Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | /* |
2 | * Synaptics TouchPad PS/2 mouse driver | |
3 | * | |
4 | * 2003 Dmitry Torokhov <dtor@mail.ru> | |
5 | * Added support for pass-through port. Special thanks to Peter Berg Larsen | |
6 | * for explaining various Synaptics quirks. | |
7 | * | |
8 | * 2003 Peter Osterlund <petero2@telia.com> | |
9 | * Ported to 2.5 input device infrastructure. | |
10 | * | |
11 | * Copyright (C) 2001 Stefan Gmeiner <riddlebox@freesurf.ch> | |
12 | * start merging tpconfig and gpm code to a xfree-input module | |
13 | * adding some changes and extensions (ex. 3rd and 4th button) | |
14 | * | |
15 | * Copyright (c) 1997 C. Scott Ananian <cananian@alumni.priceton.edu> | |
16 | * Copyright (c) 1998-2000 Bruce Kalk <kall@compass.com> | |
17 | * code for the special synaptics commands (from the tpconfig-source) | |
18 | * | |
19 | * This program is free software; you can redistribute it and/or modify it | |
20 | * under the terms of the GNU General Public License version 2 as published by | |
21 | * the Free Software Foundation. | |
22 | * | |
23 | * Trademarks are the property of their respective owners. | |
24 | */ | |
25 | ||
26 | #include <linux/module.h> | |
8521478f | 27 | #include <linux/delay.h> |
7705d548 | 28 | #include <linux/dmi.h> |
fec6e525 | 29 | #include <linux/input/mt.h> |
1da177e4 LT |
30 | #include <linux/serio.h> |
31 | #include <linux/libps2.h> | |
5a0e3ad6 | 32 | #include <linux/slab.h> |
1da177e4 LT |
33 | #include "psmouse.h" |
34 | #include "synaptics.h" | |
35 | ||
36 | /* | |
37 | * The x/y limits are taken from the Synaptics TouchPad interfacing Guide, | |
38 | * section 2.3.2, which says that they should be valid regardless of the | |
39 | * actual size of the sensor. | |
83ba9ea8 DT |
40 | * Note that newer firmware allows querying device for maximum useable |
41 | * coordinates. | |
1da177e4 | 42 | */ |
c0394506 SF |
43 | #define XMIN 0 |
44 | #define XMAX 6143 | |
45 | #define YMIN 0 | |
46 | #define YMAX 6143 | |
1da177e4 LT |
47 | #define XMIN_NOMINAL 1472 |
48 | #define XMAX_NOMINAL 5472 | |
49 | #define YMIN_NOMINAL 1408 | |
50 | #define YMAX_NOMINAL 4448 | |
51 | ||
c0394506 SF |
52 | /* Size in bits of absolute position values reported by the hardware */ |
53 | #define ABS_POS_BITS 13 | |
54 | ||
55 | /* | |
824efd37 SF |
56 | * These values should represent the absolute maximum value that will |
57 | * be reported for a positive position value. Some Synaptics firmware | |
58 | * uses this value to indicate a finger near the edge of the touchpad | |
59 | * whose precise position cannot be determined. | |
60 | * | |
61 | * At least one touchpad is known to report positions in excess of this | |
62 | * value which are actually negative values truncated to the 13-bit | |
63 | * reporting range. These values have never been observed to be lower | |
64 | * than 8184 (i.e. -8), so we treat all values greater than 8176 as | |
65 | * negative and any other value as positive. | |
c0394506 | 66 | */ |
824efd37 SF |
67 | #define X_MAX_POSITIVE 8176 |
68 | #define Y_MAX_POSITIVE 8176 | |
55e3d922 | 69 | |
1da177e4 | 70 | /***************************************************************************** |
55e3d922 | 71 | * Stuff we need even when we do not want native Synaptics support |
1da177e4 LT |
72 | ****************************************************************************/ |
73 | ||
74 | /* | |
55e3d922 | 75 | * Set the synaptics touchpad mode byte by special commands |
1da177e4 | 76 | */ |
55e3d922 | 77 | static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode) |
1da177e4 | 78 | { |
55e3d922 AS |
79 | unsigned char param[1]; |
80 | ||
81 | if (psmouse_sliced_command(psmouse, mode)) | |
1da177e4 | 82 | return -1; |
55e3d922 AS |
83 | param[0] = SYN_PS_SET_MODE2; |
84 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE)) | |
1da177e4 LT |
85 | return -1; |
86 | return 0; | |
87 | } | |
88 | ||
b7802c5c | 89 | int synaptics_detect(struct psmouse *psmouse, bool set_properties) |
55e3d922 AS |
90 | { |
91 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
92 | unsigned char param[4]; | |
93 | ||
94 | param[0] = 0; | |
95 | ||
96 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
97 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
98 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
99 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
100 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); | |
101 | ||
102 | if (param[1] != 0x47) | |
103 | return -ENODEV; | |
104 | ||
105 | if (set_properties) { | |
106 | psmouse->vendor = "Synaptics"; | |
107 | psmouse->name = "TouchPad"; | |
108 | } | |
109 | ||
110 | return 0; | |
111 | } | |
112 | ||
113 | void synaptics_reset(struct psmouse *psmouse) | |
114 | { | |
115 | /* reset touchpad back to relative mode, gestures enabled */ | |
116 | synaptics_mode_cmd(psmouse, 0); | |
117 | } | |
118 | ||
119 | #ifdef CONFIG_MOUSE_PS2_SYNAPTICS | |
120 | ||
121 | /***************************************************************************** | |
122 | * Synaptics communications functions | |
123 | ****************************************************************************/ | |
124 | ||
1a49a0a0 JD |
125 | /* |
126 | * Synaptics touchpads report the y coordinate from bottom to top, which is | |
127 | * opposite from what userspace expects. | |
128 | * This function is used to invert y before reporting. | |
129 | */ | |
130 | static int synaptics_invert_y(int y) | |
131 | { | |
132 | return YMAX_NOMINAL + YMIN_NOMINAL - y; | |
133 | } | |
134 | ||
1da177e4 | 135 | /* |
55e3d922 | 136 | * Send a command to the synpatics touchpad by special commands |
1da177e4 | 137 | */ |
55e3d922 | 138 | static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) |
1da177e4 | 139 | { |
55e3d922 | 140 | if (psmouse_sliced_command(psmouse, c)) |
1da177e4 | 141 | return -1; |
55e3d922 | 142 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) |
1da177e4 LT |
143 | return -1; |
144 | return 0; | |
145 | } | |
146 | ||
147 | /* | |
148 | * Read the model-id bytes from the touchpad | |
149 | * see also SYN_MODEL_* macros | |
150 | */ | |
151 | static int synaptics_model_id(struct psmouse *psmouse) | |
152 | { | |
153 | struct synaptics_data *priv = psmouse->private; | |
154 | unsigned char mi[3]; | |
155 | ||
156 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) | |
157 | return -1; | |
158 | priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; | |
159 | return 0; | |
160 | } | |
161 | ||
c6bd9d46 DK |
162 | /* |
163 | * Read the board id from the touchpad | |
164 | * The board id is encoded in the "QUERY MODES" response | |
165 | */ | |
166 | static int synaptics_board_id(struct psmouse *psmouse) | |
167 | { | |
168 | struct synaptics_data *priv = psmouse->private; | |
169 | unsigned char bid[3]; | |
170 | ||
171 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODES, bid)) | |
172 | return -1; | |
173 | priv->board_id = ((bid[0] & 0xfc) << 6) | bid[1]; | |
174 | return 0; | |
175 | } | |
176 | ||
177 | /* | |
178 | * Read the firmware id from the touchpad | |
179 | */ | |
180 | static int synaptics_firmware_id(struct psmouse *psmouse) | |
181 | { | |
182 | struct synaptics_data *priv = psmouse->private; | |
183 | unsigned char fwid[3]; | |
184 | ||
185 | if (synaptics_send_cmd(psmouse, SYN_QUE_FIRMWARE_ID, fwid)) | |
186 | return -1; | |
187 | priv->firmware_id = (fwid[0] << 16) | (fwid[1] << 8) | fwid[2]; | |
188 | return 0; | |
189 | } | |
190 | ||
1da177e4 LT |
191 | /* |
192 | * Read the capability-bits from the touchpad | |
193 | * see also the SYN_CAP_* macros | |
194 | */ | |
195 | static int synaptics_capability(struct psmouse *psmouse) | |
196 | { | |
197 | struct synaptics_data *priv = psmouse->private; | |
198 | unsigned char cap[3]; | |
199 | ||
200 | if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) | |
201 | return -1; | |
202 | priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
5f57d67d TI |
203 | priv->ext_cap = priv->ext_cap_0c = 0; |
204 | ||
3619b8fe DT |
205 | /* |
206 | * Older firmwares had submodel ID fixed to 0x47 | |
207 | */ | |
208 | if (SYN_ID_FULL(priv->identity) < 0x705 && | |
209 | SYN_CAP_SUBMODEL_ID(priv->capabilities) != 0x47) { | |
1da177e4 | 210 | return -1; |
3619b8fe | 211 | } |
1da177e4 LT |
212 | |
213 | /* | |
214 | * Unless capExtended is set the rest of the flags should be ignored | |
215 | */ | |
216 | if (!SYN_CAP_EXTENDED(priv->capabilities)) | |
217 | priv->capabilities = 0; | |
218 | ||
219 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { | |
220 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { | |
b5d21704 DT |
221 | psmouse_warn(psmouse, |
222 | "device claims to have extended capabilities, but I'm not able to read them.\n"); | |
1da177e4 LT |
223 | } else { |
224 | priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
225 | ||
226 | /* | |
227 | * if nExtBtn is greater than 8 it should be considered | |
228 | * invalid and treated as 0 | |
229 | */ | |
230 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) | |
231 | priv->ext_cap &= 0xff0fff; | |
232 | } | |
233 | } | |
5f57d67d TI |
234 | |
235 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) { | |
236 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) { | |
b5d21704 DT |
237 | psmouse_warn(psmouse, |
238 | "device claims to have extended capability 0x0c, but I'm not able to read it.\n"); | |
5f57d67d TI |
239 | } else { |
240 | priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
241 | } | |
242 | } | |
243 | ||
1da177e4 LT |
244 | return 0; |
245 | } | |
246 | ||
247 | /* | |
248 | * Identify Touchpad | |
249 | * See also the SYN_ID_* macros | |
250 | */ | |
251 | static int synaptics_identify(struct psmouse *psmouse) | |
252 | { | |
253 | struct synaptics_data *priv = psmouse->private; | |
254 | unsigned char id[3]; | |
255 | ||
256 | if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) | |
257 | return -1; | |
258 | priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; | |
259 | if (SYN_ID_IS_SYNAPTICS(priv->identity)) | |
260 | return 0; | |
261 | return -1; | |
262 | } | |
263 | ||
ec20a022 | 264 | /* |
83ba9ea8 | 265 | * Read touchpad resolution and maximum reported coordinates |
ec20a022 TS |
266 | * Resolution is left zero if touchpad does not support the query |
267 | */ | |
421e08c4 BT |
268 | |
269 | static const int *quirk_min_max; | |
270 | ||
ec20a022 TS |
271 | static int synaptics_resolution(struct psmouse *psmouse) |
272 | { | |
273 | struct synaptics_data *priv = psmouse->private; | |
a66413fb | 274 | unsigned char resp[3]; |
ec20a022 | 275 | |
421e08c4 BT |
276 | if (quirk_min_max) { |
277 | priv->x_min = quirk_min_max[0]; | |
278 | priv->x_max = quirk_min_max[1]; | |
279 | priv->y_min = quirk_min_max[2]; | |
280 | priv->y_max = quirk_min_max[3]; | |
281 | return 0; | |
282 | } | |
283 | ||
ec20a022 | 284 | if (SYN_ID_MAJOR(priv->identity) < 4) |
bbddd199 | 285 | return 0; |
ec20a022 | 286 | |
a66413fb DT |
287 | if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, resp) == 0) { |
288 | if (resp[0] != 0 && (resp[1] & 0x80) && resp[2] != 0) { | |
289 | priv->x_res = resp[0]; /* x resolution in units/mm */ | |
290 | priv->y_res = resp[2]; /* y resolution in units/mm */ | |
83ba9ea8 DT |
291 | } |
292 | } | |
ec20a022 | 293 | |
83ba9ea8 DT |
294 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && |
295 | SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { | |
a66413fb | 296 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MAX_COORDS, resp)) { |
b5d21704 DT |
297 | psmouse_warn(psmouse, |
298 | "device claims to have max coordinates query, but I'm not able to read it.\n"); | |
a66413fb DT |
299 | } else { |
300 | priv->x_max = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); | |
301 | priv->y_max = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
302 | } | |
303 | } | |
304 | ||
305 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 7 && | |
306 | SYN_CAP_MIN_DIMENSIONS(priv->ext_cap_0c)) { | |
307 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_MIN_COORDS, resp)) { | |
b5d21704 DT |
308 | psmouse_warn(psmouse, |
309 | "device claims to have min coordinates query, but I'm not able to read it.\n"); | |
83ba9ea8 | 310 | } else { |
a66413fb DT |
311 | priv->x_min = (resp[0] << 5) | ((resp[1] & 0x0f) << 1); |
312 | priv->y_min = (resp[2] << 5) | ((resp[1] & 0xf0) >> 3); | |
83ba9ea8 | 313 | } |
ec20a022 TS |
314 | } |
315 | ||
316 | return 0; | |
317 | } | |
318 | ||
1da177e4 LT |
319 | static int synaptics_query_hardware(struct psmouse *psmouse) |
320 | { | |
1da177e4 LT |
321 | if (synaptics_identify(psmouse)) |
322 | return -1; | |
323 | if (synaptics_model_id(psmouse)) | |
324 | return -1; | |
c6bd9d46 DK |
325 | if (synaptics_firmware_id(psmouse)) |
326 | return -1; | |
327 | if (synaptics_board_id(psmouse)) | |
328 | return -1; | |
1da177e4 LT |
329 | if (synaptics_capability(psmouse)) |
330 | return -1; | |
ec20a022 TS |
331 | if (synaptics_resolution(psmouse)) |
332 | return -1; | |
1da177e4 LT |
333 | |
334 | return 0; | |
335 | } | |
336 | ||
7968a5dd DD |
337 | static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse) |
338 | { | |
339 | static unsigned char param = 0xc8; | |
340 | struct synaptics_data *priv = psmouse->private; | |
341 | ||
899c612d BH |
342 | if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || |
343 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c))) | |
7968a5dd DD |
344 | return 0; |
345 | ||
346 | if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL)) | |
347 | return -1; | |
348 | ||
349 | if (ps2_command(&psmouse->ps2dev, ¶m, PSMOUSE_CMD_SETRATE)) | |
350 | return -1; | |
351 | ||
352 | /* Advanced gesture mode also sends multi finger data */ | |
353 | priv->capabilities |= BIT(1); | |
354 | ||
355 | return 0; | |
356 | } | |
357 | ||
358 | static int synaptics_set_mode(struct psmouse *psmouse) | |
1da177e4 LT |
359 | { |
360 | struct synaptics_data *priv = psmouse->private; | |
361 | ||
7968a5dd DD |
362 | priv->mode = 0; |
363 | if (priv->absolute_mode) | |
364 | priv->mode |= SYN_BIT_ABSOLUTE_MODE; | |
365 | if (priv->disable_gesture) | |
1da177e4 | 366 | priv->mode |= SYN_BIT_DISABLE_GESTURE; |
7968a5dd DD |
367 | if (psmouse->rate >= 80) |
368 | priv->mode |= SYN_BIT_HIGH_RATE; | |
1da177e4 LT |
369 | if (SYN_CAP_EXTENDED(priv->capabilities)) |
370 | priv->mode |= SYN_BIT_W_MODE; | |
371 | ||
372 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
373 | return -1; | |
374 | ||
7968a5dd DD |
375 | if (priv->absolute_mode && |
376 | synaptics_set_advanced_gesture_mode(psmouse)) { | |
377 | psmouse_err(psmouse, "Advanced gesture mode init failed.\n"); | |
378 | return -1; | |
379 | } | |
380 | ||
1da177e4 LT |
381 | return 0; |
382 | } | |
383 | ||
384 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
385 | { | |
386 | struct synaptics_data *priv = psmouse->private; | |
387 | ||
388 | if (rate >= 80) { | |
389 | priv->mode |= SYN_BIT_HIGH_RATE; | |
390 | psmouse->rate = 80; | |
391 | } else { | |
392 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
393 | psmouse->rate = 40; | |
394 | } | |
395 | ||
396 | synaptics_mode_cmd(psmouse, priv->mode); | |
397 | } | |
398 | ||
399 | /***************************************************************************** | |
400 | * Synaptics pass-through PS/2 port support | |
401 | ****************************************************************************/ | |
402 | static int synaptics_pt_write(struct serio *serio, unsigned char c) | |
403 | { | |
404 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
405 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ | |
406 | ||
407 | if (psmouse_sliced_command(parent, c)) | |
408 | return -1; | |
409 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) | |
410 | return -1; | |
411 | return 0; | |
412 | } | |
413 | ||
a8b3c0f5 DT |
414 | static int synaptics_pt_start(struct serio *serio) |
415 | { | |
416 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
417 | struct synaptics_data *priv = parent->private; | |
418 | ||
419 | serio_pause_rx(parent->ps2dev.serio); | |
420 | priv->pt_port = serio; | |
421 | serio_continue_rx(parent->ps2dev.serio); | |
422 | ||
423 | return 0; | |
424 | } | |
425 | ||
426 | static void synaptics_pt_stop(struct serio *serio) | |
427 | { | |
428 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
429 | struct synaptics_data *priv = parent->private; | |
430 | ||
431 | serio_pause_rx(parent->ps2dev.serio); | |
432 | priv->pt_port = NULL; | |
433 | serio_continue_rx(parent->ps2dev.serio); | |
434 | } | |
435 | ||
436 | static int synaptics_is_pt_packet(unsigned char *buf) | |
1da177e4 LT |
437 | { |
438 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
439 | } | |
440 | ||
441 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) | |
442 | { | |
443 | struct psmouse *child = serio_get_drvdata(ptport); | |
444 | ||
445 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
7d12e780 DH |
446 | serio_interrupt(ptport, packet[1], 0); |
447 | serio_interrupt(ptport, packet[4], 0); | |
448 | serio_interrupt(ptport, packet[5], 0); | |
33fdfa97 | 449 | if (child->pktsize == 4) |
7d12e780 | 450 | serio_interrupt(ptport, packet[2], 0); |
1da177e4 | 451 | } else |
7d12e780 | 452 | serio_interrupt(ptport, packet[1], 0); |
1da177e4 LT |
453 | } |
454 | ||
455 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
456 | { | |
1da177e4 | 457 | struct synaptics_data *priv = psmouse->private; |
a8b3c0f5 | 458 | struct psmouse *child = serio_get_drvdata(priv->pt_port); |
1da177e4 LT |
459 | |
460 | /* adjust the touchpad to child's choice of protocol */ | |
461 | if (child) { | |
33fdfa97 | 462 | if (child->pktsize == 4) |
1da177e4 LT |
463 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
464 | else | |
465 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
466 | ||
467 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
b5d21704 DT |
468 | psmouse_warn(psmouse, |
469 | "failed to switch guest protocol\n"); | |
1da177e4 LT |
470 | } |
471 | } | |
472 | ||
473 | static void synaptics_pt_create(struct psmouse *psmouse) | |
474 | { | |
475 | struct serio *serio; | |
476 | ||
b39787a9 | 477 | serio = kzalloc(sizeof(struct serio), GFP_KERNEL); |
1da177e4 | 478 | if (!serio) { |
b5d21704 DT |
479 | psmouse_err(psmouse, |
480 | "not enough memory for pass-through port\n"); | |
1da177e4 LT |
481 | return; |
482 | } | |
483 | ||
1da177e4 LT |
484 | serio->id.type = SERIO_PS_PSTHRU; |
485 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); | |
486 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); | |
487 | serio->write = synaptics_pt_write; | |
a8b3c0f5 DT |
488 | serio->start = synaptics_pt_start; |
489 | serio->stop = synaptics_pt_stop; | |
1da177e4 LT |
490 | serio->parent = psmouse->ps2dev.serio; |
491 | ||
492 | psmouse->pt_activate = synaptics_pt_activate; | |
493 | ||
b5d21704 DT |
494 | psmouse_info(psmouse, "serio: %s port at %s\n", |
495 | serio->name, psmouse->phys); | |
1da177e4 LT |
496 | serio_register_port(serio); |
497 | } | |
498 | ||
499 | /***************************************************************************** | |
500 | * Functions to interpret the absolute mode packets | |
501 | ****************************************************************************/ | |
502 | ||
a6ca40c1 DK |
503 | static void synaptics_mt_state_set(struct synaptics_mt_state *state, int count, |
504 | int sgm, int agm) | |
505 | { | |
506 | state->count = count; | |
507 | state->sgm = sgm; | |
508 | state->agm = agm; | |
509 | } | |
510 | ||
7afdb842 | 511 | static void synaptics_parse_agm(const unsigned char buf[], |
a6ca40c1 DK |
512 | struct synaptics_data *priv, |
513 | struct synaptics_hw_state *hw) | |
7afdb842 DK |
514 | { |
515 | struct synaptics_hw_state *agm = &priv->agm; | |
a6ca40c1 DK |
516 | int agm_packet_type; |
517 | ||
518 | agm_packet_type = (buf[5] & 0x30) >> 4; | |
519 | switch (agm_packet_type) { | |
520 | case 1: | |
521 | /* Gesture packet: (x, y, z) half resolution */ | |
522 | agm->w = hw->w; | |
523 | agm->x = (((buf[4] & 0x0f) << 8) | buf[1]) << 1; | |
524 | agm->y = (((buf[4] & 0xf0) << 4) | buf[2]) << 1; | |
525 | agm->z = ((buf[3] & 0x30) | (buf[5] & 0x0f)) << 1; | |
526 | break; | |
527 | ||
528 | case 2: | |
529 | /* AGM-CONTACT packet: (count, sgm, agm) */ | |
530 | synaptics_mt_state_set(&agm->mt_state, buf[1], buf[2], buf[4]); | |
531 | break; | |
532 | ||
533 | default: | |
534 | break; | |
535 | } | |
4dc772d2 DK |
536 | |
537 | /* Record that at least one AGM has been received since last SGM */ | |
538 | priv->agm_pending = true; | |
7afdb842 DK |
539 | } |
540 | ||
fec6e525 HR |
541 | static int synaptics_parse_hw_state(const unsigned char buf[], |
542 | struct synaptics_data *priv, | |
543 | struct synaptics_hw_state *hw) | |
1da177e4 LT |
544 | { |
545 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
546 | ||
547 | if (SYN_MODEL_NEWABS(priv->model_id)) { | |
1da177e4 LT |
548 | hw->w = (((buf[0] & 0x30) >> 2) | |
549 | ((buf[0] & 0x04) >> 1) | | |
550 | ((buf[3] & 0x04) >> 2)); | |
551 | ||
552 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
553 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
554 | ||
5f57d67d TI |
555 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { |
556 | /* | |
557 | * Clickpad's button is transmitted as middle button, | |
558 | * however, since it is primary button, we will report | |
559 | * it as BTN_LEFT. | |
560 | */ | |
561 | hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
562 | ||
563 | } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
1da177e4 LT |
564 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
565 | if (hw->w == 2) | |
566 | hw->scroll = (signed char)(buf[1]); | |
567 | } | |
568 | ||
569 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
570 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
571 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
572 | } | |
573 | ||
3cdfee9e DK |
574 | if ((SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) || |
575 | SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) && | |
576 | hw->w == 2) { | |
a6ca40c1 | 577 | synaptics_parse_agm(buf, priv, hw); |
28d5fd86 DK |
578 | return 1; |
579 | } | |
580 | ||
581 | hw->x = (((buf[3] & 0x10) << 8) | | |
582 | ((buf[1] & 0x0f) << 8) | | |
583 | buf[4]); | |
584 | hw->y = (((buf[3] & 0x20) << 7) | | |
585 | ((buf[1] & 0xf0) << 4) | | |
586 | buf[5]); | |
587 | hw->z = buf[2]; | |
588 | ||
1da177e4 LT |
589 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && |
590 | ((buf[0] ^ buf[3]) & 0x02)) { | |
591 | switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { | |
592 | default: | |
593 | /* | |
594 | * if nExtBtn is greater than 8 it should be | |
595 | * considered invalid and treated as 0 | |
596 | */ | |
597 | break; | |
598 | case 8: | |
599 | hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; | |
600 | hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; | |
601 | case 6: | |
602 | hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; | |
603 | hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; | |
604 | case 4: | |
605 | hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; | |
606 | hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; | |
607 | case 2: | |
608 | hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; | |
609 | hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; | |
610 | } | |
611 | } | |
612 | } else { | |
613 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
614 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
615 | ||
616 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
617 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
618 | ||
619 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
620 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
621 | } | |
fec6e525 | 622 | |
824efd37 SF |
623 | /* |
624 | * Convert wrap-around values to negative. (X|Y)_MAX_POSITIVE | |
625 | * is used by some firmware to indicate a finger at the edge of | |
626 | * the touchpad whose precise position cannot be determined, so | |
627 | * convert these values to the maximum axis value. | |
628 | */ | |
c0394506 SF |
629 | if (hw->x > X_MAX_POSITIVE) |
630 | hw->x -= 1 << ABS_POS_BITS; | |
824efd37 SF |
631 | else if (hw->x == X_MAX_POSITIVE) |
632 | hw->x = XMAX; | |
633 | ||
c0394506 SF |
634 | if (hw->y > Y_MAX_POSITIVE) |
635 | hw->y -= 1 << ABS_POS_BITS; | |
824efd37 SF |
636 | else if (hw->y == Y_MAX_POSITIVE) |
637 | hw->y = YMAX; | |
c0394506 | 638 | |
fec6e525 HR |
639 | return 0; |
640 | } | |
641 | ||
bea9f0ff DK |
642 | static void synaptics_report_semi_mt_slot(struct input_dev *dev, int slot, |
643 | bool active, int x, int y) | |
fec6e525 HR |
644 | { |
645 | input_mt_slot(dev, slot); | |
646 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, active); | |
647 | if (active) { | |
648 | input_report_abs(dev, ABS_MT_POSITION_X, x); | |
6de58dd6 | 649 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(y)); |
fec6e525 HR |
650 | } |
651 | } | |
652 | ||
653 | static void synaptics_report_semi_mt_data(struct input_dev *dev, | |
654 | const struct synaptics_hw_state *a, | |
655 | const struct synaptics_hw_state *b, | |
656 | int num_fingers) | |
657 | { | |
658 | if (num_fingers >= 2) { | |
bea9f0ff DK |
659 | synaptics_report_semi_mt_slot(dev, 0, true, min(a->x, b->x), |
660 | min(a->y, b->y)); | |
661 | synaptics_report_semi_mt_slot(dev, 1, true, max(a->x, b->x), | |
662 | max(a->y, b->y)); | |
fec6e525 | 663 | } else if (num_fingers == 1) { |
bea9f0ff DK |
664 | synaptics_report_semi_mt_slot(dev, 0, true, a->x, a->y); |
665 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 666 | } else { |
bea9f0ff DK |
667 | synaptics_report_semi_mt_slot(dev, 0, false, 0, 0); |
668 | synaptics_report_semi_mt_slot(dev, 1, false, 0, 0); | |
fec6e525 | 669 | } |
1da177e4 LT |
670 | } |
671 | ||
3cdfee9e DK |
672 | static void synaptics_report_buttons(struct psmouse *psmouse, |
673 | const struct synaptics_hw_state *hw) | |
674 | { | |
675 | struct input_dev *dev = psmouse->dev; | |
676 | struct synaptics_data *priv = psmouse->private; | |
677 | int i; | |
678 | ||
679 | input_report_key(dev, BTN_LEFT, hw->left); | |
680 | input_report_key(dev, BTN_RIGHT, hw->right); | |
681 | ||
682 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
683 | input_report_key(dev, BTN_MIDDLE, hw->middle); | |
684 | ||
685 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
686 | input_report_key(dev, BTN_FORWARD, hw->up); | |
687 | input_report_key(dev, BTN_BACK, hw->down); | |
688 | } | |
689 | ||
690 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
691 | input_report_key(dev, BTN_0 + i, hw->ext_buttons & (1 << i)); | |
692 | } | |
693 | ||
694 | static void synaptics_report_slot(struct input_dev *dev, int slot, | |
695 | const struct synaptics_hw_state *hw) | |
696 | { | |
697 | input_mt_slot(dev, slot); | |
698 | input_mt_report_slot_state(dev, MT_TOOL_FINGER, (hw != NULL)); | |
699 | if (!hw) | |
700 | return; | |
701 | ||
702 | input_report_abs(dev, ABS_MT_POSITION_X, hw->x); | |
703 | input_report_abs(dev, ABS_MT_POSITION_Y, synaptics_invert_y(hw->y)); | |
704 | input_report_abs(dev, ABS_MT_PRESSURE, hw->z); | |
705 | } | |
706 | ||
707 | static void synaptics_report_mt_data(struct psmouse *psmouse, | |
4dc772d2 | 708 | struct synaptics_mt_state *mt_state, |
3cdfee9e DK |
709 | const struct synaptics_hw_state *sgm) |
710 | { | |
711 | struct input_dev *dev = psmouse->dev; | |
712 | struct synaptics_data *priv = psmouse->private; | |
713 | struct synaptics_hw_state *agm = &priv->agm; | |
4dc772d2 | 714 | struct synaptics_mt_state *old = &priv->mt_state; |
3cdfee9e | 715 | |
4dc772d2 | 716 | switch (mt_state->count) { |
3cdfee9e DK |
717 | case 0: |
718 | synaptics_report_slot(dev, 0, NULL); | |
719 | synaptics_report_slot(dev, 1, NULL); | |
720 | break; | |
721 | case 1: | |
4dc772d2 DK |
722 | if (mt_state->sgm == -1) { |
723 | synaptics_report_slot(dev, 0, NULL); | |
724 | synaptics_report_slot(dev, 1, NULL); | |
725 | } else if (mt_state->sgm == 0) { | |
726 | synaptics_report_slot(dev, 0, sgm); | |
727 | synaptics_report_slot(dev, 1, NULL); | |
728 | } else { | |
729 | synaptics_report_slot(dev, 0, NULL); | |
730 | synaptics_report_slot(dev, 1, sgm); | |
731 | } | |
3cdfee9e | 732 | break; |
4dc772d2 DK |
733 | default: |
734 | /* | |
735 | * If the finger slot contained in SGM is valid, and either | |
48064bdc DK |
736 | * hasn't changed, or is new, or the old SGM has now moved to |
737 | * AGM, then report SGM in MTB slot 0. | |
4dc772d2 DK |
738 | * Otherwise, empty MTB slot 0. |
739 | */ | |
740 | if (mt_state->sgm != -1 && | |
48064bdc DK |
741 | (mt_state->sgm == old->sgm || |
742 | old->sgm == -1 || mt_state->agm == old->sgm)) | |
4dc772d2 DK |
743 | synaptics_report_slot(dev, 0, sgm); |
744 | else | |
745 | synaptics_report_slot(dev, 0, NULL); | |
746 | ||
747 | /* | |
748 | * If the finger slot contained in AGM is valid, and either | |
749 | * hasn't changed, or is new, then report AGM in MTB slot 1. | |
750 | * Otherwise, empty MTB slot 1. | |
48064bdc DK |
751 | * |
752 | * However, in the case where the AGM is new, make sure that | |
753 | * that it is either the same as the old SGM, or there was no | |
754 | * SGM. | |
755 | * | |
756 | * Otherwise, if the SGM was just 1, and the new AGM is 2, then | |
757 | * the new AGM will keep the old SGM's tracking ID, which can | |
758 | * cause apparent drumroll. This happens if in the following | |
759 | * valid finger sequence: | |
760 | * | |
761 | * Action SGM AGM (MTB slot:Contact) | |
762 | * 1. Touch contact 0 (0:0) | |
763 | * 2. Touch contact 1 (0:0, 1:1) | |
764 | * 3. Lift contact 0 (1:1) | |
765 | * 4. Touch contacts 2,3 (0:2, 1:3) | |
766 | * | |
767 | * In step 4, contact 3, in AGM must not be given the same | |
768 | * tracking ID as contact 1 had in step 3. To avoid this, | |
769 | * the first agm with contact 3 is dropped and slot 1 is | |
770 | * invalidated (tracking ID = -1). | |
4dc772d2 DK |
771 | */ |
772 | if (mt_state->agm != -1 && | |
48064bdc DK |
773 | (mt_state->agm == old->agm || |
774 | (old->agm == -1 && | |
775 | (old->sgm == -1 || mt_state->agm == old->sgm)))) | |
4dc772d2 DK |
776 | synaptics_report_slot(dev, 1, agm); |
777 | else | |
778 | synaptics_report_slot(dev, 1, NULL); | |
3cdfee9e DK |
779 | break; |
780 | } | |
781 | ||
782 | /* Don't use active slot count to generate BTN_TOOL events. */ | |
783 | input_mt_report_pointer_emulation(dev, false); | |
784 | ||
785 | /* Send the number of fingers reported by touchpad itself. */ | |
4dc772d2 | 786 | input_mt_report_finger_count(dev, mt_state->count); |
3cdfee9e DK |
787 | |
788 | synaptics_report_buttons(psmouse, sgm); | |
789 | ||
790 | input_sync(dev); | |
791 | } | |
792 | ||
4dc772d2 DK |
793 | /* Handle case where mt_state->count = 0 */ |
794 | static void synaptics_image_sensor_0f(struct synaptics_data *priv, | |
795 | struct synaptics_mt_state *mt_state) | |
796 | { | |
797 | synaptics_mt_state_set(mt_state, 0, -1, -1); | |
798 | priv->mt_state_lost = false; | |
799 | } | |
800 | ||
801 | /* Handle case where mt_state->count = 1 */ | |
802 | static void synaptics_image_sensor_1f(struct synaptics_data *priv, | |
803 | struct synaptics_mt_state *mt_state) | |
804 | { | |
805 | struct synaptics_hw_state *agm = &priv->agm; | |
806 | struct synaptics_mt_state *old = &priv->mt_state; | |
807 | ||
808 | /* | |
809 | * If the last AGM was (0,0,0), and there is only one finger left, | |
810 | * then we absolutely know that SGM contains slot 0, and all other | |
811 | * fingers have been removed. | |
812 | */ | |
813 | if (priv->agm_pending && agm->z == 0) { | |
814 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
815 | priv->mt_state_lost = false; | |
816 | return; | |
817 | } | |
818 | ||
819 | switch (old->count) { | |
820 | case 0: | |
821 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
822 | break; | |
823 | case 1: | |
824 | /* | |
825 | * If mt_state_lost, then the previous transition was 3->1, | |
826 | * and SGM now contains either slot 0 or 1, but we don't know | |
827 | * which. So, we just assume that the SGM now contains slot 1. | |
828 | * | |
829 | * If pending AGM and either: | |
830 | * (a) the previous SGM slot contains slot 0, or | |
831 | * (b) there was no SGM slot | |
832 | * then, the SGM now contains slot 1 | |
833 | * | |
834 | * Case (a) happens with very rapid "drum roll" gestures, where | |
835 | * slot 0 finger is lifted and a new slot 1 finger touches | |
836 | * within one reporting interval. | |
837 | * | |
838 | * Case (b) happens if initially two or more fingers tap | |
839 | * briefly, and all but one lift before the end of the first | |
840 | * reporting interval. | |
841 | * | |
842 | * (In both these cases, slot 0 will becomes empty, so SGM | |
843 | * contains slot 1 with the new finger) | |
844 | * | |
845 | * Else, if there was no previous SGM, it now contains slot 0. | |
846 | * | |
847 | * Otherwise, SGM still contains the same slot. | |
848 | */ | |
849 | if (priv->mt_state_lost || | |
850 | (priv->agm_pending && old->sgm <= 0)) | |
851 | synaptics_mt_state_set(mt_state, 1, 1, -1); | |
852 | else if (old->sgm == -1) | |
853 | synaptics_mt_state_set(mt_state, 1, 0, -1); | |
854 | break; | |
855 | case 2: | |
856 | /* | |
857 | * If mt_state_lost, we don't know which finger SGM contains. | |
858 | * | |
859 | * So, report 1 finger, but with both slots empty. | |
860 | * We will use slot 1 on subsequent 1->1 | |
861 | */ | |
862 | if (priv->mt_state_lost) { | |
863 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
864 | break; | |
865 | } | |
866 | /* | |
867 | * Since the last AGM was NOT (0,0,0), it was the finger in | |
868 | * slot 0 that has been removed. | |
869 | * So, SGM now contains previous AGM's slot, and AGM is now | |
870 | * empty. | |
871 | */ | |
872 | synaptics_mt_state_set(mt_state, 1, old->agm, -1); | |
873 | break; | |
874 | case 3: | |
875 | /* | |
876 | * Since last AGM was not (0,0,0), we don't know which finger | |
877 | * is left. | |
878 | * | |
879 | * So, report 1 finger, but with both slots empty. | |
880 | * We will use slot 1 on subsequent 1->1 | |
881 | */ | |
882 | synaptics_mt_state_set(mt_state, 1, -1, -1); | |
883 | priv->mt_state_lost = true; | |
884 | break; | |
6b4b49fe DK |
885 | case 4: |
886 | case 5: | |
887 | /* mt_state was updated by AGM-CONTACT packet */ | |
888 | break; | |
4dc772d2 DK |
889 | } |
890 | } | |
891 | ||
892 | /* Handle case where mt_state->count = 2 */ | |
893 | static void synaptics_image_sensor_2f(struct synaptics_data *priv, | |
894 | struct synaptics_mt_state *mt_state) | |
895 | { | |
896 | struct synaptics_mt_state *old = &priv->mt_state; | |
897 | ||
898 | switch (old->count) { | |
899 | case 0: | |
900 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
901 | break; | |
902 | case 1: | |
903 | /* | |
904 | * If previous SGM contained slot 1 or higher, SGM now contains | |
905 | * slot 0 (the newly touching finger) and AGM contains SGM's | |
906 | * previous slot. | |
907 | * | |
908 | * Otherwise, SGM still contains slot 0 and AGM now contains | |
909 | * slot 1. | |
910 | */ | |
911 | if (old->sgm >= 1) | |
912 | synaptics_mt_state_set(mt_state, 2, 0, old->sgm); | |
913 | else | |
914 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
915 | break; | |
916 | case 2: | |
917 | /* | |
918 | * If mt_state_lost, SGM now contains either finger 1 or 2, but | |
919 | * we don't know which. | |
920 | * So, we just assume that the SGM contains slot 0 and AGM 1. | |
921 | */ | |
922 | if (priv->mt_state_lost) | |
923 | synaptics_mt_state_set(mt_state, 2, 0, 1); | |
924 | /* | |
925 | * Otherwise, use the same mt_state, since it either hasn't | |
926 | * changed, or was updated by a recently received AGM-CONTACT | |
927 | * packet. | |
928 | */ | |
929 | break; | |
930 | case 3: | |
931 | /* | |
932 | * 3->2 transitions have two unsolvable problems: | |
933 | * 1) no indication is given which finger was removed | |
934 | * 2) no way to tell if agm packet was for finger 3 | |
935 | * before 3->2, or finger 2 after 3->2. | |
936 | * | |
937 | * So, report 2 fingers, but empty all slots. | |
938 | * We will guess slots [0,1] on subsequent 2->2. | |
939 | */ | |
940 | synaptics_mt_state_set(mt_state, 2, -1, -1); | |
941 | priv->mt_state_lost = true; | |
942 | break; | |
6b4b49fe DK |
943 | case 4: |
944 | case 5: | |
945 | /* mt_state was updated by AGM-CONTACT packet */ | |
946 | break; | |
4dc772d2 DK |
947 | } |
948 | } | |
949 | ||
950 | /* Handle case where mt_state->count = 3 */ | |
951 | static void synaptics_image_sensor_3f(struct synaptics_data *priv, | |
952 | struct synaptics_mt_state *mt_state) | |
953 | { | |
954 | struct synaptics_mt_state *old = &priv->mt_state; | |
955 | ||
956 | switch (old->count) { | |
957 | case 0: | |
958 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
959 | break; | |
960 | case 1: | |
961 | /* | |
962 | * If previous SGM contained slot 2 or higher, SGM now contains | |
963 | * slot 0 (one of the newly touching fingers) and AGM contains | |
964 | * SGM's previous slot. | |
965 | * | |
966 | * Otherwise, SGM now contains slot 0 and AGM contains slot 2. | |
967 | */ | |
968 | if (old->sgm >= 2) | |
969 | synaptics_mt_state_set(mt_state, 3, 0, old->sgm); | |
970 | else | |
971 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
972 | break; | |
973 | case 2: | |
6b4b49fe DK |
974 | /* |
975 | * If the AGM previously contained slot 3 or higher, then the | |
976 | * newly touching finger is in the lowest available slot. | |
977 | * | |
978 | * If SGM was previously 1 or higher, then the new SGM is | |
979 | * now slot 0 (with a new finger), otherwise, the new finger | |
980 | * is now in a hidden slot between 0 and AGM's slot. | |
981 | * | |
982 | * In all such cases, the SGM now contains slot 0, and the AGM | |
983 | * continues to contain the same slot as before. | |
984 | */ | |
985 | if (old->agm >= 3) { | |
986 | synaptics_mt_state_set(mt_state, 3, 0, old->agm); | |
987 | break; | |
988 | } | |
989 | ||
4dc772d2 DK |
990 | /* |
991 | * After some 3->1 and all 3->2 transitions, we lose track | |
992 | * of which slot is reported by SGM and AGM. | |
993 | * | |
994 | * For 2->3 in this state, report 3 fingers, but empty all | |
995 | * slots, and we will guess (0,2) on a subsequent 0->3. | |
996 | * | |
997 | * To userspace, the resulting transition will look like: | |
998 | * 2:[0,1] -> 3:[-1,-1] -> 3:[0,2] | |
999 | */ | |
1000 | if (priv->mt_state_lost) { | |
1001 | synaptics_mt_state_set(mt_state, 3, -1, -1); | |
1002 | break; | |
1003 | } | |
1004 | ||
1005 | /* | |
1006 | * If the (SGM,AGM) really previously contained slots (0, 1), | |
1007 | * then we cannot know what slot was just reported by the AGM, | |
1008 | * because the 2->3 transition can occur either before or after | |
1009 | * the AGM packet. Thus, this most recent AGM could contain | |
1010 | * either the same old slot 1 or the new slot 2. | |
1011 | * Subsequent AGMs will be reporting slot 2. | |
1012 | * | |
1013 | * To userspace, the resulting transition will look like: | |
1014 | * 2:[0,1] -> 3:[0,-1] -> 3:[0,2] | |
1015 | */ | |
1016 | synaptics_mt_state_set(mt_state, 3, 0, -1); | |
1017 | break; | |
1018 | case 3: | |
1019 | /* | |
1020 | * If, for whatever reason, the previous agm was invalid, | |
1021 | * Assume SGM now contains slot 0, AGM now contains slot 2. | |
1022 | */ | |
1023 | if (old->agm <= 2) | |
1024 | synaptics_mt_state_set(mt_state, 3, 0, 2); | |
1025 | /* | |
1026 | * mt_state either hasn't changed, or was updated by a recently | |
1027 | * received AGM-CONTACT packet. | |
1028 | */ | |
1029 | break; | |
6b4b49fe DK |
1030 | |
1031 | case 4: | |
1032 | case 5: | |
1033 | /* mt_state was updated by AGM-CONTACT packet */ | |
1034 | break; | |
4dc772d2 DK |
1035 | } |
1036 | } | |
1037 | ||
6b4b49fe DK |
1038 | /* Handle case where mt_state->count = 4, or = 5 */ |
1039 | static void synaptics_image_sensor_45f(struct synaptics_data *priv, | |
1040 | struct synaptics_mt_state *mt_state) | |
1041 | { | |
1042 | /* mt_state was updated correctly by AGM-CONTACT packet */ | |
1043 | priv->mt_state_lost = false; | |
1044 | } | |
1045 | ||
3cdfee9e DK |
1046 | static void synaptics_image_sensor_process(struct psmouse *psmouse, |
1047 | struct synaptics_hw_state *sgm) | |
1048 | { | |
4dc772d2 DK |
1049 | struct synaptics_data *priv = psmouse->private; |
1050 | struct synaptics_hw_state *agm = &priv->agm; | |
1051 | struct synaptics_mt_state mt_state; | |
3cdfee9e | 1052 | |
4dc772d2 DK |
1053 | /* Initialize using current mt_state (as updated by last agm) */ |
1054 | mt_state = agm->mt_state; | |
1055 | ||
1056 | /* | |
1057 | * Update mt_state using the new finger count and current mt_state. | |
1058 | */ | |
3cdfee9e | 1059 | if (sgm->z == 0) |
4dc772d2 | 1060 | synaptics_image_sensor_0f(priv, &mt_state); |
3cdfee9e | 1061 | else if (sgm->w >= 4) |
4dc772d2 | 1062 | synaptics_image_sensor_1f(priv, &mt_state); |
3cdfee9e | 1063 | else if (sgm->w == 0) |
4dc772d2 | 1064 | synaptics_image_sensor_2f(priv, &mt_state); |
6b4b49fe | 1065 | else if (sgm->w == 1 && mt_state.count <= 3) |
4dc772d2 | 1066 | synaptics_image_sensor_3f(priv, &mt_state); |
6b4b49fe DK |
1067 | else |
1068 | synaptics_image_sensor_45f(priv, &mt_state); | |
3cdfee9e DK |
1069 | |
1070 | /* Send resulting input events to user space */ | |
4dc772d2 DK |
1071 | synaptics_report_mt_data(psmouse, &mt_state, sgm); |
1072 | ||
1073 | /* Store updated mt_state */ | |
1074 | priv->mt_state = agm->mt_state = mt_state; | |
1075 | priv->agm_pending = false; | |
3cdfee9e DK |
1076 | } |
1077 | ||
1da177e4 LT |
1078 | /* |
1079 | * called for each full received packet from the touchpad | |
1080 | */ | |
1081 | static void synaptics_process_packet(struct psmouse *psmouse) | |
1082 | { | |
2e5b636b | 1083 | struct input_dev *dev = psmouse->dev; |
1da177e4 LT |
1084 | struct synaptics_data *priv = psmouse->private; |
1085 | struct synaptics_hw_state hw; | |
1086 | int num_fingers; | |
1087 | int finger_width; | |
1da177e4 | 1088 | |
fec6e525 HR |
1089 | if (synaptics_parse_hw_state(psmouse->packet, priv, &hw)) |
1090 | return; | |
1da177e4 | 1091 | |
3cdfee9e DK |
1092 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { |
1093 | synaptics_image_sensor_process(psmouse, &hw); | |
1094 | return; | |
1095 | } | |
1096 | ||
1da177e4 LT |
1097 | if (hw.scroll) { |
1098 | priv->scroll += hw.scroll; | |
1099 | ||
1100 | while (priv->scroll >= 4) { | |
1101 | input_report_key(dev, BTN_BACK, !hw.down); | |
1102 | input_sync(dev); | |
1103 | input_report_key(dev, BTN_BACK, hw.down); | |
1104 | input_sync(dev); | |
1105 | priv->scroll -= 4; | |
1106 | } | |
1107 | while (priv->scroll <= -4) { | |
1108 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
1109 | input_sync(dev); | |
1110 | input_report_key(dev, BTN_FORWARD, hw.up); | |
1111 | input_sync(dev); | |
1112 | priv->scroll += 4; | |
1113 | } | |
1114 | return; | |
1115 | } | |
1116 | ||
4f56ce92 | 1117 | if (hw.z > 0 && hw.x > 1) { |
1da177e4 LT |
1118 | num_fingers = 1; |
1119 | finger_width = 5; | |
1120 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
1121 | switch (hw.w) { | |
1122 | case 0 ... 1: | |
1123 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
1124 | num_fingers = hw.w + 2; | |
1125 | break; | |
1126 | case 2: | |
1127 | if (SYN_MODEL_PEN(priv->model_id)) | |
1128 | ; /* Nothing, treat a pen as a single finger */ | |
1129 | break; | |
1130 | case 4 ... 15: | |
1131 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
1132 | finger_width = hw.w; | |
1133 | break; | |
1134 | } | |
1135 | } | |
1136 | } else { | |
1137 | num_fingers = 0; | |
1138 | finger_width = 0; | |
1139 | } | |
1140 | ||
fec6e525 | 1141 | if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) |
7afdb842 DK |
1142 | synaptics_report_semi_mt_data(dev, &hw, &priv->agm, |
1143 | num_fingers); | |
fec6e525 | 1144 | |
1da177e4 LT |
1145 | /* Post events |
1146 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
1147 | * absolute -> relative conversion | |
1148 | */ | |
1149 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
1150 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
1151 | ||
4f56ce92 | 1152 | if (num_fingers > 0) { |
1da177e4 | 1153 | input_report_abs(dev, ABS_X, hw.x); |
6de58dd6 | 1154 | input_report_abs(dev, ABS_Y, synaptics_invert_y(hw.y)); |
1da177e4 LT |
1155 | } |
1156 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
1157 | ||
2a8e7710 CB |
1158 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
1159 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); | |
1160 | ||
1da177e4 | 1161 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); |
e42b6646 PH |
1162 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
1163 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); | |
1164 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); | |
1165 | } | |
1166 | ||
3cdfee9e | 1167 | synaptics_report_buttons(psmouse, &hw); |
1da177e4 LT |
1168 | |
1169 | input_sync(dev); | |
1170 | } | |
1171 | ||
b5d21704 DT |
1172 | static int synaptics_validate_byte(struct psmouse *psmouse, |
1173 | int idx, unsigned char pkt_type) | |
1da177e4 | 1174 | { |
e38de678 HD |
1175 | static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; |
1176 | static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; | |
1177 | static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; | |
1178 | static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; | |
1179 | static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; | |
b5d21704 | 1180 | const char *packet = psmouse->packet; |
1da177e4 LT |
1181 | |
1182 | if (idx < 0 || idx > 4) | |
1183 | return 0; | |
1184 | ||
1185 | switch (pkt_type) { | |
1da177e4 | 1186 | |
a62f0d27 DT |
1187 | case SYN_NEWABS: |
1188 | case SYN_NEWABS_RELAXED: | |
1189 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1190 | |
a62f0d27 DT |
1191 | case SYN_NEWABS_STRICT: |
1192 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 1193 | |
a62f0d27 DT |
1194 | case SYN_OLDABS: |
1195 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
1196 | ||
1197 | default: | |
b5d21704 | 1198 | psmouse_err(psmouse, "unknown packet type %d\n", pkt_type); |
a62f0d27 | 1199 | return 0; |
1da177e4 LT |
1200 | } |
1201 | } | |
1202 | ||
1203 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) | |
1204 | { | |
1205 | int i; | |
1206 | ||
1207 | for (i = 0; i < 5; i++) | |
b5d21704 DT |
1208 | if (!synaptics_validate_byte(psmouse, i, SYN_NEWABS_STRICT)) { |
1209 | psmouse_info(psmouse, "using relaxed packet validation\n"); | |
1da177e4 LT |
1210 | return SYN_NEWABS_RELAXED; |
1211 | } | |
1212 | ||
1213 | return SYN_NEWABS_STRICT; | |
1214 | } | |
1215 | ||
7d12e780 | 1216 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) |
1da177e4 | 1217 | { |
1da177e4 LT |
1218 | struct synaptics_data *priv = psmouse->private; |
1219 | ||
1da177e4 LT |
1220 | if (psmouse->pktcnt >= 6) { /* Full packet received */ |
1221 | if (unlikely(priv->pkt_type == SYN_NEWABS)) | |
1222 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); | |
1223 | ||
a8b3c0f5 DT |
1224 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && |
1225 | synaptics_is_pt_packet(psmouse->packet)) { | |
1226 | if (priv->pt_port) | |
1227 | synaptics_pass_pt_packet(priv->pt_port, psmouse->packet); | |
1da177e4 LT |
1228 | } else |
1229 | synaptics_process_packet(psmouse); | |
1230 | ||
1231 | return PSMOUSE_FULL_PACKET; | |
1232 | } | |
1233 | ||
b5d21704 | 1234 | return synaptics_validate_byte(psmouse, psmouse->pktcnt - 1, priv->pkt_type) ? |
1da177e4 LT |
1235 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; |
1236 | } | |
1237 | ||
1238 | /***************************************************************************** | |
1239 | * Driver initialization/cleanup functions | |
1240 | ****************************************************************************/ | |
85615476 DK |
1241 | static void set_abs_position_params(struct input_dev *dev, |
1242 | struct synaptics_data *priv, int x_code, | |
1243 | int y_code) | |
1da177e4 | 1244 | { |
85615476 DK |
1245 | int x_min = priv->x_min ?: XMIN_NOMINAL; |
1246 | int x_max = priv->x_max ?: XMAX_NOMINAL; | |
1247 | int y_min = priv->y_min ?: YMIN_NOMINAL; | |
1248 | int y_max = priv->y_max ?: YMAX_NOMINAL; | |
a9f0b79e DK |
1249 | int fuzz = SYN_CAP_REDUCED_FILTERING(priv->ext_cap_0c) ? |
1250 | SYN_REDUCED_FILTER_FUZZ : 0; | |
1da177e4 | 1251 | |
85615476 DK |
1252 | input_set_abs_params(dev, x_code, x_min, x_max, fuzz, 0); |
1253 | input_set_abs_params(dev, y_code, y_min, y_max, fuzz, 0); | |
1254 | input_abs_set_res(dev, x_code, priv->x_res); | |
1255 | input_abs_set_res(dev, y_code, priv->y_res); | |
1256 | } | |
1257 | ||
1258 | static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) | |
1259 | { | |
1260 | int i; | |
1261 | ||
7968a5dd | 1262 | /* Things that apply to both modes */ |
c14890a8 | 1263 | __set_bit(INPUT_PROP_POINTER, dev->propbit); |
7968a5dd DD |
1264 | __set_bit(EV_KEY, dev->evbit); |
1265 | __set_bit(BTN_LEFT, dev->keybit); | |
1266 | __set_bit(BTN_RIGHT, dev->keybit); | |
c14890a8 | 1267 | |
7968a5dd DD |
1268 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
1269 | __set_bit(BTN_MIDDLE, dev->keybit); | |
1270 | ||
1271 | if (!priv->absolute_mode) { | |
1272 | /* Relative mode */ | |
1273 | __set_bit(EV_REL, dev->evbit); | |
1274 | __set_bit(REL_X, dev->relbit); | |
1275 | __set_bit(REL_Y, dev->relbit); | |
1276 | return; | |
1277 | } | |
1278 | ||
1279 | /* Absolute mode */ | |
b7802c5c | 1280 | __set_bit(EV_ABS, dev->evbit); |
85615476 | 1281 | set_abs_position_params(dev, priv, ABS_X, ABS_Y); |
1da177e4 | 1282 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); |
2a8e7710 | 1283 | |
3cdfee9e | 1284 | if (SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)) { |
3cdfee9e DK |
1285 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, |
1286 | ABS_MT_POSITION_Y); | |
1287 | /* Image sensors can report per-contact pressure */ | |
1288 | input_set_abs_params(dev, ABS_MT_PRESSURE, 0, 255, 0, 0); | |
0b85bf78 | 1289 | input_mt_init_slots(dev, 2, INPUT_MT_POINTER); |
6b4b49fe DK |
1290 | |
1291 | /* Image sensors can signal 4 and 5 finger clicks */ | |
1292 | __set_bit(BTN_TOOL_QUADTAP, dev->keybit); | |
1293 | __set_bit(BTN_TOOL_QUINTTAP, dev->keybit); | |
3cdfee9e DK |
1294 | } else if (SYN_CAP_ADV_GESTURE(priv->ext_cap_0c)) { |
1295 | /* Non-image sensors with AGM use semi-mt */ | |
fec6e525 | 1296 | __set_bit(INPUT_PROP_SEMI_MT, dev->propbit); |
b4adbbef | 1297 | input_mt_init_slots(dev, 2, 0); |
85615476 DK |
1298 | set_abs_position_params(dev, priv, ABS_MT_POSITION_X, |
1299 | ABS_MT_POSITION_Y); | |
fec6e525 HR |
1300 | } |
1301 | ||
2a8e7710 | 1302 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
58fb0218 | 1303 | input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0); |
1da177e4 | 1304 | |
b7802c5c DT |
1305 | __set_bit(BTN_TOUCH, dev->keybit); |
1306 | __set_bit(BTN_TOOL_FINGER, dev->keybit); | |
1da177e4 | 1307 | |
e42b6646 | 1308 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
b7802c5c DT |
1309 | __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); |
1310 | __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); | |
e42b6646 PH |
1311 | } |
1312 | ||
1da177e4 LT |
1313 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || |
1314 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
b7802c5c DT |
1315 | __set_bit(BTN_FORWARD, dev->keybit); |
1316 | __set_bit(BTN_BACK, dev->keybit); | |
1da177e4 LT |
1317 | } |
1318 | ||
1319 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
b7802c5c | 1320 | __set_bit(BTN_0 + i, dev->keybit); |
1da177e4 | 1321 | |
b7802c5c DT |
1322 | __clear_bit(EV_REL, dev->evbit); |
1323 | __clear_bit(REL_X, dev->relbit); | |
1324 | __clear_bit(REL_Y, dev->relbit); | |
ec20a022 | 1325 | |
5f57d67d | 1326 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { |
c14890a8 | 1327 | __set_bit(INPUT_PROP_BUTTONPAD, dev->propbit); |
5f57d67d TI |
1328 | /* Clickpads report only left button */ |
1329 | __clear_bit(BTN_RIGHT, dev->keybit); | |
1330 | __clear_bit(BTN_MIDDLE, dev->keybit); | |
1331 | } | |
1da177e4 LT |
1332 | } |
1333 | ||
7968a5dd DD |
1334 | static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse, |
1335 | void *data, char *buf) | |
1336 | { | |
1337 | struct synaptics_data *priv = psmouse->private; | |
1338 | ||
1339 | return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0'); | |
1340 | } | |
1341 | ||
1342 | static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse, | |
1343 | void *data, const char *buf, | |
1344 | size_t len) | |
1345 | { | |
1346 | struct synaptics_data *priv = psmouse->private; | |
1347 | unsigned int value; | |
1348 | int err; | |
1349 | ||
1350 | err = kstrtouint(buf, 10, &value); | |
1351 | if (err) | |
1352 | return err; | |
1353 | ||
1354 | if (value > 1) | |
1355 | return -EINVAL; | |
1356 | ||
1357 | if (value == priv->disable_gesture) | |
1358 | return len; | |
1359 | ||
1360 | priv->disable_gesture = value; | |
1361 | if (value) | |
1362 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
1363 | else | |
1364 | priv->mode &= ~SYN_BIT_DISABLE_GESTURE; | |
1365 | ||
1366 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
1367 | return -EIO; | |
1368 | ||
1369 | return len; | |
1370 | } | |
1371 | ||
1372 | PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL, | |
1373 | synaptics_show_disable_gesture, | |
1374 | synaptics_set_disable_gesture); | |
1375 | ||
1da177e4 LT |
1376 | static void synaptics_disconnect(struct psmouse *psmouse) |
1377 | { | |
7968a5dd DD |
1378 | struct synaptics_data *priv = psmouse->private; |
1379 | ||
1380 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1381 | device_remove_file(&psmouse->ps2dev.serio->dev, | |
1382 | &psmouse_attr_disable_gesture.dattr); | |
1383 | ||
1da177e4 | 1384 | synaptics_reset(psmouse); |
7968a5dd | 1385 | kfree(priv); |
1da177e4 LT |
1386 | psmouse->private = NULL; |
1387 | } | |
1388 | ||
1389 | static int synaptics_reconnect(struct psmouse *psmouse) | |
1390 | { | |
1391 | struct synaptics_data *priv = psmouse->private; | |
1392 | struct synaptics_data old_priv = *priv; | |
eeb06558 | 1393 | unsigned char param[2]; |
c63fe0a4 APF |
1394 | int retry = 0; |
1395 | int error; | |
1da177e4 | 1396 | |
c63fe0a4 APF |
1397 | do { |
1398 | psmouse_reset(psmouse); | |
8521478f DT |
1399 | if (retry) { |
1400 | /* | |
1401 | * On some boxes, right after resuming, the touchpad | |
1402 | * needs some time to finish initializing (I assume | |
1403 | * it needs time to calibrate) and start responding | |
1404 | * to Synaptics-specific queries, so let's wait a | |
1405 | * bit. | |
1406 | */ | |
1407 | ssleep(1); | |
1408 | } | |
eeb06558 | 1409 | ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETID); |
c63fe0a4 APF |
1410 | error = synaptics_detect(psmouse, 0); |
1411 | } while (error && ++retry < 3); | |
4d368456 | 1412 | |
c63fe0a4 | 1413 | if (error) |
1da177e4 LT |
1414 | return -1; |
1415 | ||
c63fe0a4 | 1416 | if (retry > 1) |
b5d21704 | 1417 | psmouse_dbg(psmouse, "reconnected after %d tries\n", retry); |
c63fe0a4 | 1418 | |
1da177e4 | 1419 | if (synaptics_query_hardware(psmouse)) { |
b5d21704 | 1420 | psmouse_err(psmouse, "Unable to query device.\n"); |
1da177e4 LT |
1421 | return -1; |
1422 | } | |
1423 | ||
7968a5dd | 1424 | if (synaptics_set_mode(psmouse)) { |
b5d21704 | 1425 | psmouse_err(psmouse, "Unable to initialize device.\n"); |
1da177e4 LT |
1426 | return -1; |
1427 | } | |
1428 | ||
baddf589 APF |
1429 | if (old_priv.identity != priv->identity || |
1430 | old_priv.model_id != priv->model_id || | |
1431 | old_priv.capabilities != priv->capabilities || | |
1432 | old_priv.ext_cap != priv->ext_cap) { | |
b5d21704 DT |
1433 | psmouse_err(psmouse, |
1434 | "hardware appears to be different: id(%ld-%ld), model(%ld-%ld), caps(%lx-%lx), ext(%lx-%lx).\n", | |
1435 | old_priv.identity, priv->identity, | |
1436 | old_priv.model_id, priv->model_id, | |
1437 | old_priv.capabilities, priv->capabilities, | |
1438 | old_priv.ext_cap, priv->ext_cap); | |
baddf589 APF |
1439 | return -1; |
1440 | } | |
1441 | ||
1da177e4 LT |
1442 | return 0; |
1443 | } | |
1444 | ||
7705d548 DT |
1445 | static bool impaired_toshiba_kbc; |
1446 | ||
c963156c | 1447 | static const struct dmi_system_id toshiba_dmi_table[] __initconst = { |
7705d548 | 1448 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) |
1da177e4 | 1449 | { |
9961e259 | 1450 | /* Toshiba Satellite */ |
1da177e4 LT |
1451 | .matches = { |
1452 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c | 1453 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
1da177e4 LT |
1454 | }, |
1455 | }, | |
9ba5eaaf | 1456 | { |
9961e259 | 1457 | /* Toshiba Dynabook */ |
9ba5eaaf SH |
1458 | .matches = { |
1459 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c RT |
1460 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), |
1461 | }, | |
1462 | }, | |
1463 | { | |
9961e259 | 1464 | /* Toshiba Portege M300 */ |
53a2670c RT |
1465 | .matches = { |
1466 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1467 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), | |
9ba5eaaf | 1468 | }, |
5f5eeff4 DT |
1469 | |
1470 | }, | |
1471 | { | |
9961e259 | 1472 | /* Toshiba Portege M300 */ |
5f5eeff4 DT |
1473 | .matches = { |
1474 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
1475 | DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), | |
1476 | DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), | |
1477 | }, | |
1478 | ||
9ba5eaaf | 1479 | }, |
1da177e4 | 1480 | #endif |
70874867 | 1481 | { } |
7705d548 DT |
1482 | }; |
1483 | ||
ef8313bb AS |
1484 | static bool broken_olpc_ec; |
1485 | ||
c963156c | 1486 | static const struct dmi_system_id olpc_dmi_table[] __initconst = { |
ef8313bb AS |
1487 | #if defined(CONFIG_DMI) && defined(CONFIG_OLPC) |
1488 | { | |
1489 | /* OLPC XO-1 or XO-1.5 */ | |
1490 | .matches = { | |
1491 | DMI_MATCH(DMI_SYS_VENDOR, "OLPC"), | |
1492 | DMI_MATCH(DMI_PRODUCT_NAME, "XO"), | |
1493 | }, | |
1494 | }, | |
ef8313bb | 1495 | #endif |
70874867 | 1496 | { } |
ef8313bb AS |
1497 | }; |
1498 | ||
421e08c4 BT |
1499 | static const struct dmi_system_id min_max_dmi_table[] __initconst = { |
1500 | #if defined(CONFIG_DMI) | |
1501 | { | |
1502 | /* Lenovo ThinkPad Helix */ | |
1503 | .matches = { | |
1504 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1505 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad Helix"), | |
1506 | }, | |
1507 | .driver_data = (int []){1024, 5052, 2258, 4832}, | |
1508 | }, | |
8a0435d9 HG |
1509 | { |
1510 | /* Lenovo ThinkPad X240 */ | |
1511 | .matches = { | |
1512 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1513 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad X240"), | |
1514 | }, | |
1515 | .driver_data = (int []){1232, 5710, 1156, 4696}, | |
1516 | }, | |
421e08c4 BT |
1517 | { |
1518 | /* Lenovo ThinkPad T440s */ | |
1519 | .matches = { | |
1520 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1521 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T440"), | |
1522 | }, | |
1523 | .driver_data = (int []){1024, 5112, 2024, 4832}, | |
1524 | }, | |
1525 | { | |
1526 | /* Lenovo ThinkPad T540p */ | |
1527 | .matches = { | |
1528 | DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"), | |
1529 | DMI_MATCH(DMI_PRODUCT_VERSION, "ThinkPad T540"), | |
1530 | }, | |
1531 | .driver_data = (int []){1024, 5056, 2058, 4832}, | |
1532 | }, | |
1533 | #endif | |
1534 | { } | |
1535 | }; | |
1536 | ||
7705d548 DT |
1537 | void __init synaptics_module_init(void) |
1538 | { | |
421e08c4 BT |
1539 | const struct dmi_system_id *min_max_dmi; |
1540 | ||
7705d548 | 1541 | impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); |
ef8313bb | 1542 | broken_olpc_ec = dmi_check_system(olpc_dmi_table); |
421e08c4 BT |
1543 | |
1544 | min_max_dmi = dmi_first_match(min_max_dmi_table); | |
1545 | if (min_max_dmi) | |
1546 | quirk_min_max = min_max_dmi->driver_data; | |
7705d548 | 1547 | } |
1da177e4 | 1548 | |
7968a5dd | 1549 | static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode) |
1da177e4 LT |
1550 | { |
1551 | struct synaptics_data *priv; | |
7968a5dd | 1552 | int err = -1; |
1da177e4 | 1553 | |
ef8313bb | 1554 | /* |
83551c01 DD |
1555 | * The OLPC XO has issues with Synaptics' absolute mode; the constant |
1556 | * packet spew overloads the EC such that key presses on the keyboard | |
1557 | * are missed. Given that, don't even attempt to use Absolute mode. | |
1558 | * Relative mode seems to work just fine. | |
ef8313bb | 1559 | */ |
83551c01 | 1560 | if (absolute_mode && broken_olpc_ec) { |
b5d21704 DT |
1561 | psmouse_info(psmouse, |
1562 | "OLPC XO detected, not enabling Synaptics protocol.\n"); | |
ef8313bb AS |
1563 | return -ENODEV; |
1564 | } | |
1565 | ||
b39787a9 | 1566 | psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); |
1da177e4 | 1567 | if (!priv) |
6792cbbb | 1568 | return -ENOMEM; |
1da177e4 | 1569 | |
4d368456 AW |
1570 | psmouse_reset(psmouse); |
1571 | ||
1da177e4 | 1572 | if (synaptics_query_hardware(psmouse)) { |
b5d21704 | 1573 | psmouse_err(psmouse, "Unable to query device.\n"); |
1da177e4 LT |
1574 | goto init_fail; |
1575 | } | |
1576 | ||
7968a5dd DD |
1577 | priv->absolute_mode = absolute_mode; |
1578 | if (SYN_ID_DISGEST_SUPPORTED(priv->identity)) | |
1579 | priv->disable_gesture = true; | |
1da177e4 | 1580 | |
7968a5dd DD |
1581 | if (synaptics_set_mode(psmouse)) { |
1582 | psmouse_err(psmouse, "Unable to initialize device.\n"); | |
fec6e525 HR |
1583 | goto init_fail; |
1584 | } | |
1585 | ||
1da177e4 LT |
1586 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; |
1587 | ||
b5d21704 | 1588 | psmouse_info(psmouse, |
c6bd9d46 | 1589 | "Touchpad model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx, board id: %lu, fw id: %lu\n", |
b5d21704 DT |
1590 | SYN_ID_MODEL(priv->identity), |
1591 | SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), | |
1592 | priv->model_id, | |
c6bd9d46 DK |
1593 | priv->capabilities, priv->ext_cap, priv->ext_cap_0c, |
1594 | priv->board_id, priv->firmware_id); | |
409b7506 | 1595 | |
2e5b636b | 1596 | set_input_params(psmouse->dev, priv); |
1da177e4 | 1597 | |
887cc127 DT |
1598 | /* |
1599 | * Encode touchpad model so that it can be used to set | |
1600 | * input device->id.version and be visible to userspace. | |
1601 | * Because version is __u16 we have to drop something. | |
1602 | * Hardware info bits seem to be good candidates as they | |
1603 | * are documented to be for Synaptics corp. internal use. | |
1604 | */ | |
1605 | psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | | |
1606 | (priv->model_id & 0x000000ff); | |
1607 | ||
7968a5dd DD |
1608 | if (absolute_mode) { |
1609 | psmouse->protocol_handler = synaptics_process_byte; | |
1610 | psmouse->pktsize = 6; | |
1611 | } else { | |
1612 | /* Relative mode follows standard PS/2 mouse protocol */ | |
1613 | psmouse->protocol_handler = psmouse_process_byte; | |
1614 | psmouse->pktsize = 3; | |
1615 | } | |
1616 | ||
1da177e4 LT |
1617 | psmouse->set_rate = synaptics_set_rate; |
1618 | psmouse->disconnect = synaptics_disconnect; | |
1619 | psmouse->reconnect = synaptics_reconnect; | |
a1cec061 | 1620 | psmouse->cleanup = synaptics_reset; |
f0d5c6f4 DT |
1621 | /* Synaptics can usually stay in sync without extra help */ |
1622 | psmouse->resync_time = 0; | |
1da177e4 LT |
1623 | |
1624 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
1625 | synaptics_pt_create(psmouse); | |
1626 | ||
1da177e4 LT |
1627 | /* |
1628 | * Toshiba's KBC seems to have trouble handling data from | |
7ee99161 AS |
1629 | * Synaptics at full rate. Switch to a lower rate (roughly |
1630 | * the same rate as a standard PS/2 mouse). | |
1da177e4 | 1631 | */ |
7705d548 | 1632 | if (psmouse->rate >= 80 && impaired_toshiba_kbc) { |
b5d21704 DT |
1633 | psmouse_info(psmouse, |
1634 | "Toshiba %s detected, limiting rate to 40pps.\n", | |
1635 | dmi_get_system_info(DMI_PRODUCT_NAME)); | |
1da177e4 LT |
1636 | psmouse->rate = 40; |
1637 | } | |
1da177e4 | 1638 | |
7968a5dd DD |
1639 | if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) { |
1640 | err = device_create_file(&psmouse->ps2dev.serio->dev, | |
1641 | &psmouse_attr_disable_gesture.dattr); | |
1642 | if (err) { | |
1643 | psmouse_err(psmouse, | |
1644 | "Failed to create disable_gesture attribute (%d)", | |
1645 | err); | |
1646 | goto init_fail; | |
1647 | } | |
1648 | } | |
1649 | ||
1da177e4 LT |
1650 | return 0; |
1651 | ||
1652 | init_fail: | |
1653 | kfree(priv); | |
7968a5dd DD |
1654 | return err; |
1655 | } | |
1656 | ||
1657 | int synaptics_init(struct psmouse *psmouse) | |
1658 | { | |
1659 | return __synaptics_init(psmouse, true); | |
1660 | } | |
1661 | ||
1662 | int synaptics_init_relative(struct psmouse *psmouse) | |
1663 | { | |
1664 | return __synaptics_init(psmouse, false); | |
1da177e4 LT |
1665 | } |
1666 | ||
e4e6efd2 DD |
1667 | bool synaptics_supported(void) |
1668 | { | |
1669 | return true; | |
1670 | } | |
1671 | ||
55e3d922 AS |
1672 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
1673 | ||
7705d548 DT |
1674 | void __init synaptics_module_init(void) |
1675 | { | |
1676 | } | |
1677 | ||
55e3d922 AS |
1678 | int synaptics_init(struct psmouse *psmouse) |
1679 | { | |
1680 | return -ENOSYS; | |
1681 | } | |
1682 | ||
e4e6efd2 DD |
1683 | bool synaptics_supported(void) |
1684 | { | |
1685 | return false; | |
1686 | } | |
1687 | ||
55e3d922 | 1688 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ |