| 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 | |