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 __s8 inputmode
; /* InputMode HID feature, -1 if non-existent */
79 __s8 maxcontact_report_id
; /* Maximum Contact Number HID feature,
81 __u8 num_received
; /* how many contacts we received */
82 __u8 num_expected
; /* expected last contact index */
84 __u8 touches_by_report
; /* how many touches are present in one report:
85 * 1 means we should use a serial protocol
86 * > 1 means hybrid (multitouch) protocol */
87 bool curvalid
; /* is the current contact valid? */
88 struct mt_slot
*slots
;
91 /* classes of device behavior */
92 #define MT_CLS_DEFAULT 0x0001
94 #define MT_CLS_SERIAL 0x0002
95 #define MT_CLS_CONFIDENCE 0x0003
96 #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004
97 #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005
98 #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006
99 #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007
100 #define MT_CLS_DUAL_NSMU_CONTACTID 0x0008
101 #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009
103 /* vendor specific classes */
104 #define MT_CLS_3M 0x0101
105 #define MT_CLS_CYPRESS 0x0102
106 #define MT_CLS_EGALAX 0x0103
107 #define MT_CLS_EGALAX_SERIAL 0x0104
108 #define MT_CLS_TOPSEED 0x0105
109 #define MT_CLS_PANASONIC 0x0106
111 #define MT_DEFAULT_MAXCONTACT 10
113 #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p)
114 #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p)
117 * these device-dependent functions determine what slot corresponds
118 * to a valid contact that was just read.
121 static int cypress_compute_slot(struct mt_device
*td
)
123 if (td
->curdata
.contactid
!= 0 || td
->num_received
== 0)
124 return td
->curdata
.contactid
;
129 static int find_slot_from_contactid(struct mt_device
*td
)
132 for (i
= 0; i
< td
->maxcontacts
; ++i
) {
133 if (td
->slots
[i
].contactid
== td
->curdata
.contactid
&&
134 td
->slots
[i
].touch_state
)
137 for (i
= 0; i
< td
->maxcontacts
; ++i
) {
138 if (!td
->slots
[i
].seen_in_this_frame
&&
139 !td
->slots
[i
].touch_state
)
142 /* should not occurs. If this happens that means
143 * that the device sent more touches that it says
144 * in the report descriptor. It is ignored then. */
148 static struct mt_class mt_classes
[] = {
149 { .name
= MT_CLS_DEFAULT
,
150 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
},
151 { .name
= MT_CLS_SERIAL
,
152 .quirks
= MT_QUIRK_ALWAYS_VALID
},
153 { .name
= MT_CLS_CONFIDENCE
,
154 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
},
155 { .name
= MT_CLS_CONFIDENCE_CONTACT_ID
,
156 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
|
157 MT_QUIRK_SLOT_IS_CONTACTID
},
158 { .name
= MT_CLS_CONFIDENCE_MINUS_ONE
,
159 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
|
160 MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE
},
161 { .name
= MT_CLS_DUAL_INRANGE_CONTACTID
,
162 .quirks
= MT_QUIRK_VALID_IS_INRANGE
|
163 MT_QUIRK_SLOT_IS_CONTACTID
,
165 { .name
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
166 .quirks
= MT_QUIRK_VALID_IS_INRANGE
|
167 MT_QUIRK_SLOT_IS_CONTACTNUMBER
,
169 { .name
= MT_CLS_DUAL_NSMU_CONTACTID
,
170 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
|
171 MT_QUIRK_SLOT_IS_CONTACTID
,
173 { .name
= MT_CLS_INRANGE_CONTACTNUMBER
,
174 .quirks
= MT_QUIRK_VALID_IS_INRANGE
|
175 MT_QUIRK_SLOT_IS_CONTACTNUMBER
},
178 * vendor specific classes
181 .quirks
= MT_QUIRK_VALID_IS_CONFIDENCE
|
182 MT_QUIRK_SLOT_IS_CONTACTID
,
186 { .name
= MT_CLS_CYPRESS
,
187 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
|
190 { .name
= MT_CLS_EGALAX
,
191 .quirks
= MT_QUIRK_SLOT_IS_CONTACTID
|
192 MT_QUIRK_VALID_IS_INRANGE
,
196 { .name
= MT_CLS_EGALAX_SERIAL
,
197 .quirks
= MT_QUIRK_SLOT_IS_CONTACTID
|
198 MT_QUIRK_ALWAYS_VALID
,
202 { .name
= MT_CLS_TOPSEED
,
203 .quirks
= MT_QUIRK_ALWAYS_VALID
,
207 { .name
= MT_CLS_PANASONIC
,
208 .quirks
= MT_QUIRK_NOT_SEEN_MEANS_UP
,
214 static ssize_t
mt_show_quirks(struct device
*dev
,
215 struct device_attribute
*attr
,
218 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
219 struct mt_device
*td
= hid_get_drvdata(hdev
);
221 return sprintf(buf
, "%u\n", td
->mtclass
.quirks
);
224 static ssize_t
mt_set_quirks(struct device
*dev
,
225 struct device_attribute
*attr
,
226 const char *buf
, size_t count
)
228 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
229 struct mt_device
*td
= hid_get_drvdata(hdev
);
233 if (kstrtoul(buf
, 0, &val
))
236 td
->mtclass
.quirks
= val
;
241 static DEVICE_ATTR(quirks
, S_IWUSR
| S_IRUGO
, mt_show_quirks
, mt_set_quirks
);
243 static struct attribute
*sysfs_attrs
[] = {
244 &dev_attr_quirks
.attr
,
248 static struct attribute_group mt_attribute_group
= {
252 static void mt_feature_mapping(struct hid_device
*hdev
,
253 struct hid_field
*field
, struct hid_usage
*usage
)
255 struct mt_device
*td
= hid_get_drvdata(hdev
);
257 switch (usage
->hid
) {
258 case HID_DG_INPUTMODE
:
259 td
->inputmode
= field
->report
->id
;
261 case HID_DG_CONTACTMAX
:
262 td
->maxcontact_report_id
= field
->report
->id
;
263 td
->maxcontacts
= field
->value
[0];
264 if (td
->mtclass
.maxcontacts
)
265 /* check if the maxcontacts is given by the class */
266 td
->maxcontacts
= td
->mtclass
.maxcontacts
;
272 static void set_abs(struct input_dev
*input
, unsigned int code
,
273 struct hid_field
*field
, int snratio
)
275 int fmin
= field
->logical_minimum
;
276 int fmax
= field
->logical_maximum
;
277 int fuzz
= snratio
? (fmax
- fmin
) / snratio
: 0;
278 input_set_abs_params(input
, code
, fmin
, fmax
, fuzz
, 0);
281 static void set_last_slot_field(struct hid_usage
*usage
, struct mt_device
*td
,
282 struct hid_input
*hi
)
284 if (!test_bit(usage
->hid
, hi
->input
->absbit
))
285 td
->last_slot_field
= usage
->hid
;
288 static int mt_input_mapping(struct hid_device
*hdev
, struct hid_input
*hi
,
289 struct hid_field
*field
, struct hid_usage
*usage
,
290 unsigned long **bit
, int *max
)
292 struct mt_device
*td
= hid_get_drvdata(hdev
);
293 struct mt_class
*cls
= &td
->mtclass
;
296 /* Only map fields from TouchScreen or TouchPad collections.
297 * We need to ignore fields that belong to other collections
298 * such as Mouse that might have the same GenericDesktop usages. */
299 if (field
->application
== HID_DG_TOUCHSCREEN
)
300 set_bit(INPUT_PROP_DIRECT
, hi
->input
->propbit
);
301 else if (field
->application
!= HID_DG_TOUCHPAD
)
304 /* In case of an indirect device (touchpad), we need to add
305 * specific BTN_TOOL_* to be handled by the synaptics xorg
307 * We also consider that touchscreens providing buttons are touchpads.
309 if (field
->application
== HID_DG_TOUCHPAD
||
310 (usage
->hid
& HID_USAGE_PAGE
) == HID_UP_BUTTON
||
312 set_bit(INPUT_PROP_POINTER
, hi
->input
->propbit
);
313 set_bit(BTN_TOOL_FINGER
, hi
->input
->keybit
);
314 set_bit(BTN_TOOL_DOUBLETAP
, hi
->input
->keybit
);
315 set_bit(BTN_TOOL_TRIPLETAP
, hi
->input
->keybit
);
316 set_bit(BTN_TOOL_QUADTAP
, hi
->input
->keybit
);
319 /* eGalax devices provide a Digitizer.Stylus input which overrides
320 * the correct Digitizers.Finger X/Y ranges.
321 * Let's just ignore this input. */
322 if (field
->physical
== HID_DG_STYLUS
)
325 switch (usage
->hid
& HID_USAGE_PAGE
) {
328 switch (usage
->hid
) {
330 hid_map_usage(hi
, usage
, bit
, max
,
331 EV_ABS
, ABS_MT_POSITION_X
);
332 set_abs(hi
->input
, ABS_MT_POSITION_X
, field
,
334 /* touchscreen emulation */
335 set_abs(hi
->input
, ABS_X
, field
, cls
->sn_move
);
336 set_last_slot_field(usage
, td
, hi
);
337 td
->last_field_index
= field
->index
;
340 hid_map_usage(hi
, usage
, bit
, max
,
341 EV_ABS
, ABS_MT_POSITION_Y
);
342 set_abs(hi
->input
, ABS_MT_POSITION_Y
, field
,
344 /* touchscreen emulation */
345 set_abs(hi
->input
, ABS_Y
, field
, cls
->sn_move
);
346 set_last_slot_field(usage
, td
, hi
);
347 td
->last_field_index
= field
->index
;
352 case HID_UP_DIGITIZER
:
353 switch (usage
->hid
) {
355 set_last_slot_field(usage
, td
, hi
);
356 td
->last_field_index
= field
->index
;
358 case HID_DG_CONFIDENCE
:
359 set_last_slot_field(usage
, td
, hi
);
360 td
->last_field_index
= field
->index
;
362 case HID_DG_TIPSWITCH
:
363 hid_map_usage(hi
, usage
, bit
, max
, EV_KEY
, BTN_TOUCH
);
364 input_set_capability(hi
->input
, EV_KEY
, BTN_TOUCH
);
365 set_last_slot_field(usage
, td
, hi
);
366 td
->last_field_index
= field
->index
;
368 case HID_DG_CONTACTID
:
369 if (!td
->maxcontacts
)
370 td
->maxcontacts
= MT_DEFAULT_MAXCONTACT
;
371 input_mt_init_slots(hi
->input
, td
->maxcontacts
);
372 td
->last_slot_field
= usage
->hid
;
373 td
->last_field_index
= field
->index
;
374 td
->touches_by_report
++;
377 hid_map_usage(hi
, usage
, bit
, max
,
378 EV_ABS
, ABS_MT_TOUCH_MAJOR
);
379 set_abs(hi
->input
, ABS_MT_TOUCH_MAJOR
, field
,
381 set_last_slot_field(usage
, td
, hi
);
382 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 set_last_slot_field(usage
, td
, hi
);
392 td
->last_field_index
= field
->index
;
394 case HID_DG_TIPPRESSURE
:
395 hid_map_usage(hi
, usage
, bit
, max
,
396 EV_ABS
, ABS_MT_PRESSURE
);
397 set_abs(hi
->input
, ABS_MT_PRESSURE
, field
,
399 /* touchscreen emulation */
400 set_abs(hi
->input
, ABS_PRESSURE
, field
,
402 set_last_slot_field(usage
, td
, hi
);
403 td
->last_field_index
= field
->index
;
405 case HID_DG_CONTACTCOUNT
:
406 td
->last_field_index
= field
->index
;
408 case HID_DG_CONTACTMAX
:
409 /* we don't set td->last_slot_field as contactcount and
410 * contact max are global to the report */
411 td
->last_field_index
= field
->index
;
415 /* Legacy devices use TIPSWITCH and not TOUCH.
416 * Let's just ignore this field. */
418 /* let hid-input decide for the others */
422 code
= BTN_MOUSE
+ ((usage
->hid
- 1) & HID_USAGE
);
423 hid_map_usage(hi
, usage
, bit
, max
, EV_KEY
, code
);
424 input_set_capability(hi
->input
, EV_KEY
, code
);
428 /* we do not want to map these: no input-oriented meaning */
435 static int mt_input_mapped(struct hid_device
*hdev
, struct hid_input
*hi
,
436 struct hid_field
*field
, struct hid_usage
*usage
,
437 unsigned long **bit
, int *max
)
439 if (usage
->type
== EV_KEY
|| usage
->type
== EV_ABS
)
440 set_bit(usage
->type
, hi
->input
->evbit
);
445 static int mt_compute_slot(struct mt_device
*td
)
447 __s32 quirks
= td
->mtclass
.quirks
;
449 if (quirks
& MT_QUIRK_SLOT_IS_CONTACTID
)
450 return td
->curdata
.contactid
;
452 if (quirks
& MT_QUIRK_CYPRESS
)
453 return cypress_compute_slot(td
);
455 if (quirks
& MT_QUIRK_SLOT_IS_CONTACTNUMBER
)
456 return td
->num_received
;
458 if (quirks
& MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE
)
459 return td
->curdata
.contactid
- 1;
461 return find_slot_from_contactid(td
);
465 * this function is called when a whole contact has been processed,
466 * so that it can assign it to a slot and store the data there
468 static void mt_complete_slot(struct mt_device
*td
)
470 td
->curdata
.seen_in_this_frame
= true;
472 int slotnum
= mt_compute_slot(td
);
474 if (slotnum
>= 0 && slotnum
< td
->maxcontacts
)
475 td
->slots
[slotnum
] = td
->curdata
;
482 * this function is called when a whole packet has been received and processed,
483 * so that it can decide what to send to the input layer.
485 static void mt_emit_event(struct mt_device
*td
, struct input_dev
*input
)
489 for (i
= 0; i
< td
->maxcontacts
; ++i
) {
490 struct mt_slot
*s
= &(td
->slots
[i
]);
491 if ((td
->mtclass
.quirks
& MT_QUIRK_NOT_SEEN_MEANS_UP
) &&
492 !s
->seen_in_this_frame
) {
493 s
->touch_state
= false;
496 input_mt_slot(input
, i
);
497 input_mt_report_slot_state(input
, MT_TOOL_FINGER
,
499 if (s
->touch_state
) {
500 /* this finger is on the screen */
501 int wide
= (s
->w
> s
->h
);
502 /* divided by two to match visual scale of touch */
503 int major
= max(s
->w
, s
->h
) >> 1;
504 int minor
= min(s
->w
, s
->h
) >> 1;
506 input_event(input
, EV_ABS
, ABS_MT_POSITION_X
, s
->x
);
507 input_event(input
, EV_ABS
, ABS_MT_POSITION_Y
, s
->y
);
508 input_event(input
, EV_ABS
, ABS_MT_ORIENTATION
, wide
);
509 input_event(input
, EV_ABS
, ABS_MT_PRESSURE
, s
->p
);
510 input_event(input
, EV_ABS
, ABS_MT_TOUCH_MAJOR
, major
);
511 input_event(input
, EV_ABS
, ABS_MT_TOUCH_MINOR
, minor
);
513 s
->seen_in_this_frame
= false;
517 input_mt_report_pointer_emulation(input
, true);
519 td
->num_received
= 0;
524 static int mt_event(struct hid_device
*hid
, struct hid_field
*field
,
525 struct hid_usage
*usage
, __s32 value
)
527 struct mt_device
*td
= hid_get_drvdata(hid
);
528 __s32 quirks
= td
->mtclass
.quirks
;
530 if (hid
->claimed
& HID_CLAIMED_INPUT
&& td
->slots
) {
531 switch (usage
->hid
) {
533 if (quirks
& MT_QUIRK_ALWAYS_VALID
)
535 else if (quirks
& MT_QUIRK_VALID_IS_INRANGE
)
536 td
->curvalid
= value
;
538 case HID_DG_TIPSWITCH
:
539 if (quirks
& MT_QUIRK_NOT_SEEN_MEANS_UP
)
540 td
->curvalid
= value
;
541 td
->curdata
.touch_state
= value
;
543 case HID_DG_CONFIDENCE
:
544 if (quirks
& MT_QUIRK_VALID_IS_CONFIDENCE
)
545 td
->curvalid
= value
;
547 case HID_DG_CONTACTID
:
548 td
->curdata
.contactid
= value
;
550 case HID_DG_TIPPRESSURE
:
551 td
->curdata
.p
= value
;
554 td
->curdata
.x
= value
;
557 td
->curdata
.y
= value
;
560 td
->curdata
.w
= value
;
563 td
->curdata
.h
= value
;
565 case HID_DG_CONTACTCOUNT
:
567 * Includes multi-packet support where subsequent
568 * packets are sent with zero contactcount.
571 td
->num_expected
= value
;
578 /* fallback to the generic hidinput handling */
582 if (usage
->hid
== td
->last_slot_field
)
583 mt_complete_slot(td
);
585 if (field
->index
== td
->last_field_index
586 && td
->num_received
>= td
->num_expected
)
587 mt_emit_event(td
, field
->hidinput
->input
);
591 /* we have handled the hidinput part, now remains hiddev */
592 if (hid
->claimed
& HID_CLAIMED_HIDDEV
&& hid
->hiddev_hid_event
)
593 hid
->hiddev_hid_event(hid
, field
, usage
, value
);
598 static void mt_set_input_mode(struct hid_device
*hdev
)
600 struct mt_device
*td
= hid_get_drvdata(hdev
);
601 struct hid_report
*r
;
602 struct hid_report_enum
*re
;
604 if (td
->inputmode
< 0)
607 re
= &(hdev
->report_enum
[HID_FEATURE_REPORT
]);
608 r
= re
->report_id_hash
[td
->inputmode
];
610 r
->field
[0]->value
[0] = 0x02;
611 usbhid_submit_report(hdev
, r
, USB_DIR_OUT
);
615 static void mt_set_maxcontacts(struct hid_device
*hdev
)
617 struct mt_device
*td
= hid_get_drvdata(hdev
);
618 struct hid_report
*r
;
619 struct hid_report_enum
*re
;
622 if (td
->maxcontact_report_id
< 0)
625 if (!td
->mtclass
.maxcontacts
)
628 re
= &hdev
->report_enum
[HID_FEATURE_REPORT
];
629 r
= re
->report_id_hash
[td
->maxcontact_report_id
];
631 max
= td
->mtclass
.maxcontacts
;
632 fieldmax
= r
->field
[0]->logical_maximum
;
633 max
= min(fieldmax
, max
);
634 if (r
->field
[0]->value
[0] != max
) {
635 r
->field
[0]->value
[0] = max
;
636 usbhid_submit_report(hdev
, r
, USB_DIR_OUT
);
641 static void mt_post_parse_default_settings(struct mt_device
*td
)
643 __s32 quirks
= td
->mtclass
.quirks
;
645 /* unknown serial device needs special quirks */
646 if (td
->touches_by_report
== 1) {
647 quirks
|= MT_QUIRK_ALWAYS_VALID
;
648 quirks
&= ~MT_QUIRK_NOT_SEEN_MEANS_UP
;
649 quirks
&= ~MT_QUIRK_VALID_IS_INRANGE
;
650 quirks
&= ~MT_QUIRK_VALID_IS_CONFIDENCE
;
653 td
->mtclass
.quirks
= quirks
;
656 static int mt_probe(struct hid_device
*hdev
, const struct hid_device_id
*id
)
659 struct mt_device
*td
;
660 struct mt_class
*mtclass
= mt_classes
; /* MT_CLS_DEFAULT */
663 for (i
= 0; mt_classes
[i
].name
; i
++) {
664 if (id
->driver_data
== mt_classes
[i
].name
) {
665 mtclass
= &(mt_classes
[i
]);
671 /* This allows the driver to correctly support devices
672 * that emit events over several HID messages.
674 hdev
->quirks
|= HID_QUIRK_NO_INPUT_SYNC
;
676 td
= kzalloc(sizeof(struct mt_device
), GFP_KERNEL
);
678 dev_err(&hdev
->dev
, "cannot allocate multitouch data\n");
681 td
->mtclass
= *mtclass
;
683 td
->maxcontact_report_id
= -1;
684 hid_set_drvdata(hdev
, td
);
686 ret
= hid_parse(hdev
);
690 ret
= hid_hw_start(hdev
, HID_CONNECT_DEFAULT
);
694 if (id
->vendor
== HID_ANY_ID
&& id
->product
== HID_ANY_ID
)
695 mt_post_parse_default_settings(td
);
697 td
->slots
= kzalloc(td
->maxcontacts
* sizeof(struct mt_slot
),
700 dev_err(&hdev
->dev
, "cannot allocate multitouch slots\n");
706 ret
= sysfs_create_group(&hdev
->dev
.kobj
, &mt_attribute_group
);
708 mt_set_maxcontacts(hdev
);
709 mt_set_input_mode(hdev
);
719 static int mt_reset_resume(struct hid_device
*hdev
)
721 mt_set_maxcontacts(hdev
);
722 mt_set_input_mode(hdev
);
727 static void mt_remove(struct hid_device
*hdev
)
729 struct mt_device
*td
= hid_get_drvdata(hdev
);
730 sysfs_remove_group(&hdev
->dev
.kobj
, &mt_attribute_group
);
734 hid_set_drvdata(hdev
, NULL
);
737 static const struct hid_device_id mt_devices
[] = {
740 { .driver_data
= MT_CLS_3M
,
741 MT_USB_DEVICE(USB_VENDOR_ID_3M
,
742 USB_DEVICE_ID_3M1968
) },
743 { .driver_data
= MT_CLS_3M
,
744 MT_USB_DEVICE(USB_VENDOR_ID_3M
,
745 USB_DEVICE_ID_3M2256
) },
746 { .driver_data
= MT_CLS_3M
,
747 MT_USB_DEVICE(USB_VENDOR_ID_3M
,
748 USB_DEVICE_ID_3M3266
) },
750 /* ActionStar panels */
751 { .driver_data
= MT_CLS_DEFAULT
,
752 MT_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR
,
753 USB_DEVICE_ID_ACTIONSTAR_1011
) },
756 { .driver_data
= MT_CLS_SERIAL
,
757 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL
,
758 USB_DEVICE_ID_ATMEL_MULTITOUCH
) },
759 { .driver_data
= MT_CLS_SERIAL
,
760 MT_USB_DEVICE(USB_VENDOR_ID_ATMEL
,
761 USB_DEVICE_ID_ATMEL_MXT_DIGITIZER
) },
764 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
765 MT_USB_DEVICE(USB_VENDOR_ID_CANDO
,
766 USB_DEVICE_ID_CANDO_MULTI_TOUCH
) },
767 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
768 MT_USB_DEVICE(USB_VENDOR_ID_CANDO
,
769 USB_DEVICE_ID_CANDO_MULTI_TOUCH_10_1
) },
770 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
771 MT_USB_DEVICE(USB_VENDOR_ID_CANDO
,
772 USB_DEVICE_ID_CANDO_MULTI_TOUCH_11_6
) },
773 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
774 MT_USB_DEVICE(USB_VENDOR_ID_CANDO
,
775 USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6
) },
777 /* Chunghwa Telecom touch panels */
778 { .driver_data
= MT_CLS_DEFAULT
,
779 MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT
,
780 USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH
) },
783 { .driver_data
= MT_CLS_DEFAULT
,
784 MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH
,
785 USB_DEVICE_ID_CVTOUCH_SCREEN
) },
788 { .driver_data
= MT_CLS_CYPRESS
,
789 HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS
,
790 USB_DEVICE_ID_CYPRESS_TRUETOUCH
) },
792 /* eGalax devices (resistive) */
793 { .driver_data
= MT_CLS_EGALAX
,
794 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
795 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D
) },
796 { .driver_data
= MT_CLS_EGALAX
,
797 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
798 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E
) },
800 /* eGalax devices (capacitive) */
801 { .driver_data
= MT_CLS_EGALAX
,
802 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
803 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C
) },
804 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
805 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
806 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207
) },
807 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
808 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
809 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E
) },
810 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
811 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
812 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224
) },
813 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
814 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
815 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A
) },
816 { .driver_data
= MT_CLS_EGALAX
,
817 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
818 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B
) },
819 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
820 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
821 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262
) },
822 { .driver_data
= MT_CLS_EGALAX
,
823 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
824 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1
) },
825 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
826 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
827 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA
) },
828 { .driver_data
= MT_CLS_EGALAX
,
829 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
830 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA
) },
831 { .driver_data
= MT_CLS_EGALAX
,
832 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
833 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302
) },
834 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
835 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
836 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349
) },
837 { .driver_data
= MT_CLS_EGALAX_SERIAL
,
838 MT_USB_DEVICE(USB_VENDOR_ID_DWAV
,
839 USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001
) },
841 /* Elo TouchSystems IntelliTouch Plus panel */
842 { .driver_data
= MT_CLS_DUAL_NSMU_CONTACTID
,
843 MT_USB_DEVICE(USB_VENDOR_ID_ELO
,
844 USB_DEVICE_ID_ELO_TS2515
) },
846 /* GeneralTouch panel */
847 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTNUMBER
,
848 MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH
,
849 USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS
) },
851 /* Gametel game controller */
852 { .driver_data
= MT_CLS_DEFAULT
,
853 MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL
,
854 USB_DEVICE_ID_GAMETEL_MT_MODE
) },
856 /* GoodTouch panels */
857 { .driver_data
= MT_CLS_DEFAULT
,
858 MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH
,
859 USB_DEVICE_ID_GOODTOUCH_000f
) },
862 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTID
,
863 MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT
,
864 USB_DEVICE_ID_HANVON_ALT_MULTITOUCH
) },
867 { .driver_data
= MT_CLS_SERIAL
,
868 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM
,
869 USB_DEVICE_ID_IDEACOM_IDC6650
) },
870 { .driver_data
= MT_CLS_SERIAL
,
871 MT_USB_DEVICE(USB_VENDOR_ID_IDEACOM
,
872 USB_DEVICE_ID_IDEACOM_IDC6651
) },
874 /* Ilitek dual touch panel */
875 { .driver_data
= MT_CLS_DEFAULT
,
876 MT_USB_DEVICE(USB_VENDOR_ID_ILITEK
,
877 USB_DEVICE_ID_ILITEK_MULTITOUCH
) },
880 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTID
,
881 MT_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS
,
882 USB_DEVICE_ID_IRTOUCH_INFRARED_USB
) },
884 /* LG Display panels */
885 { .driver_data
= MT_CLS_DEFAULT
,
886 MT_USB_DEVICE(USB_VENDOR_ID_LG
,
887 USB_DEVICE_ID_LG_MULTITOUCH
) },
890 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
891 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO
,
892 USB_DEVICE_ID_CRYSTALTOUCH
) },
893 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
894 MT_USB_DEVICE(USB_VENDOR_ID_LUMIO
,
895 USB_DEVICE_ID_CRYSTALTOUCH_DUAL
) },
898 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
899 MT_USB_DEVICE(USB_VENDOR_ID_ASUS
,
900 USB_DEVICE_ID_ASUS_T91MT
)},
901 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
902 MT_USB_DEVICE(USB_VENDOR_ID_ASUS
,
903 USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO
) },
904 { .driver_data
= MT_CLS_CONFIDENCE_MINUS_ONE
,
905 MT_USB_DEVICE(USB_VENDOR_ID_TURBOX
,
906 USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART
) },
908 /* Panasonic panels */
909 { .driver_data
= MT_CLS_PANASONIC
,
910 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC
,
911 USB_DEVICE_ID_PANABOARD_UBT780
) },
912 { .driver_data
= MT_CLS_PANASONIC
,
913 MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC
,
914 USB_DEVICE_ID_PANABOARD_UBT880
) },
916 /* PenMount panels */
917 { .driver_data
= MT_CLS_CONFIDENCE
,
918 MT_USB_DEVICE(USB_VENDOR_ID_PENMOUNT
,
919 USB_DEVICE_ID_PENMOUNT_PCI
) },
921 /* PixArt optical touch screen */
922 { .driver_data
= MT_CLS_INRANGE_CONTACTNUMBER
,
923 MT_USB_DEVICE(USB_VENDOR_ID_PIXART
,
924 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN
) },
925 { .driver_data
= MT_CLS_INRANGE_CONTACTNUMBER
,
926 MT_USB_DEVICE(USB_VENDOR_ID_PIXART
,
927 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1
) },
928 { .driver_data
= MT_CLS_INRANGE_CONTACTNUMBER
,
929 MT_USB_DEVICE(USB_VENDOR_ID_PIXART
,
930 USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2
) },
932 /* PixCir-based panels */
933 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTID
,
934 MT_USB_DEVICE(USB_VENDOR_ID_HANVON
,
935 USB_DEVICE_ID_HANVON_MULTITOUCH
) },
936 { .driver_data
= MT_CLS_DUAL_INRANGE_CONTACTID
,
937 MT_USB_DEVICE(USB_VENDOR_ID_CANDO
,
938 USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH
) },
940 /* Quanta-based panels */
941 { .driver_data
= MT_CLS_CONFIDENCE_CONTACT_ID
,
942 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA
,
943 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH
) },
944 { .driver_data
= MT_CLS_CONFIDENCE_CONTACT_ID
,
945 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA
,
946 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001
) },
947 { .driver_data
= MT_CLS_CONFIDENCE_CONTACT_ID
,
948 MT_USB_DEVICE(USB_VENDOR_ID_QUANTA
,
949 USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008
) },
952 { .driver_data
= MT_CLS_CONFIDENCE
,
953 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM
,
955 { .driver_data
= MT_CLS_CONFIDENCE
,
956 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM
,
957 USB_DEVICE_ID_MTP_STM
)},
958 { .driver_data
= MT_CLS_CONFIDENCE
,
959 MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_SITRONIX
,
960 USB_DEVICE_ID_MTP_SITRONIX
)},
963 { .driver_data
= MT_CLS_TOPSEED
,
964 MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2
,
965 USB_DEVICE_ID_TOPSEED2_PERIPAD_701
) },
967 /* Touch International panels */
968 { .driver_data
= MT_CLS_DEFAULT
,
969 MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL
,
970 USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH
) },
973 { .driver_data
= MT_CLS_DEFAULT
,
974 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC
,
975 USB_DEVICE_ID_UNITEC_USB_TOUCH_0709
) },
976 { .driver_data
= MT_CLS_DEFAULT
,
977 MT_USB_DEVICE(USB_VENDOR_ID_UNITEC
,
978 USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19
) },
980 { .driver_data
= MT_CLS_DEFAULT
,
981 MT_USB_DEVICE(USB_VENDOR_ID_XAT
,
982 USB_DEVICE_ID_XAT_CSR
) },
985 { .driver_data
= MT_CLS_DEFAULT
,
986 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
987 USB_DEVICE_ID_XIROKU_SPX
) },
988 { .driver_data
= MT_CLS_DEFAULT
,
989 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
990 USB_DEVICE_ID_XIROKU_MPX
) },
991 { .driver_data
= MT_CLS_DEFAULT
,
992 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
993 USB_DEVICE_ID_XIROKU_CSR
) },
994 { .driver_data
= MT_CLS_DEFAULT
,
995 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
996 USB_DEVICE_ID_XIROKU_SPX1
) },
997 { .driver_data
= MT_CLS_DEFAULT
,
998 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
999 USB_DEVICE_ID_XIROKU_MPX1
) },
1000 { .driver_data
= MT_CLS_DEFAULT
,
1001 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1002 USB_DEVICE_ID_XIROKU_CSR1
) },
1003 { .driver_data
= MT_CLS_DEFAULT
,
1004 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1005 USB_DEVICE_ID_XIROKU_SPX2
) },
1006 { .driver_data
= MT_CLS_DEFAULT
,
1007 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1008 USB_DEVICE_ID_XIROKU_MPX2
) },
1009 { .driver_data
= MT_CLS_DEFAULT
,
1010 MT_USB_DEVICE(USB_VENDOR_ID_XIROKU
,
1011 USB_DEVICE_ID_XIROKU_CSR2
) },
1013 /* Generic MT device */
1014 { HID_DEVICE(HID_BUS_ANY
, HID_GROUP_MULTITOUCH
, HID_ANY_ID
, HID_ANY_ID
) },
1017 MODULE_DEVICE_TABLE(hid
, mt_devices
);
1019 static const struct hid_usage_id mt_grabbed_usages
[] = {
1020 { HID_ANY_ID
, HID_ANY_ID
, HID_ANY_ID
},
1021 { HID_ANY_ID
- 1, HID_ANY_ID
- 1, HID_ANY_ID
- 1}
1024 static struct hid_driver mt_driver
= {
1025 .name
= "hid-multitouch",
1026 .id_table
= mt_devices
,
1028 .remove
= mt_remove
,
1029 .input_mapping
= mt_input_mapping
,
1030 .input_mapped
= mt_input_mapped
,
1031 .feature_mapping
= mt_feature_mapping
,
1032 .usage_table
= mt_grabbed_usages
,
1035 .reset_resume
= mt_reset_resume
,
1039 static int __init
mt_init(void)
1041 return hid_register_driver(&mt_driver
);
1044 static void __exit
mt_exit(void)
1046 hid_unregister_driver(&mt_driver
);
1049 module_init(mt_init
);
1050 module_exit(mt_exit
);