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tile: nohz: warn if nohz_full uses hypervisor shared cores
[linux-2.6/btrfs-unstable.git] / drivers / input / mouse / synaptics.c
blobf2cceb6493a0aea304c838043735ac3889041438
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/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/slab.h>
33 #include "psmouse.h"
34 #include "synaptics.h"
35
36 /*
37 * The x/y limits are taken from the Synaptics TouchPad interfacing Guide,
38 * section 2.3.2, which says that they should be valid regardless of the
39 * actual size of the sensor.
40 * Note that newer firmware allows querying device for maximum useable
41 * coordinates.
42 */
43 #define XMIN 0
44 #define XMAX 6143
45 #define YMIN 0
46 #define YMAX 6143
47 #define XMIN_NOMINAL 1472
48 #define XMAX_NOMINAL 5472
49 #define YMIN_NOMINAL 1408
50 #define YMAX_NOMINAL 4448
51
52 /* Size in bits of absolute position values reported by the hardware */
53 #define ABS_POS_BITS 13
54
55 /*
56 * These values should represent the absolute maximum value that will
57 * be reported for a positive position value. Some Synaptics firmware
58 * uses this value to indicate a finger near the edge of the touchpad
59 * whose precise position cannot be determined.
60 *
61 * At least one touchpad is known to report positions in excess of this
62 * value which are actually negative values truncated to the 13-bit
63 * reporting range. These values have never been observed to be lower
64 * than 8184 (i.e. -8), so we treat all values greater than 8176 as
65 * negative and any other value as positive.
66 */
67 #define X_MAX_POSITIVE 8176
68 #define Y_MAX_POSITIVE 8176
69
70 /* maximum ABS_MT_POSITION displacement (in mm) */
71 #define DMAX 10
72
73 /*****************************************************************************
74 * Stuff we need even when we do not want native Synaptics support
75 ****************************************************************************/
76
77 /*
78 * Set the synaptics touchpad mode byte by special commands
79 */
80 static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode)
81 {
82 unsigned char param[1];
83
84 if (psmouse_sliced_command(psmouse, mode))
85 return -1;
86 param[0] = SYN_PS_SET_MODE2;
87 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE))
88 return -1;
89 return 0;
90 }
91
92 int synaptics_detect(struct psmouse *psmouse, bool set_properties)
93 {
94 struct ps2dev *ps2dev = &psmouse->ps2dev;
95 unsigned char param[4];
96
97 param[0] = 0;
98
99 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
100 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
101 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
102 ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES);
103 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO);
104
105 if (param[1] != 0x47)
106 return -ENODEV;
107
108 if (set_properties) {
109 psmouse->vendor = "Synaptics";
110 psmouse->name = "TouchPad";
111 }
112
113 return 0;
114 }
115
116 void synaptics_reset(struct psmouse *psmouse)
117 {
118 /* reset touchpad back to relative mode, gestures enabled */
119 synaptics_mode_cmd(psmouse, 0);
120 }
121
122 #ifdef CONFIG_MOUSE_PS2_SYNAPTICS
123
124 static bool cr48_profile_sensor;
125
126 struct min_max_quirk {
127 const char * const *pnp_ids;
128 int x_min, x_max, y_min, y_max;
129 };
130
131 static const struct min_max_quirk min_max_pnpid_table[] = {
132 {
133 (const char * const []){"LEN0033", NULL},
134 1024, 5052, 2258, 4832
135 },
136 {
137 (const char * const []){"LEN0035", "LEN0042", NULL},
138 1232, 5710, 1156, 4696
139 },
140 {
141 (const char * const []){"LEN0034", "LEN0036", "LEN0037",
142 "LEN0039", "LEN2002", "LEN2004",
143 NULL},
144 1024, 5112, 2024, 4832
145 },
146 {
147 (const char * const []){"LEN2001", NULL},
148 1024, 5022, 2508, 4832
149 },
150 {
151 (const char * const []){"LEN2006", NULL},
152 1264, 5675, 1171, 4688
153 },
154 { }
155 };
156
157 /* This list has been kindly provided by Synaptics. */
158 static const char * const topbuttonpad_pnp_ids[] = {
159 "LEN0017",
160 "LEN0018",
161 "LEN0019",
162 "LEN0023",
163 "LEN002A",
164 "LEN002B",
165 "LEN002C",
166 "LEN002D",
167 "LEN002E",
168 "LEN0033", /* Helix */
169 "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */
170 "LEN0035", /* X240 */
171 "LEN0036", /* T440 */
172 "LEN0037", /* X1 Carbon 2nd */
173 "LEN0038",
174 "LEN0039", /* T440s */
175 "LEN0041",
176 "LEN0042", /* Yoga */
177 "LEN0045",
178 "LEN0046",
179 "LEN0047",
180 "LEN0048",
181 "LEN0049",
182 "LEN2000",
183 "LEN2001", /* Edge E431 */
184 "LEN2002", /* Edge E531 */
185 "LEN2003",
186 "LEN2004", /* L440 */
187 "LEN2005",
188 "LEN2006",
189 "LEN2007",
190 "LEN2008",
191 "LEN2009",
192 "LEN200A",
193 "LEN200B",
194 NULL
195 };
196
197 /*****************************************************************************
198 * Synaptics communications functions
199 ****************************************************************************/
200
201 /*
202 * Synaptics touchpads report the y coordinate from bottom to top, which is
203 * opposite from what userspace expects.
204 * This function is used to invert y before reporting.
205 */
206 static int synaptics_invert_y(int y)
207 {
208 return YMAX_NOMINAL + YMIN_NOMINAL - y;
209 }
210
211 /*
212 * Send a command to the synpatics touchpad by special commands
213 */
214 static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param)
215 {
216 if (psmouse_sliced_command(psmouse, c))
217 return -1;
218 if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO))
219 return -1;
220 return 0;
221 }
222
223 /*
224 * Read the model-id bytes from the touchpad
225 * see also SYN_MODEL_* macros
226 */
227 static int synaptics_model_id(struct psmouse *psmouse)
228 {
229 struct synaptics_data *priv = psmouse->private;
230 unsigned char mi[3];
231
232 if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi))
233 return -1;
234 priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2];
235 return 0;
236 }
237
238 /*
239 * Read the board id from the touchpad
240 * The board id is encoded in the "QUERY MODES" response
241 */
242 static int synaptics_board_id(struct psmouse *psmouse)
243 {
244 struct synaptics_data *priv = psmouse->private;
245 unsigned char bid[3];
246
247 if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid))
248 return -1;
249 priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1];
250 return 0;
251 }
252
253 /*
254 * Read the firmware id from the touchpad
255 */
256 static int synaptics_firmware_id(struct psmouse *psmouse)
257 {
258 struct synaptics_data *priv = psmouse->private;
259 unsigned char fwid[3];
260
261 if (synaptics_send_cmd(psmouse, SYN_QUE_FIRMWARE_ID, fwid))
262 return -1;
263 priv->firmware_id = (fwid[0] << 16) | (fwid[1] << 8) | fwid[2];
264 return 0;
265 }
266
267 /*
268 * Read the capability-bits from the touchpad
269 * see also the SYN_CAP_* macros
270 */
271 static int synaptics_capability(struct psmouse *psmouse)
272 {
273 struct synaptics_data *priv = psmouse->private;
274 unsigned char cap[3];
275
276 if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap))
277 return -1;
278 priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2];
279 priv->ext_cap = priv->ext_cap_0c = 0;
280
281 /*
282 * Older firmwares had submodel ID fixed to 0x47
283 */
284 if (SYN_ID_FULL(priv->identity) < 0x705 &&
285 SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) {
286 return -1;
287 }
288
289 /*
290 * Unless capExtended is set the rest of the flags should be ignored
291 */
292 if (!SYN_CAP_EXTENDED(priv->capabilities))
293 priv->capabilities = 0;
294
295 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) {
296 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) {
297 psmouse_warn(psmouse,
298 "device claims to have extended capabilities, but I'm not able to read them.\n");
299 } else {
300 priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2];
301
302 /*
303 * if nExtBtn is greater than 8 it should be considered
304 * invalid and treated as 0
305 */
306 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8)
307 priv->ext_cap &= 0xff0fff;
308 }
309 }
310
311 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) {
312 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) {
313 psmouse_warn(psmouse,
314 "device claims to have extended capability 0x0c, but I'm not able to read it.\n");
315 } else {
316 priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2];
317 }
318 }
319
320 return 0;
321 }
322
323 /*
324 * Identify Touchpad
325 * See also the SYN_ID_* macros
326 */
327 static int synaptics_identify(struct psmouse *psmouse)
328 {
329 struct synaptics_data *priv = psmouse->private;
330 unsigned char id[3];
331
332 if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id))
333 return -1;
334 priv->identity = (id[0]<<16) | (id[1]<<8) | id[2];
335 if (SYN_ID_IS_SYNAPTICS(priv->identity))
336 return 0;
337 return -1;
338 }
339
340 /*
341 * Read touchpad resolution and maximum reported coordinates
342 * Resolution is left zero if touchpad does not support the query
343 */
344
345 static int synaptics_resolution(struct psmouse *psmouse)
346 {
347 struct synaptics_data *priv = psmouse->private;
348 unsigned char resp[3];
349 int i;
350
351 if (SYN_ID_MAJOR(priv->identity) < 4)
352 return 0;
353
354 if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) {
355 if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) {
356 priv->x_res = resp[0]; /* x resolution in units/mm */
357 priv->y_res = resp[2]; /* y resolution in units/mm */
358 }
359 }
360
361 for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) {
362 if (psmouse_matches_pnp_id(psmouse,
363 min_max_pnpid_table[i].pnp_ids)) {
364 priv->x_min = min_max_pnpid_table[i].x_min;
365 priv->x_max = min_max_pnpid_table[i].x_max;
366 priv->y_min = min_max_pnpid_table[i].y_min;
367 priv->y_max = min_max_pnpid_table[i].y_max;
368 return 0;
369 }
370 }
371
372 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 &&
373 SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) {
374 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) {
375 psmouse_warn(psmouse,
376 "device claims to have max coordinates query, but I'm not able to read it.\n");
377 } else {
378 priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
379 priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
380 }
381 }
382
383 if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 &&
384 SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) {
385 if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) {
386 psmouse_warn(psmouse,
387 "device claims to have min coordinates query, but I'm not able to read it.\n");
388 } else {
389 priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1);
390 priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3);
391 }
392 }
393
394 return 0;
395 }
396
397 static int synaptics_query_hardware(struct psmouse *psmouse)
398 {
399 if (synaptics_identify(psmouse))
400 return -1;
401 if (synaptics_model_id(psmouse))
402 return -1;
403 if (synaptics_firmware_id(psmouse))
404 return -1;
405 if (synaptics_board_id(psmouse))
406 return -1;
407 if (synaptics_capability(psmouse))
408 return -1;
409 if (synaptics_resolution(psmouse))
410 return -1;
411
412 return 0;
413 }
414
415 static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse)
416 {
417 static unsigned char param = 0xc8;
418 struct synaptics_data *priv = psmouse->private;
419
420 if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
421 SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)))
422 return 0;
423
424 if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL))
425 return -1;
426
427 if (ps2_command(&psmouse->ps2dev, &param, PSMOUSE_CMD_SETRATE))
428 return -1;
429
430 /* Advanced gesture mode also sends multi finger data */
431 priv->capabilities |= BIT(1);
432
433 return 0;
434 }
435
436 static int synaptics_set_mode(struct psmouse *psmouse)
437 {
438 struct synaptics_data *priv = psmouse->private;
439
440 priv->mode = 0;
441 if (priv->absolute_mode)
442 priv->mode |= SYN_BIT_ABSOLUTE_MODE;
443 if (priv->disable_gesture)
444 priv->mode |= SYN_BIT_DISABLE_GESTURE;
445 if (psmouse->rate >= 80)
446 priv->mode |= SYN_BIT_HIGH_RATE;
447 if (SYN_CAP_EXTENDED(priv->capabilities))
448 priv->mode |= SYN_BIT_W_MODE;
449
450 if (synaptics_mode_cmd(psmouse, priv->mode))
451 return -1;
452
453 if (priv->absolute_mode &&
454 synaptics_set_advanced_gesture_mode(psmouse)) {
455 psmouse_err(psmouse, "Advanced gesture mode init failed.\n");
456 return -1;
457 }
458
459 return 0;
460 }
461
462 static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate)
463 {
464 struct synaptics_data *priv = psmouse->private;
465
466 if (rate >= 80) {
467 priv->mode |= SYN_BIT_HIGH_RATE;
468 psmouse->rate = 80;
469 } else {
470 priv->mode &= ~SYN_BIT_HIGH_RATE;
471 psmouse->rate = 40;
472 }
473
474 synaptics_mode_cmd(psmouse, priv->mode);
475 }
476
477 /*****************************************************************************
478 * Synaptics pass-through PS/2 port support
479 ****************************************************************************/
480 static int synaptics_pt_write(struct serio *serio, unsigned char c)
481 {
482 struct psmouse *parent = serio_get_drvdata(serio->parent);
483 char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */
484
485 if (psmouse_sliced_command(parent, c))
486 return -1;
487 if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE))
488 return -1;
489 return 0;
490 }
491
492 static int synaptics_pt_start(struct serio *serio)
493 {
494 struct psmouse *parent = serio_get_drvdata(serio->parent);
495 struct synaptics_data *priv = parent->private;
496
497 serio_pause_rx(parent->ps2dev.serio);
498 priv->pt_port = serio;
499 serio_continue_rx(parent->ps2dev.serio);
500
501 return 0;
502 }
503
504 static void synaptics_pt_stop(struct serio *serio)
505 {
506 struct psmouse *parent = serio_get_drvdata(serio->parent);
507 struct synaptics_data *priv = parent->private;
508
509 serio_pause_rx(parent->ps2dev.serio);
510 priv->pt_port = NULL;
511 serio_continue_rx(parent->ps2dev.serio);
512 }
513
514 static int synaptics_is_pt_packet(unsigned char *buf)
515 {
516 return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4;
517 }
518
519 static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet)
520 {
521 struct psmouse *child = serio_get_drvdata(ptport);
522
523 if (child && child->state == PSMOUSE_ACTIVATED) {
524 serio_interrupt(ptport, packet[1], 0);
525 serio_interrupt(ptport, packet[4], 0);
526 serio_interrupt(ptport, packet[5], 0);
527 if (child->pktsize == 4)
528 serio_interrupt(ptport, packet[2], 0);
529 } else
530 serio_interrupt(ptport, packet[1], 0);
531 }
532
533 static void synaptics_pt_activate(struct psmouse *psmouse)
534 {
535 struct synaptics_data *priv = psmouse->private;
536 struct psmouse *child = serio_get_drvdata(priv->pt_port);
537
538 /* adjust the touchpad to child's choice of protocol */
539 if (child) {
540 if (child->pktsize == 4)
541 priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT;
542 else
543 priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT;
544
545 if (synaptics_mode_cmd(psmouse, priv->mode))
546 psmouse_warn(psmouse,
547 "failed to switch guest protocol\n");
548 }
549 }
550
551 static void synaptics_pt_create(struct psmouse *psmouse)
552 {
553 struct serio *serio;
554
555 serio = kzalloc(sizeof(struct serio), GFP_KERNEL);
556 if (!serio) {
557 psmouse_err(psmouse,
558 "not enough memory for pass-through port\n");
559 return;
560 }
561
562 serio->id.type = SERIO_PS_PSTHRU;
563 strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name));
564 strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name));
565 serio->write = synaptics_pt_write;
566 serio->start = synaptics_pt_start;
567 serio->stop = synaptics_pt_stop;
568 serio->parent = psmouse->ps2dev.serio;
569
570 psmouse->pt_activate = synaptics_pt_activate;
571
572 psmouse_info(psmouse, "serio: %s port at %s\n",
573 serio->name, psmouse->phys);
574 serio_register_port(serio);
575 }
576
577 /*****************************************************************************
578 * Functions to interpret the absolute mode packets
579 ****************************************************************************/
580
581 static void synaptics_parse_agm(const unsigned char buf[],
582 struct synaptics_data *priv,
583 struct synaptics_hw_state *hw)
584 {
585 struct synaptics_hw_state *agm = &priv->agm;
586 int agm_packet_type;
587
588 agm_packet_type = (buf[5] & 0x30) >> 4;
589 switch (agm_packet_type) {
590 case 1:
591 /* Gesture packet: (x, y, z) half resolution */
592 agm->w = hw->w;
593 agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1;
594 agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1;
595 agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1;
596 break;
597
598 case 2:
599 /* AGM-CONTACT packet: we are only interested in the count */
600 priv->agm_count = buf[1];
601 break;
602
603 default:
604 break;
605 }
606 }
607
608 static bool is_forcepad;
609
610 static int synaptics_parse_hw_state(const unsigned char buf[],
611 struct synaptics_data *priv,
612 struct synaptics_hw_state *hw)
613 {
614 memset(hw, 0, sizeof(struct synaptics_hw_state));
615
616 if (SYN_MODEL_NEWABS(priv->model_id)) {
617 hw->w = (((buf[0] & 0x30) >> 2) |
618 ((buf[0] & 0x04) >> 1) |
619 ((buf[3] & 0x04) >> 2));
620
621 if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
622 SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) &&
623 hw->w == 2) {
624 synaptics_parse_agm(buf, priv, hw);
625 return 1;
626 }
627
628 hw->x = (((buf[3] & 0x10) << 8) |
629 ((buf[1] & 0x0f) << 8) |
630 buf[4]);
631 hw->y = (((buf[3] & 0x20) << 7) |
632 ((buf[1] & 0xf0) << 4) |
633 buf[5]);
634 hw->z = buf[2];
635
636 hw->left = (buf[0] & 0x01) ? 1 : 0;
637 hw->right = (buf[0] & 0x02) ? 1 : 0;
638
639 if (is_forcepad) {
640 /*
641 * ForcePads, like Clickpads, use middle button
642 * bits to report primary button clicks.
643 * Unfortunately they report primary button not
644 * only when user presses on the pad above certain
645 * threshold, but also when there are more than one
646 * finger on the touchpad, which interferes with
647 * out multi-finger gestures.
648 */
649 if (hw->z == 0) {
650 /* No contacts */
651 priv->press = priv->report_press = false;
652 } else if (hw->w >= 4 && ((buf[0] ^ buf[3]) & 0x01)) {
653 /*
654 * Single-finger touch with pressure above
655 * the threshold. If pressure stays long
656 * enough, we'll start reporting primary
657 * button. We rely on the device continuing
658 * sending data even if finger does not
659 * move.
660 */
661 if (!priv->press) {
662 priv->press_start = jiffies;
663 priv->press = true;
664 } else if (time_after(jiffies,
665 priv->press_start +
666 msecs_to_jiffies(50))) {
667 priv->report_press = true;
668 }
669 } else {
670 priv->press = false;
671 }
672
673 hw->left = priv->report_press;
674
675 } else if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
676 /*
677 * Clickpad's button is transmitted as middle button,
678 * however, since it is primary button, we will report
679 * it as BTN_LEFT.
680 */
681 hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
682
683 } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
684 hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
685 if (hw->w == 2)
686 hw->scroll = (signed char)(buf[1]);
687 }
688
689 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
690 hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0;
691 hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0;
692 }
693
694 if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) &&
695 ((buf[0] ^ buf[3]) & 0x02)) {
696 switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) {
697 default:
698 /*
699 * if nExtBtn is greater than 8 it should be
700 * considered invalid and treated as 0
701 */
702 break;
703 case 8:
704 hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0;
705 hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0;
706 case 6:
707 hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0;
708 hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0;
709 case 4:
710 hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0;
711 hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0;
712 case 2:
713 hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0;
714 hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0;
715 }
716 }
717 } else {
718 hw->x = (((buf[1] & 0x1f) << 8) | buf[2]);
719 hw->y = (((buf[4] & 0x1f) << 8) | buf[5]);
720
721 hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F));
722 hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1));
723
724 hw->left = (buf[0] & 0x01) ? 1 : 0;
725 hw->right = (buf[0] & 0x02) ? 1 : 0;
726 }
727
728 /*
729 * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE
730 * is used by some firmware to indicate a finger at the edge of
731 * the touchpad whose precise position cannot be determined, so
732 * convert these values to the maximum axis value.
733 */
734 if (hw->x > X_MAX_POSITIVE)
735 hw->x -= 1 << ABS_POS_BITS;
736 else if (hw->x == X_MAX_POSITIVE)
737 hw->x = XMAX;
738
739 if (hw->y > Y_MAX_POSITIVE)
740 hw->y -= 1 << ABS_POS_BITS;
741 else if (hw->y == Y_MAX_POSITIVE)
742 hw->y = YMAX;
743
744 return 0;
745 }
746
747 static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot,
748 bool active, int x, int y)
749 {
750 input_mt_slot(dev, slot);
751 input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
752 if (active) {
753 input_report_abs(dev, ABS_MT_POSITION_X, x);
754 input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y));
755 }
756 }
757
758 static void synaptics_report_semi_mt_data(struct input_dev *dev,
759 const struct synaptics_hw_state *a,
760 const struct synaptics_hw_state *b,
761 int num_fingers)
762 {
763 if (num_fingers >= 2) {
764 synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x),
765 min(a->y, b->y));
766 synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x),
767 max(a->y, b->y));
768 } else if (num_fingers == 1) {
769 synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y);
770 synaptics_report_semi_mt_slot(dev, 1, false, 0, 0);
771 } else {
772 synaptics_report_semi_mt_slot(dev, 0, false, 0, 0);
773 synaptics_report_semi_mt_slot(dev, 1, false, 0, 0);
774 }
775 }
776
777 static void synaptics_report_buttons(struct psmouse *psmouse,
778 const struct synaptics_hw_state *hw)
779 {
780 struct input_dev *dev = psmouse->dev;
781 struct synaptics_data *priv = psmouse->private;
782 int i;
783
784 input_report_key(dev, BTN_LEFT, hw->left);
785 input_report_key(dev, BTN_RIGHT, hw->right);
786
787 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
788 input_report_key(dev, BTN_MIDDLE, hw->middle);
789
790 if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) {
791 input_report_key(dev, BTN_FORWARD, hw->up);
792 input_report_key(dev, BTN_BACK, hw->down);
793 }
794
795 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
796 input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i));
797 }
798
799 static void synaptics_report_mt_data(struct psmouse *psmouse,
800 const struct synaptics_hw_state *sgm,
801 int num_fingers)
802 {
803 struct input_dev *dev = psmouse->dev;
804 struct synaptics_data *priv = psmouse->private;
805 const struct synaptics_hw_state *hw[2] = { sgm, &priv->agm };
806 struct input_mt_pos pos[2];
807 int slot[2], nsemi, i;
808
809 nsemi = clamp_val(num_fingers, 0, 2);
810
811 for (i = 0; i < nsemi; i++) {
812 pos[i].x = hw[i]->x;
813 pos[i].y = synaptics_invert_y(hw[i]->y);
814 }
815
816 input_mt_assign_slots(dev, slot, pos, nsemi, DMAX * priv->x_res);
817
818 for (i = 0; i < nsemi; i++) {
819 input_mt_slot(dev, slot[i]);
820 input_mt_report_slot_state(dev, MT_TOOL_FINGER, true);
821 input_report_abs(dev, ABS_MT_POSITION_X, pos[i].x);
822 input_report_abs(dev, ABS_MT_POSITION_Y, pos[i].y);
823 input_report_abs(dev, ABS_MT_PRESSURE, hw[i]->z);
824 }
825
826 input_mt_drop_unused(dev);
827
828 /* Don't use active slot count to generate BTN_TOOL events. */
829 input_mt_report_pointer_emulation(dev, false);
830
831 /* Send the number of fingers reported by touchpad itself. */
832 input_mt_report_finger_count(dev, num_fingers);
833
834 synaptics_report_buttons(psmouse, sgm);
835
836 input_sync(dev);
837 }
838
839 static void synaptics_image_sensor_process(struct psmouse *psmouse,
840 struct synaptics_hw_state *sgm)
841 {
842 struct synaptics_data *priv = psmouse->private;
843 int num_fingers;
844
845 /*
846 * Update mt_state using the new finger count and current mt_state.
847 */
848 if (sgm->z == 0)
849 num_fingers = 0;
850 else if (sgm->w >= 4)
851 num_fingers = 1;
852 else if (sgm->w == 0)
853 num_fingers = 2;
854 else if (sgm->w == 1)
855 num_fingers = priv->agm_count ? priv->agm_count : 3;
856 else
857 num_fingers = 4;
858
859 /* Send resulting input events to user space */
860 synaptics_report_mt_data(psmouse, sgm, num_fingers);
861 }
862
863 /*
864 * called for each full received packet from the touchpad
865 */
866 static void synaptics_process_packet(struct psmouse *psmouse)
867 {
868 struct input_dev *dev = psmouse->dev;
869 struct synaptics_data *priv = psmouse->private;
870 struct synaptics_hw_state hw;
871 int num_fingers;
872 int finger_width;
873
874 if (synaptics_parse_hw_state(psmouse->packet, priv, &hw))
875 return;
876
877 if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
878 synaptics_image_sensor_process(psmouse, &hw);
879 return;
880 }
881
882 if (hw.scroll) {
883 priv->scroll += hw.scroll;
884
885 while (priv->scroll >= 4) {
886 input_report_key(dev, BTN_BACK, !hw.down);
887 input_sync(dev);
888 input_report_key(dev, BTN_BACK, hw.down);
889 input_sync(dev);
890 priv->scroll -= 4;
891 }
892 while (priv->scroll <= -4) {
893 input_report_key(dev, BTN_FORWARD, !hw.up);
894 input_sync(dev);
895 input_report_key(dev, BTN_FORWARD, hw.up);
896 input_sync(dev);
897 priv->scroll += 4;
898 }
899 return;
900 }
901
902 if (hw.z > 0 && hw.x > 1) {
903 num_fingers = 1;
904 finger_width = 5;
905 if (SYN_CAP_EXTENDED(priv->capabilities)) {
906 switch (hw.w) {
907 case 0 ... 1:
908 if (SYN_CAP_MULTIFINGER(priv->capabilities))
909 num_fingers = hw.w + 2;
910 break;
911 case 2:
912 if (SYN_MODEL_PEN(priv->model_id))
913 ; /* Nothing, treat a pen as a single finger */
914 break;
915 case 4 ... 15:
916 if (SYN_CAP_PALMDETECT(priv->capabilities))
917 finger_width = hw.w;
918 break;
919 }
920 }
921 } else {
922 num_fingers = 0;
923 finger_width = 0;
924 }
925
926 if (cr48_profile_sensor) {
927 synaptics_report_mt_data(psmouse, &hw, num_fingers);
928 return;
929 }
930
931 if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c))
932 synaptics_report_semi_mt_data(dev, &hw, &priv->agm,
933 num_fingers);
934
935 /* Post events
936 * BTN_TOUCH has to be first as mousedev relies on it when doing
937 * absolute -> relative conversion
938 */
939 if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1);
940 if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0);
941
942 if (num_fingers > 0) {
943 input_report_abs(dev, ABS_X, hw.x);
944 input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y));
945 }
946 input_report_abs(dev, ABS_PRESSURE, hw.z);
947
948 if (SYN_CAP_PALMDETECT(priv->capabilities))
949 input_report_abs(dev, ABS_TOOL_WIDTH, finger_width);
950
951 input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1);
952 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
953 input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2);
954 input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3);
955 }
956
957 synaptics_report_buttons(psmouse, &hw);
958
959 input_sync(dev);
960 }
961
962 static int synaptics_validate_byte(struct psmouse *psmouse,
963 int idx, unsigned char pkt_type)
964 {
965 static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 };
966 static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 };
967 static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 };
968 static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 };
969 static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 };
970 const char *packet = psmouse->packet;
971
972 if (idx < 0 || idx > 4)
973 return 0;
974
975 switch (pkt_type) {
976
977 case SYN_NEWABS:
978 case SYN_NEWABS_RELAXED:
979 return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx];
980
981 case SYN_NEWABS_STRICT:
982 return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx];
983
984 case SYN_OLDABS:
985 return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx];
986
987 default:
988 psmouse_err(psmouse, "unknown packet type %d\n", pkt_type);
989 return 0;
990 }
991 }
992
993 static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse)
994 {
995 int i;
996
997 for (i = 0; i < 5; i++)
998 if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) {
999 psmouse_info(psmouse, "using relaxed packet validation\n");
1000 return SYN_NEWABS_RELAXED;
1001 }
1002
1003 return SYN_NEWABS_STRICT;
1004 }
1005
1006 static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse)
1007 {
1008 struct synaptics_data *priv = psmouse->private;
1009
1010 if (psmouse->pktcnt >= 6) { /* Full packet received */
1011 if (unlikely(priv->pkt_type == SYN_NEWABS))
1012 priv->pkt_type = synaptics_detect_pkt_type(psmouse);
1013
1014 if (SYN_CAP_PASS_THROUGH(priv->capabilities) &&
1015 synaptics_is_pt_packet(psmouse->packet)) {
1016 if (priv->pt_port)
1017 synaptics_pass_pt_packet(priv->pt_port, psmouse->packet);
1018 } else
1019 synaptics_process_packet(psmouse);
1020
1021 return PSMOUSE_FULL_PACKET;
1022 }
1023
1024 return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ?
1025 PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA;
1026 }
1027
1028 /*****************************************************************************
1029 * Driver initialization/cleanup functions
1030 ****************************************************************************/
1031 static void set_abs_position_params(struct input_dev *dev,
1032 struct synaptics_data *priv, int x_code,
1033 int y_code)
1034 {
1035 int x_min = priv->x_min ?: XMIN_NOMINAL;
1036 int x_max = priv->x_max ?: XMAX_NOMINAL;
1037 int y_min = priv->y_min ?: YMIN_NOMINAL;
1038 int y_max = priv->y_max ?: YMAX_NOMINAL;
1039 int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ?
1040 SYN_REDUCED_FILTER_FUZZ : 0;
1041
1042 input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0);
1043 input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0);
1044 input_abs_set_res(dev, x_code, priv->x_res);
1045 input_abs_set_res(dev, y_code, priv->y_res);
1046 }
1047
1048 static void set_input_params(struct psmouse *psmouse,
1049 struct synaptics_data *priv)
1050 {
1051 struct input_dev *dev = psmouse->dev;
1052 int i;
1053
1054 /* Things that apply to both modes */
1055 __set_bit(INPUT_PROP_POINTER, dev->propbit);
1056 __set_bit(EV_KEY, dev->evbit);
1057 __set_bit(BTN_LEFT, dev->keybit);
1058 __set_bit(BTN_RIGHT, dev->keybit);
1059
1060 if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
1061 __set_bit(BTN_MIDDLE, dev->keybit);
1062
1063 if (!priv->absolute_mode) {
1064 /* Relative mode */
1065 __set_bit(EV_REL, dev->evbit);
1066 __set_bit(REL_X, dev->relbit);
1067 __set_bit(REL_Y, dev->relbit);
1068 return;
1069 }
1070
1071 /* Absolute mode */
1072 __set_bit(EV_ABS, dev->evbit);
1073 set_abs_position_params(dev, priv, ABS_X, ABS_Y);
1074 input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
1075
1076 if (cr48_profile_sensor)
1077 input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
1078
1079 if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) {
1080 set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
1081 ABS_MT_POSITION_Y);
1082 /* Image sensors can report per-contact pressure */
1083 input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0);
1084 input_mt_init_slots(dev, 2, INPUT_MT_POINTER | INPUT_MT_TRACK);
1085
1086 /* Image sensors can signal 4 and 5 finger clicks */
1087 __set_bit(BTN_TOOL_QUADTAP, dev->keybit);
1088 __set_bit(BTN_TOOL_QUINTTAP, dev->keybit);
1089 } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) {
1090 set_abs_position_params(dev, priv, ABS_MT_POSITION_X,
1091 ABS_MT_POSITION_Y);
1092 /*
1093 * Profile sensor in CR-48 tracks contacts reasonably well,
1094 * other non-image sensors with AGM use semi-mt.
1095 */
1096 input_mt_init_slots(dev, 2,
1097 INPUT_MT_POINTER |
1098 (cr48_profile_sensor ?
1099 INPUT_MT_TRACK : INPUT_MT_SEMI_MT));
1100 }
1101
1102 if (SYN_CAP_PALMDETECT(priv->capabilities))
1103 input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0);
1104
1105 __set_bit(BTN_TOUCH, dev->keybit);
1106 __set_bit(BTN_TOOL_FINGER, dev->keybit);
1107
1108 if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
1109 __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
1110 __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
1111 }
1112
1113 if (SYN_CAP_FOUR_BUTTON(priv->capabilities) ||
1114 SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
1115 __set_bit(BTN_FORWARD, dev->keybit);
1116 __set_bit(BTN_BACK, dev->keybit);
1117 }
1118
1119 for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++)
1120 __set_bit(BTN_0 + i, dev->keybit);
1121
1122 __clear_bit(EV_REL, dev->evbit);
1123 __clear_bit(REL_X, dev->relbit);
1124 __clear_bit(REL_Y, dev->relbit);
1125
1126 if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) {
1127 __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit);
1128 if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids))
1129 __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit);
1130 /* Clickpads report only left button */
1131 __clear_bit(BTN_RIGHT, dev->keybit);
1132 __clear_bit(BTN_MIDDLE, dev->keybit);
1133 }
1134 }
1135
1136 static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse,
1137 void *data, char *buf)
1138 {
1139 struct synaptics_data *priv = psmouse->private;
1140
1141 return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0');
1142 }
1143
1144 static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse,
1145 void *data, const char *buf,
1146 size_t len)
1147 {
1148 struct synaptics_data *priv = psmouse->private;
1149 unsigned int value;
1150 int err;
1151
1152 err = kstrtouint(buf, 10, &value);
1153 if (err)
1154 return err;
1155
1156 if (value > 1)
1157 return -EINVAL;
1158
1159 if (value == priv->disable_gesture)
1160 return len;
1161
1162 priv->disable_gesture = value;
1163 if (value)
1164 priv->mode |= SYN_BIT_DISABLE_GESTURE;
1165 else
1166 priv->mode &= ~SYN_BIT_DISABLE_GESTURE;
1167
1168 if (synaptics_mode_cmd(psmouse, priv->mode))
1169 return -EIO;
1170
1171 return len;
1172 }
1173
1174 PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL,
1175 synaptics_show_disable_gesture,
1176 synaptics_set_disable_gesture);
1177
1178 static void synaptics_disconnect(struct psmouse *psmouse)
1179 {
1180 struct synaptics_data *priv = psmouse->private;
1181
1182 if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity))
1183 device_remove_file(&psmouse->ps2dev.serio->dev,
1184 &psmouse_attr_disable_gesture.dattr);
1185
1186 synaptics_reset(psmouse);
1187 kfree(priv);
1188 psmouse->private = NULL;
1189 }
1190
1191 static int synaptics_reconnect(struct psmouse *psmouse)
1192 {
1193 struct synaptics_data *priv = psmouse->private;
1194 struct synaptics_data old_priv = *priv;
1195 unsigned char param[2];
1196 int retry = 0;
1197 int error;
1198
1199 do {
1200 psmouse_reset(psmouse);
1201 if (retry) {
1202 /*
1203 * On some boxes, right after resuming, the touchpad
1204 * needs some time to finish initializing (I assume
1205 * it needs time to calibrate) and start responding
1206 * to Synaptics-specific queries, so let's wait a
1207 * bit.
1208 */
1209 ssleep(1);
1210 }
1211 ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID);
1212 error = synaptics_detect(psmouse, 0);
1213 } while (error && ++retry < 3);
1214
1215 if (error)
1216 return -1;
1217
1218 if (retry > 1)
1219 psmouse_dbg(psmouse, "reconnected after %d tries\n", retry);
1220
1221 if (synaptics_query_hardware(psmouse)) {
1222 psmouse_err(psmouse, "Unable to query device.\n");
1223 return -1;
1224 }
1225
1226 if (synaptics_set_mode(psmouse)) {
1227 psmouse_err(psmouse, "Unable to initialize device.\n");
1228 return -1;
1229 }
1230
1231 if (old_priv.identity != priv->identity ||
1232 old_priv.model_id != priv->model_id ||
1233 old_priv.capabilities != priv->capabilities ||
1234 old_priv.ext_cap != priv->ext_cap) {
1235 psmouse_err(psmouse,
1236 "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n",
1237 old_priv.identity, priv->identity,
1238 old_priv.model_id, priv->model_id,
1239 old_priv.capabilities, priv->capabilities,
1240 old_priv.ext_cap, priv->ext_cap);
1241 return -1;
1242 }
1243
1244 return 0;
1245 }
1246
1247 static bool impaired_toshiba_kbc;
1248
1249 static const struct dmi_system_id toshiba_dmi_table[] __initconst = {
1250 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
1251 {
1252 /* Toshiba Satellite */
1253 .matches = {
1254 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1255 DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"),
1256 },
1257 },
1258 {
1259 /* Toshiba Dynabook */
1260 .matches = {
1261 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1262 DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"),
1263 },
1264 },
1265 {
1266 /* Toshiba Portege M300 */
1267 .matches = {
1268 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1269 DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"),
1270 },
1271
1272 },
1273 {
1274 /* Toshiba Portege M300 */
1275 .matches = {
1276 DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"),
1277 DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"),
1278 DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"),
1279 },
1280
1281 },
1282 #endif
1283 { }
1284 };
1285
1286 static bool broken_olpc_ec;
1287
1288 static const struct dmi_system_id olpc_dmi_table[] __initconst = {
1289 #if defined(CONFIG_DMI) && defined(CONFIG_OLPC)
1290 {
1291 /* OLPC XO-1 or XO-1.5 */
1292 .matches = {
1293 DMI_MATCH(DMI_SYS_VENDOR, "OLPC"),
1294 DMI_MATCH(DMI_PRODUCT_NAME, "XO"),
1295 },
1296 },
1297 #endif
1298 { }
1299 };
1300
1301 static const struct dmi_system_id __initconst cr48_dmi_table[] = {
1302 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
1303 {
1304 /* Cr-48 Chromebook (Codename Mario) */
1305 .matches = {
1306 DMI_MATCH(DMI_SYS_VENDOR, "IEC"),
1307 DMI_MATCH(DMI_PRODUCT_NAME, "Mario"),
1308 },
1309 },
1310 #endif
1311 { }
1312 };
1313
1314 static const struct dmi_system_id forcepad_dmi_table[] __initconst = {
1315 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
1316 {
1317 .matches = {
1318 DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
1319 DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook Folio 1040 G1"),
1320 },
1321 },
1322 #endif
1323 { }
1324 };
1325
1326 void __init synaptics_module_init(void)
1327 {
1328 impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table);
1329 broken_olpc_ec = dmi_check_system(olpc_dmi_table);
1330 cr48_profile_sensor = dmi_check_system(cr48_dmi_table);
1331
1332 /*
1333 * Unfortunately ForcePad capability is not exported over PS/2,
1334 * so we have to resort to checking DMI.
1335 */
1336 is_forcepad = dmi_check_system(forcepad_dmi_table);
1337 }
1338
1339 static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode)
1340 {
1341 struct synaptics_data *priv;
1342 int err = -1;
1343
1344 /*
1345 * The OLPC XO has issues with Synaptics' absolute mode; the constant
1346 * packet spew overloads the EC such that key presses on the keyboard
1347 * are missed. Given that, don't even attempt to use Absolute mode.
1348 * Relative mode seems to work just fine.
1349 */
1350 if (absolute_mode && broken_olpc_ec) {
1351 psmouse_info(psmouse,
1352 "OLPC XO detected, not enabling Synaptics protocol.\n");
1353 return -ENODEV;
1354 }
1355
1356 psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL);
1357 if (!priv)
1358 return -ENOMEM;
1359
1360 psmouse_reset(psmouse);
1361
1362 if (synaptics_query_hardware(psmouse)) {
1363 psmouse_err(psmouse, "Unable to query device.\n");
1364 goto init_fail;
1365 }
1366
1367 priv->absolute_mode = absolute_mode;
1368 if (SYN_ID_DISGEST_SUPPORTED(priv->identity))
1369 priv->disable_gesture = true;
1370
1371 if (synaptics_set_mode(psmouse)) {
1372 psmouse_err(psmouse, "Unable to initialize device.\n");
1373 goto init_fail;
1374 }
1375
1376 priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS;
1377
1378 psmouse_info(psmouse,
1379 "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n",
1380 SYN_ID_MODEL(priv->identity),
1381 SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity),
1382 priv->model_id,
1383 priv->capabilities, priv->ext_cap, priv->ext_cap_0c,
1384 priv->board_id, priv->firmware_id);
1385
1386 set_input_params(psmouse, priv);
1387
1388 /*
1389 * Encode touchpad model so that it can be used to set
1390 * input device->id.version and be visible to userspace.
1391 * Because version is __u16 we have to drop something.
1392 * Hardware info bits seem to be good candidates as they
1393 * are documented to be for Synaptics corp. internal use.
1394 */
1395 psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) |
1396 (priv->model_id & 0x000000ff);
1397
1398 if (absolute_mode) {
1399 psmouse->protocol_handler = synaptics_process_byte;
1400 psmouse->pktsize = 6;
1401 } else {
1402 /* Relative mode follows standard PS/2 mouse protocol */
1403 psmouse->protocol_handler = psmouse_process_byte;
1404 psmouse->pktsize = 3;
1405 }
1406
1407 psmouse->set_rate = synaptics_set_rate;
1408 psmouse->disconnect = synaptics_disconnect;
1409 psmouse->reconnect = synaptics_reconnect;
1410 psmouse->cleanup = synaptics_reset;
1411 /* Synaptics can usually stay in sync without extra help */
1412 psmouse->resync_time = 0;
1413
1414 if (SYN_CAP_PASS_THROUGH(priv->capabilities))
1415 synaptics_pt_create(psmouse);
1416
1417 /*
1418 * Toshiba's KBC seems to have trouble handling data from
1419 * Synaptics at full rate. Switch to a lower rate (roughly
1420 * the same rate as a standard PS/2 mouse).
1421 */
1422 if (psmouse->rate >= 80 && impaired_toshiba_kbc) {
1423 psmouse_info(psmouse,
1424 "Toshiba %s detected, limiting rate to 40pps.\n",
1425 dmi_get_system_info(DMI_PRODUCT_NAME));
1426 psmouse->rate = 40;
1427 }
1428
1429 if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) {
1430 err = device_create_file(&psmouse->ps2dev.serio->dev,
1431 &psmouse_attr_disable_gesture.dattr);
1432 if (err) {
1433 psmouse_err(psmouse,
1434 "Failed to create disable_gesture attribute (%d)",
1435 err);
1436 goto init_fail;
1437 }
1438 }
1439
1440 return 0;
1441
1442 init_fail:
1443 kfree(priv);
1444 return err;
1445 }
1446
1447 int synaptics_init(struct psmouse *psmouse)
1448 {
1449 return __synaptics_init(psmouse, true);
1450 }
1451
1452 int synaptics_init_relative(struct psmouse *psmouse)
1453 {
1454 return __synaptics_init(psmouse, false);
1455 }
1456
1457 #else /* CONFIG_MOUSE_PS2_SYNAPTICS */
1458
1459 void __init synaptics_module_init(void)
1460 {
1461 }
1462
1463 int synaptics_init(struct psmouse *psmouse)
1464 {
1465 return -ENOSYS;
1466 }
1467
1468 #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */
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