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/input/mt.h>
18 #define WAC_MSG_RETRIES 5
19 #define WAC_CMD_RETRIES 10
21 #define DEV_ATTR_RW_PERM (S_IRUGO | S_IWUSR | S_IWGRP)
22 #define DEV_ATTR_WO_PERM (S_IWUSR | S_IWGRP)
23 #define DEV_ATTR_RO_PERM (S_IRUSR | S_IRGRP)
25 static int wacom_get_report(struct hid_device
*hdev
, u8 type
, u8
*buf
,
26 size_t size
, unsigned int retries
)
31 retval
= hid_hw_raw_request(hdev
, buf
[0], buf
, size
, type
,
33 } while ((retval
== -ETIMEDOUT
|| retval
== -EAGAIN
) && --retries
);
36 hid_err(hdev
, "wacom_get_report: ran out of retries "
37 "(last error = %d)\n", retval
);
42 static int wacom_set_report(struct hid_device
*hdev
, u8 type
, u8
*buf
,
43 size_t size
, unsigned int retries
)
48 retval
= hid_hw_raw_request(hdev
, buf
[0], buf
, size
, type
,
50 } while ((retval
== -ETIMEDOUT
|| retval
== -EAGAIN
) && --retries
);
53 hid_err(hdev
, "wacom_set_report: ran out of retries "
54 "(last error = %d)\n", retval
);
59 static int wacom_raw_event(struct hid_device
*hdev
, struct hid_report
*report
,
60 u8
*raw_data
, int size
)
62 struct wacom
*wacom
= hid_get_drvdata(hdev
);
64 if (size
> WACOM_PKGLEN_MAX
)
67 memcpy(wacom
->wacom_wac
.data
, raw_data
, size
);
69 wacom_wac_irq(&wacom
->wacom_wac
, size
);
74 static int wacom_open(struct input_dev
*dev
)
76 struct wacom
*wacom
= input_get_drvdata(dev
);
78 return hid_hw_open(wacom
->hdev
);
81 static void wacom_close(struct input_dev
*dev
)
83 struct wacom
*wacom
= input_get_drvdata(dev
);
86 * wacom->hdev should never be null, but surprisingly, I had the case
87 * once while unplugging the Wacom Wireless Receiver.
90 hid_hw_close(wacom
->hdev
);
94 * Calculate the resolution of the X or Y axis using hidinput_calc_abs_res.
96 static int wacom_calc_hid_res(int logical_extents
, int physical_extents
,
97 unsigned unit
, int exponent
)
99 struct hid_field field
= {
100 .logical_maximum
= logical_extents
,
101 .physical_maximum
= physical_extents
,
103 .unit_exponent
= exponent
,
106 return hidinput_calc_abs_res(&field
, ABS_X
);
109 static void wacom_feature_mapping(struct hid_device
*hdev
,
110 struct hid_field
*field
, struct hid_usage
*usage
)
112 struct wacom
*wacom
= hid_get_drvdata(hdev
);
113 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
114 struct hid_data
*hid_data
= &wacom
->wacom_wac
.hid_data
;
115 unsigned int equivalent_usage
= wacom_equivalent_usage(usage
->hid
);
120 switch (equivalent_usage
) {
121 case HID_DG_CONTACTMAX
:
122 /* leave touch_max as is if predefined */
123 if (!features
->touch_max
) {
125 data
= kzalloc(2, GFP_KERNEL
);
128 data
[0] = field
->report
->id
;
129 ret
= wacom_get_report(hdev
, HID_FEATURE_REPORT
,
130 data
, 2, WAC_CMD_RETRIES
);
132 features
->touch_max
= data
[1];
134 features
->touch_max
= 16;
135 hid_warn(hdev
, "wacom_feature_mapping: "
136 "could not get HID_DG_CONTACTMAX, "
137 "defaulting to %d\n",
138 features
->touch_max
);
143 case HID_DG_INPUTMODE
:
144 /* Ignore if value index is out of bounds. */
145 if (usage
->usage_index
>= field
->report_count
) {
146 dev_err(&hdev
->dev
, "HID_DG_INPUTMODE out of range\n");
150 hid_data
->inputmode
= field
->report
->id
;
151 hid_data
->inputmode_index
= usage
->usage_index
;
154 case HID_UP_DIGITIZER
:
155 if (field
->report
->id
== 0x0B &&
156 (field
->application
== WACOM_HID_G9_PEN
||
157 field
->application
== WACOM_HID_G11_PEN
)) {
158 wacom
->wacom_wac
.mode_report
= field
->report
->id
;
159 wacom
->wacom_wac
.mode_value
= 0;
163 case WACOM_HID_WD_DATAMODE
:
164 wacom
->wacom_wac
.mode_report
= field
->report
->id
;
165 wacom
->wacom_wac
.mode_value
= 2;
168 case WACOM_HID_UP_G9
:
169 case WACOM_HID_UP_G11
:
170 if (field
->report
->id
== 0x03 &&
171 (field
->application
== WACOM_HID_G9_TOUCHSCREEN
||
172 field
->application
== WACOM_HID_G11_TOUCHSCREEN
)) {
173 wacom
->wacom_wac
.mode_report
= field
->report
->id
;
174 wacom
->wacom_wac
.mode_value
= 0;
177 case WACOM_HID_WD_OFFSETLEFT
:
178 case WACOM_HID_WD_OFFSETTOP
:
179 case WACOM_HID_WD_OFFSETRIGHT
:
180 case WACOM_HID_WD_OFFSETBOTTOM
:
182 n
= hid_report_len(field
->report
);
183 data
= hid_alloc_report_buf(field
->report
, GFP_KERNEL
);
186 data
[0] = field
->report
->id
;
187 ret
= wacom_get_report(hdev
, HID_FEATURE_REPORT
,
188 data
, n
, WAC_CMD_RETRIES
);
190 ret
= hid_report_raw_event(hdev
, HID_FEATURE_REPORT
,
193 hid_warn(hdev
, "%s: could not retrieve sensor offsets\n",
200 if (hdev
->vendor
== USB_VENDOR_ID_WACOM
&&
201 hdev
->product
== 0x4200 /* Dell Canvas 27 */ &&
202 field
->application
== HID_UP_MSVENDOR
) {
203 wacom
->wacom_wac
.mode_report
= field
->report
->id
;
204 wacom
->wacom_wac
.mode_value
= 2;
209 * Interface Descriptor of wacom devices can be incomplete and
210 * inconsistent so wacom_features table is used to store stylus
211 * device's packet lengths, various maximum values, and tablet
212 * resolution based on product ID's.
214 * For devices that contain 2 interfaces, wacom_features table is
215 * inaccurate for the touch interface. Since the Interface Descriptor
216 * for touch interfaces has pretty complete data, this function exists
217 * to query tablet for this missing information instead of hard coding in
218 * an additional table.
220 * A typical Interface Descriptor for a stylus will contain a
221 * boot mouse application collection that is not of interest and this
222 * function will ignore it.
224 * It also contains a digitizer application collection that also is not
225 * of interest since any information it contains would be duplicate
226 * of what is in wacom_features. Usually it defines a report of an array
227 * of bytes that could be used as max length of the stylus packet returned.
228 * If it happens to define a Digitizer-Stylus Physical Collection then
229 * the X and Y logical values contain valid data but it is ignored.
231 * A typical Interface Descriptor for a touch interface will contain a
232 * Digitizer-Finger Physical Collection which will define both logical
233 * X/Y maximum as well as the physical size of tablet. Since touch
234 * interfaces haven't supported pressure or distance, this is enough
235 * information to override invalid values in the wacom_features table.
237 * Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful
238 * data. We deal with them after returning from this function.
240 static void wacom_usage_mapping(struct hid_device
*hdev
,
241 struct hid_field
*field
, struct hid_usage
*usage
)
243 struct wacom
*wacom
= hid_get_drvdata(hdev
);
244 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
245 bool finger
= WACOM_FINGER_FIELD(field
);
246 bool pen
= WACOM_PEN_FIELD(field
);
249 * Requiring Stylus Usage will ignore boot mouse
250 * X/Y values and some cases of invalid Digitizer X/Y
251 * values commonly reported.
254 features
->device_type
|= WACOM_DEVICETYPE_PEN
;
256 features
->device_type
|= WACOM_DEVICETYPE_TOUCH
;
261 * Bamboo models do not support HID_DG_CONTACTMAX.
262 * And, Bamboo Pen only descriptor contains touch.
264 if (features
->type
> BAMBOO_PT
) {
265 /* ISDv4 touch devices at least supports one touch point */
266 if (finger
&& !features
->touch_max
)
267 features
->touch_max
= 1;
271 * ISDv4 devices which predate HID's adoption of the
272 * HID_DG_BARELSWITCH2 usage use 0x000D0000 in its
273 * position instead. We can accurately detect if a
274 * usage with that value should be HID_DG_BARRELSWITCH2
275 * based on the surrounding usages, which have remained
276 * constant across generations.
278 if (features
->type
== HID_GENERIC
&&
279 usage
->hid
== 0x000D0000 &&
280 field
->application
== HID_DG_PEN
&&
281 field
->physical
== HID_DG_STYLUS
) {
282 int i
= usage
->usage_index
;
284 if (i
-4 >= 0 && i
+1 < field
->maxusage
&&
285 field
->usage
[i
-4].hid
== HID_DG_TIPSWITCH
&&
286 field
->usage
[i
-3].hid
== HID_DG_BARRELSWITCH
&&
287 field
->usage
[i
-2].hid
== HID_DG_ERASER
&&
288 field
->usage
[i
-1].hid
== HID_DG_INVERT
&&
289 field
->usage
[i
+1].hid
== HID_DG_INRANGE
) {
290 usage
->hid
= HID_DG_BARRELSWITCH2
;
294 /* 2nd-generation Intuos Pro Large has incorrect Y maximum */
295 if (hdev
->vendor
== USB_VENDOR_ID_WACOM
&&
296 hdev
->product
== 0x0358 &&
297 WACOM_PEN_FIELD(field
) &&
298 wacom_equivalent_usage(usage
->hid
) == HID_GD_Y
) {
299 field
->logical_maximum
= 43200;
302 switch (usage
->hid
) {
304 features
->x_max
= field
->logical_maximum
;
306 features
->x_phy
= field
->physical_maximum
;
307 if ((features
->type
!= BAMBOO_PT
) &&
308 (features
->type
!= BAMBOO_TOUCH
)) {
309 features
->unit
= field
->unit
;
310 features
->unitExpo
= field
->unit_exponent
;
315 features
->y_max
= field
->logical_maximum
;
317 features
->y_phy
= field
->physical_maximum
;
318 if ((features
->type
!= BAMBOO_PT
) &&
319 (features
->type
!= BAMBOO_TOUCH
)) {
320 features
->unit
= field
->unit
;
321 features
->unitExpo
= field
->unit_exponent
;
325 case HID_DG_TIPPRESSURE
:
327 features
->pressure_max
= field
->logical_maximum
;
331 if (features
->type
== HID_GENERIC
)
332 wacom_wac_usage_mapping(hdev
, field
, usage
);
335 static void wacom_post_parse_hid(struct hid_device
*hdev
,
336 struct wacom_features
*features
)
338 struct wacom
*wacom
= hid_get_drvdata(hdev
);
339 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
341 if (features
->type
== HID_GENERIC
) {
342 /* Any last-minute generic device setup */
343 if (wacom_wac
->has_mode_change
) {
344 if (wacom_wac
->is_direct_mode
)
345 features
->device_type
|= WACOM_DEVICETYPE_DIRECT
;
347 features
->device_type
&= ~WACOM_DEVICETYPE_DIRECT
;
350 if (features
->touch_max
> 1) {
351 if (features
->device_type
& WACOM_DEVICETYPE_DIRECT
)
352 input_mt_init_slots(wacom_wac
->touch_input
,
353 wacom_wac
->features
.touch_max
,
356 input_mt_init_slots(wacom_wac
->touch_input
,
357 wacom_wac
->features
.touch_max
,
363 static void wacom_parse_hid(struct hid_device
*hdev
,
364 struct wacom_features
*features
)
366 struct hid_report_enum
*rep_enum
;
367 struct hid_report
*hreport
;
370 /* check features first */
371 rep_enum
= &hdev
->report_enum
[HID_FEATURE_REPORT
];
372 list_for_each_entry(hreport
, &rep_enum
->report_list
, list
) {
373 for (i
= 0; i
< hreport
->maxfield
; i
++) {
374 /* Ignore if report count is out of bounds. */
375 if (hreport
->field
[i
]->report_count
< 1)
378 for (j
= 0; j
< hreport
->field
[i
]->maxusage
; j
++) {
379 wacom_feature_mapping(hdev
, hreport
->field
[i
],
380 hreport
->field
[i
]->usage
+ j
);
385 /* now check the input usages */
386 rep_enum
= &hdev
->report_enum
[HID_INPUT_REPORT
];
387 list_for_each_entry(hreport
, &rep_enum
->report_list
, list
) {
389 if (!hreport
->maxfield
)
392 for (i
= 0; i
< hreport
->maxfield
; i
++)
393 for (j
= 0; j
< hreport
->field
[i
]->maxusage
; j
++)
394 wacom_usage_mapping(hdev
, hreport
->field
[i
],
395 hreport
->field
[i
]->usage
+ j
);
398 wacom_post_parse_hid(hdev
, features
);
401 static int wacom_hid_set_device_mode(struct hid_device
*hdev
)
403 struct wacom
*wacom
= hid_get_drvdata(hdev
);
404 struct hid_data
*hid_data
= &wacom
->wacom_wac
.hid_data
;
405 struct hid_report
*r
;
406 struct hid_report_enum
*re
;
408 if (hid_data
->inputmode
< 0)
411 re
= &(hdev
->report_enum
[HID_FEATURE_REPORT
]);
412 r
= re
->report_id_hash
[hid_data
->inputmode
];
414 r
->field
[0]->value
[hid_data
->inputmode_index
] = 2;
415 hid_hw_request(hdev
, r
, HID_REQ_SET_REPORT
);
420 static int wacom_set_device_mode(struct hid_device
*hdev
,
421 struct wacom_wac
*wacom_wac
)
424 struct hid_report
*r
;
425 struct hid_report_enum
*re
;
427 int error
= -ENOMEM
, limit
= 0;
429 if (wacom_wac
->mode_report
< 0)
432 re
= &(hdev
->report_enum
[HID_FEATURE_REPORT
]);
433 r
= re
->report_id_hash
[wacom_wac
->mode_report
];
437 rep_data
= hid_alloc_report_buf(r
, GFP_KERNEL
);
441 length
= hid_report_len(r
);
444 rep_data
[0] = wacom_wac
->mode_report
;
445 rep_data
[1] = wacom_wac
->mode_value
;
447 error
= wacom_set_report(hdev
, HID_FEATURE_REPORT
, rep_data
,
450 error
= wacom_get_report(hdev
, HID_FEATURE_REPORT
,
451 rep_data
, length
, 1);
452 } while (error
>= 0 &&
453 rep_data
[1] != wacom_wac
->mode_report
&&
454 limit
++ < WAC_MSG_RETRIES
);
458 return error
< 0 ? error
: 0;
461 static int wacom_bt_query_tablet_data(struct hid_device
*hdev
, u8 speed
,
462 struct wacom_features
*features
)
464 struct wacom
*wacom
= hid_get_drvdata(hdev
);
468 switch (features
->type
) {
472 ret
= wacom_set_report(hdev
, HID_FEATURE_REPORT
, rep_data
, 2,
476 rep_data
[0] = speed
== 0 ? 0x05 : 0x06;
479 ret
= wacom_set_report(hdev
, HID_FEATURE_REPORT
,
483 wacom
->wacom_wac
.bt_high_speed
= speed
;
489 * Note that if the raw queries fail, it's not a hard failure
490 * and it is safe to continue
492 hid_warn(hdev
, "failed to poke device, command %d, err %d\n",
497 wacom
->wacom_wac
.bt_features
&= ~0x20;
499 wacom
->wacom_wac
.bt_features
|= 0x20;
502 rep_data
[1] = wacom
->wacom_wac
.bt_features
;
504 ret
= wacom_set_report(hdev
, HID_FEATURE_REPORT
, rep_data
, 2,
507 wacom
->wacom_wac
.bt_high_speed
= speed
;
515 * Switch the tablet into its most-capable mode. Wacom tablets are
516 * typically configured to power-up in a mode which sends mouse-like
517 * reports to the OS. To get absolute position, pressure data, etc.
518 * from the tablet, it is necessary to switch the tablet out of this
519 * mode and into one which sends the full range of tablet data.
521 static int _wacom_query_tablet_data(struct wacom
*wacom
)
523 struct hid_device
*hdev
= wacom
->hdev
;
524 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
525 struct wacom_features
*features
= &wacom_wac
->features
;
527 if (hdev
->bus
== BUS_BLUETOOTH
)
528 return wacom_bt_query_tablet_data(hdev
, 1, features
);
530 if (features
->type
!= HID_GENERIC
) {
531 if (features
->device_type
& WACOM_DEVICETYPE_TOUCH
) {
532 if (features
->type
> TABLETPC
) {
533 /* MT Tablet PC touch */
534 wacom_wac
->mode_report
= 3;
535 wacom_wac
->mode_value
= 4;
536 } else if (features
->type
== WACOM_24HDT
) {
537 wacom_wac
->mode_report
= 18;
538 wacom_wac
->mode_value
= 2;
539 } else if (features
->type
== WACOM_27QHDT
) {
540 wacom_wac
->mode_report
= 131;
541 wacom_wac
->mode_value
= 2;
542 } else if (features
->type
== BAMBOO_PAD
) {
543 wacom_wac
->mode_report
= 2;
544 wacom_wac
->mode_value
= 2;
546 } else if (features
->device_type
& WACOM_DEVICETYPE_PEN
) {
547 if (features
->type
<= BAMBOO_PT
) {
548 wacom_wac
->mode_report
= 2;
549 wacom_wac
->mode_value
= 2;
554 wacom_set_device_mode(hdev
, wacom_wac
);
556 if (features
->type
== HID_GENERIC
)
557 return wacom_hid_set_device_mode(hdev
);
562 static void wacom_retrieve_hid_descriptor(struct hid_device
*hdev
,
563 struct wacom_features
*features
)
565 struct wacom
*wacom
= hid_get_drvdata(hdev
);
566 struct usb_interface
*intf
= wacom
->intf
;
568 /* default features */
569 features
->x_fuzz
= 4;
570 features
->y_fuzz
= 4;
571 features
->pressure_fuzz
= 0;
572 features
->distance_fuzz
= 1;
573 features
->tilt_fuzz
= 1;
576 * The wireless device HID is basic and layout conflicts with
577 * other tablets (monitor and touch interface can look like pen).
578 * Skip the query for this type and modify defaults based on
581 if (features
->type
== WIRELESS
) {
582 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
== 0)
583 features
->device_type
= WACOM_DEVICETYPE_WL_MONITOR
;
585 features
->device_type
= WACOM_DEVICETYPE_NONE
;
589 wacom_parse_hid(hdev
, features
);
592 struct wacom_hdev_data
{
593 struct list_head list
;
595 struct hid_device
*dev
;
596 struct wacom_shared shared
;
599 static LIST_HEAD(wacom_udev_list
);
600 static DEFINE_MUTEX(wacom_udev_list_lock
);
602 static bool compare_device_paths(struct hid_device
*hdev_a
,
603 struct hid_device
*hdev_b
, char separator
)
605 int n1
= strrchr(hdev_a
->phys
, separator
) - hdev_a
->phys
;
606 int n2
= strrchr(hdev_b
->phys
, separator
) - hdev_b
->phys
;
608 if (n1
!= n2
|| n1
<= 0 || n2
<= 0)
611 return !strncmp(hdev_a
->phys
, hdev_b
->phys
, n1
);
614 static bool wacom_are_sibling(struct hid_device
*hdev
,
615 struct hid_device
*sibling
)
617 struct wacom
*wacom
= hid_get_drvdata(hdev
);
618 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
619 struct wacom
*sibling_wacom
= hid_get_drvdata(sibling
);
620 struct wacom_features
*sibling_features
= &sibling_wacom
->wacom_wac
.features
;
621 __u32 oVid
= features
->oVid
? features
->oVid
: hdev
->vendor
;
622 __u32 oPid
= features
->oPid
? features
->oPid
: hdev
->product
;
624 /* The defined oVid/oPid must match that of the sibling */
625 if (features
->oVid
!= HID_ANY_ID
&& sibling
->vendor
!= oVid
)
627 if (features
->oPid
!= HID_ANY_ID
&& sibling
->product
!= oPid
)
631 * Devices with the same VID/PID must share the same physical
632 * device path, while those with different VID/PID must share
633 * the same physical parent device path.
635 if (hdev
->vendor
== sibling
->vendor
&& hdev
->product
== sibling
->product
) {
636 if (!compare_device_paths(hdev
, sibling
, '/'))
639 if (!compare_device_paths(hdev
, sibling
, '.'))
