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