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 1.21 2007/07/02 06:43:31 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 USB_DECLARE_DRIVER(ulpt);
 153
 154 static int
 155 ulpt_match(device_t self)
 156 {
 157         struct usb_attach_arg *uaa = device_get_ivars(self);
 158         usb_interface_descriptor_t *id;
 159
 160         DPRINTFN(10,("ulpt_match\n"));
 161         if (uaa->iface == NULL)
 162                 return (UMATCH_NONE);
 163         id = usbd_get_interface_descriptor(uaa->iface);
 164         if (id != NULL &&
 165             id->bInterfaceClass == UICLASS_PRINTER &&
 166             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 167             (id->bInterfaceProtocol == UIPROTO_PRINTER_UNI ||
 168              id->bInterfaceProtocol == UIPROTO_PRINTER_BI ||
 169              id->bInterfaceProtocol == UIPROTO_PRINTER_1284))
 170                 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
 171         return (UMATCH_NONE);
 172 }
 173
 174 static int
 175 ulpt_attach(device_t self)
 176 {
 177         struct ulpt_softc *sc = device_get_softc(self);
 178         struct usb_attach_arg *uaa = device_get_ivars(self);
 179         usbd_device_handle dev = uaa->device;
 180         usbd_interface_handle iface = uaa->iface;
 181         usb_interface_descriptor_t *ifcd = usbd_get_interface_descriptor(iface);
 182         usb_interface_descriptor_t *id, *iend;
 183         usb_config_descriptor_t *cdesc;
 184         usbd_status err;
 185         char devinfo[1024];
 186         usb_endpoint_descriptor_t *ed;
 187         u_int8_t epcount;
 188         int i, altno;
 189
 190         DPRINTFN(10,("ulpt_attach: sc=%p\n", sc));
 191         usbd_devinfo(dev, 0, devinfo);
 192         sc->sc_dev = self;
 193         device_set_desc_copy(self, devinfo);
 194         kprintf("%s: %s, iclass %d/%d\n", device_get_nameunit(sc->sc_dev),
 195                devinfo, ifcd->bInterfaceClass, ifcd->bInterfaceSubClass);
 196
 197         /* XXX
 198          * Stepping through the alternate settings needs to be abstracted out.
 199          */
 200         cdesc = usbd_get_config_descriptor(dev);
 201         if (cdesc == NULL) {
 202                 kprintf("%s: failed to get configuration descriptor\n",
 203                        device_get_nameunit(sc->sc_dev));
 204                 return ENXIO;
 205         }
 206         iend = (usb_interface_descriptor_t *)
 207                    ((char *)cdesc + UGETW(cdesc->wTotalLength));
 208 #ifdef DIAGNOSTIC
 209         if (ifcd < (usb_interface_descriptor_t *)cdesc ||
 210             ifcd >= iend)
 211                 panic("ulpt: iface desc out of range");
 212 #endif
 213         /* Step through all the descriptors looking for bidir mode */
 214         for (id = ifcd, altno = 0;
 215              id < iend;
 216              id = (void *)((char *)id + id->bLength)) {
 217                 if (id->bDescriptorType == UDESC_INTERFACE &&
 218                     id->bInterfaceNumber == ifcd->bInterfaceNumber) {
 219                         if (id->bInterfaceClass == UICLASS_PRINTER &&
 220                             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 221                             (id->bInterfaceProtocol == UIPROTO_PRINTER_BI /* ||
 222                              id->bInterfaceProtocol == UIPROTO_PRINTER_1284 */))
 223                                 goto found;
 224                         altno++;
 225                 }
 226         }
 227         id = ifcd;              /* not found, use original */
 228  found:
 229         if (id != ifcd) {
 230                 /* Found a new bidir setting */
 231                 DPRINTF(("ulpt_attach: set altno = %d\n", altno));
 232                 err = usbd_set_interface(iface, altno);
 233                 if (err) {
 234                         kprintf("%s: setting alternate interface failed\n",
 235                                device_get_nameunit(sc->sc_dev));
 236                         sc->sc_dying = 1;
 237                         return ENXIO;
 238                 }
 239         }
 240
 241         epcount = 0;
 242         (void)usbd_endpoint_count(iface, &epcount);
 243
 244         sc->sc_in = -1;
 245         sc->sc_out = -1;
 246         for (i = 0; i < epcount; i++) {
 247                 ed = usbd_interface2endpoint_descriptor(iface, i);
 248                 if (ed == NULL) {
 249                         kprintf("%s: couldn't get ep %d\n",
 250                             device_get_nameunit(sc->sc_dev), i);
 251                         return ENXIO;
 252                 }
 253                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
 254                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 255                         sc->sc_in = ed->bEndpointAddress;
 256                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
 257                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 258                         sc->sc_out = ed->bEndpointAddress;
 259                 }
 260         }
 261         if (sc->sc_out == -1) {
 262                 kprintf("%s: could not find bulk out endpoint\n",
 263                     device_get_nameunit(sc->sc_dev));
 264                 sc->sc_dying = 1;
 265                 return ENXIO;
 266         }
 267
 268         if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) {
 269                 /* This device doesn't handle reading properly. */
 270                 sc->sc_in = -1;
 271         }
 272
 273         kprintf("%s: using %s-directional mode\n", device_get_nameunit(sc->sc_dev),
 274                sc->sc_in >= 0 ? "bi" : "uni");
 275
 276         DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out));
 277
 278         sc->sc_iface = iface;
 279         sc->sc_ifaceno = id->bInterfaceNumber;
 280         sc->sc_udev = dev;
 281
 282 #if 0
 283 /*
 284  * This code is disabled because for some mysterious reason it causes
 285  * printing not to work.  But only sometimes, and mostly with
 286  * UHCI and less often with OHCI.  *sigh*
 287  */
 288         {
 289         usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev);
 290         usb_device_request_t req;
 291         int len, alen;
 292
 293         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 294         req.bRequest = UR_GET_DEVICE_ID;
 295         USETW(req.wValue, cd->bConfigurationValue);
 296         USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting);
 297         USETW(req.wLength, sizeof devinfo - 1);
 298         err = usbd_do_request_flags(dev, &req, devinfo, USBD_SHORT_XFER_OK,
 299                   &alen, USBD_DEFAULT_TIMEOUT);
 300         if (err) {
 301                 kprintf("%s: cannot get device id\n", device_get_nameunit(sc->sc_dev));
 302         } else if (alen <= 2) {
 303                 kprintf("%s: empty device id, no printer connected?\n",
 304                        device_get_nameunit(sc->sc_dev));
 305         } else {
 306                 /* devinfo now contains an IEEE-1284 device ID */
 307                 len = ((devinfo[0] & 0xff) << 8) | (devinfo[1] & 0xff);
 308                 if (len > sizeof devinfo - 3)
 309                         len = sizeof devinfo - 3;
 310                 devinfo[len] = 0;
 311                 kprintf("%s: device id <", device_get_nameunit(sc->sc_dev));
 312                 ieee1284_print_id(devinfo+2);
 313                 kprintf(">\n");
 314         }
 315         }
 316 #endif
 317
 318         dev_ops_add(&ulpt_ops, -1, device_get_unit(self));
 319         make_dev(&ulpt_ops, device_get_unit(self),
 320                 UID_ROOT, GID_OPERATOR, 0644, "ulpt%d", device_get_unit(self));
 321         make_dev(&ulpt_ops,
 322                 device_get_unit(self)|ULPT_NOPRIME,
 323                 UID_ROOT, GID_OPERATOR, 0644, "unlpt%d", device_get_unit(self));
 324
 325         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
 326                            sc->sc_dev);
 327
 328         return 0;
 329 }
 330
 331 static int
 332 ulpt_detach(device_t self)
 333 {
 334         struct ulpt_softc *sc = device_get_softc(self);
 335
 336         DPRINTF(("ulpt_detach: sc=%p\n", sc));
 337
 338         sc->sc_dying = 1;
 339         if (sc->sc_out_pipe != NULL)
 340                 usbd_abort_pipe(sc->sc_out_pipe);
 341         if (sc->sc_in_pipe != NULL)
 342                 usbd_abort_pipe(sc->sc_in_pipe);
 343
 344         /*
 345          * Wait for any ongoing operations to complete before we actually
 346          * close things down.
 347          */
 348
 349         crit_enter();
 350         --sc->sc_refcnt;
 351         if (sc->sc_refcnt >= 0) {
 352                 kprintf("%s: waiting for idle\n", device_get_nameunit(sc->sc_dev));
 353                 while (sc->sc_refcnt >= 0)
 354                         usb_detach_wait(sc->sc_dev);
 355                 kprintf("%s: idle wait done\n", device_get_nameunit(sc->sc_dev));
 356         }
 357         crit_exit();
 358
 359         dev_ops_remove(&ulpt_ops, -1, device_get_unit(self));
 360
 361         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
 362                            sc->sc_dev);
 363
 364         return (0);
 365 }
 366
 367 int
 368 ulpt_status(struct ulpt_softc *sc)
 369 {
 370         usb_device_request_t req;
 371         usbd_status err;
 372         u_char status;
 373
 374         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 375         req.bRequest = UR_GET_PORT_STATUS;
 376         USETW(req.wValue, 0);
 377         USETW(req.wIndex, sc->sc_ifaceno);
 378         USETW(req.wLength, 1);
 379         err = usbd_do_request(sc->sc_udev, &req, &status);
 380         DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err));
 381         if (!err)
 382                 return (status);
 383         else
 384                 return (0);
 385 }
 386
 387 void
 388 ulpt_reset(struct ulpt_softc *sc)
 389 {
 390         usb_device_request_t req;
 391
 392         DPRINTFN(1, ("ulpt_reset\n"));
 393         req.bRequest = UR_SOFT_RESET;
 394         USETW(req.wValue, 0);
 395         USETW(req.wIndex, sc->sc_ifaceno);
 396         USETW(req.wLength, 0);
 397
 398         /*
 399          * There was a mistake in the USB printer 1.0 spec that gave the
 400          * request type as UT_WRITE_CLASS_OTHER; it should have been
 401          * UT_WRITE_CLASS_INTERFACE.  Many printers use the old one,
 402          * so we try both.
 403          */
 404         req.bmRequestType = UT_WRITE_CLASS_OTHER;
 405         if (usbd_do_request(sc->sc_udev, &req, 0)) {    /* 1.0 */
 406                 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 407                 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */
 408         }
 409 }
 410
 411 static void
 412 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 413 {
 414         struct ulpt_softc *sc = priv;
 415         u_int32_t count;
 416
 417         /* Don't loop on errors or 0-length input. */
 418         usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
 419         if (status != USBD_NORMAL_COMPLETION || count == 0)
 420                 return;
 421
 422         DPRINTFN(2,("ulpt_input: got some data\n"));
 423         /* Do it again. */
 424         if (xfer == sc->sc_in_xfer1)
 425                 usbd_transfer(sc->sc_in_xfer2);
 426         else
 427                 usbd_transfer(sc->sc_in_xfer1);
 428 }
 429
 430 int ulptusein = 1;
 431
 432 /*
 433  * Reset the printer, then wait until it's selected and not busy.
