?  search:
summary | log | graphiclog1 | graphiclog2 | commit | commitdiff | tree | refs | edit | fork
blame | history | raw | HEAD
init from v2.6.32.60
[mach-moxart.git] / drivers / input / mouse / synaptics.c
blob391f91adf8e3789acb63fece1d6b9f66d6d03365
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 = priv->ext_cap_0c = 0;
139
140 if (!SYN_CAP_VALID(priv->capabilities))
141 return -1;
142
143 /*
144 * Unless capExtended is set the rest of the flags should be ignored
145 */
146 if (!SYN_CAP_EXTENDED(priv->capabilities))
147 priv->capabilities = 0;
148
149 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
150 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
151 printk(KERN_ERR "Synaptics claims to have extended capabilities,"
152 " but I'm not able to read them.\n");
153 } else {
154 priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
155
156 /*
157 * if nExtBtn is greater than 8 it should be considered
158 * invalid and treated as 0
159 */
160 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8)
161 priv->ext_cap &= 0xff0fff;
162 }
163 }
164
165 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) {
166 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) {
167 printk(KERN_ERR "Synaptics claims to have extended capability 0x0c,"
168 " but I'm not able to read it.\n");
169 } else {
170 priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2];
171 }
172 }
173
174 return 0;
175 }
176
177 /*
178 * Identify Touchpad
179 * See also the SYN_ID_* macros
180 */
181 static int synaptics_identify(struct psmouse *psmouse)
182 {
183 struct synaptics_data *priv = psmouse->private;
184 unsigned char id[3];
185
186 if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id))
187 return -1;
188 priv->identity = (id[0]<<16) | (id[1]<<8) | id[2];
189 if (SYN_ID_IS_SYNAPTICS(priv->identity))
190 return 0;
191 return -1;
192 }
193
194 /*
195 * Read touchpad resolution
196 * Resolution is left zero if touchpad does not support the query
197 */
198 static int synaptics_resolution(struct psmouse *psmouse)
199 {
200 struct synaptics_data *priv = psmouse->private;
201 unsigned char res[3];
202
203 if (SYN_ID_MAJOR(priv->identity) < 4)
204 return 0;
205
206 if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, res))
207 return 0;
208
209 if ((res[0] != 0) && (res[1] & 0x80) && (res[2] != 0)) {
210 priv->x_res = res[0]; /* x resolution in units/mm */
211 priv->y_res = res[2]; /* y resolution in units/mm */
212 }
213
214 return 0;
215 }
216
217 static int synaptics_query_hardware(struct psmouse *psmouse)
218 {
219 if (synaptics_identify(psmouse))
220 return -1;
221 if (synaptics_model_id(psmouse))
222 return -1;
223 if (synaptics_capability(psmouse))
224 return -1;
225 if (synaptics_resolution(psmouse))
226 return -1;
227
228 return 0;
229 }
230
231 static int synaptics_set_absolute_mode(struct psmouse *psmouse)
232 {
233 struct synaptics_data *priv = psmouse->private;
234
235 priv->mode = SYN_BIT_ABSOLUTE_MODE;
236 if (SYN_ID_MAJOR(priv->identity) >= 4)
237 priv->mode |= SYN_BIT_DISABLE_GESTURE;
238 if (SYN_CAP_EXTENDED(priv->capabilities))
239 priv->mode |= SYN_BIT_W_MODE;
240
241 if (synaptics_mode_cmd(psmouse, priv->mode))
242 return -1;
243
244 return 0;
245 }
246
247 static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate)
248 {
249 struct synaptics_data *priv = psmouse->private;
250
251 if (rate >= 80) {
252 priv->mode |= SYN_BIT_HIGH_RATE;
253 psmouse->rate = 80;
254 } else {
255 priv->mode &= ~SYN_BIT_HIGH_RATE;
256 psmouse->rate = 40;
257 }
258
259 synaptics_mode_cmd(psmouse, priv->mode);
260 }
261
262 /*****************************************************************************
263 * Synaptics pass-through PS/2 port support
264 ****************************************************************************/
265 static int synaptics_pt_write(struct serio *serio, unsigned char c)
266 {
267 struct psmouse *parent = serio_get_drvdata(serio->parent);
268 char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */
269
270 if (psmouse_sliced_command(parent, c))
271 return -1;
272 if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE))
273 return -1;
274 return 0;
275 }
276
277 static inline int synaptics_is_pt_packet(unsigned char *buf)
278 {
279 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
280 }
281
282 static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet)
283 {
284 struct psmouse *child = serio_get_drvdata(ptport);
285
286 if (child && child->state == PSMOUSE_ACTIVATED) {
287 serio_interrupt(ptport, packet[1], 0);
288 serio_interrupt(ptport, packet[4], 0);
289 serio_interrupt(ptport, packet[5], 0);
290 if (child->pktsize == 4)
291 serio_interrupt(ptport, packet[2], 0);
292 } else
293 serio_interrupt(ptport, packet[1], 0);
294 }
295
296 static void synaptics_pt_activate(struct psmouse *psmouse)
297 {
298 struct serio *ptport = psmouse->ps2dev.serio->child;
299 struct psmouse *child = serio_get_drvdata(ptport);
300 struct synaptics_data *priv = psmouse->private;
301
302 /* adjust the touchpad to child's choice of protocol */
303 if (child) {
304 if (child->pktsize == 4)
305 priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT;
306 else
307 priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT;
308
309 if (synaptics_mode_cmd(psmouse, priv->mode))
310 printk(KERN_INFO "synaptics: failed to switch guest protocol\n");
311 }
312 }
313
314 static void synaptics_pt_create(struct psmouse *psmouse)
315 {
316 struct serio *serio;
317
318 serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
319 if (!serio) {
320 printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n");
321 return;
322 }
323
324 serio->id.type = SERIO_PS_PSTHRU;
325 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
326 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
327 serio->write = synaptics_pt_write;
328 serio->parent = psmouse->ps2dev.serio;
329
330 psmouse->pt_activate = synaptics_pt_activate;
331
332 printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys);
333 serio_register_port(serio);
334 }
335
336 /*****************************************************************************
337 * Functions to interpret the absolute mode packets
338 ****************************************************************************/
339
340 static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw)
341 {
342 memset(hw, 0, sizeof(struct synaptics_hw_state));
343
344 if (SYN_MODEL_NEWABS(priv->model_id)) {
345 hw->x = (((buf[3] & 0x10) << 8) |
346 ((buf[1] & 0x0f) << 8) |
347 buf[4]);
348 hw->y = (((buf[3] & 0x20) << 7) |
349 ((buf[1] & 0xf0) << 4) |
350 buf[5]);
351
352 hw->z = buf[2];
353 hw->w = (((buf[0] & 0x30) >> 2) |
354 ((buf[0] & 0x04) >> 1) |
355 ((buf[3] & 0x04) >> 2));
356
357 hw->left = (buf[0] & 0x01) ? 1 : 0;
358 hw->right = (buf[0] & 0x02) ? 1 : 0;
359
360 if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
361 /*
362 * Clickpad's button is transmitted as middle button,
363 * however, since it is primary button, we will report
364 * it as BTN_LEFT.
365 */
366 hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
367
368 } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
369 hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
370 if (hw->w == 2)
371 hw->scroll = (signed char)(buf[1]);
372 }
373
374 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
375 hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
376 hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
377 }
378
379 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
380 ((buf[0] ^ buf[3]) & 0x02)) {
381 switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
382 default:
383 /*
384 * if nExtBtn is greater than 8 it should be
385 * considered invalid and treated as 0
386 */
387 break;
388 case 8:
389 hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0;
390 hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0;
391 case 6:
392 hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0;
393 hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0;
394 case 4:
395 hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0;
396 hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0;
397 case 2:
398 hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0;
399 hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0;
400 }
401 }
402 } else {
403 hw->x = (((buf[1] & 0x1f) << 8) | buf[2]);
404 hw->y = (((buf[4] & 0x1f) << 8) | buf[5]);
405
406 hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F));
407 hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1));
408
409 hw->left = (buf[0] & 0x01) ? 1 : 0;
410 hw->right = (buf[0] & 0x02) ? 1 : 0;
411 }
412 }
413
414 /*
415 * called for each full received packet from the touchpad
416 */
417 static void synaptics_process_packet(struct psmouse *psmouse)
418 {
419 struct input_dev *dev = psmouse->dev;
420 struct synaptics_data *priv = psmouse->private;
421 struct synaptics_hw_state hw;
422 int num_fingers;
423 int finger_width;
424 int i;
425
426 synaptics_parse_hw_state(psmouse->packet, priv, &hw);
427
428 if (hw.scroll) {
429 priv->scroll += hw.scroll;
430
431 while (priv->scroll >= 4) {
432 input_report_key(dev, BTN_BACK, !hw.down);
433 input_sync(dev);
434 input_report_key(dev, BTN_BACK, hw.down);
435 input_sync(dev);
436 priv->scroll -= 4;
437 }
438 while (priv->scroll <= -4) {
439 input_report_key(dev, BTN_FORWARD, !hw.up);
440 input_sync(dev);
441 input_report_key(dev, BTN_FORWARD, hw.up);
442 input_sync(dev);
443 priv->scroll += 4;
444 }
445 return;
446 }
447
448 if (hw.z > 0) {
449 num_fingers = 1;
450 finger_width = 5;
451 if (SYN_CAP_EXTENDED(priv->capabilities)) {
452 switch (hw.w) {
453 case 0 ... 1:
454 if (SYN_CAP_MULTIFINGER(priv->capabilities))
455 num_fingers = hw.w + 2;
456 break;
457 case 2:
458 if (SYN_MODEL_PEN(priv->model_id))
459 ; /* Nothing, treat a pen as a single finger */
460 break;
461 case 4 ... 15:
462 if (SYN_CAP_PALMDETECT(priv->capabilities))
463 finger_width = hw.w;
464 break;
465 }
466 }
467 } else {
468 num_fingers = 0;
469 finger_width = 0;
470 }
471
472 /* Post events
473 * BTN_TOUCH has to be first as mousedev relies on it when doing
474 * absolute -> relative conversion
475 */
476 if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1);
477 if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0);
478
479 if (hw.z > 0) {
480 input_report_abs(dev, ABS_X, hw.x);
481 input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y);
482 }
483 input_report_abs(dev, ABS_PRESSURE, hw.z);
484
485 input_report_abs(dev, ABS_TOOL_WIDTH, finger_width);
486 input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1);
487 input_report_key(dev, BTN_LEFT, hw.left);
488 input_report_key(dev, BTN_RIGHT, hw.right);
489
490 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
491 input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
492 input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
493 }
494
495 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
496 input_report_key(dev, BTN_MIDDLE, hw.middle);
497
498 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
499 input_report_key(dev, BTN_FORWARD, hw.up);
500 input_report_key(dev, BTN_BACK, hw.down);
501 }
502
503 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
504 input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i));
505
506 input_sync(dev);
507 }
508
509 static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type)
510 {
511 static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
512 static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
513 static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
514 static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
515 static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
516
517 if (idx < 0 || idx > 4)
518 return 0;
519
520 switch (pkt_type) {
521 case SYN_NEWABS:
522 case SYN_NEWABS_RELAXED:
523 return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx];
524
525 case SYN_NEWABS_STRICT:
526 return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx];
527
528 case SYN_OLDABS:
529 return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx];
530
531 default:
532 printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type);
533 return 0;
534 }
535 }
536
537 static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse)
538 {
539 int i;
540
541 for (i = 0; i < 5; i++)
542 if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) {
543 printk(KERN_INFO "synaptics: using relaxed packet validation\n");
544 return SYN_NEWABS_RELAXED;
545 }
546
547 return SYN_NEWABS_STRICT;
548 }
549
550 static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
551 {
552 struct synaptics_data *priv = psmouse->private;
553
554 if (psmouse->pktcnt >= 6) { /* Full packet received */
555 if (unlikely(priv->pkt_type == SYN_NEWABS))
556 priv->pkt_type = synaptics_detect_pkt_type(psmouse);
557
558 if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) {
559 if (psmouse->ps2dev.serio->child)
560 synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet);
561 } else
562 synaptics_process_packet(psmouse);
563
564 return PSMOUSE_FULL_PACKET;
565 }
566
567 return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ?
568 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
569 }
570
571 /*****************************************************************************
572 * Driver initialization/cleanup functions
573 ****************************************************************************/
574 static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
575 {
576 int i;
577
578 __set_bit(EV_ABS, dev->evbit);
579 input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0);
580 input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0);
581 input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
582 __set_bit(ABS_TOOL_WIDTH, dev->absbit);
583
584 __set_bit(EV_KEY, dev->evbit);
585 __set_bit(BTN_TOUCH, dev->keybit);
586 __set_bit(BTN_TOOL_FINGER, dev->keybit);
587 __set_bit(BTN_LEFT, dev->keybit);
588 __set_bit(BTN_RIGHT, dev->keybit);
589
590 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
591 __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
592 __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
593 }
594
595 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
596 __set_bit(BTN_MIDDLE, dev->keybit);
597
598 if (SYN_CAP_FOUR_BUTTON(priv->capabilities) ||
599 SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
600 __set_bit(BTN_FORWARD, dev->keybit);
601 __set_bit(BTN_BACK, dev->keybit);
602 }
603
604 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
605 __set_bit(BTN_0 + i, dev->keybit);
606
607 __clear_bit(EV_REL, dev->evbit);
608 __clear_bit(REL_X, dev->relbit);
609 __clear_bit(REL_Y, dev->relbit);
610
611 dev->absres[ABS_X] = priv->x_res;
612 dev->absres[ABS_Y] = priv->y_res;
613
614 if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
615 /* Clickpads report only left button */
616 __clear_bit(BTN_RIGHT, dev->keybit);
617 __clear_bit(BTN_MIDDLE, dev->keybit);
618 }
619 }
620
621 static void synaptics_disconnect(struct psmouse *psmouse)
622 {
623 synaptics_reset(psmouse);
624 kfree(psmouse->private);
625 psmouse->private = NULL;
626 }
627
628 static int synaptics_reconnect(struct psmouse *psmouse)
629 {
630 struct synaptics_data *priv = psmouse->private;
631 struct synaptics_data old_priv = *priv;
632
633 psmouse_reset(psmouse);
634
635 if (synaptics_detect(psmouse, 0))
636 return -1;
637
638 if (synaptics_query_hardware(psmouse)) {
639 printk(KERN_ERR "Unable to query Synaptics hardware.\n");
640 return -1;
641 }
642
643 if (old_priv.identity != priv->identity ||
644 old_priv.model_id != priv->model_id ||
645 old_priv.capabilities != priv->capabilities ||
646 old_priv.ext_cap != priv->ext_cap)
647 return -1;
648
649 if (synaptics_set_absolute_mode(psmouse)) {
650 printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
651 return -1;
652 }
653
654 return 0;
655 }
656
657 #if defined(__i386__)
658 #include <linux/dmi.h>
659 static const struct dmi_system_id toshiba_dmi_table[] = {
660 {
661 .ident = "Toshiba Satellite",
662 .matches = {
663 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
664 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"),
665 },
666 },
667 {
668 .ident = "Toshiba Dynabook",
669 .matches = {
670 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
671 DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"),
672 },
673 },
674 {
675 .ident = "Toshiba Portege M300",
676 .matches = {
677 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
678 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"),
679 },
680
681 },
682 {
683 .ident = "Toshiba Portege M300",
684 .matches = {
685 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
686 DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"),
687 DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"),
688 },
689
690 },
691 { }
692 };
693 #endif
694
695 int synaptics_init(struct psmouse *psmouse)
696 {
697 struct synaptics_data *priv;
698
699 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL);
700 if (!priv)
701 return -1;
702
703 psmouse_reset(psmouse);
704
705 if (synaptics_query_hardware(psmouse)) {
706 printk(KERN_ERR "Unable to query Synaptics hardware.\n");
707 goto init_fail;
708 }
709
710 if (synaptics_set_absolute_mode(psmouse)) {
711 printk(KERN_ERR "Unable to initialize Synaptics hardware.\n");
712 goto init_fail;
713 }
714
715 priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
716
717 printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n",
718 SYN_ID_MODEL(priv->identity),
719 SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
720 priv->model_id, priv->capabilities, priv->ext_cap, priv->ext_cap_0c);
721
722 set_input_params(psmouse->dev, priv);
723
724 /*
725 * Encode touchpad model so that it can be used to set
726 * input device->id.version and be visible to userspace.
727 * Because version is __u16 we have to drop something.
728 * Hardware info bits seem to be good candidates as they
729 * are documented to be for Synaptics corp. internal use.
730 */
731 psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) |
732 (priv->model_id & 0x000000ff);
733
734 psmouse->protocol_handler = synaptics_process_byte;
735 psmouse->set_rate = synaptics_set_rate;
736 psmouse->disconnect = synaptics_disconnect;
737 psmouse->reconnect = synaptics_reconnect;
738 psmouse->cleanup = synaptics_reset;
739 psmouse->pktsize = 6;
740 /* Synaptics can usually stay in sync without extra help */
741 psmouse->resync_time = 0;
742
743 if (SYN_CAP_PASS_THROUGH(priv->capabilities))
744 synaptics_pt_create(psmouse);
745
746 #if defined(__i386__)
747 /*
748 * Toshiba's KBC seems to have trouble handling data from
749 * Synaptics as full rate, switch to lower rate which is roughly
750 * thye same as rate of standard PS/2 mouse.
751 */
752 if (psmouse->rate >= 80 && dmi_check_system(toshiba_dmi_table)) {
753 printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n",
754 dmi_get_system_info(DMI_PRODUCT_NAME));
755 psmouse->rate = 40;
756 }
757 #endif
758
759 return 0;
760
761 init_fail:
762 kfree(priv);
763 return -1;
764 }
765
766 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */
767
768 int synaptics_init(struct psmouse *psmouse)
769 {
770 return -ENOSYS;
771 }
772
773 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */
774
Linux MOXA ART SoC ARM port