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 */
66 { { 0x52, 0x01, 0x14 }, 0xff, 0xff,
67 ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED }, /* Toshiba Tecra A11-11L */
71 * XXX - this entry is suspicious. First byte has zero lower nibble,
72 * which is what a normal mouse would report. Also, the value 0x0e
73 * isn't valid per PS/2 spec.
79 * byte 0: 0 0 YSGN XSGN 1 M R L
80 * byte 1: X7 X6 X5 X4 X3 X2 X1 X0
81 * byte 2: Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
83 * Note that the device never signals overflow condition.
85 * ALPS absolute Mode - new format
87 * byte 0: 1 ? ? ? 1 ? ? ?
88 * byte 1: 0 x6 x5 x4 x3 x2 x1 x0
89 * byte 2: 0 x10 x9 x8 x7 ? fin ges
90 * byte 3: 0 y9 y8 y7 1 M R L
91 * byte 4: 0 y6 y5 y4 y3 y2 y1 y0
92 * byte 5: 0 z6 z5 z4 z3 z2 z1 z0
94 * Dualpoint device -- interleaved packet format
96 * byte 0: 1 1 0 0 1 1 1 1
97 * byte 1: 0 x6 x5 x4 x3 x2 x1 x0
98 * byte 2: 0 x10 x9 x8 x7 0 fin ges
99 * byte 3: 0 0 YSGN XSGN 1 1 1 1
100 * byte 4: X7 X6 X5 X4 X3 X2 X1 X0
101 * byte 5: Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
102 * byte 6: 0 y9 y8 y7 1 m r l
103 * byte 7: 0 y6 y5 y4 y3 y2 y1 y0
104 * byte 8: 0 z6 z5 z4 z3 z2 z1 z0
106 * CAPITALS = stick, miniscules = touchpad
108 * ?'s can have different meanings on different models,
109 * such as wheel rotation, extra buttons, stick buttons
110 * on a dualpoint, etc.
113 static bool alps_is_valid_first_byte(const struct alps_model_info *model,
116 return (data & model->mask0) == model->byte0;
119 static void alps_report_buttons(struct psmouse *psmouse,
120 struct input_dev *dev1, struct input_dev *dev2,
121 int left, int right, int middle)
123 struct input_dev *dev;
126 * If shared button has already been reported on the
127 * other device (dev2) then this event should be also
128 * sent through that device.
130 dev = test_bit(BTN_LEFT, dev2->key) ? dev2 : dev1;
131 input_report_key(dev, BTN_LEFT, left);
133 dev = test_bit(BTN_RIGHT, dev2->key) ? dev2 : dev1;
134 input_report_key(dev, BTN_RIGHT, right);
136 dev = test_bit(BTN_MIDDLE, dev2->key) ? dev2 : dev1;
137 input_report_key(dev, BTN_MIDDLE, middle);
140 * Sync the _other_ device now, we'll do the first
141 * device later once we report the rest of the events.
146 static void alps_process_packet(struct psmouse *psmouse)
148 struct alps_data *priv = psmouse->private;
149 const struct alps_model_info *model = priv->i;
150 unsigned char *packet = psmouse->packet;
151 struct input_dev *dev = psmouse->dev;
152 struct input_dev *dev2 = priv->dev2;
153 int x, y, z, ges, fin, left, right, middle;
154 int back = 0, forward = 0;
156 if (model->flags & ALPS_OLDPROTO) {
157 left = packet[2] & 0x10;
158 right = packet[2] & 0x08;
160 x = packet[1] | ((packet[0] & 0x07) << 7);
161 y = packet[4] | ((packet[3] & 0x07) << 7);
164 left = packet[3] & 1;
165 right = packet[3] & 2;
166 middle = packet[3] & 4;
167 x = packet[1] | ((packet[2] & 0x78) << (7 - 3));
168 y = packet[4] | ((packet[3] & 0x70) << (7 - 4));
172 if (model->flags & ALPS_FW_BK_1) {
173 back = packet[0] & 0x10;
174 forward = packet[2] & 4;
177 if (model->flags & ALPS_FW_BK_2) {
178 back = packet[3] & 4;
179 forward = packet[2] & 4;
180 if ((middle = forward && back))
187 if ((model->flags & ALPS_DUALPOINT) && z == 127) {
188 input_report_rel(dev2, REL_X, (x > 383 ? (x - 768) : x));
189 input_report_rel(dev2, REL_Y, -(y > 255 ? (y - 512) : y));
191 alps_report_buttons(psmouse, dev2, dev, left, right, middle);
197 alps_report_buttons(psmouse, dev, dev2, left, right, middle);
199 /* Convert hardware tap to a reasonable Z value */
204 * A "tap and drag" operation is reported by the hardware as a transition
205 * from (!fin && ges) to (fin && ges). This should be translated to the
206 * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually.
208 if (ges && fin && !priv->prev_fin) {
209 input_report_abs(dev, ABS_X, x);
210 input_report_abs(dev, ABS_Y, y);
211 input_report_abs(dev, ABS_PRESSURE, 0);
212 input_report_key(dev, BTN_TOOL_FINGER, 0);
215 priv->prev_fin = fin;
218 input_report_key(dev, BTN_TOUCH, 1);
220 input_report_key(dev, BTN_TOUCH, 0);
223 input_report_abs(dev, ABS_X, x);
224 input_report_abs(dev, ABS_Y, y);
227 input_report_abs(dev, ABS_PRESSURE, z);
228 input_report_key(dev, BTN_TOOL_FINGER, z > 0);
230 if (model->flags & ALPS_WHEEL)
231 input_report_rel(dev, REL_WHEEL, ((packet[2] << 1) & 0x08) - ((packet[0] >> 4) & 0x07));
233 if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
234 input_report_key(dev, BTN_FORWARD, forward);
235 input_report_key(dev, BTN_BACK, back);
238 if (model->flags & ALPS_FOUR_BUTTONS) {
239 input_report_key(dev, BTN_0, packet[2] & 4);
240 input_report_key(dev, BTN_1, packet[0] & 0x10);
241 input_report_key(dev, BTN_2, packet[3] & 4);
242 input_report_key(dev, BTN_3, packet[0] & 0x20);
248 static void alps_report_bare_ps2_packet(struct psmouse *psmouse,
249 unsigned char packet[],
252 struct alps_data *priv = psmouse->private;
253 struct input_dev *dev2 = priv->dev2;
256 alps_report_buttons(psmouse, dev2, psmouse->dev,
257 packet[0] & 1, packet[0] & 2, packet[0] & 4);
259 input_report_rel(dev2, REL_X,
260 packet[1] ? packet[1] - ((packet[0] << 4) & 0x100) : 0);
261 input_report_rel(dev2, REL_Y,
262 packet[2] ? ((packet[0] << 3) & 0x100) - packet[2] : 0);
267 static psmouse_ret_t alps_handle_interleaved_ps2(struct psmouse *psmouse)
269 struct alps_data *priv = psmouse->private;
271 if (psmouse->pktcnt < 6)
272 return PSMOUSE_GOOD_DATA;
274 if (psmouse->pktcnt == 6) {
276 * Start a timer to flush the packet if it ends up last
277 * 6-byte packet in the stream. Timer needs to fire
278 * psmouse core times out itself. 20 ms should be enough
279 * to decide if we are getting more data or not.
281 mod_timer(&priv->timer, jiffies + msecs_to_jiffies(20));
282 return PSMOUSE_GOOD_DATA;
285 del_timer(&priv->timer);
287 if (psmouse->packet[6] & 0x80) {
290 * Highest bit is set - that means we either had
291 * complete ALPS packet and this is start of the
292 * next packet or we got garbage.
295 if (((psmouse->packet[3] |
297 psmouse->packet[5]) & 0x80) ||
298 (!alps_is_valid_first_byte(priv->i, psmouse->packet[6]))) {
299 dbg("refusing packet %x %x %x %x "
300 "(suspected interleaved ps/2)\n",
301 psmouse->packet[3], psmouse->packet[4],
302 psmouse->packet[5], psmouse->packet[6]);
303 return PSMOUSE_BAD_DATA;
306 alps_process_packet(psmouse);
308 /* Continue with the next packet */
309 psmouse->packet[0] = psmouse->packet[6];
315 * High bit is 0 - that means that we indeed got a PS/2
316 * packet in the middle of ALPS packet.
318 * There is also possibility that we got 6-byte ALPS
319 * packet followed by 3-byte packet from trackpoint. We
320 * can not distinguish between these 2 scenarios but
321 * becase the latter is unlikely to happen in course of
322 * normal operation (user would need to press all
323 * buttons on the pad and start moving trackpoint
324 * without touching the pad surface) we assume former.
325 * Even if we are wrong the wost thing that would happen
326 * the cursor would jump but we should not get protocol
330 alps_report_bare_ps2_packet(psmouse, &psmouse->packet[3],
334 * Continue with the standard ALPS protocol handling,
335 * but make sure we won't process it as an interleaved
336 * packet again, which may happen if all buttons are
337 * pressed. To avoid this let's reset the 4th bit which
340 psmouse->packet[3] = psmouse->packet[6] & 0xf7;
344 return PSMOUSE_GOOD_DATA;
347 static void alps_flush_packet(unsigned long data)
349 struct psmouse *psmouse = (struct psmouse *)data;
351 serio_pause_rx(psmouse->ps2dev.serio);
353 if (psmouse->pktcnt == 6) {
356 * We did not any more data in reasonable amount of time.
357 * Validate the last 3 bytes and process as a standard
360 if ((psmouse->packet[3] |
362 psmouse->packet[5]) & 0x80) {
363 dbg("refusing packet %x %x %x "
364 "(suspected interleaved ps/2)\n",
365 psmouse->packet[3], psmouse->packet[4],
368 alps_process_packet(psmouse);
373 serio_continue_rx(psmouse->ps2dev.serio);
376 static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
378 struct alps_data *priv = psmouse->private;
379 const struct alps_model_info *model = priv->i;
381 if ((psmouse->packet[0] & 0xc8) == 0x08) { /* PS/2 packet */
382 if (psmouse->pktcnt == 3) {
383 alps_report_bare_ps2_packet(psmouse, psmouse->packet,
385 return PSMOUSE_FULL_PACKET;
387 return PSMOUSE_GOOD_DATA;
390 /* Check for PS/2 packet stuffed in the middle of ALPS packet. */
392 if ((model->flags & ALPS_PS2_INTERLEAVED) &&
393 psmouse->pktcnt >= 4 && (psmouse->packet[3] & 0x0f) == 0x0f) {
394 return alps_handle_interleaved_ps2(psmouse);
397 if (!alps_is_valid_first_byte(model, psmouse->packet[0])) {
398 dbg("refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
399 psmouse->packet[0], model->mask0, model->byte0);
400 return PSMOUSE_BAD_DATA;
403 /* Bytes 2 - 6 should have 0 in the highest bit */
404 if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 &&
405 (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) {
406 dbg("refusing packet[%i] = %x\n",
407 psmouse->pktcnt - 1, psmouse->packet[psmouse->pktcnt - 1]);
408 return PSMOUSE_BAD_DATA;
411 if (psmouse->pktcnt == 6) {
412 alps_process_packet(psmouse);
413 return PSMOUSE_FULL_PACKET;
416 return PSMOUSE_GOOD_DATA;
419 static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
421 struct ps2dev *ps2dev = &psmouse->ps2dev;
422 static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
423 unsigned char param[4];
427 * First try "E6 report".
428 * ALPS should return 0,0,10 or 0,0,100
431 if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
432 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
433 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
434 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11))
437 param[0] = param[1] = param[2] = 0xff;
438 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
441 dbg("E6 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
443 if (param[0] != 0 || param[1] != 0 || (param[2] != 10 && param[2] != 100))
447 * Now try "E7 report". Allowed responses are in
448 * alps_model_data[].signature
451 if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRES) ||
452 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
453 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
454 ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21))
457 param[0] = param[1] = param[2] = 0xff;
458 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
461 dbg("E7 report: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
464 for (i = 0; i < ARRAY_SIZE(rates) && param[2] != rates[i]; i++)
466 *version = (param[0] << 8) | (param[1] << 4) | i;
469 for (i = 0; i < ARRAY_SIZE(alps_model_data); i++)
470 if (!memcmp(param, alps_model_data[i].signature,
471 sizeof(alps_model_data[i].signature)))
472 return alps_model_data + i;
478 * For DualPoint devices select the device that should respond to
479 * subsequent commands. It looks like glidepad is behind stickpointer,
480 * I'd thought it would be other way around...
482 static int alps_passthrough_mode(struct psmouse *psmouse, bool enable)
484 struct ps2dev *ps2dev = &psmouse->ps2dev;
485 int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11;
487 if (ps2_command(ps2dev, NULL, cmd) ||
488 ps2_command(ps2dev, NULL, cmd) ||
489 ps2_command(ps2dev, NULL, cmd) ||
490 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE))
493 /* we may get 3 more bytes, just ignore them */
494 ps2_drain(ps2dev, 3, 100);
499 static int alps_absolute_mode(struct psmouse *psmouse)
501 struct ps2dev *ps2dev = &psmouse->ps2dev;
503 /* Try ALPS magic knock - 4 disable before enable */
504 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
505 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
506 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
507 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
508 ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE))
512 * Switch mouse to poll (remote) mode so motion data will not
515 return ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETPOLL);
518 static int alps_get_status(struct psmouse *psmouse, char *param)
520 struct ps2dev *ps2dev = &psmouse->ps2dev;
522 /* Get status: 0xF5 0xF5 0xF5 0xE9 */
523 if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
524 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
525 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
526 ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
529 dbg("Status: %2.2x %2.2x %2.2x", param[0], param[1], param[2]);
535 * Turn touchpad tapping on or off. The sequences are:
536 * 0xE9 0xF5 0xF5 0xF3 0x0A to enable,
537 * 0xE9 0xF5 0xF5 0xE8 0x00 to disable.
538 * My guess that 0xE9 (GetInfo) is here as a sync point.
539 * For models that also have stickpointer (DualPoints) its tapping
540 * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but
541 * we don't fiddle with it.
543 static int alps_tap_mode(struct psmouse *psmouse, int enable)
545 struct ps2dev *ps2dev = &psmouse->ps2dev;
546 int cmd = enable ? PSMOUSE_CMD_SETRATE : PSMOUSE_CMD_SETRES;
547 unsigned char tap_arg = enable ? 0x0A : 0x00;
548 unsigned char param[4];
550 if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO) ||
551 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
552 ps2_command(ps2dev, NULL, PSMOUSE_CMD_DISABLE) ||
553 ps2_command(ps2dev, &tap_arg, cmd))
556 if (alps_get_status(psmouse, param))
563 * alps_poll() - poll the touchpad for current motion packet.
566 static int alps_poll(struct psmouse *psmouse)
568 struct alps_data *priv = psmouse->private;
569 unsigned char buf[6];
572 if (priv->i->flags & ALPS_PASS)
573 alps_passthrough_mode(psmouse, true);
575 poll_failed = ps2_command(&psmouse->ps2dev, buf,
576 PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0;
578 if (priv->i->flags & ALPS_PASS)
579 alps_passthrough_mode(psmouse, false);
581 if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->byte0)
584 if ((psmouse->badbyte & 0xc8) == 0x08) {
586 * Poll the track stick ...
588 if (ps2_command(&psmouse->ps2dev, buf, PSMOUSE_CMD_POLL | (3 << 8)))
592 memcpy(psmouse->packet, buf, sizeof(buf));
596 static int alps_hw_init(struct psmouse *psmouse)
598 struct alps_data *priv = psmouse->private;
599 const struct alps_model_info *model = priv->i;
601 if ((model->flags & ALPS_PASS) &&
602 alps_passthrough_mode(psmouse, true)) {
606 if (alps_tap_mode(psmouse, true)) {
607 printk(KERN_WARNING "alps.c: Failed to enable hardware tapping\n");
611 if (alps_absolute_mode(psmouse)) {
612 printk(KERN_ERR "alps.c: Failed to enable absolute mode\n");
616 if ((model->flags & ALPS_PASS) &&
617 alps_passthrough_mode(psmouse, false)) {
621 /* ALPS needs stream mode, otherwise it won't report any data */
622 if (ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_SETSTREAM)) {
623 printk(KERN_ERR "alps.c: Failed to enable stream mode\n");
630 static int alps_reconnect(struct psmouse *psmouse)
632 const struct alps_model_info *model;
634 psmouse_reset(psmouse);
636 model = alps_get_model(psmouse, NULL);
640 return alps_hw_init(psmouse);
643 static void alps_disconnect(struct psmouse *psmouse)
645 struct alps_data *priv = psmouse->private;
647 psmouse_reset(psmouse);
648 del_timer_sync(&priv->timer);
649 input_unregister_device(priv->dev2);
653 int alps_init(struct psmouse *psmouse)
655 struct alps_data *priv;
656 const struct alps_model_info *model;
657 struct input_dev *dev1 = psmouse->dev, *dev2;
660 priv = kzalloc(sizeof(struct alps_data), GFP_KERNEL);
661 dev2 = input_allocate_device();
666 setup_timer(&priv->timer, alps_flush_packet, (unsigned long)psmouse);
668 psmouse->private = priv;
670 model = alps_get_model(psmouse, &version);
676 if (alps_hw_init(psmouse))
680 * Undo part of setup done for us by psmouse core since touchpad
681 * is not a relative device.
683 __clear_bit(EV_REL, dev1->evbit);
684 __clear_bit(REL_X, dev1->relbit);
685 __clear_bit(REL_Y, dev1->relbit);
688 * Now set up our capabilities.
690 dev1->evbit[BIT_WORD(EV_KEY)] |= BIT_MASK(EV_KEY);
691 dev1->keybit[BIT_WORD(BTN_TOUCH)] |= BIT_MASK(BTN_TOUCH);
692 dev1->keybit[BIT_WORD(BTN_TOOL_FINGER)] |= BIT_MASK(BTN_TOOL_FINGER);
693 dev1->keybit[BIT_WORD(BTN_LEFT)] |=
694 BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
696 dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS);
697 input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0);
698 input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0);
699 input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
701 if (model->flags & ALPS_WHEEL) {
702 dev1->evbit[BIT_WORD(EV_REL)] |= BIT_MASK(EV_REL);
703 dev1->relbit[BIT_WORD(REL_WHEEL)] |= BIT_MASK(REL_WHEEL);
706 if (model->flags & (ALPS_FW_BK_1 | ALPS_FW_BK_2)) {
707 dev1->keybit[BIT_WORD(BTN_FORWARD)] |= BIT_MASK(BTN_FORWARD);
708 dev1->keybit[BIT_WORD(BTN_BACK)] |= BIT_MASK(BTN_BACK);
711 if (model->flags & ALPS_FOUR_BUTTONS) {
712 dev1->keybit[BIT_WORD(BTN_0)] |= BIT_MASK(BTN_0);
713 dev1->keybit[BIT_WORD(BTN_1)] |= BIT_MASK(BTN_1);
714 dev1->keybit[BIT_WORD(BTN_2)] |= BIT_MASK(BTN_2);
715 dev1->keybit[BIT_WORD(BTN_3)] |= BIT_MASK(BTN_3);
717 dev1->keybit[BIT_WORD(BTN_MIDDLE)] |= BIT_MASK(BTN_MIDDLE);
720 snprintf(priv->phys, sizeof(priv->phys), "%s/input1", psmouse->ps2dev.serio->phys);
721 dev2->phys = priv->phys;
722 dev2->name = (model->flags & ALPS_DUALPOINT) ? "DualPoint Stick" : "PS/2 Mouse";
723 dev2->id.bustype = BUS_I8042;
724 dev2->id.vendor = 0x0002;
725 dev2->id.product = PSMOUSE_ALPS;
726 dev2->id.version = 0x0000;
727 dev2->dev.parent = &psmouse->ps2dev.serio->dev;
729 dev2->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
730 dev2->relbit[BIT_WORD(REL_X)] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
731 dev2->keybit[BIT_WORD(BTN_LEFT)] =
732 BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_MIDDLE) | BIT_MASK(BTN_RIGHT);
734 if (input_register_device(priv->dev2))
737 psmouse->protocol_handler = alps_process_byte;
738 psmouse->poll = alps_poll;
739 psmouse->disconnect = alps_disconnect;
740 psmouse->reconnect = alps_reconnect;
741 psmouse->pktsize = 6;
743 /* We are having trouble resyncing ALPS touchpads so disable it for now */
744 psmouse->resync_time = 0;
749 psmouse_reset(psmouse);
750 input_free_device(dev2);
752 psmouse->private = NULL;
756 int alps_detect(struct psmouse *psmouse, bool set_properties)
759 const struct alps_model_info *model;
761 model = alps_get_model(psmouse, &version);
765 if (set_properties) {
766 psmouse->vendor = "ALPS";
767 psmouse->name = model->flags & ALPS_DUALPOINT ?
768 "DualPoint TouchPad" : "GlidePoint";
769 psmouse->model = version;