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 /* maximum ABS_MT_POSITION displacement (in mm) */
73 /*****************************************************************************
74 * Stuff we need even when we do not want native Synaptics support
75 ****************************************************************************/
78 * Set the synaptics touchpad mode byte by special commands
80 static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode)
82 unsigned char param[1];
84 if (psmouse_sliced_command(psmouse, mode))
86 param[0] = SYN_PS_SET_MODE2;
87 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE))
92 int synaptics_detect(struct psmouse *psmouse, bool set_properties)
94 struct ps2dev *ps2dev = &psmouse->ps2dev;
95 unsigned char param[4];
99 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
100 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
101 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
102 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
103 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
105 if (param[1] != 0x47)
108 if (set_properties) {
109 psmouse->vendor = "Synaptics";
110 psmouse->name = "TouchPad";
116 void synaptics_reset(struct psmouse *psmouse)
118 /* reset touchpad back to relative mode, gestures enabled */
119 synaptics_mode_cmd(psmouse, 0);
122 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS
124 static bool cr48_profile_sensor;
126 #define ANY_BOARD_ID 0
127 struct min_max_quirk {
128 const char * const *pnp_ids;
130 unsigned long int min, max;
132 int x_min, x_max, y_min, y_max;
135 static const struct min_max_quirk min_max_pnpid_table[] = {
137 (const char * const []){"LEN0033", NULL},
138 {ANY_BOARD_ID, ANY_BOARD_ID},
139 1024, 5052, 2258, 4832
142 (const char * const []){"LEN0042", NULL},
143 {ANY_BOARD_ID, ANY_BOARD_ID},
144 1232, 5710, 1156, 4696
147 (const char * const []){"LEN0034", "LEN0036", "LEN0037",
148 "LEN0039", "LEN2002", "LEN2004",
150 {ANY_BOARD_ID, 2961},
151 1024, 5112, 2024, 4832
154 (const char * const []){"LEN2000", NULL},
155 {ANY_BOARD_ID, ANY_BOARD_ID},
156 1024, 5113, 2021, 4832
159 (const char * const []){"LEN2001", NULL},
160 {ANY_BOARD_ID, ANY_BOARD_ID},
161 1024, 5022, 2508, 4832
164 (const char * const []){"LEN2006", NULL},
166 1024, 5045, 2457, 4832
169 (const char * const []){"LEN2006", NULL},
170 {ANY_BOARD_ID, ANY_BOARD_ID},
171 1264, 5675, 1171, 4688
176 /* This list has been kindly provided by Synaptics. */
177 static const char * const topbuttonpad_pnp_ids[] = {
187 "LEN0033", /* Helix */
188 "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */
189 "LEN0035", /* X240 */
190 "LEN0036", /* T440 */
191 "LEN0037", /* X1 Carbon 2nd */
193 "LEN0039", /* T440s */
195 "LEN0042", /* Yoga */
199 "LEN2000", /* S540 */
200 "LEN2001", /* Edge E431 */
201 "LEN2002", /* Edge E531 */
203 "LEN2004", /* L440 */
205 "LEN2006", /* Edge E440/E540 */
214 /* This list has been kindly provided by Synaptics. */
215 static const char * const forcepad_pnp_ids[] = {
221 /*****************************************************************************
222 * Synaptics communications functions
223 ****************************************************************************/
226 * Synaptics touchpads report the y coordinate from bottom to top, which is
227 * opposite from what userspace expects.
228 * This function is used to invert y before reporting.
230 static int synaptics_invert_y(int y)
232 return YMAX_NOMINAL + YMIN_NOMINAL - y;
236 * Send a command to the synpatics touchpad by special commands
238 static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param)
240 if (psmouse_sliced_command(psmouse, c))
242 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO))
248 * Read the model-id bytes from the touchpad
249 * see also SYN_MODEL_* macros
251 static int synaptics_model_id(struct psmouse *psmouse)
253 struct synaptics_data *priv = psmouse->private;
256 if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi))
258 priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2];
262 static int synaptics_more_extended_queries(struct psmouse *psmouse)
264 struct synaptics_data *priv = psmouse->private;
265 unsigned char buf[3];
267 if (synaptics_send_cmd(psmouse, SYN_QUE_MEXT_CAPAB_10, buf))
270 priv->ext_cap_10 = (buf[0]<<16) | (buf[1]<<8) | buf[2];
276 * Read the board id and the "More Extended Queries" from the touchpad
277 * The board id is encoded in the "QUERY MODES" response
279 static int synaptics_query_modes(struct psmouse *psmouse)
281 struct synaptics_data *priv = psmouse->private;
282 unsigned char bid[3];
284 /* firmwares prior 7.5 have no board_id encoded */
285 if (SYN_ID_FULL(priv->identity) < 0x705)
288 if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid))
290 priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1];
292 if (SYN_MEXT_CAP_BIT(bid[0]))
293 return synaptics_more_extended_queries(psmouse);
299 * Read the firmware id from the touchpad
301 static int synaptics_firmware_id(struct psmouse *psmouse)
303 struct synaptics_data *priv = psmouse->private;
304 unsigned char fwid[3];
306 if (synaptics_send_cmd(psmouse, SYN_QUE_FIRMWARE_ID, fwid))
308 priv->firmware_id = (fwid[0] << 16) | (fwid[1] << 8) | fwid[2];
313 * Read the capability-bits from the touchpad
314 * see also the SYN_CAP_* macros
316 static int synaptics_capability(struct psmouse *psmouse)
318 struct synaptics_data *priv = psmouse->private;
319 unsigned char cap[3];
321 if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
323 priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
324 priv->ext_cap = priv->ext_cap_0c = 0;
327 * Older firmwares had submodel ID fixed to 0x47
329 if (SYN_ID_FULL(priv->identity) < 0x705 &&
330 SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) {
335 * Unless capExtended is set the rest of the flags should be ignored
337 if (!SYN_CAP_EXTENDED(priv->capabilities))
338 priv->capabilities = 0;
340 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
341 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
342 psmouse_warn(psmouse,
343 "device claims to have extended capabilities, but I'm not able to read them.\n");
345 priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
348 * if nExtBtn is greater than 8 it should be considered
349 * invalid and treated as 0
351 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8)
352 priv->ext_cap &= 0xff0fff;
356 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) {
357 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) {
358 psmouse_warn(psmouse,
359 "device claims to have extended capability 0x0c, but I'm not able to read it.\n");
361 priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2];
370 * See also the SYN_ID_* macros
372 static int synaptics_identify(struct psmouse *psmouse)
374 struct synaptics_data *priv = psmouse->private;
377 if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id))
379 priv->identity = (id[0]<<16) | (id[1]<<8) | id[2];
380 if (SYN_ID_IS_SYNAPTICS(priv->identity))
386 * Read touchpad resolution and maximum reported coordinates
387 * Resolution is left zero if touchpad does not support the query
390 static int synaptics_resolution(struct psmouse *psmouse)
392 struct synaptics_data *priv = psmouse->private;
393 unsigned char resp[3];
395 if (SYN_ID_MAJOR(priv->identity) < 4)
398 if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) {
399 if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) {
400 priv->x_res = resp[0]; /* x resolution in units/mm */
401 priv->y_res = resp[2]; /* y resolution in units/mm */
405 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 &&
406 SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) {
407 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) {
408 psmouse_warn(psmouse,
409 "device claims to have max coordinates query, but I'm not able to read it.\n");
411 priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
412 priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
413 psmouse_info(psmouse,
414 "queried max coordinates: x [..%d], y [..%d]\n",
415 priv->x_max, priv->y_max);
419 if (SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c) &&
420 (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 ||
422 * Firmware v8.1 does not report proper number of extended
423 * capabilities, but has been proven to report correct min
426 SYN_ID_FULL(priv->identity) == 0x801)) {
427 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) {
428 psmouse_warn(psmouse,
429 "device claims to have min coordinates query, but I'm not able to read it.\n");
431 priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
432 priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
433 psmouse_info(psmouse,
434 "queried min coordinates: x [%d..], y [%d..]\n",
435 priv->x_min, priv->y_min);
443 * Apply quirk(s) if the hardware matches
446 static void synaptics_apply_quirks(struct psmouse *psmouse)
448 struct synaptics_data *priv = psmouse->private;
451 for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) {
452 if (!psmouse_matches_pnp_id(psmouse,
453 min_max_pnpid_table[i].pnp_ids))