643 /* Skip the remaining heuristics unless you are a HID_GENERIC device */
644 if (features
->type
!= HID_GENERIC
)
648 * Direct-input devices may not be siblings of indirect-input
651 if ((features
->device_type
& WACOM_DEVICETYPE_DIRECT
) &&
652 !(sibling_features
->device_type
& WACOM_DEVICETYPE_DIRECT
))
656 * Indirect-input devices may not be siblings of direct-input
659 if (!(features
->device_type
& WACOM_DEVICETYPE_DIRECT
) &&
660 (sibling_features
->device_type
& WACOM_DEVICETYPE_DIRECT
))
663 /* Pen devices may only be siblings of touch devices */
664 if ((features
->device_type
& WACOM_DEVICETYPE_PEN
) &&
665 !(sibling_features
->device_type
& WACOM_DEVICETYPE_TOUCH
))
668 /* Touch devices may only be siblings of pen devices */
669 if ((features
->device_type
& WACOM_DEVICETYPE_TOUCH
) &&
670 !(sibling_features
->device_type
& WACOM_DEVICETYPE_PEN
))
674 * No reason could be found for these two devices to NOT be
675 * siblings, so there's a good chance they ARE siblings
680 static struct wacom_hdev_data
*wacom_get_hdev_data(struct hid_device
*hdev
)
682 struct wacom_hdev_data
*data
;
684 /* Try to find an already-probed interface from the same device */
685 list_for_each_entry(data
, &wacom_udev_list
, list
) {
686 if (compare_device_paths(hdev
, data
->dev
, '/')) {
687 kref_get(&data
->kref
);
692 /* Fallback to finding devices that appear to be "siblings" */
693 list_for_each_entry(data
, &wacom_udev_list
, list
) {
694 if (wacom_are_sibling(hdev
, data
->dev
)) {
695 kref_get(&data
->kref
);
703 static void wacom_release_shared_data(struct kref
*kref
)
705 struct wacom_hdev_data
*data
=
706 container_of(kref
, struct wacom_hdev_data
, kref
);
708 mutex_lock(&wacom_udev_list_lock
);
709 list_del(&data
->list
);
710 mutex_unlock(&wacom_udev_list_lock
);
715 static void wacom_remove_shared_data(void *res
)
717 struct wacom
*wacom
= res
;
718 struct wacom_hdev_data
*data
;
719 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
721 if (wacom_wac
->shared
) {
722 data
= container_of(wacom_wac
->shared
, struct wacom_hdev_data
,
725 if (wacom_wac
->shared
->touch
== wacom
->hdev
)
726 wacom_wac
->shared
->touch
= NULL
;
727 else if (wacom_wac
->shared
->pen
== wacom
->hdev
)
728 wacom_wac
->shared
->pen
= NULL
;
730 kref_put(&data
->kref
, wacom_release_shared_data
);
731 wacom_wac
->shared
= NULL
;
735 static int wacom_add_shared_data(struct hid_device
*hdev
)
737 struct wacom
*wacom
= hid_get_drvdata(hdev
);
738 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
739 struct wacom_hdev_data
*data
;
742 mutex_lock(&wacom_udev_list_lock
);
744 data
= wacom_get_hdev_data(hdev
);
746 data
= kzalloc(sizeof(struct wacom_hdev_data
), GFP_KERNEL
);
752 kref_init(&data
->kref
);
754 list_add_tail(&data
->list
, &wacom_udev_list
);
757 wacom_wac
->shared
= &data
->shared
;
759 retval
= devm_add_action(&hdev
->dev
, wacom_remove_shared_data
, wacom
);
761 mutex_unlock(&wacom_udev_list_lock
);
762 wacom_remove_shared_data(wacom
);
766 if (wacom_wac
->features
.device_type
& WACOM_DEVICETYPE_TOUCH
)
767 wacom_wac
->shared
->touch
= hdev
;
768 else if (wacom_wac
->features
.device_type
& WACOM_DEVICETYPE_PEN
)
769 wacom_wac
->shared
->pen
= hdev
;
772 mutex_unlock(&wacom_udev_list_lock
);
776 static int wacom_led_control(struct wacom
*wacom
)
780 unsigned char report_id
= WAC_CMD_LED_CONTROL
;
783 if (!wacom
->led
.groups
)
786 if (wacom
->wacom_wac
.features
.type
== REMOTE
)
789 if (wacom
->wacom_wac
.pid
) { /* wireless connected */
790 report_id
= WAC_CMD_WL_LED_CONTROL
;
793 else if (wacom
->wacom_wac
.features
.type
== INTUOSP2_BT
) {
794 report_id
= WAC_CMD_WL_INTUOSP2
;
797 buf
= kzalloc(buf_size
, GFP_KERNEL
);
801 if (wacom
->wacom_wac
.features
.type
== HID_GENERIC
) {
802 buf
[0] = WAC_CMD_LED_CONTROL_GENERIC
;
803 buf
[1] = wacom
->led
.llv
;
804 buf
[2] = wacom
->led
.groups
[0].select
& 0x03;
806 } else if ((wacom
->wacom_wac
.features
.type
>= INTUOS5S
&&
807 wacom
->wacom_wac
.features
.type
<= INTUOSPL
)) {
809 * Touch Ring and crop mark LED luminance may take on
810 * one of four values:
811 * 0 = Low; 1 = Medium; 2 = High; 3 = Off
813 int ring_led
= wacom
->led
.groups
[0].select
& 0x03;
814 int ring_lum
= (((wacom
->led
.llv
& 0x60) >> 5) - 1) & 0x03;
816 unsigned char led_bits
= (crop_lum
<< 4) | (ring_lum
<< 2) | (ring_led
);
819 if (wacom
->wacom_wac
.pid
) {
820 wacom_get_report(wacom
->hdev
, HID_FEATURE_REPORT
,
821 buf
, buf_size
, WAC_CMD_RETRIES
);
827 else if (wacom
->wacom_wac
.features
.type
== INTUOSP2_BT
) {
829 buf
[4] = 100; // Power Connection LED (ORANGE)
830 buf
[5] = 100; // BT Connection LED (BLUE)
831 buf
[6] = 100; // Paper Mode (RED?)
832 buf
[7] = 100; // Paper Mode (GREEN?)
833 buf
[8] = 100; // Paper Mode (BLUE?)
834 buf
[9] = wacom
->led
.llv
;
835 buf
[10] = wacom
->led
.groups
[0].select
& 0x03;
838 int led
= wacom
->led
.groups
[0].select
| 0x4;
840 if (wacom
->wacom_wac
.features
.type
== WACOM_21UX2
||
841 wacom
->wacom_wac
.features
.type
== WACOM_24HD
)
842 led
|= (wacom
->led
.groups
[1].select
<< 4) | 0x40;
846 buf
[2] = wacom
->led
.llv
;
847 buf
[3] = wacom
->led
.hlv
;
848 buf
[4] = wacom
->led
.img_lum
;
851 retval
= wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
, buf
, buf_size
,
858 static int wacom_led_putimage(struct wacom
*wacom
, int button_id
, u8 xfer_id
,
859 const unsigned len
, const void *img
)
863 const unsigned chunk_len
= len
/ 4; /* 4 chunks are needed to be sent */
865 buf
= kzalloc(chunk_len
+ 3 , GFP_KERNEL
);
869 /* Send 'start' command */
870 buf
[0] = WAC_CMD_ICON_START
;
872 retval
= wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
, buf
, 2,
878 buf
[1] = button_id
& 0x07;
879 for (i
= 0; i
< 4; i
++) {
881 memcpy(buf
+ 3, img
+ i
* chunk_len
, chunk_len
);
883 retval
= wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
,
884 buf
, chunk_len
+ 3, WAC_CMD_RETRIES
);
890 buf
[0] = WAC_CMD_ICON_START
;
892 wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
, buf
, 2,
900 static ssize_t
wacom_led_select_store(struct device
*dev
, int set_id
,
901 const char *buf
, size_t count
)
903 struct hid_device
*hdev
= to_hid_device(dev
);
904 struct wacom
*wacom
= hid_get_drvdata(hdev
);
908 err
= kstrtouint(buf
, 10, &id
);
912 mutex_lock(&wacom
->lock
);
914 wacom
->led
.groups
[set_id
].select
= id
& 0x3;
915 err
= wacom_led_control(wacom
);
917 mutex_unlock(&wacom
->lock
);
919 return err
< 0 ? err
: count
;
922 #define DEVICE_LED_SELECT_ATTR(SET_ID) \
923 static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
924 struct device_attribute *attr, const char *buf, size_t count) \
926 return wacom_led_select_store(dev, SET_ID, buf, count); \
928 static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
929 struct device_attribute *attr, char *buf) \
931 struct hid_device *hdev = to_hid_device(dev);\
932 struct wacom *wacom = hid_get_drvdata(hdev); \
933 return scnprintf(buf, PAGE_SIZE, "%d\n", \
934 wacom->led.groups[SET_ID].select); \
936 static DEVICE_ATTR(status_led##SET_ID##_select, DEV_ATTR_RW_PERM, \
937 wacom_led##SET_ID##_select_show, \
938 wacom_led##SET_ID##_select_store)
940 DEVICE_LED_SELECT_ATTR(0);
941 DEVICE_LED_SELECT_ATTR(1);
943 static ssize_t
wacom_luminance_store(struct wacom
*wacom
, u8
*dest
,
944 const char *buf
, size_t count
)
949 err
= kstrtouint(buf
, 10, &value
);
953 mutex_lock(&wacom
->lock
);
955 *dest
= value
& 0x7f;
956 err
= wacom_led_control(wacom
);
958 mutex_unlock(&wacom
->lock
);
960 return err
< 0 ? err
: count
;
963 #define DEVICE_LUMINANCE_ATTR(name, field) \
964 static ssize_t wacom_##name##_luminance_store(struct device *dev, \
965 struct device_attribute *attr, const char *buf, size_t count) \
967 struct hid_device *hdev = to_hid_device(dev);\
968 struct wacom *wacom = hid_get_drvdata(hdev); \
970 return wacom_luminance_store(wacom, &wacom->led.field, \
973 static ssize_t wacom_##name##_luminance_show(struct device *dev, \
974 struct device_attribute *attr, char *buf) \
976 struct wacom *wacom = dev_get_drvdata(dev); \
977 return scnprintf(buf, PAGE_SIZE, "%d\n", wacom->led.field); \
979 static DEVICE_ATTR(name##_luminance, DEV_ATTR_RW_PERM, \
980 wacom_##name##_luminance_show, \
981 wacom_##name##_luminance_store)
