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