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>
23 #include <linux/dmi.h>
29 * Definitions for ALPS version 3 and 4 command mode protocol
31 #define ALPS_CMD_NIBBLE_10 0x01f2
33 #define ALPS_REG_BASE_RUSHMORE 0xc2c0
34 #define ALPS_REG_BASE_V7 0xc2c0
35 #define ALPS_REG_BASE_PINNACLE 0x0000
37 static const struct alps_nibble_commands alps_v3_nibble_commands
[] = {
38 { PSMOUSE_CMD_SETPOLL
, 0x00 }, /* 0 */
39 { PSMOUSE_CMD_RESET_DIS
, 0x00 }, /* 1 */
40 { PSMOUSE_CMD_SETSCALE21
, 0x00 }, /* 2 */
41 { PSMOUSE_CMD_SETRATE
, 0x0a }, /* 3 */
42 { PSMOUSE_CMD_SETRATE
, 0x14 }, /* 4 */
43 { PSMOUSE_CMD_SETRATE
, 0x28 }, /* 5 */
44 { PSMOUSE_CMD_SETRATE
, 0x3c }, /* 6 */
45 { PSMOUSE_CMD_SETRATE
, 0x50 }, /* 7 */
46 { PSMOUSE_CMD_SETRATE
, 0x64 }, /* 8 */
47 { PSMOUSE_CMD_SETRATE
, 0xc8 }, /* 9 */
48 { ALPS_CMD_NIBBLE_10
, 0x00 }, /* a */
49 { PSMOUSE_CMD_SETRES
, 0x00 }, /* b */
50 { PSMOUSE_CMD_SETRES
, 0x01 }, /* c */
51 { PSMOUSE_CMD_SETRES
, 0x02 }, /* d */
52 { PSMOUSE_CMD_SETRES
, 0x03 }, /* e */
53 { PSMOUSE_CMD_SETSCALE11
, 0x00 }, /* f */
56 static const struct alps_nibble_commands alps_v4_nibble_commands
[] = {
57 { PSMOUSE_CMD_ENABLE
, 0x00 }, /* 0 */
58 { PSMOUSE_CMD_RESET_DIS
, 0x00 }, /* 1 */
59 { PSMOUSE_CMD_SETSCALE21
, 0x00 }, /* 2 */
60 { PSMOUSE_CMD_SETRATE
, 0x0a }, /* 3 */
61 { PSMOUSE_CMD_SETRATE
, 0x14 }, /* 4 */
62 { PSMOUSE_CMD_SETRATE
, 0x28 }, /* 5 */
63 { PSMOUSE_CMD_SETRATE
, 0x3c }, /* 6 */
64 { PSMOUSE_CMD_SETRATE
, 0x50 }, /* 7 */
65 { PSMOUSE_CMD_SETRATE
, 0x64 }, /* 8 */
66 { PSMOUSE_CMD_SETRATE
, 0xc8 }, /* 9 */
67 { ALPS_CMD_NIBBLE_10
, 0x00 }, /* a */
68 { PSMOUSE_CMD_SETRES
, 0x00 }, /* b */
69 { PSMOUSE_CMD_SETRES
, 0x01 }, /* c */
70 { PSMOUSE_CMD_SETRES
, 0x02 }, /* d */
71 { PSMOUSE_CMD_SETRES
, 0x03 }, /* e */
72 { PSMOUSE_CMD_SETSCALE11
, 0x00 }, /* f */
75 static const struct alps_nibble_commands alps_v6_nibble_commands
[] = {
76 { PSMOUSE_CMD_ENABLE
, 0x00 }, /* 0 */
77 { PSMOUSE_CMD_SETRATE
, 0x0a }, /* 1 */
78 { PSMOUSE_CMD_SETRATE
, 0x14 }, /* 2 */
79 { PSMOUSE_CMD_SETRATE
, 0x28 }, /* 3 */
80 { PSMOUSE_CMD_SETRATE
, 0x3c }, /* 4 */
81 { PSMOUSE_CMD_SETRATE
, 0x50 }, /* 5 */
82 { PSMOUSE_CMD_SETRATE
, 0x64 }, /* 6 */
83 { PSMOUSE_CMD_SETRATE
, 0xc8 }, /* 7 */
84 { PSMOUSE_CMD_GETID
, 0x00 }, /* 8 */
85 { PSMOUSE_CMD_GETINFO
, 0x00 }, /* 9 */
86 { PSMOUSE_CMD_SETRES
, 0x00 }, /* a */
87 { PSMOUSE_CMD_SETRES
, 0x01 }, /* b */
88 { PSMOUSE_CMD_SETRES
, 0x02 }, /* c */
89 { PSMOUSE_CMD_SETRES
, 0x03 }, /* d */
90 { PSMOUSE_CMD_SETSCALE21
, 0x00 }, /* e */
91 { PSMOUSE_CMD_SETSCALE11
, 0x00 }, /* f */
95 #define ALPS_DUALPOINT 0x02 /* touchpad has trackstick */
96 #define ALPS_PASS 0x04 /* device has a pass-through port */
98 #define ALPS_WHEEL 0x08 /* hardware wheel present */
99 #define ALPS_FW_BK_1 0x10 /* front & back buttons present */
100 #define ALPS_FW_BK_2 0x20 /* front & back buttons present */
101 #define ALPS_FOUR_BUTTONS 0x40 /* 4 direction button present */
102 #define ALPS_PS2_INTERLEAVED 0x80 /* 3-byte PS/2 packet interleaved with
103 6-byte ALPS packet */
104 #define ALPS_STICK_BITS 0x100 /* separate stick button bits */
105 #define ALPS_BUTTONPAD 0x200 /* device is a clickpad */
106 #define ALPS_DUALPOINT_WITH_PRESSURE 0x400 /* device can report trackpoint pressure */
108 static const struct alps_model_info alps_model_data
[] = {
109 { { 0x32, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
} }, /* Toshiba Salellite Pro M10 */
110 { { 0x33, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V1
, 0x88, 0xf8, 0 } }, /* UMAX-530T */
111 { { 0x53, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, 0 } },
112 { { 0x53, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, 0 } },
113 { { 0x60, 0x03, 0xc8 }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, 0 } }, /* HP ze1115 */
114 { { 0x63, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, 0 } },
115 { { 0x63, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, 0 } },
116 { { 0x63, 0x02, 0x28 }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_FW_BK_2
} }, /* Fujitsu Siemens S6010 */
117 { { 0x63, 0x02, 0x3c }, 0x00, { ALPS_PROTO_V2
, 0x8f, 0x8f, ALPS_WHEEL
} }, /* Toshiba Satellite S2400-103 */
118 { { 0x63, 0x02, 0x50 }, 0x00, { ALPS_PROTO_V2
, 0xef, 0xef, ALPS_FW_BK_1
} }, /* NEC Versa L320 */
119 { { 0x63, 0x02, 0x64 }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, 0 } },
120 { { 0x63, 0x03, 0xc8 }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
} }, /* Dell Latitude D800 */
121 { { 0x73, 0x00, 0x0a }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_DUALPOINT
} }, /* ThinkPad R61 8918-5QG */
122 { { 0x73, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, 0 } },
123 { { 0x73, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_FW_BK_2
} }, /* Ahtec Laptop */
126 * XXX This entry is suspicious. First byte has zero lower nibble,
127 * which is what a normal mouse would report. Also, the value 0x0e
128 * isn't valid per PS/2 spec.
130 { { 0x20, 0x02, 0x0e }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
} },
132 { { 0x22, 0x02, 0x0a }, 0x00, { ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
} },
133 { { 0x22, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2
, 0xff, 0xff, ALPS_PASS
| ALPS_DUALPOINT
} }, /* Dell Latitude D600 */
134 /* Dell Latitude E5500, E6400, E6500, Precision M4400 */
135 { { 0x62, 0x02, 0x14 }, 0x00, { ALPS_PROTO_V2
, 0xcf, 0xcf,
136 ALPS_PASS
| ALPS_DUALPOINT
| ALPS_PS2_INTERLEAVED
} },
137 { { 0x73, 0x00, 0x14 }, 0x00, { ALPS_PROTO_V6
, 0xff, 0xff, ALPS_DUALPOINT
} }, /* Dell XT2 */
138 { { 0x73, 0x02, 0x50 }, 0x00, { ALPS_PROTO_V2
, 0xcf, 0xcf, ALPS_FOUR_BUTTONS
} }, /* Dell Vostro 1400 */
139 { { 0x52, 0x01, 0x14 }, 0x00, { ALPS_PROTO_V2
, 0xff, 0xff,
140 ALPS_PASS
| ALPS_DUALPOINT
| ALPS_PS2_INTERLEAVED
} }, /* Toshiba Tecra A11-11L */
141 { { 0x73, 0x02, 0x64 }, 0x8a, { ALPS_PROTO_V4
, 0x8f, 0x8f, 0 } },
144 static const struct alps_protocol_info alps_v3_protocol_data
= {
145 ALPS_PROTO_V3
, 0x8f, 0x8f, ALPS_DUALPOINT
148 static const struct alps_protocol_info alps_v3_rushmore_data
= {
149 ALPS_PROTO_V3_RUSHMORE
, 0x8f, 0x8f, ALPS_DUALPOINT
152 static const struct alps_protocol_info alps_v5_protocol_data
= {
153 ALPS_PROTO_V5
, 0xc8, 0xd8, 0
156 static const struct alps_protocol_info alps_v7_protocol_data
= {
157 ALPS_PROTO_V7
, 0x48, 0x48, ALPS_DUALPOINT
160 static const struct alps_protocol_info alps_v8_protocol_data
= {
161 ALPS_PROTO_V8
, 0x18, 0x18, 0
165 * Some v2 models report the stick buttons in separate bits
167 static const struct dmi_system_id alps_dmi_has_separate_stick_buttons
[] = {
168 #if defined(CONFIG_DMI) && defined(CONFIG_X86)
170 /* Extrapolated from other entries */
172 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
173 DMI_MATCH(DMI_PRODUCT_NAME
, "Latitude D420"),
177 /* Reported-by: Hans de Bruin <jmdebruin@xmsnet.nl> */
179 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
180 DMI_MATCH(DMI_PRODUCT_NAME
, "Latitude D430"),
184 /* Reported-by: Hans de Goede <hdegoede@redhat.com> */
186 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
187 DMI_MATCH(DMI_PRODUCT_NAME
, "Latitude D620"),
191 /* Extrapolated from other entries */
193 DMI_MATCH(DMI_SYS_VENDOR
, "Dell Inc."),
194 DMI_MATCH(DMI_PRODUCT_NAME
, "Latitude D630"),
201 static void alps_set_abs_params_st(struct alps_data
*priv
,
202 struct input_dev
*dev1
);
203 static void alps_set_abs_params_semi_mt(struct alps_data
*priv
,
204 struct input_dev
*dev1
);
205 static void alps_set_abs_params_v7(struct alps_data
*priv
,
206 struct input_dev
*dev1
);
207 static void alps_set_abs_params_ss4_v2(struct alps_data
*priv
,
208 struct input_dev
*dev1
);
210 /* Packet formats are described in Documentation/input/alps.txt */
212 static bool alps_is_valid_first_byte(struct alps_data
*priv
,
215 return (data
& priv
->mask0
) == priv
->byte0
;
218 static void alps_report_buttons(struct input_dev
*dev1
, struct input_dev
*dev2
,
219 int left
, int right
, int middle
)
221 struct input_dev
*dev
;
224 * If shared button has already been reported on the
225 * other device (dev2) then this event should be also
226 * sent through that device.
228 dev
= (dev2
&& test_bit(BTN_LEFT
, dev2
->key
)) ? dev2
: dev1
;
229 input_report_key(dev
, BTN_LEFT
, left
);
231 dev
= (dev2
&& test_bit(BTN_RIGHT
, dev2
->key
)) ? dev2
: dev1
;
232 input_report_key(dev
, BTN_RIGHT
, right
);
234 dev
= (dev2
&& test_bit(BTN_MIDDLE
, dev2
->key
)) ? dev2
: dev1
;
235 input_report_key(dev
, BTN_MIDDLE
, middle
);
238 * Sync the _other_ device now, we'll do the first
239 * device later once we report the rest of the events.
245 static void alps_process_packet_v1_v2(struct psmouse
*psmouse
)
247 struct alps_data
*priv
= psmouse
->private;
248 unsigned char *packet
= psmouse
->packet
;
249 struct input_dev
*dev
= psmouse
->dev
;
250 struct input_dev
*dev2
= priv
->dev2
;
251 int x
, y
, z
, ges
, fin
, left
, right
, middle
;
252 int back
= 0, forward
= 0;
254 if (priv
->proto_version
== ALPS_PROTO_V1
) {
255 left
= packet
[2] & 0x10;
256 right
= packet
[2] & 0x08;
258 x
= packet
[1] | ((packet
[0] & 0x07) << 7);
259 y
= packet
[4] | ((packet
[3] & 0x07) << 7);
262 left
= packet
[3] & 1;
263 right
= packet
[3] & 2;
264 middle
= packet
[3] & 4;
265 x
= packet
[1] | ((packet
[2] & 0x78) << (7 - 3));
266 y
= packet
[4] | ((packet
[3] & 0x70) << (7 - 4));
270 if (priv
->flags
& ALPS_FW_BK_1
) {
271 back
= packet
[0] & 0x10;
272 forward
= packet
[2] & 4;
275 if (priv
->flags
& ALPS_FW_BK_2
) {
276 back
= packet
[3] & 4;
277 forward
= packet
[2] & 4;
278 if ((middle
= forward
&& back
))
285 if ((priv
->flags
& ALPS_DUALPOINT
) && z
== 127) {
286 input_report_rel(dev2
, REL_X
, (x
> 383 ? (x
- 768) : x
));
287 input_report_rel(dev2
, REL_Y
, -(y
> 255 ? (y
- 512) : y
));
289 alps_report_buttons(dev2
, dev
, left
, right
, middle
);
295 /* Some models have separate stick button bits */
296 if (priv
->flags
& ALPS_STICK_BITS
) {
297 left
|= packet
[0] & 1;
298 right
|= packet
[0] & 2;
299 middle
|= packet
[0] & 4;
302 alps_report_buttons(dev
, dev2
, left
, right
, middle
);
304 /* Convert hardware tap to a reasonable Z value */
309 * A "tap and drag" operation is reported by the hardware as a transition
310 * from (!fin && ges) to (fin && ges). This should be translated to the
311 * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually.
313 if (ges
&& fin
&& !priv
->prev_fin
) {
314 input_report_abs(dev
, ABS_X
, x
);
315 input_report_abs(dev
, ABS_Y
, y
);
316 input_report_abs(dev
, ABS_PRESSURE
, 0);
317 input_report_key(dev
, BTN_TOOL_FINGER
, 0);
320 priv
->prev_fin
= fin
;
323 input_report_key(dev
, BTN_TOUCH
, 1);
325 input_report_key(dev
, BTN_TOUCH
, 0);
328 input_report_abs(dev
, ABS_X
, x
);
329 input_report_abs(dev
, ABS_Y
, y
);
332 input_report_abs(dev
, ABS_PRESSURE
, z
);
333 input_report_key(dev
, BTN_TOOL_FINGER
, z
> 0);
335 if (priv
->flags
& ALPS_WHEEL
)
336 input_report_rel(dev
, REL_WHEEL
, ((packet
[2] << 1) & 0x08) - ((packet
[0] >> 4) & 0x07));
338 if (priv
->flags
& (ALPS_FW_BK_1
| ALPS_FW_BK_2
)) {
339 input_report_key(dev
, BTN_FORWARD
, forward
);
340 input_report_key(dev
, BTN_BACK
, back
);
343 if (priv
->flags
& ALPS_FOUR_BUTTONS
) {
344 input_report_key(dev
, BTN_0
, packet
[2] & 4);
345 input_report_key(dev
, BTN_1
, packet
[0] & 0x10);
346 input_report_key(dev
, BTN_2
, packet
[3] & 4);
347 input_report_key(dev
, BTN_3
, packet
[0] & 0x20);
353 static void alps_get_bitmap_points(unsigned int map
,
354 struct alps_bitmap_point
*low
,
355 struct alps_bitmap_point
*high
,
358 struct alps_bitmap_point
*point
;
359 int i
, bit
, prev_bit
= 0;
362 for (i
= 0; map
!= 0; i
++, map
>>= 1) {
366 point
->start_bit
= i
;
380 * Process bitmap data from semi-mt protocols. Returns the number of
381 * fingers detected. A return value of 0 means at least one of the
384 * The bitmaps don't have enough data to track fingers, so this function
385 * only generates points representing a bounding box of all contacts.
386 * These points are returned in fields->mt when the return value
389 static int alps_process_bitmap(struct alps_data
*priv
,
390 struct alps_fields
*fields
)
392 int i
, fingers_x
= 0, fingers_y
= 0, fingers
, closest
;
393 struct alps_bitmap_point x_low
= {0,}, x_high
= {0,};
394 struct alps_bitmap_point y_low
= {0,}, y_high
= {0,};
395 struct input_mt_pos corner
[4];
397 if (!fields
->x_map
|| !fields
->y_map
)
400 alps_get_bitmap_points(fields
->x_map
, &x_low
, &x_high
, &fingers_x
);
401 alps_get_bitmap_points(fields
->y_map
, &y_low
, &y_high
, &fingers_y
);
404 * Fingers can overlap, so we use the maximum count of fingers
405 * on either axis as the finger count.
407 fingers
= max(fingers_x
, fingers_y
);
410 * If an axis reports only a single contact, we have overlapping or
411 * adjacent fingers. Divide the single contact between the two points.
413 if (fingers_x
== 1) {
414 i
= (x_low
.num_bits
- 1) / 2;
415 x_low
.num_bits
= x_low
.num_bits
- i
;
416 x_high
.start_bit
= x_low
.start_bit
+ i
;
417 x_high
.num_bits
= max(i
, 1);
419 if (fingers_y
== 1) {
420 i
= (y_low
.num_bits
- 1) / 2;
421 y_low
.num_bits
= y_low
.num_bits
- i
;
422 y_high
.start_bit
= y_low
.start_bit
+ i
;
423 y_high
.num_bits
= max(i
, 1);
426 /* top-left corner */
428 (priv
->x_max
* (2 * x_low
.start_bit
+ x_low
.num_bits
- 1)) /
429 (2 * (priv
->x_bits
- 1));
431 (priv
->y_max
* (2 * y_low
.start_bit
+ y_low
.num_bits
- 1)) /
432 (2 * (priv
->y_bits
- 1));
434 /* top-right corner */
436 (priv
->x_max
* (2 * x_high
.start_bit
+ x_high
.num_bits
- 1)) /
437 (2 * (priv
->x_bits
- 1));
439 (priv
->y_max
* (2 * y_low
.start_bit
+ y_low
.num_bits
- 1)) /
440 (2 * (priv
->y_bits
- 1));
442 /* bottom-right corner */
444 (priv
->x_max
* (2 * x_high
.start_bit
+ x_high
.num_bits
- 1)) /
445 (2 * (priv
->x_bits
- 1));
447 (priv
->y_max
* (2 * y_high
.start_bit
+ y_high
.num_bits
- 1)) /
448 (2 * (priv
->y_bits
- 1));
450 /* bottom-left corner */
452 (priv
->x_max
* (2 * x_low
.start_bit
+ x_low
.num_bits
- 1)) /
453 (2 * (priv
->x_bits
- 1));
455 (priv
->y_max
* (2 * y_high
.start_bit
+ y_high
.num_bits
- 1)) /
456 (2 * (priv
->y_bits
- 1));
458 /* x-bitmap order is reversed on v5 touchpads */
459 if (priv
->proto_version
== ALPS_PROTO_V5
) {
460 for (i
= 0; i
< 4; i
++)
461 corner
[i
].x
= priv
->x_max
- corner
[i
].x
;
464 /* y-bitmap order is reversed on v3 and v4 touchpads */
465 if (priv
->proto_version
== ALPS_PROTO_V3
||
466 priv
->proto_version
== ALPS_PROTO_V4
) {
467 for (i
= 0; i
< 4; i
++)
468 corner
[i
].y
= priv
->y_max
- corner
[i
].y
;
472 * We only select a corner for the second touch once per 2 finger
473 * touch sequence to avoid the chosen corner (and thus the coordinates)
474 * jumping around when the first touch is in the middle.
476 if (priv
->second_touch
== -1) {
477 /* Find corner closest to our st coordinates */
478 closest
= 0x7fffffff;
479 for (i
= 0; i
< 4; i
++) {
480 int dx
= fields
->st
.x
- corner
[i
].x
;
481 int dy
= fields
->st
.y
- corner
[i
].y
;
482 int distance
= dx
* dx
+ dy
* dy
;
484 if (distance
< closest
) {
485 priv
->second_touch
= i
;
489 /* And select the opposite corner to use for the 2nd touch */
490 priv
->second_touch
= (priv
->second_touch
+ 2) % 4;
493 fields
->mt
[0] = fields
->st
;
494 fields
->mt
[1] = corner
[priv
->second_touch
];
499 static void alps_set_slot(struct input_dev
*dev
, int slot
, int x
, int y
)
501 input_mt_slot(dev
, slot
);
502 input_mt_report_slot_state(dev
, MT_TOOL_FINGER
, true);
503 input_report_abs(dev
, ABS_MT_POSITION_X
, x
);
504 input_report_abs(dev
, ABS_MT_POSITION_Y
, y
);
507 static void alps_report_mt_data(struct psmouse
*psmouse
, int n
)
509 struct alps_data
*priv
= psmouse
->private;
510 struct input_dev
*dev
= psmouse
->dev
;
511 struct alps_fields
*f
= &priv
->f
;
512 int i
, slot
[MAX_TOUCHES
];
514 input_mt_assign_slots(dev
, slot
, f
->mt
, n
, 0);
515 for (i
= 0; i
< n
; i
++)
516 alps_set_slot(dev
, slot
[i
], f
->mt
[i
].x
, f
->mt
[i
].y
);
518 input_mt_sync_frame(dev
);
521 static void alps_report_semi_mt_data(struct psmouse
*psmouse
, int fingers
)
523 struct alps_data
*priv
= psmouse
->private;
524 struct input_dev
*dev
= psmouse
->dev
;
525 struct alps_fields
*f
= &priv
->f
;
527 /* Use st data when we don't have mt data */
529 f
->mt
[0].x
= f
->st
.x
;
530 f
->mt
[0].y
= f
->st
.y
;
531 fingers
= f
->pressure
> 0 ? 1 : 0;
532 priv
->second_touch
= -1;
536 alps_set_slot(dev
, 0, f
->mt
[0].x
, f
->mt
[0].y
);
538 alps_set_slot(dev
, 1, f
->mt
[1].x
, f
->mt
[1].y
);
539 input_mt_sync_frame(dev
);
541 input_mt_report_finger_count(dev
, fingers
);
543 input_report_key(dev
, BTN_LEFT
, f
->left
);
544 input_report_key(dev
, BTN_RIGHT
, f
->right
);
545 input_report_key(dev
, BTN_MIDDLE
, f
->middle
);
547 input_report_abs(dev
, ABS_PRESSURE
, f
->pressure
);
552 static void alps_process_trackstick_packet_v3(struct psmouse
*psmouse
)
554 struct alps_data
*priv
= psmouse
->private;
555 unsigned char *packet
= psmouse
->packet
;
556 struct input_dev
*dev
= priv
->dev2
;
557 int x
, y
, z
, left
, right
, middle
;
559 /* It should be a DualPoint when received trackstick packet */
560 if (!(priv
->flags
& ALPS_DUALPOINT
)) {
561 psmouse_warn(psmouse
,
562 "Rejected trackstick packet from non DualPoint device");
566 /* Sanity check packet */
567 if (!(packet
[0] & 0x40)) {
568 psmouse_dbg(psmouse
, "Bad trackstick packet, discarding\n");
573 * There's a special packet that seems to indicate the end
574 * of a stream of trackstick data. Filter these out.
576 if (packet
[1] == 0x7f && packet
[2] == 0x7f && packet
[4] == 0x7f)
579 x
= (s8
)(((packet
[0] & 0x20) << 2) | (packet
[1] & 0x7f));
580 y
= (s8
)(((packet
[0] & 0x10) << 3) | (packet
[2] & 0x7f));
581 z
= (packet
[4] & 0x7c) >> 2;
584 * The x and y values tend to be quite large, and when used
585 * alone the trackstick is difficult to use. Scale them down
591 input_report_rel(dev
, REL_X
, x
);
592 input_report_rel(dev
, REL_Y
, -y
);
595 * Most ALPS models report the trackstick buttons in the touchpad
596 * packets, but a few report them here. No reliable way has been
597 * found to differentiate between the models upfront, so we enable
598 * the quirk in response to seeing a button press in the trackstick
601 left
= packet
[3] & 0x01;
602 right
= packet
[3] & 0x02;
603 middle
= packet
[3] & 0x04;
605 if (!(priv
->quirks
& ALPS_QUIRK_TRACKSTICK_BUTTONS
) &&
606 (left
|| right
|| middle
))
607 priv
->quirks
|= ALPS_QUIRK_TRACKSTICK_BUTTONS
;
609 if (priv
->quirks
& ALPS_QUIRK_TRACKSTICK_BUTTONS
) {
610 input_report_key(dev
, BTN_LEFT
, left
);
611 input_report_key(dev
, BTN_RIGHT
, right
);
612 input_report_key(dev
, BTN_MIDDLE
, middle
);
619 static void alps_decode_buttons_v3(struct alps_fields
*f
, unsigned char *p
)
621 f
->left
= !!(p
[3] & 0x01);
622 f
->right
= !!(p
[3] & 0x02);
623 f
->middle
= !!(p
[3] & 0x04);
625 f
->ts_left
= !!(p
[3] & 0x10);
626 f
->ts_right
= !!(p
[3] & 0x20);
627 f
->ts_middle
= !!(p
[3] & 0x40);
630 static int alps_decode_pinnacle(struct alps_fields
*f
, unsigned char *p
,
631 struct psmouse
*psmouse
)
633 f
->first_mp
= !!(p
[4] & 0x40);
634 f
->is_mp
= !!(p
[0] & 0x40);
637 f
->fingers
= (p
[5] & 0x3) + 1;
638 f
->x_map
= ((p
[4] & 0x7e) << 8) |
639 ((p
[1] & 0x7f) << 2) |
640 ((p
[0] & 0x30) >> 4);
641 f
->y_map
= ((p
[3] & 0x70) << 4) |
642 ((p
[2] & 0x7f) << 1) |
645 f
->st
.x
= ((p
[1] & 0x7f) << 4) | ((p
[4] & 0x30) >> 2) |
646 ((p
[0] & 0x30) >> 4);
647 f
->st
.y
= ((p
[2] & 0x7f) << 4) | (p
[4] & 0x0f);
648 f
->pressure
= p
[5] & 0x7f;
650 alps_decode_buttons_v3(f
, p
);
656 static int alps_decode_rushmore(struct alps_fields
*f
, unsigned char *p
,
657 struct psmouse
*psmouse
)
659 f
->first_mp
= !!(p
[4] & 0x40);
660 f
->is_mp
= !!(p
[5] & 0x40);
663 f
->fingers
= max((p
[5] & 0x3), ((p
[5] >> 2) & 0x3)) + 1;
664 f
->x_map
= ((p
[5] & 0x10) << 11) |
665 ((p
[4] & 0x7e) << 8) |
666 ((p
[1] & 0x7f) << 2) |
667 ((p
[0] & 0x30) >> 4);
668 f
->y_map
= ((p
[5] & 0x20) << 6) |
669 ((p
[3] & 0x70) << 4) |
670 ((p
[2] & 0x7f) << 1) |
673 f
->st
.x
= ((p
[1] & 0x7f) << 4) | ((p
[4] & 0x30) >> 2) |
674 ((p
[0] & 0x30) >> 4);
675 f
->st
.y
= ((p
[2] & 0x7f) << 4) | (p
[4] & 0x0f);
676 f
->pressure
= p
[5] & 0x7f;
678 alps_decode_buttons_v3(f
, p
);
684 static int alps_decode_dolphin(struct alps_fields
*f
, unsigned char *p
,
685 struct psmouse
*psmouse
)
688 struct alps_data
*priv
= psmouse
->private;
690 f
->first_mp
= !!(p
[0] & 0x02);
691 f
->is_mp
= !!(p
[0] & 0x20);
694 f
->st
.x
= ((p
[1] & 0x7f) | ((p
[4] & 0x0f) << 7));
695 f
->st
.y
= ((p
[2] & 0x7f) | ((p
[4] & 0xf0) << 3));
696 f
->pressure
= (p
[0] & 4) ? 0 : p
[5] & 0x7f;
697 alps_decode_buttons_v3(f
, p
);
699 f
->fingers
= ((p
[0] & 0x6) >> 1 |
702 palm_data
= (p
[1] & 0x7f) |
703 ((p
[2] & 0x7f) << 7) |
704 ((p
[4] & 0x7f) << 14) |
705 ((p
[5] & 0x7f) << 21) |
706 ((p
[3] & 0x07) << 28) |
707 (((u64
)p
[3] & 0x70) << 27) |
708 (((u64
)p
[0] & 0x01) << 34);
710 /* Y-profile is stored in P(0) to p(n-1), n = y_bits; */
711 f
->y_map
= palm_data
& (BIT(priv
->y_bits
) - 1);
713 /* X-profile is stored in p(n) to p(n+m-1), m = x_bits; */
714 f
->x_map
= (palm_data
>> priv
->y_bits
) &
715 (BIT(priv
->x_bits
) - 1);
721 static void alps_process_touchpad_packet_v3_v5(struct psmouse
*psmouse
)
723 struct alps_data
*priv
= psmouse
->private;
724 unsigned char *packet
= psmouse
->packet
;
725 struct input_dev
*dev2
= priv
->dev2
;
726 struct alps_fields
*f
= &priv
->f
;
729 memset(f
, 0, sizeof(*f
));
731 priv
->decode_fields(f
, packet
, psmouse
);
734 * There's no single feature of touchpad position and bitmap packets
735 * that can be used to distinguish between them. We rely on the fact
736 * that a bitmap packet should always follow a position packet with
737 * bit 6 of packet[4] set.
