Commit | Line | Data |
---|---|---|
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 | |
e08d9afa HR |
120 | |
121 | static bool cr48_profile_sensor; | |
122 | ||
0f68f39c HG |
123 | struct min_max_quirk { |
124 | const char * const *pnp_ids; | |
125 | int x_min, x_max, y_min, y_max; | |
126 | }; | |
127 | ||
128 | static const struct min_max_quirk min_max_pnpid_table[] = { | |
129 | { | |
130 | (const char * const []){"LEN0033", NULL}, | |
131 | 1024, 5052, 2258, 4832 | |
132 | }, | |
133 | { | |
134 | (const char * const []){"LEN0035", "LEN0042", NULL}, | |
135 | 1232, 5710, 1156, 4696 | |
136 | }, | |
137 | { | |
8543cf1c PH |
138 | (const char * const []){"LEN0034", "LEN0036", "LEN0037", |
139 | "LEN0039", "LEN2002", "LEN2004", | |
140 | NULL}, | |
0f68f39c HG |
141 | 1024, 5112, 2024, 4832 |
142 | }, | |
143 | { | |
144 | (const char * const []){"LEN2001", NULL}, | |
145 | 1024, 5022, 2508, 4832 | |
146 | }, | |
bce4f9e7 BS |
147 | { |
148 | (const char * const []){"LEN2006", NULL}, | |
149 | 1264, 5675, 1171, 4688 | |
150 | }, | |
0f68f39c HG |
151 | { } |
152 | }; | |
153 | ||
43e19888 HG |
154 | /* This list has been kindly provided by Synaptics. */ |
155 | static const char * const topbuttonpad_pnp_ids[] = { | |
156 | "LEN0017", | |
157 | "LEN0018", | |
158 | "LEN0019", | |
159 | "LEN0023", | |
160 | "LEN002A", | |
161 | "LEN002B", | |
162 | "LEN002C", | |
163 | "LEN002D", | |
164 | "LEN002E", | |
165 | "LEN0033", /* Helix */ | |
0f68f39c | 166 | "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */ |
43e19888 HG |
167 | "LEN0035", /* X240 */ |
168 | "LEN0036", /* T440 */ | |
8543cf1c | 169 | "LEN0037", /* X1 Carbon 2nd */ |
43e19888 | 170 | "LEN0038", |
e4742b1e | 171 | "LEN0039", /* T440s */ |
43e19888 HG |
172 | "LEN0041", |
173 | "LEN0042", /* Yoga */ | |
174 | "LEN0045", | |
175 | "LEN0046", | |
176 | "LEN0047", | |
177 | "LEN0048", | |
178 | "LEN0049", | |
179 | "LEN2000", | |
0f68f39c | 180 | "LEN2001", /* Edge E431 */ |
e76aed9d | 181 | "LEN2002", /* Edge E531 */ |
43e19888 HG |
182 | "LEN2003", |
183 | "LEN2004", /* L440 */ | |
184 | "LEN2005", | |
185 | "LEN2006", | |
186 | "LEN2007", | |
187 | "LEN2008", | |
188 | "LEN2009", | |
189 | "LEN200A", | |
190 | "LEN200B", | |
191 | NULL | |
192 | }; | |
55e3d922 AS |
193 | |
194 | /***************************************************************************** | |
195 | * Synaptics communications functions | |
196 | ****************************************************************************/ | |
197 | ||
1a49a0a0 JD |
198 | /* |
199 | * Synaptics touchpads report the y coordinate from bottom to top, which is | |
200 | * opposite from what userspace expects. | |
201 | * This function is used to invert y before reporting. | |
202 | */ | |
203 | static int synaptics_invert_y(int y) | |
204 | { | |
205 | return YMAX_NOMINAL + YMIN_NOMINAL - y; | |
206 | } | |
207 | ||
1da177e4 | 208 | /* |
55e3d922 | 209 | * Send a command to the synpatics touchpad by special commands |
1da177e4 | 210 | */ |
55e3d922 | 211 | static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) |
1da177e4 | 212 | { |
55e3d922 | 213 | if (psmouse_sliced_command(psmouse, c)) |
1da177e4 | 214 | return -1; |
55e3d922 | 215 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) |
1da177e4 LT |
216 | return -1; |
217 | return 0; | |
218 | } | |
219 | ||
220 | /* | |
221 | * Read the model-id bytes from the touchpad | |
222 | * see also SYN_MODEL_* macros | |
223 | */ | |
224 | static int synaptics_model_id(struct psmouse *psmouse) | |
225 | { | |
226 | struct synaptics_data *priv = psmouse->private; | |
227 | unsigned char mi[3]; | |
228 | ||
229 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) | |
230 | return -1; | |
231 | priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; | |
232 | return 0; | |
233 | } | |
234 | ||
c6bd9d46 DK |
235 | /* |
236 | * Read the board id from the touchpad | |
237 | * The board id is encoded in the "QUERY MODES" response | |
238 | */ | |
239 | static int synaptics_board_id(struct psmouse *psmouse) | |
240 | { | |
241 | struct synaptics_data *priv = psmouse->private; | |
242 | unsigned char bid[3]; | |
243 | ||
244 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid)) | |
245 | return -1; | |
246 | priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; | |
247 | return 0; | |
248 | } | |
249 | ||
250 | /* | |
251 | * Read the firmware id from the touchpad | |
252 | */ | |
253 | static int synaptics_firmware_id(struct psmouse *psmouse) | |
254 | { | |
255 | struct synaptics_data *priv = psmouse->private; | |
256 | unsigned char fwid[3]; | |
257 | ||
258 | if (synaptics_send_cmd(psmouse, SYN_QUE_FIRMWARE_ID, fwid)) | |
259 | return -1; | |
260 | priv->firmware_id = (fwid[0] << 16) | (fwid[1] << 8) | fwid[2]; | |
261 | return 0; | |
262 | } | |
263 | ||
1da177e4 LT |
264 | /* |
265 | * Read the capability-bits from the touchpad | |
266 | * see also the SYN_CAP_* macros | |
267 | */ | |
268 | static int synaptics_capability(struct psmouse *psmouse) | |
269 | { | |
270 | struct synaptics_data *priv = psmouse->private; | |
271 | unsigned char cap[3]; | |
272 | ||
273 | if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) | |
274 | return -1; | |
275 | priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
5f57d67d TI |
276 | priv->ext_cap = priv->ext_cap_0c = 0; |
277 | ||
3619b8fe DT |
278 | /* |
279 | * Older firmwares had submodel ID fixed to 0x47 | |
280 | */ | |
281 | if (SYN_ID_FULL(priv->identity) < 0x705 && | |
282 | SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) { | |
1da177e4 | 283 | return -1; |
3619b8fe | 284 | } |
1da177e4 LT |
285 | |
286 | /* | |
287 | * Unless capExtended is set the rest of the flags should be ignored | |
288 | */ | |
289 | if (!SYN_CAP_EXTENDED(priv->capabilities)) | |
290 | priv->capabilities = 0; | |
291 | ||
292 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { | |
293 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { | |
b5d21704 DT |
294 | psmouse_warn(psmouse, |
295 | "device claims to have extended capabilities, but I'm not able to read them.\n"); | |
1da177e4 LT |
296 | } else { |
297 | priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
298 | ||
299 | /* | |
300 | * if nExtBtn is greater than 8 it should be considered | |
301 | * invalid and treated as 0 | |
302 | */ | |
303 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) | |
304 | priv->ext_cap &= 0xff0fff; | |
305 | } | |
306 | } | |
5f57d67d TI |
307 | |
308 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) { | |
309 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) { | |
b5d21704 DT |
310 | psmouse_warn(psmouse, |
311 | "device claims to have extended capability 0x0c, but I'm not able to read it.\n"); | |
5f57d67d TI |
312 | } else { |
313 | priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
314 | } | |
315 | } | |
316 | ||
1da177e4 LT |
317 | return 0; |
318 | } | |
319 | ||
320 | /* | |
321 | * Identify Touchpad | |
322 | * See also the SYN_ID_* macros | |
323 | */ | |
324 | static int synaptics_identify(struct psmouse *psmouse) | |
325 | { | |
326 | struct synaptics_data *priv = psmouse->private; | |
327 | unsigned char id[3]; | |
328 | ||
329 | if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) | |
330 | return -1; | |
331 | priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; | |
332 | if (SYN_ID_IS_SYNAPTICS(priv->identity)) | |
333 | return 0; | |
334 | return -1; | |
335 | } | |
336 | ||
ec20a022 | 337 | /* |
83ba9ea8 | 338 | * Read touchpad resolution and maximum reported coordinates |
ec20a022 TS |
339 | * Resolution is left zero if touchpad does not support the query |
340 | */ | |
421e08c4 | 341 | |
ec20a022 TS |
342 | static int synaptics_resolution(struct psmouse *psmouse) |
343 | { | |
344 | struct synaptics_data *priv = psmouse->private; | |
a66413fb | 345 | unsigned char resp[3]; |
ec20a022 TS |
346 | |
347 | if (SYN_ID_MAJOR(priv->identity) < 4) | |
bbddd199 | 348 | return 0; |
ec20a022 | 349 | |
a66413fb DT |
350 | if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) { |
351 | if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) { | |
352 | priv->x_res = resp[0]; /* x resolution in units/mm */ | |
353 | priv->y_res = resp[2]; /* y resolution in units/mm */ | |
83ba9ea8 DT |
354 | } |
355 | } | |
ec20a022 | 356 | |
83ba9ea8 DT |
357 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && |
358 | SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { | |
a66413fb | 359 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) { |
b5d21704 DT |
360 | psmouse_warn(psmouse, |
361 | "device claims to have max coordinates query, but I'm not able to read it.\n"); | |
a66413fb DT |
362 | } else { |
363 | priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); | |
364 | priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
9aff6598 DM |
365 | psmouse_info(psmouse, |
366 | "queried max coordinates: x [..%d], y [..%d]\n", | |
367 | priv->x_max, priv->y_max); | |
a66413fb DT |
368 | } |
369 | } | |
370 | ||
371 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 && | |
372 | SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) { | |
373 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) { | |
b5d21704 DT |
374 | psmouse_warn(psmouse, |
375 | "device claims to have min coordinates query, but I'm not able to read it.\n"); | |
83ba9ea8 | 376 | } else { |
a66413fb DT |
377 | priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); |
378 | priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
9aff6598 DM |
379 | psmouse_info(psmouse, |
380 | "queried min coordinates: x [%d..], y [%d..]\n", | |
381 | priv->x_min, priv->y_min); | |
83ba9ea8 | 382 | } |
ec20a022 TS |
383 | } |
384 | ||
385 | return 0; | |
386 | } | |
387 | ||
8b04baba DM |
388 | /* |
389 | * Apply quirk(s) if the hardware matches | |
390 | */ | |
391 | ||
392 | static void synaptics_apply_quirks(struct psmouse *psmouse) | |
393 | { | |
394 | struct synaptics_data *priv = psmouse->private; | |
395 | int i; | |
396 | ||
397 | for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) { | |
398 | if (psmouse_matches_pnp_id(psmouse, | |
399 | min_max_pnpid_table[i].pnp_ids)) { | |
400 | priv->x_min = min_max_pnpid_table[i].x_min; | |
401 | priv->x_max = min_max_pnpid_table[i].x_max; | |
402 | priv->y_min = min_max_pnpid_table[i].y_min; | |
403 | priv->y_max = min_max_pnpid_table[i].y_max; | |
9aff6598 DM |
404 | psmouse_info(psmouse, |
405 | "quirked min/max coordinates: x [%d..%d], y [%d..%d]\n", | |
406 | priv->x_min, priv->x_max, | |
407 | priv->y_min, priv->y_max); | |
8b04baba DM |
408 | break; |
409 | } | |
410 | } | |
411 | } | |
412 | ||
1da177e4 LT |
413 | static int synaptics_query_hardware(struct psmouse *psmouse) |
414 | { | |
1da177e4 LT |
415 | if (synaptics_identify(psmouse)) |
416 | return -1; | |
417 | if (synaptics_model_id(psmouse)) | |
418 | return -1; | |
c6bd9d46 DK |
419 | if (synaptics_firmware_id(psmouse)) |
420 | return -1; | |
421 | if (synaptics_board_id(psmouse)) | |
422 | return -1; | |
1da177e4 LT |
423 | if (synaptics_capability(psmouse)) |
424 | return -1; | |
ec20a022 TS |
425 | if (synaptics_resolution(psmouse)) |
426 | return -1; | |
1da177e4 | 427 | |
8b04baba DM |
428 | synaptics_apply_quirks(psmouse); |
429 | ||
1da177e4 LT |
430 | return 0; |
431 | } | |
432 | ||
7968a5dd DD |
433 | static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse) |
434 | { | |
435 | static unsigned char param = 0xc8; | |
436 | struct synaptics_data *priv = psmouse->private; | |
437 | ||
899c612d BH |
438 | if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || |
439 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c))) | |
7968a5dd DD |
440 | return 0; |
441 | ||
442 | if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL)) | |
443 | return -1; | |
444 | ||
445 | if (ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE)) | |
446 | return -1; | |
447 | ||
448 | /* Advanced gesture mode also sends multi finger data */ | |
449 | priv->capabilities |= BIT(1); | |
450 | ||
451 | return 0; | |
452 | } | |
453 | ||
454 | static int synaptics_set_mode(struct psmouse *psmouse) | |
1da177e4 LT |
455 | { |
456 | struct synaptics_data *priv = psmouse->private; | |
457 | ||
7968a5dd DD |
458 | priv->mode = 0; |
459 | if (priv->absolute_mode) | |
460 | priv->mode |= SYN_BIT_ABSOLUTE_MODE; | |
461 | if (priv->disable_gesture) | |
1da177e4 | 462 | priv->mode |= SYN_BIT_DISABLE_GESTURE; |
7968a5dd DD |
463 | if (psmouse->rate >= 80) |
464 | priv->mode |= SYN_BIT_HIGH_RATE; | |
1da177e4 LT |
465 | if (SYN_CAP_EXTENDED(priv->capabilities)) |
466 | priv->mode |= SYN_BIT_W_MODE; | |
467 | ||
468 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
469 | return -1; | |
470 | ||
7968a5dd DD |
471 | if (priv->absolute_mode && |
472 | synaptics_set_advanced_gesture_mode(psmouse)) { | |
473 | psmouse_err(psmouse, "Advanced gesture mode init failed.\n"); | |
474 | return -1; | |
475 | } | |
476 | ||
1da177e4 LT |
477 | return 0; |
478 | } | |
479 | ||
480 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
481 | { | |
482 | struct synaptics_data *priv = psmouse->private; | |
483 | ||
484 | if (rate >= 80) { | |
485 | priv->mode |= SYN_BIT_HIGH_RATE; | |
486 | psmouse->rate = 80; | |
487 | } else { | |
488 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
489 | psmouse->rate = 40; | |
490 | } | |
491 | ||
492 | synaptics_mode_cmd(psmouse, priv->mode); | |
493 | } | |
494 | ||
495 | /***************************************************************************** | |
496 | * Synaptics pass-through PS/2 port support | |
497 | ****************************************************************************/ | |
498 | static int synaptics_pt_write(struct serio *serio, unsigned char c) | |
499 | { | |
500 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
501 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ | |
502 | ||
503 | if (psmouse_sliced_command(parent, c)) | |
504 | return -1; | |
505 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) | |
506 | return -1; | |
507 | return 0; | |
508 | } | |
509 | ||
a8b3c0f5 DT |
510 | static int synaptics_pt_start(struct serio *serio) |
511 | { | |
512 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
513 | struct synaptics_data *priv = parent->private; | |
514 | ||
515 | serio_pause_rx(parent->ps2dev.serio); | |
516 | priv->pt_port = serio; | |
517 | serio_continue_rx(parent->ps2dev.serio); | |
518 | ||
519 | return 0; | |
520 | } | |
521 | ||
522 | static void synaptics_pt_stop(struct serio *serio) | |
523 | { | |
524 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
525 | struct synaptics_data *priv = parent->private; | |
526 | ||
527 | serio_pause_rx(parent->ps2dev.serio); | |
528 | priv->pt_port = NULL; | |
529 | serio_continue_rx(parent->ps2dev.serio); | |
530 | } | |
531 | ||
532 | static int synaptics_is_pt_packet(unsigned char *buf) | |
1da177e4 LT |
533 | { |
534 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
535 | } | |
536 | ||
537 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) | |
538 | { | |
539 | struct psmouse *child = serio_get_drvdata(ptport); | |
540 | ||
541 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
7d12e780 DH |
542 | serio_interrupt(ptport, packet[1], 0); |
543 | serio_interrupt(ptport, packet[4], 0); | |
544 | serio_interrupt(ptport, packet[5], 0); | |
33fdfa97 | 545 | if (child->pktsize == 4) |
7d12e780 | 546 | serio_interrupt(ptport, packet[2], 0); |
1da177e4 | 547 | } else |
7d12e780 | 548 | serio_interrupt(ptport, packet[1], 0); |
1da177e4 LT |
549 | } |
550 | ||
551 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
552 | { | |
1da177e4 | 553 | struct synaptics_data *priv = psmouse->private; |
a8b3c0f5 | 554 | struct psmouse *child = serio_get_drvdata(priv->pt_port); |
1da177e4 LT |
555 | |
556 | /* adjust the touchpad to child's choice of protocol */ | |
557 | if (child) { | |
33fdfa97 | 558 | if (child->pktsize == 4) |
1da177e4 LT |
559 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
560 | else | |
561 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
562 | ||
563 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
b5d21704 DT |
564 | psmouse_warn(psmouse, |
565 | "failed to switch guest protocol\n"); | |
1da177e4 LT |
566 | } |
567 | } | |
568 | ||
569 | static void synaptics_pt_create(struct psmouse *psmouse) | |
570 | { | |
571 | struct serio *serio; | |
572 | ||
b39787a9 | 573 | serio = kzalloc(sizeof(struct serio), GFP_KERNEL); |
1da177e4 | 574 | if (!serio) { |
b5d21704 DT |
575 | psmouse_err(psmouse, |
576 | "not enough memory for pass-through port\n"); | |
1da177e4 LT |
577 | return; |
578 | } | |
579 | ||
1da177e4 LT |
580 | serio->id.type = SERIO_PS_PSTHRU; |
581 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); | |
582 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); | |
583 | serio->write = synaptics_pt_write; | |
a8b3c0f5 DT |
584 | serio->start = synaptics_pt_start; |
585 | serio->stop = synaptics_pt_stop; | |
1da177e4 LT |
586 | serio->parent = psmouse->ps2dev.serio; |
587 | ||
588 | psmouse->pt_activate = synaptics_pt_activate; | |
589 | ||
b5d21704 DT |
590 | psmouse_info(psmouse, "serio: %s port at %s\n", |
591 | serio->name, psmouse->phys); | |
1da177e4 LT |
592 | serio_register_port(serio); |
593 | } | |
594 | ||
595 | /***************************************************************************** | |
596 | * Functions to interpret the absolute mode packets | |
597 | ****************************************************************************/ | |
598 | ||
a6ca40c1 DK |
599 | static void synaptics_mt_state_set(struct synaptics_mt_state *state, int count, |
600 | int sgm, int agm) | |
601 | { | |
602 | state->count = count; | |
603 | state->sgm = sgm; | |
604 | state->agm = agm; | |
605 | } | |
606 | ||
7afdb842 | 607 | static void synaptics_parse_agm(const unsigned char buf[], |
a6ca40c1 DK |
608 | struct synaptics_data *priv, |
609 | struct synaptics_hw_state *hw) | |
7afdb842 DK |
610 | { |
611 | struct synaptics_hw_state *agm = &priv->agm; | |
a6ca40c1 DK |
612 | int agm_packet_type; |
613 | ||
614 | agm_packet_type = (buf[5] & 0x30) >> 4; | |
615 | switch (agm_packet_type) { | |
616 | case 1: | |
617 | /* Gesture packet: (x, y, z) half resolution */ | |
618 | agm->w = hw->w; | |
619 | agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1; | |
620 | agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1; | |
621 | agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1; | |
622 | break; | |
623 | ||
624 | case 2: | |
625 | /* AGM-CONTACT packet: (count, sgm, agm) */ | |
626 | synaptics_mt_state_set(&agm->mt_state, buf[1], buf[2], buf[4]); | |
627 | break; | |
628 | ||
629 | default: | |
630 | break; | |
631 | } | |
4dc772d2 DK |
632 | |
633 | /* Record that at least one AGM has been received since last SGM */ | |
634 | priv->agm_pending = true; | |
7afdb842 DK |
635 | } |
636 | ||
aa972409 DT |
637 | static bool is_forcepad; |
638 | ||
fec6e525 HR |
639 | static int synaptics_parse_hw_state(const unsigned char buf[], |
640 | struct synaptics_data *priv, | |
641 | struct synaptics_hw_state *hw) | |
1da177e4 LT |
642 | { |
643 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
644 | ||
645 | if (SYN_MODEL_NEWABS(priv->model_id)) { | |
1da177e4 LT |
646 | hw->w = (((buf[0] & 0x30) >> 2) | |
647 | ((buf[0] & 0x04) >> 1) | | |
648 | ((buf[3] & 0x04) >> 2)); | |
649 | ||
5715fc76 DT |
650 | if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || |
651 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) && | |
652 | hw->w == 2) { | |
653 | synaptics_parse_agm(buf, priv, hw); | |
654 | return 1; | |
655 | } | |
656 | ||
657 | hw->x = (((buf[3] & 0x10) << 8) | | |
658 | ((buf[1] & 0x0f) << 8) | | |
659 | buf[4]); | |
660 | hw->y = (((buf[3] & 0x20) << 7) | | |
661 | ((buf[1] & 0xf0) << 4) | | |
662 | buf[5]); | |
663 | hw->z = buf[2]; | |
664 | ||
1da177e4 LT |
665 | hw->left = (buf[0] & 0x01) ? 1 : 0; |
666 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
667 | ||
aa972409 | 668 | if (is_forcepad) { |
5715fc76 DT |
669 | /* |
670 | * ForcePads, like Clickpads, use middle button | |
671 | * bits to report primary button clicks. | |
672 | * Unfortunately they report primary button not | |
673 | * only when user presses on the pad above certain | |
674 | * threshold, but also when there are more than one | |
675 | * finger on the touchpad, which interferes with | |
676 | * out multi-finger gestures. | |
677 | */ | |
678 | if (hw->z == 0) { | |
679 | /* No contacts */ | |
680 | priv->press = priv->report_press = false; | |
681 | } else if (hw->w >= 4 && ((buf[0] ^ buf[3]) & 0x01)) { | |
682 | /* | |
683 | * Single-finger touch with pressure above | |
684 | * the threshold. If pressure stays long | |
685 | * enough, we'll start reporting primary | |
686 | * button. We rely on the device continuing | |
687 | * sending data even if finger does not | |
688 | * move. | |
689 | */ | |
690 | if (!priv->press) { | |
691 | priv->press_start = jiffies; | |
692 | priv->press = true; | |
693 | } else if (time_after(jiffies, | |
694 | priv->press_start + | |
695 | msecs_to_jiffies(50))) { | |
696 | priv->report_press = true; | |
697 | } | |
698 | } else { | |
699 | priv->press = false; | |
700 | } | |
701 | ||
702 | hw->left = priv->report_press; | |
703 | ||
704 | } else if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { | |
5f57d67d TI |
705 | /* |
706 | * Clickpad's button is transmitted as middle button, | |
707 | * however, since it is primary button, we will report | |
708 | * it as BTN_LEFT. | |
709 | */ | |
710 | hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
711 | ||
712 | } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
1da177e4 LT |
713 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
714 | if (hw->w == 2) | |
715 | hw->scroll = (signed char)(buf[1]); | |
716 | } | |
717 | ||
718 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
719 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
720 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
721 | } | |
722 | ||
723 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && | |
724 | ((buf[0] ^ buf[3]) & 0x02)) { | |
725 | switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { | |
726 | default: | |
727 | /* | |
728 | * if nExtBtn is greater than 8 it should be | |
729 | * considered invalid and treated as 0 | |
730 | */ | |
731 | break; | |
732 | case 8: | |
733 | hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; | |
734 | hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; | |
735 | case 6: | |
736 | hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; | |
737 | hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; | |
738 | case 4: | |
739 | hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; | |
740 | hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; | |
741 | case 2: | |
742 | hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; | |
743 | hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; | |
744 | } | |
745 | } | |
746 | } else { | |
747 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
748 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
749 | ||
750 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
751 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
752 | ||
753 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
754 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
755 | } | |
fec6e525 | 756 | |
824efd37 SF |
757 | /* |
758 | * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE | |
759 | * is used by some firmware to indicate a finger at the edge of | |
760 | * the touchpad whose precise position cannot be determined, so | |
761 | * convert these values to the maximum axis value. | |
762 | */ | |
c0394506 SF |
763 | if (hw->x > X_MAX_POSITIVE) |
764 | hw->x -= 1 << ABS_POS_BITS; | |
824efd37 SF |
765 | else if (hw->x == X_MAX_POSITIVE) |
766 | hw->x = XMAX; | |
767 | ||
c0394506 SF |
768 | if (hw->y > Y_MAX_POSITIVE) |
769 | hw->y -= 1 << ABS_POS_BITS; | |
824efd37 SF |
770 | else if (hw->y == Y_MAX_POSITIVE) |
771 | hw->y = YMAX; | |
c0394506 | 772 | |
fec6e525 HR |
773 | return 0; |
774 | } | |
775 | ||
bea9f0ff DK |
776 | static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot, |
777 | bool active, int x, int y) | |
fec6e525 HR |
778 | { |
779 | input_mt_slot(dev, slot); | |
780 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); | |
781 | if (active) { | |
782 | input_report_abs(dev, ABS_MT_POSITION_X, x); | |
6de58dd6 | 783 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y)); |
fec6e525 HR |
784 | } |
785 | } | |
786 | ||
787 | static void synaptics_report_semi_mt_data(struct input_dev *dev, | |
788 | const struct synaptics_hw_state *a, | |
789 | const struct synaptics_hw_state *b, | |
790 | int num_fingers) | |
791 | { | |
792 | if (num_fingers >= 2) { | |
bea9f0ff DK |
793 | synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x), |
794 | min(a->y, b->y)); | |
795 | synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x), | |
796 | max(a->y, b->y)); | |
fec6e525 | 797 | } else if (num_fingers == 1) { |
bea9f0ff DK |
798 | synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y); |
799 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 800 | } else { |
bea9f0ff DK |
801 | synaptics_report_semi_mt_slot(dev, 0, false, 0, 0); |
802 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 803 | } |
1da177e4 LT |
804 | } |
805 | ||
3cdfee9e DK |
806 | static void synaptics_report_buttons(struct psmouse *psmouse, |
807 | const struct synaptics_hw_state *hw) | |
808 | { | |
809 | struct input_dev *dev = psmouse->dev; | |
810 | struct synaptics_data *priv = psmouse->private; | |
811 | int i; | |
812 | ||
813 | input_report_key(dev, BTN_LEFT, hw->left); | |
814 | input_report_key(dev, BTN_RIGHT, hw->right); | |
815 | ||
816 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
817 | input_report_key(dev, BTN_MIDDLE, hw->middle); | |
818 | ||
819 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
820 | input_report_key(dev, BTN_FORWARD, hw->up); | |
821 | input_report_key(dev, BTN_BACK, hw->down); | |
822 | } | |
823 | ||
824 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
825 | input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i)); | |
826 | } | |
827 | ||
828 | static void synaptics_report_slot(struct input_dev *dev, int slot, | |
829 | const struct synaptics_hw_state *hw) | |
830 | { | |
831 | input_mt_slot(dev, slot); | |
832 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, (hw != NULL)); | |
833 | if (!hw) | |
834 | return; | |
835 | ||
836 | input_report_abs(dev, ABS_MT_POSITION_X, hw->x); | |
837 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(hw->y)); | |
838 | input_report_abs(dev, ABS_MT_PRESSURE, hw->z); | |
839 | } | |
840 | ||
841 | static void synaptics_report_mt_data(struct psmouse *psmouse, | |
4dc772d2 | 842 | struct synaptics_mt_state *mt_state, |
3cdfee9e DK |
843 | const struct synaptics_hw_state *sgm) |
844 | { | |
845 | struct input_dev *dev = psmouse->dev; | |
846 | struct synaptics_data *priv = psmouse->private; | |
847 | struct synaptics_hw_state *agm = &priv->agm; | |
4dc772d2 | 848 | struct synaptics_mt_state *old = &priv->mt_state; |
3cdfee9e | 849 | |
4dc772d2 | 850 | switch (mt_state->count) { |
3cdfee9e DK |
851 | case 0: |
852 | synaptics_report_slot(dev, 0, NULL); | |
853 | synaptics_report_slot(dev, 1, NULL); | |
854 | break; | |
855 | case 1: | |
4dc772d2 DK |
856 | if (mt_state->sgm == -1) { |
857 | synaptics_report_slot(dev, 0, NULL); | |
858 | synaptics_report_slot(dev, 1, NULL); | |
859 | } else if (mt_state->sgm == 0) { | |
860 | synaptics_report_slot(dev, 0, sgm); | |
861 | synaptics_report_slot(dev, 1, NULL); | |
862 | } else { | |
863 | synaptics_report_slot(dev, 0, NULL); | |
864 | synaptics_report_slot(dev, 1, sgm); | |
865 | } | |
3cdfee9e | 866 | break; |
4dc772d2 DK |
867 | default: |
868 | /* | |
869 | * If the finger slot contained in SGM is valid, and either | |
48064bdc DK |
870 | * hasn't changed, or is new, or the old SGM has now moved to |
871 | * AGM, then report SGM in MTB slot 0. | |
4dc772d2 DK |
872 | * Otherwise, empty MTB slot 0. |
873 | */ | |
874 | if (mt_state->sgm != -1 && | |
48064bdc DK |
875 | (mt_state->sgm == old->sgm || |
876 | old->sgm == -1 || mt_state->agm == old->sgm)) | |
4dc772d2 DK |
877 | synaptics_report_slot(dev, 0, sgm); |
878 | else | |
879 | synaptics_report_slot(dev, 0, NULL); | |
880 | ||
881 | /* | |
882 | * If the finger slot contained in AGM is valid, and either | |
883 | * hasn't changed, or is new, then report AGM in MTB slot 1. | |
884 | * Otherwise, empty MTB slot 1. | |
48064bdc DK |
885 | * |
886 | * However, in the case where the AGM is new, make sure that | |
887 | * that it is either the same as the old SGM, or there was no | |
888 | * SGM. | |
889 | * | |
890 | * Otherwise, if the SGM was just 1, and the new AGM is 2, then | |
891 | * the new AGM will keep the old SGM's tracking ID, which can | |
892 | * cause apparent drumroll. This happens if in the following | |
893 | * valid finger sequence: | |
894 | * | |
895 | * Action SGM AGM (MTB slot:Contact) | |
896 | * 1. Touch contact 0 (0:0) | |
897 | * 2. Touch contact 1 (0:0, 1:1) | |
898 | * 3. Lift contact 0 (1:1) | |
899 | * 4. Touch contacts 2,3 (0:2, 1:3) | |
900 | * | |
901 | * In step 4, contact 3, in AGM must not be given the same | |
902 | * tracking ID as contact 1 had in step 3. To avoid this, | |
903 | * the first agm with contact 3 is dropped and slot 1 is | |
904 | * invalidated (tracking ID = -1). | |
4dc772d2 DK |
905 | */ |
906 | if (mt_state->agm != -1 && | |
48064bdc DK |
907 | (mt_state->agm == old->agm || |
908 | (old->agm == -1 && | |
909 | (old->sgm == -1 || mt_state->agm == old->sgm)))) | |
4dc772d2 DK |
910 | synaptics_report_slot(dev, 1, agm); |
911 | else | |
912 | synaptics_report_slot(dev, 1, NULL); | |
3cdfee9e DK |
913 | break; |
914 | } | |
915 | ||
916 | /* Don't use active slot count to generate BTN_TOOL events. */ | |
917 | input_mt_report_pointer_emulation(dev, false); | |
918 | ||
919 | /* Send the number of fingers reported by touchpad itself. */ | |
4dc772d2 | 920 | input_mt_report_finger_count(dev, mt_state->count); |
3cdfee9e DK |
921 | |
922 | synaptics_report_buttons(psmouse, sgm); | |
923 | ||
924 | input_sync(dev); | |
925 | } | |
926 | ||
4dc772d2 DK |
927 | /* Handle case where mt_state->count = 0 */ |
928 | static void synaptics_image_sensor_0f(struct synaptics_data *priv, | |
929 | struct synaptics_mt_state *mt_state) | |
930 | { | |
931 | synaptics_mt_state_set(mt_state, 0, -1, -1); | |
932 | priv->mt_state_lost = false; | |
933 | } | |
934 | ||
935 | /* Handle case where mt_state->count = 1 */ | |
936 | static void synaptics_image_sensor_1f(struct synaptics_data *priv, | |
937 | struct synaptics_mt_state *mt_state) | |
938 | { | |
939 | struct synaptics_hw_state *agm = &priv->agm; | |
940 | struct synaptics_mt_state *old = &priv->mt_state; | |
941 | ||
942 | /* | |
943 | * If the last AGM was (0,0,0), and there is only one finger left, | |
944 | * then we absolutely know that SGM contains slot 0, and all other | |
945 | * fingers have been removed. | |
946 | */ | |
947 | if (priv->agm_pending && agm->z == 0) { | |
948 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
949 | priv->mt_state_lost = false; | |
950 | return; | |
951 | } | |
952 | ||
953 | switch (old->count) { | |
954 | case 0: | |
955 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
956 | break; | |
957 | case 1: | |
958 | /* | |
959 | * If mt_state_lost, then the previous transition was 3->1, | |
960 | * and SGM now contains either slot 0 or 1, but we don't know | |
961 | * which. So, we just assume that the SGM now contains slot 1. | |
962 | * | |
963 | * If pending AGM and either: | |
964 | * (a) the previous SGM slot contains slot 0, or | |
965 | * (b) there was no SGM slot | |
966 | * then, the SGM now contains slot 1 | |
967 | * | |
968 | * Case (a) happens with very rapid "drum roll" gestures, where | |
969 | * slot 0 finger is lifted and a new slot 1 finger touches | |
970 | * within one reporting interval. | |
971 | * | |
972 | * Case (b) happens if initially two or more fingers tap | |
973 | * briefly, and all but one lift before the end of the first | |
974 | * reporting interval. | |
975 | * | |
976 | * (In both these cases, slot 0 will becomes empty, so SGM | |
977 | * contains slot 1 with the new finger) | |
978 | * | |
979 | * Else, if there was no previous SGM, it now contains slot 0. | |
980 | * | |
981 | * Otherwise, SGM still contains the same slot. | |
982 | */ | |
983 | if (priv->mt_state_lost || | |
984 | (priv->agm_pending && old->sgm <= 0)) | |
985 | synaptics_mt_state_set(mt_state, 1, 1, -1); | |
986 | else if (old->sgm == -1) | |
987 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
988 | break; | |
989 | case 2: | |
990 | /* | |
991 | * If mt_state_lost, we don't know which finger SGM contains. | |
992 | * | |
993 | * So, report 1 finger, but with both slots empty. | |
994 | * We will use slot 1 on subsequent 1->1 | |
995 | */ | |
996 | if (priv->mt_state_lost) { | |
997 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
998 | break; | |
999 | } | |
1000 | /* | |
1001 | * Since the last AGM was NOT (0,0,0), it was the finger in | |
1002 | * slot 0 that has been removed. | |
1003 | * So, SGM now contains previous AGM's slot, and AGM is now | |
1004 | * empty. | |
1005 | */ | |
1006 | synaptics_mt_state_set(mt_state, 1, old->agm, -1); | |
1007 | break; | |
1008 | case 3: | |
1009 | /* | |
1010 | * Since last AGM was not (0,0,0), we don't know which finger | |
1011 | * is left. | |
1012 | * | |
1013 | * So, report 1 finger, but with both slots empty. | |
1014 | * We will use slot 1 on subsequent 1->1 | |
1015 | */ | |
1016 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
1017 | priv->mt_state_lost = true; | |
1018 | break; | |
6b4b49fe DK |
1019 | case 4: |
1020 | case 5: | |
1021 | /* mt_state was updated by AGM-CONTACT packet */ | |
1022 | break; | |
4dc772d2 DK |
1023 | } |
1024 | } | |
1025 | ||
1026 | /* Handle case where mt_state->count = 2 */ | |
1027 | static void synaptics_image_sensor_2f(struct synaptics_data *priv, | |
1028 | struct synaptics_mt_state *mt_state) | |
1029 | { | |
1030 | struct synaptics_mt_state *old = &priv->mt_state; | |
1031 | ||
1032 | switch (old->count) { | |
1033 | case 0: | |
1034 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
1035 | break; | |
1036 | case 1: | |
1037 | /* | |
1038 | * If previous SGM contained slot 1 or higher, SGM now contains | |
1039 | * slot 0 (the newly touching finger) and AGM contains SGM's | |
1040 | * previous slot. | |
1041 | * | |
1042 | * Otherwise, SGM still contains slot 0 and AGM now contains | |
1043 | * slot 1. | |
1044 | */ | |
1045 | if (old->sgm >= 1) | |
1046 | synaptics_mt_state_set(mt_state, 2, 0, old->sgm); | |
1047 | else | |
1048 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
1049 | break; | |
1050 | case 2: | |
1051 | /* | |
1052 | * If mt_state_lost, SGM now contains either finger 1 or 2, but | |
1053 | * we don't know which. | |
1054 | * So, we just assume that the SGM contains slot 0 and AGM 1. | |
1055 | */ | |
1056 | if (priv->mt_state_lost) | |
1057 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
1058 | /* | |
1059 | * Otherwise, use the same mt_state, since it either hasn't | |
1060 | * changed, or was updated by a recently received AGM-CONTACT | |
1061 | * packet. | |
1062 | */ | |
1063 | break; | |
1064 | case 3: | |
1065 | /* | |
1066 | * 3->2 transitions have two unsolvable problems: | |
1067 | * 1) no indication is given which finger was removed | |
1068 | * 2) no way to tell if agm packet was for finger 3 | |
1069 | * before 3->2, or finger 2 after 3->2. | |
1070 | * | |
1071 | * So, report 2 fingers, but empty all slots. | |
1072 | * We will guess slots [0,1] on subsequent 2->2. | |
1073 | */ | |
1074 | synaptics_mt_state_set(mt_state, 2, -1, -1); | |
1075 | priv->mt_state_lost = true; | |
1076 | break; | |
6b4b49fe DK |
1077 | case 4: |
1078 | case 5: | |
1079 | /* mt_state was updated by AGM-CONTACT packet */ | |
1080 | break; | |
4dc772d2 DK |
1081 | } |
1082 | } | |
1083 | ||
1084 | /* Handle case where mt_state->count = 3 */ | |
1085 | static void synaptics_image_sensor_3f(struct synaptics_data *priv, | |
1086 | struct synaptics_mt_state *mt_state) | |
1087 | { | |
1088 | struct synaptics_mt_state *old = &priv->mt_state; | |
1089 | ||
1090 | switch (old->count) { | |
1091 | case 0: | |
1092 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1093 | break; | |
1094 | case 1: | |
1095 | /* | |
1096 | * If previous SGM contained slot 2 or higher, SGM now contains | |
1097 | * slot 0 (one of the newly touching fingers) and AGM contains | |
1098 | * SGM's previous slot. | |
1099 | * | |
1100 | * Otherwise, SGM now contains slot 0 and AGM contains slot 2. | |
1101 | */ | |
1102 | if (old->sgm >= 2) | |
1103 | synaptics_mt_state_set(mt_state, 3, 0, old->sgm); | |
1104 | else | |
1105 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1106 | break; | |
1107 | case 2: | |
6b4b49fe DK |
1108 | /* |
1109 | * If the AGM previously contained slot 3 or higher, then the | |
1110 | * newly touching finger is in the lowest available slot. | |
1111 | * | |
1112 | * If SGM was previously 1 or higher, then the new SGM is | |
1113 | * now slot 0 (with a new finger), otherwise, the new finger | |
1114 | * is now in a hidden slot between 0 and AGM's slot. | |
1115 | * | |
1116 | * In all such cases, the SGM now contains slot 0, and the AGM | |
1117 | * continues to contain the same slot as before. | |
1118 | */ | |
1119 | if (old->agm >= 3) { | |
1120 | synaptics_mt_state_set(mt_state, 3, 0, old->agm); | |
1121 | break; | |
1122 | } | |
1123 | ||
4dc772d2 DK |
1124 | /* |
1125 | * After some 3->1 and all 3->2 transitions, we lose track | |
1126 | * of which slot is reported by SGM and AGM. | |
1127 | * | |
1128 | * For 2->3 in this state, report 3 fingers, but empty all | |
1129 | * slots, and we will guess (0,2) on a subsequent 0->3. | |
1130 | * | |
1131 | * To userspace, the resulting transition will look like: | |
1132 | * 2:[0,1] -> 3:[-1,-1] -> 3:[0,2] | |
1133 | */ | |
1134 | if (priv->mt_state_lost) { | |
1135 | synaptics_mt_state_set(mt_state, 3, -1, -1); | |
1136 | break; | |
1137 | } | |
1138 | ||
1139 | /* | |
1140 | * If the (SGM,AGM) really previously contained slots (0, 1), | |
1141 | * then we cannot know what slot was just reported by the AGM, | |
1142 | * because the 2->3 transition can occur either before or after | |
1143 | * the AGM packet. Thus, this most recent AGM could contain | |
1144 | * either the same old slot 1 or the new slot 2. | |
1145 | * Subsequent AGMs will be reporting slot 2. | |
1146 | * | |
1147 | * To userspace, the resulting transition will look like: | |
1148 | * 2:[0,1] -> 3:[0,-1] -> 3:[0,2] | |
1149 | */ | |
1150 | synaptics_mt_state_set(mt_state, 3, 0, -1); | |
1151 | break; | |
1152 | case 3: | |
1153 | /* | |
1154 | * If, for whatever reason, the previous agm was invalid, | |
1155 | * Assume SGM now contains slot 0, AGM now contains slot 2. | |
1156 | */ | |
1157 | if (old->agm <= 2) | |
1158 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1159 | /* | |
1160 | * mt_state either hasn't changed, or was updated by a recently | |
1161 | * received AGM-CONTACT packet. | |
1162 | */ | |
1163 | break; | |
6b4b49fe DK |
1164 | |
1165 | case 4: | |
1166 | case 5: | |
1167 | /* mt_state was updated by AGM-CONTACT packet */ | |
1168 | break; | |
4dc772d2 DK |
1169 | } |
1170 | } | |
1171 | ||
6b4b49fe DK |
1172 | /* Handle case where mt_state->count = 4, or = 5 */ |
1173 | static void synaptics_image_sensor_45f(struct synaptics_data *priv, | |
1174 | struct synaptics_mt_state *mt_state) | |
1175 | { | |
1176 | /* mt_state was updated correctly by AGM-CONTACT packet */ | |
1177 | priv->mt_state_lost = false; | |
1178 | } | |
1179 | ||
3cdfee9e DK |
1180 | static void synaptics_image_sensor_process(struct psmouse *psmouse, |
1181 | struct synaptics_hw_state *sgm) | |
1182 | { | |
4dc772d2 DK |
1183 | struct synaptics_data *priv = psmouse->private; |
1184 | struct synaptics_hw_state *agm = &priv->agm; | |
1185 | struct synaptics_mt_state mt_state; | |
3cdfee9e | 1186 | |
4dc772d2 DK |
1187 | /* Initialize using current mt_state (as updated by last agm) */ |
1188 | mt_state = agm->mt_state; | |
1189 | ||
1190 | /* | |
1191 | * Update mt_state using the new finger count and current mt_state. | |
1192 | */ | |
3cdfee9e | 1193 | if (sgm->z == 0) |
4dc772d2 | 1194 | synaptics_image_sensor_0f(priv, &mt_state); |
3cdfee9e | 1195 | else if (sgm->w >= 4) |
4dc772d2 | 1196 | synaptics_image_sensor_1f(priv, &mt_state); |
3cdfee9e | 1197 | else if (sgm->w == 0) |
4dc772d2 | 1198 | synaptics_image_sensor_2f(priv, &mt_state); |
6b4b49fe | 1199 | else if (sgm->w == 1 && mt_state.count <= 3) |
4dc772d2 | 1200 | synaptics_image_sensor_3f(priv, &mt_state); |
6b4b49fe DK |
1201 | else |
1202 | synaptics_image_sensor_45f(priv, &mt_state); | |
3cdfee9e DK |
1203 | |
1204 | /* Send resulting input events to user space */ | |
4dc772d2 DK |
1205 | synaptics_report_mt_data(psmouse, &mt_state, sgm); |
1206 | ||
1207 | /* Store updated mt_state */ | |
1208 | priv->mt_state = agm->mt_state = mt_state; | |
1209 | priv->agm_pending = false; | |
3cdfee9e DK |
1210 | } |
1211 | ||
e08d9afa HR |
1212 | static void synaptics_profile_sensor_process(struct psmouse *psmouse, |
1213 | struct synaptics_hw_state *sgm, | |
1214 | int num_fingers) | |
1215 | { | |
1216 | struct input_dev *dev = psmouse->dev; | |
1217 | struct synaptics_data *priv = psmouse->private; | |
1218 | struct synaptics_hw_state *hw[2] = { sgm, &priv->agm }; | |
1219 | struct input_mt_pos pos[2]; | |
1220 | int slot[2], nsemi, i; | |
1221 | ||
1222 | nsemi = clamp_val(num_fingers, 0, 2); | |
1223 | ||
1224 | for (i = 0; i < nsemi; i++) { | |
1225 | pos[i].x = hw[i]->x; | |
1226 | pos[i].y = synaptics_invert_y(hw[i]->y); | |
1227 | } | |
1228 | ||
1229 | input_mt_assign_slots(dev, slot, pos, nsemi); | |
1230 | ||
1231 | for (i = 0; i < nsemi; i++) { | |
1232 | input_mt_slot(dev, slot[i]); | |
1233 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); | |
1234 | input_report_abs(dev, ABS_MT_POSITION_X, pos[i].x); | |
1235 | input_report_abs(dev, ABS_MT_POSITION_Y, pos[i].y); | |
1236 | input_report_abs(dev, ABS_MT_PRESSURE, hw[i]->z); | |
1237 | } | |
1238 | ||
1239 | input_mt_drop_unused(dev); | |
1240 | input_mt_report_pointer_emulation(dev, false); | |
1241 | input_mt_report_finger_count(dev, num_fingers); | |
1242 | ||
1243 | synaptics_report_buttons(psmouse, sgm); | |
1244 | ||
1245 | input_sync(dev); | |
1246 | } | |
1247 | ||
1da177e4 LT |
1248 | /* |
1249 | * called for each full received packet from the touchpad | |
1250 | */ | |
1251 | static void synaptics_process_packet(struct psmouse *psmouse) | |
1252 | { | |
2e5b636b | 1253 | struct input_dev *dev = psmouse->dev; |
1da177e4 LT |
1254 | struct synaptics_data *priv = psmouse->private; |
1255 | struct synaptics_hw_state hw; | |
1256 | int num_fingers; | |
1257 | int finger_width; | |
1da177e4 | 1258 | |
fec6e525 HR |
1259 | if (synaptics_parse_hw_state(psmouse->packet, priv, &hw)) |
1260 | return; | |
1da177e4 | 1261 | |
3cdfee9e DK |
1262 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { |
1263 | synaptics_image_sensor_process(psmouse, &hw); | |
1264 | return; | |
1265 | } | |
1266 | ||
1da177e4 LT |
1267 | if (hw.scroll) { |
1268 | priv->scroll += hw.scroll; | |
1269 | ||
1270 | while (priv->scroll >= 4) { | |
1271 | input_report_key(dev, BTN_BACK, !hw.down); | |
1272 | input_sync(dev); | |
1273 | input_report_key(dev, BTN_BACK, hw.down); | |
1274 | input_sync(dev); | |
1275 | priv->scroll -= 4; | |
1276 | } | |
1277 | while (priv->scroll <= -4) { | |
1278 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
1279 | input_sync(dev); | |
1280 | input_report_key(dev, BTN_FORWARD, hw.up); | |
1281 | input_sync(dev); | |
1282 | priv->scroll += 4; | |
1283 | } | |
1284 | return; | |
1285 | } | |
1286 | ||
4f56ce92 | 1287 | if (hw.z > 0 && hw.x > 1) { |
1da177e4 LT |
1288 | num_fingers = 1; |
1289 | finger_width = 5; | |
1290 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
1291 | switch (hw.w) { | |
1292 | case 0 ... 1: | |
1293 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
1294 | num_fingers = hw.w + 2; | |
1295 | break; | |
1296 | case 2: | |
1297 | if (SYN_MODEL_PEN(priv->model_id)) | |
1298 | ; /* Nothing, treat a pen as a single finger */ | |
1299 | break; | |
1300 | case 4 ... 15: | |
1301 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
1302 | finger_width = hw.w; | |
1303 | break; | |
1304 | } | |
1305 | } | |
1306 | } else { | |
1307 | num_fingers = 0; | |
1308 | finger_width = 0; | |
1309 | } | |
1310 | ||
e08d9afa HR |
1311 | if (cr48_profile_sensor) { |
1312 | synaptics_profile_sensor_process(psmouse, &hw, num_fingers); | |
1313 | return; | |
1314 | } | |
1315 | ||
fec6e525 | 1316 | if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) |
7afdb842 DK |
1317 | synaptics_report_semi_mt_data(dev, &hw, &priv->agm, |
1318 | num_fingers); | |
fec6e525 | 1319 | |
1da177e4 LT |
1320 | /* Post events |
1321 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
1322 | * absolute -> relative conversion | |
1323 | */ | |
1324 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
1325 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
1326 | ||
4f56ce92 | 1327 | if (num_fingers > 0) { |
1da177e4 | 1328 | input_report_abs(dev, ABS_X, hw.x); |
6de58dd6 | 1329 | input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y)); |
1da177e4 LT |
1330 | } |
1331 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
1332 | ||
2a8e7710 CB |
1333 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
1334 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); | |
1335 | ||
1da177e4 | 1336 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); |
e42b6646 PH |
1337 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
1338 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); | |
1339 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); | |
1340 | } | |
1341 | ||
3cdfee9e | 1342 | synaptics_report_buttons(psmouse, &hw); |
1da177e4 LT |
1343 | |
1344 | input_sync(dev); | |
1345 | } | |
1346 | ||
b5d21704 DT |
1347 | static int synaptics_validate_byte(struct psmouse *psmouse, |
1348 | int idx, unsigned char pkt_type) | |
1da177e4 | 1349 | { |
e38de678 HD |
1350 | static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; |
1351 | static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; | |
1352 | static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; | |
1353 | static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; | |
1354 | static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; | |
b5d21704 | 1355 | const char *packet = psmouse->packet; |
1da177e4 LT |
1356 | |
1357 | if (idx < 0 || idx > 4) | |
1358 | return 0; | |
1359 | ||
1360 | switch (pkt_type) { | |
1da177e4 | 1361 | |
a62f0d27 DT |
1362 | case SYN_NEWABS: |
1363 | case SYN_NEWABS_RELAXED: | |
1364 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1365 | |
a62f0d27 DT |
1366 | case SYN_NEWABS_STRICT: |
1367 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1368 | |
a62f0d27 DT |
1369 | case SYN_OLDABS: |
1370 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
1371 | ||
1372 | default: | |
b5d21704 | 1373 | psmouse_err(psmouse, "unknown packet type %d\n", pkt_type); |
a62f0d27 | 1374 | return 0; |
1da177e4 LT |
1375 | } |
1376 | } | |
1377 | ||
1378 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) | |
1379 | { | |
1380 | int i; | |
1381 | ||
1382 | for (i = 0; i < 5; i++) | |
b5d21704 DT |
1383 | if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) { |
1384 | psmouse_info(psmouse, "using relaxed packet validation\n"); | |
1da177e4 LT |
1385 | return SYN_NEWABS_RELAXED; |
1386 | } | |
1387 | ||
1388 | return SYN_NEWABS_STRICT; | |
1389 | } | |
1390 | ||
7d12e780 | 1391 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) |
1da177e4 | 1392 | { |
1da177e4 LT |
1393 | struct synaptics_data *priv = psmouse->private; |
1394 | ||
1da177e4 LT |
1395 | if (psmouse->pktcnt >= 6) { /* Full packet received */ |
1396 | if (unlikely(priv->pkt_type == SYN_NEWABS)) | |
1397 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); | |
1398 | ||
a8b3c0f5 DT |
1399 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && |
1400 | synaptics_is_pt_packet(psmouse->packet)) { | |
1401 | if (priv->pt_port) | |
1402 | synaptics_pass_pt_packet(priv->pt_port, psmouse->packet); | |
1da177e4 LT |
1403 | } else |
1404 | synaptics_process_packet(psmouse); | |
1405 | ||
1406 | return PSMOUSE_FULL_PACKET; | |
1407 | } | |
1408 | ||
b5d21704 | 1409 | return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ? |
1da177e4 LT |
1410 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; |
1411 | } | |
1412 | ||
1413 | /***************************************************************************** | |
1414 | * Driver initialization/cleanup functions | |
1415 | ****************************************************************************/ | |
85615476 DK |
1416 | static void set_abs_position_params(struct input_dev *dev, |
1417 | struct synaptics_data *priv, int x_code, | |
1418 | int y_code) | |
1da177e4 | 1419 | { |
85615476 DK |
1420 | int x_min = priv->x_min ?: XMIN_NOMINAL; |
1421 | int x_max = priv->x_max ?: XMAX_NOMINAL; | |
1422 | int y_min = priv->y_min ?: YMIN_NOMINAL; | |
1423 | int y_max = priv->y_max ?: YMAX_NOMINAL; | |
a9f0b79e DK |
1424 | int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ? |
1425 | SYN_REDUCED_FILTER_FUZZ : 0; | |
1da177e4 | 1426 | |
85615476 DK |
1427 | input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0); |
1428 | input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0); | |
1429 | input_abs_set_res(dev, x_code, priv->x_res); | |
1430 | input_abs_set_res(dev, y_code, priv->y_res); | |
1431 | } | |
1432 | ||
43e19888 HG |
1433 | static void set_input_params(struct psmouse *psmouse, |
1434 | struct synaptics_data *priv) | |
85615476 | 1435 | { |
43e19888 | 1436 | struct input_dev *dev = psmouse->dev; |
85615476 DK |
1437 | int i; |
1438 | ||
7968a5dd | 1439 | /* Things that apply to both modes */ |
c14890a8 | 1440 | __set_bit(INPUT_PROP_POINTER, dev->propbit); |
7968a5dd DD |
1441 | __set_bit(EV_KEY, dev->evbit); |
1442 | __set_bit(BTN_LEFT, dev->keybit); | |
1443 | __set_bit(BTN_RIGHT, dev->keybit); | |
c14890a8 | 1444 | |
7968a5dd DD |
1445 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
1446 | __set_bit(BTN_MIDDLE, dev->keybit); | |
1447 | ||
1448 | if (!priv->absolute_mode) { | |
1449 | /* Relative mode */ | |
1450 | __set_bit(EV_REL, dev->evbit); | |
1451 | __set_bit(REL_X, dev->relbit); | |
1452 | __set_bit(REL_Y, dev->relbit); | |
1453 | return; | |
1454 | } | |
1455 | ||
1456 | /* Absolute mode */ | |
b7802c5c | 1457 | __set_bit(EV_ABS, dev->evbit); |
85615476 | 1458 | set_abs_position_params(dev, priv, ABS_X, ABS_Y); |
1da177e4 | 1459 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); |
2a8e7710 | 1460 | |
e08d9afa HR |
1461 | if (cr48_profile_sensor) |
1462 | input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
1463 | ||
3cdfee9e | 1464 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { |
3cdfee9e DK |
1465 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, |
1466 | ABS_MT_POSITION_Y); | |
1467 | /* Image sensors can report per-contact pressure */ | |
1468 | input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
0b85bf78 | 1469 | input_mt_init_slots(dev, 2, INPUT_MT_POINTER); |
6b4b49fe DK |
1470 | |
1471 | /* Image sensors can signal 4 and 5 finger clicks */ | |
1472 | __set_bit(BTN_TOOL_QUADTAP, dev->keybit); | |
1473 | __set_bit(BTN_TOOL_QUINTTAP, dev->keybit); | |
3cdfee9e | 1474 | } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) { |
85615476 DK |
1475 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, |
1476 | ABS_MT_POSITION_Y); | |
e08d9afa HR |
1477 | /* |
1478 | * Profile sensor in CR-48 tracks contacts reasonably well, | |
1479 | * other non-image sensors with AGM use semi-mt. | |
1480 | */ | |
ae84197f | 1481 | input_mt_init_slots(dev, 2, |
e08d9afa HR |
1482 | INPUT_MT_POINTER | |
1483 | (cr48_profile_sensor ? | |
1484 | INPUT_MT_TRACK : INPUT_MT_SEMI_MT)); | |
fec6e525 HR |
1485 | } |
1486 | ||
2a8e7710 | 1487 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
58fb0218 | 1488 | input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0); |
1da177e4 | 1489 | |
b7802c5c DT |
1490 | __set_bit(BTN_TOUCH, dev->keybit); |
1491 | __set_bit(BTN_TOOL_FINGER, dev->keybit); | |
1da177e4 | 1492 | |
e42b6646 | 1493 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
b7802c5c DT |
1494 | __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); |
1495 | __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); | |
e42b6646 PH |
1496 | } |
1497 | ||
1da177e4 LT |
1498 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || |
1499 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
b7802c5c DT |
1500 | __set_bit(BTN_FORWARD, dev->keybit); |
1501 | __set_bit(BTN_BACK, dev->keybit); | |
1da177e4 LT |
1502 | } |
1503 | ||
1504 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
b7802c5c | 1505 | __set_bit(BTN_0 + i, dev->keybit); |
1da177e4 | 1506 | |
b7802c5c DT |
1507 | __clear_bit(EV_REL, dev->evbit); |
1508 | __clear_bit(REL_X, dev->relbit); | |
1509 | __clear_bit(REL_Y, dev->relbit); | |
ec20a022 | 1510 | |
5f57d67d | 1511 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { |
c14890a8 | 1512 | __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); |
2c75ada6 | 1513 | if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids)) |
e2f61102 | 1514 | __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit); |
5f57d67d TI |
1515 | /* Clickpads report only left button */ |
1516 | __clear_bit(BTN_RIGHT, dev->keybit); | |
1517 | __clear_bit(BTN_MIDDLE, dev->keybit); | |
1518 | } | |
1da177e4 LT |
1519 | } |
1520 | ||
7968a5dd DD |
1521 | static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse, |
1522 | void *data, char *buf) | |
1523 | { | |
1524 | struct synaptics_data *priv = psmouse->private; | |
1525 | ||
1526 | return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0'); | |
1527 | } | |
1528 | ||
1529 | static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse, | |
1530 | void *data, const char *buf, | |
1531 | size_t len) | |
1532 | { | |
1533 | struct synaptics_data *priv = psmouse->private; | |
1534 | unsigned int value; | |
1535 | int err; | |
1536 | ||
1537 | err = kstrtouint(buf, 10, &value); | |
1538 | if (err) | |
1539 | return err; | |
1540 | ||
1541 | if (value > 1) | |
1542 | return -EINVAL; | |
1543 | ||
1544 | if (value == priv->disable_gesture) | |
1545 | return len; | |
1546 | ||
1547 | priv->disable_gesture = value; | |
1548 | if (value) | |
1549 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
1550 | else | |
1551 | priv->mode &= ~SYN_BIT_DISABLE_GESTURE; | |
1552 | ||
1553 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
1554 | return -EIO; | |
1555 | ||
1556 | return len; | |
1557 | } | |
1558 | ||
1559 | PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL, | |
1560 | synaptics_show_disable_gesture, | |
1561 | synaptics_set_disable_gesture); | |
1562 | ||
1da177e4 LT |
1563 | static void synaptics_disconnect(struct psmouse *psmouse) |
1564 | { | |
7968a5dd DD |
1565 | struct synaptics_data *priv = psmouse->private; |
1566 | ||
1567 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1568 | device_remove_file(&psmouse->ps2dev.serio->dev, | |
1569 | &psmouse_attr_disable_gesture.dattr); | |
1570 | ||
1da177e4 | 1571 | synaptics_reset(psmouse); |
7968a5dd | 1572 | kfree(priv); |
1da177e4 LT |
1573 | psmouse->private = NULL; |
1574 | } | |
1575 | ||
1576 | static int synaptics_reconnect(struct psmouse *psmouse) | |
1577 | { | |
1578 | struct synaptics_data *priv = psmouse->private; | |
1579 | struct synaptics_data old_priv = *priv; | |
eeb06558 | 1580 | unsigned char param[2]; |
c63fe0a4 APF |
1581 | int retry = 0; |
1582 | int error; | |
1da177e4 | 1583 | |
c63fe0a4 APF |
1584 | do { |
1585 | psmouse_reset(psmouse); | |
8521478f DT |
1586 | if (retry) { |
1587 | /* | |
1588 | * On some boxes, right after resuming, the touchpad | |
1589 | * needs some time to finish initializing (I assume | |
1590 | * it needs time to calibrate) and start responding | |
1591 | * to Synaptics-specific queries, so let's wait a | |
1592 | * bit. | |
1593 | */ | |
1594 | ssleep(1); | |
1595 | } | |
eeb06558 | 1596 | ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID); |
c63fe0a4 APF |
1597 | error = synaptics_detect(psmouse, 0); |
1598 | } while (error && ++retry < 3); | |
4d368456 | 1599 | |
c63fe0a4 | 1600 | if (error) |
1da177e4 LT |
1601 | return -1; |
1602 | ||
c63fe0a4 | 1603 | if (retry > 1) |
b5d21704 | 1604 | psmouse_dbg(psmouse, "reconnected after %d tries\n", retry); |
c63fe0a4 | 1605 | |
1da177e4 | 1606 | if (synaptics_query_hardware(psmouse)) { |
b5d21704 | 1607 | psmouse_err(psmouse, "Unable to query device.\n"); |
1da177e4 LT |
1608 | return -1; |
1609 | } | |
1610 | ||
7968a5dd | 1611 | if (synaptics_set_mode(psmouse)) { |
b5d21704 | 1612 | psmouse_err(psmouse, "Unable to initialize device.\n"); |
1da177e4 LT |
1613 | return -1; |
1614 | } | |
1615 | ||
baddf589 APF |
1616 | if (old_priv.identity != priv->identity || |
1617 | old_priv.model_id != priv->model_id || | |
1618 | old_priv.capabilities != priv->capabilities || | |
1619 | old_priv.ext_cap != priv->ext_cap) { | |
b5d21704 DT |
1620 | psmouse_err(psmouse, |
1621 | "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n", | |
1622 | old_priv.identity, priv->identity, | |
1623 | old_priv.model_id, priv->model_id, | |
1624 | old_priv.capabilities, priv->capabilities, | |
1625 | old_priv.ext_cap, priv->ext_cap); | |
baddf589 APF |
1626 | return -1; |
1627 | } | |
1628 | ||
1da177e4 LT |
1629 | return 0; |
1630 | } | |
1631 | ||
7705d548 DT |
1632 | static bool impaired_toshiba_kbc; |
1633 | ||
c963156c | 1634 | static const struct dmi_system_id toshiba_dmi_table[] __initconst = { |
7705d548 | 1635 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) |
1da177e4 | 1636 | { |
9961e259 | 1637 | /* Toshiba Satellite */ |
1da177e4 LT |
1638 | .matches = { |
1639 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c | 1640 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
1da177e4 LT |
1641 | }, |
1642 | }, | |
9ba5eaaf | 1643 | { |
9961e259 | 1644 | /* Toshiba Dynabook */ |
9ba5eaaf SH |
1645 | .matches = { |
1646 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c RT |
1647 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), |
1648 | }, | |
1649 | }, | |
1650 | { | |
9961e259 | 1651 | /* Toshiba Portege M300 */ |
53a2670c RT |
1652 | .matches = { |
1653 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1654 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), | |
9ba5eaaf | 1655 | }, |
5f5eeff4 DT |
1656 | |
1657 | }, | |
1658 | { | |
9961e259 | 1659 | /* Toshiba Portege M300 */ |
5f5eeff4 DT |
1660 | .matches = { |
1661 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1662 | DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), | |
1663 | DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), | |
1664 | }, | |
1665 | ||
9ba5eaaf | 1666 | }, |
1da177e4 | 1667 | #endif |
70874867 | 1668 | { } |
7705d548 DT |
1669 | }; |
1670 | ||
ef8313bb AS |
1671 | static bool broken_olpc_ec; |
1672 | ||
c963156c | 1673 | static const struct dmi_system_id olpc_dmi_table[] __initconst = { |
ef8313bb AS |
1674 | #if defined(CONFIG_DMI) && defined(CONFIG_OLPC) |
1675 | { | |
1676 | /* OLPC XO-1 or XO-1.5 */ | |
1677 | .matches = { | |
1678 | DMI_MATCH(DMI_SYS_VENDOR, "OLPC"), | |
1679 | DMI_MATCH(DMI_PRODUCT_NAME, "XO"), | |
1680 | }, | |
1681 | }, | |
ef8313bb | 1682 | #endif |
70874867 | 1683 | { } |
ef8313bb AS |
1684 | }; |
1685 | ||
e08d9afa HR |
1686 | static const struct dmi_system_id __initconst cr48_dmi_table[] = { |
1687 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) | |
1688 | { | |
1689 | /* Cr-48 Chromebook (Codename Mario) */ | |
1690 | .matches = { | |
1691 | DMI_MATCH(DMI_SYS_VENDOR, "IEC"), | |
1692 | DMI_MATCH(DMI_PRODUCT_NAME, "Mario"), | |
1693 | }, | |
1694 | }, | |
1695 | #endif | |
1696 | { } | |
1697 | }; | |
1698 | ||
aa972409 DT |
1699 | static const struct dmi_system_id forcepad_dmi_table[] __initconst = { |
1700 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) | |
1701 | { | |
1702 | .matches = { | |
1703 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1704 | DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook Folio 1040 G1"), | |
1705 | }, | |
1706 | }, | |
1707 | #endif | |
1708 | { } | |
1709 | }; | |
1710 | ||
7705d548 DT |
1711 | void __init synaptics_module_init(void) |
1712 | { | |
1713 | impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); | |
ef8313bb | 1714 | broken_olpc_ec = dmi_check_system(olpc_dmi_table); |
e08d9afa | 1715 | cr48_profile_sensor = dmi_check_system(cr48_dmi_table); |
aa972409 DT |
1716 | |
1717 | /* | |
1718 | * Unfortunately ForcePad capability is not exported over PS/2, | |
1719 | * so we have to resort to checking DMI. | |
1720 | */ | |
1721 | is_forcepad = dmi_check_system(forcepad_dmi_table); | |
7705d548 | 1722 | } |
1da177e4 | 1723 | |
7968a5dd | 1724 | static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) |
1da177e4 LT |
1725 | { |
1726 | struct synaptics_data *priv; | |
7968a5dd | 1727 | int err = -1; |
1da177e4 | 1728 | |
ef8313bb | 1729 | /* |
83551c01 DD |
1730 | * The OLPC XO has issues with Synaptics' absolute mode; the constant |
1731 | * packet spew overloads the EC such that key presses on the keyboard | |
1732 | * are missed. Given that, don't even attempt to use Absolute mode. | |
1733 | * Relative mode seems to work just fine. | |
ef8313bb | 1734 | */ |
83551c01 | 1735 | if (absolute_mode && broken_olpc_ec) { |
b5d21704 DT |
1736 | psmouse_info(psmouse, |
1737 | "OLPC XO detected, not enabling Synaptics protocol.\n"); | |
ef8313bb AS |
1738 | return -ENODEV; |
1739 | } | |
1740 | ||
b39787a9 | 1741 | psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); |
1da177e4 | 1742 | if (!priv) |
6792cbbb | 1743 | return -ENOMEM; |
1da177e4 | 1744 | |
4d368456 AW |
1745 | psmouse_reset(psmouse); |
1746 | ||
1da177e4 | 1747 | if (synaptics_query_hardware(psmouse)) { |
b5d21704 | 1748 | psmouse_err(psmouse, "Unable to query device.\n"); |
1da177e4 LT |
1749 | goto init_fail; |
1750 | } | |
1751 | ||
7968a5dd DD |
1752 | priv->absolute_mode = absolute_mode; |
1753 | if (SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1754 | priv->disable_gesture = true; | |
1da177e4 | 1755 | |
7968a5dd DD |
1756 | if (synaptics_set_mode(psmouse)) { |
1757 | psmouse_err(psmouse, "Unable to initialize device.\n"); | |
fec6e525 HR |
1758 | goto init_fail; |
1759 | } | |
1760 | ||
1da177e4 LT |
1761 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; |
1762 | ||
b5d21704 | 1763 | psmouse_info(psmouse, |
c6bd9d46 | 1764 | "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n", |
b5d21704 DT |
1765 | SYN_ID_MODEL(priv->identity), |
1766 | SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), | |
1767 | priv->model_id, | |
c6bd9d46 DK |
1768 | priv->capabilities, priv->ext_cap, priv->ext_cap_0c, |
1769 | priv->board_id, priv->firmware_id); | |
409b7506 | 1770 | |
43e19888 | 1771 | set_input_params(psmouse, priv); |
1da177e4 | 1772 | |
887cc127 DT |
1773 | /* |
1774 | * Encode touchpad model so that it can be used to set | |
1775 | * input device->id.version and be visible to userspace. | |
1776 | * Because version is __u16 we have to drop something. | |
1777 | * Hardware info bits seem to be good candidates as they | |
1778 | * are documented to be for Synaptics corp. internal use. | |
1779 | */ | |
1780 | psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | | |
1781 | (priv->model_id & 0x000000ff); | |
1782 | ||
7968a5dd DD |
1783 | if (absolute_mode) { |
1784 | psmouse->protocol_handler = synaptics_process_byte; | |
1785 | psmouse->pktsize = 6; | |
1786 | } else { | |
1787 | /* Relative mode follows standard PS/2 mouse protocol */ | |
1788 | psmouse->protocol_handler = psmouse_process_byte; | |
1789 | psmouse->pktsize = 3; | |
1790 | } | |
1791 | ||
1da177e4 LT |
1792 | psmouse->set_rate = synaptics_set_rate; |
1793 | psmouse->disconnect = synaptics_disconnect; | |
1794 | psmouse->reconnect = synaptics_reconnect; | |
a1cec061 | 1795 | psmouse->cleanup = synaptics_reset; |
f0d5c6f4 DT |
1796 | /* Synaptics can usually stay in sync without extra help */ |
1797 | psmouse->resync_time = 0; | |
1da177e4 LT |
1798 | |
1799 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
1800 | synaptics_pt_create(psmouse); | |
1801 | ||
1da177e4 LT |
1802 | /* |
1803 | * Toshiba's KBC seems to have trouble handling data from | |
7ee99161 AS |
1804 | * Synaptics at full rate. Switch to a lower rate (roughly |
1805 | * the same rate as a standard PS/2 mouse). | |
1da177e4 | 1806 | */ |
7705d548 | 1807 | if (psmouse->rate >= 80 && impaired_toshiba_kbc) { |
b5d21704 DT |
1808 | psmouse_info(psmouse, |
1809 | "Toshiba %s detected, limiting rate to 40pps.\n", | |
1810 | dmi_get_system_info(DMI_PRODUCT_NAME)); | |
1da177e4 LT |
1811 | psmouse->rate = 40; |
1812 | } | |
1da177e4 | 1813 | |
7968a5dd DD |
1814 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) { |
1815 | err = device_create_file(&psmouse->ps2dev.serio->dev, | |
1816 | &psmouse_attr_disable_gesture.dattr); | |
1817 | if (err) { | |
1818 | psmouse_err(psmouse, | |
1819 | "Failed to create disable_gesture attribute (%d)", | |
1820 | err); | |
1821 | goto init_fail; | |
1822 | } | |
1823 | } | |
1824 | ||
1da177e4 LT |
1825 | return 0; |
1826 | ||
1827 | init_fail: | |
1828 | kfree(priv); | |
7968a5dd DD |
1829 | return err; |
1830 | } | |
1831 | ||
1832 | int synaptics_init(struct psmouse *psmouse) | |
1833 | { | |
1834 | return __synaptics_init(psmouse, true); | |
1835 | } | |
1836 | ||
1837 | int synaptics_init_relative(struct psmouse *psmouse) | |
1838 | { | |
1839 | return __synaptics_init(psmouse, false); | |
1da177e4 LT |
1840 | } |
1841 | ||
e4e6efd2 DD |
1842 | bool synaptics_supported(void) |
1843 | { | |
1844 | return true; | |
1845 | } | |
1846 | ||
55e3d922 AS |
1847 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
1848 | ||
7705d548 DT |
1849 | void __init synaptics_module_init(void) |
1850 | { | |
1851 | } | |
1852 | ||
55e3d922 AS |
1853 | int synaptics_init(struct psmouse *psmouse) |
1854 | { | |
1855 | return -ENOSYS; | |
1856 | } | |
1857 | ||
e4e6efd2 DD |
1858 | bool synaptics_supported(void) |
1859 | { | |
1860 | return false; | |
1861 | } | |
1862 | ||
55e3d922 | 1863 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ |