1 /* $NetBSD: ulpt.c,v 1.60 2003/10/04 21:19:50 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/ulpt.c,v 1.24 1999/11/17 22:33:44 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998, 2003 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * This code is derived from software contributed to The NetBSD Foundation 9 * by Lennart Augustsson (lennart@augustsson.net) at 10 * Carlstedt Research & Technology. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 15 * 1. Redistributions of source code must retain the above copyright 16 * notice, this list of conditions and the following disclaimer. 17 * 2. Redistributions in binary form must reproduce the above copyright 18 * notice, this list of conditions and the following disclaimer in the 19 * documentation and/or other materials provided with the distribution. 20 * 3. All advertising materials mentioning features or use of this software 21 * must display the following acknowledgement: 22 * This product includes software developed by the NetBSD 23 * Foundation, Inc. and its contributors. 24 * 4. Neither the name of The NetBSD Foundation nor the names of its 25 * contributors may be used to endorse or promote products derived 26 * from this software without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 29 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 30 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 31 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 32 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 33 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 34 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 35 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 36 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 37 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 38 * POSSIBILITY OF SUCH DAMAGE. 39 */ 40 41 /* 42 * Printer Class spec: http://www.usb.org/developers/data/devclass/usbprint109.PDF 43 */ 44 45 #include <sys/cdefs.h> 46 __KERNEL_RCSID(0, "$NetBSD: ulpt.c,v 1.60 2003/10/04 21:19:50 augustss Exp $"); 47 48 #include <sys/param.h> 49 #include <sys/systm.h> 50 #include <sys/proc.h> 51 #include <sys/kernel.h> 52 #include <sys/fcntl.h> 53 #if defined(__NetBSD__) || defined(__OpenBSD__) 54 #include <sys/device.h> 55 #include <sys/ioctl.h> 56 #elif defined(__FreeBSD__) 57 #include <sys/ioccom.h> 58 #include <sys/module.h> 59 #include <sys/bus.h> 60 #endif 61 #include <sys/uio.h> 62 #include <sys/conf.h> 63 #include <sys/vnode.h> 64 #include <sys/syslog.h> 65 66 #include <machine/vmparam.h> /* PAGE_SIZE */ 67 68 #include <dev/usb/usb.h> 69 #include <dev/usb/usbdi.h> 70 #include <dev/usb/usbdi_util.h> 71 #include <dev/usb/usbdevs.h> 72 #include <dev/usb/usb_quirks.h> 73 74 #define TIMEOUT hz*16 /* wait up to 16 seconds for a ready */ 75 #define STEP hz/4 76 77 #define LPTPRI (PZERO+8) 78 #define ULPT_BSIZE PAGE_SIZE 79 80 #define ULPT_READS_PER_SEC 5 81 #define ULPT_READ_TIMO 10 82 83 #ifdef ULPT_DEBUG 84 #define DPRINTF(x) if (ulptdebug) logprintf x 85 #define DPRINTFN(n,x) if (ulptdebug>(n)) logprintf x 86 int ulptdebug = 0; 87 #else 88 #define DPRINTF(x) 89 #define DPRINTFN(n,x) 90 #endif 91 92 #define UR_GET_DEVICE_ID 0 93 #define UR_GET_PORT_STATUS 1 94 #define UR_SOFT_RESET 2 95 96 #define LPS_NERR 0x08 /* printer no error */ 97 #define LPS_SELECT 0x10 /* printer selected */ 98 #define LPS_NOPAPER 0x20 /* printer out of paper */ 99 #define LPS_INVERT (LPS_SELECT|LPS_NERR) 100 #define LPS_MASK (LPS_SELECT|LPS_NERR|LPS_NOPAPER) 101 102 struct ulpt_softc { 103 USBBASEDEVICE sc_dev; 104 usbd_device_handle sc_udev; /* device */ 105 usbd_interface_handle sc_iface; /* interface */ 106 int sc_ifaceno; 107 108 int sc_out; 109 usbd_pipe_handle sc_out_pipe; /* bulk out pipe */ 110 usbd_xfer_handle sc_out_xfer; 111 void *sc_out_buf; 112 113 int sc_in; 114 usbd_pipe_handle sc_in_pipe; /* bulk in pipe */ 115 usbd_xfer_handle sc_in_xfer; 116 void *sc_in_buf; 117 118 usb_callout_t sc_read_callout; 119 int sc_has_callout; 120 121 u_char sc_state; 122 #define ULPT_OPEN 0x01 /* device is open */ 123 #define ULPT_OBUSY 0x02 /* printer is busy doing output */ 124 #define ULPT_INIT 0x04 /* waiting to initialize for open */ 125 u_char sc_flags; 126 #define ULPT_NOPRIME 0x40 /* don't prime on open */ 127 u_char sc_laststatus; 128 129 int sc_refcnt; 130 u_char sc_dying; 131 132 #if defined(__FreeBSD__) 133 dev_t dev; 134 dev_t dev_noprime; 135 #endif 136 }; 137 138 #if defined(__NetBSD__) 139 dev_type_open(ulptopen); 140 dev_type_close(ulptclose); 141 dev_type_write(ulptwrite); 142 dev_type_read(ulptread); 143 dev_type_ioctl(ulptioctl); 144 145 const struct cdevsw ulpt_cdevsw = { 146 ulptopen, ulptclose, ulptread, ulptwrite, ulptioctl, 147 nostop, notty, nopoll, nommap, nokqfilter, 148 }; 149 #elif defined(__OpenBSD__) 150 cdev_decl(ulpt); 151 #elif defined(__FreeBSD__) 152 Static d_open_t ulptopen; 153 Static d_close_t ulptclose; 154 Static d_write_t ulptwrite; 155 Static d_ioctl_t ulptioctl; 156 157 #define ULPT_CDEV_MAJOR 113 158 159 Static struct cdevsw ulpt_cdevsw = { 160 /* open */ ulptopen, 161 /* close */ ulptclose, 162 /* read */ noread, 163 /* write */ ulptwrite, 164 /* ioctl */ ulptioctl, 165 /* poll */ nopoll, 166 /* mmap */ nommap, 167 /* strategy */ nostrategy, 168 /* name */ "ulpt", 169 /* maj */ ULPT_CDEV_MAJOR, 170 /* dump */ nodump, 171 /* psize */ nopsize, 172 /* flags */ 0, 173 #if !defined(__FreeBSD__) || (__FreeBSD__ < 5) 174 /* bmaj */ -1 175 #endif 176 }; 177 #endif 178 179 void ulpt_disco(void *); 180 181 int ulpt_do_write(struct ulpt_softc *, struct uio *uio, int); 182 int ulpt_do_read(struct ulpt_softc *, struct uio *uio, int); 183 int ulpt_status(struct ulpt_softc *); 184 void ulpt_reset(struct ulpt_softc *); 185 int ulpt_statusmsg(u_char, struct ulpt_softc *); 186 void ulpt_read_cb(usbd_xfer_handle xfer, usbd_private_handle priv, 187 usbd_status status); 188 void ulpt_tick(void *xsc); 189 190 #if 0 191 void ieee1284_print_id(char *); 192 #endif 193 194 #define ULPTUNIT(s) (minor(s) & 0x1f) 195 #define ULPTFLAGS(s) (minor(s) & 0xe0) 196 197 198 USB_DECLARE_DRIVER(ulpt); 199 200 USB_MATCH(ulpt) 201 { 202 USB_MATCH_START(ulpt, uaa); 203 usb_interface_descriptor_t *id; 204 205 DPRINTFN(10,("ulpt_match\n")); 206 if (uaa->iface == NULL) 207 return (UMATCH_NONE); 208 id = usbd_get_interface_descriptor(uaa->iface); 209 if (id != NULL && 210 id->bInterfaceClass == UICLASS_PRINTER && 211 id->bInterfaceSubClass == UISUBCLASS_PRINTER && 212 (id->bInterfaceProtocol == UIPROTO_PRINTER_UNI || 213 id->bInterfaceProtocol == UIPROTO_PRINTER_BI || 214 id->bInterfaceProtocol == UIPROTO_PRINTER_1284)) 215 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO); 216 return (UMATCH_NONE); 217 } 218 219 USB_ATTACH(ulpt) 220 { 221 USB_ATTACH_START(ulpt, sc, uaa); 222 usbd_device_handle dev = uaa->device; 223 usbd_interface_handle iface = uaa->iface; 224 usb_interface_descriptor_t *ifcd = usbd_get_interface_descriptor(iface); 225 usb_interface_descriptor_t *id, *iend; 226 usb_config_descriptor_t *cdesc; 227 usbd_status err; 228 char devinfo[1024]; 229 usb_endpoint_descriptor_t *ed; 230 u_int8_t epcount; 231 int i, altno; 232 233 DPRINTFN(10,("ulpt_attach: sc=%p\n", sc)); 234 usbd_devinfo(dev, 0, devinfo); 235 USB_ATTACH_SETUP; 236 printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), 237 devinfo, ifcd->bInterfaceClass, ifcd->bInterfaceSubClass); 238 239 /* XXX 240 * Stepping through the alternate settings needs to be abstracted out. 241 */ 242 cdesc = usbd_get_config_descriptor(dev); 243 if (cdesc == NULL) { 244 printf("%s: failed to get configuration descriptor\n", 245 USBDEVNAME(sc->sc_dev)); 246 USB_ATTACH_ERROR_RETURN; 247 } 248 iend = (usb_interface_descriptor_t *) 249 ((char *)cdesc + UGETW(cdesc->wTotalLength)); 250 #ifdef DIAGNOSTIC 251 if (ifcd < (usb_interface_descriptor_t *)cdesc || 252 ifcd >= iend) 253 panic("ulpt: iface desc out of range"); 254 #endif 255 /* Step through all the descriptors looking for bidir mode */ 256 for (id = ifcd, altno = 0; 257 id < iend; 258 id = (void *)((char *)id + id->bLength)) { 259 if (id->bDescriptorType == UDESC_INTERFACE && 260 id->bInterfaceNumber == ifcd->bInterfaceNumber) { 261 if (id->bInterfaceClass == UICLASS_PRINTER && 262 id->bInterfaceSubClass == UISUBCLASS_PRINTER && 263 (id->bInterfaceProtocol == UIPROTO_PRINTER_BI /*|| 264 id->bInterfaceProtocol == UIPROTO_PRINTER_1284*/)) 265 goto found; 266 altno++; 267 } 268 } 269 id = ifcd; /* not found, use original */ 270 found: 271 if (id != ifcd) { 272 /* Found a new bidir setting */ 273 DPRINTF(("ulpt_attach: set altno = %d\n", altno)); 274 err = usbd_set_interface(iface, altno); 275 if (err) { 276 printf("%s: setting alternate interface failed\n", 277 USBDEVNAME(sc->sc_dev)); 278 sc->sc_dying = 1; 279 USB_ATTACH_ERROR_RETURN; 280 } 281 } 282 283 epcount = 0; 284 (void)usbd_endpoint_count(iface, &epcount); 285 286 sc->sc_in = -1; 287 sc->sc_out = -1; 288 for (i = 0; i < epcount; i++) { 289 ed = usbd_interface2endpoint_descriptor(iface, i); 290 if (ed == NULL) { 291 printf("%s: couldn't get ep %d\n", 292 USBDEVNAME(sc->sc_dev), i); 293 USB_ATTACH_ERROR_RETURN; 294 } 295 