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 1.22 2007/07/02 23:52:05 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) kprintf x
  75 #define DPRINTFN(n,x)   if (ulptdebug>(n)) kprintf 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         device_t 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 static device_probe_t ulpt_match;
 153 static device_attach_t ulpt_attach;
 154 static device_detach_t ulpt_detach;
 155
 156 static devclass_t ulpt_devclass;
 157
 158 static kobj_method_t ulpt_methods[] = {
 159         DEVMETHOD(device_probe, ulpt_match),
 160         DEVMETHOD(device_attach, ulpt_attach),
 161         DEVMETHOD(device_detach, ulpt_detach),
 162         {0,0}
 163 };
 164
 165 static driver_t ulpt_driver = {
 166         "ulpt",
 167         ulpt_methods,
 168         sizeof(struct ulpt_softc)
 169 };
 170
 171 MODULE_DEPEND(ulpt, usb, 1, 1, 1);
 172
 173 static int
 174 ulpt_match(device_t self)
 175 {
 176         struct usb_attach_arg *uaa = device_get_ivars(self);
 177         usb_interface_descriptor_t *id;
 178
 179         DPRINTFN(10,("ulpt_match\n"));
 180         if (uaa->iface == NULL)
 181                 return (UMATCH_NONE);
 182         id = usbd_get_interface_descriptor(uaa->iface);
 183         if (id != NULL &&
 184             id->bInterfaceClass == UICLASS_PRINTER &&
 185             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 186             (id->bInterfaceProtocol == UIPROTO_PRINTER_UNI ||
 187              id->bInterfaceProtocol == UIPROTO_PRINTER_BI ||
 188              id->bInterfaceProtocol == UIPROTO_PRINTER_1284))
 189                 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
 190         return (UMATCH_NONE);
 191 }
 192
 193 static int
 194 ulpt_attach(device_t self)
 195 {
 196         struct ulpt_softc *sc = device_get_softc(self);
 197         struct usb_attach_arg *uaa = device_get_ivars(self);
 198         usbd_device_handle dev = uaa->device;
 199         usbd_interface_handle iface = uaa->iface;
 200         usb_interface_descriptor_t *ifcd = usbd_get_interface_descriptor(iface);
 201         usb_interface_descriptor_t *id, *iend;
 202         usb_config_descriptor_t *cdesc;
 203         usbd_status err;
 204         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         sc->sc_dev = self;
 212         device_set_desc_copy(self, devinfo);
 213         kprintf("%s: %s, iclass %d/%d\n", device_get_nameunit(sc->sc_dev),
 214                devinfo, ifcd->bInterfaceClass, ifcd->bInterfaceSubClass);
 215
 216         /* XXX
 217          * Stepping through the alternate settings needs to be abstracted out.
 218          */
 219         cdesc = usbd_get_config_descriptor(dev);
 220         if (cdesc == NULL) {
 221                 kprintf("%s: failed to get configuration descriptor\n",
 222                        device_get_nameunit(sc->sc_dev));
 223                 return ENXIO;
 224         }
 225         iend = (usb_interface_descriptor_t *)
 226                    ((char *)cdesc + UGETW(cdesc->wTotalLength));
 227 #ifdef DIAGNOSTIC
 228         if (ifcd < (usb_interface_descriptor_t *)cdesc ||
 229             ifcd >= iend)
 230                 panic("ulpt: iface desc out of range");
 231 #endif
 232         /* Step through all the descriptors looking for bidir mode */
 233         for (id = ifcd, altno = 0;
 234              id < iend;
 235              id = (void *)((char *)id + id->bLength)) {
 236                 if (id->bDescriptorType == UDESC_INTERFACE &&
 237                     id->bInterfaceNumber == ifcd->bInterfaceNumber) {
 238                         if (id->bInterfaceClass == UICLASS_PRINTER &&
 239                             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 240                             (id->bInterfaceProtocol == UIPROTO_PRINTER_BI /* ||
 241                              id->bInterfaceProtocol == UIPROTO_PRINTER_1284 */))
 242                                 goto found;
 243                         altno++;
 244                 }
 245         }
 246         id = ifcd;              /* not found, use original */
 247  found:
 248         if (id != ifcd) {
 249                 /* Found a new bidir setting */
 250                 DPRINTF(("ulpt_attach: set altno = %d\n", altno));
 251                 err = usbd_set_interface(iface, altno);
 252                 if (err) {
 253                         kprintf("%s: setting alternate interface failed\n",
 254                                device_get_nameunit(sc->sc_dev));
 255                         sc->sc_dying = 1;
