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Commit | Line | Data |
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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) | |
ec20a022 | 209 | |
83ba9ea8 DT |
210 | if (synaptics_send_cmd(psmouse, SYN_QUE_RESOLUTION, res) == 0) { |
211 | if (res[0] != 0 && (res[1] & 0x80) && res[2] != 0) { | |
212 | priv->x_res = res[0]; /* x resolution in units/mm */ | |
213 | priv->y_res = res[2]; /* y resolution in units/mm */ | |
214 | } | |
215 | } | |
ec20a022 | 216 | |
83ba9ea8 DT |
217 | if (SYN_EXT_CAP_REQUESTS(priv->capabilities) >= 5 && |
218 | SYN_CAP_MAX_DIMENSIONS(priv->ext_cap_0c)) { | |
219 | if (synaptics_send_cmd(psmouse, SYN_QUE_EXT_DIMENSIONS, max)) { | |
220 | printk(KERN_ERR "Synaptics claims to have dimensions query," | |
221 | " but I'm not able to read it.\n"); | |
222 | } else { | |
223 | priv->x_max = (max[0] << 5) | ((max[1] & 0x0f) << 1); | |
224 | priv->y_max = (max[2] << 5) | ((max[1] & 0xf0) >> 3); | |
225 | } | |
ec20a022 TS |
226 | } |
227 | ||
228 | return 0; | |
229 | } | |
230 | ||
1da177e4 LT |
231 | static int synaptics_query_hardware(struct psmouse *psmouse) |
232 | { | |
1da177e4 LT |
233 | if (synaptics_identify(psmouse)) |
234 | return -1; | |
235 | if (synaptics_model_id(psmouse)) | |
236 | return -1; | |
237 | if (synaptics_capability(psmouse)) | |
238 | return -1; | |
ec20a022 TS |
239 | if (synaptics_resolution(psmouse)) |
240 | return -1; | |
1da177e4 LT |
241 | |
242 | return 0; | |
243 | } | |
244 | ||
245 | static int synaptics_set_absolute_mode(struct psmouse *psmouse) | |
246 | { | |
247 | struct synaptics_data *priv = psmouse->private; | |
248 | ||
249 | priv->mode = SYN_BIT_ABSOLUTE_MODE; | |
250 | if (SYN_ID_MAJOR(priv->identity) >= 4) | |
251 | priv->mode |= SYN_BIT_DISABLE_GESTURE; | |
252 | if (SYN_CAP_EXTENDED(priv->capabilities)) | |
253 | priv->mode |= SYN_BIT_W_MODE; | |
254 | ||
255 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
256 | return -1; | |
257 | ||
258 | return 0; | |
259 | } | |
260 | ||
261 | static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate) | |
262 | { | |
263 | struct synaptics_data *priv = psmouse->private; | |
264 | ||
265 | if (rate >= 80) { | |
266 | priv->mode |= SYN_BIT_HIGH_RATE; | |
267 | psmouse->rate = 80; | |
268 | } else { | |
269 | priv->mode &= ~SYN_BIT_HIGH_RATE; | |
270 | psmouse->rate = 40; | |
271 | } | |
272 | ||
273 | synaptics_mode_cmd(psmouse, priv->mode); | |
274 | } | |
275 | ||
276 | /***************************************************************************** | |
277 | * Synaptics pass-through PS/2 port support | |
278 | ****************************************************************************/ | |
279 | static int synaptics_pt_write(struct serio *serio, unsigned char c) | |
280 | { | |
281 | struct psmouse *parent = serio_get_drvdata(serio->parent); | |
282 | char rate_param = SYN_PS_CLIENT_CMD; /* indicates that we want pass-through port */ | |
283 | ||
284 | if (psmouse_sliced_command(parent, c)) | |
285 | return -1; | |
286 | if (ps2_command(&parent->ps2dev, &rate_param, PSMOUSE_CMD_SETRATE)) | |
287 | return -1; | |
288 | return 0; | |
289 | } | |
290 | ||
291 | static inline int synaptics_is_pt_packet(unsigned char *buf) | |
292 | { | |
293 | return (buf[0] & 0xFC) == 0x84 && (buf[3] & 0xCC) == 0xC4; | |
294 | } | |
295 | ||
296 | static void synaptics_pass_pt_packet(struct serio *ptport, unsigned char *packet) | |
297 | { | |
298 | struct psmouse *child = serio_get_drvdata(ptport); | |
299 | ||
300 | if (child && child->state == PSMOUSE_ACTIVATED) { | |
7d12e780 DH |
301 | serio_interrupt(ptport, packet[1], 0); |
302 | serio_interrupt(ptport, packet[4], 0); | |
303 | serio_interrupt(ptport, packet[5], 0); | |
33fdfa97 | 304 | if (child->pktsize == 4) |
7d12e780 | 305 | serio_interrupt(ptport, packet[2], 0); |
1da177e4 | 306 | } else |
7d12e780 | 307 | serio_interrupt(ptport, packet[1], 0); |
1da177e4 LT |
308 | } |
309 | ||
310 | static void synaptics_pt_activate(struct psmouse *psmouse) | |
311 | { | |
312 | struct serio *ptport = psmouse->ps2dev.serio->child; | |
313 | struct psmouse *child = serio_get_drvdata(ptport); | |
314 | struct synaptics_data *priv = psmouse->private; | |
315 | ||
316 | /* adjust the touchpad to child's choice of protocol */ | |
317 | if (child) { | |
33fdfa97 | 318 | if (child->pktsize == 4) |
1da177e4 LT |
319 | priv->mode |= SYN_BIT_FOUR_BYTE_CLIENT; |
320 | else | |
321 | priv->mode &= ~SYN_BIT_FOUR_BYTE_CLIENT; | |
322 | ||
323 | if (synaptics_mode_cmd(psmouse, priv->mode)) | |
324 | printk(KERN_INFO "synaptics: failed to switch guest protocol\n"); | |
325 | } | |
326 | } | |
327 | ||
328 | static void synaptics_pt_create(struct psmouse *psmouse) | |
329 | { | |
330 | struct serio *serio; | |
331 | ||
b39787a9 | 332 | serio = kzalloc(sizeof(struct serio), GFP_KERNEL); |
1da177e4 LT |
333 | if (!serio) { |
334 | printk(KERN_ERR "synaptics: not enough memory to allocate pass-through port\n"); | |
335 | return; | |
336 | } | |
337 | ||
1da177e4 LT |
338 | serio->id.type = SERIO_PS_PSTHRU; |
339 | strlcpy(serio->name, "Synaptics pass-through", sizeof(serio->name)); | |
340 | strlcpy(serio->phys, "synaptics-pt/serio0", sizeof(serio->name)); | |
341 | serio->write = synaptics_pt_write; | |
342 | serio->parent = psmouse->ps2dev.serio; | |
343 | ||
344 | psmouse->pt_activate = synaptics_pt_activate; | |
345 | ||
346 | printk(KERN_INFO "serio: %s port at %s\n", serio->name, psmouse->phys); | |
347 | serio_register_port(serio); | |
348 | } | |
349 | ||
350 | /***************************************************************************** | |
351 | * Functions to interpret the absolute mode packets | |
352 | ****************************************************************************/ | |
353 | ||
354 | static void synaptics_parse_hw_state(unsigned char buf[], struct synaptics_data *priv, struct synaptics_hw_state *hw) | |
355 | { | |
356 | memset(hw, 0, sizeof(struct synaptics_hw_state)); | |
357 | ||
358 | if (SYN_MODEL_NEWABS(priv->model_id)) { | |
359 | hw->x = (((buf[3] & 0x10) << 8) | | |
360 | ((buf[1] & 0x0f) << 8) | | |
361 | buf[4]); | |
362 | hw->y = (((buf[3] & 0x20) << 7) | | |
363 | ((buf[1] & 0xf0) << 4) | | |
364 | buf[5]); | |
365 | ||
366 | hw->z = buf[2]; | |
367 | hw->w = (((buf[0] & 0x30) >> 2) | | |
368 | ((buf[0] & 0x04) >> 1) | | |
369 | ((buf[3] & 0x04) >> 2)); | |
370 | ||
371 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
372 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
373 | ||
5f57d67d TI |
374 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { |
375 | /* | |
376 | * Clickpad's button is transmitted as middle button, | |
377 | * however, since it is primary button, we will report | |
378 | * it as BTN_LEFT. | |
379 | */ | |
380 | hw->left = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
381 | ||
382 | } else if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
1da177e4 LT |
383 | hw->middle = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; |
384 | if (hw->w == 2) | |
385 | hw->scroll = (signed char)(buf[1]); | |
386 | } | |
387 | ||
388 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
389 | hw->up = ((buf[0] ^ buf[3]) & 0x01) ? 1 : 0; | |
390 | hw->down = ((buf[0] ^ buf[3]) & 0x02) ? 1 : 0; | |
391 | } | |
392 | ||
393 | if (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) && | |
394 | ((buf[0] ^ buf[3]) & 0x02)) { | |
395 | switch (SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap) & ~0x01) { | |
396 | default: | |
397 | /* | |
398 | * if nExtBtn is greater than 8 it should be | |
399 | * considered invalid and treated as 0 | |
400 | */ | |
401 | break; | |
402 | case 8: | |
403 | hw->ext_buttons |= ((buf[5] & 0x08)) ? 0x80 : 0; | |
404 | hw->ext_buttons |= ((buf[4] & 0x08)) ? 0x40 : 0; | |
405 | case 6: | |
406 | hw->ext_buttons |= ((buf[5] & 0x04)) ? 0x20 : 0; | |
407 | hw->ext_buttons |= ((buf[4] & 0x04)) ? 0x10 : 0; | |
408 | case 4: | |
409 | hw->ext_buttons |= ((buf[5] & 0x02)) ? 0x08 : 0; | |
410 | hw->ext_buttons |= ((buf[4] & 0x02)) ? 0x04 : 0; | |
411 | case 2: | |
412 | hw->ext_buttons |= ((buf[5] & 0x01)) ? 0x02 : 0; | |
413 | hw->ext_buttons |= ((buf[4] & 0x01)) ? 0x01 : 0; | |
414 | } | |
415 | } | |
416 | } else { | |
417 | hw->x = (((buf[1] & 0x1f) << 8) | buf[2]); | |
418 | hw->y = (((buf[4] & 0x1f) << 8) | buf[5]); | |
419 | ||
420 | hw->z = (((buf[0] & 0x30) << 2) | (buf[3] & 0x3F)); | |
421 | hw->w = (((buf[1] & 0x80) >> 4) | ((buf[0] & 0x04) >> 1)); | |
422 | ||
423 | hw->left = (buf[0] & 0x01) ? 1 : 0; | |
424 | hw->right = (buf[0] & 0x02) ? 1 : 0; | |
425 | } | |
426 | } | |
427 | ||
428 | /* | |
429 | * called for each full received packet from the touchpad | |
430 | */ | |
431 | static void synaptics_process_packet(struct psmouse *psmouse) | |
432 | { | |
2e5b636b | 433 | struct input_dev *dev = psmouse->dev; |
1da177e4 LT |
434 | struct synaptics_data *priv = psmouse->private; |
435 | struct synaptics_hw_state hw; | |
436 | int num_fingers; | |
437 | int finger_width; | |
438 | int i; | |
439 | ||
440 | synaptics_parse_hw_state(psmouse->packet, priv, &hw); | |
441 | ||
442 | if (hw.scroll) { | |
443 | priv->scroll += hw.scroll; | |
444 | ||
445 | while (priv->scroll >= 4) { | |
446 | input_report_key(dev, BTN_BACK, !hw.down); | |
447 | input_sync(dev); | |
448 | input_report_key(dev, BTN_BACK, hw.down); | |
449 | input_sync(dev); | |
450 | priv->scroll -= 4; | |
451 | } | |
452 | while (priv->scroll <= -4) { | |
453 | input_report_key(dev, BTN_FORWARD, !hw.up); | |
454 | input_sync(dev); | |
455 | input_report_key(dev, BTN_FORWARD, hw.up); | |
456 | input_sync(dev); | |
457 | priv->scroll += 4; | |
458 | } | |
459 | return; | |
460 | } | |
461 | ||
462 | if (hw.z > 0) { | |
463 | num_fingers = 1; | |
464 | finger_width = 5; | |
465 | if (SYN_CAP_EXTENDED(priv->capabilities)) { | |
466 | switch (hw.w) { | |
467 | case 0 ... 1: | |
468 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) | |
469 | num_fingers = hw.w + 2; | |
470 | break; | |
471 | case 2: | |
472 | if (SYN_MODEL_PEN(priv->model_id)) | |
473 | ; /* Nothing, treat a pen as a single finger */ | |
474 | break; | |
475 | case 4 ... 15: | |
476 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
477 | finger_width = hw.w; | |
478 | break; | |
479 | } | |
480 | } | |
481 | } else { | |
482 | num_fingers = 0; | |
483 | finger_width = 0; | |
484 | } | |
485 | ||
486 | /* Post events | |
487 | * BTN_TOUCH has to be first as mousedev relies on it when doing | |
488 | * absolute -> relative conversion | |
489 | */ | |
490 | if (hw.z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
491 | if (hw.z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
492 | ||
493 | if (hw.z > 0) { | |
494 | input_report_abs(dev, ABS_X, hw.x); | |
495 | input_report_abs(dev, ABS_Y, YMAX_NOMINAL + YMIN_NOMINAL - hw.y); | |
496 | } | |
497 | input_report_abs(dev, ABS_PRESSURE, hw.z); | |
498 | ||
2a8e7710 CB |
499 | if (SYN_CAP_PALMDETECT(priv->capabilities)) |
500 | input_report_abs(dev, ABS_TOOL_WIDTH, finger_width); | |
501 | ||
1da177e4 | 502 | input_report_key(dev, BTN_TOOL_FINGER, num_fingers == 1); |
1da177e4 LT |
503 | input_report_key(dev, BTN_LEFT, hw.left); |
504 | input_report_key(dev, BTN_RIGHT, hw.right); | |
505 | ||
e42b6646 PH |
506 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
507 | input_report_key(dev, BTN_TOOL_DOUBLETAP, num_fingers == 2); | |
508 | input_report_key(dev, BTN_TOOL_TRIPLETAP, num_fingers == 3); | |
509 | } | |
510 | ||
1da177e4 LT |
511 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
512 | input_report_key(dev, BTN_MIDDLE, hw.middle); | |
513 | ||
514 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities)) { | |
515 | input_report_key(dev, BTN_FORWARD, hw.up); | |
516 | input_report_key(dev, BTN_BACK, hw.down); | |
517 | } | |
518 | ||
519 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
520 | input_report_key(dev, BTN_0 + i, hw.ext_buttons & (1 << i)); | |
521 | ||
522 | input_sync(dev); | |
523 | } | |
524 | ||
525 | static int synaptics_validate_byte(unsigned char packet[], int idx, unsigned char pkt_type) | |
526 | { | |
e38de678 HD |
527 | static const unsigned char newabs_mask[] = { 0xC8, 0x00, 0x00, 0xC8, 0x00 }; |
528 | static const unsigned char newabs_rel_mask[] = { 0xC0, 0x00, 0x00, 0xC0, 0x00 }; | |
529 | static const unsigned char newabs_rslt[] = { 0x80, 0x00, 0x00, 0xC0, 0x00 }; | |
530 | static const unsigned char oldabs_mask[] = { 0xC0, 0x60, 0x00, 0xC0, 0x60 }; | |
531 | static const unsigned char oldabs_rslt[] = { 0xC0, 0x00, 0x00, 0x80, 0x00 }; | |
1da177e4 LT |
532 | |
533 | if (idx < 0 || idx > 4) | |
534 | return 0; | |
535 | ||
536 | switch (pkt_type) { | |
1da177e4 | 537 | |
a62f0d27 DT |
538 | case SYN_NEWABS: |
539 | case SYN_NEWABS_RELAXED: | |
540 | return (packet[idx] & newabs_rel_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 541 | |
a62f0d27 DT |
542 | case SYN_NEWABS_STRICT: |
543 | return (packet[idx] & newabs_mask[idx]) == newabs_rslt[idx]; | |
1da177e4 | 544 | |
a62f0d27 DT |
545 | case SYN_OLDABS: |
546 | return (packet[idx] & oldabs_mask[idx]) == oldabs_rslt[idx]; | |
547 | ||
548 | default: | |
549 | printk(KERN_ERR "synaptics: unknown packet type %d\n", pkt_type); | |
550 | return 0; | |
1da177e4 LT |
551 | } |
552 | } | |
553 | ||
554 | static unsigned char synaptics_detect_pkt_type(struct psmouse *psmouse) | |
555 | { | |
556 | int i; | |
557 | ||
558 | for (i = 0; i < 5; i++) | |
559 | if (!synaptics_validate_byte(psmouse->packet, i, SYN_NEWABS_STRICT)) { | |
560 | printk(KERN_INFO "synaptics: using relaxed packet validation\n"); | |
561 | return SYN_NEWABS_RELAXED; | |
562 | } | |
563 | ||
564 | return SYN_NEWABS_STRICT; | |
565 | } | |
566 | ||
7d12e780 | 567 | static psmouse_ret_t synaptics_process_byte(struct psmouse *psmouse) |
1da177e4 | 568 | { |
1da177e4 LT |
569 | struct synaptics_data *priv = psmouse->private; |
570 | ||
1da177e4 LT |
571 | if (psmouse->pktcnt >= 6) { /* Full packet received */ |
572 | if (unlikely(priv->pkt_type == SYN_NEWABS)) | |
573 | priv->pkt_type = synaptics_detect_pkt_type(psmouse); | |
574 | ||
575 | if (SYN_CAP_PASS_THROUGH(priv->capabilities) && synaptics_is_pt_packet(psmouse->packet)) { | |
576 | if (psmouse->ps2dev.serio->child) | |
577 | synaptics_pass_pt_packet(psmouse->ps2dev.serio->child, psmouse->packet); | |
578 | } else | |
579 | synaptics_process_packet(psmouse); | |
580 | ||
581 | return PSMOUSE_FULL_PACKET; | |
582 | } | |
583 | ||
584 | return synaptics_validate_byte(psmouse->packet, psmouse->pktcnt - 1, priv->pkt_type) ? | |
585 | PSMOUSE_GOOD_DATA : PSMOUSE_BAD_DATA; | |
586 | } | |
587 | ||
588 | /***************************************************************************** | |
589 | * Driver initialization/cleanup functions | |
590 | ****************************************************************************/ | |
591 | static void set_input_params(struct input_dev *dev, struct synaptics_data *priv) | |
592 | { | |
593 | int i; | |
594 | ||
b7802c5c | 595 | __set_bit(EV_ABS, dev->evbit); |
83ba9ea8 DT |
596 | input_set_abs_params(dev, ABS_X, |
597 | XMIN_NOMINAL, priv->x_max ?: XMAX_NOMINAL, 0, 0); | |
598 | input_set_abs_params(dev, ABS_Y, | |
599 | YMIN_NOMINAL, priv->y_max ?: YMAX_NOMINAL, 0, 0); | |
1da177e4 | 600 | input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0); |
2a8e7710 CB |
601 | |
602 | if (SYN_CAP_PALMDETECT(priv->capabilities)) | |
58fb0218 | 603 | input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0); |
1da177e4 | 604 | |
b7802c5c DT |
605 | __set_bit(EV_KEY, dev->evbit); |
606 | __set_bit(BTN_TOUCH, dev->keybit); | |
607 | __set_bit(BTN_TOOL_FINGER, dev->keybit); | |
608 | __set_bit(BTN_LEFT, dev->keybit); | |
609 | __set_bit(BTN_RIGHT, dev->keybit); | |
1da177e4 | 610 | |
e42b6646 | 611 | if (SYN_CAP_MULTIFINGER(priv->capabilities)) { |
b7802c5c DT |
612 | __set_bit(BTN_TOOL_DOUBLETAP, dev->keybit); |
613 | __set_bit(BTN_TOOL_TRIPLETAP, dev->keybit); | |
e42b6646 PH |
614 | } |
615 | ||
1da177e4 | 616 | if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) |
b7802c5c | 617 | __set_bit(BTN_MIDDLE, dev->keybit); |
1da177e4 LT |
618 | |
619 | if (SYN_CAP_FOUR_BUTTON(priv->capabilities) || | |
620 | SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) { | |
b7802c5c DT |
621 | __set_bit(BTN_FORWARD, dev->keybit); |
622 | __set_bit(BTN_BACK, dev->keybit); | |
1da177e4 LT |
623 | } |
624 | ||
625 | for (i = 0; i < SYN_CAP_MULTI_BUTTON_NO(priv->ext_cap); i++) | |
b7802c5c | 626 | __set_bit(BTN_0 + i, dev->keybit); |
1da177e4 | 627 | |
b7802c5c DT |
628 | __clear_bit(EV_REL, dev->evbit); |
629 | __clear_bit(REL_X, dev->relbit); | |
630 | __clear_bit(REL_Y, dev->relbit); | |
ec20a022 | 631 | |
987a6c02 DM |
632 | input_abs_set_res(dev, ABS_X, priv->x_res); |
633 | input_abs_set_res(dev, ABS_Y, priv->y_res); | |
5f57d67d TI |
634 | |
635 | if (SYN_CAP_CLICKPAD(priv->ext_cap_0c)) { | |
636 | /* Clickpads report only left button */ | |
637 | __clear_bit(BTN_RIGHT, dev->keybit); | |
638 | __clear_bit(BTN_MIDDLE, dev->keybit); | |
639 | } | |
1da177e4 LT |
640 | } |
641 | ||
1da177e4 LT |
642 | static void synaptics_disconnect(struct psmouse *psmouse) |
643 | { | |
644 | synaptics_reset(psmouse); | |
645 | kfree(psmouse->private); | |
646 | psmouse->private = NULL; | |
647 | } | |
648 | ||
649 | static int synaptics_reconnect(struct psmouse *psmouse) | |
650 | { | |
651 | struct synaptics_data *priv = psmouse->private; | |
652 | struct synaptics_data old_priv = *priv; | |
653 | ||
4d368456 AW |
654 | psmouse_reset(psmouse); |
655 | ||
1da177e4 LT |
656 | if (synaptics_detect(psmouse, 0)) |
657 | return -1; | |
658 | ||
659 | if (synaptics_query_hardware(psmouse)) { | |
660 | printk(KERN_ERR "Unable to query Synaptics hardware.\n"); | |
661 | return -1; | |
662 | } | |
663 | ||
664 | if (old_priv.identity != priv->identity || | |
665 | old_priv.model_id != priv->model_id || | |
666 | old_priv.capabilities != priv->capabilities || | |
667 | old_priv.ext_cap != priv->ext_cap) | |
668 | return -1; | |
669 | ||
670 | if (synaptics_set_absolute_mode(psmouse)) { | |
671 | printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); | |
672 | return -1; | |
673 | } | |
674 | ||
675 | return 0; | |
676 | } | |
677 | ||
7705d548 DT |
678 | static bool impaired_toshiba_kbc; |
679 | ||
680 | static const struct dmi_system_id __initconst toshiba_dmi_table[] = { | |
681 | #if defined(CONFIG_DMI) && defined(CONFIG_X86) | |
1da177e4 | 682 | { |
9961e259 | 683 | /* Toshiba Satellite */ |
1da177e4 LT |
684 | .matches = { |
685 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c | 686 | DMI_MATCH(DMI_PRODUCT_NAME, "Satellite"), |
1da177e4 LT |
687 | }, |
688 | }, | |
9ba5eaaf | 689 | { |
9961e259 | 690 | /* Toshiba Dynabook */ |
9ba5eaaf SH |
691 | .matches = { |
692 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
53a2670c RT |
693 | DMI_MATCH(DMI_PRODUCT_NAME, "dynabook"), |
694 | }, | |
695 | }, | |
696 | { | |
9961e259 | 697 | /* Toshiba Portege M300 */ |
53a2670c RT |
698 | .matches = { |
699 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
700 | DMI_MATCH(DMI_PRODUCT_NAME, "PORTEGE M300"), | |
9ba5eaaf | 701 | }, |
5f5eeff4 DT |
702 | |
703 | }, | |
704 | { | |
9961e259 | 705 | /* Toshiba Portege M300 */ |
5f5eeff4 DT |
706 | .matches = { |
707 | DMI_MATCH(DMI_SYS_VENDOR, "TOSHIBA"), | |
708 | DMI_MATCH(DMI_PRODUCT_NAME, "Portable PC"), | |
709 | DMI_MATCH(DMI_PRODUCT_VERSION, "Version 1.0"), | |
710 | }, | |
711 | ||
9ba5eaaf | 712 | }, |
1da177e4 | 713 | { } |
1da177e4 | 714 | #endif |
7705d548 DT |
715 | }; |
716 | ||
717 | void __init synaptics_module_init(void) | |
718 | { | |
719 | impaired_toshiba_kbc = dmi_check_system(toshiba_dmi_table); | |
720 | } | |
1da177e4 LT |
721 | |
722 | int synaptics_init(struct psmouse *psmouse) | |
723 | { | |
724 | struct synaptics_data *priv; | |
725 | ||
b39787a9 | 726 | psmouse->private = priv = kzalloc(sizeof(struct synaptics_data), GFP_KERNEL); |
1da177e4 LT |
727 | if (!priv) |
728 | return -1; | |
1da177e4 | 729 | |
4d368456 AW |
730 | psmouse_reset(psmouse); |
731 | ||
1da177e4 LT |
732 | if (synaptics_query_hardware(psmouse)) { |
733 | printk(KERN_ERR "Unable to query Synaptics hardware.\n"); | |
734 | goto init_fail; | |
735 | } | |
736 | ||
737 | if (synaptics_set_absolute_mode(psmouse)) { | |
738 | printk(KERN_ERR "Unable to initialize Synaptics hardware.\n"); | |
739 | goto init_fail; | |
740 | } | |
741 | ||
742 | priv->pkt_type = SYN_MODEL_NEWABS(priv->model_id) ? SYN_NEWABS : SYN_OLDABS; | |
743 | ||
5f57d67d | 744 | printk(KERN_INFO "Synaptics Touchpad, model: %ld, fw: %ld.%ld, id: %#lx, caps: %#lx/%#lx/%#lx\n", |
409b7506 DT |
745 | SYN_ID_MODEL(priv->identity), |
746 | SYN_ID_MAJOR(priv->identity), SYN_ID_MINOR(priv->identity), | |
5f57d67d | 747 | priv->model_id, priv->capabilities, priv->ext_cap, priv->ext_cap_0c); |
409b7506 | 748 | |
2e5b636b | 749 | set_input_params(psmouse->dev, priv); |
1da177e4 | 750 | |
887cc127 DT |
751 | /* |
752 | * Encode touchpad model so that it can be used to set | |
753 | * input device->id.version and be visible to userspace. | |
754 | * Because version is __u16 we have to drop something. | |
755 | * Hardware info bits seem to be good candidates as they | |
756 | * are documented to be for Synaptics corp. internal use. | |
757 | */ | |
758 | psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) | | |
759 | (priv->model_id & 0x000000ff); | |
760 | ||
1da177e4 LT |
761 | psmouse->protocol_handler = synaptics_process_byte; |
762 | psmouse->set_rate = synaptics_set_rate; | |
763 | psmouse->disconnect = synaptics_disconnect; | |
764 | psmouse->reconnect = synaptics_reconnect; | |
a1cec061 | 765 | psmouse->cleanup = synaptics_reset; |
1da177e4 | 766 | psmouse->pktsize = 6; |
f0d5c6f4 DT |
767 | /* Synaptics can usually stay in sync without extra help */ |
768 | psmouse->resync_time = 0; | |
1da177e4 LT |
769 | |
770 | if (SYN_CAP_PASS_THROUGH(priv->capabilities)) | |
771 | synaptics_pt_create(psmouse); | |
772 | ||
1da177e4 LT |
773 | /* |
774 | * Toshiba's KBC seems to have trouble handling data from | |
775 | * Synaptics as full rate, switch to lower rate which is roughly | |
776 | * thye same as rate of standard PS/2 mouse. | |
777 | */ | |
7705d548 | 778 | if (psmouse->rate >= 80 && impaired_toshiba_kbc) { |
9ba5eaaf SH |
779 | printk(KERN_INFO "synaptics: Toshiba %s detected, limiting rate to 40pps.\n", |
780 | dmi_get_system_info(DMI_PRODUCT_NAME)); | |
1da177e4 LT |
781 | psmouse->rate = 40; |
782 | } | |
1da177e4 LT |
783 | |
784 | return 0; | |
785 | ||
786 | init_fail: | |
787 | kfree(priv); | |
788 | return -1; | |
789 | } | |
790 | ||
e4e6efd2 DD |
791 | bool synaptics_supported(void) |
792 | { | |
793 | return true; | |
794 | } | |
795 | ||
55e3d922 AS |
796 | #else /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
797 | ||
7705d548 DT |
798 | void __init synaptics_module_init(void) |
799 | { | |
800 | } | |
801 | ||
55e3d922 AS |
802 | int synaptics_init(struct psmouse *psmouse) |
803 | { | |
804 | return -ENOSYS; | |
805 | } | |
806 | ||
e4e6efd2 DD |
807 | bool synaptics_supported(void) |
808 | { | |
809 | return false; | |
810 | } | |
811 | ||
55e3d922 | 812 | #endif /* CONFIG_MOUSE_PS2_SYNAPTICS */ |
1da177e4 | 813 |