kernel - Remove D_KQFILTER flag
[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/proc.h>
64#include <sys/vnode.h>
96bcde04 65#include <sys/event.h>
984263bc 66#include <sys/sysctl.h>
4e01b467 67#include <sys/thread2.h>
984263bc 68
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69#include <bus/usb/usb.h>
70#include <bus/usb/usbhid.h>
984263bc 71
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72#include <bus/usb/usbdi.h>
73#include <bus/usb/usbdi_util.h>
74#include <bus/usb/hid.h>
984263bc 75
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76/* Report descriptor for broken Wacom Graphire */
77#include <bus/usb/ugraphire_rdesc.h>
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78
79#ifdef USB_DEBUG
fc1ef497
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80#define DPRINTF(x) if (uhiddebug) kprintf x
81#define DPRINTFN(n,x) if (uhiddebug>(n)) kprintf x
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82int uhiddebug = 0;
83SYSCTL_NODE(_hw_usb, OID_AUTO, uhid, CTLFLAG_RW, 0, "USB uhid");
84SYSCTL_INT(_hw_usb_uhid, OID_AUTO, debug, CTLFLAG_RW,
85 &uhiddebug, 0, "uhid debug level");
86#else
87#define DPRINTF(x)
88#define DPRINTFN(n,x)
89#endif
90
91struct uhid_softc {
6ed427ca 92 device_t sc_dev; /* base device */
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93 usbd_device_handle sc_udev;
94 usbd_interface_handle sc_iface; /* interface */
95 usbd_pipe_handle sc_intrpipe; /* interrupt pipe */
96 int sc_ep_addr;
97
98 int sc_isize;
99 int sc_osize;
100 int sc_fsize;
101 u_int8_t sc_iid;
102 u_int8_t sc_oid;
103 u_int8_t sc_fid;
104
105 u_char *sc_ibuf;
106 u_char *sc_obuf;
107
108 void *sc_repdesc;
109 int sc_repdesc_size;
110
111 struct clist sc_q;
5b22f1a7 112 struct kqinfo sc_rkq;
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113 struct proc *sc_async; /* process that wants SIGIO */
114 u_char sc_state; /* driver state */
115#define UHID_OPEN 0x01 /* device is open */
116#define UHID_ASLP 0x02 /* waiting for device data */
117#define UHID_NEEDCLEAR 0x04 /* needs clearing endpoint stall */
118#define UHID_IMMED 0x08 /* return read data immediately */
119
120 int sc_refcnt;
121 u_char sc_dying;
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122};
123
124#define UHIDUNIT(dev) (minor(dev))
125#define UHID_CHUNK 128 /* chunk size for read */
126#define UHID_BSIZE 1020 /* buffer size */
127
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128d_open_t uhidopen;
129d_close_t uhidclose;
130d_read_t uhidread;
131d_write_t uhidwrite;
132d_ioctl_t uhidioctl;
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133d_kqfilter_t uhidkqfilter;
134
135static void uhidfilt_detach(struct knote *);
136static int uhidfilt_read(struct knote *, long);
137static int uhidfilt_write(struct knote *, long);
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138
139#define UHID_CDEV_MAJOR 122
140
6ed427ca 141static struct dev_ops uhid_ops = {
d4b8aec4 142 { "uhid", UHID_CDEV_MAJOR, 0 },
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143 .d_open = uhidopen,
144 .d_close = uhidclose,
145 .d_read = uhidread,
146 .d_write = uhidwrite,
147 .d_ioctl = uhidioctl,
96bcde04 148 .d_kqfilter = uhidkqfilter
984263bc 149};
984263bc 150
6ed427ca 151static void uhid_intr(usbd_xfer_handle, usbd_private_handle,
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152 usbd_status);
153
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154static int uhid_do_read(struct uhid_softc *, struct uio *uio, int);
155static int uhid_do_write(struct uhid_softc *, struct uio *uio, int);
156static int uhid_do_ioctl(struct uhid_softc *, u_long, caddr_t, int);
984263bc 157
61b69189
HT
158static device_probe_t uhid_match;
159static device_attach_t uhid_attach;
160static device_detach_t uhid_detach;
161
162static devclass_t uhid_devclass;
163
164static kobj_method_t uhid_methods[] = {
165 DEVMETHOD(device_probe, uhid_match),
166 DEVMETHOD(device_attach, uhid_attach),
167 DEVMETHOD(device_detach, uhid_detach),
168 {0,0}
169};
170
171static driver_t uhid_driver = {
172 "uhid",
173 uhid_methods,
174 sizeof(struct uhid_softc)
175};
176
177MODULE_DEPEND(uhid, usb, 1, 1, 1);
984263bc 178
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179static int
180uhid_match(device_t self)
984263bc 181{
e785a5d9 182 struct usb_attach_arg *uaa = device_get_ivars(self);
984263bc 183 usb_interface_descriptor_t *id;
1550dfd9 184
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185 if (uaa->iface == NULL)
186 return (UMATCH_NONE);
187 id = usbd_get_interface_descriptor(uaa->iface);
188 if (id == NULL || id->bInterfaceClass != UICLASS_HID)
189 return (UMATCH_NONE);
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190 if (uaa->matchlvl)
191 return (uaa->matchlvl);
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192 return (UMATCH_IFACECLASS_GENERIC);
193}
194
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195static int
196uhid_attach(device_t self)
984263bc 197{
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198 struct uhid_softc *sc = device_get_softc(self);
199 struct usb_attach_arg *uaa = device_get_ivars(self);
984263bc 200 usbd_interface_handle iface = uaa->iface;
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201 usb_endpoint_descriptor_t *ed;
202 int size;
203 void *desc;
204 usbd_status err;
1550dfd9 205
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206 sc->sc_udev = uaa->device;
207 sc->sc_iface = iface;
e785a5d9 208 sc->sc_dev = self;
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209
210 ed = usbd_interface2endpoint_descriptor(iface, 0);
211 if (ed == NULL) {
e3869ec7 212 kprintf("%s: could not read endpoint descriptor\n",
6ed427ca 213 device_get_nameunit(sc->sc_dev));
984263bc 214 sc->sc_dying = 1;
e785a5d9 215 return ENXIO;
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216 }
217
218 DPRINTFN(10,("uhid_attach: bLength=%d bDescriptorType=%d "
219 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d"
220 " bInterval=%d\n",
1550dfd9 221 ed->bLength, ed->bDescriptorType,
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222 ed->bEndpointAddress & UE_ADDR,
223 UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out",
224 ed->bmAttributes & UE_XFERTYPE,
225 UGETW(ed->wMaxPacketSize), ed->bInterval));
226
227 if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN ||
228 (ed->bmAttributes & UE_XFERTYPE) != UE_INTERRUPT) {
6ed427ca 229 kprintf("%s: unexpected endpoint\n", device_get_nameunit(sc->sc_dev));
984263bc 230 sc->sc_dying = 1;
e785a5d9 231 return ENXIO;
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232 }
233
234 sc->sc_ep_addr = ed->bEndpointAddress;
235
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HT
236 /* The report descriptor for the Wacom Graphire is broken. */
237 if (uaa->vendor == 0x056a && uaa->product == 0x0010 /* &&
1550dfd9 238 uaa->revision == 0x???? */) { /* XXX should use revision */
1550dfd9 239 size = sizeof uhid_graphire_report_descr;
efda3bd0 240 desc = kmalloc(size, M_USBDEV, M_INTWAIT);
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241 err = USBD_NORMAL_COMPLETION;
242 memcpy(desc, uhid_graphire_report_descr, size);
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243 } else {
244 desc = NULL;
245 err = usbd_read_report_desc(uaa->iface, &desc, &size,M_USBDEV);
246 }
247
984263bc 248 if (err) {
6ed427ca 249 kprintf("%s: no report descriptor\n", device_get_nameunit(sc->sc_dev));
984263bc 250 sc->sc_dying = 1;
e785a5d9 251 return ENXIO;
984263bc 252 }
1550dfd9 253
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254 (void)usbd_set_idle(iface, 0, 0);
255
256 sc->sc_isize = hid_report_size(desc, size, hid_input, &sc->sc_iid);
257 sc->sc_osize = hid_report_size(desc, size, hid_output, &sc->sc_oid);
258 sc->sc_fsize = hid_report_size(desc, size, hid_feature, &sc->sc_fid);
259
260 sc->sc_repdesc = desc;
261 sc->sc_repdesc_size = size;
262
fef8985e 263 make_dev(&uhid_ops, device_get_unit(self),
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264 UID_ROOT, GID_OPERATOR,
265 0644, "uhid%d", device_get_unit(self));
984263bc 266
e785a5d9 267 return 0;
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268}
269
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270static int
271uhid_detach(device_t self)
984263bc 272{
e785a5d9 273 struct uhid_softc *sc = device_get_softc(self);
984263bc 274
984263bc 275 DPRINTF(("uhid_detach: sc=%p\n", sc));
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276
277 sc->sc_dying = 1;
278 if (sc->sc_intrpipe != NULL)
279 usbd_abort_pipe(sc->sc_intrpipe);
280
281 if (sc->sc_state & UHID_OPEN) {
4e01b467 282 crit_enter();
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283 if (--sc->sc_refcnt >= 0) {
284 /* Wake everyone */
285 wakeup(&sc->sc_q);
286 /* Wait for processes to go away. */
2939c544 287 usb_detach_wait(sc->sc_dev);
984263bc 288 }
4e01b467 289 crit_exit();
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290 }
291
cd29885a 292 dev_ops_remove_minor(&uhid_ops, device_get_unit(self));
984263bc 293
1550dfd9 294 if (sc->sc_repdesc)
efda3bd0 295 kfree(sc->sc_repdesc, M_USBDEV);
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296
297 return (0);
298}
299
300void
301uhid_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status)
302{
303 struct uhid_softc *sc = addr;
304
305#ifdef USB_DEBUG
306 if (uhiddebug > 5) {
307 u_int32_t cc, i;
1550dfd9 308
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309 usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL);
310 DPRINTF(("uhid_intr: status=%d cc=%d\n", status, cc));
311 DPRINTF(("uhid_intr: data ="));
312 for (i = 0; i < cc; i++)
313 DPRINTF((" %02x", sc->sc_ibuf[i]));
314 DPRINTF(("\n"));
315 }
316#endif
317
318 if (status == USBD_CANCELLED)
319 return;
320
321 if (status != USBD_NORMAL_COMPLETION) {
322 DPRINTF(("uhid_intr: status=%d\n", status));
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323 if (status == USBD_STALLED)
324 sc->sc_state |= UHID_NEEDCLEAR;
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325 return;
326 }
327
328 (void) b_to_q(sc->sc_ibuf, sc->sc_isize, &sc->sc_q);
1550dfd9 329
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330 if (sc->sc_state & UHID_ASLP) {
331 sc->sc_state &= ~UHID_ASLP;
1550dfd9 332 DPRINTFN(5, ("uhid_intr: waking %p\n", &sc->sc_q));
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333 wakeup(&sc->sc_q);
334 }
5b22f1a7 335 KNOTE(&sc->sc_rkq.ki_note, 0);
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336 if (sc->sc_async != NULL) {
337 DPRINTFN(3, ("uhid_intr: sending SIGIO %p\n", sc->sc_async));
84204577 338 ksignal(sc->sc_async, SIGIO);
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339 }
340}
341
342int
fef8985e 343uhidopen(struct dev_open_args *ap)
984263bc 344{
b13267a5 345 cdev_t dev = ap->a_head.a_dev;
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346 struct uhid_softc *sc;
347 usbd_status err;
984263bc 348
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349 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
350 if (sc == NULL)
351 return (ENXIO);
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352
353 DPRINTF(("uhidopen: sc=%p\n", sc));
354
355 if (sc->sc_dying)
356 return (ENXIO);
357
358 if (sc->sc_state & UHID_OPEN)
359 return (EBUSY);
360 sc->sc_state |= UHID_OPEN;
361
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HT
362 if ((clist_alloc_cblocks(&sc->sc_q, UHID_BSIZE,
363 UHID_BSIZE), 0) == -1) {
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364 sc->sc_state &= ~UHID_OPEN;
365 return (ENOMEM);
366 }
367
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368 sc->sc_ibuf = kmalloc(sc->sc_isize, M_USBDEV, M_WAITOK);
369 sc->sc_obuf = kmalloc(sc->sc_osize, M_USBDEV, M_WAITOK);
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370
371 /* Set up interrupt pipe. */
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372 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr,
373 USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc, sc->sc_ibuf,
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374 sc->sc_isize, uhid_intr, USBD_DEFAULT_INTERVAL);
375 if (err) {
376 DPRINTF(("uhidopen: usbd_open_pipe_intr failed, "
377 "error=%d\n",err));
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MD
378 kfree(sc->sc_ibuf, M_USBDEV);
379 kfree(sc->sc_obuf, M_USBDEV);
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380 sc->sc_ibuf = sc->sc_obuf = NULL;
381
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382 sc->sc_state &= ~UHID_OPEN;
383 return (EIO);
384 }
385
386 sc->sc_state &= ~UHID_IMMED;
387
388 sc->sc_async = 0;
389
390 return (0);
391}
392
393int
fef8985e 394uhidclose(struct dev_close_args *ap)
984263bc 395{
b13267a5 396 cdev_t dev = ap->a_head.a_dev;
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397 struct uhid_softc *sc;
398
1e089e7e 399 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
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400
401 DPRINTF(("uhidclose: sc=%p\n", sc));
402
403 /* Disable interrupts. */
404 usbd_abort_pipe(sc->sc_intrpipe);
405 usbd_close_pipe(sc->sc_intrpipe);
406 sc->sc_intrpipe = 0;
407
408 ndflush(&sc->sc_q, sc->sc_q.c_cc);
375a9af6 409 clist_free_cblocks(&sc->sc_q);
984263bc 410
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MD
411 kfree(sc->sc_ibuf, M_USBDEV);
412 kfree(sc->sc_obuf, M_USBDEV);
1550dfd9 413 sc->sc_ibuf = sc->sc_obuf = NULL;
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414
415 sc->sc_state &= ~UHID_OPEN;
416
417 sc->sc_async = 0;
418
419 return (0);
420}
421
422int
423uhid_do_read(struct uhid_softc *sc, struct uio *uio, int flag)
424{
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425 int error = 0;
426 size_t length;
427 u_char buffer[UHID_CHUNK];
428 usbd_status err;
429
430 DPRINTFN(1, ("uhidread\n"));
431 if (sc->sc_state & UHID_IMMED) {
432 DPRINTFN(1, ("uhidread immed\n"));
1550dfd9 433
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434 err = usbd_get_report(sc->sc_iface, UHID_INPUT_REPORT,
435 sc->sc_iid, buffer, sc->sc_isize);
436 if (err)
437 return (EIO);
438 return (uiomove(buffer, sc->sc_isize, uio));
439 }
440
4e01b467 441 crit_enter();
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442 while (sc->sc_q.c_cc == 0) {
443 if (flag & IO_NDELAY) {
4e01b467 444 crit_exit();
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445 return (EWOULDBLOCK);
446 }
447 sc->sc_state |= UHID_ASLP;
1550dfd9 448 DPRINTFN(5, ("uhidread: sleep on %p\n", &sc->sc_q));
377d4740 449 error = tsleep(&sc->sc_q, PCATCH, "uhidrea", 0);
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450 DPRINTFN(5, ("uhidread: woke, error=%d\n", error));
451 if (sc->sc_dying)
452 error = EIO;
453 if (error) {
454 sc->sc_state &= ~UHID_ASLP;
455 break;
456 }
457 if (sc->sc_state & UHID_NEEDCLEAR) {
458 DPRINTFN(-1,("uhidread: clearing stall\n"));
459 sc->sc_state &= ~UHID_NEEDCLEAR;
460 usbd_clear_endpoint_stall(sc->sc_intrpipe);
461 }
462 }
4e01b467 463 crit_exit();
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464
465 /* Transfer as many chunks as possible. */
466 while (sc->sc_q.c_cc > 0 && uio->uio_resid > 0 && !error) {
e54488bb 467 length = szmin(sc->sc_q.c_cc, uio->uio_resid);
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468 if (length > sizeof(buffer))
469 length = sizeof(buffer);
470
471 /* Remove a small chunk from the input queue. */
472 (void) q_to_b(&sc->sc_q, buffer, length);
473 DPRINTFN(5, ("uhidread: got %lu chars\n", (u_long)length));
474
475 /* Copy the data to the user process. */
476 if ((error = uiomove(buffer, length, uio)) != 0)
477 break;
478 }
479
480 return (error);
481}
482
483int
fef8985e 484uhidread(struct dev_read_args *ap)
984263bc 485{
b13267a5 486 cdev_t dev = ap->a_head.a_dev;
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487 struct uhid_softc *sc;
488 int error;
489
1e089e7e 490 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
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491
492 sc->sc_refcnt++;
fef8985e 493 error = uhid_do_read(sc, ap->a_uio, ap->a_ioflag);
984263bc 494 if (--sc->sc_refcnt < 0)
2939c544 495 usb_detach_wakeup(sc->sc_dev);
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496 return (error);
497}
498
499int
500uhid_do_write(struct uhid_softc *sc, struct uio *uio, int flag)
501{
502 int error;
503 int size;
504 usbd_status err;
505
506 DPRINTFN(1, ("uhidwrite\n"));
1550dfd9 507
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508 if (sc->sc_dying)
509 return (EIO);
510
511 size = sc->sc_osize;
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512 if (uio->uio_resid != size)
513 return (EINVAL);
514 error = uiomove(sc->sc_obuf, size, uio);
515 if (!error) {
516 if (sc->sc_oid)
517 err = usbd_set_report(sc->sc_iface, UHID_OUTPUT_REPORT,
518 sc->sc_obuf[0], sc->sc_obuf+1, size-1);
519 else
520 err = usbd_set_report(sc->sc_iface, UHID_OUTPUT_REPORT,
521 0, sc->sc_obuf, size);
522 if (err)
523 error = EIO;
524 }
525
526 return (error);
527}
528
529int
fef8985e 530uhidwrite(struct dev_write_args *ap)
984263bc 531{
b13267a5 532 cdev_t dev = ap->a_head.a_dev;
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533 struct uhid_softc *sc;
534 int error;
535
1e089e7e 536 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
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537
538 sc->sc_refcnt++;
fef8985e 539 error = uhid_do_write(sc, ap->a_uio, ap->a_ioflag);
984263bc 540 if (--sc->sc_refcnt < 0)
2939c544 541 usb_detach_wakeup(sc->sc_dev);
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542 return (error);
543}
544
545int
fef8985e 546uhid_do_ioctl(struct uhid_softc *sc, u_long cmd, caddr_t addr, int flag)
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MD
547{
548 struct usb_ctl_report_desc *rd;
549 struct usb_ctl_report *re;
550 int size, id;
551 usbd_status err;
552
553 DPRINTFN(2, ("uhidioctl: cmd=%lx\n", cmd));
554
555 if (sc->sc_dying)
556 return (EIO);
557
558 switch (cmd) {
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559 case FIOASYNC:
560 if (*(int *)addr) {
561 if (sc->sc_async != NULL)
562 return (EBUSY);
fef8985e 563 sc->sc_async = curproc;
1550dfd9 564 DPRINTF(("uhid_do_ioctl: FIOASYNC %p\n", sc->sc_async));
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MD
565 } else
566 sc->sc_async = NULL;
567 break;
568
569 /* XXX this is not the most general solution. */
570 case TIOCSPGRP:
571 if (sc->sc_async == NULL)
572 return (EINVAL);
573 if (*(int *)addr != sc->sc_async->p_pgid)
574 return (EPERM);
575 break;
576
577 case USB_GET_REPORT_DESC:
578 rd = (struct usb_ctl_report_desc *)addr;
579 size = min(sc->sc_repdesc_size, sizeof rd->ucrd_data);
580 rd->ucrd_size = size;
581 memcpy(rd->ucrd_data, sc->sc_repdesc, size);
582 break;
583
584 case USB_SET_IMMED:
585 if (*(int *)addr) {
586 /* XXX should read into ibuf, but does it matter? */
587 err = usbd_get_report(sc->sc_iface, UHID_INPUT_REPORT,
588 sc->sc_iid, sc->sc_ibuf, sc->sc_isize);
589 if (err)
590 return (EOPNOTSUPP);
591
592 sc->sc_state |= UHID_IMMED;
593 } else
594 sc->sc_state &= ~UHID_IMMED;
595 break;
596
597 case USB_GET_REPORT:
598 re = (struct usb_ctl_report *)addr;
599 switch (re->ucr_report) {
600 case UHID_INPUT_REPORT:
601 size = sc->sc_isize;
602 id = sc->sc_iid;
603 break;
604 case UHID_OUTPUT_REPORT:
605 size = sc->sc_osize;
606 id = sc->sc_oid;
607 break;
608 case UHID_FEATURE_REPORT:
609 size = sc->sc_fsize;
610 id = sc->sc_fid;
611 break;
612 default:
613 return (EINVAL);
614 }
615 err = usbd_get_report(sc->sc_iface, re->ucr_report, id, re->ucr_data,
616 size);
617 if (err)
618 return (EIO);
619 break;
620
621 case USB_SET_REPORT:
622 re = (struct usb_ctl_report *)addr;
623 switch (re->ucr_report) {
624 case UHID_INPUT_REPORT:
625 size = sc->sc_isize;
626 id = sc->sc_iid;
627 break;
628 case UHID_OUTPUT_REPORT:
629 size = sc->sc_osize;
630 id = sc->sc_oid;
631 break;
632 case UHID_FEATURE_REPORT:
633 size = sc->sc_fsize;
634 id = sc->sc_fid;
635 break;
636 default:
637 return (EINVAL);
638 }
639 err = usbd_set_report(sc->sc_iface, re->ucr_report, id, re->ucr_data,
640 size);
641 if (err)
642 return (EIO);
643 break;
644
1550dfd9
MD
645 case USB_GET_REPORT_ID:
646 *(int *)addr = 0; /* XXX: we only support reportid 0? */
647 break;
648
984263bc
MD
649 default:
650 return (EINVAL);
651 }
652 return (0);
653}
654
655int
fef8985e 656uhidioctl(struct dev_ioctl_args *ap)
984263bc 657{
b13267a5 658 cdev_t dev = ap->a_head.a_dev;
984263bc
MD
659 struct uhid_softc *sc;
660 int error;
661
1e089e7e 662 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
984263bc
MD
663
664 sc->sc_refcnt++;
fef8985e 665 error = uhid_do_ioctl(sc, ap->a_cmd, ap->a_data, ap->a_fflag);
984263bc 666 if (--sc->sc_refcnt < 0)
2939c544 667 usb_detach_wakeup(sc->sc_dev);
984263bc
MD
668 return (error);
669}
670
96bcde04 671static struct filterops uhidfiltops_read =
4c91dbc9 672 { FILTEROP_ISFD, NULL, uhidfilt_detach, uhidfilt_read };
96bcde04 673static struct filterops uhidfiltops_write =
4c91dbc9 674 { FILTEROP_ISFD, NULL, uhidfilt_detach, uhidfilt_write };
96bcde04
SG
675
676int
677uhidkqfilter(struct dev_kqfilter_args *ap)
678{
679 cdev_t dev = ap->a_head.a_dev;
680 struct knote *kn = ap->a_kn;
681 struct uhid_softc *sc;
682 struct klist *klist;
683
684 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
685
686 if (sc->sc_dying) {
687 ap->a_result = 1;
688 return (0);
689 }
690
691 ap->a_result = 0;
692
693 switch (kn->kn_filter) {
694 case EVFILT_READ:
695 kn->kn_fop = &uhidfiltops_read;
696 kn->kn_hook = (caddr_t)sc;
697 break;
698 case EVFILT_WRITE:
699 kn->kn_fop = &uhidfiltops_write;
700 kn->kn_hook = (caddr_t)sc;
701 break;
702 default:
b287d649 703 ap->a_result = EOPNOTSUPP;
96bcde04
SG
704 return (0);
705 }
706
5b22f1a7
SG
707 klist = &sc->sc_rkq.ki_note;
708 knote_insert(klist, kn);
96bcde04
SG
709
710 return (0);
711}
712
713static void
714uhidfilt_detach(struct knote *kn)
715{
716 cdev_t dev = (cdev_t)kn->kn_hook;
717 struct uhid_softc *sc;
718 struct klist *klist;
719
720 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
721
5b22f1a7
SG
722 klist = &sc->sc_rkq.ki_note;
723 knote_remove(klist, kn);
96bcde04
SG
724}
725
726static int
727uhidfilt_read(struct knote *kn, long hint)
728{
729 cdev_t dev = (cdev_t)kn->kn_hook;
730 struct uhid_softc *sc;
731 int ready = 0;
732
733 sc = devclass_get_softc(uhid_devclass, UHIDUNIT(dev));
734
735 crit_enter();
736 if (sc->sc_q.c_cc > 0)
737 ready = 1;
738 crit_exit();
739
740 return (ready);
741}
742
743static int
744uhidfilt_write(struct knote *kn, long hint)
745{
746 return (1);
747}
748
984263bc 749DRIVER_MODULE(uhid, uhub, uhid_driver, uhid_devclass, usbd_driver_load, 0);
7c070ee7 750