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 */
102 #define ALPS_IS_RUSHMORE 0x100 /* device is a rushmore */
103 #define ALPS_BUTTONPAD 0x200 /* device is a clickpad */
105 static const struct alps_model_info alps_model_data
[] = {
106 { { 0x32, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
}, /* Toshiba Salellite Pro M10 */
107 { { 0x33, 0x02, 0x0a }, 0x00, ALPS_PROTO_V1
, 0x88, 0xf8, 0 }, /* UMAX-530T */
108 { { 0x53, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 },
109 { { 0x53, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 },
110 { { 0x60, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 }, /* HP ze1115 */
111 { { 0x63, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 },
112 { { 0x63, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 },
113 { { 0x63, 0x02, 0x28 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_FW_BK_2
}, /* Fujitsu Siemens S6010 */
114 { { 0x63, 0x02, 0x3c }, 0x00, ALPS_PROTO_V2
, 0x8f, 0x8f, ALPS_WHEEL
}, /* Toshiba Satellite S2400-103 */
115 { { 0x63, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2
, 0xef, 0xef, ALPS_FW_BK_1
}, /* NEC Versa L320 */
116 { { 0x63, 0x02, 0x64 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 },
117 { { 0x63, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
}, /* Dell Latitude D800 */
118 { { 0x73, 0x00, 0x0a }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_DUALPOINT
}, /* ThinkPad R61 8918-5QG */
119 { { 0x73, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, 0 },
120 { { 0x73, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_FW_BK_2
}, /* Ahtec Laptop */
121 { { 0x20, 0x02, 0x0e }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
}, /* XXX */
122 { { 0x22, 0x02, 0x0a }, 0x00, ALPS_PROTO_V2
, 0xf8, 0xf8, ALPS_PASS
| ALPS_DUALPOINT
},
123 { { 0x22, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xff, 0xff, ALPS_PASS
| ALPS_DUALPOINT
}, /* Dell Latitude D600 */
124 /* Dell Latitude E5500, E6400, E6500, Precision M4400 */
125 { { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xcf, 0xcf,
126 ALPS_PASS
| ALPS_DUALPOINT
| ALPS_PS2_INTERLEAVED
},
127 { { 0x73, 0x00, 0x14 }, 0x00, ALPS_PROTO_V6
, 0xff, 0xff, ALPS_DUALPOINT
}, /* Dell XT2 */
128 { { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2
, 0xcf, 0xcf, ALPS_FOUR_BUTTONS
}, /* Dell Vostro 1400 */
129 { { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2
, 0xff, 0xff,
130 ALPS_PASS
| ALPS_DUALPOINT
| ALPS_PS2_INTERLEAVED
}, /* Toshiba Tecra A11-11L */
131 { { 0x73, 0x02, 0x64 }, 0x8a, ALPS_PROTO_V4
, 0x8f, 0x8f, 0 },
134 static void alps_set_abs_params_st(struct alps_data
*priv
,
135 struct input_dev
*dev1
);
136 static void alps_set_abs_params_mt(struct alps_data
*priv
,
137 struct input_dev
*dev1
);
140 * XXX - this entry is suspicious. First byte has zero lower nibble,
141 * which is what a normal mouse would report. Also, the value 0x0e
142 * isn't valid per PS/2 spec.
145 /* Packet formats are described in Documentation/input/alps.txt */
147 static bool alps_is_valid_first_byte(struct alps_data
*priv
,
150 return (data
& priv
->mask0
) == priv
->byte0
;
153 static void alps_report_buttons(struct psmouse
*psmouse
,
154 struct input_dev
*dev1
, struct input_dev
*dev2
,
155 int left
, int right
, int middle
)
157 struct input_dev
*dev
;
160 * If shared button has already been reported on the
161 * other device (dev2) then this event should be also
162 * sent through that device.
164 dev
= test_bit(BTN_LEFT
, dev2
->key
) ? dev2
: dev1
;
165 input_report_key(dev
, BTN_LEFT
, left
);
167 dev
= test_bit(BTN_RIGHT
, dev2
->key
) ? dev2
: dev1
;
168 input_report_key(dev
, BTN_RIGHT
, right
);
170 dev
= test_bit(BTN_MIDDLE
, dev2
->key
) ? dev2
: dev1
;
171 input_report_key(dev
, BTN_MIDDLE
, middle
);
174 * Sync the _other_ device now, we'll do the first
175 * device later once we report the rest of the events.
180 static void alps_process_packet_v1_v2(struct psmouse
*psmouse
)
182 struct alps_data
*priv
= psmouse
->private;
183 unsigned char *packet
= psmouse
->packet
;
184 struct input_dev
*dev
= psmouse
->dev
;
185 struct input_dev
*dev2
= priv
->dev2
;
186 int x
, y
, z
, ges
, fin
, left
, right
, middle
;
187 int back
= 0, forward
= 0;
189 if (priv
->proto_version
== ALPS_PROTO_V1
) {
190 left
= packet
[2] & 0x10;
191 right
= packet
[2] & 0x08;
193 x
= packet
[1] | ((packet
[0] & 0x07) << 7);
194 y
= packet
[4] | ((packet
[3] & 0x07) << 7);
197 left
= packet
[3] & 1;
198 right
= packet
[3] & 2;
199 middle
= packet
[3] & 4;
200 x
= packet
[1] | ((packet
[2] & 0x78) << (7 - 3));
201 y
= packet
[4] | ((packet
[3] & 0x70) << (7 - 4));
205 if (priv
->flags
& ALPS_FW_BK_1
) {
206 back
= packet
[0] & 0x10;
207 forward
= packet
[2] & 4;
210 if (priv
->flags
& ALPS_FW_BK_2
) {
211 back
= packet
[3] & 4;
212 forward
= packet
[2] & 4;
213 if ((middle
= forward
&& back
))
220 if ((priv
->flags
& ALPS_DUALPOINT
) && z
== 127) {
221 input_report_rel(dev2
, REL_X
, (x
> 383 ? (x
- 768) : x
));
222 input_report_rel(dev2
, REL_Y
, -(y
> 255 ? (y
- 512) : y
));
224 alps_report_buttons(psmouse
, dev2
, dev
, left
, right
, middle
);
230 alps_report_buttons(psmouse
, dev
, dev2
, left
, right
, middle
);
232 /* Convert hardware tap to a reasonable Z value */
237 * A "tap and drag" operation is reported by the hardware as a transition
238 * from (!fin && ges) to (fin && ges). This should be translated to the
239 * sequence Z>0, Z==0, Z>0, so the Z==0 event has to be generated manually.
241 if (ges
&& fin
&& !priv
->prev_fin
) {
242 input_report_abs(dev
, ABS_X
, x
);
243 input_report_abs(dev
, ABS_Y
, y
);
244 input_report_abs(dev
, ABS_PRESSURE
, 0);
245 input_report_key(dev
, BTN_TOOL_FINGER
, 0);
248 priv
->prev_fin
= fin
;
251 input_report_key(dev
, BTN_TOUCH
, 1);
253 input_report_key(dev
, BTN_TOUCH
, 0);
256 input_report_abs(dev
, ABS_X
, x
);
257 input_report_abs(dev
, ABS_Y
, y
);
260 input_report_abs(dev
, ABS_PRESSURE
, z
);
261 input_report_key(dev
, BTN_TOOL_FINGER
, z
> 0);
263 if (priv
->flags
& ALPS_WHEEL
)
264 input_report_rel(dev
, REL_WHEEL
, ((packet
[2] << 1) & 0x08) - ((packet
[0] >> 4) & 0x07));
266 if (priv
->flags
& (ALPS_FW_BK_1
| ALPS_FW_BK_2
)) {
267 input_report_key(dev
, BTN_FORWARD
, forward
);
268 input_report_key(dev
, BTN_BACK
, back
);
271 if (priv
->flags
& ALPS_FOUR_BUTTONS
) {
272 input_report_key(dev
, BTN_0
, packet
[2] & 4);
273 input_report_key(dev
, BTN_1
, packet
[0] & 0x10);
274 input_report_key(dev
, BTN_2
, packet
[3] & 4);
275 input_report_key(dev
, BTN_3
, packet
[0] & 0x20);
282 * Process bitmap data for V5 protocols. Return value is null.
284 * The bitmaps don't have enough data to track fingers, so this function
285 * only generates points representing a bounding box of at most two contacts.
286 * These two points are returned in fields->mt.
288 static void alps_process_bitmap_dolphin(struct alps_data
*priv
,
289 struct alps_fields
*fields
)
291 int box_middle_x
, box_middle_y
;
292 unsigned int x_map
, y_map
;
293 unsigned char start_bit
, end_bit
;
294 unsigned char x_msb
, x_lsb
, y_msb
, y_lsb
;
296 x_map
= fields
->x_map
;
297 y_map
= fields
->y_map
;
299 if (!x_map
|| !y_map
)
302 /* Get Most-significant and Least-significant bit */
308 /* Most-significant bit should never exceed max sensor line number */
309 if (x_msb
> priv
->x_bits
|| y_msb
> priv
->y_bits
)
312 if (fields
->fingers
> 1) {
313 start_bit
= priv
->x_bits
- x_msb
;
314 end_bit
= priv
->x_bits
- x_lsb
;
315 box_middle_x
= (priv
->x_max
* (start_bit
+ end_bit
)) /
316 (2 * (priv
->x_bits
- 1));
318 start_bit
= y_lsb
- 1;
320 box_middle_y
= (priv
->y_max
* (start_bit
+ end_bit
)) /
321 (2 * (priv
->y_bits
- 1));
322 fields
->mt
[0] = fields
->st
;
323 fields
->mt
[1].x
= 2 * box_middle_x
- fields
->mt
[0].x
;
324 fields
->mt
[1].y
= 2 * box_middle_y
- fields
->mt
[0].y
;
328 static void alps_get_bitmap_points(unsigned int map
,
329 struct alps_bitmap_point
*low
,
330 struct alps_bitmap_point
*high
,
333 struct alps_bitmap_point
*point
;
334 int i
, bit
, prev_bit
= 0;
337 for (i
= 0; map
!= 0; i
++, map
>>= 1) {
341 point
->start_bit
= i
;
355 * Process bitmap data from v3 and v4 protocols. Returns the number of
356 * fingers detected. A return value of 0 means at least one of the
359 * The bitmaps don't have enough data to track fingers, so this function
360 * only generates points representing a bounding box of all contacts.
