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 1.31 2008/08/14 20:55:54 hasso 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>
56 #include <sys/vnode.h>
57 #include <sys/event.h>
58 #include <sys/sysctl.h>
59 #include <sys/thread2.h>
61 #include <bus/usb/usb.h>
62 #include <bus/usb/usbhid.h>
64 #include <bus/usb/usbdi.h>
65 #include <bus/usb/usbdi_util.h>
66 #include <bus/usb/usb_quirks.h>
67 #include <bus/usb/hid.h>
69 #include <machine/mouse.h>
72 #define DPRINTF(x) if (umsdebug) kprintf x
73 #define DPRINTFN(n,x) if (umsdebug>(n)) kprintf x
75 SYSCTL_NODE(_hw_usb, OID_AUTO, ums, CTLFLAG_RW, 0, "USB ums");
76 SYSCTL_INT(_hw_usb_ums, OID_AUTO, debug, CTLFLAG_RW,
77 &umsdebug, 0, "ums debug level");
83 #define UMSUNIT(s) (minor(s)&0x1f)
85 #define MS_TO_TICKS(ms) ((ms) * hz / 1000)
87 #define QUEUE_BUFSIZE 400 /* MUST be divisible by 5 _and_ 8 */
90 device_t sc_dev; /* base device */
91 usbd_interface_handle sc_iface; /* interface */
92 usbd_pipe_handle sc_intrpipe; /* interrupt pipe */
98 struct hid_location sc_loc_x, sc_loc_y, sc_loc_z;
99 struct hid_location *sc_loc_btn;
101 struct callout sc_timeout; /* for spurious button ups */
104 int sc_disconnected; /* device is gone */
106 int flags; /* device configuration */
107 #define UMS_Z 0x01 /* z direction available */
108 #define UMS_SPUR_BUT_UP 0x02 /* spurious button up events */
110 #define MAX_BUTTONS 31 /* must not exceed size of sc_buttons */
112 u_char qbuf[QUEUE_BUFSIZE]; /* must be divisable by 3&4 */
113 u_char dummy[100]; /* XXX just for safety and for now */
114 int qcount, qhead, qtail;
117 mousestatus_t status;
120 # define UMS_ASLEEP 0x01 /* readFromDevice is waiting */
121 struct kqinfo rkq; /* process waiting in select/poll/kq */
124 #define MOUSE_FLAGS_MASK (HIO_CONST|HIO_RELATIVE)
125 #define MOUSE_FLAGS (HIO_RELATIVE)
127 static void ums_intr(usbd_xfer_handle xfer,
128 usbd_private_handle priv, usbd_status status);
130 static void ums_add_to_queue(struct ums_softc *sc,
131 int dx, int dy, int dz, int buttons);
132 static void ums_add_to_queue_timeout(void *priv);
134 static int ums_enable(void *);
135 static void ums_disable(void *);
137 static d_open_t ums_open;
138 static d_close_t ums_close;
139 static d_read_t ums_read;
140 static d_ioctl_t ums_ioctl;
141 static d_kqfilter_t ums_kqfilter;
143 static void ums_filt_detach(struct knote *);
144 static int ums_filt(struct knote *, long);
146 #define UMS_CDEV_MAJOR 111
148 static struct dev_ops ums_ops = {
149 { "ums", UMS_CDEV_MAJOR, D_KQFILTER },
151 .d_close = ums_close,
153 .d_ioctl = ums_ioctl,
154 .d_kqfilter = ums_kqfilter
157 static device_probe_t ums_match;
158 static device_attach_t ums_attach;
159 static device_detach_t ums_detach;
161 static devclass_t ums_devclass;
163 static kobj_method_t ums_methods[] = {
164 DEVMETHOD(device_probe, ums_match),
165 DEVMETHOD(device_attach, ums_attach),
166 DEVMETHOD(device_detach, ums_detach),
170 static driver_t ums_driver = {
173 sizeof(struct ums_softc)
176 MODULE_DEPEND(ums, usb, 1, 1, 1);
179 ums_match(device_t self)
181 struct usb_attach_arg *uaa = device_get_ivars(self);
182 usb_interface_descriptor_t *id;
188 return (UMATCH_NONE);
189 id = usbd_get_interface_descriptor(uaa->iface);
190 if (!id || id->bInterfaceClass != UICLASS_HID)
191 return (UMATCH_NONE);
193 err = usbd_read_report_desc(uaa->iface, &desc, &size, M_TEMP);
195 return (UMATCH_NONE);
197 if (hid_is_collection(desc, size,
198 HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_MOUSE)))
199 ret = UMATCH_IFACECLASS;
208 ums_attach(device_t self)
210 struct ums_softc *sc = device_get_softc(self);
211 struct usb_attach_arg *uaa = device_get_ivars(self);
212 usbd_interface_handle iface = uaa->iface;
213 usb_endpoint_descriptor_t *ed;
219 struct hid_location loc_btn;
221 sc->sc_disconnected = 1;
222 sc->sc_iface = iface;
224 ed = usbd_interface2endpoint_descriptor(iface, 0);
226 kprintf("%s: could not read endpoint descriptor\n",
227 device_get_nameunit(sc->sc_dev));
231 DPRINTFN(10,("ums_attach: bLength=%d bDescriptorType=%d "
232 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d"
234 ed->bLength, ed->bDescriptorType,
235 UE_GET_ADDR(ed->bEndpointAddress),
236 UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN ? "in":"out",
237 UE_GET_XFERTYPE(ed->bmAttributes),
238 UGETW(ed->wMaxPacketSize), ed->bInterval));
240 if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN ||
241 UE_GET_XFERTYPE(ed->bmAttributes) != UE_INTERRUPT) {
242 kprintf("%s: unexpected endpoint\n",
243 device_get_nameunit(sc->sc_dev));
247 err = usbd_read_report_desc(uaa->iface, &desc, &size, M_TEMP);
251 if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_X),
252 hid_input, &sc->sc_loc_x, &flags)) {
253 kprintf("%s: mouse has no X report\n", device_get_nameunit(sc->sc_dev));
256 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
257 kprintf("%s: X report 0x%04x not supported\n",
258 device_get_nameunit(sc->sc_dev), flags);
262 if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Y),
263 hid_input, &sc->sc_loc_y, &flags)) {
264 kprintf("%s: mouse has no Y report\n", device_get_nameunit(sc->sc_dev));
267 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
268 kprintf("%s: Y report 0x%04x not supported\n",
269 device_get_nameunit(sc->sc_dev), flags);
273 /* try to guess the Z activator: first check Z, then WHEEL */
274 if (hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Z),
275 hid_input, &sc->sc_loc_z, &flags) ||
276 hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_WHEEL),
277 hid_input, &sc->sc_loc_z, &flags)) {
278 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
279 sc->sc_loc_z.size = 0; /* Bad Z coord, ignore it */
285 /* figure out the number of buttons */
286 for (i = 1; i <= MAX_BUTTONS; i++)
287 if (!hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
288 hid_input, &loc_btn, 0))
290 sc->nbuttons = i - 1;
291 sc->sc_loc_btn = kmalloc(sizeof(struct hid_location)*sc->nbuttons,
292 M_USBDEV, M_INTWAIT);
294 kprintf("%s: %d buttons%s\n", device_get_nameunit(sc->sc_dev),
295 sc->nbuttons, sc->flags & UMS_Z? " and Z dir." : "");
297 for (i = 1; i <= sc->nbuttons; i++)
298 hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
299 hid_input, &sc->sc_loc_btn[i-1], 0);
301 sc->sc_isize = hid_report_size(desc, size, hid_input, &sc->sc_iid);
302 sc->sc_ibuf = kmalloc(sc->sc_isize, M_USB, M_INTWAIT);
303 sc->sc_ep_addr = ed->bEndpointAddress;
304 sc->sc_disconnected = 0;
308 DPRINTF(("ums_attach: sc=%p\n", sc));
309 DPRINTF(("ums_attach: X\t%d/%d\n",
310 sc->sc_loc_x.pos, sc->sc_loc_x.size));
311 DPRINTF(("ums_attach: Y\t%d/%d\n",
312 sc->sc_loc_y.pos, sc->sc_loc_y.size));
313 if (sc->flags & UMS_Z)
314 DPRINTF(("ums_attach: Z\t%d/%d\n",
315 sc->sc_loc_z.pos, sc->sc_loc_z.size));
316 for (i = 1; i <= sc->nbuttons; i++) {
317 DPRINTF(("ums_attach: B%d\t%d/%d\n",
318 i, sc->sc_loc_btn[i-1].pos,sc->sc_loc_btn[i-1].size));
320 DPRINTF(("ums_attach: size=%d, id=%d\n", sc->sc_isize, sc->sc_iid));
323 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
324 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
326 sc->hw.buttons = sc->nbuttons;
327 sc->hw.iftype = MOUSE_IF_USB;
328 sc->hw.type = MOUSE_MOUSE;
329 sc->hw.model = MOUSE_MODEL_GENERIC;
331 sc->mode.protocol = MOUSE_PROTO_MSC;
333 sc->mode.resolution = MOUSE_RES_UNKNOWN;
334 sc->mode.accelfactor = 0;
336 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
337 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
338 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
340 sc->status.flags = 0;
341 sc->status.button = sc->status.obutton = 0;
342 sc->status.dx = sc->status.dy = sc->status.dz = 0;
344 make_dev(&ums_ops, device_get_unit(self),
345 UID_ROOT, GID_OPERATOR,
346 0644, "ums%d", device_get_unit(self));
348 if (usbd_get_quirks(uaa->device)->uq_flags & UQ_SPUR_BUT_UP) {
349 DPRINTF(("%s: Spurious button up events\n",
350 device_get_nameunit(sc->sc_dev)));
351 sc->flags |= UMS_SPUR_BUT_UP;
359 ums_detach(device_t self)
361 struct ums_softc *sc = device_get_softc(self);
366 DPRINTF(("%s: disconnected\n", device_get_nameunit(self)));
368 kfree(sc->sc_loc_btn, M_USB);
369 kfree(sc->sc_ibuf, M_USB);
371 /* someone waiting for data */
373 * XXX If we wakeup the process here, the device will be gone by
374 * the time the process gets a chance to notice. *_close and friends
375 * should be fixed to handle this case.
376 * Or we should do a delayed detach for this.
377 * Does this delay now force tsleep to exit with an error?
379 if (sc->state & UMS_ASLEEP) {
380 sc->state &= ~UMS_ASLEEP;
383 KNOTE(&sc->rkq.ki_note, 0);
385 dev_ops_remove_minor(&ums_ops, /*-1, */device_get_unit(self));
391 ums_intr(usbd_xfer_handle xfer, usbd_private_handle addr,
394 struct ums_softc *sc = addr;
400 #define UMS_BUT(i) ((i) < 3 ? (((i) + 2) % 3) : (i))
402 DPRINTFN(5, ("ums_intr: sc=%p status=%d\n", sc, status));
403 DPRINTFN(5, ("ums_intr: data = %02x %02x %02x\n",
404 sc->sc_ibuf[0], sc->sc_ibuf[1], sc->sc_ibuf[2]));
406 if (status == USBD_CANCELLED)
409 if (status != USBD_NORMAL_COMPLETION) {
410 DPRINTF(("ums_intr: status=%d\n", status));
411 if (status == USBD_STALLED)
412 usbd_clear_endpoint_stall_async(sc->sc_intrpipe);
418 if (*ibuf++ != sc->sc_iid)
422 dx = hid_get_data(ibuf, &sc->sc_loc_x);
423 dy = -hid_get_data(ibuf, &sc->sc_loc_y);
424 dz = -hid_get_data(ibuf, &sc->sc_loc_z);
425 for (i = 0; i < sc->nbuttons; i++)
426 if (hid_get_data(ibuf, &sc->sc_loc_btn[i]))
427 buttons |= (1 << UMS_BUT(i));
429 if (dx || dy || dz || (sc->flags & UMS_Z)
430 || buttons != sc->status.button) {
431 DPRINTFN(5, ("ums_intr: x:%d y:%d z:%d buttons:0x%x\n",
432 dx, dy, dz, buttons));
434 sc->status.button = buttons;
439 /* Discard data in case of full buffer */
440 if (sc->qcount == sizeof(sc->qbuf)) {
441 DPRINTF(("Buffer full, discarded packet"));
446 * The Qtronix keyboard has a built in PS/2 port for a mouse.
447 * The firmware once in a while posts a spurious button up
448 * event. This event we ignore by doing a timeout for 50 msecs.
449 * If we receive dx=dy=dz=buttons=0 before we add the event to
451 * In any other case we delete the timeout event.
453 if (sc->flags & UMS_SPUR_BUT_UP &&
454 dx == 0 && dy == 0 && dz == 0 && buttons == 0) {
455 callout_reset(&sc->sc_timeout, MS_TO_TICKS(50),
456 ums_add_to_queue_timeout, (void *) sc);
458 callout_stop(&sc->sc_timeout);
459 ums_add_to_queue(sc, dx, dy, dz, buttons);
465 ums_add_to_queue_timeout(void *priv)
467 struct ums_softc *sc = priv;
470 ums_add_to_queue(sc, 0, 0, 0, 0);
475 ums_add_to_queue(struct ums_softc *sc, int dx, int dy, int dz, int buttons)
477 /* Discard data in case of full buffer */
478 if (sc->qhead+sc->mode.packetsize > sizeof(sc->qbuf)) {
479 DPRINTF(("Buffer full, discarded packet"));
483 if (dx > 254) dx = 254;
484 if (dx < -256) dx = -256;
485 if (dy > 254) dy = 254;
486 if (dy < -256) dy = -256;
487 if (dz > 126) dz = 126;
488 if (dz < -128) dz = -128;
490 sc->qbuf[sc->qhead] = sc->mode.syncmask[1];
491 sc->qbuf[sc->qhead] |= ~buttons & MOUSE_MSC_BUTTONS;
492 sc->qbuf[sc->qhead+1] = dx >> 1;
493 sc->qbuf[sc->qhead+2] = dy >> 1;
494 sc->qbuf[sc->qhead+3] = dx - (dx >> 1);
495 sc->qbuf[sc->qhead+4] = dy - (dy >> 1);
497 if (sc->mode.level == 1) {
498 sc->qbuf[sc->qhead+5] = dz >> 1;
499 sc->qbuf[sc->qhead+6] = dz - (dz >> 1);
500 sc->qbuf[sc->qhead+7] = ((~buttons >> 3)
501 & MOUSE_SYS_EXTBUTTONS);
504 sc->qhead += sc->mode.packetsize;
505 sc->qcount += sc->mode.packetsize;
506 /* wrap round at end of buffer */
507 if (sc->qhead >= sizeof(sc->qbuf))
510 /* someone waiting for data */
511 if (sc->state & UMS_ASLEEP) {
512 sc->state &= ~UMS_ASLEEP;
515 KNOTE(&sc->rkq.ki_note, 0);
521 struct ums_softc *sc = v;
530 sc->qhead = sc->qtail = 0;
531 sc->status.flags = 0;
532 sc->status.button = sc->status.obutton = 0;
533 sc->status.dx = sc->status.dy = sc->status.dz = 0;
535 callout_init(&sc->sc_timeout);
537 /* Set up interrupt pipe. */
538 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr,
539 USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc,
540 sc->sc_ibuf, sc->sc_isize, ums_intr,
541 USBD_DEFAULT_INTERVAL);
543 DPRINTF(("ums_enable: usbd_open_pipe_intr failed, error=%d\n",
552 ums_disable(void *priv)
554 struct ums_softc *sc = priv;
556 callout_stop(&sc->sc_timeout);
558 /* Disable interrupts. */
559 usbd_abort_pipe(sc->sc_intrpipe);
560 usbd_close_pipe(sc->sc_intrpipe);
565 DPRINTF(("Discarded %d bytes in queue\n", sc->qcount));
569 ums_open(struct dev_open_args *ap)
571 cdev_t dev = ap->a_head.a_dev;
572 struct ums_softc *sc;
574 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
578 return ums_enable(sc);
582 ums_close(struct dev_close_args *ap)
584 cdev_t dev = ap->a_head.a_dev;
585 struct ums_softc *sc;
587 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
599 ums_read(struct dev_read_args *ap)
601 cdev_t dev = ap->a_head.a_dev;
602 struct uio *uio = ap->a_uio;
603 struct ums_softc *sc;
604 char buf[sizeof(sc->qbuf)];
608 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
616 while (sc->qcount == 0 ) {
617 if (ap->a_ioflag & IO_NDELAY) { /* non-blocking I/O */
622 sc->state |= UMS_ASLEEP; /* blocking I/O */
623 error = tsleep(sc, PCATCH, "umsrea", 0);
627 } else if (!sc->sc_enabled) {
631 /* check whether the device is still there */
633 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
641 * The writer process only extends qcount and qtail. We could copy
642 * them and use the copies to do the copying out of the queue.
645 while ((sc->qcount > 0) && (uio->uio_resid > 0)) {
646 l = (sc->qcount < uio->uio_resid? sc->qcount:uio->uio_resid);
649 if (l > sizeof(sc->qbuf) - sc->qtail) /* transfer till end of buf */
650 l = sizeof(sc->qbuf) - sc->qtail;
653 uiomove(&sc->qbuf[sc->qtail], l, uio);
656 if ( sc->qcount - l < 0 ) {
657 DPRINTF(("qcount below 0, count=%d l=%d\n", sc->qcount, l));
660 sc->qcount -= l; /* remove the bytes from the buffer */
661 sc->qtail = (sc->qtail + l) % sizeof(sc->qbuf);
668 static struct filterops ums_filtops =
669 { 1, NULL, ums_filt_detach, ums_filt };
672 ums_kqfilter(struct dev_kqfilter_args *ap)
674 cdev_t dev = ap->a_head.a_dev;
675 struct knote *kn = ap->a_kn;
676 struct ums_softc *sc;
681 switch (kn->kn_filter) {
683 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
684 kn->kn_fop = &ums_filtops;
685 kn->kn_hook = (caddr_t)sc;
688 ap->a_result = EOPNOTSUPP;
692 klist = &sc->rkq.ki_note;
693 knote_insert(klist, kn);
699 ums_filt_detach(struct knote *kn)
701 struct ums_softc *sc = (struct ums_softc *)kn->kn_hook;
704 klist = &sc->rkq.ki_note;
705 knote_remove(klist, kn);
709 ums_filt(struct knote *kn, long hint)
711 struct ums_softc *sc = (struct ums_softc *)kn->kn_hook;
723 ums_ioctl(struct dev_ioctl_args *ap)
725 cdev_t dev = ap->a_head.a_dev;
726 struct ums_softc *sc;
730 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
736 case MOUSE_GETHWINFO:
737 *(mousehw_t *)ap->a_data = sc->hw;
740 *(mousemode_t *)ap->a_data = sc->mode;
743 mode = *(mousemode_t *)ap->a_data;
745 if (mode.level == -1)
746 /* don't change the current setting */
748 else if ((mode.level < 0) || (mode.level > 1))
752 sc->mode.level = mode.level;
754 if (sc->mode.level == 0) {
755 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
756 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
758 sc->hw.buttons = sc->nbuttons;
759 sc->mode.protocol = MOUSE_PROTO_MSC;
760 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
761 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
762 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
763 } else if (sc->mode.level == 1) {
764 if (sc->nbuttons > MOUSE_SYS_MAXBUTTON)
765 sc->hw.buttons = MOUSE_SYS_MAXBUTTON;
767 sc->hw.buttons = sc->nbuttons;
768 sc->mode.protocol = MOUSE_PROTO_SYSMOUSE;
769 sc->mode.packetsize = MOUSE_SYS_PACKETSIZE;
770 sc->mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
771 sc->mode.syncmask[1] = MOUSE_SYS_SYNC;
774 bzero(sc->qbuf, sizeof(sc->qbuf));
775 sc->qhead = sc->qtail = sc->qcount = 0;
780 *(int *)ap->a_data = sc->mode.level;
783 if (*(int *)ap->a_data < 0 || *(int *)ap->a_data > 1)
787 sc->mode.level = *(int *)ap->a_data;
789 if (sc->mode.level == 0) {
790 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
791 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
793 sc->hw.buttons = sc->nbuttons;
794 sc->mode.protocol = MOUSE_PROTO_MSC;
795 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
796 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
797 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
798 } else if (sc->mode.level == 1) {
799 if (sc->nbuttons > MOUSE_SYS_MAXBUTTON)
800 sc->hw.buttons = MOUSE_SYS_MAXBUTTON;
802 sc->hw.buttons = sc->nbuttons;
803 sc->mode.protocol = MOUSE_PROTO_SYSMOUSE;
804 sc->mode.packetsize = MOUSE_SYS_PACKETSIZE;
805 sc->mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
806 sc->mode.syncmask[1] = MOUSE_SYS_SYNC;
809 bzero(sc->qbuf, sizeof(sc->qbuf));
810 sc->qhead = sc->qtail = sc->qcount = 0;
814 case MOUSE_GETSTATUS: {
815 mousestatus_t *status = (mousestatus_t *) ap->a_data;
818 *status = sc->status;
819 sc->status.obutton = sc->status.button;
820 sc->status.button = 0;
821 sc->status.dx = sc->status.dy = sc->status.dz = 0;
824 if (status->dx || status->dy || status->dz)
825 status->flags |= MOUSE_POSCHANGED;
826 if (status->button != status->obutton)
827 status->flags |= MOUSE_BUTTONSCHANGED;
837 DRIVER_MODULE(ums, uhub, ums_driver, ums_devclass, usbd_driver_load, 0);