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
20 #define WAC_CMD_WL_LED_CONTROL 0x03
21 #define WAC_CMD_LED_CONTROL 0x20
22 #define WAC_CMD_ICON_START 0x21
23 #define WAC_CMD_ICON_XFER 0x23
24 #define WAC_CMD_ICON_BT_XFER 0x26
25 #define WAC_CMD_RETRIES 10
26 #define WAC_CMD_DELETE_PAIRING 0x20
27 #define WAC_CMD_UNPAIR_ALL 0xFF
29 #define DEV_ATTR_RW_PERM (S_IRUGO | S_IWUSR | S_IWGRP)
30 #define DEV_ATTR_WO_PERM (S_IWUSR | S_IWGRP)
31 #define DEV_ATTR_RO_PERM (S_IRUSR | S_IRGRP)
33 static int wacom_get_report(struct hid_device
*hdev
, u8 type
, u8
*buf
,
34 size_t size
, unsigned int retries
)
39 retval
= hid_hw_raw_request(hdev
, buf
[0], buf
, size
, type
,
41 } while ((retval
== -ETIMEDOUT
|| retval
== -EAGAIN
) && --retries
);
44 hid_err(hdev
, "wacom_get_report: ran out of retries "
45 "(last error = %d)\n", retval
);
50 static int wacom_set_report(struct hid_device
*hdev
, u8 type
, u8
*buf
,
51 size_t size
, unsigned int retries
)
56 retval
= hid_hw_raw_request(hdev
, buf
[0], buf
, size
, type
,
58 } while ((retval
== -ETIMEDOUT
|| retval
== -EAGAIN
) && --retries
);
61 hid_err(hdev
, "wacom_set_report: ran out of retries "
62 "(last error = %d)\n", retval
);
67 static int wacom_raw_event(struct hid_device
*hdev
, struct hid_report
*report
,
68 u8
*raw_data
, int size
)
70 struct wacom
*wacom
= hid_get_drvdata(hdev
);
72 if (size
> WACOM_PKGLEN_MAX
)
75 memcpy(wacom
->wacom_wac
.data
, raw_data
, size
);
77 wacom_wac_irq(&wacom
->wacom_wac
, size
);
82 static int wacom_open(struct input_dev
*dev
)
84 struct wacom
*wacom
= input_get_drvdata(dev
);
86 return hid_hw_open(wacom
->hdev
);
89 static void wacom_close(struct input_dev
*dev
)
91 struct wacom
*wacom
= input_get_drvdata(dev
);
94 * wacom->hdev should never be null, but surprisingly, I had the case
95 * once while unplugging the Wacom Wireless Receiver.
98 hid_hw_close(wacom
->hdev
);
102 * Calculate the resolution of the X or Y axis using hidinput_calc_abs_res.
104 static int wacom_calc_hid_res(int logical_extents
, int physical_extents
,
105 unsigned unit
, int exponent
)
107 struct hid_field field
= {
108 .logical_maximum
= logical_extents
,
109 .physical_maximum
= physical_extents
,
111 .unit_exponent
= exponent
,
114 return hidinput_calc_abs_res(&field
, ABS_X
);
117 static void wacom_feature_mapping(struct hid_device
*hdev
,
118 struct hid_field
*field
, struct hid_usage
*usage
)
120 struct wacom
*wacom
= hid_get_drvdata(hdev
);
121 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
122 struct hid_data
*hid_data
= &wacom
->wacom_wac
.hid_data
;
126 switch (usage
->hid
) {
127 case HID_DG_CONTACTMAX
:
128 /* leave touch_max as is if predefined */
129 if (!features
->touch_max
) {
131 data
= kzalloc(2, GFP_KERNEL
);
134 data
[0] = field
->report
->id
;
135 ret
= wacom_get_report(hdev
, HID_FEATURE_REPORT
,
136 data
, 2, WAC_CMD_RETRIES
);
138 features
->touch_max
= data
[1];
140 features
->touch_max
= 16;
141 hid_warn(hdev
, "wacom_feature_mapping: "
142 "could not get HID_DG_CONTACTMAX, "
143 "defaulting to %d\n",
144 features
->touch_max
);
149 case HID_DG_INPUTMODE
:
150 /* Ignore if value index is out of bounds. */
151 if (usage
->usage_index
>= field
->report_count
) {
152 dev_err(&hdev
->dev
, "HID_DG_INPUTMODE out of range\n");
156 hid_data
->inputmode
= field
->report
->id
;
157 hid_data
->inputmode_index
= usage
->usage_index
;
160 case HID_UP_DIGITIZER
:
161 if (field
->report
->id
== 0x0B &&
162 (field
->application
== WACOM_G9_DIGITIZER
||
163 field
->application
== WACOM_G11_DIGITIZER
)) {
164 wacom
->wacom_wac
.mode_report
= field
->report
->id
;
165 wacom
->wacom_wac
.mode_value
= 0;
171 if (field
->report
->id
== 0x03 &&
172 (field
->application
== WACOM_G9_TOUCHSCREEN
||
173 field
->application
== WACOM_G11_TOUCHSCREEN
)) {
174 wacom
->wacom_wac
.mode_report
= field
->report
->id
;
175 wacom
->wacom_wac
.mode_value
= 0;
182 * Interface Descriptor of wacom devices can be incomplete and
183 * inconsistent so wacom_features table is used to store stylus
184 * device's packet lengths, various maximum values, and tablet
185 * resolution based on product ID's.
187 * For devices that contain 2 interfaces, wacom_features table is
188 * inaccurate for the touch interface. Since the Interface Descriptor
189 * for touch interfaces has pretty complete data, this function exists
190 * to query tablet for this missing information instead of hard coding in
191 * an additional table.
193 * A typical Interface Descriptor for a stylus will contain a
194 * boot mouse application collection that is not of interest and this
195 * function will ignore it.
197 * It also contains a digitizer application collection that also is not
198 * of interest since any information it contains would be duplicate
199 * of what is in wacom_features. Usually it defines a report of an array
200 * of bytes that could be used as max length of the stylus packet returned.
201 * If it happens to define a Digitizer-Stylus Physical Collection then
202 * the X and Y logical values contain valid data but it is ignored.
204 * A typical Interface Descriptor for a touch interface will contain a
205 * Digitizer-Finger Physical Collection which will define both logical
206 * X/Y maximum as well as the physical size of tablet. Since touch
207 * interfaces haven't supported pressure or distance, this is enough
208 * information to override invalid values in the wacom_features table.
210 * Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful
211 * data. We deal with them after returning from this function.
213 static void wacom_usage_mapping(struct hid_device
*hdev
,
214 struct hid_field
*field
, struct hid_usage
*usage
)
216 struct wacom
*wacom
= hid_get_drvdata(hdev
);
217 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
218 bool finger
= WACOM_FINGER_FIELD(field
);
219 bool pen
= WACOM_PEN_FIELD(field
);
222 * Requiring Stylus Usage will ignore boot mouse
223 * X/Y values and some cases of invalid Digitizer X/Y
224 * values commonly reported.
227 features
->device_type
|= WACOM_DEVICETYPE_PEN
;
229 features
->device_type
|= WACOM_DEVICETYPE_TOUCH
;
234 * Bamboo models do not support HID_DG_CONTACTMAX.
235 * And, Bamboo Pen only descriptor contains touch.
237 if (features
->type
> BAMBOO_PT
) {
238 /* ISDv4 touch devices at least supports one touch point */
239 if (finger
&& !features
->touch_max
)
240 features
->touch_max
= 1;
243 switch (usage
->hid
) {
245 features
->x_max
= field
->logical_maximum
;
247 features
->x_phy
= field
->physical_maximum
;
248 if ((features
->type
!= BAMBOO_PT
) &&
249 (features
->type
!= BAMBOO_TOUCH
)) {
250 features
->unit
= field
->unit
;
251 features
->unitExpo
= field
->unit_exponent
;
256 features
->y_max
= field
->logical_maximum
;
258 features
->y_phy
= field
->physical_maximum
;
259 if ((features
->type
!= BAMBOO_PT
) &&
260 (features
->type
!= BAMBOO_TOUCH
)) {
261 features
->unit
= field
->unit
;
262 features
->unitExpo
= field
->unit_exponent
;
266 case HID_DG_TIPPRESSURE
:
268 features
->pressure_max
= field
->logical_maximum
;
272 if (features
->type
== HID_GENERIC
)
273 wacom_wac_usage_mapping(hdev
, field
, usage
);
276 static void wacom_post_parse_hid(struct hid_device
*hdev
,
277 struct wacom_features
*features
)
279 struct wacom
*wacom
= hid_get_drvdata(hdev
);
280 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
282 if (features
->type
== HID_GENERIC
) {
283 /* Any last-minute generic device setup */
284 if (features
->touch_max
> 1) {
285 input_mt_init_slots(wacom_wac
->touch_input
, wacom_wac
->features
.touch_max
,
291 static void wacom_parse_hid(struct hid_device
*hdev
,
292 struct wacom_features
*features
)
294 struct hid_report_enum
*rep_enum
;
295 struct hid_report
*hreport
;
298 /* check features first */
299 rep_enum
= &hdev
->report_enum
[HID_FEATURE_REPORT
];
300 list_for_each_entry(hreport
, &rep_enum
->report_list
, list
) {
301 for (i
= 0; i
< hreport
->maxfield
; i
++) {
302 /* Ignore if report count is out of bounds. */
303 if (hreport
->field
[i
]->report_count
< 1)
306 for (j
= 0; j
< hreport
->field
[i
]->maxusage
; j
++) {
307 wacom_feature_mapping(hdev
, hreport
->field
[i
],
308 hreport
->field
[i
]->usage
+ j
);
313 /* now check the input usages */
314 rep_enum
= &hdev
->report_enum
[HID_INPUT_REPORT
];
315 list_for_each_entry(hreport
, &rep_enum
->report_list
, list
) {
317 if (!hreport
->maxfield
)
320 for (i
= 0; i
< hreport
->maxfield
; i
++)
321 for (j
= 0; j
< hreport
->field
[i
]->maxusage
; j
++)
322 wacom_usage_mapping(hdev
, hreport
->field
[i
],
323 hreport
->field
[i
]->usage
+ j
);
326 wacom_post_parse_hid(hdev
, features
);
329 static int wacom_hid_set_device_mode(struct hid_device
*hdev
)
331 struct wacom
*wacom
= hid_get_drvdata(hdev
);
332 struct hid_data
*hid_data
= &wacom
->wacom_wac
.hid_data
;
333 struct hid_report
*r
;
334 struct hid_report_enum
*re
;
336 if (hid_data
->inputmode
< 0)
339 re
= &(hdev
->report_enum
[HID_FEATURE_REPORT
]);
340 r
= re
->report_id_hash
[hid_data
->inputmode
];
342 r
->field
[0]->value
[hid_data
->inputmode_index
] = 2;
343 hid_hw_request(hdev
, r
, HID_REQ_SET_REPORT
);
348 static int wacom_set_device_mode(struct hid_device
*hdev
,
349 struct wacom_wac
*wacom_wac
)
352 struct hid_report
*r
;
353 struct hid_report_enum
*re
;
355 int error
= -ENOMEM
, limit
= 0;
357 if (wacom_wac
->mode_report
< 0)
360 re
= &(hdev
->report_enum
[HID_FEATURE_REPORT
]);
361 r
= re
->report_id_hash
[wacom_wac
->mode_report
];
365 rep_data
= hid_alloc_report_buf(r
, GFP_KERNEL
);
369 length
= hid_report_len(r
);
372 rep_data
[0] = wacom_wac
->mode_report
;
373 rep_data
[1] = wacom_wac
->mode_value
;
375 error
= wacom_set_report(hdev
, HID_FEATURE_REPORT
, rep_data
,
378 error
= wacom_get_report(hdev
, HID_FEATURE_REPORT
,
379 rep_data
, length
, 1);
380 } while (error
>= 0 &&
381 rep_data
[1] != wacom_wac
->mode_report
&&
382 limit
++ < WAC_MSG_RETRIES
);
386 return error
< 0 ? error
: 0;
389 static int wacom_bt_query_tablet_data(struct hid_device
*hdev
, u8 speed
,
390 struct wacom_features
*features
)
392 struct wacom
*wacom
= hid_get_drvdata(hdev
);
396 switch (features
->type
) {
400 ret
= wacom_set_report(hdev
, HID_FEATURE_REPORT
, rep_data
, 2,
404 rep_data
[0] = speed
== 0 ? 0x05 : 0x06;
407 ret
= wacom_set_report(hdev
, HID_FEATURE_REPORT
,
411 wacom
->wacom_wac
.bt_high_speed
= speed
;
417 * Note that if the raw queries fail, it's not a hard failure
418 * and it is safe to continue
420 hid_warn(hdev
, "failed to poke device, command %d, err %d\n",
425 wacom
->wacom_wac
.bt_features
&= ~0x20;
427 wacom
->wacom_wac
.bt_features
|= 0x20;
430 rep_data
[1] = wacom
->wacom_wac
.bt_features
;
432 ret
= wacom_set_report(hdev
, HID_FEATURE_REPORT
, rep_data
, 2,
435 wacom
->wacom_wac
.bt_high_speed
= speed
;
443 * Switch the tablet into its most-capable mode. Wacom tablets are
444 * typically configured to power-up in a mode which sends mouse-like
445 * reports to the OS. To get absolute position, pressure data, etc.
446 * from the tablet, it is necessary to switch the tablet out of this
447 * mode and into one which sends the full range of tablet data.
449 static int wacom_query_tablet_data(struct hid_device
*hdev
,
450 struct wacom_features
*features
)
452 struct wacom
*wacom
= hid_get_drvdata(hdev
);
453 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
455 if (hdev
->bus
== BUS_BLUETOOTH
)
456 return wacom_bt_query_tablet_data(hdev
, 1, features
);
458 if (features
->type
!= HID_GENERIC
) {
459 if (features
->device_type
& WACOM_DEVICETYPE_TOUCH
) {
460 if (features
->type
> TABLETPC
) {
461 /* MT Tablet PC touch */
462 wacom_wac
->mode_report
= 3;
463 wacom_wac
->mode_value
= 4;
464 } else if (features
->type
== WACOM_24HDT
) {
465 wacom_wac
->mode_report
= 18;
466 wacom_wac
->mode_value
= 2;
467 } else if (features
->type
== WACOM_27QHDT
) {
468 wacom_wac
->mode_report
= 131;
469 wacom_wac
->mode_value
= 2;
470 } else if (features
->type
== BAMBOO_PAD
) {
471 wacom_wac
->mode_report
= 2;
472 wacom_wac
->mode_value
= 2;
474 } else if (features
->device_type
& WACOM_DEVICETYPE_PEN
) {
475 if (features
->type
<= BAMBOO_PT
) {
476 wacom_wac
->mode_report
= 2;
477 wacom_wac
->mode_value
= 2;
482 wacom_set_device_mode(hdev
, wacom_wac
);
484 if (features
->type
== HID_GENERIC
)
485 return wacom_hid_set_device_mode(hdev
);
490 static void wacom_retrieve_hid_descriptor(struct hid_device
*hdev
,
491 struct wacom_features
*features
)
493 struct wacom
*wacom
= hid_get_drvdata(hdev
);
494 struct usb_interface
*intf
= wacom
->intf
;
496 /* default features */
497 features
->x_fuzz
= 4;
498 features
->y_fuzz
= 4;
499 features
->pressure_fuzz
= 0;
500 features
->distance_fuzz
= 1;
501 features
->tilt_fuzz
= 1;
504 * The wireless device HID is basic and layout conflicts with
505 * other tablets (monitor and touch interface can look like pen).
506 * Skip the query for this type and modify defaults based on
509 if (features
->type
== WIRELESS
) {
510 if (intf
->cur_altsetting
->desc
.bInterfaceNumber
== 0)
511 features
->device_type
= WACOM_DEVICETYPE_WL_MONITOR
;
513 features
->device_type
= WACOM_DEVICETYPE_NONE
;
517 wacom_parse_hid(hdev
, features
);
520 struct wacom_hdev_data
{
521 struct list_head list
;
523 struct hid_device
*dev
;
524 struct wacom_shared shared
;
527 static LIST_HEAD(wacom_udev_list
);
528 static DEFINE_MUTEX(wacom_udev_list_lock
);
530 static bool wacom_are_sibling(struct hid_device
*hdev
,
531 struct hid_device
*sibling
)
533 struct wacom
*wacom
= hid_get_drvdata(hdev
);
534 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
535 int vid
= features
->oVid
;
536 int pid
= features
->oPid
;
539 if (vid
== 0 && pid
== 0) {
544 if (vid
!= sibling
->vendor
|| pid
!= sibling
->product
)
547 /* Compare the physical path. */
548 n1
= strrchr(hdev
->phys
, '.') - hdev
->phys
;
549 n2
= strrchr(sibling
->phys
, '.') - sibling
->phys
;
550 if (n1
!= n2
|| n1
<= 0 || n2
<= 0)
553 return !strncmp(hdev
->phys
, sibling
->phys
, n1
);
556 static struct wacom_hdev_data
*wacom_get_hdev_data(struct hid_device
*hdev
)
558 struct wacom_hdev_data
*data
;
560 list_for_each_entry(data
, &wacom_udev_list
, list
) {
561 if (wacom_are_sibling(hdev
, data
->dev
)) {
562 kref_get(&data
->kref
);
570 static void wacom_release_shared_data(struct kref
*kref
)
572 struct wacom_hdev_data
*data
=
573 container_of(kref
, struct wacom_hdev_data
, kref
);
575 mutex_lock(&wacom_udev_list_lock
);
576 list_del(&data
->list
);
577 mutex_unlock(&wacom_udev_list_lock
);
582 static void wacom_remove_shared_data(void *res
)
584 struct wacom
*wacom
= res
;
585 struct wacom_hdev_data
*data
;
586 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
588 if (wacom_wac
->shared
) {
589 data
= container_of(wacom_wac
->shared
, struct wacom_hdev_data
,
592 if (wacom_wac
->shared
->touch
== wacom
->hdev
)
593 wacom_wac
->shared
->touch
= NULL
;
594 else if (wacom_wac
->shared
->pen
== wacom
->hdev
)
595 wacom_wac
->shared
->pen
= NULL
;
597 kref_put(&data
->kref
, wacom_release_shared_data
);
598 wacom_wac
->shared
= NULL
;
602 static int wacom_add_shared_data(struct hid_device
*hdev
)
604 struct wacom
*wacom
= hid_get_drvdata(hdev
);
605 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
606 struct wacom_hdev_data
*data
;
609 mutex_lock(&wacom_udev_list_lock
);
611 data
= wacom_get_hdev_data(hdev
);
613 data
= kzalloc(sizeof(struct wacom_hdev_data
), GFP_KERNEL
);
619 kref_init(&data
->kref
);
621 list_add_tail(&data
->list
, &wacom_udev_list
);
624 wacom_wac
->shared
= &data
->shared
;
626 retval
= devm_add_action(&hdev
->dev
, wacom_remove_shared_data
, wacom
);
628 mutex_unlock(&wacom_udev_list_lock
);
629 wacom_remove_shared_data(wacom
);
633 if (wacom_wac
->features
.device_type
& WACOM_DEVICETYPE_TOUCH
)
634 wacom_wac
->shared
->touch
= hdev
;
635 else if (wacom_wac
->features
.device_type
& WACOM_DEVICETYPE_PEN
)
636 wacom_wac
->shared
->pen
= hdev
;
639 mutex_unlock(&wacom_udev_list_lock
);
643 static int wacom_led_control(struct wacom
*wacom
)
647 unsigned char report_id
= WAC_CMD_LED_CONTROL
;
650 if (!wacom
->led
.groups
)
653 if (wacom
->wacom_wac
.pid
) { /* wireless connected */
654 report_id
= WAC_CMD_WL_LED_CONTROL
;
657 buf
= kzalloc(buf_size
, GFP_KERNEL
);
661 if (wacom
->wacom_wac
.features
.type
>= INTUOS5S
&&
662 wacom
->wacom_wac
.features
.type
<= INTUOSPL
) {
664 * Touch Ring and crop mark LED luminance may take on
665 * one of four values:
666 * 0 = Low; 1 = Medium; 2 = High; 3 = Off
668 int ring_led
= wacom
->led
.groups
[0].select
& 0x03;
669 int ring_lum
= (((wacom
->led
.llv
& 0x60) >> 5) - 1) & 0x03;
671 unsigned char led_bits
= (crop_lum
<< 4) | (ring_lum
<< 2) | (ring_led
);
674 if (wacom
->wacom_wac
.pid
) {
675 wacom_get_report(wacom
->hdev
, HID_FEATURE_REPORT
,
676 buf
, buf_size
, WAC_CMD_RETRIES
);
683 int led
= wacom
->led
.groups
[0].select
| 0x4;
685 if (wacom
->wacom_wac
.features
.type
== WACOM_21UX2
||
686 wacom
->wacom_wac
.features
.type
== WACOM_24HD
)
687 led
|= (wacom
->led
.groups
[1].select
<< 4) | 0x40;
691 buf
[2] = wacom
->led
.llv
;
692 buf
[3] = wacom
->led
.hlv
;
693 buf
[4] = wacom
->led
.img_lum
;
696 retval
= wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
, buf
, buf_size
,
703 static int wacom_led_putimage(struct wacom
*wacom
, int button_id
, u8 xfer_id
,
704 const unsigned len
, const void *img
)
708 const unsigned chunk_len
= len
/ 4; /* 4 chunks are needed to be sent */
710 buf
= kzalloc(chunk_len
+ 3 , GFP_KERNEL
);
714 /* Send 'start' command */
715 buf
[0] = WAC_CMD_ICON_START
;
717 retval
= wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
, buf
, 2,
723 buf
[1] = button_id
& 0x07;
724 for (i
= 0; i
< 4; i
++) {
726 memcpy(buf
+ 3, img
+ i
* chunk_len
, chunk_len
);
728 retval
= wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
,
729 buf
, chunk_len
+ 3, WAC_CMD_RETRIES
);
735 buf
[0] = WAC_CMD_ICON_START
;
737 wacom_set_report(wacom
->hdev
, HID_FEATURE_REPORT
, buf
, 2,
745 static ssize_t
wacom_led_select_store(struct device
*dev
, int set_id
,
746 const char *buf
, size_t count
)
748 struct hid_device
*hdev
= to_hid_device(dev
);
749 struct wacom
*wacom
= hid_get_drvdata(hdev
);
753 err
= kstrtouint(buf
, 10, &id
);
757 mutex_lock(&wacom
->lock
);
759 wacom
->led
.groups
[set_id
].select
= id
& 0x3;
760 err
= wacom_led_control(wacom
);
762 mutex_unlock(&wacom
->lock
);
764 return err
< 0 ? err
: count
;
767 #define DEVICE_LED_SELECT_ATTR(SET_ID) \
768 static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
769 struct device_attribute *attr, const char *buf, size_t count) \
771 return wacom_led_select_store(dev, SET_ID, buf, count); \
773 static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
774 struct device_attribute *attr, char *buf) \
776 struct hid_device *hdev = to_hid_device(dev);\
777 struct wacom *wacom = hid_get_drvdata(hdev); \
778 return scnprintf(buf, PAGE_SIZE, "%d\n", \
779 wacom->led.groups[SET_ID].select); \
781 static DEVICE_ATTR(status_led##SET_ID##_select, DEV_ATTR_RW_PERM, \
782 wacom_led##SET_ID##_select_show, \
783 wacom_led##SET_ID##_select_store)
785 DEVICE_LED_SELECT_ATTR(0);
786 DEVICE_LED_SELECT_ATTR(1);
788 static ssize_t
wacom_luminance_store(struct wacom
*wacom
, u8
*dest
,
789 const char *buf
, size_t count
)
794 err
= kstrtouint(buf
, 10, &value
);
798 mutex_lock(&wacom
->lock
);
800 *dest
= value
& 0x7f;
801 err
= wacom_led_control(wacom
);
803 mutex_unlock(&wacom
->lock
);
805 return err
< 0 ? err
: count
;
808 #define DEVICE_LUMINANCE_ATTR(name, field) \
809 static ssize_t wacom_##name##_luminance_store(struct device *dev, \
810 struct device_attribute *attr, const char *buf, size_t count) \
812 struct hid_device *hdev = to_hid_device(dev);\
813 struct wacom *wacom = hid_get_drvdata(hdev); \
815 return wacom_luminance_store(wacom, &wacom->led.field, \
818 static ssize_t wacom_##name##_luminance_show(struct device *dev, \
