2 * HID driver for multitouch panels
4 * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr>
5 * Copyright (c) 2010-2012 Benjamin Tissoires <benjamin.tissoires@gmail.com>
6 * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France
8 * This code is partly based on hid-egalax.c:
10 * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr>
11 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
12 * Copyright (c) 2010 Canonical, Ltd.
14 * This code is partly based on hid-3m-pct.c:
16 * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
17 * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se>
18 * Copyright (c) 2010 Canonical, Ltd.
23 * This program is free software; you can redistribute it and/or modify it
24 * under the terms of the GNU General Public License as published by the Free
25 * Software Foundation; either version 2 of the License, or (at your option)
29 #include <linux/device.h>
30 #include <linux/hid.h>
31 #include <linux/module.h>
32 #include <linux/slab.h>
33 #include <linux/usb.h>
34 #include <linux/input/mt.h>
35 #include "usbhid/usbhid.h"
38 MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
39 MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>");
40 MODULE_DESCRIPTION("HID multitouch panels");
41 MODULE_LICENSE("GPL");
45 /* quirks to control the device */
46 #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0)
47 #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1)
48 #define MT_QUIRK_CYPRESS (1 << 2)
49 #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3)
50 #define MT_QUIRK_ALWAYS_VALID (1 << 4)
51 #define MT_QUIRK_VALID_IS_INRANGE (1 << 5)
52 #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 6)
53 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE (1 << 8)
57 __s32 contactid
; /* the device ContactID assigned to this slot */
58 bool touch_state
; /* is the touch valid? */
59 bool seen_in_this_frame
;/* has this slot been updated */
63 __s32 name
; /* MT_CLS */
65 __s32 sn_move
; /* Signal/noise ratio for move events */
66 __s32 sn_width
; /* Signal/noise ratio for width events */
67 __s32 sn_height
; /* Signal/noise ratio for height events */
68 __s32 sn_pressure
; /* Signal/noise ratio for pressure events */
70 bool is_indirect
; /* true for touchpads */
74 struct mt_slot curdata
; /* placeholder of incoming data */
75 struct mt_class mtclass
; /* our mt device class */
76 unsigned last_field_index
; /* last field index of the report */
77 unsigned last_slot_field
; /* the last field of a slot */
78 int last_mt_collection
; /* last known mt-related collection */
79 __s8 inputmode
; /* InputMode HID feature, -1 if non-existent */
80 __s8 maxcontact_report_id
; /* Maximum Contact Number HID feature,
82 __u8 num_received
; /* how many contacts we received */
83 __u8 num_expected
; /* expected last contact index */
85 bool curvalid
; /* is the current contact valid? */
86 struct mt_slot
*slots
;
89 /* classes of device behavior */
90 #define MT_CLS_DEFAULT 0x0001
92 #define MT_CLS_SERIAL 0x0002
93 #define MT_CLS_CONFIDENCE 0x0003
94 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
95 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
96 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
97 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
98 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0008
99 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
101 /* vendor specific classes */
102 #define MT_CLS_3M 0x0101
103 #define MT_CLS_CYPRESS 0x0102
104 #define MT_CLS_EGALAX 0x0103
105 #define MT_CLS_EGALAX_SERIAL 0x0104
106 #define MT_CLS_TOPSEED 0x0105
107 #define MT_CLS_PANASONIC 0x0106
109 #define MT_DEFAULT_MAXCONTACT 10
112 * these device-dependent functions determine what slot corresponds
113 * to a valid contact that was just read.
116 static int cypress_compute_slot(struct mt_device
*td
)
118 if (td
->curdata
.contactid
!= 0 || td
->num_received
== 0)
119 return td
->curdata
.contactid
;
124 static int find_slot_from_contactid(struct mt_device
*td
)
127 for (i
= 0; i
< td
->maxcontacts
; ++i
) {
128 if (td
->slots
[i
].contactid
== td
->curdata
.contactid
&&
129 td
->slots
[i
].touch_state
)
132 for (i
= 0; i
< td
->maxcontacts
; ++i
) {
133 if (!td
->slots
[i
].seen_in_this_frame
&&
134 !td
->slots
[i
].touch_state
)
137 /* should not occurs. If this happens that means
138 * that the device sent more touches that it says
139 * in the report descriptor. It is ignored then. */
143 static struct mt_class mt_classes
[] = {
144 { .name
= MT_CLS_DEFAULT
,
145 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
},
146 { .name
= MT_CLS_SERIAL
,
147 .quirks
= MT_QUIRK_ALWAYS_VALID
},
148 { .name
= MT_CLS_CONFIDENCE
,
149 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
},
150 { .name
= MT_CLS_CONFIDENCE_CONTACT_ID
,
151 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
|
152 MT_QUIRK_SLOT_IS_CONTACTID
},
153 { .name
= MT_CLS_CONFIDENCE_MINUS_ONE
,
154 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
|
155 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE
},
156 { .name
= MT_CLS_DUAL_INRANGE_CONTACTID
,
157 .quirks
= MT_QUIRK_VALID_IS_INRANGE
|
158 MT_QUIRK_SLOT_IS_CONTACTID
,
160 { .name
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
161 .quirks
= MT_QUIRK_VALID_IS_INRANGE
|
162 MT_QUIRK_SLOT_IS_CONTACTNUMBER
,
164 { .name
= MT_CLS_DUAL_NSMU_CONTACTID
,
165 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
|
166 MT_QUIRK_SLOT_IS_CONTACTID
,
168 { .name
= MT_CLS_INRANGE_CONTACTNUMBER
,
169 .quirks
= MT_QUIRK_VALID_IS_INRANGE
|
170 MT_QUIRK_SLOT_IS_CONTACTNUMBER
},
173 * vendor specific classes
176 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
|
177 MT_QUIRK_SLOT_IS_CONTACTID
,
181 { .name
= MT_CLS_CYPRESS
,
182 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
|
185 { .name
= MT_CLS_EGALAX
,
186 .quirks
= MT_QUIRK_SLOT_IS_CONTACTID
|
187 MT_QUIRK_VALID_IS_INRANGE
,
191 { .name
= MT_CLS_EGALAX_SERIAL
,
192 .quirks
= MT_QUIRK_SLOT_IS_CONTACTID
|
193 MT_QUIRK_ALWAYS_VALID
,
197 { .name
= MT_CLS_TOPSEED
,
198 .quirks
= MT_QUIRK_ALWAYS_VALID
,
202 { .name
= MT_CLS_PANASONIC
,
203 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
,
209 static ssize_t
mt_show_quirks(struct device
*dev
,
210 struct device_attribute
*attr
,
213 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
214 struct mt_device
*td
= hid_get_drvdata(hdev
);
216 return sprintf(buf
, "%u\n", td
->mtclass
.quirks
);
219 static ssize_t
mt_set_quirks(struct device
*dev
,
220 struct device_attribute
*attr
,
221 const char *buf
, size_t count
)
223 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
224 struct mt_device
*td
= hid_get_drvdata(hdev
);
228 if (kstrtoul(buf
, 0, &val
))
231 td
->mtclass
.quirks
= val
;
236 static DEVICE_ATTR(quirks
, S_IWUSR
| S_IRUGO
, mt_show_quirks
, mt_set_quirks
);
238 static struct attribute
*sysfs_attrs
[] = {
239 &dev_attr_quirks
.attr
,
243 static struct attribute_group mt_attribute_group
= {
247 static void mt_feature_mapping(struct hid_device
*hdev
,
248 struct hid_field
*field
, struct hid_usage
*usage
)
250 struct mt_device
*td
= hid_get_drvdata(hdev
);
252 switch (usage
->hid
) {
253 case HID_DG_INPUTMODE
:
254 td
->inputmode
= field
->report
->id
;
256 case HID_DG_CONTACTMAX
:
257 td
->maxcontact_report_id
= field
->report
->id
;
258 td
->maxcontacts
= field
->value
[0];
259 if (td
->mtclass
.maxcontacts
)
260 /* check if the maxcontacts is given by the class */
261 td
->maxcontacts
= td
->mtclass
.maxcontacts
;
267 static void set_abs(struct input_dev
*input
, unsigned int code
,
268 struct hid_field
*field
, int snratio
)
270 int fmin
= field
->logical_minimum
;
271 int fmax
= field
->logical_maximum
;
272 int fuzz
= snratio
? (fmax
- fmin
) / snratio
: 0;
273 input_set_abs_params(input
, code
, fmin
, fmax
, fuzz
, 0);
276 static int mt_input_mapping(struct hid_device
*hdev
, struct hid_input
*hi
,
277 struct hid_field
*field
, struct hid_usage
*usage
,
278 unsigned long **bit
, int *max
)
280 struct mt_device
*td
= hid_get_drvdata(hdev
);
281 struct mt_class
*cls
= &td
->mtclass
;
284 /* Only map fields from TouchScreen or TouchPad collections.
285 * We need to ignore fields that belong to other collections
286 * such as Mouse that might have the same GenericDesktop usages. */
287 if (field
->application
== HID_DG_TOUCHSCREEN
)
288 set_bit(INPUT_PROP_DIRECT
, hi
->input
->propbit
);
289 else if (field
->application
!= HID_DG_TOUCHPAD
)
292 /* In case of an indirect device (touchpad), we need to add
293 * specific BTN_TOOL_* to be handled by the synaptics xorg
295 * We also consider that touchscreens providing buttons are touchpads.
297 if (field
->application
== HID_DG_TOUCHPAD
||
298 (usage
->hid
& HID_USAGE_PAGE
) == HID_UP_BUTTON
||
300 set_bit(INPUT_PROP_POINTER
, hi
->input
->propbit
);
301 set_bit(BTN_TOOL_FINGER
, hi
->input
->keybit
);
302 set_bit(BTN_TOOL_DOUBLETAP
, hi
->input
->keybit
);
303 set_bit(BTN_TOOL_TRIPLETAP
, hi
->input
->keybit
);
304 set_bit(BTN_TOOL_QUADTAP
, hi
->input
->keybit
);
307 /* eGalax devices provide a Digitizer.Stylus input which overrides
308 * the correct Digitizers.Finger X/Y ranges.
309 * Let's just ignore this input. */
310 if (field
->physical
== HID_DG_STYLUS
)
313 switch (usage
->hid
& HID_USAGE_PAGE
) {
316 switch (usage
->hid
) {
318 hid_map_usage(hi
, usage
, bit
, max
,
319 EV_ABS
, ABS_MT_POSITION_X
);
320 set_abs(hi
->input
, ABS_MT_POSITION_X
, field
,
322 /* touchscreen emulation */
323 set_abs(hi
->input
, ABS_X
, field
, cls
->sn_move
);
324 if (td
->last_mt_collection
== usage
->collection_index
) {
325 td
->last_slot_field
= usage
->hid
;
326 td
->last_field_index
= field
->index
;
330 hid_map_usage(hi
, usage
, bit
, max
,
331 EV_ABS
, ABS_MT_POSITION_Y
);
332 set_abs(hi
->input
, ABS_MT_POSITION_Y
, field
,
334 /* touchscreen emulation */
335 set_abs(hi
->input
, ABS_Y
, field
, cls
->sn_move
);
336 if (td
->last_mt_collection
== usage
->collection_index
) {
337 td
->last_slot_field
= usage
->hid
;
338 td
->last_field_index
= field
->index
;
344 case HID_UP_DIGITIZER
:
345 switch (usage
->hid
) {
347 if (td
->last_mt_collection
== usage
->collection_index
) {
348 td
->last_slot_field
= usage
->hid
;
349 td
->last_field_index
= field
->index
;
352 case HID_DG_CONFIDENCE
:
353 if (td
->last_mt_collection
== usage
->collection_index
) {
354 td
->last_slot_field
= usage
->hid
;
355 td
->last_field_index
= field
->index
;
358 case HID_DG_TIPSWITCH
:
359 hid_map_usage(hi
, usage
, bit
, max
, EV_KEY
, BTN_TOUCH
);
360 input_set_capability(hi
->input
, EV_KEY
, BTN_TOUCH
);
361 if (td
->last_mt_collection
== usage
->collection_index
) {
362 td
->last_slot_field
= usage
->hid
;
363 td
->last_field_index
= field
->index
;
366 case HID_DG_CONTACTID
:
367 if (!td
->maxcontacts
)
368 td
->maxcontacts
= MT_DEFAULT_MAXCONTACT
;
369 input_mt_init_slots(hi
->input
, td
->maxcontacts
);
370 td
->last_slot_field
= usage
->hid
;
371 td
->last_field_index
= field
->index
;
372 td
->last_mt_collection
= usage
->collection_index
;
375 hid_map_usage(hi
, usage
, bit
, max
,
376 EV_ABS
, ABS_MT_TOUCH_MAJOR
);
377 set_abs(hi
->input
, ABS_MT_TOUCH_MAJOR
, field
,
379 if (td
->last_mt_collection
== usage
->collection_index
) {
380 td
->last_slot_field
= usage
->hid
;
381 td
->last_field_index
= field
->index
;
385 hid_map_usage(hi
, usage
, bit
, max
,
386 EV_ABS
, ABS_MT_TOUCH_MINOR
);
387 set_abs(hi
->input
, ABS_MT_TOUCH_MINOR
, field
,
389 input_set_abs_params(hi
->input
,
390 ABS_MT_ORIENTATION
, 0, 1, 0, 0);
391 if (td
->last_mt_collection
== usage
->collection_index
) {
392 td
->last_slot_field
= usage
->hid
;
393 td
->last_field_index
= field
->index
;
396 case HID_DG_TIPPRESSURE
:
397 hid_map_usage(hi
, usage
, bit
, max
,
398 EV_ABS
, ABS_MT_PRESSURE
);
399 set_abs(hi
->input
, ABS_MT_PRESSURE
, field
,
401 /* touchscreen emulation */
402 set_abs(hi
->input
, ABS_PRESSURE
, field
,
404 if (td
->last_mt_collection
== usage
->collection_index
) {
405 td
->last_slot_field
= usage
->hid
;
406 td
->last_field_index
= field
->index
;
409 case HID_DG_CONTACTCOUNT
:
410 if (td
->last_mt_collection
== usage
->collection_index
)
411 td
->last_field_index
= field
->index
;
413 case HID_DG_CONTACTMAX
:
414 /* we don't set td->last_slot_field as contactcount and
415 * contact max are global to the report */
416 if (td
->last_mt_collection
== usage
->collection_index
)
417 td
->last_field_index
= field
->index
;
421 /* Legacy devices use TIPSWITCH and not TOUCH.
422 * Let's just ignore this field. */
424 /* let hid-input decide for the others */
428 code
= BTN_MOUSE
+ ((usage
->hid
- 1) & HID_USAGE
);
429 hid_map_usage(hi
, usage
, bit
, max
, EV_KEY
, code
);
430 input_set_capability(hi
->input
, EV_KEY
, code
);
434 /* we do not want to map these: no input-oriented meaning */
441 static int mt_input_mapped(struct hid_device
*hdev
, struct hid_input
*hi
,
442 struct hid_field
*field
, struct hid_usage
*usage
,
443 unsigned long **bit
, int *max
)
445 if (usage
->type
== EV_KEY
|| usage
->type
== EV_ABS
)
446 set_bit(usage
->type
, hi
->input
->evbit
);
451 static int mt_compute_slot(struct mt_device
*td
)
453 __s32 quirks
= td
->mtclass
.quirks
;
455 if (quirks
& MT_QUIRK_SLOT_IS_CONTACTID
)
456 return td
->curdata
.contactid
;
458 if (quirks
& MT_QUIRK_CYPRESS
)
459 return cypress_compute_slot(td
);
461 if (quirks
& MT_QUIRK_SLOT_IS_CONTACTNUMBER
)
462 return td
->num_received
;
464 if (quirks
& MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE
)
465 return td
->curdata
.contactid
- 1;
467 return find_slot_from_contactid(td
);
471 * this function is called when a whole contact has been processed,
472 * so that it can assign it to a slot and store the data there
474 static void mt_complete_slot(struct mt_device
*td
)
476 td
->curdata
.seen_in_this_frame
= true;
478 int slotnum
= mt_compute_slot(td
);
480 if (slotnum
>= 0 && slotnum
< td
->maxcontacts
)
481 td
->slots
[slotnum
] = td
->curdata
;
488 * this function is called when a whole packet has been received and processed,
489 * so that it can decide what to send to the input layer.
491 static void mt_emit_event(struct mt_device
*td
, struct input_dev
*input
)
495 for (i
= 0; i
< td
->maxcontacts
; ++i
) {
496 struct mt_slot
*s
= &(td
->slots
[i
]);
497 if ((td
->mtclass
.quirks
& MT_QUIRK_NOT_SEEN_MEANS_UP
) &&
498 !s
->seen_in_this_frame
) {
499 s
->touch_state
= false;
502 input_mt_slot(input
, i
);
503 input_mt_report_slot_state(input
, MT_TOOL_FINGER
,
505 if (s
->touch_state
) {
506 /* this finger is on the screen */
507 int wide
= (s
->w
> s
->h
);
508 /* divided by two to match visual scale of touch */
509 int major
= max(s
->w
, s
->h
) >> 1;
510 int minor
= min(s
->w
, s
->h
) >> 1;
512 input_event(input
, EV_ABS
, ABS_MT_POSITION_X
, s
->x
);
513 input_event(input
, EV_ABS
, ABS_MT_POSITION_Y
, s
->y
);
514 input_event(input
, EV_ABS
, ABS_MT_ORIENTATION
, wide
);
515 input_event(input
, EV_ABS
, ABS_MT_PRESSURE
, s
->p
);
516 input_event(input
, EV_ABS
, ABS_MT_TOUCH_MAJOR
, major
);
517 input_event(input
, EV_ABS
, ABS_MT_TOUCH_MINOR
, minor
);
519 s
->seen_in_this_frame
= false;
523 input_mt_report_pointer_emulation(input
, true);
525 td
->num_received
= 0;
530 static int mt_event(struct hid_device
*hid
, struct hid_field
*field
,
531 struct hid_usage
*usage
, __s32 value
)
533 struct mt_device
*td
= hid_get_drvdata(hid
);
534 __s32 quirks
= td
->mtclass
.quirks
;
536 if (hid
->claimed
& HID_CLAIMED_INPUT
&& td
->slots
) {
537 switch (usage
->hid
) {
539 if (quirks
& MT_QUIRK_ALWAYS_VALID
)
541 else if (quirks
& MT_QUIRK_VALID_IS_INRANGE
)
542 td
->curvalid
= value
;
544 case HID_DG_TIPSWITCH
:
545 if (quirks
& MT_QUIRK_NOT_SEEN_MEANS_UP
)
546 td
->curvalid
= value
;
547 td
->curdata
.touch_state
= value
;
549 case HID_DG_CONFIDENCE
:
550 if (quirks
& MT_QUIRK_VALID_IS_CONFIDENCE
)
551 td
->curvalid
= value
;
553 case HID_DG_CONTACTID
:
554 td
->curdata
.contactid
= value
;
556 case HID_DG_TIPPRESSURE
:
557 td
->curdata
.p
= value
;
560 td
->curdata
.x
= value
;
563 td
->curdata
.y
= value
;
566 td
->curdata
.w
= value
;
569 td
->curdata
.h
= value
;
571 case HID_DG_CONTACTCOUNT
:
573 * Includes multi-packet support where subsequent
574 * packets are sent with zero contactcount.
577 td
->num_expected
= value
;
584 /* fallback to the generic hidinput handling */
588 if (usage
->hid
== td
->last_slot_field
)
589 mt_complete_slot(td
);
591 if (field
->index
== td
->last_field_index
592 && td
->num_received
>= td
->num_expected
)
593 mt_emit_event(td
, field
->hidinput
->input
);
597 /* we have handled the hidinput part, now remains hiddev */
598 if (hid
->claimed
& HID_CLAIMED_HIDDEV
&& hid
->hiddev_hid_event
)
599 hid
->hiddev_hid_event(hid
, field
, usage
, value
);
604 static void mt_set_input_mode(struct hid_device
*hdev
)
606 struct mt_device
*td
= hid_get_drvdata(hdev
);
607 struct hid_report
*r
;
608 struct hid_report_enum
*re
;
610 if (td
->inputmode
< 0)
613 re
= &(hdev
->report_enum
[HID_FEATURE_REPORT
]);
614 r
= re
->report_id_hash
[td
->inputmode
];
616 r
->field
[0]->value
[0] = 0x02;
617 usbhid_submit_report(hdev
, r
, USB_DIR_OUT
);
621 static void mt_set_maxcontacts(struct hid_device
*hdev
)
623 struct mt_device
*td
= hid_get_drvdata(hdev
);
624 struct hid_report
*r
;
625 struct hid_report_enum
*re
;
628 if (td
->maxcontact_report_id
< 0)
631 if (!td
->mtclass
.maxcontacts
)
634 re
= &hdev
->report_enum
[HID_FEATURE_REPORT
];
635 r
= re
->report_id_hash
[td
->maxcontact_report_id
];
637 max
= td
->mtclass
.maxcontacts
;
638 fieldmax
= r
->field
[0]->logical_maximum
;
639 max
= min(fieldmax
, max
);
640 if (r
->field
[0]->value
[0] != max
) {
641 r
->field
[0]->value
[0] = max
;
642 usbhid_submit_report(hdev
, r
, USB_DIR_OUT
);
647 static int mt_probe(struct hid_device
*hdev
, const struct hid_device_id
*id
)
650 struct mt_device
*td
;
651 struct mt_class
*mtclass
= mt_classes
; /* MT_CLS_DEFAULT */
653 for (i
= 0; mt_classes
[i
].name
; i
++) {
654 if (id
->driver_data
== mt_classes
[i
].name
) {
655 mtclass
= &(mt_classes
[i
]);
660 /* This allows the driver to correctly support devices
661 * that emit events over several HID messages.
663 hdev
->quirks
|= HID_QUIRK_NO_INPUT_SYNC
;
665 td
= kzalloc(sizeof(struct mt_device
), GFP_KERNEL
);
667 dev_err(&hdev
->dev
, "cannot allocate multitouch data\n");
670 td
->mtclass
= *mtclass
;
672 td
->maxcontact_report_id
= -1;
673 td
->last_mt_collection
= -1;
674 hid_set_drvdata(hdev
, td
);
676 ret
= hid_parse(hdev
);
680 ret
= hid_hw_start(hdev
, HID_CONNECT_DEFAULT
);
684 td
->slots
= kzalloc(td
->maxcontacts
* sizeof(struct mt_slot
),
687 dev_err(&hdev
->dev
, "cannot allocate multitouch slots\n");
693 ret
= sysfs_create_group(&hdev
->dev
.kobj
, &mt_attribute_group
);
695 mt_set_maxcontacts(hdev
);
696 mt_set_input_mode(hdev
);
706 static int mt_reset_resume(struct hid_device
*hdev
)
708 mt_set_maxcontacts(hdev
);
709 mt_set_input_mode(hdev
);
714 static void mt_remove(struct hid_device
*hdev
)
716 struct mt_device
*td
= hid_get_drvdata(hdev
);
717 sysfs_remove_group(&hdev
->dev
.kobj
, &mt_attribute_group
);
721 hid_set_drvdata(hdev
, NULL
);
724 static const struct hid_device_id mt_devices
[] = {
727 { .driver_data
= MT_CLS_3M
,
728 HID_USB_DEVICE(USB_VENDOR_ID_3M
,
729 USB_DEVICE_ID_3M1968
) },
730 { .driver_data
= MT_CLS_3M
,
731 HID_USB_DEVICE(USB_VENDOR_ID_3M
,
732 USB_DEVICE_ID_3M2256
) },
733 { .driver_data
= MT_CLS_3M
,
734 HID_USB_DEVICE(USB_VENDOR_ID_3M
,
735 USB_DEVICE_ID_3M3266
) },
737 /* ActionStar panels */
738 { .driver_data
= MT_CLS_DEFAULT
,
739 HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR
,
740 USB_DEVICE_ID_ACTIONSTAR_1011
) },
743 { .driver_data
= MT_CLS_SERIAL
,
744 HID_USB_DEVICE(USB_VENDOR_ID_ATMEL
,
745 USB_DEVICE_ID_ATMEL_MULTITOUCH
) },
748 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
749 HID_USB_DEVICE(USB_VENDOR_ID_CANDO
,
750 USB_DEVICE_ID_CANDO_MULTI_TOUCH
) },
751 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
752 HID_USB_DEVICE(USB_VENDOR_ID_CANDO
,
753 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1
) },
754 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
755 HID_USB_DEVICE(USB_VENDOR_ID_CANDO
,
756 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6
) },
757 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
758 HID_USB_DEVICE(USB_VENDOR_ID_CANDO
,
759 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6
) },
761 /* Chunghwa Telecom touch panels */
762 { .driver_data
= MT_CLS_DEFAULT
,
763 HID_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT
,
764 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH
) },
767 { .driver_data
= MT_CLS_DEFAULT
,
768 HID_USB_DEVICE(USB_VENDOR_ID_CVTOUCH
,
769 USB_DEVICE_ID_CVTOUCH_SCREEN
) },
772 { .driver_data
= MT_CLS_CYPRESS
,
773 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS
,
774 USB_DEVICE_ID_CYPRESS_TRUETOUCH
) },
776 /* eGalax devices (resistive) */
777 { .driver_data
= MT_CLS_EGALAX
,
778 HID_USB_DEVICE(USB_VENDOR_ID_DWAV
,
779 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D
) },
780 { .driver_data
= MT_CLS_EGALAX
,
781 HID_USB_DEVICE(USB_VENDOR_ID_DWAV
,
782 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E
) },
784 /* eGalax devices (capacitive) */
785 { .driver_data
= MT_CLS_EGALAX
,
786 HID_USB_DEVICE(USB_VENDOR_ID_DWAV
,
787 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C
) },
788 { .driver_data
= MT_CLS_EGALAX
,
789 HID_USB_DEVICE(USB_VENDOR_ID_DWAV
,
790 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B
) },
791 { .driver_data
= MT_CLS_EGALAX
,
792 HID_USB_DEVICE(USB_VENDOR_ID_DWAV
,
793 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1
) },
794 { .driver_data
= MT_CLS_EGALAX
,
795 HID_USB_DEVICE(USB_VENDOR_ID_DWAV
,
796 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA
) },
797 { .driver_data
= MT_CLS_EGALAX
,
798 HID_USB_DEVICE(USB_VENDOR_ID_DWAV
,
799 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302
) },
800 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
801 HID_USB_DEVICE(USB_VENDOR_ID_DWAV
,
802 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001
) },
804 /* Elo TouchSystems IntelliTouch Plus panel */
805 { .driver_data
= MT_CLS_DUAL_NSMU_CONTACTID
,
806 HID_USB_DEVICE(USB_VENDOR_ID_ELO
,
807 USB_DEVICE_ID_ELO_TS2515
) },
809 /* GeneralTouch panel */
810 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
811 HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
812 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS
) },
814 /* GoodTouch panels */
815 { .driver_data
= MT_CLS_DEFAULT
,
816 HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH
,
817 USB_DEVICE_ID_GOODTOUCH_000f
) },
820 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTID
,
821 HID_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT
,
822 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH
) },
825 { .driver_data
= MT_CLS_SERIAL
,
826 HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM
,
827 USB_DEVICE_ID_IDEACOM_IDC6650
) },
829 /* Ilitek dual touch panel */
830 { .driver_data
= MT_CLS_DEFAULT
,
831 HID_USB_DEVICE(USB_VENDOR_ID_ILITEK
,
832 USB_DEVICE_ID_ILITEK_MULTITOUCH
) },
835 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTID
,
836 HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS
,
837 USB_DEVICE_ID_IRTOUCH_INFRARED_USB
) },
839 /* LG Display panels */
840 { .driver_data
= MT_CLS_DEFAULT
,
841 HID_USB_DEVICE(USB_VENDOR_ID_LG
,
842 USB_DEVICE_ID_LG_MULTITOUCH
) },
845 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
846 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO
,
847 USB_DEVICE_ID_CRYSTALTOUCH
) },
848 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
849 HID_USB_DEVICE(USB_VENDOR_ID_LUMIO
,
850 USB_DEVICE_ID_CRYSTALTOUCH_DUAL
) },
853 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
854 HID_USB_DEVICE(USB_VENDOR_ID_ASUS
,
855 USB_DEVICE_ID_ASUS_T91MT
)},
856 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
857 HID_USB_DEVICE(USB_VENDOR_ID_ASUS
,
858 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO
) },
859 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
860 HID_USB_DEVICE(USB_VENDOR_ID_TURBOX
,
861 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART
) },
863 /* Panasonic panels */
864 { .driver_data
= MT_CLS_PANASONIC
,
865 HID_USB_DEVICE(USB_VENDOR_ID_PANASONIC
,
866 USB_DEVICE_ID_PANABOARD_UBT780
) },
867 { .driver_data
= MT_CLS_PANASONIC
,
868 HID_USB_DEVICE(USB_VENDOR_ID_PANASONIC
,
869 USB_DEVICE_ID_PANABOARD_UBT880
) },
871 /* PenMount panels */
872 { .driver_data
= MT_CLS_CONFIDENCE
,
873 HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT
,
874 USB_DEVICE_ID_PENMOUNT_PCI
) },
876 /* PixArt optical touch screen */
877 { .driver_data
= MT_CLS_INRANGE_CONTACTNUMBER
,
878 HID_USB_DEVICE(USB_VENDOR_ID_PIXART
,
879 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN
) },
880 { .driver_data
= MT_CLS_INRANGE_CONTACTNUMBER
,
881 HID_USB_DEVICE(USB_VENDOR_ID_PIXART
,
882 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1
) },
883 { .driver_data
= MT_CLS_INRANGE_CONTACTNUMBER
,
884 HID_USB_DEVICE(USB_VENDOR_ID_PIXART
,
885 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2
) },
887 /* PixCir-based panels */
888 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTID
,
889 HID_USB_DEVICE(USB_VENDOR_ID_HANVON
,
890 USB_DEVICE_ID_HANVON_MULTITOUCH
) },
891 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTID
,
892 HID_USB_DEVICE(USB_VENDOR_ID_CANDO
,
893 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH
) },
895 /* Quanta-based panels */
896 { .driver_data
= MT_CLS_CONFIDENCE_CONTACT_ID
,
897 HID_USB_DEVICE(USB_VENDOR_ID_QUANTA
,
898 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH
) },
899 { .driver_data
= MT_CLS_CONFIDENCE_CONTACT_ID
,
900 HID_USB_DEVICE(USB_VENDOR_ID_QUANTA
,
901 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001
) },
902 { .driver_data
= MT_CLS_CONFIDENCE_CONTACT_ID
,
903 HID_USB_DEVICE(USB_VENDOR_ID_QUANTA
,
904 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008
) },
907 { .driver_data
= MT_CLS_CONFIDENCE
,
908 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM
,
910 { .driver_data
= MT_CLS_CONFIDENCE
,
911 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM
,
912 USB_DEVICE_ID_MTP_STM
)},
913 { .driver_data
= MT_CLS_CONFIDENCE
,
914 HID_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX
,
915 USB_DEVICE_ID_MTP_SITRONIX
)},
918 { .driver_data
= MT_CLS_TOPSEED
,
919 HID_USB_DEVICE(USB_VENDOR_ID_TOPSEED2
,
920 USB_DEVICE_ID_TOPSEED2_PERIPAD_701
) },
922 /* Touch International panels */
923 { .driver_data
= MT_CLS_DEFAULT
,
924 HID_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL
,
925 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH
) },
928 { .driver_data
= MT_CLS_DEFAULT
,
929 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC
,
930 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709
) },
931 { .driver_data
= MT_CLS_DEFAULT
,
932 HID_USB_DEVICE(USB_VENDOR_ID_UNITEC
,
933 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19
) },
935 { .driver_data
= MT_CLS_DEFAULT
,
936 HID_USB_DEVICE(USB_VENDOR_ID_XAT
,
937 USB_DEVICE_ID_XAT_CSR
) },
940 { .driver_data
= MT_CLS_DEFAULT
,
941 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
942 USB_DEVICE_ID_XIROKU_SPX
) },
943 { .driver_data
= MT_CLS_DEFAULT
,
944 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
945 USB_DEVICE_ID_XIROKU_MPX
) },
946 { .driver_data
= MT_CLS_DEFAULT
,
947 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
948 USB_DEVICE_ID_XIROKU_CSR
) },
949 { .driver_data
= MT_CLS_DEFAULT
,
950 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
951 USB_DEVICE_ID_XIROKU_SPX1
) },
952 { .driver_data
= MT_CLS_DEFAULT
,
953 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
954 USB_DEVICE_ID_XIROKU_MPX1
) },
955 { .driver_data
= MT_CLS_DEFAULT
,
956 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
957 USB_DEVICE_ID_XIROKU_CSR1
) },
958 { .driver_data
= MT_CLS_DEFAULT
,
959 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
960 USB_DEVICE_ID_XIROKU_SPX2
) },
961 { .driver_data
= MT_CLS_DEFAULT
,
962 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
963 USB_DEVICE_ID_XIROKU_MPX2
) },
964 { .driver_data
= MT_CLS_DEFAULT
,
965 HID_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
966 USB_DEVICE_ID_XIROKU_CSR2
) },
970 MODULE_DEVICE_TABLE(hid
, mt_devices
);
972 static const struct hid_usage_id mt_grabbed_usages
[] = {
973 { HID_ANY_ID
, HID_ANY_ID
, HID_ANY_ID
},
974 { HID_ANY_ID
- 1, HID_ANY_ID
- 1, HID_ANY_ID
- 1}
977 static struct hid_driver mt_driver
= {
978 .name
= "hid-multitouch",
979 .id_table
= mt_devices
,
982 .input_mapping
= mt_input_mapping
,
983 .input_mapped
= mt_input_mapped
,
984 .feature_mapping
= mt_feature_mapping
,
985 .usage_table
= mt_grabbed_usages
,
988 .reset_resume
= mt_reset_resume
,
992 static int __init
mt_init(void)
994 return hid_register_driver(&mt_driver
);
997 static void __exit
mt_exit(void)
999 hid_unregister_driver(&mt_driver
);
1002 module_init(mt_init
);
1003 module_exit(mt_exit
);