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sys/dev/usb/ulpt.c
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1 /* $NetBSD: ulpt.c,v 1.61.2.2 2004/07/10 13:40:54 tron 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 1.61.2.2 2004/07/10 13:40:54 tron 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 255 256 /* 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 } 283 284 epcount = 0; 285 (void)usbd_endpoint_count(iface, &epcount); 286 287 sc->sc_in = -1; 288 sc->sc_out = -1; 289 for (i = 0; i < epcount; i++) { 290 ed = usbd_interface2endpoint_descriptor(iface, i); 291 if (ed == NULL) { 292 printf("%s: couldn't get ep %d\n", 293 USBDEVNAME(sc->sc_dev), i); 294 USB_ATTACH_ERROR_RETURN; 295 } 296 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 297 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 298 sc->sc_in = ed->bEndpointAddress; 299 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 300 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 301 sc->sc_out = ed->bEndpointAddress; 302 } 303 } 304 if (sc->sc_out == -1) { 305 printf("%s: could not find bulk out endpoint\n", 306 USBDEVNAME(sc->sc_dev)); 307 sc->sc_dying = 1; 308 USB_ATTACH_ERROR_RETURN; 309 } 310 311 if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) { 312 /* This device doesn't handle reading properly. */ 313 sc->sc_in = -1; 314 } 315 316 printf("%s: using %s-directional mode\n", USBDEVNAME(sc->sc_dev), 317 sc->sc_in >= 0 ? "bi" : "uni"); 318 319 DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out)); 320 321 sc->sc_iface = iface; 322 sc->sc_ifaceno = id->bInterfaceNumber; 323 sc->sc_udev = dev; 324 325 #if 0 326 /* 327 * This code is disabled because for some mysterious reason it causes 328 * printing not to work. But only sometimes, and mostly with 329 * UHCI and less often with OHCI. *sigh* 330 */ 331 { 332 usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev); 333 usb_device_request_t req; 334 int len, alen; 335 336 req.bmRequestType = UT_READ_CLASS_INTERFACE; 337 req.bRequest = UR_GET_DEVICE_ID; 338 USETW(req.wValue, cd->bConfigurationValue); 339 USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting); 340 USETW(req.wLength, sizeof devinfo - 1); 341 err = usbd_do_request_flags(dev, &req, devinfo, USBD_SHORT_XFER_OK, 342 &alen, USBD_DEFAULT_TIMEOUT); 343 if (err) { 344 printf("%s: cannot get device id\n", USBDEVNAME(sc->sc_dev)); 345 } else if (alen <= 2) { 346 printf("%s: empty device id, no printer connected?\n", 347 USBDEVNAME(sc->sc_dev)); 348 } else { 349 /* devinfo now contains an IEEE-1284 device ID */ 350 len = ((devinfo[0] & 0xff) << 8) | (devinfo[1] & 0xff); 351 if (len > sizeof devinfo - 3) 352 len = sizeof devinfo - 3; 353 devinfo[len] = 0; 354 printf("%s: device id <", USBDEVNAME(sc->sc_dev)); 355 ieee1284_print_id(devinfo+2); 356 printf(">\n"); 357 } 358 } 359 #endif 360 361 #if defined(__FreeBSD__) 362 sc->dev = make_dev(&ulpt_cdevsw, device_get_unit(self), 363 UID_ROOT, GID_OPERATOR, 0644, "ulpt%d", device_get_unit(self)); 364 sc->dev_noprime = make_dev(&ulpt_cdevsw, 365 device_get_unit(self)|ULPT_NOPRIME, 366 UID_ROOT, GID_OPERATOR, 0644, "unlpt%d", device_get_unit(self)); 367 #endif 368 369 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 370 USBDEV(sc->sc_dev)); 371 372 USB_ATTACH_SUCCESS_RETURN; 373 } 374 375 #if defined(__NetBSD__) || defined(__OpenBSD__) 376 int 377 ulpt_activate(device_ptr_t self, enum devact act) 378 { 379 struct ulpt_softc *sc = (struct ulpt_softc *)self; 380 381 switch (act) { 382 case DVACT_ACTIVATE: 383 return (EOPNOTSUPP); 384 385 case DVACT_DEACTIVATE: 386 sc->sc_dying = 1; 387 break; 388 } 389 return (0); 390 } 391 #endif 392 393 USB_DETACH(ulpt) 394 { 395 USB_DETACH_START(ulpt, sc); 396 int s; 397 #if defined(__NetBSD__) || defined(__OpenBSD__) 398 int maj, mn; 399 #elif defined(__FreeBSD__) 400 struct vnode *vp; 401 #endif 402 403 DPRINTF(("ulpt_detach: sc=%p\n", sc)); 404 405 sc->sc_dying = 1; 406 if (sc->sc_out_pipe != NULL) 407 usbd_abort_pipe(sc->sc_out_pipe); 408 if (sc->sc_in_pipe != NULL) 409 usbd_abort_pipe(sc->sc_in_pipe); 410 411 s = splusb(); 412 if (--sc->sc_refcnt >= 0) { 413 /* There is noone to wake, aborting the pipe is enough */ 414 /* Wait for processes to go away. */ 415 usb_detach_wait(USBDEV(sc->sc_dev)); 416 } 417 splx(s); 418 419 #if defined(__NetBSD__) || defined(__OpenBSD__) 420 /* locate the major number */ 421 #if defined(__NetBSD__) 422 maj = cdevsw_lookup_major(&ulpt_cdevsw); 423 #elif defined(__OpenBSD__) 424 for (maj = 0; maj < nchrdev; maj++) 425 if (cdevsw[maj].d_open == ulptopen) 426 break; 427 #endif 428 429 /* Nuke the vnodes for any open instances (calls close). */ 430 mn = self->dv_unit; 431 vdevgone(maj, mn, mn, VCHR); 432 vdevgone(maj, mn | ULPT_NOPRIME , mn | ULPT_NOPRIME, VCHR); 433 #elif defined(__FreeBSD__) 434 vp = SLIST_FIRST(&sc->dev->si_hlist); 435 if (vp) 436 VOP_REVOKE(vp, REVOKEALL); 437 vp = SLIST_FIRST(&sc->dev_noprime->si_hlist); 438 if (vp) 439 VOP_REVOKE(vp, REVOKEALL); 440 441 destroy_dev(sc->dev); 442 destroy_dev(sc->dev_noprime); 443 #endif 444 445 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 446 USBDEV(sc->sc_dev)); 447 448 return (0); 449 } 450 451 int 452 ulpt_status(struct ulpt_softc *sc) 453 { 454 usb_device_request_t req; 455 usbd_status err; 456 u_char status; 457 458 req.bmRequestType = UT_READ_CLASS_INTERFACE; 459 req.bRequest = UR_GET_PORT_STATUS; 460 USETW(req.wValue, 0); 461 USETW(req.wIndex, sc->sc_ifaceno); 462 USETW(req.wLength, 1); 463 err = usbd_do_request(sc->sc_udev, &req, &status); 464 DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err)); 465 if (!err) 466 return (status); 467 else 468 return (0); 469 } 470 471 void 472 ulpt_reset(struct ulpt_softc *sc) 473 { 474 usb_device_request_t req; 475 476 DPRINTFN(1, ("ulpt_reset\n")); 477 req.bRequest = UR_SOFT_RESET; 478 USETW(req.wValue, 0); 479 USETW(req.wIndex, sc->sc_ifaceno); 480 USETW(req.wLength, 0); 481 482 /* 483 * There was a mistake in the USB printer 1.0 spec that gave the 484 * request type as UT_WRITE_CLASS_OTHER; it should have been 485 * UT_WRITE_CLASS_INTERFACE. Many printers use the old one, 486 * so we try both. 487 */ 488 req.bmRequestType = UT_WRITE_CLASS_OTHER; 489 if (usbd_do_request(sc->sc_udev, &req, 0)) { /* 1.0 */ 490 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 491 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */ 492 } 493 } 494 495 #if 0 496 static void 497 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 498 { 499 struct ulpt_softc *sc = priv; 500 501 DPRINTFN(2,("ulpt_input: got some data\n")); 502 /* Do it again. */ 503 if (xfer == sc->sc_in_xfer1) 504 usbd_transfer(sc->sc_in_xfer2); 505 else 506 usbd_transfer(sc->sc_in_xfer1); 507 } 508 #endif 509 510 int ulptusein = 1; 511 512 /* 513 * Reset the printer, then wait until it's selected and not busy. 514 */ 515 int 516 ulptopen(dev_t dev, int flag, int mode, usb_proc_ptr p) 517 { 518 u_char flags = ULPTFLAGS(dev); 519 struct ulpt_softc *sc; 520 usbd_status err; 521 int spin, error; 522 523 USB_GET_SC_OPEN(ulpt, ULPTUNIT(dev), sc); 524 525 if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying) 526 return (ENXIO); 527 528 if (sc->sc_state) 529 return (EBUSY); 530 531 sc->sc_state = ULPT_INIT; 532 sc->sc_flags = flags; 533 DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags)); 534 535 #if defined(ULPT_DEBUG) && defined(__FreeBSD__) 536 /* Ignoring these flags might not be a good idea */ 537 if ((flags & ~ULPT_NOPRIME) != 0) 538 printf("ulptopen: flags ignored: %b\n", flags, 539 "\2\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS"); 540 #endif 541 542 543 error = 0; 544 sc->sc_refcnt++; 545 546 #if 0 /* XXX causes some printers to disconnect */ 547 if ((flags & ULPT_NOPRIME) == 0) 548 ulpt_reset(sc); 549 #endif 550 551 for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) { 552 DPRINTF(("ulpt_open: waiting a while\n")); 553 if (spin >= TIMEOUT) { 554 error = EBUSY; 555 sc->sc_state = 0; 556 goto done; 557 } 558 559 /* wait 1/4 second, give up if we get a signal */ 560 error = tsleep((caddr_t)sc, LPTPRI | PCATCH, "ulptop", STEP); 561 if (error != EWOULDBLOCK) { 562 sc->sc_state = 0; 563 goto done; 564 } 565 566 if (sc->sc_dying) { 567 error = ENXIO; 568 sc->sc_state = 0; 569 goto done; 570 } 571 } 572 573 err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe); 574 if (err) { 575 error = EIO; 576 goto err0; 577 } 578 sc->sc_out_xfer = usbd_alloc_xfer(sc->sc_udev); 579 if (sc->sc_out_xfer == NULL) { 580 error = ENOMEM; 581 goto err1; 582 } 583 sc->sc_out_buf = usbd_alloc_buffer(sc->sc_out_xfer, ULPT_BSIZE); 584 if (sc->sc_out_buf == NULL) { 585 error = ENOMEM; 586 goto err2; 587 } 588 589 if (ulptusein && sc->sc_in != -1) { 590 DPRINTF(("ulpt_open: open input pipe\n")); 591 err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe); 592 if (err) { 593 error = EIO; 594 goto err2; 595 } 596 sc->sc_in_xfer = usbd_alloc_xfer(sc->sc_udev); 597 if (sc->sc_in_xfer == NULL) { 598 error = ENOMEM; 599 goto err3; 600 } 601 sc->sc_in_buf = usbd_alloc_buffer(sc->sc_in_xfer, ULPT_BSIZE); 602 if (sc->sc_in_buf == NULL) { 603 error = ENOMEM; 604 goto err4; 605 } 606 607 /* If it's not opened for read the set up a reader. */ 608 if (!(flags & FREAD)) { 609 DPRINTF(("ulpt_open: start read callout\n")); 610 usb_callout_init(sc->sc_read_callout); 611 usb_callout(sc->sc_read_callout, hz/5, ulpt_tick, sc); 612 sc->sc_has_callout = 1; 613 } 614 } 615 616 sc->sc_state = ULPT_OPEN; 617 goto done; 618 619 err4: 620 usbd_free_xfer(sc->sc_in_xfer); 621 sc->sc_in_xfer = NULL; 622 err3: 623 usbd_close_pipe(sc->sc_in_pipe); 624 sc->sc_in_pipe = NULL; 625 err2: 626 usbd_free_xfer(sc->sc_out_xfer); 627 sc->sc_out_xfer = NULL; 628 err1: 629 usbd_close_pipe(sc->sc_out_pipe); 630 sc->sc_out_pipe = NULL; 631 err0: 632 sc->sc_state = 0; 633 634 done: 635 if (--sc->sc_refcnt < 0) 636 usb_detach_wakeup(USBDEV(sc->sc_dev)); 637 638 DPRINTF(("ulptopen: done, error=%d\n", error)); 639 return (error); 640 } 641 642 int 643 ulpt_statusmsg(u_char status, struct ulpt_softc *sc) 644 { 645 u_char new; 646 647 status = (status ^ LPS_INVERT) & LPS_MASK; 648 new = status & ~sc->sc_laststatus; 649 sc->sc_laststatus = status; 650 651 if (new & LPS_SELECT) 652 log(LOG_NOTICE, "%s: offline\n", USBDEVNAME(sc->sc_dev)); 653 else if (new & LPS_NOPAPER) 654 log(LOG_NOTICE, "%s: out of paper\n", USBDEVNAME(sc->sc_dev)); 655 else if (new & LPS_NERR) 656 log(LOG_NOTICE, "%s: output error\n", USBDEVNAME(sc->sc_dev)); 657 658 return (status); 659 } 660 661 int 662 ulptclose(dev_t dev, int flag, int mode, usb_proc_ptr p) 663 { 664 struct ulpt_softc *sc; 665 666 USB_GET_SC(ulpt, ULPTUNIT(dev), sc); 667 668 if (sc->sc_state != ULPT_OPEN) 669 /* We are being forced to close before the open completed. */ 670 return (0); 671 672 if (sc->sc_has_callout) { 673 usb_uncallout(sc->sc_read_callout, ulpt_tick, sc); 674 sc->sc_has_callout = 0; 675 } 676 677 if (sc->sc_out_pipe != NULL) { 678 usbd_abort_pipe(sc->sc_out_pipe); 679 usbd_close_pipe(sc->sc_out_pipe); 680 sc->sc_out_pipe = NULL; 681 } 682 if (sc->sc_out_xfer != NULL) { 683 usbd_free_xfer(sc->sc_out_xfer); 684 sc->sc_out_xfer = NULL; 685 } 686 687 if (sc->sc_in_pipe != NULL) { 688 usbd_abort_pipe(sc->sc_in_pipe); 689 usbd_close_pipe(sc->sc_in_pipe); 690 sc->sc_in_pipe = NULL; 691 } 692 if (sc->sc_in_xfer != NULL) { 693 usbd_free_xfer(sc->sc_in_xfer); 694 sc->sc_in_xfer = NULL; 695 } 696 697 sc->sc_state = 0; 698 699 DPRINTF(("ulptclose: closed\n")); 700 return (0); 701 } 702 703 int 704 ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags) 705 { 706 u_int32_t n; 707 int error = 0; 708 void *bufp; 709 usbd_xfer_handle xfer; 710 usbd_status err; 711 712 DPRINTF(("ulptwrite\n")); 713 xfer = sc->sc_out_xfer; 714 bufp = sc->sc_out_buf; 715 while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) { 716 ulpt_statusmsg(ulpt_status(sc), sc); 717 error = uiomove(bufp, n, uio); 718 if (error) 719 break; 720 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n)); 721 err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY, 722 USBD_NO_TIMEOUT, bufp, &n, "ulptwr"); 723 if (err) { 724 DPRINTF(("ulptwrite: error=%d\n", err)); 725 error = EIO; 726 break; 727 } 728 } 729 730 return (error); 731 } 732 733 int 734 ulptwrite(dev_t dev, struct uio *uio, int flags) 735 { 736 struct ulpt_softc *sc; 737 int error; 738 739 USB_GET_SC(ulpt, ULPTUNIT(dev), sc); 740 741 if (sc->sc_dying) 742 return (EIO); 743 744 sc->sc_refcnt++; 745 error = ulpt_do_write(sc, uio, flags); 746 if (--sc->sc_refcnt < 0) 747 usb_detach_wakeup(USBDEV(sc->sc_dev)); 748 return (error); 749 } 750 751 int 752 ulpt_do_read(struct ulpt_softc *sc, struct uio *uio, int flags) 753 { 754 u_int32_t n, on; 755 int error = 0; 756 void *bufp; 757 usbd_xfer_handle xfer; 758 usbd_status err; 759 760 DPRINTF(("ulptread\n")); 761 762 if (sc->sc_in_pipe == NULL) 763 return 0; 764 765 xfer = sc->sc_in_xfer; 766 bufp = sc->sc_in_buf; 767 while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) { 768 DPRINTFN(1, ("ulptread: transfer %d bytes\n", n)); 769 on = n; 770 err = usbd_bulk_transfer(xfer, sc->sc_in_pipe, 771 USBD_NO_COPY | USBD_SHORT_XFER_OK, 772 USBD_NO_TIMEOUT, bufp, &n, "ulptrd"); 773 if (err) { 774 DPRINTF(("ulptread: error=%d\n", err)); 775 error = EIO; 776 break; 777 } 778 error = uiomove(bufp, n, uio); 779 if (error) 780 break; 781 if (on != n) 782 break; 783 } 784 785 return (error); 786 } 787 788 int 789 ulptread(dev_t dev, struct uio *uio, int flags) 790 { 791 struct ulpt_softc *sc; 792 int error; 793 794 USB_GET_SC(ulpt, ULPTUNIT(dev), sc); 795 796 if (sc->sc_dying) 797 return (EIO); 798 799 sc->sc_refcnt++; 800 error = ulpt_do_read(sc, uio, flags); 801 if (--sc->sc_refcnt < 0) 802 usb_detach_wakeup(USBDEV(sc->sc_dev)); 803 return (error); 804 } 805 806 void 807 ulpt_read_cb(usbd_xfer_handle xfer, usbd_private_handle priv, 808 usbd_status status) 809 { 810 usbd_status err; 811 u_int32_t n; 812 usbd_private_handle xsc; 813 struct ulpt_softc *sc; 814 815 usbd_get_xfer_status(xfer, &xsc, NULL, &n, &err); 816 sc = xsc; 817 818 DPRINTFN(1,("ulpt_read_cb: start sc=%p, err=%d n=%d\n", sc, err, n)); 819 820 #ifdef ULPT_DEBUG 821 if (!err && n > 0) 822 DPRINTF(("ulpt_tick: discarding %d bytes\n", n)); 823 #endif 824 if (!err || err == USBD_TIMEOUT) 825 usb_callout(sc->sc_read_callout, hz / ULPT_READS_PER_SEC, 826 ulpt_tick, sc); 827 } 828 829 void 830 ulpt_tick(void *xsc) 831 { 832 struct ulpt_softc *sc = xsc; 833 usbd_status err; 834 835 if (sc == NULL || sc->sc_dying) 836 return; 837 838 DPRINTFN(1,("ulpt_tick: start sc=%p\n", sc)); 839 840 usbd_setup_xfer(sc->sc_in_xfer, sc->sc_in_pipe, sc, sc->sc_in_buf, 841 ULPT_BSIZE, USBD_NO_COPY | USBD_SHORT_XFER_OK, 842 ULPT_READ_TIMO, ulpt_read_cb); 843 err = usbd_transfer(sc->sc_in_xfer); 844 DPRINTFN(1,("ulpt_tick: err=%d\n", err)); 845 } 846 847 int 848 ulptioctl(dev_t dev, u_long cmd, caddr_t data, int flag, usb_proc_ptr p) 849 { 850 int error = 0; 851 852 switch (cmd) { 853 default: 854 error = ENODEV; 855 } 856 857 return (error); 858 } 859 860 #if 0 861 /* XXX This does not belong here. */ 862 /* 863 * Print select parts of a IEEE 1284 device ID. 864 */ 865 void 866 ieee1284_print_id(char *str) 867 { 868 char *p, *q; 869 870 for (p = str-1; p; p = strchr(p, ';')) { 871 p++; /* skip ';' */ 872 if (strncmp(p, "MFG:", 4) == 0 || 873 strncmp(p, "MANUFACTURER:", 14) == 0 || 874 strncmp(p, "MDL:", 4) == 0 || 875 strncmp(p, "MODEL:", 6) == 0) { 876 q = strchr(p, ';'); 877 if (q) 878 printf("%.*s", (int)(q - p + 1), p); 879 } 880 } 881 } 882 #endif 883 884 #if defined(__FreeBSD__) 885 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, 0); 886 #endif 887 888 889 890 891 892 #if 0 893 usbd_setup_xfer(sc->sc_in_xfer1, 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_setup_xfer(sc->sc_in_xfer2, 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_transfer(sc->sc_in_xfer1); /* ignore failed start */ 900 #endif
Cache object: d947309764bd6d48db664b92957e02d7
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