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_COLLECTION 0xa1
32 #define HID_COLLECTION_LOGICAL 0x02
33 #define HID_COLLECTION_END 0xc0
41 struct hid_descriptor
{
42 struct usb_descriptor_header header
;
47 __le16 wDescriptorLength
;
48 } __attribute__ ((packed
));
50 /* defines to get/set USB message */
51 #define USB_REQ_GET_REPORT 0x01
52 #define USB_REQ_SET_REPORT 0x09
54 #define WAC_HID_FEATURE_REPORT 0x03
55 #define WAC_MSG_RETRIES 5
57 #define WAC_CMD_LED_CONTROL 0x20
58 #define WAC_CMD_ICON_START 0x21
59 #define WAC_CMD_ICON_XFER 0x23
60 #define WAC_CMD_RETRIES 10
62 static int wacom_get_report(struct usb_interface
*intf
, u8 type
, u8 id
,
63 void *buf
, size_t size
, unsigned int retries
)
65 struct usb_device
*dev
= interface_to_usbdev(intf
);
69 retval
= usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0),
71 USB_DIR_IN
| USB_TYPE_CLASS
|
74 intf
->altsetting
[0].desc
.bInterfaceNumber
,
76 } while ((retval
== -ETIMEDOUT
|| retval
== -EPIPE
) && --retries
);
81 static int wacom_set_report(struct usb_interface
*intf
, u8 type
, u8 id
,
82 void *buf
, size_t size
, unsigned int retries
)
84 struct usb_device
*dev
= interface_to_usbdev(intf
);
88 retval
= usb_control_msg(dev
, usb_sndctrlpipe(dev
, 0),
90 USB_TYPE_CLASS
| USB_RECIP_INTERFACE
,
92 intf
->altsetting
[0].desc
.bInterfaceNumber
,
94 } while ((retval
== -ETIMEDOUT
|| retval
== -EPIPE
) && --retries
);
99 static void wacom_sys_irq(struct urb
*urb
)
101 struct wacom
*wacom
= urb
->context
;
104 switch (urb
->status
) {
111 /* this urb is terminated, clean up */
112 dbg("%s - urb shutting down with status: %d", __func__
, urb
->status
);
115 dbg("%s - nonzero urb status received: %d", __func__
, urb
->status
);
119 wacom_wac_irq(&wacom
->wacom_wac
, urb
->actual_length
);
122 usb_mark_last_busy(wacom
->usbdev
);
123 retval
= usb_submit_urb(urb
, GFP_ATOMIC
);
125 err ("%s - usb_submit_urb failed with result %d",
129 static int wacom_open(struct input_dev
*dev
)
131 struct wacom
*wacom
= input_get_drvdata(dev
);
134 if (usb_autopm_get_interface(wacom
->intf
) < 0)
137 mutex_lock(&wacom
->lock
);
139 if (usb_submit_urb(wacom
->irq
, GFP_KERNEL
)) {
145 wacom
->intf
->needs_remote_wakeup
= 1;
148 mutex_unlock(&wacom
->lock
);
149 usb_autopm_put_interface(wacom
->intf
);
153 static void wacom_close(struct input_dev
*dev
)
155 struct wacom
*wacom
= input_get_drvdata(dev
);
158 autopm_error
= usb_autopm_get_interface(wacom
->intf
);
160 mutex_lock(&wacom
->lock
);
161 usb_kill_urb(wacom
->irq
);
163 wacom
->intf
->needs_remote_wakeup
= 0;
164 mutex_unlock(&wacom
->lock
);
167 usb_autopm_put_interface(wacom
->intf
);
171 * Static values for max X/Y and resolution of Pen interface is stored in
172 * features. This mean physical size of active area can be computed.
173 * This is useful to do when Pen and Touch have same active area of tablet.
174 * This means for Touch device, we only need to find max X/Y value and we
175 * have enough information to compute resolution of touch.
177 static void wacom_set_phy_from_res(struct wacom_features
*features
)
179 features
->x_phy
= (features
->x_max
* 100) / features
->x_resolution
;
180 features
->y_phy
= (features
->y_max
* 100) / features
->y_resolution
;
183 static int wacom_parse_logical_collection(unsigned char *report
,
184 struct wacom_features
*features
)
188 if (features
->type
== BAMBOO_PT
) {
190 /* Logical collection is only used by 3rd gen Bamboo Touch */
191 features
->pktlen
= WACOM_PKGLEN_BBTOUCH3
;
192 features
->device_type
= BTN_TOOL_FINGER
;
194 wacom_set_phy_from_res(features
);
196 features
->x_max
= features
->y_max
=
197 get_unaligned_le16(&report
[10]);
205 * Interface Descriptor of wacom devices can be incomplete and
206 * inconsistent so wacom_features table is used to store stylus
207 * device's packet lengths, various maximum values, and tablet
208 * resolution based on product ID's.
210 * For devices that contain 2 interfaces, wacom_features table is
211 * inaccurate for the touch interface. Since the Interface Descriptor
212 * for touch interfaces has pretty complete data, this function exists
213 * to query tablet for this missing information instead of hard coding in
214 * an additional table.
216 * A typical Interface Descriptor for a stylus will contain a
217 * boot mouse application collection that is not of interest and this
218 * function will ignore it.
220 * It also contains a digitizer application collection that also is not
221 * of interest since any information it contains would be duplicate
222 * of what is in wacom_features. Usually it defines a report of an array
223 * of bytes that could be used as max length of the stylus packet returned.
224 * If it happens to define a Digitizer-Stylus Physical Collection then
225 * the X and Y logical values contain valid data but it is ignored.
227 * A typical Interface Descriptor for a touch interface will contain a
228 * Digitizer-Finger Physical Collection which will define both logical
229 * X/Y maximum as well as the physical size of tablet. Since touch
230 * interfaces haven't supported pressure or distance, this is enough
231 * information to override invalid values in the wacom_features table.
233 * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical
234 * Collection. Instead they define a Logical Collection with a single
235 * Logical Maximum for both X and Y.
237 * Intuos5 touch interface does not contain useful data. We deal with
238 * this after returning from this function.
240 static int wacom_parse_hid(struct usb_interface
*intf
,
241 struct hid_descriptor
*hid_desc
,
242 struct wacom_features
*features
)
244 struct usb_device
*dev
= interface_to_usbdev(intf
);
246 /* result has to be defined as int for some devices */
248 int i
= 0, usage
= WCM_UNDEFINED
, finger
= 0, pen
= 0;
249 unsigned char *report
;
251 report
= kzalloc(hid_desc
->wDescriptorLength
, GFP_KERNEL
);
255 /* retrive report descriptors */
257 result
= usb_control_msg(dev
, usb_rcvctrlpipe(dev
, 0),
258 USB_REQ_GET_DESCRIPTOR
,
259 USB_RECIP_INTERFACE
| USB_DIR_IN
,
260 HID_DEVICET_REPORT
<< 8,
261 intf
->altsetting
[0].desc
.bInterfaceNumber
, /* interface */
263 hid_desc
->wDescriptorLength
,
265 } while (result
< 0 && limit
++ < WAC_MSG_RETRIES
);
267 /* No need to parse the Descriptor. It isn't an error though */
271 for (i
= 0; i
< hid_desc
->wDescriptorLength
; i
++) {
275 switch (report
[i
+ 1]) {
276 case HID_USAGE_PAGE_DIGITIZER
:
277 usage
= WCM_DIGITIZER
;
281 case HID_USAGE_PAGE_DESKTOP
:
289 switch (report
[i
+ 1]) {
291 if (usage
== WCM_DESKTOP
) {
293 features
->device_type
= BTN_TOOL_FINGER
;
294 if (features
->type
== TABLETPC2FG
) {
295 /* need to reset back */
296 features
->pktlen
= WACOM_PKGLEN_TPC2FG
;
298 if (features
->type
== BAMBOO_PT
) {
299 /* need to reset back */
300 features
->pktlen
= WACOM_PKGLEN_BBTOUCH
;
302 get_unaligned_le16(&report
[i
+ 5]);
304 get_unaligned_le16(&report
[i
+ 8]);
308 get_unaligned_le16(&report
[i
+ 3]);
310 get_unaligned_le16(&report
[i
+ 6]);
311 features
->unit
= report
[i
+ 9];
312 features
->unitExpo
= report
[i
+ 11];
316 /* penabled only accepts exact bytes of data */
317 if (features
->type
== TABLETPC2FG
)
318 features
->pktlen
= WACOM_PKGLEN_GRAPHIRE
;
319 features
->device_type
= BTN_TOOL_PEN
;
321 get_unaligned_le16(&report
[i
+ 3]);
328 if (usage
== WCM_DESKTOP
) {
330 features
->device_type
= BTN_TOOL_FINGER
;
331 if (features
->type
== TABLETPC2FG
) {
332 /* need to reset back */
333 features
->pktlen
= WACOM_PKGLEN_TPC2FG
;
335 get_unaligned_le16(&report
[i
+ 3]);
337 get_unaligned_le16(&report
[i
+ 6]);
339 } else if (features
->type
== BAMBOO_PT
) {
340 /* need to reset back */
341 features
->pktlen
= WACOM_PKGLEN_BBTOUCH
;
343 get_unaligned_le16(&report
[i
+ 3]);
345 get_unaligned_le16(&report
[i
+ 6]);
351 get_unaligned_le16(&report
[i
+ 3]);
355 /* penabled only accepts exact bytes of data */
356 if (features
->type
== TABLETPC2FG
)
357 features
->pktlen
= WACOM_PKGLEN_GRAPHIRE
;
358 features
->device_type
= BTN_TOOL_PEN
;
360 get_unaligned_le16(&report
[i
+ 3]);
366 case HID_USAGE_FINGER
:
372 * Requiring Stylus Usage will ignore boot mouse
373 * X/Y values and some cases of invalid Digitizer X/Y
374 * values commonly reported.
376 case HID_USAGE_STYLUS
:
383 case HID_COLLECTION_END
:
384 /* reset UsagePage and Finger */
391 case HID_COLLECTION_LOGICAL
:
392 i
+= wacom_parse_logical_collection(&report
[i
],
406 static int wacom_query_tablet_data(struct usb_interface
*intf
, struct wacom_features
*features
)
408 unsigned char *rep_data
;
409 int limit
= 0, report_id
= 2;
412 rep_data
= kmalloc(4, GFP_KERNEL
);
416 /* ask to report tablet data if it is MT Tablet PC or
418 if (features
->type
== TABLETPC2FG
) {
425 error
= wacom_set_report(intf
, WAC_HID_FEATURE_REPORT
,
426 report_id
, rep_data
, 4, 1);
428 error
= wacom_get_report(intf
,
429 WAC_HID_FEATURE_REPORT
,
430 report_id
, rep_data
, 4, 1);
431 } while ((error
< 0 || rep_data
[1] != 4) && limit
++ < WAC_MSG_RETRIES
);
432 } else if (features
->type
!= TABLETPC
&&
433 features
->type
!= WIRELESS
&&
434 features
->device_type
== BTN_TOOL_PEN
) {
438 error
= wacom_set_report(intf
, WAC_HID_FEATURE_REPORT
,
439 report_id
, rep_data
, 2, 1);
441 error
= wacom_get_report(intf
,
442 WAC_HID_FEATURE_REPORT
,
443 report_id
, rep_data
, 2, 1);
444 } while ((error
< 0 || rep_data
[1] != 2) && limit
++ < WAC_MSG_RETRIES
);
449 return error
< 0 ? error
: 0;
452 static int wacom_retrieve_hid_descriptor(struct usb_interface
*intf
,
453 struct wacom_features
*features
)
456 struct usb_host_interface
*interface
= intf
->cur_altsetting
;
457 struct hid_descriptor
*hid_desc
;
459 /* default features */
460 features
->device_type
= BTN_TOOL_PEN
;
461 features
->x_fuzz
= 4;
462 features
->y_fuzz
= 4;
463 features
->pressure_fuzz
= 0;
464 features
->distance_fuzz
= 0;
467 * The wireless device HID is basic and layout conflicts with
468 * other tablets (monitor and touch interface can look like pen).
469 * Skip the query for this type and modify defaults based on
472 if (features
->type
== WIRELESS
) {
473 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
== 0) {
474 features
->device_type
= 0;
475 } else if (intf
->cur_altsetting
->desc
.bInterfaceNumber
== 2) {
476 features
->device_type
= BTN_TOOL_DOUBLETAP
;
477 features
->pktlen
= WACOM_PKGLEN_BBTOUCH3
;
481 /* only Tablet PCs and Bamboo P&T need to retrieve the info */
482 if ((features
->type
!= TABLETPC
) && (features
->type
!= TABLETPC2FG
) &&
483 (features
->type
!= BAMBOO_PT
))
486 if (usb_get_extra_descriptor(interface
, HID_DEVICET_HID
, &hid_desc
)) {
487 if (usb_get_extra_descriptor(&interface
->endpoint
[0],
488 HID_DEVICET_REPORT
, &hid_desc
)) {
489 printk("wacom: can not retrieve extra class descriptor\n");
494 error
= wacom_parse_hid(intf
, hid_desc
, features
);
502 struct wacom_usbdev_data
{
503 struct list_head list
;
505 struct usb_device
*dev
;
506 struct wacom_shared shared
;
509 static LIST_HEAD(wacom_udev_list
);
510 static DEFINE_MUTEX(wacom_udev_list_lock
);
512 static struct wacom_usbdev_data
*wacom_get_usbdev_data(struct usb_device
*dev
)
514 struct wacom_usbdev_data
*data
;
516 list_for_each_entry(data
, &wacom_udev_list
, list
) {
517 if (data
->dev
== dev
) {
518 kref_get(&data
->kref
);
526 static int wacom_add_shared_data(struct wacom_wac
*wacom
,
527 struct usb_device
*dev
)
529 struct wacom_usbdev_data
*data
;
532 mutex_lock(&wacom_udev_list_lock
);
534 data
= wacom_get_usbdev_data(dev
);
536 data
= kzalloc(sizeof(struct wacom_usbdev_data
), GFP_KERNEL
);
542 kref_init(&data
->kref
);
544 list_add_tail(&data
->list
, &wacom_udev_list
);
547 wacom
->shared
= &data
->shared
;
550 mutex_unlock(&wacom_udev_list_lock
);
554 static void wacom_release_shared_data(struct kref
*kref
)
556 struct wacom_usbdev_data
*data
=
557 container_of(kref
, struct wacom_usbdev_data
, kref
);
559 mutex_lock(&wacom_udev_list_lock
);
560 list_del(&data
->list
);
561 mutex_unlock(&wacom_udev_list_lock
);
566 static void wacom_remove_shared_data(struct wacom_wac
*wacom
)
568 struct wacom_usbdev_data
*data
;
571 data
= container_of(wacom
->shared
, struct wacom_usbdev_data
, shared
);
572 kref_put(&data
->kref
, wacom_release_shared_data
);
573 wacom
->shared
= NULL
;
577 static int wacom_led_control(struct wacom
*wacom
)
582 buf
= kzalloc(9, GFP_KERNEL
);
586 if (wacom
->wacom_wac
.features
.type
>= INTUOS5S
&&
587 wacom
->wacom_wac
.features
.type
<= INTUOS5L
) {
589 * Touch Ring and crop mark LED luminance may take on
590 * one of four values:
591 * 0 = Low; 1 = Medium; 2 = High; 3 = Off
593 int ring_led
= wacom
->led
.select
[0] & 0x03;
594 int ring_lum
= (((wacom
->led
.llv
& 0x60) >> 5) - 1) & 0x03;
597 buf
[0] = WAC_CMD_LED_CONTROL
;
598 buf
[1] = (crop_lum
<< 4) | (ring_lum
<< 2) | (ring_led
);
601 int led
= wacom
->led
.select
[0] | 0x4;
603 if (wacom
->wacom_wac
.features
.type
== WACOM_21UX2
||
604 wacom
->wacom_wac
.features
.type
== WACOM_24HD
)
605 led
|= (wacom
->led
.select
[1] << 4) | 0x40;
607 buf
[0] = WAC_CMD_LED_CONTROL
;
609 buf
[2] = wacom
->led
.llv
;
610 buf
[3] = wacom
->led
.hlv
;
611 buf
[4] = wacom
->led
.img_lum
;
614 retval
= wacom_set_report(wacom
->intf
, 0x03, WAC_CMD_LED_CONTROL
,
615 buf
, 9, WAC_CMD_RETRIES
);
621 static int wacom_led_putimage(struct wacom
*wacom
, int button_id
, const void *img
)
626 buf
= kzalloc(259, GFP_KERNEL
);
630 /* Send 'start' command */
631 buf
[0] = WAC_CMD_ICON_START
;
633 retval
= wacom_set_report(wacom
->intf
, 0x03, WAC_CMD_ICON_START
,
634 buf
, 2, WAC_CMD_RETRIES
);
638 buf
[0] = WAC_CMD_ICON_XFER
;
639 buf
[1] = button_id
& 0x07;
640 for (i
= 0; i
< 4; i
++) {
642 memcpy(buf
+ 3, img
+ i
* 256, 256);
644 retval
