1 /* $OpenBSD: uhidev.c,v 1.92 2021/03/18 09:21:53 anton Exp $ */ 2 /* $NetBSD: uhidev.c,v 1.14 2003/03/11 16:44:00 augustss Exp $ */ 3 4 /* 5 * Copyright (c) 2001 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 * 21 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 23 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 24 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 /* 35 * HID spec: https://www.usb.org/sites/default/files/hid1_11.pdf 36 */ 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/kernel.h> 41 #include <sys/malloc.h> 42 #include <sys/signalvar.h> 43 #include <sys/device.h> 44 #include <sys/ioctl.h> 45 #include <sys/conf.h> 46 47 #include <machine/bus.h> 48 49 #include <dev/usb/usb.h> 50 #include <dev/usb/usbhid.h> 51 52 #include <dev/usb/usbdevs.h> 53 #include <dev/usb/usbdi.h> 54 #include <dev/usb/usbdi_util.h> 55 #include <dev/usb/usbdivar.h> 56 #include <dev/usb/usb_mem.h> 57 #include <dev/usb/usb_quirks.h> 58 59 #include <dev/usb/uhidev.h> 60 61 #ifndef SMALL_KERNEL 62 /* Replacement report descriptors for devices shipped with broken ones */ 63 #include <dev/usb/uhid_rdesc.h> 64 int uhidev_use_rdesc(struct uhidev_softc *, usb_interface_descriptor_t *, 65 int, int, void **, int *); 66 #define UISUBCLASS_XBOX360_CONTROLLER 0x5d 67 #define UIPROTO_XBOX360_GAMEPAD 0x01 68 #endif /* !SMALL_KERNEL */ 69 70 #define DEVNAME(sc) ((sc)->sc_dev.dv_xname) 71 72 #ifdef UHIDEV_DEBUG 73 #define DPRINTF(x) do { if (uhidevdebug) printf x; } while (0) 74 #define DPRINTFN(n,x) do { if (uhidevdebug>(n)) printf x; } while (0) 75 int uhidevdebug = 0; 76 #else 77 #define DPRINTF(x) 78 #define DPRINTFN(n,x) 79 #endif 80 81 struct uhidev_async_info { 82 void (*callback)(void *priv, int id, void *data, int len); 83 void *priv; 84 void *data; 85 int id; 86 }; 87 88 void uhidev_intr(struct usbd_xfer *, void *, usbd_status); 89 90 int uhidev_maxrepid(void *buf, int len); 91 int uhidevprint(void *aux, const char *pnp); 92 int uhidevsubmatch(struct device *parent, void *cf, void *aux); 93 94 int uhidev_match(struct device *, void *, void *); 95 void uhidev_attach(struct device *, struct device *, void *); 96 int uhidev_detach(struct device *, int); 97 int uhidev_activate(struct device *, int); 98 99 void uhidev_get_report_async_cb(struct usbd_xfer *, void *, usbd_status); 100 void uhidev_set_report_async_cb(struct usbd_xfer *, void *, usbd_status); 101 102 struct cfdriver uhidev_cd = { 103 NULL, "uhidev", DV_DULL 104 }; 105 106 const struct cfattach uhidev_ca = { 107 sizeof(struct uhidev_softc), uhidev_match, uhidev_attach, 108 uhidev_detach, uhidev_activate, 109 }; 110 111 int 112 uhidev_match(struct device *parent, void *match, void *aux) 113 { 114 struct usb_attach_arg *uaa = aux; 115 usb_interface_descriptor_t *id; 116 117 if (uaa->iface == NULL) 118 return (UMATCH_NONE); 119 id = usbd_get_interface_descriptor(uaa->iface); 120 if (id == NULL) 121 return (UMATCH_NONE); 122 #ifndef SMALL_KERNEL 123 if (id->bInterfaceClass == UICLASS_VENDOR && 124 id->bInterfaceSubClass == UISUBCLASS_XBOX360_CONTROLLER && 125 id->bInterfaceProtocol == UIPROTO_XBOX360_GAMEPAD) 126 return (UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO); 127 #endif /* !SMALL_KERNEL */ 128 if (id->bInterfaceClass != UICLASS_HID) 129 return (UMATCH_NONE); 130 if (usbd_get_quirks(uaa->device)->uq_flags & UQ_BAD_HID) 131 return (UMATCH_NONE); 132 133 return (UMATCH_IFACECLASS_GENERIC); 134 } 135 136 void 137 uhidev_attach(struct device *parent, struct device *self, void *aux) 138 { 139 struct uhidev_softc *sc = (struct uhidev_softc *)self; 140 struct usb_attach_arg *uaa = aux; 141 usb_interface_descriptor_t *id; 142 usb_endpoint_descriptor_t *ed; 143 struct uhidev_attach_arg uha; 144 int size, nrepid, repid, repsz; 145 int i, repsizes[256]; 146 void *desc = NULL; 147 struct device *dev; 148 149 sc->sc_udev = uaa->device; 150 sc->sc_iface = uaa->iface; 151 sc->sc_ifaceno = uaa->ifaceno; 152 id = usbd_get_interface_descriptor(sc->sc_iface); 153 154 sc->sc_iep_addr = sc->sc_oep_addr = -1; 155 for (i = 0; i < id->bNumEndpoints; i++) { 156 ed = usbd_interface2endpoint_descriptor(sc->sc_iface, i); 157 if (ed == NULL) { 158 printf("%s: could not read endpoint descriptor\n", 159 DEVNAME(sc)); 160 return; 161 } 162 163 DPRINTFN(10,("uhidev_attach: bLength=%d bDescriptorType=%d " 164 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d" 165 " bInterval=%d\n", 166 ed->bLength, ed->bDescriptorType, 167 ed->bEndpointAddress & UE_ADDR, 168 UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out", 169 UE_GET_XFERTYPE(ed->bmAttributes), 170 UGETW(ed->wMaxPacketSize), ed->bInterval)); 171 172 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 173 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 174 sc->sc_iep_addr = ed->bEndpointAddress; 175 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 176 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 177 sc->sc_oep_addr = ed->bEndpointAddress; 178 } else { 179 printf("%s: unexpected endpoint\n", DEVNAME(sc)); 180 return; 181 } 182 } 183 184 /* 185 * Check that we found an input interrupt endpoint. 186 * The output interrupt endpoint is optional 187 */ 188 if (sc->sc_iep_addr == -1) { 189 printf("%s: no input interrupt endpoint\n", DEVNAME(sc)); 190 return; 191 } 192 193 #ifndef SMALL_KERNEL 194 if (uhidev_use_rdesc(sc, id, uaa->vendor, uaa->product, &desc, &size)) 195 return; 196 #endif /* !SMALL_KERNEL */ 197 198 if (desc == NULL) { 199 struct usb_hid_descriptor *hid; 200 201 hid = usbd_get_hid_descriptor(sc->sc_udev, id); 202 if (hid == NULL) { 203 printf("%s: no HID descriptor\n", DEVNAME(sc)); 204 return; 205 } 206 size = UGETW(hid->descrs[0].wDescriptorLength); 207 desc = malloc(size, M_USBDEV, M_NOWAIT); 208 if (desc == NULL) { 209 printf("%s: no memory\n", DEVNAME(sc)); 210 return; 211 } 212 if (usbd_get_report_descriptor(sc->sc_udev, sc->sc_ifaceno, 213 desc, size)) { 214 printf("%s: no report descriptor\n", DEVNAME(sc)); 215 free(desc, M_USBDEV, size); 216 return; 217 } 218 } 219 220 sc->sc_repdesc = desc; 221 sc->sc_repdesc_size = size; 222 223 nrepid = uhidev_maxrepid(desc, size); 224 if (nrepid < 0) 225 return; 226 printf("%s: iclass %d/%d", DEVNAME(sc), id->bInterfaceClass, 227 id->bInterfaceSubClass); 228 if (nrepid > 0) 229 printf(", %d report id%s", nrepid, nrepid > 1 ? "s" : ""); 230 printf("\n"); 231 nrepid++; 232 sc->sc_subdevs = mallocarray(nrepid, sizeof(struct uhidev *), 233 M_USBDEV, M_NOWAIT | M_ZERO); 234 if (sc->sc_subdevs == NULL) { 235 printf("%s: no memory\n", DEVNAME(sc)); 236 return; 237 } 238 sc->sc_nrepid = nrepid; 239 sc->sc_isize = 0; 240 241 for (repid = 0; repid < nrepid; repid++) { 242 repsz = hid_report_size(desc, size, hid_input, repid); 243 DPRINTF(("uhidev_match: repid=%d, repsz=%d\n", repid, repsz)); 244 repsizes[repid] = repsz; 245 if (repsz > sc->sc_isize) 246 sc->sc_isize = repsz; 247 } 248 sc->sc_isize += (nrepid != 1); /* one byte for the report ID */ 249 DPRINTF(("uhidev_attach: isize=%d\n", sc->sc_isize)); 250 251 uha.uaa = uaa; 252 uha.parent = sc; 253 uha.reportid = UHIDEV_CLAIM_MULTIPLE_REPORTID; 254 uha.nreports = nrepid; 255 uha.claimed = malloc(nrepid, M_TEMP, M_WAITOK|M_ZERO); 256 257 /* Look for a driver claiming multiple report IDs first. */ 258 dev = config_found_sm(self, &uha, NULL, uhidevsubmatch); 259 if (dev != NULL) { 260 for (repid = 0; repid < nrepid; repid++) { 261 /* 262 * Could already be assigned by uhidev_set_report_dev(). 263 */ 264 if (sc->sc_subdevs[repid] != NULL) 265 continue; 266 267 if (uha.claimed[repid]) 268 sc->sc_subdevs[repid] = (struct uhidev *)dev; 269 } 270 } 271 272 free(uha.claimed, M_TEMP, nrepid); 273 uha.claimed = NULL; 274 275 for (repid = 0; repid < nrepid; repid++) { 276 DPRINTF(("%s: try repid=%d\n", __func__, repid)); 277 if (hid_report_size(desc, size, hid_input, repid) == 0 && 278 hid_report_size(desc, size, hid_output, repid) == 0 && 279 hid_report_size(desc, size, hid_feature, repid) == 0) 280 continue; 281 282 /* Could already be assigned by uhidev_set_report_dev(). */ 283 if (sc->sc_subdevs[repid] != NULL) 284 continue; 285 286 uha.reportid = repid; 287 dev = config_found_sm(self, &uha, uhidevprint, uhidevsubmatch); 288 sc->sc_subdevs[repid] = (struct uhidev *)dev; 289 } 290 } 291 292 #ifndef SMALL_KERNEL 293 int 294 uhidev_use_rdesc(struct uhidev_softc *sc, usb_interface_descriptor_t *id, 295 int vendor, int product, void **descp, int *sizep) 296 { 297 static uByte reportbuf[] = {2, 2}; 298 const void *descptr = NULL; 299 void *desc; 300 int size; 301 302 if (vendor == USB_VENDOR_WACOM) { 303 /* The report descriptor for the Wacom Graphire is broken. */ 304 switch (product) { 305 case USB_PRODUCT_WACOM_GRAPHIRE: 306 size = sizeof(uhid_graphire_report_descr); 307 descptr = uhid_graphire_report_descr; 308 break; 309 case USB_PRODUCT_WACOM_GRAPHIRE3_4X5: 310 case USB_PRODUCT_WACOM_GRAPHIRE4_4X5: 311 uhidev_set_report(sc, UHID_FEATURE_REPORT, 312 2, &reportbuf, sizeof(reportbuf)); 313 size = sizeof(uhid_graphire3_4x5_report_descr); 314 descptr = uhid_graphire3_4x5_report_descr; 315 break; 316 default: 317 break; 318 } 319 } else if ((id->bInterfaceClass == UICLASS_VENDOR && 320 id->bInterfaceSubClass == UISUBCLASS_XBOX360_CONTROLLER && 321 id->bInterfaceProtocol == UIPROTO_XBOX360_GAMEPAD)) { 322 /* The Xbox 360 gamepad has no report descriptor. */ 323 size = sizeof(uhid_xb360gp_report_descr); 324 descptr = uhid_xb360gp_report_descr; 325 } 326 327 if (descptr) { 328 desc = malloc(size, M_USBDEV, M_NOWAIT); 329 if (desc == NULL) 330 return (ENOMEM); 331 332 memcpy(desc, descptr, size); 333 334 *descp = desc; 335 *sizep = size; 336 } 337 338 return (0); 339 } 340 #endif /* !SMALL_KERNEL */ 341 342 int 343 uhidev_maxrepid(void *buf, int len) 344 { 345 struct hid_data *d; 346 struct hid_item h; 347 int maxid; 348 349 maxid = -1; 350 h.report_ID = 0; 351 for (d = hid_start_parse(buf, len, hid_none); hid_get_item(d, &h); ) 352 if (h.report_ID > maxid) 353 maxid = h.report_ID; 354 hid_end_parse(d); 355 return (maxid); 356 } 357 358 int 359 uhidevprint(void *aux, const char *pnp) 360 { 361 struct uhidev_attach_arg *uha = aux; 362 363 if (pnp) 364 printf("uhid at %s", pnp); 365 if (uha->reportid != 0 && uha->reportid != UHIDEV_CLAIM_MULTIPLE_REPORTID) 366 printf(" reportid %d", uha->reportid); 367 return (UNCONF); 368 } 369 370 int uhidevsubmatch(struct device *parent, void *match, void *aux) 371 { 372 struct uhidev_attach_arg *uha = aux; 373 struct cfdata *cf = match; 374 375 if (cf->uhidevcf_reportid != UHIDEV_UNK_REPORTID && 376 cf->uhidevcf_reportid != uha->reportid) 377 return (0); 378 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 379 } 380 381 int 382 uhidev_activate(struct device *self, int act) 383 { 384 struct uhidev_softc *sc = (struct uhidev_softc *)self; 385 int i, j, already, rv = 0, r; 386 387 switch (act) { 388 case DVACT_DEACTIVATE: 389 for (i = 0; i < sc->sc_nrepid; i++) { 390 if (sc->sc_subdevs[i] == NULL) 391 continue; 392 393 /* 394 * Only notify devices attached to multiple report ids 395 * once. 396 */ 397 for (already = 0, j = 0; j < i; j++) { 398 if (sc->sc_subdevs[i] == sc->sc_subdevs[j]) { 399 already = 1; 400 break; 401 } 402 } 403 404 if (!already) { 405 r = config_deactivate( 406 &sc->sc_subdevs[i]->sc_dev); 407 if (r && r != EOPNOTSUPP) 408 rv = r; 409 } 410 } 411 usbd_deactivate(sc->sc_udev); 412 break; 413 } 414 return (rv); 415 } 416 417 int 418 uhidev_detach(struct device *self, int flags) 419 { 420 struct uhidev_softc *sc = (struct uhidev_softc *)self; 421 int i, j, rv = 0; 422 423 DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags)); 424 425 if (sc->sc_opipe != NULL) { 426 usbd_close_pipe(sc->sc_opipe); 427 sc->sc_opipe = NULL; 428 } 429 430 if (sc->sc_ipipe != NULL) { 431 usbd_close_pipe(sc->sc_ipipe); 432 sc->sc_ipipe = NULL; 433 } 434 435 if (sc->sc_repdesc != NULL) 436 free(sc->sc_repdesc, M_USBDEV, sc->sc_repdesc_size); 437 438 for (i = 0; i < sc->sc_nrepid; i++) { 439 if (sc->sc_subdevs[i] == NULL) 440 continue; 441 442 rv |= config_detach(&sc->sc_subdevs[i]->sc_dev, flags); 443 444 /* 445 * Nullify without detaching any other instances of this device 446 * found on other report ids. 447 */ 448 for (j = i + 1; j < sc->sc_nrepid; j++) { 449 if (sc->sc_subdevs[i] == sc->sc_subdevs[j]) 450 sc->sc_subdevs[j] = NULL; 451 } 452 453 sc->sc_subdevs[i] = NULL; 454 } 455 456 return (rv); 457 } 458 459 void 460 uhidev_intr(struct usbd_xfer *xfer, void *addr, usbd_status status) 461 { 462 struct uhidev_softc *sc = addr; 463 struct uhidev *scd; 464 u_char *p; 465 u_int rep; 466 u_int32_t cc; 467 468 if (usbd_is_dying(sc->sc_udev)) 469 return; 470 471 usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL); 472 473 #ifdef UHIDEV_DEBUG 474 if (uhidevdebug > 5) { 475 u_int32_t i; 476 477 DPRINTF(("uhidev_intr: status=%d cc=%d\n", status, cc)); 478 DPRINTF(("uhidev_intr: data =")); 479 for (i = 0; i < cc; i++) 480 DPRINTF((" %02x", sc->sc_ibuf[i])); 481 DPRINTF(("\n")); 482 } 483 #endif 484 485 if (status == USBD_CANCELLED || status == USBD_IOERROR) 486 return; 487 488 if (status != USBD_NORMAL_COMPLETION) { 489 DPRINTF(("%s: interrupt status=%d\n", DEVNAME(sc), status)); 490 usbd_clear_endpoint_stall_async(sc->sc_ipipe); 491 return; 492 } 493 494 p = sc->sc_ibuf; 495 if (sc->sc_nrepid != 1) 496 rep = *p++, cc--; 497 else 498 rep = 0; 499 if (rep >= sc->sc_nrepid) { 500 printf("uhidev_intr: bad repid %d\n", rep); 501 return; 502 } 503 scd = sc->sc_subdevs[rep]; 504 DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n", 505 rep, scd, scd ? scd->sc_state : 0)); 506 if (scd == NULL || !(scd->sc_state & UHIDEV_OPEN)) 507 return; 508 509 scd->sc_intr(scd, p, cc); 510 } 511 512 void 513 uhidev_get_report_desc(struct uhidev_softc *sc, void **desc, int *size) 514 { 515 *desc = sc->sc_repdesc; 516 *size = sc->sc_repdesc_size; 517 } 518 519 int 520 uhidev_open(struct uhidev *scd) 521 { 522 struct uhidev_softc *sc = scd->sc_parent; 523 usbd_status err; 524 int error; 525 526 DPRINTF(("uhidev_open: open pipe, state=%d refcnt=%d\n", 527 scd->sc_state, sc->sc_refcnt)); 528 529 if (scd->sc_state & UHIDEV_OPEN) 530 return (EBUSY); 531 scd->sc_state |= UHIDEV_OPEN; 532 if (sc->sc_refcnt++) 533 return (0); 534 535 if (sc->sc_isize == 0) 536 return (0); 537 538 sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 539 540 /* Set up input interrupt pipe. */ 541 DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize, 542 sc->sc_iep_addr)); 543 544 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_iep_addr, 545 USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_ibuf, 546 sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL); 547 if (err != USBD_NORMAL_COMPLETION) { 548 DPRINTF(("uhidopen: usbd_open_pipe_intr failed, " 549 "error=%d\n", err)); 550 error = EIO; 551 goto out1; 552 } 553 554 DPRINTF(("uhidev_open: sc->sc_ipipe=%p\n", sc->sc_ipipe)); 555 556 sc->sc_ixfer = usbd_alloc_xfer(sc->sc_udev); 557 if (sc->sc_ixfer == NULL) { 558 DPRINTF(("uhidev_open: couldn't allocate an xfer\n")); 559 error = ENOMEM; 560 goto out1; // xxxx 561 } 562 563 /* 564 * Set up output interrupt pipe if an output interrupt endpoint 565 * exists. 566 */ 567 if (sc->sc_oep_addr != -1) { 568 DPRINTF(("uhidev_open: oep=0x%02x\n", sc->sc_oep_addr)); 569 570 err = usbd_open_pipe(sc->sc_iface, sc->sc_oep_addr, 571 0, &sc->sc_opipe); 572 if (err != USBD_NORMAL_COMPLETION) { 573 DPRINTF(("uhidev_open: usbd_open_pipe failed, " 574 "error=%d\n", err)); 575 error = EIO; 576 goto out2; 577 } 578 579 DPRINTF(("uhidev_open: sc->sc_opipe=%p\n", sc->sc_opipe)); 580 581 sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev); 582 if (sc->sc_oxfer == NULL) { 583 DPRINTF(("uhidev_open: couldn't allocate an xfer\n")); 584 error = ENOMEM; 585 goto out3; 586 } 587 588 sc->sc_owxfer = usbd_alloc_xfer(sc->sc_udev); 589 if (sc->sc_owxfer == NULL) { 590 DPRINTF(("uhidev_open: couldn't allocate owxfer\n")); 591 error = ENOMEM; 592 goto out3; 593 } 594 } 595 596 return (0); 597 598 out3: 599 /* Abort output pipe */ 600 usbd_close_pipe(sc->sc_opipe); 601 out2: 602 /* Abort input pipe */ 603 usbd_close_pipe(sc->sc_ipipe); 604 out1: 605 DPRINTF(("uhidev_open: failed in someway")); 606 free(sc->sc_ibuf, M_USBDEV, sc->sc_isize); 607 scd->sc_state &= ~UHIDEV_OPEN; 608 sc->sc_refcnt = 0; 609 sc->sc_ipipe = NULL; 610 sc->sc_opipe = NULL; 611 if (sc->sc_oxfer != NULL) { 612 usbd_free_xfer(sc->sc_oxfer); 613 sc->sc_oxfer = NULL; 614 } 615 if (sc->sc_owxfer != NULL) { 616 usbd_free_xfer(sc->sc_owxfer); 617 sc->sc_owxfer = NULL; 618 } 619 if (sc->sc_ixfer != NULL) { 620 usbd_free_xfer(sc->sc_ixfer); 621 sc->sc_ixfer = NULL; 622 } 623 return (error); 624 } 625 626 void 627 uhidev_close(struct uhidev *scd) 628 { 629 struct uhidev_softc *sc = scd->sc_parent; 630 631 if (!(scd->sc_state & UHIDEV_OPEN)) 632 return; 633 scd->sc_state &= ~UHIDEV_OPEN; 634 if (--sc->sc_refcnt) 635 return; 636 DPRINTF(("uhidev_close: close pipe\n")); 637 638 /* Disable interrupts. */ 639 if (sc->sc_opipe != NULL) { 640 usbd_close_pipe(sc->sc_opipe); 641 sc->sc_opipe = NULL; 642 } 643 644 if (sc->sc_ipipe != NULL) { 645 usbd_close_pipe(sc->sc_ipipe); 646 sc->sc_ipipe = NULL; 647 } 648 649 if (sc->sc_oxfer != NULL) { 650 usbd_free_xfer(sc->sc_oxfer); 651 sc->sc_oxfer = NULL; 652 } 653 654 if (sc->sc_owxfer != NULL) { 655 usbd_free_xfer(sc->sc_owxfer); 656 sc->sc_owxfer = NULL; 657 } 658 659 if (sc->sc_ixfer != NULL) { 660 usbd_free_xfer(sc->sc_ixfer); 661 sc->sc_ixfer = NULL; 662 } 663 664 if (sc->sc_ibuf != NULL) { 665 free(sc->sc_ibuf, M_USBDEV, sc->sc_isize); 666 sc->sc_ibuf = NULL; 667 } 668 } 669 670 int 671 uhidev_report_type_conv(int hid_type_id) 672 { 673 switch (hid_type_id) { 674 case hid_input: 675 return UHID_INPUT_REPORT; 676 case hid_output: 677 return UHID_OUTPUT_REPORT; 678 case hid_feature: 679 return UHID_FEATURE_REPORT; 680 default: 681 return -1; 682 } 683 } 684 685 int 686 uhidev_set_report(struct uhidev_softc *sc, int type, int id, void *data, 687 int len) 688 { 689 usb_device_request_t req; 690 char *buf = data; 691 int actlen = len; 692 693 /* Prepend the reportID. */ 694 if (id > 0) { 695 len++; 696 buf = malloc(len, M_TEMP, M_WAITOK); 697 buf[0] = id; 698 memcpy(buf + 1, data, len - 1); 699 } 700 701 if (sc->sc_opipe != NULL) { 702 usbd_setup_xfer(sc->sc_owxfer, sc->sc_opipe, 0, buf, len, 703 USBD_SYNCHRONOUS | USBD_CATCH, 0, NULL); 704 if (usbd_transfer(sc->sc_owxfer)) { 705 usbd_clear_endpoint_stall(sc->sc_opipe); 706 actlen = -1; 707 } 708 } else { 709 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 710 req.bRequest = UR_SET_REPORT; 711 USETW2(req.wValue, type, id); 712 USETW(req.wIndex, sc->sc_ifaceno); 713 USETW(req.wLength, len); 714 715 if (usbd_do_request(sc->sc_udev, &req, buf)) 716 actlen = -1; 717 } 718 719 if (id > 0) 720 free(buf, M_TEMP, len); 721 722 return (actlen); 723 } 724 725 void 726 uhidev_set_report_async_cb(struct usbd_xfer *xfer, void *priv, usbd_status err) 727 { 728 struct uhidev_softc *sc = priv; 729 730 if (err == USBD_STALLED) 731 usbd_clear_endpoint_stall_async(sc->sc_opipe); 732 usbd_free_xfer(xfer); 733 } 734 735 int 736 uhidev_set_report_async(struct uhidev_softc *sc, int type, int id, void *data, 737 int len) 738 { 739 struct usbd_xfer *xfer; 740 usb_device_request_t req; 741 int actlen = len; 742 char *buf; 743 744 xfer = usbd_alloc_xfer(sc->sc_udev); 745 if (xfer == NULL) 746 return (-1); 747 748 if (id > 0) 749 len++; 750 751 buf = usbd_alloc_buffer(xfer, len); 752 if (buf == NULL) { 753 usbd_free_xfer(xfer); 754 return (-1); 755 } 756 757 /* Prepend the reportID. */ 758 if (id > 0) { 759 buf[0] = id; 760 memcpy(buf + 1, data, len - 1); 761 } else { 762 memcpy(buf, data, len); 763 } 764 765 if (sc->sc_opipe != NULL) { 766 usbd_setup_xfer(xfer, sc->sc_opipe, sc, buf, len, 767 USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 768 uhidev_set_report_async_cb); 769 if (usbd_transfer(xfer)) { 770 usbd_clear_endpoint_stall_async(sc->sc_opipe); 771 actlen = -1; 772 } 773 } else { 774 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 775 req.bRequest = UR_SET_REPORT; 776 USETW2(req.wValue, type, id); 777 USETW(req.wIndex, sc->sc_ifaceno); 778 USETW(req.wLength, len); 779 if (usbd_request_async(xfer, &req, NULL, NULL)) 780 actlen = -1; 781 } 782 783 return (actlen); 784 } 785 786 int 787 uhidev_get_report(struct uhidev_softc *sc, int type, int id, void *data, 788 int len) 789 { 790 usb_device_request_t req; 791 char *buf = data; 792 usbd_status err; 793 int actlen; 794 795 if (id > 0) { 796 len++; 797 buf = malloc(len, M_TEMP, M_WAITOK|M_ZERO); 798 } 799 800 req.bmRequestType = UT_READ_CLASS_INTERFACE; 801 req.bRequest = UR_GET_REPORT; 802 USETW2(req.wValue, type, id); 803 USETW(req.wIndex, sc->sc_ifaceno); 804 USETW(req.wLength, len); 805 806 err = usbd_do_request_flags(sc->sc_udev, &req, buf, 0, &actlen, 807 USBD_DEFAULT_TIMEOUT); 808 if (err != USBD_NORMAL_COMPLETION && err != USBD_SHORT_XFER) 809 actlen = -1; 810 811 /* Skip the reportID. */ 812 if (id > 0) { 813 memcpy(data, buf + 1, len - 1); 814 free(buf, M_TEMP, len); 815 } 816 817 return (actlen); 818 } 819 820 void 821 uhidev_get_report_async_cb(struct usbd_xfer *xfer, void *priv, usbd_status err) 822 { 823 struct uhidev_async_info *info = priv; 824 char *buf; 825 int len = -1; 826 827 if (!usbd_is_dying(xfer->pipe->device)) { 828 if (err == USBD_NORMAL_COMPLETION || err == USBD_SHORT_XFER) { 829 len = xfer->actlen; 830 buf = KERNADDR(&xfer->dmabuf, 0); 831 if (info->id > 0) { 832 len--; 833 memcpy(info->data, buf + 1, len); 834 } else { 835 memcpy(info->data, buf, len); 836 } 837 } 838 info->callback(info->priv, info->id, info->data, len); 839 } 840 free(info, M_TEMP, sizeof(*info)); 841 usbd_free_xfer(xfer); 842 } 843 844 int 845 uhidev_get_report_async(struct uhidev_softc *sc, int type, int id, void *data, 846 int len, void *priv, void (*callback)(void *, int, void *, int)) 847 { 848 struct usbd_xfer *xfer; 849 usb_device_request_t req; 850 struct uhidev_async_info *info; 851 int actlen = len; 852 char *buf; 853 854 xfer = usbd_alloc_xfer(sc->sc_udev); 855 if (xfer == NULL) 856 return (-1); 857 858 if (id > 0) 859 len++; 860 861 buf = usbd_alloc_buffer(xfer, len); 862 if (buf == NULL) { 863 usbd_free_xfer(xfer); 864 return (-1); 865 } 866 867 info = malloc(sizeof(*info), M_TEMP, M_NOWAIT); 868 if (info == NULL) { 869 usbd_free_xfer(xfer); 870 return (-1); 871 } 872 873 info->callback = callback; 874 info->priv = priv; 875 info->data = data; 876 info->id = id; 877 878 req.bmRequestType = UT_READ_CLASS_INTERFACE; 879 req.bRequest = UR_GET_REPORT; 880 USETW2(req.wValue, type, id); 881 USETW(req.wIndex, sc->sc_ifaceno); 882 USETW(req.wLength, len); 883 884 if (usbd_request_async(xfer, &req, info, uhidev_get_report_async_cb)) { 885 free(info, M_TEMP, sizeof(*info)); 886 actlen = -1; 887 } 888 889 return (actlen); 890 } 891 892 usbd_status 893 uhidev_write(struct uhidev_softc *sc, void *data, int len) 894 { 895 usbd_status error; 896 897 DPRINTF(("uhidev_write: data=%p, len=%d\n", data, len)); 898 899 if (sc->sc_opipe == NULL) 900 return USBD_INVAL; 901 902 #ifdef UHIDEV_DEBUG 903 if (uhidevdebug > 50) { 904 905 u_int32_t i; 906 u_int8_t *d = data; 907 908 DPRINTF(("uhidev_write: data =")); 909 for (i = 0; i < len; i++) 910 DPRINTF((" %02x", d[i])); 911 DPRINTF(("\n")); 912 } 913 #endif 914 usbd_setup_xfer(sc->sc_owxfer, sc->sc_opipe, 0, data, len, 915 USBD_SYNCHRONOUS | USBD_CATCH, 0, NULL); 916 error = usbd_transfer(sc->sc_owxfer); 917 if (error) 918 usbd_clear_endpoint_stall(sc->sc_opipe); 919 920 return (error); 921 } 922 923 int 924 uhidev_ioctl(struct uhidev *sc, u_long cmd, caddr_t addr, int flag, 925 struct proc *p) 926 { 927 struct usb_ctl_report_desc *rd; 928 struct usb_ctl_report *re; 929 int size; 930 void *desc; 931 932 switch (cmd) { 933 case USB_GET_REPORT_DESC: 934 uhidev_get_report_desc(sc->sc_parent, &desc, &size); 935 rd = (struct usb_ctl_report_desc *)addr; 936 size = min(size, sizeof rd->ucrd_data); 937 rd->ucrd_size = size; 938 memcpy(rd->ucrd_data, desc, size); 939 break; 940 case USB_GET_REPORT: 941 re = (struct usb_ctl_report *)addr; 942 switch (re->ucr_report) { 943 case UHID_INPUT_REPORT: 944 size = sc->sc_isize; 945 break; 946 case UHID_OUTPUT_REPORT: 947 size = sc->sc_osize; 948 break; 949 case UHID_FEATURE_REPORT: 950 size = sc->sc_fsize; 951 break; 952 default: 953 return EINVAL; 954 } 955 if (uhidev_get_report(sc->sc_parent, re->ucr_report, 956 sc->sc_report_id, re->ucr_data, size) != size) 957 return EIO; 958 break; 959 case USB_SET_REPORT: 960 re = (struct usb_ctl_report *)addr; 961 switch (re->ucr_report) { 962 case UHID_INPUT_REPORT: 963 size = sc->sc_isize; 964 break; 965 case UHID_OUTPUT_REPORT: 966 size = sc->sc_osize; 967 break; 968 case UHID_FEATURE_REPORT: 969 size = sc->sc_fsize; 970 break; 971 default: 972 return EINVAL; 973 } 974 if (uhidev_set_report(sc->sc_parent, re->ucr_report, 975 sc->sc_report_id, re->ucr_data, size) != size) 976 return EIO; 977 break; 978 case USB_GET_REPORT_ID: 979 *(int *)addr = sc->sc_report_id; 980 break; 981 default: 982 return -1; 983 } 984 return 0; 985 } 986 987 int 988 uhidev_set_report_dev(struct uhidev_softc *sc, struct uhidev *dev, int repid) 989 { 990 if ((dev->sc_state & UHIDEV_OPEN) == 0) 991 return ENODEV; 992 if (repid >= sc->sc_nrepid) 993 return EINVAL; 994 995 sc->sc_subdevs[repid] = dev; 996 return 0; 997 } 998