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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 | |
0f68f39c HG |
120 | struct min_max_quirk { |
121 | const char * const *pnp_ids; | |
122 | int x_min, x_max, y_min, y_max; | |
123 | }; | |
124 | ||
125 | static const struct min_max_quirk min_max_pnpid_table[] = { | |
126 | { | |
127 | (const char * const []){"LEN0033", NULL}, | |
128 | 1024, 5052, 2258, 4832 | |
129 | }, | |
130 | { | |
131 | (const char * const []){"LEN0035", "LEN0042", NULL}, | |
132 | 1232, 5710, 1156, 4696 | |
133 | }, | |
134 | { | |
135 | (const char * const []){"LEN0034", "LEN0036", "LEN2004", NULL}, | |
136 | 1024, 5112, 2024, 4832 | |
137 | }, | |
138 | { | |
139 | (const char * const []){"LEN2001", NULL}, | |
140 | 1024, 5022, 2508, 4832 | |
141 | }, | |
142 | { } | |
143 | }; | |
144 | ||
43e19888 HG |
145 | /* This list has been kindly provided by Synaptics. */ |
146 | static const char * const topbuttonpad_pnp_ids[] = { | |
147 | "LEN0017", | |
148 | "LEN0018", | |
149 | "LEN0019", | |
150 | "LEN0023", | |
151 | "LEN002A", | |
152 | "LEN002B", | |
153 | "LEN002C", | |
154 | "LEN002D", | |
155 | "LEN002E", | |
156 | "LEN0033", /* Helix */ | |
0f68f39c | 157 | "LEN0034", /* T431s, L440, L540, T540, W540, X1 Carbon 2nd */ |
43e19888 HG |
158 | "LEN0035", /* X240 */ |
159 | "LEN0036", /* T440 */ | |
160 | "LEN0037", | |
161 | "LEN0038", | |
162 | "LEN0041", | |
163 | "LEN0042", /* Yoga */ | |
164 | "LEN0045", | |
165 | "LEN0046", | |
166 | "LEN0047", | |
167 | "LEN0048", | |
168 | "LEN0049", | |
169 | "LEN2000", | |
0f68f39c | 170 | "LEN2001", /* Edge E431 */ |
43e19888 HG |
171 | "LEN2002", |
172 | "LEN2003", | |
173 | "LEN2004", /* L440 */ | |
174 | "LEN2005", | |
175 | "LEN2006", | |
176 | "LEN2007", | |
177 | "LEN2008", | |
178 | "LEN2009", | |
179 | "LEN200A", | |
180 | "LEN200B", | |
181 | NULL | |
182 | }; | |
55e3d922 | 183 | |
e2f61102 HG |
184 | static bool matches_pnp_id(struct psmouse *psmouse, const char * const ids[]) |
185 | { | |
186 | int i; | |
187 | ||
188 | if (!strncmp(psmouse->ps2dev.serio->firmware_id, "PNP:", 4)) | |
189 | for (i = 0; ids[i]; i++) | |
190 | if (strstr(psmouse->ps2dev.serio->firmware_id, ids[i])) | |
191 | return true; | |
192 | ||
193 | return false; | |
194 | } | |
195 | ||
55e3d922 AS |
196 | /***************************************************************************** |
197 | * Synaptics communications functions | |
198 | ****************************************************************************/ | |
199 | ||
1a49a0a0 JD |
200 | /* |
201 | * Synaptics touchpads report the y coordinate from bottom to top, which is | |
202 | * opposite from what userspace expects. | |
203 | * This function is used to invert y before reporting. | |
204 | */ | |
205 | static int synaptics_invert_y(int y) | |
206 | { | |
207 | return YMAX_NOMINAL + YMIN_NOMINAL - y; | |
208 | } | |
209 | ||
1da177e4 | 210 | /* |
55e3d922 | 211 | * Send a command to the synpatics touchpad by special commands |
1da177e4 | 212 | */ |
55e3d922 | 213 | static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) |
1da177e4 | 214 | { |
55e3d922 | 215 | if (psmouse_sliced_command(psmouse, c)) |
1da177e4 | 216 | return -1; |
55e3d922 | 217 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) |
1da177e4 LT |
218 | return -1; |
219 | return 0; | |
220 | } | |
221 | ||
222 | /* | |
223 | * Read the model-id bytes from the touchpad | |
224 | * see also SYN_MODEL_* macros | |
225 | */ | |
226 | static int synaptics_model_id(struct psmouse *psmouse) | |
227 | { | |
228 | struct synaptics_data *priv = psmouse->private; | |
229 | unsigned char mi[3]; | |
230 | ||
231 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) | |
232 | return -1; | |
233 | priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; | |
234 | return 0; | |
235 | } | |
236 | ||
c6bd9d46 DK |
237 | /* |
238 | * Read the board id from the touchpad | |
239 | * The board id is encoded in the "QUERY MODES" response | |
240 | */ | |
241 | static int synaptics_board_id(struct psmouse *psmouse) | |
242 | { | |
243 | struct synaptics_data *priv = psmouse->private; | |
244 | unsigned char bid[3]; | |
245 | ||
246 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid)) | |
247 | return -1; | |
248 | priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; | |
249 | return 0; | |
250 | } | |
251 | ||
252 | /* | |
253 | * Read the firmware id from the touchpad | |
254 | */ | |
255 | static int synaptics_firmware_id(struct psmouse *psmouse) | |
256 | { | |
257 | struct synaptics_data *priv = psmouse->private; | |
258 | unsigned char fwid[3]; | |
259 | ||
260 | if (synaptics_send_cmd(psmouse, SYN_QUE_FIRMWARE_ID, fwid)) | |
261 | return -1; | |
262 | priv->firmware_id = (fwid[0] << 16) | (fwid[1] << 8) | fwid[2]; | |
263 | return 0; | |
264 | } | |
265 | ||
1da177e4 LT |
266 | /* |
267 | * Read the capability-bits from the touchpad | |
268 | * see also the SYN_CAP_* macros | |
269 | */ | |
270 | static int synaptics_capability(struct psmouse *psmouse) | |
271 | { | |
272 | struct synaptics_data *priv = psmouse->private; | |
273 | unsigned char cap[3]; | |
274 | ||
275 | if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) | |
276 | return -1; | |
277 | priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
5f57d67d TI |
278 | priv->ext_cap = priv->ext_cap_0c = 0; |
279 | ||
3619b8fe DT |
280 | /* |
281 | * Older firmwares had submodel ID fixed to 0x47 | |
282 | */ | |
283 | if (SYN_ID_FULL(priv->identity) < 0x705 && | |
284 | SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) { | |
1da177e4 | 285 | return -1; |
3619b8fe | 286 | } |
1da177e4 LT |
287 | |
288 | /* | |
289 | * Unless capExtended is set the rest of the flags should be ignored | |
290 | */ | |
291 | if (!SYN_CAP_EXTENDED(priv->capabilities)) | |
292 | priv->capabilities = 0; | |
293 | ||
294 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { | |
295 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { | |
b5d21704 DT |
296 | psmouse_warn(psmouse, |
297 | "device claims to have extended capabilities, but I'm not able to read them.\n"); | |
1da177e4 LT |
298 | } else { |
299 | priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
300 | ||
301 | /* | |
302 | * if nExtBtn is greater than 8 it should be considered | |
303 | * invalid and treated as 0 | |
304 | */ | |
305 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) | |
306 | priv->ext_cap &= 0xff0fff; | |
307 | } | |
308 | } | |
5f57d67d TI |
309 | |
310 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) { | |
311 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) { | |
b5d21704 DT |
312 | psmouse_warn(psmouse, |
313 | "device claims to have extended capability 0x0c, but I'm not able to read it.\n"); | |
5f57d67d TI |
314 | } else { |
315 | priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
316 | } | |
317 | } | |
318 | ||
1da177e4 LT |
319 | return 0; |
320 | } | |
321 | ||
322 | /* | |
323 | * Identify Touchpad | |
324 | * See also the SYN_ID_* macros | |
325 | */ | |
326 | static int synaptics_identify(struct psmouse *psmouse) | |
327 | { | |
328 | struct synaptics_data *priv = psmouse->private; | |
329 | unsigned char id[3]; | |
330 | ||
331 | if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) | |
332 | return -1; | |
333 | priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; | |
334 | if (SYN_ID_IS_SYNAPTICS(priv->identity)) | |
335 | return 0; | |
336 | return -1; | |
337 | } | |
338 | ||
ec20a022 | 339 | /* |
83ba9ea8 | 340 | * Read touchpad resolution and maximum reported coordinates |
ec20a022 TS |
341 | * Resolution is left zero if touchpad does not support the query |
342 | */ | |
421e08c4 | 343 | |
ec20a022 TS |
344 | static int synaptics_resolution(struct psmouse *psmouse) |
345 | { | |
346 | struct synaptics_data *priv = psmouse->private; | |
a66413fb | 347 | unsigned char resp[3]; |
0f68f39c | 348 | int i; |
ec20a022 TS |
349 | |
350 | if (SYN_ID_MAJOR(priv->identity) < 4) | |
bbddd199 | 351 | return 0; |
ec20a022 | 352 | |
a66413fb DT |
353 | if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) { |
354 | if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) { | |
355 | priv->x_res = resp[0]; /* x resolution in units/mm */ | |
356 | priv->y_res = resp[2]; /* y resolution in units/mm */ | |
83ba9ea8 DT |
357 | } |
358 | } | |
ec20a022 | 359 | |
d49cb7ae BT |
360 | for (i = 0; min_max_pnpid_table[i].pnp_ids; i++) { |
361 | if (matches_pnp_id(psmouse, min_max_pnpid_table[i].pnp_ids)) { | |
362 | priv->x_min = min_max_pnpid_table[i].x_min; | |
363 | priv->x_max = min_max_pnpid_table[i].x_max; | |
364 | priv->y_min = min_max_pnpid_table[i].y_min; | |
365 | priv->y_max = min_max_pnpid_table[i].y_max; | |
366 | return 0; | |
367 | } | |
368 | } | |
369 | ||
83ba9ea8 DT |
370 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && |
371 | SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { | |
a66413fb | 372 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) { |
b5d21704 DT |
373 | psmouse_warn(psmouse, |
374 | "device claims to have max coordinates query, but I'm not able to read it.\n"); | |
a66413fb DT |
375 | } else { |
376 | priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); | |
377 | priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
378 | } | |
379 | } | |
380 | ||
381 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 && | |
382 | SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) { | |
383 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) { | |
b5d21704 DT |
384 | psmouse_warn(psmouse, |
385 | "device claims to have min coordinates query, but I'm not able to read it.\n"); | |
83ba9ea8 | 386 | } else { |
a66413fb DT |
387 | priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); |
388 | priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
83ba9ea8 | 389 | } |
ec20a022 TS |
390 | } |
391 | ||
392 | return 0; | |
393 | } | |
394 | ||
1da177e4 LT |
395 | static int synaptics_query_hardware(struct psmouse *psmouse) |
396 | { | |
1da177e4 LT |
397 | if (synaptics_identify(psmouse)) |
398 | return -1; | |
399 | if (synaptics_model_id(psmouse)) | |
400 | return -1; | |
c6bd9d46 DK |
401 | if (synaptics_firmware_id(psmouse)) |
402 | return -1; | |
403 | if (synaptics_board_id(psmouse)) | |
404 | return -1; | |
1da177e4 LT |
405 | if (synaptics_capability(psmouse)) |
406 | return -1; | |
ec20a022 TS |
407 | if (synaptics_resolution(psmouse)) |
408 | return -1; | |
1da177e4 LT |
409 | |
410 | return 0; | |
411 | } | |
412 | ||
7968a5dd DD |
413 | static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse) |
414 | { | |
415 | static unsigned char param = 0xc8; | |
416 | struct synaptics_data *priv = psmouse->private; | |
417 | ||
899c612d BH |
418 | if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || |
419 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c))) | |
7968a5dd DD |
420 | return 0; |
421 | ||
422 | if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL)) | |
423 | return -1; | |
424 | ||
425 | if (ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE)) | |
426 | return -1; | |
427 | ||
428 | /* Advanced gesture mode also sends multi finger data */ | |
429 | priv->capabilities |= BIT(1); | |
430 | ||
431 | return 0; | |
432 | } | |
433 | ||
434 | static int synaptics_set_mode(struct psmouse *psmouse) | |
1da177e4 LT |
435 | { |
436 | struct synaptics_data *priv = psmouse->private; | |
437 | ||
7968a5dd DD |
438 | priv->mode = 0; |
439 | if (priv->absolute_mode) | |
440 | priv->mode |= SYN_BIT_ABSOLUTE_MODE; | |
441 | if (priv->disable_gesture) | |
1da177e4 | 442 | priv->mode |= SYN_BIT_DISABLE_GESTURE; |
7968a5dd DD |
443 | if (psmouse->rate >= 80) |
444 | priv->mode |= SYN_BIT_HIGH_RATE; | |
1da177e4 LT |
445 | if (SYN_CAP_EXTENDED(priv->capabilities)) |
446 | priv->mode |= SYN_BIT_W_MODE; | |
447 | ||
448 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
449 | return -1; | |
450 | ||
7968a5dd DD |
451 | if (priv->absolute_mode && |
452 | synaptics_set_advanced_gesture_mode(psmouse)) { | |
453 | psmouse_err(psmouse, "Advanced gesture mode init failed.\n"); | |
454 | return -1; | |
455 | } | |
456 | ||
1da177e4 LT |
457 | return 0; |
458 | } | |
459 | ||
460 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
461 | { | |
462 | struct synaptics_data *priv = psmouse->private; | |
463 | ||
464 | if (rate >= 80) { | |
465 | priv->mode |= SYN_BIT_HIGH_RATE; | |
466 | psmouse->rate = 80; | |
467 | } else { | |
468 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
469 | psmouse->rate = 40; | |
470 | } | |
471 | ||
472 | synaptics_mode_cmd(psmouse, priv->mode); | |
473 | } | |
474 | ||
475 | /***************************************************************************** | |
476 | * Synaptics pass-through PS/2 port support | |
477 | ****************************************************************************/ | |
478 | static int synaptics_pt_write(struct serio *serio, unsigned char c) | |
479 | { | |
480 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
481 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ | |
482 | ||
483 | if (psmouse_sliced_command(parent, c)) | |
484 | return -1; | |
485 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) | |
486 | return -1; | |
487 | return 0; | |
488 | } | |
489 | ||
a8b3c0f5 DT |
490 | static int synaptics_pt_start(struct serio *serio) |
491 | { | |
492 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
493 | struct synaptics_data *priv = parent->private; | |
494 | ||
495 | serio_pause_rx(parent->ps2dev.serio); | |
496 | priv->pt_port = serio; | |
497 | serio_continue_rx(parent->ps2dev.serio); | |
498 | ||
499 | return 0; | |
500 | } | |
501 | ||
502 | static void synaptics_pt_stop(struct serio *serio) | |
503 | { | |
504 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
505 | struct synaptics_data *priv = parent->private; | |
506 | ||
507 | serio_pause_rx(parent->ps2dev.serio); | |
508 | priv->pt_port = NULL; | |
509 | serio_continue_rx(parent->ps2dev.serio); | |
510 | } | |
511 | ||
512 | static int synaptics_is_pt_packet(unsigned char *buf) | |
1da177e4 LT |
513 | { |
514 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
515 | } | |
516 | ||
517 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) | |
518 | { | |
519 | struct psmouse *child = serio_get_drvdata(ptport); | |
520 | ||
521 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
7d12e780 DH |
522 | serio_interrupt(ptport, packet[1], 0); |
523 | serio_interrupt(ptport, packet[4], 0); | |
524 | serio_interrupt(ptport, packet[5], 0); | |
33fdfa97 | 525 | if (child->pktsize == 4) |
7d12e780 | 526 | serio_interrupt(ptport, packet[2], 0); |
1da177e4 | 527 | } else |
7d12e780 | 528 | serio_interrupt(ptport, packet[1], 0); |
1da177e4 LT |
529 | } |
530 | ||
531 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
532 | { | |
1da177e4 | 533 | struct synaptics_data *priv = psmouse->private; |
a8b3c0f5 | 534 | struct psmouse *child = serio_get_drvdata(priv->pt_port); |
1da177e4 LT |
535 | |
536 | /* adjust the touchpad to child's choice of protocol */ | |
537 | if (child) { | |
33fdfa97 | 538 | if (child->pktsize == 4) |
1da177e4 LT |
539 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
540 | else | |
541 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
542 | ||
543 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
b5d21704 DT |
544 | psmouse_warn(psmouse, |
545 | "failed to switch guest protocol\n"); | |
1da177e4 LT |
546 | } |
547 | } | |
548 | ||
549 | static void synaptics_pt_create(struct psmouse *psmouse) | |
550 | { | |
551 | struct serio *serio; | |
552 | ||
b39787a9 | 553 | serio = kzalloc(sizeof(struct serio), GFP_KERNEL); |
1da177e4 | 554 | if (!serio) { |
b5d21704 DT |
555 | psmouse_err(psmouse, |
556 | "not enough memory for pass-through port\n"); | |
1da177e4 LT |
557 | return; |
558 | } | |
559 | ||
1da177e4 LT |
560 | serio->id.type = SERIO_PS_PSTHRU; |
561 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); | |
562 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); | |
563 | serio->write = synaptics_pt_write; | |
a8b3c0f5 DT |
564 | serio->start = synaptics_pt_start; |
565 | serio->stop = synaptics_pt_stop; | |
1da177e4 LT |
566 | serio->parent = psmouse->ps2dev.serio; |
567 | ||
568 | psmouse->pt_activate = synaptics_pt_activate; | |
569 | ||
b5d21704 DT |
570 | psmouse_info(psmouse, "serio: %s port at %s\n", |
571 | serio->name, psmouse->phys); | |
1da177e4 LT |
572 | serio_register_port(serio); |
573 | } | |
574 | ||
575 | /***************************************************************************** | |
576 | * Functions to interpret the absolute mode packets | |
577 | ****************************************************************************/ | |
578 | ||
a6ca40c1 DK |
579 | static void synaptics_mt_state_set(struct synaptics_mt_state *state, int count, |
580 | int sgm, int agm) | |
581 | { | |
582 | state->count = count; | |
583 | state->sgm = sgm; | |
584 | state->agm = agm; | |
585 | } | |
586 | ||
7afdb842 | 587 | static void synaptics_parse_agm(const unsigned char buf[], |
a6ca40c1 DK |
588 | struct synaptics_data *priv, |
589 | struct synaptics_hw_state *hw) | |
7afdb842 DK |
590 | { |
591 | struct synaptics_hw_state *agm = &priv->agm; | |
a6ca40c1 DK |
592 | int agm_packet_type; |
593 | ||
594 | agm_packet_type = (buf[5] & 0x30) >> 4; | |
595 | switch (agm_packet_type) { | |
596 | case 1: | |
597 | /* Gesture packet: (x, y, z) half resolution */ | |
598 | agm->w = hw->w; | |
599 | agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1; | |
600 | agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1; | |
601 | agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1; | |
602 | break; | |
603 | ||
604 | case 2: | |
605 | /* AGM-CONTACT packet: (count, sgm, agm) */ | |
606 | synaptics_mt_state_set(&agm->mt_state, buf[1], buf[2], buf[4]); | |
607 | break; | |
608 | ||
609 | default: | |
610 | break; | |
611 | } | |
4dc772d2 DK |
612 | |
613 | /* Record that at least one AGM has been received since last SGM */ | |
614 | priv->agm_pending = true; | |
7afdb842 DK |
615 | } |
616 | ||
fec6e525 HR |
617 | static int synaptics_parse_hw_state(const unsigned char buf[], |
618 | struct synaptics_data *priv, | |
619 | struct synaptics_hw_state *hw) | |
1da177e4 LT |
620 | { |
621 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
622 | ||
623 | if (SYN_MODEL_NEWABS(priv->model_id)) { | |
1da177e4 LT |
624 | hw->w = (((buf[0] & 0x30) >> 2) | |
625 | ((buf[0] & 0x04) >> 1) | | |
626 | ((buf[3] & 0x04) >> 2)); | |
627 | ||
628 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
629 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
630 | ||
5f57d67d TI |
631 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { |
632 | /* | |
633 | * Clickpad's button is transmitted as middle button, | |
634 | * however, since it is primary button, we will report | |
635 | * it as BTN_LEFT. | |
636 | */ | |
637 | hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
638 | ||
639 | } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
1da177e4 LT |
640 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
641 | if (hw->w == 2) | |
642 | hw->scroll = (signed char)(buf[1]); | |
643 | } | |
644 | ||
645 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
646 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
647 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
648 | } | |
649 | ||
3cdfee9e DK |
650 | if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || |
651 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) && | |
652 | hw->w == 2) { | |
a6ca40c1 | 653 | synaptics_parse_agm(buf, priv, hw); |
28d5fd86 DK |
654 | return 1; |
655 | } | |
656 | ||
657 | hw->x = (((buf[3] & 0x10) << 8) | | |
658 | ((buf[1] & 0x0f) << 8) | | |
659 | buf[4]); | |
660 | hw->y = (((buf[3] & 0x20) << 7) | | |
661 | ((buf[1] & 0xf0) << 4) | | |
662 | buf[5]); | |
663 | hw->z = buf[2]; | |
664 | ||
1da177e4 LT |
665 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && |
666 | ((buf[0] ^ buf[3]) & 0x02)) { | |
667 | switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { | |
668 | default: | |
669 | /* | |
670 | * if nExtBtn is greater than 8 it should be | |
671 | * considered invalid and treated as 0 | |
672 | */ | |
673 | break; | |
674 | case 8: | |
675 | hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; | |
676 | hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; | |
677 | case 6: | |
678 | hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; | |
679 | hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; | |
680 | case 4: | |
681 | hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; | |
682 | hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; | |
683 | case 2: | |
684 | hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; | |
685 | hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; | |
686 | } | |
687 | } | |
688 | } else { | |
689 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
690 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
691 | ||
692 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
693 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
694 | ||
695 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
696 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
697 | } | |
fec6e525 | 698 | |
824efd37 SF |
699 | /* |
700 | * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE | |
701 | * is used by some firmware to indicate a finger at the edge of | |
702 | * the touchpad whose precise position cannot be determined, so | |
703 | * convert these values to the maximum axis value. | |
704 | */ | |
c0394506 SF |
705 | if (hw->x > X_MAX_POSITIVE) |
706 | hw->x -= 1 << ABS_POS_BITS; | |
824efd37 SF |
707 | else if (hw->x == X_MAX_POSITIVE) |
708 | hw->x = XMAX; | |
709 | ||
c0394506 SF |
710 | if (hw->y > Y_MAX_POSITIVE) |
711 | hw->y -= 1 << ABS_POS_BITS; | |
824efd37 SF |
712 | else if (hw->y == Y_MAX_POSITIVE) |
713 | hw->y = YMAX; | |
c0394506 | 714 | |
fec6e525 HR |
715 | return 0; |
716 | } | |
717 | ||
bea9f0ff DK |
718 | static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot, |
719 | bool active, int x, int y) | |
fec6e525 HR |
720 | { |
721 | input_mt_slot(dev, slot); | |
722 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); | |
723 | if (active) { | |
724 | input_report_abs(dev, ABS_MT_POSITION_X, x); | |
6de58dd6 | 725 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y)); |
fec6e525 HR |
726 | } |
727 | } | |
728 | ||
729 | static void synaptics_report_semi_mt_data(struct input_dev *dev, | |
730 | const struct synaptics_hw_state *a, | |
731 | const struct synaptics_hw_state *b, | |
732 | int num_fingers) | |
733 | { | |
734 | if (num_fingers >= 2) { | |
bea9f0ff DK |
735 | synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x), |
736 | min(a->y, b->y)); | |
737 | synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x), | |
738 | max(a->y, b->y)); | |
fec6e525 | 739 | } else if (num_fingers == 1) { |
bea9f0ff DK |
740 | synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y); |
741 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 742 | } else { |
bea9f0ff DK |
743 | synaptics_report_semi_mt_slot(dev, 0, false, 0, 0); |
744 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 745 | } |
1da177e4 LT |
746 | } |
747 | ||
3cdfee9e DK |
748 | static void synaptics_report_buttons(struct psmouse *psmouse, |
749 | const struct synaptics_hw_state *hw) | |
750 | { | |
751 | struct input_dev *dev = psmouse->dev; | |
752 | struct synaptics_data *priv = psmouse->private; | |
753 | int i; | |
754 | ||
755 | input_report_key(dev, BTN_LEFT, hw->left); | |
756 | input_report_key(dev, BTN_RIGHT, hw->right); | |
757 | ||
758 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
759 | input_report_key(dev, BTN_MIDDLE, hw->middle); | |
760 | ||
761 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
762 | input_report_key(dev, BTN_FORWARD, hw->up); | |
763 | input_report_key(dev, BTN_BACK, hw->down); | |
764 | } | |
765 | ||
766 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
767 | input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i)); | |
768 | } | |
769 | ||
770 | static void synaptics_report_slot(struct input_dev *dev, int slot, | |
771 | const struct synaptics_hw_state *hw) | |
772 | { | |
773 | input_mt_slot(dev, slot); | |
774 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, (hw != NULL)); | |
775 | if (!hw) | |
776 | return; | |
777 | ||
778 | input_report_abs(dev, ABS_MT_POSITION_X, hw->x); | |
779 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(hw->y)); | |
780 | input_report_abs(dev, ABS_MT_PRESSURE, hw->z); | |
781 | } | |
782 | ||
783 | static void synaptics_report_mt_data(struct psmouse *psmouse, | |
4dc772d2 | 784 | struct synaptics_mt_state *mt_state, |
3cdfee9e DK |
785 | const struct synaptics_hw_state *sgm) |
786 | { | |
787 | struct input_dev *dev = psmouse->dev; | |
788 | struct synaptics_data *priv = psmouse->private; | |
789 | struct synaptics_hw_state *agm = &priv->agm; | |
4dc772d2 | 790 | struct synaptics_mt_state *old = &priv->mt_state; |
3cdfee9e | 791 | |
4dc772d2 | 792 | switch (mt_state->count) { |
3cdfee9e DK |
793 | case 0: |
794 | synaptics_report_slot(dev, 0, NULL); | |
795 | synaptics_report_slot(dev, 1, NULL); | |
796 | break; | |
797 | case 1: | |
4dc772d2 DK |
798 | if (mt_state->sgm == -1) { |
799 | synaptics_report_slot(dev, 0, NULL); | |
800 | synaptics_report_slot(dev, 1, NULL); | |
801 | } else if (mt_state->sgm == 0) { | |
802 | synaptics_report_slot(dev, 0, sgm); | |
803 | synaptics_report_slot(dev, 1, NULL); | |
804 | } else { | |
805 | synaptics_report_slot(dev, 0, NULL); | |
806 | synaptics_report_slot(dev, 1, sgm); | |
807 | } | |
3cdfee9e | 808 | break; |
4dc772d2 DK |
809 | default: |
810 | /* | |
811 | * If the finger slot contained in SGM is valid, and either | |
48064bdc DK |
812 | * hasn't changed, or is new, or the old SGM has now moved to |
813 | * AGM, then report SGM in MTB slot 0. | |
4dc772d2 DK |
814 | * Otherwise, empty MTB slot 0. |
815 | */ | |
816 | if (mt_state->sgm != -1 && | |
48064bdc DK |
817 | (mt_state->sgm == old->sgm || |
818 | old->sgm == -1 || mt_state->agm == old->sgm)) | |
4dc772d2 DK |
819 | synaptics_report_slot(dev, 0, sgm); |
820 | else | |
821 | synaptics_report_slot(dev, 0, NULL); | |
822 | ||
823 | /* | |
824 | * If the finger slot contained in AGM is valid, and either | |
825 | * hasn't changed, or is new, then report AGM in MTB slot 1. | |
826 | * Otherwise, empty MTB slot 1. | |
48064bdc DK |
827 | * |
828 | * However, in the case where the AGM is new, make sure that | |
829 | * that it is either the same as the old SGM, or there was no | |
830 | * SGM. | |
831 | * | |
832 | * Otherwise, if the SGM was just 1, and the new AGM is 2, then | |
833 | * the new AGM will keep the old SGM's tracking ID, which can | |
834 | * cause apparent drumroll. This happens if in the following | |
835 | * valid finger sequence: | |
836 | * | |
837 | * Action SGM AGM (MTB slot:Contact) | |
838 | * 1. Touch contact 0 (0:0) | |
839 | * 2. Touch contact 1 (0:0, 1:1) | |
840 | * 3. Lift contact 0 (1:1) | |
841 | * 4. Touch contacts 2,3 (0:2, 1:3) | |
842 | * | |
843 | * In step 4, contact 3, in AGM must not be given the same | |
844 | * tracking ID as contact 1 had in step 3. To avoid this, | |
845 | * the first agm with contact 3 is dropped and slot 1 is | |
846 | * invalidated (tracking ID = -1). | |
4dc772d2 DK |
847 | */ |
848 | if (mt_state->agm != -1 && | |
48064bdc DK |
849 | (mt_state->agm == old->agm || |
850 | (old->agm == -1 && | |
851 | (old->sgm == -1 || mt_state->agm == old->sgm)))) | |
4dc772d2 DK |
852 | synaptics_report_slot(dev, 1, agm); |
853 | else | |
854 | synaptics_report_slot(dev, 1, NULL); | |
3cdfee9e DK |
855 | break; |
856 | } | |
857 | ||
858 | /* Don't use active slot count to generate BTN_TOOL events. */ | |
859 | input_mt_report_pointer_emulation(dev, false); | |
860 | ||
861 | /* Send the number of fingers reported by touchpad itself. */ | |
4dc772d2 | 862 | input_mt_report_finger_count(dev, mt_state->count); |
3cdfee9e DK |
863 | |
864 | synaptics_report_buttons(psmouse, sgm); | |
865 | ||
866 | input_sync(dev); | |
867 | } | |
868 | ||
4dc772d2 DK |
869 | /* Handle case where mt_state->count = 0 */ |
870 | static void synaptics_image_sensor_0f(struct synaptics_data *priv, | |
871 | struct synaptics_mt_state *mt_state) | |
872 | { | |
873 | synaptics_mt_state_set(mt_state, 0, -1, -1); | |
874 | priv->mt_state_lost = false; | |
875 | } | |
876 | ||
877 | /* Handle case where mt_state->count = 1 */ | |
878 | static void synaptics_image_sensor_1f(struct synaptics_data *priv, | |
879 | struct synaptics_mt_state *mt_state) | |
880 | { | |
881 | struct synaptics_hw_state *agm = &priv->agm; | |
882 | struct synaptics_mt_state *old = &priv->mt_state; | |
883 | ||
884 | /* | |
885 | * If the last AGM was (0,0,0), and there is only one finger left, | |
886 | * then we absolutely know that SGM contains slot 0, and all other | |
887 | * fingers have been removed. | |
888 | */ | |
889 | if (priv->agm_pending && agm->z == 0) { | |
890 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
891 | priv->mt_state_lost = false; | |
892 | return; | |
893 | } | |
894 | ||
895 | switch (old->count) { | |
896 | case 0: | |
897 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
898 | break; | |
899 | case 1: | |
900 | /* | |
901 | * If mt_state_lost, then the previous transition was 3->1, | |
902 | * and SGM now contains either slot 0 or 1, but we don't know | |
903 | * which. So, we just assume that the SGM now contains slot 1. | |
904 | * | |
905 | * If pending AGM and either: | |
906 | * (a) the previous SGM slot contains slot 0, or | |
907 | * (b) there was no SGM slot | |
908 | * then, the SGM now contains slot 1 | |
909 | * | |
910 | * Case (a) happens with very rapid "drum roll" gestures, where | |
911 | * slot 0 finger is lifted and a new slot 1 finger touches | |
912 | * within one reporting interval. | |
913 | * | |
914 | * Case (b) happens if initially two or more fingers tap | |
915 | * briefly, and all but one lift before the end of the first | |
916 | * reporting interval. | |
917 | * | |
918 | * (In both these cases, slot 0 will becomes empty, so SGM | |
919 | * contains slot 1 with the new finger) | |
920 | * | |
921 | * Else, if there was no previous SGM, it now contains slot 0. | |
922 | * | |
923 | * Otherwise, SGM still contains the same slot. | |
924 | */ | |
925 | if (priv->mt_state_lost || | |
926 | (priv->agm_pending && old->sgm <= 0)) | |
927 | synaptics_mt_state_set(mt_state, 1, 1, -1); | |
928 | else if (old->sgm == -1) | |
929 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
930 | break; | |
931 | case 2: | |
932 | /* | |
933 | * If mt_state_lost, we don't know which finger SGM contains. | |
934 | * | |
935 | * So, report 1 finger, but with both slots empty. | |
936 | * We will use slot 1 on subsequent 1->1 | |
937 | */ | |
938 | if (priv->mt_state_lost) { | |
939 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
940 | break; | |
941 | } | |
942 | /* | |
943 | * Since the last AGM was NOT (0,0,0), it was the finger in | |
944 | * slot 0 that has been removed. | |
945 | * So, SGM now contains previous AGM's slot, and AGM is now | |
946 | * empty. | |
947 | */ | |
948 | synaptics_mt_state_set(mt_state, 1, old->agm, -1); | |
949 | break; | |
950 | case 3: | |
951 | /* | |
952 | * Since last AGM was not (0,0,0), we don't know which finger | |
953 | * is left. | |
954 | * | |
955 | * So, report 1 finger, but with both slots empty. | |
956 | * We will use slot 1 on subsequent 1->1 | |
957 | */ | |
958 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
959 | priv->mt_state_lost = true; | |
960 | break; | |
6b4b49fe DK |
961 | case 4: |
962 | case 5: | |
963 | /* mt_state was updated by AGM-CONTACT packet */ | |
964 | break; | |
4dc772d2 DK |
965 | } |
966 | } | |
967 | ||
968 | /* Handle case where mt_state->count = 2 */ | |
969 | static void synaptics_image_sensor_2f(struct synaptics_data *priv, | |
970 | struct synaptics_mt_state *mt_state) | |
971 | { | |
972 | struct synaptics_mt_state *old = &priv->mt_state; | |
973 | ||
974 | switch (old->count) { | |
975 | case 0: | |
976 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
977 | break; | |
978 | case 1: | |
979 | /* | |
980 | * If previous SGM contained slot 1 or higher, SGM now contains | |
981 | * slot 0 (the newly touching finger) and AGM contains SGM's | |
982 | * previous slot. | |
983 | * | |
984 | * Otherwise, SGM still contains slot 0 and AGM now contains | |
985 | * slot 1. | |
986 | */ | |
987 | if (old->sgm >= 1) | |
988 | synaptics_mt_state_set(mt_state, 2, 0, old->sgm); | |
989 | else | |
990 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
991 | break; | |
992 | case 2: | |
993 | /* | |
994 | * If mt_state_lost, SGM now contains either finger 1 or 2, but | |
995 | * we don't know which. | |
996 | * So, we just assume that the SGM contains slot 0 and AGM 1. | |
997 | */ | |
998 | if (priv->mt_state_lost) | |
999 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
1000 | /* | |
1001 | * Otherwise, use the same mt_state, since it either hasn't | |
1002 | * changed, or was updated by a recently received AGM-CONTACT | |
1003 | * packet. | |
1004 | */ | |
1005 | break; | |
1006 | case 3: | |
1007 | /* | |
1008 | * 3->2 transitions have two unsolvable problems: | |
1009 | * 1) no indication is given which finger was removed | |
1010 | * 2) no way to tell if agm packet was for finger 3 | |
1011 | * before 3->2, or finger 2 after 3->2. | |
1012 | * | |
1013 | * So, report 2 fingers, but empty all slots. | |
1014 | * We will guess slots [0,1] on subsequent 2->2. | |
1015 | */ | |
1016 | synaptics_mt_state_set(mt_state, 2, -1, -1); | |
1017 | priv->mt_state_lost = true; | |
1018 | break; | |
6b4b49fe DK |
1019 | case 4: |
1020 | case 5: | |
1021 | /* mt_state was updated by AGM-CONTACT packet */ | |
1022 | break; | |
4dc772d2 DK |
1023 | } |
1024 | } | |
1025 | ||
1026 | /* Handle case where mt_state->count = 3 */ | |
1027 | static void synaptics_image_sensor_3f(struct synaptics_data *priv, | |
1028 | struct synaptics_mt_state *mt_state) | |
1029 | { | |
1030 | struct synaptics_mt_state *old = &priv->mt_state; | |
1031 | ||
1032 | switch (old->count) { | |
1033 | case 0: | |
1034 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1035 | break; | |
1036 | case 1: | |
1037 | /* | |
1038 | * If previous SGM contained slot 2 or higher, SGM now contains | |
1039 | * slot 0 (one of the newly touching fingers) and AGM contains | |
1040 | * SGM's previous slot. | |
1041 | * | |
1042 | * Otherwise, SGM now contains slot 0 and AGM contains slot 2. | |
1043 | */ | |
1044 | if (old->sgm >= 2) | |
1045 | synaptics_mt_state_set(mt_state, 3, 0, old->sgm); | |
1046 | else | |
1047 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1048 | break; | |
1049 | case 2: | |
6b4b49fe DK |
1050 | /* |
1051 | * If the AGM previously contained slot 3 or higher, then the | |
1052 | * newly touching finger is in the lowest available slot. | |
1053 | * | |
1054 | * If SGM was previously 1 or higher, then the new SGM is | |
1055 | * now slot 0 (with a new finger), otherwise, the new finger | |
1056 | * is now in a hidden slot between 0 and AGM's slot. | |
1057 | * | |
1058 | * In all such cases, the SGM now contains slot 0, and the AGM | |
1059 | * continues to contain the same slot as before. | |
1060 | */ | |
1061 | if (old->agm >= 3) { | |
1062 | synaptics_mt_state_set(mt_state, 3, 0, old->agm); | |
1063 | break; | |
1064 | } | |
1065 | ||
4dc772d2 DK |
1066 | /* |
1067 | * After some 3->1 and all 3->2 transitions, we lose track | |
1068 | * of which slot is reported by SGM and AGM. | |
1069 | * | |
1070 | * For 2->3 in this state, report 3 fingers, but empty all | |
1071 | * slots, and we will guess (0,2) on a subsequent 0->3. | |
1072 | * | |
1073 | * To userspace, the resulting transition will look like: | |
1074 | * 2:[0,1] -> 3:[-1,-1] -> 3:[0,2] | |
1075 | */ | |
1076 | if (priv->mt_state_lost) { | |
1077 | synaptics_mt_state_set(mt_state, 3, -1, -1); | |
1078 | break; | |
1079 | } | |
1080 | ||
1081 | /* | |
1082 | * If the (SGM,AGM) really previously contained slots (0, 1), | |
1083 | * then we cannot know what slot was just reported by the AGM, | |
1084 | * because the 2->3 transition can occur either before or after | |
1085 | * the AGM packet. Thus, this most recent AGM could contain | |
1086 | * either the same old slot 1 or the new slot 2. | |
1087 | * Subsequent AGMs will be reporting slot 2. | |
1088 | * | |
1089 | * To userspace, the resulting transition will look like: | |
1090 | * 2:[0,1] -> 3:[0,-1] -> 3:[0,2] | |
1091 | */ | |
1092 | synaptics_mt_state_set(mt_state, 3, 0, -1); | |
1093 | break; | |
1094 | case 3: | |
1095 | /* | |
1096 | * If, for whatever reason, the previous agm was invalid, | |
1097 | * Assume SGM now contains slot 0, AGM now contains slot 2. | |
1098 | */ | |
1099 | if (old->agm <= 2) | |
1100 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1101 | /* | |
1102 | * mt_state either hasn't changed, or was updated by a recently | |
1103 | * received AGM-CONTACT packet. | |
1104 | */ | |
1105 | break; | |
6b4b49fe DK |
1106 | |
1107 | case 4: | |
1108 | case 5: | |
1109 | /* mt_state was updated by AGM-CONTACT packet */ | |
1110 | break; | |
4dc772d2 DK |
1111 | } |
1112 | } | |
1113 | ||
6b4b49fe DK |
1114 | /* Handle case where mt_state->count = 4, or = 5 */ |
1115 | static void synaptics_image_sensor_45f(struct synaptics_data *priv, | |
1116 | struct synaptics_mt_state *mt_state) | |
1117 | { | |
1118 | /* mt_state was updated correctly by AGM-CONTACT packet */ | |
1119 | priv->mt_state_lost = false; | |
1120 | } | |
1121 | ||
3cdfee9e DK |
1122 | static void synaptics_image_sensor_process(struct psmouse *psmouse, |
1123 | struct synaptics_hw_state *sgm) | |
1124 | { | |
4dc772d2 DK |
1125 | struct synaptics_data *priv = psmouse->private; |
1126 | struct synaptics_hw_state *agm = &priv->agm; | |
1127 | struct synaptics_mt_state mt_state; | |
3cdfee9e | 1128 | |
4dc772d2 DK |
1129 | /* Initialize using current mt_state (as updated by last agm) */ |
1130 | mt_state = agm->mt_state; | |
1131 | ||
1132 | /* | |
1133 | * Update mt_state using the new finger count and current mt_state. | |
1134 | */ | |
3cdfee9e | 1135 | if (sgm->z == 0) |
4dc772d2 | 1136 | synaptics_image_sensor_0f(priv, &mt_state); |
3cdfee9e | 1137 | else if (sgm->w >= 4) |
4dc772d2 | 1138 | synaptics_image_sensor_1f(priv, &mt_state); |
3cdfee9e | 1139 | else if (sgm->w == 0) |
4dc772d2 | 1140 | synaptics_image_sensor_2f(priv, &mt_state); |
6b4b49fe | 1141 | else if (sgm->w == 1 && mt_state.count <= 3) |
4dc772d2 | 1142 | synaptics_image_sensor_3f(priv, &mt_state); |
6b4b49fe DK |
1143 | else |
1144 | synaptics_image_sensor_45f(priv, &mt_state); | |
3cdfee9e DK |
1145 | |
1146 | /* Send resulting input events to user space */ | |
4dc772d2 DK |
1147 | synaptics_report_mt_data(psmouse, &mt_state, sgm); |
1148 | ||
1149 | /* Store updated mt_state */ | |
1150 | priv->mt_state = agm->mt_state = mt_state; | |
1151 | priv->agm_pending = false; | |
3cdfee9e DK |
1152 | } |
1153 | ||
1da177e4 LT |
1154 | /* |
1155 | * called for each full received packet from the touchpad | |
1156 | */ | |
1157 | static void synaptics_process_packet(struct psmouse *psmouse) | |
1158 | { | |
2e5b636b | 1159 | struct input_dev *dev = psmouse->dev; |
1da177e4 LT |
1160 | struct synaptics_data *priv = psmouse->private; |
1161 | struct synaptics_hw_state hw; | |
1162 | int num_fingers; | |
1163 | int finger_width; | |
1da177e4 | 1164 | |
fec6e525 HR |
1165 | if (synaptics_parse_hw_state(psmouse->packet, priv, &hw)) |
1166 | return; | |
1da177e4 | 1167 | |
3cdfee9e DK |
1168 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { |
1169 | synaptics_image_sensor_process(psmouse, &hw); | |
1170 | return; | |
1171 | } | |
1172 | ||
1da177e4 LT |
1173 | if (hw.scroll) { |
1174 | priv->scroll += hw.scroll; | |
1175 | ||
1176 | while (priv->scroll >= 4) { | |
1177 | input_report_key(dev, BTN_BACK, !hw.down); | |
1178 | input_sync(dev); | |
1179 | input_report_key(dev, BTN_BACK, hw.down); | |
1180 | input_sync(dev); | |
1181 | priv->scroll -= 4; | |
1182 | } | |
1183 | while (priv->scroll <= -4) { | |
1184 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
1185 | input_sync(dev); | |
1186 | input_report_key(dev, BTN_FORWARD, hw.up); | |
1187 | input_sync(dev); | |
1188 | priv->scroll += 4; | |
1189 | } | |
1190 | return; | |
1191 | } | |
1192 | ||
4f56ce92 | 1193 | if (hw.z > 0 && hw.x > 1) { |
1da177e4 LT |
1194 | num_fingers = 1; |
1195 | finger_width = 5; | |
1196 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
1197 | switch (hw.w) { | |
1198 | case 0 ... 1: | |
1199 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
1200 | num_fingers = hw.w + 2; | |
1201 | break; | |
1202 | case 2: | |
1203 | if (SYN_MODEL_PEN(priv->model_id)) | |
1204 | ; /* Nothing, treat a pen as a single finger */ | |
1205 | break; | |
1206 | case 4 ... 15: | |
1207 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
1208 | finger_width = hw.w; | |
1209 | break; | |
1210 | } | |
1211 | } | |
1212 | } else { | |
1213 | num_fingers = 0; | |
1214 | finger_width = 0; | |
1215 | } | |
1216 | ||
fec6e525 | 1217 | if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) |
7afdb842 DK |
1218 | synaptics_report_semi_mt_data(dev, &hw, &priv->agm, |
1219 | num_fingers); | |
fec6e525 | 1220 | |
1da177e4 LT |
1221 | /* Post events |
1222 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
1223 | * absolute -> relative conversion | |
1224 | */ | |
1225 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
1226 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
1227 | ||
4f56ce92 | 1228 | if (num_fingers > 0) { |
1da177e4 | 1229 | input_report_abs(dev, ABS_X, hw.x); |
6de58dd6 | 1230 | input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y)); |
1da177e4 LT |
1231 | } |
1232 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
1233 | ||
2a8e7710 CB |
1234 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
1235 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); | |
1236 | ||
1da177e4 | 1237 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); |
e42b6646 PH |
1238 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
1239 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); | |
1240 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); | |
1241 | } | |
1242 | ||
3cdfee9e | 1243 | synaptics_report_buttons(psmouse, &hw); |
1da177e4 LT |
1244 | |
1245 | input_sync(dev); | |
1246 | } | |
1247 | ||
b5d21704 DT |
1248 | static int synaptics_validate_byte(struct psmouse *psmouse, |
1249 | int idx, unsigned char pkt_type) | |
1da177e4 | 1250 | { |
e38de678 HD |
1251 | static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; |
1252 | static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; | |
1253 | static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; | |
1254 | static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; | |
1255 | static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; | |
b5d21704 | 1256 | const char *packet = psmouse->packet; |
1da177e4 LT |
1257 | |
1258 | if (idx < 0 || idx > 4) | |
1259 | return 0; | |
1260 | ||
1261 | switch (pkt_type) { | |
1da177e4 | 1262 | |
a62f0d27 DT |
1263 | case SYN_NEWABS: |
1264 | case SYN_NEWABS_RELAXED: | |
1265 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1266 | |
a62f0d27 DT |
1267 | case SYN_NEWABS_STRICT: |
1268 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1269 | |
a62f0d27 DT |
1270 | case SYN_OLDABS: |
1271 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
1272 | ||
1273 | default: | |
b5d21704 | 1274 | psmouse_err(psmouse, "unknown packet type %d\n", pkt_type); |
a62f0d27 | 1275 | return 0; |
1da177e4 LT |
1276 | } |
1277 | } | |
1278 | ||
1279 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) | |
1280 | { | |
1281 | int i; | |
1282 | ||
1283 | for (i = 0; i < 5; i++) | |
b5d21704 DT |
1284 | if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) { |
1285 | psmouse_info(psmouse, "using relaxed packet validation\n"); | |
1da177e4 LT |
1286 | return SYN_NEWABS_RELAXED; |
1287 | } | |
1288 | ||
1289 | return SYN_NEWABS_STRICT; | |
1290 | } | |
1291 | ||
7d12e780 | 1292 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) |
1da177e4 | 1293 | { |
1da177e4 LT |
1294 | struct synaptics_data *priv = psmouse->private; |
1295 | ||
1da177e4 LT |
1296 | if (psmouse->pktcnt >= 6) { /* Full packet received */ |
1297 | if (unlikely(priv->pkt_type == SYN_NEWABS)) | |
1298 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); | |
1299 | ||
a8b3c0f5 DT |
1300 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && |
1301 | synaptics_is_pt_packet(psmouse->packet)) { | |
1302 | if (priv->pt_port) | |
1303 | synaptics_pass_pt_packet(priv->pt_port, psmouse->packet); | |
1da177e4 LT |
1304 | } else |
1305 | synaptics_process_packet(psmouse); | |
1306 | ||
1307 | return PSMOUSE_FULL_PACKET; | |
1308 | } | |
1309 | ||
b5d21704 | 1310 | return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ? |
1da177e4 LT |
1311 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; |
1312 | } | |
1313 | ||
1314 | /***************************************************************************** | |
1315 | * Driver initialization/cleanup functions | |
1316 | ****************************************************************************/ | |
85615476 DK |
1317 | static void set_abs_position_params(struct input_dev *dev, |
1318 | struct synaptics_data *priv, int x_code, | |
1319 | int y_code) | |
1da177e4 | 1320 | { |
85615476 DK |
1321 | int x_min = priv->x_min ?: XMIN_NOMINAL; |
1322 | int x_max = priv->x_max ?: XMAX_NOMINAL; | |
1323 | int y_min = priv->y_min ?: YMIN_NOMINAL; | |
1324 | int y_max = priv->y_max ?: YMAX_NOMINAL; | |
a9f0b79e DK |
1325 | int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ? |
1326 | SYN_REDUCED_FILTER_FUZZ : 0; | |
1da177e4 | 1327 | |
85615476 DK |
1328 | input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0); |
1329 | input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0); | |
1330 | input_abs_set_res(dev, x_code, priv->x_res); | |
1331 | input_abs_set_res(dev, y_code, priv->y_res); | |
1332 | } | |
1333 | ||
43e19888 HG |
1334 | static void set_input_params(struct psmouse *psmouse, |
1335 | struct synaptics_data *priv) | |
85615476 | 1336 | { |
43e19888 | 1337 | struct input_dev *dev = psmouse->dev; |
85615476 DK |
1338 | int i; |
1339 | ||
7968a5dd | 1340 | /* Things that apply to both modes */ |
c14890a8 | 1341 | __set_bit(INPUT_PROP_POINTER, dev->propbit); |
7968a5dd DD |
1342 | __set_bit(EV_KEY, dev->evbit); |
1343 | __set_bit(BTN_LEFT, dev->keybit); | |
1344 | __set_bit(BTN_RIGHT, dev->keybit); | |
c14890a8 | 1345 | |
7968a5dd DD |
1346 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
1347 | __set_bit(BTN_MIDDLE, dev->keybit); | |
1348 | ||
1349 | if (!priv->absolute_mode) { | |
1350 | /* Relative mode */ | |
1351 | __set_bit(EV_REL, dev->evbit); | |
1352 | __set_bit(REL_X, dev->relbit); | |
1353 | __set_bit(REL_Y, dev->relbit); | |
1354 | return; | |
1355 | } | |
1356 | ||
1357 | /* Absolute mode */ | |
b7802c5c | 1358 | __set_bit(EV_ABS, dev->evbit); |
85615476 | 1359 | set_abs_position_params(dev, priv, ABS_X, ABS_Y); |
1da177e4 | 1360 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); |
2a8e7710 | 1361 | |
3cdfee9e | 1362 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { |
3cdfee9e DK |
1363 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, |
1364 | ABS_MT_POSITION_Y); | |
1365 | /* Image sensors can report per-contact pressure */ | |
1366 | input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
0b85bf78 | 1367 | input_mt_init_slots(dev, 2, INPUT_MT_POINTER); |
6b4b49fe DK |
1368 | |
1369 | /* Image sensors can signal 4 and 5 finger clicks */ | |
1370 | __set_bit(BTN_TOOL_QUADTAP, dev->keybit); | |
1371 | __set_bit(BTN_TOOL_QUINTTAP, dev->keybit); | |
3cdfee9e DK |
1372 | } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) { |
1373 | /* Non-image sensors with AGM use semi-mt */ | |
fec6e525 | 1374 | __set_bit(INPUT_PROP_SEMI_MT, dev->propbit); |
b4adbbef | 1375 | input_mt_init_slots(dev, 2, 0); |
85615476 DK |
1376 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, |
1377 | ABS_MT_POSITION_Y); | |
fec6e525 HR |
1378 | } |
1379 | ||
2a8e7710 | 1380 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
58fb0218 | 1381 | input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0); |
1da177e4 | 1382 | |
b7802c5c DT |
1383 | __set_bit(BTN_TOUCH, dev->keybit); |
1384 | __set_bit(BTN_TOOL_FINGER, dev->keybit); | |
1da177e4 | 1385 | |
e42b6646 | 1386 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
b7802c5c DT |
1387 | __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); |
1388 | __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); | |
e42b6646 PH |
1389 | } |
1390 | ||
1da177e4 LT |
1391 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || |
1392 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
b7802c5c DT |
1393 | __set_bit(BTN_FORWARD, dev->keybit); |
1394 | __set_bit(BTN_BACK, dev->keybit); | |
1da177e4 LT |
1395 | } |
1396 | ||
1397 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
b7802c5c | 1398 | __set_bit(BTN_0 + i, dev->keybit); |
1da177e4 | 1399 | |
b7802c5c DT |
1400 | __clear_bit(EV_REL, dev->evbit); |
1401 | __clear_bit(REL_X, dev->relbit); | |
1402 | __clear_bit(REL_Y, dev->relbit); | |
ec20a022 | 1403 | |
5f57d67d | 1404 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { |
c14890a8 | 1405 | __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); |
e2f61102 HG |
1406 | if (matches_pnp_id(psmouse, topbuttonpad_pnp_ids)) |
1407 | __set_bit(INPUT_PROP_TOPBUTTONPAD, dev->propbit); | |
5f57d67d TI |
1408 | /* Clickpads report only left button */ |
1409 | __clear_bit(BTN_RIGHT, dev->keybit); | |
1410 | __clear_bit(BTN_MIDDLE, dev->keybit); | |
1411 | } | |
1da177e4 LT |
1412 | } |
1413 | ||
7968a5dd DD |
1414 | static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse, |
1415 | void *data, char *buf) | |
1416 | { | |
1417 | struct synaptics_data *priv = psmouse->private; | |
1418 | ||
1419 | return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0'); | |
1420 | } | |
1421 | ||
1422 | static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse, | |
1423 | void *data, const char *buf, | |
1424 | size_t len) | |
1425 | { | |
1426 | struct synaptics_data *priv = psmouse->private; | |
1427 | unsigned int value; | |
1428 | int err; | |
1429 | ||
1430 | err = kstrtouint(buf, 10, &value); | |
1431 | if (err) | |
1432 | return err; | |
1433 | ||
1434 | if (value > 1) | |
1435 | return -EINVAL; | |
1436 | ||
1437 | if (value == priv->disable_gesture) | |
1438 | return len; | |
1439 | ||
1440 | priv->disable_gesture = value; | |
1441 | if (value) | |
1442 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
1443 | else | |
1444 | priv->mode &= ~SYN_BIT_DISABLE_GESTURE; | |
1445 | ||
1446 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
1447 | return -EIO; | |
1448 | ||
1449 | return len; | |
1450 | } | |
1451 | ||
1452 | PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL, | |
1453 | synaptics_show_disable_gesture, | |
1454 | synaptics_set_disable_gesture); | |
1455 | ||
1da177e4 LT |
1456 | static void synaptics_disconnect(struct psmouse *psmouse) |
1457 | { | |
7968a5dd DD |
1458 | struct synaptics_data *priv = psmouse->private; |
1459 | ||
1460 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1461 | device_remove_file(&psmouse->ps2dev.serio->dev, | |
1462 | &psmouse_attr_disable_gesture.dattr); | |
1463 | ||
1da177e4 | 1464 | synaptics_reset(psmouse); |
7968a5dd | 1465 | kfree(priv); |
1da177e4 LT |
1466 | psmouse->private = NULL; |
1467 | } | |
1468 | ||
1469 | static int synaptics_reconnect(struct psmouse *psmouse) | |
1470 | { | |
1471 | struct synaptics_data *priv = psmouse->private; | |
1472 | struct synaptics_data old_priv = *priv; | |
eeb06558 | 1473 | unsigned char param[2]; |
c63fe0a4 APF |
1474 | int retry = 0; |
1475 | int error; | |
1da177e4 | 1476 | |
c63fe0a4 APF |
1477 | do { |
1478 | psmouse_reset(psmouse); | |
8521478f DT |
1479 | if (retry) { |
1480 | /* | |
1481 | * On some boxes, right after resuming, the touchpad | |
1482 | * needs some time to finish initializing (I assume | |
1483 | * it needs time to calibrate) and start responding | |
1484 | * to Synaptics-specific queries, so let's wait a | |
1485 | * bit. | |
1486 | */ | |
1487 | ssleep(1); | |
1488 | } | |
eeb06558 | 1489 | ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID); |
c63fe0a4 APF |
1490 | error = synaptics_detect(psmouse, 0); |
1491 | } while (error && ++retry < 3); | |
4d368456 | 1492 | |
c63fe0a4 | 1493 | if (error) |
1da177e4 LT |
1494 | return -1; |
1495 | ||
c63fe0a4 | 1496 | if (retry > 1) |
b5d21704 | 1497 | psmouse_dbg(psmouse, "reconnected after %d tries\n", retry); |
c63fe0a4 | 1498 | |
1da177e4 | 1499 | if (synaptics_query_hardware(psmouse)) { |
b5d21704 | 1500 | psmouse_err(psmouse, "Unable to query device.\n"); |
1da177e4 LT |
1501 | return -1; |
1502 | } | |
1503 | ||
7968a5dd | 1504 | if (synaptics_set_mode(psmouse)) { |
b5d21704 | 1505 | psmouse_err(psmouse, "Unable to initialize device.\n"); |
1da177e4 LT |
1506 | return -1; |
1507 | } | |
1508 | ||
baddf589 APF |
1509 | if (old_priv.identity != priv->identity || |
1510 | old_priv.model_id != priv->model_id || | |
1511 | old_priv.capabilities != priv->capabilities || | |
1512 | old_priv.ext_cap != priv->ext_cap) { | |
b5d21704 DT |
1513 | psmouse_err(psmouse, |
1514 | "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n", | |
1515 | old_priv.identity, priv->identity, | |
1516 | old_priv.model_id, priv->model_id, | |
1517 | old_priv.capabilities, priv->capabilities, | |
1518 | old_priv.ext_cap, priv->ext_cap); | |
baddf589 APF |
1519 | return -1; |
1520 | } | |
1521 | ||
1da177e4 LT |
1522 | return 0; |
1523 | } | |
1524 | ||
7705d548 DT |
1525 | static bool impaired_toshiba_kbc; |
1526 | ||
c963156c | 1527 | static const struct dmi_system_id toshiba_dmi_table[] __initconst = { |
7705d548 | 1528 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) |
1da177e4 | 1529 | { |
9961e259 | 1530 | /* Toshiba Satellite */ |
1da177e4 LT |
1531 | .matches = { |
1532 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c | 1533 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
1da177e4 LT |
1534 | }, |
1535 | }, | |
9ba5eaaf | 1536 | { |
9961e259 | 1537 | /* Toshiba Dynabook */ |
9ba5eaaf SH |
1538 | .matches = { |
1539 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c RT |
1540 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), |
1541 | }, | |
1542 | }, | |
1543 | { | |
9961e259 | 1544 | /* Toshiba Portege M300 */ |
53a2670c RT |
1545 | .matches = { |
1546 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1547 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), | |
9ba5eaaf | 1548 | }, |
5f5eeff4 DT |
1549 | |
1550 | }, | |
1551 | { | |
9961e259 | 1552 | /* Toshiba Portege M300 */ |
5f5eeff4 DT |
1553 | .matches = { |
1554 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1555 | DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), | |
1556 | DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), | |
1557 | }, | |
1558 | ||
9ba5eaaf | 1559 | }, |
1da177e4 | 1560 | #endif |
70874867 | 1561 | { } |
7705d548 DT |
1562 | }; |
1563 | ||
ef8313bb AS |
1564 | static bool broken_olpc_ec; |
1565 | ||
c963156c | 1566 | static const struct dmi_system_id olpc_dmi_table[] __initconst = { |
ef8313bb AS |
1567 | #if defined(CONFIG_DMI) && defined(CONFIG_OLPC) |
1568 | { | |
1569 | /* OLPC XO-1 or XO-1.5 */ | |
1570 | .matches = { | |
1571 | DMI_MATCH(DMI_SYS_VENDOR, "OLPC"), | |
1572 | DMI_MATCH(DMI_PRODUCT_NAME, "XO"), | |
1573 | }, | |
1574 | }, | |
ef8313bb | 1575 | #endif |
70874867 | 1576 | { } |
ef8313bb AS |
1577 | }; |
1578 | ||
7705d548 DT |
1579 | void __init synaptics_module_init(void) |
1580 | { | |
1581 | impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); | |
ef8313bb | 1582 | broken_olpc_ec = dmi_check_system(olpc_dmi_table); |
7705d548 | 1583 | } |
1da177e4 | 1584 | |
7968a5dd | 1585 | static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) |
1da177e4 LT |
1586 | { |
1587 | struct synaptics_data *priv; | |
7968a5dd | 1588 | int err = -1; |
1da177e4 | 1589 | |
ef8313bb | 1590 | /* |
83551c01 DD |
1591 | * The OLPC XO has issues with Synaptics' absolute mode; the constant |
1592 | * packet spew overloads the EC such that key presses on the keyboard | |
1593 | * are missed. Given that, don't even attempt to use Absolute mode. | |
1594 | * Relative mode seems to work just fine. | |
ef8313bb | 1595 | */ |
83551c01 | 1596 | if (absolute_mode && broken_olpc_ec) { |
b5d21704 DT |
1597 | psmouse_info(psmouse, |
1598 | "OLPC XO detected, not enabling Synaptics protocol.\n"); | |
ef8313bb AS |
1599 | return -ENODEV; |
1600 | } | |
1601 | ||
b39787a9 | 1602 | psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); |
1da177e4 | 1603 | if (!priv) |
6792cbbb | 1604 | return -ENOMEM; |
1da177e4 | 1605 | |
4d368456 AW |
1606 | psmouse_reset(psmouse); |
1607 | ||
1da177e4 | 1608 | if (synaptics_query_hardware(psmouse)) { |
b5d21704 | 1609 | psmouse_err(psmouse, "Unable to query device.\n"); |
1da177e4 LT |
1610 | goto init_fail; |
1611 | } | |
1612 | ||
7968a5dd DD |
1613 | priv->absolute_mode = absolute_mode; |
1614 | if (SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1615 | priv->disable_gesture = true; | |
1da177e4 | 1616 | |
7968a5dd DD |
1617 | if (synaptics_set_mode(psmouse)) { |
1618 | psmouse_err(psmouse, "Unable to initialize device.\n"); | |
fec6e525 HR |
1619 | goto init_fail; |
1620 | } | |
1621 | ||
1da177e4 LT |
1622 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; |
1623 | ||
b5d21704 | 1624 | psmouse_info(psmouse, |
c6bd9d46 | 1625 | "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n", |
b5d21704 DT |
1626 | SYN_ID_MODEL(priv->identity), |
1627 | SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), | |
1628 | priv->model_id, | |
c6bd9d46 DK |
1629 | priv->capabilities, priv->ext_cap, priv->ext_cap_0c, |
1630 | priv->board_id, priv->firmware_id); | |
409b7506 | 1631 | |
43e19888 | 1632 | set_input_params(psmouse, priv); |
1da177e4 | 1633 | |
887cc127 DT |
1634 | /* |
1635 | * Encode touchpad model so that it can be used to set | |
1636 | * input device->id.version and be visible to userspace. | |
1637 | * Because version is __u16 we have to drop something. | |
1638 | * Hardware info bits seem to be good candidates as they | |
1639 | * are documented to be for Synaptics corp. internal use. | |
1640 | */ | |
1641 | psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | | |
1642 | (priv->model_id & 0x000000ff); | |
1643 | ||
7968a5dd DD |
1644 | if (absolute_mode) { |
1645 | psmouse->protocol_handler = synaptics_process_byte; | |
1646 | psmouse->pktsize = 6; | |
1647 | } else { | |
1648 | /* Relative mode follows standard PS/2 mouse protocol */ | |
1649 | psmouse->protocol_handler = psmouse_process_byte; | |
1650 | psmouse->pktsize = 3; | |
1651 | } | |
1652 | ||
1da177e4 LT |
1653 | psmouse->set_rate = synaptics_set_rate; |
1654 | psmouse->disconnect = synaptics_disconnect; | |
1655 | psmouse->reconnect = synaptics_reconnect; | |
a1cec061 | 1656 | psmouse->cleanup = synaptics_reset; |
f0d5c6f4 DT |
1657 | /* Synaptics can usually stay in sync without extra help */ |
1658 | psmouse->resync_time = 0; | |
1da177e4 LT |
1659 | |
1660 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
1661 | synaptics_pt_create(psmouse); | |
1662 | ||
1da177e4 LT |
1663 | /* |
1664 | * Toshiba's KBC seems to have trouble handling data from | |
7ee99161 AS |
1665 | * Synaptics at full rate. Switch to a lower rate (roughly |
1666 | * the same rate as a standard PS/2 mouse). | |
1da177e4 | 1667 | */ |
7705d548 | 1668 | if (psmouse->rate >= 80 && impaired_toshiba_kbc) { |
b5d21704 DT |
1669 | psmouse_info(psmouse, |
1670 | "Toshiba %s detected, limiting rate to 40pps.\n", | |
1671 | dmi_get_system_info(DMI_PRODUCT_NAME)); | |
1da177e4 LT |
1672 | psmouse->rate = 40; |
1673 | } | |
1da177e4 | 1674 | |
7968a5dd DD |
1675 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) { |
1676 | err = device_create_file(&psmouse->ps2dev.serio->dev, | |
1677 | &psmouse_attr_disable_gesture.dattr); | |
1678 | if (err) { | |
1679 | psmouse_err(psmouse, | |
1680 | "Failed to create disable_gesture attribute (%d)", | |
1681 | err); | |
1682 | goto init_fail; | |
1683 | } | |
1684 | } | |
1685 | ||
1da177e4 LT |
1686 | return 0; |
1687 | ||
1688 | init_fail: | |
1689 | kfree(priv); | |
7968a5dd DD |
1690 | return err; |
1691 | } | |
1692 | ||
1693 | int synaptics_init(struct psmouse *psmouse) | |
1694 | { | |
1695 | return __synaptics_init(psmouse, true); | |
1696 | } | |
1697 | ||
1698 | int synaptics_init_relative(struct psmouse *psmouse) | |
1699 | { | |
1700 | return __synaptics_init(psmouse, false); | |
1da177e4 LT |
1701 | } |
1702 | ||
e4e6efd2 DD |
1703 | bool synaptics_supported(void) |
1704 | { | |
1705 | return true; | |
1706 | } | |
1707 | ||
55e3d922 AS |
1708 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
1709 | ||
7705d548 DT |
1710 | void __init synaptics_module_init(void) |
1711 | { | |
1712 | } | |
1713 | ||
55e3d922 AS |
1714 | int synaptics_init(struct psmouse *psmouse) |
1715 | { | |
1716 | return -ENOSYS; | |
1717 | } | |
1718 | ||
e4e6efd2 DD |
1719 | bool synaptics_supported(void) |
1720 | { | |
1721 | return false; | |
1722 | } | |
1723 | ||
55e3d922 | 1724 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ |