1 /* $NetBSD: ulpt.c,v 1.76 2006/11/16 01:33:27 christos 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 1.76 2006/11/16 01:33:27 christos 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, D_OTHER, 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 const usb_interface_descriptor_t *id; 226 usbd_status err; 227 char *devinfop; 228 usb_endpoint_descriptor_t *ed; 229 u_int8_t epcount; 230 int i, altno; 231 usbd_desc_iter_t iter; 232 233 DPRINTFN(10,("ulpt_attach: sc=%p\n", sc)); 234 235 devinfop = usbd_devinfo_alloc(dev, 0); 236 USB_ATTACH_SETUP; 237 printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), 238 devinfop, ifcd->bInterfaceClass, ifcd->bInterfaceSubClass); 239 usbd_devinfo_free(devinfop); 240 241 /* Loop through descriptors looking for a bidir mode. */ 242 usb_desc_iter_init(dev, &iter); 243 for (altno = 0;;) { 244 id = (const usb_interface_descriptor_t *)usb_desc_iter_next(&iter); 245 if (!id) 246 break; 247 if (id->bDescriptorType == UDESC_INTERFACE && 248 id->bInterfaceNumber == ifcd->bInterfaceNumber) { 249 if (id->bInterfaceClass == UICLASS_PRINTER && 250 id->bInterfaceSubClass == UISUBCLASS_PRINTER && 251 (id->bInterfaceProtocol == UIPROTO_PRINTER_BI /*|| 252 id->bInterfaceProtocol == UIPROTO_PRINTER_1284*/)) 253 goto found; 254 altno++; 255 } 256 } 257 id = ifcd; /* not found, use original */ 258 found: 259 if (id != ifcd) { 260 /* Found a new bidir setting */ 261 DPRINTF(("ulpt_attach: set altno = %d\n", altno)); 262 err = usbd_set_interface(iface, altno); 263 if (err) { 264 printf("%s: setting alternate interface failed\n", 265 USBDEVNAME(sc->sc_dev)); 266 sc->sc_dying = 1; 267 USB_ATTACH_ERROR_RETURN; 268 } 269 } 270 271 epcount = 0; 272 (void)usbd_endpoint_count(iface, &epcount); 273 274 sc->sc_in = -1; 275 sc->sc_out = -1; 276 for (i = 0; i < epcount; i++) { 277 ed = usbd_interface2endpoint_descriptor(iface, i); 278 if (ed == NULL) { 279 printf("%s: couldn't get ep %d\n", 280 USBDEVNAME(sc->sc_dev), i); 281 USB_ATTACH_ERROR_RETURN; 282 } 283 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 284 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 285 sc->sc_in = ed->bEndpointAddress; 286 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 287 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 288 sc->sc_out = ed->bEndpointAddress; 289 } 290 } 291 if (sc->sc_out == -1) { 292 printf("%s: could not find bulk out endpoint\n", 293 USBDEVNAME(sc->sc_dev)); 294 sc->sc_dying = 1; 295 USB_ATTACH_ERROR_RETURN; 296 } 297 298 if (usbd_get_quirks(dev)->uq_flags & UQ_BROKEN_BIDIR) { 299 /* This device doesn't handle reading properly. */ 300 sc->sc_in = -1; 301 } 302 303 printf("%s: using %s-directional mode\n", USBDEVNAME(sc->sc_dev), 304 sc->sc_in >= 0 ? "bi" : "uni"); 305 306 DPRINTFN(10, ("ulpt_attach: bulk=%d\n", sc->sc_out)); 307 308 sc->sc_iface = iface; 309 sc->sc_ifaceno = id->bInterfaceNumber; 