1/*
2 * drivers/input/tablet/wacom_wac.c
3 *
4 * USB Wacom tablet support - Wacom specific code
5 *
6 */
7
8/*
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 */
14
15#include "wacom_wac.h"
16#include "wacom.h"
17#include <linux/input/mt.h>
18
19/* resolution for penabled devices */
20#define WACOM_PL_RES 20
21#define WACOM_PENPRTN_RES 40
22#define WACOM_VOLITO_RES 50
23#define WACOM_GRAPHIRE_RES 80
24#define WACOM_INTUOS_RES 100
25#define WACOM_INTUOS3_RES 200
26
27/* Newer Cintiq and DTU have an offset between tablet and screen areas */
28#define WACOM_DTU_OFFSET 200
29#define WACOM_CINTIQ_OFFSET 400
30
31/*
32 * Scale factor relating reported contact size to logical contact area.
33 * 2^14/pi is a good approximation on Intuos5 and 3rd-gen Bamboo
34 */
35#define WACOM_CONTACT_AREA_SCALE 2607
36
37static bool touch_arbitration = 1;
38module_param(touch_arbitration, bool, 0644);
39MODULE_PARM_DESC(touch_arbitration, " on (Y) off (N)");
40
41static void wacom_report_numbered_buttons(struct input_dev *input_dev,
42 int button_count, int mask);
43
44static int wacom_numbered_button_to_key(int n);
45
46static void wacom_update_led(struct wacom *wacom, int button_count, int mask,
47 int group);
48/*
49 * Percent of battery capacity for Graphire.
50 * 8th value means AC online and show 100% capacity.
51 */
52static unsigned short batcap_gr[8] = { 1, 15, 25, 35, 50, 70, 100, 100 };
53
54/*
55 * Percent of battery capacity for Intuos4 WL, AC has a separate bit.
56 */
57static unsigned short batcap_i4[8] = { 1, 15, 30, 45, 60, 70, 85, 100 };
58
59static void __wacom_notify_battery(struct wacom_battery *battery,
60 int bat_status, int bat_capacity,
61 bool bat_charging, bool bat_connected,
62 bool ps_connected)
63{
64 bool changed = battery->bat_status != bat_status ||
65 battery->battery_capacity != bat_capacity ||
66 battery->bat_charging != bat_charging ||
67 battery->bat_connected != bat_connected ||
68 battery->ps_connected != ps_connected;
69
70 if (changed) {
71 battery->bat_status = bat_status;
72 battery->battery_capacity = bat_capacity;
73 battery->bat_charging = bat_charging;
74 battery->bat_connected = bat_connected;
75 battery->ps_connected = ps_connected;
76
77 if (battery->battery)
78 power_supply_changed(battery->battery);
79 }
80}
81
82static void wacom_notify_battery(struct wacom_wac *wacom_wac,
83 int bat_status, int bat_capacity, bool bat_charging,
84 bool bat_connected, bool ps_connected)
85{
86 struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
87
88 __wacom_notify_battery(&wacom->battery, bat_status, bat_capacity,
89 bat_charging, bat_connected, ps_connected);
90}
91
92static int wacom_penpartner_irq(struct wacom_wac *wacom)
93{
94 unsigned char *data = wacom->data;
95 struct input_dev *input = wacom->pen_input;
96
97 switch (data[0]) {
98 case 1:
99 if (data[5] & 0x80) {
100 wacom->tool[0] = (data[5] & 0x20) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
101 wacom->id[0] = (data[5] & 0x20) ? ERASER_DEVICE_ID : STYLUS_DEVICE_ID;
102 input_report_key(input, wacom->tool[0], 1);
103 input_report_abs(input, ABS_MISC, wacom->id[0]); /* report tool id */
104 input_report_abs(input, ABS_X, get_unaligned_le16(&data[1]));
105 input_report_abs(input, ABS_Y, get_unaligned_le16(&data[3]));
106 input_report_abs(input, ABS_PRESSURE, (signed char)data[6] + 127);
107 input_report_key(input, BTN_TOUCH, ((signed char)data[6] > -127));
108 input_report_key(input, BTN_STYLUS, (data[5] & 0x40));
109 } else {
110 input_report_key(input, wacom->tool[0], 0);
111 input_report_abs(input, ABS_MISC, 0); /* report tool id */
112 input_report_abs(input, ABS_PRESSURE, -1);
113 input_report_key(input, BTN_TOUCH, 0);
114 }
115 break;
116
117 case 2:
118 input_report_key(input, BTN_TOOL_PEN, 1);
119 input_report_abs(input, ABS_MISC, STYLUS_DEVICE_ID); /* report tool id */
120 input_report_abs(input, ABS_X, get_unaligned_le16(&data[1]));
121 input_report_abs(input, ABS_Y, get_unaligned_le16(&data[3]));
122 input_report_abs(input, ABS_PRESSURE, (signed char)data[6] + 127);
123 input_report_key(input, BTN_TOUCH, ((signed char)data[6] > -80) && !(data[5] & 0x20));
124 input_report_key(input, BTN_STYLUS, (data[5] & 0x40));
125 break;
126
127 default:
128 dev_dbg(input->dev.parent,
129 "%s: received unknown report #%d\n", __func__, data[0]);
130 return 0;
131 }
132
133 return 1;
134}
135
136static int wacom_pl_irq(struct wacom_wac *wacom)
137{
138 struct wacom_features *features = &wacom->features;
139 unsigned char *data = wacom->data;
140 struct input_dev *input = wacom->pen_input;
141 int prox, pressure;
142
143 if (data[0] != WACOM_REPORT_PENABLED) {
144 dev_dbg(input->dev.parent,
145 "%s: received unknown report #%d\n", __func__, data[0]);
146 return 0;
147 }
148
149 prox = data[1] & 0x40;
150
151 if (!wacom->id[0]) {
152 if ((data[0] & 0x10) || (data[4] & 0x20)) {
153 wacom->tool[0] = BTN_TOOL_RUBBER;
154 wacom->id[0] = ERASER_DEVICE_ID;
155 }
156 else {
157 wacom->tool[0] = BTN_TOOL_PEN;
158 wacom->id[0] = STYLUS_DEVICE_ID;
159 }
160 }
161
162 /* If the eraser is in prox, STYLUS2 is always set. If we
163 * mis-detected the type and notice that STYLUS2 isn't set
164 * then force the eraser out of prox and let the pen in.
165 */
166 if (wacom->tool[0] == BTN_TOOL_RUBBER && !(data[4] & 0x20)) {
167 input_report_key(input, BTN_TOOL_RUBBER, 0);
168 input_report_abs(input, ABS_MISC, 0);
169 input_sync(input);
170 wacom->tool[0] = BTN_TOOL_PEN;
171 wacom->id[0] = STYLUS_DEVICE_ID;
172 }
173
174 if (prox) {
175 pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
176 if (features->pressure_max > 255)
177 pressure = (pressure << 1) | ((data[4] >> 6) & 1);
178 pressure += (features->pressure_max + 1) / 2;
179
180 input_report_abs(input, ABS_X, data[3] | (data[2] << 7) | ((data[1] & 0x03) << 14));
181 input_report_abs(input, ABS_Y, data[6] | (data[5] << 7) | ((data[4] & 0x03) << 14));
182 input_report_abs(input, ABS_PRESSURE, pressure);
183
184 input_report_key(input, BTN_TOUCH, data[4] & 0x08);
185 input_report_key(input, BTN_STYLUS, data[4] & 0x10);
186 /* Only allow the stylus2 button to be reported for the pen tool. */
187 input_report_key(input, BTN_STYLUS2, (wacom->tool[0] == BTN_TOOL_PEN) && (data[4] & 0x20));
188 }
189
190 if (!prox)
191 wacom->id[0] = 0;
192 input_report_key(input, wacom->tool[0], prox);
193 input_report_abs(input, ABS_MISC, wacom->id[0]);
194 return 1;
195}
196
197static int wacom_ptu_irq(struct wacom_wac *wacom)
198{
199 unsigned char *data = wacom->data;
200 struct input_dev *input = wacom->pen_input;
201
202 if (data[0] != WACOM_REPORT_PENABLED) {
203 dev_dbg(input->dev.parent,
204 "%s: received unknown report #%d\n", __func__, data[0]);
205 return 0;
206 }
207
208 if (data[1] & 0x04) {
209 input_report_key(input, BTN_TOOL_RUBBER, data[1] & 0x20);
210 input_report_key(input, BTN_TOUCH, data[1] & 0x08);
211 wacom->id[0] = ERASER_DEVICE_ID;
212 } else {
213 input_report_key(input, BTN_TOOL_PEN, data[1] & 0x20);
214 input_report_key(input, BTN_TOUCH, data[1] & 0x01);
215 wacom->id[0] = STYLUS_DEVICE_ID;
216 }
217 input_report_abs(input, ABS_MISC, wacom->id[0]); /* report tool id */
218 input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
219 input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
220 input_report_abs(input, ABS_PRESSURE, le16_to_cpup((__le16 *)&data[6]));
221 input_report_key(input, BTN_STYLUS, data[1] & 0x02);
222 input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
223 return 1;
224}
225
226static int wacom_dtu_irq(struct wacom_wac *wacom)
227{
228 unsigned char *data = wacom->data;
229 struct input_dev *input = wacom->pen_input;
230 int prox = data[1] & 0x20;
231
232 dev_dbg(input->dev.parent,
233 "%s: received report #%d", __func__, data[0]);
234
235 if (prox) {
236 /* Going into proximity select tool */
237 wacom->tool[0] = (data[1] & 0x0c) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
238 if (wacom->tool[0] == BTN_TOOL_PEN)
239 wacom->id[0] = STYLUS_DEVICE_ID;
240 else
241 wacom->id[0] = ERASER_DEVICE_ID;
242 }
243 input_report_key(input, BTN_STYLUS, data[1] & 0x02);
244 input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
245 input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
246 input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
247 input_report_abs(input, ABS_PRESSURE, ((data[7] & 0x01) << 8) | data[6]);
248 input_report_key(input, BTN_TOUCH, data[1] & 0x05);
249 if (!prox) /* out-prox */
250 wacom->id[0] = 0;
251 input_report_key(input, wacom->tool[0], prox);
252 input_report_abs(input, ABS_MISC, wacom->id[0]);
253 return 1;
254}
255
256static int wacom_dtus_irq(struct wacom_wac *wacom)
257{
258 char *data = wacom->data;
259 struct input_dev *input = wacom->pen_input;
260 unsigned short prox, pressure = 0;
261
262 if (data[0] != WACOM_REPORT_DTUS && data[0] != WACOM_REPORT_DTUSPAD) {
263 dev_dbg(input->dev.parent,
264 "%s: received unknown report #%d", __func__, data[0]);
265 return 0;
266 } else if (data[0] == WACOM_REPORT_DTUSPAD) {
267 input = wacom->pad_input;
268 input_report_key(input, BTN_0, (data[1] & 0x01));
269 input_report_key(input, BTN_1, (data[1] & 0x02));
270 input_report_key(input, BTN_2, (data[1] & 0x04));
271 input_report_key(input, BTN_3, (data[1] & 0x08));
272 input_report_abs(input, ABS_MISC,
273 data[1] & 0x0f ? PAD_DEVICE_ID : 0);
274 return 1;
275 } else {
276 prox = data[1] & 0x80;
277 if (prox) {
278 switch ((data[1] >> 3) & 3) {
279 case 1: /* Rubber */
280 wacom->tool[0] = BTN_TOOL_RUBBER;
281 wacom->id[0] = ERASER_DEVICE_ID;
282 break;
283
284 case 2: /* Pen */
285 wacom->tool[0] = BTN_TOOL_PEN;
286 wacom->id[0] = STYLUS_DEVICE_ID;
287 break;
288 }
289 }
290
291 input_report_key(input, BTN_STYLUS, data[1] & 0x20);
292 input_report_key(input, BTN_STYLUS2, data[1] & 0x40);
293 input_report_abs(input, ABS_X, get_unaligned_be16(&data[3]));
294 input_report_abs(input, ABS_Y, get_unaligned_be16(&data[5]));
295 pressure = ((data[1] & 0x03) << 8) | (data[2] & 0xff);
296 input_report_abs(input, ABS_PRESSURE, pressure);
297 input_report_key(input, BTN_TOUCH, pressure > 10);
298
299 if (!prox) /* out-prox */
300 wacom->id[0] = 0;
301 input_report_key(input, wacom->tool[0], prox);
302 input_report_abs(input, ABS_MISC, wacom->id[0]);
303 return 1;
304 }
305}
306
307static int wacom_graphire_irq(struct wacom_wac *wacom)
308{
309 struct wacom_features *features = &wacom->features;
310 unsigned char *data = wacom->data;
311 struct input_dev *input = wacom->pen_input;
312 struct input_dev *pad_input = wacom->pad_input;
313 int battery_capacity, ps_connected;
314 int prox;
315 int rw = 0;
316 int retval = 0;
317
318 if (features->type == GRAPHIRE_BT) {
319 if (data[0] != WACOM_REPORT_PENABLED_BT) {
320 dev_dbg(input->dev.parent,
321 "%s: received unknown report #%d\n", __func__,
322 data[0]);
323 goto exit;
324 }
325 } else if (data[0] != WACOM_REPORT_PENABLED) {
326 dev_dbg(input->dev.parent,
327 "%s: received unknown report #%d\n", __func__, data[0]);
328 goto exit;
329 }
330
331 prox = data[1] & 0x80;
332 if (prox || wacom->id[0]) {
333 if (prox) {
334 switch ((data[1] >> 5) & 3) {
335
336 case 0: /* Pen */
337 wacom->tool[0] = BTN_TOOL_PEN;
338 wacom->id[0] = STYLUS_DEVICE_ID;
339 break;
340
341 case 1: /* Rubber */
342 wacom->tool[0] = BTN_TOOL_RUBBER;
343 wacom->id[0] = ERASER_DEVICE_ID;
344 break;
345
346 case 2: /* Mouse with wheel */
347 input_report_key(input, BTN_MIDDLE, data[1] & 0x04);
348 /* fall through */
349
350 case 3: /* Mouse without wheel */
351 wacom->tool[0] = BTN_TOOL_MOUSE;
352 wacom->id[0] = CURSOR_DEVICE_ID;
353 break;
354 }
355 }
356 input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
357 input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
358 if (wacom->tool[0] != BTN_TOOL_MOUSE) {
359 if (features->type == GRAPHIRE_BT)
360 input_report_abs(input, ABS_PRESSURE, data[6] |
361 (((__u16) (data[1] & 0x08)) << 5));
362 else
363 input_report_abs(input, ABS_PRESSURE, data[6] |
364 ((data[7] & 0x03) << 8));
365 input_report_key(input, BTN_TOUCH, data[1] & 0x01);
366 input_report_key(input, BTN_STYLUS, data[1] & 0x02);
367 input_report_key(input, BTN_STYLUS2, data[1] & 0x04);
368 } else {
369 input_report_key(input, BTN_LEFT, data[1] & 0x01);
370 input_report_key(input, BTN_RIGHT, data[1] & 0x02);
371 if (features->type == WACOM_G4 ||
372 features->type == WACOM_MO) {
373 input_report_abs(input, ABS_DISTANCE, data[6] & 0x3f);
374 rw = (data[7] & 0x04) - (data[7] & 0x03);
375 } else if (features->type == GRAPHIRE_BT) {
376 /* Compute distance between mouse and tablet */
377 rw = 44 - (data[6] >> 2);
378 rw = clamp_val(rw, 0, 31);
379 input_report_abs(input, ABS_DISTANCE, rw);
380 if (((data[1] >> 5) & 3) == 2) {
381 /* Mouse with wheel */
382 input_report_key(input, BTN_MIDDLE,
383 data[1] & 0x04);
384 rw = (data[6] & 0x01) ? -1 :
385 (data[6] & 0x02) ? 1 : 0;
386 } else {
387 rw = 0;
388 }
389 } else {
390 input_report_abs(input, ABS_DISTANCE, data[7] & 0x3f);
391 rw = -(signed char)data[6];
392 }
393 input_report_rel(input, REL_WHEEL, rw);
394 }
395
396 if (!prox)
397 wacom->id[0] = 0;
398 input_report_abs(input, ABS_MISC, wacom->id[0]); /* report tool id */
399 input_report_key(input, wacom->tool[0], prox);
400 input_sync(input); /* sync last event */
401 }
402
403 /* send pad data */
404 switch (features->type) {
405 case WACOM_G4:
406 prox = data[7] & 0xf8;
407 if (prox || wacom->id[1]) {
408 wacom->id[1] = PAD_DEVICE_ID;
409 input_report_key(pad_input, BTN_BACK, (data[7] & 0x40));
410 input_report_key(pad_input, BTN_FORWARD, (data[7] & 0x80));
411 rw = ((data[7] & 0x18) >> 3) - ((data[7] & 0x20) >> 3);
412 input_report_rel(pad_input, REL_WHEEL, rw);
413 if (!prox)
414 wacom->id[1] = 0;
415 input_report_abs(pad_input, ABS_MISC, wacom->id[1]);
416 retval = 1;
417 }
418 break;
419
420 case WACOM_MO:
421 prox = (data[7] & 0xf8) || data[8];
422 if (prox || wacom->id[1]) {
423 wacom->id[1] = PAD_DEVICE_ID;
424 input_report_key(pad_input, BTN_BACK, (data[7] & 0x08));
425 input_report_key(pad_input, BTN_LEFT, (data[7] & 0x20));
426 input_report_key(pad_input, BTN_FORWARD, (data[7] & 0x10));
427 input_report_key(pad_input, BTN_RIGHT, (data[7] & 0x40));
428 input_report_abs(pad_input, ABS_WHEEL, (data[8] & 0x7f));
429 if (!prox)
430 wacom->id[1] = 0;
431 input_report_abs(pad_input, ABS_MISC, wacom->id[1]);
432 retval = 1;
433 }
434 break;
435 case GRAPHIRE_BT:
436 prox = data[7] & 0x03;
437 if (prox || wacom->id[1]) {
438 wacom->id[1] = PAD_DEVICE_ID;
439 input_report_key(pad_input, BTN_0, (data[7] & 0x02));
440 input_report_key(pad_input, BTN_1, (data[7] & 0x01));
441 if (!prox)
442 wacom->id[1] = 0;
443 input_report_abs(pad_input, ABS_MISC, wacom->id[1]);
444 retval = 1;
445 }
446 break;
447 }
448
449 /* Store current battery capacity and power supply state */
450 if (features->type == GRAPHIRE_BT) {
451 rw = (data[7] >> 2 & 0x07);
452 battery_capacity = batcap_gr[rw];
453 ps_connected = rw == 7;
454 wacom_notify_battery(wacom, WACOM_POWER_SUPPLY_STATUS_AUTO,
455 battery_capacity, ps_connected, 1,
456 ps_connected);
457 }
458exit:
459 return retval;
460}
461
462static void wacom_intuos_schedule_prox_event(struct wacom_wac *wacom_wac)
463{
464 struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
465 struct wacom_features *features = &wacom_wac->features;
466 struct hid_report *r;
467 struct hid_report_enum *re;
468
469 re = &(wacom->hdev->report_enum[HID_FEATURE_REPORT]);
470 if (features->type == INTUOSHT2)
471 r = re->report_id_hash[WACOM_REPORT_INTUOSHT2_ID];
472 else
473 r = re->report_id_hash[WACOM_REPORT_INTUOS_ID1];
474 if (r) {
475 hid_hw_request(wacom->hdev, r, HID_REQ_GET_REPORT);
476 }
477}
478
479static int wacom_intuos_pad(struct wacom_wac *wacom)
480{
481 struct wacom_features *features = &wacom->features;
482 unsigned char *data = wacom->data;
483 struct input_dev *input = wacom->pad_input;
484 int i;
485 int buttons = 0, nbuttons = features->numbered_buttons;
486 int keys = 0, nkeys = 0;
487 int ring1 = 0, ring2 = 0;
488 int strip1 = 0, strip2 = 0;
489 bool prox = false;
490
491 /* pad packets. Works as a second tool and is always in prox */
492 if (!(data[0] == WACOM_REPORT_INTUOSPAD || data[0] == WACOM_REPORT_INTUOS5PAD ||
493 data[0] == WACOM_REPORT_CINTIQPAD))
494 return 0;
495
496 if (features->type >= INTUOS4S && features->type <= INTUOS4L) {
497 buttons = (data[3] << 1) | (data[2] & 0x01);
498 ring1 = data[1];
499 } else if (features->type == DTK) {
500 buttons = data[6];
501 } else if (features->type == WACOM_13HD) {
502 buttons = (data[4] << 1) | (data[3] & 0x01);
503 } else if (features->type == WACOM_24HD) {
504 buttons = (data[8] << 8) | data[6];
505 ring1 = data[1];
506 ring2 = data[2];
507
508 /*
509 * Three "buttons" are available on the 24HD which are
510 * physically implemented as a touchstrip. Each button
511 * is approximately 3 bits wide with a 2 bit spacing.
512 * The raw touchstrip bits are stored at:
513 * ((data[3] & 0x1f) << 8) | data[4])
514 */
515 nkeys = 3;
516 keys = ((data[3] & 0x1C) ? 1<<2 : 0) |
517 ((data[4] & 0xE0) ? 1<<1 : 0) |
518 ((data[4] & 0x07) ? 1<<0 : 0);
519 } else if (features->type == WACOM_27QHD) {
520 nkeys = 3;
521 keys = data[2] & 0x07;
522
523 input_report_abs(input, ABS_X, be16_to_cpup((__be16 *)&data[4]));
524 input_report_abs(input, ABS_Y, be16_to_cpup((__be16 *)&data[6]));
525 input_report_abs(input, ABS_Z, be16_to_cpup((__be16 *)&data[8]));
526 } else if (features->type == CINTIQ_HYBRID) {
527 /*
528 * Do not send hardware buttons under Android. They
529 * are already sent to the system through GPIO (and
530 * have different meaning).
531 *
532 * d-pad right -> data[4] & 0x10
533 * d-pad up -> data[4] & 0x20
534 * d-pad left -> data[4] & 0x40
535 * d-pad down -> data[4] & 0x80
536 * d-pad center -> data[3] & 0x01
537 */
538 buttons = (data[4] << 1) | (data[3] & 0x01);
539 } else if (features->type == CINTIQ_COMPANION_2) {
540 /* d-pad right -> data[4] & 0x10
541 * d-pad up -> data[4] & 0x20
542 * d-pad left -> data[4] & 0x40
543 * d-pad down -> data[4] & 0x80
544 * d-pad center -> data[3] & 0x01
545 */
546 buttons = ((data[2] >> 4) << 7) |
547 ((data[1] & 0x04) << 6) |
548 ((data[2] & 0x0F) << 2) |
549 (data[1] & 0x03);
550 } else if (features->type >= INTUOS5S && features->type <= INTUOSPL) {
551 /*
552 * ExpressKeys on Intuos5/Intuos Pro have a capacitive sensor in
553 * addition to the mechanical switch. Switch data is
554 * stored in data[4], capacitive data in data[5].
555 *
556 * Touch ring mode switch (data[3]) has no capacitive sensor
557 */
558 buttons = (data[4] << 1) | (data[3] & 0x01);
559 ring1 = data[2];
560 } else {
561 if (features->type == WACOM_21UX2 || features->type == WACOM_22HD) {
562 buttons = (data[8] << 10) | ((data[7] & 0x01) << 9) |
563 (data[6] << 1) | (data[5] & 0x01);
564
565 if (features->type == WACOM_22HD) {
566 nkeys = 3;
567 keys = data[9] & 0x07;
568 }
569 } else {
570 buttons = ((data[6] & 0x10) << 5) |
571 ((data[5] & 0x10) << 4) |
572 ((data[6] & 0x0F) << 4) |
573 (data[5] & 0x0F);
574 }
575 strip1 = ((data[1] & 0x1f) << 8) | data[2];
576 strip2 = ((data[3] & 0x1f) << 8) | data[4];
577 }
578
579 prox = (buttons & ~(~0 << nbuttons)) | (keys & ~(~0 << nkeys)) |
580 (ring1 & 0x80) | (ring2 & 0x80) | strip1 | strip2;
581
582 wacom_report_numbered_buttons(input, nbuttons, buttons);
583
584 for (i = 0; i < nkeys; i++)
585 input_report_key(input, KEY_PROG1 + i, keys & (1 << i));
586
587 input_report_abs(input, ABS_RX, strip1);
588 input_report_abs(input, ABS_RY, strip2);
589
590 input_report_abs(input, ABS_WHEEL, (ring1 & 0x80) ? (ring1 & 0x7f) : 0);
591 input_report_abs(input, ABS_THROTTLE, (ring2 & 0x80) ? (ring2 & 0x7f) : 0);
592
593 input_report_key(input, wacom->tool[1], prox ? 1 : 0);
594 input_report_abs(input, ABS_MISC, prox ? PAD_DEVICE_ID : 0);
595
596 input_event(input, EV_MSC, MSC_SERIAL, 0xffffffff);
597
598 return 1;
599}
600
601static int wacom_intuos_id_mangle(int tool_id)
602{
603 return (tool_id & ~0xFFF) << 4 | (tool_id & 0xFFF);
604}
605
606static int wacom_intuos_get_tool_type(int tool_id)
607{
608 int tool_type;
609
610 switch (tool_id) {
611 case 0x812: /* Inking pen */
612 case 0x801: /* Intuos3 Inking pen */
613 case 0x12802: /* Intuos4/5 Inking Pen */
614 case 0x012:
615 tool_type = BTN_TOOL_PENCIL;
616 break;
617
618 case 0x822: /* Pen */
619 case 0x842:
620 case 0x852:
621 case 0x823: /* Intuos3 Grip Pen */
622 case 0x813: /* Intuos3 Classic Pen */
623 case 0x885: /* Intuos3 Marker Pen */
624 case 0x802: /* Intuos4/5 13HD/24HD General Pen */
625 case 0x804: /* Intuos4/5 13HD/24HD Marker Pen */
626 case 0x8e2: /* IntuosHT2 pen */
627 case 0x022:
628 case 0x10804: /* Intuos4/5 13HD/24HD Art Pen */
629 case 0x10842: /* MobileStudio Pro Pro Pen slim */
630 case 0x14802: /* Intuos4/5 13HD/24HD Classic Pen */
631 case 0x16802: /* Cintiq 13HD Pro Pen */
632 case 0x18802: /* DTH2242 Pen */
633 case 0x10802: /* Intuos4/5 13HD/24HD General Pen */
634 tool_type = BTN_TOOL_PEN;
635 break;
636
637 case 0x832: /* Stroke pen */
638 case 0x032:
639 tool_type = BTN_TOOL_BRUSH;
640 break;
641
642 case 0x007: /* Mouse 4D and 2D */
643 case 0x09c:
644 case 0x094:
645 case 0x017: /* Intuos3 2D Mouse */
646 case 0x806: /* Intuos4 Mouse */
647 tool_type = BTN_TOOL_MOUSE;
648 break;
649
650 case 0x096: /* Lens cursor */
651 case 0x097: /* Intuos3 Lens cursor */
652 case 0x006: /* Intuos4 Lens cursor */
653 tool_type = BTN_TOOL_LENS;
654 break;
655
656 case 0x82a: /* Eraser */
657 case 0x84a:
658 case 0x85a:
659 case 0x91a:
660 case 0xd1a:
661 case 0x0fa:
662 case 0x82b: /* Intuos3 Grip Pen Eraser */
663 case 0x81b: /* Intuos3 Classic Pen Eraser */
664 case 0x91b: /* Intuos3 Airbrush Eraser */
665 case 0x80c: /* Intuos4/5 13HD/24HD Marker Pen Eraser */
666 case 0x80a: /* Intuos4/5 13HD/24HD General Pen Eraser */
667 case 0x90a: /* Intuos4/5 13HD/24HD Airbrush Eraser */
668 case 0x1480a: /* Intuos4/5 13HD/24HD Classic Pen Eraser */
669 case 0x1090a: /* Intuos4/5 13HD/24HD Airbrush Eraser */
670 case 0x1080c: /* Intuos4/5 13HD/24HD Art Pen Eraser */
671 case 0x1084a: /* MobileStudio Pro Pro Pen slim Eraser */
672 case 0x1680a: /* Cintiq 13HD Pro Pen Eraser */
673 case 0x1880a: /* DTH2242 Eraser */
674 case 0x1080a: /* Intuos4/5 13HD/24HD General Pen Eraser */
675 tool_type = BTN_TOOL_RUBBER;
676 break;
677
678 case 0xd12:
679 case 0x912:
680 case 0x112:
681 case 0x913: /* Intuos3 Airbrush */
682 case 0x902: /* Intuos4/5 13HD/24HD Airbrush */
683 case 0x10902: /* Intuos4/5 13HD/24HD Airbrush */
684 tool_type = BTN_TOOL_AIRBRUSH;
685 break;
686
687 default: /* Unknown tool */
688 tool_type = BTN_TOOL_PEN;
689 break;
690 }
691 return tool_type;
692}
693
694static void wacom_exit_report(struct wacom_wac *wacom)
695{
696 struct input_dev *input = wacom->pen_input;
697 struct wacom_features *features = &wacom->features;
698 unsigned char *data = wacom->data;
699 int idx = (features->type == INTUOS) ? (data[1] & 0x01) : 0;
700
701 /*
702 * Reset all states otherwise we lose the initial states
703 * when in-prox next time
704 */
705 input_report_abs(input, ABS_X, 0);
706 input_report_abs(input, ABS_Y, 0);
707 input_report_abs(input, ABS_DISTANCE, 0);
708 input_report_abs(input, ABS_TILT_X, 0);
709 input_report_abs(input, ABS_TILT_Y, 0);
710 if (wacom->tool[idx] >= BTN_TOOL_MOUSE) {
711 input_report_key(input, BTN_LEFT, 0);
712 input_report_key(input, BTN_MIDDLE, 0);
713 input_report_key(input, BTN_RIGHT, 0);
714 input_report_key(input, BTN_SIDE, 0);
715 input_report_key(input, BTN_EXTRA, 0);
716 input_report_abs(input, ABS_THROTTLE, 0);
717 input_report_abs(input, ABS_RZ, 0);
718 } else {
719 input_report_abs(input, ABS_PRESSURE, 0);
720 input_report_key(input, BTN_STYLUS, 0);
721 input_report_key(input, BTN_STYLUS2, 0);
722 input_report_key(input, BTN_TOUCH, 0);
723 input_report_abs(input, ABS_WHEEL, 0);
724 if (features->type >= INTUOS3S)
725 input_report_abs(input, ABS_Z, 0);
726 }
727 input_report_key(input, wacom->tool[idx], 0);
728 input_report_abs(input, ABS_MISC, 0); /* reset tool id */
729 input_event(input, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
730 wacom->id[idx] = 0;
731}
732
733static int wacom_intuos_inout(struct wacom_wac *wacom)
734{
735 struct wacom_features *features = &wacom->features;
736 unsigned char *data = wacom->data;
737 struct input_dev *input = wacom->pen_input;
738 int idx = (features->type == INTUOS) ? (data[1] & 0x01) : 0;
739
740 if (!(((data[1] & 0xfc) == 0xc0) || /* in prox */
741 ((data[1] & 0xfe) == 0x20) || /* in range */
742 ((data[1] & 0xfe) == 0x80))) /* out prox */
743 return 0;
744
745 /* Enter report */
746 if ((data[1] & 0xfc) == 0xc0) {
747 /* serial number of the tool */
748 wacom->serial[idx] = ((data[3] & 0x0f) << 28) +
749 (data[4] << 20) + (data[5] << 12) +
750 (data[6] << 4) + (data[7] >> 4);
751
752 wacom->id[idx] = (data[2] << 4) | (data[3] >> 4) |
753 ((data[7] & 0x0f) << 16) | ((data[8] & 0xf0) << 8);
754
755 wacom->tool[idx] = wacom_intuos_get_tool_type(wacom->id[idx]);
756
757 wacom->shared->stylus_in_proximity = true;
758 return 1;
759 }
760
761 /* in Range */
762 if ((data[1] & 0xfe) == 0x20) {
763 if (features->type != INTUOSHT2)
764 wacom->shared->stylus_in_proximity = true;
765
766 /* in Range while exiting */
767 if (wacom->reporting_data) {
768 input_report_key(input, BTN_TOUCH, 0);
769 input_report_abs(input, ABS_PRESSURE, 0);
770 input_report_abs(input, ABS_DISTANCE, wacom->features.distance_max);
771 return 2;
772 }
773 return 1;
774 }
775
776 /* Exit report */
777 if ((data[1] & 0xfe) == 0x80) {
778 wacom->shared->stylus_in_proximity = false;
779 wacom->reporting_data = false;
780
781 /* don't report exit if we don't know the ID */
782 if (!wacom->id[idx])
783 return 1;
784
785 wacom_exit_report(wacom);
786 return 2;
787 }
788
789 return 0;
790}
791
792static inline bool report_touch_events(struct wacom_wac *wacom)
793{
794 return (touch_arbitration ? !wacom->shared->stylus_in_proximity : 1);
795}
796
797static inline bool delay_pen_events(struct wacom_wac *wacom)
798{
799 return (wacom->shared->touch_down && touch_arbitration);
800}
801
802static int wacom_intuos_general(struct wacom_wac *wacom)
803{
804 struct wacom_features *features = &wacom->features;
805 unsigned char *data = wacom->data;
806 struct input_dev *input = wacom->pen_input;
807 int idx = (features->type == INTUOS) ? (data[1] & 0x01) : 0;
808 unsigned char type = (data[1] >> 1) & 0x0F;
809 unsigned int x, y, distance, t;
810
811 if (data[0] != WACOM_REPORT_PENABLED && data[0] != WACOM_REPORT_CINTIQ &&
812 data[0] != WACOM_REPORT_INTUOS_PEN)
813 return 0;
814
815 if (delay_pen_events(wacom))
816 return 1;
817
818 /* don't report events if we don't know the tool ID */
819 if (!wacom->id[idx]) {
820 /* but reschedule a read of the current tool */
821 wacom_intuos_schedule_prox_event(wacom);
822 return 1;
823 }
824
825 /*
826 * don't report events for invalid data
827 */
828 /* older I4 styli don't work with new Cintiqs */
829 if ((!((wacom->id[idx] >> 16) & 0x01) &&
830 (features->type == WACOM_21UX2)) ||
831 /* Only large Intuos support Lense Cursor */
832 (wacom->tool[idx] == BTN_TOOL_LENS &&
833 (features->type == INTUOS3 ||
834 features->type == INTUOS3S ||
835 features->type == INTUOS4 ||
836 features->type == INTUOS4S ||
837 features->type == INTUOS5 ||
838 features->type == INTUOS5S ||
839 features->type == INTUOSPM ||
840 features->type == INTUOSPS)) ||
841 /* Cintiq doesn't send data when RDY bit isn't set */
842 (features->type == CINTIQ && !(data[1] & 0x40)))
843 return 1;
844
845 x = (be16_to_cpup((__be16 *)&data[2]) << 1) | ((data[9] >> 1) & 1);
846 y = (be16_to_cpup((__be16 *)&data[4]) << 1) | (data[9] & 1);
847 distance = data[9] >> 2;
848 if (features->type < INTUOS3S) {
849 x >>= 1;
850 y >>= 1;
851 distance >>= 1;
852 }
853 input_report_abs(input, ABS_X, x);
854 input_report_abs(input, ABS_Y, y);
855 input_report_abs(input, ABS_DISTANCE, distance);
856
857 switch (type) {
858 case 0x00:
859 case 0x01:
860 case 0x02:
861 case 0x03:
862 /* general pen packet */
863 t = (data[6] << 3) | ((data[7] & 0xC0) >> 5) | (data[1] & 1);
864 if (features->pressure_max < 2047)
865 t >>= 1;
866 input_report_abs(input, ABS_PRESSURE, t);
867 if (features->type != INTUOSHT2) {
868 input_report_abs(input, ABS_TILT_X,
869 (((data[7] << 1) & 0x7e) | (data[8] >> 7)) - 64);
870 input_report_abs(input, ABS_TILT_Y, (data[8] & 0x7f) - 64);
871 }
872 input_report_key(input, BTN_STYLUS, data[1] & 2);
873 input_report_key(input, BTN_STYLUS2, data[1] & 4);
874 input_report_key(input, BTN_TOUCH, t > 10);
875 break;
876
877 case 0x0a:
878 /* airbrush second packet */
879 input_report_abs(input, ABS_WHEEL,
880 (data[6] << 2) | ((data[7] >> 6) & 3));
881 input_report_abs(input, ABS_TILT_X,
882 (((data[7] << 1) & 0x7e) | (data[8] >> 7)) - 64);
883 input_report_abs(input, ABS_TILT_Y, (data[8] & 0x7f) - 64);
884 break;
885
886 case 0x05:
887 /* Rotation packet */
888 if (features->type >= INTUOS3S) {
889 /* I3 marker pen rotation */
890 t = (data[6] << 3) | ((data[7] >> 5) & 7);
891 t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) :
892 ((t-1) / 2 + 450)) : (450 - t / 2) ;
893 input_report_abs(input, ABS_Z, t);
894 } else {
895 /* 4D mouse 2nd packet */
896 t = (data[6] << 3) | ((data[7] >> 5) & 7);
897 input_report_abs(input, ABS_RZ, (data[7] & 0x20) ?
898 ((t - 1) / 2) : -t / 2);
899 }
900 break;
901
902 case 0x04:
903 /* 4D mouse 1st packet */
904 input_report_key(input, BTN_LEFT, data[8] & 0x01);
905 input_report_key(input, BTN_MIDDLE, data[8] & 0x02);
906 input_report_key(input, BTN_RIGHT, data[8] & 0x04);
907
908 input_report_key(input, BTN_SIDE, data[8] & 0x20);
909 input_report_key(input, BTN_EXTRA, data[8] & 0x10);
910 t = (data[6] << 2) | ((data[7] >> 6) & 3);
911 input_report_abs(input, ABS_THROTTLE, (data[8] & 0x08) ? -t : t);
912 break;
913
914 case 0x06:
915 /* I4 mouse */
916 input_report_key(input, BTN_LEFT, data[6] & 0x01);
917 input_report_key(input, BTN_MIDDLE, data[6] & 0x02);
918 input_report_key(input, BTN_RIGHT, data[6] & 0x04);
919 input_report_rel(input, REL_WHEEL, ((data[7] & 0x80) >> 7)
920 - ((data[7] & 0x40) >> 6));
921 input_report_key(input, BTN_SIDE, data[6] & 0x08);
922 input_report_key(input, BTN_EXTRA, data[6] & 0x10);
923
924 input_report_abs(input, ABS_TILT_X,
925 (((data[7] << 1) & 0x7e) | (data[8] >> 7)) - 64);
926 input_report_abs(input, ABS_TILT_Y, (data[8] & 0x7f) - 64);
927 break;
928
929 case 0x08:
930 if (wacom->tool[idx] == BTN_TOOL_MOUSE) {
931 /* 2D mouse packet */
932 input_report_key(input, BTN_LEFT, data[8] & 0x04);
933 input_report_key(input, BTN_MIDDLE, data[8] & 0x08);
934 input_report_key(input, BTN_RIGHT, data[8] & 0x10);
935 input_report_rel(input, REL_WHEEL, (data[8] & 0x01)
936 - ((data[8] & 0x02) >> 1));
937
938 /* I3 2D mouse side buttons */
939 if (features->type >= INTUOS3S && features->type <= INTUOS3L) {
940 input_report_key(input, BTN_SIDE, data[8] & 0x40);
941 input_report_key(input, BTN_EXTRA, data[8] & 0x20);
942 }
943 }
944 else if (wacom->tool[idx] == BTN_TOOL_LENS) {
945 /* Lens cursor packets */
946 input_report_key(input, BTN_LEFT, data[8] & 0x01);
947 input_report_key(input, BTN_MIDDLE, data[8] & 0x02);
948 input_report_key(input, BTN_RIGHT, data[8] & 0x04);
949 input_report_key(input, BTN_SIDE, data[8] & 0x10);
950 input_report_key(input, BTN_EXTRA, data[8] & 0x08);
951 }
952 break;
953
954 case 0x07:
955 case 0x09:
956 case 0x0b:
957 case 0x0c:
958 case 0x0d:
959 case 0x0e:
960 case 0x0f:
961 /* unhandled */
962 break;
963 }
964
965 input_report_abs(input, ABS_MISC,
966 wacom_intuos_id_mangle(wacom->id[idx])); /* report tool id */
967 input_report_key(input, wacom->tool[idx], 1);
968 input_event(input, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
969 wacom->reporting_data = true;
970 return 2;
971}
972
973static int wacom_intuos_irq(struct wacom_wac *wacom)
974{
975 unsigned char *data = wacom->data;
976 struct input_dev *input = wacom->pen_input;
977 int result;
978
979 if (data[0] != WACOM_REPORT_PENABLED &&
980 data[0] != WACOM_REPORT_INTUOS_ID1 &&
981 data[0] != WACOM_REPORT_INTUOS_ID2 &&
982 data[0] != WACOM_REPORT_INTUOSPAD &&
983 data[0] != WACOM_REPORT_INTUOS_PEN &&
984 data[0] != WACOM_REPORT_CINTIQ &&
985 data[0] != WACOM_REPORT_CINTIQPAD &&
986 data[0] != WACOM_REPORT_INTUOS5PAD) {
987 dev_dbg(input->dev.parent,
988 "%s: received unknown report #%d\n", __func__, data[0]);
989 return 0;
990 }
991
992 /* process pad events */
993 result = wacom_intuos_pad(wacom);
994 if (result)
995 return result;
996
997 /* process in/out prox events */
998 result = wacom_intuos_inout(wacom);
999 if (result)
1000 return result - 1;
1001
1002 /* process general packets */
1003 result = wacom_intuos_general(wacom);
1004 if (result)
1005 return result - 1;
1006
1007 return 0;
1008}
1009
1010static int wacom_remote_irq(struct wacom_wac *wacom_wac, size_t len)
1011{
1012 unsigned char *data = wacom_wac->data;
1013 struct input_dev *input;
1014 struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
1015 struct wacom_remote *remote = wacom->remote;
1016 int bat_charging, bat_percent, touch_ring_mode;
1017 __u32 serial;
1018 int i, index = -1;
1019 unsigned long flags;
1020
1021 if (data[0] != WACOM_REPORT_REMOTE) {
1022 hid_dbg(wacom->hdev, "%s: received unknown report #%d",
1023 __func__, data[0]);
1024 return 0;
1025 }
1026
1027 serial = data[3] + (data[4] << 8) + (data[5] << 16);
1028 wacom_wac->id[0] = PAD_DEVICE_ID;
1029
1030 spin_lock_irqsave(&remote->remote_lock, flags);
1031
1032 for (i = 0; i < WACOM_MAX_REMOTES; i++) {
1033 if (remote->remotes[i].serial == serial) {
1034 index = i;
1035 break;
1036 }
1037 }
1038
1039 if (index < 0 || !remote->remotes[index].registered)
1040 goto out;
1041
1042 input = remote->remotes[index].input;
1043
1044 input_report_key(input, BTN_0, (data[9] & 0x01));
1045 input_report_key(input, BTN_1, (data[9] & 0x02));
1046 input_report_key(input, BTN_2, (data[9] & 0x04));
1047 input_report_key(input, BTN_3, (data[9] & 0x08));
1048 input_report_key(input, BTN_4, (data[9] & 0x10));
1049 input_report_key(input, BTN_5, (data[9] & 0x20));
1050 input_report_key(input, BTN_6, (data[9] & 0x40));
1051 input_report_key(input, BTN_7, (data[9] & 0x80));
1052
1053 input_report_key(input, BTN_8, (data[10] & 0x01));
1054 input_report_key(input, BTN_9, (data[10] & 0x02));
1055 input_report_key(input, BTN_A, (data[10] & 0x04));
1056 input_report_key(input, BTN_B, (data[10] & 0x08));
1057 input_report_key(input, BTN_C, (data[10] & 0x10));
1058 input_report_key(input, BTN_X, (data[10] & 0x20));
1059 input_report_key(input, BTN_Y, (data[10] & 0x40));
1060 input_report_key(input, BTN_Z, (data[10] & 0x80));
1061
1062 input_report_key(input, BTN_BASE, (data[11] & 0x01));
1063 input_report_key(input, BTN_BASE2, (data[11] & 0x02));
1064
1065 if (data[12] & 0x80)
1066 input_report_abs(input, ABS_WHEEL, (data[12] & 0x7f));
1067 else
1068 input_report_abs(input, ABS_WHEEL, 0);
1069
1070 bat_percent = data[7] & 0x7f;
1071 bat_charging = !!(data[7] & 0x80);
1072
1073 if (data[9] | data[10] | (data[11] & 0x03) | data[12])
1074 input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
1075 else
1076 input_report_abs(input, ABS_MISC, 0);
1077
1078 input_event(input, EV_MSC, MSC_SERIAL, serial);
1079
1080 input_sync(input);
1081
1082 /*Which mode select (LED light) is currently on?*/
1083 touch_ring_mode = (data[11] & 0xC0) >> 6;
1084
1085 for (i = 0; i < WACOM_MAX_REMOTES; i++) {
1086 if (remote->remotes[i].serial == serial)
1087 wacom->led.groups[i].select = touch_ring_mode;
1088 }
1089
1090 __wacom_notify_battery(&remote->remotes[index].battery,
1091 WACOM_POWER_SUPPLY_STATUS_AUTO, bat_percent,
1092 bat_charging, 1, bat_charging);
1093
1094out:
1095 spin_unlock_irqrestore(&remote->remote_lock, flags);
1096 return 0;
1097}
1098
1099static void wacom_remote_status_irq(struct wacom_wac *wacom_wac, size_t len)
1100{
1101 struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
1102 unsigned char *data = wacom_wac->data;
1103 struct wacom_remote *remote = wacom->remote;
1104 struct wacom_remote_data remote_data;
1105 unsigned long flags;
1106 int i, ret;
1107
1108 if (data[0] != WACOM_REPORT_DEVICE_LIST)
1109 return;
1110
1111 memset(&remote_data, 0, sizeof(struct wacom_remote_data));
1112
1113 for (i = 0; i < WACOM_MAX_REMOTES; i++) {
1114 int j = i * 6;
1115 int serial = (data[j+6] << 16) + (data[j+5] << 8) + data[j+4];
1116 bool connected = data[j+2];
1117
1118 remote_data.remote[i].serial = serial;
1119 remote_data.remote[i].connected = connected;
1120 }
1121
1122 spin_lock_irqsave(&remote->remote_lock, flags);
1123
1124 ret = kfifo_in(&remote->remote_fifo, &remote_data, sizeof(remote_data));
1125 if (ret != sizeof(remote_data)) {
1126 spin_unlock_irqrestore(&remote->remote_lock, flags);
1127 hid_err(wacom->hdev, "Can't queue Remote status event.\n");
1128 return;
1129 }
1130
1131 spin_unlock_irqrestore(&remote->remote_lock, flags);
1132
1133 wacom_schedule_work(wacom_wac, WACOM_WORKER_REMOTE);
1134}
1135
1136static int int_dist(int x1, int y1, int x2, int y2)
1137{
1138 int x = x2 - x1;
1139 int y = y2 - y1;
1140
1141 return int_sqrt(x*x + y*y);
1142}
1143
1144static void wacom_intuos_bt_process_data(struct wacom_wac *wacom,
1145 unsigned char *data)
1146{
1147 memcpy(wacom->data, data, 10);
1148 wacom_intuos_irq(wacom);
1149
1150 input_sync(wacom->pen_input);
1151 if (wacom->pad_input)
1152 input_sync(wacom->pad_input);
1153}
1154
1155static int wacom_intuos_bt_irq(struct wacom_wac *wacom, size_t len)
1156{
1157 unsigned char data[WACOM_PKGLEN_MAX];
1158 int i = 1;
1159 unsigned power_raw, battery_capacity, bat_charging, ps_connected;
1160
1161 memcpy(data, wacom->data, len);
1162
1163 switch (data[0]) {
1164 case 0x04:
1165 wacom_intuos_bt_process_data(wacom, data + i);
1166 i += 10;
1167 /* fall through */
1168 case 0x03:
1169 wacom_intuos_bt_process_data(wacom, data + i);
1170 i += 10;
1171 wacom_intuos_bt_process_data(wacom, data + i);
1172 i += 10;
1173 power_raw = data[i];
1174 bat_charging = (power_raw & 0x08) ? 1 : 0;
1175 ps_connected = (power_raw & 0x10) ? 1 : 0;
1176 battery_capacity = batcap_i4[power_raw & 0x07];
1177 wacom_notify_battery(wacom, WACOM_POWER_SUPPLY_STATUS_AUTO,
1178 battery_capacity, bat_charging,
1179 battery_capacity || bat_charging,
1180 ps_connected);
1181 break;
1182 default:
1183 dev_dbg(wacom->pen_input->dev.parent,
1184 "Unknown report: %d,%d size:%zu\n",
1185 data[0], data[1], len);
1186 return 0;
1187 }
1188 return 0;
1189}
1190
1191static int wacom_wac_finger_count_touches(struct wacom_wac *wacom)
1192{
1193 struct input_dev *input = wacom->touch_input;
1194 unsigned touch_max = wacom->features.touch_max;
1195 int count = 0;
1196 int i;
1197
1198 if (!touch_max)
1199 return 0;
