synaptics.c revision 1.16
1 /* $NetBSD: synaptics.c,v 1.16 2007/10/19 12:01:03 ad Exp $ */ 2 3 /* 4 * Copyright (c) 2005, Steve C. Woodford 5 * Copyright (c) 2004, Ales Krenek 6 * Copyright (c) 2004, Kentaro A. Kurahone 7 * All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 13 * * Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * * Redistributions in binary form must reproduce the above 16 * copyright notice, this list of conditions and the following 17 * disclaimer in the documentation and/or other materials provided 18 * with the distribution. 19 * * Neither the name of the authors nor the names of its 20 * contributors may be used to endorse or promote products derived 21 * from this software without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 26 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 27 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 28 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 29 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 30 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER 31 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 33 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34 * POSSIBILITY OF SUCH DAMAGE. 35 * 36 */ 37 38 /* 39 * TODO: 40 * - Make the sysctl values per-instance instead of global. 41 * - Consider setting initial scaling factors at runtime according 42 * to the values returned by the 'Read Resolutions' command. 43 * - Support the serial protocol (we only support PS/2 for now) 44 * - Support auto-repeat for up/down button Z-axis emulation. 45 * - Maybe add some more gestures (can we use Palm support somehow?) 46 */ 47 48 #include "opt_pms.h" 49 50 #include <sys/cdefs.h> 51 52 #include <sys/param.h> 53 #include <sys/systm.h> 54 #include <sys/device.h> 55 #include <sys/ioctl.h> 56 #include <sys/sysctl.h> 57 #include <sys/kernel.h> 58 59 #include <sys/bus.h> 60 61 #include <dev/pckbport/pckbportvar.h> 62 63 #include <dev/pckbport/synapticsreg.h> 64 #include <dev/pckbport/synapticsvar.h> 65 66 #include <dev/pckbport/pmsreg.h> 67 #include <dev/pckbport/pmsvar.h> 68 69 #include <dev/wscons/wsconsio.h> 70 #include <dev/wscons/wsmousevar.h> 71 72 /* 73 * Absolute-mode packets are decoded and passed around using 74 * the following structure. 75 */ 76 struct synaptics_packet { 77 signed short sp_x; /* Unscaled absolute X/Y coordinates */ 78 signed short sp_y; 79 u_char sp_z; /* Z (pressure) */ 80 u_char sp_w; /* W (contact patch width) */ 81 char sp_left; /* Left mouse button status */ 82 char sp_right; /* Right mouse button status */ 83 char sp_middle; /* Middle button status (possibly emulated) */ 84 char sp_up; /* Up button status */ 85 char sp_down; /* Down button status */ 86 }; 87 88 static int pms_synaptics_send_command(pckbport_tag_t, pckbport_slot_t, u_char); 89 static void pms_synaptics_input(void *, int); 90 static void pms_synaptics_process_packet(struct pms_softc *, 91 struct synaptics_packet *); 92 static void pms_sysctl_synaptics(struct sysctllog **); 93 static int pms_sysctl_synaptics_verify(SYSCTLFN_ARGS); 94 95 /* Controled by sysctl. */ 96 static int synaptics_up_down_emul = 2; 97 static int synaptics_up_down_motion_delta = 1; 98 static int synaptics_gesture_move = 200; 99 static int synaptics_gesture_length = 20; 100 static int synaptics_edge_left = SYNAPTICS_EDGE_LEFT; 101 static int synaptics_edge_right = SYNAPTICS_EDGE_RIGHT; 102 static int synaptics_edge_top = SYNAPTICS_EDGE_TOP; 103 static int synaptics_edge_bottom = SYNAPTICS_EDGE_BOTTOM; 104 static int synaptics_edge_motion_delta = 32; 105 static u_int synaptics_finger_high = SYNAPTICS_FINGER_LIGHT + 5; 106 static u_int synaptics_finger_low = SYNAPTICS_FINGER_LIGHT - 10; 107 static int synaptics_two_fingers_emul = 0; 108 static int synaptics_scale_x = 16; 109 static int synaptics_scale_y = 16; 110 static int synaptics_max_speed_x = 32; 111 static int synaptics_max_speed_y = 32; 112 static int synaptics_movement_threshold = 4; 113 114 /* Sysctl nodes. */ 115 static int synaptics_up_down_emul_nodenum; 116 static int synaptics_up_down_motion_delta_nodenum; 117 static int synaptics_gesture_move_nodenum; 118 static int synaptics_gesture_length_nodenum; 119 static int synaptics_edge_left_nodenum; 120 static int synaptics_edge_right_nodenum; 121 static int synaptics_edge_top_nodenum; 122 static int synaptics_edge_bottom_nodenum; 123 static int synaptics_edge_motion_delta_nodenum; 124 static int synaptics_finger_high_nodenum; 125 static int synaptics_finger_low_nodenum; 126 static int synaptics_two_fingers_emul_nodenum; 127 static int synaptics_scale_x_nodenum; 128 static int synaptics_scale_y_nodenum; 129 static int synaptics_max_speed_x_nodenum; 130 static int synaptics_max_speed_y_nodenum; 131 static int synaptics_movement_threshold_nodenum; 132 133 int 134 pms_synaptics_probe_init(void *vsc) 135 { 136 struct pms_softc *psc = vsc; 137 struct synaptics_softc *sc = &psc->u.synaptics; 138 u_char cmd[2], resp[3]; 139 int res, ver_minor, ver_major; 140 struct sysctllog *clog = NULL; 141 142 res = pms_synaptics_send_command(psc->sc_kbctag, psc->sc_kbcslot, 143 SYNAPTICS_IDENTIFY_TOUCHPAD); 144 cmd[0] = PMS_SEND_DEV_STATUS; 145 res |= pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, 1, 3, 146 resp, 0); 147 if (res) { 148 #ifdef SYNAPTICSDEBUG 149 aprint_error("%s: synaptics_probe: Identify Touchpad error.\n", 150 psc->sc_dev.dv_xname); 151 #endif 152 /* 153 * Reset device in case the probe confused it. 154 */ 155 doreset: 156 cmd[0] = PMS_RESET; 157 (void) pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, 158 1, 2, resp, 1); 159 return (res); 160 } 161 162 if (resp[1] != SYNAPTICS_MAGIC_BYTE) { 163 #ifdef SYNAPTICSDEBUG 164 printf("%s: synaptics_probe: Not synaptics.\n", 165 psc->sc_dev.dv_xname); 166 #endif 167 res = 1; 168 goto doreset; 169 } 170 171 sc->flags = 0; 172 173 /* Check for minimum version and print a nice message. */ 174 ver_major = resp[2] & 0x0f; 175 ver_minor = resp[0]; 176 aprint_normal("%s: Synaptics touchpad version %d.%d\n", 177 psc->sc_dev.dv_xname, ver_major, ver_minor); 178 if (ver_major * 10 + ver_minor < SYNAPTICS_MIN_VERSION) { 179 /* No capability query support. */ 180 sc->caps = 0; 181 goto done; 182 } 183 184 /* Query the hardware capabilities. */ 185 res = pms_synaptics_send_command(psc->sc_kbctag, psc->sc_kbcslot, 186 SYNAPTICS_READ_CAPABILITIES); 187 cmd[0] = PMS_SEND_DEV_STATUS; 188 res |= pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, 1, 3, 189 resp, 0); 190 if (res) { 191 /* Hmm, failed to get capabilites. */ 192 aprint_error("%s: synaptics_probe: Failed to query " 193 "capabilities.\n", psc->sc_dev.dv_xname); 194 goto doreset; 195 } 196 197 sc->caps = (resp[0] << 8) | resp[2]; 198 199 if (sc->caps & SYNAPTICS_CAP_MBUTTON) 200 sc->flags |= SYN_FLAG_HAS_MIDDLE_BUTTON; 201 202 if (sc->caps & SYNAPTICS_CAP_4BUTTON) 203 sc->flags |= SYN_FLAG_HAS_BUTTONS_4_5; 204 205 if (sc->caps & SYNAPTICS_CAP_EXTENDED) { 206 #ifdef SYNAPTICSDEBUG 207 aprint_normal("%s: synaptics_probe: Capabilities 0x%04x.\n", 208 psc->sc_dev.dv_xname, sc->caps); 209 #endif 210 if (sc->caps & SYNAPTICS_CAP_PASSTHROUGH) 211 sc->flags |= SYN_FLAG_HAS_PASSTHROUGH; 212 213 if (sc->caps & SYNAPTICS_CAP_PALMDETECT) 214 sc->flags |= SYN_FLAG_HAS_PALM_DETECT; 215 216 if (sc->caps & SYNAPTICS_CAP_MULTIDETECT) 217 sc->flags |= SYN_FLAG_HAS_MULTI_FINGER; 218 219 /* Ask about extra buttons to detect up/down. */ 220 if (sc->caps & SYNAPTICS_CAP_EXTNUM) { 221 res = pms_synaptics_send_command(psc->sc_kbctag, 222 psc->sc_kbcslot, SYNAPTICS_EXTENDED_QUERY); 223 cmd[0] = PMS_SEND_DEV_STATUS; 224 res |= pckbport_poll_cmd(psc->sc_kbctag, 225 psc->sc_kbcslot, cmd, 1, 3, resp, 0); 226 #ifdef SYNAPTICSDEBUG 227 if (res == 0) 228 aprint_normal("%s: synaptics_probe: Extended " 229 "Capabilities 0x%02x.\n", 230 psc->sc_dev.dv_xname, resp[1]); 231 #endif 232 if (!res && (resp[1] >> 4) >= 2) { 233 /* Yes. */ 234 sc->flags |= SYN_FLAG_HAS_UP_DOWN_BUTTONS; 235 } 236 } 237 } 238 239 if (sc->flags) { 240 const char comma[] = ", "; 241 const char *sep = ""; 242 aprint_normal("%s: ", psc->sc_dev.dv_xname); 243 if (sc->flags & SYN_FLAG_HAS_MIDDLE_BUTTON) { 244 aprint_normal("%sMiddle button", sep); 245 sep = comma; 246 } 247 if (sc->flags & SYN_FLAG_HAS_BUTTONS_4_5) { 248 aprint_normal("%sButtons 4/5", sep); 249 sep = comma; 250 } 251 if (sc->flags & SYN_FLAG_HAS_UP_DOWN_BUTTONS) { 252 aprint_normal("%sUp/down buttons", sep); 253 sep = comma; 254 } 255 if (sc->flags & SYN_FLAG_HAS_PALM_DETECT) { 256 aprint_normal("%sPalm detect", sep); 257 sep = comma; 258 } 259 if (sc->flags & SYN_FLAG_HAS_MULTI_FINGER) 260 aprint_normal("%sMulti-finger", sep); 261 262 aprint_normal("\n"); 263 } 264 265 done: 266 pms_sysctl_synaptics(&clog); 267 pckbport_set_inputhandler(psc->sc_kbctag, psc->sc_kbcslot, 268 pms_synaptics_input, psc, psc->sc_dev.dv_xname); 269 270 return (0); 271 } 272 273 void 274 pms_synaptics_enable(void *vsc) 275 { 276 struct pms_softc *psc = vsc; 277 struct synaptics_softc *sc = &psc->u.synaptics; 278 u_char cmd[2]; 279 int res; 280 281 /* 282 * Enable Absolute mode with W (width) reporting, and set 283 * the packet rate to maximum (80 packets per second). 