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 1.29 2007/11/05 19:09:44 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>
53 #include <sys/ioccom.h>
57 #include <sys/select.h>
58 #include <sys/vnode.h>
60 #include <sys/sysctl.h>
61 #include <sys/thread2.h>
63 #include <bus/usb/usb.h>
64 #include <bus/usb/usbhid.h>
66 #include <bus/usb/usbdi.h>
67 #include <bus/usb/usbdi_util.h>
68 #include <bus/usb/usb_quirks.h>
69 #include <bus/usb/hid.h>
71 #include <machine/mouse.h>
74 #define DPRINTF(x) if (umsdebug) kprintf x
75 #define DPRINTFN(n,x) if (umsdebug>(n)) kprintf x
77 SYSCTL_NODE(_hw_usb, OID_AUTO, ums, CTLFLAG_RW, 0, "USB ums");
78 SYSCTL_INT(_hw_usb_ums, OID_AUTO, debug, CTLFLAG_RW,
79 &umsdebug, 0, "ums debug level");
85 #define UMSUNIT(s) (minor(s)&0x1f)
87 #define MS_TO_TICKS(ms) ((ms) * hz / 1000)
89 #define QUEUE_BUFSIZE 400 /* MUST be divisible by 5 _and_ 8 */
92 device_t sc_dev; /* base device */
93 usbd_interface_handle sc_iface; /* interface */
94 usbd_pipe_handle sc_intrpipe; /* interrupt pipe */
100 struct hid_location sc_loc_x, sc_loc_y, sc_loc_z;
101 struct hid_location *sc_loc_btn;
103 struct callout sc_timeout; /* for spurious button ups */
106 int sc_disconnected; /* device is gone */
108 int flags; /* device configuration */
109 #define UMS_Z 0x01 /* z direction available */
110 #define UMS_SPUR_BUT_UP 0x02 /* spurious button up events */
112 #define MAX_BUTTONS 31 /* must not exceed size of sc_buttons */
114 u_char qbuf[QUEUE_BUFSIZE]; /* must be divisable by 3&4 */
115 u_char dummy[100]; /* XXX just for safety and for now */
116 int qcount, qhead, qtail;
119 mousestatus_t status;
122 # define UMS_ASLEEP 0x01 /* readFromDevice is waiting */
123 # define UMS_SELECT 0x02 /* select is waiting */
124 struct selinfo rsel; /* process waiting in select */
127 #define MOUSE_FLAGS_MASK (HIO_CONST|HIO_RELATIVE)
128 #define MOUSE_FLAGS (HIO_RELATIVE)
130 static void ums_intr(usbd_xfer_handle xfer,
131 usbd_private_handle priv, usbd_status status);
133 static void ums_add_to_queue(struct ums_softc *sc,
134 int dx, int dy, int dz, int buttons);
135 static void ums_add_to_queue_timeout(void *priv);
137 static int ums_enable(void *);
138 static void ums_disable(void *);
140 static d_open_t ums_open;
141 static d_close_t ums_close;
142 static d_read_t ums_read;
143 static d_ioctl_t ums_ioctl;
144 static d_poll_t ums_poll;
146 #define UMS_CDEV_MAJOR 111
148 static struct dev_ops ums_ops = {
149 { "ums", UMS_CDEV_MAJOR, 0 },
151 .d_close = ums_close,
153 .d_ioctl = ums_ioctl,
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_interface_descriptor_t *id;
214 usb_endpoint_descriptor_t *ed;
221 struct hid_location loc_btn;
223 sc->sc_disconnected = 1;
224 sc->sc_iface = iface;
225 id = usbd_get_interface_descriptor(iface);
226 usbd_devinfo(uaa->device, 0, devinfo);
228 device_set_desc_copy(self, devinfo);
229 kprintf("%s: %s, iclass %d/%d\n", device_get_nameunit(sc->sc_dev),
230 devinfo, id->bInterfaceClass, id->bInterfaceSubClass);
231 ed = usbd_interface2endpoint_descriptor(iface, 0);
233 kprintf("%s: could not read endpoint descriptor\n",
234 device_get_nameunit(sc->sc_dev));
238 DPRINTFN(10,("ums_attach: bLength=%d bDescriptorType=%d "
239 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d"
241 ed->bLength, ed->bDescriptorType,
242 UE_GET_ADDR(ed->bEndpointAddress),
243 UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN ? "in":"out",
244 UE_GET_XFERTYPE(ed->bmAttributes),
245 UGETW(ed->wMaxPacketSize), ed->bInterval));
247 if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN ||
248 UE_GET_XFERTYPE(ed->bmAttributes) != UE_INTERRUPT) {
249 kprintf("%s: unexpected endpoint\n",
250 device_get_nameunit(sc->sc_dev));
254 err = usbd_read_report_desc(uaa->iface, &desc, &size, M_TEMP);
258 if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_X),
259 hid_input, &sc->sc_loc_x, &flags)) {
260 kprintf("%s: mouse has no X report\n", device_get_nameunit(sc->sc_dev));
263 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
264 kprintf("%s: X report 0x%04x not supported\n",
265 device_get_nameunit(sc->sc_dev), flags);
269 if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Y),
270 hid_input, &sc->sc_loc_y, &flags)) {
271 kprintf("%s: mouse has no Y report\n", device_get_nameunit(sc->sc_dev));
274 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
275 kprintf("%s: Y report 0x%04x not supported\n",
276 device_get_nameunit(sc->sc_dev), flags);
280 /* try to guess the Z activator: first check Z, then WHEEL */
281 if (hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Z),
282 hid_input, &sc->sc_loc_z, &flags) ||
283 hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_WHEEL),
284 hid_input, &sc->sc_loc_z, &flags)) {
285 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
286 sc->sc_loc_z.size = 0; /* Bad Z coord, ignore it */
292 /* figure out the number of buttons */
293 for (i = 1; i <= MAX_BUTTONS; i++)
294 if (!hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
295 hid_input, &loc_btn, 0))
297 sc->nbuttons = i - 1;
298 sc->sc_loc_btn = kmalloc(sizeof(struct hid_location)*sc->nbuttons,
299 M_USBDEV, M_INTWAIT);
301 kprintf("%s: %d buttons%s\n", device_get_nameunit(sc->sc_dev),
302 sc->nbuttons, sc->flags & UMS_Z? " and Z dir." : "");
304 for (i = 1; i <= sc->nbuttons; i++)
305 hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
306 hid_input, &sc->sc_loc_btn[i-1], 0);
308 sc->sc_isize = hid_report_size(desc, size, hid_input, &sc->sc_iid);
309 sc->sc_ibuf = kmalloc(sc->sc_isize, M_USB, M_INTWAIT);
310 sc->sc_ep_addr = ed->bEndpointAddress;
311 sc->sc_disconnected = 0;
315 DPRINTF(("ums_attach: sc=%p\n", sc));
316 DPRINTF(("ums_attach: X\t%d/%d\n",
317 sc->sc_loc_x.pos, sc->sc_loc_x.size));
318 DPRINTF(("ums_attach: Y\t%d/%d\n",
319 sc->sc_loc_y.pos, sc->sc_loc_y.size));
320 if (sc->flags & UMS_Z)
321 DPRINTF(("ums_attach: Z\t%d/%d\n",
322 sc->sc_loc_z.pos, sc->sc_loc_z.size));
323 for (i = 1; i <= sc->nbuttons; i++) {
324 DPRINTF(("ums_attach: B%d\t%d/%d\n",
325 i, sc->sc_loc_btn[i-1].pos,sc->sc_loc_btn[i-1].size));
327 DPRINTF(("ums_attach: size=%d, id=%d\n", sc->sc_isize, sc->sc_iid));
330 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
331 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
333 sc->hw.buttons = sc->nbuttons;
334 sc->hw.iftype = MOUSE_IF_USB;
335 sc->hw.type = MOUSE_MOUSE;
336 sc->hw.model = MOUSE_MODEL_GENERIC;
338 sc->mode.protocol = MOUSE_PROTO_MSC;
340 sc->mode.resolution = MOUSE_RES_UNKNOWN;
341 sc->mode.accelfactor = 0;
343 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
344 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
345 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
347 sc->status.flags = 0;
348 sc->status.button = sc->status.obutton = 0;
349 sc->status.dx = sc->status.dy = sc->status.dz = 0;
351 dev_ops_add(&ums_ops, -1, device_get_unit(self));
352 make_dev(&ums_ops, 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 device_get_nameunit(sc->sc_dev)));
359 sc->flags |= UMS_SPUR_BUT_UP;
367 ums_detach(device_t self)
369 struct ums_softc *sc = device_get_softc(self);
374 DPRINTF(("%s: disconnected\n", device_get_nameunit(self)));
376 kfree(sc->sc_loc_btn, M_USB);
377 kfree(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 selwakeup(&sc->rsel);
395 dev_ops_remove(&ums_ops, -1, device_get_unit(self));
401 ums_intr(usbd_xfer_handle xfer, usbd_private_handle addr,
404 struct ums_softc *sc = addr;
410 #define UMS_BUT(i) ((i) < 3 ? (((i) + 2) % 3) : (i))
412 DPRINTFN(5, ("ums_intr: sc=%p status=%d\n", sc, status));
413 DPRINTFN(5, ("ums_intr: data = %02x %02x %02x\n",
414 sc->sc_ibuf[0], sc->sc_ibuf[1], sc->sc_ibuf[2]));
416 if (status == USBD_CANCELLED)
419 if (status != USBD_NORMAL_COMPLETION) {
420 DPRINTF(("ums_intr: status=%d\n", status));
421 if (status == USBD_STALLED)
422 usbd_clear_endpoint_stall_async(sc->sc_intrpipe);
428 if (*ibuf++ != sc->sc_iid)
432 dx = hid_get_data(ibuf, &sc->sc_loc_x);
433 dy = -hid_get_data(ibuf, &sc->sc_loc_y);
434 dz = -hid_get_data(ibuf, &sc->sc_loc_z);
435 for (i = 0; i < sc->nbuttons; i++)
436 if (hid_get_data(ibuf, &sc->sc_loc_btn[i]))
437 buttons |= (1 << UMS_BUT(i));
439 if (dx || dy || dz || (sc->flags & UMS_Z)
440 || buttons != sc->status.button) {
441 DPRINTFN(5, ("ums_intr: x:%d y:%d z:%d buttons:0x%x\n",
442 dx, dy, dz, buttons));
444 sc->status.button = buttons;
449 /* Discard data in case of full buffer */
450 if (sc->qcount == sizeof(sc->qbuf)) {
451 DPRINTF(("Buffer full, discarded packet"));
456 * The Qtronix keyboard has a built in PS/2 port for a mouse.
457 * The firmware once in a while posts a spurious button up
458 * event. This event we ignore by doing a timeout for 50 msecs.
459 * If we receive dx=dy=dz=buttons=0 before we add the event to
461 * In any other case we delete the timeout event.
463 if (sc->flags & UMS_SPUR_BUT_UP &&
464 dx == 0 && dy == 0 && dz == 0 && buttons == 0) {
465 callout_reset(&sc->sc_timeout, MS_TO_TICKS(50),
466 ums_add_to_queue_timeout, (void *) sc);
468 callout_stop(&sc->sc_timeout);
469 ums_add_to_queue(sc, dx, dy, dz, buttons);
475 ums_add_to_queue_timeout(void *priv)
477 struct ums_softc *sc = priv;
480 ums_add_to_queue(sc, 0, 0, 0, 0);
485 ums_add_to_queue(struct ums_softc *sc, int dx, int dy, int dz, int buttons)
487 /* Discard data in case of full buffer */
488 if (sc->qhead+sc->mode.packetsize > sizeof(sc->qbuf)) {
489 DPRINTF(("Buffer full, discarded packet"));
493 if (dx > 254) dx = 254;
494 if (dx < -256) dx = -256;
495 if (dy > 254) dy = 254;
496 if (dy < -256) dy = -256;
497 if (dz > 126) dz = 126;
498 if (dz < -128) dz = -128;
500 sc->qbuf[sc->qhead] = sc->mode.syncmask[1];
501 sc->qbuf[sc->qhead] |= ~buttons & MOUSE_MSC_BUTTONS;
502 sc->qbuf[sc->qhead+1] = dx >> 1;
503 sc->qbuf[sc->qhead+2] = dy >> 1;
504 sc->qbuf[sc->qhead+3] = dx - (dx >> 1);
505 sc->qbuf[sc->qhead+4] = dy - (dy >> 1);
507 if (sc->mode.level == 1) {
508 sc->qbuf[sc->qhead+5] = dz >> 1;
509 sc->qbuf[sc->qhead+6] = dz - (dz >> 1);
510 sc->qbuf[sc->qhead+7] = ((~buttons >> 3)
511 & MOUSE_SYS_EXTBUTTONS);
514 sc->qhead += sc->mode.packetsize;
515 sc->qcount += sc->mode.packetsize;
516 /* wrap round at end of buffer */
517 if (sc->qhead >= sizeof(sc->qbuf))
520 /* someone waiting for data */
521 if (sc->state & UMS_ASLEEP) {
522 sc->state &= ~UMS_ASLEEP;
525 if (sc->state & UMS_SELECT) {
526 sc->state &= ~UMS_SELECT;
527 selwakeup(&sc->rsel);
534 struct ums_softc *sc = v;
543 sc->qhead = sc->qtail = 0;
544 sc->status.flags = 0;
545 sc->status.button = sc->status.obutton = 0;
546 sc->status.dx = sc->status.dy = sc->status.dz = 0;
548 callout_init(&sc->sc_timeout);
550 /* Set up interrupt pipe. */
551 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr,
552 USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc,
553 sc->sc_ibuf, sc->sc_isize, ums_intr,
554 USBD_DEFAULT_INTERVAL);
556 DPRINTF(("ums_enable: usbd_open_pipe_intr failed, error=%d\n",
565 ums_disable(void *priv)
567 struct ums_softc *sc = priv;
569 callout_stop(&sc->sc_timeout);
571 /* Disable interrupts. */
572 usbd_abort_pipe(sc->sc_intrpipe);
573 usbd_close_pipe(sc->sc_intrpipe);
578 DPRINTF(("Discarded %d bytes in queue\n", sc->qcount));
582 ums_open(struct dev_open_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));
591 return ums_enable(sc);
595 ums_close(struct dev_close_args *ap)
597 cdev_t dev = ap->a_head.a_dev;
598 struct ums_softc *sc;
600 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
612 ums_read(struct dev_read_args *ap)
614 cdev_t dev = ap->a_head.a_dev;
615 struct uio *uio = ap->a_uio;
616 struct ums_softc *sc;
617 char buf[sizeof(sc->qbuf)];
621 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
629 while (sc->qcount == 0 ) {
630 if (ap->a_ioflag & IO_NDELAY) { /* non-blocking I/O */
635 sc->state |= UMS_ASLEEP; /* blocking I/O */
636 error = tsleep(sc, PCATCH, "umsrea", 0);
640 } else if (!sc->sc_enabled) {
644 /* check whether the device is still there */
646 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
654 * The writer process only extends qcount and qtail. We could copy
655 * them and use the copies to do the copying out of the queue.
658 while ((sc->qcount > 0) && (uio->uio_resid > 0)) {
659 l = (sc->qcount < uio->uio_resid? sc->qcount:uio->uio_resid);
662 if (l > sizeof(sc->qbuf) - sc->qtail) /* transfer till end of buf */
663 l = sizeof(sc->qbuf) - sc->qtail;
666 uiomove(&sc->qbuf[sc->qtail], l, uio);
669 if ( sc->qcount - l < 0 ) {
670 DPRINTF(("qcount below 0, count=%d l=%d\n", sc->qcount, l));
673 sc->qcount -= l; /* remove the bytes from the buffer */
674 sc->qtail = (sc->qtail + l) % sizeof(sc->qbuf);
682 ums_poll(struct dev_poll_args *ap)
684 cdev_t dev = ap->a_head.a_dev;
685 struct ums_softc *sc;
688 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
696 if (ap->a_events & (POLLIN | POLLRDNORM)) {
698 revents = ap->a_events & (POLLIN | POLLRDNORM);
700 sc->state |= UMS_SELECT;
701 selrecord(curthread, &sc->rsel);
705 ap->a_events = revents;
710 ums_ioctl(struct dev_ioctl_args *ap)
712 cdev_t dev = ap->a_head.a_dev;
713 struct ums_softc *sc;
717 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
723 case MOUSE_GETHWINFO:
724 *(mousehw_t *)ap->a_data = sc->hw;
727 *(mousemode_t *)ap->a_data = sc->mode;
730 mode = *(mousemode_t *)ap->a_data;
732 if (mode.level == -1)
733 /* don't change the current setting */
735 else if ((mode.level < 0) || (mode.level > 1))
739 sc->mode.level = mode.level;
741 if (sc->mode.level == 0) {
742 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
743 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
745 sc->hw.buttons = sc->nbuttons;
746 sc->mode.protocol = MOUSE_PROTO_MSC;
747 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
748 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
749 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
750 } else if (sc->mode.level == 1) {
751 if (sc->nbuttons > MOUSE_SYS_MAXBUTTON)
752 sc->hw.buttons = MOUSE_SYS_MAXBUTTON;
754 sc->hw.buttons = sc->nbuttons;
755 sc->mode.protocol = MOUSE_PROTO_SYSMOUSE;
756 sc->mode.packetsize = MOUSE_SYS_PACKETSIZE;
757 sc->mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
758 sc->mode.syncmask[1] = MOUSE_SYS_SYNC;
761 bzero(sc->qbuf, sizeof(sc->qbuf));
762 sc->qhead = sc->qtail = sc->qcount = 0;
767 *(int *)ap->a_data = sc->mode.level;
770 if (*(int *)ap->a_data < 0 || *(int *)ap->a_data > 1)
774 sc->mode.level = *(int *)ap->a_data;
776 if (sc->mode.level == 0) {
777 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
778 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
780 sc->hw.buttons = sc->nbuttons;
781 sc->mode.protocol = MOUSE_PROTO_MSC;
782 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
783 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
784 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
785 } else if (sc->mode.level == 1) {
786 if (sc->nbuttons > MOUSE_SYS_MAXBUTTON)
787 sc->hw.buttons = MOUSE_SYS_MAXBUTTON;
789 sc->hw.buttons = sc->nbuttons;
790 sc->mode.protocol = MOUSE_PROTO_SYSMOUSE;
791 sc->mode.packetsize = MOUSE_SYS_PACKETSIZE;
792 sc->mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
793 sc->mode.syncmask[1] = MOUSE_SYS_SYNC;
796 bzero(sc->qbuf, sizeof(sc->qbuf));
797 sc->qhead = sc->qtail = sc->qcount = 0;
801 case MOUSE_GETSTATUS: {
802 mousestatus_t *status = (mousestatus_t *) ap->a_data;
805 *status = sc->status;
806 sc->status.obutton = sc->status.button;
807 sc->status.button = 0;
808 sc->status.dx = sc->status.dy = sc->status.dz = 0;
811 if (status->dx || status->dy || status->dz)
812 status->flags |= MOUSE_POSCHANGED;
813 if (status->button != status->obutton)
814 status->flags |= MOUSE_BUTTONSCHANGED;
824 DRIVER_MODULE(ums, uhub, ums_driver, ums_devclass, usbd_driver_load, 0);