1 | // SPDX-License-Identifier: GPL-2.0-or-later |
2 | /* |
3 | * HID driver for multitouch panels |
4 | * |
5 | * Copyright (c) 2010-2012 Stephane Chatty <chatty@enac.fr> |
6 | * Copyright (c) 2010-2013 Benjamin Tissoires <benjamin.tissoires@gmail.com> |
7 | * Copyright (c) 2010-2012 Ecole Nationale de l'Aviation Civile, France |
8 | * Copyright (c) 2012-2013 Red Hat, Inc |
9 | * |
10 | * This code is partly based on hid-egalax.c: |
11 | * |
12 | * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr> |
13 | * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> |
14 | * Copyright (c) 2010 Canonical, Ltd. |
15 | * |
16 | * This code is partly based on hid-3m-pct.c: |
17 | * |
18 | * Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr> |
19 | * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> |
20 | * Copyright (c) 2010 Canonical, Ltd. |
21 | */ |
22 | |
23 | /* |
24 | */ |
25 | |
26 | /* |
27 | * This driver is regularly tested thanks to the test suite in hid-tools[1]. |
28 | * Please run these regression tests before patching this module so that |
29 | * your patch won't break existing known devices. |
30 | * |
31 | * [1] https://gitlab.freedesktop.org/libevdev/hid-tools |
32 | */ |
33 | |
34 | #include <linux/device.h> |
35 | #include <linux/hid.h> |
36 | #include <linux/module.h> |
37 | #include <linux/slab.h> |
38 | #include <linux/input/mt.h> |
39 | #include <linux/jiffies.h> |
40 | #include <linux/string.h> |
41 | #include <linux/timer.h> |
42 | |
43 | |
44 | MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>" ); |
45 | MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>" ); |
46 | MODULE_DESCRIPTION("HID multitouch panels" ); |
47 | MODULE_LICENSE("GPL" ); |
48 | |
49 | #include "hid-ids.h" |
50 | |
51 | /* quirks to control the device */ |
52 | #define MT_QUIRK_NOT_SEEN_MEANS_UP BIT(0) |
53 | #define MT_QUIRK_SLOT_IS_CONTACTID BIT(1) |
54 | #define MT_QUIRK_CYPRESS BIT(2) |
55 | #define MT_QUIRK_SLOT_IS_CONTACTNUMBER BIT(3) |
56 | #define MT_QUIRK_ALWAYS_VALID BIT(4) |
57 | #define MT_QUIRK_VALID_IS_INRANGE BIT(5) |
58 | #define MT_QUIRK_VALID_IS_CONFIDENCE BIT(6) |
59 | #define MT_QUIRK_CONFIDENCE BIT(7) |
60 | #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE BIT(8) |
61 | #define MT_QUIRK_NO_AREA BIT(9) |
62 | #define MT_QUIRK_IGNORE_DUPLICATES BIT(10) |
63 | #define MT_QUIRK_HOVERING BIT(11) |
64 | #define MT_QUIRK_CONTACT_CNT_ACCURATE BIT(12) |
65 | #define MT_QUIRK_FORCE_GET_FEATURE BIT(13) |
66 | #define MT_QUIRK_FIX_CONST_CONTACT_ID BIT(14) |
67 | #define MT_QUIRK_TOUCH_SIZE_SCALING BIT(15) |
68 | #define MT_QUIRK_STICKY_FINGERS BIT(16) |
69 | #define MT_QUIRK_ASUS_CUSTOM_UP BIT(17) |
70 | #define MT_QUIRK_WIN8_PTP_BUTTONS BIT(18) |
71 | #define MT_QUIRK_SEPARATE_APP_REPORT BIT(19) |
72 | #define MT_QUIRK_FORCE_MULTI_INPUT BIT(20) |
73 | #define MT_QUIRK_DISABLE_WAKEUP BIT(21) |
74 | #define MT_QUIRK_ORIENTATION_INVERT BIT(22) |
75 | |
76 | #define MT_INPUTMODE_TOUCHSCREEN 0x02 |
77 | #define MT_INPUTMODE_TOUCHPAD 0x03 |
78 | |
79 | #define MT_BUTTONTYPE_CLICKPAD 0 |
80 | |
81 | enum latency_mode { |
82 | HID_LATENCY_NORMAL = 0, |
83 | HID_LATENCY_HIGH = 1, |
84 | }; |
85 | |
86 | #define MT_IO_FLAGS_RUNNING 0 |
87 | #define MT_IO_FLAGS_ACTIVE_SLOTS 1 |
88 | #define MT_IO_FLAGS_PENDING_SLOTS 2 |
89 | |
90 | static const bool mtrue = true; /* default for true */ |
91 | static const bool mfalse; /* default for false */ |
92 | static const __s32 mzero; /* default for 0 */ |
93 | |
94 | #define DEFAULT_TRUE ((void *)&mtrue) |
95 | #define DEFAULT_FALSE ((void *)&mfalse) |
96 | #define DEFAULT_ZERO ((void *)&mzero) |
97 | |
98 | struct mt_usages { |
99 | struct list_head list; |
100 | __s32 *x, *y, *cx, *cy, *p, *w, *h, *a; |
101 | __s32 *contactid; /* the device ContactID assigned to this slot */ |
102 | bool *tip_state; /* is the touch valid? */ |
103 | bool *inrange_state; /* is the finger in proximity of the sensor? */ |
104 | bool *confidence_state; /* is the touch made by a finger? */ |
105 | }; |
106 | |
107 | struct mt_application { |
108 | struct list_head list; |
109 | unsigned int application; |
110 | unsigned int report_id; |
111 | struct list_head mt_usages; /* mt usages list */ |
112 | |
113 | __s32 quirks; |
114 | |
115 | __s32 *scantime; /* scantime reported */ |
116 | __s32 scantime_logical_max; /* max value for raw scantime */ |
117 | |
118 | __s32 *raw_cc; /* contact count in the report */ |
119 | int left_button_state; /* left button state */ |
120 | unsigned int mt_flags; /* flags to pass to input-mt */ |
121 | |
122 | unsigned long *pending_palm_slots; /* slots where we reported palm |
123 | * and need to release */ |
124 | |
125 | __u8 num_received; /* how many contacts we received */ |
126 | __u8 num_expected; /* expected last contact index */ |
127 | __u8 buttons_count; /* number of physical buttons per touchpad */ |
128 | __u8 touches_by_report; /* how many touches are present in one report: |
129 | * 1 means we should use a serial protocol |
130 | * > 1 means hybrid (multitouch) protocol |
131 | */ |
132 | |
133 | __s32 dev_time; /* the scan time provided by the device */ |
134 | unsigned long jiffies; /* the frame's jiffies */ |
135 | int timestamp; /* the timestamp to be sent */ |
136 | int prev_scantime; /* scantime reported previously */ |
137 | |
138 | bool have_contact_count; |
139 | }; |
140 | |
141 | struct mt_class { |
142 | __s32 name; /* MT_CLS */ |
143 | __s32 quirks; |
144 | __s32 sn_move; /* Signal/noise ratio for move events */ |
145 | __s32 sn_width; /* Signal/noise ratio for width events */ |
146 | __s32 sn_height; /* Signal/noise ratio for height events */ |
147 | __s32 sn_pressure; /* Signal/noise ratio for pressure events */ |
148 | __u8 maxcontacts; |
149 | bool is_indirect; /* true for touchpads */ |
150 | bool export_all_inputs; /* do not ignore mouse, keyboards, etc... */ |
151 | }; |
152 | |
153 | struct mt_report_data { |
154 | struct list_head list; |
155 | struct hid_report *report; |
156 | struct mt_application *application; |
157 | bool is_mt_collection; |
158 | }; |
159 | |
160 | struct mt_device { |
161 | struct mt_class mtclass; /* our mt device class */ |
162 | struct timer_list release_timer; /* to release sticky fingers */ |
163 | struct hid_device *hdev; /* hid_device we're attached to */ |
164 | unsigned long mt_io_flags; /* mt flags (MT_IO_FLAGS_*) */ |
165 | __u8 inputmode_value; /* InputMode HID feature value */ |
166 | __u8 maxcontacts; |
167 | bool is_buttonpad; /* is this device a button pad? */ |
168 | bool serial_maybe; /* need to check for serial protocol */ |
169 | |
170 | struct list_head applications; |
171 | struct list_head reports; |
172 | }; |
173 | |
174 | static void mt_post_parse_default_settings(struct mt_device *td, |
175 | struct mt_application *app); |
176 | static void mt_post_parse(struct mt_device *td, struct mt_application *app); |
177 | |
178 | /* classes of device behavior */ |
179 | #define MT_CLS_DEFAULT 0x0001 |
180 | |
181 | #define MT_CLS_SERIAL 0x0002 |
182 | #define MT_CLS_CONFIDENCE 0x0003 |
183 | #define MT_CLS_CONFIDENCE_CONTACT_ID 0x0004 |
184 | #define MT_CLS_CONFIDENCE_MINUS_ONE 0x0005 |
185 | #define MT_CLS_DUAL_INRANGE_CONTACTID 0x0006 |
186 | #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 0x0007 |
187 | /* reserved 0x0008 */ |
188 | #define MT_CLS_INRANGE_CONTACTNUMBER 0x0009 |
189 | #define MT_CLS_NSMU 0x000a |
190 | /* reserved 0x0010 */ |
191 | /* reserved 0x0011 */ |
192 | #define MT_CLS_WIN_8 0x0012 |
193 | #define MT_CLS_EXPORT_ALL_INPUTS 0x0013 |
194 | /* reserved 0x0014 */ |
195 | #define MT_CLS_WIN_8_FORCE_MULTI_INPUT 0x0015 |
196 | #define MT_CLS_WIN_8_DISABLE_WAKEUP 0x0016 |
197 | #define MT_CLS_WIN_8_NO_STICKY_FINGERS 0x0017 |
198 | #define MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU 0x0018 |
199 | |
200 | /* vendor specific classes */ |
201 | #define MT_CLS_3M 0x0101 |
202 | /* reserved 0x0102 */ |
203 | #define MT_CLS_EGALAX 0x0103 |
204 | #define MT_CLS_EGALAX_SERIAL 0x0104 |
205 | #define MT_CLS_TOPSEED 0x0105 |
206 | #define MT_CLS_PANASONIC 0x0106 |
207 | #define MT_CLS_FLATFROG 0x0107 |
208 | #define MT_CLS_GENERALTOUCH_TWOFINGERS 0x0108 |
209 | #define MT_CLS_GENERALTOUCH_PWT_TENFINGERS 0x0109 |
210 | #define MT_CLS_LG 0x010a |
211 | #define MT_CLS_ASUS 0x010b |
212 | #define MT_CLS_VTL 0x0110 |
213 | #define MT_CLS_GOOGLE 0x0111 |
214 | #define MT_CLS_RAZER_BLADE_STEALTH 0x0112 |
215 | #define MT_CLS_SMART_TECH 0x0113 |
216 | |
217 | #define MT_DEFAULT_MAXCONTACT 10 |
218 | #define MT_MAX_MAXCONTACT 250 |
219 | |
220 | /* |
221 | * Resync device and local timestamps after that many microseconds without |
222 | * receiving data. |
223 | */ |
224 | #define MAX_TIMESTAMP_INTERVAL 1000000 |
225 | |
226 | #define MT_USB_DEVICE(v, p) HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH, v, p) |
227 | #define MT_BT_DEVICE(v, p) HID_DEVICE(BUS_BLUETOOTH, HID_GROUP_MULTITOUCH, v, p) |
228 | |
229 | /* |
230 | * these device-dependent functions determine what slot corresponds |
231 | * to a valid contact that was just read. |
232 | */ |
233 | |
234 | static int cypress_compute_slot(struct mt_application *application, |
235 | struct mt_usages *slot) |
236 | { |
237 | if (*slot->contactid != 0 || application->num_received == 0) |
238 | return *slot->contactid; |
239 | else |
240 | return -1; |
241 | } |
242 | |
243 | static const struct mt_class mt_classes[] = { |
244 | { .name = MT_CLS_DEFAULT, |
245 | .quirks = MT_QUIRK_ALWAYS_VALID | |
246 | MT_QUIRK_CONTACT_CNT_ACCURATE }, |
247 | { .name = MT_CLS_NSMU, |
248 | .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, |
249 | { .name = MT_CLS_SERIAL, |
250 | .quirks = MT_QUIRK_ALWAYS_VALID}, |
251 | { .name = MT_CLS_CONFIDENCE, |
252 | .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, |
253 | { .name = MT_CLS_CONFIDENCE_CONTACT_ID, |
254 | .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | |
255 | MT_QUIRK_SLOT_IS_CONTACTID }, |
256 | { .name = MT_CLS_CONFIDENCE_MINUS_ONE, |
257 | .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | |
258 | MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE }, |
259 | { .name = MT_CLS_DUAL_INRANGE_CONTACTID, |
260 | .quirks = MT_QUIRK_VALID_IS_INRANGE | |
261 | MT_QUIRK_SLOT_IS_CONTACTID, |
262 | .maxcontacts = 2 }, |
263 | { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, |
264 | .quirks = MT_QUIRK_VALID_IS_INRANGE | |
265 | MT_QUIRK_SLOT_IS_CONTACTNUMBER, |
266 | .maxcontacts = 2 }, |
267 | { .name = MT_CLS_INRANGE_CONTACTNUMBER, |
268 | .quirks = MT_QUIRK_VALID_IS_INRANGE | |
269 | MT_QUIRK_SLOT_IS_CONTACTNUMBER }, |
270 | { .name = MT_CLS_WIN_8, |
271 | .quirks = MT_QUIRK_ALWAYS_VALID | |
272 | MT_QUIRK_IGNORE_DUPLICATES | |
273 | MT_QUIRK_HOVERING | |
274 | MT_QUIRK_CONTACT_CNT_ACCURATE | |
275 | MT_QUIRK_STICKY_FINGERS | |
276 | MT_QUIRK_WIN8_PTP_BUTTONS, |
277 | .export_all_inputs = true }, |
278 | { .name = MT_CLS_EXPORT_ALL_INPUTS, |
279 | .quirks = MT_QUIRK_ALWAYS_VALID | |
280 | MT_QUIRK_CONTACT_CNT_ACCURATE, |
281 | .export_all_inputs = true }, |
282 | { .name = MT_CLS_WIN_8_FORCE_MULTI_INPUT, |
283 | .quirks = MT_QUIRK_ALWAYS_VALID | |
284 | MT_QUIRK_IGNORE_DUPLICATES | |
285 | MT_QUIRK_HOVERING | |
286 | MT_QUIRK_CONTACT_CNT_ACCURATE | |
287 | MT_QUIRK_STICKY_FINGERS | |
288 | MT_QUIRK_WIN8_PTP_BUTTONS | |
289 | MT_QUIRK_FORCE_MULTI_INPUT, |
290 | .export_all_inputs = true }, |
291 | { .name = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU, |
292 | .quirks = MT_QUIRK_IGNORE_DUPLICATES | |
293 | MT_QUIRK_HOVERING | |
294 | MT_QUIRK_CONTACT_CNT_ACCURATE | |
295 | MT_QUIRK_STICKY_FINGERS | |
296 | MT_QUIRK_WIN8_PTP_BUTTONS | |
297 | MT_QUIRK_FORCE_MULTI_INPUT | |
298 | MT_QUIRK_NOT_SEEN_MEANS_UP, |
299 | .export_all_inputs = true }, |
300 | { .name = MT_CLS_WIN_8_DISABLE_WAKEUP, |
301 | .quirks = MT_QUIRK_ALWAYS_VALID | |
302 | MT_QUIRK_IGNORE_DUPLICATES | |
303 | MT_QUIRK_HOVERING | |
304 | MT_QUIRK_CONTACT_CNT_ACCURATE | |
305 | MT_QUIRK_STICKY_FINGERS | |
306 | MT_QUIRK_WIN8_PTP_BUTTONS | |
307 | MT_QUIRK_DISABLE_WAKEUP, |
308 | .export_all_inputs = true }, |
309 | { .name = MT_CLS_WIN_8_NO_STICKY_FINGERS, |
310 | .quirks = MT_QUIRK_ALWAYS_VALID | |
311 | MT_QUIRK_IGNORE_DUPLICATES | |
312 | MT_QUIRK_HOVERING | |
313 | MT_QUIRK_CONTACT_CNT_ACCURATE | |
314 | MT_QUIRK_WIN8_PTP_BUTTONS, |
315 | .export_all_inputs = true }, |
316 | |
317 | /* |
318 | * vendor specific classes |
319 | */ |
320 | { .name = MT_CLS_3M, |
321 | .quirks = MT_QUIRK_VALID_IS_CONFIDENCE | |
322 | MT_QUIRK_SLOT_IS_CONTACTID | |
323 | MT_QUIRK_TOUCH_SIZE_SCALING, |
324 | .sn_move = 2048, |
325 | .sn_width = 128, |
326 | .sn_height = 128, |
327 | .maxcontacts = 60, |
328 | }, |
329 | { .name = MT_CLS_EGALAX, |
330 | .quirks = MT_QUIRK_SLOT_IS_CONTACTID | |
331 | MT_QUIRK_VALID_IS_INRANGE, |
332 | .sn_move = 4096, |
333 | .sn_pressure = 32, |
334 | }, |
335 | { .name = MT_CLS_EGALAX_SERIAL, |
336 | .quirks = MT_QUIRK_SLOT_IS_CONTACTID | |
337 | MT_QUIRK_ALWAYS_VALID, |
338 | .sn_move = 4096, |
339 | .sn_pressure = 32, |
340 | }, |
341 | { .name = MT_CLS_TOPSEED, |
342 | .quirks = MT_QUIRK_ALWAYS_VALID, |
343 | .is_indirect = true, |
344 | .maxcontacts = 2, |
345 | }, |
346 | { .name = MT_CLS_PANASONIC, |
347 | .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP, |
348 | .maxcontacts = 4 }, |
349 | { .name = MT_CLS_GENERALTOUCH_TWOFINGERS, |
350 | .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | |
351 | MT_QUIRK_VALID_IS_INRANGE | |
352 | MT_QUIRK_SLOT_IS_CONTACTID, |
353 | .maxcontacts = 2 |
354 | }, |
355 | { .name = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, |
356 | .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | |
357 | MT_QUIRK_SLOT_IS_CONTACTID |
358 | }, |
359 | |
360 | { .name = MT_CLS_FLATFROG, |
361 | .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | |
362 | MT_QUIRK_NO_AREA, |
363 | .sn_move = 2048, |
364 | .maxcontacts = 40, |
365 | }, |
366 | { .name = MT_CLS_LG, |
367 | .quirks = MT_QUIRK_ALWAYS_VALID | |
368 | MT_QUIRK_FIX_CONST_CONTACT_ID | |
369 | MT_QUIRK_IGNORE_DUPLICATES | |
370 | MT_QUIRK_HOVERING | |
371 | MT_QUIRK_CONTACT_CNT_ACCURATE }, |
372 | { .name = MT_CLS_ASUS, |
373 | .quirks = MT_QUIRK_ALWAYS_VALID | |
374 | MT_QUIRK_CONTACT_CNT_ACCURATE | |
375 | MT_QUIRK_ASUS_CUSTOM_UP }, |
376 | { .name = MT_CLS_VTL, |
377 | .quirks = MT_QUIRK_ALWAYS_VALID | |
378 | MT_QUIRK_CONTACT_CNT_ACCURATE | |
379 | MT_QUIRK_FORCE_GET_FEATURE, |
380 | }, |
381 | { .name = MT_CLS_GOOGLE, |
382 | .quirks = MT_QUIRK_ALWAYS_VALID | |
383 | MT_QUIRK_CONTACT_CNT_ACCURATE | |
384 | MT_QUIRK_SLOT_IS_CONTACTID | |
385 | MT_QUIRK_HOVERING |
386 | }, |
387 | { .name = MT_CLS_RAZER_BLADE_STEALTH, |
388 | .quirks = MT_QUIRK_ALWAYS_VALID | |
389 | MT_QUIRK_IGNORE_DUPLICATES | |
390 | MT_QUIRK_HOVERING | |
391 | MT_QUIRK_CONTACT_CNT_ACCURATE | |
392 | MT_QUIRK_WIN8_PTP_BUTTONS, |
393 | }, |
394 | { .name = MT_CLS_SMART_TECH, |
395 | .quirks = MT_QUIRK_ALWAYS_VALID | |
396 | MT_QUIRK_IGNORE_DUPLICATES | |
397 | MT_QUIRK_CONTACT_CNT_ACCURATE | |
398 | MT_QUIRK_SEPARATE_APP_REPORT, |
399 | }, |
400 | { } |
401 | }; |
402 | |
403 | static ssize_t mt_show_quirks(struct device *dev, |
404 | struct device_attribute *attr, |
405 | char *buf) |
406 | { |
407 | struct hid_device *hdev = to_hid_device(dev); |
408 | struct mt_device *td = hid_get_drvdata(hdev); |
409 | |
410 | return sprintf(buf, fmt: "%u\n" , td->mtclass.quirks); |
411 | } |
412 | |
413 | static ssize_t mt_set_quirks(struct device *dev, |
414 | struct device_attribute *attr, |
415 | const char *buf, size_t count) |
416 | { |
417 | struct hid_device *hdev = to_hid_device(dev); |
418 | struct mt_device *td = hid_get_drvdata(hdev); |
419 | struct mt_application *application; |
420 | |
421 | unsigned long val; |
422 | |
423 | if (kstrtoul(s: buf, base: 0, res: &val)) |
424 | return -EINVAL; |
425 | |
426 | td->mtclass.quirks = val; |
427 | |
428 | list_for_each_entry(application, &td->applications, list) { |
429 | application->quirks = val; |
430 | if (!application->have_contact_count) |
431 | application->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; |
432 | } |
433 | |
434 | return count; |
435 | } |
436 | |
437 | static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks); |
438 | |
439 | static struct attribute *sysfs_attrs[] = { |
440 | &dev_attr_quirks.attr, |
441 | NULL |
442 | }; |
443 | |
444 | static const struct attribute_group mt_attribute_group = { |
445 | .attrs = sysfs_attrs |
446 | }; |
447 | |
448 | static void mt_get_feature(struct hid_device *hdev, struct hid_report *report) |
449 | { |
450 | int ret; |
451 | u32 size = hid_report_len(report); |
452 | u8 *buf; |
453 | |
454 | /* |
455 | * Do not fetch the feature report if the device has been explicitly |
456 | * marked as non-capable. |
457 | */ |
458 | if (hdev->quirks & HID_QUIRK_NO_INIT_REPORTS) |
459 | return; |
460 | |
461 | buf = hid_alloc_report_buf(report, GFP_KERNEL); |
462 | if (!buf) |
463 | return; |
464 | |
465 | ret = hid_hw_raw_request(hdev, reportnum: report->id, buf, len: size, |
466 | rtype: HID_FEATURE_REPORT, reqtype: HID_REQ_GET_REPORT); |
467 | if (ret < 0) { |
468 | dev_warn(&hdev->dev, "failed to fetch feature %d\n" , |
469 | report->id); |
470 | } else { |
471 | ret = hid_report_raw_event(hid: hdev, type: HID_FEATURE_REPORT, data: buf, |
472 | size, interrupt: 0); |
473 | if (ret) |
474 | dev_warn(&hdev->dev, "failed to report feature\n" ); |
475 | } |
476 | |
477 | kfree(objp: buf); |
478 | } |
479 | |
480 | static void mt_feature_mapping(struct hid_device *hdev, |
481 | struct hid_field *field, struct hid_usage *usage) |
482 | { |
483 | struct mt_device *td = hid_get_drvdata(hdev); |
484 | |
485 | switch (usage->hid) { |
486 | case HID_DG_CONTACTMAX: |
487 | mt_get_feature(hdev, report: field->report); |
488 | |
489 | td->maxcontacts = field->value[0]; |
490 | if (!td->maxcontacts && |
491 | field->logical_maximum <= MT_MAX_MAXCONTACT) |
492 | td->maxcontacts = field->logical_maximum; |
493 | if (td->mtclass.maxcontacts) |
494 | /* check if the maxcontacts is given by the class */ |
495 | td->maxcontacts = td->mtclass.maxcontacts; |
496 | |
497 | break; |
498 | case HID_DG_BUTTONTYPE: |
499 | if (usage->usage_index >= field->report_count) { |
500 | dev_err(&hdev->dev, "HID_DG_BUTTONTYPE out of range\n" ); |
501 | break; |
502 | } |
503 | |
504 | mt_get_feature(hdev, report: field->report); |
505 | if (field->value[usage->usage_index] == MT_BUTTONTYPE_CLICKPAD) |
506 | td->is_buttonpad = true; |
507 | |
508 | break; |
509 | case 0xff0000c5: |
510 | /* Retrieve the Win8 blob once to enable some devices */ |
511 | if (usage->usage_index == 0) |
512 | mt_get_feature(hdev, report: field->report); |
513 | break; |
514 | } |
515 | } |
516 | |
517 | static void set_abs(struct input_dev *input, unsigned int code, |
518 | struct hid_field *field, int snratio) |
519 | { |
520 | int fmin = field->logical_minimum; |
521 | int fmax = field->logical_maximum; |
522 | int fuzz = snratio ? (fmax - fmin) / snratio : 0; |
523 | input_set_abs_params(dev: input, axis: code, min: fmin, max: fmax, fuzz, flat: 0); |
524 | input_abs_set_res(dev: input, axis: code, val: hidinput_calc_abs_res(field, code)); |
525 | } |
526 | |
527 | static struct mt_usages *mt_allocate_usage(struct hid_device *hdev, |
528 | struct mt_application *application) |
529 | { |
530 | struct mt_usages *usage; |
531 | |
532 | usage = devm_kzalloc(dev: &hdev->dev, size: sizeof(*usage), GFP_KERNEL); |
533 | if (!usage) |
534 | return NULL; |
535 | |
536 | /* set some defaults so we do not need to check for null pointers */ |
537 | usage->x = DEFAULT_ZERO; |
538 | usage->y = DEFAULT_ZERO; |
539 | usage->cx = DEFAULT_ZERO; |
540 | usage->cy = DEFAULT_ZERO; |
541 | usage->p = DEFAULT_ZERO; |
542 | usage->w = DEFAULT_ZERO; |
543 | usage->h = DEFAULT_ZERO; |
544 | usage->a = DEFAULT_ZERO; |
545 | usage->contactid = DEFAULT_ZERO; |
546 | usage->tip_state = DEFAULT_FALSE; |
547 | usage->inrange_state = DEFAULT_FALSE; |
548 | usage->confidence_state = DEFAULT_TRUE; |
549 | |
550 | list_add_tail(new: &usage->list, head: &application->mt_usages); |
551 | |
552 | return usage; |
553 | } |
554 | |
555 | static struct mt_application *mt_allocate_application(struct mt_device *td, |
556 | struct hid_report *report) |
557 | { |
558 | unsigned int application = report->application; |
559 | struct mt_application *mt_application; |
560 | |
561 | mt_application = devm_kzalloc(dev: &td->hdev->dev, size: sizeof(*mt_application), |
562 | GFP_KERNEL); |
563 | if (!mt_application) |
564 | return NULL; |
565 | |
566 | mt_application->application = application; |
567 | INIT_LIST_HEAD(list: &mt_application->mt_usages); |
568 | |
569 | if (application == HID_DG_TOUCHSCREEN) |
570 | mt_application->mt_flags |= INPUT_MT_DIRECT; |
571 | |
572 | /* |
573 | * Model touchscreens providing buttons as touchpads. |
574 | */ |
575 | if (application == HID_DG_TOUCHPAD) { |
576 | mt_application->mt_flags |= INPUT_MT_POINTER; |
577 | td->inputmode_value = MT_INPUTMODE_TOUCHPAD; |
578 | } |
579 | |
580 | mt_application->scantime = DEFAULT_ZERO; |
581 | mt_application->raw_cc = DEFAULT_ZERO; |
582 | mt_application->quirks = td->mtclass.quirks; |
583 | mt_application->report_id = report->id; |
584 | |
585 | list_add_tail(new: &mt_application->list, head: &td->applications); |
586 | |
587 | return mt_application; |
588 | } |
589 | |
590 | static struct mt_application *mt_find_application(struct mt_device *td, |
591 | struct hid_report *report) |
592 | { |
593 | unsigned int application = report->application; |
594 | struct mt_application *tmp, *mt_application = NULL; |
595 | |
596 | list_for_each_entry(tmp, &td->applications, list) { |
597 | if (application == tmp->application) { |
598 | if (!(td->mtclass.quirks & MT_QUIRK_SEPARATE_APP_REPORT) || |
599 | tmp->report_id == report->id) { |
600 | mt_application = tmp; |
601 | break; |
602 | } |
603 | } |
604 | } |
605 | |
606 | if (!mt_application) |
607 | mt_application = mt_allocate_application(td, report); |
608 | |
609 | return mt_application; |
610 | } |
611 | |
612 | static struct mt_report_data *mt_allocate_report_data(struct mt_device *td, |
613 | struct hid_report *report) |
614 | { |
615 | struct mt_report_data *rdata; |
616 | struct hid_field *field; |
617 | int r, n; |
618 | |
619 | rdata = devm_kzalloc(dev: &td->hdev->dev, size: sizeof(*rdata), GFP_KERNEL); |
620 | if (!rdata) |
621 | return NULL; |
622 | |
623 | rdata->report = report; |
624 | rdata->application = mt_find_application(td, report); |
625 | |
626 | if (!rdata->application) { |
627 | devm_kfree(dev: &td->hdev->dev, p: rdata); |
628 | return NULL; |
629 | } |
630 | |
631 | for (r = 0; r < report->maxfield; r++) { |
632 | field = report->field[r]; |
633 | |
634 | if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) |
635 | continue; |
636 | |
637 | if (field->logical == HID_DG_FINGER || td->hdev->group != HID_GROUP_MULTITOUCH_WIN_8) { |
638 | for (n = 0; n < field->report_count; n++) { |
639 | if (field->usage[n].hid == HID_DG_CONTACTID) { |
640 | rdata->is_mt_collection = true; |
641 | break; |
642 | } |
643 | } |
644 | } |
645 | } |
646 | |
647 | list_add_tail(new: &rdata->list, head: &td->reports); |
648 | |
649 | return rdata; |
650 | } |
651 | |
652 | static struct mt_report_data *mt_find_report_data(struct mt_device *td, |
653 | struct hid_report *report) |
654 | { |
655 | struct mt_report_data *tmp, *rdata = NULL; |
656 | |
657 | list_for_each_entry(tmp, &td->reports, list) { |
658 | if (report == tmp->report) { |
659 | rdata = tmp; |
660 | break; |
661 | } |
662 | } |
663 | |
664 | if (!rdata) |
665 | rdata = mt_allocate_report_data(td, report); |
666 | |
667 | return rdata; |
668 | } |
669 | |
670 | static void mt_store_field(struct hid_device *hdev, |
671 | struct mt_application *application, |
672 | __s32 *value, |
673 | size_t offset) |
674 | { |
675 | struct mt_usages *usage; |
676 | __s32 **target; |
677 | |
678 | if (list_empty(head: &application->mt_usages)) |
679 | usage = mt_allocate_usage(hdev, application); |
680 | else |
681 | usage = list_last_entry(&application->mt_usages, |
682 | struct mt_usages, |
683 | list); |
684 | |
685 | if (!usage) |
686 | return; |
687 | |
688 | target = (__s32 **)((char *)usage + offset); |
689 | |
690 | /* the value has already been filled, create a new slot */ |
691 | if (*target != DEFAULT_TRUE && |
692 | *target != DEFAULT_FALSE && |
693 | *target != DEFAULT_ZERO) { |
694 | if (usage->contactid == DEFAULT_ZERO || |
695 | usage->x == DEFAULT_ZERO || |
696 | usage->y == DEFAULT_ZERO) { |
697 | hid_dbg(hdev, |
698 | "ignoring duplicate usage on incomplete" ); |
699 | return; |
700 | } |
701 | usage = mt_allocate_usage(hdev, application); |
702 | if (!usage) |
703 | return; |
704 | |
705 | target = (__s32 **)((char *)usage + offset); |
706 | } |
707 | |
708 | *target = value; |
709 | } |
710 | |
711 | #define MT_STORE_FIELD(__name) \ |
712 | mt_store_field(hdev, app, \ |
713 | &field->value[usage->usage_index], \ |
714 | offsetof(struct mt_usages, __name)) |
715 | |
716 | static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi, |
717 | struct hid_field *field, struct hid_usage *usage, |
718 | unsigned long **bit, int *max, struct mt_application *app) |
719 | { |
720 | struct mt_device *td = hid_get_drvdata(hdev); |
721 | struct mt_class *cls = &td->mtclass; |
722 | int code; |
723 | struct hid_usage *prev_usage = NULL; |
724 | |
725 | /* |
726 | * Model touchscreens providing buttons as touchpads. |
727 | */ |
728 | if (field->application == HID_DG_TOUCHSCREEN && |
729 | (usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) { |
730 | app->mt_flags |= INPUT_MT_POINTER; |
731 | td->inputmode_value = MT_INPUTMODE_TOUCHPAD; |
732 | } |
733 | |
734 | /* count the buttons on touchpads */ |
735 | if ((usage->hid & HID_USAGE_PAGE) == HID_UP_BUTTON) |
736 | app->buttons_count++; |
737 | |
738 | if (usage->usage_index) |
739 | prev_usage = &field->usage[usage->usage_index - 1]; |
740 | |
741 | switch (usage->hid & HID_USAGE_PAGE) { |
742 | |
743 | case HID_UP_GENDESK: |
744 | switch (usage->hid) { |
745 | case HID_GD_X: |
746 | if (prev_usage && (prev_usage->hid == usage->hid)) { |
747 | code = ABS_MT_TOOL_X; |
748 | MT_STORE_FIELD(cx); |
749 | } else { |
750 | code = ABS_MT_POSITION_X; |
751 | MT_STORE_FIELD(x); |
752 | } |
753 | |
754 | set_abs(input: hi->input, code, field, snratio: cls->sn_move); |
755 | |
756 | /* |
757 | * A system multi-axis that exports X and Y has a high |
758 | * chance of being used directly on a surface |
759 | */ |
760 | if (field->application == HID_GD_SYSTEM_MULTIAXIS) { |
761 | __set_bit(INPUT_PROP_DIRECT, |
762 | hi->input->propbit); |
763 | input_set_abs_params(dev: hi->input, |
764 | ABS_MT_TOOL_TYPE, |
765 | MT_TOOL_DIAL, |
766 | MT_TOOL_DIAL, fuzz: 0, flat: 0); |
767 | } |
768 | |
769 | return 1; |
770 | case HID_GD_Y: |
771 | if (prev_usage && (prev_usage->hid == usage->hid)) { |
772 | code = ABS_MT_TOOL_Y; |
773 | MT_STORE_FIELD(cy); |
774 | } else { |
775 | code = ABS_MT_POSITION_Y; |
776 | MT_STORE_FIELD(y); |
777 | } |
778 | |
779 | set_abs(input: hi->input, code, field, snratio: cls->sn_move); |
780 | |
781 | return 1; |
782 | } |
783 | return 0; |
784 | |
785 | case HID_UP_DIGITIZER: |
786 | switch (usage->hid) { |
787 | case HID_DG_INRANGE: |
788 | if (app->quirks & MT_QUIRK_HOVERING) { |
789 | input_set_abs_params(dev: hi->input, |
790 | ABS_MT_DISTANCE, min: 0, max: 1, fuzz: 0, flat: 0); |
791 | } |
792 | MT_STORE_FIELD(inrange_state); |
793 | return 1; |
794 | case HID_DG_CONFIDENCE: |
795 | if ((cls->name == MT_CLS_WIN_8 || |
796 | cls->name == MT_CLS_WIN_8_FORCE_MULTI_INPUT || |
797 | cls->name == MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU || |
798 | cls->name == MT_CLS_WIN_8_DISABLE_WAKEUP) && |
799 | (field->application == HID_DG_TOUCHPAD || |
800 | field->application == HID_DG_TOUCHSCREEN)) |
801 | app->quirks |= MT_QUIRK_CONFIDENCE; |
802 | |
803 | if (app->quirks & MT_QUIRK_CONFIDENCE) |
804 | input_set_abs_params(dev: hi->input, |
805 | ABS_MT_TOOL_TYPE, |
806 | MT_TOOL_FINGER, |
807 | MT_TOOL_PALM, fuzz: 0, flat: 0); |
808 | |
809 | MT_STORE_FIELD(confidence_state); |
810 | return 1; |
811 | case HID_DG_TIPSWITCH: |
812 | if (field->application != HID_GD_SYSTEM_MULTIAXIS) |
813 | input_set_capability(dev: hi->input, |
814 | EV_KEY, BTN_TOUCH); |
815 | MT_STORE_FIELD(tip_state); |
816 | return 1; |
817 | case HID_DG_CONTACTID: |
818 | MT_STORE_FIELD(contactid); |
819 | app->touches_by_report++; |
820 | return 1; |
821 | case HID_DG_WIDTH: |
822 | if (!(app->quirks & MT_QUIRK_NO_AREA)) |
823 | set_abs(input: hi->input, ABS_MT_TOUCH_MAJOR, field, |
824 | snratio: cls->sn_width); |
825 | MT_STORE_FIELD(w); |
826 | return 1; |
827 | case HID_DG_HEIGHT: |
828 | if (!(app->quirks & MT_QUIRK_NO_AREA)) { |
829 | set_abs(input: hi->input, ABS_MT_TOUCH_MINOR, field, |
830 | snratio: cls->sn_height); |
831 | |
832 | /* |
833 | * Only set ABS_MT_ORIENTATION if it is not |
834 | * already set by the HID_DG_AZIMUTH usage. |
835 | */ |
836 | if (!test_bit(ABS_MT_ORIENTATION, |
837 | hi->input->absbit)) |
838 | input_set_abs_params(dev: hi->input, |
839 | ABS_MT_ORIENTATION, min: 0, max: 1, fuzz: 0, flat: 0); |
840 | } |
841 | MT_STORE_FIELD(h); |
842 | return 1; |
843 | case HID_DG_TIPPRESSURE: |
844 | set_abs(input: hi->input, ABS_MT_PRESSURE, field, |
845 | snratio: cls->sn_pressure); |
846 | MT_STORE_FIELD(p); |
847 | return 1; |
848 | case HID_DG_SCANTIME: |
849 | input_set_capability(dev: hi->input, EV_MSC, MSC_TIMESTAMP); |
850 | app->scantime = &field->value[usage->usage_index]; |
851 | app->scantime_logical_max = field->logical_maximum; |
852 | return 1; |
853 | case HID_DG_CONTACTCOUNT: |
854 | app->have_contact_count = true; |
855 | app->raw_cc = &field->value[usage->usage_index]; |
856 | return 1; |
857 | case HID_DG_AZIMUTH: |
858 | /* |
859 | * Azimuth has the range of [0, MAX) representing a full |
860 | * revolution. Set ABS_MT_ORIENTATION to a quarter of |
861 | * MAX according the definition of ABS_MT_ORIENTATION |
862 | */ |
863 | input_set_abs_params(dev: hi->input, ABS_MT_ORIENTATION, |
864 | min: -field->logical_maximum / 4, |
865 | max: field->logical_maximum / 4, |
866 | fuzz: cls->sn_move ? |
867 | field->logical_maximum / cls->sn_move : 0, flat: 0); |
868 | MT_STORE_FIELD(a); |
869 | return 1; |
870 | case HID_DG_CONTACTMAX: |
871 | /* contact max are global to the report */ |
872 | return -1; |
873 | case HID_DG_TOUCH: |
874 | /* Legacy devices use TIPSWITCH and not TOUCH. |
875 | * Let's just ignore this field. */ |
876 | return -1; |
877 | } |
878 | /* let hid-input decide for the others */ |
879 | return 0; |
880 | |
881 | case HID_UP_BUTTON: |
882 | code = BTN_MOUSE + ((usage->hid - 1) & HID_USAGE); |
883 | /* |
884 | * MS PTP spec says that external buttons left and right have |
885 | * usages 2 and 3. |
886 | */ |
887 | if ((app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) && |
888 | field->application == HID_DG_TOUCHPAD && |
889 | (usage->hid & HID_USAGE) > 1) |
890 | code--; |
891 | |
892 | if (field->application == HID_GD_SYSTEM_MULTIAXIS) |
893 | code = BTN_0 + ((usage->hid - 1) & HID_USAGE); |
894 | |
895 | hid_map_usage(hidinput: hi, usage, bit, max, EV_KEY, c: code); |
896 | if (!*bit) |
897 | return -1; |
898 | input_set_capability(dev: hi->input, EV_KEY, code); |
899 | return 1; |
900 | |
901 | case 0xff000000: |
902 | /* we do not want to map these: no input-oriented meaning */ |
903 | return -1; |
904 | } |
905 | |
906 | return 0; |
907 | } |
908 | |
909 | static int mt_compute_slot(struct mt_device *td, struct mt_application *app, |
910 | struct mt_usages *slot, |
911 | struct input_dev *input) |
912 | { |
913 | __s32 quirks = app->quirks; |
914 | |
915 | if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) |
916 | return *slot->contactid; |
917 | |
918 | if (quirks & MT_QUIRK_CYPRESS) |
919 | return cypress_compute_slot(application: app, slot); |
920 | |
921 | if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) |
922 | return app->num_received; |
923 | |
924 | if (quirks & MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE) |
925 | return *slot->contactid - 1; |
926 | |
927 | return input_mt_get_slot_by_key(dev: input, key: *slot->contactid); |
928 | } |
929 | |
930 | static void mt_release_pending_palms(struct mt_device *td, |
931 | struct mt_application *app, |
932 | struct input_dev *input) |
933 | { |
934 | int slotnum; |
935 | bool need_sync = false; |
936 | |
937 | for_each_set_bit(slotnum, app->pending_palm_slots, td->maxcontacts) { |
938 | clear_bit(nr: slotnum, addr: app->pending_palm_slots); |
939 | |
940 | input_mt_slot(dev: input, slot: slotnum); |
941 | input_mt_report_slot_inactive(dev: input); |
942 | |
943 | need_sync = true; |
944 | } |
945 | |
946 | if (need_sync) { |
947 | input_mt_sync_frame(dev: input); |
948 | input_sync(dev: input); |
949 | } |
950 | } |
951 | |
952 | /* |
953 | * this function is called when a whole packet has been received and processed, |
954 | * so that it can decide what to send to the input layer. |
955 | */ |
956 | static void mt_sync_frame(struct mt_device *td, struct mt_application *app, |
957 | struct input_dev *input) |
958 | { |
959 | if (app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) |
960 | input_event(dev: input, EV_KEY, BTN_LEFT, value: app->left_button_state); |
961 | |
962 | input_mt_sync_frame(dev: input); |
963 | input_event(dev: input, EV_MSC, MSC_TIMESTAMP, value: app->timestamp); |
964 | input_sync(dev: input); |
965 | |
966 | mt_release_pending_palms(td, app, input); |
967 | |
968 | app->num_received = 0; |
969 | app->left_button_state = 0; |
970 | |
971 | if (test_bit(MT_IO_FLAGS_ACTIVE_SLOTS, &td->mt_io_flags)) |
972 | set_bit(MT_IO_FLAGS_PENDING_SLOTS, addr: &td->mt_io_flags); |
973 | else |
974 | clear_bit(MT_IO_FLAGS_PENDING_SLOTS, addr: &td->mt_io_flags); |
975 | clear_bit(MT_IO_FLAGS_ACTIVE_SLOTS, addr: &td->mt_io_flags); |
976 | } |
977 | |
978 | static int mt_compute_timestamp(struct mt_application *app, __s32 value) |
979 | { |
980 | long delta = value - app->prev_scantime; |
981 | unsigned long jdelta = jiffies_to_usecs(j: jiffies - app->jiffies); |
982 | |
983 | app->jiffies = jiffies; |
984 | |
985 | if (delta < 0) |
986 | delta += app->scantime_logical_max; |
987 | |
988 | /* HID_DG_SCANTIME is expressed in 100us, we want it in us. */ |
989 | delta *= 100; |
990 | |
991 | if (jdelta > MAX_TIMESTAMP_INTERVAL) |
992 | /* No data received for a while, resync the timestamp. */ |
993 | return 0; |
994 | else |
995 | return app->timestamp + delta; |
996 | } |
997 | |
998 | static int mt_touch_event(struct hid_device *hid, struct hid_field *field, |
999 | struct hid_usage *usage, __s32 value) |
1000 | { |
1001 | /* we will handle the hidinput part later, now remains hiddev */ |
1002 | if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) |
1003 | hid->hiddev_hid_event(hid, field, usage, value); |
1004 | |
1005 | return 1; |
1006 | } |
1007 | |
1008 | static int mt_process_slot(struct mt_device *td, struct input_dev *input, |
1009 | struct mt_application *app, |
1010 | struct mt_usages *slot) |
1011 | { |
1012 | struct input_mt *mt = input->mt; |
1013 | struct hid_device *hdev = td->hdev; |
1014 | __s32 quirks = app->quirks; |
1015 | bool valid = true; |
1016 | bool confidence_state = true; |
1017 | bool inrange_state = false; |
1018 | int active; |
1019 | int slotnum; |
1020 | int tool = MT_TOOL_FINGER; |
1021 | |
1022 | if (!slot) |
1023 | return -EINVAL; |
1024 | |
1025 | if ((quirks & MT_QUIRK_CONTACT_CNT_ACCURATE) && |
1026 | app->num_received >= app->num_expected) |
1027 | return -EAGAIN; |
1028 | |
1029 | if (!(quirks & MT_QUIRK_ALWAYS_VALID)) { |
1030 | if (quirks & MT_QUIRK_VALID_IS_INRANGE) |
1031 | valid = *slot->inrange_state; |
1032 | if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) |
1033 | valid = *slot->tip_state; |
1034 | if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) |
1035 | valid = *slot->confidence_state; |
1036 | |
1037 | if (!valid) |
1038 | return 0; |
1039 | } |
1040 | |
1041 | slotnum = mt_compute_slot(td, app, slot, input); |
1042 | if (slotnum < 0 || slotnum >= td->maxcontacts) |
1043 | return 0; |
1044 | |
1045 | if ((quirks & MT_QUIRK_IGNORE_DUPLICATES) && mt) { |
1046 | struct input_mt_slot *i_slot = &mt->slots[slotnum]; |
1047 | |
1048 | if (input_mt_is_active(slot: i_slot) && |
1049 | input_mt_is_used(mt, slot: i_slot)) |
1050 | return -EAGAIN; |
1051 | } |
1052 | |
1053 | if (quirks & MT_QUIRK_CONFIDENCE) |
1054 | confidence_state = *slot->confidence_state; |
1055 | |
1056 | if (quirks & MT_QUIRK_HOVERING) |
1057 | inrange_state = *slot->inrange_state; |
1058 | |
1059 | active = *slot->tip_state || inrange_state; |
1060 | |
1061 | if (app->application == HID_GD_SYSTEM_MULTIAXIS) |
1062 | tool = MT_TOOL_DIAL; |
1063 | else if (unlikely(!confidence_state)) { |
1064 | tool = MT_TOOL_PALM; |
1065 | if (!active && mt && |
1066 | input_mt_is_active(slot: &mt->slots[slotnum])) { |
1067 | /* |
1068 | * The non-confidence was reported for |
1069 | * previously valid contact that is also no |
1070 | * longer valid. We can't simply report |
1071 | * lift-off as userspace will not be aware |
1072 | * of non-confidence, so we need to split |
1073 | * it into 2 events: active MT_TOOL_PALM |
1074 | * and a separate liftoff. |
1075 | */ |
1076 | active = true; |
1077 | set_bit(nr: slotnum, addr: app->pending_palm_slots); |
1078 | } |
1079 | } |
1080 | |
1081 | input_mt_slot(dev: input, slot: slotnum); |
1082 | input_mt_report_slot_state(dev: input, tool_type: tool, active); |
1083 | if (active) { |
1084 | /* this finger is in proximity of the sensor */ |
1085 | int wide = (*slot->w > *slot->h); |
1086 | int major = max(*slot->w, *slot->h); |
1087 | int minor = min(*slot->w, *slot->h); |
1088 | int orientation = wide; |
1089 | int max_azimuth; |
1090 | int azimuth; |
1091 | int x; |
1092 | int y; |
1093 | int cx; |
1094 | int cy; |
1095 | |
1096 | if (slot->a != DEFAULT_ZERO) { |
1097 | /* |
1098 | * Azimuth is counter-clockwise and ranges from [0, MAX) |
1099 | * (a full revolution). Convert it to clockwise ranging |
1100 | * [-MAX/2, MAX/2]. |
1101 | * |
1102 | * Note that ABS_MT_ORIENTATION require us to report |
1103 | * the limit of [-MAX/4, MAX/4], but the value can go |
1104 | * out of range to [-MAX/2, MAX/2] to report an upside |
1105 | * down ellipsis. |
1106 | */ |
1107 | azimuth = *slot->a; |
1108 | max_azimuth = input_abs_get_max(dev: input, |
1109 | ABS_MT_ORIENTATION); |
1110 | if (azimuth > max_azimuth * 2) |
1111 | azimuth -= max_azimuth * 4; |
1112 | orientation = -azimuth; |
1113 | if (quirks & MT_QUIRK_ORIENTATION_INVERT) |
1114 | orientation = -orientation; |
1115 | |
1116 | } |
1117 | |
1118 | if (quirks & MT_QUIRK_TOUCH_SIZE_SCALING) { |
1119 | /* |
1120 | * divided by two to match visual scale of touch |
1121 | * for devices with this quirk |
1122 | */ |
1123 | major = major >> 1; |
1124 | minor = minor >> 1; |
1125 | } |
1126 | |
1127 | x = hdev->quirks & HID_QUIRK_X_INVERT ? |
1128 | input_abs_get_max(dev: input, ABS_MT_POSITION_X) - *slot->x : |
1129 | *slot->x; |
1130 | y = hdev->quirks & HID_QUIRK_Y_INVERT ? |
1131 | input_abs_get_max(dev: input, ABS_MT_POSITION_Y) - *slot->y : |
1132 | *slot->y; |
1133 | cx = hdev->quirks & HID_QUIRK_X_INVERT ? |
1134 | input_abs_get_max(dev: input, ABS_MT_POSITION_X) - *slot->cx : |
1135 | *slot->cx; |
1136 | cy = hdev->quirks & HID_QUIRK_Y_INVERT ? |
1137 | input_abs_get_max(dev: input, ABS_MT_POSITION_Y) - *slot->cy : |
1138 | *slot->cy; |
1139 | |
1140 | input_event(dev: input, EV_ABS, ABS_MT_POSITION_X, value: x); |
1141 | input_event(dev: input, EV_ABS, ABS_MT_POSITION_Y, value: y); |
1142 | input_event(dev: input, EV_ABS, ABS_MT_TOOL_X, value: cx); |
1143 | input_event(dev: input, EV_ABS, ABS_MT_TOOL_Y, value: cy); |
1144 | input_event(dev: input, EV_ABS, ABS_MT_DISTANCE, value: !*slot->tip_state); |
1145 | input_event(dev: input, EV_ABS, ABS_MT_ORIENTATION, value: orientation); |
1146 | input_event(dev: input, EV_ABS, ABS_MT_PRESSURE, value: *slot->p); |
1147 | input_event(dev: input, EV_ABS, ABS_MT_TOUCH_MAJOR, value: major); |
1148 | input_event(dev: input, EV_ABS, ABS_MT_TOUCH_MINOR, value: minor); |
1149 | |
1150 | set_bit(MT_IO_FLAGS_ACTIVE_SLOTS, addr: &td->mt_io_flags); |
1151 | } |
1152 | |
1153 | return 0; |
1154 | } |
1155 | |
1156 | static void mt_process_mt_event(struct hid_device *hid, |
1157 | struct mt_application *app, |
1158 | struct hid_field *field, |
1159 | struct hid_usage *usage, |
1160 | __s32 value, |
1161 | bool first_packet) |
1162 | { |
1163 | __s32 quirks = app->quirks; |
1164 | struct input_dev *input = field->hidinput->input; |
1165 | |
1166 | if (!usage->type || !(hid->claimed & HID_CLAIMED_INPUT)) |
1167 | return; |
1168 | |
1169 | if (quirks & MT_QUIRK_WIN8_PTP_BUTTONS) { |
1170 | |
1171 | /* |
1172 | * For Win8 PTP touchpads we should only look at |
1173 | * non finger/touch events in the first_packet of a |
1174 | * (possible) multi-packet frame. |
1175 | */ |
1176 | if (!first_packet) |
1177 | return; |
1178 | |
1179 | /* |
1180 | * For Win8 PTP touchpads we map both the clickpad click |
1181 | * and any "external" left buttons to BTN_LEFT if a |
1182 | * device claims to have both we need to report 1 for |
1183 | * BTN_LEFT if either is pressed, so we or all values |
