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[ARM] pxa: update defconfig for Verdex Pro
[linux-2.6/verdex.git] / drivers / input / mouse / synaptics.c
blobb66ff1ac7dea651ebbfc263dc83774168f5f9ae5
1 /*
2 * Synaptics TouchPad PS/2 mouse driver
3 *
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.
7 *
8 * 2003 Peter Osterlund <petero2@telia.com>
9 * Ported to 2.5 input device infrastructure.
10 *
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)
14 *
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)
18 *
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.
22 *
23 * Trademarks are the property of their respective owners.
24 */
25
26 #include <linux/module.h>
27 #include <linux/input.h>
28 #include <linux/serio.h>
29 #include <linux/libps2.h>
30 #include "psmouse.h"
31 #include "synaptics.h"
32
33 /*
34 * The x/y limits are taken from the Synaptics TouchPad interfacing Guide,
35 * section 2.3.2, which says that they should be valid regardless of the
36 * actual size of the sensor.
37 */
38 #define XMIN_NOMINAL 1472
39 #define XMAX_NOMINAL 5472
40 #define YMIN_NOMINAL 1408
41 #define YMAX_NOMINAL 4448
42
43
44 /*****************************************************************************
45 * Stuff we need even when we do not want native Synaptics support
46 ****************************************************************************/
47
48 /*
49 * Set the synaptics touchpad mode byte by special commands
50 */
51 static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode)
52 {
53 unsigned char param[1];
54
55 if (psmouse_sliced_command(psmouse, mode))
56 return -1;
57 param[0] = SYN_PS_SET_MODE2;
58 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE))
59 return -1;
60 return 0;
61 }
62
63 int synaptics_detect(struct psmouse *psmouse, bool set_properties)
64 {
65 struct ps2dev *ps2dev = &psmouse->ps2dev;
66 unsigned char param[4];
67
68 param[0] = 0;
69
70 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
71 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
72 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
73 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
74 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
75
76 if (param[1] != 0x47)
77 return -ENODEV;
78
79 if (set_properties) {
80 psmouse->vendor = "Synaptics";
81 psmouse->name = "TouchPad";
82 }
83
84 return 0;
85 }
86
87 void synaptics_reset(struct psmouse *psmouse)
88 {
89 /* reset touchpad back to relative mode, gestures enabled */
90 synaptics_mode_cmd(psmouse, 0);
91 }
92
93 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS
94
95 /*****************************************************************************
96 * Synaptics communications functions
97 ****************************************************************************/
98
99 /*
100 * Send a command to the synpatics touchpad by special commands
101 */
102 static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param)
103 {
104 if (psmouse_sliced_command(psmouse, c))
105 return -1;
106 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO))
107 return -1;
108 return 0;
109 }
110
111 /*
112 * Read the model-id bytes from the touchpad
113 * see also SYN_MODEL_* macros
114 */
115 static int synaptics_model_id(struct psmouse *psmouse)
116 {
117 struct synaptics_data *priv = psmouse->private;
118 unsigned char mi[3];
119
120 if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi))
121 return -1;
122 priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2];
123 return 0;
124 }
125
126 /*
127 * Read the capability-bits from the touchpad
128 * see also the SYN_CAP_* macros
129 */
130 static int synaptics_capability(struct psmouse *psmouse)
131 {
132 struct synaptics_data *priv = psmouse->private;
133 unsigned char cap[3];
134
135 if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
136 return -1;
137 priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
138 priv->ext_cap = 0;
139 if (!SYN_CAP_VALID(priv->capabilities))
140 return -1;
141
142 /*
143 * Unless capExtended is set the rest of the flags should be ignored
144 */
145 if (!SYN_CAP_EXTENDED(priv->capabilities))
146 priv->capabilities = 0;
147
148 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
149 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
150 printk(KERN_ERR "Synaptics claims to have extended capabilities,"
151 " but I'm not able to read them.");
152 } else {
153 priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
154
155 /*
156 * if nExtBtn is greater than 8 it should be considered
157 * invalid and treated as 0
158 */
159 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8)
160 priv->ext_cap &= 0xff0fff;
161 }
162 }
163 return 0;
164 }
165
166 /*
167 * Identify Touchpad
168 * See also the SYN_ID_* macros
169 */
170 static int synaptics_identify(struct psmouse *psmouse)
171 {
172 struct synaptics_data *priv = psmouse->private;
173 unsigned char id[3];
174
175 if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id))
176 return -1;
177 priv->identity = (id[0]<<16) | (id[1]<<8) | id[2];
178 if (SYN_ID_IS_SYNAPTICS(priv->identity))
179 return 0;
180 return -1;
181 }
182
183 /*
184 * Read touchpad resolution
185 * Resolution is left zero if touchpad does not support the query
186 */
187 static int synaptics_resolution(struct psmouse *psmouse)
188 {
189 struct synaptics_data *priv = psmouse->private;
190 unsigned char res[3];
191
192 if (SYN_ID_MAJOR(priv->identity) < 4)
193 return 0;
194
195 if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, res))
196 return 0;
197
198 if ((res[0] != 0) && (res[1] & 0x80) && (res[2] != 0)) {
199 priv->x_res = res[0]; /* x resolution in units/mm */
200 priv->y_res = res[2]; /* y resolution in units/mm */
201 }
202
203 return 0;
204 }
205
206 static int synaptics_query_hardware(struct psmouse *psmouse)
207 {
208 if (synaptics_identify(psmouse))
209 return -1;
210 if (synaptics_model_id(psmouse))
211 return -1;
212 if (synaptics_capability(psmouse))
213 return -1;
214 if (synaptics_resolution(psmouse))
215 return -1;
216
217 return 0;
218 }
219
220 static int synaptics_set_absolute_mode(struct psmouse *psmouse)
221 {
222 struct synaptics_data *priv = psmouse->private;
223
224 priv->mode = SYN_BIT_ABSOLUTE_MODE;
225 if (SYN_ID_MAJOR(priv->identity) >= 4)
226 priv->mode |= SYN_BIT_DISABLE_GESTURE;
227 if (SYN_CAP_EXTENDED(priv->capabilities))
228 priv->mode |= SYN_BIT_W_MODE;
229
230 if (synaptics_mode_cmd(psmouse, priv->mode))
231 return -1;
232
233 return 0;
234 }
235
236 static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate)
237 {
238 struct synaptics_data *priv = psmouse->private;
239
240 if (rate >= 80) {
241 priv->mode |= SYN_BIT_HIGH_RATE;
242 psmouse->rate = 80;
243 } else {
244 priv->mode &= ~SYN_BIT_HIGH_RATE;
245 psmouse->rate = 40;
246 }
247
248 synaptics_mode_cmd(psmouse, priv->mode);
249 }
250
251 /*****************************************************************************
252 * Synaptics pass-through PS/2 port support
253 ****************************************************************************/
254 static int synaptics_pt_write(struct serio *serio, unsigned char c)
255 {
256 struct psmouse *parent = serio_get_drvdata(serio->parent);
257 char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */
258
259 if (psmouse_sliced_command(parent, c))
260 return -1;
261 if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE))
262 return -1;
263 return 0;
264 }
265
266 static inline int synaptics_is_pt_packet(unsigned char *buf)
267 {
268 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
269 }
270
271 static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet)
272 {
273 struct psmouse *child = serio_get_drvdata(ptport);
274
275 if (child && child->state == PSMOUSE_ACTIVATED) {
276 serio_interrupt(ptport, packet[1], 0);
277 serio_interrupt(ptport, packet[4], 0);
278 serio_interrupt(ptport, packet[5], 0);
279 if (child->pktsize == 4)
280 serio_interrupt(ptport, packet[2], 0);
281 } else
282 serio_interrupt(ptport, packet[1], 0);
283 }
284
285 static void synaptics_pt_activate(struct psmouse *psmouse)
286 {
287 struct serio *ptport = psmouse->ps2dev.serio->child;
288 struct psmouse *child = serio_get_drvdata(ptport);
289 struct synaptics_data *priv = psmouse->private;
290
291 /* adjust the touchpad to child's choice of protocol */
292 if (child) {
293 if (child->pktsize == 4)
294 priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT;
295 else
296 priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT;
297
298 if (synaptics_mode_cmd(psmouse, priv->mode))
299 printk(KERN_INFO "synaptics: failed to switch guest protocol\n");
300 }
301 }
302
303 static void synaptics_pt_create(struct psmouse *psmouse)
304 {
305 struct serio *serio;
306
307 serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
308 if (!serio) {
309 printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n");
310 return;
311 }
312
313 serio->id.type = SERIO_PS_PSTHRU;
314 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
315 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
316 serio->write = synaptics_pt_write;
317 serio->parent = psmouse->ps2dev.serio;
318
319 psmouse->pt_activate = synaptics_pt_activate;
320
321 printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys);
322 serio_register_port(serio);
323 }
324
325 /*****************************************************************************
326 * Functions to interpret the absolute mode packets
327 ****************************************************************************/
328
329 static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw)
330 {
331 memset(hw, 0, sizeof(struct synaptics_hw_state));
332
333 if (SYN_MODEL_NEWABS(priv->model_id)) {
334 hw->x = (((buf[3] & 0x10) << 8) |
335 ((buf[1] & 0x0f) << 8) |
336 buf[4]);
337 hw->y = (((buf[3] & 0x20) << 7) |
338 ((buf[1] & 0xf0) << 4) |
339 buf[5]);
340
341 hw->z = buf[2];
342 hw->w = (((buf[0] & 0x30) >> 2) |
343 ((buf[0] & 0x04) >> 1) |
344 ((buf[3] & 0x04) >> 2));
345
346 hw->left = (buf[0] & 0x01) ? 1 : 0;
347 hw->right = (buf[0] & 0x02) ? 1 : 0;
348
349 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
350 hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
351 if (hw->w == 2)
352 hw->scroll = (signed char)(buf[1]);
353 }
354
355 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
356 hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
357 hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
358 }
359
360 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
361 ((buf[0] ^ buf[3]) & 0x02)) {
362 switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
363 default:
364 /*
365 * if nExtBtn is greater than 8 it should be
366 * considered invalid and treated as 0
367 */
368 break;
369 case 8:
370 hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0;
371 hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0;
372 case 6:
373 hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0;
374 hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0;
375 case 4:
376 hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0;
377 hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0;
378 case 2:
379 hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0;
380 hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0;
381 }
382 }
383 } else {
384 hw->x = (((buf[1] & 0x1f) << 8) | buf[2]);
385 hw->y = (((buf[4] & 0x1f) << 8) | buf[5]);
386
387 hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F));
388 hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1));
389
390 hw->left = (buf[0] & 0x01) ? 1 : 0;
391 hw->right = (buf[0] & 0x02) ? 1 : 0;
392 }
393 }
394
395 /*
396 * called for each full received packet from the touchpad
397 */
398 static void synaptics_process_packet(struct psmouse *psmouse)
399 {
400 struct input_dev *dev = psmouse->dev;
401 struct synaptics_data *priv = psmouse->private;
402 struct synaptics_hw_state hw;
403 int num_fingers;
404 int finger_width;
405 int i;
406
407 synaptics_parse_hw_state(psmouse->packet, priv, &hw);
408
409 if (hw.scroll) {
410 priv->scroll += hw.scroll;
411
412 while (priv->scroll >= 4) {
413 input_report_key(dev, BTN_BACK, !hw.down);
414 input_sync(dev);
415 input_report_key(dev, BTN_BACK, hw.down);
416 input_sync(dev);
417 priv->scroll -= 4;
418 }
419 while (priv->scroll <= -4) {
420 input_report_key(dev, BTN_FORWARD, !hw.up);
421 input_sync(dev);
422 input_report_key(dev, BTN_FORWARD, hw.up);
423 input_sync(dev);
424 priv->scroll += 4;
425 }
426 return;
427 }
428
429 if (hw.z > 0) {
430 num_fingers = 1;
431 finger_width = 5;
432 if (SYN_CAP_EXTENDED(priv->capabilities)) {
433 switch (hw.w) {
434 case 0 ... 1:
435 if (SYN_CAP_MULTIFINGER(priv->capabilities))
436 num_fingers = hw.w + 2;
437 break;
438 case 2:
439 if (SYN_MODEL_PEN(priv->model_id))
440 ; /* Nothing, treat a pen as a single finger */
441 break;
442 case 4 ... 15:
443 if (SYN_CAP_PALMDETECT(priv->capabilities))
444 finger_width = hw.w;
445 break;
446 }
447 }
448 } else {
449 num_fingers = 0;
450 finger_width = 0;
451 }
452
453 /* Post events
454 * BTN_TOUCH has to be first as mousedev relies on it when doing
455 * absolute -> relative conversion
456 */
457 if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1);
458 if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0);
459
460 if (hw.z > 0) {
461 input_report_abs(dev, ABS_X, hw.x);
462 input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y);
463 }
464 input_report_abs(dev, ABS_PRESSURE, hw.z);
465
466 input_report_abs(dev, ABS_TOOL_WIDTH, finger_width);
467 input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1);
468 input_report_key(dev, BTN_LEFT, hw.left);
469 input_report_key(dev, BTN_RIGHT, hw.right);
470
471 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
472 input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
473 input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
474 }
475
476 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
477 input_report_key(dev, BTN_MIDDLE, hw.middle);
478
479 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
480 input_report_key(dev, BTN_FORWARD, hw.up);
481 input_report_key(dev, BTN_BACK, hw.down);
482 }
483
484 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
485 input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i));
486
487 input_sync(dev);
488 }
489
490 static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type)
491 {
492 static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
493 static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
494 static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
495 static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
496 static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
497
498 if (idx < 0 || idx > 4)
499 return 0;
500
501 switch (pkt_type) {
502 case SYN_NEWABS:
503 case SYN_NEWABS_RELAXED:
504 return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx];
505
506 case SYN_NEWABS_STRICT:
507 return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx];
508
509 case SYN_OLDABS:
510 return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx];
511
512 default:
513 printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type);
514 return 0;
515 }
516 }
517
518 static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse)
519 {
520 int i;
521
522 for (i = 0; i < 5; i++)
523 if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) {
524 printk(KERN_INFO "synaptics: using relaxed packet validation\n");
525 return SYN_NEWABS_RELAXED;
526 }
527
528 return SYN_NEWABS_STRICT;
529 }
530
531 static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
532 {
533 struct synaptics_data *priv = psmouse->private;
534
535 if (psmouse->pktcnt >= 6) { /* Full packet received */
536 if (unlikely(priv->pkt_type == SYN_NEWABS))
537 priv->pkt_type = synaptics_detect_pkt_type(psmouse);
538
539 if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) {
540 if (psmouse->ps2dev.serio->child)
541 synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet);
542 } else
543 synaptics_process_packet(psmouse);
544
545 return PSMOUSE_FULL_PACKET;
546 }
547
548 return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ?
549 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
550 }
551
552 /*****************************************************************************
553 * Driver initialization/cleanup functions
554 ****************************************************************************/
555 static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
556 {
557 int i;
558
559 __set_bit(EV_ABS, dev->evbit);
560 input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0);
561 input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0);
562 input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
563 __set_bit(ABS_TOOL_WIDTH, dev->absbit);
564
565 __set_bit(EV_KEY, dev->evbit);
566 __set_bit(BTN_TOUCH, dev->keybit);
567 __set_bit(BTN_TOOL_FINGER, dev->keybit);
568 __set_bit(BTN_LEFT, dev->keybit);
569 __set_bit(BTN_RIGHT, dev->keybit);
570
571 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
572 __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
573 __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
574 }
575
576 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
577 __set_bit(BTN_MIDDLE, dev->keybit);
578
579 if (SYN_CAP_FOUR_BUTTON(priv->capabilities) ||
580 SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
581 __set_bit(BTN_FORWARD, dev->keybit);
582 __set_bit(BTN_BACK, dev->keybit);
583 }
584
585 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
586 __set_bit(BTN_0 + i, dev->keybit);
587
588 __clear_bit(EV_REL, dev->evbit);
589 __clear_bit(REL_X, dev->relbit);
590 __clear_bit(REL_Y, dev->relbit);
591
592 dev->absres[ABS_X] = priv->x_res;
593 dev->absres[ABS_Y] = priv->y_res;
594 }
595
596 static void synaptics_disconnect(struct psmouse *psmouse)
597 {
598 synaptics_reset(psmouse);
599 kfree(psmouse->private);
600 psmouse->private = NULL;
601 }
602
603 static int synaptics_reconnect(struct psmouse *psmouse)
604 {
605 struct synaptics_data *priv = psmouse->private;
606 struct synaptics_data old_priv = *priv;
607
608 psmouse_reset(psmouse);
609
610 if (synaptics_detect(psmouse, 0))
611 return -1;
612
613 if (synaptics_query_hardware(psmouse)) {
614 printk(KERN_ERR "Unable to query Synaptics hardware.\n");
615 return -1;
616 }
617
618 if (old_priv.identity != priv->identity ||
619 old_priv.model_id != priv->model_id ||
620 old_priv.capabilities != priv->capabilities ||
621 old_priv.ext_cap != priv->ext_cap)
622 return -1;
623
624 if (synaptics_set_absolute_mode(psmouse)) {
625 printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
626 return -1;
627 }
628
629 return 0;
630 }
631
632 #if defined(__i386__)
633 #include <linux/dmi.h>
634 static const struct dmi_system_id toshiba_dmi_table[] = {
635 {
636 .ident = "Toshiba Satellite",
637 .matches = {
638 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
639 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"),
640 },
641 },
642 {
643 .ident = "Toshiba Dynabook",
644 .matches = {
645 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
646 DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"),
647 },
648 },
649 {
650 .ident = "Toshiba Portege M300",
651 .matches = {
652 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
653 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"),
654 },
655 },
656 { }
657 };
658 #endif
659
660 int synaptics_init(struct psmouse *psmouse)
661 {
662 struct synaptics_data *priv;
663
664 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL);
665 if (!priv)
666 return -1;
667
668 psmouse_reset(psmouse);
669
670 if (synaptics_query_hardware(psmouse)) {
671 printk(KERN_ERR "Unable to query Synaptics hardware.\n");
672 goto init_fail;
673 }
674
675 if (synaptics_set_absolute_mode(psmouse)) {
676 printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
677 goto init_fail;
678 }
679
680 priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
681
682 printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx\n",
683 SYN_ID_MODEL(priv->identity),
684 SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
685 priv->model_id, priv->capabilities, priv->ext_cap);
686
687 set_input_params(psmouse->dev, priv);
688
689 /*
690 * Encode touchpad model so that it can be used to set
691 * input device->id.version and be visible to userspace.
692 * Because version is __u16 we have to drop something.
693 * Hardware info bits seem to be good candidates as they
694 * are documented to be for Synaptics corp. internal use.
695 */
696 psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) |
697 (priv->model_id & 0x000000ff);
698
699 psmouse->protocol_handler = synaptics_process_byte;
700 psmouse->set_rate = synaptics_set_rate;
701 psmouse->disconnect = synaptics_disconnect;
702 psmouse->reconnect = synaptics_reconnect;
703 psmouse->cleanup = synaptics_reset;
704 psmouse->pktsize = 6;
705 /* Synaptics can usually stay in sync without extra help */
706 psmouse->resync_time = 0;
707
708 if (SYN_CAP_PASS_THROUGH(priv->capabilities))
709 synaptics_pt_create(psmouse);
710
711 #if defined(__i386__)
712 /*
713 * Toshiba's KBC seems to have trouble handling data from
714 * Synaptics as full rate, switch to lower rate which is roughly
715 * thye same as rate of standard PS/2 mouse.
716 */
717 if (psmouse->rate >= 80 && dmi_check_system(toshiba_dmi_table)) {
718 printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n",
719 dmi_get_system_info(DMI_PRODUCT_NAME));
720 psmouse->rate = 40;
721 }
722 #endif
723
724 return 0;
725
726 init_fail:
727 kfree(priv);
728 return -1;
729 }
730
731 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */
732
733 int synaptics_init(struct psmouse *psmouse)
734 {
735 return -ENOSYS;
736 }
737
738 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */
739
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