xref: /netbsd-src/sys/dev/usb/uhidev.c (revision 2de962bd804263c16657f586aa00f1704045df8e)
1 /*	$NetBSD: uhidev.c,v 1.40 2008/04/28 20:23:59 martin Exp $	*/
2 
3 /*
4  * Copyright (c) 2001 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@augustsson.net) at
9  * Carlstedt Research & Technology.
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 1.40 2008/04/28 20:23:59 martin Exp $");
39 
40 #include <sys/param.h>
41 #include <sys/systm.h>
42 #include <sys/kernel.h>
43 #include <sys/malloc.h>
44 #include <sys/signalvar.h>
45 #include <sys/device.h>
46 #include <sys/ioctl.h>
47 #include <sys/conf.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/hid.h>
56 #include <dev/usb/usb_quirks.h>
57 
58 #include <dev/usb/uhidev.h>
59 
60 /* Report descriptor for broken Wacom Graphire */
61 #include <dev/usb/ugraphire_rdesc.h>
62 
63 #include "locators.h"
64 
65 #ifdef UHIDEV_DEBUG
66 #define DPRINTF(x)	if (uhidevdebug) logprintf x
67 #define DPRINTFN(n,x)	if (uhidevdebug>(n)) logprintf x
68 int	uhidevdebug = 0;
69 #else
70 #define DPRINTF(x)
71 #define DPRINTFN(n,x)
72 #endif
73 
74 Static void uhidev_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
75 
76 Static int uhidev_maxrepid(void *, int);
77 Static int uhidevprint(void *, const char *);
78 
79 int uhidev_match(device_t, struct cfdata *, void *);
80 void uhidev_attach(device_t, device_t, void *);
81 void uhidev_childdet(device_t, device_t);
82 int uhidev_detach(device_t, int);
83 int uhidev_activate(device_t, enum devact);
84 extern struct cfdriver uhidev_cd;
85 CFATTACH_DECL2(uhidev, sizeof(struct uhidev_softc), uhidev_match,
86     uhidev_attach, uhidev_detach, uhidev_activate, NULL, uhidev_childdet);
87 
88 USB_MATCH(uhidev)
89 {
90 	USB_IFMATCH_START(uhidev, uaa);
91 
92 	if (uaa->class != UICLASS_HID)
93 		return (UMATCH_NONE);
94 	if (usbd_get_quirks(uaa->device)->uq_flags & UQ_HID_IGNORE)
95 		return (UMATCH_NONE);
96 	return (UMATCH_IFACECLASS_GENERIC);
97 }
98 
99 USB_ATTACH(uhidev)
100 {
101 	USB_IFATTACH_START(uhidev, sc, uaa);
102 	usbd_interface_handle iface = uaa->iface;
103 	usb_interface_descriptor_t *id;
104 	usb_endpoint_descriptor_t *ed;
105 	struct uhidev_attach_arg uha;
106 	struct uhidev *dev;
107 	int size, nrepid, repid, repsz;
108 	int *repsizes;
109 	int i;
110 	void *desc;
111 	const void *descptr;
112 	usbd_status err;
113 	char *devinfop;
114 	int locs[UHIDBUSCF_NLOCS];
115 
116 	sc->sc_udev = uaa->device;
117 	sc->sc_iface = iface;
118 	id = usbd_get_interface_descriptor(iface);
119 
120 	devinfop = usbd_devinfo_alloc(uaa->device, 0);
121 	USB_ATTACH_SETUP;
122 	aprint_normal("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev),
123 	       devinfop, id->bInterfaceClass, id->bInterfaceSubClass);
124 	usbd_devinfo_free(devinfop);
125 
126 	if (!pmf_device_register(self, NULL, NULL))
127 		aprint_error_dev(self, "couldn't establish power handler\n");
128 
129 	(void)usbd_set_idle(iface, 0, 0);
130 #if 0
131 
132 	qflags = usbd_get_quirks(sc->sc_udev)->uq_flags;
133 	if ((qflags & UQ_NO_SET_PROTO) == 0 &&
134 	    id->bInterfaceSubClass != UISUBCLASS_BOOT)
135 		(void)usbd_set_protocol(iface, 1);
136 #endif
137 
138 	sc->sc_iep_addr = sc->sc_oep_addr = -1;
139 	for (i = 0; i < id->bNumEndpoints; i++) {
140 		ed = usbd_interface2endpoint_descriptor(iface, i);
141 		if (ed == NULL) {
142 			aprint_error("%s: could not read endpoint descriptor\n",
143 			    USBDEVNAME(sc->sc_dev));
144 			sc->sc_dying = 1;
145 			USB_ATTACH_ERROR_RETURN;
146 		}
147 
148 		DPRINTFN(10,("uhidev_attach: bLength=%d bDescriptorType=%d "
149 		    "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d"
150 		    " bInterval=%d\n",
151 		    ed->bLength, ed->bDescriptorType,
152 		    ed->bEndpointAddress & UE_ADDR,
153 		    UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out",
154 		    ed->bmAttributes & UE_XFERTYPE,
155 		    UGETW(ed->wMaxPacketSize), ed->bInterval));
156 
157 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
158 		    (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) {
159 			sc->sc_iep_addr = ed->bEndpointAddress;
160 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
161 		    (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) {
162 			sc->sc_oep_addr = ed->bEndpointAddress;
163 		} else {
164 			aprint_verbose("%s: endpoint %d: ignored\n",
165 			    USBDEVNAME(sc->sc_dev), i);
166 		}
167 	}
168 
169 	/*
170 	 * Check that we found an input interrupt endpoint. The output interrupt
171 	 * endpoint is optional
172 	 */
173 	if (sc->sc_iep_addr == -1) {
174 		aprint_error("%s: no input interrupt endpoint\n",
175 		    USBDEVNAME(sc->sc_dev));
176 		sc->sc_dying = 1;
177 		USB_ATTACH_ERROR_RETURN;
178 	}
179 
180 	/* XXX need to extend this */
181 	descptr = NULL;
182 	if (uaa->vendor == USB_VENDOR_WACOM) {
183 		static uByte reportbuf[] = {2, 2, 2};
184 
185 		/* The report descriptor for the Wacom Graphire is broken. */
186 		switch (uaa->product) {
187 		case USB_PRODUCT_WACOM_GRAPHIRE:
188 			size = sizeof uhid_graphire_report_descr;
189 			descptr = uhid_graphire_report_descr;
190 			break;
191 
192 		case USB_PRODUCT_WACOM_GRAPHIRE3_4X5:
193 		case USB_PRODUCT_WACOM_GRAPHIRE3_6X8:
194 		case USB_PRODUCT_WACOM_GRAPHIRE4_4X5: /* The 6x8 too? */
195 			/*
196 			 * The Graphire3 needs 0x0202 to be written to
197 			 * feature report ID 2 before it'll start
198 			 * returning digitizer data.
199 			 */
200 			usbd_set_report(uaa->iface, UHID_FEATURE_REPORT, 2,
201 			    &reportbuf, sizeof reportbuf);
202 
203 			size = sizeof uhid_graphire3_4x5_report_descr;
204 			descptr = uhid_graphire3_4x5_report_descr;
205 			break;
206 		default:
207 			/* Keep descriptor */
208 			break;
209 		}
210 	}
211 
212 	if (descptr) {
213 		desc = malloc(size, M_USBDEV, M_NOWAIT);
214 		if (desc == NULL)
215 			err = USBD_NOMEM;
216 		else {
217 			err = USBD_NORMAL_COMPLETION;
218 			memcpy(desc, descptr, size);
219 		}
220 	} else {
221 		desc = NULL;
222 		err = usbd_read_report_desc(uaa->iface, &desc, &size,
223 		    M_USBDEV);
224 	}
225 	if (err) {
226 		aprint_error("%s: no report descriptor\n",
227 		    USBDEVNAME(sc->sc_dev));
228 		sc->sc_dying = 1;
229 		USB_ATTACH_ERROR_RETURN;
230 	}
231 
232 	if (uaa->vendor == USB_VENDOR_HOSIDEN &&
233 	    uaa->product == USB_PRODUCT_HOSIDEN_PPP) {
234 		static uByte reportbuf[] = { 1 };
235 		/*
236 		 *  This device was sold by Konami with its ParaParaParadise
237 		 *  game for PlayStation2.  It needs to be "turned on"
238 		 *  before it will send any reports.
239 		 */
240 
241 		usbd_set_report(uaa->iface, UHID_FEATURE_REPORT, 0,
242 		    &reportbuf, sizeof reportbuf);
243 	}
244 
245 	sc->sc_repdesc = desc;
246 	sc->sc_repdesc_size = size;
247 
248 	uha.uaa = uaa;
249 	nrepid = uhidev_maxrepid(desc, size);
250 	if (nrepid < 0)
251 		USB_ATTACH_SUCCESS_RETURN;
252 	if (nrepid > 0)
253 		aprint_normal("%s: %d report ids\n",
254 		    USBDEVNAME(sc->sc_dev), nrepid);
255 	nrepid++;
256 	repsizes = malloc(nrepid * sizeof(*repsizes), M_TEMP, M_NOWAIT);
257 	if (repsizes == NULL)
258 		goto nomem;
259 	sc->sc_subdevs = malloc(nrepid * sizeof(device_t),
260 				M_USBDEV, M_NOWAIT | M_ZERO);
261 	if (sc->sc_subdevs == NULL) {
262 		free(repsizes, M_TEMP);
263 nomem:
264 		aprint_error("%s: no memory\n", USBDEVNAME(sc->sc_dev));
265 		USB_ATTACH_ERROR_RETURN;
266 	}
267 	sc->sc_nrepid = nrepid;
268 	sc->sc_isize = 0;
269 
270 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
271 			   USBDEV(sc->sc_dev));
272 
273 	for (repid = 0; repid < nrepid; repid++) {
274 		repsz = hid_report_size(desc, size, hid_input, repid);
275 		DPRINTF(("uhidev_match: repid=%d, repsz=%d\n", repid, repsz));
276 		repsizes[repid] = repsz;
277 		if (repsz > 0) {
278 			if (repsz > sc->sc_isize)
279 				sc->sc_isize = repsz;
280 		}
281 	}
282 	sc->sc_isize += nrepid != 1;	/* space for report ID */
283 	DPRINTF(("uhidev_attach: isize=%d\n", sc->sc_isize));
284 
285 	uha.parent = sc;
286 	for (repid = 0; repid < nrepid; repid++) {
287 		DPRINTF(("uhidev_match: try repid=%d\n", repid));
288 		if (hid_report_size(desc, size, hid_input, repid) == 0 &&
289 		    hid_report_size(desc, size, hid_output, repid) == 0 &&
290 		    hid_report_size(desc, size, hid_feature, repid) == 0) {
291 			;	/* already NULL in sc->sc_subdevs[repid] */
292 		} else {
293 			uha.reportid = repid;
294 			locs[UHIDBUSCF_REPORTID] = repid;
295 
296 			dev = (struct uhidev *)config_found_sm_loc(self,
297 				"uhidbus", locs, &uha,
298 				uhidevprint, config_stdsubmatch);
299 			sc->sc_subdevs[repid] = dev;
300 			if (dev != NULL) {
301 				dev->sc_in_rep_size = repsizes[repid];
302 #ifdef DIAGNOSTIC
303 				DPRINTF(("uhidev_match: repid=%d dev=%p\n",
304 					 repid, dev));
305 				if (dev->sc_intr == NULL) {
306 					free(repsizes, M_TEMP);
307 					printf("%s: sc_intr == NULL\n",
308 					       USBDEVNAME(sc->sc_dev));
309 					USB_ATTACH_ERROR_RETURN;
310 				}
311 #endif
312 #if NRND > 0
313 				rnd_attach_source(&dev->rnd_source,
314 						  USBDEVNAME(dev->sc_dev),
315 						  RND_TYPE_TTY, 0);
316 #endif
317 			}
318 		}
319 	}
320 	free(repsizes, M_TEMP);
321 
322 	USB_ATTACH_SUCCESS_RETURN;
323 }
324 
325 int
326 uhidev_maxrepid(void *buf, int len)
327 {
328 	struct hid_data *d;
329 	struct hid_item h;
330 	int maxid;
331 
332 	maxid = -1;
333 	h.report_ID = 0;
334 	for (d = hid_start_parse(buf, len, hid_none); hid_get_item(d, &h); )
335 		if (h.report_ID > maxid)
336 			maxid = h.report_ID;
337 	hid_end_parse(d);
338 	return (maxid);
339 }
340 
341 int
342 uhidevprint(void *aux, const char *pnp)
343 {
344 	struct uhidev_attach_arg *uha = aux;
345 
346 	if (pnp)
347 		aprint_normal("uhid at %s", pnp);
348 	if (uha->reportid != 0)
349 		aprint_normal(" reportid %d", uha->reportid);
350 	return (UNCONF);
351 }
352 
353 int
354 uhidev_activate(device_t self, enum devact act)
355 {
356 	struct uhidev_softc *sc = device_private(self);
357 	int i, rv;
358 
359 	switch (act) {
360 	case DVACT_ACTIVATE:
361 		return (EOPNOTSUPP);
362 
363 	case DVACT_DEACTIVATE:
364 		rv = 0;
365 		for (i = 0; i < sc->sc_nrepid; i++)
366 			if (sc->sc_subdevs[i] != NULL)
367 				rv |= config_deactivate(
368 					&sc->sc_subdevs[i]->sc_dev);
369 		sc->sc_dying = 1;
370 		break;
371 	default:
372 		rv = 0;
373 		break;
374 	}
375 	return (rv);
376 }
377 
378 void
379 uhidev_childdet(device_t self, device_t child)
380 {
381 	int i;
382 	struct uhidev_softc *sc = device_private(self);
383 
384 	for (i = 0; i < sc->sc_nrepid; i++) {
385 		if (&sc->sc_subdevs[i]->sc_dev == child)
386 			break;
387 	}
388 	KASSERT(i < sc->sc_nrepid);
389 	sc->sc_subdevs[i] = NULL;
390 }
391 
392 USB_DETACH(uhidev)
393 {
394 	USB_DETACH_START(uhidev, sc);
395 	int i, rv;
396 
397 	DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags));
398 
399 	sc->sc_dying = 1;
400 	if (sc->sc_ipipe != NULL)
401 		usbd_abort_pipe(sc->sc_ipipe);
402 
403 	if (sc->sc_repdesc != NULL)
404 		free(sc->sc_repdesc, M_USBDEV);
405 
406 	rv = 0;
407 	for (i = 0; i < sc->sc_nrepid; i++) {
408 		if (sc->sc_subdevs[i] != NULL) {
409 #if NRND > 0
410 			rnd_detach_source(&sc->sc_subdevs[i]->rnd_source);
411 #endif
412 			rv |= config_detach(&sc->sc_subdevs[i]->sc_dev, flags);
413 		}
414 	}
415 
416 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
417 			   USBDEV(sc->sc_dev));
418 
419 	pmf_device_deregister(self);
420 
421 	return (rv);
422 }
423 
424 void
425 uhidev_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status)
426 {
427 	struct uhidev_softc *sc = addr;
428 	struct uhidev *scd;
429 	u_char *p;
430 	u_int rep;
431 	u_int32_t cc;
432 
433 	usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL);
434 
435 #ifdef UHIDEV_DEBUG
436 	if (uhidevdebug > 5) {
437 		u_int32_t i;
438 
439 		DPRINTF(("uhidev_intr: status=%d cc=%d\n", status, cc));
440 		DPRINTF(("uhidev_intr: data ="));
441 		for (i = 0; i < cc; i++)
442 			DPRINTF((" %02x", sc->sc_ibuf[i]));
443 		DPRINTF(("\n"));
444 	}
445 #endif
446 
447 	if (status == USBD_CANCELLED)
448 		return;
449 
450 	if (status != USBD_NORMAL_COMPLETION) {
451 		DPRINTF(("%s: interrupt status=%d\n", USBDEVNAME(sc->sc_dev),
452 			 status));
453 		usbd_clear_endpoint_stall_async(sc->sc_ipipe);
454 		return;
455 	}
456 
457 	p = sc->sc_ibuf;
458 	if (sc->sc_nrepid != 1)
459 		rep = *p++, cc--;
460 	else
461 		rep = 0;
462 	if (rep >= sc->sc_nrepid) {
463 		printf("uhidev_intr: bad repid %d\n", rep);
464 		return;
465 	}
466 	scd = sc->sc_subdevs[rep];
467 	DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n",
468 		    rep, scd, scd ? scd->sc_state : 0));
469 	if (scd == NULL || !(scd->sc_state & UHIDEV_OPEN))
470 		return;
471 	if (scd->sc_in_rep_size != cc) {
472 		printf("%s: bad input length %d != %d\n",
473 		       USBDEVNAME(sc->sc_dev), scd->sc_in_rep_size, cc);
474 		return;
475 	}
476 #if NRND > 0
477 	rnd_add_uint32(&scd->rnd_source, (uintptr_t)(sc->sc_ibuf));
478 #endif
479 	scd->sc_intr(scd, p, cc);
480 }
481 
482 void
483 uhidev_get_report_desc(struct uhidev_softc *sc, void **desc, int *size)
484 {
485 	*desc = sc->sc_repdesc;
486 	*size = sc->sc_repdesc_size;
487 }
488 
489 int
490 uhidev_open(struct uhidev *scd)
491 {
492 	struct uhidev_softc *sc = scd->sc_parent;
493 	usbd_status err;
494 	int error;
495 
496 	DPRINTF(("uhidev_open: open pipe, state=%d refcnt=%d\n",
497 		 scd->sc_state, sc->sc_refcnt));
498 
499 	if (scd->sc_state & UHIDEV_OPEN)
500 		return (EBUSY);
501 	scd->sc_state |= UHIDEV_OPEN;
502 	if (sc->sc_refcnt++)
503 		return (0);
504 
505 	if (sc->sc_isize == 0)
506 		return (0);
507 
508 	sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
509 
510 	/* Set up input interrupt pipe. */
511 	DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize,
512 		 sc->sc_iep_addr));
513 
514 	err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_iep_addr,
515 		  USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_ibuf,
516 		  sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL);
517 	if (err != USBD_NORMAL_COMPLETION) {
518 		DPRINTF(("uhidopen: usbd_open_pipe_intr failed, "
519 		    "error=%d\n", err));
520 		error = EIO;
521 		goto out1;
522 	}
523 
524 	/*
525 	 * Set up output interrupt pipe if an output interrupt endpoint
526 	 * exists.
527 	 */
528 	if (sc->sc_oep_addr != -1) {
529 		DPRINTF(("uhidev_open: oep=0x%02x\n", sc->sc_oep_addr));
530 
531 		err = usbd_open_pipe(sc->sc_iface, sc->sc_oep_addr,
532 		    0, &sc->sc_opipe);
533 
534 		if (err != USBD_NORMAL_COMPLETION) {
535 			DPRINTF(("uhidev_open: usbd_open_pipe failed, "
536 			    "error=%d\n", err));
537 			error = EIO;
538 			goto out2;
539 		}
540 		DPRINTF(("uhidev_open: sc->sc_opipe=%p\n", sc->sc_opipe));
541 
542 		sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev);
543 		if (sc->sc_oxfer == NULL) {
544 			DPRINTF(("uhidev_open: couldn't allocate an xfer\n"));
545 			error = ENOMEM;
546 			goto out3;
547 		}
548 	}
549 
550 	return (0);
551 out3:
552 	/* Abort output pipe */
553 	usbd_close_pipe(sc->sc_opipe);
554 out2:
555 	/* Abort input pipe */
556 	usbd_close_pipe(sc->sc_ipipe);
557 out1:
558 	DPRINTF(("uhidev_open: failed in someway"));
559 	free(sc->sc_ibuf, M_USBDEV);
560 	scd->sc_state &= ~UHIDEV_OPEN;
561 	sc->sc_refcnt = 0;
562 	sc->sc_ipipe = NULL;
563 	sc->sc_opipe = NULL;
564 	sc->sc_oxfer = NULL;
565 	return error;
566 }
567 
568 void
569 uhidev_close(struct uhidev *scd)
570 {
571 	struct uhidev_softc *sc = scd->sc_parent;
572 
573 	if (!(scd->sc_state & UHIDEV_OPEN))
574 		return;
575 	scd->sc_state &= ~UHIDEV_OPEN;
576 	if (--sc->sc_refcnt)
577 		return;
578 	DPRINTF(("uhidev_close: close pipe\n"));
579 
580 	if (sc->sc_oxfer != NULL)
581 		usbd_free_xfer(sc->sc_oxfer);
582 
583 	/* Disable interrupts. */
584 	if (sc->sc_opipe != NULL) {
585 		usbd_abort_pipe(sc->sc_opipe);
586 		usbd_close_pipe(sc->sc_opipe);
587 		sc->sc_opipe = NULL;
588 	}
589 
590 	if (sc->sc_ipipe != NULL) {
591 		usbd_abort_pipe(sc->sc_ipipe);
592 		usbd_close_pipe(sc->sc_ipipe);
593 		sc->sc_ipipe = NULL;
594 	}
595 
596 	if (sc->sc_ibuf != NULL) {
597 		free(sc->sc_ibuf, M_USBDEV);
598 		sc->sc_ibuf = NULL;
599 	}
600 }
601 
602 usbd_status
603 uhidev_set_report(struct uhidev *scd, int type, void *data, int len)
604 {
605 	char *buf;
606 	usbd_status retstat;
607 
608 	if (scd->sc_report_id == 0)
609 		return usbd_set_report(scd->sc_parent->sc_iface, type,
610 				       scd->sc_report_id, data, len);
611 
612 	buf = malloc(len + 1, M_TEMP, M_WAITOK);
613 	buf[0] = scd->sc_report_id;
614 	memcpy(buf+1, data, len);
615 
616 	retstat = usbd_set_report(scd->sc_parent->sc_iface, type,
617 				  scd->sc_report_id, buf, len + 1);
618 
619 	free(buf, M_TEMP);
620 
621 	return retstat;
622 }
623 
624 void
625 uhidev_set_report_async(struct uhidev *scd, int type, void *data, int len)
626 {
627 	/* XXX */
628 	char buf[100];
629 	if (scd->sc_report_id) {
630 		buf[0] = scd->sc_report_id;
631 		memcpy(buf+1, data, len);
632 		len++;
633 		data = buf;
634 	}
635 
636 	usbd_set_report_async(scd->sc_parent->sc_iface, type,
637 			      scd->sc_report_id, data, len);
638 }
639 
640 usbd_status
641 uhidev_get_report(struct uhidev *scd, int type, void *data, int len)
642 {
643 	return usbd_get_report(scd->sc_parent->sc_iface, type,
644 			       scd->sc_report_id, data, len);
645 }
646 
647 usbd_status
648 uhidev_write(struct uhidev_softc *sc, void *data, int len)
649 {
650 
651 	DPRINTF(("uhidev_write: data=%p, len=%d\n", data, len));
652 
653 	if (sc->sc_opipe == NULL)
654 		return USBD_INVAL;
655 
656 #ifdef UHIDEV_DEBUG
657 	if (uhidevdebug > 50) {
658 
659 		u_int32_t i;
660 		u_int8_t *d = data;
661 
662 		DPRINTF(("uhidev_write: data ="));
663 		for (i = 0; i < len; i++)
664 			DPRINTF((" %02x", d[i]));
665 		DPRINTF(("\n"));
666 	}
667 #endif
668 	return usbd_intr_transfer(sc->sc_oxfer, sc->sc_opipe, 0,
669 	    USBD_NO_TIMEOUT, data, &len, "uhidevwi");
670 }
671