tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Bluetooth Wacom Tablet support
3 *
4 * Copyright (c) 1999 Andreas Gal
5 * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
6 * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
7 * Copyright (c) 2006-2007 Jiri Kosina
8 * Copyright (c) 2008 Jiri Slaby <jirislaby@gmail.com>
9 * Copyright (c) 2006 Andrew Zabolotny <zap@homelink.ru>
10 * Copyright (c) 2009 Bastien Nocera <hadess@hadess.net>
11 * Copyright (c) 2011 Przemysław Firszt <przemo@firszt.eu>
12 */
13
14/*
15 * This program is free software; you can redistribute it and/or modify it
16 * under the terms of the GNU General Public License as published by the Free
17 * Software Foundation; either version 2 of the License, or (at your option)
18 * any later version.
19 */
20
21#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
22
23#include <linux/device.h>
24#include <linux/hid.h>
25#include <linux/module.h>
26#include <linux/leds.h>
27#include <linux/slab.h>
28#include <linux/power_supply.h>
29
30#include "hid-ids.h"
31
32#define PAD_DEVICE_ID 0x0F
33
34#define WAC_CMD_LED_CONTROL 0x20
35#define WAC_CMD_ICON_START_STOP 0x21
36#define WAC_CMD_ICON_TRANSFER 0x26
37
38struct wacom_data {
39 __u16 tool;
40 __u16 butstate;
41 __u8 whlstate;
42 __u8 features;
43 __u32 id;
44 __u32 serial;
45 unsigned char high_speed;
46 __u8 battery_capacity;
47 __u8 power_raw;
48 __u8 ps_connected;
49 __u8 bat_charging;
50 struct power_supply battery;
51 struct power_supply ac;
52 __u8 led_selector;
53 struct led_classdev *leds[4];
54};
55
56/*percent of battery capacity for Graphire
57 8th value means AC online and show 100% capacity */
58static unsigned short batcap_gr[8] = { 1, 15, 25, 35, 50, 70, 100, 100 };
59/*percent of battery capacity for Intuos4 WL, AC has a separate bit*/
60static unsigned short batcap_i4[8] = { 1, 15, 30, 45, 60, 70, 85, 100 };
61
62static enum power_supply_property wacom_battery_props[] = {
63 POWER_SUPPLY_PROP_PRESENT,
64 POWER_SUPPLY_PROP_CAPACITY,
65 POWER_SUPPLY_PROP_SCOPE,
66 POWER_SUPPLY_PROP_STATUS,
67};
68
69static enum power_supply_property wacom_ac_props[] = {
70 POWER_SUPPLY_PROP_PRESENT,
71 POWER_SUPPLY_PROP_ONLINE,
72 POWER_SUPPLY_PROP_SCOPE,
73};
74
75static void wacom_scramble(__u8 *image)
76{
77 __u16 mask;
78 __u16 s1;
79 __u16 s2;
80 __u16 r1 ;
81 __u16 r2 ;
82 __u16 r;
83 __u8 buf[256];
84 int i, w, x, y, z;
85
86 for (x = 0; x < 32; x++) {
87 for (y = 0; y < 8; y++)
88 buf[(8 * x) + (7 - y)] = image[(8 * x) + y];
89 }
90
91 /* Change 76543210 into GECA6420 as required by Intuos4 WL
92 * HGFEDCBA HFDB7531
93 */
94 for (x = 0; x < 4; x++) {
95 for (y = 0; y < 4; y++) {
96 for (z = 0; z < 8; z++) {
97 mask = 0x0001;
98 r1 = 0;
99 r2 = 0;
100 i = (x << 6) + (y << 4) + z;
101 s1 = buf[i];
102 s2 = buf[i+8];
103 for (w = 0; w < 8; w++) {
104 r1 |= (s1 & mask);
105 r2 |= (s2 & mask);
106 s1 <<= 1;
107 s2 <<= 1;
108 mask <<= 2;
109 }
110 r = r1 | (r2 << 1);
111 i = (x << 6) + (y << 4) + (z << 1);
112 image[i] = 0xFF & r;
113 image[i+1] = (0xFF00 & r) >> 8;
114 }
115 }
116 }
117}
118
119static void wacom_set_image(struct hid_device *hdev, const char *image,
120 __u8 icon_no)
121{
122 __u8 rep_data[68];
123 __u8 p[256];
124 int ret, i, j;
125
126 for (i = 0; i < 256; i++)
127 p[i] = image[i];
128
129 rep_data[0] = WAC_CMD_ICON_START_STOP;
130 rep_data[1] = 0;
131 ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
132 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
133 if (ret < 0)
134 goto err;
135
136 rep_data[0] = WAC_CMD_ICON_TRANSFER;
137 rep_data[1] = icon_no & 0x07;
138
139 wacom_scramble(p);
140
141 for (i = 0; i < 4; i++) {
142 for (j = 0; j < 64; j++)
143 rep_data[j + 3] = p[(i << 6) + j];
144
145 rep_data[2] = i;
146 ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 67,
147 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
148 }
149
150 rep_data[0] = WAC_CMD_ICON_START_STOP;
151 rep_data[1] = 0;
152
153 ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
154 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
155
156err:
157 return;
158}
159
160static void wacom_leds_set_brightness(struct led_classdev *led_dev,
161 enum led_brightness value)
162{
163 struct device *dev = led_dev->dev->parent;
164 struct hid_device *hdev;
165 struct wacom_data *wdata;
166 unsigned char *buf;
167 __u8 led = 0;
168 int i;
169
170 hdev = container_of(dev, struct hid_device, dev);
171 wdata = hid_get_drvdata(hdev);
172 for (i = 0; i < 4; ++i) {
173 if (wdata->leds[i] == led_dev)
174 wdata->led_selector = i;
175 }
176
177 led = wdata->led_selector | 0x04;
178 buf = kzalloc(9, GFP_KERNEL);
179 if (buf) {
180 buf[0] = WAC_CMD_LED_CONTROL;
181 buf[1] = led;
182 buf[2] = value >> 2;
183 buf[3] = value;
184 /* use fixed brightness for OLEDs */
185 buf[4] = 0x08;
186 hid_hw_raw_request(hdev, buf[0], buf, 9, HID_FEATURE_REPORT,
187 HID_REQ_SET_REPORT);
188 kfree(buf);
189 }
190
191 return;
192}
193
194static enum led_brightness wacom_leds_get_brightness(struct led_classdev *led_dev)
195{
196 struct wacom_data *wdata;
197 struct device *dev = led_dev->dev->parent;
198 int value = 0;
199 int i;
200
201 wdata = hid_get_drvdata(container_of(dev, struct hid_device, dev));
202
203 for (i = 0; i < 4; ++i) {
204 if (wdata->leds[i] == led_dev) {
205 value = wdata->leds[i]->brightness;
206 break;
207 }
208 }
209
210 return value;
211}
212
213
214static int wacom_initialize_leds(struct hid_device *hdev)
215{
216 struct wacom_data *wdata = hid_get_drvdata(hdev);
217 struct led_classdev *led;
218 struct device *dev = &hdev->dev;
219 size_t namesz = strlen(dev_name(dev)) + 12;
220 char *name;
221 int i, ret;
222
223 wdata->led_selector = 0;
224
225 for (i = 0; i < 4; i++) {
226 led = kzalloc(sizeof(struct led_classdev) + namesz, GFP_KERNEL);
227 if (!led) {
228 hid_warn(hdev,
229 "can't allocate memory for LED selector\n");
230 ret = -ENOMEM;
231 goto err;
232 }
233
234 name = (void *)&led[1];
235 snprintf(name, namesz, "%s:selector:%d", dev_name(dev), i);
236 led->name = name;
237 led->brightness = 0;
238 led->max_brightness = 127;
239 led->brightness_get = wacom_leds_get_brightness;
240 led->brightness_set = wacom_leds_set_brightness;
241
242 wdata->leds[i] = led;
243
244 ret = led_classdev_register(dev, wdata->leds[i]);
245
246 if (ret) {
247 wdata->leds[i] = NULL;
248 kfree(led);
249 hid_warn(hdev, "can't register LED\n");
250 goto err;
251 }
252 }
253
254err:
255 return ret;
256}
257
258static void wacom_destroy_leds(struct hid_device *hdev)
259{
260 struct wacom_data *wdata = hid_get_drvdata(hdev);
261 struct led_classdev *led;
262 int i;
263
264 for (i = 0; i < 4; ++i) {
265 if (wdata->leds[i]) {
266 led = wdata->leds[i];
267 wdata->leds[i] = NULL;
268 led_classdev_unregister(led);
269 kfree(led);
270 }
271 }
272
273}
274
275static int wacom_battery_get_property(struct power_supply *psy,
