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/dmi.h>
28 #include <linux/input.h>
29 #include <linux/serio.h>
30 #include <linux/libps2.h>
31 #include <linux/slab.h>
33 #include "synaptics.h"
36 * The x/y limits are taken from the Synaptics TouchPad interfacing Guide,
37 * section 2.3.2, which says that they should be valid regardless of the
38 * actual size of the sensor.
39 * Note that newer firmware allows querying device for maximum useable
42 #define XMIN_NOMINAL 1472
43 #define XMAX_NOMINAL 5472
44 #define YMIN_NOMINAL 1408
45 #define YMAX_NOMINAL 4448
48 /*****************************************************************************
49 * Stuff we need even when we do not want native Synaptics support
50 ****************************************************************************/
53 * Set the synaptics touchpad mode byte by special commands
55 static int synaptics_mode_cmd(struct psmouse
*psmouse
, unsigned char mode
)
57 unsigned char param
[1];
59 if (psmouse_sliced_command(psmouse
, mode
))
61 param
[0] = SYN_PS_SET_MODE2
;
62 if (ps2_command(&psmouse
->ps2dev
, param
, PSMOUSE_CMD_SETRATE
))
67 int synaptics_detect(struct psmouse
*psmouse
, bool set_properties
)
69 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
70 unsigned char param
[4];
74 ps2_command(ps2dev
, param
, PSMOUSE_CMD_SETRES
);
75 ps2_command(ps2dev
, param
, PSMOUSE_CMD_SETRES
);
76 ps2_command(ps2dev
, param
, PSMOUSE_CMD_SETRES
);
77 ps2_command(ps2dev
, param
, PSMOUSE_CMD_SETRES
);
78 ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
);
84 psmouse
->vendor
= "Synaptics";
85 psmouse
->name
= "TouchPad";
91 void synaptics_reset(struct psmouse
*psmouse
)
93 /* reset touchpad back to relative mode, gestures enabled */
94 synaptics_mode_cmd(psmouse
, 0);
97 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS
99 /*****************************************************************************
100 * Synaptics communications functions
101 ****************************************************************************/
104 * Send a command to the synpatics touchpad by special commands
106 static int synaptics_send_cmd(struct psmouse
*psmouse
, unsigned char c
, unsigned char *param
)
108 if (psmouse_sliced_command(psmouse
, c
))
110 if (ps2_command(&psmouse
->ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
116 * Read the model-id bytes from the touchpad
117 * see also SYN_MODEL_* macros
119 static int synaptics_model_id(struct psmouse
*psmouse
)
121 struct synaptics_data
*priv
= psmouse
->private;
124 if (synaptics_send_cmd(psmouse
, SYN_QUE_MODEL
, mi
))
126 priv
->model_id
= (mi
[0]<<16) | (mi
[1]<<8) | mi
[2];
131 * Read the capability-bits from the touchpad
132 * see also the SYN_CAP_* macros
134 static int synaptics_capability(struct psmouse
*psmouse
)
136 struct synaptics_data
*priv
= psmouse
->private;
137 unsigned char cap
[3];
139 if (synaptics_send_cmd(psmouse
, SYN_QUE_CAPABILITIES
, cap
))
141 priv
->capabilities
= (cap
[0] << 16) | (cap
[1] << 8) | cap
[2];
142 priv
->ext_cap
= priv
->ext_cap_0c
= 0;
145 * Older firmwares had submodel ID fixed to 0x47
147 if (SYN_ID_FULL(priv
->identity
) < 0x705 &&
148 SYN_CAP_SUBMODEL_ID(priv
->capabilities
) != 0x47) {
153 * Unless capExtended is set the rest of the flags should be ignored
155 if (!SYN_CAP_EXTENDED(priv
->capabilities
))
156 priv
->capabilities
= 0;
158 if (SYN_EXT_CAP_REQUESTS(priv
->capabilities
) >= 1) {
159 if (synaptics_send_cmd(psmouse
, SYN_QUE_EXT_CAPAB
, cap
)) {
160 printk(KERN_ERR
"Synaptics claims to have extended capabilities,"
161 " but I'm not able to read them.\n");
163 priv
->ext_cap
= (cap
[0] << 16) | (cap
[1] << 8) | cap
[2];
166 * if nExtBtn is greater than 8 it should be considered
167 * invalid and treated as 0
169 if (SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
) > 8)
170 priv
->ext_cap
&= 0xff0fff;
174 if (SYN_EXT_CAP_REQUESTS(priv
->capabilities
) >= 4) {
175 if (synaptics_send_cmd(psmouse
, SYN_QUE_EXT_CAPAB_0C
, cap
)) {
176 printk(KERN_ERR
"Synaptics claims to have extended capability 0x0c,"
177 " but I'm not able to read it.\n");
179 priv
->ext_cap_0c
= (cap
[0] << 16) | (cap
[1] << 8) | cap
[2];
188 * See also the SYN_ID_* macros
190 static int synaptics_identify(struct psmouse
*psmouse
)
192 struct synaptics_data
*priv
= psmouse
->private;
195 if (synaptics_send_cmd(psmouse
, SYN_QUE_IDENTIFY
, id
))
197 priv
->identity
= (id
[0]<<16) | (id
[1]<<8) | id
[2];
198 if (SYN_ID_IS_SYNAPTICS(priv
->identity
))
204 * Read touchpad resolution and maximum reported coordinates
205 * Resolution is left zero if touchpad does not support the query
207 static int synaptics_resolution(struct psmouse
*psmouse
)
209 struct synaptics_data
*priv
= psmouse
->private;
210 unsigned char res
[3];
211 unsigned char max
[3];
213 if (SYN_ID_MAJOR(priv
->identity
) < 4)
216 if (synaptics_send_cmd(psmouse
, SYN_QUE_RESOLUTION
, res
) == 0) {
217 if (res
[0] != 0 && (res
[1] & 0x80) && res
[2] != 0) {
218 priv
->x_res
= res
[0]; /* x resolution in units/mm */
219 priv
->y_res
= res
[2]; /* y resolution in units/mm */
223 if (SYN_EXT_CAP_REQUESTS(priv
->capabilities
) >= 5 &&
224 SYN_CAP_MAX_DIMENSIONS(priv
->ext_cap_0c
)) {
225 if (synaptics_send_cmd(psmouse
, SYN_QUE_EXT_DIMENSIONS
, max
)) {
226 printk(KERN_ERR
"Synaptics claims to have dimensions query,"
227 " but I'm not able to read it.\n");
229 priv
->x_max
= (max
[0] << 5) | ((max
[1] & 0x0f) << 1);
230 priv
->y_max
= (max
[2] << 5) | ((max
[1] & 0xf0) >> 3);
237 static int synaptics_query_hardware(struct psmouse
*psmouse
)
239 if (synaptics_identify(psmouse
))
241 if (synaptics_model_id(psmouse
))
243 if (synaptics_capability(psmouse
))
245 if (synaptics_resolution(psmouse
))
251 static int synaptics_set_absolute_mode(struct psmouse
*psmouse
)
253 struct synaptics_data
*priv
= psmouse
->private;
255 priv
->mode
= SYN_BIT_ABSOLUTE_MODE
;
256 if (SYN_ID_MAJOR(priv
->identity
) >= 4)
257 priv
->mode
|= SYN_BIT_DISABLE_GESTURE
;
258 if (SYN_CAP_EXTENDED(priv
->capabilities
))
259 priv
->mode
|= SYN_BIT_W_MODE
;
261 if (synaptics_mode_cmd(psmouse
, priv
->mode
))
267 static void synaptics_set_rate(struct psmouse
*psmouse
, unsigned int rate
)
269 struct synaptics_data
*priv
= psmouse
->private;
272 priv
->mode
|= SYN_BIT_HIGH_RATE
;
275 priv
->mode
&= ~SYN_BIT_HIGH_RATE
;
279 synaptics_mode_cmd(psmouse
, priv
->mode
);
282 /*****************************************************************************
283 * Synaptics pass-through PS/2 port support
284 ****************************************************************************/
285 static int synaptics_pt_write(struct serio
*serio
, unsigned char c
)
287 struct psmouse
*parent
= serio_get_drvdata(serio
->parent
);
288 char rate_param
= SYN_PS_CLIENT_CMD
; /* indicates that we want pass-through port */
290 if (psmouse_sliced_command(parent
, c
))
292 if (ps2_command(&parent
->ps2dev
, &rate_param
, PSMOUSE_CMD_SETRATE
))
297 static int synaptics_pt_start(struct serio
*serio
)
299 struct psmouse
*parent
= serio_get_drvdata(serio
->parent
);
300 struct synaptics_data
*priv
= parent
->private;
302 serio_pause_rx(parent
->ps2dev
.serio
);
303 priv
->pt_port
= serio
;
304 serio_continue_rx(parent
->ps2dev
.serio
);
309 static void synaptics_pt_stop(struct serio
*serio
)
311 struct psmouse
*parent
= serio_get_drvdata(serio
->parent
);
312 struct synaptics_data
*priv
= parent
->private;
314 serio_pause_rx(parent
->ps2dev
.serio
);
315 priv
->pt_port
= NULL
;
316 serio_continue_rx(parent
->ps2dev
.serio
);
319 static int synaptics_is_pt_packet(unsigned char *buf
)
321 return (buf
[0] & 0xFC) == 0x84 && (buf
[3] & 0xCC) == 0xC4;
324 static void synaptics_pass_pt_packet(struct serio
*ptport
, unsigned char *packet
)
326 struct psmouse
*child
= serio_get_drvdata(ptport
);
328 if (child
&& child
->state
== PSMOUSE_ACTIVATED
) {
329 serio_interrupt(ptport
, packet
[1], 0);
330 serio_interrupt(ptport
, packet
[4], 0);
331 serio_interrupt(ptport
, packet
[5], 0);
332 if (child
->pktsize
== 4)
333 serio_interrupt(ptport
, packet
[2], 0);
335 serio_interrupt(ptport
, packet
[1], 0);
338 static void synaptics_pt_activate(struct psmouse
*psmouse
)
340 struct synaptics_data
*priv
= psmouse
->private;
341 struct psmouse
*child
= serio_get_drvdata(priv
->pt_port
);
343 /* adjust the touchpad to child's choice of protocol */
345 if (child
->pktsize
== 4)
346 priv
->mode
|= SYN_BIT_FOUR_BYTE_CLIENT
;
348 priv
->mode
&= ~SYN_BIT_FOUR_BYTE_CLIENT
;
350 if (synaptics_mode_cmd(psmouse
, priv
->mode
))
351 printk(KERN_INFO
"synaptics: failed to switch guest protocol\n");
355 static void synaptics_pt_create(struct psmouse
*psmouse
)
359 serio
= kzalloc(sizeof(struct serio
), GFP_KERNEL
);
361 printk(KERN_ERR
"synaptics: not enough memory to allocate pass-through port\n");
365 serio
->id
.type
= SERIO_PS_PSTHRU
;
366 strlcpy(serio
->name
, "Synaptics pass-through", sizeof(serio
->name
));
367 strlcpy(serio
->phys
, "synaptics-pt/serio0", sizeof(serio
->name
));
368 serio
->write
= synaptics_pt_write
;
369 serio
->start
= synaptics_pt_start
;
370 serio
->stop
= synaptics_pt_stop
;
371 serio
->parent
= psmouse
->ps2dev
.serio
;
373 psmouse
->pt_activate
= synaptics_pt_activate
;
375 printk(KERN_INFO
"serio: %s port at %s\n", serio
->name
, psmouse
->phys
);
376 serio_register_port(serio
);
379 /*****************************************************************************
380 * Functions to interpret the absolute mode packets
381 ****************************************************************************/
383 static void synaptics_parse_hw_state(unsigned char buf
[], struct synaptics_data
*priv
, struct synaptics_hw_state
*hw
)
385 memset(hw
, 0, sizeof(struct synaptics_hw_state
));
387 if (SYN_MODEL_NEWABS(priv
->model_id
)) {
388 hw
->x
= (((buf
[3] & 0x10) << 8) |
389 ((buf
[1] & 0x0f) << 8) |
391 hw
->y
= (((buf
[3] & 0x20) << 7) |
392 ((buf
[1] & 0xf0) << 4) |
396 hw
->w
= (((buf
[0] & 0x30) >> 2) |
397 ((buf
[0] & 0x04) >> 1) |
398 ((buf
[3] & 0x04) >> 2));
400 hw
->left
= (buf
[0] & 0x01) ? 1 : 0;
401 hw
->right
= (buf
[0] & 0x02) ? 1 : 0;
403 if (SYN_CAP_CLICKPAD(priv
->ext_cap_0c
)) {
405 * Clickpad's button is transmitted as middle button,
406 * however, since it is primary button, we will report
409 hw
->left
= ((buf
[0] ^ buf
[3]) & 0x01) ? 1 : 0;
411 } else if (SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
)) {
412 hw
->middle
= ((buf
[0] ^ buf
[3]) & 0x01) ? 1 : 0;
414 hw
->scroll
= (signed char)(buf
[1]);
417 if (SYN_CAP_FOUR_BUTTON(priv
->capabilities
)) {
418 hw
->up
= ((buf
[0] ^ buf
[3]) & 0x01) ? 1 : 0;
419 hw
->down
= ((buf
[0] ^ buf
[3]) & 0x02) ? 1 : 0;
422 if (SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
) &&
423 ((buf
[0] ^ buf
[3]) & 0x02)) {
424 switch (SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
) & ~0x01) {
427 * if nExtBtn is greater than 8 it should be
428 * considered invalid and treated as 0
432 hw
->ext_buttons
|= ((buf
[5] & 0x08)) ? 0x80 : 0;
433 hw
->ext_buttons
|= ((buf
[4] & 0x08)) ? 0x40 : 0;
435 hw
->ext_buttons
|= ((buf
[5] & 0x04)) ? 0x20 : 0;
436 hw
->ext_buttons
|= ((buf
[4] & 0x04)) ? 0x10 : 0;
438 hw
->ext_buttons
|= ((buf
[5] & 0x02)) ? 0x08 : 0;
439 hw
->ext_buttons
|= ((buf
[4] & 0x02)) ? 0x04 : 0;
441 hw
->ext_buttons
|= ((buf
[5] & 0x01)) ? 0x02 : 0;
442 hw
->ext_buttons
|= ((buf
[4] & 0x01)) ? 0x01 : 0;
446 hw
->x
= (((buf
[1] & 0x1f) << 8) | buf
[2]);
447 hw
->y
= (((buf
[4] & 0x1f) << 8) | buf
[5]);
449 hw
->z
= (((buf
[0] & 0x30) << 2) | (buf
[3] & 0x3F));
450 hw
->w
= (((buf
[1] & 0x80) >> 4) | ((buf
[0] & 0x04) >> 1));
452 hw
->left
= (buf
[0] & 0x01) ? 1 : 0;
453 hw
->right
= (buf
[0] & 0x02) ? 1 : 0;
458 * called for each full received packet from the touchpad
460 static void synaptics_process_packet(struct psmouse
*psmouse
)
462 struct input_dev
*dev
= psmouse
->dev
;
463 struct synaptics_data
*priv
= psmouse
->private;
464 struct synaptics_hw_state hw
;
469 synaptics_parse_hw_state(psmouse
->packet
, priv
, &hw
);
472 priv
->scroll
+= hw
.scroll
;
474 while (priv
->scroll
>= 4) {
475 input_report_key(dev
, BTN_BACK
, !hw
.down
);
477 input_report_key(dev
, BTN_BACK
, hw
.down
);
481 while (priv
->scroll
<= -4) {
482 input_report_key(dev
, BTN_FORWARD
, !hw
.up
);
484 input_report_key(dev
, BTN_FORWARD
, hw
.up
);
494 if (SYN_CAP_EXTENDED(priv
->capabilities
)) {
497 if (SYN_CAP_MULTIFINGER(priv
->capabilities
))
498 num_fingers
= hw
.w
+ 2;
501 if (SYN_MODEL_PEN(priv
->model_id
))
502 ; /* Nothing, treat a pen as a single finger */
505 if (SYN_CAP_PALMDETECT(priv
->capabilities
))
516 * BTN_TOUCH has to be first as mousedev relies on it when doing
517 * absolute -> relative conversion
519 if (hw
.z
> 30) input_report_key(dev
, BTN_TOUCH
, 1);
520 if (hw
.z
< 25) input_report_key(dev
, BTN_TOUCH
, 0);
523 input_report_abs(dev
, ABS_X
, hw
.x
);
524 input_report_abs(dev
, ABS_Y
, YMAX_NOMINAL
+ YMIN_NOMINAL
- hw
.y
);
526 input_report_abs(dev
, ABS_PRESSURE
, hw
.z
);
528 if (SYN_CAP_PALMDETECT(priv
->capabilities
))
529 input_report_abs(dev
, ABS_TOOL_WIDTH
, finger_width
);
531 input_report_key(dev
, BTN_TOOL_FINGER
, num_fingers
== 1);
532 input_report_key(dev
, BTN_LEFT
, hw
.left
);
533 input_report_key(dev
, BTN_RIGHT
, hw
.right
);
535 if (SYN_CAP_MULTIFINGER(priv
->capabilities
)) {
536 input_report_key(dev
, BTN_TOOL_DOUBLETAP
, num_fingers
== 2);
537 input_report_key(dev
, BTN_TOOL_TRIPLETAP
, num_fingers
== 3);
540 if (SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
))
541 input_report_key(dev
, BTN_MIDDLE
, hw
.middle
);
543 if (SYN_CAP_FOUR_BUTTON(priv
->capabilities
)) {
544 input_report_key(dev
, BTN_FORWARD
, hw
.up
);
545 input_report_key(dev
, BTN_BACK
, hw
.down
);
548 for (i
= 0; i
< SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
); i
++)
549 input_report_key(dev
, BTN_0
+ i
, hw
.ext_buttons
& (1 << i
));
554 static int synaptics_validate_byte(unsigned char packet
[], int idx
, unsigned char pkt_type
)
556 static const unsigned char newabs_mask
[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
557 static const unsigned char newabs_rel_mask
[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
558 static const unsigned char newabs_rslt
[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
559 static const unsigned char oldabs_mask
[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
560 static const unsigned char oldabs_rslt
[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
562 if (idx
< 0 || idx
> 4)
568 case SYN_NEWABS_RELAXED
:
569 return (packet
[idx
] & newabs_rel_mask
[idx
]) == newabs_rslt
[idx
];
571 case SYN_NEWABS_STRICT
:
572 return (packet
[idx
] & newabs_mask
[idx
]) == newabs_rslt
[idx
];
575 return (packet
[idx
] & oldabs_mask
[idx
]) == oldabs_rslt
[idx
];
578 printk(KERN_ERR
"synaptics: unknown packet type %d\n", pkt_type
);
583 static unsigned char synaptics_detect_pkt_type(struct psmouse
*psmouse
)
587 for (i
= 0; i
< 5; i
++)
588 if (!synaptics_validate_byte(psmouse
->packet
, i
, SYN_NEWABS_STRICT
)) {
589 printk(KERN_INFO
"synaptics: using relaxed packet validation\n");
590 return SYN_NEWABS_RELAXED
;
593 return SYN_NEWABS_STRICT
;
596 static psmouse_ret_t
synaptics_process_byte(struct psmouse
*psmouse
)
598 struct synaptics_data
*priv
= psmouse
->private;
600 if (psmouse
->pktcnt
>= 6) { /* Full packet received */
601 if (unlikely(priv
->pkt_type
== SYN_NEWABS
))
602 priv
->pkt_type
= synaptics_detect_pkt_type(psmouse
);
604 if (SYN_CAP_PASS_THROUGH(priv
->capabilities
) &&
605 synaptics_is_pt_packet(psmouse
->packet
)) {
607 synaptics_pass_pt_packet(priv
->pt_port
, psmouse
->packet
);
609 synaptics_process_packet(psmouse
);
611 return PSMOUSE_FULL_PACKET
;
614 return synaptics_validate_byte(psmouse
->packet
, psmouse
->pktcnt
- 1, priv
->pkt_type
) ?
615 PSMOUSE_GOOD_DATA
: PSMOUSE_BAD_DATA
;
618 /*****************************************************************************
619 * Driver initialization/cleanup functions
620 ****************************************************************************/
621 static void set_input_params(struct input_dev
*dev
, struct synaptics_data
*priv
)
625 __set_bit(EV_ABS
, dev
->evbit
);
626 input_set_abs_params(dev
, ABS_X
,
627 XMIN_NOMINAL
, priv
->x_max
?: XMAX_NOMINAL
, 0, 0);
628 input_set_abs_params(dev
, ABS_Y
,
629 YMIN_NOMINAL
, priv
->y_max
?: YMAX_NOMINAL
, 0, 0);
630 input_set_abs_params(dev
, ABS_PRESSURE
, 0, 255, 0, 0);
632 if (SYN_CAP_PALMDETECT(priv
->capabilities
))
633 input_set_abs_params(dev
, ABS_TOOL_WIDTH
, 0, 15, 0, 0);
635 __set_bit(EV_KEY
, dev
->evbit
);
636 __set_bit(BTN_TOUCH
, dev
->keybit
);
637 __set_bit(BTN_TOOL_FINGER
, dev
->keybit
);
638 __set_bit(BTN_LEFT
, dev
->keybit
);
639 __set_bit(BTN_RIGHT
, dev
->keybit
);
641 if (SYN_CAP_MULTIFINGER(priv
->capabilities
)) {
642 __set_bit(BTN_TOOL_DOUBLETAP
, dev
->keybit
);
643 __set_bit(BTN_TOOL_TRIPLETAP
, dev
->keybit
);
646 if (SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
))
647 __set_bit(BTN_MIDDLE
, dev
->keybit
);
649 if (SYN_CAP_FOUR_BUTTON(priv
->capabilities
) ||
650 SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
)) {
651 __set_bit(BTN_FORWARD
, dev
->keybit
);
652 __set_bit(BTN_BACK
, dev
->keybit
);
655 for (i
= 0; i
< SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
); i
++)
656 __set_bit(BTN_0
+ i
, dev
->keybit
);
658 __clear_bit(EV_REL
, dev
->evbit
);
659 __clear_bit(REL_X
, dev
->relbit
);
660 __clear_bit(REL_Y
, dev
->relbit
);
662 input_abs_set_res(dev
, ABS_X
, priv
->x_res
);
663 input_abs_set_res(dev
, ABS_Y
, priv
->y_res
);
665 if (SYN_CAP_CLICKPAD(priv
->ext_cap_0c
)) {
666 /* Clickpads report only left button */
667 __clear_bit(BTN_RIGHT
, dev
->keybit
);
668 __clear_bit(BTN_MIDDLE
, dev
->keybit
);
672 static void synaptics_disconnect(struct psmouse
*psmouse
)
674 synaptics_reset(psmouse
);
675 kfree(psmouse
->private);
676 psmouse
->private = NULL
;
679 static int synaptics_reconnect(struct psmouse
*psmouse
)
681 struct synaptics_data
*priv
= psmouse
->private;
682 struct synaptics_data old_priv
= *priv
;
684 psmouse_reset(psmouse
);
686 if (synaptics_detect(psmouse
, 0))
689 if (synaptics_query_hardware(psmouse
)) {
690 printk(KERN_ERR
"Unable to query Synaptics hardware.\n");
694 if (old_priv
.identity
!= priv
->identity
||
695 old_priv
.model_id
!= priv
->model_id
||
696 old_priv
.capabilities
!= priv
->capabilities
||
697 old_priv
.ext_cap
!= priv
->ext_cap
)
700 if (synaptics_set_absolute_mode(psmouse
)) {
701 printk(KERN_ERR
"Unable to initialize Synaptics hardware.\n");
708 static bool impaired_toshiba_kbc
;
710 static const struct dmi_system_id __initconst toshiba_dmi_table
[] = {
711 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
713 /* Toshiba Satellite */
715 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
716 DMI_MATCH(DMI_PRODUCT_NAME
, "Satellite"),
720 /* Toshiba Dynabook */
722 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
723 DMI_MATCH(DMI_PRODUCT_NAME
, "dynabook"),
727 /* Toshiba Portege M300 */
729 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
730 DMI_MATCH(DMI_PRODUCT_NAME
, "PORTEGE M300"),
735 /* Toshiba Portege M300 */
737 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
738 DMI_MATCH(DMI_PRODUCT_NAME
, "Portable PC"),
739 DMI_MATCH(DMI_PRODUCT_VERSION
, "Version 1.0"),
747 void __init
synaptics_module_init(void)
749 impaired_toshiba_kbc
= dmi_check_system(toshiba_dmi_table
);
752 int synaptics_init(struct psmouse
*psmouse
)
754 struct synaptics_data
*priv
;
756 psmouse
->private = priv
= kzalloc(sizeof(struct synaptics_data
), GFP_KERNEL
);
760 psmouse_reset(psmouse
);
762 if (synaptics_query_hardware(psmouse
)) {
763 printk(KERN_ERR
"Unable to query Synaptics hardware.\n");
767 if (synaptics_set_absolute_mode(psmouse
)) {
768 printk(KERN_ERR
"Unable to initialize Synaptics hardware.\n");
772 priv
->pkt_type
= SYN_MODEL_NEWABS(priv
->model_id
) ? SYN_NEWABS
: SYN_OLDABS
;
774 printk(KERN_INFO
"Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n",
775 SYN_ID_MODEL(priv
->identity
),
776 SYN_ID_MAJOR(priv
->identity
), SYN_ID_MINOR(priv
->identity
),
777 priv
->model_id
, priv
->capabilities
, priv
->ext_cap
, priv
->ext_cap_0c
);
779 set_input_params(psmouse
->dev
, priv
);
782 * Encode touchpad model so that it can be used to set
783 * input device->id.version and be visible to userspace.
784 * Because version is __u16 we have to drop something.
785 * Hardware info bits seem to be good candidates as they
786 * are documented to be for Synaptics corp. internal use.
788 psmouse
->model
= ((priv
->model_id
& 0x00ff0000) >> 8) |
789 (priv
->model_id
& 0x000000ff);
791 psmouse
->protocol_handler
= synaptics_process_byte
;
792 psmouse
->set_rate
= synaptics_set_rate
;
793 psmouse
->disconnect
= synaptics_disconnect
;
794 psmouse
->reconnect
= synaptics_reconnect
;
795 psmouse
->cleanup
= synaptics_reset
;
796 psmouse
->pktsize
= 6;
797 /* Synaptics can usually stay in sync without extra help */
798 psmouse
->resync_time
= 0;
800 if (SYN_CAP_PASS_THROUGH(priv
->capabilities
))
801 synaptics_pt_create(psmouse
);
804 * Toshiba's KBC seems to have trouble handling data from
805 * Synaptics at full rate. Switch to a lower rate (roughly
806 * the same rate as a standard PS/2 mouse).
808 if (psmouse
->rate
>= 80 && impaired_toshiba_kbc
) {
809 printk(KERN_INFO
"synaptics: Toshiba %s detected, limiting rate to 40pps.\n",
810 dmi_get_system_info(DMI_PRODUCT_NAME
));
821 bool synaptics_supported(void)
826 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */
828 void __init
synaptics_module_init(void)
832 int synaptics_init(struct psmouse
*psmouse
)
837 bool synaptics_supported(void)
842 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */