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 struct min_max_quirk
{
124 const char * const *pnp_ids
;
125 int x_min
, x_max
, y_min
, y_max
;
128 static const struct min_max_quirk min_max_pnpid_table
[] = {
130 (const char * const []){"LEN0033", NULL
},
131 1024, 5052, 2258, 4832
134 (const char * const []){"LEN0035", "LEN0042", NULL
},
135 1232, 5710, 1156, 4696
138 (const char * const []){"LEN0034", "LEN0036", "LEN2002",
140 1024, 5112, 2024, 4832
143 (const char * const []){"LEN2001", NULL
},
144 1024, 5022, 2508, 4832
149 /* This list has been kindly provided by Synaptics. */
150 static const char * const topbuttonpad_pnp_ids
[] = {
160 "LEN0033", /* Helix */
161 "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */
162 "LEN0035", /* X240 */
163 "LEN0036", /* T440 */
167 "LEN0042", /* Yoga */
174 "LEN2001", /* Edge E431 */
175 "LEN2002", /* Edge E531 */
177 "LEN2004", /* L440 */
188 static bool matches_pnp_id(struct psmouse
*psmouse
, const char * const ids
[])
192 if (!strncmp(psmouse
->ps2dev
.serio
->firmware_id
, "PNP:", 4))
193 for (i
= 0; ids
[i
]; i
++)
194 if (strstr(psmouse
->ps2dev
.serio
->firmware_id
, ids
[i
]))
200 /*****************************************************************************
201 * Synaptics communications functions
202 ****************************************************************************/
205 * Synaptics touchpads report the y coordinate from bottom to top, which is
206 * opposite from what userspace expects.
207 * This function is used to invert y before reporting.
209 static int synaptics_invert_y(int y
)
211 return YMAX_NOMINAL
+ YMIN_NOMINAL
- y
;
215 * Send a command to the synpatics touchpad by special commands
217 static int synaptics_send_cmd(struct psmouse
*psmouse
, unsigned char c
, unsigned char *param
)
219 if (psmouse_sliced_command(psmouse
, c
))
221 if (ps2_command(&psmouse
->ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
227 * Read the model-id bytes from the touchpad
228 * see also SYN_MODEL_* macros
230 static int synaptics_model_id(struct psmouse
*psmouse
)
232 struct synaptics_data
*priv
= psmouse
->private;
235 if (synaptics_send_cmd(psmouse
, SYN_QUE_MODEL
, mi
))
237 priv
->model_id
= (mi
[0]<<16) | (mi
[1]<<8) | mi
[2];
242 * Read the board id from the touchpad
243 * The board id is encoded in the "QUERY MODES" response
245 static int synaptics_board_id(struct psmouse
*psmouse
)
247 struct synaptics_data
*priv
= psmouse
->private;
248 unsigned char bid
[3];
250 if (synaptics_send_cmd(psmouse
, SYN_QUE_MODES
, bid
))
252 priv
->board_id
= ((bid
[0] & 0xfc) << 6) | bid
[1];
257 * Read the firmware id from the touchpad
259 static int synaptics_firmware_id(struct psmouse
*psmouse
)
261 struct synaptics_data
*priv
= psmouse
->private;
262 unsigned char fwid
[3];
264 if (synaptics_send_cmd(psmouse
, SYN_QUE_FIRMWARE_ID
, fwid
))
266 priv
->firmware_id
= (fwid
[0] << 16) | (fwid
[1] << 8) | fwid
[2];
271 * Read the capability-bits from the touchpad
272 * see also the SYN_CAP_* macros
274 static int synaptics_capability(struct psmouse
*psmouse
)
276 struct synaptics_data
*priv
= psmouse
->private;
277 unsigned char cap
[3];
279 if (synaptics_send_cmd(psmouse
, SYN_QUE_CAPABILITIES
, cap
))
281 priv
->capabilities
= (cap
[0] << 16) | (cap
[1] << 8) | cap
[2];
282 priv
->ext_cap
= priv
->ext_cap_0c
= 0;
285 * Older firmwares had submodel ID fixed to 0x47
287 if (SYN_ID_FULL(priv
->identity
) < 0x705 &&
288 SYN_CAP_SUBMODEL_ID(priv
->capabilities
) != 0x47) {
293 * Unless capExtended is set the rest of the flags should be ignored
295 if (!SYN_CAP_EXTENDED(priv
->capabilities
))
296 priv
->capabilities
= 0;
298 if (SYN_EXT_CAP_REQUESTS(priv
->capabilities
) >= 1) {
299 if (synaptics_send_cmd(psmouse
, SYN_QUE_EXT_CAPAB
, cap
)) {
300 psmouse_warn(psmouse
,
301 "device claims to have extended capabilities, but I'm not able to read them.\n");
303 priv
->ext_cap
= (cap
[0] << 16) | (cap
[1] << 8) | cap
[2];
306 * if nExtBtn is greater than 8 it should be considered
307 * invalid and treated as 0
309 if (SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
) > 8)
310 priv
->ext_cap
&= 0xff0fff;
314 if (SYN_EXT_CAP_REQUESTS(priv
->capabilities
) >= 4) {
315 if (synaptics_send_cmd(psmouse
, SYN_QUE_EXT_CAPAB_0C
, cap
)) {
316 psmouse_warn(psmouse
,
317 "device claims to have extended capability 0x0c, but I'm not able to read it.\n");
319 priv
->ext_cap_0c
= (cap
[0] << 16) | (cap
[1] << 8) | cap
[2];
328 * See also the SYN_ID_* macros
330 static int synaptics_identify(struct psmouse
*psmouse
)
332 struct synaptics_data
*priv
= psmouse
->private;
335 if (synaptics_send_cmd(psmouse
, SYN_QUE_IDENTIFY
, id
))
337 priv
->identity
= (id
[0]<<16) | (id
[1]<<8) | id
[2];
338 if (SYN_ID_IS_SYNAPTICS(priv
->identity
))
344 * Read touchpad resolution and maximum reported coordinates
345 * Resolution is left zero if touchpad does not support the query
348 static int synaptics_resolution(struct psmouse
*psmouse
)
350 struct synaptics_data
*priv
= psmouse
->private;
351 unsigned char resp
[3];
354 if (SYN_ID_MAJOR(priv
->identity
) < 4)
357 if (synaptics_send_cmd(psmouse
, SYN_QUE_RESOLUTION
, resp
) == 0) {
358 if (resp
[0] != 0 && (resp
[1] & 0x80) && resp
[2] != 0) {
359 priv
->x_res
= resp
[0]; /* x resolution in units/mm */
360 priv
->y_res
= resp
[2]; /* y resolution in units/mm */
364 for (i
= 0; min_max_pnpid_table
[i
].pnp_ids
; i
++) {
365 if (matches_pnp_id(psmouse
, min_max_pnpid_table
[i
].pnp_ids
)) {
366 priv
->x_min
= min_max_pnpid_table
[i
].x_min
;
367 priv
->x_max
= min_max_pnpid_table
[i
].x_max
;
368 priv
->y_min
= min_max_pnpid_table
[i
].y_min
;
369 priv
->y_max
= min_max_pnpid_table
[i
].y_max
;
374 if (SYN_EXT_CAP_REQUESTS(priv
->capabilities
) >= 5 &&
375 SYN_CAP_MAX_DIMENSIONS(priv
->ext_cap_0c
)) {
376 if (synaptics_send_cmd(psmouse
, SYN_QUE_EXT_MAX_COORDS
, resp
)) {
377 psmouse_warn(psmouse
,
378 "device claims to have max coordinates query, but I'm not able to read it.\n");
380 priv
->x_max
= (resp
[0] << 5) | ((resp
[1] & 0x0f) << 1);
381 priv
->y_max
= (resp
[2] << 5) | ((resp
[1] & 0xf0) >> 3);
385 if (SYN_EXT_CAP_REQUESTS(priv
->capabilities
) >= 7 &&
386 SYN_CAP_MIN_DIMENSIONS(priv
->ext_cap_0c
)) {
387 if (synaptics_send_cmd(psmouse
, SYN_QUE_EXT_MIN_COORDS
, resp
)) {
388 psmouse_warn(psmouse
,
389 "device claims to have min coordinates query, but I'm not able to read it.\n");
391 priv
->x_min
= (resp
[0] << 5) | ((resp
[1] & 0x0f) << 1);
392 priv
->y_min
= (resp
[2] << 5) | ((resp
[1] & 0xf0) >> 3);
399 static int synaptics_query_hardware(struct psmouse
*psmouse
)
401 if (synaptics_identify(psmouse
))
403 if (synaptics_model_id(psmouse
))
405 if (synaptics_firmware_id(psmouse
))
407 if (synaptics_board_id(psmouse
))
409 if (synaptics_capability(psmouse
))
411 if (synaptics_resolution(psmouse
))
417 static int synaptics_set_advanced_gesture_mode(struct psmouse
*psmouse
)
419 static unsigned char param
= 0xc8;
420 struct synaptics_data
*priv
= psmouse
->private;
422 if (!(SYN_CAP_ADV_GESTURE(priv
->ext_cap_0c
) ||
423 SYN_CAP_IMAGE_SENSOR(priv
->ext_cap_0c
)))
426 if (psmouse_sliced_command(psmouse
, SYN_QUE_MODEL
))
429 if (ps2_command(&psmouse
->ps2dev
, ¶m
, PSMOUSE_CMD_SETRATE
))
432 /* Advanced gesture mode also sends multi finger data */
433 priv
->capabilities
|= BIT(1);
438 static int synaptics_set_mode(struct psmouse
*psmouse
)
440 struct synaptics_data
*priv
= psmouse
->private;
443 if (priv
->absolute_mode
)
444 priv
->mode
|= SYN_BIT_ABSOLUTE_MODE
;
445 if (priv
->disable_gesture
)
446 priv
->mode
|= SYN_BIT_DISABLE_GESTURE
;
447 if (psmouse
->rate
>= 80)
448 priv
->mode
|= SYN_BIT_HIGH_RATE
;
449 if (SYN_CAP_EXTENDED(priv
->capabilities
))
450 priv
->mode
|= SYN_BIT_W_MODE
;
452 if (synaptics_mode_cmd(psmouse
, priv
->mode
))
455 if (priv
->absolute_mode
&&
456 synaptics_set_advanced_gesture_mode(psmouse
)) {
457 psmouse_err(psmouse
, "Advanced gesture mode init failed.\n");
464 static void synaptics_set_rate(struct psmouse
*psmouse
, unsigned int rate
)
466 struct synaptics_data
*priv
= psmouse
->private;
469 priv
->mode
|= SYN_BIT_HIGH_RATE
;
472 priv
->mode
&= ~SYN_BIT_HIGH_RATE
;
476 synaptics_mode_cmd(psmouse
, priv
->mode
);
479 /*****************************************************************************
480 * Synaptics pass-through PS/2 port support
481 ****************************************************************************/
482 static int synaptics_pt_write(struct serio
*serio
, unsigned char c
)
484 struct psmouse
*parent
= serio_get_drvdata(serio
->parent
);
485 char rate_param
= SYN_PS_CLIENT_CMD
; /* indicates that we want pass-through port */
487 if (psmouse_sliced_command(parent
, c
))
489 if (ps2_command(&parent
->ps2dev
, &rate_param
, PSMOUSE_CMD_SETRATE
))
494 static int synaptics_pt_start(struct serio
*serio
)
496 struct psmouse
*parent
= serio_get_drvdata(serio
->parent
);
497 struct synaptics_data
*priv
= parent
->private;
499 serio_pause_rx(parent
->ps2dev
.serio
);
500 priv
->pt_port
= serio
;
501 serio_continue_rx(parent
->ps2dev
.serio
);
506 static void synaptics_pt_stop(struct serio
*serio
)
508 struct psmouse
*parent
= serio_get_drvdata(serio
->parent
);
509 struct synaptics_data
*priv
= parent
->private;
511 serio_pause_rx(parent
->ps2dev
.serio
);
512 priv
->pt_port
= NULL
;
513 serio_continue_rx(parent
->ps2dev
.serio
);
516 static int synaptics_is_pt_packet(unsigned char *buf
)
518 return (buf
[0] & 0xFC) == 0x84 && (buf
[3] & 0xCC) == 0xC4;
521 static void synaptics_pass_pt_packet(struct serio
*ptport
, unsigned char *packet
)
523 struct psmouse
*child
= serio_get_drvdata(ptport
);
525 if (child
&& child
->state
== PSMOUSE_ACTIVATED
) {
526 serio_interrupt(ptport
, packet
[1], 0);
527 serio_interrupt(ptport
, packet
[4], 0);
528 serio_interrupt(ptport
, packet
[5], 0);
529 if (child
->pktsize
== 4)
530 serio_interrupt(ptport
, packet
[2], 0);
532 serio_interrupt(ptport
, packet
[1], 0);
535 static void synaptics_pt_activate(struct psmouse
*psmouse
)
537 struct synaptics_data
*priv
= psmouse
->private;
538 struct psmouse
*child
= serio_get_drvdata(priv
->pt_port
);
540 /* adjust the touchpad to child's choice of protocol */
542 if (child
->pktsize
== 4)
543 priv
->mode
|= SYN_BIT_FOUR_BYTE_CLIENT
;
545 priv
->mode
&= ~SYN_BIT_FOUR_BYTE_CLIENT
;
547 if (synaptics_mode_cmd(psmouse
, priv
->mode
))
548 psmouse_warn(psmouse
,
549 "failed to switch guest protocol\n");
