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 struct min_max_quirk
{
127 const char * const *pnp_ids
;
128 int x_min
, x_max
, y_min
, y_max
;
131 static const struct min_max_quirk min_max_pnpid_table
[] = {
133 (const char * const []){"LEN0033", NULL
},
134 1024, 5052, 2258, 4832
137 (const char * const []){"LEN0035", "LEN0042", NULL
},
138 1232, 5710, 1156, 4696
141 (const char * const []){"LEN0034", "LEN0036", "LEN0037",
142 "LEN0039", "LEN2002", "LEN2004",
144 1024, 5112, 2024, 4832
147 (const char * const []){"LEN2001", NULL
},
148 1024, 5022, 2508, 4832
151 (const char * const []){"LEN2006", NULL
},
152 1264, 5675, 1171, 4688
157 /* This list has been kindly provided by Synaptics. */
158 static const char * const topbuttonpad_pnp_ids
[] = {
168 "LEN0033", /* Helix */
169 "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */
170 "LEN0035", /* X240 */
171 "LEN0036", /* T440 */
172 "LEN0037", /* X1 Carbon 2nd */
174 "LEN0039", /* T440s */
176 "LEN0042", /* Yoga */
183 "LEN2001", /* Edge E431 */
184 "LEN2002", /* Edge E531 */
186 "LEN2004", /* L440 */
197 /* This list has been kindly provided by Synaptics. */
198 static const char * const forcepad_pnp_ids
[] = {
204 /*****************************************************************************
205 * Synaptics communications functions
206 ****************************************************************************/
209 * Synaptics touchpads report the y coordinate from bottom to top, which is
210 * opposite from what userspace expects.
211 * This function is used to invert y before reporting.
213 static int synaptics_invert_y(int y
)
215 return YMAX_NOMINAL
+ YMIN_NOMINAL
- y
;
219 * Send a command to the synpatics touchpad by special commands
221 static int synaptics_send_cmd(struct psmouse
*psmouse
, unsigned char c
, unsigned char *param
)
223 if (psmouse_sliced_command(psmouse
, c
))
225 if (ps2_command(&psmouse
->ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
231 * Read the model-id bytes from the touchpad
232 * see also SYN_MODEL_* macros
234 static int synaptics_model_id(struct psmouse
*psmouse
)
236 struct synaptics_data
*priv
= psmouse
->private;
239 if (synaptics_send_cmd(psmouse
, SYN_QUE_MODEL
, mi
))
241 priv
->model_id
= (mi
[0]<<16) | (mi
[1]<<8) | mi
[2];
246 * Read the board id from the touchpad
247 * The board id is encoded in the "QUERY MODES" response
249 static int synaptics_board_id(struct psmouse
*psmouse
)
251 struct synaptics_data
*priv
= psmouse
->private;
252 unsigned char bid
[3];
254 if (synaptics_send_cmd(psmouse
, SYN_QUE_MODES
, bid
))
256 priv
->board_id
= ((bid
[0] & 0xfc) << 6) | bid
[1];
261 * Read the firmware id from the touchpad
263 static int synaptics_firmware_id(struct psmouse
*psmouse
)
265 struct synaptics_data
*priv
= psmouse
->private;
266 unsigned char fwid
[3];
268 if (synaptics_send_cmd(psmouse
, SYN_QUE_FIRMWARE_ID
, fwid
))
270 priv
->firmware_id
= (fwid
[0] << 16) | (fwid
[1] << 8) | fwid
[2];
275 * Read the capability-bits from the touchpad
276 * see also the SYN_CAP_* macros
278 static int synaptics_capability(struct psmouse
*psmouse
)
280 struct synaptics_data
*priv
= psmouse
->private;
281 unsigned char cap
[3];
283 if (synaptics_send_cmd(psmouse
, SYN_QUE_CAPABILITIES
, cap
))
285 priv
->capabilities
= (cap
[0] << 16) | (cap
[1] << 8) | cap
[2];
286 priv
->ext_cap
= priv
->ext_cap_0c
= 0;
289 * Older firmwares had submodel ID fixed to 0x47
291 if (SYN_ID_FULL(priv
->identity
) < 0x705 &&
292 SYN_CAP_SUBMODEL_ID(priv
->capabilities
) != 0x47) {
297 * Unless capExtended is set the rest of the flags should be ignored
299 if (!SYN_CAP_EXTENDED(priv
->capabilities
))
300 priv
->capabilities
= 0;
302 if (SYN_EXT_CAP_REQUESTS(priv
->capabilities
) >= 1) {
303 if (synaptics_send_cmd(psmouse
, SYN_QUE_EXT_CAPAB
, cap
)) {
304 psmouse_warn(psmouse
,
305 "device claims to have extended capabilities, but I'm not able to read them.\n");
307 priv
->ext_cap
= (cap
[0] << 16) | (cap
[1] << 8) | cap
[2];
310 * if nExtBtn is greater than 8 it should be considered
311 * invalid and treated as 0
313 if (SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
) > 8)
314 priv
->ext_cap
&= 0xff0fff;
318 if (SYN_EXT_CAP_REQUESTS(priv
->capabilities
) >= 4) {
319 if (synaptics_send_cmd(psmouse
, SYN_QUE_EXT_CAPAB_0C
, cap
)) {
320 psmouse_warn(psmouse
,
321 "device claims to have extended capability 0x0c, but I'm not able to read it.\n");
323 priv
->ext_cap_0c
= (cap
[0] << 16) | (cap
[1] << 8) | cap
[2];
332 * See also the SYN_ID_* macros
334 static int synaptics_identify(struct psmouse
*psmouse
)
336 struct synaptics_data
*priv
= psmouse
->private;
339 if (synaptics_send_cmd(psmouse
, SYN_QUE_IDENTIFY
, id
))
341 priv
->identity
= (id
[0]<<16) | (id
[1]<<8) | id
[2];
342 if (SYN_ID_IS_SYNAPTICS(priv
->identity
))
348 * Read touchpad resolution and maximum reported coordinates
349 * Resolution is left zero if touchpad does not support the query
352 static int synaptics_resolution(struct psmouse
*psmouse
)
354 struct synaptics_data
*priv
= psmouse
->private;
355 unsigned char resp
[3];
358 if (SYN_ID_MAJOR(priv
->identity
) < 4)
361 if (synaptics_send_cmd(psmouse
, SYN_QUE_RESOLUTION
, resp
) == 0) {
362 if (resp
[0] != 0 && (resp
[1] & 0x80) && resp
[2] != 0) {
363 priv
->x_res
= resp
[0]; /* x resolution in units/mm */
364 priv
->y_res
= resp
[2]; /* y resolution in units/mm */
368 for (i
= 0; min_max_pnpid_table
[i
].pnp_ids
; i
++) {
369 if (psmouse_matches_pnp_id(psmouse
,
370 min_max_pnpid_table
[i
].pnp_ids
)) {
371 priv
->x_min
= min_max_pnpid_table
[i
].x_min
;
372 priv
->x_max
= min_max_pnpid_table
[i
].x_max
;
373 priv
->y_min
= min_max_pnpid_table
[i
].y_min
;
374 priv
->y_max
= min_max_pnpid_table
[i
].y_max
;
379 if (SYN_EXT_CAP_REQUESTS(priv
->capabilities
) >= 5 &&
380 SYN_CAP_MAX_DIMENSIONS(priv
->ext_cap_0c
)) {
381 if (synaptics_send_cmd(psmouse
, SYN_QUE_EXT_MAX_COORDS
, resp
)) {
382 psmouse_warn(psmouse
,
383 "device claims to have max coordinates query, but I'm not able to read it.\n");
385 priv
->x_max
= (resp
[0] << 5) | ((resp
[1] & 0x0f) << 1);
386 priv
->y_max
= (resp
[2] << 5) | ((resp
[1] & 0xf0) >> 3);
390 if (SYN_EXT_CAP_REQUESTS(priv
->capabilities
) >= 7 &&
391 SYN_CAP_MIN_DIMENSIONS(priv
->ext_cap_0c
)) {
392 if (synaptics_send_cmd(psmouse
, SYN_QUE_EXT_MIN_COORDS
, resp
)) {
393 psmouse_warn(psmouse
,
394 "device claims to have min coordinates query, but I'm not able to read it.\n");
396 priv
->x_min
= (resp
[0] << 5) | ((resp
[1] & 0x0f) << 1);
397 priv
->y_min
= (resp
[2] << 5) | ((resp
[1] & 0xf0) >> 3);
404 static int synaptics_query_hardware(struct psmouse
*psmouse
)
406 if (synaptics_identify(psmouse
))
408 if (synaptics_model_id(psmouse
))
410 if (synaptics_firmware_id(psmouse
))
412 if (synaptics_board_id(psmouse
))
414 if (synaptics_capability(psmouse
))
416 if (synaptics_resolution(psmouse
))
422 static int synaptics_set_advanced_gesture_mode(struct psmouse
*psmouse
)
424 static unsigned char param
= 0xc8;
425 struct synaptics_data
*priv
= psmouse
->private;
427 if (!(SYN_CAP_ADV_GESTURE(priv
->ext_cap_0c
) ||
428 SYN_CAP_IMAGE_SENSOR(priv
->ext_cap_0c
)))
431 if (psmouse_sliced_command(psmouse
, SYN_QUE_MODEL
))
434 if (ps2_command(&psmouse
->ps2dev
, ¶m
, PSMOUSE_CMD_SETRATE
))
437 /* Advanced gesture mode also sends multi finger data */
438 priv
->capabilities
|= BIT(1);
443 static int synaptics_set_mode(struct psmouse
*psmouse
)
445 struct synaptics_data
*priv
= psmouse
->private;
448 if (priv
->absolute_mode
)
449 priv
->mode
|= SYN_BIT_ABSOLUTE_MODE
;
450 if (priv
->disable_gesture
)
451 priv
->mode
|= SYN_BIT_DISABLE_GESTURE
;
452 if (psmouse
->rate
>= 80)
453 priv
->mode
|= SYN_BIT_HIGH_RATE
;
454 if (SYN_CAP_EXTENDED(priv
->capabilities
))
455 priv
->mode
|= SYN_BIT_W_MODE
;
457 if (synaptics_mode_cmd(psmouse
, priv
->mode
))
460 if (priv
->absolute_mode
&&
461 synaptics_set_advanced_gesture_mode(psmouse
)) {
462 psmouse_err(psmouse
, "Advanced gesture mode init failed.\n");
469 static void synaptics_set_rate(struct psmouse
*psmouse
, unsigned int rate
)
471 struct synaptics_data
*priv
= psmouse
->private;
474 priv
->mode
|= SYN_BIT_HIGH_RATE
;
477 priv
->mode
&= ~SYN_BIT_HIGH_RATE
;
481 synaptics_mode_cmd(psmouse
, priv
->mode
);
484 /*****************************************************************************
485 * Synaptics pass-through PS/2 port support
486 ****************************************************************************/
487 static int synaptics_pt_write(struct serio
*serio
, unsigned char c
)
489 struct psmouse
*parent
= serio_get_drvdata(serio
->parent
);
490 char rate_param
= SYN_PS_CLIENT_CMD
; /* indicates that we want pass-through port */
492 if (psmouse_sliced_command(parent
, c
))
494 if (ps2_command(&parent
->ps2dev
, &rate_param
, PSMOUSE_CMD_SETRATE
))
499 static int synaptics_pt_start(struct serio
*serio
)
501 struct psmouse
*parent
= serio_get_drvdata(serio
->parent
);
502 struct synaptics_data
*priv
= parent
->private;
504 serio_pause_rx(parent
->ps2dev
.serio
);
505 priv
->pt_port
= serio
;
506 serio_continue_rx(parent
->ps2dev
.serio
);
511 static void synaptics_pt_stop(struct serio
*serio
)
513 struct psmouse
*parent
= serio_get_drvdata(serio
->parent
);
514 struct synaptics_data
*priv
= parent
->private;
516 serio_pause_rx(parent
->ps2dev
.serio
);
517 priv
->pt_port
= NULL
;
518 serio_continue_rx(parent
->ps2dev
.serio
);
521 static int synaptics_is_pt_packet(unsigned char *buf
)
523 return (buf
[0] & 0xFC) == 0x84 && (buf
[3] & 0xCC) == 0xC4;
526 static void synaptics_pass_pt_packet(struct serio
*ptport
, unsigned char *packet
)
528 struct psmouse
*child
= serio_get_drvdata(ptport
);
530 if (child
&& child
->state
== PSMOUSE_ACTIVATED
) {
531 serio_interrupt(ptport
, packet
[1], 0);
532 serio_interrupt(ptport
, packet
[4], 0);
533 serio_interrupt(ptport
, packet
[5], 0);
534 if (child
->pktsize
== 4)
535 serio_interrupt(ptport
, packet
[2], 0);
537 serio_interrupt(ptport
, packet
[1], 0);
540 static void synaptics_pt_activate(struct psmouse
*psmouse
)
542 struct synaptics_data
*priv
= psmouse
->private;
543 struct psmouse
*child
= serio_get_drvdata(priv
->pt_port
);
545 /* adjust the touchpad to child's choice of protocol */
547 if (child
->pktsize
== 4)
548 priv
->mode
|= SYN_BIT_FOUR_BYTE_CLIENT
;
550 priv
->mode
&= ~SYN_BIT_FOUR_BYTE_CLIENT
;
552 if (synaptics_mode_cmd(psmouse
, priv
->mode
))
553 psmouse_warn(psmouse
,
554 "failed to switch guest protocol\n");
558 static void synaptics_pt_create(struct psmouse
*psmouse
)
562 serio
= kzalloc(sizeof(struct serio
), GFP_KERNEL
);
565 "not enough memory for pass-through port\n");
569 serio
->id
.type
= SERIO_PS_PSTHRU
;
570 strlcpy(serio
->name
, "Synaptics pass-through", sizeof(serio
->name
));
571 strlcpy(serio
->phys
, "synaptics-pt/serio0", sizeof(serio
->name
));
572 serio
->write
= synaptics_pt_write
;
573 serio
->start
= synaptics_pt_start
;
574 serio
->stop
= synaptics_pt_stop
;
575 serio
->parent
= psmouse
->ps2dev
.serio
;
577 psmouse
->pt_activate
= synaptics_pt_activate
;
579 psmouse_info(psmouse
, "serio: %s port at %s\n",
580 serio
->name
, psmouse
->phys
);
581 serio_register_port(serio
);
584 /*****************************************************************************
585 * Functions to interpret the absolute mode packets
586 ****************************************************************************/
588 static void synaptics_parse_agm(const unsigned char buf
[],
589 struct synaptics_data
*priv
,
590 struct synaptics_hw_state
*hw
)
592 struct synaptics_hw_state
*agm
= &priv
->agm
;
595 agm_packet_type
= (buf
[5] & 0x30) >> 4;
596 switch (agm_packet_type
) {
598 /* Gesture packet: (x, y, z) half resolution */
600 agm
->x
= (((buf
[4] & 0x0f) << 8) | buf
[1]) << 1;
601 agm
->y
= (((buf
[4] & 0xf0) << 4) | buf
[2]) << 1;
602 agm
->z
= ((buf
[3] & 0x30) | (buf
[5] & 0x0f)) << 1;
606 /* AGM-CONTACT packet: we are only interested in the count */
607 priv
->agm_count
= buf
[1];
615 static int synaptics_parse_hw_state(const unsigned char buf
[],
616 struct synaptics_data
*priv
,
617 struct synaptics_hw_state
*hw
)
619 memset(hw
, 0, sizeof(struct synaptics_hw_state
));
621 if (SYN_MODEL_NEWABS(priv
->model_id
)) {
622 hw
->w
= (((buf
[0] & 0x30) >> 2) |
623 ((buf
[0] & 0x04) >> 1) |
624 ((buf
[3] & 0x04) >> 2));
626 if ((SYN_CAP_ADV_GESTURE(priv
->ext_cap_0c
) ||
627 SYN_CAP_IMAGE_SENSOR(priv
->ext_cap_0c
)) &&
629 synaptics_parse_agm(buf
, priv
, hw
);
633 hw
->x
= (((buf
[3] & 0x10) << 8) |
634 ((buf
[1] & 0x0f) << 8) |
636 hw
->y
= (((buf
[3] & 0x20) << 7) |
637 ((buf
[1] & 0xf0) << 4) |
641 hw
->left
= (buf
[0] & 0x01) ? 1 : 0;
642 hw
->right
= (buf
[0] & 0x02) ? 1 : 0;
644 if (priv
->is_forcepad
) {
646 * ForcePads, like Clickpads, use middle button
647 * bits to report primary button clicks.
648 * Unfortunately they report primary button not
649 * only when user presses on the pad above certain
650 * threshold, but also when there are more than one
651 * finger on the touchpad, which interferes with
652 * out multi-finger gestures.
656 priv
->press
= priv
->report_press
= false;
657 } else if (hw
->w
>= 4 && ((buf
[0] ^ buf
[3]) & 0x01)) {
659 * Single-finger touch with pressure above
660 * the threshold. If pressure stays long
661 * enough, we'll start reporting primary
662 * button. We rely on the device continuing
663 * sending data even if finger does not
667 priv
->press_start
= jiffies
;
669 } else if (time_after(jiffies
,
671 msecs_to_jiffies(50))) {
672 priv
->report_press
= true;
678 hw
->left
= priv
->report_press
;
680 } else if (SYN_CAP_CLICKPAD(priv
->ext_cap_0c
)) {
682 * Clickpad's button is transmitted as middle button,
683 * however, since it is primary button, we will report
686 hw
->left
= ((buf
[0] ^ buf
[3]) & 0x01) ? 1 : 0;
688 } else if (SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
)) {
689 hw
->middle
= ((buf
[0] ^ buf
[3]) & 0x01) ? 1 : 0;
691 hw
->scroll
= (signed char)(buf
[1]);
694 if (SYN_CAP_FOUR_BUTTON(priv
->capabilities
)) {
695 hw
->up
= ((buf
[0] ^ buf
[3]) & 0x01) ? 1 : 0;
696 hw
->down
= ((buf
[0] ^ buf
[3]) & 0x02) ? 1 : 0;
699 if (SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
) &&
700 ((buf
[0] ^ buf
[3]) & 0x02)) {
701 switch (SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
) & ~0x01) {
704 * if nExtBtn is greater than 8 it should be
705 * considered invalid and treated as 0
709 hw
->ext_buttons
|= ((buf
[5] & 0x08)) ? 0x80 : 0;
710 hw
->ext_buttons
|= ((buf
[4] & 0x08)) ? 0x40 : 0;
712 hw
->ext_buttons
|= ((buf
[5] & 0x04)) ? 0x20 : 0;
713 hw
->ext_buttons
|= ((buf
[4] & 0x04)) ? 0x10 : 0;
715 hw
->ext_buttons
|= ((buf
[5] & 0x02)) ? 0x08 : 0;
716 hw
->ext_buttons
|= ((buf
[4] & 0x02)) ? 0x04 : 0;
718 hw
->ext_buttons
|= ((buf
[5] & 0x01)) ? 0x02 : 0;
719 hw
->ext_buttons
|= ((buf
[4] & 0x01)) ? 0x01 : 0;
723 hw
->x
= (((buf
[1] & 0x1f) << 8) | buf
[2]);
724 hw
->y
= (((buf
[4] & 0x1f) << 8) | buf
[5]);
726 hw
->z
= (((buf
[0] & 0x30) << 2) | (buf
[3] & 0x3F));
727 hw
->w
= (((buf
[1] & 0x80) >> 4) | ((buf
[0] & 0x04) >> 1));
729 hw
->left
= (buf
[0] & 0x01) ? 1 : 0;
730 hw
->right
= (buf
[0] & 0x02) ? 1 : 0;
734 * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE
735 * is used by some firmware to indicate a finger at the edge of
736 * the touchpad whose precise position cannot be determined, so
737 * convert these values to the maximum axis value.
739 if (hw
->x
> X_MAX_POSITIVE
)
740 hw
->x
-= 1 << ABS_POS_BITS
;
741 else if (hw
->x
== X_MAX_POSITIVE
)
744 if (hw
->y
> Y_MAX_POSITIVE
)
745 hw
->y
-= 1 << ABS_POS_BITS
;
746 else if (hw
->y
== Y_MAX_POSITIVE
)
752 static void synaptics_report_semi_mt_slot(struct input_dev
*dev
, int slot
,
753 bool active
, int x
, int y
)
755 input_mt_slot(dev
, slot
);
756 input_mt_report_slot_state(dev
, MT_TOOL_FINGER
, active
);
758 input_report_abs(dev
, ABS_MT_POSITION_X
, x
);
759 input_report_abs(dev
, ABS_MT_POSITION_Y
, synaptics_invert_y(y
));
763 static void synaptics_report_semi_mt_data(struct input_dev
*dev
,
764 const struct synaptics_hw_state
*a
,
765 const struct synaptics_hw_state
*b
,
768 if (num_fingers
>= 2) {
769 synaptics_report_semi_mt_slot(dev
, 0, true, min(a
->x
, b
->x
),
771 synaptics_report_semi_mt_slot(dev
, 1, true, max(a
->x
, b
->x
),
773 } else if (num_fingers
== 1) {
774 synaptics_report_semi_mt_slot(dev
, 0, true, a
->x
, a
->y
);
775 synaptics_report_semi_mt_slot(dev
, 1, false, 0, 0);
777 synaptics_report_semi_mt_slot(dev
, 0, false, 0, 0);
778 synaptics_report_semi_mt_slot(dev
, 1, false, 0, 0);
782 static void synaptics_report_buttons(struct psmouse
*psmouse
,
783 const struct synaptics_hw_state
*hw
)
785 struct input_dev
*dev
= psmouse
->dev
;
786 struct synaptics_data
*priv
= psmouse
->private;
789 input_report_key(dev
, BTN_LEFT
, hw
->left
);
790 input_report_key(dev
, BTN_RIGHT
, hw
->right
);
792 if (SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
))
793 input_report_key(dev
, BTN_MIDDLE
, hw
->middle
);
795 if (SYN_CAP_FOUR_BUTTON(priv
->capabilities
)) {
796 input_report_key(dev
, BTN_FORWARD
, hw
->up
);
797 input_report_key(dev
, BTN_BACK
, hw
->down
);
800 for (i
= 0; i
< SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
); i
++)
801 input_report_key(dev
, BTN_0
+ i
, hw
->ext_buttons
& (1 << i
));
804 static void synaptics_report_mt_data(struct psmouse
*psmouse
,
805 const struct synaptics_hw_state
*sgm
,
808 struct input_dev
*dev
= psmouse
->dev
;
809 struct synaptics_data
*priv
= psmouse
->private;
810 const struct synaptics_hw_state
*hw
[2] = { sgm
, &priv
->agm
};
811 struct input_mt_pos pos
[2];
812 int slot
[2], nsemi
, i
;
814 nsemi
= clamp_val(num_fingers
, 0, 2);
816 for (i
= 0; i
< nsemi
; i
++) {
818 pos
[i
].y
= synaptics_invert_y(hw
[i
]->y
);
821 input_mt_assign_slots(dev
, slot
, pos
, nsemi
, DMAX
* priv
->x_res
);
823 for (i
= 0; i
< nsemi
; i
++) {
824 input_mt_slot(dev
, slot
[i
]);
825 input_mt_report_slot_state(dev
, MT_TOOL_FINGER
, true);
826 input_report_abs(dev
, ABS_MT_POSITION_X
, pos
[i
].x
);
827 input_report_abs(dev
, ABS_MT_POSITION_Y
, pos
[i
].y
);
828 input_report_abs(dev
, ABS_MT_PRESSURE
, hw
[i
]->z
);
831 input_mt_drop_unused(dev
);
833 /* Don't use active slot count to generate BTN_TOOL events. */
834 input_mt_report_pointer_emulation(dev
, false);
836 /* Send the number of fingers reported by touchpad itself. */
837 input_mt_report_finger_count(dev
, num_fingers
);
839 synaptics_report_buttons(psmouse
, sgm
);
844 static void synaptics_image_sensor_process(struct psmouse
*psmouse
,
845 struct synaptics_hw_state
*sgm
)
847 struct synaptics_data
*priv
= psmouse
->private;
851 * Update mt_state using the new finger count and current mt_state.
855 else if (sgm
->w
>= 4)
857 else if (sgm
->w
== 0)
859 else if (sgm
->w
== 1)
860 num_fingers
= priv
->agm_count
? priv
->agm_count
: 3;
864 /* Send resulting input events to user space */
865 synaptics_report_mt_data(psmouse
, sgm
, num_fingers
);
869 * called for each full received packet from the touchpad
871 static void synaptics_process_packet(struct psmouse
*psmouse
)
873 struct input_dev
*dev
= psmouse
->dev
;
874 struct synaptics_data
*priv
= psmouse
->private;
875 struct synaptics_hw_state hw
;
879 if (synaptics_parse_hw_state(psmouse
->packet
, priv
, &hw
))
882 if (SYN_CAP_IMAGE_SENSOR(priv
->ext_cap_0c
)) {
883 synaptics_image_sensor_process(psmouse
, &hw
);
888 priv
->scroll
+= hw
.scroll
;
890 while (priv
->scroll
>= 4) {
891 input_report_key(dev
, BTN_BACK
, !hw
.down
);
893 input_report_key(dev
, BTN_BACK
, hw
.down
);
897 while (priv
->scroll
<= -4) {
898 input_report_key(dev
, BTN_FORWARD
, !hw
.up
);
900 input_report_key(dev
, BTN_FORWARD
, hw
.up
);
907 if (hw
.z
> 0 && hw
.x
> 1) {
910 if (SYN_CAP_EXTENDED(priv
->capabilities
)) {
913 if (SYN_CAP_MULTIFINGER(priv
->capabilities
))
914 num_fingers
= hw
.w
+ 2;
917 if (SYN_MODEL_PEN(priv
->model_id
))
918 ; /* Nothing, treat a pen as a single finger */
921 if (SYN_CAP_PALMDETECT(priv
->capabilities
))
931 if (cr48_profile_sensor
) {
932 synaptics_report_mt_data(psmouse
, &hw
, num_fingers
);
936 if (SYN_CAP_ADV_GESTURE(priv
->ext_cap_0c
))
937 synaptics_report_semi_mt_data(dev
, &hw
, &priv
->agm
,
941 * BTN_TOUCH has to be first as mousedev relies on it when doing
942 * absolute -> relative conversion
944 if (hw
.z
> 30) input_report_key(dev
, BTN_TOUCH
, 1);
945 if (hw
.z
< 25) input_report_key(dev
, BTN_TOUCH
, 0);
947 if (num_fingers
> 0) {
948 input_report_abs(dev
, ABS_X
, hw
.x
);
949 input_report_abs(dev
, ABS_Y
, synaptics_invert_y(hw
.y
));
951 input_report_abs(dev
, ABS_PRESSURE
, hw
.z
);
953 if (SYN_CAP_PALMDETECT(priv
->capabilities
))
954 input_report_abs(dev
, ABS_TOOL_WIDTH
, finger_width
);
956 input_report_key(dev
, BTN_TOOL_FINGER
, num_fingers
== 1);
957 if (SYN_CAP_MULTIFINGER(priv
->capabilities
)) {
958 input_report_key(dev
, BTN_TOOL_DOUBLETAP
, num_fingers
== 2);
959 input_report_key(dev
, BTN_TOOL_TRIPLETAP
, num_fingers
== 3);
962 synaptics_report_buttons(psmouse
, &hw
);
967 static int synaptics_validate_byte(struct psmouse
*psmouse
,
968 int idx
, unsigned char pkt_type
)
970 static const unsigned char newabs_mask
[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
971 static const unsigned char newabs_rel_mask
[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
972 static const unsigned char newabs_rslt
