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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> | |
7705d548 | 27 | #include <linux/dmi.h> |
1da177e4 LT |
28 | #include <linux/input.h> |
29 | #include <linux/serio.h> | |
30 | #include <linux/libps2.h> | |
5a0e3ad6 | 31 | #include <linux/slab.h> |
1da177e4 LT |
32 | #include "psmouse.h" |
33 | #include "synaptics.h" | |
34 | ||
35 | /* | |
36 | * The x/y limits are taken from the Synaptics TouchPad interfacing Guide, | |
37 | * section 2.3.2, which says that they should be valid regardless of the | |
38 | * actual size of the sensor. | |
39 | */ | |
40 | #define XMIN_NOMINAL 1472 | |
41 | #define XMAX_NOMINAL 5472 | |
42 | #define YMIN_NOMINAL 1408 | |
43 | #define YMAX_NOMINAL 4448 | |
44 | ||
55e3d922 | 45 | |
1da177e4 | 46 | /***************************************************************************** |
55e3d922 | 47 | * Stuff we need even when we do not want native Synaptics support |
1da177e4 LT |
48 | ****************************************************************************/ |
49 | ||
50 | /* | |
55e3d922 | 51 | * Set the synaptics touchpad mode byte by special commands |
1da177e4 | 52 | */ |
55e3d922 | 53 | static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode) |
1da177e4 | 54 | { |
55e3d922 AS |
55 | unsigned char param[1]; |
56 | ||
57 | if (psmouse_sliced_command(psmouse, mode)) | |
1da177e4 | 58 | return -1; |
55e3d922 AS |
59 | param[0] = SYN_PS_SET_MODE2; |
60 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE)) | |
1da177e4 LT |
61 | return -1; |
62 | return 0; | |
63 | } | |
64 | ||
b7802c5c | 65 | int synaptics_detect(struct psmouse *psmouse, bool set_properties) |
55e3d922 AS |
66 | { |
67 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
68 | unsigned char param[4]; | |
69 | ||
70 | param[0] = 0; | |
71 | ||
72 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
73 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
74 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
75 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
76 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); | |
77 | ||
78 | if (param[1] != 0x47) | |
79 | return -ENODEV; | |
80 | ||
81 | if (set_properties) { | |
82 | psmouse->vendor = "Synaptics"; | |
83 | psmouse->name = "TouchPad"; | |
84 | } | |
85 | ||
86 | return 0; | |
87 | } | |
88 | ||
89 | void synaptics_reset(struct psmouse *psmouse) | |
90 | { | |
91 | /* reset touchpad back to relative mode, gestures enabled */ | |
92 | synaptics_mode_cmd(psmouse, 0); | |
93 | } | |
94 | ||
95 | #ifdef CONFIG_MOUSE_PS2_SYNAPTICS | |
96 | ||
97 | /***************************************************************************** | |
98 | * Synaptics communications functions | |
99 | ****************************************************************************/ | |
100 | ||
1da177e4 | 101 | /* |
55e3d922 | 102 | * Send a command to the synpatics touchpad by special commands |
1da177e4 | 103 | */ |
55e3d922 | 104 | static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) |
1da177e4 | 105 | { |
55e3d922 | 106 | if (psmouse_sliced_command(psmouse, c)) |
1da177e4 | 107 | return -1; |
55e3d922 | 108 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) |
1da177e4 LT |
109 | return -1; |
110 | return 0; | |
111 | } | |
112 | ||
113 | /* | |
114 | * Read the model-id bytes from the touchpad | |
115 | * see also SYN_MODEL_* macros | |
116 | */ | |
117 | static int synaptics_model_id(struct psmouse *psmouse) | |
118 | { | |
119 | struct synaptics_data *priv = psmouse->private; | |
120 | unsigned char mi[3]; | |
121 | ||
122 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) | |
123 | return -1; | |
124 | priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; | |
125 | return 0; | |
126 | } | |
127 | ||
128 | /* | |
129 | * Read the capability-bits from the touchpad | |
130 | * see also the SYN_CAP_* macros | |
131 | */ | |
132 | static int synaptics_capability(struct psmouse *psmouse) | |
133 | { | |
134 | struct synaptics_data *priv = psmouse->private; | |
135 | unsigned char cap[3]; | |
136 | ||
137 | if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) | |
138 | return -1; | |
139 | priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
140 | priv->ext_cap = 0; | |
141 | if (!SYN_CAP_VALID(priv->capabilities)) | |
142 | return -1; | |
143 | ||
144 | /* | |
145 | * Unless capExtended is set the rest of the flags should be ignored | |
146 | */ | |
147 | if (!SYN_CAP_EXTENDED(priv->capabilities)) | |
148 | priv->capabilities = 0; | |
149 | ||
150 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { | |
151 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { | |
152 | printk(KERN_ERR "Synaptics claims to have extended capabilities," | |
153 | " but I'm not able to read them."); | |
154 | } else { | |
155 | priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
156 | ||
157 | /* | |
158 | * if nExtBtn is greater than 8 it should be considered | |
159 | * invalid and treated as 0 | |
160 | */ | |
161 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) | |
162 | priv->ext_cap &= 0xff0fff; | |
163 | } | |
164 | } | |
165 | return 0; | |
166 | } | |
167 | ||
168 | /* | |
169 | * Identify Touchpad | |
170 | * See also the SYN_ID_* macros | |
171 | */ | |
172 | static int synaptics_identify(struct psmouse *psmouse) | |
173 | { | |
174 | struct synaptics_data *priv = psmouse->private; | |
175 | unsigned char id[3]; | |
176 | ||
177 | if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) | |
178 | return -1; | |
179 | priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; | |
180 | if (SYN_ID_IS_SYNAPTICS(priv->identity)) | |
181 | return 0; | |
182 | return -1; | |
183 | } | |
184 | ||
ec20a022 TS |
185 | /* |
186 | * Read touchpad resolution | |
187 | * Resolution is left zero if touchpad does not support the query | |
188 | */ | |
189 | static int synaptics_resolution(struct psmouse *psmouse) | |
190 | { | |
191 | struct synaptics_data *priv = psmouse->private; | |
192 | unsigned char res[3]; | |
193 | ||
194 | if (SYN_ID_MAJOR(priv->identity) < 4) | |
195 | return 0; | |
196 | ||
197 | if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, res)) | |
198 | return 0; | |
199 | ||
200 | if ((res[0] != 0) && (res[1] & 0x80) && (res[2] != 0)) { | |
201 | priv->x_res = res[0]; /* x resolution in units/mm */ | |
202 | priv->y_res = res[2]; /* y resolution in units/mm */ | |
203 | } | |
204 | ||
205 | return 0; | |
206 | } | |
207 | ||
1da177e4 LT |
208 | static int synaptics_query_hardware(struct psmouse *psmouse) |
209 | { | |
1da177e4 LT |
210 | if (synaptics_identify(psmouse)) |
211 | return -1; | |
212 | if (synaptics_model_id(psmouse)) | |
213 | return -1; | |
214 | if (synaptics_capability(psmouse)) | |
215 | return -1; | |
ec20a022 TS |
216 | if (synaptics_resolution(psmouse)) |
217 | return -1; | |
1da177e4 LT |
218 | |
219 | return 0; | |
220 | } | |
221 | ||
222 | static int synaptics_set_absolute_mode(struct psmouse *psmouse) | |
223 | { | |
224 | struct synaptics_data *priv = psmouse->private; | |
225 | ||
226 | priv->mode = SYN_BIT_ABSOLUTE_MODE; | |
227 | if (SYN_ID_MAJOR(priv->identity) >= 4) | |
228 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
229 | if (SYN_CAP_EXTENDED(priv->capabilities)) | |
230 | priv->mode |= SYN_BIT_W_MODE; | |
231 | ||
232 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
233 | return -1; | |
234 | ||
235 | return 0; | |
236 | } | |
237 | ||
238 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
239 | { | |
240 | struct synaptics_data *priv = psmouse->private; | |
241 | ||
242 | if (rate >= 80) { | |
243 | priv->mode |= SYN_BIT_HIGH_RATE; | |
244 | psmouse->rate = 80; | |
245 | } else { | |
246 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
247 | psmouse->rate = 40; | |
248 | } | |
249 | ||
250 | synaptics_mode_cmd(psmouse, priv->mode); | |
251 | } | |
252 | ||
253 | /***************************************************************************** | |
254 | * Synaptics pass-through PS/2 port support | |
255 | ****************************************************************************/ | |
256 | static int synaptics_pt_write(struct serio *serio, unsigned char c) | |
257 | { | |
258 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
259 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ | |
260 | ||
261 | if (psmouse_sliced_command(parent, c)) | |
262 | return -1; | |
263 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) | |
264 | return -1; | |
265 | return 0; | |
266 | } | |
267 | ||
268 | static inline int synaptics_is_pt_packet(unsigned char *buf) | |
269 | { | |
270 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
271 | } | |
272 | ||
273 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) | |
274 | { | |
275 | struct psmouse *child = serio_get_drvdata(ptport); | |
276 | ||
277 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
7d12e780 DH |
278 | serio_interrupt(ptport, packet[1], 0); |
279 | serio_interrupt(ptport, packet[4], 0); | |
280 | serio_interrupt(ptport, packet[5], 0); | |
33fdfa97 | 281 | if (child->pktsize == 4) |
7d12e780 | 282 | serio_interrupt(ptport, packet[2], 0); |
1da177e4 | 283 | } else |
7d12e780 | 284 | serio_interrupt(ptport, packet[1], 0); |
1da177e4 LT |
285 | } |
286 | ||
287 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
288 | { | |
289 | struct serio *ptport = psmouse->ps2dev.serio->child; | |
290 | struct psmouse *child = serio_get_drvdata(ptport); | |
291 | struct synaptics_data *priv = psmouse->private; | |
292 | ||
293 | /* adjust the touchpad to child's choice of protocol */ | |
294 | if (child) { | |
33fdfa97 | 295 | if (child->pktsize == 4) |
1da177e4 LT |
296 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
297 | else | |
298 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
299 | ||
300 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
301 | printk(KERN_INFO "synaptics: failed to switch guest protocol\n"); | |
302 | } | |
303 | } | |
304 | ||
305 | static void synaptics_pt_create(struct psmouse *psmouse) | |
306 | { | |
307 | struct serio *serio; | |
308 | ||
b39787a9 | 309 | serio = kzalloc(sizeof(struct serio), GFP_KERNEL); |
1da177e4 LT |
310 | if (!serio) { |
311 | printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n"); | |
312 | return; | |
313 | } | |
314 | ||
1da177e4 LT |
315 | serio->id.type = SERIO_PS_PSTHRU; |
316 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); | |
317 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); | |
318 | serio->write = synaptics_pt_write; | |
319 | serio->parent = psmouse->ps2dev.serio; | |
320 | ||
321 | psmouse->pt_activate = synaptics_pt_activate; | |
322 | ||
323 | printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys); | |
324 | serio_register_port(serio); | |
325 | } | |
326 | ||
327 | /***************************************************************************** | |
328 | * Functions to interpret the absolute mode packets | |
329 | ****************************************************************************/ | |
330 | ||
331 | static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw) | |
332 | { | |
333 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
334 | ||
335 | if (SYN_MODEL_NEWABS(priv->model_id)) { | |
336 | hw->x = (((buf[3] & 0x10) << 8) | | |
337 | ((buf[1] & 0x0f) << 8) | | |
338 | buf[4]); | |
339 | hw->y = (((buf[3] & 0x20) << 7) | | |
340 | ((buf[1] & 0xf0) << 4) | | |
341 | buf[5]); | |
342 | ||
343 | hw->z = buf[2]; | |
344 | hw->w = (((buf[0] & 0x30) >> 2) | | |
345 | ((buf[0] & 0x04) >> 1) | | |
346 | ((buf[3] & 0x04) >> 2)); | |
347 | ||
348 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
349 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
350 | ||
351 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
352 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
353 | if (hw->w == 2) | |
354 | hw->scroll = (signed char)(buf[1]); | |
355 | } | |
356 | ||
357 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
358 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
359 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
360 | } | |
361 | ||
362 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && | |
363 | ((buf[0] ^ buf[3]) & 0x02)) { | |
364 | switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { | |
365 | default: | |
366 | /* | |
367 | * if nExtBtn is greater than 8 it should be | |
368 | * considered invalid and treated as 0 | |
369 | */ | |
370 | break; | |
371 | case 8: | |
372 | hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; | |
373 | hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; | |
374 | case 6: | |
375 | hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; | |
376 | hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; | |
377 | case 4: | |
378 | hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; | |
379 | hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; | |
380 | case 2: | |
381 | hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; | |
382 | hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; | |
383 | } | |
384 | } | |
385 | } else { | |
386 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
387 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
388 | ||
389 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
390 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
391 | ||
392 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
393 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
394 | } | |
395 | } | |
396 | ||
397 | /* | |
398 | * called for each full received packet from the touchpad | |
399 | */ | |
400 | static void synaptics_process_packet(struct psmouse *psmouse) | |
401 | { | |
2e5b636b | 402 | struct input_dev *dev = psmouse->dev; |
1da177e4 LT |
403 | struct synaptics_data *priv = psmouse->private; |
404 | struct synaptics_hw_state hw; | |
405 | int num_fingers; | |
406 | int finger_width; | |
407 | int i; | |
408 | ||
409 | synaptics_parse_hw_state(psmouse->packet, priv, &hw); | |
410 | ||
411 | if (hw.scroll) { | |
412 | priv->scroll += hw.scroll; | |
413 | ||
414 | while (priv->scroll >= 4) { | |
415 | input_report_key(dev, BTN_BACK, !hw.down); | |
416 | input_sync(dev); | |
417 | input_report_key(dev, BTN_BACK, hw.down); | |
418 | input_sync(dev); | |
419 | priv->scroll -= 4; | |
420 | } | |
421 | while (priv->scroll <= -4) { | |
422 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
423 | input_sync(dev); | |
424 | input_report_key(dev, BTN_FORWARD, hw.up); | |
425 | input_sync(dev); | |
426 | priv->scroll += 4; | |
427 | } | |
428 | return; | |
429 | } | |
430 | ||
431 | if (hw.z > 0) { | |
432 | num_fingers = 1; | |
433 | finger_width = 5; | |
434 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
435 | switch (hw.w) { | |
436 | case 0 ... 1: | |
437 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
438 | num_fingers = hw.w + 2; | |
439 | break; | |
440 | case 2: | |
441 | if (SYN_MODEL_PEN(priv->model_id)) | |
442 | ; /* Nothing, treat a pen as a single finger */ | |
443 | break; | |
444 | case 4 ... 15: | |
445 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
446 | finger_width = hw.w; | |
447 | break; | |
448 | } | |
449 | } | |
450 | } else { | |
451 | num_fingers = 0; | |
452 | finger_width = 0; | |
453 | } | |
454 | ||
455 | /* Post events | |
456 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
457 | * absolute -> relative conversion | |
458 | */ | |
459 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
460 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
461 | ||
462 | if (hw.z > 0) { | |
463 | input_report_abs(dev, ABS_X, hw.x); | |
464 | input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y); | |
465 | } | |
466 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
467 | ||
468 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); | |
469 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); | |
1da177e4 LT |
470 | input_report_key(dev, BTN_LEFT, hw.left); |
471 | input_report_key(dev, BTN_RIGHT, hw.right); | |
472 | ||
e42b6646 PH |
473 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
474 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); | |
475 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); | |
476 | } | |
477 | ||
1da177e4 LT |
478 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
479 | input_report_key(dev, BTN_MIDDLE, hw.middle); | |
480 | ||
481 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
482 | input_report_key(dev, BTN_FORWARD, hw.up); | |
483 | input_report_key(dev, BTN_BACK, hw.down); | |
484 | } | |
485 | ||
486 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
487 | input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i)); | |
488 | ||
489 | input_sync(dev); | |
490 | } | |
491 | ||
492 | static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type) | |
493 | { | |
e38de678 HD |
494 | static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; |
495 | static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; | |
496 | static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; | |
497 | static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; | |
498 | static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; | |
1da177e4 LT |
499 | |
500 | if (idx < 0 || idx > 4) | |
501 | return 0; | |
502 | ||
503 | switch (pkt_type) { | |
504 | case SYN_NEWABS: | |
505 | case SYN_NEWABS_RELAXED: | |
506 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
507 | ||
508 | case SYN_NEWABS_STRICT: | |
509 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
510 | ||
511 | case SYN_OLDABS: | |
512 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
513 | ||
514 | default: | |
515 | printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type); | |
516 | return 0; | |
517 | } | |
518 | } | |
519 | ||
520 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) | |
521 | { | |
522 | int i; | |
523 | ||
524 | for (i = 0; i < 5; i++) | |
525 | if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) { | |
526 | printk(KERN_INFO "synaptics: using relaxed packet validation\n"); | |
527 | return SYN_NEWABS_RELAXED; | |
528 | } | |
529 | ||
530 | return SYN_NEWABS_STRICT; | |
531 | } | |
532 | ||
7d12e780 | 533 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) |
1da177e4 | 534 | { |
1da177e4 LT |
535 | struct synaptics_data *priv = psmouse->private; |
536 | ||
1da177e4 LT |
537 | if (psmouse->pktcnt >= 6) { /* Full packet received */ |
538 | if (unlikely(priv->pkt_type == SYN_NEWABS)) | |
539 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); | |
540 | ||
541 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) { | |
542 | if (psmouse->ps2dev.serio->child) | |
543 | synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet); | |
544 | } else | |
545 | synaptics_process_packet(psmouse); | |
546 | ||
547 | return PSMOUSE_FULL_PACKET; | |
548 | } | |
549 | ||
550 | return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ? | |
551 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; | |
552 | } | |
553 | ||
554 | /***************************************************************************** | |
555 | * Driver initialization/cleanup functions | |
556 | ****************************************************************************/ | |
557 | static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) | |
558 | { | |
559 | int i; | |
560 | ||
b7802c5c | 561 | __set_bit(EV_ABS, dev->evbit); |
1da177e4 LT |
562 | input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0); |
563 | input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0); | |
564 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); | |
b7802c5c | 565 | __set_bit(ABS_TOOL_WIDTH, dev->absbit); |
1da177e4 | 566 | |
b7802c5c DT |
567 | __set_bit(EV_KEY, dev->evbit); |
568 | __set_bit(BTN_TOUCH, dev->keybit); | |
569 | __set_bit(BTN_TOOL_FINGER, dev->keybit); | |
570 | __set_bit(BTN_LEFT, dev->keybit); | |
571 | __set_bit(BTN_RIGHT, dev->keybit); | |
1da177e4 | 572 | |
e42b6646 | 573 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
b7802c5c DT |
574 | __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); |
575 | __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); | |
e42b6646 PH |
576 | } |
577 | ||
1da177e4 | 578 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
b7802c5c | 579 | __set_bit(BTN_MIDDLE, dev->keybit); |
1da177e4 LT |
580 | |
581 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || | |
582 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
b7802c5c DT |
583 | __set_bit(BTN_FORWARD, dev->keybit); |
584 | __set_bit(BTN_BACK, dev->keybit); | |
1da177e4 LT |
585 | } |
586 | ||
587 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
b7802c5c | 588 | __set_bit(BTN_0 + i, dev->keybit); |
1da177e4 | 589 | |
b7802c5c DT |
590 | __clear_bit(EV_REL, dev->evbit); |
591 | __clear_bit(REL_X, dev->relbit); | |
592 | __clear_bit(REL_Y, dev->relbit); | |
ec20a022 TS |
593 | |
594 | dev->absres[ABS_X] = priv->x_res; | |
595 | dev->absres[ABS_Y] = priv->y_res; | |
1da177e4 LT |
596 | } |
597 | ||
1da177e4 LT |
598 | static void synaptics_disconnect(struct psmouse *psmouse) |
599 | { | |
600 | synaptics_reset(psmouse); | |
601 | kfree(psmouse->private); | |
602 | psmouse->private = NULL; | |
603 | } | |
604 | ||
605 | static int synaptics_reconnect(struct psmouse *psmouse) | |
606 | { | |
607 | struct synaptics_data *priv = psmouse->private; | |
608 | struct synaptics_data old_priv = *priv; | |
609 | ||
4d368456 AW |
610 | psmouse_reset(psmouse); |
611 | ||
1da177e4 LT |
612 | if (synaptics_detect(psmouse, 0)) |
613 | return -1; | |
614 | ||
615 | if (synaptics_query_hardware(psmouse)) { | |
616 | printk(KERN_ERR "Unable to query Synaptics hardware.\n"); | |
617 | return -1; | |
618 | } | |
619 | ||
620 | if (old_priv.identity != priv->identity || | |
621 | old_priv.model_id != priv->model_id || | |
622 | old_priv.capabilities != priv->capabilities || | |
623 | old_priv.ext_cap != priv->ext_cap) | |
624 | return -1; | |
625 | ||
626 | if (synaptics_set_absolute_mode(psmouse)) { | |
627 | printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); | |
628 | return -1; | |
629 | } | |
630 | ||
631 | return 0; | |
632 | } | |
633 | ||
7705d548 DT |
634 | static bool impaired_toshiba_kbc; |
635 | ||
636 | static const struct dmi_system_id __initconst toshiba_dmi_table[] = { | |
637 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) | |
1da177e4 | 638 | { |
9961e259 | 639 | /* Toshiba Satellite */ |
1da177e4 LT |
640 | .matches = { |
641 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c | 642 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
1da177e4 LT |
643 | }, |
644 | }, | |
9ba5eaaf | 645 | { |
9961e259 | 646 | /* Toshiba Dynabook */ |
9ba5eaaf SH |
647 | .matches = { |
648 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c RT |
649 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), |
650 | }, | |
651 | }, | |
652 | { | |
9961e259 | 653 | /* Toshiba Portege M300 */ |
53a2670c RT |
654 | .matches = { |
655 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
656 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), | |
9ba5eaaf | 657 | }, |
5f5eeff4 DT |
658 | |
659 | }, | |
660 | { | |
9961e259 | 661 | /* Toshiba Portege M300 */ |
5f5eeff4 DT |
662 | .matches = { |
663 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
664 | DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), | |
665 | DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), | |
666 | }, | |
667 | ||
9ba5eaaf | 668 | }, |
1da177e4 | 669 | { } |
1da177e4 | 670 | #endif |
7705d548 DT |
671 | }; |
672 | ||
673 | void __init synaptics_module_init(void) | |
674 | { | |
675 | impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); | |
676 | } | |
1da177e4 LT |
677 | |
678 | int synaptics_init(struct psmouse *psmouse) | |
679 | { | |
680 | struct synaptics_data *priv; | |
681 | ||
b39787a9 | 682 | psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); |
1da177e4 LT |
683 | if (!priv) |
684 | return -1; | |
1da177e4 | 685 | |
4d368456 AW |
686 | psmouse_reset(psmouse); |
687 | ||
1da177e4 LT |
688 | if (synaptics_query_hardware(psmouse)) { |
689 | printk(KERN_ERR "Unable to query Synaptics hardware.\n"); | |
690 | goto init_fail; | |
691 | } | |
692 | ||
693 | if (synaptics_set_absolute_mode(psmouse)) { | |
694 | printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); | |
695 | goto init_fail; | |
696 | } | |
697 | ||
698 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; | |
699 | ||
409b7506 DT |
700 | printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx\n", |
701 | SYN_ID_MODEL(priv->identity), | |
702 | SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), | |
703 | priv->model_id, priv->capabilities, priv->ext_cap); | |
704 | ||
2e5b636b | 705 | set_input_params(psmouse->dev, priv); |
1da177e4 | 706 | |
887cc127 DT |
707 | /* |
708 | * Encode touchpad model so that it can be used to set | |
709 | * input device->id.version and be visible to userspace. | |
710 | * Because version is __u16 we have to drop something. | |
711 | * Hardware info bits seem to be good candidates as they | |
712 | * are documented to be for Synaptics corp. internal use. | |
713 | */ | |
714 | psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | | |
715 | (priv->model_id & 0x000000ff); | |
716 | ||
1da177e4 LT |
717 | psmouse->protocol_handler = synaptics_process_byte; |
718 | psmouse->set_rate = synaptics_set_rate; | |
719 | psmouse->disconnect = synaptics_disconnect; | |
720 | psmouse->reconnect = synaptics_reconnect; | |
a1cec061 | 721 | psmouse->cleanup = synaptics_reset; |
1da177e4 | 722 | psmouse->pktsize = 6; |
f0d5c6f4 DT |
723 | /* Synaptics can usually stay in sync without extra help */ |
724 | psmouse->resync_time = 0; | |
1da177e4 LT |
725 | |
726 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
727 | synaptics_pt_create(psmouse); | |
728 | ||
1da177e4 LT |
729 | /* |
730 | * Toshiba's KBC seems to have trouble handling data from | |
731 | * Synaptics as full rate, switch to lower rate which is roughly | |
732 | * thye same as rate of standard PS/2 mouse. | |
733 | */ | |
7705d548 | 734 | if (psmouse->rate >= 80 && impaired_toshiba_kbc) { |
9ba5eaaf SH |
735 | printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n", |
736 | dmi_get_system_info(DMI_PRODUCT_NAME)); | |
1da177e4 LT |
737 | psmouse->rate = 40; |
738 | } | |
1da177e4 LT |
739 | |
740 | return 0; | |
741 | ||
742 | init_fail: | |
743 | kfree(priv); | |
744 | return -1; | |
745 | } | |
746 | ||
e4e6efd2 DD |
747 | bool synaptics_supported(void) |
748 | { | |
749 | return true; | |
750 | } | |
751 | ||
55e3d922 AS |
752 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
753 | ||
7705d548 DT |
754 | void __init synaptics_module_init(void) |
755 | { | |
756 | } | |
757 | ||
55e3d922 AS |
758 | int synaptics_init(struct psmouse *psmouse) |
759 | { | |
760 | return -ENOSYS; | |
761 | } | |
762 | ||
e4e6efd2 DD |
763 | bool synaptics_supported(void) |
764 | { | |
765 | return false; | |
766 | } | |
767 | ||
55e3d922 | 768 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
1da177e4 | 769 |