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"
16 #include <linux/hid.h>
18 #define WAC_MSG_RETRIES 5
20 #define WAC_CMD_LED_CONTROL 0x20
21 #define WAC_CMD_ICON_START 0x21
22 #define WAC_CMD_ICON_XFER 0x23
23 #define WAC_CMD_ICON_BT_XFER 0x26
24 #define WAC_CMD_RETRIES 10
26 static int wacom_get_report(struct hid_device
*hdev
, u8 type
, u8 id
,
27 void *buf
, size_t size
, unsigned int retries
)
32 retval
= hid_hw_raw_request(hdev
, id
, buf
, size
, type
,
34 } while ((retval
== -ETIMEDOUT
|| retval
== -EPIPE
) && --retries
);
39 static int wacom_set_report(struct hid_device
*hdev
, u8 type
, u8 id
,
40 void *buf
, size_t size
, unsigned int retries
)
45 retval
= hid_hw_raw_request(hdev
, id
, buf
, size
, type
,
47 } while ((retval
== -ETIMEDOUT
|| retval
== -EPIPE
) && --retries
);
52 static int wacom_raw_event(struct hid_device
*hdev
, struct hid_report
*report
,
53 u8
*raw_data
, int size
)
55 struct wacom
*wacom
= hid_get_drvdata(hdev
);
57 if (size
> WACOM_PKGLEN_MAX
)
60 memcpy(wacom
->wacom_wac
.data
, raw_data
, size
);
62 wacom_wac_irq(&wacom
->wacom_wac
, size
);
67 static int wacom_open(struct input_dev
*dev
)
69 struct wacom
*wacom
= input_get_drvdata(dev
);
72 mutex_lock(&wacom
->lock
);
73 retval
= hid_hw_open(wacom
->hdev
);
74 mutex_unlock(&wacom
->lock
);
79 static void wacom_close(struct input_dev
*dev
)
81 struct wacom
*wacom
= input_get_drvdata(dev
);
83 mutex_lock(&wacom
->lock
);
84 hid_hw_close(wacom
->hdev
);
85 mutex_unlock(&wacom
->lock
);
89 * Calculate the resolution of the X or Y axis using hidinput_calc_abs_res.
91 static int wacom_calc_hid_res(int logical_extents
, int physical_extents
,
92 unsigned unit
, int exponent
)
94 struct hid_field field
= {
95 .logical_maximum
= logical_extents
,
96 .physical_maximum
= physical_extents
,
98 .unit_exponent
= exponent
,
101 return hidinput_calc_abs_res(&field
, ABS_X
);
104 static void wacom_feature_mapping(struct hid_device
*hdev
,
105 struct hid_field
*field
, struct hid_usage
*usage
)
107 struct wacom
*wacom
= hid_get_drvdata(hdev
);
108 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
110 switch (usage
->hid
) {
111 case HID_DG_CONTACTMAX
:
112 /* leave touch_max as is if predefined */
113 if (!features
->touch_max
)
114 features
->touch_max
= field
->value
[0];
120 * Interface Descriptor of wacom devices can be incomplete and
121 * inconsistent so wacom_features table is used to store stylus
122 * device's packet lengths, various maximum values, and tablet
123 * resolution based on product ID's.
125 * For devices that contain 2 interfaces, wacom_features table is
126 * inaccurate for the touch interface. Since the Interface Descriptor
127 * for touch interfaces has pretty complete data, this function exists
128 * to query tablet for this missing information instead of hard coding in
129 * an additional table.
131 * A typical Interface Descriptor for a stylus will contain a
132 * boot mouse application collection that is not of interest and this
133 * function will ignore it.
135 * It also contains a digitizer application collection that also is not
136 * of interest since any information it contains would be duplicate
137 * of what is in wacom_features. Usually it defines a report of an array
138 * of bytes that could be used as max length of the stylus packet returned.
139 * If it happens to define a Digitizer-Stylus Physical Collection then
140 * the X and Y logical values contain valid data but it is ignored.
142 * A typical Interface Descriptor for a touch interface will contain a
143 * Digitizer-Finger Physical Collection which will define both logical
144 * X/Y maximum as well as the physical size of tablet. Since touch
145 * interfaces haven't supported pressure or distance, this is enough
146 * information to override invalid values in the wacom_features table.
148 * Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful
149 * data. We deal with them after returning from this function.
151 static void wacom_usage_mapping(struct hid_device
*hdev
,
152 struct hid_field
*field
, struct hid_usage
*usage
)
154 struct wacom
*wacom
= hid_get_drvdata(hdev
);
155 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
156 bool finger
= (field
->logical
== HID_DG_FINGER
) ||
157 (field
->physical
== HID_DG_FINGER
);
158 bool pen
= (field
->logical
== HID_DG_STYLUS
) ||
159 (field
->physical
== HID_DG_STYLUS
);
162 * Requiring Stylus Usage will ignore boot mouse
163 * X/Y values and some cases of invalid Digitizer X/Y
164 * values commonly reported.
169 if (finger
&& !features
->touch_max
)
170 /* touch device at least supports one touch point */
171 features
->touch_max
= 1;
173 switch (usage
->hid
) {
175 features
->x_max
= field
->logical_maximum
;
177 features
->device_type
= BTN_TOOL_FINGER
;
178 features
->x_phy
= field
->physical_maximum
;
179 if (features
->type
!= BAMBOO_PT
) {
180 features
->unit
= field
->unit
;
181 features
->unitExpo
= field
->unit_exponent
;
184 features
->device_type
= BTN_TOOL_PEN
;
188 features
->y_max
= field
->logical_maximum
;
190 features
->y_phy
= field
->physical_maximum
;
191 if (features
->type
!= BAMBOO_PT
) {
192 features
->unit
= field
->unit
;
193 features
->unitExpo
= field
->unit_exponent
;
197 case HID_DG_TIPPRESSURE
:
199 features
->pressure_max
= field
->logical_maximum
;
204 static void wacom_parse_hid(struct hid_device
*hdev
,
205 struct wacom_features
*features
)
207 struct hid_report_enum
*rep_enum
;
208 struct hid_report
*hreport
;
211 /* check features first */
212 rep_enum
= &hdev
->report_enum
[HID_FEATURE_REPORT
];
213 list_for_each_entry(hreport
, &rep_enum
->report_list
, list
) {
214 for (i
= 0; i
< hreport
->maxfield
; i
++) {
215 /* Ignore if report count is out of bounds. */
216 if (hreport
->field
[i
]->report_count
< 1)
219 for (j
= 0; j
< hreport
->field
[i
]->maxusage
; j
++) {
220 wacom_feature_mapping(hdev
, hreport
->field
[i
],
221 hreport
->field
[i
]->usage
+ j
);
226 /* now check the input usages */
227 rep_enum
= &hdev
->report_enum
[HID_INPUT_REPORT
];
228 list_for_each_entry(hreport
, &rep_enum
->report_list
, list
) {
230 if (!hreport
->maxfield
)
233 for (i
= 0; i
< hreport
->maxfield
; i
++)
234 for (j
= 0; j
< hreport
->field
[i
]->maxusage
; j
++)
235 wacom_usage_mapping(hdev
, hreport
->field
[i
],
236 hreport
->field
[i
]->usage
+ j
);
240 static int wacom_set_device_mode(struct hid_device
*hdev
, int report_id
,
241 int length
, int mode
)
243 unsigned char *rep_data
;
244 int error
= -ENOMEM
, limit
= 0;
246 rep_data
= kzalloc(length
, GFP_KERNEL
);
251 rep_data
[0] = report_id
;
254 error
= wacom_set_report(hdev
, HID_FEATURE_REPORT
,
255 report_id
, rep_data
, length
, 1);
257 error
= wacom_get_report(hdev
, HID_FEATURE_REPORT
,
258 report_id
, rep_data
, length
, 1);
259 } while ((error
< 0 || rep_data
[1] != mode
) && limit
++ < WAC_MSG_RETRIES
);
263 return error
< 0 ? error
: 0;
266 static int wacom_bt_query_tablet_data(struct hid_device
*hdev
, u8 speed
,
267 struct wacom_features
*features
)
269 struct wacom
*wacom
= hid_get_drvdata(hdev
);
273 switch (features
->type
) {
277 ret
= wacom_set_report(hdev
, HID_FEATURE_REPORT
,
278 rep_data
[0], rep_data
, 2, 3);
281 rep_data
[0] = speed
== 0 ? 0x05 : 0x06;
284 ret
= wacom_set_report(hdev
, HID_FEATURE_REPORT
,
285 rep_data
[0], rep_data
, 2, 3);
288 wacom
->wacom_wac
.bt_high_speed
= speed
;
294 * Note that if the raw queries fail, it's not a hard failure
295 * and it is safe to continue
297 hid_warn(hdev
, "failed to poke device, command %d, err %d\n",
302 wacom
->wacom_wac
.bt_features
&= ~0x20;
304 wacom
->wacom_wac
.bt_features
|= 0x20;
307 rep_data
[1] = wacom
->wacom_wac
.bt_features
;
309 ret
= wacom_set_report(hdev
, HID_FEATURE_REPORT
,
310 rep_data
[0], rep_data
, 2, 1);
312 wacom
->wacom_wac
.bt_high_speed
= speed
;
320 * Switch the tablet into its most-capable mode. Wacom tablets are
321 * typically configured to power-up in a mode which sends mouse-like
322 * reports to the OS. To get absolute position, pressure data, etc.
323 * from the tablet, it is necessary to switch the tablet out of this
324 * mode and into one which sends the full range of tablet data.
326 static int wacom_query_tablet_data(struct hid_device
*hdev
,
327 struct wacom_features
*features
)
329 if (hdev
->bus
== BUS_BLUETOOTH
)
330 return wacom_bt_query_tablet_data(hdev
, 1, features
);
332 if (features
->device_type
== BTN_TOOL_FINGER
) {
333 if (features
->type
> TABLETPC
) {
334 /* MT Tablet PC touch */
335 return wacom_set_device_mode(hdev
, 3, 4, 4);
337 else if (features
->type
== WACOM_24HDT
|| features
->type
== CINTIQ_HYBRID
) {
338 return wacom_set_device_mode(hdev
, 18, 3, 2);
340 } else if (features
->device_type
== BTN_TOOL_PEN
) {
341 if (features
->type
<= BAMBOO_PT
&& features
->type
!= WIRELESS
) {
342 return wacom_set_device_mode(hdev
, 2, 2, 2);
349 static void wacom_retrieve_hid_descriptor(struct hid_device
*hdev
,
350 struct wacom_features
*features
)
352 struct wacom
*wacom
= hid_get_drvdata(hdev
);
353 struct usb_interface
*intf
= wacom
->intf
;
355 /* default features */
356 features
->device_type
= BTN_TOOL_PEN
;
357 features
->x_fuzz
= 4;
358 features
->y_fuzz
= 4;
359 features
->pressure_fuzz
= 0;
360 features
->distance_fuzz
= 0;
363 * The wireless device HID is basic and layout conflicts with
364 * other tablets (monitor and touch interface can look like pen).
365 * Skip the query for this type and modify defaults based on
368 if (features
->type
== WIRELESS
) {
369 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
== 0) {
370 features
->device_type
= 0;
371 } else if (intf
->cur_altsetting
->desc
.bInterfaceNumber
== 2) {
372 features
->device_type
= BTN_TOOL_FINGER
;
373 features
->pktlen
= WACOM_PKGLEN_BBTOUCH3
;
377 /* only devices that support touch need to retrieve the info */
378 if (features
->type
< BAMBOO_PT
)
381 wacom_parse_hid(hdev
, features
);
384 struct wacom_hdev_data
{
385 struct list_head list
;
387 struct hid_device
*dev
;
388 struct wacom_shared shared
;
391 static LIST_HEAD(wacom_udev_list
);
392 static DEFINE_MUTEX(wacom_udev_list_lock
);
394 static bool wacom_are_sibling(struct hid_device
*hdev
,
395 struct hid_device
*sibling
)
397 struct wacom
*wacom
= hid_get_drvdata(hdev
);
398 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
399 int vid
= features
->oVid
;
400 int pid
= features
->oPid
;
403 if (vid
== 0 && pid
== 0) {
408 if (vid
!= sibling
->vendor
|| pid
!= sibling
->product
)
411 /* Compare the physical path. */
412 n1
= strrchr(hdev
->phys
, '.') - hdev
->phys
;
413 n2
= strrchr(sibling
->phys
, '.') - sibling
->phys
;
414 if (n1
!= n2
|| n1
<= 0 || n2
<= 0)
417 return !strncmp(hdev
->phys
, sibling
->phys
, n1
);
420 static struct wacom_hdev_data
*wacom_get_hdev_data(struct hid_device
*hdev
)
422 struct wacom_hdev_data
*data
;
424 list_for_each_entry(data
, &wacom_udev_list
, list
) {
425 if (wacom_are_sibling(hdev
, data
->dev
)) {
426 kref_get(&data
->kref
);
434 static int wacom_add_shared_data(struct hid_device
*hdev
)
436 struct wacom
*wacom
= hid_get_drvdata(hdev
);
437 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
438 struct wacom_hdev_data
*data
;
441 mutex_lock(&wacom_udev_list_lock
);
443 data
= wacom_get_hdev_data(hdev
);
445 data
= kzalloc(sizeof(struct wacom_hdev_data
), GFP_KERNEL
);
451 kref_init(&data
->kref
);
453 list_add_tail(&data
->list
, &wacom_udev_list
);
456 wacom_wac
->shared
= &data
->shared
;
459 mutex_unlock(&wacom_udev_list_lock
);
463 static void wacom_release_shared_data(struct kref
*kref
)
465 struct wacom_hdev_data
*data
=
466 container_of(kref
, struct wacom_hdev_data
, kref
);
468 mutex_lock(&wacom_udev_list_lock
);
469 list_del(&data
->list
);
470 mutex_unlock(&wacom_udev_list_lock
);
475 static void wacom_remove_shared_data(struct wacom_wac
*wacom
)
477 struct wacom_hdev_data
*data
;
480 data
= container_of(wacom
->shared
, struct wacom_hdev_data
, shared
);
481 kref_put(&data
->kref
, wacom_release_shared_data
);
482 wacom
->shared
= NULL
;
486 static int wacom_led_control(struct wacom
*wacom
)
491 buf
= kzalloc(9, GFP_KERNEL
);
495 if (wacom
->wacom_wac
.features
.type
>= INTUOS5S
&&
496 wacom
->wacom_wac
.features
.type
<= INTUOSPL
) {
498 * Touch Ring and crop mark LED luminance may take on
499 * one of four values:
500 * 0 = Low; 1 = Medium; 2 = High; 3 = Off
502 int ring_led
= wacom
->led
.select
[0] & 0x03;
503 int ring_lum
= (((wacom
->led
.llv
& 0x60) >> 5) - 1) & 0x03;
506 buf
[0] = WAC_CMD_LED_CONTROL
;
507 buf
[1] = (crop_lum
<< 4) | (ring_lum
<< 2) | (ring_led
);
510 int led
= wacom
->led
.select
[0] | 0x4;
512 if (wacom
->wacom_wac
.features
.type
== WACOM_21UX2
||
513 wacom
->wacom_wac
.features
.type
== WACOM_24HD
)
514 led
|= (wacom
->led
.select
[1] << 4) | 0x40;
516 buf
[0] = WAC_CMD_LED_CONTROL
;
518 buf
[2] = wacom
->led
.llv
;
519 buf
[3] = wacom
->led
.hlv
;
520 buf
[4] = wacom
->led
.img_lum
;
523 retval
= wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
,
524 WAC_CMD_LED_CONTROL
, buf
, 9, WAC_CMD_RETRIES
);
530 static int wacom_led_putimage(struct wacom
*wacom
, int button_id
, u8 xfer_id
,
531 const unsigned len
, const void *img
)
535 const unsigned chunk_len
= len
/ 4; /* 4 chunks are needed to be sent */
537 buf
= kzalloc(chunk_len
+ 3 , GFP_KERNEL
);
541 /* Send 'start' command */
542 buf
[0] = WAC_CMD_ICON_START
;
544 retval
= wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
,
545 WAC_CMD_ICON_START
, buf
, 2, WAC_CMD_RETRIES
);
550 buf
[1] = button_id
& 0x07;
551 for (i
= 0; i
< 4; i
++) {
553 memcpy(buf
+ 3, img
+ i
* chunk_len
, chunk_len
);
555 retval
= wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
,
556 xfer_id
, buf
, chunk_len
+ 3,
563 buf
[0] = WAC_CMD_ICON_START
;
565 wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
, WAC_CMD_ICON_START
,
566 buf
, 2, WAC_CMD_RETRIES
);
573 static ssize_t
wacom_led_select_store(struct device
*dev
, int set_id
,
574 const char *buf
, size_t count
)
576 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
577 struct wacom
*wacom
= hid_get_drvdata(hdev
);
581 err
= kstrtouint(buf
, 10, &id
);
585 mutex_lock(&wacom
->lock
);
587 wacom
->led
.select
[set_id
] = id
& 0x3;
588 err
= wacom_led_control(wacom
);
590 mutex_unlock(&wacom
->lock
);
592 return err
< 0 ? err
: count
;
595 #define DEVICE_LED_SELECT_ATTR(SET_ID) \
596 static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
597 struct device_attribute *attr, const char *buf, size_t count) \
599 return wacom_led_select_store(dev, SET_ID, buf, count); \
601 static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
602 struct device_attribute *attr, char *buf) \
604 struct hid_device *hdev = container_of(dev, struct hid_device, dev);\
605 struct wacom *wacom = hid_get_drvdata(hdev); \
606 return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \
608 static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \
609 wacom_led##SET_ID##_select_show, \
610 wacom_led##SET_ID##_select_store)
612 DEVICE_LED_SELECT_ATTR(0);
613 DEVICE_LED_SELECT_ATTR(1);
615 static ssize_t
wacom_luminance_store(struct wacom
*wacom
, u8
*dest
,
616 const char *buf
, size_t count
)
621 err
= kstrtouint(buf
, 10, &value
);
625 mutex_lock(&wacom
->lock
);
627 *dest
= value
& 0x7f;
628 err
= wacom_led_control(wacom
);
630 mutex_unlock(&wacom
->lock
);
632 return err
< 0 ? err
: count
;
635 #define DEVICE_LUMINANCE_ATTR(name, field) \
636 static ssize_t wacom_##name##_luminance_store(struct device *dev, \
637 struct device_attribute *attr, const char *buf, size_t count) \
639 struct hid_device *hdev = container_of(dev, struct hid_device, dev);\
640 struct wacom *wacom = hid_get_drvdata(hdev); \
642 return wacom_luminance_store(wacom, &wacom->led.field, \
645 static DEVICE_ATTR(name##_luminance, S_IWUSR, \
646 NULL, wacom_##name##_luminance_store)
648 DEVICE_LUMINANCE_ATTR(status0
, llv
);
649 DEVICE_LUMINANCE_ATTR(status1
, hlv
);
650 DEVICE_LUMINANCE_ATTR(buttons
, img_lum
);
652 static ssize_t
wacom_button_image_store(struct device
*dev
, int button_id
,
653 const char *buf
, size_t count
)
655 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
656 struct wacom
*wacom
= hid_get_drvdata(hdev
);
661 if (hdev
->bus
== BUS_BLUETOOTH
) {
663 xfer_id
= WAC_CMD_ICON_BT_XFER
;
666 xfer_id
= WAC_CMD_ICON_XFER
;
672 mutex_lock(&wacom
->lock
);
674 err
= wacom_led_putimage(wacom
, button_id
, xfer_id
, len
, buf
);
676 mutex_unlock(&wacom
->lock
);
678 return err
< 0 ? err
: count
;
681 #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
682 static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
683 struct device_attribute *attr, const char *buf, size_t count) \
685 return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
687 static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \
688 NULL, wacom_btnimg##BUTTON_ID##_store)
690 DEVICE_BTNIMG_ATTR(0);
691 DEVICE_BTNIMG_ATTR(1);
692 DEVICE_BTNIMG_ATTR(2);
693 DEVICE_BTNIMG_ATTR(3);
694 DEVICE_BTNIMG_ATTR(4);
695 DEVICE_BTNIMG_ATTR(5);
696 DEVICE_BTNIMG_ATTR(6);
697 DEVICE_BTNIMG_ATTR(7);
699 static struct attribute
*cintiq_led_attrs
[] = {
700 &dev_attr_status_led0_select
.attr
,
701 &dev_attr_status_led1_select
.attr
,
705 static struct attribute_group cintiq_led_attr_group
= {
707 .attrs
= cintiq_led_attrs
,
710 static struct attribute
*intuos4_led_attrs
[] = {
711 &dev_attr_status0_luminance
.attr
,
712 &dev_attr_status1_luminance
.attr
,
713 &dev_attr_status_led0_select
.attr
,
714 &dev_attr_buttons_luminance
.attr
,
715 &dev_attr_button0_rawimg
.attr
,
716 &dev_attr_button1_rawimg
.attr
,
717 &dev_attr_button2_rawimg
.attr
,
718 &dev_attr_button3_rawimg
.attr
,
719 &dev_attr_button4_rawimg
.attr
,
720 &dev_attr_button5_rawimg
.attr
,
721 &dev_attr_button6_rawimg
.attr
,
722 &dev_attr_button7_rawimg
.attr
,
726 static struct attribute_group intuos4_led_attr_group
= {
728 .attrs
= intuos4_led_attrs
,
731 static struct attribute
*intuos5_led_attrs
[] = {
732 &dev_attr_status0_luminance
.attr
,
733 &dev_attr_status_led0_select
.attr
,
737 static struct attribute_group intuos5_led_attr_group
= {
739 .attrs
= intuos5_led_attrs
,
742 static int wacom_initialize_leds(struct wacom
*wacom
)
746 /* Initialize default values */
747 switch (wacom
->wacom_wac
.features
.type
) {
752 wacom
->led
.select
[0] = 0;
753 wacom
->led
.select
[1] = 0;
756 wacom
->led
.img_lum
= 10;
757 error
= sysfs_create_group(&wacom
->hdev
->dev
.kobj
,
758 &intuos4_led_attr_group
);
763 wacom
->led
.select
[0] = 0;
764 wacom
->led
.select
[1] = 0;
767 wacom
->led
.img_lum
= 0;
769 error
= sysfs_create_group(&wacom
->hdev
->dev
.kobj
,
770 &cintiq_led_attr_group
);
779 if (wacom
->wacom_wac
.features
.device_type
== BTN_TOOL_PEN
) {
780 wacom
->led
.select
[0] = 0;
781 wacom
->led
.select
[1] = 0;
784 wacom
->led
.img_lum
= 0;
786 error
= sysfs_create_group(&wacom
->hdev
->dev
.kobj
,
787 &intuos5_led_attr_group
);
798 "cannot create sysfs group err: %d\n", error
);
801 wacom_led_control(wacom
);
802 wacom
->led_initialized
= true;
807 static void wacom_destroy_leds(struct wacom
*wacom
)
809 if (!wacom
->led_initialized
)
812 wacom
->led_initialized
= false;
814 switch (wacom
->wacom_wac
.features
.type
) {
819 sysfs_remove_group(&wacom
->hdev
->dev
.kobj
,
820 &intuos4_led_attr_group
);
825 sysfs_remove_group(&wacom
->hdev
->dev
.kobj
,
826 &cintiq_led_attr_group
);
835 if (wacom
->wacom_wac
.features
.device_type
== BTN_TOOL_PEN
)
836 sysfs_remove_group(&wacom
->hdev
->dev
.kobj
,
837 &intuos5_led_attr_group
);
842 static enum power_supply_property wacom_battery_props
[] = {
843 POWER_SUPPLY_PROP_STATUS
,
844 POWER_SUPPLY_PROP_SCOPE
,
845 POWER_SUPPLY_PROP_CAPACITY
848 static enum power_supply_property wacom_ac_props
[] = {
849 POWER_SUPPLY_PROP_PRESENT
,
850 POWER_SUPPLY_PROP_ONLINE
,
851 POWER_SUPPLY_PROP_SCOPE
,
854 static int wacom_battery_get_property(struct power_supply
*psy
,
855 enum power_supply_property psp
,
856 union power_supply_propval
*val
)
858 struct wacom
*wacom
= container_of(psy
, struct wacom
, battery
);
862 case POWER_SUPPLY_PROP_SCOPE
:
863 val
->intval
= POWER_SUPPLY_SCOPE_DEVICE
;
865 case POWER_SUPPLY_PROP_CAPACITY
:
867 wacom
->wacom_wac
.battery_capacity
;
869 case POWER_SUPPLY_PROP_STATUS
:
870 if (wacom
->wacom_wac
.bat_charging
)
871 val
->intval
= POWER_SUPPLY_STATUS_CHARGING
;
872 else if (wacom
->wacom_wac
.battery_capacity
== 100 &&
873 wacom
->wacom_wac
.ps_connected
)
874 val
->intval
= POWER_SUPPLY_STATUS_FULL
;
876 val
->intval
= POWER_SUPPLY_STATUS_DISCHARGING
;
886 static int wacom_ac_get_property(struct power_supply
*psy
,
887 enum power_supply_property psp
,
888 union power_supply_propval
*val
)
890 struct wacom
*wacom
= container_of(psy
, struct wacom
, ac
);
894 case POWER_SUPPLY_PROP_PRESENT
:
896 case POWER_SUPPLY_PROP_ONLINE
:
897 val
->intval
= wacom
->wacom_wac
.ps_connected
;
899 case POWER_SUPPLY_PROP_SCOPE
:
900 val
->intval
= POWER_SUPPLY_SCOPE_DEVICE
;
909 static int wacom_initialize_battery(struct wacom
*wacom
)
911 static atomic_t battery_no
= ATOMIC_INIT(0);
915 if (wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_BATTERY
) {
916 n
= atomic_inc_return(&battery_no
) - 1;
918 wacom
->battery
.properties
= wacom_battery_props
;
919 wacom
->battery
.num_properties
= ARRAY_SIZE(wacom_battery_props
);
920 wacom
->battery
.get_property
= wacom_battery_get_property
;
921 sprintf(wacom
->wacom_wac
.bat_name
, "wacom_battery_%ld", n
);
922 wacom
->battery
.name
= wacom
->wacom_wac
.bat_name
;
923 wacom
->battery
.type
= POWER_SUPPLY_TYPE_BATTERY
;
924 wacom
->battery
.use_for_apm
= 0;
926 wacom
->ac
.properties
= wacom_ac_props
;
927 wacom
->ac
.num_properties
= ARRAY_SIZE(wacom_ac_props
);
928 wacom
->ac
.get_property
= wacom_ac_get_property
;
929 sprintf(wacom
->wacom_wac
.ac_name
, "wacom_ac_%ld", n
);
930 wacom
->ac
.name
= wacom
->wacom_wac
.ac_name
;
931 wacom
->ac
.type
= POWER_SUPPLY_TYPE_MAINS
;
932 wacom
->ac
.use_for_apm
= 0;
934 error
= power_supply_register(&wacom
->hdev
->dev
,
939 power_supply_powers(&wacom
->battery
, &wacom
->hdev
->dev
);
941 error
= power_supply_register(&wacom
->hdev
->dev
, &wacom
->ac
);
943 power_supply_unregister(&wacom
->battery
);
947 power_supply_powers(&wacom
->ac
, &wacom
->hdev
->dev
);
953 static void wacom_destroy_battery(struct wacom
*wacom
)
955 if ((wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_BATTERY
) &&
956 wacom
->battery
.dev
) {
957 power_supply_unregister(&wacom
->battery
);
958 wacom
->battery
.dev
= NULL
;
959 power_supply_unregister(&wacom
->ac
);
960 wacom
->ac
.dev
= NULL
;
964 static ssize_t
wacom_show_speed(struct device
*dev
,
965 struct device_attribute
968 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
969 struct wacom
*wacom
= hid_get_drvdata(hdev
);
971 return snprintf(buf
, PAGE_SIZE
, "%i\n", wacom
->wacom_wac
.bt_high_speed
);
974 static ssize_t
wacom_store_speed(struct device
*dev
,
975 struct device_attribute
*attr
,
976 const char *buf
, size_t count
)
978 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
979 struct wacom
*wacom
= hid_get_drvdata(hdev
);
982 if (kstrtou8(buf
, 0, &new_speed
))
985 if (new_speed
!= 0 && new_speed
!= 1)
988 wacom_bt_query_tablet_data(hdev
, new_speed
, &wacom
->wacom_wac
.features
);
993 static DEVICE_ATTR(speed
, S_IRUGO
| S_IWUSR
| S_IWGRP
,
994 wacom_show_speed
, wacom_store_speed
);
996 static struct input_dev
*wacom_allocate_input(struct wacom
*wacom
)
998 struct input_dev
*input_dev
;
999 struct hid_device
*hdev
= wacom
->hdev
;
1000 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
1002 input_dev
= input_allocate_device();
1006 input_dev
->name
= wacom_wac
->name
;
1007 input_dev
->phys
= hdev
->phys
;
1008 input_dev
->dev
.parent
= &hdev
->dev
;
1009 input_dev
->open
= wacom_open
;
1010 input_dev
->close
= wacom_close
;
1011 input_dev
->uniq
= hdev
->uniq
;
1012 input_dev
->id
.bustype
= hdev
->bus
;
1013 input_dev
->id
.vendor
= hdev
->vendor
;
1014 input_dev
->id
.product
= hdev
->product
;
1015 input_dev
->id
.version
= hdev
->version
;
1016 input_set_drvdata(input_dev
, wacom
);
1021 static void wacom_unregister_inputs(struct wacom
*wacom
)
1023 if (wacom
->wacom_wac
.input
)
1024 input_unregister_device(wacom
->wacom_wac
.input
);
1025 if (wacom
->wacom_wac
.pad_input
)
1026 input_unregister_device(wacom
->wacom_wac
.pad_input
);
1027 wacom
->wacom_wac
.input
= NULL
;
1028 wacom
->wacom_wac
.pad_input
= NULL
;
1031 static int wacom_register_inputs(struct wacom
*wacom
)
1033 struct input_dev
*input_dev
, *pad_input_dev
;
1034 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
1037 input_dev
= wacom_allocate_input(wacom
);
1038 pad_input_dev
= wacom_allocate_input(wacom
);
1039 if (!input_dev
|| !pad_input_dev
) {
1044 wacom_wac
->input
= input_dev
;
1045 wacom_wac
->pad_input
= pad_input_dev
;
1046 wacom_wac
->pad_input
->name
= wacom_wac
->pad_name
;
1048 error
= wacom_setup_input_capabilities(input_dev
, wacom_wac
);
1052 error
= input_register_device(input_dev
);
1056 error
= wacom_setup_pad_input_capabilities(pad_input_dev
, wacom_wac
);
1058 /* no pad in use on this interface */
1059 input_free_device(pad_input_dev
);
1060 wacom_wac
->pad_input
= NULL
;
1061 pad_input_dev
= NULL
;
1063 error
= input_register_device(pad_input_dev
);
1071 input_unregister_device(input_dev
);
1074 wacom_wac
->input
= NULL
;
1075 wacom_wac
->pad_input
= NULL
;
1078 input_free_device(input_dev
);
1080 input_free_device(pad_input_dev
);
1084 static void wacom_wireless_work(struct work_struct
*work
)
1086 struct wacom
*wacom
= container_of(work
, struct wacom
, work
);
1087 struct usb_device
*usbdev
= wacom
->usbdev
;
1088 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
1089 struct hid_device
*hdev1
, *hdev2
;
1090 struct wacom
*wacom1
, *wacom2
;
1091 struct wacom_wac
*wacom_wac1
, *wacom_wac2
;
1095 * Regardless if this is a disconnect or a new tablet,
1096 * remove any existing input and battery devices.
1099 wacom_destroy_battery(wacom
);
1101 /* Stylus interface */
1102 hdev1
= usb_get_intfdata(usbdev
->config
->interface
[1]);
1103 wacom1
= hid_get_drvdata(hdev1
);
1104 wacom_wac1
= &(wacom1
->wacom_wac
);
1105 wacom_unregister_inputs(wacom1
);
1107 /* Touch interface */
1108 hdev2
= usb_get_intfdata(usbdev
->config
->interface
[2]);
1109 wacom2
= hid_get_drvdata(hdev2
);
1110 wacom_wac2
= &(wacom2
->wacom_wac
);
1111 wacom_unregister_inputs(wacom2
);
1113 if (wacom_wac
->pid
== 0) {
1114 hid_info(wacom
->hdev
, "wireless tablet disconnected\n");
1115 wacom_wac1
->shared
->type
= 0;
1117 const struct hid_device_id
*id
= wacom_ids
;
1119 hid_info(wacom
->hdev
, "wireless tablet connected with PID %x\n",
1123 if (id
->vendor
== USB_VENDOR_ID_WACOM
&&
1124 id
->product
== wacom_wac
->pid
)
1130 hid_info(wacom
->hdev
, "ignoring unknown PID.\n");
1134 /* Stylus interface */
1135 wacom_wac1
->features
=
1136 *((struct wacom_features
*)id
->driver_data
);
1137 wacom_wac1
->features
.device_type
= BTN_TOOL_PEN
;
1138 snprintf(wacom_wac1
->name
, WACOM_NAME_MAX
, "%s (WL) Pen",
1139 wacom_wac1
->features
.name
);
1140 snprintf(wacom_wac1
->pad_name
, WACOM_NAME_MAX
, "%s (WL) Pad",
1141 wacom_wac1
->features
.name
);
1142 wacom_wac1
->shared
->touch_max
= wacom_wac1
->features
.touch_max
;
1143 wacom_wac1
->shared
->type
= wacom_wac1
->features
.type
;
1144 error
= wacom_register_inputs(wacom1
);
1148 /* Touch interface */
1149 if (wacom_wac1
->features
.touch_max
||
1150 wacom_wac1
->features
.type
== INTUOSHT
) {
1151 wacom_wac2
->features
=
1152 *((struct wacom_features
*)id
->driver_data
);
1153 wacom_wac2
->features
.pktlen
= WACOM_PKGLEN_BBTOUCH3
;
1154 wacom_wac2
->features
.device_type
= BTN_TOOL_FINGER
;
1155 wacom_wac2
->features
.x_max
= wacom_wac2
->features
.y_max
= 4096;
1156 if (wacom_wac2
->features
.touch_max
)
1157 snprintf(wacom_wac2
->name
, WACOM_NAME_MAX
,
1158 "%s (WL) Finger",wacom_wac2
->features
.name
);
1160 snprintf(wacom_wac2
->name
, WACOM_NAME_MAX
,
1161 "%s (WL) Pad",wacom_wac2
->features
.name
);
1162 snprintf(wacom_wac2
->pad_name
, WACOM_NAME_MAX
,
1163 "%s (WL) Pad", wacom_wac2
->features
.name
);
1164 error
= wacom_register_inputs(wacom2
);
1168 if (wacom_wac1
->features
.type
== INTUOSHT
&&
1169 wacom_wac1
->features
.touch_max
)
1170 wacom_wac
->shared
->touch_input
= wacom_wac2
->input
;
1173 error
= wacom_initialize_battery(wacom
);
1181 wacom_unregister_inputs(wacom1
);
1182 wacom_unregister_inputs(wacom2
);
1187 * Not all devices report physical dimensions from HID.
1188 * Compute the default from hardcoded logical dimension
1189 * and resolution before driver overwrites them.
1191 static void wacom_set_default_phy(struct wacom_features
*features
)
1193 if (features
->x_resolution
) {
1194 features
->x_phy
= (features
->x_max
* 100) /
1195 features
->x_resolution
;
1196 features
->y_phy
= (features
->y_max
* 100) /
1197 features
->y_resolution
;
1201 static void wacom_calculate_res(struct wacom_features
*features
)
1203 features
->x_resolution
= wacom_calc_hid_res(features
->x_max
,
1206 features
->unitExpo
);
1207 features
->y_resolution
= wacom_calc_hid_res(features
->y_max
,
1210 features
->unitExpo
);
1213 static int wacom_hid_report_len(struct hid_report
*report
)
1215 /* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */
1216 return ((report
->size
- 1) >> 3) + 1 + (report
->id
> 0);
1219 static size_t wacom_compute_pktlen(struct hid_device
*hdev
)
1221 struct hid_report_enum
*report_enum
;
1222 struct hid_report
*report
;
1225 report_enum
= hdev
->report_enum
+ HID_INPUT_REPORT
;
1227 list_for_each_entry(report
, &report_enum
->report_list
, list
) {
1228 size_t report_size
= wacom_hid_report_len(report
);
1229 if (report_size
> size
)
1236 static int wacom_probe(struct hid_device
*hdev
,
1237 const struct hid_device_id
*id
)
1239 struct usb_interface
*intf
= to_usb_interface(hdev
->dev
.parent
);
1240 struct usb_device
*dev
= interface_to_usbdev(intf
);
1241 struct wacom
*wacom
;
1242 struct wacom_wac
*wacom_wac
;
1243 struct wacom_features
*features
;
1246 if (!id
->driver_data
)
1249 wacom
= kzalloc(sizeof(struct wacom
), GFP_KERNEL
);
1253 hid_set_drvdata(hdev
, wacom
);
1256 /* ask for the report descriptor to be loaded by HID */
1257 error
= hid_parse(hdev
);
1259 hid_err(hdev
, "parse failed\n");
1263 wacom_wac
= &wacom
->wacom_wac
;
1264 wacom_wac
->features
= *((struct wacom_features
*)id
->driver_data
);
1265 features
= &wacom_wac
->features
;
1266 features
->pktlen
= wacom_compute_pktlen(hdev
);
1267 if (features
->pktlen
> WACOM_PKGLEN_MAX
) {
1272 if (features
->check_for_hid_type
&& features
->hid_type
!= hdev
->type
) {
1277 wacom
->usbdev
= dev
;
1279 mutex_init(&wacom
->lock
);
1280 INIT_WORK(&wacom
->work
, wacom_wireless_work
);
1282 /* set the default size in case we do not get them from hid */
1283 wacom_set_default_phy(features
);
1285 /* Retrieve the physical and logical size for touch devices */
1286 wacom_retrieve_hid_descriptor(hdev
, features
);
1289 * Intuos5 has no useful data about its touch interface in its
1290 * HID descriptor. If this is the touch interface (PacketSize
1291 * of WACOM_PKGLEN_BBTOUCH3), override the table values.
1293 if (features
->type
>= INTUOS5S
&& features
->type
<= INTUOSHT
) {
1294 if (features
->pktlen
== WACOM_PKGLEN_BBTOUCH3
) {
1295 features
->device_type
= BTN_TOOL_FINGER
;
1297 features
->x_max
= 4096;
1298 features
->y_max
= 4096;
1300 features
->device_type
= BTN_TOOL_PEN
;
1305 * Same thing for Bamboo 3rd gen.
1307 if ((features
->type
== BAMBOO_PT
) &&
1308 (features
->pktlen
== WACOM_PKGLEN_BBTOUCH3
) &&
1309 (features
->device_type
== BTN_TOOL_PEN
)) {
1310 features
->device_type
= BTN_TOOL_FINGER
;
1312 features
->x_max
= 4096;
1313 features
->y_max
= 4096;
1316 if (hdev
->bus
== BUS_BLUETOOTH
)
1317 features
->quirks
|= WACOM_QUIRK_BATTERY
;
1319 wacom_setup_device_quirks(features
);
1321 /* set unit to "100th of a mm" for devices not reported by HID */
1322 if (!features
->unit
) {
1323 features
->unit
= 0x11;
1324 features
->unitExpo
= -3;
1326 wacom_calculate_res(features
);
1328 strlcpy(wacom_wac
->name
, features
->name
, sizeof(wacom_wac
->name
));
1329 snprintf(wacom_wac
->pad_name
, sizeof(wacom_wac
->pad_name
),
1330 "%s Pad", features
->name
);
1332 if (features
->quirks
& WACOM_QUIRK_MULTI_INPUT
) {
1333 /* Append the device type to the name */
1334 if (features
->device_type
!= BTN_TOOL_FINGER
)
1335 strlcat(wacom_wac
->name
, " Pen", WACOM_NAME_MAX
);
1336 else if (features
->touch_max
)
1337 strlcat(wacom_wac
->name
, " Finger", WACOM_NAME_MAX
);
1339 strlcat(wacom_wac
->name
, " Pad", WACOM_NAME_MAX
);
1341 error
= wacom_add_shared_data(hdev
);
1346 error
= wacom_initialize_leds(wacom
);
1350 if (!(features
->quirks
& WACOM_QUIRK_MONITOR
) &&
1351 (features
->quirks
& WACOM_QUIRK_BATTERY
)) {
1352 error
= wacom_initialize_battery(wacom
);
1357 if (!(features
->quirks
& WACOM_QUIRK_NO_INPUT
)) {
1358 error
= wacom_register_inputs(wacom
);
1363 if (hdev
->bus
== BUS_BLUETOOTH
) {
1364 error
= device_create_file(&hdev
->dev
, &dev_attr_speed
);
1367 "can't create sysfs speed attribute err: %d\n",
1371 /* Note that if query fails it is not a hard failure */
1372 wacom_query_tablet_data(hdev
, features
);
1374 /* Regular HID work starts now */
1375 error
= hid_hw_start(hdev
, HID_CONNECT_HIDRAW
);
1377 hid_err(hdev
, "hw start failed\n");
1381 if (features
->quirks
& WACOM_QUIRK_MONITOR
)
1382 error
= hid_hw_open(hdev
);
1384 if (wacom_wac
->features
.type
== INTUOSHT
&& wacom_wac
->features
.touch_max
) {
1385 if (wacom_wac
->features
.device_type
== BTN_TOOL_FINGER
)
1386 wacom_wac
->shared
->touch_input
= wacom_wac
->input
;
1391 fail5
: if (hdev
->bus
== BUS_BLUETOOTH
)
1392 device_remove_file(&hdev
->dev
, &dev_attr_speed
);
1393 wacom_unregister_inputs(wacom
);
1394 fail4
: wacom_destroy_battery(wacom
);
1395 fail3
: wacom_destroy_leds(wacom
);
1396 fail2
: wacom_remove_shared_data(wacom_wac
);
1397 fail1
: kfree(wacom
);
1398 hid_set_drvdata(hdev
, NULL
);
1402 static void wacom_remove(struct hid_device
*hdev
)
1404 struct wacom
*wacom
= hid_get_drvdata(hdev
);
1408 cancel_work_sync(&wacom
->work
);
1409 wacom_unregister_inputs(wacom
);
1410 if (hdev
->bus
== BUS_BLUETOOTH
)
1411 device_remove_file(&hdev
->dev
, &dev_attr_speed
);
1412 wacom_destroy_battery(wacom
);
1413 wacom_destroy_leds(wacom
);
1414 wacom_remove_shared_data(&wacom
->wacom_wac
);
1416 hid_set_drvdata(hdev
, NULL
);
1420 static int wacom_resume(struct hid_device
*hdev
)
1422 struct wacom
*wacom
= hid_get_drvdata(hdev
);
1423 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
1425 mutex_lock(&wacom
->lock
);
1427 /* switch to wacom mode first */
1428 wacom_query_tablet_data(hdev
, features
);
1429 wacom_led_control(wacom
);
1431 mutex_unlock(&wacom
->lock
);
1436 static int wacom_reset_resume(struct hid_device
*hdev
)
1438 return wacom_resume(hdev
);
1441 static struct hid_driver wacom_driver
= {
1443 .id_table
= wacom_ids
,
1444 .probe
= wacom_probe
,
1445 .remove
= wacom_remove
,
1447 .resume
= wacom_resume
,
1448 .reset_resume
= wacom_reset_resume
,
1450 .raw_event
= wacom_raw_event
,
1452 module_hid_driver(wacom_driver
);