1;
 426
 427 /*
 428  * Reset the printer, then wait until it's selected and not busy.
 429  */
 430 int
 431 ulptopen(struct dev_open_args *ap)
 432 {
 433         cdev_t dev = ap->a_head.a_dev;
 434         u_char flags = ULPTFLAGS(dev);
 435         struct ulpt_softc *sc;
 436         usbd_status err;
 437         int spin, error;
 438
 439         USB_GET_SC_OPEN(ulpt, ULPTUNIT(dev), sc);
 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", USBDEVNAME(sc->sc_dev));
 558         else if (new & LPS_NOPAPER)
 559                 log(LOG_NOTICE, "%s: out of paper\n", USBDEVNAME(sc->sc_dev));
 560         else if (new & LPS_NERR)
 561                 log(LOG_NOTICE, "%s: output error\n", USBDEVNAME(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         USB_GET_SC(ulpt, ULPTUNIT(dev), sc);
 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 = min(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         USB_GET_SC(ulpt, ULPTUNIT(dev), sc);
 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 #if 0
 672 /* XXX This does not belong here. */
 673 /*
 674  * Print select parts of an IEEE 1284 device ID.
 675  */
 676 void
 677 ieee1284_print_id(char *str)
 678 {
 679         char *p, *q;
 680
 681         for (p = str-1; p; p = strchr(p, ';')) {
 682                 p++;            /* skip ';' */
 683                 if (strncmp(p, "MFG:", 4) == 0 ||
 684                     strncmp(p, "MANUFACTURER:", 14) == 0 ||
 685                     strncmp(p, "MDL:", 4) == 0 ||
 686                     strncmp(p, "MODEL:", 6) == 0) {
 687                         q = strchr(p, ';');
 688                         if (q)
 689                                 kprintf("%.*s", (int)(q - p + 1), p);
 690                 }
 691         }
 692 }
 693 #endif
 694
 695 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, 0);
 696