2 * HID driver for multitouch panels
4 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
5 * Copyright (c) 2010-2013 Benjamin Tissoires <benjamin.tissoires@gmail.com>
6 * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
7 * Copyright (c) 2012-2013 Red Hat, Inc
9 * This code is partly based on hid-egalax.c:
11 * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
12 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
13 * Copyright (c) 2010 Canonical, Ltd.
15 * This code is partly based on hid-3m-pct.c:
17 * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
18 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
19 * Copyright (c) 2010 Canonical, Ltd.
24 * This program is free software; you can redistribute it and/or modify it
25 * under the terms of the GNU General Public License as published by the Free
26 * Software Foundation; either version 2 of the License, or (at your option)
31 * This driver is regularly tested thanks to the tool hid-test[1].
32 * This tool relies on hid-replay[2] and a database of hid devices[3].
33 * Please run these regression tests before patching this module so that
34 * your patch won't break existing known devices.
36 * [1] https://github.com/bentiss/hid-test
37 * [2] https://github.com/bentiss/hid-replay
38 * [3] https://github.com/bentiss/hid-devices
41 #include <linux/device.h>
42 #include <linux/hid.h>
43 #include <linux/module.h>
44 #include <linux/slab.h>
45 #include <linux/input/mt.h>
46 #include <linux/string.h>
49 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
50 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
51 MODULE_DESCRIPTION("HID multitouch panels");
52 MODULE_LICENSE("GPL");
56 /* quirks to control the device */
57 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0)
58 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1)
59 #define MT_QUIRK_CYPRESS (1 << 2)
60 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3)
61 #define MT_QUIRK_ALWAYS_VALID (1 << 4)
62 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5)
63 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6)
64 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
65 #define MT_QUIRK_NO_AREA (1 << 9)
66 #define MT_QUIRK_IGNORE_DUPLICATES (1 << 10)
67 #define MT_QUIRK_HOVERING (1 << 11)
68 #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12)
69 #define MT_QUIRK_FORCE_GET_FEATURE (1 << 13)
71 #define MT_INPUTMODE_TOUCHSCREEN 0x02
72 #define MT_INPUTMODE_TOUCHPAD 0x03
74 #define MT_BUTTONTYPE_CLICKPAD 0
77 __s32 x
, y
, cx
, cy
, p
, w
, h
;
78 __s32 contactid
; /* the device ContactID assigned to this slot */
79 bool touch_state
; /* is the touch valid? */
80 bool inrange_state
; /* is the finger in proximity of the sensor? */
84 __s32 name
; /* MT_CLS */
86 __s32 sn_move
; /* Signal/noise ratio for move events */
87 __s32 sn_width
; /* Signal/noise ratio for width events */
88 __s32 sn_height
; /* Signal/noise ratio for height events */
89 __s32 sn_pressure
; /* Signal/noise ratio for pressure events */
91 bool is_indirect
; /* true for touchpads */
92 bool export_all_inputs
; /* do not ignore mouse, keyboards, etc... */
96 unsigned usages
[HID_MAX_FIELDS
];
101 struct mt_slot curdata
; /* placeholder of incoming data */
102 struct mt_class mtclass
; /* our mt device class */
103 struct mt_fields
*fields
; /* temporary placeholder for storing the
105 int cc_index
; /* contact count field index in the report */
106 int cc_value_index
; /* contact count value index in the field */
107 unsigned last_slot_field
; /* the last field of a slot */
108 unsigned mt_report_id
; /* the report ID of the multitouch device */
109 __s16 inputmode
; /* InputMode HID feature, -1 if non-existent */
110 __s16 inputmode_index
; /* InputMode HID feature index in the report */
111 __s16 maxcontact_report_id
; /* Maximum Contact Number HID feature,
112 -1 if non-existent */
113 __u8 inputmode_value
; /* InputMode HID feature value */
114 __u8 num_received
; /* how many contacts we received */
115 __u8 num_expected
; /* expected last contact index */
117 __u8 touches_by_report
; /* how many touches are present in one report:
118 * 1 means we should use a serial protocol
119 * > 1 means hybrid (multitouch) protocol */
120 __u8 buttons_count
; /* number of physical buttons per touchpad */
121 bool is_buttonpad
; /* is this device a button pad? */
122 bool serial_maybe
; /* need to check for serial protocol */
123 bool curvalid
; /* is the current contact valid? */
124 unsigned mt_flags
; /* flags to pass to input-mt */
127 static void mt_post_parse_default_settings(struct mt_device
*td
);
128 static void mt_post_parse(struct mt_device
*td
);
130 /* classes of device behavior */
131 #define MT_CLS_DEFAULT 0x0001
133 #define MT_CLS_SERIAL 0x0002
134 #define MT_CLS_CONFIDENCE 0x0003
135 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
136 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
137 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
138 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
139 /* reserved 0x0008 */
140 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
141 #define MT_CLS_NSMU 0x000a
142 /* reserved 0x0010 */
143 /* reserved 0x0011 */
144 #define MT_CLS_WIN_8 0x0012
145 #define MT_CLS_EXPORT_ALL_INPUTS 0x0013
147 /* vendor specific classes */
148 #define MT_CLS_3M 0x0101
149 /* reserved 0x0102 */
150 #define MT_CLS_EGALAX 0x0103
151 #define MT_CLS_EGALAX_SERIAL 0x0104
152 #define MT_CLS_TOPSEED 0x0105
153 #define MT_CLS_PANASONIC 0x0106
154 #define MT_CLS_FLATFROG 0x0107
155 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
156 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
157 #define MT_CLS_VTL 0x0110
159 #define MT_DEFAULT_MAXCONTACT 10
160 #define MT_MAX_MAXCONTACT 250
162 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
163 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
166 * these device-dependent functions determine what slot corresponds
167 * to a valid contact that was just read.
170 static int cypress_compute_slot(struct mt_device
*td
)
172 if (td
->curdata
.contactid
!= 0 || td
->num_received
== 0)
173 return td
->curdata
.contactid
;
178 static struct mt_class mt_classes
[] = {
179 { .name
= MT_CLS_DEFAULT
,
180 .quirks
= MT_QUIRK_ALWAYS_VALID
|
181 MT_QUIRK_CONTACT_CNT_ACCURATE
},
182 { .name
= MT_CLS_NSMU
,
183 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
},
184 { .name
= MT_CLS_SERIAL
,
185 .quirks
= MT_QUIRK_ALWAYS_VALID
},
186 { .name
= MT_CLS_CONFIDENCE
,
187 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
},
188 { .name
= MT_CLS_CONFIDENCE_CONTACT_ID
,
189 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
|
190 MT_QUIRK_SLOT_IS_CONTACTID
},
191 { .name
= MT_CLS_CONFIDENCE_MINUS_ONE
,
192 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
|
193 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE
},
194 { .name
= MT_CLS_DUAL_INRANGE_CONTACTID
,
195 .quirks
= MT_QUIRK_VALID_IS_INRANGE
|
196 MT_QUIRK_SLOT_IS_CONTACTID
,
198 { .name
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
199 .quirks
= MT_QUIRK_VALID_IS_INRANGE
|
200 MT_QUIRK_SLOT_IS_CONTACTNUMBER
,
202 { .name
= MT_CLS_INRANGE_CONTACTNUMBER
,
203 .quirks
= MT_QUIRK_VALID_IS_INRANGE
|
204 MT_QUIRK_SLOT_IS_CONTACTNUMBER
},
205 { .name
= MT_CLS_WIN_8
,
206 .quirks
= MT_QUIRK_ALWAYS_VALID
|
207 MT_QUIRK_IGNORE_DUPLICATES
|
209 MT_QUIRK_CONTACT_CNT_ACCURATE
},
210 { .name
= MT_CLS_EXPORT_ALL_INPUTS
,
211 .quirks
= MT_QUIRK_ALWAYS_VALID
|
212 MT_QUIRK_CONTACT_CNT_ACCURATE
,
213 .export_all_inputs
= true },
216 * vendor specific classes
219 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
|
220 MT_QUIRK_SLOT_IS_CONTACTID
,
226 { .name
= MT_CLS_EGALAX
,
227 .quirks
= MT_QUIRK_SLOT_IS_CONTACTID
|
228 MT_QUIRK_VALID_IS_INRANGE
,
232 { .name
= MT_CLS_EGALAX_SERIAL
,
233 .quirks
= MT_QUIRK_SLOT_IS_CONTACTID
|
234 MT_QUIRK_ALWAYS_VALID
,
238 { .name
= MT_CLS_TOPSEED
,
239 .quirks
= MT_QUIRK_ALWAYS_VALID
,
243 { .name
= MT_CLS_PANASONIC
,
244 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
,
246 { .name
= MT_CLS_GENERALTOUCH_TWOFINGERS
,
247 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
|
248 MT_QUIRK_VALID_IS_INRANGE
|
249 MT_QUIRK_SLOT_IS_CONTACTID
,
252 { .name
= MT_CLS_GENERALTOUCH_PWT_TENFINGERS
,
253 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
|
254 MT_QUIRK_SLOT_IS_CONTACTID
257 { .name
= MT_CLS_FLATFROG
,
258 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
|
263 { .name
= MT_CLS_VTL
,
264 .quirks
= MT_QUIRK_ALWAYS_VALID
|
265 MT_QUIRK_CONTACT_CNT_ACCURATE
|
266 MT_QUIRK_FORCE_GET_FEATURE
,
271 static ssize_t
mt_show_quirks(struct device
*dev
,
272 struct device_attribute
*attr
,
275 struct hid_device
*hdev
= to_hid_device(dev
);
276 struct mt_device
*td
= hid_get_drvdata(hdev
);
278 return sprintf(buf
, "%u\n", td
->mtclass
.quirks
);
281 static ssize_t
mt_set_quirks(struct device
*dev
,
282 struct device_attribute
*attr
,
283 const char *buf
, size_t count
)
285 struct hid_device
*hdev
= to_hid_device(dev
);
286 struct mt_device
*td
= hid_get_drvdata(hdev
);
290 if (kstrtoul(buf
, 0, &val
))
293 td
->mtclass
.quirks
= val
;
295 if (td
->cc_index
< 0)
296 td
->mtclass
.quirks
&= ~MT_QUIRK_CONTACT_CNT_ACCURATE
;
301 static DEVICE_ATTR(quirks
, S_IWUSR
| S_IRUGO
, mt_show_quirks
, mt_set_quirks
);
303 static struct attribute
*sysfs_attrs
[] = {
304 &dev_attr_quirks
.attr
,
308 static struct attribute_group mt_attribute_group
= {
312 static void mt_get_feature(struct hid_device
*hdev
, struct hid_report
*report
)
314 struct mt_device
*td
= hid_get_drvdata(hdev
);
315 int ret
, size
= hid_report_len(report
);
319 * Only fetch the feature report if initial reports are not already
320 * been retrieved. Currently this is only done for Windows 8 touch
323 if (!(hdev
->quirks
& HID_QUIRK_NO_INIT_REPORTS
))
325 if (td
->mtclass
.name
!= MT_CLS_WIN_8
)
328 buf
= hid_alloc_report_buf(report
, GFP_KERNEL
);
332 ret
= hid_hw_raw_request(hdev
, report
->id
, buf
, size
,
333 HID_FEATURE_REPORT
, HID_REQ_GET_REPORT
);
335 dev_warn(&hdev
->dev
, "failed to fetch feature %d\n",
338 ret
= hid_report_raw_event(hdev
, HID_FEATURE_REPORT
, buf
,
341 dev_warn(&hdev
->dev
, "failed to report feature\n");
347 static void mt_feature_mapping(struct hid_device
*hdev
,
348 struct hid_field
*field
, struct hid_usage
*usage
)
350 struct mt_device
*td
= hid_get_drvdata(hdev
);
352 switch (usage
->hid
) {
353 case HID_DG_INPUTMODE
:
354 /* Ignore if value index is out of bounds. */
355 if (usage
->usage_index
>= field
->report_count
) {
356 dev_err(&hdev
->dev
, "HID_DG_INPUTMODE out of range\n");
360 if (td
->inputmode
< 0) {
361 td
->inputmode
= field
->report
->id
;
362 td
->inputmode_index
= usage
->usage_index
;
365 * Some elan panels wrongly declare 2 input mode
366 * features, and silently ignore when we set the
367 * value in the second field. Skip the second feature
368 * and hope for the best.
371 "Ignoring the extra HID_DG_INPUTMODE\n");
375 case HID_DG_CONTACTMAX
:
376 mt_get_feature(hdev
, field
->report
);
378 td
->maxcontact_report_id
= field
->report
->id
;
379 td
->maxcontacts
= field
->value
[0];
380 if (!td
->maxcontacts
&&
381 field
->logical_maximum
<= MT_MAX_MAXCONTACT
)
382 td
->maxcontacts
= field
->logical_maximum
;
383 if (td
->mtclass
.maxcontacts
)
384 /* check if the maxcontacts is given by the class */
385 td
->maxcontacts
= td
->mtclass
.maxcontacts
;
388 case HID_DG_BUTTONTYPE
:
389 if (usage
->usage_index
>= field
->report_count
) {
390 dev_err(&hdev
->dev
, "HID_DG_BUTTONTYPE out of range\n");
394 mt_get_feature(hdev
, field
->report
);
395 if (field
->value
[usage
->usage_index
] == MT_BUTTONTYPE_CLICKPAD
)
396 td
->is_buttonpad
= true;
402 static void set_abs(struct input_dev
*input
, unsigned int code
,
403 struct hid_field
*field
, int snratio
)
405 int fmin
= field
->logical_minimum
;
406 int fmax
= field
->logical_maximum
;
407 int fuzz
= snratio
? (fmax
- fmin
) / snratio
: 0;
408 input_set_abs_params(input
, code
, fmin
, fmax
, fuzz
, 0);
409 input_abs_set_res(input
, code
, hidinput_calc_abs_res(field
, code
));
412 static void mt_store_field(struct hid_usage
*usage
, struct mt_device
*td
,
413 struct hid_input
*hi
)
415 struct mt_fields
*f
= td
->fields
;
417 if (f
->length
>= HID_MAX_FIELDS
)
420 f
->usages
[f
->length
++] = usage
->hid
;
423 static int mt_touch_input_mapping(struct hid_device
*hdev
, struct hid_input
*hi
,
424 struct hid_field
*field
, struct hid_usage
*usage
,
425 unsigned long **bit
, int *max
)
427 struct mt_device
*td
= hid_get_drvdata(hdev
);
428 struct mt_class
*cls
= &td
->mtclass
;
430 struct hid_usage
*prev_usage
= NULL
;
432 if (field
->application
== HID_DG_TOUCHSCREEN
)
433 td
->mt_flags
|= INPUT_MT_DIRECT
;
436 * Model touchscreens providing buttons as touchpads.
438 if (field
->application
== HID_DG_TOUCHPAD
||
439 (usage
->hid
& HID_USAGE_PAGE
) == HID_UP_BUTTON
) {
440 td
->mt_flags
|= INPUT_MT_POINTER
;
441 td
->inputmode_value
= MT_INPUTMODE_TOUCHPAD
;
444 /* count the buttons on touchpads */
445 if ((usage
->hid
& HID_USAGE_PAGE
) == HID_UP_BUTTON
)
448 if (usage
->usage_index
)
449 prev_usage
= &field
->usage
[usage
->usage_index
- 1];
451 switch (usage
->hid
& HID_USAGE_PAGE
) {
454 switch (usage
->hid
) {
456 if (prev_usage
&& (prev_usage
->hid
== usage
->hid
)) {
457 hid_map_usage(hi
, usage
, bit
, max
,
458 EV_ABS
, ABS_MT_TOOL_X
);
459 set_abs(hi
->input
, ABS_MT_TOOL_X
, field
,
462 hid_map_usage(hi
, usage
, bit
, max
,
463 EV_ABS
, ABS_MT_POSITION_X
);
464 set_abs(hi
->input
, ABS_MT_POSITION_X
, field
,
468 mt_store_field(usage
, td
, hi
);
471 if (prev_usage
&& (prev_usage
->hid
== usage
->hid
)) {
472 hid_map_usage(hi
, usage
, bit
, max
,
473 EV_ABS
, ABS_MT_TOOL_Y
);
474 set_abs(hi
->input
, ABS_MT_TOOL_Y
, field
,
477 hid_map_usage(hi
, usage
, bit
, max
,
478 EV_ABS
, ABS_MT_POSITION_Y
);
479 set_abs(hi
->input
, ABS_MT_POSITION_Y
, field
,
483 mt_store_field(usage
, td
, hi
);
488 case HID_UP_DIGITIZER
:
489 switch (usage
->hid
) {
491 if (cls
->quirks
& MT_QUIRK_HOVERING
) {
492 hid_map_usage(hi
, usage
, bit
, max
,
493 EV_ABS
, ABS_MT_DISTANCE
);
494 input_set_abs_params(hi
->input
,
495 ABS_MT_DISTANCE
, 0, 1, 0, 0);
497 mt_store_field(usage
, td
, hi
);
499 case HID_DG_CONFIDENCE
:
500 if (cls
->name
== MT_CLS_WIN_8
&&
501 field
->application
== HID_DG_TOUCHPAD
) {
502 cls
->quirks
&= ~MT_QUIRK_ALWAYS_VALID
;
503 cls
->quirks
|= MT_QUIRK_VALID_IS_CONFIDENCE
;
505 mt_store_field(usage
, td
, hi
);
507 case HID_DG_TIPSWITCH
:
508 hid_map_usage(hi
, usage
, bit
, max
, EV_KEY
, BTN_TOUCH
);
509 input_set_capability(hi
->input
, EV_KEY
, BTN_TOUCH
);
510 mt_store_field(usage
, td
, hi
);
512 case HID_DG_CONTACTID
:
513 mt_store_field(usage
, td
, hi
);
514 td
->touches_by_report
++;
515 td
->mt_report_id
= field
->report
->id
;
518 hid_map_usage(hi
, usage
, bit
, max
,
519 EV_ABS
, ABS_MT_TOUCH_MAJOR
);
520 if (!(cls
->quirks
& MT_QUIRK_NO_AREA
))
521 set_abs(hi
->input
, ABS_MT_TOUCH_MAJOR
, field
,
523 mt_store_field(usage
, td
, hi
);
526 hid_map_usage(hi
, usage
, bit
, max
,
527 EV_ABS
, ABS_MT_TOUCH_MINOR
);
528 if (!(cls
->quirks
& MT_QUIRK_NO_AREA
)) {
529 set_abs(hi
->input
, ABS_MT_TOUCH_MINOR
, field
,
531 input_set_abs_params(hi
->input
,
532 ABS_MT_ORIENTATION
, 0, 1, 0, 0);
534 mt_store_field(usage
, td
, hi
);
536 case HID_DG_TIPPRESSURE
:
537 hid_map_usage(hi
, usage
, bit
, max
,
538 EV_ABS
, ABS_MT_PRESSURE
);
539 set_abs(hi
->input
, ABS_MT_PRESSURE
, field
,
541 mt_store_field(usage
, td
, hi
);
543 case HID_DG_CONTACTCOUNT
:
544 /* Ignore if indexes are out of bounds. */
545 if (field
->index
>= field
->report
->maxfield
||
546 usage
->usage_index
>= field
->report_count
)
548 td
->cc_index
= field
->index
;
549 td
->cc_value_index
= usage
->usage_index
;
551 case HID_DG_CONTACTMAX
:
552 /* we don't set td->last_slot_field as contactcount and
553 * contact max are global to the report */
556 /* Legacy devices use TIPSWITCH and not TOUCH.
557 * Let's just ignore this field. */
560 /* let hid-input decide for the others */
564 code
= BTN_MOUSE
+ ((usage
->hid
- 1) & HID_USAGE
);
565 hid_map_usage(hi
, usage
, bit
, max
, EV_KEY
, code
);
566 input_set_capability(hi
->input
, EV_KEY
, code
);
570 /* we do not want to map these: no input-oriented meaning */
577 static int mt_touch_input_mapped(struct hid_device
*hdev
, struct hid_input
*hi
,
578 struct hid_field
*field
, struct hid_usage
*usage
,
579 unsigned long **bit
, int *max
)
581 if (usage
->type
== EV_KEY
|| usage
->type
== EV_ABS
)
582 set_bit(usage
->type
, hi
->input
->evbit
);
587 static int mt_compute_slot(struct mt_device
*td
, struct input_dev
*input
)
589 __s32 quirks
= td
->mtclass
.quirks
;
591 if (quirks
& MT_QUIRK_SLOT_IS_CONTACTID
)
592 return td
->curdata
.contactid
;
594 if (quirks
& MT_QUIRK_CYPRESS
)
595 return cypress_compute_slot(td
);
597 if (quirks
& MT_QUIRK_SLOT_IS_CONTACTNUMBER
)
598 return td
->num_received
;
600 if (quirks
& MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE
)
601 return td
->curdata
.contactid
- 1;
603 return input_mt_get_slot_by_key(input
, td
->curdata
.contactid
);
607 * this function is called when a whole contact has been processed,
608 * so that it can assign it to a slot and store the data there
610 static void mt_complete_slot(struct mt_device
*td
, struct input_dev
*input
)
612 if ((td
->mtclass
.quirks
& MT_QUIRK_CONTACT_CNT_ACCURATE
) &&
613 td
->num_received
>= td
->num_expected
)
616 if (td
->curvalid
|| (td
->mtclass
.quirks
& MT_QUIRK_ALWAYS_VALID
)) {
617 int slotnum
= mt_compute_slot(td
, input
);
618 struct mt_slot
*s
= &td
->curdata
;
619 struct input_mt
*mt
= input
->mt
;
621 if (slotnum
< 0 || slotnum
>= td
->maxcontacts
)
624 if ((td
->mtclass
.quirks
& MT_QUIRK_IGNORE_DUPLICATES
) && mt
) {
625 struct input_mt_slot
*slot
= &mt
->slots
[slotnum
];
626 if (input_mt_is_active(slot
) &&
627 input_mt_is_used(mt
, slot
))
631 input_mt_slot(input
, slotnum
);
632 input_mt_report_slot_state(input
, MT_TOOL_FINGER
,
633 s
->touch_state
|| s
->inrange_state
);
634 if (s
->touch_state
|| s
->inrange_state
) {
635 /* this finger is in proximity of the sensor */
636 int wide
= (s
->w
> s
->h
);
637 /* divided by two to match visual scale of touch */
638 int major
= max(s
->w
, s
->h
) >> 1;
639 int minor
= min(s
->w
, s
->h
) >> 1;
641 input_event(input
, EV_ABS
, ABS_MT_POSITION_X
, s
->x
);
642 input_event(input
, EV_ABS
, ABS_MT_POSITION_Y
, s
->y
);
643 input_event(input
, EV_ABS
, ABS_MT_TOOL_X
, s
->cx
);
644 input_event(input
, EV_ABS
, ABS_MT_TOOL_Y
, s
->cy
);
645 input_event(input
, EV_ABS
, ABS_MT_DISTANCE
,
647 input_event(input
, EV_ABS
, ABS_MT_ORIENTATION
, wide
);
648 input_event(input
, EV_ABS
, ABS_MT_PRESSURE
, s
->p
);
649 input_event(input
, EV_ABS
, ABS_MT_TOUCH_MAJOR
, major
);
650 input_event(input
, EV_ABS
, ABS_MT_TOUCH_MINOR
, minor
);
658 * this function is called when a whole packet has been received and processed,
659 * so that it can decide what to send to the input layer.
661 static void mt_sync_frame(struct mt_device
*td
, struct input_dev
*input
)
663 input_mt_sync_frame(input
);
665 td
->num_received
= 0;
668 static int mt_touch_event(struct hid_device
*hid
, struct hid_field
*field
,
669 struct hid_usage
*usage
, __s32 value
)
671 /* we will handle the hidinput part later, now remains hiddev */
672 if (hid
->claimed
& HID_CLAIMED_HIDDEV
&& hid
->hiddev_hid_event
)
673 hid
->hiddev_hid_event(hid
, field
, usage
, value
);
678 static void mt_process_mt_event(struct hid_device
*hid
, struct hid_field
*field
,
679 struct hid_usage
*usage
, __s32 value
)
681 struct mt_device
*td
= hid_get_drvdata(hid
);
682 __s32 quirks
= td
->mtclass
.quirks
;
683 struct input_dev
*input
= field
->hidinput
->input
;
685 if (hid
->claimed
& HID_CLAIMED_INPUT
) {
686 switch (usage
->hid
) {
688 if (quirks
& MT_QUIRK_VALID_IS_INRANGE
)
689 td
->curvalid
= value
;
690 if (quirks
& MT_QUIRK_HOVERING
)
691 td
->curdata
.inrange_state
= value
;
693 case HID_DG_TIPSWITCH
:
694 if (quirks
& MT_QUIRK_NOT_SEEN_MEANS_UP
)
695 td
->curvalid
= value
;
696 td
->curdata
.touch_state
= value
;
698 case HID_DG_CONFIDENCE
:
699 if (quirks
& MT_QUIRK_VALID_IS_CONFIDENCE
)
700 td
->curvalid
= value
;
702 case HID_DG_CONTACTID
:
703 td
->curdata
.contactid
= value
;
705 case HID_DG_TIPPRESSURE
:
706 td
->curdata
.p
= value
;
709 if (usage
->code
== ABS_MT_TOOL_X
)
710 td
->curdata
.cx
= value
;
712 td
->curdata
.x
= value
;
715 if (usage
->code
== ABS_MT_TOOL_Y
)
716 td
->curdata
.cy
= value
;
718 td
->curdata
.y
= value
;
721 td
->curdata
.w
= value
;
724 td
->curdata
.h
= value
;
726 case HID_DG_CONTACTCOUNT
:
734 input_event(input
, usage
->type
, usage
->code
,
739 if (usage
->usage_index
+ 1 == field
->report_count
) {
740 /* we only take into account the last report. */
741 if (usage
->hid
== td
->last_slot_field
)
742 mt_complete_slot(td
, field
->hidinput
->input
);
748 static void mt_touch_report(struct hid_device
*hid
, struct hid_report
*report
)
750 struct mt_device
*td
= hid_get_drvdata(hid
);
751 struct hid_field
*field
;
756 * Includes multi-packet support where subsequent
757 * packets are sent with zero contactcount.
759 if (td
->cc_index
>= 0) {
760 struct hid_field
*field
= report
->field
[td
->cc_index
];
761 int value
= field
->value
[td
->cc_value_index
];
763 td
->num_expected
= value
;
766 for (r
= 0; r
< report
->maxfield
; r
++) {
767 field
= report
->field
[r
];
768 count
= field
->report_count
;
770 if (!(HID_MAIN_ITEM_VARIABLE
& field
->flags
))
773 for (n
= 0; n
< count
; n
++)
774 mt_process_mt_event(hid
, field
, &field
->usage
[n
],
778 if (td
->num_received
>= td
->num_expected
)
779 mt_sync_frame(td
, report
->field
[0]->hidinput
->input
);
782 static int mt_touch_input_configured(struct hid_device
*hdev
,
783 struct hid_input
*hi
)
785 struct mt_device
*td
= hid_get_drvdata(hdev
);
786 struct mt_class
*cls
= &td
->mtclass
;
787 struct input_dev
*input
= hi
->input
;
790 if (!td
->maxcontacts
)
791 td
->maxcontacts
= MT_DEFAULT_MAXCONTACT
;
794 if (td
->serial_maybe
)
795 mt_post_parse_default_settings(td
);
797 if (cls
->is_indirect
)
798 td
->mt_flags
|= INPUT_MT_POINTER
;
800 if (cls
->quirks
& MT_QUIRK_NOT_SEEN_MEANS_UP
)
801 td
->mt_flags
|= INPUT_MT_DROP_UNUSED
;
803 /* check for clickpads */
804 if ((td
->mt_flags
& INPUT_MT_POINTER
) && (td
->buttons_count
== 1))
805 td
->is_buttonpad
= true;
807 if (td
->is_buttonpad
)
808 __set_bit(INPUT_PROP_BUTTONPAD
, input
->propbit
);
810 ret
= input_mt_init_slots(input
, td
->maxcontacts
, td
->mt_flags
);
818 static int mt_input_mapping(struct hid_device
*hdev
, struct hid_input
*hi
,
819 struct hid_field
*field
, struct hid_usage
*usage
,
820 unsigned long **bit
, int *max
)
822 struct mt_device
*td
= hid_get_drvdata(hdev
);
825 * If mtclass.export_all_inputs is not set, only map fields from
826 * TouchScreen or TouchPad collections. We need to ignore fields
827 * that belong to other collections such as Mouse that might have
828 * the same GenericDesktop usages.
830 if (!td
->mtclass
.export_all_inputs
&&
831 field
->application
!= HID_DG_TOUCHSCREEN
&&
832 field
->application
!= HID_DG_PEN
&&
833 field
->application
!= HID_DG_TOUCHPAD
)
837 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
839 * The check for mt_report_id ensures we don't process
840 * HID_DG_CONTACTCOUNT from the pen report as it is outside the physical
841 * collection, but within the report ID.
843 if (field
->physical
== HID_DG_STYLUS
)
845 else if ((field
->physical
== 0) &&
846 (field
->report
->id
!= td
->mt_report_id
) &&
847 (td
->mt_report_id
!= -1))
850 if (field
->application
== HID_DG_TOUCHSCREEN
||
851 field
->application
== HID_DG_TOUCHPAD
)
852 return mt_touch_input_mapping(hdev
, hi
, field
, usage
, bit
, max
);
854 /* let hid-core decide for the others */
858 static int mt_input_mapped(struct hid_device
*hdev
, struct hid_input
*hi
,
859 struct hid_field
*field
, struct hid_usage
*usage
,
860 unsigned long **bit
, int *max
)
863 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
866 if (field
->physical
== HID_DG_STYLUS
)
869 if (field
->application
== HID_DG_TOUCHSCREEN
||
870 field
->application
== HID_DG_TOUCHPAD
)
871 return mt_touch_input_mapped(hdev
, hi
, field
, usage
, bit
, max
);
873 /* let hid-core decide for the others */
877 static int mt_event(struct hid_device
*hid
, struct hid_field
*field
,
878 struct hid_usage
*usage
, __s32 value
)
880 struct mt_device
*td
= hid_get_drvdata(hid
);
882 if (field
->report
->id
== td
->mt_report_id
)
883 return mt_touch_event(hid
, field
, usage
, value
);
888 static void mt_report(struct hid_device
*hid
, struct hid_report
*report
)
890 struct mt_device
*td
= hid_get_drvdata(hid
);
891 struct hid_field
*field
= report
->field
[0];
893 if (!(hid
->claimed
& HID_CLAIMED_INPUT
))
896 if (report
->id
== td
->mt_report_id
)
897 return mt_touch_report(hid
, report
);
899 if (field
&& field
->hidinput
&& field
->hidinput
->input
)
900 input_sync(field
->hidinput
->input
);
903 static void mt_set_input_mode(struct hid_device
*hdev
)
905 struct mt_device
*td
= hid_get_drvdata(hdev
);
906 struct hid_report
*r
;
907 struct hid_report_enum
*re
;
908 struct mt_class
*cls
= &td
->mtclass
;
912 if (td
->inputmode
< 0)
915 re
= &(hdev
->report_enum
[HID_FEATURE_REPORT
]);
916 r
= re
->report_id_hash
[td
->inputmode
];
918 if (cls
->quirks
& MT_QUIRK_FORCE_GET_FEATURE
) {
919 report_len
= hid_report_len(r
);
920 buf
= hid_alloc_report_buf(r
, GFP_KERNEL
);
922 hid_err(hdev
, "failed to allocate buffer for report\n");
925 hid_hw_raw_request(hdev
, r
->id
, buf
, report_len
,
930 r
->field
[0]->value
[td
->inputmode_index
] = td
->inputmode_value
;
931 hid_hw_request(hdev
, r
, HID_REQ_SET_REPORT
);
935 static void mt_set_maxcontacts(struct hid_device
*hdev
)
937 struct mt_device
*td
= hid_get_drvdata(hdev
);
938 struct hid_report
*r
;
939 struct hid_report_enum
*re
;
942 if (td
->maxcontact_report_id
< 0)
945 if (!td
->mtclass
.maxcontacts
)
948 re
= &hdev
->report_enum
[HID_FEATURE_REPORT
];
949 r
= re
->report_id_hash
[td
->maxcontact_report_id
];
951 max
= td
->mtclass
.maxcontacts
;
952 fieldmax
= r
->field
[0]->logical_maximum
;
953 max
= min(fieldmax
, max
);
954 if (r
->field
[0]->value
[0] != max
) {
955 r
->field
[0]->value
[0] = max
;
956 hid_hw_request(hdev
, r
, HID_REQ_SET_REPORT
);
961 static void mt_post_parse_default_settings(struct mt_device
*td
)
963 __s32 quirks
= td
->mtclass
.quirks
;
965 /* unknown serial device needs special quirks */
966 if (td
->touches_by_report
== 1) {
967 quirks
|= MT_QUIRK_ALWAYS_VALID
;
968 quirks
&= ~MT_QUIRK_NOT_SEEN_MEANS_UP
;
969 quirks
&= ~MT_QUIRK_VALID_IS_INRANGE
;
970 quirks
&= ~MT_QUIRK_VALID_IS_CONFIDENCE
;
971 quirks
&= ~MT_QUIRK_CONTACT_CNT_ACCURATE
;
974 td
->mtclass
.quirks
= quirks
;
977 static void mt_post_parse(struct mt_device
*td
)
979 struct mt_fields
*f
= td
->fields
;
980 struct mt_class
*cls
= &td
->mtclass
;
982 if (td
->touches_by_report
> 0) {
983 int field_count_per_touch
= f
->length
/ td
->touches_by_report
;
984 td
->last_slot_field
= f
->usages
[field_count_per_touch
- 1];
987 if (td
->cc_index
< 0)
988 cls
->quirks
&= ~MT_QUIRK_CONTACT_CNT_ACCURATE
;
991 static int mt_input_configured(struct hid_device
*hdev
, struct hid_input
*hi
)
993 struct mt_device
*td
= hid_get_drvdata(hdev
);
995 const char *suffix
= NULL
;
996 struct hid_field
*field
= hi
->report
->field
[0];
999 if (hi
->report
->id
== td
->mt_report_id
) {
1000 ret
= mt_touch_input_configured(hdev
, hi
);
1006 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
1007 * for the stylus. Check this first, and then rely on the application
1010 if (hi
->report
->field
[0]->physical
== HID_DG_STYLUS
) {
1012 /* force BTN_STYLUS to allow tablet matching in udev */
1013 __set_bit(BTN_STYLUS
, hi
->input
->keybit
);
1015 switch (field
->application
) {
1016 case HID_GD_KEYBOARD
:
1017 suffix
= "Keyboard";
1027 /* force BTN_STYLUS to allow tablet matching in udev */
1028 __set_bit(BTN_STYLUS
, hi
->input
->keybit
);
1030 case HID_DG_TOUCHSCREEN
:
1031 /* we do not set suffix = "Touchscreen" */
1033 case HID_DG_TOUCHPAD
:
1034 suffix
= "Touchpad";
1036 case HID_GD_SYSTEM_CONTROL
:
1037 suffix
= "System Control";
1039 case HID_CP_CONSUMER_CONTROL
:
1040 suffix
= "Consumer Control";
1049 name
= devm_kzalloc(&hi
->input
->dev
,
1050 strlen(hdev
->name
) + strlen(suffix
) + 2,
1053 sprintf(name
, "%s %s", hdev
->name
, suffix
);
1054 hi
->input
->name
= name
;
1061 static int mt_probe(struct hid_device
*hdev
, const struct hid_device_id
*id
)
1064 struct mt_device
*td
;
1065 struct mt_class
*mtclass
= mt_classes
; /* MT_CLS_DEFAULT */
1067 for (i
= 0; mt_classes
[i
].name
; i
++) {
1068 if (id
->driver_data
== mt_classes
[i
].name
) {
1069 mtclass
= &(mt_classes
[i
]);
1074 /* This allows the driver to correctly support devices
1075 * that emit events over several HID messages.
1077 hdev
->quirks
|= HID_QUIRK_NO_INPUT_SYNC
;
1080 * This allows the driver to handle different input sensors
1081 * that emits events through different reports on the same HID
1084 hdev
->quirks
|= HID_QUIRK_MULTI_INPUT
;
1085 hdev
->quirks
|= HID_QUIRK_NO_EMPTY_INPUT
;
1088 * Handle special quirks for Windows 8 certified devices.
1090 if (id
->group
== HID_GROUP_MULTITOUCH_WIN_8
)
1092 * Some multitouch screens do not like to be polled for input
1093 * reports. Fortunately, the Win8 spec says that all touches
1094 * should be sent during each report, making the initialization
1095 * of input reports unnecessary.
1097 * In addition some touchpads do not behave well if we read
1098 * all feature reports from them. Instead we prevent
1099 * initial report fetching and then selectively fetch each
1100 * report we are interested in.
1102 hdev
->quirks
|= HID_QUIRK_NO_INIT_REPORTS
;
1104 td
= devm_kzalloc(&hdev
->dev
, sizeof(struct mt_device
), GFP_KERNEL
);
1106 dev_err(&hdev
->dev
, "cannot allocate multitouch data\n");
1109 td
->mtclass
= *mtclass
;
1111 td
->maxcontact_report_id
= -1;
1112 td
->inputmode_value
= MT_INPUTMODE_TOUCHSCREEN
;
1114 td
->mt_report_id
= -1;
1115 hid_set_drvdata(hdev
, td
);
1117 td
->fields
= devm_kzalloc(&hdev
->dev
, sizeof(struct mt_fields
),
1120 dev_err(&hdev
->dev
, "cannot allocate multitouch fields data\n");
1124 if (id
->vendor
== HID_ANY_ID
&& id
->product
== HID_ANY_ID
)
1125 td
->serial_maybe
= true;
1127 ret
= hid_parse(hdev
);
1131 ret
= hid_hw_start(hdev
, HID_CONNECT_DEFAULT
);
1135 ret
= sysfs_create_group(&hdev
->dev
.kobj
, &mt_attribute_group
);
1137 mt_set_maxcontacts(hdev
);
1138 mt_set_input_mode(hdev
);
1140 /* release .fields memory as it is not used anymore */
1141 devm_kfree(&hdev
->dev
, td
->fields
);
1148 static int mt_reset_resume(struct hid_device
*hdev
)
1150 mt_set_maxcontacts(hdev
);
1151 mt_set_input_mode(hdev
);
1155 static int mt_resume(struct hid_device
*hdev
)
1157 /* Some Elan legacy devices require SET_IDLE to be set on resume.
1158 * It should be safe to send it to other devices too.
1159 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
1161 hid_hw_idle(hdev
, 0, 0, HID_REQ_SET_IDLE
);
1167 static void mt_remove(struct hid_device
*hdev
)
1169 sysfs_remove_group(&hdev
->dev
.kobj
, &mt_attribute_group
);
1174 * This list contains only:
1175 * - VID/PID of products not working with the default multitouch handling
1176 * - 2 generic rules.
1177 * So there is no point in adding here any device with MT_CLS_DEFAULT.
1179 static const struct hid_device_id mt_devices
[] = {
1182 { .driver_data
= MT_CLS_3M
,
1183 MT_USB_DEVICE(USB_VENDOR_ID_3M
,
1184 USB_DEVICE_ID_3M1968
) },
1185 { .driver_data
= MT_CLS_3M
,
1186 MT_USB_DEVICE(USB_VENDOR_ID_3M
,
1187 USB_DEVICE_ID_3M2256
) },
1188 { .driver_data
= MT_CLS_3M
,
1189 MT_USB_DEVICE(USB_VENDOR_ID_3M
,
1190 USB_DEVICE_ID_3M3266
) },
1193 { .driver_data
= MT_CLS_EXPORT_ALL_INPUTS
,
1194 MT_USB_DEVICE(USB_VENDOR_ID_ANTON
,
1195 USB_DEVICE_ID_ANTON_TOUCH_PAD
) },
1198 { .driver_data
= MT_CLS_SERIAL
,
1199 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL
,
1200 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER
) },
1202 /* Baanto multitouch devices */
1203 { .driver_data
= MT_CLS_NSMU
,
1204 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO
,
1205 USB_DEVICE_ID_BAANTO_MT_190W2
) },
1208 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
1209 MT_USB_DEVICE(USB_VENDOR_ID_CANDO
,
1210 USB_DEVICE_ID_CANDO_MULTI_TOUCH
) },
1211 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
1212 MT_USB_DEVICE(USB_VENDOR_ID_CANDO
,
1213 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6
) },
1215 /* Chunghwa Telecom touch panels */
1216 { .driver_data
= MT_CLS_NSMU
,
1217 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT
,
1218 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH
) },
1220 /* CJTouch panels */
1221 { .driver_data
= MT_CLS_NSMU
,
1222 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH
,
1223 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020
) },
1224 { .driver_data
= MT_CLS_NSMU
,
1225 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH
,
1226 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040
) },
1228 /* CVTouch panels */
1229 { .driver_data
= MT_CLS_NSMU
,
1230 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH
,
1231 USB_DEVICE_ID_CVTOUCH_SCREEN
) },
1233 /* eGalax devices (resistive) */
1234 { .driver_data
= MT_CLS_EGALAX
,
1235 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1236 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D
) },
1237 { .driver_data
= MT_CLS_EGALAX
,
1238 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1239 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E
) },
1241 /* eGalax devices (capacitive) */
1242 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1243 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1244 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207
) },
1245 { .driver_data
= MT_CLS_EGALAX
,
1246 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1247 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C
) },
1248 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1249 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1250 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224
) },
1251 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1252 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1253 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A
) },
1254 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1255 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1256 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E
) },
1257 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1258 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1259 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262
) },
1260 { .driver_data
= MT_CLS_EGALAX
,
1261 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1262 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B
) },
1263 { .driver_data
= MT_CLS_EGALAX
,
1264 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1265 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1
) },
1266 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1267 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1268 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA
) },
1269 { .driver_data
= MT_CLS_EGALAX
,
1270 HID_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1271 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4
) },
1272 { .driver_data
= MT_CLS_EGALAX
,
1273 HID_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1274 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0
) },
1275 { .driver_data
= MT_CLS_EGALAX
,
1276 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1277 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA
) },
1278 { .driver_data
= MT_CLS_EGALAX
,
1279 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1280 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302
) },
1281 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1282 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1283 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349
) },
1284 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1285 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1286 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7
) },
1287 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1288 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1289 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001
) },
1291 /* Elitegroup panel */
1292 { .driver_data
= MT_CLS_SERIAL
,
1293 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP
,
1294 USB_DEVICE_ID_ELITEGROUP_05D8
) },
1296 /* Flatfrog Panels */
1297 { .driver_data
= MT_CLS_FLATFROG
,
1298 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG
,
1299 USB_DEVICE_ID_MULTITOUCH_3200
) },
1301 /* FocalTech Panels */
1302 { .driver_data
= MT_CLS_SERIAL
,
1303 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL
,
1304 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH
) },
1306 /* GeneralTouch panel */
1307 { .driver_data
= MT_CLS_GENERALTOUCH_TWOFINGERS
,
1308 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1309 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS
) },
1310 { .driver_data
= MT_CLS_GENERALTOUCH_PWT_TENFINGERS
,
1311 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1312 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS
) },
1313 { .driver_data
= MT_CLS_GENERALTOUCH_TWOFINGERS
,
1314 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1315 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101
) },
1316 { .driver_data
= MT_CLS_GENERALTOUCH_PWT_TENFINGERS
,
1317 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1318 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102
) },
1319 { .driver_data
= MT_CLS_GENERALTOUCH_PWT_TENFINGERS
,
1320 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1321 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106
) },
1322 { .driver_data
= MT_CLS_GENERALTOUCH_PWT_TENFINGERS
,
1323 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1324 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A
) },
1325 { .driver_data
= MT_CLS_GENERALTOUCH_PWT_TENFINGERS
,
1326 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1327 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100
) },
1329 /* Gametel game controller */
1330 { .driver_data
= MT_CLS_NSMU
,
1331 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL
,
1332 USB_DEVICE_ID_GAMETEL_MT_MODE
) },
1334 /* GoodTouch panels */
1335 { .driver_data
= MT_CLS_NSMU
,
1336 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH
,
1337 USB_DEVICE_ID_GOODTOUCH_000f
) },
1340 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTID
,
1341 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT
,
1342 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH
) },
1344 /* Ilitek dual touch panel */
1345 { .driver_data
= MT_CLS_NSMU
,
1346 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK
,
1347 USB_DEVICE_ID_ILITEK_MULTITOUCH
) },
1350 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
1351 MT_USB_DEVICE(USB_VENDOR_ID_ASUS
,
1352 USB_DEVICE_ID_ASUS_T91MT
)},
1353 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
1354 MT_USB_DEVICE(USB_VENDOR_ID_ASUS
,
1355 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO
) },
1356 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
1357 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX
,
1358 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART
) },
1360 /* Panasonic panels */
1361 { .driver_data
= MT_CLS_PANASONIC
,
1362 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC
,
1363 USB_DEVICE_ID_PANABOARD_UBT780
) },
1364 { .driver_data
= MT_CLS_PANASONIC
,
1365 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC
,
1366 USB_DEVICE_ID_PANABOARD_UBT880
) },
1369 { .driver_data
= MT_CLS_NSMU
,
1370 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK
,
1371 USB_DEVICE_ID_NOVATEK_PCT
) },
1373 /* PixArt optical touch screen */
1374 { .driver_data
= MT_CLS_INRANGE_CONTACTNUMBER
,
1375 MT_USB_DEVICE(USB_VENDOR_ID_PIXART
,
1376 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN
) },
1377 { .driver_data
= MT_CLS_INRANGE_CONTACTNUMBER
,
1378 MT_USB_DEVICE(USB_VENDOR_ID_PIXART
,
1379 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1
) },
1380 { .driver_data
= MT_CLS_INRANGE_CONTACTNUMBER
,
1381 MT_USB_DEVICE(USB_VENDOR_ID_PIXART
,
1382 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2
) },
1384 /* PixCir-based panels */
1385 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTID
,
1386 MT_USB_DEVICE(USB_VENDOR_ID_CANDO
,
1387 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH
) },
1389 /* Quanta-based panels */
1390 { .driver_data
= MT_CLS_CONFIDENCE_CONTACT_ID
,
1391 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA
,
1392 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001
) },
1394 /* Stantum panels */
1395 { .driver_data
= MT_CLS_CONFIDENCE
,
1396 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM
,
1397 USB_DEVICE_ID_MTP_STM
)},
1399 /* TopSeed panels */
1400 { .driver_data
= MT_CLS_TOPSEED
,
1401 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2
,
1402 USB_DEVICE_ID_TOPSEED2_PERIPAD_701
) },
1404 /* Touch International panels */
1405 { .driver_data
= MT_CLS_NSMU
,
1406 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL
,
1407 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH
) },
1410 { .driver_data
= MT_CLS_NSMU
,
1411 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC
,
1412 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709
) },
1413 { .driver_data
= MT_CLS_NSMU
,
1414 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC
,
1415 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19
) },
1418 { .driver_data
= MT_CLS_VTL
,
1419 MT_USB_DEVICE(USB_VENDOR_ID_VTL
,
1420 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F
) },
1422 /* Wistron panels */
1423 { .driver_data
= MT_CLS_NSMU
,
1424 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON
,
1425 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH
) },
1428 { .driver_data
= MT_CLS_NSMU
,
1429 MT_USB_DEVICE(USB_VENDOR_ID_XAT
,
1430 USB_DEVICE_ID_XAT_CSR
) },
1433 { .driver_data
= MT_CLS_NSMU
,
1434 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1435 USB_DEVICE_ID_XIROKU_SPX
) },
1436 { .driver_data
= MT_CLS_NSMU
,
1437 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1438 USB_DEVICE_ID_XIROKU_MPX
) },
1439 { .driver_data
= MT_CLS_NSMU
,
1440 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1441 USB_DEVICE_ID_XIROKU_CSR
) },
1442 { .driver_data
= MT_CLS_NSMU
,
1443 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1444 USB_DEVICE_ID_XIROKU_SPX1
) },
1445 { .driver_data
= MT_CLS_NSMU
,
1446 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1447 USB_DEVICE_ID_XIROKU_MPX1
) },
1448 { .driver_data
= MT_CLS_NSMU
,
1449 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1450 USB_DEVICE_ID_XIROKU_CSR1
) },
1451 { .driver_data
= MT_CLS_NSMU
,
1452 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1453 USB_DEVICE_ID_XIROKU_SPX2
) },
1454 { .driver_data
= MT_CLS_NSMU
,
1455 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1456 USB_DEVICE_ID_XIROKU_MPX2
) },
1457 { .driver_data
= MT_CLS_NSMU
,
1458 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1459 USB_DEVICE_ID_XIROKU_CSR2
) },
1461 /* Generic MT device */
1462 { HID_DEVICE(HID_BUS_ANY
, HID_GROUP_MULTITOUCH
, HID_ANY_ID
, HID_ANY_ID
) },
1464 /* Generic Win 8 certified MT device */
1465 { .driver_data
= MT_CLS_WIN_8
,
1466 HID_DEVICE(HID_BUS_ANY
, HID_GROUP_MULTITOUCH_WIN_8
,
1467 HID_ANY_ID
, HID_ANY_ID
) },
1470 MODULE_DEVICE_TABLE(hid
, mt_devices
);
1472 static const struct hid_usage_id mt_grabbed_usages
[] = {
1473 { HID_ANY_ID
, HID_ANY_ID
, HID_ANY_ID
},
1474 { HID_ANY_ID
- 1, HID_ANY_ID
- 1, HID_ANY_ID
- 1}
1477 static struct hid_driver mt_driver
= {
1478 .name
= "hid-multitouch",
1479 .id_table
= mt_devices
,
1481 .remove
= mt_remove
,
1482 .input_mapping
= mt_input_mapping
,
1483 .input_mapped
= mt_input_mapped
,
1484 .input_configured
= mt_input_configured
,
1485 .feature_mapping
= mt_feature_mapping
,
1486 .usage_table
= mt_grabbed_usages
,
1488 .report
= mt_report
,
1490 .reset_resume
= mt_reset_resume
,
1491 .resume
= mt_resume
,
1494 module_hid_driver(mt_driver
);