2 * drivers/input/tablet/wacom_sys.c
4 * USB Wacom tablet support - system specific code
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.
14 #include "wacom_wac.h"
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
31 #define HID_USAGE_CONTACTMAX 0x55
32 #define HID_COLLECTION 0xa1
33 #define HID_COLLECTION_LOGICAL 0x02
34 #define HID_COLLECTION_END 0xc0
42 struct hid_descriptor
{
43 struct usb_descriptor_header header
;
48 __le16 wDescriptorLength
;
49 } __attribute__ ((packed
));
51 /* defines to get/set USB message */
52 #define USB_REQ_GET_REPORT 0x01
53 #define USB_REQ_SET_REPORT 0x09
55 #define WAC_HID_FEATURE_REPORT 0x03
56 #define WAC_MSG_RETRIES 5
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
63 static int wacom_get_report(struct usb_interface
*intf
, u8 type
, u8 id
,
64 void *buf
, size_t size
, unsigned int retries
)
66 struct usb_device
*dev
= interface_to_usbdev(intf
);
70 retval
= usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0),
72 USB_DIR_IN
| USB_TYPE_CLASS
|
75 intf
->altsetting
[0].desc
.bInterfaceNumber
,
77 } while ((retval
== -ETIMEDOUT
|| retval
== -EPIPE
) && --retries
);
82 static int wacom_set_report(struct usb_interface
*intf
, u8 type
, u8 id
,
83 void *buf
, size_t size
, unsigned int retries
)
85 struct usb_device
*dev
= interface_to_usbdev(intf
);
89 retval
= usb_control_msg(dev
, usb_sndctrlpipe(dev
, 0),
91 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
93 intf
->altsetting
[0].desc
.bInterfaceNumber
,
95 } while ((retval
== -ETIMEDOUT
|| retval
== -EPIPE
) && --retries
);
100 static void wacom_sys_irq(struct urb
*urb
)
102 struct wacom
*wacom
= urb
->context
;
103 struct device
*dev
= &wacom
->intf
->dev
;
106 switch (urb
->status
) {
113 /* this urb is terminated, clean up */
114 dev_dbg(dev
, "%s - urb shutting down with status: %d\n",
115 __func__
, urb
->status
);
118 dev_dbg(dev
, "%s - nonzero urb status received: %d\n",
119 __func__
, urb
->status
);
123 wacom_wac_irq(&wacom
->wacom_wac
, urb
->actual_length
);
126 usb_mark_last_busy(wacom
->usbdev
);
127 retval
= usb_submit_urb(urb
, GFP_ATOMIC
);
129 dev_err(dev
, "%s - usb_submit_urb failed with result %d\n",
133 static int wacom_open(struct input_dev
*dev
)
135 struct wacom
*wacom
= input_get_drvdata(dev
);
138 if (usb_autopm_get_interface(wacom
->intf
) < 0)
141 mutex_lock(&wacom
->lock
);
143 if (usb_submit_urb(wacom
->irq
, GFP_KERNEL
)) {
149 wacom
->intf
->needs_remote_wakeup
= 1;
152 mutex_unlock(&wacom
->lock
);
153 usb_autopm_put_interface(wacom
->intf
);
157 static void wacom_close(struct input_dev
*dev
)
159 struct wacom
*wacom
= input_get_drvdata(dev
);
162 autopm_error
= usb_autopm_get_interface(wacom
->intf
);
164 mutex_lock(&wacom
->lock
);
165 usb_kill_urb(wacom
->irq
);
167 wacom
->intf
->needs_remote_wakeup
= 0;
168 mutex_unlock(&wacom
->lock
);
171 usb_autopm_put_interface(wacom
->intf
);
175 * Static values for max X/Y and resolution of Pen interface is stored in
176 * features. This mean physical size of active area can be computed.
177 * This is useful to do when Pen and Touch have same active area of tablet.
178 * This means for Touch device, we only need to find max X/Y value and we
179 * have enough information to compute resolution of touch.
181 static void wacom_set_phy_from_res(struct wacom_features
*features
)
183 features
->x_phy
= (features
->x_max
* 100) / features
->x_resolution
;
184 features
->y_phy
= (features
->y_max
* 100) / features
->y_resolution
;
187 static int wacom_parse_logical_collection(unsigned char *report
,
188 struct wacom_features
*features
)
192 if (features
->type
== BAMBOO_PT
) {
194 /* Logical collection is only used by 3rd gen Bamboo Touch */
195 features
->pktlen
= WACOM_PKGLEN_BBTOUCH3
;
196 features
->device_type
= BTN_TOOL_FINGER
;
198 wacom_set_phy_from_res(features
);
200 features
->x_max
= features
->y_max
=
201 get_unaligned_le16(&report
[10]);
208 static void wacom_retrieve_report_data(struct usb_interface
*intf
,
209 struct wacom_features
*features
)
212 unsigned char *rep_data
;
214 rep_data
= kmalloc(2, GFP_KERNEL
);
218 result
= wacom_get_report(intf
, WAC_HID_FEATURE_REPORT
,
219 rep_data
[0], rep_data
, 2,
222 if (result
>= 0 && rep_data
[1] > 2)
223 features
->touch_max
= rep_data
[1];
230 * Interface Descriptor of wacom devices can be incomplete and
231 * inconsistent so wacom_features table is used to store stylus
232 * device's packet lengths, various maximum values, and tablet
233 * resolution based on product ID's.
235 * For devices that contain 2 interfaces, wacom_features table is
236 * inaccurate for the touch interface. Since the Interface Descriptor
237 * for touch interfaces has pretty complete data, this function exists
238 * to query tablet for this missing information instead of hard coding in
239 * an additional table.
241 * A typical Interface Descriptor for a stylus will contain a
242 * boot mouse application collection that is not of interest and this
243 * function will ignore it.
245 * It also contains a digitizer application collection that also is not
246 * of interest since any information it contains would be duplicate
247 * of what is in wacom_features. Usually it defines a report of an array
248 * of bytes that could be used as max length of the stylus packet returned.
249 * If it happens to define a Digitizer-Stylus Physical Collection then
250 * the X and Y logical values contain valid data but it is ignored.
252 * A typical Interface Descriptor for a touch interface will contain a
253 * Digitizer-Finger Physical Collection which will define both logical
254 * X/Y maximum as well as the physical size of tablet. Since touch
255 * interfaces haven't supported pressure or distance, this is enough
256 * information to override invalid values in the wacom_features table.
258 * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical
259 * Collection. Instead they define a Logical Collection with a single
260 * Logical Maximum for both X and Y.
262 * Intuos5 touch interface does not contain useful data. We deal with
263 * this after returning from this function.
265 static int wacom_parse_hid(struct usb_interface
*intf
,
266 struct hid_descriptor
*hid_desc
,
267 struct wacom_features
*features
)
269 struct usb_device
*dev
= interface_to_usbdev(intf
);
271 /* result has to be defined as int for some devices */
273 int i
= 0, usage
= WCM_UNDEFINED
, finger
= 0, pen
= 0;
274 unsigned char *report
;
276 report
= kzalloc(hid_desc
->wDescriptorLength
, GFP_KERNEL
);
280 /* retrive report descriptors */
282 result
= usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0),
283 USB_REQ_GET_DESCRIPTOR
,
284 USB_RECIP_INTERFACE
| USB_DIR_IN
,
285 HID_DEVICET_REPORT
<< 8,
286 intf
->altsetting
[0].desc
.bInterfaceNumber
, /* interface */
288 hid_desc
->wDescriptorLength
,
290 } while (result
< 0 && limit
++ < WAC_MSG_RETRIES
);
292 /* No need to parse the Descriptor. It isn't an error though */
296 for (i
= 0; i
< hid_desc
->wDescriptorLength
; i
++) {
300 switch (report
[i
+ 1]) {
301 case HID_USAGE_PAGE_DIGITIZER
:
302 usage
= WCM_DIGITIZER
;
306 case HID_USAGE_PAGE_DESKTOP
:
314 switch (report
[i
+ 1]) {
316 if (usage
== WCM_DESKTOP
) {
318 features
->device_type
= BTN_TOOL_FINGER
;
319 if (features
->type
== TABLETPC2FG
) {
320 /* need to reset back */
321 features
->pktlen
= WACOM_PKGLEN_TPC2FG
;
324 if (features
->type
== MTSCREEN
)
325 features
->pktlen
= WACOM_PKGLEN_MTOUCH
;
327 if (features
->type
== BAMBOO_PT
) {
328 /* need to reset back */
329 features
->pktlen
= WACOM_PKGLEN_BBTOUCH
;
331 get_unaligned_le16(&report
[i
+ 5]);
333 get_unaligned_le16(&report
[i
+ 8]);
337 get_unaligned_le16(&report
[i
+ 3]);
339 get_unaligned_le16(&report
[i
+ 6]);
340 features
->unit
= report
[i
+ 9];
341 features
->unitExpo
= report
[i
+ 11];
345 /* penabled only accepts exact bytes of data */
346 if (features
->type
== TABLETPC2FG
)
347 features
->pktlen
= WACOM_PKGLEN_GRAPHIRE
;
348 features
->device_type
= BTN_TOOL_PEN
;
350 get_unaligned_le16(&report
[i
+ 3]);
357 if (usage
== WCM_DESKTOP
) {
359 int type
= features
->type
;
361 if (type
== TABLETPC2FG
|| type
== MTSCREEN
) {
363 get_unaligned_le16(&report
[i
+ 3]);
365 get_unaligned_le16(&report
[i
+ 6]);
367 } else if (type
== BAMBOO_PT
) {
369 get_unaligned_le16(&report
[i
+ 3]);
371 get_unaligned_le16(&report
[i
+ 6]);
377 get_unaligned_le16(&report
[i
+ 3]);
382 get_unaligned_le16(&report
[i
+ 3]);
388 case HID_USAGE_FINGER
:
394 * Requiring Stylus Usage will ignore boot mouse
395 * X/Y values and some cases of invalid Digitizer X/Y
396 * values commonly reported.
398 case HID_USAGE_STYLUS
:
403 case HID_USAGE_CONTACTMAX
:
404 /* leave touch_max as is if predefined */
405 if (!features
->touch_max
)
406 wacom_retrieve_report_data(intf
, features
);
412 case HID_COLLECTION_END
:
413 /* reset UsagePage and Finger */
420 case HID_COLLECTION_LOGICAL
:
421 i
+= wacom_parse_logical_collection(&report
[i
],
435 static int wacom_query_tablet_data(struct usb_interface
*intf
, struct wacom_features
*features
)
437 unsigned char *rep_data
;
438 int limit
= 0, report_id
= 2;
441 rep_data
= kmalloc(4, GFP_KERNEL
);
445 /* ask to report Wacom data */
446 if (features
->device_type
== BTN_TOOL_FINGER
) {
447 /* if it is an MT Tablet PC touch */
448 if (features
->type
== TABLETPC2FG
||
449 features
->type
== MTSCREEN
) {
456 error
= wacom_set_report(intf
,
457 WAC_HID_FEATURE_REPORT
,
461 error
= wacom_get_report(intf
,
462 WAC_HID_FEATURE_REPORT
,
465 } while ((error
< 0 || rep_data
[1] != 4) &&
466 limit
++ < WAC_MSG_RETRIES
);
468 } else if (features
->type
!= TABLETPC
&&
469 features
->type
!= WIRELESS
&&
470 features
->device_type
== BTN_TOOL_PEN
) {
474 error
= wacom_set_report(intf
, WAC_HID_FEATURE_REPORT
,
475 report_id
, rep_data
, 2, 1);
477 error
= wacom_get_report(intf
,
478 WAC_HID_FEATURE_REPORT
,
479 report_id
, rep_data
, 2, 1);
480 } while ((error
< 0 || rep_data
[1] != 2) && limit
++ < WAC_MSG_RETRIES
);
485 return error
< 0 ? error
: 0;
488 static int wacom_retrieve_hid_descriptor(struct usb_interface
*intf
,
489 struct wacom_features
*features
)
492 struct usb_host_interface
*interface
= intf
->cur_altsetting
;
493 struct hid_descriptor
*hid_desc
;
495 /* default features */
496 features
->device_type
= BTN_TOOL_PEN
;
497 features
->x_fuzz
= 4;
498 features
->y_fuzz
= 4;
499 features
->pressure_fuzz
= 0;
500 features
->distance_fuzz
= 0;
503 * The wireless device HID is basic and layout conflicts with
504 * other tablets (monitor and touch interface can look like pen).
505 * Skip the query for this type and modify defaults based on
508 if (features
->type
== WIRELESS
) {
509 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
== 0) {
510 features
->device_type
= 0;
511 } else if (intf
->cur_altsetting
->desc
.bInterfaceNumber
== 2) {
512 features
->device_type
= BTN_TOOL_DOUBLETAP
;
513 features
->pktlen
= WACOM_PKGLEN_BBTOUCH3
;
517 /* only devices that support touch need to retrieve the info */
518 if (features
->type
!= TABLETPC
&&
519 features
->type
!= TABLETPC2FG
&&
520 features
->type
!= BAMBOO_PT
&&
521 features
->type
!= MTSCREEN
) {
525 error
= usb_get_extra_descriptor(interface
, HID_DEVICET_HID
, &hid_desc
);
527 error
= usb_get_extra_descriptor(&interface
->endpoint
[0],
528 HID_DEVICET_REPORT
, &hid_desc
);
531 "can not retrieve extra class descriptor\n");
535 error
= wacom_parse_hid(intf
, hid_desc
, features
);
543 struct wacom_usbdev_data
{
544 struct list_head list
;
546 struct usb_device
*dev
;
547 struct wacom_shared shared
;
550 static LIST_HEAD(wacom_udev_list
);
551 static DEFINE_MUTEX(wacom_udev_list_lock
);
553 static struct wacom_usbdev_data
*wacom_get_usbdev_data(struct usb_device
*dev
)
555 struct wacom_usbdev_data
*data
;
557 list_for_each_entry(data
, &wacom_udev_list
, list
) {
558 if (data
->dev
== dev
) {
559 kref_get(&data
->kref
);
567 static int wacom_add_shared_data(struct wacom_wac
*wacom
,
568 struct usb_device
*dev
)
570 struct wacom_usbdev_data
*data
;
573 mutex_lock(&wacom_udev_list_lock
);
575 data
= wacom_get_usbdev_data(dev
);
577 data
= kzalloc(sizeof(struct wacom_usbdev_data
), GFP_KERNEL
);
583 kref_init(&data
->kref
);
585 list_add_tail(&data
->list
, &wacom_udev_list
);
588 wacom
->shared
= &data
->shared
;
591 mutex_unlock(&wacom_udev_list_lock
);
595 static void wacom_release_shared_data(struct kref
*kref
)
597 struct wacom_usbdev_data
*data
=
598 container_of(kref
, struct wacom_usbdev_data
, kref
);
600 mutex_lock(&wacom_udev_list_lock
);
601 list_del(&data
->list
);
602 mutex_unlock(&wacom_udev_list_lock
);
607 static void wacom_remove_shared_data(struct wacom_wac
*wacom
)
609 struct wacom_usbdev_data
*data
;
612 data
= container_of(wacom
->shared
, struct wacom_usbdev_data
, shared
);
613 kref_put(&data
->kref
, wacom_release_shared_data
);
614 wacom
->shared
= NULL
;
618 static int wacom_led_control(struct wacom
*wacom
)
623 buf
= kzalloc(9, GFP_KERNEL
);
627 if (wacom
->wacom_wac
.features
.type
>= INTUOS5S
&&
628 wacom
->wacom_wac
.features
.type
<= INTUOS5L
) {
630 * Touch Ring and crop mark LED luminance may take on
631 * one of four values:
632 * 0 = Low; 1 = Medium; 2 = High; 3 = Off
634 int ring_led
= wacom
->led
.select
[0] & 0x03;
635 int ring_lum
= (((wacom
->led
.llv
& 0x60) >> 5) - 1) & 0x03;
638 buf
[0] = WAC_CMD_LED_CONTROL
;
639 buf
[1] = (crop_lum
<< 4) | (ring_lum
<< 2) | (ring_led
);
642 int led
= wacom
->led
.select
[0] | 0x4;
644 if (wacom
->wacom_wac
.features
.type
== WACOM_21UX2
||
645 wacom
->wacom_wac
.features
.type
== WACOM_24HD
)
646 led
|= (wacom
->led
.select
[1] << 4) | 0x40;
648 buf
[0] = WAC_CMD_LED_CONTROL
;
650 buf
[2] = wacom
->led
.llv
;
651 buf
[3] = wacom
->led
.hlv
;
652 buf
[4] = wacom
->led
.img_lum
;
655 retval
= wacom_set_report(wacom
->intf
, 0x03, WAC_CMD_LED_CONTROL
,
656 buf
, 9, WAC_CMD_RETRIES
);
662 static int wacom_led_putimage(struct wacom
*wacom
, int button_id
, const void *img
)
667 buf
= kzalloc(259, GFP_KERNEL
);
671 /* Send 'start' command */
672 buf
[0] = WAC_CMD_ICON_START
;
674 retval
= wacom_set_report(wacom
->intf
, 0x03, WAC_CMD_ICON_START
,
675 buf
, 2, WAC_CMD_RETRIES
);
679 buf
[0] = WAC_CMD_ICON_XFER
;
680 buf
[1] = button_id
& 0x07;
681 for (i
= 0; i
< 4; i
++) {
683 memcpy(buf
+ 3, img
+ i
* 256, 256);
685 retval
= wacom_set_report(wacom
->intf
, 0x03, WAC_CMD_ICON_XFER
,
686 buf
, 259, WAC_CMD_RETRIES
);
692 buf
[0] = WAC_CMD_ICON_START
;
694 wacom_set_report(wacom
->intf
, 0x03, WAC_CMD_ICON_START
,
695 buf
, 2, WAC_CMD_RETRIES
);
702 static ssize_t
wacom_led_select_store(struct device
*dev
, int set_id
,
703 const char *buf
, size_t count
)
705 struct wacom
*wacom
= dev_get_drvdata(dev
);
709 err
= kstrtouint(buf
, 10, &id
);
713 mutex_lock(&wacom
->lock
);
715 wacom
->led
.select
[set_id
] = id
& 0x3;
716 err
= wacom_led_control(wacom
);
718 mutex_unlock(&wacom
->lock
);
720 return err
< 0 ? err
: count
;
723 #define DEVICE_LED_SELECT_ATTR(SET_ID) \
724 static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
725 struct device_attribute *attr, const char *buf, size_t count) \
727 return wacom_led_select_store(dev, SET_ID, buf, count); \
729 static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
730 struct device_attribute *attr, char *buf) \
732 struct wacom *wacom = dev_get_drvdata(dev); \
733 return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \
735 static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \
736 wacom_led##SET_ID##_select_show, \
737 wacom_led##SET_ID##_select_store)
739 DEVICE_LED_SELECT_ATTR(0);
740 DEVICE_LED_SELECT_ATTR(1);
742 static ssize_t
wacom_luminance_store(struct wacom
*wacom
, u8
*dest
,
743 const char *buf
, size_t count
)
748 err
= kstrtouint(buf
, 10, &value
);
752 mutex_lock(&wacom
->lock
);
754 *dest
= value
& 0x7f;
755 err
= wacom_led_control(wacom
);
757 mutex_unlock(&wacom
->lock
);
759 return err
< 0 ? err
: count
;
762 #define DEVICE_LUMINANCE_ATTR(name, field) \
763 static ssize_t wacom_##name##_luminance_store(struct device *dev, \
764 struct device_attribute *attr, const char *buf, size_t count) \
766 struct wacom *wacom = dev_get_drvdata(dev); \
768 return wacom_luminance_store(wacom, &wacom->led.field, \
771 static DEVICE_ATTR(name##_luminance, S_IWUSR, \
772 NULL, wacom_##name##_luminance_store)
774 DEVICE_LUMINANCE_ATTR(status0
, llv
);
775 DEVICE_LUMINANCE_ATTR(status1
, hlv
);
776 DEVICE_LUMINANCE_ATTR(buttons
, img_lum
);
778 static ssize_t
wacom_button_image_store(struct device
*dev
, int button_id
,
779 const char *buf
, size_t count
)
781 struct wacom
*wacom
= dev_get_drvdata(dev
);
787 mutex_lock(&wacom
->lock
);
789 err
= wacom_led_putimage(wacom
, button_id
, buf
);
791 mutex_unlock(&wacom
->lock
);
793 return err
< 0 ? err
: count
;
796 #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
797 static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
798 struct device_attribute *attr, const char *buf, size_t count) \
800 return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
802 static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \
803 NULL, wacom_btnimg##BUTTON_ID##_store)
805 DEVICE_BTNIMG_ATTR(0);
806 DEVICE_BTNIMG_ATTR(1);
807 DEVICE_BTNIMG_ATTR(2);
808 DEVICE_BTNIMG_ATTR(3);
809 DEVICE_BTNIMG_ATTR(4);
810 DEVICE_BTNIMG_ATTR(5);
811 DEVICE_BTNIMG_ATTR(6);
812 DEVICE_BTNIMG_ATTR(7);
814 static struct attribute
*cintiq_led_attrs
[] = {
815 &dev_attr_status_led0_select
.attr
,
816 &dev_attr_status_led1_select
.attr
,
820 static struct attribute_group cintiq_led_attr_group
= {
822 .attrs
= cintiq_led_attrs
,
825 static struct attribute
*intuos4_led_attrs
[] = {
826 &dev_attr_status0_luminance
.attr
,
827 &dev_attr_status1_luminance
.attr
,
828 &dev_attr_status_led0_select
.attr
,
829 &dev_attr_buttons_luminance
.attr
,
830 &dev_attr_button0_rawimg
.attr
,
831 &dev_attr_button1_rawimg
.attr
,
832 &dev_attr_button2_rawimg
.attr
,
833 &dev_attr_button3_rawimg
.attr
,
834 &dev_attr_button4_rawimg
.attr
,
835 &dev_attr_button5_rawimg
.attr
,
836 &dev_attr_button6_rawimg
.attr
,
837 &dev_attr_button7_rawimg
.attr
,
841 static struct attribute_group intuos4_led_attr_group
= {
843 .attrs
= intuos4_led_attrs
,
846 static struct attribute
*intuos5_led_attrs
[] = {
847 &dev_attr_status0_luminance
.attr
,
848 &dev_attr_status_led0_select
.attr
,
852 static struct attribute_group intuos5_led_attr_group
= {
854 .attrs
= intuos5_led_attrs
,
857 static int wacom_initialize_leds(struct wacom
*wacom
)
861 /* Initialize default values */
862 switch (wacom
->wacom_wac
.features
.type
) {
865 wacom
->led
.select
[0] = 0;
866 wacom
->led
.select
[1] = 0;
869 wacom
->led
.img_lum
= 10;
870 error
= sysfs_create_group(&wacom
->intf
->dev
.kobj
,
871 &intuos4_led_attr_group
);
876 wacom
->led
.select
[0] = 0;
877 wacom
->led
.select
[1] = 0;
880 wacom
->led
.img_lum
= 0;
882 error
= sysfs_create_group(&wacom
->intf
->dev
.kobj
,
883 &cintiq_led_attr_group
);
889 wacom
->led
.select
[0] = 0;
890 wacom
->led
.select
[1] = 0;
893 wacom
->led
.img_lum
= 0;
895 error
= sysfs_create_group(&wacom
->intf
->dev
.kobj
,
896 &intuos5_led_attr_group
);
904 dev_err(&wacom
->intf
->dev
,
905 "cannot create sysfs group err: %d\n", error
);
908 wacom_led_control(wacom
);
913 static void wacom_destroy_leds(struct wacom
*wacom
)
915 switch (wacom
->wacom_wac
.features
.type
) {
918 sysfs_remove_group(&wacom
->intf
->dev
.kobj
,
919 &intuos4_led_attr_group
);
924 sysfs_remove_group(&wacom
->intf
->dev
.kobj
,
925 &cintiq_led_attr_group
);
931 sysfs_remove_group(&wacom
->intf
->dev
.kobj
,
932 &intuos5_led_attr_group
);
937 static enum power_supply_property wacom_battery_props
[] = {
938 POWER_SUPPLY_PROP_CAPACITY
941 static int wacom_battery_get_property(struct power_supply
*psy
,
942 enum power_supply_property psp
,
943 union power_supply_propval
*val
)
945 struct wacom
*wacom
= container_of(psy
, struct wacom
, battery
);
949 case POWER_SUPPLY_PROP_CAPACITY
:
951 wacom
->wacom_wac
.battery_capacity
* 100 / 31;
961 static int wacom_initialize_battery(struct wacom
*wacom
)
965 if (wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_MONITOR
) {
966 wacom
->battery
.properties
= wacom_battery_props
;
967 wacom
->battery
.num_properties
= ARRAY_SIZE(wacom_battery_props
);
968 wacom
->battery
.get_property
= wacom_battery_get_property
;
969 wacom
->battery
.name
= "wacom_battery";
970 wacom
->battery
.type
= POWER_SUPPLY_TYPE_BATTERY
;
971 wacom
->battery
.use_for_apm
= 0;
973 error
= power_supply_register(&wacom
->usbdev
->dev
,
980 static void wacom_destroy_battery(struct wacom
*wacom
)
982 if (wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_MONITOR
)
983 power_supply_unregister(&wacom
->battery
);
986 static int wacom_register_input(struct wacom
*wacom
)
988 struct input_dev
*input_dev
;
989 struct usb_interface
*intf
= wacom
->intf
;
990 struct usb_device
*dev
= interface_to_usbdev(intf
);
991 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
994 input_dev
= input_allocate_device();
1000 input_dev
->name
= wacom_wac
->name
;
1001 input_dev
->dev
.parent
= &intf
->dev
;
1002 input_dev
->open
= wacom_open
;
1003 input_dev
->close
= wacom_close
;
1004 usb_to_input_id(dev
, &input_dev
->id
);
1005 input_set_drvdata(input_dev
, wacom
);
1007 wacom_wac
->input
= input_dev
;
1008 error
= wacom_setup_input_capabilities(input_dev
, wacom_wac
);
1012 error
= input_register_device(input_dev
);
1019 input_free_device(input_dev
);
1020 wacom_wac
->input
= NULL
;
1025 static void wacom_wireless_work(struct work_struct
*work
)
1027 struct wacom
*wacom
= container_of(work
, struct wacom
, work
);
1028 struct usb_device
*usbdev
= wacom
->usbdev
;
1029 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
1032 * Regardless if this is a disconnect or a new tablet,
1033 * remove any existing input devices.
1036 /* Stylus interface */
1037 wacom
= usb_get_intfdata(usbdev
->config
->interface
[1]);
1038 if (wacom
->wacom_wac
.input
)
1039 input_unregister_device(wacom
->wacom_wac
.input
);
1040 wacom
->wacom_wac
.input
= NULL
;
1042 /* Touch interface */
1043 wacom
= usb_get_intfdata(usbdev
->config
->interface
[2]);
1044 if (wacom
->wacom_wac
.input
)
1045 input_unregister_device(wacom
->wacom_wac
.input
);
1046 wacom
->wacom_wac
.input
= NULL
;
1048 if (wacom_wac
->pid
== 0) {
1049 dev_info(&wacom
->intf
->dev
, "wireless tablet disconnected\n");
1051 const struct usb_device_id
*id
= wacom_ids
;
1053 dev_info(&wacom
->intf
->dev
,
1054 "wireless tablet connected with PID %x\n",
1057 while (id
->match_flags
) {
1058 if (id
->idVendor
== USB_VENDOR_ID_WACOM
&&
1059 id
->idProduct
== wacom_wac
->pid
)
1064 if (!id
->match_flags
) {
1065 dev_info(&wacom
->intf
->dev
,
1066 "ignoring unknown PID.\n");
1070 /* Stylus interface */
1071 wacom
= usb_get_intfdata(usbdev
->config
->interface
[1]);
1072 wacom_wac
= &wacom
->wacom_wac
;
1073 wacom_wac
->features
=
1074 *((struct wacom_features
*)id
->driver_info
);
1075 wacom_wac
->features
.device_type
= BTN_TOOL_PEN
;
1076 wacom_register_input(wacom
);
1078 /* Touch interface */
1079 wacom
= usb_get_intfdata(usbdev
->config
->interface
[2]);
1080 wacom_wac
= &wacom
->wacom_wac
;
1081 wacom_wac
->features
=
1082 *((struct wacom_features
*)id
->driver_info
);
1083 wacom_wac
->features
.pktlen
= WACOM_PKGLEN_BBTOUCH3
;
1084 wacom_wac
->features
.device_type
= BTN_TOOL_FINGER
;
1085 wacom_set_phy_from_res(&wacom_wac
->features
);
1086 wacom_wac
->features
.x_max
= wacom_wac
->features
.y_max
= 4096;
1087 wacom_register_input(wacom
);
1091 static int wacom_probe(struct usb_interface
*intf
, const struct usb_device_id
*id
)
1093 struct usb_device
*dev
= interface_to_usbdev(intf
);
1094 struct usb_endpoint_descriptor
*endpoint
;
1095 struct wacom
*wacom
;
1096 struct wacom_wac
*wacom_wac
;
1097 struct wacom_features
*features
;
1100 if (!id
->driver_info
)
1103 wacom
= kzalloc(sizeof(struct wacom
), GFP_KERNEL
);
1107 wacom_wac
= &wacom
->wacom_wac
;
1108 wacom_wac
->features
= *((struct wacom_features
*)id
->driver_info
);
1109 features
= &wacom_wac
->features
;
1110 if (features
->pktlen
> WACOM_PKGLEN_MAX
) {
1115 wacom_wac
->data
= usb_alloc_coherent(dev
, WACOM_PKGLEN_MAX
,
1116 GFP_KERNEL
, &wacom
->data_dma
);
1117 if (!wacom_wac
->data
) {
1122 wacom
->irq
= usb_alloc_urb(0, GFP_KERNEL
);
1128 wacom
->usbdev
= dev
;
1130 mutex_init(&wacom
->lock
);
1131 INIT_WORK(&wacom
->work
, wacom_wireless_work
);
1132 usb_make_path(dev
, wacom
->phys
, sizeof(wacom
->phys
));
1133 strlcat(wacom
->phys
, "/input0", sizeof(wacom
->phys
));
1135 endpoint
= &intf
->cur_altsetting
->endpoint
[0].desc
;
1137 /* Retrieve the physical and logical size for touch devices */
1138 error
= wacom_retrieve_hid_descriptor(intf
, features
);
1143 * Intuos5 has no useful data about its touch interface in its
1144 * HID descriptor. If this is the touch interface (wMaxPacketSize
1145 * of WACOM_PKGLEN_BBTOUCH3), override the table values.
1147 if (features
->type
>= INTUOS5S
&& features
->type
<= INTUOS5L
) {
1148 if (endpoint
->wMaxPacketSize
== WACOM_PKGLEN_BBTOUCH3
) {
1149 features
->device_type
= BTN_TOOL_FINGER
;
1150 features
->pktlen
= WACOM_PKGLEN_BBTOUCH3
;
1153 (features
->x_max
* 100) / features
->x_resolution
;
1155 (features
->y_max
* 100) / features
->y_resolution
;
1157 features
->x_max
= 4096;
1158 features
->y_max
= 4096;
1160 features
->device_type
= BTN_TOOL_PEN
;
1164 wacom_setup_device_quirks(features
);
1166 strlcpy(wacom_wac
->name
, features
->name
, sizeof(wacom_wac
->name
));
1168 if (features
->quirks
& WACOM_QUIRK_MULTI_INPUT
) {
1169 /* Append the device type to the name */
1170 strlcat(wacom_wac
->name
,
1171 features
->device_type
== BTN_TOOL_PEN
?
1173 sizeof(wacom_wac
->name
));
1175 error
= wacom_add_shared_data(wacom_wac
, dev
);
1180 usb_fill_int_urb(wacom
->irq
, dev
,
1181 usb_rcvintpipe(dev
, endpoint
->bEndpointAddress
),
1182 wacom_wac
->data
, features
->pktlen
,
1183 wacom_sys_irq
, wacom
, endpoint
->bInterval
);
1184 wacom
->irq
->transfer_dma
= wacom
->data_dma
;
1185 wacom
->irq
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
1187 error
= wacom_initialize_leds(wacom
);
1191 error
= wacom_initialize_battery(wacom
);
1195 if (!(features
->quirks
& WACOM_QUIRK_NO_INPUT
)) {
1196 error
= wacom_register_input(wacom
);
1201 /* Note that if query fails it is not a hard failure */
1202 wacom_query_tablet_data(intf
, features
);
1204 usb_set_intfdata(intf
, wacom
);
1206 if (features
->quirks
& WACOM_QUIRK_MONITOR
) {
1207 if (usb_submit_urb(wacom
->irq
, GFP_KERNEL
))
1213 fail6
: wacom_destroy_battery(wacom
);
1214 fail5
: wacom_destroy_leds(wacom
);
1215 fail4
: wacom_remove_shared_data(wacom_wac
);
1216 fail3
: usb_free_urb(wacom
->irq
);
1217 fail2
: usb_free_coherent(dev
, WACOM_PKGLEN_MAX
, wacom_wac
->data
, wacom
->data_dma
);
1218 fail1
: kfree(wacom
);
1222 static void wacom_disconnect(struct usb_interface
*intf
)
1224 struct wacom
*wacom
= usb_get_intfdata(intf
);
1226 usb_set_intfdata(intf
, NULL
);
1228 usb_kill_urb(wacom
->irq
);
1229 cancel_work_sync(&wacom
->work
);
1230 if (wacom
->wacom_wac
.input
)
1231 input_unregister_device(wacom
->wacom_wac
.input
);
1232 wacom_destroy_battery(wacom
);
1233 wacom_destroy_leds(wacom
);
1234 usb_free_urb(wacom
->irq
);
1235 usb_free_coherent(interface_to_usbdev(intf
), WACOM_PKGLEN_MAX
,
1236 wacom
->wacom_wac
.data
, wacom
->data_dma
);
1237 wacom_remove_shared_data(&wacom
->wacom_wac
);
1241 static int wacom_suspend(struct usb_interface
*intf
, pm_message_t message
)
1243 struct wacom
*wacom
= usb_get_intfdata(intf
);
1245 mutex_lock(&wacom
->lock
);
1246 usb_kill_urb(wacom
->irq
);
1247 mutex_unlock(&wacom
->lock
);
1252 static int wacom_resume(struct usb_interface
*intf
)
1254 struct wacom
*wacom
= usb_get_intfdata(intf
);
1255 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
1258 mutex_lock(&wacom
->lock
);
1260 /* switch to wacom mode first */
1261 wacom_query_tablet_data(intf
, features
);
1262 wacom_led_control(wacom
);
1264 if ((wacom
->open
|| features
->quirks
& WACOM_QUIRK_MONITOR
)
1265 && usb_submit_urb(wacom
->irq
, GFP_NOIO
) < 0)
1268 mutex_unlock(&wacom
->lock
);
1273 static int wacom_reset_resume(struct usb_interface
*intf
)
1275 return wacom_resume(intf
);
1278 static struct usb_driver wacom_driver
= {
1280 .id_table
= wacom_ids
,
1281 .probe
= wacom_probe
,
1282 .disconnect
= wacom_disconnect
,
1283 .suspend
= wacom_suspend
,
1284 .resume
= wacom_resume
,
1285 .reset_resume
= wacom_reset_resume
,
1286 .supports_autosuspend
= 1,
1289 module_usb_driver(wacom_driver
);