456 if (min_max_pnpid_table[i].board_id.min != ANY_BOARD_ID &&
457 priv->board_id < min_max_pnpid_table[i].board_id.min)
460 if (min_max_pnpid_table[i].board_id.max != ANY_BOARD_ID &&
461 priv->board_id > min_max_pnpid_table[i].board_id.max)
464 priv->x_min = min_max_pnpid_table[i].x_min;
465 priv->x_max = min_max_pnpid_table[i].x_max;
466 priv->y_min = min_max_pnpid_table[i].y_min;
467 priv->y_max = min_max_pnpid_table[i].y_max;
468 psmouse_info(psmouse,
469 "quirked min/max coordinates: x [%d..%d], y [%d..%d]\n",
470 priv->x_min, priv->x_max,
471 priv->y_min, priv->y_max);
476 static int synaptics_query_hardware(struct psmouse *psmouse)
478 if (synaptics_identify(psmouse))
480 if (synaptics_model_id(psmouse))
482 if (synaptics_firmware_id(psmouse))
484 if (synaptics_query_modes(psmouse))
486 if (synaptics_capability(psmouse))
488 if (synaptics_resolution(psmouse))
491 synaptics_apply_quirks(psmouse);
496 static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse)
498 static unsigned char param = 0xc8;
499 struct synaptics_data *priv = psmouse->private;
501 if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
502 SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)))
505 if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL))
508 if (ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE))
511 /* Advanced gesture mode also sends multi finger data */
512 priv->capabilities |= BIT(1);
517 static int synaptics_set_mode(struct psmouse *psmouse)
519 struct synaptics_data *priv = psmouse->private;
523 if (priv->absolute_mode) {
524 priv->mode |= SYN_BIT_ABSOLUTE_MODE;
525 if (SYN_CAP_EXTENDED(priv->capabilities))
526 priv->mode |= SYN_BIT_W_MODE;
529 if (!SYN_MODE_WMODE(priv->mode) && priv->disable_gesture)
530 priv->mode |= SYN_BIT_DISABLE_GESTURE;
532 if (psmouse->rate >= 80)
533 priv->mode |= SYN_BIT_HIGH_RATE;
535 if (synaptics_mode_cmd(psmouse, priv->mode))
538 if (priv->absolute_mode &&
539 synaptics_set_advanced_gesture_mode(psmouse)) {
540 psmouse_err(psmouse, "Advanced gesture mode init failed.\n");
547 static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate)
549 struct synaptics_data *priv = psmouse->private;
552 priv->mode |= SYN_BIT_HIGH_RATE;
555 priv->mode &= ~SYN_BIT_HIGH_RATE;
559 synaptics_mode_cmd(psmouse, priv->mode);
562 /*****************************************************************************
563 * Synaptics pass-through PS/2 port support
564 ****************************************************************************/
565 static int synaptics_pt_write(struct serio *serio, unsigned char c)
567 struct psmouse *parent = serio_get_drvdata(serio->parent);
568 char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */
570 if (psmouse_sliced_command(parent, c))
572 if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE))
577 static int synaptics_pt_start(struct serio *serio)
579 struct psmouse *parent = serio_get_drvdata(serio->parent);
580 struct synaptics_data *priv = parent->private;
582 serio_pause_rx(parent->ps2dev.serio);
583 priv->pt_port = serio;
584 serio_continue_rx(parent->ps2dev.serio);
589 static void synaptics_pt_stop(struct serio *serio)
591 struct psmouse *parent = serio_get_drvdata(serio->parent);
592 struct synaptics_data *priv = parent->private;
594 serio_pause_rx(parent->ps2dev.serio);
595 priv->pt_port = NULL;
596 serio_continue_rx(parent->ps2dev.serio);
599 static int synaptics_is_pt_packet(unsigned char *buf)
601 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
604 static void synaptics_pass_pt_packet(struct psmouse *psmouse,
605 struct serio *ptport,
606 unsigned char *packet)
608 struct synaptics_data *priv = psmouse->private;
609 struct psmouse *child = serio_get_drvdata(ptport);
611 if (child && child->state == PSMOUSE_ACTIVATED) {
612 serio_interrupt(ptport, packet[1] | priv->pt_buttons, 0);
613 serio_interrupt(ptport, packet[4], 0);
614 serio_interrupt(ptport, packet[5], 0);
615 if (child->pktsize == 4)
616 serio_interrupt(ptport, packet[2], 0);
618 serio_interrupt(ptport, packet[1], 0);
622 static void synaptics_pt_activate(struct psmouse *psmouse)
624 struct synaptics_data *priv = psmouse->private;
625 struct psmouse *child = serio_get_drvdata(priv->pt_port);
627 /* adjust the touchpad to child's choice of protocol */
629 if (child->pktsize == 4)
630 priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT;
632 priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT;
634 if (synaptics_mode_cmd(psmouse, priv->mode))
635 psmouse_warn(psmouse,
636 "failed to switch guest protocol\n");
640 static void synaptics_pt_create(struct psmouse *psmouse)
644 serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
647 "not enough memory for pass-through port\n");
651 serio->id.type = SERIO_PS_PSTHRU;
652 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
653 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
654 serio->write = synaptics_pt_write;
655 serio->start = synaptics_pt_start;
656 serio->stop = synaptics_pt_stop;
657 serio->parent = psmouse->ps2dev.serio;
659 psmouse->pt_activate = synaptics_pt_activate;
661 psmouse_info(psmouse, "serio: %s port at %s\n",
662 serio->name, psmouse->phys);
663 serio_register_port(serio);
666 /*****************************************************************************
667 * Functions to interpret the absolute mode packets
668 ****************************************************************************/
670 static void synaptics_parse_agm(const unsigned char buf[],
671 struct synaptics_data *priv,
672 struct synaptics_hw_state *hw)
674 struct synaptics_hw_state *agm = &priv->agm;
677 agm_packet_type = (buf[5] & 0x30) >> 4;
678 switch (agm_packet_type) {
680 /* Gesture packet: (x, y, z) half resolution */
682 agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1;
683 agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1;
684 agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1;
688 /* AGM-CONTACT packet: we are only interested in the count */
689 priv->agm_count = buf[1];
697 static void synaptics_parse_ext_buttons(const unsigned char buf[],
698 struct synaptics_data *priv,
699 struct synaptics_hw_state *hw)
701 unsigned int ext_bits =
702 (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) + 1) >> 1;
703 unsigned int ext_mask = GENMASK(ext_bits - 1, 0);
705 hw->ext_buttons = buf[4] & ext_mask;
706 hw->ext_buttons |= (buf[5] & ext_mask) << ext_bits;
709 static int synaptics_parse_hw_state(const unsigned char buf[],
710 struct synaptics_data *priv,
711 struct synaptics_hw_state *hw)
713 memset(hw, 0, sizeof(struct synaptics_hw_state));
715 if (SYN_MODEL_NEWABS(priv->model_id)) {
716 hw->w = (((buf[0] & 0x30) >> 2) |
717 ((buf[0] & 0x04) >> 1) |
718 ((buf[3] & 0x04) >> 2));
720 if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
721 SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) &&
723 synaptics_parse_agm(buf, priv, hw);
727 hw->x = (((buf[3] & 0x10) << 8) |
728 ((buf[1] & 0x0f) << 8) |
730 hw->y = (((buf[3] & 0x20) << 7) |
731 ((buf[1] & 0xf0) << 4) |
735 hw->left = (buf[0] & 0x01) ? 1 : 0;
736 hw->right = (buf[0] & 0x02) ? 1 : 0;
738 if (priv->is_forcepad) {
740 * ForcePads, like Clickpads, use middle button
741 * bits to report primary button clicks.
742 * Unfortunately they report primary button not
743 * only when user presses on the pad above certain
744 * threshold, but also when there are more than one
745 * finger on the touchpad, which interferes with
746 * out multi-finger gestures.
750 priv->press = priv->report_press = false;
751 } else if (hw->w >= 4 && ((buf[0] ^ buf[3]) & 0x01)) {
753 * Single-finger touch with pressure above
754 * the threshold. If pressure stays long
755 * enough, we'll start reporting primary
756 * button. We rely on the device continuing
757 * sending data even if finger does not
761 priv->press_start = jiffies;
763 } else if (time_after(jiffies,
765 msecs_to_jiffies(50))) {
766 priv->report_press = true;
772 hw->left = priv->report_press;
774 } else if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
776 * Clickpad's button is transmitted as middle button,
777 * however, since it is primary button, we will report
780 hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
782 } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
783 hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
785 hw->scroll = (signed char)(buf[1]);
788 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
789 hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
790 hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
793 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 0 &&
794 ((buf[0] ^ buf[3]) & 0x02)) {
795 synaptics_parse_ext_buttons(buf, priv, hw);
798 hw->x = (((buf[1] & 0x1f) << 8) | buf[2]);
799 hw->y = (((buf[4] & 0x1f) << 8) | buf[5]);
801 hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F));
802 hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1));
804 hw->left = (buf[0] & 0x01) ? 1 : 0;
805 hw->right = (buf[0] & 0x02) ? 1 : 0;
809 * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE
810 * is used by some firmware to indicate a finger at the edge of
811 * the touchpad whose precise position cannot be determined, so
812 * convert these values to the maximum axis value.
814 if (hw->x > X_MAX_POSITIVE)
815 hw->x -= 1 << ABS_POS_BITS;
816 else if (hw->x == X_MAX_POSITIVE)
819 if (hw->y > Y_MAX_POSITIVE)
820 hw->y -= 1 << ABS_POS_BITS;
821 else if (hw->y == Y_MAX_POSITIVE)
827 static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot,
828 bool active, int x, int y)
830 input_mt_slot(dev, slot);
831 input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
833 input_report_abs(dev, ABS_MT_POSITION_X, x);
834 input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y));
838 static void synaptics_report_semi_mt_data(struct input_dev *dev,
839 const struct synaptics_hw_state *a,
840 const struct synaptics_hw_state *b,
843 if (num_fingers >= 2) {
844 synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x),
846 synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x),
848 } else if (num_fingers == 1) {
849 synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y);
850 synaptics_report_semi_mt_slot(dev, 1, false, 0, 0);
852 synaptics_report_semi_mt_slot(dev, 0, false, 0, 0);
853 synaptics_report_semi_mt_slot(dev, 1, false, 0, 0);
857 static void synaptics_report_ext_buttons(struct psmouse *psmouse,
858 const struct synaptics_hw_state *hw)
860 struct input_dev *dev = psmouse->dev;
861 struct synaptics_data *priv = psmouse->private;
862 int ext_bits = (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) + 1) >> 1;
863 char buf[6] = { 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
866 if (!SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap))
869 /* Bug in FW 8.1, buttons are reported only when ExtBit is 1 */
870 if (SYN_ID_FULL(priv->identity) == 0x801 &&
871 !((psmouse->packet[0] ^ psmouse->packet[3]) & 0x02))
874 if (!SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10)) {
875 for (i = 0; i < ext_bits; i++) {
876 input_report_key(dev, BTN_0 + 2 * i,
877 hw->ext_buttons & (1 << i));
878 input_report_key(dev, BTN_1 + 2 * i,
879 hw->ext_buttons & (1 << (i + ext_bits)));
885 * This generation of touchpads has the trackstick buttons
886 * physically wired to the touchpad. Re-route them through
887 * the pass-through interface.
892 /* The trackstick expects at most 3 buttons */
893 priv->pt_buttons = SYN_CAP_EXT_BUTTON_STICK_L(hw->ext_buttons) |
894 SYN_CAP_EXT_BUTTON_STICK_R(hw->ext_buttons) << 1 |
895 SYN_CAP_EXT_BUTTON_STICK_M(hw->ext_buttons) << 2;
897 synaptics_pass_pt_packet(psmouse, priv->pt_port, buf);
900 static void synaptics_report_buttons(struct psmouse *psmouse,
901 const struct synaptics_hw_state *hw)
903 struct input_dev *dev = psmouse->dev;
904 struct synaptics_data *priv = psmouse->private;
906 input_report_key(dev, BTN_LEFT, hw->left);
907 input_report_key(dev, BTN_RIGHT, hw->right);
909 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
910 input_report_key(dev, BTN_MIDDLE, hw->middle);
912 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
913 input_report_key(dev, BTN_FORWARD, hw->up);
914 input_report_key(dev, BTN_BACK, hw->down);
917 synaptics_report_ext_buttons(psmouse, hw);
920 static void synaptics_report_mt_data(struct psmouse *psmouse,
921 const struct synaptics_hw_state *sgm,
924 struct input_dev *dev = psmouse->dev;
925 struct synaptics_data *priv = psmouse->private;
926 const struct synaptics_hw_state *hw[2] = { sgm, &priv->agm };
927 struct input_mt_pos pos[2];
928 int slot[2], nsemi, i;
930 nsemi = clamp_val(num_fingers, 0, 2);
932 for (i = 0; i < nsemi; i++) {
934 pos[i].y = synaptics_invert_y(hw[i]->y);
937 input_mt_assign_slots(dev, slot, pos, nsemi, DMAX * priv->x_res);
939 for (i = 0; i < nsemi; i++) {
940 input_mt_slot(dev, slot[i]);
941 input_mt_report_slot_state(dev, MT_TOOL_FINGER, true);
942 input_report_abs(dev, ABS_MT_POSITION_X, pos[i].x);
943 input_report_abs(dev, ABS_MT_POSITION_Y, pos[i].y);
944 input_report_abs(dev, ABS_MT_PRESSURE, hw[i]->z);
947 input_mt_drop_unused(dev);
949 /* Don't use active slot count to generate BTN_TOOL events. */
950 input_mt_report_pointer_emulation(dev, false);
952 /* Send the number of fingers reported by touchpad itself. */
953 input_mt_report_finger_count(dev, num_fingers);
955 synaptics_report_buttons(psmouse, sgm);
960 static void synaptics_image_sensor_process(struct psmouse *psmouse,
961 struct synaptics_hw_state *sgm)
963 struct synaptics_data *priv = psmouse->private;
967 * Update mt_state using the new finger count and current mt_state.
971 else if (sgm->w >= 4)
973 else if (sgm->w == 0)
975 else if (sgm->w == 1)
976 num_fingers = priv->agm_count ? priv->agm_count : 3;
980 /* Send resulting input events to user space */
981 synaptics_report_mt_data(psmouse, sgm, num_fingers);
985 * called for each full received packet from the touchpad
987 static void synaptics_process_packet(struct psmouse *psmouse)
989 struct input_dev *dev = psmouse->dev;
990 struct synaptics_data *priv = psmouse->private;
991 struct synaptics_hw_state hw;
995 if (synaptics_parse_hw_state(psmouse->packet, priv, &hw))
998 if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
999 synaptics_image_sensor_process(psmouse, &hw);
1004 priv->scroll += hw.scroll;
1006 while (priv->scroll >= 4) {
1007 input_report_key(dev, BTN_BACK, !hw.down);
1009 input_report_key(dev, BTN_BACK, hw.down);
1013 while (priv->scroll <= -4) {
1014 input_report_key(dev, BTN_FORWARD, !hw.up);
1016 input_report_key(dev, BTN_FORWARD, hw.up);
1023 if (hw.z > 0 && hw.x > 1) {
1026 if (SYN_CAP_EXTENDED(priv->capabilities)) {
1029 if (SYN_CAP_MULTIFINGER(priv->capabilities))
1030 num_fingers = hw.w + 2;
1033 if (SYN_MODEL_PEN(priv->model_id))
1034 ; /* Nothing, treat a pen as a single finger */
1037 if (SYN_CAP_PALMDETECT(priv->capabilities))
1038 finger_width = hw.w;
1047 if (cr48_profile_sensor) {
1048 synaptics_report_mt_data(psmouse, &hw, num_fingers);
1052 if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c))
1053 synaptics_report_semi_mt_data(dev, &hw, &priv->agm,
1057 * BTN_TOUCH has to be first as mousedev relies on it when doing
1058 * absolute -> relative conversion
1060 if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1);
1061 if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0);
1063 if (num_fingers > 0) {
1064 input_report_abs(dev, ABS_X, hw.x);
1065 input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y));
1067 input_report_abs(dev, ABS_PRESSURE, hw.z);
1069 if (SYN_CAP_PALMDETECT(priv->capabilities))
1070 input_report_abs(dev, ABS_TOOL_WIDTH, finger_width);
1072 input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1);
1073 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
1074 input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
1075 input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
1078 synaptics_report_buttons(psmouse, &hw);
1083 static int synaptics_validate_byte(struct psmouse *psmouse,
1084 int idx, unsigned char pkt_type)
1086 static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
1087 static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
1088 static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
1089 static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
1090 static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
1091 const char *packet = psmouse->packet;
1093 if (idx < 0 || idx > 4)
1099 case SYN_NEWABS_RELAXED:
1100 return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx];
1102 case SYN_NEWABS_STRICT:
1103 return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx];
1106 return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx];
1109 psmouse_err(psmouse, "unknown packet type %d\n", pkt_type);
1114 static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse)
1118 for (i = 0; i < 5; i++)
1119 if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) {
1120 psmouse_info(psmouse, "using relaxed packet validation\n");
1121 return SYN_NEWABS_RELAXED;
1124 return SYN_NEWABS_STRICT;
1127 static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
1129 struct synaptics_data *priv = psmouse->private;
1131 if (psmouse->pktcnt >= 6) { /* Full packet received */
1132 if (unlikely(priv->pkt_type == SYN_NEWABS))
1133 priv->pkt_type = synaptics_detect_pkt_type(psmouse);
1135 if (SYN_CAP_PASS_THROUGH(priv->capabilities) &&
1136 synaptics_is_pt_packet(psmouse->packet)) {
1138 synaptics_pass_pt_packet(psmouse, priv->pt_port,
1141 synaptics_process_packet(psmouse);
1143 return PSMOUSE_FULL_PACKET;
1146 return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ?
1147 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
1150 /*****************************************************************************
1151 * Driver initialization/cleanup functions
1152 ****************************************************************************/
1153 static void set_abs_position_params(struct input_dev *dev,
1154 struct synaptics_data *priv, int x_code,
1157 int x_min = priv->x_min ?: XMIN_NOMINAL;
1158 int x_max = priv->x_max ?: XMAX_NOMINAL;
1159 int y_min = priv->y_min ?: YMIN_NOMINAL;
1160 int y_max = priv->y_max ?: YMAX_NOMINAL;
1161 int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ?
1162 SYN_REDUCED_FILTER_FUZZ : 0;
1164 input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0);
1165 input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0);
1166 input_abs_set_res(dev, x_code, priv->x_res);
1167 input_abs_set_res(dev, y_code, priv->y_res);
1170 static void set_input_params(struct psmouse *psmouse,
1171 struct synaptics_data *priv)
1173 struct input_dev *dev = psmouse->dev;
1176 /* Things that apply to both modes */
1177 __set_bit(INPUT_PROP_POINTER, dev->propbit);
1178 __set_bit(EV_KEY, dev->evbit);
1179 __set_bit(BTN_LEFT, dev->keybit);
1180 __set_bit(BTN_RIGHT, dev->keybit);
1182 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
1183 __set_bit(BTN_MIDDLE, dev->keybit);
1185 if (!priv->absolute_mode) {
1187 __set_bit(EV_REL, dev->evbit);
1188 __set_bit(REL_X, dev->relbit);
1189 __set_bit(REL_Y, dev->relbit);
1194 __set_bit(EV_ABS, dev->evbit);
1195 set_abs_position_params(dev, priv, ABS_X, ABS_Y);
1196 input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
1198 if (cr48_profile_sensor)
1199 input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
1201 if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
1202 set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
1204 /* Image sensors can report per-contact pressure */
1205 input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
1206 input_mt_init_slots(dev, 2, INPUT_MT_POINTER | INPUT_MT_TRACK);
1208 /* Image sensors can signal 4 and 5 finger clicks */
1209 __set_bit(BTN_TOOL_QUADTAP, dev->keybit);
1210 __set_bit(BTN_TOOL_QUINTTAP, dev->keybit);
1211 } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) {
1212 set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
1215 * Profile sensor in CR-48 tracks contacts reasonably well,
1216 * other non-image sensors with AGM use semi-mt.
