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/slab.h>
19 #include <linux/input.h>
20 #include <linux/input/mt.h>
21 #include <linux/serio.h>
22 #include <linux/libps2.h>
28 * Definitions for ALPS version 3 and 4 command mode protocol
30 #define ALPS_CMD_NIBBLE_10 0x01f2
32 #define ALPS_REG_BASE_RUSHMORE 0xc2c0
33 #define ALPS_REG_BASE_PINNACLE 0x0000
35 static const struct alps_nibble_commands alps_v3_nibble_commands
[] = {
36 { PSMOUSE_CMD_SETPOLL
, 0x00 }, /* 0 */
37 { PSMOUSE_CMD_RESET_DIS
, 0x00 }, /* 1 */
38 { PSMOUSE_CMD_SETSCALE21
, 0x00 }, /* 2 */
39 { PSMOUSE_CMD_SETRATE
, 0x0a }, /* 3 */
40 { PSMOUSE_CMD_SETRATE
, 0x14 }, /* 4 */
41 { PSMOUSE_CMD_SETRATE
, 0x28 }, /* 5 */
42 { PSMOUSE_CMD_SETRATE
, 0x3c }, /* 6 */
43 { PSMOUSE_CMD_SETRATE
, 0x50 }, /* 7 */
44 { PSMOUSE_CMD_SETRATE
, 0x64 }, /* 8 */
45 { PSMOUSE_CMD_SETRATE
, 0xc8 }, /* 9 */
46 { ALPS_CMD_NIBBLE_10
, 0x00 }, /* a */
47 { PSMOUSE_CMD_SETRES
, 0x00 }, /* b */
48 { PSMOUSE_CMD_SETRES
, 0x01 }, /* c */
49 { PSMOUSE_CMD_SETRES
, 0x02 }, /* d */
50 { PSMOUSE_CMD_SETRES
, 0x03 }, /* e */
51 { PSMOUSE_CMD_SETSCALE11
, 0x00 }, /* f */
54 static const struct alps_nibble_commands alps_v4_nibble_commands
[] = {
55 { PSMOUSE_CMD_ENABLE
, 0x00 }, /* 0 */
56 { PSMOUSE_CMD_RESET_DIS
, 0x00 }, /* 1 */
57 { PSMOUSE_CMD_SETSCALE21
, 0x00 }, /* 2 */
58 { PSMOUSE_CMD_SETRATE
, 0x0a }, /* 3 */
59 { PSMOUSE_CMD_SETRATE
, 0x14 }, /* 4 */
60 { PSMOUSE_CMD_SETRATE
, 0x28 }, /* 5 */
61 { PSMOUSE_CMD_SETRATE
, 0x3c }, /* 6 */
62 { PSMOUSE_CMD_SETRATE
, 0x50 }, /* 7 */
63 { PSMOUSE_CMD_SETRATE
, 0x64 }, /* 8 */
64 { PSMOUSE_CMD_SETRATE
, 0xc8 }, /* 9 */
65 { ALPS_CMD_NIBBLE_10
, 0x00 }, /* a */
66 { PSMOUSE_CMD_SETRES
, 0x00 }, /* b */
67 { PSMOUSE_CMD_SETRES
, 0x01 }, /* c */
68 { PSMOUSE_CMD_SETRES
, 0x02 }, /* d */
69 { PSMOUSE_CMD_SETRES
, 0x03 }, /* e */
70 { PSMOUSE_CMD_SETSCALE11
, 0x00 }, /* f */
73 static const struct alps_nibble_commands alps_v6_nibble_commands
[] = {
74 { PSMOUSE_CMD_ENABLE
, 0x00 }, /* 0 */
75 { PSMOUSE_CMD_SETRATE
, 0x0a }, /* 1 */
76 { PSMOUSE_CMD_SETRATE
, 0x14 }, /* 2 */
77 { PSMOUSE_CMD_SETRATE
, 0x28 }, /* 3 */
78 { PSMOUSE_CMD_SETRATE
, 0x3c }, /* 4 */
79 { PSMOUSE_CMD_SETRATE
, 0x50 }, /* 5 */
80 { PSMOUSE_CMD_SETRATE
, 0x64 }, /* 6 */
81 { PSMOUSE_CMD_SETRATE
, 0xc8 }, /* 7 */
82 { PSMOUSE_CMD_GETID
, 0x00 }, /* 8 */
83 { PSMOUSE_CMD_GETINFO
, 0x00 }, /* 9 */
84 { PSMOUSE_CMD_SETRES
, 0x00 }, /* a */
85 { PSMOUSE_CMD_SETRES
, 0x01 }, /* b */
86 { PSMOUSE_CMD_SETRES
, 0x02 }, /* c */
87 { PSMOUSE_CMD_SETRES
, 0x03 }, /* d */
88 { PSMOUSE_CMD_SETSCALE21
, 0x00 }, /* e */
89 { PSMOUSE_CMD_SETSCALE11
, 0x00 }, /* f */
93 #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */
94 #define ALPS_PASS 0x04 /* device has a pass-through port */
96 #define ALPS_WHEEL 0x08 /* hardware wheel present */
97 #define ALPS_FW_BK_1 0x10 /* front & back buttons present */
98 #define ALPS_FW_BK_2 0x20 /* front & back buttons present */
99 #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */
100 #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with
101 6-byte ALPS packet */
103 static const struct alps_model_info alps_model_data
[] = {
104 { { 0x32, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
}, /* Toshiba Salellite Pro M10 */
105 { { 0x33, 0x02, 0x0a }, 0x00, ALPS_PROTO_V1
, 0x88, 0xf8, 0 }, /* UMAX-530T */
106 { { 0x53, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 },
107 { { 0x53, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 },
108 { { 0x60, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 }, /* HP ze1115 */
109 { { 0x63, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 },
110 { { 0x63, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 },
111 { { 0x63, 0x02, 0x28 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_FW_BK_2
}, /* Fujitsu Siemens S6010 */
112 { { 0x63, 0x02, 0x3c }, 0x00, ALPS_PROTO_V2
, 0x8f, 0x8f, ALPS_WHEEL
}, /* Toshiba Satellite S2400-103 */
113 { { 0x63, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2
, 0xef, 0xef, ALPS_FW_BK_1
}, /* NEC Versa L320 */
114 { { 0x63, 0x02, 0x64 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 },
115 { { 0x63, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
}, /* Dell Latitude D800 */
116 { { 0x73, 0x00, 0x0a }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_DUALPOINT
}, /* ThinkPad R61 8918-5QG */
117 { { 0x73, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 },
118 { { 0x73, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_FW_BK_2
}, /* Ahtec Laptop */
119 { { 0x20, 0x02, 0x0e }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
}, /* XXX */
120 { { 0x22, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
},
121 { { 0x22, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xff, 0xff, ALPS_PASS
| ALPS_DUALPOINT
}, /* Dell Latitude D600 */
122 /* Dell Latitude E5500, E6400, E6500, Precision M4400 */
123 { { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xcf, 0xcf,
124 ALPS_PASS
| ALPS_DUALPOINT
| ALPS_PS2_INTERLEAVED
},
125 { { 0x73, 0x00, 0x14 }, 0x00, ALPS_PROTO_V6
, 0xff, 0xff, ALPS_DUALPOINT
}, /* Dell XT2 */
126 { { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2
, 0xcf, 0xcf, ALPS_FOUR_BUTTONS
}, /* Dell Vostro 1400 */
127 { { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xff, 0xff,
128 ALPS_PASS
| ALPS_DUALPOINT
| ALPS_PS2_INTERLEAVED
}, /* Toshiba Tecra A11-11L */
129 { { 0x73, 0x02, 0x64 }, 0x8a, ALPS_PROTO_V4
, 0x8f, 0x8f, 0 },
132 static void alps_set_abs_params_st(struct alps_data
*priv
,
133 struct input_dev
*dev1
);
134 static void alps_set_abs_params_mt(struct alps_data
*priv
,
135 struct input_dev
*dev1
);
138 * XXX - this entry is suspicious. First byte has zero lower nibble,
139 * which is what a normal mouse would report. Also, the value 0x0e
140 * isn't valid per PS/2 spec.
143 /* Packet formats are described in Documentation/input/alps.txt */
145 static bool alps_is_valid_first_byte(struct alps_data
*priv
,
148 return (data
& priv
->mask0
) == priv
->byte0
;
151 static void alps_report_buttons(struct psmouse
*psmouse
,
152 struct input_dev
*dev1
, struct input_dev
*dev2
,
153 int left
, int right
, int middle
)
155 struct input_dev
*dev
;
158 * If shared button has already been reported on the
159 * other device (dev2) then this event should be also
160 * sent through that device.
162 dev
= test_bit(BTN_LEFT
, dev2
->key
) ? dev2
: dev1
;
163 input_report_key(dev
, BTN_LEFT
, left
);
165 dev
= test_bit(BTN_RIGHT
, dev2
->key
) ? dev2
: dev1
;
166 input_report_key(dev
, BTN_RIGHT
, right
);
168 dev
= test_bit(BTN_MIDDLE
, dev2
->key
) ? dev2
: dev1
;
169 input_report_key(dev
, BTN_MIDDLE
, middle
);
172 * Sync the _other_ device now, we'll do the first
173 * device later once we report the rest of the events.
178 static void alps_process_packet_v1_v2(struct psmouse
*psmouse
)
180 struct alps_data
*priv
= psmouse
->private;
181 unsigned char *packet
= psmouse
->packet
;
182 struct input_dev
*dev
= psmouse
->dev
;
183 struct input_dev
*dev2
= priv
->dev2
;
184 int x
, y
, z
, ges
, fin
, left
, right
, middle
;
185 int back
= 0, forward
= 0;
187 if (priv
->proto_version
== ALPS_PROTO_V1
) {
188 left
= packet
[2] & 0x10;
189 right
= packet
[2] & 0x08;
191 x
= packet
[1] | ((packet
[0] & 0x07) << 7);
192 y
= packet
[4] | ((packet
[3] & 0x07) << 7);
195 left
= packet
[3] & 1;
196 right
= packet
[3] & 2;
197 middle
= packet
[3] & 4;
198 x
= packet
[1] | ((packet
[2] & 0x78) << (7 - 3));
199 y
= packet
[4] | ((packet
[3] & 0x70) << (7 - 4));
203 if (priv
->flags
& ALPS_FW_BK_1
) {
204 back
= packet
[0] & 0x10;
205 forward
= packet
[2] & 4;
208 if (priv
->flags
& ALPS_FW_BK_2
) {
209 back
= packet
[3] & 4;
210 forward
= packet
[2] & 4;
211 if ((middle
= forward
&& back
))
218 if ((priv
->flags
& ALPS_DUALPOINT
) && z
== 127) {
219 input_report_rel(dev2
, REL_X
, (x
> 383 ? (x
- 768) : x
));
220 input_report_rel(dev2
, REL_Y
, -(y
> 255 ? (y
- 512) : y
));
222 alps_report_buttons(psmouse
, dev2
, dev
, left
, right
, middle
);
228 alps_report_buttons(psmouse
, dev
, dev2
, left
, right
, middle
);
230 /* Convert hardware tap to a reasonable Z value */
235 * A "tap and drag" operation is reported by the hardware as a transition
236 * from (!fin && ges) to (fin && ges). This should be translated to the
237 * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually.
239 if (ges
&& fin
&& !priv
->prev_fin
) {
240 input_report_abs(dev
, ABS_X
, x
);
241 input_report_abs(dev
, ABS_Y
, y
);
242 input_report_abs(dev
, ABS_PRESSURE
, 0);
243 input_report_key(dev
, BTN_TOOL_FINGER
, 0);
246 priv
->prev_fin
= fin
;
249 input_report_key(dev
, BTN_TOUCH
, 1);
251 input_report_key(dev
, BTN_TOUCH
, 0);
254 input_report_abs(dev
, ABS_X
, x
);
255 input_report_abs(dev
, ABS_Y
, y
);
258 input_report_abs(dev
, ABS_PRESSURE
, z
);
259 input_report_key(dev
, BTN_TOOL_FINGER
, z
> 0);
261 if (priv
->flags
& ALPS_WHEEL
)
262 input_report_rel(dev
, REL_WHEEL
, ((packet
[2] << 1) & 0x08) - ((packet
[0] >> 4) & 0x07));
264 if (priv
->flags
& (ALPS_FW_BK_1
| ALPS_FW_BK_2
)) {
265 input_report_key(dev
, BTN_FORWARD
, forward
);
266 input_report_key(dev
, BTN_BACK
, back
);
269 if (priv
->flags
& ALPS_FOUR_BUTTONS
) {
270 input_report_key(dev
, BTN_0
, packet
[2] & 4);
271 input_report_key(dev
, BTN_1
, packet
[0] & 0x10);
272 input_report_key(dev
, BTN_2
, packet
[3] & 4);
273 input_report_key(dev
, BTN_3
, packet
[0] & 0x20);
280 * Process bitmap data from v3 and v4 protocols. Returns the number of
281 * fingers detected. A return value of 0 means at least one of the
284 * The bitmaps don't have enough data to track fingers, so this function
285 * only generates points representing a bounding box of all contacts.
286 * These points are returned in x1, y1, x2, and y2 when the return value
289 static int alps_process_bitmap(struct alps_data
*priv
,
290 unsigned int x_map
, unsigned int y_map
,
291 int *x1
, int *y1
, int *x2
, int *y2
)
293 struct alps_bitmap_point
{
298 int fingers_x
= 0, fingers_y
= 0, fingers
;
299 int i
, bit
, prev_bit
;
300 struct alps_bitmap_point x_low
= {0,}, x_high
= {0,};
301 struct alps_bitmap_point y_low
= {0,}, y_high
= {0,};
302 struct alps_bitmap_point
*point
;
304 if (!x_map
|| !y_map
)
307 *x1
= *y1
= *x2
= *y2
= 0;
311 for (i
= 0; x_map
!= 0; i
++, x_map
>>= 1) {
315 point
->start_bit
= i
;
329 * y bitmap is reversed for what we need (lower positions are in
330 * higher bits), so we process from the top end.
332 y_map
= y_map
<< (sizeof(y_map
) * BITS_PER_BYTE
- priv
->y_bits
);
335 for (i
= 0; y_map
!= 0; i
++, y_map
<<= 1) {
336 bit
= y_map
& (1 << (sizeof(y_map
) * BITS_PER_BYTE
- 1));
339 point
->start_bit
= i
;
353 * Fingers can overlap, so we use the maximum count of fingers
354 * on either axis as the finger count.
356 fingers
= max(fingers_x
, fingers_y
);
359 * If total fingers is > 1 but either axis reports only a single
360 * contact, we have overlapping or adjacent fingers. For the
361 * purposes of creating a bounding box, divide the single contact
362 * (roughly) equally between the two points.
365 if (fingers_x
== 1) {
366 i
= x_low
.num_bits
/ 2;
367 x_low
.num_bits
= x_low
.num_bits
- i
;
368 x_high
.start_bit
= x_low
.start_bit
+ i
;
369 x_high
.num_bits
= max(i
, 1);
370 } else if (fingers_y
== 1) {
371 i
= y_low
.num_bits
/ 2;
372 y_low
.num_bits
= y_low
.num_bits
- i
;
373 y_high
.start_bit
= y_low
.start_bit
+ i
;
374 y_high
.num_bits
= max(i
, 1);
378 *x1
= (priv
->x_max
* (2 * x_low
.start_bit
+ x_low
.num_bits
- 1)) /
379 (2 * (priv
->x_bits
- 1));
380 *y1
= (priv
->y_max
* (2 * y_low
.start_bit
+ y_low
.num_bits
- 1)) /
381 (2 * (priv
->y_bits
- 1));
385 (2 * x_high
.start_bit
+ x_high
.num_bits
- 1)) /
386 (2 * (priv
->x_bits
- 1));
388 (2 * y_high
.start_bit
+ y_high
.num_bits
- 1)) /
389 (2 * (priv
->y_bits
- 1));
395 static void alps_set_slot(struct input_dev
*dev
, int slot
, bool active
,
398 input_mt_slot(dev
, slot
);
399 input_mt_report_slot_state(dev
, MT_TOOL_FINGER
, active
);
401 input_report_abs(dev
, ABS_MT_POSITION_X
, x
);
402 input_report_abs(dev
, ABS_MT_POSITION_Y
, y
);
406 static void alps_report_semi_mt_data(struct input_dev
*dev
, int num_fingers
,
407 int x1
, int y1
, int x2
, int y2
)
409 alps_set_slot(dev
, 0, num_fingers
!= 0, x1
, y1
);
410 alps_set_slot(dev
, 1, num_fingers
== 2, x2
, y2
);
413 static void alps_process_trackstick_packet_v3(struct psmouse
*psmouse
)
415 struct alps_data
*priv
= psmouse
->private;
416 unsigned char *packet
= psmouse
->packet
;
417 struct input_dev
*dev
= priv
->dev2
;
418 int x
, y
, z
, left
, right
, middle
;
420 /* Sanity check packet */
421 if (!(packet
[0] & 0x40)) {
422 psmouse_dbg(psmouse
, "Bad trackstick packet, discarding\n");
427 * There's a special packet that seems to indicate the end
428 * of a stream of trackstick data. Filter these out.
430 if (packet
[1] == 0x7f && packet
[2] == 0x7f && packet
[4] == 0x7f)
433 x
= (s8
)(((packet
[0] & 0x20) << 2) | (packet
[1] & 0x7f));
434 y
= (s8
)(((packet
[0] & 0x10) << 3) | (packet
[2] & 0x7f));
435 z
= (packet
[4] & 0x7c) >> 2;
438 * The x and y values tend to be quite large, and when used
439 * alone the trackstick is difficult to use. Scale them down
445 input_report_rel(dev
, REL_X
, x
);
446 input_report_rel(dev
, REL_Y
, -y
);
449 * Most ALPS models report the trackstick buttons in the touchpad
450 * packets, but a few report them here. No reliable way has been
451 * found to differentiate between the models upfront, so we enable
452 * the quirk in response to seeing a button press in the trackstick
455 left
= packet
[3] & 0x01;
456 right
= packet
[3] & 0x02;
457 middle
= packet
[3] & 0x04;
459 if (!(priv
->quirks
& ALPS_QUIRK_TRACKSTICK_BUTTONS
) &&
460 (left
|| right
|| middle
))
461 priv
->quirks
|= ALPS_QUIRK_TRACKSTICK_BUTTONS
;
463 if (priv
->quirks
& ALPS_QUIRK_TRACKSTICK_BUTTONS
) {
464 input_report_key(dev
, BTN_LEFT
, left
);
465 input_report_key(dev
, BTN_RIGHT
, right
);
466 input_report_key(dev
, BTN_MIDDLE
, middle
);
473 static void alps_decode_buttons_v3(struct alps_fields
*f
, unsigned char *p
)
475 f
->left
= !!(p
[3] & 0x01);
476 f
->right
= !!(p
[3] & 0x02);
477 f
->middle
= !!(p
[3] & 0x04);
479 f
->ts_left
= !!(p
[3] & 0x10);
480 f
->ts_right
= !!(p
[3] & 0x20);
481 f
->ts_middle
= !!(p
[3] & 0x40);
484 static void alps_decode_pinnacle(struct alps_fields
*f
, unsigned char *p
)
486 f
->first_mp
= !!(p
[4] & 0x40);
487 f
->is_mp
= !!(p
[0] & 0x40);
489 f
->fingers
= (p
[5] & 0x3) + 1;
490 f
->x_map
= ((p
[4] & 0x7e) << 8) |
491 ((p
[1] & 0x7f) << 2) |
492 ((p
[0] & 0x30) >> 4);
493 f
->y_map
= ((p
[3] & 0x70) << 4) |
494 ((p
[2] & 0x7f) << 1) |
497 f
->x
= ((p
[1] & 0x7f) << 4) | ((p
[4] & 0x30) >> 2) |
498 ((p
[0] & 0x30) >> 4);
499 f
->y
= ((p
[2] & 0x7f) << 4) | (p
[4] & 0x0f);
502 alps_decode_buttons_v3(f
, p
);
505 static void alps_decode_rushmore(struct alps_fields
*f
, unsigned char *p
)
507 alps_decode_pinnacle(f
, p
);
509 f
->x_map
|= (p
[5] & 0x10) << 11;
510 f
->y_map
|= (p
[5] & 0x20) << 6;
513 static void alps_decode_dolphin(struct alps_fields
*f
, unsigned char *p
)
515 f
->first_mp
= !!(p
[0] & 0x02);
516 f
->is_mp
= !!(p
[0] & 0x20);
518 f
->fingers
= ((p
[0] & 0x6) >> 1 |
520 f
->x_map
= ((p
[2] & 0x60) >> 5) |
521 ((p
[4] & 0x7f) << 2) |
522 ((p
[5] & 0x7f) << 9) |
523 ((p
[3] & 0x07) << 16) |
524 ((p
[3] & 0x70) << 15) |
525 ((p
[0] & 0x01) << 22);
526 f
->y_map
= (p
[1] & 0x7f) |
527 ((p
[2] & 0x1f) << 7);
529 f
->x
= ((p
[1] & 0x7f) | ((p
[4] & 0x0f) << 7));
530 f
->y
= ((p
[2] & 0x7f) | ((p
[4] & 0xf0) << 3));
531 f
->z
= (p
[0] & 4) ? 0 : p
[5] & 0x7f;
533 alps_decode_buttons_v3(f
, p
);
536 static void alps_process_touchpad_packet_v3(struct psmouse
*psmouse
)
538 struct alps_data
*priv
= psmouse
->private;
539 unsigned char *packet
= psmouse
->packet
;
540 struct input_dev
*dev
= psmouse
->dev
;
541 struct input_dev
*dev2
= priv
->dev2
;
542 int x1
= 0, y1
= 0, x2
= 0, y2
= 0;
543 int fingers
= 0, bmap_fingers
;
544 struct alps_fields f
;
546 priv
->decode_fields(&f
, packet
);
549 * There's no single feature of touchpad position and bitmap packets
550 * that can be used to distinguish between them. We rely on the fact
551 * that a bitmap packet should always follow a position packet with
552 * bit 6 of packet[4] set.
554 if (priv
->multi_packet
) {
556 * Sometimes a position packet will indicate a multi-packet
557 * sequence, but then what follows is another position
558 * packet. Check for this, and when it happens process the
559 * position packet as usual.
563 bmap_fingers
= alps_process_bitmap(priv
,
568 * We shouldn't report more than one finger if
569 * we don't have two coordinates.
571 if (fingers
> 1 && bmap_fingers
< 2)
572 fingers
= bmap_fingers
;
574 /* Now process position packet */
575 priv
->decode_fields(&f
, priv
->multi_data
);
577 priv
->multi_packet
= 0;
582 * Bit 6 of byte 0 is not usually set in position packets. The only
583 * times it seems to be set is in situations where the data is
584 * suspect anyway, e.g. a palm resting flat on the touchpad. Given
585 * this combined with the fact that this bit is useful for filtering
586 * out misidentified bitmap packets, we reject anything with this
592 if (!priv
->multi_packet
&& f
.first_mp
) {
593 priv
->multi_packet
= 1;
594 memcpy(priv
->multi_data
, packet
, sizeof(priv
->multi_data
));
598 priv
->multi_packet
= 0;
601 * Sometimes the hardware sends a single packet with z = 0
602 * in the middle of a stream. Real releases generate packets
603 * with x, y, and z all zero, so these seem to be flukes.
606 if (f
.x
&& f
.y
&& !f
.z
)
610 * If we don't have MT data or the bitmaps were empty, we have
611 * to rely on ST data.
616 fingers
= f
.z
> 0 ? 1 : 0;
620 input_report_key(dev
, BTN_TOUCH
, 1);
622 input_report_key(dev
, BTN_TOUCH
, 0);
624 alps_report_semi_mt_data(dev
, fingers
, x1
, y1
, x2
, y2
);
626 input_mt_report_finger_count(dev
, fingers
);
628 input_report_key(dev
, BTN_LEFT
, f
.left
);
629 input_report_key(dev
, BTN_RIGHT
, f
.right
);
630 input_report_key(dev
, BTN_MIDDLE
, f
.middle
);
633 input_report_abs(dev
, ABS_X
, f
.x
);
634 input_report_abs(dev
, ABS_Y
, f
.y
);
636 input_report_abs(dev
, ABS_PRESSURE
, f
.z
);
640 if (!(priv
->quirks
& ALPS_QUIRK_TRACKSTICK_BUTTONS
)) {
641 input_report_key(dev2
, BTN_LEFT
, f
.ts_left
);
642 input_report_key(dev2
, BTN_RIGHT
, f
.ts_right
);
643 input_report_key(dev2
, BTN_MIDDLE
, f
.ts_middle
);
648 static void alps_process_packet_v3(struct psmouse
*psmouse
)
650 unsigned char *packet
= psmouse
->packet
;
653 * v3 protocol packets come in three types, two representing
654 * touchpad data and one representing trackstick data.
655 * Trackstick packets seem to be distinguished by always
656 * having 0x3f in the last byte. This value has never been
657 * observed in the last byte of either of the other types
660 if (packet
[5] == 0x3f) {
661 alps_process_trackstick_packet_v3(psmouse
);
665 alps_process_touchpad_packet_v3(psmouse
);
668 static void alps_process_packet_v6(struct psmouse
*psmouse
)
670 struct alps_data
*priv
= psmouse
->private;
671 unsigned char *packet
= psmouse
->packet
;
672 struct input_dev
*dev
= psmouse
->dev
;
673 struct input_dev
*dev2
= priv
->dev2
;
674 int x
, y
, z
, left
, right
, middle
;
677 * We can use Byte5 to distinguish if the packet is from Touchpad
682 if (packet
[5] == 0x7F) {
683 /* It should be a DualPoint when received Trackpoint packet */
684 if (!(priv
->flags
& ALPS_DUALPOINT
))
687 /* Trackpoint packet */
688 x
= packet
[1] | ((packet
[3] & 0x20) << 2);
689 y
= packet
[2] | ((packet
[3] & 0x40) << 1);
691 left
= packet
[3] & 0x01;
692 right
= packet
[3] & 0x02;
693 middle
= packet
[3] & 0x04;
695 /* To prevent the cursor jump when finger lifted */
696 if (x
== 0x7F && y
== 0x7F && z
== 0x7F)
699 /* Divide 4 since trackpoint's speed is too fast */
700 input_report_rel(dev2
, REL_X
, (char)x
/ 4);
701 input_report_rel(dev2
, REL_Y
, -((char)y
/ 4));
703 input_report_key(dev2
, BTN_LEFT
, left
);
704 input_report_key(dev2
, BTN_RIGHT
, right
);
705 input_report_key(dev2
, BTN_MIDDLE
, middle
);
711 /* Touchpad packet */
712 x
= packet
[1] | ((packet
[3] & 0x78) << 4);
713 y
= packet
[2] | ((packet
[4] & 0x78) << 4);
715 left
= packet
[3] & 0x01;
716 right
= packet
[3] & 0x02;
719 input_report_key(dev
, BTN_TOUCH
, 1);
721 input_report_key(dev
, BTN_TOUCH
, 0);
724 input_report_abs(dev
, ABS_X
, x
);
725 input_report_abs(dev
, ABS_Y
, y
);
728 input_report_abs(dev
, ABS_PRESSURE
, z
);
729 input_report_key(dev
, BTN_TOOL_FINGER
, z
> 0);
731 /* v6 touchpad does not have middle button */
732 input_report_key(dev
, BTN_LEFT
, left
);
733 input_report_key(dev
, BTN_RIGHT
, right
);
738 static void alps_process_packet_v4(struct psmouse
*psmouse
)
740 struct alps_data
*priv
= psmouse
->private;
741 unsigned char *packet
= psmouse
->packet
;
742 struct input_dev
*dev
= psmouse
->dev
;
748 unsigned int x_bitmap
, y_bitmap
;
751 * v4 has a 6-byte encoding for bitmap data, but this data is
752 * broken up between 3 normal packets. Use priv->multi_packet to
753 * track our position in the bitmap packet.
755 if (packet
[6] & 0x40) {
756 /* sync, reset position */
757 priv
->multi_packet
= 0;
760 if (WARN_ON_ONCE(priv
->multi_packet
> 2))
763 offset
= 2 * priv
->multi_packet
;
764 priv
->multi_data
[offset
] = packet
[6];
765 priv
->multi_data
[offset
+ 1] = packet
[7];
767 if (++priv
->multi_packet
> 2) {
768 priv
->multi_packet
= 0;
770 x_bitmap
= ((priv
->multi_data
[2] & 0x1f) << 10) |
771 ((priv
->multi_data
[3] & 0x60) << 3) |
772 ((priv
->multi_data
[0] & 0x3f) << 2) |
773 ((priv
->multi_data
[1] & 0x60) >> 5);
774 y_bitmap
= ((priv
->multi_data
[5] & 0x01) << 10) |
775 ((priv
->multi_data
[3] & 0x1f) << 5) |
776 (priv
->multi_data
[1] & 0x1f);
778 fingers
= alps_process_bitmap(priv
, x_bitmap
, y_bitmap
,
782 priv
->fingers
= fingers
;
789 left
= packet
[4] & 0x01;
790 right
= packet
[4] & 0x02;
792 x
= ((packet
[1] & 0x7f) << 4) | ((packet
[3] & 0x30) >> 2) |
793 ((packet
[0] & 0x30) >> 4);
794 y
= ((packet
[2] & 0x7f) << 4) | (packet
[3] & 0x0f);
795 z
= packet
[5] & 0x7f;
798 * If there were no contacts in the bitmap, use ST
799 * points in MT reports.
800 * If there were two contacts or more, report MT data.
802 if (priv
->fingers
< 2) {
805 fingers
= z
> 0 ? 1 : 0;
807 fingers
= priv
->fingers
;
815 input_report_key(dev
, BTN_TOUCH
, 1);
817 input_report_key(dev
, BTN_TOUCH
, 0);
819 alps_report_semi_mt_data(dev
, fingers
, x1
, y1
, x2
, y2
);
821 input_mt_report_finger_count(dev
, fingers
);
823 input_report_key(dev
, BTN_LEFT
, left
);
824 input_report_key(dev
, BTN_RIGHT
, right
);
827 input_report_abs(dev
, ABS_X
, x
);
828 input_report_abs(dev
, ABS_Y
, y
);
830 input_report_abs(dev
, ABS_PRESSURE
, z
);
835 static void alps_report_bare_ps2_packet(struct psmouse
*psmouse
,
836 unsigned char packet
[],
839 struct alps_data
*priv
= psmouse
->private;
840 struct input_dev
*dev2
= priv
->dev2
;
843 alps_report_buttons(psmouse
, dev2
, psmouse
->dev
,
844 packet
[0] & 1, packet
[0] & 2, packet
[0] & 4);
846 input_report_rel(dev2
, REL_X
,
847 packet
[1] ? packet
[1] - ((packet
[0] << 4) & 0x100) : 0);
848 input_report_rel(dev2
, REL_Y
,
849 packet
[2] ? ((packet
[0] << 3) & 0x100) - packet
[2] : 0);
854 static psmouse_ret_t
alps_handle_interleaved_ps2(struct psmouse
*psmouse
)
856 struct alps_data
*priv
= psmouse
->private;
858 if (psmouse
->pktcnt
< 6)
859 return PSMOUSE_GOOD_DATA
;
861 if (psmouse
->pktcnt
== 6) {
863 * Start a timer to flush the packet if it ends up last
864 * 6-byte packet in the stream. Timer needs to fire
865 * psmouse core times out itself. 20 ms should be enough
866 * to decide if we are getting more data or not.
868 mod_timer(&priv
->timer
, jiffies
+ msecs_to_jiffies(20));
869 return PSMOUSE_GOOD_DATA
;
872 del_timer(&priv
->timer
);
874 if (psmouse
->packet
[6] & 0x80) {
877 * Highest bit is set - that means we either had
878 * complete ALPS packet and this is start of the
879 * next packet or we got garbage.
882 if (((psmouse
->packet
[3] |
884 psmouse
->packet
[5]) & 0x80) ||
885 (!alps_is_valid_first_byte(priv
, psmouse
->packet
[6]))) {
887 "refusing packet %4ph (suspected interleaved ps/2)\n",
888 psmouse
->packet
+ 3);
889 return PSMOUSE_BAD_DATA
;
892 priv
->process_packet(psmouse
);
894 /* Continue with the next packet */
895 psmouse
->packet
[0] = psmouse
->packet
[6];
901 * High bit is 0 - that means that we indeed got a PS/2
902 * packet in the middle of ALPS packet.
904 * There is also possibility that we got 6-byte ALPS
905 * packet followed by 3-byte packet from trackpoint. We
906 * can not distinguish between these 2 scenarios but
907 * because the latter is unlikely to happen in course of
908 * normal operation (user would need to press all
909 * buttons on the pad and start moving trackpoint
910 * without touching the pad surface) we assume former.
911 * Even if we are wrong the wost thing that would happen
912 * the cursor would jump but we should not get protocol
913 * de-synchronization.
916 alps_report_bare_ps2_packet(psmouse
, &psmouse
->packet
[3],
920 * Continue with the standard ALPS protocol handling,
921 * but make sure we won't process it as an interleaved
922 * packet again, which may happen if all buttons are
923 * pressed. To avoid this let's reset the 4th bit which
926 psmouse
->packet
[3] = psmouse
->packet
[6] & 0xf7;
930 return PSMOUSE_GOOD_DATA
;
933 static void alps_flush_packet(unsigned long data
)
935 struct psmouse
*psmouse
= (struct psmouse
*)data
;
936 struct alps_data
*priv
= psmouse
->private;
938 serio_pause_rx(psmouse
->ps2dev
.serio
);
940 if (psmouse
->pktcnt
== psmouse
->pktsize
) {
943 * We did not any more data in reasonable amount of time.
944 * Validate the last 3 bytes and process as a standard
947 if ((psmouse
->packet
[3] |
949 psmouse
->packet
[5]) & 0x80) {
951 "refusing packet %3ph (suspected interleaved ps/2)\n",
952 psmouse
->packet
+ 3);
954 priv
->process_packet(psmouse
);
959 serio_continue_rx(psmouse
->ps2dev
.serio
);
962 static psmouse_ret_t
alps_process_byte(struct psmouse
*psmouse
)
964 struct alps_data
*priv
= psmouse
->private;
966 if ((psmouse
->packet
[0] & 0xc8) == 0x08) { /* PS/2 packet */
967 if (psmouse
->pktcnt
== 3) {
968 alps_report_bare_ps2_packet(psmouse
, psmouse
->packet
,
970 return PSMOUSE_FULL_PACKET
;
972 return PSMOUSE_GOOD_DATA
;
975 /* Check for PS/2 packet stuffed in the middle of ALPS packet. */
977 if ((priv
->flags
& ALPS_PS2_INTERLEAVED
) &&
978 psmouse
->pktcnt
>= 4 && (psmouse
->packet
[3] & 0x0f) == 0x0f) {
979 return alps_handle_interleaved_ps2(psmouse
);
982 if (!alps_is_valid_first_byte(priv
, psmouse
->packet
[0])) {
984 "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
985 psmouse
->packet
[0], priv
->mask0
, priv
->byte0
);
986 return PSMOUSE_BAD_DATA
;
989 /* Bytes 2 - pktsize should have 0 in the highest bit */
990 if ((priv
->proto_version
< ALPS_PROTO_V5
) &&
991 psmouse
->pktcnt
>= 2 && psmouse
->pktcnt
<= psmouse
->pktsize
&&
992 (psmouse
->packet
[psmouse
->pktcnt
- 1] & 0x80)) {
993 psmouse_dbg(psmouse
, "refusing packet[%i] = %x\n",
995 psmouse
->packet
[psmouse
->pktcnt
- 1]);
996 return PSMOUSE_BAD_DATA
;
999 if (psmouse
->pktcnt
== psmouse
->pktsize
) {
1000 priv
->process_packet(psmouse
);
1001 return PSMOUSE_FULL_PACKET
;
1004 return PSMOUSE_GOOD_DATA
;
1007 static int alps_command_mode_send_nibble(struct psmouse
*psmouse
, int nibble
)
1009 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1010 struct alps_data
*priv
= psmouse
->private;
1012 unsigned char *param
;
1013 unsigned char dummy
[4];
1015 BUG_ON(nibble
> 0xf);
1017 command
= priv
->nibble_commands
[nibble
].command
;
1018 param
= (command
& 0x0f00) ?
1019 dummy
: (unsigned char *)&priv
->nibble_commands
[nibble
].data
;
1021 if (ps2_command(ps2dev
, param
, command
))
1027 static int alps_command_mode_set_addr(struct psmouse
*psmouse
, int addr
)
1029 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1030 struct alps_data
*priv
= psmouse
->private;
1033 if (ps2_command(ps2dev
, NULL
, priv
->addr_command
))
1036 for (i
= 12; i
>= 0; i
-= 4) {
1037 nibble
= (addr
>> i
) & 0xf;
1038 if (alps_command_mode_send_nibble(psmouse
, nibble
))
1045 static int __alps_command_mode_read_reg(struct psmouse
*psmouse
, int addr
)
1047 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1048 unsigned char param
[4];
1050 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
1054 * The address being read is returned in the first two bytes
1055 * of the result. Check that this address matches the expected
1058 if (addr
!= ((param
[0] << 8) | param
[1]))
1064 static int alps_command_mode_read_reg(struct psmouse
*psmouse
, int addr
)
1066 if (alps_command_mode_set_addr(psmouse
, addr
))
1068 return __alps_command_mode_read_reg(psmouse
, addr
);
1071 static int __alps_command_mode_write_reg(struct psmouse
*psmouse
, u8 value
)
1073 if (alps_command_mode_send_nibble(psmouse
, (value
>> 4) & 0xf))
1075 if (alps_command_mode_send_nibble(psmouse
, value
& 0xf))
1080 static int alps_command_mode_write_reg(struct psmouse
*psmouse
, int addr
,
1083 if (alps_command_mode_set_addr(psmouse
, addr
))
1085 return __alps_command_mode_write_reg(psmouse
, value
);
1088 static int alps_rpt_cmd(struct psmouse
*psmouse
, int init_command
,
1089 int repeated_command
, unsigned char *param
)
1091 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1094 if (init_command
&& ps2_command(ps2dev
, param
, init_command
))
1097 if (ps2_command(ps2dev
, NULL
, repeated_command
) ||
1098 ps2_command(ps2dev
, NULL
, repeated_command
) ||
1099 ps2_command(ps2dev
, NULL
, repeated_command
))
1102 param
[0] = param
[1] = param
[2] = 0xff;
1103 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
1106 psmouse_dbg(psmouse
, "%2.2X report: %3ph\n",
1107 repeated_command
, param
);
1111 static int alps_enter_command_mode(struct psmouse
*psmouse
)
1113 unsigned char param
[4];
1115 if (alps_rpt_cmd(psmouse
, 0, PSMOUSE_CMD_RESET_WRAP
, param
)) {
1116 psmouse_err(psmouse
, "failed to enter command mode\n");
1120 if ((param
[0] != 0x88 || (param
[1] != 0x07 && param
[1] != 0x08)) &&
1122 psmouse_dbg(psmouse
,
1123 "unknown response while entering command mode\n");
1129 static inline int alps_exit_command_mode(struct psmouse
*psmouse
)
1131 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1132 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
))
1138 * For DualPoint devices select the device that should respond to
1139 * subsequent commands. It looks like glidepad is behind stickpointer,
1140 * I'd thought it would be other way around...
1142 static int alps_passthrough_mode_v2(struct psmouse
*psmouse
, bool enable
)
1144 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1145 int cmd
= enable
? PSMOUSE_CMD_SETSCALE21
: PSMOUSE_CMD_SETSCALE11
;
1147 if (ps2_command(ps2dev
, NULL
, cmd
) ||
1148 ps2_command(ps2dev
, NULL
, cmd
) ||
1149 ps2_command(ps2dev
, NULL
, cmd
) ||
1150 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
))
1153 /* we may get 3 more bytes, just ignore them */
1154 ps2_drain(ps2dev
, 3, 100);
1159 static int alps_absolute_mode_v1_v2(struct psmouse
*psmouse
)
1161 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1163 /* Try ALPS magic knock - 4 disable before enable */
1164 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1165 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1166 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1167 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1168 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
))
1172 * Switch mouse to poll (remote) mode so motion data will not
1175 return ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETPOLL
);
1178 static int alps_monitor_mode_send_word(struct psmouse
*psmouse
, u16 word
)
1183 * b0-b11 are valid bits, send sequence is inverse.
1184 * e.g. when word = 0x0123, nibble send sequence is 3, 2, 1
1186 for (i
= 0; i
<= 8; i
+= 4) {
1187 nibble
= (word
>> i
) & 0xf;
1188 if (alps_command_mode_send_nibble(psmouse
, nibble
))
1195 static int alps_monitor_mode_write_reg(struct psmouse
*psmouse
,
1196 u16 addr
, u16 value
)
1198 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1200 /* 0x0A0 is the command to write the word */
1201 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
) ||
1202 alps_monitor_mode_send_word(psmouse
, 0x0A0) ||
1203 alps_monitor_mode_send_word(psmouse
, addr
) ||
1204 alps_monitor_mode_send_word(psmouse
, value
) ||
1205 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
))
1211 static int alps_monitor_mode(struct psmouse
*psmouse
, bool enable
)
1213 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1216 /* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */
1217 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_RESET_WRAP
) ||
1218 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_GETINFO
) ||
1219 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1220 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1221 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE21
) ||
1222 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1223 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE21
) ||
1224 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_GETINFO
))
1227 /* EC to exit monitor mode */
1228 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_RESET_WRAP
))
1235 static int alps_absolute_mode_v6(struct psmouse
*psmouse
)
1237 u16 reg_val
= 0x181;
1240 /* enter monitor mode, to write the register */
1241 if (alps_monitor_mode(psmouse
, true))
1244 ret
= alps_monitor_mode_write_reg(psmouse
, 0x000, reg_val
);
1246 if (alps_monitor_mode(psmouse
, false))
1252 static int alps_get_status(struct psmouse
*psmouse
, char *param
)
1254 /* Get status: 0xF5 0xF5 0xF5 0xE9 */
1255 if (alps_rpt_cmd(psmouse
, 0, PSMOUSE_CMD_DISABLE
, param
))
1262 * Turn touchpad tapping on or off. The sequences are:
1263 * 0xE9 0xF5 0xF5 0xF3 0x0A to enable,
1264 * 0xE9 0xF5 0xF5 0xE8 0x00 to disable.
1265 * My guess that 0xE9 (GetInfo) is here as a sync point.
1266 * For models that also have stickpointer (DualPoints) its tapping
1267 * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but
1268 * we don't fiddle with it.
1270 static int alps_tap_mode(struct psmouse
*psmouse
, int enable
)
1272 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1273 int cmd
= enable
? PSMOUSE_CMD_SETRATE
: PSMOUSE_CMD_SETRES
;
1274 unsigned char tap_arg
= enable
? 0x0A : 0x00;
1275 unsigned char param
[4];
1277 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
) ||
1278 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1279 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1280 ps2_command(ps2dev
, &tap_arg
, cmd
))
1283 if (alps_get_status(psmouse
, param
))
1290 * alps_poll() - poll the touchpad for current motion packet.
1293 static int alps_poll(struct psmouse
*psmouse
)
1295 struct alps_data
*priv
= psmouse
->private;
1296 unsigned char buf
[sizeof(psmouse
->packet
)];
1299 if (priv
->flags
& ALPS_PASS
)
1300 alps_passthrough_mode_v2(psmouse
, true);
1302 poll_failed
= ps2_command(&psmouse
->ps2dev
, buf
,
1303 PSMOUSE_CMD_POLL
| (psmouse
->pktsize
<< 8)) < 0;
1305 if (priv
->flags
& ALPS_PASS
)
1306 alps_passthrough_mode_v2(psmouse
, false);
1308 if (poll_failed
|| (buf
[0] & priv
->mask0
) != priv
->byte0
)
1311 if ((psmouse
->badbyte
& 0xc8) == 0x08) {
1313 * Poll the track stick ...
1315 if (ps2_command(&psmouse
->ps2dev
, buf
, PSMOUSE_CMD_POLL
| (3 << 8)))
1319 memcpy(psmouse
->packet
, buf
, sizeof(buf
));
1323 static int alps_hw_init_v1_v2(struct psmouse
*psmouse
)
1325 struct alps_data
*priv
= psmouse
->private;
1327 if ((priv
->flags
& ALPS_PASS
) &&
1328 alps_passthrough_mode_v2(psmouse
, true)) {
1332 if (alps_tap_mode(psmouse
, true)) {
1333 psmouse_warn(psmouse
, "Failed to enable hardware tapping\n");
1337 if (alps_absolute_mode_v1_v2(psmouse
)) {
1338 psmouse_err(psmouse
, "Failed to enable absolute mode\n");
1342 if ((priv
->flags
& ALPS_PASS
) &&
1343 alps_passthrough_mode_v2(psmouse
, false)) {
1347 /* ALPS needs stream mode, otherwise it won't report any data */
1348 if (ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
)) {
1349 psmouse_err(psmouse
, "Failed to enable stream mode\n");
1356 static int alps_hw_init_v6(struct psmouse
*psmouse
)
1358 unsigned char param
[2] = {0xC8, 0x14};
1360 /* Enter passthrough mode to let trackpoint enter 6byte raw mode */
1361 if (alps_passthrough_mode_v2(psmouse
, true))
1364 if (ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1365 ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1366 ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1367 ps2_command(&psmouse
->ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
) ||
1368 ps2_command(&psmouse
->ps2dev
, ¶m
[1], PSMOUSE_CMD_SETRATE
))
1371 if (alps_passthrough_mode_v2(psmouse
, false))
1374 if (alps_absolute_mode_v6(psmouse
)) {
1375 psmouse_err(psmouse
, "Failed to enable absolute mode\n");
1383 * Enable or disable passthrough mode to the trackstick.
1385 static int alps_passthrough_mode_v3(struct psmouse
*psmouse
,
1386 int reg_base
, bool enable
)
1388 int reg_val
, ret
= -1;
1390 if (alps_enter_command_mode(psmouse
))
1393 reg_val
= alps_command_mode_read_reg(psmouse
, reg_base
+ 0x0008);
1402 ret
= __alps_command_mode_write_reg(psmouse
, reg_val
);
1405 if (alps_exit_command_mode(psmouse
))
1410 /* Must be in command mode when calling this function */
1411 static int alps_absolute_mode_v3(struct psmouse
*psmouse
)
1415 reg_val
= alps_command_mode_read_reg(psmouse
, 0x0004);
1420 if (__alps_command_mode_write_reg(psmouse
, reg_val
))
1426 static int alps_probe_trackstick_v3(struct psmouse
*psmouse
, int reg_base
)
1428 int ret
= -EIO
, reg_val
;
1430 if (alps_enter_command_mode(psmouse
))
1433 reg_val
= alps_command_mode_read_reg(psmouse
, reg_base
+ 0x08);
1437 /* bit 7: trackstick is present */
1438 ret
= reg_val
& 0x80 ? 0 : -ENODEV
;
1441 alps_exit_command_mode(psmouse
);
1445 static int alps_setup_trackstick_v3(struct psmouse
*psmouse
, int reg_base
)
1447 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1449 unsigned char param
[4];
1451 if (alps_passthrough_mode_v3(psmouse
, reg_base
, true))
1455 * E7 report for the trackstick
1457 * There have been reports of failures to seem to trace back
1458 * to the above trackstick check failing. When these occur
1459 * this E7 report fails, so when that happens we continue
1460 * with the assumption that there isn't a trackstick after
1463 if (alps_rpt_cmd(psmouse
, 0, PSMOUSE_CMD_SETSCALE21
, param
)) {
1464 psmouse_warn(psmouse
, "trackstick E7 report failed\n");
1467 psmouse_dbg(psmouse
, "trackstick E7 report: %3ph\n", param
);
1470 * Not sure what this does, but it is absolutely
1471 * essential. Without it, the touchpad does not
1472 * work at all and the trackstick just emits normal
1475 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1476 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1477 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1478 alps_command_mode_send_nibble(psmouse
, 0x9) ||
1479 alps_command_mode_send_nibble(psmouse
, 0x4)) {
1480 psmouse_err(psmouse
,
1481 "Error sending magic E6 sequence\n");
1487 * This ensures the trackstick packets are in the format
1488 * supported by this driver. If bit 1 isn't set the packet
1489 * format is different.
1491 if (alps_enter_command_mode(psmouse
) ||
1492 alps_command_mode_write_reg(psmouse
,
1493 reg_base
+ 0x08, 0x82) ||
1494 alps_exit_command_mode(psmouse
))
1499 if (alps_passthrough_mode_v3(psmouse
, reg_base
, false))
1505 static int alps_hw_init_v3(struct psmouse
*psmouse
)
1507 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1509 unsigned char param
[4];
1511 reg_val
= alps_probe_trackstick_v3(psmouse
, ALPS_REG_BASE_PINNACLE
);
1512 if (reg_val
== -EIO
)
1516 alps_setup_trackstick_v3(psmouse
, ALPS_REG_BASE_PINNACLE
) == -EIO
)
1519 if (alps_enter_command_mode(psmouse
) ||
1520 alps_absolute_mode_v3(psmouse
)) {
1521 psmouse_err(psmouse
, "Failed to enter absolute mode\n");
1525 reg_val
= alps_command_mode_read_reg(psmouse
, 0x0006);
1528 if (__alps_command_mode_write_reg(psmouse
, reg_val
| 0x01))
1531 reg_val
= alps_command_mode_read_reg(psmouse
, 0x0007);
1534 if (__alps_command_mode_write_reg(psmouse
, reg_val
| 0x01))
1537 if (alps_command_mode_read_reg(psmouse
, 0x0144) == -1)
1539 if (__alps_command_mode_write_reg(psmouse
, 0x04))
1542 if (alps_command_mode_read_reg(psmouse
, 0x0159) == -1)
1544 if (__alps_command_mode_write_reg(psmouse
, 0x03))
1547 if (alps_command_mode_read_reg(psmouse
, 0x0163) == -1)
1549 if (alps_command_mode_write_reg(psmouse
, 0x0163, 0x03))
1552 if (alps_command_mode_read_reg(psmouse
, 0x0162) == -1)
1554 if (alps_command_mode_write_reg(psmouse
, 0x0162, 0x04))
1557 alps_exit_command_mode(psmouse
);
1559 /* Set rate and enable data reporting */
1561 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_SETRATE
) ||
1562 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
)) {
1563 psmouse_err(psmouse
, "Failed to enable data reporting\n");
1571 * Leaving the touchpad in command mode will essentially render
1572 * it unusable until the machine reboots, so exit it here just
1575 alps_exit_command_mode(psmouse
);
1579 static int alps_hw_init_rushmore_v3(struct psmouse
*psmouse
)
1581 struct alps_data
*priv
= psmouse
->private;
1582 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1583 int reg_val
, ret
= -1;
1585 if (priv
->flags
& ALPS_DUALPOINT
) {
1586 reg_val
= alps_setup_trackstick_v3(psmouse
,
1587 ALPS_REG_BASE_RUSHMORE
);
1588 if (reg_val
== -EIO
)
1590 if (reg_val
== -ENODEV
)
1591 priv
->flags
&= ~ALPS_DUALPOINT
;
1594 if (alps_enter_command_mode(psmouse
) ||
1595 alps_command_mode_read_reg(psmouse
, 0xc2d9) == -1 ||
1596 alps_command_mode_write_reg(psmouse
, 0xc2cb, 0x00))
1599 reg_val
= alps_command_mode_read_reg(psmouse
, 0xc2c6);
1602 if (__alps_command_mode_write_reg(psmouse
, reg_val
& 0xfd))
1605 if (alps_command_mode_write_reg(psmouse
, 0xc2c9, 0x64))
1608 /* enter absolute mode */
1609 reg_val
= alps_command_mode_read_reg(psmouse
, 0xc2c4);
1612 if (__alps_command_mode_write_reg(psmouse
, reg_val
| 0x02))
1615 alps_exit_command_mode(psmouse
);
1616 return ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
);
1619 alps_exit_command_mode(psmouse
);
1623 /* Must be in command mode when calling this function */
1624 static int alps_absolute_mode_v4(struct psmouse
*psmouse
)
1628 reg_val
= alps_command_mode_read_reg(psmouse
, 0x0004);
1633 if (__alps_command_mode_write_reg(psmouse
, reg_val
))
1639 static int alps_hw_init_v4(struct psmouse
*psmouse
)
1641 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1642 unsigned char param
[4];
1644 if (alps_enter_command_mode(psmouse
))
1647 if (alps_absolute_mode_v4(psmouse
)) {
1648 psmouse_err(psmouse
, "Failed to enter absolute mode\n");
1652 if (alps_command_mode_write_reg(psmouse
, 0x0007, 0x8c))
1655 if (alps_command_mode_write_reg(psmouse
, 0x0149, 0x03))
1658 if (alps_command_mode_write_reg(psmouse
, 0x0160, 0x03))
1661 if (alps_command_mode_write_reg(psmouse
, 0x017f, 0x15))
1664 if (alps_command_mode_write_reg(psmouse
, 0x0151, 0x01))
1667 if (alps_command_mode_write_reg(psmouse
, 0x0168, 0x03))
1670 if (alps_command_mode_write_reg(psmouse
, 0x014a, 0x03))
1673 if (alps_command_mode_write_reg(psmouse
, 0x0161, 0x03))
1676 alps_exit_command_mode(psmouse
);
1679 * This sequence changes the output from a 9-byte to an
1680 * 8-byte format. All the same data seems to be present,
1681 * just in a more compact format.
1686 if (ps2_command(ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
) ||
1687 ps2_command(ps2dev
, ¶m
[1], PSMOUSE_CMD_SETRATE
) ||
1688 ps2_command(ps2dev
, ¶m
[2], PSMOUSE_CMD_SETRATE
) ||
1689 ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETID
))
1692 /* Set rate and enable data reporting */
1694 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_SETRATE
) ||
1695 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
)) {
1696 psmouse_err(psmouse
, "Failed to enable data reporting\n");
1704 * Leaving the touchpad in command mode will essentially render
1705 * it unusable until the machine reboots, so exit it here just
1708 alps_exit_command_mode(psmouse
);
1712 static int alps_hw_init_dolphin_v1(struct psmouse
*psmouse
)
1714 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1715 unsigned char param
[2];
1717 /* This is dolphin "v1" as empirically defined by florin9doi */
1721 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
) ||
1722 ps2_command(ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
) ||
1723 ps2_command(ps2dev
, ¶m
[1], PSMOUSE_CMD_SETRATE
))
1729 static void alps_set_defaults(struct alps_data
*priv
)
1733 priv
->flags
= ALPS_DUALPOINT
;
1740 switch (priv
->proto_version
) {
1743 priv
->hw_init
= alps_hw_init_v1_v2
;
1744 priv
->process_packet
= alps_process_packet_v1_v2
;
1745 priv
->set_abs_params
= alps_set_abs_params_st
;
1750 priv
->hw_init
= alps_hw_init_v3
;
1751 priv
->process_packet
= alps_process_packet_v3
;
1752 priv
->set_abs_params
= alps_set_abs_params_mt
;
1753 priv
->decode_fields
= alps_decode_pinnacle
;
1754 priv
->nibble_commands
= alps_v3_nibble_commands
;
1755 priv
->addr_command
= PSMOUSE_CMD_RESET_WRAP
;
1758 priv
->hw_init
= alps_hw_init_v4
;
1759 priv
->process_packet
= alps_process_packet_v4
;
1760 priv
->set_abs_params
= alps_set_abs_params_mt
;
1761 priv
->nibble_commands
= alps_v4_nibble_commands
;
1762 priv
->addr_command
= PSMOUSE_CMD_DISABLE
;
1765 priv
->hw_init
= alps_hw_init_dolphin_v1
;
1766 priv
->process_packet
= alps_process_packet_v3
;
1767 priv
->decode_fields
= alps_decode_dolphin
;
1768 priv
->set_abs_params
= alps_set_abs_params_mt
;
1769 priv
->nibble_commands
= alps_v3_nibble_commands
;
1770 priv
->addr_command
= PSMOUSE_CMD_RESET_WRAP
;
1780 priv
->hw_init
= alps_hw_init_v6
;
1781 priv
->process_packet
= alps_process_packet_v6
;
1782 priv
->set_abs_params
= alps_set_abs_params_st
;
1783 priv
->nibble_commands
= alps_v6_nibble_commands
;
1790 static int alps_match_table(struct psmouse
*psmouse
, struct alps_data
*priv
,
1791 unsigned char *e7
, unsigned char *ec
)
1793 const struct alps_model_info
*model
;
1796 for (i
= 0; i
< ARRAY_SIZE(alps_model_data
); i
++) {
1797 model
= &alps_model_data
[i
];
1799 if (!memcmp(e7
, model
->signature
, sizeof(model
->signature
)) &&
1800 (!model
->command_mode_resp
||
1801 model
->command_mode_resp
== ec
[2])) {
1803 priv
->proto_version
= model
->proto_version
;
1804 alps_set_defaults(priv
);
1806 priv
->flags
= model
->flags
;
1807 priv
->byte0
= model
->byte0
;
1808 priv
->mask0
= model
->mask0
;
1817 static int alps_identify(struct psmouse
*psmouse
, struct alps_data
*priv
)
1819 unsigned char e6
[4], e7
[4], ec
[4];
1822 * First try "E6 report".
1823 * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed.
1824 * The bits 0-2 of the first byte will be 1s if some buttons are
1827 if (alps_rpt_cmd(psmouse
, PSMOUSE_CMD_SETRES
,
1828 PSMOUSE_CMD_SETSCALE11
, e6
))
1831 if ((e6
[0] & 0xf8) != 0 || e6
[1] != 0 || (e6
[2] != 10 && e6
[2] != 100))
1835 * Now get the "E7" and "EC" reports. These will uniquely identify
1836 * most ALPS touchpads.
1838 if (alps_rpt_cmd(psmouse
, PSMOUSE_CMD_SETRES
,
1839 PSMOUSE_CMD_SETSCALE21
, e7
) ||
1840 alps_rpt_cmd(psmouse
, PSMOUSE_CMD_SETRES
,
1841 PSMOUSE_CMD_RESET_WRAP
, ec
) ||
1842 alps_exit_command_mode(psmouse
))
1845 if (alps_match_table(psmouse
, priv
, e7
, ec
) == 0) {
1847 } else if (e7
[0] == 0x73 && e7
[1] == 0x03 && e7
[2] == 0x50 &&
1848 ec
[0] == 0x73 && ec
[1] == 0x01) {
1849 priv
->proto_version
= ALPS_PROTO_V5
;
1850 alps_set_defaults(priv
);
1853 } else if (ec
[0] == 0x88 && ec
[1] == 0x08) {
1854 priv
->proto_version
= ALPS_PROTO_V3
;
1855 alps_set_defaults(priv
);
1857 priv
->hw_init
= alps_hw_init_rushmore_v3
;
1858 priv
->decode_fields
= alps_decode_rushmore
;
1862 /* hack to make addr_command, nibble_command available */
1863 psmouse
->private = priv
;
1865 if (alps_probe_trackstick_v3(psmouse
, ALPS_REG_BASE_RUSHMORE
))
1866 priv
->flags
&= ~ALPS_DUALPOINT
;
1869 } else if (ec
[0] == 0x88 && ec
[1] == 0x07 &&
1870 ec
[2] >= 0x90 && ec
[2] <= 0x9d) {
1871 priv
->proto_version
= ALPS_PROTO_V3
;
1872 alps_set_defaults(priv
);
1877 psmouse_info(psmouse
,
1878 "Unknown ALPS touchpad: E7=%3ph, EC=%3ph\n", e7
, ec
);
1883 static int alps_reconnect(struct psmouse
*psmouse
)
1885 struct alps_data
*priv
= psmouse
->private;
1887 psmouse_reset(psmouse
);
1889 if (alps_identify(psmouse
, priv
) < 0)
1892 return priv
->hw_init(psmouse
);
1895 static void alps_disconnect(struct psmouse
*psmouse
)
1897 struct alps_data
*priv
= psmouse
->private;
1899 psmouse_reset(psmouse
);
1900 del_timer_sync(&priv
->timer
);
1901 input_unregister_device(priv
->dev2
);
1905 static void alps_set_abs_params_st(struct alps_data
*priv
,
1906 struct input_dev
*dev1
)
1908 input_set_abs_params(dev1
, ABS_X
, 0, priv
->x_max
, 0, 0);
1909 input_set_abs_params(dev1
, ABS_Y
, 0, priv
->y_max
, 0, 0);
1912 static void alps_set_abs_params_mt(struct alps_data
*priv
,
1913 struct input_dev
*dev1
)
1915 set_bit(INPUT_PROP_SEMI_MT
, dev1
->propbit
);
1916 input_mt_init_slots(dev1
, 2, 0);
1917 input_set_abs_params(dev1
, ABS_MT_POSITION_X
, 0, priv
->x_max
, 0, 0);
1918 input_set_abs_params(dev1
, ABS_MT_POSITION_Y
, 0, priv
->y_max
, 0, 0);
1920 set_bit(BTN_TOOL_DOUBLETAP
, dev1
->keybit
);
1921 set_bit(BTN_TOOL_TRIPLETAP
, dev1
->keybit
);
1922 set_bit(BTN_TOOL_QUADTAP
, dev1
->keybit
);
1924 input_set_abs_params(dev1
, ABS_X
, 0, priv
->x_max
, 0, 0);
1925 input_set_abs_params(dev1
, ABS_Y
, 0, priv
->y_max
, 0, 0);
1928 int alps_init(struct psmouse
*psmouse
)
1930 struct alps_data
*priv
;
1931 struct input_dev
*dev1
= psmouse
->dev
, *dev2
;
1933 priv
= kzalloc(sizeof(struct alps_data
), GFP_KERNEL
);
1934 dev2
= input_allocate_device();
1939 setup_timer(&priv
->timer
, alps_flush_packet
, (unsigned long)psmouse
);
1941 psmouse
->private = priv
;
1943 psmouse_reset(psmouse
);
1945 if (alps_identify(psmouse
, priv
) < 0)
1948 if (priv
->hw_init(psmouse
))
1952 * Undo part of setup done for us by psmouse core since touchpad
1953 * is not a relative device.
1955 __clear_bit(EV_REL
, dev1
->evbit
);
1956 __clear_bit(REL_X
, dev1
->relbit
);
1957 __clear_bit(REL_Y
, dev1
->relbit
);
1960 * Now set up our capabilities.
1962 dev1
->evbit
[BIT_WORD(EV_KEY
)] |= BIT_MASK(EV_KEY
);
1963 dev1
->keybit
[BIT_WORD(BTN_TOUCH
)] |= BIT_MASK(BTN_TOUCH
);
1964 dev1
->keybit
[BIT_WORD(BTN_TOOL_FINGER
)] |= BIT_MASK(BTN_TOOL_FINGER
);
1965 dev1
->keybit
[BIT_WORD(BTN_LEFT
)] |=
1966 BIT_MASK(BTN_LEFT
) | BIT_MASK(BTN_RIGHT
);
1968 dev1
->evbit
[BIT_WORD(EV_ABS
)] |= BIT_MASK(EV_ABS
);
1970 priv
->set_abs_params(priv
, dev1
);
1971 input_set_abs_params(dev1
, ABS_PRESSURE
, 0, 127, 0, 0);
1973 if (priv
->flags
& ALPS_WHEEL
) {
1974 dev1
->evbit
[BIT_WORD(EV_REL
)] |= BIT_MASK(EV_REL
);
1975 dev1
->relbit
[BIT_WORD(REL_WHEEL
)] |= BIT_MASK(REL_WHEEL
);
1978 if (priv
->flags
& (ALPS_FW_BK_1
| ALPS_FW_BK_2
)) {
1979 dev1
->keybit
[BIT_WORD(BTN_FORWARD
)] |= BIT_MASK(BTN_FORWARD
);
1980 dev1
->keybit
[BIT_WORD(BTN_BACK
)] |= BIT_MASK(BTN_BACK
);
1983 if (priv
->flags
& ALPS_FOUR_BUTTONS
) {
1984 dev1
->keybit
[BIT_WORD(BTN_0
)] |= BIT_MASK(BTN_0
);
1985 dev1
->keybit
[BIT_WORD(BTN_1
)] |= BIT_MASK(BTN_1
);
1986 dev1
->keybit
[BIT_WORD(BTN_2
)] |= BIT_MASK(BTN_2
);
1987 dev1
->keybit
[BIT_WORD(BTN_3
)] |= BIT_MASK(BTN_3
);
1989 dev1
->keybit
[BIT_WORD(BTN_MIDDLE
)] |= BIT_MASK(BTN_MIDDLE
);
1992 snprintf(priv
->phys
, sizeof(priv
->phys
), "%s/input1", psmouse
->ps2dev
.serio
->phys
);
1993 dev2
->phys
= priv
->phys
;
1994 dev2
->name
= (priv
->flags
& ALPS_DUALPOINT
) ?
1995 "DualPoint Stick" : "ALPS PS/2 Device";
1996 dev2
->id
.bustype
= BUS_I8042
;
1997 dev2
->id
.vendor
= 0x0002;
1998 dev2
->id
.product
= PSMOUSE_ALPS
;
1999 dev2
->id
.version
= 0x0000;
2000 dev2
->dev
.parent
= &psmouse
->ps2dev
.serio
->dev
;
2002 dev2
->evbit
[0] = BIT_MASK(EV_KEY
) | BIT_MASK(EV_REL
);
2003 dev2
->relbit
[BIT_WORD(REL_X
)] = BIT_MASK(REL_X
) | BIT_MASK(REL_Y
);
2004 dev2
->keybit
[BIT_WORD(BTN_LEFT
)] =
2005 BIT_MASK(BTN_LEFT
) | BIT_MASK(BTN_MIDDLE
) | BIT_MASK(BTN_RIGHT
);
2007 if (input_register_device(priv
->dev2
))
2010 psmouse
->protocol_handler
= alps_process_byte
;
2011 psmouse
->poll
= alps_poll
;
2012 psmouse
->disconnect
= alps_disconnect
;
2013 psmouse
->reconnect
= alps_reconnect
;
2014 psmouse
->pktsize
= priv
->proto_version
== ALPS_PROTO_V4
? 8 : 6;
2016 /* We are having trouble resyncing ALPS touchpads so disable it for now */
2017 psmouse
->resync_time
= 0;
2022 psmouse_reset(psmouse
);
2023 input_free_device(dev2
);
2025 psmouse
->private = NULL
;
2029 int alps_detect(struct psmouse
*psmouse
, bool set_properties
)
2031 struct alps_data dummy
;
2033 if (alps_identify(psmouse
, &dummy
) < 0)
2036 if (set_properties
) {
2037 psmouse
->vendor
= "ALPS";
2038 psmouse
->name
= dummy
.flags
& ALPS_DUALPOINT
?
2039 "DualPoint TouchPad" : "GlidePoint";
2040 psmouse
->model
= dummy
.proto_version
<< 8;