ugen.c revision 1.42
1 /* $NetBSD: ugen.c,v 1.42 2000/09/08 01:27:12 augustss Exp $ */ 2 /* $FreeBSD: src/sys/dev/usb/ugen.c,v 1.26 1999/11/17 22:33:41 n_hibma Exp $ */ 3 4 /* 5 * Copyright (c) 1998 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 (at) 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 #include <sys/param.h> 43 #include <sys/systm.h> 44 #include <sys/kernel.h> 45 #include <sys/malloc.h> 46 #if defined(__NetBSD__) || defined(__OpenBSD__) 47 #include <sys/device.h> 48 #include <sys/ioctl.h> 49 #elif defined(__FreeBSD__) 50 #include <sys/module.h> 51 #include <sys/bus.h> 52 #include <sys/ioccom.h> 53 #include <sys/conf.h> 54 #include <sys/fcntl.h> 55 #include <sys/filio.h> 56 #endif 57 #include <sys/conf.h> 58 #include <sys/tty.h> 59 #include <sys/file.h> 60 #include <sys/select.h> 61 #include <sys/proc.h> 62 #include <sys/vnode.h> 63 #include <sys/poll.h> 64 65 #include <dev/usb/usb.h> 66 #include <dev/usb/usbdi.h> 67 #include <dev/usb/usbdi_util.h> 68 69 #ifdef UGEN_DEBUG 70 #define DPRINTF(x) if (ugendebug) logprintf x 71 #define DPRINTFN(n,x) if (ugendebug>(n)) logprintf x 72 int ugendebug = 0; 73 #else 74 #define DPRINTF(x) 75 #define DPRINTFN(n,x) 76 #endif 77 78 #define UGEN_CHUNK 128 /* chunk size for read */ 79 #define UGEN_IBSIZE 1020 /* buffer size */ 80 #define UGEN_BBSIZE 1024 81 82 #define UGEN_NISOFRAMES 500 /* 0.5 seconds worth */ 83 #define UGEN_NISOREQS 6 /* number of outstanding xfer requests */ 84 #define UGEN_NISORFRMS 4 /* number of frames (miliseconds) per req */ 85 86 struct ugen_endpoint { 87 struct ugen_softc *sc; 88 usb_endpoint_descriptor_t *edesc; 89 usbd_interface_handle iface; 90 int state; 91 #define UGEN_ASLP 0x02 /* waiting for data */ 92 #define UGEN_SHORT_OK 0x04 /* short xfers are OK */ 93 usbd_pipe_handle pipeh; 94 struct clist q; 95 struct selinfo rsel; 96 u_char *ibuf; /* start of buffer (circular for isoc) */ 97 u_char *fill; /* location for input (isoc) */ 98 u_char *limit; /* end of circular buffer (isoc) */ 99 u_char *cur; /* current read location (isoc) */ 100 u_int32_t timeout; 101 struct isoreq { 102 struct ugen_endpoint *sce; 103 usbd_xfer_handle xfer; 104 void *dmabuf; 105 u_int16_t sizes[UGEN_NISORFRMS]; 106 } isoreqs[UGEN_NISOREQS]; 107 }; 108 109 struct ugen_softc { 110 USBBASEDEVICE sc_dev; /* base device */ 111 usbd_device_handle sc_udev; 112 113 char sc_is_open[USB_MAX_ENDPOINTS]; 114 struct ugen_endpoint sc_endpoints[USB_MAX_ENDPOINTS][2]; 115 #define OUT 0 116 #define IN 1 117 118 int sc_refcnt; 119 u_char sc_dying; 120 }; 121 122 #if defined(__NetBSD__) || defined(__OpenBSD__) 123 cdev_decl(ugen); 124 #elif defined(__FreeBSD__) 125 d_open_t ugenopen; 126 d_close_t ugenclose; 127 d_read_t ugenread; 128 d_write_t ugenwrite; 129 d_ioctl_t ugenioctl; 130 d_poll_t ugenpoll; 131 132 #define UGEN_CDEV_MAJOR 114 133 134 Static struct cdevsw ugen_cdevsw = { 135 /* open */ ugenopen, 136 /* close */ ugenclose, 137 /* read */ ugenread, 138 /* write */ ugenwrite, 139 /* ioctl */ ugenioctl, 140 /* poll */ ugenpoll, 141 /* mmap */ nommap, 142 /* strategy */ nostrategy, 143 /* name */ "ugen", 144 /* maj */ UGEN_CDEV_MAJOR, 145 /* dump */ nodump, 146 /* psize */ nopsize, 147 /* flags */ 0, 148 /* bmaj */ -1 149 }; 150 #endif 151 152 Static void ugenintr(usbd_xfer_handle xfer, usbd_private_handle addr, 153 usbd_status status); 154 Static void ugen_isoc_rintr(usbd_xfer_handle xfer, usbd_private_handle addr, 155 usbd_status status); 156 Static int ugen_do_read(struct ugen_softc *, int, struct uio *, int); 157 Static int ugen_do_write(struct ugen_softc *, int, struct uio *, int); 158 Static int ugen_do_ioctl(struct ugen_softc *, int, u_long, 159 caddr_t, int, struct proc *); 160 Static int ugen_set_config(struct ugen_softc *sc, int configno); 161 Static usb_config_descriptor_t *ugen_get_cdesc(struct ugen_softc *sc, 162 int index, int *lenp); 163 Static usbd_status ugen_set_interface(struct ugen_softc *, int, int); 164 Static int ugen_get_alt_index(struct ugen_softc *sc, int ifaceidx); 165 166 #define UGENUNIT(n) ((minor(n) >> 4) & 0xf) 167 #define UGENENDPOINT(n) (minor(n) & 0xf) 168 #define UGENDEV(u, e) (makedev(0, ((u) << 4) | (e))) 169 170 USB_DECLARE_DRIVER(ugen); 171 172 USB_MATCH(ugen) 173 { 174 USB_MATCH_START(ugen, uaa); 175 176 if (uaa->usegeneric) 177 return (UMATCH_GENERIC); 178 else 179 return (UMATCH_NONE); 180 } 181 182 USB_ATTACH(ugen) 183 { 184 USB_ATTACH_START(ugen, sc, uaa); 185 usbd_device_handle udev; 186 char devinfo[1024]; 187 usbd_status err; 188 int conf; 189 190 usbd_devinfo(uaa->device, 0, devinfo); 191 USB_ATTACH_SETUP; 192 printf("%s: %s\n", USBDEVNAME(sc->sc_dev), devinfo); 193 194 sc->sc_udev = udev = uaa->device; 195 196 /* First set configuration index 0, the default one for ugen. */ 197 err = usbd_set_config_index(udev, 0, 0); 198 if (err) { 199 printf("%s: setting configuration index 0 failed\n", 200 USBDEVNAME(sc->sc_dev)); 201 sc->sc_dying = 1; 202 USB_ATTACH_ERROR_RETURN; 203 } 204 conf = usbd_get_config_descriptor(udev)->bConfigurationValue; 205 206 /* Set up all the local state for this configuration. */ 207 err = ugen_set_config(sc, conf); 208 if (err) { 209 printf("%s: setting configuration %d failed\n", 210 USBDEVNAME(sc->sc_dev), conf); 211 sc->sc_dying = 1; 212 USB_ATTACH_ERROR_RETURN; 213 } 214 215 #ifdef __FreeBSD__ 216 { 217 static int global_init_done = 0; 218 if (!global_init_done) { 219 cdevsw_add(&ugen_cdevsw); 220 global_init_done = 1; 221 } 222 } 223 #endif 224 225 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 226 USBDEV(sc->sc_dev)); 227 228 USB_ATTACH_SUCCESS_RETURN; 229 } 230 231 Static int 232 ugen_set_config(struct ugen_softc *sc, int configno) 233 { 234 usbd_device_handle dev = sc->sc_udev; 235 usbd_interface_handle iface; 236 usb_endpoint_descriptor_t *ed; 237 struct ugen_endpoint *sce; 238 u_int8_t niface, nendpt; 239 int ifaceno, endptno, endpt; 240 usbd_status err; 241 int dir; 242 243 DPRINTFN(1,("ugen_set_config: %s to configno %d, sc=%p\n", 244 USBDEVNAME(sc->sc_dev), configno, sc)); 245 /* Avoid setting the current value. */ 246 if (usbd_get_config_descriptor(dev)->bConfigurationValue != configno) { 247 err = usbd_set_config_no(dev, configno, 0); 248 if (err) 249 return (err); 250 } 251 252 err = usbd_interface_count(dev, &niface); 253 if (err) 254 return (err); 255 memset(sc->sc_endpoints, 0, sizeof sc->sc_endpoints); 256 for (ifaceno = 0; ifaceno < niface; ifaceno++) { 257 DPRINTFN(1,("ugen_set_config: ifaceno %d\n", ifaceno)); 258 err = usbd_device2interface_handle(dev, ifaceno, &iface); 259 if (err) 260 return (err); 261 err = usbd_endpoint_count(iface, &nendpt); 262 if (err) 263 return (err); 264 for (endptno = 0; endptno < nendpt; endptno++) { 265 ed = usbd_interface2endpoint_descriptor(iface,endptno); 266 endpt = ed->bEndpointAddress; 267 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 268 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 269 DPRINTFN(1,("ugen_set_config: endptno %d, endpt=0x%02x" 270 "(%d,%d), sce=%p\n", 271 endptno, endpt, UE_GET_ADDR(endpt), 272 UE_GET_DIR(endpt), sce)); 273 sce->sc = sc; 274 sce->edesc = ed; 275 sce->iface = iface; 276 } 277 } 278 return (USBD_NORMAL_COMPLETION); 279 } 280 281 int 282 ugenopen(dev_t dev, int flag, int mode, struct proc *p) 283 { 284 struct ugen_softc *sc; 285 int unit = UGENUNIT(dev); 286 int endpt = UGENENDPOINT(dev); 287 usb_endpoint_descriptor_t *edesc; 288 struct ugen_endpoint *sce; 289 int dir, isize; 290 usbd_status err; 291 usbd_xfer_handle xfer; 292 void *buf; 293 int i, j; 294 295 USB_GET_SC_OPEN(ugen, unit, sc); 296 297 DPRINTFN(5, ("ugenopen: flag=%d, mode=%d, unit=%d endpt=%d\n", 298 flag, mode, unit, endpt)); 299 300 if (sc == NULL || sc->sc_dying) 301 return (ENXIO); 302 303 if (sc->sc_is_open[endpt]) 304 return (EBUSY); 305 306 if (endpt == USB_CONTROL_ENDPOINT) { 307 sc->sc_is_open[USB_CONTROL_ENDPOINT] = 1; 308 return (0); 309 } 310 311 /* Make sure there are pipes for all directions. */ 312 for (dir = OUT; dir <= IN; dir++) { 313 if (flag & (dir == OUT ? FWRITE : FREAD)) { 314 sce = &sc->sc_endpoints[endpt][dir]; 315 if (sce == 0 || sce->edesc == 0) 316 return (ENXIO); 317 } 318 } 319 320 /* Actually open the pipes. */ 321 /* XXX Should back out properly if it fails. */ 322 for (dir = OUT; dir <= IN; dir++) { 323 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 324 continue; 325 sce = &sc->sc_endpoints[endpt][dir]; 326 sce->state = 0; 327 sce->timeout = USBD_NO_TIMEOUT; 328 DPRINTFN(5, ("ugenopen: sc=%p, endpt=%d, dir=%d, sce=%p\n", 329 sc, endpt, dir, sce)); 330 edesc = sce->edesc; 