276 enum power_supply_property psp,
277 union power_supply_propval *val)
278{
279 struct wacom_data *wdata = container_of(psy,
280 struct wacom_data, battery);
281 int ret = 0;
282
283 switch (psp) {
284 case POWER_SUPPLY_PROP_PRESENT:
285 val->intval = 1;
286 break;
287 case POWER_SUPPLY_PROP_SCOPE:
288 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
289 break;
290 case POWER_SUPPLY_PROP_CAPACITY:
291 val->intval = wdata->battery_capacity;
292 break;
293 case POWER_SUPPLY_PROP_STATUS:
294 if (wdata->bat_charging)
295 val->intval = POWER_SUPPLY_STATUS_CHARGING;
296 else
297 if (wdata->battery_capacity == 100 && wdata->ps_connected)
298 val->intval = POWER_SUPPLY_STATUS_FULL;
299 else
300 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
301 break;
302 default:
303 ret = -EINVAL;
304 break;
305 }
306 return ret;
307}
308
309static int wacom_ac_get_property(struct power_supply *psy,
310 enum power_supply_property psp,
311 union power_supply_propval *val)
312{
313 struct wacom_data *wdata = container_of(psy, struct wacom_data, ac);
314 int ret = 0;
315
316 switch (psp) {
317 case POWER_SUPPLY_PROP_PRESENT:
318 /* fall through */
319 case POWER_SUPPLY_PROP_ONLINE:
320 val->intval = wdata->ps_connected;
321 break;
322 case POWER_SUPPLY_PROP_SCOPE:
323 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
324 break;
325 default:
326 ret = -EINVAL;
327 break;
328 }
329 return ret;
330}
331
332static void wacom_set_features(struct hid_device *hdev, u8 speed)
333{
334 struct wacom_data *wdata = hid_get_drvdata(hdev);
335 int limit, ret;
336 __u8 rep_data[2];
337
338 switch (hdev->product) {
339 case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
340 rep_data[0] = 0x03 ; rep_data[1] = 0x00;
341 limit = 3;
342 do {
343 ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
344 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
345 } while (ret < 0 && limit-- > 0);
346
347 if (ret >= 0) {
348 if (speed == 0)
349 rep_data[0] = 0x05;
350 else
351 rep_data[0] = 0x06;
352
353 rep_data[1] = 0x00;
354 limit = 3;
355 do {
356 ret = hid_hw_raw_request(hdev, rep_data[0],
357 rep_data, 2, HID_FEATURE_REPORT,
358 HID_REQ_SET_REPORT);
359 } while (ret < 0 && limit-- > 0);
360
361 if (ret >= 0) {
362 wdata->high_speed = speed;
363 return;
364 }
365 }
366
367 /*
368 * Note that if the raw queries fail, it's not a hard failure
369 * and it is safe to continue
370 */
371 hid_warn(hdev, "failed to poke device, command %d, err %d\n",
372 rep_data[0], ret);
373 break;
374 case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
375 if (speed == 1)
376 wdata->features &= ~0x20;
377 else
378 wdata->features |= 0x20;
379
380 rep_data[0] = 0x03;
381 rep_data[1] = wdata->features;
382
383 ret = hid_hw_raw_request(hdev, rep_data[0], rep_data, 2,
384 HID_FEATURE_REPORT, HID_REQ_SET_REPORT);
385 if (ret >= 0)
386 wdata->high_speed = speed;
387 break;
388 }
389
390 return;
391}
392
393static ssize_t wacom_show_speed(struct device *dev,
394 struct device_attribute
395 *attr, char *buf)
396{
397 struct wacom_data *wdata = dev_get_drvdata(dev);
398
399 return snprintf(buf, PAGE_SIZE, "%i\n", wdata->high_speed);
400}
401
402static ssize_t wacom_store_speed(struct device *dev,
403 struct device_attribute *attr,
404 const char *buf, size_t count)
405{
406 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
407 int new_speed;
408
409 if (sscanf(buf, "%1d", &new_speed ) != 1)
410 return -EINVAL;
411
412 if (new_speed == 0 || new_speed == 1) {
413 wacom_set_features(hdev, new_speed);
414 return strnlen(buf, PAGE_SIZE);
415 } else
416 return -EINVAL;
417}
418
419static DEVICE_ATTR(speed, S_IRUGO | S_IWUSR | S_IWGRP,
420 wacom_show_speed, wacom_store_speed);
421
422#define WACOM_STORE(OLED_ID) \
423static ssize_t wacom_oled##OLED_ID##_store(struct device *dev, \
424 struct device_attribute *attr, \
425 const char *buf, size_t count) \
426{ \
427 struct hid_device *hdev = container_of(dev, struct hid_device, \
428 dev); \
429 \
430 if (count != 256) \
431 return -EINVAL; \
432 \
433 wacom_set_image(hdev, buf, OLED_ID); \
434 \
435 return count; \
436} \
437 \
438static DEVICE_ATTR(oled##OLED_ID##_img, S_IWUSR | S_IWGRP, NULL, \
439 wacom_oled##OLED_ID##_store)
440
441WACOM_STORE(0);
442WACOM_STORE(1);
443WACOM_STORE(2);
444WACOM_STORE(3);
445WACOM_STORE(4);
446WACOM_STORE(5);
447WACOM_STORE(6);
448WACOM_STORE(7);
449
450static int wacom_gr_parse_report(struct hid_device *hdev,
451 struct wacom_data *wdata,
452 struct input_dev *input, unsigned char *data)
453{
454 int tool, x, y, rw;
455
456 tool = 0;
457 /* Get X & Y positions */
458 x = le16_to_cpu(*(__le16 *) &data[2]);
459 y = le16_to_cpu(*(__le16 *) &data[4]);
460
461 /* Get current tool identifier */
462 if (data[1] & 0x90) { /* If pen is in the in/active area */
463 switch ((data[1] >> 5) & 3) {
464 case 0: /* Pen */
465 tool = BTN_TOOL_PEN;
466 break;
467
468 case 1: /* Rubber */
469 tool = BTN_TOOL_RUBBER;
470 break;
471
472 case 2: /* Mouse with wheel */
473 case 3: /* Mouse without wheel */
474 tool = BTN_TOOL_MOUSE;
475 break;
476 }
477
478 /* Reset tool if out of active tablet area */
479 if (!(data[1] & 0x10))
480 tool = 0;
481 }
482
483 /* If tool changed, notify input subsystem */
484 if (wdata->tool != tool) {
485 if (wdata->tool) {
486 /* Completely reset old tool state */
487 if (wdata->tool == BTN_TOOL_MOUSE) {
488 input_report_key(input, BTN_LEFT, 0);
489 input_report_key(input, BTN_RIGHT, 0);
490 input_report_key(input, BTN_MIDDLE, 0);
491 input_report_abs(input, ABS_DISTANCE,
492 input_abs_get_max(input, ABS_DISTANCE));
493 } else {
494 input_report_key(input, BTN_TOUCH, 0);
495 input_report_key(input, BTN_STYLUS, 0);
496 input_report_key(input, BTN_STYLUS2, 0);
497 input_report_abs(input, ABS_PRESSURE, 0);
498 }
499 input_report_key(input, wdata->tool, 0);
500 input_sync(input);
501 }
502 wdata->tool = tool;
503 if (tool)
504 input_report_key(input, tool, 1);
505 }
506
507 if (tool) {
508 input_report_abs(input, ABS_X, x);
509 input_report_abs(input, ABS_Y, y);
510
511 switch ((data[1] >> 5) & 3) {
512 case 2: /* Mouse with wheel */
513 input_report_key(input, BTN_MIDDLE, data[1] & 0x04);
514 rw = (data[6] & 0x01) ? -1 :
515 (data[6] & 0x02) ? 1 : 0;
516 input_report_rel(input, REL_WHEEL, rw);
517 /* fall through */
518
519 case 3: /* Mouse without wheel */
520 input_report_key(input, BTN_LEFT, data[1] & 0x01);
521 input_report_key(input, BTN_RIGHT, data[1] & 0x02);
522 /* Compute distance between mouse and tablet */
523 rw = 44 - (data[6] >> 2);
524 if (rw < 0)
525 rw = 0;
526 else if (rw > 31)
527 rw = 31;
528 input_report_abs(input, ABS_DISTANCE, rw);
529 break;
530
531 default:
532 input_report_abs(input, ABS_PRESSURE,
533 data[6] | (((__u16) (data[1] & 0x08)) << 5));
534 input_report_key(input, BTN_TOUCH, data[1] & 0x01);
535 input_report_key(input, BTN_STYLUS, data[1] & 0x02);
536 input_report_key(input, BTN_STYLUS2, (tool == BTN_TOOL_PEN) && data[1] & 0x04);
537 break;
538 }
539
540 input_sync(input);
541 }
542
543 /* Report the state of the two buttons at the top of the tablet
544 * as two extra fingerpad keys (buttons 4 & 5). */
545 rw = data[7] & 0x03;
546 if (rw != wdata->butstate) {
547 wdata->butstate = rw;
548 input_report_key(input, BTN_0, rw & 0x02);
549 input_report_key(input, BTN_1, rw & 0x01);
550 input_report_key(input, BTN_TOOL_FINGER, 0xf0);
551 input_event(input, EV_MSC, MSC_SERIAL, 0xf0);
552 input_sync(input);
553 }
554
555 /* Store current battery capacity and power supply state*/
556 rw = (data[7] >> 2 & 0x07);
557 if (rw != wdata->power_raw) {
558 wdata->power_raw = rw;
559 wdata->battery_capacity = batcap_gr[rw];
560 if (rw == 7)
561 wdata->ps_connected = 1;
562 else
563 wdata->ps_connected = 0;
564 }
565 return 1;
566}
567
568static void wacom_i4_parse_button_report(struct wacom_data *wdata,
569 struct input_dev *input, unsigned char *data)
570{
571 __u16 new_butstate;
572 __u8 new_whlstate;
573 __u8 sync = 0;
574
575 new_whlstate = data[1];
576 if (new_whlstate != wdata->whlstate) {
577 wdata->whlstate = new_whlstate;
578 if (new_whlstate & 0x80) {
579 input_report_key(input, BTN_TOUCH, 1);
580 input_report_abs(input, ABS_WHEEL, (new_whlstate & 0x7f));
581 input_report_key(input, BTN_TOOL_FINGER, 1);
582 } else {
583 input_report_key(input, BTN_TOUCH, 0);
584 input_report_abs(input, ABS_WHEEL, 0);
585 input_report_key(input, BTN_TOOL_FINGER, 0);
586 }
587 sync = 1;
588 }
589
590 new_butstate = (data[3] << 1) | (data[2] & 0x01);
591 if (new_butstate != wdata->butstate) {
592 wdata->butstate = new_butstate;
593 input_report_key(input, BTN_0, new_butstate & 0x001);
594 input_report_key(input, BTN_1, new_butstate & 0x002);
595 input_report_key(input, BTN_2, new_butstate & 0x004);
596 input_report_key(input, BTN_3, new_butstate & 0x008);
597 input_report_key(input, BTN_4, new_butstate & 0x010);
598 input_report_key(input, BTN_5, new_butstate & 0x020);
599 input_report_key(input, BTN_6, new_butstate & 0x040);
600 input_report_key(input, BTN_7, new_butstate & 0x080);
601 input_report_key(input, BTN_8, new_butstate & 0x100);
602 input_report_key(input, BTN_TOOL_FINGER, 1);
603 sync = 1;
604 }
605
606 if (sync) {
607 input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
608 input_event(input, EV_MSC, MSC_SERIAL, 0xffffffff);
609 input_sync(input);
610 }
611}
612
613static void wacom_i4_parse_pen_report(struct wacom_data *wdata,
614 struct input_dev *input, unsigned char *data)
615{
616 __u16 x, y, pressure;
617 __u8 distance;
618 __u8 tilt_x, tilt_y;
619
620 switch (data[1]) {
621 case 0x80: /* Out of proximity report */
622 input_report_key(input, BTN_TOUCH, 0);
623 input_report_abs(input, ABS_PRESSURE, 0);
624 input_report_key(input, BTN_STYLUS, 0);
625 input_report_key(input, BTN_STYLUS2, 0);
626 input_report_key(input, wdata->tool, 0);
627 input_report_abs(input, ABS_MISC, 0);
628 input_event(input, EV_MSC, MSC_SERIAL, wdata->serial);
629 wdata->tool = 0;
630 input_sync(input);
631 break;
632 case 0xC2: /* Tool report */
633 wdata->id = ((data[2] << 4) | (data[3] >> 4) |
634 ((data[7] & 0x0f) << 20) |
635 ((data[8] & 0xf0) << 12));
636 wdata->serial = ((data[3] & 0x0f) << 28) +
637 (data[4] << 20) + (data[5] << 12) +
638 (data[6] << 4) + (data[7] >> 4);
639
640 switch (wdata->id) {
641 case 0x100802:
642 wdata->tool = BTN_TOOL_PEN;
643 break;
644 case 0x10080A:
645 wdata->tool = BTN_TOOL_RUBBER;
646 break;
647 }
648 break;
649 default: /* Position/pressure report */
650 x = data[2] << 9 | data[3] << 1 | ((data[9] & 0x02) >> 1);
651 y = data[4] << 9 | data[5] << 1 | (data[9] & 0x01);
652 pressure = (data[6] << 3) | ((data[7] & 0xC0) >> 5)
653 | (data[1] & 0x01);
654 distance = (data[9] >> 2) & 0x3f;
655 tilt_x = ((data[7] << 1) & 0x7e) | (data[8] >> 7);
656 tilt_y = data[8] & 0x7f;
657
658 input_report_key(input, BTN_TOUCH, pressure > 1);
659
660 input_report_key(input, BTN_STYLUS, data[1] & 0x02);
661 input_report_key(input, BTN_STYLUS2, data[1] & 0x04);
662 input_report_key(input, wdata->tool, 1);
663 input_report_abs(input, ABS_X, x);
664 input_report_abs(input, ABS_Y, y);
665 input_report_abs(input, ABS_PRESSURE, pressure);
666 input_report_abs(input, ABS_DISTANCE, distance);
667 input_report_abs(input, ABS_TILT_X, tilt_x);
668 input_report_abs(input, ABS_TILT_Y, tilt_y);
669 input_report_abs(input, ABS_MISC, wdata->id);
670 input_event(input, EV_MSC, MSC_SERIAL, wdata->serial);
671 input_report_key(input, wdata->tool, 1);
672 input_sync(input);
673 break;
674 }
675
676 return;
677}
678
679static void wacom_i4_parse_report(struct hid_device *hdev,
680 struct wacom_data *wdata,
681 struct input_dev *input, unsigned char *data)
682{
683 switch (data[0]) {
684 case 0x00: /* Empty report */
685 break;
686 case 0x02: /* Pen report */
687 wacom_i4_parse_pen_report(wdata, input, data);
688 break;
689 case 0x03: /* Features Report */
690 wdata->features = data[2];
691 break;
692 case 0x0C: /* Button report */
693 wacom_i4_parse_button_report(wdata, input, data);
694 break;
695 default:
696 hid_err(hdev, "Unknown report: %d,%d\n", data[0], data[1]);
697 break;
698 }
699}
700
701static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
702 u8 *raw_data, int size)
703{
704 struct wacom_data *wdata = hid_get_drvdata(hdev);
705 struct hid_input *hidinput;
706 struct input_dev *input;
707 unsigned char *data = (unsigned char *) raw_data;
708 int i;
709 __u8 power_raw;
710
711 if (!(hdev->claimed & HID_CLAIMED_INPUT))
712 return 0;
713
714 hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
715 input = hidinput->input;
716
717 switch (hdev->product) {
718 case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
719 if (data[0] == 0x03) {
720 return wacom_gr_parse_report(hdev, wdata, input, data);
721 } else {
722 hid_err(hdev, "Unknown report: %d,%d size:%d\n",
723 data[0], data[1], size);
724 return 0;
725 }
726 break;
727 case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
728 i = 1;
729
730 switch (data[0]) {
731 case 0x04:
732 wacom_i4_parse_report(hdev, wdata, input, data + i);
733 i += 10;
734 /* fall through */
735 case 0x03:
736 wacom_i4_parse_report(hdev, wdata, input, data + i);
737 i += 10;
738 wacom_i4_parse_report(hdev, wdata, input, data + i);
739 power_raw = data[i+10];
740 if (power_raw != wdata->power_raw) {
741 wdata->power_raw = power_raw;
742 wdata->battery_capacity = batcap_i4[power_raw & 0x07];
743 wdata->bat_charging = (power_raw & 0x08) ? 1 : 0;
744 wdata->ps_connected = (power_raw & 0x10) ? 1 : 0;
745 }
746
747 break;
748 default:
749 hid_err(hdev, "Unknown report: %d,%d size:%d\n",
750 data[0], data[1], size);
751 return 0;
752 }
753 }
754 return 1;
755}
756
757static int wacom_input_mapped(struct hid_device *hdev, struct hid_input *hi,
758 struct hid_field *field, struct hid_usage *usage, unsigned long **bit,
759 int *max)
760{
761 struct input_dev *input = hi->input;
762
763 __set_bit(INPUT_PROP_POINTER, input->propbit);
764
765 /* Basics */
766 input->evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS) | BIT(EV_REL);
767
768 __set_bit(REL_WHEEL, input->relbit);
769
770 __set_bit(BTN_TOOL_PEN, input->keybit);
771 __set_bit(BTN_TOUCH, input->keybit);
772 __set_bit(BTN_STYLUS, input->keybit);
773 __set_bit(BTN_STYLUS2, input->keybit);
774 __set_bit(BTN_LEFT, input->keybit);
775 __set_bit(BTN_RIGHT, input->keybit);
776 __set_bit(BTN_MIDDLE, input->keybit);
777
778 /* Pad */
779 input_set_capability(input, EV_MSC, MSC_SERIAL);
780
781 __set_bit(BTN_0, input->keybit);
782 __set_bit(BTN_1, input->keybit);
783 __set_bit(BTN_TOOL_FINGER, input->keybit);
784
785 /* Distance, rubber and mouse */
786 __set_bit(BTN_TOOL_RUBBER, input->keybit);
787 __set_bit(BTN_TOOL_MOUSE, input->keybit);
788
789 switch (hdev->product) {
790 case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
791 input_set_abs_params(input, ABS_X, 0, 16704, 4, 0);
792 input_set_abs_params(input, ABS_Y, 0, 12064, 4, 0);
793 input_set_abs_params(input, ABS_PRESSURE, 0, 511, 0, 0);
794 input_set_abs_params(input, ABS_DISTANCE, 0, 32, 0, 0);
795 break;
796 case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
797 __set_bit(ABS_WHEEL, input->absbit);
798 __set_bit(ABS_MISC, input->absbit);
799 __set_bit(BTN_2, input->keybit);
800 __set_bit(BTN_3, input->keybit);
801 __set_bit(BTN_4, input->keybit);
802 __set_bit(BTN_5, input->keybit);
803 __set_bit(BTN_6, input->keybit);
804 __set_bit(BTN_7, input->keybit);
805 __set_bit(BTN_8, input->keybit);
806 input_set_abs_params(input, ABS_WHEEL, 0, 71, 0, 0);
807 input_set_abs_params(input, ABS_X, 0, 40640, 4, 0);
808 input_set_abs_params(input, ABS_Y, 0, 25400, 4, 0);
809 input_set_abs_params(input, ABS_PRESSURE, 0, 2047, 0, 0);
810 input_set_abs_params(input, ABS_DISTANCE, 0, 63, 0, 0);
811 input_set_abs_params(input, ABS_TILT_X, 0, 127, 0, 0);
812 input_set_abs_params(input, ABS_TILT_Y, 0, 127, 0, 0);
813 break;
814 }
815
816 return 0;
817}
818
819static int wacom_probe(struct hid_device *hdev,
820 const struct hid_device_id *id)
821{
822 struct wacom_data *wdata;
823 int ret;
824
825 wdata = kzalloc(sizeof(*wdata), GFP_KERNEL);
826 if (wdata == NULL) {
827 hid_err(hdev, "can't alloc wacom descriptor\n");
828 return -ENOMEM;
829 }
830
831 hid_set_drvdata(hdev, wdata);
832
833 /* Parse the HID report now */
834 ret = hid_parse(hdev);
835 if (ret) {
836 hid_err(hdev, "parse failed\n");
837 goto err_free;
838 }
839
840 ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
841 if (ret) {
842 hid_err(hdev, "hw start failed\n");
843 goto err_free;
844 }
845
846 ret = device_create_file(&hdev->dev, &dev_attr_speed);
847 if (ret)
848 hid_warn(hdev,
849 "can't create sysfs speed attribute err: %d\n", ret);
850
851#define OLED_INIT(OLED_ID) \
852 do { \
853 ret = device_create_file(&hdev->dev, \
854 &dev_attr_oled##OLED_ID##_img); \
855 if (ret) \
856 hid_warn(hdev, \
857 "can't create sysfs oled attribute, err: %d\n", ret);\
858 } while (0)
859
860OLED_INIT(0);
861OLED_INIT(1);
862OLED_INIT(2);
863OLED_INIT(3);
864OLED_INIT(4);
865OLED_INIT(5);
866OLED_INIT(6);
867OLED_INIT(7);
868
869 wdata->features = 0;
870 wacom_set_features(hdev, 1);
871
872 if (hdev->product == USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) {
873 sprintf(hdev->name, "%s", "Wacom Intuos4 WL");
874 ret = wacom_initialize_leds(hdev);
875 if (ret)
876 hid_warn(hdev,
877 "can't create led attribute, err: %d\n", ret);
878 }
879
880 wdata->battery.properties = wacom_battery_props;
881 wdata->battery.num_properties = ARRAY_SIZE(wacom_battery_props);
882 wdata->battery.get_property = wacom_battery_get_property;
883 wdata->battery.name = "wacom_battery";
884 wdata->battery.type = POWER_SUPPLY_TYPE_BATTERY;
885 wdata->battery.use_for_apm = 0;
886
887
888 ret = power_supply_register(&hdev->dev, &wdata->battery);
889 if (ret) {
890 hid_err(hdev, "can't create sysfs battery attribute, err: %d\n",
891 ret);
892 goto err_battery;
893 }
894
895 power_supply_powers(&wdata->battery, &hdev->dev);
896
897 wdata->ac.properties = wacom_ac_props;
898 wdata->ac.num_properties = ARRAY_SIZE(wacom_ac_props);
899 wdata->ac.get_property = wacom_ac_get_property;
900 wdata->ac.name = "wacom_ac";
901 wdata->ac.type = POWER_SUPPLY_TYPE_MAINS;
902 wdata->ac.use_for_apm = 0;
903
904 ret = power_supply_register(&hdev->dev, &wdata->ac);
905 if (ret) {
906 hid_err(hdev,
907 "can't create ac battery attribute, err: %d\n", ret);
908 goto err_ac;
909 }
910
911 power_supply_powers(&wdata->ac, &hdev->dev);
912 return 0;
913
914err_ac:
915 power_supply_unregister(&wdata->battery);
916err_battery:
917 wacom_destroy_leds(hdev);
918 device_remove_file(&hdev->dev, &dev_attr_oled0_img);
919 device_remove_file(&hdev->dev, &dev_attr_oled1_img);
920 device_remove_file(&hdev->dev, &dev_attr_oled2_img);
921 device_remove_file(&hdev->dev, &dev_attr_oled3_img);
922 device_remove_file(&hdev->dev, &dev_attr_oled4_img);
923 device_remove_file(&hdev->dev, &dev_attr_oled5_img);
924 device_remove_file(&hdev->dev, &dev_attr_oled6_img);
925 device_remove_file(&hdev->dev, &dev_attr_oled7_img);
926 device_remove_file(&hdev->dev, &dev_attr_speed);
927 hid_hw_stop(hdev);
928err_free:
929 kfree(wdata);
930 return ret;
931}
932
933static void wacom_remove(struct hid_device *hdev)
934{
935 struct wacom_data *wdata = hid_get_drvdata(hdev);
936
937 wacom_destroy_leds(hdev);
938 device_remove_file(&hdev->dev, &dev_attr_oled0_img);
939 device_remove_file(&hdev->dev, &dev_attr_oled1_img);
940 device_remove_file(&hdev->dev, &dev_attr_oled2_img);
941 device_remove_file(&hdev->dev, &dev_attr_oled3_img);
942 device_remove_file(&hdev->dev, &dev_attr_oled4_img);
943 device_remove_file(&hdev->dev, &dev_attr_oled5_img);
944 device_remove_file(&hdev->dev, &dev_attr_oled6_img);
945 device_remove_file(&hdev->dev, &dev_attr_oled7_img);
946 device_remove_file(&hdev->dev, &dev_attr_speed);
947 hid_hw_stop(hdev);
948
949 power_supply_unregister(&wdata->battery);
950 power_supply_unregister(&wdata->ac);
951 kfree(hid_get_drvdata(hdev));
952}
953
954static const struct hid_device_id wacom_devices[] = {
955 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
956 { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
957
958 { }
959};
960MODULE_DEVICE_TABLE(hid, wacom_devices);
961
962static struct hid_driver wacom_driver = {
963 .name = "wacom",
964 .id_table = wacom_devices,
965 .probe = wacom_probe,
966 .remove = wacom_remove,
967 .raw_event = wacom_raw_event,
968 .input_mapped = wacom_input_mapped,
969};
970module_hid_driver(wacom_driver);
971
972MODULE_DESCRIPTION("Driver for Wacom Graphire Bluetooth and Wacom Intuos4 WL");
973MODULE_LICENSE("GPL");