1 | /* $NetBSD: wsmouse.c,v 1.66 2014/07/25 08:10:39 dholland Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 2006 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Julio M. Merino Vidal. |
9 | * |
10 | * Redistribution and use in source and binary forms, with or without |
11 | * modification, are permitted provided that the following conditions |
12 | * are met: |
13 | * 1. Redistributions of source code must retain the above copyright |
14 | * notice, this list of conditions and the following disclaimer. |
15 | * 2. Redistributions in binary form must reproduce the above copyright |
16 | * notice, this list of conditions and the following disclaimer in the |
17 | * documentation and/or other materials provided with the distribution. |
18 | * |
19 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
20 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
21 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
23 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
24 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
25 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
26 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
27 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
28 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
29 | * POSSIBILITY OF SUCH DAMAGE. |
30 | */ |
31 | |
32 | /* |
33 | * Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved. |
34 | * |
35 | * Redistribution and use in source and binary forms, with or without |
36 | * modification, are permitted provided that the following conditions |
37 | * are met: |
38 | * 1. Redistributions of source code must retain the above copyright |
39 | * notice, this list of conditions and the following disclaimer. |
40 | * 2. Redistributions in binary form must reproduce the above copyright |
41 | * notice, this list of conditions and the following disclaimer in the |
42 | * documentation and/or other materials provided with the distribution. |
43 | * 3. All advertising materials mentioning features or use of this software |
44 | * must display the following acknowledgement: |
45 | * This product includes software developed by Christopher G. Demetriou |
46 | * for the NetBSD Project. |
47 | * 4. The name of the author may not be used to endorse or promote products |
48 | * derived from this software without specific prior written permission |
49 | * |
50 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
51 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
52 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
53 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
54 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
55 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
56 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
57 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
58 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
59 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
60 | */ |
61 | |
62 | /* |
63 | * Copyright (c) 1992, 1993 |
64 | * The Regents of the University of California. All rights reserved. |
65 | * |
66 | * This software was developed by the Computer Systems Engineering group |
67 | * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and |
68 | * contributed to Berkeley. |
69 | * |
70 | * All advertising materials mentioning features or use of this software |
71 | * must display the following acknowledgement: |
72 | * This product includes software developed by the University of |
73 | * California, Lawrence Berkeley Laboratory. |
74 | * |
75 | * Redistribution and use in source and binary forms, with or without |
76 | * modification, are permitted provided that the following conditions |
77 | * are met: |
78 | * 1. Redistributions of source code must retain the above copyright |
79 | * notice, this list of conditions and the following disclaimer. |
80 | * 2. Redistributions in binary form must reproduce the above copyright |
81 | * notice, this list of conditions and the following disclaimer in the |
82 | * documentation and/or other materials provided with the distribution. |
83 | * 3. Neither the name of the University nor the names of its contributors |
84 | * may be used to endorse or promote products derived from this software |
85 | * without specific prior written permission. |
86 | * |
87 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND |
88 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
89 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
90 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE |
91 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
92 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS |
93 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) |
94 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
95 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY |
96 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF |
97 | * SUCH DAMAGE. |
98 | * |
99 | * @(#)ms.c 8.1 (Berkeley) 6/11/93 |
100 | */ |
101 | |
102 | /* |
103 | * Mouse driver. |
104 | */ |
105 | |
106 | #include <sys/cdefs.h> |
107 | __KERNEL_RCSID(0, "$NetBSD: wsmouse.c,v 1.66 2014/07/25 08:10:39 dholland Exp $" ); |
108 | |
109 | #include "wsmouse.h" |
110 | #include "wsdisplay.h" |
111 | #include "wsmux.h" |
112 | |
113 | #include <sys/param.h> |
114 | #include <sys/conf.h> |
115 | #include <sys/ioctl.h> |
116 | #include <sys/poll.h> |
117 | #include <sys/fcntl.h> |
118 | #include <sys/kernel.h> |
119 | #include <sys/proc.h> |
120 | #include <sys/syslog.h> |
121 | #include <sys/systm.h> |
122 | #include <sys/tty.h> |
123 | #include <sys/signalvar.h> |
124 | #include <sys/device.h> |
125 | #include <sys/vnode.h> |
126 | #include <sys/callout.h> |
127 | #include <sys/malloc.h> |
128 | |
129 | #include <dev/wscons/wsconsio.h> |
130 | #include <dev/wscons/wsmousevar.h> |
131 | #include <dev/wscons/wseventvar.h> |
132 | #include <dev/wscons/wsmuxvar.h> |
133 | |
134 | #if defined(WSMUX_DEBUG) && NWSMUX > 0 |
135 | #define DPRINTF(x) if (wsmuxdebug) printf x |
136 | #define DPRINTFN(n,x) if (wsmuxdebug > (n)) printf x |
137 | extern int wsmuxdebug; |
138 | #else |
139 | #define DPRINTF(x) |
140 | #define DPRINTFN(n,x) |
141 | #endif |
142 | |
143 | #define INVALID_X INT_MAX |
144 | #define INVALID_Y INT_MAX |
145 | #define INVALID_Z INT_MAX |
146 | #define INVALID_W INT_MAX |
147 | |
148 | struct wsmouse_softc { |
149 | struct wsevsrc sc_base; |
150 | |
151 | const struct wsmouse_accessops *sc_accessops; |
152 | void *sc_accesscookie; |
153 | |
154 | u_int sc_mb; /* mouse button state */ |
155 | u_int sc_ub; /* user button state */ |
156 | int sc_dx; /* delta-x */ |
157 | int sc_dy; /* delta-y */ |
158 | int sc_dz; /* delta-z */ |
159 | int sc_dw; /* delta-w */ |
160 | int sc_x; /* absolute-x */ |
161 | int sc_y; /* absolute-y */ |
162 | int sc_z; /* absolute-z */ |
163 | int sc_w; /* absolute-w */ |
164 | |
165 | int sc_refcnt; |
166 | u_char sc_dying; /* device is being detached */ |
167 | |
168 | struct wsmouse_repeat sc_repeat; |
169 | int sc_repeat_button; |
170 | callout_t sc_repeat_callout; |
171 | unsigned int sc_repeat_delay; |
172 | }; |
173 | |
174 | static int wsmouse_match(device_t, cfdata_t, void *); |
175 | static void wsmouse_attach(device_t, device_t, void *); |
176 | static int wsmouse_detach(device_t, int); |
177 | static int wsmouse_activate(device_t, enum devact); |
178 | |
179 | static int wsmouse_do_ioctl(struct wsmouse_softc *, u_long, void *, |
180 | int, struct lwp *); |
181 | |
182 | #if NWSMUX > 0 |
183 | static int wsmouse_mux_open(struct wsevsrc *, struct wseventvar *); |
184 | static int wsmouse_mux_close(struct wsevsrc *); |
185 | #endif |
186 | |
187 | static int wsmousedoioctl(device_t, u_long, void *, int, struct lwp *); |
188 | |
189 | static int wsmousedoopen(struct wsmouse_softc *, struct wseventvar *); |
190 | |
191 | CFATTACH_DECL_NEW(wsmouse, sizeof (struct wsmouse_softc), |
192 | wsmouse_match, wsmouse_attach, wsmouse_detach, wsmouse_activate); |
193 | |
194 | static void wsmouse_repeat(void *v); |
195 | |
196 | extern struct cfdriver wsmouse_cd; |
197 | |
198 | dev_type_open(wsmouseopen); |
199 | dev_type_close(wsmouseclose); |
200 | dev_type_read(wsmouseread); |
201 | dev_type_ioctl(wsmouseioctl); |
202 | dev_type_poll(wsmousepoll); |
203 | dev_type_kqfilter(wsmousekqfilter); |
204 | |
205 | const struct cdevsw wsmouse_cdevsw = { |
206 | .d_open = wsmouseopen, |
207 | .d_close = wsmouseclose, |
208 | .d_read = wsmouseread, |
209 | .d_write = nowrite, |
210 | .d_ioctl = wsmouseioctl, |
211 | .d_stop = nostop, |
212 | .d_tty = notty, |
213 | .d_poll = wsmousepoll, |
214 | .d_mmap = nommap, |
215 | .d_kqfilter = wsmousekqfilter, |
216 | .d_discard = nodiscard, |
217 | .d_flag = D_OTHER |
218 | }; |
219 | |
220 | #if NWSMUX > 0 |
221 | struct wssrcops wsmouse_srcops = { |
222 | WSMUX_MOUSE, |
223 | wsmouse_mux_open, wsmouse_mux_close, wsmousedoioctl, NULL, NULL |
224 | }; |
225 | #endif |
226 | |
227 | /* |
228 | * Print function (for parent devices). |
229 | */ |
230 | int |
231 | wsmousedevprint(void *aux, const char *pnp) |
232 | { |
233 | |
234 | if (pnp) |
235 | aprint_normal("wsmouse at %s" , pnp); |
236 | return (UNCONF); |
237 | } |
238 | |
239 | int |
240 | wsmouse_match(device_t parent, cfdata_t match, void *aux) |
241 | { |
242 | return (1); |
243 | } |
244 | |
245 | void |
246 | wsmouse_attach(device_t parent, device_t self, void *aux) |
247 | { |
248 | struct wsmouse_softc *sc = device_private(self); |
249 | struct wsmousedev_attach_args *ap = aux; |
250 | #if NWSMUX > 0 |
251 | int mux, error; |
252 | #endif |
253 | |
254 | sc->sc_base.me_dv = self; |
255 | sc->sc_accessops = ap->accessops; |
256 | sc->sc_accesscookie = ap->accesscookie; |
257 | |
258 | /* Initialize button repeating. */ |
259 | memset(&sc->sc_repeat, 0, sizeof(sc->sc_repeat)); |
260 | sc->sc_repeat_button = -1; |
261 | sc->sc_repeat_delay = 0; |
262 | callout_init(&sc->sc_repeat_callout, 0); |
263 | callout_setfunc(&sc->sc_repeat_callout, wsmouse_repeat, sc); |
264 | |
265 | #if NWSMUX > 0 |
266 | sc->sc_base.me_ops = &wsmouse_srcops; |
267 | mux = device_cfdata(self)->wsmousedevcf_mux; |
268 | if (mux >= 0) { |
269 | error = wsmux_attach_sc(wsmux_getmux(mux), &sc->sc_base); |
270 | if (error) |
271 | aprint_error(" attach error=%d" , error); |
272 | else |
273 | aprint_normal(" mux %d" , mux); |
274 | } |
275 | #else |
276 | if (device_cfdata(self)->wsmousedevcf_mux >= 0) |
277 | aprint_normal(" (mux ignored)" ); |
278 | #endif |
279 | |
280 | aprint_naive("\n" ); |
281 | aprint_normal("\n" ); |
282 | |
283 | if (!pmf_device_register(self, NULL, NULL)) |
284 | aprint_error_dev(self, "couldn't establish power handler\n" ); |
285 | } |
286 | |
287 | int |
288 | wsmouse_activate(device_t self, enum devact act) |
289 | { |
290 | struct wsmouse_softc *sc = device_private(self); |
291 | |
292 | if (act == DVACT_DEACTIVATE) |
293 | sc->sc_dying = 1; |
294 | return (0); |
295 | } |
296 | |
297 | /* |
298 | * Detach a mouse. To keep track of users of the softc we keep |
299 | * a reference count that's incremented while inside, e.g., read. |
300 | * If the mouse is active and the reference count is > 0 (0 is the |
301 | * normal state) we post an event and then wait for the process |
302 | * that had the reference to wake us up again. Then we blow away the |
303 | * vnode and return (which will deallocate the softc). |
304 | */ |
305 | int |
306 | wsmouse_detach(device_t self, int flags) |
307 | { |
308 | struct wsmouse_softc *sc = device_private(self); |
309 | struct wseventvar *evar; |
310 | int maj, mn; |
311 | int s; |
312 | |
313 | #if NWSMUX > 0 |
314 | /* Tell parent mux we're leaving. */ |
315 | if (sc->sc_base.me_parent != NULL) { |
316 | DPRINTF(("wsmouse_detach:\n" )); |
317 | wsmux_detach_sc(&sc->sc_base); |
318 | } |
319 | #endif |
320 | |
321 | /* If we're open ... */ |
322 | evar = sc->sc_base.me_evp; |
323 | if (evar != NULL && evar->io != NULL) { |
324 | s = spltty(); |
325 | if (--sc->sc_refcnt >= 0) { |
326 | struct wscons_event event; |
327 | |
328 | /* Wake everyone by generating a dummy event. */ |
329 | event.type = 0; |
330 | event.value = 0; |
331 | if (wsevent_inject(evar, &event, 1) != 0) |
332 | wsevent_wakeup(evar); |
333 | |
334 | /* Wait for processes to go away. */ |
335 | if (tsleep(sc, PZERO, "wsmdet" , hz * 60)) |
336 | printf("wsmouse_detach: %s didn't detach\n" , |
337 | device_xname(self)); |
338 | } |
339 | splx(s); |
340 | } |
341 | |
342 | /* locate the major number */ |
343 | maj = cdevsw_lookup_major(&wsmouse_cdevsw); |
344 | |
345 | /* Nuke the vnodes for any open instances (calls close). */ |
346 | mn = device_unit(self); |
347 | vdevgone(maj, mn, mn, VCHR); |
348 | |
349 | return (0); |
350 | } |
351 | |
352 | void |
353 | wsmouse_input(device_t wsmousedev, u_int btns /* 0 is up */, |
354 | int x, int y, int z, int w, u_int flags) |
355 | { |
356 | struct wsmouse_softc *sc = device_private(wsmousedev); |
357 | struct wseventvar *evar; |
358 | int mb, ub, d, nevents; |
359 | /* one for each dimension (4) + a bit for each button */ |
360 | struct wscons_event events[4 + sizeof(d) * 8]; |
361 | |
362 | /* |
363 | * Discard input if not open. |
364 | */ |
365 | evar = sc->sc_base.me_evp; |
366 | if (evar == NULL) |
367 | return; |
368 | |
369 | #ifdef DIAGNOSTIC |
370 | if (evar->q == NULL) { |
371 | printf("wsmouse_input: evar->q=NULL\n" ); |
372 | return; |
373 | } |
374 | #endif |
375 | |
376 | #if NWSMUX > 0 |
377 | DPRINTFN(5,("wsmouse_input: %s mux=%p, evar=%p\n" , |
378 | device_xname(sc->sc_base.me_dv), |
379 | sc->sc_base.me_parent, evar)); |
380 | #endif |
381 | |
382 | sc->sc_mb = btns; |
383 | if (!(flags & WSMOUSE_INPUT_ABSOLUTE_X)) |
384 | sc->sc_dx += x; |
385 | if (!(flags & WSMOUSE_INPUT_ABSOLUTE_Y)) |
386 | sc->sc_dy += y; |
387 | if (!(flags & WSMOUSE_INPUT_ABSOLUTE_Z)) |
388 | sc->sc_dz += z; |
389 | if (!(flags & WSMOUSE_INPUT_ABSOLUTE_W)) |
390 | sc->sc_dw += w; |
391 | |
392 | /* |
393 | * We have at least one event (mouse button, delta-X, or |
394 | * delta-Y; possibly all three, and possibly three separate |
395 | * button events). Deliver these events until we are out |
396 | * of changes or out of room. As events get delivered, |
397 | * mark them `unchanged'. |
398 | */ |
399 | ub = sc->sc_ub; |
400 | nevents = 0; |
401 | |
402 | if (flags & WSMOUSE_INPUT_ABSOLUTE_X) { |
403 | if (sc->sc_x != x) { |
404 | events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_X; |
405 | events[nevents].value = x; |
406 | nevents++; |
407 | } |
408 | } else { |
409 | if (sc->sc_dx) { |
410 | events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_X; |
411 | events[nevents].value = sc->sc_dx; |
412 | nevents++; |
413 | } |
414 | } |
415 | if (flags & WSMOUSE_INPUT_ABSOLUTE_Y) { |
416 | if (sc->sc_y != y) { |
417 | events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_Y; |
418 | events[nevents].value = y; |
419 | nevents++; |
420 | } |
421 | } else { |
422 | if (sc->sc_dy) { |
423 | events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_Y; |
424 | events[nevents].value = sc->sc_dy; |
425 | nevents++; |
426 | } |
427 | } |
428 | if (flags & WSMOUSE_INPUT_ABSOLUTE_Z) { |
429 | if (sc->sc_z != z) { |
430 | events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_Z; |
431 | events[nevents].value = z; |
432 | nevents++; |
433 | } |
434 | } else { |
435 | if (sc->sc_dz) { |
436 | events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_Z; |
437 | events[nevents].value = sc->sc_dz; |
438 | nevents++; |
439 | } |
440 | } |
441 | if (flags & WSMOUSE_INPUT_ABSOLUTE_W) { |
442 | if (sc->sc_w != w) { |
443 | events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_W; |
444 | events[nevents].value = w; |
445 | nevents++; |
446 | } |
447 | } else { |
448 | if (sc->sc_dw) { |
449 | events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_W; |
450 | events[nevents].value = sc->sc_dw; |
451 | nevents++; |
452 | } |
453 | } |
454 | |
455 | mb = sc->sc_mb; |
456 | while ((d = mb ^ ub) != 0) { |
457 | int btnno; |
458 | |
459 | /* |
460 | * Cancel button repeating if button status changed. |
461 | */ |
462 | if (sc->sc_repeat_button != -1) { |
463 | KASSERT(sc->sc_repeat_button >= 0); |
464 | KASSERT(sc->sc_repeat.wr_buttons & |
465 | (1 << sc->sc_repeat_button)); |
466 | ub &= ~(1 << sc->sc_repeat_button); |
467 | sc->sc_repeat_button = -1; |
468 | callout_stop(&sc->sc_repeat_callout); |
469 | } |
470 | |
471 | /* |
472 | * Mouse button change. Find the first change and drop |
473 | * it into the event queue. |
474 | */ |
475 | btnno = ffs(d) - 1; |
476 | KASSERT(btnno >= 0); |
477 | |
478 | if (nevents >= sizeof(events) / sizeof(events[0])) { |
479 | aprint_error_dev(sc->sc_base.me_dv, |
480 | "Event queue full (button status mb=0x%x" |
481 | " ub=0x%x)\n" , mb, ub); |
482 | break; |
483 | } |
484 | |
485 | events[nevents].type = |
486 | (mb & d) ? WSCONS_EVENT_MOUSE_DOWN : WSCONS_EVENT_MOUSE_UP; |
487 | events[nevents].value = btnno; |
488 | nevents++; |
489 | |
490 | ub ^= (1 << btnno); |
491 | |
492 | /* |
493 | * Program button repeating if configured for this button. |
494 | */ |
495 | if ((mb & d) && (sc->sc_repeat.wr_buttons & (1 << btnno)) && |
496 | sc->sc_repeat.wr_delay_first > 0) { |
497 | sc->sc_repeat_button = btnno; |
498 | sc->sc_repeat_delay = sc->sc_repeat.wr_delay_first; |
499 | callout_schedule(&sc->sc_repeat_callout, |
500 | mstohz(sc->sc_repeat_delay)); |
501 | } |
502 | } |
503 | |
504 | if (nevents == 0 || wsevent_inject(evar, events, nevents) == 0) { |
505 | /* All events were correctly injected into the queue. |
506 | * Synchronize the mouse's status with what the user |
507 | * has received. */ |
508 | sc->sc_x = x; sc->sc_dx = 0; |
509 | sc->sc_y = y; sc->sc_dy = 0; |
510 | sc->sc_z = z; sc->sc_dz = 0; |
511 | sc->sc_w = w; sc->sc_dw = 0; |
512 | sc->sc_ub = ub; |
513 | #if NWSMUX > 0 |
514 | DPRINTFN(5,("wsmouse_input: %s wakeup evar=%p\n" , |
515 | device_xname(sc->sc_base.me_dv), evar)); |
516 | #endif |
517 | } |
518 | } |
519 | |
520 | static void |
521 | wsmouse_repeat(void *v) |
522 | { |
523 | int oldspl; |
524 | unsigned int newdelay; |
525 | struct wsmouse_softc *sc; |
526 | struct wscons_event events[2]; |
527 | |
528 | oldspl = spltty(); |
529 | sc = (struct wsmouse_softc *)v; |
530 | |
531 | if (sc->sc_repeat_button == -1) { |
532 | /* Race condition: a "button up" event came in when |
533 | * this function was already called but did not do |
534 | * spltty() yet. */ |
535 | splx(oldspl); |
536 | return; |
537 | } |
538 | KASSERT(sc->sc_repeat_button >= 0); |
539 | |
540 | KASSERT(sc->sc_repeat.wr_buttons & (1 << sc->sc_repeat_button)); |
541 | |
542 | newdelay = sc->sc_repeat_delay; |
543 | |
544 | events[0].type = WSCONS_EVENT_MOUSE_UP; |
545 | events[0].value = sc->sc_repeat_button; |
546 | events[1].type = WSCONS_EVENT_MOUSE_DOWN; |
547 | events[1].value = sc->sc_repeat_button; |
548 | |
549 | if (wsevent_inject(sc->sc_base.me_evp, events, 2) == 0) { |
550 | sc->sc_ub = 1 << sc->sc_repeat_button; |
551 | |
552 | if (newdelay - sc->sc_repeat.wr_delay_decrement < |
553 | sc->sc_repeat.wr_delay_minimum) |
554 | newdelay = sc->sc_repeat.wr_delay_minimum; |
555 | else if (newdelay > sc->sc_repeat.wr_delay_minimum) |
556 | newdelay -= sc->sc_repeat.wr_delay_decrement; |
557 | KASSERT(newdelay >= sc->sc_repeat.wr_delay_minimum && |
558 | newdelay <= sc->sc_repeat.wr_delay_first); |
559 | } |
560 | |
561 | /* |
562 | * Reprogram the repeating event. |
563 | */ |
564 | sc->sc_repeat_delay = newdelay; |
565 | callout_schedule(&sc->sc_repeat_callout, mstohz(newdelay)); |
566 | |
567 | splx(oldspl); |
568 | } |
569 | |
570 | int |
571 | wsmouseopen(dev_t dev, int flags, int mode, struct lwp *l) |
572 | { |
573 | struct wsmouse_softc *sc; |
574 | struct wseventvar *evar; |
575 | int error; |
576 | |
577 | sc = device_lookup_private(&wsmouse_cd, minor(dev)); |
578 | if (sc == NULL) |
579 | return ENXIO; |
580 | |
581 | #if NWSMUX > 0 |
582 | DPRINTF(("wsmouseopen: %s mux=%p p=%p\n" , device_xname(sc->sc_base.me_dv), |
583 | sc->sc_base.me_parent, l)); |
584 | #endif |
585 | |
586 | if (sc->sc_dying) |
587 | return (EIO); |
588 | |
589 | if ((flags & (FREAD | FWRITE)) == FWRITE) |
590 | return (0); /* always allow open for write |
591 | so ioctl() is possible. */ |
592 | |
593 | if (sc->sc_base.me_evp != NULL) |
594 | return (EBUSY); |
595 | |
596 | evar = &sc->sc_base.me_evar; |
597 | wsevent_init(evar, l->l_proc); |
598 | sc->sc_base.me_evp = evar; |
599 | |
600 | error = wsmousedoopen(sc, evar); |
601 | if (error) { |
602 | DPRINTF(("wsmouseopen: %s open failed\n" , |
603 | device_xname(sc->sc_base.me_dv))); |
604 | sc->sc_base.me_evp = NULL; |
605 | wsevent_fini(evar); |
606 | } |
607 | return (error); |
608 | } |
609 | |
610 | int |
611 | wsmouseclose(dev_t dev, int flags, int mode, |
612 | struct lwp *l) |
613 | { |
614 | struct wsmouse_softc *sc = |
615 | device_lookup_private(&wsmouse_cd, minor(dev)); |
616 | struct wseventvar *evar = sc->sc_base.me_evp; |
617 | |
618 | if (evar == NULL) |
619 | /* not open for read */ |
620 | return (0); |
621 | sc->sc_base.me_evp = NULL; |
622 | (*sc->sc_accessops->disable)(sc->sc_accesscookie); |
623 | wsevent_fini(evar); |
624 | |
625 | return (0); |
626 | } |
627 | |
628 | int |
629 | wsmousedoopen(struct wsmouse_softc *sc, struct wseventvar *evp) |
630 | { |
631 | sc->sc_base.me_evp = evp; |
632 | sc->sc_x = INVALID_X; |
633 | sc->sc_y = INVALID_Y; |
634 | sc->sc_z = INVALID_Z; |
635 | sc->sc_w = INVALID_W; |
636 | |
637 | /* Stop button repeating when messing with the device. */ |
638 | if (sc->sc_repeat_button != -1) { |
639 | KASSERT(sc->sc_repeat_button >= 0); |
640 | sc->sc_repeat_button = -1; |
641 | callout_stop(&sc->sc_repeat_callout); |
642 | } |
643 | |
644 | /* enable the device, and punt if that's not possible */ |
645 | return (*sc->sc_accessops->enable)(sc->sc_accesscookie); |
646 | } |
647 | |
648 | int |
649 | wsmouseread(dev_t dev, struct uio *uio, int flags) |
650 | { |
651 | struct wsmouse_softc *sc = |
652 | device_lookup_private(&wsmouse_cd, minor(dev)); |
653 | int error; |
654 | |
655 | if (sc->sc_dying) |
656 | return (EIO); |
657 | |
658 | #ifdef DIAGNOSTIC |
659 | if (sc->sc_base.me_evp == NULL) { |
660 | printf("wsmouseread: evp == NULL\n" ); |
661 | return (EINVAL); |
662 | } |
663 | #endif |
664 | |
665 | sc->sc_refcnt++; |
666 | error = wsevent_read(sc->sc_base.me_evp, uio, flags); |
667 | if (--sc->sc_refcnt < 0) { |
668 | wakeup(sc); |
669 | error = EIO; |
670 | } |
671 | return (error); |
672 | } |
673 | |
674 | int |
675 | wsmouseioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) |
676 | { |
677 | return (wsmousedoioctl(device_lookup(&wsmouse_cd, minor(dev)), |
678 | cmd, data, flag, l)); |
679 | } |
680 | |
681 | /* A wrapper around the ioctl() workhorse to make reference counting easy. */ |
682 | int |
683 | wsmousedoioctl(device_t dv, u_long cmd, void *data, int flag, |
684 | struct lwp *l) |
685 | { |
686 | struct wsmouse_softc *sc = device_private(dv); |
687 | int error; |
688 | |
689 | sc->sc_refcnt++; |
690 | error = wsmouse_do_ioctl(sc, cmd, data, flag, l); |
691 | if (--sc->sc_refcnt < 0) |
692 | wakeup(sc); |
693 | return (error); |
694 | } |
695 | |
696 | int |
697 | wsmouse_do_ioctl(struct wsmouse_softc *sc, u_long cmd, void *data, |
698 | int flag, struct lwp *l) |
699 | { |
700 | int error; |
701 | struct wsmouse_repeat *wr; |
702 | |
703 | if (sc->sc_dying) |
704 | return (EIO); |
705 | |
706 | /* |
707 | * Try the generic ioctls that the wsmouse interface supports. |
708 | */ |
709 | switch (cmd) { |
710 | case FIONBIO: /* we will remove this someday (soon???) */ |
711 | return (0); |
712 | |
713 | case FIOASYNC: |
714 | if (sc->sc_base.me_evp == NULL) |
715 | return (EINVAL); |
716 | sc->sc_base.me_evp->async = *(int *)data != 0; |
717 | return (0); |
718 | |
719 | case FIOSETOWN: |
720 | if (sc->sc_base.me_evp == NULL) |
721 | return (EINVAL); |
722 | if (-*(int *)data != sc->sc_base.me_evp->io->p_pgid |
723 | && *(int *)data != sc->sc_base.me_evp->io->p_pid) |
724 | return (EPERM); |
725 | return (0); |
726 | |
727 | case TIOCSPGRP: |
728 | if (sc->sc_base.me_evp == NULL) |
729 | return (EINVAL); |
730 | if (*(int *)data != sc->sc_base.me_evp->io->p_pgid) |
731 | return (EPERM); |
732 | return (0); |
733 | } |
734 | |
735 | /* |
736 | * Try the wsmouse specific ioctls. |
737 | */ |
738 | switch (cmd) { |
739 | case WSMOUSEIO_GETREPEAT: |
740 | wr = (struct wsmouse_repeat *)data; |
741 | memcpy(wr, &sc->sc_repeat, sizeof(sc->sc_repeat)); |
742 | return 0; |
743 | |
744 | case WSMOUSEIO_SETREPEAT: |
745 | if ((flag & FWRITE) == 0) |
746 | return EACCES; |
747 | |
748 | /* Validate input data. */ |
749 | wr = (struct wsmouse_repeat *)data; |
750 | if (wr->wr_delay_first != 0 && |
751 | (wr->wr_delay_first < wr->wr_delay_decrement || |
752 | wr->wr_delay_first < wr->wr_delay_minimum || |
753 | wr->wr_delay_first < wr->wr_delay_minimum + |
754 | wr->wr_delay_decrement)) |
755 | return EINVAL; |
756 | |
757 | /* Stop current repeating and set new data. */ |
758 | sc->sc_repeat_button = -1; |
759 | callout_stop(&sc->sc_repeat_callout); |
760 | memcpy(&sc->sc_repeat, wr, sizeof(sc->sc_repeat)); |
761 | |
762 | return 0; |
763 | |
764 | case WSMOUSEIO_SETVERSION: |
765 | return wsevent_setversion(sc->sc_base.me_evp, *(int *)data); |
766 | } |
767 | |
768 | /* |
769 | * Try the mouse driver for WSMOUSEIO ioctls. It returns -1 |
770 | * if it didn't recognize the request. |
771 | */ |
772 | error = (*sc->sc_accessops->ioctl)(sc->sc_accesscookie, cmd, |
773 | data, flag, l); |
774 | return (error); /* may be EPASSTHROUGH */ |
775 | } |
776 | |
777 | int |
778 | wsmousepoll(dev_t dev, int events, struct lwp *l) |
779 | { |
780 | struct wsmouse_softc *sc = |
781 | device_lookup_private(&wsmouse_cd, minor(dev)); |
782 | |
783 | if (sc->sc_base.me_evp == NULL) |
784 | return (POLLERR); |
785 | return (wsevent_poll(sc->sc_base.me_evp, events, l)); |
786 | } |
787 | |
788 | int |
789 | wsmousekqfilter(dev_t dev, struct knote *kn) |
790 | { |
791 | struct wsmouse_softc *sc = |
792 | device_lookup_private(&wsmouse_cd, minor(dev)); |
793 | |
794 | if (sc->sc_base.me_evp == NULL) |
795 | return (1); |
796 | return (wsevent_kqfilter(sc->sc_base.me_evp, kn)); |
797 | } |
798 | |
799 | #if NWSMUX > 0 |
800 | int |
801 | wsmouse_mux_open(struct wsevsrc *me, struct wseventvar *evp) |
802 | { |
803 | struct wsmouse_softc *sc = (struct wsmouse_softc *)me; |
804 | |
805 | if (sc->sc_base.me_evp != NULL) |
806 | return (EBUSY); |
807 | |
808 | return wsmousedoopen(sc, evp); |
809 | } |
810 | |
811 | int |
812 | wsmouse_mux_close(struct wsevsrc *me) |
813 | { |
814 | struct wsmouse_softc *sc = (struct wsmouse_softc *)me; |
815 | |
816 | sc->sc_base.me_evp = NULL; |
817 | (*sc->sc_accessops->disable)(sc->sc_accesscookie); |
818 | |
819 | return (0); |
820 | } |
821 | |
822 | int |
823 | wsmouse_add_mux(int unit, struct wsmux_softc *muxsc) |
824 | { |
825 | struct wsmouse_softc *sc; |
826 | |
827 | sc = device_lookup_private(&wsmouse_cd, unit); |
828 | if (sc == NULL) |
829 | return ENXIO; |
830 | |
831 | if (sc->sc_base.me_parent != NULL || sc->sc_base.me_evp != NULL) |
832 | return (EBUSY); |
833 | |
834 | return (wsmux_attach_sc(muxsc, &sc->sc_base)); |
835 | } |
836 | #endif /* NWSMUX > 0 */ |
837 | |