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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Synaptics TouchPad PS/2 mouse driver | |
3 | * | |
4 | * 2003 Dmitry Torokhov <dtor@mail.ru> | |
5 | * Added support for pass-through port. Special thanks to Peter Berg Larsen | |
6 | * for explaining various Synaptics quirks. | |
7 | * | |
8 | * 2003 Peter Osterlund <petero2@telia.com> | |
9 | * Ported to 2.5 input device infrastructure. | |
10 | * | |
11 | * Copyright (C) 2001 Stefan Gmeiner <riddlebox@freesurf.ch> | |
12 | * start merging tpconfig and gpm code to a xfree-input module | |
13 | * adding some changes and extensions (ex. 3rd and 4th button) | |
14 | * | |
15 | * Copyright (c) 1997 C. Scott Ananian <cananian@alumni.priceton.edu> | |
16 | * Copyright (c) 1998-2000 Bruce Kalk <kall@compass.com> | |
17 | * code for the special synaptics commands (from the tpconfig-source) | |
18 | * | |
19 | * This program is free software; you can redistribute it and/or modify it | |
20 | * under the terms of the GNU General Public License version 2 as published by | |
21 | * the Free Software Foundation. | |
22 | * | |
23 | * Trademarks are the property of their respective owners. | |
24 | */ | |
25 | ||
26 | #include <linux/module.h> | |
8521478f | 27 | #include <linux/delay.h> |
7705d548 | 28 | #include <linux/dmi.h> |
fec6e525 | 29 | #include <linux/input/mt.h> |
1da177e4 LT |
30 | #include <linux/serio.h> |
31 | #include <linux/libps2.h> | |
5a0e3ad6 | 32 | #include <linux/slab.h> |
1da177e4 LT |
33 | #include "psmouse.h" |
34 | #include "synaptics.h" | |
35 | ||
36 | /* | |
37 | * The x/y limits are taken from the Synaptics TouchPad interfacing Guide, | |
38 | * section 2.3.2, which says that they should be valid regardless of the | |
39 | * actual size of the sensor. | |
83ba9ea8 DT |
40 | * Note that newer firmware allows querying device for maximum useable |
41 | * coordinates. | |
1da177e4 | 42 | */ |
c0394506 SF |
43 | #define XMIN 0 |
44 | #define XMAX 6143 | |
45 | #define YMIN 0 | |
46 | #define YMAX 6143 | |
1da177e4 LT |
47 | #define XMIN_NOMINAL 1472 |
48 | #define XMAX_NOMINAL 5472 | |
49 | #define YMIN_NOMINAL 1408 | |
50 | #define YMAX_NOMINAL 4448 | |
51 | ||
c0394506 SF |
52 | /* Size in bits of absolute position values reported by the hardware */ |
53 | #define ABS_POS_BITS 13 | |
54 | ||
55 | /* | |
824efd37 SF |
56 | * These values should represent the absolute maximum value that will |
57 | * be reported for a positive position value. Some Synaptics firmware | |
58 | * uses this value to indicate a finger near the edge of the touchpad | |
59 | * whose precise position cannot be determined. | |
60 | * | |
61 | * At least one touchpad is known to report positions in excess of this | |
62 | * value which are actually negative values truncated to the 13-bit | |
63 | * reporting range. These values have never been observed to be lower | |
64 | * than 8184 (i.e. -8), so we treat all values greater than 8176 as | |
65 | * negative and any other value as positive. | |
c0394506 | 66 | */ |
824efd37 SF |
67 | #define X_MAX_POSITIVE 8176 |
68 | #define Y_MAX_POSITIVE 8176 | |
55e3d922 | 69 | |
1da177e4 | 70 | /***************************************************************************** |
55e3d922 | 71 | * Stuff we need even when we do not want native Synaptics support |
1da177e4 LT |
72 | ****************************************************************************/ |
73 | ||
74 | /* | |
55e3d922 | 75 | * Set the synaptics touchpad mode byte by special commands |
1da177e4 | 76 | */ |
55e3d922 | 77 | static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode) |
1da177e4 | 78 | { |
55e3d922 AS |
79 | unsigned char param[1]; |
80 | ||
81 | if (psmouse_sliced_command(psmouse, mode)) | |
1da177e4 | 82 | return -1; |
55e3d922 AS |
83 | param[0] = SYN_PS_SET_MODE2; |
84 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE)) | |
1da177e4 LT |
85 | return -1; |
86 | return 0; | |
87 | } | |
88 | ||
b7802c5c | 89 | int synaptics_detect(struct psmouse *psmouse, bool set_properties) |
55e3d922 AS |
90 | { |
91 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
92 | unsigned char param[4]; | |
93 | ||
94 | param[0] = 0; | |
95 | ||
96 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
97 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
98 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
99 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
100 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); | |
101 | ||
102 | if (param[1] != 0x47) | |
103 | return -ENODEV; | |
104 | ||
105 | if (set_properties) { | |
106 | psmouse->vendor = "Synaptics"; | |
107 | psmouse->name = "TouchPad"; | |
108 | } | |
109 | ||
110 | return 0; | |
111 | } | |
112 | ||
113 | void synaptics_reset(struct psmouse *psmouse) | |
114 | { | |
115 | /* reset touchpad back to relative mode, gestures enabled */ | |
116 | synaptics_mode_cmd(psmouse, 0); | |
117 | } | |
118 | ||
119 | #ifdef CONFIG_MOUSE_PS2_SYNAPTICS | |
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 | { | |
e76aed9d HG |
138 | (const char * const []){"LEN0034", "LEN0036", "LEN2002", |
139 | "LEN2004", NULL}, | |
0f68f39c HG |
140 | 1024, 5112, 2024, 4832 |
141 | }, | |
142 | { | |
143 | (const char * const []){"LEN2001", NULL}, | |
144 | 1024, 5022, 2508, 4832 | |
145 | }, | |
146 | { } | |
147 | }; | |
148 | ||
43e19888 HG |
149 | /* This list has been kindly provided by Synaptics. */ |
150 | static const char * const topbuttonpad_pnp_ids[] = { | |
151 | "LEN0017", | |
152 | "LEN0018", | |
153 | "LEN0019", | |
154 | "LEN0023", | |
155 | "LEN002A", | |
156 | "LEN002B", | |
157 | "LEN002C", | |
158 | "LEN002D", | |
159 | "LEN002E", | |
160 | "LEN0033", /* Helix */ | |
0f68f39c | 161 | "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */ |
43e19888 HG |
162 | "LEN0035", /* X240 */ |
163 | "LEN0036", /* T440 */ | |
164 | "LEN0037", | |
165 | "LEN0038", | |
166 | "LEN0041", | |
167 | "LEN0042", /* Yoga */ | |
168 | "LEN0045", | |
169 | "LEN0046", | |
170 | "LEN0047", | |
171 | "LEN0048", | |
172 | "LEN0049", | |
173 | "LEN2000", | |
0f68f39c | 174 | "LEN2001", /* Edge E431 */ |
e76aed9d | 175 | "LEN2002", /* Edge E531 */ |
43e19888 HG |
176 | "LEN2003", |
177 | "LEN2004", /* L440 */ | |
178 | "LEN2005", | |
179 | "LEN2006", | |
180 | "LEN2007", | |
181 | "LEN2008", | |
182 | "LEN2009", | |
183 | "LEN200A", | |
184 | "LEN200B", | |
185 | NULL | |
186 | }; | |
55e3d922 | 187 | |
e2f61102 HG |
188 | static bool matches_pnp_id(struct psmouse *psmouse, const char * const ids[]) |
189 | { | |
190 | int i; | |
191 | ||
192 | if (!strncmp(psmouse->ps2dev.serio->firmware_id, "PNP:", 4)) | |
193 | for (i = 0; ids[i]; i++) | |
194 | if (strstr(psmouse->ps2dev.serio->firmware_id, ids[i])) | |
195 | return true; | |
196 | ||
197 | return false; | |
198 | } | |
199 | ||
55e3d922 AS |
200 | /***************************************************************************** |
201 | * Synaptics communications functions | |
202 | ****************************************************************************/ | |
203 | ||
1a49a0a0 JD |
204 | /* |
205 | * Synaptics touchpads report the y coordinate from bottom to top, which is | |
206 | * opposite from what userspace expects. | |
207 | * This function is used to invert y before reporting. | |
208 | */ | |
209 | static int synaptics_invert_y(int y) | |
210 | { | |
211 | return YMAX_NOMINAL + YMIN_NOMINAL - y; | |
212 | } | |
213 | ||
1da177e4 | 214 | /* |
55e3d922 | 215 | * Send a command to the synpatics touchpad by special commands |
1da177e4 | 216 | */ |
55e3d922 | 217 | static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) |
1da177e4 | 218 | { |
55e3d922 | 219 | if (psmouse_sliced_command(psmouse, c)) |
1da177e4 | 220 | return -1; |
55e3d922 | 221 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) |
1da177e4 LT |
222 | return -1; |
223 | return 0; | |
224 | } | |
225 | ||
226 | /* | |
227 | * Read the model-id bytes from the touchpad | |
228 | * see also SYN_MODEL_* macros | |
229 | */ | |
230 | static int synaptics_model_id(struct psmouse *psmouse) | |
231 | { | |
232 | struct synaptics_data *priv = psmouse->private; | |
233 | unsigned char mi[3]; | |
234 | ||
235 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) | |
236 | return -1; | |
237 | priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; | |
238 | return 0; | |
239 | } | |
240 | ||
c6bd9d46 DK |
241 | /* |
242 | * Read the board id from the touchpad | |
243 | * The board id is encoded in the "QUERY MODES" response | |
244 | */ | |
245 | static int synaptics_board_id(struct psmouse *psmouse) | |
246 | { | |
247 | struct synaptics_data *priv = psmouse->private; | |
248 | unsigned char bid[3]; | |
249 | ||
250 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid)) | |
251 | return -1; | |
252 | priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; | |
253 | return 0; | |
254 | } | |
255 | ||
256 | /* | |
257 | * Read the firmware id from the touchpad | |
258 | */ | |
259 | static int synaptics_firmware_id(struct psmouse *psmouse) | |
260 | { | |
261 | struct synaptics_data *priv = psmouse->private; | |
262 | unsigned char fwid[3]; | |
263 | ||
264 | if (synaptics_send_cmd(psmouse, SYN_QUE_FIRMWARE_ID, fwid)) | |
265 | return -1; | |
266 | priv->firmware_id = (fwid[0] << 16) | (fwid[1] << 8) | fwid[2]; | |
267 | return 0; | |
268 | } | |
269 | ||
1da177e4 LT |
270 | /* |
271 | * Read the capability-bits from the touchpad | |
272 | * see also the SYN_CAP_* macros | |
273 | */ | |
274 | static int synaptics_capability(struct psmouse *psmouse) | |
275 | { | |
276 | struct synaptics_data *priv = psmouse->private; | |
277 | unsigned char cap[3]; | |
278 | ||
279 | if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) | |
280 | return -1; | |
281 | priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
5f57d67d TI |
282 | priv->ext_cap = priv->ext_cap_0c = 0; |
283 | ||
3619b8fe DT |
284 | /* |
285 | * Older firmwares had submodel ID fixed to 0x47 | |
286 | */ | |
287 | if (SYN_ID_FULL(priv->identity) < 0x705 && | |
288 | SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) { | |
1da177e4 | 289 | return -1; |
3619b8fe | 290 | } |
1da177e4 LT |
291 | |
292 | /* | |
293 | * Unless capExtended is set the rest of the flags should be ignored | |
294 | */ | |
295 | if (!SYN_CAP_EXTENDED(priv->capabilities)) | |
296 | priv->capabilities = 0; | |
297 | ||
298 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { | |
299 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { | |
b5d21704 DT |
300 | psmouse_warn(psmouse, |
301 | "device claims to have extended capabilities, but I'm not able to read them.\n"); | |
1da177e4 LT |
302 | } else { |
303 | priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
304 | ||
305 | /* | |
306 | * if nExtBtn is greater than 8 it should be considered | |
307 | * invalid and treated as 0 | |
308 | */ | |
309 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) | |
310 | priv->ext_cap &= 0xff0fff; | |
311 | } | |
312 | } | |
5f57d67d TI |
313 | |
314 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) { | |
315 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) { | |
b5d21704 DT |
316 | psmouse_warn(psmouse, |
317 | "device claims to have extended capability 0x0c, but I'm not able to read it.\n"); | |
5f57d67d TI |
318 | } else { |
319 | priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
320 | } | |
321 | } | |
322 | ||
1da177e4 LT |
323 | return 0; |
324 | } | |
325 | ||
326 | /* | |
327 | * Identify Touchpad | |
328 | * See also the SYN_ID_* macros | |
329 | */ | |
330 | static int synaptics_identify(struct psmouse *psmouse) | |
331 | { | |
332 | struct synaptics_data *priv = psmouse->private; | |
333 | unsigned char id[3]; | |
334 | ||
335 | if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) | |
336 | return -1; | |
337 | priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; | |
338 | if (SYN_ID_IS_SYNAPTICS(priv->identity)) | |
339 | return 0; | |
340 | return -1; | |
341 | } | |
342 | ||
ec20a022 | 343 | /* |
83ba9ea8 | 344 | * Read touchpad resolution and maximum reported coordinates |
ec20a022 TS |
345 | * Resolution is left zero if touchpad does not support the query |
346 | */ | |
421e08c4 | 347 | |
ec20a022 TS |
348 | static int synaptics_resolution(struct psmouse *psmouse) |
349 | { | |
350 | struct synaptics_data *priv = psmouse->private; | |
a66413fb | 351 | unsigned char resp[3]; |
0f68f39c | 352 | int i; |
ec20a022 TS |
353 | |
354 | if (SYN_ID_MAJOR(priv->identity) < 4) | |
bbddd199 | 355 | return 0; |
ec20a022 | 356 | |
a66413fb DT |
357 | if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) { |
358 | if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) { | |
359 | priv->x_res = resp[0]; /* x resolution in units/mm */ | |
360 | priv->y_res = resp[2]; /* y resolution in units/mm */ | |
83ba9ea8 DT |
361 | } |
362 | } | |
ec20a022 | 363 | |
d49cb7ae BT |
364 | for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) { |
365 | if (matches_pnp_id(psmouse, min_max_pnpid_table[i].pnp_ids)) { | |
366 | priv->x_min = min_max_pnpid_table[i].x_min; | |
367 | priv->x_max = min_max_pnpid_table[i].x_max; | |
368 | priv->y_min = min_max_pnpid_table[i].y_min; | |
369 | priv->y_max = min_max_pnpid_table[i].y_max; | |
370 | return 0; | |
371 | } | |
372 | } | |
373 | ||
83ba9ea8 DT |
374 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && |
375 | SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { | |
a66413fb | 376 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) { |
b5d21704 DT |
377 | psmouse_warn(psmouse, |
378 | "device claims to have max coordinates query, but I'm not able to read it.\n"); | |
a66413fb DT |
379 | } else { |
380 | priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); | |
381 | priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
382 | } | |
383 | } | |
384 | ||
385 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 && | |
386 | SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) { | |
387 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) { | |
b5d21704 DT |
388 | psmouse_warn(psmouse, |
389 | "device claims to have min coordinates query, but I'm not able to read it.\n"); | |
83ba9ea8 | 390 | } else { |
a66413fb DT |
391 | priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); |
392 | priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
83ba9ea8 | 393 | } |
ec20a022 TS |
394 | } |
395 | ||
396 | return 0; | |
397 | } | |
398 | ||
1da177e4 LT |
399 | static int synaptics_query_hardware(struct psmouse *psmouse) |
400 | { | |
1da177e4 LT |
401 | if (synaptics_identify(psmouse)) |
402 | return -1; | |
403 | if (synaptics_model_id(psmouse)) | |
404 | return -1; | |
c6bd9d46 DK |
405 | if (synaptics_firmware_id(psmouse)) |
406 | return -1; | |
407 | if (synaptics_board_id(psmouse)) | |
408 | return -1; | |
1da177e4 LT |
409 | if (synaptics_capability(psmouse)) |
410 | return -1; | |
ec20a022 TS |
411 | if (synaptics_resolution(psmouse)) |
412 | return -1; | |
1da177e4 LT |
413 | |
414 | return 0; | |
415 | } | |
416 | ||
7968a5dd DD |
417 | static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse) |
418 | { | |
419 | static unsigned char param = 0xc8; | |
420 | struct synaptics_data *priv = psmouse->private; | |
421 | ||
899c612d BH |
422 | if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || |
423 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c))) | |
7968a5dd DD |
424 | return 0; |
425 | ||
426 | if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL)) | |
427 | return -1; | |
428 | ||
429 | if (ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE)) | |
430 | return -1; | |
431 | ||
432 | /* Advanced gesture mode also sends multi finger data */ | |
433 | priv->capabilities |= BIT(1); | |
434 | ||
435 | return 0; | |
436 | } | |
437 | ||
438 | static int synaptics_set_mode(struct psmouse *psmouse) | |
1da177e4 LT |
439 | { |
440 | struct synaptics_data *priv = psmouse->private; | |
441 | ||
7968a5dd DD |
442 | priv->mode = 0; |
443 | if (priv->absolute_mode) | |
444 | priv->mode |= SYN_BIT_ABSOLUTE_MODE; | |
445 | if (priv->disable_gesture) | |
1da177e4 | 446 | priv->mode |= SYN_BIT_DISABLE_GESTURE; |
7968a5dd DD |
447 | if (psmouse->rate >= 80) |
448 | priv->mode |= SYN_BIT_HIGH_RATE; | |
1da177e4 LT |
449 | if (SYN_CAP_EXTENDED(priv->capabilities)) |
450 | priv->mode |= SYN_BIT_W_MODE; | |
451 | ||
452 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
453 | return -1; | |
454 | ||
7968a5dd DD |
455 | if (priv->absolute_mode && |
456 | synaptics_set_advanced_gesture_mode(psmouse)) { | |
457 | psmouse_err(psmouse, "Advanced gesture mode init failed.\n"); | |
458 | return -1; | |
459 | } | |
460 | ||
1da177e4 LT |
461 | return 0; |
462 | } | |
463 | ||
464 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
465 | { | |
466 | struct synaptics_data *priv = psmouse->private; | |
467 | ||
468 | if (rate >= 80) { | |
469 | priv->mode |= SYN_BIT_HIGH_RATE; | |
470 | psmouse->rate = 80; | |
471 | } else { | |
472 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
473 | psmouse->rate = 40; | |
474 | } | |
475 | ||
476 | synaptics_mode_cmd(psmouse, priv->mode); | |
477 | } | |
478 | ||
479 | /***************************************************************************** | |
480 | * Synaptics pass-through PS/2 port support | |
481 | ****************************************************************************/ | |
482 | static int synaptics_pt_write(struct serio *serio, unsigned char c) | |
483 | { | |
484 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
485 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ | |
486 | ||
487 | if (psmouse_sliced_command(parent, c)) | |
488 | return -1; | |
489 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) | |
490 | return -1; | |
491 | return 0; | |
492 | } | |
493 | ||
a8b3c0f5 DT |
494 | static int synaptics_pt_start(struct serio *serio) |
495 | { | |
496 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
497 | struct synaptics_data *priv = parent->private; | |
498 | ||
499 | serio_pause_rx(parent->ps2dev.serio); | |
500 | priv->pt_port = serio; | |
501 | serio_continue_rx(parent->ps2dev.serio); | |
502 | ||
503 | return 0; | |
504 | } | |
505 | ||
506 | static void synaptics_pt_stop(struct serio *serio) | |
507 | { | |
508 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
509 | struct synaptics_data *priv = parent->private; | |
510 | ||
511 | serio_pause_rx(parent->ps2dev.serio); | |
512 | priv->pt_port = NULL; | |
513 | serio_continue_rx(parent->ps2dev.serio); | |
514 | } | |
515 | ||
516 | static int synaptics_is_pt_packet(unsigned char *buf) | |
1da177e4 LT |
517 | { |
518 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
519 | } | |
520 | ||
521 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) | |
522 | { | |
523 | struct psmouse *child = serio_get_drvdata(ptport); | |
524 | ||
525 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
7d12e780 DH |
526 | serio_interrupt(ptport, packet[1], 0); |
527 | serio_interrupt(ptport, packet[4], 0); | |
528 | serio_interrupt(ptport, packet[5], 0); | |
33fdfa97 | 529 | if (child->pktsize == 4) |
7d12e780 | 530 | serio_interrupt(ptport, packet[2], 0); |
1da177e4 | 531 | } else |
7d12e780 | 532 | serio_interrupt(ptport, packet[1], 0); |
1da177e4 LT |
533 | } |
534 | ||
535 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
536 | { | |
1da177e4 | 537 | struct synaptics_data *priv = psmouse->private; |
a8b3c0f5 | 538 | struct psmouse *child = serio_get_drvdata(priv->pt_port); |
1da177e4 LT |
539 | |
540 | /* adjust the touchpad to child's choice of protocol */ | |
541 | if (child) { | |
33fdfa97 | 542 | if (child->pktsize == 4) |
1da177e4 LT |
543 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
544 | else | |
545 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
546 | ||
547 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
b5d21704 DT |
548 | psmouse_warn(psmouse, |
549 | "failed to switch guest protocol\n"); | |
1da177e4 LT |
550 | } |
551 | } | |
552 | ||
553 | static void synaptics_pt_create(struct psmouse *psmouse) | |
554 | { | |
555 | struct serio *serio; | |
556 | ||
b39787a9 | 557 | serio = kzalloc(sizeof(struct serio), GFP_KERNEL); |
1da177e4 | 558 | if (!serio) { |
b5d21704 DT |
559 | psmouse_err(psmouse, |
560 | "not enough memory for pass-through port\n"); | |
1da177e4 LT |
561 | return; |
562 | } | |
563 | ||
1da177e4 LT |
564 | serio->id.type = SERIO_PS_PSTHRU; |
565 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); | |
566 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); | |
567 | serio->write = synaptics_pt_write; | |
a8b3c0f5 DT |
568 | serio->start = synaptics_pt_start; |
569 | serio->stop = synaptics_pt_stop; | |
1da177e4 LT |
570 | serio->parent = psmouse->ps2dev.serio; |
571 | ||
572 | psmouse->pt_activate = synaptics_pt_activate; | |
573 | ||
b5d21704 DT |
574 | psmouse_info(psmouse, "serio: %s port at %s\n", |
575 | serio->name, psmouse->phys); | |
1da177e4 LT |
576 | serio_register_port(serio); |
577 | } | |
578 | ||
579 | /***************************************************************************** | |
580 | * Functions to interpret the absolute mode packets | |
581 | ****************************************************************************/ | |
582 | ||
a6ca40c1 DK |
583 | static void synaptics_mt_state_set(struct synaptics_mt_state *state, int count, |
584 | int sgm, int agm) | |
585 | { | |
586 | state->count = count; | |
587 | state->sgm = sgm; | |
588 | state->agm = agm; | |
589 | } | |
590 | ||
7afdb842 | 591 | static void synaptics_parse_agm(const unsigned char buf[], |
a6ca40c1 DK |
592 | struct synaptics_data *priv, |
593 | struct synaptics_hw_state *hw) | |
7afdb842 DK |
594 | { |
595 | struct synaptics_hw_state *agm = &priv->agm; | |
a6ca40c1 DK |
596 | int agm_packet_type; |
597 | ||
598 | agm_packet_type = (buf[5] & 0x30) >> 4; | |
599 | switch (agm_packet_type) { | |
600 | case 1: | |
601 | /* Gesture packet: (x, y, z) half resolution */ | |
602 | agm->w = hw->w; | |
603 | agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1; | |
604 | agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1; | |
605 | agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1; | |
606 | break; | |
607 | ||
608 | case 2: | |
609 | /* AGM-CONTACT packet: (count, sgm, agm) */ | |
610 | synaptics_mt_state_set(&agm->mt_state, buf[1], buf[2], buf[4]); | |
611 | break; | |
612 | ||
613 | default: | |
614 | break; | |
615 | } | |
4dc772d2 DK |
616 | |
617 | /* Record that at least one AGM has been received since last SGM */ | |
618 | priv->agm_pending = true; | |
7afdb842 DK |
619 | } |
620 | ||
fec6e525 HR |
621 | static int synaptics_parse_hw_state(const unsigned char buf[], |
622 | struct synaptics_data *priv, | |
623 | struct synaptics_hw_state *hw) | |
1da177e4 LT |
624 | { |
625 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
626 | ||
627 | if (SYN_MODEL_NEWABS(priv->model_id)) { | |
1da177e4 LT |
628 | hw->w = (((buf[0] & 0x30) >> 2) | |
629 | ((buf[0] & 0x04) >> 1) | | |
630 | ((buf[3] & 0x04) >> 2)); | |
631 | ||
632 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
633 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
634 | ||
5f57d67d TI |
635 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { |
636 | /* | |
637 | * Clickpad's button is transmitted as middle button, | |
638 | * however, since it is primary button, we will report | |
639 | * it as BTN_LEFT. | |
640 | */ | |
641 | hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
642 | ||
643 | } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
1da177e4 LT |
644 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
645 | if (hw->w == 2) | |
646 | hw->scroll = (signed char)(buf[1]); | |
647 | } | |
648 | ||
649 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
650 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
651 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
652 | } | |
653 | ||
3cdfee9e DK |
654 | if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || |
655 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) && | |
656 | hw->w == 2) { | |
a6ca40c1 | 657 | synaptics_parse_agm(buf, priv, hw); |
28d5fd86 DK |
658 | return 1; |
659 | } | |
660 | ||
661 | hw->x = (((buf[3] & 0x10) << 8) | | |
662 | ((buf[1] & 0x0f) << 8) | | |
663 | buf[4]); | |
664 | hw->y = (((buf[3] & 0x20) << 7) | | |
665 | ((buf[1] & 0xf0) << 4) | | |
666 | buf[5]); | |
667 | hw->z = buf[2]; | |
668 | ||
1da177e4 LT |
669 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && |
670 | ((buf[0] ^ buf[3]) & 0x02)) { | |
671 | switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { | |
672 | default: | |
673 | /* | |
674 | * if nExtBtn is greater than 8 it should be | |
675 | * considered invalid and treated as 0 | |
676 | */ | |
677 | break; | |
678 | case 8: | |
679 | hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; | |
680 | hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; | |
681 | case 6: | |
682 | hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; | |
683 | hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; | |
684 | case 4: | |
685 | hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; | |
686 | hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; | |
687 | case 2: | |
688 | hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; | |
689 | hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; | |
690 | } | |
691 | } | |
692 | } else { | |
693 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
694 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
695 | ||
696 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
697 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
698 | ||
699 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
700 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
701 | } | |
fec6e525 | 702 | |
824efd37 SF |
703 | /* |
704 | * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE | |
705 | * is used by some firmware to indicate a finger at the edge of | |
706 | * the touchpad whose precise position cannot be determined, so | |
707 | * convert these values to the maximum axis value. | |
708 | */ | |
c0394506 SF |
709 | if (hw->x > X_MAX_POSITIVE) |
710 | hw->x -= 1 << ABS_POS_BITS; | |
824efd37 SF |
711 | else if (hw->x == X_MAX_POSITIVE) |
712 | hw->x = XMAX; | |
713 | ||
c0394506 SF |
714 | if (hw->y > Y_MAX_POSITIVE) |
715 | hw->y -= 1 << ABS_POS_BITS; | |
824efd37 SF |
716 | else if (hw->y == Y_MAX_POSITIVE) |
717 | hw->y = YMAX; | |
c0394506 | 718 | |
fec6e525 HR |
719 | return 0; |
720 | } | |
721 | ||
bea9f0ff DK |
722 | static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot, |
723 | bool active, int x, int y) | |
fec6e525 HR |
724 | { |
725 | input_mt_slot(dev, slot); | |
726 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); | |
727 | if (active) { | |
728 | input_report_abs(dev, ABS_MT_POSITION_X, x); | |
6de58dd6 | 729 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y)); |
fec6e525 HR |
730 | } |
731 | } | |
732 | ||
733 | static void synaptics_report_semi_mt_data(struct input_dev *dev, | |
734 | const struct synaptics_hw_state *a, | |
735 | const struct synaptics_hw_state *b, | |
736 | int num_fingers) | |
737 | { | |
738 | if (num_fingers >= 2) { | |
bea9f0ff DK |
739 | synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x), |
740 | min(a->y, b->y)); | |
741 | synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x), | |
742 | max(a->y, b->y)); | |
fec6e525 | 743 | } else if (num_fingers == 1) { |
bea9f0ff DK |
744 | synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y); |
745 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 746 | } else { |
bea9f0ff DK |
747 | synaptics_report_semi_mt_slot(dev, 0, false, 0, 0); |
748 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 749 | } |
1da177e4 LT |
750 | } |
751 | ||
3cdfee9e DK |
752 | static void synaptics_report_buttons(struct psmouse *psmouse, |
753 | const struct synaptics_hw_state *hw) | |
754 | { | |
755 | struct input_dev *dev = psmouse->dev; | |
756 | struct synaptics_data *priv = psmouse->private; | |
757 | int i; | |
758 | ||
759 | input_report_key(dev, BTN_LEFT, hw->left); | |
760 | input_report_key(dev, BTN_RIGHT, hw->right); | |
761 | ||
762 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
763 | input_report_key(dev, BTN_MIDDLE, hw->middle); | |
764 | ||
765 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
766 | input_report_key(dev, BTN_FORWARD, hw->up); | |
767 | input_report_key(dev, BTN_BACK, hw->down); | |
768 | } | |
769 | ||
770 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
771 | input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i)); | |
772 | } | |
773 | ||
774 | static void synaptics_report_slot(struct input_dev *dev, int slot, | |
775 | const struct synaptics_hw_state *hw) | |
776 | { | |
777 | input_mt_slot(dev, slot); | |
778 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, (hw != NULL)); | |
779 | if (!hw) | |
780 | return; | |
781 | ||
782 | input_report_abs(dev, ABS_MT_POSITION_X, hw->x); | |
783 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(hw->y)); | |
784 | input_report_abs(dev, ABS_MT_PRESSURE, hw->z); | |
785 | } | |
786 | ||
787 | static void synaptics_report_mt_data(struct psmouse *psmouse, | |
4dc772d2 | 788 | struct synaptics_mt_state *mt_state, |
3cdfee9e DK |
789 | const struct synaptics_hw_state *sgm) |
790 | { | |
791 | struct input_dev *dev = psmouse->dev; | |
792 | struct synaptics_data *priv = psmouse->private; | |
793 | struct synaptics_hw_state *agm = &priv->agm; | |
4dc772d2 | 794 | struct synaptics_mt_state *old = &priv->mt_state; |
3cdfee9e | 795 | |
4dc772d2 | 796 | switch (mt_state->count) { |
3cdfee9e DK |
797 | case 0: |
798 | synaptics_report_slot(dev, 0, NULL); | |
799 | synaptics_report_slot(dev, 1, NULL); | |
800 | break; | |
801 | case 1: | |
4dc772d2 DK |
802 | if (mt_state->sgm == -1) { |
803 | synaptics_report_slot(dev, 0, NULL); | |
804 | synaptics_report_slot(dev, 1, NULL); | |
805 | } else if (mt_state->sgm == 0) { | |
806 | synaptics_report_slot(dev, 0, sgm); | |
807 | synaptics_report_slot(dev, 1, NULL); | |
808 | } else { | |
809 | synaptics_report_slot(dev, 0, NULL); | |
810 | synaptics_report_slot(dev, 1, sgm); | |
811 | } | |
3cdfee9e | 812 | break; |
4dc772d2 DK |
813 | default: |
814 | /* | |
815 | * If the finger slot contained in SGM is valid, and either | |
48064bdc DK |
816 | * hasn't changed, or is new, or the old SGM has now moved to |
817 | * AGM, then report SGM in MTB slot 0. | |
4dc772d2 DK |
818 | * Otherwise, empty MTB slot 0. |
819 | */ | |
820 | if (mt_state->sgm != -1 && | |
48064bdc DK |
821 | (mt_state->sgm == old->sgm || |
822 | old->sgm == -1 || mt_state->agm == old->sgm)) | |
4dc772d2 DK |
823 | synaptics_report_slot(dev, 0, sgm); |
824 | else | |
825 | synaptics_report_slot(dev, 0, NULL); | |
826 | ||
827 | /* | |
828 | * If the finger slot contained in AGM is valid, and either | |
829 | * hasn't changed, or is new, then report AGM in MTB slot 1. | |
830 | * Otherwise, empty MTB slot 1. | |
48064bdc DK |
831 | * |
832 | * However, in the case where the AGM is new, make sure that | |
833 | * that it is either the same as the old SGM, or there was no | |
834 | * SGM. | |
835 | * | |
836 | * Otherwise, if the SGM was just 1, and the new AGM is 2, then | |
837 | * the new AGM will keep the old SGM's tracking ID, which can | |
838 | * cause apparent drumroll. This happens if in the following | |
839 | * valid finger sequence: | |
840 | * | |
841 | * Action SGM AGM (MTB slot:Contact) | |
842 | * 1. Touch contact 0 (0:0) | |
843 | * 2. Touch contact 1 (0:0, 1:1) | |
844 | * 3. Lift contact 0 (1:1) | |
845 | * 4. Touch contacts 2,3 (0:2, 1:3) | |
846 | * | |
847 | * In step 4, contact 3, in AGM must not be given the same | |
848 | * tracking ID as contact 1 had in step 3. To avoid this, | |
849 | * the first agm with contact 3 is dropped and slot 1 is | |
850 | * invalidated (tracking ID = -1). | |
4dc772d2 DK |
851 | */ |
852 | if (mt_state->agm != -1 && | |
48064bdc DK |
853 | (mt_state->agm == old->agm || |
854 | (old->agm == -1 && | |
855 | (old->sgm == -1 || mt_state->agm == old->sgm)))) | |
4dc772d2 DK |
856 | synaptics_report_slot(dev, 1, agm); |
857 | else | |
858 | synaptics_report_slot(dev, 1, NULL); | |
3cdfee9e DK |
859 | break; |
860 | } | |
861 | ||
862 | /* Don't use active slot count to generate BTN_TOOL events. */ | |
863 | input_mt_report_pointer_emulation(dev, false); | |
864 | ||
865 | /* Send the number of fingers reported by touchpad itself. */ | |
4dc772d2 | 866 | input_mt_report_finger_count(dev, mt_state->count); |
3cdfee9e DK |
867 | |
868 | synaptics_report_buttons(psmouse, sgm); | |
869 | ||
870 | input_sync(dev); | |
871 | } | |
872 | ||
4dc772d2 DK |
873 | /* Handle case where mt_state->count = 0 */ |
874 | static void synaptics_image_sensor_0f(struct synaptics_data *priv, | |
875 | struct synaptics_mt_state *mt_state) | |
876 | { | |
877 | synaptics_mt_state_set(mt_state, 0, -1, -1); | |
878 | priv->mt_state_lost = false; | |
879 | } | |
880 | ||
881 | /* Handle case where mt_state->count = 1 */ | |
882 | static void synaptics_image_sensor_1f(struct synaptics_data *priv, | |
883 | struct synaptics_mt_state *mt_state) | |
884 | { | |
885 | struct synaptics_hw_state *agm = &priv->agm; | |
886 | struct synaptics_mt_state *old = &priv->mt_state; | |
887 | ||
888 | /* | |
889 | * If the last AGM was (0,0,0), and there is only one finger left, | |
890 | * then we absolutely know that SGM contains slot 0, and all other | |
891 | * fingers have been removed. | |
892 | */ | |
893 | if (priv->agm_pending && agm->z == 0) { | |
894 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
895 | priv->mt_state_lost = false; | |
896 | return; | |
897 | } | |
898 | ||
899 | switch (old->count) { | |
900 | case 0: | |
901 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
902 | break; | |
903 | case 1: | |
904 | /* | |
905 | * If mt_state_lost, then the previous transition was 3->1, | |
906 | * and SGM now contains either slot 0 or 1, but we don't know | |
907 | * which. So, we just assume that the SGM now contains slot 1. | |
908 | * | |
909 | * If pending AGM and either: | |
910 | * (a) the previous SGM slot contains slot 0, or | |
911 | * (b) there was no SGM slot | |
912 | * then, the SGM now contains slot 1 | |
913 | * | |
914 | * Case (a) happens with very rapid "drum roll" gestures, where | |
915 | * slot 0 finger is lifted and a new slot 1 finger touches | |
916 | * within one reporting interval. | |
917 | * | |
918 | * Case (b) happens if initially two or more fingers tap | |
919 | * briefly, and all but one lift before the end of the first | |
920 | * reporting interval. | |
921 | * | |
922 | * (In both these cases, slot 0 will becomes empty, so SGM | |
923 | * contains slot 1 with the new finger) | |
924 | * | |
925 | * Else, if there was no previous SGM, it now contains slot 0. | |
926 | * | |
927 | * Otherwise, SGM still contains the same slot. | |
928 | */ | |
929 | if (priv->mt_state_lost || | |
930 | (priv->agm_pending && old->sgm <= 0)) | |
931 | synaptics_mt_state_set(mt_state, 1, 1, -1); | |
932 | else if (old->sgm == -1) | |
933 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
934 | break; | |
935 | case 2: | |
936 | /* | |
937 | * If mt_state_lost, we don't know which finger SGM contains. | |
938 | * | |
939 | * So, report 1 finger, but with both slots empty. | |
940 | * We will use slot 1 on subsequent 1->1 | |
941 | */ | |
942 | if (priv->mt_state_lost) { | |
943 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
944 | break; | |
945 | } | |
946 | /* | |
947 | * Since the last AGM was NOT (0,0,0), it was the finger in | |
948 | * slot 0 that has been removed. | |
949 | * So, SGM now contains previous AGM's slot, and AGM is now | |
950 | * empty. | |
951 | */ | |
952 | synaptics_mt_state_set(mt_state, 1, old->agm, -1); | |
953 | break; | |
954 | case 3: | |
955 | /* | |
956 | * Since last AGM was not (0,0,0), we don't know which finger | |
957 | * is left. | |
958 | * | |
959 | * So, report 1 finger, but with both slots empty. | |
960 | * We will use slot 1 on subsequent 1->1 | |
961 | */ | |
962 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
963 | priv->mt_state_lost = true; | |
964 | break; | |
6b4b49fe DK |
965 | case 4: |
966 | case 5: | |
967 | /* mt_state was updated by AGM-CONTACT packet */ | |
968 | break; | |
4dc772d2 DK |
969 | } |
970 | } | |
971 | ||
972 | /* Handle case where mt_state->count = 2 */ | |
973 | static void synaptics_image_sensor_2f(struct synaptics_data *priv, | |
974 | struct synaptics_mt_state *mt_state) | |
975 | { | |
976 | struct synaptics_mt_state *old = &priv->mt_state; | |
977 | ||
978 | switch (old->count) { | |
979 | case 0: | |
980 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
981 | break; | |
982 | case 1: | |
983 | /* | |
984 | * If previous SGM contained slot 1 or higher, SGM now contains | |
985 | * slot 0 (the newly touching finger) and AGM contains SGM's | |
986 | * previous slot. | |
987 | * | |
988 | * Otherwise, SGM still contains slot 0 and AGM now contains | |
989 | * slot 1. | |
990 | */ | |
991 | if (old->sgm >= 1) | |
992 | synaptics_mt_state_set(mt_state, 2, 0, old->sgm); | |
993 | else | |
994 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
995 | break; | |
996 | case 2: | |
997 | /* | |
998 | * If mt_state_lost, SGM now contains either finger 1 or 2, but | |
999 | * we don't know which. | |
1000 | * So, we just assume that the SGM contains slot 0 and AGM 1. | |
1001 | */ | |
1002 | if (priv->mt_state_lost) | |
1003 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
1004 | /* | |
1005 | * Otherwise, use the same mt_state, since it either hasn't | |
1006 | * changed, or was updated by a recently received AGM-CONTACT | |
1007 | * packet. | |
1008 | */ | |
1009 | break; | |
1010 | case 3: | |
1011 | /* | |
1012 | * 3->2 transitions have two unsolvable problems: | |
1013 | * 1) no indication is given which finger was removed | |
1014 | * 2) no way to tell if agm packet was for finger 3 | |
1015 | * before 3->2, or finger 2 after 3->2. | |
1016 | * | |
1017 | * So, report 2 fingers, but empty all slots. | |
1018 | * We will guess slots [0,1] on subsequent 2->2. | |
1019 | */ | |
1020 | synaptics_mt_state_set(mt_state, 2, -1, -1); | |
1021 | priv->mt_state_lost = true; | |
1022 | break; | |
6b4b49fe DK |
1023 | case 4: |
1024 | case 5: | |
1025 | /* mt_state was updated by AGM-CONTACT packet */ | |
1026 | break; | |
4dc772d2 DK |
1027 | } |
1028 | } | |
1029 | ||
1030 | /* Handle case where mt_state->count = 3 */ | |
1031 | static void synaptics_image_sensor_3f(struct synaptics_data *priv, | |
1032 | struct synaptics_mt_state *mt_state) | |
1033 | { | |
1034 | struct synaptics_mt_state *old = &priv->mt_state; | |
1035 | ||
1036 | switch (old->count) { | |
1037 | case 0: | |
1038 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1039 | break; | |
1040 | case 1: | |
1041 | /* | |
1042 | * If previous SGM contained slot 2 or higher, SGM now contains | |
1043 | * slot 0 (one of the newly touching fingers) and AGM contains | |
1044 | * SGM's previous slot. | |
1045 | * | |
1046 | * Otherwise, SGM now contains slot 0 and AGM contains slot 2. | |
1047 | */ | |
1048 | if (old->sgm >= 2) | |
1049 | synaptics_mt_state_set(mt_state, 3, 0, old->sgm); | |
1050 | else | |
1051 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1052 | break; | |
1053 | case 2: | |
6b4b49fe DK |
1054 | /* |
1055 | * If the AGM previously contained slot 3 or higher, then the | |
1056 | * newly touching finger is in the lowest available slot. | |
1057 | * | |
1058 | * If SGM was previously 1 or higher, then the new SGM is | |
1059 | * now slot 0 (with a new finger), otherwise, the new finger | |
1060 | * is now in a hidden slot between 0 and AGM's slot. | |
1061 | * | |
1062 | * In all such cases, the SGM now contains slot 0, and the AGM | |
1063 | * continues to contain the same slot as before. | |
1064 | */ | |
1065 | if (old->agm >= 3) { | |
1066 | synaptics_mt_state_set(mt_state, 3, 0, old->agm); | |
1067 | break; | |
1068 | } | |
1069 | ||
4dc772d2 DK |
1070 | /* |
1071 | * After some 3->1 and all 3->2 transitions, we lose track | |
1072 | * of which slot is reported by SGM and AGM. | |
1073 | * | |
1074 | * For 2->3 in this state, report 3 fingers, but empty all | |
1075 | * slots, and we will guess (0,2) on a subsequent 0->3. | |
1076 | * | |
1077 | * To userspace, the resulting transition will look like: | |
1078 | * 2:[0,1] -> 3:[-1,-1] -> 3:[0,2] | |
1079 | */ | |
1080 | if (priv->mt_state_lost) { | |
1081 | synaptics_mt_state_set(mt_state, 3, -1, -1); | |
1082 | break; | |
1083 | } | |
1084 | ||
1085 | /* | |
1086 | * If the (SGM,AGM) really previously contained slots (0, 1), | |
1087 | * then we cannot know what slot was just reported by the AGM, | |
1088 | * because the 2->3 transition can occur either before or after | |
1089 | * the AGM packet. Thus, this most recent AGM could contain | |
1090 | * either the same old slot 1 or the new slot 2. | |
1091 | * Subsequent AGMs will be reporting slot 2. | |
1092 | * | |
1093 | * To userspace, the resulting transition will look like: | |
1094 | * 2:[0,1] -> 3:[0,-1] -> 3:[0,2] | |
1095 | */ | |
1096 | synaptics_mt_state_set(mt_state, 3, 0, -1); | |
1097 | break; | |
1098 | case 3: | |
1099 | /* | |
1100 | * If, for whatever reason, the previous agm was invalid, | |
1101 | * Assume SGM now contains slot 0, AGM now contains slot 2. | |
1102 | */ | |
1103 | if (old->agm <= 2) | |
1104 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1105 | /* | |
1106 | * mt_state either hasn't changed, or was updated by a recently | |
1107 | * received AGM-CONTACT packet. | |
1108 | */ | |
1109 | break; | |
6b4b49fe DK |
1110 | |
1111 | case 4: | |
1112 | case 5: | |
1113 | /* mt_state was updated by AGM-CONTACT packet */ | |
1114 | break; | |
4dc772d2 DK |
1115 | } |
1116 | } | |
1117 | ||
6b4b49fe DK |
1118 | /* Handle case where mt_state->count = 4, or = 5 */ |
1119 | static void synaptics_image_sensor_45f(struct synaptics_data *priv, | |
1120 | struct synaptics_mt_state *mt_state) | |
1121 | { | |
1122 | /* mt_state was updated correctly by AGM-CONTACT packet */ | |
1123 | priv->mt_state_lost = false; | |
1124 | } | |
1125 | ||
3cdfee9e DK |
1126 | static void synaptics_image_sensor_process(struct psmouse *psmouse, |
1127 | struct synaptics_hw_state *sgm) | |
1128 | { | |
4dc772d2 DK |
1129 | struct synaptics_data *priv = psmouse->private; |
1130 | struct synaptics_hw_state *agm = &priv->agm; | |
1131 | struct synaptics_mt_state mt_state; | |
3cdfee9e | 1132 | |
4dc772d2 DK |
1133 | /* Initialize using current mt_state (as updated by last agm) */ |
1134 | mt_state = agm->mt_state; | |
1135 | ||
1136 | /* | |
1137 | * Update mt_state using the new finger count and current mt_state. | |
1138 | */ | |
3cdfee9e | 1139 | if (sgm->z == 0) |
4dc772d2 | 1140 | synaptics_image_sensor_0f(priv, &mt_state); |
3cdfee9e | 1141 | else if (sgm->w >= 4) |
4dc772d2 | 1142 | synaptics_image_sensor_1f(priv, &mt_state); |
3cdfee9e | 1143 | else if (sgm->w == 0) |
4dc772d2 | 1144 | synaptics_image_sensor_2f(priv, &mt_state); |
6b4b49fe | 1145 | else if (sgm->w == 1 && mt_state.count <= 3) |
4dc772d2 | 1146 | synaptics_image_sensor_3f(priv, &mt_state); |
6b4b49fe DK |
1147 | else |
1148 | synaptics_image_sensor_45f(priv, &mt_state); | |
3cdfee9e DK |
1149 | |
1150 | /* Send resulting input events to user space */ | |
4dc772d2 DK |
1151 | synaptics_report_mt_data(psmouse, &mt_state, sgm); |
1152 | ||
1153 | /* Store updated mt_state */ | |
1154 | priv->mt_state = agm->mt_state = mt_state; | |
1155 | priv->agm_pending = false; | |
3cdfee9e DK |
1156 | } |
1157 | ||
e08d9afa HR |
1158 | static void synaptics_profile_sensor_process(struct psmouse *psmouse, |
1159 | struct synaptics_hw_state *sgm, | |
1160 | int num_fingers) | |
1161 | { | |
1162 | struct input_dev *dev = psmouse->dev; | |
1163 | struct synaptics_data *priv = psmouse->private; | |
1164 | struct synaptics_hw_state *hw[2] = { sgm, &priv->agm }; | |
1165 | struct input_mt_pos pos[2]; | |
1166 | int slot[2], nsemi, i; | |
1167 | ||
1168 | nsemi = clamp_val(num_fingers, 0, 2); | |
1169 | ||
1170 | for (i = 0; i < nsemi; i++) { | |
1171 | pos[i].x = hw[i]->x; | |
1172 | pos[i].y = synaptics_invert_y(hw[i]->y); | |
1173 | } | |
1174 | ||
1175 | input_mt_assign_slots(dev, slot, pos, nsemi); | |
1176 | ||
1177 | for (i = 0; i < nsemi; i++) { | |
1178 | input_mt_slot(dev, slot[i]); | |
1179 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, true); | |
1180 | input_report_abs(dev, ABS_MT_POSITION_X, pos[i].x); | |
1181 | input_report_abs(dev, ABS_MT_POSITION_Y, pos[i].y); | |
1182 | input_report_abs(dev, ABS_MT_PRESSURE, hw[i]->z); | |
1183 | } | |
1184 | ||
1185 | input_mt_drop_unused(dev); | |
1186 | input_mt_report_pointer_emulation(dev, false); | |
1187 | input_mt_report_finger_count(dev, num_fingers); | |
1188 | ||
1189 | synaptics_report_buttons(psmouse, sgm); | |
1190 | ||
1191 | input_sync(dev); | |
1192 | } | |
1193 | ||
1da177e4 LT |
1194 | /* |
1195 | * called for each full received packet from the touchpad | |
1196 | */ | |
1197 | static void synaptics_process_packet(struct psmouse *psmouse) | |
1198 | { | |
2e5b636b | 1199 | struct input_dev *dev = psmouse->dev; |
1da177e4 LT |
1200 | struct synaptics_data *priv = psmouse->private; |
1201 | struct synaptics_hw_state hw; | |
1202 | int num_fingers; | |
1203 | int finger_width; | |
1da177e4 | 1204 | |
fec6e525 HR |
1205 | if (synaptics_parse_hw_state(psmouse->packet, priv, &hw)) |
1206 | return; | |
1da177e4 | 1207 | |
3cdfee9e DK |
1208 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { |
1209 | synaptics_image_sensor_process(psmouse, &hw); | |
1210 | return; | |
1211 | } | |
1212 | ||
1da177e4 LT |
1213 | if (hw.scroll) { |
1214 | priv->scroll += hw.scroll; | |
1215 | ||
1216 | while (priv->scroll >= 4) { | |
1217 | input_report_key(dev, BTN_BACK, !hw.down); | |
1218 | input_sync(dev); | |
1219 | input_report_key(dev, BTN_BACK, hw.down); | |
1220 | input_sync(dev); | |
1221 | priv->scroll -= 4; | |
1222 | } | |
1223 | while (priv->scroll <= -4) { | |
1224 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
1225 | input_sync(dev); | |
1226 | input_report_key(dev, BTN_FORWARD, hw.up); | |
1227 | input_sync(dev); | |
1228 | priv->scroll += 4; | |
1229 | } | |
1230 | return; | |
1231 | } | |
1232 | ||
4f56ce92 | 1233 | if (hw.z > 0 && hw.x > 1) { |
1da177e4 LT |
1234 | num_fingers = 1; |
1235 | finger_width = 5; | |
1236 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
1237 | switch (hw.w) { | |
1238 | case 0 ... 1: | |
1239 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
1240 | num_fingers = hw.w + 2; | |
1241 | break; | |
1242 | case 2: | |
1243 | if (SYN_MODEL_PEN(priv->model_id)) | |
1244 | ; /* Nothing, treat a pen as a single finger */ | |
1245 | break; | |
1246 | case 4 ... 15: | |
1247 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
1248 | finger_width = hw.w; | |
1249 | break; | |
1250 | } | |
1251 | } | |
1252 | } else { | |
1253 | num_fingers = 0; | |
1254 | finger_width = 0; | |
1255 | } | |
1256 | ||
e08d9afa HR |
1257 | if (cr48_profile_sensor) { |
1258 | synaptics_profile_sensor_process(psmouse, &hw, num_fingers); | |
1259 | return; | |
1260 | } | |
1261 | ||
fec6e525 | 1262 | if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) |
7afdb842 DK |
1263 | synaptics_report_semi_mt_data(dev, &hw, &priv->agm, |
1264 | num_fingers); | |
fec6e525 | 1265 | |
1da177e4 LT |
1266 | /* Post events |
1267 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
1268 | * absolute -> relative conversion | |
1269 | */ | |
1270 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
1271 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
1272 | ||
4f56ce92 | 1273 | if (num_fingers > 0) { |
1da177e4 | 1274 | input_report_abs(dev, ABS_X, hw.x); |
6de58dd6 | 1275 | input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y)); |
1da177e4 LT |
1276 | } |
1277 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
1278 | ||
2a8e7710 CB |
1279 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
1280 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); | |
1281 | ||
1da177e4 | 1282 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); |
e42b6646 PH |
1283 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
1284 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); | |
1285 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); | |
1286 | } | |
1287 | ||
3cdfee9e | 1288 | synaptics_report_buttons(psmouse, &hw); |
1da177e4 LT |
1289 | |
1290 | input_sync(dev); | |
1291 | } | |
1292 | ||
b5d21704 DT |
1293 | static int synaptics_validate_byte(struct psmouse *psmouse, |
1294 | int idx, unsigned char pkt_type) | |
1da177e4 | 1295 | { |
e38de678 HD |
1296 | static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; |
1297 | static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; | |
1298 | static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; | |
1299 | static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; | |
1300 | static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; | |
b5d21704 | 1301 | const char *packet = psmouse->packet; |
1da177e4 LT |
1302 | |
1303 | if (idx < 0 || idx > 4) | |
1304 | return 0; | |
1305 | ||
1306 | switch (pkt_type) { | |
1da177e4 | 1307 | |
a62f0d27 DT |
1308 | case SYN_NEWABS: |
1309 | case SYN_NEWABS_RELAXED: | |
1310 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1311 | |
a62f0d27 DT |
1312 | case SYN_NEWABS_STRICT: |
1313 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1314 | |
a62f0d27 DT |
1315 | case SYN_OLDABS: |
1316 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
1317 | ||
1318 | default: | |
b5d21704 | 1319 | psmouse_err(psmouse, "unknown packet type %d\n", pkt_type); |
a62f0d27 | 1320 | return 0; |
1da177e4 LT |
1321 | } |
1322 | } | |
1323 | ||
1324 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) | |
1325 | { | |
1326 | int i; | |
1327 | ||
1328 | for (i = 0; i < 5; i++) | |
b5d21704 DT |
1329 | if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) { |
1330 | psmouse_info(psmouse, "using relaxed packet validation\n"); | |
1da177e4 LT |
1331 | return SYN_NEWABS_RELAXED; |
1332 | } | |
1333 | ||
1334 | return SYN_NEWABS_STRICT; | |
1335 | } | |
1336 | ||
7d12e780 | 1337 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) |
1da177e4 | 1338 | { |
1da177e4 LT |
1339 | struct synaptics_data *priv = psmouse->private; |
1340 | ||
1da177e4 LT |
1341 | if (psmouse->pktcnt >= 6) { /* Full packet received */ |
1342 | if (unlikely(priv->pkt_type == SYN_NEWABS)) | |
1343 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); | |
1344 | ||
a8b3c0f5 DT |
1345 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && |
1346 | synaptics_is_pt_packet(psmouse->packet)) { | |
1347 | if (priv->pt_port) | |
1348 | synaptics_pass_pt_packet(priv->pt_port, psmouse->packet); | |
1da177e4 LT |
1349 | } else |
1350 | synaptics_process_packet(psmouse); | |
1351 | ||
1352 | return PSMOUSE_FULL_PACKET; | |
1353 | } | |
1354 | ||
b5d21704 | 1355 | return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ? |
1da177e4 LT |
1356 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; |
1357 | } | |
1358 | ||
1359 | /***************************************************************************** | |
1360 | * Driver initialization/cleanup functions | |
1361 | ****************************************************************************/ | |
85615476 DK |
1362 | static void set_abs_position_params(struct input_dev *dev, |
1363 | struct synaptics_data *priv, int x_code, | |
1364 | int y_code) | |
1da177e4 | 1365 | { |
85615476 DK |
1366 | int x_min = priv->x_min ?: XMIN_NOMINAL; |
1367 | int x_max = priv->x_max ?: XMAX_NOMINAL; | |
1368 | int y_min = priv->y_min ?: YMIN_NOMINAL; | |
1369 | int y_max = priv->y_max ?: YMAX_NOMINAL; | |
a9f0b79e DK |
1370 | int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ? |
1371 | SYN_REDUCED_FILTER_FUZZ : 0; | |
1da177e4 | 1372 | |
85615476 DK |
1373 | input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0); |
1374 | input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0); | |
1375 | input_abs_set_res(dev, x_code, priv->x_res); | |
1376 | input_abs_set_res(dev, y_code, priv->y_res); | |
1377 | } | |
1378 | ||
43e19888 HG |
1379 | static void set_input_params(struct psmouse *psmouse, |
1380 | struct synaptics_data *priv) | |
85615476 | 1381 | { |
43e19888 | 1382 | struct input_dev *dev = psmouse->dev; |
85615476 DK |
1383 | int i; |
1384 | ||
7968a5dd | 1385 | /* Things that apply to both modes */ |
c14890a8 | 1386 | __set_bit(INPUT_PROP_POINTER, dev->propbit); |
7968a5dd DD |
1387 | __set_bit(EV_KEY, dev->evbit); |
1388 | __set_bit(BTN_LEFT, dev->keybit); | |
1389 | __set_bit(BTN_RIGHT, dev->keybit); | |
c14890a8 | 1390 | |
7968a5dd DD |
1391 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
1392 | __set_bit(BTN_MIDDLE, dev->keybit); | |
1393 | ||
1394 | if (!priv->absolute_mode) { | |
1395 | /* Relative mode */ | |
1396 | __set_bit(EV_REL, dev->evbit); | |
1397 | __set_bit(REL_X, dev->relbit); | |
1398 | __set_bit(REL_Y, dev->relbit); | |
1399 | return; | |
1400 | } | |
1401 | ||
1402 | /* Absolute mode */ | |
b7802c5c | 1403 | __set_bit(EV_ABS, dev->evbit); |
85615476 | 1404 | set_abs_position_params(dev, priv, ABS_X, ABS_Y); |
1da177e4 | 1405 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); |
2a8e7710 | 1406 | |
e08d9afa HR |
1407 | if (cr48_profile_sensor) |
1408 | input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
1409 | ||
3cdfee9e | 1410 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { |
3cdfee9e DK |
1411 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, |
1412 | ABS_MT_POSITION_Y); | |
1413 | /* Image sensors can report per-contact pressure */ | |
1414 | input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
0b85bf78 | 1415 | input_mt_init_slots(dev, 2, INPUT_MT_POINTER); |
6b4b49fe DK |
1416 | |
1417 | /* Image sensors can signal 4 and 5 finger clicks */ | |
1418 | __set_bit(BTN_TOOL_QUADTAP, dev->keybit); | |
1419 | __set_bit(BTN_TOOL_QUINTTAP, dev->keybit); | |
3cdfee9e | 1420 | } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) { |
85615476 DK |
1421 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, |
1422 | ABS_MT_POSITION_Y); | |
e08d9afa HR |
1423 | /* |
1424 | * Profile sensor in CR-48 tracks contacts reasonably well, | |
1425 | * other non-image sensors with AGM use semi-mt. | |
1426 | */ | |
ae84197f | 1427 | input_mt_init_slots(dev, 2, |
e08d9afa HR |
1428 | INPUT_MT_POINTER | |
1429 | (cr48_profile_sensor ? | |
1430 | INPUT_MT_TRACK : INPUT_MT_SEMI_MT)); | |
fec6e525 HR |
1431 | } |
1432 | ||
2a8e7710 | 1433 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
58fb0218 | 1434 | input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0); |
1da177e4 | 1435 | |
b7802c5c DT |
1436 | __set_bit(BTN_TOUCH, dev->keybit); |
1437 | __set_bit(BTN_TOOL_FINGER, dev->keybit); | |
1da177e4 | 1438 | |
e42b6646 | 1439 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
b7802c5c DT |
1440 | __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); |
1441 | __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); | |
e42b6646 PH |
1442 | } |
1443 | ||
1da177e4 LT |
1444 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || |
1445 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
b7802c5c DT |
1446 | __set_bit(BTN_FORWARD, dev->keybit); |
1447 | __set_bit(BTN_BACK, dev->keybit); | |
1da177e4 LT |
1448 | } |
1449 | ||
1450 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
b7802c5c | 1451 | __set_bit(BTN_0 + i, dev->keybit); |
1da177e4 | 1452 | |
b7802c5c DT |
1453 | __clear_bit(EV_REL, dev->evbit); |
1454 | __clear_bit(REL_X, dev->relbit); | |
1455 | __clear_bit(REL_Y, dev->relbit); | |
ec20a022 | 1456 | |
5f57d67d | 1457 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { |
c14890a8 | 1458 | __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); |
e2f61102 HG |
1459 | if (matches_pnp_id(psmouse, topbuttonpad_pnp_ids)) |
1460 | __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit); | |
5f57d67d TI |
1461 | /* Clickpads report only left button */ |
1462 | __clear_bit(BTN_RIGHT, dev->keybit); | |
1463 | __clear_bit(BTN_MIDDLE, dev->keybit); | |
1464 | } | |
1da177e4 LT |
1465 | } |
1466 | ||
7968a5dd DD |
1467 | static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse, |
1468 | void *data, char *buf) | |
1469 | { | |
1470 | struct synaptics_data *priv = psmouse->private; | |
1471 | ||
1472 | return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0'); | |
1473 | } | |
1474 | ||
1475 | static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse, | |
1476 | void *data, const char *buf, | |
1477 | size_t len) | |
1478 | { | |
1479 | struct synaptics_data *priv = psmouse->private; | |
1480 | unsigned int value; | |
1481 | int err; | |
1482 | ||
1483 | err = kstrtouint(buf, 10, &value); | |
1484 | if (err) | |
1485 | return err; | |
1486 | ||
1487 | if (value > 1) | |
1488 | return -EINVAL; | |
1489 | ||
1490 | if (value == priv->disable_gesture) | |
1491 | return len; | |
1492 | ||
1493 | priv->disable_gesture = value; | |
1494 | if (value) | |
1495 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
1496 | else | |
1497 | priv->mode &= ~SYN_BIT_DISABLE_GESTURE; | |
1498 | ||
1499 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
1500 | return -EIO; | |
1501 | ||
1502 | return len; | |
1503 | } | |
1504 | ||
1505 | PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL, | |
1506 | synaptics_show_disable_gesture, | |
1507 | synaptics_set_disable_gesture); | |
1508 | ||
1da177e4 LT |
1509 | static void synaptics_disconnect(struct psmouse *psmouse) |
1510 | { | |
7968a5dd DD |
1511 | struct synaptics_data *priv = psmouse->private; |
1512 | ||
1513 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1514 | device_remove_file(&psmouse->ps2dev.serio->dev, | |
1515 | &psmouse_attr_disable_gesture.dattr); | |
1516 | ||
1da177e4 | 1517 | synaptics_reset(psmouse); |
7968a5dd | 1518 | kfree(priv); |
1da177e4 LT |
1519 | psmouse->private = NULL; |
1520 | } | |
1521 | ||
1522 | static int synaptics_reconnect(struct psmouse *psmouse) | |
1523 | { | |
1524 | struct synaptics_data *priv = psmouse->private; | |
1525 | struct synaptics_data old_priv = *priv; | |
eeb06558 | 1526 | unsigned char param[2]; |
c63fe0a4 APF |
1527 | int retry = 0; |
1528 | int error; | |
1da177e4 | 1529 | |
c63fe0a4 APF |
1530 | do { |
1531 | psmouse_reset(psmouse); | |
8521478f DT |
1532 | if (retry) { |
1533 | /* | |
1534 | * On some boxes, right after resuming, the touchpad | |
1535 | * needs some time to finish initializing (I assume | |
1536 | * it needs time to calibrate) and start responding | |
1537 | * to Synaptics-specific queries, so let's wait a | |
1538 | * bit. | |
1539 | */ | |
1540 | ssleep(1); | |
1541 | } | |
eeb06558 | 1542 | ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID); |
c63fe0a4 APF |
1543 | error = synaptics_detect(psmouse, 0); |
1544 | } while (error && ++retry < 3); | |
4d368456 | 1545 | |
c63fe0a4 | 1546 | if (error) |
1da177e4 LT |
1547 | return -1; |
1548 | ||
c63fe0a4 | 1549 | if (retry > 1) |
b5d21704 | 1550 | psmouse_dbg(psmouse, "reconnected after %d tries\n", retry); |
c63fe0a4 | 1551 | |
1da177e4 | 1552 | if (synaptics_query_hardware(psmouse)) { |
b5d21704 | 1553 | psmouse_err(psmouse, "Unable to query device.\n"); |
1da177e4 LT |
1554 | return -1; |
1555 | } | |
1556 | ||
7968a5dd | 1557 | if (synaptics_set_mode(psmouse)) { |
b5d21704 | 1558 | psmouse_err(psmouse, "Unable to initialize device.\n"); |
1da177e4 LT |
1559 | return -1; |
1560 | } | |
1561 | ||
baddf589 APF |
1562 | if (old_priv.identity != priv->identity || |
1563 | old_priv.model_id != priv->model_id || | |
1564 | old_priv.capabilities != priv->capabilities || | |
1565 | old_priv.ext_cap != priv->ext_cap) { | |
b5d21704 DT |
1566 | psmouse_err(psmouse, |
1567 | "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n", | |
1568 | old_priv.identity, priv->identity, | |
1569 | old_priv.model_id, priv->model_id, | |
1570 | old_priv.capabilities, priv->capabilities, | |
1571 | old_priv.ext_cap, priv->ext_cap); | |
baddf589 APF |
1572 | return -1; |
1573 | } | |
1574 | ||
1da177e4 LT |
1575 | return 0; |
1576 | } | |
1577 | ||
7705d548 DT |
1578 | static bool impaired_toshiba_kbc; |
1579 | ||
c963156c | 1580 | static const struct dmi_system_id toshiba_dmi_table[] __initconst = { |
7705d548 | 1581 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) |
1da177e4 | 1582 | { |
9961e259 | 1583 | /* Toshiba Satellite */ |
1da177e4 LT |
1584 | .matches = { |
1585 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c | 1586 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
1da177e4 LT |
1587 | }, |
1588 | }, | |
9ba5eaaf | 1589 | { |
9961e259 | 1590 | /* Toshiba Dynabook */ |
9ba5eaaf SH |
1591 | .matches = { |
1592 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c RT |
1593 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), |
1594 | }, | |
1595 | }, | |
1596 | { | |
9961e259 | 1597 | /* Toshiba Portege M300 */ |
53a2670c RT |
1598 | .matches = { |
1599 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1600 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), | |
9ba5eaaf | 1601 | }, |
5f5eeff4 DT |
1602 | |
1603 | }, | |
1604 | { | |
9961e259 | 1605 | /* Toshiba Portege M300 */ |
5f5eeff4 DT |
1606 | .matches = { |
1607 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1608 | DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), | |
1609 | DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), | |
1610 | }, | |
1611 | ||
9ba5eaaf | 1612 | }, |
1da177e4 | 1613 | #endif |
70874867 | 1614 | { } |
7705d548 DT |
1615 | }; |
1616 | ||
ef8313bb AS |
1617 | static bool broken_olpc_ec; |
1618 | ||
c963156c | 1619 | static const struct dmi_system_id olpc_dmi_table[] __initconst = { |
ef8313bb AS |
1620 | #if defined(CONFIG_DMI) && defined(CONFIG_OLPC) |
1621 | { | |
1622 | /* OLPC XO-1 or XO-1.5 */ | |
1623 | .matches = { | |
1624 | DMI_MATCH(DMI_SYS_VENDOR, "OLPC"), | |
1625 | DMI_MATCH(DMI_PRODUCT_NAME, "XO"), | |
1626 | }, | |
1627 | }, | |
ef8313bb | 1628 | #endif |
70874867 | 1629 | { } |
ef8313bb AS |
1630 | }; |
1631 | ||
e08d9afa HR |
1632 | static const struct dmi_system_id __initconst cr48_dmi_table[] = { |
1633 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) | |
1634 | { | |
1635 | /* Cr-48 Chromebook (Codename Mario) */ | |
1636 | .matches = { | |
1637 | DMI_MATCH(DMI_SYS_VENDOR, "IEC"), | |
1638 | DMI_MATCH(DMI_PRODUCT_NAME, "Mario"), | |
1639 | }, | |
1640 | }, | |
1641 | #endif | |
1642 | { } | |
1643 | }; | |
1644 | ||
7705d548 DT |
1645 | void __init synaptics_module_init(void) |
1646 | { | |
1647 | impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); | |
ef8313bb | 1648 | broken_olpc_ec = dmi_check_system(olpc_dmi_table); |
e08d9afa | 1649 | cr48_profile_sensor = dmi_check_system(cr48_dmi_table); |
7705d548 | 1650 | } |
1da177e4 | 1651 | |
7968a5dd | 1652 | static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) |
1da177e4 LT |
1653 | { |
1654 | struct synaptics_data *priv; | |
7968a5dd | 1655 | int err = -1; |
1da177e4 | 1656 | |
ef8313bb | 1657 | /* |
83551c01 DD |
1658 | * The OLPC XO has issues with Synaptics' absolute mode; the constant |
1659 | * packet spew overloads the EC such that key presses on the keyboard | |
1660 | * are missed. Given that, don't even attempt to use Absolute mode. | |
1661 | * Relative mode seems to work just fine. | |
ef8313bb | 1662 | */ |
83551c01 | 1663 | if (absolute_mode && broken_olpc_ec) { |
b5d21704 DT |
1664 | psmouse_info(psmouse, |
1665 | "OLPC XO detected, not enabling Synaptics protocol.\n"); | |
ef8313bb AS |
1666 | return -ENODEV; |
1667 | } | |
1668 | ||
b39787a9 | 1669 | psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); |
1da177e4 | 1670 | if (!priv) |
6792cbbb | 1671 | return -ENOMEM; |
1da177e4 | 1672 | |
4d368456 AW |
1673 | psmouse_reset(psmouse); |
1674 | ||
1da177e4 | 1675 | if (synaptics_query_hardware(psmouse)) { |
b5d21704 | 1676 | psmouse_err(psmouse, "Unable to query device.\n"); |
1da177e4 LT |
1677 | goto init_fail; |
1678 | } | |
1679 | ||
7968a5dd DD |
1680 | priv->absolute_mode = absolute_mode; |
1681 | if (SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1682 | priv->disable_gesture = true; | |
1da177e4 | 1683 | |
7968a5dd DD |
1684 | if (synaptics_set_mode(psmouse)) { |
1685 | psmouse_err(psmouse, "Unable to initialize device.\n"); | |
fec6e525 HR |
1686 | goto init_fail; |
1687 | } | |
1688 | ||
1da177e4 LT |
1689 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; |
1690 | ||
b5d21704 | 1691 | psmouse_info(psmouse, |
c6bd9d46 | 1692 | "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n", |
b5d21704 DT |
1693 | SYN_ID_MODEL(priv->identity), |
1694 | SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), | |
1695 | priv->model_id, | |
c6bd9d46 DK |
1696 | priv->capabilities, priv->ext_cap, priv->ext_cap_0c, |
1697 | priv->board_id, priv->firmware_id); | |
409b7506 | 1698 | |
43e19888 | 1699 | set_input_params(psmouse, priv); |
1da177e4 | 1700 | |
887cc127 DT |
1701 | /* |
1702 | * Encode touchpad model so that it can be used to set | |
1703 | * input device->id.version and be visible to userspace. | |
1704 | * Because version is __u16 we have to drop something. | |
1705 | * Hardware info bits seem to be good candidates as they | |
1706 | * are documented to be for Synaptics corp. internal use. | |
1707 | */ | |
1708 | psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | | |
1709 | (priv->model_id & 0x000000ff); | |
1710 | ||
7968a5dd DD |
1711 | if (absolute_mode) { |
1712 | psmouse->protocol_handler = synaptics_process_byte; | |
1713 | psmouse->pktsize = 6; | |
1714 | } else { | |
1715 | /* Relative mode follows standard PS/2 mouse protocol */ | |
1716 | psmouse->protocol_handler = psmouse_process_byte; | |
1717 | psmouse->pktsize = 3; | |
1718 | } | |
1719 | ||
1da177e4 LT |
1720 | psmouse->set_rate = synaptics_set_rate; |
1721 | psmouse->disconnect = synaptics_disconnect; | |
1722 | psmouse->reconnect = synaptics_reconnect; | |
a1cec061 | 1723 | psmouse->cleanup = synaptics_reset; |
f0d5c6f4 DT |
1724 | /* Synaptics can usually stay in sync without extra help */ |
1725 | psmouse->resync_time = 0; | |
1da177e4 LT |
1726 | |
1727 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
1728 | synaptics_pt_create(psmouse); | |
1729 | ||
1da177e4 LT |
1730 | /* |
1731 | * Toshiba's KBC seems to have trouble handling data from | |
7ee99161 AS |
1732 | * Synaptics at full rate. Switch to a lower rate (roughly |
1733 | * the same rate as a standard PS/2 mouse). | |
1da177e4 | 1734 | */ |
7705d548 | 1735 | if (psmouse->rate >= 80 && impaired_toshiba_kbc) { |
b5d21704 DT |
1736 | psmouse_info(psmouse, |
1737 | "Toshiba %s detected, limiting rate to 40pps.\n", | |
1738 | dmi_get_system_info(DMI_PRODUCT_NAME)); | |
1da177e4 LT |
1739 | psmouse->rate = 40; |
1740 | } | |
1da177e4 | 1741 | |
7968a5dd DD |
1742 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) { |
1743 | err = device_create_file(&psmouse->ps2dev.serio->dev, | |
1744 | &psmouse_attr_disable_gesture.dattr); | |
1745 | if (err) { | |
1746 | psmouse_err(psmouse, | |
1747 | "Failed to create disable_gesture attribute (%d)", | |
1748 | err); | |
1749 | goto init_fail; | |
1750 | } | |
1751 | } | |
1752 | ||
1da177e4 LT |
1753 | return 0; |
1754 | ||
1755 | init_fail: | |
1756 | kfree(priv); | |
7968a5dd DD |
1757 | return err; |
1758 | } | |
1759 | ||
1760 | int synaptics_init(struct psmouse *psmouse) | |
1761 | { | |
1762 | return __synaptics_init(psmouse, true); | |
1763 | } | |
1764 | ||
1765 | int synaptics_init_relative(struct psmouse *psmouse) | |
1766 | { | |
1767 | return __synaptics_init(psmouse, false); | |
1da177e4 LT |
1768 | } |
1769 | ||
e4e6efd2 DD |
1770 | bool synaptics_supported(void) |
1771 | { | |
1772 | return true; | |
1773 | } | |
1774 | ||
55e3d922 AS |
1775 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
1776 | ||
7705d548 DT |
1777 | void __init synaptics_module_init(void) |
1778 | { | |
1779 | } | |
1780 | ||
55e3d922 AS |
1781 | int synaptics_init(struct psmouse *psmouse) |
1782 | { | |
1783 | return -ENOSYS; | |
1784 | } | |
1785 | ||
e4e6efd2 DD |
1786 | bool synaptics_supported(void) |
1787 | { | |
1788 | return false; | |
1789 | } | |
1790 | ||
55e3d922 | 1791 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ |