synaptics.c revision 1.70.8.1
1 /* $NetBSD: synaptics.c,v 1.70.8.1 2021/05/31 22:15:18 cjep 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 __KERNEL_RCSID(0, "$NetBSD: synaptics.c,v 1.70.8.1 2021/05/31 22:15:18 cjep Exp $"); 52 53 #include <sys/param.h> 54 #include <sys/systm.h> 55 #include <sys/device.h> 56 #include <sys/ioctl.h> 57 #include <sys/sysctl.h> 58 #include <sys/kernel.h> 59 #include <sys/proc.h> 60 61 #include <sys/bus.h> 62 63 #include <dev/pckbport/pckbportvar.h> 64 65 #include <dev/pckbport/synapticsreg.h> 66 #include <dev/pckbport/synapticsvar.h> 67 68 #include <dev/pckbport/pmsreg.h> 69 #include <dev/pckbport/pmsvar.h> 70 71 #include <dev/wscons/wsconsio.h> 72 #include <dev/wscons/wsmousevar.h> 73 74 /* 75 * Absolute-mode packets are decoded and passed around using 76 * the following structure. 77 */ 78 struct synaptics_packet { 79 signed short sp_x; /* Unscaled absolute X/Y coordinates */ 80 signed short sp_y; 81 u_char sp_z; /* Z (pressure) */ 82 u_char sp_w; /* W (contact patch width) */ 83 signed short sp_sx; /* Secondary finger unscaled absolute */ 84 /* X/Y coordinates */ 85 signed short sp_xy; 86 u_char sp_finger; /* 0 for primary, 1 for secondary */ 87 char sp_left; /* Left mouse button status */ 88 char sp_right; /* Right mouse button status */ 89 char sp_middle; /* Middle button status (possibly emulated) */ 90 char sp_up; /* Up button status */ 91 char sp_down; /* Down button status */ 92 }; 93 94 static void pms_synaptics_input(void *, int); 95 static void pms_synaptics_process_packet(struct pms_softc *, 96 struct synaptics_packet *); 97 static void pms_sysctl_synaptics(struct sysctllog **); 98 static int pms_sysctl_synaptics_verify(SYSCTLFN_ARGS); 99 100 /* Controlled by sysctl. */ 101 static int synaptics_up_down_emul = 3; 102 static int synaptics_up_down_motion_delta = 1; 103 static int synaptics_gesture_move = 200; 104 static int synaptics_gesture_length = 20; 105 static int synaptics_edge_left = SYNAPTICS_EDGE_LEFT; 106 static int synaptics_edge_right = SYNAPTICS_EDGE_RIGHT; 107 static int synaptics_edge_top = SYNAPTICS_EDGE_TOP; 108 static int synaptics_edge_bottom = SYNAPTICS_EDGE_BOTTOM; 109 static int synaptics_edge_motion_delta = 32; 110 static u_int synaptics_finger_high = SYNAPTICS_FINGER_LIGHT + 5; 111 static u_int synaptics_finger_low = SYNAPTICS_FINGER_LIGHT - 10; 112 static int synaptics_button_boundary = SYNAPTICS_EDGE_BOTTOM + 720; 113 static int synaptics_button2 = SYNAPTICS_EDGE_LEFT + (SYNAPTICS_EDGE_RIGHT - SYNAPTICS_EDGE_LEFT) / 3; 114 static int synaptics_button3 = SYNAPTICS_EDGE_LEFT + 2 * (SYNAPTICS_EDGE_RIGHT - SYNAPTICS_EDGE_LEFT) / 3; 115 static int synaptics_two_fingers_emul = 0; 116 static int synaptics_scale_x = 16; 117 static int synaptics_scale_y = 16; 118 static int synaptics_scale_z = 32; 119 static int synaptics_max_speed_x = 32; 120 static int synaptics_max_speed_y = 32; 121 static int synaptics_max_speed_z = 2; 122 static int synaptics_movement_threshold = 4; 123 static int synaptics_fscroll_min = 13; 124 static int synaptics_fscroll_max = 14; 125 static int synaptics_dz_hold = 30; 126 static int synaptics_movement_enable = 1; 127 static bool synaptics_aux_mid_button_scroll = TRUE; 128 static int synaptics_debug = 0; 129 130 #define DPRINTF(SC, FMT, ARGS...) do \ 131 { \ 132 if (synaptics_debug) { \ 133 struct pms_softc *_dprintf_psc = \ 134 container_of((SC), struct pms_softc, u.synaptics); \ 135 device_printf(_dprintf_psc->sc_dev, FMT, ##ARGS); \ 136 } \ 137 } while (0) 138 139 /* Sysctl nodes. */ 140 static int synaptics_button_boundary_nodenum; 141 static int synaptics_button2_nodenum; 142 static int synaptics_button3_nodenum; 143 static int synaptics_up_down_emul_nodenum; 144 static int synaptics_up_down_motion_delta_nodenum; 145 static int synaptics_gesture_move_nodenum; 146 static int synaptics_gesture_length_nodenum; 147 static int synaptics_edge_left_nodenum; 148 static int synaptics_edge_right_nodenum; 149 static int synaptics_edge_top_nodenum; 150 static int synaptics_edge_bottom_nodenum; 151 static int synaptics_edge_motion_delta_nodenum; 152 static int synaptics_finger_high_nodenum; 153 static int synaptics_finger_low_nodenum; 154 static int synaptics_two_fingers_emul_nodenum; 155 static int synaptics_scale_x_nodenum; 156 static int synaptics_scale_y_nodenum; 157 static int synaptics_scale_z_nodenum; 158 static int synaptics_max_speed_x_nodenum; 159 static int synaptics_max_speed_y_nodenum; 160 static int synaptics_max_speed_z_nodenum; 161 static int synaptics_movement_threshold_nodenum; 162 static int synaptics_finger_scroll_min_nodenum; 163 static int synaptics_finger_scroll_max_nodenum; 164 static int synaptics_dz_hold_nodenum; 165 static int synaptics_movement_enable_nodenum; 166 static int synaptics_aux_mid_button_scroll_nodenum; 167 168 static int 169 synaptics_poll_cmd(struct pms_softc *psc, ...) 170 { 171 u_char cmd[4]; 172 size_t i; 173 va_list ap; 174 175 va_start(ap, psc); 176 177 for (i = 0; i < __arraycount(cmd); i++) 178 if ((cmd[i] = (u_char)va_arg(ap, int)) == 0) 179 break; 180 va_end(ap); 181 182 int res = pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, i, 0, 183 NULL, 0); 184 if (res) 185 aprint_error_dev(psc->sc_dev, "command error %#x\n", cmd[0]); 186 return res; 187 } 188 189 static int 190 synaptics_poll_reset(struct pms_softc *psc) 191 { 192 u_char resp[2]; 193 int res; 194 195 u_char cmd[1] = { PMS_RESET }; 196 res = pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, 1, 2, 197 resp, 1); 198 aprint_debug_dev(psc->sc_dev, "reset %d 0x%02x 0x%02x\n", 199 res, resp[0], resp[1]); 200 return res; 201 } 202 203 static int 204 synaptics_special_read(struct pms_softc *psc, u_char slice, u_char resp[3]) 205 { 206 u_char cmd[1] = { PMS_SEND_DEV_STATUS }; 207 int res = pms_sliced_command(psc->sc_kbctag, psc->sc_kbcslot, slice); 208 209 return res | pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, 210 cmd, 1, 3, resp, 0); 211 } 212 213 static int 214 synaptics_special_write(struct pms_softc *psc, u_char command, u_char arg) 215 { 216 int res = pms_sliced_command(psc->sc_kbctag, psc->sc_kbcslot, arg); 217 if (res) 218 return res; 219 220 u_char cmd[2]; 221 cmd[0] = PMS_SET_SAMPLE; 222 cmd[1] = command; 223 res = pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, 224 cmd, 2, 0, NULL, 0); 225 return res; 226 } 227 228 static void 229 pms_synaptics_probe_extended(struct pms_softc *psc) 230 { 231 struct synaptics_softc *sc = &psc->u.synaptics; 232 u_char resp[3]; 233 int res; 234 235 aprint_debug_dev(psc->sc_dev, 236 "synaptics_probe: Capabilities 0x%04x.