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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 | ||
1da177e4 LT |
146 | static int synaptics_query_hardware(struct psmouse *psmouse) |
147 | { | |
148 | int retries = 0; | |
149 | ||
150 | while ((retries++ < 3) && psmouse_reset(psmouse)) | |
151 | printk(KERN_ERR "synaptics reset failed\n"); | |
152 | ||
153 | if (synaptics_identify(psmouse)) | |
154 | return -1; | |
155 | if (synaptics_model_id(psmouse)) | |
156 | return -1; | |
157 | if (synaptics_capability(psmouse)) | |
158 | return -1; | |
159 | ||
160 | return 0; | |
161 | } | |
162 | ||
163 | static int synaptics_set_absolute_mode(struct psmouse *psmouse) | |
164 | { | |
165 | struct synaptics_data *priv = psmouse->private; | |
166 | ||
167 | priv->mode = SYN_BIT_ABSOLUTE_MODE; | |
168 | if (SYN_ID_MAJOR(priv->identity) >= 4) | |
169 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
170 | if (SYN_CAP_EXTENDED(priv->capabilities)) | |
171 | priv->mode |= SYN_BIT_W_MODE; | |
172 | ||
173 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
174 | return -1; | |
175 | ||
176 | return 0; | |
177 | } | |
178 | ||
179 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
180 | { | |
181 | struct synaptics_data *priv = psmouse->private; | |
182 | ||
183 | if (rate >= 80) { | |
184 | priv->mode |= SYN_BIT_HIGH_RATE; | |
185 | psmouse->rate = 80; | |
186 | } else { | |
187 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
188 | psmouse->rate = 40; | |
189 | } | |
190 | ||
191 | synaptics_mode_cmd(psmouse, priv->mode); | |
192 | } | |
193 | ||
194 | /***************************************************************************** | |
195 | * Synaptics pass-through PS/2 port support | |
196 | ****************************************************************************/ | |
197 | static int synaptics_pt_write(struct serio *serio, unsigned char c) | |
198 | { | |
199 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
200 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ | |
201 | ||
202 | if (psmouse_sliced_command(parent, c)) | |
203 | return -1; | |
204 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) | |
205 | return -1; | |
206 | return 0; | |
207 | } | |
208 | ||
209 | static inline int synaptics_is_pt_packet(unsigned char *buf) | |
210 | { | |
211 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
212 | } | |
213 | ||
214 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) | |
215 | { | |
216 | struct psmouse *child = serio_get_drvdata(ptport); | |
217 | ||
218 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
219 | serio_interrupt(ptport, packet[1], 0, NULL); | |
220 | serio_interrupt(ptport, packet[4], 0, NULL); | |
221 | serio_interrupt(ptport, packet[5], 0, NULL); | |
33fdfa97 | 222 | if (child->pktsize == 4) |
1da177e4 LT |
223 | serio_interrupt(ptport, packet[2], 0, NULL); |
224 | } else | |
225 | serio_interrupt(ptport, packet[1], 0, NULL); | |
226 | } | |
227 | ||
228 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
229 | { | |
230 | struct serio *ptport = psmouse->ps2dev.serio->child; | |
231 | struct psmouse *child = serio_get_drvdata(ptport); | |
232 | struct synaptics_data *priv = psmouse->private; | |
233 | ||
234 | /* adjust the touchpad to child's choice of protocol */ | |
235 | if (child) { | |
33fdfa97 | 236 | if (child->pktsize == 4) |
1da177e4 LT |
237 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
238 | else | |
239 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
240 | ||
241 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
242 | printk(KERN_INFO "synaptics: failed to switch guest protocol\n"); | |
243 | } | |
244 | } | |
245 | ||
246 | static void synaptics_pt_create(struct psmouse *psmouse) | |
247 | { | |
248 | struct serio *serio; | |
249 | ||
250 | serio = kmalloc(sizeof(struct serio), GFP_KERNEL); | |
251 | if (!serio) { | |
252 | printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n"); | |
253 | return; | |
254 | } | |
255 | ||
256 | memset(serio, 0, sizeof(struct serio)); | |
257 | ||
258 | serio->id.type = SERIO_PS_PSTHRU; | |
259 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); | |
260 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); | |
261 | serio->write = synaptics_pt_write; | |
262 | serio->parent = psmouse->ps2dev.serio; | |
263 | ||
264 | psmouse->pt_activate = synaptics_pt_activate; | |
265 | ||
266 | printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys); | |
267 | serio_register_port(serio); | |
268 | } | |
269 | ||
270 | /***************************************************************************** | |
271 | * Functions to interpret the absolute mode packets | |
272 | ****************************************************************************/ | |
273 | ||
274 | static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw) | |
275 | { | |
276 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
277 | ||
278 | if (SYN_MODEL_NEWABS(priv->model_id)) { | |
279 | hw->x = (((buf[3] & 0x10) << 8) | | |
280 | ((buf[1] & 0x0f) << 8) | | |
281 | buf[4]); | |
282 | hw->y = (((buf[3] & 0x20) << 7) | | |
283 | ((buf[1] & 0xf0) << 4) | | |
284 | buf[5]); | |
285 | ||
286 | hw->z = buf[2]; | |
287 | hw->w = (((buf[0] & 0x30) >> 2) | | |
288 | ((buf[0] & 0x04) >> 1) | | |
289 | ((buf[3] & 0x04) >> 2)); | |
290 | ||
291 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
292 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
293 | ||
294 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
295 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
296 | if (hw->w == 2) | |
297 | hw->scroll = (signed char)(buf[1]); | |
298 | } | |
299 | ||
300 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
301 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
302 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
303 | } | |
304 | ||
305 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && | |
306 | ((buf[0] ^ buf[3]) & 0x02)) { | |
307 | switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { | |
308 | default: | |
309 | /* | |
310 | * if nExtBtn is greater than 8 it should be | |
311 | * considered invalid and treated as 0 | |
312 | */ | |
313 | break; | |
314 | case 8: | |
315 | hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; | |
316 | hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; | |
317 | case 6: | |
318 | hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; | |
319 | hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; | |
320 | case 4: | |
321 | hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; | |
322 | hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; | |
323 | case 2: | |
324 | hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; | |
325 | hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; | |
326 | } | |
327 | } | |
328 | } else { | |
329 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
330 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
331 | ||
332 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
333 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
334 | ||
335 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
336 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
337 | } | |
338 | } | |
339 | ||
340 | /* | |
341 | * called for each full received packet from the touchpad | |
342 | */ | |
343 | static void synaptics_process_packet(struct psmouse *psmouse) | |
344 | { | |
345 | struct input_dev *dev = &psmouse->dev; | |
346 | struct synaptics_data *priv = psmouse->private; | |
347 | struct synaptics_hw_state hw; | |
348 | int num_fingers; | |
349 | int finger_width; | |
350 | int i; | |
351 | ||
352 | synaptics_parse_hw_state(psmouse->packet, priv, &hw); | |
353 | ||
354 | if (hw.scroll) { | |
355 | priv->scroll += hw.scroll; | |
356 | ||
357 | while (priv->scroll >= 4) { | |
358 | input_report_key(dev, BTN_BACK, !hw.down); | |
359 | input_sync(dev); | |
360 | input_report_key(dev, BTN_BACK, hw.down); | |
361 | input_sync(dev); | |
362 | priv->scroll -= 4; | |
363 | } | |
364 | while (priv->scroll <= -4) { | |
365 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
366 | input_sync(dev); | |
367 | input_report_key(dev, BTN_FORWARD, hw.up); | |
368 | input_sync(dev); | |
369 | priv->scroll += 4; | |
370 | } | |
371 | return; | |
372 | } | |
373 | ||
374 | if (hw.z > 0) { | |
375 | num_fingers = 1; | |
376 | finger_width = 5; | |
377 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
378 | switch (hw.w) { | |
379 | case 0 ... 1: | |
380 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
381 | num_fingers = hw.w + 2; | |
382 | break; | |
383 | case 2: | |
384 | if (SYN_MODEL_PEN(priv->model_id)) | |
385 | ; /* Nothing, treat a pen as a single finger */ | |
386 | break; | |
387 | case 4 ... 15: | |
388 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
389 | finger_width = hw.w; | |
390 | break; | |
391 | } | |
392 | } | |
393 | } else { | |
394 | num_fingers = 0; | |
395 | finger_width = 0; | |
396 | } | |
397 | ||
398 | /* Post events | |
399 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
400 | * absolute -> relative conversion | |
401 | */ | |
402 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
403 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
404 | ||
405 | if (hw.z > 0) { | |
406 | input_report_abs(dev, ABS_X, hw.x); | |
407 | input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y); | |
408 | } | |
409 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
410 | ||
411 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); | |
412 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); | |
413 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); | |
414 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); | |
415 | ||
416 | input_report_key(dev, BTN_LEFT, hw.left); | |
417 | input_report_key(dev, BTN_RIGHT, hw.right); | |
418 | ||
419 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
420 | input_report_key(dev, BTN_MIDDLE, hw.middle); | |
421 | ||
422 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
423 | input_report_key(dev, BTN_FORWARD, hw.up); | |
424 | input_report_key(dev, BTN_BACK, hw.down); | |
425 | } | |
426 | ||
427 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
428 | input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i)); | |
429 | ||
430 | input_sync(dev); | |
431 | } | |
432 | ||
433 | static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type) | |
434 | { | |
435 | static unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; | |
436 | static unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; | |
437 | static unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; | |
438 | static unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; | |
439 | static unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; | |
440 | ||
441 | if (idx < 0 || idx > 4) | |
442 | return 0; | |
443 | ||
444 | switch (pkt_type) { | |
445 | case SYN_NEWABS: | |
446 | case SYN_NEWABS_RELAXED: | |
447 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
448 | ||
449 | case SYN_NEWABS_STRICT: | |
450 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
451 | ||
452 | case SYN_OLDABS: | |
453 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
454 | ||
455 | default: | |
456 | printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type); | |
457 | return 0; | |
458 | } | |
459 | } | |
460 | ||
461 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) | |
462 | { | |
463 | int i; | |
464 | ||
465 | for (i = 0; i < 5; i++) | |
466 | if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) { | |
467 | printk(KERN_INFO "synaptics: using relaxed packet validation\n"); | |
468 | return SYN_NEWABS_RELAXED; | |
469 | } | |
470 | ||
471 | return SYN_NEWABS_STRICT; | |
472 | } | |
473 | ||
474 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse, struct pt_regs *regs) | |
475 | { | |
476 | struct input_dev *dev = &psmouse->dev; | |
477 | struct synaptics_data *priv = psmouse->private; | |
478 | ||
479 | input_regs(dev, regs); | |
480 | ||
481 | if (psmouse->pktcnt >= 6) { /* Full packet received */ | |
482 | if (unlikely(priv->pkt_type == SYN_NEWABS)) | |
483 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); | |
484 | ||
485 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) { | |
486 | if (psmouse->ps2dev.serio->child) | |
487 | synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet); | |
488 | } else | |
489 | synaptics_process_packet(psmouse); | |
490 | ||
491 | return PSMOUSE_FULL_PACKET; | |
492 | } | |
493 | ||
494 | return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ? | |
495 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; | |
496 | } | |
497 | ||
498 | /***************************************************************************** | |
499 | * Driver initialization/cleanup functions | |
500 | ****************************************************************************/ | |
501 | static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) | |
502 | { | |
503 | int i; | |
504 | ||
505 | set_bit(EV_ABS, dev->evbit); | |
506 | input_set_abs_params(dev, ABS_X, XMIN_NOMINAL, XMAX_NOMINAL, 0, 0); | |
507 | input_set_abs_params(dev, ABS_Y, YMIN_NOMINAL, YMAX_NOMINAL, 0, 0); | |
508 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); | |
509 | set_bit(ABS_TOOL_WIDTH, dev->absbit); | |
510 | ||
511 | set_bit(EV_KEY, dev->evbit); | |
512 | set_bit(BTN_TOUCH, dev->keybit); | |
513 | set_bit(BTN_TOOL_FINGER, dev->keybit); | |
514 | set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); | |
515 | set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); | |
516 | ||
517 | set_bit(BTN_LEFT, dev->keybit); | |
518 | set_bit(BTN_RIGHT, dev->keybit); | |
519 | ||
520 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) | |
521 | set_bit(BTN_MIDDLE, dev->keybit); | |
522 | ||
523 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || | |
524 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
525 | set_bit(BTN_FORWARD, dev->keybit); | |
526 | set_bit(BTN_BACK, dev->keybit); | |
527 | } | |
528 | ||
529 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
530 | set_bit(BTN_0 + i, dev->keybit); | |
531 | ||
532 | clear_bit(EV_REL, dev->evbit); | |
533 | clear_bit(REL_X, dev->relbit); | |
534 | clear_bit(REL_Y, dev->relbit); | |
535 | } | |
536 | ||
537 | void synaptics_reset(struct psmouse *psmouse) | |
538 | { | |
539 | /* reset touchpad back to relative mode, gestures enabled */ | |
540 | synaptics_mode_cmd(psmouse, 0); | |
541 | } | |
542 | ||
543 | static void synaptics_disconnect(struct psmouse *psmouse) | |
544 | { | |
545 | synaptics_reset(psmouse); | |
546 | kfree(psmouse->private); | |
547 | psmouse->private = NULL; | |
548 | } | |
549 | ||
550 | static int synaptics_reconnect(struct psmouse *psmouse) | |
551 | { | |
552 | struct synaptics_data *priv = psmouse->private; | |
553 | struct synaptics_data old_priv = *priv; | |
554 | ||
555 | if (synaptics_detect(psmouse, 0)) | |
556 | return -1; | |
557 | ||
558 | if (synaptics_query_hardware(psmouse)) { | |
559 | printk(KERN_ERR "Unable to query Synaptics hardware.\n"); | |
560 | return -1; | |
561 | } | |
562 | ||
563 | if (old_priv.identity != priv->identity || | |
564 | old_priv.model_id != priv->model_id || | |
565 | old_priv.capabilities != priv->capabilities || | |
566 | old_priv.ext_cap != priv->ext_cap) | |
567 | return -1; | |
568 | ||
569 | if (synaptics_set_absolute_mode(psmouse)) { | |
570 | printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); | |
571 | return -1; | |
572 | } | |
573 | ||
574 | return 0; | |
575 | } | |
576 | ||
577 | int synaptics_detect(struct psmouse *psmouse, int set_properties) | |
578 | { | |
579 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
580 | unsigned char param[4]; | |
581 | ||
582 | param[0] = 0; | |
583 | ||
584 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
585 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
586 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
587 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
588 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); | |
589 | ||
590 | if (param[1] != 0x47) | |
591 | return -1; | |
592 | ||
593 | if (set_properties) { | |
594 | psmouse->vendor = "Synaptics"; | |
595 | psmouse->name = "TouchPad"; | |
596 | } | |
597 | ||
598 | return 0; | |
599 | } | |
600 | ||
601 | #if defined(__i386__) | |
602 | #include <linux/dmi.h> | |
603 | static struct dmi_system_id toshiba_dmi_table[] = { | |
604 | { | |
605 | .ident = "Toshiba Satellite", | |
606 | .matches = { | |
607 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
608 | DMI_MATCH(DMI_PRODUCT_NAME , "Satellite"), | |
609 | }, | |
610 | }, | |
9ba5eaaf SH |
611 | { |
612 | .ident = "Toshiba Dynabook", | |
613 | .matches = { | |
614 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
615 | DMI_MATCH(DMI_PRODUCT_NAME , "dynabook"), | |
616 | }, | |
617 | }, | |
1da177e4 LT |
618 | { } |
619 | }; | |
620 | #endif | |
621 | ||
622 | int synaptics_init(struct psmouse *psmouse) | |
623 | { | |
624 | struct synaptics_data *priv; | |
625 | ||
626 | psmouse->private = priv = kmalloc(sizeof(struct synaptics_data), GFP_KERNEL); | |
627 | if (!priv) | |
628 | return -1; | |
629 | memset(priv, 0, sizeof(struct synaptics_data)); | |
630 | ||
631 | if (synaptics_query_hardware(psmouse)) { | |
632 | printk(KERN_ERR "Unable to query Synaptics hardware.\n"); | |
633 | goto init_fail; | |
634 | } | |
635 | ||
636 | if (synaptics_set_absolute_mode(psmouse)) { | |
637 | printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); | |
638 | goto init_fail; | |
639 | } | |
640 | ||
641 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; | |
642 | ||
409b7506 DT |
643 | printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx\n", |
644 | SYN_ID_MODEL(priv->identity), | |
645 | SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), | |
646 | priv->model_id, priv->capabilities, priv->ext_cap); | |
647 | ||
1da177e4 LT |
648 | set_input_params(&psmouse->dev, priv); |
649 | ||
650 | psmouse->protocol_handler = synaptics_process_byte; | |
651 | psmouse->set_rate = synaptics_set_rate; | |
652 | psmouse->disconnect = synaptics_disconnect; | |
653 | psmouse->reconnect = synaptics_reconnect; | |
654 | psmouse->pktsize = 6; | |
655 | ||
656 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
657 | synaptics_pt_create(psmouse); | |
658 | ||
659 | #if defined(__i386__) | |
660 | /* | |
661 | * Toshiba's KBC seems to have trouble handling data from | |
662 | * Synaptics as full rate, switch to lower rate which is roughly | |
663 | * thye same as rate of standard PS/2 mouse. | |
664 | */ | |
665 | if (psmouse->rate >= 80 && dmi_check_system(toshiba_dmi_table)) { | |
9ba5eaaf SH |
666 | printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n", |
667 | dmi_get_system_info(DMI_PRODUCT_NAME)); | |
1da177e4 LT |
668 | psmouse->rate = 40; |
669 | } | |
670 | #endif | |
671 | ||
672 | return 0; | |
673 | ||
674 | init_fail: | |
675 | kfree(priv); | |
676 | return -1; | |
677 | } | |
678 | ||
679 |