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 | ||
5b3089dd | 123 | #define ANY_BOARD_ID 0 |
0f68f39c HG |
124 | struct min_max_quirk { |
125 | const char * const *pnp_ids; | |
5b3089dd DM |
126 | struct { |
127 | unsigned long int min, max; | |
128 | } board_id; | |
0f68f39c HG |
129 | int x_min, x_max, y_min, y_max; |
130 | }; | |
131 | ||
132 | static const struct min_max_quirk min_max_pnpid_table[] = { | |
133 | { | |
134 | (const char * const []){"LEN0033", NULL}, | |
5b3089dd | 135 | {ANY_BOARD_ID, ANY_BOARD_ID}, |
0f68f39c HG |
136 | 1024, 5052, 2258, 4832 |
137 | }, | |
138 | { | |
b05f4d1c | 139 | (const char * const []){"LEN0042", NULL}, |
5b3089dd | 140 | {ANY_BOARD_ID, ANY_BOARD_ID}, |
0f68f39c HG |
141 | 1232, 5710, 1156, 4696 |
142 | }, | |
143 | { | |
8543cf1c PH |
144 | (const char * const []){"LEN0034", "LEN0036", "LEN0037", |
145 | "LEN0039", "LEN2002", "LEN2004", | |
146 | NULL}, | |
02e07492 | 147 | {ANY_BOARD_ID, 2961}, |
0f68f39c HG |
148 | 1024, 5112, 2024, 4832 |
149 | }, | |
150 | { | |
151 | (const char * const []){"LEN2001", NULL}, | |
5b3089dd | 152 | {ANY_BOARD_ID, ANY_BOARD_ID}, |
0f68f39c HG |
153 | 1024, 5022, 2508, 4832 |
154 | }, | |
bce4f9e7 BS |
155 | { |
156 | (const char * const []){"LEN2006", NULL}, | |
5b3089dd | 157 | {ANY_BOARD_ID, ANY_BOARD_ID}, |
bce4f9e7 BS |
158 | 1264, 5675, 1171, 4688 |
159 | }, | |
0f68f39c HG |
160 | { } |
161 | }; | |
162 | ||
43e19888 HG |
163 | /* This list has been kindly provided by Synaptics. */ |
164 | static const char * const topbuttonpad_pnp_ids[] = { | |
165 | "LEN0017", | |
166 | "LEN0018", | |
167 | "LEN0019", | |
168 | "LEN0023", | |
169 | "LEN002A", | |
170 | "LEN002B", | |
171 | "LEN002C", | |
172 | "LEN002D", | |
173 | "LEN002E", | |
174 | "LEN0033", /* Helix */ | |
0f68f39c | 175 | "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */ |
43e19888 HG |
176 | "LEN0035", /* X240 */ |
177 | "LEN0036", /* T440 */ | |
8543cf1c | 178 | "LEN0037", /* X1 Carbon 2nd */ |
43e19888 | 179 | "LEN0038", |
e4742b1e | 180 | "LEN0039", /* T440s */ |
43e19888 HG |
181 | "LEN0041", |
182 | "LEN0042", /* Yoga */ | |
183 | "LEN0045", | |
184 | "LEN0046", | |
185 | "LEN0047", | |
186 | "LEN0048", | |
187 | "LEN0049", | |
188 | "LEN2000", | |
0f68f39c | 189 | "LEN2001", /* Edge E431 */ |
e76aed9d | 190 | "LEN2002", /* Edge E531 */ |
43e19888 HG |
191 | "LEN2003", |
192 | "LEN2004", /* L440 */ | |
193 | "LEN2005", | |
194 | "LEN2006", | |
195 | "LEN2007", | |
196 | "LEN2008", | |
197 | "LEN2009", | |
198 | "LEN200A", | |
199 | "LEN200B", | |
200 | NULL | |
201 | }; | |
55e3d922 AS |
202 | |
203 | /***************************************************************************** | |
204 | * Synaptics communications functions | |
205 | ****************************************************************************/ | |
206 | ||
1a49a0a0 JD |
207 | /* |
208 | * Synaptics touchpads report the y coordinate from bottom to top, which is | |
209 | * opposite from what userspace expects. | |
210 | * This function is used to invert y before reporting. | |
211 | */ | |
212 | static int synaptics_invert_y(int y) | |
213 | { | |
214 | return YMAX_NOMINAL + YMIN_NOMINAL - y; | |
215 | } | |
216 | ||
1da177e4 | 217 | /* |
55e3d922 | 218 | * Send a command to the synpatics touchpad by special commands |
1da177e4 | 219 | */ |
55e3d922 | 220 | static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) |
1da177e4 | 221 | { |
55e3d922 | 222 | if (psmouse_sliced_command(psmouse, c)) |
1da177e4 | 223 | return -1; |
55e3d922 | 224 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) |
1da177e4 LT |
225 | return -1; |
226 | return 0; | |
227 | } | |
228 | ||
229 | /* | |
230 | * Read the model-id bytes from the touchpad | |
231 | * see also SYN_MODEL_* macros | |
232 | */ | |
233 | static int synaptics_model_id(struct psmouse *psmouse) | |
234 | { | |
235 | struct synaptics_data *priv = psmouse->private; | |
236 | unsigned char mi[3]; | |
237 | ||
238 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) | |
239 | return -1; | |
240 | priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; | |
241 | return 0; | |
242 | } | |
243 | ||
c6bd9d46 DK |
244 | /* |
245 | * Read the board id from the touchpad | |
246 | * The board id is encoded in the "QUERY MODES" response | |
247 | */ | |
248 | static int synaptics_board_id(struct psmouse *psmouse) | |
249 | { | |
250 | struct synaptics_data *priv = psmouse->private; | |
251 | unsigned char bid[3]; | |
252 | ||
253 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid)) | |
254 | return -1; | |
255 | priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; | |
256 | return 0; | |
257 | } | |
258 | ||
259 | /* | |
260 | * Read the firmware id from the touchpad | |
261 | */ | |
262 | static int synaptics_firmware_id(struct psmouse *psmouse) | |
263 | { | |
264 | struct synaptics_data *priv = psmouse->private; | |
265 | unsigned char fwid[3]; | |
266 | ||
267 | if (synaptics_send_cmd(psmouse, SYN_QUE_FIRMWARE_ID, fwid)) | |
268 | return -1; | |
269 | priv->firmware_id = (fwid[0] << 16) | (fwid[1] << 8) | fwid[2]; | |
270 | return 0; | |
271 | } | |
272 | ||
1da177e4 LT |
273 | /* |
274 | * Read the capability-bits from the touchpad | |
275 | * see also the SYN_CAP_* macros | |
276 | */ | |
277 | static int synaptics_capability(struct psmouse *psmouse) | |
278 | { | |
279 | struct synaptics_data *priv = psmouse->private; | |
280 | unsigned char cap[3]; | |
281 | ||
282 | if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) | |
283 | return -1; | |
284 | priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
5f57d67d TI |
285 | priv->ext_cap = priv->ext_cap_0c = 0; |
286 | ||
3619b8fe DT |
287 | /* |
288 | * Older firmwares had submodel ID fixed to 0x47 | |
289 | */ | |
290 | if (SYN_ID_FULL(priv->identity) < 0x705 && | |
291 | SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) { | |
1da177e4 | 292 | return -1; |
3619b8fe | 293 | } |
1da177e4 LT |
294 | |
295 | /* | |
296 | * Unless capExtended is set the rest of the flags should be ignored | |
297 | */ | |
298 | if (!SYN_CAP_EXTENDED(priv->capabilities)) | |
299 | priv->capabilities = 0; | |
300 | ||
301 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { | |
302 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { | |
b5d21704 DT |
303 | psmouse_warn(psmouse, |
304 | "device claims to have extended capabilities, but I'm not able to read them.\n"); | |
1da177e4 LT |
305 | } else { |
306 | priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
307 | ||
308 | /* | |
309 | * if nExtBtn is greater than 8 it should be considered | |
310 | * invalid and treated as 0 | |
311 | */ | |
312 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) | |
313 | priv->ext_cap &= 0xff0fff; | |
314 | } | |
315 | } | |
5f57d67d TI |
316 | |
317 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) { | |
318 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) { | |
b5d21704 DT |
319 | psmouse_warn(psmouse, |
320 | "device claims to have extended capability 0x0c, but I'm not able to read it.\n"); | |
5f57d67d TI |
321 | } else { |
322 | priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
323 | } | |
324 | } | |
325 | ||
1da177e4 LT |
326 | return 0; |
327 | } | |
328 | ||
329 | /* | |
330 | * Identify Touchpad | |
331 | * See also the SYN_ID_* macros | |
332 | */ | |
333 | static int synaptics_identify(struct psmouse *psmouse) | |
334 | { | |
335 | struct synaptics_data *priv = psmouse->private; | |
336 | unsigned char id[3]; | |
337 | ||
338 | if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) | |
339 | return -1; | |
340 | priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; | |
341 | if (SYN_ID_IS_SYNAPTICS(priv->identity)) | |
342 | return 0; | |
343 | return -1; | |
344 | } | |
345 | ||
ec20a022 | 346 | /* |
83ba9ea8 | 347 | * Read touchpad resolution and maximum reported coordinates |
ec20a022 TS |
348 | * Resolution is left zero if touchpad does not support the query |
349 | */ | |
421e08c4 | 350 | |
ec20a022 TS |
351 | static int synaptics_resolution(struct psmouse *psmouse) |
352 | { | |
353 | struct synaptics_data *priv = psmouse->private; | |
a66413fb | 354 | unsigned char resp[3]; |
ec20a022 TS |
355 | |
356 | if (SYN_ID_MAJOR(priv->identity) < 4) | |
bbddd199 | 357 | return 0; |
ec20a022 | 358 | |
a66413fb DT |
359 | if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) { |
360 | if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) { | |
361 | priv->x_res = resp[0]; /* x resolution in units/mm */ | |
362 | priv->y_res = resp[2]; /* y resolution in units/mm */ | |
83ba9ea8 DT |
363 | } |
364 | } | |
ec20a022 | 365 | |
83ba9ea8 DT |
366 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && |
367 | SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { | |
a66413fb | 368 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) { |
b5d21704 DT |
369 | psmouse_warn(psmouse, |
370 | "device claims to have max coordinates query, but I'm not able to read it.\n"); | |
a66413fb DT |
371 | } else { |
372 | priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); | |
373 | priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
9aff6598 DM |
374 | psmouse_info(psmouse, |
375 | "queried max coordinates: x [..%d], y [..%d]\n", | |
376 | priv->x_max, priv->y_max); | |
a66413fb DT |
377 | } |
378 | } | |
379 | ||
ac097930 DM |
380 | if (SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c) && |
381 | (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 || | |
382 | /* | |
383 | * Firmware v8.1 does not report proper number of extended | |
384 | * capabilities, but has been proven to report correct min | |
385 | * coordinates. | |
386 | */ | |
387 | SYN_ID_FULL(priv->identity) == 0x801)) { | |
a66413fb | 388 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) { |
b5d21704 DT |
389 | psmouse_warn(psmouse, |
390 | "device claims to have min coordinates query, but I'm not able to read it.\n"); | |
83ba9ea8 | 391 | } else { |
a66413fb DT |
392 | priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); |
393 | priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
9aff6598 DM |
394 | psmouse_info(psmouse, |
395 | "queried min coordinates: x [%d..], y [%d..]\n", | |
396 | priv->x_min, priv->y_min); | |
83ba9ea8 | 397 | } |
ec20a022 TS |
398 | } |
399 | ||
400 | return 0; | |
401 | } | |
402 | ||
8b04baba DM |
403 | /* |
404 | * Apply quirk(s) if the hardware matches | |
405 | */ | |
406 | ||
407 | static void synaptics_apply_quirks(struct psmouse *psmouse) | |
408 | { | |
409 | struct synaptics_data *priv = psmouse->private; | |
410 | int i; | |
411 | ||
412 | for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) { | |
5b3089dd DM |
413 | if (!psmouse_matches_pnp_id(psmouse, |
414 | min_max_pnpid_table[i].pnp_ids)) | |
415 | continue; | |
416 | ||
417 | if (min_max_pnpid_table[i].board_id.min != ANY_BOARD_ID && | |
418 | priv->board_id < min_max_pnpid_table[i].board_id.min) | |
419 | continue; | |
420 | ||
421 | if (min_max_pnpid_table[i].board_id.max != ANY_BOARD_ID && | |
422 | priv->board_id > min_max_pnpid_table[i].board_id.max) | |
423 | continue; | |
424 | ||
425 | priv->x_min = min_max_pnpid_table[i].x_min; | |
426 | priv->x_max = min_max_pnpid_table[i].x_max; | |
427 | priv->y_min = min_max_pnpid_table[i].y_min; | |
428 | priv->y_max = min_max_pnpid_table[i].y_max; | |
429 | psmouse_info(psmouse, | |
430 | "quirked min/max coordinates: x [%d..%d], y [%d..%d]\n", | |
431 | priv->x_min, priv->x_max, | |
432 | priv->y_min, priv->y_max); | |
433 | break; | |
8b04baba DM |
434 | } |
435 | } | |
436 | ||
1da177e4 LT |
437 | static int synaptics_query_hardware(struct psmouse *psmouse) |
438 | { | |
1da177e4 LT |
439 | if (synaptics_identify(psmouse)) |
440 | return -1; | |
441 | if (synaptics_model_id(psmouse)) | |
442 | return -1; | |
c6bd9d46 DK |
443 | if (synaptics_firmware_id(psmouse)) |
444 | return -1; | |
445 | if (synaptics_board_id(psmouse)) | |
446 | return -1; | |
1da177e4 LT |
447 | if (synaptics_capability(psmouse)) |
448 | return -1; | |
ec20a022 TS |
449 | if (synaptics_resolution(psmouse)) |
450 | return -1; | |
1da177e4 | 451 | |
8b04baba DM |
452 | synaptics_apply_quirks(psmouse); |
453 | ||
1da177e4 LT |
454 | return 0; |
455 | } | |
456 | ||
7968a5dd DD |
457 | static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse) |
458 | { | |
459 | static unsigned char param = 0xc8; | |
460 | struct synaptics_data *priv = psmouse->private; | |
461 | ||
899c612d BH |
462 | if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || |
463 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c))) | |
7968a5dd DD |
464 | return 0; |
465 | ||
466 | if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL)) | |
467 | return -1; | |
468 | ||
469 | if (ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE)) | |
470 | return -1; | |
471 | ||
472 | /* Advanced gesture mode also sends multi finger data */ | |
473 | priv->capabilities |= BIT(1); | |
474 | ||
475 | return 0; | |
476 | } | |
477 | ||
478 | static int synaptics_set_mode(struct psmouse *psmouse) | |
1da177e4 LT |
479 | { |
480 | struct synaptics_data *priv = psmouse->private; | |
481 | ||
7968a5dd DD |
482 | priv->mode = 0; |
483 | if (priv->absolute_mode) | |
484 | priv->mode |= SYN_BIT_ABSOLUTE_MODE; | |
485 | if (priv->disable_gesture) | |
1da177e4 | 486 | priv->mode |= SYN_BIT_DISABLE_GESTURE; |
7968a5dd DD |
487 | if (psmouse->rate >= 80) |
488 | priv->mode |= SYN_BIT_HIGH_RATE; | |
1da177e4 LT |
489 | if (SYN_CAP_EXTENDED(priv->capabilities)) |
490 | priv->mode |= SYN_BIT_W_MODE; | |
491 | ||
492 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
493 | return -1; | |
494 | ||
7968a5dd DD |
495 | if (priv->absolute_mode && |
496 | synaptics_set_advanced_gesture_mode(psmouse)) { | |
497 | psmouse_err(psmouse, "Advanced gesture mode init failed.\n"); | |
498 | return -1; | |
499 | } | |
500 | ||
1da177e4 LT |
501 | return 0; |
502 | } | |
503 | ||
504 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
505 | { | |
506 | struct synaptics_data *priv = psmouse->private; | |
507 | ||
508 | if (rate >= 80) { | |
509 | priv->mode |= SYN_BIT_HIGH_RATE; | |
510 | psmouse->rate = 80; | |
511 | } else { | |
512 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
513 | psmouse->rate = 40; | |
514 | } | |
515 | ||
516 | synaptics_mode_cmd(psmouse, priv->mode); | |
517 | } | |
518 | ||
519 | /***************************************************************************** | |
520 | * Synaptics pass-through PS/2 port support | |
521 | ****************************************************************************/ | |
522 | static int synaptics_pt_write(struct serio *serio, unsigned char c) | |
523 | { | |
524 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
525 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ | |
526 | ||
527 | if (psmouse_sliced_command(parent, c)) | |
528 | return -1; | |
529 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) | |
530 | return -1; | |
531 | return 0; | |
532 | } | |
533 | ||
a8b3c0f5 DT |
534 | static int synaptics_pt_start(struct serio *serio) |
535 | { | |
536 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
537 | struct synaptics_data *priv = parent->private; | |
538 | ||
539 | serio_pause_rx(parent->ps2dev.serio); | |
540 | priv->pt_port = serio; | |
541 | serio_continue_rx(parent->ps2dev.serio); | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
546 | static void synaptics_pt_stop(struct serio *serio) | |
547 | { | |
548 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
549 | struct synaptics_data *priv = parent->private; | |
550 | ||
551 | serio_pause_rx(parent->ps2dev.serio); | |
552 | priv->pt_port = NULL; | |
553 | serio_continue_rx(parent->ps2dev.serio); | |
554 | } | |
555 | ||
556 | static int synaptics_is_pt_packet(unsigned char *buf) | |
1da177e4 LT |
557 | { |
558 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
559 | } | |
560 | ||
561 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) | |
562 | { | |
563 | struct psmouse *child = serio_get_drvdata(ptport); | |
564 | ||
565 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
7d12e780 DH |
566 | serio_interrupt(ptport, packet[1], 0); |
567 | serio_interrupt(ptport, packet[4], 0); | |
568 | serio_interrupt(ptport, packet[5], 0); | |
33fdfa97 | 569 | if (child->pktsize == 4) |
7d12e780 | 570 | serio_interrupt(ptport, packet[2], 0); |
1da177e4 | 571 | } else |
7d12e780 | 572 | serio_interrupt(ptport, packet[1], 0); |
1da177e4 LT |
573 | } |
574 | ||
575 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
576 | { | |
1da177e4 | 577 | struct synaptics_data *priv = psmouse->private; |
a8b3c0f5 | 578 | struct psmouse *child = serio_get_drvdata(priv->pt_port); |
1da177e4 LT |
579 | |
580 | /* adjust the touchpad to child's choice of protocol */ | |
581 | if (child) { | |
33fdfa97 | 582 | if (child->pktsize == 4) |
1da177e4 LT |
583 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
584 | else | |
585 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
586 | ||
587 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
b5d21704 DT |
588 | psmouse_warn(psmouse, |
589 | "failed to switch guest protocol\n"); | |
1da177e4 LT |
590 | } |
591 | } | |
592 | ||
593 | static void synaptics_pt_create(struct psmouse *psmouse) | |
594 | { | |
595 | struct serio *serio; | |
596 | ||
b39787a9 | 597 | serio = kzalloc(sizeof(struct serio), GFP_KERNEL); |
1da177e4 | 598 | if (!serio) { |
b5d21704 DT |
599 | psmouse_err(psmouse, |
600 | "not enough memory for pass-through port\n"); | |
1da177e4 LT |
601 | return; |
602 | } | |
603 | ||
1da177e4 LT |
604 | serio->id.type = SERIO_PS_PSTHRU; |
605 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); | |
606 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); | |
607 | serio->write = synaptics_pt_write; | |
a8b3c0f5 DT |
608 | serio->start = synaptics_pt_start; |
609 | serio->stop = synaptics_pt_stop; | |
1da177e4 LT |
610 | serio->parent = psmouse->ps2dev.serio; |
611 | ||
612 | psmouse->pt_activate = synaptics_pt_activate; | |
613 | ||
b5d21704 DT |
614 | psmouse_info(psmouse, "serio: %s port at %s\n", |
615 | serio->name, psmouse->phys); | |
1da177e4 LT |
616 | serio_register_port(serio); |
617 | } | |
618 | ||
619 | /***************************************************************************** | |
620 | * Functions to interpret the absolute mode packets | |
621 | ****************************************************************************/ | |
622 | ||
a6ca40c1 DK |
623 | static void synaptics_mt_state_set(struct synaptics_mt_state *state, int count, |
624 | int sgm, int agm) | |
625 | { | |
626 | state->count = count; | |
627 | state->sgm = sgm; | |
628 | state->agm = agm; | |
629 | } | |
630 | ||
7afdb842 | 631 | static void synaptics_parse_agm(const unsigned char buf[], |
a6ca40c1 DK |
632 | struct synaptics_data *priv, |
633 | struct synaptics_hw_state *hw) | |
7afdb842 DK |
634 | { |
635 | struct synaptics_hw_state *agm = &priv->agm; | |
a6ca40c1 DK |
636 | int agm_packet_type; |
637 | ||
638 | agm_packet_type = (buf[5] & 0x30) >> 4; | |
639 | switch (agm_packet_type) { | |
640 | case 1: | |
641 | /* Gesture packet: (x, y, z) half resolution */ | |
642 | agm->w = hw->w; | |
643 | agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1; | |
644 | agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1; | |
645 | agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1; | |
646 | break; | |
647 | ||
648 | case 2: | |
649 | /* AGM-CONTACT packet: (count, sgm, agm) */ | |
650 | synaptics_mt_state_set(&agm->mt_state, buf[1], buf[2], buf[4]); | |
651 | break; | |
652 | ||
653 | default: | |
654 | break; | |
655 | } | |
4dc772d2 DK |
656 | |
657 | /* Record that at least one AGM has been received since last SGM */ | |
658 | priv->agm_pending = true; | |
7afdb842 DK |
659 | } |
660 | ||
dc5465dc DT |
661 | static void synaptics_parse_ext_buttons(const unsigned char buf[], |
662 | struct synaptics_data *priv, | |
663 | struct synaptics_hw_state *hw) | |
664 | { | |
665 | unsigned int ext_bits = | |
666 | (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) + 1) >> 1; | |
667 | unsigned int ext_mask = GENMASK(ext_bits - 1, 0); | |
668 | ||
669 | hw->ext_buttons = buf[4] & ext_mask; | |
670 | hw->ext_buttons |= (buf[5] & ext_mask) << ext_bits; | |
671 | } | |
672 | ||
aa972409 DT |
673 | static bool is_forcepad; |
674 | ||
fec6e525 HR |
675 | static int synaptics_parse_hw_state(const unsigned char buf[], |
676 | struct synaptics_data *priv, | |
677 | struct synaptics_hw_state *hw) | |
1da177e4 LT |
678 | { |
679 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
680 | ||
681 | if (SYN_MODEL_NEWABS(priv->model_id)) { | |
1da177e4 LT |
682 | hw->w = (((buf[0] & 0x30) >> 2) | |
683 | ((buf[0] & 0x04) >> 1) | | |
684 | ((buf[3] & 0x04) >> 2)); | |
685 | ||
5715fc76 DT |
686 | if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || |
687 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) && | |
688 | hw->w == 2) { | |
689 | synaptics_parse_agm(buf, priv, hw); | |
690 | return 1; | |
691 | } | |
692 | ||
693 | hw->x = (((buf[3] & 0x10) << 8) | | |
694 | ((buf[1] & 0x0f) << 8) | | |
695 | buf[4]); | |
696 | hw->y = (((buf[3] & 0x20) << 7) | | |
697 | ((buf[1] & 0xf0) << 4) | | |
698 | buf[5]); | |
699 | hw->z = buf[2]; | |
700 | ||
1da177e4 LT |
701 | hw->left = (buf[0] & 0x01) ? 1 : 0; |
702 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
703 | ||
aa972409 | 704 | if (is_forcepad) { |
5715fc76 DT |
705 | /* |
706 | * ForcePads, like Clickpads, use middle button | |
707 | * bits to report primary button clicks. | |
708 | * Unfortunately they report primary button not | |
709 | * only when user presses on the pad above certain | |
710 | * threshold, but also when there are more than one | |
711 | * finger on the touchpad, which interferes with | |
712 | * out multi-finger gestures. | |
713 | */ | |
714 | if (hw->z == 0) { | |
715 | /* No contacts */ | |
716 | priv->press = priv->report_press = false; | |
717 | } else if (hw->w >= 4 && ((buf[0] ^ buf[3]) & 0x01)) { | |
718 | /* | |
719 | * Single-finger touch with pressure above | |
720 | * the threshold. If pressure stays long | |
721 | * enough, we'll start reporting primary | |
722 | * button. We rely on the device continuing | |
723 | * sending data even if finger does not | |
724 | * move. | |
725 | */ | |
726 | if (!priv->press) { | |
727 | priv->press_start = jiffies; | |
728 | priv->press = true; | |
729 | } else if (time_after(jiffies, | |
730 | priv->press_start + | |
731 | msecs_to_jiffies(50))) { | |
732 | priv->report_press = true; | |
733 | } | |
734 | } else { | |
735 | priv->press = false; | |
736 | } | |
737 | ||
738 | hw->left = priv->report_press; | |
739 | ||
740 | } else if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { | |
5f57d67d TI |
741 | /* |
742 | * Clickpad's button is transmitted as middle button, | |
743 | * however, since it is primary button, we will report | |
744 | * it as BTN_LEFT. | |
745 | */ | |
746 | hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
747 | ||
748 | } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
1da177e4 LT |
749 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
750 | if (hw->w == 2) | |
751 | hw->scroll = (signed char)(buf[1]); | |
752 | } | |
753 | ||
754 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
755 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
756 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
757 | } | |
758 | ||
dc5465dc | 759 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 0 && |
1da177e4 | 760 | ((buf[0] ^ buf[3]) & 0x02)) { |
dc5465dc | 761 | synaptics_parse_ext_buttons(buf, priv, hw); |
1da177e4 LT |
762 | } |
763 | } else { | |
764 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
765 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
766 | ||
767 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
768 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
769 | ||
770 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
771 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
772 | } | |
fec6e525 | 773 | |
824efd37 SF |
774 | /* |
775 | * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE | |
776 | * is used by some firmware to indicate a finger at the edge of | |
777 | * the touchpad whose precise position cannot be determined, so | |
778 | * convert these values to the maximum axis value. | |
779 | */ | |
c0394506 SF |
780 | if (hw->x > X_MAX_POSITIVE) |
781 | hw->x -= 1 << ABS_POS_BITS; | |
824efd37 SF |
782 | else if (hw->x == X_MAX_POSITIVE) |
783 | hw->x = XMAX; | |
784 | ||
c0394506 SF |
785 | if (hw->y > Y_MAX_POSITIVE) |
786 | hw->y -= 1 << ABS_POS_BITS; | |
824efd37 SF |
787 | else if (hw->y == Y_MAX_POSITIVE) |
788 | hw->y = YMAX; | |
c0394506 | 789 | |
fec6e525 HR |
790 | return 0; |
791 | } | |
792 | ||
bea9f0ff DK |
793 | static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot, |
794 | bool active, int x, int y) | |
fec6e525 HR |
795 | { |
796 | input_mt_slot(dev, slot); | |
797 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); | |
798 | if (active) { | |
799 | input_report_abs(dev, ABS_MT_POSITION_X, x); | |
6de58dd6 | 800 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y)); |
fec6e525 HR |
801 | } |
802 | } | |
803 | ||
804 | static void synaptics_report_semi_mt_data(struct input_dev *dev, | |
805 | const struct synaptics_hw_state *a, | |
806 | const struct synaptics_hw_state *b, | |
807 | int num_fingers) | |
808 | { | |
809 | if (num_fingers >= 2) { | |
bea9f0ff DK |
810 | synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x), |
811 | min(a->y, b->y)); | |
812 | synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x), | |
813 | max(a->y, b->y)); | |
fec6e525 | 814 | } else if (num_fingers == 1) { |
bea9f0ff DK |
815 | synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y); |
816 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 817 | } else { |
bea9f0ff DK |
818 | synaptics_report_semi_mt_slot(dev, 0, false, 0, 0); |
819 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 820 | } |
1da177e4 LT |
821 | } |
822 | ||
3cdfee9e DK |
823 | static void synaptics_report_buttons(struct psmouse *psmouse, |
824 | const struct synaptics_hw_state *hw) | |
825 | { | |
826 | struct input_dev *dev = psmouse->dev; | |
827 | struct synaptics_data *priv = psmouse->private; | |
dc5465dc | 828 | int ext_bits = (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) + 1) >> 1; |
3cdfee9e DK |
829 | int i; |
830 | ||
831 | input_report_key(dev, BTN_LEFT, hw->left); | |
832 | input_report_key(dev, BTN_RIGHT, hw->right); | |
833 | ||
834 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
835 | input_report_key(dev, BTN_MIDDLE, hw->middle); | |
836 | ||
837 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
838 | input_report_key(dev, BTN_FORWARD, hw->up); | |
839 | input_report_key(dev, BTN_BACK, hw->down); | |
840 | } | |
841 | ||
dc5465dc DT |
842 | for (i = 0; i < ext_bits; i++) { |
843 | input_report_key(dev, BTN_0 + 2 * i, | |
844 | hw->ext_buttons & (1 << i)); | |
845 | input_report_key(dev, BTN_1 + 2 * i, | |
846 | hw->ext_buttons & (1 << (i + ext_bits))); | |
847 | } | |
3cdfee9e DK |
848 | } |
849 | ||
850 | static void synaptics_report_slot(struct input_dev *dev, int slot, | |
851 | const struct synaptics_hw_state *hw) | |
852 | { | |
853 | input_mt_slot(dev, slot); | |
854 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, (hw != NULL)); | |
855 | if (!hw) | |
856 | return; | |
857 | ||
858 | input_report_abs(dev, ABS_MT_POSITION_X, hw->x); | |
859 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(hw->y)); | |
860 | input_report_abs(dev, ABS_MT_PRESSURE, hw->z); | |
861 | } | |
862 | ||
863 | static void synaptics_report_mt_data(struct psmouse *psmouse, | |
4dc772d2 | 864 | struct synaptics_mt_state *mt_state, |
3cdfee9e DK |
865 | const struct synaptics_hw_state *sgm) |
866 | { | |
867 | struct input_dev *dev = psmouse->dev; | |
868 | struct synaptics_data *priv = psmouse->private; | |
869 | struct synaptics_hw_state *agm = &priv->agm; | |
4dc772d2 | 870 | struct synaptics_mt_state *old = &priv->mt_state; |
3cdfee9e | 871 | |
4dc772d2 | 872 | switch (mt_state->count) { |
3cdfee9e DK |
873 | case 0: |
874 | synaptics_report_slot(dev, 0, NULL); | |
875 | synaptics_report_slot(dev, 1, NULL); | |
876 | break; | |
877 | case 1: | |
4dc772d2 DK |
878 | if (mt_state->sgm == -1) { |
879 | synaptics_report_slot(dev, 0, NULL); | |
880 | synaptics_report_slot(dev, 1, NULL); | |
881 | } else if (mt_state->sgm == 0) { | |
882 | synaptics_report_slot(dev, 0, sgm); | |
883 | synaptics_report_slot(dev, 1, NULL); | |
884 | } else { | |
885 | synaptics_report_slot(dev, 0, NULL); | |
886 | synaptics_report_slot(dev, 1, sgm); | |
887 | } | |
3cdfee9e | 888 | break; |
4dc772d2 DK |
889 | default: |
890 | /* | |
891 | * If the finger slot contained in SGM is valid, and either | |
48064bdc DK |
892 | * hasn't changed, or is new, or the old SGM has now moved to |
893 | * AGM, then report SGM in MTB slot 0. | |
4dc772d2 DK |
894 | * Otherwise, empty MTB slot 0. |
895 | */ | |
896 | if (mt_state->sgm != -1 && | |
48064bdc DK |
897 | (mt_state->sgm == old->sgm || |
898 | old->sgm == -1 || mt_state->agm == old->sgm)) | |
4dc772d2 DK |
899 | synaptics_report_slot(dev, 0, sgm); |
900 | else | |
901 | synaptics_report_slot(dev, 0, NULL); | |
902 | ||
903 | /* | |
904 | * If the finger slot contained in AGM is valid, and either | |
905 | * hasn't changed, or is new, then report AGM in MTB slot 1. | |
906 | * Otherwise, empty MTB slot 1. | |
48064bdc DK |
907 | * |
908 | * However, in the case where the AGM is new, make sure that | |
909 | * that it is either the same as the old SGM, or there was no | |
910 | * SGM. | |
911 | * | |
912 | * Otherwise, if the SGM was just 1, and the new AGM is 2, then | |
913 | * the new AGM will keep the old SGM's tracking ID, which can | |
914 | * cause apparent drumroll. This happens if in the following | |
915 | * valid finger sequence: | |
916 | * | |
917 | * Action SGM AGM (MTB slot:Contact) | |
918 | * 1. Touch contact 0 (0:0) | |
919 | * 2. Touch contact 1 (0:0, 1:1) | |
920 | * 3. Lift contact 0 (1:1) | |
921 | * 4. Touch contacts 2,3 (0:2, 1:3) | |
922 | * | |
923 | * In step 4, contact 3, in AGM must not be given the same | |
924 | * tracking ID as contact 1 had in step 3. To avoid this, | |
925 | * the first agm with contact 3 is dropped and slot 1 is | |
926 | * invalidated (tracking ID = -1). | |
4dc772d2 DK |
927 | */ |
928 | if (mt_state->agm != -1 && | |
48064bdc DK |
929 | (mt_state->agm == old->agm || |
930 | (old->agm == -1 && | |
931 | (old->sgm == -1 || mt_state->agm == old->sgm)))) | |
4dc772d2 DK |
932 | synaptics_report_slot(dev, 1, agm); |
933 | else | |
934 | synaptics_report_slot(dev, 1, NULL); | |
3cdfee9e DK |
935 | break; |
936 | } | |
937 | ||
938 | /* Don't use active slot count to generate BTN_TOOL events. */ | |
939 | input_mt_report_pointer_emulation(dev, false); | |
940 | ||
941 | /* Send the number of fingers reported by touchpad itself. */ | |
4dc772d2 | 942 | input_mt_report_finger_count(dev, mt_state->count); |
3cdfee9e DK |
943 | |
944 | synaptics_report_buttons(psmouse, sgm); | |
945 | ||
946 | input_sync(dev); | |
947 | } | |
948 | ||
4dc772d2 DK |
949 | /* Handle case where mt_state->count = 0 */ |
950 | static void synaptics_image_sensor_0f(struct synaptics_data *priv, | |
951 | struct synaptics_mt_state *mt_state) | |
952 | { | |
953 | synaptics_mt_state_set(mt_state, 0, -1, -1); | |
954 | priv->mt_state_lost = false; | |
955 | } | |
956 | ||
957 | /* Handle case where mt_state->count = 1 */ | |
958 | static void synaptics_image_sensor_1f(struct synaptics_data *priv, | |
959 | struct synaptics_mt_state *mt_state) | |
960 | { | |
961 | struct synaptics_hw_state *agm = &priv->agm; | |
962 | struct synaptics_mt_state *old = &priv->mt_state; | |
963 | ||
964 | /* | |
965 | * If the last AGM was (0,0,0), and there is only one finger left, | |
966 | * then we absolutely know that SGM contains slot 0, and all other | |
967 | * fingers have been removed. | |
968 | */ | |
969 | if (priv->agm_pending && agm->z == 0) { | |
970 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
971 | priv->mt_state_lost = false; | |
972 | return; | |
973 | } | |
974 | ||
975 | switch (old->count) { | |
976 | case 0: | |
977 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
978 | break; | |
979 | case 1: | |
980 | /* | |
981 | * If mt_state_lost, then the previous transition was 3->1, | |
982 | * and SGM now contains either slot 0 or 1, but we don't know | |
983 | * which. So, we just assume that the SGM now contains slot 1. | |
984 | * | |
985 | * If pending AGM and either: | |
986 | * (a) the previous SGM slot contains slot 0, or | |
987 | * (b) there was no SGM slot | |
988 | * then, the SGM now contains slot 1 | |
989 | * | |
990 | * Case (a) happens with very rapid "drum roll" gestures, where | |
991 | * slot 0 finger is lifted and a new slot 1 finger touches | |
992 | * within one reporting interval. | |
993 | * | |
994 | * Case (b) happens if initially two or more fingers tap | |
995 | * briefly, and all but one lift before the end of the first | |
996 | * reporting interval. | |
997 | * | |
998 | * (In both these cases, slot 0 will becomes empty, so SGM | |
999 | * contains slot 1 with the new finger) | |
1000 | * | |
1001 | * Else, if there was no previous SGM, it now contains slot 0. | |
1002 | * | |
1003 | * Otherwise, SGM still contains the same slot. | |
1004 | */ | |
1005 | if (priv->mt_state_lost || | |
1006 | (priv->agm_pending && old->sgm <= 0)) | |
1007 | synaptics_mt_state_set(mt_state, 1, 1, -1); | |
1008 | else if (old->sgm == -1) | |
1009 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
1010 | break; | |
1011 | case 2: | |
1012 | /* | |
1013 | * If mt_state_lost, we don't know which finger SGM contains. | |
1014 | * | |
1015 | * So, report 1 finger, but with both slots empty. | |
1016 | * We will use slot 1 on subsequent 1->1 | |
1017 | */ | |
1018 | if (priv->mt_state_lost) { | |
1019 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
1020 | break; | |
1021 | } | |
1022 | /* | |
1023 | * Since the last AGM was NOT (0,0,0), it was the finger in | |
1024 | * slot 0 that has been removed. | |
1025 | * So, SGM now contains previous AGM's slot, and AGM is now | |
1026 | * empty. | |
1027 | */ | |
1028 | synaptics_mt_state_set(mt_state, 1, old->agm, -1); | |
1029 | break; | |
1030 | case 3: | |
1031 | /* | |
1032 | * Since last AGM was not (0,0,0), we don't know which finger | |
1033 | * is left. | |
1034 | * | |
1035 | * So, report 1 finger, but with both slots empty. | |
1036 | * We will use slot 1 on subsequent 1->1 | |
1037 | */ | |
1038 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
1039 | priv->mt_state_lost = true; | |
1040 | break; | |
6b4b49fe DK |
1041 | case 4: |
1042 | case 5: | |
1043 | /* mt_state was updated by AGM-CONTACT packet */ | |
1044 | break; | |
4dc772d2 DK |
1045 | } |
1046 | } | |
1047 | ||
1048 | /* Handle case where mt_state->count = 2 */ | |
1049 | static void synaptics_image_sensor_2f(struct synaptics_data *priv, | |
1050 | struct synaptics_mt_state *mt_state) | |
1051 | { | |
1052 | struct synaptics_mt_state *old = &priv->mt_state; | |
1053 | ||
1054 | switch (old->count) { | |
1055 | case 0: | |
1056 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
1057 | break; | |
1058 | case 1: | |
1059 | /* | |
1060 | * If previous SGM contained slot 1 or higher, SGM now contains | |
1061 | * slot 0 (the newly touching finger) and AGM contains SGM's | |
1062 | * previous slot. | |
1063 | * | |
1064 | * Otherwise, SGM still contains slot 0 and AGM now contains | |
1065 | * slot 1. | |
1066 | */ | |
1067 | if (old->sgm >= 1) | |
1068 | synaptics_mt_state_set(mt_state, 2, 0, old->sgm); | |
1069 | else | |
1070 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
1071 | break; | |
1072 | case 2: | |
1073 | /* | |
1074 | * If mt_state_lost, SGM now contains either finger 1 or 2, but | |
1075 | * we don't know which. | |
1076 | * So, we just assume that the SGM contains slot 0 and AGM 1. | |
1077 | */ | |
1078 | if (priv->mt_state_lost) | |
1079 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
1080 | /* | |
1081 | * Otherwise, use the same mt_state, since it either hasn't | |
1082 | * changed, or was updated by a recently received AGM-CONTACT | |
1083 | * packet. | |
1084 | */ | |
1085 | break; | |
1086 | case 3: | |
1087 | /* | |
1088 | * 3->2 transitions have two unsolvable problems: | |
1089 | * 1) no indication is given which finger was removed | |
1090 | * 2) no way to tell if agm packet was for finger 3 | |
1091 | * before 3->2, or finger 2 after 3->2. | |
1092 | * | |
1093 | * So, report 2 fingers, but empty all slots. | |
1094 | * We will guess slots [0,1] on subsequent 2->2. | |
1095 | */ | |
1096 | synaptics_mt_state_set(mt_state, 2, -1, -1); | |
1097 | priv->mt_state_lost = true; | |
1098 | break; | |
6b4b49fe DK |
1099 | case 4: |
1100 | case 5: | |
1101 | /* mt_state was updated by AGM-CONTACT packet */ | |
1102 | break; | |
4dc772d2 DK |
1103 | } |
1104 | } | |
1105 | ||
1106 | /* Handle case where mt_state->count = 3 */ | |
1107 | static void synaptics_image_sensor_3f(struct synaptics_data *priv, | |
1108 | struct synaptics_mt_state *mt_state) | |
1109 | { | |
1110 | struct synaptics_mt_state *old = &priv->mt_state; | |
1111 | ||
1112 | switch (old->count) { | |
1113 | case 0: | |
1114 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1115 | break; | |
1116 | case 1: | |
1117 | /* | |
1118 | * If previous SGM contained slot 2 or higher, SGM now contains | |
1119 | * slot 0 (one of the newly touching fingers) and AGM contains | |
1120 | * SGM's previous slot. | |
1121 | * | |
1122 | * Otherwise, SGM now contains slot 0 and AGM contains slot 2. | |
1123 | */ | |
1124 | if (old->sgm >= 2) | |
1125 | synaptics_mt_state_set(mt_state, 3, 0, old->sgm); | |
1126 | else | |
1127 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1128 | break; | |
1129 | case 2: | |
6b4b49fe DK |
1130 | /* |
1131 | * If the AGM previously contained slot 3 or higher, then the | |
1132 | * newly touching finger is in the lowest available slot. | |
1133 | * | |
1134 | * If SGM was previously 1 or higher, then the new SGM is | |
1135 | * now slot 0 (with a new finger), otherwise, the new finger | |
1136 | * is now in a hidden slot between 0 and AGM's slot. | |
1137 | * | |
1138 | * In all such cases, the SGM now contains slot 0, and the AGM | |
1139 | * continues to contain the same slot as before. | |
1140 | */ | |
1141 | if (old->agm >= 3) { | |
1142 | synaptics_mt_state_set(mt_state, 3, 0, old->agm); | |
1143 | break; | |
1144 | } | |
1145 | ||
4dc772d2 DK |
1146 | /* |
1147 | * After some 3->1 and all 3->2 transitions, we lose track | |
1148 | * of which slot is reported by SGM and AGM. | |
1149 | * | |
1150 | * For 2->3 in this state, report 3 fingers, but empty all | |
1151 | * slots, and we will guess (0,2) on a subsequent 0->3. | |
1152 | * | |
1153 | * To userspace, the resulting transition will look like: | |
1154 | * 2:[0,1] -> 3:[-1,-1] -> 3:[0,2] | |
1155 | */ | |
1156 | if (priv->mt_state_lost) { | |
1157 | synaptics_mt_state_set(mt_state, 3, -1, -1); | |
1158 | break; | |
1159 | } | |
1160 | ||
1161 | /* | |
1162 | * If the (SGM,AGM) really previously contained slots (0, 1), | |
1163 | * then we cannot know what slot was just reported by the AGM, | |
1164 | * because the 2->3 transition can occur either before or after | |
1165 | * the AGM packet. Thus, this most recent AGM could contain | |
1166 | * either the same old slot 1 or the new slot 2. | |
1167 | * Subsequent AGMs will be reporting slot 2. | |
1168 | * | |
1169 | * To userspace, the resulting transition will look like: | |
1170 | * 2:[0,1] -> 3:[0,-1] -> 3:[0,2] | |
1171 | */ | |
1172 | synaptics_mt_state_set(mt_state, 3, 0, -1); | |
1173 | break; | |
1174 | case 3: | |
1175 | /* | |
1176 | * If, for whatever reason, the previous agm was invalid, | |
1177 | * Assume SGM now contains slot 0, AGM now contains slot 2. | |
1178 | */ | |
1179 | if (old->agm <= 2) | |
1180 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1181 | /* | |
1182 | * mt_state either hasn't changed, or was updated by a recently | |
1183 | * received AGM-CONTACT packet. | |
1184 | */ | |
1185 | break; | |
6b4b49fe DK |
1186 | |
1187 | case 4: | |
1188 | case 5: | |
1189 | /* mt_state was updated by AGM-CONTACT packet */ | |
1190 | break; | |
4dc772d2 DK |
1191 | } |
1192 | } | |
1193 | ||
6b4b49fe DK |
1194 | /* Handle case where mt_state->count = 4, or = 5 */ |
1195 | static void synaptics_image_sensor_45f(struct synaptics_data *priv, | |
1196 | struct synaptics_mt_state *mt_state) | |
1197 | { | |
1198 | /* mt_state was updated correctly by AGM-CONTACT packet */ | |
1199 | priv->mt_state_lost = false; | |
1200 | } | |
1201 | ||
3cdfee9e DK |
1202 | static void synaptics_image_sensor_process(struct psmouse *psmouse, |
1203 | struct synaptics_hw_state *sgm) | |
1204 | { | |
4dc772d2 DK |
1205 | struct synaptics_data *priv = psmouse->private; |
1206 | struct synaptics_hw_state *agm = &priv->agm; | |
1207 | struct synaptics_mt_state mt_state; | |
3cdfee9e | 1208 | |
4dc772d2 DK |
1209 | /* Initialize using current mt_state (as updated by last agm) */ |
1210 | mt_state = agm->mt_state; | |
1211 | ||
1212 | /* | |
1213 | * Update mt_state using the new finger count and current mt_state. | |
1214 | */ | |
3cdfee9e | 1215 | if (sgm->z == 0) |
4dc772d2 | 1216 | synaptics_image_sensor_0f(priv, &mt_state); |
3cdfee9e | 1217 | else if (sgm->w >= 4) |
4dc772d2 | 1218 | synaptics_image_sensor_1f(priv, &mt_state); |
3cdfee9e | 1219 | else if (sgm->w == 0) |
4dc772d2 | 1220 | synaptics_image_sensor_2f(priv, &mt_state); |
6b4b49fe | 1221 | else if (sgm->w == 1 && mt_state.count <= 3) |
4dc772d2 | 1222 | synaptics_image_sensor_3f(priv, &mt_state); |
6b4b49fe DK |
1223 | else |
1224 | synaptics_image_sensor_45f(priv, &mt_state); | |
3cdfee9e DK |
1225 | |
1226 | /* Send resulting input events to user space */ | |
4dc772d2 DK |
1227 | synaptics_report_mt_data(psmouse, &mt_state, sgm); |
1228 | ||
1229 | /* Store updated mt_state */ | |
1230 | priv->mt_state = agm->mt_state = mt_state; | |
1231 | priv->agm_pending = false; | |
3cdfee9e DK |
1232 | } |
1233 | ||
e08d9afa HR |
1234 | static void synaptics_profile_sensor_process(struct psmouse *psmouse, |
1235 | struct synaptics_hw_state *sgm, | |
1236 | int num_fingers) | |
1237 | { | |
1238 | struct input_dev *dev = psmouse->dev; | |
1239 | struct synaptics_data *priv = psmouse->private; | |
1240 | struct synaptics_hw_state *hw[2] = { sgm, &priv->agm }; | |
1241 | struct input_mt_pos pos[2]; | |
1242 | int slot[2], nsemi, i; | |
1243 | ||
1244 | nsemi = clamp_val(num_fingers, 0, 2); | |
1245 | ||
1246 | for (i = 0; i < nsemi; i++) { | |
1247 | pos[i].x = hw[i]->x; | |
1248 | pos[i].y = synaptics_invert_y(hw[i]->y); | |
1249 | } | |
1250 | ||
1251 | input_mt_assign_slots(dev, slot, pos, nsemi); | |
1252 | ||
1253 | for (i = 0; i < nsemi; i++) { | |
1254 | input_mt_slot(dev, slot[i]); | |
1255 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); | |
1256 | input_report_abs(dev, ABS_MT_POSITION_X, pos[i].x); | |
1257 | input_report_abs(dev, ABS_MT_POSITION_Y, pos[i].y); | |
1258 | input_report_abs(dev, ABS_MT_PRESSURE, hw[i]->z); | |
1259 | } | |
1260 | ||
1261 | input_mt_drop_unused(dev); | |
1262 | input_mt_report_pointer_emulation(dev, false); | |
1263 | input_mt_report_finger_count(dev, num_fingers); | |
1264 | ||
1265 | synaptics_report_buttons(psmouse, sgm); | |
1266 | ||
1267 | input_sync(dev); | |
1268 | } | |
1269 | ||
1da177e4 LT |
1270 | /* |
1271 | * called for each full received packet from the touchpad | |
1272 | */ | |
1273 | static void synaptics_process_packet(struct psmouse *psmouse) | |
1274 | { | |
2e5b636b | 1275 | struct input_dev *dev = psmouse->dev; |
1da177e4 LT |
1276 | struct synaptics_data *priv = psmouse->private; |
1277 | struct synaptics_hw_state hw; | |
1278 | int num_fingers; | |
1279 | int finger_width; | |
1da177e4 | 1280 | |
fec6e525 HR |
1281 | if (synaptics_parse_hw_state(psmouse->packet, priv, &hw)) |
1282 | return; | |
1da177e4 | 1283 | |
3cdfee9e DK |
1284 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { |
1285 | synaptics_image_sensor_process(psmouse, &hw); | |
1286 | return; | |
1287 | } | |
1288 | ||
1da177e4 LT |
1289 | if (hw.scroll) { |
1290 | priv->scroll += hw.scroll; | |
1291 | ||
1292 | while (priv->scroll >= 4) { | |
1293 | input_report_key(dev, BTN_BACK, !hw.down); | |
1294 | input_sync(dev); | |
1295 | input_report_key(dev, BTN_BACK, hw.down); | |
1296 | input_sync(dev); | |
1297 | priv->scroll -= 4; | |
1298 | } | |
1299 | while (priv->scroll <= -4) { | |
1300 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
1301 | input_sync(dev); | |
1302 | input_report_key(dev, BTN_FORWARD, hw.up); | |
1303 | input_sync(dev); | |
1304 | priv->scroll += 4; | |
1305 | } | |
1306 | return; | |
1307 | } | |
1308 | ||
4f56ce92 | 1309 | if (hw.z > 0 && hw.x > 1) { |
1da177e4 LT |
1310 | num_fingers = 1; |
1311 | finger_width = 5; | |
1312 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
1313 | switch (hw.w) { | |
1314 | case 0 ... 1: | |
1315 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
1316 | num_fingers = hw.w + 2; | |
1317 | break; | |
1318 | case 2: | |
1319 | if (SYN_MODEL_PEN(priv->model_id)) | |
1320 | ; /* Nothing, treat a pen as a single finger */ | |
1321 | break; | |
1322 | case 4 ... 15: | |
1323 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
1324 | finger_width = hw.w; | |
1325 | break; | |
1326 | } | |
1327 | } | |
1328 | } else { | |
1329 | num_fingers = 0; | |
1330 | finger_width = 0; | |
1331 | } | |
1332 | ||
e08d9afa HR |
1333 | if (cr48_profile_sensor) { |
1334 | synaptics_profile_sensor_process(psmouse, &hw, num_fingers); | |
1335 | return; | |
1336 | } | |
1337 | ||
fec6e525 | 1338 | if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) |
7afdb842 DK |
1339 | synaptics_report_semi_mt_data(dev, &hw, &priv->agm, |
1340 | num_fingers); | |
fec6e525 | 1341 | |
1da177e4 LT |
1342 | /* Post events |
1343 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
1344 | * absolute -> relative conversion | |
1345 | */ | |
1346 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
1347 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
1348 | ||
4f56ce92 | 1349 | if (num_fingers > 0) { |
1da177e4 | 1350 | input_report_abs(dev, ABS_X, hw.x); |
6de58dd6 | 1351 | input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y)); |
1da177e4 LT |
1352 | } |
1353 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
1354 | ||
2a8e7710 CB |
1355 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
1356 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); | |
1357 | ||
1da177e4 | 1358 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); |
e42b6646 PH |
1359 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
1360 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); | |
1361 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); | |
1362 | } | |
1363 | ||
3cdfee9e | 1364 | synaptics_report_buttons(psmouse, &hw); |
1da177e4 LT |
1365 | |
1366 | input_sync(dev); | |
1367 | } | |
1368 | ||
b5d21704 DT |
1369 | static int synaptics_validate_byte(struct psmouse *psmouse, |
1370 | int idx, unsigned char pkt_type) | |
1da177e4 | 1371 | { |
e38de678 HD |
1372 | static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; |
1373 | static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; | |
1374 | static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; | |
1375 | static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; | |
1376 | static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; | |
b5d21704 | 1377 | const char *packet = psmouse->packet; |
1da177e4 LT |
1378 | |
1379 | if (idx < 0 || idx > 4) | |
1380 | return 0; | |
1381 | ||
1382 | switch (pkt_type) { | |
1da177e4 | 1383 | |
a62f0d27 DT |
1384 | case SYN_NEWABS: |
1385 | case SYN_NEWABS_RELAXED: | |
1386 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1387 | |
a62f0d27 DT |
1388 | case SYN_NEWABS_STRICT: |
1389 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1390 | |
a62f0d27 DT |
1391 | case SYN_OLDABS: |
1392 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
1393 | ||
1394 | default: | |
b5d21704 | 1395 | psmouse_err(psmouse, "unknown packet type %d\n", pkt_type); |
a62f0d27 | 1396 | return 0; |
1da177e4 LT |
1397 | } |
1398 | } | |
1399 | ||
1400 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) | |
1401 | { | |
1402 | int i; | |
1403 | ||
1404 | for (i = 0; i < 5; i++) | |
b5d21704 DT |
1405 | if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) { |
1406 | psmouse_info(psmouse, "using relaxed packet validation\n"); | |
1da177e4 LT |
1407 | return SYN_NEWABS_RELAXED; |
1408 | } | |
1409 | ||
1410 | return SYN_NEWABS_STRICT; | |
1411 | } | |
1412 | ||
7d12e780 | 1413 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) |
1da177e4 | 1414 | { |
1da177e4 LT |
1415 | struct synaptics_data *priv = psmouse->private; |
1416 | ||
1da177e4 LT |
1417 | if (psmouse->pktcnt >= 6) { /* Full packet received */ |
1418 | if (unlikely(priv->pkt_type == SYN_NEWABS)) | |
1419 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); | |
1420 | ||
a8b3c0f5 DT |
1421 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && |
1422 | synaptics_is_pt_packet(psmouse->packet)) { | |
1423 | if (priv->pt_port) | |
1424 | synaptics_pass_pt_packet(priv->pt_port, psmouse->packet); | |
1da177e4 LT |
1425 | } else |
1426 | synaptics_process_packet(psmouse); | |
1427 | ||
1428 | return PSMOUSE_FULL_PACKET; | |
1429 | } | |
1430 | ||
b5d21704 | 1431 | return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ? |
1da177e4 LT |
1432 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; |
1433 | } | |
1434 | ||
1435 | /***************************************************************************** | |
1436 | * Driver initialization/cleanup functions | |
1437 | ****************************************************************************/ | |
85615476 DK |
1438 | static void set_abs_position_params(struct input_dev *dev, |
1439 | struct synaptics_data *priv, int x_code, | |
1440 | int y_code) | |
1da177e4 | 1441 | { |
85615476 DK |
1442 | int x_min = priv->x_min ?: XMIN_NOMINAL; |
1443 | int x_max = priv->x_max ?: XMAX_NOMINAL; | |
1444 | int y_min = priv->y_min ?: YMIN_NOMINAL; | |
1445 | int y_max = priv->y_max ?: YMAX_NOMINAL; | |
a9f0b79e DK |
1446 | int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ? |
1447 | SYN_REDUCED_FILTER_FUZZ : 0; | |
1da177e4 | 1448 | |
85615476 DK |
1449 | input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0); |
1450 | input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0); | |
1451 | input_abs_set_res(dev, x_code, priv->x_res); | |
1452 | input_abs_set_res(dev, y_code, priv->y_res); | |
1453 | } | |
1454 | ||
43e19888 HG |
1455 | static void set_input_params(struct psmouse *psmouse, |
1456 | struct synaptics_data *priv) | |
85615476 | 1457 | { |
43e19888 | 1458 | struct input_dev *dev = psmouse->dev; |
85615476 DK |
1459 | int i; |
1460 | ||
7968a5dd | 1461 | /* Things that apply to both modes */ |
c14890a8 | 1462 | __set_bit(INPUT_PROP_POINTER, dev->propbit); |
7968a5dd DD |
1463 | __set_bit(EV_KEY, dev->evbit); |
1464 | __set_bit(BTN_LEFT, dev->keybit); | |
1465 | __set_bit(BTN_RIGHT, dev->keybit); | |
c14890a8 | 1466 | |
7968a5dd DD |
1467 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
1468 | __set_bit(BTN_MIDDLE, dev->keybit); | |
1469 | ||
1470 | if (!priv->absolute_mode) { | |
1471 | /* Relative mode */ | |
1472 | __set_bit(EV_REL, dev->evbit); | |
1473 | __set_bit(REL_X, dev->relbit); | |
1474 | __set_bit(REL_Y, dev->relbit); | |
1475 | return; | |
1476 | } | |
1477 | ||
1478 | /* Absolute mode */ | |
b7802c5c | 1479 | __set_bit(EV_ABS, dev->evbit); |
85615476 | 1480 | set_abs_position_params(dev, priv, ABS_X, ABS_Y); |
1da177e4 | 1481 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); |
2a8e7710 | 1482 | |
e08d9afa HR |
1483 | if (cr48_profile_sensor) |
1484 | input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
1485 | ||
3cdfee9e | 1486 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { |
3cdfee9e DK |
1487 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, |
1488 | ABS_MT_POSITION_Y); | |
1489 | /* Image sensors can report per-contact pressure */ | |
1490 | input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
0b85bf78 | 1491 | input_mt_init_slots(dev, 2, INPUT_MT_POINTER); |
6b4b49fe DK |
1492 | |
1493 | /* Image sensors can signal 4 and 5 finger clicks */ | |
1494 | __set_bit(BTN_TOOL_QUADTAP, dev->keybit); | |
1495 | __set_bit(BTN_TOOL_QUINTTAP, dev->keybit); | |
3cdfee9e | 1496 | } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) { |
85615476 DK |
1497 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, |
1498 | ABS_MT_POSITION_Y); | |
e08d9afa HR |
1499 | /* |
1500 | * Profile sensor in CR-48 tracks contacts reasonably well, | |
1501 | * other non-image sensors with AGM use semi-mt. | |
1502 | */ | |
ae84197f | 1503 | input_mt_init_slots(dev, 2, |
e08d9afa HR |
1504 | INPUT_MT_POINTER | |
1505 | (cr48_profile_sensor ? | |
1506 | INPUT_MT_TRACK : INPUT_MT_SEMI_MT)); | |
fec6e525 HR |
1507 | } |
1508 | ||
2a8e7710 | 1509 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
58fb0218 | 1510 | input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0); |
1da177e4 | 1511 | |
b7802c5c DT |
1512 | __set_bit(BTN_TOUCH, dev->keybit); |
1513 | __set_bit(BTN_TOOL_FINGER, dev->keybit); | |
1da177e4 | 1514 | |
e42b6646 | 1515 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
b7802c5c DT |
1516 | __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); |
1517 | __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); | |
e42b6646 PH |
1518 | } |
1519 | ||
1da177e4 LT |
1520 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || |
1521 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
b7802c5c DT |
1522 | __set_bit(BTN_FORWARD, dev->keybit); |
1523 | __set_bit(BTN_BACK, dev->keybit); | |
1da177e4 LT |
1524 | } |
1525 | ||
1526 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
b7802c5c | 1527 | __set_bit(BTN_0 + i, dev->keybit); |
1da177e4 | 1528 | |
b7802c5c DT |
1529 | __clear_bit(EV_REL, dev->evbit); |
1530 | __clear_bit(REL_X, dev->relbit); | |
1531 | __clear_bit(REL_Y, dev->relbit); | |
ec20a022 | 1532 | |
5f57d67d | 1533 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { |
c14890a8 | 1534 | __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); |
2c75ada6 | 1535 | if (psmouse_matches_pnp_id(psmouse, topbuttonpad_pnp_ids)) |
e2f61102 | 1536 | __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit); |
5f57d67d TI |
1537 | /* Clickpads report only left button */ |
1538 | __clear_bit(BTN_RIGHT, dev->keybit); | |
1539 | __clear_bit(BTN_MIDDLE, dev->keybit); | |
1540 | } | |
1da177e4 LT |
1541 | } |
1542 | ||
7968a5dd DD |
1543 | static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse, |
1544 | void *data, char *buf) | |
1545 | { | |
1546 | struct synaptics_data *priv = psmouse->private; | |
1547 | ||
1548 | return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0'); | |
1549 | } | |
1550 | ||
1551 | static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse, | |
1552 | void *data, const char *buf, | |
1553 | size_t len) | |
1554 | { | |
1555 | struct synaptics_data *priv = psmouse->private; | |
1556 | unsigned int value; | |
1557 | int err; | |
1558 | ||
1559 | err = kstrtouint(buf, 10, &value); | |
1560 | if (err) | |
1561 | return err; | |
1562 | ||
1563 | if (value > 1) | |
1564 | return -EINVAL; | |
1565 | ||
1566 | if (value == priv->disable_gesture) | |
1567 | return len; | |
1568 | ||
1569 | priv->disable_gesture = value; | |
1570 | if (value) | |
1571 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
1572 | else | |
1573 | priv->mode &= ~SYN_BIT_DISABLE_GESTURE; | |
1574 | ||
1575 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
1576 | return -EIO; | |
1577 | ||
1578 | return len; | |
1579 | } | |
1580 | ||
1581 | PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL, | |
1582 | synaptics_show_disable_gesture, | |
1583 | synaptics_set_disable_gesture); | |
1584 | ||
1da177e4 LT |
1585 | static void synaptics_disconnect(struct psmouse *psmouse) |
1586 | { | |
7968a5dd DD |
1587 | struct synaptics_data *priv = psmouse->private; |
1588 | ||
1589 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1590 | device_remove_file(&psmouse->ps2dev.serio->dev, | |
1591 | &psmouse_attr_disable_gesture.dattr); | |
1592 | ||
1da177e4 | 1593 | synaptics_reset(psmouse); |
7968a5dd | 1594 | kfree(priv); |
1da177e4 LT |
1595 | psmouse->private = NULL; |
1596 | } | |
1597 | ||
1598 | static int synaptics_reconnect(struct psmouse *psmouse) | |
1599 | { | |
1600 | struct synaptics_data *priv = psmouse->private; | |
1601 | struct synaptics_data old_priv = *priv; | |
eeb06558 | 1602 | unsigned char param[2]; |
c63fe0a4 APF |
1603 | int retry = 0; |
1604 | int error; | |
1da177e4 | 1605 | |
c63fe0a4 APF |
1606 | do { |
1607 | psmouse_reset(psmouse); | |
8521478f DT |
1608 | if (retry) { |
1609 | /* | |
1610 | * On some boxes, right after resuming, the touchpad | |
1611 | * needs some time to finish initializing (I assume | |
1612 | * it needs time to calibrate) and start responding | |
1613 | * to Synaptics-specific queries, so let's wait a | |
1614 | * bit. | |
1615 | */ | |
1616 | ssleep(1); | |
1617 | } | |
eeb06558 | 1618 | ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID); |
c63fe0a4 APF |
1619 | error = synaptics_detect(psmouse, 0); |
1620 | } while (error && ++retry < 3); | |
4d368456 | 1621 | |
c63fe0a4 | 1622 | if (error) |
1da177e4 LT |
1623 | return -1; |
1624 | ||
c63fe0a4 | 1625 | if (retry > 1) |
b5d21704 | 1626 | psmouse_dbg(psmouse, "reconnected after %d tries\n", retry); |
c63fe0a4 | 1627 | |
1da177e4 | 1628 | if (synaptics_query_hardware(psmouse)) { |
b5d21704 | 1629 | psmouse_err(psmouse, "Unable to query device.\n"); |
1da177e4 LT |
1630 | return -1; |
1631 | } | |
1632 | ||
7968a5dd | 1633 | if (synaptics_set_mode(psmouse)) { |
b5d21704 | 1634 | psmouse_err(psmouse, "Unable to initialize device.\n"); |
1da177e4 LT |
1635 | return -1; |
1636 | } | |
1637 | ||
baddf589 APF |
1638 | if (old_priv.identity != priv->identity || |
1639 | old_priv.model_id != priv->model_id || | |
1640 | old_priv.capabilities != priv->capabilities || | |
1641 | old_priv.ext_cap != priv->ext_cap) { | |
b5d21704 DT |
1642 | psmouse_err(psmouse, |
1643 | "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n", | |
1644 | old_priv.identity, priv->identity, | |
1645 | old_priv.model_id, priv->model_id, | |
1646 | old_priv.capabilities, priv->capabilities, | |
1647 | old_priv.ext_cap, priv->ext_cap); | |
baddf589 APF |
1648 | return -1; |
1649 | } | |
1650 | ||
1da177e4 LT |
1651 | return 0; |
1652 | } | |
1653 | ||
7705d548 DT |
1654 | static bool impaired_toshiba_kbc; |
1655 | ||
c963156c | 1656 | static const struct dmi_system_id toshiba_dmi_table[] __initconst = { |
7705d548 | 1657 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) |
1da177e4 | 1658 | { |
9961e259 | 1659 | /* Toshiba Satellite */ |
1da177e4 LT |
1660 | .matches = { |
1661 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c | 1662 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
1da177e4 LT |
1663 | }, |
1664 | }, | |
9ba5eaaf | 1665 | { |
9961e259 | 1666 | /* Toshiba Dynabook */ |
9ba5eaaf SH |
1667 | .matches = { |
1668 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c RT |
1669 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), |
1670 | }, | |
1671 | }, | |
1672 | { | |
9961e259 | 1673 | /* Toshiba Portege M300 */ |
53a2670c RT |
1674 | .matches = { |
1675 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1676 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), | |
9ba5eaaf | 1677 | }, |
5f5eeff4 DT |
1678 | |
1679 | }, | |
1680 | { | |
9961e259 | 1681 | /* Toshiba Portege M300 */ |
5f5eeff4 DT |
1682 | .matches = { |
1683 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1684 | DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), | |
1685 | DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), | |
1686 | }, | |
1687 | ||
9ba5eaaf | 1688 | }, |
1da177e4 | 1689 | #endif |
70874867 | 1690 | { } |
7705d548 DT |
1691 | }; |
1692 | ||
ef8313bb AS |
1693 | static bool broken_olpc_ec; |
1694 | ||
c963156c | 1695 | static const struct dmi_system_id olpc_dmi_table[] __initconst = { |
ef8313bb AS |
1696 | #if defined(CONFIG_DMI) && defined(CONFIG_OLPC) |
1697 | { | |
1698 | /* OLPC XO-1 or XO-1.5 */ | |
1699 | .matches = { | |
1700 | DMI_MATCH(DMI_SYS_VENDOR, "OLPC"), | |
1701 | DMI_MATCH(DMI_PRODUCT_NAME, "XO"), | |
1702 | }, | |
1703 | }, | |
ef8313bb | 1704 | #endif |
70874867 | 1705 | { } |
ef8313bb AS |
1706 | }; |
1707 | ||
e08d9afa HR |
1708 | static const struct dmi_system_id __initconst cr48_dmi_table[] = { |
1709 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) | |
1710 | { | |
1711 | /* Cr-48 Chromebook (Codename Mario) */ | |
1712 | .matches = { | |
1713 | DMI_MATCH(DMI_SYS_VENDOR, "IEC"), | |
1714 | DMI_MATCH(DMI_PRODUCT_NAME, "Mario"), | |
1715 | }, | |
1716 | }, | |
1717 | #endif | |
1718 | { } | |
1719 | }; | |
1720 | ||
aa972409 DT |
1721 | static const struct dmi_system_id forcepad_dmi_table[] __initconst = { |
1722 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) | |
1723 | { | |
1724 | .matches = { | |
1725 | DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"), | |
1726 | DMI_MATCH(DMI_PRODUCT_NAME, "HP EliteBook Folio 1040 G1"), | |
1727 | }, | |
1728 | }, | |
1729 | #endif | |
1730 | { } | |
1731 | }; | |
1732 | ||
7705d548 DT |
1733 | void __init synaptics_module_init(void) |
1734 | { | |
1735 | impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); | |
ef8313bb | 1736 | broken_olpc_ec = dmi_check_system(olpc_dmi_table); |
e08d9afa | 1737 | cr48_profile_sensor = dmi_check_system(cr48_dmi_table); |
aa972409 DT |
1738 | |
1739 | /* | |
1740 | * Unfortunately ForcePad capability is not exported over PS/2, | |
1741 | * so we have to resort to checking DMI. | |
1742 | */ | |
1743 | is_forcepad = dmi_check_system(forcepad_dmi_table); | |
7705d548 | 1744 | } |
1da177e4 | 1745 | |
7968a5dd | 1746 | static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) |
1da177e4 LT |
1747 | { |
1748 | struct synaptics_data *priv; | |
7968a5dd | 1749 | int err = -1; |
1da177e4 | 1750 | |
ef8313bb | 1751 | /* |
83551c01 DD |
1752 | * The OLPC XO has issues with Synaptics' absolute mode; the constant |
1753 | * packet spew overloads the EC such that key presses on the keyboard | |
1754 | * are missed. Given that, don't even attempt to use Absolute mode. | |
1755 | * Relative mode seems to work just fine. | |
ef8313bb | 1756 | */ |
83551c01 | 1757 | if (absolute_mode && broken_olpc_ec) { |
b5d21704 DT |
1758 | psmouse_info(psmouse, |
1759 | "OLPC XO detected, not enabling Synaptics protocol.\n"); | |
ef8313bb AS |
1760 | return -ENODEV; |
1761 | } | |
1762 | ||
b39787a9 | 1763 | psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); |
1da177e4 | 1764 | if (!priv) |
6792cbbb | 1765 | return -ENOMEM; |
1da177e4 | 1766 | |
4d368456 AW |
1767 | psmouse_reset(psmouse); |
1768 | ||
1da177e4 | 1769 | if (synaptics_query_hardware(psmouse)) { |
b5d21704 | 1770 | psmouse_err(psmouse, "Unable to query device.\n"); |
1da177e4 LT |
1771 | goto init_fail; |
1772 | } | |
1773 | ||
7968a5dd DD |
1774 | priv->absolute_mode = absolute_mode; |
1775 | if (SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1776 | priv->disable_gesture = true; | |
1da177e4 | 1777 | |
7968a5dd DD |
1778 | if (synaptics_set_mode(psmouse)) { |
1779 | psmouse_err(psmouse, "Unable to initialize device.\n"); | |
fec6e525 HR |
1780 | goto init_fail; |
1781 | } | |
1782 | ||
1da177e4 LT |
1783 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; |
1784 | ||
b5d21704 | 1785 | psmouse_info(psmouse, |
c6bd9d46 | 1786 | "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n", |
b5d21704 DT |
1787 | SYN_ID_MODEL(priv->identity), |
1788 | SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), | |
1789 | priv->model_id, | |
c6bd9d46 DK |
1790 | priv->capabilities, priv->ext_cap, priv->ext_cap_0c, |
1791 | priv->board_id, priv->firmware_id); | |
409b7506 | 1792 | |
43e19888 | 1793 | set_input_params(psmouse, priv); |
1da177e4 | 1794 | |
887cc127 DT |
1795 | /* |
1796 | * Encode touchpad model so that it can be used to set | |
1797 | * input device->id.version and be visible to userspace. | |
1798 | * Because version is __u16 we have to drop something. | |
1799 | * Hardware info bits seem to be good candidates as they | |
1800 | * are documented to be for Synaptics corp. internal use. | |
1801 | */ | |
1802 | psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | | |
1803 | (priv->model_id & 0x000000ff); | |
1804 | ||
7968a5dd DD |
1805 | if (absolute_mode) { |
1806 | psmouse->protocol_handler = synaptics_process_byte; | |
1807 | psmouse->pktsize = 6; | |
1808 | } else { | |
1809 | /* Relative mode follows standard PS/2 mouse protocol */ | |
1810 | psmouse->protocol_handler = psmouse_process_byte; | |
1811 | psmouse->pktsize = 3; | |
1812 | } | |
1813 | ||
1da177e4 LT |
1814 | psmouse->set_rate = synaptics_set_rate; |
1815 | psmouse->disconnect = synaptics_disconnect; | |
1816 | psmouse->reconnect = synaptics_reconnect; | |
a1cec061 | 1817 | psmouse->cleanup = synaptics_reset; |
f0d5c6f4 DT |
1818 | /* Synaptics can usually stay in sync without extra help */ |
1819 | psmouse->resync_time = 0; | |
1da177e4 LT |
1820 | |
1821 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
1822 | synaptics_pt_create(psmouse); | |
1823 | ||
1da177e4 LT |
1824 | /* |
1825 | * Toshiba's KBC seems to have trouble handling data from | |
7ee99161 AS |
1826 | * Synaptics at full rate. Switch to a lower rate (roughly |
1827 | * the same rate as a standard PS/2 mouse). | |
1da177e4 | 1828 | */ |
7705d548 | 1829 | if (psmouse->rate >= 80 && impaired_toshiba_kbc) { |
b5d21704 DT |
1830 | psmouse_info(psmouse, |
1831 | "Toshiba %s detected, limiting rate to 40pps.\n", | |
1832 | dmi_get_system_info(DMI_PRODUCT_NAME)); | |
1da177e4 LT |
1833 | psmouse->rate = 40; |
1834 | } | |
1da177e4 | 1835 | |
7968a5dd DD |
1836 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) { |
1837 | err = device_create_file(&psmouse->ps2dev.serio->dev, | |
1838 | &psmouse_attr_disable_gesture.dattr); | |
1839 | if (err) { | |
1840 | psmouse_err(psmouse, | |
1841 | "Failed to create disable_gesture attribute (%d)", | |
1842 | err); | |
1843 | goto init_fail; | |
1844 | } | |
1845 | } | |
1846 | ||
1da177e4 LT |
1847 | return 0; |
1848 | ||
1849 | init_fail: | |
1850 | kfree(priv); | |
7968a5dd DD |
1851 | return err; |
1852 | } | |
1853 | ||
1854 | int synaptics_init(struct psmouse *psmouse) | |
1855 | { | |
1856 | return __synaptics_init(psmouse, true); | |
1857 | } | |
1858 | ||
1859 | int synaptics_init_relative(struct psmouse *psmouse) | |
1860 | { | |
1861 | return __synaptics_init(psmouse, false); | |
1da177e4 LT |
1862 | } |
1863 | ||
e4e6efd2 DD |
1864 | bool synaptics_supported(void) |
1865 | { | |
1866 | return true; | |
1867 | } | |
1868 | ||
55e3d922 AS |
1869 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
1870 | ||
7705d548 DT |
1871 | void __init synaptics_module_init(void) |
1872 | { | |
1873 | } | |
1874 | ||
55e3d922 AS |
1875 | int synaptics_init(struct psmouse *psmouse) |
1876 | { | |
1877 | return -ENOSYS; | |
1878 | } | |
1879 | ||
e4e6efd2 DD |
1880 | bool synaptics_supported(void) |
1881 | { | |
1882 | return false; | |
1883 | } | |
1884 | ||
55e3d922 | 1885 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ |