2 * Synaptics TouchPad PS/2 mouse driver
4 * 2003 Dmitry Torokhov <dtor@mail.ru>
5 * Added support for pass-through port. Special thanks to Peter Berg Larsen
6 * for explaining various Synaptics quirks.
8 * 2003 Peter Osterlund <petero2@telia.com>
9 * Ported to 2.5 input device infrastructure.
11 * Copyright (C) 2001 Stefan Gmeiner <riddlebox@freesurf.ch>
12 * start merging tpconfig and gpm code to a xfree-input module
13 * adding some changes and extensions (ex. 3rd and 4th button)
15 * Copyright (c) 1997 C. Scott Ananian <cananian@alumni.priceton.edu>
16 * Copyright (c) 1998-2000 Bruce Kalk <kall@compass.com>
17 * code for the special synaptics commands (from the tpconfig-source)
19 * This program is free software; you can redistribute it and/or modify it
20 * under the terms of the GNU General Public License version 2 as published by
21 * the Free Software Foundation.
23 * Trademarks are the property of their respective owners.
26 #include <linux/module.h>
27 #include <linux/delay.h>
28 #include <linux/dmi.h>
29 #include <linux/input/mt.h>
30 #include <linux/serio.h>
31 #include <linux/libps2.h>
32 #include <linux/slab.h>
34 #include "synaptics.h"
37 * The x/y limits are taken from the Synaptics TouchPad interfacing Guide,
38 * section 2.3.2, which says that they should be valid regardless of the
39 * actual size of the sensor.
40 * Note that newer firmware allows querying device for maximum useable
47 #define XMIN_NOMINAL 1472
48 #define XMAX_NOMINAL 5472
49 #define YMIN_NOMINAL 1408
50 #define YMAX_NOMINAL 4448
52 /* Size in bits of absolute position values reported by the hardware */
53 #define ABS_POS_BITS 13
56 * These values should represent the absolute maximum value that will
57 * be reported for a positive position value. Some Synaptics firmware
58 * uses this value to indicate a finger near the edge of the touchpad
59 * whose precise position cannot be determined.
61 * At least one touchpad is known to report positions in excess of this
62 * value which are actually negative values truncated to the 13-bit
63 * reporting range. These values have never been observed to be lower
64 * than 8184 (i.e. -8), so we treat all values greater than 8176 as
65 * negative and any other value as positive.
67 #define X_MAX_POSITIVE 8176
68 #define Y_MAX_POSITIVE 8176
70 /*****************************************************************************
71 * Stuff we need even when we do not want native Synaptics support
72 ****************************************************************************/
75 * Set the synaptics touchpad mode byte by special commands
77 static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode)
79 unsigned char param[1];
81 if (psmouse_sliced_command(psmouse, mode))
83 param[0] = SYN_PS_SET_MODE2;
84 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE))
89 int synaptics_detect(struct psmouse *psmouse, bool set_properties)
91 struct ps2dev *ps2dev = &psmouse->ps2dev;
92 unsigned char param[4];
96 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
97 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
98 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
99 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
100 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
102 if (param[1] != 0x47)
105 if (set_properties) {
106 psmouse->vendor = "Synaptics";
107 psmouse->name = "TouchPad";
113 void synaptics_reset(struct psmouse *psmouse)
115 /* reset touchpad back to relative mode, gestures enabled */
116 synaptics_mode_cmd(psmouse, 0);
119 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS
121 static bool cr48_profile_sensor;
123 #define ANY_BOARD_ID 0
124 struct min_max_quirk {
125 const char * const *pnp_ids;
127 unsigned long int min, max;
129 int x_min, x_max, y_min, y_max;
132 static const struct min_max_quirk min_max_pnpid_table[] = {
134 (const char * const []){"LEN0033", NULL},
135 {ANY_BOARD_ID, ANY_BOARD_ID},
136 1024, 5052, 2258, 4832
139 (const char * const []){"LEN0042", NULL},
140 {ANY_BOARD_ID, ANY_BOARD_ID},
141 1232, 5710, 1156, 4696
144 (const char * const []){"LEN0034", "LEN0036", "LEN0037",
145 "LEN0039", "LEN2002", "LEN2004",
147 {ANY_BOARD_ID, 2961},
148 1024, 5112, 2024, 4832
151 (const char * const []){"LEN2001", NULL},
152 {ANY_BOARD_ID, ANY_BOARD_ID},
153 1024, 5022, 2508, 4832
156 (const char * const []){"LEN2006", NULL},
157 {ANY_BOARD_ID, ANY_BOARD_ID},
158 1264, 5675, 1171, 4688
163 /* This list has been kindly provided by Synaptics. */
164 static const char * const topbuttonpad_pnp_ids[] = {
174 "LEN0033", /* Helix */
175 "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */
176 "LEN0035", /* X240 */
177 "LEN0036", /* T440 */
178 "LEN0037", /* X1 Carbon 2nd */
180 "LEN0039", /* T440s */
182 "LEN0042", /* Yoga */
187 "LEN2001", /* Edge E431 */
188 "LEN2002", /* Edge E531 */
190 "LEN2004", /* L440 */
201 /* This list has been kindly provided by Synaptics. */
202 static const char * const forcepad_pnp_ids[] = {
208 /*****************************************************************************
209 * Synaptics communications functions
210 ****************************************************************************/
213 * Synaptics touchpads report the y coordinate from bottom to top, which is
214 * opposite from what userspace expects.
215 * This function is used to invert y before reporting.
217 static int synaptics_invert_y(int y)
219 return YMAX_NOMINAL + YMIN_NOMINAL - y;
223 * Send a command to the synpatics touchpad by special commands
225 static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param)
227 if (psmouse_sliced_command(psmouse, c))
229 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO))
235 * Read the model-id bytes from the touchpad
236 * see also SYN_MODEL_* macros
238 static int synaptics_model_id(struct psmouse *psmouse)
240 struct synaptics_data *priv = psmouse->private;
243 if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi))
245 priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2];
249 static int synaptics_more_extended_queries(struct psmouse *psmouse)
251 struct synaptics_data *priv = psmouse->private;
252 unsigned char buf[3];
254 if (synaptics_send_cmd(psmouse, SYN_QUE_MEXT_CAPAB_10, buf))
257 priv->ext_cap_10 = (buf[0]<<16) | (buf[1]<<8) | buf[2];
263 * Read the board id and the "More Extended Queries" from the touchpad
264 * The board id is encoded in the "QUERY MODES" response
266 static int synaptics_query_modes(struct psmouse *psmouse)
268 struct synaptics_data *priv = psmouse->private;
269 unsigned char bid[3];
271 /* firmwares prior 7.5 have no board_id encoded */
272 if (SYN_ID_FULL(priv->identity) < 0x705)
275 if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid))
277 priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1];
279 if (SYN_MEXT_CAP_BIT(bid[0]))
280 return synaptics_more_extended_queries(psmouse);
286 * Read the firmware id from the touchpad
288 static int synaptics_firmware_id(struct psmouse *psmouse)
290 struct synaptics_data *priv = psmouse->private;
291 unsigned char fwid[3];
293 if (synaptics_send_cmd(psmouse, SYN_QUE_FIRMWARE_ID, fwid))
295 priv->firmware_id = (fwid[0] << 16) | (fwid[1] << 8) | fwid[2];
300 * Read the capability-bits from the touchpad
301 * see also the SYN_CAP_* macros
303 static int synaptics_capability(struct psmouse *psmouse)
305 struct synaptics_data *priv = psmouse->private;
306 unsigned char cap[3];
308 if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
310 priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
311 priv->ext_cap = priv->ext_cap_0c = 0;
314 * Older firmwares had submodel ID fixed to 0x47
316 if (SYN_ID_FULL(priv->identity) < 0x705 &&
317 SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) {
322 * Unless capExtended is set the rest of the flags should be ignored
324 if (!SYN_CAP_EXTENDED(priv->capabilities))
325 priv->capabilities = 0;
327 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
328 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
329 psmouse_warn(psmouse,
330 "device claims to have extended capabilities, but I'm not able to read them.\n");
332 priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
335 * if nExtBtn is greater than 8 it should be considered
336 * invalid and treated as 0
338 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8)
339 priv->ext_cap &= 0xff0fff;
343 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) {
344 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) {
345 psmouse_warn(psmouse,
346 "device claims to have extended capability 0x0c, but I'm not able to read it.\n");
348 priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2];
357 * See also the SYN_ID_* macros
359 static int synaptics_identify(struct psmouse *psmouse)
361 struct synaptics_data *priv = psmouse->private;
364 if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id))
366 priv->identity = (id[0]<<16) | (id[1]<<8) | id[2];
367 if (SYN_ID_IS_SYNAPTICS(priv->identity))
373 * Read touchpad resolution and maximum reported coordinates
374 * Resolution is left zero if touchpad does not support the query
377 static int synaptics_resolution(struct psmouse *psmouse)
379 struct synaptics_data *priv = psmouse->private;
380 unsigned char resp[3];
382 if (SYN_ID_MAJOR(priv->identity) < 4)
385 if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) {
386 if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) {
387 priv->x_res = resp[0]; /* x resolution in units/mm */
388 priv->y_res = resp[2]; /* y resolution in units/mm */
392 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 &&
393 SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) {
394 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) {
395 psmouse_warn(psmouse,
396 "device claims to have max coordinates query, but I'm not able to read it.\n");
398 priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
399 priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
400 psmouse_info(psmouse,
401 "queried max coordinates: x [..%d], y [..%d]\n",
402 priv->x_max, priv->y_max);
406 if (SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c) &&
407 (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 ||
409 * Firmware v8.1 does not report proper number of extended
410 * capabilities, but has been proven to report correct min
413 SYN_ID_FULL(priv->identity) == 0x801)) {
414 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) {
415 psmouse_warn(psmouse,
416 "device claims to have min coordinates query, but I'm not able to read it.\n");
418 priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
419 priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
420 psmouse_info(psmouse,
421 "queried min coordinates: x [%d..], y [%d..]\n",
422 priv->x_min, priv->y_min);
430 * Apply quirk(s) if the hardware matches
433 static void synaptics_apply_quirks(struct psmouse *psmouse)
435 struct synaptics_data *priv = psmouse->private;
438 for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) {
439 if (!psmouse_matches_pnp_id(psmouse,
440 min_max_pnpid_table[i].pnp_ids))
443 if (min_max_pnpid_table[i].board_id.min != ANY_BOARD_ID &&
444 priv->board_id < min_max_pnpid_table[i].board_id.min)
447 if (min_max_pnpid_table[i].board_id.max != ANY_BOARD_ID &&
448 priv->board_id > min_max_pnpid_table[i].board_id.max)
451 priv->x_min = min_max_pnpid_table[i].x_min;
452 priv->x_max = min_max_pnpid_table[i].x_max;
453 priv->y_min = min_max_pnpid_table[i].y_min;
454 priv->y_max = min_max_pnpid_table[i].y_max;
455 psmouse_info(psmouse,
456 "quirked min/max coordinates: x [%d..%d], y [%d..%d]\n",
457 priv->x_min, priv->x_max,
458 priv->y_min, priv->y_max);
463 static int synaptics_query_hardware(struct psmouse *psmouse)
465 if (synaptics_identify(psmouse))
467 if (synaptics_model_id(psmouse))
469 if (synaptics_firmware_id(psmouse))
471 if (synaptics_query_modes(psmouse))
473 if (synaptics_capability(psmouse))
475 if (synaptics_resolution(psmouse))
478 synaptics_apply_quirks(psmouse);
483 static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse)
485 static unsigned char param = 0xc8;
486 struct synaptics_data *priv = psmouse->private;
488 if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
489 SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)))
492 if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL))
495 if (ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE))
498 /* Advanced gesture mode also sends multi finger data */
499 priv->capabilities |= BIT(1);
504 static int synaptics_set_mode(struct psmouse *psmouse)
506 struct synaptics_data *priv = psmouse->private;
509 if (priv->absolute_mode)
510 priv->mode |= SYN_BIT_ABSOLUTE_MODE;
511 if (priv->disable_gesture)
512 priv->mode |= SYN_BIT_DISABLE_GESTURE;
513 if (psmouse->rate >= 80)
514 priv->mode |= SYN_BIT_HIGH_RATE;
515 if (SYN_CAP_EXTENDED(priv->capabilities))
516 priv->mode |= SYN_BIT_W_MODE;
518 if (synaptics_mode_cmd(psmouse, priv->mode))
521 if (priv->absolute_mode &&
522 synaptics_set_advanced_gesture_mode(psmouse)) {
523 psmouse_err(psmouse, "Advanced gesture mode init failed.\n");
530 static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate)
532 struct synaptics_data *priv = psmouse->private;
535 priv->mode |= SYN_BIT_HIGH_RATE;
538 priv->mode &= ~SYN_BIT_HIGH_RATE;
542 synaptics_mode_cmd(psmouse, priv->mode);
545 /*****************************************************************************
546 * Synaptics pass-through PS/2 port support
547 ****************************************************************************/
548 static int synaptics_pt_write(struct serio *serio, unsigned char c)
550 struct psmouse *parent = serio_get_drvdata(serio->parent);
551 char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */
553 if (psmouse_sliced_command(parent, c))
555 if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE))
560 static int synaptics_pt_start(struct serio *serio)
562 struct psmouse *parent = serio_get_drvdata(serio->parent);
563 struct synaptics_data *priv = parent->private;
565 serio_pause_rx(parent->ps2dev.serio);
566 priv->pt_port = serio;
567 serio_continue_rx(parent->ps2dev.serio);
572 static void synaptics_pt_stop(struct serio *serio)
574 struct psmouse *parent = serio_get_drvdata(serio->parent);
575 struct synaptics_data *priv = parent->private;
577 serio_pause_rx(parent->ps2dev.serio);
578 priv->pt_port = NULL;
579 serio_continue_rx(parent->ps2dev.serio);
582 static int synaptics_is_pt_packet(unsigned char *buf)
584 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
587 static void synaptics_pass_pt_packet(struct psmouse *psmouse,
588 struct serio *ptport,
589 unsigned char *packet)
591 struct synaptics_data *priv = psmouse->private;
592 struct psmouse *child = serio_get_drvdata(ptport);
594 if (child && child->state == PSMOUSE_ACTIVATED) {
595 serio_interrupt(ptport, packet[1] | priv->pt_buttons, 0);
596 serio_interrupt(ptport, packet[4], 0);
597 serio_interrupt(ptport, packet[5], 0);
598 if (child->pktsize == 4)
599 serio_interrupt(ptport, packet[2], 0);
601 serio_interrupt(ptport, packet[1], 0);
605 static void synaptics_pt_activate(struct psmouse *psmouse)
607 struct synaptics_data *priv = psmouse->private;
608 struct psmouse *child = serio_get_drvdata(priv->pt_port);
610 /* adjust the touchpad to child's choice of protocol */
612 if (child->pktsize == 4)
613 priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT;
615 priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT;
617 if (synaptics_mode_cmd(psmouse, priv->mode))
618 psmouse_warn(psmouse,
619 "failed to switch guest protocol\n");
623 static void synaptics_pt_create(struct psmouse *psmouse)
627 serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
630 "not enough memory for pass-through port\n");
634 serio->id.type = SERIO_PS_PSTHRU;
635 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
636 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
637 serio->write = synaptics_pt_write;
638 serio->start = synaptics_pt_start;
639 serio->stop = synaptics_pt_stop;
640 serio->parent = psmouse->ps2dev.serio;
642 psmouse->pt_activate = synaptics_pt_activate;
644 psmouse_info(psmouse, "serio: %s port at %s\n",
645 serio->name, psmouse->phys);
646 serio_register_port(serio);
649 /*****************************************************************************
650 * Functions to interpret the absolute mode packets
651 ****************************************************************************/
653 static void synaptics_parse_agm(const unsigned char buf[],
654 struct synaptics_data *priv,
655 struct synaptics_hw_state *hw)
657 struct synaptics_hw_state *agm = &priv->agm;
660 agm_packet_type = (buf[5] & 0x30) >> 4;
661 switch (agm_packet_type) {
663 /* Gesture packet: (x, y, z) half resolution */
665 agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1;
666 agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1;
667 agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1;
671 /* AGM-CONTACT packet: we are only interested in the count */
672 priv->agm_count = buf[1];
680 static void synaptics_parse_ext_buttons(const unsigned char buf[],
681 struct synaptics_data *priv,
682 struct synaptics_hw_state *hw)
684 unsigned int ext_bits =
685 (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) + 1) >> 1;
686 unsigned int ext_mask = GENMASK(ext_bits - 1, 0);
688 hw->ext_buttons = buf[4] & ext_mask;
689 hw->ext_buttons |= (buf[5] & ext_mask) << ext_bits;
692 static int synaptics_parse_hw_state(const unsigned char buf[],
693 struct synaptics_data *priv,
694 struct synaptics_hw_state *hw)
696 memset(hw, 0, sizeof(struct synaptics_hw_state));
698 if (SYN_MODEL_NEWABS(priv->model_id)) {
699 hw->w = (((buf[0] & 0x30) >> 2) |
700 ((buf[0] & 0x04) >> 1) |
701 ((buf[3] & 0x04) >> 2));
703 if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
704 SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) &&
706 synaptics_parse_agm(buf, priv, hw);
710 hw->x = (((buf[3] & 0x10) << 8) |
711 ((buf[1] & 0x0f) << 8) |
713 hw->y = (((buf[3] & 0x20) << 7) |
714 ((buf[1] & 0xf0) << 4) |
718 hw->left = (buf[0] & 0x01) ? 1 : 0;
719 hw->right = (buf[0] & 0x02) ? 1 : 0;
721 if (priv->is_forcepad) {
723 * ForcePads, like Clickpads, use middle button
724 * bits to report primary button clicks.
725 * Unfortunately they report primary button not
726 * only when user presses on the pad above certain
727 * threshold, but also when there are more than one
728 * finger on the touchpad, which interferes with
729 * out multi-finger gestures.
733 priv->press = priv->report_press = false;
734 } else if (hw->w >= 4 && ((buf[0] ^ buf[3]) & 0x01)) {
736 * Single-finger touch with pressure above
737 * the threshold. If pressure stays long
738 * enough, we'll start reporting primary
739 * button. We rely on the device continuing
740 * sending data even if finger does not
744 priv->press_start = jiffies;
746 } else if (time_after(jiffies,
748 msecs_to_jiffies(50))) {
749 priv->report_press = true;
755 hw->left = priv->report_press;
757 } else if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
759 * Clickpad's button is transmitted as middle button,
760 * however, since it is primary button, we will report
763 hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
765 } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
766 hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
768 hw->scroll = (signed char)(buf[1]);
771 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
772 hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
773 hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
776 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 0 &&
777 ((buf[0] ^ buf[3]) & 0x02)) {
778 synaptics_parse_ext_buttons(buf, priv, hw);
781 hw->x = (((buf[1] & 0x1f) << 8) | buf[2]);
782 hw->y = (((buf[4] & 0x1f) << 8) | buf[5]);
784 hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F));
785 hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1));
787 hw->left = (buf[0] & 0x01) ? 1 : 0;
788 hw->right = (buf[0] & 0x02) ? 1 : 0;
792 * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE
793 * is used by some firmware to indicate a finger at the edge of
794 * the touchpad whose precise position cannot be determined, so
795 * convert these values to the maximum axis value.
797 if (hw->x > X_MAX_POSITIVE)
798 hw->x -= 1 << ABS_POS_BITS;
799 else if (hw->x == X_MAX_POSITIVE)
802 if (hw->y > Y_MAX_POSITIVE)
803 hw->y -= 1 << ABS_POS_BITS;
804 else if (hw->y == Y_MAX_POSITIVE)
810 static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot,
811 bool active, int x, int y)
813 input_mt_slot(dev, slot);
814 input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
816 input_report_abs(dev, ABS_MT_POSITION_X, x);
817 input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y));
821 static void synaptics_report_semi_mt_data(struct input_dev *dev,
822 const struct synaptics_hw_state *a,
823 const struct synaptics_hw_state *b,
826 if (num_fingers >= 2) {
827 synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x),
829 synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x),
831 } else if (num_fingers == 1) {
832 synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y);
833 synaptics_report_semi_mt_slot(dev, 1, false, 0, 0);
835 synaptics_report_semi_mt_slot(dev, 0, false, 0, 0);
836 synaptics_report_semi_mt_slot(dev, 1, false, 0, 0);
840 static void synaptics_report_ext_buttons(struct psmouse *psmouse,
841 const struct synaptics_hw_state *hw)
843 struct input_dev *dev = psmouse->dev;
844 struct synaptics_data *priv = psmouse->private;
845 int ext_bits = (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) + 1) >> 1;
846 char buf[6] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
849 if (!SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap))
852 /* Bug in FW 8.1, buttons are reported only when ExtBit is 1 */
853 if (SYN_ID_FULL(priv->identity) == 0x801 &&
854 !((psmouse->packet[0] ^ psmouse->packet[3]) & 0x02))
857 if (!SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10)) {
858 for (i = 0; i < ext_bits; i++) {
859 input_report_key(dev, BTN_0 + 2 * i,
860 hw->ext_buttons & (1 << i));
861 input_report_key(dev, BTN_1 + 2 * i,
862 hw->ext_buttons & (1 << (i + ext_bits)));
868 * This generation of touchpads has the trackstick buttons
869 * physically wired to the touchpad. Re-route them through
870 * the pass-through interface.
875 /* The trackstick expects at most 3 buttons */
876 priv->pt_buttons = SYN_CAP_EXT_BUTTON_STICK_L(hw->ext_buttons) |
877 SYN_CAP_EXT_BUTTON_STICK_R(hw->ext_buttons) << 1 |
878 SYN_CAP_EXT_BUTTON_STICK_M(hw->ext_buttons) << 2;
880 synaptics_pass_pt_packet(psmouse, priv->pt_port, buf);
883 static void synaptics_report_buttons(struct psmouse *psmouse,
884 const struct synaptics_hw_state *hw)
886 struct input_dev *dev = psmouse->dev;
887 struct synaptics_data *priv = psmouse->private;
889 input_report_key(dev, BTN_LEFT, hw->left);
890 input_report_key(dev, BTN_RIGHT, hw->right);
892 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
893 input_report_key(dev, BTN_MIDDLE, hw->middle);
895 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
896 input_report_key(dev, BTN_FORWARD, hw->up);
897 input_report_key(dev, BTN_BACK, hw->down);
900 synaptics_report_ext_buttons(psmouse, hw);
903 static void synaptics_report_mt_data(struct psmouse *psmouse,
904 const struct synaptics_hw_state *sgm,
907 struct input_dev *dev = psmouse->dev;
908 struct synaptics_data *priv = psmouse->private;
909 const struct synaptics_hw_state *hw[2] = { sgm, &priv->agm };
910 struct input_mt_pos pos[2];
911 int slot[2], nsemi, i;
913 nsemi = clamp_val(num_fingers, 0, 2);
915 for (i = 0; i < nsemi; i++) {
917 pos[i].y = synaptics_invert_y(hw[i]->y);
920 input_mt_assign_slots(dev, slot, pos, nsemi, 0);
922 for (i = 0; i < nsemi; i++) {
923 input_mt_slot(dev, slot[i]);
924 input_mt_report_slot_state(dev, MT_TOOL_FINGER, true);
925 input_report_abs(dev, ABS_MT_POSITION_X, pos[i].x);
926 input_report_abs(dev, ABS_MT_POSITION_Y, pos[i].y);
927 input_report_abs(dev, ABS_MT_PRESSURE, hw[i]->z);
930 input_mt_drop_unused(dev);
932 /* Don't use active slot count to generate BTN_TOOL events. */
933 input_mt_report_pointer_emulation(dev, false);
935 /* Send the number of fingers reported by touchpad itself. */
936 input_mt_report_finger_count(dev, num_fingers);
938 synaptics_report_buttons(psmouse, sgm);
943 static void synaptics_image_sensor_process(struct psmouse *psmouse,
944 struct synaptics_hw_state *sgm)
946 struct synaptics_data *priv = psmouse->private;
950 * Update mt_state using the new finger count and current mt_state.
954 else if (sgm->w >= 4)
956 else if (sgm->w == 0)
958 else if (sgm->w == 1)
959 num_fingers = priv->agm_count ? priv->agm_count : 3;
963 /* Send resulting input events to user space */
964 synaptics_report_mt_data(psmouse, sgm, num_fingers);
968 * called for each full received packet from the touchpad
970 static void synaptics_process_packet(struct psmouse *psmouse)
972 struct input_dev *dev = psmouse->dev;
973 struct synaptics_data *priv = psmouse->private;
974 struct synaptics_hw_state hw;
978 if (synaptics_parse_hw_state(psmouse->packet, priv, &hw))
981 if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
982 synaptics_image_sensor_process(psmouse, &hw);
987 priv->scroll += hw.scroll;
989 while (priv->scroll >= 4) {
990 input_report_key(dev, BTN_BACK, !hw.down);
992 input_report_key(dev, BTN_BACK, hw.down);
996 while (priv->scroll <= -4) {
997 input_report_key(dev, BTN_FORWARD, !hw.up);
999 input_report_key(dev, BTN_FORWARD, hw.up);
1006 if (hw.z > 0 && hw.x > 1) {
1009 if (SYN_CAP_EXTENDED(priv->capabilities)) {
1012 if (SYN_CAP_MULTIFINGER(priv->capabilities))
1013 num_fingers = hw.w + 2;
1016 if (SYN_MODEL_PEN(priv->model_id))
1017 ; /* Nothing, treat a pen as a single finger */
1020 if (SYN_CAP_PALMDETECT(priv->capabilities))
1021 finger_width = hw.w;
1030 if (cr48_profile_sensor) {
1031 synaptics_report_mt_data(psmouse, &hw, num_fingers);
1035 if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c))
1036 synaptics_report_semi_mt_data(dev, &hw, &priv->agm,
1040 * BTN_TOUCH has to be first as mousedev relies on it when doing
1041 * absolute -> relative conversion
1043 if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1);
1044 if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0);
1046 if (num_fingers > 0) {
1047 input_report_abs(dev, ABS_X, hw.x);
1048 input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y));
1050 input_report_abs(dev, ABS_PRESSURE, hw.z);
1052 if (SYN_CAP_PALMDETECT(priv->capabilities))
1053 input_report_abs(dev, ABS_TOOL_WIDTH, finger_width);
1055 input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1);
1056 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
1057 input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
1058 input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
1061 synaptics_report_buttons(psmouse, &hw);
1066 static int synaptics_validate_byte(struct psmouse *psmouse,
1067 int idx, unsigned char pkt_type)
1069 static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
1070 static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
1071 static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
1072 static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
1073 static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
1074 const char *packet = psmouse->packet;
1076 if (idx < 0 || idx > 4)
1082 case SYN_NEWABS_RELAXED:
1083 return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx];
1085 case SYN_NEWABS_STRICT:
1086 return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx];
1089 return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx];
1092 psmouse_err(psmouse, "unknown packet type %d\n", pkt_type);
1097 static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse)
1101 for (i = 0; i < 5; i++)
1102 if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) {
1103 psmouse_info(psmouse, "using relaxed packet validation\n");
1104 return SYN_NEWABS_RELAXED;
1107 return SYN_NEWABS_STRICT;
1110 static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
1112 struct synaptics_data *priv = psmouse->private;
1114 if (psmouse->pktcnt >= 6) { /* Full packet received */
1115 if (unlikely(priv->pkt_type == SYN_NEWABS))
1116 priv->pkt_type = synaptics_detect_pkt_type(psmouse);
1118 if (SYN_CAP_PASS_THROUGH(priv->capabilities) &&
1119 synaptics_is_pt_packet(psmouse->packet)) {
1121 synaptics_pass_pt_packet(psmouse, priv->pt_port,
1124 synaptics_process_packet(psmouse);
1126 return PSMOUSE_FULL_PACKET;
1129 return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ?
1130 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
1133 /*****************************************************************************
1134 * Driver initialization/cleanup functions
1135 ****************************************************************************/
1136 static void set_abs_position_params(struct input_dev *dev,
1137 struct synaptics_data *priv, int x_code,
1140 int x_min = priv->x_min ?: XMIN_NOMINAL;
1141 int x_max = priv->x_max ?: XMAX_NOMINAL;
1142 int y_min = priv->y_min ?: YMIN_NOMINAL;
1143 int y_max = priv->y_max ?: YMAX_NOMINAL;
1144 int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ?
1145 SYN_REDUCED_FILTER_FUZZ : 0;
1147 input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0);
1148 input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0);
1149 input_abs_set_res(dev, x_code, priv->x_res);
1150 input_abs_set_res(dev, y_code, priv->y_res);
1153 static void set_input_params(struct psmouse *psmouse,
1154 struct synaptics_data *priv)
1156 struct input_dev *dev = psmouse->dev;
1159 /* Things that apply to both modes */
1160 __set_bit(INPUT_PROP_POINTER, dev->propbit);
1161 __set_bit(EV_KEY, dev->evbit);
1162 __set_bit(BTN_LEFT, dev->keybit);
1163 __set_bit(BTN_RIGHT, dev->keybit);
1165 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
1166 __set_bit(BTN_MIDDLE, dev->keybit);
1168 if (!priv->absolute_mode) {
1170 __set_bit(EV_REL, dev->evbit);
1171 __set_bit(REL_X, dev->relbit);
1172 __set_bit(REL_Y, dev->relbit);
1177 __set_bit(EV_ABS, dev->evbit);
1178 set_abs_position_params(dev, priv, ABS_X, ABS_Y);
1179 input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
1181 if (cr48_profile_sensor)
1182 input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
1184 if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
1185 set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
1187 /* Image sensors can report per-contact pressure */
1188 input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
1189 input_mt_init_slots(dev, 2, INPUT_MT_POINTER | INPUT_MT_TRACK);
1191 /* Image sensors can signal 4 and 5 finger clicks */
1192 __set_bit(BTN_TOOL_QUADTAP, dev->keybit);
1193 __set_bit(BTN_TOOL_QUINTTAP, dev->keybit);
1194 } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) {
1195 set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
1198 * Profile sensor in CR-48 tracks contacts reasonably well,
1199 * other non-image sensors with AGM use semi-mt.
1201 input_mt_init_slots(dev, 2,
1203 (cr48_profile_sensor ?
1204 INPUT_MT_TRACK : INPUT_MT_SEMI_MT));
1207 if (SYN_CAP_PALMDETECT(priv->capabilities))
1208 input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0);
1210 __set_bit(BTN_TOUCH, dev->keybit);
1211 __set_bit(BTN_TOOL_FINGER, dev->keybit);
1213 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
1214 __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
1215 __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
1218 if (SYN_CAP_FOUR_BUTTON(priv->capabilities) ||
1219 SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
1220 __set_bit(BTN_FORWARD, dev->keybit);
1221 __set_bit(BTN_BACK, dev->keybit);
1224 if (!SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10))
1225 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
1226 __set_bit(BTN_0 + i, dev->keybit);
1228 __clear_bit(EV_REL, dev->evbit);
1229 __clear_bit(REL_X, dev->relbit);
1230 __clear_bit(REL_Y, dev->relbit);
1232 if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
1233 __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
1234 if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids) &&
1235 !SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10))
1236 __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit);
1237 /* Clickpads report only left button */
1238 __clear_bit(BTN_RIGHT, dev->keybit);
1239 __clear_bit(BTN_MIDDLE, dev->keybit);
1243 static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse,
1244 void *data, char *buf)
1246 struct synaptics_data *priv = psmouse->private;
1248 return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0');
1251 static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse,
1252 void *data, const char *buf,
1255 struct synaptics_data *priv = psmouse->private;
1259 err = kstrtouint(buf, 10, &value);
1266 if (value == priv->disable_gesture)
1269 priv->disable_gesture = value;
1271 priv->mode |= SYN_BIT_DISABLE_GESTURE;
1273 priv->mode &= ~SYN_BIT_DISABLE_GESTURE;
1275 if (synaptics_mode_cmd(psmouse, priv->mode))
1281 PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL,
1282 synaptics_show_disable_gesture,
1283 synaptics_set_disable_gesture);
1285 static void synaptics_disconnect(struct psmouse *psmouse)
1287 struct synaptics_data *priv = psmouse->private;
1289 if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity))
1290 device_remove_file(&psmouse->ps2dev.serio->dev,
1291 &psmouse_attr_disable_gesture.dattr);
1293 synaptics_reset(psmouse);
1295 psmouse->private = NULL;
1298 static int synaptics_reconnect(struct psmouse *psmouse)
1300 struct synaptics_data *priv = psmouse->private;
1301 struct synaptics_data old_priv = *priv;
1302 unsigned char param[2];
1307 psmouse_reset(psmouse);
1310 * On some boxes, right after resuming, the touchpad
1311 * needs some time to finish initializing (I assume
1312 * it needs time to calibrate) and start responding
1313 * to Synaptics-specific queries, so let's wait a
1318 ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID);
1319 error = synaptics_detect(psmouse, 0);
1320 } while (error && ++retry < 3);
1326 psmouse_dbg(psmouse, "reconnected after %d tries\n", retry);
1328 if (synaptics_query_hardware(psmouse)) {
1329 psmouse_err(psmouse, "Unable to query device.\n");
1333 if (synaptics_set_mode(psmouse)) {
1334 psmouse_err(psmouse, "Unable to initialize device.\n");
1338 if (old_priv.identity != priv->identity ||
1339 old_priv.model_id != priv->model_id ||
1340 old_priv.capabilities != priv->capabilities ||
1341 old_priv.ext_cap != priv->ext_cap) {
1342 psmouse_err(psmouse,
1343 "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n",
1344 old_priv.identity, priv->identity,
1345 old_priv.model_id, priv->model_id,
1346 old_priv.capabilities, priv->capabilities,
1347 old_priv.ext_cap, priv->ext_cap);
1354 static bool impaired_toshiba_kbc;
1356 static const struct dmi_system_id toshiba_dmi_table[] __initconst = {
1357 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
1359 /* Toshiba Satellite */
1361 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1362 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"),
1366 /* Toshiba Dynabook */
1368 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1369 DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"),
1373 /* Toshiba Portege M300 */
1375 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1376 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"),
1381 /* Toshiba Portege M300 */
1383 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1384 DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"),
1385 DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"),
1393 static bool broken_olpc_ec;
1395 static const struct dmi_system_id olpc_dmi_table[] __initconst = {
1396 #if defined(CONFIG_DMI) && defined(CONFIG_OLPC)
1398 /* OLPC XO-1 or XO-1.5 */
1400 DMI_MATCH(DMI_SYS_VENDOR, "OLPC"),
1401 DMI_MATCH(DMI_PRODUCT_NAME, "XO"),
1408 static const struct dmi_system_id __initconst cr48_dmi_table[] = {
1409 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
1411 /* Cr-48 Chromebook (Codename Mario) */
1413 DMI_MATCH(DMI_SYS_VENDOR, "IEC"),
1414 DMI_MATCH(DMI_PRODUCT_NAME, "Mario"),
1421 void __init synaptics_module_init(void)
1423 impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table);
1424 broken_olpc_ec = dmi_check_system(olpc_dmi_table);
1425 cr48_profile_sensor = dmi_check_system(cr48_dmi_table);
1428 static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode)
1430 struct synaptics_data *priv;
1434 * The OLPC XO has issues with Synaptics' absolute mode; the constant
1435 * packet spew overloads the EC such that key presses on the keyboard
1436 * are missed. Given that, don't even attempt to use Absolute mode.
1437 * Relative mode seems to work just fine.
1439 if (absolute_mode && broken_olpc_ec) {
1440 psmouse_info(psmouse,
1441 "OLPC XO detected, not enabling Synaptics protocol.\n");
1445 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL);
1449 psmouse_reset(psmouse);
1451 if (synaptics_query_hardware(psmouse)) {
1452 psmouse_err(psmouse, "Unable to query device.\n");
1456 priv->absolute_mode = absolute_mode;
1457 if (SYN_ID_DISGEST_SUPPORTED(priv->identity))
1458 priv->disable_gesture = true;
1461 * Unfortunately ForcePad capability is not exported over PS/2,
1462 * so we have to resort to checking PNP IDs.
1464 priv->is_forcepad = psmouse_matches_pnp_id(psmouse, forcepad_pnp_ids);
1466 if (synaptics_set_mode(psmouse)) {
1467 psmouse_err(psmouse, "Unable to initialize device.\n");
1471 priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
1473 psmouse_info(psmouse,
1474 "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n",
1475 SYN_ID_MODEL(priv->identity),
1476 SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
1478 priv->capabilities, priv->ext_cap, priv->ext_cap_0c,
1479 priv->board_id, priv->firmware_id);
1481 set_input_params(psmouse, priv);
1484 * Encode touchpad model so that it can be used to set
1485 * input device->id.version and be visible to userspace.
1486 * Because version is __u16 we have to drop something.
1487 * Hardware info bits seem to be good candidates as they
1488 * are documented to be for Synaptics corp. internal use.
1490 psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) |
1491 (priv->model_id & 0x000000ff);
1493 if (absolute_mode) {
1494 psmouse->protocol_handler = synaptics_process_byte;
1495 psmouse->pktsize = 6;
1497 /* Relative mode follows standard PS/2 mouse protocol */
1498 psmouse->protocol_handler = psmouse_process_byte;
1499 psmouse->pktsize = 3;
1502 psmouse->set_rate = synaptics_set_rate;
1503 psmouse->disconnect = synaptics_disconnect;
1504 psmouse->reconnect = synaptics_reconnect;
1505 psmouse->cleanup = synaptics_reset;
1506 /* Synaptics can usually stay in sync without extra help */
1507 psmouse->resync_time = 0;
1509 if (SYN_CAP_PASS_THROUGH(priv->capabilities))
1510 synaptics_pt_create(psmouse);
1513 * Toshiba's KBC seems to have trouble handling data from
1514 * Synaptics at full rate. Switch to a lower rate (roughly
1515 * the same rate as a standard PS/2 mouse).
1517 if (psmouse->rate >= 80 && impaired_toshiba_kbc) {
1518 psmouse_info(psmouse,
1519 "Toshiba %s detected, limiting rate to 40pps.\n",
1520 dmi_get_system_info(DMI_PRODUCT_NAME));
1524 if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) {
1525 err = device_create_file(&psmouse->ps2dev.serio->dev,
1526 &psmouse_attr_disable_gesture.dattr);
1528 psmouse_err(psmouse,
1529 "Failed to create disable_gesture attribute (%d)",
1542 int synaptics_init(struct psmouse *psmouse)
1544 return __synaptics_init(psmouse, true);
1547 int synaptics_init_relative(struct psmouse *psmouse)
1549 return __synaptics_init(psmouse, false);
1552 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */
1554 void __init synaptics_module_init(void)
1558 int synaptics_init(struct psmouse *psmouse)
1563 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */