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Input: wacom - don't retrieve touch_max when it is predefined
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CommitLineData
3bea733a 1/*
4104d13f 2 * drivers/input/tablet/wacom_sys.c
3bea733a 3 *
232f5693 4 * USB Wacom tablet support - system specific code
3bea733a
PC
5 */
6
7/*
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License as published by
10 * the Free Software Foundation; either version 2 of the License, or
11 * (at your option) any later version.
12 */
13
3bea733a 14#include "wacom_wac.h"
51269fe8 15#include "wacom.h"
3bea733a 16
545f4e99
PC
17/* defines to get HID report descriptor */
18#define HID_DEVICET_HID (USB_TYPE_CLASS | 0x01)
19#define HID_DEVICET_REPORT (USB_TYPE_CLASS | 0x02)
20#define HID_USAGE_UNDEFINED 0x00
21#define HID_USAGE_PAGE 0x05
22#define HID_USAGE_PAGE_DIGITIZER 0x0d
23#define HID_USAGE_PAGE_DESKTOP 0x01
24#define HID_USAGE 0x09
25#define HID_USAGE_X 0x30
26#define HID_USAGE_Y 0x31
27#define HID_USAGE_X_TILT 0x3d
28#define HID_USAGE_Y_TILT 0x3e
29#define HID_USAGE_FINGER 0x22
30#define HID_USAGE_STYLUS 0x20
f393ee2b 31#define HID_USAGE_CONTACTMAX 0x55
4134361a
CB
32#define HID_COLLECTION 0xa1
33#define HID_COLLECTION_LOGICAL 0x02
34#define HID_COLLECTION_END 0xc0
545f4e99
PC
35
36enum {
37 WCM_UNDEFINED = 0,
38 WCM_DESKTOP,
39 WCM_DIGITIZER,
40};
41
42struct hid_descriptor {
43 struct usb_descriptor_header header;
44 __le16 bcdHID;
45 u8 bCountryCode;
46 u8 bNumDescriptors;
47 u8 bDescriptorType;
48 __le16 wDescriptorLength;
49} __attribute__ ((packed));
50
51/* defines to get/set USB message */
3bea733a
PC
52#define USB_REQ_GET_REPORT 0x01
53#define USB_REQ_SET_REPORT 0x09
5d7e7d47 54
545f4e99 55#define WAC_HID_FEATURE_REPORT 0x03
a417ea44 56#define WAC_MSG_RETRIES 5
3bea733a 57
5d7e7d47
EH
58#define WAC_CMD_LED_CONTROL 0x20
59#define WAC_CMD_ICON_START 0x21
60#define WAC_CMD_ICON_XFER 0x23
61#define WAC_CMD_RETRIES 10
62
63static int wacom_get_report(struct usb_interface *intf, u8 type, u8 id,
64 void *buf, size_t size, unsigned int retries)
3bea733a 65{
5d7e7d47
EH
66 struct usb_device *dev = interface_to_usbdev(intf);
67 int retval;
68
69 do {
70 retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
71 USB_REQ_GET_REPORT,
6e8ec537
CB
72 USB_DIR_IN | USB_TYPE_CLASS |
73 USB_RECIP_INTERFACE,
5d7e7d47
EH
74 (type << 8) + id,
75 intf->altsetting[0].desc.bInterfaceNumber,
76 buf, size, 100);
77 } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries);
78
79 return retval;
3bea733a
PC
80}
81
5d7e7d47
EH
82static int wacom_set_report(struct usb_interface *intf, u8 type, u8 id,
83 void *buf, size_t size, unsigned int retries)
3bea733a 84{
5d7e7d47
EH
85 struct usb_device *dev = interface_to_usbdev(intf);
86 int retval;
87
88 do {
89 retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0),
90 USB_REQ_SET_REPORT,
91 USB_TYPE_CLASS | USB_RECIP_INTERFACE,
92 (type << 8) + id,
93 intf->altsetting[0].desc.bInterfaceNumber,
94 buf, size, 1000);
95 } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries);
96
97 return retval;
3bea733a
PC
98}
99
54c9b226 100static void wacom_sys_irq(struct urb *urb)
3bea733a
PC
101{
102 struct wacom *wacom = urb->context;
3bea733a
PC
103 int retval;
104
105 switch (urb->status) {
106 case 0:
107 /* success */
108 break;
109 case -ECONNRESET:
110 case -ENOENT:
111 case -ESHUTDOWN:
112 /* this urb is terminated, clean up */
ea3e6c59 113 dbg("%s - urb shutting down with status: %d", __func__, urb->status);
3bea733a
PC
114 return;
115 default:
ea3e6c59 116 dbg("%s - nonzero urb status received: %d", __func__, urb->status);
3bea733a
PC
117 goto exit;
118 }
119
95dd3b30 120 wacom_wac_irq(&wacom->wacom_wac, urb->actual_length);
3bea733a
PC
121
122 exit:
e7224094 123 usb_mark_last_busy(wacom->usbdev);
73a97f4f 124 retval = usb_submit_urb(urb, GFP_ATOMIC);
3bea733a
PC
125 if (retval)
126 err ("%s - usb_submit_urb failed with result %d",
ea3e6c59 127 __func__, retval);
3bea733a
PC
128}
129
3bea733a
PC
130static int wacom_open(struct input_dev *dev)
131{
7791bdae 132 struct wacom *wacom = input_get_drvdata(dev);
f6cd3783 133 int retval = 0;
3bea733a 134
f6cd3783 135 if (usb_autopm_get_interface(wacom->intf) < 0)
3bea733a 136 return -EIO;
f6cd3783
DT
137
138 mutex_lock(&wacom->lock);
e7224094
ON
139
140 if (usb_submit_urb(wacom->irq, GFP_KERNEL)) {
f6cd3783
DT
141 retval = -EIO;
142 goto out;
e7224094
ON
143 }
144
51269fe8 145 wacom->open = true;
e7224094 146 wacom->intf->needs_remote_wakeup = 1;
3bea733a 147
f6cd3783 148out:
e7224094 149 mutex_unlock(&wacom->lock);
62ecae09 150 usb_autopm_put_interface(wacom->intf);
f6cd3783 151 return retval;
3bea733a
PC
152}
153
154static void wacom_close(struct input_dev *dev)
155{
7791bdae 156 struct wacom *wacom = input_get_drvdata(dev);
62ecae09
DT
157 int autopm_error;
158
159 autopm_error = usb_autopm_get_interface(wacom->intf);
3bea733a 160
e7224094 161 mutex_lock(&wacom->lock);
3bea733a 162 usb_kill_urb(wacom->irq);
51269fe8 163 wacom->open = false;
e7224094
ON
164 wacom->intf->needs_remote_wakeup = 0;
165 mutex_unlock(&wacom->lock);
f6cd3783 166
62ecae09
DT
167 if (!autopm_error)
168 usb_autopm_put_interface(wacom->intf);
3bea733a
PC
169}
170
16bf288c
CB
171/*
172 * Static values for max X/Y and resolution of Pen interface is stored in
173 * features. This mean physical size of active area can be computed.
174 * This is useful to do when Pen and Touch have same active area of tablet.
175 * This means for Touch device, we only need to find max X/Y value and we
176 * have enough information to compute resolution of touch.
177 */
178static void wacom_set_phy_from_res(struct wacom_features *features)
179{
180 features->x_phy = (features->x_max * 100) / features->x_resolution;
181 features->y_phy = (features->y_max * 100) / features->y_resolution;
182}
183
4134361a
CB
184static int wacom_parse_logical_collection(unsigned char *report,
185 struct wacom_features *features)
186{
187 int length = 0;
188
189 if (features->type == BAMBOO_PT) {
190
191 /* Logical collection is only used by 3rd gen Bamboo Touch */
192 features->pktlen = WACOM_PKGLEN_BBTOUCH3;
8b4a0c1f 193 features->device_type = BTN_TOOL_FINGER;
4134361a 194
16bf288c 195 wacom_set_phy_from_res(features);
4134361a
CB
196
197 features->x_max = features->y_max =
198 get_unaligned_le16(&report[10]);
199
200 length = 11;
201 }
202 return length;
203}
204
f393ee2b
PC
205static void wacom_retrieve_report_data(struct usb_interface *intf,
206 struct wacom_features *features)
207{
208 int result = 0;
209 unsigned char *rep_data;
210
211 rep_data = kmalloc(2, GFP_KERNEL);
212 if (rep_data) {
213
214 rep_data[0] = 12;
215 result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT,
61c91dd4 216 rep_data[0], rep_data, 2,
f393ee2b
PC
217 WAC_MSG_RETRIES);
218
219 if (result >= 0 && rep_data[1] > 2)
220 features->touch_max = rep_data[1];
221
222 kfree(rep_data);
223 }
224}
225
428f8588
CB
226/*
227 * Interface Descriptor of wacom devices can be incomplete and
228 * inconsistent so wacom_features table is used to store stylus
229 * device's packet lengths, various maximum values, and tablet
230 * resolution based on product ID's.
231 *
232 * For devices that contain 2 interfaces, wacom_features table is
233 * inaccurate for the touch interface. Since the Interface Descriptor
234 * for touch interfaces has pretty complete data, this function exists
235 * to query tablet for this missing information instead of hard coding in
236 * an additional table.
237 *
238 * A typical Interface Descriptor for a stylus will contain a
239 * boot mouse application collection that is not of interest and this
240 * function will ignore it.
241 *
242 * It also contains a digitizer application collection that also is not
243 * of interest since any information it contains would be duplicate
244 * of what is in wacom_features. Usually it defines a report of an array
245 * of bytes that could be used as max length of the stylus packet returned.
246 * If it happens to define a Digitizer-Stylus Physical Collection then
247 * the X and Y logical values contain valid data but it is ignored.
248 *
249 * A typical Interface Descriptor for a touch interface will contain a
250 * Digitizer-Finger Physical Collection which will define both logical
251 * X/Y maximum as well as the physical size of tablet. Since touch
252 * interfaces haven't supported pressure or distance, this is enough
253 * information to override invalid values in the wacom_features table.
4134361a
CB
254 *
255 * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical
256 * Collection. Instead they define a Logical Collection with a single
257 * Logical Maximum for both X and Y.
ae584ca4
JG
258 *
259 * Intuos5 touch interface does not contain useful data. We deal with
260 * this after returning from this function.
428f8588
CB
261 */
262static int wacom_parse_hid(struct usb_interface *intf,
263 struct hid_descriptor *hid_desc,
ec67bbed 264 struct wacom_features *features)
545f4e99
PC
265{
266 struct usb_device *dev = interface_to_usbdev(intf);
ec67bbed
PC
267 char limit = 0;
268 /* result has to be defined as int for some devices */
269 int result = 0;
545f4e99
PC
270 int i = 0, usage = WCM_UNDEFINED, finger = 0, pen = 0;
271 unsigned char *report;
272
273 report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL);
274 if (!report)
275 return -ENOMEM;
276
277 /* retrive report descriptors */
278 do {
279 result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
280 USB_REQ_GET_DESCRIPTOR,
281 USB_RECIP_INTERFACE | USB_DIR_IN,
282 HID_DEVICET_REPORT << 8,
283 intf->altsetting[0].desc.bInterfaceNumber, /* interface */
284 report,
285 hid_desc->wDescriptorLength,
286 5000); /* 5 secs */
a417ea44 287 } while (result < 0 && limit++ < WAC_MSG_RETRIES);
545f4e99 288
384318ec 289 /* No need to parse the Descriptor. It isn't an error though */
545f4e99
PC
290 if (result < 0)
291 goto out;
292
293 for (i = 0; i < hid_desc->wDescriptorLength; i++) {
294
295 switch (report[i]) {
296 case HID_USAGE_PAGE:
297 switch (report[i + 1]) {
298 case HID_USAGE_PAGE_DIGITIZER:
299 usage = WCM_DIGITIZER;
300 i++;
301 break;
302
303 case HID_USAGE_PAGE_DESKTOP:
304 usage = WCM_DESKTOP;
305 i++;
306 break;
307 }
308 break;
309
310 case HID_USAGE:
311 switch (report[i + 1]) {
312 case HID_USAGE_X:
313 if (usage == WCM_DESKTOP) {
314 if (finger) {
84eb5aa6 315 features->device_type = BTN_TOOL_FINGER;
ec67bbed
PC
316 if (features->type == TABLETPC2FG) {
317 /* need to reset back */
318 features->pktlen = WACOM_PKGLEN_TPC2FG;
ec67bbed 319 }
1963518b
PC
320
321 if (features->type == MTSCREEN)
322 features->pktlen = WACOM_PKGLEN_MTOUCH;
323
4a88081e
PC
324 if (features->type == BAMBOO_PT) {
325 /* need to reset back */
326 features->pktlen = WACOM_PKGLEN_BBTOUCH;
4a88081e
PC
327 features->x_phy =
328 get_unaligned_le16(&report[i + 5]);
329 features->x_max =
330 get_unaligned_le16(&report[i + 8]);
331 i += 15;
332 } else {
333 features->x_max =
334 get_unaligned_le16(&report[i + 3]);
335 features->x_phy =
336 get_unaligned_le16(&report[i + 6]);
337 features->unit = report[i + 9];
338 features->unitExpo = report[i + 11];
339 i += 12;
340 }
545f4e99 341 } else if (pen) {
ec67bbed
PC
342 /* penabled only accepts exact bytes of data */
343 if (features->type == TABLETPC2FG)
57e413d9 344 features->pktlen = WACOM_PKGLEN_GRAPHIRE;
ec67bbed 345 features->device_type = BTN_TOOL_PEN;
545f4e99 346 features->x_max =
252f7769 347 get_unaligned_le16(&report[i + 3]);
545f4e99
PC
348 i += 4;
349 }
545f4e99
PC
350 }
351 break;
352
353 case HID_USAGE_Y:
ec67bbed
PC
354 if (usage == WCM_DESKTOP) {
355 if (finger) {
1963518b
PC
356 int type = features->type;
357
358 if (type == TABLETPC2FG || type == MTSCREEN) {
ec67bbed 359 features->y_max =
252f7769 360 get_unaligned_le16(&report[i + 3]);
ec67bbed 361 features->y_phy =
252f7769 362 get_unaligned_le16(&report[i + 6]);
ec67bbed 363 i += 7;
1963518b 364 } else if (type == BAMBOO_PT) {
4a88081e
PC
365 features->y_phy =
366 get_unaligned_le16(&report[i + 3]);
367 features->y_max =
368 get_unaligned_le16(&report[i + 6]);
369 i += 12;
ec67bbed
PC
370 } else {
371 features->y_max =
372 features->x_max;
373 features->y_phy =
252f7769 374 get_unaligned_le16(&report[i + 3]);
ec67bbed
PC
375 i += 4;
376 }
377 } else if (pen) {
ec67bbed 378 features->y_max =
252f7769 379 get_unaligned_le16(&report[i + 3]);
ec67bbed
PC
380 i += 4;
381 }
382 }
545f4e99
PC
383 break;
384
385 case HID_USAGE_FINGER:
386 finger = 1;
387 i++;
388 break;
389
428f8588
CB
390 /*
391 * Requiring Stylus Usage will ignore boot mouse
392 * X/Y values and some cases of invalid Digitizer X/Y
393 * values commonly reported.
394 */
545f4e99
PC
395 case HID_USAGE_STYLUS:
396 pen = 1;
397 i++;
398 break;
f393ee2b
PC
399
400 case HID_USAGE_CONTACTMAX:
1cecc5cc
PC
401 /* leave touch_max as is if predefined */
402 if (!features->touch_max)
403 wacom_retrieve_report_data(intf, features);
f393ee2b
PC
404 i++;
405 break;
545f4e99
PC
406 }
407 break;
408
4134361a 409 case HID_COLLECTION_END:
ec67bbed 410 /* reset UsagePage and Finger */
545f4e99
PC
411 finger = usage = 0;
412 break;
4134361a
CB
413
414 case HID_COLLECTION:
415 i++;
416 switch (report[i]) {
417 case HID_COLLECTION_LOGICAL:
418 i += wacom_parse_logical_collection(&report[i],
419 features);
420 break;
421 }
422 break;
545f4e99
PC
423 }
424 }
425
545f4e99 426 out:
384318ec 427 result = 0;
545f4e99
PC
428 kfree(report);
429 return result;
430}
431
ec67bbed 432static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features)
3b7307c2
DT
433{
434 unsigned char *rep_data;
ec67bbed
PC
435 int limit = 0, report_id = 2;
436 int error = -ENOMEM;
3b7307c2 437
3b48c91c 438 rep_data = kmalloc(4, GFP_KERNEL);
3b7307c2 439 if (!rep_data)
ec67bbed
PC
440 return error;
441
1963518b
PC
442 /* ask to report Wacom data */
443 if (features->device_type == BTN_TOOL_FINGER) {
444 /* if it is an MT Tablet PC touch */
445 if (features->type == TABLETPC2FG ||
446 features->type == MTSCREEN) {
447 do {
448 rep_data[0] = 3;
449 rep_data[1] = 4;
450 rep_data[2] = 0;
451 rep_data[3] = 0;
452 report_id = 3;
453 error = wacom_set_report(intf,
454 WAC_HID_FEATURE_REPORT,
455 report_id,
456 rep_data, 4, 1);
457 if (error >= 0)
458 error = wacom_get_report(intf,
459 WAC_HID_FEATURE_REPORT,
460 report_id,
461 rep_data, 4, 1);
462 } while ((error < 0 || rep_data[1] != 4) &&
463 limit++ < WAC_MSG_RETRIES);
464 }
6e8ec537 465 } else if (features->type != TABLETPC &&
d3825d51 466 features->type != WIRELESS &&
6e8ec537 467 features->device_type == BTN_TOOL_PEN) {
ec67bbed
PC
468 do {
469 rep_data[0] = 2;
470 rep_data[1] = 2;
5d7e7d47
EH
471 error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT,
472 report_id, rep_data, 2, 1);
ec67bbed 473 if (error >= 0)
5d7e7d47
EH
474 error = wacom_get_report(intf,
475 WAC_HID_FEATURE_REPORT,
476 report_id, rep_data, 2, 1);
a417ea44 477 } while ((error < 0 || rep_data[1] != 2) && limit++ < WAC_MSG_RETRIES);
ec67bbed 478 }
3b7307c2
DT
479
480 kfree(rep_data);
481
482 return error < 0 ? error : 0;
483}
484
ec67bbed 485static int wacom_retrieve_hid_descriptor(struct usb_interface *intf,
1963518b 486 struct wacom_features *features)
ec67bbed
PC
487{
488 int error = 0;
489 struct usb_host_interface *interface = intf->cur_altsetting;
490 struct hid_descriptor *hid_desc;
491
fed87e65 492 /* default features */
ec67bbed 493 features->device_type = BTN_TOOL_PEN;
fed87e65
HR
494 features->x_fuzz = 4;
495 features->y_fuzz = 4;
496 features->pressure_fuzz = 0;
497 features->distance_fuzz = 0;
ec67bbed 498
d3825d51
CB
499 /*
500 * The wireless device HID is basic and layout conflicts with
501 * other tablets (monitor and touch interface can look like pen).
502 * Skip the query for this type and modify defaults based on
503 * interface number.
504 */
505 if (features->type == WIRELESS) {
506 if (intf->cur_altsetting->desc.bInterfaceNumber == 0) {
507 features->device_type = 0;
508 } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) {
509 features->device_type = BTN_TOOL_DOUBLETAP;
510 features->pktlen = WACOM_PKGLEN_BBTOUCH3;
511 }
512 }
513
1963518b
PC
514 /* only devices that support touch need to retrieve the info */
515 if (features->type != TABLETPC &&
516 features->type != TABLETPC2FG &&
517 features->type != BAMBOO_PT &&
518 features->type != MTSCREEN) {
ec67bbed 519 goto out;
1963518b 520 }
ec67bbed 521
a882c932
DT
522 error = usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc);
523 if (error) {
524 error = usb_get_extra_descriptor(&interface->endpoint[0],
525 HID_DEVICET_REPORT, &hid_desc);
526 if (error) {
eb71d1bb
DT
527 dev_err(&intf->dev,
528 "can not retrieve extra class descriptor\n");
ec67bbed
PC
529 goto out;
530 }
531 }
532 error = wacom_parse_hid(intf, hid_desc, features);
533 if (error)
534 goto out;
535
ec67bbed
PC
536 out:
537 return error;
538}
539
4492efff
PC
540struct wacom_usbdev_data {
541 struct list_head list;
542 struct kref kref;
543 struct usb_device *dev;
544 struct wacom_shared shared;
545};
546
547static LIST_HEAD(wacom_udev_list);
548static DEFINE_MUTEX(wacom_udev_list_lock);
549
550static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev)
551{
552 struct wacom_usbdev_data *data;
553
554 list_for_each_entry(data, &wacom_udev_list, list) {
555 if (data->dev == dev) {
556 kref_get(&data->kref);
557 return data;
558 }
559 }
560
561 return NULL;
562}
563
564static int wacom_add_shared_data(struct wacom_wac *wacom,
565 struct usb_device *dev)
566{
567 struct wacom_usbdev_data *data;
568 int retval = 0;
569
570 mutex_lock(&wacom_udev_list_lock);
571
572 data = wacom_get_usbdev_data(dev);
573 if (!data) {
574 data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL);
575 if (!data) {
576 retval = -ENOMEM;
577 goto out;
578 }
579
580 kref_init(&data->kref);
581 data->dev = dev;
582 list_add_tail(&data->list, &wacom_udev_list);
583 }
584
585 wacom->shared = &data->shared;
586
587out:
588 mutex_unlock(&wacom_udev_list_lock);
589 return retval;
590}
591
592static void wacom_release_shared_data(struct kref *kref)
593{
594 struct wacom_usbdev_data *data =
595 container_of(kref, struct wacom_usbdev_data, kref);
596
597 mutex_lock(&wacom_udev_list_lock);
598 list_del(&data->list);
599 mutex_unlock(&wacom_udev_list_lock);
600
601 kfree(data);
602}
603
604static void wacom_remove_shared_data(struct wacom_wac *wacom)
605{
606 struct wacom_usbdev_data *data;
607
608 if (wacom->shared) {
609 data = container_of(wacom->shared, struct wacom_usbdev_data, shared);
610 kref_put(&data->kref, wacom_release_shared_data);
611 wacom->shared = NULL;
612 }
613}
614
5d7e7d47
EH
615static int wacom_led_control(struct wacom *wacom)
616{
617 unsigned char *buf;
9b5b95dd 618 int retval;
5d7e7d47
EH
619
620 buf = kzalloc(9, GFP_KERNEL);
621 if (!buf)
622 return -ENOMEM;
623
9b5b95dd
JG
624 if (wacom->wacom_wac.features.type >= INTUOS5S &&
625 wacom->wacom_wac.features.type <= INTUOS5L) {
626 /*
627 * Touch Ring and crop mark LED luminance may take on
628 * one of four values:
629 * 0 = Low; 1 = Medium; 2 = High; 3 = Off
630 */
631 int ring_led = wacom->led.select[0] & 0x03;
632 int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03;
633 int crop_lum = 0;
634
635 buf[0] = WAC_CMD_LED_CONTROL;
636 buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led);
637 }
638 else {
639 int led = wacom->led.select[0] | 0x4;
640
641 if (wacom->wacom_wac.features.type == WACOM_21UX2 ||
642 wacom->wacom_wac.features.type == WACOM_24HD)
643 led |= (wacom->led.select[1] << 4) | 0x40;
644
645 buf[0] = WAC_CMD_LED_CONTROL;
646 buf[1] = led;
647 buf[2] = wacom->led.llv;
648 buf[3] = wacom->led.hlv;
649 buf[4] = wacom->led.img_lum;
650 }
5d7e7d47
EH
651
652 retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL,
653 buf, 9, WAC_CMD_RETRIES);
654 kfree(buf);
655
656 return retval;
657}
658
659static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img)
660{
661 unsigned char *buf;
662 int i, retval;
663
664 buf = kzalloc(259, GFP_KERNEL);
665 if (!buf)
666 return -ENOMEM;
667
668 /* Send 'start' command */
669 buf[0] = WAC_CMD_ICON_START;
670 buf[1] = 1;
671 retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START,
672 buf, 2, WAC_CMD_RETRIES);
673 if (retval < 0)
674 goto out;
675
676 buf[0] = WAC_CMD_ICON_XFER;
677 buf[1] = button_id & 0x07;
678 for (i = 0; i < 4; i++) {
679 buf[2] = i;
680 memcpy(buf + 3, img + i * 256, 256);
681
682 retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER,
683 buf, 259, WAC_CMD_RETRIES);
684 if (retval < 0)
685 break;
686 }
687
688 /* Send 'stop' */
689 buf[0] = WAC_CMD_ICON_START;
690 buf[1] = 0;
691 wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START,
692 buf, 2, WAC_CMD_RETRIES);
693
694out:
695 kfree(buf);
696 return retval;
697}
698
09e7d941 699static ssize_t wacom_led_select_store(struct device *dev, int set_id,
5d7e7d47
EH
700 const char *buf, size_t count)
701{
702 struct wacom *wacom = dev_get_drvdata(dev);
703 unsigned int id;
704 int err;
705
706 err = kstrtouint(buf, 10, &id);
707 if (err)
708 return err;
709
710 mutex_lock(&wacom->lock);
711
09e7d941 712 wacom->led.select[set_id] = id & 0x3;
5d7e7d47
EH
713 err = wacom_led_control(wacom);
714
715 mutex_unlock(&wacom->lock);
716
717 return err < 0 ? err : count;
718}
719
09e7d941
PC
720#define DEVICE_LED_SELECT_ATTR(SET_ID) \
721static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
722 struct device_attribute *attr, const char *buf, size_t count) \
723{ \
724 return wacom_led_select_store(dev, SET_ID, buf, count); \
725} \
04c59abd
PC
726static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
727 struct device_attribute *attr, char *buf) \
728{ \
729 struct wacom *wacom = dev_get_drvdata(dev); \
730 return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \
731} \
732static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \
733 wacom_led##SET_ID##_select_show, \
09e7d941
PC
734 wacom_led##SET_ID##_select_store)
735
736DEVICE_LED_SELECT_ATTR(0);
737DEVICE_LED_SELECT_ATTR(1);
5d7e7d47
EH
738
739static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest,
740 const char *buf, size_t count)
741{
742 unsigned int value;
743 int err;
744
745 err = kstrtouint(buf, 10, &value);
746 if (err)
747 return err;
748
749 mutex_lock(&wacom->lock);
750
751 *dest = value & 0x7f;
752 err = wacom_led_control(wacom);
753
754 mutex_unlock(&wacom->lock);
755
756 return err < 0 ? err : count;
757}
758
759#define DEVICE_LUMINANCE_ATTR(name, field) \
760static ssize_t wacom_##name##_luminance_store(struct device *dev, \
761 struct device_attribute *attr, const char *buf, size_t count) \
762{ \
763 struct wacom *wacom = dev_get_drvdata(dev); \
764 \
765 return wacom_luminance_store(wacom, &wacom->led.field, \
766 buf, count); \
767} \
768static DEVICE_ATTR(name##_luminance, S_IWUSR, \
769 NULL, wacom_##name##_luminance_store)
770
771DEVICE_LUMINANCE_ATTR(status0, llv);
772DEVICE_LUMINANCE_ATTR(status1, hlv);
773DEVICE_LUMINANCE_ATTR(buttons, img_lum);
774
775static ssize_t wacom_button_image_store(struct device *dev, int button_id,
776 const char *buf, size_t count)
777{
778 struct wacom *wacom = dev_get_drvdata(dev);
779 int err;
780
781 if (count != 1024)
782 return -EINVAL;
783
784 mutex_lock(&wacom->lock);
785
786 err = wacom_led_putimage(wacom, button_id, buf);
787
788 mutex_unlock(&wacom->lock);
789
790 return err < 0 ? err : count;
791}
792
793#define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
794static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
795 struct device_attribute *attr, const char *buf, size_t count) \
796{ \
797 return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
798} \
799static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \
800 NULL, wacom_btnimg##BUTTON_ID##_store)
801
802DEVICE_BTNIMG_ATTR(0);
803DEVICE_BTNIMG_ATTR(1);
804DEVICE_BTNIMG_ATTR(2);
805DEVICE_BTNIMG_ATTR(3);
806DEVICE_BTNIMG_ATTR(4);
807DEVICE_BTNIMG_ATTR(5);
808DEVICE_BTNIMG_ATTR(6);
809DEVICE_BTNIMG_ATTR(7);
810
09e7d941
PC
811static struct attribute *cintiq_led_attrs[] = {
812 &dev_attr_status_led0_select.attr,
813 &dev_attr_status_led1_select.attr,
814 NULL
815};
816
817static struct attribute_group cintiq_led_attr_group = {
818 .name = "wacom_led",
819 .attrs = cintiq_led_attrs,
820};
821
822static struct attribute *intuos4_led_attrs[] = {
5d7e7d47
EH
823 &dev_attr_status0_luminance.attr,
824 &dev_attr_status1_luminance.attr,
09e7d941 825 &dev_attr_status_led0_select.attr,
5d7e7d47
EH
826 &dev_attr_buttons_luminance.attr,
827 &dev_attr_button0_rawimg.attr,
828 &dev_attr_button1_rawimg.attr,
829 &dev_attr_button2_rawimg.attr,
830 &dev_attr_button3_rawimg.attr,
831 &dev_attr_button4_rawimg.attr,
832 &dev_attr_button5_rawimg.attr,
833 &dev_attr_button6_rawimg.attr,
834 &dev_attr_button7_rawimg.attr,
835 NULL
836};
837
09e7d941 838static struct attribute_group intuos4_led_attr_group = {
5d7e7d47 839 .name = "wacom_led",
09e7d941 840 .attrs = intuos4_led_attrs,
5d7e7d47
EH
841};
842
9b5b95dd
JG
843static struct attribute *intuos5_led_attrs[] = {
844 &dev_attr_status0_luminance.attr,
845 &dev_attr_status_led0_select.attr,
846 NULL
847};
848
849static struct attribute_group intuos5_led_attr_group = {
850 .name = "wacom_led",
851 .attrs = intuos5_led_attrs,
852};
853
5d7e7d47
EH
854static int wacom_initialize_leds(struct wacom *wacom)
855{
856 int error;
857
09e7d941
PC
858 /* Initialize default values */
859 switch (wacom->wacom_wac.features.type) {
860 case INTUOS4:
861 case INTUOS4L:
862 wacom->led.select[0] = 0;
863 wacom->led.select[1] = 0;
f4fa9a6d 864 wacom->led.llv = 10;
5d7e7d47
EH
865 wacom->led.hlv = 20;
866 wacom->led.img_lum = 10;
09e7d941
PC
867 error = sysfs_create_group(&wacom->intf->dev.kobj,
868 &intuos4_led_attr_group);
869 break;
870
246835fc 871 case WACOM_24HD:
09e7d941
PC
872 case WACOM_21UX2:
873 wacom->led.select[0] = 0;
874 wacom->led.select[1] = 0;
875 wacom->led.llv = 0;
876 wacom->led.hlv = 0;
877 wacom->led.img_lum = 0;
5d7e7d47
EH
878
879 error = sysfs_create_group(&wacom->intf->dev.kobj,
09e7d941
PC
880 &cintiq_led_attr_group);
881 break;
882
9b5b95dd
JG
883 case INTUOS5S:
884 case INTUOS5:
885 case INTUOS5L:
886 wacom->led.select[0] = 0;
887 wacom->led.select[1] = 0;
888 wacom->led.llv = 32;
889 wacom->led.hlv = 0;
890 wacom->led.img_lum = 0;
891
892 error = sysfs_create_group(&wacom->intf->dev.kobj,
893 &intuos5_led_attr_group);
894 break;
895
09e7d941
PC
896 default:
897 return 0;
5d7e7d47
EH
898 }
899
09e7d941
PC
900 if (error) {
901 dev_err(&wacom->intf->dev,
902 "cannot create sysfs group err: %d\n", error);
903 return error;
904 }
905 wacom_led_control(wacom);
906
5d7e7d47
EH
907 return 0;
908}
909
910static void wacom_destroy_leds(struct wacom *wacom)
911{
09e7d941
PC
912 switch (wacom->wacom_wac.features.type) {
913 case INTUOS4:
914 case INTUOS4L:
5d7e7d47 915 sysfs_remove_group(&wacom->intf->dev.kobj,
09e7d941
PC
916 &intuos4_led_attr_group);
917 break;
918
246835fc 919 case WACOM_24HD:
09e7d941
PC
920 case WACOM_21UX2:
921 sysfs_remove_group(&wacom->intf->dev.kobj,
922 &cintiq_led_attr_group);
923 break;
9b5b95dd
JG
924
925 case INTUOS5S:
926 case INTUOS5:
927 case INTUOS5L:
928 sysfs_remove_group(&wacom->intf->dev.kobj,
929 &intuos5_led_attr_group);
930 break;
5d7e7d47
EH
931 }
932}
933
a1d552cc
CB
934static enum power_supply_property wacom_battery_props[] = {
935 POWER_SUPPLY_PROP_CAPACITY
936};
937
938static int wacom_battery_get_property(struct power_supply *psy,
939 enum power_supply_property psp,
940 union power_supply_propval *val)
941{
942 struct wacom *wacom = container_of(psy, struct wacom, battery);
943 int ret = 0;
944
945 switch (psp) {
946 case POWER_SUPPLY_PROP_CAPACITY:
947 val->intval =
948 wacom->wacom_wac.battery_capacity * 100 / 31;
949 break;
950 default:
951 ret = -EINVAL;
952 break;
953 }
954
955 return ret;
956}
957
958static int wacom_initialize_battery(struct wacom *wacom)
959{
960 int error = 0;
961
962 if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) {
963 wacom->battery.properties = wacom_battery_props;
964 wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props);
965 wacom->battery.get_property = wacom_battery_get_property;
966 wacom->battery.name = "wacom_battery";
967 wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY;
968 wacom->battery.use_for_apm = 0;
969
970 error = power_supply_register(&wacom->usbdev->dev,
971 &wacom->battery);
972 }
973
974 return error;
975}
976
977static void wacom_destroy_battery(struct wacom *wacom)
978{
979 if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR)
980 power_supply_unregister(&wacom->battery);
981}
982
3aac0ef1
CB
983static int wacom_register_input(struct wacom *wacom)
984{
985 struct input_dev *input_dev;
986 struct usb_interface *intf = wacom->intf;
987 struct usb_device *dev = interface_to_usbdev(intf);
988 struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
989 int error;
990
991 input_dev = input_allocate_device();
1963518b
PC
992 if (!input_dev) {
993 error = -ENOMEM;
994 goto fail1;
995 }
3aac0ef1
CB
996
997 input_dev->name = wacom_wac->name;
998 input_dev->dev.parent = &intf->dev;
999 input_dev->open = wacom_open;
1000 input_dev->close = wacom_close;
1001 usb_to_input_id(dev, &input_dev->id);
1002 input_set_drvdata(input_dev, wacom);
1003
1004 wacom_wac->input = input_dev;
1963518b
PC
1005 error = wacom_setup_input_capabilities(input_dev, wacom_wac);
1006 if (error)
1007 goto fail1;
3aac0ef1
CB
1008
1009 error = input_register_device(input_dev);
1963518b
PC
1010 if (error)
1011 goto fail2;
1012
1013 return 0;
3aac0ef1 1014
1963518b
PC
1015fail2:
1016 input_free_device(input_dev);
1017 wacom_wac->input = NULL;
1018fail1:
3aac0ef1
CB
1019 return error;
1020}
1021
16bf288c
CB
1022static void wacom_wireless_work(struct work_struct *work)
1023{
1024 struct wacom *wacom = container_of(work, struct wacom, work);
1025 struct usb_device *usbdev = wacom->usbdev;
1026 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
1027
1028 /*
1029 * Regardless if this is a disconnect or a new tablet,
1030 * remove any existing input devices.
1031 */
1032
1033 /* Stylus interface */
1034 wacom = usb_get_intfdata(usbdev->config->interface[1]);
1035 if (wacom->wacom_wac.input)
1036 input_unregister_device(wacom->wacom_wac.input);
0c9e300a 1037 wacom->wacom_wac.input = NULL;
16bf288c
CB
1038
1039 /* Touch interface */
1040 wacom = usb_get_intfdata(usbdev->config->interface[2]);
1041 if (wacom->wacom_wac.input)
1042 input_unregister_device(wacom->wacom_wac.input);
0c9e300a 1043 wacom->wacom_wac.input = NULL;
16bf288c
CB
1044
1045 if (wacom_wac->pid == 0) {
eb71d1bb 1046 dev_info(&wacom->intf->dev, "wireless tablet disconnected\n");
16bf288c
CB
1047 } else {
1048 const struct usb_device_id *id = wacom_ids;
1049
eb71d1bb
DT
1050 dev_info(&wacom->intf->dev,
1051 "wireless tablet connected with PID %x\n",
1052 wacom_wac->pid);
16bf288c
CB
1053
1054 while (id->match_flags) {
1055 if (id->idVendor == USB_VENDOR_ID_WACOM &&
1056 id->idProduct == wacom_wac->pid)
1057 break;
1058 id++;
1059 }
1060
1061 if (!id->match_flags) {
eb71d1bb
DT
1062 dev_info(&wacom->intf->dev,
1063 "ignoring unknown PID.\n");
16bf288c
CB
1064 return;
1065 }
1066
1067 /* Stylus interface */
1068 wacom = usb_get_intfdata(usbdev->config->interface[1]);
1069 wacom_wac = &wacom->wacom_wac;
1070 wacom_wac->features =
1071 *((struct wacom_features *)id->driver_info);
1072 wacom_wac->features.device_type = BTN_TOOL_PEN;
1073 wacom_register_input(wacom);
1074
1075 /* Touch interface */
1076 wacom = usb_get_intfdata(usbdev->config->interface[2]);
1077 wacom_wac = &wacom->wacom_wac;
1078 wacom_wac->features =
1079 *((struct wacom_features *)id->driver_info);
1080 wacom_wac->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
1081 wacom_wac->features.device_type = BTN_TOOL_FINGER;
1082 wacom_set_phy_from_res(&wacom_wac->features);
1083 wacom_wac->features.x_max = wacom_wac->features.y_max = 4096;
1084 wacom_register_input(wacom);
1085 }
1086}
1087
3bea733a
PC
1088static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
1089{
1090 struct usb_device *dev = interface_to_usbdev(intf);
1091 struct usb_endpoint_descriptor *endpoint;
1092 struct wacom *wacom;
1093 struct wacom_wac *wacom_wac;
e33da8a5 1094 struct wacom_features *features;
e33da8a5 1095 int error;
3bea733a 1096
e33da8a5 1097 if (!id->driver_info)
b036f6fb
BB
1098 return -EINVAL;
1099
3bea733a 1100 wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL);
f1823940
DC
1101 if (!wacom)
1102 return -ENOMEM;
e33da8a5 1103
51269fe8 1104 wacom_wac = &wacom->wacom_wac;
e33da8a5
JC
1105 wacom_wac->features = *((struct wacom_features *)id->driver_info);
1106 features = &wacom_wac->features;
1107 if (features->pktlen > WACOM_PKGLEN_MAX) {
1108 error = -EINVAL;
3bea733a 1109 goto fail1;
e33da8a5 1110 }
3bea733a 1111
997ea58e
DM
1112 wacom_wac->data = usb_alloc_coherent(dev, WACOM_PKGLEN_MAX,
1113 GFP_KERNEL, &wacom->data_dma);
e33da8a5
JC
1114 if (!wacom_wac->data) {
1115 error = -ENOMEM;
3bea733a 1116 goto fail1;
e33da8a5 1117 }
3bea733a
PC
1118
1119 wacom->irq = usb_alloc_urb(0, GFP_KERNEL);
e33da8a5
JC
1120 if (!wacom->irq) {
1121 error = -ENOMEM;
3bea733a 1122 goto fail2;
e33da8a5 1123 }
3bea733a
PC
1124
1125 wacom->usbdev = dev;
e7224094
ON
1126 wacom->intf = intf;
1127 mutex_init(&wacom->lock);
16bf288c 1128 INIT_WORK(&wacom->work, wacom_wireless_work);
3bea733a
PC
1129 usb_make_path(dev, wacom->phys, sizeof(wacom->phys));
1130 strlcat(wacom->phys, "/input0", sizeof(wacom->phys));
1131
545f4e99
PC
1132 endpoint = &intf->cur_altsetting->endpoint[0].desc;
1133
f393ee2b 1134 /* Retrieve the physical and logical size for touch devices */
ec67bbed
PC
1135 error = wacom_retrieve_hid_descriptor(intf, features);
1136 if (error)
4b6d4434 1137 goto fail3;
545f4e99 1138
ae584ca4
JG
1139 /*
1140 * Intuos5 has no useful data about its touch interface in its
1141 * HID descriptor. If this is the touch interface (wMaxPacketSize
1142 * of WACOM_PKGLEN_BBTOUCH3), override the table values.
1143 */
1144 if (features->type >= INTUOS5S && features->type <= INTUOS5L) {
1145 if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) {
1146 features->device_type = BTN_TOOL_FINGER;
1147 features->pktlen = WACOM_PKGLEN_BBTOUCH3;
1148
1149 features->x_phy =
1150 (features->x_max * 100) / features->x_resolution;
1151 features->y_phy =
1152 (features->y_max * 100) / features->y_resolution;
1153
1154 features->x_max = 4096;
1155 features->y_max = 4096;
1156 } else {
1157 features->device_type = BTN_TOOL_PEN;
1158 }
1159 }
1160
bc73dd39
HR
1161 wacom_setup_device_quirks(features);
1162
49b764ae
PC
1163 strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name));
1164
bc73dd39 1165 if (features->quirks & WACOM_QUIRK_MULTI_INPUT) {
49b764ae
PC
1166 /* Append the device type to the name */
1167 strlcat(wacom_wac->name,
1168 features->device_type == BTN_TOOL_PEN ?
1169 " Pen" : " Finger",
1170 sizeof(wacom_wac->name));
4492efff
PC
1171
1172 error = wacom_add_shared_data(wacom_wac, dev);
1173 if (error)
1174 goto fail3;
49b764ae
PC
1175 }
1176
3bea733a
PC
1177 usb_fill_int_urb(wacom->irq, dev,
1178 usb_rcvintpipe(dev, endpoint->bEndpointAddress),
ec67bbed 1179 wacom_wac->data, features->pktlen,
8d32e3ae 1180 wacom_sys_irq, wacom, endpoint->bInterval);
3bea733a
PC
1181 wacom->irq->transfer_dma = wacom->data_dma;
1182 wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1183
5d7e7d47 1184 error = wacom_initialize_leds(wacom);
5014186d 1185 if (error)
4492efff 1186 goto fail4;
3bea733a 1187
a1d552cc
CB
1188 error = wacom_initialize_battery(wacom);
1189 if (error)
1190 goto fail5;
1191
d3825d51
CB
1192 if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) {
1193 error = wacom_register_input(wacom);
1194 if (error)
a1d552cc 1195 goto fail6;
d3825d51 1196 }
5d7e7d47 1197
ec67bbed
PC
1198 /* Note that if query fails it is not a hard failure */
1199 wacom_query_tablet_data(intf, features);
3bea733a
PC
1200
1201 usb_set_intfdata(intf, wacom);
d3825d51
CB
1202
1203 if (features->quirks & WACOM_QUIRK_MONITOR) {
1204 if (usb_submit_urb(wacom->irq, GFP_KERNEL))
1205 goto fail5;
1206 }
1207
3bea733a
PC
1208 return 0;
1209
a1d552cc 1210 fail6: wacom_destroy_battery(wacom);
5d7e7d47 1211 fail5: wacom_destroy_leds(wacom);
4492efff 1212 fail4: wacom_remove_shared_data(wacom_wac);
5014186d 1213 fail3: usb_free_urb(wacom->irq);
997ea58e 1214 fail2: usb_free_coherent(dev, WACOM_PKGLEN_MAX, wacom_wac->data, wacom->data_dma);
3aac0ef1 1215 fail1: kfree(wacom);
5014186d 1216 return error;
3bea733a
PC
1217}
1218
1219static void wacom_disconnect(struct usb_interface *intf)
1220{
e7224094 1221 struct wacom *wacom = usb_get_intfdata(intf);
3bea733a
PC
1222
1223 usb_set_intfdata(intf, NULL);
e7224094
ON
1224
1225 usb_kill_urb(wacom->irq);
16bf288c 1226 cancel_work_sync(&wacom->work);
d3825d51
CB
1227 if (wacom->wacom_wac.input)
1228 input_unregister_device(wacom->wacom_wac.input);
a1d552cc 1229 wacom_destroy_battery(wacom);
5d7e7d47 1230 wacom_destroy_leds(wacom);
e7224094 1231 usb_free_urb(wacom->irq);
997ea58e 1232 usb_free_coherent(interface_to_usbdev(intf), WACOM_PKGLEN_MAX,
51269fe8
DT
1233 wacom->wacom_wac.data, wacom->data_dma);
1234 wacom_remove_shared_data(&wacom->wacom_wac);
e7224094
ON
1235 kfree(wacom);
1236}
1237
1238static int wacom_suspend(struct usb_interface *intf, pm_message_t message)
1239{
1240 struct wacom *wacom = usb_get_intfdata(intf);
1241
1242 mutex_lock(&wacom->lock);
1243 usb_kill_urb(wacom->irq);
1244 mutex_unlock(&wacom->lock);
1245
1246 return 0;
1247}
1248
1249static int wacom_resume(struct usb_interface *intf)
1250{
1251 struct wacom *wacom = usb_get_intfdata(intf);
51269fe8 1252 struct wacom_features *features = &wacom->wacom_wac.features;
5d7e7d47 1253 int rv = 0;
e7224094
ON
1254
1255 mutex_lock(&wacom->lock);
38101475
PC
1256
1257 /* switch to wacom mode first */
1258 wacom_query_tablet_data(intf, features);
5d7e7d47 1259 wacom_led_control(wacom);
38101475 1260
d3825d51
CB
1261 if ((wacom->open || features->quirks & WACOM_QUIRK_MONITOR)
1262 && usb_submit_urb(wacom->irq, GFP_NOIO) < 0)
5d7e7d47 1263 rv = -EIO;
38101475 1264
e7224094
ON
1265 mutex_unlock(&wacom->lock);
1266
1267 return rv;
1268}
1269
1270static int wacom_reset_resume(struct usb_interface *intf)
1271{
1272 return wacom_resume(intf);
3bea733a
PC
1273}
1274
1275static struct usb_driver wacom_driver = {
1276 .name = "wacom",
b036f6fb 1277 .id_table = wacom_ids,
3bea733a
PC
1278 .probe = wacom_probe,
1279 .disconnect = wacom_disconnect,
e7224094
ON
1280 .suspend = wacom_suspend,
1281 .resume = wacom_resume,
1282 .reset_resume = wacom_reset_resume,
1283 .supports_autosuspend = 1,
3bea733a
PC
1284};
1285
08642e7c 1286module_usb_driver(wacom_driver);