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 */