1 /* $NetBSD: uhid.c,v 1.46 2001/11/13 06:24:55 lukem Exp $ */
3 /* Also already merged from NetBSD:
4 * $NetBSD: uhid.c,v 1.54 2002/09/23 05:51:21 simonb Exp $
11 * Copyright (c) 1998 The NetBSD Foundation, Inc.
12 * All rights reserved.
14 * This code is derived from software contributed to The NetBSD Foundation
15 * by Lennart Augustsson (lennart@augustsson.net) at
16 * Carlstedt Research & Technology.
18 * Redistribution and use in source and binary forms, with or without
19 * modification, are permitted provided that the following conditions
21 * 1. Redistributions of source code must retain the above copyright
22 * notice, this list of conditions and the following disclaimer.
23 * 2. Redistributions in binary form must reproduce the above copyright
24 * notice, this list of conditions and the following disclaimer in the
25 * documentation and/or other materials provided with the distribution.
26 * 3. All advertising materials mentioning features or use of this software
27 * must display the following acknowledgement:
28 * This product includes software developed by the NetBSD
29 * Foundation, Inc. and its contributors.
30 * 4. Neither the name of The NetBSD Foundation nor the names of its
31 * contributors may be used to endorse or promote products derived
32 * from this software without specific prior written permission.
34 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
35 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
36 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
37 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
38 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
39 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
40 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
41 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
42 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
43 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
44 * POSSIBILITY OF SUCH DAMAGE.
48 * HID spec: http://www.usb.org/developers/devclass_docs/HID1_11.pdf
51 #include <sys/param.h>
52 #include <sys/systm.h>
53 #include <sys/kernel.h>
55 #include <sys/malloc.h>
56 #if __FreeBSD_version >= 500000
57 #include <sys/mutex.h>
59 #include <sys/signalvar.h>
60 #include <sys/fcntl.h>
61 #if defined(__NetBSD__) || defined(__OpenBSD__)
62 #include <sys/device.h>
63 #include <sys/ioctl.h>
65 #elif defined(__FreeBSD__)
66 #include <sys/ioccom.h>
67 #include <sys/filio.h>
68 #include <sys/module.h>
70 #include <sys/ioccom.h>
74 #if __FreeBSD_version >= 500014
75 #include <sys/selinfo.h>
77 #include <sys/select.h>
81 #include <sys/sysctl.h>
84 #include <dev/usb/usb.h>
85 #include <dev/usb/usbhid.h>
88 #include <dev/usb/usbdi.h>
89 #include <dev/usb/usbdi_util.h>
90 #include <dev/usb/hid.h>
92 /* Replacement report descriptors for devices shipped with broken ones */
93 #include <dev/usb/ugraphire_rdesc.h>
94 #include <dev/usb/uxb360gp_rdesc.h>
96 /* For hid blacklist quirk */
97 #include <dev/usb/usb_quirks.h>
100 #define DPRINTF(x) if (uhiddebug) logprintf x
101 #define DPRINTFN(n,x) if (uhiddebug>(n)) logprintf x
103 SYSCTL_NODE(_hw_usb, OID_AUTO, uhid, CTLFLAG_RW, 0, "USB uhid");
104 SYSCTL_INT(_hw_usb_uhid, OID_AUTO, debug, CTLFLAG_RW,
105 &uhiddebug, 0, "uhid debug level");
108 #define DPRINTFN(n,x)
112 device_t sc_dev; /* base device */
113 usbd_device_handle sc_udev;
114 usbd_interface_handle sc_iface; /* interface */
115 usbd_pipe_handle sc_intrpipe; /* interrupt pipe */
132 struct selinfo sc_rsel;
133 struct proc *sc_async; /* process that wants SIGIO */
134 u_char sc_state; /* driver state */
135 #define UHID_OPEN 0x01 /* device is open */
136 #define UHID_ASLP 0x02 /* waiting for device data */
137 #define UHID_NEEDCLEAR 0x04 /* needs clearing endpoint stall */
138 #define UHID_IMMED 0x08 /* return read data immediately */
143 #if defined(__FreeBSD__)
148 #define UHIDUNIT(dev) (minor(dev))
149 #define UHID_CHUNK 128 /* chunk size for read */
150 #define UHID_BSIZE 1020 /* buffer size */
152 #if defined(__NetBSD__) || defined(__OpenBSD__)
154 #elif defined(__FreeBSD__)
163 static struct cdevsw uhid_cdevsw = {
164 .d_version = D_VERSION,
165 .d_flags = D_NEEDGIANT,
167 .d_close = uhidclose,
169 .d_write = uhidwrite,
170 .d_ioctl = uhidioctl,
173 #if __FreeBSD_version < 500014
179 static void uhid_intr(usbd_xfer_handle, usbd_private_handle,
182 static int uhid_do_read(struct uhid_softc *, struct uio *uio, int);
183 static int uhid_do_write(struct uhid_softc *, struct uio *uio, int);
184 static int uhid_do_ioctl(struct uhid_softc *, u_long, caddr_t, int,
187 USB_DECLARE_DRIVER(uhid);
191 USB_MATCH_START(uhid, uaa);
192 usb_interface_descriptor_t *id;
194 if (uaa->iface == NULL)
195 return (UMATCH_NONE);
196 id = usbd_get_interface_descriptor(uaa->iface);
198 return (UMATCH_NONE);
199 if (id->bInterfaceClass != UICLASS_HID) {
200 /* The Xbox 360 gamepad doesn't use the HID class. */
201 if (id->bInterfaceClass != UICLASS_VENDOR ||
202 id->bInterfaceSubClass != UISUBCLASS_XBOX360_CONTROLLER ||
203 id->bInterfaceProtocol != UIPROTO_XBOX360_GAMEPAD)
204 return (UMATCH_NONE);
206 if (usbd_get_quirks(uaa->device)->uq_flags & UQ_HID_IGNORE)
207 return (UMATCH_NONE);
210 return (uaa->matchlvl);
213 return (UMATCH_IFACECLASS_GENERIC);
218 USB_ATTACH_START(uhid, sc, uaa);
219 usbd_interface_handle iface = uaa->iface;
220 usb_interface_descriptor_t *id;
221 usb_endpoint_descriptor_t *ed;
228 sc->sc_udev = uaa->device;
229 sc->sc_iface = iface;
230 id = usbd_get_interface_descriptor(iface);
231 usbd_devinfo(uaa->device, USBD_SHOW_INTERFACE_CLASS, devinfo);
234 ed = usbd_interface2endpoint_descriptor(iface, 0);
236 printf("%s: could not read endpoint descriptor\n",
237 device_get_nameunit(sc->sc_dev));
239 USB_ATTACH_ERROR_RETURN;
242 DPRINTFN(10,("uhid_attach: bLength=%d bDescriptorType=%d "
243 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d"
245 ed->bLength, ed->bDescriptorType,
246 ed->bEndpointAddress & UE_ADDR,
247 UE_GET_DIR(ed->bEndpointAddress)==UE_DIR_IN? "in" : "out",
248 ed->bmAttributes & UE_XFERTYPE,
249 UGETW(ed->wMaxPacketSize), ed->bInterval));
251 if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN ||
252 (ed->bmAttributes & UE_XFERTYPE) != UE_INTERRUPT) {
253 printf("%s: unexpected endpoint\n", device_get_nameunit(sc->sc_dev));
255 USB_ATTACH_ERROR_RETURN;
258 sc->sc_ep_addr = ed->bEndpointAddress;
261 if (uaa->vendor == USB_VENDOR_WACOM) {
262 /* The report descriptor for the Wacom Graphire is broken. */
263 if (uaa->product == USB_PRODUCT_WACOM_GRAPHIRE) {
264 size = sizeof uhid_graphire_report_descr;
265 descptr = uhid_graphire_report_descr;
266 } else if (uaa->product == USB_PRODUCT_WACOM_GRAPHIRE3_4X5) {
267 static uByte reportbuf[] = {2, 2, 2};
270 * The Graphire3 needs 0x0202 to be written to
271 * feature report ID 2 before it'll start
272 * returning digitizer data.
274 usbd_set_report(uaa->iface, UHID_FEATURE_REPORT, 2,
275 &reportbuf, sizeof reportbuf);
277 size = sizeof uhid_graphire3_4x5_report_descr;
278 descptr = uhid_graphire3_4x5_report_descr;
280 } else if (id->bInterfaceClass == UICLASS_VENDOR &&
281 id->bInterfaceSubClass == UISUBCLASS_XBOX360_CONTROLLER &&
282 id->bInterfaceProtocol == UIPROTO_XBOX360_GAMEPAD) {
283 static uByte reportbuf[] = {1, 3, 0};
285 /* The LEDs on the gamepad are blinking by default, turn off. */
286 usbd_set_report(uaa->iface, UHID_OUTPUT_REPORT, 0,
287 &reportbuf, sizeof reportbuf);
289 /* The Xbox 360 gamepad has no report descriptor. */
290 size = sizeof uhid_xb360gp_report_descr;
291 descptr = uhid_xb360gp_report_descr;
295 desc = malloc(size, M_USBDEV, M_NOWAIT);
299 err = USBD_NORMAL_COMPLETION;
300 memcpy(desc, descptr, size);
304 err = usbd_read_report_desc(uaa->iface, &desc, &size,M_USBDEV);
308 printf("%s: no report descriptor\n", device_get_nameunit(sc->sc_dev));
310 USB_ATTACH_ERROR_RETURN;
313 (void)usbd_set_idle(iface, 0, 0);
315 sc->sc_isize = hid_report_size(desc, size, hid_input, &sc->sc_iid);
316 sc->sc_osize = hid_report_size(desc, size, hid_output, &sc->sc_oid);
317 sc->sc_fsize = hid_report_size(desc, size, hid_feature, &sc->sc_fid);
319 sc->sc_repdesc = desc;
320 sc->sc_repdesc_size = size;
322 #if defined(__FreeBSD__)
323 sc->dev = make_dev(&uhid_cdevsw, device_get_unit(self),
324 UID_ROOT, GID_OPERATOR,
325 0644, "uhid%d", device_get_unit(self));
328 USB_ATTACH_SUCCESS_RETURN;
331 #if defined(__NetBSD__) || defined(__OpenBSD__)
333 uhid_activate(device_t self, enum devact act)
335 struct uhid_softc *sc = (struct uhid_softc *)self;
341 case DVACT_DEACTIVATE:
351 USB_DETACH_START(uhid, sc);
353 #if defined(__NetBSD__) || defined(__OpenBSD__)
357 #if defined(__NetBSD__) || defined(__OpenBSD__)
358 DPRINTF(("uhid_detach: sc=%p flags=%d\n", sc, flags));
360 DPRINTF(("uhid_detach: sc=%p\n", sc));
364 if (sc->sc_intrpipe != NULL)
365 usbd_abort_pipe(sc->sc_intrpipe);
367 if (sc->sc_state & UHID_OPEN) {
369 if (--sc->sc_refcnt >= 0) {
372 /* Wait for processes to go away. */
373 usb_detach_wait(USBDEV(sc->sc_dev));
378 #if defined(__NetBSD__) || defined(__OpenBSD__)
379 /* locate the major number */
380 for (maj = 0; maj < nchrdev; maj++)
381 if (cdevsw[maj].d_open == uhidopen)
384 /* Nuke the vnodes for any open instances (calls close). */
386 vdevgone(maj, mn, mn, VCHR);
387 #elif defined(__FreeBSD__)
388 destroy_dev(sc->dev);
392 free(sc->sc_repdesc, M_USBDEV);
398 uhid_intr(usbd_xfer_handle xfer, usbd_private_handle addr, usbd_status status)
400 struct uhid_softc *sc = addr;
406 usbd_get_xfer_status(xfer, NULL, NULL, &cc, NULL);
407 DPRINTF(("uhid_intr: status=%d cc=%d\n", status, cc));
408 DPRINTF(("uhid_intr: data ="));
409 for (i = 0; i < cc; i++)
410 DPRINTF((" %02x", sc->sc_ibuf[i]));
415 if (status == USBD_CANCELLED)
418 if (status != USBD_NORMAL_COMPLETION) {
419 DPRINTF(("uhid_intr: status=%d\n", status));
420 if (status == USBD_STALLED)
421 sc->sc_state |= UHID_NEEDCLEAR;
425 (void) b_to_q(sc->sc_ibuf, sc->sc_isize, &sc->sc_q);
427 if (sc->sc_state & UHID_ASLP) {
428 sc->sc_state &= ~UHID_ASLP;
429 DPRINTFN(5, ("uhid_intr: waking %p\n", &sc->sc_q));
432 selwakeuppri(&sc->sc_rsel, PZERO);
433 if (sc->sc_async != NULL) {
434 DPRINTFN(3, ("uhid_intr: sending SIGIO %p\n", sc->sc_async));
435 PROC_LOCK(sc->sc_async);
436 psignal(sc->sc_async, SIGIO);
437 PROC_UNLOCK(sc->sc_async);
442 uhidopen(struct cdev *dev, int flag, int mode, usb_proc_ptr p)
444 struct uhid_softc *sc;
447 USB_GET_SC_OPEN(uhid, UHIDUNIT(dev), sc);
449 DPRINTF(("uhidopen: sc=%p\n", sc));
454 if (sc->sc_state & UHID_OPEN)
456 sc->sc_state |= UHID_OPEN;
458 if (clalloc(&sc->sc_q, UHID_BSIZE, 0) == -1) {
459 sc->sc_state &= ~UHID_OPEN;
463 sc->sc_ibuf = malloc(sc->sc_isize, M_USBDEV, M_WAITOK);
464 sc->sc_obuf = malloc(sc->sc_osize, M_USBDEV, M_WAITOK);
466 /* Set up interrupt pipe. */
467 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr,
468 USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc, sc->sc_ibuf,
469 sc->sc_isize, uhid_intr, USBD_DEFAULT_INTERVAL);
471 DPRINTF(("uhidopen: usbd_open_pipe_intr failed, "
473 free(sc->sc_ibuf, M_USBDEV);
474 free(sc->sc_obuf, M_USBDEV);
475 sc->sc_ibuf = sc->sc_obuf = NULL;
477 sc->sc_state &= ~UHID_OPEN;
481 sc->sc_state &= ~UHID_IMMED;
489 uhidclose(struct cdev *dev, int flag, int mode, usb_proc_ptr p)
491 struct uhid_softc *sc;
493 USB_GET_SC(uhid, UHIDUNIT(dev), sc);
495 DPRINTF(("uhidclose: sc=%p\n", sc));
497 /* Disable interrupts. */
498 usbd_abort_pipe(sc->sc_intrpipe);
499 usbd_close_pipe(sc->sc_intrpipe);
502 ndflush(&sc->sc_q, sc->sc_q.c_cc);
505 free(sc->sc_ibuf, M_USBDEV);
506 free(sc->sc_obuf, M_USBDEV);
507 sc->sc_ibuf = sc->sc_obuf = NULL;
509 sc->sc_state &= ~UHID_OPEN;
517 uhid_do_read(struct uhid_softc *sc, struct uio *uio, int flag)
522 u_char buffer[UHID_CHUNK];
525 DPRINTFN(1, ("uhidread\n"));
526 if (sc->sc_state & UHID_IMMED) {
527 DPRINTFN(1, ("uhidread immed\n"));
529 err = usbd_get_report(sc->sc_iface, UHID_INPUT_REPORT,
530 sc->sc_iid, buffer, sc->sc_isize);
533 return (uiomove(buffer, sc->sc_isize, uio));
537 while (sc->sc_q.c_cc == 0) {
538 if (flag & O_NONBLOCK) {
540 return (EWOULDBLOCK);
542 sc->sc_state |= UHID_ASLP;
543 DPRINTFN(5, ("uhidread: sleep on %p\n", &sc->sc_q));
544 error = tsleep(&sc->sc_q, PZERO | PCATCH, "uhidrea", 0);
545 DPRINTFN(5, ("uhidread: woke, error=%d\n", error));
549 sc->sc_state &= ~UHID_ASLP;
552 if (sc->sc_state & UHID_NEEDCLEAR) {
553 DPRINTFN(-1,("uhidread: clearing stall\n"));
554 sc->sc_state &= ~UHID_NEEDCLEAR;
555 usbd_clear_endpoint_stall(sc->sc_intrpipe);
560 /* Transfer as many chunks as possible. */
561 while (sc->sc_q.c_cc > 0 && uio->uio_resid > 0 && !error) {
562 length = min(sc->sc_q.c_cc, uio->uio_resid);
563 if (length > sizeof(buffer))
564 length = sizeof(buffer);
566 /* Remove a small chunk from the input queue. */
567 (void) q_to_b(&sc->sc_q, buffer, length);
568 DPRINTFN(5, ("uhidread: got %lu chars\n", (u_long)length));
570 /* Copy the data to the user process. */
571 if ((error = uiomove(buffer, length, uio)) != 0)
579 uhidread(struct cdev *dev, struct uio *uio, int flag)
581 struct uhid_softc *sc;
584 USB_GET_SC(uhid, UHIDUNIT(dev), sc);
587 error = uhid_do_read(sc, uio, flag);
588 if (--sc->sc_refcnt < 0)
589 usb_detach_wakeup(USBDEV(sc->sc_dev));
594 uhid_do_write(struct uhid_softc *sc, struct uio *uio, int flag)
600 DPRINTFN(1, ("uhidwrite\n"));
607 if (uio->uio_resid != size)
609 error = uiomove(sc->sc_obuf, size, uio);
612 err = usbd_set_report(sc->sc_iface, UHID_OUTPUT_REPORT,
613 sc->sc_obuf[0], sc->sc_obuf+1, size-1);
615 err = usbd_set_report(sc->sc_iface, UHID_OUTPUT_REPORT,
616 0, sc->sc_obuf, size);
625 uhidwrite(struct cdev *dev, struct uio *uio, int flag)
627 struct uhid_softc *sc;
630 USB_GET_SC(uhid, UHIDUNIT(dev), sc);
633 error = uhid_do_write(sc, uio, flag);
634 if (--sc->sc_refcnt < 0)
635 usb_detach_wakeup(USBDEV(sc->sc_dev));
640 uhid_do_ioctl(struct uhid_softc *sc, u_long cmd, caddr_t addr, int flag,
643 struct usb_ctl_report_desc *rd;
644 struct usb_ctl_report *re;
648 DPRINTFN(2, ("uhidioctl: cmd=%lx\n", cmd));
655 /* All handled in the upper FS layer. */
660 if (sc->sc_async != NULL)
662 #if __FreeBSD_version >= 500000
663 sc->sc_async = p->td_proc;
667 DPRINTF(("uhid_do_ioctl: FIOASYNC %p\n", sc->sc_async));
672 /* XXX this is not the most general solution. */
674 if (sc->sc_async == NULL)
676 if (*(int *)addr != sc->sc_async->p_pgid)
680 case USB_GET_REPORT_DESC:
681 rd = (struct usb_ctl_report_desc *)addr;
682 size = min(sc->sc_repdesc_size, sizeof rd->ucrd_data);
683 rd->ucrd_size = size;
684 memcpy(rd->ucrd_data, sc->sc_repdesc, size);
689 /* XXX should read into ibuf, but does it matter? */
690 err = usbd_get_report(sc->sc_iface, UHID_INPUT_REPORT,
691 sc->sc_iid, sc->sc_ibuf, sc->sc_isize);
695 sc->sc_state |= UHID_IMMED;
697 sc->sc_state &= ~UHID_IMMED;
701 re = (struct usb_ctl_report *)addr;
702 switch (re->ucr_report) {
703 case UHID_INPUT_REPORT:
707 case UHID_OUTPUT_REPORT:
711 case UHID_FEATURE_REPORT:
718 err = usbd_get_report(sc->sc_iface, re->ucr_report, id, re->ucr_data,
725 re = (struct usb_ctl_report *)addr;
726 switch (re->ucr_report) {
727 case UHID_INPUT_REPORT:
731 case UHID_OUTPUT_REPORT:
735 case UHID_FEATURE_REPORT:
742 err = usbd_set_report(sc->sc_iface, re->ucr_report, id, re->ucr_data,
748 case USB_GET_REPORT_ID:
749 *(int *)addr = 0; /* XXX: we only support reportid 0? */
759 uhidioctl(struct cdev *dev, u_long cmd, caddr_t addr, int flag, usb_proc_ptr p)
761 struct uhid_softc *sc;
764 USB_GET_SC(uhid, UHIDUNIT(dev), sc);
767 error = uhid_do_ioctl(sc, cmd, addr, flag, p);
768 if (--sc->sc_refcnt < 0)
769 usb_detach_wakeup(USBDEV(sc->sc_dev));
774 uhidpoll(struct cdev *dev, int events, usb_proc_ptr p)
776 struct uhid_softc *sc;
780 USB_GET_SC(uhid, UHIDUNIT(dev), sc);
786 if (events & (POLLOUT | POLLWRNORM))
787 revents |= events & (POLLOUT | POLLWRNORM);
788 if (events & (POLLIN | POLLRDNORM)) {
789 if (sc->sc_q.c_cc > 0)
790 revents |= events & (POLLIN | POLLRDNORM);
792 selrecord(p, &sc->sc_rsel);
799 #if defined(__FreeBSD__)
800 DRIVER_MODULE(uhid, uhub, uhid_driver, uhid_devclass, usbd_driver_load, 0);