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1da177e4 LT |
1 | /* |
2 | * ALPS touchpad PS/2 mouse driver | |
3 | * | |
4 | * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au> | |
5 | * Copyright (c) 2003 Peter Osterlund <petero2@telia.com> | |
6 | * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru> | |
7 | * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz> | |
8 | * | |
9 | * ALPS detection, tap switching and status querying info is taken from | |
10 | * tpconfig utility (by C. Scott Ananian and Bruce Kall). | |
11 | * | |
12 | * This program is free software; you can redistribute it and/or modify it | |
13 | * under the terms of the GNU General Public License version 2 as published by | |
14 | * the Free Software Foundation. | |
15 | */ | |
16 | ||
17 | #include <linux/input.h> | |
18 | #include <linux/serio.h> | |
19 | #include <linux/libps2.h> | |
20 | ||
21 | #include "psmouse.h" | |
22 | #include "alps.h" | |
23 | ||
24 | #undef DEBUG | |
25 | #ifdef DEBUG | |
26 | #define dbg(format, arg...) printk(KERN_INFO "alps.c: " format "\n", ## arg) | |
27 | #else | |
28 | #define dbg(format, arg...) do {} while (0) | |
29 | #endif | |
30 | ||
31 | #define ALPS_DUALPOINT 0x01 | |
32 | #define ALPS_WHEEL 0x02 | |
33 | #define ALPS_FW_BK 0x04 | |
34 | #define ALPS_4BTN 0x08 | |
35 | #define ALPS_OLDPROTO 0x10 | |
36 | #define ALPS_PASS 0x20 | |
37 | ||
38 | static struct alps_model_info alps_model_data[] = { | |
39 | { { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */ | |
40 | { { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, | |
41 | { { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, | |
42 | { { 0x63, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, | |
43 | { { 0x63, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, | |
44 | { { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, 0 }, | |
45 | { { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */ | |
46 | { { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK }, /* NEC Versa L320 */ | |
47 | { { 0x63, 0x02, 0x64 }, 0xf8, 0xf8, 0 }, | |
48 | { { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS }, /* Dell Latitude D800 */ | |
49 | { { 0x73, 0x02, 0x0a }, 0xf8, 0xf8, 0 }, | |
50 | { { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, 0 }, | |
51 | { { 0x20, 0x02, 0x0e }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */ | |
52 | { { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, | |
53 | { { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */ | |
54 | }; | |
55 | ||
56 | /* | |
57 | * XXX - this entry is suspicious. First byte has zero lower nibble, | |
58 | * which is what a normal mouse would report. Also, the value 0x0e | |
59 | * isn't valid per PS/2 spec. | |
60 | */ | |
61 | ||
62 | /* | |
63 | * ALPS abolute Mode - new format | |
64 | * | |
65 | * byte 0: 1 ? ? ? 1 ? ? ? | |
66 | * byte 1: 0 x6 x5 x4 x3 x2 x1 x0 | |
67 | * byte 2: 0 x10 x9 x8 x7 ? fin ges | |
68 | * byte 3: 0 y9 y8 y7 1 M R L | |
69 | * byte 4: 0 y6 y5 y4 y3 y2 y1 y0 | |
70 | * byte 5: 0 z6 z5 z4 z3 z2 z1 z0 | |
71 | * | |
72 | * ?'s can have different meanings on different models, | |
73 | * such as wheel rotation, extra buttons, stick buttons | |
74 | * on a dualpoint, etc. | |
75 | */ | |
76 | ||
77 | static void alps_process_packet(struct psmouse *psmouse, struct pt_regs *regs) | |
78 | { | |
79 | struct alps_data *priv = psmouse->private; | |
80 | unsigned char *packet = psmouse->packet; | |
81 | struct input_dev *dev = &psmouse->dev; | |
82 | struct input_dev *dev2 = &priv->dev2; | |
83 | int x, y, z, ges, fin, left, right, middle; | |
84 | ||
85 | input_regs(dev, regs); | |
86 | ||
87 | if ((packet[0] & 0xc8) == 0x08) { /* 3-byte PS/2 packet */ | |
88 | input_report_key(dev2, BTN_LEFT, packet[0] & 1); | |
89 | input_report_key(dev2, BTN_RIGHT, packet[0] & 2); | |
90 | input_report_key(dev2, BTN_MIDDLE, packet[0] & 4); | |
91 | input_report_rel(dev2, REL_X, | |
92 | packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0); | |
93 | input_report_rel(dev2, REL_Y, | |
94 | packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0); | |
95 | input_sync(dev2); | |
96 | return; | |
97 | } | |
98 | ||
99 | if (priv->i->flags & ALPS_OLDPROTO) { | |
100 | left = packet[2] & 0x08; | |
101 | right = packet[2] & 0x10; | |
102 | middle = 0; | |
103 | x = packet[1] | ((packet[0] & 0x07) << 7); | |
104 | y = packet[4] | ((packet[3] & 0x07) << 7); | |
105 | z = packet[5]; | |
106 | } else { | |
107 | left = packet[3] & 1; | |
108 | right = packet[3] & 2; | |
109 | middle = packet[3] & 4; | |
110 | x = packet[1] | ((packet[2] & 0x78) << (7 - 3)); | |
111 | y = packet[4] | ((packet[3] & 0x70) << (7 - 4)); | |
112 | z = packet[5]; | |
113 | } | |
114 | ||
115 | ges = packet[2] & 1; | |
116 | fin = packet[2] & 2; | |
117 | ||
118 | input_report_key(dev, BTN_LEFT, left); | |
119 | input_report_key(dev, BTN_RIGHT, right); | |
120 | input_report_key(dev, BTN_MIDDLE, middle); | |
121 | ||
122 | if ((priv->i->flags & ALPS_DUALPOINT) && z == 127) { | |
123 | input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x)); | |
124 | input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y)); | |
125 | input_sync(dev); | |
126 | input_sync(dev2); | |
127 | return; | |
128 | } | |
129 | ||
130 | /* Convert hardware tap to a reasonable Z value */ | |
131 | if (ges && !fin) z = 40; | |
132 | ||
133 | /* | |
134 | * A "tap and drag" operation is reported by the hardware as a transition | |
135 | * from (!fin && ges) to (fin && ges). This should be translated to the | |
136 | * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually. | |
137 | */ | |
138 | if (ges && fin && !priv->prev_fin) { | |
139 | input_report_abs(dev, ABS_X, x); | |
140 | input_report_abs(dev, ABS_Y, y); | |
141 | input_report_abs(dev, ABS_PRESSURE, 0); | |
142 | input_report_key(dev, BTN_TOOL_FINGER, 0); | |
143 | input_sync(dev); | |
144 | } | |
145 | priv->prev_fin = fin; | |
146 | ||
147 | if (z > 30) input_report_key(dev, BTN_TOUCH, 1); | |
148 | if (z < 25) input_report_key(dev, BTN_TOUCH, 0); | |
149 | ||
150 | if (z > 0) { | |
151 | input_report_abs(dev, ABS_X, x); | |
152 | input_report_abs(dev, ABS_Y, y); | |
153 | } | |
154 | ||
155 | input_report_abs(dev, ABS_PRESSURE, z); | |
156 | input_report_key(dev, BTN_TOOL_FINGER, z > 0); | |
157 | ||
158 | ||
159 | if (priv->i->flags & ALPS_WHEEL) | |
160 | input_report_rel(dev, REL_WHEEL, ((packet[0] >> 4) & 0x07) | ((packet[2] >> 2) & 0x08)); | |
161 | ||
162 | if (priv->i->flags & ALPS_FW_BK) { | |
163 | input_report_key(dev, BTN_FORWARD, packet[0] & 0x10); | |
164 | input_report_key(dev, BTN_BACK, packet[2] & 0x04); | |
165 | } | |
166 | ||
167 | input_sync(dev); | |
168 | } | |
169 | ||
170 | static psmouse_ret_t alps_process_byte(struct psmouse *psmouse, struct pt_regs *regs) | |
171 | { | |
172 | struct alps_data *priv = psmouse->private; | |
173 | ||
174 | if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */ | |
175 | if (psmouse->pktcnt == 3) { | |
176 | alps_process_packet(psmouse, regs); | |
177 | return PSMOUSE_FULL_PACKET; | |
178 | } | |
179 | return PSMOUSE_GOOD_DATA; | |
180 | } | |
181 | ||
182 | if ((psmouse->packet[0] & priv->i->mask0) != priv->i->byte0) | |
183 | return PSMOUSE_BAD_DATA; | |
184 | ||
185 | /* Bytes 2 - 6 should have 0 in the highest bit */ | |
186 | if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 && | |
187 | (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) | |
188 | return PSMOUSE_BAD_DATA; | |
189 | ||
190 | if (psmouse->pktcnt == 6) { | |
191 | alps_process_packet(psmouse, regs); | |
192 | return PSMOUSE_FULL_PACKET; | |
193 | } | |
194 | ||
195 | return PSMOUSE_GOOD_DATA; | |
196 | } | |
197 | ||
198 | static struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version) | |
199 | { | |
200 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
201 | unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 }; | |
202 | unsigned char param[4]; | |
203 | int i; | |
204 | ||
205 | /* | |
206 | * First try "E6 report". | |
207 | * ALPS should return 0,0,10 or 0,0,100 | |
208 | */ | |
209 | param[0] = 0; | |
210 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) || | |
211 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
212 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) || | |
213 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11)) | |
214 | return NULL; | |
215 | ||
216 | param[0] = param[1] = param[2] = 0xff; | |
217 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) | |
218 | return NULL; | |
219 | ||
220 | dbg("E6 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); | |
221 | ||
222 | if (param[0] != 0 || param[1] != 0 || (param[2] != 10 && param[2] != 100)) | |
223 | return NULL; | |
224 | ||
225 | /* | |
226 | * Now try "E7 report". Allowed responses are in | |
227 | * alps_model_data[].signature | |
228 | */ | |
229 | param[0] = 0; | |
230 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) || | |
231 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || | |
232 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) || | |
233 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21)) | |
234 | return NULL; | |
235 | ||
236 | param[0] = param[1] = param[2] = 0xff; | |
237 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) | |
238 | return NULL; | |
239 | ||
240 | dbg("E7 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); | |
241 | ||
242 | for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++); | |
243 | *version = (param[0] << 8) | (param[1] << 4) | i; | |
244 | ||
245 | for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) | |
246 | if (!memcmp(param, alps_model_data[i].signature, sizeof(alps_model_data[i].signature))) | |
247 | return alps_model_data + i; | |
248 | ||
249 | return NULL; | |
250 | } | |
251 | ||
252 | /* | |
253 | * For DualPoint devices select the device that should respond to | |
254 | * subsequent commands. It looks like glidepad is behind stickpointer, | |
255 | * I'd thought it would be other way around... | |
256 | */ | |
257 | static int alps_passthrough_mode(struct psmouse *psmouse, int enable) | |
258 | { | |
259 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
260 | unsigned char param[3]; | |
261 | int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11; | |
262 | ||
263 | if (ps2_command(ps2dev, NULL, cmd) || | |
264 | ps2_command(ps2dev, NULL, cmd) || | |
265 | ps2_command(ps2dev, NULL, cmd) || | |
266 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE)) | |
267 | return -1; | |
268 | ||
269 | /* we may get 3 more bytes, just ignore them */ | |
270 | ps2_command(ps2dev, param, 0x0300); | |
271 | ||
272 | return 0; | |
273 | } | |
274 | ||
275 | static int alps_absolute_mode(struct psmouse *psmouse) | |
276 | { | |
277 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
278 | ||
279 | /* Try ALPS magic knock - 4 disable before enable */ | |
280 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
281 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
282 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
283 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
284 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) | |
285 | return -1; | |
286 | ||
287 | /* | |
288 | * Switch mouse to poll (remote) mode so motion data will not | |
289 | * get in our way | |
290 | */ | |
291 | return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL); | |
292 | } | |
293 | ||
294 | static int alps_get_status(struct psmouse *psmouse, char *param) | |
295 | { | |
296 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
297 | ||
298 | /* Get status: 0xF5 0xF5 0xF5 0xE9 */ | |
299 | if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
300 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
301 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
302 | ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) | |
303 | return -1; | |
304 | ||
305 | dbg("Status: %2.2x %2.2x %2.2x", param[0], param[1], param[2]); | |
306 | ||
307 | return 0; | |
308 | } | |
309 | ||
310 | /* | |
311 | * Turn touchpad tapping on or off. The sequences are: | |
312 | * 0xE9 0xF5 0xF5 0xF3 0x0A to enable, | |
313 | * 0xE9 0xF5 0xF5 0xE8 0x00 to disable. | |
314 | * My guess that 0xE9 (GetInfo) is here as a sync point. | |
315 | * For models that also have stickpointer (DualPoints) its tapping | |
316 | * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but | |
317 | * we don't fiddle with it. | |
318 | */ | |
319 | static int alps_tap_mode(struct psmouse *psmouse, int enable) | |
320 | { | |
321 | struct ps2dev *ps2dev = &psmouse->ps2dev; | |
322 | int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES; | |
323 | unsigned char tap_arg = enable ? 0x0A : 0x00; | |
324 | unsigned char param[4]; | |
325 | ||
326 | if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) || | |
327 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
328 | ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) || | |
329 | ps2_command(ps2dev, &tap_arg, cmd)) | |
330 | return -1; | |
331 | ||
332 | if (alps_get_status(psmouse, param)) | |
333 | return -1; | |
334 | ||
335 | return 0; | |
336 | } | |
337 | ||
338 | static int alps_reconnect(struct psmouse *psmouse) | |
339 | { | |
340 | struct alps_data *priv = psmouse->private; | |
341 | unsigned char param[4]; | |
342 | int version; | |
343 | ||
f3a5c73d DT |
344 | psmouse_reset(psmouse); |
345 | ||
1da177e4 LT |
346 | if (!(priv->i = alps_get_model(psmouse, &version))) |
347 | return -1; | |
348 | ||
349 | if (priv->i->flags & ALPS_PASS && alps_passthrough_mode(psmouse, 1)) | |
350 | return -1; | |
351 | ||
352 | if (alps_get_status(psmouse, param)) | |
353 | return -1; | |
354 | ||
355 | if (param[0] & 0x04) | |
356 | alps_tap_mode(psmouse, 1); | |
357 | ||
358 | if (alps_absolute_mode(psmouse)) { | |
359 | printk(KERN_ERR "alps.c: Failed to enable absolute mode\n"); | |
360 | return -1; | |
361 | } | |
362 | ||
363 | if (priv->i->flags == ALPS_PASS && alps_passthrough_mode(psmouse, 0)) | |
364 | return -1; | |
365 | ||
366 | return 0; | |
367 | } | |
368 | ||
369 | static void alps_disconnect(struct psmouse *psmouse) | |
370 | { | |
371 | struct alps_data *priv = psmouse->private; | |
372 | psmouse_reset(psmouse); | |
373 | input_unregister_device(&priv->dev2); | |
374 | kfree(priv); | |
375 | } | |
376 | ||
377 | int alps_init(struct psmouse *psmouse) | |
378 | { | |
379 | struct alps_data *priv; | |
380 | unsigned char param[4]; | |
381 | int version; | |
382 | ||
383 | psmouse->private = priv = kmalloc(sizeof(struct alps_data), GFP_KERNEL); | |
384 | if (!priv) | |
385 | goto init_fail; | |
386 | memset(priv, 0, sizeof(struct alps_data)); | |
387 | ||
388 | if (!(priv->i = alps_get_model(psmouse, &version))) | |
389 | goto init_fail; | |
390 | ||
391 | if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 1)) | |
392 | goto init_fail; | |
393 | ||
394 | if (alps_get_status(psmouse, param)) { | |
395 | printk(KERN_ERR "alps.c: touchpad status report request failed\n"); | |
396 | goto init_fail; | |
397 | } | |
398 | ||
399 | if (param[0] & 0x04) { | |
64b14d37 | 400 | printk(KERN_INFO "alps.c: Enabling hardware tapping\n"); |
1da177e4 LT |
401 | if (alps_tap_mode(psmouse, 1)) |
402 | printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n"); | |
403 | } | |
404 | ||
405 | if (alps_absolute_mode(psmouse)) { | |
406 | printk(KERN_ERR "alps.c: Failed to enable absolute mode\n"); | |
407 | goto init_fail; | |
408 | } | |
409 | ||
410 | if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 0)) | |
411 | goto init_fail; | |
412 | ||
413 | psmouse->dev.evbit[LONG(EV_KEY)] |= BIT(EV_KEY); | |
414 | psmouse->dev.keybit[LONG(BTN_TOUCH)] |= BIT(BTN_TOUCH); | |
415 | psmouse->dev.keybit[LONG(BTN_TOOL_FINGER)] |= BIT(BTN_TOOL_FINGER); | |
416 | psmouse->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT); | |
417 | ||
418 | psmouse->dev.evbit[LONG(EV_ABS)] |= BIT(EV_ABS); | |
419 | input_set_abs_params(&psmouse->dev, ABS_X, 0, 1023, 0, 0); | |
420 | input_set_abs_params(&psmouse->dev, ABS_Y, 0, 767, 0, 0); | |
421 | input_set_abs_params(&psmouse->dev, ABS_PRESSURE, 0, 127, 0, 0); | |
422 | ||
423 | if (priv->i->flags & ALPS_WHEEL) { | |
424 | psmouse->dev.evbit[LONG(EV_REL)] |= BIT(EV_REL); | |
425 | psmouse->dev.relbit[LONG(REL_WHEEL)] |= BIT(REL_WHEEL); | |
426 | } | |
427 | ||
428 | if (priv->i->flags & ALPS_FW_BK) { | |
429 | psmouse->dev.keybit[LONG(BTN_FORWARD)] |= BIT(BTN_FORWARD); | |
430 | psmouse->dev.keybit[LONG(BTN_BACK)] |= BIT(BTN_BACK); | |
431 | } | |
432 | ||
433 | sprintf(priv->phys, "%s/input1", psmouse->ps2dev.serio->phys); | |
434 | priv->dev2.phys = priv->phys; | |
435 | priv->dev2.name = (priv->i->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse"; | |
436 | priv->dev2.id.bustype = BUS_I8042; | |
437 | priv->dev2.id.vendor = 0x0002; | |
438 | priv->dev2.id.product = PSMOUSE_ALPS; | |
439 | priv->dev2.id.version = 0x0000; | |
440 | ||
441 | priv->dev2.evbit[0] = BIT(EV_KEY) | BIT(EV_REL); | |
442 | priv->dev2.relbit[LONG(REL_X)] |= BIT(REL_X) | BIT(REL_Y); | |
443 | priv->dev2.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_MIDDLE) | BIT(BTN_RIGHT); | |
444 | ||
445 | input_register_device(&priv->dev2); | |
446 | ||
447 | printk(KERN_INFO "input: %s on %s\n", priv->dev2.name, psmouse->ps2dev.serio->phys); | |
448 | ||
449 | psmouse->protocol_handler = alps_process_byte; | |
450 | psmouse->disconnect = alps_disconnect; | |
451 | psmouse->reconnect = alps_reconnect; | |
452 | psmouse->pktsize = 6; | |
453 | ||
454 | return 0; | |
455 | ||
456 | init_fail: | |
457 | kfree(priv); | |
458 | return -1; | |
459 | } | |
460 | ||
461 | int alps_detect(struct psmouse *psmouse, int set_properties) | |
462 | { | |
463 | int version; | |
464 | struct alps_model_info *model; | |
465 | ||
466 | if (!(model = alps_get_model(psmouse, &version))) | |
467 | return -1; | |
468 | ||
469 | if (set_properties) { | |
470 | psmouse->vendor = "ALPS"; | |
471 | if (model->flags & ALPS_DUALPOINT) | |
472 | psmouse->name = "DualPoint TouchPad"; | |
473 | else | |
474 | psmouse->name = "GlidePoint"; | |
475 | psmouse->model = version; | |
476 | } | |
477 | return 0; | |
478 | } | |
479 |