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_CONFIDENCE (1 << 7)
65 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
66 #define MT_QUIRK_NO_AREA (1 << 9)
67 #define MT_QUIRK_IGNORE_DUPLICATES (1 << 10)
68 #define MT_QUIRK_HOVERING (1 << 11)
69 #define MT_QUIRK_CONTACT_CNT_ACCURATE (1 << 12)
70 #define MT_QUIRK_FORCE_GET_FEATURE (1 << 13)
71 #define MT_QUIRK_FIX_CONST_CONTACT_ID (1 << 14)
72 #define MT_QUIRK_TOUCH_SIZE_SCALING (1 << 15)
74 #define MT_INPUTMODE_TOUCHSCREEN 0x02
75 #define MT_INPUTMODE_TOUCHPAD 0x03
77 #define MT_BUTTONTYPE_CLICKPAD 0
80 __s32 x
, y
, cx
, cy
, p
, w
, h
;
81 __s32 contactid
; /* the device ContactID assigned to this slot */
82 bool touch_state
; /* is the touch valid? */
83 bool inrange_state
; /* is the finger in proximity of the sensor? */
84 bool confidence_state
; /* is the touch made by a finger? */
88 __s32 name
; /* MT_CLS */
90 __s32 sn_move
; /* Signal/noise ratio for move events */
91 __s32 sn_width
; /* Signal/noise ratio for width events */
92 __s32 sn_height
; /* Signal/noise ratio for height events */
93 __s32 sn_pressure
; /* Signal/noise ratio for pressure events */
95 bool is_indirect
; /* true for touchpads */
96 bool export_all_inputs
; /* do not ignore mouse, keyboards, etc... */
100 unsigned usages
[HID_MAX_FIELDS
];
105 struct mt_slot curdata
; /* placeholder of incoming data */
106 struct mt_class mtclass
; /* our mt device class */
107 struct mt_fields
*fields
; /* temporary placeholder for storing the
109 int cc_index
; /* contact count field index in the report */
110 int cc_value_index
; /* contact count value index in the field */
111 unsigned last_slot_field
; /* the last field of a slot */
112 unsigned mt_report_id
; /* the report ID of the multitouch device */
113 unsigned long initial_quirks
; /* initial quirks state */
114 __s16 inputmode
; /* InputMode HID feature, -1 if non-existent */
115 __s16 inputmode_index
; /* InputMode HID feature index in the report */
116 __s16 maxcontact_report_id
; /* Maximum Contact Number HID feature,
117 -1 if non-existent */
118 __u8 inputmode_value
; /* InputMode HID feature value */
119 __u8 num_received
; /* how many contacts we received */
120 __u8 num_expected
; /* expected last contact index */
122 __u8 touches_by_report
; /* how many touches are present in one report:
123 * 1 means we should use a serial protocol
124 * > 1 means hybrid (multitouch) protocol */
125 __u8 buttons_count
; /* number of physical buttons per touchpad */
126 bool is_buttonpad
; /* is this device a button pad? */
127 bool serial_maybe
; /* need to check for serial protocol */
128 bool curvalid
; /* is the current contact valid? */
129 unsigned mt_flags
; /* flags to pass to input-mt */
132 static void mt_post_parse_default_settings(struct mt_device
*td
);
133 static void mt_post_parse(struct mt_device
*td
);
135 /* classes of device behavior */
136 #define MT_CLS_DEFAULT 0x0001
138 #define MT_CLS_SERIAL 0x0002
139 #define MT_CLS_CONFIDENCE 0x0003
140 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
141 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
142 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
143 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
144 /* reserved 0x0008 */
145 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
146 #define MT_CLS_NSMU 0x000a
147 /* reserved 0x0010 */
148 /* reserved 0x0011 */
149 #define MT_CLS_WIN_8 0x0012
150 #define MT_CLS_EXPORT_ALL_INPUTS 0x0013
152 /* vendor specific classes */
153 #define MT_CLS_3M 0x0101
154 /* reserved 0x0102 */
155 #define MT_CLS_EGALAX 0x0103
156 #define MT_CLS_EGALAX_SERIAL 0x0104
157 #define MT_CLS_TOPSEED 0x0105
158 #define MT_CLS_PANASONIC 0x0106
159 #define MT_CLS_FLATFROG 0x0107
160 #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108
161 #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109
162 #define MT_CLS_LG 0x010a
163 #define MT_CLS_VTL 0x0110
165 #define MT_DEFAULT_MAXCONTACT 10
166 #define MT_MAX_MAXCONTACT 250
168 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
169 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
172 * these device-dependent functions determine what slot corresponds
173 * to a valid contact that was just read.
176 static int cypress_compute_slot(struct mt_device
*td
)
178 if (td
->curdata
.contactid
!= 0 || td
->num_received
== 0)
179 return td
->curdata
.contactid
;
184 static struct mt_class mt_classes
[] = {
185 { .name
= MT_CLS_DEFAULT
,
186 .quirks
= MT_QUIRK_ALWAYS_VALID
|
187 MT_QUIRK_CONTACT_CNT_ACCURATE
},
188 { .name
= MT_CLS_NSMU
,
189 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
},
190 { .name
= MT_CLS_SERIAL
,
191 .quirks
= MT_QUIRK_ALWAYS_VALID
},
192 { .name
= MT_CLS_CONFIDENCE
,
193 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
},
194 { .name
= MT_CLS_CONFIDENCE_CONTACT_ID
,
195 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
|
196 MT_QUIRK_SLOT_IS_CONTACTID
},
197 { .name
= MT_CLS_CONFIDENCE_MINUS_ONE
,
198 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
|
199 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE
},
200 { .name
= MT_CLS_DUAL_INRANGE_CONTACTID
,
201 .quirks
= MT_QUIRK_VALID_IS_INRANGE
|
202 MT_QUIRK_SLOT_IS_CONTACTID
,
204 { .name
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
205 .quirks
= MT_QUIRK_VALID_IS_INRANGE
|
206 MT_QUIRK_SLOT_IS_CONTACTNUMBER
,
208 { .name
= MT_CLS_INRANGE_CONTACTNUMBER
,
209 .quirks
= MT_QUIRK_VALID_IS_INRANGE
|
210 MT_QUIRK_SLOT_IS_CONTACTNUMBER
},
211 { .name
= MT_CLS_WIN_8
,
212 .quirks
= MT_QUIRK_ALWAYS_VALID
|
213 MT_QUIRK_IGNORE_DUPLICATES
|
215 MT_QUIRK_CONTACT_CNT_ACCURATE
},
216 { .name
= MT_CLS_EXPORT_ALL_INPUTS
,
217 .quirks
= MT_QUIRK_ALWAYS_VALID
|
218 MT_QUIRK_CONTACT_CNT_ACCURATE
,
219 .export_all_inputs
= true },
222 * vendor specific classes
225 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
|
226 MT_QUIRK_SLOT_IS_CONTACTID
|
227 MT_QUIRK_TOUCH_SIZE_SCALING
,
233 { .name
= MT_CLS_EGALAX
,
234 .quirks
= MT_QUIRK_SLOT_IS_CONTACTID
|
235 MT_QUIRK_VALID_IS_INRANGE
,
239 { .name
= MT_CLS_EGALAX_SERIAL
,
240 .quirks
= MT_QUIRK_SLOT_IS_CONTACTID
|
241 MT_QUIRK_ALWAYS_VALID
,
245 { .name
= MT_CLS_TOPSEED
,
246 .quirks
= MT_QUIRK_ALWAYS_VALID
,
250 { .name
= MT_CLS_PANASONIC
,
251 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
,
253 { .name
= MT_CLS_GENERALTOUCH_TWOFINGERS
,
254 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
|
255 MT_QUIRK_VALID_IS_INRANGE
|
256 MT_QUIRK_SLOT_IS_CONTACTID
,
259 { .name
= MT_CLS_GENERALTOUCH_PWT_TENFINGERS
,
260 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
|
261 MT_QUIRK_SLOT_IS_CONTACTID
264 { .name
= MT_CLS_FLATFROG
,
265 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
|
271 .quirks
= MT_QUIRK_ALWAYS_VALID
|
272 MT_QUIRK_FIX_CONST_CONTACT_ID
|
273 MT_QUIRK_IGNORE_DUPLICATES
|
275 MT_QUIRK_CONTACT_CNT_ACCURATE
},
276 { .name
= MT_CLS_VTL
,
277 .quirks
= MT_QUIRK_ALWAYS_VALID
|
278 MT_QUIRK_CONTACT_CNT_ACCURATE
|
279 MT_QUIRK_FORCE_GET_FEATURE
,
284 static ssize_t
mt_show_quirks(struct device
*dev
,
285 struct device_attribute
*attr
,
288 struct hid_device
*hdev
= to_hid_device(dev
);
289 struct mt_device
*td
= hid_get_drvdata(hdev
);
291 return sprintf(buf
, "%u\n", td
->mtclass
.quirks
);
294 static ssize_t
mt_set_quirks(struct device
*dev
,
295 struct device_attribute
*attr
,
296 const char *buf
, size_t count
)
298 struct hid_device
*hdev
= to_hid_device(dev
);
299 struct mt_device
*td
= hid_get_drvdata(hdev
);
303 if (kstrtoul(buf
, 0, &val
))
306 td
->mtclass
.quirks
= val
;
308 if (td
->cc_index
< 0)
309 td
->mtclass
.quirks
&= ~MT_QUIRK_CONTACT_CNT_ACCURATE
;
314 static DEVICE_ATTR(quirks
, S_IWUSR
| S_IRUGO
, mt_show_quirks
, mt_set_quirks
);
316 static struct attribute
*sysfs_attrs
[] = {
317 &dev_attr_quirks
.attr
,
321 static struct attribute_group mt_attribute_group
= {
325 static void mt_get_feature(struct hid_device
*hdev
, struct hid_report
*report
)
327 struct mt_device
*td
= hid_get_drvdata(hdev
);
328 int ret
, size
= hid_report_len(report
);
332 * Do not fetch the feature report if the device has been explicitly
333 * marked as non-capable.
335 if (td
->initial_quirks
& HID_QUIRK_NO_INIT_REPORTS
)
338 buf
= hid_alloc_report_buf(report
, GFP_KERNEL
);
342 ret
= hid_hw_raw_request(hdev
, report
->id
, buf
, size
,
343 HID_FEATURE_REPORT
, HID_REQ_GET_REPORT
);
345 dev_warn(&hdev
->dev
, "failed to fetch feature %d\n",
348 ret
= hid_report_raw_event(hdev
, HID_FEATURE_REPORT
, buf
,
351 dev_warn(&hdev
->dev
, "failed to report feature\n");
357 static void mt_feature_mapping(struct hid_device
*hdev
,
358 struct hid_field
*field
, struct hid_usage
*usage
)
360 struct mt_device
*td
= hid_get_drvdata(hdev
);
362 switch (usage
->hid
) {
363 case HID_DG_INPUTMODE
:
364 /* Ignore if value index is out of bounds. */
365 if (usage
->usage_index
>= field
->report_count
) {
366 dev_err(&hdev
->dev
, "HID_DG_INPUTMODE out of range\n");
370 if (td
->inputmode
< 0) {
371 td
->inputmode
= field
->report
->id
;
372 td
->inputmode_index
= usage
->usage_index
;
375 * Some elan panels wrongly declare 2 input mode
376 * features, and silently ignore when we set the
377 * value in the second field. Skip the second feature
378 * and hope for the best.
381 "Ignoring the extra HID_DG_INPUTMODE\n");
385 case HID_DG_CONTACTMAX
:
386 mt_get_feature(hdev
, field
->report
);
388 td
->maxcontact_report_id
= field
->report
->id
;
389 td
->maxcontacts
= field
->value
[0];
390 if (!td
->maxcontacts
&&
391 field
->logical_maximum
<= MT_MAX_MAXCONTACT
)
392 td
->maxcontacts
= field
->logical_maximum
;
393 if (td
->mtclass
.maxcontacts
)
394 /* check if the maxcontacts is given by the class */
395 td
->maxcontacts
= td
->mtclass
.maxcontacts
;
398 case HID_DG_BUTTONTYPE
:
399 if (usage
->usage_index
>= field
->report_count
) {
400 dev_err(&hdev
->dev
, "HID_DG_BUTTONTYPE out of range\n");
404 mt_get_feature(hdev
, field
->report
);
405 if (field
->value
[usage
->usage_index
] == MT_BUTTONTYPE_CLICKPAD
)
406 td
->is_buttonpad
= true;
410 /* Retrieve the Win8 blob once to enable some devices */
411 if (usage
->usage_index
== 0)
412 mt_get_feature(hdev
, field
->report
);
417 static void set_abs(struct input_dev
*input
, unsigned int code
,
418 struct hid_field
*field
, int snratio
)
420 int fmin
= field
->logical_minimum
;
421 int fmax
= field
->logical_maximum
;
422 int fuzz
= snratio
? (fmax
- fmin
) / snratio
: 0;
423 input_set_abs_params(input
, code
, fmin
, fmax
, fuzz
, 0);
424 input_abs_set_res(input
, code
, hidinput_calc_abs_res(field
, code
));
427 static void mt_store_field(struct hid_usage
*usage
, struct mt_device
*td
,
428 struct hid_input
*hi
)
430 struct mt_fields
*f
= td
->fields
;
432 if (f
->length
>= HID_MAX_FIELDS
)
435 f
->usages
[f
->length
++] = usage
->hid
;
438 static int mt_touch_input_mapping(struct hid_device
*hdev
, struct hid_input
*hi
,
439 struct hid_field
*field
, struct hid_usage
*usage
,
440 unsigned long **bit
, int *max
)
442 struct mt_device
*td
= hid_get_drvdata(hdev
);
443 struct mt_class
*cls
= &td
->mtclass
;
445 struct hid_usage
*prev_usage
= NULL
;
447 if (field
->application
== HID_DG_TOUCHSCREEN
)
448 td
->mt_flags
|= INPUT_MT_DIRECT
;
451 * Model touchscreens providing buttons as touchpads.
453 if (field
->application
== HID_DG_TOUCHPAD
||
454 (usage
->hid
& HID_USAGE_PAGE
) == HID_UP_BUTTON
) {
455 td
->mt_flags
|= INPUT_MT_POINTER
;
456 td
->inputmode_value
= MT_INPUTMODE_TOUCHPAD
;
459 /* count the buttons on touchpads */
460 if ((usage
->hid
& HID_USAGE_PAGE
) == HID_UP_BUTTON
)
463 if (usage
->usage_index
)
464 prev_usage
= &field
->usage
[usage
->usage_index
- 1];
466 switch (usage
->hid
& HID_USAGE_PAGE
) {
469 switch (usage
->hid
) {
471 if (prev_usage
&& (prev_usage
->hid
== usage
->hid
)) {
472 hid_map_usage(hi
, usage
, bit
, max
,
473 EV_ABS
, ABS_MT_TOOL_X
);
474 set_abs(hi
->input
, ABS_MT_TOOL_X
, field
,
477 hid_map_usage(hi
, usage
, bit
, max
,
478 EV_ABS
, ABS_MT_POSITION_X
);
479 set_abs(hi
->input
, ABS_MT_POSITION_X
, field
,
483 mt_store_field(usage
, td
, hi
);
486 if (prev_usage
&& (prev_usage
->hid
== usage
->hid
)) {
487 hid_map_usage(hi
, usage
, bit
, max
,
488 EV_ABS
, ABS_MT_TOOL_Y
);
489 set_abs(hi
->input
, ABS_MT_TOOL_Y
, field
,
492 hid_map_usage(hi
, usage
, bit
, max
,
493 EV_ABS
, ABS_MT_POSITION_Y
);
494 set_abs(hi
->input
, ABS_MT_POSITION_Y
, field
,
498 mt_store_field(usage
, td
, hi
);
503 case HID_UP_DIGITIZER
:
504 switch (usage
->hid
) {
506 if (cls
->quirks
& MT_QUIRK_HOVERING
) {
507 hid_map_usage(hi
, usage
, bit
, max
,
508 EV_ABS
, ABS_MT_DISTANCE
);
509 input_set_abs_params(hi
->input
,
510 ABS_MT_DISTANCE
, 0, 1, 0, 0);
512 mt_store_field(usage
, td
, hi
);
514 case HID_DG_CONFIDENCE
:
515 if (cls
->name
== MT_CLS_WIN_8
&&
516 field
->application
== HID_DG_TOUCHPAD
)
517 cls
->quirks
|= MT_QUIRK_CONFIDENCE
;
518 mt_store_field(usage
, td
, hi
);
520 case HID_DG_TIPSWITCH
:
521 hid_map_usage(hi
, usage
, bit
, max
, EV_KEY
, BTN_TOUCH
);
522 input_set_capability(hi
->input
, EV_KEY
, BTN_TOUCH
);
523 mt_store_field(usage
, td
, hi
);
525 case HID_DG_CONTACTID
:
526 mt_store_field(usage
, td
, hi
);
527 td
->touches_by_report
++;
528 td
->mt_report_id
= field
->report
->id
;
531 hid_map_usage(hi
, usage
, bit
, max
,
532 EV_ABS
, ABS_MT_TOUCH_MAJOR
);
533 if (!(cls
->quirks
& MT_QUIRK_NO_AREA
))
534 set_abs(hi
->input
, ABS_MT_TOUCH_MAJOR
, field
,
536 mt_store_field(usage
, td
, hi
);
539 hid_map_usage(hi
, usage
, bit
, max
,
540 EV_ABS
, ABS_MT_TOUCH_MINOR
);
541 if (!(cls
->quirks
& MT_QUIRK_NO_AREA
)) {
542 set_abs(hi
->input
, ABS_MT_TOUCH_MINOR
, field
,
544 input_set_abs_params(hi
->input
,
545 ABS_MT_ORIENTATION
, 0, 1, 0, 0);
547 mt_store_field(usage
, td
, hi
);
549 case HID_DG_TIPPRESSURE
:
550 hid_map_usage(hi
, usage
, bit
, max
,
551 EV_ABS
, ABS_MT_PRESSURE
);
552 set_abs(hi
->input
, ABS_MT_PRESSURE
, field
,
554 mt_store_field(usage
, td
, hi
);
556 case HID_DG_CONTACTCOUNT
:
557 /* Ignore if indexes are out of bounds. */
558 if (field
->index
>= field
->report
->maxfield
||
559 usage
->usage_index
>= field
->report_count
)
561 td
->cc_index
= field
->index
;
562 td
->cc_value_index
= usage
->usage_index
;
564 case HID_DG_CONTACTMAX
:
565 /* we don't set td->last_slot_field as contactcount and
566 * contact max are global to the report */
569 /* Legacy devices use TIPSWITCH and not TOUCH.
570 * Let's just ignore this field. */
573 /* let hid-input decide for the others */
577 code
= BTN_MOUSE
+ ((usage
->hid
- 1) & HID_USAGE
);
579 * MS PTP spec says that external buttons left and right have
582 if (cls
->name
== MT_CLS_WIN_8
&&
583 field
->application
== HID_DG_TOUCHPAD
&&
584 (usage
->hid
& HID_USAGE
) > 1)
586 hid_map_usage(hi
, usage
, bit
, max
, EV_KEY
, code
);
587 input_set_capability(hi
->input
, EV_KEY
, code
);
591 /* we do not want to map these: no input-oriented meaning */
598 static int mt_touch_input_mapped(struct hid_device
*hdev
, struct hid_input
*hi
,
599 struct hid_field
*field
, struct hid_usage
*usage
,
600 unsigned long **bit
, int *max
)
602 if (usage
->type
== EV_KEY
|| usage
->type
== EV_ABS
)
603 set_bit(usage
->type
, hi
->input
->evbit
);
608 static int mt_compute_slot(struct mt_device
*td
, struct input_dev
*input
)
610 __s32 quirks
= td
->mtclass
.quirks
;
612 if (quirks
& MT_QUIRK_SLOT_IS_CONTACTID
)
613 return td
->curdata
.contactid
;
615 if (quirks
& MT_QUIRK_CYPRESS
)
616 return cypress_compute_slot(td
);
618 if (quirks
& MT_QUIRK_SLOT_IS_CONTACTNUMBER
)
619 return td
->num_received
;
621 if (quirks
& MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE
)
622 return td
->curdata
.contactid
- 1;
624 return input_mt_get_slot_by_key(input
, td
->curdata
.contactid
);
628 * this function is called when a whole contact has been processed,
629 * so that it can assign it to a slot and store the data there
631 static void mt_complete_slot(struct mt_device
*td
, struct input_dev
*input
)
633 if ((td
->mtclass
.quirks
& MT_QUIRK_CONTACT_CNT_ACCURATE
) &&
634 td
->num_received
>= td
->num_expected
)
637 if (td
->curvalid
|| (td
->mtclass
.quirks
& MT_QUIRK_ALWAYS_VALID
)) {
639 int slotnum
= mt_compute_slot(td
, input
);
640 struct mt_slot
*s
= &td
->curdata
;
641 struct input_mt
*mt
= input
->mt
;
643 if (slotnum
< 0 || slotnum
>= td
->maxcontacts
)
646 if ((td
->mtclass
.quirks
& MT_QUIRK_IGNORE_DUPLICATES
) && mt
) {
647 struct input_mt_slot
*slot
= &mt
->slots
[slotnum
];
648 if (input_mt_is_active(slot
) &&
649 input_mt_is_used(mt
, slot
))
653 if (!(td
->mtclass
.quirks
& MT_QUIRK_CONFIDENCE
))
654 s
->confidence_state
= 1;
655 active
= (s
->touch_state
|| s
->inrange_state
) &&
658 input_mt_slot(input
, slotnum
);
659 input_mt_report_slot_state(input
, MT_TOOL_FINGER
, active
);
661 /* this finger is in proximity of the sensor */
662 int wide
= (s
->w
> s
->h
);
663 int major
= max(s
->w
, s
->h
);
664 int minor
= min(s
->w
, s
->h
);
667 * divided by two to match visual scale of touch
668 * for devices with this quirk
670 if (td
->mtclass
.quirks
& MT_QUIRK_TOUCH_SIZE_SCALING
) {
675 input_event(input
, EV_ABS
, ABS_MT_POSITION_X
, s
->x
);
676 input_event(input
, EV_ABS
, ABS_MT_POSITION_Y
, s
->y
);
677 input_event(input
, EV_ABS
, ABS_MT_TOOL_X
, s
->cx
);
678 input_event(input
, EV_ABS
, ABS_MT_TOOL_Y
, s
->cy
);
679 input_event(input
, EV_ABS
, ABS_MT_DISTANCE
,
681 input_event(input
, EV_ABS
, ABS_MT_ORIENTATION
, wide
);
682 input_event(input
, EV_ABS
, ABS_MT_PRESSURE
, s
->p
);
683 input_event(input
, EV_ABS
, ABS_MT_TOUCH_MAJOR
, major
);
684 input_event(input
, EV_ABS
, ABS_MT_TOUCH_MINOR
, minor
);
692 * this function is called when a whole packet has been received and processed,
693 * so that it can decide what to send to the input layer.
695 static void mt_sync_frame(struct mt_device
*td
, struct input_dev
*input
)
697 input_mt_sync_frame(input
);
699 td
->num_received
= 0;
702 static int mt_touch_event(struct hid_device
*hid
, struct hid_field
*field
,
703 struct hid_usage
*usage
, __s32 value
)
705 /* we will handle the hidinput part later, now remains hiddev */
706 if (hid
->claimed
& HID_CLAIMED_HIDDEV
&& hid
->hiddev_hid_event
)
707 hid
->hiddev_hid_event(hid
, field
, usage
, value
);
712 static void mt_process_mt_event(struct hid_device
*hid
, struct hid_field
*field
,
713 struct hid_usage
*usage
, __s32 value
)
715 struct mt_device
*td
= hid_get_drvdata(hid
);
716 __s32 quirks
= td
->mtclass
.quirks
;
717 struct input_dev
*input
= field
->hidinput
->input
;
719 if (hid
->claimed
& HID_CLAIMED_INPUT
) {
720 switch (usage
->hid
) {
722 if (quirks
& MT_QUIRK_VALID_IS_INRANGE
)
723 td
->curvalid
= value
;
724 if (quirks
& MT_QUIRK_HOVERING
)
725 td
->curdata
.inrange_state
= value
;
727 case HID_DG_TIPSWITCH
:
728 if (quirks
& MT_QUIRK_NOT_SEEN_MEANS_UP
)
729 td
->curvalid
= value
;
730 td
->curdata
.touch_state
= value
;
732 case HID_DG_CONFIDENCE
:
733 if (quirks
& MT_QUIRK_CONFIDENCE
)
734 td
->curdata
.confidence_state
= value
;
735 if (quirks
& MT_QUIRK_VALID_IS_CONFIDENCE
)
736 td
->curvalid
= value
;
738 case HID_DG_CONTACTID
:
739 td
->curdata
.contactid
= value
;
741 case HID_DG_TIPPRESSURE
:
742 td
->curdata
.p
= value
;
745 if (usage
->code
== ABS_MT_TOOL_X
)
746 td
->curdata
.cx
= value
;
748 td
->curdata
.x
= value
;
751 if (usage
->code
== ABS_MT_TOOL_Y
)
752 td
->curdata
.cy
= value
;
754 td
->curdata
.y
= value
;
757 td
->curdata
.w
= value
;
760 td
->curdata
.h
= value
;
762 case HID_DG_CONTACTCOUNT
:
770 input_event(input
, usage
->type
, usage
->code
,
775 if (usage
->usage_index
+ 1 == field
->report_count
) {
776 /* we only take into account the last report. */
777 if (usage
->hid
== td
->last_slot_field
)
778 mt_complete_slot(td
, field
->hidinput
->input
);
784 static void mt_touch_report(struct hid_device
*hid
, struct hid_report
*report
)
786 struct mt_device
*td
= hid_get_drvdata(hid
);
787 struct hid_field
*field
;
792 * Includes multi-packet support where subsequent
793 * packets are sent with zero contactcount.
795 if (td
->cc_index
>= 0) {
796 struct hid_field
*field
= report
->field
[td
->cc_index
];
797 int value
= field
->value
[td
->cc_value_index
];
799 td
->num_expected
= value
;
802 for (r
= 0; r
< report
->maxfield
; r
++) {
803 field
= report
->field
[r
];
804 count
= field
->report_count
;
806 if (!(HID_MAIN_ITEM_VARIABLE
& field
->flags
))
809 for (n
= 0; n
< count
; n
++)
810 mt_process_mt_event(hid
, field
, &field
->usage
[n
],
814 if (td
->num_received
>= td
->num_expected
)
815 mt_sync_frame(td
, report
->field
[0]->hidinput
->input
);
818 static int mt_touch_input_configured(struct hid_device
*hdev
,
819 struct hid_input
*hi
)
821 struct mt_device
*td
= hid_get_drvdata(hdev
);
822 struct mt_class
*cls
= &td
->mtclass
;
823 struct input_dev
*input
= hi
->input
;
826 if (!td
->maxcontacts
)
827 td
->maxcontacts
= MT_DEFAULT_MAXCONTACT
;
830 if (td
->serial_maybe
)
831 mt_post_parse_default_settings(td
);
833 if (cls
->is_indirect
)
834 td
->mt_flags
|= INPUT_MT_POINTER
;
836 if (cls
->quirks
& MT_QUIRK_NOT_SEEN_MEANS_UP
)
837 td
->mt_flags
|= INPUT_MT_DROP_UNUSED
;
839 /* check for clickpads */
840 if ((td
->mt_flags
& INPUT_MT_POINTER
) && (td
->buttons_count
== 1))
841 td
->is_buttonpad
= true;
843 if (td
->is_buttonpad
)
844 __set_bit(INPUT_PROP_BUTTONPAD
, input
->propbit
);
846 ret
= input_mt_init_slots(input
, td
->maxcontacts
, td
->mt_flags
);
854 static int mt_input_mapping(struct hid_device
*hdev
, struct hid_input
*hi
,
855 struct hid_field
*field
, struct hid_usage
*usage
,
856 unsigned long **bit
, int *max
)
858 struct mt_device
*td
= hid_get_drvdata(hdev
);
861 * If mtclass.export_all_inputs is not set, only map fields from
862 * TouchScreen or TouchPad collections. We need to ignore fields
863 * that belong to other collections such as Mouse that might have
864 * the same GenericDesktop usages.
866 if (!td
->mtclass
.export_all_inputs
&&
867 field
->application
!= HID_DG_TOUCHSCREEN
&&
868 field
->application
!= HID_DG_PEN
&&
869 field
->application
!= HID_DG_TOUCHPAD
&&
870 field
->application
!= HID_GD_KEYBOARD
&&
871 field
->application
!= HID_CP_CONSUMER_CONTROL
)
875 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
877 * The check for mt_report_id ensures we don't process
878 * HID_DG_CONTACTCOUNT from the pen report as it is outside the physical
879 * collection, but within the report ID.
881 if (field
->physical
== HID_DG_STYLUS
)
883 else if ((field
->physical
== 0) &&
884 (field
->report
->id
!= td
->mt_report_id
) &&
885 (td
->mt_report_id
!= -1))
888 if (field
->application
== HID_DG_TOUCHSCREEN
||
889 field
->application
== HID_DG_TOUCHPAD
)
890 return mt_touch_input_mapping(hdev
, hi
, field
, usage
, bit
, max
);
892 /* let hid-core decide for the others */
896 static int mt_input_mapped(struct hid_device
*hdev
, struct hid_input
*hi
,
897 struct hid_field
*field
, struct hid_usage
*usage
,
898 unsigned long **bit
, int *max
)
901 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
904 if (field
->physical
== HID_DG_STYLUS
)
907 if (field
->application
== HID_DG_TOUCHSCREEN
||
908 field
->application
== HID_DG_TOUCHPAD
)
909 return mt_touch_input_mapped(hdev
, hi
, field
, usage
, bit
, max
);
911 /* let hid-core decide for the others */
915 static int mt_event(struct hid_device
*hid
, struct hid_field
*field
,
916 struct hid_usage
*usage
, __s32 value
)
918 struct mt_device
*td
= hid_get_drvdata(hid
);
920 if (field
->report
->id
== td
->mt_report_id
)
921 return mt_touch_event(hid
, field
, usage
, value
);
926 static void mt_report(struct hid_device
*hid
, struct hid_report
*report
)
928 struct mt_device
*td
= hid_get_drvdata(hid
);
929 struct hid_field
*field
= report
->field
[0];
931 if (!(hid
->claimed
& HID_CLAIMED_INPUT
))
934 if (report
->id
== td
->mt_report_id
)
935 return mt_touch_report(hid
, report
);
937 if (field
&& field
->hidinput
&& field
->hidinput
->input
)
938 input_sync(field
->hidinput
->input
);
941 static void mt_set_input_mode(struct hid_device
*hdev
)
943 struct mt_device
*td
= hid_get_drvdata(hdev
);
944 struct hid_report
*r
;
945 struct hid_report_enum
*re
;
946 struct mt_class
*cls
= &td
->mtclass
;
950 if (td
->inputmode
< 0)
953 re
= &(hdev
->report_enum
[HID_FEATURE_REPORT
]);
954 r
= re
->report_id_hash
[td
->inputmode
];
956 if (cls
->quirks
& MT_QUIRK_FORCE_GET_FEATURE
) {
957 report_len
= hid_report_len(r
);
958 buf
= hid_alloc_report_buf(r
, GFP_KERNEL
);
960 hid_err(hdev
, "failed to allocate buffer for report\n");
963 hid_hw_raw_request(hdev
, r
->id
, buf
, report_len
,
968 r
->field
[0]->value
[td
->inputmode_index
] = td
->inputmode_value
;
969 hid_hw_request(hdev
, r
, HID_REQ_SET_REPORT
);
973 static void mt_set_maxcontacts(struct hid_device
*hdev
)
975 struct mt_device
*td
= hid_get_drvdata(hdev
);
976 struct hid_report
*r
;
977 struct hid_report_enum
*re
;
980 if (td
->maxcontact_report_id
< 0)
983 if (!td
->mtclass
.maxcontacts
)
986 re
= &hdev
->report_enum
[HID_FEATURE_REPORT
];
987 r
= re
->report_id_hash
[td
->maxcontact_report_id
];
989 max
= td
->mtclass
.maxcontacts
;
990 fieldmax
= r
->field
[0]->logical_maximum
;
991 max
= min(fieldmax
, max
);
992 if (r
->field
[0]->value
[0] != max
) {
993 r
->field
[0]->value
[0] = max
;
994 hid_hw_request(hdev
, r
, HID_REQ_SET_REPORT
);
999 static void mt_post_parse_default_settings(struct mt_device
*td
)
1001 __s32 quirks
= td
->mtclass
.quirks
;
1003 /* unknown serial device needs special quirks */
1004 if (td
->touches_by_report
== 1) {
1005 quirks
|= MT_QUIRK_ALWAYS_VALID
;
1006 quirks
&= ~MT_QUIRK_NOT_SEEN_MEANS_UP
;
1007 quirks
&= ~MT_QUIRK_VALID_IS_INRANGE
;
1008 quirks
&= ~MT_QUIRK_VALID_IS_CONFIDENCE
;
1009 quirks
&= ~MT_QUIRK_CONTACT_CNT_ACCURATE
;
1012 td
->mtclass
.quirks
= quirks
;
1015 static void mt_post_parse(struct mt_device
*td
)
1017 struct mt_fields
*f
= td
->fields
;
1018 struct mt_class
*cls
= &td
->mtclass
;
1020 if (td
->touches_by_report
> 0) {
1021 int field_count_per_touch
= f
->length
/ td
->touches_by_report
;
1022 td
->last_slot_field
= f
->usages
[field_count_per_touch
- 1];
1025 if (td
->cc_index
< 0)
1026 cls
->quirks
&= ~MT_QUIRK_CONTACT_CNT_ACCURATE
;
1029 static int mt_input_configured(struct hid_device
*hdev
, struct hid_input
*hi
)
1031 struct mt_device
*td
= hid_get_drvdata(hdev
);
1033 const char *suffix
= NULL
;
1034 struct hid_field
*field
= hi
->report
->field
[0];
1037 if (hi
->report
->id
== td
->mt_report_id
) {
1038 ret
= mt_touch_input_configured(hdev
, hi
);
1044 * some egalax touchscreens have "application == HID_DG_TOUCHSCREEN"
1045 * for the stylus. Check this first, and then rely on the application
1048 if (hi
->report
->field
[0]->physical
== HID_DG_STYLUS
) {
1050 /* force BTN_STYLUS to allow tablet matching in udev */
1051 __set_bit(BTN_STYLUS
, hi
->input
->keybit
);
1053 switch (field
->application
) {
1054 case HID_GD_KEYBOARD
:
1055 suffix
= "Keyboard";
1065 /* force BTN_STYLUS to allow tablet matching in udev */
1066 __set_bit(BTN_STYLUS
, hi
->input
->keybit
);
1068 case HID_DG_TOUCHSCREEN
:
1069 /* we do not set suffix = "Touchscreen" */
1071 case HID_DG_TOUCHPAD
:
1072 suffix
= "Touchpad";
1074 case HID_GD_SYSTEM_CONTROL
:
1075 suffix
= "System Control";
1077 case HID_CP_CONSUMER_CONTROL
:
1078 suffix
= "Consumer Control";
1087 name
= devm_kzalloc(&hi
->input
->dev
,
1088 strlen(hdev
->name
) + strlen(suffix
) + 2,
1091 sprintf(name
, "%s %s", hdev
->name
, suffix
);
1092 hi
->input
->name
= name
;
1099 static void mt_fix_const_field(struct hid_field
*field
, unsigned int usage
)
1101 if (field
->usage
[0].hid
!= usage
||
1102 !(field
->flags
& HID_MAIN_ITEM_CONSTANT
))
1105 field
->flags
&= ~HID_MAIN_ITEM_CONSTANT
;
1106 field
->flags
|= HID_MAIN_ITEM_VARIABLE
;
1109 static void mt_fix_const_fields(struct hid_device
*hdev
, unsigned int usage
)
1111 struct hid_report
*report
;
1114 list_for_each_entry(report
,
1115 &hdev
->report_enum
[HID_INPUT_REPORT
].report_list
,
1118 if (!report
->maxfield
)
1121 for (i
= 0; i
< report
->maxfield
; i
++)
1122 if (report
->field
[i
]->maxusage
>= 1)
1123 mt_fix_const_field(report
->field
[i
], usage
);
1127 static int mt_probe(struct hid_device
*hdev
, const struct hid_device_id
*id
)
1130 struct mt_device
*td
;
1131 struct mt_class
*mtclass
= mt_classes
; /* MT_CLS_DEFAULT */
1133 for (i
= 0; mt_classes
[i
].name
; i
++) {
1134 if (id
->driver_data
== mt_classes
[i
].name
) {
1135 mtclass
= &(mt_classes
[i
]);
1140 td
= devm_kzalloc(&hdev
->dev
, sizeof(struct mt_device
), GFP_KERNEL
);
1142 dev_err(&hdev
->dev
, "cannot allocate multitouch data\n");
1145 td
->mtclass
= *mtclass
;
1147 td
->maxcontact_report_id
= -1;
1148 td
->inputmode_value
= MT_INPUTMODE_TOUCHSCREEN
;
1150 td
->mt_report_id
= -1;
1151 hid_set_drvdata(hdev
, td
);
1153 td
->fields
= devm_kzalloc(&hdev
->dev
, sizeof(struct mt_fields
),
1156 dev_err(&hdev
->dev
, "cannot allocate multitouch fields data\n");
1160 if (id
->vendor
== HID_ANY_ID
&& id
->product
== HID_ANY_ID
)
1161 td
->serial_maybe
= true;
1164 * Store the initial quirk state
1166 td
->initial_quirks
= hdev
->quirks
;
1168 /* This allows the driver to correctly support devices
1169 * that emit events over several HID messages.
1171 hdev
->quirks
|= HID_QUIRK_NO_INPUT_SYNC
;
1174 * This allows the driver to handle different input sensors
1175 * that emits events through different reports on the same HID
1178 hdev
->quirks
|= HID_QUIRK_MULTI_INPUT
;
1179 hdev
->quirks
|= HID_QUIRK_NO_EMPTY_INPUT
;
1182 * Some multitouch screens do not like to be polled for input
1183 * reports. Fortunately, the Win8 spec says that all touches
1184 * should be sent during each report, making the initialization
1185 * of input reports unnecessary. For Win7 devices, well, let's hope
1186 * they will still be happy (this is only be a problem if a touch
1187 * was already there while probing the device).
1189 * In addition some touchpads do not behave well if we read
1190 * all feature reports from them. Instead we prevent
1191 * initial report fetching and then selectively fetch each
1192 * report we are interested in.
1194 hdev
->quirks
|= HID_QUIRK_NO_INIT_REPORTS
;
1196 ret
= hid_parse(hdev
);
1200 if (mtclass
->quirks
& MT_QUIRK_FIX_CONST_CONTACT_ID
)
1201 mt_fix_const_fields(hdev
, HID_DG_CONTACTID
);
1203 ret
= hid_hw_start(hdev
, HID_CONNECT_DEFAULT
);
1207 ret
= sysfs_create_group(&hdev
->dev
.kobj
, &mt_attribute_group
);
1209 dev_warn(&hdev
->dev
, "Cannot allocate sysfs group for %s\n",
1212 mt_set_maxcontacts(hdev
);
1213 mt_set_input_mode(hdev
);
1215 /* release .fields memory as it is not used anymore */
1216 devm_kfree(&hdev
->dev
, td
->fields
);
1223 static void mt_release_contacts(struct hid_device
*hid
)
1225 struct hid_input
*hidinput
;
1227 list_for_each_entry(hidinput
, &hid
->inputs
, list
) {
1228 struct input_dev
*input_dev
= hidinput
->input
;
1229 struct input_mt
*mt
= input_dev
->mt
;
1233 for (i
= 0; i
< mt
->num_slots
; i
++) {
1234 input_mt_slot(input_dev
, i
);
1235 input_mt_report_slot_state(input_dev
,
1239 input_mt_sync_frame(input_dev
);
1240 input_sync(input_dev
);
1245 static int mt_reset_resume(struct hid_device
*hdev
)
1247 mt_release_contacts(hdev
);
1248 mt_set_maxcontacts(hdev
);
1249 mt_set_input_mode(hdev
);
1253 static int mt_resume(struct hid_device
*hdev
)
1255 /* Some Elan legacy devices require SET_IDLE to be set on resume.
1256 * It should be safe to send it to other devices too.
1257 * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */
1259 hid_hw_idle(hdev
, 0, 0, HID_REQ_SET_IDLE
);
1265 static void mt_remove(struct hid_device
*hdev
)
1267 struct mt_device
*td
= hid_get_drvdata(hdev
);
1269 sysfs_remove_group(&hdev
->dev
.kobj
, &mt_attribute_group
);
1271 hdev
->quirks
= td
->initial_quirks
;
1275 * This list contains only:
1276 * - VID/PID of products not working with the default multitouch handling
1277 * - 2 generic rules.
1278 * So there is no point in adding here any device with MT_CLS_DEFAULT.
1280 static const struct hid_device_id mt_devices
[] = {
1283 { .driver_data
= MT_CLS_3M
,
1284 MT_USB_DEVICE(USB_VENDOR_ID_3M
,
1285 USB_DEVICE_ID_3M1968
) },
1286 { .driver_data
= MT_CLS_3M
,
1287 MT_USB_DEVICE(USB_VENDOR_ID_3M
,
1288 USB_DEVICE_ID_3M2256
) },
1289 { .driver_data
= MT_CLS_3M
,
1290 MT_USB_DEVICE(USB_VENDOR_ID_3M
,
1291 USB_DEVICE_ID_3M3266
) },
1294 { .driver_data
= MT_CLS_EXPORT_ALL_INPUTS
,
1295 MT_USB_DEVICE(USB_VENDOR_ID_ANTON
,
1296 USB_DEVICE_ID_ANTON_TOUCH_PAD
) },
1299 { .driver_data
= MT_CLS_SERIAL
,
1300 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL
,
1301 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER
) },
1303 /* Baanto multitouch devices */
1304 { .driver_data
= MT_CLS_NSMU
,
1305 MT_USB_DEVICE(USB_VENDOR_ID_BAANTO
,
1306 USB_DEVICE_ID_BAANTO_MT_190W2
) },
1309 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
1310 MT_USB_DEVICE(USB_VENDOR_ID_CANDO
,
1311 USB_DEVICE_ID_CANDO_MULTI_TOUCH
) },
1312 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
1313 MT_USB_DEVICE(USB_VENDOR_ID_CANDO
,
1314 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6
) },
1316 /* Chunghwa Telecom touch panels */
1317 { .driver_data
= MT_CLS_NSMU
,
1318 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT
,
1319 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH
) },
1321 /* CJTouch panels */
1322 { .driver_data
= MT_CLS_NSMU
,
1323 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH
,
1324 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020
) },
1325 { .driver_data
= MT_CLS_NSMU
,
1326 MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH
,
1327 USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040
) },
1329 /* CVTouch panels */
1330 { .driver_data
= MT_CLS_NSMU
,
1331 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH
,
1332 USB_DEVICE_ID_CVTOUCH_SCREEN
) },
1334 /* eGalax devices (resistive) */
1335 { .driver_data
= MT_CLS_EGALAX
,
1336 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1337 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D
) },
1338 { .driver_data
= MT_CLS_EGALAX
,
1339 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1340 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E
) },
1342 /* eGalax devices (capacitive) */
1343 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1344 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1345 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207
) },
1346 { .driver_data
= MT_CLS_EGALAX
,
1347 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1348 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C
) },
1349 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1350 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1351 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224
) },
1352 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1353 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1354 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A
) },
1355 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1356 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1357 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E
) },
1358 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1359 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1360 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262
) },
1361 { .driver_data
= MT_CLS_EGALAX
,
1362 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1363 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B
) },
1364 { .driver_data
= MT_CLS_EGALAX
,
1365 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1366 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1
) },
1367 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1368 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1369 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA
) },
1370 { .driver_data
= MT_CLS_EGALAX
,
1371 HID_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1372 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4
) },
1373 { .driver_data
= MT_CLS_EGALAX
,
1374 HID_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1375 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0
) },
1376 { .driver_data
= MT_CLS_EGALAX
,
1377 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1378 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA
) },
1379 { .driver_data
= MT_CLS_EGALAX
,
1380 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1381 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302
) },
1382 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1383 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1384 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349
) },
1385 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1386 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1387 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7
) },
1388 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
1389 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
1390 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001
) },
1392 /* Elitegroup panel */
1393 { .driver_data
= MT_CLS_SERIAL
,
1394 MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP
,
1395 USB_DEVICE_ID_ELITEGROUP_05D8
) },
1397 /* Flatfrog Panels */
1398 { .driver_data
= MT_CLS_FLATFROG
,
1399 MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG
,
1400 USB_DEVICE_ID_MULTITOUCH_3200
) },
1402 /* FocalTech Panels */
1403 { .driver_data
= MT_CLS_SERIAL
,
1404 MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL
,
1405 USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH
) },
1407 /* GeneralTouch panel */
1408 { .driver_data
= MT_CLS_GENERALTOUCH_TWOFINGERS
,
1409 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1410 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS
) },
1411 { .driver_data
= MT_CLS_GENERALTOUCH_PWT_TENFINGERS
,
1412 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1413 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS
) },
1414 { .driver_data
= MT_CLS_GENERALTOUCH_TWOFINGERS
,
1415 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1416 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101
) },
1417 { .driver_data
= MT_CLS_GENERALTOUCH_PWT_TENFINGERS
,
1418 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1419 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102
) },
1420 { .driver_data
= MT_CLS_GENERALTOUCH_PWT_TENFINGERS
,
1421 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1422 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106
) },
1423 { .driver_data
= MT_CLS_GENERALTOUCH_PWT_TENFINGERS
,
1424 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1425 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A
) },
1426 { .driver_data
= MT_CLS_GENERALTOUCH_PWT_TENFINGERS
,
1427 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
1428 USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100
) },
1430 /* Gametel game controller */
1431 { .driver_data
= MT_CLS_NSMU
,
1432 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL
,
1433 USB_DEVICE_ID_GAMETEL_MT_MODE
) },
1435 /* GoodTouch panels */
1436 { .driver_data
= MT_CLS_NSMU
,
1437 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH
,
1438 USB_DEVICE_ID_GOODTOUCH_000f
) },
1441 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTID
,
1442 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT
,
1443 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH
) },
1445 /* Ilitek dual touch panel */
1446 { .driver_data
= MT_CLS_NSMU
,
1447 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK
,
1448 USB_DEVICE_ID_ILITEK_MULTITOUCH
) },
1450 /* LG Melfas panel */
1451 { .driver_data
= MT_CLS_LG
,
1452 HID_USB_DEVICE(USB_VENDOR_ID_LG
,
1453 USB_DEVICE_ID_LG_MELFAS_MT
) },
1456 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
1457 MT_USB_DEVICE(USB_VENDOR_ID_ASUS
,
1458 USB_DEVICE_ID_ASUS_T91MT
)},
1459 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
1460 MT_USB_DEVICE(USB_VENDOR_ID_ASUS
,
1461 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO
) },
1462 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
1463 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX
,
1464 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART
) },
1466 /* Panasonic panels */
1467 { .driver_data
= MT_CLS_PANASONIC
,
1468 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC
,
1469 USB_DEVICE_ID_PANABOARD_UBT780
) },
1470 { .driver_data
= MT_CLS_PANASONIC
,
1471 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC
,
1472 USB_DEVICE_ID_PANABOARD_UBT880
) },
1475 { .driver_data
= MT_CLS_NSMU
,
1476 MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK
,
1477 USB_DEVICE_ID_NOVATEK_PCT
) },
1480 { .driver_data
= MT_CLS_NSMU
,
1481 HID_DEVICE(BUS_I2C
, HID_GROUP_MULTITOUCH_WIN_8
,
1482 USB_VENDOR_ID_NTRIG
, 0x1b05) },
1484 /* PixArt optical touch screen */
1485 { .driver_data
= MT_CLS_INRANGE_CONTACTNUMBER
,
1486 MT_USB_DEVICE(USB_VENDOR_ID_PIXART
,
1487 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN
) },
1488 { .driver_data
= MT_CLS_INRANGE_CONTACTNUMBER
,
1489 MT_USB_DEVICE(USB_VENDOR_ID_PIXART
,
1490 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1
) },
1491 { .driver_data
= MT_CLS_INRANGE_CONTACTNUMBER
,
1492 MT_USB_DEVICE(USB_VENDOR_ID_PIXART
,
1493 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2
) },
1495 /* PixCir-based panels */
1496 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTID
,
1497 MT_USB_DEVICE(USB_VENDOR_ID_CANDO
,
1498 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH
) },
1500 /* Quanta-based panels */
1501 { .driver_data
= MT_CLS_CONFIDENCE_CONTACT_ID
,
1502 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA
,
1503 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001
) },
1505 /* Stantum panels */
1506 { .driver_data
= MT_CLS_CONFIDENCE
,
1507 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM
,
1508 USB_DEVICE_ID_MTP_STM
)},
1510 /* TopSeed panels */
1511 { .driver_data
= MT_CLS_TOPSEED
,
1512 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2
,
1513 USB_DEVICE_ID_TOPSEED2_PERIPAD_701
) },
1515 /* Touch International panels */
1516 { .driver_data
= MT_CLS_NSMU
,
1517 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL
,
1518 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH
) },
1521 { .driver_data
= MT_CLS_NSMU
,
1522 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC
,
1523 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709
) },
1524 { .driver_data
= MT_CLS_NSMU
,
1525 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC
,
1526 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19
) },
1529 { .driver_data
= MT_CLS_VTL
,
1530 MT_USB_DEVICE(USB_VENDOR_ID_VTL
,
1531 USB_DEVICE_ID_VTL_MULTITOUCH_FF3F
) },
1533 /* Wistron panels */
1534 { .driver_data
= MT_CLS_NSMU
,
1535 MT_USB_DEVICE(USB_VENDOR_ID_WISTRON
,
1536 USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH
) },
1539 { .driver_data
= MT_CLS_NSMU
,
1540 MT_USB_DEVICE(USB_VENDOR_ID_XAT
,
1541 USB_DEVICE_ID_XAT_CSR
) },
1544 { .driver_data
= MT_CLS_NSMU
,
1545 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1546 USB_DEVICE_ID_XIROKU_SPX
) },
1547 { .driver_data
= MT_CLS_NSMU
,
1548 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1549 USB_DEVICE_ID_XIROKU_MPX
) },
1550 { .driver_data
= MT_CLS_NSMU
,
1551 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1552 USB_DEVICE_ID_XIROKU_CSR
) },
1553 { .driver_data
= MT_CLS_NSMU
,
1554 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1555 USB_DEVICE_ID_XIROKU_SPX1
) },
1556 { .driver_data
= MT_CLS_NSMU
,
1557 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1558 USB_DEVICE_ID_XIROKU_MPX1
) },
1559 { .driver_data
= MT_CLS_NSMU
,
1560 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1561 USB_DEVICE_ID_XIROKU_CSR1
) },
1562 { .driver_data
= MT_CLS_NSMU
,
1563 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1564 USB_DEVICE_ID_XIROKU_SPX2
) },
1565 { .driver_data
= MT_CLS_NSMU
,
1566 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1567 USB_DEVICE_ID_XIROKU_MPX2
) },
1568 { .driver_data
= MT_CLS_NSMU
,
1569 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1570 USB_DEVICE_ID_XIROKU_CSR2
) },
1572 /* Generic MT device */
1573 { HID_DEVICE(HID_BUS_ANY
, HID_GROUP_MULTITOUCH
, HID_ANY_ID
, HID_ANY_ID
) },
1575 /* Generic Win 8 certified MT device */
1576 { .driver_data
= MT_CLS_WIN_8
,
1577 HID_DEVICE(HID_BUS_ANY
, HID_GROUP_MULTITOUCH_WIN_8
,
1578 HID_ANY_ID
, HID_ANY_ID
) },
1581 MODULE_DEVICE_TABLE(hid
, mt_devices
);
1583 static const struct hid_usage_id mt_grabbed_usages
[] = {
1584 { HID_ANY_ID
, HID_ANY_ID
, HID_ANY_ID
},
1585 { HID_ANY_ID
- 1, HID_ANY_ID
- 1, HID_ANY_ID
- 1}
1588 static struct hid_driver mt_driver
= {
1589 .name
= "hid-multitouch",
1590 .id_table
= mt_devices
,
1592 .remove
= mt_remove
,
1593 .input_mapping
= mt_input_mapping
,
1594 .input_mapped
= mt_input_mapped
,
1595 .input_configured
= mt_input_configured
,
1596 .feature_mapping
= mt_feature_mapping
,
1597 .usage_table
= mt_grabbed_usages
,
1599 .report
= mt_report
,
1601 .reset_resume
= mt_reset_resume
,
1602 .resume
= mt_resume
,
1605 module_hid_driver(mt_driver
);