void
hidms_input(struct hidms *ms, uint8_t *data, u_int len)
{
int dx, dy, dz, dw;
u_int32_t buttons = 0;
int flags;
int i, s;
DPRINTFN(5,("hidms_input: len=%d\n", len));
/*
* The Microsoft Wireless Intellimouse 2.0 sends one extra leading
* byte of data compared to most USB mice. This byte frequently
* switches from 0x01 (usual state) to 0x02. It may be used to
* report non-standard events (such as battery life). However,
* at the same time, it generates a left click event on the
* button byte, where there shouldn't be any. We simply discard
* the packet in this case.
*
* This problem affects the MS Wireless Notebook Optical Mouse, too.
* However, the leading byte for this mouse is normally 0x11, and
* the phantom mouse click occurs when it's 0x14.
*/
if (ms->sc_flags & HIDMS_LEADINGBYTE) {
if (*data++ == 0x02)
return;
/* len--; */
} else if (ms->sc_flags & HIDMS_SPUR_BUT_UP) {
if (*data == 0x14 || *data == 0x15)
return;
}
flags = WSMOUSE_INPUT_DELTA;
if (ms->sc_flags & HIDMS_ABSX)
flags |= WSMOUSE_INPUT_ABSOLUTE_X;
if (ms->sc_flags & HIDMS_ABSY)
flags |= WSMOUSE_INPUT_ABSOLUTE_Y;
dx = hid_get_data(data, len, &ms->sc_loc_x);
dy = -hid_get_data(data, len, &ms->sc_loc_y);
dz = hid_get_data(data, len, &ms->sc_loc_z);
dw = hid_get_data(data, len, &ms->sc_loc_w);
if (ms->sc_flags & HIDMS_ABSY)
dy = -dy;
if (ms->sc_flags & HIDMS_REVZ)
dz = -dz;
if (ms->sc_flags & HIDMS_REVW)
dw = -dw;
if (ms->sc_tsscale.swapxy && !ms->sc_rawmode) {
int tmp = dx;
dx = dy;
dy = tmp;
}
if (!ms->sc_rawmode &&
(ms->sc_tsscale.maxx - ms->sc_tsscale.minx) != 0 &&
(ms->sc_tsscale.maxy - ms->sc_tsscale.miny) != 0) {
/* Scale down to the screen resolution. */
dx = ((dx - ms->sc_tsscale.minx) * ms->sc_tsscale.resx) /
(ms->sc_tsscale.maxx - ms->sc_tsscale.minx);
dy = ((dy - ms->sc_tsscale.miny) * ms->sc_tsscale.resy) /
(ms->sc_tsscale.maxy - ms->sc_tsscale.miny);
}
for (i = 0; i < ms->sc_num_buttons; i++)
if (hid_get_data(data, len, &ms->sc_loc_btn[i]))
buttons |= (1 << HIDMS_BUT(i));
if (dx != 0 || dy != 0 || dz != 0 || dw != 0 ||
buttons != ms->sc_buttons) {
DPRINTFN(10, ("hidms_input: x:%d y:%d z:%d w:%d buttons:0x%x\n",
dx, dy, dz, dw, buttons));
ms->sc_buttons = buttons;
if (ms->sc_wsmousedev != NULL) {
s = spltty();
wsmouse_input(ms->sc_wsmousedev, buttons,
dx, dy, dz, dw, flags);
splx(s);
}
}
}