[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
973 static const unsigned char oldabs_mask
[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
974 static const unsigned char oldabs_rslt
[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
975 const char *packet
= psmouse
->packet
;
977 if (idx
< 0 || idx
> 4)
983 case SYN_NEWABS_RELAXED
:
984 return (packet
[idx
] & newabs_rel_mask
[idx
]) == newabs_rslt
[idx
];
986 case SYN_NEWABS_STRICT
:
987 return (packet
[idx
] & newabs_mask
[idx
]) == newabs_rslt
[idx
];
990 return (packet
[idx
] & oldabs_mask
[idx
]) == oldabs_rslt
[idx
];
993 psmouse_err(psmouse
, "unknown packet type %d\n", pkt_type
);
998 static unsigned char synaptics_detect_pkt_type(struct psmouse
*psmouse
)
1002 for (i
= 0; i
< 5; i
++)
1003 if (!synaptics_validate_byte(psmouse
, i
, SYN_NEWABS_STRICT
)) {
1004 psmouse_info(psmouse
, "using relaxed packet validation\n");
1005 return SYN_NEWABS_RELAXED
;
1008 return SYN_NEWABS_STRICT
;
1011 static psmouse_ret_t
synaptics_process_byte(struct psmouse
*psmouse
)
1013 struct synaptics_data
*priv
= psmouse
->private;
1015 if (psmouse
->pktcnt
>= 6) { /* Full packet received */
1016 if (unlikely(priv
->pkt_type
== SYN_NEWABS
))
1017 priv
->pkt_type
= synaptics_detect_pkt_type(psmouse
);
1019 if (SYN_CAP_PASS_THROUGH(priv
->capabilities
) &&
1020 synaptics_is_pt_packet(psmouse
->packet
)) {
1022 synaptics_pass_pt_packet(priv
->pt_port
, psmouse
->packet
);
1024 synaptics_process_packet(psmouse
);
1026 return PSMOUSE_FULL_PACKET
;
1029 return synaptics_validate_byte(psmouse
, psmouse
->pktcnt
- 1, priv
->pkt_type
) ?
1030 PSMOUSE_GOOD_DATA
: PSMOUSE_BAD_DATA
;
1033 /*****************************************************************************
1034 * Driver initialization/cleanup functions
1035 ****************************************************************************/
1036 static void set_abs_position_params(struct input_dev
*dev
,
1037 struct synaptics_data
*priv
, int x_code
,
1040 int x_min
= priv
->x_min
?: XMIN_NOMINAL
;
1041 int x_max
= priv
->x_max
?: XMAX_NOMINAL
;
1042 int y_min
= priv
->y_min
?: YMIN_NOMINAL
;
1043 int y_max
= priv
->y_max
?: YMAX_NOMINAL
;
1044 int fuzz
= SYN_CAP_REDUCED_FILTERING(priv
->ext_cap_0c
) ?
1045 SYN_REDUCED_FILTER_FUZZ
: 0;
1047 input_set_abs_params(dev
, x_code
, x_min
, x_max
, fuzz
, 0);
1048 input_set_abs_params(dev
, y_code
, y_min
, y_max
, fuzz
, 0);
1049 input_abs_set_res(dev
, x_code
, priv
->x_res
);
1050 input_abs_set_res(dev
, y_code
, priv
->y_res
);
1053 static void set_input_params(struct psmouse
*psmouse
,
1054 struct synaptics_data
*priv
)
1056 struct input_dev
*dev
= psmouse
->dev
;
1059 /* Things that apply to both modes */
1060 __set_bit(INPUT_PROP_POINTER
, dev
->propbit
);
1061 __set_bit(EV_KEY
, dev
->evbit
);
1062 __set_bit(BTN_LEFT
, dev
->keybit
);
1063 __set_bit(BTN_RIGHT
, dev
->keybit
);
1065 if (SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
))
1066 __set_bit(BTN_MIDDLE
, dev
->keybit
);
1068 if (!priv
->absolute_mode
) {
1070 __set_bit(EV_REL
, dev
->evbit
);
1071 __set_bit(REL_X
, dev
->relbit
);
1072 __set_bit(REL_Y
, dev
->relbit
);
1077 __set_bit(EV_ABS
, dev
->evbit
);
1078 set_abs_position_params(dev
, priv
, ABS_X
, ABS_Y
);
1079 input_set_abs_params(dev
, ABS_PRESSURE
, 0, 255, 0, 0);
1081 if (cr48_profile_sensor
)
1082 input_set_abs_params(dev
, ABS_MT_PRESSURE
, 0, 255, 0, 0);
1084 if (SYN_CAP_IMAGE_SENSOR(priv
->ext_cap_0c
)) {
1085 set_abs_position_params(dev
, priv
, ABS_MT_POSITION_X
,
1087 /* Image sensors can report per-contact pressure */
1088 input_set_abs_params(dev
, ABS_MT_PRESSURE
, 0, 255, 0, 0);
1089 input_mt_init_slots(dev
, 2, INPUT_MT_POINTER
| INPUT_MT_TRACK
);
1091 /* Image sensors can signal 4 and 5 finger clicks */
1092 __set_bit(BTN_TOOL_QUADTAP
, dev
->keybit
);
1093 __set_bit(BTN_TOOL_QUINTTAP
, dev
->keybit
);
1094 } else if (SYN_CAP_ADV_GESTURE(priv
->ext_cap_0c
)) {
1095 set_abs_position_params(dev
, priv
, ABS_MT_POSITION_X
,
1098 * Profile sensor in CR-48 tracks contacts reasonably well,
1099 * other non-image sensors with AGM use semi-mt.
1101 input_mt_init_slots(dev
, 2,
1103 (cr48_profile_sensor
?
1104 INPUT_MT_TRACK
: INPUT_MT_SEMI_MT
));
1107 if (SYN_CAP_PALMDETECT(priv
->capabilities
))
1108 input_set_abs_params(dev
, ABS_TOOL_WIDTH
, 0, 15, 0, 0);
1110 __set_bit(BTN_TOUCH
, dev
->keybit
);
1111 __set_bit(BTN_TOOL_FINGER
, dev
->keybit
);
1113 if (SYN_CAP_MULTIFINGER(priv
->capabilities
)) {
1114 __set_bit(BTN_TOOL_DOUBLETAP
, dev
->keybit
);
1115 __set_bit(BTN_TOOL_TRIPLETAP
, dev
->keybit
);
1118 if (SYN_CAP_FOUR_BUTTON(priv
->capabilities
) ||
1119 SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
)) {
1120 __set_bit(BTN_FORWARD
, dev
->keybit
);
1121 __set_bit(BTN_BACK
, dev
->keybit
);
1124 for (i
= 0; i
< SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
); i
++)
1125 __set_bit(BTN_0
+ i
, dev
->keybit
);
1127 __clear_bit(EV_REL
, dev
->evbit
);
1128 __clear_bit(REL_X
, dev
->relbit
);
1129 __clear_bit(REL_Y
, dev
->relbit
);
1131 if (SYN_CAP_CLICKPAD(priv
->ext_cap_0c
)) {
1132 __set_bit(INPUT_PROP_BUTTONPAD
, dev
->propbit
);
1133 if (psmouse_matches_pnp_id(psmouse
, topbuttonpad_pnp_ids
))
1134 __set_bit(INPUT_PROP_TOPBUTTONPAD
, dev
->propbit
);
1135 /* Clickpads report only left button */
1136 __clear_bit(BTN_RIGHT
, dev
->keybit
);
1137 __clear_bit(BTN_MIDDLE
, dev
->keybit
);
1141 static ssize_t
synaptics_show_disable_gesture(struct psmouse
*psmouse
,
1142 void *data
, char *buf
)
1144 struct synaptics_data
*priv
= psmouse
->private;
1146 return sprintf(buf
, "%c\n", priv
->disable_gesture
? '1' : '0');
1149 static ssize_t
synaptics_set_disable_gesture(struct psmouse
*psmouse
,
1150 void *data
, const char *buf
,
1153 struct synaptics_data
*priv
= psmouse
->private;
1157 err
= kstrtouint(buf
, 10, &value
);
1164 if (value
== priv
->disable_gesture
)
1167 priv
->disable_gesture
= value
;
1169 priv
->mode
|= SYN_BIT_DISABLE_GESTURE
;
1171 priv
->mode
&= ~SYN_BIT_DISABLE_GESTURE
;
1173 if (synaptics_mode_cmd(psmouse
, priv
->mode
))
1179 PSMOUSE_DEFINE_ATTR(disable_gesture
, S_IWUSR
| S_IRUGO
, NULL
,
1180 synaptics_show_disable_gesture
,
1181 synaptics_set_disable_gesture
);
1183 static void synaptics_disconnect(struct psmouse
*psmouse
)
1185 struct synaptics_data
*priv
= psmouse
->private;
1187 if (!priv
->absolute_mode
&& SYN_ID_DISGEST_SUPPORTED(priv
->identity
))
1188 device_remove_file(&psmouse
->ps2dev
.serio
->dev
,
1189 &psmouse_attr_disable_gesture
.dattr
);
1191 synaptics_reset(psmouse
);
1193 psmouse
->private = NULL
;
1196 static int synaptics_reconnect(struct psmouse
*psmouse
)
1198 struct synaptics_data
*priv
= psmouse
->private;
1199 struct synaptics_data old_priv
= *priv
;
1200 unsigned char param
[2];
1205 psmouse_reset(psmouse
);
1208 * On some boxes, right after resuming, the touchpad
1209 * needs some time to finish initializing (I assume
1210 * it needs time to calibrate) and start responding
1211 * to Synaptics-specific queries, so let's wait a
1216 ps2_command(&psmouse
->ps2dev
, param
, PSMOUSE_CMD_GETID
);
1217 error
= synaptics_detect(psmouse
, 0);
1218 } while (error
&& ++retry
< 3);
1224 psmouse_dbg(psmouse
, "reconnected after %d tries\n", retry
);
1226 if (synaptics_query_hardware(psmouse
)) {
1227 psmouse_err(psmouse
, "Unable to query device.\n");
1231 if (synaptics_set_mode(psmouse
)) {
1232 psmouse_err(psmouse
, "Unable to initialize device.\n");
1236 if (old_priv
.identity
!= priv
->identity
||
1237 old_priv
.model_id
!= priv
->model_id
||
1238 old_priv
.capabilities
!= priv
->capabilities
||
1239 old_priv
.ext_cap
!= priv
->ext_cap
) {
1240 psmouse_err(psmouse
,
1241 "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n",
1242 old_priv
.identity
, priv
->identity
,
1243 old_priv
.model_id
, priv
->model_id
,
1244 old_priv
.capabilities
, priv
->capabilities
,
1245 old_priv
.ext_cap
, priv
->ext_cap
);
1252 static bool impaired_toshiba_kbc
;
1254 static const struct dmi_system_id toshiba_dmi_table
[] __initconst
= {
1255 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
1257 /* Toshiba Satellite */
1259 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
1260 DMI_MATCH(DMI_PRODUCT_NAME
, "Satellite"),
1264 /* Toshiba Dynabook */
1266 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
1267 DMI_MATCH(DMI_PRODUCT_NAME
, "dynabook"),
1271 /* Toshiba Portege M300 */
1273 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
1274 DMI_MATCH(DMI_PRODUCT_NAME
, "PORTEGE M300"),
1279 /* Toshiba Portege M300 */
1281 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
1282 DMI_MATCH(DMI_PRODUCT_NAME
, "Portable PC"),
1283 DMI_MATCH(DMI_PRODUCT_VERSION
, "Version 1.0"),
1291 static bool broken_olpc_ec
;
1293 static const struct dmi_system_id olpc_dmi_table
[] __initconst
= {
1294 #if defined(CONFIG_DMI) && defined(CONFIG_OLPC)
1296 /* OLPC XO-1 or XO-1.5 */
1298 DMI_MATCH(DMI_SYS_VENDOR
, "OLPC"),
1299 DMI_MATCH(DMI_PRODUCT_NAME
, "XO"),
1306 static const struct dmi_system_id __initconst cr48_dmi_table
[] = {
1307 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
1309 /* Cr-48 Chromebook (Codename Mario) */
1311 DMI_MATCH(DMI_SYS_VENDOR
, "IEC"),
1312 DMI_MATCH(DMI_PRODUCT_NAME
, "Mario"),
1319 void __init
synaptics_module_init(void)
1321 impaired_toshiba_kbc
= dmi_check_system(toshiba_dmi_table
);
1322 broken_olpc_ec
= dmi_check_system(olpc_dmi_table
);
1323 cr48_profile_sensor
= dmi_check_system(cr48_dmi_table
);
1326 static int __synaptics_init(struct psmouse
*psmouse
, bool absolute_mode
)
1328 struct synaptics_data
*priv
;
1332 * The OLPC XO has issues with Synaptics' absolute mode; the constant
1333 * packet spew overloads the EC such that key presses on the keyboard
1334 * are missed. Given that, don't even attempt to use Absolute mode.