739 if (priv
->multi_packet
) {
741 * Sometimes a position packet will indicate a multi-packet
742 * sequence, but then what follows is another position
743 * packet. Check for this, and when it happens process the
744 * position packet as usual.
747 fingers
= f
->fingers
;
749 * Bitmap processing uses position packet's coordinate
750 * data, so we need to do decode it first.
752 priv
->decode_fields(f
, priv
->multi_data
, psmouse
);
753 if (alps_process_bitmap(priv
, f
) == 0)
754 fingers
= 0; /* Use st data */
756 priv
->multi_packet
= 0;
761 * Bit 6 of byte 0 is not usually set in position packets. The only
762 * times it seems to be set is in situations where the data is
763 * suspect anyway, e.g. a palm resting flat on the touchpad. Given
764 * this combined with the fact that this bit is useful for filtering
765 * out misidentified bitmap packets, we reject anything with this
771 if (!priv
->multi_packet
&& f
->first_mp
) {
772 priv
->multi_packet
= 1;
773 memcpy(priv
->multi_data
, packet
, sizeof(priv
->multi_data
));
777 priv
->multi_packet
= 0;
780 * Sometimes the hardware sends a single packet with z = 0
781 * in the middle of a stream. Real releases generate packets
782 * with x, y, and z all zero, so these seem to be flukes.
785 if (f
->st
.x
&& f
->st
.y
&& !f
->pressure
)
788 alps_report_semi_mt_data(psmouse
, fingers
);
790 if ((priv
->flags
& ALPS_DUALPOINT
) &&
791 !(priv
->quirks
& ALPS_QUIRK_TRACKSTICK_BUTTONS
)) {
792 input_report_key(dev2
, BTN_LEFT
, f
->ts_left
);
793 input_report_key(dev2
, BTN_RIGHT
, f
->ts_right
);
794 input_report_key(dev2
, BTN_MIDDLE
, f
->ts_middle
);
799 static void alps_process_packet_v3(struct psmouse
*psmouse
)
801 unsigned char *packet
= psmouse
->packet
;
804 * v3 protocol packets come in three types, two representing
805 * touchpad data and one representing trackstick data.
806 * Trackstick packets seem to be distinguished by always
807 * having 0x3f in the last byte. This value has never been
808 * observed in the last byte of either of the other types
811 if (packet
[5] == 0x3f) {
812 alps_process_trackstick_packet_v3(psmouse
);
816 alps_process_touchpad_packet_v3_v5(psmouse
);
819 static void alps_process_packet_v6(struct psmouse
*psmouse
)
821 struct alps_data
*priv
= psmouse
->private;
822 unsigned char *packet
= psmouse
->packet
;
823 struct input_dev
*dev
= psmouse
->dev
;
824 struct input_dev
*dev2
= priv
->dev2
;
825 int x
, y
, z
, left
, right
, middle
;
828 * We can use Byte5 to distinguish if the packet is from Touchpad
833 if (packet
[5] == 0x7F) {
834 /* It should be a DualPoint when received Trackpoint packet */
835 if (!(priv
->flags
& ALPS_DUALPOINT
)) {
836 psmouse_warn(psmouse
,
837 "Rejected trackstick packet from non DualPoint device");
841 /* Trackpoint packet */
842 x
= packet
[1] | ((packet
[3] & 0x20) << 2);
843 y
= packet
[2] | ((packet
[3] & 0x40) << 1);
845 left
= packet
[3] & 0x01;
846 right
= packet
[3] & 0x02;
847 middle
= packet
[3] & 0x04;
849 /* To prevent the cursor jump when finger lifted */
850 if (x
== 0x7F && y
== 0x7F && z
== 0x7F)
853 /* Divide 4 since trackpoint's speed is too fast */
854 input_report_rel(dev2
, REL_X
, (char)x
/ 4);
855 input_report_rel(dev2
, REL_Y
, -((char)y
/ 4));
857 input_report_key(dev2
, BTN_LEFT
, left
);
858 input_report_key(dev2
, BTN_RIGHT
, right
);
859 input_report_key(dev2
, BTN_MIDDLE
, middle
);
865 /* Touchpad packet */
866 x
= packet
[1] | ((packet
[3] & 0x78) << 4);
867 y
= packet
[2] | ((packet
[4] & 0x78) << 4);
869 left
= packet
[3] & 0x01;
870 right
= packet
[3] & 0x02;
873 input_report_key(dev
, BTN_TOUCH
, 1);
875 input_report_key(dev
, BTN_TOUCH
, 0);
878 input_report_abs(dev
, ABS_X
, x
);
879 input_report_abs(dev
, ABS_Y
, y
);
882 input_report_abs(dev
, ABS_PRESSURE
, z
);
883 input_report_key(dev
, BTN_TOOL_FINGER
, z
> 0);
885 /* v6 touchpad does not have middle button */
886 input_report_key(dev
, BTN_LEFT
, left
);
887 input_report_key(dev
, BTN_RIGHT
, right
);
892 static void alps_process_packet_v4(struct psmouse
*psmouse
)
894 struct alps_data
*priv
= psmouse
->private;
895 unsigned char *packet
= psmouse
->packet
;
896 struct alps_fields
*f
= &priv
->f
;
900 * v4 has a 6-byte encoding for bitmap data, but this data is
901 * broken up between 3 normal packets. Use priv->multi_packet to
902 * track our position in the bitmap packet.
904 if (packet
[6] & 0x40) {
905 /* sync, reset position */
906 priv
->multi_packet
= 0;
909 if (WARN_ON_ONCE(priv
->multi_packet
> 2))
912 offset
= 2 * priv
->multi_packet
;
913 priv
->multi_data
[offset
] = packet
[6];
914 priv
->multi_data
[offset
+ 1] = packet
[7];
916 f
->left
= !!(packet
[4] & 0x01);
917 f
->right
= !!(packet
[4] & 0x02);
919 f
->st
.x
= ((packet
[1] & 0x7f) << 4) | ((packet
[3] & 0x30) >> 2) |
920 ((packet
[0] & 0x30) >> 4);
921 f
->st
.y
= ((packet
[2] & 0x7f) << 4) | (packet
[3] & 0x0f);
922 f
->pressure
= packet
[5] & 0x7f;
924 if (++priv
->multi_packet
> 2) {
925 priv
->multi_packet
= 0;
927 f
->x_map
= ((priv
->multi_data
[2] & 0x1f) << 10) |
928 ((priv
->multi_data
[3] & 0x60) << 3) |
929 ((priv
->multi_data
[0] & 0x3f) << 2) |
930 ((priv
->multi_data
[1] & 0x60) >> 5);
931 f
->y_map
= ((priv
->multi_data
[5] & 0x01) << 10) |
932 ((priv
->multi_data
[3] & 0x1f) << 5) |
933 (priv
->multi_data
[1] & 0x1f);
935 f
->fingers
= alps_process_bitmap(priv
, f
);
938 alps_report_semi_mt_data(psmouse
, f
->fingers
);
941 static bool alps_is_valid_package_v7(struct psmouse
*psmouse
)
943 switch (psmouse
->pktcnt
) {
945 return (psmouse
->packet
[2] & 0x40) == 0x40;
947 return (psmouse
->packet
[3] & 0x48) == 0x48;
949 return (psmouse
->packet
[5] & 0x40) == 0x00;
954 static unsigned char alps_get_packet_id_v7(char *byte
)
956 unsigned char packet_id
;
959 packet_id
= V7_PACKET_ID_TWO
;
960 else if (byte
[4] & 0x01)
961 packet_id
= V7_PACKET_ID_MULTI
;
962 else if ((byte
[0] & 0x10) && !(byte
[4] & 0x43))
963 packet_id
= V7_PACKET_ID_NEW
;
964 else if (byte
[1] == 0x00 && byte
[4] == 0x00)
965 packet_id
= V7_PACKET_ID_IDLE
;
967 packet_id
= V7_PACKET_ID_UNKNOWN
;
972 static void alps_get_finger_coordinate_v7(struct input_mt_pos
*mt
,
974 unsigned char pkt_id
)
976 mt
[0].x
= ((pkt
[2] & 0x80) << 4);
977 mt
[0].x
|= ((pkt
[2] & 0x3F) << 5);
978 mt
[0].x
|= ((pkt
[3] & 0x30) >> 1);
979 mt
[0].x
|= (pkt
[3] & 0x07);
980 mt
[0].y
= (pkt
[1] << 3) | (pkt
[0] & 0x07);
982 mt
[1].x
= ((pkt
[3] & 0x80) << 4);
983 mt
[1].x
|= ((pkt
[4] & 0x80) << 3);
984 mt
[1].x
|= ((pkt
[4] & 0x3F) << 4);
985 mt
[1].y
= ((pkt
[5] & 0x80) << 3);
986 mt
[1].y
|= ((pkt
[5] & 0x3F) << 4);
989 case V7_PACKET_ID_TWO
:
992 /* Detect false-postive touches where x & y report max value */
993 if (mt
[1].y
== 0x7ff && mt
[1].x
== 0xff0) {
995 /* y gets set to 0 at the end of this function */
999 case V7_PACKET_ID_MULTI
:
1002 mt
[1].y
|= ((pkt
[4] & 0x02) << 4);
1006 case V7_PACKET_ID_NEW
:
1008 mt
[1].x
|= (pkt
[0] & 0x20);
1013 mt
[0].y
= 0x7FF - mt
[0].y
;
1014 mt
[1].y
= 0x7FF - mt
[1].y
;
1017 static int alps_get_mt_count(struct input_mt_pos
*mt
)
1021 for (i
= 0; i
< MAX_TOUCHES
; i
++) {
1022 if (mt
[i
].x
!= 0 || mt
[i
].y
!= 0)
1029 static int alps_decode_packet_v7(struct alps_fields
*f
,
1031 struct psmouse
*psmouse
)
1033 struct alps_data
*priv
= psmouse
->private;
1034 unsigned char pkt_id
;
1036 pkt_id
= alps_get_packet_id_v7(p
);
1037 if (pkt_id
== V7_PACKET_ID_IDLE
)
1039 if (pkt_id
== V7_PACKET_ID_UNKNOWN
)
1042 * NEW packets are send to indicate a discontinuity in the finger
1043 * coordinate reporting. Specifically a finger may have moved from
1044 * slot 0 to 1 or vice versa. INPUT_MT_TRACK takes care of this for
1047 * NEW packets have 3 problems:
1048 * 1) They do not contain middle / right button info (on non clickpads)
1049 * this can be worked around by preserving the old button state
1050 * 2) They do not contain an accurate fingercount, and they are
1051 * typically send when the number of fingers changes. We cannot use
1052 * the old finger count as that may mismatch with the amount of
1053 * touch coordinates we've available in the NEW packet
1054 * 3) Their x data for the second touch is inaccurate leading to
1055 * a possible jump of the x coordinate by 16 units when the first
1056 * non NEW packet comes in
1057 * Since problems 2 & 3 cannot be worked around, just ignore them.
1059 if (pkt_id
== V7_PACKET_ID_NEW
)
1062 alps_get_finger_coordinate_v7(f
->mt
, p
, pkt_id
);
1064 if (pkt_id
== V7_PACKET_ID_TWO
)
1065 f
->fingers
= alps_get_mt_count(f
->mt
);
1066 else /* pkt_id == V7_PACKET_ID_MULTI */
1067 f
->fingers
= 3 + (p
[5] & 0x03);
1069 f
->left
= (p
[0] & 0x80) >> 7;
1070 if (priv
->flags
& ALPS_BUTTONPAD
) {
1076 f
->right
= (p
[0] & 0x20) >> 5;
1077 f
->middle
= (p
[0] & 0x10) >> 4;
1080 /* Sometimes a single touch is reported in mt[1] rather then mt[0] */
1081 if (f
->fingers
== 1 && f
->mt
[0].x
== 0 && f
->mt
[0].y
== 0) {
1082 f
->mt
[0].x
= f
->mt
[1].x
;
1083 f
->mt
[0].y
= f
->mt
[1].y
;
1091 static void alps_process_trackstick_packet_v7(struct psmouse
*psmouse
)
1093 struct alps_data
*priv
= psmouse
->private;
1094 unsigned char *packet
= psmouse
->packet
;
1095 struct input_dev
*dev2
= priv
->dev2
;
1096 int x
, y
, z
, left
, right
, middle
;
1098 /* It should be a DualPoint when received trackstick packet */
1099 if (!(priv
->flags
& ALPS_DUALPOINT
)) {
1100 psmouse_warn(psmouse
,
1101 "Rejected trackstick packet from non DualPoint device");
1105 x
= ((packet
[2] & 0xbf)) | ((packet
[3] & 0x10) << 2);
1106 y
= (packet
[3] & 0x07) | (packet
[4] & 0xb8) |
1107 ((packet
[3] & 0x20) << 1);
1108 z
= (packet
[5] & 0x3f) | ((packet
[3] & 0x80) >> 1);
1110 left
= (packet
[1] & 0x01);
1111 right
= (packet
[1] & 0x02) >> 1;
1112 middle
= (packet
[1] & 0x04) >> 2;
1114 input_report_rel(dev2
, REL_X
, (char)x
);
1115 input_report_rel(dev2
, REL_Y
, -((char)y
));
1117 input_report_key(dev2
, BTN_LEFT
, left
);
1118 input_report_key(dev2
, BTN_RIGHT
, right
);
1119 input_report_key(dev2
, BTN_MIDDLE
, middle
);
1124 static void alps_process_touchpad_packet_v7(struct psmouse
*psmouse
)
1126 struct alps_data
*priv
= psmouse
->private;
1127 struct input_dev
*dev
= psmouse
->dev
;
1128 struct alps_fields
*f
= &priv
->f
;
1130 memset(f
, 0, sizeof(*f
));
1132 if (priv
->decode_fields(f
, psmouse
->packet
, psmouse
))
1135 alps_report_mt_data(psmouse
, alps_get_mt_count(f
->mt
));
1137 input_mt_report_finger_count(dev
, f
->fingers
);
1139 input_report_key(dev
, BTN_LEFT
, f
->left
);
1140 input_report_key(dev
, BTN_RIGHT
, f
->right
);
1141 input_report_key(dev
, BTN_MIDDLE
, f
->middle
);
1146 static void alps_process_packet_v7(struct psmouse
*psmouse
)
1148 unsigned char *packet
= psmouse
->packet
;
1150 if (packet
[0] == 0x48 && (packet
[4] & 0x47) == 0x06)
1151 alps_process_trackstick_packet_v7(psmouse
);
1153 alps_process_touchpad_packet_v7(psmouse
);
1156 static enum SS4_PACKET_ID
alps_get_pkt_id_ss4_v2(unsigned char *byte
)
1158 enum SS4_PACKET_ID pkt_id
= SS4_PACKET_ID_IDLE
;
1160 switch (byte
[3] & 0x30) {
1162 if (SS4_IS_IDLE_V2(byte
)) {
1163 pkt_id
= SS4_PACKET_ID_IDLE
;
1165 pkt_id
= SS4_PACKET_ID_ONE
;
1169 /* two-finger finger positions */
1170 pkt_id
= SS4_PACKET_ID_TWO
;
1174 pkt_id
= SS4_PACKET_ID_STICK
;
1177 /* third and fourth finger positions */
1178 pkt_id
= SS4_PACKET_ID_MULTI
;
1185 static int alps_decode_ss4_v2(struct alps_fields
*f
,
1186 unsigned char *p
, struct psmouse
*psmouse
)
1188 struct alps_data
*priv
= psmouse
->private;
1189 enum SS4_PACKET_ID pkt_id
;
1190 unsigned int no_data_x
, no_data_y
;
1192 pkt_id
= alps_get_pkt_id_ss4_v2(p
);
1194 /* Current packet is 1Finger coordinate packet */
1196 case SS4_PACKET_ID_ONE
:
1197 f
->mt
[0].x
= SS4_1F_X_V2(p
);
1198 f
->mt
[0].y
= SS4_1F_Y_V2(p
);
1199 f
->pressure
= ((SS4_1F_Z_V2(p
)) * 2) & 0x7f;
1201 * When a button is held the device will give us events
1202 * with x, y, and pressure of 0. This causes annoying jumps
1203 * if a touch is released while the button is held.
1204 * Handle this by claiming zero contacts.
1206 f
->fingers
= f
->pressure
> 0 ? 1 : 0;
1211 case SS4_PACKET_ID_TWO
:
1212 if (priv
->flags
& ALPS_BUTTONPAD
) {
1213 f
->mt
[0].x
= SS4_BTL_MF_X_V2(p
, 0);
1214 f
->mt
[0].y
= SS4_BTL_MF_Y_V2(p
, 0);
1215 f
->mt
[1].x
= SS4_BTL_MF_X_V2(p
, 1);
1216 f
->mt
[1].y
= SS4_BTL_MF_Y_V2(p
, 1);
1218 f
->mt
[0].x
= SS4_STD_MF_X_V2(p
, 0);
1219 f
->mt
[0].y
= SS4_STD_MF_Y_V2(p
, 0);
1220 f
->mt
[1].x
= SS4_STD_MF_X_V2(p
, 1);
1221 f
->mt
[1].y
= SS4_STD_MF_Y_V2(p
, 1);
1223 f
->pressure
= SS4_MF_Z_V2(p
, 0) ? 0x30 : 0;
1225 if (SS4_IS_MF_CONTINUE(p
)) {
1235 case SS4_PACKET_ID_MULTI
:
1236 if (priv
->flags
& ALPS_BUTTONPAD
) {
1237 f
->mt
[2].x
= SS4_BTL_MF_X_V2(p
, 0);
1238 f
->mt
[2].y
= SS4_BTL_MF_Y_V2(p
, 0);
1239 f
->mt
[3].x
= SS4_BTL_MF_X_V2(p
, 1);
1240 f
->mt
[3].y
= SS4_BTL_MF_Y_V2(p
, 1);
1241 no_data_x
= SS4_MFPACKET_NO_AX_BL
;
1242 no_data_y
= SS4_MFPACKET_NO_AY_BL
;
1244 f
->mt
[2].x
= SS4_STD_MF_X_V2(p
, 0);
1245 f
->mt
[2].y
= SS4_STD_MF_Y_V2(p
, 0);
1246 f
->mt
[3].x
= SS4_STD_MF_X_V2(p
, 1);
1247 f
->mt
[3].y
= SS4_STD_MF_Y_V2(p
, 1);
1248 no_data_x
= SS4_MFPACKET_NO_AX
;
1249 no_data_y
= SS4_MFPACKET_NO_AY
;
1255 if (SS4_IS_5F_DETECTED(p
)) {
1257 } else if (f
->mt
[3].x
== no_data_x
&&
1258 f
->mt
[3].y
== no_data_y
) {
1267 case SS4_PACKET_ID_STICK
:
1269 * x, y, and pressure are decoded in
1270 * alps_process_packet_ss4_v2()
1276 case SS4_PACKET_ID_IDLE
:
1278 memset(f
, 0, sizeof(struct alps_fields
));
1282 /* handle buttons */
1283 if (pkt_id
== SS4_PACKET_ID_STICK
) {
1284 f
->ts_left
= !!(SS4_BTN_V2(p
) & 0x01);
1285 if (!(priv
->flags
& ALPS_BUTTONPAD
)) {
1286 f
->ts_right
= !!(SS4_BTN_V2(p
) & 0x02);
1287 f
->ts_middle
= !!(SS4_BTN_V2(p
) & 0x04);
1290 f
->left
= !!(SS4_BTN_V2(p
) & 0x01);
1291 if (!(priv
->flags
& ALPS_BUTTONPAD
)) {
1292 f
->right
= !!(SS4_BTN_V2(p
) & 0x02);
1293 f
->middle
= !!(SS4_BTN_V2(p
) & 0x04);
1300 static void alps_process_packet_ss4_v2(struct psmouse
*psmouse
)
1302 struct alps_data
*priv
= psmouse
->private;
1303 unsigned char *packet
= psmouse
->packet
;
1304 struct input_dev
*dev
= psmouse
->dev
;
1305 struct input_dev
*dev2
= priv
->dev2
;
1306 struct alps_fields
*f
= &priv
->f
;
1308 memset(f
, 0, sizeof(struct alps_fields
));
1309 priv
->decode_fields(f
, packet
, psmouse
);
1310 if (priv
->multi_packet
) {
1312 * Sometimes the first packet will indicate a multi-packet
1313 * sequence, but sometimes the next multi-packet would not
1314 * come. Check for this, and when it happens process the
1315 * position packet as usual.
1318 /* Now process the 1st packet */
1319 priv
->decode_fields(f
, priv
->multi_data
, psmouse
);
1321 priv
->multi_packet
= 0;
1326 * "f.is_mp" would always be '0' after merging the 1st and 2nd packet.
1327 * When it is set, it means 2nd packet comes without 1st packet come.
1332 /* Save the first packet */
1333 if (!priv
->multi_packet
&& f
->first_mp
) {
1334 priv
->multi_packet
= 1;
1335 memcpy(priv
->multi_data
, packet
, sizeof(priv
->multi_data
));
1339 priv
->multi_packet
= 0;
1341 /* Report trackstick */
1342 if (alps_get_pkt_id_ss4_v2(packet
) == SS4_PACKET_ID_STICK
) {
1343 if (!(priv
->flags
& ALPS_DUALPOINT
)) {
1344 psmouse_warn(psmouse
,
1345 "Rejected trackstick packet from non DualPoint device");
1349 input_report_rel(dev2
, REL_X
, SS4_TS_X_V2(packet
));
1350 input_report_rel(dev2
, REL_Y
, SS4_TS_Y_V2(packet
));
1351 input_report_abs(dev2
, ABS_PRESSURE
, SS4_TS_Z_V2(packet
));
1353 input_report_key(dev2
, BTN_LEFT
, f
->ts_left
);
1354 input_report_key(dev2
, BTN_RIGHT
, f
->ts_right
);
1355 input_report_key(dev2
, BTN_MIDDLE
, f
->ts_middle
);
1361 /* Report touchpad */
1362 alps_report_mt_data(psmouse
, (f
->fingers
<= 4) ? f
->fingers
: 4);
1364 input_mt_report_finger_count(dev
, f
->fingers
);
1366 input_report_key(dev
, BTN_LEFT
, f
->left
);
1367 input_report_key(dev
, BTN_RIGHT
, f
->right
);
1368 input_report_key(dev
, BTN_MIDDLE
, f
->middle
);
1370 input_report_abs(dev
, ABS_PRESSURE
, f
->pressure
);
1374 static bool alps_is_valid_package_ss4_v2(struct psmouse
*psmouse
)
1376 if (psmouse
->pktcnt
== 4 && ((psmouse
->packet
[3] & 0x08) != 0x08))
1378 if (psmouse
->pktcnt
== 6 && ((psmouse
->packet
[5] & 0x10) != 0x0))
1383 static DEFINE_MUTEX(alps_mutex
);
1385 static void alps_register_bare_ps2_mouse(struct work_struct
*work
)
1387 struct alps_data
*priv
=
1388 container_of(work
, struct alps_data
, dev3_register_work
.work
);
1389 struct psmouse
*psmouse
= priv
->psmouse
;
1390 struct input_dev
*dev3
;
1393 mutex_lock(&alps_mutex
);
1398 dev3
= input_allocate_device();
1400 psmouse_err(psmouse
, "failed to allocate secondary device\n");
1405 snprintf(priv
->phys3
, sizeof(priv
->phys3
), "%s/%s",
1406 psmouse
->ps2dev
.serio
->phys
,
1407 (priv
->dev2
? "input2" : "input1"));
1408 dev3
->phys
= priv
->phys3
;
1411 * format of input device name is: "protocol vendor name"
1412 * see function psmouse_switch_protocol() in psmouse-base.c
1414 dev3
->name
= "PS/2 ALPS Mouse";
1416 dev3
->id
.bustype
= BUS_I8042
;
1417 dev3
->id
.vendor
= 0x0002;
1418 dev3
->id
.product
= PSMOUSE_PS2
;
1419 dev3
->id
.version
= 0x0000;
1420 dev3
->dev
.parent
= &psmouse
->ps2dev
.serio
->dev
;
1422 input_set_capability(dev3
, EV_REL
, REL_X
);
1423 input_set_capability(dev3
, EV_REL
, REL_Y
);
1424 input_set_capability(dev3
, EV_KEY
, BTN_LEFT
);
1425 input_set_capability(dev3
, EV_KEY
, BTN_RIGHT
);
1426 input_set_capability(dev3
, EV_KEY
, BTN_MIDDLE
);
1428 __set_bit(INPUT_PROP_POINTER
, dev3
->propbit
);
1430 error
= input_register_device(dev3
);
1432 psmouse_err(psmouse
,
1433 "failed to register secondary device: %d\n",
1435 input_free_device(dev3
);
1443 * Save the error code so that we can detect that we
1444 * already tried to create the device.
1447 priv
->dev3
= ERR_PTR(error
);
1449 mutex_unlock(&alps_mutex
);
1452 static void alps_report_bare_ps2_packet(struct psmouse
*psmouse
,
1453 unsigned char packet
[],
1454 bool report_buttons
)
1456 struct alps_data
*priv
= psmouse
->private;
1457 struct input_dev
*dev
, *dev2
= NULL
;
1459 /* Figure out which device to use to report the bare packet */
1460 if (priv
->proto_version
== ALPS_PROTO_V2
&&
1461 (priv
->flags
& ALPS_DUALPOINT
)) {
1462 /* On V2 devices the DualPoint Stick reports bare packets */
1464 dev2
= psmouse
->dev
;
1465 } else if (unlikely(IS_ERR_OR_NULL(priv
->dev3
))) {
1466 /* Register dev3 mouse if we received PS/2 packet first time */
1467 if (!IS_ERR(priv
->dev3
))
1468 psmouse_queue_work(psmouse
, &priv
->dev3_register_work
,
1476 alps_report_buttons(dev
, dev2
,
1477 packet
[0] & 1, packet
[0] & 2, packet
[0] & 4);
1479 input_report_rel(dev
, REL_X
,
1480 packet
[1] ? packet
[1] - ((packet
[0] << 4) & 0x100) : 0);
1481 input_report_rel(dev
, REL_Y
,
1482 packet
[2] ? ((packet
[0] << 3) & 0x100) - packet
[2] : 0);
1487 static psmouse_ret_t
alps_handle_interleaved_ps2(struct psmouse
*psmouse
)
1489 struct alps_data
*priv
= psmouse
->private;
1491 if (psmouse
->pktcnt
< 6)
1492 return PSMOUSE_GOOD_DATA
;
1494 if (psmouse
->pktcnt
== 6) {
1496 * Start a timer to flush the packet if it ends up last
1497 * 6-byte packet in the stream. Timer needs to fire
1498 * psmouse core times out itself. 20 ms should be enough
1499 * to decide if we are getting more data or not.
1501 mod_timer(&priv
->timer
, jiffies
+ msecs_to_jiffies(20));
1502 return PSMOUSE_GOOD_DATA
;
1505 del_timer(&priv
->timer
);
1507 if (psmouse
->packet
[6] & 0x80) {
1510 * Highest bit is set - that means we either had
1511 * complete ALPS packet and this is start of the
1512 * next packet or we got garbage.
1515 if (((psmouse
->packet
[3] |
1516 psmouse
->packet
[4] |
1517 psmouse
->packet
[5]) & 0x80) ||
1518 (!alps_is_valid_first_byte(priv
, psmouse
->packet
[6]))) {
1519 psmouse_dbg(psmouse
,
1520 "refusing packet %4ph (suspected interleaved ps/2)\n",
1521 psmouse
->packet
+ 3);
1522 return PSMOUSE_BAD_DATA
;
1525 priv
->process_packet(psmouse
);
1527 /* Continue with the next packet */
1528 psmouse
->packet
[0] = psmouse
->packet
[6];
1529 psmouse
->pktcnt
= 1;
1534 * High bit is 0 - that means that we indeed got a PS/2
1535 * packet in the middle of ALPS packet.
1537 * There is also possibility that we got 6-byte ALPS
1538 * packet followed by 3-byte packet from trackpoint. We
1539 * can not distinguish between these 2 scenarios but
1540 * because the latter is unlikely to happen in course of
1541 * normal operation (user would need to press all
1542 * buttons on the pad and start moving trackpoint
1543 * without touching the pad surface) we assume former.
1544 * Even if we are wrong the wost thing that would happen
1545 * the cursor would jump but we should not get protocol
1546 * de-synchronization.
1549 alps_report_bare_ps2_packet(psmouse
, &psmouse
->packet
[3],
1553 * Continue with the standard ALPS protocol handling,
1554 * but make sure we won't process it as an interleaved
1555 * packet again, which may happen if all buttons are
1556 * pressed. To avoid this let's reset the 4th bit which
1559 psmouse
->packet
[3] = psmouse
->packet
[6] & 0xf7;
1560 psmouse
->pktcnt
= 4;
1563 return PSMOUSE_GOOD_DATA
;
1566 static void alps_flush_packet(unsigned long data
)
1568 struct psmouse
*psmouse
= (struct psmouse
*)data
;
1569 struct alps_data
*priv
= psmouse
->private;
1571 serio_pause_rx(psmouse
->ps2dev
.serio
);
1573 if (psmouse
->pktcnt
== psmouse
->pktsize
) {
1576 * We did not any more data in reasonable amount of time.
1577 * Validate the last 3 bytes and process as a standard
1580 if ((psmouse
->packet
[3] |
1581 psmouse
->packet
[4] |
1582 psmouse
->packet
[5]) & 0x80) {
1583 psmouse_dbg(psmouse
,
1584 "refusing packet %3ph (suspected interleaved ps/2)\n",
1585 psmouse
->packet
+ 3);
1587 priv
->process_packet(psmouse
);
1589 psmouse
->pktcnt
= 0;
1592 serio_continue_rx(psmouse
->ps2dev
.serio
);
1595 static psmouse_ret_t
alps_process_byte(struct psmouse
*psmouse
)
1597 struct alps_data
*priv
= psmouse
->private;
1600 * Check if we are dealing with a bare PS/2 packet, presumably from
1601 * a device connected to the external PS/2 port. Because bare PS/2
1602 * protocol does not have enough constant bits to self-synchronize
1603 * properly we only do this if the device is fully synchronized.
1604 * Can not distinguish V8's first byte from PS/2 packet's
1606 if (priv
->proto_version
!= ALPS_PROTO_V8
&&
1607 !psmouse
->out_of_sync_cnt
&&
1608 (psmouse
->packet
[0] & 0xc8) == 0x08) {
1610 if (psmouse
->pktcnt
== 3) {
1611 alps_report_bare_ps2_packet(psmouse
, psmouse
->packet
,
1613 return PSMOUSE_FULL_PACKET
;
1615 return PSMOUSE_GOOD_DATA
;
1618 /* Check for PS/2 packet stuffed in the middle of ALPS packet. */
1620 if ((priv
->flags
& ALPS_PS2_INTERLEAVED
) &&
1621 psmouse
->pktcnt
>= 4 && (psmouse
->packet
[3] & 0x0f) == 0x0f) {
1622 return alps_handle_interleaved_ps2(psmouse
);
1625 if (!alps_is_valid_first_byte(priv
, psmouse
->packet
[0])) {
1626 psmouse_dbg(psmouse
,
1627 "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
1628 psmouse
->packet
[0], priv
->mask0
, priv
->byte0
);
1629 return PSMOUSE_BAD_DATA
;
1632 /* Bytes 2 - pktsize should have 0 in the highest bit */
1633 if (priv
->proto_version
< ALPS_PROTO_V5
&&
1634 psmouse
->pktcnt
>= 2 && psmouse
->pktcnt
<= psmouse
->pktsize
&&
1635 (psmouse
->packet
[psmouse
->pktcnt
- 1] & 0x80)) {
1636 psmouse_dbg(psmouse
, "refusing packet[%i] = %x\n",
1637 psmouse
->pktcnt
- 1,
1638 psmouse
->packet
[psmouse
->pktcnt
- 1]);
1640 if (priv
->proto_version
== ALPS_PROTO_V3_RUSHMORE
&&
1641 psmouse
->pktcnt
== psmouse
->pktsize
) {
1643 * Some Dell boxes, such as Latitude E6440 or E7440
1644 * with closed lid, quite often smash last byte of
1645 * otherwise valid packet with 0xff. Given that the
1646 * next packet is very likely to be valid let's
1647 * report PSMOUSE_FULL_PACKET but not process data,
1648 * rather than reporting PSMOUSE_BAD_DATA and
1651 return PSMOUSE_FULL_PACKET
;
1654 return PSMOUSE_BAD_DATA
;
1657 if ((priv
->proto_version
== ALPS_PROTO_V7
&&
1658 !alps_is_valid_package_v7(psmouse
)) ||
1659 (priv
->proto_version
== ALPS_PROTO_V8
&&
1660 !alps_is_valid_package_ss4_v2(psmouse
))) {
1661 psmouse_dbg(psmouse
, "refusing packet[%i] = %x\n",
1662 psmouse
->pktcnt
- 1,
1663 psmouse
->packet
[psmouse
->pktcnt
- 1]);
1664 return PSMOUSE_BAD_DATA
;
1667 if (psmouse
->pktcnt
== psmouse
->pktsize
) {
1668 priv
->process_packet(psmouse
);
1669 return PSMOUSE_FULL_PACKET
;
1672 return PSMOUSE_GOOD_DATA
;
1675 static int alps_command_mode_send_nibble(struct psmouse
*psmouse
, int nibble
)
1677 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1678 struct alps_data
*priv
= psmouse
->private;
1680 unsigned char *param
;
1681 unsigned char dummy
[4];
1683 BUG_ON(nibble
> 0xf);
1685 command
= priv
->nibble_commands
[nibble
].command
;
1686 param
= (command
& 0x0f00) ?
1687 dummy
: (unsigned char *)&priv
->nibble_commands
[nibble
].data
;
1689 if (ps2_command(ps2dev
, param
, command
))
1695 static int alps_command_mode_set_addr(struct psmouse
*psmouse
, int addr
)
1697 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1698 struct alps_data
*priv
= psmouse
->private;
1701 if (ps2_command(ps2dev
, NULL
, priv
->addr_command
))
1704 for (i
= 12; i
>= 0; i
-= 4) {
1705 nibble
= (addr
>> i
) & 0xf;
1706 if (alps_command_mode_send_nibble(psmouse
, nibble
))
1713 static int __alps_command_mode_read_reg(struct psmouse
*psmouse
, int addr
)
1715 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1716 unsigned char param
[4];
1718 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
1722 * The address being read is returned in the first two bytes
1723 * of the result. Check that this address matches the expected
1726 if (addr
!= ((param
[0] << 8) | param
[1]))
1732 static int alps_command_mode_read_reg(struct psmouse
*psmouse
, int addr
)
1734 if (alps_command_mode_set_addr(psmouse
, addr
))
1736 return __alps_command_mode_read_reg(psmouse
, addr
);
1739 static int __alps_command_mode_write_reg(struct psmouse
*psmouse
, u8 value
)
1741 if (alps_command_mode_send_nibble(psmouse
, (value
>> 4) & 0xf))
1743 if (alps_command_mode_send_nibble(psmouse
, value
& 0xf))
1748 static int alps_command_mode_write_reg(struct psmouse
*psmouse
, int addr
,
1751 if (alps_command_mode_set_addr(psmouse
, addr
))
1753 return __alps_command_mode_write_reg(psmouse
, value
);
1756 static int alps_rpt_cmd(struct psmouse
*psmouse
, int init_command
,
1757 int repeated_command
, unsigned char *param
)
1759 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1762 if (init_command
&& ps2_command(ps2dev
, param
, init_command
))
1765 if (ps2_command(ps2dev
, NULL
, repeated_command
) ||
1766 ps2_command(ps2dev
, NULL
, repeated_command
) ||
1767 ps2_command(ps2dev
, NULL
, repeated_command
))
1770 param
[0] = param
[1] = param
[2] = 0xff;
1771 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
1774 psmouse_dbg(psmouse
, "%2.2X report: %3ph\n",
1775 repeated_command
, param
);
1779 static bool alps_check_valid_firmware_id(unsigned char id
[])
1784 if (id
[0] == 0x88 &&
1787 (id
[1] & 0xf0) == 0xb0 ||
1788 (id
[1] & 0xf0) == 0xc0)) {
1795 static int alps_enter_command_mode(struct psmouse
*psmouse
)
1797 unsigned char param
[4];
1799 if (alps_rpt_cmd(psmouse
, 0, PSMOUSE_CMD_RESET_WRAP
, param
)) {
1800 psmouse_err(psmouse
, "failed to enter command mode\n");
1804 if (!alps_check_valid_firmware_id(param
)) {
1805 psmouse_dbg(psmouse
,
1806 "unknown response while entering command mode\n");
1812 static inline int alps_exit_command_mode(struct psmouse
*psmouse
)
1814 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1815 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
))
1821 * For DualPoint devices select the device that should respond to
1822 * subsequent commands. It looks like glidepad is behind stickpointer,
1823 * I'd thought it would be other way around...
1825 static int alps_passthrough_mode_v2(struct psmouse
*psmouse
, bool enable
)
1827 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1828 int cmd
= enable
? PSMOUSE_CMD_SETSCALE21
: PSMOUSE_CMD_SETSCALE11
;
1830 if (ps2_command(ps2dev
, NULL
, cmd
) ||
1831 ps2_command(ps2dev
, NULL
, cmd
) ||
1832 ps2_command(ps2dev
, NULL
, cmd
) ||
1833 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
))
1836 /* we may get 3 more bytes, just ignore them */
1837 ps2_drain(ps2dev
, 3, 100);
1842 static int alps_absolute_mode_v1_v2(struct psmouse
*psmouse
)
1844 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1846 /* Try ALPS magic knock - 4 disable before enable */
1847 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1848 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1849 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1850 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1851 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
))
1855 * Switch mouse to poll (remote) mode so motion data will not
1858 return ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETPOLL
);
1861 static int alps_monitor_mode_send_word(struct psmouse
*psmouse
, u16 word
)
1866 * b0-b11 are valid bits, send sequence is inverse.
1867 * e.g. when word = 0x0123, nibble send sequence is 3, 2, 1
1869 for (i
= 0; i
<= 8; i
+= 4) {
1870 nibble
= (word
>> i
) & 0xf;
1871 if (alps_command_mode_send_nibble(psmouse
, nibble
))
1878 static int alps_monitor_mode_write_reg(struct psmouse
*psmouse
,
1879 u16 addr
, u16 value
)
1881 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1883 /* 0x0A0 is the command to write the word */
1884 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
) ||
1885 alps_monitor_mode_send_word(psmouse
, 0x0A0) ||
1886 alps_monitor_mode_send_word(psmouse
, addr
) ||
1887 alps_monitor_mode_send_word(psmouse
, value
) ||
1888 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
))
1894 static int alps_monitor_mode(struct psmouse
*psmouse
, bool enable
)
1896 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1899 /* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */
1900 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_RESET_WRAP
) ||
1901 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_GETINFO
) ||
1902 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1903 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1904 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE21
) ||
1905 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1906 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE21
) ||
1907 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_GETINFO
))
1910 /* EC to exit monitor mode */
1911 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_RESET_WRAP
))
1918 static int alps_absolute_mode_v6(struct psmouse
*psmouse
)
1920 u16 reg_val
= 0x181;
1923 /* enter monitor mode, to write the register */
1924 if (alps_monitor_mode(psmouse
, true))
1927 ret
= alps_monitor_mode_write_reg(psmouse
, 0x000, reg_val
);
1929 if (alps_monitor_mode(psmouse
, false))
1935 static int alps_get_status(struct psmouse
*psmouse
, char *param
)
1937 /* Get status: 0xF5 0xF5 0xF5 0xE9 */
1938 if (alps_rpt_cmd(psmouse
, 0, PSMOUSE_CMD_DISABLE
, param
))
1945 * Turn touchpad tapping on or off. The sequences are:
1946 * 0xE9 0xF5 0xF5 0xF3 0x0A to enable,
1947 * 0xE9 0xF5 0xF5 0xE8 0x00 to disable.
1948 * My guess that 0xE9 (GetInfo) is here as a sync point.
1949 * For models that also have stickpointer (DualPoints) its tapping
1950 * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but
1951 * we don't fiddle with it.
1953 static int alps_tap_mode(struct psmouse
*psmouse
, int enable
)
1955 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1956 int cmd
= enable
? PSMOUSE_CMD_SETRATE
: PSMOUSE_CMD_SETRES
;
1957 unsigned char tap_arg
= enable
? 0x0A : 0x00;
1958 unsigned char param
[4];
1960 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
) ||
1961 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1962 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1963 ps2_command(ps2dev
, &tap_arg
, cmd
))
1966 if (alps_get_status(psmouse
, param
))
1973 * alps_poll() - poll the touchpad for current motion packet.
1976 static int alps_poll(struct psmouse
*psmouse
)
1978 struct alps_data
*priv
= psmouse
->private;
1979 unsigned char buf
[sizeof(psmouse
->packet
)];
1982 if (priv
->flags
& ALPS_PASS
)
1983 alps_passthrough_mode_v2(psmouse
, true);
1985 poll_failed
= ps2_command(&psmouse
->ps2dev
, buf
,
1986 PSMOUSE_CMD_POLL
| (psmouse
->pktsize
<< 8)) < 0;
1988 if (priv
->flags
& ALPS_PASS
)
1989 alps_passthrough_mode_v2(psmouse
, false);
1991 if (poll_failed
|| (buf
[0] & priv
->mask0
) != priv
->byte0
)
1994 if ((psmouse
->badbyte
& 0xc8) == 0x08) {
1996 * Poll the track stick ...
1998 if (ps2_command(&psmouse
->ps2dev
, buf
, PSMOUSE_CMD_POLL
| (3 << 8)))
2002 memcpy(psmouse
->packet
, buf
, sizeof(buf
));
2006 static int alps_hw_init_v1_v2(struct psmouse
*psmouse
)
2008 struct alps_data
*priv
= psmouse
->private;
2010 if ((priv
->flags
& ALPS_PASS
) &&
2011 alps_passthrough_mode_v2(psmouse
, true)) {
2015 if (alps_tap_mode(psmouse
, true)) {
2016 psmouse_warn(psmouse
, "Failed to enable hardware tapping\n");
2020 if (alps_absolute_mode_v1_v2(psmouse
)) {
2021 psmouse_err(psmouse
, "Failed to enable absolute mode\n");
2025 if ((priv
->flags
& ALPS_PASS
) &&
2026 alps_passthrough_mode_v2(psmouse
, false)) {
2030 /* ALPS needs stream mode, otherwise it won't report any data */
2031 if (ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
)) {
2032 psmouse_err(psmouse
, "Failed to enable stream mode\n");
2039 static int alps_hw_init_v6(struct psmouse
*psmouse
)
2041 unsigned char param
[2] = {0xC8, 0x14};
2043 /* Enter passthrough mode to let trackpoint enter 6byte raw mode */
2044 if (alps_passthrough_mode_v2(psmouse
, true))
2047 if (ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
2048 ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
2049 ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
2050 ps2_command(&psmouse
->ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
) ||
2051 ps2_command(&psmouse
->ps2dev
, ¶m
[1], PSMOUSE_CMD_SETRATE
))
2054 if (alps_passthrough_mode_v2(psmouse
, false))
2057 if (alps_absolute_mode_v6(psmouse
)) {
2058 psmouse_err(psmouse
, "Failed to enable absolute mode\n");
2066 * Enable or disable passthrough mode to the trackstick.
2068 static int alps_passthrough_mode_v3(struct psmouse
*psmouse
,
2069 int reg_base
, bool enable
)
2071 int reg_val
, ret
= -1;
2073 if (alps_enter_command_mode(psmouse
))
2076 reg_val
= alps_command_mode_read_reg(psmouse
, reg_base
+ 0x0008);
2085 ret
= __alps_command_mode_write_reg(psmouse
, reg_val
);
2088 if (alps_exit_command_mode(psmouse
))
2093 /* Must be in command mode when calling this function */
2094 static int alps_absolute_mode_v3(struct psmouse
*psmouse
)
2098 reg_val
= alps_command_mode_read_reg(psmouse
, 0x0004);
2103 if (__alps_command_mode_write_reg(psmouse
, reg_val
))
2109 static int alps_probe_trackstick_v3_v7(struct psmouse
*psmouse
, int reg_base
)
2111 int ret
= -EIO
, reg_val
;
2113 if (alps_enter_command_mode(psmouse
))
2116 reg_val
= alps_command_mode_read_reg(psmouse
, reg_base
+ 0x08);
2120 /* bit 7: trackstick is present */
2121 ret
= reg_val
& 0x80 ? 0 : -ENODEV
;
2124 alps_exit_command_mode(psmouse
);
2128 static int alps_setup_trackstick_v3(struct psmouse
*psmouse
, int reg_base
)
2130 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
2132 unsigned char param
[4];
2134 if (alps_passthrough_mode_v3(psmouse
, reg_base
, true))
2138 * E7 report for the trackstick
2140 * There have been reports of failures to seem to trace back
2141 * to the above trackstick check failing. When these occur
2142 * this E7 report fails, so when that happens we continue
2143 * with the assumption that there isn't a trackstick after
2146 if (alps_rpt_cmd(psmouse
, 0, PSMOUSE_CMD_SETSCALE21
, param
)) {
2147 psmouse_warn(psmouse
, "Failed to initialize trackstick (E7 report failed)\n");
2150 psmouse_dbg(psmouse
, "trackstick E7 report: %3ph\n", param
);
2153 * Not sure what this does, but it is absolutely
2154 * essential. Without it, the touchpad does not
2155 * work at all and the trackstick just emits normal
2158 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
2159 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
2160 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
2161 alps_command_mode_send_nibble(psmouse
, 0x9) ||
2162 alps_command_mode_send_nibble(psmouse
, 0x4)) {
2163 psmouse_err(psmouse
,
2164 "Error sending magic E6 sequence\n");
2170 * This ensures the trackstick packets are in the format
2171 * supported by this driver. If bit 1 isn't set the packet
2172 * format is different.
2174 if (alps_enter_command_mode(psmouse
) ||
2175 alps_command_mode_write_reg(psmouse
,
2176 reg_base
+ 0x08, 0x82) ||
2177 alps_exit_command_mode(psmouse
))
2182 if (alps_passthrough_mode_v3(psmouse
, reg_base
, false))
2188 static int alps_hw_init_v3(struct psmouse
*psmouse
)
2190 struct alps_data
*priv
= psmouse
->private;
2191 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
2193 unsigned char param
[4];
2195 if ((priv
->flags
& ALPS_DUALPOINT
) &&
2196 alps_setup_trackstick_v3(psmouse
, ALPS_REG_BASE_PINNACLE
) == -EIO
)
2199 if (alps_enter_command_mode(psmouse
) ||
2200 alps_absolute_mode_v3(psmouse
)) {
2201 psmouse_err(psmouse
, "Failed to enter absolute mode\n");
2205 reg_val
= alps_command_mode_read_reg(psmouse
, 0x0006);
2208 if (__alps_command_mode_write_reg(psmouse
, reg_val
| 0x01))
2211 reg_val
= alps_command_mode_read_reg(psmouse
, 0x0007);
2214 if (__alps_command_mode_write_reg(psmouse
, reg_val
| 0x01))
2217 if (alps_command_mode_read_reg(psmouse
, 0x0144) == -1)
2219 if (__alps_command_mode_write_reg(psmouse
, 0x04))
2222 if (alps_command_mode_read_reg(psmouse
, 0x0159) == -1)
2224 if (__alps_command_mode_write_reg(psmouse
, 0x03))
2227 if (alps_command_mode_read_reg(psmouse
, 0x0163) == -1)
2229 if (alps_command_mode_write_reg(psmouse
, 0x0163, 0x03))
2232 if (alps_command_mode_read_reg(psmouse
, 0x0162) == -1)
2234 if (alps_command_mode_write_reg(psmouse
, 0x0162, 0x04))
2237 alps_exit_command_mode(psmouse
);
2239 /* Set rate and enable data reporting */
2241 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_SETRATE
) ||
2242 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
)) {
2243 psmouse_err(psmouse
, "Failed to enable data reporting\n");
2251 * Leaving the touchpad in command mode will essentially render
2252 * it unusable until the machine reboots, so exit it here just
2255 alps_exit_command_mode(psmouse
);
2259 static int alps_get_v3_v7_resolution(struct psmouse
*psmouse
, int reg_pitch
)
2261 int reg
, x_pitch
, y_pitch
, x_electrode
, y_electrode
, x_phys
, y_phys
;
2262 struct alps_data
*priv
= psmouse
->private;
2264 reg
= alps_command_mode_read_reg(psmouse
, reg_pitch
);
2268 x_pitch
= (char)(reg
<< 4) >> 4; /* sign extend lower 4 bits */
2269 x_pitch
= 50 + 2 * x_pitch
; /* In 0.1 mm units */
2271 y_pitch
= (char)reg
>> 4; /* sign extend upper 4 bits */
2272 y_pitch
= 36 + 2 * y_pitch
; /* In 0.1 mm units */
2274 reg
= alps_command_mode_read_reg(psmouse
, reg_pitch
+ 1);
2278 x_electrode
= (char)(reg
<< 4) >> 4; /* sign extend lower 4 bits */
2279 x_electrode
= 17 + x_electrode
;
2281 y_electrode
= (char)reg
>> 4; /* sign extend upper 4 bits */
2282 y_electrode
= 13 + y_electrode
;
2284 x_phys
= x_pitch
* (x_electrode
- 1); /* In 0.1 mm units */
2285 y_phys
= y_pitch
* (y_electrode
- 1); /* In 0.1 mm units */
2287 priv
->x_res
= priv
->x_max
* 10 / x_phys
; /* units / mm */
2288 priv
->y_res
= priv
->y_max
* 10 / y_phys
; /* units / mm */
2290 psmouse_dbg(psmouse
,
2291 "pitch %dx%d num-electrodes %dx%d physical size %dx%d mm res %dx%d\n",
2292 x_pitch
, y_pitch
, x_electrode
, y_electrode
,
2293 x_phys
/ 10, y_phys
/ 10, priv
->x_res
, priv
->y_res
);
2298 static int alps_hw_init_rushmore_v3(struct psmouse
*psmouse
)
2300 struct alps_data
*priv
= psmouse
->private;
2301 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
2302 int reg_val
, ret
= -1;
2304 if (priv
->flags
& ALPS_DUALPOINT
) {
2305 reg_val
= alps_setup_trackstick_v3(psmouse
,
2306 ALPS_REG_BASE_RUSHMORE
);
2307 if (reg_val
== -EIO
)
2311 if (alps_enter_command_mode(psmouse
) ||
2312 alps_command_mode_read_reg(psmouse
, 0xc2d9) == -1 ||
2313 alps_command_mode_write_reg(psmouse
, 0xc2cb, 0x00))
2316 if (alps_get_v3_v7_resolution(psmouse
, 0xc2da))
2319 reg_val
= alps_command_mode_read_reg(psmouse
, 0xc2c6);
2322 if (__alps_command_mode_write_reg(psmouse
, reg_val
& 0xfd))
2325 if (alps_command_mode_write_reg(psmouse
, 0xc2c9, 0x64))
2328 /* enter absolute mode */
2329 reg_val
= alps_command_mode_read_reg(psmouse
, 0xc2c4);
2332 if (__alps_command_mode_write_reg(psmouse
, reg_val
| 0x02))
2335 alps_exit_command_mode(psmouse
);
2336 return ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
);
2339 alps_exit_command_mode(psmouse
);
2343 /* Must be in command mode when calling this function */
2344 static int alps_absolute_mode_v4(struct psmouse
*psmouse
)
2348 reg_val
= alps_command_mode_read_reg(psmouse
, 0x0004);
2353 if (__alps_command_mode_write_reg(psmouse
, reg_val
))
2359 static int alps_hw_init_v4(struct psmouse
*psmouse
)
2361 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
2362 unsigned char param
[4];
2364 if (alps_enter_command_mode(psmouse
))
2367 if (alps_absolute_mode_v4(psmouse
)) {
2368 psmouse_err(psmouse
, "Failed to enter absolute mode\n");
2372 if (alps_command_mode_write_reg(psmouse
, 0x0007, 0x8c))
2375 if (alps_command_mode_write_reg(psmouse
, 0x0149, 0x03))
2378 if (alps_command_mode_write_reg(psmouse
, 0x0160, 0x03))
2381 if (alps_command_mode_write_reg(psmouse
, 0x017f, 0x15))
2384 if (alps_command_mode_write_reg(psmouse
, 0x0151, 0x01))
2387 if (alps_command_mode_write_reg(psmouse
, 0x0168, 0x03))
2390 if (alps_command_mode_write_reg(psmouse
, 0x014a, 0x03))
2393 if (alps_command_mode_write_reg(psmouse
, 0x0161, 0x03))
2396 alps_exit_command_mode(psmouse
);
2399 * This sequence changes the output from a 9-byte to an
2400 * 8-byte format. All the same data seems to be present,
2401 * just in a more compact format.
2406 if (ps2_command(ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
) ||
2407 ps2_command(ps2dev
, ¶m
[1], PSMOUSE_CMD_SETRATE
) ||
2408 ps2_command(ps2dev
, ¶m
[2], PSMOUSE_CMD_SETRATE
) ||
2409 ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETID
))
2412 /* Set rate and enable data reporting */
2414 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_SETRATE
) ||
2415 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
)) {
2416 psmouse_err(psmouse
, "Failed to enable data reporting\n");
2424 * Leaving the touchpad in command mode will essentially render
2425 * it unusable until the machine reboots, so exit it here just
2428 alps_exit_command_mode(psmouse
);
2432 static int alps_get_otp_values_ss4_v2(struct psmouse
*psmouse
,
2433 unsigned char index
, unsigned char otp
[])
2435 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
2439 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
) ||
2440 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
) ||
2441 ps2_command(ps2dev
, otp
, PSMOUSE_CMD_GETINFO
))
2447 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETPOLL
) ||
2448 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETPOLL
) ||
2449 ps2_command(ps2dev
, otp
, PSMOUSE_CMD_GETINFO
))
2458 static int alps_update_device_area_ss4_v2(unsigned char otp
[][4],
2459 struct alps_data
*priv
)
2461 int num_x_electrode
;
2462 int num_y_electrode
;
2463 int x_pitch
, y_pitch
, x_phys
, y_phys
;
2465 num_x_electrode
= SS4_NUMSENSOR_XOFFSET
+ (otp
[1][0] & 0x0F);
2466 num_y_electrode
= SS4_NUMSENSOR_YOFFSET
+ ((otp
[1][0] >> 4) & 0x0F);
2468 priv
->x_max
= (num_x_electrode
- 1) * SS4_COUNT_PER_ELECTRODE
;
2469 priv
->y_max
= (num_y_electrode
- 1) * SS4_COUNT_PER_ELECTRODE
;
2471 x_pitch
= ((otp
[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM
;
2472 y_pitch
= ((otp
[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM
;
2474 x_phys
= x_pitch
* (num_x_electrode
- 1); /* In 0.1 mm units */
2475 y_phys
= y_pitch
* (num_y_electrode
- 1); /* In 0.1 mm units */
2477 priv
->x_res
= priv
->x_max
* 10 / x_phys
; /* units / mm */
2478 priv
->y_res
= priv
->y_max
* 10 / y_phys
; /* units / mm */
2483 static int alps_update_btn_info_ss4_v2(unsigned char otp
[][4],
2484 struct alps_data
*priv
)
2486 unsigned char is_btnless
;
2488 is_btnless
= (otp
[1][1] >> 3) & 0x01;
2491 priv
->flags
|= ALPS_BUTTONPAD
;
2496 static int alps_set_defaults_ss4_v2(struct psmouse
*psmouse
,
2497 struct alps_data
*priv
)
2499 unsigned char otp
[2][4];
2501 memset(otp
, 0, sizeof(otp
));
2503 if (alps_get_otp_values_ss4_v2(psmouse
, 0, &otp
[0][0]) ||
2504 alps_get_otp_values_ss4_v2(psmouse
, 1, &otp
[1][0]))
2507 alps_update_device_area_ss4_v2(otp
, priv
);
2509 alps_update_btn_info_ss4_v2(otp
, priv
);
2514 static int alps_dolphin_get_device_area(struct psmouse
*psmouse
,
2515 struct alps_data
*priv
)
2517 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
2518 unsigned char param
[4] = {0};
2519 int num_x_electrode
, num_y_electrode
;
2521 if (alps_enter_command_mode(psmouse
))
2525 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_RESET_WRAP
) ||
2526 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETPOLL
) ||
2527 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETPOLL
) ||
2528 ps2_command(ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
) ||
2529 ps2_command(ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
))
2532 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
2536 * Dolphin's sensor line number is not fixed. It can be calculated
2537 * by adding the device's register value with DOLPHIN_PROFILE_X/YOFFSET.
2538 * Further more, we can get device's x_max and y_max by multiplying
2539 * sensor line number with DOLPHIN_COUNT_PER_ELECTRODE.
2541 * e.g. When we get register's sensor_x = 11 & sensor_y = 8,
2542 * real sensor line number X = 11 + 8 = 19, and
2543 * real sensor line number Y = 8 + 1 = 9.
2544 * So, x_max = (19 - 1) * 64 = 1152, and
2545 * y_max = (9 - 1) * 64 = 512.
2547 num_x_electrode
= DOLPHIN_PROFILE_XOFFSET
+ (param
[2] & 0x0F);
2548 num_y_electrode
= DOLPHIN_PROFILE_YOFFSET
+ ((param
[2] >> 4) & 0x0F);
2549 priv
->x_bits
= num_x_electrode
;
2550 priv
->y_bits
= num_y_electrode
;
2551 priv
->x_max
= (num_x_electrode
- 1) * DOLPHIN_COUNT_PER_ELECTRODE
;
2552 priv
->y_max
= (num_y_electrode
- 1) * DOLPHIN_COUNT_PER_ELECTRODE
;
2554 if (alps_exit_command_mode(psmouse
))
2560 static int alps_hw_init_dolphin_v1(struct psmouse
*psmouse
)
2562 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
2563 unsigned char param
[2];
2565 /* This is dolphin "v1" as empirically defined by florin9doi */
2569 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
) ||
2570 ps2_command(ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
) ||
2571 ps2_command(ps2dev
, ¶m
[1], PSMOUSE_CMD_SETRATE
))
2577 static int alps_hw_init_v7(struct psmouse
*psmouse
)
2579 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
2580 int reg_val
, ret
= -1;
2582 if (alps_enter_command_mode(psmouse
) ||
2583 alps_command_mode_read_reg(psmouse
, 0xc2d9) == -1)
2586 if (alps_get_v3_v7_resolution(psmouse
, 0xc397))
2589 if (alps_command_mode_write_reg(psmouse
, 0xc2c9, 0x64))
2592 reg_val
= alps_command_mode_read_reg(psmouse
, 0xc2c4);
2595 if (__alps_command_mode_write_reg(psmouse
, reg_val
| 0x02))
2598 alps_exit_command_mode(psmouse
);
2599 return ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
);
2602 alps_exit_command_mode(psmouse
);
2606 static int alps_hw_init_ss4_v2(struct psmouse
*psmouse
)
2608 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
2609 char param
[2] = {0x64, 0x28};
2612 /* enter absolute mode */
2613 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
) ||
2614 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
) ||
2615 ps2_command(ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
) ||
2616 ps2_command(ps2dev
, ¶m
[1], PSMOUSE_CMD_SETRATE
)) {
2620 /* T.B.D. Decread noise packet number, delete in the future */
2621 if (alps_exit_command_mode(psmouse
) ||
2622 alps_enter_command_mode(psmouse
) ||
2623 alps_command_mode_write_reg(psmouse
, 0x001D, 0x20)) {
2626 alps_exit_command_mode(psmouse
);
2628 return ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
);
2631 alps_exit_command_mode(psmouse
);
2635 static int alps_set_protocol(struct psmouse
*psmouse
,
2636 struct alps_data
*priv
,
2637 const struct alps_protocol_info
*protocol
)
2639 psmouse
->private = priv
;
2641 setup_timer(&priv
->timer
, alps_flush_packet
, (unsigned long)psmouse
);
2643 priv
->proto_version
= protocol
->version
;
2644 priv
->byte0
= protocol
->byte0
;
2645 priv
->mask0
= protocol
->mask0
;
2646 priv
->flags
= protocol
->flags
;
2653 switch (priv
->proto_version
) {
2656 priv
->hw_init
= alps_hw_init_v1_v2
;
2657 priv
->process_packet
= alps_process_packet_v1_v2
;
2658 priv
->set_abs_params
= alps_set_abs_params_st
;
2661 if (dmi_check_system(alps_dmi_has_separate_stick_buttons
))
2662 priv
->flags
|= ALPS_STICK_BITS
;
2666 priv
->hw_init
= alps_hw_init_v3
;
2667 priv
->process_packet
= alps_process_packet_v3
;
2668 priv
->set_abs_params
= alps_set_abs_params_semi_mt
;
2669 priv
->decode_fields
= alps_decode_pinnacle
;
2670 priv
->nibble_commands
= alps_v3_nibble_commands
;
2671 priv
->addr_command
= PSMOUSE_CMD_RESET_WRAP
;
2673 if (alps_probe_trackstick_v3_v7(psmouse
,
2674 ALPS_REG_BASE_PINNACLE
) < 0)
2675 priv
->flags
&= ~ALPS_DUALPOINT
;
2679 case ALPS_PROTO_V3_RUSHMORE
:
2680 priv
->hw_init
= alps_hw_init_rushmore_v3
;
2681 priv
->process_packet
= alps_process_packet_v3
;
2682 priv
->set_abs_params
= alps_set_abs_params_semi_mt
;
2683 priv
->decode_fields
= alps_decode_rushmore
;
2684 priv
->nibble_commands
= alps_v3_nibble_commands
;
2685 priv
->addr_command
= PSMOUSE_CMD_RESET_WRAP
;
2689 if (alps_probe_trackstick_v3_v7(psmouse
,
2690 ALPS_REG_BASE_RUSHMORE
) < 0)
2691 priv
->flags
&= ~ALPS_DUALPOINT
;
2696 priv
->hw_init
= alps_hw_init_v4
;
2697 priv
->process_packet
= alps_process_packet_v4
;
2698 priv
->set_abs_params
= alps_set_abs_params_semi_mt
;
2699 priv
->nibble_commands
= alps_v4_nibble_commands
;
2700 priv
->addr_command
= PSMOUSE_CMD_DISABLE
;
2704 priv
->hw_init
= alps_hw_init_dolphin_v1
;
2705 priv
->process_packet
= alps_process_touchpad_packet_v3_v5
;
2706 priv
->decode_fields
= alps_decode_dolphin
;
2707 priv
->set_abs_params
= alps_set_abs_params_semi_mt
;
2708 priv
->nibble_commands
= alps_v3_nibble_commands
;
2709 priv
->addr_command
= PSMOUSE_CMD_RESET_WRAP
;
2713 if (alps_dolphin_get_device_area(psmouse
, priv
))
2719 priv
->hw_init
= alps_hw_init_v6
;
2720 priv
->process_packet
= alps_process_packet_v6
;
2721 priv
->set_abs_params
= alps_set_abs_params_st
;
2722 priv
->nibble_commands
= alps_v6_nibble_commands
;
2728 priv
->hw_init
= alps_hw_init_v7
;
2729 priv
->process_packet
= alps_process_packet_v7
;
2730 priv
->decode_fields
= alps_decode_packet_v7
;
2731 priv
->set_abs_params
= alps_set_abs_params_v7
;
2732 priv
->nibble_commands
= alps_v3_nibble_commands
;
2733 priv
->addr_command
= PSMOUSE_CMD_RESET_WRAP
;
2734 priv
->x_max
= 0xfff;
2735 priv
->y_max
= 0x7ff;
2737 if (priv
->fw_ver
[1] != 0xba)
2738 priv
->flags
|= ALPS_BUTTONPAD
;
2740 if (alps_probe_trackstick_v3_v7(psmouse
, ALPS_REG_BASE_V7
) < 0)
2741 priv
->flags
&= ~ALPS_DUALPOINT
;
2746 priv
->hw_init
= alps_hw_init_ss4_v2
;
2747 priv
->process_packet
= alps_process_packet_ss4_v2
;
2748 priv
->decode_fields
= alps_decode_ss4_v2
;
2749 priv
->set_abs_params
= alps_set_abs_params_ss4_v2
;
2750 priv
->nibble_commands
= alps_v3_nibble_commands
;
2751 priv
->addr_command
= PSMOUSE_CMD_RESET_WRAP
;
2753 if (alps_set_defaults_ss4_v2(psmouse
, priv
))
2756 if (priv
->fw_ver
[1] == 0x1)
2757 priv
->flags
|= ALPS_DUALPOINT
|
2758 ALPS_DUALPOINT_WITH_PRESSURE
;
2766 static const struct alps_protocol_info
*alps_match_table(unsigned char *e7
,
2769 const struct alps_model_info
*model
;
2772 for (i
= 0; i
< ARRAY_SIZE(alps_model_data
); i
++) {
2773 model
= &alps_model_data
[i
];
2775 if (!memcmp(e7
, model
->signature
, sizeof(model
->signature
)) &&
2776 (!model
->command_mode_resp
||
2777 model
->command_mode_resp
== ec
[2])) {
2779 return &model
->protocol_info
;
2786 static int alps_identify(struct psmouse
*psmouse
, struct alps_data
*priv
)
2788 const struct alps_protocol_info
*protocol
;
2789 unsigned char e6
[4], e7
[4], ec
[4];
2793 * First try "E6 report".
2794 * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed.
2795 * The bits 0-2 of the first byte will be 1s if some buttons are
2798 if (alps_rpt_cmd(psmouse
, PSMOUSE_CMD_SETRES
,
2799 PSMOUSE_CMD_SETSCALE11
, e6
))
2802 if ((e6
[0] & 0xf8) != 0 || e6
[1] != 0 || (e6
[2] != 10 && e6
[2] != 100))
2806 * Now get the "E7" and "EC" reports. These will uniquely identify
2807 * most ALPS touchpads.
2809 if (alps_rpt_cmd(psmouse
, PSMOUSE_CMD_SETRES
,
2810 PSMOUSE_CMD_SETSCALE21
, e7
) ||
2811 alps_rpt_cmd(psmouse
, PSMOUSE_CMD_SETRES
,
2812 PSMOUSE_CMD_RESET_WRAP
, ec
) ||
2813 alps_exit_command_mode(psmouse
))
2816 protocol
= alps_match_table(e7
, ec
);
2818 if (e7
[0] == 0x73 && e7
[1] == 0x03 && e7
[2] == 0x50 &&
2819 ec
[0] == 0x73 && (ec
[1] == 0x01 || ec
[1] == 0x02)) {
2820 protocol
= &alps_v5_protocol_data
;
2821 } else if (ec
[0] == 0x88 &&
2822 ((ec
[1] & 0xf0) == 0xb0 || (ec
[1] & 0xf0) == 0xc0)) {
2823 protocol
= &alps_v7_protocol_data
;
2824 } else if (ec
[0] == 0x88 && ec
[1] == 0x08) {
2825 protocol
= &alps_v3_rushmore_data
;
2826 } else if (ec
[0] == 0x88 && ec
[1] == 0x07 &&
2827 ec
[2] >= 0x90 && ec
[2] <= 0x9d) {
2828 protocol
= &alps_v3_protocol_data
;
2829 } else if (e7
[0] == 0x73 && e7
[1] == 0x03 &&
2830 e7
[2] == 0x14 && ec
[1] == 0x02) {
2831 protocol
= &alps_v8_protocol_data
;
2832 } else if (e7
[0] == 0x73 && e7
[1] == 0x03 &&
2833 e7
[2] == 0x28 && ec
[1] == 0x01) {
2834 protocol
= &alps_v8_protocol_data
;
2836 psmouse_dbg(psmouse
,
2837 "Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7
, ec
);
2843 /* Save the Firmware version */
2844 memcpy(priv
->fw_ver
, ec
, 3);
2845 error
= alps_set_protocol(psmouse
, priv
, protocol
);
2853 static int alps_reconnect(struct psmouse
*psmouse
)
2855 struct alps_data
*priv
= psmouse
->private;
2857 psmouse_reset(psmouse
);
2859 if (alps_identify(psmouse
, priv
) < 0)
2862 return priv
->hw_init(psmouse
);
2865 static void alps_disconnect(struct psmouse
*psmouse
)
2867 struct alps_data
*priv
= psmouse
->private;
2869 psmouse_reset(psmouse
);
2870 del_timer_sync(&priv
->timer
);
2872 input_unregister_device(priv
->dev2
);
2873 if (!IS_ERR_OR_NULL(priv
->dev3
))
2874 input_unregister_device(priv
->dev3
);
2878 static void alps_set_abs_params_st(struct alps_data
*priv
,
2879 struct input_dev
*dev1
)
2881 input_set_abs_params(dev1
, ABS_X
, 0, priv
->x_max
, 0, 0);
2882 input_set_abs_params(dev1
, ABS_Y
, 0, priv
->y_max
, 0, 0);
2883 input_set_abs_params(dev1
, ABS_PRESSURE
, 0, 127, 0, 0);
2886 static void alps_set_abs_params_mt_common(struct alps_data
*priv
,
2887 struct input_dev
*dev1
)
2889 input_set_abs_params(dev1
, ABS_MT_POSITION_X
, 0, priv
->x_max
, 0, 0);
2890 input_set_abs_params(dev1
, ABS_MT_POSITION_Y
, 0, priv
->y_max
, 0, 0);
2892 input_abs_set_res(dev1
, ABS_MT_POSITION_X
, priv
->x_res
);
2893 input_abs_set_res(dev1
, ABS_MT_POSITION_Y
, priv
->y_res
);
2895 set_bit(BTN_TOOL_TRIPLETAP
, dev1
->keybit
);
2896 set_bit(BTN_TOOL_QUADTAP
, dev1
->keybit
);
2899 static void alps_set_abs_params_semi_mt(struct alps_data
*priv
,
2900 struct input_dev
*dev1
)
2902 alps_set_abs_params_mt_common(priv
, dev1
);
2903 input_set_abs_params(dev1
, ABS_PRESSURE
, 0, 127, 0, 0);
2905 input_mt_init_slots(dev1
, MAX_TOUCHES
,
2906 INPUT_MT_POINTER
| INPUT_MT_DROP_UNUSED
|
2910 static void alps_set_abs_params_v7(struct alps_data
*priv
,
2911 struct input_dev
*dev1
)
2913 alps_set_abs_params_mt_common(priv
, dev1
);
2914 set_bit(BTN_TOOL_QUINTTAP
, dev1
->keybit
);
2916 input_mt_init_slots(dev1
, MAX_TOUCHES
,
2917 INPUT_MT_POINTER
| INPUT_MT_DROP_UNUSED
|
2920 set_bit(BTN_TOOL_QUINTTAP
, dev1
->keybit
);
2923 static void alps_set_abs_params_ss4_v2(struct alps_data
*priv
,
2924 struct input_dev
*dev1
)
2926 alps_set_abs_params_mt_common(priv
, dev1
);
2927 input_set_abs_params(dev1
, ABS_PRESSURE
, 0, 127, 0, 0);
2928 set_bit(BTN_TOOL_QUINTTAP
, dev1
->keybit
);
2930 input_mt_init_slots(dev1
, MAX_TOUCHES
,
2931 INPUT_MT_POINTER
| INPUT_MT_DROP_UNUSED
|
2935 int alps_init(struct psmouse
*psmouse
)
2937 struct alps_data
*priv
= psmouse
->private;
2938 struct input_dev
*dev1
= psmouse
->dev
;
2941 error
= priv
->hw_init(psmouse
);
2946 * Undo part of setup done for us by psmouse core since touchpad
2947 * is not a relative device.
2949 __clear_bit(EV_REL
, dev1
->evbit
);
2950 __clear_bit(REL_X
, dev1
->relbit
);
2951 __clear_bit(REL_Y
, dev1
->relbit
);
2954 * Now set up our capabilities.
2956 dev1
->evbit
[BIT_WORD(EV_KEY
)] |= BIT_MASK(EV_KEY
);
2957 dev1
->keybit
[BIT_WORD(BTN_TOUCH
)] |= BIT_MASK(BTN_TOUCH
);
2958 dev1
->keybit
[BIT_WORD(BTN_TOOL_FINGER
)] |= BIT_MASK(BTN_TOOL_FINGER
);
2959 dev1
->keybit
[BIT_WORD(BTN_LEFT
)] |=
2960 BIT_MASK(BTN_LEFT
) | BIT_MASK(BTN_RIGHT
);
2962 dev1
->evbit
[BIT_WORD(EV_ABS
)] |= BIT_MASK(EV_ABS
);
2964 priv
->set_abs_params(priv
, dev1
);
2966 if (priv
->flags
& ALPS_WHEEL
) {
2967 dev1
->evbit
[BIT_WORD(EV_REL
)] |= BIT_MASK(EV_REL
);
2968 dev1
->relbit
[BIT_WORD(REL_WHEEL
)] |= BIT_MASK(REL_WHEEL
);
2971 if (priv
->flags
& (ALPS_FW_BK_1
| ALPS_FW_BK_2
)) {
2972 dev1
->keybit
[BIT_WORD(BTN_FORWARD
)] |= BIT_MASK(BTN_FORWARD
);
2973 dev1
->keybit
[BIT_WORD(BTN_BACK
)] |= BIT_MASK(BTN_BACK
);
2976 if (priv
->flags
& ALPS_FOUR_BUTTONS
) {
2977 dev1
->keybit
[BIT_WORD(BTN_0
)] |= BIT_MASK(BTN_0
);
2978 dev1
->keybit
[BIT_WORD(BTN_1
)] |= BIT_MASK(BTN_1
);
2979 dev1
->keybit
[BIT_WORD(BTN_2
)] |= BIT_MASK(BTN_2
);
2980 dev1
->keybit
[BIT_WORD(BTN_3
)] |= BIT_MASK(BTN_3
);
2981 } else if (priv
->flags
& ALPS_BUTTONPAD
) {
2982 set_bit(INPUT_PROP_BUTTONPAD
, dev1
->propbit
);
2983 clear_bit(BTN_RIGHT
, dev1
->keybit
);
2985 dev1
->keybit
[BIT_WORD(BTN_MIDDLE
)] |= BIT_MASK(BTN_MIDDLE
);
2988 if (priv
->flags
& ALPS_DUALPOINT
) {
2989 struct input_dev
*dev2
;
2991 dev2
= input_allocate_device();
2993 psmouse_err(psmouse
,
2994 "failed to allocate trackstick device\n");
2999 snprintf(priv
->phys2
, sizeof(priv
->phys2
), "%s/input1",
3000 psmouse
->ps2dev
.serio
->phys
);
3001 dev2
->phys
= priv
->phys2
;
3004 * format of input device name is: "protocol vendor name"
3005 * see function psmouse_switch_protocol() in psmouse-base.c
3007 dev2
->name
= "AlpsPS/2 ALPS DualPoint Stick";
3009 dev2
->id
.bustype
= BUS_I8042
;
3010 dev2
->id
.vendor
= 0x0002;
3011 dev2
->id
.product
= PSMOUSE_ALPS
;
3012 dev2
->id
.version
= priv
->proto_version
;
3013 dev2
->dev
.parent
= &psmouse
->ps2dev
.serio
->dev
;
3015 input_set_capability(dev2
, EV_REL
, REL_X
);
3016 input_set_capability(dev2
, EV_REL
, REL_Y
);
3017 if (priv
->flags
& ALPS_DUALPOINT_WITH_PRESSURE
) {
3018 input_set_capability(dev2
, EV_ABS
, ABS_PRESSURE
);
3019 input_set_abs_params(dev2
, ABS_PRESSURE
, 0, 127, 0, 0);
3021 input_set_capability(dev2
, EV_KEY
, BTN_LEFT
);
3022 input_set_capability(dev2
, EV_KEY
, BTN_RIGHT
);
3023 input_set_capability(dev2
, EV_KEY
, BTN_MIDDLE
);
3025 __set_bit(INPUT_PROP_POINTER
, dev2
->propbit
);
3026 __set_bit(INPUT_PROP_POINTING_STICK
, dev2
->propbit
);
3028 error
= input_register_device(dev2
);
3030 psmouse_err(psmouse
,
3031 "failed to register trackstick device: %d\n",
3033 input_free_device(dev2
);
3040 priv
->psmouse
= psmouse
;
3042 INIT_DELAYED_WORK(&priv
->dev3_register_work
,
3043 alps_register_bare_ps2_mouse
);
3045 psmouse
->protocol_handler
= alps_process_byte
;
3046 psmouse
->poll
= alps_poll
;
3047 psmouse
->disconnect
= alps_disconnect
;
3048 psmouse
->reconnect
= alps_reconnect
;
3049 psmouse
->pktsize
= priv
->proto_version
== ALPS_PROTO_V4
? 8 : 6;
3051 /* We are having trouble resyncing ALPS touchpads so disable it for now */
3052 psmouse
->resync_time
= 0;
3054 /* Allow 2 invalid packets without resetting device */
3055 psmouse
->resetafter
= psmouse
->pktsize
* 2;
3060 psmouse_reset(psmouse
);
3062 * Even though we did not allocate psmouse->private we do free
3065 kfree(psmouse
->private);
3066 psmouse
->private = NULL
;
3070 int alps_detect(struct psmouse
*psmouse
, bool set_properties
)
3072 struct alps_data
*priv
;
3075 error
= alps_identify(psmouse
, NULL
);
3080 * Reset the device to make sure it is fully operational:
3081 * on some laptops, like certain Dell Latitudes, we may
3082 * fail to properly detect presence of trackstick if device
3083 * has not been reset.
3085 psmouse_reset(psmouse
);
3087 priv
= kzalloc(sizeof(struct alps_data
), GFP_KERNEL
);
3091 error
= alps_identify(psmouse
, priv
);
3097 if (set_properties
) {
3098 psmouse
->vendor
= "ALPS";
3099 psmouse
->name
= priv
->flags
& ALPS_DUALPOINT
?
3100 "DualPoint TouchPad" : "GlidePoint";
3101 psmouse
->model
= priv
->proto_version
;
3104 * Destroy alps_data structure we allocated earlier since
3105 * this was just a "trial run". Otherwise we'll keep it
3106 * to be used by alps_init() which has to be called if
3107 * we succeed and set_properties is true.
3110 psmouse
->private = NULL
;