361 * These points are returned in fields->mt when the return value
364 static int alps_process_bitmap(struct alps_data
*priv
,
365 struct alps_fields
*fields
)
367 int i
, fingers_x
= 0, fingers_y
= 0, fingers
;
368 struct alps_bitmap_point x_low
= {0,}, x_high
= {0,};
369 struct alps_bitmap_point y_low
= {0,}, y_high
= {0,};
371 if (!fields
->x_map
|| !fields
->y_map
)
374 alps_get_bitmap_points(fields
->x_map
, &x_low
, &x_high
, &fingers_x
);
375 alps_get_bitmap_points(fields
->y_map
, &y_low
, &y_high
, &fingers_y
);
378 * Fingers can overlap, so we use the maximum count of fingers
379 * on either axis as the finger count.
381 fingers
= max(fingers_x
, fingers_y
);
384 * If an axis reports only a single contact, we have overlapping or
385 * adjacent fingers. Divide the single contact between the two points.
387 if (fingers_x
== 1) {
388 i
= (x_low
.num_bits
- 1) / 2;
389 x_low
.num_bits
= x_low
.num_bits
- i
;
390 x_high
.start_bit
= x_low
.start_bit
+ i
;
391 x_high
.num_bits
= max(i
, 1);
393 if (fingers_y
== 1) {
394 i
= (y_low
.num_bits
- 1) / 2;
395 y_low
.num_bits
= y_low
.num_bits
- i
;
396 y_high
.start_bit
= y_low
.start_bit
+ i
;
397 y_high
.num_bits
= max(i
, 1);
401 (priv
->x_max
* (2 * x_low
.start_bit
+ x_low
.num_bits
- 1)) /
402 (2 * (priv
->x_bits
- 1));
404 (priv
->y_max
* (2 * y_low
.start_bit
+ y_low
.num_bits
- 1)) /
405 (2 * (priv
->y_bits
- 1));
408 (priv
->x_max
* (2 * x_high
.start_bit
+ x_high
.num_bits
- 1)) /
409 (2 * (priv
->x_bits
- 1));
411 (priv
->y_max
* (2 * y_high
.start_bit
+ y_high
.num_bits
- 1)) /
412 (2 * (priv
->y_bits
- 1));
414 /* y-bitmap order is reversed, except on rushmore */
415 if (!(priv
->flags
& ALPS_IS_RUSHMORE
)) {
416 fields
->mt
[0].y
= priv
->y_max
- fields
->mt
[0].y
;
417 fields
->mt
[1].y
= priv
->y_max
- fields
->mt
[1].y
;
423 static void alps_set_slot(struct input_dev
*dev
, int slot
, int x
, int y
)
425 input_mt_slot(dev
, slot
);
426 input_mt_report_slot_state(dev
, MT_TOOL_FINGER
, true);
427 input_report_abs(dev
, ABS_MT_POSITION_X
, x
);
428 input_report_abs(dev
, ABS_MT_POSITION_Y
, y
);
431 static void alps_report_mt_data(struct psmouse
*psmouse
, int n
)
433 struct alps_data
*priv
= psmouse
->private;
434 struct input_dev
*dev
= psmouse
->dev
;
435 struct alps_fields
*f
= &priv
->f
;
436 int i
, slot
[MAX_TOUCHES
];
438 input_mt_assign_slots(dev
, slot
, f
->mt
, n
);
439 for (i
= 0; i
< n
; i
++)
440 alps_set_slot(dev
, slot
[i
], f
->mt
[i
].x
, f
->mt
[i
].y
);
442 input_mt_sync_frame(dev
);
445 static void alps_report_semi_mt_data(struct psmouse
*psmouse
, int fingers
)
447 struct alps_data
*priv
= psmouse
->private;
448 struct input_dev
*dev
= psmouse
->dev
;
449 struct alps_fields
*f
= &priv
->f
;
451 /* Use st data when we don't have mt data */
453 f
->mt
[0].x
= f
->st
.x
;
454 f
->mt
[0].y
= f
->st
.y
;
455 fingers
= f
->pressure
> 0 ? 1 : 0;
458 alps_report_mt_data(psmouse
, (fingers
<= 2) ? fingers
: 2);
460 input_mt_report_finger_count(dev
, fingers
);
462 input_report_key(dev
, BTN_LEFT
, f
->left
);
463 input_report_key(dev
, BTN_RIGHT
, f
->right
);
464 input_report_key(dev
, BTN_MIDDLE
, f
->middle
);
466 input_report_abs(dev
, ABS_PRESSURE
, f
->pressure
);
471 static void alps_process_trackstick_packet_v3(struct psmouse
*psmouse
)
473 struct alps_data
*priv
= psmouse
->private;
474 unsigned char *packet
= psmouse
->packet
;
475 struct input_dev
*dev
= priv
->dev2
;
476 int x
, y
, z
, left
, right
, middle
;
478 /* Sanity check packet */
479 if (!(packet
[0] & 0x40)) {
480 psmouse_dbg(psmouse
, "Bad trackstick packet, discarding\n");
485 * There's a special packet that seems to indicate the end
486 * of a stream of trackstick data. Filter these out.
488 if (packet
[1] == 0x7f && packet
[2] == 0x7f && packet
[4] == 0x7f)
491 x
= (s8
)(((packet
[0] & 0x20) << 2) | (packet
[1] & 0x7f));
492 y
= (s8
)(((packet
[0] & 0x10) << 3) | (packet
[2] & 0x7f));
493 z
= (packet
[4] & 0x7c) >> 2;
496 * The x and y values tend to be quite large, and when used
497 * alone the trackstick is difficult to use. Scale them down
503 input_report_rel(dev
, REL_X
, x
);
504 input_report_rel(dev
, REL_Y
, -y
);
507 * Most ALPS models report the trackstick buttons in the touchpad
508 * packets, but a few report them here. No reliable way has been
509 * found to differentiate between the models upfront, so we enable
510 * the quirk in response to seeing a button press in the trackstick
513 left
= packet
[3] & 0x01;
514 right
= packet
[3] & 0x02;
515 middle
= packet
[3] & 0x04;
517 if (!(priv
->quirks
& ALPS_QUIRK_TRACKSTICK_BUTTONS
) &&
518 (left
|| right
|| middle
))
519 priv
->quirks
|= ALPS_QUIRK_TRACKSTICK_BUTTONS
;
521 if (priv
->quirks
& ALPS_QUIRK_TRACKSTICK_BUTTONS
) {
522 input_report_key(dev
, BTN_LEFT
, left
);
523 input_report_key(dev
, BTN_RIGHT
, right
);
524 input_report_key(dev
, BTN_MIDDLE
, middle
);
531 static void alps_decode_buttons_v3(struct alps_fields
*f
, unsigned char *p
)
533 f
->left
= !!(p
[3] & 0x01);
534 f
->right
= !!(p
[3] & 0x02);
535 f
->middle
= !!(p
[3] & 0x04);
537 f
->ts_left
= !!(p
[3] & 0x10);
538 f
->ts_right
= !!(p
[3] & 0x20);
539 f
->ts_middle
= !!(p
[3] & 0x40);
542 static int alps_decode_pinnacle(struct alps_fields
*f
, unsigned char *p
,
543 struct psmouse
*psmouse
)
545 f
->first_mp
= !!(p
[4] & 0x40);
546 f
->is_mp
= !!(p
[0] & 0x40);
548 f
->fingers
= (p
[5] & 0x3) + 1;
549 f
->x_map
= ((p
[4] & 0x7e) << 8) |
550 ((p
[1] & 0x7f) << 2) |
551 ((p
[0] & 0x30) >> 4);
552 f
->y_map
= ((p
[3] & 0x70) << 4) |
553 ((p
[2] & 0x7f) << 1) |
556 f
->st
.x
= ((p
[1] & 0x7f) << 4) | ((p
[4] & 0x30) >> 2) |
557 ((p
[0] & 0x30) >> 4);
558 f
->st
.y
= ((p
[2] & 0x7f) << 4) | (p
[4] & 0x0f);
559 f
->pressure
= p
[5] & 0x7f;
561 alps_decode_buttons_v3(f
, p
);
566 static int alps_decode_rushmore(struct alps_fields
*f
, unsigned char *p
,
567 struct psmouse
*psmouse
)
569 alps_decode_pinnacle(f
, p
, psmouse
);
571 /* Rushmore's packet decode has a bit difference with Pinnacle's */
572 f
->is_mp
= !!(p
[5] & 0x40);
573 f
->fingers
= max((p
[5] & 0x3), ((p
[5] >> 2) & 0x3)) + 1;
574 f
->x_map
|= (p
[5] & 0x10) << 11;
575 f
->y_map
|= (p
[5] & 0x20) << 6;
580 static int alps_decode_dolphin(struct alps_fields
*f
, unsigned char *p
,
581 struct psmouse
*psmouse
)
584 struct alps_data
*priv
= psmouse
->private;
586 f
->first_mp
= !!(p
[0] & 0x02);
587 f
->is_mp
= !!(p
[0] & 0x20);
590 f
->st
.x
= ((p
[1] & 0x7f) | ((p
[4] & 0x0f) << 7));
591 f
->st
.y
= ((p
[2] & 0x7f) | ((p
[4] & 0xf0) << 3));
592 f
->pressure
= (p
[0] & 4) ? 0 : p
[5] & 0x7f;
593 alps_decode_buttons_v3(f
, p
);
595 f
->fingers
= ((p
[0] & 0x6) >> 1 |
598 palm_data
= (p
[1] & 0x7f) |
599 ((p
[2] & 0x7f) << 7) |
600 ((p
[4] & 0x7f) << 14) |
601 ((p
[5] & 0x7f) << 21) |
602 ((p
[3] & 0x07) << 28) |
603 (((u64
)p
[3] & 0x70) << 27) |
604 (((u64
)p
[0] & 0x01) << 34);
606 /* Y-profile is stored in P(0) to p(n-1), n = y_bits; */
607 f
->y_map
= palm_data
& (BIT(priv
->y_bits
) - 1);
609 /* X-profile is stored in p(n) to p(n+m-1), m = x_bits; */
610 f
->x_map
= (palm_data
>> priv
->y_bits
) &
611 (BIT(priv
->x_bits
) - 1);
617 static void alps_process_touchpad_packet_v3_v5(struct psmouse
*psmouse
)
619 struct alps_data
*priv
= psmouse
->private;
620 unsigned char *packet
= psmouse
->packet
;
621 struct input_dev
*dev2
= priv
->dev2
;
622 struct alps_fields
*f
= &priv
->f
;
625 memset(f
, 0, sizeof(*f
));
627 priv
->decode_fields(f
, packet
, psmouse
);
630 * There's no single feature of touchpad position and bitmap packets
631 * that can be used to distinguish between them. We rely on the fact
632 * that a bitmap packet should always follow a position packet with
633 * bit 6 of packet[4] set.
635 if (priv
->multi_packet
) {
637 * Sometimes a position packet will indicate a multi-packet
638 * sequence, but then what follows is another position
639 * packet. Check for this, and when it happens process the
640 * position packet as usual.
643 fingers
= f
->fingers
;
644 if (priv
->proto_version
== ALPS_PROTO_V3
) {
645 if (alps_process_bitmap(priv
, f
) == 0)
646 fingers
= 0; /* Use st data */
648 /* Now process position packet */
649 priv
->decode_fields(f
, priv
->multi_data
,
653 * Because Dolphin uses position packet's
654 * coordinate data as Pt1 and uses it to
655 * calculate Pt2, so we need to do position
656 * packet decode first.
658 priv
->decode_fields(f
, priv
->multi_data
,
662 * Since Dolphin's finger number is reliable,
663 * there is no need to compare with bmap_fn.
665 alps_process_bitmap_dolphin(priv
, f
);
668 priv
->multi_packet
= 0;
673 * Bit 6 of byte 0 is not usually set in position packets. The only
674 * times it seems to be set is in situations where the data is
675 * suspect anyway, e.g. a palm resting flat on the touchpad. Given
676 * this combined with the fact that this bit is useful for filtering
677 * out misidentified bitmap packets, we reject anything with this
683 if (!priv
->multi_packet
&& f
->first_mp
) {
684 priv
->multi_packet
= 1;
685 memcpy(priv
->multi_data
, packet
, sizeof(priv
->multi_data
));
689 priv
->multi_packet
= 0;
692 * Sometimes the hardware sends a single packet with z = 0
693 * in the middle of a stream. Real releases generate packets
694 * with x, y, and z all zero, so these seem to be flukes.
697 if (f
->st
.x
&& f
->st
.y
&& !f
->pressure
)
700 alps_report_semi_mt_data(psmouse
, fingers
);
702 if (!(priv
->quirks
& ALPS_QUIRK_TRACKSTICK_BUTTONS
)) {
703 input_report_key(dev2
, BTN_LEFT
, f
->ts_left
);
704 input_report_key(dev2
, BTN_RIGHT
, f
->ts_right
);
705 input_report_key(dev2
, BTN_MIDDLE
, f
->ts_middle
);
710 static void alps_process_packet_v3(struct psmouse
*psmouse
)
712 unsigned char *packet
= psmouse
->packet
;
715 * v3 protocol packets come in three types, two representing
716 * touchpad data and one representing trackstick data.
717 * Trackstick packets seem to be distinguished by always
718 * having 0x3f in the last byte. This value has never been
719 * observed in the last byte of either of the other types
722 if (packet
[5] == 0x3f) {
723 alps_process_trackstick_packet_v3(psmouse
);
727 alps_process_touchpad_packet_v3_v5(psmouse
);
730 static void alps_process_packet_v6(struct psmouse
*psmouse
)
732 struct alps_data
*priv
= psmouse
->private;
733 unsigned char *packet
= psmouse
->packet
;
734 struct input_dev
*dev
= psmouse
->dev
;
735 struct input_dev
*dev2
= priv
->dev2
;
736 int x
, y
, z
, left
, right
, middle
;
739 * We can use Byte5 to distinguish if the packet is from Touchpad
744 if (packet
[5] == 0x7F) {
745 /* It should be a DualPoint when received Trackpoint packet */
746 if (!(priv
->flags
& ALPS_DUALPOINT
))
749 /* Trackpoint packet */
750 x
= packet
[1] | ((packet
[3] & 0x20) << 2);
751 y
= packet
[2] | ((packet
[3] & 0x40) << 1);
753 left
= packet
[3] & 0x01;
754 right
= packet
[3] & 0x02;
755 middle
= packet
[3] & 0x04;
757 /* To prevent the cursor jump when finger lifted */
758 if (x
== 0x7F && y
== 0x7F && z
== 0x7F)
761 /* Divide 4 since trackpoint's speed is too fast */
762 input_report_rel(dev2
, REL_X
, (char)x
/ 4);
763 input_report_rel(dev2
, REL_Y
, -((char)y
/ 4));
765 input_report_key(dev2
, BTN_LEFT
, left
);
766 input_report_key(dev2
, BTN_RIGHT
, right
);
767 input_report_key(dev2
, BTN_MIDDLE
, middle
);
773 /* Touchpad packet */
774 x
= packet
[1] | ((packet
[3] & 0x78) << 4);
775 y
= packet
[2] | ((packet
[4] & 0x78) << 4);
777 left
= packet
[3] & 0x01;
778 right
= packet
[3] & 0x02;
781 input_report_key(dev
, BTN_TOUCH
, 1);
783 input_report_key(dev
, BTN_TOUCH
, 0);
786 input_report_abs(dev
, ABS_X
, x
);
787 input_report_abs(dev
, ABS_Y
, y
);
790 input_report_abs(dev
, ABS_PRESSURE
, z
);
791 input_report_key(dev
, BTN_TOOL_FINGER
, z
> 0);
793 /* v6 touchpad does not have middle button */
794 input_report_key(dev
, BTN_LEFT
, left
);
795 input_report_key(dev
, BTN_RIGHT
, right
);
800 static void alps_process_packet_v4(struct psmouse
*psmouse
)
802 struct alps_data
*priv
= psmouse
->private;
803 unsigned char *packet
= psmouse
->packet
;
804 struct alps_fields
*f
= &priv
->f
;
808 * v4 has a 6-byte encoding for bitmap data, but this data is
809 * broken up between 3 normal packets. Use priv->multi_packet to
810 * track our position in the bitmap packet.
812 if (packet
[6] & 0x40) {
813 /* sync, reset position */
814 priv
->multi_packet
= 0;
817 if (WARN_ON_ONCE(priv
->multi_packet
> 2))
820 offset
= 2 * priv
->multi_packet
;
821 priv
->multi_data
[offset
] = packet
[6];
822 priv
->multi_data
[offset
+ 1] = packet
[7];
824 if (++priv
->multi_packet
> 2) {
825 priv
->multi_packet
= 0;
827 f
->x_map
= ((priv
->multi_data
[2] & 0x1f) << 10) |
828 ((priv
->multi_data
[3] & 0x60) << 3) |
829 ((priv
->multi_data
[0] & 0x3f) << 2) |
830 ((priv
->multi_data
[1] & 0x60) >> 5);
831 f
->y_map
= ((priv
->multi_data
[5] & 0x01) << 10) |
832 ((priv
->multi_data
[3] & 0x1f) << 5) |
833 (priv
->multi_data
[1] & 0x1f);
835 f
->fingers
= alps_process_bitmap(priv
, f
);
838 f
->left
= !!(packet
[4] & 0x01);
839 f
->right
= !!(packet
[4] & 0x02);
841 f
->st
.x
= ((packet
[1] & 0x7f) << 4) | ((packet
[3] & 0x30) >> 2) |
842 ((packet
[0] & 0x30) >> 4);
843 f
->st
.y
= ((packet
[2] & 0x7f) << 4) | (packet
[3] & 0x0f);
844 f
->pressure
= packet
[5] & 0x7f;
846 alps_report_semi_mt_data(psmouse
, f
->fingers
);
849 static bool alps_is_valid_package_v7(struct psmouse
*psmouse
)
851 switch (psmouse
->pktcnt
) {
853 return (psmouse
->packet
[2] & 0x40) == 0x40;
855 return (psmouse
->packet
[3] & 0x48) == 0x48;
857 return (psmouse
->packet
[5] & 0x40) == 0x00;
862 static unsigned char alps_get_packet_id_v7(char *byte
)
864 unsigned char packet_id
;
867 packet_id
= V7_PACKET_ID_TWO
;
868 else if (byte
[4] & 0x01)
869 packet_id
= V7_PACKET_ID_MULTI
;
870 else if ((byte
[0] & 0x10) && !(byte
[4] & 0x43))
871 packet_id
= V7_PACKET_ID_NEW
;
872 else if (byte
[1] == 0x00 && byte
[4] == 0x00)
873 packet_id
= V7_PACKET_ID_IDLE
;
875 packet_id
= V7_PACKET_ID_UNKNOWN
;
880 static void alps_get_finger_coordinate_v7(struct input_mt_pos
*mt
,
882 unsigned char pkt_id
)
884 mt
[0].x
= ((pkt
[2] & 0x80) << 4);
885 mt
[0].x
|= ((pkt
[2] & 0x3F) << 5);
886 mt
[0].x
|= ((pkt
[3] & 0x30) >> 1);
887 mt
[0].x
|= (pkt
[3] & 0x07);
888 mt
[0].y
= (pkt
[1] << 3) | (pkt
[0] & 0x07);
890 mt
[1].x
= ((pkt
[3] & 0x80) << 4);
891 mt
[1].x
|= ((pkt
[4] & 0x80) << 3);
892 mt
[1].x
|= ((pkt
[4] & 0x3F) << 4);
893 mt
[1].y
= ((pkt
[5] & 0x80) << 3);
894 mt
[1].y
|= ((pkt
[5] & 0x3F) << 4);
897 case V7_PACKET_ID_TWO
:
902 case V7_PACKET_ID_MULTI
:
905 mt
[1].y
|= ((pkt
[4] & 0x02) << 4);
909 case V7_PACKET_ID_NEW
:
911 mt
[1].x
|= (pkt
[0] & 0x20);
916 mt
[0].y
= 0x7FF - mt
[0].y
;
917 mt
[1].y
= 0x7FF - mt
[1].y
;
920 static int alps_get_mt_count(struct input_mt_pos
*mt
)
924 for (i
= 0; i
< MAX_TOUCHES
&& mt
[i
].x
!= 0 && mt
[i
].y
!= 0; i
++)
930 static int alps_decode_packet_v7(struct alps_fields
*f
,
932 struct psmouse
*psmouse
)
934 unsigned char pkt_id
;
936 pkt_id
= alps_get_packet_id_v7(p
);
937 if (pkt_id
== V7_PACKET_ID_IDLE
)
939 if (pkt_id
== V7_PACKET_ID_UNKNOWN
)
942 alps_get_finger_coordinate_v7(f
->mt
, p
, pkt_id
);
944 if (pkt_id
== V7_PACKET_ID_TWO
|| pkt_id
== V7_PACKET_ID_MULTI
) {
945 f
->left
= (p
[0] & 0x80) >> 7;
946 f
->right
= (p
[0] & 0x20) >> 5;
947 f
->middle
= (p
[0] & 0x10) >> 4;
950 if (pkt_id
== V7_PACKET_ID_TWO
)
951 f
->fingers
= alps_get_mt_count(f
->mt
);
952 else if (pkt_id
== V7_PACKET_ID_MULTI
)
953 f
->fingers
= 3 + (p
[5] & 0x03);
958 static void alps_process_trackstick_packet_v7(struct psmouse
*psmouse
)
960 struct alps_data
*priv
= psmouse
->private;
961 unsigned char *packet
= psmouse
->packet
;
962 struct input_dev
*dev2
= priv
->dev2
;
963 int x
, y
, z
, left
, right
, middle
;
966 * b7 b6 b5 b4 b3 b2 b1 b0
967 * Byte0 0 1 0 0 1 0 0 0
968 * Byte1 1 1 * * 1 M R L
969 * Byte2 X7 1 X5 X4 X3 X2 X1 X0
970 * Byte3 Z6 1 Y6 X6 1 Y2 Y1 Y0
971 * Byte4 Y7 0 Y5 Y4 Y3 1 1 0
972 * Byte5 T&P 0 Z5 Z4 Z3 Z2 Z1 Z0
973 * M / R / L: Middle / Right / Left button
976 x
= ((packet
[2] & 0xbf)) | ((packet
[3] & 0x10) << 2);
977 y
= (packet
[3] & 0x07) | (packet
[4] & 0xb8) |
978 ((packet
[3] & 0x20) << 1);
979 z
= (packet
[5] & 0x3f) | ((packet
[3] & 0x80) >> 1);
981 left
= (packet
[1] & 0x01);
982 right
= (packet
[1] & 0x02) >> 1;
983 middle
= (packet
[1] & 0x04) >> 2;
985 /* Divide 2 since trackpoint's speed is too fast */
986 input_report_rel(dev2
, REL_X
, (char)x
/ 2);
987 input_report_rel(dev2
, REL_Y
, -((char)y
/ 2));
989 input_report_key(dev2
, BTN_LEFT
, left
);
990 input_report_key(dev2
, BTN_RIGHT
, right
);
991 input_report_key(dev2
, BTN_MIDDLE
, middle
);
996 static void alps_process_touchpad_packet_v7(struct psmouse
*psmouse
)
998 struct alps_data
*priv
= psmouse
->private;
999 struct input_dev
*dev
= psmouse
->dev
;
1000 struct alps_fields
*f
= &priv
->f
;
1002 memset(f
, 0, sizeof(*f
));
1004 if (priv
->decode_fields(f
, psmouse
->packet
, psmouse
))
1007 alps_report_mt_data(psmouse
, alps_get_mt_count(f
->mt
));
1009 input_mt_report_finger_count(dev
, f
->fingers
);
1011 input_report_key(dev
, BTN_LEFT
, f
->left
);
1012 input_report_key(dev
, BTN_RIGHT
, f
->right
);
1013 input_report_key(dev
, BTN_MIDDLE
, f
->middle
);
1018 static void alps_process_packet_v7(struct psmouse
*psmouse
)
1020 unsigned char *packet
= psmouse
->packet
;
1022 if (packet
[0] == 0x48 && (packet
[4] & 0x47) == 0x06)
1023 alps_process_trackstick_packet_v7(psmouse
);
1025 alps_process_touchpad_packet_v7(psmouse
);
1028 static void alps_report_bare_ps2_packet(struct psmouse
*psmouse
,
1029 unsigned char packet
[],
1030 bool report_buttons
)
1032 struct alps_data
*priv
= psmouse
->private;
1033 struct input_dev
*dev2
= priv
->dev2
;
1036 alps_report_buttons(psmouse
, dev2
, psmouse
->dev
,
1037 packet
[0] & 1, packet
[0] & 2, packet
[0] & 4);
1039 input_report_rel(dev2
, REL_X
,
1040 packet
[1] ? packet
[1] - ((packet
[0] << 4) & 0x100) : 0);
1041 input_report_rel(dev2
, REL_Y
,
1042 packet
[2] ? ((packet
[0] << 3) & 0x100) - packet
[2] : 0);
1047 static psmouse_ret_t
alps_handle_interleaved_ps2(struct psmouse
*psmouse
)
1049 struct alps_data
*priv
= psmouse
->private;
1051 if (psmouse
->pktcnt
< 6)
1052 return PSMOUSE_GOOD_DATA
;
1054 if (psmouse
->pktcnt
== 6) {
1056 * Start a timer to flush the packet if it ends up last
1057 * 6-byte packet in the stream. Timer needs to fire
1058 * psmouse core times out itself. 20 ms should be enough
1059 * to decide if we are getting more data or not.
1061 mod_timer(&priv
->timer
, jiffies
+ msecs_to_jiffies(20));
1062 return PSMOUSE_GOOD_DATA
;
1065 del_timer(&priv
->timer
);
1067 if (psmouse
->packet
[6] & 0x80) {
1070 * Highest bit is set - that means we either had
1071 * complete ALPS packet and this is start of the
1072 * next packet or we got garbage.
1075 if (((psmouse
->packet
[3] |
1076 psmouse
->packet
[4] |
1077 psmouse
->packet
[5]) & 0x80) ||
1078 (!alps_is_valid_first_byte(priv
, psmouse
->packet
[6]))) {
1079 psmouse_dbg(psmouse
,
1080 "refusing packet %4ph (suspected interleaved ps/2)\n",
1081 psmouse
->packet
+ 3);
1082 return PSMOUSE_BAD_DATA
;
1085 priv
->process_packet(psmouse
);
1087 /* Continue with the next packet */
1088 psmouse
->packet
[0] = psmouse
->packet
[6];
1089 psmouse
->pktcnt
= 1;
1094 * High bit is 0 - that means that we indeed got a PS/2
1095 * packet in the middle of ALPS packet.
1097 * There is also possibility that we got 6-byte ALPS
1098 * packet followed by 3-byte packet from trackpoint. We
1099 * can not distinguish between these 2 scenarios but
1100 * because the latter is unlikely to happen in course of
1101 * normal operation (user would need to press all
1102 * buttons on the pad and start moving trackpoint
1103 * without touching the pad surface) we assume former.
1104 * Even if we are wrong the wost thing that would happen
1105 * the cursor would jump but we should not get protocol
1106 * de-synchronization.
1109 alps_report_bare_ps2_packet(psmouse
, &psmouse
->packet
[3],
1113 * Continue with the standard ALPS protocol handling,
1114 * but make sure we won't process it as an interleaved
1115 * packet again, which may happen if all buttons are
1116 * pressed. To avoid this let's reset the 4th bit which
1119 psmouse
->packet
[3] = psmouse
->packet
[6] & 0xf7;
1120 psmouse
->pktcnt
= 4;
1123 return PSMOUSE_GOOD_DATA
;
1126 static void alps_flush_packet(unsigned long data
)
1128 struct psmouse
*psmouse
= (struct psmouse
*)data
;
1129 struct alps_data
*priv
= psmouse
->private;
1131 serio_pause_rx(psmouse
->ps2dev
.serio
);
1133 if (psmouse
->pktcnt
== psmouse
->pktsize
) {
1136 * We did not any more data in reasonable amount of time.
1137 * Validate the last 3 bytes and process as a standard
1140 if ((psmouse
->packet
[3] |
1141 psmouse
->packet
[4] |
1142 psmouse
->packet
[5]) & 0x80) {
1143 psmouse_dbg(psmouse
,
1144 "refusing packet %3ph (suspected interleaved ps/2)\n",
1145 psmouse
->packet
+ 3);
1147 priv
->process_packet(psmouse
);
1149 psmouse
->pktcnt
= 0;
1152 serio_continue_rx(psmouse
->ps2dev
.serio
);
1155 static psmouse_ret_t
alps_process_byte(struct psmouse
*psmouse
)
1157 struct alps_data
*priv
= psmouse
->private;
1160 * Check if we are dealing with a bare PS/2 packet, presumably from
1161 * a device connected to the external PS/2 port. Because bare PS/2
1162 * protocol does not have enough constant bits to self-synchronize
1163 * properly we only do this if the device is fully synchronized.
1165 if (!psmouse
->out_of_sync_cnt
&& (psmouse
->packet
[0] & 0xc8) == 0x08) {
1166 if (psmouse
->pktcnt
== 3) {
1167 alps_report_bare_ps2_packet(psmouse
, psmouse
->packet
,
1169 return PSMOUSE_FULL_PACKET
;
1171 return PSMOUSE_GOOD_DATA
;
1174 /* Check for PS/2 packet stuffed in the middle of ALPS packet. */
1176 if ((priv
->flags
& ALPS_PS2_INTERLEAVED
) &&
1177 psmouse
->pktcnt
>= 4 && (psmouse
->packet
[3] & 0x0f) == 0x0f) {
1178 return alps_handle_interleaved_ps2(psmouse
);
1181 if (!alps_is_valid_first_byte(priv
, psmouse
->packet
[0])) {
1182 psmouse_dbg(psmouse
,
1183 "refusing packet[0] = %x (mask0 = %x, byte0 = %x)\n",
1184 psmouse
->packet
[0], priv
->mask0
, priv
->byte0
);
1185 return PSMOUSE_BAD_DATA
;
1188 /* Bytes 2 - pktsize should have 0 in the highest bit */
1189 if ((priv
->proto_version
< ALPS_PROTO_V5
) &&
1190 psmouse
->pktcnt
>= 2 && psmouse
->pktcnt
<= psmouse
->pktsize
&&
1191 (psmouse
->packet
[psmouse
->pktcnt
- 1] & 0x80)) {
1192 psmouse_dbg(psmouse
, "refusing packet[%i] = %x\n",
1193 psmouse
->pktcnt
- 1,
1194 psmouse
->packet
[psmouse
->pktcnt
- 1]);
1195 return PSMOUSE_BAD_DATA
;
1198 if (priv
->proto_version
== ALPS_PROTO_V7
&&
1199 !alps_is_valid_package_v7(psmouse
)) {
1200 psmouse_dbg(psmouse
, "refusing packet[%i] = %x\n",
1201 psmouse
->pktcnt
- 1,
1202 psmouse
->packet
[psmouse
->pktcnt
- 1]);
1203 return PSMOUSE_BAD_DATA
;
1206 if (psmouse
->pktcnt
== psmouse
->pktsize
) {
1207 priv
->process_packet(psmouse
);
1208 return PSMOUSE_FULL_PACKET
;
1211 return PSMOUSE_GOOD_DATA
;
1214 static int alps_command_mode_send_nibble(struct psmouse
*psmouse
, int nibble
)
1216 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1217 struct alps_data
*priv
= psmouse
->private;
1219 unsigned char *param
;
1220 unsigned char dummy
[4];
1222 BUG_ON(nibble
> 0xf);
1224 command
= priv
->nibble_commands
[nibble
].command
;
1225 param
= (command
& 0x0f00) ?
1226 dummy
: (unsigned char *)&priv
->nibble_commands
[nibble
].data
;
1228 if (ps2_command(ps2dev
, param
, command
))
1234 static int alps_command_mode_set_addr(struct psmouse
*psmouse
, int addr
)
1236 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1237 struct alps_data
*priv
= psmouse
->private;
1240 if (ps2_command(ps2dev
, NULL
, priv
->addr_command
))
1243 for (i
= 12; i
>= 0; i
-= 4) {
1244 nibble
= (addr
>> i
) & 0xf;
1245 if (alps_command_mode_send_nibble(psmouse
, nibble
))
1252 static int __alps_command_mode_read_reg(struct psmouse
*psmouse
, int addr
)
1254 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1255 unsigned char param
[4];
1257 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
1261 * The address being read is returned in the first two bytes
1262 * of the result. Check that this address matches the expected
1265 if (addr
!= ((param
[0] << 8) | param
[1]))
1271 static int alps_command_mode_read_reg(struct psmouse
*psmouse
, int addr
)
1273 if (alps_command_mode_set_addr(psmouse
, addr
))
1275 return __alps_command_mode_read_reg(psmouse
, addr
);
1278 static int __alps_command_mode_write_reg(struct psmouse
*psmouse
, u8 value
)
1280 if (alps_command_mode_send_nibble(psmouse
, (value
>> 4) & 0xf))
1282 if (alps_command_mode_send_nibble(psmouse
, value
& 0xf))
1287 static int alps_command_mode_write_reg(struct psmouse
*psmouse
, int addr
,
1290 if (alps_command_mode_set_addr(psmouse
, addr
))
1292 return __alps_command_mode_write_reg(psmouse
, value
);
1295 static int alps_rpt_cmd(struct psmouse
*psmouse
, int init_command
,
1296 int repeated_command
, unsigned char *param
)
1298 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1301 if (init_command
&& ps2_command(ps2dev
, param
, init_command
))
1304 if (ps2_command(ps2dev
, NULL
, repeated_command
) ||
1305 ps2_command(ps2dev
, NULL
, repeated_command
) ||
1306 ps2_command(ps2dev
, NULL
, repeated_command
))
1309 param
[0] = param
[1] = param
[2] = 0xff;
1310 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
1313 psmouse_dbg(psmouse
, "%2.2X report: %3ph\n",
1314 repeated_command
, param
);
1318 static bool alps_check_valid_firmware_id(unsigned char id
[])
1323 if (id
[0] == 0x88 &&
1326 (id
[1] & 0xf0) == 0xb0 ||
1327 (id
[1] & 0xf0) == 0xc0)) {
1334 static int alps_enter_command_mode(struct psmouse
*psmouse
)
1336 unsigned char param
[4];
1338 if (alps_rpt_cmd(psmouse
, 0, PSMOUSE_CMD_RESET_WRAP
, param
)) {
1339 psmouse_err(psmouse
, "failed to enter command mode\n");
1343 if (!alps_check_valid_firmware_id(param
)) {
1344 psmouse_dbg(psmouse
,
1345 "unknown response while entering command mode\n");
1351 static inline int alps_exit_command_mode(struct psmouse
*psmouse
)
1353 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1354 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
))
1360 * For DualPoint devices select the device that should respond to
1361 * subsequent commands. It looks like glidepad is behind stickpointer,
1362 * I'd thought it would be other way around...
1364 static int alps_passthrough_mode_v2(struct psmouse
*psmouse
, bool enable
)
1366 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1367 int cmd
= enable
? PSMOUSE_CMD_SETSCALE21
: PSMOUSE_CMD_SETSCALE11
;
1369 if (ps2_command(ps2dev
, NULL
, cmd
) ||
1370 ps2_command(ps2dev
, NULL
, cmd
) ||
1371 ps2_command(ps2dev
, NULL
, cmd
) ||
1372 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
))
1375 /* we may get 3 more bytes, just ignore them */
1376 ps2_drain(ps2dev
, 3, 100);
1381 static int alps_absolute_mode_v1_v2(struct psmouse
*psmouse
)
1383 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1385 /* Try ALPS magic knock - 4 disable before enable */
1386 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1387 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1388 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1389 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1390 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
))
1394 * Switch mouse to poll (remote) mode so motion data will not
1397 return ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETPOLL
);
1400 static int alps_monitor_mode_send_word(struct psmouse
*psmouse
, u16 word
)
1405 * b0-b11 are valid bits, send sequence is inverse.
1406 * e.g. when word = 0x0123, nibble send sequence is 3, 2, 1
1408 for (i
= 0; i
<= 8; i
+= 4) {
1409 nibble
= (word
>> i
) & 0xf;
1410 if (alps_command_mode_send_nibble(psmouse
, nibble
))
1417 static int alps_monitor_mode_write_reg(struct psmouse
*psmouse
,
1418 u16 addr
, u16 value
)
1420 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1422 /* 0x0A0 is the command to write the word */
1423 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
) ||
1424 alps_monitor_mode_send_word(psmouse
, 0x0A0) ||
1425 alps_monitor_mode_send_word(psmouse
, addr
) ||
1426 alps_monitor_mode_send_word(psmouse
, value
) ||
1427 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
))
1433 static int alps_monitor_mode(struct psmouse
*psmouse
, bool enable
)
1435 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1438 /* EC E9 F5 F5 E7 E6 E7 E9 to enter monitor mode */
1439 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_RESET_WRAP
) ||
1440 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_GETINFO
) ||
1441 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1442 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1443 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE21
) ||
1444 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1445 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE21
) ||
1446 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_GETINFO
))
1449 /* EC to exit monitor mode */
1450 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_RESET_WRAP
))
1457 static int alps_absolute_mode_v6(struct psmouse
*psmouse
)
1459 u16 reg_val
= 0x181;
1462 /* enter monitor mode, to write the register */
1463 if (alps_monitor_mode(psmouse
, true))
1466 ret
= alps_monitor_mode_write_reg(psmouse
, 0x000, reg_val
);
1468 if (alps_monitor_mode(psmouse
, false))
1474 static int alps_get_status(struct psmouse
*psmouse
, char *param
)
1476 /* Get status: 0xF5 0xF5 0xF5 0xE9 */
1477 if (alps_rpt_cmd(psmouse
, 0, PSMOUSE_CMD_DISABLE
, param
))
1484 * Turn touchpad tapping on or off. The sequences are:
1485 * 0xE9 0xF5 0xF5 0xF3 0x0A to enable,
1486 * 0xE9 0xF5 0xF5 0xE8 0x00 to disable.
1487 * My guess that 0xE9 (GetInfo) is here as a sync point.
1488 * For models that also have stickpointer (DualPoints) its tapping
1489 * is controlled separately (0xE6 0xE6 0xE6 0xF3 0x14|0x0A) but
1490 * we don't fiddle with it.
1492 static int alps_tap_mode(struct psmouse
*psmouse
, int enable
)
1494 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1495 int cmd
= enable
? PSMOUSE_CMD_SETRATE
: PSMOUSE_CMD_SETRES
;
1496 unsigned char tap_arg
= enable
? 0x0A : 0x00;
1497 unsigned char param
[4];
1499 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
) ||
1500 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1501 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_DISABLE
) ||
1502 ps2_command(ps2dev
, &tap_arg
, cmd
))
1505 if (alps_get_status(psmouse
, param
))
1512 * alps_poll() - poll the touchpad for current motion packet.
1515 static int alps_poll(struct psmouse
*psmouse
)
1517 struct alps_data
*priv
= psmouse
->private;
1518 unsigned char buf
[sizeof(psmouse
->packet
)];
1521 if (priv
->flags
& ALPS_PASS
)
1522 alps_passthrough_mode_v2(psmouse
, true);
1524 poll_failed
= ps2_command(&psmouse
->ps2dev
, buf
,
1525 PSMOUSE_CMD_POLL
| (psmouse
->pktsize
<< 8)) < 0;
1527 if (priv
->flags
& ALPS_PASS
)
1528 alps_passthrough_mode_v2(psmouse
, false);
1530 if (poll_failed
|| (buf
[0] & priv
->mask0
) != priv
->byte0
)
1533 if ((psmouse
->badbyte
& 0xc8) == 0x08) {
1535 * Poll the track stick ...
1537 if (ps2_command(&psmouse
->ps2dev
, buf
, PSMOUSE_CMD_POLL
| (3 << 8)))
1541 memcpy(psmouse
->packet
, buf
, sizeof(buf
));
1545 static int alps_hw_init_v1_v2(struct psmouse
*psmouse
)
1547 struct alps_data
*priv
= psmouse
->private;
1549 if ((priv
->flags
& ALPS_PASS
) &&
1550 alps_passthrough_mode_v2(psmouse
, true)) {
1554 if (alps_tap_mode(psmouse
, true)) {
1555 psmouse_warn(psmouse
, "Failed to enable hardware tapping\n");
1559 if (alps_absolute_mode_v1_v2(psmouse
)) {
1560 psmouse_err(psmouse
, "Failed to enable absolute mode\n");
1564 if ((priv
->flags
& ALPS_PASS
) &&
1565 alps_passthrough_mode_v2(psmouse
, false)) {
1569 /* ALPS needs stream mode, otherwise it won't report any data */
1570 if (ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
)) {
1571 psmouse_err(psmouse
, "Failed to enable stream mode\n");
1578 static int alps_hw_init_v6(struct psmouse
*psmouse
)
1580 unsigned char param
[2] = {0xC8, 0x14};
1582 /* Enter passthrough mode to let trackpoint enter 6byte raw mode */
1583 if (alps_passthrough_mode_v2(psmouse
, true))
1586 if (ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1587 ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1588 ps2_command(&psmouse
->ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1589 ps2_command(&psmouse
->ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
) ||
1590 ps2_command(&psmouse
->ps2dev
, ¶m
[1], PSMOUSE_CMD_SETRATE
))
1593 if (alps_passthrough_mode_v2(psmouse
, false))
1596 if (alps_absolute_mode_v6(psmouse
)) {
1597 psmouse_err(psmouse
, "Failed to enable absolute mode\n");
1605 * Enable or disable passthrough mode to the trackstick.
1607 static int alps_passthrough_mode_v3(struct psmouse
*psmouse
,
1608 int reg_base
, bool enable
)
1610 int reg_val
, ret
= -1;
1612 if (alps_enter_command_mode(psmouse
))
1615 reg_val
= alps_command_mode_read_reg(psmouse
, reg_base
+ 0x0008);
1624 ret
= __alps_command_mode_write_reg(psmouse
, reg_val
);
1627 if (alps_exit_command_mode(psmouse
))
1632 /* Must be in command mode when calling this function */
1633 static int alps_absolute_mode_v3(struct psmouse
*psmouse
)
1637 reg_val
= alps_command_mode_read_reg(psmouse
, 0x0004);
1642 if (__alps_command_mode_write_reg(psmouse
, reg_val
))
1648 static int alps_probe_trackstick_v3(struct psmouse
*psmouse
, int reg_base
)
1650 int ret
= -EIO
, reg_val
;
1652 if (alps_enter_command_mode(psmouse
))
1655 reg_val
= alps_command_mode_read_reg(psmouse
, reg_base
+ 0x08);
1659 /* bit 7: trackstick is present */
1660 ret
= reg_val
& 0x80 ? 0 : -ENODEV
;
1663 alps_exit_command_mode(psmouse
);
1667 static int alps_setup_trackstick_v3(struct psmouse
*psmouse
, int reg_base
)
1669 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1671 unsigned char param
[4];
1673 if (alps_passthrough_mode_v3(psmouse
, reg_base
, true))
1677 * E7 report for the trackstick
1679 * There have been reports of failures to seem to trace back
1680 * to the above trackstick check failing. When these occur
1681 * this E7 report fails, so when that happens we continue
1682 * with the assumption that there isn't a trackstick after
1685 if (alps_rpt_cmd(psmouse
, 0, PSMOUSE_CMD_SETSCALE21
, param
)) {
1686 psmouse_warn(psmouse
, "trackstick E7 report failed\n");
1689 psmouse_dbg(psmouse
, "trackstick E7 report: %3ph\n", param
);
1692 * Not sure what this does, but it is absolutely
1693 * essential. Without it, the touchpad does not
1694 * work at all and the trackstick just emits normal
1697 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1698 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1699 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSCALE11
) ||
1700 alps_command_mode_send_nibble(psmouse
, 0x9) ||
1701 alps_command_mode_send_nibble(psmouse
, 0x4)) {
1702 psmouse_err(psmouse
,
1703 "Error sending magic E6 sequence\n");
1709 * This ensures the trackstick packets are in the format
1710 * supported by this driver. If bit 1 isn't set the packet
1711 * format is different.
1713 if (alps_enter_command_mode(psmouse
) ||
1714 alps_command_mode_write_reg(psmouse
,
1715 reg_base
+ 0x08, 0x82) ||
1716 alps_exit_command_mode(psmouse
))
1721 if (alps_passthrough_mode_v3(psmouse
, reg_base
, false))
1727 static int alps_hw_init_v3(struct psmouse
*psmouse
)
1729 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1731 unsigned char param
[4];
1733 reg_val
= alps_probe_trackstick_v3(psmouse
, ALPS_REG_BASE_PINNACLE
);
1734 if (reg_val
== -EIO
)
1738 alps_setup_trackstick_v3(psmouse
, ALPS_REG_BASE_PINNACLE
) == -EIO
)
1741 if (alps_enter_command_mode(psmouse
) ||
1742 alps_absolute_mode_v3(psmouse
)) {
1743 psmouse_err(psmouse
, "Failed to enter absolute mode\n");
1747 reg_val
= alps_command_mode_read_reg(psmouse
, 0x0006);
1750 if (__alps_command_mode_write_reg(psmouse
, reg_val
| 0x01))
1753 reg_val
= alps_command_mode_read_reg(psmouse
, 0x0007);
1756 if (__alps_command_mode_write_reg(psmouse
, reg_val
| 0x01))
1759 if (alps_command_mode_read_reg(psmouse
, 0x0144) == -1)
1761 if (__alps_command_mode_write_reg(psmouse
, 0x04))
1764 if (alps_command_mode_read_reg(psmouse
, 0x0159) == -1)
1766 if (__alps_command_mode_write_reg(psmouse
, 0x03))
1769 if (alps_command_mode_read_reg(psmouse
, 0x0163) == -1)
1771 if (alps_command_mode_write_reg(psmouse
, 0x0163, 0x03))
1774 if (alps_command_mode_read_reg(psmouse
, 0x0162) == -1)
1776 if (alps_command_mode_write_reg(psmouse
, 0x0162, 0x04))
1779 alps_exit_command_mode(psmouse
);
1781 /* Set rate and enable data reporting */
1783 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_SETRATE
) ||
1784 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
)) {
1785 psmouse_err(psmouse
, "Failed to enable data reporting\n");
1793 * Leaving the touchpad in command mode will essentially render
1794 * it unusable until the machine reboots, so exit it here just
1797 alps_exit_command_mode(psmouse
);
1801 static int alps_get_v3_v7_resolution(struct psmouse
*psmouse
, int reg_pitch
)
1803 int reg
, x_pitch
, y_pitch
, x_electrode
, y_electrode
, x_phys
, y_phys
;
1804 struct alps_data
*priv
= psmouse
->private;
1806 reg
= alps_command_mode_read_reg(psmouse
, reg_pitch
);
1810 x_pitch
= (char)(reg
<< 4) >> 4; /* sign extend lower 4 bits */
1811 x_pitch
= 50 + 2 * x_pitch
; /* In 0.1 mm units */
1813 y_pitch
= (char)reg
>> 4; /* sign extend upper 4 bits */
1814 y_pitch
= 36 + 2 * y_pitch
; /* In 0.1 mm units */
1816 reg
= alps_command_mode_read_reg(psmouse
, reg_pitch
+ 1);
1820 x_electrode
= (char)(reg
<< 4) >> 4; /* sign extend lower 4 bits */
1821 x_electrode
= 17 + x_electrode
;
1823 y_electrode
= (char)reg
>> 4; /* sign extend upper 4 bits */
1824 y_electrode
= 13 + y_electrode
;
1826 x_phys
= x_pitch
* (x_electrode
- 1); /* In 0.1 mm units */
1827 y_phys
= y_pitch
* (y_electrode
- 1); /* In 0.1 mm units */
1829 priv
->x_res
= priv
->x_max
* 10 / x_phys
; /* units / mm */
1830 priv
->y_res
= priv
->y_max
* 10 / y_phys
; /* units / mm */
1832 psmouse_dbg(psmouse
,
1833 "pitch %dx%d num-electrodes %dx%d physical size %dx%d mm res %dx%d\n",
1834 x_pitch
, y_pitch
, x_electrode
, y_electrode
,
1835 x_phys
/ 10, y_phys
/ 10, priv
->x_res
, priv
->y_res
);
1840 static int alps_hw_init_rushmore_v3(struct psmouse
*psmouse
)
1842 struct alps_data
*priv
= psmouse
->private;
1843 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1844 int reg_val
, ret
= -1;
1846 if (priv
->flags
& ALPS_DUALPOINT
) {
1847 reg_val
= alps_setup_trackstick_v3(psmouse
,
1848 ALPS_REG_BASE_RUSHMORE
);
1849 if (reg_val
== -EIO
)
1851 if (reg_val
== -ENODEV
)
1852 priv
->flags
&= ~ALPS_DUALPOINT
;
1855 if (alps_enter_command_mode(psmouse
) ||
1856 alps_command_mode_read_reg(psmouse
, 0xc2d9) == -1 ||
1857 alps_command_mode_write_reg(psmouse
, 0xc2cb, 0x00))
1860 if (alps_get_v3_v7_resolution(psmouse
, 0xc2da))
1863 reg_val
= alps_command_mode_read_reg(psmouse
, 0xc2c6);
1866 if (__alps_command_mode_write_reg(psmouse
, reg_val
& 0xfd))
1869 if (alps_command_mode_write_reg(psmouse
, 0xc2c9, 0x64))
1872 /* enter absolute mode */
1873 reg_val
= alps_command_mode_read_reg(psmouse
, 0xc2c4);
1876 if (__alps_command_mode_write_reg(psmouse
, reg_val
| 0x02))
1879 alps_exit_command_mode(psmouse
);
1880 return ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
);
1883 alps_exit_command_mode(psmouse
);
1887 /* Must be in command mode when calling this function */
1888 static int alps_absolute_mode_v4(struct psmouse
*psmouse
)
1892 reg_val
= alps_command_mode_read_reg(psmouse
, 0x0004);
1897 if (__alps_command_mode_write_reg(psmouse
, reg_val
))
1903 static int alps_hw_init_v4(struct psmouse
*psmouse
)
1905 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1906 unsigned char param
[4];
1908 if (alps_enter_command_mode(psmouse
))
1911 if (alps_absolute_mode_v4(psmouse
)) {
1912 psmouse_err(psmouse
, "Failed to enter absolute mode\n");
1916 if (alps_command_mode_write_reg(psmouse
, 0x0007, 0x8c))
1919 if (alps_command_mode_write_reg(psmouse
, 0x0149, 0x03))
1922 if (alps_command_mode_write_reg(psmouse
, 0x0160, 0x03))
1925 if (alps_command_mode_write_reg(psmouse
, 0x017f, 0x15))
1928 if (alps_command_mode_write_reg(psmouse
, 0x0151, 0x01))
1931 if (alps_command_mode_write_reg(psmouse
, 0x0168, 0x03))
1934 if (alps_command_mode_write_reg(psmouse
, 0x014a, 0x03))
1937 if (alps_command_mode_write_reg(psmouse
, 0x0161, 0x03))
1940 alps_exit_command_mode(psmouse
);
1943 * This sequence changes the output from a 9-byte to an
1944 * 8-byte format. All the same data seems to be present,
1945 * just in a more compact format.
1950 if (ps2_command(ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
) ||
1951 ps2_command(ps2dev
, ¶m
[1], PSMOUSE_CMD_SETRATE
) ||
1952 ps2_command(ps2dev
, ¶m
[2], PSMOUSE_CMD_SETRATE
) ||
1953 ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETID
))
1956 /* Set rate and enable data reporting */
1958 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_SETRATE
) ||
1959 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
)) {
1960 psmouse_err(psmouse
, "Failed to enable data reporting\n");
1968 * Leaving the touchpad in command mode will essentially render
1969 * it unusable until the machine reboots, so exit it here just
1972 alps_exit_command_mode(psmouse
);
1976 static int alps_dolphin_get_device_area(struct psmouse
*psmouse
,
1977 struct alps_data
*priv
)
1979 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
1980 unsigned char param
[4] = {0};
1981 int num_x_electrode
, num_y_electrode
;
1983 if (alps_enter_command_mode(psmouse
))
1987 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_RESET_WRAP
) ||
1988 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETPOLL
) ||
1989 ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETPOLL
) ||
1990 ps2_command(ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
) ||
1991 ps2_command(ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
))
1994 if (ps2_command(ps2dev
, param
, PSMOUSE_CMD_GETINFO
))
1998 * Dolphin's sensor line number is not fixed. It can be calculated
1999 * by adding the device's register value with DOLPHIN_PROFILE_X/YOFFSET.
2000 * Further more, we can get device's x_max and y_max by multiplying
2001 * sensor line number with DOLPHIN_COUNT_PER_ELECTRODE.
2003 * e.g. When we get register's sensor_x = 11 & sensor_y = 8,
2004 * real sensor line number X = 11 + 8 = 19, and
2005 * real sensor line number Y = 8 + 1 = 9.
2006 * So, x_max = (19 - 1) * 64 = 1152, and
2007 * y_max = (9 - 1) * 64 = 512.
2009 num_x_electrode
= DOLPHIN_PROFILE_XOFFSET
+ (param
[2] & 0x0F);
2010 num_y_electrode
= DOLPHIN_PROFILE_YOFFSET
+ ((param
[2] >> 4) & 0x0F);
2011 priv
->x_bits
= num_x_electrode
;
2012 priv
->y_bits
= num_y_electrode
;
2013 priv
->x_max
= (num_x_electrode
- 1) * DOLPHIN_COUNT_PER_ELECTRODE
;
2014 priv
->y_max
= (num_y_electrode
- 1) * DOLPHIN_COUNT_PER_ELECTRODE
;
2016 if (alps_exit_command_mode(psmouse
))
2022 static int alps_hw_init_dolphin_v1(struct psmouse
*psmouse
)
2024 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
2025 unsigned char param
[2];
2027 /* This is dolphin "v1" as empirically defined by florin9doi */
2031 if (ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_SETSTREAM
) ||
2032 ps2_command(ps2dev
, ¶m
[0], PSMOUSE_CMD_SETRATE
) ||
2033 ps2_command(ps2dev
, ¶m
[1], PSMOUSE_CMD_SETRATE
))
2039 static int alps_hw_init_v7(struct psmouse
*psmouse
)
2041 struct ps2dev
*ps2dev
= &psmouse
->ps2dev
;
2042 int reg_val
, ret
= -1;
2044 if (alps_enter_command_mode(psmouse
) ||
2045 alps_command_mode_read_reg(psmouse
, 0xc2d9) == -1)
2048 if (alps_get_v3_v7_resolution(psmouse
, 0xc397))
2051 if (alps_command_mode_write_reg(psmouse
, 0xc2c9, 0x64))
2054 reg_val
= alps_command_mode_read_reg(psmouse
, 0xc2c4);
2057 if (__alps_command_mode_write_reg(psmouse
, reg_val
| 0x02))
2060 alps_exit_command_mode(psmouse
);
2061 return ps2_command(ps2dev
, NULL
, PSMOUSE_CMD_ENABLE
);
2064 alps_exit_command_mode(psmouse
);
2068 static void alps_set_defaults(struct alps_data
*priv
)
2072 priv
->flags
= ALPS_DUALPOINT
;
2079 switch (priv
->proto_version
) {
2082 priv
->hw_init
= alps_hw_init_v1_v2
;
2083 priv
->process_packet
= alps_process_packet_v1_v2
;
2084 priv
->set_abs_params
= alps_set_abs_params_st
;
2089 priv
->hw_init
= alps_hw_init_v3
;
2090 priv
->process_packet
= alps_process_packet_v3
;
2091 priv
->set_abs_params
= alps_set_abs_params_mt
;
2092 priv
->decode_fields
= alps_decode_pinnacle
;
2093 priv
->nibble_commands
= alps_v3_nibble_commands
;
2094 priv
->addr_command
= PSMOUSE_CMD_RESET_WRAP
;
2097 priv
->hw_init
= alps_hw_init_v4
;
2098 priv
->process_packet
= alps_process_packet_v4
;
2099 priv
->set_abs_params
= alps_set_abs_params_mt
;
2100 priv
->nibble_commands
= alps_v4_nibble_commands
;
2101 priv
->addr_command
= PSMOUSE_CMD_DISABLE
;
2104 priv
->hw_init
= alps_hw_init_dolphin_v1
;
2105 priv
->process_packet
= alps_process_touchpad_packet_v3_v5
;
2106 priv
->decode_fields
= alps_decode_dolphin
;
2107 priv
->set_abs_params
= alps_set_abs_params_mt
;
2108 priv
->nibble_commands
= alps_v3_nibble_commands
;
2109 priv
->addr_command
= PSMOUSE_CMD_RESET_WRAP
;
2119 priv
->hw_init
= alps_hw_init_v6
;
2120 priv
->process_packet
= alps_process_packet_v6
;
2121 priv
->set_abs_params
= alps_set_abs_params_st
;
2122 priv
->nibble_commands
= alps_v6_nibble_commands
;
2127 priv
->hw_init
= alps_hw_init_v7
;
2128 priv
->process_packet
= alps_process_packet_v7
;
2129 priv
->decode_fields
= alps_decode_packet_v7
;
2130 priv
->set_abs_params
= alps_set_abs_params_mt
;
2131 priv
->nibble_commands
= alps_v3_nibble_commands
;
2132 priv
->addr_command
= PSMOUSE_CMD_RESET_WRAP
;
2133 priv
->x_max
= 0xfff;
2134 priv
->y_max
= 0x7ff;
2138 if (priv
->fw_ver
[1] != 0xba)
2139 priv
->flags
|= ALPS_BUTTONPAD
;
2144 static int alps_match_table(struct psmouse
*psmouse
, struct alps_data
*priv
,
2145 unsigned char *e7
, unsigned char *ec
)
2147 const struct alps_model_info
*model
;
2150 for (i
= 0; i
< ARRAY_SIZE(alps_model_data
); i
++) {
2151 model
= &alps_model_data
[i
];
2153 if (!memcmp(e7
, model
->signature
, sizeof(model
->signature
)) &&
2154 (!model
->command_mode_resp
||
2155 model
->command_mode_resp
== ec
[2])) {
2157 priv
->proto_version
= model
->proto_version
;
2158 alps_set_defaults(priv
);
2160 priv
->flags
= model
->flags
;
2161 priv
->byte0
= model
->byte0
;
2162 priv
->mask0
= model
->mask0
;
2171 static int alps_identify(struct psmouse
*psmouse
, struct alps_data
*priv
)
2173 unsigned char e6
[4], e7
[4], ec
[4];
2176 * First try "E6 report".
2177 * ALPS should return 0,0,10 or 0,0,100 if no buttons are pressed.
2178 * The bits 0-2 of the first byte will be 1s if some buttons are
2181 if (alps_rpt_cmd(psmouse
, PSMOUSE_CMD_SETRES
,
2182 PSMOUSE_CMD_SETSCALE11
, e6
))
2185 if ((e6
[0] & 0xf8) != 0 || e6
[1] != 0 || (e6
[2] != 10 && e6
[2] != 100))
2189 * Now get the "E7" and "EC" reports. These will uniquely identify
2190 * most ALPS touchpads.
2192 if (alps_rpt_cmd(psmouse
, PSMOUSE_CMD_SETRES
,
2193 PSMOUSE_CMD_SETSCALE21
, e7
) ||
2194 alps_rpt_cmd(psmouse
, PSMOUSE_CMD_SETRES
,
2195 PSMOUSE_CMD_RESET_WRAP
, ec
) ||
2196 alps_exit_command_mode(psmouse
))
2199 /* Save the Firmware version */
2200 memcpy(priv
->fw_ver
, ec
, 3);
2202 if (alps_match_table(psmouse
, priv
, e7
, ec
) == 0) {
2204 } else if (e7
[0] == 0x73 && e7
[1] == 0x03 && e7
[2] == 0x50 &&
2205 ec
[0] == 0x73 && (ec
[1] == 0x01 || ec
[1] == 0x02)) {
2206 priv
->proto_version
= ALPS_PROTO_V5
;
2207 alps_set_defaults(priv
);
2208 if (alps_dolphin_get_device_area(psmouse
, priv
))
2212 } else if (ec
[0] == 0x88 &&
2213 ((ec
[1] & 0xf0) == 0xb0 || (ec
[1] & 0xf0) == 0xc0)) {
2214 priv
->proto_version
= ALPS_PROTO_V7
;
2215 alps_set_defaults(priv
);
2218 } else if (ec
[0] == 0x88 && ec
[1] == 0x08) {
2219 priv
->proto_version
= ALPS_PROTO_V3
;
2220 alps_set_defaults(priv
);
2222 priv
->hw_init
= alps_hw_init_rushmore_v3
;
2223 priv
->decode_fields
= alps_decode_rushmore
;
2226 priv
->flags
|= ALPS_IS_RUSHMORE
;
2228 /* hack to make addr_command, nibble_command available */
2229 psmouse
->private = priv
;
2231 if (alps_probe_trackstick_v3(psmouse
, ALPS_REG_BASE_RUSHMORE
))
2232 priv
->flags
&= ~ALPS_DUALPOINT
;
2235 } else if (ec
[0] == 0x88 && ec
[1] == 0x07 &&
2236 ec
[2] >= 0x90 && ec
[2] <= 0x9d) {
2237 priv
->proto_version
= ALPS_PROTO_V3
;
2238 alps_set_defaults(priv
);
2243 psmouse_dbg(psmouse
,
2244 "Likely not an ALPS touchpad: E7=%3ph, EC=%3ph\n", e7
, ec
);
2249 static int alps_reconnect(struct psmouse
*psmouse
)
2251 struct alps_data
*priv
= psmouse
->private;
2253 psmouse_reset(psmouse
);
2255 if (alps_identify(psmouse
, priv
) < 0)
2258 return priv
->hw_init(psmouse
);
2261 static void alps_disconnect(struct psmouse
*psmouse
)
2263 struct alps_data
*priv
= psmouse
->private;
2265 psmouse_reset(psmouse
);
2266 del_timer_sync(&priv
->timer
);
2267 input_unregister_device(priv
->dev2
);
2271 static void alps_set_abs_params_st(struct alps_data
*priv
,
2272 struct input_dev
*dev1
)
2274 input_set_abs_params(dev1
, ABS_X
, 0, priv
->x_max
, 0, 0);
2275 input_set_abs_params(dev1
, ABS_Y
, 0, priv
->y_max
, 0, 0);
2278 static void alps_set_abs_params_mt(struct alps_data
*priv
,
2279 struct input_dev
*dev1
)
2281 input_set_abs_params(dev1
, ABS_MT_POSITION_X
, 0, priv
->x_max
, 0, 0);
2282 input_set_abs_params(dev1
, ABS_MT_POSITION_Y
, 0, priv
->y_max
, 0, 0);
2284 input_abs_set_res(dev1
, ABS_MT_POSITION_X
, priv
->x_res
);
2285 input_abs_set_res(dev1
, ABS_MT_POSITION_Y
, priv
->y_res
);
2287 input_mt_init_slots(dev1
, MAX_TOUCHES
, INPUT_MT_POINTER
|
2288 INPUT_MT_DROP_UNUSED
| INPUT_MT_TRACK
| INPUT_MT_SEMI_MT
);
2290 set_bit(BTN_TOOL_TRIPLETAP
, dev1
->keybit
);
2291 set_bit(BTN_TOOL_QUADTAP
, dev1
->keybit
);
2293 /* V7 is real multi-touch */
2294 if (priv
->proto_version
== ALPS_PROTO_V7
)
2295 clear_bit(INPUT_PROP_SEMI_MT
, dev1
->propbit
);
2298 int alps_init(struct psmouse
*psmouse
)
2300 struct alps_data
*priv
;
2301 struct input_dev
*dev1
= psmouse
->dev
, *dev2
;
2303 priv
= kzalloc(sizeof(struct alps_data
), GFP_KERNEL
);
2304 dev2
= input_allocate_device();
2309 setup_timer(&priv
->timer
, alps_flush_packet
, (unsigned long)psmouse
);
2311 psmouse
->private = priv
;
2313 psmouse_reset(psmouse
);
2315 if (alps_identify(psmouse
, priv
) < 0)
2318 if (priv
->hw_init(psmouse
))
2322 * Undo part of setup done for us by psmouse core since touchpad
2323 * is not a relative device.
2325 __clear_bit(EV_REL
, dev1
->evbit
);
2326 __clear_bit(REL_X
, dev1
->relbit
);
2327 __clear_bit(REL_Y
, dev1
->relbit
);
2330 * Now set up our capabilities.
2332 dev1
->evbit
[BIT_WORD(EV_KEY
)] |= BIT_MASK(EV_KEY
);
2333 dev1
->keybit
[BIT_WORD(BTN_TOUCH
)] |= BIT_MASK(BTN_TOUCH
);
2334 dev1
->keybit
[BIT_WORD(BTN_TOOL_FINGER
)] |= BIT_MASK(BTN_TOOL_FINGER
);
2335 dev1
->keybit
[BIT_WORD(BTN_LEFT
)] |=
2336 BIT_MASK(BTN_LEFT
) | BIT_MASK(BTN_RIGHT
);
2338 dev1
->evbit
[BIT_WORD(EV_ABS
)] |= BIT_MASK(EV_ABS
);
2340 priv
->set_abs_params(priv
, dev1
);
2341 /* No pressure on V7 */
2342 if (priv
->proto_version
!= ALPS_PROTO_V7
)
2343 input_set_abs_params(dev1
, ABS_PRESSURE
, 0, 127, 0, 0);
2345 if (priv
->flags
& ALPS_WHEEL
) {
2346 dev1
->evbit
[BIT_WORD(EV_REL
)] |= BIT_MASK(EV_REL
);
2347 dev1
->relbit
[BIT_WORD(REL_WHEEL
)] |= BIT_MASK(REL_WHEEL
);
2350 if (priv
->flags
& (ALPS_FW_BK_1
| ALPS_FW_BK_2
)) {
2351 dev1
->keybit
[BIT_WORD(BTN_FORWARD
)] |= BIT_MASK(BTN_FORWARD
);
2352 dev1
->keybit
[BIT_WORD(BTN_BACK
)] |= BIT_MASK(BTN_BACK
);
2355 if (priv
->flags
& ALPS_FOUR_BUTTONS
) {
2356 dev1
->keybit
[BIT_WORD(BTN_0
)] |= BIT_MASK(BTN_0
);
2357 dev1
->keybit
[BIT_WORD(BTN_1
)] |= BIT_MASK(BTN_1
);
2358 dev1
->keybit
[BIT_WORD(BTN_2
)] |= BIT_MASK(BTN_2
);
2359 dev1
->keybit
[BIT_WORD(BTN_3
)] |= BIT_MASK(BTN_3
);
2360 } else if (priv
->flags
& ALPS_BUTTONPAD
) {
2361 set_bit(INPUT_PROP_BUTTONPAD
, dev1
->propbit
);
2362 clear_bit(BTN_RIGHT
, dev1
->keybit
);
2364 dev1
->keybit
[BIT_WORD(BTN_MIDDLE
)] |= BIT_MASK(BTN_MIDDLE
);
2367 snprintf(priv
->phys
, sizeof(priv
->phys
), "%s/input1", psmouse
->ps2dev
.serio
->phys
);
2368 dev2
->phys
= priv
->phys
;
2369 dev2
->name
= (priv
->flags
& ALPS_DUALPOINT
) ?
2370 "DualPoint Stick" : "ALPS PS/2 Device";
2371 dev2
->id
.bustype
= BUS_I8042
;
2372 dev2
->id
.vendor
= 0x0002;
2373 dev2
->id
.product
= PSMOUSE_ALPS
;
2374 dev2
->id
.version
= 0x0000;
2375 dev2
->dev
.parent
= &psmouse
->ps2dev
.serio
->dev
;
2377 dev2
->evbit
[0] = BIT_MASK(EV_KEY
) | BIT_MASK(EV_REL
);
2378 dev2
->relbit
[BIT_WORD(REL_X
)] = BIT_MASK(REL_X
) | BIT_MASK(REL_Y
);
2379 dev2
->keybit
[BIT_WORD(BTN_LEFT
)] =
2380 BIT_MASK(BTN_LEFT
) | BIT_MASK(BTN_MIDDLE
) | BIT_MASK(BTN_RIGHT
);
2382 __set_bit(INPUT_PROP_POINTER
, dev2
->propbit
);
2383 if (priv
->flags
& ALPS_DUALPOINT
)
2384 __set_bit(INPUT_PROP_POINTING_STICK
, dev2
->propbit
);
2386 if (input_register_device(priv
->dev2
))
2389 psmouse
->protocol_handler
= alps_process_byte
;
2390 psmouse
->poll
= alps_poll
;
2391 psmouse
->disconnect
= alps_disconnect
;
2392 psmouse
->reconnect
= alps_reconnect
;
2393 psmouse
->pktsize
= priv
->proto_version
== ALPS_PROTO_V4
? 8 : 6;
2395 /* We are having trouble resyncing ALPS touchpads so disable it for now */
2396 psmouse
->resync_time
= 0;
2398 /* Allow 2 invalid packets without resetting device */
2399 psmouse
->resetafter
= psmouse
->pktsize
* 2;
2404 psmouse_reset(psmouse
);
2405 input_free_device(dev2
);
2407 psmouse
->private = NULL
;
2411 int alps_detect(struct psmouse
*psmouse
, bool set_properties
)
2413 struct alps_data dummy
;
2415 if (alps_identify(psmouse
, &dummy
) < 0)
2418 if (set_properties
) {
2419 psmouse
->vendor
= "ALPS";
2420 psmouse
->name
= dummy
.flags
& ALPS_DUALPOINT
?
2421 "DualPoint TouchPad" : "GlidePoint";
2422 psmouse
->model
= dummy
.proto_version
<< 8;