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-rw-r--r--drivers/input/mouse/logips2pp.c397
1 files changed, 397 insertions, 0 deletions
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
new file mode 100644
index 000000000000..5ab1bd7d529d
--- /dev/null
+++ b/drivers/input/mouse/logips2pp.c
@@ -0,0 +1,397 @@
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
31struct 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
41static 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
115static 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
134static 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
153static ssize_t psmouse_attr_show_smartscroll(struct psmouse *psmouse, char *buf)
154{
155 return sprintf(buf, "%d\n", psmouse->smartscroll ? 1 : 0);
156}
157
158static 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
172PSMOUSE_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
180static 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, &param, PSMOUSE_CMD_SETRES);
190 psmouse->resolution = 800;
191 } else
192 psmouse_set_resolution(psmouse, resolution);
193}
194
195static void ps2pp_disconnect(struct psmouse *psmouse)
196{
197 device_remove_file(&psmouse->ps2dev.serio->dev, &psmouse_attr_smartscroll);
198}
199
200static 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
255static 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
310int 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
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