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Input: ALPS - put secondary device in proper place in sysfs
[deliverable/linux.git] / drivers / input / mouse / alps.c
CommitLineData
1da177e4
LT		 1/*
2 * ALPS touchpad PS/2 mouse driver
3 *
4 * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au>
963f626d 5 * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com>
1da177e4
LT		 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
c30b4c10 33#define ALPS_FW_BK_1 0x04
1da177e4
LT		 34#define ALPS_4BTN 0x08
35#define ALPS_OLDPROTO 0x10
36#define ALPS_PASS 0x20
c30b4c10 37#define ALPS_FW_BK_2 0x40
1da177e4 38
e38de678 39static const struct alps_model_info alps_model_data[] = {
1da177e4
LT		 40 { { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */
41 { { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
42 { { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
f5e9c9ca 43 { { 0x60, 0x03, 0xc8 }, 0xf8, 0xf8, 0 }, /* HP ze1115 */
1da177e4
LT		 44 { { 0x63, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
45 { { 0x63, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
ea54c96c 46 { { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */
1da177e4 47 { { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */
c30b4c10 48 { { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */
1da177e4
LT		 49 { { 0x63, 0x02, 0x64 }, 0xf8, 0xf8, 0 },
50 { { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS }, /* Dell Latitude D800 */
f493018e 51 { { 0x73, 0x00, 0x0a }, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */
1da177e4 52 { { 0x73, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
c30b4c10 53 { { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */
1da177e4
LT		 54 { { 0x20, 0x02, 0x0e }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */
55 { { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },
56 { { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */
fb491610 57 { { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FW_BK_1 } /* Dell Vostro 1400 */
1da177e4
LT		 58};
59
60/*
61 * XXX - this entry is suspicious. First byte has zero lower nibble,
62 * which is what a normal mouse would report. Also, the value 0x0e
63 * isn't valid per PS/2 spec.
64 */
65
66/*
67 * ALPS abolute Mode - new format
968ac842
DT		 68 *
69 * byte 0: 1 ? ? ? 1 ? ? ?
1da177e4
LT		 70 * byte 1: 0 x6 x5 x4 x3 x2 x1 x0
71 * byte 2: 0 x10 x9 x8 x7 ? fin ges
968ac842 72 * byte 3: 0 y9 y8 y7 1 M R L
1da177e4
LT		 73 * byte 4: 0 y6 y5 y4 y3 y2 y1 y0
74 * byte 5: 0 z6 z5 z4 z3 z2 z1 z0
75 *
76 * ?'s can have different meanings on different models,
77 * such as wheel rotation, extra buttons, stick buttons
78 * on a dualpoint, etc.
79 */
80
7d12e780 81static void alps_process_packet(struct psmouse *psmouse)
1da177e4
LT		 82{
83 struct alps_data *priv = psmouse->private;
84 unsigned char *packet = psmouse->packet;
2e5b636b
DT		 85 struct input_dev *dev = psmouse->dev;
86 struct input_dev *dev2 = priv->dev2;
1da177e4 87 int x, y, z, ges, fin, left, right, middle;
c30b4c10 88 int back = 0, forward = 0;
1da177e4 89
1da177e4 90 if ((packet[0] & 0xc8) == 0x08) { /* 3-byte PS/2 packet */
968ac842 91 input_report_key(dev2, BTN_LEFT, packet[0] & 1);
1da177e4
LT		 92 input_report_key(dev2, BTN_RIGHT, packet[0] & 2);
93 input_report_key(dev2, BTN_MIDDLE, packet[0] & 4);
94 input_report_rel(dev2, REL_X,
95 packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0);
96 input_report_rel(dev2, REL_Y,
97 packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0);
98 input_sync(dev2);
99 return;
100 }
101
102 if (priv->i->flags & ALPS_OLDPROTO) {
d2f4012f
YM		 103 left = packet[2] & 0x10;
104 right = packet[2] & 0x08;
1da177e4
LT		 105 middle = 0;
106 x = packet[1] | ((packet[0] & 0x07) << 7);
107 y = packet[4] | ((packet[3] & 0x07) << 7);
108 z = packet[5];
109 } else {
110 left = packet[3] & 1;
111 right = packet[3] & 2;
112 middle = packet[3] & 4;
113 x = packet[1] | ((packet[2] & 0x78) << (7 - 3));
114 y = packet[4] | ((packet[3] & 0x70) << (7 - 4));
115 z = packet[5];
116 }
117
c30b4c10
ICR		 118 if (priv->i->flags & ALPS_FW_BK_1) {
119 back = packet[2] & 4;
120 forward = packet[0] & 0x10;
121 }
122
123 if (priv->i->flags & ALPS_FW_BK_2) {
124 back = packet[3] & 4;
125 forward = packet[2] & 4;
126 if ((middle = forward && back))
127 forward = back = 0;
128 }
129
1da177e4
LT		 130 ges = packet[2] & 1;
131 fin = packet[2] & 2;
132
133 input_report_key(dev, BTN_LEFT, left);
134 input_report_key(dev, BTN_RIGHT, right);
135 input_report_key(dev, BTN_MIDDLE, middle);
136
137 if ((priv->i->flags & ALPS_DUALPOINT) && z == 127) {
138 input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x));
139 input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y));
140 input_sync(dev);
141 input_sync(dev2);
142 return;
143 }
144
145 /* Convert hardware tap to a reasonable Z value */
146 if (ges && !fin) z = 40;
147
148 /*
149 * A "tap and drag" operation is reported by the hardware as a transition
150 * from (!fin && ges) to (fin && ges). This should be translated to the
151 * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually.
152 */
153 if (ges && fin && !priv->prev_fin) {
154 input_report_abs(dev, ABS_X, x);
155 input_report_abs(dev, ABS_Y, y);
156 input_report_abs(dev, ABS_PRESSURE, 0);
157 input_report_key(dev, BTN_TOOL_FINGER, 0);
158 input_sync(dev);
159 }
160 priv->prev_fin = fin;
161
162 if (z > 30) input_report_key(dev, BTN_TOUCH, 1);
163 if (z < 25) input_report_key(dev, BTN_TOUCH, 0);
164
165 if (z > 0) {
166 input_report_abs(dev, ABS_X, x);
167 input_report_abs(dev, ABS_Y, y);
168 }
169
170 input_report_abs(dev, ABS_PRESSURE, z);
171 input_report_key(dev, BTN_TOOL_FINGER, z > 0);
172
1da177e4 173 if (priv->i->flags & ALPS_WHEEL)
e6c047b9 174 input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07));
1da177e4 175
c30b4c10
ICR		 176 if (priv->i->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
177 input_report_key(dev, BTN_FORWARD, forward);
178 input_report_key(dev, BTN_BACK, back);
1da177e4
LT		 179 }
180
181 input_sync(dev);
182}
183
7d12e780 184static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
1da177e4
LT		 185{
186 struct alps_data *priv = psmouse->private;
187
188 if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */
189 if (psmouse->pktcnt == 3) {
7d12e780 190 alps_process_packet(psmouse);
1da177e4
LT		 191 return PSMOUSE_FULL_PACKET;
192 }
193 return PSMOUSE_GOOD_DATA;
194 }
195
196 if ((psmouse->packet[0] & priv->i->mask0) != priv->i->byte0)
197 return PSMOUSE_BAD_DATA;
198
199 /* Bytes 2 - 6 should have 0 in the highest bit */
200 if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 &&
201 (psmouse->packet[psmouse->pktcnt - 1] & 0x80))
202 return PSMOUSE_BAD_DATA;
203
204 if (psmouse->pktcnt == 6) {
7d12e780 205 alps_process_packet(psmouse);
1da177e4
LT		 206 return PSMOUSE_FULL_PACKET;
207 }
208
209 return PSMOUSE_GOOD_DATA;
210}
211
e38de678 212static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
1da177e4
LT		 213{
214 struct ps2dev *ps2dev = &psmouse->ps2dev;
e38de678 215 static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
1da177e4
LT		 216 unsigned char param[4];
217 int i;
218
219 /*
220 * First try "E6 report".
221 * ALPS should return 0,0,10 or 0,0,100
222 */
223 param[0] = 0;
224 if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
225 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
226 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
227 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11))
228 return NULL;
229
230 param[0] = param[1] = param[2] = 0xff;
231 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
232 return NULL;
233
234 dbg("E6 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
235
236 if (param[0] != 0 || param[1] != 0 || (param[2] != 10 && param[2] != 100))
237 return NULL;
238
239 /*
240 * Now try "E7 report". Allowed responses are in
241 * alps_model_data[].signature
242 */
243 param[0] = 0;
244 if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
245 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
246 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
247 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21))
248 return NULL;
249
250 param[0] = param[1] = param[2] = 0xff;
251 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
252 return NULL;
253
254 dbg("E7 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
255
1e0c5b12
DT		 256 if (version) {
257 for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++)
258 /* empty */;
259 *version = (param[0] << 8) | (param[1] << 4) | i;
260 }
1da177e4
LT		 261
262 for (i = 0; i < ARRAY_SIZE(alps_model_data); i++)
1e0c5b12
DT		 263 if (!memcmp(param, alps_model_data[i].signature,
264 sizeof(alps_model_data[i].signature)))
1da177e4
LT		 265 return alps_model_data + i;
266
267 return NULL;
268}
269
270/*
271 * For DualPoint devices select the device that should respond to
272 * subsequent commands. It looks like glidepad is behind stickpointer,
273 * I'd thought it would be other way around...
274 */
275static int alps_passthrough_mode(struct psmouse *psmouse, int enable)
276{
277 struct ps2dev *ps2dev = &psmouse->ps2dev;
1da177e4
LT		 278 int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11;
279
280 if (ps2_command(ps2dev, NULL, cmd) ||
281 ps2_command(ps2dev, NULL, cmd) ||
282 ps2_command(ps2dev, NULL, cmd) ||
283 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE))
284 return -1;
285
286 /* we may get 3 more bytes, just ignore them */
c611763d 287 ps2_drain(ps2dev, 3, 100);
1da177e4
LT		 288
289 return 0;
290}
291
292static int alps_absolute_mode(struct psmouse *psmouse)
293{
294 struct ps2dev *ps2dev = &psmouse->ps2dev;
295
296 /* Try ALPS magic knock - 4 disable before enable */
297 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
298 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
299 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
300 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
301 ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE))
302 return -1;
303
304 /*
305 * Switch mouse to poll (remote) mode so motion data will not
306 * get in our way
307 */
308 return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL);
309}
310
311static int alps_get_status(struct psmouse *psmouse, char *param)
312{
313 struct ps2dev *ps2dev = &psmouse->ps2dev;
314
315 /* Get status: 0xF5 0xF5 0xF5 0xE9 */
316 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
317 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
318 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
319 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
320 return -1;
321
322 dbg("Status: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
323
324 return 0;
325}
326
327/*
328 * Turn touchpad tapping on or off. The sequences are:
329 * 0xE9 0xF5 0xF5 0xF3 0x0A to enable,
330 * 0xE9 0xF5 0xF5 0xE8 0x00 to disable.
331 * My guess that 0xE9 (GetInfo) is here as a sync point.
332 * For models that also have stickpointer (DualPoints) its tapping
333 * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but
334 * we don't fiddle with it.
335 */
336static int alps_tap_mode(struct psmouse *psmouse, int enable)
337{
338 struct ps2dev *ps2dev = &psmouse->ps2dev;
339 int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES;
340 unsigned char tap_arg = enable ? 0x0A : 0x00;
341 unsigned char param[4];
342
343 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) ||
344 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
345 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
346 ps2_command(ps2dev, &tap_arg, cmd))
347 return -1;
348
349 if (alps_get_status(psmouse, param))
350 return -1;
351
352 return 0;
353}
354
f0d5c6f4
DT		 355/*
356 * alps_poll() - poll the touchpad for current motion packet.
357 * Used in resync.
358 */
359static int alps_poll(struct psmouse *psmouse)
360{
361 struct alps_data *priv = psmouse->private;
362 unsigned char buf[6];
363 int poll_failed;
364
365 if (priv->i->flags & ALPS_PASS)
366 alps_passthrough_mode(psmouse, 1);
367
368 poll_failed = ps2_command(&psmouse->ps2dev, buf,
369 PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0;
370
371 if (priv->i->flags & ALPS_PASS)
372 alps_passthrough_mode(psmouse, 0);
373
374 if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->byte0)
375 return -1;
376
377 if ((psmouse->badbyte & 0xc8) == 0x08) {
378/*
379 * Poll the track stick ...
380 */
381 if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8)))
382 return -1;
383 }
384
385 memcpy(psmouse->packet, buf, sizeof(buf));
386 return 0;
387}
388
1e0c5b12 389static int alps_hw_init(struct psmouse *psmouse, int *version)
1da177e4
LT		 390{
391 struct alps_data *priv = psmouse->private;
f3a5c73d 392
1e0c5b12
DT		 393 priv->i = alps_get_model(psmouse, version);
394 if (!priv->i)
1da177e4
LT		 395 return -1;
396
b30dc120 397 if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 1))
1da177e4
LT		 398 return -1;
399
963f626d 400 if (alps_tap_mode(psmouse, 1)) {
1e0c5b12 401 printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n");
1da177e4 402 return -1;
963f626d 403 }
1da177e4
LT		 404
405 if (alps_absolute_mode(psmouse)) {
1e0c5b12 406 printk(KERN_ERR "alps.c: Failed to enable absolute mode\n");
1da177e4
LT		 407 return -1;
408 }
409
b30dc120 410 if ((priv->i->flags & ALPS_PASS) && alps_passthrough_mode(psmouse, 0))
1da177e4
LT		 411 return -1;
412
1e0c5b12
DT		 413 /* ALPS needs stream mode, otherwise it won't report any data */
414 if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) {
415 printk(KERN_ERR "alps.c: Failed to enable stream mode\n");
416 return -1;
417 }
418
419 return 0;
420}
421
422static int alps_reconnect(struct psmouse *psmouse)
423{
424 psmouse_reset(psmouse);
425
426 if (alps_hw_init(psmouse, NULL))
427 return -1;
428
1da177e4
LT		 429 return 0;
430}
431
432static void alps_disconnect(struct psmouse *psmouse)
433{
434 struct alps_data *priv = psmouse->private;
2e5b636b 435
1da177e4 436 psmouse_reset(psmouse);
2e5b636b 437 input_unregister_device(priv->dev2);
1da177e4
LT		 438 kfree(priv);
439}
440
441int alps_init(struct psmouse *psmouse)
442{
443 struct alps_data *priv;
2e5b636b 444 struct input_dev *dev1 = psmouse->dev, *dev2;
1da177e4
LT		 445 int version;
446
f42649e8 447 priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL);
2e5b636b
DT		 448 dev2 = input_allocate_device();
449 if (!priv || !dev2)
1da177e4 450 goto init_fail;
2e5b636b
DT		 451
452 priv->dev2 = dev2;
1e0c5b12 453 psmouse->private = priv;
1da177e4 454
1e0c5b12 455 if (alps_hw_init(psmouse, &version))
1da177e4
LT		 456 goto init_fail;
457
7b19ada2
JS		 458 dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY);
459 dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH);
460 dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER);
461 dev1->keybit[BIT_WORD(BTN_LEFT)] |= BIT_MASK(BTN_LEFT) |
462 BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
1da177e4 463
7b19ada2 464 dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS);
2e5b636b
DT		 465 input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0);
466 input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0);
467 input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
1da177e4
LT		 468
469 if (priv->i->flags & ALPS_WHEEL) {
7b19ada2
JS		 470 dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL);
471 dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL);
1da177e4
LT		 472 }
473
c30b4c10 474 if (priv->i->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
7b19ada2
JS		 475 dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD);
476 dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK);
1da177e4
LT		 477 }
478
08ffce45 479 snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys);
2e5b636b
DT		 480 dev2->phys = priv->phys;
481 dev2->name = (priv->i->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse";
482 dev2->id.bustype = BUS_I8042;
483 dev2->id.vendor = 0x0002;
484 dev2->id.product = PSMOUSE_ALPS;
485 dev2->id.version = 0x0000;
1db3a345 486 dev2->dev.parent = &psmouse->ps2dev.serio->dev;
1da177e4 487
7b19ada2
JS		 488 dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
489 dev2->relbit[BIT_WORD(REL_X)] |= BIT_MASK(REL_X) | BIT_MASK(REL_Y);
490 dev2->keybit[BIT_WORD(BTN_LEFT)] |= BIT_MASK(BTN_LEFT) |
491 BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
1da177e4 492
f42649e8
DT		 493 if (input_register_device(priv->dev2))
494 goto init_fail;
1da177e4
LT		 495
496 psmouse->protocol_handler = alps_process_byte;
f0d5c6f4 497 psmouse->poll = alps_poll;
1da177e4
LT		 498 psmouse->disconnect = alps_disconnect;
499 psmouse->reconnect = alps_reconnect;
500 psmouse->pktsize = 6;
501
f0d5c6f4
DT		 502 /* We are having trouble resyncing ALPS touchpads so disable it for now */
503 psmouse->resync_time = 0;
504
1da177e4
LT		 505 return 0;
506
507init_fail:
f42649e8 508 psmouse_reset(psmouse);
2e5b636b 509 input_free_device(dev2);
1da177e4 510 kfree(priv);
1e0c5b12 511 psmouse->private = NULL;
1da177e4
LT		 512 return -1;
513}
514
515int alps_detect(struct psmouse *psmouse, int set_properties)
516{
517 int version;
e38de678 518 const struct alps_model_info *model;
1da177e4 519
f42649e8
DT		 520 model = alps_get_model(psmouse, &version);
521 if (!model)
1da177e4
LT		 522 return -1;
523
524 if (set_properties) {
525 psmouse->vendor = "ALPS";
968ac842
DT		 526 psmouse->name = model->flags & ALPS_DUALPOINT ?
527 "DualPoint TouchPad" : "GlidePoint";
1da177e4
LT		 528 psmouse->model = version;
529 }
530 return 0;
531}
532
Linux kernel - Deliverables
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