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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> | |
27 | #include <linux/input.h> | |
28 | #include <linux/serio.h> | |
29 | #include <linux/libps2.h> | |
30 | #include "psmouse.h" | |
31 | #include "synaptics.h" | |
32 | ||
33 | /* | |
34 | * The x/y limits are taken from the Synaptics TouchPad interfacing Guide, | |
35 | * section 2.3.2, which says that they should be valid regardless of the | |
36 | * actual size of the sensor. | |
37 | */ | |
38 | #define XMIN_NOMINAL 1472 | |
39 | #define XMAX_NOMINAL 5472 | |
40 | #define YMIN_NOMINAL 1408 | |
41 | #define YMAX_NOMINAL 4448 | |
42 | ||
43 | /***************************************************************************** | |
44 | * Synaptics communications functions | |
45 | ****************************************************************************/ | |
46 | ||
47 | /* | |
48 | * Send a command to the synpatics touchpad by special commands | |
49 | */ | |
50 | static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) | |
51 | { | |
52 | if (psmouse_sliced_command(psmouse, c)) | |
53 | return -1; | |
54 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) | |
55 | return -1; | |
56 | return 0; | |
57 | } | |
58 | ||
59 | /* | |
60 | * Set the synaptics touchpad mode byte by special commands | |
61 | */ | |
62 | static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode) | |
63 | { | |
64 | unsigned char param[1]; | |
65 | ||
66 | if (psmouse_sliced_command(psmouse, mode)) | |
67 | return -1; | |
68 | param[0] = SYN_PS_SET_MODE2; | |
69 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE)) | |
70 | return -1; | |
71 | return 0; | |
72 | } | |
73 | ||
74 | /* | |
75 | * Read the model-id bytes from the touchpad | |
76 | * see also SYN_MODEL_* macros | |
77 | */ | |
78 | static int synaptics_model_id(struct psmouse *psmouse) | |
79 | { | |
80 | struct synaptics_data *priv = psmouse->private; | |
81 | unsigned char mi[3]; | |
82 | ||
83 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) | |
84 | return -1; | |
85 | priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; | |
86 | return 0; | |
87 | } | |
88 | ||
89 | /* | |
90 | * Read the capability-bits from the touchpad | |
91 | * see also the SYN_CAP_* macros | |
92 | */ | |
93 | static int synaptics_capability(struct psmouse *psmouse) | |
94 | { | |
95 | struct synaptics_data *priv = psmouse->private; | |
96 | unsigned char cap[3]; | |
97 | ||
98 | if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) | |
99 | return -1; | |
100 | priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
101 | priv->ext_cap = 0; | |
102 | if (!SYN_CAP_VALID(priv->capabilities)) | |
103 | return -1; | |
104 | ||
105 | /* | |
106 | * Unless capExtended is set the rest of the flags should be ignored | |
107 | */ | |
108 | if (!SYN_CAP_EXTENDED(priv->capabilities)) | |
109 | priv->capabilities = 0; | |
110 | ||
111 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { | |
112 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { | |
113 | printk(KERN_ERR "Synaptics claims to have extended capabilities," | |
114 | " but I'm not able to read them."); | |
115 | } else { | |
116 | priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
117 | ||
118 | /* | |
119 | * if nExtBtn is greater than 8 it should be considered | |
120 | * invalid and treated as 0 | |
121 | */ | |
122 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) | |
123 | priv->ext_cap &= 0xff0fff; | |
124 | } | |
125 | } | |
126 | return 0; | |
127 | } | |
128 | ||
129 | /* | |
130 | * Identify Touchpad | |
131 | * See also the SYN_ID_* macros | |
132 | */ | |
133 | static int synaptics_identify(struct psmouse *psmouse) | |
134 | { | |
135 | struct synaptics_data *priv = psmouse->private; | |
136 | unsigned char id[3]; | |
137 | ||
138 | if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) | |
139 | return -1; | |
140 | priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; | |
141 | if (SYN_ID_IS_SYNAPTICS(priv->identity)) | |
142 | return 0; | |
143 | return -1; | |
144 | } | |
145 | ||
146 | static void print_ident(struct synaptics_data *priv) | |
147 | { | |
148 | printk(KERN_INFO "Synaptics Touchpad, model: %ld\n", SYN_ID_MODEL(priv->identity)); | |
149 | printk(KERN_INFO " Firmware: %ld.%ld\n", SYN_ID_MAJOR(priv->identity), | |
150 | SYN_ID_MINOR(priv->identity)); | |
151 | if (SYN_MODEL_ROT180(priv->model_id)) | |
152 | printk(KERN_INFO " 180 degree mounted touchpad\n"); | |
153 | if (SYN_MODEL_PORTRAIT(priv->model_id)) | |
154 | printk(KERN_INFO " portrait touchpad\n"); | |
155 | printk(KERN_INFO " Sensor: %ld\n", SYN_MODEL_SENSOR(priv->model_id)); | |
156 | if (SYN_MODEL_NEWABS(priv->model_id)) | |
157 | printk(KERN_INFO " new absolute packet format\n"); | |
158 | if (SYN_MODEL_PEN(priv->model_id)) | |
159 | printk(KERN_INFO " pen detection\n"); | |
160 | ||
161 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
162 | printk(KERN_INFO " Touchpad has extended capability bits\n"); | |
163 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap)) | |
164 | printk(KERN_INFO " -> %d multi-buttons, i.e. besides standard buttons\n", | |
165 | (int)(SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap))); | |
166 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
167 | printk(KERN_INFO " -> middle button\n"); | |
168 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) | |
169 | printk(KERN_INFO " -> four buttons\n"); | |
170 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
171 | printk(KERN_INFO " -> multifinger detection\n"); | |
172 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
173 | printk(KERN_INFO " -> palm detection\n"); | |
174 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
175 | printk(KERN_INFO " -> pass-through port\n"); | |
176 | } | |
177 | } | |
178 | ||
179 | static int synaptics_query_hardware(struct psmouse *psmouse) | |
180 | { | |
181 | int retries = 0; | |
182 | ||
183 | while ((retries++ < 3) && psmouse_reset(psmouse)) | |
184 | printk(KERN_ERR "synaptics reset failed\n"); | |
185 | ||
186 | if (synaptics_identify(psmouse)) | |
187 | return -1; | |
188 | if (synaptics_model_id(psmouse)) | |
189 | return -1; | |
190 | if (synaptics_capability(psmouse)) | |
191 | return -1; | |
192 | ||
193 | return 0; | |
194 | } | |
195 | ||
196 | static int synaptics_set_absolute_mode(struct psmouse *psmouse) | |
197 | { | |
198 | struct synaptics_data *priv = psmouse->private; | |
199 | ||
200 | priv->mode = SYN_BIT_ABSOLUTE_MODE; | |
201 | if (SYN_ID_MAJOR(priv->identity) >= 4) | |
202 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
203 | if (SYN_CAP_EXTENDED(priv->capabilities)) | |
204 | priv->mode |= SYN_BIT_W_MODE; | |
205 | ||
206 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
207 | return -1; | |
208 | ||
209 | return 0; | |
210 | } | |
211 | ||
212 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
213 | { | |
214 | struct synaptics_data *priv = psmouse->private; | |
215 | ||
216 | if (rate >= 80) { | |
217 | priv->mode |= SYN_BIT_HIGH_RATE; | |
218 | psmouse->rate = 80; | |
219 | } else { | |
220 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
221 | psmouse->rate = 40; | |
222 | } | |
223 | ||
224 | synaptics_mode_cmd(psmouse, priv->mode); | |
225 | } | |
226 | ||
227 | /***************************************************************************** | |
228 | * Synaptics pass-through PS/2 port support | |
229 | ****************************************************************************/ | |
230 | static int synaptics_pt_write(struct serio *serio, unsigned char c) | |
231 | { | |
232 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
233 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ | |
234 | ||
235 | if (psmouse_sliced_command(parent, c)) | |
236 | return -1; | |
237 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) | |
238 | return -1; | |
239 | return 0; | |
240 | } | |
241 | ||
242 | static inline int synaptics_is_pt_packet(unsigned char *buf) | |
243 | { | |
244 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
245 | } | |
246 | ||
247 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) | |
248 | { | |
249 | struct psmouse *child = serio_get_drvdata(ptport); | |
250 | ||
251 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
252 | serio_interrupt(ptport, packet[1], 0, NULL); | |
253 | serio_interrupt(ptport, packet[4], 0, NULL); | |
254 | serio_interrupt(ptport, packet[5], 0, NULL); | |
255 | if (child->type >= PSMOUSE_GENPS) | |
256 | serio_interrupt(ptport, packet[2], 0, NULL); | |
257 | } else | |
258 | serio_interrupt(ptport, packet[1], 0, NULL); | |
259 | } | |
260 | ||
261 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
262 | { | |
263 | struct serio *ptport = psmouse->ps2dev.serio->child; | |
264 | struct psmouse *child = serio_get_drvdata(ptport); | |
265 | struct synaptics_data *priv = psmouse->private; | |
266 | ||
267 | /* adjust the touchpad to child's choice of protocol */ | |
268 | if (child) { | |
269 | if (child->type >= PSMOUSE_GENPS) | |
270 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; | |
271 | else | |
272 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
273 | ||
274 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
275 | printk(KERN_INFO "synaptics: failed to switch guest protocol\n"); | |
276 | } | |
277 | } | |
278 | ||
279 | static void synaptics_pt_create(struct psmouse *psmouse) | |
280 | { | |
281 | struct serio *serio; | |
282 | ||
283 | serio = kmalloc(sizeof(struct serio), GFP_KERNEL); | |
284 | if (!serio) { | |
285 | printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n"); | |
286 | return; | |
287 | } | |
288 | ||
289 | memset(serio, 0, sizeof(struct serio)); | |
290 | ||
291 | serio->id.type = SERIO_PS_PSTHRU; | |
292 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); | |
293 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); | |
294 | serio->write = synaptics_pt_write; | |
295 | serio->parent = psmouse->ps2dev.serio; | |
296 | ||
297 | psmouse->pt_activate = synaptics_pt_activate; | |
298 | ||
299 | printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys); | |
300 | serio_register_port(serio); | |
301 | } | |
302 | ||
303 | /***************************************************************************** | |
304 | * Functions to interpret the absolute mode packets | |
305 | ****************************************************************************/ | |
306 | ||
307 | static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw) | |
308 | { | |
309 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
310 | ||
311 | if (SYN_MODEL_NEWABS(priv->model_id)) { | |
312 | hw->x = (((buf[3] & 0x10) << 8) | | |
313 | ((buf[1] & 0x0f) << 8) | | |
314 | buf[4]); | |
315 | hw->y = (((buf[3] & 0x20) << 7) | | |
316 | ((buf[1] & 0xf0) << 4) | | |
317 | buf[5]); | |
318 | ||
319 | hw->z = buf[2]; | |
320 | hw->w = (((buf[0] & 0x30) >> 2) | | |
321 | ((buf[0] & 0x04) >> 1) | | |
322 | ((buf[3] & 0x04) >> 2)); | |
323 | ||
324 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
325 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
326 | ||
327 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
328 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
329 | if (hw->w == 2) | |
330 | hw->scroll = (signed char)(buf[1]); | |
331 | } | |
332 | ||
333 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
334 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
335 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
336 | } | |
337 | ||
338 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && | |
339 | ((buf[0] ^ buf[3]) & 0x02)) { | |
340 | switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { | |
341 | default: | |
342 | /* | |
343 | * if nExtBtn is greater than 8 it should be | |
344 | * considered invalid and treated as 0 | |
345 | */ | |
346 | break; | |
347 | case 8: | |
348 | hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; | |
349 | hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; | |
350 | case 6: | |
351 | hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; | |
352 | hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; | |
353 | case 4: | |
354 | hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; | |
355 | hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; | |
356 | case 2: | |
357 | hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; | |
358 | hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; | |
359 | } | |
360 | } | |
361 | } else { | |
362 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
363 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
364 | ||
365 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
366 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
367 | ||
368 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
369 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
370 | } | |
371 | } | |
372 | ||
373 | /* | |
374 | * called for each full received packet from the touchpad | |
375 | */ | |
376 | static void synaptics_process_packet(struct psmouse *psmouse) | |
377 | { | |
378 | struct input_dev *dev = &psmouse->dev; | |
379 | struct synaptics_data *priv = psmouse->private; | |
380 | struct synaptics_hw_state hw; | |
381 | int num_fingers; | |
382 | int finger_width; | |
383 | int i; | |
384 | ||
385 | synaptics_parse_hw_state(psmouse->packet, priv, &hw); | |
386 | ||
387 | if (hw.scroll) { | |
388 | priv->scroll += hw.scroll; | |
389 | ||
390 | while (priv->scroll >= 4) { | |
391 | input_report_key(dev, BTN_BACK, !hw.down); | |
392 | input_sync(dev); | |
393 | input_report_key(dev, BTN_BACK, hw.down); | |
394 | input_sync(dev); | |
395 | priv->scroll -= 4; | |
396 | } | |
397 | while (priv->scroll <= -4) { | |
398 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
399 | input_sync(dev); | |
400 | input_report_key(dev, BTN_FORWARD, hw.up); | |
401 | input_sync(dev); | |
402 | priv->scroll += 4; | |
403 | } | |
404 | return; | |
405 | } | |
406 | ||
407 | if (hw.z > 0) { | |
408 | num_fingers = 1; | |
409 | finger_width = 5; | |
410 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
411 | switch (hw.w) { | |
412 | case 0 ... 1: | |
413 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
414 | num_fingers = hw.w + 2; | |
415 | break; | |
416 | case 2: | |
417 | if (SYN_MODEL_PEN(priv->model_id)) | |
418 | ; /* Nothing, treat a pen as a single finger */ | |
419 | break; | |
420 | case 4 ... 15: | |
421 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
422 | finger_width = hw.w; | |
423 | break; | |
424 | } | |
425 | } | |
426 | } else { | |
427 | num_fingers = 0; | |
428 | finger_width = 0; | |
429 | } | |
430 | ||
431 | /* Post events | |
432 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
433 | * absolute -> relative conversion | |
434 | */ | |
435 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
436 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
437 | ||
438 | if (hw.z > 0) { | |
439 | input_report_abs(dev, ABS_X, hw.x); | |
440 | input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y); | |
441 | } | |
442 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
443 | ||
444 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); | |
445 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); | |
446 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); | |
447 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); | |
448 | ||
449 | input_report_key(dev, BTN_LEFT, hw.left); | |
450 | input_report_key(dev, BTN_RIGHT, hw.right); | |
451 | ||
452 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
453 | input_report_key(dev, BTN_MIDDLE, hw.middle); | |
454 | ||
455 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
456 | input_report_key(dev, BTN_FORWARD, hw.up); | |
457 | input_report_key(dev, BTN_BACK, hw.down); | |
458 | } | |
459 | ||
460 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
461 | input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i)); | |
462 | ||
463 | input_sync(dev); | |
464 | } | |
465 | ||
466 | static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type) | |
467 | { | |
468 | static unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; | |
469 | static unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; | |
470 | static unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; | |
471 | static unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; | |
472 | static unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; | |
473 | ||
474 | if (idx < 0 || idx > 4) | |
475 | return 0; | |
476 | ||
477 | switch (pkt_type) { | |
478 | case SYN_NEWABS: | |
479 | case SYN_NEWABS_RELAXED: | |
480 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
481 | ||
482 | case SYN_NEWABS_STRICT: | |
483 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
484 | ||
485 | case SYN_OLDABS: | |
486 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
487 | ||
488 | default: | |
489 | printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type); | |
490 | return 0; | |
491 | } | |
492 | } | |
493 | ||
494 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) | |
495 | { | |
496 | int i; | |
497 | ||
498 | for (i = 0; i < 5; i++) | |
499 | if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) { | |
500 | printk(KERN_INFO "synaptics: using relaxed packet validation\n"); | |
501 | return SYN_NEWABS_RELAXED; | |
502 | } | |
503 | ||
504 | return SYN_NEWABS_STRICT; | |
505 | } | |
506 | ||
507 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse, struct pt_regs *regs) | |
508 | { | |
509 | struct input_dev *dev = &psmouse->dev; | |
510 | struct synaptics_data *priv = psmouse->private; | |
511 | ||
512 | input_regs(dev, regs); | |
513 | ||
514 | if (psmouse->pktcnt >= 6) { /* Full packet received */ | |
515 | if (unlikely(priv->pkt_type == SYN_NEWABS)) | |
516 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); | |
517 | ||
518 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) { | |
519 | if (psmouse->ps2dev.serio->child) | |
520 | synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet); | |
521 | } else | |
522 | synaptics_process_packet(psmouse); | |
523 | ||
524 | return PSMOUSE_FULL_PACKET; | |
525 | } | |
526 | ||
527 | return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ? | |
528 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; | |
529 | } | |
530 | ||
531 | /***************************************************************************** | |
532 | * Driver initialization/cleanup functions | |
533 | ****************************************************************************/ | |
534 | static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) | |
535 | { | |
536 | int i; | |
537 | ||
538 | set_bit(EV_ABS, dev->evbit); | |
539 | input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0); | |
540 | input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0); | |
541 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); | |
542 | set_bit(ABS_TOOL_WIDTH, dev->absbit); | |
543 | ||
544 | set_bit(EV_KEY, dev->evbit); | |
545 | set_bit(BTN_TOUCH, dev->keybit); | |
546 | set_bit(BTN_TOOL_FINGER, dev->keybit); | |
547 | set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); | |
548 | set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); | |
549 | ||
550 | set_bit(BTN_LEFT, dev->keybit); | |
551 | set_bit(BTN_RIGHT, dev->keybit); | |
552 | ||
553 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
554 | set_bit(BTN_MIDDLE, dev->keybit); | |
555 | ||
556 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || | |
557 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
558 | set_bit(BTN_FORWARD, dev->keybit); | |
559 | set_bit(BTN_BACK, dev->keybit); | |
560 | } | |
561 | ||
562 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
563 | set_bit(BTN_0 + i, dev->keybit); | |
564 | ||
565 | clear_bit(EV_REL, dev->evbit); | |
566 | clear_bit(REL_X, dev->relbit); | |
567 | clear_bit(REL_Y, dev->relbit); | |
568 | } | |
569 | ||
570 | void synaptics_reset(struct psmouse *psmouse) | |
571 | { | |
572 | /* reset touchpad back to relative mode, gestures enabled */ | |
573 | synaptics_mode_cmd(psmouse, 0); | |
574 | } | |
575 | ||
576 | static void synaptics_disconnect(struct psmouse *psmouse) | |
577 | { | |
578 | synaptics_reset(psmouse); | |
579 | kfree(psmouse->private); | |
580 | psmouse->private = NULL; | |
581 | } | |
582 | ||
583 | static int synaptics_reconnect(struct psmouse *psmouse) | |
584 | { | |
585 | struct synaptics_data *priv = psmouse->private; | |
586 | struct synaptics_data old_priv = *priv; | |
587 | ||
588 | if (synaptics_detect(psmouse, 0)) | |
589 | return -1; | |
590 | ||
591 | if (synaptics_query_hardware(psmouse)) { | |
592 | printk(KERN_ERR "Unable to query Synaptics hardware.\n"); | |
593 | return -1; | |
594 | } | |
595 | ||
596 | if (old_priv.identity != priv->identity || | |
597 | old_priv.model_id != priv->model_id || | |
598 | old_priv.capabilities != priv->capabilities || | |
599 | old_priv.ext_cap != priv->ext_cap) | |
600 | return -1; | |
601 | ||
602 | if (synaptics_set_absolute_mode(psmouse)) { | |
603 | printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); | |
604 | return -1; | |
605 | } | |
606 | ||
607 | return 0; | |
608 | } | |
609 | ||
610 | int synaptics_detect(struct psmouse *psmouse, int set_properties) | |
611 | { | |
612 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
613 | unsigned char param[4]; | |
614 | ||
615 | param[0] = 0; | |
616 | ||
617 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
618 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
619 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
620 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
621 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); | |
622 | ||
623 | if (param[1] != 0x47) | |
624 | return -1; | |
625 | ||
626 | if (set_properties) { | |
627 | psmouse->vendor = "Synaptics"; | |
628 | psmouse->name = "TouchPad"; | |
629 | } | |
630 | ||
631 | return 0; | |
632 | } | |
633 | ||
634 | #if defined(__i386__) | |
635 | #include <linux/dmi.h> | |
636 | static struct dmi_system_id toshiba_dmi_table[] = { | |
637 | { | |
638 | .ident = "Toshiba Satellite", | |
639 | .matches = { | |
640 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
641 | DMI_MATCH(DMI_PRODUCT_NAME , "Satellite"), | |
642 | }, | |
643 | }, | |
644 | { } | |
645 | }; | |
646 | #endif | |
647 | ||
648 | int synaptics_init(struct psmouse *psmouse) | |
649 | { | |
650 | struct synaptics_data *priv; | |
651 | ||
652 | psmouse->private = priv = kmalloc(sizeof(struct synaptics_data), GFP_KERNEL); | |
653 | if (!priv) | |
654 | return -1; | |
655 | memset(priv, 0, sizeof(struct synaptics_data)); | |
656 | ||
657 | if (synaptics_query_hardware(psmouse)) { | |
658 | printk(KERN_ERR "Unable to query Synaptics hardware.\n"); | |
659 | goto init_fail; | |
660 | } | |
661 | ||
662 | if (synaptics_set_absolute_mode(psmouse)) { | |
663 | printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); | |
664 | goto init_fail; | |
665 | } | |
666 | ||
667 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; | |
668 | ||
669 | print_ident(priv); | |
670 | set_input_params(&psmouse->dev, priv); | |
671 | ||
672 | psmouse->protocol_handler = synaptics_process_byte; | |
673 | psmouse->set_rate = synaptics_set_rate; | |
674 | psmouse->disconnect = synaptics_disconnect; | |
675 | psmouse->reconnect = synaptics_reconnect; | |
676 | psmouse->pktsize = 6; | |
677 | ||
678 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
679 | synaptics_pt_create(psmouse); | |
680 | ||
681 | #if defined(__i386__) | |
682 | /* | |
683 | * Toshiba's KBC seems to have trouble handling data from | |
684 | * Synaptics as full rate, switch to lower rate which is roughly | |
685 | * thye same as rate of standard PS/2 mouse. | |
686 | */ | |
687 | if (psmouse->rate >= 80 && dmi_check_system(toshiba_dmi_table)) { | |
688 | printk(KERN_INFO "synaptics: Toshiba Satellite detected, limiting rate to 40pps.\n"); | |
689 | psmouse->rate = 40; | |
690 | } | |
691 | #endif | |
692 | ||
693 | return 0; | |
694 | ||
695 | init_fail: | |
696 | kfree(priv); | |
697 | return -1; | |
698 | } | |
699 | ||
700 |