 256                         return ENXIO;
 257                 }
 258         }
 259
 260         epcount = 0;
 261         (void)usbd_endpoint_count(iface, &epcount);
 262
 263         sc->sc_in = -1;
 264         sc->sc_out = -1;
 265         for (i = 0; i < epcount; i++) {
 266                 ed = usbd_interface2endpoint_descriptor(iface, i);
 267                 if (ed == NULL) {
 268                         kprintf("%s: couldn't get ep %d\n",
 269                             device_get_nameunit(sc->sc_dev), i);
 270                         return ENXIO;
 271                 }
 272                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
 273                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 274                         sc->sc_in = ed->bEndpointAddress;
 275                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
 276                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 277                         sc->sc_out = ed->bEndpointAddress;
 278                 }
 279         }
 280         if (sc->sc_out == -1) {
 281                 kprintf("%s: could not find bulk out endpoint\n",
 282                     device_get_nameunit(sc->sc_dev));
 283                 sc->sc_dying = 1;
 284                 return ENXIO;
 285         }
 286
 287         if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) {
 288                 /* This device doesn't handle reading properly. */
 289                 sc->sc_in = -1;
 290         }
 291
 292         kprintf("%s: using %s-directional mode\n", device_get_nameunit(sc->sc_dev),
 293                sc->sc_in >= 0 ? "bi" : "uni");
 294
 295         DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out));
 296
 297         sc->sc_iface = iface;
 298         sc->sc_ifaceno = id->bInterfaceNumber;
 299         sc->sc_udev = dev;
 300
 301 #if 0
 302 /*
 303  * This code is disabled because for some mysterious reason it causes
 304  * printing not to work.  But only sometimes, and mostly with
 305  * UHCI and less often with OHCI.  *sigh*
 306  */
 307         {
 308         usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev);
 309         usb_device_request_t req;
 310         int len, alen;
 311
 312         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 313         req.bRequest = UR_GET_DEVICE_ID;
 314         USETW(req.wValue, cd->bConfigurationValue);
 315         USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting);
 316         USETW(req.wLength, sizeof devinfo - 1);
 317         err = usbd_do_request_flags(dev, &req, devinfo, USBD_SHORT_XFER_OK,
 318                   &alen, USBD_DEFAULT_TIMEOUT);
 319         if (err) {
 320                 kprintf("%s: cannot get device id\n", device_get_nameunit(sc->sc_dev));
 321         } else if (alen <= 2) {
 322                 kprintf("%s: empty device id, no printer connected?\n",
 323                        device_get_nameunit(sc->sc_dev));
 324         } else {
 325                 /* devinfo now contains an IEEE-1284 device ID */
 326                 len = ((devinfo[0] & 0xff) << 8) | (devinfo[1] & 0xff);
 327                 if (len > sizeof devinfo - 3)
 328                         len = sizeof devinfo - 3;
 329                 devinfo[len] = 0;
 330                 kprintf("%s: device id <", device_get_nameunit(sc->sc_dev));
 331                 ieee1284_print_id(devinfo+2);
 332                 kprintf(">\n");
 333         }
 334         }
 335 #endif
 336
 337         dev_ops_add(&ulpt_ops, -1, device_get_unit(self));
 338         make_dev(&ulpt_ops, device_get_unit(self),
 339                 UID_ROOT, GID_OPERATOR, 0644, "ulpt%d", device_get_unit(self));
 340         make_dev(&ulpt_ops,
 341                 device_get_unit(self)|ULPT_NOPRIME,
 342                 UID_ROOT, GID_OPERATOR, 0644, "unlpt%d", device_get_unit(self));
 343
 344         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
 345                            sc->sc_dev);
 346
 347         return 0;
 348 }
 349
 350 static int
 351 ulpt_detach(device_t self)
 352 {
 353         struct ulpt_softc *sc = device_get_softc(self);
 354
 355         DPRINTF(("ulpt_detach: sc=%p\n", sc));
 356
 357         sc->sc_dying = 1;
 358         if (sc->sc_out_pipe != NULL)
 359                 usbd_abort_pipe(sc->sc_out_pipe);
 360         if (sc->sc_in_pipe != NULL)
 361                 usbd_abort_pipe(sc->sc_in_pipe);
 362
 363         /*
 364          * Wait for any ongoing operations to complete before we actually
 365          * close things down.
 366          */
 367
 368         crit_enter();
 369         --sc->sc_refcnt;
 370         if (sc->sc_refcnt >= 0) {
 371                 kprintf("%s: waiting for idle\n", device_get_nameunit(sc->sc_dev));
 372                 while (sc->sc_refcnt >= 0)
 373                         usb_detach_wait(sc->sc_dev);
 374                 kprintf("%s: idle wait done\n", device_get_nameunit(sc->sc_dev));
 375         }
 376         crit_exit();
 377
 378         dev_ops_remove(&ulpt_ops, -1, device_get_unit(self));
 379
 380         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
 381                            sc->sc_dev);
 382
 383         return (0);
 384 }
 385
 386 int
 387 ulpt_status(struct ulpt_softc *sc)
 388 {
 389         usb_device_request_t req;
 390         usbd_status err;
 391         u_char status;
 392
 393         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 394         req.bRequest = UR_GET_PORT_STATUS;
 395         USETW(req.wValue, 0);
 396         USETW(req.wIndex, sc->sc_ifaceno);
 397         USETW(req.wLength, 1);
 398         err = usbd_do_request(sc->sc_udev, &req, &status);
 399         DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err));
 400         if (!err)
 401                 return (status);
 402         else
 403                 return (0);
 404 }
 405
 406 void
 407 ulpt_reset(struct ulpt_softc *sc)
 408 {
 409         usb_device_request_t req;
 410
 411         DPRINTFN(1, ("ulpt_reset\n"));
 412         req.bRequest = UR_SOFT_RESET;
 413         USETW(req.wValue, 0);
 414         USETW(req.wIndex, sc->sc_ifaceno);
 415         USETW(req.wLength, 0);
 416
 417         /*
 418          * There was a mistake in the USB printer 1.0 spec that gave the
 419          * request type as UT_WRITE_CLASS_OTHER; it should have been
 420          * UT_WRITE_CLASS_INTERFACE.  Many printers use the old one,
 421          * so we try both.
 422          */
 423         req.bmRequestType = UT_WRITE_CLASS_OTHER;
 424         if (usbd_do_request(sc->sc_udev, &req, 0)) {    /* 1.0 */
 425                 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 426                 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */
 427         }
 428 }
 429
 430 static void
 431 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 432 {
 433         struct ulpt_softc *sc = priv;
 434         u_int32_t count;
 435
 436         /* Don't loop on errors or 0-length input. */
 437         usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
 438         if (status != USBD_NORMAL_COMPLETION || count == 0)
 439                 return;
 440
 441         DPRINTFN(2,("ulpt_input: got some data\n"));
 442         /* Do it again. */
 443         if (xfer == sc->sc_in_xfer1)
 444                 usbd_transfer(sc->sc_in_xfer2);
 445         else
 446                 usbd_transfer(sc->sc_in_xfer1);
 447 }
 448
 449 int ulptusein = 1;
 450
 451 /*
 452  * Reset the printer, then wait until it's selected and not busy.
 453  */
 454 int
 455 ulptopen(struct dev_open_args *ap)
 456 {
 457         cdev_t dev = ap->a_head.a_dev;
 458         u_char flags = ULPTFLAGS(dev);
 459         struct ulpt_softc *sc;
 460         usbd_status err;
 461         int spin, error;
 462
 463         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 464         if (sc == NULL)
 465                 return (ENXIO);
 466
 467         if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying)
 468                 return (ENXIO);
 469
 470         if (sc->sc_state)
 471                 return (EBUSY);
 472
 473         sc->sc_state = ULPT_INIT;
 474         sc->sc_flags = flags;
 475         DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags));
 476
 477 #if defined(USB_DEBUG)
 478         /* Ignoring these flags might not be a good idea */
 479         if ((flags & ~ULPT_NOPRIME) != 0)
 480                 kprintf("ulptopen: flags ignored: %b\n", flags,
 481                         "\20\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS");
 482 #endif
 483
 484         error = 0;
 485         sc->sc_refcnt++;
 486
 487         if ((flags & ULPT_NOPRIME) == 0) {
 488                 ulpt_reset(sc);
 489                 if (sc->sc_dying) {
 490                         error = ENXIO;
 491                         sc->sc_state = 0;
 492                         goto done;
 493                 }
 494         }
 495
 496         for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) {
 497                 DPRINTF(("ulpt_open: waiting a while\n"));
 498                 if (spin >= TIMEOUT) {
 499                         error = EBUSY;
 500                         sc->sc_state = 0;
 501                         goto done;
 502                 }
 503
 504                 /* wait 1/4 second, give up if we get a signal */
 505                 error = tsleep((caddr_t)sc, PCATCH, "ulptop", STEP);
 506                 if (error != EWOULDBLOCK) {
 507                         sc->sc_state = 0;
 508                         goto done;
 509                 }
 510
 511                 if (sc->sc_dying) {
 512                         error = ENXIO;
 513                         sc->sc_state = 0;
 514                         goto done;
 515                 }
 516         }
 517
 518         err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe);
 519         if (err) {
 520                 sc->sc_state = 0;
 521                 error = EIO;
 522                 goto done;
 523         }
 524
 525         if (ulptusein && sc->sc_in != -1) {
 526                 DPRINTF(("ulpt_open: open input pipe\n"));
 527                 err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe);
 528                 if (err) {
 529                         error = EIO;
 530                         usbd_close_pipe(sc->sc_out_pipe);
 531                         sc->sc_out_pipe = NULL;
 532                         sc->sc_state = 0;
 533                         goto done;
 534                 }
 535                 sc->sc_in_xfer1 = usbd_alloc_xfer(sc->sc_udev);
 536                 sc->sc_in_xfer2 = usbd_alloc_xfer(sc->sc_udev);
 537                 if (sc->sc_in_xfer1 == NULL || sc->sc_in_xfer2 == NULL) {
 538                         error = ENOMEM;
 539                         if (sc->sc_in_xfer1 != NULL) {
 540                                 usbd_free_xfer(sc->sc_in_xfer1);
 541                                 sc->sc_in_xfer1 = NULL;
 542                         }
 543                         if (sc->sc_in_xfer2 != NULL) {
 544                                 usbd_free_xfer(sc->sc_in_xfer2);
 545                                 sc->sc_in_xfer2 = NULL;
 546                         }
 547                         usbd_close_pipe(sc->sc_out_pipe);
 548                         sc->sc_out_pipe = NULL;
 549                         usbd_close_pipe(sc->sc_in_pipe);
 550                         sc->sc_in_pipe = NULL;
 551                         sc->sc_state = 0;
 552                         goto done;
 553                 }
 554                 usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc,
 555                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 556                     USBD_NO_TIMEOUT, ulpt_input);
 557                 usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc,
 558                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 559                     USBD_NO_TIMEOUT, ulpt_input);
 560                 usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */
 561         }
 562
 563         sc->sc_state = ULPT_OPEN;
 564
 565 done:
 566         if (--sc->sc_refcnt < 0)
 567                 usb_detach_wakeup(sc->sc_dev);
 568
 569         DPRINTF(("ulptopen: done, error=%d\n", error));
 570         return (error);
 571 }
 572
 573 int
 574 ulpt_statusmsg(u_char status, struct ulpt_softc *sc)
 575 {
 576         u_char new;
 577
 578         status = (status ^ LPS_INVERT) & LPS_MASK;
 579         new = status & ~sc->sc_laststatus;
 580         sc->sc_laststatus = status;
 581
 582         if (new & LPS_SELECT)
 583                 log(LOG_NOTICE, "%s: offline\n", device_get_nameunit(sc->sc_dev));
 584         else if (new & LPS_NOPAPER)
 585                 log(LOG_NOTICE, "%s: out of paper\n", device_get_nameunit(sc->sc_dev));
 586         else if (new & LPS_NERR)
 587                 log(LOG_NOTICE, "%s: output error\n", device_get_nameunit(sc->sc_dev));
 588
 589         return (status);
 590 }
 591
 592 int
 593 ulptclose(struct dev_close_args *ap)
 594 {
 595         cdev_t dev = ap->a_head.a_dev;
 596         struct ulpt_softc *sc;
 597
 598         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 599
 600         if (sc->sc_state != ULPT_OPEN)
 601                 /* We are being forced to close before the open completed. */
 602                 return (0);
 603
 604         if (sc->sc_out_pipe != NULL) {
 605                 usbd_close_pipe(sc->sc_out_pipe);
 606                 sc->sc_out_pipe = NULL;
 607         }
 608         if (sc->sc_in_pipe != NULL) {
 609                 usbd_abort_pipe(sc->sc_in_pipe);
 610                 usbd_close_pipe(sc->sc_in_pipe);
 611                 sc->sc_in_pipe = NULL;
 612                 if (sc->sc_in_xfer1 != NULL) {
 613                         usbd_free_xfer(sc->sc_in_xfer1);
 614                         sc->sc_in_xfer1 = NULL;
 615                 }
 616                 if (sc->sc_in_xfer2 != NULL) {
 617                         usbd_free_xfer(sc->sc_in_xfer2);
 618                         sc->sc_in_xfer2 = NULL;
 619                 }
 620         }
 621
 622         sc->sc_state = 0;
 623
 624         DPRINTF(("ulptclose: closed\n"));
 625         return (0);
 626 }
 627
 628 int
 629 ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags)
 630 {
 631         u_int32_t n;
 632         int error = 0;
 633         void *bufp;
 634         usbd_xfer_handle xfer;
 635         usbd_status err;
 636
 637         DPRINTF(("ulptwrite\n"));
 638         xfer = usbd_alloc_xfer(sc->sc_udev);
 639         if (xfer == NULL)
 640                 return (ENOMEM);
 641         bufp = usbd_alloc_buffer(xfer, ULPT_BSIZE);
 642         if (bufp == NULL) {
 643                 usbd_free_xfer(xfer);
 644                 return (ENOMEM);
 645         }
 646         while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) {
 647                 ulpt_statusmsg(ulpt_status(sc), sc);
 648                 error = uiomove(bufp, n, uio);
 649                 if (error)
 650                         break;
 651                 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n));
 652                 err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY,
 653                           USBD_NO_TIMEOUT, bufp, &n, "ulptwr");
 654                 if (err) {
 655                         DPRINTF(("ulptwrite: error=%d\n", err));
 656                         error = EIO;
 657                         break;
 658                 }
 659         }
 660         usbd_free_xfer(xfer);
 661
 662         return (error);
 663 }
 664
 665 int
 666 ulptwrite(struct dev_write_args *ap)
 667 {
 668         cdev_t dev = ap->a_head.a_dev;
 669         struct ulpt_softc *sc;
 670         int error;
 671
 672         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 673
 674         if (sc->sc_dying)
 675                 return (EIO);
 676
 677         sc->sc_refcnt++;
 678         error = ulpt_do_write(sc, ap->a_uio, ap->a_ioflag);
 679         if (--sc->sc_refcnt < 0)
 680                 usb_detach_wakeup(sc->sc_dev);
 681         return (error);
 682 }
 683
 684 int
 685 ulptioctl(struct dev_ioctl_args *ap)
 686 {
 687         int error = 0;
 688
 689         switch (ap->a_cmd) {
 690         default:
 691                 error = ENODEV;
 692         }
 693
 694         return (error);
 695 }
 696
 697 #if 0
 698 /* XXX This does not belong here. */
 699 /*
 700  * Print select parts of an IEEE 1284 device ID.
 701  */
 702 void
 703 ieee1284_print_id(char *str)
 704 {
 705         char *p, *q;
 706
 707         for (p = str-1; p; p = strchr(p, ';')) {
 708                 p++;            /* skip ';' */
 709                 if (strncmp(p, "MFG:", 4) == 0 ||
 710                     strncmp(p, "MANUFACTURER:", 14) == 0 ||
 711                     strncmp(p, "MDL:", 4) == 0 ||
 712                     strncmp(p, "MODEL:", 6) == 0) {
 713                         q = strchr(p, ';');
 714                         if (q)
 715                                 kprintf("%.*s", (int)(q - p + 1), p);
 716                 }
 717         }
 718 }
 719 #endif
 720
 721 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, 0);
 722