1 /* $OpenBSD: uhidev.c,v 1.95 2021/09/12 06:58:08 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; 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 if (repsz > sc->sc_isize) 245 sc->sc_isize = repsz; 246 } 247 sc->sc_isize += (nrepid != 1); /* one byte for the report ID */ 248 DPRINTF(("uhidev_attach: isize=%d\n", sc->sc_isize)); 249 250 uha.uaa = uaa; 251 uha.parent = sc; 252 uha.reportid = UHIDEV_CLAIM_MULTIPLE_REPORTID; 253 uha.nreports = nrepid; 254 uha.claimed = malloc(nrepid, M_TEMP, M_WAITOK|M_ZERO); 255 256 /* Look for a driver claiming multiple report IDs first. */ 257 dev = config_found_sm(self, &uha, NULL, uhidevsubmatch); 258 if (dev != NULL) { 259 for (repid = 0; repid < nrepid; repid++) { 260 /* 261 * Could already be assigned by uhidev_set_report_dev(). 262 */ 263 if (sc->sc_subdevs[repid] != NULL) 264 continue; 265 266 if (uha.claimed[repid]) 267 sc->sc_subdevs[repid] = (struct uhidev *)dev; 268 } 269 } 270 271 free(uha.claimed, M_TEMP, nrepid); 272 uha.claimed = NULL; 273 274 for (repid = 0; repid < nrepid; repid++) { 275 DPRINTF(("%s: try repid=%d\n", __func__, repid)); 276 if (hid_report_size(desc, size, hid_input, repid) == 0 && 277 hid_report_size(desc, size, hid_output, repid) == 0 && 278 hid_report_size(desc, size, hid_feature, repid) == 0) 279 continue; 280 281 /* Could already be assigned by uhidev_set_report_dev(). */ 282 if (sc->sc_subdevs[repid] != NULL) 283 continue; 284 285 uha.reportid = repid; 286 dev = config_found_sm(self, &uha, uhidevprint, uhidevsubmatch); 287 sc->sc_subdevs[repid] = (struct uhidev *)dev; 288 } 289 } 290 291 #ifndef SMALL_KERNEL 292 int 293 uhidev_use_rdesc(struct uhidev_softc *sc, usb_interface_descriptor_t *id, 294 int vendor, int product, void **descp, int *sizep) 295 { 296 static uByte reportbuf[] = {2, 2}; 297 const void *descptr = NULL; 298 void *desc; 299 int size; 300 301 if (vendor == USB_VENDOR_WACOM) { 302 /* The report descriptor for the Wacom Graphire is broken. */ 303 switch (product) { 304 case USB_PRODUCT_WACOM_GRAPHIRE: 305 size = sizeof(uhid_graphire_report_descr); 306 descptr = uhid_graphire_report_descr; 307 break; 308 case USB_PRODUCT_WACOM_GRAPHIRE3_4X5: 309 case USB_PRODUCT_WACOM_GRAPHIRE4_4X5: 310 uhidev_set_report(sc, UHID_FEATURE_REPORT, 311 2, &reportbuf, sizeof(reportbuf)); 312 size = sizeof(uhid_graphire3_4x5_report_descr); 313 descptr = uhid_graphire3_4x5_report_descr; 314 break; 315 default: 316 break; 317 } 318 } else if ((id->bInterfaceClass == UICLASS_VENDOR && 319 id->bInterfaceSubClass == UISUBCLASS_XBOX360_CONTROLLER && 320 id->bInterfaceProtocol == UIPROTO_XBOX360_GAMEPAD)) { 321 /* The Xbox 360 gamepad has no report descriptor. */ 322 size = sizeof(uhid_xb360gp_report_descr); 323 descptr = uhid_xb360gp_report_descr; 324 } 325 326 if (descptr) { 327 desc = malloc(size, M_USBDEV, M_NOWAIT); 328 if (desc == NULL) 329 return (ENOMEM); 330 331 memcpy(desc, descptr, size); 332 333 *descp = desc; 334 *sizep = size; 335 } 336 337 return (0); 338 } 339 #endif /* !SMALL_KERNEL */ 340 341 int 342 uhidev_maxrepid(void *buf, int len) 343 { 344 struct hid_data *d; 345 struct hid_item h; 346 int maxid; 347 348 maxid = -1; 349 h.report_ID = 0; 350 for (d = hid_start_parse(buf, len, hid_none); hid_get_item(d, &h); ) 351 if (h.report_ID > maxid) 352 maxid = h.report_ID; 353 hid_end_parse(d); 354 return (maxid); 355 } 356 357 int 358 uhidevprint(void *aux, const char *pnp) 359 { 360 struct uhidev_attach_arg *uha = aux; 361 362 if (pnp) 363 printf("uhid at %s", pnp); 364 if (uha->reportid != 0 && uha->reportid != UHIDEV_CLAIM_MULTIPLE_REPORTID) 365 printf(" reportid %d", uha->reportid); 366 return (UNCONF); 367 } 368 369 int uhidevsubmatch(struct device *parent, void *match, void *aux) 370 { 371 struct uhidev_attach_arg *uha = aux; 372 struct cfdata *cf = match; 373 374 if (cf->uhidevcf_reportid != UHIDEV_UNK_REPORTID && 375 cf->uhidevcf_reportid != uha->reportid) 376 return (0); 377 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 378 } 379 380 int 381 uhidev_activate(struct device *self, int act) 382 { 383 struct uhidev_softc *sc = (struct uhidev_softc *)self; 384 int i, j, already, rv = 0, r; 385 386 switch (act) { 387 case DVACT_DEACTIVATE: 388 for (i = 0; i < sc->sc_nrepid; i++) { 389 if (sc->sc_subdevs[i] == NULL) 390 continue; 391 392 /* 393 * Only notify devices attached to multiple report ids 394 * once. 395 */ 396 for (already = 0, j = 0; j < i; j++) { 397 if (sc->sc_subdevs[i] == sc->sc_subdevs[j]) { 398 already = 1; 399 break; 400 } 401 } 402 403 if (!already) { 404 r = config_deactivate( 405 &sc->sc_subdevs[i]->sc_dev); 406 if (r && r != EOPNOTSUPP) 407 rv = r; 408 } 409 } 410 usbd_deactivate(sc->sc_udev); 411 break; 412 } 413 return (rv); 414 } 415 416 int 417 uhidev_detach(struct device *self, int flags) 418 { 419 struct uhidev_softc *sc = (struct uhidev_softc *)self; 420 int i, j, rv = 0; 421 422 DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags)); 423 424 if (sc->sc_opipe != NULL) { 425 usbd_close_pipe(sc->sc_opipe); 426 sc->sc_opipe = NULL; 427 } 428 429 if (sc->sc_ipipe != NULL) { 430 usbd_close_pipe(sc->sc_ipipe); 431 sc->sc_ipipe = NULL; 432 } 433 434 if (sc->sc_repdesc != NULL) 435 free(sc->sc_repdesc, M_USBDEV, sc->sc_repdesc_size); 436 437 for (i = 0; i < sc->sc_nrepid; i++) { 438 if (sc->sc_subdevs[i] == NULL) 439 continue; 440 441 rv |= config_detach(&sc->sc_subdevs[i]->sc_dev, flags); 442 443 /* 444 * Nullify without detaching any other instances of this device 445 * found on other report ids. 446 */ 447 for (j = i + 1; j < sc->sc_nrepid; j++) { 448 if (sc->sc_subdevs[i] == sc->sc_subdevs[j]) 449 sc->sc_subdevs[j] = NULL; 450 } 451 452 sc->sc_subdevs[i] = NULL; 453 } 454 455 return (rv); 456 } 457 458 void 459 uhidev_intr(struct usbd_xfer *xfer, void *addr, usbd_status status) 460 { 461 struct uhidev_softc *sc = addr; 462 struct uhidev *scd; 463 u_char *p; 464 u_int rep; 465 u_int32_t cc; 466 467 if (usbd_is_dying(sc->sc_udev)) 468 return; 469 470 usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL); 471 472 #ifdef UHIDEV_DEBUG 473 if (uhidevdebug > 5) { 474 u_int32_t i; 475 476 DPRINTF(("uhidev_intr: status=%d cc=%d\n", status, cc)); 477 DPRINTF(("uhidev_intr: data =")); 478 for (i = 0; i < cc; i++) 479 DPRINTF((" %02x", sc->sc_ibuf[i])); 480 DPRINTF(("\n")); 481 } 482 #endif 483 484 if (status == USBD_CANCELLED || status == USBD_IOERROR) 485 return; 486 487 if (status != USBD_NORMAL_COMPLETION) { 488 DPRINTF(("%s: interrupt status=%d\n", DEVNAME(sc), status)); 489 usbd_clear_endpoint_stall_async(sc->sc_ipipe); 490 return; 491 } 492 493 p = sc->sc_ibuf; 494 if (sc->sc_nrepid != 1) 495 rep = *p++, cc--; 496 else 497 rep = 0; 498 if (rep >= sc->sc_nrepid) { 499 printf("uhidev_intr: bad repid %d\n", rep); 500 return; 501 } 502 scd = sc->sc_subdevs[rep]; 503 DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n", 504 rep, scd, scd ? scd->sc_state : 0)); 505 if (scd == NULL || !(scd->sc_state & UHIDEV_OPEN)) 506 return; 507 508 scd->sc_intr(scd, p, cc); 509 } 510 511 void 512 uhidev_get_report_desc(struct uhidev_softc *sc, void **desc, int *size) 513 { 514 *desc = sc->sc_repdesc; 515 *size = sc->sc_repdesc_size; 516 } 517 518 int 519 uhidev_open(struct uhidev *scd) 520 { 521 struct uhidev_softc *sc = scd->sc_parent; 522 usbd_status err; 523 int error; 524 525 DPRINTF(("uhidev_open: open pipe, state=%d refcnt=%d\n", 526 scd->sc_state, sc->sc_refcnt)); 527 528 if (scd->sc_state & UHIDEV_OPEN) 529 return (EBUSY); 530 scd->sc_state |= UHIDEV_OPEN; 531 if (sc->sc_refcnt++) 532 return (0); 533 534 if (sc->sc_isize == 0) 535 return (0); 536 537 sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 538 539 /* Set up input interrupt pipe. */ 540 DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize, 541 sc->sc_iep_addr)); 542 543 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_iep_addr, 544 USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_ibuf, 545 sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL); 546 if (err != USBD_NORMAL_COMPLETION) { 547 DPRINTF(("uhidopen: usbd_open_pipe_intr failed, " 548 "error=%d\n", err)); 549 error = EIO; 550 goto out1; 551 } 552 553 DPRINTF(("uhidev_open: sc->sc_ipipe=%p\n", sc->sc_ipipe)); 554 555 sc->sc_ixfer = usbd_alloc_xfer(sc->sc_udev); 556 if (sc->sc_ixfer == NULL) { 557 DPRINTF(("uhidev_open: couldn't allocate an xfer\n")); 558 error = ENOMEM; 559 goto out1; // xxxx 560 } 561 562 /* 563 * Set up output interrupt pipe if an output interrupt endpoint 564 * exists. 565 */ 566 if (sc->sc_oep_addr != -1) { 567 DPRINTF(("uhidev_open: oep=0x%02x\n", sc->sc_oep_addr)); 568 569 err = usbd_open_pipe(sc->sc_iface, sc->sc_oep_addr, 570 0, &sc->sc_opipe); 571 if (err != USBD_NORMAL_COMPLETION) { 572 DPRINTF(("uhidev_open: usbd_open_pipe failed, " 573 "error=%d\n", err)); 574 error = EIO; 575 goto out2; 576 } 577 578 DPRINTF(("uhidev_open: sc->sc_opipe=%p\n", sc->sc_opipe)); 579 580 sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev); 581 if (sc->sc_oxfer == NULL) { 582 DPRINTF(("uhidev_open: couldn't allocate an xfer\n")); 583 error = ENOMEM; 584 goto out3; 585 } 586 587 sc->sc_owxfer = usbd_alloc_xfer(sc->sc_udev); 588 if (sc->sc_owxfer == NULL) { 589 DPRINTF(("uhidev_open: couldn't allocate owxfer\n")); 590 error = ENOMEM; 591 goto out3; 592 } 593 } 594 595 return (0); 596 597 out3: 598 /* Abort output pipe */ 599 usbd_close_pipe(sc->sc_opipe); 600 out2: 601 /* Abort input pipe */ 602 usbd_close_pipe(sc->sc_ipipe); 603 out1: 604 DPRINTF(("uhidev_open: failed in someway")); 605 free(sc->sc_ibuf, M_USBDEV, sc->sc_isize); 606 scd->sc_state &= ~UHIDEV_OPEN; 607 sc->sc_refcnt = 0; 608 sc->sc_ipipe = NULL; 609 sc->sc_opipe = NULL; 610 if (sc->sc_oxfer != NULL) { 611 usbd_free_xfer(sc->sc_oxfer); 612 sc->sc_oxfer = NULL; 613 } 614 if (sc->sc_owxfer != NULL) { 615 usbd_free_xfer(sc->sc_owxfer); 616 sc->sc_owxfer = NULL; 617 } 618 if (sc->sc_ixfer != NULL) { 619 usbd_free_xfer(sc->sc_ixfer); 620 sc->sc_ixfer = NULL; 621 } 622 return (error); 623 } 624 625 void 626 uhidev_close(struct uhidev *scd) 627 { 628 struct uhidev_softc *sc = scd->sc_parent; 629 630 if (!(scd->sc_state & UHIDEV_OPEN)) 631 return; 632 scd->sc_state &= ~UHIDEV_OPEN; 633 if (--sc->sc_refcnt) 634 return; 635 DPRINTF(("uhidev_close: close pipe\n")); 636 637 /* Disable interrupts. */ 638 if (sc->sc_opipe != NULL) { 639 usbd_close_pipe(sc->sc_opipe); 640 sc->sc_opipe = NULL; 641 } 642 643 if (sc->sc_ipipe != NULL) { 644 usbd_close_pipe(sc->sc_ipipe); 645 sc->sc_ipipe = NULL; 646 } 647 648 if (sc->sc_oxfer != NULL) { 649 usbd_free_xfer(sc->sc_oxfer); 650 sc->sc_oxfer = NULL; 651 } 652 653 if (sc->sc_owxfer != NULL) { 654 usbd_free_xfer(sc->sc_owxfer); 655 sc->sc_owxfer = NULL; 656 } 657 658 if (sc->sc_ixfer != NULL) { 659 usbd_free_xfer(sc->sc_ixfer); 660 sc->sc_ixfer = NULL; 661 } 662 663 if (sc->sc_ibuf != NULL) { 664 free(sc->sc_ibuf, M_USBDEV, sc->sc_isize); 665 sc->sc_ibuf = NULL; 666 } 667 } 668 669 int 670 uhidev_report_type_conv(int hid_type_id) 671 { 672 switch (hid_type_id) { 673 case hid_input: 674 return UHID_INPUT_REPORT; 675 case hid_output: 676 return UHID_OUTPUT_REPORT; 677 case hid_feature: 678 return UHID_FEATURE_REPORT; 679 default: 680 return -1; 681 } 682 } 683 684 int 685 uhidev_set_report(struct uhidev_softc *sc, int type, int id, void *data, 686 int len) 687 { 688 usb_device_request_t req; 689 char *buf = data; 690 int actlen = len; 691 692 /* Prepend the reportID. */ 693 if (id > 0) { 694 len++; 695 buf = malloc(len, M_TEMP, M_WAITOK); 696 buf[0] = id; 697 memcpy(buf + 1, data, len - 1); 698 } 699 700 if (sc->sc_opipe != NULL) { 701 usbd_setup_xfer(sc->sc_owxfer, sc->sc_opipe, 0, buf, len, 702 USBD_SYNCHRONOUS | USBD_CATCH, 0, NULL); 703 if (usbd_transfer(sc->sc_owxfer)) { 704 usbd_clear_endpoint_stall(sc->sc_opipe); 705 actlen = -1; 706 } 707 } else { 708 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 709 req.bRequest = UR_SET_REPORT; 710 USETW2(req.wValue, type, id); 711 USETW(req.wIndex, sc->sc_ifaceno); 712 USETW(req.wLength, len); 713 714 if (usbd_do_request(sc->sc_udev, &req, buf)) 715 actlen = -1; 716 } 717 718 if (id > 0) 719 free(buf, M_TEMP, len); 720 721 return (actlen); 722 } 723 724 void 725 uhidev_set_report_async_cb(struct usbd_xfer *xfer, void *priv, usbd_status err) 726 { 727 struct uhidev_softc *sc = priv; 728 729 if (err == USBD_STALLED) 730 usbd_clear_endpoint_stall_async(sc->sc_opipe); 731 usbd_free_xfer(xfer); 732 } 733 734 int 735 uhidev_set_report_async(struct uhidev_softc *sc, int type, int id, void *data, 736 int len) 737 { 738 struct usbd_xfer *xfer; 739 usb_device_request_t req; 740 int actlen = len; 741 char *buf; 742 743 xfer = usbd_alloc_xfer(sc->sc_udev); 744 if (xfer == NULL) 745 return (-1); 746 747 if (id > 0) 748 len++; 749 750 buf = usbd_alloc_buffer(xfer, len); 751 if (buf == NULL) { 752 usbd_free_xfer(xfer); 753 return (-1); 754 } 755 756 /* Prepend the reportID. */ 757 if (id > 0) { 758 buf[0] = id; 759 memcpy(buf + 1, data, len - 1); 760 } else { 761 memcpy(buf, data, len); 762 } 763 764 if (sc->sc_opipe != NULL) { 765 usbd_setup_xfer(xfer, sc->sc_opipe, sc, buf, len, 766 USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 767 uhidev_set_report_async_cb); 768 if (usbd_transfer(xfer)) { 769 usbd_clear_endpoint_stall_async(sc->sc_opipe); 770 actlen = -1; 771 } 772 } else { 773 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 774 req.bRequest = UR_SET_REPORT; 775 USETW2(req.wValue, type, id); 776 USETW(req.wIndex, sc->sc_ifaceno); 777 USETW(req.wLength, len); 778 if (usbd_request_async(xfer, &req, NULL, NULL)) 779 actlen = -1; 780 } 781 782 return (actlen); 783 } 784 785 int 786 uhidev_get_report(struct uhidev_softc *sc, int type, int id, void *data, 787 int len) 788 { 789 usb_device_request_t req; 790 char *buf = data; 791 usbd_status err; 792 int actlen; 793 794 if (id > 0) { 795 len++; 796 buf = malloc(len, M_TEMP, M_WAITOK|M_ZERO); 797 } 798 799 req.bmRequestType = UT_READ_CLASS_INTERFACE; 800 req.bRequest = UR_GET_REPORT; 801 USETW2(req.wValue, type, id); 802 USETW(req.wIndex, sc->sc_ifaceno); 803 USETW(req.wLength, len); 804 805 err = usbd_do_request_flags(sc->sc_udev, &req, buf, 0, &actlen, 806 USBD_DEFAULT_TIMEOUT); 807 if (err != USBD_NORMAL_COMPLETION && err != USBD_SHORT_XFER) 808 actlen = -1; 809 810 /* Skip the reportID. */ 811 if (id > 0) { 812 memcpy(data, buf + 1, len - 1); 813 free(buf, M_TEMP, len); 814 } 815 816 return (actlen); 817 } 818 819 void 820 uhidev_get_report_async_cb(struct usbd_xfer *xfer, void *priv, usbd_status err) 821 { 822 struct uhidev_async_info *info = priv; 823 char *buf; 824 int len = -1; 825 826 if (!usbd_is_dying(xfer->pipe->device)) { 827 if (err == USBD_NORMAL_COMPLETION || err == USBD_SHORT_XFER) { 828 len = xfer->actlen; 829 buf = KERNADDR(&xfer->dmabuf, 0); 830 if (info->id > 0) { 831 len--; 832 memcpy(info->data, buf + 1, len); 833 } else { 834 memcpy(info->data, buf, len); 835 } 836 } 837 info->callback(info->priv, info->id, info->data, len); 838 } 839 free(info, M_TEMP, sizeof(*info)); 840 usbd_free_xfer(xfer); 841 } 842 843 int 844 uhidev_get_report_async(struct uhidev_softc *sc, int type, int id, void *data, 845 int len, void *priv, void (*callback)(void *, int, void *, int)) 846 { 847 struct usbd_xfer *xfer; 848 usb_device_request_t req; 849 struct uhidev_async_info *info; 850 int actlen = len; 851 char *buf; 852 853 xfer = usbd_alloc_xfer(sc->sc_udev); 854 if (xfer == NULL) 855 return (-1); 856 857 if (id > 0) 858 len++; 859 860 buf = usbd_alloc_buffer(xfer, len); 861 if (buf == NULL) { 862 usbd_free_xfer(xfer); 863 return (-1); 864 } 865 866 info = malloc(sizeof(*info), M_TEMP, M_NOWAIT); 867 if (info == NULL) { 868 usbd_free_xfer(xfer); 869 return (-1); 870 } 871 872 info->callback = callback; 873 info->priv = priv; 874 info->data = data; 875 info->id = id; 876 877 req.bmRequestType = UT_READ_CLASS_INTERFACE; 878 req.bRequest = UR_GET_REPORT; 879 USETW2(req.wValue, type, id); 880 USETW(req.wIndex, sc->sc_ifaceno); 881 USETW(req.wLength, len); 882 883 if (usbd_request_async(xfer, &req, info, uhidev_get_report_async_cb)) { 884 free(info, M_TEMP, sizeof(*info)); 885 actlen = -1; 886 } 887 888 return (actlen); 889 } 890 891 usbd_status 892 uhidev_write(struct uhidev_softc *sc, void *data, int len) 893 { 894 usbd_status error; 895 896 DPRINTF(("uhidev_write: data=%p, len=%d\n", data, len)); 897 898 if (sc->sc_opipe == NULL) 899 return USBD_INVAL; 900 901 #ifdef UHIDEV_DEBUG 902 if (uhidevdebug > 50) { 903 904 u_int32_t i; 905 u_int8_t *d = data; 906 907 DPRINTF(("uhidev_write: data =")); 908 for (i = 0; i < len; i++) 909 DPRINTF((" %02x", d[i])); 910 DPRINTF(("\n")); 911 } 912 #endif 913 usbd_setup_xfer(sc->sc_owxfer, sc->sc_opipe, 0, data, len, 914 USBD_SYNCHRONOUS | USBD_CATCH, 0, NULL); 915 error = usbd_transfer(sc->sc_owxfer); 916 if (error) 917 usbd_clear_endpoint_stall(sc->sc_opipe); 918 919 return (error); 920 } 921 922 int 923 uhidev_ioctl(struct uhidev *sc, u_long cmd, caddr_t addr, int flag, 924 struct proc *p) 925 { 926 struct usb_ctl_report_desc *rd; 927 struct usb_ctl_report *re; 928 int size; 929 void *desc; 930 931 switch (cmd) { 932 case USB_GET_REPORT_DESC: 933 uhidev_get_report_desc(sc->sc_parent, &desc, &size); 934 rd = (struct usb_ctl_report_desc *)addr; 935 size = min(size, sizeof rd->ucrd_data); 936 rd->ucrd_size = size; 937 memcpy(rd->ucrd_data, desc, size); 938 break; 939 case USB_GET_REPORT: 940 re = (struct usb_ctl_report *)addr; 941 switch (re->ucr_report) { 942 case UHID_INPUT_REPORT: 943 size = sc->sc_isize; 944 break; 945 case UHID_OUTPUT_REPORT: 946 size = sc->sc_osize; 947 break; 948 case UHID_FEATURE_REPORT: 949 size = sc->sc_fsize; 950 break; 951 default: 952 return EINVAL; 953 } 954 if (uhidev_get_report(sc->sc_parent, re->ucr_report, 955 sc->sc_report_id, re->ucr_data, size) != size) 956 return EIO; 957 break; 958 case USB_SET_REPORT: 959 re = (struct usb_ctl_report *)addr; 960 switch (re->ucr_report) { 961 case UHID_INPUT_REPORT: 962 size = sc->sc_isize; 963 break; 964 case UHID_OUTPUT_REPORT: 965 size = sc->sc_osize; 966 break; 967 case UHID_FEATURE_REPORT: 968 size = sc->sc_fsize; 969 break; 970 default: 971 return EINVAL; 972 } 973 if (uhidev_set_report(sc->sc_parent, re->ucr_report, 974 sc->sc_report_id, re->ucr_data, size) != size) 975 return EIO; 976 break; 977 case USB_GET_REPORT_ID: 978 *(int *)addr = sc->sc_report_id; 979 break; 980 default: 981 return -1; 982 } 983 return 0; 984 } 985 986 int 987 uhidev_set_report_dev(struct uhidev_softc *sc, struct uhidev *dev, int repid) 988 { 989 if ((dev->sc_state & UHIDEV_OPEN) == 0) 990 return ENODEV; 991 if (repid >= sc->sc_nrepid) 992 return EINVAL; 993 994 sc->sc_subdevs[repid] = dev; 995 return 0; 996 } 997