983 DEVICE_LUMINANCE_ATTR(status0
, llv
);
984 DEVICE_LUMINANCE_ATTR(status1
, hlv
);
985 DEVICE_LUMINANCE_ATTR(buttons
, img_lum
);
987 static ssize_t
wacom_button_image_store(struct device
*dev
, int button_id
,
988 const char *buf
, size_t count
)
990 struct hid_device
*hdev
= to_hid_device(dev
);
991 struct wacom
*wacom
= hid_get_drvdata(hdev
);
996 if (hdev
->bus
== BUS_BLUETOOTH
) {
998 xfer_id
= WAC_CMD_ICON_BT_XFER
;
1001 xfer_id
= WAC_CMD_ICON_XFER
;
1007 mutex_lock(&wacom
->lock
);
1009 err
= wacom_led_putimage(wacom
, button_id
, xfer_id
, len
, buf
);
1011 mutex_unlock(&wacom
->lock
);
1013 return err
< 0 ? err
: count
;
1016 #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
1017 static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
1018 struct device_attribute *attr, const char *buf, size_t count) \
1020 return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
1022 static DEVICE_ATTR(button##BUTTON_ID##_rawimg, DEV_ATTR_WO_PERM, \
1023 NULL, wacom_btnimg##BUTTON_ID##_store)
1025 DEVICE_BTNIMG_ATTR(0);
1026 DEVICE_BTNIMG_ATTR(1);
1027 DEVICE_BTNIMG_ATTR(2);
1028 DEVICE_BTNIMG_ATTR(3);
1029 DEVICE_BTNIMG_ATTR(4);
1030 DEVICE_BTNIMG_ATTR(5);
1031 DEVICE_BTNIMG_ATTR(6);
1032 DEVICE_BTNIMG_ATTR(7);
1034 static struct attribute
*cintiq_led_attrs
[] = {
1035 &dev_attr_status_led0_select
.attr
,
1036 &dev_attr_status_led1_select
.attr
,
1040 static struct attribute_group cintiq_led_attr_group
= {
1041 .name
= "wacom_led",
1042 .attrs
= cintiq_led_attrs
,
1045 static struct attribute
*intuos4_led_attrs
[] = {
1046 &dev_attr_status0_luminance
.attr
,
1047 &dev_attr_status1_luminance
.attr
,
1048 &dev_attr_status_led0_select
.attr
,
1049 &dev_attr_buttons_luminance
.attr
,
1050 &dev_attr_button0_rawimg
.attr
,
1051 &dev_attr_button1_rawimg
.attr
,
1052 &dev_attr_button2_rawimg
.attr
,
1053 &dev_attr_button3_rawimg
.attr
,
1054 &dev_attr_button4_rawimg
.attr
,
1055 &dev_attr_button5_rawimg
.attr
,
1056 &dev_attr_button6_rawimg
.attr
,
1057 &dev_attr_button7_rawimg
.attr
,
1061 static struct attribute_group intuos4_led_attr_group
= {
1062 .name
= "wacom_led",
1063 .attrs
= intuos4_led_attrs
,
1066 static struct attribute
*intuos5_led_attrs
[] = {
1067 &dev_attr_status0_luminance
.attr
,
1068 &dev_attr_status_led0_select
.attr
,
1072 static struct attribute_group intuos5_led_attr_group
= {
1073 .name
= "wacom_led",
1074 .attrs
= intuos5_led_attrs
,
1077 static struct attribute
*generic_led_attrs
[] = {
1078 &dev_attr_status0_luminance
.attr
,
1079 &dev_attr_status_led0_select
.attr
,
1083 static struct attribute_group generic_led_attr_group
= {
1084 .name
= "wacom_led",
1085 .attrs
= generic_led_attrs
,
1088 struct wacom_sysfs_group_devres
{
1089 struct attribute_group
*group
;
1090 struct kobject
*root
;
1093 static void wacom_devm_sysfs_group_release(struct device
*dev
, void *res
)
1095 struct wacom_sysfs_group_devres
*devres
= res
;
1096 struct kobject
*kobj
= devres
->root
;
1098 dev_dbg(dev
, "%s: dropping reference to %s\n",
1099 __func__
, devres
->group
->name
);
1100 sysfs_remove_group(kobj
, devres
->group
);
1103 static int __wacom_devm_sysfs_create_group(struct wacom
*wacom
,
1104 struct kobject
*root
,
1105 struct attribute_group
*group
)
1107 struct wacom_sysfs_group_devres
*devres
;
1110 devres
= devres_alloc(wacom_devm_sysfs_group_release
,
1111 sizeof(struct wacom_sysfs_group_devres
),
1116 devres
->group
= group
;
1117 devres
->root
= root
;
1119 error
= sysfs_create_group(devres
->root
, group
);
1121 devres_free(devres
);
1125 devres_add(&wacom
->hdev
->dev
, devres
);
1130 static int wacom_devm_sysfs_create_group(struct wacom
*wacom
,
1131 struct attribute_group
*group
)
1133 return __wacom_devm_sysfs_create_group(wacom
, &wacom
->hdev
->dev
.kobj
,
1137 enum led_brightness
wacom_leds_brightness_get(struct wacom_led
*led
)
1139 struct wacom
*wacom
= led
->wacom
;
1141 if (wacom
->led
.max_hlv
)
1142 return led
->hlv
* LED_FULL
/ wacom
->led
.max_hlv
;
1144 if (wacom
->led
.max_llv
)
1145 return led
->llv
* LED_FULL
/ wacom
->led
.max_llv
;
1147 /* device doesn't support brightness tuning */
1151 static enum led_brightness
__wacom_led_brightness_get(struct led_classdev
*cdev
)
1153 struct wacom_led
*led
= container_of(cdev
, struct wacom_led
, cdev
);
1154 struct wacom
*wacom
= led
->wacom
;
1156 if (wacom
->led
.groups
[led
->group
].select
!= led
->id
)
1159 return wacom_leds_brightness_get(led
);
1162 static int wacom_led_brightness_set(struct led_classdev
*cdev
,
1163 enum led_brightness brightness
)
1165 struct wacom_led
*led
= container_of(cdev
, struct wacom_led
, cdev
);
1166 struct wacom
*wacom
= led
->wacom
;
1169 mutex_lock(&wacom
->lock
);
1171 if (!wacom
->led
.groups
|| (brightness
== LED_OFF
&&
1172 wacom
->led
.groups
[led
->group
].select
!= led
->id
)) {
1177 led
->llv
= wacom
->led
.llv
= wacom
->led
.max_llv
* brightness
/ LED_FULL
;
1178 led
->hlv
= wacom
->led
.hlv
= wacom
->led
.max_hlv
* brightness
/ LED_FULL
;
1180 wacom
->led
.groups
[led
->group
].select
= led
->id
;
1182 error
= wacom_led_control(wacom
);
1185 mutex_unlock(&wacom
->lock
);
1190 static void wacom_led_readonly_brightness_set(struct led_classdev
*cdev
,
1191 enum led_brightness brightness
)
1195 static int wacom_led_register_one(struct device
*dev
, struct wacom
*wacom
,
1196 struct wacom_led
*led
, unsigned int group
,
1197 unsigned int id
, bool read_only
)
1202 name
= devm_kasprintf(dev
, GFP_KERNEL
,
1211 led
->trigger
.name
= name
;
1212 error
= devm_led_trigger_register(dev
, &led
->trigger
);
1214 hid_err(wacom
->hdev
,
1215 "failed to register LED trigger %s: %d\n",
1216 led
->cdev
.name
, error
);
1224 led
->llv
= wacom
->led
.llv
;
1225 led
->hlv
= wacom
->led
.hlv
;
1226 led
->cdev
.name
= name
;
1227 led
->cdev
.max_brightness
= LED_FULL
;
1228 led
->cdev
.flags
= LED_HW_PLUGGABLE
;
1229 led
->cdev
.brightness_get
= __wacom_led_brightness_get
;
1231 led
->cdev
.brightness_set_blocking
= wacom_led_brightness_set
;
1232 led
->cdev
.default_trigger
= led
->cdev
.name
;
1234 led
->cdev
.brightness_set
= wacom_led_readonly_brightness_set
;
1237 error
= devm_led_classdev_register(dev
, &led
->cdev
);
1239 hid_err(wacom
->hdev
,
1240 "failed to register LED %s: %d\n",
1241 led
->cdev
.name
, error
);
1242 led
->cdev
.name
= NULL
;
1249 static void wacom_led_groups_release_one(void *data
)
1251 struct wacom_group_leds
*group
= data
;
1253 devres_release_group(group
->dev
, group
);
1256 static int wacom_led_groups_alloc_and_register_one(struct device
*dev
,
1257 struct wacom
*wacom
,
1258 int group_id
, int count
,
1261 struct wacom_led
*leds
;
1264 if (group_id
>= wacom
->led
.count
|| count
<= 0)
1267 if (!devres_open_group(dev
, &wacom
->led
.groups
[group_id
], GFP_KERNEL
))
1270 leds
= devm_kzalloc(dev
, sizeof(struct wacom_led
) * count
, GFP_KERNEL
);
1276 wacom
->led
.groups
[group_id
].leds
= leds
;
1277 wacom
->led
.groups
[group_id
].count
= count
;
1279 for (i
= 0; i
< count
; i
++) {
1280 error
= wacom_led_register_one(dev
, wacom
, &leds
[i
],
1281 group_id
, i
, read_only
);
1286 wacom
->led
.groups
[group_id
].dev
= dev
;
1288 devres_close_group(dev
, &wacom
->led
.groups
[group_id
]);
1291 * There is a bug (?) in devm_led_classdev_register() in which its
1292 * increments the refcount of the parent. If the parent is an input
1293 * device, that means the ref count never reaches 0 when
1294 * devm_input_device_release() gets called.
1295 * This means that the LEDs are still there after disconnect.
1296 * Manually force the release of the group so that the leds are released
1297 * once we are done using them.
1299 error
= devm_add_action_or_reset(&wacom
->hdev
->dev
,
1300 wacom_led_groups_release_one
,
1301 &wacom
->led
.groups
[group_id
]);
1308 devres_release_group(dev
, &wacom
->led
.groups
[group_id
]);
1312 struct wacom_led
*wacom_led_find(struct wacom
*wacom
, unsigned int group_id
,
1315 struct wacom_group_leds
*group
;
1317 if (group_id
>= wacom
->led
.count
)
1320 group
= &wacom
->led
.groups
[group_id
];
1327 return &group
->leds
[id
];
1331 * wacom_led_next: gives the next available led with a wacom trigger.
1333 * returns the next available struct wacom_led which has its default trigger
1334 * or the current one if none is available.
1336 struct wacom_led
*wacom_led_next(struct wacom
*wacom
, struct wacom_led
*cur
)
1338 struct wacom_led
*next_led
;
1348 next_led
= wacom_led_find(wacom
, group
, ++next
);
1349 if (!next_led
|| next_led
== cur
)
1351 } while (next_led
->cdev
.trigger
!= &next_led
->trigger
);
1356 static void wacom_led_groups_release(void *data
)
1358 struct wacom
*wacom
= data
;
1360 wacom
->led
.groups
= NULL
;
1361 wacom
->led
.count
= 0;
1364 static int wacom_led_groups_allocate(struct wacom
*wacom
, int count
)
1366 struct device
*dev
= &wacom
->hdev
->dev
;
1367 struct wacom_group_leds
*groups
;
1370 groups
= devm_kzalloc(dev
, sizeof(struct wacom_group_leds
) * count
,
1375 error
= devm_add_action_or_reset(dev
, wacom_led_groups_release
, wacom
);
1379 wacom
->led
.groups
= groups
;
1380 wacom
->led
.count
= count
;
1385 static int wacom_leds_alloc_and_register(struct wacom
*wacom
, int group_count
,
1386 int led_per_group
, bool read_only
)
1391 if (!wacom
->wacom_wac
.pad_input
)
1394 dev
= &wacom
->wacom_wac
.pad_input
->dev
;
1396 error
= wacom_led_groups_allocate(wacom
, group_count
);
1400 for (i
= 0; i
< group_count
; i
++) {
1401 error
= wacom_led_groups_alloc_and_register_one(dev
, wacom
, i
,
1411 int wacom_initialize_leds(struct wacom
*wacom
)
1415 if (!(wacom
->wacom_wac
.features
.device_type
& WACOM_DEVICETYPE_PAD
))
1418 /* Initialize default values */
1419 switch (wacom
->wacom_wac
.features
.type
) {
1421 if (!wacom
->generic_has_leds
)
1423 wacom
->led
.llv
= 100;
1424 wacom
->led
.max_llv
= 100;
1426 error
= wacom_leds_alloc_and_register(wacom
, 1, 4, false);
1428 hid_err(wacom
->hdev
,
1429 "cannot create leds err: %d\n", error
);
1433 error
= wacom_devm_sysfs_create_group(wacom
,
1434 &generic_led_attr_group
);
1441 wacom
->led
.llv
= 10;
1442 wacom
->led
.hlv
= 20;
1443 wacom
->led
.max_llv
= 127;
1444 wacom
->led
.max_hlv
= 127;
1445 wacom
->led
.img_lum
= 10;
1447 error
= wacom_leds_alloc_and_register(wacom
, 1, 4, false);
1449 hid_err(wacom
->hdev
,
1450 "cannot create leds err: %d\n", error
);
1454 error
= wacom_devm_sysfs_create_group(wacom
,
1455 &intuos4_led_attr_group
);
1462 wacom
->led
.img_lum
= 0;
1464 error
= wacom_leds_alloc_and_register(wacom
, 2, 4, false);
1466 hid_err(wacom
->hdev
,
1467 "cannot create leds err: %d\n", error
);
1471 error
= wacom_devm_sysfs_create_group(wacom
,
1472 &cintiq_led_attr_group
);
1481 wacom
->led
.llv
= 32;
1482 wacom
->led
.max_llv
= 96;
1484 error
= wacom_leds_alloc_and_register(wacom
, 1, 4, false);
1486 hid_err(wacom
->hdev
,
1487 "cannot create leds err: %d\n", error
);
1491 error
= wacom_devm_sysfs_create_group(wacom
,
1492 &intuos5_led_attr_group
);
1496 wacom
->led
.llv
= 50;
1497 wacom
->led
.max_llv
= 100;
1498 error
= wacom_leds_alloc_and_register(wacom
, 1, 4, false);
1500 hid_err(wacom
->hdev
,
1501 "cannot create leds err: %d\n", error
);
1507 wacom
->led
.llv
= 255;
1508 wacom
->led
.max_llv
= 255;
1509 error
= wacom_led_groups_allocate(wacom
, 5);
1511 hid_err(wacom
->hdev
,
1512 "cannot create leds err: %d\n", error
);
1522 hid_err(wacom
->hdev
,
1523 "cannot create sysfs group err: %d\n", error
);
1530 static void wacom_init_work(struct work_struct
*work
)
1532 struct wacom
*wacom
= container_of(work
, struct wacom
, init_work
.work
);
1534 _wacom_query_tablet_data(wacom
);
1535 wacom_led_control(wacom
);
1538 static void wacom_query_tablet_data(struct wacom
*wacom
)
1540 schedule_delayed_work(&wacom
->init_work
, msecs_to_jiffies(1000));
1543 static enum power_supply_property wacom_battery_props
[] = {
1544 POWER_SUPPLY_PROP_MODEL_NAME
,
1545 POWER_SUPPLY_PROP_PRESENT
,
1546 POWER_SUPPLY_PROP_STATUS
,
1547 POWER_SUPPLY_PROP_SCOPE
,
1548 POWER_SUPPLY_PROP_CAPACITY
1551 static int wacom_battery_get_property(struct power_supply
*psy
,
1552 enum power_supply_property psp
,
1553 union power_supply_propval
*val
)
1555 struct wacom_battery
*battery
= power_supply_get_drvdata(psy
);
1559 case POWER_SUPPLY_PROP_MODEL_NAME
:
1560 val
->strval
= battery
->wacom
->wacom_wac
.name
;
1562 case POWER_SUPPLY_PROP_PRESENT
:
1563 val
->intval
= battery
->bat_connected
;
1565 case POWER_SUPPLY_PROP_SCOPE
:
1566 val
->intval
= POWER_SUPPLY_SCOPE_DEVICE
;
1568 case POWER_SUPPLY_PROP_CAPACITY
:
1569 val
->intval
= battery
->battery_capacity
;
1571 case POWER_SUPPLY_PROP_STATUS
:
1572 if (battery
->bat_status
!= WACOM_POWER_SUPPLY_STATUS_AUTO
)
1573 val
->intval
= battery
->bat_status
;
1574 else if (battery
->bat_charging
)
1575 val
->intval
= POWER_SUPPLY_STATUS_CHARGING
;
1576 else if (battery
->battery_capacity
== 100 &&
1577 battery
->ps_connected
)
1578 val
->intval
= POWER_SUPPLY_STATUS_FULL
;
1579 else if (battery
->ps_connected
)
1580 val
->intval
= POWER_SUPPLY_STATUS_NOT_CHARGING
;
1582 val
->intval
= POWER_SUPPLY_STATUS_DISCHARGING
;
1592 static int __wacom_initialize_battery(struct wacom
*wacom
,
1593 struct wacom_battery
*battery
)
1595 static atomic_t battery_no
= ATOMIC_INIT(0);
1596 struct device
*dev
= &wacom
->hdev
->dev
;
1597 struct power_supply_config psy_cfg
= { .drv_data
= battery
, };
1598 struct power_supply
*ps_bat
;
1599 struct power_supply_desc
*bat_desc
= &battery
->bat_desc
;
1603 if (!devres_open_group(dev
, bat_desc
, GFP_KERNEL
))
1606 battery
->wacom
= wacom
;
1608 n
= atomic_inc_return(&battery_no
) - 1;
1610 bat_desc
->properties
= wacom_battery_props
;
1611 bat_desc
->num_properties
= ARRAY_SIZE(wacom_battery_props
);
1612 bat_desc
->get_property
= wacom_battery_get_property
;
1613 sprintf(battery
->bat_name
, "wacom_battery_%ld", n
);
1614 bat_desc
->name
= battery
->bat_name
;
1615 bat_desc
->type
= POWER_SUPPLY_TYPE_USB
;
1616 bat_desc
->use_for_apm
= 0;
1618 ps_bat
= devm_power_supply_register(dev
, bat_desc
, &psy_cfg
);
1619 if (IS_ERR(ps_bat
)) {
1620 error
= PTR_ERR(ps_bat
);
1624 power_supply_powers(ps_bat
, &wacom
->hdev
->dev
);
1626 battery
->battery
= ps_bat
;
1628 devres_close_group(dev
, bat_desc
);
1632 devres_release_group(dev
, bat_desc
);
1636 static int wacom_initialize_battery(struct wacom
*wacom
)
1638 if (wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_BATTERY
)
1639 return __wacom_initialize_battery(wacom
, &wacom
->battery
);
1644 static void wacom_destroy_battery(struct wacom
*wacom
)
1646 if (wacom
->battery
.battery
) {
1647 devres_release_group(&wacom
->hdev
->dev
,
1648 &wacom
->battery
.bat_desc
);
1649 wacom
->battery
.battery
= NULL
;
1653 static ssize_t
wacom_show_speed(struct device
*dev
,
1654 struct device_attribute
1657 struct hid_device
*hdev
= to_hid_device(dev
);
1658 struct wacom
*wacom
= hid_get_drvdata(hdev
);
1660 return snprintf(buf
, PAGE_SIZE
, "%i\n", wacom
->wacom_wac
.bt_high_speed
);
1663 static ssize_t
wacom_store_speed(struct device
*dev
,
1664 struct device_attribute
*attr
,
1665 const char *buf
, size_t count
)
1667 struct hid_device
*hdev
= to_hid_device(dev
);
1668 struct wacom
*wacom
= hid_get_drvdata(hdev
);
1671 if (kstrtou8(buf
, 0, &new_speed
))
1674 if (new_speed
!= 0 && new_speed
!= 1)
1677 wacom_bt_query_tablet_data(hdev
, new_speed
, &wacom
->wacom_wac
.features
);
1682 static DEVICE_ATTR(speed
, DEV_ATTR_RW_PERM
,
1683 wacom_show_speed
, wacom_store_speed
);
1686 static ssize_t
wacom_show_remote_mode(struct kobject
*kobj
,
1687 struct kobj_attribute
*kattr
,
1688 char *buf
, int index
)
1690 struct device
*dev
= kobj_to_dev(kobj
->parent
);
1691 struct hid_device
*hdev
= to_hid_device(dev
);
1692 struct wacom
*wacom
= hid_get_drvdata(hdev
);
1695 mode
= wacom
->led
.groups
[index
].select
;
1696 return sprintf(buf
, "%d\n", mode
< 3 ? mode
: -1);
1699 #define DEVICE_EKR_ATTR_GROUP(SET_ID) \
1700 static ssize_t wacom_show_remote##SET_ID##_mode(struct kobject *kobj, \
1701 struct kobj_attribute *kattr, char *buf) \
1703 return wacom_show_remote_mode(kobj, kattr, buf, SET_ID); \
1705 static struct kobj_attribute remote##SET_ID##_mode_attr = { \
1706 .attr = {.name = "remote_mode", \
1707 .mode = DEV_ATTR_RO_PERM}, \
1708 .show = wacom_show_remote##SET_ID##_mode, \
1710 static struct attribute *remote##SET_ID##_serial_attrs[] = { \
1711 &remote##SET_ID##_mode_attr.attr, \
1714 static struct attribute_group remote##SET_ID##_serial_group = { \
1716 .attrs = remote##SET_ID##_serial_attrs, \
1719 DEVICE_EKR_ATTR_GROUP(0);
1720 DEVICE_EKR_ATTR_GROUP(1);
1721 DEVICE_EKR_ATTR_GROUP(2);
1722 DEVICE_EKR_ATTR_GROUP(3);
1723 DEVICE_EKR_ATTR_GROUP(4);
1725 static int wacom_remote_create_attr_group(struct wacom
*wacom
, __u32 serial
,
1729 struct wacom_remote
*remote
= wacom
->remote
;
1731 remote
->remotes
[index
].group
.name
= devm_kasprintf(&wacom
->hdev
->dev
,
1734 if (!remote
->remotes
[index
].group
.name
)
1737 error
= __wacom_devm_sysfs_create_group(wacom
, remote
->remote_dir
,
1738 &remote
->remotes
[index
].group
);
1740 remote
->remotes
[index
].group
.name
= NULL
;
1741 hid_err(wacom
->hdev
,
1742 "cannot create sysfs group err: %d\n", error
);
1749 static int wacom_cmd_unpair_remote(struct wacom
*wacom
, unsigned char selector
)
1751 const size_t buf_size
= 2;
1755 buf
= kzalloc(buf_size
, GFP_KERNEL
);
1759 buf
[0] = WAC_CMD_DELETE_PAIRING
;
1762 retval
= wacom_set_report(wacom
->hdev
, HID_OUTPUT_REPORT
, buf
,
1763 buf_size
, WAC_CMD_RETRIES
);
1769 static ssize_t
wacom_store_unpair_remote(struct kobject
*kobj
,
1770 struct kobj_attribute
*attr
,
1771 const char *buf
, size_t count
)
1773 unsigned char selector
= 0;
1774 struct device
*dev
= kobj_to_dev(kobj
->parent
);
1775 struct hid_device
*hdev
= to_hid_device(dev
);
1776 struct wacom
*wacom
= hid_get_drvdata(hdev
);
1779 if (!strncmp(buf
, "*\n", 2)) {
1780 selector
= WAC_CMD_UNPAIR_ALL
;
1782 hid_info(wacom
->hdev
, "remote: unrecognized unpair code: %s\n",
1787 mutex_lock(&wacom
->lock
);
1789 err
= wacom_cmd_unpair_remote(wacom
, selector
);
1790 mutex_unlock(&wacom
->lock
);
1792 return err
< 0 ? err
: count
;
1795 static struct kobj_attribute unpair_remote_attr
= {
1796 .attr
= {.name
= "unpair_remote", .mode
= 0200},
1797 .store
= wacom_store_unpair_remote
,
1800 static const struct attribute
*remote_unpair_attrs
[] = {
1801 &unpair_remote_attr
.attr
,
1805 static void wacom_remotes_destroy(void *data
)
1807 struct wacom
*wacom
= data
;
1808 struct wacom_remote
*remote
= wacom
->remote
;
1813 kobject_put(remote
->remote_dir
);
1814 kfifo_free(&remote
->remote_fifo
);
1815 wacom
->remote
= NULL
;
1818 static int wacom_initialize_remotes(struct wacom
*wacom
)
1821 struct wacom_remote
*remote
;
1824 if (wacom
->wacom_wac
.features
.type
!= REMOTE
)
1827 remote
= devm_kzalloc(&wacom
->hdev
->dev
, sizeof(*wacom
->remote
),
1832 wacom
->remote
= remote
;
1834 spin_lock_init(&remote
->remote_lock
);
1836 error
= kfifo_alloc(&remote
->remote_fifo
,
1837 5 * sizeof(struct wacom_remote_data
),
1840 hid_err(wacom
->hdev
, "failed allocating remote_fifo\n");
1844 remote
->remotes
[0].group
= remote0_serial_group
;
1845 remote
->remotes
[1].group
= remote1_serial_group
;
1846 remote
->remotes
[2].group
= remote2_serial_group
;
1847 remote
->remotes
[3].group
= remote3_serial_group
;
1848 remote
->remotes
[4].group
= remote4_serial_group
;
1850 remote
->remote_dir
= kobject_create_and_add("wacom_remote",
1851 &wacom
->hdev
->dev
.kobj
);
1852 if (!remote
->remote_dir
)
1855 error
= sysfs_create_files(remote
->remote_dir
, remote_unpair_attrs
);
1858 hid_err(wacom
->hdev
,
1859 "cannot create sysfs group err: %d\n", error
);
1863 for (i
= 0; i
< WACOM_MAX_REMOTES
; i
++) {
1864 wacom
->led
.groups
[i
].select
= WACOM_STATUS_UNKNOWN
;
1865 remote
->remotes
[i
].serial
= 0;
1868 error
= devm_add_action_or_reset(&wacom
->hdev
->dev
,
1869 wacom_remotes_destroy
, wacom
);
1876 static struct input_dev
*wacom_allocate_input(struct wacom
*wacom
)
1878 struct input_dev
*input_dev
;
1879 struct hid_device
*hdev
= wacom
->hdev
;
1880 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
1882 input_dev
= devm_input_allocate_device(&hdev
->dev
);
1886 input_dev
->name
= wacom_wac
->features
.name
;
1887 input_dev
->phys
= hdev
->phys
;
1888 input_dev
->dev
.parent
= &hdev
->dev
;
1889 input_dev
->open
= wacom_open
;
1890 input_dev
->close
= wacom_close
;
1891 input_dev
->uniq
= hdev
->uniq
;
1892 input_dev
->id
.bustype
= hdev
->bus
;
1893 input_dev
->id
.vendor
= hdev
->vendor
;
1894 input_dev
->id
.product
= wacom_wac
->pid
? wacom_wac
->pid
: hdev
->product
;
1895 input_dev
->id
.version
= hdev
->version
;
1896 input_set_drvdata(input_dev
, wacom
);
1901 static int wacom_allocate_inputs(struct wacom
*wacom
)
1903 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
1905 wacom_wac
->pen_input
= wacom_allocate_input(wacom
);
1906 wacom_wac
->touch_input
= wacom_allocate_input(wacom
);
1907 wacom_wac
->pad_input
= wacom_allocate_input(wacom
);
1908 if (!wacom_wac
->pen_input
||
1909 !wacom_wac
->touch_input
||
1910 !wacom_wac
->pad_input
)
1913 wacom_wac
->pen_input
->name
= wacom_wac
->pen_name
;
1914 wacom_wac
->touch_input
->name
= wacom_wac
->touch_name
;
1915 wacom_wac
->pad_input
->name
= wacom_wac
->pad_name
;
1920 static int wacom_register_inputs(struct wacom
*wacom
)
1922 struct input_dev
*pen_input_dev
, *touch_input_dev
, *pad_input_dev
;
1923 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
1926 pen_input_dev
= wacom_wac
->pen_input
;
1927 touch_input_dev
= wacom_wac
->touch_input
;
1928 pad_input_dev
= wacom_wac
->pad_input
;
1930 if (!pen_input_dev
|| !touch_input_dev
|| !pad_input_dev
)
1933 error
= wacom_setup_pen_input_capabilities(pen_input_dev
, wacom_wac
);
1935 /* no pen in use on this interface */
1936 input_free_device(pen_input_dev
);
1937 wacom_wac
->pen_input
= NULL
;
1938 pen_input_dev
= NULL
;
1940 error
= input_register_device(pen_input_dev
);
1945 error
= wacom_setup_touch_input_capabilities(touch_input_dev
, wacom_wac
);
1947 /* no touch in use on this interface */
1948 input_free_device(touch_input_dev
);
1949 wacom_wac
->touch_input
= NULL
;
1950 touch_input_dev
= NULL
;
1952 error
= input_register_device(touch_input_dev
);
1957 error
= wacom_setup_pad_input_capabilities(pad_input_dev
, wacom_wac
);
1959 /* no pad in use on this interface */
1960 input_free_device(pad_input_dev
);
1961 wacom_wac
->pad_input
= NULL
;
1962 pad_input_dev
= NULL
;
1964 error
= input_register_device(pad_input_dev
);
1972 wacom_wac
->pad_input
= NULL
;
1973 wacom_wac
->touch_input
= NULL
;
1974 wacom_wac
->pen_input
= NULL
;
1979 * Not all devices report physical dimensions from HID.
1980 * Compute the default from hardcoded logical dimension
1981 * and resolution before driver overwrites them.
1983 static void wacom_set_default_phy(struct wacom_features
*features
)
1985 if (features
->x_resolution
) {
1986 features
->x_phy
= (features
->x_max
* 100) /
1987 features
->x_resolution
;
1988 features
->y_phy
= (features
->y_max
* 100) /
1989 features
->y_resolution
;
1993 static void wacom_calculate_res(struct wacom_features
*features
)
1995 /* set unit to "100th of a mm" for devices not reported by HID */
1996 if (!features
->unit
) {
1997 features
->unit
= 0x11;
1998 features
->unitExpo
= -3;
2001 features
->x_resolution
= wacom_calc_hid_res(features
->x_max
,
2004 features
->unitExpo
);
2005 features
->y_resolution
= wacom_calc_hid_res(features
->y_max
,
2008 features
->unitExpo
);
2011 void wacom_battery_work(struct work_struct
*work
)
2013 struct wacom
*wacom
= container_of(work
, struct wacom
, battery_work
);
2015 if ((wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_BATTERY
) &&
2016 !wacom
->battery
.battery
) {
2017 wacom_initialize_battery(wacom
);
2019 else if (!(wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_BATTERY
) &&
2020 wacom
->battery
.battery
) {
2021 wacom_destroy_battery(wacom
);
2025 static size_t wacom_compute_pktlen(struct hid_device
*hdev
)
2027 struct hid_report_enum
*report_enum
;
2028 struct hid_report
*report
;
2031 report_enum
= hdev
->report_enum
+ HID_INPUT_REPORT
;
2033 list_for_each_entry(report
, &report_enum
->report_list
, list
) {
2034 size_t report_size
= hid_report_len(report
);
2035 if (report_size
> size
)
2042 static void wacom_update_name(struct wacom
*wacom
, const char *suffix
)
2044 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
2045 struct wacom_features
*features
= &wacom_wac
->features
;
2046 char name
[WACOM_NAME_MAX
];
2048 /* Generic devices name unspecified */
2049 if ((features
->type
== HID_GENERIC
) && !strcmp("Wacom HID", features
->name
)) {
2050 char *product_name
= wacom
->hdev
->name
;
2052 if (hid_is_using_ll_driver(wacom
->hdev
, &usb_hid_driver
)) {
2053 struct usb_interface
*intf
= to_usb_interface(wacom
->hdev
->dev
.parent
);
2054 struct usb_device
*dev
= interface_to_usbdev(intf
);
2055 product_name
= dev
->product
;
2058 if (wacom
->hdev
->bus
== BUS_I2C
) {
2059 snprintf(name
, sizeof(name
), "%s %X",
2060 features
->name
, wacom
->hdev
->product
);
2061 } else if (strstr(product_name
, "Wacom") ||
2062 strstr(product_name
, "wacom") ||
2063 strstr(product_name
, "WACOM")) {
2064 strlcpy(name
, product_name
, sizeof(name
));
2066 snprintf(name
, sizeof(name
), "Wacom %s", product_name
);
2069 /* strip out excess whitespaces */
2071 char *gap
= strstr(name
, " ");
2074 /* shift everything including the terminator */
2075 memmove(gap
, gap
+1, strlen(gap
));
2078 /* get rid of trailing whitespace */
2079 if (name
[strlen(name
)-1] == ' ')
2080 name
[strlen(name
)-1] = '\0';
2082 strlcpy(name
, features
->name
, sizeof(name
));
2085 snprintf(wacom_wac
->name
, sizeof(wacom_wac
->name
), "%s%s",
2088 /* Append the device type to the name */
2089 snprintf(wacom_wac
->pen_name
, sizeof(wacom_wac
->pen_name
),
2090 "%s%s Pen", name
, suffix
);
2091 snprintf(wacom_wac
->touch_name
, sizeof(wacom_wac
->touch_name
),
2092 "%s%s Finger", name
, suffix
);
2093 snprintf(wacom_wac
->pad_name
, sizeof(wacom_wac
->pad_name
),
2094 "%s%s Pad", name
, suffix
);
2097 static void wacom_release_resources(struct wacom
*wacom
)
2099 struct hid_device
*hdev
= wacom
->hdev
;
2101 if (!wacom
->resources
)
2104 devres_release_group(&hdev
->dev
, wacom
);
2106 wacom
->resources
= false;
2108 wacom
->wacom_wac
.pen_input
= NULL
;
2109 wacom
->wacom_wac
.touch_input
= NULL
;
2110 wacom
->wacom_wac
.pad_input
= NULL
;
2113 static void wacom_set_shared_values(struct wacom_wac
*wacom_wac
)
2115 if (wacom_wac
->features
.device_type
& WACOM_DEVICETYPE_TOUCH
) {
2116 wacom_wac
->shared
->type
= wacom_wac
->features
.type
;
2117 wacom_wac
->shared
->touch_input
= wacom_wac
->touch_input
;
2120 if (wacom_wac
->has_mute_touch_switch
) {
2121 wacom_wac
->shared
->has_mute_touch_switch
= true;
2122 wacom_wac
->shared
->is_touch_on
= true;
2125 if (wacom_wac
->shared
->has_mute_touch_switch
&&
2126 wacom_wac
->shared
->touch_input
) {
2127 set_bit(EV_SW
, wacom_wac
->shared
->touch_input
->evbit
);
2128 input_set_capability(wacom_wac
->shared
->touch_input
, EV_SW
,
2133 static int wacom_parse_and_register(struct wacom
*wacom
, bool wireless
)
2135 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
2136 struct wacom_features
*features
= &wacom_wac
->features
;
2137 struct hid_device
*hdev
= wacom
->hdev
;
2139 unsigned int connect_mask
= HID_CONNECT_HIDRAW
;
2141 features
->pktlen
= wacom_compute_pktlen(hdev
);
2142 if (features
->pktlen
> WACOM_PKGLEN_MAX
)
2145 if (!devres_open_group(&hdev
->dev
, wacom
, GFP_KERNEL
))
2148 wacom
->resources
= true;
2150 error
= wacom_allocate_inputs(wacom
);
2155 * Bamboo Pad has a generic hid handling for the Pen, and we switch it
2156 * into debug mode for the touch part.
2157 * We ignore the other interfaces.
2159 if (features
->type
== BAMBOO_PAD
) {
2160 if (features
->pktlen
== WACOM_PKGLEN_PENABLED
) {
2161 features
->type
= HID_GENERIC
;
2162 } else if ((features
->pktlen
!= WACOM_PKGLEN_BPAD_TOUCH
) &&
2163 (features
->pktlen
!= WACOM_PKGLEN_BPAD_TOUCH_USB
)) {
2169 /* set the default size in case we do not get them from hid */
2170 wacom_set_default_phy(features
);
2172 /* Retrieve the physical and logical size for touch devices */
2173 wacom_retrieve_hid_descriptor(hdev
, features
);
2174 wacom_setup_device_quirks(wacom
);
2176 if (features
->device_type
== WACOM_DEVICETYPE_NONE
&&
2177 features
->type
!= WIRELESS
) {
2178 error
= features
->type
== HID_GENERIC
? -ENODEV
: 0;
2180 dev_warn(&hdev
->dev
, "Unknown device_type for '%s'. %s.",
2182 error
? "Ignoring" : "Assuming pen");
2187 features
->device_type
|= WACOM_DEVICETYPE_PEN
;
2190 wacom_calculate_res(features
);
2192 wacom_update_name(wacom
, wireless
? " (WL)" : "");
2194 /* pen only Bamboo neither support touch nor pad */
2195 if ((features
->type
== BAMBOO_PEN
) &&
2196 ((features
->device_type
& WACOM_DEVICETYPE_TOUCH
) ||
2197 (features
->device_type
& WACOM_DEVICETYPE_PAD
))) {
2202 error
= wacom_add_shared_data(hdev
);
2206 if (!(features
->device_type
& WACOM_DEVICETYPE_WL_MONITOR
) &&
2207 (features
->quirks
& WACOM_QUIRK_BATTERY
)) {
2208 error
= wacom_initialize_battery(wacom
);
2213 error
= wacom_register_inputs(wacom
);
2217 if (wacom
->wacom_wac
.features
.device_type
& WACOM_DEVICETYPE_PAD
) {
2218 error
= wacom_initialize_leds(wacom
);
2222 error
= wacom_initialize_remotes(wacom
);
2227 if (features
->type
== HID_GENERIC
)
2228 connect_mask
|= HID_CONNECT_DRIVER
;
2230 /* Regular HID work starts now */
2231 error
= hid_hw_start(hdev
, connect_mask
);
2233 hid_err(hdev
, "hw start failed\n");
2238 /* Note that if query fails it is not a hard failure */
2239 wacom_query_tablet_data(wacom
);
2242 /* touch only Bamboo doesn't support pen */
2243 if ((features
->type
== BAMBOO_TOUCH
) &&
2244 (features
->device_type
& WACOM_DEVICETYPE_PEN
)) {
2245 cancel_delayed_work_sync(&wacom
->init_work
);
2246 _wacom_query_tablet_data(wacom
);
2251 if (features
->device_type
& WACOM_DEVICETYPE_WL_MONITOR
)
2252 error
= hid_hw_open(hdev
);
2254 wacom_set_shared_values(wacom_wac
);
2255 devres_close_group(&hdev
->dev
, wacom
);
2262 wacom_release_resources(wacom
);
2266 static void wacom_wireless_work(struct work_struct
*work
)
2268 struct wacom
*wacom
= container_of(work
, struct wacom
, wireless_work
);
2269 struct usb_device
*usbdev
= wacom
->usbdev
;
2270 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
2271 struct hid_device
*hdev1
, *hdev2
;
2272 struct wacom
*wacom1
, *wacom2
;
2273 struct wacom_wac
*wacom_wac1
, *wacom_wac2
;
2277 * Regardless if this is a disconnect or a new tablet,
2278 * remove any existing input and battery devices.
2281 wacom_destroy_battery(wacom
);
2283 /* Stylus interface */
2284 hdev1
= usb_get_intfdata(usbdev
->config
->interface
[1]);
2285 wacom1
= hid_get_drvdata(hdev1
);
2286 wacom_wac1
= &(wacom1
->wacom_wac
);
2287 wacom_release_resources(wacom1
);
2289 /* Touch interface */
2290 hdev2
= usb_get_intfdata(usbdev
->config
->interface
[2]);
2291 wacom2
= hid_get_drvdata(hdev2
);
2292 wacom_wac2
= &(wacom2
->wacom_wac
);
2293 wacom_release_resources(wacom2
);
2295 if (wacom_wac
->pid
== 0) {
2296 hid_info(wacom
->hdev
, "wireless tablet disconnected\n");
2298 const struct hid_device_id
*id
= wacom_ids
;
2300 hid_info(wacom
->hdev
, "wireless tablet connected with PID %x\n",
2304 if (id
->vendor
== USB_VENDOR_ID_WACOM
&&
2305 id
->product
== wacom_wac
->pid
)
2311 hid_info(wacom
->hdev
, "ignoring unknown PID.\n");
2315 /* Stylus interface */
2316 wacom_wac1
->features
=
2317 *((struct wacom_features
*)id
->driver_data
);
2319 wacom_wac1
->pid
= wacom_wac
->pid
;
2321 error
= wacom_parse_and_register(wacom1
, true);
2325 /* Touch interface */
2326 if (wacom_wac1
->features
.touch_max
||
2327 (wacom_wac1
->features
.type
>= INTUOSHT
&&
2328 wacom_wac1
->features
.type
<= BAMBOO_PT
)) {
2329 wacom_wac2
->features
=
2330 *((struct wacom_features
*)id
->driver_data
);
2331 wacom_wac2
->pid
= wacom_wac
->pid
;
2333 error
= wacom_parse_and_register(wacom2
, true);
2338 strlcpy(wacom_wac
->name
, wacom_wac1
->name
,
2339 sizeof(wacom_wac
->name
));
2340 error
= wacom_initialize_battery(wacom
);
2348 wacom_release_resources(wacom1
);
2349 wacom_release_resources(wacom2
);
2353 static void wacom_remote_destroy_one(struct wacom
*wacom
, unsigned int index
)
2355 struct wacom_remote
*remote
= wacom
->remote
;
2356 u32 serial
= remote
->remotes
[index
].serial
;
2358 unsigned long flags
;
2360 for (i
= 0; i
< WACOM_MAX_REMOTES
; i
++) {
2361 if (remote
->remotes
[i
].serial
== serial
) {
2363 spin_lock_irqsave(&remote
->remote_lock
, flags
);
2364 remote
->remotes
[i
].registered
= false;
2365 spin_unlock_irqrestore(&remote
->remote_lock
, flags
);
2367 if (remote
->remotes
[i
].battery
.battery
)
2368 devres_release_group(&wacom
->hdev
->dev
,
2369 &remote
->remotes
[i
].battery
.bat_desc
);
2371 if (remote
->remotes
[i
].group
.name
)
2372 devres_release_group(&wacom
->hdev
->dev
,
2373 &remote
->remotes
[i
]);
2375 remote
->remotes
[i
].serial
= 0;
2376 remote
->remotes
[i
].group
.name
= NULL
;
2377 remote
->remotes
[i
].battery
.battery
= NULL
;
2378 wacom
->led
.groups
[i
].select
= WACOM_STATUS_UNKNOWN
;
2383 static int wacom_remote_create_one(struct wacom
*wacom
, u32 serial
,
2386 struct wacom_remote
*remote
= wacom
->remote
;
2387 struct device
*dev
= &wacom
->hdev
->dev
;
2390 /* A remote can pair more than once with an EKR,
2391 * check to make sure this serial isn't already paired.
2393 for (k
= 0; k
< WACOM_MAX_REMOTES
; k
++) {
2394 if (remote
->remotes
[k
].serial
== serial
)
2398 if (k
< WACOM_MAX_REMOTES
) {
2399 remote
->remotes
[index
].serial
= serial
;
2403 if (!devres_open_group(dev
, &remote
->remotes
[index
], GFP_KERNEL
))
2406 error
= wacom_remote_create_attr_group(wacom
, serial
, index
);
2410 remote
->remotes
[index
].input
= wacom_allocate_input(wacom
);
2411 if (!remote
->remotes
[index
].input
) {
2415 remote
->remotes
[index
].input
->uniq
= remote
->remotes
[index
].group
.name
;
2416 remote
->remotes
[index
].input
->name
= wacom
->wacom_wac
.pad_name
;
2418 if (!remote
->remotes
[index
].input
->name
) {
2423 error
= wacom_setup_pad_input_capabilities(remote
->remotes
[index
].input
,
2428 remote
->remotes
[index
].serial
= serial
;
2430 error
= input_register_device(remote
->remotes
[index
].input
);
2434 error
= wacom_led_groups_alloc_and_register_one(
2435 &remote
->remotes
[index
].input
->dev
,
2436 wacom
, index
, 3, true);
2440 remote
->remotes
[index
].registered
= true;
2442 devres_close_group(dev
, &remote
->remotes
[index
]);
2446 devres_release_group(dev
, &remote
->remotes
[index
]);
2447 remote
->remotes
[index
].serial
= 0;
2451 static int wacom_remote_attach_battery(struct wacom
*wacom
, int index
)
2453 struct wacom_remote
*remote
= wacom
->remote
;
2456 if (!remote
->remotes
[index
].registered
)
2459 if (remote
->remotes
[index
].battery
.battery
)
2462 if (wacom
->led
.groups
[index
].select
== WACOM_STATUS_UNKNOWN
)
2465 error
= __wacom_initialize_battery(wacom
,
2466 &wacom
->remote
->remotes
[index
].battery
);
2473 static void wacom_remote_work(struct work_struct
*work
)
2475 struct wacom
*wacom
= container_of(work
, struct wacom
, remote_work
);
2476 struct wacom_remote
*remote
= wacom
->remote
;
2477 struct wacom_remote_data data
;
2478 unsigned long flags
;
2483 spin_lock_irqsave(&remote
->remote_lock
, flags
);
2485 count
= kfifo_out(&remote
->remote_fifo
, &data
, sizeof(data
));
2487 if (count
!= sizeof(data
)) {
2488 hid_err(wacom
->hdev
,
2489 "workitem triggered without status available\n");
2490 spin_unlock_irqrestore(&remote
->remote_lock
, flags
);
2494 if (!kfifo_is_empty(&remote
->remote_fifo
))
2495 wacom_schedule_work(&wacom
->wacom_wac
, WACOM_WORKER_REMOTE
);
2497 spin_unlock_irqrestore(&remote
->remote_lock
, flags
);
2499 for (i
= 0; i
< WACOM_MAX_REMOTES
; i
++) {
2500 serial
= data
.remote
[i
].serial
;
2501 if (data
.remote
[i
].connected
) {
2503 if (remote
->remotes
[i
].serial
== serial
) {
2504 wacom_remote_attach_battery(wacom
, i
);
2508 if (remote
->remotes
[i
].serial
)
2509 wacom_remote_destroy_one(wacom
, i
);
2511 wacom_remote_create_one(wacom
, serial
, i
);
2513 } else if (remote
->remotes
[i
].serial
) {
2514 wacom_remote_destroy_one(wacom
, i
);
2519 static void wacom_mode_change_work(struct work_struct
*work
)
2521 struct wacom
*wacom
= container_of(work
, struct wacom
, mode_change_work
);
2522 struct wacom_shared
*shared
= wacom
->wacom_wac
.shared
;
2523 struct wacom
*wacom1
= NULL
;
2524 struct wacom
*wacom2
= NULL
;
2525 bool is_direct
= wacom
->wacom_wac
.is_direct_mode
;
2529 wacom1
= hid_get_drvdata(shared
->pen
);
2530 wacom_release_resources(wacom1
);
2531 hid_hw_stop(wacom1
->hdev
);
2532 wacom1
->wacom_wac
.has_mode_change
= true;
2533 wacom1
->wacom_wac
.is_direct_mode
= is_direct
;
2536 if (shared
->touch
) {
2537 wacom2
= hid_get_drvdata(shared
->touch
);
2538 wacom_release_resources(wacom2
);
2539 hid_hw_stop(wacom2
->hdev
);
2540 wacom2
->wacom_wac
.has_mode_change
= true;
2541 wacom2
->wacom_wac
.is_direct_mode
= is_direct
;
2545 error
= wacom_parse_and_register(wacom1
, false);
2551 error
= wacom_parse_and_register(wacom2
, false);
2559 static int wacom_probe(struct hid_device
*hdev
,
2560 const struct hid_device_id
*id
)
2562 struct usb_interface
*intf
= to_usb_interface(hdev
->dev
.parent
);
2563 struct usb_device
*dev
= interface_to_usbdev(intf
);
2564 struct wacom
*wacom
;
2565 struct wacom_wac
*wacom_wac
;
2566 struct wacom_features
*features
;
2569 if (!id
->driver_data
)
2572 hdev
->quirks
|= HID_QUIRK_NO_INIT_REPORTS
;
2574 /* hid-core sets this quirk for the boot interface */
2575 hdev
->quirks
&= ~HID_QUIRK_NOGET
;
2577 wacom
= devm_kzalloc(&hdev
->dev
, sizeof(struct wacom
), GFP_KERNEL
);
2581 hid_set_drvdata(hdev
, wacom
);
2584 wacom_wac
= &wacom
->wacom_wac
;
2585 wacom_wac
->features
= *((struct wacom_features
*)id
->driver_data
);
2586 features
= &wacom_wac
->features
;
2588 if (features
->check_for_hid_type
&& features
->hid_type
!= hdev
->type
) {
2593 wacom_wac
->hid_data
.inputmode
= -1;
2594 wacom_wac
->mode_report
= -1;
2596 wacom
->usbdev
= dev
;
2598 mutex_init(&wacom
->lock
);
2599 INIT_DELAYED_WORK(&wacom
->init_work
, wacom_init_work
);
2600 INIT_WORK(&wacom
->wireless_work
, wacom_wireless_work
);
2601 INIT_WORK(&wacom
->battery_work
, wacom_battery_work
);
2602 INIT_WORK(&wacom
->remote_work
, wacom_remote_work
);
2603 INIT_WORK(&wacom
->mode_change_work
, wacom_mode_change_work
);
2605 /* ask for the report descriptor to be loaded by HID */
2606 error
= hid_parse(hdev
);
2608 hid_err(hdev
, "parse failed\n");
2612 error
= wacom_parse_and_register(wacom
, false);
2616 if (hdev
->bus
== BUS_BLUETOOTH
) {
2617 error
= device_create_file(&hdev
->dev
, &dev_attr_speed
);
2620 "can't create sysfs speed attribute err: %d\n",
2627 hid_set_drvdata(hdev
, NULL
);
2631 static void wacom_remove(struct hid_device
*hdev
)
2633 struct wacom
*wacom
= hid_get_drvdata(hdev
);
2634 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
2635 struct wacom_features
*features
= &wacom_wac
->features
;
2637 if (features
->device_type
& WACOM_DEVICETYPE_WL_MONITOR
)
2642 cancel_delayed_work_sync(&wacom
->init_work
);
2643 cancel_work_sync(&wacom
->wireless_work
);
2644 cancel_work_sync(&wacom
->battery_work
);
2645 cancel_work_sync(&wacom
->remote_work
);
2646 cancel_work_sync(&wacom
->mode_change_work
);
2647 if (hdev
->bus
== BUS_BLUETOOTH
)
2648 device_remove_file(&hdev
->dev
, &dev_attr_speed
);
2650 /* make sure we don't trigger the LEDs */
2651 wacom_led_groups_release(wacom
);
2653 if (wacom
->wacom_wac
.features
.type
!= REMOTE
)
2654 wacom_release_resources(wacom
);
2656 hid_set_drvdata(hdev
, NULL
);
2660 static int wacom_resume(struct hid_device
*hdev
)
2662 struct wacom
*wacom
= hid_get_drvdata(hdev
);
2664 mutex_lock(&wacom
->lock
);
2666 /* switch to wacom mode first */
2667 _wacom_query_tablet_data(wacom
);
2668 wacom_led_control(wacom
);
2670 mutex_unlock(&wacom
->lock
);
2675 static int wacom_reset_resume(struct hid_device
*hdev
)
2677 return wacom_resume(hdev
);
2679 #endif /* CONFIG_PM */
2681 static struct hid_driver wacom_driver
= {
2683 .id_table
= wacom_ids
,
2684 .probe
= wacom_probe
,
2685 .remove
= wacom_remove
,
2686 .report
= wacom_wac_report
,
2688 .resume
= wacom_resume
,
2689 .reset_resume
= wacom_reset_resume
,
2691 .raw_event
= wacom_raw_event
,
2693 module_hid_driver(wacom_driver
);
2695 MODULE_VERSION(DRIVER_VERSION
);
2696 MODULE_AUTHOR(DRIVER_AUTHOR
);
2697 MODULE_DESCRIPTION(DRIVER_DESC
);
2698 MODULE_LICENSE("GPL");