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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. | |
83ba9ea8 DT |
39 | * Note that newer firmware allows querying device for maximum useable |
40 | * coordinates. | |
1da177e4 LT |
41 | */ |
42 | #define XMIN_NOMINAL 1472 | |
43 | #define XMAX_NOMINAL 5472 | |
44 | #define YMIN_NOMINAL 1408 | |
45 | #define YMAX_NOMINAL 4448 | |
46 | ||
55e3d922 | 47 | |
1da177e4 | 48 | /***************************************************************************** |
55e3d922 | 49 | * Stuff we need even when we do not want native Synaptics support |
1da177e4 LT |
50 | ****************************************************************************/ |
51 | ||
52 | /* | |
55e3d922 | 53 | * Set the synaptics touchpad mode byte by special commands |
1da177e4 | 54 | */ |
55e3d922 | 55 | static int synaptics_mode_cmd(struct psmouse *psmouse, unsigned char mode) |
1da177e4 | 56 | { |
55e3d922 AS |
57 | unsigned char param[1]; |
58 | ||
59 | if (psmouse_sliced_command(psmouse, mode)) | |
1da177e4 | 60 | return -1; |
55e3d922 AS |
61 | param[0] = SYN_PS_SET_MODE2; |
62 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_SETRATE)) | |
1da177e4 LT |
63 | return -1; |
64 | return 0; | |
65 | } | |
66 | ||
b7802c5c | 67 | int synaptics_detect(struct psmouse *psmouse, bool set_properties) |
55e3d922 AS |
68 | { |
69 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
70 | unsigned char param[4]; | |
71 | ||
72 | param[0] = 0; | |
73 | ||
74 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
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_GETINFO); | |
79 | ||
80 | if (param[1] != 0x47) | |
81 | return -ENODEV; | |
82 | ||
83 | if (set_properties) { | |
84 | psmouse->vendor = "Synaptics"; | |
85 | psmouse->name = "TouchPad"; | |
86 | } | |
87 | ||
88 | return 0; | |
89 | } | |
90 | ||
91 | void synaptics_reset(struct psmouse *psmouse) | |
92 | { | |
93 | /* reset touchpad back to relative mode, gestures enabled */ | |
94 | synaptics_mode_cmd(psmouse, 0); | |
95 | } | |
96 | ||
97 | #ifdef CONFIG_MOUSE_PS2_SYNAPTICS | |
98 | ||
99 | /***************************************************************************** | |
100 | * Synaptics communications functions | |
101 | ****************************************************************************/ | |
102 | ||
1da177e4 | 103 | /* |
55e3d922 | 104 | * Send a command to the synpatics touchpad by special commands |
1da177e4 | 105 | */ |
55e3d922 | 106 | static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c, unsigned char *param) |
1da177e4 | 107 | { |
55e3d922 | 108 | if (psmouse_sliced_command(psmouse, c)) |
1da177e4 | 109 | return -1; |
55e3d922 | 110 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_GETINFO)) |
1da177e4 LT |
111 | return -1; |
112 | return 0; | |
113 | } | |
114 | ||
115 | /* | |
116 | * Read the model-id bytes from the touchpad | |
117 | * see also SYN_MODEL_* macros | |
118 | */ | |
119 | static int synaptics_model_id(struct psmouse *psmouse) | |
120 | { | |
121 | struct synaptics_data *priv = psmouse->private; | |
122 | unsigned char mi[3]; | |
123 | ||
124 | if (synaptics_send_cmd(psmouse, SYN_QUE_MODEL, mi)) | |
125 | return -1; | |
126 | priv->model_id = (mi[0]<<16) | (mi[1]<<8) | mi[2]; | |
127 | return 0; | |
128 | } | |
129 | ||
130 | /* | |
131 | * Read the capability-bits from the touchpad | |
132 | * see also the SYN_CAP_* macros | |
133 | */ | |
134 | static int synaptics_capability(struct psmouse *psmouse) | |
135 | { | |
136 | struct synaptics_data *priv = psmouse->private; | |
137 | unsigned char cap[3]; | |
138 | ||
139 | if (synaptics_send_cmd(psmouse, SYN_QUE_CAPABILITIES, cap)) | |
140 | return -1; | |
141 | priv->capabilities = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
5f57d67d TI |
142 | priv->ext_cap = priv->ext_cap_0c = 0; |
143 | ||
1da177e4 LT |
144 | if (!SYN_CAP_VALID(priv->capabilities)) |
145 | return -1; | |
146 | ||
147 | /* | |
148 | * Unless capExtended is set the rest of the flags should be ignored | |
149 | */ | |
150 | if (!SYN_CAP_EXTENDED(priv->capabilities)) | |
151 | priv->capabilities = 0; | |
152 | ||
153 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 1) { | |
154 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB, cap)) { | |
155 | printk(KERN_ERR "Synaptics claims to have extended capabilities," | |
5f57d67d | 156 | " but I'm not able to read them.\n"); |
1da177e4 LT |
157 | } else { |
158 | priv->ext_cap = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
159 | ||
160 | /* | |
161 | * if nExtBtn is greater than 8 it should be considered | |
162 | * invalid and treated as 0 | |
163 | */ | |
164 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) > 8) | |
165 | priv->ext_cap &= 0xff0fff; | |
166 | } | |
167 | } | |
5f57d67d TI |
168 | |
169 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 4) { | |
170 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_CAPAB_0C, cap)) { | |
171 | printk(KERN_ERR "Synaptics claims to have extended capability 0x0c," | |
172 | " but I'm not able to read it.\n"); | |
173 | } else { | |
174 | priv->ext_cap_0c = (cap[0] << 16) | (cap[1] << 8) | cap[2]; | |
175 | } | |
176 | } | |
177 | ||
1da177e4 LT |
178 | return 0; |
179 | } | |
180 | ||
181 | /* | |
182 | * Identify Touchpad | |
183 | * See also the SYN_ID_* macros | |
184 | */ | |
185 | static int synaptics_identify(struct psmouse *psmouse) | |
186 | { | |
187 | struct synaptics_data *priv = psmouse->private; | |
188 | unsigned char id[3]; | |
189 | ||
190 | if (synaptics_send_cmd(psmouse, SYN_QUE_IDENTIFY, id)) | |
191 | return -1; | |
192 | priv->identity = (id[0]<<16) | (id[1]<<8) | id[2]; | |
193 | if (SYN_ID_IS_SYNAPTICS(priv->identity)) | |
194 | return 0; | |
195 | return -1; | |
196 | } | |
197 | ||
ec20a022 | 198 | /* |
83ba9ea8 | 199 | * Read touchpad resolution and maximum reported coordinates |
ec20a022 TS |
200 | * Resolution is left zero if touchpad does not support the query |
201 | */ | |
202 | static int synaptics_resolution(struct psmouse *psmouse) | |
203 | { | |
204 | struct synaptics_data *priv = psmouse->private; | |
205 | unsigned char res[3]; | |
83ba9ea8 | 206 | unsigned char max[3]; |
ec20a022 TS |
207 | |
208 | if (SYN_ID_MAJOR(priv->identity) < 4) | |
bbddd199 | 209 | return 0; |
ec20a022 | 210 | |
83ba9ea8 DT |
211 | if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, res) == 0) { |
212 | if (res[0] != 0 && (res[1] & 0x80) && res[2] != 0) { | |
213 | priv->x_res = res[0]; /* x resolution in units/mm */ | |
214 | priv->y_res = res[2]; /* y resolution in units/mm */ | |
215 | } | |
216 | } | |
ec20a022 | 217 | |
83ba9ea8 DT |
218 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && |
219 | SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { | |
220 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_DIMENSIONS, max)) { | |
221 | printk(KERN_ERR "Synaptics claims to have dimensions query," | |
222 | " but I'm not able to read it.\n"); | |
223 | } else { | |
224 | priv->x_max = (max[0] << 5) | ((max[1] & 0x0f) << 1); | |
225 | priv->y_max = (max[2] << 5) | ((max[1] & 0xf0) >> 3); | |
226 | } | |
ec20a022 TS |
227 | } |
228 | ||
229 | return 0; | |
230 | } | |
231 | ||
1da177e4 LT |
232 | static int synaptics_query_hardware(struct psmouse *psmouse) |
233 | { | |
1da177e4 LT |
234 | if (synaptics_identify(psmouse)) |
235 | return -1; | |
236 | if (synaptics_model_id(psmouse)) | |
237 | return -1; | |
238 | if (synaptics_capability(psmouse)) | |
239 | return -1; | |
ec20a022 TS |
240 | if (synaptics_resolution(psmouse)) |
241 | return -1; | |
1da177e4 LT |
242 | |
243 | return 0; | |
244 | } | |
245 | ||
246 | static int synaptics_set_absolute_mode(struct psmouse *psmouse) | |
247 | { | |
248 | struct synaptics_data *priv = psmouse->private; | |
249 | ||
250 | priv->mode = SYN_BIT_ABSOLUTE_MODE; | |
251 | if (SYN_ID_MAJOR(priv->identity) >= 4) | |
252 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
253 | if (SYN_CAP_EXTENDED(priv->capabilities)) | |
254 | priv->mode |= SYN_BIT_W_MODE; | |
255 | ||
256 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
257 | return -1; | |
258 | ||
259 | return 0; | |
260 | } | |
261 | ||
262 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
263 | { | |
264 | struct synaptics_data *priv = psmouse->private; | |
265 | ||
266 | if (rate >= 80) { | |
267 | priv->mode |= SYN_BIT_HIGH_RATE; | |
268 | psmouse->rate = 80; | |
269 | } else { | |
270 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
271 | psmouse->rate = 40; | |
272 | } | |
273 | ||
274 | synaptics_mode_cmd(psmouse, priv->mode); | |
275 | } | |
276 | ||
277 | /***************************************************************************** | |
278 | * Synaptics pass-through PS/2 port support | |
279 | ****************************************************************************/ | |
280 | static int synaptics_pt_write(struct serio *serio, unsigned char c) | |
281 | { | |
282 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
283 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ | |
284 | ||
285 | if (psmouse_sliced_command(parent, c)) | |
286 | return -1; | |
287 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) | |
288 | return -1; | |
289 | return 0; | |
290 | } | |
291 | ||
292 | static inline int synaptics_is_pt_packet(unsigned char *buf) | |
293 | { | |
294 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
295 | } | |
296 | ||
297 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) | |
298 | { | |
299 | struct psmouse *child = serio_get_drvdata(ptport); | |
300 | ||
301 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
7d12e780 DH |
302 | serio_interrupt(ptport, packet[1], 0); |
303 | serio_interrupt(ptport, packet[4], 0); | |
304 | serio_interrupt(ptport, packet[5], 0); | |
33fdfa97 | 305 | if (child->pktsize == 4) |
7d12e780 | 306 | serio_interrupt(ptport, packet[2], 0); |
1da177e4 | 307 | } else |
7d12e780 | 308 | serio_interrupt(ptport, packet[1], 0); |
1da177e4 LT |
309 | } |
310 | ||
311 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
312 | { | |
313 | struct serio *ptport = psmouse->ps2dev.serio->child; | |
314 | struct psmouse *child = serio_get_drvdata(ptport); | |
315 | struct synaptics_data *priv = psmouse->private; | |
316 | ||
317 | /* adjust the touchpad to child's choice of protocol */ | |
318 | if (child) { | |
33fdfa97 | 319 | if (child->pktsize == 4) |
1da177e4 LT |
320 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
321 | else | |
322 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
323 | ||
324 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
325 | printk(KERN_INFO "synaptics: failed to switch guest protocol\n"); | |
326 | } | |
327 | } | |
328 | ||
329 | static void synaptics_pt_create(struct psmouse *psmouse) | |
330 | { | |
331 | struct serio *serio; | |
332 | ||
b39787a9 | 333 | serio = kzalloc(sizeof(struct serio), GFP_KERNEL); |
1da177e4 LT |
334 | if (!serio) { |
335 | printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n"); | |
336 | return; | |
337 | } | |
338 | ||
1da177e4 LT |
339 | serio->id.type = SERIO_PS_PSTHRU; |
340 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); | |
341 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); | |
342 | serio->write = synaptics_pt_write; | |
343 | serio->parent = psmouse->ps2dev.serio; | |
344 | ||
345 | psmouse->pt_activate = synaptics_pt_activate; | |
346 | ||
347 | printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys); | |
348 | serio_register_port(serio); | |
349 | } | |
350 | ||
351 | /***************************************************************************** | |
352 | * Functions to interpret the absolute mode packets | |
353 | ****************************************************************************/ | |
354 | ||
355 | static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw) | |
356 | { | |
357 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
358 | ||
359 | if (SYN_MODEL_NEWABS(priv->model_id)) { | |
360 | hw->x = (((buf[3] & 0x10) << 8) | | |
361 | ((buf[1] & 0x0f) << 8) | | |
362 | buf[4]); | |
363 | hw->y = (((buf[3] & 0x20) << 7) | | |
364 | ((buf[1] & 0xf0) << 4) | | |
365 | buf[5]); | |
366 | ||
367 | hw->z = buf[2]; | |
368 | hw->w = (((buf[0] & 0x30) >> 2) | | |
369 | ((buf[0] & 0x04) >> 1) | | |
370 | ((buf[3] & 0x04) >> 2)); | |
371 | ||
372 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
373 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
374 | ||
5f57d67d TI |
375 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { |
376 | /* | |
377 | * Clickpad's button is transmitted as middle button, | |
378 | * however, since it is primary button, we will report | |
379 | * it as BTN_LEFT. | |
380 | */ | |
381 | hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
382 | ||
383 | } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
1da177e4 LT |
384 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
385 | if (hw->w == 2) | |
386 | hw->scroll = (signed char)(buf[1]); | |
387 | } | |
388 | ||
389 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
390 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
391 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
392 | } | |
393 | ||
394 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && | |
395 | ((buf[0] ^ buf[3]) & 0x02)) { | |
396 | switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { | |
397 | default: | |
398 | /* | |
399 | * if nExtBtn is greater than 8 it should be | |
400 | * considered invalid and treated as 0 | |
401 | */ | |
402 | break; | |
403 | case 8: | |
404 | hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; | |
405 | hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; | |
406 | case 6: | |
407 | hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; | |
408 | hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; | |
409 | case 4: | |
410 | hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; | |
411 | hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; | |
412 | case 2: | |
413 | hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; | |
414 | hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; | |
415 | } | |
416 | } | |
417 | } else { | |
418 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
419 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
420 | ||
421 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
422 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
423 | ||
424 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
425 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
426 | } | |
427 | } | |
428 | ||
429 | /* | |
430 | * called for each full received packet from the touchpad | |
431 | */ | |
432 | static void synaptics_process_packet(struct psmouse *psmouse) | |
433 | { | |
2e5b636b | 434 | struct input_dev *dev = psmouse->dev; |
1da177e4 LT |
435 | struct synaptics_data *priv = psmouse->private; |
436 | struct synaptics_hw_state hw; | |
437 | int num_fingers; | |
438 | int finger_width; | |
439 | int i; | |
440 | ||
441 | synaptics_parse_hw_state(psmouse->packet, priv, &hw); | |
442 | ||
443 | if (hw.scroll) { | |
444 | priv->scroll += hw.scroll; | |
445 | ||
446 | while (priv->scroll >= 4) { | |
447 | input_report_key(dev, BTN_BACK, !hw.down); | |
448 | input_sync(dev); | |
449 | input_report_key(dev, BTN_BACK, hw.down); | |
450 | input_sync(dev); | |
451 | priv->scroll -= 4; | |
452 | } | |
453 | while (priv->scroll <= -4) { | |
454 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
455 | input_sync(dev); | |
456 | input_report_key(dev, BTN_FORWARD, hw.up); | |
457 | input_sync(dev); | |
458 | priv->scroll += 4; | |
459 | } | |
460 | return; | |
461 | } | |
462 | ||
463 | if (hw.z > 0) { | |
464 | num_fingers = 1; | |
465 | finger_width = 5; | |
466 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
467 | switch (hw.w) { | |
468 | case 0 ... 1: | |
469 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
470 | num_fingers = hw.w + 2; | |
471 | break; | |
472 | case 2: | |
473 | if (SYN_MODEL_PEN(priv->model_id)) | |
474 | ; /* Nothing, treat a pen as a single finger */ | |
475 | break; | |
476 | case 4 ... 15: | |
477 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
478 | finger_width = hw.w; | |
479 | break; | |
480 | } | |
481 | } | |
482 | } else { | |
483 | num_fingers = 0; | |
484 | finger_width = 0; | |
485 | } | |
486 | ||
487 | /* Post events | |
488 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
489 | * absolute -> relative conversion | |
490 | */ | |
491 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
492 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
493 | ||
494 | if (hw.z > 0) { | |
495 | input_report_abs(dev, ABS_X, hw.x); | |
496 | input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y); | |
497 | } | |
498 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
499 | ||
500 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); | |
501 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); | |
1da177e4 LT |
502 | input_report_key(dev, BTN_LEFT, hw.left); |
503 | input_report_key(dev, BTN_RIGHT, hw.right); | |
504 | ||
e42b6646 PH |
505 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
506 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); | |
507 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); | |
508 | } | |
509 | ||
1da177e4 LT |
510 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
511 | input_report_key(dev, BTN_MIDDLE, hw.middle); | |
512 | ||
513 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
514 | input_report_key(dev, BTN_FORWARD, hw.up); | |
515 | input_report_key(dev, BTN_BACK, hw.down); | |
516 | } | |
517 | ||
518 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
519 | input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i)); | |
520 | ||
521 | input_sync(dev); | |
522 | } | |
523 | ||
524 | static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type) | |
525 | { | |
e38de678 HD |
526 | static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; |
527 | static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; | |
528 | static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; | |
529 | static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; | |
530 | static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; | |
1da177e4 LT |
531 | |
532 | if (idx < 0 || idx > 4) | |
533 | return 0; | |
534 | ||
535 | switch (pkt_type) { | |
1da177e4 | 536 | |
a62f0d27 DT |
537 | case SYN_NEWABS: |
538 | case SYN_NEWABS_RELAXED: | |
539 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 540 | |
a62f0d27 DT |
541 | case SYN_NEWABS_STRICT: |
542 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 543 | |
a62f0d27 DT |
544 | case SYN_OLDABS: |
545 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
546 | ||
547 | default: | |
548 | printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type); | |
549 | return 0; | |
1da177e4 LT |
550 | } |
551 | } | |
552 | ||
553 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) | |
554 | { | |
555 | int i; | |
556 | ||
557 | for (i = 0; i < 5; i++) | |
558 | if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) { | |
559 | printk(KERN_INFO "synaptics: using relaxed packet validation\n"); | |
560 | return SYN_NEWABS_RELAXED; | |
561 | } | |
562 | ||
563 | return SYN_NEWABS_STRICT; | |
564 | } | |
565 | ||
7d12e780 | 566 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) |
1da177e4 | 567 | { |
1da177e4 LT |
568 | struct synaptics_data *priv = psmouse->private; |
569 | ||
1da177e4 LT |
570 | if (psmouse->pktcnt >= 6) { /* Full packet received */ |
571 | if (unlikely(priv->pkt_type == SYN_NEWABS)) | |
572 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); | |
573 | ||
574 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) { | |
575 | if (psmouse->ps2dev.serio->child) | |
576 | synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet); | |
577 | } else | |
578 | synaptics_process_packet(psmouse); | |
579 | ||
580 | return PSMOUSE_FULL_PACKET; | |
581 | } | |
582 | ||
583 | return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ? | |
584 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; | |
585 | } | |
586 | ||
587 | /***************************************************************************** | |
588 | * Driver initialization/cleanup functions | |
589 | ****************************************************************************/ | |
590 | static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) | |
591 | { | |
592 | int i; | |
593 | ||
b7802c5c | 594 | __set_bit(EV_ABS, dev->evbit); |
83ba9ea8 DT |
595 | input_set_abs_params(dev, ABS_X, |
596 | XMIN_NOMINAL, priv->x_max ?: XMAX_NOMINAL, 0, 0); | |
597 | input_set_abs_params(dev, ABS_Y, | |
598 | YMIN_NOMINAL, priv->y_max ?: YMAX_NOMINAL, 0, 0); | |
1da177e4 | 599 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); |
b7802c5c | 600 | __set_bit(ABS_TOOL_WIDTH, dev->absbit); |
1da177e4 | 601 | |
b7802c5c DT |
602 | __set_bit(EV_KEY, dev->evbit); |
603 | __set_bit(BTN_TOUCH, dev->keybit); | |
604 | __set_bit(BTN_TOOL_FINGER, dev->keybit); | |
605 | __set_bit(BTN_LEFT, dev->keybit); | |
606 | __set_bit(BTN_RIGHT, dev->keybit); | |
1da177e4 | 607 | |
e42b6646 | 608 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
b7802c5c DT |
609 | __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); |
610 | __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); | |
e42b6646 PH |
611 | } |
612 | ||
1da177e4 | 613 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
b7802c5c | 614 | __set_bit(BTN_MIDDLE, dev->keybit); |
1da177e4 LT |
615 | |
616 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || | |
617 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
b7802c5c DT |
618 | __set_bit(BTN_FORWARD, dev->keybit); |
619 | __set_bit(BTN_BACK, dev->keybit); | |
1da177e4 LT |
620 | } |
621 | ||
622 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
b7802c5c | 623 | __set_bit(BTN_0 + i, dev->keybit); |
1da177e4 | 624 | |
b7802c5c DT |
625 | __clear_bit(EV_REL, dev->evbit); |
626 | __clear_bit(REL_X, dev->relbit); | |
627 | __clear_bit(REL_Y, dev->relbit); | |
ec20a022 TS |
628 | |
629 | dev->absres[ABS_X] = priv->x_res; | |
630 | dev->absres[ABS_Y] = priv->y_res; | |
5f57d67d TI |
631 | |
632 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { | |
633 | /* Clickpads report only left button */ | |
634 | __clear_bit(BTN_RIGHT, dev->keybit); | |
635 | __clear_bit(BTN_MIDDLE, dev->keybit); | |
636 | } | |
1da177e4 LT |
637 | } |
638 | ||
1da177e4 LT |
639 | static void synaptics_disconnect(struct psmouse *psmouse) |
640 | { | |
641 | synaptics_reset(psmouse); | |
642 | kfree(psmouse->private); | |
643 | psmouse->private = NULL; | |
644 | } | |
645 | ||
646 | static int synaptics_reconnect(struct psmouse *psmouse) | |
647 | { | |
648 | struct synaptics_data *priv = psmouse->private; | |
649 | struct synaptics_data old_priv = *priv; | |
650 | ||
4d368456 AW |
651 | psmouse_reset(psmouse); |
652 | ||
1da177e4 LT |
653 | if (synaptics_detect(psmouse, 0)) |
654 | return -1; | |
655 | ||
656 | if (synaptics_query_hardware(psmouse)) { | |
657 | printk(KERN_ERR "Unable to query Synaptics hardware.\n"); | |
658 | return -1; | |
659 | } | |
660 | ||
661 | if (old_priv.identity != priv->identity || | |
662 | old_priv.model_id != priv->model_id || | |
663 | old_priv.capabilities != priv->capabilities || | |
664 | old_priv.ext_cap != priv->ext_cap) | |
665 | return -1; | |
666 | ||
667 | if (synaptics_set_absolute_mode(psmouse)) { | |
668 | printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); | |
669 | return -1; | |
670 | } | |
671 | ||
672 | return 0; | |
673 | } | |
674 | ||
7705d548 DT |
675 | static bool impaired_toshiba_kbc; |
676 | ||
677 | static const struct dmi_system_id __initconst toshiba_dmi_table[] = { | |
678 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) | |
1da177e4 | 679 | { |
9961e259 | 680 | /* Toshiba Satellite */ |
1da177e4 LT |
681 | .matches = { |
682 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c | 683 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
1da177e4 LT |
684 | }, |
685 | }, | |
9ba5eaaf | 686 | { |
9961e259 | 687 | /* Toshiba Dynabook */ |
9ba5eaaf SH |
688 | .matches = { |
689 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c RT |
690 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), |
691 | }, | |
692 | }, | |
693 | { | |
9961e259 | 694 | /* Toshiba Portege M300 */ |
53a2670c RT |
695 | .matches = { |
696 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
697 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), | |
9ba5eaaf | 698 | }, |
5f5eeff4 DT |
699 | |
700 | }, | |
701 | { | |
9961e259 | 702 | /* Toshiba Portege M300 */ |
5f5eeff4 DT |
703 | .matches = { |
704 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
705 | DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), | |
706 | DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), | |
707 | }, | |
708 | ||
9ba5eaaf | 709 | }, |
1da177e4 | 710 | { } |
1da177e4 | 711 | #endif |
7705d548 DT |
712 | }; |
713 | ||
714 | void __init synaptics_module_init(void) | |
715 | { | |
716 | impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); | |
717 | } | |
1da177e4 LT |
718 | |
719 | int synaptics_init(struct psmouse *psmouse) | |
720 | { | |
721 | struct synaptics_data *priv; | |
722 | ||
b39787a9 | 723 | psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); |
1da177e4 LT |
724 | if (!priv) |
725 | return -1; | |
1da177e4 | 726 | |
4d368456 AW |
727 | psmouse_reset(psmouse); |
728 | ||
1da177e4 LT |
729 | if (synaptics_query_hardware(psmouse)) { |
730 | printk(KERN_ERR "Unable to query Synaptics hardware.\n"); | |
731 | goto init_fail; | |
732 | } | |
733 | ||
734 | if (synaptics_set_absolute_mode(psmouse)) { | |
735 | printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); | |
736 | goto init_fail; | |
737 | } | |
738 | ||
739 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; | |
740 | ||
5f57d67d | 741 | printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n", |
409b7506 DT |
742 | SYN_ID_MODEL(priv->identity), |
743 | SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), | |
5f57d67d | 744 | priv->model_id, priv->capabilities, priv->ext_cap, priv->ext_cap_0c); |
409b7506 | 745 | |
2e5b636b | 746 | set_input_params(psmouse->dev, priv); |
1da177e4 | 747 | |
887cc127 DT |
748 | /* |
749 | * Encode touchpad model so that it can be used to set | |
750 | * input device->id.version and be visible to userspace. | |
751 | * Because version is __u16 we have to drop something. | |
752 | * Hardware info bits seem to be good candidates as they | |
753 | * are documented to be for Synaptics corp. internal use. | |
754 | */ | |
755 | psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | | |
756 | (priv->model_id & 0x000000ff); | |
757 | ||
1da177e4 LT |
758 | psmouse->protocol_handler = synaptics_process_byte; |
759 | psmouse->set_rate = synaptics_set_rate; | |
760 | psmouse->disconnect = synaptics_disconnect; | |
761 | psmouse->reconnect = synaptics_reconnect; | |
a1cec061 | 762 | psmouse->cleanup = synaptics_reset; |
1da177e4 | 763 | psmouse->pktsize = 6; |
f0d5c6f4 DT |
764 | /* Synaptics can usually stay in sync without extra help */ |
765 | psmouse->resync_time = 0; | |
1da177e4 LT |
766 | |
767 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
768 | synaptics_pt_create(psmouse); | |
769 | ||
1da177e4 LT |
770 | /* |
771 | * Toshiba's KBC seems to have trouble handling data from | |
772 | * Synaptics as full rate, switch to lower rate which is roughly | |
773 | * thye same as rate of standard PS/2 mouse. | |
774 | */ | |
7705d548 | 775 | if (psmouse->rate >= 80 && impaired_toshiba_kbc) { |
9ba5eaaf SH |
776 | printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n", |
777 | dmi_get_system_info(DMI_PRODUCT_NAME)); | |
1da177e4 LT |
778 | psmouse->rate = 40; |
779 | } | |
1da177e4 LT |
780 | |
781 | return 0; | |
782 | ||
783 | init_fail: | |
784 | kfree(priv); | |
785 | return -1; | |
786 | } | |
787 | ||
e4e6efd2 DD |
788 | bool synaptics_supported(void) |
789 | { | |
790 | return true; | |
791 | } | |
792 | ||
55e3d922 AS |
793 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
794 | ||
7705d548 DT |
795 | void __init synaptics_module_init(void) |
796 | { | |
797 | } | |
798 | ||
55e3d922 AS |
799 | int synaptics_init(struct psmouse *psmouse) |
800 | { | |
801 | return -ENOSYS; | |
802 | } | |
803 | ||
e4e6efd2 DD |
804 | bool synaptics_supported(void) |
805 | { | |
806 | return false; | |
807 | } | |
808 | ||
55e3d922 | 809 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
1da177e4 | 810 |