wsmouse.c revision 1.52.6.2
1 /* $NetBSD: wsmouse.c,v 1.52.6.2 2007/10/26 15:48:09 joerg 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 1.52.6.2 2007/10/26 15:48:09 joerg 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 callout_t 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, void *, 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, void *, 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, D_OTHER 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, 237 void *aux) 238 { 239 return (1); 240 } 241 242 void 243 wsmouse_attach(struct device *parent, struct device *self, void *aux) 244 { 245 struct wsmouse_softc *sc = (struct wsmouse_softc *)self; 246 struct wsmousedev_attach_args *ap = aux; 247 #if NWSMUX > 0 248 int mux, error; 249 #endif 250 251 sc->sc_accessops = ap->accessops; 252 sc->sc_accesscookie = ap->accesscookie; 253 254 /* Initialize button repeating. */ 255 memset(&sc->sc_repeat, 0, sizeof(sc->sc_repeat)); 256 sc->sc_repeat_button = -1; 257 sc->sc_repeat_delay = 0; 258 callout_init(&sc->sc_repeat_callout, 0); 259 callout_setfunc(&sc->sc_repeat_callout, wsmouse_repeat, sc); 260 261 #if NWSMUX > 0 262 sc->sc_base.me_ops = &wsmouse_srcops; 263 mux = device_cfdata(&sc->sc_base.me_dv)->wsmousedevcf_mux; 264 if (mux >= 0) { 265 error = wsmux_attach_sc(wsmux_getmux(mux), &sc->sc_base); 266 if (error) 267 printf(" attach error=%d", error); 268 else 269 printf(" mux %d", mux); 270 } 271 #else 272 if (device_cfdata(&sc->sc_base.me_dv)->wsmousedevcf_mux >= 0) 273 printf(" (mux ignored)"); 274 #endif 275 276 printf("\n"); 277 278 (void)pnp_register(self, pnp_generic_power); 279 } 280 281 int 282 wsmouse_activate(struct device *self, enum devact act) 283 { 284 struct wsmouse_softc *sc = (struct wsmouse_softc *)self; 285 286 if (act == DVACT_DEACTIVATE) 287 sc->sc_dying = 1; 288 return (0); 289 } 290 291 /* 292 * Detach a mouse. To keep track of users of the softc we keep 293 * a reference count that's incremented while inside, e.g., read. 294 * If the mouse is active and the reference count is > 0 (0 is the 295 * normal state) we post an event and then wait for the process 296 * that had the reference to wake us up again. Then we blow away the 297 * vnode and return (which will deallocate the softc). 298 */ 299 int 300 wsmouse_detach(struct device *self, int flags) 301 { 302 struct wsmouse_softc *sc = (struct wsmouse_softc *)self; 303 struct wseventvar *evar; 304 int maj, mn; 305 int s; 306 307 #if NWSMUX > 0 308 /* Tell parent mux we're leaving. */ 309 if (sc->sc_base.me_parent != NULL) { 310 DPRINTF(("wsmouse_detach:\n")); 311 wsmux_detach_sc(&sc->sc_base); 312 } 313 #endif 314 315 /* If we're open ... */ 316 evar = sc->sc_base.me_evp; 317 if (evar != NULL && evar->io != NULL) { 318 s = spltty(); 319 if (--sc->sc_refcnt >= 0) { 320 struct wscons_event event; 321 322 /* Wake everyone by generating a dummy event. */ 323 event.type = 0; 324 event.value = 0; 325 if (wsevent_inject(evar, &event, 1) != 0) 326 wsevent_wakeup(evar); 327 328 /* Wait for processes to go away. */ 329 if (tsleep(sc, PZERO, "wsmdet", hz * 60)) 330 printf("wsmouse_detach: %s didn't detach\n", 331 sc->sc_base.me_dv.dv_xname); 332 } 333 splx(s); 334 } 