DEVFS - remove dev_ops_add(), dev_ops_get(), and get_dev()
[dragonfly.git] / sys / dev / usbmisc / uhid / uhid.c
CommitLineData
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1/*
2 * $NetBSD: uhid.c,v 1.46 2001/11/13 06:24:55 lukem Exp $
3 * $FreeBSD: src/sys/dev/usb/uhid.c,v 1.65 2003/11/09 09:17:22 tanimura Exp $
74781d8f 4 * $DragonFly: src/sys/dev/usbmisc/uhid/uhid.c,v 1.33 2008/08/14 20:55:53 hasso Exp $
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5 */
6
7/* Also already merged from NetBSD:
8 * $NetBSD: uhid.c,v 1.54 2002/09/23 05:51:21 simonb Exp $
9 */
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10
11/*
12 * Copyright (c) 1998 The NetBSD Foundation, Inc.
13 * All rights reserved.
14 *
15 * This code is derived from software contributed to The NetBSD Foundation
16 * by Lennart Augustsson (lennart@augustsson.net) at
17 * Carlstedt Research & Technology.
18 *
19 * Redistribution and use in source and binary forms, with or without
20 * modification, are permitted provided that the following conditions
21 * are met:
22 * 1. Redistributions of source code must retain the above copyright
23 * notice, this list of conditions and the following disclaimer.
24 * 2. Redistributions in binary form must reproduce the above copyright
25 * notice, this list of conditions and the following disclaimer in the
26 * documentation and/or other materials provided with the distribution.
27 * 3. All advertising materials mentioning features or use of this software
28 * must display the following acknowledgement:
29 * This product includes software developed by the NetBSD
30 * Foundation, Inc. and its contributors.
31 * 4. Neither the name of The NetBSD Foundation nor the names of its
32 * contributors may be used to endorse or promote products derived
33 * from this software without specific prior written permission.
34 *
35 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
36 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
37 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
38 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
39 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
40 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
41 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
42 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
43 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
44 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
45 * POSSIBILITY OF SUCH DAMAGE.
46 */
47
48/*
49 * HID spec: http://www.usb.org/developers/data/usbhid10.pdf
50 */
51
52#include <sys/param.h>
53#include <sys/systm.h>
54#include <sys/kernel.h>
1550dfd9 55#include <sys/lock.h>
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56#include <sys/malloc.h>
57#include <sys/signalvar.h>
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58#include <sys/filio.h>
59#include <sys/module.h>
60#include <sys/bus.h>
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61#include <sys/conf.h>
62#include <sys/tty.h>
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63#include <sys/select.h>
64#include <sys/proc.h>
65#include <sys/vnode.h>
66#include <sys/poll.h>
67#include <sys/sysctl.h>
4e01b467 68#include <sys/thread2.h>
984263bc 69
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70#include <bus/usb/usb.h>
71#include <bus/usb/usbhid.h>
984263bc 72
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73#include <bus/usb/usbdi.h>
74#include <bus/usb/usbdi_util.h>
75#include <bus/usb/hid.h>
984263bc 76
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77/* Report descriptor for broken Wacom Graphire */
78#include <bus/usb/ugraphire_rdesc.h>
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79
80#ifdef USB_DEBUG
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81#define DPRINTF(x) if (uhiddebug) kprintf x
82#define DPRINTFN(n,x) if (uhiddebug>(n)) kprintf x
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83int uhiddebug = 0;
84SYSCTL_NODE(_hw_usb, OID_AUTO, uhid, CTLFLAG_RW, 0, "USB uhid");
85SYSCTL_INT(_hw_usb_uhid, OID_AUTO, debug, CTLFLAG_RW,
86 &uhiddebug, 0, "uhid debug level");
87#else
88#define DPRINTF(x)
89#define DPRINTFN(n,x)
90#endif
91
92struct uhid_softc {
6ed427ca 93 device_t sc_dev; /* base device */
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94 usbd_device_handle sc_udev;
95 usbd_interface_handle sc_iface; /* interface */
96 usbd_pipe_handle sc_intrpipe; /* interrupt pipe */
97 int sc_ep_addr;
98
99 int sc_isize;
100 int sc_osize;
101 int sc_fsize;
102 u_int8_t sc_iid;
103 u_int8_t sc_oid;
104 u_int8_t sc_fid;
105
106 u_char *sc_ibuf;
107 u_char *sc_obuf;
108
109 void *sc_repdesc;
110 int sc_repdesc_size;
111
112 struct clist sc_q;
113 struct selinfo sc_rsel;
114 struct proc *sc_async; /* process that wants SIGIO */
115 u_char sc_state; /* driver state */
116#define UHID_OPEN 0x01 /* device is open */
117#define UHID_ASLP 0x02 /* waiting for device data */
118#define UHID_NEEDCLEAR 0x04 /* needs clearing endpoint stall */
119#define UHID_IMMED 0x08 /* return read data immediately */
120
121 int sc_refcnt;
122 u_char sc_dying;
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123};
124
125#define UHIDUNIT(dev) (minor(dev))
126#define UHID_CHUNK 128 /* chunk size for read */
127#define UHID_BSIZE 1020 /* buffer size */
128
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129d_open_t uhidopen;
130d_close_t uhidclose;
131d_read_t uhidread;
132d_write_t uhidwrite;
133d_ioctl_t uhidioctl;
134d_poll_t uhidpoll;
135
136#define UHID_CDEV_MAJOR 122
137
6ed427ca 138static struct dev_ops uhid_ops = {
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139 { "uhid", UHID_CDEV_MAJOR, 0 },
140 .d_open = uhidopen,
141 .d_close = uhidclose,
142 .d_read = uhidread,
143 .d_write = uhidwrite,
144 .d_ioctl = uhidioctl,
145 .d_poll = uhidpoll,
984263bc 146};
984263bc 147
6ed427ca 148static void uhid_intr(usbd_xfer_handle, usbd_private_handle,
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149 usbd_status);
150
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151static int uhid_do_read(struct uhid_softc *, struct uio *uio, int);
152static int uhid_do_write(struct uhid_softc *, struct uio *uio, int);
153static int uhid_do_ioctl(struct uhid_softc *, u_long, caddr_t, int);
984263bc 154
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155static device_probe_t uhid_match;
156static device_attach_t uhid_attach;
157static device_detach_t uhid_detach;
158
159static devclass_t uhid_devclass;
160
161static kobj_method_t uhid_methods[] = {
162 DEVMETHOD(device_probe, uhid_match),
163 DEVMETHOD(device_attach, uhid_attach),
164 DEVMETHOD(device_detach, uhid_detach),
165 {0,0}
166};
167
168static driver_t uhid_driver = {
169 "uhid",
170 uhid_methods,
171 sizeof(struct uhid_softc)
172};
173
174MODULE_DEPEND(uhid, usb, 1, 1, 1);
984263bc 175
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176static int
177uhid_match(device_t self)
984263bc 178{
e785a5d9 179 struct usb_attach_arg *uaa = device_get_ivars(self);
984263bc 180 usb_interface_descriptor_t *id;
1550dfd9 181
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182 if (uaa->iface == NULL)
183 return (UMATCH_NONE);
184 id = usbd_get_interface_descriptor(uaa->iface);
185 if (id == NULL || id->bInterfaceClass != UICLASS_HID)
186 return (UMATCH_NONE);
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187 if (uaa->matchlvl)
188 return (uaa->matchlvl);
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189 return (UMATCH_IFACECLASS_GENERIC);
190}
191
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192static int
193uhid_attach(device_t self)
984263bc 194{
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195 struct uhid_softc *sc = device_get_softc(self);
196 struct usb_attach_arg *uaa = device_get_ivars(self);
984263bc 197 usbd_interface_handle iface = uaa->iface;
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198 usb_endpoint_descriptor_t *ed;
199 int size;
200 void *desc;
201 usbd_status err;
1550dfd9 202
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203 sc->sc_udev = uaa->device;
204 sc->sc_iface = iface;
e785a5d9 205 sc->sc_dev = self;
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206
207 ed = usbd_interface2endpoint_descriptor(iface, 0);
208 if (ed == NULL) {
e3869ec7 209 kprintf("%s: could not read endpoint descriptor\n",
6ed427ca 210 device_get_nameunit(sc->sc_dev));
984263bc 211 sc->sc_dying = 1;
e785a5d9 212 return ENXIO;
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213 }
214
215 DPRINTFN(10,("uhid_attach: bLength=%d bDescriptorType=%d "
216 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d"
217 " bInterval=%d\n",
1550dfd9 218 ed->bLength, ed->bDescriptorType,
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219 ed->bEndpointAddress & UE_ADDR,
220 UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out",
221 ed->bmAttributes & UE_XFERTYPE,
222 UGETW(ed->wMaxPacketSize), ed->bInterval));
223
224 if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN ||
225 (ed->bmAttributes & UE_XFERTYPE) != UE_INTERRUPT) {
6ed427ca 226 kprintf("%s: unexpected endpoint\n", device_get_nameunit(sc->sc_dev));
984263bc 227 sc->sc_dying = 1;
e785a5d9 228 return ENXIO;
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229 }
230
231 sc->sc_ep_addr = ed->bEndpointAddress;
232
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233 /* The report descriptor for the Wacom Graphire is broken. */
234 if (uaa->vendor == 0x056a && uaa->product == 0x0010 /* &&
1550dfd9 235 uaa->revision == 0x???? */) { /* XXX should use revision */
1550dfd9 236 size = sizeof uhid_graphire_report_descr;
efda3bd0 237 desc = kmalloc(size, M_USBDEV, M_INTWAIT);
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238 err = USBD_NORMAL_COMPLETION;
239 memcpy(desc, uhid_graphire_report_descr, size);
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240 } else {
241 desc = NULL;
242 err = usbd_read_report_desc(uaa->iface, &desc, &size,M_USBDEV);
243 }
244
984263bc 245 if (err) {
6ed427ca 246 kprintf("%s: no report descriptor\n", device_get_nameunit(sc->sc_dev));
984263bc 247 sc->sc_dying = 1;
e785a5d9 248 return ENXIO;
984263bc 249 }
1550dfd9 250
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251 (void)usbd_set_idle(iface, 0, 0);
252
253 sc->sc_isize = hid_report_size(desc, size, hid_input, &sc->sc_iid);
254 sc->sc_osize = hid_report_size(desc, size, hid_output, &sc->sc_oid);
255 sc->sc_fsize = hid_report_size(desc, size, hid_feature, &sc->sc_fid);
256
257 sc->sc_repdesc = desc;
258 sc->sc_repdesc_size = size;
259
fef8985e 260 make_dev(&uhid_ops, device_get_unit(self),
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261 UID_ROOT, GID_OPERATOR,
262 0644, "uhid%d", device_get_unit(self));
984263bc 263
e785a5d9 264 return 0;
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265}
266
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267static int
268uhid_detach(device_t self)
984263bc 269{
e785a5d9 270 struct uhid_softc *sc = device_get_softc(self);
984263bc 271
984263bc 272 DPRINTF(("uhid_detach: sc=%p\n", sc));
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273
274 sc->sc_dying = 1;
275 if (sc->sc_intrpipe != NULL)
276 usbd_abort_pipe(sc->sc_intrpipe);
277
278 if (sc->sc_state & UHID_OPEN) {
4e01b467 279 crit_enter();
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280 if (--sc->sc_refcnt >= 0) {
281 /* Wake everyone */
282 wakeup(&sc->sc_q);
283 /* Wait for processes to go away. */
2939c544 284 usb_detach_wait(sc->sc_dev);
984263bc 285 }
4e01b467 286 crit_exit();
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287 }
288
cd29885a 289 dev_ops_remove_minor(&uhid_ops, device_get_unit(self));
984263bc 290
1550dfd9 291 if (sc->sc_repdesc)
efda3bd0 292 kfree(sc->sc_repdesc, M_USBDEV);
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293
294 return (0);
295}
296
297void
298uhid_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status)
299{
300 struct uhid_softc *sc = addr;
301
302#ifdef USB_DEBUG
303 if (uhiddebug > 5) {
304 u_int32_t cc, i;
1550dfd9 305
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306 usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL);
307 DPRINTF(("uhid_intr: status=%d cc=%d\n", status, cc));
308 DPRINTF(("uhid_intr: data ="));
309 for (i = 0; i < cc; i++)
310 DPRINTF((" %02x", sc->sc_ibuf[i]));
311 DPRINTF(("\n"));
312 }
313#endif
314
315 if (status == USBD_CANCELLED)
316 return;
317
318 if (status != USBD_NORMAL_COMPLETION) {
319 DPRINTF(("uhid_intr: status=%d\n", status));
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320 if (status == USBD_STALLED)
321 sc->sc_state |= UHID_NEEDCLEAR;
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322 return;
323 }
324
325 (void) b_to_q(sc->sc_ibuf, sc->sc_isize, &sc->sc_q);
1550dfd9 326
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327 if (sc->sc_state & UHID_ASLP) {
328 sc->sc_state &= ~UHID_ASLP;
1550dfd9 329 DPRINTFN(5, ("uhid_intr: waking %p\n", &sc->sc_q));
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330 wakeup(&sc->sc_q);
331 }
375a9af6 332 selwakeup(&sc->sc_rsel);
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333 if (sc->sc_async != NULL) {
334 DPRINTFN(3, ("uhid_intr: sending SIGIO %p\n", sc->sc_async));
84204577 335 ksignal(sc->sc_async, SIGIO);
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336 }
337}
338
339int
fef8985e 340uhidopen(struct dev_open_args *ap)
984263bc 341{
b13267a5 342 cdev_t dev = ap->a_head.a_dev;
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343 struct uhid_softc *sc;
344 usbd_status err;
984263bc 345
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346 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
347 if (sc == NULL)
348 return (ENXIO);
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349
350 DPRINTF(("uhidopen: sc=%p\n", sc));
351
352 if (sc->sc_dying)
353 return (ENXIO);
354
355 if (sc->sc_state & UHID_OPEN)
356 return (EBUSY);
357 sc->sc_state |= UHID_OPEN;
358
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359 if ((clist_alloc_cblocks(&sc->sc_q, UHID_BSIZE,
360 UHID_BSIZE), 0) == -1) {
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361 sc->sc_state &= ~UHID_OPEN;
362 return (ENOMEM);
363 }
364
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365 sc->sc_ibuf = kmalloc(sc->sc_isize, M_USBDEV, M_WAITOK);
366 sc->sc_obuf = kmalloc(sc->sc_osize, M_USBDEV, M_WAITOK);
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367
368 /* Set up interrupt pipe. */
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369 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr,
370 USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc, sc->sc_ibuf,
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371 sc->sc_isize, uhid_intr, USBD_DEFAULT_INTERVAL);
372 if (err) {
373 DPRINTF(("uhidopen: usbd_open_pipe_intr failed, "
374 "error=%d\n",err));
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375 kfree(sc->sc_ibuf, M_USBDEV);
376 kfree(sc->sc_obuf, M_USBDEV);
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377 sc->sc_ibuf = sc->sc_obuf = NULL;
378
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379 sc->sc_state &= ~UHID_OPEN;
380 return (EIO);
381 }
382
383 sc->sc_state &= ~UHID_IMMED;
384
385 sc->sc_async = 0;
386
387 return (0);
388}
389
390int
fef8985e 391uhidclose(struct dev_close_args *ap)
984263bc 392{
b13267a5 393 cdev_t dev = ap->a_head.a_dev;
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394 struct uhid_softc *sc;
395
1e089e7e 396 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
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397
398 DPRINTF(("uhidclose: sc=%p\n", sc));
399
400 /* Disable interrupts. */
401 usbd_abort_pipe(sc->sc_intrpipe);
402 usbd_close_pipe(sc->sc_intrpipe);
403 sc->sc_intrpipe = 0;
404
405 ndflush(&sc->sc_q, sc->sc_q.c_cc);
375a9af6 406 clist_free_cblocks(&sc->sc_q);
984263bc 407
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408 kfree(sc->sc_ibuf, M_USBDEV);
409 kfree(sc->sc_obuf, M_USBDEV);
1550dfd9 410 sc->sc_ibuf = sc->sc_obuf = NULL;
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411
412 sc->sc_state &= ~UHID_OPEN;
413
414 sc->sc_async = 0;
415
416 return (0);
417}
418
419int
420uhid_do_read(struct uhid_softc *sc, struct uio *uio, int flag)
421{
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422 int error = 0;
423 size_t length;
424 u_char buffer[UHID_CHUNK];
425 usbd_status err;
426
427 DPRINTFN(1, ("uhidread\n"));
428 if (sc->sc_state & UHID_IMMED) {
429 DPRINTFN(1, ("uhidread immed\n"));
1550dfd9 430
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431 err = usbd_get_report(sc->sc_iface, UHID_INPUT_REPORT,
432 sc->sc_iid, buffer, sc->sc_isize);
433 if (err)
434 return (EIO);
435 return (uiomove(buffer, sc->sc_isize, uio));
436 }
437
4e01b467 438 crit_enter();
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439 while (sc->sc_q.c_cc == 0) {
440 if (flag & IO_NDELAY) {
4e01b467 441 crit_exit();
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442 return (EWOULDBLOCK);
443 }
444 sc->sc_state |= UHID_ASLP;
1550dfd9 445 DPRINTFN(5, ("uhidread: sleep on %p\n", &sc->sc_q));
377d4740 446 error = tsleep(&sc->sc_q, PCATCH, "uhidrea", 0);
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447 DPRINTFN(5, ("uhidread: woke, error=%d\n", error));
448 if (sc->sc_dying)
449 error = EIO;
450 if (error) {
451 sc->sc_state &= ~UHID_ASLP;
452 break;
453 }
454 if (sc->sc_state & UHID_NEEDCLEAR) {
455 DPRINTFN(-1,("uhidread: clearing stall\n"));
456 sc->sc_state &= ~UHID_NEEDCLEAR;
457 usbd_clear_endpoint_stall(sc->sc_intrpipe);
458 }
459 }
4e01b467 460 crit_exit();
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461
462 /* Transfer as many chunks as possible. */
463 while (sc->sc_q.c_cc > 0 && uio->uio_resid > 0 && !error) {
464 length = min(sc->sc_q.c_cc, uio->uio_resid);
465 if (length > sizeof(buffer))
466 length = sizeof(buffer);
467
468 /* Remove a small chunk from the input queue. */
469 (void) q_to_b(&sc->sc_q, buffer, length);
470 DPRINTFN(5, ("uhidread: got %lu chars\n", (u_long)length));
471
472 /* Copy the data to the user process. */
473 if ((error = uiomove(buffer, length, uio)) != 0)
474 break;
475 }
476
477 return (error);
478}
479
480int
fef8985e 481uhidread(struct dev_read_args *ap)
984263bc 482{
b13267a5 483 cdev_t dev = ap->a_head.a_dev;
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484 struct uhid_softc *sc;
485 int error;
486
1e089e7e 487 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
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488
489 sc->sc_refcnt++;
fef8985e 490 error = uhid_do_read(sc, ap->a_uio, ap->a_ioflag);
984263bc 491 if (--sc->sc_refcnt < 0)
2939c544 492 usb_detach_wakeup(sc->sc_dev);
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493 return (error);
494}
495
496int
497uhid_do_write(struct uhid_softc *sc, struct uio *uio, int flag)
498{
499 int error;
500 int size;
501 usbd_status err;
502
503 DPRINTFN(1, ("uhidwrite\n"));
1550dfd9 504
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505 if (sc->sc_dying)
506 return (EIO);
507
508 size = sc->sc_osize;
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509 if (uio->uio_resid != size)
510 return (EINVAL);
511 error = uiomove(sc->sc_obuf, size, uio);
512 if (!error) {
513 if (sc->sc_oid)
514 err = usbd_set_report(sc->sc_iface, UHID_OUTPUT_REPORT,
515 sc->sc_obuf[0], sc->sc_obuf+1, size-1);
516 else
517 err = usbd_set_report(sc->sc_iface, UHID_OUTPUT_REPORT,
518 0, sc->sc_obuf, size);
519 if (err)
520 error = EIO;
521 }
522
523 return (error);
524}
525
526int
fef8985e 527uhidwrite(struct dev_write_args *ap)
984263bc 528{
b13267a5 529 cdev_t dev = ap->a_head.a_dev;
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530 struct uhid_softc *sc;
531 int error;
532
1e089e7e 533 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
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534
535 sc->sc_refcnt++;
fef8985e 536 error = uhid_do_write(sc, ap->a_uio, ap->a_ioflag);
984263bc 537 if (--sc->sc_refcnt < 0)
2939c544 538 usb_detach_wakeup(sc->sc_dev);
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539 return (error);
540}
541
542int
fef8985e 543uhid_do_ioctl(struct uhid_softc *sc, u_long cmd, caddr_t addr, int flag)
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544{
545 struct usb_ctl_report_desc *rd;
546 struct usb_ctl_report *re;
547 int size, id;
548 usbd_status err;
549
550 DPRINTFN(2, ("uhidioctl: cmd=%lx\n", cmd));
551
552 if (sc->sc_dying)
553 return (EIO);
554
555 switch (cmd) {
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556 case FIOASYNC:
557 if (*(int *)addr) {
558 if (sc->sc_async != NULL)
559 return (EBUSY);
fef8985e 560 sc->sc_async = curproc;
1550dfd9 561 DPRINTF(("uhid_do_ioctl: FIOASYNC %p\n", sc->sc_async));
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562 } else
563 sc->sc_async = NULL;
564 break;
565
566 /* XXX this is not the most general solution. */
567 case TIOCSPGRP:
568 if (sc->sc_async == NULL)
569 return (EINVAL);
570 if (*(int *)addr != sc->sc_async->p_pgid)
571 return (EPERM);
572 break;
573
574 case USB_GET_REPORT_DESC:
575 rd = (struct usb_ctl_report_desc *)addr;
576 size = min(sc->sc_repdesc_size, sizeof rd->ucrd_data);
577 rd->ucrd_size = size;
578 memcpy(rd->ucrd_data, sc->sc_repdesc, size);
579 break;
580
581 case USB_SET_IMMED:
582 if (*(int *)addr) {
583 /* XXX should read into ibuf, but does it matter? */
584 err = usbd_get_report(sc->sc_iface, UHID_INPUT_REPORT,
585 sc->sc_iid, sc->sc_ibuf, sc->sc_isize);
586 if (err)
587 return (EOPNOTSUPP);
588
589 sc->sc_state |= UHID_IMMED;
590 } else
591 sc->sc_state &= ~UHID_IMMED;
592 break;
593
594 case USB_GET_REPORT:
595 re = (struct usb_ctl_report *)addr;
596 switch (re->ucr_report) {
597 case UHID_INPUT_REPORT:
598 size = sc->sc_isize;
599 id = sc->sc_iid;
600 break;
601 case UHID_OUTPUT_REPORT:
602 size = sc->sc_osize;
603 id = sc->sc_oid;
604 break;
605 case UHID_FEATURE_REPORT:
606 size = sc->sc_fsize;
607 id = sc->sc_fid;
608 break;
609 default:
610 return (EINVAL);
611 }
612 err = usbd_get_report(sc->sc_iface, re->ucr_report, id, re->ucr_data,
613 size);
614 if (err)
615 return (EIO);
616 break;
617
618 case USB_SET_REPORT:
619 re = (struct usb_ctl_report *)addr;
620 switch (re->ucr_report) {
621 case UHID_INPUT_REPORT:
622 size = sc->sc_isize;
623 id = sc->sc_iid;
624 break;
625 case UHID_OUTPUT_REPORT:
626 size = sc->sc_osize;
627 id = sc->sc_oid;
628 break;
629 case UHID_FEATURE_REPORT:
630 size = sc->sc_fsize;
631 id = sc->sc_fid;
632 break;
633 default:
634 return (EINVAL);
635 }
636 err = usbd_set_report(sc->sc_iface, re->ucr_report, id, re->ucr_data,
637 size);
638 if (err)
639 return (EIO);
640 break;
641
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642 case USB_GET_REPORT_ID:
643 *(int *)addr = 0; /* XXX: we only support reportid 0? */
644 break;
645
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646 default:
647 return (EINVAL);
648 }
649 return (0);
650}
651
652int
fef8985e 653uhidioctl(struct dev_ioctl_args *ap)
984263bc 654{
b13267a5 655 cdev_t dev = ap->a_head.a_dev;
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656 struct uhid_softc *sc;
657 int error;
658
1e089e7e 659 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
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660
661 sc->sc_refcnt++;
fef8985e 662 error = uhid_do_ioctl(sc, ap->a_cmd, ap->a_data, ap->a_fflag);
984263bc 663 if (--sc->sc_refcnt < 0)
2939c544 664 usb_detach_wakeup(sc->sc_dev);
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665 return (error);
666}
667
668int
fef8985e 669uhidpoll(struct dev_poll_args *ap)
984263bc 670{
b13267a5 671 cdev_t dev = ap->a_head.a_dev;
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672 struct uhid_softc *sc;
673 int revents = 0;
984263bc 674
1e089e7e 675 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
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676
677 if (sc->sc_dying)
678 return (EIO);
679
4e01b467 680 crit_enter();
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681 if (ap->a_events & (POLLOUT | POLLWRNORM))
682 revents |= ap->a_events & (POLLOUT | POLLWRNORM);
683 if (ap->a_events & (POLLIN | POLLRDNORM)) {
984263bc 684 if (sc->sc_q.c_cc > 0)
fef8985e 685 revents |= ap->a_events & (POLLIN | POLLRDNORM);
984263bc 686 else
fef8985e 687 selrecord(curthread, &sc->sc_rsel);
984263bc 688 }
4e01b467 689 crit_exit();
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690 ap->a_events = revents;
691 return (0);
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692}
693
984263bc 694DRIVER_MODULE(uhid, uhub, uhid_driver, uhid_devclass, usbd_driver_load, 0);
7c070ee7 695