331 switch (edesc->bmAttributes & UE_XFERTYPE) { 332 case UE_INTERRUPT: 333 isize = UGETW(edesc->wMaxPacketSize); 334 if (isize == 0) /* shouldn't happen */ 335 return (EINVAL); 336 sce->ibuf = malloc(isize, M_USBDEV, M_WAITOK); 337 DPRINTFN(5, ("ugenopen: intr endpt=%d,isize=%d\n", 338 endpt, isize)); 339 if (clalloc(&sce->q, UGEN_IBSIZE, 0) == -1) 340 return (ENOMEM); 341 err = usbd_open_pipe_intr(sce->iface, 342 edesc->bEndpointAddress, 343 USBD_SHORT_XFER_OK, &sce->pipeh, sce, 344 sce->ibuf, isize, ugenintr, 345 USBD_DEFAULT_INTERVAL); 346 if (err) { 347 free(sce->ibuf, M_USBDEV); 348 clfree(&sce->q); 349 return (EIO); 350 } 351 DPRINTFN(5, ("ugenopen: interrupt open done\n")); 352 break; 353 case UE_BULK: 354 err = usbd_open_pipe(sce->iface, 355 edesc->bEndpointAddress, 0, &sce->pipeh); 356 if (err) 357 return (EIO); 358 break; 359 case UE_ISOCHRONOUS: 360 if (dir == OUT) 361 return (EINVAL); 362 isize = UGETW(edesc->wMaxPacketSize); 363 if (isize == 0) /* shouldn't happen */ 364 return (EINVAL); 365 sce->ibuf = malloc(isize * UGEN_NISOFRAMES, 366 M_USBDEV, M_WAITOK); 367 sce->cur = sce->fill = sce->ibuf; 368 sce->limit = sce->ibuf + isize * UGEN_NISOFRAMES; 369 DPRINTFN(5, ("ugenopen: isoc endpt=%d, isize=%d\n", 370 endpt, isize)); 371 err = usbd_open_pipe(sce->iface, 372 edesc->bEndpointAddress, 0, &sce->pipeh); 373 if (err) { 374 free(sce->ibuf, M_USBDEV); 375 return (EIO); 376 } 377 for(i = 0; i < UGEN_NISOREQS; ++i) { 378 sce->isoreqs[i].sce = sce; 379 xfer = usbd_alloc_xfer(sc->sc_udev); 380 if (xfer == 0) 381 goto bad; 382 sce->isoreqs[i].xfer = xfer; 383 buf = usbd_alloc_buffer 384 (xfer, isize * UGEN_NISORFRMS); 385 if (buf == 0) { 386 i++; 387 goto bad; 388 } 389 sce->isoreqs[i].dmabuf = buf; 390 for(j = 0; j < UGEN_NISORFRMS; ++j) 391 sce->isoreqs[i].sizes[j] = isize; 392 usbd_setup_isoc_xfer 393 (xfer, sce->pipeh, &sce->isoreqs[i], 394 sce->isoreqs[i].sizes, 395 UGEN_NISORFRMS, USBD_NO_COPY, 396 ugen_isoc_rintr); 397 (void)usbd_transfer(xfer); 398 } 399 DPRINTFN(5, ("ugenopen: isoc open done\n")); 400 break; 401 bad: 402 while (--i >= 0) /* implicit buffer free */ 403 usbd_free_xfer(sce->isoreqs[i].xfer); 404 return (ENOMEM); 405 case UE_CONTROL: 406 return (EINVAL); 407 } 408 } 409 sc->sc_is_open[endpt] = 1; 410 return (0); 411 } 412 413 int 414 ugenclose(dev_t dev, int flag, int mode, struct proc *p) 415 { 416 int endpt = UGENENDPOINT(dev); 417 struct ugen_softc *sc; 418 struct ugen_endpoint *sce; 419 int dir; 420 int i; 421 422 USB_GET_SC(ugen, UGENUNIT(dev), sc); 423 424 DPRINTFN(5, ("ugenclose: flag=%d, mode=%d, unit=%d, endpt=%d\n", 425 flag, mode, UGENUNIT(dev), endpt)); 426 427 #ifdef DIAGNOSTIC 428 if (!sc->sc_is_open[endpt]) { 429 printf("ugenclose: not open\n"); 430 return (EINVAL); 431 } 432 #endif 433 434 if (endpt == USB_CONTROL_ENDPOINT) { 435 DPRINTFN(5, ("ugenclose: close control\n")); 436 sc->sc_is_open[endpt] = 0; 437 return (0); 438 } 439 440 for (dir = OUT; dir <= IN; dir++) { 441 if (!(flag & (dir == OUT ? FWRITE : FREAD))) 442 continue; 443 sce = &sc->sc_endpoints[endpt][dir]; 444 if (sce == NULL || sce->pipeh == NULL) 445 continue; 446 DPRINTFN(5, ("ugenclose: endpt=%d dir=%d sce=%p\n", 447 endpt, dir, sce)); 448 449 usbd_abort_pipe(sce->pipeh); 450 usbd_close_pipe(sce->pipeh); 451 sce->pipeh = NULL; 452 453 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 454 case UE_INTERRUPT: 455 ndflush(&sce->q, sce->q.c_cc); 456 clfree(&sce->q); 457 break; 458 case UE_ISOCHRONOUS: 459 for (i = 0; i < UGEN_NISOREQS; ++i) 460 usbd_free_xfer(sce->isoreqs[i].xfer); 461 462 default: 463 break; 464 } 465 466 if (sce->ibuf != NULL) { 467 free(sce->ibuf, M_USBDEV); 468 sce->ibuf = NULL; 469 clfree(&sce->q); 470 471 } 472 } 473 sc->sc_is_open[endpt] = 0; 474 475 return (0); 476 } 477 478 Static int 479 ugen_do_read(struct ugen_softc *sc, int endpt, struct uio *uio, int flag) 480 { 481 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][IN]; 482 u_int32_t n, tn; 483 char buf[UGEN_BBSIZE]; 484 usbd_xfer_handle xfer; 485 usbd_status err; 486 int s; 487 int error = 0; 488 u_char buffer[UGEN_CHUNK]; 489 490 #ifdef __NetBSD__ 491 DPRINTFN(5, ("ugenread: %d:%d\n", sc->sc_dev.dv_unit, endpt)); 492 #endif 493 494 if (sc->sc_dying) 495 return (EIO); 496 497 if (endpt == USB_CONTROL_ENDPOINT) 