1 /* $OpenBSD: uhidev.c,v 1.83 2020/08/31 12:26:49 patrick 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: http://www.usb.org/developers/devclass_docs/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_ALLREPORTID; 254 255 /* Look for a driver claiming all report IDs first. */ 256 dev = config_found_sm(self, &uha, NULL, uhidevsubmatch); 257 if (dev != NULL) { 258 for (repid = 0; repid < nrepid; repid++) 259 sc->sc_subdevs[repid] = (struct uhidev *)dev; 260 return; 261 } 262 263 for (repid = 0; repid < nrepid; repid++) { 264 DPRINTF(("%s: try repid=%d\n", __func__, repid)); 265 if (hid_report_size(desc, size, hid_input, repid) == 0 && 266 hid_report_size(desc, size, hid_output, repid) == 0 && 267 hid_report_size(desc, size, hid_feature, repid) == 0) 268 continue; 269 270 uha.reportid = repid; 271 dev = config_found_sm(self, &uha, uhidevprint, uhidevsubmatch); 272 sc->sc_subdevs[repid] = (struct uhidev *)dev; 273 } 274 } 275 276 #ifndef SMALL_KERNEL 277 int 278 uhidev_use_rdesc(struct uhidev_softc *sc, usb_interface_descriptor_t *id, 279 int vendor, int product, void **descp, int *sizep) 280 { 281 static uByte reportbuf[] = {2, 2}; 282 const void *descptr = NULL; 283 void *desc; 284 int size; 285 286 if (vendor == USB_VENDOR_WACOM) { 287 /* The report descriptor for the Wacom Graphire is broken. */ 288 switch (product) { 289 case USB_PRODUCT_WACOM_GRAPHIRE: 290 size = sizeof(uhid_graphire_report_descr); 291 descptr = uhid_graphire_report_descr; 292 break; 293 case USB_PRODUCT_WACOM_GRAPHIRE3_4X5: 294 case USB_PRODUCT_WACOM_GRAPHIRE4_4X5: 295 uhidev_set_report(sc, UHID_FEATURE_REPORT, 296 2, &reportbuf, sizeof(reportbuf)); 297 size = sizeof(uhid_graphire3_4x5_report_descr); 298 descptr = uhid_graphire3_4x5_report_descr; 299 break; 300 default: 301 break; 302 } 303 } else if ((id->bInterfaceClass == UICLASS_VENDOR && 304 id->bInterfaceSubClass == UISUBCLASS_XBOX360_CONTROLLER && 305 id->bInterfaceProtocol == UIPROTO_XBOX360_GAMEPAD)) { 306 /* The Xbox 360 gamepad has no report descriptor. */ 307 size = sizeof(uhid_xb360gp_report_descr); 308 descptr = uhid_xb360gp_report_descr; 309 } 310 311 if (descptr) { 312 desc = malloc(size, M_USBDEV, M_NOWAIT); 313 if (desc == NULL) 314 return (ENOMEM); 315 316 memcpy(desc, descptr, size); 317 318 *descp = desc; 319 *sizep = size; 320 } 321 322 return (0); 323 } 324 #endif /* !SMALL_KERNEL */ 325 326 int 327 uhidev_maxrepid(void *buf, int len) 328 { 329 struct hid_data *d; 330 struct hid_item h; 331 int maxid; 332 333 maxid = -1; 334 h.report_ID = 0; 335 for (d = hid_start_parse(buf, len, hid_none); hid_get_item(d, &h); ) 336 if (h.report_ID > maxid) 337 maxid = h.report_ID; 338 hid_end_parse(d); 339 return (maxid); 340 } 341 342 int 343 uhidevprint(void *aux, const char *pnp) 344 { 345 struct uhidev_attach_arg *uha = aux; 346 347 if (pnp) 348 printf("uhid at %s", pnp); 349 if (uha->reportid != 0 && uha->reportid != UHIDEV_CLAIM_ALLREPORTID) 350 printf(" reportid %d", uha->reportid); 351 return (UNCONF); 352 } 353 354 int uhidevsubmatch(struct device *parent, void *match, void *aux) 355 { 356 struct uhidev_attach_arg *uha = aux; 357 struct cfdata *cf = match; 358 359 if (cf->uhidevcf_reportid != UHIDEV_UNK_REPORTID && 360 cf->uhidevcf_reportid != uha->reportid) 361 return (0); 362 return ((*cf->cf_attach->ca_match)(parent, cf, aux)); 363 } 364 365 int 366 uhidev_activate(struct device *self, int act) 367 { 368 struct uhidev_softc *sc = (struct uhidev_softc *)self; 369 int i, rv = 0, r; 370 371 switch (act) { 372 case DVACT_DEACTIVATE: 373 for (i = 0; i < sc->sc_nrepid; i++) 374 if (sc->sc_subdevs[i] != NULL) { 375 r = config_deactivate( 376 &sc->sc_subdevs[i]->sc_dev); 377 if (r && r != EOPNOTSUPP) 378 rv = r; 379 } 380 usbd_deactivate(sc->sc_udev); 381 break; 382 } 383 return (rv); 384 } 385 386 int 387 uhidev_detach(struct device *self, int flags) 388 { 389 struct uhidev_softc *sc = (struct uhidev_softc *)self; 390 int i, rv = 0; 391 392 DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags)); 393 394 if (sc->sc_opipe != NULL) { 395 usbd_close_pipe(sc->sc_opipe); 396 sc->sc_opipe = NULL; 397 } 398 399 if (sc->sc_ipipe != NULL) { 400 usbd_close_pipe(sc->sc_ipipe); 401 sc->sc_ipipe = NULL; 402 } 403 404 if (sc->sc_repdesc != NULL) 405 free(sc->sc_repdesc, M_USBDEV, sc->sc_repdesc_size); 406 407 /* 408 * XXX Check if we have only one children claiming all the Report 409 * IDs, this is a hack since we need a dev -> Report ID mapping 410 * for uhidev_intr(). 411 */ 412 if (sc->sc_nrepid > 1 && sc->sc_subdevs[0] != NULL && 413 sc->sc_subdevs[0] == sc->sc_subdevs[1]) 414 return (config_detach(&sc->sc_subdevs[0]->sc_dev, flags)); 415 416 for (i = 0; i < sc->sc_nrepid; i++) { 417 if (sc->sc_subdevs[i] != NULL) { 418 rv |= config_detach(&sc->sc_subdevs[i]->sc_dev, flags); 419 sc->sc_subdevs[i] = NULL; 420 } 421 } 422 423 return (rv); 424 } 425 426 void 427 uhidev_intr(struct usbd_xfer *xfer, void *addr, usbd_status status) 428 { 429 struct uhidev_softc *sc = addr; 430 struct uhidev *scd; 431 u_char *p; 432 u_int rep; 433 u_int32_t cc; 434 435 if (usbd_is_dying(sc->sc_udev)) 436 return; 437 438 usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL); 439 440 #ifdef UHIDEV_DEBUG 441 if (uhidevdebug > 5) { 442 u_int32_t i; 443 444 DPRINTF(("uhidev_intr: status=%d cc=%d\n", status, cc)); 445 DPRINTF(("uhidev_intr: data =")); 446 for (i = 0; i < cc; i++) 447 DPRINTF((" %02x", sc->sc_ibuf[i])); 448 DPRINTF(("\n")); 449 } 450 #endif 451 452 if (status == USBD_CANCELLED || status == USBD_IOERROR) 453 return; 454 455 if (status != USBD_NORMAL_COMPLETION) { 456 DPRINTF(("%s: interrupt status=%d\n", DEVNAME(sc), status)); 457 usbd_clear_endpoint_stall_async(sc->sc_ipipe); 458 return; 459 } 460 461 p = sc->sc_ibuf; 462 if (sc->sc_nrepid != 1) 463 rep = *p++, cc--; 464 else 465 rep = 0; 466 if (rep >= sc->sc_nrepid) { 467 printf("uhidev_intr: bad repid %d\n", rep); 468 return; 469 } 470 scd = sc->sc_subdevs[rep]; 471 DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n", 472 rep, scd, scd ? scd->sc_state : 0)); 473 if (scd == NULL || !(scd->sc_state & UHIDEV_OPEN)) 474 return; 475 476 scd->sc_intr(scd, p, cc); 477 } 478 479 void 480 uhidev_get_report_desc(struct uhidev_softc *sc, void **desc, int *size) 481 { 482 *desc = sc->sc_repdesc; 483 *size = sc->sc_repdesc_size; 484 } 485 486 int 487 uhidev_open(struct uhidev *scd) 488 { 489 struct uhidev_softc *sc = scd->sc_parent; 490 usbd_status err; 491 int error; 492 493 DPRINTF(("uhidev_open: open pipe, state=%d refcnt=%d\n", 494 scd->sc_state, sc->sc_refcnt)); 495 496 if (scd->sc_state & UHIDEV_OPEN) 497 return (EBUSY); 498 scd->sc_state |= UHIDEV_OPEN; 499 if (sc->sc_refcnt++) 500 return (0); 501 502 if (sc->sc_isize == 0) 503 return (0); 504 505 sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK); 506 507 /* Set up input interrupt pipe. */ 508 DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize, 509 sc->sc_iep_addr)); 510 511 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_iep_addr, 512 USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_ibuf, 513 sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL); 514 if (err != USBD_NORMAL_COMPLETION) { 515 DPRINTF(("uhidopen: usbd_open_pipe_intr failed, " 516 "error=%d\n", err)); 517 error = EIO; 518 goto out1; 519 } 520 521 DPRINTF(("uhidev_open: sc->sc_ipipe=%p\n", sc->sc_ipipe)); 522 523 sc->sc_ixfer = usbd_alloc_xfer(sc->sc_udev); 524 if (sc->sc_ixfer == NULL) { 525 DPRINTF(("uhidev_open: couldn't allocate an xfer\n")); 526 error = ENOMEM; 527 goto out1; // xxxx 528 } 529 530 /* 531 * Set up output interrupt pipe if an output interrupt endpoint 532 * exists. 533 */ 534 if (sc->sc_oep_addr != -1) { 535 DPRINTF(("uhidev_open: oep=0x%02x\n", sc->sc_oep_addr)); 536 537 err = usbd_open_pipe(sc->sc_iface, sc->sc_oep_addr, 538 0, &sc->sc_opipe); 539 if (err != USBD_NORMAL_COMPLETION) { 540 DPRINTF(("uhidev_open: usbd_open_pipe failed, " 541 "error=%d\n", err)); 542 error = EIO; 543 goto out2; 544 } 545 546 DPRINTF(("uhidev_open: sc->sc_opipe=%p\n", sc->sc_opipe)); 547 548 sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev); 549 if (sc->sc_oxfer == NULL) { 550 DPRINTF(("uhidev_open: couldn't allocate an xfer\n")); 551 error = ENOMEM; 552 goto out3; 553 } 554 555 sc->sc_owxfer = usbd_alloc_xfer(sc->sc_udev); 556 if (sc->sc_owxfer == NULL) { 557 DPRINTF(("uhidev_open: couldn't allocate owxfer\n")); 558 error = ENOMEM; 559 goto out3; 560 } 561 } 562 563 return (0); 564 565 out3: 566 /* Abort output pipe */ 567 usbd_close_pipe(sc->sc_opipe); 568 out2: 569 /* Abort input pipe */ 570 usbd_close_pipe(sc->sc_ipipe); 571 out1: 572 DPRINTF(("uhidev_open: failed in someway")); 573 free(sc->sc_ibuf, M_USBDEV, sc->sc_isize); 574 scd->sc_state &= ~UHIDEV_OPEN; 575 sc->sc_refcnt = 0; 576 sc->sc_ipipe = NULL; 577 sc->sc_opipe = NULL; 578 if (sc->sc_oxfer != NULL) { 579 usbd_free_xfer(sc->sc_oxfer); 580 sc->sc_oxfer = NULL; 581 } 582 if (sc->sc_owxfer != NULL) { 583 usbd_free_xfer(sc->sc_owxfer); 584 sc->sc_owxfer = NULL; 585 } 586 if (sc->sc_ixfer != NULL) { 587 usbd_free_xfer(sc->sc_ixfer); 588 sc->sc_ixfer = NULL; 589 } 590 return (error); 591 } 592 593 void 594 uhidev_close(struct uhidev *scd) 595 { 596 struct uhidev_softc *sc = scd->sc_parent; 597 598 if (!(scd->sc_state & UHIDEV_OPEN)) 599 return; 600 scd->sc_state &= ~UHIDEV_OPEN; 601 if (--sc->sc_refcnt) 602 return; 603 DPRINTF(("uhidev_close: close pipe\n")); 604 605 /* Disable interrupts. */ 606 if (sc->sc_opipe != NULL) { 607 usbd_close_pipe(sc->sc_opipe); 608 sc->sc_opipe = NULL; 609 } 610 611 if (sc->sc_ipipe != NULL) { 612 usbd_close_pipe(sc->sc_ipipe); 613 sc->sc_ipipe = NULL; 614 } 615 616 if (sc->sc_oxfer != NULL) { 617 usbd_free_xfer(sc->sc_oxfer); 618 sc->sc_oxfer = NULL; 619 } 620 621 if (sc->sc_owxfer != NULL) { 622 usbd_free_xfer(sc->sc_owxfer); 623 sc->sc_owxfer = NULL; 624 } 625 626 if (sc->sc_ixfer != NULL) { 627 usbd_free_xfer(sc->sc_ixfer); 628 sc->sc_ixfer = NULL; 629 } 630 631 if (sc->sc_ibuf != NULL) { 632 free(sc->sc_ibuf, M_USBDEV, sc->sc_isize); 633 sc->sc_ibuf = NULL; 634 } 635 } 636 637 int 638 uhidev_report_type_conv(int hid_type_id) 639 { 640 switch (hid_type_id) { 641 case hid_input: 642 return UHID_INPUT_REPORT; 643 case hid_output: 644 return UHID_OUTPUT_REPORT; 645 case hid_feature: 646 return UHID_FEATURE_REPORT; 647 default: 648 return -1; 649 } 650 } 651 652 int 653 uhidev_set_report(struct uhidev_softc *sc, int type, int id, void *data, 654 int len) 655 { 656 usb_device_request_t req; 657 char *buf = data; 658 int actlen = len; 659 660 /* Prepend the reportID. */ 661 if (id > 0) { 662 len++; 663 buf = malloc(len, M_TEMP, M_WAITOK); 664 buf[0] = id; 665 memcpy(buf + 1, data, len - 1); 666 } 667 668 if (sc->sc_opipe != NULL) { 669 usbd_setup_xfer(sc->sc_owxfer, sc->sc_opipe, 0, buf, len, 670 USBD_SYNCHRONOUS | USBD_CATCH, 0, NULL); 671 if (usbd_transfer(sc->sc_owxfer)) { 672 usbd_clear_endpoint_stall(sc->sc_opipe); 673 actlen = -1; 674 } 675 } else { 676 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 677 req.bRequest = UR_SET_REPORT; 678 USETW2(req.wValue, type, id); 679 USETW(req.wIndex, sc->sc_ifaceno); 680 USETW(req.wLength, len); 681 682 if (usbd_do_request(sc->sc_udev, &req, buf)) 683 actlen = -1; 684 } 685 686 if (id > 0) 687 free(buf, M_TEMP, len); 688 689 return (actlen); 690 } 691 692 void 693 uhidev_set_report_async_cb(struct usbd_xfer *xfer, void *priv, usbd_status err) 694 { 695 struct uhidev_softc *sc = priv; 696 697 if (err == USBD_STALLED) 698 usbd_clear_endpoint_stall_async(sc->sc_opipe); 699 usbd_free_xfer(xfer); 700 } 701 702 int 703 uhidev_set_report_async(struct uhidev_softc *sc, int type, int id, void *data, 704 int len) 705 { 706 struct usbd_xfer *xfer; 707 usb_device_request_t req; 708 int actlen = len; 709 char *buf; 710 711 xfer = usbd_alloc_xfer(sc->sc_udev); 712 if (xfer == NULL) 713 return (-1); 714 715 if (id > 0) 716 len++; 717 718 buf = usbd_alloc_buffer(xfer, len); 719 if (buf == NULL) { 720 usbd_free_xfer(xfer); 721 return (-1); 722 } 723 724 /* Prepend the reportID. */ 725 if (id > 0) { 726 buf[0] = id; 727 memcpy(buf + 1, data, len - 1); 728 } else { 729 memcpy(buf, data, len); 730 } 731 732 if (sc->sc_opipe != NULL) { 733 usbd_setup_xfer(xfer, sc->sc_opipe, sc, buf, len, 734 USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 735 uhidev_set_report_async_cb); 736 if (usbd_transfer(xfer)) { 737 usbd_clear_endpoint_stall_async(sc->sc_opipe); 738 actlen = -1; 739 } 740 } else { 741 req.bmRequestType = UT_WRITE_CLASS_INTERFACE; 742 req.bRequest = UR_SET_REPORT; 743 USETW2(req.wValue, type, id); 744 USETW(req.wIndex, sc->sc_ifaceno); 745 USETW(req.wLength, len); 746 if (usbd_request_async(xfer, &req, NULL, NULL)) 747 actlen = -1; 748 } 749 750 return (actlen); 751 } 752 753 int 754 uhidev_get_report(struct uhidev_softc *sc, int type, int id, void *data, 755 int len) 756 { 757 usb_device_request_t req; 758 char *buf = data; 759 usbd_status err; 760 int actlen; 761 762 if (id > 0) { 763 len++; 764 buf = malloc(len, M_TEMP, M_WAITOK|M_ZERO); 765 } 766 767 req.bmRequestType = UT_READ_CLASS_INTERFACE; 768 req.bRequest = UR_GET_REPORT; 769 USETW2(req.wValue, type, id); 770 USETW(req.wIndex, sc->sc_ifaceno); 771 USETW(req.wLength, len); 772 773 err = usbd_do_request_flags(sc->sc_udev, &req, buf, 0, &actlen, 774 USBD_DEFAULT_TIMEOUT); 775 if (err != USBD_NORMAL_COMPLETION && err != USBD_SHORT_XFER) 776 actlen = -1; 777 778 /* Skip the reportID. */ 779 if (id > 0) { 780 memcpy(data, buf + 1, len - 1); 781 free(buf, M_TEMP, len); 782 } 783 784 return (actlen); 785 } 786 787 void 788 uhidev_get_report_async_cb(struct usbd_xfer *xfer, void *priv, usbd_status err) 789 { 790 struct uhidev_async_info *info = priv; 791 char *buf; 792 int len = -1; 793 794 if (!usbd_is_dying(xfer->pipe->device)) { 795 if (err == USBD_NORMAL_COMPLETION || err == USBD_SHORT_XFER) { 796 len = xfer->actlen; 797 buf = KERNADDR(&xfer->dmabuf, 0); 798 if (info->id > 0) { 799 len--; 800 memcpy(info->data, buf + 1, len); 801 } else { 802 memcpy(info->data, buf, len); 803 } 804 } 805 info->callback(info->priv, info->id, info->data, len); 806 } 807 free(info, M_TEMP, sizeof(*info)); 808 usbd_free_xfer(xfer); 809 } 810 811 int 812 uhidev_get_report_async(struct uhidev_softc *sc, int type, int id, void *data, 813 int len, void *priv, void (*callback)(void *, int, void *, int)) 814 { 815 struct usbd_xfer *xfer; 816 usb_device_request_t req; 817 struct uhidev_async_info *info; 818 int actlen = len; 819 char *buf; 820 821 xfer = usbd_alloc_xfer(sc->sc_udev); 822 if (xfer == NULL) 823 return (-1); 824 825 if (id > 0) 826 len++; 827 828 buf = usbd_alloc_buffer(xfer, len); 829 if (buf == NULL) { 830 usbd_free_xfer(xfer); 831 return (-1); 832 } 833 834 info = malloc(sizeof(*info), M_TEMP, M_NOWAIT); 835 if (info == NULL) { 836 usbd_free_xfer(xfer); 837 return (-1); 838 } 839 840 info->callback = callback; 841 info->priv = priv; 842 info->data = data; 843 info->id = id; 844 845 req.bmRequestType = UT_READ_CLASS_INTERFACE; 846 req.bRequest = UR_GET_REPORT; 847 USETW2(req.wValue, type, id); 848 USETW(req.wIndex, sc->sc_ifaceno); 849 USETW(req.wLength, len); 850 851 if (usbd_request_async(xfer, &req, info, uhidev_get_report_async_cb)) { 852 free(info, M_TEMP, sizeof(*info)); 853 actlen = -1; 854 } 855 856 return (actlen); 857 } 858 859 usbd_status 860 uhidev_write(struct uhidev_softc *sc, void *data, int len) 861 { 862 usbd_status error; 863 864 DPRINTF(("uhidev_write: data=%p, len=%d\n", data, len)); 865 866 if (sc->sc_opipe == NULL) 867 return USBD_INVAL; 868 869 #ifdef UHIDEV_DEBUG 870 if (uhidevdebug > 50) { 871 872 u_int32_t i; 873 u_int8_t *d = data; 874 875 DPRINTF(("uhidev_write: data =")); 876 for (i = 0; i < len; i++) 877 DPRINTF((" %02x", d[i])); 878 DPRINTF(("\n")); 879 } 880 #endif 881 usbd_setup_xfer(sc->sc_owxfer, sc->sc_opipe, 0, data, len, 882 USBD_SYNCHRONOUS | USBD_CATCH, 0, NULL); 883 error = usbd_transfer(sc->sc_owxfer); 884 if (error) 885 usbd_clear_endpoint_stall(sc->sc_opipe); 886 887 return (error); 888 } 889 890 int 891 uhidev_ioctl(struct uhidev *sc, u_long cmd, caddr_t addr, int flag, 892 struct proc *p) 893 { 894 struct usb_ctl_report_desc *rd; 895 struct usb_ctl_report *re; 896 int size; 897 void *desc; 898 899 switch (cmd) { 900 case USB_GET_REPORT_DESC: 901 uhidev_get_report_desc(sc->sc_parent, &desc, &size); 902 rd = (struct usb_ctl_report_desc *)addr; 903 size = min(size, sizeof rd->ucrd_data); 904 rd->ucrd_size = size; 905 memcpy(rd->ucrd_data, desc, size); 906 break; 907 case USB_GET_REPORT: 908 re = (struct usb_ctl_report *)addr; 909 switch (re->ucr_report) { 910 case UHID_INPUT_REPORT: 911 size = sc->sc_isize; 912 break; 913 case UHID_OUTPUT_REPORT: 914 size = sc->sc_osize; 915 break; 916 case UHID_FEATURE_REPORT: 917 size = sc->sc_fsize; 918 break; 919 default: 920 return EINVAL; 921 } 922 if (uhidev_get_report(sc->sc_parent, re->ucr_report, 923 sc->sc_report_id, re->ucr_data, size) != size) 924 return EIO; 925 break; 926 case USB_SET_REPORT: 927 re = (struct usb_ctl_report *)addr; 928 switch (re->ucr_report) { 929 case UHID_INPUT_REPORT: 930 size = sc->sc_isize; 931 break; 932 case UHID_OUTPUT_REPORT: 933 size = sc->sc_osize; 934 break; 935 case UHID_FEATURE_REPORT: 936 size = sc->sc_fsize; 937 break; 938 default: 939 return EINVAL; 940 } 941 if (uhidev_set_report(sc->sc_parent, re->ucr_report, 942 sc->sc_report_id, re->ucr_data, size) != size) 943 return EIO; 944 break; 945 case USB_GET_REPORT_ID: 946 *(int *)addr = sc->sc_report_id; 947 break; 948 default: 949 return -1; 950 } 951 return 0; 952 } 953