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