1 | // SPDX-License-Identifier: GPL-2.0-only |
---|---|
2 | /* |
3 | * Synaptics TouchPad PS/2 mouse driver |
4 | * |
5 | * 2003 Dmitry Torokhov <dtor@mail.ru> |
6 | * Added support for pass-through port. Special thanks to Peter Berg Larsen |
7 | * for explaining various Synaptics quirks. |
8 | * |
9 | * 2003 Peter Osterlund <petero2@telia.com> |
10 | * Ported to 2.5 input device infrastructure. |
11 | * |
12 | * Copyright (C) 2001 Stefan Gmeiner <riddlebox@freesurf.ch> |
13 | * start merging tpconfig and gpm code to a xfree-input module |
14 | * adding some changes and extensions (ex. 3rd and 4th button) |
15 | * |
16 | * Copyright (c) 1997 C. Scott Ananian <cananian@alumni.priceton.edu> |
17 | * Copyright (c) 1998-2000 Bruce Kalk <kall@compass.com> |
18 | * code for the special synaptics commands (from the tpconfig-source) |
19 | * |
20 | * Trademarks are the property of their respective owners. |
21 | */ |
22 | |
23 | #include <linux/module.h> |
24 | #include <linux/delay.h> |
25 | #include <linux/dmi.h> |
26 | #include <linux/input/mt.h> |
27 | #include <linux/serio.h> |
28 | #include <linux/libps2.h> |
29 | #include <linux/rmi.h> |
30 | #include <linux/i2c.h> |
31 | #include <linux/slab.h> |
32 | #include "psmouse.h" |
33 | #include "synaptics.h" |
34 | |
35 | /* |
36 | * The x/y limits are taken from the Synaptics TouchPad interfacing Guide, |
37 | * section 2.3.2, which says that they should be valid regardless of the |
38 | * actual size of the sensor. |
39 | * Note that newer firmware allows querying device for maximum useable |
40 | * coordinates. |
41 | */ |
42 | #define XMIN 0 |
43 | #define XMAX 6143 |
44 | #define YMIN 0 |
45 | #define YMAX 6143 |
46 | #define XMIN_NOMINAL 1472 |
47 | #define XMAX_NOMINAL 5472 |
48 | #define YMIN_NOMINAL 1408 |
49 | #define YMAX_NOMINAL 4448 |
50 | |
51 | /* Size in bits of absolute position values reported by the hardware */ |
52 | #define ABS_POS_BITS 13 |
53 | |
54 | /* |
55 | * These values should represent the absolute maximum value that will |
56 | * be reported for a positive position value. Some Synaptics firmware |
57 | * uses this value to indicate a finger near the edge of the touchpad |
58 | * whose precise position cannot be determined. |
59 | * |
60 | * At least one touchpad is known to report positions in excess of this |
61 | * value which are actually negative values truncated to the 13-bit |
62 | * reporting range. These values have never been observed to be lower |
63 | * than 8184 (i.e. -8), so we treat all values greater than 8176 as |
64 | * negative and any other value as positive. |
65 | */ |
66 | #define X_MAX_POSITIVE 8176 |
67 | #define Y_MAX_POSITIVE 8176 |
68 | |
69 | /* maximum ABS_MT_POSITION displacement (in mm) */ |
70 | #define DMAX 10 |
71 | |
72 | /***************************************************************************** |
73 | * Stuff we need even when we do not want native Synaptics support |
74 | ****************************************************************************/ |
75 | |
76 | /* |
77 | * Set the synaptics touchpad mode byte by special commands |
78 | */ |
79 | static int synaptics_mode_cmd(struct psmouse *psmouse, u8 mode) |
80 | { |
81 | u8 param[1]; |
82 | int error; |
83 | |
84 | error = ps2_sliced_command(ps2dev: &psmouse->ps2dev, command: mode); |
85 | if (error) |
86 | return error; |
87 | |
88 | param[0] = SYN_PS_SET_MODE2; |
89 | error = ps2_command(ps2dev: &psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE); |
90 | if (error) |
91 | return error; |
92 | |
93 | return 0; |
94 | } |
95 | |
96 | int synaptics_detect(struct psmouse *psmouse, bool set_properties) |
97 | { |
98 | struct ps2dev *ps2dev = &psmouse->ps2dev; |
99 | u8 param[4] = { 0 }; |
100 | |
101 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); |
102 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); |
103 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); |
104 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); |
105 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); |
106 | |
107 | if (param[1] != 0x47) |
108 | return -ENODEV; |
109 | |
110 | if (set_properties) { |
111 | psmouse->vendor = "Synaptics"; |
112 | psmouse->name = "TouchPad"; |
113 | } |
114 | |
115 | return 0; |
116 | } |
117 | |
118 | void synaptics_reset(struct psmouse *psmouse) |
119 | { |
120 | /* reset touchpad back to relative mode, gestures enabled */ |
121 | synaptics_mode_cmd(psmouse, mode: 0); |
122 | } |
123 | |
124 | #if defined(CONFIG_MOUSE_PS2_SYNAPTICS) || \ |
125 | defined(CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS) |
126 | |
127 | /* This list has been kindly provided by Synaptics. */ |
128 | static const char * const topbuttonpad_pnp_ids[] = { |
129 | "LEN0017", |
130 | "LEN0018", |
131 | "LEN0019", |
132 | "LEN0023", |
133 | "LEN002A", |
134 | "LEN002B", |
135 | "LEN002C", |
136 | "LEN002D", |
137 | "LEN002E", |
138 | "LEN0033", /* Helix */ |
139 | "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */ |
140 | "LEN0035", /* X240 */ |
141 | "LEN0036", /* T440 */ |
142 | "LEN0037", /* X1 Carbon 2nd */ |
143 | "LEN0038", |
144 | "LEN0039", /* T440s */ |
145 | "LEN0041", |
146 | "LEN0042", /* Yoga */ |
147 | "LEN0045", |
148 | "LEN0047", |
149 | "LEN2000", /* S540 */ |
150 | "LEN2001", /* Edge E431 */ |
151 | "LEN2002", /* Edge E531 */ |
152 | "LEN2003", |
153 | "LEN2004", /* L440 */ |
154 | "LEN2005", |
155 | "LEN2006", /* Edge E440/E540 */ |
156 | "LEN2007", |
157 | "LEN2008", |
158 | "LEN2009", |
159 | "LEN200A", |
160 | "LEN200B", |
161 | NULL |
162 | }; |
163 | |
164 | #ifdef CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS |
165 | static const char * const smbus_pnp_ids[] = { |
166 | /* all of the topbuttonpad_pnp_ids are valid, we just add some extras */ |
167 | "DLL060d", /* Dell Precision M3800 */ |
168 | "LEN0048", /* X1 Carbon 3 */ |
169 | "LEN0046", /* X250 */ |
170 | "LEN0049", /* Yoga 11e */ |
171 | "LEN004a", /* W541 */ |
172 | "LEN005b", /* P50 */ |
173 | "LEN005e", /* T560 */ |
174 | "LEN006c", /* T470s */ |
175 | "LEN007a", /* T470s */ |
176 | "LEN0071", /* T480 */ |
177 | "LEN0072", /* X1 Carbon Gen 5 (2017) - Elan/ALPS trackpoint */ |
178 | "LEN0073", /* X1 Carbon G5 (Elantech) */ |
179 | "LEN0091", /* X1 Carbon 6 */ |
180 | "LEN0092", /* X1 Carbon 6 */ |
181 | "LEN0093", /* T480 */ |
182 | "LEN0096", /* X280 */ |
183 | "LEN0097", /* X280 -> ALPS trackpoint */ |
184 | "LEN0099", /* X1 Extreme Gen 1 / P1 Gen 1 */ |
185 | "LEN009b", /* T580 */ |
186 | "LEN0402", /* X1 Extreme Gen 2 / P1 Gen 2 */ |
187 | "LEN040f", /* P1 Gen 3 */ |
188 | "LEN0411", /* L14 Gen 1 */ |
189 | "LEN200f", /* T450s */ |
190 | "LEN2044", /* L470 */ |
191 | "LEN2054", /* E480 */ |
192 | "LEN2055", /* E580 */ |
193 | "LEN2068", /* T14 Gen 1 */ |
194 | "SYN1221", /* TUXEDO InfinityBook Pro 14 v5 */ |
195 | "SYN3003", /* HP EliteBook 850 G1 */ |
196 | "SYN3015", /* HP EliteBook 840 G2 */ |
197 | "SYN3052", /* HP EliteBook 840 G4 */ |
198 | "SYN3221", /* HP 15-ay000 */ |
199 | "SYN323d", /* HP Spectre X360 13-w013dx */ |
200 | "SYN3257", /* HP Envy 13-ad105ng */ |
201 | "TOS01f6", /* Dynabook Portege X30L-G */ |
202 | "TOS0213", /* Dynabook Portege X30-D */ |
203 | NULL |
204 | }; |
205 | #endif |
206 | |
207 | static const char * const forcepad_pnp_ids[] = { |
208 | "SYN300D", |
209 | "SYN3014", |
210 | NULL |
211 | }; |
212 | |
213 | /* |
214 | * Send a command to the synaptics touchpad by special commands |
215 | */ |
216 | static int synaptics_send_cmd(struct psmouse *psmouse, u8 cmd, u8 *param) |
217 | { |
218 | int error; |
219 | |
220 | error = ps2_sliced_command(ps2dev: &psmouse->ps2dev, command: cmd); |
221 | if (error) |
222 | return error; |
223 | |
224 | error = ps2_command(ps2dev: &psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO); |
225 | if (error) |
226 | return error; |
227 | |
228 | return 0; |
229 | } |
230 | |
231 | static int synaptics_query_int(struct psmouse *psmouse, u8 query_cmd, u32 *val) |
232 | { |
233 | int error; |
234 | union { |
235 | __be32 be_val; |
236 | char buf[4]; |
237 | } resp = { 0 }; |
238 | |
239 | error = synaptics_send_cmd(psmouse, cmd: query_cmd, param: resp.buf + 1); |
240 | if (error) |
241 | return error; |
242 | |
243 | *val = be32_to_cpu(resp.be_val); |
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 | struct synaptics_device_info *info) |
253 | { |
254 | int error; |
255 | |
256 | error = synaptics_query_int(psmouse, SYN_QUE_IDENTIFY, val: &info->identity); |
257 | if (error) |
258 | return error; |
259 | |
260 | return SYN_ID_IS_SYNAPTICS(info->identity) ? 0 : -ENXIO; |
261 | } |
262 | |
263 | /* |
264 | * Read the model-id bytes from the touchpad |
265 | * see also SYN_MODEL_* macros |
266 | */ |
267 | static int synaptics_model_id(struct psmouse *psmouse, |
268 | struct synaptics_device_info *info) |
269 | { |
270 | return synaptics_query_int(psmouse, SYN_QUE_MODEL, val: &info->model_id); |
271 | } |
272 | |
273 | /* |
274 | * Read the firmware id from the touchpad |
275 | */ |
276 | static int synaptics_firmware_id(struct psmouse *psmouse, |
277 | struct synaptics_device_info *info) |
278 | { |
279 | return synaptics_query_int(psmouse, SYN_QUE_FIRMWARE_ID, |
280 | val: &info->firmware_id); |
281 | } |
282 | |
283 | /* |
284 | * Read the board id and the "More Extended Queries" from the touchpad |
285 | * The board id is encoded in the "QUERY MODES" response |
286 | */ |
287 | static int synaptics_query_modes(struct psmouse *psmouse, |
288 | struct synaptics_device_info *info) |
289 | { |
290 | u8 bid[3]; |
291 | int error; |
292 | |
293 | /* firmwares prior 7.5 have no board_id encoded */ |
294 | if (SYN_ID_FULL(info->identity) < 0x705) |
295 | return 0; |
296 | |
297 | error = synaptics_send_cmd(psmouse, SYN_QUE_MODES, param: bid); |
298 | if (error) |
299 | return error; |
300 | |
301 | info->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; |
302 | |
303 | if (SYN_MEXT_CAP_BIT(bid[0])) |
304 | return synaptics_query_int(psmouse, SYN_QUE_MEXT_CAPAB_10, |
305 | val: &info->ext_cap_10); |
306 | |
307 | return 0; |
308 | } |
309 | |
310 | /* |
311 | * Read the capability-bits from the touchpad |
312 | * see also the SYN_CAP_* macros |
313 | */ |
314 | static int synaptics_capability(struct psmouse *psmouse, |
315 | struct synaptics_device_info *info) |
316 | { |
317 | int error; |
318 | |
319 | error = synaptics_query_int(psmouse, SYN_QUE_CAPABILITIES, |
320 | val: &info->capabilities); |
321 | if (error) |
322 | return error; |
323 | |
324 | info->ext_cap = info->ext_cap_0c = 0; |
325 | |
326 | /* |
327 | * Older firmwares had submodel ID fixed to 0x47 |
328 | */ |
329 | if (SYN_ID_FULL(info->identity) < 0x705 && |
330 | SYN_CAP_SUBMODEL_ID(info->capabilities) != 0x47) { |
331 | return -ENXIO; |
332 | } |
333 | |
334 | /* |
335 | * Unless capExtended is set the rest of the flags should be ignored |
336 | */ |
337 | if (!SYN_CAP_EXTENDED(info->capabilities)) |
338 | info->capabilities = 0; |
339 | |
340 | if (SYN_EXT_CAP_REQUESTS(info->capabilities) >= 1) { |
341 | error = synaptics_query_int(psmouse, SYN_QUE_EXT_CAPAB, |
342 | val: &info->ext_cap); |
343 | if (error) { |
344 | psmouse_warn(psmouse, |
345 | "device claims to have extended capabilities, but I'm not able to read them.\n"); |
346 | } else { |
347 | /* |
348 | * if nExtBtn is greater than 8 it should be considered |
349 | * invalid and treated as 0 |
350 | */ |
351 | if (SYN_CAP_MULTI_BUTTON_NO(info->ext_cap) > 8) |
352 | info->ext_cap &= ~SYN_CAP_MB_MASK; |
353 | } |
354 | } |
355 | |
356 | if (SYN_EXT_CAP_REQUESTS(info->capabilities) >= 4) { |
357 | error = synaptics_query_int(psmouse, SYN_QUE_EXT_CAPAB_0C, |
358 | val: &info->ext_cap_0c); |
359 | if (error) |
360 | psmouse_warn(psmouse, |
361 | "device claims to have extended capability 0x0c, but I'm not able to read it.\n"); |
362 | } |
363 | |
364 | return 0; |
365 | } |
366 | |
367 | /* |
368 | * Read touchpad resolution and maximum reported coordinates |
369 | * Resolution is left zero if touchpad does not support the query |
370 | */ |
371 | static int synaptics_resolution(struct psmouse *psmouse, |
372 | struct synaptics_device_info *info) |
373 | { |
374 | u8 resp[3]; |
375 | int error; |
376 | |
377 | if (SYN_ID_MAJOR(info->identity) < 4) |
378 | return 0; |
379 | |
380 | error = synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, param: resp); |
381 | if (!error) { |
382 | if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) { |
383 | info->x_res = resp[0]; /* x resolution in units/mm */ |
384 | info->y_res = resp[2]; /* y resolution in units/mm */ |
385 | } |
386 | } |
387 | |
388 | if (SYN_EXT_CAP_REQUESTS(info->capabilities) >= 5 && |
389 | SYN_CAP_MAX_DIMENSIONS(info->ext_cap_0c)) { |
390 | error = synaptics_send_cmd(psmouse, |
391 | SYN_QUE_EXT_MAX_COORDS, param: resp); |
392 | if (error) { |
393 | psmouse_warn(psmouse, |
394 | "device claims to have max coordinates query, but I'm not able to read it.\n"); |
395 | } else { |
396 | info->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); |
397 | info->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); |
398 | psmouse_info(psmouse, |
399 | "queried max coordinates: x [..%d], y [..%d]\n", |
400 | info->x_max, info->y_max); |
401 | } |
402 | } |
403 | |
404 | if (SYN_CAP_MIN_DIMENSIONS(info->ext_cap_0c) && |
405 | (SYN_EXT_CAP_REQUESTS(info->capabilities) >= 7 || |
406 | /* |
407 | * Firmware v8.1 does not report proper number of extended |
408 | * capabilities, but has been proven to report correct min |
409 | * coordinates. |
410 | */ |
411 | SYN_ID_FULL(info->identity) == 0x801)) { |
412 | error = synaptics_send_cmd(psmouse, |
413 | SYN_QUE_EXT_MIN_COORDS, param: resp); |
414 | if (error) { |
415 | psmouse_warn(psmouse, |
416 | "device claims to have min coordinates query, but I'm not able to read it.\n"); |
417 | } else { |
418 | info->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); |
419 | info->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); |
420 | psmouse_info(psmouse, |
421 | "queried min coordinates: x [%d..], y [%d..]\n", |
422 | info->x_min, info->y_min); |
423 | } |
424 | } |
425 | |
426 | return 0; |
427 | } |
428 | |
429 | static int synaptics_query_hardware(struct psmouse *psmouse, |
430 | struct synaptics_device_info *info) |
431 | { |
432 | int error; |
433 | |
434 | memset(info, 0, sizeof(*info)); |
435 | |
436 | error = synaptics_identify(psmouse, info); |
437 | if (error) |
438 | return error; |
439 | |
440 | error = synaptics_model_id(psmouse, info); |
441 | if (error) |
442 | return error; |
443 | |
444 | error = synaptics_firmware_id(psmouse, info); |
445 | if (error) |
446 | return error; |
447 | |
448 | error = synaptics_query_modes(psmouse, info); |
449 | if (error) |
450 | return error; |
451 | |
452 | error = synaptics_capability(psmouse, info); |
453 | if (error) |
454 | return error; |
455 | |
456 | error = synaptics_resolution(psmouse, info); |
457 | if (error) |
458 | return error; |
459 | |
460 | return 0; |
461 | } |
462 | |
463 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS || CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS */ |
464 | |
465 | #ifdef CONFIG_MOUSE_PS2_SYNAPTICS |
466 | |
467 | static bool cr48_profile_sensor; |
468 | |
469 | #define ANY_BOARD_ID 0 |
470 | struct min_max_quirk { |
471 | const char * const *pnp_ids; |
472 | struct { |
473 | u32 min, max; |
474 | } board_id; |
475 | u32 x_min, x_max, y_min, y_max; |
476 | }; |
477 | |
478 | static const struct min_max_quirk min_max_pnpid_table[] = { |
479 | { |
480 | (const char * const []){"LEN0033", NULL}, |
481 | {ANY_BOARD_ID, ANY_BOARD_ID}, |
482 | 1024, 5052, 2258, 4832 |
483 | }, |
484 | { |
485 | (const char * const []){"LEN0042", NULL}, |
486 | {ANY_BOARD_ID, ANY_BOARD_ID}, |
487 | 1232, 5710, 1156, 4696 |
488 | }, |
489 | { |
490 | (const char * const []){"LEN0034", "LEN0036", "LEN0037", |
491 | "LEN0039", "LEN2002", "LEN2004", |
492 | NULL}, |
493 | {ANY_BOARD_ID, 2961}, |
494 | 1024, 5112, 2024, 4832 |
495 | }, |
496 | { |
497 | (const char * const []){"LEN2000", NULL}, |
498 | {ANY_BOARD_ID, ANY_BOARD_ID}, |
499 | 1024, 5113, 2021, 4832 |
500 | }, |
501 | { |
502 | (const char * const []){"LEN2001", NULL}, |
503 | {ANY_BOARD_ID, ANY_BOARD_ID}, |
504 | 1024, 5022, 2508, 4832 |
505 | }, |
506 | { |
507 | (const char * const []){"LEN2006", NULL}, |
508 | {2691, 2691}, |
509 | 1024, 5045, 2457, 4832 |
510 | }, |
511 | { |
512 | (const char * const []){"LEN2006", NULL}, |
513 | {ANY_BOARD_ID, ANY_BOARD_ID}, |
514 | 1264, 5675, 1171, 4688 |
515 | }, |
516 | { } |
517 | }; |
518 | |
519 | /***************************************************************************** |
520 | * Synaptics communications functions |
521 | ****************************************************************************/ |
522 | |
523 | /* |
524 | * Synaptics touchpads report the y coordinate from bottom to top, which is |
525 | * opposite from what userspace expects. |
526 | * This function is used to invert y before reporting. |
527 | */ |
528 | static int synaptics_invert_y(int y) |
529 | { |
530 | return YMAX_NOMINAL + YMIN_NOMINAL - y; |
531 | } |
532 | |
533 | /* |
534 | * Apply quirk(s) if the hardware matches |
535 | */ |
536 | static void synaptics_apply_quirks(struct psmouse *psmouse, |
537 | struct synaptics_device_info *info) |
538 | { |
539 | int i; |
540 | |
541 | for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) { |
542 | if (!psmouse_matches_pnp_id(psmouse, |
543 | ids: min_max_pnpid_table[i].pnp_ids)) |
544 | continue; |
545 | |
546 | if (min_max_pnpid_table[i].board_id.min != ANY_BOARD_ID && |
547 | info->board_id < min_max_pnpid_table[i].board_id.min) |
548 | continue; |
549 | |
550 | if (min_max_pnpid_table[i].board_id.max != ANY_BOARD_ID && |
551 | info->board_id > min_max_pnpid_table[i].board_id.max) |
552 | continue; |
553 | |
554 | info->x_min = min_max_pnpid_table[i].x_min; |
555 | info->x_max = min_max_pnpid_table[i].x_max; |
556 | info->y_min = min_max_pnpid_table[i].y_min; |
557 | info->y_max = min_max_pnpid_table[i].y_max; |
558 | psmouse_info(psmouse, |
559 | "quirked min/max coordinates: x [%d..%d], y [%d..%d]\n", |
560 | info->x_min, info->x_max, |
561 | info->y_min, info->y_max); |
562 | break; |
563 | } |
564 | } |
565 | |
566 | static bool synaptics_has_agm(struct synaptics_data *priv) |
567 | { |
568 | return (SYN_CAP_ADV_GESTURE(priv->info.ext_cap_0c) || |
569 | SYN_CAP_IMAGE_SENSOR(priv->info.ext_cap_0c)); |
570 | } |
571 | |
572 | static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse) |
573 | { |
574 | static u8 param = 0xc8; |
575 | int error; |
576 | |
577 | error = ps2_sliced_command(ps2dev: &psmouse->ps2dev, SYN_QUE_MODEL); |
578 | if (error) |
579 | return error; |
580 | |
581 | error = ps2_command(ps2dev: &psmouse->ps2dev, param: ¶m, PSMOUSE_CMD_SETRATE); |
582 | if (error) |
583 | return error; |
584 | |
585 | return 0; |
586 | } |
587 | |
588 | static int synaptics_set_mode(struct psmouse *psmouse) |
589 | { |
590 | struct synaptics_data *priv = psmouse->private; |
591 | int error; |
592 | |
593 | priv->mode = 0; |
594 | if (priv->absolute_mode) |
595 | priv->mode |= SYN_BIT_ABSOLUTE_MODE; |
596 | if (priv->disable_gesture) |
597 | priv->mode |= SYN_BIT_DISABLE_GESTURE; |
598 | if (psmouse->rate >= 80) |
599 | priv->mode |= SYN_BIT_HIGH_RATE; |
600 | if (SYN_CAP_EXTENDED(priv->info.capabilities)) |
601 | priv->mode |= SYN_BIT_W_MODE; |
602 | |
603 | error = synaptics_mode_cmd(psmouse, mode: priv->mode); |
604 | if (error) |
605 | return error; |
606 | |
607 | if (priv->absolute_mode && synaptics_has_agm(priv)) { |
608 | error = synaptics_set_advanced_gesture_mode(psmouse); |
609 | if (error) { |
610 | psmouse_err(psmouse, |
611 | "Advanced gesture mode init failed: %d\n", |
612 | error); |
613 | return error; |
614 | } |
615 | } |
616 | |
617 | return 0; |
618 | } |
619 | |
620 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) |
621 | { |
622 | struct synaptics_data *priv = psmouse->private; |
623 | |
624 | if (rate >= 80) { |
625 | priv->mode |= SYN_BIT_HIGH_RATE; |
626 | psmouse->rate = 80; |
627 | } else { |
628 | priv->mode &= ~SYN_BIT_HIGH_RATE; |
629 | psmouse->rate = 40; |
630 | } |
631 | |
632 | synaptics_mode_cmd(psmouse, mode: priv->mode); |
633 | } |
634 | |
635 | /***************************************************************************** |
636 | * Synaptics pass-through PS/2 port support |
637 | ****************************************************************************/ |
638 | static int synaptics_pt_write(struct serio *serio, u8 c) |
639 | { |
640 | struct psmouse *parent = psmouse_from_serio(serio: serio->parent); |
641 | u8 rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ |
642 | int error; |
643 | |
644 | error = ps2_sliced_command(ps2dev: &parent->ps2dev, command: c); |
645 | if (error) |
646 | return error; |
647 | |
648 | error = ps2_command(ps2dev: &parent->ps2dev, param: &rate_param, PSMOUSE_CMD_SETRATE); |
649 | if (error) |
650 | return error; |
651 | |
652 | return 0; |
653 | } |
654 | |
655 | static int synaptics_pt_start(struct serio *serio) |
656 | { |
657 | struct psmouse *parent = psmouse_from_serio(serio: serio->parent); |
658 | struct synaptics_data *priv = parent->private; |
659 | |
660 | guard(serio_pause_rx)(T: parent->ps2dev.serio); |
661 | priv->pt_port = serio; |
662 | |
663 | return 0; |
664 | } |
665 | |
666 | static void synaptics_pt_stop(struct serio *serio) |
667 | { |
668 | struct psmouse *parent = psmouse_from_serio(serio: serio->parent); |
669 | struct synaptics_data *priv = parent->private; |
670 | |
671 | guard(serio_pause_rx)(T: parent->ps2dev.serio); |
672 | priv->pt_port = NULL; |
673 | } |
674 | |
675 | static int synaptics_pt_open(struct serio *serio) |
676 | { |
677 | struct psmouse *parent = psmouse_from_serio(serio: serio->parent); |
678 | struct synaptics_data *priv = parent->private; |
679 | |
680 | guard(serio_pause_rx)(T: parent->ps2dev.serio); |
681 | priv->pt_port_open = true; |
682 | |
683 | return 0; |
684 | } |
685 | |
686 | static void synaptics_pt_close(struct serio *serio) |
687 | { |
688 | struct psmouse *parent = psmouse_from_serio(serio: serio->parent); |
689 | struct synaptics_data *priv = parent->private; |
690 | |
691 | guard(serio_pause_rx)(T: parent->ps2dev.serio); |
692 | priv->pt_port_open = false; |
693 | } |
694 | |
695 | static int synaptics_is_pt_packet(u8 *buf) |
696 | { |
697 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; |
698 | } |
699 | |
700 | static void synaptics_pass_pt_packet(struct synaptics_data *priv, u8 *packet) |
701 | { |
702 | struct serio *ptport; |
703 | |
704 | ptport = priv->pt_port; |
705 | if (!ptport) |
706 | return; |
707 | |
708 | serio_interrupt(serio: ptport, data: packet[1], flags: 0); |
709 | |
710 | if (priv->pt_port_open) { |
711 | struct psmouse *child = psmouse_from_serio(serio: ptport); |
712 | |
713 | if (child->state == PSMOUSE_ACTIVATED) { |
714 | serio_interrupt(serio: ptport, data: packet[4], flags: 0); |
715 | serio_interrupt(serio: ptport, data: packet[5], flags: 0); |
716 | if (child->pktsize == 4) |
717 | serio_interrupt(serio: ptport, data: packet[2], flags: 0); |
718 | } |
719 | } |
720 | } |
721 | |
722 | static void synaptics_pt_activate(struct psmouse *psmouse) |
723 | { |
724 | struct synaptics_data *priv = psmouse->private; |
725 | struct psmouse *child = psmouse_from_serio(serio: priv->pt_port); |
726 | |
727 | /* adjust the touchpad to child's choice of protocol */ |
728 | if (child) { |
729 | if (child->pktsize == 4) |
730 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
731 | else |
732 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; |
733 | |
734 | if (synaptics_mode_cmd(psmouse, mode: priv->mode)) |
735 | psmouse_warn(psmouse, |
736 | "failed to switch guest protocol\n"); |
737 | } |
738 | } |
739 | |
740 | static void synaptics_pt_create(struct psmouse *psmouse) |
741 | { |
742 | struct serio *serio; |
743 | |
744 | serio = kzalloc(sizeof(*serio), GFP_KERNEL); |
745 | if (!serio) { |
746 | psmouse_err(psmouse, |
747 | "not enough memory for pass-through port\n"); |
748 | return; |
749 | } |
750 | |
751 | serio->id.type = SERIO_PS_PSTHRU; |
752 | strscpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); |
753 | strscpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->phys)); |
754 | serio->write = synaptics_pt_write; |
755 | serio->start = synaptics_pt_start; |
756 | serio->stop = synaptics_pt_stop; |
757 | serio->open = synaptics_pt_open; |
758 | serio->close = synaptics_pt_close; |
759 | serio->parent = psmouse->ps2dev.serio; |
760 | |
761 | psmouse->pt_activate = synaptics_pt_activate; |
762 | |
763 | psmouse_info(psmouse, "serio: %s port at %s\n", |
764 | serio->name, psmouse->phys); |
765 | serio_register_port(serio); |
766 | } |
767 | |
768 | /***************************************************************************** |
769 | * Functions to interpret the absolute mode packets |
770 | ****************************************************************************/ |
771 | |
772 | static void synaptics_parse_agm(const u8 buf[], |
773 | struct synaptics_data *priv, |
774 | struct synaptics_hw_state *hw) |
775 | { |
776 | struct synaptics_hw_state *agm = &priv->agm; |
777 | int agm_packet_type; |
778 | |
779 | agm_packet_type = (buf[5] & 0x30) >> 4; |
780 | switch (agm_packet_type) { |
781 | case 1: |
782 | /* Gesture packet: (x, y, z) half resolution */ |
783 | agm->w = hw->w; |
784 | agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1; |
785 | agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1; |
786 | agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1; |
787 | break; |
788 | |
789 | case 2: |
790 | /* AGM-CONTACT packet: we are only interested in the count */ |
791 | priv->agm_count = buf[1]; |
792 | break; |
793 | |
794 | default: |
795 | break; |
796 | } |
797 | } |
798 | |
799 | static void synaptics_parse_ext_buttons(const u8 buf[], |
800 | struct synaptics_data *priv, |
801 | struct synaptics_hw_state *hw) |
802 | { |
803 | unsigned int ext_bits = |
804 | (SYN_CAP_MULTI_BUTTON_NO(priv->info.ext_cap) + 1) >> 1; |
805 | unsigned int ext_mask = GENMASK(ext_bits - 1, 0); |
806 | |
807 | hw->ext_buttons = buf[4] & ext_mask; |
808 | hw->ext_buttons |= (buf[5] & ext_mask) << ext_bits; |
809 | } |
810 | |
811 | static int synaptics_parse_hw_state(const u8 buf[], |
812 | struct synaptics_data *priv, |
813 | struct synaptics_hw_state *hw) |
814 | { |
815 | memset(hw, 0, sizeof(struct synaptics_hw_state)); |
816 | |
817 | if (SYN_MODEL_NEWABS(priv->info.model_id)) { |
818 | hw->w = (((buf[0] & 0x30) >> 2) | |
819 | ((buf[0] & 0x04) >> 1) | |
820 | ((buf[3] & 0x04) >> 2)); |
821 | |
822 | if (synaptics_has_agm(priv) && hw->w == 2) { |
823 | synaptics_parse_agm(buf, priv, hw); |
824 | return 1; |
825 | } |
826 | |
827 | hw->x = (((buf[3] & 0x10) << 8) | |
828 | ((buf[1] & 0x0f) << 8) | |
829 | buf[4]); |
830 | hw->y = (((buf[3] & 0x20) << 7) | |
831 | ((buf[1] & 0xf0) << 4) | |
832 | buf[5]); |
833 | hw->z = buf[2]; |
834 | |
835 | hw->left = (buf[0] & 0x01) ? 1 : 0; |
836 | hw->right = (buf[0] & 0x02) ? 1 : 0; |
837 | |
838 | if (priv->is_forcepad) { |
839 | /* |
840 | * ForcePads, like Clickpads, use middle button |
841 | * bits to report primary button clicks. |
842 | * Unfortunately they report primary button not |
843 | * only when user presses on the pad above certain |
844 | * threshold, but also when there are more than one |
845 | * finger on the touchpad, which interferes with |
846 | * out multi-finger gestures. |
847 | */ |
848 | if (hw->z == 0) { |
849 | /* No contacts */ |
850 | priv->press = priv->report_press = false; |
851 | } else if (hw->w >= 4 && ((buf[0] ^ buf[3]) & 0x01)) { |
852 | /* |
853 | * Single-finger touch with pressure above |
854 | * the threshold. If pressure stays long |
855 | * enough, we'll start reporting primary |
856 | * button. We rely on the device continuing |
857 | * sending data even if finger does not |
858 | * move. |
859 | */ |
860 | if (!priv->press) { |
861 | priv->press_start = jiffies; |
862 | priv->press = true; |
863 | } else if (time_after(jiffies, |
864 | priv->press_start + |
865 | msecs_to_jiffies(50))) { |
866 | priv->report_press = true; |
867 | } |
868 | } else { |
869 | priv->press = false; |
870 | } |
871 | |
872 | hw->left = priv->report_press; |
873 | |
874 | } else if (SYN_CAP_CLICKPAD(priv->info.ext_cap_0c)) { |
875 | /* |
876 | * Clickpad's button is transmitted as middle button, |
877 | * however, since it is primary button, we will report |
878 | * it as BTN_LEFT. |
879 | */ |
880 | hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
881 | |
882 | } else if (SYN_CAP_MIDDLE_BUTTON(priv->info.capabilities)) { |
883 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
884 | if (hw->w == 2) |
885 | hw->scroll = (s8)buf[1]; |
886 | } |
887 | |
888 | if (SYN_CAP_FOUR_BUTTON(priv->info.capabilities)) { |
889 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
890 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; |
891 | } |
892 | |
893 | if (SYN_CAP_MULTI_BUTTON_NO(priv->info.ext_cap) > 0 && |
894 | ((buf[0] ^ buf[3]) & 0x02)) { |
895 | synaptics_parse_ext_buttons(buf, priv, hw); |
896 | } |
897 | } else { |
898 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); |
899 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); |
900 | |
901 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); |
902 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); |
903 | |
904 | hw->left = (buf[0] & 0x01) ? 1 : 0; |
905 | hw->right = (buf[0] & 0x02) ? 1 : 0; |
906 | } |
907 | |
908 | /* |
909 | * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE |
910 | * is used by some firmware to indicate a finger at the edge of |
911 | * the touchpad whose precise position cannot be determined, so |
912 | * convert these values to the maximum axis value. |
913 | */ |
914 | if (hw->x > X_MAX_POSITIVE) |
915 | hw->x -= 1 << ABS_POS_BITS; |
916 | else if (hw->x == X_MAX_POSITIVE) |
917 | hw->x = XMAX; |
918 | |
919 | if (hw->y > Y_MAX_POSITIVE) |
920 | hw->y -= 1 << ABS_POS_BITS; |
921 | else if (hw->y == Y_MAX_POSITIVE) |
922 | hw->y = YMAX; |
923 | |
924 | return 0; |
925 | } |
926 | |
927 | static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot, |
928 | bool active, int x, int y) |
929 | { |
930 | input_mt_slot(dev, slot); |
931 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); |
932 | if (active) { |
933 | input_report_abs(dev, ABS_MT_POSITION_X, value: x); |
934 | input_report_abs(dev, ABS_MT_POSITION_Y, value: synaptics_invert_y(y)); |
935 | } |
936 | } |
937 | |
938 | static void synaptics_report_semi_mt_data(struct input_dev *dev, |
939 | const struct synaptics_hw_state *a, |
940 | const struct synaptics_hw_state *b, |
941 | int num_fingers) |
942 | { |
943 | if (num_fingers >= 2) { |
944 | synaptics_report_semi_mt_slot(dev, slot: 0, active: true, min(a->x, b->x), |
945 | min(a->y, b->y)); |
946 | synaptics_report_semi_mt_slot(dev, slot: 1, active: true, max(a->x, b->x), |
947 | max(a->y, b->y)); |
948 | } else if (num_fingers == 1) { |
949 | synaptics_report_semi_mt_slot(dev, slot: 0, active: true, x: a->x, y: a->y); |
950 | synaptics_report_semi_mt_slot(dev, slot: 1, active: false, x: 0, y: 0); |
951 | } else { |
952 | synaptics_report_semi_mt_slot(dev, slot: 0, active: false, x: 0, y: 0); |
953 | synaptics_report_semi_mt_slot(dev, slot: 1, active: false, x: 0, y: 0); |
954 | } |
955 | } |
956 | |
957 | static void synaptics_report_ext_buttons(struct psmouse *psmouse, |
958 | const struct synaptics_hw_state *hw) |
959 | { |
960 | struct input_dev *dev = psmouse->dev; |
961 | struct synaptics_data *priv = psmouse->private; |
962 | int ext_bits = (SYN_CAP_MULTI_BUTTON_NO(priv->info.ext_cap) + 1) >> 1; |
963 | int i; |
964 | |
965 | if (!SYN_CAP_MULTI_BUTTON_NO(priv->info.ext_cap)) |
966 | return; |
967 | |
968 | /* Bug in FW 8.1 & 8.2, buttons are reported only when ExtBit is 1 */ |
969 | if ((SYN_ID_FULL(priv->info.identity) == 0x801 || |
970 | SYN_ID_FULL(priv->info.identity) == 0x802) && |
971 | !((psmouse->packet[0] ^ psmouse->packet[3]) & 0x02)) |
972 | return; |
973 | |
974 | if (!SYN_CAP_EXT_BUTTONS_STICK(priv->info.ext_cap_10)) { |
975 | for (i = 0; i < ext_bits; i++) { |
976 | input_report_key(dev, BTN_0 + 2 * i, |
977 | value: hw->ext_buttons & BIT(i)); |
978 | input_report_key(dev, BTN_1 + 2 * i, |
979 | value: hw->ext_buttons & BIT(i + ext_bits)); |
980 | } |
981 | return; |
982 | } |
983 | |
984 | /* |
985 | * This generation of touchpads has the trackstick buttons |
986 | * physically wired to the touchpad. Re-route them through |
987 | * the pass-through interface. |
988 | */ |
989 | if (priv->pt_port) { |
990 | u8 pt_buttons; |
991 | |
992 | /* The trackstick expects at most 3 buttons */ |
993 | pt_buttons = SYN_EXT_BUTTON_STICK_L(hw->ext_buttons) | |
994 | SYN_EXT_BUTTON_STICK_R(hw->ext_buttons) << 1 | |
995 | SYN_EXT_BUTTON_STICK_M(hw->ext_buttons) << 2; |
996 | |
997 | serio_interrupt(serio: priv->pt_port, |
998 | PSMOUSE_OOB_EXTRA_BTNS, SERIO_OOB_DATA); |
999 | serio_interrupt(serio: priv->pt_port, data: pt_buttons, SERIO_OOB_DATA); |
1000 | } |
1001 | } |
1002 | |
1003 | static void synaptics_report_buttons(struct psmouse *psmouse, |
1004 | const struct synaptics_hw_state *hw) |
1005 | { |
1006 | struct input_dev *dev = psmouse->dev; |
1007 | struct synaptics_data *priv = psmouse->private; |
1008 | |
1009 | input_report_key(dev, BTN_LEFT, value: hw->left); |
1010 | input_report_key(dev, BTN_RIGHT, value: hw->right); |
1011 | |
1012 | if (SYN_CAP_MIDDLE_BUTTON(priv->info.capabilities)) |
1013 | input_report_key(dev, BTN_MIDDLE, value: hw->middle); |
1014 | |
1015 | if (SYN_CAP_FOUR_BUTTON(priv->info.capabilities)) { |
1016 | input_report_key(dev, BTN_FORWARD, value: hw->up); |
1017 | input_report_key(dev, BTN_BACK, value: hw->down); |
1018 | } |
1019 | |
1020 | synaptics_report_ext_buttons(psmouse, hw); |
1021 | } |
1022 | |
1023 | static void synaptics_report_mt_data(struct psmouse *psmouse, |
1024 | const struct synaptics_hw_state *sgm, |
1025 | int num_fingers) |
1026 | { |
1027 | struct input_dev *dev = psmouse->dev; |
1028 | struct synaptics_data *priv = psmouse->private; |
1029 | const struct synaptics_hw_state *hw[2] = { sgm, &priv->agm }; |
1030 | struct input_mt_pos pos[2]; |
1031 | int slot[2], nsemi, i; |
1032 | |
1033 | nsemi = clamp_val(num_fingers, 0, 2); |
1034 | |
1035 | for (i = 0; i < nsemi; i++) { |
1036 | pos[i].x = hw[i]->x; |
1037 | pos[i].y = synaptics_invert_y(y: hw[i]->y); |
1038 | } |
1039 | |
1040 | input_mt_assign_slots(dev, slots: slot, pos, num_pos: nsemi, DMAX * priv->info.x_res); |
1041 | |
1042 | for (i = 0; i < nsemi; i++) { |
1043 | input_mt_slot(dev, slot: slot[i]); |
1044 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active: true); |
1045 | input_report_abs(dev, ABS_MT_POSITION_X, value: pos[i].x); |
1046 | input_report_abs(dev, ABS_MT_POSITION_Y, value: pos[i].y); |
1047 | input_report_abs(dev, ABS_MT_PRESSURE, value: hw[i]->z); |
1048 | } |
1049 | |
1050 | input_mt_drop_unused(dev); |
1051 | |
1052 | /* Don't use active slot count to generate BTN_TOOL events. */ |
1053 | input_mt_report_pointer_emulation(dev, use_count: false); |
1054 | |
1055 | /* Send the number of fingers reported by touchpad itself. */ |
1056 | input_mt_report_finger_count(dev, count: num_fingers); |
1057 | |
1058 | synaptics_report_buttons(psmouse, hw: sgm); |
1059 | |
1060 | input_sync(dev); |
1061 | } |
1062 | |
1063 | static void synaptics_image_sensor_process(struct psmouse *psmouse, |
1064 | struct synaptics_hw_state *sgm) |
1065 | { |
1066 | struct synaptics_data *priv = psmouse->private; |
1067 | int num_fingers; |
1068 | |
1069 | /* |
1070 | * Update mt_state using the new finger count and current mt_state. |
1071 | */ |
1072 | if (sgm->z == 0) |
1073 | num_fingers = 0; |
1074 | else if (sgm->w >= 4) |
1075 | num_fingers = 1; |
1076 | else if (sgm->w == 0) |
1077 | num_fingers = 2; |
1078 | else if (sgm->w == 1) |
1079 | num_fingers = priv->agm_count ? priv->agm_count : 3; |
1080 | else |
1081 | num_fingers = 4; |
1082 | |
1083 | /* Send resulting input events to user space */ |
1084 | synaptics_report_mt_data(psmouse, sgm, num_fingers); |
1085 | } |
1086 | |
1087 | static bool synaptics_has_multifinger(struct synaptics_data *priv) |
1088 | { |
1089 | if (SYN_CAP_MULTIFINGER(priv->info.capabilities)) |
1090 | return true; |
1091 | |
1092 | /* Advanced gesture mode also sends multi finger data */ |
1093 | return synaptics_has_agm(priv); |
1094 | } |
1095 | |
1096 | /* |
1097 | * called for each full received packet from the touchpad |
1098 | */ |
1099 | static void synaptics_process_packet(struct psmouse *psmouse) |
1100 | { |
1101 | struct input_dev *dev = psmouse->dev; |
1102 | struct synaptics_data *priv = psmouse->private; |
1103 | struct synaptics_device_info *info = &priv->info; |
1104 | struct synaptics_hw_state hw; |
1105 | int num_fingers; |
1106 | int finger_width; |
1107 | |
1108 | if (synaptics_parse_hw_state(buf: psmouse->packet, priv, hw: &hw)) |
1109 | return; |
1110 | |
1111 | if (SYN_CAP_IMAGE_SENSOR(info->ext_cap_0c)) { |
1112 | synaptics_image_sensor_process(psmouse, sgm: &hw); |
1113 | return; |
1114 | } |
1115 | |
1116 | if (hw.scroll) { |
1117 | priv->scroll += hw.scroll; |
1118 | |
1119 | while (priv->scroll >= 4) { |
1120 | input_report_key(dev, BTN_BACK, value: !hw.down); |
1121 | input_sync(dev); |
1122 | input_report_key(dev, BTN_BACK, value: hw.down); |
1123 | input_sync(dev); |
1124 | priv->scroll -= 4; |
1125 | } |
1126 | while (priv->scroll <= -4) { |
1127 | input_report_key(dev, BTN_FORWARD, value: !hw.up); |
1128 | input_sync(dev); |
1129 | input_report_key(dev, BTN_FORWARD, value: hw.up); |
1130 | input_sync(dev); |
1131 | priv->scroll += 4; |
1132 | } |
1133 | return; |
1134 | } |
1135 | |
1136 | if (hw.z > 0 && hw.x > 1) { |
1137 | num_fingers = 1; |
1138 | finger_width = 5; |
1139 | if (SYN_CAP_EXTENDED(info->capabilities)) { |
1140 | switch (hw.w) { |
1141 | case 0 ... 1: |
1142 | if (synaptics_has_multifinger(priv)) |
1143 | num_fingers = hw.w + 2; |
1144 | break; |
1145 | case 2: |
1146 | /* |
1147 | * SYN_MODEL_PEN(info->model_id): even if |
1148 | * the device supports pen, we treat it as |
1149 | * a single finger. |
1150 | */ |
1151 | break; |
1152 | case 4 ... 15: |
1153 | if (SYN_CAP_PALMDETECT(info->capabilities)) |
1154 | finger_width = hw.w; |
1155 | break; |
1156 | } |
1157 | } |
1158 | } else { |
1159 | num_fingers = 0; |
1160 | finger_width = 0; |
1161 | } |
1162 | |
1163 | if (cr48_profile_sensor) { |
1164 | synaptics_report_mt_data(psmouse, sgm: &hw, num_fingers); |
1165 | return; |
1166 | } |
1167 | |
1168 | if (SYN_CAP_ADV_GESTURE(info->ext_cap_0c)) |
1169 | synaptics_report_semi_mt_data(dev, a: &hw, b: &priv->agm, |
1170 | num_fingers); |
1171 | |
1172 | /* Post events |
1173 | * BTN_TOUCH has to be first as mousedev relies on it when doing |
1174 | * absolute -> relative conversion |
1175 | */ |
1176 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, value: 1); |
1177 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, value: 0); |
1178 | |
1179 | if (num_fingers > 0) { |
1180 | input_report_abs(dev, ABS_X, value: hw.x); |
1181 | input_report_abs(dev, ABS_Y, value: synaptics_invert_y(y: hw.y)); |
1182 | } |
1183 | input_report_abs(dev, ABS_PRESSURE, value: hw.z); |
1184 | |
1185 | if (SYN_CAP_PALMDETECT(info->capabilities)) |
1186 | input_report_abs(dev, ABS_TOOL_WIDTH, value: finger_width); |
1187 | |
1188 | input_report_key(dev, BTN_TOOL_FINGER, value: num_fingers == 1); |
1189 | if (synaptics_has_multifinger(priv)) { |
1190 | input_report_key(dev, BTN_TOOL_DOUBLETAP, value: num_fingers == 2); |
1191 | input_report_key(dev, BTN_TOOL_TRIPLETAP, value: num_fingers == 3); |
1192 | } |
1193 | |
1194 | synaptics_report_buttons(psmouse, hw: &hw); |
1195 | |
1196 | input_sync(dev); |
1197 | } |
1198 | |
1199 | static bool synaptics_validate_byte(struct psmouse *psmouse, |
1200 | int idx, enum synaptics_pkt_type pkt_type) |
1201 | { |
1202 | static const u8 newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; |
1203 | static const u8 newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; |
1204 | static const u8 newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; |
1205 | static const u8 oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; |
1206 | static const u8 oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; |
1207 | const u8 *packet = psmouse->packet; |
1208 | |
1209 | if (idx < 0 || idx > 4) |
1210 | return false; |
1211 | |
1212 | switch (pkt_type) { |
1213 | |
1214 | case SYN_NEWABS: |
1215 | case SYN_NEWABS_RELAXED: |
1216 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; |
1217 | |
1218 | case SYN_NEWABS_STRICT: |
1219 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; |
1220 | |
1221 | case SYN_OLDABS: |
1222 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; |
1223 | |
1224 | default: |
1225 | psmouse_err(psmouse, "unknown packet type %d\n", pkt_type); |
1226 | return false; |
1227 | } |
1228 | } |
1229 | |
1230 | static enum synaptics_pkt_type |
1231 | synaptics_detect_pkt_type(struct psmouse *psmouse) |
1232 | { |
1233 | int i; |
1234 | |
1235 | for (i = 0; i < 5; i++) { |
1236 | if (!synaptics_validate_byte(psmouse, idx: i, pkt_type: SYN_NEWABS_STRICT)) { |
1237 | psmouse_info(psmouse, "using relaxed packet validation\n"); |
1238 | return SYN_NEWABS_RELAXED; |
1239 | } |
1240 | } |
1241 | |
1242 | return SYN_NEWABS_STRICT; |
1243 | } |
1244 | |
1245 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) |
1246 | { |
1247 | struct synaptics_data *priv = psmouse->private; |
1248 | |
1249 | if (psmouse->pktcnt >= 6) { /* Full packet received */ |
1250 | if (unlikely(priv->pkt_type == SYN_NEWABS)) |
1251 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); |
1252 | |
1253 | if (SYN_CAP_PASS_THROUGH(priv->info.capabilities) && |
1254 | synaptics_is_pt_packet(buf: psmouse->packet)) { |
1255 | synaptics_pass_pt_packet(priv, packet: psmouse->packet); |
1256 | } else { |
1257 | synaptics_process_packet(psmouse); |
1258 | } |
1259 | |
1260 | return PSMOUSE_FULL_PACKET; |
1261 | } |
1262 | |
1263 | return synaptics_validate_byte(psmouse, idx: psmouse->pktcnt - 1, pkt_type: priv->pkt_type) ? |
1264 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; |
1265 | } |
1266 | |
1267 | /***************************************************************************** |
1268 | * Driver initialization/cleanup functions |
1269 | ****************************************************************************/ |
1270 | static void set_abs_position_params(struct input_dev *dev, |
1271 | struct synaptics_device_info *info, |
1272 | int x_code, int y_code) |
1273 | { |
1274 | int x_min = info->x_min ?: XMIN_NOMINAL; |
1275 | int x_max = info->x_max ?: XMAX_NOMINAL; |
1276 | int y_min = info->y_min ?: YMIN_NOMINAL; |
1277 | int y_max = info->y_max ?: YMAX_NOMINAL; |
1278 | int fuzz = SYN_CAP_REDUCED_FILTERING(info->ext_cap_0c) ? |
1279 | SYN_REDUCED_FILTER_FUZZ : 0; |
1280 | |
1281 | input_set_abs_params(dev, axis: x_code, min: x_min, max: x_max, fuzz, flat: 0); |
1282 | input_set_abs_params(dev, axis: y_code, min: y_min, max: y_max, fuzz, flat: 0); |
1283 | input_abs_set_res(dev, axis: x_code, val: info->x_res); |
1284 | input_abs_set_res(dev, axis: y_code, val: info->y_res); |
1285 | } |
1286 | |
1287 | static int set_input_params(struct psmouse *psmouse, |
1288 | struct synaptics_data *priv) |
1289 | { |
1290 | struct input_dev *dev = psmouse->dev; |
1291 | struct synaptics_device_info *info = &priv->info; |
1292 | int i; |
1293 | int error; |
1294 | |
1295 | /* Reset default psmouse capabilities */ |
1296 | __clear_bit(EV_REL, dev->evbit); |
1297 | bitmap_zero(dst: dev->relbit, REL_CNT); |
1298 | bitmap_zero(dst: dev->keybit, KEY_CNT); |
1299 | |
1300 | /* Things that apply to both modes */ |
1301 | __set_bit(INPUT_PROP_POINTER, dev->propbit); |
1302 | |
1303 | input_set_capability(dev, EV_KEY, BTN_LEFT); |
1304 | |
1305 | /* Clickpads report only left button */ |
1306 | if (!SYN_CAP_CLICKPAD(info->ext_cap_0c)) { |
1307 | input_set_capability(dev, EV_KEY, BTN_RIGHT); |
1308 | if (SYN_CAP_MIDDLE_BUTTON(info->capabilities)) |
1309 | input_set_capability(dev, EV_KEY, BTN_MIDDLE); |
1310 | } |
1311 | |
1312 | if (!priv->absolute_mode) { |
1313 | /* Relative mode */ |
1314 | input_set_capability(dev, EV_REL, REL_X); |
1315 | input_set_capability(dev, EV_REL, REL_Y); |
1316 | return 0; |
1317 | } |
1318 | |
1319 | /* Absolute mode */ |
1320 | set_abs_position_params(dev, info: &priv->info, ABS_X, ABS_Y); |
1321 | input_set_abs_params(dev, ABS_PRESSURE, min: 0, max: 255, fuzz: 0, flat: 0); |
1322 | |
1323 | if (cr48_profile_sensor) |
1324 | input_set_abs_params(dev, ABS_MT_PRESSURE, min: 0, max: 255, fuzz: 0, flat: 0); |
1325 | |
1326 | if (SYN_CAP_IMAGE_SENSOR(info->ext_cap_0c)) { |
1327 | set_abs_position_params(dev, info, |
1328 | ABS_MT_POSITION_X, ABS_MT_POSITION_Y); |
1329 | /* Image sensors can report per-contact pressure */ |
1330 | input_set_abs_params(dev, ABS_MT_PRESSURE, min: 0, max: 255, fuzz: 0, flat: 0); |
1331 | |
1332 | error = input_mt_init_slots(dev, num_slots: 2, |
1333 | INPUT_MT_POINTER | INPUT_MT_TRACK); |
1334 | if (error) |
1335 | return error; |
1336 | |
1337 | /* Image sensors can signal 4 and 5 finger clicks */ |
1338 | input_set_capability(dev, EV_KEY, BTN_TOOL_QUADTAP); |
1339 | input_set_capability(dev, EV_KEY, BTN_TOOL_QUINTTAP); |
1340 | } else if (SYN_CAP_ADV_GESTURE(info->ext_cap_0c)) { |
1341 | set_abs_position_params(dev, info, |
1342 | ABS_MT_POSITION_X, ABS_MT_POSITION_Y); |
1343 | /* |
1344 | * Profile sensor in CR-48 tracks contacts reasonably well, |
1345 | * other non-image sensors with AGM use semi-mt. |
1346 | */ |
1347 | error = input_mt_init_slots(dev, num_slots: 2, |
1348 | INPUT_MT_POINTER | |
1349 | (cr48_profile_sensor ? |
1350 | INPUT_MT_TRACK : |
1351 | INPUT_MT_SEMI_MT)); |
1352 | if (error) |
1353 | return error; |
1354 | |
1355 | /* |
1356 | * For semi-mt devices we send ABS_X/Y ourselves instead of |
1357 | * input_mt_report_pointer_emulation. But |
1358 | * input_mt_init_slots() resets the fuzz to 0, leading to a |
1359 | * filtered ABS_MT_POSITION_X but an unfiltered ABS_X |
1360 | * position. Let's re-initialize ABS_X/Y here. |
1361 | */ |
1362 | if (!cr48_profile_sensor) |
1363 | set_abs_position_params(dev, info: &priv->info, ABS_X, ABS_Y); |
1364 | } |
1365 | |
1366 | if (SYN_CAP_PALMDETECT(info->capabilities)) |
1367 | input_set_abs_params(dev, ABS_TOOL_WIDTH, min: 0, max: 15, fuzz: 0, flat: 0); |
1368 | |
1369 | input_set_capability(dev, EV_KEY, BTN_TOUCH); |
1370 | input_set_capability(dev, EV_KEY, BTN_TOOL_FINGER); |
1371 | |
1372 | if (synaptics_has_multifinger(priv)) { |
1373 | input_set_capability(dev, EV_KEY, BTN_TOOL_DOUBLETAP); |
1374 | input_set_capability(dev, EV_KEY, BTN_TOOL_TRIPLETAP); |
1375 | } |
1376 | |
1377 | if (SYN_CAP_FOUR_BUTTON(info->capabilities) || |
1378 | SYN_CAP_MIDDLE_BUTTON(info->capabilities)) { |
1379 | input_set_capability(dev, EV_KEY, BTN_FORWARD); |
1380 | input_set_capability(dev, EV_KEY, BTN_BACK); |
1381 | } |
1382 | |
1383 | if (!SYN_CAP_EXT_BUTTONS_STICK(info->ext_cap_10)) |
1384 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(info->ext_cap); i++) |
1385 | input_set_capability(dev, EV_KEY, BTN_0 + i); |
1386 | |
1387 | if (SYN_CAP_CLICKPAD(info->ext_cap_0c)) { |
1388 | __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); |
1389 | if (psmouse_matches_pnp_id(psmouse, ids: topbuttonpad_pnp_ids) && |
1390 | !SYN_CAP_EXT_BUTTONS_STICK(info->ext_cap_10)) |
1391 | __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit); |
1392 | } |
1393 | |
1394 | return 0; |
1395 | } |
1396 | |
1397 | static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse, |
1398 | void *data, char *buf) |
1399 | { |
1400 | struct synaptics_data *priv = psmouse->private; |
1401 | |
1402 | return sprintf(buf, fmt: "%c\n", priv->disable_gesture ? '1' : '0'); |
1403 | } |
1404 | |
1405 | static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse, |
1406 | void *data, const char *buf, |
1407 | size_t len) |
1408 | { |
1409 | struct synaptics_data *priv = psmouse->private; |
1410 | unsigned int value; |
1411 | int err; |
1412 | |
1413 | err = kstrtouint(s: buf, base: 10, res: &value); |
1414 | if (err) |
1415 | return err; |
1416 | |
1417 | if (value > 1) |
1418 | return -EINVAL; |
1419 | |
1420 | if (value == priv->disable_gesture) |
1421 | return len; |
1422 | |
1423 | priv->disable_gesture = value; |
1424 | if (value) |
1425 | priv->mode |= SYN_BIT_DISABLE_GESTURE; |
1426 | else |
1427 | priv->mode &= ~SYN_BIT_DISABLE_GESTURE; |
1428 | |
1429 | if (synaptics_mode_cmd(psmouse, mode: priv->mode)) |
1430 | return -EIO; |
1431 | |
1432 | return len; |
1433 | } |
1434 | |
1435 | PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL, |
1436 | synaptics_show_disable_gesture, |
1437 | synaptics_set_disable_gesture); |
1438 | |
1439 | static void synaptics_disconnect(struct psmouse *psmouse) |
1440 | { |
1441 | struct synaptics_data *priv = psmouse->private; |
1442 | |
1443 | /* |
1444 | * We might have left a breadcrumb when trying to |
1445 | * set up SMbus companion. |
1446 | */ |
1447 | psmouse_smbus_cleanup(psmouse); |
1448 | |
1449 | if (!priv->absolute_mode && |
1450 | SYN_ID_DISGEST_SUPPORTED(priv->info.identity)) |
1451 | device_remove_file(dev: &psmouse->ps2dev.serio->dev, |
1452 | attr: &psmouse_attr_disable_gesture.dattr); |
1453 | |
1454 | synaptics_reset(psmouse); |
1455 | kfree(objp: priv); |
1456 | psmouse->private = NULL; |
1457 | } |
1458 | |
1459 | static int synaptics_reconnect(struct psmouse *psmouse) |
1460 | { |
1461 | struct synaptics_data *priv = psmouse->private; |
1462 | struct synaptics_device_info info; |
1463 | u8 param[2]; |
1464 | int retry = 0; |
1465 | int error; |
1466 | |
1467 | do { |
1468 | psmouse_reset(psmouse); |
1469 | if (retry) { |
1470 | /* |
1471 | * On some boxes, right after resuming, the touchpad |
1472 | * needs some time to finish initializing (I assume |
1473 | * it needs time to calibrate) and start responding |
1474 | * to Synaptics-specific queries, so let's wait a |
1475 | * bit. |
1476 | */ |
1477 | ssleep(seconds: 1); |
1478 | } |
1479 | ps2_command(ps2dev: &psmouse->ps2dev, param, PSMOUSE_CMD_GETID); |
1480 | error = synaptics_detect(psmouse, set_properties: 0); |
1481 | } while (error && ++retry < 3); |
1482 | |
1483 | if (error) |
1484 | return error; |
1485 | |
1486 | if (retry > 1) |
1487 | psmouse_dbg(psmouse, "reconnected after %d tries\n", retry); |
1488 | |
1489 | error = synaptics_query_hardware(psmouse, info: &info); |
1490 | if (error) { |
1491 | psmouse_err(psmouse, "Unable to query device.\n"); |
1492 | return error; |
1493 | } |
1494 | |
1495 | error = synaptics_set_mode(psmouse); |
1496 | if (error) { |
1497 | psmouse_err(psmouse, "Unable to initialize device.\n"); |
1498 | return error; |
1499 | } |
1500 | |
1501 | if (info.identity != priv->info.identity || |
1502 | info.model_id != priv->info.model_id || |
1503 | info.capabilities != priv->info.capabilities || |
1504 | info.ext_cap != priv->info.ext_cap) { |
1505 | psmouse_err(psmouse, |
1506 | "hardware appears to be different: id(%u-%u), model(%u-%u), caps(%x-%x), ext(%x-%x).\n", |
1507 | priv->info.identity, info.identity, |
1508 | priv->info.model_id, info.model_id, |
1509 | priv->info.capabilities, info.capabilities, |
1510 | priv->info.ext_cap, info.ext_cap); |
1511 | return -ENXIO; |
1512 | } |
1513 | |
1514 | return 0; |
1515 | } |
1516 | |
1517 | static bool impaired_toshiba_kbc; |
1518 | |
1519 | static const struct dmi_system_id toshiba_dmi_table[] __initconst = { |
1520 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) |
1521 | { |
1522 | /* Toshiba Satellite */ |
1523 | .matches = { |
1524 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
1525 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
1526 | }, |
1527 | }, |
1528 | { |
1529 | /* Toshiba Dynabook */ |
1530 | .matches = { |
1531 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
1532 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), |
1533 | }, |
1534 | }, |
1535 | { |
1536 | /* Toshiba Portege M300 */ |
1537 | .matches = { |
1538 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
1539 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), |
1540 | }, |
1541 | |
1542 | }, |
1543 | { |
1544 | /* Toshiba Portege M300 */ |
1545 | .matches = { |
1546 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), |
1547 | DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), |
1548 | DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), |
1549 | }, |
1550 | |
1551 | }, |
1552 | #endif |
1553 | { } |
1554 | }; |
1555 | |
1556 | static bool broken_olpc_ec; |
1557 | |
1558 | static const struct dmi_system_id olpc_dmi_table[] __initconst = { |
1559 | #if defined(CONFIG_DMI) && defined(CONFIG_OLPC) |
1560 | { |
1561 | /* OLPC XO-1 or XO-1.5 */ |
1562 | .matches = { |
1563 | DMI_MATCH(DMI_SYS_VENDOR, "OLPC"), |
1564 | DMI_MATCH(DMI_PRODUCT_NAME, "XO"), |
1565 | }, |
1566 | }, |
1567 | #endif |
1568 | { } |
1569 | }; |
1570 | |
1571 | static const struct dmi_system_id __initconst cr48_dmi_table[] = { |
1572 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) |
1573 | { |
1574 | /* Cr-48 Chromebook (Codename Mario) */ |
1575 | .matches = { |
1576 | DMI_MATCH(DMI_SYS_VENDOR, "IEC"), |
1577 | DMI_MATCH(DMI_PRODUCT_NAME, "Mario"), |
1578 | }, |
1579 | }, |
1580 | #endif |
1581 | { } |
1582 | }; |
1583 | |
1584 | void __init synaptics_module_init(void) |
1585 | { |
1586 | impaired_toshiba_kbc = dmi_check_system(list: toshiba_dmi_table); |
1587 | broken_olpc_ec = dmi_check_system(list: olpc_dmi_table); |
1588 | cr48_profile_sensor = dmi_check_system(list: cr48_dmi_table); |
1589 | } |
1590 | |
1591 | static int synaptics_init_ps2(struct psmouse *psmouse, |
1592 | struct synaptics_device_info *info, |
1593 | bool absolute_mode) |
1594 | { |
1595 | struct synaptics_data *priv; |
1596 | int err; |
1597 | |
1598 | synaptics_apply_quirks(psmouse, info); |
1599 | |
1600 | psmouse->private = priv = kzalloc(sizeof(*priv), GFP_KERNEL); |
1601 | if (!priv) |
1602 | return -ENOMEM; |
1603 | |
1604 | priv->info = *info; |
1605 | priv->absolute_mode = absolute_mode; |
1606 | if (SYN_ID_DISGEST_SUPPORTED(info->identity)) |
1607 | priv->disable_gesture = true; |
1608 | |
1609 | /* |
1610 | * Unfortunately ForcePad capability is not exported over PS/2, |
1611 | * so we have to resort to checking PNP IDs. |
1612 | */ |
1613 | priv->is_forcepad = psmouse_matches_pnp_id(psmouse, ids: forcepad_pnp_ids); |
1614 | |
1615 | err = synaptics_set_mode(psmouse); |
1616 | if (err) { |
1617 | psmouse_err(psmouse, "Unable to initialize device.\n"); |
1618 | goto init_fail; |
1619 | } |
1620 | |
1621 | priv->pkt_type = SYN_MODEL_NEWABS(info->model_id) ? |
1622 | SYN_NEWABS : SYN_OLDABS; |
1623 | |
1624 | psmouse_info(psmouse, |
1625 | "Touchpad model: %lu, fw: %lu.%lu, id: %#x, caps: %#x/%#x/%#x/%#x, board id: %u, fw id: %u\n", |
1626 | SYN_ID_MODEL(info->identity), |
1627 | SYN_ID_MAJOR(info->identity), SYN_ID_MINOR(info->identity), |
1628 | info->model_id, |
1629 | info->capabilities, info->ext_cap, info->ext_cap_0c, |
1630 | info->ext_cap_10, info->board_id, info->firmware_id); |
1631 | |
1632 | err = set_input_params(psmouse, priv); |
1633 | if (err) { |
1634 | psmouse_err(psmouse, |
1635 | "failed to set up capabilities: %d\n", err); |
1636 | goto init_fail; |
1637 | } |
1638 | |
1639 | /* |
1640 | * Encode touchpad model so that it can be used to set |
1641 | * input device->id.version and be visible to userspace. |
1642 | * Because version is __u16 we have to drop something. |
1643 | * Hardware info bits seem to be good candidates as they |
1644 | * are documented to be for Synaptics corp. internal use. |
1645 | */ |
1646 | psmouse->model = ((info->model_id & 0x00ff0000) >> 8) | |
1647 | (info->model_id & 0x000000ff); |
1648 | |
1649 | if (absolute_mode) { |
1650 | psmouse->protocol_handler = synaptics_process_byte; |
1651 | psmouse->pktsize = 6; |
1652 | } else { |
1653 | /* Relative mode follows standard PS/2 mouse protocol */ |
1654 | psmouse->protocol_handler = psmouse_process_byte; |
1655 | psmouse->pktsize = 3; |
1656 | } |
1657 | |
1658 | psmouse->set_rate = synaptics_set_rate; |
1659 | psmouse->disconnect = synaptics_disconnect; |
1660 | psmouse->reconnect = synaptics_reconnect; |
1661 | psmouse->fast_reconnect = NULL; |
1662 | psmouse->cleanup = synaptics_reset; |
1663 | /* Synaptics can usually stay in sync without extra help */ |
1664 | psmouse->resync_time = 0; |
1665 | |
1666 | if (SYN_CAP_PASS_THROUGH(info->capabilities)) |
1667 | synaptics_pt_create(psmouse); |
1668 | |
1669 | /* |
1670 | * Toshiba's KBC seems to have trouble handling data from |
1671 | * Synaptics at full rate. Switch to a lower rate (roughly |
1672 | * the same rate as a standard PS/2 mouse). |
1673 | */ |
1674 | if (psmouse->rate >= 80 && impaired_toshiba_kbc) { |
1675 | psmouse_info(psmouse, |
1676 | "Toshiba %s detected, limiting rate to 40pps.\n", |
1677 | dmi_get_system_info(DMI_PRODUCT_NAME)); |
1678 | psmouse->rate = 40; |
1679 | } |
1680 | |
1681 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(info->identity)) { |
1682 | err = device_create_file(device: &psmouse->ps2dev.serio->dev, |
1683 | entry: &psmouse_attr_disable_gesture.dattr); |
1684 | if (err) { |
1685 | psmouse_err(psmouse, |
1686 | "Failed to create disable_gesture attribute (%d)", |
1687 | err); |
1688 | goto init_fail; |
1689 | } |
1690 | } |
1691 | |
1692 | return 0; |
1693 | |
1694 | init_fail: |
1695 | kfree(objp: priv); |
1696 | return err; |
1697 | } |
1698 | |
1699 | static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) |
1700 | { |
1701 | struct synaptics_device_info info; |
1702 | int error; |
1703 | |
1704 | psmouse_reset(psmouse); |
1705 | |
1706 | error = synaptics_query_hardware(psmouse, info: &info); |
1707 | if (error) { |
1708 | psmouse_err(psmouse, "Unable to query device: %d\n", error); |
1709 | return error; |
1710 | } |
1711 | |
1712 | return synaptics_init_ps2(psmouse, info: &info, absolute_mode); |
1713 | } |
1714 | |
1715 | int synaptics_init_absolute(struct psmouse *psmouse) |
1716 | { |
1717 | return __synaptics_init(psmouse, absolute_mode: true); |
1718 | } |
1719 | |
1720 | int synaptics_init_relative(struct psmouse *psmouse) |
1721 | { |
1722 | return __synaptics_init(psmouse, absolute_mode: false); |
1723 | } |
1724 | |
1725 | static int synaptics_setup_ps2(struct psmouse *psmouse, |
1726 | struct synaptics_device_info *info) |
1727 | { |
1728 | bool absolute_mode = true; |
1729 | int error; |
1730 | |
1731 | /* |
1732 | * The OLPC XO has issues with Synaptics' absolute mode; the constant |
1733 | * packet spew overloads the EC such that key presses on the keyboard |
1734 | * are missed. Given that, don't even attempt to use Absolute mode. |
1735 | * Relative mode seems to work just fine. |
1736 | */ |
1737 | if (broken_olpc_ec) { |
1738 | psmouse_info(psmouse, |
1739 | "OLPC XO detected, forcing relative protocol.\n"); |
1740 | absolute_mode = false; |
1741 | } |
1742 | |
1743 | error = synaptics_init_ps2(psmouse, info, absolute_mode); |
1744 | if (error) |
1745 | return error; |
1746 | |
1747 | return absolute_mode ? PSMOUSE_SYNAPTICS : PSMOUSE_SYNAPTICS_RELATIVE; |
1748 | } |
1749 | |
1750 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
1751 | |
1752 | void __init synaptics_module_init(void) |
1753 | { |
1754 | } |
1755 | |
1756 | static int __maybe_unused |
1757 | synaptics_setup_ps2(struct psmouse *psmouse, |
1758 | struct synaptics_device_info *info) |
1759 | { |
1760 | return -ENOSYS; |
1761 | } |
1762 | |
1763 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
1764 | |
1765 | #ifdef CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS |
1766 | |
1767 | /* |
1768 | * The newest Synaptics device can use a secondary bus (called InterTouch) which |
1769 | * provides a better bandwidth and allow a better control of the touchpads. |
1770 | * This is used to decide if we need to use this bus or not. |
1771 | */ |
1772 | enum { |
1773 | SYNAPTICS_INTERTOUCH_NOT_SET = -1, |
1774 | SYNAPTICS_INTERTOUCH_OFF, |
1775 | SYNAPTICS_INTERTOUCH_ON, |
1776 | }; |
1777 | |
1778 | static int synaptics_intertouch = IS_ENABLED(CONFIG_RMI4_SMB) ? |
1779 | SYNAPTICS_INTERTOUCH_NOT_SET : SYNAPTICS_INTERTOUCH_OFF; |
1780 | module_param_named(synaptics_intertouch, synaptics_intertouch, int, 0644); |
1781 | MODULE_PARM_DESC(synaptics_intertouch, "Use a secondary bus for the Synaptics device."); |
1782 | |
1783 | static int synaptics_create_intertouch(struct psmouse *psmouse, |
1784 | struct synaptics_device_info *info, |
1785 | bool leave_breadcrumbs) |
1786 | { |
1787 | bool topbuttonpad = |
1788 | psmouse_matches_pnp_id(psmouse, ids: topbuttonpad_pnp_ids) && |
1789 | !SYN_CAP_EXT_BUTTONS_STICK(info->ext_cap_10); |
1790 | const struct rmi_device_platform_data pdata = { |
1791 | .reset_delay_ms = 30, |
1792 | .sensor_pdata = { |
1793 | .sensor_type = rmi_sensor_touchpad, |
1794 | .axis_align.flip_y = true, |
1795 | .kernel_tracking = false, |
1796 | .topbuttonpad = topbuttonpad, |
1797 | }, |
1798 | .gpio_data = { |
1799 | .buttonpad = SYN_CAP_CLICKPAD(info->ext_cap_0c), |
1800 | .trackstick_buttons = |
1801 | !!SYN_CAP_EXT_BUTTONS_STICK(info->ext_cap_10), |
1802 | }, |
1803 | }; |
1804 | const struct i2c_board_info intertouch_board = { |
1805 | I2C_BOARD_INFO("rmi4_smbus", 0x2c), |
1806 | .flags = I2C_CLIENT_HOST_NOTIFY, |
1807 | }; |
1808 | |
1809 | return psmouse_smbus_init(psmouse, board: &intertouch_board, |
1810 | pdata: &pdata, pdata_size: sizeof(pdata), need_deactivate: true, |
1811 | leave_breadcrumbs); |
1812 | } |
1813 | |
1814 | /* |
1815 | * synaptics_setup_intertouch - called once the PS/2 devices are enumerated |
1816 | * and decides to instantiate a SMBus InterTouch device. |
1817 | */ |
1818 | static int synaptics_setup_intertouch(struct psmouse *psmouse, |
1819 | struct synaptics_device_info *info, |
1820 | bool leave_breadcrumbs) |
1821 | { |
1822 | int error; |
1823 | |
1824 | if (synaptics_intertouch == SYNAPTICS_INTERTOUCH_OFF) |
1825 | return -ENXIO; |
1826 | |
1827 | if (synaptics_intertouch == SYNAPTICS_INTERTOUCH_NOT_SET) { |
1828 | if (!psmouse_matches_pnp_id(psmouse, ids: topbuttonpad_pnp_ids) && |
1829 | !psmouse_matches_pnp_id(psmouse, ids: smbus_pnp_ids)) { |
1830 | |
1831 | if (!psmouse_matches_pnp_id(psmouse, ids: forcepad_pnp_ids)) |
1832 | psmouse_info(psmouse, |
1833 | "Your touchpad (%s) says it can support a different bus. " |
1834 | "If i2c-hid and hid-rmi are not used, you might want to try setting psmouse.synaptics_intertouch to 1 and report this to linux-input@vger.kernel.org.\n", |
1835 | psmouse->ps2dev.serio->firmware_id); |
1836 | |
1837 | return -ENXIO; |
1838 | } |
1839 | } |
1840 | |
1841 | psmouse_info(psmouse, "Trying to set up SMBus access\n"); |
1842 | |
1843 | error = synaptics_create_intertouch(psmouse, info, leave_breadcrumbs); |
1844 | if (error) { |
1845 | if (error == -EAGAIN) |
1846 | psmouse_info(psmouse, "SMbus companion is not ready yet\n"); |
1847 | else |
1848 | psmouse_err(psmouse, "unable to create intertouch device\n"); |
1849 | |
1850 | return error; |
1851 | } |
1852 | |
1853 | return 0; |
1854 | } |
1855 | |
1856 | int synaptics_init_smbus(struct psmouse *psmouse) |
1857 | { |
1858 | struct synaptics_device_info info; |
1859 | int error; |
1860 | |
1861 | psmouse_reset(psmouse); |
1862 | |
1863 | error = synaptics_query_hardware(psmouse, info: &info); |
1864 | if (error) { |
1865 | psmouse_err(psmouse, "Unable to query device: %d\n", error); |
1866 | return error; |
1867 | } |
1868 | |
1869 | if (!SYN_CAP_INTERTOUCH(info.ext_cap_0c)) |
1870 | return -ENXIO; |
1871 | |
1872 | return synaptics_create_intertouch(psmouse, info: &info, leave_breadcrumbs: false); |
1873 | } |
1874 | |
1875 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS */ |
1876 | |
1877 | static int __maybe_unused |
1878 | synaptics_setup_intertouch(struct psmouse *psmouse, |
1879 | struct synaptics_device_info *info, |
1880 | bool leave_breadcrumbs) |
1881 | { |
1882 | return -ENOSYS; |
1883 | } |
1884 | |
1885 | int synaptics_init_smbus(struct psmouse *psmouse) |
1886 | { |
1887 | return -ENOSYS; |
1888 | } |
1889 | |
1890 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS */ |
1891 | |
1892 | #if defined(CONFIG_MOUSE_PS2_SYNAPTICS) || \ |
1893 | defined(CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS) |
1894 | |
1895 | int synaptics_init(struct psmouse *psmouse) |
1896 | { |
1897 | struct synaptics_device_info info; |
1898 | int error; |
1899 | int retval; |
1900 | |
1901 | psmouse_reset(psmouse); |
1902 | |
1903 | error = synaptics_query_hardware(psmouse, info: &info); |
1904 | if (error) { |
1905 | psmouse_err(psmouse, "Unable to query device: %d\n", error); |
1906 | return error; |
1907 | } |
1908 | |
1909 | if (SYN_CAP_INTERTOUCH(info.ext_cap_0c)) { |
1910 | if ((!IS_ENABLED(CONFIG_RMI4_SMB) || |
1911 | !IS_ENABLED(CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS)) && |
1912 | /* Forcepads need F21, which is not ready */ |
1913 | !psmouse_matches_pnp_id(psmouse, ids: forcepad_pnp_ids)) { |
1914 | psmouse_warn(psmouse, |
1915 | "The touchpad can support a better bus than the too old PS/2 protocol. " |
1916 | "Make sure MOUSE_PS2_SYNAPTICS_SMBUS and RMI4_SMB are enabled to get a better touchpad experience.\n"); |
1917 | } |
1918 | |
1919 | error = synaptics_setup_intertouch(psmouse, info: &info, leave_breadcrumbs: true); |
1920 | if (!error) |
1921 | return PSMOUSE_SYNAPTICS_SMBUS; |
1922 | } |
1923 | |
1924 | retval = synaptics_setup_ps2(psmouse, info: &info); |
1925 | if (retval < 0) { |
1926 | /* |
1927 | * Not using any flavor of Synaptics support, so clean up |
1928 | * SMbus breadcrumbs, if any. |
1929 | */ |
1930 | psmouse_smbus_cleanup(psmouse); |
1931 | } |
1932 | |
1933 | return retval; |
1934 | } |
1935 | |
1936 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS || CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS */ |
1937 | |
1938 | int synaptics_init(struct psmouse *psmouse) |
1939 | { |
1940 | return -ENOSYS; |
1941 | } |
1942 | |
1943 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS || CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS */ |
1944 |
Definitions
- synaptics_mode_cmd
- synaptics_detect
- synaptics_reset
- topbuttonpad_pnp_ids
- smbus_pnp_ids
- forcepad_pnp_ids
- synaptics_send_cmd
- synaptics_query_int
- synaptics_identify
- synaptics_model_id
- synaptics_firmware_id
- synaptics_query_modes
- synaptics_capability
- synaptics_resolution
- synaptics_query_hardware
- cr48_profile_sensor
- min_max_quirk
- min_max_pnpid_table
- synaptics_invert_y
- synaptics_apply_quirks
- synaptics_has_agm
- synaptics_set_advanced_gesture_mode
- synaptics_set_mode
- synaptics_set_rate
- synaptics_pt_write
- synaptics_pt_start
- synaptics_pt_stop
- synaptics_pt_open
- synaptics_pt_close
- synaptics_is_pt_packet
- synaptics_pass_pt_packet
- synaptics_pt_activate
- synaptics_pt_create
- synaptics_parse_agm
- synaptics_parse_ext_buttons
- synaptics_parse_hw_state
- synaptics_report_semi_mt_slot
- synaptics_report_semi_mt_data
- synaptics_report_ext_buttons
- synaptics_report_buttons
- synaptics_report_mt_data
- synaptics_image_sensor_process
- synaptics_has_multifinger
- synaptics_process_packet
- synaptics_validate_byte
- synaptics_detect_pkt_type
- synaptics_process_byte
- set_abs_position_params
- set_input_params
- synaptics_show_disable_gesture
- synaptics_set_disable_gesture
- synaptics_disconnect
- synaptics_reconnect
- impaired_toshiba_kbc
- toshiba_dmi_table
- broken_olpc_ec
- olpc_dmi_table
- cr48_dmi_table
- synaptics_module_init
- synaptics_init_ps2
- __synaptics_init
- synaptics_init_absolute
- synaptics_init_relative
- synaptics_setup_ps2
- synaptics_intertouch
- synaptics_create_intertouch
- synaptics_setup_intertouch
- synaptics_init_smbus
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