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_RETRIES 10
25 static int wacom_get_report(struct hid_device
*hdev
, u8 type
, u8 id
,
26 void *buf
, size_t size
, unsigned int retries
)
31 retval
= hid_hw_raw_request(hdev
, id
, buf
, size
, type
,
33 } while ((retval
== -ETIMEDOUT
|| retval
== -EPIPE
) && --retries
);
38 static int wacom_set_report(struct hid_device
*hdev
, u8 type
, u8 id
,
39 void *buf
, size_t size
, unsigned int retries
)
44 retval
= hid_hw_raw_request(hdev
, id
, buf
, size
, type
,
46 } while ((retval
== -ETIMEDOUT
|| retval
== -EPIPE
) && --retries
);
51 static int wacom_raw_event(struct hid_device
*hdev
, struct hid_report
*report
,
52 u8
*raw_data
, int size
)
54 struct wacom
*wacom
= hid_get_drvdata(hdev
);
56 if (size
> WACOM_PKGLEN_MAX
)
59 memcpy(wacom
->wacom_wac
.data
, raw_data
, size
);
61 wacom_wac_irq(&wacom
->wacom_wac
, size
);
66 static int wacom_open(struct input_dev
*dev
)
68 struct wacom
*wacom
= input_get_drvdata(dev
);
71 mutex_lock(&wacom
->lock
);
72 retval
= hid_hw_open(wacom
->hdev
);
73 mutex_unlock(&wacom
->lock
);
78 static void wacom_close(struct input_dev
*dev
)
80 struct wacom
*wacom
= input_get_drvdata(dev
);
82 mutex_lock(&wacom
->lock
);
83 hid_hw_close(wacom
->hdev
);
84 mutex_unlock(&wacom
->lock
);
88 * Calculate the resolution of the X or Y axis using hidinput_calc_abs_res.
90 static int wacom_calc_hid_res(int logical_extents
, int physical_extents
,
91 unsigned unit
, int exponent
)
93 struct hid_field field
= {
94 .logical_maximum
= logical_extents
,
95 .physical_maximum
= physical_extents
,
97 .unit_exponent
= exponent
,
100 return hidinput_calc_abs_res(&field
, ABS_X
);
103 static void wacom_feature_mapping(struct hid_device
*hdev
,
104 struct hid_field
*field
, struct hid_usage
*usage
)
106 struct wacom
*wacom
= hid_get_drvdata(hdev
);
107 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
109 switch (usage
->hid
) {
110 case HID_DG_CONTACTMAX
:
111 /* leave touch_max as is if predefined */
112 if (!features
->touch_max
)
113 features
->touch_max
= field
->value
[0];
119 * Interface Descriptor of wacom devices can be incomplete and
120 * inconsistent so wacom_features table is used to store stylus
121 * device's packet lengths, various maximum values, and tablet
122 * resolution based on product ID's.
124 * For devices that contain 2 interfaces, wacom_features table is
125 * inaccurate for the touch interface. Since the Interface Descriptor
126 * for touch interfaces has pretty complete data, this function exists
127 * to query tablet for this missing information instead of hard coding in
128 * an additional table.
130 * A typical Interface Descriptor for a stylus will contain a
131 * boot mouse application collection that is not of interest and this
132 * function will ignore it.
134 * It also contains a digitizer application collection that also is not
135 * of interest since any information it contains would be duplicate
136 * of what is in wacom_features. Usually it defines a report of an array
137 * of bytes that could be used as max length of the stylus packet returned.
138 * If it happens to define a Digitizer-Stylus Physical Collection then
139 * the X and Y logical values contain valid data but it is ignored.
141 * A typical Interface Descriptor for a touch interface will contain a
142 * Digitizer-Finger Physical Collection which will define both logical
143 * X/Y maximum as well as the physical size of tablet. Since touch
144 * interfaces haven't supported pressure or distance, this is enough
145 * information to override invalid values in the wacom_features table.
147 * Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful
148 * data. We deal with them after returning from this function.
150 static void wacom_usage_mapping(struct hid_device
*hdev
,
151 struct hid_field
*field
, struct hid_usage
*usage
)
153 struct wacom
*wacom
= hid_get_drvdata(hdev
);
154 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
155 bool finger
= (field
->logical
== HID_DG_FINGER
) ||
156 (field
->physical
== HID_DG_FINGER
);
157 bool pen
= (field
->logical
== HID_DG_STYLUS
) ||
158 (field
->physical
== HID_DG_STYLUS
);
161 * Requiring Stylus Usage will ignore boot mouse
162 * X/Y values and some cases of invalid Digitizer X/Y
163 * values commonly reported.
168 if (finger
&& !features
->touch_max
)
169 /* touch device at least supports one touch point */
170 features
->touch_max
= 1;
172 switch (usage
->hid
) {
174 features
->x_max
= field
->logical_maximum
;
176 features
->device_type
= BTN_TOOL_FINGER
;
177 features
->x_phy
= field
->physical_maximum
;
178 if (features
->type
!= BAMBOO_PT
) {
179 features
->unit
= field
->unit
;
180 features
->unitExpo
= field
->unit_exponent
;
183 features
->device_type
= BTN_TOOL_PEN
;
187 features
->y_max
= field
->logical_maximum
;
189 features
->y_phy
= field
->physical_maximum
;
190 if (features
->type
!= BAMBOO_PT
) {
191 features
->unit
= field
->unit
;
192 features
->unitExpo
= field
->unit_exponent
;
196 case HID_DG_TIPPRESSURE
:
198 features
->pressure_max
= field
->logical_maximum
;
203 static void wacom_parse_hid(struct hid_device
*hdev
,
204 struct wacom_features
*features
)
206 struct hid_report_enum
*rep_enum
;
207 struct hid_report
*hreport
;
210 /* check features first */
211 rep_enum
= &hdev
->report_enum
[HID_FEATURE_REPORT
];
212 list_for_each_entry(hreport
, &rep_enum
->report_list
, list
) {
213 for (i
= 0; i
< hreport
->maxfield
; i
++) {
214 /* Ignore if report count is out of bounds. */
215 if (hreport
->field
[i
]->report_count
< 1)
218 for (j
= 0; j
< hreport
->field
[i
]->maxusage
; j
++) {
219 wacom_feature_mapping(hdev
, hreport
->field
[i
],
220 hreport
->field
[i
]->usage
+ j
);
225 /* now check the input usages */
226 rep_enum
= &hdev
->report_enum
[HID_INPUT_REPORT
];
227 list_for_each_entry(hreport
, &rep_enum
->report_list
, list
) {
229 if (!hreport
->maxfield
)
232 for (i
= 0; i
< hreport
->maxfield
; i
++)
233 for (j
= 0; j
< hreport
->field
[i
]->maxusage
; j
++)
234 wacom_usage_mapping(hdev
, hreport
->field
[i
],
235 hreport
->field
[i
]->usage
+ j
);
239 static int wacom_set_device_mode(struct hid_device
*hdev
, int report_id
,
240 int length
, int mode
)
242 unsigned char *rep_data
;
243 int error
= -ENOMEM
, limit
= 0;
245 rep_data
= kzalloc(length
, GFP_KERNEL
);
250 rep_data
[0] = report_id
;
253 error
= wacom_set_report(hdev
, HID_FEATURE_REPORT
,
254 report_id
, rep_data
, length
, 1);
256 error
= wacom_get_report(hdev
, HID_FEATURE_REPORT
,
257 report_id
, rep_data
, length
, 1);
258 } while ((error
< 0 || rep_data
[1] != mode
) && limit
++ < WAC_MSG_RETRIES
);
262 return error
< 0 ? error
: 0;
265 static int wacom_bt_query_tablet_data(struct hid_device
*hdev
, u8 speed
,
266 struct wacom_features
*features
)
272 * Switch the tablet into its most-capable mode. Wacom tablets are
273 * typically configured to power-up in a mode which sends mouse-like
274 * reports to the OS. To get absolute position, pressure data, etc.
275 * from the tablet, it is necessary to switch the tablet out of this
276 * mode and into one which sends the full range of tablet data.
278 static int wacom_query_tablet_data(struct hid_device
*hdev
,
279 struct wacom_features
*features
)
281 if (hdev
->bus
== BUS_BLUETOOTH
)
282 return wacom_bt_query_tablet_data(hdev
, 1, features
);
284 if (features
->device_type
== BTN_TOOL_FINGER
) {
285 if (features
->type
> TABLETPC
) {
286 /* MT Tablet PC touch */
287 return wacom_set_device_mode(hdev
, 3, 4, 4);
289 else if (features
->type
== WACOM_24HDT
|| features
->type
== CINTIQ_HYBRID
) {
290 return wacom_set_device_mode(hdev
, 18, 3, 2);
292 } else if (features
->device_type
== BTN_TOOL_PEN
) {
293 if (features
->type
<= BAMBOO_PT
&& features
->type
!= WIRELESS
) {
294 return wacom_set_device_mode(hdev
, 2, 2, 2);
301 static void wacom_retrieve_hid_descriptor(struct hid_device
*hdev
,
302 struct wacom_features
*features
)
304 struct wacom
*wacom
= hid_get_drvdata(hdev
);
305 struct usb_interface
*intf
= wacom
->intf
;
307 /* default features */
308 features
->device_type
= BTN_TOOL_PEN
;
309 features
->x_fuzz
= 4;
310 features
->y_fuzz
= 4;
311 features
->pressure_fuzz
= 0;
312 features
->distance_fuzz
= 0;
315 * The wireless device HID is basic and layout conflicts with
316 * other tablets (monitor and touch interface can look like pen).
317 * Skip the query for this type and modify defaults based on
320 if (features
->type
== WIRELESS
) {
321 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
== 0) {
322 features
->device_type
= 0;
323 } else if (intf
->cur_altsetting
->desc
.bInterfaceNumber
== 2) {
324 features
->device_type
= BTN_TOOL_FINGER
;
325 features
->pktlen
= WACOM_PKGLEN_BBTOUCH3
;
329 /* only devices that support touch need to retrieve the info */
330 if (features
->type
< BAMBOO_PT
)
333 wacom_parse_hid(hdev
, features
);
336 struct wacom_hdev_data
{
337 struct list_head list
;
339 struct hid_device
*dev
;
340 struct wacom_shared shared
;
343 static LIST_HEAD(wacom_udev_list
);
344 static DEFINE_MUTEX(wacom_udev_list_lock
);
346 static bool wacom_are_sibling(struct hid_device
*hdev
,
347 struct hid_device
*sibling
)
349 struct wacom
*wacom
= hid_get_drvdata(hdev
);
350 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
351 int vid
= features
->oVid
;
352 int pid
= features
->oPid
;
355 if (vid
== 0 && pid
== 0) {
360 if (vid
!= sibling
->vendor
|| pid
!= sibling
->product
)
363 /* Compare the physical path. */
364 n1
= strrchr(hdev
->phys
, '.') - hdev
->phys
;
365 n2
= strrchr(sibling
->phys
, '.') - sibling
->phys
;
366 if (n1
!= n2
|| n1
<= 0 || n2
<= 0)
369 return !strncmp(hdev
->phys
, sibling
->phys
, n1
);
372 static struct wacom_hdev_data
*wacom_get_hdev_data(struct hid_device
*hdev
)
374 struct wacom_hdev_data
*data
;
376 list_for_each_entry(data
, &wacom_udev_list
, list
) {
377 if (wacom_are_sibling(hdev
, data
->dev
)) {
378 kref_get(&data
->kref
);
386 static int wacom_add_shared_data(struct hid_device
*hdev
)
388 struct wacom
*wacom
= hid_get_drvdata(hdev
);
389 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
390 struct wacom_hdev_data
*data
;
393 mutex_lock(&wacom_udev_list_lock
);
395 data
= wacom_get_hdev_data(hdev
);
397 data
= kzalloc(sizeof(struct wacom_hdev_data
), GFP_KERNEL
);
403 kref_init(&data
->kref
);
405 list_add_tail(&data
->list
, &wacom_udev_list
);
408 wacom_wac
->shared
= &data
->shared
;
411 mutex_unlock(&wacom_udev_list_lock
);
415 static void wacom_release_shared_data(struct kref
*kref
)
417 struct wacom_hdev_data
*data
=
418 container_of(kref
, struct wacom_hdev_data
, kref
);
420 mutex_lock(&wacom_udev_list_lock
);
421 list_del(&data
->list
);
422 mutex_unlock(&wacom_udev_list_lock
);
427 static void wacom_remove_shared_data(struct wacom_wac
*wacom
)
429 struct wacom_hdev_data
*data
;
432 data
= container_of(wacom
->shared
, struct wacom_hdev_data
, shared
);
433 kref_put(&data
->kref
, wacom_release_shared_data
);
434 wacom
->shared
= NULL
;
438 static int wacom_led_control(struct wacom
*wacom
)
443 buf
= kzalloc(9, GFP_KERNEL
);
447 if (wacom
->wacom_wac
.features
.type
>= INTUOS5S
&&
448 wacom
->wacom_wac
.features
.type
<= INTUOSPL
) {
450 * Touch Ring and crop mark LED luminance may take on
451 * one of four values:
452 * 0 = Low; 1 = Medium; 2 = High; 3 = Off
454 int ring_led
= wacom
->led
.select
[0] & 0x03;
455 int ring_lum
= (((wacom
->led
.llv
& 0x60) >> 5) - 1) & 0x03;
458 buf
[0] = WAC_CMD_LED_CONTROL
;
459 buf
[1] = (crop_lum
<< 4) | (ring_lum
<< 2) | (ring_led
);
462 int led
= wacom
->led
.select
[0] | 0x4;
464 if (wacom
->wacom_wac
.features
.type
== WACOM_21UX2
||
465 wacom
->wacom_wac
.features
.type
== WACOM_24HD
)
466 led
|= (wacom
->led
.select
[1] << 4) | 0x40;
468 buf
[0] = WAC_CMD_LED_CONTROL
;
470 buf
[2] = wacom
->led
.llv
;
471 buf
[3] = wacom
->led
.hlv
;
472 buf
[4] = wacom
->led
.img_lum
;
475 retval
= wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
,
476 WAC_CMD_LED_CONTROL
, buf
, 9, WAC_CMD_RETRIES
);
482 static int wacom_led_putimage(struct wacom
*wacom
, int button_id
, const void *img
)
487 buf
= kzalloc(259, GFP_KERNEL
);
491 /* Send 'start' command */
492 buf
[0] = WAC_CMD_ICON_START
;
494 retval
= wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
,
495 WAC_CMD_ICON_START
, buf
, 2, WAC_CMD_RETRIES
);
499 buf
[0] = WAC_CMD_ICON_XFER
;
500 buf
[1] = button_id
& 0x07;
501 for (i
= 0; i
< 4; i
++) {
503 memcpy(buf
+ 3, img
+ i
* 256, 256);
505 retval
= wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
,
507 buf
, 259, WAC_CMD_RETRIES
);
513 buf
[0] = WAC_CMD_ICON_START
;
515 wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
, WAC_CMD_ICON_START
,
516 buf
, 2, WAC_CMD_RETRIES
);
523 static ssize_t
wacom_led_select_store(struct device
*dev
, int set_id
,
524 const char *buf
, size_t count
)
526 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
527 struct wacom
*wacom
= hid_get_drvdata(hdev
);
531 err
= kstrtouint(buf
, 10, &id
);
535 mutex_lock(&wacom
->lock
);
537 wacom
->led
.select
[set_id
] = id
& 0x3;
538 err
= wacom_led_control(wacom
);
540 mutex_unlock(&wacom
->lock
);
542 return err
< 0 ? err
: count
;
545 #define DEVICE_LED_SELECT_ATTR(SET_ID) \
546 static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
547 struct device_attribute *attr, const char *buf, size_t count) \
549 return wacom_led_select_store(dev, SET_ID, buf, count); \
551 static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
552 struct device_attribute *attr, char *buf) \
554 struct hid_device *hdev = container_of(dev, struct hid_device, dev);\
555 struct wacom *wacom = hid_get_drvdata(hdev); \
556 return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \
558 static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \
559 wacom_led##SET_ID##_select_show, \
560 wacom_led##SET_ID##_select_store)
562 DEVICE_LED_SELECT_ATTR(0);
563 DEVICE_LED_SELECT_ATTR(1);
565 static ssize_t
wacom_luminance_store(struct wacom
*wacom
, u8
*dest
,
566 const char *buf
, size_t count
)
571 err
= kstrtouint(buf
, 10, &value
);
575 mutex_lock(&wacom
->lock
);
577 *dest
= value
& 0x7f;
578 err
= wacom_led_control(wacom
);
580 mutex_unlock(&wacom
->lock
);
582 return err
< 0 ? err
: count
;
585 #define DEVICE_LUMINANCE_ATTR(name, field) \
586 static ssize_t wacom_##name##_luminance_store(struct device *dev, \
587 struct device_attribute *attr, const char *buf, size_t count) \
589 struct hid_device *hdev = container_of(dev, struct hid_device, dev);\
590 struct wacom *wacom = hid_get_drvdata(hdev); \
592 return wacom_luminance_store(wacom, &wacom->led.field, \
595 static DEVICE_ATTR(name##_luminance, S_IWUSR, \
596 NULL, wacom_##name##_luminance_store)
598 DEVICE_LUMINANCE_ATTR(status0
, llv
);
599 DEVICE_LUMINANCE_ATTR(status1
, hlv
);
600 DEVICE_LUMINANCE_ATTR(buttons
, img_lum
);
602 static ssize_t
wacom_button_image_store(struct device
*dev
, int button_id
,
603 const char *buf
, size_t count
)
605 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
606 struct wacom
*wacom
= hid_get_drvdata(hdev
);
612 mutex_lock(&wacom
->lock
);
614 err
= wacom_led_putimage(wacom
, button_id
, buf
);
616 mutex_unlock(&wacom
->lock
);
618 return err
< 0 ? err
: count
;
621 #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
622 static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
623 struct device_attribute *attr, const char *buf, size_t count) \
625 return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
627 static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \
628 NULL, wacom_btnimg##BUTTON_ID##_store)
630 DEVICE_BTNIMG_ATTR(0);
631 DEVICE_BTNIMG_ATTR(1);
632 DEVICE_BTNIMG_ATTR(2);
633 DEVICE_BTNIMG_ATTR(3);
634 DEVICE_BTNIMG_ATTR(4);
635 DEVICE_BTNIMG_ATTR(5);
636 DEVICE_BTNIMG_ATTR(6);
637 DEVICE_BTNIMG_ATTR(7);
639 static struct attribute
*cintiq_led_attrs
[] = {
640 &dev_attr_status_led0_select
.attr
,
641 &dev_attr_status_led1_select
.attr
,
645 static struct attribute_group cintiq_led_attr_group
= {
647 .attrs
= cintiq_led_attrs
,
650 static struct attribute
*intuos4_led_attrs
[] = {
651 &dev_attr_status0_luminance
.attr
,
652 &dev_attr_status1_luminance
.attr
,
653 &dev_attr_status_led0_select
.attr
,
654 &dev_attr_buttons_luminance
.attr
,
655 &dev_attr_button0_rawimg
.attr
,
656 &dev_attr_button1_rawimg
.attr
,
657 &dev_attr_button2_rawimg
.attr
,
658 &dev_attr_button3_rawimg
.attr
,
659 &dev_attr_button4_rawimg
.attr
,
660 &dev_attr_button5_rawimg
.attr
,
661 &dev_attr_button6_rawimg
.attr
,
662 &dev_attr_button7_rawimg
.attr
,
666 static struct attribute_group intuos4_led_attr_group
= {
668 .attrs
= intuos4_led_attrs
,
671 static struct attribute
*intuos5_led_attrs
[] = {
672 &dev_attr_status0_luminance
.attr
,
673 &dev_attr_status_led0_select
.attr
,
677 static struct attribute_group intuos5_led_attr_group
= {
679 .attrs
= intuos5_led_attrs
,
682 static int wacom_initialize_leds(struct wacom
*wacom
)
686 /* Initialize default values */
687 switch (wacom
->wacom_wac
.features
.type
) {
691 wacom
->led
.select
[0] = 0;
692 wacom
->led
.select
[1] = 0;
695 wacom
->led
.img_lum
= 10;
696 error
= sysfs_create_group(&wacom
->hdev
->dev
.kobj
,
697 &intuos4_led_attr_group
);
702 wacom
->led
.select
[0] = 0;
703 wacom
->led
.select
[1] = 0;
706 wacom
->led
.img_lum
= 0;
708 error
= sysfs_create_group(&wacom
->hdev
->dev
.kobj
,
709 &cintiq_led_attr_group
);
718 if (wacom
->wacom_wac
.features
.device_type
== BTN_TOOL_PEN
) {
719 wacom
->led
.select
[0] = 0;
720 wacom
->led
.select
[1] = 0;
723 wacom
->led
.img_lum
= 0;
725 error
= sysfs_create_group(&wacom
->hdev
->dev
.kobj
,
726 &intuos5_led_attr_group
);
737 "cannot create sysfs group err: %d\n", error
);
740 wacom_led_control(wacom
);
741 wacom
->led_initialized
= true;
746 static void wacom_destroy_leds(struct wacom
*wacom
)
748 if (!wacom
->led_initialized
)
751 wacom
->led_initialized
= false;
753 switch (wacom
->wacom_wac
.features
.type
) {
757 sysfs_remove_group(&wacom
->hdev
->dev
.kobj
,
758 &intuos4_led_attr_group
);
763 sysfs_remove_group(&wacom
->hdev
->dev
.kobj
,
764 &cintiq_led_attr_group
);
773 if (wacom
->wacom_wac
.features
.device_type
== BTN_TOOL_PEN
)
774 sysfs_remove_group(&wacom
->hdev
->dev
.kobj
,
775 &intuos5_led_attr_group
);
780 static enum power_supply_property wacom_battery_props
[] = {
781 POWER_SUPPLY_PROP_STATUS
,
782 POWER_SUPPLY_PROP_SCOPE
,
783 POWER_SUPPLY_PROP_CAPACITY
786 static enum power_supply_property wacom_ac_props
[] = {
787 POWER_SUPPLY_PROP_PRESENT
,
788 POWER_SUPPLY_PROP_ONLINE
,
789 POWER_SUPPLY_PROP_SCOPE
,
792 static int wacom_battery_get_property(struct power_supply
*psy
,
793 enum power_supply_property psp
,
794 union power_supply_propval
*val
)
796 struct wacom
*wacom
= container_of(psy
, struct wacom
, battery
);
800 case POWER_SUPPLY_PROP_SCOPE
:
801 val
->intval
= POWER_SUPPLY_SCOPE_DEVICE
;
803 case POWER_SUPPLY_PROP_CAPACITY
:
805 wacom
->wacom_wac
.battery_capacity
;
807 case POWER_SUPPLY_PROP_STATUS
:
808 if (wacom
->wacom_wac
.bat_charging
)
809 val
->intval
= POWER_SUPPLY_STATUS_CHARGING
;
810 else if (wacom
->wacom_wac
.battery_capacity
== 100 &&
811 wacom
->wacom_wac
.ps_connected
)
812 val
->intval
= POWER_SUPPLY_STATUS_FULL
;
814 val
->intval
= POWER_SUPPLY_STATUS_DISCHARGING
;
824 static int wacom_ac_get_property(struct power_supply
*psy
,
825 enum power_supply_property psp
,
826 union power_supply_propval
*val
)
828 struct wacom
*wacom
= container_of(psy
, struct wacom
, ac
);
832 case POWER_SUPPLY_PROP_PRESENT
:
834 case POWER_SUPPLY_PROP_ONLINE
:
835 val
->intval
= wacom
->wacom_wac
.ps_connected
;
837 case POWER_SUPPLY_PROP_SCOPE
:
838 val
->intval
= POWER_SUPPLY_SCOPE_DEVICE
;
847 static int wacom_initialize_battery(struct wacom
*wacom
)
849 static atomic_t battery_no
= ATOMIC_INIT(0);
853 if (wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_BATTERY
) {
854 n
= atomic_inc_return(&battery_no
) - 1;
856 wacom
->battery
.properties
= wacom_battery_props
;
857 wacom
->battery
.num_properties
= ARRAY_SIZE(wacom_battery_props
);
858 wacom
->battery
.get_property
= wacom_battery_get_property
;
859 sprintf(wacom
->wacom_wac
.bat_name
, "wacom_battery_%ld", n
);
860 wacom
->battery
.name
= wacom
->wacom_wac
.bat_name
;
861 wacom
->battery
.type
= POWER_SUPPLY_TYPE_BATTERY
;
862 wacom
->battery
.use_for_apm
= 0;
864 wacom
->ac
.properties
= wacom_ac_props
;
865 wacom
->ac
.num_properties
= ARRAY_SIZE(wacom_ac_props
);
866 wacom
->ac
.get_property
= wacom_ac_get_property
;
867 sprintf(wacom
->wacom_wac
.ac_name
, "wacom_ac_%ld", n
);
868 wacom
->ac
.name
= wacom
->wacom_wac
.ac_name
;
869 wacom
->ac
.type
= POWER_SUPPLY_TYPE_MAINS
;
870 wacom
->ac
.use_for_apm
= 0;
872 error
= power_supply_register(&wacom
->hdev
->dev
,
877 power_supply_powers(&wacom
->battery
, &wacom
->hdev
->dev
);
879 error
= power_supply_register(&wacom
->hdev
->dev
, &wacom
->ac
);
881 power_supply_unregister(&wacom
->battery
);
885 power_supply_powers(&wacom
->ac
, &wacom
->hdev
->dev
);
891 static void wacom_destroy_battery(struct wacom
*wacom
)
893 if ((wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_BATTERY
) &&
894 wacom
->battery
.dev
) {
895 power_supply_unregister(&wacom
->battery
);
896 wacom
->battery
.dev
= NULL
;
897 power_supply_unregister(&wacom
->ac
);
898 wacom
->ac
.dev
= NULL
;
902 static ssize_t
wacom_show_speed(struct device
*dev
,
903 struct device_attribute
906 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
907 struct wacom
*wacom
= hid_get_drvdata(hdev
);
909 return snprintf(buf
, PAGE_SIZE
, "%i\n", wacom
->wacom_wac
.bt_high_speed
);
912 static ssize_t
wacom_store_speed(struct device
*dev
,
913 struct device_attribute
*attr
,
914 const char *buf
, size_t count
)
916 struct hid_device
*hdev
= container_of(dev
, struct hid_device
, dev
);
917 struct wacom
*wacom
= hid_get_drvdata(hdev
);
920 if (kstrtou8(buf
, 0, &new_speed
))
923 if (new_speed
!= 0 && new_speed
!= 1)
926 wacom_bt_query_tablet_data(hdev
, new_speed
, &wacom
->wacom_wac
.features
);
931 static DEVICE_ATTR(speed
, S_IRUGO
| S_IWUSR
| S_IWGRP
,
932 wacom_show_speed
, wacom_store_speed
);
934 static struct input_dev
*wacom_allocate_input(struct wacom
*wacom
)
936 struct input_dev
*input_dev
;
937 struct hid_device
*hdev
= wacom
->hdev
;
938 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
940 input_dev
= input_allocate_device();
944 input_dev
->name
= wacom_wac
->name
;
945 input_dev
->phys
= hdev
->phys
;
946 input_dev
->dev
.parent
= &hdev
->dev
;
947 input_dev
->open
= wacom_open
;
948 input_dev
->close
= wacom_close
;
949 input_dev
->uniq
= hdev
->uniq
;
950 input_dev
->id
.bustype
= hdev
->bus
;
951 input_dev
->id
.vendor
= hdev
->vendor
;
952 input_dev
->id
.product
= hdev
->product
;
953 input_dev
->id
.version
= hdev
->version
;
954 input_set_drvdata(input_dev
, wacom
);
959 static void wacom_unregister_inputs(struct wacom
*wacom
)
961 if (wacom
->wacom_wac
.input
)
962 input_unregister_device(wacom
->wacom_wac
.input
);
963 if (wacom
->wacom_wac
.pad_input
)
964 input_unregister_device(wacom
->wacom_wac
.pad_input
);
965 wacom
->wacom_wac
.input
= NULL
;
966 wacom
->wacom_wac
.pad_input
= NULL
;
969 static int wacom_register_inputs(struct wacom
*wacom
)
971 struct input_dev
*input_dev
, *pad_input_dev
;
972 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
975 input_dev
= wacom_allocate_input(wacom
);
976 pad_input_dev
= wacom_allocate_input(wacom
);
977 if (!input_dev
|| !pad_input_dev
) {
982 wacom_wac
->input
= input_dev
;
983 wacom_wac
->pad_input
= pad_input_dev
;
984 wacom_wac
->pad_input
->name
= wacom_wac
->pad_name
;
986 error
= wacom_setup_input_capabilities(input_dev
, wacom_wac
);
990 error
= input_register_device(input_dev
);
994 error
= wacom_setup_pad_input_capabilities(pad_input_dev
, wacom_wac
);
996 /* no pad in use on this interface */
997 input_free_device(pad_input_dev
);
998 wacom_wac
->pad_input
= NULL
;
999 pad_input_dev
= NULL
;
1001 error
= input_register_device(pad_input_dev
);
1009 input_unregister_device(input_dev
);
1012 wacom_wac
->input
= NULL
;
1013 wacom_wac
->pad_input
= NULL
;
1016 input_free_device(input_dev
);
1018 input_free_device(pad_input_dev
);
1022 static void wacom_wireless_work(struct work_struct
*work
)
1024 struct wacom
*wacom
= container_of(work
, struct wacom
, work
);
1025 struct usb_device
*usbdev
= wacom
->usbdev
;
1026 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
1027 struct hid_device
*hdev1
, *hdev2
;
1028 struct wacom
*wacom1
, *wacom2
;
1029 struct wacom_wac
*wacom_wac1
, *wacom_wac2
;
1033 * Regardless if this is a disconnect or a new tablet,
1034 * remove any existing input and battery devices.
1037 wacom_destroy_battery(wacom
);
1039 /* Stylus interface */
1040 hdev1
= usb_get_intfdata(usbdev
->config
->interface
[1]);
1041 wacom1
= hid_get_drvdata(hdev1
);
1042 wacom_wac1
= &(wacom1
->wacom_wac
);
1043 wacom_unregister_inputs(wacom1
);
1045 /* Touch interface */
1046 hdev2
= usb_get_intfdata(usbdev
->config
->interface
[2]);
1047 wacom2
= hid_get_drvdata(hdev2
);
1048 wacom_wac2
= &(wacom2
->wacom_wac
);
1049 wacom_unregister_inputs(wacom2
);
1051 if (wacom_wac
->pid
== 0) {
1052 hid_info(wacom
->hdev
, "wireless tablet disconnected\n");
1053 wacom_wac1
->shared
->type
= 0;
1055 const struct hid_device_id
*id
= wacom_ids
;
1057 hid_info(wacom
->hdev
, "wireless tablet connected with PID %x\n",
1061 if (id
->vendor
== USB_VENDOR_ID_WACOM
&&
1062 id
->product
== wacom_wac
->pid
)
1068 hid_info(wacom
->hdev
, "ignoring unknown PID.\n");
1072 /* Stylus interface */
1073 wacom_wac1
->features
=
1074 *((struct wacom_features
*)id
->driver_data
);
1075 wacom_wac1
->features
.device_type
= BTN_TOOL_PEN
;
1076 snprintf(wacom_wac1
->name
, WACOM_NAME_MAX
, "%s (WL) Pen",
1077 wacom_wac1
->features
.name
);
1078 snprintf(wacom_wac1
->pad_name
, WACOM_NAME_MAX
, "%s (WL) Pad",
1079 wacom_wac1
->features
.name
);
1080 wacom_wac1
->shared
->touch_max
= wacom_wac1
->features
.touch_max
;
1081 wacom_wac1
->shared
->type
= wacom_wac1
->features
.type
;
1082 error
= wacom_register_inputs(wacom1
);
1086 /* Touch interface */
1087 if (wacom_wac1
->features
.touch_max
||
1088 wacom_wac1
->features
.type
== INTUOSHT
) {
1089 wacom_wac2
->features
=
1090 *((struct wacom_features
*)id
->driver_data
);
1091 wacom_wac2
->features
.pktlen
= WACOM_PKGLEN_BBTOUCH3
;
1092 wacom_wac2
->features
.device_type
= BTN_TOOL_FINGER
;
1093 wacom_wac2
->features
.x_max
= wacom_wac2
->features
.y_max
= 4096;
1094 if (wacom_wac2
->features
.touch_max
)
1095 snprintf(wacom_wac2
->name
, WACOM_NAME_MAX
,
1096 "%s (WL) Finger",wacom_wac2
->features
.name
);
1098 snprintf(wacom_wac2
->name
, WACOM_NAME_MAX
,
1099 "%s (WL) Pad",wacom_wac2
->features
.name
);
1100 snprintf(wacom_wac2
->pad_name
, WACOM_NAME_MAX
,
1101 "%s (WL) Pad", wacom_wac2
->features
.name
);
1102 error
= wacom_register_inputs(wacom2
);
1106 if (wacom_wac1
->features
.type
== INTUOSHT
&&
1107 wacom_wac1
->features
.touch_max
)
1108 wacom_wac
->shared
->touch_input
= wacom_wac2
->input
;
1111 error
= wacom_initialize_battery(wacom
);
1119 wacom_unregister_inputs(wacom1
);
1120 wacom_unregister_inputs(wacom2
);
1125 * Not all devices report physical dimensions from HID.
1126 * Compute the default from hardcoded logical dimension
1127 * and resolution before driver overwrites them.
1129 static void wacom_set_default_phy(struct wacom_features
*features
)
1131 if (features
->x_resolution
) {
1132 features
->x_phy
= (features
->x_max
* 100) /
1133 features
->x_resolution
;
1134 features
->y_phy
= (features
->y_max
* 100) /
1135 features
->y_resolution
;
1139 static void wacom_calculate_res(struct wacom_features
*features
)
1141 features
->x_resolution
= wacom_calc_hid_res(features
->x_max
,
1144 features
->unitExpo
);
1145 features
->y_resolution
= wacom_calc_hid_res(features
->y_max
,
1148 features
->unitExpo
);
1151 static int wacom_hid_report_len(struct hid_report
*report
)
1153 /* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */
1154 return ((report
->size
- 1) >> 3) + 1 + (report
->id
> 0);
1157 static size_t wacom_compute_pktlen(struct hid_device
*hdev
)
1159 struct hid_report_enum
*report_enum
;
1160 struct hid_report
*report
;
1163 report_enum
= hdev
->report_enum
+ HID_INPUT_REPORT
;
1165 list_for_each_entry(report
, &report_enum
->report_list
, list
) {
1166 size_t report_size
= wacom_hid_report_len(report
);
1167 if (report_size
> size
)
1174 static int wacom_probe(struct hid_device
*hdev
,
1175 const struct hid_device_id
*id
)
1177 struct usb_interface
*intf
= to_usb_interface(hdev
->dev
.parent
);
1178 struct usb_device
*dev
= interface_to_usbdev(intf
);
1179 struct wacom
*wacom
;
1180 struct wacom_wac
*wacom_wac
;
1181 struct wacom_features
*features
;
1184 if (!id
->driver_data
)
1187 wacom
= kzalloc(sizeof(struct wacom
), GFP_KERNEL
);
1191 hid_set_drvdata(hdev
, wacom
);
1194 /* ask for the report descriptor to be loaded by HID */
1195 error
= hid_parse(hdev
);
1197 hid_err(hdev
, "parse failed\n");
1201 wacom_wac
= &wacom
->wacom_wac
;
1202 wacom_wac
->features
= *((struct wacom_features
*)id
->driver_data
);
1203 features
= &wacom_wac
->features
;
1204 features
->pktlen
= wacom_compute_pktlen(hdev
);
1205 if (features
->pktlen
> WACOM_PKGLEN_MAX
) {
1210 if (features
->check_for_hid_type
&& features
->hid_type
!= hdev
->type
) {
1215 wacom
->usbdev
= dev
;
1217 mutex_init(&wacom
->lock
);
1218 INIT_WORK(&wacom
->work
, wacom_wireless_work
);
1220 /* set the default size in case we do not get them from hid */
1221 wacom_set_default_phy(features
);
1223 /* Retrieve the physical and logical size for touch devices */
1224 wacom_retrieve_hid_descriptor(hdev
, features
);
1227 * Intuos5 has no useful data about its touch interface in its
1228 * HID descriptor. If this is the touch interface (PacketSize
1229 * of WACOM_PKGLEN_BBTOUCH3), override the table values.
1231 if (features
->type
>= INTUOS5S
&& features
->type
<= INTUOSHT
) {
1232 if (features
->pktlen
== WACOM_PKGLEN_BBTOUCH3
) {
1233 features
->device_type
= BTN_TOOL_FINGER
;
1235 features
->x_max
= 4096;
1236 features
->y_max
= 4096;
1238 features
->device_type
= BTN_TOOL_PEN
;
1243 * Same thing for Bamboo 3rd gen.
1245 if ((features
->type
== BAMBOO_PT
) &&
1246 (features
->pktlen
== WACOM_PKGLEN_BBTOUCH3
) &&
1247 (features
->device_type
== BTN_TOOL_PEN
)) {
1248 features
->device_type
= BTN_TOOL_FINGER
;
1250 features
->x_max
= 4096;
1251 features
->y_max
= 4096;
1254 if (hdev
->bus
== BUS_BLUETOOTH
)
1255 features
->quirks
|= WACOM_QUIRK_BATTERY
;
1257 wacom_setup_device_quirks(features
);
1259 /* set unit to "100th of a mm" for devices not reported by HID */
1260 if (!features
->unit
) {
1261 features
->unit
= 0x11;
1262 features
->unitExpo
= -3;
1264 wacom_calculate_res(features
);
1266 strlcpy(wacom_wac
->name
, features
->name
, sizeof(wacom_wac
->name
));
1267 snprintf(wacom_wac
->pad_name
, sizeof(wacom_wac
->pad_name
),
1268 "%s Pad", features
->name
);
1270 if (features
->quirks
& WACOM_QUIRK_MULTI_INPUT
) {
1271 /* Append the device type to the name */
1272 if (features
->device_type
!= BTN_TOOL_FINGER
)
1273 strlcat(wacom_wac
->name
, " Pen", WACOM_NAME_MAX
);
1274 else if (features
->touch_max
)
1275 strlcat(wacom_wac
->name
, " Finger", WACOM_NAME_MAX
);
1277 strlcat(wacom_wac
->name
, " Pad", WACOM_NAME_MAX
);
1279 error
= wacom_add_shared_data(hdev
);
1284 error
= wacom_initialize_leds(wacom
);
1288 if (!(features
->quirks
& WACOM_QUIRK_MONITOR
) &&
1289 (features
->quirks
& WACOM_QUIRK_BATTERY
)) {
1290 error
= wacom_initialize_battery(wacom
);
1295 if (!(features
->quirks
& WACOM_QUIRK_NO_INPUT
)) {
1296 error
= wacom_register_inputs(wacom
);
1301 if (hdev
->bus
== BUS_BLUETOOTH
) {
1302 error
= device_create_file(&hdev
->dev
, &dev_attr_speed
);
1305 "can't create sysfs speed attribute err: %d\n",
1309 /* Note that if query fails it is not a hard failure */
1310 wacom_query_tablet_data(hdev
, features
);
1312 /* Regular HID work starts now */
1313 error
= hid_hw_start(hdev
, HID_CONNECT_HIDRAW
);
1315 hid_err(hdev
, "hw start failed\n");
1319 if (features
->quirks
& WACOM_QUIRK_MONITOR
)
1320 error
= hid_hw_open(hdev
);
1322 if (wacom_wac
->features
.type
== INTUOSHT
&& wacom_wac
->features
.touch_max
) {
1323 if (wacom_wac
->features
.device_type
== BTN_TOOL_FINGER
)
1324 wacom_wac
->shared
->touch_input
= wacom_wac
->input
;
1329 fail5
: if (hdev
->bus
== BUS_BLUETOOTH
)
1330 device_remove_file(&hdev
->dev
, &dev_attr_speed
);
1331 wacom_unregister_inputs(wacom
);
1332 fail4
: wacom_destroy_battery(wacom
);
1333 fail3
: wacom_destroy_leds(wacom
);
1334 fail2
: wacom_remove_shared_data(wacom_wac
);
1335 fail1
: kfree(wacom
);
1336 hid_set_drvdata(hdev
, NULL
);
1340 static void wacom_remove(struct hid_device
*hdev
)
1342 struct wacom
*wacom
= hid_get_drvdata(hdev
);
1346 cancel_work_sync(&wacom
->work
);
1347 wacom_unregister_inputs(wacom
);
1348 if (hdev
->bus
== BUS_BLUETOOTH
)
1349 device_remove_file(&hdev
->dev
, &dev_attr_speed
);
1350 wacom_destroy_battery(wacom
);
1351 wacom_destroy_leds(wacom
);
1352 wacom_remove_shared_data(&wacom
->wacom_wac
);
1354 hid_set_drvdata(hdev
, NULL
);
1358 static int wacom_resume(struct hid_device
*hdev
)
1360 struct wacom
*wacom
= hid_get_drvdata(hdev
);
1361 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
1363 mutex_lock(&wacom
->lock
);
1365 /* switch to wacom mode first */
1366 wacom_query_tablet_data(hdev
, features
);
1367 wacom_led_control(wacom
);
1369 mutex_unlock(&wacom
->lock
);
1374 static int wacom_reset_resume(struct hid_device
*hdev
)
1376 return wacom_resume(hdev
);
1379 static struct hid_driver wacom_driver
= {
1381 .id_table
= wacom_ids
,
1382 .probe
= wacom_probe
,
1383 .remove
= wacom_remove
,
1385 .resume
= wacom_resume
,
1386 .reset_resume
= wacom_reset_resume
,
1388 .raw_event
= wacom_raw_event
,
1390 module_hid_driver(wacom_driver
);