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
;
105 switch (urb
->status
) {
112 /* this urb is terminated, clean up */
113 dbg("%s - urb shutting down with status: %d", __func__
, urb
->status
);
116 dbg("%s - nonzero urb status received: %d", __func__
, urb
->status
);
120 wacom_wac_irq(&wacom
->wacom_wac
, urb
->actual_length
);
123 usb_mark_last_busy(wacom
->usbdev
);
124 retval
= usb_submit_urb(urb
, GFP_ATOMIC
);
126 err ("%s - usb_submit_urb failed with result %d",
130 static int wacom_open(struct input_dev
*dev
)
132 struct wacom
*wacom
= input_get_drvdata(dev
);
135 if (usb_autopm_get_interface(wacom
->intf
) < 0)
138 mutex_lock(&wacom
->lock
);
140 if (usb_submit_urb(wacom
->irq
, GFP_KERNEL
)) {
146 wacom
->intf
->needs_remote_wakeup
= 1;
149 mutex_unlock(&wacom
->lock
);
150 usb_autopm_put_interface(wacom
->intf
);
154 static void wacom_close(struct input_dev
*dev
)
156 struct wacom
*wacom
= input_get_drvdata(dev
);
159 autopm_error
= usb_autopm_get_interface(wacom
->intf
);
161 mutex_lock(&wacom
->lock
);
162 usb_kill_urb(wacom
->irq
);
164 wacom
->intf
->needs_remote_wakeup
= 0;
165 mutex_unlock(&wacom
->lock
);
168 usb_autopm_put_interface(wacom
->intf
);
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.
178 static void wacom_set_phy_from_res(struct wacom_features
*features
)
180 features
->x_phy
= (features
->x_max
* 100) / features
->x_resolution
;
181 features
->y_phy
= (features
->y_max
* 100) / features
->y_resolution
;
184 static int wacom_parse_logical_collection(unsigned char *report
,
185 struct wacom_features
*features
)
189 if (features
->type
== BAMBOO_PT
) {
191 /* Logical collection is only used by 3rd gen Bamboo Touch */
192 features
->pktlen
= WACOM_PKGLEN_BBTOUCH3
;
193 features
->device_type
= BTN_TOOL_FINGER
;
195 wacom_set_phy_from_res(features
);
197 features
->x_max
= features
->y_max
=
198 get_unaligned_le16(&report
[10]);
205 static void wacom_retrieve_report_data(struct usb_interface
*intf
,
206 struct wacom_features
*features
)
209 unsigned char *rep_data
;
211 rep_data
= kmalloc(2, GFP_KERNEL
);
215 result
= wacom_get_report(intf
, WAC_HID_FEATURE_REPORT
,
216 rep_data
[0], &rep_data
, 2,
219 if (result
>= 0 && rep_data
[1] > 2)
220 features
->touch_max
= rep_data
[1];
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.
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.
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.
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.
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.
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.
259 * Intuos5 touch interface does not contain useful data. We deal with
260 * this after returning from this function.
262 static int wacom_parse_hid(struct usb_interface
*intf
,
263 struct hid_descriptor
*hid_desc
,
264 struct wacom_features
*features
)
266 struct usb_device
*dev
= interface_to_usbdev(intf
);
268 /* result has to be defined as int for some devices */
270 int i
= 0, usage
= WCM_UNDEFINED
, finger
= 0, pen
= 0;
271 unsigned char *report
;
273 report
= kzalloc(hid_desc
->wDescriptorLength
, GFP_KERNEL
);
277 /* retrive report descriptors */
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 */
285 hid_desc
->wDescriptorLength
,
287 } while (result
< 0 && limit
++ < WAC_MSG_RETRIES
);
289 /* No need to parse the Descriptor. It isn't an error though */
293 for (i
= 0; i
< hid_desc
->wDescriptorLength
; i
++) {
297 switch (report
[i
+ 1]) {
298 case HID_USAGE_PAGE_DIGITIZER
:
299 usage
= WCM_DIGITIZER
;
303 case HID_USAGE_PAGE_DESKTOP
:
311 switch (report
[i
+ 1]) {
313 if (usage
== WCM_DESKTOP
) {
315 features
->device_type
= BTN_TOOL_FINGER
;
316 if (features
->type
== TABLETPC2FG
) {
317 /* need to reset back */
318 features
->pktlen
= WACOM_PKGLEN_TPC2FG
;
321 if (features
->type
== MTSCREEN
)
322 features
->pktlen
= WACOM_PKGLEN_MTOUCH
;
324 if (features
->type
== BAMBOO_PT
) {
325 /* need to reset back */
326 features
->pktlen
= WACOM_PKGLEN_BBTOUCH
;
328 get_unaligned_le16(&report
[i
+ 5]);
330 get_unaligned_le16(&report
[i
+ 8]);
334 get_unaligned_le16(&report
[i
+ 3]);
336 get_unaligned_le16(&report
[i
+ 6]);
337 features
->unit
= report
[i
+ 9];
338 features
->unitExpo
= report
[i
+ 11];
342 /* penabled only accepts exact bytes of data */
343 if (features
->type
== TABLETPC2FG
)
344 features
->pktlen
= WACOM_PKGLEN_GRAPHIRE
;
345 features
->device_type
= BTN_TOOL_PEN
;
347 get_unaligned_le16(&report
[i
+ 3]);
354 if (usage
== WCM_DESKTOP
) {
356 int type
= features
->type
;
358 if (type
== TABLETPC2FG
|| type
== MTSCREEN
) {
360 get_unaligned_le16(&report
[i
+ 3]);
362 get_unaligned_le16(&report
[i
+ 6]);
364 } else if (type
== BAMBOO_PT
) {
366 get_unaligned_le16(&report
[i
+ 3]);
368 get_unaligned_le16(&report
[i
+ 6]);
374 get_unaligned_le16(&report
[i
+ 3]);
379 get_unaligned_le16(&report
[i
+ 3]);
385 case HID_USAGE_FINGER
:
391 * Requiring Stylus Usage will ignore boot mouse
392 * X/Y values and some cases of invalid Digitizer X/Y
393 * values commonly reported.
395 case HID_USAGE_STYLUS
:
400 case HID_USAGE_CONTACTMAX
:
401 wacom_retrieve_report_data(intf
, features
);
407 case HID_COLLECTION_END
:
408 /* reset UsagePage and Finger */
415 case HID_COLLECTION_LOGICAL
:
416 i
+= wacom_parse_logical_collection(&report
[i
],
430 static int wacom_query_tablet_data(struct usb_interface
*intf
, struct wacom_features
*features
)
432 unsigned char *rep_data
;
433 int limit
= 0, report_id
= 2;
436 rep_data
= kmalloc(4, GFP_KERNEL
);
440 /* ask to report Wacom data */
441 if (features
->device_type
== BTN_TOOL_FINGER
) {
442 /* if it is an MT Tablet PC touch */
443 if (features
->type
== TABLETPC2FG
||
444 features
->type
== MTSCREEN
) {
451 error
= wacom_set_report(intf
,
452 WAC_HID_FEATURE_REPORT
,
456 error
= wacom_get_report(intf
,
457 WAC_HID_FEATURE_REPORT
,
460 } while ((error
< 0 || rep_data
[1] != 4) &&
461 limit
++ < WAC_MSG_RETRIES
);
463 } else if (features
->type
!= TABLETPC
&&
464 features
->type
!= WIRELESS
&&
465 features
->device_type
== BTN_TOOL_PEN
) {
469 error
= wacom_set_report(intf
, WAC_HID_FEATURE_REPORT
,
470 report_id
, rep_data
, 2, 1);
472 error
= wacom_get_report(intf
,
473 WAC_HID_FEATURE_REPORT
,
474 report_id
, rep_data
, 2, 1);
475 } while ((error
< 0 || rep_data
[1] != 2) && limit
++ < WAC_MSG_RETRIES
);
480 return error
< 0 ? error
: 0;
483 static int wacom_retrieve_hid_descriptor(struct usb_interface
*intf
,
484 struct wacom_features
*features
)
487 struct usb_host_interface
*interface
= intf
->cur_altsetting
;
488 struct hid_descriptor
*hid_desc
;
490 /* default features */
491 features
->device_type
= BTN_TOOL_PEN
;
492 features
->x_fuzz
= 4;
493 features
->y_fuzz
= 4;
494 features
->pressure_fuzz
= 0;
495 features
->distance_fuzz
= 0;
498 * The wireless device HID is basic and layout conflicts with
499 * other tablets (monitor and touch interface can look like pen).
500 * Skip the query for this type and modify defaults based on
503 if (features
->type
== WIRELESS
) {
504 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
== 0) {
505 features
->device_type
= 0;
506 } else if (intf
->cur_altsetting
->desc
.bInterfaceNumber
== 2) {
507 features
->device_type
= BTN_TOOL_DOUBLETAP
;
508 features
->pktlen
= WACOM_PKGLEN_BBTOUCH3
;
512 /* only devices that support touch need to retrieve the info */
513 if (features
->type
!= TABLETPC
&&
514 features
->type
!= TABLETPC2FG
&&
515 features
->type
!= BAMBOO_PT
&&
516 features
->type
!= MTSCREEN
) {
520 if (usb_get_extra_descriptor(interface
, HID_DEVICET_HID
, &hid_desc
)) {
521 if (usb_get_extra_descriptor(&interface
->endpoint
[0],
522 HID_DEVICET_REPORT
, &hid_desc
)) {
523 printk("wacom: can not retrieve extra class descriptor\n");
528 error
= wacom_parse_hid(intf
, hid_desc
, features
);
536 struct wacom_usbdev_data
{
537 struct list_head list
;
539 struct usb_device
*dev
;
540 struct wacom_shared shared
;
543 static LIST_HEAD(wacom_udev_list
);
544 static DEFINE_MUTEX(wacom_udev_list_lock
);
546 static struct wacom_usbdev_data
*wacom_get_usbdev_data(struct usb_device
*dev
)
548 struct wacom_usbdev_data
*data
;
550 list_for_each_entry(data
, &wacom_udev_list
, list
) {
551 if (data
->dev
== dev
) {
552 kref_get(&data
->kref
);
560 static int wacom_add_shared_data(struct wacom_wac
*wacom
,
561 struct usb_device
*dev
)
563 struct wacom_usbdev_data
*data
;
566 mutex_lock(&wacom_udev_list_lock
);
568 data
= wacom_get_usbdev_data(dev
);
570 data
= kzalloc(sizeof(struct wacom_usbdev_data
), GFP_KERNEL
);
576 kref_init(&data
->kref
);
578 list_add_tail(&data
->list
, &wacom_udev_list
);
581 wacom
->shared
= &data
->shared
;
584 mutex_unlock(&wacom_udev_list_lock
);
588 static void wacom_release_shared_data(struct kref
*kref
)
590 struct wacom_usbdev_data
*data
=
591 container_of(kref
, struct wacom_usbdev_data
, kref
);
593 mutex_lock(&wacom_udev_list_lock
);
594 list_del(&data
->list
);
595 mutex_unlock(&wacom_udev_list_lock
);
600 static void wacom_remove_shared_data(struct wacom_wac
*wacom
)
602 struct wacom_usbdev_data
*data
;
605 data
= container_of(wacom
->shared
, struct wacom_usbdev_data
, shared
);
606 kref_put(&data
->kref
, wacom_release_shared_data
);
607 wacom
->shared
= NULL
;
611 static int wacom_led_control(struct wacom
*wacom
)
616 buf
= kzalloc(9, GFP_KERNEL
);
620 if (wacom
->wacom_wac
.features
.type
>= INTUOS5S
&&
621 wacom
->wacom_wac
.features
.type
<= INTUOS5L
) {
623 * Touch Ring and crop mark LED luminance may take on
624 * one of four values:
625 * 0 = Low; 1 = Medium; 2 = High; 3 = Off
627 int ring_led
= wacom
->led
.select
[0] & 0x03;
628 int ring_lum
= (((wacom
->led
.llv
& 0x60) >> 5) - 1) & 0x03;
631 buf
[0] = WAC_CMD_LED_CONTROL
;
632 buf
[1] = (crop_lum
<< 4) | (ring_lum
<< 2) | (ring_led
);
635 int led
= wacom
->led
.select
[0] | 0x4;
637 if (wacom
->wacom_wac
.features
.type
== WACOM_21UX2
||
638 wacom
->wacom_wac
.features
.type
== WACOM_24HD
)
639 led
|= (wacom
->led
.select
[1] << 4) | 0x40;
641 buf
[0] = WAC_CMD_LED_CONTROL
;
643 buf
[2] = wacom
->led
.llv
;
644 buf
[3] = wacom
->led
.hlv
;
645 buf
[4] = wacom
->led
.img_lum
;
648 retval
= wacom_set_report(wacom
->intf
, 0x03, WAC_CMD_LED_CONTROL
,
649 buf
, 9, WAC_CMD_RETRIES
);
655 static int wacom_led_putimage(struct wacom
*wacom
, int button_id
, const void *img
)
660 buf
= kzalloc(259, GFP_KERNEL
);
664 /* Send 'start' command */
665 buf
[0] = WAC_CMD_ICON_START
;
667 retval
= wacom_set_report(wacom
->intf
, 0x03, WAC_CMD_ICON_START
,
668 buf
, 2, WAC_CMD_RETRIES
);
672 buf
[0] = WAC_CMD_ICON_XFER
;
673 buf
[1] = button_id
& 0x07;
674 for (i
= 0; i
< 4; i
++) {
676 memcpy(buf
+ 3, img
+ i
* 256, 256);
678 retval
= wacom_set_report(wacom
->intf
, 0x03, WAC_CMD_ICON_XFER
,
679 buf
, 259, WAC_CMD_RETRIES
);
685 buf
[0] = WAC_CMD_ICON_START
;
687 wacom_set_report(wacom
->intf
, 0x03, WAC_CMD_ICON_START
,
688 buf
, 2, WAC_CMD_RETRIES
);
695 static ssize_t
wacom_led_select_store(struct device
*dev
, int set_id
,
696 const char *buf
, size_t count
)
698 struct wacom
*wacom
= dev_get_drvdata(dev
);
702 err
= kstrtouint(buf
, 10, &id
);
706 mutex_lock(&wacom
->lock
);
708 wacom
->led
.select
[set_id
] = id
& 0x3;
709 err
= wacom_led_control(wacom
);
711 mutex_unlock(&wacom
->lock
);
713 return err
< 0 ? err
: count
;
716 #define DEVICE_LED_SELECT_ATTR(SET_ID) \
717 static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
718 struct device_attribute *attr, const char *buf, size_t count) \
720 return wacom_led_select_store(dev, SET_ID, buf, count); \
722 static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
723 struct device_attribute *attr, char *buf) \
725 struct wacom *wacom = dev_get_drvdata(dev); \
726 return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \
728 static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \
729 wacom_led##SET_ID##_select_show, \
730 wacom_led##SET_ID##_select_store)
732 DEVICE_LED_SELECT_ATTR(0);
733 DEVICE_LED_SELECT_ATTR(1);
735 static ssize_t
wacom_luminance_store(struct wacom
*wacom
, u8
*dest
,
736 const char *buf
, size_t count
)
741 err
= kstrtouint(buf
, 10, &value
);
745 mutex_lock(&wacom
->lock
);
747 *dest
= value
& 0x7f;
748 err
= wacom_led_control(wacom
);
750 mutex_unlock(&wacom
->lock
);
752 return err
< 0 ? err
: count
;
755 #define DEVICE_LUMINANCE_ATTR(name, field) \
756 static ssize_t wacom_##name##_luminance_store(struct device *dev, \
757 struct device_attribute *attr, const char *buf, size_t count) \
759 struct wacom *wacom = dev_get_drvdata(dev); \
761 return wacom_luminance_store(wacom, &wacom->led.field, \
764 static DEVICE_ATTR(name##_luminance, S_IWUSR, \
765 NULL, wacom_##name##_luminance_store)
767 DEVICE_LUMINANCE_ATTR(status0
, llv
);
768 DEVICE_LUMINANCE_ATTR(status1
, hlv
);
769 DEVICE_LUMINANCE_ATTR(buttons
, img_lum
);
771 static ssize_t
wacom_button_image_store(struct device
*dev
, int button_id
,
772 const char *buf
, size_t count
)
774 struct wacom
*wacom
= dev_get_drvdata(dev
);
780 mutex_lock(&wacom
->lock
);
782 err
= wacom_led_putimage(wacom
, button_id
, buf
);
784 mutex_unlock(&wacom
->lock
);
786 return err
< 0 ? err
: count
;
789 #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
790 static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
791 struct device_attribute *attr, const char *buf, size_t count) \
793 return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
795 static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \
796 NULL, wacom_btnimg##BUTTON_ID##_store)
798 DEVICE_BTNIMG_ATTR(0);
799 DEVICE_BTNIMG_ATTR(1);
800 DEVICE_BTNIMG_ATTR(2);
801 DEVICE_BTNIMG_ATTR(3);
802 DEVICE_BTNIMG_ATTR(4);
803 DEVICE_BTNIMG_ATTR(5);
804 DEVICE_BTNIMG_ATTR(6);
805 DEVICE_BTNIMG_ATTR(7);
807 static struct attribute
*cintiq_led_attrs
[] = {
808 &dev_attr_status_led0_select
.attr
,
809 &dev_attr_status_led1_select
.attr
,
813 static struct attribute_group cintiq_led_attr_group
= {
815 .attrs
= cintiq_led_attrs
,
818 static struct attribute
*intuos4_led_attrs
[] = {
819 &dev_attr_status0_luminance
.attr
,
820 &dev_attr_status1_luminance
.attr
,
821 &dev_attr_status_led0_select
.attr
,
822 &dev_attr_buttons_luminance
.attr
,
823 &dev_attr_button0_rawimg
.attr
,
824 &dev_attr_button1_rawimg
.attr
,
825 &dev_attr_button2_rawimg
.attr
,
826 &dev_attr_button3_rawimg
.attr
,
827 &dev_attr_button4_rawimg
.attr
,
828 &dev_attr_button5_rawimg
.attr
,
829 &dev_attr_button6_rawimg
.attr
,
830 &dev_attr_button7_rawimg
.attr
,
834 static struct attribute_group intuos4_led_attr_group
= {
836 .attrs
= intuos4_led_attrs
,
839 static struct attribute
*intuos5_led_attrs
[] = {
840 &dev_attr_status0_luminance
.attr
,
841 &dev_attr_status_led0_select
.attr
,
845 static struct attribute_group intuos5_led_attr_group
= {
847 .attrs
= intuos5_led_attrs
,
850 static int wacom_initialize_leds(struct wacom
*wacom
)
854 /* Initialize default values */
855 switch (wacom
->wacom_wac
.features
.type
) {
858 wacom
->led
.select
[0] = 0;
859 wacom
->led
.select
[1] = 0;
862 wacom
->led
.img_lum
= 10;
863 error
= sysfs_create_group(&wacom
->intf
->dev
.kobj
,
864 &intuos4_led_attr_group
);
869 wacom
->led
.select
[0] = 0;
870 wacom
->led
.select
[1] = 0;
873 wacom
->led
.img_lum
= 0;
875 error
= sysfs_create_group(&wacom
->intf
->dev
.kobj
,
876 &cintiq_led_attr_group
);
882 wacom
->led
.select
[0] = 0;
883 wacom
->led
.select
[1] = 0;
886 wacom
->led
.img_lum
= 0;
888 error
= sysfs_create_group(&wacom
->intf
->dev
.kobj
,
889 &intuos5_led_attr_group
);
897 dev_err(&wacom
->intf
->dev
,
898 "cannot create sysfs group err: %d\n", error
);
901 wacom_led_control(wacom
);
906 static void wacom_destroy_leds(struct wacom
*wacom
)
908 switch (wacom
->wacom_wac
.features
.type
) {
911 sysfs_remove_group(&wacom
->intf
->dev
.kobj
,
912 &intuos4_led_attr_group
);
917 sysfs_remove_group(&wacom
->intf
->dev
.kobj
,
918 &cintiq_led_attr_group
);
924 sysfs_remove_group(&wacom
->intf
->dev
.kobj
,
925 &intuos5_led_attr_group
);
930 static enum power_supply_property wacom_battery_props
[] = {
931 POWER_SUPPLY_PROP_CAPACITY
934 static int wacom_battery_get_property(struct power_supply
*psy
,
935 enum power_supply_property psp
,
936 union power_supply_propval
*val
)
938 struct wacom
*wacom
= container_of(psy
, struct wacom
, battery
);
942 case POWER_SUPPLY_PROP_CAPACITY
:
944 wacom
->wacom_wac
.battery_capacity
* 100 / 31;
954 static int wacom_initialize_battery(struct wacom
*wacom
)
958 if (wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_MONITOR
) {
959 wacom
->battery
.properties
= wacom_battery_props
;
960 wacom
->battery
.num_properties
= ARRAY_SIZE(wacom_battery_props
);
961 wacom
->battery
.get_property
= wacom_battery_get_property
;
962 wacom
->battery
.name
= "wacom_battery";
963 wacom
->battery
.type
= POWER_SUPPLY_TYPE_BATTERY
;
964 wacom
->battery
.use_for_apm
= 0;
966 error
= power_supply_register(&wacom
->usbdev
->dev
,
973 static void wacom_destroy_battery(struct wacom
*wacom
)
975 if (wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_MONITOR
)
976 power_supply_unregister(&wacom
->battery
);
979 static int wacom_register_input(struct wacom
*wacom
)
981 struct input_dev
*input_dev
;
982 struct usb_interface
*intf
= wacom
->intf
;
983 struct usb_device
*dev
= interface_to_usbdev(intf
);
984 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
987 input_dev
= input_allocate_device();
993 input_dev
->name
= wacom_wac
->name
;
994 input_dev
->dev
.parent
= &intf
->dev
;
995 input_dev
->open
= wacom_open
;
996 input_dev
->close
= wacom_close
;
997 usb_to_input_id(dev
, &input_dev
->id
);
998 input_set_drvdata(input_dev
, wacom
);
1000 wacom_wac
->input
= input_dev
;
1001 error
= wacom_setup_input_capabilities(input_dev
, wacom_wac
);
1005 error
= input_register_device(input_dev
);
1012 input_free_device(input_dev
);
1013 wacom_wac
->input
= NULL
;
1018 static void wacom_wireless_work(struct work_struct
*work
)
1020 struct wacom
*wacom
= container_of(work
, struct wacom
, work
);
1021 struct usb_device
*usbdev
= wacom
->usbdev
;
1022 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
1025 * Regardless if this is a disconnect or a new tablet,
1026 * remove any existing input devices.
1029 /* Stylus interface */
1030 wacom
= usb_get_intfdata(usbdev
->config
->interface
[1]);
1031 if (wacom
->wacom_wac
.input
)
1032 input_unregister_device(wacom
->wacom_wac
.input
);
1033 wacom
->wacom_wac
.input
= 0;
1035 /* Touch interface */
1036 wacom
= usb_get_intfdata(usbdev
->config
->interface
[2]);
1037 if (wacom
->wacom_wac
.input
)
1038 input_unregister_device(wacom
->wacom_wac
.input
);
1039 wacom
->wacom_wac
.input
= 0;
1041 if (wacom_wac
->pid
== 0) {
1042 printk(KERN_INFO
"wacom: wireless tablet disconnected\n");
1044 const struct usb_device_id
*id
= wacom_ids
;
1047 "wacom: wireless tablet connected with PID %x\n",
1050 while (id
->match_flags
) {
1051 if (id
->idVendor
== USB_VENDOR_ID_WACOM
&&
1052 id
->idProduct
== wacom_wac
->pid
)
1057 if (!id
->match_flags
) {
1059 "wacom: ignorning unknown PID.\n");
1063 /* Stylus interface */
1064 wacom
= usb_get_intfdata(usbdev
->config
->interface
[1]);
1065 wacom_wac
= &wacom
->wacom_wac
;
1066 wacom_wac
->features
=
1067 *((struct wacom_features
*)id
->driver_info
);
1068 wacom_wac
->features
.device_type
= BTN_TOOL_PEN
;
1069 wacom_register_input(wacom
);
1071 /* Touch interface */
1072 wacom
= usb_get_intfdata(usbdev
->config
->interface
[2]);
1073 wacom_wac
= &wacom
->wacom_wac
;
1074 wacom_wac
->features
=
1075 *((struct wacom_features
*)id
->driver_info
);
1076 wacom_wac
->features
.pktlen
= WACOM_PKGLEN_BBTOUCH3
;
1077 wacom_wac
->features
.device_type
= BTN_TOOL_FINGER
;
1078 wacom_set_phy_from_res(&wacom_wac
->features
);
1079 wacom_wac
->features
.x_max
= wacom_wac
->features
.y_max
= 4096;
1080 wacom_register_input(wacom
);
1084 static int wacom_probe(struct usb_interface
*intf
, const struct usb_device_id
*id
)
1086 struct usb_device
*dev
= interface_to_usbdev(intf
);
1087 struct usb_endpoint_descriptor
*endpoint
;
1088 struct wacom
*wacom
;
1089 struct wacom_wac
*wacom_wac
;
1090 struct wacom_features
*features
;
1093 if (!id
->driver_info
)
1096 wacom
= kzalloc(sizeof(struct wacom
), GFP_KERNEL
);
1100 wacom_wac
= &wacom
->wacom_wac
;
1101 wacom_wac
->features
= *((struct wacom_features
*)id
->driver_info
);
1102 features
= &wacom_wac
->features
;
1103 if (features
->pktlen
> WACOM_PKGLEN_MAX
) {
1108 wacom_wac
->data
= usb_alloc_coherent(dev
, WACOM_PKGLEN_MAX
,
1109 GFP_KERNEL
, &wacom
->data_dma
);
1110 if (!wacom_wac
->data
) {
1115 wacom
->irq
= usb_alloc_urb(0, GFP_KERNEL
);
1121 wacom
->usbdev
= dev
;
1123 mutex_init(&wacom
->lock
);
1124 INIT_WORK(&wacom
->work
, wacom_wireless_work
);
1125 usb_make_path(dev
, wacom
->phys
, sizeof(wacom
->phys
));
1126 strlcat(wacom
->phys
, "/input0", sizeof(wacom
->phys
));
1128 endpoint
= &intf
->cur_altsetting
->endpoint
[0].desc
;
1130 /* Retrieve the physical and logical size for touch devices */
1131 error
= wacom_retrieve_hid_descriptor(intf
, features
);
1136 * Intuos5 has no useful data about its touch interface in its
1137 * HID descriptor. If this is the touch interface (wMaxPacketSize
1138 * of WACOM_PKGLEN_BBTOUCH3), override the table values.
1140 if (features
->type
>= INTUOS5S
&& features
->type
<= INTUOS5L
) {
1141 if (endpoint
->wMaxPacketSize
== WACOM_PKGLEN_BBTOUCH3
) {
1142 features
->device_type
= BTN_TOOL_FINGER
;
1143 features
->pktlen
= WACOM_PKGLEN_BBTOUCH3
;
1146 (features
->x_max
* 100) / features
->x_resolution
;
1148 (features
->y_max
* 100) / features
->y_resolution
;
1150 features
->x_max
= 4096;
1151 features
->y_max
= 4096;
1153 features
->device_type
= BTN_TOOL_PEN
;
1157 wacom_setup_device_quirks(features
);
1159 strlcpy(wacom_wac
->name
, features
->name
, sizeof(wacom_wac
->name
));
1161 if (features
->quirks
& WACOM_QUIRK_MULTI_INPUT
) {
1162 /* Append the device type to the name */
1163 strlcat(wacom_wac
->name
,
1164 features
->device_type
== BTN_TOOL_PEN
?
1166 sizeof(wacom_wac
->name
));
1168 error
= wacom_add_shared_data(wacom_wac
, dev
);
1173 usb_fill_int_urb(wacom
->irq
, dev
,
1174 usb_rcvintpipe(dev
, endpoint
->bEndpointAddress
),
1175 wacom_wac
->data
, features
->pktlen
,
1176 wacom_sys_irq
, wacom
, endpoint
->bInterval
);
1177 wacom
->irq
->transfer_dma
= wacom
->data_dma
;
1178 wacom
->irq
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
1180 error
= wacom_initialize_leds(wacom
);
1184 error
= wacom_initialize_battery(wacom
);
1188 if (!(features
->quirks
& WACOM_QUIRK_NO_INPUT
)) {
1189 error
= wacom_register_input(wacom
);
1194 /* Note that if query fails it is not a hard failure */
1195 wacom_query_tablet_data(intf
, features
);
1197 usb_set_intfdata(intf
, wacom
);
1199 if (features
->quirks
& WACOM_QUIRK_MONITOR
) {
1200 if (usb_submit_urb(wacom
->irq
, GFP_KERNEL
))
1206 fail6
: wacom_destroy_battery(wacom
);
1207 fail5
: wacom_destroy_leds(wacom
);
1208 fail4
: wacom_remove_shared_data(wacom_wac
);
1209 fail3
: usb_free_urb(wacom
->irq
);
1210 fail2
: usb_free_coherent(dev
, WACOM_PKGLEN_MAX
, wacom_wac
->data
, wacom
->data_dma
);
1211 fail1
: kfree(wacom
);
1215 static void wacom_disconnect(struct usb_interface
*intf
)
1217 struct wacom
*wacom
= usb_get_intfdata(intf
);
1219 usb_set_intfdata(intf
, NULL
);
1221 usb_kill_urb(wacom
->irq
);
1222 cancel_work_sync(&wacom
->work
);
1223 if (wacom
->wacom_wac
.input
)
1224 input_unregister_device(wacom
->wacom_wac
.input
);
1225 wacom_destroy_battery(wacom
);
1226 wacom_destroy_leds(wacom
);
1227 usb_free_urb(wacom
->irq
);
1228 usb_free_coherent(interface_to_usbdev(intf
), WACOM_PKGLEN_MAX
,
1229 wacom
->wacom_wac
.data
, wacom
->data_dma
);
1230 wacom_remove_shared_data(&wacom
->wacom_wac
);
1234 static int wacom_suspend(struct usb_interface
*intf
, pm_message_t message
)
1236 struct wacom
*wacom
= usb_get_intfdata(intf
);
1238 mutex_lock(&wacom
->lock
);
1239 usb_kill_urb(wacom
->irq
);
1240 mutex_unlock(&wacom
->lock
);
1245 static int wacom_resume(struct usb_interface
*intf
)
1247 struct wacom
*wacom
= usb_get_intfdata(intf
);
1248 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
1251 mutex_lock(&wacom
->lock
);
1253 /* switch to wacom mode first */
1254 wacom_query_tablet_data(intf
, features
);
1255 wacom_led_control(wacom
);
1257 if ((wacom
->open
|| features
->quirks
& WACOM_QUIRK_MONITOR
)
1258 && usb_submit_urb(wacom
->irq
, GFP_NOIO
) < 0)
1261 mutex_unlock(&wacom
->lock
);
1266 static int wacom_reset_resume(struct usb_interface
*intf
)
1268 return wacom_resume(intf
);
1271 static struct usb_driver wacom_driver
= {
1273 .id_table
= wacom_ids
,
1274 .probe
= wacom_probe
,
1275 .disconnect
= wacom_disconnect
,
1276 .suspend
= wacom_suspend
,
1277 .resume
= wacom_resume
,
1278 .reset_resume
= wacom_reset_resume
,
1279 .supports_autosuspend
= 1,
1282 module_usb_driver(wacom_driver
);