1 /* $OpenBSD: uhid.c,v 1.15 2001/10/31 04:24:44 nate Exp $ */ 2 /* $NetBSD: uhid.c,v 1.45 2001/10/26 17:58:21 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 if (uaa->matchlvl) 176 return (uaa->matchlvl); 177 return (UMATCH_IFACECLASS_GENERIC); 178 } 179 180 USB_ATTACH(uhid) 181 { 182 USB_ATTACH_START(uhid, sc, uaa); 183 usbd_interface_handle iface = uaa->iface; 184 usb_interface_descriptor_t *id; 185 usb_endpoint_descriptor_t *ed; 186 int size; 187 void *desc; 188 usbd_status err; 189 char devinfo[1024]; 190 191 sc->sc_udev = uaa->device; 192 sc->sc_iface = iface; 193 id = usbd_get_interface_descriptor(iface); 194 usbd_devinfo(uaa->device, 0, devinfo); 195 USB_ATTACH_SETUP; 196 printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev), 197 devinfo, id->bInterfaceClass, id->bInterfaceSubClass); 198 199 ed = usbd_interface2endpoint_descriptor(iface, 0); 200 if (ed == NULL) { 201 printf("%s: could not read endpoint descriptor\n", 202 USBDEVNAME(sc->sc_dev)); 203 sc->sc_dying = 1; 204 USB_ATTACH_ERROR_RETURN; 205 } 206 207 DPRINTFN(10,("uhid_attach: bLength=%d bDescriptorType=%d " 208 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d" 209 " bInterval=%d\n", 210 ed->bLength, ed->bDescriptorType, 211 ed->bEndpointAddress & UE_ADDR, 212 UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out", 213 ed->bmAttributes & UE_XFERTYPE, 214 UGETW(ed->wMaxPacketSize), ed->bInterval)); 215 216 if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN || 217 (ed->bmAttributes & UE_XFERTYPE) != UE_INTERRUPT) { 218 printf("%s: unexpected endpoint\n", USBDEVNAME(sc->sc_dev)); 219 sc->sc_dying = 1; 220 USB_ATTACH_ERROR_RETURN; 221 } 222 223 sc->sc_ep_addr = ed->bEndpointAddress; 224 225 if (uaa->vendor == USB_VENDOR_WACOM && 226 uaa->product == USB_PRODUCT_WACOM_GRAPHIRE /* && 227 uaa->revision == 0x???? */) { /* XXX should use revision */ 228 /* The report descriptor for the Wacom Graphire is broken. */ 229 size = sizeof uhid_graphire_report_descr; 230 desc = malloc(size, M_USBDEV, M_NOWAIT); 231 if (desc == NULL) 232 err = USBD_NOMEM; 233 else { 234 err = USBD_NORMAL_COMPLETION; 235 memcpy(desc, uhid_graphire_report_descr, size); 236 } 237 } else { 238 desc = NULL; 239 err = usbd_read_report_desc(uaa->iface, &desc, &size,M_USBDEV); 240 } 241 if (err) { 242 printf("%s: no report descriptor\n", USBDEVNAME(sc->sc_dev)); 243 sc->sc_dying = 1; 244 USB_ATTACH_ERROR_RETURN; 245 } 246 247 (void)usbd_set_idle(iface, 0, 0); 248 249 sc->sc_isize = hid_report_size(desc, size, hid_input, &sc->sc_iid); 250 sc->sc_osize = hid_report_size(desc, size, hid_output, &sc->sc_oid); 251 sc->sc_fsize = hid_report_size(desc, size, hid_feature, &sc->sc_fid); 252 253 sc->sc_repdesc = desc; 254 sc->sc_repdesc_size = size; 255 256 #ifdef __FreeBSD__ 257 { 258 static int global_init_done = 0; 259 260 if (!global_init_done) { 261 cdevsw_add(&uhid_cdevsw); 262 global_init_done = 1; 263 } 264 } 265 #endif 266 267 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, 268 USBDEV(sc->sc_dev)); 269 270 USB_ATTACH_SUCCESS_RETURN; 271 } 272 273 #if defined(__NetBSD__) || defined(__OpenBSD__) 274 int 275 uhid_activate(device_ptr_t self, enum devact act) 276 { 277 struct uhid_softc *sc = (struct uhid_softc *)self; 278 279 switch (act) { 280 case DVACT_ACTIVATE: 281 return (EOPNOTSUPP); 282 break; 283 284 case DVACT_DEACTIVATE: 285 sc->sc_dying = 1; 286 break; 287 } 288 return (0); 289 } 290 #endif 291 292 USB_DETACH(uhid) 293 { 294 USB_DETACH_START(uhid, sc); 295 int s; 296 #if defined(__NetBSD__) || defined(__OpenBSD__) 297 int maj, mn; 298 299 DPRINTF(("uhid_detach: sc=%p flags=%d\n", sc, flags)); 300 #else 301 DPRINTF(("uhid_detach: sc=%p\n", sc)); 302 #endif 303 304 sc->sc_dying = 1; 305 if (sc->sc_intrpipe != NULL) 306 usbd_abort_pipe(sc->sc_intrpipe); 307 308 if (sc->sc_state & UHID_OPEN) { 309 s = splusb(); 310 if (--sc->sc_refcnt >= 0) { 311 /* Wake everyone */ 312 wakeup(&sc->sc_q); 313 /* Wait for processes to go away. */ 314 usb_detach_wait(USBDEV(sc->sc_dev)); 315 } 316 splx(s); 317 } 318 319 #if defined(__NetBSD__) || defined(__OpenBSD__) 320 /* locate the major number */ 321 for (maj = 0; maj < nchrdev; maj++) 322 if (cdevsw[maj].d_open == uhidopen) 323 break; 324 325 /* Nuke the vnodes for any open instances (calls close). */ 326 mn = self->dv_unit; 327 vdevgone(maj, mn, mn, VCHR); 328 #elif defined(__FreeBSD__) 329 /* XXX not implemented yet */ 330 #endif 331 332 if (sc->sc_repdesc) 333 free(sc->sc_repdesc, M_USBDEV); 334 335 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, 336 USBDEV(sc->sc_dev)); 337 338 return (0); 339 } 340 341 void 342 uhid_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status) 343 { 344 struct uhid_softc *sc = addr; 345 346 #ifdef UHID_DEBUG 347 if (uhiddebug > 5) { 348 u_int32_t cc, i; 349 350 usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL); 351 DPRINTF(("uhid_intr: status=%d cc=%d\n", status, cc)); 352 DPRINTF(("uhid_intr: data =")); 353 for (i = 0; i < cc; i++) 354 DPRINTF((" %02x", sc->sc_ibuf[i])); 355 DPRINTF(("\n")); 356 } 357 #endif 358 359 if (status == USBD_CANCELLED) 360 return; 361 362 if (status != USBD_NORMAL_COMPLETION) { 363 DPRINTF(("uhid_intr: status=%d\n", status)); 364 sc->sc_state |= UHID_NEEDCLEAR; 365 return; 366 } 367 368 (void) b_to_q(sc->sc_ibuf, sc->sc_isize, &sc->sc_q); 369 370 if (sc->sc_state & UHID_ASLP) { 371 sc->sc_state &= ~UHID_ASLP; 372 DPRINTFN(5, ("uhid_intr: waking %p\n", &sc->sc_q)); 373 wakeup(&sc->sc_q); 374 } 375 selwakeup(&sc->sc_rsel); 376 if (sc->sc_async != NULL) { 377 DPRINTFN(3, ("uhid_intr: sending SIGIO %p\n", sc->sc_async)); 378 psignal(sc->sc_async, SIGIO); 379 } 380 } 381 382 int 383 uhidopen(dev_t dev, int flag, int mode, struct proc *p) 384 { 385 struct uhid_softc *sc; 386 usbd_status err; 387 388 USB_GET_SC_OPEN(uhid, UHIDUNIT(dev), sc); 389 390 DPRINTF(("uhidopen: sc=%p\n", sc)); 391 392 if (sc->sc_dying) 393 return (ENXIO); 394 395 if (sc->sc_state & UHID_OPEN) 396 return (EBUSY); 397 sc->sc_state |= UHID_OPEN; 398 399 if (clalloc(&sc->sc_q, UHID_BSIZE, 0) == -1) { 400 sc->sc_state &= ~UHID_OPEN; 401 return (ENOMEM); 402 } 403 404 sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 405 sc->sc_obuf = malloc(sc->sc_osize, M_USBDEV, M_WAITOK); 406 407 /* Set up interrupt pipe. */ 408 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr, 409 USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc, sc->sc_ibuf, 410 sc->sc_isize, uhid_intr, USBD_DEFAULT_INTERVAL); 411 if (err) { 412 DPRINTF(("uhidopen: usbd_open_pipe_intr failed, " 413 "error=%d\n",err)); 414 free(sc->sc_ibuf, M_USBDEV); 415 free(sc->sc_obuf, M_USBDEV); 416 sc->sc_state &= ~UHID_OPEN; 417 return (EIO); 418 } 419 420 sc->sc_state &= ~UHID_IMMED; 421 422 sc->sc_async = 0; 423 424 return (0); 425 } 426 427 int 428 uhidclose(dev_t dev, int flag, int mode, struct proc *p) 429 { 430 struct uhid_softc *sc; 431 432 USB_GET_SC(uhid, UHIDUNIT(dev), sc); 433 434 DPRINTF(("uhidclose: sc=%p\n", sc)); 435 436 /* Disable interrupts. */ 437 usbd_abort_pipe(sc->sc_intrpipe); 438 usbd_close_pipe(sc->sc_intrpipe); 439 sc->sc_intrpipe = 0; 440 441 clfree(&sc->sc_q); 442 443 free(sc->sc_ibuf, M_USBDEV); 444 free(sc->sc_obuf, M_USBDEV); 445 446 sc->sc_state &= ~UHID_OPEN; 447 448 sc->sc_async = 0; 449 450 return (0); 451 } 452 453 int 454 uhid_do_read(struct uhid_softc *sc, struct uio *uio, int flag) 455 { 456 int s; 457 int error = 0; 458 size_t length; 459 u_char buffer[UHID_CHUNK]; 460 usbd_status err; 461 462 DPRINTFN(1, ("uhidread\n")); 463 if (sc->sc_state & UHID_IMMED) { 464 DPRINTFN(1, ("uhidread immed\n")); 465 466 err = usbd_get_report(sc->sc_iface, UHID_INPUT_REPORT, 467 sc->sc_iid, buffer, sc->sc_isize); 468 if (err) 469 return (EIO); 470 return (uiomove(buffer, sc->sc_isize, uio)); 471 } 472 473 s = splusb(); 474 while (sc->sc_q.c_cc == 0) { 475 if (flag & IO_NDELAY) { 476 splx(s); 477 return (EWOULDBLOCK); 478 } 479 sc->sc_state |= UHID_ASLP; 480 DPRINTFN(5, ("uhidread: sleep on %p\n", &sc->sc_q)); 481 error = tsleep(&sc->sc_q, PZERO | PCATCH, "uhidrea", 0); 482 DPRINTFN(5, ("uhidread: woke, error=%d\n", error)); 483 if (sc->sc_dying) 484 error = EIO; 485 if (error) { 486 sc->sc_state &= ~UHID_ASLP; 487 break; 488 } 489 if (sc->sc_state & UHID_NEEDCLEAR) { 490 DPRINTFN(-1,("uhidread: clearing stall\n")); 491 sc->sc_state &= ~UHID_NEEDCLEAR; 492 usbd_clear_endpoint_stall(sc->sc_intrpipe); 493 } 494 } 495 splx(s); 496 497 /* Transfer as many chunks as possible. */ 498 while (sc->sc_q.c_cc > 0 && uio->uio_resid > 0 && !error) { 499 length = min(sc->sc_q.c_cc, uio->uio_resid); 500 if (length > sizeof(buffer)) 501 length = sizeof(buffer); 502 503 /* Remove a small chunk from the input queue. */ 504 (void) q_to_b(&sc->sc_q, buffer, length); 505 DPRINTFN(5, ("uhidread: got %lu chars\n", (u_long)length)); 506 507 /* Copy the data to the user process. */ 508 if ((error = uiomove(buffer, length, uio)) != 0) 509 break; 510 } 511 512 return (error); 513 } 514 515 int 516 uhidread(dev_t dev, struct uio *uio, int flag) 517 { 518 struct uhid_softc *sc; 519 int error; 520 521 USB_GET_SC(uhid, UHIDUNIT(dev), sc); 522 523 sc->sc_refcnt++; 524 error = uhid_do_read(sc, uio, flag); 525 if (--sc->sc_refcnt < 0) 526 usb_detach_wakeup(USBDEV(sc->sc_dev)); 527 return (error); 528 } 529 530 int 531 uhid_do_write(struct uhid_softc *sc, struct uio *uio, int flag) 532 { 533 int error; 534 int size; 535 usbd_status err; 536 537 DPRINTFN(1, ("uhidwrite\n")); 538 539 if (sc->sc_dying) 540 return (EIO); 541 542 size = sc->sc_osize; 543 error = 0; 544 if (uio->uio_resid != size) 545 return (EINVAL); 546 error = uiomove(sc->sc_obuf, size, uio); 547 if (!error) { 548 if (sc->sc_oid) 549 err = usbd_set_report(sc->sc_iface, UHID_OUTPUT_REPORT, 550 sc->sc_obuf[0], sc->sc_obuf+1, size-1); 551 else 552 err = usbd_set_report(sc->sc_iface, UHID_OUTPUT_REPORT, 553 0, sc->sc_obuf, size); 554 if (err) 555 error = EIO; 556 } 557 558 return (error); 559 } 560 561 int 562 uhidwrite(dev_t dev, struct uio *uio, int flag) 563 { 564 struct uhid_softc *sc; 565 int error; 566 567 USB_GET_SC(uhid, UHIDUNIT(dev), sc); 568 569 sc->sc_refcnt++; 570 error = uhid_do_write(sc, uio, flag); 571 if (--sc->sc_refcnt < 0) 572 usb_detach_wakeup(USBDEV(sc->sc_dev)); 573 return (error); 574 } 575 576 int 577 uhid_do_ioctl(struct uhid_softc *sc, u_long cmd, caddr_t addr, 578 int flag, struct proc *p) 579 { 580 struct usb_ctl_report_desc *rd; 581 struct usb_ctl_report *re; 582 int size, id; 583 usbd_status err; 584 585 DPRINTFN(2, ("uhidioctl: cmd=%lx\n", cmd)); 586 587 if (sc->sc_dying) 588 return (EIO); 589 590 switch (cmd) { 591 case FIONBIO: 592 /* All handled in the upper FS layer. */ 593 break; 594 595 case FIOASYNC: 596 if (*(int *)addr) { 597 if (sc->sc_async != NULL) 598 return (EBUSY); 599 sc->sc_async = p; 600 DPRINTF(("uhid_do_ioctl: FIOASYNC %p\n", p)); 601 } else 602 sc->sc_async = NULL; 603 break; 604 605 /* XXX this is not the most general solution. */ 606 case TIOCSPGRP: 607 if (sc->sc_async == NULL) 608 return (EINVAL); 609 if (*(int *)addr != sc->sc_async->p_pgid) 610 return (EPERM); 611 break; 612 613 case USB_GET_REPORT_DESC: 614 rd = (struct usb_ctl_report_desc *)addr; 615 size = min(sc->sc_repdesc_size, sizeof rd->data); 616 rd->size = size; 617 memcpy(rd->data, sc->sc_repdesc, size); 618 break; 619 620 case USB_SET_IMMED: 621 if (*(int *)addr) { 622 /* XXX should read into ibuf, but does it matter? */ 623 err = usbd_get_report(sc->sc_iface, UHID_INPUT_REPORT, 624 sc->sc_iid, sc->sc_ibuf, sc->sc_isize); 625 if (err) 626 return (EOPNOTSUPP); 627 628 sc->sc_state |= UHID_IMMED; 629 } else 630 sc->sc_state &= ~UHID_IMMED; 631 break; 632 633 case USB_GET_REPORT: 634 re = (struct usb_ctl_report *)addr; 635 switch (re->report) { 636 case UHID_INPUT_REPORT: 637 size = sc->sc_isize; 638 id = sc->sc_iid; 639 break; 640 case UHID_OUTPUT_REPORT: 641 size = sc->sc_osize; 642 id = sc->sc_oid; 643 break; 644 case UHID_FEATURE_REPORT: 645 size = sc->sc_fsize; 646 id = sc->sc_fid; 647 break; 648 default: 649 return (EINVAL); 650 } 651 err = usbd_get_report(sc->sc_iface, re->report, id, re->data, 652 size); 653 if (err) 654 return (EIO); 655 break; 656 657 case USB_SET_REPORT: 658 re = (struct usb_ctl_report *)addr; 659 switch (re->report) { 660 case UHID_INPUT_REPORT: 661 size = sc->sc_isize; 662 id = sc->sc_iid; 663 break; 664 case UHID_OUTPUT_REPORT: 665 size = sc->sc_osize; 666 id = sc->sc_oid; 667 break; 668 case UHID_FEATURE_REPORT: 669 size = sc->sc_fsize; 670 id = sc->sc_fid; 671 break; 672 default: 673 return (EINVAL); 674 } 675 err = usbd_set_report(sc->sc_iface, re->report, id, re->data, 676 size); 677 if (err) 678 return (EIO); 679 break; 680 681 default: 682 return (EINVAL); 683 } 684 return (0); 685 } 686 687 int 688 uhidioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p) 689 { 690 struct uhid_softc *sc; 691 int error; 692 693 USB_GET_SC(uhid, UHIDUNIT(dev), sc); 694 695 sc->sc_refcnt++; 696 error = uhid_do_ioctl(sc, cmd, addr, flag, p); 697 if (--sc->sc_refcnt < 0) 698 usb_detach_wakeup(USBDEV(sc->sc_dev)); 699 return (error); 700 } 701 702 int 703 uhidpoll(dev_t dev, int events, struct proc *p) 704 { 705 struct uhid_softc *sc; 706 int revents = 0; 707 int s; 708 709 USB_GET_SC(uhid, UHIDUNIT(dev), sc); 710 711 if (sc->sc_dying) 712 return (EIO); 713 714 s = splusb(); 715 if (events & (POLLOUT | POLLWRNORM)) 716 revents |= events & (POLLOUT | POLLWRNORM); 717 if (events & (POLLIN | POLLRDNORM)) { 718 if (sc->sc_q.c_cc > 0) 719 revents |= events & (POLLIN | POLLRDNORM); 720 else 721 selrecord(p, &sc->sc_rsel); 722 } 723 724 splx(s); 725 return (revents); 726 } 727 728 #if defined(__FreeBSD__) 729 DRIVER_MODULE(uhid, uhub, uhid_driver, uhid_devclass, usbd_driver_load, 0); 730 #endif 731