284 */ 285 res = pms_synaptics_send_command(psc->sc_kbctag, psc->sc_kbcslot, 286 SYNAPTICS_MODE_ABSOLUTE | SYNAPTICS_MODE_W | SYNAPTICS_MODE_RATE); 287 cmd[0] = PMS_SET_SAMPLE; 288 cmd[1] = 0x14; /* doit */ 289 res |= pckbport_enqueue_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, 2, 0, 290 1, NULL); 291 sc->up_down = 0; 292 sc->prev_fingers = 0; 293 sc->gesture_start_x = sc->gesture_start_y = 0; 294 sc->gesture_start_packet = 0; 295 sc->gesture_tap_packet = 0; 296 sc->gesture_type = 0; 297 sc->gesture_buttons = 0; 298 sc->rem_x = sc->rem_y = 0; 299 sc->movement_history = 0; 300 if (res) { 301 printf("%s: synaptics_enable: Error enabling device.\n", 302 psc->sc_dev.dv_xname); 303 } 304 } 305 306 void 307 pms_synaptics_resume(void *vsc) 308 { 309 struct pms_softc *psc = vsc; 310 unsigned char cmd[1],resp[2] = { 0,0 }; 311 int res; 312 313 cmd[0] = PMS_RESET; 314 res = pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, 1, 2, 315 resp, 1); 316 printf("%s: pms_synaptics_resume: reset on resume %d 0x%02x 0x%02x\n", 317 psc->sc_dev.dv_xname, res, resp[0], resp[1]); 318 } 319 320 static void 321 pms_sysctl_synaptics(struct sysctllog **clog) 322 { 323 int rc, root_num; 324 const struct sysctlnode *node; 325 326 if ((rc = sysctl_createv(clog, 0, NULL, NULL, 327 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 328 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) 329 goto err; 330 331 if ((rc = sysctl_createv(clog, 0, NULL, &node, 332 CTLFLAG_PERMANENT, CTLTYPE_NODE, "synaptics", 333 SYSCTL_DESCR("Synaptics touchpad controls"), 334 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 335 goto err; 336 337 root_num = node->sysctl_num; 338 339 if ((rc = sysctl_createv(clog, 0, NULL, &node, 340 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 341 CTLTYPE_INT, "up_down_emulation", 342 SYSCTL_DESCR("Middle button/Z-axis emulation with up/down buttons"), 343 pms_sysctl_synaptics_verify, 0, 344 &synaptics_up_down_emul, 345 0, CTL_HW, root_num, CTL_CREATE, 346 CTL_EOL)) != 0) 347 goto err; 348 349 synaptics_up_down_emul_nodenum = node->sysctl_num; 350 351 if ((rc = sysctl_createv(clog, 0, NULL, &node, 352 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 353 CTLTYPE_INT, "up_down_motion_delta", 354 SYSCTL_DESCR("Up/down button Z-axis emulation rate"), 355 pms_sysctl_synaptics_verify, 0, 356 &synaptics_up_down_motion_delta, 357 0, CTL_HW, root_num, CTL_CREATE, 358 CTL_EOL)) != 0) 359 goto err; 360 361 synaptics_up_down_motion_delta_nodenum = node->sysctl_num; 362 363 if ((rc = sysctl_createv(clog, 0, NULL, &node, 364 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 365 CTLTYPE_INT, "gesture_move", 366 SYSCTL_DESCR("Movement greater than this between taps cancels gesture"), 367 pms_sysctl_synaptics_verify, 0, 368 &synaptics_gesture_move, 369 0, CTL_HW, root_num, CTL_CREATE, 370 CTL_EOL)) != 0) 371 goto err; 372 373 synaptics_gesture_move_nodenum = node->sysctl_num; 374 375 if ((rc = sysctl_createv(clog, 0, NULL, &node, 376 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 377 CTLTYPE_INT, "gesture_length", 378 SYSCTL_DESCR("Time period in which tap is recognised as a gesture"), 379 pms_sysctl_synaptics_verify, 0, 380 &synaptics_gesture_length, 381 0, CTL_HW, root_num, CTL_CREATE, 382 CTL_EOL)) != 0) 383 goto err; 384 385 synaptics_gesture_length_nodenum = node->sysctl_num; 386 387 if ((rc = sysctl_createv(clog, 0, NULL, &node, 388 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 389 CTLTYPE_INT, "edge_left", 390 SYSCTL_DESCR("Define left edge of touchpad"), 391 pms_sysctl_synaptics_verify, 0, 392 &synaptics_edge_left, 393 0, CTL_HW, root_num, CTL_CREATE, 394 CTL_EOL)) != 0) 395 goto err; 396 397 synaptics_edge_left_nodenum = node->sysctl_num; 398 399 if ((rc = sysctl_createv(clog, 0, NULL, &node, 400 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 401 CTLTYPE_INT, "edge_right", 402 SYSCTL_DESCR("Define right edge of touchpad"), 403 pms_sysctl_synaptics_verify, 0, 404 &synaptics_edge_right, 405 0, CTL_HW, root_num, CTL_CREATE, 406 CTL_EOL)) != 0) 407 goto err; 408 409 synaptics_edge_right_nodenum = node->sysctl_num; 410 411 if ((rc = sysctl_createv(clog, 0, NULL, &node, 412 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 413 CTLTYPE_INT, "edge_top", 414 SYSCTL_DESCR("Define top edge of touchpad"), 415 pms_sysctl_synaptics_verify, 0, 416 &synaptics_edge_top, 417 0, CTL_HW, root_num, CTL_CREATE, 418 CTL_EOL)) != 0) 419 goto err; 420 421 synaptics_edge_top_nodenum = node->sysctl_num; 422 423 if ((rc = sysctl_createv(clog, 0, NULL, &node, 424 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 425 CTLTYPE_INT, "edge_bottom", 426 SYSCTL_DESCR("Define bottom edge of touchpad"), 427 pms_sysctl_synaptics_verify, 0, 428 &synaptics_edge_bottom, 429 0, CTL_HW, root_num, CTL_CREATE, 430 CTL_EOL)) != 0) 431 goto err; 432 433 synaptics_edge_bottom_nodenum = node->sysctl_num; 434 435 if ((rc = sysctl_createv(clog, 0, NULL, &node, 436 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 437 CTLTYPE_INT, "edge_motion_delta", 438 SYSCTL_DESCR("Define edge motion rate"), 439 pms_sysctl_synaptics_verify, 0, 440 &synaptics_edge_motion_delta, 441 0, CTL_HW, root_num, CTL_CREATE, 442 CTL_EOL)) != 0) 443 goto err; 444 445 synaptics_edge_motion_delta_nodenum = node->sysctl_num; 446 447 if ((rc = sysctl_createv(clog, 0, NULL, &node, 448 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 449 CTLTYPE_INT, "finger_high", 450 SYSCTL_DESCR("Define finger applied pressure threshold"), 451 pms_sysctl_synaptics_verify, 0, 452 &synaptics_finger_high, 453 0, CTL_HW, root_num, CTL_CREATE, 454 CTL_EOL)) != 0) 455 goto err; 456 457 synaptics_finger_high_nodenum = node->sysctl_num; 458 459 if ((rc = sysctl_createv(clog, 0, NULL, &node, 460 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 461 CTLTYPE_INT, "finger_low", 462 SYSCTL_DESCR("Define finger removed pressure threshold"), 463 pms_sysctl_synaptics_verify, 0, 464 &synaptics_finger_low, 465 0, CTL_HW, root_num, CTL_CREATE, 466 CTL_EOL)) != 0) 467 goto err; 468 469 synaptics_finger_low_nodenum = node->sysctl_num; 470 471 if ((rc = sysctl_createv(clog, 0, NULL, &node, 472 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 473 CTLTYPE_INT, "two_fingers_emulation", 474 SYSCTL_DESCR("Map two fingers to middle button"), 475 pms_sysctl_synaptics_verify, 0, 476 &synaptics_two_fingers_emul, 477 0, CTL_HW, root_num, CTL_CREATE, 478 CTL_EOL)) != 0) 479 goto err; 480 481 synaptics_two_fingers_emul_nodenum = node->sysctl_num; 482 483 if ((rc = sysctl_createv(clog, 0, NULL, &node, 484 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 485 CTLTYPE_INT, "scale_x", 486 SYSCTL_DESCR("Horizontal movement scale factor"), 487 pms_sysctl_synaptics_verify, 0, 488 &synaptics_scale_x, 489 0, CTL_HW, root_num, CTL_CREATE, 490 CTL_EOL)) != 0) 491 goto err; 492 493 synaptics_scale_x_nodenum = node->sysctl_num; 494 495 if ((rc = sysctl_createv(clog, 0, NULL, &node, 496 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 497 CTLTYPE_INT, "scale_y", 498 SYSCTL_DESCR("Vertical movement scale factor"), 499 pms_sysctl_synaptics_verify, 0, 500 &synaptics_scale_y, 501 0, CTL_HW, root_num, CTL_CREATE, 502 CTL_EOL)) != 0) 503 goto err; 504 505 synaptics_scale_y_nodenum = node->sysctl_num; 506 507 if ((rc = sysctl_createv(clog, 0, NULL, &node, 508 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 509 CTLTYPE_INT, "max_speed_x", 510 SYSCTL_DESCR("Horizontal movement maximum speed"), 511 pms_sysctl_synaptics_verify, 0, 512 &synaptics_max_speed_x, 513 0, CTL_HW, root_num, CTL_CREATE, 514 CTL_EOL)) != 0) 515 goto err; 516 517 synaptics_max_speed_x_nodenum = node->sysctl_num; 518 519 if ((rc = sysctl_createv(clog, 0, NULL, &node, 520 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 521 CTLTYPE_INT, "max_speed_y", 522 SYSCTL_DESCR("Vertical movement maximum speed"), 523 pms_sysctl_synaptics_verify, 0, 524 &synaptics_max_speed_y, 525 0, CTL_HW, root_num, CTL_CREATE, 526 CTL_EOL)) != 0) 527 goto err; 528 529 synaptics_max_speed_y_nodenum = node->sysctl_num; 530 531 if ((rc = sysctl_createv(clog, 0, NULL, &node, 532 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 533 CTLTYPE_INT, "movement_threshold", 534 SYSCTL_DESCR("Minimum reported movement threshold"), 535 pms_sysctl_synaptics_verify, 0, 536 &synaptics_movement_threshold, 537 0, CTL_HW, root_num, CTL_CREATE, 538 CTL_EOL)) != 0) 539 goto err; 540 541 synaptics_movement_threshold_nodenum = node->sysctl_num; 542 return; 543 544 err: 545 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 546 } 547 548 static int 549 pms_sysctl_synaptics_verify(SYSCTLFN_ARGS) 550 { 551 int error, t; 552 struct sysctlnode node; 553 554 node = *rnode; 555 t = *(int *)rnode->sysctl_data; 556 node.sysctl_data = &t; 557 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 558 if (error || newp == NULL) 559 return error; 560 561 /* Sanity check the params. */ 562 if (node.sysctl_num == synaptics_up_down_emul_nodenum || 563 node.sysctl_num == synaptics_two_fingers_emul_nodenum) { 564 if (t < 0 || t > 2) 565 return (EINVAL); 566 } else 567 if (node.sysctl_num == synaptics_gesture_length_nodenum || 568 node.sysctl_num == synaptics_edge_motion_delta_nodenum || 569 node.sysctl_num == synaptics_up_down_motion_delta_nodenum) { 570 if (t < 0) 571 return (EINVAL); 572 } else 573 if (node.sysctl_num == synaptics_edge_left_nodenum || 574 node.sysctl_num == synaptics_edge_bottom_nodenum) { 575 if (t < 0 || t > (SYNAPTICS_EDGE_MAX / 2)) 576 return (EINVAL); 577 } else 578 if (node.sysctl_num == synaptics_edge_right_nodenum || 579 node.sysctl_num == synaptics_edge_top_nodenum) { 580 if (t < (SYNAPTICS_EDGE_MAX / 2)) 581 return (EINVAL); 582 } else 583 if (node.sysctl_num == synaptics_scale_x_nodenum || 584 node.sysctl_num == synaptics_scale_y_nodenum) { 585 if (t < 1 || t > (SYNAPTICS_EDGE_MAX / 4)) 586 return (EINVAL); 587 } else 588 if (node.sysctl_num == synaptics_finger_high_nodenum) { 589 if (t < 0 || t > SYNAPTICS_FINGER_PALM || 590 t < synaptics_finger_low) 591 return (EINVAL); 592 } else 593 if (node.sysctl_num == synaptics_finger_low_nodenum) { 594 if (t < 0 || t > SYNAPTICS_FINGER_PALM || 595 t > synaptics_finger_high) 596 return (EINVAL); 597 } else 598 if (node.sysctl_num == synaptics_gesture_move_nodenum || 599 node.sysctl_num == synaptics_movement_threshold_nodenum) { 600 if (t < 0 || t > (SYNAPTICS_EDGE_MAX / 4)) 601 return (EINVAL); 602 } else 603 return (EINVAL); 604 605 *(int *)rnode->sysctl_data = t; 606 607 return (0); 608 } 609 610 static int 611 pms_synaptics_send_command(pckbport_tag_t tag, pckbport_slot_t slot, 612 u_char syn_cmd) 613 { 614 u_char cmd[2]; 615 int res; 616 617 /* 618 * Need to send 4 Set Resolution commands, with the argument 619 * encoded in the bottom most 2 bits. 620 */ 621 cmd[0] = PMS_SET_RES; 622 cmd[1] = syn_cmd >> 6; 623 res = pckbport_poll_cmd(tag, slot, cmd, 2, 0, NULL, 0); 624 625 cmd[0] = PMS_SET_RES; 626 cmd[1] = (syn_cmd & 0x30) >> 4; 627 res |= pckbport_poll_cmd(tag, slot, cmd, 2, 0, NULL, 0); 628 629 cmd[0] = PMS_SET_RES; 630 cmd[1] = (syn_cmd & 0x0c) >> 2; 631 res |= pckbport_poll_cmd(tag, slot, cmd, 2, 0, NULL, 0); 632 633 cmd[0] = PMS_SET_RES; 634 cmd[1] = (syn_cmd & 0x03); 635 res |= pckbport_poll_cmd(tag, slot, cmd, 2, 0, NULL, 0); 636 637 return (res); 638 } 639 640 /* Masks for the first byte of a packet */ 641 #define PMS_LBUTMASK 0x01 642 #define PMS_RBUTMASK 0x02 643 #define PMS_MBUTMASK 0x04 644 645 static void 646 pms_synaptics_parse(struct pms_softc *psc) 647 { 648 struct synaptics_softc *sc = &psc->u.synaptics; 649 struct synaptics_packet sp; 650 651 /* Absolute X/Y coordinates of finger */ 652 sp.sp_x = psc->packet[4] + ((psc->packet[1] & 0x0f) << 8) + 653 ((psc->packet[3] & 0x10) << 8); 654 sp.sp_y = psc->packet[5] + ((psc->packet[1] & 0xf0) << 4) + 655 ((psc->packet[3] & 0x20) << 7); 656 657 /* Pressure */ 658 sp.sp_z = psc->packet[2]; 659 660 /* Width of finger */ 661 sp.sp_w = ((psc->packet[0] & 0x30) >> 2) + 662 ((psc->packet[0] & 0x04) >> 1) + 663 ((psc->packet[3] & 0x04) >> 2); 664 665 /* Left/Right button handling. */ 666 sp.sp_left = psc->packet[0] & PMS_LBUTMASK; 667 sp.sp_right = psc->packet[0] & PMS_RBUTMASK; 668 669 /* Up/Down buttons. */ 670 if (sc->flags & SYN_FLAG_HAS_BUTTONS_4_5) { 671 /* Old up/down buttons. */ 672 sp.sp_up = sp.sp_left ^ 673 (psc->packet[3] & PMS_LBUTMASK); 674 sp.sp_down = sp.sp_right ^ 675 (psc->packet[3] & PMS_RBUTMASK); 676 } else 677 if (sc->flags & SYN_FLAG_HAS_UP_DOWN_BUTTONS && 678 ((psc->packet[0] & PMS_RBUTMASK) ^ 679 (psc->packet[3] & PMS_RBUTMASK))) { 680 /* New up/down button. */ 681 sp.sp_up = psc->packet[4] & SYN_1BUTMASK; 682 sp.sp_down = psc->packet[5] & SYN_2BUTMASK; 683 } else { 684 sp.sp_up = 0; 685 sp.sp_down = 0; 686 } 687 688 /* Middle button. */ 689 if (sc->flags & SYN_FLAG_HAS_MIDDLE_BUTTON) { 690 /* Old style Middle Button. */ 691 sp.sp_middle = (psc->packet[0] & PMS_LBUTMASK) ^ 692 (psc->packet[3] & PMS_LBUTMASK); 693 } else 694 if (synaptics_up_down_emul == 1) { 695 /* Do middle button emulation using up/down buttons */ 696 sp.sp_middle = sp.sp_up | sp.sp_down; 697 sp.sp_up = sp.sp_down = 0; 698 } else 699 sp.sp_middle = 0; 700 701 pms_synaptics_process_packet(psc, &sp); 702 } 703 704 static void 705 pms_synaptics_passthrough(struct pms_softc *psc) 706 { 707 int dx, dy, dz; 708 int buttons, changed; 709 int s; 710 711 buttons = ((psc->packet[1] & PMS_LBUTMASK) ? 0x20 : 0) | 712 ((psc->packet[1] & PMS_MBUTMASK) ? 0x40 : 0) | 713 ((psc->packet[1] & PMS_RBUTMASK) ? 0x80 : 0); 714 715 dx = psc->packet[4]; 716 if (dx >= 128) 717 dx -= 256; 718 if (dx == -128) 719 dx = -127; 720 721 dy = psc->packet[5]; 722 if (dy >= 128) 723 dy -= 256; 724 if (dy == -128) 725 dy = -127; 726 727 dz = 0; 728 729 changed = buttons ^ (psc->buttons & 0xe0); 730 psc->buttons ^= changed; 731 732 if (dx || dy || dz || changed) { 733 buttons = (psc->buttons & 0x1f) | ((psc->buttons >> 5) & 0x7); 734 s = spltty(); 735 wsmouse_input(psc->sc_wsmousedev, 736 buttons, dx, dy, dz, 0, 737 WSMOUSE_INPUT_DELTA); 738 splx(s); 739 } 740 } 741 742 static void 743 pms_synaptics_input(void *vsc, int data) 744 { 745 struct pms_softc *psc = vsc; 746 struct timeval diff; 747 748 if (!psc->sc_enabled) { 749 /* Interrupts are not expected. Discard the byte. */ 750 return; 751 } 752 753 getmicrouptime(&psc->current); 754 755 if (psc->inputstate > 0) { 756 timersub(&psc->current, &psc->last, &diff); 757 if (diff.tv_sec > 0 || diff.tv_usec >= 40000) { 758 printf("%s: pms_input: unusual delay (%ld.