1184 | * together and report the result in mt_sync_frame(). |
1185 | */ |
1186 | if (usage->type == EV_KEY && usage->code == BTN_LEFT) { |
1187 | app->left_button_state |= value; |
1188 | return; |
1189 | } |
1190 | } |
1191 | |
1192 | input_event(dev: input, type: usage->type, code: usage->code, value); |
1193 | } |
1194 | |
1195 | static void mt_touch_report(struct hid_device *hid, |
1196 | struct mt_report_data *rdata) |
1197 | { |
1198 | struct mt_device *td = hid_get_drvdata(hdev: hid); |
1199 | struct hid_report *report = rdata->report; |
1200 | struct mt_application *app = rdata->application; |
1201 | struct hid_field *field; |
1202 | struct input_dev *input; |
1203 | struct mt_usages *slot; |
1204 | bool first_packet; |
1205 | unsigned count; |
1206 | int r, n; |
1207 | int scantime = 0; |
1208 | int contact_count = -1; |
1209 | |
1210 | /* sticky fingers release in progress, abort */ |
1211 | if (test_and_set_bit_lock(MT_IO_FLAGS_RUNNING, addr: &td->mt_io_flags)) |
1212 | return; |
1213 | |
1214 | scantime = *app->scantime; |
1215 | app->timestamp = mt_compute_timestamp(app, value: scantime); |
1216 | if (app->raw_cc != DEFAULT_ZERO) |
1217 | contact_count = *app->raw_cc; |
1218 | |
1219 | /* |
1220 | * Includes multi-packet support where subsequent |
1221 | * packets are sent with zero contactcount. |
1222 | */ |
1223 | if (contact_count >= 0) { |
1224 | /* |
1225 | * For Win8 PTPs the first packet (td->num_received == 0) may |
1226 | * have a contactcount of 0 if there only is a button event. |
1227 | * We double check that this is not a continuation packet |
1228 | * of a possible multi-packet frame be checking that the |
1229 | * timestamp has changed. |
1230 | */ |
1231 | if ((app->quirks & MT_QUIRK_WIN8_PTP_BUTTONS) && |
1232 | app->num_received == 0 && |
1233 | app->prev_scantime != scantime) |
1234 | app->num_expected = contact_count; |
1235 | /* A non 0 contact count always indicates a first packet */ |
1236 | else if (contact_count) |
1237 | app->num_expected = contact_count; |
1238 | } |
1239 | app->prev_scantime = scantime; |
1240 | |
1241 | first_packet = app->num_received == 0; |
1242 | |
1243 | input = report->field[0]->hidinput->input; |
1244 | |
1245 | list_for_each_entry(slot, &app->mt_usages, list) { |
1246 | if (!mt_process_slot(td, input, app, slot)) |
1247 | app->num_received++; |
1248 | } |
1249 | |
1250 | for (r = 0; r < report->maxfield; r++) { |
1251 | field = report->field[r]; |
1252 | count = field->report_count; |
1253 | |
1254 | if (!(HID_MAIN_ITEM_VARIABLE & field->flags)) |
1255 | continue; |
1256 | |
1257 | for (n = 0; n < count; n++) |
1258 | mt_process_mt_event(hid, app, field, |
1259 | usage: &field->usage[n], value: field->value[n], |
1260 | first_packet); |
1261 | } |
1262 | |
1263 | if (app->num_received >= app->num_expected) |
1264 | mt_sync_frame(td, app, input); |
1265 | |
1266 | /* |
1267 | * Windows 8 specs says 2 things: |
1268 | * - once a contact has been reported, it has to be reported in each |
1269 | * subsequent report |
1270 | * - the report rate when fingers are present has to be at least |
1271 | * the refresh rate of the screen, 60 or 120 Hz |
1272 | * |
1273 | * I interprete this that the specification forces a report rate of |
1274 | * at least 60 Hz for a touchscreen to be certified. |
1275 | * Which means that if we do not get a report whithin 16 ms, either |
1276 | * something wrong happens, either the touchscreen forgets to send |
1277 | * a release. Taking a reasonable margin allows to remove issues |
1278 | * with USB communication or the load of the machine. |
1279 | * |
1280 | * Given that Win 8 devices are forced to send a release, this will |
1281 | * only affect laggish machines and the ones that have a firmware |
1282 | * defect. |
1283 | */ |
1284 | if (app->quirks & MT_QUIRK_STICKY_FINGERS) { |
1285 | if (test_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags)) |
1286 | mod_timer(timer: &td->release_timer, |
1287 | expires: jiffies + msecs_to_jiffies(m: 100)); |
1288 | else |
1289 | del_timer(timer: &td->release_timer); |
1290 | } |
1291 | |
1292 | clear_bit_unlock(MT_IO_FLAGS_RUNNING, addr: &td->mt_io_flags); |
1293 | } |
1294 | |
1295 | static int mt_touch_input_configured(struct hid_device *hdev, |
1296 | struct hid_input *hi, |
1297 | struct mt_application *app) |
1298 | { |
1299 | struct mt_device *td = hid_get_drvdata(hdev); |
1300 | struct mt_class *cls = &td->mtclass; |
1301 | struct input_dev *input = hi->input; |
1302 | int ret; |
1303 | |
1304 | if (!td->maxcontacts) |
1305 | td->maxcontacts = MT_DEFAULT_MAXCONTACT; |
1306 | |
1307 | mt_post_parse(td, app); |
1308 | if (td->serial_maybe) |
1309 | mt_post_parse_default_settings(td, app); |
1310 | |
1311 | if (cls->is_indirect) |
1312 | app->mt_flags |= INPUT_MT_POINTER; |
1313 | |
1314 | if (app->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) |
1315 | app->mt_flags |= INPUT_MT_DROP_UNUSED; |
1316 | |
1317 | /* check for clickpads */ |
1318 | if ((app->mt_flags & INPUT_MT_POINTER) && |
1319 | (app->buttons_count == 1)) |
1320 | td->is_buttonpad = true; |
1321 | |
1322 | if (td->is_buttonpad) |
1323 | __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); |
1324 | |
1325 | app->pending_palm_slots = devm_kcalloc(dev: &hi->input->dev, |
1326 | BITS_TO_LONGS(td->maxcontacts), |
1327 | size: sizeof(long), |
1328 | GFP_KERNEL); |
1329 | if (!app->pending_palm_slots) |
1330 | return -ENOMEM; |
1331 | |
1332 | ret = input_mt_init_slots(dev: input, num_slots: td->maxcontacts, flags: app->mt_flags); |
1333 | if (ret) |
1334 | return ret; |
1335 | |
1336 | app->mt_flags = 0; |
1337 | return 0; |
1338 | } |
1339 | |
1340 | #define mt_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \ |
1341 | max, EV_KEY, (c)) |
1342 | static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, |
1343 | struct hid_field *field, struct hid_usage *usage, |
1344 | unsigned long **bit, int *max) |
1345 | { |
1346 | struct mt_device *td = hid_get_drvdata(hdev); |
1347 | struct mt_application *application; |
1348 | struct mt_report_data *rdata; |
1349 | |
1350 | rdata = mt_find_report_data(td, report: field->report); |
1351 | if (!rdata) { |
1352 | hid_err(hdev, "failed to allocate data for report\n" ); |
1353 | return 0; |
1354 | } |
1355 | |
1356 | application = rdata->application; |
1357 | |
1358 | /* |
1359 | * If mtclass.export_all_inputs is not set, only map fields from |
1360 | * TouchScreen or TouchPad collections. We need to ignore fields |
1361 | * that belong to other collections such as Mouse that might have |
1362 | * the same GenericDesktop usages. |
1363 | */ |
1364 | if (!td->mtclass.export_all_inputs && |
1365 | field->application != HID_DG_TOUCHSCREEN && |
1366 | field->application != HID_DG_PEN && |
1367 | field->application != HID_DG_TOUCHPAD && |
1368 | field->application != HID_GD_KEYBOARD && |
1369 | field->application != HID_GD_SYSTEM_CONTROL && |
1370 | field->application != HID_CP_CONSUMER_CONTROL && |
1371 | field->application != HID_GD_WIRELESS_RADIO_CTLS && |
1372 | field->application != HID_GD_SYSTEM_MULTIAXIS && |
1373 | !(field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS && |
1374 | application->quirks & MT_QUIRK_ASUS_CUSTOM_UP)) |
1375 | return -1; |
1376 | |
1377 | /* |
1378 | * Some Asus keyboard+touchpad devices have the hotkeys defined in the |
1379 | * touchpad report descriptor. We need to treat these as an array to |
1380 | * map usages to input keys. |
1381 | */ |
1382 | if (field->application == HID_VD_ASUS_CUSTOM_MEDIA_KEYS && |
1383 | application->quirks & MT_QUIRK_ASUS_CUSTOM_UP && |
1384 | (usage->hid & HID_USAGE_PAGE) == HID_UP_CUSTOM) { |
1385 | set_bit(EV_REP, addr: hi->input->evbit); |
1386 | if (field->flags & HID_MAIN_ITEM_VARIABLE) |
1387 | field->flags &= ~HID_MAIN_ITEM_VARIABLE; |
1388 | switch (usage->hid & HID_USAGE) { |
1389 | case 0x10: mt_map_key_clear(KEY_BRIGHTNESSDOWN); break; |
1390 | case 0x20: mt_map_key_clear(KEY_BRIGHTNESSUP); break; |
1391 | case 0x35: mt_map_key_clear(KEY_DISPLAY_OFF); break; |
1392 | case 0x6b: mt_map_key_clear(KEY_F21); break; |
1393 | case 0x6c: mt_map_key_clear(KEY_SLEEP); break; |
1394 | default: |
1395 | return -1; |
1396 | } |
1397 | return 1; |
1398 | } |
1399 | |
1400 | if (rdata->is_mt_collection) |
1401 | return mt_touch_input_mapping(hdev, hi, field, usage, bit, max, |
1402 | app: application); |
1403 | |
1404 | /* |
1405 | * some egalax touchscreens have "application == DG_TOUCHSCREEN" |
1406 | * for the stylus. Overwrite the hid_input application |
1407 | */ |
1408 | if (field->physical == HID_DG_STYLUS) |
1409 | hi->application = HID_DG_STYLUS; |
1410 | |
1411 | /* let hid-core decide for the others */ |
1412 | return 0; |
1413 | } |
1414 | |
1415 | static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, |
1416 | struct hid_field *field, struct hid_usage *usage, |
1417 | unsigned long **bit, int *max) |
1418 | { |
1419 | struct mt_device *td = hid_get_drvdata(hdev); |
1420 | struct mt_report_data *rdata; |
1421 | |
1422 | rdata = mt_find_report_data(td, report: field->report); |
1423 | if (rdata && rdata->is_mt_collection) { |
1424 | /* We own these mappings, tell hid-input to ignore them */ |
1425 | return -1; |
1426 | } |
1427 | |
1428 | /* let hid-core decide for the others */ |
1429 | return 0; |
1430 | } |
1431 | |
1432 | static int mt_event(struct hid_device *hid, struct hid_field *field, |
1433 | struct hid_usage *usage, __s32 value) |
1434 | { |
1435 | struct mt_device *td = hid_get_drvdata(hdev: hid); |
1436 | struct mt_report_data *rdata; |
1437 | |
1438 | rdata = mt_find_report_data(td, report: field->report); |
1439 | if (rdata && rdata->is_mt_collection) |
1440 | return mt_touch_event(hid, field, usage, value); |
1441 | |
1442 | return 0; |
1443 | } |
1444 | |
1445 | static void mt_report(struct hid_device *hid, struct hid_report *report) |
1446 | { |
1447 | struct mt_device *td = hid_get_drvdata(hdev: hid); |
1448 | struct hid_field *field = report->field[0]; |
1449 | struct mt_report_data *rdata; |
1450 | |
1451 | if (!(hid->claimed & HID_CLAIMED_INPUT)) |
1452 | return; |
1453 | |
1454 | rdata = mt_find_report_data(td, report); |
1455 | if (rdata && rdata->is_mt_collection) |
1456 | return mt_touch_report(hid, rdata); |
1457 | |
1458 | if (field && field->hidinput && field->hidinput->input) |
1459 | input_sync(dev: field->hidinput->input); |
1460 | } |
1461 | |
1462 | static bool mt_need_to_apply_feature(struct hid_device *hdev, |
1463 | struct hid_field *field, |
1464 | struct hid_usage *usage, |
1465 | enum latency_mode latency, |
1466 | bool surface_switch, |
1467 | bool button_switch, |
1468 | bool *inputmode_found) |
1469 | { |
1470 | struct mt_device *td = hid_get_drvdata(hdev); |
1471 | struct mt_class *cls = &td->mtclass; |
1472 | struct hid_report *report = field->report; |
1473 | unsigned int index = usage->usage_index; |
1474 | char *buf; |
1475 | u32 report_len; |
1476 | int max; |
1477 | |
1478 | switch (usage->hid) { |
1479 | case HID_DG_INPUTMODE: |
1480 | /* |
1481 | * Some elan panels wrongly declare 2 input mode features, |
1482 | * and silently ignore when we set the value in the second |
1483 | * field. Skip the second feature and hope for the best. |
1484 | */ |
1485 | if (*inputmode_found) |
1486 | return false; |
1487 | |
1488 | if (cls->quirks & MT_QUIRK_FORCE_GET_FEATURE) { |
1489 | report_len = hid_report_len(report); |
1490 | buf = hid_alloc_report_buf(report, GFP_KERNEL); |
1491 | if (!buf) { |
1492 | hid_err(hdev, |
1493 | "failed to allocate buffer for report\n" ); |
1494 | return false; |
1495 | } |
1496 | hid_hw_raw_request(hdev, reportnum: report->id, buf, len: report_len, |
1497 | rtype: HID_FEATURE_REPORT, |
1498 | reqtype: HID_REQ_GET_REPORT); |
1499 | kfree(objp: buf); |
1500 | } |
1501 | |
1502 | field->value[index] = td->inputmode_value; |
1503 | *inputmode_found = true; |
1504 | return true; |
1505 | |
1506 | case HID_DG_CONTACTMAX: |
1507 | if (cls->maxcontacts) { |
1508 | max = min_t(int, field->logical_maximum, |
1509 | cls->maxcontacts); |
1510 | if (field->value[index] != max) { |
1511 | field->value[index] = max; |
1512 | return true; |
1513 | } |
1514 | } |
1515 | break; |
1516 | |
1517 | case HID_DG_LATENCYMODE: |
1518 | field->value[index] = latency; |
1519 | return true; |
1520 | |
1521 | case HID_DG_SURFACESWITCH: |
1522 | field->value[index] = surface_switch; |
1523 | return true; |
1524 | |
1525 | case HID_DG_BUTTONSWITCH: |
1526 | field->value[index] = button_switch; |
1527 | return true; |
1528 | } |
1529 | |
1530 | return false; /* no need to update the report */ |
1531 | } |
1532 | |
1533 | static void mt_set_modes(struct hid_device *hdev, enum latency_mode latency, |
1534 | bool surface_switch, bool button_switch) |
1535 | { |
1536 | struct hid_report_enum *rep_enum; |
1537 | struct hid_report *rep; |
1538 | struct hid_usage *usage; |
1539 | int i, j; |
1540 | bool update_report; |
1541 | bool inputmode_found = false; |
1542 | |
1543 | rep_enum = &hdev->report_enum[HID_FEATURE_REPORT]; |
1544 | list_for_each_entry(rep, &rep_enum->report_list, list) { |
1545 | update_report = false; |
1546 | |
1547 | for (i = 0; i < rep->maxfield; i++) { |
1548 | /* Ignore if report count is out of bounds. */ |
1549 | if (rep->field[i]->report_count < 1) |
1550 | continue; |
1551 | |
1552 | for (j = 0; j < rep->field[i]->maxusage; j++) { |
1553 | usage = &rep->field[i]->usage[j]; |
1554 | |
1555 | if (mt_need_to_apply_feature(hdev, |
1556 | field: rep->field[i], |
1557 | usage, |
1558 | latency, |
1559 | surface_switch, |
1560 | button_switch, |
1561 | inputmode_found: &inputmode_found)) |
1562 | update_report = true; |
1563 | } |
1564 | } |
1565 | |
1566 | if (update_report) |
1567 | hid_hw_request(hdev, report: rep, reqtype: HID_REQ_SET_REPORT); |
1568 | } |
1569 | } |
1570 | |
1571 | static void mt_post_parse_default_settings(struct mt_device *td, |
1572 | struct mt_application *app) |
1573 | { |
1574 | __s32 quirks = app->quirks; |
1575 | |
1576 | /* unknown serial device needs special quirks */ |
1577 | if (list_is_singular(head: &app->mt_usages)) { |
1578 | quirks |= MT_QUIRK_ALWAYS_VALID; |
1579 | quirks &= ~MT_QUIRK_NOT_SEEN_MEANS_UP; |
1580 | quirks &= ~MT_QUIRK_VALID_IS_INRANGE; |
1581 | quirks &= ~MT_QUIRK_VALID_IS_CONFIDENCE; |
1582 | quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; |
1583 | } |
1584 | |
1585 | app->quirks = quirks; |
1586 | } |
1587 | |
1588 | static void mt_post_parse(struct mt_device *td, struct mt_application *app) |
1589 | { |
1590 | if (!app->have_contact_count) |
1591 | app->quirks &= ~MT_QUIRK_CONTACT_CNT_ACCURATE; |
1592 | } |
1593 | |
1594 | static int mt_input_configured(struct hid_device *hdev, struct hid_input *hi) |
1595 | { |
1596 | struct mt_device *td = hid_get_drvdata(hdev); |
1597 | const char *suffix = NULL; |
1598 | struct mt_report_data *rdata; |
1599 | struct mt_application *mt_application = NULL; |
1600 | struct hid_report *report; |
1601 | int ret; |
1602 | |
1603 | list_for_each_entry(report, &hi->reports, hidinput_list) { |
1604 | rdata = mt_find_report_data(td, report); |
1605 | if (!rdata) { |
1606 | hid_err(hdev, "failed to allocate data for report\n" ); |
1607 | return -ENOMEM; |
1608 | } |
1609 | |
1610 | mt_application = rdata->application; |
1611 | |
1612 | if (rdata->is_mt_collection) { |
1613 | ret = mt_touch_input_configured(hdev, hi, |
1614 | app: mt_application); |
1615 | if (ret) |
1616 | return ret; |
1617 | } |
1618 | } |
1619 | |
1620 | switch (hi->application) { |
1621 | case HID_GD_KEYBOARD: |
1622 | case HID_GD_KEYPAD: |
1623 | case HID_GD_MOUSE: |
1624 | case HID_DG_TOUCHPAD: |
1625 | case HID_GD_SYSTEM_CONTROL: |
1626 | case HID_CP_CONSUMER_CONTROL: |
1627 | case HID_GD_WIRELESS_RADIO_CTLS: |
1628 | case HID_GD_SYSTEM_MULTIAXIS: |
1629 | /* already handled by hid core */ |
1630 | break; |
1631 | case HID_DG_TOUCHSCREEN: |
1632 | /* we do not set suffix = "Touchscreen" */ |
1633 | hi->input->name = hdev->name; |
1634 | break; |
1635 | case HID_VD_ASUS_CUSTOM_MEDIA_KEYS: |
1636 | suffix = "Custom Media Keys" ; |
1637 | break; |
1638 | case HID_DG_STYLUS: |
1639 | /* force BTN_STYLUS to allow tablet matching in udev */ |
1640 | __set_bit(BTN_STYLUS, hi->input->keybit); |
1641 | break; |
1642 | default: |
1643 | suffix = "UNKNOWN" ; |
1644 | break; |
1645 | } |
1646 | |
1647 | if (suffix) |
1648 | hi->input->name = devm_kasprintf(dev: &hdev->dev, GFP_KERNEL, |
1649 | fmt: "%s %s" , hdev->name, suffix); |
1650 | |
1651 | return 0; |
1652 | } |
1653 | |
1654 | static void mt_fix_const_field(struct hid_field *field, unsigned int usage) |
1655 | { |
1656 | if (field->usage[0].hid != usage || |
1657 | !(field->flags & HID_MAIN_ITEM_CONSTANT)) |
1658 | return; |
1659 | |
1660 | field->flags &= ~HID_MAIN_ITEM_CONSTANT; |
1661 | field->flags |= HID_MAIN_ITEM_VARIABLE; |
1662 | } |
1663 | |
1664 | static void mt_fix_const_fields(struct hid_device *hdev, unsigned int usage) |
1665 | { |
1666 | struct hid_report *report; |
1667 | int i; |
1668 | |
1669 | list_for_each_entry(report, |
1670 | &hdev->report_enum[HID_INPUT_REPORT].report_list, |
1671 | list) { |
1672 | |
1673 | if (!report->maxfield) |
1674 | continue; |
1675 | |
1676 | for (i = 0; i < report->maxfield; i++) |
1677 | if (report->field[i]->maxusage >= 1) |
1678 | mt_fix_const_field(field: report->field[i], usage); |
1679 | } |
1680 | } |
1681 | |
1682 | static void mt_release_contacts(struct hid_device *hid) |
1683 | { |
1684 | struct hid_input *hidinput; |
1685 | struct mt_application *application; |
1686 | struct mt_device *td = hid_get_drvdata(hdev: hid); |
1687 | |
1688 | list_for_each_entry(hidinput, &hid->inputs, list) { |
1689 | struct input_dev *input_dev = hidinput->input; |
1690 | struct input_mt *mt = input_dev->mt; |
1691 | int i; |
1692 | |
1693 | if (mt) { |
1694 | for (i = 0; i < mt->num_slots; i++) { |
1695 | input_mt_slot(dev: input_dev, slot: i); |
1696 | input_mt_report_slot_inactive(dev: input_dev); |
1697 | } |
1698 | input_mt_sync_frame(dev: input_dev); |
1699 | input_sync(dev: input_dev); |
1700 | } |
1701 | } |
1702 | |
1703 | list_for_each_entry(application, &td->applications, list) { |
1704 | application->num_received = 0; |
1705 | } |
1706 | } |
1707 | |
1708 | static void mt_expired_timeout(struct timer_list *t) |
1709 | { |
1710 | struct mt_device *td = from_timer(td, t, release_timer); |
1711 | struct hid_device *hdev = td->hdev; |
1712 | |
1713 | /* |
1714 | * An input report came in just before we release the sticky fingers, |
1715 | * it will take care of the sticky fingers. |
1716 | */ |
1717 | if (test_and_set_bit_lock(MT_IO_FLAGS_RUNNING, addr: &td->mt_io_flags)) |
1718 | return; |
1719 | if (test_bit(MT_IO_FLAGS_PENDING_SLOTS, &td->mt_io_flags)) |
1720 | mt_release_contacts(hid: hdev); |
1721 | clear_bit_unlock(MT_IO_FLAGS_RUNNING, addr: &td->mt_io_flags); |
1722 | } |
1723 | |
1724 | static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) |
1725 | { |
1726 | int ret, i; |
1727 | struct mt_device *td; |
1728 | const struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ |
1729 | |
1730 | for (i = 0; mt_classes[i].name ; i++) { |
1731 | if (id->driver_data == mt_classes[i].name) { |
1732 | mtclass = &(mt_classes[i]); |
1733 | break; |
1734 | } |
1735 | } |
1736 | |
1737 | td = devm_kzalloc(dev: &hdev->dev, size: sizeof(struct mt_device), GFP_KERNEL); |
1738 | if (!td) { |
1739 | dev_err(&hdev->dev, "cannot allocate multitouch data\n" ); |
1740 | return -ENOMEM; |
1741 | } |
1742 | td->hdev = hdev; |
1743 | td->mtclass = *mtclass; |
1744 | td->inputmode_value = MT_INPUTMODE_TOUCHSCREEN; |
1745 | hid_set_drvdata(hdev, data: td); |
1746 | |
1747 | INIT_LIST_HEAD(list: &td->applications); |
1748 | INIT_LIST_HEAD(list: &td->reports); |
1749 | |
1750 | if (id->vendor == HID_ANY_ID && id->product == HID_ANY_ID) |
1751 | td->serial_maybe = true; |
1752 | |
1753 | |
1754 | /* Orientation is inverted if the X or Y axes are |
1755 | * flipped, but normalized if both are inverted. |
1756 | */ |
1757 | if (hdev->quirks & (HID_QUIRK_X_INVERT | HID_QUIRK_Y_INVERT) && |
1758 | !((hdev->quirks & HID_QUIRK_X_INVERT) |
1759 | && (hdev->quirks & HID_QUIRK_Y_INVERT))) |
1760 | td->mtclass.quirks = MT_QUIRK_ORIENTATION_INVERT; |
1761 | |
1762 | /* This allows the driver to correctly support devices |
1763 | * that emit events over several HID messages. |
1764 | */ |
1765 | hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; |
1766 | |
1767 | /* |
1768 | * This allows the driver to handle different input sensors |
1769 | * that emits events through different applications on the same HID |
1770 | * device. |
1771 | */ |
1772 | hdev->quirks |= HID_QUIRK_INPUT_PER_APP; |
1773 | |
1774 | if (id->group != HID_GROUP_MULTITOUCH_WIN_8) |
1775 | hdev->quirks |= HID_QUIRK_MULTI_INPUT; |
1776 | |
1777 | if (mtclass->quirks & MT_QUIRK_FORCE_MULTI_INPUT) { |
1778 | hdev->quirks &= ~HID_QUIRK_INPUT_PER_APP; |
1779 | hdev->quirks |= HID_QUIRK_MULTI_INPUT; |
1780 | } |
1781 | |
1782 | timer_setup(&td->release_timer, mt_expired_timeout, 0); |
1783 | |
1784 | ret = hid_parse(hdev); |
1785 | if (ret != 0) |
1786 | return ret; |
1787 | |
1788 | if (mtclass->quirks & MT_QUIRK_FIX_CONST_CONTACT_ID) |
1789 | mt_fix_const_fields(hdev, HID_DG_CONTACTID); |
1790 | |
1791 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); |
1792 | if (ret) |
1793 | return ret; |
1794 | |
1795 | ret = sysfs_create_group(kobj: &hdev->dev.kobj, grp: &mt_attribute_group); |
1796 | if (ret) |
1797 | dev_warn(&hdev->dev, "Cannot allocate sysfs group for %s\n" , |
1798 | hdev->name); |
1799 | |
1800 | mt_set_modes(hdev, latency: HID_LATENCY_NORMAL, surface_switch: true, button_switch: true); |
1801 | |
1802 | return 0; |
1803 | } |
1804 | |
1805 | static int mt_suspend(struct hid_device *hdev, pm_message_t state) |
1806 | { |
1807 | struct mt_device *td = hid_get_drvdata(hdev); |
1808 | |
1809 | /* High latency is desirable for power savings during S3/S0ix */ |
1810 | if ((td->mtclass.quirks & MT_QUIRK_DISABLE_WAKEUP) || |
1811 | !hid_hw_may_wakeup(hdev)) |
1812 | mt_set_modes(hdev, latency: HID_LATENCY_HIGH, surface_switch: false, button_switch: false); |
1813 | else |
1814 | mt_set_modes(hdev, latency: HID_LATENCY_HIGH, surface_switch: true, button_switch: true); |
1815 | |
1816 | return 0; |
1817 | } |
1818 | |
1819 | static int mt_reset_resume(struct hid_device *hdev) |
1820 | { |
1821 | mt_release_contacts(hid: hdev); |
1822 | mt_set_modes(hdev, latency: HID_LATENCY_NORMAL, surface_switch: true, button_switch: true); |
1823 | return 0; |
1824 | } |
1825 | |
1826 | static int mt_resume(struct hid_device *hdev) |
1827 | { |
1828 | /* Some Elan legacy devices require SET_IDLE to be set on resume. |
1829 | * It should be safe to send it to other devices too. |
1830 | * Tested on 3M, Stantum, Cypress, Zytronic, eGalax, and Elan panels. */ |
1831 | |
1832 | hid_hw_idle(hdev, report: 0, idle: 0, reqtype: HID_REQ_SET_IDLE); |
1833 | |
1834 | mt_set_modes(hdev, latency: HID_LATENCY_NORMAL, surface_switch: true, button_switch: true); |
1835 | |
1836 | return 0; |
1837 | } |
1838 | |
1839 | static void mt_remove(struct hid_device *hdev) |
1840 | { |
1841 | struct mt_device *td = hid_get_drvdata(hdev); |
1842 | |
1843 | del_timer_sync(timer: &td->release_timer); |
1844 | |
1845 | sysfs_remove_group(kobj: &hdev->dev.kobj, grp: &mt_attribute_group); |
1846 | hid_hw_stop(hdev); |
1847 | } |
1848 | |
1849 | /* |
1850 | * This list contains only: |
1851 | * - VID/PID of products not working with the default multitouch handling |
1852 | * - 2 generic rules. |
1853 | * So there is no point in adding here any device with MT_CLS_DEFAULT. |
1854 | */ |
1855 | static const struct hid_device_id mt_devices[] = { |
1856 | |
1857 | /* 3M panels */ |
1858 | { .driver_data = MT_CLS_3M, |
1859 | MT_USB_DEVICE(USB_VENDOR_ID_3M, |
1860 | USB_DEVICE_ID_3M1968) }, |
1861 | { .driver_data = MT_CLS_3M, |
1862 | MT_USB_DEVICE(USB_VENDOR_ID_3M, |
1863 | USB_DEVICE_ID_3M2256) }, |
1864 | { .driver_data = MT_CLS_3M, |
1865 | MT_USB_DEVICE(USB_VENDOR_ID_3M, |
1866 | USB_DEVICE_ID_3M3266) }, |
1867 | |
1868 | /* Anton devices */ |
1869 | { .driver_data = MT_CLS_EXPORT_ALL_INPUTS, |
1870 | MT_USB_DEVICE(USB_VENDOR_ID_ANTON, |
1871 | USB_DEVICE_ID_ANTON_TOUCH_PAD) }, |
1872 | |
1873 | /* Asus T101HA */ |
1874 | { .driver_data = MT_CLS_WIN_8_DISABLE_WAKEUP, |
1875 | HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, |
1876 | USB_VENDOR_ID_ASUSTEK, |
1877 | USB_DEVICE_ID_ASUSTEK_T101HA_KEYBOARD) }, |
1878 | |
1879 | /* Asus T304UA */ |
1880 | { .driver_data = MT_CLS_ASUS, |
1881 | HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, |
1882 | USB_VENDOR_ID_ASUSTEK, |
1883 | USB_DEVICE_ID_ASUSTEK_T304_KEYBOARD) }, |
1884 | |
1885 | /* Atmel panels */ |
1886 | { .driver_data = MT_CLS_SERIAL, |
1887 | MT_USB_DEVICE(USB_VENDOR_ID_ATMEL, |
1888 | USB_DEVICE_ID_ATMEL_MXT_DIGITIZER) }, |
1889 | |
1890 | /* Baanto multitouch devices */ |
1891 | { .driver_data = MT_CLS_NSMU, |
1892 | MT_USB_DEVICE(USB_VENDOR_ID_BAANTO, |
1893 | USB_DEVICE_ID_BAANTO_MT_190W2) }, |
1894 | |
1895 | /* Cando panels */ |
1896 | { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, |
1897 | MT_USB_DEVICE(USB_VENDOR_ID_CANDO, |
1898 | USB_DEVICE_ID_CANDO_MULTI_TOUCH) }, |
1899 | { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, |
1900 | MT_USB_DEVICE(USB_VENDOR_ID_CANDO, |
1901 | USB_DEVICE_ID_CANDO_MULTI_TOUCH_15_6) }, |
1902 | |
1903 | /* Chunghwa Telecom touch panels */ |
1904 | { .driver_data = MT_CLS_NSMU, |
1905 | MT_USB_DEVICE(USB_VENDOR_ID_CHUNGHWAT, |
1906 | USB_DEVICE_ID_CHUNGHWAT_MULTITOUCH) }, |
1907 | |
1908 | /* CJTouch panels */ |
1909 | { .driver_data = MT_CLS_NSMU, |
1910 | MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH, |
1911 | USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0020) }, |
1912 | { .driver_data = MT_CLS_NSMU, |
1913 | MT_USB_DEVICE(USB_VENDOR_ID_CJTOUCH, |
1914 | USB_DEVICE_ID_CJTOUCH_MULTI_TOUCH_0040) }, |
1915 | |
1916 | /* CVTouch panels */ |
1917 | { .driver_data = MT_CLS_NSMU, |
1918 | MT_USB_DEVICE(USB_VENDOR_ID_CVTOUCH, |
1919 | USB_DEVICE_ID_CVTOUCH_SCREEN) }, |
1920 | |
1921 | /* eGalax devices (SAW) */ |
1922 | { .driver_data = MT_CLS_EXPORT_ALL_INPUTS, |
1923 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1924 | USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER) }, |
1925 | |
1926 | /* eGalax devices (resistive) */ |
1927 | { .driver_data = MT_CLS_EGALAX, |
1928 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1929 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) }, |
1930 | { .driver_data = MT_CLS_EGALAX, |
1931 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1932 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) }, |
1933 | |
1934 | /* eGalax devices (capacitive) */ |
1935 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
1936 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1937 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7207) }, |
1938 | { .driver_data = MT_CLS_EGALAX, |
1939 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1940 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) }, |
1941 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
1942 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1943 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7224) }, |
1944 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
1945 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1946 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_722A) }, |
1947 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
1948 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1949 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_725E) }, |
1950 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
1951 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1952 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7262) }, |
1953 | { .driver_data = MT_CLS_EGALAX, |
1954 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1955 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) }, |
1956 | { .driver_data = MT_CLS_EGALAX, |
1957 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1958 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) }, |
1959 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
1960 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1961 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72AA) }, |
1962 | { .driver_data = MT_CLS_EGALAX, |
1963 | HID_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1964 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72C4) }, |
1965 | { .driver_data = MT_CLS_EGALAX, |
1966 | HID_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1967 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72D0) }, |
1968 | { .driver_data = MT_CLS_EGALAX, |
1969 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1970 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) }, |
1971 | { .driver_data = MT_CLS_EGALAX, |
1972 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1973 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) }, |
1974 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
1975 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1976 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7349) }, |
1977 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
1978 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1979 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_73F7) }, |
1980 | { .driver_data = MT_CLS_EGALAX_SERIAL, |
1981 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1982 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) }, |
1983 | { .driver_data = MT_CLS_EGALAX, |
1984 | MT_USB_DEVICE(USB_VENDOR_ID_DWAV, |
1985 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_C002) }, |
1986 | |
1987 | /* Elan devices */ |
1988 | { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, |
1989 | HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, |
1990 | USB_VENDOR_ID_ELAN, 0x313a) }, |
1991 | |
1992 | { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, |
1993 | HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, |
1994 | USB_VENDOR_ID_ELAN, 0x3148) }, |
1995 | |
1996 | /* Elitegroup panel */ |
1997 | { .driver_data = MT_CLS_SERIAL, |
1998 | MT_USB_DEVICE(USB_VENDOR_ID_ELITEGROUP, |
1999 | USB_DEVICE_ID_ELITEGROUP_05D8) }, |
2000 | |
2001 | /* Flatfrog Panels */ |
2002 | { .driver_data = MT_CLS_FLATFROG, |
2003 | MT_USB_DEVICE(USB_VENDOR_ID_FLATFROG, |
2004 | USB_DEVICE_ID_MULTITOUCH_3200) }, |
2005 | |
2006 | /* FocalTech Panels */ |
2007 | { .driver_data = MT_CLS_SERIAL, |
2008 | MT_USB_DEVICE(USB_VENDOR_ID_CYGNAL, |
2009 | USB_DEVICE_ID_FOCALTECH_FTXXXX_MULTITOUCH) }, |
2010 | |
2011 | /* GeneralTouch panel */ |
2012 | { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, |
2013 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
2014 | USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, |
2015 | { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, |
2016 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
2017 | USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PWT_TENFINGERS) }, |
2018 | { .driver_data = MT_CLS_GENERALTOUCH_TWOFINGERS, |
2019 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
2020 | USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0101) }, |
2021 | { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, |
2022 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
2023 | USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0102) }, |
2024 | { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, |
2025 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
2026 | USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_0106) }, |
2027 | { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, |
2028 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
2029 | USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_010A) }, |
2030 | { .driver_data = MT_CLS_GENERALTOUCH_PWT_TENFINGERS, |
2031 | MT_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
2032 | USB_DEVICE_ID_GENERAL_TOUCH_WIN8_PIT_E100) }, |
2033 | |
2034 | /* Gametel game controller */ |
2035 | { .driver_data = MT_CLS_NSMU, |
2036 | MT_BT_DEVICE(USB_VENDOR_ID_FRUCTEL, |
2037 | USB_DEVICE_ID_GAMETEL_MT_MODE) }, |
2038 | |
2039 | /* GoodTouch panels */ |
2040 | { .driver_data = MT_CLS_NSMU, |
2041 | MT_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH, |
2042 | USB_DEVICE_ID_GOODTOUCH_000f) }, |
2043 | |
2044 | /* Hanvon panels */ |
2045 | { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, |
2046 | MT_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, |
2047 | USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) }, |
2048 | |
2049 | /* Ilitek dual touch panel */ |
2050 | { .driver_data = MT_CLS_NSMU, |
2051 | MT_USB_DEVICE(USB_VENDOR_ID_ILITEK, |
2052 | USB_DEVICE_ID_ILITEK_MULTITOUCH) }, |
2053 | |
2054 | /* LG Melfas panel */ |
2055 | { .driver_data = MT_CLS_LG, |
2056 | HID_USB_DEVICE(USB_VENDOR_ID_LG, |
2057 | USB_DEVICE_ID_LG_MELFAS_MT) }, |
2058 | { .driver_data = MT_CLS_LG, |
2059 | HID_DEVICE(BUS_I2C, HID_GROUP_GENERIC, |
2060 | USB_VENDOR_ID_LG, I2C_DEVICE_ID_LG_7010) }, |
2061 | |
2062 | /* Lenovo X1 TAB Gen 2 */ |
2063 | { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, |
2064 | HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, |
2065 | USB_VENDOR_ID_LENOVO, |
2066 | USB_DEVICE_ID_LENOVO_X1_TAB) }, |
2067 | |
2068 | /* Lenovo X1 TAB Gen 3 */ |
2069 | { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, |
2070 | HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, |
2071 | USB_VENDOR_ID_LENOVO, |
2072 | USB_DEVICE_ID_LENOVO_X1_TAB3) }, |
2073 | |
2074 | /* Lenovo X12 TAB Gen 1 */ |
2075 | { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT_NSMU, |
2076 | HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, |
2077 | USB_VENDOR_ID_LENOVO, |
2078 | USB_DEVICE_ID_LENOVO_X12_TAB) }, |
2079 | |
2080 | /* MosArt panels */ |
2081 | { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, |
2082 | MT_USB_DEVICE(USB_VENDOR_ID_ASUS, |
2083 | USB_DEVICE_ID_ASUS_T91MT)}, |
2084 | { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, |
2085 | MT_USB_DEVICE(USB_VENDOR_ID_ASUS, |
2086 | USB_DEVICE_ID_ASUSTEK_MULTITOUCH_YFO) }, |
2087 | { .driver_data = MT_CLS_CONFIDENCE_MINUS_ONE, |
2088 | MT_USB_DEVICE(USB_VENDOR_ID_TURBOX, |
2089 | USB_DEVICE_ID_TURBOX_TOUCHSCREEN_MOSART) }, |
2090 | |
2091 | /* Novatek Panel */ |
2092 | { .driver_data = MT_CLS_NSMU, |
2093 | MT_USB_DEVICE(USB_VENDOR_ID_NOVATEK, |
2094 | USB_DEVICE_ID_NOVATEK_PCT) }, |
2095 | |
2096 | /* Ntrig Panel */ |
2097 | { .driver_data = MT_CLS_NSMU, |
2098 | HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, |
2099 | USB_VENDOR_ID_NTRIG, 0x1b05) }, |
2100 | |
2101 | /* Panasonic panels */ |
2102 | { .driver_data = MT_CLS_PANASONIC, |
2103 | MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, |
2104 | USB_DEVICE_ID_PANABOARD_UBT780) }, |
2105 | { .driver_data = MT_CLS_PANASONIC, |
2106 | MT_USB_DEVICE(USB_VENDOR_ID_PANASONIC, |
2107 | USB_DEVICE_ID_PANABOARD_UBT880) }, |
2108 | |
2109 | /* PixArt optical touch screen */ |
2110 | { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, |
2111 | MT_USB_DEVICE(USB_VENDOR_ID_PIXART, |
2112 | USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) }, |
2113 | { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, |
2114 | MT_USB_DEVICE(USB_VENDOR_ID_PIXART, |
2115 | USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) }, |
2116 | { .driver_data = MT_CLS_INRANGE_CONTACTNUMBER, |
2117 | MT_USB_DEVICE(USB_VENDOR_ID_PIXART, |
2118 | USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) }, |
2119 | |
2120 | /* PixCir-based panels */ |
2121 | { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, |
2122 | MT_USB_DEVICE(USB_VENDOR_ID_CANDO, |
2123 | USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, |
2124 | |
2125 | /* Quanta-based panels */ |
2126 | { .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID, |
2127 | MT_USB_DEVICE(USB_VENDOR_ID_QUANTA, |
2128 | USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) }, |
2129 | |
2130 | /* Razer touchpads */ |
2131 | { .driver_data = MT_CLS_RAZER_BLADE_STEALTH, |
2132 | HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, |
2133 | USB_VENDOR_ID_SYNAPTICS, 0x8323) }, |
2134 | |
2135 | /* Smart Tech panels */ |
2136 | { .driver_data = MT_CLS_SMART_TECH, |
2137 | MT_USB_DEVICE(0x0b8c, 0x0092)}, |
2138 | |
2139 | /* Stantum panels */ |
2140 | { .driver_data = MT_CLS_CONFIDENCE, |
2141 | MT_USB_DEVICE(USB_VENDOR_ID_STANTUM_STM, |
2142 | USB_DEVICE_ID_MTP_STM)}, |
2143 | |
2144 | /* Synaptics devices */ |
2145 | { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, |
2146 | HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, |
2147 | USB_VENDOR_ID_SYNAPTICS, 0xcd7e) }, |
2148 | |
2149 | { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, |
2150 | HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, |
2151 | USB_VENDOR_ID_SYNAPTICS, 0xce08) }, |
2152 | |
2153 | { .driver_data = MT_CLS_WIN_8_FORCE_MULTI_INPUT, |
2154 | HID_DEVICE(BUS_I2C, HID_GROUP_MULTITOUCH_WIN_8, |
2155 | USB_VENDOR_ID_SYNAPTICS, 0xce09) }, |
2156 | |
2157 | /* TopSeed panels */ |
2158 | { .driver_data = MT_CLS_TOPSEED, |
2159 | MT_USB_DEVICE(USB_VENDOR_ID_TOPSEED2, |
2160 | USB_DEVICE_ID_TOPSEED2_PERIPAD_701) }, |
2161 | |
2162 | /* Touch International panels */ |
2163 | { .driver_data = MT_CLS_NSMU, |
2164 | MT_USB_DEVICE(USB_VENDOR_ID_TOUCH_INTL, |
2165 | USB_DEVICE_ID_TOUCH_INTL_MULTI_TOUCH) }, |
2166 | |
2167 | /* Unitec panels */ |
2168 | { .driver_data = MT_CLS_NSMU, |
2169 | MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, |
2170 | USB_DEVICE_ID_UNITEC_USB_TOUCH_0709) }, |
2171 | { .driver_data = MT_CLS_NSMU, |
2172 | MT_USB_DEVICE(USB_VENDOR_ID_UNITEC, |
2173 | USB_DEVICE_ID_UNITEC_USB_TOUCH_0A19) }, |
2174 | |
2175 | /* VTL panels */ |
2176 | { .driver_data = MT_CLS_VTL, |
2177 | MT_USB_DEVICE(USB_VENDOR_ID_VTL, |
2178 | USB_DEVICE_ID_VTL_MULTITOUCH_FF3F) }, |
2179 | |
2180 | /* Winbond Electronics Corp. */ |
2181 | { .driver_data = MT_CLS_WIN_8_NO_STICKY_FINGERS, |
2182 | HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8, |
2183 | USB_VENDOR_ID_WINBOND, USB_DEVICE_ID_TSTP_MTOUCH) }, |
2184 | |
2185 | /* Wistron panels */ |
2186 | { .driver_data = MT_CLS_NSMU, |
2187 | MT_USB_DEVICE(USB_VENDOR_ID_WISTRON, |
2188 | USB_DEVICE_ID_WISTRON_OPTICAL_TOUCH) }, |
2189 | |
2190 | /* XAT */ |
2191 | { .driver_data = MT_CLS_NSMU, |
2192 | MT_USB_DEVICE(USB_VENDOR_ID_XAT, |
2193 | USB_DEVICE_ID_XAT_CSR) }, |
2194 | |
2195 | /* Xiroku */ |
2196 | { .driver_data = MT_CLS_NSMU, |
2197 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
2198 | USB_DEVICE_ID_XIROKU_SPX) }, |
2199 | { .driver_data = MT_CLS_NSMU, |
2200 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
2201 | USB_DEVICE_ID_XIROKU_MPX) }, |
2202 | { .driver_data = MT_CLS_NSMU, |
2203 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
2204 | USB_DEVICE_ID_XIROKU_CSR) }, |
2205 | { .driver_data = MT_CLS_NSMU, |
2206 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
2207 | USB_DEVICE_ID_XIROKU_SPX1) }, |
2208 | { .driver_data = MT_CLS_NSMU, |
2209 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
2210 | USB_DEVICE_ID_XIROKU_MPX1) }, |
2211 | { .driver_data = MT_CLS_NSMU, |
2212 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
2213 | USB_DEVICE_ID_XIROKU_CSR1) }, |
2214 | { .driver_data = MT_CLS_NSMU, |
2215 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
2216 | USB_DEVICE_ID_XIROKU_SPX2) }, |
2217 | { .driver_data = MT_CLS_NSMU, |
2218 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
2219 | USB_DEVICE_ID_XIROKU_MPX2) }, |
2220 | { .driver_data = MT_CLS_NSMU, |
2221 | MT_USB_DEVICE(USB_VENDOR_ID_XIROKU, |
2222 | USB_DEVICE_ID_XIROKU_CSR2) }, |
2223 | |
2224 | /* Google MT devices */ |
2225 | { .driver_data = MT_CLS_GOOGLE, |
2226 | HID_DEVICE(HID_BUS_ANY, HID_GROUP_ANY, USB_VENDOR_ID_GOOGLE, |
2227 | USB_DEVICE_ID_GOOGLE_TOUCH_ROSE) }, |
2228 | { .driver_data = MT_CLS_GOOGLE, |
2229 | HID_DEVICE(BUS_USB, HID_GROUP_MULTITOUCH_WIN_8, USB_VENDOR_ID_GOOGLE, |
2230 | USB_DEVICE_ID_GOOGLE_WHISKERS) }, |
2231 | |
2232 | /* Generic MT device */ |
2233 | { HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH, HID_ANY_ID, HID_ANY_ID) }, |
2234 | |
2235 | /* Generic Win 8 certified MT device */ |
2236 | { .driver_data = MT_CLS_WIN_8, |
2237 | HID_DEVICE(HID_BUS_ANY, HID_GROUP_MULTITOUCH_WIN_8, |
2238 | HID_ANY_ID, HID_ANY_ID) }, |
2239 | { } |
2240 | }; |
2241 | MODULE_DEVICE_TABLE(hid, mt_devices); |
2242 | |
2243 | static const struct hid_usage_id mt_grabbed_usages[] = { |
2244 | { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, |
2245 | { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} |
2246 | }; |
2247 | |
2248 | static struct hid_driver mt_driver = { |
2249 | .name = "hid-multitouch" , |
2250 | .id_table = mt_devices, |
2251 | .probe = mt_probe, |
2252 | .remove = mt_remove, |
2253 | .input_mapping = mt_input_mapping, |
2254 | .input_mapped = mt_input_mapped, |
2255 | .input_configured = mt_input_configured, |
2256 | .feature_mapping = mt_feature_mapping, |
2257 | .usage_table = mt_grabbed_usages, |
2258 | .event = mt_event, |
2259 | .report = mt_report, |
2260 | .suspend = pm_ptr(mt_suspend), |
2261 | .reset_resume = pm_ptr(mt_reset_resume), |
2262 | .resume = pm_ptr(mt_resume), |
2263 | }; |
2264 | module_hid_driver(mt_driver); |
2265 | |