819 struct device_attribute *attr, char *buf) \
821 struct wacom *wacom = dev_get_drvdata(dev); \
822 return scnprintf(buf, PAGE_SIZE, "%d\n", wacom->led.field); \
824 static DEVICE_ATTR(name##_luminance, DEV_ATTR_RW_PERM, \
825 wacom_##name##_luminance_show, \
826 wacom_##name##_luminance_store)
828 DEVICE_LUMINANCE_ATTR(status0
, llv
);
829 DEVICE_LUMINANCE_ATTR(status1
, hlv
);
830 DEVICE_LUMINANCE_ATTR(buttons
, img_lum
);
832 static ssize_t
wacom_button_image_store(struct device
*dev
, int button_id
,
833 const char *buf
, size_t count
)
835 struct hid_device
*hdev
= to_hid_device(dev
);
836 struct wacom
*wacom
= hid_get_drvdata(hdev
);
841 if (hdev
->bus
== BUS_BLUETOOTH
) {
843 xfer_id
= WAC_CMD_ICON_BT_XFER
;
846 xfer_id
= WAC_CMD_ICON_XFER
;
852 mutex_lock(&wacom
->lock
);
854 err
= wacom_led_putimage(wacom
, button_id
, xfer_id
, len
, buf
);
856 mutex_unlock(&wacom
->lock
);
858 return err
< 0 ? err
: count
;
861 #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
862 static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
863 struct device_attribute *attr, const char *buf, size_t count) \
865 return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
867 static DEVICE_ATTR(button##BUTTON_ID##_rawimg, DEV_ATTR_WO_PERM, \
868 NULL, wacom_btnimg##BUTTON_ID##_store)
870 DEVICE_BTNIMG_ATTR(0);
871 DEVICE_BTNIMG_ATTR(1);
872 DEVICE_BTNIMG_ATTR(2);
873 DEVICE_BTNIMG_ATTR(3);
874 DEVICE_BTNIMG_ATTR(4);
875 DEVICE_BTNIMG_ATTR(5);
876 DEVICE_BTNIMG_ATTR(6);
877 DEVICE_BTNIMG_ATTR(7);
879 static struct attribute
*cintiq_led_attrs
[] = {
880 &dev_attr_status_led0_select
.attr
,
881 &dev_attr_status_led1_select
.attr
,
885 static struct attribute_group cintiq_led_attr_group
= {
887 .attrs
= cintiq_led_attrs
,
890 static struct attribute
*intuos4_led_attrs
[] = {
891 &dev_attr_status0_luminance
.attr
,
892 &dev_attr_status1_luminance
.attr
,
893 &dev_attr_status_led0_select
.attr
,
894 &dev_attr_buttons_luminance
.attr
,
895 &dev_attr_button0_rawimg
.attr
,
896 &dev_attr_button1_rawimg
.attr
,
897 &dev_attr_button2_rawimg
.attr
,
898 &dev_attr_button3_rawimg
.attr
,
899 &dev_attr_button4_rawimg
.attr
,
900 &dev_attr_button5_rawimg
.attr
,
901 &dev_attr_button6_rawimg
.attr
,
902 &dev_attr_button7_rawimg
.attr
,
906 static struct attribute_group intuos4_led_attr_group
= {
908 .attrs
= intuos4_led_attrs
,
911 static struct attribute
*intuos5_led_attrs
[] = {
912 &dev_attr_status0_luminance
.attr
,
913 &dev_attr_status_led0_select
.attr
,
917 static struct attribute_group intuos5_led_attr_group
= {
919 .attrs
= intuos5_led_attrs
,
922 struct wacom_sysfs_group_devres
{
923 struct attribute_group
*group
;
924 struct kobject
*root
;
927 static void wacom_devm_sysfs_group_release(struct device
*dev
, void *res
)
929 struct wacom_sysfs_group_devres
*devres
= res
;
930 struct kobject
*kobj
= devres
->root
;
932 dev_dbg(dev
, "%s: dropping reference to %s\n",
933 __func__
, devres
->group
->name
);
934 sysfs_remove_group(kobj
, devres
->group
);
937 static int __wacom_devm_sysfs_create_group(struct wacom
*wacom
,
938 struct kobject
*root
,
939 struct attribute_group
*group
)
941 struct wacom_sysfs_group_devres
*devres
;
944 devres
= devres_alloc(wacom_devm_sysfs_group_release
,
945 sizeof(struct wacom_sysfs_group_devres
),
950 devres
->group
= group
;
953 error
= sysfs_create_group(devres
->root
, group
);
957 devres_add(&wacom
->hdev
->dev
, devres
);
962 static int wacom_devm_sysfs_create_group(struct wacom
*wacom
,
963 struct attribute_group
*group
)
965 return __wacom_devm_sysfs_create_group(wacom
, &wacom
->hdev
->dev
.kobj
,
969 static void wacom_led_groups_release(void *data
)
971 struct wacom
*wacom
= data
;
973 wacom
->led
.groups
= NULL
;
976 static int wacom_led_groups_allocate(struct wacom
*wacom
, int count
)
978 struct wacom_group_leds
*groups
;
981 groups
= devm_kzalloc(&wacom
->hdev
->dev
,
982 sizeof(struct wacom_group_leds
) * count
,
987 error
= devm_add_action_or_reset(&wacom
->hdev
->dev
,
988 wacom_led_groups_release
,
993 wacom
->led
.groups
= groups
;
998 static int wacom_initialize_leds(struct wacom
*wacom
)
1002 if (!(wacom
->wacom_wac
.features
.device_type
& WACOM_DEVICETYPE_PAD
))
1005 /* Initialize default values */
1006 switch (wacom
->wacom_wac
.features
.type
) {
1011 wacom
->led
.llv
= 10;
1012 wacom
->led
.hlv
= 20;
1013 wacom
->led
.img_lum
= 10;
1015 error
= wacom_led_groups_allocate(wacom
, 1);
1017 hid_err(wacom
->hdev
,
1018 "cannot create leds err: %d\n", error
);
1022 error
= wacom_devm_sysfs_create_group(wacom
,
1023 &intuos4_led_attr_group
);
1030 wacom
->led
.img_lum
= 0;
1032 error
= wacom_led_groups_allocate(wacom
, 2);
1034 hid_err(wacom
->hdev
,
1035 "cannot create leds err: %d\n", error
);
1039 error
= wacom_devm_sysfs_create_group(wacom
,
1040 &cintiq_led_attr_group
);
1049 wacom
->led
.llv
= 32;
1051 wacom
->led
.img_lum
= 0;
1053 error
= wacom_led_groups_allocate(wacom
, 1);
1055 hid_err(wacom
->hdev
,
1056 "cannot create leds err: %d\n", error
);
1060 error
= wacom_devm_sysfs_create_group(wacom
,
1061 &intuos5_led_attr_group
);
1065 error
= wacom_led_groups_allocate(wacom
, 5);
1067 hid_err(wacom
->hdev
,
1068 "cannot create leds err: %d\n", error
);
1078 hid_err(wacom
->hdev
,
1079 "cannot create sysfs group err: %d\n", error
);
1082 wacom_led_control(wacom
);
1087 static enum power_supply_property wacom_battery_props
[] = {
1088 POWER_SUPPLY_PROP_PRESENT
,
1089 POWER_SUPPLY_PROP_STATUS
,
1090 POWER_SUPPLY_PROP_SCOPE
,
1091 POWER_SUPPLY_PROP_CAPACITY
1094 static enum power_supply_property wacom_ac_props
[] = {
1095 POWER_SUPPLY_PROP_PRESENT
,
1096 POWER_SUPPLY_PROP_ONLINE
,
1097 POWER_SUPPLY_PROP_SCOPE
,
1100 static int wacom_battery_get_property(struct power_supply
*psy
,
1101 enum power_supply_property psp
,
1102 union power_supply_propval
*val
)
1104 struct wacom
*wacom
= power_supply_get_drvdata(psy
);
1108 case POWER_SUPPLY_PROP_PRESENT
:
1109 val
->intval
= wacom
->wacom_wac
.bat_connected
;
1111 case POWER_SUPPLY_PROP_SCOPE
:
1112 val
->intval
= POWER_SUPPLY_SCOPE_DEVICE
;
1114 case POWER_SUPPLY_PROP_CAPACITY
:
1116 wacom
->wacom_wac
.battery_capacity
;
1118 case POWER_SUPPLY_PROP_STATUS
:
1119 if (wacom
->wacom_wac
.bat_charging
)
1120 val
->intval
= POWER_SUPPLY_STATUS_CHARGING
;
1121 else if (wacom
->wacom_wac
.battery_capacity
== 100 &&
1122 wacom
->wacom_wac
.ps_connected
)
1123 val
->intval
= POWER_SUPPLY_STATUS_FULL
;
1124 else if (wacom
->wacom_wac
.ps_connected
)
1125 val
->intval
= POWER_SUPPLY_STATUS_NOT_CHARGING
;
1127 val
->intval
= POWER_SUPPLY_STATUS_DISCHARGING
;
1137 static int wacom_ac_get_property(struct power_supply
*psy
,
1138 enum power_supply_property psp
,
1139 union power_supply_propval
*val
)
1141 struct wacom
*wacom
= power_supply_get_drvdata(psy
);
1145 case POWER_SUPPLY_PROP_PRESENT
:
1147 case POWER_SUPPLY_PROP_ONLINE
:
1148 val
->intval
= wacom
->wacom_wac
.ps_connected
;
1150 case POWER_SUPPLY_PROP_SCOPE
:
1151 val
->intval
= POWER_SUPPLY_SCOPE_DEVICE
;
1160 static int wacom_initialize_battery(struct wacom
*wacom
)
1162 static atomic_t battery_no
= ATOMIC_INIT(0);
1163 struct device
*dev
= &wacom
->hdev
->dev
;
1164 struct power_supply_config psy_cfg
= { .drv_data
= wacom
, };
1165 struct power_supply_desc
*bat_desc
= &wacom
->battery_desc
;
1169 if (!devres_open_group(dev
, bat_desc
, GFP_KERNEL
))
1172 if (wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_BATTERY
) {
1173 struct power_supply_desc
*ac_desc
= &wacom
->ac_desc
;
1174 n
= atomic_inc_return(&battery_no
) - 1;
1176 bat_desc
->properties
= wacom_battery_props
;
1177 bat_desc
->num_properties
= ARRAY_SIZE(wacom_battery_props
);
1178 bat_desc
->get_property
= wacom_battery_get_property
;
1179 sprintf(wacom
->wacom_wac
.bat_name
, "wacom_battery_%ld", n
);
1180 bat_desc
->name
= wacom
->wacom_wac
.bat_name
;
1181 bat_desc
->type
= POWER_SUPPLY_TYPE_BATTERY
;
1182 bat_desc
->use_for_apm
= 0;
1184 ac_desc
->properties
= wacom_ac_props
;
1185 ac_desc
->num_properties
= ARRAY_SIZE(wacom_ac_props
);
1186 ac_desc
->get_property
= wacom_ac_get_property
;
1187 sprintf(wacom
->wacom_wac
.ac_name
, "wacom_ac_%ld", n
);
1188 ac_desc
->name
= wacom
->wacom_wac
.ac_name
;
1189 ac_desc
->type
= POWER_SUPPLY_TYPE_MAINS
;
1190 ac_desc
->use_for_apm
= 0;
1192 wacom
->battery
= devm_power_supply_register(dev
,
1193 &wacom
->battery_desc
,
1195 if (IS_ERR(wacom
->battery
)) {
1196 error
= PTR_ERR(wacom
->battery
);
1200 power_supply_powers(wacom
->battery
, &wacom
->hdev
->dev
);
1202 wacom
->ac
= devm_power_supply_register(dev
,
1205 if (IS_ERR(wacom
->ac
)) {
1206 error
= PTR_ERR(wacom
->ac
);
1210 power_supply_powers(wacom
->ac
, &wacom
->hdev
->dev
);
1213 devres_close_group(dev
, bat_desc
);
1217 devres_release_group(dev
, bat_desc
);
1221 static void wacom_destroy_battery(struct wacom
*wacom
)
1223 if (wacom
->battery
) {
1224 devres_release_group(&wacom
->hdev
->dev
, &wacom
->battery_desc
);
1225 wacom
->battery
= NULL
;
1230 static ssize_t
wacom_show_speed(struct device
*dev
,
1231 struct device_attribute
1234 struct hid_device
*hdev
= to_hid_device(dev
);
1235 struct wacom
*wacom
= hid_get_drvdata(hdev
);
1237 return snprintf(buf
, PAGE_SIZE
, "%i\n", wacom
->wacom_wac
.bt_high_speed
);
1240 static ssize_t
wacom_store_speed(struct device
*dev
,
1241 struct device_attribute
*attr
,
1242 const char *buf
, size_t count
)
1244 struct hid_device
*hdev
= to_hid_device(dev
);
1245 struct wacom
*wacom
= hid_get_drvdata(hdev
);
1248 if (kstrtou8(buf
, 0, &new_speed
))
1251 if (new_speed
!= 0 && new_speed
!= 1)
1254 wacom_bt_query_tablet_data(hdev
, new_speed
, &wacom
->wacom_wac
.features
);
1259 static DEVICE_ATTR(speed
, DEV_ATTR_RW_PERM
,
1260 wacom_show_speed
, wacom_store_speed
);
1263 static ssize_t
wacom_show_remote_mode(struct kobject
*kobj
,
1264 struct kobj_attribute
*kattr
,
1265 char *buf
, int index
)
1267 struct device
*dev
= kobj_to_dev(kobj
->parent
);
1268 struct hid_device
*hdev
= to_hid_device(dev
);
1269 struct wacom
*wacom
= hid_get_drvdata(hdev
);
1272 mode
= wacom
->led
.groups
[index
].select
;
1273 if (mode
>= 0 && mode
< 3)
1274 return snprintf(buf
, PAGE_SIZE
, "%d\n", mode
);
1276 return snprintf(buf
, PAGE_SIZE
, "%d\n", -1);
1279 #define DEVICE_EKR_ATTR_GROUP(SET_ID) \
1280 static ssize_t wacom_show_remote##SET_ID##_mode(struct kobject *kobj, \
1281 struct kobj_attribute *kattr, char *buf) \
1283 return wacom_show_remote_mode(kobj, kattr, buf, SET_ID); \
1285 static struct kobj_attribute remote##SET_ID##_mode_attr = { \
1286 .attr = {.name = "remote_mode", \
1287 .mode = DEV_ATTR_RO_PERM}, \
1288 .show = wacom_show_remote##SET_ID##_mode, \
1290 static struct attribute *remote##SET_ID##_serial_attrs[] = { \
1291 &remote##SET_ID##_mode_attr.attr, \
1294 static struct attribute_group remote##SET_ID##_serial_group = { \
1296 .attrs = remote##SET_ID##_serial_attrs, \
1299 DEVICE_EKR_ATTR_GROUP(0);
1300 DEVICE_EKR_ATTR_GROUP(1);
1301 DEVICE_EKR_ATTR_GROUP(2);
1302 DEVICE_EKR_ATTR_GROUP(3);
1303 DEVICE_EKR_ATTR_GROUP(4);
1305 static int wacom_remote_create_attr_group(struct wacom
*wacom
, __u32 serial
,
1309 struct wacom_remote
*remote
= wacom
->remote
;
1311 remote
->remotes
[index
].group
.name
= devm_kasprintf(&wacom
->hdev
->dev
,
1314 if (!remote
->remotes
[index
].group
.name
)
1317 error
= __wacom_devm_sysfs_create_group(wacom
, remote
->remote_dir
,
1318 &remote
->remotes
[index
].group
);
1320 remote
->remotes
[index
].group
.name
= NULL
;
1321 hid_err(wacom
->hdev
,
1322 "cannot create sysfs group err: %d\n", error
);
1329 static int wacom_cmd_unpair_remote(struct wacom
*wacom
, unsigned char selector
)
1331 const size_t buf_size
= 2;
1335 buf
= kzalloc(buf_size
, GFP_KERNEL
);
1339 buf
[0] = WAC_CMD_DELETE_PAIRING
;
1342 retval
= wacom_set_report(wacom
->hdev
, HID_OUTPUT_REPORT
, buf
,
1343 buf_size
, WAC_CMD_RETRIES
);
1349 static ssize_t
wacom_store_unpair_remote(struct kobject
*kobj
,
1350 struct kobj_attribute
*attr
,
1351 const char *buf
, size_t count
)
1353 unsigned char selector
= 0;
1354 struct device
*dev
= kobj_to_dev(kobj
->parent
);
1355 struct hid_device
*hdev
= to_hid_device(dev
);
1356 struct wacom
*wacom
= hid_get_drvdata(hdev
);
1359 if (!strncmp(buf
, "*\n", 2)) {
1360 selector
= WAC_CMD_UNPAIR_ALL
;
1362 hid_info(wacom
->hdev
, "remote: unrecognized unpair code: %s\n",
1367 mutex_lock(&wacom
->lock
);
1369 err
= wacom_cmd_unpair_remote(wacom
, selector
);
1370 mutex_unlock(&wacom
->lock
);
1372 return err
< 0 ? err
: count
;
1375 static struct kobj_attribute unpair_remote_attr
= {
1376 .attr
= {.name
= "unpair_remote", .mode
= 0200},
1377 .store
= wacom_store_unpair_remote
,
1380 static const struct attribute
*remote_unpair_attrs
[] = {
1381 &unpair_remote_attr
.attr
,
1385 static void wacom_remotes_destroy(void *data
)
1387 struct wacom
*wacom
= data
;
1388 struct wacom_remote
*remote
= wacom
->remote
;
1393 kobject_put(remote
->remote_dir
);
1394 kfifo_free(&remote
->remote_fifo
);
1395 wacom
->remote
= NULL
;
1398 static int wacom_initialize_remotes(struct wacom
*wacom
)
1401 struct wacom_remote
*remote
;
1404 if (wacom
->wacom_wac
.features
.type
!= REMOTE
)
1407 remote
= devm_kzalloc(&wacom
->hdev
->dev
, sizeof(*wacom
->remote
),
1412 wacom
->remote
= remote
;
1414 spin_lock_init(&remote
->remote_lock
);
1416 error
= kfifo_alloc(&remote
->remote_fifo
,
1417 5 * sizeof(struct wacom_remote_data
),
1420 hid_err(wacom
->hdev
, "failed allocating remote_fifo\n");
1424 remote
->remotes
[0].group
= remote0_serial_group
;
1425 remote
->remotes
[1].group
= remote1_serial_group
;
1426 remote
->remotes
[2].group
= remote2_serial_group
;
1427 remote
->remotes
[3].group
= remote3_serial_group
;
1428 remote
->remotes
[4].group
= remote4_serial_group
;
1430 remote
->remote_dir
= kobject_create_and_add("wacom_remote",
1431 &wacom
->hdev
->dev
.kobj
);
1432 if (!remote
->remote_dir
)
1435 error
= sysfs_create_files(remote
->remote_dir
, remote_unpair_attrs
);
1438 hid_err(wacom
->hdev
,
1439 "cannot create sysfs group err: %d\n", error
);
1443 for (i
= 0; i
< WACOM_MAX_REMOTES
; i
++) {
1444 wacom
->led
.groups
[i
].select
= WACOM_STATUS_UNKNOWN
;
1445 remote
->remotes
[i
].serial
= 0;
1448 error
= devm_add_action_or_reset(&wacom
->hdev
->dev
,
1449 wacom_remotes_destroy
, wacom
);
1456 static struct input_dev
*wacom_allocate_input(struct wacom
*wacom
)
1458 struct input_dev
*input_dev
;
1459 struct hid_device
*hdev
= wacom
->hdev
;
1460 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
1462 input_dev
= devm_input_allocate_device(&hdev
->dev
);
1466 input_dev
->name
= wacom_wac
->features
.name
;
1467 input_dev
->phys
= hdev
->phys
;
1468 input_dev
->dev
.parent
= &hdev
->dev
;
1469 input_dev
->open
= wacom_open
;
1470 input_dev
->close
= wacom_close
;
1471 input_dev
->uniq
= hdev
->uniq
;
1472 input_dev
->id
.bustype
= hdev
->bus
;
1473 input_dev
->id
.vendor
= hdev
->vendor
;
1474 input_dev
->id
.product
= wacom_wac
->pid
? wacom_wac
->pid
: hdev
->product
;
1475 input_dev
->id
.version
= hdev
->version
;
1476 input_set_drvdata(input_dev
, wacom
);
1481 static int wacom_allocate_inputs(struct wacom
*wacom
)
1483 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
1485 wacom_wac
->pen_input
= wacom_allocate_input(wacom
);
1486 wacom_wac
->touch_input
= wacom_allocate_input(wacom
);
1487 wacom_wac
->pad_input
= wacom_allocate_input(wacom
);
1488 if (!wacom_wac
->pen_input
||
1489 !wacom_wac
->touch_input
||
1490 !wacom_wac
->pad_input
)
1493 wacom_wac
->pen_input
->name
= wacom_wac
->pen_name
;
1494 wacom_wac
->touch_input
->name
= wacom_wac
->touch_name
;
1495 wacom_wac
->pad_input
->name
= wacom_wac
->pad_name
;
1500 static int wacom_register_inputs(struct wacom
*wacom
)
1502 struct input_dev
*pen_input_dev
, *touch_input_dev
, *pad_input_dev
;
1503 struct wacom_wac
*wacom_wac
= &(wacom
->wacom_wac
);
1506 pen_input_dev
= wacom_wac
->pen_input
;
1507 touch_input_dev
= wacom_wac
->touch_input
;
1508 pad_input_dev
= wacom_wac
->pad_input
;
1510 if (!pen_input_dev
|| !touch_input_dev
|| !pad_input_dev
)
1513 error
= wacom_setup_pen_input_capabilities(pen_input_dev
, wacom_wac
);
1515 /* no pen in use on this interface */
1516 input_free_device(pen_input_dev
);
1517 wacom_wac
->pen_input
= NULL
;
1518 pen_input_dev
= NULL
;
1520 error
= input_register_device(pen_input_dev
);
1525 error
= wacom_setup_touch_input_capabilities(touch_input_dev
, wacom_wac
);
1527 /* no touch in use on this interface */
1528 input_free_device(touch_input_dev
);
1529 wacom_wac
->touch_input
= NULL
;
1530 touch_input_dev
= NULL
;
1532 error
= input_register_device(touch_input_dev
);
1537 error
= wacom_setup_pad_input_capabilities(pad_input_dev
, wacom_wac
);
1539 /* no pad in use on this interface */
1540 input_free_device(pad_input_dev
);
1541 wacom_wac
->pad_input
= NULL
;
1542 pad_input_dev
= NULL
;
1544 error
= input_register_device(pad_input_dev
);
1552 wacom_wac
->pad_input
= NULL
;
1553 wacom_wac
->touch_input
= NULL
;
1554 wacom_wac
->pen_input
= NULL
;
1559 * Not all devices report physical dimensions from HID.
1560 * Compute the default from hardcoded logical dimension
1561 * and resolution before driver overwrites them.
1563 static void wacom_set_default_phy(struct wacom_features
*features
)
1565 if (features
->x_resolution
) {
1566 features
->x_phy
= (features
->x_max
* 100) /
1567 features
->x_resolution
;
1568 features
->y_phy
= (features
->y_max
* 100) /
1569 features
->y_resolution
;
1573 static void wacom_calculate_res(struct wacom_features
*features
)
1575 /* set unit to "100th of a mm" for devices not reported by HID */
1576 if (!features
->unit
) {
1577 features
->unit
= 0x11;
1578 features
->unitExpo
= -3;
1581 features
->x_resolution
= wacom_calc_hid_res(features
->x_max
,
1584 features
->unitExpo
);
1585 features
->y_resolution
= wacom_calc_hid_res(features
->y_max
,
1588 features
->unitExpo
);
1591 void wacom_battery_work(struct work_struct
*work
)
1593 struct wacom
*wacom
= container_of(work
, struct wacom
, battery_work
);
1595 if ((wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_BATTERY
) &&
1597 wacom_initialize_battery(wacom
);
1599 else if (!(wacom
->wacom_wac
.features
.quirks
& WACOM_QUIRK_BATTERY
) &&
1601 wacom_destroy_battery(wacom
);
1605 static size_t wacom_compute_pktlen(struct hid_device
*hdev
)
1607 struct hid_report_enum
*report_enum
;
1608 struct hid_report
*report
;
1611 report_enum
= hdev
->report_enum
+ HID_INPUT_REPORT
;
1613 list_for_each_entry(report
, &report_enum
->report_list
, list
) {
1614 size_t report_size
= hid_report_len(report
);
1615 if (report_size
> size
)
1622 static void wacom_update_name(struct wacom
*wacom
, const char *suffix
)
1624 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
1625 struct wacom_features
*features
= &wacom_wac
->features
;
1626 char name
[WACOM_NAME_MAX
];
1628 /* Generic devices name unspecified */
1629 if ((features
->type
== HID_GENERIC
) && !strcmp("Wacom HID", features
->name
)) {
1630 if (strstr(wacom
->hdev
->name
, "Wacom") ||
1631 strstr(wacom
->hdev
->name
, "wacom") ||
1632 strstr(wacom
->hdev
->name
, "WACOM")) {
1633 /* name is in HID descriptor, use it */
1634 strlcpy(name
, wacom
->hdev
->name
, sizeof(name
));
1636 /* strip out excess whitespaces */
1638 char *gap
= strstr(name
, " ");
1641 /* shift everything including the terminator */
1642 memmove(gap
, gap
+1, strlen(gap
));
1644 /* get rid of trailing whitespace */
1645 if (name
[strlen(name
)-1] == ' ')
1646 name
[strlen(name
)-1] = '\0';
1648 /* no meaningful name retrieved. use product ID */
1649 snprintf(name
, sizeof(name
),
1650 "%s %X", features
->name
, wacom
->hdev
->product
);
1653 strlcpy(name
, features
->name
, sizeof(name
));
1656 /* Append the device type to the name */
1657 snprintf(wacom_wac
->pen_name
, sizeof(wacom_wac
->pen_name
),
1658 "%s%s Pen", name
, suffix
);
1659 snprintf(wacom_wac
->touch_name
, sizeof(wacom_wac
->touch_name
),
1660 "%s%s Finger", name
, suffix
);
1661 snprintf(wacom_wac
->pad_name
, sizeof(wacom_wac
->pad_name
),
1662 "%s%s Pad", name
, suffix
);
1665 static void wacom_release_resources(struct wacom
*wacom
)
1667 struct hid_device
*hdev
= wacom
->hdev
;
1669 if (!wacom
->resources
)
1672 devres_release_group(&hdev
->dev
, wacom
);
1674 wacom
->resources
= false;
1676 wacom
->wacom_wac
.pen_input
= NULL
;
1677 wacom
->wacom_wac
.touch_input
= NULL
;
1678 wacom
->wacom_wac
.pad_input
= NULL
;
1681 static int wacom_parse_and_register(struct wacom
*wacom
, bool wireless
)
1683 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
1684 struct wacom_features
*features
= &wacom_wac
->features
;
1685 struct hid_device
*hdev
= wacom
->hdev
;
1687 unsigned int connect_mask
= HID_CONNECT_HIDRAW
;
1689 features
->pktlen
= wacom_compute_pktlen(hdev
);
1690 if (features
->pktlen
> WACOM_PKGLEN_MAX
)
1693 if (!devres_open_group(&hdev
->dev
, wacom
, GFP_KERNEL
))
1696 wacom
->resources
= true;
1698 error
= wacom_allocate_inputs(wacom
);
1703 * Bamboo Pad has a generic hid handling for the Pen, and we switch it
1704 * into debug mode for the touch part.
1705 * We ignore the other interfaces.
1707 if (features
->type
== BAMBOO_PAD
) {
1708 if (features
->pktlen
== WACOM_PKGLEN_PENABLED
) {
1709 features
->type
= HID_GENERIC
;
1710 } else if ((features
->pktlen
!= WACOM_PKGLEN_BPAD_TOUCH
) &&
1711 (features
->pktlen
!= WACOM_PKGLEN_BPAD_TOUCH_USB
)) {
1717 /* set the default size in case we do not get them from hid */
1718 wacom_set_default_phy(features
);
1720 /* Retrieve the physical and logical size for touch devices */
1721 wacom_retrieve_hid_descriptor(hdev
, features
);
1722 wacom_setup_device_quirks(wacom
);
1724 if (features
->device_type
== WACOM_DEVICETYPE_NONE
&&
1725 features
->type
!= WIRELESS
) {
1726 error
= features
->type
== HID_GENERIC
? -ENODEV
: 0;
1728 dev_warn(&hdev
->dev
, "Unknown device_type for '%s'. %s.",
1730 error
? "Ignoring" : "Assuming pen");
1735 features
->device_type
|= WACOM_DEVICETYPE_PEN
;
1738 wacom_calculate_res(features
);
1740 wacom_update_name(wacom
, wireless
? " (WL)" : "");
1742 error
= wacom_add_shared_data(hdev
);
1746 if (!(features
->device_type
& WACOM_DEVICETYPE_WL_MONITOR
) &&
1747 (features
->quirks
& WACOM_QUIRK_BATTERY
)) {
1748 error
= wacom_initialize_battery(wacom
);
1753 error
= wacom_register_inputs(wacom
);
1757 if (wacom
->wacom_wac
.features
.device_type
& WACOM_DEVICETYPE_PAD
) {
1758 error
= wacom_initialize_leds(wacom
);
1762 error
= wacom_initialize_remotes(wacom
);
1767 if (features
->type
== HID_GENERIC
)
1768 connect_mask
|= HID_CONNECT_DRIVER
;
1770 /* Regular HID work starts now */
1771 error
= hid_hw_start(hdev
, connect_mask
);
1773 hid_err(hdev
, "hw start failed\n");
1778 /* Note that if query fails it is not a hard failure */
1779 wacom_query_tablet_data(hdev
, features
);
1782 /* touch only Bamboo doesn't support pen */
1783 if ((features
->type
== BAMBOO_TOUCH
) &&
1784 (features
->device_type
& WACOM_DEVICETYPE_PEN
)) {
1789 /* pen only Bamboo neither support touch nor pad */
1790 if ((features
->type
== BAMBOO_PEN
) &&
1791 ((features
->device_type
& WACOM_DEVICETYPE_TOUCH
) ||
1792 (features
->device_type
& WACOM_DEVICETYPE_PAD
))) {
1797 if (features
->device_type
& WACOM_DEVICETYPE_WL_MONITOR
)
1798 error
= hid_hw_open(hdev
);
1800 if ((wacom_wac
->features
.type
== INTUOSHT
||
1801 wacom_wac
->features
.type
== INTUOSHT2
) &&
1802 (wacom_wac
->features
.device_type
& WACOM_DEVICETYPE_TOUCH
)) {
1803 wacom_wac
->shared
->type
= wacom_wac
->features
.type
;
1804 wacom_wac
->shared
->touch_input
= wacom_wac
->touch_input
;
1807 devres_close_group(&hdev
->dev
, wacom
);
1814 wacom_release_resources(wacom
);
1818 static void wacom_wireless_work(struct work_struct
*work
)
1820 struct wacom
*wacom
= container_of(work
, struct wacom
, wireless_work
);
1821 struct usb_device
*usbdev
= wacom
->usbdev
;
1822 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
1823 struct hid_device
*hdev1
, *hdev2
;
1824 struct wacom
*wacom1
, *wacom2
;
1825 struct wacom_wac
*wacom_wac1
, *wacom_wac2
;
1829 * Regardless if this is a disconnect or a new tablet,
1830 * remove any existing input and battery devices.
1833 wacom_destroy_battery(wacom
);
1835 /* Stylus interface */
1836 hdev1
= usb_get_intfdata(usbdev
->config
->interface
[1]);
1837 wacom1
= hid_get_drvdata(hdev1
);
1838 wacom_wac1
= &(wacom1
->wacom_wac
);
1839 wacom_release_resources(wacom1
);
1841 /* Touch interface */
1842 hdev2
= usb_get_intfdata(usbdev
->config
->interface
[2]);
1843 wacom2
= hid_get_drvdata(hdev2
);
1844 wacom_wac2
= &(wacom2
->wacom_wac
);
1845 wacom_release_resources(wacom2
);
1847 if (wacom_wac
->pid
== 0) {
1848 hid_info(wacom
->hdev
, "wireless tablet disconnected\n");
1850 const struct hid_device_id
*id
= wacom_ids
;
1852 hid_info(wacom
->hdev
, "wireless tablet connected with PID %x\n",
1856 if (id
->vendor
== USB_VENDOR_ID_WACOM
&&
1857 id
->product
== wacom_wac
->pid
)
1863 hid_info(wacom
->hdev
, "ignoring unknown PID.\n");
1867 /* Stylus interface */
1868 wacom_wac1
->features
=
1869 *((struct wacom_features
*)id
->driver_data
);
1871 wacom_wac1
->pid
= wacom_wac
->pid
;
1873 error
= wacom_parse_and_register(wacom1
, true);
1877 /* Touch interface */
1878 if (wacom_wac1
->features
.touch_max
||
1879 (wacom_wac1
->features
.type
>= INTUOSHT
&&
1880 wacom_wac1
->features
.type
<= BAMBOO_PT
)) {
1881 wacom_wac2
->features
=
1882 *((struct wacom_features
*)id
->driver_data
);
1883 wacom_wac2
->pid
= wacom_wac
->pid
;
1885 error
= wacom_parse_and_register(wacom2
, true);
1890 error
= wacom_initialize_battery(wacom
);
1898 wacom_release_resources(wacom1
);
1899 wacom_release_resources(wacom2
);
1903 static void wacom_remote_destroy_one(struct wacom
*wacom
, unsigned int index
)
1905 struct wacom_remote
*remote
= wacom
->remote
;
1906 u32 serial
= remote
->remotes
[index
].serial
;
1908 unsigned long flags
;
1910 spin_lock_irqsave(&remote
->remote_lock
, flags
);
1911 remote
->remotes
[index
].registered
= false;
1912 spin_unlock_irqrestore(&remote
->remote_lock
, flags
);
1914 if (remote
->remotes
[index
].group
.name
)
1915 devres_release_group(&wacom
->hdev
->dev
,
1916 &remote
->remotes
[index
]);
1918 for (i
= 0; i
< WACOM_MAX_REMOTES
; i
++) {
1919 if (remote
->remotes
[i
].serial
== serial
) {
1920 remote
->remotes
[i
].serial
= 0;
1921 remote
->remotes
[i
].group
.name
= NULL
;
1922 remote
->remotes
[i
].registered
= false;
1923 wacom
->led
.groups
[i
].select
= WACOM_STATUS_UNKNOWN
;
1928 static int wacom_remote_create_one(struct wacom
*wacom
, u32 serial
,
1931 struct wacom_remote
*remote
= wacom
->remote
;
1932 struct device
*dev
= &wacom
->hdev
->dev
;
1935 /* A remote can pair more than once with an EKR,
1936 * check to make sure this serial isn't already paired.
1938 for (k
= 0; k
< WACOM_MAX_REMOTES
; k
++) {
1939 if (remote
->remotes
[k
].serial
== serial
)
1943 if (k
< WACOM_MAX_REMOTES
) {
1944 remote
->remotes
[index
].serial
= serial
;
1948 if (!devres_open_group(dev
, &remote
->remotes
[index
], GFP_KERNEL
))
1951 error
= wacom_remote_create_attr_group(wacom
, serial
, index
);
1955 remote
->remotes
[index
].input
= wacom_allocate_input(wacom
);
1956 if (!remote
->remotes
[index
].input
) {
1960 remote
->remotes
[index
].input
->uniq
= remote
->remotes
[index
].group
.name
;
1961 remote
->remotes
[index
].input
->name
= wacom
->wacom_wac
.pad_name
;
1963 if (!remote
->remotes
[index
].input
->name
) {
1968 error
= wacom_setup_pad_input_capabilities(remote
->remotes
[index
].input
,
1973 remote
->remotes
[index
].serial
= serial
;
1975 error
= input_register_device(remote
->remotes
[index
].input
);
1979 remote
->remotes
[index
].registered
= true;
1981 devres_close_group(dev
, &remote
->remotes
[index
]);
1985 devres_release_group(dev
, &remote
->remotes
[index
]);
1986 remote
->remotes
[index
].serial
= 0;
1990 static void wacom_remote_work(struct work_struct
*work
)
1992 struct wacom
*wacom
= container_of(work
, struct wacom
, remote_work
);
1993 struct wacom_remote
*remote
= wacom
->remote
;
1994 struct wacom_remote_data data
;
1995 unsigned long flags
;
2000 spin_lock_irqsave(&remote
->remote_lock
, flags
);
2002 count
= kfifo_out(&remote
->remote_fifo
, &data
, sizeof(data
));
2004 if (count
!= sizeof(data
)) {
2005 hid_err(wacom
->hdev
,
2006 "workitem triggered without status available\n");
2007 spin_unlock_irqrestore(&remote
->remote_lock
, flags
);
2011 if (!kfifo_is_empty(&remote
->remote_fifo
))
2012 wacom_schedule_work(&wacom
->wacom_wac
, WACOM_WORKER_REMOTE
);
2014 spin_unlock_irqrestore(&remote
->remote_lock
, flags
);
2016 for (i
= 0; i
< WACOM_MAX_REMOTES
; i
++) {
2017 serial
= data
.remote
[i
].serial
;
2018 if (data
.remote
[i
].connected
) {
2020 if (remote
->remotes
[i
].serial
== serial
)
2023 if (remote
->remotes
[i
].serial
)
2024 wacom_remote_destroy_one(wacom
, i
);
2026 wacom_remote_create_one(wacom
, serial
, i
);
2028 } else if (remote
->remotes
[i
].serial
) {
2029 wacom_remote_destroy_one(wacom
, i
);
2034 static int wacom_probe(struct hid_device
*hdev
,
2035 const struct hid_device_id
*id
)
2037 struct usb_interface
*intf
= to_usb_interface(hdev
->dev
.parent
);
2038 struct usb_device
*dev
= interface_to_usbdev(intf
);
2039 struct wacom
*wacom
;
2040 struct wacom_wac
*wacom_wac
;
2041 struct wacom_features
*features
;
2044 if (!id
->driver_data
)
2047 hdev
->quirks
|= HID_QUIRK_NO_INIT_REPORTS
;
2049 /* hid-core sets this quirk for the boot interface */
2050 hdev
->quirks
&= ~HID_QUIRK_NOGET
;
2052 wacom
= devm_kzalloc(&hdev
->dev
, sizeof(struct wacom
), GFP_KERNEL
);
2056 hid_set_drvdata(hdev
, wacom
);
2059 wacom_wac
= &wacom
->wacom_wac
;
2060 wacom_wac
->features
= *((struct wacom_features
*)id
->driver_data
);
2061 features
= &wacom_wac
->features
;
2063 if (features
->check_for_hid_type
&& features
->hid_type
!= hdev
->type
) {
2068 wacom_wac
->hid_data
.inputmode
= -1;
2069 wacom_wac
->mode_report
= -1;
2071 wacom
->usbdev
= dev
;
2073 mutex_init(&wacom
->lock
);
2074 INIT_WORK(&wacom
->wireless_work
, wacom_wireless_work
);
2075 INIT_WORK(&wacom
->battery_work
, wacom_battery_work
);
2076 INIT_WORK(&wacom
->remote_work
, wacom_remote_work
);
2078 /* ask for the report descriptor to be loaded by HID */
2079 error
= hid_parse(hdev
);
2081 hid_err(hdev
, "parse failed\n");
2085 error
= wacom_parse_and_register(wacom
, false);
2089 if (hdev
->bus
== BUS_BLUETOOTH
) {
2090 error
= device_create_file(&hdev
->dev
, &dev_attr_speed
);
2093 "can't create sysfs speed attribute err: %d\n",
2100 hid_set_drvdata(hdev
, NULL
);
2104 static void wacom_remove(struct hid_device
*hdev
)
2106 struct wacom
*wacom
= hid_get_drvdata(hdev
);
2107 struct wacom_wac
*wacom_wac
= &wacom
->wacom_wac
;
2108 struct wacom_features
*features
= &wacom_wac
->features
;
2110 if (features
->device_type
& WACOM_DEVICETYPE_WL_MONITOR
)
2115 cancel_work_sync(&wacom
->wireless_work
);
2116 cancel_work_sync(&wacom
->battery_work
);
2117 cancel_work_sync(&wacom
->remote_work
);
2118 if (hdev
->bus
== BUS_BLUETOOTH
)
2119 device_remove_file(&hdev
->dev
, &dev_attr_speed
);
2121 hid_set_drvdata(hdev
, NULL
);
2125 static int wacom_resume(struct hid_device
*hdev
)
2127 struct wacom
*wacom
= hid_get_drvdata(hdev
);
2128 struct wacom_features
*features
= &wacom
->wacom_wac
.features
;
2130 mutex_lock(&wacom
->lock
);
2132 /* switch to wacom mode first */
2133 wacom_query_tablet_data(hdev
, features
);
2134 wacom_led_control(wacom
);
2136 mutex_unlock(&wacom
->lock
);
2141 static int wacom_reset_resume(struct hid_device
*hdev
)
2143 return wacom_resume(hdev
);
2145 #endif /* CONFIG_PM */
2147 static struct hid_driver wacom_driver
= {
2149 .id_table
= wacom_ids
,
2150 .probe
= wacom_probe
,
2151 .remove
= wacom_remove
,
2152 .report
= wacom_wac_report
,
2154 .resume
= wacom_resume
,
2155 .reset_resume
= wacom_reset_resume
,
2157 .raw_event
= wacom_raw_event
,
2159 module_hid_driver(wacom_driver
);
2161 MODULE_VERSION(DRIVER_VERSION
);
2162 MODULE_AUTHOR(DRIVER_AUTHOR
);
2163 MODULE_DESCRIPTION(DRIVER_DESC
);
2164 MODULE_LICENSE(DRIVER_LICENSE
);