1200
1201 if (touch_max == 1)
1202 return test_bit(BTN_TOUCH, input->key) &&
1203 report_touch_events(wacom);
1204
1205 for (i = 0; i < input->mt->num_slots; i++) {
1206 struct input_mt_slot *ps = &input->mt->slots[i];
1207 int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID);
1208 if (id >= 0)
1209 count++;
1210 }
1211
1212 return count;
1213}
1214
1215static void wacom_intuos_pro2_bt_pen(struct wacom_wac *wacom)
1216{
1217 int pen_frame_len, pen_frames;
1218
1219 struct input_dev *pen_input = wacom->pen_input;
1220 unsigned char *data = wacom->data;
1221 int i;
1222
1223 if (wacom->features.type == INTUOSP2_BT) {
1224 wacom->serial[0] = get_unaligned_le64(&data[99]);
1225 wacom->id[0] = get_unaligned_le16(&data[107]);
1226 pen_frame_len = 14;
1227 pen_frames = 7;
1228 } else {
1229 wacom->serial[0] = get_unaligned_le64(&data[33]);
1230 wacom->id[0] = get_unaligned_le16(&data[41]);
1231 pen_frame_len = 8;
1232 pen_frames = 4;
1233 }
1234
1235 if (wacom->serial[0] >> 52 == 1) {
1236 /* Add back in missing bits of ID for non-USI pens */
1237 wacom->id[0] |= (wacom->serial[0] >> 32) & 0xFFFFF;
1238 }
1239 wacom->tool[0] = wacom_intuos_get_tool_type(wacom_intuos_id_mangle(wacom->id[0]));
1240
1241 for (i = 0; i < pen_frames; i++) {
1242 unsigned char *frame = &data[i*pen_frame_len + 1];
1243 bool valid = frame[0] & 0x80;
1244 bool prox = frame[0] & 0x40;
1245 bool range = frame[0] & 0x20;
1246
1247 if (!valid)
1248 continue;
1249
1250 if (!prox) {
1251 wacom->shared->stylus_in_proximity = false;
1252 wacom_exit_report(wacom);
1253 input_sync(pen_input);
1254 return;
1255 }
1256 if (range) {
1257 input_report_abs(pen_input, ABS_X, get_unaligned_le16(&frame[1]));
1258 input_report_abs(pen_input, ABS_Y, get_unaligned_le16(&frame[3]));
1259
1260 if (wacom->features.type == INTUOSP2_BT) {
1261 /* Fix rotation alignment: userspace expects zero at left */
1262 int16_t rotation =
1263 (int16_t)get_unaligned_le16(&frame[9]);
1264 rotation += 1800/4;
1265
1266 if (rotation > 899)
1267 rotation -= 1800;
1268
1269 input_report_abs(pen_input, ABS_TILT_X,
1270 (char)frame[7]);
1271 input_report_abs(pen_input, ABS_TILT_Y,
1272 (char)frame[8]);
1273 input_report_abs(pen_input, ABS_Z, rotation);
1274 input_report_abs(pen_input, ABS_WHEEL,
1275 get_unaligned_le16(&frame[11]));
1276 }
1277 }
1278 input_report_abs(pen_input, ABS_PRESSURE, get_unaligned_le16(&frame[5]));
1279 if (wacom->features.type == INTUOSP2_BT) {
1280 input_report_abs(pen_input, ABS_DISTANCE,
1281 range ? frame[13] : wacom->features.distance_max);
1282 } else {
1283 input_report_abs(pen_input, ABS_DISTANCE,
1284 range ? frame[7] : wacom->features.distance_max);
1285 }
1286
1287 input_report_key(pen_input, BTN_TOUCH, frame[0] & 0x01);
1288 input_report_key(pen_input, BTN_STYLUS, frame[0] & 0x02);
1289 input_report_key(pen_input, BTN_STYLUS2, frame[0] & 0x04);
1290
1291 input_report_key(pen_input, wacom->tool[0], prox);
1292 input_event(pen_input, EV_MSC, MSC_SERIAL, wacom->serial[0]);
1293 input_report_abs(pen_input, ABS_MISC,
1294 wacom_intuos_id_mangle(wacom->id[0])); /* report tool id */
1295
1296 wacom->shared->stylus_in_proximity = prox;
1297
1298 input_sync(pen_input);
1299 }
1300}
1301
1302static void wacom_intuos_pro2_bt_touch(struct wacom_wac *wacom)
1303{
1304 const int finger_touch_len = 8;
1305 const int finger_frames = 4;
1306 const int finger_frame_len = 43;
1307
1308 struct input_dev *touch_input = wacom->touch_input;
1309 unsigned char *data = wacom->data;
1310 int num_contacts_left = 5;
1311 int i, j;
1312
1313 for (i = 0; i < finger_frames; i++) {
1314 unsigned char *frame = &data[i*finger_frame_len + 109];
1315 int current_num_contacts = frame[0] & 0x7F;
1316 int contacts_to_send;
1317
1318 if (!(frame[0] & 0x80))
1319 continue;
1320
1321 /*
1322 * First packet resets the counter since only the first
1323 * packet in series will have non-zero current_num_contacts.
1324 */
1325 if (current_num_contacts)
1326 wacom->num_contacts_left = current_num_contacts;
1327
1328 contacts_to_send = min(num_contacts_left, wacom->num_contacts_left);
1329
1330 for (j = 0; j < contacts_to_send; j++) {
1331 unsigned char *touch = &frame[j*finger_touch_len + 1];
1332 int slot = input_mt_get_slot_by_key(touch_input, touch[0]);
1333 int x = get_unaligned_le16(&touch[2]);
1334 int y = get_unaligned_le16(&touch[4]);
1335 int w = touch[6] * input_abs_get_res(touch_input, ABS_MT_POSITION_X);
1336 int h = touch[7] * input_abs_get_res(touch_input, ABS_MT_POSITION_Y);
1337
1338 if (slot < 0)
1339 continue;
1340
1341 input_mt_slot(touch_input, slot);
1342 input_mt_report_slot_state(touch_input, MT_TOOL_FINGER, touch[1] & 0x01);
1343 input_report_abs(touch_input, ABS_MT_POSITION_X, x);
1344 input_report_abs(touch_input, ABS_MT_POSITION_Y, y);
1345 input_report_abs(touch_input, ABS_MT_TOUCH_MAJOR, max(w, h));
1346 input_report_abs(touch_input, ABS_MT_TOUCH_MINOR, min(w, h));
1347 input_report_abs(touch_input, ABS_MT_ORIENTATION, w > h);
1348 }
1349
1350 input_mt_sync_frame(touch_input);
1351
1352 wacom->num_contacts_left -= contacts_to_send;
1353 if (wacom->num_contacts_left <= 0) {
1354 wacom->num_contacts_left = 0;
1355 wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
1356 }
1357 }
1358
1359 input_report_switch(touch_input, SW_MUTE_DEVICE, !(data[281] >> 7));
1360 input_sync(touch_input);
1361}
1362
1363static void wacom_intuos_pro2_bt_pad(struct wacom_wac *wacom)
1364{
1365 struct input_dev *pad_input = wacom->pad_input;
1366 unsigned char *data = wacom->data;
1367
1368 int buttons = (data[282] << 1) | ((data[281] >> 6) & 0x01);
1369 int ring = data[285] & 0x7F;
1370 bool ringstatus = data[285] & 0x80;
1371 bool prox = buttons || ringstatus;
1372
1373 /* Fix touchring data: userspace expects 0 at left and increasing clockwise */
1374 ring = 71 - ring;
1375 ring += 3*72/16;
1376 if (ring > 71)
1377 ring -= 72;
1378
1379 wacom_report_numbered_buttons(pad_input, 9, buttons);
1380
1381 input_report_abs(pad_input, ABS_WHEEL, ringstatus ? ring : 0);
1382
1383 input_report_key(pad_input, wacom->tool[1], prox ? 1 : 0);
1384 input_report_abs(pad_input, ABS_MISC, prox ? PAD_DEVICE_ID : 0);
1385 input_event(pad_input, EV_MSC, MSC_SERIAL, 0xffffffff);
1386
1387 input_sync(pad_input);
1388}
1389
1390static void wacom_intuos_pro2_bt_battery(struct wacom_wac *wacom)
1391{
1392 unsigned char *data = wacom->data;
1393
1394 bool chg = data[284] & 0x80;
1395 int battery_status = data[284] & 0x7F;
1396
1397 wacom_notify_battery(wacom, WACOM_POWER_SUPPLY_STATUS_AUTO,
1398 battery_status, chg, 1, chg);
1399}
1400
1401static void wacom_intuos_gen3_bt_pad(struct wacom_wac *wacom)
1402{
1403 struct input_dev *pad_input = wacom->pad_input;
1404 unsigned char *data = wacom->data;
1405
1406 int buttons = data[44];
1407
1408 wacom_report_numbered_buttons(pad_input, 4, buttons);
1409
1410 input_report_key(pad_input, wacom->tool[1], buttons ? 1 : 0);
1411 input_report_abs(pad_input, ABS_MISC, buttons ? PAD_DEVICE_ID : 0);
1412 input_event(pad_input, EV_MSC, MSC_SERIAL, 0xffffffff);
1413
1414 input_sync(pad_input);
1415}
1416
1417static void wacom_intuos_gen3_bt_battery(struct wacom_wac *wacom)
1418{
1419 unsigned char *data = wacom->data;
1420
1421 bool chg = data[45] & 0x80;
1422 int battery_status = data[45] & 0x7F;
1423
1424 wacom_notify_battery(wacom, WACOM_POWER_SUPPLY_STATUS_AUTO,
1425 battery_status, chg, 1, chg);
1426}
1427
1428static int wacom_intuos_pro2_bt_irq(struct wacom_wac *wacom, size_t len)
1429{
1430 unsigned char *data = wacom->data;
1431
1432 if (data[0] != 0x80 && data[0] != 0x81) {
1433 dev_dbg(wacom->pen_input->dev.parent,
1434 "%s: received unknown report #%d\n", __func__, data[0]);
1435 return 0;
1436 }
1437
1438 wacom_intuos_pro2_bt_pen(wacom);
1439 if (wacom->features.type == INTUOSP2_BT) {
1440 wacom_intuos_pro2_bt_touch(wacom);
1441 wacom_intuos_pro2_bt_pad(wacom);
1442 wacom_intuos_pro2_bt_battery(wacom);
1443 } else {
1444 wacom_intuos_gen3_bt_pad(wacom);
1445 wacom_intuos_gen3_bt_battery(wacom);
1446 }
1447 return 0;
1448}
1449
1450static int wacom_24hdt_irq(struct wacom_wac *wacom)
1451{
1452 struct input_dev *input = wacom->touch_input;
1453 unsigned char *data = wacom->data;
1454 int i;
1455 int current_num_contacts = data[61];
1456 int contacts_to_send = 0;
1457 int num_contacts_left = 4; /* maximum contacts per packet */
1458 int byte_per_packet = WACOM_BYTES_PER_24HDT_PACKET;
1459 int y_offset = 2;
1460
1461 if (wacom->features.type == WACOM_27QHDT) {
1462 current_num_contacts = data[63];
1463 num_contacts_left = 10;
1464 byte_per_packet = WACOM_BYTES_PER_QHDTHID_PACKET;
1465 y_offset = 0;
1466 }
1467
1468 /*
1469 * First packet resets the counter since only the first
1470 * packet in series will have non-zero current_num_contacts.
1471 */
1472 if (current_num_contacts)
1473 wacom->num_contacts_left = current_num_contacts;
1474
1475 contacts_to_send = min(num_contacts_left, wacom->num_contacts_left);
1476
1477 for (i = 0; i < contacts_to_send; i++) {
1478 int offset = (byte_per_packet * i) + 1;
1479 bool touch = (data[offset] & 0x1) && report_touch_events(wacom);
1480 int slot = input_mt_get_slot_by_key(input, data[offset + 1]);
1481
1482 if (slot < 0)
1483 continue;
1484 input_mt_slot(input, slot);
1485 input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
1486
1487 if (touch) {
1488 int t_x = get_unaligned_le16(&data[offset + 2]);
1489 int t_y = get_unaligned_le16(&data[offset + 4 + y_offset]);
1490
1491 input_report_abs(input, ABS_MT_POSITION_X, t_x);
1492 input_report_abs(input, ABS_MT_POSITION_Y, t_y);
1493
1494 if (wacom->features.type != WACOM_27QHDT) {
1495 int c_x = get_unaligned_le16(&data[offset + 4]);
1496 int c_y = get_unaligned_le16(&data[offset + 8]);
1497 int w = get_unaligned_le16(&data[offset + 10]);
1498 int h = get_unaligned_le16(&data[offset + 12]);
1499
1500 input_report_abs(input, ABS_MT_TOUCH_MAJOR, min(w,h));
1501 input_report_abs(input, ABS_MT_WIDTH_MAJOR,
1502 min(w, h) + int_dist(t_x, t_y, c_x, c_y));
1503 input_report_abs(input, ABS_MT_WIDTH_MINOR, min(w, h));
1504 input_report_abs(input, ABS_MT_ORIENTATION, w > h);
1505 }
1506 }
1507 }
1508 input_mt_sync_frame(input);
1509
1510 wacom->num_contacts_left -= contacts_to_send;
1511 if (wacom->num_contacts_left <= 0) {
1512 wacom->num_contacts_left = 0;
1513 wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
1514 }
1515 return 1;
1516}
1517
1518static int wacom_mt_touch(struct wacom_wac *wacom)
1519{
1520 struct input_dev *input = wacom->touch_input;
1521 unsigned char *data = wacom->data;
1522 int i;
1523 int current_num_contacts = data[2];
1524 int contacts_to_send = 0;
1525 int x_offset = 0;
1526
1527 /* MTTPC does not support Height and Width */
1528 if (wacom->features.type == MTTPC || wacom->features.type == MTTPC_B)
1529 x_offset = -4;
1530
1531 /*
1532 * First packet resets the counter since only the first
1533 * packet in series will have non-zero current_num_contacts.
1534 */
1535 if (current_num_contacts)
1536 wacom->num_contacts_left = current_num_contacts;
1537
1538 /* There are at most 5 contacts per packet */
1539 contacts_to_send = min(5, wacom->num_contacts_left);
1540
1541 for (i = 0; i < contacts_to_send; i++) {
1542 int offset = (WACOM_BYTES_PER_MT_PACKET + x_offset) * i + 3;
1543 bool touch = (data[offset] & 0x1) && report_touch_events(wacom);
1544 int id = get_unaligned_le16(&data[offset + 1]);
1545 int slot = input_mt_get_slot_by_key(input, id);
1546
1547 if (slot < 0)
1548 continue;
1549
1550 input_mt_slot(input, slot);
1551 input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
1552 if (touch) {
1553 int x = get_unaligned_le16(&data[offset + x_offset + 7]);
1554 int y = get_unaligned_le16(&data[offset + x_offset + 9]);
1555 input_report_abs(input, ABS_MT_POSITION_X, x);
1556 input_report_abs(input, ABS_MT_POSITION_Y, y);
1557 }
1558 }
1559 input_mt_sync_frame(input);
1560
1561 wacom->num_contacts_left -= contacts_to_send;
1562 if (wacom->num_contacts_left <= 0) {
1563 wacom->num_contacts_left = 0;
1564 wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
1565 }
1566 return 1;
1567}
1568
1569static int wacom_tpc_mt_touch(struct wacom_wac *wacom)
1570{
1571 struct input_dev *input = wacom->touch_input;
1572 unsigned char *data = wacom->data;
1573 int i;
1574
1575 for (i = 0; i < 2; i++) {
1576 int p = data[1] & (1 << i);
1577 bool touch = p && report_touch_events(wacom);
1578
1579 input_mt_slot(input, i);
1580 input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
1581 if (touch) {
1582 int x = le16_to_cpup((__le16 *)&data[i * 2 + 2]) & 0x7fff;
1583 int y = le16_to_cpup((__le16 *)&data[i * 2 + 6]) & 0x7fff;
1584
1585 input_report_abs(input, ABS_MT_POSITION_X, x);
1586 input_report_abs(input, ABS_MT_POSITION_Y, y);
1587 }
1588 }
1589 input_mt_sync_frame(input);
1590
1591 /* keep touch state for pen event */
1592 wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
1593
1594 return 1;
1595}
1596
1597static int wacom_tpc_single_touch(struct wacom_wac *wacom, size_t len)
1598{
1599 unsigned char *data = wacom->data;
1600 struct input_dev *input = wacom->touch_input;
1601 bool prox = report_touch_events(wacom);
1602 int x = 0, y = 0;
1603
1604 if (wacom->features.touch_max > 1 || len > WACOM_PKGLEN_TPC2FG)
1605 return 0;
1606
1607 if (len == WACOM_PKGLEN_TPC1FG) {
1608 prox = prox && (data[0] & 0x01);
1609 x = get_unaligned_le16(&data[1]);
1610 y = get_unaligned_le16(&data[3]);
1611 } else if (len == WACOM_PKGLEN_TPC1FG_B) {
1612 prox = prox && (data[2] & 0x01);
1613 x = get_unaligned_le16(&data[3]);
1614 y = get_unaligned_le16(&data[5]);
1615 } else {
1616 prox = prox && (data[1] & 0x01);
1617 x = le16_to_cpup((__le16 *)&data[2]);
1618 y = le16_to_cpup((__le16 *)&data[4]);
1619 }
1620
1621 if (prox) {
1622 input_report_abs(input, ABS_X, x);
1623 input_report_abs(input, ABS_Y, y);
1624 }
1625 input_report_key(input, BTN_TOUCH, prox);
1626
1627 /* keep touch state for pen events */
1628 wacom->shared->touch_down = prox;
1629
1630 return 1;
1631}
1632
1633static int wacom_tpc_pen(struct wacom_wac *wacom)
1634{
1635 unsigned char *data = wacom->data;
1636 struct input_dev *input = wacom->pen_input;
1637 bool prox = data[1] & 0x20;
1638
1639 if (!wacom->shared->stylus_in_proximity) /* first in prox */
1640 /* Going into proximity select tool */
1641 wacom->tool[0] = (data[1] & 0x0c) ? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
1642
1643 /* keep pen state for touch events */
1644 wacom->shared->stylus_in_proximity = prox;
1645
1646 /* send pen events only when touch is up or forced out
1647 * or touch arbitration is off
1648 */
1649 if (!delay_pen_events(wacom)) {
1650 input_report_key(input, BTN_STYLUS, data[1] & 0x02);
1651 input_report_key(input, BTN_STYLUS2, data[1] & 0x10);
1652 input_report_abs(input, ABS_X, le16_to_cpup((__le16 *)&data[2]));
1653 input_report_abs(input, ABS_Y, le16_to_cpup((__le16 *)&data[4]));
1654 input_report_abs(input, ABS_PRESSURE, ((data[7] & 0x07) << 8) | data[6]);
1655 input_report_key(input, BTN_TOUCH, data[1] & 0x05);
1656 input_report_key(input, wacom->tool[0], prox);
1657 return 1;
1658 }
1659
1660 return 0;
1661}
1662
1663static int wacom_tpc_irq(struct wacom_wac *wacom, size_t len)
1664{
1665 unsigned char *data = wacom->data;
1666
1667 if (wacom->pen_input) {
1668 dev_dbg(wacom->pen_input->dev.parent,
1669 "%s: received report #%d\n", __func__, data[0]);
1670
1671 if (len == WACOM_PKGLEN_PENABLED ||
1672 data[0] == WACOM_REPORT_PENABLED)
1673 return wacom_tpc_pen(wacom);
1674 }
1675 else if (wacom->touch_input) {
1676 dev_dbg(wacom->touch_input->dev.parent,
1677 "%s: received report #%d\n", __func__, data[0]);
1678
1679 switch (len) {
1680 case WACOM_PKGLEN_TPC1FG:
1681 return wacom_tpc_single_touch(wacom, len);
1682
1683 case WACOM_PKGLEN_TPC2FG:
1684 return wacom_tpc_mt_touch(wacom);
1685
1686 default:
1687 switch (data[0]) {
1688 case WACOM_REPORT_TPC1FG:
1689 case WACOM_REPORT_TPCHID:
1690 case WACOM_REPORT_TPCST:
1691 case WACOM_REPORT_TPC1FGE:
1692 return wacom_tpc_single_touch(wacom, len);
1693
1694 case WACOM_REPORT_TPCMT:
1695 case WACOM_REPORT_TPCMT2:
1696 return wacom_mt_touch(wacom);
1697
1698 }
1699 }
1700 }
1701
1702 return 0;
1703}
1704
1705static int wacom_offset_rotation(struct input_dev *input, struct hid_usage *usage,
1706 int value, int num, int denom)
1707{
1708 struct input_absinfo *abs = &input->absinfo[usage->code];
1709 int range = (abs->maximum - abs->minimum + 1);
1710
1711 value += num*range/denom;
1712 if (value > abs->maximum)
1713 value -= range;
1714 else if (value < abs->minimum)
1715 value += range;
1716 return value;
1717}
1718
1719int wacom_equivalent_usage(int usage)
1720{
1721 if ((usage & HID_USAGE_PAGE) == WACOM_HID_UP_WACOMDIGITIZER) {
1722 int subpage = (usage & 0xFF00) << 8;
1723 int subusage = (usage & 0xFF);
1724
1725 if (subpage == WACOM_HID_SP_PAD ||
1726 subpage == WACOM_HID_SP_BUTTON ||
1727 subpage == WACOM_HID_SP_DIGITIZER ||
1728 subpage == WACOM_HID_SP_DIGITIZERINFO ||
1729 usage == WACOM_HID_WD_SENSE ||
1730 usage == WACOM_HID_WD_SERIALHI ||
1731 usage == WACOM_HID_WD_TOOLTYPE ||
1732 usage == WACOM_HID_WD_DISTANCE ||
1733 usage == WACOM_HID_WD_TOUCHSTRIP ||
1734 usage == WACOM_HID_WD_TOUCHSTRIP2 ||
1735 usage == WACOM_HID_WD_TOUCHRING ||
1736 usage == WACOM_HID_WD_TOUCHRINGSTATUS ||
1737 usage == WACOM_HID_WD_REPORT_VALID) {
1738 return usage;
1739 }
1740
1741 if (subpage == HID_UP_UNDEFINED)
1742 subpage = HID_UP_DIGITIZER;
1743
1744 return subpage | subusage;
1745 }
1746
1747 if ((usage & HID_USAGE_PAGE) == WACOM_HID_UP_WACOMTOUCH) {
1748 int subpage = (usage & 0xFF00) << 8;
1749 int subusage = (usage & 0xFF);
1750
1751 if (subpage == HID_UP_UNDEFINED)
1752 subpage = WACOM_HID_SP_DIGITIZER;
1753
1754 return subpage | subusage;
1755 }
1756
1757 return usage;
1758}
1759
1760static void wacom_map_usage(struct input_dev *input, struct hid_usage *usage,
1761 struct hid_field *field, __u8 type, __u16 code, int fuzz)
1762{
1763 struct wacom *wacom = input_get_drvdata(input);
1764 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
1765 struct wacom_features *features = &wacom_wac->features;
1766 int fmin = field->logical_minimum;
1767 int fmax = field->logical_maximum;
1768 unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid);
1769 int resolution_code = code;
1770
1771 if (equivalent_usage == HID_DG_TWIST) {
1772 resolution_code = ABS_RZ;
1773 }
1774
1775 if (equivalent_usage == HID_GD_X) {
1776 fmin += features->offset_left;
1777 fmax -= features->offset_right;
1778 }
1779 if (equivalent_usage == HID_GD_Y) {
1780 fmin += features->offset_top;
1781 fmax -= features->offset_bottom;
1782 }
1783
1784 usage->type = type;
1785 usage->code = code;
1786
1787 set_bit(type, input->evbit);
1788
1789 switch (type) {
1790 case EV_ABS:
1791 input_set_abs_params(input, code, fmin, fmax, fuzz, 0);
1792 input_abs_set_res(input, code,
1793 hidinput_calc_abs_res(field, resolution_code));
1794 break;
1795 case EV_KEY:
1796 input_set_capability(input, EV_KEY, code);
1797 break;
1798 case EV_MSC:
1799 input_set_capability(input, EV_MSC, code);
1800 break;
1801 case EV_SW:
1802 input_set_capability(input, EV_SW, code);
1803 break;
1804 }
1805}
1806
1807static void wacom_wac_battery_usage_mapping(struct hid_device *hdev,
1808 struct hid_field *field, struct hid_usage *usage)
1809{
1810 struct wacom *wacom = hid_get_drvdata(hdev);
1811 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
1812 struct wacom_features *features = &wacom_wac->features;
1813 unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
1814
1815 switch (equivalent_usage) {
1816 case HID_DG_BATTERYSTRENGTH:
1817 case WACOM_HID_WD_BATTERY_LEVEL:
1818 case WACOM_HID_WD_BATTERY_CHARGING:
1819 features->quirks |= WACOM_QUIRK_BATTERY;
1820 break;
1821 }
1822}
1823
1824static void wacom_wac_battery_event(struct hid_device *hdev, struct hid_field *field,
1825 struct hid_usage *usage, __s32 value)
1826{
1827 struct wacom *wacom = hid_get_drvdata(hdev);
1828 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
1829 unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
1830
1831 switch (equivalent_usage) {
1832 case HID_DG_BATTERYSTRENGTH:
1833 if (value == 0) {
1834 wacom_wac->hid_data.bat_status = POWER_SUPPLY_STATUS_UNKNOWN;
1835 }
1836 else {
1837 value = value * 100 / (field->logical_maximum - field->logical_minimum);
1838 wacom_wac->hid_data.battery_capacity = value;
1839 wacom_wac->hid_data.bat_connected = 1;
1840 wacom_wac->hid_data.bat_status = WACOM_POWER_SUPPLY_STATUS_AUTO;
1841 }
1842 break;
1843 case WACOM_HID_WD_BATTERY_LEVEL:
1844 value = value * 100 / (field->logical_maximum - field->logical_minimum);
1845 wacom_wac->hid_data.battery_capacity = value;
1846 wacom_wac->hid_data.bat_connected = 1;
1847 wacom_wac->hid_data.bat_status = WACOM_POWER_SUPPLY_STATUS_AUTO;
1848 break;
1849 case WACOM_HID_WD_BATTERY_CHARGING:
1850 wacom_wac->hid_data.bat_charging = value;
1851 wacom_wac->hid_data.ps_connected = value;
1852 wacom_wac->hid_data.bat_connected = 1;
1853 wacom_wac->hid_data.bat_status = WACOM_POWER_SUPPLY_STATUS_AUTO;
1854 break;
1855 }
1856}
1857
1858static void wacom_wac_battery_pre_report(struct hid_device *hdev,
1859 struct hid_report *report)
1860{
1861 return;
1862}
1863
1864static void wacom_wac_battery_report(struct hid_device *hdev,
1865 struct hid_report *report)
1866{
1867 struct wacom *wacom = hid_get_drvdata(hdev);
1868 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
1869 struct wacom_features *features = &wacom_wac->features;
1870
1871 if (features->quirks & WACOM_QUIRK_BATTERY) {
1872 int status = wacom_wac->hid_data.bat_status;
1873 int capacity = wacom_wac->hid_data.battery_capacity;
1874 bool charging = wacom_wac->hid_data.bat_charging;
1875 bool connected = wacom_wac->hid_data.bat_connected;
1876 bool powered = wacom_wac->hid_data.ps_connected;
1877
1878 wacom_notify_battery(wacom_wac, status, capacity, charging,
1879 connected, powered);
1880 }
1881}
1882
1883static void wacom_wac_pad_usage_mapping(struct hid_device *hdev,
1884 struct hid_field *field, struct hid_usage *usage)
1885{
1886 struct wacom *wacom = hid_get_drvdata(hdev);
1887 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
1888 struct wacom_features *features = &wacom_wac->features;
1889 struct input_dev *input = wacom_wac->pad_input;
1890 unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
1891
1892 switch (equivalent_usage) {
1893 case WACOM_HID_WD_ACCELEROMETER_X:
1894 __set_bit(INPUT_PROP_ACCELEROMETER, input->propbit);
1895 wacom_map_usage(input, usage, field, EV_ABS, ABS_X, 0);
1896 features->device_type |= WACOM_DEVICETYPE_PAD;
1897 break;
1898 case WACOM_HID_WD_ACCELEROMETER_Y:
1899 __set_bit(INPUT_PROP_ACCELEROMETER, input->propbit);
1900 wacom_map_usage(input, usage, field, EV_ABS, ABS_Y, 0);
1901 features->device_type |= WACOM_DEVICETYPE_PAD;
1902 break;
1903 case WACOM_HID_WD_ACCELEROMETER_Z:
1904 __set_bit(INPUT_PROP_ACCELEROMETER, input->propbit);
1905 wacom_map_usage(input, usage, field, EV_ABS, ABS_Z, 0);
1906 features->device_type |= WACOM_DEVICETYPE_PAD;
1907 break;
1908 case WACOM_HID_WD_BUTTONCENTER:
1909 wacom->generic_has_leds = true;
1910 /* fall through */
1911 case WACOM_HID_WD_BUTTONHOME:
1912 case WACOM_HID_WD_BUTTONUP:
1913 case WACOM_HID_WD_BUTTONDOWN:
1914 case WACOM_HID_WD_BUTTONLEFT:
1915 case WACOM_HID_WD_BUTTONRIGHT:
1916 wacom_map_usage(input, usage, field, EV_KEY,
1917 wacom_numbered_button_to_key(features->numbered_buttons),
1918 0);
1919 features->numbered_buttons++;
1920 features->device_type |= WACOM_DEVICETYPE_PAD;
1921 break;
1922 case WACOM_HID_WD_TOUCHONOFF:
1923 case WACOM_HID_WD_MUTE_DEVICE:
1924 /*
1925 * This usage, which is used to mute touch events, comes
1926 * from the pad packet, but is reported on the touch
1927 * interface. Because the touch interface may not have
1928 * been created yet, we cannot call wacom_map_usage(). In
1929 * order to process this usage when we receive it, we set
1930 * the usage type and code directly.
1931 */
1932 wacom_wac->has_mute_touch_switch = true;
1933 usage->type = EV_SW;
1934 usage->code = SW_MUTE_DEVICE;
1935 features->device_type |= WACOM_DEVICETYPE_PAD;
1936 break;
1937 case WACOM_HID_WD_TOUCHSTRIP:
1938 wacom_map_usage(input, usage, field, EV_ABS, ABS_RX, 0);
1939 features->device_type |= WACOM_DEVICETYPE_PAD;
1940 break;
1941 case WACOM_HID_WD_TOUCHSTRIP2:
1942 wacom_map_usage(input, usage, field, EV_ABS, ABS_RY, 0);
1943 features->device_type |= WACOM_DEVICETYPE_PAD;
1944 break;
1945 case WACOM_HID_WD_TOUCHRING:
1946 wacom_map_usage(input, usage, field, EV_ABS, ABS_WHEEL, 0);
1947 features->device_type |= WACOM_DEVICETYPE_PAD;
1948 break;
1949 case WACOM_HID_WD_TOUCHRINGSTATUS:
1950 /*
1951 * Only set up type/code association. Completely mapping
1952 * this usage may overwrite the axis resolution and range.
1953 */
1954 usage->type = EV_ABS;
1955 usage->code = ABS_WHEEL;
1956 set_bit(EV_ABS, input->evbit);
1957 features->device_type |= WACOM_DEVICETYPE_PAD;
1958 break;
1959 case WACOM_HID_WD_BUTTONCONFIG:
1960 wacom_map_usage(input, usage, field, EV_KEY, KEY_BUTTONCONFIG, 0);
1961 features->device_type |= WACOM_DEVICETYPE_PAD;
1962 break;
1963 case WACOM_HID_WD_ONSCREEN_KEYBOARD:
1964 wacom_map_usage(input, usage, field, EV_KEY, KEY_ONSCREEN_KEYBOARD, 0);
1965 features->device_type |= WACOM_DEVICETYPE_PAD;
1966 break;
1967 case WACOM_HID_WD_CONTROLPANEL:
1968 wacom_map_usage(input, usage, field, EV_KEY, KEY_CONTROLPANEL, 0);
1969 features->device_type |= WACOM_DEVICETYPE_PAD;
1970 break;
1971 case WACOM_HID_WD_MODE_CHANGE:
1972 /* do not overwrite previous data */
1973 if (!wacom_wac->has_mode_change) {
1974 wacom_wac->has_mode_change = true;
1975 wacom_wac->is_direct_mode = true;
1976 }
1977 features->device_type |= WACOM_DEVICETYPE_PAD;
1978 break;
1979 }
1980
1981 switch (equivalent_usage & 0xfffffff0) {
1982 case WACOM_HID_WD_EXPRESSKEY00:
1983 wacom_map_usage(input, usage, field, EV_KEY,
1984 wacom_numbered_button_to_key(features->numbered_buttons),
1985 0);
1986 features->numbered_buttons++;
1987 features->device_type |= WACOM_DEVICETYPE_PAD;
1988 break;
1989 }
1990}
1991
1992static void wacom_wac_pad_event(struct hid_device *hdev, struct hid_field *field,
1993 struct hid_usage *usage, __s32 value)
1994{
1995 struct wacom *wacom = hid_get_drvdata(hdev);
1996 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
1997 struct input_dev *input = wacom_wac->pad_input;
1998 struct wacom_features *features = &wacom_wac->features;
1999 unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
2000 int i;
2001 bool do_report = false;
2002
2003 /*
2004 * Avoid reporting this event and setting inrange_state if this usage
2005 * hasn't been mapped.
2006 */
2007 if (!usage->type && equivalent_usage != WACOM_HID_WD_MODE_CHANGE)
2008 return;
2009
2010 if (wacom_equivalent_usage(field->physical) == HID_DG_TABLETFUNCTIONKEY) {
2011 if (usage->hid != WACOM_HID_WD_TOUCHRING)
2012 wacom_wac->hid_data.inrange_state |= value;
2013 }
2014
2015 switch (equivalent_usage) {
2016 case WACOM_HID_WD_TOUCHRING:
2017 /*
2018 * Userspace expects touchrings to increase in value with
2019 * clockwise gestures and have their zero point at the
2020 * tablet's left. HID events "should" be clockwise-
2021 * increasing and zero at top, though the MobileStudio
2022 * Pro and 2nd-gen Intuos Pro don't do this...
2023 */
2024 if (hdev->vendor == 0x56a &&
2025 (hdev->product == 0x34d || hdev->product == 0x34e || /* MobileStudio Pro */
2026 hdev->product == 0x357 || hdev->product == 0x358)) { /* Intuos Pro 2 */
2027 value = (field->logical_maximum - value);
2028
2029 if (hdev->product == 0x357 || hdev->product == 0x358)
2030 value = wacom_offset_rotation(input, usage, value, 3, 16);
2031 else if (hdev->product == 0x34d || hdev->product == 0x34e)
2032 value = wacom_offset_rotation(input, usage, value, 1, 2);
2033 }
2034 else {
2035 value = wacom_offset_rotation(input, usage, value, 1, 4);
2036 }
2037 do_report = true;
2038 break;
2039 case WACOM_HID_WD_TOUCHRINGSTATUS:
2040 if (!value)
2041 input_event(input, usage->type, usage->code, 0);
2042 break;
2043
2044 case WACOM_HID_WD_MUTE_DEVICE:
2045 case WACOM_HID_WD_TOUCHONOFF:
2046 if (wacom_wac->shared->touch_input) {
2047 bool *is_touch_on = &wacom_wac->shared->is_touch_on;
2048
2049 if (equivalent_usage == WACOM_HID_WD_MUTE_DEVICE && value)
2050 *is_touch_on = !(*is_touch_on);
2051 else if (equivalent_usage == WACOM_HID_WD_TOUCHONOFF)
2052 *is_touch_on = value;
2053
2054 input_report_switch(wacom_wac->shared->touch_input,
2055 SW_MUTE_DEVICE, !(*is_touch_on));
2056 input_sync(wacom_wac->shared->touch_input);
2057 }
2058 break;
2059
2060 case WACOM_HID_WD_MODE_CHANGE:
2061 if (wacom_wac->is_direct_mode != value) {
2062 wacom_wac->is_direct_mode = value;
2063 wacom_schedule_work(&wacom->wacom_wac, WACOM_WORKER_MODE_CHANGE);
2064 }
2065 break;
2066
2067 case WACOM_HID_WD_BUTTONCENTER:
2068 for (i = 0; i < wacom->led.count; i++)
2069 wacom_update_led(wacom, features->numbered_buttons,
2070 value, i);
2071 /* fall through*/
2072 default:
2073 do_report = true;
2074 break;
2075 }
2076
2077 if (do_report) {
2078 input_event(input, usage->type, usage->code, value);
2079 if (value)
2080 wacom_wac->hid_data.pad_input_event_flag = true;
2081 }
2082}
2083
2084static void wacom_wac_pad_pre_report(struct hid_device *hdev,
2085 struct hid_report *report)
2086{
2087 struct wacom *wacom = hid_get_drvdata(hdev);
2088 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2089
2090 wacom_wac->hid_data.inrange_state = 0;
2091}
2092
2093static void wacom_wac_pad_report(struct hid_device *hdev,
2094 struct hid_report *report, struct hid_field *field)
2095{
2096 struct wacom *wacom = hid_get_drvdata(hdev);
2097 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2098 struct input_dev *input = wacom_wac->pad_input;
2099 bool active = wacom_wac->hid_data.inrange_state != 0;
2100
2101 /* report prox for expresskey events */
2102 if ((wacom_equivalent_usage(field->physical) == HID_DG_TABLETFUNCTIONKEY) &&
2103 wacom_wac->hid_data.pad_input_event_flag) {
2104 input_event(input, EV_ABS, ABS_MISC, active ? PAD_DEVICE_ID : 0);
2105 input_sync(input);
2106 if (!active)
2107 wacom_wac->hid_data.pad_input_event_flag = false;
2108 }
2109
2110}
2111
2112static void wacom_wac_pen_usage_mapping(struct hid_device *hdev,
2113 struct hid_field *field, struct hid_usage *usage)
2114{
2115 struct wacom *wacom = hid_get_drvdata(hdev);
2116 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2117 struct wacom_features *features = &wacom_wac->features;
2118 struct input_dev *input = wacom_wac->pen_input;
2119 unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
2120
2121 switch (equivalent_usage) {
2122 case HID_GD_X:
2123 wacom_map_usage(input, usage, field, EV_ABS, ABS_X, 4);
2124 break;
2125 case HID_GD_Y:
2126 wacom_map_usage(input, usage, field, EV_ABS, ABS_Y, 4);
2127 break;
2128 case WACOM_HID_WD_DISTANCE:
2129 case HID_GD_Z:
2130 wacom_map_usage(input, usage, field, EV_ABS, ABS_DISTANCE, 0);
2131 break;
2132 case HID_DG_TIPPRESSURE:
2133 wacom_map_usage(input, usage, field, EV_ABS, ABS_PRESSURE, 0);
2134 break;
2135 case HID_DG_INRANGE:
2136 wacom_map_usage(input, usage, field, EV_KEY, BTN_TOOL_PEN, 0);
2137 break;
2138 case HID_DG_INVERT:
2139 wacom_map_usage(input, usage, field, EV_KEY,
2140 BTN_TOOL_RUBBER, 0);
2141 break;
2142 case HID_DG_TILT_X:
2143 wacom_map_usage(input, usage, field, EV_ABS, ABS_TILT_X, 0);
2144 break;
2145 case HID_DG_TILT_Y:
2146 wacom_map_usage(input, usage, field, EV_ABS, ABS_TILT_Y, 0);
2147 break;
2148 case HID_DG_TWIST:
2149 wacom_map_usage(input, usage, field, EV_ABS, ABS_Z, 0);
2150 break;
2151 case HID_DG_ERASER:
2152 case HID_DG_TIPSWITCH:
2153 wacom_map_usage(input, usage, field, EV_KEY, BTN_TOUCH, 0);
2154 break;
2155 case HID_DG_BARRELSWITCH:
2156 wacom_map_usage(input, usage, field, EV_KEY, BTN_STYLUS, 0);
2157 break;
2158 case HID_DG_BARRELSWITCH2:
2159 wacom_map_usage(input, usage, field, EV_KEY, BTN_STYLUS2, 0);
2160 break;
2161 case HID_DG_TOOLSERIALNUMBER:
2162 features->quirks |= WACOM_QUIRK_TOOLSERIAL;
2163 wacom_map_usage(input, usage, field, EV_MSC, MSC_SERIAL, 0);
2164 break;
2165 case WACOM_HID_WD_SENSE:
2166 features->quirks |= WACOM_QUIRK_SENSE;
2167 wacom_map_usage(input, usage, field, EV_KEY, BTN_TOOL_PEN, 0);
2168 break;
2169 case WACOM_HID_WD_SERIALHI:
2170 wacom_map_usage(input, usage, field, EV_ABS, ABS_MISC, 0);
2171
2172 if (!(features->quirks & WACOM_QUIRK_AESPEN)) {
2173 set_bit(EV_KEY, input->evbit);
2174 input_set_capability(input, EV_KEY, BTN_TOOL_PEN);
2175 input_set_capability(input, EV_KEY, BTN_TOOL_RUBBER);
2176 input_set_capability(input, EV_KEY, BTN_TOOL_BRUSH);
2177 input_set_capability(input, EV_KEY, BTN_TOOL_PENCIL);
2178 input_set_capability(input, EV_KEY, BTN_TOOL_AIRBRUSH);
2179 if (!(features->device_type & WACOM_DEVICETYPE_DIRECT)) {
2180 input_set_capability(input, EV_KEY, BTN_TOOL_MOUSE);
2181 input_set_capability(input, EV_KEY, BTN_TOOL_LENS);
2182 }
2183 }
2184 break;
2185 case WACOM_HID_WD_FINGERWHEEL:
2186 wacom_map_usage(input, usage, field, EV_ABS, ABS_WHEEL, 0);
2187 break;
2188 }
2189}
2190
2191static void wacom_wac_pen_event(struct hid_device *hdev, struct hid_field *field,
2192 struct hid_usage *usage, __s32 value)
2193{
2194 struct wacom *wacom = hid_get_drvdata(hdev);
2195 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2196 struct wacom_features *features = &wacom_wac->features;
2197 struct input_dev *input = wacom_wac->pen_input;
2198 unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
2199
2200 if (wacom_wac->is_invalid_bt_frame)
2201 return;
2202
2203 switch (equivalent_usage) {
2204 case HID_GD_Z:
2205 /*
2206 * HID_GD_Z "should increase as the control's position is
2207 * moved from high to low", while ABS_DISTANCE instead
2208 * increases in value as the tool moves from low to high.
2209 */
2210 value = field->logical_maximum - value;
2211 break;
2212 case HID_DG_INRANGE:
2213 wacom_wac->hid_data.inrange_state = value;
2214 if (!(features->quirks & WACOM_QUIRK_SENSE))
2215 wacom_wac->hid_data.sense_state = value;
2216 return;
2217 case HID_DG_INVERT:
2218 wacom_wac->hid_data.invert_state = value;
2219 return;
2220 case HID_DG_ERASER:
2221 case HID_DG_TIPSWITCH:
2222 wacom_wac->hid_data.tipswitch |= value;
2223 return;
2224 case HID_DG_BARRELSWITCH:
2225 wacom_wac->hid_data.barrelswitch = value;
2226 return;
2227 case HID_DG_BARRELSWITCH2:
2228 wacom_wac->hid_data.barrelswitch2 = value;
2229 return;
2230 case HID_DG_TOOLSERIALNUMBER:
2231 if (value) {
2232 wacom_wac->serial[0] = (wacom_wac->serial[0] & ~0xFFFFFFFFULL);
2233 wacom_wac->serial[0] |= (__u32)value;
2234 }
2235 return;
2236 case HID_DG_TWIST:
2237 /*
2238 * Userspace expects pen twist to have its zero point when
2239 * the buttons/finger is on the tablet's left. HID values
2240 * are zero when buttons are toward the top.
2241 */
2242 value = wacom_offset_rotation(input, usage, value, 1, 4);
2243 break;
2244 case WACOM_HID_WD_SENSE:
2245 wacom_wac->hid_data.sense_state = value;
2246 return;
2247 case WACOM_HID_WD_SERIALHI:
2248 if (value) {
2249 wacom_wac->serial[0] = (wacom_wac->serial[0] & 0xFFFFFFFF);
2250 wacom_wac->serial[0] |= ((__u64)value) << 32;
2251 /*
2252 * Non-USI EMR devices may contain additional tool type
2253 * information here. See WACOM_HID_WD_TOOLTYPE case for
2254 * more details.
2255 */
2256 if (value >> 20 == 1) {
2257 wacom_wac->id[0] |= value & 0xFFFFF;
2258 }
2259 }
2260 return;
2261 case WACOM_HID_WD_TOOLTYPE:
2262 /*
2263 * Some devices (MobileStudio Pro, and possibly later
2264 * devices as well) do not return the complete tool
2265 * type in their WACOM_HID_WD_TOOLTYPE usage. Use a
2266 * bitwise OR so the complete value can be built
2267 * up over time :(
2268 */
2269 wacom_wac->id[0] |= value;
2270 return;
2271 case WACOM_HID_WD_OFFSETLEFT:
2272 if (features->offset_left && value != features->offset_left)
2273 hid_warn(hdev, "%s: overriding existing left offset "
2274 "%d -> %d\n", __func__, value,
2275 features->offset_left);
2276 features->offset_left = value;
2277 return;
2278 case WACOM_HID_WD_OFFSETRIGHT:
2279 if (features->offset_right && value != features->offset_right)
2280 hid_warn(hdev, "%s: overriding existing right offset "
2281 "%d -> %d\n", __func__, value,
2282 features->offset_right);
2283 features->offset_right = value;
2284 return;
2285 case WACOM_HID_WD_OFFSETTOP:
2286 if (features->offset_top && value != features->offset_top)
2287 hid_warn(hdev, "%s: overriding existing top offset "
2288 "%d -> %d\n", __func__, value,
2289 features->offset_top);
2290 features->offset_top = value;
2291 return;
2292 case WACOM_HID_WD_OFFSETBOTTOM:
2293 if (features->offset_bottom && value != features->offset_bottom)
2294 hid_warn(hdev, "%s: overriding existing bottom offset "
2295 "%d -> %d\n", __func__, value,
2296 features->offset_bottom);
2297 features->offset_bottom = value;
2298 return;
2299 case WACOM_HID_WD_REPORT_VALID:
2300 wacom_wac->is_invalid_bt_frame = !value;
2301 return;
2302 }
2303
2304 /* send pen events only when touch is up or forced out
2305 * or touch arbitration is off
2306 */
2307 if (!usage->type || delay_pen_events(wacom_wac))
2308 return;
2309
2310 /* send pen events only when the pen is in range */
2311 if (wacom_wac->hid_data.inrange_state)
2312 input_event(input, usage->type, usage->code, value);
2313 else if (wacom_wac->shared->stylus_in_proximity && !wacom_wac->hid_data.sense_state)
2314 input_event(input, usage->type, usage->code, 0);
2315}
2316
2317static void wacom_wac_pen_pre_report(struct hid_device *hdev,
2318 struct hid_report *report)
2319{
2320 struct wacom *wacom = hid_get_drvdata(hdev);
2321 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2322
2323 wacom_wac->is_invalid_bt_frame = false;
2324 return;
2325}
2326
2327static void wacom_wac_pen_report(struct hid_device *hdev,
2328 struct hid_report *report)
2329{
2330 struct wacom *wacom = hid_get_drvdata(hdev);
2331 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2332 struct input_dev *input = wacom_wac->pen_input;
2333 bool range = wacom_wac->hid_data.inrange_state;
2334 bool sense = wacom_wac->hid_data.sense_state;
2335
2336 if (wacom_wac->is_invalid_bt_frame)
2337 return;
2338
2339 if (!wacom_wac->tool[0] && range) { /* first in range */
2340 /* Going into range select tool */
2341 if (wacom_wac->hid_data.invert_state)
2342 wacom_wac->tool[0] = BTN_TOOL_RUBBER;
2343 else if (wacom_wac->id[0])
2344 wacom_wac->tool[0] = wacom_intuos_get_tool_type(wacom_wac->id[0]);
2345 else
2346 wacom_wac->tool[0] = BTN_TOOL_PEN;
2347 }
2348
2349 /* keep pen state for touch events */
2350 wacom_wac->shared->stylus_in_proximity = sense;
2351
2352 if (!delay_pen_events(wacom_wac) && wacom_wac->tool[0]) {
2353 int id = wacom_wac->id[0];
2354 int sw_state = wacom_wac->hid_data.barrelswitch |
2355 (wacom_wac->hid_data.barrelswitch2 << 1);
2356
2357 input_report_key(input, BTN_STYLUS, sw_state == 1);
2358 input_report_key(input, BTN_STYLUS2, sw_state == 2);
2359 input_report_key(input, BTN_STYLUS3, sw_state == 3);
2360
2361 /*
2362 * Non-USI EMR tools should have their IDs mangled to
2363 * match the legacy behavior of wacom_intuos_general
2364 */
2365 if (wacom_wac->serial[0] >> 52 == 1)
2366 id = wacom_intuos_id_mangle(id);
2367
2368 /*
2369 * To ensure compatibility with xf86-input-wacom, we should
2370 * report the BTN_TOOL_* event prior to the ABS_MISC or
2371 * MSC_SERIAL events.
2372 */
2373 input_report_key(input, BTN_TOUCH,
2374 wacom_wac->hid_data.tipswitch);
2375 input_report_key(input, wacom_wac->tool[0], sense);
2376 if (wacom_wac->serial[0]) {
2377 input_event(input, EV_MSC, MSC_SERIAL, wacom_wac->serial[0]);
2378 input_report_abs(input, ABS_MISC, sense ? id : 0);
2379 }
2380
2381 wacom_wac->hid_data.tipswitch = false;
2382
2383 input_sync(input);
2384 }
2385
2386 if (!sense) {
2387 wacom_wac->tool[0] = 0;
2388 wacom_wac->id[0] = 0;
2389 wacom_wac->serial[0] = 0;
2390 }
2391}
2392
2393static void wacom_wac_finger_usage_mapping(struct hid_device *hdev,
2394 struct hid_field *field, struct hid_usage *usage)
2395{
2396 struct wacom *wacom = hid_get_drvdata(hdev);
2397 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2398 struct input_dev *input = wacom_wac->touch_input;
2399 unsigned touch_max = wacom_wac->features.touch_max;
2400 unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
2401
2402 switch (equivalent_usage) {
2403 case HID_GD_X:
2404 if (touch_max == 1)
2405 wacom_map_usage(input, usage, field, EV_ABS, ABS_X, 4);
2406 else
2407 wacom_map_usage(input, usage, field, EV_ABS,
2408 ABS_MT_POSITION_X, 4);
2409 break;
2410 case HID_GD_Y:
2411 if (touch_max == 1)
2412 wacom_map_usage(input, usage, field, EV_ABS, ABS_Y, 4);
2413 else
2414 wacom_map_usage(input, usage, field, EV_ABS,
2415 ABS_MT_POSITION_Y, 4);
2416 break;
2417 case HID_DG_WIDTH:
2418 case HID_DG_HEIGHT:
2419 wacom_map_usage(input, usage, field, EV_ABS, ABS_MT_TOUCH_MAJOR, 0);
2420 wacom_map_usage(input, usage, field, EV_ABS, ABS_MT_TOUCH_MINOR, 0);
2421 input_set_abs_params(input, ABS_MT_ORIENTATION, 0, 1, 0, 0);
2422 break;
2423 case HID_DG_TIPSWITCH:
2424 wacom_map_usage(input, usage, field, EV_KEY, BTN_TOUCH, 0);
2425 break;
2426 case HID_DG_CONTACTCOUNT:
2427 wacom_wac->hid_data.cc_report = field->report->id;
2428 wacom_wac->hid_data.cc_index = field->index;
2429 wacom_wac->hid_data.cc_value_index = usage->usage_index;
2430 break;
2431 case HID_DG_CONTACTID:
2432 if ((field->logical_maximum - field->logical_minimum) < touch_max) {
2433 /*
2434 * The HID descriptor for G11 sensors leaves logical
2435 * maximum set to '1' despite it being a multitouch
2436 * device. Override to a sensible number.
2437 */
2438 field->logical_maximum = 255;
2439 }
2440 break;
2441 }
2442}
2443
2444static void wacom_wac_finger_slot(struct wacom_wac *wacom_wac,
2445 struct input_dev *input)
2446{
2447 struct hid_data *hid_data = &wacom_wac->hid_data;
2448 bool mt = wacom_wac->features.touch_max > 1;
2449 bool prox = hid_data->tipswitch &&
2450 report_touch_events(wacom_wac);
2451
2452 if (wacom_wac->shared->has_mute_touch_switch &&
2453 !wacom_wac->shared->is_touch_on) {
2454 if (!wacom_wac->shared->touch_down)
2455 return;
2456 prox = 0;
2457 }
2458
2459 wacom_wac->hid_data.num_received++;
2460 if (wacom_wac->hid_data.num_received > wacom_wac->hid_data.num_expected)
2461 return;
2462
2463 if (mt) {
2464 int slot;
2465
2466 slot = input_mt_get_slot_by_key(input, hid_data->id);
2467 input_mt_slot(input, slot);
2468 input_mt_report_slot_state(input, MT_TOOL_FINGER, prox);
2469 }
2470 else {
2471 input_report_key(input, BTN_TOUCH, prox);
2472 }
2473
2474 if (prox) {
2475 input_report_abs(input, mt ? ABS_MT_POSITION_X : ABS_X,
2476 hid_data->x);
2477 input_report_abs(input, mt ? ABS_MT_POSITION_Y : ABS_Y,
2478 hid_data->y);
2479
2480 if (test_bit(ABS_MT_TOUCH_MAJOR, input->absbit)) {
2481 input_report_abs(input, ABS_MT_TOUCH_MAJOR, max(hid_data->width, hid_data->height));
2482 input_report_abs(input, ABS_MT_TOUCH_MINOR, min(hid_data->width, hid_data->height));
2483 if (hid_data->width != hid_data->height)
2484 input_report_abs(input, ABS_MT_ORIENTATION, hid_data->width <= hid_data->height ? 0 : 1);
2485 }
2486 }
2487}
2488
2489static void wacom_wac_finger_event(struct hid_device *hdev,
2490 struct hid_field *field, struct hid_usage *usage, __s32 value)
2491{
2492 struct wacom *wacom = hid_get_drvdata(hdev);
2493 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2494 unsigned equivalent_usage = wacom_equivalent_usage(usage->hid);
2495
2496 switch (equivalent_usage) {
2497 case HID_GD_X:
2498 wacom_wac->hid_data.x = value;
2499 break;
2500 case HID_GD_Y:
2501 wacom_wac->hid_data.y = value;
2502 break;
2503 case HID_DG_WIDTH:
2504 wacom_wac->hid_data.width = value;
2505 break;
2506 case HID_DG_HEIGHT:
2507 wacom_wac->hid_data.height = value;
2508 break;
2509 case HID_DG_CONTACTID:
2510 wacom_wac->hid_data.id = value;
2511 break;
2512 case HID_DG_TIPSWITCH:
2513 wacom_wac->hid_data.tipswitch = value;
2514 break;
2515 }
2516
2517
2518 if (usage->usage_index + 1 == field->report_count) {
2519 if (equivalent_usage == wacom_wac->hid_data.last_slot_field)
2520 wacom_wac_finger_slot(wacom_wac, wacom_wac->touch_input);
2521 }
2522}
2523
2524static void wacom_wac_finger_pre_report(struct hid_device *hdev,
2525 struct hid_report *report)
2526{
2527 struct wacom *wacom = hid_get_drvdata(hdev);
2528 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2529 struct hid_data* hid_data = &wacom_wac->hid_data;
2530 int i;
2531
2532 for (i = 0; i < report->maxfield; i++) {
2533 struct hid_field *field = report->field[i];
2534 int j;
2535
2536 for (j = 0; j < field->maxusage; j++) {
2537 struct hid_usage *usage = &field->usage[j];
2538 unsigned int equivalent_usage =
2539 wacom_equivalent_usage(usage->hid);
2540
2541 switch (equivalent_usage) {
2542 case HID_GD_X:
2543 case HID_GD_Y:
2544 case HID_DG_WIDTH:
2545 case HID_DG_HEIGHT:
2546 case HID_DG_CONTACTID:
2547 case HID_DG_INRANGE:
2548 case HID_DG_INVERT:
2549 case HID_DG_TIPSWITCH:
2550 hid_data->last_slot_field = equivalent_usage;
2551 break;
2552 case HID_DG_CONTACTCOUNT:
2553 hid_data->cc_report = report->id;
2554 hid_data->cc_index = i;
2555 hid_data->cc_value_index = j;
2556 break;
2557 }
2558 }
2559 }
2560
2561 if (hid_data->cc_report != 0 &&
2562 hid_data->cc_index >= 0) {
2563 struct hid_field *field = report->field[hid_data->cc_index];
2564 int value = field->value[hid_data->cc_value_index];
2565 if (value)
2566 hid_data->num_expected = value;
2567 }
2568 else {
2569 hid_data->num_expected = wacom_wac->features.touch_max;
2570 }
2571}
2572
2573static void wacom_wac_finger_report(struct hid_device *hdev,
2574 struct hid_report *report)
2575{
2576 struct wacom *wacom = hid_get_drvdata(hdev);
2577 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2578 struct input_dev *input = wacom_wac->touch_input;
2579 unsigned touch_max = wacom_wac->features.touch_max;
2580
2581 /* If more packets of data are expected, give us a chance to
2582 * process them rather than immediately syncing a partial
2583 * update.
2584 */
2585 if (wacom_wac->hid_data.num_received < wacom_wac->hid_data.num_expected)
2586 return;
2587
2588 if (touch_max > 1)
2589 input_mt_sync_frame(input);
2590
2591 input_sync(input);
2592 wacom_wac->hid_data.num_received = 0;
2593
2594 /* keep touch state for pen event */
2595 wacom_wac->shared->touch_down = wacom_wac_finger_count_touches(wacom_wac);
2596}
2597
2598void wacom_wac_usage_mapping(struct hid_device *hdev,
2599 struct hid_field *field, struct hid_usage *usage)
2600{
2601 struct wacom *wacom = hid_get_drvdata(hdev);
2602 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2603 struct wacom_features *features = &wacom_wac->features;
2604
2605 if (WACOM_DIRECT_DEVICE(field))
2606 features->device_type |= WACOM_DEVICETYPE_DIRECT;
2607
2608 /* usage tests must precede field tests */
2609 if (WACOM_BATTERY_USAGE(usage))
2610 wacom_wac_battery_usage_mapping(hdev, field, usage);
2611 else if (WACOM_PAD_FIELD(field))
2612 wacom_wac_pad_usage_mapping(hdev, field, usage);
2613 else if (WACOM_PEN_FIELD(field))
2614 wacom_wac_pen_usage_mapping(hdev, field, usage);
2615 else if (WACOM_FINGER_FIELD(field))
2616 wacom_wac_finger_usage_mapping(hdev, field, usage);
2617}
2618
2619void wacom_wac_event(struct hid_device *hdev, struct hid_field *field,
2620 struct hid_usage *usage, __s32 value)
2621{
2622 struct wacom *wacom = hid_get_drvdata(hdev);
2623
2624 if (wacom->wacom_wac.features.type != HID_GENERIC)
2625 return;
2626
2627 if (value > field->logical_maximum || value < field->logical_minimum)
2628 return;
2629
2630 /* usage tests must precede field tests */
2631 if (WACOM_BATTERY_USAGE(usage))
2632 wacom_wac_battery_event(hdev, field, usage, value);
2633 else if (WACOM_PAD_FIELD(field) && wacom->wacom_wac.pad_input)
2634 wacom_wac_pad_event(hdev, field, usage, value);
2635 else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
2636 wacom_wac_pen_event(hdev, field, usage, value);
2637 else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
2638 wacom_wac_finger_event(hdev, field, usage, value);
2639}
2640
2641static void wacom_report_events(struct hid_device *hdev,
2642 struct hid_report *report, int collection_index,
2643 int field_index)
2644{
2645 int r;
2646
2647 for (r = field_index; r < report->maxfield; r++) {
2648 struct hid_field *field;
2649 unsigned count, n;
2650
2651 field = report->field[r];
2652 count = field->report_count;
2653
2654 if (!(HID_MAIN_ITEM_VARIABLE & field->flags))
2655 continue;
2656
2657 for (n = 0 ; n < count; n++) {
2658 if (field->usage[n].collection_index == collection_index)
2659 wacom_wac_event(hdev, field, &field->usage[n],
2660 field->value[n]);
2661 else
2662 return;
2663 }
2664 }
2665}
2666
2667static int wacom_wac_collection(struct hid_device *hdev, struct hid_report *report,
2668 int collection_index, struct hid_field *field,
2669 int field_index)
2670{
2671 struct wacom *wacom = hid_get_drvdata(hdev);
2672
2673 wacom_report_events(hdev, report, collection_index, field_index);
2674
2675 /*
2676 * Non-input reports may be sent prior to the device being
2677 * completely initialized. Since only their events need
2678 * to be processed, exit after 'wacom_report_events' has
2679 * been called to prevent potential crashes in the report-
2680 * processing functions.
2681 */
2682 if (report->type != HID_INPUT_REPORT)
2683 return -1;
2684
2685 if (WACOM_PAD_FIELD(field) && wacom->wacom_wac.pad_input)
2686 wacom_wac_pad_report(hdev, report, field);
2687 else if (WACOM_PEN_FIELD(field) && wacom->wacom_wac.pen_input)
2688 wacom_wac_pen_report(hdev, report);
2689 else if (WACOM_FINGER_FIELD(field) && wacom->wacom_wac.touch_input)
2690 wacom_wac_finger_report(hdev, report);
2691
2692 return 0;
2693}
2694
2695void wacom_wac_report(struct hid_device *hdev, struct hid_report *report)
2696{
2697 struct wacom *wacom = hid_get_drvdata(hdev);
2698 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2699 struct hid_field *field;
2700 bool pad_in_hid_field = false, pen_in_hid_field = false,
2701 finger_in_hid_field = false;
2702 int r;
2703 int prev_collection = -1;
2704
2705 if (wacom_wac->features.type != HID_GENERIC)
2706 return;
2707
2708 for (r = 0; r < report->maxfield; r++) {
2709 field = report->field[r];
2710
2711 if (WACOM_PAD_FIELD(field))
2712 pad_in_hid_field = true;
2713 if (WACOM_PEN_FIELD(field))
2714 pen_in_hid_field = true;
2715 if (WACOM_FINGER_FIELD(field))
2716 finger_in_hid_field = true;
2717 }
2718
2719 wacom_wac_battery_pre_report(hdev, report);
2720
2721 if (pad_in_hid_field && wacom->wacom_wac.pad_input)
2722 wacom_wac_pad_pre_report(hdev, report);
2723 if (pen_in_hid_field && wacom->wacom_wac.pen_input)
2724 wacom_wac_pen_pre_report(hdev, report);
2725 if (finger_in_hid_field && wacom->wacom_wac.touch_input)
2726 wacom_wac_finger_pre_report(hdev, report);
2727
2728 for (r = 0; r < report->maxfield; r++) {
2729 field = report->field[r];
2730
2731 if (field->usage[0].collection_index != prev_collection) {
2732 if (wacom_wac_collection(hdev, report,
2733 field->usage[0].collection_index, field, r) < 0)
2734 return;
2735 prev_collection = field->usage[0].collection_index;
2736 }
2737 }
2738
2739 wacom_wac_battery_report(hdev, report);
2740}
2741
2742static int wacom_bpt_touch(struct wacom_wac *wacom)
2743{
2744 struct wacom_features *features = &wacom->features;
2745 struct input_dev *input = wacom->touch_input;
2746 struct input_dev *pad_input = wacom->pad_input;
2747 unsigned char *data = wacom->data;
2748 int i;
2749
2750 if (data[0] != 0x02)
2751 return 0;
2752
2753 for (i = 0; i < 2; i++) {
2754 int offset = (data[1] & 0x80) ? (8 * i) : (9 * i);
2755 bool touch = report_touch_events(wacom)
2756 && (data[offset + 3] & 0x80);
2757
2758 input_mt_slot(input, i);
2759 input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
2760 if (touch) {
2761 int x = get_unaligned_be16(&data[offset + 3]) & 0x7ff;
2762 int y = get_unaligned_be16(&data[offset + 5]) & 0x7ff;
2763 if (features->quirks & WACOM_QUIRK_BBTOUCH_LOWRES) {
2764 x <<= 5;
2765 y <<= 5;
2766 }
2767 input_report_abs(input, ABS_MT_POSITION_X, x);
2768 input_report_abs(input, ABS_MT_POSITION_Y, y);
2769 }
2770 }
2771
2772 input_mt_sync_frame(input);
2773
2774 input_report_key(pad_input, BTN_LEFT, (data[1] & 0x08) != 0);
2775 input_report_key(pad_input, BTN_FORWARD, (data[1] & 0x04) != 0);
2776 input_report_key(pad_input, BTN_BACK, (data[1] & 0x02) != 0);
2777 input_report_key(pad_input, BTN_RIGHT, (data[1] & 0x01) != 0);
2778 wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
2779
2780 return 1;
2781}
2782
2783static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
2784{
2785 struct wacom_features *features = &wacom->features;
2786 struct input_dev *input = wacom->touch_input;
2787 bool touch = data[1] & 0x80;
2788 int slot = input_mt_get_slot_by_key(input, data[0]);
2789
2790 if (slot < 0)
2791 return;
2792
2793 touch = touch && report_touch_events(wacom);
2794
2795 input_mt_slot(input, slot);
2796 input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
2797
2798 if (touch) {
2799 int x = (data[2] << 4) | (data[4] >> 4);
2800 int y = (data[3] << 4) | (data[4] & 0x0f);
2801 int width, height;
2802
2803 if (features->type >= INTUOSPS && features->type <= INTUOSHT2) {
2804 width = data[5] * 100;
2805 height = data[6] * 100;
2806 } else {
2807 /*
2808 * "a" is a scaled-down area which we assume is
2809 * roughly circular and which can be described as:
2810 * a=(pi*r^2)/C.
2811 */
2812 int a = data[5];
2813 int x_res = input_abs_get_res(input, ABS_MT_POSITION_X);
2814 int y_res = input_abs_get_res(input, ABS_MT_POSITION_Y);
2815 width = 2 * int_sqrt(a * WACOM_CONTACT_AREA_SCALE);
2816 height = width * y_res / x_res;
2817 }
2818
2819 input_report_abs(input, ABS_MT_POSITION_X, x);
2820 input_report_abs(input, ABS_MT_POSITION_Y, y);
2821 input_report_abs(input, ABS_MT_TOUCH_MAJOR, width);
2822 input_report_abs(input, ABS_MT_TOUCH_MINOR, height);
2823 }
2824}
2825
2826static void wacom_bpt3_button_msg(struct wacom_wac *wacom, unsigned char *data)
2827{
2828 struct input_dev *input = wacom->pad_input;
2829 struct wacom_features *features = &wacom->features;
2830
2831 if (features->type == INTUOSHT || features->type == INTUOSHT2) {
2832 input_report_key(input, BTN_LEFT, (data[1] & 0x02) != 0);
2833 input_report_key(input, BTN_BACK, (data[1] & 0x08) != 0);
2834 } else {
2835 input_report_key(input, BTN_BACK, (data[1] & 0x02) != 0);
2836 input_report_key(input, BTN_LEFT, (data[1] & 0x08) != 0);
2837 }
2838 input_report_key(input, BTN_FORWARD, (data[1] & 0x04) != 0);
2839 input_report_key(input, BTN_RIGHT, (data[1] & 0x01) != 0);
2840}
2841
2842static int wacom_bpt3_touch(struct wacom_wac *wacom)
2843{
2844 unsigned char *data = wacom->data;
2845 int count = data[1] & 0x07;
2846 int touch_changed = 0, i;
2847
2848 if (data[0] != 0x02)
2849 return 0;
2850
2851 /* data has up to 7 fixed sized 8-byte messages starting at data[2] */
2852 for (i = 0; i < count; i++) {
2853 int offset = (8 * i) + 2;
2854 int msg_id = data[offset];
2855
2856 if (msg_id >= 2 && msg_id <= 17) {
2857 wacom_bpt3_touch_msg(wacom, data + offset);
2858 touch_changed++;
2859 } else if (msg_id == 128)
2860 wacom_bpt3_button_msg(wacom, data + offset);
2861
2862 }
2863
2864 /* only update touch if we actually have a touchpad and touch data changed */
2865 if (wacom->touch_input && touch_changed) {
2866 input_mt_sync_frame(wacom->touch_input);
2867 wacom->shared->touch_down = wacom_wac_finger_count_touches(wacom);
2868 }
2869
2870 return 1;
2871}
2872
2873static int wacom_bpt_pen(struct wacom_wac *wacom)
2874{
2875 struct wacom_features *features = &wacom->features;
2876 struct input_dev *input = wacom->pen_input;
2877 unsigned char *data = wacom->data;
2878 int x = 0, y = 0, p = 0, d = 0;
2879 bool pen = false, btn1 = false, btn2 = false;
2880 bool range, prox, rdy;
2881
2882 if (data[0] != WACOM_REPORT_PENABLED)
2883 return 0;
2884
2885 range = (data[1] & 0x80) == 0x80;
2886 prox = (data[1] & 0x40) == 0x40;
2887 rdy = (data[1] & 0x20) == 0x20;
2888
2889 wacom->shared->stylus_in_proximity = range;
2890 if (delay_pen_events(wacom))
2891 return 0;
2892
2893 if (rdy) {
2894 p = le16_to_cpup((__le16 *)&data[6]);
2895 pen = data[1] & 0x01;
2896 btn1 = data[1] & 0x02;
2897 btn2 = data[1] & 0x04;
2898 }
2899 if (prox) {
2900 x = le16_to_cpup((__le16 *)&data[2]);
2901 y = le16_to_cpup((__le16 *)&data[4]);
2902
2903 if (data[1] & 0x08) {
2904 wacom->tool[0] = BTN_TOOL_RUBBER;
2905 wacom->id[0] = ERASER_DEVICE_ID;
2906 } else {
2907 wacom->tool[0] = BTN_TOOL_PEN;
2908 wacom->id[0] = STYLUS_DEVICE_ID;
2909 }
2910 wacom->reporting_data = true;
2911 }
2912 if (range) {
2913 /*
2914 * Convert distance from out prox to distance from tablet.
2915 * distance will be greater than distance_max once
2916 * touching and applying pressure; do not report negative
2917 * distance.
2918 */
2919 if (data[8] <= features->distance_max)
2920 d = features->distance_max - data[8];
2921 } else {
2922 wacom->id[0] = 0;
2923 }
2924
2925 if (wacom->reporting_data) {
2926 input_report_key(input, BTN_TOUCH, pen);
2927 input_report_key(input, BTN_STYLUS, btn1);
2928 input_report_key(input, BTN_STYLUS2, btn2);
2929
2930 if (prox || !range) {
2931 input_report_abs(input, ABS_X, x);
2932 input_report_abs(input, ABS_Y, y);
2933 }
2934 input_report_abs(input, ABS_PRESSURE, p);
2935 input_report_abs(input, ABS_DISTANCE, d);
2936
2937 input_report_key(input, wacom->tool[0], range); /* PEN or RUBBER */
2938 input_report_abs(input, ABS_MISC, wacom->id[0]); /* TOOL ID */
2939 }
2940
2941 if (!range) {
2942 wacom->reporting_data = false;
2943 }
2944
2945 return 1;
2946}
2947
2948static int wacom_bpt_irq(struct wacom_wac *wacom, size_t len)
2949{
2950 struct wacom_features *features = &wacom->features;
2951
2952 if ((features->type == INTUOSHT2) &&
2953 (features->device_type & WACOM_DEVICETYPE_PEN))
2954 return wacom_intuos_irq(wacom);
2955 else if (len == WACOM_PKGLEN_BBTOUCH)
2956 return wacom_bpt_touch(wacom);
2957 else if (len == WACOM_PKGLEN_BBTOUCH3)
2958 return wacom_bpt3_touch(wacom);
2959 else if (len == WACOM_PKGLEN_BBFUN || len == WACOM_PKGLEN_BBPEN)
2960 return wacom_bpt_pen(wacom);
2961
2962 return 0;
2963}
2964
2965static void wacom_bamboo_pad_pen_event(struct wacom_wac *wacom,
2966 unsigned char *data)
2967{
2968 unsigned char prefix;
2969
2970 /*
2971 * We need to reroute the event from the debug interface to the
2972 * pen interface.
2973 * We need to add the report ID to the actual pen report, so we
2974 * temporary overwrite the first byte to prevent having to kzalloc/kfree
2975 * and memcpy the report.
2976 */
2977 prefix = data[0];
2978 data[0] = WACOM_REPORT_BPAD_PEN;
2979
2980 /*
2981 * actually reroute the event.
2982 * No need to check if wacom->shared->pen is valid, hid_input_report()
2983 * will check for us.
2984 */
2985 hid_input_report(wacom->shared->pen, HID_INPUT_REPORT, data,
2986 WACOM_PKGLEN_PENABLED, 1);
2987
2988 data[0] = prefix;
2989}
2990
2991static int wacom_bamboo_pad_touch_event(struct wacom_wac *wacom,
2992 unsigned char *data)
2993{
2994 struct input_dev *input = wacom->touch_input;
2995 unsigned char *finger_data, prefix;
2996 unsigned id;
2997 int x, y;
2998 bool valid;
2999
3000 prefix = data[0];
3001
3002 for (id = 0; id < wacom->features.touch_max; id++) {
3003 valid = !!(prefix & BIT(id)) &&
3004 report_touch_events(wacom);
3005
3006 input_mt_slot(input, id);
3007 input_mt_report_slot_state(input, MT_TOOL_FINGER, valid);
3008
3009 if (!valid)
3010 continue;
3011
3012 finger_data = data + 1 + id * 3;
3013 x = finger_data[0] | ((finger_data[1] & 0x0f) << 8);
3014 y = (finger_data[2] << 4) | (finger_data[1] >> 4);
3015
3016 input_report_abs(input, ABS_MT_POSITION_X, x);
3017 input_report_abs(input, ABS_MT_POSITION_Y, y);
3018 }
3019
3020 input_mt_sync_frame(input);
3021
3022 input_report_key(input, BTN_LEFT, prefix & 0x40);
3023 input_report_key(input, BTN_RIGHT, prefix & 0x80);
3024
3025 /* keep touch state for pen event */
3026 wacom->shared->touch_down = !!prefix && report_touch_events(wacom);
3027
3028 return 1;
3029}
3030
3031static int wacom_bamboo_pad_irq(struct wacom_wac *wacom, size_t len)
3032{
3033 unsigned char *data = wacom->data;
3034
3035 if (!((len == WACOM_PKGLEN_BPAD_TOUCH) ||
3036 (len == WACOM_PKGLEN_BPAD_TOUCH_USB)) ||
3037 (data[0] != WACOM_REPORT_BPAD_TOUCH))
3038 return 0;
3039
3040 if (data[1] & 0x01)
3041 wacom_bamboo_pad_pen_event(wacom, &data[1]);
3042
3043 if (data[1] & 0x02)
3044 return wacom_bamboo_pad_touch_event(wacom, &data[9]);
3045
3046 return 0;
3047}
3048
3049static int wacom_wireless_irq(struct wacom_wac *wacom, size_t len)
3050{
3051 unsigned char *data = wacom->data;
3052 int connected;
3053
3054 if (len != WACOM_PKGLEN_WIRELESS || data[0] != WACOM_REPORT_WL)
3055 return 0;
3056
3057 connected = data[1] & 0x01;
3058 if (connected) {
3059 int pid, battery, charging;
3060
3061 if ((wacom->shared->type == INTUOSHT ||
3062 wacom->shared->type == INTUOSHT2) &&
3063 wacom->shared->touch_input &&
3064 wacom->shared->touch_max) {
3065 input_report_switch(wacom->shared->touch_input,
3066 SW_MUTE_DEVICE, data[5] & 0x40);
3067 input_sync(wacom->shared->touch_input);
3068 }
3069
3070 pid = get_unaligned_be16(&data[6]);
3071 battery = (data[5] & 0x3f) * 100 / 31;
3072 charging = !!(data[5] & 0x80);
3073 if (wacom->pid != pid) {
3074 wacom->pid = pid;
3075 wacom_schedule_work(wacom, WACOM_WORKER_WIRELESS);
3076 }
3077
3078 wacom_notify_battery(wacom, WACOM_POWER_SUPPLY_STATUS_AUTO,
3079 battery, charging, 1, 0);
3080
3081 } else if (wacom->pid != 0) {
3082 /* disconnected while previously connected */
3083 wacom->pid = 0;
3084 wacom_schedule_work(wacom, WACOM_WORKER_WIRELESS);
3085 wacom_notify_battery(wacom, POWER_SUPPLY_STATUS_UNKNOWN, 0, 0, 0, 0);
3086 }
3087
3088 return 0;
3089}
3090
3091static int wacom_status_irq(struct wacom_wac *wacom_wac, size_t len)
3092{
3093 struct wacom *wacom = container_of(wacom_wac, struct wacom, wacom_wac);
3094 struct wacom_features *features = &wacom_wac->features;
3095 unsigned char *data = wacom_wac->data;
3096
3097 if (data[0] != WACOM_REPORT_USB)
3098 return 0;
3099
3100 if ((features->type == INTUOSHT ||
3101 features->type == INTUOSHT2) &&
3102 wacom_wac->shared->touch_input &&
3103 features->touch_max) {
3104 input_report_switch(wacom_wac->shared->touch_input,
3105 SW_MUTE_DEVICE, data[8] & 0x40);
3106 input_sync(wacom_wac->shared->touch_input);
3107 }
3108
3109 if (data[9] & 0x02) { /* wireless module is attached */
3110 int battery = (data[8] & 0x3f) * 100 / 31;
3111 bool charging = !!(data[8] & 0x80);
3112
3113 wacom_notify_battery(wacom_wac, WACOM_POWER_SUPPLY_STATUS_AUTO,
3114 battery, charging, battery || charging, 1);
3115
3116 if (!wacom->battery.battery &&
3117 !(features->quirks & WACOM_QUIRK_BATTERY)) {
3118 features->quirks |= WACOM_QUIRK_BATTERY;
3119 wacom_schedule_work(wacom_wac, WACOM_WORKER_BATTERY);
3120 }
3121 }
3122 else if ((features->quirks & WACOM_QUIRK_BATTERY) &&
3123 wacom->battery.battery) {
3124 features->quirks &= ~WACOM_QUIRK_BATTERY;
3125 wacom_schedule_work(wacom_wac, WACOM_WORKER_BATTERY);
3126 wacom_notify_battery(wacom_wac, POWER_SUPPLY_STATUS_UNKNOWN, 0, 0, 0, 0);
3127 }
3128 return 0;
3129}
3130
3131void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
3132{
3133 bool sync;
3134
3135 switch (wacom_wac->features.type) {
3136 case PENPARTNER:
3137 sync = wacom_penpartner_irq(wacom_wac);
3138 break;
3139
3140 case PL:
3141 sync = wacom_pl_irq(wacom_wac);
3142 break;
3143
3144 case WACOM_G4:
3145 case GRAPHIRE:
3146 case GRAPHIRE_BT:
3147 case WACOM_MO:
3148