553 static void synaptics_pt_create(struct psmouse
*psmouse
)
557 serio
= kzalloc(sizeof(struct serio
), GFP_KERNEL
);
560 "not enough memory for pass-through port\n");
564 serio
->id
.type
= SERIO_PS_PSTHRU
;
565 strlcpy(serio
->name
, "Synaptics pass-through", sizeof(serio
->name
));
566 strlcpy(serio
->phys
, "synaptics-pt/serio0", sizeof(serio
->name
));
567 serio
->write
= synaptics_pt_write
;
568 serio
->start
= synaptics_pt_start
;
569 serio
->stop
= synaptics_pt_stop
;
570 serio
->parent
= psmouse
->ps2dev
.serio
;
572 psmouse
->pt_activate
= synaptics_pt_activate
;
574 psmouse_info(psmouse
, "serio: %s port at %s\n",
575 serio
->name
, psmouse
->phys
);
576 serio_register_port(serio
);
579 /*****************************************************************************
580 * Functions to interpret the absolute mode packets
581 ****************************************************************************/
583 static void synaptics_mt_state_set(struct synaptics_mt_state
*state
, int count
,
586 state
->count
= count
;
591 static void synaptics_parse_agm(const unsigned char buf
[],
592 struct synaptics_data
*priv
,
593 struct synaptics_hw_state
*hw
)
595 struct synaptics_hw_state
*agm
= &priv
->agm
;
598 agm_packet_type
= (buf
[5] & 0x30) >> 4;
599 switch (agm_packet_type
) {
601 /* Gesture packet: (x, y, z) half resolution */
603 agm
->x
= (((buf
[4] & 0x0f) << 8) | buf
[1]) << 1;
604 agm
->y
= (((buf
[4] & 0xf0) << 4) | buf
[2]) << 1;
605 agm
->z
= ((buf
[3] & 0x30) | (buf
[5] & 0x0f)) << 1;
609 /* AGM-CONTACT packet: (count, sgm, agm) */
610 synaptics_mt_state_set(&agm
->mt_state
, buf
[1], buf
[2], buf
[4]);
617 /* Record that at least one AGM has been received since last SGM */
618 priv
->agm_pending
= true;
621 static int synaptics_parse_hw_state(const unsigned char buf
[],
622 struct synaptics_data
*priv
,
623 struct synaptics_hw_state
*hw
)
625 memset(hw
, 0, sizeof(struct synaptics_hw_state
));
627 if (SYN_MODEL_NEWABS(priv
->model_id
)) {
628 hw
->w
= (((buf
[0] & 0x30) >> 2) |
629 ((buf
[0] & 0x04) >> 1) |
630 ((buf
[3] & 0x04) >> 2));
632 if ((SYN_CAP_ADV_GESTURE(priv
->ext_cap_0c
) ||
633 SYN_CAP_IMAGE_SENSOR(priv
->ext_cap_0c
)) &&
635 synaptics_parse_agm(buf
, priv
, hw
);
639 hw
->x
= (((buf
[3] & 0x10) << 8) |
640 ((buf
[1] & 0x0f) << 8) |
642 hw
->y
= (((buf
[3] & 0x20) << 7) |
643 ((buf
[1] & 0xf0) << 4) |
647 hw
->left
= (buf
[0] & 0x01) ? 1 : 0;
648 hw
->right
= (buf
[0] & 0x02) ? 1 : 0;
650 if (SYN_CAP_FORCEPAD(priv
->ext_cap_0c
)) {
652 * ForcePads, like Clickpads, use middle button
653 * bits to report primary button clicks.
654 * Unfortunately they report primary button not
655 * only when user presses on the pad above certain
656 * threshold, but also when there are more than one
657 * finger on the touchpad, which interferes with
658 * out multi-finger gestures.
662 priv
->press
= priv
->report_press
= false;
663 } else if (hw
->w
>= 4 && ((buf
[0] ^ buf
[3]) & 0x01)) {
665 * Single-finger touch with pressure above
666 * the threshold. If pressure stays long
667 * enough, we'll start reporting primary
668 * button. We rely on the device continuing
669 * sending data even if finger does not
673 priv
->press_start
= jiffies
;
675 } else if (time_after(jiffies
,
677 msecs_to_jiffies(50))) {
678 priv
->report_press
= true;
684 hw
->left
= priv
->report_press
;
686 } else if (SYN_CAP_CLICKPAD(priv
->ext_cap_0c
)) {
688 * Clickpad's button is transmitted as middle button,
689 * however, since it is primary button, we will report
692 hw
->left
= ((buf
[0] ^ buf
[3]) & 0x01) ? 1 : 0;
694 } else if (SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
)) {
695 hw
->middle
= ((buf
[0] ^ buf
[3]) & 0x01) ? 1 : 0;
697 hw
->scroll
= (signed char)(buf
[1]);
700 if (SYN_CAP_FOUR_BUTTON(priv
->capabilities
)) {
701 hw
->up
= ((buf
[0] ^ buf
[3]) & 0x01) ? 1 : 0;
702 hw
->down
= ((buf
[0] ^ buf
[3]) & 0x02) ? 1 : 0;
705 if (SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
) &&
706 ((buf
[0] ^ buf
[3]) & 0x02)) {
707 switch (SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
) & ~0x01) {
710 * if nExtBtn is greater than 8 it should be
711 * considered invalid and treated as 0
715 hw
->ext_buttons
|= ((buf
[5] & 0x08)) ? 0x80 : 0;
716 hw
->ext_buttons
|= ((buf
[4] & 0x08)) ? 0x40 : 0;
718 hw
->ext_buttons
|= ((buf
[5] & 0x04)) ? 0x20 : 0;
719 hw
->ext_buttons
|= ((buf
[4] & 0x04)) ? 0x10 : 0;
721 hw
->ext_buttons
|= ((buf
[5] & 0x02)) ? 0x08 : 0;
722 hw
->ext_buttons
|= ((buf
[4] & 0x02)) ? 0x04 : 0;
724 hw
->ext_buttons
|= ((buf
[5] & 0x01)) ? 0x02 : 0;
725 hw
->ext_buttons
|= ((buf
[4] & 0x01)) ? 0x01 : 0;
729 hw
->x
= (((buf
[1] & 0x1f) << 8) | buf
[2]);
730 hw
->y
= (((buf
[4] & 0x1f) << 8) | buf
[5]);
732 hw
->z
= (((buf
[0] & 0x30) << 2) | (buf
[3] & 0x3F));
733 hw
->w
= (((buf
[1] & 0x80) >> 4) | ((buf
[0] & 0x04) >> 1));
735 hw
->left
= (buf
[0] & 0x01) ? 1 : 0;
736 hw
->right
= (buf
[0] & 0x02) ? 1 : 0;
740 * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE
741 * is used by some firmware to indicate a finger at the edge of
742 * the touchpad whose precise position cannot be determined, so
743 * convert these values to the maximum axis value.
745 if (hw
->x
> X_MAX_POSITIVE
)
746 hw
->x
-= 1 << ABS_POS_BITS
;
747 else if (hw
->x
== X_MAX_POSITIVE
)
750 if (hw
->y
> Y_MAX_POSITIVE
)
751 hw
->y
-= 1 << ABS_POS_BITS
;
752 else if (hw
->y
== Y_MAX_POSITIVE
)
758 static void synaptics_report_semi_mt_slot(struct input_dev
*dev
, int slot
,
759 bool active
, int x
, int y
)
761 input_mt_slot(dev
, slot
);
762 input_mt_report_slot_state(dev
, MT_TOOL_FINGER
, active
);
764 input_report_abs(dev
, ABS_MT_POSITION_X
, x
);
765 input_report_abs(dev
, ABS_MT_POSITION_Y
, synaptics_invert_y(y
));
769 static void synaptics_report_semi_mt_data(struct input_dev
*dev
,
770 const struct synaptics_hw_state
*a
,
771 const struct synaptics_hw_state
*b
,
774 if (num_fingers
>= 2) {
775 synaptics_report_semi_mt_slot(dev
, 0, true, min(a
->x
, b
->x
),
777 synaptics_report_semi_mt_slot(dev
, 1, true, max(a
->x
, b
->x
),
779 } else if (num_fingers
== 1) {
780 synaptics_report_semi_mt_slot(dev
, 0, true, a
->x
, a
->y
);
781 synaptics_report_semi_mt_slot(dev
, 1, false, 0, 0);
783 synaptics_report_semi_mt_slot(dev
, 0, false, 0, 0);
784 synaptics_report_semi_mt_slot(dev
, 1, false, 0, 0);
788 static void synaptics_report_buttons(struct psmouse
*psmouse
,
789 const struct synaptics_hw_state
*hw
)
791 struct input_dev
*dev
= psmouse
->dev
;
792 struct synaptics_data
*priv
= psmouse
->private;
795 input_report_key(dev
, BTN_LEFT
, hw
->left
);
796 input_report_key(dev
, BTN_RIGHT
, hw
->right
);
798 if (SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
))
799 input_report_key(dev
, BTN_MIDDLE
, hw
->middle
);
801 if (SYN_CAP_FOUR_BUTTON(priv
->capabilities
)) {
802 input_report_key(dev
, BTN_FORWARD
, hw
->up
);
803 input_report_key(dev
, BTN_BACK
, hw
->down
);
806 for (i
= 0; i
< SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
); i
++)
807 input_report_key(dev
, BTN_0
+ i
, hw
->ext_buttons
& (1 << i
));
810 static void synaptics_report_slot(struct input_dev
*dev
, int slot
,
811 const struct synaptics_hw_state
*hw
)
813 input_mt_slot(dev
, slot
);
814 input_mt_report_slot_state(dev
, MT_TOOL_FINGER
, (hw
!= NULL
));
818 input_report_abs(dev
, ABS_MT_POSITION_X
, hw
->x
);
819 input_report_abs(dev
, ABS_MT_POSITION_Y
, synaptics_invert_y(hw
->y
));
820 input_report_abs(dev
, ABS_MT_PRESSURE
, hw
->z
);
823 static void synaptics_report_mt_data(struct psmouse
*psmouse
,
824 struct synaptics_mt_state
*mt_state
,
825 const struct synaptics_hw_state
*sgm
)
827 struct input_dev
*dev
= psmouse
->dev
;
828 struct synaptics_data
*priv
= psmouse
->private;
829 struct synaptics_hw_state
*agm
= &priv
->agm
;
830 struct synaptics_mt_state
*old
= &priv
->mt_state
;
832 switch (mt_state
->count
) {
834 synaptics_report_slot(dev
, 0, NULL
);
835 synaptics_report_slot(dev
, 1, NULL
);
838 if (mt_state
->sgm
== -1) {
839 synaptics_report_slot(dev
, 0, NULL
);
840 synaptics_report_slot(dev
, 1, NULL
);
841 } else if (mt_state
->sgm
== 0) {
842 synaptics_report_slot(dev
, 0, sgm
);
843 synaptics_report_slot(dev
, 1, NULL
);
845 synaptics_report_slot(dev
, 0, NULL
);
846 synaptics_report_slot(dev
, 1, sgm
);
851 * If the finger slot contained in SGM is valid, and either
852 * hasn't changed, or is new, or the old SGM has now moved to
853 * AGM, then report SGM in MTB slot 0.
854 * Otherwise, empty MTB slot 0.
856 if (mt_state
->sgm
!= -1 &&
857 (mt_state
->sgm
== old
->sgm
||
858 old
->sgm
== -1 || mt_state
->agm
== old
->sgm
))
859 synaptics_report_slot(dev
, 0, sgm
);
861 synaptics_report_slot(dev
, 0, NULL
);
864 * If the finger slot contained in AGM is valid, and either
865 * hasn't changed, or is new, then report AGM in MTB slot 1.
866 * Otherwise, empty MTB slot 1.
868 * However, in the case where the AGM is new, make sure that
869 * that it is either the same as the old SGM, or there was no
872 * Otherwise, if the SGM was just 1, and the new AGM is 2, then
873 * the new AGM will keep the old SGM's tracking ID, which can
874 * cause apparent drumroll. This happens if in the following
875 * valid finger sequence:
877 * Action SGM AGM (MTB slot:Contact)
878 * 1. Touch contact 0 (0:0)
879 * 2. Touch contact 1 (0:0, 1:1)
880 * 3. Lift contact 0 (1:1)
881 * 4. Touch contacts 2,3 (0:2, 1:3)
883 * In step 4, contact 3, in AGM must not be given the same
884 * tracking ID as contact 1 had in step 3. To avoid this,
885 * the first agm with contact 3 is dropped and slot 1 is
886 * invalidated (tracking ID = -1).
888 if (mt_state
->agm
!= -1 &&
889 (mt_state
->agm
== old
->agm
||
891 (old
->sgm
== -1 || mt_state
->agm
== old
->sgm
))))
892 synaptics_report_slot(dev
, 1, agm
);
894 synaptics_report_slot(dev
, 1, NULL
);
898 /* Don't use active slot count to generate BTN_TOOL events. */
899 input_mt_report_pointer_emulation(dev
, false);
901 /* Send the number of fingers reported by touchpad itself. */
902 input_mt_report_finger_count(dev
, mt_state
->count
);
904 synaptics_report_buttons(psmouse
, sgm
);
909 /* Handle case where mt_state->count = 0 */
910 static void synaptics_image_sensor_0f(struct synaptics_data
*priv
,
911 struct synaptics_mt_state
*mt_state
)
913 synaptics_mt_state_set(mt_state
, 0, -1, -1);
914 priv
->mt_state_lost
= false;
917 /* Handle case where mt_state->count = 1 */
918 static void synaptics_image_sensor_1f(struct synaptics_data
*priv
,
919 struct synaptics_mt_state
*mt_state
)
921 struct synaptics_hw_state
*agm
= &priv
->agm
;
922 struct synaptics_mt_state
*old
= &priv
->mt_state
;
925 * If the last AGM was (0,0,0), and there is only one finger left,
926 * then we absolutely know that SGM contains slot 0, and all other
927 * fingers have been removed.
929 if (priv
->agm_pending
&& agm
->z
== 0) {
930 synaptics_mt_state_set(mt_state
, 1, 0, -1);
931 priv
->mt_state_lost
= false;
935 switch (old
->count
) {
937 synaptics_mt_state_set(mt_state
, 1, 0, -1);
941 * If mt_state_lost, then the previous transition was 3->1,
942 * and SGM now contains either slot 0 or 1, but we don't know
943 * which. So, we just assume that the SGM now contains slot 1.
945 * If pending AGM and either:
946 * (a) the previous SGM slot contains slot 0, or
947 * (b) there was no SGM slot
948 * then, the SGM now contains slot 1
950 * Case (a) happens with very rapid "drum roll" gestures, where
951 * slot 0 finger is lifted and a new slot 1 finger touches
952 * within one reporting interval.
954 * Case (b) happens if initially two or more fingers tap
955 * briefly, and all but one lift before the end of the first
956 * reporting interval.
958 * (In both these cases, slot 0 will becomes empty, so SGM
959 * contains slot 1 with the new finger)
961 * Else, if there was no previous SGM, it now contains slot 0.
963 * Otherwise, SGM still contains the same slot.
965 if (priv
->mt_state_lost
||
966 (priv
->agm_pending
&& old
->sgm
<= 0))
967 synaptics_mt_state_set(mt_state
, 1, 1, -1);
968 else if (old
->sgm
== -1)
969 synaptics_mt_state_set(mt_state
, 1, 0, -1);
973 * If mt_state_lost, we don't know which finger SGM contains.
975 * So, report 1 finger, but with both slots empty.
976 * We will use slot 1 on subsequent 1->1
978 if (priv
->mt_state_lost
) {
979 synaptics_mt_state_set(mt_state
, 1, -1, -1);
983 * Since the last AGM was NOT (0,0,0), it was the finger in
984 * slot 0 that has been removed.
985 * So, SGM now contains previous AGM's slot, and AGM is now
988 synaptics_mt_state_set(mt_state
, 1, old
->agm
, -1);
992 * Since last AGM was not (0,0,0), we don't know which finger
995 * So, report 1 finger, but with both slots empty.
996 * We will use slot 1 on subsequent 1->1
998 synaptics_mt_state_set(mt_state
, 1, -1, -1);
999 priv
->mt_state_lost
= true;
1003 /* mt_state was updated by AGM-CONTACT packet */
1008 /* Handle case where mt_state->count = 2 */
1009 static void synaptics_image_sensor_2f(struct synaptics_data
*priv
,
1010 struct synaptics_mt_state
*mt_state
)
1012 struct synaptics_mt_state
*old
= &priv
->mt_state
;
1014 switch (old
->count
) {
1016 synaptics_mt_state_set(mt_state
, 2, 0, 1);
1020 * If previous SGM contained slot 1 or higher, SGM now contains
1021 * slot 0 (the newly touching finger) and AGM contains SGM's
1024 * Otherwise, SGM still contains slot 0 and AGM now contains
1028 synaptics_mt_state_set(mt_state
, 2, 0, old
->sgm
);
1030 synaptics_mt_state_set(mt_state
, 2, 0, 1);
1034 * If mt_state_lost, SGM now contains either finger 1 or 2, but
1035 * we don't know which.
1036 * So, we just assume that the SGM contains slot 0 and AGM 1.
1038 if (priv
->mt_state_lost
)
1039 synaptics_mt_state_set(mt_state
, 2, 0, 1);
1041 * Otherwise, use the same mt_state, since it either hasn't
1042 * changed, or was updated by a recently received AGM-CONTACT
1048 * 3->2 transitions have two unsolvable problems:
1049 * 1) no indication is given which finger was removed
1050 * 2) no way to tell if agm packet was for finger 3
1051 * before 3->2, or finger 2 after 3->2.
1053 * So, report 2 fingers, but empty all slots.
1054 * We will guess slots [0,1] on subsequent 2->2.
1056 synaptics_mt_state_set(mt_state
, 2, -1, -1);
1057 priv
->mt_state_lost
= true;
1061 /* mt_state was updated by AGM-CONTACT packet */
1066 /* Handle case where mt_state->count = 3 */
1067 static void synaptics_image_sensor_3f(struct synaptics_data
*priv
,
1068 struct synaptics_mt_state
*mt_state
)
1070 struct synaptics_mt_state
*old
= &priv
->mt_state
;
1072 switch (old
->count
) {
1074 synaptics_mt_state_set(mt_state
, 3, 0, 2);
1078 * If previous SGM contained slot 2 or higher, SGM now contains
1079 * slot 0 (one of the newly touching fingers) and AGM contains
1080 * SGM's previous slot.
1082 * Otherwise, SGM now contains slot 0 and AGM contains slot 2.
1085 synaptics_mt_state_set(mt_state
, 3, 0, old
->sgm
);
1087 synaptics_mt_state_set(mt_state
, 3, 0, 2);
1091 * If the AGM previously contained slot 3 or higher, then the
1092 * newly touching finger is in the lowest available slot.
1094 * If SGM was previously 1 or higher, then the new SGM is
1095 * now slot 0 (with a new finger), otherwise, the new finger
1096 * is now in a hidden slot between 0 and AGM's slot.
1098 * In all such cases, the SGM now contains slot 0, and the AGM
1099 * continues to contain the same slot as before.
1101 if (old
->agm
>= 3) {
1102 synaptics_mt_state_set(mt_state
, 3, 0, old
->agm
);
1107 * After some 3->1 and all 3->2 transitions, we lose track
1108 * of which slot is reported by SGM and AGM.
1110 * For 2->3 in this state, report 3 fingers, but empty all
1111 * slots, and we will guess (0,2) on a subsequent 0->3.
1113 * To userspace, the resulting transition will look like:
1114 * 2:[0,1] -> 3:[-1,-1] -> 3:[0,2]
1116 if (priv
->mt_state_lost
) {
1117 synaptics_mt_state_set(mt_state
, 3, -1, -1);
1122 * If the (SGM,AGM) really previously contained slots (0, 1),
1123 * then we cannot know what slot was just reported by the AGM,
1124 * because the 2->3 transition can occur either before or after
1125 * the AGM packet. Thus, this most recent AGM could contain
1126 * either the same old slot 1 or the new slot 2.
1127 * Subsequent AGMs will be reporting slot 2.
1129 * To userspace, the resulting transition will look like:
1130 * 2:[0,1] -> 3:[0,-1] -> 3:[0,2]
1132 synaptics_mt_state_set(mt_state
, 3, 0, -1);
1136 * If, for whatever reason, the previous agm was invalid,
1137 * Assume SGM now contains slot 0, AGM now contains slot 2.
1140 synaptics_mt_state_set(mt_state
, 3, 0, 2);
1142 * mt_state either hasn't changed, or was updated by a recently
1143 * received AGM-CONTACT packet.
1149 /* mt_state was updated by AGM-CONTACT packet */
1154 /* Handle case where mt_state->count = 4, or = 5 */
1155 static void synaptics_image_sensor_45f(struct synaptics_data
*priv
,
1156 struct synaptics_mt_state
*mt_state
)
1158 /* mt_state was updated correctly by AGM-CONTACT packet */
1159 priv
->mt_state_lost
= false;
1162 static void synaptics_image_sensor_process(struct psmouse
*psmouse
,
1163 struct synaptics_hw_state
*sgm
)
1165 struct synaptics_data
*priv
= psmouse
->private;
1166 struct synaptics_hw_state
*agm
= &priv
->agm
;
1167 struct synaptics_mt_state mt_state
;
1169 /* Initialize using current mt_state (as updated by last agm) */
1170 mt_state
= agm
->mt_state
;
1173 * Update mt_state using the new finger count and current mt_state.
1176 synaptics_image_sensor_0f(priv
, &mt_state
);
1177 else if (sgm
->w
>= 4)
1178 synaptics_image_sensor_1f(priv
, &mt_state
);
1179 else if (sgm
->w
== 0)
1180 synaptics_image_sensor_2f(priv
, &mt_state
);
1181 else if (sgm
->w
== 1 && mt_state
.count
<= 3)
1182 synaptics_image_sensor_3f(priv
, &mt_state
);
1184 synaptics_image_sensor_45f(priv
, &mt_state
);
1186 /* Send resulting input events to user space */
1187 synaptics_report_mt_data(psmouse
, &mt_state
, sgm
);
1189 /* Store updated mt_state */
1190 priv
->mt_state
= agm
->mt_state
= mt_state
;
1191 priv
->agm_pending
= false;
1194 static void synaptics_profile_sensor_process(struct psmouse
*psmouse
,
1195 struct synaptics_hw_state
*sgm
,
1198 struct input_dev
*dev
= psmouse
->dev
;
1199 struct synaptics_data
*priv
= psmouse
->private;
1200 struct synaptics_hw_state
*hw
[2] = { sgm
, &priv
->agm
};
1201 struct input_mt_pos pos
[2];
1202 int slot
[2], nsemi
, i
;
1204 nsemi
= clamp_val(num_fingers
, 0, 2);
1206 for (i
= 0; i
< nsemi
; i
++) {
1207 pos
[i
].x
= hw
[i
]->x
;
1208 pos
[i
].y
= synaptics_invert_y(hw
[i
]->y
);
1211 input_mt_assign_slots(dev
, slot
, pos
, nsemi
);
1213 for (i
= 0; i
< nsemi
; i
++) {
1214 input_mt_slot(dev
, slot
[i
]);
1215 input_mt_report_slot_state(dev
, MT_TOOL_FINGER
, true);
1216 input_report_abs(dev
, ABS_MT_POSITION_X
, pos
[i
].x
);
1217 input_report_abs(dev
, ABS_MT_POSITION_Y
, pos
[i
].y
);
1218 input_report_abs(dev
, ABS_MT_PRESSURE
, hw
[i
]->z
);
1221 input_mt_drop_unused(dev
);
1222 input_mt_report_pointer_emulation(dev
, false);
1223 input_mt_report_finger_count(dev
, num_fingers
);
1225 synaptics_report_buttons(psmouse
, sgm
);
1231 * called for each full received packet from the touchpad
1233 static void synaptics_process_packet(struct psmouse
*psmouse
)
1235 struct input_dev
*dev
= psmouse
->dev
;
1236 struct synaptics_data
*priv
= psmouse
->private;
1237 struct synaptics_hw_state hw
;
1241 if (synaptics_parse_hw_state(psmouse
->packet
, priv
, &hw
))
1244 if (SYN_CAP_IMAGE_SENSOR(priv
->ext_cap_0c
)) {
1245 synaptics_image_sensor_process(psmouse
, &hw
);
1250 priv
->scroll
+= hw
.scroll
;
1252 while (priv
->scroll
>= 4) {
1253 input_report_key(dev
, BTN_BACK
, !hw
.down
);
1255 input_report_key(dev
, BTN_BACK
, hw
.down
);
1259 while (priv
->scroll
<= -4) {
1260 input_report_key(dev
, BTN_FORWARD
, !hw
.up
);
1262 input_report_key(dev
, BTN_FORWARD
, hw
.up
);
1269 if (hw
.z
> 0 && hw
.x
> 1) {
1272 if (SYN_CAP_EXTENDED(priv
->capabilities
)) {
1275 if (SYN_CAP_MULTIFINGER(priv
->capabilities
))
1276 num_fingers
= hw
.w
+ 2;
1279 if (SYN_MODEL_PEN(priv
->model_id
))
1280 ; /* Nothing, treat a pen as a single finger */
1283 if (SYN_CAP_PALMDETECT(priv
->capabilities
))
1284 finger_width
= hw
.w
;
1293 if (cr48_profile_sensor
) {
1294 synaptics_profile_sensor_process(psmouse
, &hw
, num_fingers
);
1298 if (SYN_CAP_ADV_GESTURE(priv
->ext_cap_0c
))
1299 synaptics_report_semi_mt_data(dev
, &hw
, &priv
->agm
,
1303 * BTN_TOUCH has to be first as mousedev relies on it when doing
1304 * absolute -> relative conversion
1306 if (hw
.z
> 30) input_report_key(dev
, BTN_TOUCH
, 1);
1307 if (hw
.z
< 25) input_report_key(dev
, BTN_TOUCH
, 0);
1309 if (num_fingers
> 0) {
1310 input_report_abs(dev
, ABS_X
, hw
.x
);
1311 input_report_abs(dev
, ABS_Y
, synaptics_invert_y(hw
.y
));
1313 input_report_abs(dev
, ABS_PRESSURE
, hw
.z
);
1315 if (SYN_CAP_PALMDETECT(priv
->capabilities
))
1316 input_report_abs(dev
, ABS_TOOL_WIDTH
, finger_width
);
1318 input_report_key(dev
, BTN_TOOL_FINGER
, num_fingers
== 1);
1319 if (SYN_CAP_MULTIFINGER(priv
->capabilities
)) {
1320 input_report_key(dev
, BTN_TOOL_DOUBLETAP
, num_fingers
== 2);
1321 input_report_key(dev
, BTN_TOOL_TRIPLETAP
, num_fingers
== 3);
1324 synaptics_report_buttons(psmouse
, &hw
);
1329 static int synaptics_validate_byte(struct psmouse
*psmouse
,
1330 int idx
, unsigned char pkt_type
)
1332 static const unsigned char newabs_mask
[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
1333 static const unsigned char newabs_rel_mask
[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
1334 static const unsigned char newabs_rslt
[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
1335 static const unsigned char oldabs_mask
[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
1336 static const unsigned char oldabs_rslt
[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
1337 const char *packet
= psmouse
->packet
;
1339 if (idx
< 0 || idx
> 4)
1345 case SYN_NEWABS_RELAXED
:
1346 return (packet
[idx
] & newabs_rel_mask
[idx
]) == newabs_rslt
[idx
];
1348 case SYN_NEWABS_STRICT
:
1349 return (packet
[idx
] & newabs_mask
[idx
]) == newabs_rslt
[idx
];
1352 return (packet
[idx
] & oldabs_mask
[idx
]) == oldabs_rslt
[idx
];
1355 psmouse_err(psmouse
, "unknown packet type %d\n", pkt_type
);
1360 static unsigned char synaptics_detect_pkt_type(struct psmouse
*psmouse
)
1364 for (i
= 0; i
< 5; i
++)
1365 if (!synaptics_validate_byte(psmouse
, i
, SYN_NEWABS_STRICT
)) {
1366 psmouse_info(psmouse
, "using relaxed packet validation\n");
1367 return SYN_NEWABS_RELAXED
;
1370 return SYN_NEWABS_STRICT
;
1373 static psmouse_ret_t
synaptics_process_byte(struct psmouse
*psmouse
)
1375 struct synaptics_data
*priv
= psmouse
->private;
1377 if (psmouse
->pktcnt
>= 6) { /* Full packet received */
1378 if (unlikely(priv
->pkt_type
== SYN_NEWABS
))
1379 priv
->pkt_type
= synaptics_detect_pkt_type(psmouse
);
1381 if (SYN_CAP_PASS_THROUGH(priv
->capabilities
) &&
1382 synaptics_is_pt_packet(psmouse
->packet
)) {
1384 synaptics_pass_pt_packet(priv
->pt_port
, psmouse
->packet
);
1386 synaptics_process_packet(psmouse
);
1388 return PSMOUSE_FULL_PACKET
;
1391 return synaptics_validate_byte(psmouse
, psmouse
->pktcnt
- 1, priv
->pkt_type
) ?
1392 PSMOUSE_GOOD_DATA
: PSMOUSE_BAD_DATA
;
1395 /*****************************************************************************
1396 * Driver initialization/cleanup functions
1397 ****************************************************************************/
1398 static void set_abs_position_params(struct input_dev
*dev
,
1399 struct synaptics_data
*priv
, int x_code
,
1402 int x_min
= priv
->x_min
?: XMIN_NOMINAL
;
1403 int x_max
= priv
->x_max
?: XMAX_NOMINAL
;
1404 int y_min
= priv
->y_min
?: YMIN_NOMINAL
;
1405 int y_max
= priv
->y_max
?: YMAX_NOMINAL
;
1406 int fuzz
= SYN_CAP_REDUCED_FILTERING(priv
->ext_cap_0c
) ?
1407 SYN_REDUCED_FILTER_FUZZ
: 0;
1409 input_set_abs_params(dev
, x_code
, x_min
, x_max
, fuzz
, 0);
1410 input_set_abs_params(dev
, y_code
, y_min
, y_max
, fuzz
, 0);
1411 input_abs_set_res(dev
, x_code
, priv
->x_res
);
1412 input_abs_set_res(dev
, y_code
, priv
->y_res
);
1415 static void set_input_params(struct psmouse
*psmouse
,
1416 struct synaptics_data
*priv
)
1418 struct input_dev
*dev
= psmouse
->dev
;
1421 /* Things that apply to both modes */
1422 __set_bit(INPUT_PROP_POINTER
, dev
->propbit
);
1423 __set_bit(EV_KEY
, dev
->evbit
);
1424 __set_bit(BTN_LEFT
, dev
->keybit
);
1425 __set_bit(BTN_RIGHT
, dev
->keybit
);
1427 if (SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
))
1428 __set_bit(BTN_MIDDLE
, dev
->keybit
);
1430 if (!priv
->absolute_mode
) {
1432 __set_bit(EV_REL
, dev
->evbit
);
1433 __set_bit(REL_X
, dev
->relbit
);
1434 __set_bit(REL_Y
, dev
->relbit
);
1439 __set_bit(EV_ABS
, dev
->evbit
);
1440 set_abs_position_params(dev
, priv
, ABS_X
, ABS_Y
);
1441 input_set_abs_params(dev
, ABS_PRESSURE
, 0, 255, 0, 0);
1443 if (cr48_profile_sensor
)
1444 input_set_abs_params(dev
, ABS_MT_PRESSURE
, 0, 255, 0, 0);
1446 if (SYN_CAP_IMAGE_SENSOR(priv
->ext_cap_0c
)) {
1447 set_abs_position_params(dev
, priv
, ABS_MT_POSITION_X
,
1449 /* Image sensors can report per-contact pressure */
1450 input_set_abs_params(dev
, ABS_MT_PRESSURE
, 0, 255, 0, 0);
1451 input_mt_init_slots(dev
, 2, INPUT_MT_POINTER
);
1453 /* Image sensors can signal 4 and 5 finger clicks */
1454 __set_bit(BTN_TOOL_QUADTAP
, dev
->keybit
);
1455 __set_bit(BTN_TOOL_QUINTTAP
, dev
->keybit
);
1456 } else if (SYN_CAP_ADV_GESTURE(priv
->ext_cap_0c
)) {
1457 set_abs_position_params(dev
, priv
, ABS_MT_POSITION_X
,
1460 * Profile sensor in CR-48 tracks contacts reasonably well,
1461 * other non-image sensors with AGM use semi-mt.
1463 input_mt_init_slots(dev
, 2,
1465 (cr48_profile_sensor
?
1466 INPUT_MT_TRACK
: INPUT_MT_SEMI_MT
));
1469 if (SYN_CAP_PALMDETECT(priv
->capabilities
))
1470 input_set_abs_params(dev
, ABS_TOOL_WIDTH
, 0, 15, 0, 0);
1472 __set_bit(BTN_TOUCH
, dev
->keybit
);
1473 __set_bit(BTN_TOOL_FINGER
, dev
->keybit
);
1475 if (SYN_CAP_MULTIFINGER(priv
->capabilities
)) {
1476 __set_bit(BTN_TOOL_DOUBLETAP
, dev
->keybit
);
1477 __set_bit(BTN_TOOL_TRIPLETAP
, dev
->keybit
);
1480 if (SYN_CAP_FOUR_BUTTON(priv
->capabilities
) ||
1481 SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
)) {
1482 __set_bit(BTN_FORWARD
, dev
->keybit
);
1483 __set_bit(BTN_BACK
, dev
->keybit
);
1486 for (i
= 0; i
< SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
); i
++)
1487 __set_bit(BTN_0
+ i
, dev
->keybit
);
1489 __clear_bit(EV_REL
, dev
->evbit
);
1490 __clear_bit(REL_X
, dev
->relbit
);
1491 __clear_bit(REL_Y
, dev
->relbit
);
1493 if (SYN_CAP_CLICKPAD(priv
->ext_cap_0c
)) {
1494 __set_bit(INPUT_PROP_BUTTONPAD
, dev
->propbit
);
1495 if (matches_pnp_id(psmouse
, topbuttonpad_pnp_ids
))
1496 __set_bit(INPUT_PROP_TOPBUTTONPAD
, dev
->propbit
);
1497 /* Clickpads report only left button */
1498 __clear_bit(BTN_RIGHT
, dev
->keybit
);
1499 __clear_bit(BTN_MIDDLE
, dev
->keybit
);
1503 static ssize_t
synaptics_show_disable_gesture(struct psmouse
*psmouse
,
1504 void *data
, char *buf
)
1506 struct synaptics_data
*priv
= psmouse
->private;
1508 return sprintf(buf
, "%c\n", priv
->disable_gesture
? '1' : '0');
1511 static ssize_t
synaptics_set_disable_gesture(struct psmouse
*psmouse
,
1512 void *data
, const char *buf
,
1515 struct synaptics_data
*priv
= psmouse
->private;
1519 err
= kstrtouint(buf
, 10, &value
);
1526 if (value
== priv
->disable_gesture
)
1529 priv
->disable_gesture
= value
;
1531 priv
->mode
|= SYN_BIT_DISABLE_GESTURE
;
1533 priv
->mode
&= ~SYN_BIT_DISABLE_GESTURE
;
1535 if (synaptics_mode_cmd(psmouse
, priv
->mode
))
1541 PSMOUSE_DEFINE_ATTR(disable_gesture
, S_IWUSR
| S_IRUGO
, NULL
,
1542 synaptics_show_disable_gesture
,
1543 synaptics_set_disable_gesture
);
1545 static void synaptics_disconnect(struct psmouse
*psmouse
)
1547 struct synaptics_data
*priv
= psmouse
->private;
1549 if (!priv
->absolute_mode
&& SYN_ID_DISGEST_SUPPORTED(priv
->identity
))
1550 device_remove_file(&psmouse
->ps2dev
.serio
->dev
,
1551 &psmouse_attr_disable_gesture
.dattr
);
1553 synaptics_reset(psmouse
);
1555 psmouse
->private = NULL
;
1558 static int synaptics_reconnect(struct psmouse
*psmouse
)
1560 struct synaptics_data
*priv
= psmouse
->private;
1561 struct synaptics_data old_priv
= *priv
;
1562 unsigned char param
[2];
1567 psmouse_reset(psmouse
);
1570 * On some boxes, right after resuming, the touchpad
1571 * needs some time to finish initializing (I assume
1572 * it needs time to calibrate) and start responding
1573 * to Synaptics-specific queries, so let's wait a
1578 ps2_command(&psmouse
->ps2dev
, param
, PSMOUSE_CMD_GETID
);
1579 error
= synaptics_detect(psmouse
, 0);
1580 } while (error
&& ++retry
< 3);
1586 psmouse_dbg(psmouse
, "reconnected after %d tries\n", retry
);
1588 if (synaptics_query_hardware(psmouse
)) {
1589 psmouse_err(psmouse
, "Unable to query device.\n");
1593 if (synaptics_set_mode(psmouse
)) {
1594 psmouse_err(psmouse
, "Unable to initialize device.\n");
1598 if (old_priv
.identity
!= priv
->identity
||
1599 old_priv
.model_id
!= priv
->model_id
||
1600 old_priv
.capabilities
!= priv
->capabilities
||
1601 old_priv
.ext_cap
!= priv
->ext_cap
) {
1602 psmouse_err(psmouse
,
1603 "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n",
1604 old_priv
.identity
, priv
->identity
,
1605 old_priv
.model_id
, priv
->model_id
,
1606 old_priv
.capabilities
, priv
->capabilities
,
1607 old_priv
.ext_cap
, priv
->ext_cap
);
1614 static bool impaired_toshiba_kbc
;
1616 static const struct dmi_system_id toshiba_dmi_table
[] __initconst
= {
1617 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
1619 /* Toshiba Satellite */
1621 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
1622 DMI_MATCH(DMI_PRODUCT_NAME
, "Satellite"),
1626 /* Toshiba Dynabook */
1628 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
1629 DMI_MATCH(DMI_PRODUCT_NAME
, "dynabook"),
1633 /* Toshiba Portege M300 */
1635 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
1636 DMI_MATCH(DMI_PRODUCT_NAME
, "PORTEGE M300"),
1641 /* Toshiba Portege M300 */
1643 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
1644 DMI_MATCH(DMI_PRODUCT_NAME
, "Portable PC"),
1645 DMI_MATCH(DMI_PRODUCT_VERSION
, "Version 1.0"),
1653 static bool broken_olpc_ec
;
1655 static const struct dmi_system_id olpc_dmi_table
[] __initconst
= {
1656 #if defined(CONFIG_DMI) && defined(CONFIG_OLPC)
1658 /* OLPC XO-1 or XO-1.5 */
1660 DMI_MATCH(DMI_SYS_VENDOR
, "OLPC"),
1661 DMI_MATCH(DMI_PRODUCT_NAME
, "XO"),
1668 static const struct dmi_system_id __initconst cr48_dmi_table
[] = {
1669 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
1671 /* Cr-48 Chromebook (Codename Mario) */
1673 DMI_MATCH(DMI_SYS_VENDOR
, "IEC"),
1674 DMI_MATCH(DMI_PRODUCT_NAME
, "Mario"),
1681 void __init
synaptics_module_init(void)
1683 impaired_toshiba_kbc
= dmi_check_system(toshiba_dmi_table
);
1684 broken_olpc_ec
= dmi_check_system(olpc_dmi_table
);
1685 cr48_profile_sensor
= dmi_check_system(cr48_dmi_table
);
1688 static int __synaptics_init(struct psmouse
*psmouse
, bool absolute_mode
)
1690 struct synaptics_data
*priv
;
1694 * The OLPC XO has issues with Synaptics' absolute mode; the constant
1695 * packet spew overloads the EC such that key presses on the keyboard
1696 * are missed. Given that, don't even attempt to use Absolute mode.
1697 * Relative mode seems to work just fine.
1699 if (absolute_mode
&& broken_olpc_ec
) {
1700 psmouse_info(psmouse
,
1701 "OLPC XO detected, not enabling Synaptics protocol.\n");
1705 psmouse
->private = priv
= kzalloc(sizeof(struct synaptics_data
), GFP_KERNEL
);
1709 psmouse_reset(psmouse
);
1711 if (synaptics_query_hardware(psmouse
)) {
1712 psmouse_err(psmouse
, "Unable to query device.\n");
1716 priv
->absolute_mode
= absolute_mode
;
1717 if (SYN_ID_DISGEST_SUPPORTED(priv
->identity
))
1718 priv
->disable_gesture
= true;
1720 if (synaptics_set_mode(psmouse
)) {
1721 psmouse_err(psmouse
, "Unable to initialize device.\n");
1725 priv
->pkt_type
= SYN_MODEL_NEWABS(priv
->model_id
) ? SYN_NEWABS
: SYN_OLDABS
;
1727 psmouse_info(psmouse
,
1728 "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n",
1729 SYN_ID_MODEL(priv
->identity
),
1730 SYN_ID_MAJOR(priv
->identity
), SYN_ID_MINOR(priv
->identity
),
1732 priv
->capabilities
, priv
->ext_cap
, priv
->ext_cap_0c
,
1733 priv
->board_id
, priv
->firmware_id
);
1735 set_input_params(psmouse
, priv
);
1738 * Encode touchpad model so that it can be used to set
1739 * input device->id.version and be visible to userspace.
1740 * Because version is __u16 we have to drop something.
1741 * Hardware info bits seem to be good candidates as they
1742 * are documented to be for Synaptics corp. internal use.
1744 psmouse
->model
= ((priv
->model_id
& 0x00ff0000) >> 8) |
1745 (priv
->model_id
& 0x000000ff);
1747 if (absolute_mode
) {
1748 psmouse
->protocol_handler
= synaptics_process_byte
;
1749 psmouse
->pktsize
= 6;
1751 /* Relative mode follows standard PS/2 mouse protocol */
1752 psmouse
->protocol_handler
= psmouse_process_byte
;
1753 psmouse
->pktsize
= 3;
1756 psmouse
->set_rate
= synaptics_set_rate
;
1757 psmouse
->disconnect
= synaptics_disconnect
;
1758 psmouse
->reconnect
= synaptics_reconnect
;
1759 psmouse
->cleanup
= synaptics_reset
;
1760 /* Synaptics can usually stay in sync without extra help */
1761 psmouse
->resync_time
= 0;
1763 if (SYN_CAP_PASS_THROUGH(priv
->capabilities
))
1764 synaptics_pt_create(psmouse
);
1767 * Toshiba's KBC seems to have trouble handling data from
1768 * Synaptics at full rate. Switch to a lower rate (roughly
1769 * the same rate as a standard PS/2 mouse).
1771 if (psmouse
->rate
>= 80 && impaired_toshiba_kbc
) {
1772 psmouse_info(psmouse
,
1773 "Toshiba %s detected, limiting rate to 40pps.\n",
1774 dmi_get_system_info(DMI_PRODUCT_NAME
));
1778 if (!priv
->absolute_mode
&& SYN_ID_DISGEST_SUPPORTED(priv
->identity
)) {
1779 err
= device_create_file(&psmouse
->ps2dev
.serio
->dev
,
1780 &psmouse_attr_disable_gesture
.dattr
);
1782 psmouse_err(psmouse
,
1783 "Failed to create disable_gesture attribute (%d)",
1796 int synaptics_init(struct psmouse
*psmouse
)
1798 return __synaptics_init(psmouse
, true);
1801 int synaptics_init_relative(struct psmouse
*psmouse
)
1803 return __synaptics_init(psmouse
, false);
1806 bool synaptics_supported(void)
1811 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */
1813 void __init
synaptics_module_init(void)
1817 int synaptics_init(struct psmouse
*psmouse
)
1822 bool synaptics_supported(void)
1827 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */