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.
40 #define XMIN_NOMINAL 1472
41 #define XMAX_NOMINAL 5472
42 #define YMIN_NOMINAL 1408
43 #define YMAX_NOMINAL 4448
46 /*****************************************************************************
47 * Stuff we need even when we do not want native Synaptics support
48 ****************************************************************************/
51 * Set the synaptics touchpad mode byte by special commands
53 static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode)
55 unsigned char param[1];
57 if (psmouse_sliced_command(psmouse, mode))
59 param[0] = SYN_PS_SET_MODE2;
60 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE))
65 int synaptics_detect(struct psmouse *psmouse, bool set_properties)
67 struct ps2dev *ps2dev = &psmouse->ps2dev;
68 unsigned char param[4];
72 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
73 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
74 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
75 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
76 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
82 psmouse->vendor = "Synaptics";
83 psmouse->name = "TouchPad";
89 void synaptics_reset(struct psmouse *psmouse)
91 /* reset touchpad back to relative mode, gestures enabled */
92 synaptics_mode_cmd(psmouse, 0);
95 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS
97 /*****************************************************************************
98 * Synaptics communications functions
99 ****************************************************************************/
102 * Send a command to the synpatics touchpad by special commands
104 static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param)
106 if (psmouse_sliced_command(psmouse, c))
108 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO))
114 * Read the model-id bytes from the touchpad
115 * see also SYN_MODEL_* macros
117 static int synaptics_model_id(struct psmouse *psmouse)
119 struct synaptics_data *priv = psmouse->private;
122 if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi))
124 priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2];
129 * Read the capability-bits from the touchpad
130 * see also the SYN_CAP_* macros
132 static int synaptics_capability(struct psmouse *psmouse)
134 struct synaptics_data *priv = psmouse->private;
135 unsigned char cap[3];
137 if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
139 priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
140 priv->ext_cap = priv->ext_cap_0c = 0;
142 if (!SYN_CAP_VALID(priv->capabilities))
146 * Unless capExtended is set the rest of the flags should be ignored
148 if (!SYN_CAP_EXTENDED(priv->capabilities))
149 priv->capabilities = 0;
151 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
152 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
153 printk(KERN_ERR "Synaptics claims to have extended capabilities,"
154 " but I'm not able to read them.\n");
156 priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
159 * if nExtBtn is greater than 8 it should be considered
160 * invalid and treated as 0
162 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8)
163 priv->ext_cap &= 0xff0fff;
167 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) {
168 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) {
169 printk(KERN_ERR "Synaptics claims to have extended capability 0x0c,"
170 " but I'm not able to read it.\n");
172 priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2];
181 * See also the SYN_ID_* macros
183 static int synaptics_identify(struct psmouse *psmouse)
185 struct synaptics_data *priv = psmouse->private;
188 if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id))
190 priv->identity = (id[0]<<16) | (id[1]<<8) | id[2];
191 if (SYN_ID_IS_SYNAPTICS(priv->identity))
197 * Read touchpad resolution
198 * Resolution is left zero if touchpad does not support the query
200 static int synaptics_resolution(struct psmouse *psmouse)
202 struct synaptics_data *priv = psmouse->private;
203 unsigned char res[3];
205 if (SYN_ID_MAJOR(priv->identity) < 4)
208 if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, res))
211 if ((res[0] != 0) && (res[1] & 0x80) && (res[2] != 0)) {
212 priv->x_res = res[0]; /* x resolution in units/mm */
213 priv->y_res = res[2]; /* y resolution in units/mm */
219 static int synaptics_query_hardware(struct psmouse *psmouse)
221 if (synaptics_identify(psmouse))
223 if (synaptics_model_id(psmouse))
225 if (synaptics_capability(psmouse))
227 if (synaptics_resolution(psmouse))
233 static int synaptics_set_absolute_mode(struct psmouse *psmouse)
235 struct synaptics_data *priv = psmouse->private;
237 priv->mode = SYN_BIT_ABSOLUTE_MODE;
238 if (SYN_ID_MAJOR(priv->identity) >= 4)
239 priv->mode |= SYN_BIT_DISABLE_GESTURE;
240 if (SYN_CAP_EXTENDED(priv->capabilities))
241 priv->mode |= SYN_BIT_W_MODE;
243 if (synaptics_mode_cmd(psmouse, priv->mode))
249 static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate)
251 struct synaptics_data *priv = psmouse->private;
254 priv->mode |= SYN_BIT_HIGH_RATE;
257 priv->mode &= ~SYN_BIT_HIGH_RATE;
261 synaptics_mode_cmd(psmouse, priv->mode);
264 /*****************************************************************************
265 * Synaptics pass-through PS/2 port support
266 ****************************************************************************/
267 static int synaptics_pt_write(struct serio *serio, unsigned char c)
269 struct psmouse *parent = serio_get_drvdata(serio->parent);
270 char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */
272 if (psmouse_sliced_command(parent, c))
274 if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE))
279 static inline int synaptics_is_pt_packet(unsigned char *buf)
281 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
284 static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet)
286 struct psmouse *child = serio_get_drvdata(ptport);
288 if (child && child->state == PSMOUSE_ACTIVATED) {
289 serio_interrupt(ptport, packet[1], 0);
290 serio_interrupt(ptport, packet[4], 0);
291 serio_interrupt(ptport, packet[5], 0);
292 if (child->pktsize == 4)
293 serio_interrupt(ptport, packet[2], 0);
295 serio_interrupt(ptport, packet[1], 0);
298 static void synaptics_pt_activate(struct psmouse *psmouse)
300 struct serio *ptport = psmouse->ps2dev.serio->child;
301 struct psmouse *child = serio_get_drvdata(ptport);
302 struct synaptics_data *priv = psmouse->private;
304 /* adjust the touchpad to child's choice of protocol */
306 if (child->pktsize == 4)
307 priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT;
309 priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT;
311 if (synaptics_mode_cmd(psmouse, priv->mode))
312 printk(KERN_INFO "synaptics: failed to switch guest protocol\n");
316 static void synaptics_pt_create(struct psmouse *psmouse)
320 serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
322 printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n");
326 serio->id.type = SERIO_PS_PSTHRU;
327 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
328 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
329 serio->write = synaptics_pt_write;
330 serio->parent = psmouse->ps2dev.serio;
332 psmouse->pt_activate = synaptics_pt_activate;
334 printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys);
335 serio_register_port(serio);
338 /*****************************************************************************
339 * Functions to interpret the absolute mode packets
340 ****************************************************************************/
342 static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw)
344 memset(hw, 0, sizeof(struct synaptics_hw_state));
346 if (SYN_MODEL_NEWABS(priv->model_id)) {
347 hw->x = (((buf[3] & 0x10) << 8) |
348 ((buf[1] & 0x0f) << 8) |
350 hw->y = (((buf[3] & 0x20) << 7) |
351 ((buf[1] & 0xf0) << 4) |
355 hw->w = (((buf[0] & 0x30) >> 2) |
356 ((buf[0] & 0x04) >> 1) |
357 ((buf[3] & 0x04) >> 2));
359 hw->left = (buf[0] & 0x01) ? 1 : 0;
360 hw->right = (buf[0] & 0x02) ? 1 : 0;
362 if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
364 * Clickpad's button is transmitted as middle button,
365 * however, since it is primary button, we will report
368 hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
370 } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
371 hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
373 hw->scroll = (signed char)(buf[1]);
376 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
377 hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
378 hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
381 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
382 ((buf[0] ^ buf[3]) & 0x02)) {
383 switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
386 * if nExtBtn is greater than 8 it should be
387 * considered invalid and treated as 0
391 hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0;
392 hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0;
394 hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0;
395 hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0;
397 hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0;
398 hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0;
400 hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0;
401 hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0;
405 hw->x = (((buf[1] & 0x1f) << 8) | buf[2]);
406 hw->y = (((buf[4] & 0x1f) << 8) | buf[5]);
408 hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F));
409 hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1));
411 hw->left = (buf[0] & 0x01) ? 1 : 0;
412 hw->right = (buf[0] & 0x02) ? 1 : 0;
417 * called for each full received packet from the touchpad
419 static void synaptics_process_packet(struct psmouse *psmouse)
421 struct input_dev *dev = psmouse->dev;
422 struct synaptics_data *priv = psmouse->private;
423 struct synaptics_hw_state hw;
428 synaptics_parse_hw_state(psmouse->packet, priv, &hw);
431 priv->scroll += hw.scroll;
433 while (priv->scroll >= 4) {
434 input_report_key(dev, BTN_BACK, !hw.down);
436 input_report_key(dev, BTN_BACK, hw.down);
440 while (priv->scroll <= -4) {
441 input_report_key(dev, BTN_FORWARD, !hw.up);
443 input_report_key(dev, BTN_FORWARD, hw.up);
453 if (SYN_CAP_EXTENDED(priv->capabilities)) {
456 if (SYN_CAP_MULTIFINGER(priv->capabilities))
457 num_fingers = hw.w + 2;
460 if (SYN_MODEL_PEN(priv->model_id))
461 ; /* Nothing, treat a pen as a single finger */
464 if (SYN_CAP_PALMDETECT(priv->capabilities))
475 * BTN_TOUCH has to be first as mousedev relies on it when doing
476 * absolute -> relative conversion
478 if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1);
479 if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0);
482 input_report_abs(dev, ABS_X, hw.x);
483 input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y);
485 input_report_abs(dev, ABS_PRESSURE, hw.z);
487 input_report_abs(dev, ABS_TOOL_WIDTH, finger_width);
488 input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1);
489 input_report_key(dev, BTN_LEFT, hw.left);
490 input_report_key(dev, BTN_RIGHT, hw.right);
492 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
493 input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
494 input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
497 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
498 input_report_key(dev, BTN_MIDDLE, hw.middle);
500 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
501 input_report_key(dev, BTN_FORWARD, hw.up);
502 input_report_key(dev, BTN_BACK, hw.down);
505 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
506 input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i));
511 static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type)
513 static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
514 static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
515 static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
516 static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
517 static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
519 if (idx < 0 || idx > 4)
524 case SYN_NEWABS_RELAXED:
525 return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx];
527 case SYN_NEWABS_STRICT:
528 return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx];
531 return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx];
534 printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type);
539 static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse)
543 for (i = 0; i < 5; i++)
544 if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) {
545 printk(KERN_INFO "synaptics: using relaxed packet validation\n");
546 return SYN_NEWABS_RELAXED;
549 return SYN_NEWABS_STRICT;
552 static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
554 struct synaptics_data *priv = psmouse->private;
556 if (psmouse->pktcnt >= 6) { /* Full packet received */
557 if (unlikely(priv->pkt_type == SYN_NEWABS))
558 priv->pkt_type = synaptics_detect_pkt_type(psmouse);
560 if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) {
561 if (psmouse->ps2dev.serio->child)
562 synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet);
564 synaptics_process_packet(psmouse);
566 return PSMOUSE_FULL_PACKET;
569 return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ?
570 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
573 /*****************************************************************************
574 * Driver initialization/cleanup functions
575 ****************************************************************************/
576 static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
580 __set_bit(EV_ABS, dev->evbit);
581 input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0);
582 input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0);
583 input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
584 __set_bit(ABS_TOOL_WIDTH, dev->absbit);
586 __set_bit(EV_KEY, dev->evbit);
587 __set_bit(BTN_TOUCH, dev->keybit);
588 __set_bit(BTN_TOOL_FINGER, dev->keybit);
589 __set_bit(BTN_LEFT, dev->keybit);
590 __set_bit(BTN_RIGHT, dev->keybit);
592 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
593 __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
594 __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
597 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
598 __set_bit(BTN_MIDDLE, dev->keybit);
600 if (SYN_CAP_FOUR_BUTTON(priv->capabilities) ||
601 SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
602 __set_bit(BTN_FORWARD, dev->keybit);
603 __set_bit(BTN_BACK, dev->keybit);
606 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
607 __set_bit(BTN_0 + i, dev->keybit);
609 __clear_bit(EV_REL, dev->evbit);
610 __clear_bit(REL_X, dev->relbit);
611 __clear_bit(REL_Y, dev->relbit);
613 dev->absres[ABS_X] = priv->x_res;
614 dev->absres[ABS_Y] = priv->y_res;
616 if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
617 /* Clickpads report only left button */
618 __clear_bit(BTN_RIGHT, dev->keybit);
619 __clear_bit(BTN_MIDDLE, dev->keybit);
623 static void synaptics_disconnect(struct psmouse *psmouse)
625 synaptics_reset(psmouse);
626 kfree(psmouse->private);
627 psmouse->private = NULL;
630 static int synaptics_reconnect(struct psmouse *psmouse)
632 struct synaptics_data *priv = psmouse->private;
633 struct synaptics_data old_priv = *priv;
635 psmouse_reset(psmouse);
637 if (synaptics_detect(psmouse, 0))
640 if (synaptics_query_hardware(psmouse)) {
641 printk(KERN_ERR "Unable to query Synaptics hardware.\n");
645 if (old_priv.identity != priv->identity ||
646 old_priv.model_id != priv->model_id ||
647 old_priv.capabilities != priv->capabilities ||
648 old_priv.ext_cap != priv->ext_cap)
651 if (synaptics_set_absolute_mode(psmouse)) {
652 printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
659 static bool impaired_toshiba_kbc;
661 static const struct dmi_system_id __initconst toshiba_dmi_table[] = {
662 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
664 /* Toshiba Satellite */
666 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
667 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"),
671 /* Toshiba Dynabook */
673 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
674 DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"),
678 /* Toshiba Portege M300 */
680 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
681 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"),
686 /* Toshiba Portege M300 */
688 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
689 DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"),
690 DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"),
698 void __init synaptics_module_init(void)
700 impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table);
703 int synaptics_init(struct psmouse *psmouse)
705 struct synaptics_data *priv;
707 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL);
711 psmouse_reset(psmouse);
713 if (synaptics_query_hardware(psmouse)) {
714 printk(KERN_ERR "Unable to query Synaptics hardware.\n");
718 if (synaptics_set_absolute_mode(psmouse)) {
719 printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
723 priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
725 printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n",
726 SYN_ID_MODEL(priv->identity),
727 SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
728 priv->model_id, priv->capabilities, priv->ext_cap, priv->ext_cap_0c);
730 set_input_params(psmouse->dev, priv);
733 * Encode touchpad model so that it can be used to set
734 * input device->id.version and be visible to userspace.
735 * Because version is __u16 we have to drop something.
736 * Hardware info bits seem to be good candidates as they
737 * are documented to be for Synaptics corp. internal use.
739 psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) |
740 (priv->model_id & 0x000000ff);
742 psmouse->protocol_handler = synaptics_process_byte;
743 psmouse->set_rate = synaptics_set_rate;
744 psmouse->disconnect = synaptics_disconnect;
745 psmouse->reconnect = synaptics_reconnect;
746 psmouse->cleanup = synaptics_reset;
747 psmouse->pktsize = 6;
748 /* Synaptics can usually stay in sync without extra help */
749 psmouse->resync_time = 0;
751 if (SYN_CAP_PASS_THROUGH(priv->capabilities))
752 synaptics_pt_create(psmouse);
755 * Toshiba's KBC seems to have trouble handling data from
756 * Synaptics as full rate, switch to lower rate which is roughly
757 * thye same as rate of standard PS/2 mouse.
759 if (psmouse->rate >= 80 && impaired_toshiba_kbc) {
760 printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n",
761 dmi_get_system_info(DMI_PRODUCT_NAME));
772 bool synaptics_supported(void)
777 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */
779 void __init synaptics_module_init(void)
783 int synaptics_init(struct psmouse *psmouse)
788 bool synaptics_supported(void)
793 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */