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1da177e4 LT |
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> | |
8521478f | 27 | #include <linux/delay.h> |
7705d548 | 28 | #include <linux/dmi.h> |
fec6e525 | 29 | #include <linux/input/mt.h> |
1da177e4 LT |
30 | #include <linux/serio.h> |
31 | #include <linux/libps2.h> | |
5a0e3ad6 | 32 | #include <linux/slab.h> |
1da177e4 LT |
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. | |
83ba9ea8 DT |
40 | * Note that newer firmware allows querying device for maximum useable |
41 | * coordinates. | |
1da177e4 | 42 | */ |
c0394506 SF |
43 | #define XMIN 0 |
44 | #define XMAX 6143 | |
45 | #define YMIN 0 | |
46 | #define YMAX 6143 | |
1da177e4 LT |
47 | #define XMIN_NOMINAL 1472 |
48 | #define XMAX_NOMINAL 5472 | |
49 | #define YMIN_NOMINAL 1408 | |
50 | #define YMAX_NOMINAL 4448 | |
51 | ||
c0394506 SF |
52 | /* Size in bits of absolute position values reported by the hardware */ |
53 | #define ABS_POS_BITS 13 | |
54 | ||
55 | /* | |
824efd37 SF |
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. | |
c0394506 | 66 | */ |
824efd37 SF |
67 | #define X_MAX_POSITIVE 8176 |
68 | #define Y_MAX_POSITIVE 8176 | |
55e3d922 | 69 | |
1da177e4 | 70 | /***************************************************************************** |
55e3d922 | 71 | * Stuff we need even when we do not want native Synaptics support |
1da177e4 LT |
72 | ****************************************************************************/ |
73 | ||
74 | /* | |
55e3d922 | 75 | * Set the synaptics touchpad mode byte by special commands |
1da177e4 | 76 | */ |
55e3d922 | 77 | static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode) |
1da177e4 | 78 | { |
55e3d922 AS |
79 | unsigned char param[1]; |
80 | ||
81 | if (psmouse_sliced_command(psmouse, mode)) | |
1da177e4 | 82 | return -1; |
55e3d922 AS |
83 | param[0] = SYN_PS_SET_MODE2; |
84 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE)) | |
1da177e4 LT |
85 | return -1; |
86 | return 0; | |
87 | } | |
88 | ||
b7802c5c | 89 | int synaptics_detect(struct psmouse *psmouse, bool set_properties) |
55e3d922 AS |
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 | |
43e19888 HG |
120 | /* This list has been kindly provided by Synaptics. */ |
121 | static const char * const topbuttonpad_pnp_ids[] = { | |
122 | "LEN0017", | |
123 | "LEN0018", | |
124 | "LEN0019", | |
125 | "LEN0023", | |
126 | "LEN002A", | |
127 | "LEN002B", | |
128 | "LEN002C", | |
129 | "LEN002D", | |
130 | "LEN002E", | |
131 | "LEN0033", /* Helix */ | |
132 | "LEN0034", /* T431s, T540, X1 Carbon 2nd */ | |
133 | "LEN0035", /* X240 */ | |
134 | "LEN0036", /* T440 */ | |
135 | "LEN0037", | |
136 | "LEN0038", | |
137 | "LEN0041", | |
138 | "LEN0042", /* Yoga */ | |
139 | "LEN0045", | |
140 | "LEN0046", | |
141 | "LEN0047", | |
142 | "LEN0048", | |
143 | "LEN0049", | |
144 | "LEN2000", | |
145 | "LEN2001", | |
146 | "LEN2002", | |
147 | "LEN2003", | |
148 | "LEN2004", /* L440 */ | |
149 | "LEN2005", | |
150 | "LEN2006", | |
151 | "LEN2007", | |
152 | "LEN2008", | |
153 | "LEN2009", | |
154 | "LEN200A", | |
155 | "LEN200B", | |
156 | NULL | |
157 | }; | |
55e3d922 AS |
158 | |
159 | /***************************************************************************** | |
160 | * Synaptics communications functions | |
161 | ****************************************************************************/ | |
162 | ||
1a49a0a0 JD |
163 | /* |
164 | * Synaptics touchpads report the y coordinate from bottom to top, which is | |
165 | * opposite from what userspace expects. | |
166 | * This function is used to invert y before reporting. | |
167 | */ | |
168 | static int synaptics_invert_y(int y) | |
169 | { | |
170 | return YMAX_NOMINAL + YMIN_NOMINAL - y; | |
171 | } | |
172 | ||
1da177e4 | 173 | /* |
55e3d922 | 174 | * Send a command to the synpatics touchpad by special commands |
1da177e4 | 175 | */ |
55e3d922 | 176 | static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) |
1da177e4 | 177 | { |
55e3d922 | 178 | if (psmouse_sliced_command(psmouse, c)) |
1da177e4 | 179 | return -1; |
55e3d922 | 180 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) |
1da177e4 LT |
181 | return -1; |
182 | return 0; | |
183 | } | |
184 | ||
185 | /* | |
186 | * Read the model-id bytes from the touchpad | |
187 | * see also SYN_MODEL_* macros | |
188 | */ | |
189 | static int synaptics_model_id(struct psmouse *psmouse) | |
190 | { | |
191 | struct synaptics_data *priv = psmouse->private; | |
192 | unsigned char mi[3]; | |
193 | ||
194 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) | |
195 | return -1; | |
196 | priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; | |
197 | return 0; | |
198 | } | |
199 | ||
c6bd9d46 DK |
200 | /* |
201 | * Read the board id from the touchpad | |
202 | * The board id is encoded in the "QUERY MODES" response | |
203 | */ | |
204 | static int synaptics_board_id(struct psmouse *psmouse) | |
205 | { | |
206 | struct synaptics_data *priv = psmouse->private; | |
207 | unsigned char bid[3]; | |
208 | ||
209 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid)) | |
210 | return -1; | |
211 | priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; | |
212 | return 0; | |
213 | } | |
214 | ||
215 | /* | |
216 | * Read the firmware id from the touchpad | |
217 | */ | |
218 | static int synaptics_firmware_id(struct psmouse *psmouse) | |
219 | { | |
220 | struct synaptics_data *priv = psmouse->private; | |
221 | unsigned char fwid[3]; | |
222 | ||
223 | if (synaptics_send_cmd(psmouse, SYN_QUE_FIRMWARE_ID, fwid)) | |
224 | return -1; | |
225 | priv->firmware_id = (fwid[0] << 16) | (fwid[1] << 8) | fwid[2]; | |
226 | return 0; | |
227 | } | |
228 | ||
1da177e4 LT |
229 | /* |
230 | * Read the capability-bits from the touchpad | |
231 | * see also the SYN_CAP_* macros | |
232 | */ | |
233 | static int synaptics_capability(struct psmouse *psmouse) | |
234 | { | |
235 | struct synaptics_data *priv = psmouse->private; | |
236 | unsigned char cap[3]; | |
237 | ||
238 | if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) | |
239 | return -1; | |
240 | priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
5f57d67d TI |
241 | priv->ext_cap = priv->ext_cap_0c = 0; |
242 | ||
3619b8fe DT |
243 | /* |
244 | * Older firmwares had submodel ID fixed to 0x47 | |
245 | */ | |
246 | if (SYN_ID_FULL(priv->identity) < 0x705 && | |
247 | SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) { | |
1da177e4 | 248 | return -1; |
3619b8fe | 249 | } |
1da177e4 LT |
250 | |
251 | /* | |
252 | * Unless capExtended is set the rest of the flags should be ignored | |
253 | */ | |
254 | if (!SYN_CAP_EXTENDED(priv->capabilities)) | |
255 | priv->capabilities = 0; | |
256 | ||
257 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { | |
258 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { | |
b5d21704 DT |
259 | psmouse_warn(psmouse, |
260 | "device claims to have extended capabilities, but I'm not able to read them.\n"); | |
1da177e4 LT |
261 | } else { |
262 | priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
263 | ||
264 | /* | |
265 | * if nExtBtn is greater than 8 it should be considered | |
266 | * invalid and treated as 0 | |
267 | */ | |
268 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) | |
269 | priv->ext_cap &= 0xff0fff; | |
270 | } | |
271 | } | |
5f57d67d TI |
272 | |
273 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) { | |
274 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) { | |
b5d21704 DT |
275 | psmouse_warn(psmouse, |
276 | "device claims to have extended capability 0x0c, but I'm not able to read it.\n"); | |
5f57d67d TI |
277 | } else { |
278 | priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
279 | } | |
280 | } | |
281 | ||
1da177e4 LT |
282 | return 0; |
283 | } | |
284 | ||
285 | /* | |
286 | * Identify Touchpad | |
287 | * See also the SYN_ID_* macros | |
288 | */ | |
289 | static int synaptics_identify(struct psmouse *psmouse) | |
290 | { | |
291 | struct synaptics_data *priv = psmouse->private; | |
292 | unsigned char id[3]; | |
293 | ||
294 | if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) | |
295 | return -1; | |
296 | priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; | |
297 | if (SYN_ID_IS_SYNAPTICS(priv->identity)) | |
298 | return 0; | |
299 | return -1; | |
300 | } | |
301 | ||
ec20a022 | 302 | /* |
83ba9ea8 | 303 | * Read touchpad resolution and maximum reported coordinates |
ec20a022 TS |
304 | * Resolution is left zero if touchpad does not support the query |
305 | */ | |
421e08c4 BT |
306 | |
307 | static const int *quirk_min_max; | |
308 | ||
ec20a022 TS |
309 | static int synaptics_resolution(struct psmouse *psmouse) |
310 | { | |
311 | struct synaptics_data *priv = psmouse->private; | |
a66413fb | 312 | unsigned char resp[3]; |
ec20a022 | 313 | |
421e08c4 BT |
314 | if (quirk_min_max) { |
315 | priv->x_min = quirk_min_max[0]; | |
316 | priv->x_max = quirk_min_max[1]; | |
317 | priv->y_min = quirk_min_max[2]; | |
318 | priv->y_max = quirk_min_max[3]; | |
319 | return 0; | |
320 | } | |
321 | ||
ec20a022 | 322 | if (SYN_ID_MAJOR(priv->identity) < 4) |
bbddd199 | 323 | return 0; |
ec20a022 | 324 | |
a66413fb DT |
325 | if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) { |
326 | if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) { | |
327 | priv->x_res = resp[0]; /* x resolution in units/mm */ | |
328 | priv->y_res = resp[2]; /* y resolution in units/mm */ | |
83ba9ea8 DT |
329 | } |
330 | } | |
ec20a022 | 331 | |
83ba9ea8 DT |
332 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && |
333 | SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { | |
a66413fb | 334 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) { |
b5d21704 DT |
335 | psmouse_warn(psmouse, |
336 | "device claims to have max coordinates query, but I'm not able to read it.\n"); | |
a66413fb DT |
337 | } else { |
338 | priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); | |
339 | priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
340 | } | |
341 | } | |
342 | ||
343 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 && | |
344 | SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) { | |
345 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) { | |
b5d21704 DT |
346 | psmouse_warn(psmouse, |
347 | "device claims to have min coordinates query, but I'm not able to read it.\n"); | |
83ba9ea8 | 348 | } else { |
a66413fb DT |
349 | priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); |
350 | priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
83ba9ea8 | 351 | } |
ec20a022 TS |
352 | } |
353 | ||
354 | return 0; | |
355 | } | |
356 | ||
1da177e4 LT |
357 | static int synaptics_query_hardware(struct psmouse *psmouse) |
358 | { | |
1da177e4 LT |
359 | if (synaptics_identify(psmouse)) |
360 | return -1; | |
361 | if (synaptics_model_id(psmouse)) | |
362 | return -1; | |
c6bd9d46 DK |
363 | if (synaptics_firmware_id(psmouse)) |
364 | return -1; | |
365 | if (synaptics_board_id(psmouse)) | |
366 | return -1; | |
1da177e4 LT |
367 | if (synaptics_capability(psmouse)) |
368 | return -1; | |
ec20a022 TS |
369 | if (synaptics_resolution(psmouse)) |
370 | return -1; | |
1da177e4 LT |
371 | |
372 | return 0; | |
373 | } | |
374 | ||
7968a5dd DD |
375 | static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse) |
376 | { | |
377 | static unsigned char param = 0xc8; | |
378 | struct synaptics_data *priv = psmouse->private; | |
379 | ||
899c612d BH |
380 | if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || |
381 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c))) | |
7968a5dd DD |
382 | return 0; |
383 | ||
384 | if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL)) | |
385 | return -1; | |
386 | ||
387 | if (ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE)) | |
388 | return -1; | |
389 | ||
390 | /* Advanced gesture mode also sends multi finger data */ | |
391 | priv->capabilities |= BIT(1); | |
392 | ||
393 | return 0; | |
394 | } | |
395 | ||
396 | static int synaptics_set_mode(struct psmouse *psmouse) | |
1da177e4 LT |
397 | { |
398 | struct synaptics_data *priv = psmouse->private; | |
399 | ||
7968a5dd DD |
400 | priv->mode = 0; |
401 | if (priv->absolute_mode) | |
402 | priv->mode |= SYN_BIT_ABSOLUTE_MODE; | |
403 | if (priv->disable_gesture) | |
1da177e4 | 404 | priv->mode |= SYN_BIT_DISABLE_GESTURE; |
7968a5dd DD |
405 | if (psmouse->rate >= 80) |
406 | priv->mode |= SYN_BIT_HIGH_RATE; | |
1da177e4 LT |
407 | if (SYN_CAP_EXTENDED(priv->capabilities)) |
408 | priv->mode |= SYN_BIT_W_MODE; | |
409 | ||
410 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
411 | return -1; | |
412 | ||
7968a5dd DD |
413 | if (priv->absolute_mode && |
414 | synaptics_set_advanced_gesture_mode(psmouse)) { | |
415 | psmouse_err(psmouse, "Advanced gesture mode init failed.\n"); | |
416 | return -1; | |
417 | } | |
418 | ||
1da177e4 LT |
419 | return 0; |
420 | } | |
421 | ||
422 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
423 | { | |
424 | struct synaptics_data *priv = psmouse->private; | |
425 | ||
426 | if (rate >= 80) { | |
427 | priv->mode |= SYN_BIT_HIGH_RATE; | |
428 | psmouse->rate = 80; | |
429 | } else { | |
430 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
431 | psmouse->rate = 40; | |
432 | } | |
433 | ||
434 | synaptics_mode_cmd(psmouse, priv->mode); | |
435 | } | |
436 | ||
437 | /***************************************************************************** | |
438 | * Synaptics pass-through PS/2 port support | |
439 | ****************************************************************************/ | |
440 | static int synaptics_pt_write(struct serio *serio, unsigned char c) | |
441 | { | |
442 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
443 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ | |
444 | ||
445 | if (psmouse_sliced_command(parent, c)) | |
446 | return -1; | |
447 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) | |
448 | return -1; | |
449 | return 0; | |
450 | } | |
451 | ||
a8b3c0f5 DT |
452 | static int synaptics_pt_start(struct serio *serio) |
453 | { | |
454 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
455 | struct synaptics_data *priv = parent->private; | |
456 | ||
457 | serio_pause_rx(parent->ps2dev.serio); | |
458 | priv->pt_port = serio; | |
459 | serio_continue_rx(parent->ps2dev.serio); | |
460 | ||
461 | return 0; | |
462 | } | |
463 | ||
464 | static void synaptics_pt_stop(struct serio *serio) | |
465 | { | |
466 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
467 | struct synaptics_data *priv = parent->private; | |
468 | ||
469 | serio_pause_rx(parent->ps2dev.serio); | |
470 | priv->pt_port = NULL; | |
471 | serio_continue_rx(parent->ps2dev.serio); | |
472 | } | |
473 | ||
474 | static int synaptics_is_pt_packet(unsigned char *buf) | |
1da177e4 LT |
475 | { |
476 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
477 | } | |
478 | ||
479 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) | |
480 | { | |
481 | struct psmouse *child = serio_get_drvdata(ptport); | |
482 | ||
483 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
7d12e780 DH |
484 | serio_interrupt(ptport, packet[1], 0); |
485 | serio_interrupt(ptport, packet[4], 0); | |
486 | serio_interrupt(ptport, packet[5], 0); | |
33fdfa97 | 487 | if (child->pktsize == 4) |
7d12e780 | 488 | serio_interrupt(ptport, packet[2], 0); |
1da177e4 | 489 | } else |
7d12e780 | 490 | serio_interrupt(ptport, packet[1], 0); |
1da177e4 LT |
491 | } |
492 | ||
493 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
494 | { | |
1da177e4 | 495 | struct synaptics_data *priv = psmouse->private; |
a8b3c0f5 | 496 | struct psmouse *child = serio_get_drvdata(priv->pt_port); |
1da177e4 LT |
497 | |
498 | /* adjust the touchpad to child's choice of protocol */ | |
499 | if (child) { | |
33fdfa97 | 500 | if (child->pktsize == 4) |
1da177e4 LT |
501 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
502 | else | |
503 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
504 | ||
505 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
b5d21704 DT |
506 | psmouse_warn(psmouse, |
507 | "failed to switch guest protocol\n"); | |
1da177e4 LT |
508 | } |
509 | } | |
510 | ||
511 | static void synaptics_pt_create(struct psmouse *psmouse) | |
512 | { | |
513 | struct serio *serio; | |
514 | ||
b39787a9 | 515 | serio = kzalloc(sizeof(struct serio), GFP_KERNEL); |
1da177e4 | 516 | if (!serio) { |
b5d21704 DT |
517 | psmouse_err(psmouse, |
518 | "not enough memory for pass-through port\n"); | |
1da177e4 LT |
519 | return; |
520 | } | |
521 | ||
1da177e4 LT |
522 | serio->id.type = SERIO_PS_PSTHRU; |
523 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); | |
524 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); | |
525 | serio->write = synaptics_pt_write; | |
a8b3c0f5 DT |
526 | serio->start = synaptics_pt_start; |
527 | serio->stop = synaptics_pt_stop; | |
1da177e4 LT |
528 | serio->parent = psmouse->ps2dev.serio; |
529 | ||
530 | psmouse->pt_activate = synaptics_pt_activate; | |
531 | ||
b5d21704 DT |
532 | psmouse_info(psmouse, "serio: %s port at %s\n", |
533 | serio->name, psmouse->phys); | |
1da177e4 LT |
534 | serio_register_port(serio); |
535 | } | |
536 | ||
537 | /***************************************************************************** | |
538 | * Functions to interpret the absolute mode packets | |
539 | ****************************************************************************/ | |
540 | ||
a6ca40c1 DK |
541 | static void synaptics_mt_state_set(struct synaptics_mt_state *state, int count, |
542 | int sgm, int agm) | |
543 | { | |
544 | state->count = count; | |
545 | state->sgm = sgm; | |
546 | state->agm = agm; | |
547 | } | |
548 | ||
7afdb842 | 549 | static void synaptics_parse_agm(const unsigned char buf[], |
a6ca40c1 DK |
550 | struct synaptics_data *priv, |
551 | struct synaptics_hw_state *hw) | |
7afdb842 DK |
552 | { |
553 | struct synaptics_hw_state *agm = &priv->agm; | |
a6ca40c1 DK |
554 | int agm_packet_type; |
555 | ||
556 | agm_packet_type = (buf[5] & 0x30) >> 4; | |
557 | switch (agm_packet_type) { | |
558 | case 1: | |
559 | /* Gesture packet: (x, y, z) half resolution */ | |
560 | agm->w = hw->w; | |
561 | agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1; | |
562 | agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1; | |
563 | agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1; | |
564 | break; | |
565 | ||
566 | case 2: | |
567 | /* AGM-CONTACT packet: (count, sgm, agm) */ | |
568 | synaptics_mt_state_set(&agm->mt_state, buf[1], buf[2], buf[4]); | |
569 | break; | |
570 | ||
571 | default: | |
572 | break; | |
573 | } | |
4dc772d2 DK |
574 | |
575 | /* Record that at least one AGM has been received since last SGM */ | |
576 | priv->agm_pending = true; | |
7afdb842 DK |
577 | } |
578 | ||
fec6e525 HR |
579 | static int synaptics_parse_hw_state(const unsigned char buf[], |
580 | struct synaptics_data *priv, | |
581 | struct synaptics_hw_state *hw) | |
1da177e4 LT |
582 | { |
583 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
584 | ||
585 | if (SYN_MODEL_NEWABS(priv->model_id)) { | |
1da177e4 LT |
586 | hw->w = (((buf[0] & 0x30) >> 2) | |
587 | ((buf[0] & 0x04) >> 1) | | |
588 | ((buf[3] & 0x04) >> 2)); | |
589 | ||
590 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
591 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
592 | ||
5f57d67d TI |
593 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { |
594 | /* | |
595 | * Clickpad's button is transmitted as middle button, | |
596 | * however, since it is primary button, we will report | |
597 | * it as BTN_LEFT. | |
598 | */ | |
599 | hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
600 | ||
601 | } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
1da177e4 LT |
602 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
603 | if (hw->w == 2) | |
604 | hw->scroll = (signed char)(buf[1]); | |
605 | } | |
606 | ||
607 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
608 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
609 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
610 | } | |
611 | ||
3cdfee9e DK |
612 | if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || |
613 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) && | |
614 | hw->w == 2) { | |
a6ca40c1 | 615 | synaptics_parse_agm(buf, priv, hw); |
28d5fd86 DK |
616 | return 1; |
617 | } | |
618 | ||
619 | hw->x = (((buf[3] & 0x10) << 8) | | |
620 | ((buf[1] & 0x0f) << 8) | | |
621 | buf[4]); | |
622 | hw->y = (((buf[3] & 0x20) << 7) | | |
623 | ((buf[1] & 0xf0) << 4) | | |
624 | buf[5]); | |
625 | hw->z = buf[2]; | |
626 | ||
1da177e4 LT |
627 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && |
628 | ((buf[0] ^ buf[3]) & 0x02)) { | |
629 | switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { | |
630 | default: | |
631 | /* | |
632 | * if nExtBtn is greater than 8 it should be | |
633 | * considered invalid and treated as 0 | |
634 | */ | |
635 | break; | |
636 | case 8: | |
637 | hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; | |
638 | hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; | |
639 | case 6: | |
640 | hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; | |
641 | hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; | |
642 | case 4: | |
643 | hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; | |
644 | hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; | |
645 | case 2: | |
646 | hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; | |
647 | hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; | |
648 | } | |
649 | } | |
650 | } else { | |
651 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
652 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
653 | ||
654 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
655 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
656 | ||
657 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
658 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
659 | } | |
fec6e525 | 660 | |
824efd37 SF |
661 | /* |
662 | * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE | |
663 | * is used by some firmware to indicate a finger at the edge of | |
664 | * the touchpad whose precise position cannot be determined, so | |
665 | * convert these values to the maximum axis value. | |
666 | */ | |
c0394506 SF |
667 | if (hw->x > X_MAX_POSITIVE) |
668 | hw->x -= 1 << ABS_POS_BITS; | |
824efd37 SF |
669 | else if (hw->x == X_MAX_POSITIVE) |
670 | hw->x = XMAX; | |
671 | ||
c0394506 SF |
672 | if (hw->y > Y_MAX_POSITIVE) |
673 | hw->y -= 1 << ABS_POS_BITS; | |
824efd37 SF |
674 | else if (hw->y == Y_MAX_POSITIVE) |
675 | hw->y = YMAX; | |
c0394506 | 676 | |
fec6e525 HR |
677 | return 0; |
678 | } | |
679 | ||
bea9f0ff DK |
680 | static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot, |
681 | bool active, int x, int y) | |
fec6e525 HR |
682 | { |
683 | input_mt_slot(dev, slot); | |
684 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); | |
685 | if (active) { | |
686 | input_report_abs(dev, ABS_MT_POSITION_X, x); | |
6de58dd6 | 687 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y)); |
fec6e525 HR |
688 | } |
689 | } | |
690 | ||
691 | static void synaptics_report_semi_mt_data(struct input_dev *dev, | |
692 | const struct synaptics_hw_state *a, | |
693 | const struct synaptics_hw_state *b, | |
694 | int num_fingers) | |
695 | { | |
696 | if (num_fingers >= 2) { | |
bea9f0ff DK |
697 | synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x), |
698 | min(a->y, b->y)); | |
699 | synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x), | |
700 | max(a->y, b->y)); | |
fec6e525 | 701 | } else if (num_fingers == 1) { |
bea9f0ff DK |
702 | synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y); |
703 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 704 | } else { |
bea9f0ff DK |
705 | synaptics_report_semi_mt_slot(dev, 0, false, 0, 0); |
706 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 707 | } |
1da177e4 LT |
708 | } |
709 | ||
3cdfee9e DK |
710 | static void synaptics_report_buttons(struct psmouse *psmouse, |
711 | const struct synaptics_hw_state *hw) | |
712 | { | |
713 | struct input_dev *dev = psmouse->dev; | |
714 | struct synaptics_data *priv = psmouse->private; | |
715 | int i; | |
716 | ||
717 | input_report_key(dev, BTN_LEFT, hw->left); | |
718 | input_report_key(dev, BTN_RIGHT, hw->right); | |
719 | ||
720 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
721 | input_report_key(dev, BTN_MIDDLE, hw->middle); | |
722 | ||
723 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
724 | input_report_key(dev, BTN_FORWARD, hw->up); | |
725 | input_report_key(dev, BTN_BACK, hw->down); | |
726 | } | |
727 | ||
728 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
729 | input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i)); | |
730 | } | |
731 | ||
732 | static void synaptics_report_slot(struct input_dev *dev, int slot, | |
733 | const struct synaptics_hw_state *hw) | |
734 | { | |
735 | input_mt_slot(dev, slot); | |
736 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, (hw != NULL)); | |
737 | if (!hw) | |
738 | return; | |
739 | ||
740 | input_report_abs(dev, ABS_MT_POSITION_X, hw->x); | |
741 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(hw->y)); | |
742 | input_report_abs(dev, ABS_MT_PRESSURE, hw->z); | |
743 | } | |
744 | ||
745 | static void synaptics_report_mt_data(struct psmouse *psmouse, | |
4dc772d2 | 746 | struct synaptics_mt_state *mt_state, |
3cdfee9e DK |
747 | const struct synaptics_hw_state *sgm) |
748 | { | |
749 | struct input_dev *dev = psmouse->dev; | |
750 | struct synaptics_data *priv = psmouse->private; | |
751 | struct synaptics_hw_state *agm = &priv->agm; | |
4dc772d2 | 752 | struct synaptics_mt_state *old = &priv->mt_state; |
3cdfee9e | 753 | |
4dc772d2 | 754 | switch (mt_state->count) { |
3cdfee9e DK |
755 | case 0: |
756 | synaptics_report_slot(dev, 0, NULL); | |
757 | synaptics_report_slot(dev, 1, NULL); | |
758 | break; | |
759 | case 1: | |
4dc772d2 DK |
760 | if (mt_state->sgm == -1) { |
761 | synaptics_report_slot(dev, 0, NULL); | |
762 | synaptics_report_slot(dev, 1, NULL); | |
763 | } else if (mt_state->sgm == 0) { | |
764 | synaptics_report_slot(dev, 0, sgm); | |
765 | synaptics_report_slot(dev, 1, NULL); | |
766 | } else { | |
767 | synaptics_report_slot(dev, 0, NULL); | |
768 | synaptics_report_slot(dev, 1, sgm); | |
769 | } | |
3cdfee9e | 770 | break; |
4dc772d2 DK |
771 | default: |
772 | /* | |
773 | * If the finger slot contained in SGM is valid, and either | |
48064bdc DK |
774 | * hasn't changed, or is new, or the old SGM has now moved to |
775 | * AGM, then report SGM in MTB slot 0. | |
4dc772d2 DK |
776 | * Otherwise, empty MTB slot 0. |
777 | */ | |
778 | if (mt_state->sgm != -1 && | |
48064bdc DK |
779 | (mt_state->sgm == old->sgm || |
780 | old->sgm == -1 || mt_state->agm == old->sgm)) | |
4dc772d2 DK |
781 | synaptics_report_slot(dev, 0, sgm); |
782 | else | |
783 | synaptics_report_slot(dev, 0, NULL); | |
784 | ||
785 | /* | |
786 | * If the finger slot contained in AGM is valid, and either | |
787 | * hasn't changed, or is new, then report AGM in MTB slot 1. | |
788 | * Otherwise, empty MTB slot 1. | |
48064bdc DK |
789 | * |
790 | * However, in the case where the AGM is new, make sure that | |
791 | * that it is either the same as the old SGM, or there was no | |
792 | * SGM. | |
793 | * | |
794 | * Otherwise, if the SGM was just 1, and the new AGM is 2, then | |
795 | * the new AGM will keep the old SGM's tracking ID, which can | |
796 | * cause apparent drumroll. This happens if in the following | |
797 | * valid finger sequence: | |
798 | * | |
799 | * Action SGM AGM (MTB slot:Contact) | |
800 | * 1. Touch contact 0 (0:0) | |
801 | * 2. Touch contact 1 (0:0, 1:1) | |
802 | * 3. Lift contact 0 (1:1) | |
803 | * 4. Touch contacts 2,3 (0:2, 1:3) | |
804 | * | |
805 | * In step 4, contact 3, in AGM must not be given the same | |
806 | * tracking ID as contact 1 had in step 3. To avoid this, | |
807 | * the first agm with contact 3 is dropped and slot 1 is | |
808 | * invalidated (tracking ID = -1). | |
4dc772d2 DK |
809 | */ |
810 | if (mt_state->agm != -1 && | |
48064bdc DK |
811 | (mt_state->agm == old->agm || |
812 | (old->agm == -1 && | |
813 | (old->sgm == -1 || mt_state->agm == old->sgm)))) | |
4dc772d2 DK |
814 | synaptics_report_slot(dev, 1, agm); |
815 | else | |
816 | synaptics_report_slot(dev, 1, NULL); | |
3cdfee9e DK |
817 | break; |
818 | } | |
819 | ||
820 | /* Don't use active slot count to generate BTN_TOOL events. */ | |
821 | input_mt_report_pointer_emulation(dev, false); | |
822 | ||
823 | /* Send the number of fingers reported by touchpad itself. */ | |
4dc772d2 | 824 | input_mt_report_finger_count(dev, mt_state->count); |
3cdfee9e DK |
825 | |
826 | synaptics_report_buttons(psmouse, sgm); | |
827 | ||
828 | input_sync(dev); | |
829 | } | |
830 | ||
4dc772d2 DK |
831 | /* Handle case where mt_state->count = 0 */ |
832 | static void synaptics_image_sensor_0f(struct synaptics_data *priv, | |
833 | struct synaptics_mt_state *mt_state) | |
834 | { | |
835 | synaptics_mt_state_set(mt_state, 0, -1, -1); | |
836 | priv->mt_state_lost = false; | |
837 | } | |
838 | ||
839 | /* Handle case where mt_state->count = 1 */ | |
840 | static void synaptics_image_sensor_1f(struct synaptics_data *priv, | |
841 | struct synaptics_mt_state *mt_state) | |
842 | { | |
843 | struct synaptics_hw_state *agm = &priv->agm; | |
844 | struct synaptics_mt_state *old = &priv->mt_state; | |
845 | ||
846 | /* | |
847 | * If the last AGM was (0,0,0), and there is only one finger left, | |
848 | * then we absolutely know that SGM contains slot 0, and all other | |
849 | * fingers have been removed. | |
850 | */ | |
851 | if (priv->agm_pending && agm->z == 0) { | |
852 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
853 | priv->mt_state_lost = false; | |
854 | return; | |
855 | } | |
856 | ||
857 | switch (old->count) { | |
858 | case 0: | |
859 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
860 | break; | |
861 | case 1: | |
862 | /* | |
863 | * If mt_state_lost, then the previous transition was 3->1, | |
864 | * and SGM now contains either slot 0 or 1, but we don't know | |
865 | * which. So, we just assume that the SGM now contains slot 1. | |
866 | * | |
867 | * If pending AGM and either: | |
868 | * (a) the previous SGM slot contains slot 0, or | |
869 | * (b) there was no SGM slot | |
870 | * then, the SGM now contains slot 1 | |
871 | * | |
872 | * Case (a) happens with very rapid "drum roll" gestures, where | |
873 | * slot 0 finger is lifted and a new slot 1 finger touches | |
874 | * within one reporting interval. | |
875 | * | |
876 | * Case (b) happens if initially two or more fingers tap | |
877 | * briefly, and all but one lift before the end of the first | |
878 | * reporting interval. | |
879 | * | |
880 | * (In both these cases, slot 0 will becomes empty, so SGM | |
881 | * contains slot 1 with the new finger) | |
882 | * | |
883 | * Else, if there was no previous SGM, it now contains slot 0. | |
884 | * | |
885 | * Otherwise, SGM still contains the same slot. | |
886 | */ | |
887 | if (priv->mt_state_lost || | |
888 | (priv->agm_pending && old->sgm <= 0)) | |
889 | synaptics_mt_state_set(mt_state, 1, 1, -1); | |
890 | else if (old->sgm == -1) | |
891 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
892 | break; | |
893 | case 2: | |
894 | /* | |
895 | * If mt_state_lost, we don't know which finger SGM contains. | |
896 | * | |
897 | * So, report 1 finger, but with both slots empty. | |
898 | * We will use slot 1 on subsequent 1->1 | |
899 | */ | |
900 | if (priv->mt_state_lost) { | |
901 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
902 | break; | |
903 | } | |
904 | /* | |
905 | * Since the last AGM was NOT (0,0,0), it was the finger in | |
906 | * slot 0 that has been removed. | |
907 | * So, SGM now contains previous AGM's slot, and AGM is now | |
908 | * empty. | |
909 | */ | |
910 | synaptics_mt_state_set(mt_state, 1, old->agm, -1); | |
911 | break; | |
912 | case 3: | |
913 | /* | |
914 | * Since last AGM was not (0,0,0), we don't know which finger | |
915 | * is left. | |
916 | * | |
917 | * So, report 1 finger, but with both slots empty. | |
918 | * We will use slot 1 on subsequent 1->1 | |
919 | */ | |
920 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
921 | priv->mt_state_lost = true; | |
922 | break; | |
6b4b49fe DK |
923 | case 4: |
924 | case 5: | |
925 | /* mt_state was updated by AGM-CONTACT packet */ | |
926 | break; | |
4dc772d2 DK |
927 | } |
928 | } | |
929 | ||
930 | /* Handle case where mt_state->count = 2 */ | |
931 | static void synaptics_image_sensor_2f(struct synaptics_data *priv, | |
932 | struct synaptics_mt_state *mt_state) | |
933 | { | |
934 | struct synaptics_mt_state *old = &priv->mt_state; | |
935 | ||
936 | switch (old->count) { | |
937 | case 0: | |
938 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
939 | break; | |
940 | case 1: | |
941 | /* | |
942 | * If previous SGM contained slot 1 or higher, SGM now contains | |
943 | * slot 0 (the newly touching finger) and AGM contains SGM's | |
944 | * previous slot. | |
945 | * | |
946 | * Otherwise, SGM still contains slot 0 and AGM now contains | |
947 | * slot 1. | |
948 | */ | |
949 | if (old->sgm >= 1) | |
950 | synaptics_mt_state_set(mt_state, 2, 0, old->sgm); | |
951 | else | |
952 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
953 | break; | |
954 | case 2: | |
955 | /* | |
956 | * If mt_state_lost, SGM now contains either finger 1 or 2, but | |
957 | * we don't know which. | |
958 | * So, we just assume that the SGM contains slot 0 and AGM 1. | |
959 | */ | |
960 | if (priv->mt_state_lost) | |
961 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
962 | /* | |
963 | * Otherwise, use the same mt_state, since it either hasn't | |
964 | * changed, or was updated by a recently received AGM-CONTACT | |
965 | * packet. | |
966 | */ | |
967 | break; | |
968 | case 3: | |
969 | /* | |
970 | * 3->2 transitions have two unsolvable problems: | |
971 | * 1) no indication is given which finger was removed | |
972 | * 2) no way to tell if agm packet was for finger 3 | |
973 | * before 3->2, or finger 2 after 3->2. | |
974 | * | |
975 | * So, report 2 fingers, but empty all slots. | |
976 | * We will guess slots [0,1] on subsequent 2->2. | |
977 | */ | |
978 | synaptics_mt_state_set(mt_state, 2, -1, -1); | |
979 | priv->mt_state_lost = true; | |
980 | break; | |
6b4b49fe DK |
981 | case 4: |
982 | case 5: | |
983 | /* mt_state was updated by AGM-CONTACT packet */ | |
984 | break; | |
4dc772d2 DK |
985 | } |
986 | } | |
987 | ||
988 | /* Handle case where mt_state->count = 3 */ | |
989 | static void synaptics_image_sensor_3f(struct synaptics_data *priv, | |
990 | struct synaptics_mt_state *mt_state) | |
991 | { | |
992 | struct synaptics_mt_state *old = &priv->mt_state; | |
993 | ||
994 | switch (old->count) { | |
995 | case 0: | |
996 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
997 | break; | |
998 | case 1: | |
999 | /* | |
1000 | * If previous SGM contained slot 2 or higher, SGM now contains | |
1001 | * slot 0 (one of the newly touching fingers) and AGM contains | |
1002 | * SGM's previous slot. | |
1003 | * | |
1004 | * Otherwise, SGM now contains slot 0 and AGM contains slot 2. | |
1005 | */ | |
1006 | if (old->sgm >= 2) | |
1007 | synaptics_mt_state_set(mt_state, 3, 0, old->sgm); | |
1008 | else | |
1009 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1010 | break; | |
1011 | case 2: | |
6b4b49fe DK |
1012 | /* |
1013 | * If the AGM previously contained slot 3 or higher, then the | |
1014 | * newly touching finger is in the lowest available slot. | |
1015 | * | |
1016 | * If SGM was previously 1 or higher, then the new SGM is | |
1017 | * now slot 0 (with a new finger), otherwise, the new finger | |
1018 | * is now in a hidden slot between 0 and AGM's slot. | |
1019 | * | |
1020 | * In all such cases, the SGM now contains slot 0, and the AGM | |
1021 | * continues to contain the same slot as before. | |
1022 | */ | |
1023 | if (old->agm >= 3) { | |
1024 | synaptics_mt_state_set(mt_state, 3, 0, old->agm); | |
1025 | break; | |
1026 | } | |
1027 | ||
4dc772d2 DK |
1028 | /* |
1029 | * After some 3->1 and all 3->2 transitions, we lose track | |
1030 | * of which slot is reported by SGM and AGM. | |
1031 | * | |
1032 | * For 2->3 in this state, report 3 fingers, but empty all | |
1033 | * slots, and we will guess (0,2) on a subsequent 0->3. | |
1034 | * | |
1035 | * To userspace, the resulting transition will look like: | |
1036 | * 2:[0,1] -> 3:[-1,-1] -> 3:[0,2] | |
1037 | */ | |
1038 | if (priv->mt_state_lost) { | |
1039 | synaptics_mt_state_set(mt_state, 3, -1, -1); | |
1040 | break; | |
1041 | } | |
1042 | ||
1043 | /* | |
1044 | * If the (SGM,AGM) really previously contained slots (0, 1), | |
1045 | * then we cannot know what slot was just reported by the AGM, | |
1046 | * because the 2->3 transition can occur either before or after | |
1047 | * the AGM packet. Thus, this most recent AGM could contain | |
1048 | * either the same old slot 1 or the new slot 2. | |
1049 | * Subsequent AGMs will be reporting slot 2. | |
1050 | * | |
1051 | * To userspace, the resulting transition will look like: | |
1052 | * 2:[0,1] -> 3:[0,-1] -> 3:[0,2] | |
1053 | */ | |
1054 | synaptics_mt_state_set(mt_state, 3, 0, -1); | |
1055 | break; | |
1056 | case 3: | |
1057 | /* | |
1058 | * If, for whatever reason, the previous agm was invalid, | |
1059 | * Assume SGM now contains slot 0, AGM now contains slot 2. | |
1060 | */ | |
1061 | if (old->agm <= 2) | |
1062 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1063 | /* | |
1064 | * mt_state either hasn't changed, or was updated by a recently | |
1065 | * received AGM-CONTACT packet. | |
1066 | */ | |
1067 | break; | |
6b4b49fe DK |
1068 | |
1069 | case 4: | |
1070 | case 5: | |
1071 | /* mt_state was updated by AGM-CONTACT packet */ | |
1072 | break; | |
4dc772d2 DK |
1073 | } |
1074 | } | |
1075 | ||
6b4b49fe DK |
1076 | /* Handle case where mt_state->count = 4, or = 5 */ |
1077 | static void synaptics_image_sensor_45f(struct synaptics_data *priv, | |
1078 | struct synaptics_mt_state *mt_state) | |
1079 | { | |
1080 | /* mt_state was updated correctly by AGM-CONTACT packet */ | |
1081 | priv->mt_state_lost = false; | |
1082 | } | |
1083 | ||
3cdfee9e DK |
1084 | static void synaptics_image_sensor_process(struct psmouse *psmouse, |
1085 | struct synaptics_hw_state *sgm) | |
1086 | { | |
4dc772d2 DK |
1087 | struct synaptics_data *priv = psmouse->private; |
1088 | struct synaptics_hw_state *agm = &priv->agm; | |
1089 | struct synaptics_mt_state mt_state; | |
3cdfee9e | 1090 | |
4dc772d2 DK |
1091 | /* Initialize using current mt_state (as updated by last agm) */ |
1092 | mt_state = agm->mt_state; | |
1093 | ||
1094 | /* | |
1095 | * Update mt_state using the new finger count and current mt_state. | |
1096 | */ | |
3cdfee9e | 1097 | if (sgm->z == 0) |
4dc772d2 | 1098 | synaptics_image_sensor_0f(priv, &mt_state); |
3cdfee9e | 1099 | else if (sgm->w >= 4) |
4dc772d2 | 1100 | synaptics_image_sensor_1f(priv, &mt_state); |
3cdfee9e | 1101 | else if (sgm->w == 0) |
4dc772d2 | 1102 | synaptics_image_sensor_2f(priv, &mt_state); |
6b4b49fe | 1103 | else if (sgm->w == 1 && mt_state.count <= 3) |
4dc772d2 | 1104 | synaptics_image_sensor_3f(priv, &mt_state); |
6b4b49fe DK |
1105 | else |
1106 | synaptics_image_sensor_45f(priv, &mt_state); | |
3cdfee9e DK |
1107 | |
1108 | /* Send resulting input events to user space */ | |
4dc772d2 DK |
1109 | synaptics_report_mt_data(psmouse, &mt_state, sgm); |
1110 | ||
1111 | /* Store updated mt_state */ | |
1112 | priv->mt_state = agm->mt_state = mt_state; | |
1113 | priv->agm_pending = false; | |
3cdfee9e DK |
1114 | } |
1115 | ||
1da177e4 LT |
1116 | /* |
1117 | * called for each full received packet from the touchpad | |
1118 | */ | |
1119 | static void synaptics_process_packet(struct psmouse *psmouse) | |
1120 | { | |
2e5b636b | 1121 | struct input_dev *dev = psmouse->dev; |
1da177e4 LT |
1122 | struct synaptics_data *priv = psmouse->private; |
1123 | struct synaptics_hw_state hw; | |
1124 | int num_fingers; | |
1125 | int finger_width; | |
1da177e4 | 1126 | |
fec6e525 HR |
1127 | if (synaptics_parse_hw_state(psmouse->packet, priv, &hw)) |
1128 | return; | |
1da177e4 | 1129 | |
3cdfee9e DK |
1130 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { |
1131 | synaptics_image_sensor_process(psmouse, &hw); | |
1132 | return; | |
1133 | } | |
1134 | ||
1da177e4 LT |
1135 | if (hw.scroll) { |
1136 | priv->scroll += hw.scroll; | |
1137 | ||
1138 | while (priv->scroll >= 4) { | |
1139 | input_report_key(dev, BTN_BACK, !hw.down); | |
1140 | input_sync(dev); | |
1141 | input_report_key(dev, BTN_BACK, hw.down); | |
1142 | input_sync(dev); | |
1143 | priv->scroll -= 4; | |
1144 | } | |
1145 | while (priv->scroll <= -4) { | |
1146 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
1147 | input_sync(dev); | |
1148 | input_report_key(dev, BTN_FORWARD, hw.up); | |
1149 | input_sync(dev); | |
1150 | priv->scroll += 4; | |
1151 | } | |
1152 | return; | |
1153 | } | |
1154 | ||
4f56ce92 | 1155 | if (hw.z > 0 && hw.x > 1) { |
1da177e4 LT |
1156 | num_fingers = 1; |
1157 | finger_width = 5; | |
1158 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
1159 | switch (hw.w) { | |
1160 | case 0 ... 1: | |
1161 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
1162 | num_fingers = hw.w + 2; | |
1163 | break; | |
1164 | case 2: | |
1165 | if (SYN_MODEL_PEN(priv->model_id)) | |
1166 | ; /* Nothing, treat a pen as a single finger */ | |
1167 | break; | |
1168 | case 4 ... 15: | |
1169 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
1170 | finger_width = hw.w; | |
1171 | break; | |
1172 | } | |
1173 | } | |
1174 | } else { | |
1175 | num_fingers = 0; | |
1176 | finger_width = 0; | |
1177 | } | |
1178 | ||
fec6e525 | 1179 | if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) |
7afdb842 DK |
1180 | synaptics_report_semi_mt_data(dev, &hw, &priv->agm, |
1181 | num_fingers); | |
fec6e525 | 1182 | |
1da177e4 LT |
1183 | /* Post events |
1184 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
1185 | * absolute -> relative conversion | |
1186 | */ | |
1187 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
1188 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
1189 | ||
4f56ce92 | 1190 | if (num_fingers > 0) { |
1da177e4 | 1191 | input_report_abs(dev, ABS_X, hw.x); |
6de58dd6 | 1192 | input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y)); |
1da177e4 LT |
1193 | } |
1194 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
1195 | ||
2a8e7710 CB |
1196 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
1197 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); | |
1198 | ||
1da177e4 | 1199 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); |
e42b6646 PH |
1200 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
1201 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); | |
1202 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); | |
1203 | } | |
1204 | ||
3cdfee9e | 1205 | synaptics_report_buttons(psmouse, &hw); |
1da177e4 LT |
1206 | |
1207 | input_sync(dev); | |
1208 | } | |
1209 | ||
b5d21704 DT |
1210 | static int synaptics_validate_byte(struct psmouse *psmouse, |
1211 | int idx, unsigned char pkt_type) | |
1da177e4 | 1212 | { |
e38de678 HD |
1213 | static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; |
1214 | static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; | |
1215 | static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; | |
1216 | static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; | |
1217 | static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; | |
b5d21704 | 1218 | const char *packet = psmouse->packet; |
1da177e4 LT |
1219 | |
1220 | if (idx < 0 || idx > 4) | |
1221 | return 0; | |
1222 | ||
1223 | switch (pkt_type) { | |
1da177e4 | 1224 | |
a62f0d27 DT |
1225 | case SYN_NEWABS: |
1226 | case SYN_NEWABS_RELAXED: | |
1227 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1228 | |
a62f0d27 DT |
1229 | case SYN_NEWABS_STRICT: |
1230 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1231 | |
a62f0d27 DT |
1232 | case SYN_OLDABS: |
1233 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
1234 | ||
1235 | default: | |
b5d21704 | 1236 | psmouse_err(psmouse, "unknown packet type %d\n", pkt_type); |
a62f0d27 | 1237 | return 0; |
1da177e4 LT |
1238 | } |
1239 | } | |
1240 | ||
1241 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) | |
1242 | { | |
1243 | int i; | |
1244 | ||
1245 | for (i = 0; i < 5; i++) | |
b5d21704 DT |
1246 | if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) { |
1247 | psmouse_info(psmouse, "using relaxed packet validation\n"); | |
1da177e4 LT |
1248 | return SYN_NEWABS_RELAXED; |
1249 | } | |
1250 | ||
1251 | return SYN_NEWABS_STRICT; | |
1252 | } | |
1253 | ||
7d12e780 | 1254 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) |
1da177e4 | 1255 | { |
1da177e4 LT |
1256 | struct synaptics_data *priv = psmouse->private; |
1257 | ||
1da177e4 LT |
1258 | if (psmouse->pktcnt >= 6) { /* Full packet received */ |
1259 | if (unlikely(priv->pkt_type == SYN_NEWABS)) | |
1260 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); | |
1261 | ||
a8b3c0f5 DT |
1262 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && |
1263 | synaptics_is_pt_packet(psmouse->packet)) { | |
1264 | if (priv->pt_port) | |
1265 | synaptics_pass_pt_packet(priv->pt_port, psmouse->packet); | |
1da177e4 LT |
1266 | } else |
1267 | synaptics_process_packet(psmouse); | |
1268 | ||
1269 | return PSMOUSE_FULL_PACKET; | |
1270 | } | |
1271 | ||
b5d21704 | 1272 | return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ? |
1da177e4 LT |
1273 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; |
1274 | } | |
1275 | ||
1276 | /***************************************************************************** | |
1277 | * Driver initialization/cleanup functions | |
1278 | ****************************************************************************/ | |
85615476 DK |
1279 | static void set_abs_position_params(struct input_dev *dev, |
1280 | struct synaptics_data *priv, int x_code, | |
1281 | int y_code) | |
1da177e4 | 1282 | { |
85615476 DK |
1283 | int x_min = priv->x_min ?: XMIN_NOMINAL; |
1284 | int x_max = priv->x_max ?: XMAX_NOMINAL; | |
1285 | int y_min = priv->y_min ?: YMIN_NOMINAL; | |
1286 | int y_max = priv->y_max ?: YMAX_NOMINAL; | |
a9f0b79e DK |
1287 | int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ? |
1288 | SYN_REDUCED_FILTER_FUZZ : 0; | |
1da177e4 | 1289 | |
85615476 DK |
1290 | input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0); |
1291 | input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0); | |
1292 | input_abs_set_res(dev, x_code, priv->x_res); | |
1293 | input_abs_set_res(dev, y_code, priv->y_res); | |
1294 | } | |
1295 | ||
43e19888 HG |
1296 | static void set_input_params(struct psmouse *psmouse, |
1297 | struct synaptics_data *priv) | |
85615476 | 1298 | { |
43e19888 | 1299 | struct input_dev *dev = psmouse->dev; |
85615476 DK |
1300 | int i; |
1301 | ||
7968a5dd | 1302 | /* Things that apply to both modes */ |
c14890a8 | 1303 | __set_bit(INPUT_PROP_POINTER, dev->propbit); |
7968a5dd DD |
1304 | __set_bit(EV_KEY, dev->evbit); |
1305 | __set_bit(BTN_LEFT, dev->keybit); | |
1306 | __set_bit(BTN_RIGHT, dev->keybit); | |
c14890a8 | 1307 | |
7968a5dd DD |
1308 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
1309 | __set_bit(BTN_MIDDLE, dev->keybit); | |
1310 | ||
1311 | if (!priv->absolute_mode) { | |
1312 | /* Relative mode */ | |
1313 | __set_bit(EV_REL, dev->evbit); | |
1314 | __set_bit(REL_X, dev->relbit); | |
1315 | __set_bit(REL_Y, dev->relbit); | |
1316 | return; | |
1317 | } | |
1318 | ||
1319 | /* Absolute mode */ | |
b7802c5c | 1320 | __set_bit(EV_ABS, dev->evbit); |
85615476 | 1321 | set_abs_position_params(dev, priv, ABS_X, ABS_Y); |
1da177e4 | 1322 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); |
2a8e7710 | 1323 | |
3cdfee9e | 1324 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { |
3cdfee9e DK |
1325 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, |
1326 | ABS_MT_POSITION_Y); | |
1327 | /* Image sensors can report per-contact pressure */ | |
1328 | input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
0b85bf78 | 1329 | input_mt_init_slots(dev, 2, INPUT_MT_POINTER); |
6b4b49fe DK |
1330 | |
1331 | /* Image sensors can signal 4 and 5 finger clicks */ | |
1332 | __set_bit(BTN_TOOL_QUADTAP, dev->keybit); | |
1333 | __set_bit(BTN_TOOL_QUINTTAP, dev->keybit); | |
3cdfee9e DK |
1334 | } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) { |
1335 | /* Non-image sensors with AGM use semi-mt */ | |
fec6e525 | 1336 | __set_bit(INPUT_PROP_SEMI_MT, dev->propbit); |
b4adbbef | 1337 | input_mt_init_slots(dev, 2, 0); |
85615476 DK |
1338 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, |
1339 | ABS_MT_POSITION_Y); | |
fec6e525 HR |
1340 | } |
1341 | ||
2a8e7710 | 1342 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
58fb0218 | 1343 | input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0); |
1da177e4 | 1344 | |
b7802c5c DT |
1345 | __set_bit(BTN_TOUCH, dev->keybit); |
1346 | __set_bit(BTN_TOOL_FINGER, dev->keybit); | |
1da177e4 | 1347 | |
e42b6646 | 1348 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
b7802c5c DT |
1349 | __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); |
1350 | __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); | |
e42b6646 PH |
1351 | } |
1352 | ||
1da177e4 LT |
1353 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || |
1354 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
b7802c5c DT |
1355 | __set_bit(BTN_FORWARD, dev->keybit); |
1356 | __set_bit(BTN_BACK, dev->keybit); | |
1da177e4 LT |
1357 | } |
1358 | ||
1359 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
b7802c5c | 1360 | __set_bit(BTN_0 + i, dev->keybit); |
1da177e4 | 1361 | |
b7802c5c DT |
1362 | __clear_bit(EV_REL, dev->evbit); |
1363 | __clear_bit(REL_X, dev->relbit); | |
1364 | __clear_bit(REL_Y, dev->relbit); | |
ec20a022 | 1365 | |
5f57d67d | 1366 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { |
c14890a8 | 1367 | __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); |
43e19888 HG |
1368 | /* See if this buttonpad has a top button area */ |
1369 | if (!strncmp(psmouse->ps2dev.serio->firmware_id, "PNP:", 4)) { | |
1370 | for (i = 0; topbuttonpad_pnp_ids[i]; i++) { | |
1371 | if (strstr(psmouse->ps2dev.serio->firmware_id, | |
1372 | topbuttonpad_pnp_ids[i])) { | |
1373 | __set_bit(INPUT_PROP_TOPBUTTONPAD, | |
1374 | dev->propbit); | |
1375 | break; | |
1376 | } | |
1377 | } | |
1378 | } | |
5f57d67d TI |
1379 | /* Clickpads report only left button */ |
1380 | __clear_bit(BTN_RIGHT, dev->keybit); | |
1381 | __clear_bit(BTN_MIDDLE, dev->keybit); | |
1382 | } | |
1da177e4 LT |
1383 | } |
1384 | ||
7968a5dd DD |
1385 | static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse, |
1386 | void *data, char *buf) | |
1387 | { | |
1388 | struct synaptics_data *priv = psmouse->private; | |
1389 | ||
1390 | return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0'); | |
1391 | } | |
1392 | ||
1393 | static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse, | |
1394 | void *data, const char *buf, | |
1395 | size_t len) | |
1396 | { | |
1397 | struct synaptics_data *priv = psmouse->private; | |
1398 | unsigned int value; | |
1399 | int err; | |
1400 | ||
1401 | err = kstrtouint(buf, 10, &value); | |
1402 | if (err) | |
1403 | return err; | |
1404 | ||
1405 | if (value > 1) | |
1406 | return -EINVAL; | |
1407 | ||
1408 | if (value == priv->disable_gesture) | |
1409 | return len; | |
1410 | ||
1411 | priv->disable_gesture = value; | |
1412 | if (value) | |
1413 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
1414 | else | |
1415 | priv->mode &= ~SYN_BIT_DISABLE_GESTURE; | |
1416 | ||
1417 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
1418 | return -EIO; | |
1419 | ||
1420 | return len; | |
1421 | } | |
1422 | ||
1423 | PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL, | |
1424 | synaptics_show_disable_gesture, | |
1425 | synaptics_set_disable_gesture); | |
1426 | ||
1da177e4 LT |
1427 | static void synaptics_disconnect(struct psmouse *psmouse) |
1428 | { | |
7968a5dd DD |
1429 | struct synaptics_data *priv = psmouse->private; |
1430 | ||
1431 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1432 | device_remove_file(&psmouse->ps2dev.serio->dev, | |
1433 | &psmouse_attr_disable_gesture.dattr); | |
1434 | ||
1da177e4 | 1435 | synaptics_reset(psmouse); |
7968a5dd | 1436 | kfree(priv); |
1da177e4 LT |
1437 | psmouse->private = NULL; |
1438 | } | |
1439 | ||
1440 | static int synaptics_reconnect(struct psmouse *psmouse) | |
1441 | { | |
1442 | struct synaptics_data *priv = psmouse->private; | |
1443 | struct synaptics_data old_priv = *priv; | |
eeb06558 | 1444 | unsigned char param[2]; |
c63fe0a4 APF |
1445 | int retry = 0; |
1446 | int error; | |
1da177e4 | 1447 | |
c63fe0a4 APF |
1448 | do { |
1449 | psmouse_reset(psmouse); | |
8521478f DT |
1450 | if (retry) { |
1451 | /* | |
1452 | * On some boxes, right after resuming, the touchpad | |
1453 | * needs some time to finish initializing (I assume | |
1454 | * it needs time to calibrate) and start responding | |
1455 | * to Synaptics-specific queries, so let's wait a | |
1456 | * bit. | |
1457 | */ | |
1458 | ssleep(1); | |
1459 | } | |
eeb06558 | 1460 | ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID); |
c63fe0a4 APF |
1461 | error = synaptics_detect(psmouse, 0); |
1462 | } while (error && ++retry < 3); | |
4d368456 | 1463 | |
c63fe0a4 | 1464 | if (error) |
1da177e4 LT |
1465 | return -1; |
1466 | ||
c63fe0a4 | 1467 | if (retry > 1) |
b5d21704 | 1468 | psmouse_dbg(psmouse, "reconnected after %d tries\n", retry); |
c63fe0a4 | 1469 | |
1da177e4 | 1470 | if (synaptics_query_hardware(psmouse)) { |
b5d21704 | 1471 | psmouse_err(psmouse, "Unable to query device.\n"); |
1da177e4 LT |
1472 | return -1; |
1473 | } | |
1474 | ||
7968a5dd | 1475 | if (synaptics_set_mode(psmouse)) { |
b5d21704 | 1476 | psmouse_err(psmouse, "Unable to initialize device.\n"); |
1da177e4 LT |
1477 | return -1; |
1478 | } | |
1479 | ||
baddf589 APF |
1480 | if (old_priv.identity != priv->identity || |
1481 | old_priv.model_id != priv->model_id || | |
1482 | old_priv.capabilities != priv->capabilities || | |
1483 | old_priv.ext_cap != priv->ext_cap) { | |
b5d21704 DT |
1484 | psmouse_err(psmouse, |
1485 | "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n", | |
1486 | old_priv.identity, priv->identity, | |
1487 | old_priv.model_id, priv->model_id, | |
1488 | old_priv.capabilities, priv->capabilities, | |
1489 | old_priv.ext_cap, priv->ext_cap); | |
baddf589 APF |
1490 | return -1; |
1491 | } | |
1492 | ||
1da177e4 LT |
1493 | return 0; |
1494 | } | |
1495 | ||
7705d548 DT |
1496 | static bool impaired_toshiba_kbc; |
1497 | ||
c963156c | 1498 | static const struct dmi_system_id toshiba_dmi_table[] __initconst = { |
7705d548 | 1499 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) |
1da177e4 | 1500 | { |
9961e259 | 1501 | /* Toshiba Satellite */ |
1da177e4 LT |
1502 | .matches = { |
1503 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c | 1504 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
1da177e4 LT |
1505 | }, |
1506 | }, | |
9ba5eaaf | 1507 | { |
9961e259 | 1508 | /* Toshiba Dynabook */ |
9ba5eaaf SH |
1509 | .matches = { |
1510 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c RT |
1511 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), |
1512 | }, | |
1513 | }, | |
1514 | { | |
9961e259 | 1515 | /* Toshiba Portege M300 */ |
53a2670c RT |
1516 | .matches = { |
1517 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1518 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), | |
9ba5eaaf | 1519 | }, |
5f5eeff4 DT |
1520 | |
1521 | }, | |
1522 | { | |
9961e259 | 1523 | /* Toshiba Portege M300 */ |
5f5eeff4 DT |
1524 | .matches = { |
1525 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1526 | DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), | |
1527 | DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), | |
1528 | }, | |
1529 | ||
9ba5eaaf | 1530 | }, |
1da177e4 | 1531 | #endif |
70874867 | 1532 | { } |
7705d548 DT |
1533 | }; |
1534 | ||
ef8313bb AS |
1535 | static bool broken_olpc_ec; |
1536 | ||
c963156c | 1537 | static const struct dmi_system_id olpc_dmi_table[] __initconst = { |
ef8313bb AS |
1538 | #if defined(CONFIG_DMI) && defined(CONFIG_OLPC) |
1539 | { | |
1540 | /* OLPC XO-1 or XO-1.5 */ | |
1541 | .matches = { | |
1542 | DMI_MATCH(DMI_SYS_VENDOR, "OLPC"), | |
1543 | DMI_MATCH(DMI_PRODUCT_NAME, "XO"), | |
1544 | }, | |
1545 | }, | |
ef8313bb | 1546 | #endif |
70874867 | 1547 | { } |
ef8313bb AS |
1548 | }; |
1549 | ||
421e08c4 BT |
1550 | static const struct dmi_system_id min_max_dmi_table[] __initconst = { |
1551 | #if defined(CONFIG_DMI) | |
1552 | { | |
1553 | /* Lenovo ThinkPad Helix */ | |
1554 | .matches = { | |
1555 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1556 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Helix"), | |
1557 | }, | |
1558 | .driver_data = (int []){1024, 5052, 2258, 4832}, | |
1559 | }, | |
8a0435d9 HG |
1560 | { |
1561 | /* Lenovo ThinkPad X240 */ | |
1562 | .matches = { | |
1563 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1564 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X240"), | |
1565 | }, | |
1566 | .driver_data = (int []){1232, 5710, 1156, 4696}, | |
1567 | }, | |
27a38856 HG |
1568 | { |
1569 | /* Lenovo ThinkPad Edge E431 */ | |
1570 | .matches = { | |
1571 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1572 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Edge E431"), | |
1573 | }, | |
1574 | .driver_data = (int []){1024, 5022, 2508, 4832}, | |
1575 | }, | |
46a2986e HG |
1576 | { |
1577 | /* Lenovo ThinkPad T431s */ | |
1578 | .matches = { | |
1579 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1580 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T431"), | |
1581 | }, | |
1582 | .driver_data = (int []){1024, 5112, 2024, 4832}, | |
1583 | }, | |
421e08c4 BT |
1584 | { |
1585 | /* Lenovo ThinkPad T440s */ | |
1586 | .matches = { | |
1587 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1588 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T440"), | |
1589 | }, | |
1590 | .driver_data = (int []){1024, 5112, 2024, 4832}, | |
1591 | }, | |
46a2986e HG |
1592 | { |
1593 | /* Lenovo ThinkPad L440 */ | |
1594 | .matches = { | |
1595 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1596 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L440"), | |
1597 | }, | |
1598 | .driver_data = (int []){1024, 5112, 2024, 4832}, | |
1599 | }, | |
421e08c4 BT |
1600 | { |
1601 | /* Lenovo ThinkPad T540p */ | |
1602 | .matches = { | |
1603 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1604 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T540"), | |
1605 | }, | |
6d396ede | 1606 | .driver_data = (int []){1024, 5112, 2024, 4832}, |
421e08c4 | 1607 | }, |
46a2986e HG |
1608 | { |
1609 | /* Lenovo ThinkPad L540 */ | |
1610 | .matches = { | |
1611 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1612 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad L540"), | |
1613 | }, | |
1614 | .driver_data = (int []){1024, 5112, 2024, 4832}, | |
1615 | }, | |
0b5fe736 HG |
1616 | { |
1617 | /* Lenovo ThinkPad W540 */ | |
1618 | .matches = { | |
1619 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1620 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad W540"), | |
1621 | }, | |
1622 | .driver_data = (int []){1024, 5112, 2024, 4832}, | |
1623 | }, | |
46a2986e HG |
1624 | { |
1625 | /* Lenovo Yoga S1 */ | |
1626 | .matches = { | |
1627 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1628 | DMI_EXACT_MATCH(DMI_PRODUCT_VERSION, | |
1629 | "ThinkPad S1 Yoga"), | |
1630 | }, | |
1631 | .driver_data = (int []){1232, 5710, 1156, 4696}, | |
1632 | }, | |
1633 | { | |
1634 | /* Lenovo ThinkPad X1 Carbon Haswell (3rd generation) */ | |
1635 | .matches = { | |
1636 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1637 | DMI_MATCH(DMI_PRODUCT_VERSION, | |
1638 | "ThinkPad X1 Carbon 2nd"), | |
1639 | }, | |
1640 | .driver_data = (int []){1024, 5112, 2024, 4832}, | |
1641 | }, | |
421e08c4 BT |
1642 | #endif |
1643 | { } | |
1644 | }; | |
1645 | ||
7705d548 DT |
1646 | void __init synaptics_module_init(void) |
1647 | { | |
421e08c4 BT |
1648 | const struct dmi_system_id *min_max_dmi; |
1649 | ||
7705d548 | 1650 | impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); |
ef8313bb | 1651 | broken_olpc_ec = dmi_check_system(olpc_dmi_table); |
421e08c4 BT |
1652 | |
1653 | min_max_dmi = dmi_first_match(min_max_dmi_table); | |
1654 | if (min_max_dmi) | |
1655 | quirk_min_max = min_max_dmi->driver_data; | |
7705d548 | 1656 | } |
1da177e4 | 1657 | |
7968a5dd | 1658 | static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) |
1da177e4 LT |
1659 | { |
1660 | struct synaptics_data *priv; | |
7968a5dd | 1661 | int err = -1; |
1da177e4 | 1662 | |
ef8313bb | 1663 | /* |
83551c01 DD |
1664 | * The OLPC XO has issues with Synaptics' absolute mode; the constant |
1665 | * packet spew overloads the EC such that key presses on the keyboard | |
1666 | * are missed. Given that, don't even attempt to use Absolute mode. | |
1667 | * Relative mode seems to work just fine. | |
ef8313bb | 1668 | */ |
83551c01 | 1669 | if (absolute_mode && broken_olpc_ec) { |
b5d21704 DT |
1670 | psmouse_info(psmouse, |
1671 | "OLPC XO detected, not enabling Synaptics protocol.\n"); | |
ef8313bb AS |
1672 | return -ENODEV; |
1673 | } | |
1674 | ||
b39787a9 | 1675 | psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); |
1da177e4 | 1676 | if (!priv) |
6792cbbb | 1677 | return -ENOMEM; |
1da177e4 | 1678 | |
4d368456 AW |
1679 | psmouse_reset(psmouse); |
1680 | ||
1da177e4 | 1681 | if (synaptics_query_hardware(psmouse)) { |
b5d21704 | 1682 | psmouse_err(psmouse, "Unable to query device.\n"); |
1da177e4 LT |
1683 | goto init_fail; |
1684 | } | |
1685 | ||
7968a5dd DD |
1686 | priv->absolute_mode = absolute_mode; |
1687 | if (SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1688 | priv->disable_gesture = true; | |
1da177e4 | 1689 | |
7968a5dd DD |
1690 | if (synaptics_set_mode(psmouse)) { |
1691 | psmouse_err(psmouse, "Unable to initialize device.\n"); | |
fec6e525 HR |
1692 | goto init_fail; |
1693 | } | |
1694 | ||
1da177e4 LT |
1695 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; |
1696 | ||
b5d21704 | 1697 | psmouse_info(psmouse, |
c6bd9d46 | 1698 | "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n", |
b5d21704 DT |
1699 | SYN_ID_MODEL(priv->identity), |
1700 | SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), | |
1701 | priv->model_id, | |
c6bd9d46 DK |
1702 | priv->capabilities, priv->ext_cap, priv->ext_cap_0c, |
1703 | priv->board_id, priv->firmware_id); | |
409b7506 | 1704 | |
43e19888 | 1705 | set_input_params(psmouse, priv); |
1da177e4 | 1706 | |
887cc127 DT |
1707 | /* |
1708 | * Encode touchpad model so that it can be used to set | |
1709 | * input device->id.version and be visible to userspace. | |
1710 | * Because version is __u16 we have to drop something. | |
1711 | * Hardware info bits seem to be good candidates as they | |
1712 | * are documented to be for Synaptics corp. internal use. | |
1713 | */ | |
1714 | psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | | |
1715 | (priv->model_id & 0x000000ff); | |
1716 | ||
7968a5dd DD |
1717 | if (absolute_mode) { |
1718 | psmouse->protocol_handler = synaptics_process_byte; | |
1719 | psmouse->pktsize = 6; | |
1720 | } else { | |
1721 | /* Relative mode follows standard PS/2 mouse protocol */ | |
1722 | psmouse->protocol_handler = psmouse_process_byte; | |
1723 | psmouse->pktsize = 3; | |
1724 | } | |
1725 | ||
1da177e4 LT |
1726 | psmouse->set_rate = synaptics_set_rate; |
1727 | psmouse->disconnect = synaptics_disconnect; | |
1728 | psmouse->reconnect = synaptics_reconnect; | |
a1cec061 | 1729 | psmouse->cleanup = synaptics_reset; |
f0d5c6f4 DT |
1730 | /* Synaptics can usually stay in sync without extra help */ |
1731 | psmouse->resync_time = 0; | |
1da177e4 LT |
1732 | |
1733 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
1734 | synaptics_pt_create(psmouse); | |
1735 | ||
1da177e4 LT |
1736 | /* |
1737 | * Toshiba's KBC seems to have trouble handling data from | |
7ee99161 AS |
1738 | * Synaptics at full rate. Switch to a lower rate (roughly |
1739 | * the same rate as a standard PS/2 mouse). | |
1da177e4 | 1740 | */ |
7705d548 | 1741 | if (psmouse->rate >= 80 && impaired_toshiba_kbc) { |
b5d21704 DT |
1742 | psmouse_info(psmouse, |
1743 | "Toshiba %s detected, limiting rate to 40pps.\n", | |
1744 | dmi_get_system_info(DMI_PRODUCT_NAME)); | |
1da177e4 LT |
1745 | psmouse->rate = 40; |
1746 | } | |
1da177e4 | 1747 | |
7968a5dd DD |
1748 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) { |
1749 | err = device_create_file(&psmouse->ps2dev.serio->dev, | |
1750 | &psmouse_attr_disable_gesture.dattr); | |
1751 | if (err) { | |
1752 | psmouse_err(psmouse, | |
1753 | "Failed to create disable_gesture attribute (%d)", | |
1754 | err); | |
1755 | goto init_fail; | |
1756 | } | |
1757 | } | |
1758 | ||
1da177e4 LT |
1759 | return 0; |
1760 | ||
1761 | init_fail: | |
1762 | kfree(priv); | |
7968a5dd DD |
1763 | return err; |
1764 | } | |
1765 | ||
1766 | int synaptics_init(struct psmouse *psmouse) | |
1767 | { | |
1768 | return __synaptics_init(psmouse, true); | |
1769 | } | |
1770 | ||
1771 | int synaptics_init_relative(struct psmouse *psmouse) | |
1772 | { | |
1773 | return __synaptics_init(psmouse, false); | |
1da177e4 LT |
1774 | } |
1775 | ||
e4e6efd2 DD |
1776 | bool synaptics_supported(void) |
1777 | { | |
1778 | return true; | |
1779 | } | |
1780 | ||
55e3d922 AS |
1781 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
1782 | ||
7705d548 DT |
1783 | void __init synaptics_module_init(void) |
1784 | { | |
1785 | } | |
1786 | ||
55e3d922 AS |
1787 | int synaptics_init(struct psmouse *psmouse) |
1788 | { | |
1789 | return -ENOSYS; | |
1790 | } | |
1791 | ||
e4e6efd2 DD |
1792 | bool synaptics_supported(void) |
1793 | { | |
1794 | return false; | |
1795 | } | |
1796 | ||
55e3d922 | 1797 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ |