ms.c revision 1.21.2.1
1 /* $NetBSD: ms.c,v 1.21.2.1 2009/05/13 17:16:22 jym Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Leo Weppelman. 5 * All rights reserved. 6 * 7 * based on: 8 * 9 * Copyright (c) 1992, 1993 10 * The Regents of the University of California. All rights reserved. 11 * 12 * This software was developed by the Computer Systems Engineering group 13 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 14 * contributed to Berkeley. 15 * 16 * All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by the University of 19 * California, Lawrence Berkeley Laboratory. 20 * 21 * Redistribution and use in source and binary forms, with or without 22 * modification, are permitted provided that the following conditions 23 * are met: 24 * 1. Redistributions of source code must retain the above copyright 25 * notice, this list of conditions and the following disclaimer. 26 * 2. Redistributions in binary form must reproduce the above copyright 27 * notice, this list of conditions and the following disclaimer in the 28 * documentation and/or other materials provided with the distribution. 29 * 3. Neither the name of the University nor the names of its contributors 30 * may be used to endorse or promote products derived from this software 31 * without specific prior written permission. 32 * 33 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 34 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 35 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 36 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 37 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 38 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 39 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 41 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 42 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 43 * SUCH DAMAGE. 44 * 45 * @(#)ms.c 8.1 (Berkeley) 6/11/93 46 * 47 * Header: ms.c,v 1.5 92/11/26 01:28:47 torek Exp (LBL) 48 */ 49 50 /* 51 * Mouse driver. 52 */ 53 54 #include <sys/cdefs.h> 55 __KERNEL_RCSID(0, "$NetBSD: ms.c,v 1.21.2.1 2009/05/13 17:16:22 jym Exp $"); 56 57 #include <sys/param.h> 58 #include <sys/conf.h> 59 #include <sys/ioctl.h> 60 #include <sys/kernel.h> 61 #include <sys/proc.h> 62 #include <sys/systm.h> 63 #include <sys/callout.h> 64 #include <sys/tty.h> 65 #include <sys/signalvar.h> 66 67 #include <machine/msioctl.h> 68 #include <atari/dev/event_var.h> 69 #include <atari/dev/vuid_event.h> 70 #include <atari/dev/kbdvar.h> 71 #include <atari/dev/msvar.h> 72 73 #include "mouse.h" 74 #if NMOUSE > 0 75 76 /* there's really no more physical ports on an atari. */ 77 #if NMOUSE > 1 78 #undef NMOUSE 79 #define NMOUSE 1 80 #endif 81 82 typedef void (*FPV)(void *); 83 84 static struct ms_softc ms_softc[NMOUSE]; 85 86 dev_type_open(msopen); 87 dev_type_close(msclose); 88 dev_type_read(msread); 89 dev_type_ioctl(msioctl); 90 dev_type_poll(mspoll); 91 dev_type_kqfilter(mskqfilter); 92 93 const struct cdevsw ms_cdevsw = { 94 msopen, msclose, msread, nowrite, msioctl, 95 nostop, notty, mspoll, nommap, mskqfilter, 96 }; 97 98 static void ms_3b_delay(struct ms_softc *); 99 100 int 101 mouseattach(int cnt) 102 { 103 printf("1 mouse configured\n"); 104 ms_softc[0].ms_emul3b = 1; 105 callout_init(&ms_softc[0].ms_delay_ch, 0); 106 return(NMOUSE); 107 } 108 109 static void 110 ms_3b_delay(struct ms_softc *ms) 111 { 112 REL_MOUSE rel_ms; 113 114 rel_ms.id = TIMEOUT_ID; 115 rel_ms.dx = rel_ms.dy = 0; 116 mouse_soft(&rel_ms, sizeof(rel_ms), KBD_TIMEO_PKG); 117 } 118 /* 119 * Note that we are called from the keyboard software interrupt! 120 */ 121 void 122 mouse_soft(REL_MOUSE *rel_ms, int size, int type) 123 { 124 struct ms_softc *ms = &ms_softc[0]; 125 struct firm_event *fe, *fe2; 126 REL_MOUSE fake_mouse; 127 int get, put; 128 int sps; 129 u_char mbut, bmask; 130 int flush_buttons; 131 132 if (ms->ms_events.ev_io == NULL) 133 return; 134 135 switch (type) { 136 case KBD_JOY1_PKG: 137 /* 138 * Ignore if in emulation mode 139 */ 140 if (ms->ms_emul3b) 141 return; 142 143 /* 144 * There are some mice that have their middle button 145 * wired to the 'up' bit of joystick 1.... 146 * Simulate a mouse packet with dx = dy = 0, the middle 147 * button state set by UP and the other buttons unchanged. 148 * Flush all button changes. 149 */ 150 flush_buttons = 1; 151 fake_mouse.id = (rel_ms->dx & 1 ? 4 : 0) | (ms->ms_buttons & 3); 152 fake_mouse.dx = fake_mouse.dy = 0; 153 rel_ms = &fake_mouse; 154 break; 155 case KBD_TIMEO_PKG: 156 /* 157 * Timeout package. No button changes and no movement. 158 * Flush all button changes. 159 */ 160 flush_buttons = 1; 161 fake_mouse.id = ms->ms_buttons; 162 fake_mouse.dx = fake_mouse.dy = 0; 163 rel_ms = &fake_mouse; 164 break; 165 case KBD_RMS_PKG: 166 /* 167 * Normal mouse package. Always copy the middle button 168 * status. The emulation code decides if button changes 169 * must be flushed. 170 */ 171 rel_ms->id = (ms->ms_buttons & 4) | (rel_ms->id & 3); 172 flush_buttons = (ms->ms_emul3b) ? 0 : 1; 173 break; 174 default: 175 return; 176 } 177 178 sps = splev(); 179 get = ms->ms_events.ev_get; 180 put = ms->ms_events.ev_put; 181 fe = &ms->ms_events.ev_q[put]; 182 183 if ((type != KBD_TIMEO_PKG) && ms->ms_emul3b && ms->ms_bq_idx) 184 callout_stop(&ms->ms_delay_ch); 185 186 /* 187 * Button states are encoded in the lower 3 bits of 'id' 188 */ 189 if (!(mbut = (rel_ms->id ^ ms->ms_buttons)) && (put != get)) { 190 /* 191 * Compact dx/dy messages. Always generate an event when 192 * a button is pressed or the event queue is empty. 193 */ 194 ms->ms_dx += rel_ms->dx; 195 ms->ms_dy += rel_ms->dy; 196 goto out; 197 } 198 rel_ms->dx += ms->ms_dx; 199 rel_ms->dy += ms->ms_dy; 200 ms->ms_dx = ms->ms_dy = 0; 201 202 /* 203 * Output location events _before_ button events ie. make sure 204 * the button is pressed at the correct location. 205 */ 206 if (rel_ms->dx) { 207 if ((++put) % EV_QSIZE == get) { 208 put--; 209 goto out; 210 } 211 fe->id = LOC_X_DELTA; 212 fe->value = rel_ms->dx; 213 firm_gettime(fe); 214 if (put >= EV_QSIZE) { 215 put = 0; 216 fe = &ms->ms_events.ev_q[0]; 217 } 218 else fe++; 219 } 220 if (rel_ms->dy) { 221 if ((++put) % EV_QSIZE == get) { 222 put--; 223 goto out; 224 } 225 fe->id = LOC_Y_DELTA; 226 fe->value = rel_ms->dy; 227 firm_gettime(fe); 228 if (put >= EV_QSIZE) { 229 put = 0; 230 fe = &ms->ms_events.ev_q[0]; 231 } 232 else fe++; 233 } 234 if (mbut && (type != KBD_TIMEO_PKG)) { 235 for (bmask = 1; bmask < 0x08; bmask <<= 1) { 236 if (!(mbut & bmask)) 237 continue; 238 fe2 = &ms->ms_bq[ms->ms_bq_idx++]; 239 if (bmask == 1) 240 fe2->id = MS_RIGHT; 241 else if (bmask == 2) 242 fe2->id = MS_LEFT; 243 else fe2->id = MS_MIDDLE; 244 fe2->value = rel_ms->id & bmask ? VKEY_DOWN : VKEY_UP; 245 firm_gettime(fe2); 246 } 247 } 248 249 /* 250 * Handle 3rd button emulation. 251 */ 252 if (ms->ms_emul3b && ms->ms_bq_idx && (type != KBD_TIMEO_PKG)) { 253 /* 254 * If the middle button is pressed, any change to 255 * one of the other buttons releases all. 256 */ 257 if ((ms->ms_buttons & 4) && (mbut & 3)) { 258 ms->ms_bq[0].id = MS_MIDDLE; 259 ms->ms_bq_idx = 1; 260 rel_ms->id = 0; 261 flush_buttons = 1; 262 goto out; 263 } 264 if (ms->ms_bq_idx == 2) { 265 if (ms->ms_bq[0].value == ms->ms_bq[1].value) { 266 /* Must be 2 button presses! */ 267 ms->ms_bq[0].id = MS_MIDDLE; 268 ms->ms_bq_idx = 1; 269 rel_ms->id = 7; 270 } 271 } 272 else if (ms->ms_bq[0].value == VKEY_DOWN) { 273 callout_reset(&ms->ms_delay_ch, 10, 274 (FPV)ms_3b_delay, (void *)ms); 275 goto out; 276 } 277 flush_buttons = 1; 278 } 279 out: 280 if (flush_buttons) { 281 int i; 282 283 for (i = 0; i < ms->ms_bq_idx; i++) { 284 if ((++put) % EV_QSIZE == get) { 285 ms->ms_bq_idx = 0; 286 put--; 287 goto out; 288 } 289 *fe = ms->ms_bq[i]; 290 if (put >= EV_QSIZE) { 291 put = 0; 292 fe = &ms->ms_events.ev_q[0]; 293 } 294 else fe++; 295 } 296 ms->ms_bq_idx = 0; 297 } 298 ms->ms_events.ev_put = put; 299 ms->ms_buttons = rel_ms->id; 300 splx(sps); 301 EV_WAKEUP(&ms->ms_events); 302 } 303 304 int 305 msopen(dev_t dev, int flags, int mode, struct lwp *l) 306 { 307 u_char report_ms_joy[] = { 0x14, 0x08 }; 308 struct ms_softc *ms; 309 int unit; 310 311 unit = minor(dev); 312 ms = &ms_softc[unit]; 313 314 if (unit >= NMOUSE) 315 return(EXDEV); 316 317 if (ms->ms_events.ev_io) 318 return(EBUSY); 319 320 ms->ms_events.ev_io = l->l_proc; 321 ms->ms_dx = ms->ms_dy = 0; 322 ms->ms_buttons = 0; 323 ms->ms_bq[0].id = ms->ms_bq[1].id = 0; 324 ms->ms_bq_idx = 0; 325 ev_init(&ms->ms_events); /* may cause sleep */ 326 327 /* 328 * Enable mouse reporting. 329 */ 330 kbd_write(report_ms_joy, sizeof(report_ms_joy)); 331 return(0); 332 } 333 334 int 335 msclose(dev_t dev, int flags, int mode, struct lwp *l) 336 { 337 u_char disable_ms_joy[] = { 0x12, 0x1a }; 338 int unit; 339 struct ms_softc *ms; 340 341 unit = minor (dev); 342 ms = &ms_softc[unit]; 343 344 /* 345 * Turn off mouse interrogation. 346 */ 347 kbd_write(disable_ms_joy, sizeof(disable_ms_joy)); 348 ev_fini(&ms->ms_events); 349 ms->ms_events.ev_io = NULL; 350 return(0); 351 } 352 353 int 354 msread(dev_t dev, struct uio *uio, int flags) 355 { 356 struct ms_softc *ms; 357 358 ms = &ms_softc[minor(dev)]; 359 return(ev_read(&ms->ms_events, uio, flags)); 360 } 361 362 int 363 msioctl(dev_t dev, u_long cmd, register void * data, int flag, struct lwp *l) 364 { 365 struct ms_softc *ms; 366 int unit; 367 368 unit = minor(dev); 369 ms = &ms_softc[unit]; 370 371 switch (cmd) { 372 case MIOCS3B_EMUL: 373 ms->ms_emul3b = (*(int *)data != 0) ? 1 : 0; 374 return (0); 375 case MIOCG3B_EMUL: 376 *(int *)data = ms->ms_emul3b; 377 return (0); 378 case FIONBIO: /* we will remove this someday (soon???) */ 379 return(0); 380 case FIOASYNC: 381 ms->ms_events.ev_async = *(int *)data != 0; 382 return(0); 383 case FIOSETOWN: 384 if (-*(int *)data != ms->ms_events.ev_io->p_pgid 385 && *(int *)data != ms->ms_events.ev_io->p_pid) 386 return(EPERM); 387 return(0); 388 case TIOCSPGRP: 389 if (*(int *)data != ms->ms_events.ev_io->p_pgid) 390 return(EPERM); 391 return(0); 392 case VUIDGFORMAT: /* we only do firm_events */ 393 *(int *)data = VUID_FIRM_EVENT; 394 return(0); 395 case VUIDSFORMAT: 396 if (*(int *)data != VUID_FIRM_EVENT) 397 return(EINVAL); 398 return(0); 399 } 400 return(ENOTTY); 401 } 402 403 int 404 mspoll(dev_t dev, int events, struct lwp *l) 405 { 406 struct ms_softc *ms; 407 408 ms = &ms_softc[minor(dev)]; 409 return(ev_poll(&ms->ms_events, events, l)); 410 } 411 412 int 413 mskqfilter(dev_t dev, struct knote *kn) 414 { 415 struct ms_softc *ms; 416 417 ms = &ms_softc[minor(dev)]; 418 return (ev_kqfilter(&ms->ms_events, kn)); 419 } 420 #endif /* NMOUSE > 0 */ 421
Indexes created Wed Oct 01 19:09:53 GMT 2025