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uhidev.c revision 1.53
      1 /*	$NetBSD: uhidev.c,v 1.53 2011/12/22 20:07:01 jakllsch 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 (at) 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 1.53 2011/12/22 20:07:01 jakllsch 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 #if NRND > 0
    358 				rnd_attach_source(&csc->rnd_source,
    359 						  device_xname(dev),
    360 						  RND_TYPE_TTY, 0);
    361 #endif
    362 			}
    363 		}
    364 	}
    365 	free(repsizes, M_TEMP);
    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 #if NRND > 0
    432 	struct uhidev *csc;
    433 #endif
    434 
    435 	DPRINTF(("uhidev_detach: sc=%p flags=%d\n", sc, flags));
    436 
    437 	sc->sc_dying = 1;
    438 	if (sc->sc_ipipe != NULL)
    439 		usbd_abort_pipe(sc->sc_ipipe);
    440 
    441 	if (sc->sc_repdesc != NULL)
    442 		free(sc->sc_repdesc, M_USBDEV);
    443 
    444 	rv = 0;
    445 	for (i = 0; i < sc->sc_nrepid; i++) {
    446 		if (sc->sc_subdevs[i] != NULL) {
    447 #if NRND > 0
    448 			csc = device_private(sc->sc_subdevs[i]);
    449 			rnd_detach_source(&csc->rnd_source);
    450 #endif
    451 			rv |= config_detach(sc->sc_subdevs[i], flags);
    452 		}
    453 	}
    454 
    455 	usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->sc_udev,
    456 			   sc->sc_dev);
    457 
    458 	pmf_device_deregister(self);
    459 
    460 	return (rv);
    461 }
    462 
    463 void
    464 uhidev_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status)
    465 {
    466 	struct uhidev_softc *sc = addr;
    467 	device_t cdev;
    468 	struct uhidev *scd;
    469 	u_char *p;
    470 	u_int rep;
    471 	u_int32_t cc;
    472 
    473 	usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL);
    474 
    475 #ifdef UHIDEV_DEBUG
    476 	if (uhidevdebug > 5) {
    477 		u_int32_t i;
    478 
    479 		DPRINTF(("uhidev_intr: status=%d cc=%d\n", status, cc));
    480 		DPRINTF(("uhidev_intr: data ="));
    481 		for (i = 0; i < cc; i++)
    482 			DPRINTF((" %02x", sc->sc_ibuf[i]));
    483 		DPRINTF(("\n"));
    484 	}
    485 #endif
    486 
    487 	if (status == USBD_CANCELLED)
    488 		return;
    489 
    490 	if (status != USBD_NORMAL_COMPLETION) {
    491 		DPRINTF(("%s: interrupt status=%d\n", device_xname(sc->sc_dev),
    492 			 status));
    493 		usbd_clear_endpoint_stall_async(sc->sc_ipipe);
    494 		return;
    495 	}
    496 
    497 	p = sc->sc_ibuf;
    498 	if (sc->sc_nrepid != 1)
    499 		rep = *p++, cc--;
    500 	else
    501 		rep = 0;
    502 	if (rep >= sc->sc_nrepid) {
    503 		printf("uhidev_intr: bad repid %d\n", rep);
    504 		return;
    505 	}
    506 	cdev = sc->sc_subdevs[rep];
    507 	if (!cdev)
    508 		return;
    509 	scd = device_private(cdev);
    510 	DPRINTFN(5,("uhidev_intr: rep=%d, scd=%p state=0x%x\n",
    511 		    rep, scd, scd ? scd->sc_state : 0));
    512 	if (!(scd->sc_state & UHIDEV_OPEN))
    513 		return;
    514 #ifdef UHIDEV_DEBUG
    515 	if (scd->sc_in_rep_size != cc) {
    516 		DPRINTF(("%s: expected %d bytes, got %d\n",
    517 		       device_xname(sc->sc_dev), scd->sc_in_rep_size, cc));
    518 	}
    519 #endif
    520 	if (cc == 0) {
    521 		DPRINTF(("%s: 0-length input ignored\n",
    522 			device_xname(sc->sc_dev)));
    523 		return;
    524 	}
    525 #if NRND > 0
    526 	rnd_add_uint32(&scd->rnd_source, (uintptr_t)(sc->sc_ibuf));
    527 #endif
    528 	scd->sc_intr(scd, p, cc);
    529 }
    530 
    531 void
    532 uhidev_get_report_desc(struct uhidev_softc *sc, void **desc, int *size)
    533 {
    534 	*desc = sc->sc_repdesc;
    535 	*size = sc->sc_repdesc_size;
    536 }
    537 
    538 int
    539 uhidev_open(struct uhidev *scd)
    540 {
    541 	struct uhidev_softc *sc = scd->sc_parent;
    542 	usbd_status err;
    543 	int error;
    544 
    545 	DPRINTF(("uhidev_open: open pipe, state=%d refcnt=%d\n",
    546 		 scd->sc_state, sc->sc_refcnt));
    547 
    548 	if (scd->sc_state & UHIDEV_OPEN)
    549 		return (EBUSY);
    550 	scd->sc_state |= UHIDEV_OPEN;
    551 	if (sc->sc_refcnt++)
    552 		return (0);
    553 
    554 	if (sc->sc_isize == 0)
    555 		return (0);
    556 
    557 	sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
    558 
    559 	/* Set up input interrupt pipe. */
    560 	DPRINTF(("uhidev_open: isize=%d, ep=0x%02x\n", sc->sc_isize,
    561 		 sc->sc_iep_addr));
    562 
    563 	err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_iep_addr,
    564 		  USBD_SHORT_XFER_OK, &sc->sc_ipipe, sc, sc->sc_ibuf,
    565 		  sc->sc_isize, uhidev_intr, USBD_DEFAULT_INTERVAL);
    566 	if (err != USBD_NORMAL_COMPLETION) {
    567 		DPRINTF(("uhidopen: usbd_open_pipe_intr failed, "
    568 		    "error=%d\n", err));
    569 		error = EIO;
    570 		goto out1;
    571 	}
    572 
    573 	/*
    574 	 * Set up output interrupt pipe if an output interrupt endpoint
    575 	 * exists.
    576 	 */
    577 	if (sc->sc_oep_addr != -1) {
    578 		DPRINTF(("uhidev_open: oep=0x%02x\n", sc->sc_oep_addr));
    579 
    580 		err = usbd_open_pipe(sc->sc_iface, sc->sc_oep_addr,
    581 		    0, &sc->sc_opipe);
    582 
    583 		if (err != USBD_NORMAL_COMPLETION) {
    584 			DPRINTF(("uhidev_open: usbd_open_pipe failed, "
    585 			    "error=%d\n", err));
    586 			error = EIO;
    587 			goto out2;
    588 		}
    589 		DPRINTF(("uhidev_open: sc->sc_opipe=%p\n", sc->sc_opipe));
    590 
    591 		sc->sc_oxfer = usbd_alloc_xfer(sc->sc_udev);
    592 		if (sc->sc_oxfer == NULL) {
    593 			DPRINTF(("uhidev_open: couldn't allocate an xfer\n"));
    594 			error = ENOMEM;
    595 			goto out3;
    596 		}
    597 	}
    598 
    599 	return (0);
    600 out3:
    601 	/* Abort output pipe */
    602 	usbd_close_pipe(sc->sc_opipe);
    603 out2:
    604 	/* Abort input pipe */
    605 	usbd_close_pipe(sc->sc_ipipe);
    606 out1:
    607 	DPRINTF(("uhidev_open: failed in someway"));
    608 	free(sc->sc_ibuf, M_USBDEV);
    609 	scd->sc_state &= ~UHIDEV_OPEN;
    610 	sc->sc_refcnt = 0;
    611 	sc->sc_ipipe = NULL;
    612 	sc->sc_opipe = NULL;
    613 	sc->sc_oxfer = NULL;
    614 	return error;
    615 }
    616 
    617 void
    618 uhidev_close(struct uhidev *scd)
    619 {
    620 	struct uhidev_softc *sc = scd->sc_parent;
    621 
    622 	if (!(scd->sc_state & UHIDEV_OPEN))
    623 		return;
    624 	scd->sc_state &= ~UHIDEV_OPEN;
    625 	if (--sc->sc_refcnt)
    626 		return;
    627 	DPRINTF(("uhidev_close: close pipe\n"));
    628 
    629 	if (sc->sc_oxfer != NULL)
    630 		usbd_free_xfer(sc->sc_oxfer);
    631 
    632 	/* Disable interrupts. */
    633 	if (sc->sc_opipe != NULL) {
    634 		usbd_abort_pipe(sc->sc_opipe);
    635 		usbd_close_pipe(sc->sc_opipe);
    636 		sc->sc_opipe = NULL;
    637 	}
    638 
    639 	if (sc->sc_ipipe != NULL) {
    640 		usbd_abort_pipe(sc->sc_ipipe);
    641 		usbd_close_pipe(sc->sc_ipipe);
    642 		sc->sc_ipipe = NULL;
    643 	}
    644 
    645 	if (sc->sc_ibuf != NULL) {
    646 		free(sc->sc_ibuf, M_USBDEV);
    647 		sc->sc_ibuf = NULL;
    648 	}
    649 }
    650 
    651 usbd_status
    652 uhidev_set_report(struct uhidev *scd, int type, void *data, int len)
    653 {
    654 	char *buf;
    655 	usbd_status retstat;
    656 
    657 	if (scd->sc_report_id == 0)
    658 		return usbd_set_report(scd->sc_parent->sc_iface, type,
    659 				       scd->sc_report_id, data, len);
    660 
    661 	buf = malloc(len + 1, M_TEMP, M_WAITOK);
    662 	buf[0] = scd->sc_report_id;
    663 	memcpy(buf+1, data, len);
    664 
    665 	retstat = usbd_set_report(scd->sc_parent->sc_iface, type,
    666 				  scd->sc_report_id, buf, len + 1);
    667 
    668 	free(buf, M_TEMP);
    669 
    670 	return retstat;
    671 }
    672 
    673 void
    674 uhidev_set_report_async(struct uhidev *scd, int type, void *data, int len)
    675 {
    676 	/* XXX */
    677 	char buf[100];
    678 	if (scd->sc_report_id) {
    679 		buf[0] = scd->sc_report_id;
    680 		memcpy(buf+1, data, len);
    681 		len++;
    682 		data = buf;
    683 	}
    684 
    685 	usbd_set_report_async(scd->sc_parent->sc_iface, type,
    686 			      scd->sc_report_id, data, len);
    687 }
    688 
    689 usbd_status
    690 uhidev_get_report(struct uhidev *scd, int type, void *data, int len)
    691 {
    692 	return usbd_get_report(scd->sc_parent->sc_iface, type,
    693 			       scd->sc_report_id, data, len);
    694 }
    695 
    696 usbd_status
    697 uhidev_write(struct uhidev_softc *sc, void *data, int len)
    698 {
    699 
    700 	DPRINTF(("uhidev_write: data=%p, len=%d\n", data, len));
    701 
    702 	if (sc->sc_opipe == NULL)
    703 		return USBD_INVAL;
    704 
    705 #ifdef UHIDEV_DEBUG
    706 	if (uhidevdebug > 50) {
    707 
    708 		u_int32_t i;
    709 		u_int8_t *d = data;
    710 
    711 		DPRINTF(("uhidev_write: data ="));
    712 		for (i = 0; i < len; i++)
    713 			DPRINTF((" %02x", d[i]));
    714 		DPRINTF(("\n"));
    715 	}
    716 #endif
    717 	return usbd_intr_transfer(sc->sc_oxfer, sc->sc_opipe, 0,
    718 	    USBD_NO_TIMEOUT, data, &len, "uhidevwi");
    719 }
    720