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 #define ULPT_JUNK_SIZE  512
  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         cdev_t  sc_cdev1;
 101         cdev_t  sc_cdev2;
 102
 103         int sc_out;
 104         usbd_pipe_handle sc_out_pipe;   /* bulk out pipe */
 105
 106         int sc_in;
 107         usbd_pipe_handle sc_in_pipe;    /* bulk in pipe */
 108         usbd_xfer_handle sc_in_xfer1;
 109         usbd_xfer_handle sc_in_xfer2;
 110         u_char *sc_junk1;               /* somewhere to dump input */
 111         u_char *sc_junk2;               /* somewhere to dump input */
 112
 113         u_char sc_state;
 114 #define ULPT_OPEN       0x01    /* device is open */
 115 #define ULPT_OBUSY      0x02    /* printer is busy doing output */
 116 #define ULPT_INIT       0x04    /* waiting to initialize for open */
 117         u_char sc_flags;
 118 #define ULPT_NOPRIME    0x40    /* don't prime on open */
 119         u_char sc_laststatus;
 120
 121         int sc_refcnt;
 122         u_char sc_dying;
 123         struct kqinfo   sc_wkq;
 124         int vendor;
 125         int product;
 126 };
 127
 128 static d_open_t ulptopen;
 129 static d_close_t ulptclose;
 130 static d_write_t ulptwrite;
 131 static d_ioctl_t ulptioctl;
 132 static d_kqfilter_t ulptkqfilter;
 133
 134 static void ulpt_filt_detach(struct knote *);
 135 static int ulpt_filt(struct knote *, long);
 136
 137 static struct dev_ops ulpt_ops = {
 138         { "ulpt", 0, 0 },
 139         .d_open =       ulptopen,
 140         .d_close =      ulptclose,
 141         .d_write =      ulptwrite,
 142         .d_ioctl =      ulptioctl,
 143         .d_kqfilter =   ulptkqfilter
 144 };
 145
 146 void ulpt_disco(void *);
 147
 148 int ulpt_do_write(struct ulpt_softc *, struct uio *uio, int);
 149 int ulpt_status(struct ulpt_softc *);
 150 void ulpt_reset(struct ulpt_softc *);
 151 int ulpt_statusmsg(u_char, struct ulpt_softc *);
 152
 153 #if 0
 154 void ieee1284_print_id(char *);
 155 #endif
 156
 157 #define ULPTUNIT(s)     (minor(s) & 0x1f)
 158 #define ULPTFLAGS(s)    (minor(s) & 0xe0)
 159
 160
 161 static device_probe_t ulpt_match;
 162 static device_attach_t ulpt_attach;
 163 static device_detach_t ulpt_detach;
 164
 165 static devclass_t ulpt_devclass;
 166
 167 static kobj_method_t ulpt_methods[] = {
 168         DEVMETHOD(device_probe, ulpt_match),
 169         DEVMETHOD(device_attach, ulpt_attach),
 170         DEVMETHOD(device_detach, ulpt_detach),
 171         DEVMETHOD_END
 172 };
 173
 174 static driver_t ulpt_driver = {
 175         "ulpt",
 176         ulpt_methods,
 177         sizeof(struct ulpt_softc)
 178 };
 179
 180 MODULE_DEPEND(ulpt, usb, 1, 1, 1);
 181
 182 static int
 183 ulpt_match(device_t self)
 184 {
 185         struct usb_attach_arg *uaa = device_get_ivars(self);
 186         usb_interface_descriptor_t *id;
 187
 188         DPRINTFN(10,("ulpt_match\n"));
 189         if (uaa->iface == NULL)
 190                 return (UMATCH_NONE);
 191         id = usbd_get_interface_descriptor(uaa->iface);
 192         if (id != NULL &&
 193             id->bInterfaceClass == UICLASS_PRINTER &&
 194             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 195             (id->bInterfaceProtocol == UIPROTO_PRINTER_UNI ||
 196              id->bInterfaceProtocol == UIPROTO_PRINTER_BI ||
 197              id->bInterfaceProtocol == UIPROTO_PRINTER_1284))
 198                 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO);
 199         return (UMATCH_NONE);
 200 }
 201
 202 static int
 203 ulpt_attach(device_t self)
 204 {
 205         struct ulpt_softc *sc = device_get_softc(self);
 206         struct usb_attach_arg *uaa = device_get_ivars(self);
 207         usbd_device_handle dev = uaa->device;
 208         usbd_interface_handle iface = uaa->iface;
 209         usb_interface_descriptor_t *ifcd = usbd_get_interface_descriptor(iface);
 210         usb_interface_descriptor_t *id, *iend;
 211         usb_config_descriptor_t *cdesc;
 212         usbd_status err;
 213         usb_endpoint_descriptor_t *ed;
 214         u_int8_t epcount;
 215         int i, altno;
 216
 217         DPRINTFN(10,("ulpt_attach: sc=%p\n", sc));
 218         sc->sc_dev = self;
 219
 220         /* XXX
 221          * Stepping through the alternate settings needs to be abstracted out.