 434  */
 435 int
 436 ulptopen(struct dev_open_args *ap)
 437 {
 438         cdev_t dev = ap->a_head.a_dev;
 439         u_char flags = ULPTFLAGS(dev);
 440         struct ulpt_softc *sc;
 441         usbd_status err;
 442         int spin, error;
 443
 444         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 445         if (sc == NULL)
 446                 return (ENXIO);
 447
 448         if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying)
 449                 return (ENXIO);
 450
 451         if (sc->sc_state)
 452                 return (EBUSY);
 453
 454         sc->sc_state = ULPT_INIT;
 455         sc->sc_flags = flags;
 456         DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags));
 457
 458 #if defined(USB_DEBUG)
 459         /* Ignoring these flags might not be a good idea */
 460         if ((flags & ~ULPT_NOPRIME) != 0)
 461                 kprintf("ulptopen: flags ignored: %b\n", flags,
 462                         "\20\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS");
 463 #endif
 464
 465         error = 0;
 466         sc->sc_refcnt++;
 467
 468         if ((flags & ULPT_NOPRIME) == 0) {
 469                 ulpt_reset(sc);
 470                 if (sc->sc_dying) {
 471                         error = ENXIO;
 472                         sc->sc_state = 0;
 473                         goto done;
 474                 }
 475         }
 476
 477         for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) {
 478                 DPRINTF(("ulpt_open: waiting a while\n"));
 479                 if (spin >= TIMEOUT) {
 480                         error = EBUSY;
 481                         sc->sc_state = 0;
 482                         goto done;
 483                 }
 484
 485                 /* wait 1/4 second, give up if we get a signal */
 486                 error = tsleep((caddr_t)sc, PCATCH, "ulptop", STEP);
 487                 if (error != EWOULDBLOCK) {
 488                         sc->sc_state = 0;
 489                         goto done;
 490                 }
 491
 492                 if (sc->sc_dying) {
 493                         error = ENXIO;
 494                         sc->sc_state = 0;
 495                         goto done;
 496                 }
 497         }
 498
 499         err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe);
 500         if (err) {
 501                 sc->sc_state = 0;
 502                 error = EIO;
 503                 goto done;
 504         }
 505
 506         if (ulptusein && sc->sc_in != -1) {
 507                 DPRINTF(("ulpt_open: open input pipe\n"));
 508                 err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe);
 509                 if (err) {
 510                         error = EIO;
 511                         usbd_close_pipe(sc->sc_out_pipe);
 512                         sc->sc_out_pipe = NULL;
 513                         sc->sc_state = 0;
 514                         goto done;
 515                 }
 516                 sc->sc_in_xfer1 = usbd_alloc_xfer(sc->sc_udev);
 517                 sc->sc_in_xfer2 = usbd_alloc_xfer(sc->sc_udev);
 518                 if (sc->sc_in_xfer1 == NULL || sc->sc_in_xfer2 == NULL) {
 519                         error = ENOMEM;
 520                         if (sc->sc_in_xfer1 != NULL) {
 521                                 usbd_free_xfer(sc->sc_in_xfer1);
 522                                 sc->sc_in_xfer1 = NULL;
 523                         }
 524                         if (sc->sc_in_xfer2 != NULL) {
 525                                 usbd_free_xfer(sc->sc_in_xfer2);
 526                                 sc->sc_in_xfer2 = NULL;
 527                         }
 528                         usbd_close_pipe(sc->sc_out_pipe);
 529                         sc->sc_out_pipe = NULL;
 530                         usbd_close_pipe(sc->sc_in_pipe);
 531                         sc->sc_in_pipe = NULL;
 532                         sc->sc_state = 0;
 533                         goto done;
 534                 }
 535                 usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc,
 536                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 537                     USBD_NO_TIMEOUT, ulpt_input);
 538                 usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc,
 539                     sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK,
 540                     USBD_NO_TIMEOUT, ulpt_input);
 541                 usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */
 542         }
 543
 544         sc->sc_state = ULPT_OPEN;
 545
 546 done:
 547         if (--sc->sc_refcnt < 0)
 548                 usb_detach_wakeup(sc->sc_dev);
 549
 550         DPRINTF(("ulptopen: done, error=%d\n", error));
 551         return (error);
 552 }
 553
 554 int
 555 ulpt_statusmsg(u_char status, struct ulpt_softc *sc)
 556 {
 557         u_char new;
 558
 559         status = (status ^ LPS_INVERT) & LPS_MASK;
 560         new = status & ~sc->sc_laststatus;
 561         sc->sc_laststatus = status;
 562
 563         if (new & LPS_SELECT)
 564                 log(LOG_NOTICE, "%s: offline\n", device_get_nameunit(sc->sc_dev));
 565         else if (new & LPS_NOPAPER)
 566                 log(LOG_NOTICE, "%s: out of paper\n", device_get_nameunit(sc->sc_dev));
 567         else if (new & LPS_NERR)
 568                 log(LOG_NOTICE, "%s: output error\n", device_get_nameunit(sc->sc_dev));
 569
 570         return (status);
 571 }
 572
 573 int
 574 ulptclose(struct dev_close_args *ap)
 575 {
 576         cdev_t dev = ap->a_head.a_dev;
 577         struct ulpt_softc *sc;
 578
 579         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 580
 581         if (sc->sc_state != ULPT_OPEN)
 582                 /* We are being forced to close before the open completed. */
 583                 return (0);
 584
 585         if (sc->sc_out_pipe != NULL) {
 586                 usbd_close_pipe(sc->sc_out_pipe);
 587                 sc->sc_out_pipe = NULL;
 588         }
 589         if (sc->sc_in_pipe != NULL) {
 590                 usbd_abort_pipe(sc->sc_in_pipe);
 591                 usbd_close_pipe(sc->sc_in_pipe);
 592                 sc->sc_in_pipe = NULL;
 593                 if (sc->sc_in_xfer1 != NULL) {
 594                         usbd_free_xfer(sc->sc_in_xfer1);
 595                         sc->sc_in_xfer1 = NULL;
 596                 }
 597                 if (sc->sc_in_xfer2 != NULL) {
 598                         usbd_free_xfer(sc->sc_in_xfer2);
 599                         sc->sc_in_xfer2 = NULL;
 600                 }
 601         }
 602
 603         sc->sc_state = 0;
 604
 605         DPRINTF(("ulptclose: closed\n"));
 606         return (0);
 607 }
 608
 609 int
 610 ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags)
 611 {
 612         u_int32_t n;
 613         int error = 0;
 614         void *bufp;
 615         usbd_xfer_handle xfer;
 616         usbd_status err;
 617
 618         DPRINTF(("ulptwrite\n"));
 619         xfer = usbd_alloc_xfer(sc->sc_udev);
 620         if (xfer == NULL)
 621                 return (ENOMEM);
 622         bufp = usbd_alloc_buffer(xfer, ULPT_BSIZE);
 623         if (bufp == NULL) {
 624                 usbd_free_xfer(xfer);
 625                 return (ENOMEM);
 626         }
 627         while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) {
 628                 ulpt_statusmsg(ulpt_status(sc), sc);
 629                 error = uiomove(bufp, n, uio);
 630                 if (error)
 631                         break;
 632                 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n));
 633                 err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY,
 634                           USBD_NO_TIMEOUT, bufp, &n, "ulptwr");
 635                 if (err) {
 636                         DPRINTF(("ulptwrite: error=%d\n", err));
 637                         error = EIO;
 638                         break;
 639                 }
 640         }
 641         usbd_free_xfer(xfer);
 642
 643         return (error);
 644 }
 645
 646 int
 647 ulptwrite(struct dev_write_args *ap)
 648 {
 649         cdev_t dev = ap->a_head.a_dev;
 650         struct ulpt_softc *sc;
 651         int error;
 652
 653         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 654
 655         if (sc->sc_dying)
 656                 return (EIO);
 657
 658         sc->sc_refcnt++;
 659         error = ulpt_do_write(sc, ap->a_uio, ap->a_ioflag);
 660         if (--sc->sc_refcnt < 0)
 661                 usb_detach_wakeup(sc->sc_dev);
 662         return (error);
 663 }
 664
 665 int
 666 ulptioctl(struct dev_ioctl_args *ap)
 667 {
 668         int error = 0;
 669
 670         switch (ap->a_cmd) {
 671         default:
 672                 error = ENODEV;
 673         }
 674
 675         return (error);
 676 }
 677
 678 #if 0
 679 /* XXX This does not belong here. */
 680 /*
 681  * Print select parts of an IEEE 1284 device ID.
 682  */
 683 void
 684 ieee1284_print_id(char *str)
 685 {
 686         char *p, *q;
 687
 688         for (p = str-1; p; p = strchr(p, ';')) {
 689                 p++;            /* skip ';' */
 690                 if (strncmp(p, "MFG:", 4) == 0 ||
 691                     strncmp(p, "MANUFACTURER:", 14) == 0 ||
 692                     strncmp(p, "MDL:", 4) == 0 ||
 693                     strncmp(p, "MODEL:", 6) == 0) {
 694                         q = strchr(p, ';');
 695                         if (q)
 696                                 kprintf("%.*s", (int)(q - p + 1), p);
 697                 }
 698         }
 699 }
 700 #endif
 701
 702 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, 0);
 703