1 /* $OpenBSD: uhid.c,v 1.14 2001/05/03 02:20:33 aaron Exp $ */ 2 /* $NetBSD: uhid.c,v 1.42 2000/12/29 01:47:49 augustss Exp $ */ 3 /* $FreeBSD: src/sys/dev/usb/uhid.c,v 1.22 1999/11/17 22:33:43 n_hibma Exp $ */ 4 5 /* 6 * Copyright (c) 1998 The NetBSD Foundation, Inc. 7 * All rights reserved. 8 * 9 * This code is derived from software contributed to The NetBSD Foundation 10 * by Lennart Augustsson (lennart@augustsson.net) at 11 * Carlstedt Research & Technology. 12 * 13 * Redistribution and use in source and binary forms, with or without 14 * modification, are permitted provided that the following conditions 15 * are met: 16 * 1. Redistributions of source code must retain the above copyright 17 * notice, this list of conditions and the following disclaimer. 18 * 2. Redistributions in binary form must reproduce the above copyright 19 * notice, this list of conditions and the following disclaimer in the 20 * documentation and/or other materials provided with the distribution. 21 * 3. All advertising materials mentioning features or use of this software 22 * must display the following acknowledgement: 23 * This product includes software developed by the NetBSD 24 * Foundation, Inc. and its contributors. 25 * 4. Neither the name of The NetBSD Foundation nor the names of its 26 * contributors may be used to endorse or promote products derived 27 * from this software without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 30 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 31 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 32 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 33 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 36 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 37 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 39 * POSSIBILITY OF SUCH DAMAGE. 40 */ 41 42 /* 43 * HID spec: http://www.usb.org/developers/data/devclass/hid1_1.pdf 44 */ 45 46 #include <sys/param.h> 47 #include <sys/systm.h> 48 #include <sys/kernel.h> 49 #include <sys/malloc.h> 50 #include <sys/signalvar.h> 51 #if defined(__NetBSD__) || defined(__OpenBSD__) 52 #include <sys/device.h> 53 #include <sys/ioctl.h> 54 #elif defined(__FreeBSD__) 55 #include <sys/ioccom.h> 56 #include <sys/filio.h> 57 #include <sys/module.h> 58 #include <sys/bus.h> 59 #include <sys/ioccom.h> 60 #endif 61 #include <sys/conf.h> 62 #include <sys/tty.h> 63 #include <sys/file.h> 64 #include <sys/select.h> 65 #include <sys/proc.h> 66 #include <sys/vnode.h> 67 #include <sys/poll.h> 68 69 #include <dev/usb/usb.h> 70 #include <dev/usb/usbhid.h> 71 72 #include <dev/usb/usbdevs.h> 73 #include <dev/usb/usbdi.h> 74 #include <dev/usb/usbdi_util.h> 75 #include <dev/usb/hid.h> 76 #include <dev/usb/usb_quirks.h> 77 78 /* Report descriptor for broken Wacom Graphire */ 79 #include <dev/usb/ugraphire_rdesc.h> 80 81 #ifdef UHID_DEBUG 82 #define DPRINTF(x) if (uhiddebug) logprintf x 83 #define DPRINTFN(n,x) if (uhiddebug>(n)) logprintf x 84 int uhiddebug = 0; 85 #else 86 #define DPRINTF(x) 87 #define DPRINTFN(n,x) 88 #endif 89 90 struct uhid_softc { 91 USBBASEDEVICE sc_dev; /* base device */ 92 usbd_device_handle sc_udev; 93 usbd_interface_handle sc_iface; /* interface */ 94 usbd_pipe_handle sc_intrpipe; /* interrupt pipe */ 95 int sc_ep_addr; 96 97 int sc_isize; 98 int sc_osize; 99 int sc_fsize; 100 u_int8_t sc_iid; 101 u_int8_t sc_oid; 102 u_int8_t sc_fid; 103 104 u_char *sc_ibuf; 105 u_char *sc_obuf; 106 107 void *sc_repdesc; 108 int sc_repdesc_size; 109 110 struct clist sc_q; 111 struct selinfo sc_rsel; 112 struct proc *sc_async; /* process that wants SIGIO */ 113 u_char sc_state; /* driver state */ 114 #define UHID_OPEN 0x01 /* device is open */ 115 #define UHID_ASLP 0x02 /* waiting for device data */ 116 #define UHID_NEEDCLEAR 0x04 /* needs clearing endpoint stall */ 117 #define UHID_IMMED 0x08 /* return read data immediately */ 118 119 int sc_refcnt; 120 u_char sc_dying; 121 }; 122 123 #define UHIDUNIT(dev) (minor(dev)) 124 #define UHID_CHUNK 128 /* chunk size for read */ 125 #define UHID_BSIZE 1020 /* buffer size */ 126 127 #if defined(__NetBSD__) || defined(__OpenBSD__) 128 cdev_decl(uhid); 129 #elif defined(__FreeBSD__) 130 d_open_t uhidopen; 131 d_close_t uhidclose; 132 d_read_t uhidread; 133 d_write_t uhidwrite; 134 d_ioctl_t uhidioctl; 135 d_poll_t uhidpoll; 136 137 #define UHID_CDEV_MAJOR 122 138 139 Static struct cdevsw uhid_cdevsw = { 140 /* open */ uhidopen, 141 /* close */ uhidclose, 142 /* read */ uhidread, 143 /* write */ uhidwrite, 144 /* ioctl */ uhidioctl, 145 /* poll */ uhidpoll, 146 /* mmap */ nommap, 147 /* strategy */ nostrategy, 148 /* name */ "uhid", 149 /* maj */ UHID_CDEV_MAJOR, 150 /* dump */ nodump, 151 /* psize */ nopsize, 152 /* flags */ 0, 153 /* bmaj */ -1 154 }; 155 #endif 156 157 Static void uhid_intr(usbd_xfer_handle, usbd_private_handle, usbd_status); 158 159 Static int uhid_do_read(struct uhid_softc *, struct uio *uio, int); 160 Static int uhid_do_write(struct uhid_softc *, struct uio *uio, int); 161 Static int uhid_do_ioctl(struct uhid_softc*, u_long, caddr_t, int,struct proc*); 162 163 USB_DECLARE_DRIVER(uhid); 164 165 USB_MATCH(uhid) 166 { 167 USB_MATCH_START(uhid, uaa); 168 usb_interface_descriptor_t *id; 169 170 if (uaa->iface == NULL) 171 return (UMATCH_NONE); 172 id = usbd_get_interface_descriptor(uaa->iface); 173 if (id == NULL || id->bInterfaceClass != UICLASS_HID) 174 return (UMATCH_NONE); 175 return (UMATCH_IFACECLASS_GENERIC); 176 } 177 178 USB_ATTACH(uhid) 179 { 180 USB_ATTACH_START(uhid, sc, uaa); 181 usbd_interface_handle iface = uaa->iface; 182 usb_interface_descriptor_t *id; 183 usb_endpoint_descriptor_t *ed; 184 int size; 185 void *desc; 186 usbd_status err; 187 char devinfo[1024]; 188 189 sc->sc_udev = uaa->device; 190 sc->sc_iface = iface; 191 id = usbd_get_interface_descriptor(iface); 192 usbd_devinfo(uaa->device, 0, devinfo); 193 USB_ATTACH_SETUP; 194 printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), 195 devinfo, id->bInterfaceClass, id->bInterfaceSubClass); 196 197 ed = usbd_interface2endpoint_descriptor(iface, 0); 198 if (ed == NULL) { 199 printf("%s: could not read endpoint descriptor\n", 200 USBDEVNAME(sc->sc_dev)); 201 sc->sc_dying = 1; 202 USB_ATTACH_ERROR_RETURN; 203 } 204 205 DPRINTFN(10,("uhid_attach: bLength=%d bDescriptorType=%d " 206 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d" 207 " bInterval=%d\n", 208 ed->bLength, ed->bDescriptorType, 209 ed->bEndpointAddress & UE_ADDR, 210 UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out", 211 ed->bmAttributes & UE_XFERTYPE, 212 UGETW(ed->wMaxPacketSize), ed->bInterval)); 213 214 if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN || 215 (ed->bmAttributes & UE_XFERTYPE) != UE_INTERRUPT) { 216 printf("%s: unexpected endpoint\n", USBDEVNAME(sc->sc_dev)); 217 sc->sc_dying = 1; 218 USB_ATTACH_ERROR_RETURN; 219 } 220 221 sc->sc_ep_addr = ed->bEndpointAddress; 222 223 if (uaa->vendor == USB_VENDOR_WACOM && 224 uaa->product == USB_PRODUCT_WACOM_GRAPHIRE /* && 225 uaa->revision == 0x???? */) { /* XXX should use revision */ 226 /* The report descriptor for the Wacom Graphire is broken. */ 227 size = sizeof uhid_graphire_report_descr; 228 desc = malloc(size, M_USBDEV, M_NOWAIT); 229 if (desc == NULL) 230 err = USBD_NOMEM; 231 else { 232 err = USBD_NORMAL_COMPLETION; 233 memcpy(desc, uhid_graphire_report_descr, size); 234 } 235 } else { 236 desc = NULL; 237 err = usbd_alloc_report_desc(uaa->iface, &desc, &size,M_USBDEV); 238 } 239 if (err) { 240 printf("%s: no report descriptor\n", USBDEVNAME(sc->sc_dev)); 241 sc->sc_dying = 1; 242 USB_ATTACH_ERROR_RETURN; 243 } 244 245 (void)usbd_set_idle(iface, 0, 0); 246 247 sc->sc_isize = hid_report_size(desc, size, hid_input, &sc->sc_iid); 248 sc->sc_osize = hid_report_size(desc, size, hid_output, &sc->sc_oid); 249 sc->sc_fsize = hid_report_size(desc, size, hid_feature, &sc->sc_fid); 250 251 sc->sc_repdesc = desc; 252 sc->sc_repdesc_size = size; 253 254 #ifdef __FreeBSD__ 255 { 256 static int global_init_done = 0; 257 258 if (!global_init_done) { 259 cdevsw_add(&uhid_cdevsw); 260 global_init_done = 1; 261 } 262 } 263 #endif 264 265 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 266 USBDEV(sc->sc_dev)); 267 268 USB_ATTACH_SUCCESS_RETURN; 269 } 270 271 #if defined(__NetBSD__) || defined(__OpenBSD__) 272 int 273 uhid_activate(device_ptr_t self, enum devact act) 274 { 275 struct uhid_softc *sc = (struct uhid_softc *)self; 276 277 switch (act) { 278 case DVACT_ACTIVATE: 279 return (EOPNOTSUPP); 280 break; 281 282 case DVACT_DEACTIVATE: 283 sc->sc_dying = 1; 284 break; 285 } 286 return (0); 287 } 288 #endif 289 290 USB_DETACH(uhid) 291 { 292 USB_DETACH_START(uhid, sc); 293 int s; 294 #if defined(__NetBSD__) || defined(__OpenBSD__) 295 int maj, mn; 296 297 DPRINTF(("uhid_detach: sc=%p flags=%d\n", sc, flags)); 298 #else 299 DPRINTF(("uhid_detach: sc=%p\n", sc)); 300 #endif 301 302 sc->sc_dying = 1; 303 if (sc->sc_intrpipe != NULL) 304 usbd_abort_pipe(sc->sc_intrpipe); 305 306 if (sc->sc_state & UHID_OPEN) { 307 s = splusb(); 308 if (--sc->sc_refcnt >= 0) { 309 /* Wake everyone */ 310 wakeup(&sc->sc_q); 311 /* Wait for processes to go away. */ 312 usb_detach_wait(USBDEV(sc->sc_dev)); 313 } 314 splx(s); 315 } 316 317 #if defined(__NetBSD__) || defined(__OpenBSD__) 318 /* locate the major number */ 319 for (maj = 0; maj < nchrdev; maj++) 320 if (cdevsw[maj].d_open == uhidopen) 321 break; 322 323 /* Nuke the vnodes for any open instances (calls close). */ 324 mn = self->dv_unit; 325 vdevgone(maj, mn, mn, VCHR); 326 #elif defined(__FreeBSD__) 327 /* XXX not implemented yet */ 328 #endif 329 330 if (sc->sc_repdesc) 331 free(sc->sc_repdesc, M_USBDEV); 332 333 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 334 USBDEV(sc->sc_dev)); 335 336 return (0); 337 } 338 339 void 340 uhid_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) 341 { 342 struct uhid_softc *sc = addr; 343 344 #ifdef UHID_DEBUG 345 if (uhiddebug > 5) { 346 u_int32_t cc, i; 347 348 usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL); 349 DPRINTF(("uhid_intr: status=%d cc=%d\n", status, cc)); 350 DPRINTF(("uhid_intr: data =")); 351 for (i = 0; i < cc; i++) 352 DPRINTF((" %02x", sc->sc_ibuf[i])); 353 DPRINTF(("\n")); 354 } 355 #endif 356 357 if (status == USBD_CANCELLED) 358 return; 359 360 if (status != USBD_NORMAL_COMPLETION) { 361 DPRINTF(("uhid_intr: status=%d\n", status)); 362 sc->sc_state |= UHID_NEEDCLEAR; 363 return; 364 } 365 366 (void) b_to_q(sc->sc_ibuf, sc->sc_isize, &sc->sc_q); 367 368 if (sc->sc_state & UHID_ASLP) { 369 sc->sc_state &= ~UHID_ASLP; 370 DPRINTFN(5, ("uhid_intr: waking %p\n", sc)); 371 wakeup(&sc->sc_q); 372 } 373 selwakeup(&sc->sc_rsel); 374 if (sc->sc_async != NULL) { 375 DPRINTFN(3, ("uhid_intr: sending SIGIO %p\n", sc->sc_async)); 376 psignal(sc->sc_async, SIGIO); 377 } 378 } 379 380 int 381 uhidopen(dev_t dev, int flag, int mode, struct proc *p) 382 { 383 struct uhid_softc *sc; 384 usbd_status err; 385 386 USB_GET_SC_OPEN(uhid, UHIDUNIT(dev), sc); 387 388 DPRINTF(("uhidopen: sc=%p\n", sc)); 389 390 if (sc->sc_dying) 391 return (ENXIO); 392 393 if (sc->sc_state & UHID_OPEN) 394 return (EBUSY); 395 sc->sc_state |= UHID_OPEN; 396 397 if (clalloc(&sc->sc_q, UHID_BSIZE, 0) == -1) { 398 sc->sc_state &= ~UHID_OPEN; 399 return (ENOMEM); 400 } 401 402 sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 403 sc->sc_obuf = malloc(sc->sc_osize, M_USBDEV, M_WAITOK); 404 405 /* Set up interrupt pipe. */ 406 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr, 407 USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc, sc->sc_ibuf, 408 sc->sc_isize, uhid_intr, USBD_DEFAULT_INTERVAL); 409 if (err) { 410 DPRINTF(("uhidopen: usbd_open_pipe_intr failed, " 411 "error=%d\n",err)); 412 free(sc->sc_ibuf, M_USBDEV); 413 free(sc->sc_obuf, M_USBDEV); 414 sc->sc_state &= ~UHID_OPEN; 415 return (EIO); 416 } 417 418 sc->sc_state &= ~UHID_IMMED; 419 420 sc->sc_async = 0; 421 422 return (0); 423 } 424 425 int 426 uhidclose(dev_t dev, int flag, int mode, struct proc *p) 427 { 428 struct uhid_softc *sc; 429 430 USB_GET_SC(uhid, UHIDUNIT(dev), sc); 431 432 DPRINTF(("uhidclose: sc=%p\n", sc)); 433 434 /* Disable interrupts. */ 435 usbd_abort_pipe(sc->sc_intrpipe); 436 usbd_close_pipe(sc->sc_intrpipe); 437 sc->sc_intrpipe = 0; 438 439 clfree(&sc->sc_q); 440 441 free(sc->sc_ibuf, M_USBDEV); 442 free(sc->sc_obuf, M_USBDEV); 443 444 sc->sc_state &= ~UHID_OPEN; 445 446 sc->sc_async = 0; 447 448 return (0); 449 } 450 451 int 452 uhid_do_read(struct uhid_softc *sc, struct uio *uio, int flag) 453 { 454 int s; 455 int error = 0; 456 size_t length; 457 u_char buffer[UHID_CHUNK]; 458 usbd_status err; 459 460 DPRINTFN(1, ("uhidread\n")); 461 if (sc->sc_state & UHID_IMMED) { 462 DPRINTFN(1, ("uhidread immed\n")); 463 464 err = usbd_get_report(sc->sc_iface, UHID_INPUT_REPORT, 465 sc->sc_iid, buffer, sc->sc_isize); 466 if (err) 467 return (EIO); 468 return (uiomove(buffer, sc->sc_isize, uio)); 469 } 470 471 s = splusb(); 472 while (sc->sc_q.c_cc == 0) { 473 if (flag & IO_NDELAY) { 474 splx(s); 475 return (EWOULDBLOCK); 476 } 477 sc->sc_state |= UHID_ASLP; 478 DPRINTFN(5, ("uhidread: sleep on %p\n", sc)); 479 error = tsleep(&sc->sc_q, PZERO | PCATCH, "uhidrea", 0); 480 DPRINTFN(5, ("uhidread: woke, error=%d\n", error)); 481 if (sc->sc_dying) 482 error = EIO; 483 if (error) { 484 sc->sc_state &= ~UHID_ASLP; 485 break; 486 } 487 if (sc->sc_state & UHID_NEEDCLEAR) { 488 DPRINTFN(-1,("uhidread: clearing stall\n")); 489 sc->sc_state &= ~UHID_NEEDCLEAR; 490 usbd_clear_endpoint_stall(sc->sc_intrpipe); 491 } 492 } 493 splx(s); 494 495 /* Transfer as many chunks as possible. */ 496 while (sc->sc_q.c_cc > 0 && uio->uio_resid > 0 && !error) { 497 length = min(sc->sc_q.c_cc, uio->uio_resid); 498 if (length > sizeof(buffer)) 499 length = sizeof(buffer); 500 501 /* Remove a small chunk from the input queue. */ 502 (void) q_to_b(&sc->sc_q, buffer, length); 503 DPRINTFN(5, ("uhidread: got %lu chars\n", (u_long)length)); 504 505 /* Copy the data to the user process. */ 506 if ((error = uiomove(buffer, length, uio)) != 0) 507 break; 508 } 509 510 return (error); 511 } 512 513 int 514 uhidread(dev_t dev, struct uio *uio, int flag) 515 { 516 struct uhid_softc *sc; 517 int error; 518 519 USB_GET_SC(uhid, UHIDUNIT(dev), sc); 520 521 sc->sc_refcnt++; 522 error = uhid_do_read(sc, uio, flag); 523 if (--sc->sc_refcnt < 0) 524 usb_detach_wakeup(USBDEV(sc->sc_dev)); 525 return (error); 526 } 527 528 int 529 uhid_do_write(struct uhid_softc *sc, struct uio *uio, int flag) 530 { 531 int error; 532 int size; 533 usbd_status err; 534 535 DPRINTFN(1, ("uhidwrite\n")); 536 537 if (sc->sc_dying) 538 return (EIO); 539 540 size = sc->sc_osize; 541 error = 0; 542 if (uio->uio_resid != size) 543 return (EINVAL); 544 error = uiomove(sc->sc_obuf, size, uio); 545 if (!error) { 546 if (sc->sc_oid) 547 err = usbd_set_report(sc->sc_iface, UHID_OUTPUT_REPORT, 548 sc->sc_obuf[0], sc->sc_obuf+1, size-1); 549 else 550 err = usbd_set_report(sc->sc_iface, UHID_OUTPUT_REPORT, 551 0, sc->sc_obuf, size); 552 if (err) 553 error = EIO; 554 } 555 556 return (error); 557 } 558 559 int 560 uhidwrite(dev_t dev, struct uio *uio, int flag) 561 { 562 struct uhid_softc *sc; 563 int error; 564 565 USB_GET_SC(uhid, UHIDUNIT(dev), sc); 566 567 sc->sc_refcnt++; 568 error = uhid_do_write(sc, uio, flag); 569 if (--sc->sc_refcnt < 0) 570 usb_detach_wakeup(USBDEV(sc->sc_dev)); 571 return (error); 572 } 573 574 int 575 uhid_do_ioctl(struct uhid_softc *sc, u_long cmd, caddr_t addr, 576 int flag, struct proc *p) 577 { 578 struct usb_ctl_report_desc *rd; 579 struct usb_ctl_report *re; 580 int size, id; 581 usbd_status err; 582 583 DPRINTFN(2, ("uhidioctl: cmd=%lx\n", cmd)); 584 585 if (sc->sc_dying) 586 return (EIO); 587 588 switch (cmd) { 589 case FIONBIO: 590 /* All handled in the upper FS layer. */ 591 break; 592 593 case FIOASYNC: 594 if (*(int *)addr) { 595 if (sc->sc_async != NULL) 596 return (EBUSY); 597 sc->sc_async = p; 598 DPRINTF(("uhid_do_ioctl: FIOASYNC %p\n", p)); 599 } else 600 sc->sc_async = NULL; 601 break; 602 603 /* XXX this is not the most general solution. */ 604 case TIOCSPGRP: 605 if (sc->sc_async == NULL) 606 return (EINVAL); 607 if (*(int *)addr != sc->sc_async->p_pgid) 608 return (EPERM); 609 break; 610 611 case USB_GET_REPORT_DESC: 612 rd = (struct usb_ctl_report_desc *)addr; 613 size = min(sc->sc_repdesc_size, sizeof rd->data); 614 rd->size = size; 615 memcpy(rd->data, sc->sc_repdesc, size); 616 break; 617 618 case USB_SET_IMMED: 619 if (*(int *)addr) { 620 /* XXX should read into ibuf, but does it matter? */ 621 err = usbd_get_report(sc->sc_iface, UHID_INPUT_REPORT, 622 sc->sc_iid, sc->sc_ibuf, sc->sc_isize); 623 if (err) 624 return (EOPNOTSUPP); 625 626 sc->sc_state |= UHID_IMMED; 627 } else 628 sc->sc_state &= ~UHID_IMMED; 629 break; 630 631 case USB_GET_REPORT: 632 re = (struct usb_ctl_report *)addr; 633 switch (re->report) { 634 case UHID_INPUT_REPORT: 635 size = sc->sc_isize; 636 id = sc->sc_iid; 637 break; 638 case UHID_OUTPUT_REPORT: 639 size = sc->sc_osize; 640 id = sc->sc_oid; 641 break; 642 case UHID_FEATURE_REPORT: 643 size = sc->sc_fsize; 644 id = sc->sc_fid; 645 break; 646 default: 647 return (EINVAL); 648 } 649 err = usbd_get_report(sc->sc_iface, re->report, id, re->data, 650 size); 651 if (err) 652 return (EIO); 653 break; 654 655 case USB_SET_REPORT: 656 re = (struct usb_ctl_report *)addr; 657 switch (re->report) { 658 case UHID_INPUT_REPORT: 659 size = sc->sc_isize; 660 id = sc->sc_iid; 661 break; 662 case UHID_OUTPUT_REPORT: 663 size = sc->sc_osize; 664 id = sc->sc_oid; 665 break; 666 case UHID_FEATURE_REPORT: 667 size = sc->sc_fsize; 668 id = sc->sc_fid; 669 break; 670 default: 671 return (EINVAL); 672 } 673 err = usbd_set_report(sc->sc_iface, re->report, id, re->data, 674 size); 675 if (err) 676 return (EIO); 677 break; 678 679 default: 680 return (EINVAL); 681 } 682 return (0); 683 } 684 685 int 686 uhidioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 687 { 688 struct uhid_softc *sc; 689 int error; 690 691 USB_GET_SC(uhid, UHIDUNIT(dev), sc); 692 693 sc->sc_refcnt++; 694 error = uhid_do_ioctl(sc, cmd, addr, flag, p); 695 if (--sc->sc_refcnt < 0) 696 usb_detach_wakeup(USBDEV(sc->sc_dev)); 697 return (error); 698 } 699 700 int 701 uhidpoll(dev_t dev, int events, struct proc *p) 702 { 703 struct uhid_softc *sc; 704 int revents = 0; 705 int s; 706 707 USB_GET_SC(uhid, UHIDUNIT(dev), sc); 708 709 if (sc->sc_dying) 710 return (EIO); 711 712 s = splusb(); 713 if (events & (POLLOUT | POLLWRNORM)) 714 revents |= events & (POLLOUT | POLLWRNORM); 715 if (events & (POLLIN | POLLRDNORM)) { 716 if (sc->sc_q.c_cc > 0) 717 revents |= events & (POLLIN | POLLRDNORM); 718 else 719 selrecord(p, &sc->sc_rsel); 720 } 721 722 splx(s); 723 return (revents); 724 } 725 726 #if defined(__FreeBSD__) 727 DRIVER_MODULE(uhid, uhub, uhid_driver, uhid_devclass, usbd_driver_load, 0); 728 #endif 729