2 * $FreeBSD: src/sys/dev/usb/ums.c,v 1.64 2003/11/09 09:17:22 tanimura Exp $
3 * $DragonFly: src/sys/dev/usbmisc/ums/ums.c,v 1.15 2005/08/25 18:48:19 drhodus Exp $
7 * Copyright (c) 1998 The NetBSD Foundation, Inc.
10 * This code is derived from software contributed to The NetBSD Foundation
11 * by Lennart Augustsson (lennart@augustsson.net) at
12 * Carlstedt Research & Technology.
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 * 3. All advertising materials mentioning features or use of this software
23 * must display the following acknowledgement:
24 * This product includes software developed by the NetBSD
25 * Foundation, Inc. and its contributors.
26 * 4. Neither the name of The NetBSD Foundation nor the names of its
27 * contributors may be used to endorse or promote products derived
28 * from this software without specific prior written permission.
30 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
31 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
32 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
33 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
34 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
35 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
36 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
37 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
38 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
39 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
40 * POSSIBILITY OF SUCH DAMAGE.
44 * HID spec: http://www.usb.org/developers/data/devclass/hid1_1.pdf
47 #include <sys/param.h>
48 #include <sys/systm.h>
49 #include <sys/kernel.h>
50 #include <sys/malloc.h>
51 #include <sys/module.h>
53 #include <sys/ioccom.h>
57 #if defined(__FreeBSD__) && __FreeBSD_version >= 500014
58 #include <sys/selinfo.h>
60 #include <sys/select.h>
62 #include <sys/vnode.h>
64 #include <sys/sysctl.h>
65 #include <sys/thread2.h>
67 #include <bus/usb/usb.h>
68 #include <bus/usb/usbhid.h>
70 #include <bus/usb/usbdi.h>
71 #include <bus/usb/usbdi_util.h>
72 #include <bus/usb/usbdevs.h>
73 #include <bus/usb/usb_quirks.h>
74 #include <bus/usb/hid.h>
76 #if defined(__FreeBSD__) && __FreeBSD_version >= 500000
77 #include <sys/mouse.h>
79 #include <machine/mouse.h>
83 #define DPRINTF(x) if (umsdebug) logprintf x
84 #define DPRINTFN(n,x) if (umsdebug>(n)) logprintf x
86 SYSCTL_NODE(_hw_usb, OID_AUTO, ums, CTLFLAG_RW, 0, "USB ums");
87 SYSCTL_INT(_hw_usb_ums, OID_AUTO, debug, CTLFLAG_RW,
88 &umsdebug, 0, "ums debug level");
94 #define UMSUNIT(s) (minor(s)&0x1f)
96 #define MS_TO_TICKS(ms) ((ms) * hz / 1000)
98 #define QUEUE_BUFSIZE 400 /* MUST be divisible by 5 _and_ 8 */
101 device_t sc_dev; /* base device */
102 usbd_interface_handle sc_iface; /* interface */
103 usbd_pipe_handle sc_intrpipe; /* interrupt pipe */
109 struct hid_location sc_loc_x, sc_loc_y, sc_loc_z;
110 struct hid_location *sc_loc_btn;
112 struct callout sc_timeout; /* for spurious button ups */
115 int sc_disconnected; /* device is gone */
117 int flags; /* device configuration */
118 #define UMS_Z 0x01 /* z direction available */
119 #define UMS_SPUR_BUT_UP 0x02 /* spurious button up events */
121 #define MAX_BUTTONS 31 /* must not exceed size of sc_buttons */
123 u_char qbuf[QUEUE_BUFSIZE]; /* must be divisable by 3&4 */
124 u_char dummy[100]; /* XXX just for safety and for now */
125 int qcount, qhead, qtail;
128 mousestatus_t status;
131 # define UMS_ASLEEP 0x01 /* readFromDevice is waiting */
132 # define UMS_SELECT 0x02 /* select is waiting */
133 struct selinfo rsel; /* process waiting in select */
136 #define MOUSE_FLAGS_MASK (HIO_CONST|HIO_RELATIVE)
137 #define MOUSE_FLAGS (HIO_RELATIVE)
139 Static void ums_intr(usbd_xfer_handle xfer,
140 usbd_private_handle priv, usbd_status status);
142 Static void ums_add_to_queue(struct ums_softc *sc,
143 int dx, int dy, int dz, int buttons);
144 Static void ums_add_to_queue_timeout(void *priv);
146 Static int ums_enable(void *);
147 Static void ums_disable(void *);
149 Static d_open_t ums_open;
150 Static d_close_t ums_close;
151 Static d_read_t ums_read;
152 Static d_ioctl_t ums_ioctl;
153 Static d_poll_t ums_poll;
155 #define UMS_CDEV_MAJOR 111
157 Static struct cdevsw ums_cdevsw = {
159 /* maj */ UMS_CDEV_MAJOR,
165 /* close */ ums_close,
168 /* ioctl */ ums_ioctl,
171 /* strategy */ nostrategy,
176 USB_DECLARE_DRIVER(ums);
180 USB_MATCH_START(ums, uaa);
181 usb_interface_descriptor_t *id;
187 return (UMATCH_NONE);
188 id = usbd_get_interface_descriptor(uaa->iface);
189 if (!id || id->bInterfaceClass != UICLASS_HID)
190 return (UMATCH_NONE);
192 err = usbd_read_report_desc(uaa->iface, &desc, &size, M_TEMP);
194 return (UMATCH_NONE);
196 if (hid_is_collection(desc, size,
197 HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_MOUSE)))
198 ret = UMATCH_IFACECLASS;
208 USB_ATTACH_START(ums, sc, uaa);
209 usbd_interface_handle iface = uaa->iface;
210 usb_interface_descriptor_t *id;
211 usb_endpoint_descriptor_t *ed;
218 struct hid_location loc_btn;
220 sc->sc_disconnected = 1;
221 sc->sc_iface = iface;
222 id = usbd_get_interface_descriptor(iface);
223 usbd_devinfo(uaa->device, 0, devinfo);
225 printf("%s: %s, iclass %d/%d\n", USBDEVNAME(sc->sc_dev),
226 devinfo, id->bInterfaceClass, id->bInterfaceSubClass);
227 ed = usbd_interface2endpoint_descriptor(iface, 0);
229 printf("%s: could not read endpoint descriptor\n",
230 USBDEVNAME(sc->sc_dev));
231 USB_ATTACH_ERROR_RETURN;
234 DPRINTFN(10,("ums_attach: bLength=%d bDescriptorType=%d "
235 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d"
237 ed->bLength, ed->bDescriptorType,
238 UE_GET_ADDR(ed->bEndpointAddress),
239 UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN ? "in":"out",
240 UE_GET_XFERTYPE(ed->bmAttributes),
241 UGETW(ed->wMaxPacketSize), ed->bInterval));
243 if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN ||
244 UE_GET_XFERTYPE(ed->bmAttributes) != UE_INTERRUPT) {
245 printf("%s: unexpected endpoint\n",
246 USBDEVNAME(sc->sc_dev));
247 USB_ATTACH_ERROR_RETURN;
250 err = usbd_read_report_desc(uaa->iface, &desc, &size, M_TEMP);
252 USB_ATTACH_ERROR_RETURN;
254 if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_X),
255 hid_input, &sc->sc_loc_x, &flags)) {
256 printf("%s: mouse has no X report\n", USBDEVNAME(sc->sc_dev));
257 USB_ATTACH_ERROR_RETURN;
259 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
260 printf("%s: X report 0x%04x not supported\n",
261 USBDEVNAME(sc->sc_dev), flags);
262 USB_ATTACH_ERROR_RETURN;
265 if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Y),
266 hid_input, &sc->sc_loc_y, &flags)) {
267 printf("%s: mouse has no Y report\n", USBDEVNAME(sc->sc_dev));
268 USB_ATTACH_ERROR_RETURN;
270 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
271 printf("%s: Y report 0x%04x not supported\n",
272 USBDEVNAME(sc->sc_dev), flags);
273 USB_ATTACH_ERROR_RETURN;
276 /* try to guess the Z activator: first check Z, then WHEEL */
277 if (hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Z),
278 hid_input, &sc->sc_loc_z, &flags) ||
279 hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_WHEEL),
280 hid_input, &sc->sc_loc_z, &flags)) {
281 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
282 sc->sc_loc_z.size = 0; /* Bad Z coord, ignore it */
288 /* figure out the number of buttons */
289 for (i = 1; i <= MAX_BUTTONS; i++)
290 if (!hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
291 hid_input, &loc_btn, 0))
293 sc->nbuttons = i - 1;
294 sc->sc_loc_btn = malloc(sizeof(struct hid_location)*sc->nbuttons,
295 M_USBDEV, M_INTWAIT);
297 printf("%s: %d buttons%s\n", USBDEVNAME(sc->sc_dev),
298 sc->nbuttons, sc->flags & UMS_Z? " and Z dir." : "");
300 for (i = 1; i <= sc->nbuttons; i++)
301 hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
302 hid_input, &sc->sc_loc_btn[i-1], 0);
304 sc->sc_isize = hid_report_size(desc, size, hid_input, &sc->sc_iid);
305 sc->sc_ibuf = malloc(sc->sc_isize, M_USB, M_INTWAIT);
306 sc->sc_ep_addr = ed->bEndpointAddress;
307 sc->sc_disconnected = 0;
311 DPRINTF(("ums_attach: sc=%p\n", sc));
312 DPRINTF(("ums_attach: X\t%d/%d\n",
313 sc->sc_loc_x.pos, sc->sc_loc_x.size));
314 DPRINTF(("ums_attach: Y\t%d/%d\n",
315 sc->sc_loc_y.pos, sc->sc_loc_y.size));
316 if (sc->flags & UMS_Z)
317 DPRINTF(("ums_attach: Z\t%d/%d\n",
318 sc->sc_loc_z.pos, sc->sc_loc_z.size));
319 for (i = 1; i <= sc->nbuttons; i++) {
320 DPRINTF(("ums_attach: B%d\t%d/%d\n",
321 i, sc->sc_loc_btn[i-1].pos,sc->sc_loc_btn[i-1].size));
323 DPRINTF(("ums_attach: size=%d, id=%d\n", sc->sc_isize, sc->sc_iid));
326 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
327 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
329 sc->hw.buttons = sc->nbuttons;
330 sc->hw.iftype = MOUSE_IF_USB;
331 sc->hw.type = MOUSE_MOUSE;
332 sc->hw.model = MOUSE_MODEL_GENERIC;
334 sc->mode.protocol = MOUSE_PROTO_MSC;
336 sc->mode.resolution = MOUSE_RES_UNKNOWN;
337 sc->mode.accelfactor = 0;
339 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
340 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
341 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
343 sc->status.flags = 0;
344 sc->status.button = sc->status.obutton = 0;
345 sc->status.dx = sc->status.dy = sc->status.dz = 0;
347 #if !defined(__FreeBSD__) && !defined(__DragonFly__)
348 sc->rsel.si_flags = 0;
351 cdevsw_add(&ums_cdevsw, -1, device_get_unit(self));
352 make_dev(&ums_cdevsw, device_get_unit(self),
353 UID_ROOT, GID_OPERATOR,
354 0644, "ums%d", device_get_unit(self));
356 if (usbd_get_quirks(uaa->device)->uq_flags & UQ_SPUR_BUT_UP) {
357 DPRINTF(("%s: Spurious button up events\n",
358 USBDEVNAME(sc->sc_dev)));
359 sc->flags |= UMS_SPUR_BUT_UP;
362 USB_ATTACH_SUCCESS_RETURN;
367 ums_detach(device_t self)
369 struct ums_softc *sc = device_get_softc(self);
374 DPRINTF(("%s: disconnected\n", USBDEVNAME(self)));
376 free(sc->sc_loc_btn, M_USB);
377 free(sc->sc_ibuf, M_USB);
379 /* someone waiting for data */
381 * XXX If we wakeup the process here, the device will be gone by
382 * the time the process gets a chance to notice. *_close and friends
383 * should be fixed to handle this case.
384 * Or we should do a delayed detach for this.
385 * Does this delay now force tsleep to exit with an error?
387 if (sc->state & UMS_ASLEEP) {
388 sc->state &= ~UMS_ASLEEP;
391 if (sc->state & UMS_SELECT) {
392 sc->state &= ~UMS_SELECT;
393 selwakeuppri(&sc->rsel, 0);
395 cdevsw_remove(&ums_cdevsw, -1, device_get_unit(self));
401 ums_intr(xfer, addr, status)
402 usbd_xfer_handle xfer;
403 usbd_private_handle addr;
406 struct ums_softc *sc = addr;
412 #define UMS_BUT(i) ((i) < 3 ? (((i) + 2) % 3) : (i))
414 DPRINTFN(5, ("ums_intr: sc=%p status=%d\n", sc, status));
415 DPRINTFN(5, ("ums_intr: data = %02x %02x %02x\n",
416 sc->sc_ibuf[0], sc->sc_ibuf[1], sc->sc_ibuf[2]));
418 if (status == USBD_CANCELLED)
421 if (status != USBD_NORMAL_COMPLETION) {
422 DPRINTF(("ums_intr: status=%d\n", status));
423 if (status == USBD_STALLED)
424 usbd_clear_endpoint_stall_async(sc->sc_intrpipe);
430 if (*ibuf++ != sc->sc_iid)
434 dx = hid_get_data(ibuf, &sc->sc_loc_x);
435 dy = -hid_get_data(ibuf, &sc->sc_loc_y);
436 dz = -hid_get_data(ibuf, &sc->sc_loc_z);
437 for (i = 0; i < sc->nbuttons; i++)
438 if (hid_get_data(ibuf, &sc->sc_loc_btn[i]))
439 buttons |= (1 << UMS_BUT(i));
441 if (dx || dy || dz || (sc->flags & UMS_Z)
442 || buttons != sc->status.button) {
443 DPRINTFN(5, ("ums_intr: x:%d y:%d z:%d buttons:0x%x\n",
444 dx, dy, dz, buttons));
446 sc->status.button = buttons;
451 /* Discard data in case of full buffer */
452 if (sc->qcount == sizeof(sc->qbuf)) {
453 DPRINTF(("Buffer full, discarded packet"));
458 * The Qtronix keyboard has a built in PS/2 port for a mouse.
459 * The firmware once in a while posts a spurious button up
460 * event. This event we ignore by doing a timeout for 50 msecs.
461 * If we receive dx=dy=dz=buttons=0 before we add the event to
463 * In any other case we delete the timeout event.
465 if (sc->flags & UMS_SPUR_BUT_UP &&
466 dx == 0 && dy == 0 && dz == 0 && buttons == 0) {
467 callout_reset(&sc->sc_timeout, MS_TO_TICKS(50),
468 ums_add_to_queue_timeout, (void *) sc);
470 callout_stop(&sc->sc_timeout);
471 ums_add_to_queue(sc, dx, dy, dz, buttons);
477 ums_add_to_queue_timeout(void *priv)
479 struct ums_softc *sc = priv;
482 ums_add_to_queue(sc, 0, 0, 0, 0);
487 ums_add_to_queue(struct ums_softc *sc, int dx, int dy, int dz, int buttons)
489 /* Discard data in case of full buffer */
490 if (sc->qhead+sc->mode.packetsize > sizeof(sc->qbuf)) {
491 DPRINTF(("Buffer full, discarded packet"));
495 if (dx > 254) dx = 254;
496 if (dx < -256) dx = -256;
497 if (dy > 254) dy = 254;
498 if (dy < -256) dy = -256;
499 if (dz > 126) dz = 126;
500 if (dz < -128) dz = -128;
502 sc->qbuf[sc->qhead] = sc->mode.syncmask[1];
503 sc->qbuf[sc->qhead] |= ~buttons & MOUSE_MSC_BUTTONS;
504 sc->qbuf[sc->qhead+1] = dx >> 1;
505 sc->qbuf[sc->qhead+2] = dy >> 1;
506 sc->qbuf[sc->qhead+3] = dx - (dx >> 1);
507 sc->qbuf[sc->qhead+4] = dy - (dy >> 1);
509 if (sc->mode.level == 1) {
510 sc->qbuf[sc->qhead+5] = dz >> 1;
511 sc->qbuf[sc->qhead+6] = dz - (dz >> 1);
512 sc->qbuf[sc->qhead+7] = ((~buttons >> 3)
513 & MOUSE_SYS_EXTBUTTONS);
516 sc->qhead += sc->mode.packetsize;
517 sc->qcount += sc->mode.packetsize;
518 /* wrap round at end of buffer */
519 if (sc->qhead >= sizeof(sc->qbuf))
522 /* someone waiting for data */
523 if (sc->state & UMS_ASLEEP) {
524 sc->state &= ~UMS_ASLEEP;
527 if (sc->state & UMS_SELECT) {
528 sc->state &= ~UMS_SELECT;
529 selwakeuppri(&sc->rsel, 0);
536 struct ums_softc *sc = v;
545 sc->qhead = sc->qtail = 0;
546 sc->status.flags = 0;
547 sc->status.button = sc->status.obutton = 0;
548 sc->status.dx = sc->status.dy = sc->status.dz = 0;
550 callout_init(&sc->sc_timeout);
552 /* Set up interrupt pipe. */
553 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr,
554 USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc,
555 sc->sc_ibuf, sc->sc_isize, ums_intr,
556 USBD_DEFAULT_INTERVAL);
558 DPRINTF(("ums_enable: usbd_open_pipe_intr failed, error=%d\n",
570 struct ums_softc *sc = priv;
572 callout_stop(&sc->sc_timeout);
574 /* Disable interrupts. */
575 usbd_abort_pipe(sc->sc_intrpipe);
576 usbd_close_pipe(sc->sc_intrpipe);
581 DPRINTF(("Discarded %d bytes in queue\n", sc->qcount));
585 ums_open(dev_t dev, int flag, int fmt, usb_proc_ptr p)
587 struct ums_softc *sc;
589 USB_GET_SC_OPEN(ums, UMSUNIT(dev), sc);
591 return ums_enable(sc);
595 ums_close(dev_t dev, int flag, int fmt, usb_proc_ptr p)
597 struct ums_softc *sc;
599 USB_GET_SC(ums, UMSUNIT(dev), sc);
611 ums_read(dev_t dev, struct uio *uio, int flag)
613 struct ums_softc *sc;
614 char buf[sizeof(sc->qbuf)];
618 USB_GET_SC(ums, UMSUNIT(dev), sc);
626 while (sc->qcount == 0 ) {
627 if (flag & IO_NDELAY) { /* non-blocking I/O */
632 sc->state |= UMS_ASLEEP; /* blocking I/O */
633 error = tsleep(sc, PCATCH, "umsrea", 0);
637 } else if (!sc->sc_enabled) {
641 /* check whether the device is still there */
643 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
651 * The writer process only extends qcount and qtail. We could copy
652 * them and use the copies to do the copying out of the queue.
655 while ((sc->qcount > 0) && (uio->uio_resid > 0)) {
656 l = (sc->qcount < uio->uio_resid? sc->qcount:uio->uio_resid);
659 if (l > sizeof(sc->qbuf) - sc->qtail) /* transfer till end of buf */
660 l = sizeof(sc->qbuf) - sc->qtail;
663 uiomove(&sc->qbuf[sc->qtail], l, uio);
666 if ( sc->qcount - l < 0 ) {
667 DPRINTF(("qcount below 0, count=%d l=%d\n", sc->qcount, l));
670 sc->qcount -= l; /* remove the bytes from the buffer */
671 sc->qtail = (sc->qtail + l) % sizeof(sc->qbuf);
679 ums_poll(dev_t dev, int events, usb_proc_ptr p)
681 struct ums_softc *sc;
684 USB_GET_SC(ums, UMSUNIT(dev), sc);
690 if (events & (POLLIN | POLLRDNORM)) {
692 revents = events & (POLLIN | POLLRDNORM);
694 sc->state |= UMS_SELECT;
695 selrecord(p, &sc->rsel);
704 ums_ioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, usb_proc_ptr p)
706 struct ums_softc *sc;
710 USB_GET_SC(ums, UMSUNIT(dev), sc);
716 case MOUSE_GETHWINFO:
717 *(mousehw_t *)addr = sc->hw;
720 *(mousemode_t *)addr = sc->mode;
723 mode = *(mousemode_t *)addr;
725 if (mode.level == -1)
726 /* don't change the current setting */
728 else if ((mode.level < 0) || (mode.level > 1))
732 sc->mode.level = mode.level;
734 if (sc->mode.level == 0) {
735 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
736 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
738 sc->hw.buttons = sc->nbuttons;
739 sc->mode.protocol = MOUSE_PROTO_MSC;
740 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
741 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
742 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
743 } else if (sc->mode.level == 1) {
744 if (sc->nbuttons > MOUSE_SYS_MAXBUTTON)
745 sc->hw.buttons = MOUSE_SYS_MAXBUTTON;
747 sc->hw.buttons = sc->nbuttons;
748 sc->mode.protocol = MOUSE_PROTO_SYSMOUSE;
749 sc->mode.packetsize = MOUSE_SYS_PACKETSIZE;
750 sc->mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
751 sc->mode.syncmask[1] = MOUSE_SYS_SYNC;
754 bzero(sc->qbuf, sizeof(sc->qbuf));
755 sc->qhead = sc->qtail = sc->qcount = 0;
760 *(int *)addr = sc->mode.level;
763 if (*(int *)addr < 0 || *(int *)addr > 1)
767 sc->mode.level = *(int *)addr;
769 if (sc->mode.level == 0) {
770 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
771 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
773 sc->hw.buttons = sc->nbuttons;
774 sc->mode.protocol = MOUSE_PROTO_MSC;
775 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
776 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
777 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
778 } else if (sc->mode.level == 1) {
779 if (sc->nbuttons > MOUSE_SYS_MAXBUTTON)
780 sc->hw.buttons = MOUSE_SYS_MAXBUTTON;
782 sc->hw.buttons = sc->nbuttons;
783 sc->mode.protocol = MOUSE_PROTO_SYSMOUSE;
784 sc->mode.packetsize = MOUSE_SYS_PACKETSIZE;
785 sc->mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
786 sc->mode.syncmask[1] = MOUSE_SYS_SYNC;
789 bzero(sc->qbuf, sizeof(sc->qbuf));
790 sc->qhead = sc->qtail = sc->qcount = 0;
794 case MOUSE_GETSTATUS: {
795 mousestatus_t *status = (mousestatus_t *) addr;
798 *status = sc->status;
799 sc->status.obutton = sc->status.button;
800 sc->status.button = 0;
801 sc->status.dx = sc->status.dy = sc->status.dz = 0;
804 if (status->dx || status->dy || status->dz)
805 status->flags |= MOUSE_POSCHANGED;
806 if (status->button != status->obutton)
807 status->flags |= MOUSE_BUTTONSCHANGED;
817 DRIVER_MODULE(ums, uhub, ums_driver, ums_devclass, usbd_driver_load, 0);