1218 input_mt_init_slots(dev, 2,
1220 (cr48_profile_sensor ?
1221 INPUT_MT_TRACK : INPUT_MT_SEMI_MT));
1224 if (SYN_CAP_PALMDETECT(priv->capabilities))
1225 input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0);
1227 __set_bit(BTN_TOUCH, dev->keybit);
1228 __set_bit(BTN_TOOL_FINGER, dev->keybit);
1230 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
1231 __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
1232 __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
1235 if (SYN_CAP_FOUR_BUTTON(priv->capabilities) ||
1236 SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
1237 __set_bit(BTN_FORWARD, dev->keybit);
1238 __set_bit(BTN_BACK, dev->keybit);
1241 if (!SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10))
1242 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
1243 __set_bit(BTN_0 + i, dev->keybit);
1245 __clear_bit(EV_REL, dev->evbit);
1246 __clear_bit(REL_X, dev->relbit);
1247 __clear_bit(REL_Y, dev->relbit);
1249 if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
1250 __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
1251 if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids) &&
1252 !SYN_CAP_EXT_BUTTONS_STICK(priv->ext_cap_10))
1253 __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit);
1254 /* Clickpads report only left button */
1255 __clear_bit(BTN_RIGHT, dev->keybit);
1256 __clear_bit(BTN_MIDDLE, dev->keybit);
1260 static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse,
1261 void *data, char *buf)
1263 struct synaptics_data *priv = psmouse->private;
1265 return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0');
1268 static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse,
1269 void *data, const char *buf,
1272 struct synaptics_data *priv = psmouse->private;
1276 err = kstrtouint(buf, 10, &value);
1283 if (value == priv->disable_gesture)
1286 priv->disable_gesture = value;
1288 priv->mode |= SYN_BIT_DISABLE_GESTURE;
1290 priv->mode &= ~SYN_BIT_DISABLE_GESTURE;
1292 if (synaptics_mode_cmd(psmouse, priv->mode))
1298 PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL,
1299 synaptics_show_disable_gesture,
1300 synaptics_set_disable_gesture);
1302 static void synaptics_disconnect(struct psmouse *psmouse)
1304 struct synaptics_data *priv = psmouse->private;
1306 if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity))
1307 device_remove_file(&psmouse->ps2dev.serio->dev,
1308 &psmouse_attr_disable_gesture.dattr);
1310 synaptics_reset(psmouse);
1312 psmouse->private = NULL;
1315 static int synaptics_reconnect(struct psmouse *psmouse)
1317 struct synaptics_data *priv = psmouse->private;
1318 struct synaptics_data old_priv = *priv;
1319 unsigned char param[2];
1324 psmouse_reset(psmouse);
1327 * On some boxes, right after resuming, the touchpad
1328 * needs some time to finish initializing (I assume
1329 * it needs time to calibrate) and start responding
1330 * to Synaptics-specific queries, so let's wait a
1335 ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID);
1336 error = synaptics_detect(psmouse, 0);
1337 } while (error && ++retry < 3);
1343 psmouse_dbg(psmouse, "reconnected after %d tries\n", retry);
1345 if (synaptics_query_hardware(psmouse)) {
1346 psmouse_err(psmouse, "Unable to query device.\n");
1350 if (synaptics_set_mode(psmouse)) {
1351 psmouse_err(psmouse, "Unable to initialize device.\n");
1355 if (old_priv.identity != priv->identity ||
1356 old_priv.model_id != priv->model_id ||
1357 old_priv.capabilities != priv->capabilities ||
1358 old_priv.ext_cap != priv->ext_cap) {
1359 psmouse_err(psmouse,
1360 "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n",
1361 old_priv.identity, priv->identity,
1362 old_priv.model_id, priv->model_id,
1363 old_priv.capabilities, priv->capabilities,
1364 old_priv.ext_cap, priv->ext_cap);
1371 static bool impaired_toshiba_kbc;
1373 static const struct dmi_system_id toshiba_dmi_table[] __initconst = {
1374 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
1376 /* Toshiba Satellite */
1378 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1379 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"),
1383 /* Toshiba Dynabook */
1385 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1386 DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"),
1390 /* Toshiba Portege M300 */
1392 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1393 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"),
1398 /* Toshiba Portege M300 */
1400 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1401 DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"),
1402 DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"),
1410 static bool broken_olpc_ec;
1412 static const struct dmi_system_id olpc_dmi_table[] __initconst = {
1413 #if defined(CONFIG_DMI) && defined(CONFIG_OLPC)
1415 /* OLPC XO-1 or XO-1.5 */
1417 DMI_MATCH(DMI_SYS_VENDOR, "OLPC"),
1418 DMI_MATCH(DMI_PRODUCT_NAME, "XO"),
1425 static const struct dmi_system_id __initconst cr48_dmi_table[] = {
1426 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
1428 /* Cr-48 Chromebook (Codename Mario) */
1430 DMI_MATCH(DMI_SYS_VENDOR, "IEC"),
1431 DMI_MATCH(DMI_PRODUCT_NAME, "Mario"),
1438 void __init synaptics_module_init(void)
1440 impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table);
1441 broken_olpc_ec = dmi_check_system(olpc_dmi_table);
1442 cr48_profile_sensor = dmi_check_system(cr48_dmi_table);
1445 static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode)
1447 struct synaptics_data *priv;
1451 * The OLPC XO has issues with Synaptics' absolute mode; the constant
1452 * packet spew overloads the EC such that key presses on the keyboard
1453 * are missed. Given that, don't even attempt to use Absolute mode.
1454 * Relative mode seems to work just fine.
1456 if (absolute_mode && broken_olpc_ec) {
1457 psmouse_info(psmouse,
1458 "OLPC XO detected, not enabling Synaptics protocol.\n");
1462 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL);
1466 psmouse_reset(psmouse);
1468 if (synaptics_query_hardware(psmouse)) {
1469 psmouse_err(psmouse, "Unable to query device.\n");
1473 priv->absolute_mode = absolute_mode;
1474 if (SYN_ID_DISGEST_SUPPORTED(priv->identity))
1475 priv->disable_gesture = true;
1478 * Unfortunately ForcePad capability is not exported over PS/2,
1479 * so we have to resort to checking PNP IDs.
1481 priv->is_forcepad = psmouse_matches_pnp_id(psmouse, forcepad_pnp_ids);
1483 if (synaptics_set_mode(psmouse)) {
1484 psmouse_err(psmouse, "Unable to initialize device.\n");
1488 priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
1490 psmouse_info(psmouse,
1491 "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n",
1492 SYN_ID_MODEL(priv->identity),
1493 SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
1495 priv->capabilities, priv->ext_cap, priv->ext_cap_0c,
1496 priv->ext_cap_10, priv->board_id, priv->firmware_id);
1498 set_input_params(psmouse, priv);
1501 * Encode touchpad model so that it can be used to set
1502 * input device->id.version and be visible to userspace.
1503 * Because version is __u16 we have to drop something.
1504 * Hardware info bits seem to be good candidates as they
1505 * are documented to be for Synaptics corp. internal use.
1507 psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) |
1508 (priv->model_id & 0x000000ff);
1510 if (absolute_mode) {
1511 psmouse->protocol_handler = synaptics_process_byte;
1512 psmouse->pktsize = 6;
1514 /* Relative mode follows standard PS/2 mouse protocol */
1515 psmouse->protocol_handler = psmouse_process_byte;
1516 psmouse->pktsize = 3;
1519 psmouse->set_rate = synaptics_set_rate;
1520 psmouse->disconnect = synaptics_disconnect;
1521 psmouse->reconnect = synaptics_reconnect;
1522 psmouse->cleanup = synaptics_reset;
1523 /* Synaptics can usually stay in sync without extra help */
1524 psmouse->resync_time = 0;
1526 if (SYN_CAP_PASS_THROUGH(priv->capabilities))
1527 synaptics_pt_create(psmouse);
1530 * Toshiba's KBC seems to have trouble handling data from
1531 * Synaptics at full rate. Switch to a lower rate (roughly
1532 * the same rate as a standard PS/2 mouse).
1534 if (psmouse->rate >= 80 && impaired_toshiba_kbc) {
1535 psmouse_info(psmouse,
1536 "Toshiba %s detected, limiting rate to 40pps.\n",
1537 dmi_get_system_info(DMI_PRODUCT_NAME));
1541 if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) {
1542 err = device_create_file(&psmouse->ps2dev.serio->dev,
1543 &psmouse_attr_disable_gesture.dattr);
1545 psmouse_err(psmouse,
1546 "Failed to create disable_gesture attribute (%d)",
1559 int synaptics_init(struct psmouse *psmouse)
1561 return __synaptics_init(psmouse, true);
1564 int synaptics_init_relative(struct psmouse *psmouse)
1566 return __synaptics_init(psmouse, false);
1569 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */
1571 void __init synaptics_module_init(void)
1575 int synaptics_init(struct psmouse *psmouse)
1580 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */