2 * ALPS touchpad PS/2 mouse driver
4 * Copyright (c) 2003 Neil Brown <neilb@cse.unsw.edu.au>
5 * Copyright (c) 2003-2005 Peter Osterlund <petero2@telia.com>
6 * Copyright (c) 2004 Dmitry Torokhov <dtor@mail.ru>
7 * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
8 * Copyright (c) 2009 Sebastian Kapfer <sebastian_kapfer@gmx.net>
10 * ALPS detection, tap switching and status querying info is taken from
11 * tpconfig utility (by C. Scott Ananian and Bruce Kall).
13 * This program is free software; you can redistribute it and/or modify it
14 * under the terms of the GNU General Public License version 2 as published by
15 * the Free Software Foundation.
18 #include <linux/input.h>
19 #include <linux/serio.h>
20 #include <linux/libps2.h>
27 #define dbg(format, arg...) printk(KERN_INFO "alps.c: " format "\n", ## arg)
29 #define dbg(format, arg...) do {} while (0)
32 #define ALPS_OLDPROTO 0x01 /* old style input */
33 #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */
34 #define ALPS_PASS 0x04 /* device has a pass-through port */
36 #define ALPS_WHEEL 0x08 /* hardware wheel present */
37 #define ALPS_FW_BK_1 0x10 /* front & back buttons present */
38 #define ALPS_FW_BK_2 0x20 /* front & back buttons present */
39 #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */
40 #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with
43 static const struct alps_model_info alps_model_data[] = {
44 { { 0x32, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */
45 { { 0x33, 0x02, 0x0a }, 0x88, 0xf8, ALPS_OLDPROTO }, /* UMAX-530T */
46 { { 0x53, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
47 { { 0x53, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
48 { { 0x60, 0x03, 0xc8 }, 0xf8, 0xf8, 0 }, /* HP ze1115 */
49 { { 0x63, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
50 { { 0x63, 0x02, 0x14 }, 0xf8, 0xf8, 0 },
51 { { 0x63, 0x02, 0x28 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Fujitsu Siemens S6010 */
52 { { 0x63, 0x02, 0x3c }, 0x8f, 0x8f, ALPS_WHEEL }, /* Toshiba Satellite S2400-103 */
53 { { 0x63, 0x02, 0x50 }, 0xef, 0xef, ALPS_FW_BK_1 }, /* NEC Versa L320 */
54 { { 0x63, 0x02, 0x64 }, 0xf8, 0xf8, 0 },
55 { { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */
56 { { 0x73, 0x00, 0x0a }, 0xf8, 0xf8, ALPS_DUALPOINT }, /* ThinkPad R61 8918-5QG */
57 { { 0x73, 0x02, 0x0a }, 0xf8, 0xf8, 0 },
58 { { 0x73, 0x02, 0x14 }, 0xf8, 0xf8, ALPS_FW_BK_2 }, /* Ahtec Laptop */
59 { { 0x20, 0x02, 0x0e }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */
60 { { 0x22, 0x02, 0x0a }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },
61 { { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */
62 /* Dell Latitude E5500, E6400, E6500, Precision M4400 */
63 { { 0x62, 0x02, 0x14 }, 0xcf, 0xcf,
64 ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },
65 { { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FOUR_BUTTONS }, /* Dell Vostro 1400 */
69 * XXX - this entry is suspicious. First byte has zero lower nibble,
70 * which is what a normal mouse would report. Also, the value 0x0e
71 * isn't valid per PS/2 spec.
77 * byte 0: 0 0 YSGN XSGN 1 M R L
78 * byte 1: X7 X6 X5 X4 X3 X2 X1 X0
79 * byte 2: Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
81 * Note that the device never signals overflow condition.
83 * ALPS absolute Mode - new format
85 * byte 0: 1 ? ? ? 1 ? ? ?
86 * byte 1: 0 x6 x5 x4 x3 x2 x1 x0
87 * byte 2: 0 x10 x9 x8 x7 ? fin ges
88 * byte 3: 0 y9 y8 y7 1 M R L
89 * byte 4: 0 y6 y5 y4 y3 y2 y1 y0
90 * byte 5: 0 z6 z5 z4 z3 z2 z1 z0
92 * Dualpoint device -- interleaved packet format
94 * byte 0: 1 1 0 0 1 1 1 1
95 * byte 1: 0 x6 x5 x4 x3 x2 x1 x0
96 * byte 2: 0 x10 x9 x8 x7 0 fin ges
97 * byte 3: 0 0 YSGN XSGN 1 1 1 1
98 * byte 4: X7 X6 X5 X4 X3 X2 X1 X0
99 * byte 5: Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
100 * byte 6: 0 y9 y8 y7 1 m r l
101 * byte 7: 0 y6 y5 y4 y3 y2 y1 y0
102 * byte 8: 0 z6 z5 z4 z3 z2 z1 z0
104 * CAPITALS = stick, miniscules = touchpad
106 * ?'s can have different meanings on different models,
107 * such as wheel rotation, extra buttons, stick buttons
108 * on a dualpoint, etc.
111 static bool alps_is_valid_first_byte(const struct alps_model_info *model,
114 return (data & model->mask0) == model->byte0;
117 static void alps_report_buttons(struct psmouse *psmouse,
118 struct input_dev *dev1, struct input_dev *dev2,
119 int left, int right, int middle)
121 struct alps_data *priv = psmouse->private;
122 const struct alps_model_info *model = priv->i;
124 if (model->flags & ALPS_PS2_INTERLEAVED) {
125 struct input_dev *dev;
128 * If shared button has already been reported on the
129 * other device (dev2) then this event should be also
130 * sent through that device.
132 dev = test_bit(BTN_LEFT, dev2->key) ? dev2 : dev1;
133 input_report_key(dev, BTN_LEFT, left);
135 dev = test_bit(BTN_RIGHT, dev2->key) ? dev2 : dev1;
136 input_report_key(dev, BTN_RIGHT, right);
138 dev = test_bit(BTN_MIDDLE, dev2->key) ? dev2 : dev1;
139 input_report_key(dev, BTN_MIDDLE, middle);
142 * Sync the _other_ device now, we'll do the first
143 * device later once we report the rest of the events.
148 * For devices with non-interleaved packets we know what
149 * device buttons belong to so we can simply report them.
151 input_report_key(dev1, BTN_LEFT, left);
152 input_report_key(dev1, BTN_RIGHT, right);
153 input_report_key(dev1, BTN_MIDDLE, middle);
157 static void alps_process_packet(struct psmouse *psmouse)
159 struct alps_data *priv = psmouse->private;
160 const struct alps_model_info *model = priv->i;
161 unsigned char *packet = psmouse->packet;
162 struct input_dev *dev = psmouse->dev;
163 struct input_dev *dev2 = priv->dev2;
164 int x, y, z, ges, fin, left, right, middle;
165 int back = 0, forward = 0;
167 if (model->flags & ALPS_OLDPROTO) {
168 left = packet[2] & 0x10;
169 right = packet[2] & 0x08;
171 x = packet[1] | ((packet[0] & 0x07) << 7);
172 y = packet[4] | ((packet[3] & 0x07) << 7);
175 left = packet[3] & 1;
176 right = packet[3] & 2;
177 middle = packet[3] & 4;
178 x = packet[1] | ((packet[2] & 0x78) << (7 - 3));
179 y = packet[4] | ((packet[3] & 0x70) << (7 - 4));
183 if (model->flags & ALPS_FW_BK_1) {
184 back = packet[0] & 0x10;
185 forward = packet[2] & 4;
188 if (model->flags & ALPS_FW_BK_2) {
189 back = packet[3] & 4;
190 forward = packet[2] & 4;
191 if ((middle = forward && back))
198 if ((model->flags & ALPS_DUALPOINT) && z == 127) {
199 input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x));
200 input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y));
202 alps_report_buttons(psmouse, dev2, dev, left, right, middle);
208 alps_report_buttons(psmouse, dev, dev2, left, right, middle);
210 /* Convert hardware tap to a reasonable Z value */
215 * A "tap and drag" operation is reported by the hardware as a transition
216 * from (!fin && ges) to (fin && ges). This should be translated to the
217 * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually.