%06ld s), " 759 "scheduling reset\n", psc->sc_dev.dv_xname, 760 (long)diff.tv_sec, (long)diff.tv_usec); 761 psc->inputstate = 0; 762 psc->sc_enabled = 0; 763 wakeup(&psc->sc_enabled); 764 return; 765 } 766 } 767 psc->last = psc->current; 768 769 switch (psc->inputstate) { 770 case 0: 771 if ((data & 0xc8) != 0x80) { 772 #ifdef SYNAPTICSDEBUG 773 printf("%s: pms_input: 0x%02x out of sync\n", 774 psc->sc_dev.dv_xname, data); 775 #endif 776 return; /* not in sync yet, discard input */ 777 } 778 /*FALLTHROUGH*/ 779 780 case 3: 781 if ((data & 8) == 8) { 782 #ifdef SYNAPTICSDEBUG 783 printf("%s: pms_input: dropped in relative mode, " 784 "reset\n", psc->sc_dev.dv_xname); 785 #endif 786 psc->inputstate = 0; 787 psc->sc_enabled = 0; 788 wakeup(&psc->sc_enabled); 789 return; 790 } 791 } 792 793 psc->packet[psc->inputstate++] = data & 0xff; 794 if (psc->inputstate == 6) { 795 /* 796 * We have a complete packet. 797 * Extract the pertinent details. 798 */ 799 psc->inputstate = 0; 800 801 if ((psc->packet[0] & 0xfc) == 0x84 && 802 (psc->packet[3] & 0xcc) == 0xc4) { 803 /* PS/2 passthrough */ 804 pms_synaptics_passthrough(psc); 805 } else { 806 pms_synaptics_parse(psc); 807 } 808 } 809 } 810 811 static inline int 812 synaptics_finger_detect(struct synaptics_softc *sc, struct synaptics_packet *sp, 813 int *palmp) 814 { 815 int fingers; 816 817 /* Assume no palm */ 818 *palmp = 0; 819 820 /* 821 * Apply some hysteresis when checking for a finger. 822 * When the finger is first applied, we ignore it until the 823 * pressure exceeds the 'high' threshold. The finger is considered 824 * removed only when pressure falls beneath the 'low' threshold. 825 */ 826 if ((sc->prev_fingers == 0 && sp->sp_z > synaptics_finger_high) || 827 (sc->prev_fingers != 0 && sp->sp_z > synaptics_finger_low)) 828 fingers = 1; 829 else 830 fingers = 0; 831 832 /* 833 * If the pad can't do palm detection, skip the rest. 834 */ 835 if (fingers == 0 || (sc->flags & SYN_FLAG_HAS_PALM_DETECT) == 0) 836 return (fingers); 837 838 /* 839 * Palm detection 840 */ 841 if (sp->sp_z > SYNAPTICS_FINGER_FLAT && 842 sp->sp_w >= SYNAPTICS_WIDTH_PALM_MIN) 843 *palmp = 1; 844 845 if (sc->prev_fingers == 0 && 846 (sp->sp_z > SYNAPTICS_FINGER_FLAT || 847 sp->sp_w >= SYNAPTICS_WIDTH_PALM_MIN)) { 848 /* 849 * Contact area or pressure is too great to be a finger. 850 * Just ignore it for now. 851 */ 852 return (0); 853 } 854 855 /* 856 * Detect 2 and 3 fingers if supported, but only if multiple 857 * fingers appear within the tap gesture time period. 858 */ 859 if (sc->flags & SYN_FLAG_HAS_MULTI_FINGER && 860 SYN_TIME(sc, sc->gesture_start_packet) < synaptics_gesture_length) { 861 switch (sp->sp_w) { 862 case SYNAPTICS_WIDTH_TWO_FINGERS: 863 fingers = 2; 864 break; 865 866 case SYNAPTICS_WIDTH_THREE_OR_MORE: 867 fingers = 3; 868 break; 869 870 case SYNAPTICS_WIDTH_PEN: 871 fingers = 1; 872 break; 873 874 default: 875 /* 876 * The width value can report spurious single-finger 877 * events after a multi-finger event. 878 */ 879 if (sc->prev_fingers > 1) 880 fingers = sc->prev_fingers; 881 else 882 fingers = 1; 883 break; 884 } 885 } 886 887 return (fingers); 888 } 889 890 static inline void 891 synaptics_gesture_detect(struct synaptics_softc *sc, 892 struct synaptics_packet *sp, int fingers) 893 { 894 int gesture_len, gesture_move_x, gesture_move_y, gesture_buttons; 895 int set_buttons; 896 897 gesture_len = SYN_TIME(sc, sc->gesture_start_packet); 898 gesture_buttons = sc->gesture_buttons; 899 900 if (fingers && sc->prev_fingers == 0) { 901 /* 902 * Finger was just applied. 903 * If the previous gesture was a single-click, set things 904 * up to deal with a possible drag or double-click gesture. 905 * Basically, if the finger is removed again within 906 * 'synaptics_gesture_length' packets, this is treated 907 * as a double-click. Otherwise we will emulate holding 908 * the left button down whilst dragging the mouse. 909 */ 910 if (SYN_IS_SINGLE_TAP(sc->gesture_type)) 911 sc->gesture_type |= SYN_GESTURE_DRAG; 912 913 sc->gesture_start_x = sp->sp_x; 914 sc->gesture_start_y = sp->sp_y; 915 sc->gesture_start_packet = sc->total_packets; 916 } else 917 if (fingers == 0 && sc->prev_fingers != 0) { 918 /* 919 * Finger was just removed. 920 * Check if the contact time and finger movement were 921 * small enough to qualify as a gesture. 922 * Ignore finger movement if multiple fingers were 923 * detected (the pad may report coordinates for any 924 * of the fingers). 925 */ 926 gesture_move_x = abs(sc->gesture_start_x - sp->sp_x); 927 gesture_move_y = abs(sc->gesture_start_y - sp->sp_y); 928 929 if (gesture_len < synaptics_gesture_length && 930 (sc->prev_fingers > 1 || 931 (gesture_move_x < synaptics_gesture_move && 932 gesture_move_y < synaptics_gesture_move))) { 933 /* 934 * Looking good so far. 935 */ 936 if (SYN_IS_DRAG(sc->gesture_type)) { 937 /* 938 * Promote this gesture to double-click. 939 */ 940 sc->gesture_type |= SYN_GESTURE_DOUBLE; 941 sc->gesture_type &= ~SYN_GESTURE_SINGLE; 942 } else { 943 /* 944 * Single tap gesture. Set the tap length timer 945 * and flag a single-click. 946 */ 947 sc->gesture_tap_packet = sc->total_packets; 948 sc->gesture_type |= SYN_GESTURE_SINGLE; 949 950 /* 951 * The gesture can be modified depending on 952 * the number of fingers detected. 953 * 954 * 1: Normal left button emulation. 955 * 2: Either middle button or right button 956 * depending on the value of the two_fingers 957 * sysctl variable. 958 * 3: Right button. 959 */ 960 switch (sc->prev_fingers) { 961 case 2: 962 if (synaptics_two_fingers_emul == 1) 963 gesture_buttons |= PMS_RBUTMASK; 964 else 965 if (synaptics_two_fingers_emul == 2) 966 gesture_buttons |= PMS_MBUTMASK; 967 break; 968 case 3: 969 gesture_buttons |= PMS_RBUTMASK; 970 break; 971 default: 972 gesture_buttons |= PMS_LBUTMASK; 973 break; 974 } 975 } 976 } 977 978 /* 979 * Always clear drag state when the finger is removed. 980 */ 981 sc->gesture_type &= ~SYN_GESTURE_DRAG; 982 } 983 984 if (sc->gesture_type == 0) { 985 /* 986 * There is no gesture in progress. 987 * Clear emulated button state. 988 */ 989 sc->gesture_buttons = 0; 990 return; 991 } 992 993 /* 994 * A gesture is in progress. 995 */ 996 set_buttons = 0; 997 998 if (SYN_IS_SINGLE_TAP(sc->gesture_type)) { 999 /* 1000 * Single-click. 1001 * Activate the relevant button(s) until the 1002 * gesture tap timer has expired. 1003 */ 1004 if (SYN_TIME(sc, sc->gesture_tap_packet) < 1005 synaptics_gesture_length) 1006 set_buttons = 1; 1007 else 1008 sc->gesture_type &= ~SYN_GESTURE_SINGLE; 1009 } else 1010 if (SYN_IS_DOUBLE_TAP(sc->gesture_type) && sc->prev_fingers == 0) { 1011 /* 1012 * Double-click. 1013 * Activate the relevant button(s) once. 1014 */ 1015 set_buttons = 1; 1016 sc->gesture_type &= ~SYN_GESTURE_DOUBLE; 1017 } 1018 1019 if (set_buttons || SYN_IS_DRAG(sc->gesture_type)) { 1020 /* 1021 * Single-click and drag. 1022 * Maintain button state until the finger is removed. 1023 */ 1024 sp->sp_left |= gesture_buttons & PMS_LBUTMASK; 1025 sp->sp_right |= gesture_buttons & PMS_RBUTMASK; 1026 sp->sp_middle |= gesture_buttons & PMS_MBUTMASK; 1027 } 1028 1029 sc->gesture_buttons = gesture_buttons; 1030 } 1031 1032 static inline int 1033 synaptics_filter_policy(struct synaptics_softc *sc, int *history, int value) 1034 { 1035 int a, b, rv, count; 1036 1037 count = sc->total_packets; 1038 1039 /* 1040 * Once we've accumulated at least SYN_HIST_SIZE values, combine 1041 * each new value with the previous two and return the average. 1042 * 1043 * This is necessary when the touchpad is operating in 80 packets 1044 * per second mode, as it performs little internal filtering on 1045 * reported values. 1046 * 1047 * Using a rolling average helps to filter out jitter caused by 1048 * tiny finger movements. 1049 */ 1050 if (sc->movement_history >= SYN_HIST_SIZE) { 1051 a = (history[(count + 0) % SYN_HIST_SIZE] + 1052 history[(count + 1) % SYN_HIST_SIZE]) / 2; 1053 1054 b = (value + history[(count + 0) % SYN_HIST_SIZE]) / 2; 1055 1056 rv = b - a; 1057 1058 /* 1059 * Don't report the movement if it's below a certain 1060 * threshold. 1061 */ 1062 if (abs(rv) < synaptics_movement_threshold) 1063 rv = 0; 1064 } else 1065 rv = 0; 1066 1067 /* 1068 * Add the new value to the history buffer. 1069 */ 1070 history[(count + 1) % SYN_HIST_SIZE] = value; 1071 1072 return (rv); 1073 } 1074 1075 /* Edge detection */ 1076 #define SYN_EDGE_TOP 1 1077 #define SYN_EDGE_BOTTOM 2 1078 #define SYN_EDGE_LEFT 4 1079 #define SYN_EDGE_RIGHT 8 1080 1081 static inline int 1082 synaptics_check_edge(int x, int y) 1083 { 1084 int rv = 0; 1085 1086 if (x < synaptics_edge_left) 1087 rv |= SYN_EDGE_LEFT; 1088 else 1089 if (x > synaptics_edge_right) 1090 rv |= SYN_EDGE_RIGHT; 1091 1092 if (y < synaptics_edge_bottom) 1093 rv |= SYN_EDGE_BOTTOM; 1094 else 1095 if (y > synaptics_edge_top) 1096 rv |= SYN_EDGE_TOP; 1097 1098 return (rv); 1099 } 1100 1101 static inline int 1102 synaptics_edge_motion(struct synaptics_softc *sc, int delta, int dir) 1103 { 1104 1105 /* 1106 * When edge motion is enabled, synaptics_edge_motion_delta is 1107 * combined with the current delta, together with the direction 1108 * in which to simulate the motion. The result is added to 1109 * the delta derived from finger movement. This provides a smooth 1110 * transition from finger movement to edge motion. 1111 */ 1112 delta = synaptics_edge_motion_delta + (dir * delta); 1113 if (delta < 0) 1114 return (0); 1115 if (delta > synaptics_edge_motion_delta) 1116 return (synaptics_edge_motion_delta); 1117 return (delta); 1118 } 1119 1120 static inline int 1121 synaptics_scale(int delta, int scale, int *remp) 1122 { 1123 int rv; 1124 1125 /* 1126 * Scale the raw delta in Synaptics coordinates (0-6143) into 1127 * something more reasonable by dividing the raw delta by a 1128 * scale factor. Any remainder from the previous scale result 1129 * is added to the current delta before scaling. 1130 * This prevents loss of resolution for very small/slow 1131 * movements of the finger. 1132 */ 1133 delta += *remp; 1134 rv = delta / scale; 1135 *remp = delta % scale; 1136 1137 return (rv); 1138 } 1139 1140 static inline void 1141 synaptics_movement(struct synaptics_softc *sc, struct synaptics_packet *sp, 1142 int *dxp, int *dyp) 1143 { 1144 int dx, dy, edge; 1145 1146 /* 1147 * Compute the next values of dx and dy 1148 */ 1149 dx = synaptics_filter_policy(sc, sc->history_x, sp->sp_x); 1150 dy = synaptics_filter_policy(sc, sc->history_y, sp->sp_y); 1151 1152 /* 1153 * If we're dealing with a drag gesture, and the finger moves to 1154 * the edge of the touchpad, apply edge motion emulation if it 1155 * is enabled. 1156 */ 1157 if (synaptics_edge_motion_delta && SYN_IS_DRAG(sc->gesture_type)) { 1158 edge = synaptics_check_edge(sp->sp_x, sp->sp_y); 1159 1160 if (edge & SYN_EDGE_LEFT) 1161 dx -= synaptics_edge_motion(sc, dx, 1); 1162 if (edge & SYN_EDGE_RIGHT) 1163 dx += synaptics_edge_motion(sc, dx, -1); 1164 if (edge & SYN_EDGE_BOTTOM) 1165 dy -= synaptics_edge_motion(sc, dy, 1); 1166 if (edge & SYN_EDGE_TOP) 1167 dy += synaptics_edge_motion(sc, dy, -1); 1168 } 1169 1170 /* 1171 * Apply scaling to both deltas 1172 */ 1173 dx = synaptics_scale(dx, synaptics_scale_x, &sc->rem_x); 1174 dy = synaptics_scale(dy, synaptics_scale_y, &sc->rem_y); 1175 1176 /* 1177 * Clamp deltas to specified maximums. 1178 */ 1179 if (dx > synaptics_max_speed_x) 1180 dx = synaptics_max_speed_x; 1181 if (dy > synaptics_max_speed_y) 1182 dy = synaptics_max_speed_y; 1183 1184 *dxp = dx; 1185 *dyp = dy; 1186 1187 sc->movement_history++; 1188 } 1189 1190 static void 1191 pms_synaptics_process_packet(struct pms_softc *psc, struct synaptics_packet *sp) 1192 { 1193 struct synaptics_softc *sc = &psc->u.synaptics; 1194 int dx, dy, dz; 1195 int fingers, palm, buttons, changed; 1196 int s; 1197 1198 /* 1199 * Do Z-axis emulation using up/down buttons if required. 1200 * Note that the pad will send a one second burst of packets 1201 * when an up/down button is pressed and held. At the moment 1202 * we don't deal with auto-repeat, so convert the burst into 1203 * a one-shot. 1204 */ 1205 dz = 0; 1206 if (synaptics_up_down_emul == 2) { 1207 if (sc->up_down == 0) { 1208 if (sp->sp_up && sp->sp_down) { 1209 /* 1210 * Most up/down buttons will be actuated using 1211 * a rocker switch, so we should never see 1212 * them both simultaneously. But just in case, 1213 * treat this situation as a middle button 1214 * event. 1215 */ 1216 sp->sp_middle = 1; 1217 } else 1218 if (sp->sp_up) 1219 dz = -synaptics_up_down_motion_delta; 1220 else 1221 if (sp->sp_down) 1222 dz = synaptics_up_down_motion_delta; 1223 } 1224 1225 sc->up_down = sp->sp_up | sp->sp_down; 1226 sp->sp_up = sp->sp_down = 0; 1227 } 1228 1229 /* 1230 * Determine whether or not a finger is on the pad. 1231 * On some pads, this will return the number of fingers 1232 * detected. 1233 */ 1234 fingers = synaptics_finger_detect(sc, sp, &palm); 1235 1236 /* 1237 * Do gesture processing only if we didn't detect a palm. 1238 */ 1239 if (palm == 0) 1240 synaptics_gesture_detect(sc, sp, fingers); 1241 else 1242 sc->gesture_type = sc->gesture_buttons = 0; 1243 1244 /* 1245 * Determine what buttons to report 1246 */ 1247 buttons = (sp->sp_left ? 0x1 : 0) | 1248 (sp->sp_middle ? 0x2 : 0) | 1249 (sp->sp_right ? 0x4 : 0) | 1250 (sp->sp_up ? 0x8 : 0) | 1251 (sp->sp_down ? 0x10 : 0); 1252 changed = buttons ^ (psc->buttons & 0x1f); 1253 psc->buttons ^= changed; 1254 1255 sc->prev_fingers = fingers; 1256 sc->total_packets++; 1257 1258 /* 1259 * Do movement processing IFF we have a single finger and no palm. 1260 */ 1261 if (fingers == 1 && palm == 0) 1262 synaptics_movement(sc, sp, &dx, &dy); 1263 else { 1264 /* 1265 * No valid finger. Therefore no movement. 1266 */ 1267 sc->movement_history = 0; 1268 sc->rem_x = sc->rem_y = 0; 1269 dx = dy = 0; 1270 } 1271 1272 /* 1273 * Pass the final results up to wsmouse_input() if necessary. 1274 */ 1275 if (dx || dy || dz || changed) { 1276 buttons = (psc->buttons & 0x1f) | ((psc->buttons >> 5) & 0x7); 1277 s = spltty(); 1278 wsmouse_input(psc->sc_wsmousedev, 1279 buttons, 1280 dx, dy, dz, 0, 1281 WSMOUSE_INPUT_DELTA); 1282 splx(s); 1283 } 1284 } 1285
Indexes created Fri Sep 26 20:09:58 GMT 2025