/*
* Detach a keyboard. To keep track of users of the softc we keep
* a reference count that's incremented while inside, e.g., read.
* If the keyboard is active and the reference count is > 0 (0 is the
* normal state) we post an event and then wait for the process
* that had the reference to wake us up again. Then we blow away the
* vnode and return (which will deallocate the softc).
*/
int
wskbd_detach(device_t self, int flags)
{
struct wskbd_softc *sc = device_private(self);
struct wseventvar *evar;
int maj, mn;
int s;
#if NWSMUX > 0
/* Tell parent mux we're leaving. */
if (sc->sc_base.me_parent != NULL)
wsmux_detach_sc(&sc->sc_base);
#endif
callout_halt(&sc->sc_repeat_ch, NULL);
callout_destroy(&sc->sc_repeat_ch);
if (sc->sc_isconsole) {
KASSERT(wskbd_console_device == sc);
wskbd_console_device = NULL;
}
pmf_device_deregister(self);
evar = sc->sc_base.me_evp;
if (evar != NULL && evar->io != NULL) {
s = spltty();
if (--sc->sc_refcnt >= 0) {
struct wscons_event event;
/* Wake everyone by generating a dummy event. */
event.type = 0;
event.value = 0;
if (wsevent_inject(evar, &event, 1) != 0)
wsevent_wakeup(evar);
/* Wait for processes to go away. */
if (tsleep(sc, PZERO, "wskdet", hz * 60))
aprint_error("wskbd_detach: %s didn't detach\n",
device_xname(self));
}
splx(s);
}
/* locate the major number */
maj = cdevsw_lookup_major(&wskbd_cdevsw);
/* Nuke the vnodes for any open instances. */
mn = device_unit(self);
vdevgone(maj, mn, mn, VCHR);
return (0);
}
static void
wsmouse_repeat(void *v)
{
int oldspl;
unsigned int newdelay;
struct wsmouse_softc *sc;
struct wscons_event events[2];
oldspl = spltty();
sc = (struct wsmouse_softc *)v;
if (sc->sc_repeat_button == -1) {
/* Race condition: a "button up" event came in when
* this function was already called but did not do
* spltty() yet. */
splx(oldspl);
return;
}
KASSERT(sc->sc_repeat_button >= 0);
KASSERT(sc->sc_repeat.wr_buttons & (1 << sc->sc_repeat_button));
newdelay = sc->sc_repeat_delay;
events[0].type = WSCONS_EVENT_MOUSE_UP;
events[0].value = sc->sc_repeat_button;
events[1].type = WSCONS_EVENT_MOUSE_DOWN;
events[1].value = sc->sc_repeat_button;
if (wsevent_inject(sc->sc_base.me_evp, events, 2) == 0) {
sc->sc_ub = 1 << sc->sc_repeat_button;
if (newdelay - sc->sc_repeat.wr_delay_decrement <
sc->sc_repeat.wr_delay_minimum)
newdelay = sc->sc_repeat.wr_delay_minimum;
else if (newdelay > sc->sc_repeat.wr_delay_minimum)
newdelay -= sc->sc_repeat.wr_delay_decrement;
KASSERT(newdelay >= sc->sc_repeat.wr_delay_minimum &&
newdelay <= sc->sc_repeat.wr_delay_first);
}
/*
* Reprogram the repeating event.
*/
sc->sc_repeat_delay = newdelay;
callout_schedule(&sc->sc_repeat_callout, mstohz(newdelay));
splx(oldspl);
}
/*
* Detach a mouse. To keep track of users of the softc we keep
* a reference count that's incremented while inside, e.g., read.
* If the mouse is active and the reference count is > 0 (0 is the
* normal state) we post an event and then wait for the process
* that had the reference to wake us up again. Then we blow away the
* vnode and return (which will deallocate the softc).
*/
int
wsmouse_detach(device_t self, int flags)
{
struct wsmouse_softc *sc = device_private(self);
struct wseventvar *evar;
int maj, mn;
int s;
#if NWSMUX > 0
/* Tell parent mux we're leaving. */
if (sc->sc_base.me_parent != NULL) {
DPRINTF(("wsmouse_detach:\n"));
wsmux_detach_sc(&sc->sc_base);
}
#endif
/* If we're open ... */
evar = sc->sc_base.me_evp;
if (evar != NULL && evar->io != NULL) {
s = spltty();
if (--sc->sc_refcnt >= 0) {
struct wscons_event event;
/* Wake everyone by generating a dummy event. */
event.type = 0;
event.value = 0;
if (wsevent_inject(evar, &event, 1) != 0)
wsevent_wakeup(evar);
/* Wait for processes to go away. */
if (tsleep(sc, PZERO, "wsmdet", hz * 60))
printf("wsmouse_detach: %s didn't detach\n",
device_xname(self));
}
splx(s);
}
/* locate the major number */
maj = cdevsw_lookup_major(&wsmouse_cdevsw);
/* Nuke the vnodes for any open instances (calls close). */
mn = device_unit(self);
vdevgone(maj, mn, mn, VCHR);
return (0);
}
/*
* Keyboard is generating events. Turn this keystroke into an
* event and put it in the queue. If the queue is full, the
* keystroke is lost (sorry!).
*/
static void
wskbd_deliver_event(struct wskbd_softc *sc, u_int type, int value)
{
struct wseventvar *evar;
struct wscons_event event;
evar = sc->sc_base.me_evp;
if (evar == NULL) {
DPRINTF(("wskbd_input: not open\n"));
return;
}
#ifdef DIAGNOSTIC
if (evar->q == NULL) {
printf("wskbd_input: evar->q=NULL\n");
return;
}
#endif
event.type = type;
event.value = 0;
DPRINTF(("%d ->", value));
if (sc->sc_evtrans_len > 0) {
if (sc->sc_evtrans_len > value) {
DPRINTF(("%d", sc->sc_evtrans[value]));
event.value = sc->sc_evtrans[value];
}
} else {
event.value = value;
}
DPRINTF(("\n"));
if (wsevent_inject(evar, &event, 1) != 0)
log(LOG_WARNING, "%s: event queue overflow\n",
device_xname(sc->sc_base.me_dv));
}
void
wsmouse_input(device_t wsmousedev, u_int btns /* 0 is up */,
int x, int y, int z, int w, u_int flags)
{
struct wsmouse_softc *sc = device_private(wsmousedev);
struct wseventvar *evar;
int mb, ub, d, nevents;
/* one for each dimension (4) + a bit for each button */
struct wscons_event events[4 + sizeof(d) * 8];
/*
* Discard input if not open.
*/
evar = sc->sc_base.me_evp;
if (evar == NULL)
return;
#ifdef DIAGNOSTIC
if (evar->q == NULL) {
printf("wsmouse_input: evar->q=NULL\n");
return;
}
#endif
#if NWSMUX > 0
DPRINTFN(5,("wsmouse_input: %s mux=%p, evar=%p\n",
device_xname(sc->sc_base.me_dv),
sc->sc_base.me_parent, evar));
#endif
sc->sc_mb = btns;
if (!(flags & WSMOUSE_INPUT_ABSOLUTE_X))
sc->sc_dx += x;
if (!(flags & WSMOUSE_INPUT_ABSOLUTE_Y))
sc->sc_dy += y;
if (!(flags & WSMOUSE_INPUT_ABSOLUTE_Z))
sc->sc_dz += z;
if (!(flags & WSMOUSE_INPUT_ABSOLUTE_W))
sc->sc_dw += w;
/*
* We have at least one event (mouse button, delta-X, or
* delta-Y; possibly all three, and possibly three separate
* button events). Deliver these events until we are out
* of changes or out of room. As events get delivered,
* mark them `unchanged'.
*/
ub = sc->sc_ub;
nevents = 0;
if (flags & WSMOUSE_INPUT_ABSOLUTE_X) {
if (sc->sc_x != x) {
events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_X;
events[nevents].value = x;
nevents++;
}
} else {
if (sc->sc_dx) {
events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_X;
events[nevents].value = sc->sc_dx;
nevents++;
}
}
if (flags & WSMOUSE_INPUT_ABSOLUTE_Y) {
if (sc->sc_y != y) {
events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_Y;
events[nevents].value = y;
nevents++;
}
} else {
if (sc->sc_dy) {
events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_Y;
events[nevents].value = sc->sc_dy;
nevents++;
}
}
if (flags & WSMOUSE_INPUT_ABSOLUTE_Z) {
if (sc->sc_z != z) {
events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_Z;
events[nevents].value = z;
nevents++;
}
} else {
if (sc->sc_dz) {
events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_Z;
events[nevents].value = sc->sc_dz;
nevents++;
}
}
if (flags & WSMOUSE_INPUT_ABSOLUTE_W) {
if (sc->sc_w != w) {
events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_W;
events[nevents].value = w;
nevents++;
}
} else {
if (sc->sc_dw) {
events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_W;
events[nevents].value = sc->sc_dw;
nevents++;
}
}
mb = sc->sc_mb;
while ((d = mb ^ ub) != 0) {
int btnno;
/*
* Cancel button repeating if button status changed.
*/
if (sc->sc_repeat_button != -1) {
KASSERT(sc->sc_repeat_button >= 0);
KASSERT(sc->sc_repeat.wr_buttons &
(1 << sc->sc_repeat_button));
ub &= ~(1 << sc->sc_repeat_button);
sc->sc_repeat_button = -1;
callout_stop(&sc->sc_repeat_callout);
}
/*
* Mouse button change. Find the first change and drop
* it into the event queue.
*/
btnno = ffs(d) - 1;
KASSERT(btnno >= 0);
if (nevents >= sizeof(events) / sizeof(events[0])) {
aprint_error_dev(sc->sc_base.me_dv,
"Event queue full (button status mb=0x%x"
" ub=0x%x)\n", mb, ub);
break;
}
events[nevents].type =
(mb & d) ? WSCONS_EVENT_MOUSE_DOWN : WSCONS_EVENT_MOUSE_UP;
events[nevents].value = btnno;
nevents++;
ub ^= (1 << btnno);
/*
* Program button repeating if configured for this button.
*/
if ((mb & d) && (sc->sc_repeat.wr_buttons & (1 << btnno)) &&
sc->sc_repeat.wr_delay_first > 0) {
sc->sc_repeat_button = btnno;
sc->sc_repeat_delay = sc->sc_repeat.wr_delay_first;
callout_schedule(&sc->sc_repeat_callout,
mstohz(sc->sc_repeat_delay));
}
}
if (nevents == 0 || wsevent_inject(evar, events, nevents) == 0) {
/* All events were correctly injected into the queue.
* Synchronize the mouse's status with what the user
* has received. */
sc->sc_x = x; sc->sc_dx = 0;
sc->sc_y = y; sc->sc_dy = 0;
sc->sc_z = z; sc->sc_dz = 0;
sc->sc_w = w; sc->sc_dw = 0;
sc->sc_ub = ub;
#if NWSMUX > 0
DPRINTFN(5,("wsmouse_input: %s wakeup evar=%p\n",
device_xname(sc->sc_base.me_dv), evar));
#endif
}
}