335 336 /* locate the major number */ 337 maj = cdevsw_lookup_major(&wsmouse_cdevsw); 338 339 /* Nuke the vnodes for any open instances (calls close). */ 340 mn = device_unit(self); 341 vdevgone(maj, mn, mn, VCHR); 342 343 return (0); 344 } 345 346 void 347 wsmouse_input(struct device *wsmousedev, u_int btns /* 0 is up */, 348 int x, int y, int z, int w, u_int flags) 349 { 350 struct wsmouse_softc *sc = (struct wsmouse_softc *)wsmousedev; 351 struct wseventvar *evar; 352 int mb, ub, d, nevents; 353 /* one for each dimension (4) + a bit for each button */ 354 struct wscons_event events[4 + sizeof(d) * 8]; 355 356 /* 357 * Discard input if not open. 358 */ 359 evar = sc->sc_base.me_evp; 360 if (evar == NULL) 361 return; 362 363 #ifdef DIAGNOSTIC 364 if (evar->q == NULL) { 365 printf("wsmouse_input: evar->q=NULL\n"); 366 return; 367 } 368 #endif 369 370 #if NWSMUX > 0 371 DPRINTFN(5,("wsmouse_input: %s mux=%p, evar=%p\n", 372 sc->sc_base.me_dv.dv_xname, sc->sc_base.me_parent, evar)); 373 #endif 374 375 sc->sc_mb = btns; 376 if (!(flags & WSMOUSE_INPUT_ABSOLUTE_X)) 377 sc->sc_dx += x; 378 if (!(flags & WSMOUSE_INPUT_ABSOLUTE_Y)) 379 sc->sc_dy += y; 380 if (!(flags & WSMOUSE_INPUT_ABSOLUTE_Z)) 381 sc->sc_dz += z; 382 if (!(flags & WSMOUSE_INPUT_ABSOLUTE_W)) 383 sc->sc_dw += w; 384 385 /* 386 * We have at least one event (mouse button, delta-X, or 387 * delta-Y; possibly all three, and possibly three separate 388 * button events). Deliver these events until we are out 389 * of changes or out of room. As events get delivered, 390 * mark them `unchanged'. 391 */ 392 ub = sc->sc_ub; 393 nevents = 0; 394 395 if (flags & WSMOUSE_INPUT_ABSOLUTE_X) { 396 if (sc->sc_x != x) { 397 events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_X; 398 events[nevents].value = x; 399 nevents++; 400 } 401 } else { 402 if (sc->sc_dx) { 403 events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_X; 404 events[nevents].value = sc->sc_dx; 405 nevents++; 406 } 407 } 408 if (flags & WSMOUSE_INPUT_ABSOLUTE_Y) { 409 if (sc->sc_y != y) { 410 events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_Y; 411 events[nevents].value = y; 412 nevents++; 413 } 414 } else { 415 if (sc->sc_dy) { 416 events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_Y; 417 events[nevents].value = sc->sc_dy; 418 nevents++; 419 } 420 } 421 if (flags & WSMOUSE_INPUT_ABSOLUTE_Z) { 422 if (sc->sc_z != z) { 423 events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_Z; 424 events[nevents].value = z; 425 nevents++; 426 } 427 } else { 428 if (sc->sc_dz) { 429 events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_Z; 430 events[nevents].value = sc->sc_dz; 431 nevents++; 432 } 433 } 434 if (flags & WSMOUSE_INPUT_ABSOLUTE_W) { 435 if (sc->sc_w != w) { 436 events[nevents].type = WSCONS_EVENT_MOUSE_ABSOLUTE_W; 437 events[nevents].value = w; 438 nevents++; 439 } 440 } else { 441 if (sc->sc_dw) { 442 events[nevents].type = WSCONS_EVENT_MOUSE_DELTA_W; 443 events[nevents].value = sc->sc_dw; 444 nevents++; 445 } 446 } 447 448 mb = sc->sc_mb; 449 while ((d = mb ^ ub) != 0) { 450 int btnno; 451 452 /* 453 * Cancel button repeating if button status changed. 