 222          */
 223         cdesc = usbd_get_config_descriptor(dev);
 224         if (cdesc == NULL) {
 225                 kprintf("%s: failed to get configuration descriptor\n",
 226                        device_get_nameunit(sc->sc_dev));
 227                 return ENXIO;
 228         }
 229         iend = (usb_interface_descriptor_t *)
 230                    ((char *)cdesc + UGETW(cdesc->wTotalLength));
 231 #ifdef DIAGNOSTIC
 232         if (ifcd < (usb_interface_descriptor_t *)cdesc ||
 233             ifcd >= iend)
 234                 panic("ulpt: iface desc out of range");
 235 #endif
 236         /* Step through all the descriptors looking for bidir mode */
 237         for (id = ifcd, altno = 0;
 238              id < iend;
 239              id = (void *)((char *)id + id->bLength)) {
 240                 if (id->bDescriptorType == UDESC_INTERFACE &&
 241                     id->bInterfaceNumber == ifcd->bInterfaceNumber) {
 242                         if (id->bInterfaceClass == UICLASS_PRINTER &&
 243                             id->bInterfaceSubClass == UISUBCLASS_PRINTER &&
 244                             (id->bInterfaceProtocol == UIPROTO_PRINTER_BI /* ||
 245                              id->bInterfaceProtocol == UIPROTO_PRINTER_1284 */))
 246                                 goto found;
 247                         altno++;
 248                 }
 249         }
 250         id = ifcd;              /* not found, use original */
 251  found:
 252         if (id != ifcd) {
 253                 /* Found a new bidir setting */
 254                 DPRINTF(("ulpt_attach: set altno = %d\n", altno));
 255                 err = usbd_set_interface(iface, altno);
 256                 if (err) {
 257                         kprintf("%s: setting alternate interface failed\n",
 258                                device_get_nameunit(sc->sc_dev));
 259                         sc->sc_dying = 1;
 260                         return ENXIO;
 261                 }
 262         }
 263
 264         epcount = 0;
 265         (void)usbd_endpoint_count(iface, &epcount);
 266
 267         sc->sc_in = -1;
 268         sc->sc_out = -1;
 269         sc->vendor = uaa->vendor;
 270         sc->product = uaa->product;
 271         for (i = 0; i < epcount; i++) {
 272                 ed = usbd_interface2endpoint_descriptor(iface, i);
 273                 if (ed == NULL) {
 274                         kprintf("%s: couldn't get ep %d\n",
 275                             device_get_nameunit(sc->sc_dev), i);
 276                         return ENXIO;
 277                 }
 278                 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
 279                     UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 280                         sc->sc_in = ed->bEndpointAddress;
 281                 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
 282                            UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) {
 283                         sc->sc_out = ed->bEndpointAddress;
 284                 }
 285         }
 286         if (sc->sc_out == -1) {
 287                 kprintf("%s: could not find bulk out endpoint\n",
 288                     device_get_nameunit(sc->sc_dev));
 289                 sc->sc_dying = 1;
 290                 return ENXIO;
 291         }
 292
 293         if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) {
 294                 /* This device doesn't handle reading properly. */
 295                 sc->sc_in = -1;
 296         }
 297
 298         kprintf("%s: using %s-directional mode\n", device_get_nameunit(sc->sc_dev),
 299                sc->sc_in >= 0 ? "bi" : "uni");
 300
 301         DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out));
 302
 303         sc->sc_iface = iface;
 304         sc->sc_ifaceno = id->bInterfaceNumber;
 305         sc->sc_udev = dev;
 306         sc->sc_junk1 = NULL;
 307         sc->sc_junk2 = NULL;
 308
 309         sc->sc_cdev1 = make_dev(&ulpt_ops, device_get_unit(self),
 310                                 UID_ROOT, GID_OPERATOR, 0644,
 311                                 "ulpt%d", device_get_unit(self));
 312         sc->sc_cdev2 = make_dev(&ulpt_ops, device_get_unit(self)|ULPT_NOPRIME,
 313                                 UID_ROOT, GID_OPERATOR, 0644,
 314                                 "unlpt%d", device_get_unit(self));
 315
 316         usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
 317                            sc->sc_dev);
 318
 319         return 0;
 320 }
 321
 322 static int
 323 ulpt_detach(device_t self)
 324 {
 325         struct ulpt_softc *sc = device_get_softc(self);
 326
 327         DPRINTF(("ulpt_detach: sc=%p\n", sc));
 328
 329         sc->sc_dying = 1;
 330         if (sc->sc_out_pipe != NULL)
 331                 usbd_abort_pipe(sc->sc_out_pipe);
 332         if (sc->sc_in_pipe != NULL)
 333                 usbd_abort_pipe(sc->sc_in_pipe);
 334
 335         /*
 336          * Wait for any ongoing operations to complete before we actually
 337          * close things down.
 338          */
 339
 340         crit_enter();
 341         --sc->sc_refcnt;
 342         if (sc->sc_refcnt >= 0) {
 343                 kprintf("%s: waiting for idle\n", device_get_nameunit(sc->sc_dev));
 344                 while (sc->sc_refcnt >= 0)
 345                         usb_detach_wait(sc->sc_dev);
 346                 kprintf("%s: idle wait done\n", device_get_nameunit(sc->sc_dev));
 347         }
 348         crit_exit();
 349
 350         dev_ops_remove_minor(&ulpt_ops, /*-1, */device_get_unit(self));
 351         devfs_assume_knotes(sc->sc_cdev1, &sc->sc_wkq);
 352         devfs_assume_knotes(sc->sc_cdev2, &sc->sc_wkq);
 353
 354         usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev);
 355
 356         return (0);
 357 }
 358
 359 int
 360 ulpt_status(struct ulpt_softc *sc)
 361 {
 362         usb_device_request_t req;
 363         usbd_status err;
 364         u_char status;
 365
 366         req.bmRequestType = UT_READ_CLASS_INTERFACE;
 367         req.bRequest = UR_GET_PORT_STATUS;
 368         USETW(req.wValue, 0);
 369         USETW(req.wIndex, sc->sc_ifaceno);
 370         USETW(req.wLength, 1);
 371         err = usbd_do_request(sc->sc_udev, &req, &status);
 372         DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err));
 373         if (!err)
 374                 return (status);
 375         else
 376                 return (0);
 377 }
 378
 379 void
 380 ulpt_reset(struct ulpt_softc *sc)
 381 {
 382         usb_device_request_t req;
 383         int other_fails;
 384
 385         /* The Brother HL1240 doesn't handle UT_WRITE_CLASS_OTHER */
 386         other_fails = (sc->vendor == 0x04f9 && sc->product == 0x0006);
 387
 388         DPRINTFN(1, ("ulpt_reset\n"));
 389         req.bRequest = UR_SOFT_RESET;
 390         USETW(req.wValue, 0);
 391         USETW(req.wIndex, sc->sc_ifaceno);
 392         USETW(req.wLength, 0);
 393
 394         /*
 395          * There was a mistake in the USB printer 1.0 spec that gave the
 396          * request type as UT_WRITE_CLASS_OTHER; it should have been
 397          * UT_WRITE_CLASS_INTERFACE.  Many printers use the old one,
 398          * so we try both.
 399          */
 400         req.bmRequestType = UT_WRITE_CLASS_OTHER;
 401         /* Some printers don't handle UT_WRITE_CLASS_OTHER */
 402         if (other_fails || usbd_do_request(sc->sc_udev, &req, 0)) {/* 1.0 */
 403                 req.bmRequestType = UT_WRITE_CLASS_INTERFACE;
 404                 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */
 405         }
 406 }
 407
 408 static void
 409 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status)
 410 {
 411         struct ulpt_softc *sc = priv;
 412         u_int32_t count;
 413
 414         /* Don't loop on errors or 0-length input. */
 415         usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL);
 416         if (status != USBD_NORMAL_COMPLETION || count == 0)
 417                 return;
 418
 419         DPRINTFN(2,("ulpt_input: got some data\n"));
 420         /* Do it again. */
 421         if (xfer == sc->sc_in_xfer1)
 422                 usbd_transfer(sc->sc_in_xfer2);
 423         else
 424                 usbd_transfer(sc->sc_in_xfer1);
 425 }
 426
 427 int ulptusein = 1;
 428
 429 /*
 430  * Reset the printer, then wait until it's selected and not busy.
 431  */
 432 int
 433 ulptopen(struct dev_open_args *ap)
 434 {
 435         cdev_t dev = ap->a_head.a_dev;
 436         u_char flags = ULPTFLAGS(dev);
 437         struct ulpt_softc *sc;
 438         usbd_status err;
 439         int spin, error;
 440
 441         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 442         if (sc == NULL)
 443                 return (ENXIO);
 444
 445         if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying)
 446                 return (ENXIO);
 447
 448         if (sc->sc_state)
 449                 return (EBUSY);
 450
 451         sc->sc_state = ULPT_INIT;
 452         sc->sc_flags = flags;
 453         DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags));
 454
 455 #if defined(USB_DEBUG)
 456         /* Ignoring these flags might not be a good idea */
 457         if ((flags & ~ULPT_NOPRIME) != 0)
 458                 kprintf("ulptopen: flags ignored: %b\n", flags,
 459                         "\20\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS");
 460 #endif
 461
 462         error = 0;
 463         sc->sc_refcnt++;
 464
 465         if ((flags & ULPT_NOPRIME) == 0) {
 466                 ulpt_reset(sc);
 467                 if (sc->sc_dying) {
 468                         error = ENXIO;
 469                         sc->sc_state = 0;
 470                         goto done;
 471                 }
 472         }
 473
 474         for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) {
 475                 DPRINTF(("ulpt_open: waiting a while\n"));
 476                 if (spin >= TIMEOUT) {
 477                         error = EBUSY;
 478                         sc->sc_state = 0;
 479                         goto done;
 480                 }
 481
 482                 /* wait 1/4 second, give up if we get a signal */
 483                 error = tsleep((caddr_t)sc, PCATCH, "ulptop", STEP);
 484                 if (error != EWOULDBLOCK) {
 485                         sc->sc_state = 0;
 486                         goto done;
 487                 }
 488
 489                 if (sc->sc_dying) {
 490                         error = ENXIO;
 491                         sc->sc_state = 0;
 492                         goto done;
 493                 }
 494         }
 495
 496         err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe);
 497         if (err) {
 498                 sc->sc_state = 0;
 499                 error = EIO;
 500                 goto done;
 501         }
 502
 503         if (ulptusein && sc->sc_in != -1) {
 504                 DPRINTF(("ulpt_open: open input pipe\n"));
 505                 err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe);
 506                 if (err) {
 507                         error = EIO;
 508                         usbd_close_pipe(sc->sc_out_pipe);
 509                         sc->sc_out_pipe = NULL;
 510                         sc->sc_state = 0;
 511                         goto done;
 512                 }
 513                 sc->sc_in_xfer1 = usbd_alloc_xfer(sc->sc_udev);
 514                 sc->sc_in_xfer2 = usbd_alloc_xfer(sc->sc_udev);
 515                 if (sc->sc_in_xfer1 == NULL || sc->sc_in_xfer2 == NULL) {
 516                         error = ENOMEM;
 517                         if (sc->sc_in_xfer1 != NULL) {
 518                                 usbd_free_xfer(sc->sc_in_xfer1);
 519                                 sc->sc_in_xfer1 = NULL;
 520                         }
 521                         if (sc->sc_in_xfer2 != NULL) {
 522                                 usbd_free_xfer(sc->sc_in_xfer2);
 523                                 sc->sc_in_xfer2 = NULL;
 524                         }
 525                         usbd_close_pipe(sc->sc_out_pipe);
 526                         sc->sc_out_pipe = NULL;
 527                         usbd_close_pipe(sc->sc_in_pipe);
 528                         sc->sc_in_pipe = NULL;
 529                         sc->sc_state = 0;
 530                         goto done;
 531                 }
 532                 sc->sc_junk1 = usbd_alloc_buffer(sc->sc_in_xfer1,
 533                                                  ULPT_JUNK_SIZE);
 534                 sc->sc_junk2 = usbd_alloc_buffer(sc->sc_in_xfer2,
 535                                                  ULPT_JUNK_SIZE);
 536                 usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc,
 537                     sc->sc_junk1, ULPT_JUNK_SIZE, USBD_SHORT_XFER_OK,
 538                     USBD_NO_TIMEOUT, ulpt_input);
 539                 usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc,
 540                     sc->sc_junk2, ULPT_JUNK_SIZE, USBD_SHORT_XFER_OK,
 541                     USBD_NO_TIMEOUT, ulpt_input);
 542                 usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */
 543         }
 544
 545         sc->sc_state = ULPT_OPEN;
 546
 547 done:
 548         if (--sc->sc_refcnt < 0)
 549                 usb_detach_wakeup(sc->sc_dev);
 550
 551         DPRINTF(("ulptopen: done, error=%d\n", error));
 552         return (error);
 553 }
 554
 555 int
 556 ulpt_statusmsg(u_char status, struct ulpt_softc *sc)
 557 {
 558         u_char new;
 559
 560         status = (status ^ LPS_INVERT) & LPS_MASK;
 561         new = status & ~sc->sc_laststatus;
 562         sc->sc_laststatus = status;
 563
 564         if (new & LPS_SELECT)
 565                 log(LOG_NOTICE, "%s: offline\n", device_get_nameunit(sc->sc_dev));
 566         else if (new & LPS_NOPAPER)
 567                 log(LOG_NOTICE, "%s: out of paper\n", device_get_nameunit(sc->sc_dev));
 568         else if (new & LPS_NERR)
 569                 log(LOG_NOTICE, "%s: output error\n", device_get_nameunit(sc->sc_dev));
 570
 571         return (status);
 572 }
 573
 574 int
 575 ulptclose(struct dev_close_args *ap)
 576 {
 577         cdev_t dev = ap->a_head.a_dev;
 578         struct ulpt_softc *sc;
 579
 580         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 581
 582         if (sc->sc_state != ULPT_OPEN)
 583                 /* We are being forced to close before the open completed. */
 584                 return (0);
 585
 586         if (sc->sc_out_pipe != NULL) {
 587                 usbd_close_pipe(sc->sc_out_pipe);
 588                 sc->sc_out_pipe = NULL;
 589         }
 590         if (sc->sc_in_pipe != NULL) {
 591                 usbd_abort_pipe(sc->sc_in_pipe);
 592                 usbd_close_pipe(sc->sc_in_pipe);
 593                 sc->sc_in_pipe = NULL;
 594                 if (sc->sc_in_xfer1 != NULL) {
 595                         usbd_free_xfer(sc->sc_in_xfer1);
 596                         sc->sc_in_xfer1 = NULL;
 597                 }
 598                 if (sc->sc_in_xfer2 != NULL) {
 599                         usbd_free_xfer(sc->sc_in_xfer2);
 600                         sc->sc_in_xfer2 = NULL;
 601                 }
 602         }
 603
 604         sc->sc_state = 0;
 605
 606         DPRINTF(("ulptclose: closed\n"));
 607         return (0);
 608 }
 609
 610 int
 611 ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags)
 612 {
 613         u_int32_t n;
 614         int error = 0;
 615         void *bufp;
 616         usbd_xfer_handle xfer;
 617         usbd_status err;
 618
 619         DPRINTF(("ulptwrite\n"));
 620         xfer = usbd_alloc_xfer(sc->sc_udev);
 621         if (xfer == NULL)
 622                 return (ENOMEM);
 623         bufp = usbd_alloc_buffer(xfer, ULPT_BSIZE);
 624         if (bufp == NULL) {
 625                 usbd_free_xfer(xfer);
 626                 return (ENOMEM);
 627         }
 628         while ((n = szmin(ULPT_BSIZE, uio->uio_resid)) != 0) {
 629                 ulpt_statusmsg(ulpt_status(sc), sc);
 630                 error = uiomove(bufp, n, uio);
 631                 if (error) {
 632                         DPRINTF(("ulpt_do_write: uiomove error = %d\n", error));
 633                         break;
 634                 }
 635                 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n));
 636                 err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY,
 637                           USBD_NO_TIMEOUT, bufp, &n, "ulptwr");
 638                 if (err) {
 639                         DPRINTF(("ulptwrite: error=%d\n", err));
 640                         error = EIO;
 641                         break;
 642                 }
 643         }
 644         usbd_free_xfer(xfer);
 645
 646         return (error);
 647 }
 648
 649 int
 650 ulptwrite(struct dev_write_args *ap)
 651 {
 652         cdev_t dev = ap->a_head.a_dev;
 653         struct ulpt_softc *sc;
 654         int error;
 655
 656         sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 657
 658         if (sc == NULL || sc->sc_dying)
 659                 return (EIO);
 660
 661         sc->sc_refcnt++;
 662         error = ulpt_do_write(sc, ap->a_uio, ap->a_ioflag);
 663         DPRINTF(("ulpt_write: error = %d\n", error));
 664         if (--sc->sc_refcnt < 0)
 665                 usb_detach_wakeup(sc->sc_dev);
 666         return (error);
 667 }
 668
 669 int
 670 ulptioctl(struct dev_ioctl_args *ap)
 671 {
 672         int error = 0;
 673
 674         switch (ap->a_cmd) {
 675         default:
 676                 error = ENODEV;
 677         }
 678
 679         return (error);
 680 }
 681
 682 static struct filterops ulpt_filtops =
 683         { FILTEROP_ISFD, NULL, ulpt_filt_detach, ulpt_filt };
 684
 685 static int
 686 ulptkqfilter(struct dev_kqfilter_args *ap)
 687 {
 688         cdev_t dev = ap->a_head.a_dev;
 689         struct knote *kn = ap->a_kn;
 690         struct ulpt_softc *sc;
 691         struct klist *klist;
 692
 693         ap->a_result = 0;
 694
 695         switch(kn->kn_filter) {
 696         case EVFILT_WRITE:
 697                 sc = devclass_get_softc(ulpt_devclass, ULPTUNIT(dev));
 698                 kn->kn_fop = &ulpt_filtops;
 699                 kn->kn_hook = (caddr_t)sc;
 700                 break;
 701         default:
 702                 ap->a_result = EOPNOTSUPP;
 703                 return (0);
 704         }
 705
 706         klist = &sc->sc_wkq.ki_note;
 707         knote_insert(klist, kn);
 708
 709         return(0);
 710 }
 711
 712 static void
 713 ulpt_filt_detach(struct knote *kn)
 714 {
 715         struct ulpt_softc *sc = (struct ulpt_softc *)kn->kn_hook;
 716         struct klist *klist;
 717
 718         klist = &sc->sc_wkq.ki_note;
 719         knote_remove(klist, kn);
 720 }
 721
 722 static int
 723 ulpt_filt(struct knote *kn, long hint)
 724 {
 725 /*        struct ulpt_softc *sc = (struct ulpt_softc *)kn->kn_hook;*/
 726
 727         return 1;
 728 }
 729
 730 #if 0
 731 /* XXX This does not belong here. */
 732 /*
 733  * Print select parts of an IEEE 1284 device ID.
 734  */
 735 void
 736 ieee1284_print_id(char *str)
 737 {
 738         char *p, *q;
 739
 740         for (p = str-1; p; p = strchr(p, ';')) {
 741                 p++;            /* skip ';' */
 742                 if (strncmp(p, "MFG:", 4) == 0 ||
 743                     strncmp(p, "MANUFACTURER:", 14) == 0 ||
 744                     strncmp(p, "MDL:", 4) == 0 ||
 745                     strncmp(p, "MODEL:", 6) == 0) {
 746                         q = strchr(p, ';');
 747                         if (q)
 748                                 kprintf("%.*s", (int)(q - p + 1), p);
 749                 }
 750         }
 751 }
 752 #endif
 753
 754 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, NULL);
 755