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 1.27 2007/07/02 23:52:05 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/usbdevs.h>
69 #include <bus/usb/usb_quirks.h>
70 #include <bus/usb/hid.h>
72 #include <machine/mouse.h>
75 #define DPRINTF(x) if (umsdebug) kprintf x
76 #define DPRINTFN(n,x) if (umsdebug>(n)) kprintf x
78 SYSCTL_NODE(_hw_usb, OID_AUTO, ums, CTLFLAG_RW, 0, "USB ums");
79 SYSCTL_INT(_hw_usb_ums, OID_AUTO, debug, CTLFLAG_RW,
80 &umsdebug, 0, "ums debug level");
86 #define UMSUNIT(s) (minor(s)&0x1f)
88 #define MS_TO_TICKS(ms) ((ms) * hz / 1000)
90 #define QUEUE_BUFSIZE 400 /* MUST be divisible by 5 _and_ 8 */
93 device_t sc_dev; /* base device */
94 usbd_interface_handle sc_iface; /* interface */
95 usbd_pipe_handle sc_intrpipe; /* interrupt pipe */
101 struct hid_location sc_loc_x, sc_loc_y, sc_loc_z;
102 struct hid_location *sc_loc_btn;
104 struct callout sc_timeout; /* for spurious button ups */
107 int sc_disconnected; /* device is gone */
109 int flags; /* device configuration */
110 #define UMS_Z 0x01 /* z direction available */
111 #define UMS_SPUR_BUT_UP 0x02 /* spurious button up events */
113 #define MAX_BUTTONS 31 /* must not exceed size of sc_buttons */
115 u_char qbuf[QUEUE_BUFSIZE]; /* must be divisable by 3&4 */
116 u_char dummy[100]; /* XXX just for safety and for now */
117 int qcount, qhead, qtail;
120 mousestatus_t status;
123 # define UMS_ASLEEP 0x01 /* readFromDevice is waiting */
124 # define UMS_SELECT 0x02 /* select is waiting */
125 struct selinfo rsel; /* process waiting in select */
128 #define MOUSE_FLAGS_MASK (HIO_CONST|HIO_RELATIVE)
129 #define MOUSE_FLAGS (HIO_RELATIVE)
131 static void ums_intr(usbd_xfer_handle xfer,
132 usbd_private_handle priv, usbd_status status);
134 static void ums_add_to_queue(struct ums_softc *sc,
135 int dx, int dy, int dz, int buttons);
136 static void ums_add_to_queue_timeout(void *priv);
138 static int ums_enable(void *);
139 static void ums_disable(void *);
141 static d_open_t ums_open;
142 static d_close_t ums_close;
143 static d_read_t ums_read;
144 static d_ioctl_t ums_ioctl;
145 static d_poll_t ums_poll;
147 #define UMS_CDEV_MAJOR 111
149 static struct dev_ops ums_ops = {
150 { "ums", UMS_CDEV_MAJOR, 0 },
152 .d_close = ums_close,
154 .d_ioctl = ums_ioctl,
158 static device_probe_t ums_match;
159 static device_attach_t ums_attach;
160 static device_detach_t ums_detach;
162 static devclass_t ums_devclass;
164 static kobj_method_t ums_methods[] = {
165 DEVMETHOD(device_probe, ums_match),
166 DEVMETHOD(device_attach, ums_attach),
167 DEVMETHOD(device_detach, ums_detach),
171 static driver_t ums_driver = {
174 sizeof(struct ums_softc)
177 MODULE_DEPEND(ums, usb, 1, 1, 1);
180 ums_match(device_t self)
182 struct usb_attach_arg *uaa = device_get_ivars(self);
183 usb_interface_descriptor_t *id;
189 return (UMATCH_NONE);
190 id = usbd_get_interface_descriptor(uaa->iface);
191 if (!id || id->bInterfaceClass != UICLASS_HID)
192 return (UMATCH_NONE);
194 err = usbd_read_report_desc(uaa->iface, &desc, &size, M_TEMP);
196 return (UMATCH_NONE);
198 if (hid_is_collection(desc, size,
199 HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_MOUSE)))
200 ret = UMATCH_IFACECLASS;
209 ums_attach(device_t self)
211 struct ums_softc *sc = device_get_softc(self);
212 struct usb_attach_arg *uaa = device_get_ivars(self);
213 usbd_interface_handle iface = uaa->iface;
214 usb_interface_descriptor_t *id;
215 usb_endpoint_descriptor_t *ed;
222 struct hid_location loc_btn;
224 sc->sc_disconnected = 1;
225 sc->sc_iface = iface;
226 id = usbd_get_interface_descriptor(iface);
227 usbd_devinfo(uaa->device, 0, devinfo);
229 device_set_desc_copy(self, devinfo);
230 kprintf("%s: %s, iclass %d/%d\n", device_get_nameunit(sc->sc_dev),
231 devinfo, id->bInterfaceClass, id->bInterfaceSubClass);
232 ed = usbd_interface2endpoint_descriptor(iface, 0);
234 kprintf("%s: could not read endpoint descriptor\n",
235 device_get_nameunit(sc->sc_dev));
239 DPRINTFN(10,("ums_attach: bLength=%d bDescriptorType=%d "
240 "bEndpointAddress=%d-%s bmAttributes=%d wMaxPacketSize=%d"
242 ed->bLength, ed->bDescriptorType,
243 UE_GET_ADDR(ed->bEndpointAddress),
244 UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN ? "in":"out",
245 UE_GET_XFERTYPE(ed->bmAttributes),
246 UGETW(ed->wMaxPacketSize), ed->bInterval));
248 if (UE_GET_DIR(ed->bEndpointAddress) != UE_DIR_IN ||
249 UE_GET_XFERTYPE(ed->bmAttributes) != UE_INTERRUPT) {
250 kprintf("%s: unexpected endpoint\n",
251 device_get_nameunit(sc->sc_dev));
255 err = usbd_read_report_desc(uaa->iface, &desc, &size, M_TEMP);
259 if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_X),
260 hid_input, &sc->sc_loc_x, &flags)) {
261 kprintf("%s: mouse has no X report\n", device_get_nameunit(sc->sc_dev));
264 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
265 kprintf("%s: X report 0x%04x not supported\n",
266 device_get_nameunit(sc->sc_dev), flags);
270 if (!hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Y),
271 hid_input, &sc->sc_loc_y, &flags)) {
272 kprintf("%s: mouse has no Y report\n", device_get_nameunit(sc->sc_dev));
275 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
276 kprintf("%s: Y report 0x%04x not supported\n",
277 device_get_nameunit(sc->sc_dev), flags);
281 /* try to guess the Z activator: first check Z, then WHEEL */
282 if (hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_Z),
283 hid_input, &sc->sc_loc_z, &flags) ||
284 hid_locate(desc, size, HID_USAGE2(HUP_GENERIC_DESKTOP, HUG_WHEEL),
285 hid_input, &sc->sc_loc_z, &flags)) {
286 if ((flags & MOUSE_FLAGS_MASK) != MOUSE_FLAGS) {
287 sc->sc_loc_z.size = 0; /* Bad Z coord, ignore it */
293 /* figure out the number of buttons */
294 for (i = 1; i <= MAX_BUTTONS; i++)
295 if (!hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
296 hid_input, &loc_btn, 0))
298 sc->nbuttons = i - 1;
299 sc->sc_loc_btn = kmalloc(sizeof(struct hid_location)*sc->nbuttons,
300 M_USBDEV, M_INTWAIT);
302 kprintf("%s: %d buttons%s\n", device_get_nameunit(sc->sc_dev),
303 sc->nbuttons, sc->flags & UMS_Z? " and Z dir." : "");
305 for (i = 1; i <= sc->nbuttons; i++)
306 hid_locate(desc, size, HID_USAGE2(HUP_BUTTON, i),
307 hid_input, &sc->sc_loc_btn[i-1], 0);
309 sc->sc_isize = hid_report_size(desc, size, hid_input, &sc->sc_iid);
310 sc->sc_ibuf = kmalloc(sc->sc_isize, M_USB, M_INTWAIT);
311 sc->sc_ep_addr = ed->bEndpointAddress;
312 sc->sc_disconnected = 0;
316 DPRINTF(("ums_attach: sc=%p\n", sc));
317 DPRINTF(("ums_attach: X\t%d/%d\n",
318 sc->sc_loc_x.pos, sc->sc_loc_x.size));
319 DPRINTF(("ums_attach: Y\t%d/%d\n",
320 sc->sc_loc_y.pos, sc->sc_loc_y.size));
321 if (sc->flags & UMS_Z)
322 DPRINTF(("ums_attach: Z\t%d/%d\n",
323 sc->sc_loc_z.pos, sc->sc_loc_z.size));
324 for (i = 1; i <= sc->nbuttons; i++) {
325 DPRINTF(("ums_attach: B%d\t%d/%d\n",
326 i, sc->sc_loc_btn[i-1].pos,sc->sc_loc_btn[i-1].size));
328 DPRINTF(("ums_attach: size=%d, id=%d\n", sc->sc_isize, sc->sc_iid));
331 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
332 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
334 sc->hw.buttons = sc->nbuttons;
335 sc->hw.iftype = MOUSE_IF_USB;
336 sc->hw.type = MOUSE_MOUSE;
337 sc->hw.model = MOUSE_MODEL_GENERIC;
339 sc->mode.protocol = MOUSE_PROTO_MSC;
341 sc->mode.resolution = MOUSE_RES_UNKNOWN;
342 sc->mode.accelfactor = 0;
344 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
345 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
346 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
348 sc->status.flags = 0;
349 sc->status.button = sc->status.obutton = 0;
350 sc->status.dx = sc->status.dy = sc->status.dz = 0;
352 dev_ops_add(&ums_ops, -1, device_get_unit(self));
353 make_dev(&ums_ops, device_get_unit(self),
354 UID_ROOT, GID_OPERATOR,
355 0644, "ums%d", device_get_unit(self));
357 if (usbd_get_quirks(uaa->device)->uq_flags & UQ_SPUR_BUT_UP) {
358 DPRINTF(("%s: Spurious button up events\n",
359 device_get_nameunit(sc->sc_dev)));
360 sc->flags |= UMS_SPUR_BUT_UP;
368 ums_detach(device_t self)
370 struct ums_softc *sc = device_get_softc(self);
375 DPRINTF(("%s: disconnected\n", device_get_nameunit(self)));
377 kfree(sc->sc_loc_btn, M_USB);
378 kfree(sc->sc_ibuf, M_USB);
380 /* someone waiting for data */
382 * XXX If we wakeup the process here, the device will be gone by
383 * the time the process gets a chance to notice. *_close and friends
384 * should be fixed to handle this case.
385 * Or we should do a delayed detach for this.
386 * Does this delay now force tsleep to exit with an error?
388 if (sc->state & UMS_ASLEEP) {
389 sc->state &= ~UMS_ASLEEP;
392 if (sc->state & UMS_SELECT) {
393 sc->state &= ~UMS_SELECT;
394 selwakeuppri(&sc->rsel, 0);
396 dev_ops_remove(&ums_ops, -1, device_get_unit(self));
402 ums_intr(usbd_xfer_handle xfer, usbd_private_handle addr,
405 struct ums_softc *sc = addr;
411 #define UMS_BUT(i) ((i) < 3 ? (((i) + 2) % 3) : (i))
413 DPRINTFN(5, ("ums_intr: sc=%p status=%d\n", sc, status));
414 DPRINTFN(5, ("ums_intr: data = %02x %02x %02x\n",
415 sc->sc_ibuf[0], sc->sc_ibuf[1], sc->sc_ibuf[2]));
417 if (status == USBD_CANCELLED)
420 if (status != USBD_NORMAL_COMPLETION) {
421 DPRINTF(("ums_intr: status=%d\n", status));
422 if (status == USBD_STALLED)
423 usbd_clear_endpoint_stall_async(sc->sc_intrpipe);
429 if (*ibuf++ != sc->sc_iid)
433 dx = hid_get_data(ibuf, &sc->sc_loc_x);
434 dy = -hid_get_data(ibuf, &sc->sc_loc_y);
435 dz = -hid_get_data(ibuf, &sc->sc_loc_z);
436 for (i = 0; i < sc->nbuttons; i++)
437 if (hid_get_data(ibuf, &sc->sc_loc_btn[i]))
438 buttons |= (1 << UMS_BUT(i));
440 if (dx || dy || dz || (sc->flags & UMS_Z)
441 || buttons != sc->status.button) {
442 DPRINTFN(5, ("ums_intr: x:%d y:%d z:%d buttons:0x%x\n",
443 dx, dy, dz, buttons));
445 sc->status.button = buttons;
450 /* Discard data in case of full buffer */
451 if (sc->qcount == sizeof(sc->qbuf)) {
452 DPRINTF(("Buffer full, discarded packet"));
457 * The Qtronix keyboard has a built in PS/2 port for a mouse.
458 * The firmware once in a while posts a spurious button up
459 * event. This event we ignore by doing a timeout for 50 msecs.
460 * If we receive dx=dy=dz=buttons=0 before we add the event to
462 * In any other case we delete the timeout event.
464 if (sc->flags & UMS_SPUR_BUT_UP &&
465 dx == 0 && dy == 0 && dz == 0 && buttons == 0) {
466 callout_reset(&sc->sc_timeout, MS_TO_TICKS(50),
467 ums_add_to_queue_timeout, (void *) sc);
469 callout_stop(&sc->sc_timeout);
470 ums_add_to_queue(sc, dx, dy, dz, buttons);
476 ums_add_to_queue_timeout(void *priv)
478 struct ums_softc *sc = priv;
481 ums_add_to_queue(sc, 0, 0, 0, 0);
486 ums_add_to_queue(struct ums_softc *sc, int dx, int dy, int dz, int buttons)
488 /* Discard data in case of full buffer */
489 if (sc->qhead+sc->mode.packetsize > sizeof(sc->qbuf)) {
490 DPRINTF(("Buffer full, discarded packet"));
494 if (dx > 254) dx = 254;
495 if (dx < -256) dx = -256;
496 if (dy > 254) dy = 254;
497 if (dy < -256) dy = -256;
498 if (dz > 126) dz = 126;
499 if (dz < -128) dz = -128;
501 sc->qbuf[sc->qhead] = sc->mode.syncmask[1];
502 sc->qbuf[sc->qhead] |= ~buttons & MOUSE_MSC_BUTTONS;
503 sc->qbuf[sc->qhead+1] = dx >> 1;
504 sc->qbuf[sc->qhead+2] = dy >> 1;
505 sc->qbuf[sc->qhead+3] = dx - (dx >> 1);
506 sc->qbuf[sc->qhead+4] = dy - (dy >> 1);
508 if (sc->mode.level == 1) {
509 sc->qbuf[sc->qhead+5] = dz >> 1;
510 sc->qbuf[sc->qhead+6] = dz - (dz >> 1);
511 sc->qbuf[sc->qhead+7] = ((~buttons >> 3)
512 & MOUSE_SYS_EXTBUTTONS);
515 sc->qhead += sc->mode.packetsize;
516 sc->qcount += sc->mode.packetsize;
517 /* wrap round at end of buffer */
518 if (sc->qhead >= sizeof(sc->qbuf))
521 /* someone waiting for data */
522 if (sc->state & UMS_ASLEEP) {
523 sc->state &= ~UMS_ASLEEP;
526 if (sc->state & UMS_SELECT) {
527 sc->state &= ~UMS_SELECT;
528 selwakeuppri(&sc->rsel, 0);
535 struct ums_softc *sc = v;
544 sc->qhead = sc->qtail = 0;
545 sc->status.flags = 0;
546 sc->status.button = sc->status.obutton = 0;
547 sc->status.dx = sc->status.dy = sc->status.dz = 0;
549 callout_init(&sc->sc_timeout);
551 /* Set up interrupt pipe. */
552 err = usbd_open_pipe_intr(sc->sc_iface, sc->sc_ep_addr,
553 USBD_SHORT_XFER_OK, &sc->sc_intrpipe, sc,
554 sc->sc_ibuf, sc->sc_isize, ums_intr,
555 USBD_DEFAULT_INTERVAL);
557 DPRINTF(("ums_enable: usbd_open_pipe_intr failed, error=%d\n",
566 ums_disable(void *priv)
568 struct ums_softc *sc = priv;
570 callout_stop(&sc->sc_timeout);
572 /* Disable interrupts. */
573 usbd_abort_pipe(sc->sc_intrpipe);
574 usbd_close_pipe(sc->sc_intrpipe);
579 DPRINTF(("Discarded %d bytes in queue\n", sc->qcount));
583 ums_open(struct dev_open_args *ap)
585 cdev_t dev = ap->a_head.a_dev;
586 struct ums_softc *sc;
588 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
592 return ums_enable(sc);
596 ums_close(struct dev_close_args *ap)
598 cdev_t dev = ap->a_head.a_dev;
599 struct ums_softc *sc;
601 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
613 ums_read(struct dev_read_args *ap)
615 cdev_t dev = ap->a_head.a_dev;
616 struct uio *uio = ap->a_uio;
617 struct ums_softc *sc;
618 char buf[sizeof(sc->qbuf)];
622 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
630 while (sc->qcount == 0 ) {
631 if (ap->a_ioflag & IO_NDELAY) { /* non-blocking I/O */
636 sc->state |= UMS_ASLEEP; /* blocking I/O */
637 error = tsleep(sc, PCATCH, "umsrea", 0);
641 } else if (!sc->sc_enabled) {
645 /* check whether the device is still there */
647 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
655 * The writer process only extends qcount and qtail. We could copy
656 * them and use the copies to do the copying out of the queue.
659 while ((sc->qcount > 0) && (uio->uio_resid > 0)) {
660 l = (sc->qcount < uio->uio_resid? sc->qcount:uio->uio_resid);
663 if (l > sizeof(sc->qbuf) - sc->qtail) /* transfer till end of buf */
664 l = sizeof(sc->qbuf) - sc->qtail;
667 uiomove(&sc->qbuf[sc->qtail], l, uio);
670 if ( sc->qcount - l < 0 ) {
671 DPRINTF(("qcount below 0, count=%d l=%d\n", sc->qcount, l));
674 sc->qcount -= l; /* remove the bytes from the buffer */
675 sc->qtail = (sc->qtail + l) % sizeof(sc->qbuf);
683 ums_poll(struct dev_poll_args *ap)
685 cdev_t dev = ap->a_head.a_dev;
686 struct ums_softc *sc;
689 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
697 if (ap->a_events & (POLLIN | POLLRDNORM)) {
699 revents = ap->a_events & (POLLIN | POLLRDNORM);
701 sc->state |= UMS_SELECT;
702 selrecord(curthread, &sc->rsel);
706 ap->a_events = revents;
711 ums_ioctl(struct dev_ioctl_args *ap)
713 cdev_t dev = ap->a_head.a_dev;
714 struct ums_softc *sc;
718 sc = devclass_get_softc(ums_devclass, UMSUNIT(dev));
724 case MOUSE_GETHWINFO:
725 *(mousehw_t *)ap->a_data = sc->hw;
728 *(mousemode_t *)ap->a_data = sc->mode;
731 mode = *(mousemode_t *)ap->a_data;
733 if (mode.level == -1)
734 /* don't change the current setting */
736 else if ((mode.level < 0) || (mode.level > 1))
740 sc->mode.level = mode.level;
742 if (sc->mode.level == 0) {
743 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
744 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
746 sc->hw.buttons = sc->nbuttons;
747 sc->mode.protocol = MOUSE_PROTO_MSC;
748 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
749 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
750 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
751 } else if (sc->mode.level == 1) {
752 if (sc->nbuttons > MOUSE_SYS_MAXBUTTON)
753 sc->hw.buttons = MOUSE_SYS_MAXBUTTON;
755 sc->hw.buttons = sc->nbuttons;
756 sc->mode.protocol = MOUSE_PROTO_SYSMOUSE;
757 sc->mode.packetsize = MOUSE_SYS_PACKETSIZE;
758 sc->mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
759 sc->mode.syncmask[1] = MOUSE_SYS_SYNC;
762 bzero(sc->qbuf, sizeof(sc->qbuf));
763 sc->qhead = sc->qtail = sc->qcount = 0;
768 *(int *)ap->a_data = sc->mode.level;
771 if (*(int *)ap->a_data < 0 || *(int *)ap->a_data > 1)
775 sc->mode.level = *(int *)ap->a_data;
777 if (sc->mode.level == 0) {
778 if (sc->nbuttons > MOUSE_MSC_MAXBUTTON)
779 sc->hw.buttons = MOUSE_MSC_MAXBUTTON;
781 sc->hw.buttons = sc->nbuttons;
782 sc->mode.protocol = MOUSE_PROTO_MSC;
783 sc->mode.packetsize = MOUSE_MSC_PACKETSIZE;
784 sc->mode.syncmask[0] = MOUSE_MSC_SYNCMASK;
785 sc->mode.syncmask[1] = MOUSE_MSC_SYNC;
786 } else if (sc->mode.level == 1) {
787 if (sc->nbuttons > MOUSE_SYS_MAXBUTTON)
788 sc->hw.buttons = MOUSE_SYS_MAXBUTTON;
790 sc->hw.buttons = sc->nbuttons;
791 sc->mode.protocol = MOUSE_PROTO_SYSMOUSE;
792 sc->mode.packetsize = MOUSE_SYS_PACKETSIZE;
793 sc->mode.syncmask[0] = MOUSE_SYS_SYNCMASK;
794 sc->mode.syncmask[1] = MOUSE_SYS_SYNC;
797 bzero(sc->qbuf, sizeof(sc->qbuf));
798 sc->qhead = sc->qtail = sc->qcount = 0;
802 case MOUSE_GETSTATUS: {
803 mousestatus_t *status = (mousestatus_t *) ap->a_data;
806 *status = sc->status;
807 sc->status.obutton = sc->status.button;
808 sc->status.button = 0;
809 sc->status.dx = sc->status.dy = sc->status.dz = 0;
812 if (status->dx || status->dy || status->dz)
813 status->flags |= MOUSE_POSCHANGED;
814 if (status->button != status->obutton)
815 status->flags |= MOUSE_BUTTONSCHANGED;
825 DRIVER_MODULE(ums, uhub, ums_driver, ums_devclass, usbd_driver_load, 0);