454 */ 455 if (sc->sc_repeat_button != -1) { 456 KASSERT(sc->sc_repeat_button >= 0); 457 KASSERT(sc->sc_repeat.wr_buttons & 458 (1 << sc->sc_repeat_button)); 459 ub &= ~(1 << sc->sc_repeat_button); 460 sc->sc_repeat_button = -1; 461 callout_stop(&sc->sc_repeat_callout); 462 } 463 464 /* 465 * Mouse button change. Find the first change and drop 466 * it into the event queue. 467 */ 468 btnno = ffs(d) - 1; 469 KASSERT(btnno >= 0); 470 471 if (nevents >= sizeof(events) / sizeof(events[0])) { 472 printf("%s: Event queue full (button status mb=0x%x" 473 " ub=0x%x)\n", sc->sc_base.me_dv.dv_xname, mb, ub); 474 break; 475 } 476 477 events[nevents].type = 478 (mb & d) ? WSCONS_EVENT_MOUSE_DOWN : WSCONS_EVENT_MOUSE_UP; 479 events[nevents].value = btnno; 480 nevents++; 481 482 ub ^= (1 << btnno); 483 484 /* 485 * Program button repeating if configured for this button. 486 */ 487 if ((mb & d) && (sc->sc_repeat.wr_buttons & (1 << btnno)) && 488 sc->sc_repeat.wr_delay_first > 0) { 489 sc->sc_repeat_button = btnno; 490 sc->sc_repeat_delay = sc->sc_repeat.wr_delay_first; 491 callout_schedule(&sc->sc_repeat_callout, 492 mstohz(sc->sc_repeat_delay)); 493 } 494 } 495 496 if (nevents == 0 || wsevent_inject(evar, events, nevents) == 0) { 497 /* All events were correctly injected into the queue. 498 * Synchronize the mouse's status with what the user 499 * has received. */ 500 sc->sc_x = x; sc->sc_dx = 0; 501 sc->sc_y = y; sc->sc_dy = 0; 502 sc->sc_z = z; sc->sc_dz = 0; 503 sc->sc_w = w; sc->sc_dw = 0; 504 sc->sc_ub = ub; 505 #if NWSMUX > 0 506 DPRINTFN(5,("wsmouse_input: %s wakeup evar=%p\n", 507 sc->sc_base.me_dv.dv_xname, evar)); 508 #endif 509 } 510 } 511 512 static void 513 wsmouse_repeat(void *v) 514 { 515 int oldspl; 516 unsigned int newdelay; 517 struct wsmouse_softc *sc; 518 struct wscons_event events[2]; 519 520 oldspl = spltty(); 521 sc = (struct wsmouse_softc *)v; 522 523 if (sc->sc_repeat_button == -1) { 524 /* Race condition: a "button up" event came in when 525 * this function was already called but did not do 526 * spltty() yet. */ 527 splx(oldspl); 528 return; 529 } 530 KASSERT(sc->sc_repeat_button >= 0); 531 532 KASSERT(sc->sc_repeat.wr_buttons & (1 << sc->sc_repeat_button)); 533 534 newdelay = sc->sc_repeat_delay; 535 536 events[0].type = WSCONS_EVENT_MOUSE_UP; 537 events[0].value = sc->sc_repeat_button; 538 events[1].type = WSCONS_EVENT_MOUSE_DOWN; 539 events[1].value = sc->sc_repeat_button; 540 541 if (wsevent_inject(sc->sc_base.me_evp, events, 2) == 0) { 542 sc->sc_ub = 1 << sc->sc_repeat_button; 543 544 if (newdelay - sc->sc_repeat.wr_delay_decrement < 545 sc->sc_repeat.wr_delay_minimum) 546 newdelay = sc->sc_repeat.wr_delay_minimum; 547 else if (newdelay > sc->sc_repeat.wr_delay_minimum) 548 newdelay -= sc->sc_repeat.wr_delay_decrement; 549 KASSERT(newdelay >= sc->sc_repeat.wr_delay_minimum && 550 newdelay <= sc->sc_repeat.wr_delay_first); 551 } 552 553 /* 554 * Reprogram the repeating event. 555 */ 556 sc->sc_repeat_delay = newdelay; 557 callout_schedule(&sc->sc_repeat_callout, mstohz(newdelay)); 558 559 splx(oldspl); 560 } 561 562 int 563 wsmouseopen(dev_t dev, int flags, int mode, struct lwp *l) 564 { 565 struct wsmouse_softc *sc; 566 struct wseventvar *evar; 567 int error, unit; 568 569 unit = minor(dev); 570 if (unit >= wsmouse_cd.cd_ndevs || /* make sure it was attached */ 571 (sc = wsmouse_cd.cd_devs[unit]) == NULL) 572 return (ENXIO); 573 574 #if NWSMUX > 0 575 DPRINTF(("wsmouseopen: %s mux=%p p=%p\n", sc->sc_base.me_dv.dv_xname, 576 sc->sc_base.me_parent, l)); 577 #endif 578 579 if (sc->sc_dying) 580 return (EIO); 581 582 if ((flags & (FREAD | FWRITE)) == FWRITE) 583 return (0); /* always allow open for write 584 so ioctl() is possible. */ 585 586 if (sc->sc_base.me_evp != NULL) 587 return (EBUSY); 588 589 evar = &sc->sc_base.me_evar; 590 wsevent_init(evar, l->l_proc); 591 sc->sc_base.me_evp = evar; 592 593 error = wsmousedoopen(sc, evar); 594 if (error) { 595 DPRINTF(("wsmouseopen: %s open failed\n", 596 sc->sc_base.me_dv.dv_xname)); 597 sc->sc_base.me_evp = NULL; 598 wsevent_fini(evar); 599 } 600 return (error); 601 } 602 603 int 604 wsmouseclose(dev_t dev, int flags, int mode, 605 struct lwp *l) 606 { 607 struct wsmouse_softc *sc = 608 (struct wsmouse_softc *)wsmouse_cd.cd_devs[minor(dev)]; 609 struct wseventvar *evar = sc->sc_base.me_evp; 610 611 if (evar == NULL) 612 /* not open for read */ 613 return (0); 614 sc->sc_base.me_evp = NULL; 615 (*sc->sc_accessops->disable)(sc->sc_accesscookie); 616 wsevent_fini(evar); 617 618 return (0); 619 } 620 621 int 622 wsmousedoopen(struct wsmouse_softc *sc, struct wseventvar *evp) 623 { 624 sc->sc_base.me_evp = evp; 625 sc->sc_x = INVALID_X; 626 sc->sc_y = INVALID_Y; 627 sc->sc_z = INVALID_Z; 628 629 /* Stop button repeating when messing with the device. */ 630 if (sc->sc_repeat_button != -1) { 631 KASSERT(sc->sc_repeat_button >= 0); 632 sc->sc_repeat_button = -1; 633 callout_stop(&sc->sc_repeat_callout); 634 } 635 636 /* enable the device, and punt if that's not possible */ 637 return (*sc->sc_accessops->enable)(sc->sc_accesscookie); 638 } 639 640 int 641 wsmouseread(dev_t dev, struct uio *uio, int flags) 642 { 643 struct wsmouse_softc *sc = wsmouse_cd.cd_devs[minor(dev)]; 644 int error; 645 646 if (sc->sc_dying) 647 return (EIO); 648 649 #ifdef DIAGNOSTIC 650 if (sc->sc_base.me_evp == NULL) { 651 printf("wsmouseread: evp == NULL\n"); 652 return (EINVAL); 653 } 654 #endif 655 656 sc->sc_refcnt++; 657 error = wsevent_read(sc->sc_base.me_evp, uio, flags); 658 if (--sc->sc_refcnt < 0) { 659 wakeup(sc); 660 error = EIO; 661 } 662 return (error); 663 } 664 665 int 666 wsmouseioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l) 667 { 668 return (wsmousedoioctl(wsmouse_cd.cd_devs[minor(dev)], 669 cmd, data, flag, l)); 670 } 671 672 /* A wrapper around the ioctl() workhorse to make reference counting easy. */ 673 int 674 wsmousedoioctl(struct device *dv, u_long cmd, void *data, int flag, 675 struct lwp *l) 676 { 677 struct wsmouse_softc *sc = (struct wsmouse_softc *)dv; 678 int error; 679 680 sc->sc_refcnt++; 681 error = wsmouse_do_ioctl(sc, cmd, data, flag, l); 682 if (--sc->sc_refcnt < 0) 683 wakeup(sc); 684 return (error); 685 } 686 687 int 688 wsmouse_do_ioctl(struct wsmouse_softc *sc, u_long cmd, void *data, 689 int flag, struct lwp *l) 690 { 691 int error; 692 struct wsmouse_repeat *wr; 693 694 if (sc->sc_dying) 695 return (EIO); 696 697 /* 698 * Try the generic ioctls that the wsmouse interface supports. 699 */ 700 switch (cmd) { 701 case FIONBIO: /* we will remove this someday (soon???) */ 702 return (0); 703 704 case FIOASYNC: 705 if (sc->sc_base.me_evp == NULL) 706 return (EINVAL); 707 sc->sc_base.me_evp->async = *(int *)data != 0; 708 return (0); 709 710 case FIOSETOWN: 711 if (sc->sc_base.me_evp == NULL) 712 return (EINVAL); 713 if (-*(int *)data != sc->sc_base.me_evp->io->p_pgid 714 && *(int *)data != sc->sc_base.me_evp->io->p_pid) 715 return (EPERM); 716 return (0); 717 718 case TIOCSPGRP: 719 if (sc->sc_base.me_evp == NULL) 720 return (EINVAL); 721 if (*(int *)data != sc->sc_base.me_evp->io->p_pgid) 722 return (EPERM); 723 return (0); 724 } 725 726 /* 727 * Try the wsmouse specific ioctls. 728 */ 729 switch (cmd) { 730 case WSMOUSEIO_GETREPEAT: 731 wr = (struct wsmouse_repeat *)data; 732 memcpy(wr, &sc->sc_repeat, sizeof(sc->sc_repeat)); 733 return 0; 734 735 case WSMOUSEIO_SETREPEAT: 736 if ((flag & FWRITE) == 0) 737 return EACCES; 738 739 /* Validate input data. */ 740 wr = (struct wsmouse_repeat *)data; 741 if (wr->wr_delay_first != 0 && 742 (wr->wr_delay_first < wr->wr_delay_decrement || 743 wr->wr_delay_first < wr->wr_delay_minimum || 744 wr->wr_delay_first < wr->wr_delay_minimum + 745 wr->wr_delay_decrement)) 746 return EINVAL; 747 748 /* Stop current repeating and set new data. */ 749 sc->sc_repeat_button = -1; 750 callout_stop(&sc->sc_repeat_callout); 751 memcpy(&sc->sc_repeat, wr, sizeof(sc->sc_repeat)); 752 753 return 0; 754 } 755 756 /* 757 * Try the mouse driver for WSMOUSEIO ioctls. It returns -1 758 * if it didn't recognize the request. 759 */ 760 error = (*sc->sc_accessops->ioctl)(sc->sc_accesscookie, cmd, 761 data, flag, l); 762 return (error); /* may be EPASSTHROUGH */ 763 } 764 765 int 766 wsmousepoll(dev_t dev, int events, struct lwp *l) 767 { 768 struct wsmouse_softc *sc = wsmouse_cd.cd_devs[minor(dev)]; 769 770 if (sc->sc_base.me_evp == NULL) 771 return (POLLERR); 772 return (wsevent_poll(sc->sc_base.me_evp, events, l)); 773 } 774 775 int 776 wsmousekqfilter(dev_t dev, struct knote *kn) 777 { 778 struct wsmouse_softc *sc = wsmouse_cd.cd_devs[minor(dev)]; 779 780 if (sc->sc_base.me_evp == NULL) 781 return (1); 782 return (wsevent_kqfilter(sc->sc_base.me_evp, kn)); 783 } 784 785 #if NWSMUX > 0 786 int 787 wsmouse_mux_open(struct wsevsrc *me, struct wseventvar *evp) 788 { 789 struct wsmouse_softc *sc = (struct wsmouse_softc *)me; 790 791 if (sc->sc_base.me_evp != NULL) 792 return (EBUSY); 793 794 return wsmousedoopen(sc, evp); 795 } 796 797 int 798 wsmouse_mux_close(struct wsevsrc *me) 799 { 800 struct wsmouse_softc *sc = (struct wsmouse_softc *)me; 801 802 sc->sc_base.me_evp = NULL; 803 (*sc->sc_accessops->disable)(sc->sc_accesscookie); 804 805 return (0); 806 } 807 808 int 809 wsmouse_add_mux(int unit, struct wsmux_softc *muxsc) 810 { 811 struct wsmouse_softc *sc; 812 813 if (unit < 0 || unit >= wsmouse_cd.cd_ndevs || 814 (sc = wsmouse_cd.cd_devs[unit]) == NULL) 815 return (ENXIO); 816 817 if (sc->sc_base.me_parent != NULL || sc->sc_base.me_evp != NULL) 818 return (EBUSY); 819 820 return (wsmux_attach_sc(muxsc, &sc->sc_base)); 821 } 822 #endif /* NWSMUX > 0 */ 823
Indexes created Mon Oct 20 11:09:49 GMT 2025