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 inline int synaptics_is_pt_packet(unsigned char *buf
)
299 return (buf
[0] & 0xFC) == 0x84 && (buf
[3] & 0xCC) == 0xC4;
302 static void synaptics_pass_pt_packet(struct serio
*ptport
, unsigned char *packet
)
304 struct psmouse
*child
= serio_get_drvdata(ptport
);
306 if (child
&& child
->state
== PSMOUSE_ACTIVATED
) {
307 serio_interrupt(ptport
, packet
[1], 0);
308 serio_interrupt(ptport
, packet
[4], 0);
309 serio_interrupt(ptport
, packet
[5], 0);
310 if (child
->pktsize
== 4)
311 serio_interrupt(ptport
, packet
[2], 0);
313 serio_interrupt(ptport
, packet
[1], 0);
316 static void synaptics_pt_activate(struct psmouse
*psmouse
)
318 struct serio
*ptport
= psmouse
->ps2dev
.serio
->child
;
319 struct psmouse
*child
= serio_get_drvdata(ptport
);
320 struct synaptics_data
*priv
= psmouse
->private;
322 /* adjust the touchpad to child's choice of protocol */
324 if (child
->pktsize
== 4)
325 priv
->mode
|= SYN_BIT_FOUR_BYTE_CLIENT
;
327 priv
->mode
&= ~SYN_BIT_FOUR_BYTE_CLIENT
;
329 if (synaptics_mode_cmd(psmouse
, priv
->mode
))
330 printk(KERN_INFO
"synaptics: failed to switch guest protocol\n");
334 static void synaptics_pt_create(struct psmouse
*psmouse
)
338 serio
= kzalloc(sizeof(struct serio
), GFP_KERNEL
);
340 printk(KERN_ERR
"synaptics: not enough memory to allocate pass-through port\n");
344 serio
->id
.type
= SERIO_PS_PSTHRU
;
345 strlcpy(serio
->name
, "Synaptics pass-through", sizeof(serio
->name
));
346 strlcpy(serio
->phys
, "synaptics-pt/serio0", sizeof(serio
->name
));
347 serio
->write
= synaptics_pt_write
;
348 serio
->parent
= psmouse
->ps2dev
.serio
;
350 psmouse
->pt_activate
= synaptics_pt_activate
;
352 printk(KERN_INFO
"serio: %s port at %s\n", serio
->name
, psmouse
->phys
);
353 serio_register_port(serio
);
356 /*****************************************************************************
357 * Functions to interpret the absolute mode packets
358 ****************************************************************************/
360 static void synaptics_parse_hw_state(unsigned char buf
[], struct synaptics_data
*priv
, struct synaptics_hw_state
*hw
)
362 memset(hw
, 0, sizeof(struct synaptics_hw_state
));
364 if (SYN_MODEL_NEWABS(priv
->model_id
)) {
365 hw
->x
= (((buf
[3] & 0x10) << 8) |
366 ((buf
[1] & 0x0f) << 8) |
368 hw
->y
= (((buf
[3] & 0x20) << 7) |
369 ((buf
[1] & 0xf0) << 4) |
373 hw
->w
= (((buf
[0] & 0x30) >> 2) |
374 ((buf
[0] & 0x04) >> 1) |
375 ((buf
[3] & 0x04) >> 2));
377 hw
->left
= (buf
[0] & 0x01) ? 1 : 0;
378 hw
->right
= (buf
[0] & 0x02) ? 1 : 0;
380 if (SYN_CAP_CLICKPAD(priv
->ext_cap_0c
)) {
382 * Clickpad's button is transmitted as middle button,
383 * however, since it is primary button, we will report
386 hw
->left
= ((buf
[0] ^ buf
[3]) & 0x01) ? 1 : 0;
388 } else if (SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
)) {
389 hw
->middle
= ((buf
[0] ^ buf
[3]) & 0x01) ? 1 : 0;
391 hw
->scroll
= (signed char)(buf
[1]);
394 if (SYN_CAP_FOUR_BUTTON(priv
->capabilities
)) {
395 hw
->up
= ((buf
[0] ^ buf
[3]) & 0x01) ? 1 : 0;
396 hw
->down
= ((buf
[0] ^ buf
[3]) & 0x02) ? 1 : 0;
399 if (SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
) &&
400 ((buf
[0] ^ buf
[3]) & 0x02)) {
401 switch (SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
) & ~0x01) {
404 * if nExtBtn is greater than 8 it should be
405 * considered invalid and treated as 0
409 hw
->ext_buttons
|= ((buf
[5] & 0x08)) ? 0x80 : 0;
410 hw
->ext_buttons
|= ((buf
[4] & 0x08)) ? 0x40 : 0;
412 hw
->ext_buttons
|= ((buf
[5] & 0x04)) ? 0x20 : 0;
413 hw
->ext_buttons
|= ((buf
[4] & 0x04)) ? 0x10 : 0;
415 hw
->ext_buttons
|= ((buf
[5] & 0x02)) ? 0x08 : 0;
416 hw
->ext_buttons
|= ((buf
[4] & 0x02)) ? 0x04 : 0;
418 hw
->ext_buttons
|= ((buf
[5] & 0x01)) ? 0x02 : 0;
419 hw
->ext_buttons
|= ((buf
[4] & 0x01)) ? 0x01 : 0;
423 hw
->x
= (((buf
[1] & 0x1f) << 8) | buf
[2]);
424 hw
->y
= (((buf
[4] & 0x1f) << 8) | buf
[5]);
426 hw
->z
= (((buf
[0] & 0x30) << 2) | (buf
[3] & 0x3F));
427 hw
->w
= (((buf
[1] & 0x80) >> 4) | ((buf
[0] & 0x04) >> 1));
429 hw
->left
= (buf
[0] & 0x01) ? 1 : 0;
430 hw
->right
= (buf
[0] & 0x02) ? 1 : 0;
435 * called for each full received packet from the touchpad
437 static void synaptics_process_packet(struct psmouse
*psmouse
)
439 struct input_dev
*dev
= psmouse
->dev
;
440 struct synaptics_data
*priv
= psmouse
->private;
441 struct synaptics_hw_state hw
;
446 synaptics_parse_hw_state(psmouse
->packet
, priv
, &hw
);
449 priv
->scroll
+= hw
.scroll
;
451 while (priv
->scroll
>= 4) {
452 input_report_key(dev
, BTN_BACK
, !hw
.down
);
454 input_report_key(dev
, BTN_BACK
, hw
.down
);
458 while (priv
->scroll
<= -4) {
459 input_report_key(dev
, BTN_FORWARD
, !hw
.up
);
461 input_report_key(dev
, BTN_FORWARD
, hw
.up
);
471 if (SYN_CAP_EXTENDED(priv
->capabilities
)) {
474 if (SYN_CAP_MULTIFINGER(priv
->capabilities
))
475 num_fingers
= hw
.w
+ 2;
478 if (SYN_MODEL_PEN(priv
->model_id
))
479 ; /* Nothing, treat a pen as a single finger */
482 if (SYN_CAP_PALMDETECT(priv
->capabilities
))
493 * BTN_TOUCH has to be first as mousedev relies on it when doing
494 * absolute -> relative conversion
496 if (hw
.z
> 30) input_report_key(dev
, BTN_TOUCH
, 1);
497 if (hw
.z
< 25) input_report_key(dev
, BTN_TOUCH
, 0);
500 input_report_abs(dev
, ABS_X
, hw
.x
);
501 input_report_abs(dev
, ABS_Y
, YMAX_NOMINAL
+ YMIN_NOMINAL
- hw
.y
);
503 input_report_abs(dev
, ABS_PRESSURE
, hw
.z
);
505 input_report_abs(dev
, ABS_TOOL_WIDTH
, finger_width
);
506 input_report_key(dev
, BTN_TOOL_FINGER
, num_fingers
== 1);
507 input_report_key(dev
, BTN_LEFT
, hw
.left
);
508 input_report_key(dev
, BTN_RIGHT
, hw
.right
);
510 if (SYN_CAP_MULTIFINGER(priv
->capabilities
)) {
511 input_report_key(dev
, BTN_TOOL_DOUBLETAP
, num_fingers
== 2);
512 input_report_key(dev
, BTN_TOOL_TRIPLETAP
, num_fingers
== 3);
515 if (SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
))
516 input_report_key(dev
, BTN_MIDDLE
, hw
.middle
);
518 if (SYN_CAP_FOUR_BUTTON(priv
->capabilities
)) {
519 input_report_key(dev
, BTN_FORWARD
, hw
.up
);
520 input_report_key(dev
, BTN_BACK
, hw
.down
);
523 for (i
= 0; i
< SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
); i
++)
524 input_report_key(dev
, BTN_0
+ i
, hw
.ext_buttons
& (1 << i
));
529 static int synaptics_validate_byte(unsigned char packet
[], int idx
, unsigned char pkt_type
)
531 static const unsigned char newabs_mask
[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
532 static const unsigned char newabs_rel_mask
[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
533 static const unsigned char newabs_rslt
[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
534 static const unsigned char oldabs_mask
[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
535 static const unsigned char oldabs_rslt
[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
537 if (idx
< 0 || idx
> 4)
543 case SYN_NEWABS_RELAXED
:
544 return (packet
[idx
] & newabs_rel_mask
[idx
]) == newabs_rslt
[idx
];
546 case SYN_NEWABS_STRICT
:
547 return (packet
[idx
] & newabs_mask
[idx
]) == newabs_rslt
[idx
];
550 return (packet
[idx
] & oldabs_mask
[idx
]) == oldabs_rslt
[idx
];
553 printk(KERN_ERR
"synaptics: unknown packet type %d\n", pkt_type
);
558 static unsigned char synaptics_detect_pkt_type(struct psmouse
*psmouse
)
562 for (i
= 0; i
< 5; i
++)
563 if (!synaptics_validate_byte(psmouse
->packet
, i
, SYN_NEWABS_STRICT
)) {
564 printk(KERN_INFO
"synaptics: using relaxed packet validation\n");
565 return SYN_NEWABS_RELAXED
;
568 return SYN_NEWABS_STRICT
;
571 static psmouse_ret_t
synaptics_process_byte(struct psmouse
*psmouse
)
573 struct synaptics_data
*priv
= psmouse
->private;
575 if (psmouse
->pktcnt
>= 6) { /* Full packet received */
576 if (unlikely(priv
->pkt_type
== SYN_NEWABS
))
577 priv
->pkt_type
= synaptics_detect_pkt_type(psmouse
);
579 if (SYN_CAP_PASS_THROUGH(priv
->capabilities
) && synaptics_is_pt_packet(psmouse
->packet
)) {
580 if (psmouse
->ps2dev
.serio
->child
)
581 synaptics_pass_pt_packet(psmouse
->ps2dev
.serio
->child
, psmouse
->packet
);
583 synaptics_process_packet(psmouse
);
585 return PSMOUSE_FULL_PACKET
;
588 return synaptics_validate_byte(psmouse
->packet
, psmouse
->pktcnt
- 1, priv
->pkt_type
) ?
589 PSMOUSE_GOOD_DATA
: PSMOUSE_BAD_DATA
;
592 /*****************************************************************************
593 * Driver initialization/cleanup functions
594 ****************************************************************************/
595 static void set_input_params(struct input_dev
*dev
, struct synaptics_data
*priv
)
599 __set_bit(EV_ABS
, dev
->evbit
);
600 input_set_abs_params(dev
, ABS_X
,
601 XMIN_NOMINAL
, priv
->x_max
?: XMAX_NOMINAL
, 0, 0);
602 input_set_abs_params(dev
, ABS_Y
,
603 YMIN_NOMINAL
, priv
->y_max
?: YMAX_NOMINAL
, 0, 0);
604 input_set_abs_params(dev
, ABS_PRESSURE
, 0, 255, 0, 0);
605 __set_bit(ABS_TOOL_WIDTH
, dev
->absbit
);
607 __set_bit(EV_KEY
, dev
->evbit
);
608 __set_bit(BTN_TOUCH
, dev
->keybit
);
609 __set_bit(BTN_TOOL_FINGER
, dev
->keybit
);
610 __set_bit(BTN_LEFT
, dev
->keybit
);
611 __set_bit(BTN_RIGHT
, dev
->keybit
);
613 if (SYN_CAP_MULTIFINGER(priv
->capabilities
)) {
614 __set_bit(BTN_TOOL_DOUBLETAP
, dev
->keybit
);
615 __set_bit(BTN_TOOL_TRIPLETAP
, dev
->keybit
);
618 if (SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
))
619 __set_bit(BTN_MIDDLE
, dev
->keybit
);
621 if (SYN_CAP_FOUR_BUTTON(priv
->capabilities
) ||
622 SYN_CAP_MIDDLE_BUTTON(priv
->capabilities
)) {
623 __set_bit(BTN_FORWARD
, dev
->keybit
);
624 __set_bit(BTN_BACK
, dev
->keybit
);
627 for (i
= 0; i
< SYN_CAP_MULTI_BUTTON_NO(priv
->ext_cap
); i
++)
628 __set_bit(BTN_0
+ i
, dev
->keybit
);
630 __clear_bit(EV_REL
, dev
->evbit
);
631 __clear_bit(REL_X
, dev
->relbit
);
632 __clear_bit(REL_Y
, dev
->relbit
);
634 dev
->absres
[ABS_X
] = priv
->x_res
;
635 dev
->absres
[ABS_Y
] = priv
->y_res
;
637 if (SYN_CAP_CLICKPAD(priv
->ext_cap_0c
)) {
638 /* Clickpads report only left button */
639 __clear_bit(BTN_RIGHT
, dev
->keybit
);
640 __clear_bit(BTN_MIDDLE
, dev
->keybit
);
644 static void synaptics_disconnect(struct psmouse
*psmouse
)
646 synaptics_reset(psmouse
);
647 kfree(psmouse
->private);
648 psmouse
->private = NULL
;
651 static int synaptics_reconnect(struct psmouse
*psmouse
)
653 struct synaptics_data
*priv
= psmouse
->private;
654 struct synaptics_data old_priv
= *priv
;
656 psmouse_reset(psmouse
);
658 if (synaptics_detect(psmouse
, 0))
661 if (synaptics_query_hardware(psmouse
)) {
662 printk(KERN_ERR
"Unable to query Synaptics hardware.\n");
666 if (old_priv
.identity
!= priv
->identity
||
667 old_priv
.model_id
!= priv
->model_id
||
668 old_priv
.capabilities
!= priv
->capabilities
||
669 old_priv
.ext_cap
!= priv
->ext_cap
)
672 if (synaptics_set_absolute_mode(psmouse
)) {
673 printk(KERN_ERR
"Unable to initialize Synaptics hardware.\n");
680 static bool impaired_toshiba_kbc
;
682 static const struct dmi_system_id __initconst toshiba_dmi_table
[] = {
683 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
685 /* Toshiba Satellite */
687 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
688 DMI_MATCH(DMI_PRODUCT_NAME
, "Satellite"),
692 /* Toshiba Dynabook */
694 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
695 DMI_MATCH(DMI_PRODUCT_NAME
, "dynabook"),
699 /* Toshiba Portege M300 */
701 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
702 DMI_MATCH(DMI_PRODUCT_NAME
, "PORTEGE M300"),
707 /* Toshiba Portege M300 */
709 DMI_MATCH(DMI_SYS_VENDOR
, "TOSHIBA"),
710 DMI_MATCH(DMI_PRODUCT_NAME
, "Portable PC"),
711 DMI_MATCH(DMI_PRODUCT_VERSION
, "Version 1.0"),
719 void __init
synaptics_module_init(void)
721 impaired_toshiba_kbc
= dmi_check_system(toshiba_dmi_table
);
724 int synaptics_init(struct psmouse
*psmouse
)
726 struct synaptics_data
*priv
;
728 psmouse
->private = priv
= kzalloc(sizeof(struct synaptics_data
), GFP_KERNEL
);
732 psmouse_reset(psmouse
);
734 if (synaptics_query_hardware(psmouse
)) {
735 printk(KERN_ERR
"Unable to query Synaptics hardware.\n");
739 if (synaptics_set_absolute_mode(psmouse
)) {
740 printk(KERN_ERR
"Unable to initialize Synaptics hardware.\n");
744 priv
->pkt_type
= SYN_MODEL_NEWABS(priv
->model_id
) ? SYN_NEWABS
: SYN_OLDABS
;
746 printk(KERN_INFO
"Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n",
747 SYN_ID_MODEL(priv
->identity
),
748 SYN_ID_MAJOR(priv
->identity
), SYN_ID_MINOR(priv
->identity
),
749 priv
->model_id
, priv
->capabilities
, priv
->ext_cap
, priv
->ext_cap_0c
);
751 set_input_params(psmouse
->dev
, priv
);
754 * Encode touchpad model so that it can be used to set
755 * input device->id.version and be visible to userspace.
756 * Because version is __u16 we have to drop something.
757 * Hardware info bits seem to be good candidates as they
758 * are documented to be for Synaptics corp. internal use.
760 psmouse
->model
= ((priv
->model_id
& 0x00ff0000) >> 8) |
761 (priv
->model_id
& 0x000000ff);
763 psmouse
->protocol_handler
= synaptics_process_byte
;
764 psmouse
->set_rate
= synaptics_set_rate
;
765 psmouse
->disconnect
= synaptics_disconnect
;
766 psmouse
->reconnect
= synaptics_reconnect
;
767 psmouse
->cleanup
= synaptics_reset
;
768 psmouse
->pktsize
= 6;
769 /* Synaptics can usually stay in sync without extra help */
770 psmouse
->resync_time
= 0;
772 if (SYN_CAP_PASS_THROUGH(priv
->capabilities
))
773 synaptics_pt_create(psmouse
);
776 * Toshiba's KBC seems to have trouble handling data from
777 * Synaptics as full rate, switch to lower rate which is roughly
778 * thye same as rate of standard PS/2 mouse.
780 if (psmouse
->rate
>= 80 && impaired_toshiba_kbc
) {
781 printk(KERN_INFO
"synaptics: Toshiba %s detected, limiting rate to 40pps.\n",
782 dmi_get_system_info(DMI_PRODUCT_NAME
));
793 bool synaptics_supported(void)
798 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */
800 void __init
synaptics_module_init(void)
804 int synaptics_init(struct psmouse
*psmouse
)
809 bool synaptics_supported(void)
814 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */