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1da177e4 LT |
1 | /* |
2 | * Logitech PS/2++ mouse driver | |
3 | * | |
4 | * Copyright (c) 1999-2003 Vojtech Pavlik <vojtech@suse.cz> | |
5 | * Copyright (c) 2003 Eric Wong <eric@yhbt.net> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License version 2 as published by | |
9 | * the Free Software Foundation. | |
10 | */ | |
11 | ||
12 | #include <linux/input.h> | |
13 | #include <linux/serio.h> | |
14 | #include <linux/libps2.h> | |
15 | #include "psmouse.h" | |
16 | #include "logips2pp.h" | |
17 | ||
18 | /* Logitech mouse types */ | |
19 | #define PS2PP_KIND_WHEEL 1 | |
20 | #define PS2PP_KIND_MX 2 | |
21 | #define PS2PP_KIND_TP3 3 | |
22 | ||
23 | /* Logitech mouse features */ | |
24 | #define PS2PP_WHEEL 0x01 | |
25 | #define PS2PP_HWHEEL 0x02 | |
26 | #define PS2PP_SIDE_BTN 0x04 | |
27 | #define PS2PP_EXTRA_BTN 0x08 | |
28 | #define PS2PP_TASK_BTN 0x10 | |
29 | #define PS2PP_NAV_BTN 0x20 | |
30 | ||
31 | struct ps2pp_info { | |
32 | const int model; | |
33 | unsigned const int kind; | |
34 | unsigned const int features; | |
35 | }; | |
36 | ||
37 | /* | |
38 | * Process a PS2++ or PS2T++ packet. | |
39 | */ | |
40 | ||
41 | static psmouse_ret_t ps2pp_process_byte(struct psmouse *psmouse, struct pt_regs *regs) | |
42 | { | |
43 | struct input_dev *dev = &psmouse->dev; | |
44 | unsigned char *packet = psmouse->packet; | |
45 | ||
46 | if (psmouse->pktcnt < 3) | |
47 | return PSMOUSE_GOOD_DATA; | |
48 | ||
49 | /* | |
50 | * Full packet accumulated, process it | |
51 | */ | |
52 | ||
53 | input_regs(dev, regs); | |
54 | ||
55 | if ((packet[0] & 0x48) == 0x48 && (packet[1] & 0x02) == 0x02) { | |
56 | ||
57 | /* Logitech extended packet */ | |
58 | switch ((packet[1] >> 4) | (packet[0] & 0x30)) { | |
59 | ||
60 | case 0x0d: /* Mouse extra info */ | |
61 | ||
62 | input_report_rel(dev, packet[2] & 0x80 ? REL_HWHEEL : REL_WHEEL, | |
63 | (int) (packet[2] & 8) - (int) (packet[2] & 7)); | |
64 | input_report_key(dev, BTN_SIDE, (packet[2] >> 4) & 1); | |
65 | input_report_key(dev, BTN_EXTRA, (packet[2] >> 5) & 1); | |
66 | ||
67 | break; | |
68 | ||
69 | case 0x0e: /* buttons 4, 5, 6, 7, 8, 9, 10 info */ | |
70 | ||
71 | input_report_key(dev, BTN_SIDE, (packet[2]) & 1); | |
72 | input_report_key(dev, BTN_EXTRA, (packet[2] >> 1) & 1); | |
73 | input_report_key(dev, BTN_BACK, (packet[2] >> 3) & 1); | |
74 | input_report_key(dev, BTN_FORWARD, (packet[2] >> 4) & 1); | |
75 | input_report_key(dev, BTN_TASK, (packet[2] >> 2) & 1); | |
76 | ||
77 | break; | |
78 | ||
79 | case 0x0f: /* TouchPad extra info */ | |
80 | ||
81 | input_report_rel(dev, packet[2] & 0x08 ? REL_HWHEEL : REL_WHEEL, | |
82 | (int) ((packet[2] >> 4) & 8) - (int) ((packet[2] >> 4) & 7)); | |
83 | packet[0] = packet[2] | 0x08; | |
84 | break; | |
85 | ||
86 | #ifdef DEBUG | |
87 | default: | |
88 | printk(KERN_WARNING "psmouse.c: Received PS2++ packet #%x, but don't know how to handle.\n", | |
89 | (packet[1] >> 4) | (packet[0] & 0x30)); | |
90 | #endif | |
91 | } | |
92 | } else { | |
93 | /* Standard PS/2 motion data */ | |
94 | input_report_rel(dev, REL_X, packet[1] ? (int) packet[1] - (int) ((packet[0] << 4) & 0x100) : 0); | |
95 | input_report_rel(dev, REL_Y, packet[2] ? (int) ((packet[0] << 3) & 0x100) - (int) packet[2] : 0); | |
96 | } | |
97 | ||
98 | input_report_key(dev, BTN_LEFT, packet[0] & 1); | |
99 | input_report_key(dev, BTN_MIDDLE, (packet[0] >> 2) & 1); | |
100 | input_report_key(dev, BTN_RIGHT, (packet[0] >> 1) & 1); | |
101 | ||
102 | input_sync(dev); | |
103 | ||
104 | return PSMOUSE_FULL_PACKET; | |
105 | ||
106 | } | |
107 | ||
108 | /* | |
109 | * ps2pp_cmd() sends a PS2++ command, sliced into two bit | |
110 | * pieces through the SETRES command. This is needed to send extended | |
111 | * commands to mice on notebooks that try to understand the PS/2 protocol | |
112 | * Ugly. | |
113 | */ | |
114 | ||
115 | static int ps2pp_cmd(struct psmouse *psmouse, unsigned char *param, unsigned char command) | |
116 | { | |
117 | if (psmouse_sliced_command(psmouse, command)) | |
118 | return -1; | |
119 | ||
120 | if (ps2_command(&psmouse->ps2dev, param, PSMOUSE_CMD_POLL)) | |
121 | return -1; | |
122 | ||
123 | return 0; | |
124 | } | |
125 | ||
126 | /* | |
127 | * SmartScroll / CruiseControl for some newer Logitech mice Defaults to | |
128 | * enabled if we do nothing to it. Of course I put this in because I want it | |
129 | * disabled :P | |
130 | * 1 - enabled (if previously disabled, also default) | |
131 | * 0 - disabled | |
132 | */ | |
133 | ||
134 | static void ps2pp_set_smartscroll(struct psmouse *psmouse, unsigned int smartscroll) | |
135 | { | |
136 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
137 | unsigned char param[4]; | |
138 | ||
139 | if (smartscroll > 1) | |
140 | smartscroll = 1; | |
141 | ||
142 | ps2pp_cmd(psmouse, param, 0x32); | |
143 | ||
144 | param[0] = 0; | |
145 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
146 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
147 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
148 | ||
149 | param[0] = smartscroll; | |
150 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
151 | } | |
152 | ||
153 | static ssize_t psmouse_attr_show_smartscroll(struct psmouse *psmouse, char *buf) | |
154 | { | |
155 | return sprintf(buf, "%d\n", psmouse->smartscroll ? 1 : 0); | |
156 | } | |
157 | ||
158 | static ssize_t psmouse_attr_set_smartscroll(struct psmouse *psmouse, const char *buf, size_t count) | |
159 | { | |
160 | unsigned long value; | |
161 | char *rest; | |
162 | ||
163 | value = simple_strtoul(buf, &rest, 10); | |
164 | if (*rest || value > 1) | |
165 | return -EINVAL; | |
166 | ||
167 | ps2pp_set_smartscroll(psmouse, value); | |
168 | psmouse->smartscroll = value; | |
169 | return count; | |
170 | } | |
171 | ||
172 | PSMOUSE_DEFINE_ATTR(smartscroll); | |
173 | ||
174 | /* | |
175 | * Support 800 dpi resolution _only_ if the user wants it (there are good | |
176 | * reasons to not use it even if the mouse supports it, and of course there are | |
177 | * also good reasons to use it, let the user decide). | |
178 | */ | |
179 | ||
180 | static void ps2pp_set_resolution(struct psmouse *psmouse, unsigned int resolution) | |
181 | { | |
182 | if (resolution > 400) { | |
183 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
184 | unsigned char param = 3; | |
185 | ||
186 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
187 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
188 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
189 | ps2_command(ps2dev, ¶m, PSMOUSE_CMD_SETRES); | |
190 | psmouse->resolution = 800; | |
191 | } else | |
192 | psmouse_set_resolution(psmouse, resolution); | |
193 | } | |
194 | ||
195 | static void ps2pp_disconnect(struct psmouse *psmouse) | |
196 | { | |
197 | device_remove_file(&psmouse->ps2dev.serio->dev, &psmouse_attr_smartscroll); | |
198 | } | |
199 | ||
200 | static struct ps2pp_info *get_model_info(unsigned char model) | |
201 | { | |
202 | static struct ps2pp_info ps2pp_list[] = { | |
203 | { 12, 0, PS2PP_SIDE_BTN}, | |
204 | { 13, 0, 0 }, | |
205 | { 15, PS2PP_KIND_MX, /* MX1000 */ | |
206 | PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN | | |
207 | PS2PP_EXTRA_BTN | PS2PP_NAV_BTN | PS2PP_HWHEEL }, | |
208 | { 40, 0, PS2PP_SIDE_BTN }, | |
209 | { 41, 0, PS2PP_SIDE_BTN }, | |
210 | { 42, 0, PS2PP_SIDE_BTN }, | |
211 | { 43, 0, PS2PP_SIDE_BTN }, | |
212 | { 50, 0, 0 }, | |
213 | { 51, 0, 0 }, | |
214 | { 52, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL }, | |
215 | { 53, PS2PP_KIND_WHEEL, PS2PP_WHEEL }, | |
216 | { 61, PS2PP_KIND_MX, /* MX700 */ | |
217 | PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN | | |
218 | PS2PP_EXTRA_BTN | PS2PP_NAV_BTN }, | |
219 | { 73, 0, PS2PP_SIDE_BTN }, | |
220 | { 75, PS2PP_KIND_WHEEL, PS2PP_WHEEL }, | |
221 | { 76, PS2PP_KIND_WHEEL, PS2PP_WHEEL }, | |
222 | { 80, PS2PP_KIND_WHEEL, PS2PP_SIDE_BTN | PS2PP_WHEEL }, | |
223 | { 81, PS2PP_KIND_WHEEL, PS2PP_WHEEL }, | |
224 | { 83, PS2PP_KIND_WHEEL, PS2PP_WHEEL }, | |
225 | { 88, PS2PP_KIND_WHEEL, PS2PP_WHEEL }, | |
226 | { 96, 0, 0 }, | |
227 | { 97, PS2PP_KIND_TP3, PS2PP_WHEEL | PS2PP_HWHEEL }, | |
228 | { 100, PS2PP_KIND_MX, /* MX510 */ | |
229 | PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN | | |
230 | PS2PP_EXTRA_BTN | PS2PP_NAV_BTN }, | |
231 | { 111, PS2PP_KIND_MX, /* MX300 */ | |
232 | PS2PP_WHEEL | PS2PP_EXTRA_BTN | PS2PP_TASK_BTN }, | |
233 | { 112, PS2PP_KIND_MX, /* MX500 */ | |
234 | PS2PP_WHEEL | PS2PP_SIDE_BTN | PS2PP_TASK_BTN | | |
235 | PS2PP_EXTRA_BTN | PS2PP_NAV_BTN }, | |
236 | { 114, PS2PP_KIND_MX, /* MX310 */ | |
237 | PS2PP_WHEEL | PS2PP_SIDE_BTN | | |
238 | PS2PP_TASK_BTN | PS2PP_EXTRA_BTN }, | |
239 | { } | |
240 | }; | |
241 | int i; | |
242 | ||
243 | for (i = 0; ps2pp_list[i].model; i++) | |
244 | if (model == ps2pp_list[i].model) | |
245 | return &ps2pp_list[i]; | |
246 | ||
247 | printk(KERN_WARNING "logips2pp: Detected unknown logitech mouse model %d\n", model); | |
248 | return NULL; | |
249 | } | |
250 | ||
251 | /* | |
252 | * Set up input device's properties based on the detected mouse model. | |
253 | */ | |
254 | ||
255 | static void ps2pp_set_model_properties(struct psmouse *psmouse, struct ps2pp_info *model_info, | |
256 | int using_ps2pp) | |
257 | { | |
258 | if (model_info->features & PS2PP_SIDE_BTN) | |
259 | set_bit(BTN_SIDE, psmouse->dev.keybit); | |
260 | ||
261 | if (model_info->features & PS2PP_EXTRA_BTN) | |
262 | set_bit(BTN_EXTRA, psmouse->dev.keybit); | |
263 | ||
264 | if (model_info->features & PS2PP_TASK_BTN) | |
265 | set_bit(BTN_TASK, psmouse->dev.keybit); | |
266 | ||
267 | if (model_info->features & PS2PP_NAV_BTN) { | |
268 | set_bit(BTN_FORWARD, psmouse->dev.keybit); | |
269 | set_bit(BTN_BACK, psmouse->dev.keybit); | |
270 | } | |
271 | ||
272 | if (model_info->features & PS2PP_WHEEL) | |
273 | set_bit(REL_WHEEL, psmouse->dev.relbit); | |
274 | ||
275 | if (model_info->features & PS2PP_HWHEEL) | |
276 | set_bit(REL_HWHEEL, psmouse->dev.relbit); | |
277 | ||
278 | switch (model_info->kind) { | |
279 | case PS2PP_KIND_WHEEL: | |
280 | psmouse->name = "Wheel Mouse"; | |
281 | break; | |
282 | ||
283 | case PS2PP_KIND_MX: | |
284 | psmouse->name = "MX Mouse"; | |
285 | break; | |
286 | ||
287 | case PS2PP_KIND_TP3: | |
288 | psmouse->name = "TouchPad 3"; | |
289 | break; | |
290 | ||
291 | default: | |
292 | /* | |
293 | * Set name to "Mouse" only when using PS2++, | |
294 | * otherwise let other protocols define suitable | |
295 | * name | |
296 | */ | |
297 | if (using_ps2pp) | |
298 | psmouse->name = "Mouse"; | |
299 | break; | |
300 | } | |
301 | } | |
302 | ||
303 | ||
304 | /* | |
305 | * Logitech magic init. Detect whether the mouse is a Logitech one | |
306 | * and its exact model and try turning on extended protocol for ones | |
307 | * that support it. | |
308 | */ | |
309 | ||
310 | int ps2pp_init(struct psmouse *psmouse, int set_properties) | |
311 | { | |
312 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
313 | unsigned char param[4]; | |
314 | unsigned char model, buttons; | |
315 | struct ps2pp_info *model_info; | |
316 | int use_ps2pp = 0; | |
317 | ||
318 | param[0] = 0; | |
319 | ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES); | |
320 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
321 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
322 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11); | |
323 | param[1] = 0; | |
324 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO); | |
325 | ||
326 | if (!param[1]) | |
327 | return -1; | |
328 | ||
329 | model = ((param[0] >> 4) & 0x07) | ((param[0] << 3) & 0x78); | |
330 | buttons = param[1]; | |
331 | ||
332 | if ((model_info = get_model_info(model)) != NULL) { | |
333 | ||
334 | /* | |
335 | * Do Logitech PS2++ / PS2T++ magic init. | |
336 | */ | |
337 | if (model == 97) { /* Touch Pad 3 */ | |
338 | ||
339 | /* Unprotect RAM */ | |
340 | param[0] = 0x11; param[1] = 0x04; param[2] = 0x68; | |
341 | ps2_command(ps2dev, param, 0x30d1); | |
342 | /* Enable features */ | |
343 | param[0] = 0x11; param[1] = 0x05; param[2] = 0x0b; | |
344 | ps2_command(ps2dev, param, 0x30d1); | |
345 | /* Enable PS2++ */ | |
346 | param[0] = 0x11; param[1] = 0x09; param[2] = 0xc3; | |
347 | ps2_command(ps2dev, param, 0x30d1); | |
348 | ||
349 | param[0] = 0; | |
350 | if (!ps2_command(ps2dev, param, 0x13d1) && | |
351 | param[0] == 0x06 && param[1] == 0x00 && param[2] == 0x14) { | |
352 | use_ps2pp = 1; | |
353 | } | |
354 | ||
355 | } else { | |
356 | ||
357 | param[0] = param[1] = param[2] = 0; | |
358 | ps2pp_cmd(psmouse, param, 0x39); /* Magic knock */ | |
359 | ps2pp_cmd(psmouse, param, 0xDB); | |
360 | ||
361 | if ((param[0] & 0x78) == 0x48 && | |
362 | (param[1] & 0xf3) == 0xc2 && | |
363 | (param[2] & 0x03) == ((param[1] >> 2) & 3)) { | |
364 | ps2pp_set_smartscroll(psmouse, psmouse->smartscroll); | |
365 | use_ps2pp = 1; | |
366 | } | |
367 | } | |
368 | } | |
369 | ||
370 | if (set_properties) { | |
371 | psmouse->vendor = "Logitech"; | |
372 | psmouse->model = model; | |
373 | ||
374 | if (use_ps2pp) { | |
375 | psmouse->protocol_handler = ps2pp_process_byte; | |
376 | psmouse->pktsize = 3; | |
377 | ||
378 | if (model_info->kind != PS2PP_KIND_TP3) { | |
379 | psmouse->set_resolution = ps2pp_set_resolution; | |
380 | psmouse->disconnect = ps2pp_disconnect; | |
381 | ||
382 | device_create_file(&psmouse->ps2dev.serio->dev, &psmouse_attr_smartscroll); | |
383 | } | |
384 | } | |
385 | ||
386 | if (buttons < 3) | |
387 | clear_bit(BTN_MIDDLE, psmouse->dev.keybit); | |
388 | if (buttons < 2) | |
389 | clear_bit(BTN_RIGHT, psmouse->dev.keybit); | |
390 | ||
391 | if (model_info) | |
392 | ps2pp_set_model_properties(psmouse, model_info, use_ps2pp); | |
393 | } | |
394 | ||
395 | return use_ps2pp ? 0 : -1; | |
396 | } | |
397 |