= wacom_set_report(wacom
->intf
, 0x03, WAC_CMD_ICON_XFER
,
645 buf
, 259, WAC_CMD_RETRIES
);
651 buf
[0] = WAC_CMD_ICON_START
;
653 wacom_set_report(wacom
->intf
, 0x03, WAC_CMD_ICON_START
,
654 buf
, 2, WAC_CMD_RETRIES
);
661 static ssize_t
wacom_led_select_store(struct device
*dev
, int set_id
,
662 const char *buf
, size_t count
)
664 struct wacom
*wacom
= dev_get_drvdata(dev
);
668 err
= kstrtouint(buf
, 10, &id
);
672 mutex_lock(&wacom
->lock
);
674 wacom
->led
.select
[set_id
] = id
& 0x3;
675 err
= wacom_led_control(wacom
);
677 mutex_unlock(&wacom
->lock
);
679 return err
< 0 ? err
: count
;
682 #define DEVICE_LED_SELECT_ATTR(SET_ID) \
683 static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
684 struct device_attribute *attr, const char *buf, size_t count) \
686 return wacom_led_select_store(dev, SET_ID, buf, count); \
688 static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
689 struct device_attribute *attr, char *buf) \
691 struct wacom *wacom = dev_get_drvdata(dev); \
692 return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \
694 static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \
695 wacom_led##SET_ID##_select_show, \
696 wacom_led##SET_ID##_select_store)
698 DEVICE_LED_SELECT_ATTR(0);
699 DEVICE_LED_SELECT_ATTR(1);
701 static ssize_t
wacom_luminance_store(struct wacom
*wacom
, u8
*dest
,
702 const char *buf
, size_t count
)
707 err
= kstrtouint(buf
, 10, &value
);
711 mutex_lock(&wacom
->lock
);
713 *dest
= value
& 0x7f;
714 err
= wacom_led_control(wacom
);
716 mutex_unlock(&wacom
->lock
);
718 return err
< 0 ? err
: count
;
721 #define DEVICE_LUMINANCE_ATTR(name, field) \
722 static ssize_t wacom_##name##_luminance_store(struct device *dev, \
723 struct device_attribute *attr, const char *buf, size_t count) \
725 struct wacom *wacom = dev_get_drvdata(dev); \
727 return wacom_luminance_store(wacom, &wacom->led.field, \
730 static DEVICE_ATTR(name##_luminance, S_IWUSR, \
731 NULL, wacom_##name##_luminance_store)
733 DEVICE_LUMINANCE_ATTR(status0
, llv
);
734 DEVICE_LUMINANCE_ATTR(status1
, hlv
);
735 DEVICE_LUMINANCE_ATTR(buttons
, img_lum
);
737 static ssize_t
wacom_button_image_store(struct device
*dev
, int button_id
,
738 const char *buf
, size_t count
)
740 struct wacom
*wacom
= dev_get_drvdata(dev
);
746 mutex_lock(&wacom
->lock
);
748 err
= wacom_led_putimage(wacom
, button_id
, buf
);
750 mutex_unlock(&wacom
->lock
);
752 return err
< 0 ? err
: count
;
755 #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
756 static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
757 struct device_attribute *attr, const char *buf, size_t count) \
759 return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
761 static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \
762 NULL, wacom_btnimg##BUTTON_ID##_store)
764 DEVICE_BTNIMG_ATTR(0);
765 DEVICE_BTNIMG_ATTR(1);
766 DEVICE_BTNIMG_ATTR(2);
767 DEVICE_BTNIMG_ATTR(3);
768 DEVICE_BTNIMG_ATTR(4);
769 DEVICE_BTNIMG_ATTR(5);
770 DEVICE_BTNIMG_ATTR(6);
771 DEVICE_BTNIMG_ATTR(7);
773 static struct attribute
*cintiq_led_attrs
[] = {
774 &dev_attr_status_led0_select
.attr
,
775 &dev_attr_status_led1_select
.attr
,
779 static struct attribute_group cintiq_led_attr_group
= {
781 .attrs
= cintiq_led_attrs
,
784 static struct attribute
*intuos4_led_attrs
[] = {
785 &dev_attr_status0_luminance
.attr
,
786 &dev_attr_status1_luminance
.attr
,
787 &dev_attr_status_led0_select
.attr
,
788 &dev_attr_buttons_luminance
.attr
,
789 &dev_attr_button0_rawimg
.attr
,
790 &dev_attr_button1_rawimg
.attr
,
791 &dev_attr_button2_rawimg
.attr
,
792 &dev_attr_button3_rawimg
.attr
,
793 &dev_attr_button4_rawimg
.attr
,
794 &dev_attr_button5_rawimg
.attr
,
795 &dev_attr_button6_rawimg
.attr
,
796 &dev_attr_button7_rawimg
.attr
,
800 static struct attribute_group intuos4_led_attr_group
= {
802 .attrs
= intuos4_led_attrs
,
805 static struct attribute
*intuos5_led_attrs
[] = {
806 &dev_attr_status0_luminance
.attr
,
807 &dev_attr_status_led0_select
.attr
,
811 static struct attribute_group intuos5_led_attr_group
= {
813 .attrs
= intuos5_led_attrs
,
816 static int wacom_initialize_leds(struct wacom
*wacom
)
820 /* Initialize default values */
821 switch (wacom
->wacom_wac
.features
.type
) {
824 wacom
->led
.select
[0] = 0;
825 wacom
->led
.select
[1] = 0;
828 wacom
->led
.img_lum
= 10;
829 error
= sysfs_create_group(&wacom
->intf
->dev
.kobj
,
830 &intuos4_led_attr_group
);
835 wacom
->led
.select
[0] = 0;
836 wacom
->led
.select
[1] = 0;
839 wacom
->led
.img_lum
= 0;
841 error
= sysfs_create_group(&wacom
->intf
->dev
.kobj
,
842 &cintiq_led_attr_group
);
848 wacom
->led
.select
[0] = 0;
849 wacom
->led
.select
[1] = 0;
852 wacom
->led
.img_lum
= 0;
854 error
= sysfs_create_group(&wacom
->intf
->dev
.kobj
,
855 &intuos5_led_attr_group
);
863 dev_err(&wacom
->intf
->dev
,
864 "cannot create sysfs group err: %d\n", error
);
867 wacom_led_control(wacom
);
872 static void wacom_destroy_leds(struct wacom
*wacom
)
874 switch (wacom
->wacom_wac
.features
.type
) {
877 sysfs_remove_group(&wacom
->intf
->dev
.kobj
,
878 &intuos4_led_attr_group
);
883 sysfs_remove_group(&wacom
->intf
->dev
.kobj
,
884 &cintiq_led_attr_group
);
890 sysfs_remove_group(&wacom
->intf
->dev
.kobj
,
891 &intuos5_led_attr_group
);
896 static enum power_supply_property wacom_battery_props
[] = {
897 POWER_SUPPLY_PROP_CAPACITY
900 static int wacom_battery_get_property(struct power_supply
*psy
,
901 enum power_supply_property psp
,
902 union power_supply_propval
*val
)
904 struct wacom
*wacom
= container_of(psy
, struct wacom
, battery
);
908 case POWER_SUPPLY_PROP_CAPACITY
:
910 wacom
->wacom_wac
.battery_capacity
* 100 / 31;
920 static int wacom_initialize_battery(struct wacom
*wacom
)
924 if (wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_MONITOR
) {
925 wacom
->battery
.properties
= wacom_battery_props
;
926 wacom
->battery
.num_properties
= ARRAY_SIZE(wacom_battery_props
);
927 wacom
->battery
.get_property
= wacom_battery_get_property
;
928 wacom
->battery
.name
= "wacom_battery";
929 wacom
->battery
.type
= POWER_SUPPLY_TYPE_BATTERY
;
930 wacom
->battery
.use_for_apm
= 0;
932 error
= power_supply_register(&wacom
->usbdev
->dev
,
939 static void wacom_destroy_battery(struct wacom
*wacom
)
941 if (wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_MONITOR
)
942 power_supply_unregister(&wacom
->battery
);
945 static int wacom_register_input(struct wacom
*wacom
)
947 struct input_dev
*input_dev
;
948 struct usb_interface
*intf
= wacom
->intf
;
949 struct usb_device
*dev
= interface_to_usbdev(intf
);
950 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
953 input_dev
= input_allocate_device();
957 input_dev
->name
= wacom_wac
->name
;
958 input_dev
->dev
.parent
= &intf
->dev
;
959 input_dev
->open
= wacom_open
;
960 input_dev
->close
= wacom_close
;
961 usb_to_input_id(dev
, &input_dev
->id
);
962 input_set_drvdata(input_dev
, wacom
);
964 wacom_wac
->input
= input_dev
;
965 wacom_setup_input_capabilities(input_dev
, wacom_wac
);
967 error
= input_register_device(input_dev
);
969 input_free_device(input_dev
);
970 wacom_wac
->input
= NULL
;
976 static void wacom_wireless_work(struct work_struct
*work
)
978 struct wacom
*wacom
= container_of(work
, struct wacom
, work
);
979 struct usb_device
*usbdev
= wacom
->usbdev
;
980 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
983 * Regardless if this is a disconnect or a new tablet,
984 * remove any existing input devices.
987 /* Stylus interface */
988 wacom
= usb_get_intfdata(usbdev
->config
->interface
[1]);
989 if (wacom
->wacom_wac
.input
)
990 input_unregister_device(wacom
->wacom_wac
.input
);
991 wacom
->wacom_wac
.input
= 0;
993 /* Touch interface */
994 wacom
= usb_get_intfdata(usbdev
->config
->interface
[2]);
995 if (wacom
->wacom_wac
.input
)
996 input_unregister_device(wacom
->wacom_wac
.input
);
997 wacom
->wacom_wac
.input
= 0;
999 if (wacom_wac
->pid
== 0) {
1000 printk(KERN_INFO
"wacom: wireless tablet disconnected\n");
1002 const struct usb_device_id
*id
= wacom_ids
;
1005 "wacom: wireless tablet connected with PID %x\n",
1008 while (id
->match_flags
) {
1009 if (id
->idVendor
== USB_VENDOR_ID_WACOM
&&
1010 id
->idProduct
== wacom_wac
->pid
)
1015 if (!id
->match_flags
) {
1017 "wacom: ignorning unknown PID.\n");
1021 /* Stylus interface */
1022 wacom
= usb_get_intfdata(usbdev
->config
->interface
[1]);
1023 wacom_wac
= &wacom
->wacom_wac
;
1024 wacom_wac
->features
=
1025 *((struct wacom_features
*)id
->driver_info
);
1026 wacom_wac
->features
.device_type
= BTN_TOOL_PEN
;
1027 wacom_register_input(wacom
);
1029 /* Touch interface */
1030 wacom
= usb_get_intfdata(usbdev
->config
->interface
[2]);
1031 wacom_wac
= &wacom
->wacom_wac
;
1032 wacom_wac
->features
=
1033 *((struct wacom_features
*)id
->driver_info
);
1034 wacom_wac
->features
.pktlen
= WACOM_PKGLEN_BBTOUCH3
;
1035 wacom_wac
->features
.device_type
= BTN_TOOL_FINGER
;
1036 wacom_set_phy_from_res(&wacom_wac
->features
);
1037 wacom_wac
->features
.x_max
= wacom_wac
->features
.y_max
= 4096;
1038 wacom_register_input(wacom
);
1042 static int wacom_probe(struct usb_interface
*intf
, const struct usb_device_id
*id
)
1044 struct usb_device
*dev
= interface_to_usbdev(intf
);
1045 struct usb_endpoint_descriptor
*endpoint
;
1046 struct wacom
*wacom
;
1047 struct wacom_wac
*wacom_wac
;
1048 struct wacom_features
*features
;
1051 if (!id
->driver_info
)
1054 wacom
= kzalloc(sizeof(struct wacom
), GFP_KERNEL
);
1058 wacom_wac
= &wacom
->wacom_wac
;
1059 wacom_wac
->features
= *((struct wacom_features
*)id
->driver_info
);
1060 features
= &wacom_wac
->features
;
1061 if (features
->pktlen
> WACOM_PKGLEN_MAX
) {
1066 wacom_wac
->data
= usb_alloc_coherent(dev
, WACOM_PKGLEN_MAX
,
1067 GFP_KERNEL
, &wacom
->data_dma
);
1068 if (!wacom_wac
->data
) {
1073 wacom
->irq
= usb_alloc_urb(0, GFP_KERNEL
);
1079 wacom
->usbdev
= dev
;
1081 mutex_init(&wacom
->lock
);
1082 INIT_WORK(&wacom
->work
, wacom_wireless_work
);
1083 usb_make_path(dev
, wacom
->phys
, sizeof(wacom
->phys
));
1084 strlcat(wacom
->phys
, "/input0", sizeof(wacom
->phys
));
1086 endpoint
= &intf
->cur_altsetting
->endpoint
[0].desc
;
1088 /* Retrieve the physical and logical size for OEM devices */
1089 error
= wacom_retrieve_hid_descriptor(intf
, features
);
1094 * Intuos5 has no useful data about its touch interface in its
1095 * HID descriptor. If this is the touch interface (wMaxPacketSize
1096 * of WACOM_PKGLEN_BBTOUCH3), override the table values.
1098 if (features
->type
>= INTUOS5S
&& features
->type
<= INTUOS5L
) {
1099 if (endpoint
->wMaxPacketSize
== WACOM_PKGLEN_BBTOUCH3
) {
1100 features
->device_type
= BTN_TOOL_FINGER
;
1101 features
->pktlen
= WACOM_PKGLEN_BBTOUCH3
;
1104 (features
->x_max
* 100) / features
->x_resolution
;
1106 (features
->y_max
* 100) / features
->y_resolution
;
1108 features
->x_max
= 4096;
1109 features
->y_max
= 4096;
1111 features
->device_type
= BTN_TOOL_PEN
;
1115 wacom_setup_device_quirks(features
);
1117 strlcpy(wacom_wac
->name
, features
->name
, sizeof(wacom_wac
->name
));
1119 if (features
->quirks
& WACOM_QUIRK_MULTI_INPUT
) {
1120 /* Append the device type to the name */
1121 strlcat(wacom_wac
->name
,
1122 features
->device_type
== BTN_TOOL_PEN
?
1124 sizeof(wacom_wac
->name
));
1126 error
= wacom_add_shared_data(wacom_wac
, dev
);
1131 usb_fill_int_urb(wacom
->irq
, dev
,
1132 usb_rcvintpipe(dev
, endpoint
->bEndpointAddress
),
1133 wacom_wac
->data
, features
->pktlen
,
1134 wacom_sys_irq
, wacom
, endpoint
->bInterval
);
1135 wacom
->irq
->transfer_dma
= wacom
->data_dma
;
1136 wacom
->irq
->transfer_flags
|= URB_NO_TRANSFER_DMA_MAP
;
1138 error
= wacom_initialize_leds(wacom
);
1142 error
= wacom_initialize_battery(wacom
);
1146 if (!(features
->quirks
& WACOM_QUIRK_NO_INPUT
)) {
1147 error
= wacom_register_input(wacom
);
1152 /* Note that if query fails it is not a hard failure */
1153 wacom_query_tablet_data(intf
, features
);
1155 usb_set_intfdata(intf
, wacom
);
1157 if (features
->quirks
& WACOM_QUIRK_MONITOR
) {
1158 if (usb_submit_urb(wacom
->irq
, GFP_KERNEL
))
1164 fail6
: wacom_destroy_battery(wacom
);
1165 fail5
: wacom_destroy_leds(wacom
);
1166 fail4
: wacom_remove_shared_data(wacom_wac
);
1167 fail3
: usb_free_urb(wacom
->irq
);
1168 fail2
: usb_free_coherent(dev
, WACOM_PKGLEN_MAX
, wacom_wac
->data
, wacom
->data_dma
);
1169 fail1
: kfree(wacom
);
1173 static void wacom_disconnect(struct usb_interface
*intf
)
1175 struct wacom
*wacom
= usb_get_intfdata(intf
);
1177 usb_set_intfdata(intf
, NULL
);
1179 usb_kill_urb(wacom
->irq
);
1180 cancel_work_sync(&wacom
->work
);
1181 if (wacom
->wacom_wac
.input
)
1182 input_unregister_device(wacom
->wacom_wac
.input
);
1183 wacom_destroy_battery(wacom
);
1184 wacom_destroy_leds(wacom
);
1185 usb_free_urb(wacom
->irq
);
1186 usb_free_coherent(interface_to_usbdev(intf
), WACOM_PKGLEN_MAX
,
1187 wacom
->wacom_wac
.data
, wacom
->data_dma
);
1188 wacom_remove_shared_data(&wacom
->wacom_wac
);
1192 static int wacom_suspend(struct usb_interface
*intf
, pm_message_t message
)
1194 struct wacom
*wacom
= usb_get_intfdata(intf
);
1196 mutex_lock(&wacom
->lock
);
1197 usb_kill_urb(wacom
->irq
);
1198 mutex_unlock(&wacom
->lock
);
1203 static int wacom_resume(struct usb_interface
*intf
)
1205 struct wacom
*wacom
= usb_get_intfdata(intf
);
1206 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
1209 mutex_lock(&wacom
->lock
);
1211 /* switch to wacom mode first */
1212 wacom_query_tablet_data(intf
, features
);
1213 wacom_led_control(wacom
);
1215 if ((wacom
->open
|| features
->quirks
& WACOM_QUIRK_MONITOR
)
1216 && usb_submit_urb(wacom
->irq
, GFP_NOIO
) < 0)
1219 mutex_unlock(&wacom
->lock
);
1224 static int wacom_reset_resume(struct usb_interface
*intf
)
1226 return wacom_resume(intf
);
1229 static struct usb_driver wacom_driver
= {
1231 .id_table
= wacom_ids
,
1232 .probe
= wacom_probe
,
1233 .disconnect
= wacom_disconnect
,
1234 .suspend
= wacom_suspend
,
1235 .resume
= wacom_resume
,
1236 .reset_resume
= wacom_reset_resume
,
1237 .supports_autosuspend
= 1,
1240 module_usb_driver(wacom_driver
);