| 1 | /* $NetBSD: synaptics.c,v 1.33 2015/03/04 22:58:35 christos 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 1.33 2015/03/04 22:58:35 christos 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 | char sp_left; /* Left mouse button status */ |
| 84 | char sp_right; /* Right mouse button status */ |
| 85 | char sp_middle; /* Middle button status (possibly emulated) */ |
| 86 | char sp_up; /* Up button status */ |
| 87 | char sp_down; /* Down button status */ |
| 88 | }; |
| 89 | |
| 90 | static void pms_synaptics_input(void *, int); |
| 91 | static void pms_synaptics_process_packet(struct pms_softc *, |
| 92 | struct synaptics_packet *); |
| 93 | static void pms_sysctl_synaptics(struct sysctllog **); |
| 94 | static int pms_sysctl_synaptics_verify(SYSCTLFN_ARGS); |
| 95 | |
| 96 | /* Controlled by sysctl. */ |
| 97 | static int synaptics_up_down_emul = 2; |
| 98 | static int synaptics_up_down_motion_delta = 1; |
| 99 | static int synaptics_gesture_move = 200; |
| 100 | static int synaptics_gesture_length = 20; |
| 101 | static int synaptics_edge_left = SYNAPTICS_EDGE_LEFT; |
| 102 | static int synaptics_edge_right = SYNAPTICS_EDGE_RIGHT; |
| 103 | static int synaptics_edge_top = SYNAPTICS_EDGE_TOP; |
| 104 | static int synaptics_edge_bottom = SYNAPTICS_EDGE_BOTTOM; |
| 105 | static int synaptics_edge_motion_delta = 32; |
| 106 | static u_int synaptics_finger_high = SYNAPTICS_FINGER_LIGHT + 5; |
| 107 | static u_int synaptics_finger_low = SYNAPTICS_FINGER_LIGHT - 10; |
| 108 | static int synaptics_two_fingers_emul = 0; |
| 109 | static int synaptics_scale_x = 16; |
| 110 | static int synaptics_scale_y = 16; |
| 111 | static int synaptics_max_speed_x = 32; |
| 112 | static int synaptics_max_speed_y = 32; |
| 113 | static int synaptics_movement_threshold = 4; |
| 114 | |
| 115 | /* Sysctl nodes. */ |
| 116 | static int synaptics_up_down_emul_nodenum; |
| 117 | static int synaptics_up_down_motion_delta_nodenum; |
| 118 | static int synaptics_gesture_move_nodenum; |
| 119 | static int synaptics_gesture_length_nodenum; |
| 120 | static int synaptics_edge_left_nodenum; |
| 121 | static int synaptics_edge_right_nodenum; |
| 122 | static int synaptics_edge_top_nodenum; |
| 123 | static int synaptics_edge_bottom_nodenum; |
| 124 | static int synaptics_edge_motion_delta_nodenum; |
| 125 | static int synaptics_finger_high_nodenum; |
| 126 | static int synaptics_finger_low_nodenum; |
| 127 | static int synaptics_two_fingers_emul_nodenum; |
| 128 | static int synaptics_scale_x_nodenum; |
| 129 | static int synaptics_scale_y_nodenum; |
| 130 | static int synaptics_max_speed_x_nodenum; |
| 131 | static int synaptics_max_speed_y_nodenum; |
| 132 | static int synaptics_movement_threshold_nodenum; |
| 133 | |
| 134 | static void |
| 135 | pms_synaptics_probe_extended(struct pms_softc *psc) |
| 136 | { |
| 137 | struct synaptics_softc *sc = &psc->u.synaptics; |
| 138 | u_char cmd[1], resp[3]; |
| 139 | int res; |
| 140 | |
| 141 | aprint_debug_dev(psc->sc_dev, |
| 142 | "synaptics_probe: Capabilities 0x%04x.\n" , sc->caps); |
| 143 | if (sc->caps & SYNAPTICS_CAP_PASSTHROUGH) |
| 144 | sc->flags |= SYN_FLAG_HAS_PASSTHROUGH; |
| 145 | |
| 146 | if (sc->caps & SYNAPTICS_CAP_PALMDETECT) |
| 147 | sc->flags |= SYN_FLAG_HAS_PALM_DETECT; |
| 148 | |
| 149 | if (sc->caps & SYNAPTICS_CAP_MULTIDETECT) |
| 150 | sc->flags |= SYN_FLAG_HAS_MULTI_FINGER; |
| 151 | |
| 152 | if (sc->caps & SYNAPTICS_CAP_MULTIFINGERREPORT) |
| 153 | sc->flags |= SYN_FLAG_HAS_MULTI_FINGER_REPORT; |
| 154 | |
| 155 | /* Ask about extra buttons to detect up/down. */ |
| 156 | if (((sc->caps & SYNAPTICS_CAP_EXTNUM) + 0x08) |
| 157 | >= SYNAPTICS_EXTENDED_QUERY) |
| 158 | { |
| 159 | res = pms_sliced_command(psc->sc_kbctag, |
| 160 | psc->sc_kbcslot, SYNAPTICS_EXTENDED_QUERY); |
| 161 | cmd[0] = PMS_SEND_DEV_STATUS; |
| 162 | res |= pckbport_poll_cmd(psc->sc_kbctag, |
| 163 | psc->sc_kbcslot, cmd, 1, 3, resp, 0); |
| 164 | if (res == 0) { |
| 165 | int buttons = (resp[1] >> 4); |
| 166 | aprint_debug_dev(psc->sc_dev, |
| 167 | "%s: Extended Buttons: %d.\n" , __func__, buttons); |
| 168 | |
| 169 | aprint_debug_dev(psc->sc_dev, "%s: Extended " |
| 170 | "Capabilities: 0x%02x 0x%02x 0x%02x.\n" , __func__, |
| 171 | resp[0], resp[1], resp[2]); |
| 172 | if (buttons >= 2) { |
| 173 | /* Yes. */ |
| 174 | sc->flags |= SYN_FLAG_HAS_UP_DOWN_BUTTONS; |
| 175 | } |
| 176 | if (resp[0] & 0x1) { |
| 177 | /* Vertical scroll area */ |
| 178 | sc->flags |= SYN_FLAG_HAS_VERTICAL_SCROLL; |
| 179 | } |
| 180 | if (resp[0] & 0x2) { |
| 181 | /* Horizontal scroll area */ |
| 182 | sc->flags |= SYN_FLAG_HAS_HORIZONTAL_SCROLL; |
| 183 | } |
| 184 | if (resp[0] & 0x4) { |
| 185 | /* Extended W-Mode */ |
| 186 | sc->flags |= SYN_FLAG_HAS_EXTENDED_WMODE; |
| 187 | } |
| 188 | } |
| 189 | } |
| 190 | |
| 191 | /* Ask about click pad */ |
| 192 | if (((sc->caps & SYNAPTICS_CAP_EXTNUM) + 0x08) >= |
| 193 | SYNAPTICS_CONTINUED_CAPABILITIES) |
| 194 | { |
| 195 | res = pms_sliced_command(psc->sc_kbctag, |
| 196 | psc->sc_kbcslot, SYNAPTICS_CONTINUED_CAPABILITIES); |
| 197 | cmd[0] = PMS_SEND_DEV_STATUS; |
| 198 | res |= pckbport_poll_cmd(psc->sc_kbctag, |
| 199 | psc->sc_kbcslot, cmd, 1, 3, resp, 0); |
| 200 | /* |
| 201 | * The following describes response for the |
| 202 | * SYNAPTICS_CONTINUED_CAPABILITIES query. |
| 203 | * |
| 204 | * byte mask name meaning |
| 205 | * ---- ---- ------- ------------ |
| 206 | * 0 0x01 adjustable threshold capacitive button sensitivity |
| 207 | * can be adjusted |
| 208 | * 0 0x02 report max query 0x0d gives max coord reported |
| 209 | * 0 0x04 clearpad sensor is ClearPad product |
| 210 | * 0 0x08 advanced gesture not particularly meaningful |
| 211 | * 0 0x10 clickpad bit 0 1-button ClickPad |
| 212 | * 0 0x60 multifinger mode identifies firmware finger counting |
| 213 | * (not reporting!) algorithm. |
| 214 | * Not particularly meaningful |
| 215 | * 0 0x80 covered pad W clipped to 14, 15 == pad mostly covered |
| 216 | * 1 0x01 clickpad bit 1 2-button ClickPad |
| 217 | * 1 0x02 deluxe LED controls touchpad support LED commands |
| 218 | * ala multimedia control bar |
| 219 | * 1 0x04 reduced filtering firmware does less filtering on |
| 220 | * position data, driver should watch |
| 221 | * for noise. |
| 222 | * 1 0x08 image sensor image sensor tracks 5 fingers, but only |
| 223 | * reports 2. |
| 224 | * 1 0x01 uniform clickpad whole clickpad moves instead of being |
| 225 | * hinged at the top. |
| 226 | * 1 0x20 report min query 0x0f gives min coord reported |
| 227 | */ |
| 228 | if (res == 0) { |
| 229 | u_char clickpad_type = (resp[0] & 0x10); |
| 230 | clickpad_type |= (resp[1] & 0x01); |
| 231 | |
| 232 | aprint_debug_dev(psc->sc_dev, "%s: Continued " |
| 233 | "Capabilities 0x%02x 0x%02x 0x%02x.\n" , __func__, |
| 234 | resp[0], resp[1], resp[2]); |
| 235 | switch (clickpad_type) { |
| 236 | case 0x10: |
| 237 | sc->flags |= SYN_FLAG_HAS_ONE_BUTTON_CLICKPAD; |
| 238 | break; |
| 239 | case 0x01: |
| 240 | sc->flags |= SYN_FLAG_HAS_TWO_BUTTON_CLICKPAD; |
| 241 | break; |
| 242 | default: |
| 243 | break; |
| 244 | } |
| 245 | } |
| 246 | } |
| 247 | } |
| 248 | |
| 249 | int |
| 250 | pms_synaptics_probe_init(void *vsc) |
| 251 | { |
| 252 | struct pms_softc *psc = vsc; |
| 253 | struct synaptics_softc *sc = &psc->u.synaptics; |
| 254 | u_char cmd[1], resp[3]; |
| 255 | int res, ver_minor, ver_major; |
| 256 | struct sysctllog *clog = NULL; |
| 257 | |
| 258 | res = pms_sliced_command(psc->sc_kbctag, psc->sc_kbcslot, |
| 259 | SYNAPTICS_IDENTIFY_TOUCHPAD); |
| 260 | cmd[0] = PMS_SEND_DEV_STATUS; |
| 261 | res |= pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, 1, 3, |
| 262 | resp, 0); |
| 263 | if (res) { |
| 264 | aprint_debug_dev(psc->sc_dev, |
| 265 | "synaptics_probe: Identify Touchpad error.\n" ); |
| 266 | /* |
| 267 | * Reset device in case the probe confused it. |
| 268 | */ |
| 269 | doreset: |
| 270 | cmd[0] = PMS_RESET; |
| 271 | (void) pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, |
| 272 | 1, 2, resp, 1); |
| 273 | return (res); |
| 274 | } |
| 275 | |
| 276 | if (resp[1] != SYNAPTICS_MAGIC_BYTE) { |
| 277 | aprint_debug_dev(psc->sc_dev, |
| 278 | "synaptics_probe: Not synaptics.\n" ); |
| 279 | res = 1; |
| 280 | goto doreset; |
| 281 | } |
| 282 | |
| 283 | sc->flags = 0; |
| 284 | |
| 285 | /* Check for minimum version and print a nice message. */ |
| 286 | ver_major = resp[2] & 0x0f; |
| 287 | ver_minor = resp[0]; |
| 288 | aprint_normal_dev(psc->sc_dev, "Synaptics touchpad version %d.%d\n" , |
| 289 | ver_major, ver_minor); |
| 290 | if (ver_major * 10 + ver_minor < SYNAPTICS_MIN_VERSION) { |
| 291 | /* No capability query support. */ |
| 292 | sc->caps = 0; |
| 293 | goto done; |
| 294 | } |
| 295 | |
| 296 | /* Query the hardware capabilities. */ |
| 297 | res = pms_sliced_command(psc->sc_kbctag, psc->sc_kbcslot, |
| 298 | SYNAPTICS_READ_CAPABILITIES); |
| 299 | cmd[0] = PMS_SEND_DEV_STATUS; |
| 300 | res |= pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, 1, 3, |
| 301 | resp, 0); |
| 302 | if (res) { |
| 303 | /* Hmm, failed to get capabilites. */ |
| 304 | aprint_error_dev(psc->sc_dev, |
| 305 | "synaptics_probe: Failed to query capabilities.\n" ); |
| 306 | goto doreset; |
| 307 | } |
| 308 | |
| 309 | sc->caps = (resp[0] << 8) | resp[2]; |
| 310 | |
| 311 | if (sc->caps & SYNAPTICS_CAP_MBUTTON) |
| 312 | sc->flags |= SYN_FLAG_HAS_MIDDLE_BUTTON; |
| 313 | |
| 314 | if (sc->caps & SYNAPTICS_CAP_4BUTTON) |
| 315 | sc->flags |= SYN_FLAG_HAS_BUTTONS_4_5; |
| 316 | |
| 317 | if (sc->caps & SYNAPTICS_CAP_EXTENDED) { |
| 318 | pms_synaptics_probe_extended(psc); |
| 319 | } |
| 320 | |
| 321 | if (sc->flags) { |
| 322 | const char comma[] = ", " ; |
| 323 | const char *sep = "" ; |
| 324 | aprint_normal_dev(psc->sc_dev, "" ); |
| 325 | if (sc->flags & SYN_FLAG_HAS_EXTENDED_WMODE) { |
| 326 | aprint_normal("%sExtended W mode" , sep); |
| 327 | sep = comma; |
| 328 | } |
| 329 | if (sc->flags & SYN_FLAG_HAS_PASSTHROUGH) { |
| 330 | aprint_normal("%sPassthrough" , sep); |
| 331 | sep = comma; |
| 332 | } |
| 333 | if (sc->flags & SYN_FLAG_HAS_MIDDLE_BUTTON) { |
| 334 | aprint_normal("%sMiddle button" , sep); |
| 335 | sep = comma; |
| 336 | } |
| 337 | if (sc->flags & SYN_FLAG_HAS_BUTTONS_4_5) { |
| 338 | aprint_normal("%sButtons 4/5" , sep); |
| 339 | sep = comma; |
| 340 | } |
| 341 | if (sc->flags & SYN_FLAG_HAS_UP_DOWN_BUTTONS) { |
| 342 | aprint_normal("%sUp/down buttons" , sep); |
| 343 | sep = comma; |
| 344 | } |
| 345 | if (sc->flags & SYN_FLAG_HAS_PALM_DETECT) { |
| 346 | aprint_normal("%sPalm detect" , sep); |
| 347 | sep = comma; |
| 348 | } |
| 349 | if (sc->flags & SYN_FLAG_HAS_ONE_BUTTON_CLICKPAD) { |
| 350 | aprint_normal("%sOne button click pad" , sep); |
| 351 | sep = comma; |
| 352 | } |
| 353 | if (sc->flags & SYN_FLAG_HAS_TWO_BUTTON_CLICKPAD) { |
| 354 | aprint_normal("%sTwo button click pad" , sep); |
| 355 | sep = comma; |
| 356 | } |
| 357 | if (sc->flags & SYN_FLAG_HAS_VERTICAL_SCROLL) { |
| 358 | aprint_normal("%sVertical scroll" , sep); |
| 359 | sep = comma; |
| 360 | } |
| 361 | if (sc->flags & SYN_FLAG_HAS_HORIZONTAL_SCROLL) { |
| 362 | aprint_normal("%sHorizontal scroll" , sep); |
| 363 | sep = comma; |
| 364 | } |
| 365 | if (sc->flags & SYN_FLAG_HAS_MULTI_FINGER_REPORT) { |
| 366 | aprint_normal("%sMulti-finger Report" , sep); |
| 367 | sep = comma; |
| 368 | } |
| 369 | if (sc->flags & SYN_FLAG_HAS_MULTI_FINGER) |
| 370 | aprint_normal("%sMulti-finger" , sep); |
| 371 | |
| 372 | aprint_normal("\n" ); |
| 373 | } |
| 374 | |
| 375 | done: |
| 376 | pms_sysctl_synaptics(&clog); |
| 377 | pckbport_set_inputhandler(psc->sc_kbctag, psc->sc_kbcslot, |
| 378 | pms_synaptics_input, psc, device_xname(psc->sc_dev)); |
| 379 | |
| 380 | return (0); |
| 381 | } |
| 382 | |
| 383 | void |
| 384 | pms_synaptics_enable(void *vsc) |
| 385 | { |
| 386 | struct pms_softc *psc = vsc; |
| 387 | struct synaptics_softc *sc = &psc->u.synaptics; |
| 388 | u_char cmd[2], resp[2]; |
| 389 | int res; |
| 390 | |
| 391 | if (sc->flags & SYN_FLAG_HAS_PASSTHROUGH) { |
| 392 | /* |
| 393 | * Extended capability probes can confuse the passthrough device; |
| 394 | * reset the touchpad now to cure that. |
| 395 | */ |
| 396 | cmd[0] = PMS_RESET; |
| 397 | res = pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, |
| 398 | 1, 2, resp, 1); |
| 399 | } |
| 400 | |
| 401 | /* |
| 402 | * Enable Absolute mode with W (width) reporting, and set |
| 403 | * the packet rate to maximum (80 packets per second). |
| 404 | */ |
| 405 | res = pms_sliced_command(psc->sc_kbctag, psc->sc_kbcslot, |
| 406 | SYNAPTICS_MODE_ABSOLUTE | SYNAPTICS_MODE_W | SYNAPTICS_MODE_RATE); |
| 407 | cmd[0] = PMS_SET_SAMPLE; |
| 408 | cmd[1] = SYNAPTICS_CMD_SET_MODE2; |
| 409 | res |= pckbport_enqueue_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, 2, 0, |
| 410 | 1, NULL); |
| 411 | sc->up_down = 0; |
| 412 | sc->prev_fingers = 0; |
| 413 | sc->gesture_start_x = sc->gesture_start_y = 0; |
| 414 | sc->gesture_start_packet = 0; |
| 415 | sc->gesture_tap_packet = 0; |
| 416 | sc->gesture_type = 0; |
| 417 | sc->gesture_buttons = 0; |
| 418 | sc->rem_x = sc->rem_y = 0; |
| 419 | sc->movement_history = 0; |
| 420 | if (res) { |
| 421 | aprint_error_dev(psc->sc_dev, |
| 422 | "synaptics_enable: Error enabling device.\n" ); |
| 423 | } |
| 424 | } |
| 425 | |
| 426 | void |
| 427 | pms_synaptics_resume(void *vsc) |
| 428 | { |
| 429 | struct pms_softc *psc = vsc; |
| 430 | unsigned char cmd[1],resp[2] = { 0,0 }; |
| 431 | int res; |
| 432 | |
| 433 | cmd[0] = PMS_RESET; |
| 434 | res = pckbport_poll_cmd(psc->sc_kbctag, psc->sc_kbcslot, cmd, 1, 2, |
| 435 | resp, 1); |
| 436 | aprint_debug_dev(psc->sc_dev, |
| 437 | "pms_synaptics_resume: reset on resume %d 0x%02x 0x%02x\n" , |
| 438 | res, resp[0], resp[1]); |
| 439 | } |
| 440 | |
| 441 | static void |
| 442 | pms_sysctl_synaptics(struct sysctllog **clog) |
| 443 | { |
| 444 | int rc, root_num; |
| 445 | const struct sysctlnode *node; |
| 446 | |
| 447 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 448 | CTLFLAG_PERMANENT, CTLTYPE_NODE, "synaptics" , |
| 449 | SYSCTL_DESCR("Synaptics touchpad controls" ), |
| 450 | NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) |
| 451 | goto err; |
| 452 | |
| 453 | root_num = node->sysctl_num; |
| 454 | |
| 455 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 456 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 457 | CTLTYPE_INT, "up_down_emulation" , |
| 458 | SYSCTL_DESCR("Middle button/Z-axis emulation with up/down buttons" ), |
| 459 | pms_sysctl_synaptics_verify, 0, |
| 460 | &synaptics_up_down_emul, |
| 461 | 0, CTL_HW, root_num, CTL_CREATE, |
| 462 | CTL_EOL)) != 0) |
| 463 | goto err; |
| 464 | |
| 465 | synaptics_up_down_emul_nodenum = node->sysctl_num; |
| 466 | |
| 467 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 468 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 469 | CTLTYPE_INT, "up_down_motion_delta" , |
| 470 | SYSCTL_DESCR("Up/down button Z-axis emulation rate" ), |
| 471 | pms_sysctl_synaptics_verify, 0, |
| 472 | &synaptics_up_down_motion_delta, |
| 473 | 0, CTL_HW, root_num, CTL_CREATE, |
| 474 | CTL_EOL)) != 0) |
| 475 | goto err; |
| 476 | |
| 477 | synaptics_up_down_motion_delta_nodenum = node->sysctl_num; |
| 478 | |
| 479 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 480 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 481 | CTLTYPE_INT, "gesture_move" , |
| 482 | SYSCTL_DESCR("Movement greater than this between taps cancels gesture" ), |
| 483 | pms_sysctl_synaptics_verify, 0, |
| 484 | &synaptics_gesture_move, |
| 485 | 0, CTL_HW, root_num, CTL_CREATE, |
| 486 | CTL_EOL)) != 0) |
| 487 | goto err; |
| 488 | |
| 489 | synaptics_gesture_move_nodenum = node->sysctl_num; |
| 490 | |
| 491 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 492 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 493 | CTLTYPE_INT, "gesture_length" , |
| 494 | SYSCTL_DESCR("Time period in which tap is recognised as a gesture" ), |
| 495 | pms_sysctl_synaptics_verify, 0, |
| 496 | &synaptics_gesture_length, |
| 497 | 0, CTL_HW, root_num, CTL_CREATE, |
| 498 | CTL_EOL)) != 0) |
| 499 | goto err; |
| 500 | |
| 501 | synaptics_gesture_length_nodenum = node->sysctl_num; |
| 502 | |
| 503 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 504 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 505 | CTLTYPE_INT, "edge_left" , |
| 506 | SYSCTL_DESCR("Define left edge of touchpad" ), |
| 507 | pms_sysctl_synaptics_verify, 0, |
| 508 | &synaptics_edge_left, |
| 509 | 0, CTL_HW, root_num, CTL_CREATE, |
| 510 | CTL_EOL)) != 0) |
| 511 | goto err; |
| 512 | |
| 513 | synaptics_edge_left_nodenum = node->sysctl_num; |
| 514 | |
| 515 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 516 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 517 | CTLTYPE_INT, "edge_right" , |
| 518 | SYSCTL_DESCR("Define right edge of touchpad" ), |
| 519 | pms_sysctl_synaptics_verify, 0, |
| 520 | &synaptics_edge_right, |
| 521 | 0, CTL_HW, root_num, CTL_CREATE, |
| 522 | CTL_EOL)) != 0) |
| 523 | goto err; |
| 524 | |
| 525 | synaptics_edge_right_nodenum = node->sysctl_num; |
| 526 | |
| 527 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 528 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 529 | CTLTYPE_INT, "edge_top" , |
| 530 | SYSCTL_DESCR("Define top edge of touchpad" ), |
| 531 | pms_sysctl_synaptics_verify, 0, |
| 532 | &synaptics_edge_top, |
| 533 | 0, CTL_HW, root_num, CTL_CREATE, |
| 534 | CTL_EOL)) != 0) |
| 535 | goto err; |
| 536 | |
| 537 | synaptics_edge_top_nodenum = node->sysctl_num; |
| 538 | |
| 539 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 540 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 541 | CTLTYPE_INT, "edge_bottom" , |
| 542 | SYSCTL_DESCR("Define bottom edge of touchpad" ), |
| 543 | pms_sysctl_synaptics_verify, 0, |
| 544 | &synaptics_edge_bottom, |
| 545 | 0, CTL_HW, root_num, CTL_CREATE, |
| 546 | CTL_EOL)) != 0) |
| 547 | goto err; |
| 548 | |
| 549 | synaptics_edge_bottom_nodenum = node->sysctl_num; |
| 550 | |
| 551 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 552 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 553 | CTLTYPE_INT, "edge_motion_delta" , |
| 554 | SYSCTL_DESCR("Define edge motion rate" ), |
| 555 | pms_sysctl_synaptics_verify, 0, |
| 556 | &synaptics_edge_motion_delta, |
| 557 | 0, CTL_HW, root_num, CTL_CREATE, |
| 558 | CTL_EOL)) != 0) |
| 559 | goto err; |
| 560 | |
| 561 | synaptics_edge_motion_delta_nodenum = node->sysctl_num; |
| 562 | |
| 563 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 564 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 565 | CTLTYPE_INT, "finger_high" , |
| 566 | SYSCTL_DESCR("Define finger applied pressure threshold" ), |
| 567 | pms_sysctl_synaptics_verify, 0, |
| 568 | &synaptics_finger_high, |
| 569 | 0, CTL_HW, root_num, CTL_CREATE, |
| 570 | CTL_EOL)) != 0) |
| 571 | goto err; |
| 572 | |
| 573 | synaptics_finger_high_nodenum = node->sysctl_num; |
| 574 | |
| 575 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 576 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 577 | CTLTYPE_INT, "finger_low" , |
| 578 | SYSCTL_DESCR("Define finger removed pressure threshold" ), |
| 579 | pms_sysctl_synaptics_verify, 0, |
| 580 | &synaptics_finger_low, |
| 581 | 0, CTL_HW, root_num, CTL_CREATE, |
| 582 | CTL_EOL)) != 0) |
| 583 | goto err; |
| 584 | |
| 585 | synaptics_finger_low_nodenum = node->sysctl_num; |
| 586 | |
| 587 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 588 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 589 | CTLTYPE_INT, "two_fingers_emulation" , |
| 590 | SYSCTL_DESCR("Map two fingers to middle button" ), |
| 591 | pms_sysctl_synaptics_verify, 0, |
| 592 | &synaptics_two_fingers_emul, |
| 593 | 0, CTL_HW, root_num, CTL_CREATE, |
| 594 | CTL_EOL)) != 0) |
| 595 | goto err; |
| 596 | |
| 597 | synaptics_two_fingers_emul_nodenum = node->sysctl_num; |
| 598 | |
| 599 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 600 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 601 | CTLTYPE_INT, "scale_x" , |
| 602 | SYSCTL_DESCR("Horizontal movement scale factor" ), |
| 603 | pms_sysctl_synaptics_verify, 0, |
| 604 | &synaptics_scale_x, |
| 605 | 0, CTL_HW, root_num, CTL_CREATE, |
| 606 | CTL_EOL)) != 0) |
| 607 | goto err; |
| 608 | |
| 609 | synaptics_scale_x_nodenum = node->sysctl_num; |
| 610 | |
| 611 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 612 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 613 | CTLTYPE_INT, "scale_y" , |
| 614 | SYSCTL_DESCR("Vertical movement scale factor" ), |
| 615 | pms_sysctl_synaptics_verify, 0, |
| 616 | &synaptics_scale_y, |
| 617 | 0, CTL_HW, root_num, CTL_CREATE, |
| 618 | CTL_EOL)) != 0) |
| 619 | goto err; |
| 620 | |
| 621 | synaptics_scale_y_nodenum = node->sysctl_num; |
| 622 | |
| 623 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 624 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 625 | CTLTYPE_INT, "max_speed_x" , |
| 626 | SYSCTL_DESCR("Horizontal movement maximum speed" ), |
| 627 | pms_sysctl_synaptics_verify, 0, |
| 628 | &synaptics_max_speed_x, |
| 629 | 0, CTL_HW, root_num, CTL_CREATE, |
| 630 | CTL_EOL)) != 0) |
| 631 | goto err; |
| 632 | |
| 633 | synaptics_max_speed_x_nodenum = node->sysctl_num; |
| 634 | |
| 635 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 636 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 637 | CTLTYPE_INT, "max_speed_y" , |
| 638 | SYSCTL_DESCR("Vertical movement maximum speed" ), |
| 639 | pms_sysctl_synaptics_verify, 0, |
| 640 | &synaptics_max_speed_y, |
| 641 | 0, CTL_HW, root_num, CTL_CREATE, |
| 642 | CTL_EOL)) != 0) |
| 643 | goto err; |
| 644 | |
| 645 | synaptics_max_speed_y_nodenum = node->sysctl_num; |
| 646 | |
| 647 | if ((rc = sysctl_createv(clog, 0, NULL, &node, |
| 648 | CTLFLAG_PERMANENT | CTLFLAG_READWRITE, |
| 649 | CTLTYPE_INT, "movement_threshold" , |
| 650 | SYSCTL_DESCR("Minimum reported movement threshold" ), |
| 651 | pms_sysctl_synaptics_verify, 0, |
| 652 | &synaptics_movement_threshold, |
| 653 | 0, CTL_HW, root_num, CTL_CREATE, |
| 654 | CTL_EOL)) != 0) |
| 655 | goto err; |
| 656 | |
| 657 | synaptics_movement_threshold_nodenum = node->sysctl_num; |
| 658 | return; |
| 659 | |
| 660 | err: |
| 661 | aprint_error("%s: sysctl_createv failed (rc = %d)\n" , __func__, rc); |
| 662 | } |
| 663 | |
| 664 | static int |
| 665 | pms_sysctl_synaptics_verify(SYSCTLFN_ARGS) |
| 666 | { |
| 667 | int error, t; |
| 668 | struct sysctlnode node; |
| 669 | |
| 670 | node = *rnode; |
| 671 | t = *(int *)rnode->sysctl_data; |
| 672 | node.sysctl_data = &t; |
| 673 | error = sysctl_lookup(SYSCTLFN_CALL(&node)); |
| 674 | if (error || newp == NULL) |
| 675 | return error; |
| 676 | |
| 677 | /* Sanity check the params. */ |
| 678 | if (node.sysctl_num == synaptics_up_down_emul_nodenum || |
| 679 | node.sysctl_num == synaptics_two_fingers_emul_nodenum) { |
| 680 | if (t < 0 || t > 2) |
| 681 | return (EINVAL); |
| 682 | } else |
| 683 | if (node.sysctl_num == synaptics_gesture_length_nodenum || |
| 684 | node.sysctl_num == synaptics_edge_motion_delta_nodenum || |
| 685 | node.sysctl_num == synaptics_up_down_motion_delta_nodenum) { |
| 686 | if (t < 0) |
| 687 | return (EINVAL); |
| 688 | } else |
| 689 | if (node.sysctl_num == synaptics_edge_left_nodenum || |
| 690 | node.sysctl_num == synaptics_edge_bottom_nodenum) { |
| 691 | if (t < 0 || t > (SYNAPTICS_EDGE_MAX / 2)) |
| 692 | return (EINVAL); |
| 693 | } else |
| 694 | if (node.sysctl_num == synaptics_edge_right_nodenum || |
| 695 | node.sysctl_num == synaptics_edge_top_nodenum) { |
| 696 | if (t < (SYNAPTICS_EDGE_MAX / 2)) |
| 697 | return (EINVAL); |
| 698 | } else |
| 699 | if (node.sysctl_num == synaptics_scale_x_nodenum || |
| 700 | node.sysctl_num == synaptics_scale_y_nodenum) { |
| 701 | if (t < 1 || t > (SYNAPTICS_EDGE_MAX / 4)) |
| 702 | return (EINVAL); |
| 703 | } else |
| 704 | if (node.sysctl_num == synaptics_finger_high_nodenum) { |
| 705 | if (t < 0 || t > SYNAPTICS_FINGER_PALM || |
| 706 | t < synaptics_finger_low) |
| 707 | return (EINVAL); |
| 708 | } else |
| 709 | if (node.sysctl_num == synaptics_finger_low_nodenum) { |
| 710 | if (t < 0 || t > SYNAPTICS_FINGER_PALM || |
| 711 | t > synaptics_finger_high) |
| 712 | return (EINVAL); |
| 713 | } else |
| 714 | if (node.sysctl_num == synaptics_gesture_move_nodenum || |
| 715 | node.sysctl_num == synaptics_movement_threshold_nodenum) { |
| 716 | if (t < 0 || t > (SYNAPTICS_EDGE_MAX / 4)) |
| 717 | return (EINVAL); |
| 718 | } else |
| 719 | return (EINVAL); |
| 720 | |
| 721 | *(int *)rnode->sysctl_data = t; |
| 722 | |
| 723 | return (0); |
| 724 | } |
| 725 | |
| 726 | /* Masks for the first byte of a packet */ |
| 727 | #define PMS_LBUTMASK 0x01 |
| 728 | #define PMS_RBUTMASK 0x02 |
| 729 | #define PMS_MBUTMASK 0x04 |
| 730 | |
| 731 | static void |
| 732 | pms_synaptics_parse(struct pms_softc *psc) |
| 733 | { |
| 734 | struct synaptics_softc *sc = &psc->u.synaptics; |
| 735 | struct synaptics_packet sp; |
| 736 | |
| 737 | memset(&sp, 0, sizeof(sp)); |
| 738 | |
| 739 | /* Absolute X/Y coordinates of finger */ |
| 740 | sp.sp_x = psc->packet[4] + ((psc->packet[1] & 0x0f) << 8) + |
| 741 | ((psc->packet[3] & 0x10) << 8); |
| 742 | sp.sp_y = psc->packet[5] + ((psc->packet[1] & 0xf0) << 4) + |
| 743 | ((psc->packet[3] & 0x20) << 7); |
| 744 | |
| 745 | /* Pressure */ |
| 746 | sp.sp_z = psc->packet[2]; |
| 747 | |
| 748 | /* Width of finger */ |
| 749 | sp.sp_w = ((psc->packet[0] & 0x30) >> 2) + |
| 750 | ((psc->packet[0] & 0x04) >> 1) + |
| 751 | ((psc->packet[3] & 0x04) >> 2); |
| 752 | |
| 753 | /* Left/Right button handling. */ |
| 754 | sp.sp_left = psc->packet[0] & PMS_LBUTMASK; |
| 755 | sp.sp_right = psc->packet[0] & PMS_RBUTMASK; |
| 756 | |
| 757 | /* Up/Down buttons. */ |
| 758 | if (sc->flags & SYN_FLAG_HAS_BUTTONS_4_5) { |
| 759 | /* Old up/down buttons. */ |
| 760 | sp.sp_up = sp.sp_left ^ |
| 761 | (psc->packet[3] & PMS_LBUTMASK); |
| 762 | sp.sp_down = sp.sp_right ^ |
| 763 | (psc->packet[3] & PMS_RBUTMASK); |
| 764 | } else |
| 765 | if (sc->flags & SYN_FLAG_HAS_UP_DOWN_BUTTONS && |
| 766 | ((psc->packet[0] & PMS_RBUTMASK) ^ |
| 767 | (psc->packet[3] & PMS_RBUTMASK))) { |
| 768 | /* New up/down button. */ |
| 769 | sp.sp_up = psc->packet[4] & SYN_1BUTMASK; |
| 770 | sp.sp_down = psc->packet[5] & SYN_2BUTMASK; |
| 771 | } else { |
| 772 | sp.sp_up = 0; |
| 773 | sp.sp_down = 0; |
| 774 | } |
| 775 | |
| 776 | if(sc->flags & SYN_FLAG_HAS_ONE_BUTTON_CLICKPAD) { |
| 777 | /* This is not correctly specified. Read this button press |
| 778 | * from L/U bit. |
| 779 | */ |
| 780 | sp.sp_left = ((psc->packet[0] ^ psc->packet[3]) & 0x01) ? 1 : 0; |
| 781 | } else |
| 782 | /* Middle button. */ |
| 783 | if (sc->flags & SYN_FLAG_HAS_MIDDLE_BUTTON) { |
| 784 | /* Old style Middle Button. */ |
| 785 | sp.sp_middle = (psc->packet[0] & PMS_LBUTMASK) ^ |
| 786 | (psc->packet[3] & PMS_LBUTMASK); |
| 787 | } else |
| 788 | if (synaptics_up_down_emul == 1) { |
| 789 | /* Do middle button emulation using up/down buttons */ |
| 790 | sp.sp_middle = sp.sp_up | sp.sp_down; |
| 791 | sp.sp_up = sp.sp_down = 0; |
| 792 | } else |
| 793 | sp.sp_middle = 0; |
| 794 | |
| 795 | pms_synaptics_process_packet(psc, &sp); |
| 796 | } |
| 797 | |
| 798 | static void |
| 799 | pms_synaptics_passthrough(struct pms_softc *psc) |
| 800 | { |
| 801 | int dx, dy, dz; |
| 802 | int buttons, changed; |
| 803 | int s; |
| 804 | |
| 805 | buttons = ((psc->packet[1] & PMS_LBUTMASK) ? 0x20 : 0) | |
| 806 | ((psc->packet[1] & PMS_MBUTMASK) ? 0x40 : 0) | |
| 807 | ((psc->packet[1] & PMS_RBUTMASK) ? 0x80 : 0); |
| 808 | |
| 809 | dx = psc->packet[4]; |
| 810 | if (dx >= 128) |
| 811 | dx -= 256; |
| 812 | if (dx == -128) |
| 813 | dx = -127; |
| 814 | |
| 815 | dy = psc->packet[5]; |
| 816 | if (dy >= 128) |
| 817 | dy -= 256; |
| 818 | if (dy == -128) |
| 819 | dy = -127; |
| 820 | |
| 821 | dz = 0; |
| 822 | |
| 823 | changed = buttons ^ (psc->buttons & 0xe0); |
| 824 | psc->buttons ^= changed; |
| 825 | |
| 826 | if (dx || dy || dz || changed) { |
| 827 | buttons = (psc->buttons & 0x1f) | ((psc->buttons >> 5) & 0x7); |
| 828 | s = spltty(); |
| 829 | wsmouse_input(psc->sc_wsmousedev, |
| 830 | buttons, dx, dy, dz, 0, |
| 831 | WSMOUSE_INPUT_DELTA); |
| 832 | splx(s); |
| 833 | } |
| 834 | } |
| 835 | |
| 836 | static void |
| 837 | pms_synaptics_input(void *vsc, int data) |
| 838 | { |
| 839 | struct pms_softc *psc = vsc; |
| 840 | struct timeval diff; |
| 841 | |
| 842 | if (!psc->sc_enabled) { |
| 843 | /* Interrupts are not expected. Discard the byte. */ |
| 844 | return; |
| 845 | } |
| 846 | |
| 847 | getmicrouptime(&psc->current); |
| 848 | |
| 849 | if (psc->inputstate > 0) { |
| 850 | timersub(&psc->current, &psc->last, &diff); |
| 851 | if (diff.tv_sec > 0 || diff.tv_usec >= 40000) { |
| 852 | aprint_debug_dev(psc->sc_dev, |
| 853 | "pms_input: unusual delay (%ld.%06ld s), " |
| 854 | "scheduling reset\n" , |
| 855 | (long)diff.tv_sec, (long)diff.tv_usec); |
| 856 | psc->inputstate = 0; |
| 857 | psc->sc_enabled = 0; |
| 858 | wakeup(&psc->sc_enabled); |
| 859 | return; |
| 860 | } |
| 861 | } |
| 862 | psc->last = psc->current; |
| 863 | |
| 864 | switch (psc->inputstate) { |
| 865 | case 0: |
| 866 | if ((data & 0xc8) != 0x80) { |
| 867 | aprint_debug_dev(psc->sc_dev, |
| 868 | "pms_input: 0x%02x out of sync\n" , data); |
| 869 | return; /* not in sync yet, discard input */ |
| 870 | } |
| 871 | /*FALLTHROUGH*/ |
| 872 | |
| 873 | case 3: |
| 874 | if ((data & 8) == 8) { |
| 875 | aprint_debug_dev(psc->sc_dev, |
| 876 | "pms_input: dropped in relative mode, reset\n" ); |
| 877 | psc->inputstate = 0; |
| 878 | psc->sc_enabled = 0; |
| 879 | wakeup(&psc->sc_enabled); |
| 880 | return; |
| 881 | } |
| 882 | } |
| 883 | |
| 884 | psc->packet[psc->inputstate++] = data & 0xff; |
| 885 | if (psc->inputstate == 6) { |
| 886 | /* |
| 887 | * We have a complete packet. |
| 888 | * Extract the pertinent details. |
| 889 | */ |
| 890 | psc->inputstate = 0; |
| 891 | |
| 892 | if ((psc->packet[0] & 0xfc) == 0x84 && |
| 893 | (psc->packet[3] & 0xcc) == 0xc4) { |
| 894 | /* W = SYNAPTICS_WIDTH_PASSTHROUGH, PS/2 passthrough */ |
| 895 | pms_synaptics_passthrough(psc); |
| 896 | } else { |
| 897 | pms_synaptics_parse(psc); |
| 898 | } |
| 899 | } |
| 900 | } |
| 901 | |
| 902 | static inline int |
| 903 | synaptics_finger_detect(struct synaptics_softc *sc, struct synaptics_packet *sp, |
| 904 | int *palmp) |
| 905 | { |
| 906 | int fingers; |
| 907 | |
| 908 | /* Assume no palm */ |
| 909 | *palmp = 0; |
| 910 | |
| 911 | /* |
| 912 | * Apply some hysteresis when checking for a finger. |
| 913 | * When the finger is first applied, we ignore it until the |
| 914 | * pressure exceeds the 'high' threshold. The finger is considered |
| 915 | * removed only when pressure falls beneath the 'low' threshold. |
| 916 | */ |
| 917 | if ((sc->prev_fingers == 0 && sp->sp_z > synaptics_finger_high) || |
| 918 | (sc->prev_fingers != 0 && sp->sp_z > synaptics_finger_low)) |
| 919 | fingers = 1; |
| 920 | else |
| 921 | fingers = 0; |
| 922 | |
| 923 | /* |
| 924 | * If the pad can't do palm detection, skip the rest. |
| 925 | */ |
| 926 | if (fingers == 0 || (sc->flags & SYN_FLAG_HAS_PALM_DETECT) == 0) |
| 927 | return (fingers); |
| 928 | |
| 929 | /* |
| 930 | * Palm detection |
| 931 | */ |
| 932 | if (sp->sp_z > SYNAPTICS_FINGER_FLAT && |
| 933 | sp->sp_w >= SYNAPTICS_WIDTH_PALM_MIN) |
| 934 | *palmp = 1; |
| 935 | |
| 936 | if (sc->prev_fingers == 0 && |
| 937 | (sp->sp_z > SYNAPTICS_FINGER_FLAT || |
| 938 | sp->sp_w >= SYNAPTICS_WIDTH_PALM_MIN)) { |
| 939 | /* |
| 940 | * Contact area or pressure is too great to be a finger. |
| 941 | * Just ignore it for now. |
| 942 | */ |
| 943 | return (0); |
| 944 | } |
| 945 | |
| 946 | /* |
| 947 | * Detect 2 and 3 fingers if supported, but only if multiple |
| 948 | * fingers appear within the tap gesture time period. |
| 949 | */ |
| 950 | if (sc->flags & SYN_FLAG_HAS_MULTI_FINGER && |
| 951 | SYN_TIME(sc, sc->gesture_start_packet) < synaptics_gesture_length) { |
| 952 | switch (sp->sp_w) { |
| 953 | case SYNAPTICS_WIDTH_TWO_FINGERS: |
| 954 | fingers = 2; |
| 955 | break; |
| 956 | |
| 957 | case SYNAPTICS_WIDTH_THREE_OR_MORE: |
| 958 | fingers = 3; |
| 959 | break; |
| 960 | |
| 961 | case SYNAPTICS_WIDTH_PEN: |
| 962 | fingers = 1; |
| 963 | break; |
| 964 | |
| 965 | default: |
| 966 | /* |
| 967 | * The width value can report spurious single-finger |
| 968 | * events after a multi-finger event. |
| 969 | */ |
| 970 | if (sc->prev_fingers > 1) |
| 971 | fingers = sc->prev_fingers; |
| 972 | else |
| 973 | fingers = 1; |
| 974 | break; |
| 975 | } |
| 976 | } |
| 977 | |
| 978 | return (fingers); |
| 979 | } |
| 980 | |
| 981 | static inline void |
| 982 | synaptics_gesture_detect(struct synaptics_softc *sc, |
| 983 | struct synaptics_packet *sp, int fingers) |
| 984 | { |
| 985 | int gesture_len, gesture_buttons; |
| 986 | int set_buttons; |
| 987 | |
| 988 | gesture_len = SYN_TIME(sc, sc->gesture_start_packet); |
| 989 | gesture_buttons = sc->gesture_buttons; |
| 990 | |
| 991 | if (fingers > 0 && (fingers == sc->prev_fingers)) { |
| 992 | /* Finger is still present */ |
| 993 | sc->gesture_move_x = abs(sc->gesture_start_x - sp->sp_x); |
| 994 | sc->gesture_move_y = abs(sc->gesture_start_y - sp->sp_y); |
| 995 | } else |
| 996 | if (fingers && sc->prev_fingers == 0) { |
| 997 | /* |
| 998 | * Finger was just applied. |
| 999 | * If the previous gesture was a single-click, set things |
| 1000 | * up to deal with a possible drag or double-click gesture. |
| 1001 | * Basically, if the finger is removed again within |
| 1002 | * 'synaptics_gesture_length' packets, this is treated |
| 1003 | * as a double-click. Otherwise we will emulate holding |
| 1004 | * the left button down whilst dragging the mouse. |
| 1005 | */ |
| 1006 | if (SYN_IS_SINGLE_TAP(sc->gesture_type)) |
| 1007 | sc->gesture_type |= SYN_GESTURE_DRAG; |
| 1008 | |
| 1009 | sc->gesture_start_x = abs(sp->sp_x); |
| 1010 | sc->gesture_start_y = abs(sp->sp_y); |
| 1011 | sc->gesture_move_x = 0; |
| 1012 | sc->gesture_move_y = 0; |
| 1013 | sc->gesture_start_packet = sc->total_packets; |
| 1014 | |
| 1015 | #ifdef DIAGNOSTIC |
| 1016 | aprint_debug("Finger applied: gesture_start_x: %d gesture_start_y: %d\n" , |
| 1017 | sc->gesture_start_x, sc->gesture_start_y); |
| 1018 | #endif |
| 1019 | } else |
| 1020 | if (fingers == 0 && sc->prev_fingers != 0) { |
| 1021 | /* |
| 1022 | * Finger was just removed. |
| 1023 | * Check if the contact time and finger movement were |
| 1024 | * small enough to qualify as a gesture. |
| 1025 | * Ignore finger movement if multiple fingers were |
| 1026 | * detected (the pad may report coordinates for any |
| 1027 | * of the fingers). |
| 1028 | */ |
| 1029 | |
| 1030 | #ifdef DIAGNOSTIC |
| 1031 | aprint_debug("Finger removed: gesture_len: %d (%d)\n" , |
| 1032 | gesture_len, synaptics_gesture_length); |
| 1033 | aprint_debug("gesture_move_x: %d (%d) sp_x: %d\n" , |
| 1034 | sc->gesture_move_x, synaptics_gesture_move, abs(sp->sp_x)); |
| 1035 | aprint_debug("gesture_move_y: %d (%d) sp_y: %d\n" , |
| 1036 | sc->gesture_move_y, synaptics_gesture_move, abs(sp->sp_y)); |
| 1037 | #endif |
| 1038 | |
| 1039 | if (gesture_len < synaptics_gesture_length && |
| 1040 | ((sc->gesture_move_x < synaptics_gesture_move && |
| 1041 | sc->gesture_move_y < synaptics_gesture_move))) { |
| 1042 | /* |
| 1043 | * Looking good so far. |
| 1044 | */ |
| 1045 | if (SYN_IS_DRAG(sc->gesture_type)) { |
| 1046 | /* |
| 1047 | * Promote this gesture to double-click. |
| 1048 | */ |
| 1049 | sc->gesture_type |= SYN_GESTURE_DOUBLE; |
| 1050 | sc->gesture_type &= ~SYN_GESTURE_SINGLE; |
| 1051 | } else { |
| 1052 | /* |
| 1053 | * Single tap gesture. Set the tap length timer |
| 1054 | * and flag a single-click. |
| 1055 | */ |
| 1056 | sc->gesture_tap_packet = sc->total_packets; |
| 1057 | sc->gesture_type |= SYN_GESTURE_SINGLE; |
| 1058 | |
| 1059 | /* |
| 1060 | * The gesture can be modified depending on |
| 1061 | * the number of fingers detected. |
| 1062 | * |
| 1063 | * 1: Normal left button emulation. |
| 1064 | * 2: Either middle button or right button |
| 1065 | * depending on the value of the two_fingers |
| 1066 | * sysctl variable. |
| 1067 | * 3: Right button. |
| 1068 | */ |
| 1069 | switch (sc->prev_fingers) { |
| 1070 | case 2: |
| 1071 | if (synaptics_two_fingers_emul == 1) |
| 1072 | gesture_buttons |= PMS_RBUTMASK; |
| 1073 | else |
| 1074 | if (synaptics_two_fingers_emul == 2) |
| 1075 | gesture_buttons |= PMS_MBUTMASK; |
| 1076 | break; |
| 1077 | case 3: |
| 1078 | gesture_buttons |= PMS_RBUTMASK; |
| 1079 | break; |
| 1080 | default: |
| 1081 | gesture_buttons |= PMS_LBUTMASK; |
| 1082 | break; |
| 1083 | } |
| 1084 | } |
| 1085 | } |
| 1086 | |
| 1087 | /* |
| 1088 | * Always clear drag state when the finger is removed. |
| 1089 | */ |
| 1090 | sc->gesture_type &= ~SYN_GESTURE_DRAG; |
| 1091 | } |
| 1092 | |
| 1093 | if (sc->gesture_type == 0) { |
| 1094 | /* |
| 1095 | * There is no gesture in progress. |
| 1096 | * Clear emulated button state. |
| 1097 | */ |
| 1098 | sc->gesture_buttons = 0; |
| 1099 | return; |
| 1100 | } |
| 1101 | |
| 1102 | /* |
| 1103 | * A gesture is in progress. |
| 1104 | */ |
| 1105 | set_buttons = 0; |
| 1106 | |
| 1107 | if (SYN_IS_SINGLE_TAP(sc->gesture_type)) { |
| 1108 | /* |
| 1109 | * Single-click. |
| 1110 | * Activate the relevant button(s) until the |
| 1111 | * gesture tap timer has expired. |
| 1112 | */ |
| 1113 | if (SYN_TIME(sc, sc->gesture_tap_packet) < |
| 1114 | synaptics_gesture_length) |
| 1115 | set_buttons = 1; |
| 1116 | else |
| 1117 | sc->gesture_type &= ~SYN_GESTURE_SINGLE; |
| 1118 | } else |
| 1119 | if (SYN_IS_DOUBLE_TAP(sc->gesture_type) && sc->prev_fingers == 0) { |
| 1120 | /* |
| 1121 | * Double-click. |
| 1122 | * Activate the relevant button(s) once. |
| 1123 | */ |
| 1124 | set_buttons = 1; |
| 1125 | sc->gesture_type &= ~SYN_GESTURE_DOUBLE; |
| 1126 | } |
| 1127 | |
| 1128 | if (set_buttons || SYN_IS_DRAG(sc->gesture_type)) { |
| 1129 | /* |
| 1130 | * Single-click and drag. |
| 1131 | * Maintain button state until the finger is removed. |
| 1132 | */ |
| 1133 | sp->sp_left |= gesture_buttons & PMS_LBUTMASK; |
| 1134 | sp->sp_right |= gesture_buttons & PMS_RBUTMASK; |
| 1135 | sp->sp_middle |= gesture_buttons & PMS_MBUTMASK; |
| 1136 | } |
| 1137 | |
| 1138 | sc->gesture_buttons = gesture_buttons; |
| 1139 | } |
| 1140 | |
| 1141 | static inline int |
| 1142 | synaptics_filter_policy(struct synaptics_softc *sc, int *history, int value) |
| 1143 | { |
| 1144 | int a, b, rv, count; |
| 1145 | |
| 1146 | count = sc->total_packets; |
| 1147 | |
| 1148 | /* |
| 1149 | * Once we've accumulated at least SYN_HIST_SIZE values, combine |
| 1150 | * each new value with the previous two and return the average. |
| 1151 | * |
| 1152 | * This is necessary when the touchpad is operating in 80 packets |
| 1153 | * per second mode, as it performs little internal filtering on |
| 1154 | * reported values. |
| 1155 | * |
| 1156 | * Using a rolling average helps to filter out jitter caused by |
| 1157 | * tiny finger movements. |
| 1158 | */ |
| 1159 | if (sc->movement_history >= SYN_HIST_SIZE) { |
| 1160 | a = (history[(count + 0) % SYN_HIST_SIZE] + |
| 1161 | history[(count + 1) % SYN_HIST_SIZE]) / 2; |
| 1162 | |
| 1163 | b = (value + history[(count + 0) % SYN_HIST_SIZE]) / 2; |
| 1164 | |
| 1165 | rv = b - a; |
| 1166 | |
| 1167 | /* |
| 1168 | * Don't report the movement if it's below a certain |
| 1169 | * threshold. |
| 1170 | */ |
| 1171 | if (abs(rv) < synaptics_movement_threshold) |
| 1172 | rv = 0; |
| 1173 | } else |
| 1174 | rv = 0; |
| 1175 | |
| 1176 | /* |
| 1177 | * Add the new value to the history buffer. |
| 1178 | */ |
| 1179 | history[(count + 1) % SYN_HIST_SIZE] = value; |
| 1180 | |
| 1181 | return (rv); |
| 1182 | } |
| 1183 | |
| 1184 | /* Edge detection */ |
| 1185 | #define SYN_EDGE_TOP 1 |
| 1186 | #define SYN_EDGE_BOTTOM 2 |
| 1187 | #define SYN_EDGE_LEFT 4 |
| 1188 | #define SYN_EDGE_RIGHT 8 |
| 1189 | |
| 1190 | static inline int |
| 1191 | synaptics_check_edge(int x, int y) |
| 1192 | { |
| 1193 | int rv = 0; |
| 1194 | |
| 1195 | if (x < synaptics_edge_left) |
| 1196 | rv |= SYN_EDGE_LEFT; |
| 1197 | else |
| 1198 | if (x > synaptics_edge_right) |
| 1199 | rv |= SYN_EDGE_RIGHT; |
| 1200 | |
| 1201 | if (y < synaptics_edge_bottom) |
| 1202 | rv |= SYN_EDGE_BOTTOM; |
| 1203 | else |
| 1204 | if (y > synaptics_edge_top) |
| 1205 | rv |= SYN_EDGE_TOP; |
| 1206 | |
| 1207 | return (rv); |
| 1208 | } |
| 1209 | |
| 1210 | static inline int |
| 1211 | synaptics_edge_motion(struct synaptics_softc *sc, int delta, int dir) |
| 1212 | { |
| 1213 | |
| 1214 | /* |
| 1215 | * When edge motion is enabled, synaptics_edge_motion_delta is |
| 1216 | * combined with the current delta, together with the direction |
| 1217 | * in which to simulate the motion. The result is added to |
| 1218 | * the delta derived from finger movement. This provides a smooth |
| 1219 | * transition from finger movement to edge motion. |
| 1220 | */ |
| 1221 | delta = synaptics_edge_motion_delta + (dir * delta); |
| 1222 | if (delta < 0) |
| 1223 | return (0); |
| 1224 | if (delta > synaptics_edge_motion_delta) |
| 1225 | return (synaptics_edge_motion_delta); |
| 1226 | return (delta); |
| 1227 | } |
| 1228 | |
| 1229 | static inline int |
| 1230 | synaptics_scale(int delta, int scale, int *remp) |
| 1231 | { |
| 1232 | int rv; |
| 1233 | |
| 1234 | /* |
| 1235 | * Scale the raw delta in Synaptics coordinates (0-6143) into |
| 1236 | * something more reasonable by dividing the raw delta by a |
| 1237 | * scale factor. Any remainder from the previous scale result |
| 1238 | * is added to the current delta before scaling. |
| 1239 | * This prevents loss of resolution for very small/slow |
| 1240 | * movements of the finger. |
| 1241 | */ |
| 1242 | delta += *remp; |
| 1243 | rv = delta / scale; |
| 1244 | *remp = delta % scale; |
| 1245 | |
| 1246 | return (rv); |
| 1247 | } |
| 1248 | |
| 1249 | static inline void |
| 1250 | synaptics_movement(struct synaptics_softc *sc, struct synaptics_packet *sp, |
| 1251 | int *dxp, int *dyp) |
| 1252 | { |
| 1253 | int dx, dy, edge; |
| 1254 | |
| 1255 | /* |
| 1256 | * Compute the next values of dx and dy |
| 1257 | */ |
| 1258 | dx = synaptics_filter_policy(sc, sc->history_x, sp->sp_x); |
| 1259 | dy = synaptics_filter_policy(sc, sc->history_y, sp->sp_y); |
| 1260 | |
| 1261 | /* |
| 1262 | * If we're dealing with a drag gesture, and the finger moves to |
| 1263 | * the edge of the touchpad, apply edge motion emulation if it |
| 1264 | * is enabled. |
| 1265 | */ |
| 1266 | if (synaptics_edge_motion_delta && SYN_IS_DRAG(sc->gesture_type)) { |
| 1267 | edge = synaptics_check_edge(sp->sp_x, sp->sp_y); |
| 1268 | |
| 1269 | if (edge & SYN_EDGE_LEFT) |
| 1270 | dx -= synaptics_edge_motion(sc, dx, 1); |
| 1271 | if (edge & SYN_EDGE_RIGHT) |
| 1272 | dx += synaptics_edge_motion(sc, dx, -1); |
| 1273 | if (edge & SYN_EDGE_BOTTOM) |
| 1274 | dy -= synaptics_edge_motion(sc, dy, 1); |
| 1275 | if (edge & SYN_EDGE_TOP) |
| 1276 | dy += synaptics_edge_motion(sc, dy, -1); |
| 1277 | } |
| 1278 | |
| 1279 | /* |
| 1280 | * Apply scaling to both deltas |
| 1281 | */ |
| 1282 | dx = synaptics_scale(dx, synaptics_scale_x, &sc->rem_x); |
| 1283 | dy = synaptics_scale(dy, synaptics_scale_y, &sc->rem_y); |
| 1284 | |
| 1285 | /* |
| 1286 | * Clamp deltas to specified maximums. |
| 1287 | */ |
| 1288 | if (dx > synaptics_max_speed_x) |
| 1289 | dx = synaptics_max_speed_x; |
| 1290 | if (dy > synaptics_max_speed_y) |
| 1291 | dy = synaptics_max_speed_y; |
| 1292 | |
| 1293 | *dxp = dx; |
| 1294 | *dyp = dy; |
| 1295 | |
| 1296 | sc->movement_history++; |
| 1297 | } |
| 1298 | |
| 1299 | static void |
| 1300 | pms_synaptics_process_packet(struct pms_softc *psc, struct synaptics_packet *sp) |
| 1301 | { |
| 1302 | struct synaptics_softc *sc = &psc->u.synaptics; |
| 1303 | int dx, dy, dz; |
| 1304 | int fingers, palm, buttons, changed; |
| 1305 | int s; |
| 1306 | |
| 1307 | /* |
| 1308 | * Do Z-axis emulation using up/down buttons if required. |
| 1309 | * Note that the pad will send a one second burst of packets |
| 1310 | * when an up/down button is pressed and held. At the moment |
| 1311 | * we don't deal with auto-repeat, so convert the burst into |
| 1312 | * a one-shot. |
| 1313 | */ |
| 1314 | dz = 0; |
| 1315 | if (synaptics_up_down_emul == 2) { |
| 1316 | if (sc->up_down == 0) { |
| 1317 | if (sp->sp_up && sp->sp_down) { |
| 1318 | /* |
| 1319 | * Most up/down buttons will be actuated using |
| 1320 | * a rocker switch, so we should never see |
| 1321 | * them both simultaneously. But just in case, |
| 1322 | * treat this situation as a middle button |
| 1323 | * event. |
| 1324 | */ |
| 1325 | sp->sp_middle = 1; |
| 1326 | } else |
| 1327 | if (sp->sp_up) |
| 1328 | dz = -synaptics_up_down_motion_delta; |
| 1329 | else |
| 1330 | if (sp->sp_down) |
| 1331 | dz = synaptics_up_down_motion_delta; |
| 1332 | } |
| 1333 | |
| 1334 | sc->up_down = sp->sp_up | sp->sp_down; |
| 1335 | sp->sp_up = sp->sp_down = 0; |
| 1336 | } |
| 1337 | |
| 1338 | /* |
| 1339 | * Determine whether or not a finger is on the pad. |
| 1340 | * On some pads, this will return the number of fingers |
| 1341 | * detected. |
| 1342 | */ |
| 1343 | fingers = synaptics_finger_detect(sc, sp, &palm); |
| 1344 | |
| 1345 | /* |
| 1346 | * Do gesture processing only if we didn't detect a palm. |
| 1347 | */ |
| 1348 | if (palm == 0) |
| 1349 | synaptics_gesture_detect(sc, sp, fingers); |
| 1350 | else |
| 1351 | sc->gesture_type = sc->gesture_buttons = 0; |
| 1352 | |
| 1353 | /* |
| 1354 | * Determine what buttons to report |
| 1355 | */ |
| 1356 | buttons = (sp->sp_left ? 0x1 : 0) | |
| 1357 | (sp->sp_middle ? 0x2 : 0) | |
| 1358 | (sp->sp_right ? 0x4 : 0) | |
| 1359 | (sp->sp_up ? 0x8 : 0) | |
| 1360 | (sp->sp_down ? 0x10 : 0); |
| 1361 | changed = buttons ^ (psc->buttons & 0x1f); |
| 1362 | psc->buttons ^= changed; |
| 1363 | |
| 1364 | sc->prev_fingers = fingers; |
| 1365 | sc->total_packets++; |
| 1366 | |
| 1367 | /* |
| 1368 | * Do movement processing IFF we have a single finger and no palm. |
| 1369 | */ |
| 1370 | if (fingers == 1 && palm == 0) |
| 1371 | synaptics_movement(sc, sp, &dx, &dy); |
| 1372 | else { |
| 1373 | /* |
| 1374 | * No valid finger. Therefore no movement. |
| 1375 | */ |
| 1376 | sc->movement_history = 0; |
| 1377 | sc->rem_x = sc->rem_y = 0; |
| 1378 | dx = dy = 0; |
| 1379 | } |
| 1380 | |
| 1381 | /* |
| 1382 | * Pass the final results up to wsmouse_input() if necessary. |
| 1383 | */ |
| 1384 | if (dx || dy || dz || changed) { |
| 1385 | buttons = (psc->buttons & 0x1f) | ((psc->buttons >> 5) & 0x7); |
| 1386 | s = spltty(); |
| 1387 | wsmouse_input(psc->sc_wsmousedev, |
| 1388 | buttons, |
| 1389 | dx, dy, dz, 0, |
| 1390 | WSMOUSE_INPUT_DELTA); |
| 1391 | splx(s); |
| 1392 | } |
| 1393 | } |
| 1394 | |