xref: /netbsd-src/sys/dev/usb/uhidev.c (revision 9ddb6ab554e70fb9bbd90c3d96b812bc57755a14)
1 /*	$NetBSD: uhidev.c,v 1.55 2012/02/02 19:43:07 tls 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 1.55 2012/02/02 19:43:07 tls 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 /* Report descriptor for game controllers in "XInput" mode */
63 #include <dev/usb/xinput_rdesc.h>
64 
65 #include "locators.h"
66 
67 #ifdef UHIDEV_DEBUG
68 #define DPRINTF(x)	if (uhidevdebug) printf x
69 #define DPRINTFN(n,x)	if (uhidevdebug>(n)) printf x
70 int	uhidevdebug = 0;
71 #else
72 #define DPRINTF(x)
73 #define DPRINTFN(n,x)
74 #endif
75 
76 Static void uhidev_intr(usbd_xfer_handle, usbd_private_handle, usbd_status);
77 
78 Static int uhidev_maxrepid(void *, int);
79 Static int uhidevprint(void *, const char *);
80 
81 int uhidev_match(device_t, cfdata_t, void *);
82 void uhidev_attach(device_t, device_t, void *);
83 void uhidev_childdet(device_t, device_t);
84 int uhidev_detach(device_t, int);
85 int uhidev_activate(device_t, enum devact);
86 extern struct cfdriver uhidev_cd;
87 CFATTACH_DECL2_NEW(uhidev, sizeof(struct uhidev_softc), uhidev_match,
88     uhidev_attach, uhidev_detach, uhidev_activate, NULL, uhidev_childdet);
89 
90 int
91 uhidev_match(device_t parent, cfdata_t match, void *aux)
92 {
93 	struct usbif_attach_arg *uaa = aux;
94 
95 	/* Game controllers in "XInput" mode */
96 	if (USBIF_IS_XINPUT(uaa))
97 		return UMATCH_IFACECLASS_IFACESUBCLASS_IFACEPROTO;
98 	if (uaa->class != UICLASS_HID)
99 		return (UMATCH_NONE);
100 	if (usbd_get_quirks(uaa->device)->uq_flags & UQ_HID_IGNORE)
101 		return (UMATCH_NONE);
102 	return (UMATCH_IFACECLASS_GENERIC);
103 }
104 
105 void
106 uhidev_attach(device_t parent, device_t self, void *aux)
107 {
108 	struct uhidev_softc *sc = device_private(self);
109 	struct usbif_attach_arg *uaa = aux;
110 	usbd_interface_handle iface = uaa->iface;
111 	usb_interface_descriptor_t *id;
112 	usb_endpoint_descriptor_t *ed;
113 	struct uhidev_attach_arg uha;
114 	device_t dev;
115 	struct uhidev *csc;
116 	int maxinpktsize, size, nrepid, repid, repsz;
117 	int *repsizes;
118 	int i;
119 	void *desc;
120 	const void *descptr;
121 	usbd_status err;
122 	char *devinfop;
123 	int locs[UHIDBUSCF_NLOCS];
124 
125 	sc->sc_dev = self;
126 	sc->sc_udev = uaa->device;
127 	sc->sc_iface = iface;
128 
129 	aprint_naive("\n");
130 	aprint_normal("\n");
131 
132 	id = usbd_get_interface_descriptor(iface);
133 
134 	devinfop = usbd_devinfo_alloc(uaa->device, 0);
135 	aprint_normal_dev(self, "%s, iclass %d/%d\n",
136 	       devinfop, id->bInterfaceClass, id->bInterfaceSubClass);
137 	usbd_devinfo_free(devinfop);
138 
139 	if (!pmf_device_register(self, NULL, NULL))
140 		aprint_error_dev(self, "couldn't establish power handler\n");
141 
142 	(void)usbd_set_idle(iface, 0, 0);
143 #if 0
144 
145 	qflags = usbd_get_quirks(sc->sc_udev)->uq_flags;
146 	if ((qflags & UQ_NO_SET_PROTO) == 0 &&
147 	    id->bInterfaceSubClass != UISUBCLASS_BOOT)
148 		(void)usbd_set_protocol(iface, 1);
149 #endif
150 
151 	maxinpktsize = 0;
152 	sc->sc_iep_addr = sc->sc_oep_addr = -1;
153 	for (i = 0; i < id->bNumEndpoints; i++) {
154 		ed = usbd_interface2endpoint_descriptor(iface, i);
155 		if (ed == NULL) {
156 			aprint_error_dev(self,
157 			    "could not read endpoint descriptor\n");
158 			sc->sc_dying = 1;
159 			return;
160 		}
161 
162 		DPRINTFN(10,("uhidev_attach: bLength=%d bDescriptorType=%d "
163 		    "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d"
164 		    " bInterval=%d\n",
165 		    ed->bLength, ed->bDescriptorType,
166 		    ed->bEndpointAddress & UE_ADDR,
167 		    UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out",
168 		    ed->bmAttributes & UE_XFERTYPE,
169 		    UGETW(ed->wMaxPacketSize), ed->bInterval));
170 
171 		if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN &&
172 		    (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) {
173 			maxinpktsize = UGETW(ed->wMaxPacketSize);
174 			sc->sc_iep_addr = ed->bEndpointAddress;
175 		} else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT &&
176 		    (ed->bmAttributes & UE_XFERTYPE) == UE_INTERRUPT) {
177 			sc->sc_oep_addr = ed->bEndpointAddress;
178 		} else {
179 			aprint_verbose_dev(self, "endpoint %d: ignored\n", i);
180 		}
181 	}
182 
183 	/*
184 	 * Check that we found an input interrupt endpoint. The output interrupt
185 	 * endpoint is optional
186 	 */
187 	if (sc->sc_iep_addr == -1) {
188 		aprint_error_dev(self, "no input interrupt endpoint\n");
189 		sc->sc_dying = 1;
190 		return;
191 	}
192 
193 	/* XXX need to extend this */
194 	descptr = NULL;
195 	if (uaa->vendor == USB_VENDOR_WACOM) {
196 		static uByte reportbuf[] = {2, 2, 2};
197 
198 		/* The report descriptor for the Wacom Graphire is broken. */
199 		switch (uaa->product) {
200 		case USB_PRODUCT_WACOM_GRAPHIRE:
201 		case USB_PRODUCT_WACOM_GRAPHIRE2:
202 		case USB_PRODUCT_WACOM_GRAPHIRE3_4X5:
203 		case USB_PRODUCT_WACOM_GRAPHIRE3_6X8:
204 		case USB_PRODUCT_WACOM_GRAPHIRE4_4X5: /* The 6x8 too? */
205 			/*
206 			 * The Graphire3 needs 0x0202 to be written to
207 			 * feature report ID 2 before it'll start
208 			 * returning digitizer data.
209 			 */
210 			usbd_set_report(uaa->iface, UHID_FEATURE_REPORT, 2,
211 			    &reportbuf, sizeof reportbuf);
212 
213 			size = sizeof uhid_graphire3_4x5_report_descr;
214 			descptr = uhid_graphire3_4x5_report_descr;
215 			break;
216 		default:
217 			/* Keep descriptor */
218 			break;
219 		}
220 	}
221 	if (USBIF_IS_XINPUT(uaa)) {
222 		size = sizeof uhid_xinput_report_descr;
223 		descptr = uhid_xinput_report_descr;
224 	}
225 
226 	if (descptr) {
227 		desc = malloc(size, M_USBDEV, M_NOWAIT);
228 		if (desc == NULL)
229 			err = USBD_NOMEM;
230 		else {
231 			err = USBD_NORMAL_COMPLETION;
232 			memcpy(desc, descptr, size);
233 		}
234 	} else {
235 		desc = NULL;
236 		err = usbd_read_report_desc(uaa->iface, &desc, &size,
237 		    M_USBDEV);
238 	}
239 	if (err) {
240 		aprint_error_dev(self, "no report descriptor\n");
241 		sc->sc_dying = 1;
242 		return;
243 	}
244 
245 	if (uaa->vendor == USB_VENDOR_HOSIDEN &&
246 	    uaa->product == USB_PRODUCT_HOSIDEN_PPP) {
247 		static uByte reportbuf[] = { 1 };
248 		/*
249 		 *  This device was sold by Konami with its ParaParaParadise
250 		 *  game for PlayStation2.  It needs to be "turned on"
251 		 *  before it will send any reports.
252 		 */
253 
254 		usbd_set_report(uaa->iface, UHID_FEATURE_REPORT, 0,
255 		    &reportbuf, sizeof reportbuf);
256 	}
257 
258 	if (uaa->vendor == USB_VENDOR_LOGITECH &&
259 	    uaa->product == USB_PRODUCT_LOGITECH_CBT44 && size == 0xb1) {
260 		uint8_t *data = desc;
261 		/*
262 		 * This device has a odd USAGE_MINIMUM value that would
263 		 * cause the multimedia keys to have their usage number
264 		 * shifted up one usage.  Adjust so the usages are sane.
265 		 */
266 
267 		if (data[0x56] == 0x19 && data[0x57] == 0x01 &&
268 		    data[0x58] == 0x2a && data[0x59] == 0x8c)
269 			data[0x57] = 0x00;
270 	}
271 
272 	/*
273 	 * Enable the Six Axis and DualShock 3 controllers.
274 	 * See http://ps3.jim.sh/sixaxis/usb/
275 	 */
276 	if (uaa->vendor == USB_VENDOR_SONY &&
277 	    uaa->product == USB_PRODUCT_SONY_PS3CONTROLLER) {
278 		usb_device_request_t req;
279 		char data[17];
280 		int actlen;
281 
282 		req.bmRequestType = UT_READ_CLASS_INTERFACE;
283 		req.bRequest = 1;
284 		USETW(req.wValue, 0x3f2);
285 		USETW(req.wIndex, 0);
286 		USETW(req.wLength, sizeof data);
287 
288 		usbd_do_request_flags(sc->sc_udev, &req, data,
289 			USBD_SHORT_XFER_OK, &actlen, USBD_DEFAULT_TIMEOUT);
290 	}
291 
292 	sc->sc_repdesc = desc;
293 	sc->sc_repdesc_size = size;
294 
295 	uha.uaa = uaa;
296 	nrepid = uhidev_maxrepid(desc, size);
297 	if (nrepid < 0)
298 		return;
299 	if (nrepid > 0)
300 		aprint_normal_dev(self, "%d report ids\n", nrepid);
301 	nrepid++;
302 	repsizes = malloc(nrepid * sizeof(*repsizes), M_TEMP, M_NOWAIT);
303 	if (repsizes == NULL)
304 		goto nomem;
305 	sc->sc_subdevs = malloc(nrepid * sizeof(device_t),
306 				M_USBDEV, M_NOWAIT | M_ZERO);
307 	if (sc->sc_subdevs == NULL) {
308 		free(repsizes, M_TEMP);
309 nomem:
310 		aprint_error_dev(self, "no memory\n");
311 		return;
312 	}
313 
314 	/* Just request max packet size for the interrupt pipe */
315 	sc->sc_isize = maxinpktsize;
316 	sc->sc_nrepid = nrepid;
317 
318 	usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->sc_udev,
319 			   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 					free(repsizes, M_TEMP);
352 					aprint_error_dev(self,
353 					    "sc_intr == NULL\n");
354 					return;
355 				}
356 #endif
357 				rnd_attach_source(&csc->rnd_source,
358 						  device_xname(dev),
359 						  RND_TYPE_TTY, 0);
360 			}
361 		}
362 	}
363 	free(repsizes, M_TEMP);
364 
365 	return;
366 }
367 
368 int
369 uhidev_maxrepid(void *buf, int len)
370 {
371 	struct hid_data *d;
372 	struct hid_item h;
373 	int maxid;
374 
375 	maxid = -1;
376 	h.report_ID = 0;
377 	for (d = hid_start_parse(buf, len, hid_none); hid_get_item(d, &h); )
378 		if (h.report_ID > maxid)
379 			maxid = h.report_ID;
380 	hid_end_parse(d);
381 	return (maxid);
382 }
383 
384 int
385 uhidevprint(void *aux, const char *pnp)
386 {
387 	struct uhidev_attach_arg *uha = aux;
388 
389 	if (pnp)
390 		aprint_normal("uhid at %s", pnp);
391 	if (uha->reportid != 0)
392 		aprint_normal(" reportid %d", uha->reportid);
393 	return (UNCONF);
394 }
395 
396 int
397 uhidev_activate(device_t self, enum devact act)
398 {
399 	struct uhidev_softc *sc = device_private(self);
400 
401 	switch (act) {
402 	case DVACT_DEACTIVATE:
403 		sc->sc_dying = 1;
404 		return 0;
405 	default:
406 		return EOPNOTSUPP;
407 	}
408 }
409 
410 void
411 uhidev_childdet(device_t self, device_t child)
412 {
413 	int i;
414 	struct uhidev_softc *sc = device_private(self);
415 
416 	for (i = 0; i < sc->sc_nrepid; i++) {
417 		if (sc->sc_subdevs[i] == child)
418 			break;
419 	}
420 	KASSERT(i < sc->sc_nrepid);
421 	sc->sc_subdevs[i] = NULL;
422 }
423 
424 int
425 uhidev_detach(device_t self, int flags)
426 {
427 	struct uhidev_softc *sc = device_private(self);
428 	int i, rv;
429 	struct uhidev *csc;
430 
431 	DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags));
432 
433 	sc->sc_dying = 1;
434 	if (sc->sc_ipipe != NULL)
435 		usbd_abort_pipe(sc->sc_ipipe);
436 
437 	if (sc->sc_repdesc != NULL)
438 		free(sc->sc_repdesc, M_USBDEV);
439 
440 	rv = 0;
441 	for (i = 0; i < sc->sc_nrepid; i++) {
442 		if (sc->sc_subdevs[i] != NULL) {
443 			csc = device_private(sc->sc_subdevs[i]);
444 			rnd_detach_source(&csc->rnd_source);
445 			rv |= config_detach(sc->sc_subdevs[i], flags);
446 		}
447 	}
448 
449 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
450 			   sc->sc_dev);
451 
452 	pmf_device_deregister(self);
453 
454 	return (rv);
455 }
456 
457 void
458 uhidev_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status)
459 {
460 	struct uhidev_softc *sc = addr;
461 	device_t cdev;
462 	struct uhidev *scd;
463 	u_char *p;
464 	u_int rep;
465 	u_int32_t cc;
466 
467 	usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL);
468 
469 #ifdef UHIDEV_DEBUG
470 	if (uhidevdebug > 5) {
471 		u_int32_t i;
472 
473 		DPRINTF(("uhidev_intr: status=%d cc=%d\n", status, cc));
474 		DPRINTF(("uhidev_intr: data ="));
475 		for (i = 0; i < cc; i++)
476 			DPRINTF((" %02x", sc->sc_ibuf[i]));
477 		DPRINTF(("\n"));
478 	}
479 #endif
480 
481 	if (status == USBD_CANCELLED)
482 		return;
483 
484 	if (status != USBD_NORMAL_COMPLETION) {
485 		DPRINTF(("%s: interrupt status=%d\n", device_xname(sc->sc_dev),
486 			 status));
487 		usbd_clear_endpoint_stall_async(sc->sc_ipipe);
488 		return;
489 	}
490 
491 	p = sc->sc_ibuf;
492 	if (sc->sc_nrepid != 1)
493 		rep = *p++, cc--;
494 	else
495 		rep = 0;
496 	if (rep >= sc->sc_nrepid) {
497 		printf("uhidev_intr: bad repid %d\n", rep);
498 		return;
499 	}
500 	cdev = sc->sc_subdevs[rep];
501 	if (!cdev)
502 		return;
503 	scd = device_private(cdev);
504 	DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n",
505 		    rep, scd, scd ? scd->sc_state : 0));
506 	if (!(scd->sc_state & UHIDEV_OPEN))
507 		return;
508 #ifdef UHIDEV_DEBUG
509 	if (scd->sc_in_rep_size != cc) {
510 		DPRINTF(("%s: expected %d bytes, got %d\n",
511 		       device_xname(sc->sc_dev), scd->sc_in_rep_size, cc));
512 	}
513 #endif
514 	if (cc == 0) {
515 		DPRINTF(("%s: 0-length input ignored\n",
516 			device_xname(sc->sc_dev)));
517 		return;
518 	}
519 	rnd_add_uint32(&scd->rnd_source, (uintptr_t)(sc->sc_ibuf));
520 	scd->sc_intr(scd, p, cc);
521 }
522 
523 void
524 uhidev_get_report_desc(struct uhidev_softc *sc, void **desc, int *size)
525 {
526 	*desc = sc->sc_repdesc;
527 	*size = sc->sc_repdesc_size;
528 }
529 
530 int
531 uhidev_open(struct uhidev *scd)
532 {
533 	struct uhidev_softc *sc = scd->sc_parent;
534 	usbd_status err;
535 	int error;
536 
537 	DPRINTF(("uhidev_open: open pipe, state=%d refcnt=%d\n",
538 		 scd->sc_state, sc->sc_refcnt));
539 
540 	if (scd->sc_state & UHIDEV_OPEN)
541 		return (EBUSY);
542 	scd->sc_state |= UHIDEV_OPEN;
543 	if (sc->sc_refcnt++)
544 		return (0);
545 
546 	if (sc->sc_isize == 0)
547 		return (0);
548 
549 	sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
550 
551 	/* Set up input interrupt pipe. */
552 	DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize,
553 		 sc->sc_iep_addr));
554 
555 	err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_iep_addr,
556 		  USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_ibuf,
557 		  sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL);
558 	if (err != USBD_NORMAL_COMPLETION) {
559 		DPRINTF(("uhidopen: usbd_open_pipe_intr failed, "
560 		    "error=%d\n", err));
561 		error = EIO;
562 		goto out1;
563 	}
564 
565 	/*
566 	 * Set up output interrupt pipe if an output interrupt endpoint
567 	 * exists.
568 	 */
569 	if (sc->sc_oep_addr != -1) {
570 		DPRINTF(("uhidev_open: oep=0x%02x\n", sc->sc_oep_addr));
571 
572 		err = usbd_open_pipe(sc->sc_iface, sc->sc_oep_addr,
573 		    0, &sc->sc_opipe);
574 
575 		if (err != USBD_NORMAL_COMPLETION) {
576 			DPRINTF(("uhidev_open: usbd_open_pipe failed, "
577 			    "error=%d\n", err));
578 			error = EIO;
579 			goto out2;
580 		}
581 		DPRINTF(("uhidev_open: sc->sc_opipe=%p\n", sc->sc_opipe));
582 
583 		sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev);
584 		if (sc->sc_oxfer == NULL) {
585 			DPRINTF(("uhidev_open: couldn't allocate an xfer\n"));
586 			error = ENOMEM;
587 			goto out3;
588 		}
589 	}
590 
591 	return (0);
592 out3:
593 	/* Abort output pipe */
594 	usbd_close_pipe(sc->sc_opipe);
595 out2:
596 	/* Abort input pipe */
597 	usbd_close_pipe(sc->sc_ipipe);
598 out1:
599 	DPRINTF(("uhidev_open: failed in someway"));
600 	free(sc->sc_ibuf, M_USBDEV);
601 	scd->sc_state &= ~UHIDEV_OPEN;
602 	sc->sc_refcnt = 0;
603 	sc->sc_ipipe = NULL;
604 	sc->sc_opipe = NULL;
605 	sc->sc_oxfer = NULL;
606 	return error;
607 }
608 
609 void
610 uhidev_close(struct uhidev *scd)
611 {
612 	struct uhidev_softc *sc = scd->sc_parent;
613 
614 	if (!(scd->sc_state & UHIDEV_OPEN))
615 		return;
616 	scd->sc_state &= ~UHIDEV_OPEN;
617 	if (--sc->sc_refcnt)
618 		return;
619 	DPRINTF(("uhidev_close: close pipe\n"));
620 
621 	if (sc->sc_oxfer != NULL)
622 		usbd_free_xfer(sc->sc_oxfer);
623 
624 	/* Disable interrupts. */
625 	if (sc->sc_opipe != NULL) {
626 		usbd_abort_pipe(sc->sc_opipe);
627 		usbd_close_pipe(sc->sc_opipe);
628 		sc->sc_opipe = NULL;
629 	}
630 
631 	if (sc->sc_ipipe != NULL) {
632 		usbd_abort_pipe(sc->sc_ipipe);
633 		usbd_close_pipe(sc->sc_ipipe);
634 		sc->sc_ipipe = NULL;
635 	}
636 
637 	if (sc->sc_ibuf != NULL) {
638 		free(sc->sc_ibuf, M_USBDEV);
639 		sc->sc_ibuf = NULL;
640 	}
641 }
642 
643 usbd_status
644 uhidev_set_report(struct uhidev *scd, int type, void *data, int len)
645 {
646 	char *buf;
647 	usbd_status retstat;
648 
649 	if (scd->sc_report_id == 0)
650 		return usbd_set_report(scd->sc_parent->sc_iface, type,
651 				       scd->sc_report_id, data, len);
652 
653 	buf = malloc(len + 1, M_TEMP, M_WAITOK);
654 	buf[0] = scd->sc_report_id;
655 	memcpy(buf+1, data, len);
656 
657 	retstat = usbd_set_report(scd->sc_parent->sc_iface, type,
658 				  scd->sc_report_id, buf, len + 1);
659 
660 	free(buf, M_TEMP);
661 
662 	return retstat;
663 }
664 
665 void
666 uhidev_set_report_async(struct uhidev *scd, int type, void *data, int len)
667 {
668 	/* XXX */
669 	char buf[100];
670 	if (scd->sc_report_id) {
671 		buf[0] = scd->sc_report_id;
672 		memcpy(buf+1, data, len);
673 		len++;
674 		data = buf;
675 	}
676 
677 	usbd_set_report_async(scd->sc_parent->sc_iface, type,
678 			      scd->sc_report_id, data, len);
679 }
680 
681 usbd_status
682 uhidev_get_report(struct uhidev *scd, int type, void *data, int len)
683 {
684 	return usbd_get_report(scd->sc_parent->sc_iface, type,
685 			       scd->sc_report_id, data, len);
686 }
687 
688 usbd_status
689 uhidev_write(struct uhidev_softc *sc, void *data, int len)
690 {
691 
692 	DPRINTF(("uhidev_write: data=%p, len=%d\n", data, len));
693 
694 	if (sc->sc_opipe == NULL)
695 		return USBD_INVAL;
696 
697 #ifdef UHIDEV_DEBUG
698 	if (uhidevdebug > 50) {
699 
700 		u_int32_t i;
701 		u_int8_t *d = data;
702 
703 		DPRINTF(("uhidev_write: data ="));
704 		for (i = 0; i < len; i++)
705 			DPRINTF((" %02x", d[i]));
706 		DPRINTF(("\n"));
707 	}
708 #endif
709 	return usbd_intr_transfer(sc->sc_oxfer, sc->sc_opipe, 0,
710 	    USBD_NO_TIMEOUT, data, &len, "uhidevwi");
711 }
712