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 296 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 297 sc->sc_in = ed->bEndpointAddress; 298 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 299 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 300 sc->sc_out = ed->bEndpointAddress; 301 } 302 } 303 if (sc->sc_out == -1) { 304 printf("%s: could not find bulk out endpoint\n", 305 USBDEVNAME(sc->sc_dev)); 306 sc->sc_dying = 1; 307 USB_ATTACH_ERROR_RETURN; 308 } 309 310 if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) { 311 /* This device doesn't handle reading properly. */ 312 sc->sc_in = -1; 313 } 314 315 printf("%s: using %s-directional mode\n", USBDEVNAME(sc->sc_dev), 316 sc->sc_in >= 0 ? "bi" : "uni"); 317 318 DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out)); 319 320 sc->sc_iface = iface; 321 sc->sc_ifaceno = id->bInterfaceNumber; 322 sc->sc_udev = dev; 323 324 #if 0 325 /* 326 * This code is disabled because for some mysterious reason it causes 327 * printing not to work. But only sometimes, and mostly with 328 * UHCI and less often with OHCI. *sigh* 329 */ 330 { 331 usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev); 332 usb_device_request_t req; 333 int len, alen; 334 335 req.bmRequestType = UT_READ_CLASS_INTERFACE; 336 req.bRequest = UR_GET_DEVICE_ID; 337 USETW(req.wValue, cd->bConfigurationValue); 338 USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting); 339 USETW(req.wLength, sizeof devinfo - 1); 340 err = usbd_do_request_flags(dev, &req, devinfo, USBD_SHORT_XFER_OK, 341 &alen, USBD_DEFAULT_TIMEOUT); 342 if (err) { 343 printf("%s: cannot get device id\n", USBDEVNAME(sc->sc_dev)); 344 } else if (alen <= 2) { 345 printf("%s: empty device id, no printer connected?\n", 346 USBDEVNAME(sc->sc_dev)); 347 } else { 348 /* devinfo now contains an IEEE-1284 device ID */ 349 len = ((devinfo[0] & 0xff) << 8) | (devinfo[1] & 0xff); 350 if (len > sizeof devinfo - 3) 351 len = sizeof devinfo - 3; 352 devinfo[len] = 0; 353 printf("%s: device id <", USBDEVNAME(sc->sc_dev)); 354 ieee1284_print_id(devinfo+2); 355 printf(">\n"); 356 } 357 } 358 #endif 359 360 #if defined(__FreeBSD__) 361 sc->dev = make_dev(&ulpt_cdevsw, device_get_unit(self), 362 UID_ROOT, GID_OPERATOR, 0644, "ulpt%d", device_get_unit(self)); 363 sc->dev_noprime = make_dev(&ulpt_cdevsw, 364 device_get_unit(self)|ULPT_NOPRIME, 365 UID_ROOT, GID_OPERATOR, 0644, "unlpt%d", device_get_unit(self)); 366 #endif 367 368 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 369 USBDEV(sc->sc_dev)); 370 371 USB_ATTACH_SUCCESS_RETURN; 372 } 373 374 #if defined(__NetBSD__) || defined(__OpenBSD__) 375 int 376 ulpt_activate(device_ptr_t self, enum devact act) 377 { 378 struct ulpt_softc *sc = (struct ulpt_softc *)self; 379 380 switch (act) { 381 case DVACT_ACTIVATE: 382 return (EOPNOTSUPP); 383 384 case DVACT_DEACTIVATE: 385 sc->sc_dying = 1; 386 break; 387 } 388 return (0); 389 } 390 #endif 391 392 USB_DETACH(ulpt) 393 { 394 USB_DETACH_START(ulpt, sc); 395 int s; 396 #if defined(__NetBSD__) || defined(__OpenBSD__) 397 int maj, mn; 398 #elif defined(__FreeBSD__) 399 struct vnode *vp; 400 #endif 401 402 DPRINTF(("ulpt_detach: sc=%p\n", sc)); 403 404 sc->sc_dying = 1; 405 if (sc->sc_out_pipe != NULL) 406 usbd_abort_pipe(sc->sc_out_pipe); 407 if (sc->sc_in_pipe != NULL) 408 usbd_abort_pipe(sc->sc_in_pipe); 409 410 s = splusb(); 411 if (--sc->sc_refcnt >= 0) { 412 /* There is noone to wake, aborting the pipe is enough */ 413 /* Wait for processes to go away. */ 414 usb_detach_wait(USBDEV(sc->sc_dev)); 415 } 416 splx(s); 417 418 #if defined(__NetBSD__) || defined(__OpenBSD__) 419 /* locate the major number */ 420 #if defined(__NetBSD__) 421 maj = cdevsw_lookup_major(&ulpt_cdevsw); 422 #elif defined(__OpenBSD__) 423 for (maj = 0; maj < nchrdev; maj++) 424 if (cdevsw[maj].d_open == ulptopen) 425 break; 426 #endif 427 428 /* Nuke the vnodes for any open instances (calls close). */ 429 mn = self->dv_unit; 430 vdevgone(maj, mn, mn, VCHR); 431 vdevgone(maj, mn | ULPT_NOPRIME , mn | ULPT_NOPRIME, VCHR); 432 #elif defined(__FreeBSD__) 433 vp = SLIST_FIRST(&sc->dev->si_hlist); 434 if (vp) 435 VOP_REVOKE(vp, REVOKEALL); 436 vp = SLIST_FIRST(&sc->dev_noprime->si_hlist); 437 if (vp) 438 VOP_REVOKE(vp, REVOKEALL); 439 440 destroy_dev(sc->dev); 441 destroy_dev(sc->dev_noprime); 442 #endif 443 444 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 445 USBDEV(sc->sc_dev)); 446 447 return (0); 448 } 449 450 int 451 ulpt_status(struct ulpt_softc *sc) 452 { 453 usb_device_request_t req; 454 usbd_status err; 455 u_char status; 456 457 req.bmRequestType = UT_READ_CLASS_INTERFACE; 458 req.bRequest = UR_GET_PORT_STATUS; 459 USETW(req.wValue, 0); 460 USETW(req.wIndex, sc->sc_ifaceno); 461 USETW(req.wLength, 1); 462 err = usbd_do_request(sc->sc_udev, &req, &status); 463 DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err)); 464 if (!err) 465 return (status); 466 else 467 return (0); 468 } 469 470 void 471 ulpt_reset(struct ulpt_softc *sc) 472 { 473 usb_device_request_t req; 474 475 DPRINTFN(1, ("ulpt_reset\n")); 476 req.bRequest = UR_SOFT_RESET; 477 USETW(req.wValue, 0); 478 USETW(req.wIndex, sc->sc_ifaceno); 479 USETW(req.wLength, 0); 480 481 /* 482 * There was a mistake in the USB printer 1.0 spec that gave the 483 * request type as UT_WRITE_CLASS_OTHER; it should have been 484 * UT_WRITE_CLASS_INTERFACE. Many printers use the old one, 485 * so we try both. 486 */ 487 req.bmRequestType = UT_WRITE_CLASS_OTHER; 488 if (usbd_do_request(sc->sc_udev, &req, 0)) { /* 1.0 */ 489 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 490 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */ 491 } 492 } 493 494 #if 0 495 static void 496 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 497 { 498 struct ulpt_softc *sc = priv; 499 500 DPRINTFN(2,("ulpt_input: got some data\n")); 501 /* Do it again. */ 502 if (xfer == sc->sc_in_xfer1) 503 usbd_transfer(sc->sc_in_xfer2); 504 else 505 usbd_transfer(sc->sc_in_xfer1); 506 } 507 #endif 508 509 int ulptusein = 1; 510 511 /* 512 * Reset the printer, then wait until it's selected and not busy. 513 */ 514 int 515 ulptopen(dev_t dev, int flag, int mode, usb_proc_ptr p) 516 { 517 u_char flags = ULPTFLAGS(dev); 518 struct ulpt_softc *sc; 519 usbd_status err; 520 int spin, error; 521 522 USB_GET_SC_OPEN(ulpt, ULPTUNIT(dev), sc); 523 524 if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying) 525 return (ENXIO); 526 527 if (sc->sc_state) 528 return (EBUSY); 529 530 sc->sc_state = ULPT_INIT; 531 sc->sc_flags = flags; 532 DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags)); 533 534 #if defined(ULPT_DEBUG) && defined(__FreeBSD__) 535 /* Ignoring these flags might not be a good idea */ 536 if ((flags & ~ULPT_NOPRIME) != 0) 537 printf("ulptopen: flags ignored: %b\n", flags, 538 "\20\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS"); 539 #endif 540 541 542 error = 0; 543 sc->sc_refcnt++; 544 545 if ((flags & ULPT_NOPRIME) == 0) 546 ulpt_reset(sc); 547 548 for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) { 549 DPRINTF(("ulpt_open: waiting a while\n")); 550 if (spin >= TIMEOUT) { 551 error = EBUSY; 552 sc->sc_state = 0; 553 goto done; 554 } 555 556 /* wait 1/4 second, give up if we get a signal */ 557 error = tsleep((caddr_t)sc, LPTPRI | PCATCH, "ulptop", STEP); 558 if (error != EWOULDBLOCK) { 559 sc->sc_state = 0; 560 goto done; 561 } 562 563 if (sc->sc_dying) { 564 error = ENXIO; 565 sc->sc_state = 0; 566 goto done; 567 } 568 } 569 570 err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe); 571 if (err) { 572 error = EIO; 573 goto err0; 574 } 575 sc->sc_out_xfer = usbd_alloc_xfer(sc->sc_udev); 576 if (sc->sc_out_xfer == NULL) { 577 error = ENOMEM; 578 goto err1; 579 } 580 sc->sc_out_buf = usbd_alloc_buffer(sc->sc_out_xfer, ULPT_BSIZE); 581 if (sc->sc_out_buf == NULL) { 582 error = ENOMEM; 583 goto err2; 584 } 585 586 if (ulptusein && sc->sc_in != -1) { 587 DPRINTF(("ulpt_open: open input pipe\n")); 588 err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe); 589 if (err) { 590 error = EIO; 591 goto err2; 592 } 593 sc->sc_in_xfer = usbd_alloc_xfer(sc->sc_udev); 594 if (sc->sc_in_xfer == NULL) { 595 error = ENOMEM; 596 goto err3; 597 } 598 sc->sc_in_buf = usbd_alloc_buffer(sc->sc_in_xfer, ULPT_BSIZE); 599 if (sc->sc_in_buf == NULL) { 600 error = ENOMEM; 601 goto err4; 602 } 603 604 /* If it's not opened for read the set up a reader. */ 605 if (!(flags & FREAD)) { 606 DPRINTF(("ulpt_open: start read callout\n")); 607 usb_callout_init(sc->sc_read_callout); 608 usb_callout(sc->sc_read_callout, hz/5, ulpt_tick, sc); 609 sc->sc_has_callout = 1; 610 } 611 } 612 613 sc->sc_state = ULPT_OPEN; 614 goto done; 615 616 err4: 617 usbd_free_xfer(sc->sc_in_xfer); 618 sc->sc_in_xfer = NULL; 619 err3: 620 usbd_close_pipe(sc->sc_in_pipe); 621 sc->sc_in_pipe = NULL; 622 err2: 623 usbd_free_xfer(sc->sc_out_xfer); 624 sc->sc_out_xfer = NULL; 625 err1: 626 usbd_close_pipe(sc->sc_out_pipe); 627 sc->sc_out_pipe = NULL; 628 err0: 629 sc->sc_state = 0; 630 631 done: 632 if (--sc->sc_refcnt < 0) 633 usb_detach_wakeup(USBDEV(sc->sc_dev)); 634 635 DPRINTF(("ulptopen: done, error=%d\n", error)); 636 return (error); 637 } 638 639 int 640 ulpt_statusmsg(u_char status, struct ulpt_softc *sc) 641 { 642 u_char new; 643 644 status = (status ^ LPS_INVERT) & LPS_MASK; 645 new = status & ~sc->sc_laststatus; 646 sc->sc_laststatus = status; 647 648 if (new & LPS_SELECT) 649 log(LOG_NOTICE, "%s: offline\n", USBDEVNAME(sc->sc_dev)); 650 else if (new & LPS_NOPAPER) 651 log(LOG_NOTICE, "%s: out of paper\n", USBDEVNAME(sc->sc_dev)); 652 else if (new & LPS_NERR) 653 log(LOG_NOTICE, "%s: output error\n", USBDEVNAME(sc->sc_dev)); 654 655 return (status); 656 } 657 658 int 659 ulptclose(dev_t dev, int flag, int mode, usb_proc_ptr p) 660 { 661 struct ulpt_softc *sc; 662 663 USB_GET_SC(ulpt, ULPTUNIT(dev), sc); 664 665 if (sc->sc_state != ULPT_OPEN) 666 /* We are being forced to close before the open completed. */ 667 return (0); 668 669 if (sc->sc_has_callout) { 670 usb_uncallout(sc->sc_read_callout, ulpt_tick, sc); 671 sc->sc_has_callout = 0; 672 } 673 674 if (sc->sc_out_pipe != NULL) { 675 usbd_abort_pipe(sc->sc_out_pipe); 676 usbd_close_pipe(sc->sc_out_pipe); 677 sc->sc_out_pipe = NULL; 678 } 679 if (sc->sc_out_xfer != NULL) { 680 usbd_free_xfer(sc->sc_out_xfer); 681 sc->sc_out_xfer = NULL; 682 } 683 684 if (sc->sc_in_pipe != NULL) { 685 usbd_abort_pipe(sc->sc_in_pipe); 686 usbd_close_pipe(sc->sc_in_pipe); 687 sc->sc_in_pipe = NULL; 688 } 689 if (sc->sc_in_xfer != NULL) { 690 usbd_free_xfer(sc->sc_in_xfer); 691 sc->sc_in_xfer = NULL; 692 } 693 694 sc->sc_state = 0; 695 696 DPRINTF(("ulptclose: closed\n")); 697 return (0); 698 } 699 700 int 701 ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags) 702 { 703 u_int32_t n; 704 int error = 0; 705 void *bufp; 706 usbd_xfer_handle xfer; 707 usbd_status err; 708 709 DPRINTF(("ulptwrite\n")); 710 xfer = sc->sc_out_xfer; 711 bufp = sc->sc_out_buf; 712 while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) { 713 ulpt_statusmsg(ulpt_status(sc), sc); 714 error = uiomove(bufp, n, uio); 715 if (error) 716 break; 717 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n)); 718 err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY, 719 USBD_NO_TIMEOUT, bufp, &n, "ulptwr"); 720 if (err) { 721 DPRINTF(("ulptwrite: error=%d\n", err)); 722 error = EIO; 723 break; 724 } 725 } 726 727 return (error); 728 } 729 730 int 731 ulptwrite(dev_t dev, struct uio *uio, int flags) 732 { 733 struct ulpt_softc *sc; 734 int error; 735 736 USB_GET_SC(ulpt, ULPTUNIT(dev), sc); 737 738 if (sc->sc_dying) 739 return (EIO); 740 741 sc->sc_refcnt++; 742 error = ulpt_do_write(sc, uio, flags); 743 if (--sc->sc_refcnt < 0) 744 usb_detach_wakeup(USBDEV(sc->sc_dev)); 745 return (error); 746 } 747 748 int 749 ulpt_do_read(struct ulpt_softc *sc, struct uio *uio, int flags) 750 { 751 u_int32_t n, on; 752 int error = 0; 753 void *bufp; 754 usbd_xfer_handle xfer; 755 usbd_status err; 756 757 DPRINTF(("ulptread\n")); 758 759 if (sc->sc_in_pipe == NULL) 760 return 0; 761 762 xfer = sc->sc_in_xfer; 763 bufp = sc->sc_in_buf; 764 while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) { 765 DPRINTFN(1, ("ulptread: transfer %d bytes\n", n)); 766 on = n; 767 err = usbd_bulk_transfer(xfer, sc->sc_in_pipe, 768 USBD_NO_COPY | USBD_SHORT_XFER_OK, 769 USBD_NO_TIMEOUT, bufp, &n, "ulptrd"); 770 if (err) { 771 DPRINTF(("ulptread: error=%d\n", err)); 772 error = EIO; 773 break; 774 } 775 error = uiomove(bufp, n, uio); 776 if (error) 777 break; 778 if (on != n) 779 break; 780 } 781 782 return (error); 783 } 784 785 int 786 ulptread(dev_t dev, struct uio *uio, int flags) 787 { 788 struct ulpt_softc *sc; 789 int error; 790 791 USB_GET_SC(ulpt, ULPTUNIT(dev), sc); 792 793 if (sc->sc_dying) 794 return (EIO); 795 796 sc->sc_refcnt++; 797 error = ulpt_do_read(sc, uio, flags); 798 if (--sc->sc_refcnt < 0) 799 usb_detach_wakeup(USBDEV(sc->sc_dev)); 800 return (error); 801 } 802 803 void 804 ulpt_read_cb(usbd_xfer_handle xfer, usbd_private_handle priv, 805 usbd_status status) 806 { 807 usbd_status err; 808 u_int32_t n; 809 usbd_private_handle xsc; 810 struct ulpt_softc *sc; 811 812 usbd_get_xfer_status(xfer, &xsc, NULL, &n, &err); 813 sc = xsc; 814 815 DPRINTFN(1,("ulpt_read_cb: start sc=%p, err=%d n=%d\n", sc, err, n)); 816 817 #ifdef ULPT_DEBUG 818 if (!err && n > 0) 819 DPRINTF(("ulpt_tick: discarding %d bytes\n", n)); 820 #endif 821 if (!err || err == USBD_TIMEOUT) 822 usb_callout(sc->sc_read_callout, hz / ULPT_READS_PER_SEC, 823 ulpt_tick, sc); 824 } 825 826 void 827 ulpt_tick(void *xsc) 828 { 829 struct ulpt_softc *sc = xsc; 830 usbd_status err; 831 832 if (sc == NULL || sc->sc_dying) 833 return; 834 835 DPRINTFN(1,("ulpt_tick: start sc=%p\n", sc)); 836 837 usbd_setup_xfer(sc->sc_in_xfer, sc->sc_in_pipe, sc, sc->sc_in_buf, 838 ULPT_BSIZE, USBD_NO_COPY | USBD_SHORT_XFER_OK, 839 ULPT_READ_TIMO, ulpt_read_cb); 840 err = usbd_transfer(sc->sc_in_xfer); 841 DPRINTFN(1,("ulpt_tick: err=%d\n", err)); 842 } 843 844 int 845 ulptioctl(dev_t dev, u_long cmd, caddr_t data, int flag, usb_proc_ptr p) 846 { 847 int error = 0; 848 849 switch (cmd) { 850 default: 851 error = ENODEV; 852 } 853 854 return (error); 855 } 856 857 #if 0 858 /* XXX This does not belong here. */ 859 /* 860 * Print select parts of a IEEE 1284 device ID. 861 */ 862 void 863 ieee1284_print_id(char *str) 864 { 865 char *p, *q; 866 867 for (p = str-1; p; p = strchr(p, ';')) { 868 p++; /* skip ';' */ 869 if (strncmp(p, "MFG:", 4) == 0 || 870 strncmp(p, "MANUFACTURER:", 14) == 0 || 871 strncmp(p, "MDL:", 4) == 0 || 872 strncmp(p, "MODEL:", 6) == 0) { 873 q = strchr(p, ';'); 874 if (q) 875 printf("%.*s", (int)(q - p + 1), p); 876 } 877 } 878 } 879 #endif 880 881 #if defined(__FreeBSD__) 882 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, 0); 883 #endif 884 885 886 887 888 889 #if 0 890 usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc, 891 sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK, 892 USBD_NO_TIMEOUT, ulpt_input); 893 usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc, 894 sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK, 895 USBD_NO_TIMEOUT, ulpt_input); 896 usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */ 897 #endif 898