\n", sc->caps); 237 if (sc->caps & SYNAPTICS_CAP_PASSTHROUGH) 238 sc->flags |= SYN_FLAG_HAS_PASSTHROUGH; 239 240 if (sc->caps & SYNAPTICS_CAP_PALMDETECT) 241 sc->flags |= SYN_FLAG_HAS_PALM_DETECT; 242 243 if (sc->caps & SYNAPTICS_CAP_MULTIDETECT) 244 sc->flags |= SYN_FLAG_HAS_MULTI_FINGER; 245 246 if (sc->caps & SYNAPTICS_CAP_MULTIFINGERREPORT) 247 sc->flags |= SYN_FLAG_HAS_MULTI_FINGER_REPORT; 248 249 /* Ask about extra buttons to detect up/down. */ 250 if (((sc->caps & SYNAPTICS_CAP_EXTNUM) + 0x08) 251 >= SYNAPTICS_EXTENDED_QUERY) 252 { 253 res = synaptics_special_read(psc, SYNAPTICS_EXTENDED_QUERY, resp); 254 if (res == 0) { 255 int buttons = (resp[1] >> 4); 256 aprint_debug_dev(psc->sc_dev, 257 "%s: Extended Buttons: %d.\n", __func__, buttons); 258 259 aprint_debug_dev(psc->sc_dev, "%s: Extended " 260 "Capabilities: 0x%02x 0x%02x 0x%02x.\n", __func__, 261 resp[0], resp[1], resp[2]); 262 if (buttons >= 2) { 263 /* Yes. */ 264 sc->flags |= SYN_FLAG_HAS_UP_DOWN_BUTTONS; 265 } 266 if (resp[0] & 0x1) { 267 /* Vertical scroll area */ 268 sc->flags |= SYN_FLAG_HAS_VERTICAL_SCROLL; 269 } 270 if (resp[0] & 0x2) { 271 /* Horizontal scroll area */ 272 sc->flags |= SYN_FLAG_HAS_HORIZONTAL_SCROLL; 273 } 274 if (resp[0] & 0x4) { 275 /* Extended W-Mode */ 276 sc->flags |= SYN_FLAG_HAS_EXTENDED_WMODE; 277 } 278 } 279 } 280 281 /* Ask about click pad */ 282 if (((sc->caps & SYNAPTICS_CAP_EXTNUM) + 0x08) >= 283 SYNAPTICS_CONTINUED_CAPABILITIES) 284 { 285 res = synaptics_special_read(psc, 286 SYNAPTICS_CONTINUED_CAPABILITIES, resp); 287 288 /* 289 * The following describes response for the 290 * SYNAPTICS_CONTINUED_CAPABILITIES query. 291 * 292 * byte mask name meaning 293 * ---- ---- ------- ------------ 294 * 0 0x01 adjustable threshold capacitive button sensitivity 295 * can be adjusted 296 * 0 0x02 report max query 0x0d gives max coord reported 297 * 0 0x04 clearpad sensor is ClearPad product 298 * 0 0x08 advanced gesture not particularly meaningful 299 * 0 0x10 clickpad bit 0 1-button ClickPad 300 * 0 0x60 multifinger mode identifies firmware finger counting 301 * (not reporting!) algorithm. 302 * Not particularly meaningful 303 * 0 0x80 covered pad W clipped to 14, 15 == pad mostly covered 304 * 1 0x01 clickpad bit 1 2-button ClickPad 305 * 1 0x02 deluxe LED controls touchpad support LED commands 306 * ala multimedia control bar 307 * 1 0x04 reduced filtering firmware does less filtering on 308 * position data, driver should watch 309 * for noise. 310 * 1 0x08 image sensor image sensor tracks 5 fingers, but only 311 * reports 2. 312 * 1 0x10 uniform clickpad whole clickpad moves instead of being 313 * hinged at the top. 314 * 1 0x20 report min query 0x0f gives min coord reported 315 */ 316 if (res == 0) { 317 uint val = SYN_CCAP_VALUE(resp); 318 319 aprint_debug_dev(psc->sc_dev, "%s: Continued " 320 "Capabilities 0x%02x 0x%02x 0x%02x.\n", __func__, 321 resp[0], resp[1], resp[2]); 322 switch (SYN_CCAP_CLICKPAD_TYPE(val)) { 323 case 0: /* not a clickpad */ 324 break; 325 case 1: 326 sc->flags |= SYN_FLAG_HAS_ONE_BUTTON_CLICKPAD; 327 break; 328 case 2: 329 sc->flags |= SYN_FLAG_HAS_TWO_BUTTON_CLICKPAD; 330 break; 331 case 3: /* reserved */ 332 default: 333 /* unreached */ 334 break; 335 } 336 337 if ((val & SYN_CCAP_HAS_ADV_GESTURE_MODE)) 338 sc->flags |= SYN_FLAG_HAS_ADV_GESTURE_MODE; 339 } 340 } 341 } 342 343 static const struct { 344 int bit; 345 const char *desc; 346 } syn_flags[] = { 347 { SYN_FLAG_HAS_EXTENDED_WMODE, "Extended W mode", }, 348 { SYN_FLAG_HAS_PASSTHROUGH, "Passthrough", }, 349 { SYN_FLAG_HAS_MIDDLE_BUTTON, "Middle button", }, 350 { SYN_FLAG_HAS_BUTTONS_4_5, "Buttons 4/5", }, 351 { SYN_FLAG_HAS_UP_DOWN_BUTTONS, "Up/down buttons", }, 352 { SYN_FLAG_HAS_PALM_DETECT, "Palm detect", }, 353 { SYN_FLAG_HAS_ONE_BUTTON_CLICKPAD, "One button click pad", }, 354 { SYN_FLAG_HAS_TWO_BUTTON_CLICKPAD, "Two button click pad", }, 355 { SYN_FLAG_HAS_VERTICAL_SCROLL, "Vertical scroll", }, 356 { SYN_FLAG_HAS_HORIZONTAL_SCROLL, "Horizontal scroll", }, 357 { SYN_FLAG_HAS_MULTI_FINGER_REPORT, "Multi-finger Report", }, 358 { SYN_FLAG_HAS_MULTI_FINGER, "Multi-finger", }, 359 }; 360 361 int 362 pms_synaptics_probe_init(void *vsc) 363 { 364 struct pms_softc *psc = vsc; 365 struct synaptics_softc *sc = &psc->u.synaptics; 366 u_char cmd[1], resp[3]; 367 int res, ver_minor, ver_major; 368 struct sysctllog *clog = NULL; 369 370 res = pms_sliced_command(psc->sc_kbctag, psc->sc_kbcslot, 371 SYNAPTICS_IDENTIFY_TOUCHPAD); 372 cmd[0] = PMS_SEND_DEV_STATUS; 373 res |= pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, 1, 3, 374 resp, 0); 375 if (res) { 376 aprint_debug_dev(psc->sc_dev, 377 "synaptics_probe: Identify Touchpad error.\n"); 378 /* 379 * Reset device in case the probe confused it. 380 */ 381 doreset: 382 (void)synaptics_poll_reset(psc); 383 return res; 384 } 385 386 if (resp[1] != SYNAPTICS_MAGIC_BYTE) { 387 aprint_debug_dev(psc->sc_dev, 388 "synaptics_probe: Not synaptics.\n"); 389 res = 1; 390 goto doreset; 391 } 392 393 sc->flags = 0; 394 395 /* Check for minimum version and print a nice message. */ 396 ver_major = resp[2] & 0x0f; 397 ver_minor = resp[0]; 398 aprint_normal_dev(psc->sc_dev, "Synaptics touchpad version %d.%d\n", 399 ver_major, ver_minor); 400 if (ver_major * 10 + ver_minor < SYNAPTICS_MIN_VERSION) { 401 /* No capability query support. */ 402 sc->caps = 0; 403 goto done; 404 } 405 406 407 /* Query the hardware capabilities. */ 408 res = synaptics_special_read(psc, SYNAPTICS_READ_CAPABILITIES, resp); 409 if (res) { 410 /* Hmm, failed to get capabilites. */ 411 aprint_error_dev(psc->sc_dev, 412 "synaptics_probe: Failed to query capabilities.\n"); 413 goto doreset; 414 } 415 416 sc->caps = SYNAPTICS_CAP_VALUE(resp); 417 418 if (sc->caps & SYNAPTICS_CAP_MBUTTON) 419 sc->flags |= SYN_FLAG_HAS_MIDDLE_BUTTON; 420 421 if (sc->caps & SYNAPTICS_CAP_4BUTTON) 422 sc->flags |= SYN_FLAG_HAS_BUTTONS_4_5; 423 424 if (sc->caps & SYNAPTICS_CAP_EXTENDED) { 425 pms_synaptics_probe_extended(psc); 426 } 427 428 if (sc->flags) { 429 const char comma[] = ", "; 430 const char *sep = ""; 431 aprint_normal_dev(psc->sc_dev, ""); 432 for (size_t f = 0; f < __arraycount(syn_flags); f++) { 433 if (sc->flags & syn_flags[f].bit) { 434 aprint_normal("%s%s", sep, syn_flags[f].desc); 435 sep = comma; 436 } 437 } 438 aprint_normal("\n"); 439 } 440 441 done: 442 pms_sysctl_synaptics(&clog); 443 pckbport_set_inputhandler(psc->sc_kbctag, psc->sc_kbcslot, 444 pms_synaptics_input, psc, device_xname(psc->sc_dev)); 445 446 return (0); 447 } 448 449 void 450 pms_synaptics_enable(void *vsc) 451 { 452 struct pms_softc *psc = vsc; 453 struct synaptics_softc *sc = &psc->u.synaptics; 454 u_char enable_modes; 455 int res, i; 456 457 if (sc->flags & SYN_FLAG_HAS_PASSTHROUGH) { 458 /* 459 * Extended capability probes can confuse the passthrough 460 * device; reset the touchpad now to cure that. 461 */ 462 res = synaptics_poll_reset(psc); 463 } 464 465 /* 466 * Enable Absolute mode with W (width) reporting, and set 467 * the packet rate to maximum (80 packets per second). Enable 468 * extended W mode if supported so we can report second finger 469 * position. 470 */ 471 enable_modes = 472 SYNAPTICS_MODE_ABSOLUTE | SYNAPTICS_MODE_W | SYNAPTICS_MODE_RATE; 473 474 if (sc->flags & SYN_FLAG_HAS_EXTENDED_WMODE) 475 enable_modes |= SYNAPTICS_MODE_EXTENDED_W; 476 477 /* 478 * Synaptics documentation says to disable device before 479 * setting mode. 480 */ 481 synaptics_poll_cmd(psc, PMS_DEV_DISABLE, 0); 482 /* a couple of set scales to clear out pending commands */ 483 for (i = 0; i < 2; i++) 484 synaptics_poll_cmd(psc, PMS_SET_SCALE11, 0); 485 486 res = synaptics_special_write(psc, SYNAPTICS_CMD_SET_MODE2, enable_modes); 487 if (res) 488 aprint_error("synaptics: set mode error\n"); 489 490 /* a couple of set scales to clear out pending commands */ 491 for (i = 0; i < 2; i++) 492 synaptics_poll_cmd(psc, PMS_SET_SCALE11, 0); 493 494 /* Set advanced gesture mode */ 495 if ((sc->flags & SYN_FLAG_HAS_EXTENDED_WMODE) || 496 (sc->flags & SYN_FLAG_HAS_ADV_GESTURE_MODE)) 497 synaptics_special_write(psc, SYNAPTICS_WRITE_DELUXE_3, 0x3); 498 499 sc->up_down = 0; 500 sc->prev_fingers = 0; 501 sc->gesture_start_x = sc->gesture_start_y = 0; 502 sc->gesture_start_packet = 0; 503 sc->gesture_tap_packet = 0; 504 sc->gesture_type = 0; 505 sc->gesture_buttons = 0; 506 sc->dz_hold = 0; 507 for (i = 0; i < SYN_MAX_FINGERS; i++) { 508 sc->rem_x[i] = sc->rem_y[i] = sc->rem_z[i] = 0; 509 sc->movement_history[i] = 0; 510 } 511 sc->button_history = 0; 512 } 513 514 void 515 pms_synaptics_resume(void *vsc) 516 { 517 (void)synaptics_poll_reset(vsc); 518 } 519 520 static void 521 pms_sysctl_synaptics(struct sysctllog **clog) 522 { 523 int rc, root_num; 524 const struct sysctlnode *node; 525 526 if ((rc = sysctl_createv(clog, 0, NULL, &node, 527 CTLFLAG_PERMANENT, CTLTYPE_NODE, "synaptics", 528 SYSCTL_DESCR("Synaptics touchpad controls"), 529 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) 530 goto err; 531 532 root_num = node->sysctl_num; 533 534 if ((rc = sysctl_createv(clog, 0, NULL, &node, 535 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 536 CTLTYPE_INT, "up_down_emulation", 537 SYSCTL_DESCR("Middle button/Z-axis emulation with up/down buttons"), 538 pms_sysctl_synaptics_verify, 0, 539 &synaptics_up_down_emul, 540 0, CTL_HW, root_num, CTL_CREATE, 541 CTL_EOL)) != 0) 542 goto err; 543 544 synaptics_up_down_emul_nodenum = node->sysctl_num; 545 546 if ((rc = sysctl_createv(clog, 0, NULL, &node, 547 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 548 CTLTYPE_INT, "up_down_motion_delta", 549 SYSCTL_DESCR("Up/down button Z-axis emulation rate"), 550 pms_sysctl_synaptics_verify, 0, 551 &synaptics_up_down_motion_delta, 552 0, CTL_HW, root_num, CTL_CREATE, 553 CTL_EOL)) != 0) 554 goto err; 555 556 synaptics_up_down_motion_delta_nodenum = node->sysctl_num; 557 558 if ((rc = sysctl_createv(clog, 0, NULL, &node, 559 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 560 CTLTYPE_INT, "gesture_move", 561 SYSCTL_DESCR("Movement greater than this between taps cancels gesture"), 562 pms_sysctl_synaptics_verify, 0, 563 &synaptics_gesture_move, 564 0, CTL_HW, root_num, CTL_CREATE, 565 CTL_EOL)) != 0) 566 goto err; 567 568 synaptics_gesture_move_nodenum = node->sysctl_num; 569 570 if ((rc = sysctl_createv(clog, 0, NULL, &node, 571 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 572 CTLTYPE_INT, "gesture_length", 573 SYSCTL_DESCR("Time period in which tap is recognised as a gesture"), 574 pms_sysctl_synaptics_verify, 0, 575 &synaptics_gesture_length, 576 0, CTL_HW, root_num, CTL_CREATE, 577 CTL_EOL)) != 0) 578 goto err; 579 580 synaptics_gesture_length_nodenum = node->sysctl_num; 581 582 if ((rc = sysctl_createv(clog, 0, NULL, &node, 583 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 584 CTLTYPE_INT, "edge_left", 585 SYSCTL_DESCR("Define left edge of touchpad"), 586 pms_sysctl_synaptics_verify, 0, 587 &synaptics_edge_left, 588 0, CTL_HW, root_num, CTL_CREATE, 589 CTL_EOL)) != 0) 590 goto err; 591 592 synaptics_edge_left_nodenum = node->sysctl_num; 593 594 if ((rc = sysctl_createv(clog, 0, NULL, &node, 595 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 596 CTLTYPE_INT, "edge_right", 597 SYSCTL_DESCR("Define right edge of touchpad"), 598 pms_sysctl_synaptics_verify, 0, 599 &synaptics_edge_right, 600 0, CTL_HW, root_num, CTL_CREATE, 601 CTL_EOL)) != 0) 602 goto err; 603 604 synaptics_edge_right_nodenum = node->sysctl_num; 605 606 if ((rc = sysctl_createv(clog, 0, NULL, &node, 607 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 608 CTLTYPE_INT, "edge_top", 609 SYSCTL_DESCR("Define top edge of touchpad"), 610 pms_sysctl_synaptics_verify, 0, 611 &synaptics_edge_top, 612 0, CTL_HW, root_num, CTL_CREATE, 613 CTL_EOL)) != 0) 614 goto err; 615 616 synaptics_edge_top_nodenum = node->sysctl_num; 617 618 if ((rc = sysctl_createv(clog, 0, NULL, &node, 619 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 620 CTLTYPE_INT, "edge_bottom", 621 SYSCTL_DESCR("Define bottom edge of touchpad"), 622 pms_sysctl_synaptics_verify, 0, 623 &synaptics_edge_bottom, 624 0, CTL_HW, root_num, CTL_CREATE, 625 CTL_EOL)) != 0) 626 goto err; 627 628 synaptics_edge_bottom_nodenum = node->sysctl_num; 629 630 if ((rc = sysctl_createv(clog, 0, NULL, &node, 631 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 632 CTLTYPE_INT, "edge_motion_delta", 633 SYSCTL_DESCR("Define edge motion rate"), 634 pms_sysctl_synaptics_verify, 0, 635 &synaptics_edge_motion_delta, 636 0, CTL_HW, root_num, CTL_CREATE, 637 CTL_EOL)) != 0) 638 goto err; 639 640 synaptics_edge_motion_delta_nodenum = node->sysctl_num; 641 642 if ((rc = sysctl_createv(clog, 0, NULL, &node, 643 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 644 CTLTYPE_INT, "finger_high", 645 SYSCTL_DESCR("Define finger applied pressure threshold"), 646 pms_sysctl_synaptics_verify, 0, 647 &synaptics_finger_high, 648 0, CTL_HW, root_num, CTL_CREATE, 649 CTL_EOL)) != 0) 650 goto err; 651 652 synaptics_finger_high_nodenum = node->sysctl_num; 653 654 if ((rc = sysctl_createv(clog, 0, NULL, &node, 655 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 656 CTLTYPE_INT, "finger_low", 657 SYSCTL_DESCR("Define finger removed pressure threshold"), 658 pms_sysctl_synaptics_verify, 0, 659 &synaptics_finger_low, 660 0, CTL_HW, root_num, CTL_CREATE, 661 CTL_EOL)) != 0) 662 goto err; 663 664 synaptics_finger_low_nodenum = node->sysctl_num; 665 666 if ((rc = sysctl_createv(clog, 0, NULL, &node, 667 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 668 CTLTYPE_INT, "two_fingers_emulation", 669 SYSCTL_DESCR("Map two fingers to middle button"), 670 pms_sysctl_synaptics_verify, 0, 671 &synaptics_two_fingers_emul, 672 0, CTL_HW, root_num, CTL_CREATE, 673 CTL_EOL)) != 0) 674 goto err; 675 676 synaptics_two_fingers_emul_nodenum = node->sysctl_num; 677 678 if ((rc = sysctl_createv(clog, 0, NULL, &node, 679 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 680 CTLTYPE_INT, "scale_x", 681 SYSCTL_DESCR("Horizontal movement scale factor"), 682 pms_sysctl_synaptics_verify, 0, 683 &synaptics_scale_x, 684 0, CTL_HW, root_num, CTL_CREATE, 685 CTL_EOL)) != 0) 686 goto err; 687 688 synaptics_scale_x_nodenum = node->sysctl_num; 689 690 if ((rc = sysctl_createv(clog, 0, NULL, &node, 691 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 692 CTLTYPE_INT, "scale_y", 693 SYSCTL_DESCR("Vertical movement scale factor"), 694 pms_sysctl_synaptics_verify, 0, 695 &synaptics_scale_y, 696 0, CTL_HW, root_num, CTL_CREATE, 697 CTL_EOL)) != 0) 698 goto err; 699 700 synaptics_scale_y_nodenum = node->sysctl_num; 701 702 if ((rc = sysctl_createv(clog, 0, NULL, &node, 703 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 704 CTLTYPE_INT, "scale_z", 705 SYSCTL_DESCR("Sroll wheel emulation scale factor"), 706 pms_sysctl_synaptics_verify, 0, 707 &synaptics_scale_z, 708 0, CTL_HW, root_num, CTL_CREATE, 709 CTL_EOL)) != 0) 710 goto err; 711 712 synaptics_scale_z_nodenum = node->sysctl_num; 713 714 if ((rc = sysctl_createv(clog, 0, NULL, &node, 715 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 716 CTLTYPE_INT, "max_speed_x", 717 SYSCTL_DESCR("Horizontal movement maximum speed"), 718 pms_sysctl_synaptics_verify, 0, 719 &synaptics_max_speed_x, 720 0, CTL_HW, root_num, CTL_CREATE, 721 CTL_EOL)) != 0) 722 goto err; 723 724 synaptics_max_speed_x_nodenum = node->sysctl_num; 725 726 if ((rc = sysctl_createv(clog, 0, NULL, &node, 727 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 728 CTLTYPE_INT, "max_speed_y", 729 SYSCTL_DESCR("Vertical movement maximum speed"), 730 pms_sysctl_synaptics_verify, 0, 731 &synaptics_max_speed_y, 732 0, CTL_HW, root_num, CTL_CREATE, 733 CTL_EOL)) != 0) 734 goto err; 735 736 synaptics_max_speed_y_nodenum = node->sysctl_num; 737 738 if ((rc = sysctl_createv(clog, 0, NULL, &node, 739 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 740 CTLTYPE_INT, "max_speed_z", 741 SYSCTL_DESCR("Scroll wheel emulation maximum speed"), 742 pms_sysctl_synaptics_verify, 0, 743 &synaptics_max_speed_z, 744 0, CTL_HW, root_num, CTL_CREATE, 745 CTL_EOL)) != 0) 746 goto err; 747 748 synaptics_max_speed_z_nodenum = node->sysctl_num; 749 750 if ((rc = sysctl_createv(clog, 0, NULL, &node, 751 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 752 CTLTYPE_INT, "movement_threshold", 753 SYSCTL_DESCR("Minimum reported movement threshold"), 754 pms_sysctl_synaptics_verify, 0, 755 &synaptics_movement_threshold, 756 0, CTL_HW, root_num, CTL_CREATE, 757 CTL_EOL)) != 0) 758 goto err; 759 760 synaptics_movement_threshold_nodenum = node->sysctl_num; 761 762 if ((rc = sysctl_createv(clog, 0, NULL, &node, 763 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 764 CTLTYPE_INT, "movement_enable", 765 SYSCTL_DESCR("Enable movement reporting"), 766 pms_sysctl_synaptics_verify, 0, 767 &synaptics_movement_enable, 768 0, CTL_HW, root_num, CTL_CREATE, 769 CTL_EOL)) != 0) 770 goto err; 771 772 synaptics_movement_enable_nodenum = node->sysctl_num; 773 774 if ((rc = sysctl_createv(clog, 0, NULL, &node, 775 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 776 CTLTYPE_INT, "button_boundary", 777 SYSCTL_DESCR("Top edge of button area"), 778 pms_sysctl_synaptics_verify, 0, 779 &synaptics_button_boundary, 780 0, CTL_HW, root_num, CTL_CREATE, 781 CTL_EOL)) != 0) 782 goto err; 783 784 synaptics_button_boundary_nodenum = node->sysctl_num; 785 786 if ((rc = sysctl_createv(clog, 0, NULL, &node, 787 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 788 CTLTYPE_INT, "button2_edge", 789 SYSCTL_DESCR("Left edge of button 2 region"), 790 pms_sysctl_synaptics_verify, 0, 791 &synaptics_button2, 792 0, CTL_HW, root_num, CTL_CREATE, 793 CTL_EOL)) != 0) 794 goto err; 795 796 synaptics_button2_nodenum = node->sysctl_num; 797 798 if ((rc = sysctl_createv(clog, 0, NULL, &node, 799 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 800 CTLTYPE_INT, "button3_edge", 801 SYSCTL_DESCR("Left edge of button 3 region"), 802 pms_sysctl_synaptics_verify, 0, 803 &synaptics_button3, 804 0, CTL_HW, root_num, CTL_CREATE, 805 CTL_EOL)) != 0) 806 goto err; 807 808 synaptics_button3_nodenum = node->sysctl_num; 809 810 if ((rc = sysctl_createv(clog, 0, NULL, &node, 811 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 812 CTLTYPE_INT, "finger_scroll-min", 813 SYSCTL_DESCR("Minimum width at which y cursor movements will be converted to scroll wheel events"), 814 pms_sysctl_synaptics_verify, 0, 815 &synaptics_fscroll_min, 816 0, CTL_HW, root_num, CTL_CREATE, 817 CTL_EOL)) != 0) 818 goto err; 819 820 synaptics_finger_scroll_min_nodenum = node->sysctl_num; 821 822 if ((rc = sysctl_createv(clog, 0, NULL, &node, 823 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 824 CTLTYPE_INT, "finger_scroll-max", 825 SYSCTL_DESCR("Maximum width at which y cursor movements will be converted to scroll wheel events"), 826 pms_sysctl_synaptics_verify, 0, 827 &synaptics_fscroll_max, 828 0, CTL_HW, root_num, CTL_CREATE, 829 CTL_EOL)) != 0) 830 goto err; 831 832 synaptics_finger_scroll_max_nodenum = node->sysctl_num; 833 834 if ((rc = sysctl_createv(clog, 0, NULL, &node, 835 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 836 CTLTYPE_INT, "finger_scroll-hysteresis", 837 SYSCTL_DESCR("Number of packets to keep reporting y cursor movements as scroll wheel events"), 838 pms_sysctl_synaptics_verify, 0, 839 &synaptics_dz_hold, 840 0, CTL_HW, root_num, CTL_CREATE, 841 CTL_EOL)) != 0) 842 goto err; 843 844 synaptics_dz_hold_nodenum = node->sysctl_num; 845 846 if ((rc = sysctl_createv(clog, 0, NULL, &node, 847 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 848 CTLTYPE_BOOL, "aux_mid_button_scroll", 849 SYSCTL_DESCR("Interpet Y-Axis movement with the middle button held as scrolling on the passthrough device (e.g. TrackPoint)"), 850 pms_sysctl_synaptics_verify, 0, 851 &synaptics_aux_mid_button_scroll, 852 0, CTL_HW, root_num, CTL_CREATE, 853 CTL_EOL)) != 0) 854 goto err; 855 856 synaptics_aux_mid_button_scroll_nodenum = node->sysctl_num; 857 858 if ((rc = sysctl_createv(clog, 0, NULL, &node, 859 CTLFLAG_PERMANENT | CTLFLAG_READWRITE, 860 CTLTYPE_INT, "debug", 861 SYSCTL_DESCR("Enable debug output"), 862 NULL, 0, 863 &synaptics_debug, 864 0, CTL_HW, root_num, CTL_CREATE, 865 CTL_EOL)) != 0) 866 goto err; 867 868 return; 869 870 err: 871 aprint_error("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 872 } 873 874 static int 875 pms_sysctl_synaptics_verify(SYSCTLFN_ARGS) 876 { 877 int error, t; 878 struct sysctlnode node; 879 880 node = *rnode; 881 t = *(int *)rnode->sysctl_data; 882 node.sysctl_data = &t; 883 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 884 if (error || newp == NULL) 885 return error; 886 887 /* Sanity check the params. */ 888 if (node.sysctl_num == synaptics_up_down_emul_nodenum) { 889 if (t < 0 || t > 3) 890 return (EINVAL); 891 } else 892 if (node.sysctl_num == synaptics_two_fingers_emul_nodenum) { 893 if (t < 0 || t > 2) 894 return (EINVAL); 895 } else 896 if (node.sysctl_num == synaptics_gesture_length_nodenum || 897 node.sysctl_num == synaptics_edge_motion_delta_nodenum || 898 node.sysctl_num == synaptics_up_down_motion_delta_nodenum || 899 node.sysctl_num == synaptics_max_speed_x_nodenum || 900 node.sysctl_num == synaptics_max_speed_y_nodenum || 901 node.sysctl_num == synaptics_max_speed_z_nodenum) { 902 if (t < 0) 903 return (EINVAL); 904 } else 905 if (node.sysctl_num == synaptics_edge_left_nodenum || 906 node.sysctl_num == synaptics_edge_bottom_nodenum) { 907 if (t < 0 || t > (SYNAPTICS_EDGE_MAX / 2)) 908 return (EINVAL); 909 } else 910 if (node.sysctl_num == synaptics_edge_right_nodenum || 911 node.sysctl_num == synaptics_edge_top_nodenum) { 912 if (t < (SYNAPTICS_EDGE_MAX / 2)) 913 return (EINVAL); 914 } else 915 if (node.sysctl_num == synaptics_scale_x_nodenum || 916 node.sysctl_num == synaptics_scale_y_nodenum || 917 node.sysctl_num == synaptics_scale_z_nodenum) { 918 if (t < 1 || t > (SYNAPTICS_EDGE_MAX / 4)) 919 return (EINVAL); 920 } else 921 if (node.sysctl_num == synaptics_finger_high_nodenum) { 922 if (t < 0 || t > SYNAPTICS_FINGER_PALM || 923 t < synaptics_finger_low) 924 return (EINVAL); 925 } else 926 if (node.sysctl_num == synaptics_finger_low_nodenum) { 927 if (t < 0 || t > SYNAPTICS_FINGER_PALM || 928 t > synaptics_finger_high) 929 return (EINVAL); 930 } else 931 if (node.sysctl_num == synaptics_gesture_move_nodenum || 932 node.sysctl_num == synaptics_movement_threshold_nodenum) { 933 if (t < 0 || t > (SYNAPTICS_EDGE_MAX / 4)) 934 return (EINVAL); 935 } else 936 if (node.sysctl_num == synaptics_button_boundary_nodenum) { 937 if (t < 0 || t < SYNAPTICS_EDGE_BOTTOM || 938 t > SYNAPTICS_EDGE_TOP) 939 return (EINVAL); 940 } else 941 if (node.sysctl_num == synaptics_button2_nodenum || 942 node.sysctl_num == synaptics_button3_nodenum) { 943 if (t < SYNAPTICS_EDGE_LEFT || t > SYNAPTICS_EDGE_RIGHT) 944 return (EINVAL); 945 } else 946 if (node.sysctl_num == synaptics_finger_scroll_min_nodenum || 947 node.sysctl_num == synaptics_finger_scroll_max_nodenum) { 948 /* make sure we avoid the "magic" widths, 4 and below 949 are for fingers, 15 is palm detect. */ 950 if ((t < 5) || (t > 14)) 951 return (EINVAL); 952 } else 953 if (node.sysctl_num == synaptics_dz_hold_nodenum) { 954 if (t < 0) 955 return (EINVAL); 956 } else 957 if (node.sysctl_num == synaptics_movement_enable_nodenum) { 958 if (t < 0 || t > 1) 959 return (EINVAL); 960 } else 961 if (node.sysctl_num == synaptics_aux_mid_button_scroll_nodenum) { 962 if (t < 0 || t > 1) 963 return (EINVAL); 964 } else 965 return (EINVAL); 966 967 *(int *)rnode->sysctl_data = t; 968 969 return (0); 970 } 971 972 /* Masks for the first byte of a packet */ 973 #define PMS_LBUTMASK 0x01 974 #define PMS_RBUTMASK 0x02 975 #define PMS_MBUTMASK 0x04 976 977 static void 978 pms_synaptics_parse(struct pms_softc *psc) 979 { 980 struct synaptics_softc *sc = &psc->u.synaptics; 981 struct synaptics_packet sp; 982 char new_buttons, ew_mode; 983 984 memset(&sp, 0, sizeof(sp)); 985 986 /* Width of finger */ 987 sp.sp_w = ((psc->packet[0] & 0x30) >> 2) + 988 ((psc->packet[0] & 0x04) >> 1) + 989 ((psc->packet[3] & 0x04) >> 2); 990 sp.sp_finger = 0; 991 if ((sc->flags & SYN_FLAG_HAS_EXTENDED_WMODE) && 992 (sp.sp_w == SYNAPTICS_WIDTH_EXTENDED_W)) { 993 ew_mode = psc->packet[5] >> 4; 994 switch (ew_mode) 995 { 996 case SYNAPTICS_EW_WHEEL: 997 /* scroll wheel report, ignore for now */ 998 aprint_debug_dev(psc->sc_dev, "mouse wheel packet\n"); 999 return; 1000 1001 case SYNAPTICS_EW_SECONDARY_FINGER: 1002 /* parse the second finger report */ 1003 1004 sp.sp_finger = 1; /* just one other finger for now */ 1005 sp.sp_x = psc->packet[1] 1006 + ((psc->packet[4] & 0x0f) << 8); 1007 sp.sp_y = psc->packet[2] 1008 + ((psc->packet[4] & 0xf0) << 4); 1009 sp.sp_z = (psc->packet[3] & 0x30) 1010 + (psc->packet[5] & 0x0f); 1011 1012 /* keep same buttons down as primary */ 1013 sp.sp_left = sc->button_history & PMS_LBUTMASK; 1014 sp.sp_middle = sc->button_history & PMS_MBUTMASK; 1015 sp.sp_right = sc->button_history & PMS_RBUTMASK; 1016 break; 1017 1018 case SYNAPTICS_EW_FINGER_STATUS: 1019 /* reports which finger is primary/secondary 1020 * ignore for now. 1021 */ 1022 return; 1023 1024 default: 1025 aprint_error_dev(psc->sc_dev, 1026 "invalid extended w mode %d\n", 1027 ew_mode); 1028 return; 1029 } 1030 } else { 1031 1032 /* Absolute X/Y coordinates of finger */ 1033 sp.sp_x = psc->packet[4] + ((psc->packet[1] & 0x0f) << 8) + 1034 ((psc->packet[3] & 0x10) << 8); 1035 sp.sp_y = psc->packet[5] + ((psc->packet[1] & 0xf0) << 4) + 1036 ((psc->packet[3] & 0x20) << 7); 1037 1038 /* Pressure */ 1039 sp.sp_z = psc->packet[2]; 1040 1041 if ((psc->packet[0] ^ psc->packet[3]) & 0x02) { 1042 /* extended buttons */ 1043 1044 aprint_debug_dev(psc->sc_dev, 1045 "synaptics_parse: %02x %02x %02x %02x %02x %02x\n", 1046 psc->packet[0], psc->packet[1], psc->packet[2], 1047 psc->packet[3], psc->packet[4], psc->packet[5]); 1048 1049 if ((psc->packet[4] & SYN_1BUTMASK) != 0) 1050 sc->ext_left = PMS_LBUTMASK; 1051 else 1052 sc->ext_left = 0; 1053 1054 if ((psc->packet[4] & SYN_3BUTMASK) != 0) 1055 sc->ext_middle = PMS_MBUTMASK; 1056 else 1057 sc->ext_middle = 0; 1058 1059 if ((psc->packet[5] & SYN_2BUTMASK) != 0) 1060 sc->ext_right = PMS_RBUTMASK; 1061 else 1062 sc->ext_right = 0; 1063 1064 if ((psc->packet[5] & SYN_4BUTMASK) != 0) 1065 sc->ext_up = 1; 1066 else 1067 sc->ext_up = 0; 1068 1069 if ((psc->packet[4] & SYN_5BUTMASK) != 0) 1070 sc->ext_down = 1; 1071 else 1072 sc->ext_down = 0; 1073 } else { 1074 /* Left/Right button handling. */ 1075 sp.sp_left = psc->packet[0] & PMS_LBUTMASK; 1076 sp.sp_right = psc->packet[0] & PMS_RBUTMASK; 1077 } 1078 1079 /* Up/Down buttons. */ 1080 if (sc->flags & SYN_FLAG_HAS_BUTTONS_4_5) { 1081 /* Old up/down buttons. */ 1082 sp.sp_up = sp.sp_left ^ 1083 (psc->packet[3] & PMS_LBUTMASK); 1084 sp.sp_down = sp.sp_right ^ 1085 (psc->packet[3] & PMS_RBUTMASK); 1086 } else if (sc->flags & SYN_FLAG_HAS_UP_DOWN_BUTTONS && 1087 ((psc->packet[0] & PMS_RBUTMASK) ^ 1088 (psc->packet[3] & PMS_RBUTMASK))) { 1089 /* New up/down button. */ 1090 sp.sp_up = psc->packet[4] & SYN_1BUTMASK; 1091 sp.sp_down = psc->packet[5] & SYN_2BUTMASK; 1092 } else { 1093 sp.sp_up = 0; 1094 sp.sp_down = 0; 1095 } 1096 1097 new_buttons = 0; 1098 if(sc->flags & SYN_FLAG_HAS_ONE_BUTTON_CLICKPAD) { 1099 /* This is not correctly specified. Read this button press 1100 * from L/U bit. Emulate 3 buttons by checking the 1101 * coordinates of the click and returning the appropriate 1102 * button code. Outside the button region default to a 1103 * left click. 1104 */ 1105 u_char bstate = (psc->packet[0] ^ psc->packet[3]) 1106 & 0x01; 1107 if (sp.sp_y < synaptics_button_boundary) { 1108 if (sp.sp_x > synaptics_button3) { 1109 sp.sp_right = 1110 bstate ? PMS_RBUTMASK : 0; 1111 } else if (sp.sp_x > synaptics_button2) { 1112 sp.sp_middle = 1113 bstate ? PMS_MBUTMASK : 0; 1114 } else { 1115 sp.sp_left = bstate ? PMS_LBUTMASK : 0; 1116 } 1117 } else 1118 sp.sp_left = bstate ? 1 : 0; 1119 new_buttons = sp.sp_left | sp.sp_middle | sp.sp_right; 1120 if (new_buttons != sc->button_history) { 1121 if (sc->button_history == 0) 1122 sc->button_history = new_buttons; 1123 else if (new_buttons == 0) { 1124 sc->button_history = 0; 1125 /* ensure all buttons are cleared just in 1126 * case finger comes off in a different 1127 * region. 1128 */ 1129 sp.sp_left = 0; 1130 sp.sp_middle = 0; 1131 sp.sp_right = 0; 1132 } else { 1133 /* make sure we keep the same button even 1134 * if the finger moves to a different 1135 * region. This precludes chording 1136 * but, oh well. 1137 */ 1138 sp.sp_left = sc->button_history & PMS_LBUTMASK; 1139 sp.sp_middle = sc->button_history 1140 & PMS_MBUTMASK; 1141 sp.sp_right = sc->button_history & PMS_RBUTMASK; 1142 } 1143 } 1144 } else if (sc->flags & SYN_FLAG_HAS_MIDDLE_BUTTON) { 1145 /* Old style Middle Button. */ 1146 sp.sp_middle = (psc->packet[0] & PMS_LBUTMASK) ^ 1147 (psc->packet[3] & PMS_LBUTMASK); 1148 } else if (synaptics_up_down_emul != 1) { 1149 sp.sp_middle = 0; 1150 } 1151 1152 /* Overlay extended button state */ 1153 sp.sp_left |= sc->ext_left; 1154 sp.sp_right |= sc->ext_right; 1155 sp.sp_middle |= sc->ext_middle; 1156 sp.sp_up |= sc->ext_up; 1157 sp.sp_down |= sc->ext_down; 1158 1159 switch (synaptics_up_down_emul) { 1160 case 1: 1161 /* Do middle button emulation using up/down buttons */ 1162 sp.sp_middle = sp.sp_up | sp.sp_down; 1163 sp.sp_up = sp.sp_down = 0; 1164 break; 1165 case 3: 1166 /* Do left/right button emulation using up/down buttons */ 1167 sp.sp_left = sp.sp_left | sp.sp_up; 1168 sp.sp_right = sp.sp_right | sp.sp_down; 1169 sp.sp_up = sp.sp_down = 0; 1170 break; 1171 default: 1172 /* 1173 * Don't do any remapping... 1174 * Z-axis emulation is handled in pms_synaptics_process_packet 1175 */ 1176 break; 1177 } 1178 } 1179 1180 pms_synaptics_process_packet(psc, &sp); 1181 } 1182 1183 /* 1184 * Passthrough is used for e.g. TrackPoints and additional pointing 1185 * devices connected to a Synaptics touchpad. 1186 */ 1187 static void 1188 pms_synaptics_passthrough(struct pms_softc *psc) 1189 { 1190 int dx, dy, dz; 1191 int buttons, changed; 1192 int s; 1193 1194 buttons = ((psc->packet[1] & PMS_LBUTMASK) ? 0x20 : 0) | 1195 ((psc->packet[1] & PMS_MBUTMASK) ? 0x40 : 0) | 1196 ((psc->packet[1] & PMS_RBUTMASK) ? 0x80 : 0); 1197 1198 dx = psc->packet[4]; 1199 if (dx >= 128) 1200 dx -= 256; 1201 if (dx == -128) 1202 dx = -127; 1203 1204 dy = psc->packet[5]; 1205 if (dy >= 128) 1206 dy -= 256; 1207 if (dy == -128) 1208 dy = -127; 1209 1210 dz = 0; 1211 1212 changed = buttons ^ (psc->buttons & 0xe0); 1213 psc->buttons ^= changed; 1214 1215 if (dx || dy || dz || changed) { 1216 /* 1217 * If the middle button is held, interpret Y-axis 1218 * movement as scrolling. 1219 */ 1220 if (synaptics_aux_mid_button_scroll && 1221 dy && (psc->buttons & 0x2)) { 1222 dz = -dy; 1223 dx = dy = 0; 1224 } 1225 buttons = (psc->buttons & 0x1f) | ((psc->buttons >> 5) & 0x7); 1226 s = spltty(); 1227 wsmouse_input(psc->sc_wsmousedev, 1228 buttons, dx, dy, dz, 0, 1229 WSMOUSE_INPUT_DELTA); 1230 splx(s); 1231 } 1232 } 1233 1234 static void 1235 pms_synaptics_input(void *vsc, int data) 1236 { 1237 struct pms_softc *psc = vsc; 1238 struct timeval diff; 1239 1240 if (!psc->sc_enabled) { 1241 /* Interrupts are not expected. Discard the byte. */ 1242 return; 1243 } 1244 1245 getmicrouptime(&psc->current); 1246 1247 if (psc->inputstate > 0) { 1248 timersub(&psc->current, &psc->last, &diff); 1249 if (diff.tv_sec > 0 || diff.tv_usec >= 40000) { 1250 aprint_debug_dev(psc->sc_dev, 1251 "pms_synaptics_input: unusual delay (%ld.%06ld s), " 1252 "scheduling reset\n", 1253 (long)diff.tv_sec, (long)diff.tv_usec); 1254 printf("pms_synaptics_input: unusual delay (%ld.%06ld s), " 1255 "scheduling reset\n", 1256 (long)diff.tv_sec, (long)diff.tv_usec); 1257 psc->inputstate = 0; 1258 psc->sc_enabled = 0; 1259 wakeup(&psc->sc_enabled); 1260 return; 1261 } 1262 } 1263 psc->last = psc->current; 1264 1265 switch (psc->inputstate) { 1266 case -5: 1267 case -4: 1268 case -3: 1269 case -2: 1270 case -1: 1271 case 0: 1272 if ((data & 0xc8) != 0x80) { 1273 aprint_debug_dev(psc->sc_dev, 1274 "pms_synaptics_input: 0x%02x out of sync\n", data); 1275 /* use negative counts to limit resync phase */ 1276 psc->inputstate--; 1277 return; /* not in sync yet, discard input */ 1278 } 1279 psc->inputstate = 0; 1280 /*FALLTHROUGH*/ 1281 1282 case -6: 1283 case 3: 1284 if ((data & 8) == 8) { 1285 aprint_debug_dev(psc->sc_dev, 1286 "pms_synaptics_input: dropped in relative mode, reset\n"); 1287 psc->inputstate = 0; 1288 psc->sc_enabled = 0; 1289 wakeup(&psc->sc_enabled); 1290 return; 1291 } 1292 } 1293 1294 psc->packet[psc->inputstate++] = data & 0xff; 1295 if (psc->inputstate == 6) { 1296 /* 1297 * We have a complete packet. 1298 * Extract the pertinent details. 1299 */ 1300 psc->inputstate = 0; 1301 if ((psc->packet[0] & 0xfc) == 0x84 && 1302 (psc->packet[3] & 0xcc) == 0xc4) { 1303 /* W = SYNAPTICS_WIDTH_PASSTHROUGH, PS/2 passthrough */ 1304 pms_synaptics_passthrough(psc); 1305 } else { 1306 pms_synaptics_parse(psc); 1307 } 1308 } 1309 } 1310 1311 static inline int 1312 synaptics_finger_detect(struct synaptics_softc *sc, struct synaptics_packet *sp, 1313 int *palmp) 1314 { 1315 int fingers; 1316 1317 /* Assume no palm */ 1318 *palmp = 0; 1319 1320 /* 1321 * Apply some hysteresis when checking for a finger. 1322 * When the finger is first applied, we ignore it until the 1323 * pressure exceeds the 'high' threshold. The finger is considered 1324 * removed only when pressure falls beneath the 'low' threshold. 1325 */ 1326 if ((sc->prev_fingers == 0 && sp->sp_z > synaptics_finger_high) || 1327 (sc->prev_fingers != 0 && sp->sp_z > synaptics_finger_low)) 1328 fingers = 1; 1329 else 1330 fingers = 0; 1331 1332 /* 1333 * If the pad can't do palm detection, skip the rest. 1334 */ 1335 if (fingers == 0 || (sc->flags & SYN_FLAG_HAS_PALM_DETECT) == 0) 1336 return (fingers); 1337 1338 /* 1339 * Palm detection 1340 */ 1341 if (sp->sp_z > SYNAPTICS_FINGER_FLAT && 1342 sp->sp_w >= SYNAPTICS_WIDTH_PALM_MIN) 1343 *palmp = 1; 1344 1345 if (sc->prev_fingers == 0 && 1346 (sp->sp_z > SYNAPTICS_FINGER_FLAT || 1347 sp->sp_w >= SYNAPTICS_WIDTH_PALM_MIN)) { 1348 /* 1349 * Contact area or pressure is too great to be a finger. 1350 * Just ignore it for now. 1351 */ 1352 return (0); 1353 } 1354 1355 /* 1356 * Detect 2 and 3 fingers if supported, but only if multiple 1357 * fingers appear within the tap gesture time period. 1358 */ 1359 if (sc->flags & SYN_FLAG_HAS_MULTI_FINGER && 1360 SYN_TIME(sc, sc->gesture_start_packet, 1361 sp->sp_finger) < synaptics_gesture_length) { 1362 switch (sp->sp_w) { 1363 case SYNAPTICS_WIDTH_TWO_FINGERS: 1364 fingers = 2; 1365 break; 1366 1367 case SYNAPTICS_WIDTH_THREE_OR_MORE: 1368 fingers = 3; 1369 break; 1370 1371 default: 1372 /* 1373 * The width value can report spurious single-finger 1374 * events after a multi-finger event. 1375 */ 1376 fingers = sc->prev_fingers <= 1 ? 1 : sc->prev_fingers; 1377 break; 1378 } 1379 } 1380 1381 return (fingers); 1382 } 1383 1384 static inline void 1385 synaptics_gesture_detect(struct synaptics_softc *sc, 1386 struct synaptics_packet *sp, int fingers) 1387 { 1388 int gesture_len, gesture_buttons; 1389 int set_buttons; 1390 1391 gesture_len = SYN_TIME(sc, sc->gesture_start_packet, sp->sp_finger); 1392 gesture_buttons = sc->gesture_buttons; 1393 1394 if (fingers > 0 && (fingers == sc->prev_fingers)) { 1395 /* Finger is still present */ 1396 sc->gesture_move_x = abs(sc->gesture_start_x - sp->sp_x); 1397 sc->gesture_move_y = abs(sc->gesture_start_y - sp->sp_y); 1398 } else 1399 if (fingers && sc->prev_fingers == 0) { 1400 /* 1401 * Finger was just applied. 1402 * If the previous gesture was a single-click, set things 1403 * up to deal with a possible drag or double-click gesture. 1404 * Basically, if the finger is removed again within 1405 * 'synaptics_gesture_length' packets, this is treated 1406 * as a double-click. Otherwise we will emulate holding 1407 * the left button down whilst dragging the mouse. 1408 */ 1409 if (SYN_IS_SINGLE_TAP(sc->gesture_type)) 1410 sc->gesture_type |= SYN_GESTURE_DRAG; 1411 1412 sc->gesture_start_x = abs(sp->sp_x); 1413 sc->gesture_start_y = abs(sp->sp_y); 1414 sc->gesture_move_x = 0; 1415 sc->gesture_move_y = 0; 1416 sc->gesture_start_packet = sc->total_packets[0]; 1417 1418 DPRINTF(sc, "Finger applied:" 1419 " gesture_start_x: %d" 1420 " gesture_start_y: %d\n", 1421 sc->gesture_start_x, sc->gesture_start_y); 1422 } else 1423 if (fingers == 0 && sc->prev_fingers != 0) { 1424 /* 1425 * Finger was just removed. 1426 * Check if the contact time and finger movement were 1427 * small enough to qualify as a gesture. 1428 * Ignore finger movement if multiple fingers were 1429 * detected (the pad may report coordinates for any 1430 * of the fingers). 1431 */ 1432 1433 DPRINTF(sc, "Finger removed: gesture_len: %d (%d)\n", 1434 gesture_len, synaptics_gesture_length); 1435 DPRINTF(sc, "gesture_move_x: %d (%d) sp_x: %d\n", 1436 sc->gesture_move_x, synaptics_gesture_move, abs(sp->sp_x)); 1437 DPRINTF(sc, "gesture_move_y: %d (%d) sp_y: %d\n", 1438 sc->gesture_move_y, synaptics_gesture_move, abs(sp->sp_y)); 1439 1440 if (gesture_len < synaptics_gesture_length && 1441 ((sc->gesture_move_x < synaptics_gesture_move && 1442 sc->gesture_move_y < synaptics_gesture_move))) { 1443 /* 1444 * Looking good so far. 1445 */ 1446 if (SYN_IS_DRAG(sc->gesture_type)) { 1447 /* 1448 * Promote this gesture to double-click. 1449 */ 1450 sc->gesture_type |= SYN_GESTURE_DOUBLE; 1451 sc->gesture_type &= ~SYN_GESTURE_SINGLE; 1452 } else { 1453 /* 1454 * Single tap gesture. Set the tap length timer 1455 * and flag a single-click. 1456 */ 1457 sc->gesture_tap_packet = sc->total_packets[0]; 1458 sc->gesture_type |= SYN_GESTURE_SINGLE; 1459 1460 /* 1461 * The gesture can be modified depending on 1462 * the number of fingers detected. 1463 * 1464 * 1: Normal left button emulation. 1465 * 2: Either middle button or right button 1466 * depending on the value of the two_fingers 1467 * sysctl variable. 1468 * 3: Right button. 1469 */ 1470 switch (sc->prev_fingers) { 1471 case 2: 1472 if (synaptics_two_fingers_emul == 1) 1473 gesture_buttons |= PMS_RBUTMASK; 1474 else 1475 if (synaptics_two_fingers_emul == 2) 1476 gesture_buttons |= PMS_MBUTMASK; 1477 break; 1478 case 3: 1479 gesture_buttons |= PMS_RBUTMASK; 1480 break; 1481 default: 1482 gesture_buttons |= PMS_LBUTMASK; 1483 break; 1484 } 1485 } 1486 } 1487 1488 /* 1489 * Always clear drag state when the finger is removed. 1490 */ 1491 sc->gesture_type &= ~SYN_GESTURE_DRAG; 1492 } 1493 1494 if (sc->gesture_type == 0) { 1495 /* 1496 * There is no gesture in progress. 1497 * Clear emulated button state. 1498 */ 1499 sc->gesture_buttons = 0; 1500 return; 1501 } 1502 1503 /* 1504 * A gesture is in progress. 1505 */ 1506 set_buttons = 0; 1507 1508 if (SYN_IS_SINGLE_TAP(sc->gesture_type)) { 1509 /* 1510 * Single-click. 1511 * Activate the relevant button(s) until the 1512 * gesture tap timer has expired. 1513 */ 1514 if (SYN_TIME(sc, sc->gesture_tap_packet, sp->sp_finger) < 1515 synaptics_gesture_length) 1516 set_buttons = 1; 1517 else 1518 sc->gesture_type &= ~SYN_GESTURE_SINGLE; 1519 } else 1520 if (SYN_IS_DOUBLE_TAP(sc->gesture_type) && sc->prev_fingers == 0) { 1521 /* 1522 * Double-click. 1523 * Activate the relevant button(s) once. 1524 */ 1525 set_buttons = 1; 1526 sc->gesture_type &= ~SYN_GESTURE_DOUBLE; 1527 } 1528 1529 if (set_buttons || SYN_IS_DRAG(sc->gesture_type)) { 1530 /* 1531 * Single-click and drag. 1532 * Maintain button state until the finger is removed. 1533 */ 1534 sp->sp_left |= gesture_buttons & PMS_LBUTMASK; 1535 sp->sp_right |= gesture_buttons & PMS_RBUTMASK; 1536 sp->sp_middle |= gesture_buttons & PMS_MBUTMASK; 1537 } 1538 1539 sc->gesture_buttons = gesture_buttons; 1540 } 1541 1542 static inline int 1543 synaptics_filter_policy(struct synaptics_softc *sc, int finger, int *history, 1544 int value) 1545 { 1546 int a, b, rv, count; 1547 1548 count = sc->total_packets[finger]; 1549 1550 /* 1551 * Once we've accumulated at least SYN_HIST_SIZE values, combine 1552 * each new value with the previous two and return the average. 1553 * 1554 * This is necessary when the touchpad is operating in 80 packets 1555 * per second mode, as it performs little internal filtering on 1556 * reported values. 1557 * 1558 * Using a rolling average helps to filter out jitter caused by 1559 * tiny finger movements. 1560 */ 1561 if (sc->movement_history[finger] >= SYN_HIST_SIZE) { 1562 a = (history[(count + 0) % SYN_HIST_SIZE] + 1563 history[(count + 1) % SYN_HIST_SIZE]) / 2; 1564 1565 b = (value + history[(count + 0) % SYN_HIST_SIZE]) / 2; 1566 1567 rv = b - a; 1568 1569 /* 1570 * Don't report the movement if it's below a certain 1571 * threshold. 1572 */ 1573 if (abs(rv) < synaptics_movement_threshold) 1574 rv = 0; 1575 } else 1576 rv = 0; 1577 1578 /* 1579 * Add the new value to the history buffer. 1580 */ 1581 history[(count + 1) % SYN_HIST_SIZE] = value; 1582 1583 return (rv); 1584 } 1585 1586 /* Edge detection */ 1587 #define SYN_EDGE_TOP 1 1588 #define SYN_EDGE_BOTTOM 2 1589 #define SYN_EDGE_LEFT 4 1590 #define SYN_EDGE_RIGHT 8 1591 1592 static inline int 1593 synaptics_check_edge(int x, int y) 1594 { 1595 int rv = 0; 1596 1597 if (x < synaptics_edge_left) 1598 rv |= SYN_EDGE_LEFT; 1599 else 1600 if (x > synaptics_edge_right) 1601 rv |= SYN_EDGE_RIGHT; 1602 1603 if (y < synaptics_edge_bottom) 1604 rv |= SYN_EDGE_BOTTOM; 1605 else 1606 if (y > synaptics_edge_top) 1607 rv |= SYN_EDGE_TOP; 1608 1609 return (rv); 1610 } 1611 1612 static inline int 1613 synaptics_edge_motion(struct synaptics_softc *sc, int delta, int dir) 1614 { 1615 1616 /* 1617 * When edge motion is enabled, synaptics_edge_motion_delta is 1618 * combined with the current delta, together with the direction 1619 * in which to simulate the motion. The result is added to 1620 * the delta derived from finger movement. This provides a smooth 1621 * transition from finger movement to edge motion. 1622 */ 1623 delta = synaptics_edge_motion_delta + (dir * delta); 1624 if (delta < 0) 1625 return (0); 1626 if (delta > synaptics_edge_motion_delta) 1627 return (synaptics_edge_motion_delta); 1628 return (delta); 1629 } 1630 1631 static inline int 1632 synaptics_scale(int delta, int scale, int *remp) 1633 { 1634 int rv; 1635 1636 /* 1637 * Scale the raw delta in Synaptics coordinates (0-6143) into 1638 * something more reasonable by dividing the raw delta by a 1639 * scale factor. Any remainder from the previous scale result 1640 * is added to the current delta before scaling. 1641 * This prevents loss of resolution for very small/slow 1642 * movements of the finger. 1643 */ 1644 delta += *remp; 1645 rv = delta / scale; 1646 *remp = delta % scale; 1647 1648 return (rv); 1649 } 1650 1651 static inline void 1652 synaptics_movement(struct synaptics_softc *sc, struct synaptics_packet *sp, 1653 int finger, int scroll_emul, int *dxp, int *dyp, int *dzp) 1654 { 1655 int dx, dy, dz, edge; 1656 1657 dx = dy = dz = 0; 1658 1659 /* 1660 * Compute the next values of dx and dy and dz. If scroll_emul 1661 * is non-zero, take the dy and used it as use it as dz so we 1662 * can emulate a scroll wheel. 1663 */ 1664 if (scroll_emul == 0) { 1665 dx = synaptics_filter_policy(sc, finger, sc->history_x[finger], 1666 sp->sp_x); 1667 dy = synaptics_filter_policy(sc, finger, sc->history_y[finger], 1668 sp->sp_y); 1669 } else { 1670 dz = synaptics_filter_policy(sc, finger, sc->history_z[finger], 1671 sp->sp_y); 1672 dx = dy = 0; 1673 } 1674 1675 /* 1676 * If we're dealing with a drag gesture, and the finger moves to 1677 * the edge of the touchpad, apply edge motion emulation if it 1678 * is enabled. 1679 */ 1680 if (synaptics_edge_motion_delta && SYN_IS_DRAG(sc->gesture_type)) { 1681 edge = synaptics_check_edge(sp->sp_x, sp->sp_y); 1682 1683 if (edge & SYN_EDGE_LEFT) 1684 dx -= synaptics_edge_motion(sc, dx, 1); 1685 if (edge & SYN_EDGE_RIGHT) 1686 dx += synaptics_edge_motion(sc, dx, -1); 1687 if (edge & SYN_EDGE_BOTTOM) 1688 dy -= synaptics_edge_motion(sc, dy, 1); 1689 if (edge & SYN_EDGE_TOP) 1690 dy += synaptics_edge_motion(sc, dy, -1); 1691 } 1692 1693 /* 1694 * Apply scaling to the deltas 1695 */ 1696 dx = synaptics_scale(dx, synaptics_scale_x, &sc->rem_x[finger]); 1697 dy = synaptics_scale(dy, synaptics_scale_y, &sc->rem_y[finger]); 1698 dz = synaptics_scale(dz, synaptics_scale_z, &sc->rem_z[finger]); 1699 1700 /* 1701 * Clamp deltas to specified maximums. 1702 */ 1703 if (abs(dx) > synaptics_max_speed_x) 1704 dx = ((dx >= 0)? 1 : -1) * synaptics_max_speed_x; 1705 if (abs(dy) > synaptics_max_speed_y) 1706 dy = ((dy >= 0)? 1 : -1) * synaptics_max_speed_y; 1707 if (abs(dz) > synaptics_max_speed_z) 1708 dz = ((dz >= 0)? 1 : -1) * synaptics_max_speed_z; 1709 1710 *dxp = dx; 1711 *dyp = dy; 1712 *dzp = dz; 1713 1714 sc->movement_history[finger]++; 1715 } 1716 1717 static void 1718 pms_synaptics_process_packet(struct pms_softc *psc, struct synaptics_packet *sp) 1719 { 1720 struct synaptics_softc *sc = &psc->u.synaptics; 1721 int dx, dy, dz; 1722 int fingers, palm, buttons, changed; 1723 int s, z_emul; 1724 1725 /* 1726 * Do Z-axis emulation using up/down buttons if required. 1727 * Note that the pad will send a one second burst of packets 1728 * when an up/down button is pressed and held. At the moment 1729 * we don't deal with auto-repeat, so convert the burst into 1730 * a one-shot. 1731 */ 1732 dz = 0; 1733 if (synaptics_up_down_emul == 2) { 1734 if (sc->up_down == 0) { 1735 if (sp->sp_up && sp->sp_down) { 1736 sp->sp_middle = 1; 1737 } else if (sp->sp_up) { 1738 dz = -synaptics_up_down_motion_delta; 1739 } else if (sp->sp_down) { 1740 dz = synaptics_up_down_motion_delta; 1741 } 1742 } 1743 1744 sc->up_down = sp->sp_up | sp->sp_down; 1745 sp->sp_up = sp->sp_down = 0; 1746 } 1747 1748 /* 1749 * Determine whether or not a finger is on the pad. 1750 * On some pads, this will return the number of fingers 1751 * detected. 1752 */ 1753 fingers = synaptics_finger_detect(sc, sp, &palm); 1754 1755 /* 1756 * Do gesture processing only if we didn't detect a palm and 1757 * it is not the seondary finger. 1758 */ 1759 if ((sp->sp_finger == 0) && (palm == 0)) 1760 synaptics_gesture_detect(sc, sp, fingers); 1761 else 1762 sc->gesture_type = sc->gesture_buttons = 0; 1763 1764 /* 1765 * Determine what buttons to report 1766 */ 1767 buttons = (sp->sp_left ? 0x1 : 0) | 1768 (sp->sp_middle ? 0x2 : 0) | 1769 (sp->sp_right ? 0x4 : 0) | 1770 (sp->sp_up ? 0x8 : 0) | 1771 (sp->sp_down ? 0x10 : 0); 1772 changed = buttons ^ (psc->buttons & 0x1f); 1773 psc->buttons ^= changed; 1774 1775 sc->prev_fingers = fingers; 1776 sc->total_packets[sp->sp_finger]++; 1777 1778 /* 1779 * Do movement processing IFF we have a single finger and no palm or 1780 * a secondary finger and no palm. 1781 */ 1782 if (palm == 0 && synaptics_movement_enable) { 1783 if (fingers == 1) { 1784 z_emul = 0; 1785 1786 if ((sp->sp_w >= synaptics_fscroll_min) && 1787 (sp->sp_w <= synaptics_fscroll_max)) { 1788 z_emul = 1; 1789 sc->dz_hold = synaptics_dz_hold; 1790 } 1791 1792 if (sc->dz_hold > 0) { 1793 z_emul = 1; 1794 } 1795 1796 synaptics_movement(sc, sp, sp->sp_finger, 1797 z_emul, &dx, &dy, &dz); 1798 } else { 1799 /* 1800 * No valid finger. Therefore no movement. 1801 */ 1802 sc->movement_history[sp->sp_finger] = 0; 1803 sc->rem_x[sp->sp_finger] = sc->rem_y[sp->sp_finger] = 0; 1804 dx = dy = 0; 1805 } 1806 } else { 1807 /* 1808 * No valid finger. Therefore no movement. 1809 */ 1810 sc->movement_history[0] = 0; 1811 sc->rem_x[0] = sc->rem_y[0] = sc->rem_z[0] = 0; 1812 dx = dy = dz = 0; 1813 } 1814 1815 if (sc->dz_hold > 0) 1816 sc->dz_hold--; 1817 1818 /* 1819 * Pass the final results up to wsmouse_input() if necessary. 1820 */ 1821 if (dx || dy || dz || changed) { 1822 buttons = (psc->buttons & 0x1f) | ((psc->buttons >> 5) & 0x7); 1823 s = spltty(); 1824 wsmouse_input(psc->sc_wsmousedev, 1825 buttons, 1826 dx, dy, dz, 0, 1827 WSMOUSE_INPUT_DELTA); 1828 splx(s); 1829 } 1830 } 1831
Indexes created Wed Oct 01 19:09:53 GMT 2025