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/leds.h>
33 #include <linux/slab.h>
35 #include "synaptics.h"
38 * The x/y limits are taken from the Synaptics TouchPad interfacing Guide,
39 * section 2.3.2, which says that they should be valid regardless of the
40 * actual size of the sensor.
41 * Note that newer firmware allows querying device for maximum useable
44 #define XMIN_NOMINAL 1472
45 #define XMAX_NOMINAL 5472
46 #define YMIN_NOMINAL 1408
47 #define YMAX_NOMINAL 4448
50 * Synaptics touchpads report the y coordinate from bottom to top, which is
51 * opposite from what userspace expects.
52 * This function is used to invert y before reporting.
54 static int synaptics_invert_y(int y)
56 return YMAX_NOMINAL + YMIN_NOMINAL - y;
60 /*****************************************************************************
61 * Stuff we need even when we do not want native Synaptics support
62 ****************************************************************************/
65 * Set the synaptics touchpad mode byte by special commands
67 static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode)
69 unsigned char param[1];
71 if (psmouse_sliced_command(psmouse, mode))
73 param[0] = SYN_PS_SET_MODE2;
74 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE))
79 int synaptics_detect(struct psmouse *psmouse, bool set_properties)
81 struct ps2dev *ps2dev = &psmouse->ps2dev;
82 unsigned char param[4];
86 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
87 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
88 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
89 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
90 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
96 psmouse->vendor = "Synaptics";
97 psmouse->name = "TouchPad";
103 void synaptics_reset(struct psmouse *psmouse)
105 /* reset touchpad back to relative mode, gestures enabled */
106 synaptics_mode_cmd(psmouse, 0);
109 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS
111 /*****************************************************************************
112 * Synaptics communications functions
113 ****************************************************************************/
116 * Send a command to the synpatics touchpad by special commands
118 static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param)
120 if (psmouse_sliced_command(psmouse, c))
122 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO))
128 * Read the model-id bytes from the touchpad
129 * see also SYN_MODEL_* macros
131 static int synaptics_model_id(struct psmouse *psmouse)
133 struct synaptics_data *priv = psmouse->private;
136 if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi))
138 priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2];
143 * Read the capability-bits from the touchpad
144 * see also the SYN_CAP_* macros
146 static int synaptics_capability(struct psmouse *psmouse)
148 struct synaptics_data *priv = psmouse->private;
149 unsigned char cap[3];
151 if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
153 priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
154 priv->ext_cap = priv->ext_cap_0c = 0;
157 * Older firmwares had submodel ID fixed to 0x47
159 if (SYN_ID_FULL(priv->identity) < 0x705 &&
160 SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) {
165 * Unless capExtended is set the rest of the flags should be ignored
167 if (!SYN_CAP_EXTENDED(priv->capabilities))
168 priv->capabilities = 0;
170 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
171 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
172 psmouse_warn(psmouse,
173 "device claims to have extended capabilities, but I'm not able to read them.\n");
175 priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
178 * if nExtBtn is greater than 8 it should be considered
179 * invalid and treated as 0
181 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8)
182 priv->ext_cap &= 0xff0fff;
186 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) {
187 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) {
188 psmouse_warn(psmouse,
189 "device claims to have extended capability 0x0c, but I'm not able to read it.\n");
191 priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2];
200 * See also the SYN_ID_* macros
202 static int synaptics_identify(struct psmouse *psmouse)
204 struct synaptics_data *priv = psmouse->private;
207 if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id))
209 priv->identity = (id[0]<<16) | (id[1]<<8) | id[2];
210 if (SYN_ID_IS_SYNAPTICS(priv->identity))
216 * Read touchpad resolution and maximum reported coordinates
217 * Resolution is left zero if touchpad does not support the query
219 static int synaptics_resolution(struct psmouse *psmouse)
221 struct synaptics_data *priv = psmouse->private;
222 unsigned char resp[3];
224 if (SYN_ID_MAJOR(priv->identity) < 4)
227 if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) {
228 if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) {
229 priv->x_res = resp[0]; /* x resolution in units/mm */
230 priv->y_res = resp[2]; /* y resolution in units/mm */
234 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 &&
235 SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) {
236 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) {
237 psmouse_warn(psmouse,
238 "device claims to have max coordinates query, but I'm not able to read it.\n");
240 priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
241 priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
245 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 &&
246 SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) {
247 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) {
248 psmouse_warn(psmouse,
249 "device claims to have min coordinates query, but I'm not able to read it.\n");
251 priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
252 priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
259 static int synaptics_query_hardware(struct psmouse *psmouse)
261 if (synaptics_identify(psmouse))
263 if (synaptics_model_id(psmouse))
265 if (synaptics_capability(psmouse))
267 if (synaptics_resolution(psmouse))
273 static int synaptics_set_absolute_mode(struct psmouse *psmouse)
275 struct synaptics_data *priv = psmouse->private;
277 priv->mode = SYN_BIT_ABSOLUTE_MODE;
278 if (SYN_ID_MAJOR(priv->identity) >= 4)
279 priv->mode |= SYN_BIT_DISABLE_GESTURE;
280 if (SYN_CAP_EXTENDED(priv->capabilities))
281 priv->mode |= SYN_BIT_W_MODE;
283 if (synaptics_mode_cmd(psmouse, priv->mode))
289 static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate)
291 struct synaptics_data *priv = psmouse->private;
294 priv->mode |= SYN_BIT_HIGH_RATE;
297 priv->mode &= ~SYN_BIT_HIGH_RATE;
301 synaptics_mode_cmd(psmouse, priv->mode);
304 static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse)
306 static unsigned char param = 0xc8;
307 struct synaptics_data *priv = psmouse->private;
309 if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
310 SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)))
313 if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL))
315 if (ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE))
318 /* Advanced gesture mode also sends multi finger data */
319 priv->capabilities |= BIT(1);
324 /*****************************************************************************
325 * Synaptics pass-through PS/2 port support
326 ****************************************************************************/
327 static int synaptics_pt_write(struct serio *serio, unsigned char c)
329 struct psmouse *parent = serio_get_drvdata(serio->parent);
330 char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */
332 if (psmouse_sliced_command(parent, c))
334 if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE))
339 static int synaptics_pt_start(struct serio *serio)
341 struct psmouse *parent = serio_get_drvdata(serio->parent);
342 struct synaptics_data *priv = parent->private;
344 serio_pause_rx(parent->ps2dev.serio);
345 priv->pt_port = serio;
346 serio_continue_rx(parent->ps2dev.serio);
351 static void synaptics_pt_stop(struct serio *serio)
353 struct psmouse *parent = serio_get_drvdata(serio->parent);
354 struct synaptics_data *priv = parent->private;
356 serio_pause_rx(parent->ps2dev.serio);
357 priv->pt_port = NULL;
358 serio_continue_rx(parent->ps2dev.serio);
361 static int synaptics_is_pt_packet(unsigned char *buf)
363 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
366 static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet)
368 struct psmouse *child = serio_get_drvdata(ptport);
370 if (child && child->state == PSMOUSE_ACTIVATED) {
371 serio_interrupt(ptport, packet[1], 0);
372 serio_interrupt(ptport, packet[4], 0);
373 serio_interrupt(ptport, packet[5], 0);
374 if (child->pktsize == 4)
375 serio_interrupt(ptport, packet[2], 0);
377 serio_interrupt(ptport, packet[1], 0);
380 static void synaptics_pt_activate(struct psmouse *psmouse)
382 struct synaptics_data *priv = psmouse->private;
383 struct psmouse *child = serio_get_drvdata(priv->pt_port);
385 /* adjust the touchpad to child's choice of protocol */
387 if (child->pktsize == 4)
388 priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT;
390 priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT;
392 if (synaptics_mode_cmd(psmouse, priv->mode))
393 psmouse_warn(psmouse,
394 "failed to switch guest protocol\n");
398 static void synaptics_pt_create(struct psmouse *psmouse)
402 serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
405 "not enough memory for pass-through port\n");
409 serio->id.type = SERIO_PS_PSTHRU;
410 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
411 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
412 serio->write = synaptics_pt_write;
413 serio->start = synaptics_pt_start;
414 serio->stop = synaptics_pt_stop;
415 serio->parent = psmouse->ps2dev.serio;
417 psmouse->pt_activate = synaptics_pt_activate;
419 psmouse_info(psmouse, "serio: %s port at %s\n",
420 serio->name, psmouse->phys);
421 serio_register_port(serio);
424 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS_LED
427 * Some Synaptics devices have an embeded LED at the top-left corner.
430 struct synaptics_led {
431 struct psmouse *psmouse;
432 struct work_struct work;
433 struct led_classdev cdev;
436 static void synaptics_set_led(struct psmouse *psmouse, int on)
439 unsigned char cmd = on ? 0x88 : 0x10;
441 ps2_begin_command(&psmouse->ps2dev);
442 if (__ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSCALE11))
444 for (i = 6; i >= 0; i -= 2) {
445 unsigned char d = (cmd >> i) & 3;
446 if (__ps2_command(&psmouse->ps2dev, &d, PSMOUSE_CMD_SETRES))
450 __ps2_command(&psmouse->ps2dev, &cmd, PSMOUSE_CMD_SETRATE);
452 ps2_end_command(&psmouse->ps2dev);
455 static void synaptics_led_work(struct work_struct *work)
457 struct synaptics_led *led;
459 led = container_of(work, struct synaptics_led, work);
460 synaptics_set_led(led->psmouse, led->cdev.brightness);
463 static void synaptics_led_cdev_brightness_set(struct led_classdev *cdev,
464 enum led_brightness value)
466 struct synaptics_led *led;
468 led = container_of(cdev, struct synaptics_led, cdev);
469 schedule_work(&led->work);
472 static void synaptics_sync_led(struct psmouse *psmouse)
474 struct synaptics_data *priv = psmouse->private;
477 synaptics_set_led(psmouse, priv->led->cdev.brightness);
480 static int synaptics_init_led(struct psmouse *psmouse)
482 struct synaptics_data *priv = psmouse->private;
483 struct synaptics_led *led;
486 /* FIXME: LED is supposedly detectable in cap0c[1] 0x20, but it seems
487 * not working on real machines.
488 * So we check the product id to be sure.
490 if (!priv->ext_cap_0c || SYN_CAP_PRODUCT_ID(priv->ext_cap) != 0xe4)
493 printk(KERN_INFO "synaptics: support LED control\n");
494 led = kzalloc(sizeof(struct synaptics_led), GFP_KERNEL);
497 led->psmouse = psmouse;
498 INIT_WORK(&led->work, synaptics_led_work);
499 led->cdev.name = "psmouse::synaptics";
500 led->cdev.brightness_set = synaptics_led_cdev_brightness_set;
501 led->cdev.flags = LED_CORE_SUSPENDRESUME;
502 err = led_classdev_register(NULL, &led->cdev);
511 static void synaptics_free_led(struct psmouse *psmouse)
513 struct synaptics_data *priv = psmouse->private;
517 cancel_work_sync(&priv->led->work);
518 synaptics_set_led(psmouse, 0);
519 led_classdev_unregister(&priv->led->cdev);
523 #define synaptics_init_led(ps) 0
524 #define synaptics_free_led(ps) do {} while (0)
525 #define synaptics_sync_led(ps) do {} while (0)
528 /*****************************************************************************
529 * Functions to interpret the absolute mode packets
530 ****************************************************************************/
532 static void synaptics_mt_state_set(struct synaptics_mt_state *state, int count,
535 state->count = count;
540 static void synaptics_parse_agm(const unsigned char buf[],
541 struct synaptics_data *priv,
542 struct synaptics_hw_state *hw)
544 struct synaptics_hw_state *agm = &priv->agm;
547 agm_packet_type = (buf[5] & 0x30) >> 4;
548 switch (agm_packet_type) {
550 /* Gesture packet: (x, y, z) half resolution */
552 agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1;
553 agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1;
554 agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1;
558 /* AGM-CONTACT packet: (count, sgm, agm) */
559 synaptics_mt_state_set(&agm->mt_state, buf[1], buf[2], buf[4]);
566 /* Record that at least one AGM has been received since last SGM */
567 priv->agm_pending = true;
570 static int synaptics_parse_hw_state(const unsigned char buf[],
571 struct synaptics_data *priv,
572 struct synaptics_hw_state *hw)
574 memset(hw, 0, sizeof(struct synaptics_hw_state));
576 if (SYN_MODEL_NEWABS(priv->model_id)) {
577 hw->w = (((buf[0] & 0x30) >> 2) |
578 ((buf[0] & 0x04) >> 1) |
579 ((buf[3] & 0x04) >> 2));
581 hw->left = (buf[0] & 0x01) ? 1 : 0;
582 hw->right = (buf[0] & 0x02) ? 1 : 0;
584 if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
586 * Clickpad's button is transmitted as middle button,
587 * however, since it is primary button, we will report
590 hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
592 } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
593 hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
595 hw->scroll = (signed char)(buf[1]);
598 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
599 hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
600 hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
603 if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
604 SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) &&
606 synaptics_parse_agm(buf, priv, hw);
610 hw->x = (((buf[3] & 0x10) << 8) |
611 ((buf[1] & 0x0f) << 8) |
613 hw->y = (((buf[3] & 0x20) << 7) |
614 ((buf[1] & 0xf0) << 4) |
618 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
619 ((buf[0] ^ buf[3]) & 0x02)) {
620 switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
623 * if nExtBtn is greater than 8 it should be
624 * considered invalid and treated as 0
628 hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0;
629 hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0;
631 hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0;
632 hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0;
634 hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0;
635 hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0;
637 hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0;
638 hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0;
642 hw->x = (((buf[1] & 0x1f) << 8) | buf[2]);
643 hw->y = (((buf[4] & 0x1f) << 8) | buf[5]);
645 hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F));
646 hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1));
648 hw->left = (buf[0] & 0x01) ? 1 : 0;
649 hw->right = (buf[0] & 0x02) ? 1 : 0;
655 static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot,
656 bool active, int x, int y)
658 input_mt_slot(dev, slot);
659 input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
661 input_report_abs(dev, ABS_MT_POSITION_X, x);
662 input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y));
666 static void synaptics_report_semi_mt_data(struct input_dev *dev,
667 const struct synaptics_hw_state *a,
668 const struct synaptics_hw_state *b,
671 if (num_fingers >= 2) {
672 synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x),
674 synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x),
676 } else if (num_fingers == 1) {
677 synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y);
678 synaptics_report_semi_mt_slot(dev, 1, false, 0, 0);
680 synaptics_report_semi_mt_slot(dev, 0, false, 0, 0);
681 synaptics_report_semi_mt_slot(dev, 1, false, 0, 0);
685 static void synaptics_report_buttons(struct psmouse *psmouse,
686 const struct synaptics_hw_state *hw)
688 struct input_dev *dev = psmouse->dev;
689 struct synaptics_data *priv = psmouse->private;
692 input_report_key(dev, BTN_LEFT, hw->left);
693 input_report_key(dev, BTN_RIGHT, hw->right);
695 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
696 input_report_key(dev, BTN_MIDDLE, hw->middle);
698 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
699 input_report_key(dev, BTN_FORWARD, hw->up);
700 input_report_key(dev, BTN_BACK, hw->down);
703 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
704 input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i));
707 static void synaptics_report_slot(struct input_dev *dev, int slot,
708 const struct synaptics_hw_state *hw)
710 input_mt_slot(dev, slot);
711 input_mt_report_slot_state(dev, MT_TOOL_FINGER, (hw != NULL));
715 input_report_abs(dev, ABS_MT_POSITION_X, hw->x);
716 input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(hw->y));
717 input_report_abs(dev, ABS_MT_PRESSURE, hw->z);
720 static void synaptics_report_mt_data(struct psmouse *psmouse,
721 struct synaptics_mt_state *mt_state,
722 const struct synaptics_hw_state *sgm)
724 struct input_dev *dev = psmouse->dev;
725 struct synaptics_data *priv = psmouse->private;
726 struct synaptics_hw_state *agm = &priv->agm;
727 struct synaptics_mt_state *old = &priv->mt_state;
729 switch (mt_state->count) {
731 synaptics_report_slot(dev, 0, NULL);
732 synaptics_report_slot(dev, 1, NULL);
735 if (mt_state->sgm == -1) {
736 synaptics_report_slot(dev, 0, NULL);
737 synaptics_report_slot(dev, 1, NULL);
738 } else if (mt_state->sgm == 0) {
739 synaptics_report_slot(dev, 0, sgm);
740 synaptics_report_slot(dev, 1, NULL);
742 synaptics_report_slot(dev, 0, NULL);
743 synaptics_report_slot(dev, 1, sgm);
748 * If the finger slot contained in SGM is valid, and either
749 * hasn't changed, or is new, then report SGM in MTB slot 0.
750 * Otherwise, empty MTB slot 0.
752 if (mt_state->sgm != -1 &&
753 (mt_state->sgm == old->sgm || old->sgm == -1))
754 synaptics_report_slot(dev, 0, sgm);
756 synaptics_report_slot(dev, 0, NULL);
759 * If the finger slot contained in AGM is valid, and either
760 * hasn't changed, or is new, then report AGM in MTB slot 1.
761 * Otherwise, empty MTB slot 1.
763 if (mt_state->agm != -1 &&
764 (mt_state->agm == old->agm || old->agm == -1))
765 synaptics_report_slot(dev, 1, agm);
767 synaptics_report_slot(dev, 1, NULL);
771 /* Don't use active slot count to generate BTN_TOOL events. */
772 input_mt_report_pointer_emulation(dev, false);
774 /* Send the number of fingers reported by touchpad itself. */
775 input_mt_report_finger_count(dev, mt_state->count);
777 synaptics_report_buttons(psmouse, sgm);
782 /* Handle case where mt_state->count = 0 */
783 static void synaptics_image_sensor_0f(struct synaptics_data *priv,
784 struct synaptics_mt_state *mt_state)
786 synaptics_mt_state_set(mt_state, 0, -1, -1);
787 priv->mt_state_lost = false;
790 /* Handle case where mt_state->count = 1 */
791 static void synaptics_image_sensor_1f(struct synaptics_data *priv,
792 struct synaptics_mt_state *mt_state)
794 struct synaptics_hw_state *agm = &priv->agm;
795 struct synaptics_mt_state *old = &priv->mt_state;
798 * If the last AGM was (0,0,0), and there is only one finger left,
799 * then we absolutely know that SGM contains slot 0, and all other
800 * fingers have been removed.
802 if (priv->agm_pending && agm->z == 0) {
803 synaptics_mt_state_set(mt_state, 1, 0, -1);
804 priv->mt_state_lost = false;
808 switch (old->count) {
810 synaptics_mt_state_set(mt_state, 1, 0, -1);
814 * If mt_state_lost, then the previous transition was 3->1,
815 * and SGM now contains either slot 0 or 1, but we don't know
816 * which. So, we just assume that the SGM now contains slot 1.
818 * If pending AGM and either:
819 * (a) the previous SGM slot contains slot 0, or
820 * (b) there was no SGM slot
821 * then, the SGM now contains slot 1
823 * Case (a) happens with very rapid "drum roll" gestures, where
824 * slot 0 finger is lifted and a new slot 1 finger touches
825 * within one reporting interval.
827 * Case (b) happens if initially two or more fingers tap
828 * briefly, and all but one lift before the end of the first
829 * reporting interval.
831 * (In both these cases, slot 0 will becomes empty, so SGM
832 * contains slot 1 with the new finger)
834 * Else, if there was no previous SGM, it now contains slot 0.
836 * Otherwise, SGM still contains the same slot.
838 if (priv->mt_state_lost ||
839 (priv->agm_pending && old->sgm <= 0))
840 synaptics_mt_state_set(mt_state, 1, 1, -1);
841 else if (old->sgm == -1)
842 synaptics_mt_state_set(mt_state, 1, 0, -1);
846 * If mt_state_lost, we don't know which finger SGM contains.
848 * So, report 1 finger, but with both slots empty.
849 * We will use slot 1 on subsequent 1->1
851 if (priv->mt_state_lost) {
852 synaptics_mt_state_set(mt_state, 1, -1, -1);
856 * Since the last AGM was NOT (0,0,0), it was the finger in
857 * slot 0 that has been removed.
858 * So, SGM now contains previous AGM's slot, and AGM is now
861 synaptics_mt_state_set(mt_state, 1, old->agm, -1);
865 * Since last AGM was not (0,0,0), we don't know which finger
868 * So, report 1 finger, but with both slots empty.
869 * We will use slot 1 on subsequent 1->1
871 synaptics_mt_state_set(mt_state, 1, -1, -1);
872 priv->mt_state_lost = true;
876 /* mt_state was updated by AGM-CONTACT packet */
881 /* Handle case where mt_state->count = 2 */
882 static void synaptics_image_sensor_2f(struct synaptics_data *priv,
883 struct synaptics_mt_state *mt_state)
885 struct synaptics_mt_state *old = &priv->mt_state;
887 switch (old->count) {
889 synaptics_mt_state_set(mt_state, 2, 0, 1);
893 * If previous SGM contained slot 1 or higher, SGM now contains
894 * slot 0 (the newly touching finger) and AGM contains SGM's
897 * Otherwise, SGM still contains slot 0 and AGM now contains
901 synaptics_mt_state_set(mt_state, 2, 0, old->sgm);
903 synaptics_mt_state_set(mt_state, 2, 0, 1);
907 * If mt_state_lost, SGM now contains either finger 1 or 2, but
908 * we don't know which.
909 * So, we just assume that the SGM contains slot 0 and AGM 1.
911 if (priv->mt_state_lost)
912 synaptics_mt_state_set(mt_state, 2, 0, 1);
914 * Otherwise, use the same mt_state, since it either hasn't
915 * changed, or was updated by a recently received AGM-CONTACT
921 * 3->2 transitions have two unsolvable problems:
922 * 1) no indication is given which finger was removed
923 * 2) no way to tell if agm packet was for finger 3
924 * before 3->2, or finger 2 after 3->2.
926 * So, report 2 fingers, but empty all slots.
927 * We will guess slots [0,1] on subsequent 2->2.
929 synaptics_mt_state_set(mt_state, 2, -1, -1);
930 priv->mt_state_lost = true;
934 /* mt_state was updated by AGM-CONTACT packet */
939 /* Handle case where mt_state->count = 3 */
940 static void synaptics_image_sensor_3f(struct synaptics_data *priv,
941 struct synaptics_mt_state *mt_state)
943 struct synaptics_mt_state *old = &priv->mt_state;
945 switch (old->count) {
947 synaptics_mt_state_set(mt_state, 3, 0, 2);
951 * If previous SGM contained slot 2 or higher, SGM now contains
952 * slot 0 (one of the newly touching fingers) and AGM contains
953 * SGM's previous slot.
955 * Otherwise, SGM now contains slot 0 and AGM contains slot 2.
958 synaptics_mt_state_set(mt_state, 3, 0, old->sgm);
960 synaptics_mt_state_set(mt_state, 3, 0, 2);
964 * If the AGM previously contained slot 3 or higher, then the
965 * newly touching finger is in the lowest available slot.
967 * If SGM was previously 1 or higher, then the new SGM is
968 * now slot 0 (with a new finger), otherwise, the new finger
969 * is now in a hidden slot between 0 and AGM's slot.
971 * In all such cases, the SGM now contains slot 0, and the AGM
972 * continues to contain the same slot as before.
975 synaptics_mt_state_set(mt_state, 3, 0, old->agm);
980 * After some 3->1 and all 3->2 transitions, we lose track
981 * of which slot is reported by SGM and AGM.
983 * For 2->3 in this state, report 3 fingers, but empty all
984 * slots, and we will guess (0,2) on a subsequent 0->3.
986 * To userspace, the resulting transition will look like:
987 * 2:[0,1] -> 3:[-1,-1] -> 3:[0,2]
989 if (priv->mt_state_lost) {
990 synaptics_mt_state_set(mt_state, 3, -1, -1);
995 * If the (SGM,AGM) really previously contained slots (0, 1),
996 * then we cannot know what slot was just reported by the AGM,
997 * because the 2->3 transition can occur either before or after
998 * the AGM packet. Thus, this most recent AGM could contain
999 * either the same old slot 1 or the new slot 2.
1000 * Subsequent AGMs will be reporting slot 2.
1002 * To userspace, the resulting transition will look like:
1003 * 2:[0,1] -> 3:[0,-1] -> 3:[0,2]
1005 synaptics_mt_state_set(mt_state, 3, 0, -1);
1009 * If, for whatever reason, the previous agm was invalid,
1010 * Assume SGM now contains slot 0, AGM now contains slot 2.
1013 synaptics_mt_state_set(mt_state, 3, 0, 2);
1015 * mt_state either hasn't changed, or was updated by a recently
1016 * received AGM-CONTACT packet.
1022 /* mt_state was updated by AGM-CONTACT packet */
1027 /* Handle case where mt_state->count = 4, or = 5 */
1028 static void synaptics_image_sensor_45f(struct synaptics_data *priv,
1029 struct synaptics_mt_state *mt_state)
1031 /* mt_state was updated correctly by AGM-CONTACT packet */
1032 priv->mt_state_lost = false;
1035 static void synaptics_image_sensor_process(struct psmouse *psmouse,
1036 struct synaptics_hw_state *sgm)
1038 struct synaptics_data *priv = psmouse->private;
1039 struct synaptics_hw_state *agm = &priv->agm;
1040 struct synaptics_mt_state mt_state;
1042 /* Initialize using current mt_state (as updated by last agm) */
1043 mt_state = agm->mt_state;
1046 * Update mt_state using the new finger count and current mt_state.
1049 synaptics_image_sensor_0f(priv, &mt_state);
1050 else if (sgm->w >= 4)
1051 synaptics_image_sensor_1f(priv, &mt_state);
1052 else if (sgm->w == 0)
1053 synaptics_image_sensor_2f(priv, &mt_state);
1054 else if (sgm->w == 1 && mt_state.count <= 3)
1055 synaptics_image_sensor_3f(priv, &mt_state);
1057 synaptics_image_sensor_45f(priv, &mt_state);
1059 /* Send resulting input events to user space */
1060 synaptics_report_mt_data(psmouse, &mt_state, sgm);
1062 /* Store updated mt_state */
1063 priv->mt_state = agm->mt_state = mt_state;
1064 priv->agm_pending = false;
1068 * called for each full received packet from the touchpad
1070 static void synaptics_process_packet(struct psmouse *psmouse)
1072 struct input_dev *dev = psmouse->dev;
1073 struct synaptics_data *priv = psmouse->private;
1074 struct synaptics_hw_state hw;
1078 if (synaptics_parse_hw_state(psmouse->packet, priv, &hw))
1081 if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
1082 synaptics_image_sensor_process(psmouse, &hw);
1087 priv->scroll += hw.scroll;
1089 while (priv->scroll >= 4) {
1090 input_report_key(dev, BTN_BACK, !hw.down);
1092 input_report_key(dev, BTN_BACK, hw.down);
1096 while (priv->scroll <= -4) {
1097 input_report_key(dev, BTN_FORWARD, !hw.up);
1099 input_report_key(dev, BTN_FORWARD, hw.up);
1106 if (hw.z > 0 && hw.x > 1) {
1109 if (SYN_CAP_EXTENDED(priv->capabilities)) {
1112 if (SYN_CAP_MULTIFINGER(priv->capabilities))
1113 num_fingers = hw.w + 2;
1116 if (SYN_MODEL_PEN(priv->model_id))
1117 ; /* Nothing, treat a pen as a single finger */
1120 if (SYN_CAP_PALMDETECT(priv->capabilities))
1121 finger_width = hw.w;
1130 if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c))
1131 synaptics_report_semi_mt_data(dev, &hw, &priv->agm,
1135 * BTN_TOUCH has to be first as mousedev relies on it when doing
1136 * absolute -> relative conversion
1138 if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1);
1139 if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0);
1141 if (num_fingers > 0) {
1142 input_report_abs(dev, ABS_X, hw.x);
1143 input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y));
1145 input_report_abs(dev, ABS_PRESSURE, hw.z);
1147 if (SYN_CAP_PALMDETECT(priv->capabilities))
1148 input_report_abs(dev, ABS_TOOL_WIDTH, finger_width);
1150 input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1);
1151 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
1152 input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
1153 input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
1156 synaptics_report_buttons(psmouse, &hw);
1161 static int synaptics_validate_byte(struct psmouse *psmouse,
1162 int idx, unsigned char pkt_type)
1164 static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
1165 static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
1166 static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
1167 static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
1168 static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
1169 const char *packet = psmouse->packet;
1171 if (idx < 0 || idx > 4)
1177 case SYN_NEWABS_RELAXED:
1178 return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx];
1180 case SYN_NEWABS_STRICT:
1181 return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx];
1184 return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx];
1187 psmouse_err(psmouse, "unknown packet type %d\n", pkt_type);
1192 static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse)
1196 for (i = 0; i < 5; i++)
1197 if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) {
1198 psmouse_info(psmouse, "using relaxed packet validation\n");
1199 return SYN_NEWABS_RELAXED;
1202 return SYN_NEWABS_STRICT;
1205 static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
1207 struct synaptics_data *priv = psmouse->private;
1209 if (psmouse->pktcnt >= 6) { /* Full packet received */
1210 if (unlikely(priv->pkt_type == SYN_NEWABS))
1211 priv->pkt_type = synaptics_detect_pkt_type(psmouse);
1213 if (SYN_CAP_PASS_THROUGH(priv->capabilities) &&
1214 synaptics_is_pt_packet(psmouse->packet)) {
1216 synaptics_pass_pt_packet(priv->pt_port, psmouse->packet);
1218 synaptics_process_packet(psmouse);
1220 return PSMOUSE_FULL_PACKET;
1223 return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ?
1224 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
1227 /*****************************************************************************
1228 * Driver initialization/cleanup functions
1229 ****************************************************************************/
1230 static void set_abs_position_params(struct input_dev *dev,
1231 struct synaptics_data *priv, int x_code,
1234 int x_min = priv->x_min ?: XMIN_NOMINAL;
1235 int x_max = priv->x_max ?: XMAX_NOMINAL;
1236 int y_min = priv->y_min ?: YMIN_NOMINAL;
1237 int y_max = priv->y_max ?: YMAX_NOMINAL;
1238 int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ?
1239 SYN_REDUCED_FILTER_FUZZ : 0;
1241 input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0);
1242 input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0);
1243 input_abs_set_res(dev, x_code, priv->x_res);
1244 input_abs_set_res(dev, y_code, priv->y_res);
1247 static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
1251 __set_bit(INPUT_PROP_POINTER, dev->propbit);
1253 __set_bit(EV_ABS, dev->evbit);
1254 set_abs_position_params(dev, priv, ABS_X, ABS_Y);
1255 input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
1257 if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
1258 input_mt_init_slots(dev, 2);
1259 set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
1261 /* Image sensors can report per-contact pressure */
1262 input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
1264 /* Image sensors can signal 4 and 5 finger clicks */
1265 __set_bit(BTN_TOOL_QUADTAP, dev->keybit);
1266 __set_bit(BTN_TOOL_QUINTTAP, dev->keybit);
1267 } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) {
1268 /* Non-image sensors with AGM use semi-mt */
1269 __set_bit(INPUT_PROP_SEMI_MT, dev->propbit);
1270 input_mt_init_slots(dev, 2);
1271 set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
1275 if (SYN_CAP_PALMDETECT(priv->capabilities))
1276 input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0);
1278 __set_bit(EV_KEY, dev->evbit);
1279 __set_bit(BTN_TOUCH, dev->keybit);
1280 __set_bit(BTN_TOOL_FINGER, dev->keybit);
1281 __set_bit(BTN_LEFT, dev->keybit);
1282 __set_bit(BTN_RIGHT, dev->keybit);
1284 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
1285 __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
1286 __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
1289 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
1290 __set_bit(BTN_MIDDLE, dev->keybit);
1292 if (SYN_CAP_FOUR_BUTTON(priv->capabilities) ||
1293 SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
1294 __set_bit(BTN_FORWARD, dev->keybit);
1295 __set_bit(BTN_BACK, dev->keybit);
1298 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
1299 __set_bit(BTN_0 + i, dev->keybit);
1301 __clear_bit(EV_REL, dev->evbit);
1302 __clear_bit(REL_X, dev->relbit);
1303 __clear_bit(REL_Y, dev->relbit);
1305 if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
1306 __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
1307 /* Clickpads report only left button */
1308 __clear_bit(BTN_RIGHT, dev->keybit);
1309 __clear_bit(BTN_MIDDLE, dev->keybit);
1313 static void synaptics_disconnect(struct psmouse *psmouse)
1315 synaptics_free_led(psmouse);
1316 synaptics_reset(psmouse);
1317 kfree(psmouse->private);
1318 psmouse->private = NULL;
1321 static int synaptics_reconnect(struct psmouse *psmouse)
1323 struct synaptics_data *priv = psmouse->private;
1324 struct synaptics_data old_priv = *priv;
1329 psmouse_reset(psmouse);
1332 * On some boxes, right after resuming, the touchpad
1333 * needs some time to finish initializing (I assume
1334 * it needs time to calibrate) and start responding
1335 * to Synaptics-specific queries, so let's wait a
1340 error = synaptics_detect(psmouse, 0);
1341 } while (error && ++retry < 3);
1347 psmouse_dbg(psmouse, "reconnected after %d tries\n", retry);
1349 if (synaptics_query_hardware(psmouse)) {
1350 psmouse_err(psmouse, "Unable to query device.\n");
1354 if (synaptics_set_absolute_mode(psmouse)) {
1355 psmouse_err(psmouse, "Unable to initialize device.\n");
1359 if (synaptics_set_advanced_gesture_mode(psmouse)) {
1360 psmouse_err(psmouse,
1361 "Advanced gesture mode reconnect failed.\n");
1365 if (old_priv.identity != priv->identity ||
1366 old_priv.model_id != priv->model_id ||
1367 old_priv.capabilities != priv->capabilities ||
1368 old_priv.ext_cap != priv->ext_cap) {
1369 psmouse_err(psmouse,
1370 "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n",
1371 old_priv.identity, priv->identity,
1372 old_priv.model_id, priv->model_id,
1373 old_priv.capabilities, priv->capabilities,
1374 old_priv.ext_cap, priv->ext_cap);
1378 synaptics_sync_led(psmouse);
1383 static bool impaired_toshiba_kbc;
1385 static const struct dmi_system_id __initconst toshiba_dmi_table[] = {
1386 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
1388 /* Toshiba Satellite */
1390 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1391 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"),
1395 /* Toshiba Dynabook */
1397 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1398 DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"),
1402 /* Toshiba Portege M300 */
1404 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1405 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"),
1410 /* Toshiba Portege M300 */
1412 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1413 DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"),
1414 DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"),
1422 static bool broken_olpc_ec;
1424 static const struct dmi_system_id __initconst olpc_dmi_table[] = {
1425 #if defined(CONFIG_DMI) && defined(CONFIG_OLPC)
1427 /* OLPC XO-1 or XO-1.5 */
1429 DMI_MATCH(DMI_SYS_VENDOR, "OLPC"),
1430 DMI_MATCH(DMI_PRODUCT_NAME, "XO"),
1437 void __init synaptics_module_init(void)
1439 impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table);
1440 broken_olpc_ec = dmi_check_system(olpc_dmi_table);
1443 int synaptics_init(struct psmouse *psmouse)
1445 struct synaptics_data *priv;
1448 * The OLPC XO has issues with Synaptics' absolute mode; similarly to
1449 * the HGPK, it quickly degrades and the hardware becomes jumpy and
1450 * overly sensitive. Not only that, but the constant packet spew
1451 * (even at a lowered 40pps rate) overloads the EC such that key
1452 * presses on the keyboard are missed. Given all of that, don't
1453 * even attempt to use Synaptics mode. Relative mode seems to work
1456 if (broken_olpc_ec) {
1457 psmouse_info(psmouse,
1458 "OLPC XO detected, not enabling Synaptics protocol.\n");
1462 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL);
1466 psmouse_reset(psmouse);
1468 if (synaptics_query_hardware(psmouse)) {
1469 psmouse_err(psmouse, "Unable to query device.\n");
1473 if (synaptics_set_absolute_mode(psmouse)) {
1474 psmouse_err(psmouse, "Unable to initialize device.\n");
1478 if (synaptics_set_advanced_gesture_mode(psmouse)) {
1479 psmouse_err(psmouse, "Advanced gesture mode init failed.\n");
1483 priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
1485 psmouse_info(psmouse,
1486 "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n",
1487 SYN_ID_MODEL(priv->identity),
1488 SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
1490 priv->capabilities, priv->ext_cap, priv->ext_cap_0c);
1492 if (synaptics_init_led(psmouse) < 0)
1495 set_input_params(psmouse->dev, priv);
1498 * Encode touchpad model so that it can be used to set
1499 * input device->id.version and be visible to userspace.
1500 * Because version is __u16 we have to drop something.
1501 * Hardware info bits seem to be good candidates as they
1502 * are documented to be for Synaptics corp. internal use.
1504 psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) |
1505 (priv->model_id & 0x000000ff);
1507 psmouse->protocol_handler = synaptics_process_byte;
1508 psmouse->set_rate = synaptics_set_rate;
1509 psmouse->disconnect = synaptics_disconnect;
1510 psmouse->reconnect = synaptics_reconnect;
1511 psmouse->cleanup = synaptics_reset;
1512 psmouse->pktsize = 6;
1513 /* Synaptics can usually stay in sync without extra help */
1514 psmouse->resync_time = 0;
1516 if (SYN_CAP_PASS_THROUGH(priv->capabilities))
1517 synaptics_pt_create(psmouse);
1520 * Toshiba's KBC seems to have trouble handling data from
1521 * Synaptics at full rate. Switch to a lower rate (roughly
1522 * the same rate as a standard PS/2 mouse).
1524 if (psmouse->rate >= 80 && impaired_toshiba_kbc) {
1525 psmouse_info(psmouse,
1526 "Toshiba %s detected, limiting rate to 40pps.\n",
1527 dmi_get_system_info(DMI_PRODUCT_NAME));
1538 bool synaptics_supported(void)
1543 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */
1545 void __init synaptics_module_init(void)
1549 int synaptics_init(struct psmouse *psmouse)
1554 bool synaptics_supported(void)
1559 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */