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5519cab4 BT |
1 | /* |
2 | * HID driver for multitouch panels | |
3 | * | |
4 | * Copyright (c) 2010-2011 Stephane Chatty <chatty@enac.fr> | |
5 | * Copyright (c) 2010-2011 Benjamin Tissoires <benjamin.tissoires@gmail.com> | |
6 | * Copyright (c) 2010-2011 Ecole Nationale de l'Aviation Civile, France | |
7 | * | |
4875ac11 RN |
8 | * This code is partly based on hid-egalax.c: |
9 | * | |
10 | * Copyright (c) 2010 Stephane Chatty <chatty@enac.fr> | |
11 | * Copyright (c) 2010 Henrik Rydberg <rydberg@euromail.se> | |
12 | * Copyright (c) 2010 Canonical, Ltd. | |
13 | * | |
5519cab4 BT |
14 | */ |
15 | ||
16 | /* | |
17 | * This program is free software; you can redistribute it and/or modify it | |
18 | * under the terms of the GNU General Public License as published by the Free | |
19 | * Software Foundation; either version 2 of the License, or (at your option) | |
20 | * any later version. | |
21 | */ | |
22 | ||
23 | #include <linux/device.h> | |
24 | #include <linux/hid.h> | |
25 | #include <linux/module.h> | |
26 | #include <linux/slab.h> | |
27 | #include <linux/usb.h> | |
28 | #include <linux/input/mt.h> | |
29 | #include "usbhid/usbhid.h" | |
30 | ||
31 | ||
32 | MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>"); | |
ef2fafb3 | 33 | MODULE_AUTHOR("Benjamin Tissoires <benjamin.tissoires@gmail.com>"); |
5519cab4 BT |
34 | MODULE_DESCRIPTION("HID multitouch panels"); |
35 | MODULE_LICENSE("GPL"); | |
36 | ||
37 | #include "hid-ids.h" | |
38 | ||
39 | /* quirks to control the device */ | |
40 | #define MT_QUIRK_NOT_SEEN_MEANS_UP (1 << 0) | |
41 | #define MT_QUIRK_SLOT_IS_CONTACTID (1 << 1) | |
2d93666e | 42 | #define MT_QUIRK_CYPRESS (1 << 2) |
5572da08 | 43 | #define MT_QUIRK_SLOT_IS_CONTACTNUMBER (1 << 3) |
2d93666e BT |
44 | #define MT_QUIRK_VALID_IS_INRANGE (1 << 4) |
45 | #define MT_QUIRK_VALID_IS_CONFIDENCE (1 << 5) | |
4875ac11 | 46 | #define MT_QUIRK_EGALAX_XYZ_FIXUP (1 << 6) |
5519cab4 BT |
47 | |
48 | struct mt_slot { | |
49 | __s32 x, y, p, w, h; | |
50 | __s32 contactid; /* the device ContactID assigned to this slot */ | |
51 | bool touch_state; /* is the touch valid? */ | |
52 | bool seen_in_this_frame;/* has this slot been updated */ | |
53 | }; | |
54 | ||
55 | struct mt_device { | |
56 | struct mt_slot curdata; /* placeholder of incoming data */ | |
57 | struct mt_class *mtclass; /* our mt device class */ | |
58 | unsigned last_field_index; /* last field index of the report */ | |
59 | unsigned last_slot_field; /* the last field of a slot */ | |
60 | __s8 inputmode; /* InputMode HID feature, -1 if non-existent */ | |
61 | __u8 num_received; /* how many contacts we received */ | |
62 | __u8 num_expected; /* expected last contact index */ | |
9498f954 | 63 | __u8 maxcontacts; |
5519cab4 | 64 | bool curvalid; /* is the current contact valid? */ |
9498f954 | 65 | struct mt_slot *slots; |
5519cab4 BT |
66 | }; |
67 | ||
68 | struct mt_class { | |
2d93666e | 69 | __s32 name; /* MT_CLS */ |
5519cab4 BT |
70 | __s32 quirks; |
71 | __s32 sn_move; /* Signal/noise ratio for move events */ | |
72 | __s32 sn_pressure; /* Signal/noise ratio for pressure events */ | |
73 | __u8 maxcontacts; | |
74 | }; | |
75 | ||
76 | /* classes of device behavior */ | |
1e9cf35b BT |
77 | #define MT_CLS_DEFAULT 1 |
78 | #define MT_CLS_DUAL_INRANGE_CONTACTID 2 | |
79 | #define MT_CLS_DUAL_INRANGE_CONTACTNUMBER 3 | |
80 | #define MT_CLS_CYPRESS 4 | |
4875ac11 | 81 | #define MT_CLS_EGALAX 5 |
043b403a | 82 | #define MT_CLS_STANTUM 6 |
5519cab4 | 83 | |
9498f954 BT |
84 | #define MT_DEFAULT_MAXCONTACT 10 |
85 | ||
5519cab4 BT |
86 | /* |
87 | * these device-dependent functions determine what slot corresponds | |
88 | * to a valid contact that was just read. | |
89 | */ | |
90 | ||
a3b5e577 BT |
91 | static int cypress_compute_slot(struct mt_device *td) |
92 | { | |
93 | if (td->curdata.contactid != 0 || td->num_received == 0) | |
94 | return td->curdata.contactid; | |
95 | else | |
96 | return -1; | |
97 | } | |
98 | ||
5519cab4 BT |
99 | static int find_slot_from_contactid(struct mt_device *td) |
100 | { | |
101 | int i; | |
9498f954 | 102 | for (i = 0; i < td->maxcontacts; ++i) { |
5519cab4 BT |
103 | if (td->slots[i].contactid == td->curdata.contactid && |
104 | td->slots[i].touch_state) | |
105 | return i; | |
106 | } | |
9498f954 | 107 | for (i = 0; i < td->maxcontacts; ++i) { |
5519cab4 BT |
108 | if (!td->slots[i].seen_in_this_frame && |
109 | !td->slots[i].touch_state) | |
110 | return i; | |
111 | } | |
5519cab4 BT |
112 | /* should not occurs. If this happens that means |
113 | * that the device sent more touches that it says | |
114 | * in the report descriptor. It is ignored then. */ | |
2d93666e | 115 | return -1; |
5519cab4 BT |
116 | } |
117 | ||
118 | struct mt_class mt_classes[] = { | |
2d93666e | 119 | { .name = MT_CLS_DEFAULT, |
9498f954 | 120 | .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP }, |
1e9cf35b | 121 | { .name = MT_CLS_DUAL_INRANGE_CONTACTID, |
2d93666e BT |
122 | .quirks = MT_QUIRK_VALID_IS_INRANGE | |
123 | MT_QUIRK_SLOT_IS_CONTACTID, | |
124 | .maxcontacts = 2 }, | |
1e9cf35b | 125 | { .name = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, |
2d93666e BT |
126 | .quirks = MT_QUIRK_VALID_IS_INRANGE | |
127 | MT_QUIRK_SLOT_IS_CONTACTNUMBER, | |
128 | .maxcontacts = 2 }, | |
129 | { .name = MT_CLS_CYPRESS, | |
130 | .quirks = MT_QUIRK_NOT_SEEN_MEANS_UP | | |
131 | MT_QUIRK_CYPRESS, | |
132 | .maxcontacts = 10 }, | |
133 | ||
4875ac11 RN |
134 | { .name = MT_CLS_EGALAX, |
135 | .quirks = MT_QUIRK_SLOT_IS_CONTACTID | | |
136 | MT_QUIRK_VALID_IS_INRANGE | | |
137 | MT_QUIRK_EGALAX_XYZ_FIXUP, | |
138 | .maxcontacts = 2, | |
139 | .sn_move = 4096, | |
140 | .sn_pressure = 32, | |
141 | }, | |
043b403a BT |
142 | { .name = MT_CLS_STANTUM, |
143 | .quirks = MT_QUIRK_VALID_IS_CONFIDENCE }, | |
144 | ||
2d93666e | 145 | { } |
5519cab4 BT |
146 | }; |
147 | ||
f635bd11 | 148 | static void mt_feature_mapping(struct hid_device *hdev, |
5519cab4 BT |
149 | struct hid_field *field, struct hid_usage *usage) |
150 | { | |
9498f954 BT |
151 | struct mt_device *td = hid_get_drvdata(hdev); |
152 | ||
153 | switch (usage->hid) { | |
154 | case HID_DG_INPUTMODE: | |
5519cab4 | 155 | td->inputmode = field->report->id; |
9498f954 BT |
156 | break; |
157 | case HID_DG_CONTACTMAX: | |
158 | td->maxcontacts = field->value[0]; | |
159 | if (td->mtclass->maxcontacts) | |
160 | /* check if the maxcontacts is given by the class */ | |
161 | td->maxcontacts = td->mtclass->maxcontacts; | |
162 | ||
163 | break; | |
5519cab4 BT |
164 | } |
165 | } | |
166 | ||
167 | static void set_abs(struct input_dev *input, unsigned int code, | |
168 | struct hid_field *field, int snratio) | |
169 | { | |
170 | int fmin = field->logical_minimum; | |
171 | int fmax = field->logical_maximum; | |
172 | int fuzz = snratio ? (fmax - fmin) / snratio : 0; | |
173 | input_set_abs_params(input, code, fmin, fmax, fuzz, 0); | |
174 | } | |
175 | ||
176 | static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi, | |
177 | struct hid_field *field, struct hid_usage *usage, | |
178 | unsigned long **bit, int *max) | |
179 | { | |
180 | struct mt_device *td = hid_get_drvdata(hdev); | |
181 | struct mt_class *cls = td->mtclass; | |
4875ac11 RN |
182 | __s32 quirks = cls->quirks; |
183 | ||
5519cab4 BT |
184 | switch (usage->hid & HID_USAGE_PAGE) { |
185 | ||
186 | case HID_UP_GENDESK: | |
187 | switch (usage->hid) { | |
188 | case HID_GD_X: | |
4875ac11 RN |
189 | if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP) |
190 | field->logical_maximum = 32760; | |
5519cab4 BT |
191 | hid_map_usage(hi, usage, bit, max, |
192 | EV_ABS, ABS_MT_POSITION_X); | |
193 | set_abs(hi->input, ABS_MT_POSITION_X, field, | |
194 | cls->sn_move); | |
195 | /* touchscreen emulation */ | |
196 | set_abs(hi->input, ABS_X, field, cls->sn_move); | |
197 | td->last_slot_field = usage->hid; | |
198 | return 1; | |
199 | case HID_GD_Y: | |
4875ac11 RN |
200 | if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP) |
201 | field->logical_maximum = 32760; | |
5519cab4 BT |
202 | hid_map_usage(hi, usage, bit, max, |
203 | EV_ABS, ABS_MT_POSITION_Y); | |
204 | set_abs(hi->input, ABS_MT_POSITION_Y, field, | |
205 | cls->sn_move); | |
206 | /* touchscreen emulation */ | |
207 | set_abs(hi->input, ABS_Y, field, cls->sn_move); | |
208 | td->last_slot_field = usage->hid; | |
209 | return 1; | |
210 | } | |
211 | return 0; | |
212 | ||
213 | case HID_UP_DIGITIZER: | |
214 | switch (usage->hid) { | |
215 | case HID_DG_INRANGE: | |
216 | td->last_slot_field = usage->hid; | |
217 | return 1; | |
218 | case HID_DG_CONFIDENCE: | |
219 | td->last_slot_field = usage->hid; | |
220 | return 1; | |
221 | case HID_DG_TIPSWITCH: | |
222 | hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH); | |
223 | input_set_capability(hi->input, EV_KEY, BTN_TOUCH); | |
224 | td->last_slot_field = usage->hid; | |
225 | return 1; | |
226 | case HID_DG_CONTACTID: | |
9498f954 | 227 | input_mt_init_slots(hi->input, td->maxcontacts); |
5519cab4 BT |
228 | td->last_slot_field = usage->hid; |
229 | return 1; | |
230 | case HID_DG_WIDTH: | |
231 | hid_map_usage(hi, usage, bit, max, | |
232 | EV_ABS, ABS_MT_TOUCH_MAJOR); | |
233 | td->last_slot_field = usage->hid; | |
234 | return 1; | |
235 | case HID_DG_HEIGHT: | |
236 | hid_map_usage(hi, usage, bit, max, | |
237 | EV_ABS, ABS_MT_TOUCH_MINOR); | |
238 | field->logical_maximum = 1; | |
2d93666e | 239 | field->logical_minimum = 0; |
5519cab4 BT |
240 | set_abs(hi->input, ABS_MT_ORIENTATION, field, 0); |
241 | td->last_slot_field = usage->hid; | |
242 | return 1; | |
243 | case HID_DG_TIPPRESSURE: | |
4875ac11 RN |
244 | if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP) |
245 | field->logical_minimum = 0; | |
5519cab4 BT |
246 | hid_map_usage(hi, usage, bit, max, |
247 | EV_ABS, ABS_MT_PRESSURE); | |
248 | set_abs(hi->input, ABS_MT_PRESSURE, field, | |
249 | cls->sn_pressure); | |
250 | /* touchscreen emulation */ | |
251 | set_abs(hi->input, ABS_PRESSURE, field, | |
252 | cls->sn_pressure); | |
253 | td->last_slot_field = usage->hid; | |
254 | return 1; | |
255 | case HID_DG_CONTACTCOUNT: | |
256 | td->last_field_index = field->report->maxfield - 1; | |
257 | return 1; | |
258 | case HID_DG_CONTACTMAX: | |
259 | /* we don't set td->last_slot_field as contactcount and | |
260 | * contact max are global to the report */ | |
261 | return -1; | |
262 | } | |
263 | /* let hid-input decide for the others */ | |
264 | return 0; | |
265 | ||
266 | case 0xff000000: | |
267 | /* we do not want to map these: no input-oriented meaning */ | |
268 | return -1; | |
269 | } | |
270 | ||
271 | return 0; | |
272 | } | |
273 | ||
274 | static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi, | |
275 | struct hid_field *field, struct hid_usage *usage, | |
276 | unsigned long **bit, int *max) | |
277 | { | |
278 | if (usage->type == EV_KEY || usage->type == EV_ABS) | |
279 | set_bit(usage->type, hi->input->evbit); | |
280 | ||
281 | return -1; | |
282 | } | |
283 | ||
284 | static int mt_compute_slot(struct mt_device *td) | |
285 | { | |
2d93666e | 286 | __s32 quirks = td->mtclass->quirks; |
5519cab4 | 287 | |
2d93666e BT |
288 | if (quirks & MT_QUIRK_SLOT_IS_CONTACTID) |
289 | return td->curdata.contactid; | |
5519cab4 | 290 | |
2d93666e | 291 | if (quirks & MT_QUIRK_CYPRESS) |
a3b5e577 BT |
292 | return cypress_compute_slot(td); |
293 | ||
2d93666e BT |
294 | if (quirks & MT_QUIRK_SLOT_IS_CONTACTNUMBER) |
295 | return td->num_received; | |
5572da08 | 296 | |
5519cab4 BT |
297 | return find_slot_from_contactid(td); |
298 | } | |
299 | ||
300 | /* | |
301 | * this function is called when a whole contact has been processed, | |
302 | * so that it can assign it to a slot and store the data there | |
303 | */ | |
304 | static void mt_complete_slot(struct mt_device *td) | |
305 | { | |
2d93666e | 306 | td->curdata.seen_in_this_frame = true; |
5519cab4 | 307 | if (td->curvalid) { |
5519cab4 BT |
308 | int slotnum = mt_compute_slot(td); |
309 | ||
9498f954 | 310 | if (slotnum >= 0 && slotnum < td->maxcontacts) |
2d93666e | 311 | td->slots[slotnum] = td->curdata; |
5519cab4 BT |
312 | } |
313 | td->num_received++; | |
314 | } | |
315 | ||
316 | ||
317 | /* | |
318 | * this function is called when a whole packet has been received and processed, | |
319 | * so that it can decide what to send to the input layer. | |
320 | */ | |
321 | static void mt_emit_event(struct mt_device *td, struct input_dev *input) | |
322 | { | |
323 | int i; | |
324 | ||
9498f954 | 325 | for (i = 0; i < td->maxcontacts; ++i) { |
5519cab4 BT |
326 | struct mt_slot *s = &(td->slots[i]); |
327 | if ((td->mtclass->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) && | |
328 | !s->seen_in_this_frame) { | |
5519cab4 BT |
329 | s->touch_state = false; |
330 | } | |
331 | ||
332 | input_mt_slot(input, i); | |
333 | input_mt_report_slot_state(input, MT_TOOL_FINGER, | |
334 | s->touch_state); | |
2d93666e BT |
335 | if (s->touch_state) { |
336 | input_event(input, EV_ABS, ABS_MT_POSITION_X, s->x); | |
337 | input_event(input, EV_ABS, ABS_MT_POSITION_Y, s->y); | |
338 | input_event(input, EV_ABS, ABS_MT_PRESSURE, s->p); | |
339 | input_event(input, EV_ABS, ABS_MT_TOUCH_MAJOR, s->w); | |
340 | input_event(input, EV_ABS, ABS_MT_TOUCH_MINOR, s->h); | |
341 | } | |
5519cab4 BT |
342 | s->seen_in_this_frame = false; |
343 | ||
344 | } | |
345 | ||
346 | input_mt_report_pointer_emulation(input, true); | |
347 | input_sync(input); | |
348 | td->num_received = 0; | |
349 | } | |
350 | ||
351 | ||
352 | ||
353 | static int mt_event(struct hid_device *hid, struct hid_field *field, | |
354 | struct hid_usage *usage, __s32 value) | |
355 | { | |
356 | struct mt_device *td = hid_get_drvdata(hid); | |
2d93666e | 357 | __s32 quirks = td->mtclass->quirks; |
5519cab4 | 358 | |
9498f954 | 359 | if (hid->claimed & HID_CLAIMED_INPUT && td->slots) { |
5519cab4 BT |
360 | switch (usage->hid) { |
361 | case HID_DG_INRANGE: | |
2d93666e BT |
362 | if (quirks & MT_QUIRK_VALID_IS_INRANGE) |
363 | td->curvalid = value; | |
5519cab4 BT |
364 | break; |
365 | case HID_DG_TIPSWITCH: | |
2d93666e BT |
366 | if (quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) |
367 | td->curvalid = value; | |
5519cab4 BT |
368 | td->curdata.touch_state = value; |
369 | break; | |
370 | case HID_DG_CONFIDENCE: | |
2d93666e BT |
371 | if (quirks & MT_QUIRK_VALID_IS_CONFIDENCE) |
372 | td->curvalid = value; | |
5519cab4 BT |
373 | break; |
374 | case HID_DG_CONTACTID: | |
375 | td->curdata.contactid = value; | |
376 | break; | |
377 | case HID_DG_TIPPRESSURE: | |
378 | td->curdata.p = value; | |
379 | break; | |
380 | case HID_GD_X: | |
381 | td->curdata.x = value; | |
382 | break; | |
383 | case HID_GD_Y: | |
384 | td->curdata.y = value; | |
385 | break; | |
386 | case HID_DG_WIDTH: | |
387 | td->curdata.w = value; | |
388 | break; | |
389 | case HID_DG_HEIGHT: | |
390 | td->curdata.h = value; | |
391 | break; | |
392 | case HID_DG_CONTACTCOUNT: | |
393 | /* | |
2d93666e BT |
394 | * Includes multi-packet support where subsequent |
395 | * packets are sent with zero contactcount. | |
5519cab4 BT |
396 | */ |
397 | if (value) | |
2d93666e | 398 | td->num_expected = value; |
5519cab4 BT |
399 | break; |
400 | ||
401 | default: | |
402 | /* fallback to the generic hidinput handling */ | |
403 | return 0; | |
404 | } | |
5519cab4 | 405 | |
f153fc39 | 406 | if (usage->hid == td->last_slot_field) { |
2d93666e | 407 | mt_complete_slot(td); |
f153fc39 HR |
408 | if (!td->last_field_index) |
409 | mt_emit_event(td, field->hidinput->input); | |
410 | } | |
2d93666e BT |
411 | |
412 | if (field->index == td->last_field_index | |
413 | && td->num_received >= td->num_expected) | |
414 | mt_emit_event(td, field->hidinput->input); | |
5519cab4 | 415 | |
2d93666e | 416 | } |
5519cab4 BT |
417 | |
418 | /* we have handled the hidinput part, now remains hiddev */ | |
419 | if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event) | |
420 | hid->hiddev_hid_event(hid, field, usage, value); | |
421 | ||
422 | return 1; | |
423 | } | |
424 | ||
425 | static void mt_set_input_mode(struct hid_device *hdev) | |
426 | { | |
427 | struct mt_device *td = hid_get_drvdata(hdev); | |
428 | struct hid_report *r; | |
429 | struct hid_report_enum *re; | |
430 | ||
431 | if (td->inputmode < 0) | |
432 | return; | |
433 | ||
434 | re = &(hdev->report_enum[HID_FEATURE_REPORT]); | |
435 | r = re->report_id_hash[td->inputmode]; | |
436 | if (r) { | |
437 | r->field[0]->value[0] = 0x02; | |
438 | usbhid_submit_report(hdev, r, USB_DIR_OUT); | |
439 | } | |
440 | } | |
441 | ||
442 | static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
443 | { | |
2d93666e | 444 | int ret, i; |
5519cab4 | 445 | struct mt_device *td; |
2d93666e BT |
446 | struct mt_class *mtclass = mt_classes; /* MT_CLS_DEFAULT */ |
447 | ||
448 | for (i = 0; mt_classes[i].name ; i++) { | |
449 | if (id->driver_data == mt_classes[i].name) { | |
450 | mtclass = &(mt_classes[i]); | |
451 | break; | |
452 | } | |
453 | } | |
5519cab4 BT |
454 | |
455 | /* This allows the driver to correctly support devices | |
456 | * that emit events over several HID messages. | |
457 | */ | |
458 | hdev->quirks |= HID_QUIRK_NO_INPUT_SYNC; | |
459 | ||
9498f954 | 460 | td = kzalloc(sizeof(struct mt_device), GFP_KERNEL); |
5519cab4 BT |
461 | if (!td) { |
462 | dev_err(&hdev->dev, "cannot allocate multitouch data\n"); | |
463 | return -ENOMEM; | |
464 | } | |
465 | td->mtclass = mtclass; | |
466 | td->inputmode = -1; | |
467 | hid_set_drvdata(hdev, td); | |
468 | ||
469 | ret = hid_parse(hdev); | |
470 | if (ret != 0) | |
471 | goto fail; | |
472 | ||
473 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); | |
2d93666e | 474 | if (ret) |
5519cab4 BT |
475 | goto fail; |
476 | ||
9498f954 BT |
477 | if (!td->maxcontacts) |
478 | td->maxcontacts = MT_DEFAULT_MAXCONTACT; | |
479 | ||
480 | td->slots = kzalloc(td->maxcontacts * sizeof(struct mt_slot), | |
481 | GFP_KERNEL); | |
482 | if (!td->slots) { | |
483 | dev_err(&hdev->dev, "cannot allocate multitouch slots\n"); | |
484 | hid_hw_stop(hdev); | |
485 | ret = -ENOMEM; | |
486 | goto fail; | |
487 | } | |
488 | ||
5519cab4 BT |
489 | mt_set_input_mode(hdev); |
490 | ||
491 | return 0; | |
492 | ||
493 | fail: | |
494 | kfree(td); | |
495 | return ret; | |
496 | } | |
497 | ||
498 | #ifdef CONFIG_PM | |
499 | static int mt_reset_resume(struct hid_device *hdev) | |
500 | { | |
501 | mt_set_input_mode(hdev); | |
502 | return 0; | |
503 | } | |
504 | #endif | |
505 | ||
506 | static void mt_remove(struct hid_device *hdev) | |
507 | { | |
508 | struct mt_device *td = hid_get_drvdata(hdev); | |
509 | hid_hw_stop(hdev); | |
9498f954 | 510 | kfree(td->slots); |
5519cab4 BT |
511 | kfree(td); |
512 | hid_set_drvdata(hdev, NULL); | |
513 | } | |
514 | ||
515 | static const struct hid_device_id mt_devices[] = { | |
516 | ||
a3b5e577 BT |
517 | /* Cypress panel */ |
518 | { .driver_data = MT_CLS_CYPRESS, | |
519 | HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, | |
520 | USB_DEVICE_ID_CYPRESS_TRUETOUCH) }, | |
521 | ||
5572da08 | 522 | /* GeneralTouch panel */ |
1e9cf35b | 523 | { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER, |
5572da08 BT |
524 | HID_USB_DEVICE(USB_VENDOR_ID_GENERAL_TOUCH, |
525 | USB_DEVICE_ID_GENERAL_TOUCH_WIN7_TWOFINGERS) }, | |
526 | ||
4dfcced8 BT |
527 | /* IRTOUCH panels */ |
528 | { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, | |
529 | HID_USB_DEVICE(USB_VENDOR_ID_IRTOUCHSYSTEMS, | |
530 | USB_DEVICE_ID_IRTOUCH_INFRARED_USB) }, | |
531 | ||
5519cab4 | 532 | /* PixCir-based panels */ |
1e9cf35b | 533 | { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, |
5519cab4 BT |
534 | HID_USB_DEVICE(USB_VENDOR_ID_HANVON, |
535 | USB_DEVICE_ID_HANVON_MULTITOUCH) }, | |
1e9cf35b | 536 | { .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID, |
5519cab4 BT |
537 | HID_USB_DEVICE(USB_VENDOR_ID_CANDO, |
538 | USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) }, | |
539 | ||
4875ac11 RN |
540 | /* Resistive eGalax devices */ |
541 | { .driver_data = MT_CLS_EGALAX, | |
542 | HID_USB_DEVICE(USB_VENDOR_ID_DWAV, | |
543 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) }, | |
544 | { .driver_data = MT_CLS_EGALAX, | |
545 | HID_USB_DEVICE(USB_VENDOR_ID_DWAV, | |
546 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) }, | |
547 | ||
548 | /* Capacitive eGalax devices */ | |
549 | { .driver_data = MT_CLS_EGALAX, | |
550 | HID_USB_DEVICE(USB_VENDOR_ID_DWAV, | |
551 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) }, | |
552 | { .driver_data = MT_CLS_EGALAX, | |
553 | HID_USB_DEVICE(USB_VENDOR_ID_DWAV, | |
554 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) }, | |
555 | { .driver_data = MT_CLS_EGALAX, | |
556 | HID_USB_DEVICE(USB_VENDOR_ID_DWAV, | |
557 | USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) }, | |
558 | ||
043b403a BT |
559 | /* Stantum panels */ |
560 | { .driver_data = MT_CLS_STANTUM, | |
561 | HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, | |
562 | USB_DEVICE_ID_MTP)}, | |
563 | { .driver_data = MT_CLS_STANTUM, | |
564 | HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, | |
565 | USB_DEVICE_ID_MTP_STM)}, | |
566 | { .driver_data = MT_CLS_STANTUM, | |
567 | HID_USB_DEVICE(USB_VENDOR_ID_STANTUM, | |
568 | USB_DEVICE_ID_MTP_SITRONIX)}, | |
569 | ||
5519cab4 BT |
570 | { } |
571 | }; | |
572 | MODULE_DEVICE_TABLE(hid, mt_devices); | |
573 | ||
574 | static const struct hid_usage_id mt_grabbed_usages[] = { | |
575 | { HID_ANY_ID, HID_ANY_ID, HID_ANY_ID }, | |
576 | { HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1} | |
577 | }; | |
578 | ||
579 | static struct hid_driver mt_driver = { | |
580 | .name = "hid-multitouch", | |
581 | .id_table = mt_devices, | |
582 | .probe = mt_probe, | |
583 | .remove = mt_remove, | |
584 | .input_mapping = mt_input_mapping, | |
585 | .input_mapped = mt_input_mapped, | |
586 | .feature_mapping = mt_feature_mapping, | |
587 | .usage_table = mt_grabbed_usages, | |
588 | .event = mt_event, | |
589 | #ifdef CONFIG_PM | |
590 | .reset_resume = mt_reset_resume, | |
591 | #endif | |
592 | }; | |
593 | ||
594 | static int __init mt_init(void) | |
595 | { | |
596 | return hid_register_driver(&mt_driver); | |
597 | } | |
598 | ||
599 | static void __exit mt_exit(void) | |
600 | { | |
601 | hid_unregister_driver(&mt_driver); | |
602 | } | |
603 | ||
604 | module_init(mt_init); | |
605 | module_exit(mt_exit); |