219 if (ges && fin && !priv->prev_fin) {
220 input_report_abs(dev, ABS_X, x);
221 input_report_abs(dev, ABS_Y, y);
222 input_report_abs(dev, ABS_PRESSURE, 0);
223 input_report_key(dev, BTN_TOOL_FINGER, 0);
226 priv->prev_fin = fin;
229 input_report_key(dev, BTN_TOUCH, 1);
231 input_report_key(dev, BTN_TOUCH, 0);
234 input_report_abs(dev, ABS_X, x);
235 input_report_abs(dev, ABS_Y, y);
238 input_report_abs(dev, ABS_PRESSURE, z);
239 input_report_key(dev, BTN_TOOL_FINGER, z > 0);
241 if (model->flags & ALPS_WHEEL)
242 input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07));
244 if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
245 input_report_key(dev, BTN_FORWARD, forward);
246 input_report_key(dev, BTN_BACK, back);
249 if (model->flags & ALPS_FOUR_BUTTONS) {
250 input_report_key(dev, BTN_0, packet[2] & 4);
251 input_report_key(dev, BTN_1, packet[0] & 0x10);
252 input_report_key(dev, BTN_2, packet[3] & 4);
253 input_report_key(dev, BTN_3, packet[0] & 0x20);
259 static void alps_report_bare_ps2_packet(struct psmouse *psmouse,
260 unsigned char packet[],
263 struct alps_data *priv = psmouse->private;
264 struct input_dev *dev2 = priv->dev2;
267 alps_report_buttons(psmouse, dev2, psmouse->dev,
268 packet[0] & 1, packet[0] & 2, packet[0] & 4);
270 input_report_rel(dev2, REL_X,
271 packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0);
272 input_report_rel(dev2, REL_Y,
273 packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0);
278 static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse)
280 struct alps_data *priv = psmouse->private;
282 if (psmouse->pktcnt < 6)
283 return PSMOUSE_GOOD_DATA;
285 if (psmouse->pktcnt == 6) {
287 * Start a timer to flush the packet if it ends up last
288 * 6-byte packet in the stream. Timer needs to fire
289 * psmouse core times out itself. 20 ms should be enough
290 * to decide if we are getting more data or not.
292 mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20));
293 return PSMOUSE_GOOD_DATA;
296 del_timer(&priv->timer);
298 if (psmouse->packet[6] & 0x80) {
301 * Highest bit is set - that means we either had
302 * complete ALPS packet and this is start of the
303 * next packet or we got garbage.
306 if (((psmouse->packet[3] |
308 psmouse->packet[5]) & 0x80) ||
309 (!alps_is_valid_first_byte(priv->i, psmouse->packet[6]))) {
310 dbg("refusing packet %x %x %x %x "
311 "(suspected interleaved ps/2)\n",
312 psmouse->packet[3], psmouse->packet[4],
313 psmouse->packet[5], psmouse->packet[6]);
314 return PSMOUSE_BAD_DATA;
317 alps_process_packet(psmouse);
319 /* Continue with the next packet */
320 psmouse->packet[0] = psmouse->packet[6];
326 * High bit is 0 - that means that we indeed got a PS/2
327 * packet in the middle of ALPS packet.
329 * There is also possibility that we got 6-byte ALPS
330 * packet followed by 3-byte packet from trackpoint. We
331 * can not distinguish between these 2 scenarios but
332 * becase the latter is unlikely to happen in course of
333 * normal operation (user would need to press all
334 * buttons on the pad and start moving trackpoint
335 * without touching the pad surface) we assume former.
336 * Even if we are wrong the wost thing that would happen
337 * the cursor would jump but we should not get protocol
341 alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3],
345 * Continue with the standard ALPS protocol handling,
346 * but make sure we won't process it as an interleaved
347 * packet again, which may happen if all buttons are
348 * pressed. To avoid this let's reset the 4th bit which
351 psmouse->packet[3] = psmouse->packet[6] & 0xf7;
355 return PSMOUSE_GOOD_DATA;
358 static void alps_flush_packet(unsigned long data)
360 struct psmouse *psmouse = (struct psmouse *)data;
362 serio_pause_rx(psmouse->ps2dev.serio);
364 if (psmouse->pktcnt == 6) {
367 * We did not any more data in reasonable amount of time.
368 * Validate the last 3 bytes and process as a standard
371 if ((psmouse->packet[3] |
373 psmouse->packet[5]) & 0x80) {
374 dbg("refusing packet %x %x %x "
375 "(suspected interleaved ps/2)\n",
376 psmouse->packet[3], psmouse->packet[4],
379 alps_process_packet(psmouse);
384 serio_continue_rx(psmouse->ps2dev.serio);
387 static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
389 struct alps_data *priv = psmouse->private;
390 const struct alps_model_info *model = priv->i;
392 if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */
393 if (psmouse->pktcnt == 3) {
394 alps_report_bare_ps2_packet(psmouse, psmouse->packet,
396 return PSMOUSE_FULL_PACKET;
398 return PSMOUSE_GOOD_DATA;
401 /* Check for PS/2 packet stuffed in the middle of ALPS packet. */
403 if ((model->flags & ALPS_PS2_INTERLEAVED) &&
404 psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) {
405 return alps_handle_interleaved_ps2(psmouse);
408 if (!alps_is_valid_first_byte(model, psmouse->packet[0])) {
409 dbg("refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
410 psmouse->packet[0], model->mask0, model->byte0);
411 return PSMOUSE_BAD_DATA;
414 /* Bytes 2 - 6 should have 0 in the highest bit */
415 if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 &&
416 (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) {
417 dbg("refusing packet[%i] = %x\n",
418 psmouse->pktcnt - 1, psmouse->packet[psmouse->pktcnt - 1]);
419 return PSMOUSE_BAD_DATA;
422 if (psmouse->pktcnt == 6) {
423 alps_process_packet(psmouse);
424 return PSMOUSE_FULL_PACKET;
427 return PSMOUSE_GOOD_DATA;
430 static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
432 struct ps2dev *ps2dev = &psmouse->ps2dev;
433 static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
434 unsigned char param[4];
438 * First try "E6 report".
439 * ALPS should return 0,0,10 or 0,0,100
442 if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
443 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
444 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
445 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11))
448 param[0] = param[1] = param[2] = 0xff;
449 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
452 dbg("E6 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
454 if (param[0] != 0 || param[1] != 0 || (param[2] != 10 && param[2] != 100))
458 * Now try "E7 report". Allowed responses are in
459 * alps_model_data[].signature
462 if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
463 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
464 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
465 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21))
468 param[0] = param[1] = param[2] = 0xff;
469 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
472 dbg("E7 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
475 for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++)
477 *version = (param[0] << 8) | (param[1] << 4) | i;
480 for (i = 0; i < ARRAY_SIZE(alps_model_data); i++)
481 if (!memcmp(param, alps_model_data[i].signature,
482 sizeof(alps_model_data[i].signature)))
483 return alps_model_data + i;
489 * For DualPoint devices select the device that should respond to
490 * subsequent commands. It looks like glidepad is behind stickpointer,
491 * I'd thought it would be other way around...
493 static int alps_passthrough_mode(struct psmouse *psmouse, bool enable)
495 struct ps2dev *ps2dev = &psmouse->ps2dev;
496 int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11;
498 if (ps2_command(ps2dev, NULL, cmd) ||
499 ps2_command(ps2dev, NULL, cmd) ||
500 ps2_command(ps2dev, NULL, cmd) ||
501 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE))
504 /* we may get 3 more bytes, just ignore them */
505 ps2_drain(ps2dev, 3, 100);
510 static int alps_absolute_mode(struct psmouse *psmouse)
512 struct ps2dev *ps2dev = &psmouse->ps2dev;
514 /* Try ALPS magic knock - 4 disable before enable */
515 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
516 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
517 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
518 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
519 ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE))
523 * Switch mouse to poll (remote) mode so motion data will not
526 return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL);
529 static int alps_get_status(struct psmouse *psmouse, char *param)
531 struct ps2dev *ps2dev = &psmouse->ps2dev;
533 /* Get status: 0xF5 0xF5 0xF5 0xE9 */
534 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
535 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
536 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
537 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
540 dbg("Status: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
546 * Turn touchpad tapping on or off. The sequences are:
547 * 0xE9 0xF5 0xF5 0xF3 0x0A to enable,
548 * 0xE9 0xF5 0xF5 0xE8 0x00 to disable.
549 * My guess that 0xE9 (GetInfo) is here as a sync point.
550 * For models that also have stickpointer (DualPoints) its tapping
551 * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but
552 * we don't fiddle with it.
554 static int alps_tap_mode(struct psmouse *psmouse, int enable)
556 struct ps2dev *ps2dev = &psmouse->ps2dev;
557 int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES;
558 unsigned char tap_arg = enable ? 0x0A : 0x00;
559 unsigned char param[4];
561 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) ||
562 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
563 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
564 ps2_command(ps2dev, &tap_arg, cmd))
567 if (alps_get_status(psmouse, param))
574 * alps_poll() - poll the touchpad for current motion packet.
577 static int alps_poll(struct psmouse *psmouse)
579 struct alps_data *priv = psmouse->private;
580 unsigned char buf[6];
583 if (priv->i->flags & ALPS_PASS)
584 alps_passthrough_mode(psmouse, true);
586 poll_failed = ps2_command(&psmouse->ps2dev, buf,
587 PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0;
589 if (priv->i->flags & ALPS_PASS)
590 alps_passthrough_mode(psmouse, false);
592 if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->byte0)
595 if ((psmouse->badbyte & 0xc8) == 0x08) {
597 * Poll the track stick ...
599 if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8)))
603 memcpy(psmouse->packet, buf, sizeof(buf));
607 static int alps_hw_init(struct psmouse *psmouse)
609 struct alps_data *priv = psmouse->private;
610 const struct alps_model_info *model = priv->i;
612 if ((model->flags & ALPS_PASS) &&
613 alps_passthrough_mode(psmouse, true)) {
617 if (alps_tap_mode(psmouse, true)) {
618 printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n");
622 if (alps_absolute_mode(psmouse)) {
623 printk(KERN_ERR "alps.c: Failed to enable absolute mode\n");
627 if ((model->flags & ALPS_PASS) &&
628 alps_passthrough_mode(psmouse, false)) {
632 /* ALPS needs stream mode, otherwise it won't report any data */
633 if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) {
634 printk(KERN_ERR "alps.c: Failed to enable stream mode\n");
641 static int alps_reconnect(struct psmouse *psmouse)
643 const struct alps_model_info *model;
645 psmouse_reset(psmouse);
647 model = alps_get_model(psmouse, NULL);
651 return alps_hw_init(psmouse);
654 static void alps_disconnect(struct psmouse *psmouse)
656 struct alps_data *priv = psmouse->private;
658 psmouse_reset(psmouse);
659 del_timer_sync(&priv->timer);
660 input_unregister_device(priv->dev2);
664 int alps_init(struct psmouse *psmouse)
666 struct alps_data *priv;
667 const struct alps_model_info *model;
668 struct input_dev *dev1 = psmouse->dev, *dev2;
671 priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL);
672 dev2 = input_allocate_device();
677 setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse);
679 psmouse->private = priv;
681 model = alps_get_model(psmouse, &version);
687 if (alps_hw_init(psmouse))
691 * Undo part of setup done for us by psmouse core since touchpad
692 * is not a relative device.
694 __clear_bit(EV_REL, dev1->evbit);
695 __clear_bit(REL_X, dev1->relbit);
696 __clear_bit(REL_Y, dev1->relbit);
699 * Now set up our capabilities.
701 dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY);
702 dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH);
703 dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER);
704 dev1->keybit[BIT_WORD(BTN_LEFT)] |=
705 BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
707 dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS);
708 input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0);
709 input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0);
710 input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
712 if (model->flags & ALPS_WHEEL) {
713 dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL);
714 dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL);
717 if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
718 dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD);
719 dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK);
722 if (model->flags & ALPS_FOUR_BUTTONS) {
723 dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0);
724 dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1);
725 dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2);
726 dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3);
728 dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE);
731 snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys);
732 dev2->phys = priv->phys;
733 dev2->name = (model->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse";
734 dev2->id.bustype = BUS_I8042;
735 dev2->id.vendor = 0x0002;
736 dev2->id.product = PSMOUSE_ALPS;
737 dev2->id.version = 0x0000;
738 dev2->dev.parent = &psmouse->ps2dev.serio->dev;
740 dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
741 dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
742 dev2->keybit[BIT_WORD(BTN_LEFT)] =
743 BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
745 if (input_register_device(priv->dev2))
748 psmouse->protocol_handler = alps_process_byte;
749 psmouse->poll = alps_poll;
750 psmouse->disconnect = alps_disconnect;
751 psmouse->reconnect = alps_reconnect;
752 psmouse->pktsize = 6;
754 /* We are having trouble resyncing ALPS touchpads so disable it for now */
755 psmouse->resync_time = 0;
760 psmouse_reset(psmouse);
761 input_free_device(dev2);
763 psmouse->private = NULL;
767 int alps_detect(struct psmouse *psmouse, bool set_properties)
770 const struct alps_model_info *model;
772 model = alps_get_model(psmouse, &version);
776 if (set_properties) {
777 psmouse->vendor = "ALPS";
778 psmouse->name = model->flags & ALPS_DUALPOINT ?
779 "DualPoint TouchPad" : "GlidePoint";
780 psmouse->model = version;