1 /* $NetBSD: ulpt.c,v 1.62 2004/04/23 17:25:25 itojun 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 1.62 2004/04/23 17:25:25 itojun 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, sizeof(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 #if 0 256 /* Step through all the descriptors looking for bidir mode */ 257 for (id = ifcd, altno = 0; 258 id < iend; 259 id = (void *)((char *)id + id->bLength)) { 260 if (id->bDescriptorType == UDESC_INTERFACE && 261 id->bInterfaceNumber == ifcd->bInterfaceNumber) { 262 if (id->bInterfaceClass == UICLASS_PRINTER && 263 id->bInterfaceSubClass == UISUBCLASS_PRINTER && 264 (id->bInterfaceProtocol == UIPROTO_PRINTER_BI /*|| 265 id->bInterfaceProtocol == UIPROTO_PRINTER_1284*/)) 266 goto found; 267 altno++; 268 } 269 } 270 id = ifcd; /* not found, use original */ 271 found: 272 if (id != ifcd) { 273 /* Found a new bidir setting */ 274 DPRINTF(("ulpt_attach: set altno = %d\n", altno)); 275 err = usbd_set_interface(iface, altno); 276 if (err) { 277 printf("%s: setting alternate interface failed\n", 278 USBDEVNAME(sc->sc_dev)); 279 sc->sc_dying = 1; 280 USB_ATTACH_ERROR_RETURN; 281 } 282 } 283 #else 284 id = ifcd; 285 err = 0; 286 altno = 0; 287 #endif 288 289 epcount = 0; 290 (void)usbd_endpoint_count(iface, &epcount); 291 292 sc->sc_in = -1; 293 sc->sc_out = -1; 294 for (i = 0; i < epcount; i++) { 295 ed = usbd_interface2endpoint_descriptor(iface, i); 296 if (ed == NULL) { 297 printf("%s: couldn't get ep %d\n", 298 USBDEVNAME(sc->sc_dev), i); 299 USB_ATTACH_ERROR_RETURN; 300 } 301 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 302 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 303 sc->sc_in = ed->bEndpointAddress; 304 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 305 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 306 sc->sc_out = ed->bEndpointAddress; 307 } 308 } 309 if (sc->sc_out == -1) { 310 printf("%s: could not find bulk out endpoint\n", 311 USBDEVNAME(sc->sc_dev)); 312 sc->sc_dying = 1; 313 USB_ATTACH_ERROR_RETURN; 314 } 315 316 if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) { 317 /* This device doesn't handle reading properly. */ 318 sc->sc_in = -1; 319 } 320 321 printf("%s: using %s-directional mode\n", USBDEVNAME(sc->sc_dev), 322 sc->sc_in >= 0 ? "bi" : "uni"); 323 324 DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out)); 325 326 sc->sc_iface = iface; 327 sc->sc_ifaceno = id->bInterfaceNumber; 328 sc->sc_udev = dev; 329 330 #if 0 331 /* 332 * This code is disabled because for some mysterious reason it causes 333 * printing not to work. But only sometimes, and mostly with 334 * UHCI and less often with OHCI. *sigh* 335 */ 336 { 337 usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev); 338 usb_device_request_t req; 339 int len, alen; 340 341 req.bmRequestType = UT_READ_CLASS_INTERFACE; 342 req.bRequest = UR_GET_DEVICE_ID; 343 USETW(req.wValue, cd->bConfigurationValue); 344 USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting); 345 USETW(req.wLength, sizeof devinfo - 1); 346 err = usbd_do_request_flags(dev, &req, devinfo, USBD_SHORT_XFER_OK, 347 &alen, USBD_DEFAULT_TIMEOUT); 348 if (err) { 349 printf("%s: cannot get device id\n", USBDEVNAME(sc->sc_dev)); 350 } else if (alen <= 2) { 351 printf("%s: empty device id, no printer connected?\n", 352 USBDEVNAME(sc->sc_dev)); 353 } else { 354 /* devinfo now contains an IEEE-1284 device ID */ 355 len = ((devinfo[0] & 0xff) << 8) | (devinfo[1] & 0xff); 356 if (len > sizeof devinfo - 3) 357 len = sizeof devinfo - 3; 358 devinfo[len] = 0; 359 printf("%s: device id <", USBDEVNAME(sc->sc_dev)); 360 ieee1284_print_id(devinfo+2); 361 printf(">\n"); 362 } 363 } 364 #endif 365 366 #if defined(__FreeBSD__) 367 sc->dev = make_dev(&ulpt_cdevsw, device_get_unit(self), 368 UID_ROOT, GID_OPERATOR, 0644, "ulpt%d", device_get_unit(self)); 369 sc->dev_noprime = make_dev(&ulpt_cdevsw, 370 device_get_unit(self)|ULPT_NOPRIME, 371 UID_ROOT, GID_OPERATOR, 0644, "unlpt%d", device_get_unit(self)); 372 #endif 373 374 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 375 USBDEV(sc->sc_dev)); 376 377 USB_ATTACH_SUCCESS_RETURN; 378 } 379 380 #if defined(__NetBSD__) || defined(__OpenBSD__) 381 int 382 ulpt_activate(device_ptr_t self, enum devact act) 383 { 384 struct ulpt_softc *sc = (struct ulpt_softc *)self; 385 386 switch (act) { 387 case DVACT_ACTIVATE: 388 return (EOPNOTSUPP); 389 390 case DVACT_DEACTIVATE: 391 sc->sc_dying = 1; 392 break; 393 } 394 return (0); 395 } 396 #endif 397 398 USB_DETACH(ulpt) 399 { 400 USB_DETACH_START(ulpt, sc); 401 int s; 402 #if defined(__NetBSD__) || defined(__OpenBSD__) 403 int maj, mn; 404 #elif defined(__FreeBSD__) 405 struct vnode *vp; 406 #endif 407 408 DPRINTF(("ulpt_detach: sc=%p\n", sc)); 409 410 sc->sc_dying = 1; 411 if (sc->sc_out_pipe != NULL) 412 usbd_abort_pipe(sc->sc_out_pipe); 413 if (sc->sc_in_pipe != NULL) 414 usbd_abort_pipe(sc->sc_in_pipe); 415 416 s = splusb(); 417 if (--sc->sc_refcnt >= 0) { 418 /* There is noone to wake, aborting the pipe is enough */ 419 /* Wait for processes to go away. */ 420 usb_detach_wait(USBDEV(sc->sc_dev)); 421 } 422 splx(s); 423 424 #if defined(__NetBSD__) || defined(__OpenBSD__) 425 /* locate the major number */ 426 #if defined(__NetBSD__) 427 maj = cdevsw_lookup_major(&ulpt_cdevsw); 428 #elif defined(__OpenBSD__) 429 for (maj = 0; maj < nchrdev; maj++) 430 if (cdevsw[maj].d_open == ulptopen) 431 break; 432 #endif 433 434 /* Nuke the vnodes for any open instances (calls close). */ 435 mn = self->dv_unit; 436 vdevgone(maj, mn, mn, VCHR); 437 vdevgone(maj, mn | ULPT_NOPRIME , mn | ULPT_NOPRIME, VCHR); 438 #elif defined(__FreeBSD__) 439 vp = SLIST_FIRST(&sc->dev->si_hlist); 440 if (vp) 441 VOP_REVOKE(vp, REVOKEALL); 442 vp = SLIST_FIRST(&sc->dev_noprime->si_hlist); 443 if (vp) 444 VOP_REVOKE(vp, REVOKEALL); 445 446 destroy_dev(sc->dev); 447 destroy_dev(sc->dev_noprime); 448 #endif 449 450 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 451 USBDEV(sc->sc_dev)); 452 453 return (0); 454 } 455 456 int 457 ulpt_status(struct ulpt_softc *sc) 458 { 459 usb_device_request_t req; 460 usbd_status err; 461 u_char status; 462 463 req.bmRequestType = UT_READ_CLASS_INTERFACE; 464 req.bRequest = UR_GET_PORT_STATUS; 465 USETW(req.wValue, 0); 466 USETW(req.wIndex, sc->sc_ifaceno); 467 USETW(req.wLength, 1); 468 err = usbd_do_request(sc->sc_udev, &req, &status); 469 DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err)); 470 if (!err) 471 return (status); 472 else 473 return (0); 474 } 475 476 void 477 ulpt_reset(struct ulpt_softc *sc) 478 { 479 usb_device_request_t req; 480 481 DPRINTFN(1, ("ulpt_reset\n")); 482 req.bRequest = UR_SOFT_RESET; 483 USETW(req.wValue, 0); 484 USETW(req.wIndex, sc->sc_ifaceno); 485 USETW(req.wLength, 0); 486 487 /* 488 * There was a mistake in the USB printer 1.0 spec that gave the 489 * request type as UT_WRITE_CLASS_OTHER; it should have been 490 * UT_WRITE_CLASS_INTERFACE. Many printers use the old one, 491 * so we try both. 492 */ 493 req.bmRequestType = UT_WRITE_CLASS_OTHER; 494 if (usbd_do_request(sc->sc_udev, &req, 0)) { /* 1.0 */ 495 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 496 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */ 497 } 498 } 499 500 #if 0 501 static void 502 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 503 { 504 struct ulpt_softc *sc = priv; 505 506 DPRINTFN(2,("ulpt_input: got some data\n")); 507 /* Do it again. */ 508 if (xfer == sc->sc_in_xfer1) 509 usbd_transfer(sc->sc_in_xfer2); 510 else 511 usbd_transfer(sc->sc_in_xfer1); 512 } 513 #endif 514 515 int ulptusein = 1; 516 517 /* 518 * Reset the printer, then wait until it's selected and not busy. 519 */ 520 int 521 ulptopen(dev_t dev, int flag, int mode, usb_proc_ptr p) 522 { 523 u_char flags = ULPTFLAGS(dev); 524 struct ulpt_softc *sc; 525 usbd_status err; 526 int spin, error; 527 528 USB_GET_SC_OPEN(ulpt, ULPTUNIT(dev), sc); 529 530 if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying) 531 return (ENXIO); 532 533 if (sc->sc_state) 534 return (EBUSY); 535 536 sc->sc_state = ULPT_INIT; 537 sc->sc_flags = flags; 538 DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags)); 539 540 #if defined(ULPT_DEBUG) && defined(__FreeBSD__) 541 /* Ignoring these flags might not be a good idea */ 542 if ((flags & ~ULPT_NOPRIME) != 0) 543 printf("ulptopen: flags ignored: %b\n", flags, 544 "\20\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS"); 545 #endif 546 547 548 error = 0; 549 sc->sc_refcnt++; 550 551 if ((flags & ULPT_NOPRIME) == 0) 552 ulpt_reset(sc); 553 554 for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) { 555 DPRINTF(("ulpt_open: waiting a while\n")); 556 if (spin >= TIMEOUT) { 557 error = EBUSY; 558 sc->sc_state = 0; 559 goto done; 560 } 561 562 /* wait 1/4 second, give up if we get a signal */ 563 error = tsleep((caddr_t)sc, LPTPRI | PCATCH, "ulptop", STEP); 564 if (error != EWOULDBLOCK) { 565 sc->sc_state = 0; 566 goto done; 567 } 568 569 if (sc->sc_dying) { 570 error = ENXIO; 571 sc->sc_state = 0; 572 goto done; 573 } 574 } 575 576 err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe); 577 if (err) { 578 error = EIO; 579 goto err0; 580 } 581 sc->sc_out_xfer = usbd_alloc_xfer(sc->sc_udev); 582 if (sc->sc_out_xfer == NULL) { 583 error = ENOMEM; 584 goto err1; 585 } 586 sc->sc_out_buf = usbd_alloc_buffer(sc->sc_out_xfer, ULPT_BSIZE); 587 if (sc->sc_out_buf == NULL) { 588 error = ENOMEM; 589 goto err2; 590 } 591 592 if (ulptusein && sc->sc_in != -1) { 593 DPRINTF(("ulpt_open: open input pipe\n")); 594 err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe); 595 if (err) { 596 error = EIO; 597 goto err2; 598 } 599 sc->sc_in_xfer = usbd_alloc_xfer(sc->sc_udev); 600 if (sc->sc_in_xfer == NULL) { 601 error = ENOMEM; 602 goto err3; 603 } 604 sc->sc_in_buf = usbd_alloc_buffer(sc->sc_in_xfer, ULPT_BSIZE); 605 if (sc->sc_in_buf == NULL) { 606 error = ENOMEM; 607 goto err4; 608 } 609 610 /* If it's not opened for read the set up a reader. */ 611 if (!(flags & FREAD)) { 612 DPRINTF(("ulpt_open: start read callout\n")); 613 usb_callout_init(sc->sc_read_callout); 614 usb_callout(sc->sc_read_callout, hz/5, ulpt_tick, sc); 615 sc->sc_has_callout = 1; 616 } 617 } 618 619 sc->sc_state = ULPT_OPEN; 620 goto done; 621 622 err4: 623 usbd_free_xfer(sc->sc_in_xfer); 624 sc->sc_in_xfer = NULL; 625 err3: 626 usbd_close_pipe(sc->sc_in_pipe); 627 sc->sc_in_pipe = NULL; 628 err2: 629 usbd_free_xfer(sc->sc_out_xfer); 630 sc->sc_out_xfer = NULL; 631 err1: 632 usbd_close_pipe(sc->sc_out_pipe); 633 sc->sc_out_pipe = NULL; 634 err0: 635 sc->sc_state = 0; 636 637 done: 638 if (--sc->sc_refcnt < 0) 639 usb_detach_wakeup(USBDEV(sc->sc_dev)); 640 641 DPRINTF(("ulptopen: done, error=%d\n", error)); 642 return (error); 643 } 644 645 int 646 ulpt_statusmsg(u_char status, struct ulpt_softc *sc) 647 { 648 u_char new; 649 650 status = (status ^ LPS_INVERT) & LPS_MASK; 651 new = status & ~sc->sc_laststatus; 652 sc->sc_laststatus = status; 653 654 if (new & LPS_SELECT) 655 log(LOG_NOTICE, "%s: offline\n", USBDEVNAME(sc->sc_dev)); 656 else if (new & LPS_NOPAPER) 657 log(LOG_NOTICE, "%s: out of paper\n", USBDEVNAME(sc->sc_dev)); 658 else if (new & LPS_NERR) 659 log(LOG_NOTICE, "%s: output error\n", USBDEVNAME(sc->sc_dev)); 660 661 return (status); 662 } 663 664 int 665 ulptclose(dev_t dev, int flag, int mode, usb_proc_ptr p) 666 { 667 struct ulpt_softc *sc; 668 669 USB_GET_SC(ulpt, ULPTUNIT(dev), sc); 670 671 if (sc->sc_state != ULPT_OPEN) 672 /* We are being forced to close before the open completed. */ 673 return (0); 674 675 if (sc->sc_has_callout) { 676 usb_uncallout(sc->sc_read_callout, ulpt_tick, sc); 677 sc->sc_has_callout = 0; 678 } 679 680 if (sc->sc_out_pipe != NULL) { 681 usbd_abort_pipe(sc->sc_out_pipe); 682 usbd_close_pipe(sc->sc_out_pipe); 683 sc->sc_out_pipe = NULL; 684 } 685 if (sc->sc_out_xfer != NULL) { 686 usbd_free_xfer(sc->sc_out_xfer); 687 sc->sc_out_xfer = NULL; 688 } 689 690 if (sc->sc_in_pipe != NULL) { 691 usbd_abort_pipe(sc->sc_in_pipe); 692 usbd_close_pipe(sc->sc_in_pipe); 693 sc->sc_in_pipe = NULL; 694 } 695 if (sc->sc_in_xfer != NULL) { 696 usbd_free_xfer(sc->sc_in_xfer); 697 sc->sc_in_xfer = NULL; 698 } 699 700 sc->sc_state = 0; 701 702 DPRINTF(("ulptclose: closed\n")); 703 return (0); 704 } 705 706 int 707 ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags) 708 { 709 u_int32_t n; 710 int error = 0; 711 void *bufp; 712 usbd_xfer_handle xfer; 713 usbd_status err; 714 715 DPRINTF(("ulptwrite\n")); 716 xfer = sc->sc_out_xfer; 717 bufp = sc->sc_out_buf; 718 while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) { 719 ulpt_statusmsg(ulpt_status(sc), sc); 720 error = uiomove(bufp, n, uio); 721 if (error) 722 break; 723 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n)); 724 err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY, 725 USBD_NO_TIMEOUT, bufp, &n, "ulptwr"); 726 if (err) { 727 DPRINTF(("ulptwrite: error=%d\n", err)); 728 error = EIO; 729 break; 730 } 731 } 732 733 return (error); 734 } 735 736 int 737 ulptwrite(dev_t dev, struct uio *uio, int flags) 738 { 739 struct ulpt_softc *sc; 740 int error; 741 742 USB_GET_SC(ulpt, ULPTUNIT(dev), sc); 743 744 if (sc->sc_dying) 745 return (EIO); 746 747 sc->sc_refcnt++; 748 error = ulpt_do_write(sc, uio, flags); 749 if (--sc->sc_refcnt < 0) 750 usb_detach_wakeup(USBDEV(sc->sc_dev)); 751 return (error); 752 } 753 754 int 755 ulpt_do_read(struct ulpt_softc *sc, struct uio *uio, int flags) 756 { 757 u_int32_t n, on; 758 int error = 0; 759 void *bufp; 760 usbd_xfer_handle xfer; 761 usbd_status err; 762 763 DPRINTF(("ulptread\n")); 764 765 if (sc->sc_in_pipe == NULL) 766 return 0; 767 768 xfer = sc->sc_in_xfer; 769 bufp = sc->sc_in_buf; 770 while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) { 771 DPRINTFN(1, ("ulptread: transfer %d bytes\n", n)); 772 on = n; 773 err = usbd_bulk_transfer(xfer, sc->sc_in_pipe, 774 USBD_NO_COPY | USBD_SHORT_XFER_OK, 775 USBD_NO_TIMEOUT, bufp, &n, "ulptrd"); 776 if (err) { 777 DPRINTF(("ulptread: error=%d\n", err)); 778 error = EIO; 779 break; 780 } 781 error = uiomove(bufp, n, uio); 782 if (error) 783 break; 784 if (on != n) 785 break; 786 } 787 788 return (error); 789 } 790 791 int 792 ulptread(dev_t dev, struct uio *uio, int flags) 793 { 794 struct ulpt_softc *sc; 795 int error; 796 797 USB_GET_SC(ulpt, ULPTUNIT(dev), sc); 798 799 if (sc->sc_dying) 800 return (EIO); 801 802 sc->sc_refcnt++; 803 error = ulpt_do_read(sc, uio, flags); 804 if (--sc->sc_refcnt < 0) 805 usb_detach_wakeup(USBDEV(sc->sc_dev)); 806 return (error); 807 } 808 809 void 810 ulpt_read_cb(usbd_xfer_handle xfer, usbd_private_handle priv, 811 usbd_status status) 812 { 813 usbd_status err; 814 u_int32_t n; 815 usbd_private_handle xsc; 816 struct ulpt_softc *sc; 817 818 usbd_get_xfer_status(xfer, &xsc, NULL, &n, &err); 819 sc = xsc; 820 821 DPRINTFN(1,("ulpt_read_cb: start sc=%p, err=%d n=%d\n", sc, err, n)); 822 823 #ifdef ULPT_DEBUG 824 if (!err && n > 0) 825 DPRINTF(("ulpt_tick: discarding %d bytes\n", n)); 826 #endif 827 if (!err || err == USBD_TIMEOUT) 828 usb_callout(sc->sc_read_callout, hz / ULPT_READS_PER_SEC, 829 ulpt_tick, sc); 830 } 831 832 void 833 ulpt_tick(void *xsc) 834 { 835 struct ulpt_softc *sc = xsc; 836 usbd_status err; 837 838 if (sc == NULL || sc->sc_dying) 839 return; 840 841 DPRINTFN(1,("ulpt_tick: start sc=%p\n", sc)); 842 843 usbd_setup_xfer(sc->sc_in_xfer, sc->sc_in_pipe, sc, sc->sc_in_buf, 844 ULPT_BSIZE, USBD_NO_COPY | USBD_SHORT_XFER_OK, 845 ULPT_READ_TIMO, ulpt_read_cb); 846 err = usbd_transfer(sc->sc_in_xfer); 847 DPRINTFN(1,("ulpt_tick: err=%d\n", err)); 848 } 849 850 int 851 ulptioctl(dev_t dev, u_long cmd, caddr_t data, int flag, usb_proc_ptr p) 852 { 853 int error = 0; 854 855 switch (cmd) { 856 default: 857 error = ENODEV; 858 } 859 860 return (error); 861 } 862 863 #if 0 864 /* XXX This does not belong here. */ 865 /* 866 * Print select parts of a IEEE 1284 device ID. 867 */ 868 void 869 ieee1284_print_id(char *str) 870 { 871 char *p, *q; 872 873 for (p = str-1; p; p = strchr(p, ';')) { 874 p++; /* skip ';' */ 875 if (strncmp(p, "MFG:", 4) == 0 || 876 strncmp(p, "MANUFACTURER:", 14) == 0 || 877 strncmp(p, "MDL:", 4) == 0 || 878 strncmp(p, "MODEL:", 6) == 0) { 879 q = strchr(p, ';'); 880 if (q) 881 printf("%.*s", (int)(q - p + 1), p); 882 } 883 } 884 } 885 #endif 886 887 #if defined(__FreeBSD__) 888 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, 0); 889 #endif 890 891 892 893 894 895 #if 0 896 usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc, 897 sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK, 898 USBD_NO_TIMEOUT, ulpt_input); 899 usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc, 900 sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK, 901 USBD_NO_TIMEOUT, ulpt_input); 902 usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */ 903 #endif 904