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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 | /***************************************************************************** | |
71 | * Stuff we need even when we do not want native Synaptics support | |
72 | ****************************************************************************/ | |
73 | ||
74 | /* | |
75 | * Set the synaptics touchpad mode byte by special commands | |
76 | */ | |
77 | static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode) | |
78 | { | |
79 | unsigned char param[1]; | |
80 | ||
81 | if (psmouse_sliced_command(psmouse, mode)) | |
82 | return -1; | |
83 | param[0] = SYN_PS_SET_MODE2; | |
84 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE)) | |
85 | return -1; | |
86 | return 0; | |
87 | } | |
88 | ||
89 | int synaptics_detect(struct psmouse *psmouse, bool set_properties) | |
90 | { | |
91 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
92 | unsigned char param[4]; | |
93 | ||
94 | param[0] = 0; | |
95 | ||
96 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
97 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
98 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
99 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
100 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); | |
101 | ||
102 | if (param[1] != 0x47) | |
103 | return -ENODEV; | |
104 | ||
105 | if (set_properties) { | |
106 | psmouse->vendor = "Synaptics"; | |
107 | psmouse->name = "TouchPad"; | |
108 | } | |
109 | ||
110 | return 0; | |
111 | } | |
112 | ||
113 | void synaptics_reset(struct psmouse *psmouse) | |
114 | { | |
115 | /* reset touchpad back to relative mode, gestures enabled */ | |
116 | synaptics_mode_cmd(psmouse, 0); | |
117 | } | |
118 | ||
119 | #ifdef CONFIG_MOUSE_PS2_SYNAPTICS | |
120 | ||
121 | /***************************************************************************** | |
122 | * Synaptics communications functions | |
123 | ****************************************************************************/ | |
124 | ||
125 | /* | |
126 | * Synaptics touchpads report the y coordinate from bottom to top, which is | |
127 | * opposite from what userspace expects. | |
128 | * This function is used to invert y before reporting. | |
129 | */ | |
130 | static int synaptics_invert_y(int y) | |
131 | { | |
132 | return YMAX_NOMINAL + YMIN_NOMINAL - y; | |
133 | } | |
134 | ||
135 | /* | |
136 | * Send a command to the synpatics touchpad by special commands | |
137 | */ | |
138 | static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) | |
139 | { | |
140 | if (psmouse_sliced_command(psmouse, c)) | |
141 | return -1; | |
142 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) | |
143 | return -1; | |
144 | return 0; | |
145 | } | |
146 | ||
147 | /* | |
148 | * Read the model-id bytes from the touchpad | |
149 | * see also SYN_MODEL_* macros | |
150 | */ | |
151 | static int synaptics_model_id(struct psmouse *psmouse) | |
152 | { | |
153 | struct synaptics_data *priv = psmouse->private; | |
154 | unsigned char mi[3]; | |
155 | ||
156 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) | |
157 | return -1; | |
158 | priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; | |
159 | return 0; | |
160 | } | |
161 | ||
162 | /* | |
163 | * Read the board id from the touchpad | |
164 | * The board id is encoded in the "QUERY MODES" response | |
165 | */ | |
166 | static int synaptics_board_id(struct psmouse *psmouse) | |
167 | { | |
168 | struct synaptics_data *priv = psmouse->private; | |
169 | unsigned char bid[3]; | |
170 | ||
171 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid)) | |
172 | return -1; | |
173 | priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; | |
174 | return 0; | |
175 | } | |
176 | ||
177 | /* | |
178 | * Read the firmware id from the touchpad | |
179 | */ | |
180 | static int synaptics_firmware_id(struct psmouse *psmouse) | |
181 | { | |
182 | struct synaptics_data *priv = psmouse->private; | |
183 | unsigned char fwid[3]; | |
184 | ||
185 | if (synaptics_send_cmd(psmouse, SYN_QUE_FIRMWARE_ID, fwid)) | |
186 | return -1; | |
187 | priv->firmware_id = (fwid[0] << 16) | (fwid[1] << 8) | fwid[2]; | |
188 | return 0; | |
189 | } | |
190 | ||
191 | /* | |
192 | * Read the capability-bits from the touchpad | |
193 | * see also the SYN_CAP_* macros | |
194 | */ | |
195 | static int synaptics_capability(struct psmouse *psmouse) | |
196 | { | |
197 | struct synaptics_data *priv = psmouse->private; | |
198 | unsigned char cap[3]; | |
199 | ||
200 | if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) | |
201 | return -1; | |
202 | priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
203 | priv->ext_cap = priv->ext_cap_0c = 0; | |
204 | ||
205 | /* | |
206 | * Older firmwares had submodel ID fixed to 0x47 | |
207 | */ | |
208 | if (SYN_ID_FULL(priv->identity) < 0x705 && | |
209 | SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) { | |
210 | return -1; | |
211 | } | |
212 | ||
213 | /* | |
214 | * Unless capExtended is set the rest of the flags should be ignored | |
215 | */ | |
216 | if (!SYN_CAP_EXTENDED(priv->capabilities)) | |
217 | priv->capabilities = 0; | |
218 | ||
219 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { | |
220 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { | |
221 | psmouse_warn(psmouse, | |
222 | "device claims to have extended capabilities, but I'm not able to read them.\n"); | |
223 | } else { | |
224 | priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
225 | ||
226 | /* | |
227 | * if nExtBtn is greater than 8 it should be considered | |
228 | * invalid and treated as 0 | |
229 | */ | |
230 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) | |
231 | priv->ext_cap &= 0xff0fff; | |
232 | } | |
233 | } | |
234 | ||
235 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) { | |
236 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) { | |
237 | psmouse_warn(psmouse, | |
238 | "device claims to have extended capability 0x0c, but I'm not able to read it.\n"); | |
239 | } else { | |
240 | priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
241 | } | |
242 | } | |
243 | ||
244 | return 0; | |
245 | } | |
246 | ||
247 | /* | |
248 | * Identify Touchpad | |
249 | * See also the SYN_ID_* macros | |
250 | */ | |
251 | static int synaptics_identify(struct psmouse *psmouse) | |
252 | { | |
253 | struct synaptics_data *priv = psmouse->private; | |
254 | unsigned char id[3]; | |
255 | ||
256 | if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) | |
257 | return -1; | |
258 | priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; | |
259 | if (SYN_ID_IS_SYNAPTICS(priv->identity)) | |
260 | return 0; | |
261 | return -1; | |
262 | } | |
263 | ||
264 | /* | |
265 | * Read touchpad resolution and maximum reported coordinates | |
266 | * Resolution is left zero if touchpad does not support the query | |
267 | */ | |
268 | static int synaptics_resolution(struct psmouse *psmouse) | |
269 | { | |
270 | struct synaptics_data *priv = psmouse->private; | |
271 | unsigned char resp[3]; | |
272 | ||
273 | if (SYN_ID_MAJOR(priv->identity) < 4) | |
274 | return 0; | |
275 | ||
276 | if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) { | |
277 | if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) { | |
278 | priv->x_res = resp[0]; /* x resolution in units/mm */ | |
279 | priv->y_res = resp[2]; /* y resolution in units/mm */ | |
280 | } | |
281 | } | |
282 | ||
283 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && | |
284 | SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { | |
285 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) { | |
286 | psmouse_warn(psmouse, | |
287 | "device claims to have max coordinates query, but I'm not able to read it.\n"); | |
288 | } else { | |
289 | priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); | |
290 | priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
291 | } | |
292 | } | |
293 | ||
294 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 && | |
295 | SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) { | |
296 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) { | |
297 | psmouse_warn(psmouse, | |
298 | "device claims to have min coordinates query, but I'm not able to read it.\n"); | |
299 | } else { | |
300 | priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); | |
301 | priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
302 | } | |
303 | } | |
304 | ||
305 | return 0; | |
306 | } | |
307 | ||
308 | static int synaptics_query_hardware(struct psmouse *psmouse) | |
309 | { | |
310 | if (synaptics_identify(psmouse)) | |
311 | return -1; | |
312 | if (synaptics_model_id(psmouse)) | |
313 | return -1; | |
314 | if (synaptics_firmware_id(psmouse)) | |
315 | return -1; | |
316 | if (synaptics_board_id(psmouse)) | |
317 | return -1; | |
318 | if (synaptics_capability(psmouse)) | |
319 | return -1; | |
320 | if (synaptics_resolution(psmouse)) | |
321 | return -1; | |
322 | ||
323 | return 0; | |
324 | } | |
325 | ||
326 | static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse) | |
327 | { | |
328 | static unsigned char param = 0xc8; | |
329 | struct synaptics_data *priv = psmouse->private; | |
330 | ||
331 | if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || | |
332 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c))) | |
333 | return 0; | |
334 | ||
335 | if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL)) | |
336 | return -1; | |
337 | ||
338 | if (ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE)) | |
339 | return -1; | |
340 | ||
341 | /* Advanced gesture mode also sends multi finger data */ | |
342 | priv->capabilities |= BIT(1); | |
343 | ||
344 | return 0; | |
345 | } | |
346 | ||
347 | static int synaptics_set_mode(struct psmouse *psmouse) | |
348 | { | |
349 | struct synaptics_data *priv = psmouse->private; | |
350 | ||
351 | priv->mode = 0; | |
352 | if (priv->absolute_mode) | |
353 | priv->mode |= SYN_BIT_ABSOLUTE_MODE; | |
354 | if (priv->disable_gesture) | |
355 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
356 | if (psmouse->rate >= 80) | |
357 | priv->mode |= SYN_BIT_HIGH_RATE; | |
358 | if (SYN_CAP_EXTENDED(priv->capabilities)) | |
359 | priv->mode |= SYN_BIT_W_MODE; | |
360 | ||
361 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
362 | return -1; | |
363 | ||
364 | if (priv->absolute_mode && | |
365 | synaptics_set_advanced_gesture_mode(psmouse)) { | |
366 | psmouse_err(psmouse, "Advanced gesture mode init failed.\n"); | |
367 | return -1; | |
368 | } | |
369 | ||
370 | return 0; | |
371 | } | |
372 | ||
373 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
374 | { | |
375 | struct synaptics_data *priv = psmouse->private; | |
376 | ||
377 | if (rate >= 80) { | |
378 | priv->mode |= SYN_BIT_HIGH_RATE; | |
379 | psmouse->rate = 80; | |
380 | } else { | |
381 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
382 | psmouse->rate = 40; | |
383 | } | |
384 | ||
385 | synaptics_mode_cmd(psmouse, priv->mode); | |
386 | } | |
387 | ||
388 | /***************************************************************************** | |
389 | * Synaptics pass-through PS/2 port support | |
390 | ****************************************************************************/ | |
391 | static int synaptics_pt_write(struct serio *serio, unsigned char c) | |
392 | { | |
393 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
394 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ | |
395 | ||
396 | if (psmouse_sliced_command(parent, c)) | |
397 | return -1; | |
398 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) | |
399 | return -1; | |
400 | return 0; | |
401 | } | |
402 | ||
403 | static int synaptics_pt_start(struct serio *serio) | |
404 | { | |
405 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
406 | struct synaptics_data *priv = parent->private; | |
407 | ||
408 | serio_pause_rx(parent->ps2dev.serio); | |
409 | priv->pt_port = serio; | |
410 | serio_continue_rx(parent->ps2dev.serio); | |
411 | ||
412 | return 0; | |
413 | } | |
414 | ||
415 | static void synaptics_pt_stop(struct serio *serio) | |
416 | { | |
417 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
418 | struct synaptics_data *priv = parent->private; | |
419 | ||
420 | serio_pause_rx(parent->ps2dev.serio); | |
421 | priv->pt_port = NULL; | |
422 | serio_continue_rx(parent->ps2dev.serio); | |
423 | } | |
424 | ||
425 | static int synaptics_is_pt_packet(unsigned char *buf) | |
426 | { | |
427 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
428 | } | |
429 | ||
430 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) | |
431 | { | |
432 | struct psmouse *child = serio_get_drvdata(ptport); | |
433 | ||
434 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
435 | serio_interrupt(ptport, packet[1], 0); | |
436 | serio_interrupt(ptport, packet[4], 0); | |
437 | serio_interrupt(ptport, packet[5], 0); | |
438 | if (child->pktsize == 4) | |
439 | serio_interrupt(ptport, packet[2], 0); | |
440 | } else | |
441 | serio_interrupt(ptport, packet[1], 0); | |
442 | } | |
443 | ||
444 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
445 | { | |
446 | struct synaptics_data *priv = psmouse->private; | |
447 | struct psmouse *child = serio_get_drvdata(priv->pt_port); | |
448 | ||
449 | /* adjust the touchpad to child's choice of protocol */ | |
450 | if (child) { | |
451 | if (child->pktsize == 4) | |
452 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; | |
453 | else | |
454 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
455 | ||
456 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
457 | psmouse_warn(psmouse, | |
458 | "failed to switch guest protocol\n"); | |
459 | } | |
460 | } | |
461 | ||
462 | static void synaptics_pt_create(struct psmouse *psmouse) | |
463 | { | |
464 | struct serio *serio; | |
465 | ||
466 | serio = kzalloc(sizeof(struct serio), GFP_KERNEL); | |
467 | if (!serio) { | |
468 | psmouse_err(psmouse, | |
469 | "not enough memory for pass-through port\n"); | |
470 | return; | |
471 | } | |
472 | ||
473 | serio->id.type = SERIO_PS_PSTHRU; | |
474 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); | |
475 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); | |
476 | serio->write = synaptics_pt_write; | |
477 | serio->start = synaptics_pt_start; | |
478 | serio->stop = synaptics_pt_stop; | |
479 | serio->parent = psmouse->ps2dev.serio; | |
480 | ||
481 | psmouse->pt_activate = synaptics_pt_activate; | |
482 | ||
483 | psmouse_info(psmouse, "serio: %s port at %s\n", | |
484 | serio->name, psmouse->phys); | |
485 | serio_register_port(serio); | |
486 | } | |
487 | ||
488 | /***************************************************************************** | |
489 | * Functions to interpret the absolute mode packets | |
490 | ****************************************************************************/ | |
491 | ||
492 | static void synaptics_mt_state_set(struct synaptics_mt_state *state, int count, | |
493 | int sgm, int agm) | |
494 | { | |
495 | state->count = count; | |
496 | state->sgm = sgm; | |
497 | state->agm = agm; | |
498 | } | |
499 | ||
500 | static void synaptics_parse_agm(const unsigned char buf[], | |
501 | struct synaptics_data *priv, | |
502 | struct synaptics_hw_state *hw) | |
503 | { | |
504 | struct synaptics_hw_state *agm = &priv->agm; | |
505 | int agm_packet_type; | |
506 | ||
507 | agm_packet_type = (buf[5] & 0x30) >> 4; | |
508 | switch (agm_packet_type) { | |
509 | case 1: | |
510 | /* Gesture packet: (x, y, z) half resolution */ | |
511 | agm->w = hw->w; | |
512 | agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1; | |
513 | agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1; | |
514 | agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1; | |
515 | break; | |
516 | ||
517 | case 2: | |
518 | /* AGM-CONTACT packet: (count, sgm, agm) */ | |
519 | synaptics_mt_state_set(&agm->mt_state, buf[1], buf[2], buf[4]); | |
520 | break; | |
521 | ||
522 | default: | |
523 | break; | |
524 | } | |
525 | ||
526 | /* Record that at least one AGM has been received since last SGM */ | |
527 | priv->agm_pending = true; | |
528 | } | |
529 | ||
530 | static int synaptics_parse_hw_state(const unsigned char buf[], | |
531 | struct synaptics_data *priv, | |
532 | struct synaptics_hw_state *hw) | |
533 | { | |
534 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
535 | ||
536 | if (SYN_MODEL_NEWABS(priv->model_id)) { | |
537 | hw->w = (((buf[0] & 0x30) >> 2) | | |
538 | ((buf[0] & 0x04) >> 1) | | |
539 | ((buf[3] & 0x04) >> 2)); | |
540 | ||
541 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
542 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
543 | ||
544 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { | |
545 | /* | |
546 | * Clickpad's button is transmitted as middle button, | |
547 | * however, since it is primary button, we will report | |
548 | * it as BTN_LEFT. | |
549 | */ | |
550 | hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
551 | ||
552 | } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
553 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
554 | if (hw->w == 2) | |
555 | hw->scroll = (signed char)(buf[1]); | |
556 | } | |
557 | ||
558 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
559 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
560 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
561 | } | |
562 | ||
563 | if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || | |
564 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) && | |
565 | hw->w == 2) { | |
566 | synaptics_parse_agm(buf, priv, hw); | |
567 | return 1; | |
568 | } | |
569 | ||
570 | hw->x = (((buf[3] & 0x10) << 8) | | |
571 | ((buf[1] & 0x0f) << 8) | | |
572 | buf[4]); | |
573 | hw->y = (((buf[3] & 0x20) << 7) | | |
574 | ((buf[1] & 0xf0) << 4) | | |
575 | buf[5]); | |
576 | hw->z = buf[2]; | |
577 | ||
578 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && | |
579 | ((buf[0] ^ buf[3]) & 0x02)) { | |
580 | switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { | |
581 | default: | |
582 | /* | |
583 | * if nExtBtn is greater than 8 it should be | |
584 | * considered invalid and treated as 0 | |
585 | */ | |
586 | break; | |
587 | case 8: | |
588 | hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; | |
589 | hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; | |
590 | case 6: | |
591 | hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; | |
592 | hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; | |
593 | case 4: | |
594 | hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; | |
595 | hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; | |
596 | case 2: | |
597 | hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; | |
598 | hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; | |
599 | } | |
600 | } | |
601 | } else { | |
602 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
603 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
604 | ||
605 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
606 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
607 | ||
608 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
609 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
610 | } | |
611 | ||
612 | /* | |
613 | * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE | |
614 | * is used by some firmware to indicate a finger at the edge of | |
615 | * the touchpad whose precise position cannot be determined, so | |
616 | * convert these values to the maximum axis value. | |
617 | */ | |
618 | if (hw->x > X_MAX_POSITIVE) | |
619 | hw->x -= 1 << ABS_POS_BITS; | |
620 | else if (hw->x == X_MAX_POSITIVE) | |
621 | hw->x = XMAX; | |
622 | ||
623 | if (hw->y > Y_MAX_POSITIVE) | |
624 | hw->y -= 1 << ABS_POS_BITS; | |
625 | else if (hw->y == Y_MAX_POSITIVE) | |
626 | hw->y = YMAX; | |
627 | ||
628 | return 0; | |
629 | } | |
630 | ||
631 | static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot, | |
632 | bool active, int x, int y) | |
633 | { | |
634 | input_mt_slot(dev, slot); | |
635 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); | |
636 | if (active) { | |
637 | input_report_abs(dev, ABS_MT_POSITION_X, x); | |
638 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y)); | |
639 | } | |
640 | } | |
641 | ||
642 | static void synaptics_report_semi_mt_data(struct input_dev *dev, | |
643 | const struct synaptics_hw_state *a, | |
644 | const struct synaptics_hw_state *b, | |
645 | int num_fingers) | |
646 | { | |
647 | if (num_fingers >= 2) { | |
648 | synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x), | |
649 | min(a->y, b->y)); | |
650 | synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x), | |
651 | max(a->y, b->y)); | |
652 | } else if (num_fingers == 1) { | |
653 | synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y); | |
654 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
655 | } else { | |
656 | synaptics_report_semi_mt_slot(dev, 0, false, 0, 0); | |
657 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
658 | } | |
659 | } | |
660 | ||
661 | static void synaptics_report_buttons(struct psmouse *psmouse, | |
662 | const struct synaptics_hw_state *hw) | |
663 | { | |
664 | struct input_dev *dev = psmouse->dev; | |
665 | struct synaptics_data *priv = psmouse->private; | |
666 | int i; | |
667 | ||
668 | input_report_key(dev, BTN_LEFT, hw->left); | |
669 | input_report_key(dev, BTN_RIGHT, hw->right); | |
670 | ||
671 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
672 | input_report_key(dev, BTN_MIDDLE, hw->middle); | |
673 | ||
674 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
675 | input_report_key(dev, BTN_FORWARD, hw->up); | |
676 | input_report_key(dev, BTN_BACK, hw->down); | |
677 | } | |
678 | ||
679 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
680 | input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i)); | |
681 | } | |
682 | ||
683 | static void synaptics_report_slot(struct input_dev *dev, int slot, | |
684 | const struct synaptics_hw_state *hw) | |
685 | { | |
686 | input_mt_slot(dev, slot); | |
687 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, (hw != NULL)); | |
688 | if (!hw) | |
689 | return; | |
690 | ||
691 | input_report_abs(dev, ABS_MT_POSITION_X, hw->x); | |
692 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(hw->y)); | |
693 | input_report_abs(dev, ABS_MT_PRESSURE, hw->z); | |
694 | } | |
695 | ||
696 | static void synaptics_report_mt_data(struct psmouse *psmouse, | |
697 | struct synaptics_mt_state *mt_state, | |
698 | const struct synaptics_hw_state *sgm) | |
699 | { | |
700 | struct input_dev *dev = psmouse->dev; | |
701 | struct synaptics_data *priv = psmouse->private; | |
702 | struct synaptics_hw_state *agm = &priv->agm; | |
703 | struct synaptics_mt_state *old = &priv->mt_state; | |
704 | ||
705 | switch (mt_state->count) { | |
706 | case 0: | |
707 | synaptics_report_slot(dev, 0, NULL); | |
708 | synaptics_report_slot(dev, 1, NULL); | |
709 | break; | |
710 | case 1: | |
711 | if (mt_state->sgm == -1) { | |
712 | synaptics_report_slot(dev, 0, NULL); | |
713 | synaptics_report_slot(dev, 1, NULL); | |
714 | } else if (mt_state->sgm == 0) { | |
715 | synaptics_report_slot(dev, 0, sgm); | |
716 | synaptics_report_slot(dev, 1, NULL); | |
717 | } else { | |
718 | synaptics_report_slot(dev, 0, NULL); | |
719 | synaptics_report_slot(dev, 1, sgm); | |
720 | } | |
721 | break; | |
722 | default: | |
723 | /* | |
724 | * If the finger slot contained in SGM is valid, and either | |
725 | * hasn't changed, or is new, or the old SGM has now moved to | |
726 | * AGM, then report SGM in MTB slot 0. | |
727 | * Otherwise, empty MTB slot 0. | |
728 | */ | |
729 | if (mt_state->sgm != -1 && | |
730 | (mt_state->sgm == old->sgm || | |
731 | old->sgm == -1 || mt_state->agm == old->sgm)) | |
732 | synaptics_report_slot(dev, 0, sgm); | |
733 | else | |
734 | synaptics_report_slot(dev, 0, NULL); | |
735 | ||
736 | /* | |
737 | * If the finger slot contained in AGM is valid, and either | |
738 | * hasn't changed, or is new, then report AGM in MTB slot 1. | |
739 | * Otherwise, empty MTB slot 1. | |
740 | * | |
741 | * However, in the case where the AGM is new, make sure that | |
742 | * that it is either the same as the old SGM, or there was no | |
743 | * SGM. | |
744 | * | |
745 | * Otherwise, if the SGM was just 1, and the new AGM is 2, then | |
746 | * the new AGM will keep the old SGM's tracking ID, which can | |
747 | * cause apparent drumroll. This happens if in the following | |
748 | * valid finger sequence: | |
749 | * | |
750 | * Action SGM AGM (MTB slot:Contact) | |
751 | * 1. Touch contact 0 (0:0) | |
752 | * 2. Touch contact 1 (0:0, 1:1) | |
753 | * 3. Lift contact 0 (1:1) | |
754 | * 4. Touch contacts 2,3 (0:2, 1:3) | |
755 | * | |
756 | * In step 4, contact 3, in AGM must not be given the same | |
757 | * tracking ID as contact 1 had in step 3. To avoid this, | |
758 | * the first agm with contact 3 is dropped and slot 1 is | |
759 | * invalidated (tracking ID = -1). | |
760 | */ | |
761 | if (mt_state->agm != -1 && | |
762 | (mt_state->agm == old->agm || | |
763 | (old->agm == -1 && | |
764 | (old->sgm == -1 || mt_state->agm == old->sgm)))) | |
765 | synaptics_report_slot(dev, 1, agm); | |
766 | else | |
767 | synaptics_report_slot(dev, 1, NULL); | |
768 | break; | |
769 | } | |
770 | ||
771 | /* Don't use active slot count to generate BTN_TOOL events. */ | |
772 | input_mt_report_pointer_emulation(dev, false); | |
773 | ||
774 | /* Send the number of fingers reported by touchpad itself. */ | |
775 | input_mt_report_finger_count(dev, mt_state->count); | |
776 | ||
777 | synaptics_report_buttons(psmouse, sgm); | |
778 | ||
779 | input_sync(dev); | |
780 | } | |
781 | ||
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) | |
785 | { | |
786 | synaptics_mt_state_set(mt_state, 0, -1, -1); | |
787 | priv->mt_state_lost = false; | |
788 | } | |
789 | ||
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) | |
793 | { | |
794 | struct synaptics_hw_state *agm = &priv->agm; | |
795 | struct synaptics_mt_state *old = &priv->mt_state; | |
796 | ||
797 | /* | |
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. | |
801 | */ | |
802 | if (priv->agm_pending && agm->z == 0) { | |
803 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
804 | priv->mt_state_lost = false; | |
805 | return; | |
806 | } | |
807 | ||
808 | switch (old->count) { | |
809 | case 0: | |
810 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
811 | break; | |
812 | case 1: | |
813 | /* | |
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. | |
817 | * | |
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 | |
822 | * | |
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. | |
826 | * | |
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. | |
830 | * | |
831 | * (In both these cases, slot 0 will becomes empty, so SGM | |
832 | * contains slot 1 with the new finger) | |
833 | * | |
834 | * Else, if there was no previous SGM, it now contains slot 0. | |
835 | * | |
836 | * Otherwise, SGM still contains the same slot. | |
837 | */ | |
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); | |
843 | break; | |
844 | case 2: | |
845 | /* | |
846 | * If mt_state_lost, we don't know which finger SGM contains. | |
847 | * | |
848 | * So, report 1 finger, but with both slots empty. | |
849 | * We will use slot 1 on subsequent 1->1 | |
850 | */ | |
851 | if (priv->mt_state_lost) { | |
852 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
853 | break; | |
854 | } | |
855 | /* | |
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 | |
859 | * empty. | |
860 | */ | |
861 | synaptics_mt_state_set(mt_state, 1, old->agm, -1); | |
862 | break; | |
863 | case 3: | |
864 | /* | |
865 | * Since last AGM was not (0,0,0), we don't know which finger | |
866 | * is left. | |
867 | * | |
868 | * So, report 1 finger, but with both slots empty. | |
869 | * We will use slot 1 on subsequent 1->1 | |
870 | */ | |
871 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
872 | priv->mt_state_lost = true; | |
873 | break; | |
874 | case 4: | |
875 | case 5: | |
876 | /* mt_state was updated by AGM-CONTACT packet */ | |
877 | break; | |
878 | } | |
879 | } | |
880 | ||
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) | |
884 | { | |
885 | struct synaptics_mt_state *old = &priv->mt_state; | |
886 | ||
887 | switch (old->count) { | |
888 | case 0: | |
889 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
890 | break; | |
891 | case 1: | |
892 | /* | |
893 | * If previous SGM contained slot 1 or higher, SGM now contains | |
894 | * slot 0 (the newly touching finger) and AGM contains SGM's | |
895 | * previous slot. | |
896 | * | |
897 | * Otherwise, SGM still contains slot 0 and AGM now contains | |
898 | * slot 1. | |
899 | */ | |
900 | if (old->sgm >= 1) | |
901 | synaptics_mt_state_set(mt_state, 2, 0, old->sgm); | |
902 | else | |
903 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
904 | break; | |
905 | case 2: | |
906 | /* | |
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. | |
910 | */ | |
911 | if (priv->mt_state_lost) | |
912 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
913 | /* | |
914 | * Otherwise, use the same mt_state, since it either hasn't | |
915 | * changed, or was updated by a recently received AGM-CONTACT | |
916 | * packet. | |
917 | */ | |
918 | break; | |
919 | case 3: | |
920 | /* | |
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. | |
925 | * | |
926 | * So, report 2 fingers, but empty all slots. | |
927 | * We will guess slots [0,1] on subsequent 2->2. | |
928 | */ | |
929 | synaptics_mt_state_set(mt_state, 2, -1, -1); | |
930 | priv->mt_state_lost = true; | |
931 | break; | |
932 | case 4: | |
933 | case 5: | |
934 | /* mt_state was updated by AGM-CONTACT packet */ | |
935 | break; | |
936 | } | |
937 | } | |
938 | ||
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) | |
942 | { | |
943 | struct synaptics_mt_state *old = &priv->mt_state; | |
944 | ||
945 | switch (old->count) { | |
946 | case 0: | |
947 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
948 | break; | |
949 | case 1: | |
950 | /* | |
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. | |
954 | * | |
955 | * Otherwise, SGM now contains slot 0 and AGM contains slot 2. | |
956 | */ | |
957 | if (old->sgm >= 2) | |
958 | synaptics_mt_state_set(mt_state, 3, 0, old->sgm); | |
959 | else | |
960 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
961 | break; | |
962 | case 2: | |
963 | /* | |
964 | * If the AGM previously contained slot 3 or higher, then the | |
965 | * newly touching finger is in the lowest available slot. | |
966 | * | |
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. | |
970 | * | |
971 | * In all such cases, the SGM now contains slot 0, and the AGM | |
972 | * continues to contain the same slot as before. | |
973 | */ | |
974 | if (old->agm >= 3) { | |
975 | synaptics_mt_state_set(mt_state, 3, 0, old->agm); | |
976 | break; | |
977 | } | |
978 | ||
979 | /* | |
980 | * After some 3->1 and all 3->2 transitions, we lose track | |
981 | * of which slot is reported by SGM and AGM. | |
982 | * | |
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. | |
985 | * | |
986 | * To userspace, the resulting transition will look like: | |
987 | * 2:[0,1] -> 3:[-1,-1] -> 3:[0,2] | |
988 | */ | |
989 | if (priv->mt_state_lost) { | |
990 | synaptics_mt_state_set(mt_state, 3, -1, -1); | |
991 | break; | |
992 | } | |
993 | ||
994 | /* | |
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. | |
1001 | * | |
1002 | * To userspace, the resulting transition will look like: | |
1003 | * 2:[0,1] -> 3:[0,-1] -> 3:[0,2] | |
1004 | */ | |
1005 | synaptics_mt_state_set(mt_state, 3, 0, -1); | |
1006 | break; | |
1007 | case 3: | |
1008 | /* | |
1009 | * If, for whatever reason, the previous agm was invalid, | |
1010 | * Assume SGM now contains slot 0, AGM now contains slot 2. | |
1011 | */ | |
1012 | if (old->agm <= 2) | |
1013 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1014 | /* | |
1015 | * mt_state either hasn't changed, or was updated by a recently | |
1016 | * received AGM-CONTACT packet. | |
1017 | */ | |
1018 | break; | |
1019 | ||
1020 | case 4: | |
1021 | case 5: | |
1022 | /* mt_state was updated by AGM-CONTACT packet */ | |
1023 | break; | |
1024 | } | |
1025 | } | |
1026 | ||
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) | |
1030 | { | |
1031 | /* mt_state was updated correctly by AGM-CONTACT packet */ | |
1032 | priv->mt_state_lost = false; | |
1033 | } | |
1034 | ||
1035 | static void synaptics_image_sensor_process(struct psmouse *psmouse, | |
1036 | struct synaptics_hw_state *sgm) | |
1037 | { | |
1038 | struct synaptics_data *priv = psmouse->private; | |
1039 | struct synaptics_hw_state *agm = &priv->agm; | |
1040 | struct synaptics_mt_state mt_state; | |
1041 | ||
1042 | /* Initialize using current mt_state (as updated by last agm) */ | |
1043 | mt_state = agm->mt_state; | |
1044 | ||
1045 | /* | |
1046 | * Update mt_state using the new finger count and current mt_state. | |
1047 | */ | |
1048 | if (sgm->z == 0) | |
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); | |
1056 | else | |
1057 | synaptics_image_sensor_45f(priv, &mt_state); | |
1058 | ||
1059 | /* Send resulting input events to user space */ | |
1060 | synaptics_report_mt_data(psmouse, &mt_state, sgm); | |
1061 | ||
1062 | /* Store updated mt_state */ | |
1063 | priv->mt_state = agm->mt_state = mt_state; | |
1064 | priv->agm_pending = false; | |
1065 | } | |
1066 | ||
1067 | /* | |
1068 | * called for each full received packet from the touchpad | |
1069 | */ | |
1070 | static void synaptics_process_packet(struct psmouse *psmouse) | |
1071 | { | |
1072 | struct input_dev *dev = psmouse->dev; | |
1073 | struct synaptics_data *priv = psmouse->private; | |
1074 | struct synaptics_hw_state hw; | |
1075 | int num_fingers; | |
1076 | int finger_width; | |
1077 | ||
1078 | if (synaptics_parse_hw_state(psmouse->packet, priv, &hw)) | |
1079 | return; | |
1080 | ||
1081 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { | |
1082 | synaptics_image_sensor_process(psmouse, &hw); | |
1083 | return; | |
1084 | } | |
1085 | ||
1086 | if (hw.scroll) { | |
1087 | priv->scroll += hw.scroll; | |
1088 | ||
1089 | while (priv->scroll >= 4) { | |
1090 | input_report_key(dev, BTN_BACK, !hw.down); | |
1091 | input_sync(dev); | |
1092 | input_report_key(dev, BTN_BACK, hw.down); | |
1093 | input_sync(dev); | |
1094 | priv->scroll -= 4; | |
1095 | } | |
1096 | while (priv->scroll <= -4) { | |
1097 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
1098 | input_sync(dev); | |
1099 | input_report_key(dev, BTN_FORWARD, hw.up); | |
1100 | input_sync(dev); | |
1101 | priv->scroll += 4; | |
1102 | } | |
1103 | return; | |
1104 | } | |
1105 | ||
1106 | if (hw.z > 0 && hw.x > 1) { | |
1107 | num_fingers = 1; | |
1108 | finger_width = 5; | |
1109 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
1110 | switch (hw.w) { | |
1111 | case 0 ... 1: | |
1112 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
1113 | num_fingers = hw.w + 2; | |
1114 | break; | |
1115 | case 2: | |
1116 | if (SYN_MODEL_PEN(priv->model_id)) | |
1117 | ; /* Nothing, treat a pen as a single finger */ | |
1118 | break; | |
1119 | case 4 ... 15: | |
1120 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
1121 | finger_width = hw.w; | |
1122 | break; | |
1123 | } | |
1124 | } | |
1125 | } else { | |
1126 | num_fingers = 0; | |
1127 | finger_width = 0; | |
1128 | } | |
1129 | ||
1130 | if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) | |
1131 | synaptics_report_semi_mt_data(dev, &hw, &priv->agm, | |
1132 | num_fingers); | |
1133 | ||
1134 | /* Post events | |
1135 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
1136 | * absolute -> relative conversion | |
1137 | */ | |
1138 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
1139 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
1140 | ||
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)); | |
1144 | } | |
1145 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
1146 | ||
1147 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
1148 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); | |
1149 | ||
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); | |
1154 | } | |
1155 | ||
1156 | synaptics_report_buttons(psmouse, &hw); | |
1157 | ||
1158 | input_sync(dev); | |
1159 | } | |
1160 | ||
1161 | static int synaptics_validate_byte(struct psmouse *psmouse, | |
1162 | int idx, unsigned char pkt_type) | |
1163 | { | |
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; | |
1170 | ||
1171 | if (idx < 0 || idx > 4) | |
1172 | return 0; | |
1173 | ||
1174 | switch (pkt_type) { | |
1175 | ||
1176 | case SYN_NEWABS: | |
1177 | case SYN_NEWABS_RELAXED: | |
1178 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
1179 | ||
1180 | case SYN_NEWABS_STRICT: | |
1181 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
1182 | ||
1183 | case SYN_OLDABS: | |
1184 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
1185 | ||
1186 | default: | |
1187 | psmouse_err(psmouse, "unknown packet type %d\n", pkt_type); | |
1188 | return 0; | |
1189 | } | |
1190 | } | |
1191 | ||
1192 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) | |
1193 | { | |
1194 | int i; | |
1195 | ||
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; | |
1200 | } | |
1201 | ||
1202 | return SYN_NEWABS_STRICT; | |
1203 | } | |
1204 | ||
1205 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) | |
1206 | { | |
1207 | struct synaptics_data *priv = psmouse->private; | |
1208 | ||
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); | |
1212 | ||
1213 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && | |
1214 | synaptics_is_pt_packet(psmouse->packet)) { | |
1215 | if (priv->pt_port) | |
1216 | synaptics_pass_pt_packet(priv->pt_port, psmouse->packet); | |
1217 | } else | |
1218 | synaptics_process_packet(psmouse); | |
1219 | ||
1220 | return PSMOUSE_FULL_PACKET; | |
1221 | } | |
1222 | ||
1223 | return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ? | |
1224 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; | |
1225 | } | |
1226 | ||
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, | |
1232 | int y_code) | |
1233 | { | |
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; | |
1240 | ||
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); | |
1245 | } | |
1246 | ||
1247 | static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) | |
1248 | { | |
1249 | int i; | |
1250 | ||
1251 | /* Things that apply to both modes */ | |
1252 | __set_bit(INPUT_PROP_POINTER, dev->propbit); | |
1253 | __set_bit(EV_KEY, dev->evbit); | |
1254 | __set_bit(BTN_LEFT, dev->keybit); | |
1255 | __set_bit(BTN_RIGHT, dev->keybit); | |
1256 | ||
1257 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
1258 | __set_bit(BTN_MIDDLE, dev->keybit); | |
1259 | ||
1260 | if (!priv->absolute_mode) { | |
1261 | /* Relative mode */ | |
1262 | __set_bit(EV_REL, dev->evbit); | |
1263 | __set_bit(REL_X, dev->relbit); | |
1264 | __set_bit(REL_Y, dev->relbit); | |
1265 | return; | |
1266 | } | |
1267 | ||
1268 | /* Absolute mode */ | |
1269 | __set_bit(EV_ABS, dev->evbit); | |
1270 | set_abs_position_params(dev, priv, ABS_X, ABS_Y); | |
1271 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); | |
1272 | ||
1273 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { | |
1274 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, | |
1275 | ABS_MT_POSITION_Y); | |
1276 | /* Image sensors can report per-contact pressure */ | |
1277 | input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
1278 | input_mt_init_slots(dev, 2, INPUT_MT_POINTER); | |
1279 | ||
1280 | /* Image sensors can signal 4 and 5 finger clicks */ | |
1281 | __set_bit(BTN_TOOL_QUADTAP, dev->keybit); | |
1282 | __set_bit(BTN_TOOL_QUINTTAP, dev->keybit); | |
1283 | } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) { | |
1284 | /* Non-image sensors with AGM use semi-mt */ | |
1285 | __set_bit(INPUT_PROP_SEMI_MT, dev->propbit); | |
1286 | input_mt_init_slots(dev, 2, 0); | |
1287 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, | |
1288 | ABS_MT_POSITION_Y); | |
1289 | } | |
1290 | ||
1291 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
1292 | input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0); | |
1293 | ||
1294 | __set_bit(BTN_TOUCH, dev->keybit); | |
1295 | __set_bit(BTN_TOOL_FINGER, dev->keybit); | |
1296 | ||
1297 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { | |
1298 | __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); | |
1299 | __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); | |
1300 | } | |
1301 | ||
1302 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || | |
1303 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
1304 | __set_bit(BTN_FORWARD, dev->keybit); | |
1305 | __set_bit(BTN_BACK, dev->keybit); | |
1306 | } | |
1307 | ||
1308 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
1309 | __set_bit(BTN_0 + i, dev->keybit); | |
1310 | ||
1311 | __clear_bit(EV_REL, dev->evbit); | |
1312 | __clear_bit(REL_X, dev->relbit); | |
1313 | __clear_bit(REL_Y, dev->relbit); | |
1314 | ||
1315 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { | |
1316 | __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); | |
1317 | /* Clickpads report only left button */ | |
1318 | __clear_bit(BTN_RIGHT, dev->keybit); | |
1319 | __clear_bit(BTN_MIDDLE, dev->keybit); | |
1320 | } | |
1321 | } | |
1322 | ||
1323 | static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse, | |
1324 | void *data, char *buf) | |
1325 | { | |
1326 | struct synaptics_data *priv = psmouse->private; | |
1327 | ||
1328 | return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0'); | |
1329 | } | |
1330 | ||
1331 | static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse, | |
1332 | void *data, const char *buf, | |
1333 | size_t len) | |
1334 | { | |
1335 | struct synaptics_data *priv = psmouse->private; | |
1336 | unsigned int value; | |
1337 | int err; | |
1338 | ||
1339 | err = kstrtouint(buf, 10, &value); | |
1340 | if (err) | |
1341 | return err; | |
1342 | ||
1343 | if (value > 1) | |
1344 | return -EINVAL; | |
1345 | ||
1346 | if (value == priv->disable_gesture) | |
1347 | return len; | |
1348 | ||
1349 | priv->disable_gesture = value; | |
1350 | if (value) | |
1351 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
1352 | else | |
1353 | priv->mode &= ~SYN_BIT_DISABLE_GESTURE; | |
1354 | ||
1355 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
1356 | return -EIO; | |
1357 | ||
1358 | return len; | |
1359 | } | |
1360 | ||
1361 | PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL, | |
1362 | synaptics_show_disable_gesture, | |
1363 | synaptics_set_disable_gesture); | |
1364 | ||
1365 | static void synaptics_disconnect(struct psmouse *psmouse) | |
1366 | { | |
1367 | struct synaptics_data *priv = psmouse->private; | |
1368 | ||
1369 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1370 | device_remove_file(&psmouse->ps2dev.serio->dev, | |
1371 | &psmouse_attr_disable_gesture.dattr); | |
1372 | ||
1373 | synaptics_reset(psmouse); | |
1374 | kfree(priv); | |
1375 | psmouse->private = NULL; | |
1376 | } | |
1377 | ||
1378 | static int synaptics_reconnect(struct psmouse *psmouse) | |
1379 | { | |
1380 | struct synaptics_data *priv = psmouse->private; | |
1381 | struct synaptics_data old_priv = *priv; | |
1382 | int retry = 0; | |
1383 | int error; | |
1384 | ||
1385 | do { | |
1386 | psmouse_reset(psmouse); | |
1387 | if (retry) { | |
1388 | /* | |
1389 | * On some boxes, right after resuming, the touchpad | |
1390 | * needs some time to finish initializing (I assume | |
1391 | * it needs time to calibrate) and start responding | |
1392 | * to Synaptics-specific queries, so let's wait a | |
1393 | * bit. | |
1394 | */ | |
1395 | ssleep(1); | |
1396 | } | |
1397 | error = synaptics_detect(psmouse, 0); | |
1398 | } while (error && ++retry < 3); | |
1399 | ||
1400 | if (error) | |
1401 | return -1; | |
1402 | ||
1403 | if (retry > 1) | |
1404 | psmouse_dbg(psmouse, "reconnected after %d tries\n", retry); | |
1405 | ||
1406 | if (synaptics_query_hardware(psmouse)) { | |
1407 | psmouse_err(psmouse, "Unable to query device.\n"); | |
1408 | return -1; | |
1409 | } | |
1410 | ||
1411 | if (synaptics_set_mode(psmouse)) { | |
1412 | psmouse_err(psmouse, "Unable to initialize device.\n"); | |
1413 | return -1; | |
1414 | } | |
1415 | ||
1416 | if (old_priv.identity != priv->identity || | |
1417 | old_priv.model_id != priv->model_id || | |
1418 | old_priv.capabilities != priv->capabilities || | |
1419 | old_priv.ext_cap != priv->ext_cap) { | |
1420 | psmouse_err(psmouse, | |
1421 | "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n", | |
1422 | old_priv.identity, priv->identity, | |
1423 | old_priv.model_id, priv->model_id, | |
1424 | old_priv.capabilities, priv->capabilities, | |
1425 | old_priv.ext_cap, priv->ext_cap); | |
1426 | return -1; | |
1427 | } | |
1428 | ||
1429 | return 0; | |
1430 | } | |
1431 | ||
1432 | static bool impaired_toshiba_kbc; | |
1433 | ||
1434 | static const struct dmi_system_id __initconst toshiba_dmi_table[] = { | |
1435 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) | |
1436 | { | |
1437 | /* Toshiba Satellite */ | |
1438 | .matches = { | |
1439 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1440 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), | |
1441 | }, | |
1442 | }, | |
1443 | { | |
1444 | /* Toshiba Dynabook */ | |
1445 | .matches = { | |
1446 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1447 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), | |
1448 | }, | |
1449 | }, | |
1450 | { | |
1451 | /* Toshiba Portege M300 */ | |
1452 | .matches = { | |
1453 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1454 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), | |
1455 | }, | |
1456 | ||
1457 | }, | |
1458 | { | |
1459 | /* Toshiba Portege M300 */ | |
1460 | .matches = { | |
1461 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1462 | DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), | |
1463 | DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), | |
1464 | }, | |
1465 | ||
1466 | }, | |
1467 | #endif | |
1468 | { } | |
1469 | }; | |
1470 | ||
1471 | static bool broken_olpc_ec; | |
1472 | ||
1473 | static const struct dmi_system_id __initconst olpc_dmi_table[] = { | |
1474 | #if defined(CONFIG_DMI) && defined(CONFIG_OLPC) | |
1475 | { | |
1476 | /* OLPC XO-1 or XO-1.5 */ | |
1477 | .matches = { | |
1478 | DMI_MATCH(DMI_SYS_VENDOR, "OLPC"), | |
1479 | DMI_MATCH(DMI_PRODUCT_NAME, "XO"), | |
1480 | }, | |
1481 | }, | |
1482 | #endif | |
1483 | { } | |
1484 | }; | |
1485 | ||
1486 | void __init synaptics_module_init(void) | |
1487 | { | |
1488 | impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); | |
1489 | broken_olpc_ec = dmi_check_system(olpc_dmi_table); | |
1490 | } | |
1491 | ||
1492 | static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) | |
1493 | { | |
1494 | struct synaptics_data *priv; | |
1495 | int err = -1; | |
1496 | ||
1497 | /* | |
1498 | * The OLPC XO has issues with Synaptics' absolute mode; the constant | |
1499 | * packet spew overloads the EC such that key presses on the keyboard | |
1500 | * are missed. Given that, don't even attempt to use Absolute mode. | |
1501 | * Relative mode seems to work just fine. | |
1502 | */ | |
1503 | if (absolute_mode && broken_olpc_ec) { | |
1504 | psmouse_info(psmouse, | |
1505 | "OLPC XO detected, not enabling Synaptics protocol.\n"); | |
1506 | return -ENODEV; | |
1507 | } | |
1508 | ||
1509 | psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); | |
1510 | if (!priv) | |
1511 | return -ENOMEM; | |
1512 | ||
1513 | psmouse_reset(psmouse); | |
1514 | ||
1515 | if (synaptics_query_hardware(psmouse)) { | |
1516 | psmouse_err(psmouse, "Unable to query device.\n"); | |
1517 | goto init_fail; | |
1518 | } | |
1519 | ||
1520 | priv->absolute_mode = absolute_mode; | |
1521 | if (SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1522 | priv->disable_gesture = true; | |
1523 | ||
1524 | if (synaptics_set_mode(psmouse)) { | |
1525 | psmouse_err(psmouse, "Unable to initialize device.\n"); | |
1526 | goto init_fail; | |
1527 | } | |
1528 | ||
1529 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; | |
1530 | ||
1531 | psmouse_info(psmouse, | |
1532 | "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n", | |
1533 | SYN_ID_MODEL(priv->identity), | |
1534 | SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), | |
1535 | priv->model_id, | |
1536 | priv->capabilities, priv->ext_cap, priv->ext_cap_0c, | |
1537 | priv->board_id, priv->firmware_id); | |
1538 | ||
1539 | set_input_params(psmouse->dev, priv); | |
1540 | ||
1541 | /* | |
1542 | * Encode touchpad model so that it can be used to set | |
1543 | * input device->id.version and be visible to userspace. | |
1544 | * Because version is __u16 we have to drop something. | |
1545 | * Hardware info bits seem to be good candidates as they | |
1546 | * are documented to be for Synaptics corp. internal use. | |
1547 | */ | |
1548 | psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | | |
1549 | (priv->model_id & 0x000000ff); | |
1550 | ||
1551 | if (absolute_mode) { | |
1552 | psmouse->protocol_handler = synaptics_process_byte; | |
1553 | psmouse->pktsize = 6; | |
1554 | } else { | |
1555 | /* Relative mode follows standard PS/2 mouse protocol */ | |
1556 | psmouse->protocol_handler = psmouse_process_byte; | |
1557 | psmouse->pktsize = 3; | |
1558 | } | |
1559 | ||
1560 | psmouse->set_rate = synaptics_set_rate; | |
1561 | psmouse->disconnect = synaptics_disconnect; | |
1562 | psmouse->reconnect = synaptics_reconnect; | |
1563 | psmouse->cleanup = synaptics_reset; | |
1564 | /* Synaptics can usually stay in sync without extra help */ | |
1565 | psmouse->resync_time = 0; | |
1566 | ||
1567 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
1568 | synaptics_pt_create(psmouse); | |
1569 | ||
1570 | /* | |
1571 | * Toshiba's KBC seems to have trouble handling data from | |
1572 | * Synaptics at full rate. Switch to a lower rate (roughly | |
1573 | * the same rate as a standard PS/2 mouse). | |
1574 | */ | |
1575 | if (psmouse->rate >= 80 && impaired_toshiba_kbc) { | |
1576 | psmouse_info(psmouse, | |
1577 | "Toshiba %s detected, limiting rate to 40pps.\n", | |
1578 | dmi_get_system_info(DMI_PRODUCT_NAME)); | |
1579 | psmouse->rate = 40; | |
1580 | } | |
1581 | ||
1582 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) { | |
1583 | err = device_create_file(&psmouse->ps2dev.serio->dev, | |
1584 | &psmouse_attr_disable_gesture.dattr); | |
1585 | if (err) { | |
1586 | psmouse_err(psmouse, | |
1587 | "Failed to create disable_gesture attribute (%d)", | |
1588 | err); | |
1589 | goto init_fail; | |
1590 | } | |
1591 | } | |
1592 | ||
1593 | return 0; | |
1594 | ||
1595 | init_fail: | |
1596 | kfree(priv); | |
1597 | return err; | |
1598 | } | |
1599 | ||
1600 | int synaptics_init(struct psmouse *psmouse) | |
1601 | { | |
1602 | return __synaptics_init(psmouse, true); | |
1603 | } | |
1604 | ||
1605 | int synaptics_init_relative(struct psmouse *psmouse) | |
1606 | { | |
1607 | return __synaptics_init(psmouse, false); | |
1608 | } | |
1609 | ||
1610 | bool synaptics_supported(void) | |
1611 | { | |
1612 | return true; | |
1613 | } | |
1614 | ||
1615 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ | |
1616 | ||
1617 | void __init synaptics_module_init(void) | |
1618 | { | |
1619 | } | |
1620 | ||
1621 | int synaptics_init(struct psmouse *psmouse) | |
1622 | { | |
1623 | return -ENOSYS; | |
1624 | } | |
1625 | ||
1626 | bool synaptics_supported(void) | |
1627 | { | |
1628 | return false; | |
1629 | } | |
1630 | ||
1631 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ |