uhidev.c revision 1.71
1 /* $NetBSD: uhidev.c,v 1.71 2017/08/13 22:29:42 jakllsch Exp $ */ 2 3 /* 4 * Copyright (c) 2001, 2012 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Lennart Augustsson (lennart (at) augustsson.net) at 9 * Carlstedt Research & Technology and Matthew R. Green (mrg (at) eterna.com.au). 10 * 11 * Redistribution and use in source and binary forms, with or without 12 * modification, are permitted provided that the following conditions 13 * are met: 14 * 1. Redistributions of source code must retain the above copyright 15 * notice, this list of conditions and the following disclaimer. 16 * 2. Redistributions in binary form must reproduce the above copyright 17 * notice, this list of conditions and the following disclaimer in the 18 * documentation and/or other materials provided with the distribution. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 22 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 23 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 30 * POSSIBILITY OF SUCH DAMAGE. 31 */ 32 33 /* 34 * HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf 35 */ 36 37 #include <sys/cdefs.h> 38 __KERNEL_RCSID(0, "$NetBSD: uhidev.c,v 1.71 2017/08/13 22:29:42 jakllsch Exp $"); 39 40 #ifdef _KERNEL_OPT 41 #include "opt_usb.h" 42 #endif 43 44 #include <sys/param.h> 45 #include <sys/systm.h> 46 #include <sys/kernel.h> 47 #include <sys/kmem.h> 48 #include <sys/signalvar.h> 49 #include <sys/device.h> 50 #include <sys/ioctl.h> 51 #include <sys/conf.h> 52 #include <sys/rndsource.h> 53 54 #include <dev/usb/usb.h> 55 #include <dev/usb/usbhid.h> 56 57 #include <dev/usb/usbdevs.h> 58 #include <dev/usb/usbdi.h> 59 #include <dev/usb/usbdi_util.h> 60 #include <dev/usb/hid.h> 61 #include <dev/usb/usb_quirks.h> 62 63 #include <dev/usb/uhidev.h> 64 65 /* Report descriptor for broken Wacom Graphire */ 66 #include <dev/usb/ugraphire_rdesc.h> 67 /* Report descriptor for game controllers in "XInput" mode */ 68 #include <dev/usb/xinput_rdesc.h> 69 /* Report descriptor for Xbox One controllers */ 70 #include <dev/usb/x1input_rdesc.h> 71 72 #include "locators.h" 73 74 #ifdef UHIDEV_DEBUG 75 #define DPRINTF(x) if (uhidevdebug) printf x 76 #define DPRINTFN(n,x) if (uhidevdebug>(n)) printf x 77 int uhidevdebug = 0; 78 #else 79 #define DPRINTF(x) 80 #define DPRINTFN(n,x) 81 #endif 82 83 Static void uhidev_intr(struct usbd_xfer *, void *, usbd_status); 84 85 Static int uhidev_maxrepid(void *, int); 86 Static int uhidevprint(void *, const char *); 87 88 int uhidev_match(device_t, cfdata_t, void *); 89 void uhidev_attach(device_t, device_t, void *); 90 void uhidev_childdet(device_t, device_t); 91 int uhidev_detach(device_t, int); 92 int uhidev_activate(device_t, enum devact); 93 extern struct cfdriver uhidev_cd; 94 CFATTACH_DECL2_NEW(uhidev, sizeof(struct uhidev_softc), uhidev_match, 95 uhidev_attach, uhidev_detach, uhidev_activate, NULL, uhidev_childdet); 96 97 int 98 uhidev_match(device_t parent, cfdata_t match, void *aux) 99 { 100 struct usbif_attach_arg *uiaa = aux; 101 102 /* Game controllers in "XInput" mode */ 103 if (USBIF_IS_XINPUT(uiaa)) 104 return UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; 105 /* Xbox One controllers */ 106 if (USBIF_IS_X1INPUT(uiaa) && uiaa->uiaa_ifaceno == 0) 107 return UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO; 108 109 if (uiaa->uiaa_class != UICLASS_HID) 110 return UMATCH_NONE; 111 if (usbd_get_quirks(uiaa->uiaa_device)->uq_flags & UQ_HID_IGNORE) 112 return UMATCH_NONE; 113 return UMATCH_IFACECLASS_GENERIC; 114 } 115 116 void 117 uhidev_attach(device_t parent, device_t self, void *aux) 118 { 119 struct uhidev_softc *sc = device_private(self); 120 struct usbif_attach_arg *uiaa = aux; 121 struct usbd_interface *iface = uiaa->uiaa_iface; 122 usb_interface_descriptor_t *id; 123 usb_endpoint_descriptor_t *ed; 124 struct uhidev_attach_arg uha; 125 device_t dev; 126 struct uhidev *csc; 127 int maxinpktsize, size, nrepid, repid, repsz; 128 int *repsizes; 129 int i; 130 void *desc; 131 const void *descptr; 132 usbd_status err; 133 char *devinfop; 134 int locs[UHIDBUSCF_NLOCS]; 135 136 sc->sc_dev = self; 137 sc->sc_udev = uiaa->uiaa_device; 138 sc->sc_iface = iface; 139 140 aprint_naive("\n"); 141 aprint_normal("\n"); 142 143 mutex_init(&sc->sc_lock, MUTEX_DEFAULT, IPL_SOFTUSB); 144 145 id = usbd_get_interface_descriptor(iface); 146 147 devinfop = usbd_devinfo_alloc(uiaa->uiaa_device, 0); 148 aprint_normal_dev(self, "%s, iclass %d/%d\n", 149 devinfop, id->bInterfaceClass, id->bInterfaceSubClass); 150 usbd_devinfo_free(devinfop); 151 152 if (!pmf_device_register(self, NULL, NULL)) 153 aprint_error_dev(self, "couldn't establish power handler\n"); 154 155 (void)usbd_set_idle(iface, 0, 0); 156 157 if ((usbd_get_quirks(sc->sc_udev)->uq_flags & UQ_NO_SET_PROTO) == 0) 158 (void)usbd_set_protocol(iface, 1); 159 160 maxinpktsize = 0; 161 sc->sc_iep_addr = sc->sc_oep_addr = -1; 162 for (i = 0; i < id->bNumEndpoints; i++) { 163 ed = usbd_interface2endpoint_descriptor(iface, i); 164 if (ed == NULL) { 165 aprint_error_dev(self, 166 "could not read endpoint descriptor\n"); 167 sc->sc_dying = 1; 168 return; 169 } 170 171 DPRINTFN(10,("uhidev_attach: bLength=%d bDescriptorType=%d " 172 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d" 173 " bInterval=%d\n", 174 ed->bLength, ed->bDescriptorType, 175 ed->bEndpointAddress & UE_ADDR, 176 UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out", 177 ed->bmAttributes & UE_XFERTYPE, 178 UGETW(ed->wMaxPacketSize), ed->bInterval)); 179 180 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 181 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 182 maxinpktsize = UGETW(ed->wMaxPacketSize); 183 sc->sc_iep_addr = ed->bEndpointAddress; 184 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 185 (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) { 186 sc->sc_oep_addr = ed->bEndpointAddress; 187 } else { 188 aprint_verbose_dev(self, "endpoint %d: ignored\n", i); 189 } 190 } 191 192 /* 193 * Check that we found an input interrupt endpoint. The output interrupt 194 * endpoint is optional 195 */ 196 if (sc->sc_iep_addr == -1) { 197 aprint_error_dev(self, "no input interrupt endpoint\n"); 198 sc->sc_dying = 1; 199 return; 200 } 201 202 /* XXX need to extend this */ 203 descptr = NULL; 204 if (uiaa->uiaa_vendor == USB_VENDOR_WACOM) { 205 static uByte reportbuf[] = {2, 2, 2}; 206 207 /* The report descriptor for the Wacom Graphire is broken. */ 208 switch (uiaa->uiaa_product) { 209 case USB_PRODUCT_WACOM_GRAPHIRE: 210 case USB_PRODUCT_WACOM_GRAPHIRE2: 211 case USB_PRODUCT_WACOM_GRAPHIRE3_4X5: 212 case USB_PRODUCT_WACOM_GRAPHIRE3_6X8: 213 case USB_PRODUCT_WACOM_GRAPHIRE4_4X5: /* The 6x8 too? */ 214 /* 215 * The Graphire3 needs 0x0202 to be written to 216 * feature report ID 2 before it'll start 217 * returning digitizer data. 218 */ 219 usbd_set_report(uiaa->uiaa_iface, UHID_FEATURE_REPORT, 2, 220 &reportbuf, sizeof(reportbuf)); 221 222 size = sizeof(uhid_graphire3_4x5_report_descr); 223 descptr = uhid_graphire3_4x5_report_descr; 224 break; 225 default: 226 /* Keep descriptor */ 227 break; 228 } 229 } 230 if (USBIF_IS_XINPUT(uiaa)) { 231 size = sizeof(uhid_xinput_report_descr); 232 descptr = uhid_xinput_report_descr; 233 } 234 if (USBIF_IS_X1INPUT(uiaa)) { 235 sc->sc_flags |= UHIDEV_F_XB1; 236 size = sizeof(uhid_x1input_report_descr); 237 descptr = uhid_x1input_report_descr; 238 } 239 240 if (descptr) { 241 desc = kmem_alloc(size, KM_SLEEP); 242 err = USBD_NORMAL_COMPLETION; 243 memcpy(desc, descptr, size); 244 } else { 245 desc = NULL; 246 err = usbd_read_report_desc(uiaa->uiaa_iface, &desc, &size); 247 } 248 if (err) { 249 aprint_error_dev(self, "no report descriptor\n"); 250 sc->sc_dying = 1; 251 return; 252 } 253 254 if (uiaa->uiaa_vendor == USB_VENDOR_HOSIDEN && 255 uiaa->uiaa_product == USB_PRODUCT_HOSIDEN_PPP) { 256 static uByte reportbuf[] = { 1 }; 257 /* 258 * This device was sold by Konami with its ParaParaParadise 259 * game for PlayStation2. It needs to be "turned on" 260 * before it will send any reports. 261 */ 262 263 usbd_set_report(uiaa->uiaa_iface, UHID_FEATURE_REPORT, 0, 264 &reportbuf, sizeof(reportbuf)); 265 } 266 267 if (uiaa->uiaa_vendor == USB_VENDOR_LOGITECH && 268 uiaa->uiaa_product == USB_PRODUCT_LOGITECH_CBT44 && size == 0xb1) { 269 uint8_t *data = desc; 270 /* 271 * This device has a odd USAGE_MINIMUM value that would 272 * cause the multimedia keys to have their usage number 273 * shifted up one usage. Adjust so the usages are sane. 274 */ 275 276 if (data[0x56] == 0x19 && data[0x57] == 0x01 && 277 data[0x58] == 0x2a && data[0x59] == 0x8c) 278 data[0x57] = 0x00; 279 } 280 281 /* 282 * Enable the Six Axis and DualShock 3 controllers. 283 * See http://ps3.jim.sh/sixaxis/usb/ 284 */ 285 if (uiaa->uiaa_vendor == USB_VENDOR_SONY && 286 uiaa->uiaa_product == USB_PRODUCT_SONY_PS3CONTROLLER) { 287 usb_device_request_t req; 288 char data[17]; 289 int actlen; 290 291 req.bmRequestType = UT_READ_CLASS_INTERFACE; 292 req.bRequest = 1; 293 USETW(req.wValue, 0x3f2); 294 USETW(req.wIndex, 0); 295 USETW(req.wLength, sizeof(data)); 296 297 usbd_do_request_flags(sc->sc_udev, &req, data, 298 USBD_SHORT_XFER_OK, &actlen, USBD_DEFAULT_TIMEOUT); 299 } 300 301 sc->sc_repdesc = desc; 302 sc->sc_repdesc_size = size; 303 304 uha.uiaa = uiaa; 305 nrepid = uhidev_maxrepid(desc, size); 306 if (nrepid < 0) 307 return; 308 if (nrepid > 0) 309 aprint_normal_dev(self, "%d report ids\n", nrepid); 310 nrepid++; 311 repsizes = kmem_alloc(nrepid * sizeof(*repsizes), KM_SLEEP); 312 sc->sc_subdevs = kmem_zalloc(nrepid * sizeof(device_t), 313 KM_SLEEP); 314 315 /* Just request max packet size for the interrupt pipe */ 316 sc->sc_isize = maxinpktsize; 317 sc->sc_nrepid = nrepid; 318 319 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev, sc->sc_dev); 320 321 for (repid = 0; repid < nrepid; repid++) { 322 repsz = hid_report_size(desc, size, hid_input, repid); 323 DPRINTF(("uhidev_match: repid=%d, repsz=%d\n", repid, repsz)); 324 repsizes[repid] = repsz; 325 } 326 327 DPRINTF(("uhidev_attach: isize=%d\n", sc->sc_isize)); 328 329 uha.parent = sc; 330 for (repid = 0; repid < nrepid; repid++) { 331 DPRINTF(("uhidev_match: try repid=%d\n", repid)); 332 if (hid_report_size(desc, size, hid_input, repid) == 0 && 333 hid_report_size(desc, size, hid_output, repid) == 0 && 334 hid_report_size(desc, size, hid_feature, repid) == 0) { 335 ; /* already NULL in sc->sc_subdevs[repid] */ 336 } else { 337 uha.reportid = repid; 338 locs[UHIDBUSCF_REPORTID] = repid; 339 340 dev = config_found_sm_loc(self, 341 "uhidbus", locs, &uha, 342 uhidevprint, config_stdsubmatch); 343 sc->sc_subdevs[repid] = dev; 344 if (dev != NULL) { 345 csc = device_private(dev); 346 csc->sc_in_rep_size = repsizes[repid]; 347 #ifdef DIAGNOSTIC 348 DPRINTF(("uhidev_match: repid=%d dev=%p\n", 349 repid, dev)); 350 if (csc->sc_intr == NULL) { 351 kmem_free(repsizes, 352 nrepid * sizeof(*repsizes)); 353 aprint_error_dev(self, 354 "sc_intr == NULL\n"); 355 return; 356 } 357 #endif 358 rnd_attach_source(&csc->rnd_source, 359 device_xname(dev), 360 RND_TYPE_TTY, 361 RND_FLAG_DEFAULT); 362 } 363 } 364 } 365 kmem_free(repsizes, nrepid * sizeof(*repsizes)); 366 367 return; 368 } 369 370 int 371 uhidev_maxrepid(void *buf, int len) 372 { 373 struct hid_data *d; 374 struct hid_item h; 375 int maxid; 376 377 maxid = -1; 378 h.report_ID = 0; 379 for (d = hid_start_parse(buf, len, hid_none); hid_get_item(d, &h); ) 380 if (h.report_ID > maxid) 381 maxid = h.report_ID; 382 hid_end_parse(d); 383 return maxid; 384 } 385 386 int 387 uhidevprint(void *aux, const char *pnp) 388 { 389 struct uhidev_attach_arg *uha = aux; 390 391 if (pnp) 392 aprint_normal("uhid at %s", pnp); 393 if (uha->reportid != 0) 394 aprint_normal(" reportid %d", uha->reportid); 395 return UNCONF; 396 } 397 398 int 399 uhidev_activate(device_t self, enum devact act) 400 { 401 struct uhidev_softc *sc = device_private(self); 402 403 switch (act) { 404 case DVACT_DEACTIVATE: 405 sc->sc_dying = 1; 406 return 0; 407 default: 408 return EOPNOTSUPP; 409 } 410 } 411 412 void 413 uhidev_childdet(device_t self, device_t child) 414 { 415 int i; 416 struct uhidev_softc *sc = device_private(self); 417 418 for (i = 0; i < sc->sc_nrepid; i++) { 419 if (sc->sc_subdevs[i] == child) 420 break; 421 } 422 KASSERT(i < sc->sc_nrepid); 423 sc->sc_subdevs[i] = NULL; 424 } 425 426 int 427 uhidev_detach(device_t self, int flags) 428 { 429 struct uhidev_softc *sc = device_private(self); 430 int i, rv; 431 struct uhidev *csc; 432 433 DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags)); 434 435 sc->sc_dying = 1; 436 if (sc->sc_ipipe != NULL) 437 usbd_abort_pipe(sc->sc_ipipe); 438 439 if (sc->sc_repdesc != NULL) 440 kmem_free(sc->sc_repdesc, sc->sc_repdesc_size); 441 442 rv = 0; 443 for (i = 0; i < sc->sc_nrepid; i++) { 444 if (sc->sc_subdevs[i] != NULL) { 445 csc = device_private(sc->sc_subdevs[i]); 446 rnd_detach_source(&csc->rnd_source); 447 rv |= config_detach(sc->sc_subdevs[i], flags); 448 } 449 } 450 451 usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev, sc->sc_dev); 452 453 pmf_device_deregister(self); 454 mutex_destroy(&sc->sc_lock); 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 device_t cdev; 464 struct uhidev *scd; 465 u_char *p; 466 u_int rep; 467 uint32_t cc; 468 469 usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL); 470 471 #ifdef UHIDEV_DEBUG 472 if (uhidevdebug > 5) { 473 uint32_t i; 474 475 DPRINTF(("uhidev_intr: status=%d cc=%d\n", status, cc)); 476 DPRINTF(("uhidev_intr: data =")); 477 for (i = 0; i < cc; i++) 478 DPRINTF((" %02x", sc->sc_ibuf[i])); 479 DPRINTF(("\n")); 480 } 481 #endif 482 483 if (status == USBD_CANCELLED) 484 return; 485 486 if (status != USBD_NORMAL_COMPLETION) { 487 DPRINTF(("%s: interrupt status=%d\n", device_xname(sc->sc_dev), 488 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 cdev = sc->sc_subdevs[rep]; 503 if (!cdev) 504 return; 505 scd = device_private(cdev); 506 DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n", 507 rep, scd, scd ? scd->sc_state : 0)); 508 if (!(scd->sc_state & UHIDEV_OPEN)) 509 return; 510 #ifdef UHIDEV_DEBUG 511 if (scd->sc_in_rep_size != cc) { 512 DPRINTF(("%s: expected %d bytes, got %d\n", 513 device_xname(sc->sc_dev), scd->sc_in_rep_size, cc)); 514 } 515 #endif 516 if (cc == 0) { 517 DPRINTF(("%s: 0-length input ignored\n", 518 device_xname(sc->sc_dev))); 519 return; 520 } 521 rnd_add_uint32(&scd->rnd_source, (uintptr_t)(sc->sc_ibuf)); 522 scd->sc_intr(scd, p, cc); 523 } 524 525 void 526 uhidev_get_report_desc(struct uhidev_softc *sc, void **desc, int *size) 527 { 528 *desc = sc->sc_repdesc; 529 *size = sc->sc_repdesc_size; 530 } 531 532 int 533 uhidev_open(struct uhidev *scd) 534 { 535 struct uhidev_softc *sc = scd->sc_parent; 536 usbd_status err; 537 int error; 538 539 DPRINTF(("uhidev_open: open pipe, state=%d\n", scd->sc_state)); 540 541 mutex_enter(&sc->sc_lock); 542 if (scd->sc_state & UHIDEV_OPEN) { 543 mutex_exit(&sc->sc_lock); 544 return EBUSY; 545 } 546 scd->sc_state |= UHIDEV_OPEN; 547 if (sc->sc_refcnt++) { 548 mutex_exit(&sc->sc_lock); 549 return 0; 550 } 551 mutex_exit(&sc->sc_lock); 552 553 if (sc->sc_isize == 0) 554 return 0; 555 556 sc->sc_ibuf = kmem_alloc(sc->sc_isize, KM_SLEEP); 557 558 /* Set up input interrupt pipe. */ 559 DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize, 560 sc->sc_iep_addr)); 561 562 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_iep_addr, 563 USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_ibuf, 564 sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL); 565 if (err != USBD_NORMAL_COMPLETION) { 566 DPRINTF(("uhidopen: usbd_open_pipe_intr failed, " 567 "error=%d\n", err)); 568 error = EIO; 569 goto out1; 570 } 571 572 /* 573 * Set up output interrupt pipe if an output interrupt endpoint 574 * exists. 575 */ 576 if (sc->sc_oep_addr != -1) { 577 DPRINTF(("uhidev_open: oep=0x%02x\n", sc->sc_oep_addr)); 578 579 err = usbd_open_pipe(sc->sc_iface, sc->sc_oep_addr, 580 0, &sc->sc_opipe); 581 582 if (err != USBD_NORMAL_COMPLETION) { 583 DPRINTF(("uhidev_open: usbd_open_pipe failed, " 584 "error=%d\n", err)); 585 error = EIO; 586 goto out2; 587 } 588 DPRINTF(("uhidev_open: sc->sc_opipe=%p\n", sc->sc_opipe)); 589 590 error = usbd_create_xfer(sc->sc_opipe, UHIDEV_OSIZE, 0, 0, 591 &sc->sc_oxfer); 592 if (error) { 593 DPRINTF(("uhidev_open: couldn't allocate an xfer\n")); 594 goto out3; 595 } 596 597 if (sc->sc_flags & UHIDEV_F_XB1) { 598 uint8_t init_data[] = { 0x05, 0x20 }; 599 int init_data_len = sizeof(init_data); 600 err = usbd_intr_transfer(sc->sc_oxfer, sc->sc_opipe, 0, 601 USBD_NO_TIMEOUT, init_data, &init_data_len); 602 if (err != USBD_NORMAL_COMPLETION) { 603 DPRINTF(("uhidev_open: xb1 init failed, " 604 "error=%d\n", err)); 605 error = EIO; 606 goto out4; 607 } 608 } 609 } 610 611 return 0; 612 out4: 613 /* Free output xfer */ 614 if (sc->sc_oxfer != NULL) 615 usbd_destroy_xfer(sc->sc_oxfer); 616 out3: 617 /* Abort output pipe */ 618 usbd_close_pipe(sc->sc_opipe); 619 out2: 620 /* Abort input pipe */ 621 usbd_close_pipe(sc->sc_ipipe); 622 out1: 623 DPRINTF(("uhidev_open: failed in someway")); 624 kmem_free(sc->sc_ibuf, sc->sc_isize); 625 mutex_enter(&sc->sc_lock); 626 scd->sc_state &= ~UHIDEV_OPEN; 627 sc->sc_refcnt = 0; 628 sc->sc_ibuf = NULL; 629 sc->sc_ipipe = NULL; 630 sc->sc_opipe = NULL; 631 sc->sc_oxfer = NULL; 632 mutex_exit(&sc->sc_lock); 633 return error; 634 } 635 636 void 637 uhidev_stop(struct uhidev *scd) 638 { 639 struct uhidev_softc *sc = scd->sc_parent; 640 641 /* Disable interrupts. */ 642 if (sc->sc_opipe != NULL) { 643 usbd_abort_pipe(sc->sc_opipe); 644 usbd_close_pipe(sc->sc_opipe); 645 sc->sc_opipe = NULL; 646 } 647 648 if (sc->sc_ipipe != NULL) { 649 usbd_abort_pipe(sc->sc_ipipe); 650 usbd_close_pipe(sc->sc_ipipe); 651 sc->sc_ipipe = NULL; 652 } 653 654 if (sc->sc_ibuf != NULL) { 655 kmem_free(sc->sc_ibuf, sc->sc_isize); 656 sc->sc_ibuf = NULL; 657 } 658 } 659 660 void 661 uhidev_close(struct uhidev *scd) 662 { 663 struct uhidev_softc *sc = scd->sc_parent; 664 665 mutex_enter(&sc->sc_lock); 666 if (!(scd->sc_state & UHIDEV_OPEN)) { 667 mutex_exit(&sc->sc_lock); 668 return; 669 } 670 scd->sc_state &= ~UHIDEV_OPEN; 671 if (--sc->sc_refcnt) { 672 mutex_exit(&sc->sc_lock); 673 return; 674 } 675 mutex_exit(&sc->sc_lock); 676 677 DPRINTF(("uhidev_close: close pipe\n")); 678 679 if (sc->sc_oxfer != NULL) { 680 usbd_destroy_xfer(sc->sc_oxfer); 681 sc->sc_oxfer = NULL; 682 } 683 684 685 /* Possibly redundant, but properly handled */ 686 uhidev_stop(scd); 687 } 688 689 usbd_status 690 uhidev_set_report(struct uhidev *scd, int type, void *data, int len) 691 { 692 char *buf; 693 usbd_status retstat; 694 695 if (scd->sc_report_id == 0) 696 return usbd_set_report(scd->sc_parent->sc_iface, type, 697 scd->sc_report_id, data, len); 698 699 buf = kmem_alloc(len + 1, KM_SLEEP); 700 buf[0] = scd->sc_report_id; 701 memcpy(buf+1, data, len); 702 703 retstat = usbd_set_report(scd->sc_parent->sc_iface, type, 704 scd->sc_report_id, buf, len + 1); 705 706 kmem_free(buf, len + 1); 707 708 return retstat; 709 } 710 711 usbd_status 712 uhidev_get_report(struct uhidev *scd, int type, void *data, int len) 713 { 714 return usbd_get_report(scd->sc_parent->sc_iface, type, 715 scd->sc_report_id, data, len); 716 } 717 718 usbd_status 719 uhidev_write(struct uhidev_softc *sc, void *data, int len) 720 { 721 722 DPRINTF(("uhidev_write: data=%p, len=%d\n", data, len)); 723 724 if (sc->sc_opipe == NULL) 725 return USBD_INVAL; 726 727 #ifdef UHIDEV_DEBUG 728 if (uhidevdebug > 50) { 729 730 uint32_t i; 731 uint8_t *d = data; 732 733 DPRINTF(("uhidev_write: data =")); 734 for (i = 0; i < len; i++) 735 DPRINTF((" %02x", d[i])); 736 DPRINTF(("\n")); 737 } 738 #endif 739 return usbd_intr_transfer(sc->sc_oxfer, sc->sc_opipe, 0, USBD_NO_TIMEOUT, 740 data, &len); 741 } 742
Indexes created Wed Sep 24 05:09:52 GMT 2025