wsmouse.c revision 1.40
1 /* $NetBSD: wsmouse.c,v 1.40 2006/02/07 09:13:02 jmmv 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 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 /* 40 * Copyright (c) 1996, 1997 Christopher G. Demetriou. All rights reserved. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. All advertising materials mentioning features or use of this software 51 * must display the following acknowledgement: 52 * This product includes software developed by Christopher G. Demetriou 53 * for the NetBSD Project. 54 * 4. The name of the author may not be used to endorse or promote products 55 * derived from this software without specific prior written permission 56 * 57 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 58 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 59 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 60 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 61 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 62 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 63 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 64 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 65 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 66 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 67 */ 68 69 /* 70 * Copyright (c) 1992, 1993 71 * The Regents of the University of California. All rights reserved. 72 * 73 * This software was developed by the Computer Systems Engineering group 74 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 75 * contributed to Berkeley. 76 * 77 * All advertising materials mentioning features or use of this software 78 * must display the following acknowledgement: 79 * This product includes software developed by the University of 80 * California, Lawrence Berkeley Laboratory. 81 * 82 * Redistribution and use in source and binary forms, with or without 83 * modification, are permitted provided that the following conditions 84 * are met: 85 * 1. Redistributions of source code must retain the above copyright 86 * notice, this list of conditions and the following disclaimer. 87 * 2. Redistributions in binary form must reproduce the above copyright 88 * notice, this list of conditions and the following disclaimer in the 89 * documentation and/or other materials provided with the distribution. 90 * 3. Neither the name of the University nor the names of its contributors 91 * may be used to endorse or promote products derived from this software 92 * without specific prior written permission. 93 * 94 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 95 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 96 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 97 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 98 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 99 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 100 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 101 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 102 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 103 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 104 * SUCH DAMAGE. 105 * 106 * @(#)ms.c 8.1 (Berkeley) 6/11/93 107 */ 108 109 /* 110 * Mouse driver. 111 */ 112 113 #include <sys/cdefs.h> 114 __KERNEL_RCSID(0, "$NetBSD: wsmouse.c,v 1.40 2006/02/07 09:13:02 jmmv Exp $"); 115 116 #include "wsmouse.h" 117 #include "wsdisplay.h" 118 #include "wsmux.h" 119 120 #include <sys/param.h> 121 #include <sys/conf.h> 122 #include <sys/ioctl.h> 123 #include <sys/poll.h> 124 #include <sys/fcntl.h> 125 #include <sys/kernel.h> 126 #include <sys/proc.h> 127 #include <sys/syslog.h> 128 #include <sys/systm.h> 129 #include <sys/tty.h> 130 #include <sys/signalvar.h> 131 #include <sys/device.h> 132 #include <sys/vnode.h> 133 #include <sys/callout.h> 134 #include <sys/malloc.h> 135 136 #include <dev/wscons/wsconsio.h> 137 #include <dev/wscons/wsmousevar.h> 138 #include <dev/wscons/wseventvar.h> 139 #include <dev/wscons/wsmuxvar.h> 140 141 #if defined(WSMUX_DEBUG) && NWSMUX > 0 142 #define DPRINTF(x) if (wsmuxdebug) printf x 143 #define DPRINTFN(n,x) if (wsmuxdebug > (n)) printf x 144 extern int wsmuxdebug; 145 #else 146 #define DPRINTF(x) 147 #define DPRINTFN(n,x) 148 #endif 149 150 #define INVALID_X INT_MAX 151 #define INVALID_Y INT_MAX 152 #define INVALID_Z INT_MAX 153 154 struct wsmouse_softc { 155 struct wsevsrc sc_base; 156 157 const struct wsmouse_accessops *sc_accessops; 158 void *sc_accesscookie; 159 160 u_int sc_mb; /* mouse button state */ 161 u_int sc_ub; /* user button state */ 162 int sc_dx; /* delta-x */ 163 int sc_dy; /* delta-y */ 164 int sc_dz; /* delta-z */ 165 int sc_dw; /* delta-w */ 166 int sc_x; /* absolute-x */ 167 int sc_y; /* absolute-y */ 168 int sc_z; /* absolute-z */ 169 int sc_w; /* absolute-w */ 170 171 int sc_refcnt; 172 u_char sc_dying; /* device is being detached */ 173 174 struct wsmouse_repeat sc_repeat; 175 int sc_repeat_button; 176 struct callout sc_repeat_callout; 177 unsigned int sc_repeat_delay; 178 }; 179 180 static int wsmouse_match(struct device *, struct cfdata *, void *); 181 static void wsmouse_attach(struct device *, struct device *, void *); 182 static int wsmouse_detach(struct device *, int); 183 static int wsmouse_activate(struct device *, enum devact); 184 185 static int wsmouse_do_ioctl(struct wsmouse_softc *, u_long, caddr_t, 186 int, struct lwp *); 187 188 #if NWSMUX > 0 189 static int wsmouse_mux_open(struct wsevsrc *, struct wseventvar *); 190 static int wsmouse_mux_close(struct wsevsrc *); 191 #endif 192 193 static int wsmousedoioctl(struct device *, u_long, caddr_t, int, struct lwp *); 194 195 static int wsmousedoopen(struct wsmouse_softc *, struct wseventvar *); 196 197 CFATTACH_DECL(wsmouse, sizeof (struct wsmouse_softc), 198 wsmouse_match, wsmouse_attach, wsmouse_detach, wsmouse_activate); 199 200 static void wsmouse_repeat(void *v); 201 202 extern struct cfdriver wsmouse_cd; 203 204 dev_type_open(wsmouseopen); 205 dev_type_close(wsmouseclose); 206 dev_type_read(wsmouseread); 207 dev_type_ioctl(wsmouseioctl); 208 dev_type_poll(wsmousepoll); 209 dev_type_kqfilter(wsmousekqfilter); 210 211 const struct cdevsw wsmouse_cdevsw = { 212 wsmouseopen, wsmouseclose, wsmouseread, nowrite, wsmouseioctl, 213 nostop, notty, wsmousepoll, nommap, wsmousekqfilter, 214 }; 215 216 #if NWSMUX > 0 217 struct wssrcops wsmouse_srcops = { 218 WSMUX_MOUSE, 219 wsmouse_mux_open, wsmouse_mux_close, wsmousedoioctl, NULL, NULL 220 }; 221 #endif 222 223 /* 224 * Print function (for parent devices). 225 */ 226 int 227 wsmousedevprint(void *aux, const char *pnp) 228 { 229 230 if (pnp) 231 aprint_normal("wsmouse at %s", pnp); 232 return (UNCONF); 233 } 234 235 int 236 wsmouse_match(struct device *parent, struct cfdata *match, void *aux) 237 { 238 return (1); 239 } 240 241 void 242 wsmouse_attach(struct device *parent, struct device *self, void *aux) 243 { 244 struct wsmouse_softc *sc = (struct wsmouse_softc *)self; 245 struct wsmousedev_attach_args *ap = aux; 246 #if NWSMUX > 0 247 int mux, error; 248 #endif 249 250 sc->sc_accessops = ap->accessops; 251 sc->sc_accesscookie = ap->accesscookie; 252 253 /* Initialize button repeating. */ 254 memset(&sc->sc_repeat, 0, sizeof(sc->sc_repeat)); 255 sc->sc_repeat_button = -1; 256 sc->sc_repeat_delay = 0; 257 callout_init(&sc->sc_repeat_callout); 258 259 #if NWSMUX > 0 260 sc->sc_base.me_ops = &wsmouse_srcops; 261 mux = sc->sc_base.me_dv.dv_cfdata->wsmousedevcf_mux; 262 if (mux >= 0) { 263 error = wsmux_attach_sc(wsmux_getmux(mux), &sc->sc_base); 264 if (error) 265 printf(" attach error=%d", error); 266 else 267 printf(" mux %d", mux); 268 } 269 #else 270 if (sc->sc_base.me_dv.dv_cfdata->wsmousedevcf_mux >= 0) 271 printf(" (mux ignored)"); 272 #endif 273 274 printf("\n"); 275 } 276 277 int 278 wsmouse_activate(struct device *self, enum devact act) 279 { 280 struct wsmouse_softc *sc = (struct wsmouse_softc *)self; 281 282 if (act == DVACT_DEACTIVATE) 283 sc->sc_dying = 1; 284 return (0); 285 } 286 287 /* 288 * Detach a mouse. To keep track of users of the softc we keep 289 * a reference count that's incremented while inside, e.g., read. 290 * If the mouse is active and the reference count is > 0 (0 is the 291 * normal state) we post an event and then wait for the process 292 * that had the reference to wake us up again. Then we blow away the 293 * vnode and return (which will deallocate the softc). 294 */ 295 int 296 wsmouse_detach(struct device *self, int flags) 297 { 298 struct wsmouse_softc *sc = (struct wsmouse_softc *)self; 299 struct wseventvar *evar; 300 int maj, mn; 301 int s; 302 303 #if NWSMUX > 0 304 /* Tell parent mux we're leaving. */ 305 if (sc->sc_base.me_parent != NULL) { 306 DPRINTF(("wsmouse_detach:\n")); 307 wsmux_detach_sc(&sc->sc_base); 308 } 309 #endif 310 311 /* If we're open ... */ 312 evar = sc->sc_base.me_evp; 313 if (evar != NULL && evar->io != NULL) { 314 s = spltty(); 315 if (--sc->sc_refcnt >= 0) { 316 struct wscons_event event; 317 318 /* Wake everyone by generating a dummy event. */ 319 event.type = 0; 320 event.value = 0; 321 if (wsevent_inject(evar, &event, 1) != 0) 322 wsevent_wakeup(evar); 323 324 /* Wait for processes to go away. */ 325 if (tsleep(sc, PZERO, "wsmdet", hz * 60)) 326 printf("wsmouse_detach: %s didn't detach\n", 327 sc->sc_base.me_dv.dv_xname); 328 } 329 splx(s); 330 } 331 332 /* locate the major number */ 333 maj = cdevsw_lookup_major(&wsmouse_cdevsw); 334 335 /* Nuke the vnodes for any open instances (calls close). */ 336 mn = self->dv_unit; 337 vdevgone(maj, mn, mn, VCHR); 338 339 return (0); 340 } 341 342 void 343 wsmouse_input_xyzw(struct device *wsmousedev, u_int btns /* 0 is up */, 344 int x, int y, int z, int w, u_int flags) 345 { 346 struct wsmouse_softc *sc = (struct wsmouse_softc *)wsmousedev; 347 struct wseventvar *evar; 348 int mb, ub, d, nevents; 349 struct wscons_event events[4 + sizeof(d) * 8]; 350 351 /* 352 * Discard input if not open. 353 */ 354 evar = sc->sc_base.me_evp; 355 if (evar == NULL) 356 return; 357 358 #ifdef DIAGNOSTIC 359 if (evar->q == NULL) { 360 printf("wsmouse_input: evar->q=NULL\n"); 361 return; 362 } 363 #endif 364 365 #if NWSMUX > 0 366 DPRINTFN(5,("wsmouse_input: %s mux=%p, evar=%p\n", 367 sc->sc_base.me_dv.dv_xname, sc->sc_base.me_parent, evar)); 368 #endif 369 370 sc->sc_mb = btns; 371 if (!(flags & WSMOUSE_INPUT_ABSOLUTE_X)) 372 sc->sc_dx += x; 373 if (!(flags & WSMOUSE_INPUT_ABSOLUTE_Y)) 374 sc->sc_dy += y; 375 if (!(flags & WSMOUSE_INPUT_ABSOLUTE_Z)) 376 sc->sc_dz += z; 377 if (!(flags & WSMOUSE_INPUT_ABSOLUTE_W)) 378 sc->sc_dw += w; 379 380 /* 381 * We have at least one event (mouse button, delta-X, or 382 * delta-Y; possibly all three, and possibly three separate 383 * button events). Deliver these events until we are out 384 * of changes or out of room. As events get delivered, 385 * mark them `unchanged'. 386 */ 387 ub = sc->sc_ub; 388 nevents = 0; 389 390 if (flags & WSMOUSE_INPUT_ABSOLUTE_X) { 391 if (sc->sc_x != x) { 392 events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_X; 393 events[nevents].value = x; 394 nevents++; 395 } 396 } else { 397 if (sc->sc_dx) { 398 events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_X; 399 events[nevents].value = sc->sc_dx; 400 nevents++; 401 } 402 } 403 if (flags & WSMOUSE_INPUT_ABSOLUTE_Y) { 404 if (sc->sc_y != y) { 405 events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_Y; 406 events[nevents].value = y; 407 nevents++; 408 } 409 } else { 410 if (sc->sc_dy) { 411 events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_Y; 412 events[nevents].value = sc->sc_dy; 413 nevents++; 414 } 415 } 416 if (flags & WSMOUSE_INPUT_ABSOLUTE_Z) { 417 if (sc->sc_z != z) { 418 events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_Z; 419 events[nevents].value = z; 420 nevents++; 421 } 422 } else { 423 if (sc->sc_dz) { 424 events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_Z; 425 events[nevents].value = sc->sc_dz; 426 nevents++; 427 } 428 } 429 if (flags & WSMOUSE_INPUT_ABSOLUTE_W) { 430 if (sc->sc_w != w) { 431 events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_W; 432 events[nevents].value = w; 433 nevents++; 434 } 435 } else { 436 if (sc->sc_dw) { 437 events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_W; 438 events[nevents].value = sc->sc_dw; 439 nevents++; 440 } 441 } 442 443 mb = sc->sc_mb; 444 while ((d = mb ^ ub) != 0) { 445 int btnno; 446 447 /* 448 * Cancel button repeating if button status changed. 449 */ 450 if (sc->sc_repeat_button != -1) { 451 KASSERT(sc->sc_repeat_button >= 0); 452 KASSERT(sc->sc_repeat.wr_buttons & 453 (1 << sc->sc_repeat_button)); 454 ub &= ~(1 << sc->sc_repeat_button); 455 sc->sc_repeat_button = -1; 456 callout_stop(&sc->sc_repeat_callout); 457 } 458 459 /* 460 * Mouse button change. Find the first change and drop 461 * it into the event queue. 462 */ 463 btnno = ffs(d) - 1; 464 KASSERT(btnno >= 0); 465 466 events[nevents].type = 467 (mb & d) ? WSCONS_EVENT_MOUSE_DOWN : WSCONS_EVENT_MOUSE_UP; 468 events[nevents].value = btnno; 469 nevents++; 470 471 ub ^= (1 << btnno); 472 473 /* 474 * Program button repeating if configured for this button. 475 */ 476 if ((mb & d) && (sc->sc_repeat.wr_buttons & (1 << btnno)) && 477 sc->sc_repeat.wr_delay_first > 0) { 478 sc->sc_repeat_button = btnno; 479 sc->sc_repeat_delay = sc->sc_repeat.wr_delay_first; 480 callout_reset(&sc->sc_repeat_callout, 481 (hz * sc->sc_repeat_delay) / 1000, wsmouse_repeat, 482 sc); 483 } 484 } 485 486 KASSERT(nevents > 0 && 487 nevents <= sizeof(events) / sizeof(struct wscons_event)); 488 489 if (wsevent_inject(evar, events, nevents) == 0) { 490 /* All events were correctly injected into the queue. 491 * Synchronize the mouse's status with what the user 492 * has received. */ 493 sc->sc_x = x; sc->sc_dx = 0; 494 sc->sc_y = y; sc->sc_dy = 0; 495 sc->sc_z = z; sc->sc_dz = 0; 496 sc->sc_w = w; sc->sc_dw = 0; 497 sc->sc_ub = ub; 498 #if NWSMUX > 0 499 DPRINTFN(5,("wsmouse_input: %s wakeup evar=%p\n", 500 sc->sc_base.me_dv.dv_xname, evar)); 501 #endif 502 } 503 } 504 505 static void 506 wsmouse_repeat(void *v) 507 { 508 int oldspl; 509 unsigned int newdelay; 510 struct wsmouse_softc *sc; 511 struct wscons_event events[2]; 512 513 oldspl = spltty(); 514 sc = (struct wsmouse_softc *)v; 515 516 if (sc->sc_repeat_button == -1) { 517 /* Race condition: a "button up" event came in when 518 * this function was already called but did not do 519 * spltty() yet. */ 520 splx(oldspl); 521 return; 522 } 523 KASSERT(sc->sc_repeat_button >= 0); 524 525 KASSERT(sc->sc_repeat.wr_buttons & (1 << sc->sc_repeat_button)); 526 527 newdelay = sc->sc_repeat_delay; 528 529 events[0].type = WSCONS_EVENT_MOUSE_UP; 530 events[0].value = sc->sc_repeat_button; 531 events[1].type = WSCONS_EVENT_MOUSE_DOWN; 532 events[1].value = sc->sc_repeat_button; 533 534 if (wsevent_inject(sc->sc_base.me_evp, events, 2) == 0) { 535 sc->sc_ub = 1 << sc->sc_repeat_button; 536 537 if (newdelay - sc->sc_repeat.wr_delay_decrement < 538 sc->sc_repeat.wr_delay_minimum) 539 newdelay = sc->sc_repeat.wr_delay_minimum; 540 else if (newdelay > sc->sc_repeat.wr_delay_minimum) 541 newdelay -= sc->sc_repeat.wr_delay_decrement; 542 KASSERT(newdelay >= sc->sc_repeat.wr_delay_minimum && 543 newdelay <= sc->sc_repeat.wr_delay_first); 544 } 545 546 /* 547 * Reprogram the repeating event. 548 */ 549 sc->sc_repeat_delay = newdelay; 550 callout_reset(&sc->sc_repeat_callout, (hz * newdelay) / 1000, 551 wsmouse_repeat, sc); 552 553 splx(oldspl); 554 } 555 556 int 557 wsmouseopen(dev_t dev, int flags, int mode, struct lwp *l) 558 { 559 struct wsmouse_softc *sc; 560 struct wseventvar *evar; 561 int error, unit; 562 563 unit = minor(dev); 564 if (unit >= wsmouse_cd.cd_ndevs || /* make sure it was attached */ 565 (sc = wsmouse_cd.cd_devs[unit]) == NULL) 566 return (ENXIO); 567 568 #if NWSMUX > 0 569 DPRINTF(("wsmouseopen: %s mux=%p p=%p\n", sc->sc_base.me_dv.dv_xname, 570 sc->sc_base.me_parent, l)); 571 #endif 572 573 if (sc->sc_dying) 574 return (EIO); 575 576 if ((flags & (FREAD | FWRITE)) == FWRITE) 577 return (0); /* always allow open for write 578 so ioctl() is possible. */ 579 580 if (sc->sc_base.me_evp != NULL) 581 return (EBUSY); 582 583 evar = &sc->sc_base.me_evar; 584 wsevent_init(evar, l->l_proc); 585 sc->sc_base.me_evp = evar; 586 587 error = wsmousedoopen(sc, evar); 588 if (error) { 589 DPRINTF(("wsmouseopen: %s open failed\n", 590 sc->sc_base.me_dv.dv_xname)); 591 sc->sc_base.me_evp = NULL; 592 wsevent_fini(evar); 593 } 594 return (error); 595 } 596 597 int 598 wsmouseclose(dev_t dev, int flags, int mode, struct lwp *l) 599 { 600 struct wsmouse_softc *sc = 601 (struct wsmouse_softc *)wsmouse_cd.cd_devs[minor(dev)]; 602 struct wseventvar *evar = sc->sc_base.me_evp; 603 604 if (evar == NULL) 605 /* not open for read */ 606 return (0); 607 sc->sc_base.me_evp = NULL; 608 (*sc->sc_accessops->disable)(sc->sc_accesscookie); 609 wsevent_fini(evar); 610 611 return (0); 612 } 613 614 int 615 wsmousedoopen(struct wsmouse_softc *sc, struct wseventvar *evp) 616 { 617 sc->sc_base.me_evp = evp; 618 sc->sc_x = INVALID_X; 619 sc->sc_y = INVALID_Y; 620 sc->sc_z = INVALID_Z; 621 622 /* Stop button repeating when messing with the device. */ 623 if (sc->sc_repeat_button != -1) { 624 KASSERT(sc->sc_repeat_button >= 0); 625 sc->sc_repeat_button = -1; 626 callout_stop(&sc->sc_repeat_callout); 627 } 628 629 /* enable the device, and punt if that's not possible */ 630 return (*sc->sc_accessops->enable)(sc->sc_accesscookie); 631 } 632 633 int 634 wsmouseread(dev_t dev, struct uio *uio, int flags) 635 { 636 struct wsmouse_softc *sc = wsmouse_cd.cd_devs[minor(dev)]; 637 int error; 638 639 if (sc->sc_dying) 640 return (EIO); 641 642 #ifdef DIAGNOSTIC 643 if (sc->sc_base.me_evp == NULL) { 644 printf("wsmouseread: evp == NULL\n"); 645 return (EINVAL); 646 } 647 #endif 648 649 sc->sc_refcnt++; 650 error = wsevent_read(sc->sc_base.me_evp, uio, flags); 651 if (--sc->sc_refcnt < 0) { 652 wakeup(sc); 653 error = EIO; 654 } 655 return (error); 656 } 657 658 int 659 wsmouseioctl(dev_t dev, u_long cmd, caddr_t data, int flag, struct lwp *l) 660 { 661 return (wsmousedoioctl(wsmouse_cd.cd_devs[minor(dev)], 662 cmd, data, flag, l)); 663 } 664 665 /* A wrapper around the ioctl() workhorse to make reference counting easy. */ 666 int 667 wsmousedoioctl(struct device *dv, u_long cmd, caddr_t data, int flag, 668 struct lwp *l) 669 { 670 struct wsmouse_softc *sc = (struct wsmouse_softc *)dv; 671 int error; 672 673 sc->sc_refcnt++; 674 error = wsmouse_do_ioctl(sc, cmd, data, flag, l); 675 if (--sc->sc_refcnt < 0) 676 wakeup(sc); 677 return (error); 678 } 679 680 int 681 wsmouse_do_ioctl(struct wsmouse_softc *sc, u_long cmd, caddr_t data, 682 int flag, struct lwp *l) 683 { 684 int error; 685 struct wsmouse_repeat *wr; 686 687 if (sc->sc_dying) 688 return (EIO); 689 690 /* 691 * Try the generic ioctls that the wsmouse interface supports. 692 */ 693 switch (cmd) { 694 case FIONBIO: /* we will remove this someday (soon???) */ 695 return (0); 696 697 case FIOASYNC: 698 if (sc->sc_base.me_evp == NULL) 699 return (EINVAL); 700 sc->sc_base.me_evp->async = *(int *)data != 0; 701 return (0); 702 703 case FIOSETOWN: 704 if (sc->sc_base.me_evp == NULL) 705 return (EINVAL); 706 if (-*(int *)data != sc->sc_base.me_evp->io->p_pgid 707 && *(int *)data != sc->sc_base.me_evp->io->p_pid) 708 return (EPERM); 709 return (0); 710 711 case TIOCSPGRP: 712 if (sc->sc_base.me_evp == NULL) 713 return (EINVAL); 714 if (*(int *)data != sc->sc_base.me_evp->io->p_pgid) 715 return (EPERM); 716 return (0); 717 } 718 719 /* 720 * Try the wsmouse specific ioctls. 721 */ 722 switch (cmd) { 723 case WSMOUSEIO_GETREPEAT: 724 wr = (struct wsmouse_repeat *)data; 725 memcpy(wr, &sc->sc_repeat, sizeof(sc->sc_repeat)); 726 return 0; 727 728 case WSMOUSEIO_SETREPEAT: 729 if ((flag & FWRITE) == 0) 730 return EACCES; 731 732 /* Validate input data. */ 733 wr = (struct wsmouse_repeat *)data; 734 if (wr->wr_delay_first != 0 && 735 (wr->wr_delay_first < wr->wr_delay_decrement || 736 wr->wr_delay_first < wr->wr_delay_minimum || 737 wr->wr_delay_first < wr->wr_delay_minimum + 738 wr->wr_delay_decrement)) 739 return EINVAL; 740 741 /* Stop current repeating and set new data. */ 742 sc->sc_repeat_button = -1; 743 callout_stop(&sc->sc_repeat_callout); 744 memcpy(&sc->sc_repeat, wr, sizeof(sc->sc_repeat)); 745 746 return 0; 747 } 748 749 /* 750 * Try the mouse driver for WSMOUSEIO ioctls. It returns -1 751 * if it didn't recognize the request. 752 */ 753 error = (*sc->sc_accessops->ioctl)(sc->sc_accesscookie, cmd, 754 data, flag, l); 755 return (error); /* may be EPASSTHROUGH */ 756 } 757 758 int 759 wsmousepoll(dev_t dev, int events, struct lwp *l) 760 { 761 struct wsmouse_softc *sc = wsmouse_cd.cd_devs[minor(dev)]; 762 763 if (sc->sc_base.me_evp == NULL) 764 return (POLLERR); 765 return (wsevent_poll(sc->sc_base.me_evp, events, l)); 766 } 767 768 int 769 wsmousekqfilter(dev_t dev, struct knote *kn) 770 { 771 struct wsmouse_softc *sc = wsmouse_cd.cd_devs[minor(dev)]; 772 773 if (sc->sc_base.me_evp == NULL) 774 return (1); 775 return (wsevent_kqfilter(sc->sc_base.me_evp, kn)); 776 } 777 778 #if NWSMUX > 0 779 int 780 wsmouse_mux_open(struct wsevsrc *me, struct wseventvar *evp) 781 { 782 struct wsmouse_softc *sc = (struct wsmouse_softc *)me; 783 784 if (sc->sc_base.me_evp != NULL) 785 return (EBUSY); 786 787 return wsmousedoopen(sc, evp); 788 } 789 790 int 791 wsmouse_mux_close(struct wsevsrc *me) 792 { 793 struct wsmouse_softc *sc = (struct wsmouse_softc *)me; 794 795 sc->sc_base.me_evp = NULL; 796 (*sc->sc_accessops->disable)(sc->sc_accesscookie); 797 798 return (0); 799 } 800 801 int 802 wsmouse_add_mux(int unit, struct wsmux_softc *muxsc) 803 { 804 struct wsmouse_softc *sc; 805 806 if (unit < 0 || unit >= wsmouse_cd.cd_ndevs || 807 (sc = wsmouse_cd.cd_devs[unit]) == NULL) 808 return (ENXIO); 809 810 if (sc->sc_base.me_parent != NULL || sc->sc_base.me_evp != NULL) 811 return (EBUSY); 812 813 return (wsmux_attach_sc(muxsc, &sc->sc_base)); 814 } 815 #endif /* NWSMUX > 0 */ 816
Indexes created Sun Sep 28 16:09:52 GMT 2025