310 sc->sc_udev = dev; 311 312 #if 0 313 /* 314 * This code is disabled because for some mysterious reason it causes 315 * printing not to work. But only sometimes, and mostly with 316 * UHCI and less often with OHCI. *sigh* 317 */ 318 { 319 usb_config_descriptor_t *cd = usbd_get_config_descriptor(dev); 320 usb_device_request_t req; 321 int len, alen; 322 323 req.bmRequestType = UT_READ_CLASS_INTERFACE; 324 req.bRequest = UR_GET_DEVICE_ID; 325 USETW(req.wValue, cd->bConfigurationValue); 326 USETW2(req.wIndex, id->bInterfaceNumber, id->bAlternateSetting); 327 USETW(req.wLength, DEVINFOSIZE - 1); 328 err = usbd_do_request_flags(dev, &req, devinfop, USBD_SHORT_XFER_OK, 329 &alen, USBD_DEFAULT_TIMEOUT); 330 if (err) { 331 printf("%s: cannot get device id\n", USBDEVNAME(sc->sc_dev)); 332 } else if (alen <= 2) { 333 printf("%s: empty device id, no printer connected?\n", 334 USBDEVNAME(sc->sc_dev)); 335 } else { 336 /* devinfop now contains an IEEE-1284 device ID */ 337 len = ((devinfop[0] & 0xff) << 8) | (devinfop[1] & 0xff); 338 if (len > DEVINFOSIZE - 3) 339 len = DEVINFOSIZE - 3; 340 devinfop[len] = 0; 341 printf("%s: device id <", USBDEVNAME(sc->sc_dev)); 342 ieee1284_print_id(devinfop+2); 343 printf(">\n"); 344 } 345 } 346 #endif 347 348 #if defined(__FreeBSD__) 349 sc->dev = make_dev(&ulpt_cdevsw, device_get_unit(self), 350 UID_ROOT, GID_OPERATOR, 0644, "ulpt%d", device_get_unit(self)); 351 sc->dev_noprime = make_dev(&ulpt_cdevsw, 352 device_get_unit(self)|ULPT_NOPRIME, 353 UID_ROOT, GID_OPERATOR, 0644, "unlpt%d", device_get_unit(self)); 354 #endif 355 356 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 357 USBDEV(sc->sc_dev)); 358 359 USB_ATTACH_SUCCESS_RETURN; 360 } 361 362 #if defined(__NetBSD__) || defined(__OpenBSD__) 363 int 364 ulpt_activate(device_ptr_t self, enum devact act) 365 { 366 struct ulpt_softc *sc = (struct ulpt_softc *)self; 367 368 switch (act) { 369 case DVACT_ACTIVATE: 370 return (EOPNOTSUPP); 371 372 case DVACT_DEACTIVATE: 373 sc->sc_dying = 1; 374 break; 375 } 376 return (0); 377 } 378 #endif 379 380 USB_DETACH(ulpt) 381 { 382 USB_DETACH_START(ulpt, sc); 383 int s; 384 #if defined(__NetBSD__) || defined(__OpenBSD__) 385 int maj, mn; 386 #elif defined(__FreeBSD__) 387 struct vnode *vp; 388 #endif 389 390 DPRINTF(("ulpt_detach: sc=%p\n", sc)); 391 392 sc->sc_dying = 1; 393 if (sc->sc_out_pipe != NULL) 394 usbd_abort_pipe(sc->sc_out_pipe); 395 if (sc->sc_in_pipe != NULL) 396 usbd_abort_pipe(sc->sc_in_pipe); 397 398 s = splusb(); 399 if (--sc->sc_refcnt >= 0) { 400 /* There is noone to wake, aborting the pipe is enough */ 401 /* Wait for processes to go away. */ 402 usb_detach_wait(USBDEV(sc->sc_dev)); 403 } 404 splx(s); 405 406 #if defined(__NetBSD__) || defined(__OpenBSD__) 407 /* locate the major number */ 408 #if defined(__NetBSD__) 409 maj = cdevsw_lookup_major(&ulpt_cdevsw); 410 #elif defined(__OpenBSD__) 411 for (maj = 0; maj < nchrdev; maj++) 412 if (cdevsw[maj].d_open == ulptopen) 413 break; 414 #endif 415 416 /* Nuke the vnodes for any open instances (calls close). */ 417 mn = device_unit(self); 418 vdevgone(maj, mn, mn, VCHR); 419 vdevgone(maj, mn | ULPT_NOPRIME , mn | ULPT_NOPRIME, VCHR); 420 #elif defined(__FreeBSD__) 421 vp = SLIST_FIRST(&sc->dev->si_hlist); 422 if (vp) 423 VOP_REVOKE(vp, REVOKEALL); 424 vp = SLIST_FIRST(&sc->dev_noprime->si_hlist); 425 if (vp) 426 VOP_REVOKE(vp, REVOKEALL); 427 428 destroy_dev(sc->dev); 429 destroy_dev(sc->dev_noprime); 430 #endif 431 432 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 433 USBDEV(sc->sc_dev)); 434 435 return (0); 436 } 437 438 int 439 ulpt_status(struct ulpt_softc *sc) 440 { 441 usb_device_request_t req; 442 usbd_status err; 443 u_char status; 444 445 req.bmRequestType = UT_READ_CLASS_INTERFACE; 446 req.bRequest = UR_GET_PORT_STATUS; 447 USETW(req.wValue, 0); 448 USETW(req.wIndex, sc->sc_ifaceno); 449 USETW(req.wLength, 1); 450 err = usbd_do_request(sc->sc_udev, &req, &status); 451 DPRINTFN(1, ("ulpt_status: status=0x%02x err=%d\n", status, err)); 452 if (!err) 453 return (status); 454 else 455 return (0); 456 } 457 458 void 459 ulpt_reset(struct ulpt_softc *sc) 460 { 461 usb_device_request_t req; 462 463 DPRINTFN(1, ("ulpt_reset\n")); 464 req.bRequest = UR_SOFT_RESET; 465 USETW(req.wValue, 0); 466 USETW(req.wIndex, sc->sc_ifaceno); 467 USETW(req.wLength, 0); 468 469 /* 470 * There was a mistake in the USB printer 1.0 spec that gave the 471 * request type as UT_WRITE_CLASS_OTHER; it should have been 472 * UT_WRITE_CLASS_INTERFACE. Many printers use the old one, 473 * so we try both. 474 */ 475 req.bmRequestType = UT_WRITE_CLASS_OTHER; 476 if (usbd_do_request(sc->sc_udev, &req, 0)) { /* 1.0 */ 477 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 478 (void)usbd_do_request(sc->sc_udev, &req, 0); /* 1.1 */ 479 } 480 } 481 482 #if 0 483 static void 484 ulpt_input(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 485 { 486 struct ulpt_softc *sc = priv; 487 488 DPRINTFN(2,("ulpt_input: got some data\n")); 489 /* Do it again. */ 490 if (xfer == sc->sc_in_xfer1) 491 usbd_transfer(sc->sc_in_xfer2); 492 else 493 usbd_transfer(sc->sc_in_xfer1); 494 } 495 #endif 496 497 int ulptusein = 1; 498 499 /* 500 * Reset the printer, then wait until it's selected and not busy. 501 */ 502 int 503 ulptopen(dev_t dev, int flag, int mode, struct lwp *l) 504 { 505 u_char flags = ULPTFLAGS(dev); 506 struct ulpt_softc *sc; 507 usbd_status err; 508 int spin, error; 509 510 USB_GET_SC_OPEN(ulpt, ULPTUNIT(dev), sc); 511 512 if (sc == NULL || sc->sc_iface == NULL || sc->sc_dying) 513 return (ENXIO); 514 515 if (sc->sc_state) 516 return (EBUSY); 517 518 sc->sc_state = ULPT_INIT; 519 sc->sc_flags = flags; 520 DPRINTF(("ulptopen: flags=0x%x\n", (unsigned)flags)); 521 522 #if defined(ULPT_DEBUG) && defined(__FreeBSD__) 523 /* Ignoring these flags might not be a good idea */ 524 if ((flags & ~ULPT_NOPRIME) != 0) 525 printf("ulptopen: flags ignored: %b\n", flags, 526 "\20\3POS_INIT\4POS_ACK\6PRIME_OPEN\7AUTOLF\10BYPASS"); 527 #endif 528 529 530 error = 0; 531 sc->sc_refcnt++; 532 533 #if 0 /* XXX causes some printers to disconnect */ 534 if ((flags & ULPT_NOPRIME) == 0) 535 ulpt_reset(sc); 536 #endif 537 538 for (spin = 0; (ulpt_status(sc) & LPS_SELECT) == 0; spin += STEP) { 539 DPRINTF(("ulpt_open: waiting a while\n")); 540 if (spin >= TIMEOUT) { 541 error = EBUSY; 542 sc->sc_state = 0; 543 goto done; 544 } 545 546 /* wait 1/4 second, give up if we get a signal */ 547 error = tsleep((caddr_t)sc, LPTPRI | PCATCH, "ulptop", STEP); 548 if (error != EWOULDBLOCK) { 549 sc->sc_state = 0; 550 goto done; 551 } 552 553 if (sc->sc_dying) { 554 error = ENXIO; 555 sc->sc_state = 0; 556 goto done; 557 } 558 } 559 560 err = usbd_open_pipe(sc->sc_iface, sc->sc_out, 0, &sc->sc_out_pipe); 561 if (err) { 562 error = EIO; 563 goto err0; 564 } 565 sc->sc_out_xfer = usbd_alloc_xfer(sc->sc_udev); 566 if (sc->sc_out_xfer == NULL) { 567 error = ENOMEM; 568 goto err1; 569 } 570 sc->sc_out_buf = usbd_alloc_buffer(sc->sc_out_xfer, ULPT_BSIZE); 571 if (sc->sc_out_buf == NULL) { 572 error = ENOMEM; 573 goto err2; 574 } 575 576 if (ulptusein && sc->sc_in != -1) { 577 DPRINTF(("ulpt_open: open input pipe\n")); 578 err = usbd_open_pipe(sc->sc_iface, sc->sc_in,0,&sc->sc_in_pipe); 579 if (err) { 580 error = EIO; 581 goto err2; 582 } 583 sc->sc_in_xfer = usbd_alloc_xfer(sc->sc_udev); 584 if (sc->sc_in_xfer == NULL) { 585 error = ENOMEM; 586 goto err3; 587 } 588 sc->sc_in_buf = usbd_alloc_buffer(sc->sc_in_xfer, ULPT_BSIZE); 589 if (sc->sc_in_buf == NULL) { 590 error = ENOMEM; 591 goto err4; 592 } 593 594 /* If it's not opened for read then set up a reader. */ 595 if (!(flag & FREAD)) { 596 DPRINTF(("ulpt_open: start read callout\n")); 597 usb_callout_init(sc->sc_read_callout); 598 usb_callout(sc->sc_read_callout, hz/5, ulpt_tick, sc); 599 sc->sc_has_callout = 1; 600 } 601 } 602 603 sc->sc_state = ULPT_OPEN; 604 goto done; 605 606 err4: 607 usbd_free_xfer(sc->sc_in_xfer); 608 sc->sc_in_xfer = NULL; 609 err3: 610 usbd_close_pipe(sc->sc_in_pipe); 611 sc->sc_in_pipe = NULL; 612 err2: 613 usbd_free_xfer(sc->sc_out_xfer); 614 sc->sc_out_xfer = NULL; 615 err1: 616 usbd_close_pipe(sc->sc_out_pipe); 617 sc->sc_out_pipe = NULL; 618 err0: 619 sc->sc_state = 0; 620 621 done: 622 if (--sc->sc_refcnt < 0) 623 usb_detach_wakeup(USBDEV(sc->sc_dev)); 624 625 DPRINTF(("ulptopen: done, error=%d\n", error)); 626 return (error); 627 } 628 629 int 630 ulpt_statusmsg(u_char status, struct ulpt_softc *sc) 631 { 632 u_char new; 633 634 status = (status ^ LPS_INVERT) & LPS_MASK; 635 new = status & ~sc->sc_laststatus; 636 sc->sc_laststatus = status; 637 638 if (new & LPS_SELECT) 639 log(LOG_NOTICE, "%s: offline\n", USBDEVNAME(sc->sc_dev)); 640 else if (new & LPS_NOPAPER) 641 log(LOG_NOTICE, "%s: out of paper\n", USBDEVNAME(sc->sc_dev)); 642 else if (new & LPS_NERR) 643 log(LOG_NOTICE, "%s: output error\n", USBDEVNAME(sc->sc_dev)); 644 645 return (status); 646 } 647 648 int 649 ulptclose(dev_t dev, int flag, int mode, 650 struct lwp *l) 651 { 652 struct ulpt_softc *sc; 653 654 USB_GET_SC(ulpt, ULPTUNIT(dev), sc); 655 656 if (sc->sc_state != ULPT_OPEN) 657 /* We are being forced to close before the open completed. */ 658 return (0); 659 660 if (sc->sc_has_callout) { 661 usb_uncallout(sc->sc_read_callout, ulpt_tick, sc); 662 sc->sc_has_callout = 0; 663 } 664 665 if (sc->sc_out_pipe != NULL) { 666 usbd_abort_pipe(sc->sc_out_pipe); 667 usbd_close_pipe(sc->sc_out_pipe); 668 sc->sc_out_pipe = NULL; 669 } 670 if (sc->sc_out_xfer != NULL) { 671 usbd_free_xfer(sc->sc_out_xfer); 672 sc->sc_out_xfer = NULL; 673 } 674 675 if (sc->sc_in_pipe != NULL) { 676 usbd_abort_pipe(sc->sc_in_pipe); 677 usbd_close_pipe(sc->sc_in_pipe); 678 sc->sc_in_pipe = NULL; 679 } 680 if (sc->sc_in_xfer != NULL) { 681 usbd_free_xfer(sc->sc_in_xfer); 682 sc->sc_in_xfer = NULL; 683 } 684 685 sc->sc_state = 0; 686 687 DPRINTF(("ulptclose: closed\n")); 688 return (0); 689 } 690 691 int 692 ulpt_do_write(struct ulpt_softc *sc, struct uio *uio, int flags) 693 { 694 u_int32_t n; 695 int error = 0; 696 void *bufp; 697 usbd_xfer_handle xfer; 698 usbd_status err; 699 700 DPRINTF(("ulptwrite\n")); 701 xfer = sc->sc_out_xfer; 702 bufp = sc->sc_out_buf; 703 while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) { 704 ulpt_statusmsg(ulpt_status(sc), sc); 705 error = uiomove(bufp, n, uio); 706 if (error) 707 break; 708 DPRINTFN(1, ("ulptwrite: transfer %d bytes\n", n)); 709 err = usbd_bulk_transfer(xfer, sc->sc_out_pipe, USBD_NO_COPY, 710 USBD_NO_TIMEOUT, bufp, &n, "ulptwr"); 711 if (err) { 712 DPRINTF(("ulptwrite: error=%d\n", err)); 713 error = EIO; 714 break; 715 } 716 } 717 718 return (error); 719 } 720 721 int 722 ulptwrite(dev_t dev, struct uio *uio, int flags) 723 { 724 struct ulpt_softc *sc; 725 int error; 726 727 USB_GET_SC(ulpt, ULPTUNIT(dev), sc); 728 729 if (sc->sc_dying) 730 return (EIO); 731 732 sc->sc_refcnt++; 733 error = ulpt_do_write(sc, uio, flags); 734 if (--sc->sc_refcnt < 0) 735 usb_detach_wakeup(USBDEV(sc->sc_dev)); 736 return (error); 737 } 738 739 int 740 ulpt_do_read(struct ulpt_softc *sc, struct uio *uio, int flags) 741 { 742 u_int32_t n, on; 743 int error = 0; 744 void *bufp; 745 usbd_xfer_handle xfer; 746 usbd_status err; 747 748 DPRINTF(("ulptread\n")); 749 750 if (sc->sc_in_pipe == NULL) 751 return 0; 752 753 xfer = sc->sc_in_xfer; 754 bufp = sc->sc_in_buf; 755 while ((n = min(ULPT_BSIZE, uio->uio_resid)) != 0) { 756 DPRINTFN(1, ("ulptread: transfer %d bytes\n", n)); 757 on = n; 758 err = usbd_bulk_transfer(xfer, sc->sc_in_pipe, 759 USBD_NO_COPY | USBD_SHORT_XFER_OK, 760 USBD_NO_TIMEOUT, bufp, &n, "ulptrd"); 761 if (err) { 762 DPRINTF(("ulptread: error=%d\n", err)); 763 error = EIO; 764 break; 765 } 766 error = uiomove(bufp, n, uio); 767 if (error) 768 break; 769 if (on != n) 770 break; 771 } 772 773 return (error); 774 } 775 776 int 777 ulptread(dev_t dev, struct uio *uio, int flags) 778 { 779 struct ulpt_softc *sc; 780 int error; 781 782 USB_GET_SC(ulpt, ULPTUNIT(dev), sc); 783 784 if (sc->sc_dying) 785 return (EIO); 786 787 sc->sc_refcnt++; 788 error = ulpt_do_read(sc, uio, flags); 789 if (--sc->sc_refcnt < 0) 790 usb_detach_wakeup(USBDEV(sc->sc_dev)); 791 return (error); 792 } 793 794 void 795 ulpt_read_cb(usbd_xfer_handle xfer, usbd_private_handle priv, 796 usbd_status status) 797 { 798 usbd_status err; 799 u_int32_t n; 800 usbd_private_handle xsc; 801 struct ulpt_softc *sc; 802 803 usbd_get_xfer_status(xfer, &xsc, NULL, &n, &err); 804 sc = xsc; 805 806 DPRINTFN(1,("ulpt_read_cb: start sc=%p, err=%d n=%d\n", sc, err, n)); 807 808 #ifdef ULPT_DEBUG 809 if (!err && n > 0) 810 DPRINTF(("ulpt_tick: discarding %d bytes\n", n)); 811 #endif 812 if (!err || err == USBD_TIMEOUT) 813 usb_callout(sc->sc_read_callout, hz / ULPT_READS_PER_SEC, 814 ulpt_tick, sc); 815 } 816 817 void 818 ulpt_tick(void *xsc) 819 { 820 struct ulpt_softc *sc = xsc; 821 usbd_status err; 822 823 if (sc == NULL || sc->sc_dying) 824 return; 825 826 DPRINTFN(1,("ulpt_tick: start sc=%p\n", sc)); 827 828 usbd_setup_xfer(sc->sc_in_xfer, sc->sc_in_pipe, sc, sc->sc_in_buf, 829 ULPT_BSIZE, USBD_NO_COPY | USBD_SHORT_XFER_OK, 830 ULPT_READ_TIMO, ulpt_read_cb); 831 err = usbd_transfer(sc->sc_in_xfer); 832 DPRINTFN(1,("ulpt_tick: err=%d\n", err)); 833 } 834 835 int 836 ulptioctl(dev_t dev, u_long cmd, caddr_t data, 837 int flag, struct lwp *l) 838 { 839 return ENODEV; 840 } 841 842 #if 0 843 /* XXX This does not belong here. */ 844 /* 845 * Print select parts of a IEEE 1284 device ID. 846 */ 847 void 848 ieee1284_print_id(char *str) 849 { 850 char *p, *q; 851 852 for (p = str-1; p; p = strchr(p, ';')) { 853 p++; /* skip ';' */ 854 if (strncmp(p, "MFG:", 4) == 0 || 855 strncmp(p, "MANUFACTURER:", 14) == 0 || 856 strncmp(p, "MDL:", 4) == 0 || 857 strncmp(p, "MODEL:", 6) == 0) { 858 q = strchr(p, ';'); 859 if (q) 860 printf("%.*s", (int)(q - p + 1), p); 861 } 862 } 863 } 864 #endif 865 866 #if defined(__FreeBSD__) 867 DRIVER_MODULE(ulpt, uhub, ulpt_driver, ulpt_devclass, usbd_driver_load, 0); 868 #endif 869 870 871 872 873 874 #if 0 875 usbd_setup_xfer(sc->sc_in_xfer1, sc->sc_in_pipe, sc, 876 sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK, 877 USBD_NO_TIMEOUT, ulpt_input); 878 usbd_setup_xfer(sc->sc_in_xfer2, sc->sc_in_pipe, sc, 879 sc->sc_junk, sizeof sc->sc_junk, USBD_SHORT_XFER_OK, 880 USBD_NO_TIMEOUT, ulpt_input); 881 usbd_transfer(sc->sc_in_xfer1); /* ignore failed start */ 882 #endif 883