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/select.h>
57 #include <sys/vnode.h>
59 #include <sys/event.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;
145 static d_kqfilter_t ums_kqfilter;
147 static void ums_filt_detach(struct knote *);
148 static int ums_filt(struct knote *, long);
150 #define UMS_CDEV_MAJOR 111
152 static struct dev_ops ums_ops = {
153 { "ums", UMS_CDEV_MAJOR, D_KQFILTER },
155 .d_close = ums_close,
157 .d_ioctl = ums_ioctl,
159 .d_kqfilter = ums_kqfilter
162 static device_probe_t ums_match;
163 static device_attach_t ums_attach;
164 static device_detach_t ums_detach;
166 static devclass_t ums_devclass;
168 static kobj_method_t ums_methods[] = {
169 DEVMETHOD(device_probe, ums_match),
170 DEVMETHOD(device_attach, ums_attach),
171 DEVMETHOD(device_detach, ums_detach),
175 static driver_t ums_driver = {
178 sizeof(struct ums_softc)
181 MODULE_DEPEND(ums, usb, 1, 1, 1);
184 ums_match(device_t self)
186 struct usb_attach_arg *uaa = device_get_ivars(self);
187 usb_interface_descriptor_t *id;
193 return (UMATCH_NONE);
194 id = usbd_get_interface_descriptor(uaa->iface);
195 if (!id || id->bInterfaceClass != UICLASS_HID)
196 return (UMATCH_NONE);
198 err = usbd_read_report_desc(uaa->iface, &desc, &size, M_TEMP);
200 return (UMATCH_NONE);
202 if (hid_is_collection(desc, size,
203 HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_MOUSE)))
204 ret = UMATCH_IFACECLASS;
213 ums_attach(device_t self)
215 struct ums_softc *sc = device_get_softc(self);
216 struct usb_attach_arg *uaa = device_get_ivars(self);
217 usbd_interface_handle iface = uaa->iface;
218 usb_endpoint_descriptor_t *ed;
224 struct hid_location loc_btn;
226 sc->sc_disconnected = 1;
227 sc->sc_iface = iface;
229 ed = usbd_interface2endpoint_descriptor(iface, 0);
231 kprintf("%s: could not read endpoint descriptor\n",
232 device_get_nameunit(sc->sc_dev));
236 DPRINTFN(10,("ums_attach: bLength=%d bDescriptorType=%d "
237 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d"
239 ed->bLength, ed->bDescriptorType,
240 UE_GET_ADDR(ed->bEndpointAddress),
241 UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN ? "in":"out",
242 UE_GET_XFERTYPE(ed->bmAttributes),
243 UGETW(ed->wMaxPacketSize), ed->bInterval));
245 if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN ||
246 UE_GET_XFERTYPE(ed->bmAttributes) != UE_INTERRUPT) {
247 kprintf("%s: unexpected endpoint\n",
248 device_get_nameunit(sc->sc_dev));
252 err = usbd_read_report_desc(uaa->iface, &desc, &size, M_TEMP);
256 if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_X),
257 hid_input, &sc->sc_loc_x, &flags)) {
258 kprintf("%s: mouse has no X report\n", device_get_nameunit(sc->sc_dev));
261 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
262 kprintf("%s: X report 0x%04x not supported\n",
263 device_get_nameunit(sc->sc_dev), flags);
267 if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Y),
268 hid_input, &sc->sc_loc_y, &flags)) {
269 kprintf("%s: mouse has no Y report\n", device_get_nameunit(sc->sc_dev));
272 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
273 kprintf("%s: Y report 0x%04x not supported\n",
274 device_get_nameunit(sc->sc_dev), flags);
278 /* try to guess the Z activator: first check Z, then WHEEL */
279 if (hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Z),
280 hid_input, &sc->sc_loc_z, &flags) ||
281 hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_WHEEL),
282 hid_input, &sc->sc_loc_z, &flags)) {
283 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
284 sc->sc_loc_z.size = 0; /* Bad Z coord, ignore it */
290 /* figure out the number of buttons */
291 for (i = 1; i <= MAX_BUTTONS; i++)
292 if (!hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
293 hid_input, &loc_btn, 0))
295 sc->nbuttons = i - 1;
296 sc->sc_loc_btn = kmalloc(sizeof(struct hid_location)*sc->nbuttons,
297 M_USBDEV, M_INTWAIT);
299 kprintf("%s: %d buttons%s\n", device_get_nameunit(sc->sc_dev),
300 sc->nbuttons, sc->flags & UMS_Z? " and Z dir." : "");
302 for (i = 1; i <= sc->nbuttons; i++)
303 hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
304 hid_input, &sc->sc_loc_btn[i-1], 0);
306 sc->sc_isize = hid_report_size(desc, size, hid_input, &sc->sc_iid);
307 sc->sc_ibuf = kmalloc(sc->sc_isize, M_USB, M_INTWAIT);
308 sc->sc_ep_addr = ed->bEndpointAddress;
309 sc->sc_disconnected = 0;
313 DPRINTF(("ums_attach: sc=%p\n", sc));
314 DPRINTF(("ums_attach: X\t%d/%d\n",
315 sc->sc_loc_x.pos, sc->sc_loc_x.size));
316 DPRINTF(("ums_attach: Y\t%d/%d\n",
317 sc->sc_loc_y.pos, sc->sc_loc_y.size));
318 if (sc->flags & UMS_Z)
319 DPRINTF(("ums_attach: Z\t%d/%d\n",
320 sc->sc_loc_z.pos, sc->sc_loc_z.size));
321 for (i = 1; i <= sc->nbuttons; i++) {
322 DPRINTF(("ums_attach: B%d\t%d/%d\n",
323 i, sc->sc_loc_btn[i-1].pos,sc->sc_loc_btn[i-1].size));
325 DPRINTF(("ums_attach: size=%d, id=%d\n", sc->sc_isize, sc->sc_iid));
328 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
329 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
331 sc->hw.buttons = sc->nbuttons;
332 sc->hw.iftype = MOUSE_IF_USB;
333 sc->hw.type = MOUSE_MOUSE;
334 sc->hw.model = MOUSE_MODEL_GENERIC;
336 sc->mode.protocol = MOUSE_PROTO_MSC;
338 sc->mode.resolution = MOUSE_RES_UNKNOWN;
339 sc->mode.accelfactor = 0;
341 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
342 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
343 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
345 sc->status.flags = 0;
346 sc->status.button = sc->status.obutton = 0;
347 sc->status.dx = sc->status.dy = sc->status.dz = 0;
349 make_dev(&ums_ops, device_get_unit(self),
350 UID_ROOT, GID_OPERATOR,
351 0644, "ums%d", device_get_unit(self));
353 if (usbd_get_quirks(uaa->device)->uq_flags & UQ_SPUR_BUT_UP) {
354 DPRINTF(("%s: Spurious button up events\n",
355 device_get_nameunit(sc->sc_dev)));
356 sc->flags |= UMS_SPUR_BUT_UP;
364 ums_detach(device_t self)
366 struct ums_softc *sc = device_get_softc(self);
371 DPRINTF(("%s: disconnected\n", device_get_nameunit(self)));
373 kfree(sc->sc_loc_btn, M_USB);
374 kfree(sc->sc_ibuf, M_USB);
376 /* someone waiting for data */
378 * XXX If we wakeup the process here, the device will be gone by
379 * the time the process gets a chance to notice. *_close and friends
380 * should be fixed to handle this case.
381 * Or we should do a delayed detach for this.
382 * Does this delay now force tsleep to exit with an error?
384 if (sc->state & UMS_ASLEEP) {
385 sc->state &= ~UMS_ASLEEP;
388 if (sc->state & UMS_SELECT) {
389 sc->state &= ~UMS_SELECT;
390 selwakeup(&sc->rsel);
392 dev_ops_remove_minor(&ums_ops, /*-1, */device_get_unit(self));
398 ums_intr(usbd_xfer_handle xfer, usbd_private_handle addr,
401 struct ums_softc *sc = addr;
407 #define UMS_BUT(i) ((i) < 3 ? (((i) + 2) % 3) : (i))
409 DPRINTFN(5, ("ums_intr: sc=%p status=%d\n", sc, status));
410 DPRINTFN(5, ("ums_intr: data = %02x %02x %02x\n",
411 sc->sc_ibuf[0], sc->sc_ibuf[1], sc->sc_ibuf[2]));
413 if (status == USBD_CANCELLED)
416 if (status != USBD_NORMAL_COMPLETION) {
417 DPRINTF(("ums_intr: status=%d\n", status));
418 if (status == USBD_STALLED)
419 usbd_clear_endpoint_stall_async(sc->sc_intrpipe);
425 if (*ibuf++ != sc->sc_iid)
429 dx = hid_get_data(ibuf, &sc->sc_loc_x);
430 dy = -hid_get_data(ibuf, &sc->sc_loc_y);
431 dz = -hid_get_data(ibuf, &sc->sc_loc_z);
432 for (i = 0; i < sc->nbuttons; i++)
433 if (hid_get_data(ibuf, &sc->sc_loc_btn[i]))
434 buttons |= (1 << UMS_BUT(i));
436 if (dx || dy || dz || (sc->flags & UMS_Z)
437 || buttons != sc->status.button) {
438 DPRINTFN(5, ("ums_intr: x:%d y:%d z:%d buttons:0x%x\n",
439 dx, dy, dz, buttons));
441 sc->status.button = buttons;
446 /* Discard data in case of full buffer */
447 if (sc->qcount == sizeof(sc->qbuf)) {
448 DPRINTF(("Buffer full, discarded packet"));
453 * The Qtronix keyboard has a built in PS/2 port for a mouse.
454 * The firmware once in a while posts a spurious button up
455 * event. This event we ignore by doing a timeout for 50 msecs.
456 * If we receive dx=dy=dz=buttons=0 before we add the event to
458 * In any other case we delete the timeout event.
460 if (sc->flags & UMS_SPUR_BUT_UP &&
461 dx == 0 && dy == 0 && dz == 0 && buttons == 0) {
462 callout_reset(&sc->sc_timeout, MS_TO_TICKS(50),
463 ums_add_to_queue_timeout, (void *) sc);
465 callout_stop(&sc->sc_timeout);
466 ums_add_to_queue(sc, dx, dy, dz, buttons);
472 ums_add_to_queue_timeout(void *priv)
474 struct ums_softc *sc = priv;
477 ums_add_to_queue(sc, 0, 0, 0, 0);
482 ums_add_to_queue(struct ums_softc *sc, int dx, int dy, int dz, int buttons)
484 /* Discard data in case of full buffer */
485 if (sc->qhead+sc->mode.packetsize > sizeof(sc->qbuf)) {
486 DPRINTF(("Buffer full, discarded packet"));
490 if (dx > 254) dx = 254;
491 if (dx < -256) dx = -256;
492 if (dy > 254) dy = 254;
493 if (dy < -256) dy = -256;
494 if (dz > 126) dz = 126;
495 if (dz < -128) dz = -128;
497 sc->qbuf[sc->qhead] = sc->mode.syncmask[1];
498 sc->qbuf[sc->qhead] |= ~buttons & MOUSE_MSC_BUTTONS;
499 sc->qbuf[sc->qhead+1] = dx >> 1;
500 sc->qbuf[sc->qhead+2] = dy >> 1;
501 sc->qbuf[sc->qhead+3] = dx - (dx >> 1);
502 sc->qbuf[sc->qhead+4] = dy - (dy >> 1);
504 if (sc->mode.level == 1) {
505 sc->qbuf[sc->qhead+5] = dz >> 1;
506 sc->qbuf[sc->qhead+6] = dz - (dz >> 1);
507 sc->qbuf[sc->qhead+7] = ((~buttons >> 3)
508 & MOUSE_SYS_EXTBUTTONS);
511 sc->qhead += sc->mode.packetsize;
512 sc->qcount += sc->mode.packetsize;
513 /* wrap round at end of buffer */
514 if (sc->qhead >= sizeof(sc->qbuf))
517 /* someone waiting for data */
518 if (sc->state & UMS_ASLEEP) {
519 sc->state &= ~UMS_ASLEEP;
522 if (sc->state & UMS_SELECT) {
523 sc->state &= ~UMS_SELECT;
524 selwakeup(&sc->rsel);
531 struct ums_softc *sc = v;
540 sc->qhead = sc->qtail = 0;
541 sc->status.flags = 0;
542 sc->status.button = sc->status.obutton = 0;
543 sc->status.dx = sc->status.dy = sc->status.dz = 0;
545 callout_init(&sc->sc_timeout);
547 /* Set up interrupt pipe. */
548 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr,
549 USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc,
550 sc->sc_ibuf, sc->sc_isize, ums_intr,
551 USBD_DEFAULT_INTERVAL);
553 DPRINTF(("ums_enable: usbd_open_pipe_intr failed, error=%d\n",
562 ums_disable(void *priv)
564 struct ums_softc *sc = priv;
566 callout_stop(&sc->sc_timeout);
568 /* Disable interrupts. */
569 usbd_abort_pipe(sc->sc_intrpipe);
570 usbd_close_pipe(sc->sc_intrpipe);
575 DPRINTF(("Discarded %d bytes in queue\n", sc->qcount));
579 ums_open(struct dev_open_args *ap)
581 cdev_t dev = ap->a_head.a_dev;
582 struct ums_softc *sc;
584 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
588 return ums_enable(sc);
592 ums_close(struct dev_close_args *ap)
594 cdev_t dev = ap->a_head.a_dev;
595 struct ums_softc *sc;
597 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
609 ums_read(struct dev_read_args *ap)
611 cdev_t dev = ap->a_head.a_dev;
612 struct uio *uio = ap->a_uio;
613 struct ums_softc *sc;
614 char buf[sizeof(sc->qbuf)];
618 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
626 while (sc->qcount == 0 ) {
627 if (ap->a_ioflag & 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(struct dev_poll_args *ap)
681 cdev_t dev = ap->a_head.a_dev;
682 struct ums_softc *sc;
685 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
693 if (ap->a_events & (POLLIN | POLLRDNORM)) {
695 revents = ap->a_events & (POLLIN | POLLRDNORM);
697 sc->state |= UMS_SELECT;
698 selrecord(curthread, &sc->rsel);
702 ap->a_events = revents;
706 static struct filterops ums_filtops =
707 { 1, NULL, ums_filt_detach, ums_filt };
710 ums_kqfilter(struct dev_kqfilter_args *ap)
712 cdev_t dev = ap->a_head.a_dev;
713 struct knote *kn = ap->a_kn;
714 struct ums_softc *sc;
719 switch (kn->kn_filter) {
721 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
722 kn->kn_fop = &ums_filtops;
723 kn->kn_hook = (caddr_t)sc;
731 klist = &sc->rsel.si_note;
732 SLIST_INSERT_HEAD(klist, kn, kn_selnext);
739 ums_filt_detach(struct knote *kn)
741 struct ums_softc *sc = (struct ums_softc *)kn->kn_hook;
745 klist = &sc->rsel.si_note;
746 SLIST_REMOVE(klist, kn, knote, kn_selnext);
751 ums_filt(struct knote *kn, long hint)
753 struct ums_softc *sc = (struct ums_softc *)kn->kn_hook;
765 ums_ioctl(struct dev_ioctl_args *ap)
767 cdev_t dev = ap->a_head.a_dev;
768 struct ums_softc *sc;
772 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
778 case MOUSE_GETHWINFO:
779 *(mousehw_t *)ap->a_data = sc->hw;
782 *(mousemode_t *)ap->a_data = sc->mode;
785 mode = *(mousemode_t *)ap->a_data;
787 if (mode.level == -1)
788 /* don't change the current setting */
790 else if ((mode.level < 0) || (mode.level > 1))
794 sc->mode.level = mode.level;
796 if (sc->mode.level == 0) {
797 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
798 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
800 sc->hw.buttons = sc->nbuttons;
801 sc->mode.protocol = MOUSE_PROTO_MSC;
802 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
803 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
804 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
805 } else if (sc->mode.level == 1) {
806 if (sc->nbuttons > MOUSE_SYS_MAXBUTTON)
807 sc->hw.buttons = MOUSE_SYS_MAXBUTTON;
809 sc->hw.buttons = sc->nbuttons;
810 sc->mode.protocol = MOUSE_PROTO_SYSMOUSE;
811 sc->mode.packetsize = MOUSE_SYS_PACKETSIZE;
812 sc->mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
813 sc->mode.syncmask[1] = MOUSE_SYS_SYNC;
816 bzero(sc->qbuf, sizeof(sc->qbuf));
817 sc->qhead = sc->qtail = sc->qcount = 0;
822 *(int *)ap->a_data = sc->mode.level;
825 if (*(int *)ap->a_data < 0 || *(int *)ap->a_data > 1)
829 sc->mode.level = *(int *)ap->a_data;
831 if (sc->mode.level == 0) {
832 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
833 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
835 sc->hw.buttons = sc->nbuttons;
836 sc->mode.protocol = MOUSE_PROTO_MSC;
837 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
838 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
839 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
840 } else if (sc->mode.level == 1) {
841 if (sc->nbuttons > MOUSE_SYS_MAXBUTTON)
842 sc->hw.buttons = MOUSE_SYS_MAXBUTTON;
844 sc->hw.buttons = sc->nbuttons;
845 sc->mode.protocol = MOUSE_PROTO_SYSMOUSE;
846 sc->mode.packetsize = MOUSE_SYS_PACKETSIZE;
847 sc->mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
848 sc->mode.syncmask[1] = MOUSE_SYS_SYNC;
851 bzero(sc->qbuf, sizeof(sc->qbuf));
852 sc->qhead = sc->qtail = sc->qcount = 0;
856 case MOUSE_GETSTATUS: {
857 mousestatus_t *status = (mousestatus_t *) ap->a_data;
860 *status = sc->status;
861 sc->status.obutton = sc->status.button;
862 sc->status.button = 0;
863 sc->status.dx = sc->status.dy = sc->status.dz = 0;
866 if (status->dx || status->dy || status->dz)
867 status->flags |= MOUSE_POSCHANGED;
868 if (status->button != status->obutton)
869 status->flags |= MOUSE_BUTTONSCHANGED;
879 DRIVER_MODULE(ums, uhub, ums_driver, ums_devclass, usbd_driver_load, 0);