498 return (ENODEV); 499 500 #ifdef DIAGNOSTIC 501 if (sce->edesc == NULL) { 502 printf("ugenread: no edesc\n"); 503 return (EIO); 504 } 505 if (sce->pipeh == NULL) { 506 printf("ugenread: no pipe\n"); 507 return (EIO); 508 } 509 #endif 510 511 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 512 case UE_INTERRUPT: 513 /* Block until activity occured. */ 514 s = splusb(); 515 while (sce->q.c_cc == 0) { 516 if (flag & IO_NDELAY) { 517 splx(s); 518 return (EWOULDBLOCK); 519 } 520 sce->state |= UGEN_ASLP; 521 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 522 error = tsleep(sce, PZERO | PCATCH, "ugenri", 0); 523 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 524 if (sc->sc_dying) 525 error = EIO; 526 if (error) { 527 sce->state &= ~UGEN_ASLP; 528 break; 529 } 530 } 531 splx(s); 532 533 /* Transfer as many chunks as possible. */ 534 while (sce->q.c_cc > 0 && uio->uio_resid > 0 && !error) { 535 n = min(sce->q.c_cc, uio->uio_resid); 536 if (n > sizeof(buffer)) 537 n = sizeof(buffer); 538 539 /* Remove a small chunk from the input queue. */ 540 q_to_b(&sce->q, buffer, n); 541 DPRINTFN(5, ("ugenread: got %d chars\n", n)); 542 543 /* Copy the data to the user process. */ 544 error = uiomove(buffer, n, uio); 545 if (error) 546 break; 547 } 548 break; 549 case UE_BULK: 550 xfer = usbd_alloc_xfer(sc->sc_udev); 551 if (xfer == 0) 552 return (ENOMEM); 553 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 554 DPRINTFN(1, ("ugenread: start transfer %d bytes\n",n)); 555 tn = n; 556 err = usbd_bulk_transfer( 557 xfer, sce->pipeh, 558 sce->state & UGEN_SHORT_OK ? 559 USBD_SHORT_XFER_OK : 0, 560 sce->timeout, buf, &tn, "ugenrb"); 561 if (err) { 562 if (err == USBD_INTERRUPTED) 563 error = EINTR; 564 else if (err == USBD_TIMEOUT) 565 error = ETIMEDOUT; 566 else 567 error = EIO; 568 break; 569 } 570 DPRINTFN(1, ("ugenread: got %d bytes\n", tn)); 571 error = uiomove(buf, tn, uio); 572 if (error || tn < n) 573 break; 574 } 575 usbd_free_xfer(xfer); 576 break; 577 case UE_ISOCHRONOUS: 578 s = splusb(); 579 while (sce->cur == sce->fill) { 580 if (flag & IO_NDELAY) { 581 splx(s); 582 return (EWOULDBLOCK); 583 } 584 sce->state |= UGEN_ASLP; 585 DPRINTFN(5, ("ugenread: sleep on %p\n", sc)); 586 error = tsleep(sce, PZERO | PCATCH, "ugenri", 0); 587 DPRINTFN(5, ("ugenread: woke, error=%d\n", error)); 588 if (sc->sc_dying) 589 error = EIO; 590 if (error) { 591 sce->state &= ~UGEN_ASLP; 592 break; 593 } 594 } 595 596 while (sce->cur != sce->fill && uio->uio_resid > 0 && !error) { 597 if(sce->fill > sce->cur) 598 n = min(sce->fill - sce->cur, uio->uio_resid); 599 else 600 n = min(sce->limit - sce->cur, uio->uio_resid); 601 602 DPRINTFN(5, ("ugenread: isoc got %d chars\n", n)); 603 604 /* Copy the data to the user process. */ 605 error = uiomove(sce->cur, n, uio); 606 if (error) 607 break; 608 sce->cur += n; 609 if(sce->cur >= sce->limit) 610 sce->cur = sce->ibuf; 611 } 612 splx(s); 613 break; 614 615 616 default: 617 return (ENXIO); 618 } 619 return (error); 620 } 621 622 int 623 ugenread(dev_t dev, struct uio *uio, int flag) 624 { 625 int endpt = UGENENDPOINT(dev); 626 struct ugen_softc *sc; 627 int error; 628 629 USB_GET_SC(ugen, UGENUNIT(dev), sc); 630 631 sc->sc_refcnt++; 632 error = ugen_do_read(sc, endpt, uio, flag); 633 if (--sc->sc_refcnt < 0) 634 usb_detach_wakeup(USBDEV(sc->sc_dev)); 635 return (error); 636 } 637 638 Static int 639 ugen_do_write(struct ugen_softc *sc, int endpt, struct uio *uio, int flag) 640 { 641 struct ugen_endpoint *sce = &sc->sc_endpoints[endpt][OUT]; 642 u_int32_t n; 643 int error = 0; 644 char buf[UGEN_BBSIZE]; 645 usbd_xfer_handle xfer; 646 usbd_status err; 647 648 DPRINTFN(5, ("%s: ugenwrite: %d\n", USBDEVNAME(sc->sc_dev), endpt)); 649 650 if (sc->sc_dying) 651 return (EIO); 652 653 if (endpt == USB_CONTROL_ENDPOINT) 654 return (ENODEV); 655 656 #ifdef DIAGNOSTIC 657 if (sce->edesc == NULL) { 658 printf("ugenwrite: no edesc\n"); 659 return (EIO); 660 } 661 if (sce->pipeh == NULL) { 662 printf("ugenwrite: no pipe\n"); 663 return (EIO); 664 } 665 #endif 666 667 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 668 case UE_BULK: 669 xfer = usbd_alloc_xfer(sc->sc_udev); 670 if (xfer == 0) 671 return (EIO); 672 while ((n = min(UGEN_BBSIZE, uio->uio_resid)) != 0) { 673 error = uiomove(buf, n, uio); 674 if (error) 675 break; 676 DPRINTFN(1, ("ugenwrite: transfer %d bytes\n", n)); 677 err = usbd_bulk_transfer(xfer, sce->pipeh, 0, 678 sce->timeout, buf, &n,"ugenwb"); 679 if (err) { 680 if (err == USBD_INTERRUPTED) 681 error = EINTR; 682 else if (err == USBD_TIMEOUT) 683 error = ETIMEDOUT; 684 else 685 error = EIO; 686 break; 687 } 688 } 689 usbd_free_xfer(xfer); 690 break; 691 default: 692 return (ENXIO); 693 } 694 return (error); 695 } 696 697 int 698 ugenwrite(dev_t dev, struct uio *uio, int flag) 699 { 700 int endpt = UGENENDPOINT(dev); 701 struct ugen_softc *sc; 702 int error; 703 704 USB_GET_SC(ugen, UGENUNIT(dev), sc); 705 706 sc->sc_refcnt++; 707 error = ugen_do_write(sc, endpt, uio, flag); 708 if (--sc->sc_refcnt < 0) 709 usb_detach_wakeup(USBDEV(sc->sc_dev)); 710 return (error); 711 } 712 713 #if defined(__NetBSD__) || defined(__OpenBSD__) 714 int 715 ugen_activate(device_ptr_t self, enum devact act) 716 { 717 struct ugen_softc *sc = (struct ugen_softc *)self; 718 719 switch (act) { 720 case DVACT_ACTIVATE: 721 return (EOPNOTSUPP); 722 break; 723 724 case DVACT_DEACTIVATE: 725 sc->sc_dying = 1; 726 break; 727 } 728 return (0); 729 } 730 #endif 731 732 USB_DETACH(ugen) 733 { 734 USB_DETACH_START(ugen, sc); 735 struct ugen_endpoint *sce; 736 int i, dir; 737 int s; 738 #if defined(__NetBSD__) || defined(__OpenBSD__) 739 int maj, mn; 740 741 DPRINTF(("ugen_detach: sc=%p flags=%d\n", sc, flags)); 742 #elif defined(__FreeBSD__) 743 DPRINTF(("ugen_detach: sc=%p\n", sc)); 744 #endif 745 746 sc->sc_dying = 1; 747 /* Abort all pipes. Causes processes waiting for transfer to wake. */ 748 for (i = 0; i < USB_MAX_ENDPOINTS; i++) { 749 for (dir = OUT; dir <= IN; dir++) { 750 sce = &sc->sc_endpoints[i][dir]; 751 if (sce && sce->pipeh) 752 usbd_abort_pipe(sce->pipeh); 753 } 754 } 755 756 s = splusb(); 757 if (--sc->sc_refcnt >= 0) { 758 /* Wake everyone */ 759 for (i = 0; i < USB_MAX_ENDPOINTS; i++) 760 wakeup(&sc->sc_endpoints[i][IN]); 761 /* Wait for processes to go away. */ 762 usb_detach_wait(USBDEV(sc->sc_dev)); 763 } 764 splx(s); 765 766 #if defined(__NetBSD__) || defined(__OpenBSD__) 767 /* locate the major number */ 768 for (maj = 0; maj < nchrdev; maj++) 769 if (cdevsw[maj].d_open == ugenopen) 770 break; 771 772 /* Nuke the vnodes for any open instances (calls close). */ 773 mn = self->dv_unit * USB_MAX_ENDPOINTS; 774 vdevgone(maj, mn, mn + USB_MAX_ENDPOINTS - 1, VCHR); 775 #elif defined(__FreeBSD__) 776 /* XXX not implemented yet */ 777 #endif 778 779 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 780 USBDEV(sc->sc_dev)); 781 782 return (0); 783 } 784 785 Static void 786 ugenintr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) 787 { 788 struct ugen_endpoint *sce = addr; 789 /*struct ugen_softc *sc = sce->sc;*/ 790 u_int32_t count; 791 u_char *ibuf; 792 793 if (status == USBD_CANCELLED) 794 return; 795 796 if (status != USBD_NORMAL_COMPLETION) { 797 DPRINTF(("ugenintr: status=%d\n", status)); 798 usbd_clear_endpoint_stall_async(sce->pipeh); 799 return; 800 } 801 802 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 803 ibuf = sce->ibuf; 804 805 DPRINTFN(5, ("ugenintr: xfer=%p status=%d count=%d\n", 806 xfer, status, count)); 807 DPRINTFN(5, (" data = %02x %02x %02x\n", 808 ibuf[0], ibuf[1], ibuf[2])); 809 810 (void)b_to_q(ibuf, count, &sce->q); 811 812 if (sce->state & UGEN_ASLP) { 813 sce->state &= ~UGEN_ASLP; 814 DPRINTFN(5, ("ugen_intr: waking %p\n", sce)); 815 wakeup(sce); 816 } 817 selwakeup(&sce->rsel); 818 } 819 820 Static void 821 ugen_isoc_rintr(usbd_xfer_handle xfer, usbd_private_handle addr, 822 usbd_status status) 823 { 824 struct isoreq *req = addr; 825 struct ugen_endpoint *sce = req->sce; 826 u_int32_t count, n; 827 828 /* Return if we are aborting. */ 829 if (status == USBD_CANCELLED) 830 return; 831 832 usbd_get_xfer_status(xfer, NULL, NULL, &count, NULL); 833 DPRINTFN(5,("ugen_isoc_rintr: xfer %d, count=%d\n", req - sce->isoreqs, 834 count)); 835 836 /* throw away oldest input if the buffer is full */ 837 if(sce->fill < sce->cur && sce->cur <= sce->fill + count) { 838 sce->cur += count; 839 if(sce->cur >= sce->limit) 840 sce->cur = sce->ibuf + (sce->limit - sce->cur); 841 DPRINTFN(5, ("ugen_isoc_rintr: throwing away %d bytes\n", 842 count)); 843 } 844 845 /* copy data to buffer */ 846 while (count > 0) { 847 n = min(count, sce->limit - sce->fill); 848 memcpy(sce->fill, req->dmabuf, n); 849 850 count -= n; 851 sce->fill += n; 852 if(sce->fill == sce->limit) 853 sce->fill = sce->ibuf; 854 } 855 856 usbd_setup_isoc_xfer(xfer, sce->pipeh, req, req->sizes, UGEN_NISORFRMS, 857 USBD_NO_COPY, ugen_isoc_rintr); 858 (void)usbd_transfer(xfer); 859 860 if (sce->state & UGEN_ASLP) { 861 sce->state &= ~UGEN_ASLP; 862 DPRINTFN(5, ("ugen_isoc_rintr: waking %p\n", sce)); 863 wakeup(sce); 864 } 865 selwakeup(&sce->rsel); 866 } 867 868 Static usbd_status 869 ugen_set_interface(struct ugen_softc *sc, int ifaceidx, int altno) 870 { 871 usbd_interface_handle iface; 872 usb_endpoint_descriptor_t *ed; 873 usbd_status err; 874 struct ugen_endpoint *sce; 875 u_int8_t niface, nendpt, endptno, endpt; 876 int dir; 877 878 DPRINTFN(15, ("ugen_set_interface %d %d\n", ifaceidx, altno)); 879 880 err = usbd_interface_count(sc->sc_udev, &niface); 881 if (err) 882 return (err); 883 if (ifaceidx < 0 || ifaceidx >= niface) 884 return (USBD_INVAL); 885 886 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 887 if (err) 888 return (err); 889 err = usbd_endpoint_count(iface, &nendpt); 890 if (err) 891 return (err); 892 /* XXX should only do this after setting new altno has succeeded */ 893 for (endptno = 0; endptno < nendpt; endptno++) { 894 ed = usbd_interface2endpoint_descriptor(iface,endptno); 895 endpt = ed->bEndpointAddress; 896 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 897 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 898 sce->sc = 0; 899 sce->edesc = 0; 900 sce->iface = 0; 901 } 902 903 /* change setting */ 904 err = usbd_set_interface(iface, altno); 905 if (err) 906 return (err); 907 908 err = usbd_endpoint_count(iface, &nendpt); 909 if (err) 910 return (err); 911 for (endptno = 0; endptno < nendpt; endptno++) { 912 ed = usbd_interface2endpoint_descriptor(iface,endptno); 913 endpt = ed->bEndpointAddress; 914 dir = UE_GET_DIR(endpt) == UE_DIR_IN ? IN : OUT; 915 sce = &sc->sc_endpoints[UE_GET_ADDR(endpt)][dir]; 916 sce->sc = sc; 917 sce->edesc = ed; 918 sce->iface = iface; 919 } 920 return (0); 921 } 922 923 /* Retrieve a complete descriptor for a certain device and index. */ 924 Static usb_config_descriptor_t * 925 ugen_get_cdesc(struct ugen_softc *sc, int index, int *lenp) 926 { 927 usb_config_descriptor_t *cdesc, *tdesc, cdescr; 928 int len; 929 usbd_status err; 930 931 if (index == USB_CURRENT_CONFIG_INDEX) { 932 tdesc = usbd_get_config_descriptor(sc->sc_udev); 933 len = UGETW(tdesc->wTotalLength); 934 if (lenp) 935 *lenp = len; 936 cdesc = malloc(len, M_TEMP, M_WAITOK); 937 memcpy(cdesc, tdesc, len); 938 DPRINTFN(5,("ugen_get_cdesc: current, len=%d\n", len)); 939 } else { 940 err = usbd_get_config_desc(sc->sc_udev, index, &cdescr); 941 if (err) 942 return (0); 943 len = UGETW(cdescr.wTotalLength); 944 DPRINTFN(5,("ugen_get_cdesc: index=%d, len=%d\n", index, len)); 945 if (lenp) 946 *lenp = len; 947 cdesc = malloc(len, M_TEMP, M_WAITOK); 948 err = usbd_get_config_desc_full(sc->sc_udev, index, cdesc,len); 949 if (err) { 950 free(cdesc, M_TEMP); 951 return (0); 952 } 953 } 954 return (cdesc); 955 } 956 957 Static int 958 ugen_get_alt_index(struct ugen_softc *sc, int ifaceidx) 959 { 960 usbd_interface_handle iface; 961 usbd_status err; 962 963 err = usbd_device2interface_handle(sc->sc_udev, ifaceidx, &iface); 964 if (err) 965 return (-1); 966 return (usbd_get_interface_altindex(iface)); 967 } 968 969 Static int 970 ugen_do_ioctl(struct ugen_softc *sc, int endpt, u_long cmd, 971 caddr_t addr, int flag, struct proc *p) 972 { 973 struct ugen_endpoint *sce; 974 usbd_status err; 975 usbd_interface_handle iface; 976 struct usb_config_desc *cd; 977 usb_config_descriptor_t *cdesc; 978 struct usb_interface_desc *id; 979 usb_interface_descriptor_t *idesc; 980 struct usb_endpoint_desc *ed; 981 usb_endpoint_descriptor_t *edesc; 982 struct usb_alt_interface *ai; 983 struct usb_string_desc *si; 984 u_int8_t conf, alt; 985 986 DPRINTFN(5, ("ugenioctl: cmd=%08lx\n", cmd)); 987 if (sc->sc_dying) 988 return (EIO); 989 990 switch (cmd) { 991 case FIONBIO: 992 /* All handled in the upper FS layer. */ 993 return (0); 994 case USB_SET_SHORT_XFER: 995 /* This flag only affects read */ 996 if (endpt == USB_CONTROL_ENDPOINT) 997 return (EINVAL); 998 sce = &sc->sc_endpoints[endpt][IN]; 999 if (sce == NULL) 1000 return (EINVAL); 1001 #ifdef DIAGNOSTIC 1002 if (sce->pipeh == NULL) { 1003 printf("ugenioctl: USB_SET_SHORT_XFER, no pipe\n"); 1004 return (EIO); 1005 } 1006 #endif 1007 if (*(int *)addr) 1008 sce->state |= UGEN_SHORT_OK; 1009 else 1010 sce->state &= ~UGEN_SHORT_OK; 1011 return (0); 1012 case USB_SET_TIMEOUT: 1013 sce = &sc->sc_endpoints[endpt][IN]; 1014 if (sce == NULL) 1015 return (EINVAL); 1016 #ifdef DIAGNOSTIC 1017 if (sce->pipeh == NULL) { 1018 printf("ugenioctl: USB_SET_TIMEOUT, no pipe\n"); 1019 return (EIO); 1020 } 1021 #endif 1022 sce->timeout = *(int *)addr; 1023 return (0); 1024 default: 1025 break; 1026 } 1027 1028 if (endpt != USB_CONTROL_ENDPOINT) 1029 return (EINVAL); 1030 1031 switch (cmd) { 1032 #ifdef UGEN_DEBUG 1033 case USB_SETDEBUG: 1034 ugendebug = *(int *)addr; 1035 break; 1036 #endif 1037 case USB_GET_CONFIG: 1038 err = usbd_get_config(sc->sc_udev, &conf); 1039 if (err) 1040 return (EIO); 1041 *(int *)addr = conf; 1042 break; 1043 case USB_SET_CONFIG: 1044 if (!(flag & FWRITE)) 1045 return (EPERM); 1046 err = ugen_set_config(sc, *(int *)addr); 1047 if (err) 1048 return (EIO); 1049 break; 1050 case USB_GET_ALTINTERFACE: 1051 ai = (struct usb_alt_interface *)addr; 1052 err = usbd_device2interface_handle(sc->sc_udev, 1053 ai->interface_index, &iface); 1054 if (err) 1055 return (EINVAL); 1056 idesc = usbd_get_interface_descriptor(iface); 1057 if (idesc == NULL) 1058 return (EIO); 1059 ai->alt_no = idesc->bAlternateSetting; 1060 break; 1061 case USB_SET_ALTINTERFACE: 1062 if (!(flag & FWRITE)) 1063 return (EPERM); 1064 ai = (struct usb_alt_interface *)addr; 1065 err = usbd_device2interface_handle(sc->sc_udev, 1066 ai->interface_index, &iface); 1067 if (err) 1068 return (EINVAL); 1069 err = ugen_set_interface(sc, ai->interface_index, ai->alt_no); 1070 if (err) 1071 return (EINVAL); 1072 break; 1073 case USB_GET_NO_ALT: 1074 ai = (struct usb_alt_interface *)addr; 1075 cdesc = ugen_get_cdesc(sc, ai->config_index, 0); 1076 if (cdesc == NULL) 1077 return (EINVAL); 1078 idesc = usbd_find_idesc(cdesc, ai->interface_index, 0); 1079 if (idesc == NULL) { 1080 free(cdesc, M_TEMP); 1081 return (EINVAL); 1082 } 1083 ai->alt_no = usbd_get_no_alts(cdesc, idesc->bInterfaceNumber); 1084 free(cdesc, M_TEMP); 1085 break; 1086 case USB_GET_DEVICE_DESC: 1087 *(usb_device_descriptor_t *)addr = 1088 *usbd_get_device_descriptor(sc->sc_udev); 1089 break; 1090 case USB_GET_CONFIG_DESC: 1091 cd = (struct usb_config_desc *)addr; 1092 cdesc = ugen_get_cdesc(sc, cd->config_index, 0); 1093 if (cdesc == NULL) 1094 return (EINVAL); 1095 cd->desc = *cdesc; 1096 free(cdesc, M_TEMP); 1097 break; 1098 case USB_GET_INTERFACE_DESC: 1099 id = (struct usb_interface_desc *)addr; 1100 cdesc = ugen_get_cdesc(sc, id->config_index, 0); 1101 if (cdesc == NULL) 1102 return (EINVAL); 1103 if (id->config_index == USB_CURRENT_CONFIG_INDEX && 1104 id->alt_index == USB_CURRENT_ALT_INDEX) 1105 alt = ugen_get_alt_index(sc, id->interface_index); 1106 else 1107 alt = id->alt_index; 1108 idesc = usbd_find_idesc(cdesc, id->interface_index, alt); 1109 if (idesc == NULL) { 1110 free(cdesc, M_TEMP); 1111 return (EINVAL); 1112 } 1113 id->desc = *idesc; 1114 free(cdesc, M_TEMP); 1115 break; 1116 case USB_GET_ENDPOINT_DESC: 1117 ed = (struct usb_endpoint_desc *)addr; 1118 cdesc = ugen_get_cdesc(sc, ed->config_index, 0); 1119 if (cdesc == NULL) 1120 return (EINVAL); 1121 if (ed->config_index == USB_CURRENT_CONFIG_INDEX && 1122 ed->alt_index == USB_CURRENT_ALT_INDEX) 1123 alt = ugen_get_alt_index(sc, ed->interface_index); 1124 else 1125 alt = ed->alt_index; 1126 edesc = usbd_find_edesc(cdesc, ed->interface_index, 1127 alt, ed->endpoint_index); 1128 if (edesc == NULL) { 1129 free(cdesc, M_TEMP); 1130 return (EINVAL); 1131 } 1132 ed->desc = *edesc; 1133 free(cdesc, M_TEMP); 1134 break; 1135 case USB_GET_FULL_DESC: 1136 { 1137 int len; 1138 struct iovec iov; 1139 struct uio uio; 1140 struct usb_full_desc *fd = (struct usb_full_desc *)addr; 1141 int error; 1142 1143 cdesc = ugen_get_cdesc(sc, fd->config_index, &len); 1144 if (len > fd->size) 1145 len = fd->size; 1146 iov.iov_base = (caddr_t)fd->data; 1147 iov.iov_len = len; 1148 uio.uio_iov = &iov; 1149 uio.uio_iovcnt = 1; 1150 uio.uio_resid = len; 1151 uio.uio_offset = 0; 1152 uio.uio_segflg = UIO_USERSPACE; 1153 uio.uio_rw = UIO_READ; 1154 uio.uio_procp = p; 1155 error = uiomove((void *)cdesc, len, &uio); 1156 free(cdesc, M_TEMP); 1157 return (error); 1158 } 1159 case USB_GET_STRING_DESC: 1160 si = (struct usb_string_desc *)addr; 1161 err = usbd_get_string_desc(sc->sc_udev, si->string_index, 1162 si->language_id, &si->desc); 1163 if (err) 1164 return (EINVAL); 1165 break; 1166 case USB_DO_REQUEST: 1167 { 1168 struct usb_ctl_request *ur = (void *)addr; 1169 int len = UGETW(ur->request.wLength); 1170 struct iovec iov; 1171 struct uio uio; 1172 void *ptr = 0; 1173 usbd_status err; 1174 int error = 0; 1175 1176 if (!(flag & FWRITE)) 1177 return (EPERM); 1178 /* Avoid requests that would damage the bus integrity. */ 1179 if ((ur->request.bmRequestType == UT_WRITE_DEVICE && 1180 ur->request.bRequest == UR_SET_ADDRESS) || 1181 (ur->request.bmRequestType == UT_WRITE_DEVICE && 1182 ur->request.bRequest == UR_SET_CONFIG) || 1183 (ur->request.bmRequestType == UT_WRITE_INTERFACE && 1184 ur->request.bRequest == UR_SET_INTERFACE)) 1185 return (EINVAL); 1186 1187 if (len < 0 || len > 32767) 1188 return (EINVAL); 1189 if (len != 0) { 1190 iov.iov_base = (caddr_t)ur->data; 1191 iov.iov_len = len; 1192 uio.uio_iov = &iov; 1193 uio.uio_iovcnt = 1; 1194 uio.uio_resid = len; 1195 uio.uio_offset = 0; 1196 uio.uio_segflg = UIO_USERSPACE; 1197 uio.uio_rw = 1198 ur->request.bmRequestType & UT_READ ? 1199 UIO_READ : UIO_WRITE; 1200 uio.uio_procp = p; 1201 ptr = malloc(len, M_TEMP, M_WAITOK); 1202 if (uio.uio_rw == UIO_WRITE) { 1203 error = uiomove(ptr, len, &uio); 1204 if (error) 1205 goto ret; 1206 } 1207 } 1208 err = usbd_do_request_flags(sc->sc_udev, &ur->request, 1209 ptr, ur->flags, &ur->actlen); 1210 if (err) { 1211 error = EIO; 1212 goto ret; 1213 } 1214 if (len != 0) { 1215 if (uio.uio_rw == UIO_READ) { 1216 error = uiomove(ptr, len, &uio); 1217 if (error) 1218 goto ret; 1219 } 1220 } 1221 ret: 1222 if (ptr) 1223 free(ptr, M_TEMP); 1224 return (error); 1225 } 1226 case USB_GET_DEVICEINFO: 1227 usbd_fill_deviceinfo(sc->sc_udev, 1228 (struct usb_device_info *)addr); 1229 break; 1230 default: 1231 return (EINVAL); 1232 } 1233 return (0); 1234 } 1235 1236 int 1237 ugenioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 1238 { 1239 int endpt = UGENENDPOINT(dev); 1240 struct ugen_softc *sc; 1241 int error; 1242 1243 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1244 1245 sc->sc_refcnt++; 1246 error = ugen_do_ioctl(sc, endpt, cmd, addr, flag, p); 1247 if (--sc->sc_refcnt < 0) 1248 usb_detach_wakeup(USBDEV(sc->sc_dev)); 1249 return (error); 1250 } 1251 1252 int 1253 ugenpoll(dev_t dev, int events, struct proc *p) 1254 { 1255 struct ugen_softc *sc; 1256 struct ugen_endpoint *sce; 1257 int revents = 0; 1258 int s; 1259 1260 USB_GET_SC(ugen, UGENUNIT(dev), sc); 1261 1262 if (sc->sc_dying) 1263 return (EIO); 1264 1265 /* XXX always IN */ 1266 sce = &sc->sc_endpoints[UGENENDPOINT(dev)][IN]; 1267 if (sce == NULL) 1268 return (EINVAL); 1269 #ifdef DIAGNOSTIC 1270 if (!sce->edesc) { 1271 printf("ugenpoll: no edesc\n"); 1272 return (EIO); 1273 } 1274 if (!sce->pipeh) { 1275 printf("ugenpoll: no pipe\n"); 1276 return (EIO); 1277 } 1278 #endif 1279 s = splusb(); 1280 switch (sce->edesc->bmAttributes & UE_XFERTYPE) { 1281 case UE_INTERRUPT: 1282 if (events & (POLLIN | POLLRDNORM)) { 1283 if (sce->q.c_cc > 0) 1284 revents |= events & (POLLIN | POLLRDNORM); 1285 else 1286 selrecord(p, &sce->rsel); 1287 } 1288 break; 1289 case UE_ISOCHRONOUS: 1290 if (events & (POLLIN | POLLRDNORM)) { 1291 if (sce->cur != sce->fill) 1292 revents |= events & (POLLIN | POLLRDNORM); 1293 else 1294 selrecord(p, &sce->rsel); 1295 } 1296 break; 1297 case UE_BULK: 1298 /* 1299 * We have no easy way of determining if a read will 1300 * yield any data or a write will happen. 1301 * Pretend they will. 1302 */ 1303 revents |= events & 1304 (POLLIN | POLLRDNORM | POLLOUT | POLLWRNORM); 1305 break; 1306 default: 1307 break; 1308 } 1309 splx(s); 1310 return (revents); 1311 } 1312 1313 #if defined(__FreeBSD__) 1314 DRIVER_MODULE(ugen, uhub, ugen_driver, ugen_devclass, usbd_driver_load, 0); 1315 #endif 1316
Indexes created Thu Sep 25 16:09:42 GMT 2025