1335 * Relative mode seems to work just fine.
1337 if (absolute_mode
&& broken_olpc_ec
) {
1338 psmouse_info(psmouse
,
1339 "OLPC XO detected, not enabling Synaptics protocol.\n");
1343 psmouse
->private = priv
= kzalloc(sizeof(struct synaptics_data
), GFP_KERNEL
);
1347 psmouse_reset(psmouse
);
1349 if (synaptics_query_hardware(psmouse
)) {
1350 psmouse_err(psmouse
, "Unable to query device.\n");
1354 priv
->absolute_mode
= absolute_mode
;
1355 if (SYN_ID_DISGEST_SUPPORTED(priv
->identity
))
1356 priv
->disable_gesture
= true;
1359 * Unfortunately ForcePad capability is not exported over PS/2,
1360 * so we have to resort to checking PNP IDs.
1362 priv
->is_forcepad
= psmouse_matches_pnp_id(psmouse
, forcepad_pnp_ids
);
1364 if (synaptics_set_mode(psmouse
)) {
1365 psmouse_err(psmouse
, "Unable to initialize device.\n");
1369 priv
->pkt_type
= SYN_MODEL_NEWABS(priv
->model_id
) ? SYN_NEWABS
: SYN_OLDABS
;
1371 psmouse_info(psmouse
,
1372 "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n",
1373 SYN_ID_MODEL(priv
->identity
),
1374 SYN_ID_MAJOR(priv
->identity
), SYN_ID_MINOR(priv
->identity
),
1376 priv
->capabilities
, priv
->ext_cap
, priv
->ext_cap_0c
,
1377 priv
->board_id
, priv
->firmware_id
);
1379 set_input_params(psmouse
, priv
);
1382 * Encode touchpad model so that it can be used to set
1383 * input device->id.version and be visible to userspace.
1384 * Because version is __u16 we have to drop something.
1385 * Hardware info bits seem to be good candidates as they
1386 * are documented to be for Synaptics corp. internal use.
1388 psmouse
->model
= ((priv
->model_id
& 0x00ff0000) >> 8) |
1389 (priv
->model_id
& 0x000000ff);
1391 if (absolute_mode
) {
1392 psmouse
->protocol_handler
= synaptics_process_byte
;
1393 psmouse
->pktsize
= 6;
1395 /* Relative mode follows standard PS/2 mouse protocol */
1396 psmouse
->protocol_handler
= psmouse_process_byte
;
1397 psmouse
->pktsize
= 3;
1400 psmouse
->set_rate
= synaptics_set_rate
;
1401 psmouse
->disconnect
= synaptics_disconnect
;
1402 psmouse
->reconnect
= synaptics_reconnect
;
1403 psmouse
->cleanup
= synaptics_reset
;
1404 /* Synaptics can usually stay in sync without extra help */
1405 psmouse
->resync_time
= 0;
1407 if (SYN_CAP_PASS_THROUGH(priv
->capabilities
))
1408 synaptics_pt_create(psmouse
);
1411 * Toshiba's KBC seems to have trouble handling data from
1412 * Synaptics at full rate. Switch to a lower rate (roughly
1413 * the same rate as a standard PS/2 mouse).
1415 if (psmouse
->rate
>= 80 && impaired_toshiba_kbc
) {
1416 psmouse_info(psmouse
,
1417 "Toshiba %s detected, limiting rate to 40pps.\n",
1418 dmi_get_system_info(DMI_PRODUCT_NAME
));
1422 if (!priv
->absolute_mode
&& SYN_ID_DISGEST_SUPPORTED(priv
->identity
)) {
1423 err
= device_create_file(&psmouse
->ps2dev
.serio
->dev
,
1424 &psmouse_attr_disable_gesture
.dattr
);
1426 psmouse_err(psmouse
,
1427 "Failed to create disable_gesture attribute (%d)",
1440 int synaptics_init(struct psmouse
*psmouse
)
1442 return __synaptics_init(psmouse
, true);
1445 int synaptics_init_relative(struct psmouse
*psmouse
)
1447 return __synaptics_init(psmouse
, false);
1450 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */
1452 void __init
synaptics_module_init(void)
1456 int synaptics_init(struct psmouse
*psmouse
)
1461 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */