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",
202 * Interface Descriptor of wacom devices can be incomplete and
203 * inconsistent so wacom_features table is used to store stylus
204 * device's packet lengths, various maximum values, and tablet
205 * resolution based on product ID's.
207 * For devices that contain 2 interfaces, wacom_features table is
208 * inaccurate for the touch interface. Since the Interface Descriptor
209 * for touch interfaces has pretty complete data, this function exists
210 * to query tablet for this missing information instead of hard coding in
211 * an additional table.
213 * A typical Interface Descriptor for a stylus will contain a
214 * boot mouse application collection that is not of interest and this
215 * function will ignore it.
217 * It also contains a digitizer application collection that also is not
218 * of interest since any information it contains would be duplicate
219 * of what is in wacom_features. Usually it defines a report of an array
220 * of bytes that could be used as max length of the stylus packet returned.
221 * If it happens to define a Digitizer-Stylus Physical Collection then
222 * the X and Y logical values contain valid data but it is ignored.
224 * A typical Interface Descriptor for a touch interface will contain a
225 * Digitizer-Finger Physical Collection which will define both logical
226 * X/Y maximum as well as the physical size of tablet. Since touch
227 * interfaces haven't supported pressure or distance, this is enough
228 * information to override invalid values in the wacom_features table.
230 * Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful
231 * data. We deal with them after returning from this function.
233 static void wacom_usage_mapping(struct hid_device *hdev,
234 struct hid_field *field, struct hid_usage *usage)
236 struct wacom *wacom = hid_get_drvdata(hdev);
237 struct wacom_features *features = &wacom->wacom_wac.features;
238 bool finger = WACOM_FINGER_FIELD(field);
239 bool pen = WACOM_PEN_FIELD(field);
242 * Requiring Stylus Usage will ignore boot mouse
243 * X/Y values and some cases of invalid Digitizer X/Y
244 * values commonly reported.
247 features->device_type |= WACOM_DEVICETYPE_PEN;
249 features->device_type |= WACOM_DEVICETYPE_TOUCH;
254 * Bamboo models do not support HID_DG_CONTACTMAX.
255 * And, Bamboo Pen only descriptor contains touch.
257 if (features->type > BAMBOO_PT) {
258 /* ISDv4 touch devices at least supports one touch point */
259 if (finger && !features->touch_max)
260 features->touch_max = 1;
264 * ISDv4 devices which predate HID's adoption of the
265 * HID_DG_BARELSWITCH2 usage use 0x000D0000 in its
266 * position instead. We can accurately detect if a
267 * usage with that value should be HID_DG_BARRELSWITCH2
268 * based on the surrounding usages, which have remained
269 * constant across generations.
271 if (features->type == HID_GENERIC &&
272 usage->hid == 0x000D0000 &&
273 field->application == HID_DG_PEN &&
274 field->physical == HID_DG_STYLUS) {
275 int i = usage->usage_index;
277 if (i-4 >= 0 && i+1 < field->maxusage &&
278 field->usage[i-4].hid == HID_DG_TIPSWITCH &&
279 field->usage[i-3].hid == HID_DG_BARRELSWITCH &&
280 field->usage[i-2].hid == HID_DG_ERASER &&
281 field->usage[i-1].hid == HID_DG_INVERT &&
282 field->usage[i+1].hid == HID_DG_INRANGE) {
283 usage->hid = HID_DG_BARRELSWITCH2;
287 switch (usage->hid) {
289 features->x_max = field->logical_maximum;
291 features->x_phy = field->physical_maximum;
292 if ((features->type != BAMBOO_PT) &&
293 (features->type != BAMBOO_TOUCH)) {
294 features->unit = field->unit;
295 features->unitExpo = field->unit_exponent;
300 features->y_max = field->logical_maximum;
302 features->y_phy = field->physical_maximum;
303 if ((features->type != BAMBOO_PT) &&
304 (features->type != BAMBOO_TOUCH)) {
305 features->unit = field->unit;
306 features->unitExpo = field->unit_exponent;
310 case HID_DG_TIPPRESSURE:
312 features->pressure_max = field->logical_maximum;
316 if (features->type == HID_GENERIC)
317 wacom_wac_usage_mapping(hdev, field, usage);
320 static void wacom_post_parse_hid(struct hid_device *hdev,
321 struct wacom_features *features)
323 struct wacom *wacom = hid_get_drvdata(hdev);
324 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
326 if (features->type == HID_GENERIC) {
327 /* Any last-minute generic device setup */
328 if (wacom_wac->has_mode_change) {
329 if (wacom_wac->is_direct_mode)
330 features->device_type |= WACOM_DEVICETYPE_DIRECT;
332 features->device_type &= ~WACOM_DEVICETYPE_DIRECT;
335 if (features->touch_max > 1) {
336 if (features->device_type & WACOM_DEVICETYPE_DIRECT)
337 input_mt_init_slots(wacom_wac->touch_input,
338 wacom_wac->features.touch_max,
341 input_mt_init_slots(wacom_wac->touch_input,
342 wacom_wac->features.touch_max,
348 static void wacom_parse_hid(struct hid_device *hdev,
349 struct wacom_features *features)
351 struct hid_report_enum *rep_enum;
352 struct hid_report *hreport;
355 /* check features first */
356 rep_enum = &hdev->report_enum[HID_FEATURE_REPORT];
357 list_for_each_entry(hreport, &rep_enum->report_list, list) {
358 for (i = 0; i < hreport->maxfield; i++) {
359 /* Ignore if report count is out of bounds. */
360 if (hreport->field[i]->report_count < 1)
363 for (j = 0; j < hreport->field[i]->maxusage; j++) {
364 wacom_feature_mapping(hdev, hreport->field[i],
365 hreport->field[i]->usage + j);
370 /* now check the input usages */
371 rep_enum = &hdev->report_enum[HID_INPUT_REPORT];
372 list_for_each_entry(hreport, &rep_enum->report_list, list) {
374 if (!hreport->maxfield)
377 for (i = 0; i < hreport->maxfield; i++)
378 for (j = 0; j < hreport->field[i]->maxusage; j++)
379 wacom_usage_mapping(hdev, hreport->field[i],
380 hreport->field[i]->usage + j);
383 wacom_post_parse_hid(hdev, features);
386 static int wacom_hid_set_device_mode(struct hid_device *hdev)
388 struct wacom *wacom = hid_get_drvdata(hdev);
389 struct hid_data *hid_data = &wacom->wacom_wac.hid_data;
390 struct hid_report *r;
391 struct hid_report_enum *re;
393 if (hid_data->inputmode < 0)
396 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
397 r = re->report_id_hash[hid_data->inputmode];
399 r->field[0]->value[hid_data->inputmode_index] = 2;
400 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
405 static int wacom_set_device_mode(struct hid_device *hdev,
406 struct wacom_wac *wacom_wac)
409 struct hid_report *r;
410 struct hid_report_enum *re;
412 int error = -ENOMEM, limit = 0;
414 if (wacom_wac->mode_report < 0)
417 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
418 r = re->report_id_hash[wacom_wac->mode_report];
422 rep_data = hid_alloc_report_buf(r, GFP_KERNEL);
426 length = hid_report_len(r);
429 rep_data[0] = wacom_wac->mode_report;
430 rep_data[1] = wacom_wac->mode_value;
432 error = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data,
435 error = wacom_get_report(hdev, HID_FEATURE_REPORT,
436 rep_data, length, 1);
437 } while (error >= 0 &&
438 rep_data[1] != wacom_wac->mode_report &&
439 limit++ < WAC_MSG_RETRIES);
443 return error < 0 ? error : 0;
446 static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed,
447 struct wacom_features *features)
449 struct wacom *wacom = hid_get_drvdata(hdev);
453 switch (features->type) {
457 ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2,
461 rep_data[0] = speed == 0 ? 0x05 : 0x06;
464 ret = wacom_set_report(hdev, HID_FEATURE_REPORT,
468 wacom->wacom_wac.bt_high_speed = speed;
474 * Note that if the raw queries fail, it's not a hard failure
475 * and it is safe to continue
477 hid_warn(hdev, "failed to poke device, command %d, err %d\n",
482 wacom->wacom_wac.bt_features &= ~0x20;
484 wacom->wacom_wac.bt_features |= 0x20;
487 rep_data[1] = wacom->wacom_wac.bt_features;
489 ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2,
492 wacom->wacom_wac.bt_high_speed = speed;
500 * Switch the tablet into its most-capable mode. Wacom tablets are
501 * typically configured to power-up in a mode which sends mouse-like
502 * reports to the OS. To get absolute position, pressure data, etc.
503 * from the tablet, it is necessary to switch the tablet out of this
504 * mode and into one which sends the full range of tablet data.
506 static int _wacom_query_tablet_data(struct wacom *wacom)
508 struct hid_device *hdev = wacom->hdev;
509 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
510 struct wacom_features *features = &wacom_wac->features;
512 if (hdev->bus == BUS_BLUETOOTH)
513 return wacom_bt_query_tablet_data(hdev, 1, features);
515 if (features->type != HID_GENERIC) {
516 if (features->device_type & WACOM_DEVICETYPE_TOUCH) {
517 if (features->type > TABLETPC) {
518 /* MT Tablet PC touch */
519 wacom_wac->mode_report = 3;
520 wacom_wac->mode_value = 4;
521 } else if (features->type == WACOM_24HDT) {
522 wacom_wac->mode_report = 18;
523 wacom_wac->mode_value = 2;
524 } else if (features->type == WACOM_27QHDT) {
525 wacom_wac->mode_report = 131;
526 wacom_wac->mode_value = 2;
527 } else if (features->type == BAMBOO_PAD) {
528 wacom_wac->mode_report = 2;
529 wacom_wac->mode_value = 2;
531 } else if (features->device_type & WACOM_DEVICETYPE_PEN) {
532 if (features->type <= BAMBOO_PT) {
533 wacom_wac->mode_report = 2;
534 wacom_wac->mode_value = 2;
539 wacom_set_device_mode(hdev, wacom_wac);
541 if (features->type == HID_GENERIC)
542 return wacom_hid_set_device_mode(hdev);
547 static void wacom_retrieve_hid_descriptor(struct hid_device *hdev,
548 struct wacom_features *features)
550 struct wacom *wacom = hid_get_drvdata(hdev);
551 struct usb_interface *intf = wacom->intf;
553 /* default features */
554 features->x_fuzz = 4;
555 features->y_fuzz = 4;
556 features->pressure_fuzz = 0;
557 features->distance_fuzz = 1;
558 features->tilt_fuzz = 1;
561 * The wireless device HID is basic and layout conflicts with
562 * other tablets (monitor and touch interface can look like pen).
563 * Skip the query for this type and modify defaults based on
566 if (features->type == WIRELESS) {
567 if (intf->cur_altsetting->desc.bInterfaceNumber == 0)
568 features->device_type = WACOM_DEVICETYPE_WL_MONITOR;
570 features->device_type = WACOM_DEVICETYPE_NONE;
574 wacom_parse_hid(hdev, features);
577 struct wacom_hdev_data {
578 struct list_head list;
580 struct hid_device *dev;
581 struct wacom_shared shared;
584 static LIST_HEAD(wacom_udev_list);
585 static DEFINE_MUTEX(wacom_udev_list_lock);
587 static bool compare_device_paths(struct hid_device *hdev_a,
588 struct hid_device *hdev_b, char separator)
590 int n1 = strrchr(hdev_a->phys, separator) - hdev_a->phys;
591 int n2 = strrchr(hdev_b->phys, separator) - hdev_b->phys;
593 if (n1 != n2 || n1 <= 0 || n2 <= 0)
596 return !strncmp(hdev_a->phys, hdev_b->phys, n1);
599 static bool wacom_are_sibling(struct hid_device *hdev,
600 struct hid_device *sibling)
602 struct wacom *wacom = hid_get_drvdata(hdev);
603 struct wacom_features *features = &wacom->wacom_wac.features;
604 struct wacom *sibling_wacom = hid_get_drvdata(sibling);
605 struct wacom_features *sibling_features = &sibling_wacom->wacom_wac.features;
606 __u32 oVid = features->oVid ? features->oVid : hdev->vendor;
607 __u32 oPid = features->oPid ? features->oPid : hdev->product;
609 /* The defined oVid/oPid must match that of the sibling */
610 if (features->oVid != HID_ANY_ID && sibling->vendor != oVid)
612 if (features->oPid != HID_ANY_ID && sibling->product != oPid)
616 * Devices with the same VID/PID must share the same physical
617 * device path, while those with different VID/PID must share
618 * the same physical parent device path.
620 if (hdev->vendor == sibling->vendor && hdev->product == sibling->product) {
621 if (!compare_device_paths(hdev, sibling, '/'))
624 if (!compare_device_paths(hdev, sibling, '.'))
628 /* Skip the remaining heuristics unless you are a HID_GENERIC device */
629 if (features->type != HID_GENERIC)
633 * Direct-input devices may not be siblings of indirect-input
636 if ((features->device_type & WACOM_DEVICETYPE_DIRECT) &&
637 !(sibling_features->device_type & WACOM_DEVICETYPE_DIRECT))
641 * Indirect-input devices may not be siblings of direct-input
644 if (!(features->device_type & WACOM_DEVICETYPE_DIRECT) &&
645 (sibling_features->device_type & WACOM_DEVICETYPE_DIRECT))
648 /* Pen devices may only be siblings of touch devices */
649 if ((features->device_type & WACOM_DEVICETYPE_PEN) &&
650 !(sibling_features->device_type & WACOM_DEVICETYPE_TOUCH))
653 /* Touch devices may only be siblings of pen devices */
654 if ((features->device_type & WACOM_DEVICETYPE_TOUCH) &&
655 !(sibling_features->device_type & WACOM_DEVICETYPE_PEN))
659 * No reason could be found for these two devices to NOT be
660 * siblings, so there's a good chance they ARE siblings
665 static struct wacom_hdev_data *wacom_get_hdev_data(struct hid_device *hdev)
667 struct wacom_hdev_data *data;
669 /* Try to find an already-probed interface from the same device */
670 list_for_each_entry(data, &wacom_udev_list, list) {
671 if (compare_device_paths(hdev, data->dev, '/'))
675 /* Fallback to finding devices that appear to be "siblings" */
676 list_for_each_entry(data, &wacom_udev_list, list) {
677 if (wacom_are_sibling(hdev, data->dev)) {
678 kref_get(&data->kref);
686 static void wacom_release_shared_data(struct kref *kref)
688 struct wacom_hdev_data *data =
689 container_of(kref, struct wacom_hdev_data, kref);
691 mutex_lock(&wacom_udev_list_lock);
692 list_del(&data->list);
693 mutex_unlock(&wacom_udev_list_lock);
698 static void wacom_remove_shared_data(void *res)
700 struct wacom *wacom = res;
701 struct wacom_hdev_data *data;
702 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
704 if (wacom_wac->shared) {
705 data = container_of(wacom_wac->shared, struct wacom_hdev_data,
708 if (wacom_wac->shared->touch == wacom->hdev)
709 wacom_wac->shared->touch = NULL;
710 else if (wacom_wac->shared->pen == wacom->hdev)
711 wacom_wac->shared->pen = NULL;
713 kref_put(&data->kref, wacom_release_shared_data);
714 wacom_wac->shared = NULL;
718 static int wacom_add_shared_data(struct hid_device *hdev)
720 struct wacom *wacom = hid_get_drvdata(hdev);
721 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
722 struct wacom_hdev_data *data;
725 mutex_lock(&wacom_udev_list_lock);
727 data = wacom_get_hdev_data(hdev);
729 data = kzalloc(sizeof(struct wacom_hdev_data), GFP_KERNEL);
735 kref_init(&data->kref);
737 list_add_tail(&data->list, &wacom_udev_list);
740 wacom_wac->shared = &data->shared;
742 retval = devm_add_action(&hdev->dev, wacom_remove_shared_data, wacom);
744 mutex_unlock(&wacom_udev_list_lock);
745 wacom_remove_shared_data(wacom);
749 if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH)
750 wacom_wac->shared->touch = hdev;
751 else if (wacom_wac->features.device_type & WACOM_DEVICETYPE_PEN)
752 wacom_wac->shared->pen = hdev;
755 mutex_unlock(&wacom_udev_list_lock);
759 static int wacom_led_control(struct wacom *wacom)
763 unsigned char report_id = WAC_CMD_LED_CONTROL;
766 if (!wacom->led.groups)
769 if (wacom->wacom_wac.pid) { /* wireless connected */
770 report_id = WAC_CMD_WL_LED_CONTROL;
773 else if (wacom->wacom_wac.features.type == INTUOSP2_BT) {
774 report_id = WAC_CMD_WL_INTUOSP2;
777 buf = kzalloc(buf_size, GFP_KERNEL);
781 if (wacom->wacom_wac.features.type == HID_GENERIC) {
782 buf[0] = WAC_CMD_LED_CONTROL_GENERIC;
783 buf[1] = wacom->led.llv;
784 buf[2] = wacom->led.groups[0].select & 0x03;
786 } else if ((wacom->wacom_wac.features.type >= INTUOS5S &&
787 wacom->wacom_wac.features.type <= INTUOSPL)) {
789 * Touch Ring and crop mark LED luminance may take on
790 * one of four values:
791 * 0 = Low; 1 = Medium; 2 = High; 3 = Off
793 int ring_led = wacom->led.groups[0].select & 0x03;
794 int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03;
796 unsigned char led_bits = (crop_lum << 4) | (ring_lum << 2) | (ring_led);
799 if (wacom->wacom_wac.pid) {
800 wacom_get_report(wacom->hdev, HID_FEATURE_REPORT,
801 buf, buf_size, WAC_CMD_RETRIES);
807 else if (wacom->wacom_wac.features.type == INTUOSP2_BT) {
809 buf[4] = 100; // Power Connection LED (ORANGE)
810 buf[5] = 100; // BT Connection LED (BLUE)
811 buf[6] = 100; // Paper Mode (RED?)
812 buf[7] = 100; // Paper Mode (GREEN?)
813 buf[8] = 100; // Paper Mode (BLUE?)
814 buf[9] = wacom->led.llv;
815 buf[10] = wacom->led.groups[0].select & 0x03;
818 int led = wacom->led.groups[0].select | 0x4;
820 if (wacom->wacom_wac.features.type == WACOM_21UX2 ||
821 wacom->wacom_wac.features.type == WACOM_24HD)
822 led |= (wacom->led.groups[1].select << 4) | 0x40;
826 buf[2] = wacom->led.llv;
827 buf[3] = wacom->led.hlv;
828 buf[4] = wacom->led.img_lum;
831 retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, buf_size,
838 static int wacom_led_putimage(struct wacom *wacom, int button_id, u8 xfer_id,
839 const unsigned len, const void *img)
843 const unsigned chunk_len = len / 4; /* 4 chunks are needed to be sent */
845 buf = kzalloc(chunk_len + 3 , GFP_KERNEL);
849 /* Send 'start' command */
850 buf[0] = WAC_CMD_ICON_START;
852 retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2,
858 buf[1] = button_id & 0x07;
859 for (i = 0; i < 4; i++) {
861 memcpy(buf + 3, img + i * chunk_len, chunk_len);
863 retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT,
864 buf, chunk_len + 3, WAC_CMD_RETRIES);
870 buf[0] = WAC_CMD_ICON_START;
872 wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2,
880 static ssize_t wacom_led_select_store(struct device *dev, int set_id,
881 const char *buf, size_t count)
883 struct hid_device *hdev = to_hid_device(dev);
884 struct wacom *wacom = hid_get_drvdata(hdev);
888 err = kstrtouint(buf, 10, &id);
892 mutex_lock(&wacom->lock);
894 wacom->led.groups[set_id].select = id & 0x3;
895 err = wacom_led_control(wacom);
897 mutex_unlock(&wacom->lock);
899 return err < 0 ? err : count;
902 #define DEVICE_LED_SELECT_ATTR(SET_ID) \
903 static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
904 struct device_attribute *attr, const char *buf, size_t count) \
906 return wacom_led_select_store(dev, SET_ID, buf, count); \
908 static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
909 struct device_attribute *attr, char *buf) \
911 struct hid_device *hdev = to_hid_device(dev);\
912 struct wacom *wacom = hid_get_drvdata(hdev); \
913 return scnprintf(buf, PAGE_SIZE, "%d\n", \
914 wacom->led.groups[SET_ID].select); \
916 static DEVICE_ATTR(status_led##SET_ID##_select, DEV_ATTR_RW_PERM, \
917 wacom_led##SET_ID##_select_show, \
918 wacom_led##SET_ID##_select_store)
920 DEVICE_LED_SELECT_ATTR(0);
921 DEVICE_LED_SELECT_ATTR(1);
923 static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest,
924 const char *buf, size_t count)
929 err = kstrtouint(buf, 10, &value);
933 mutex_lock(&wacom->lock);
935 *dest = value & 0x7f;
936 err = wacom_led_control(wacom);
938 mutex_unlock(&wacom->lock);
940 return err < 0 ? err : count;
943 #define DEVICE_LUMINANCE_ATTR(name, field) \
944 static ssize_t wacom_##name##_luminance_store(struct device *dev, \
945 struct device_attribute *attr, const char *buf, size_t count) \
947 struct hid_device *hdev = to_hid_device(dev);\
948 struct wacom *wacom = hid_get_drvdata(hdev); \
950 return wacom_luminance_store(wacom, &wacom->led.field, \
953 static ssize_t wacom_##name##_luminance_show(struct device *dev, \
954 struct device_attribute *attr, char *buf) \
956 struct wacom *wacom = dev_get_drvdata(dev); \
957 return scnprintf(buf, PAGE_SIZE, "%d\n", wacom->led.field); \
959 static DEVICE_ATTR(name##_luminance, DEV_ATTR_RW_PERM, \
960 wacom_##name##_luminance_show, \
961 wacom_##name##_luminance_store)
963 DEVICE_LUMINANCE_ATTR(status0, llv);
964 DEVICE_LUMINANCE_ATTR(status1, hlv);
965 DEVICE_LUMINANCE_ATTR(buttons, img_lum);
967 static ssize_t wacom_button_image_store(struct device *dev, int button_id,
968 const char *buf, size_t count)
970 struct hid_device *hdev = to_hid_device(dev);
971 struct wacom *wacom = hid_get_drvdata(hdev);
976 if (hdev->bus == BUS_BLUETOOTH) {
978 xfer_id = WAC_CMD_ICON_BT_XFER;
981 xfer_id = WAC_CMD_ICON_XFER;
987 mutex_lock(&wacom->lock);
989 err = wacom_led_putimage(wacom, button_id, xfer_id, len, buf);
991 mutex_unlock(&wacom->lock);
993 return err < 0 ? err : count;
996 #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
997 static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
998 struct device_attribute *attr, const char *buf, size_t count) \
1000 return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
1002 static DEVICE_ATTR(button##BUTTON_ID##_rawimg, DEV_ATTR_WO_PERM, \
1003 NULL, wacom_btnimg##BUTTON_ID##_store)
1005 DEVICE_BTNIMG_ATTR(0);
1006 DEVICE_BTNIMG_ATTR(1);
1007 DEVICE_BTNIMG_ATTR(2);
1008 DEVICE_BTNIMG_ATTR(3);
1009 DEVICE_BTNIMG_ATTR(4);
1010 DEVICE_BTNIMG_ATTR(5);
1011 DEVICE_BTNIMG_ATTR(6);
1012 DEVICE_BTNIMG_ATTR(7);
1014 static struct attribute *cintiq_led_attrs[] = {
1015 &dev_attr_status_led0_select.attr,
1016 &dev_attr_status_led1_select.attr,
1020 static struct attribute_group cintiq_led_attr_group = {
1021 .name = "wacom_led",
1022 .attrs = cintiq_led_attrs,
1025 static struct attribute *intuos4_led_attrs[] = {
1026 &dev_attr_status0_luminance.attr,
1027 &dev_attr_status1_luminance.attr,
1028 &dev_attr_status_led0_select.attr,
1029 &dev_attr_buttons_luminance.attr,
1030 &dev_attr_button0_rawimg.attr,
1031 &dev_attr_button1_rawimg.attr,
1032 &dev_attr_button2_rawimg.attr,
1033 &dev_attr_button3_rawimg.attr,
1034 &dev_attr_button4_rawimg.attr,
1035 &dev_attr_button5_rawimg.attr,
1036 &dev_attr_button6_rawimg.attr,
1037 &dev_attr_button7_rawimg.attr,
1041 static struct attribute_group intuos4_led_attr_group = {
1042 .name = "wacom_led",
1043 .attrs = intuos4_led_attrs,
1046 static struct attribute *intuos5_led_attrs[] = {
1047 &dev_attr_status0_luminance.attr,
1048 &dev_attr_status_led0_select.attr,
1052 static struct attribute_group intuos5_led_attr_group = {
1053 .name = "wacom_led",
1054 .attrs = intuos5_led_attrs,
1057 static struct attribute *generic_led_attrs[] = {
1058 &dev_attr_status0_luminance.attr,
1059 &dev_attr_status_led0_select.attr,
1063 static struct attribute_group generic_led_attr_group = {
1064 .name = "wacom_led",
1065 .attrs = generic_led_attrs,
1068 struct wacom_sysfs_group_devres {
1069 struct attribute_group *group;
1070 struct kobject *root;
1073 static void wacom_devm_sysfs_group_release(struct device *dev, void *res)
1075 struct wacom_sysfs_group_devres *devres = res;
1076 struct kobject *kobj = devres->root;
1078 dev_dbg(dev, "%s: dropping reference to %s\n",
1079 __func__, devres->group->name);
1080 sysfs_remove_group(kobj, devres->group);
1083 static int __wacom_devm_sysfs_create_group(struct wacom *wacom,
1084 struct kobject *root,
1085 struct attribute_group *group)
1087 struct wacom_sysfs_group_devres *devres;
1090 devres = devres_alloc(wacom_devm_sysfs_group_release,
1091 sizeof(struct wacom_sysfs_group_devres),
1096 devres->group = group;
1097 devres->root = root;
1099 error = sysfs_create_group(devres->root, group);
1103 devres_add(&wacom->hdev->dev, devres);
1108 static int wacom_devm_sysfs_create_group(struct wacom *wacom,
1109 struct attribute_group *group)
1111 return __wacom_devm_sysfs_create_group(wacom, &wacom->hdev->dev.kobj,
1115 enum led_brightness wacom_leds_brightness_get(struct wacom_led *led)
1117 struct wacom *wacom = led->wacom;
1119 if (wacom->led.max_hlv)
1120 return led->hlv * LED_FULL / wacom->led.max_hlv;
1122 if (wacom->led.max_llv)
1123 return led->llv * LED_FULL / wacom->led.max_llv;
1125 /* device doesn't support brightness tuning */
1129 static enum led_brightness __wacom_led_brightness_get(struct led_classdev *cdev)
1131 struct wacom_led *led = container_of(cdev, struct wacom_led, cdev);
1132 struct wacom *wacom = led->wacom;
1134 if (wacom->led.groups[led->group].select != led->id)
1137 return wacom_leds_brightness_get(led);
1140 static int wacom_led_brightness_set(struct led_classdev *cdev,
1141 enum led_brightness brightness)
1143 struct wacom_led *led = container_of(cdev, struct wacom_led, cdev);
1144 struct wacom *wacom = led->wacom;
1147 mutex_lock(&wacom->lock);
1149 if (!wacom->led.groups || (brightness == LED_OFF &&
1150 wacom->led.groups[led->group].select != led->id)) {
1155 led->llv = wacom->led.llv = wacom->led.max_llv * brightness / LED_FULL;
1156 led->hlv = wacom->led.hlv = wacom->led.max_hlv * brightness / LED_FULL;
1158 wacom->led.groups[led->group].select = led->id;
1160 error = wacom_led_control(wacom);
1163 mutex_unlock(&wacom->lock);
1168 static void wacom_led_readonly_brightness_set(struct led_classdev *cdev,
1169 enum led_brightness brightness)
1173 static int wacom_led_register_one(struct device *dev, struct wacom *wacom,
1174 struct wacom_led *led, unsigned int group,
1175 unsigned int id, bool read_only)
1180 name = devm_kasprintf(dev, GFP_KERNEL,
1189 led->trigger.name = name;
1190 error = devm_led_trigger_register(dev, &led->trigger);
1192 hid_err(wacom->hdev,
1193 "failed to register LED trigger %s: %d\n",
1194 led->cdev.name, error);
1202 led->llv = wacom->led.llv;
1203 led->hlv = wacom->led.hlv;
1204 led->cdev.name = name;
1205 led->cdev.max_brightness = LED_FULL;
1206 led->cdev.flags = LED_HW_PLUGGABLE;
1207 led->cdev.brightness_get = __wacom_led_brightness_get;
1209 led->cdev.brightness_set_blocking = wacom_led_brightness_set;
1210 led->cdev.default_trigger = led->cdev.name;
1212 led->cdev.brightness_set = wacom_led_readonly_brightness_set;
1215 error = devm_led_classdev_register(dev, &led->cdev);
1217 hid_err(wacom->hdev,
1218 "failed to register LED %s: %d\n",
1219 led->cdev.name, error);
1220 led->cdev.name = NULL;
1227 static void wacom_led_groups_release_one(void *data)
1229 struct wacom_group_leds *group = data;
1231 devres_release_group(group->dev, group);
1234 static int wacom_led_groups_alloc_and_register_one(struct device *dev,
1235 struct wacom *wacom,
1236 int group_id, int count,
1239 struct wacom_led *leds;
1242 if (group_id >= wacom->led.count || count <= 0)
1245 if (!devres_open_group(dev, &wacom->led.groups[group_id], GFP_KERNEL))
1248 leds = devm_kzalloc(dev, sizeof(struct wacom_led) * count, GFP_KERNEL);
1254 wacom->led.groups[group_id].leds = leds;
1255 wacom->led.groups[group_id].count = count;
1257 for (i = 0; i < count; i++) {
1258 error = wacom_led_register_one(dev, wacom, &leds[i],
1259 group_id, i, read_only);
1264 wacom->led.groups[group_id].dev = dev;
1266 devres_close_group(dev, &wacom->led.groups[group_id]);
1269 * There is a bug (?) in devm_led_classdev_register() in which its
1270 * increments the refcount of the parent. If the parent is an input
1271 * device, that means the ref count never reaches 0 when
1272 * devm_input_device_release() gets called.
1273 * This means that the LEDs are still there after disconnect.
1274 * Manually force the release of the group so that the leds are released
1275 * once we are done using them.
1277 error = devm_add_action_or_reset(&wacom->hdev->dev,
1278 wacom_led_groups_release_one,
1279 &wacom->led.groups[group_id]);
1286 devres_release_group(dev, &wacom->led.groups[group_id]);
1290 struct wacom_led *wacom_led_find(struct wacom *wacom, unsigned int group_id,
1293 struct wacom_group_leds *group;
1295 if (group_id >= wacom->led.count)
1298 group = &wacom->led.groups[group_id];
1305 return &group->leds[id];
1309 * wacom_led_next: gives the next available led with a wacom trigger.
1311 * returns the next available struct wacom_led which has its default trigger
1312 * or the current one if none is available.
1314 struct wacom_led *wacom_led_next(struct wacom *wacom, struct wacom_led *cur)
1316 struct wacom_led *next_led;
1326 next_led = wacom_led_find(wacom, group, ++next);
1327 if (!next_led || next_led == cur)
1329 } while (next_led->cdev.trigger != &next_led->trigger);
1334 static void wacom_led_groups_release(void *data)
1336 struct wacom *wacom = data;
1338 wacom->led.groups = NULL;
1339 wacom->led.count = 0;
1342 static int wacom_led_groups_allocate(struct wacom *wacom, int count)
1344 struct device *dev = &wacom->hdev->dev;
1345 struct wacom_group_leds *groups;
1348 groups = devm_kzalloc(dev, sizeof(struct wacom_group_leds) * count,
1353 error = devm_add_action_or_reset(dev, wacom_led_groups_release, wacom);
1357 wacom->led.groups = groups;
1358 wacom->led.count = count;
1363 static int wacom_leds_alloc_and_register(struct wacom *wacom, int group_count,
1364 int led_per_group, bool read_only)
1369 if (!wacom->wacom_wac.pad_input)
1372 dev = &wacom->wacom_wac.pad_input->dev;
1374 error = wacom_led_groups_allocate(wacom, group_count);
1378 for (i = 0; i < group_count; i++) {
1379 error = wacom_led_groups_alloc_and_register_one(dev, wacom, i,
1389 int wacom_initialize_leds(struct wacom *wacom)
1393 if (!(wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD))
1396 /* Initialize default values */
1397 switch (wacom->wacom_wac.features.type) {
1399 if (!wacom->generic_has_leds)
1401 wacom->led.llv = 100;
1402 wacom->led.max_llv = 100;
1404 error = wacom_leds_alloc_and_register(wacom, 1, 4, false);
1406 hid_err(wacom->hdev,
1407 "cannot create leds err: %d\n", error);
1411 error = wacom_devm_sysfs_create_group(wacom,
1412 &generic_led_attr_group);
1419 wacom->led.llv = 10;
1420 wacom->led.hlv = 20;
1421 wacom->led.max_llv = 127;
1422 wacom->led.max_hlv = 127;
1423 wacom->led.img_lum = 10;
1425 error = wacom_leds_alloc_and_register(wacom, 1, 4, false);
1427 hid_err(wacom->hdev,
1428 "cannot create leds err: %d\n", error);
1432 error = wacom_devm_sysfs_create_group(wacom,
1433 &intuos4_led_attr_group);
1440 wacom->led.img_lum = 0;
1442 error = wacom_leds_alloc_and_register(wacom, 2, 4, false);
1444 hid_err(wacom->hdev,
1445 "cannot create leds err: %d\n", error);
1449 error = wacom_devm_sysfs_create_group(wacom,
1450 &cintiq_led_attr_group);
1459 wacom->led.llv = 32;
1460 wacom->led.max_llv = 96;
1462 error = wacom_leds_alloc_and_register(wacom, 1, 4, false);
1464 hid_err(wacom->hdev,
1465 "cannot create leds err: %d\n", error);
1469 error = wacom_devm_sysfs_create_group(wacom,
1470 &intuos5_led_attr_group);
1474 wacom->led.llv = 50;
1475 wacom->led.max_llv = 100;
1476 error = wacom_leds_alloc_and_register(wacom, 1, 4, false);
1478 hid_err(wacom->hdev,
1479 "cannot create leds err: %d\n", error);
1485 wacom->led.llv = 255;
1486 wacom->led.max_llv = 255;
1487 error = wacom_led_groups_allocate(wacom, 5);
1489 hid_err(wacom->hdev,
1490 "cannot create leds err: %d\n", error);
1500 hid_err(wacom->hdev,
1501 "cannot create sysfs group err: %d\n", error);
1508 static void wacom_init_work(struct work_struct *work)
1510 struct wacom *wacom = container_of(work, struct wacom, init_work.work);
1512 _wacom_query_tablet_data(wacom);
1513 wacom_led_control(wacom);
1516 static void wacom_query_tablet_data(struct wacom *wacom)
1518 schedule_delayed_work(&wacom->init_work, msecs_to_jiffies(1000));
1521 static enum power_supply_property wacom_battery_props[] = {
1522 POWER_SUPPLY_PROP_MODEL_NAME,
1523 POWER_SUPPLY_PROP_PRESENT,
1524 POWER_SUPPLY_PROP_STATUS,
1525 POWER_SUPPLY_PROP_SCOPE,
1526 POWER_SUPPLY_PROP_CAPACITY
1529 static int wacom_battery_get_property(struct power_supply *psy,
1530 enum power_supply_property psp,
1531 union power_supply_propval *val)
1533 struct wacom_battery *battery = power_supply_get_drvdata(psy);
1537 case POWER_SUPPLY_PROP_MODEL_NAME:
1538 val->strval = battery->wacom->wacom_wac.name;
1540 case POWER_SUPPLY_PROP_PRESENT:
1541 val->intval = battery->bat_connected;
1543 case POWER_SUPPLY_PROP_SCOPE:
1544 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
1546 case POWER_SUPPLY_PROP_CAPACITY:
1547 val->intval = battery->battery_capacity;
1549 case POWER_SUPPLY_PROP_STATUS:
1550 if (battery->bat_charging)
1551 val->intval = POWER_SUPPLY_STATUS_CHARGING;
1552 else if (battery->battery_capacity == 100 &&
1553 battery->ps_connected)
1554 val->intval = POWER_SUPPLY_STATUS_FULL;
1555 else if (battery->ps_connected)
1556 val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
1558 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
1568 static int __wacom_initialize_battery(struct wacom *wacom,
1569 struct wacom_battery *battery)
1571 static atomic_t battery_no = ATOMIC_INIT(0);
1572 struct device *dev = &wacom->hdev->dev;
1573 struct power_supply_config psy_cfg = { .drv_data = battery, };
1574 struct power_supply *ps_bat;
1575 struct power_supply_desc *bat_desc = &battery->bat_desc;
1579 if (!devres_open_group(dev, bat_desc, GFP_KERNEL))
1582 battery->wacom = wacom;
1584 n = atomic_inc_return(&battery_no) - 1;
1586 bat_desc->properties = wacom_battery_props;
1587 bat_desc->num_properties = ARRAY_SIZE(wacom_battery_props);
1588 bat_desc->get_property = wacom_battery_get_property;
1589 sprintf(battery->bat_name, "wacom_battery_%ld", n);
1590 bat_desc->name = battery->bat_name;
1591 bat_desc->type = POWER_SUPPLY_TYPE_USB;
1592 bat_desc->use_for_apm = 0;
1594 ps_bat = devm_power_supply_register(dev, bat_desc, &psy_cfg);
1595 if (IS_ERR(ps_bat)) {
1596 error = PTR_ERR(ps_bat);
1600 power_supply_powers(ps_bat, &wacom->hdev->dev);
1602 battery->battery = ps_bat;
1604 devres_close_group(dev, bat_desc);
1608 devres_release_group(dev, bat_desc);
1612 static int wacom_initialize_battery(struct wacom *wacom)
1614 if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY)
1615 return __wacom_initialize_battery(wacom, &wacom->battery);
1620 static void wacom_destroy_battery(struct wacom *wacom)
1622 if (wacom->battery.battery) {
1623 devres_release_group(&wacom->hdev->dev,
1624 &wacom->battery.bat_desc);
1625 wacom->battery.battery = NULL;
1629 static ssize_t wacom_show_speed(struct device *dev,
1630 struct device_attribute
1633 struct hid_device *hdev = to_hid_device(dev);
1634 struct wacom *wacom = hid_get_drvdata(hdev);
1636 return snprintf(buf, PAGE_SIZE, "%i\n", wacom->wacom_wac.bt_high_speed);
1639 static ssize_t wacom_store_speed(struct device *dev,
1640 struct device_attribute *attr,
1641 const char *buf, size_t count)
1643 struct hid_device *hdev = to_hid_device(dev);
1644 struct wacom *wacom = hid_get_drvdata(hdev);
1647 if (kstrtou8(buf, 0, &new_speed))
1650 if (new_speed != 0 && new_speed != 1)
1653 wacom_bt_query_tablet_data(hdev, new_speed, &wacom->wacom_wac.features);
1658 static DEVICE_ATTR(speed, DEV_ATTR_RW_PERM,
1659 wacom_show_speed, wacom_store_speed);
1662 static ssize_t wacom_show_remote_mode(struct kobject *kobj,
1663 struct kobj_attribute *kattr,
1664 char *buf, int index)
1666 struct device *dev = kobj_to_dev(kobj->parent);
1667 struct hid_device *hdev = to_hid_device(dev);
1668 struct wacom *wacom = hid_get_drvdata(hdev);
1671 mode = wacom->led.groups[index].select;
1672 if (mode >= 0 && mode < 3)
1673 return snprintf(buf, PAGE_SIZE, "%d\n", mode);
1675 return snprintf(buf, PAGE_SIZE, "%d\n", -1);
1678 #define DEVICE_EKR_ATTR_GROUP(SET_ID) \
1679 static ssize_t wacom_show_remote##SET_ID##_mode(struct kobject *kobj, \
1680 struct kobj_attribute *kattr, char *buf) \
1682 return wacom_show_remote_mode(kobj, kattr, buf, SET_ID); \
1684 static struct kobj_attribute remote##SET_ID##_mode_attr = { \
1685 .attr = {.name = "remote_mode", \
1686 .mode = DEV_ATTR_RO_PERM}, \
1687 .show = wacom_show_remote##SET_ID##_mode, \
1689 static struct attribute *remote##SET_ID##_serial_attrs[] = { \
1690 &remote##SET_ID##_mode_attr.attr, \
1693 static struct attribute_group remote##SET_ID##_serial_group = { \
1695 .attrs = remote##SET_ID##_serial_attrs, \
1698 DEVICE_EKR_ATTR_GROUP(0);
1699 DEVICE_EKR_ATTR_GROUP(1);
1700 DEVICE_EKR_ATTR_GROUP(2);
1701 DEVICE_EKR_ATTR_GROUP(3);
1702 DEVICE_EKR_ATTR_GROUP(4);
1704 static int wacom_remote_create_attr_group(struct wacom *wacom, __u32 serial,
1708 struct wacom_remote *remote = wacom->remote;
1710 remote->remotes[index].group.name = devm_kasprintf(&wacom->hdev->dev,
1713 if (!remote->remotes[index].group.name)
1716 error = __wacom_devm_sysfs_create_group(wacom, remote->remote_dir,
1717 &remote->remotes[index].group);
1719 remote->remotes[index].group.name = NULL;
1720 hid_err(wacom->hdev,
1721 "cannot create sysfs group err: %d\n", error);
1728 static int wacom_cmd_unpair_remote(struct wacom *wacom, unsigned char selector)
1730 const size_t buf_size = 2;
1734 buf = kzalloc(buf_size, GFP_KERNEL);
1738 buf[0] = WAC_CMD_DELETE_PAIRING;
1741 retval = wacom_set_report(wacom->hdev, HID_OUTPUT_REPORT, buf,
1742 buf_size, WAC_CMD_RETRIES);
1748 static ssize_t wacom_store_unpair_remote(struct kobject *kobj,
1749 struct kobj_attribute *attr,
1750 const char *buf, size_t count)
1752 unsigned char selector = 0;
1753 struct device *dev = kobj_to_dev(kobj->parent);
1754 struct hid_device *hdev = to_hid_device(dev);
1755 struct wacom *wacom = hid_get_drvdata(hdev);
1758 if (!strncmp(buf, "*\n", 2)) {
1759 selector = WAC_CMD_UNPAIR_ALL;
1761 hid_info(wacom->hdev, "remote: unrecognized unpair code: %s\n",
1766 mutex_lock(&wacom->lock);
1768 err = wacom_cmd_unpair_remote(wacom, selector);
1769 mutex_unlock(&wacom->lock);
1771 return err < 0 ? err : count;
1774 static struct kobj_attribute unpair_remote_attr = {
1775 .attr = {.name = "unpair_remote", .mode = 0200},
1776 .store = wacom_store_unpair_remote,
1779 static const struct attribute *remote_unpair_attrs[] = {
1780 &unpair_remote_attr.attr,
1784 static void wacom_remotes_destroy(void *data)
1786 struct wacom *wacom = data;
1787 struct wacom_remote *remote = wacom->remote;
1792 kobject_put(remote->remote_dir);
1793 kfifo_free(&remote->remote_fifo);
1794 wacom->remote = NULL;
1797 static int wacom_initialize_remotes(struct wacom *wacom)
1800 struct wacom_remote *remote;
1803 if (wacom->wacom_wac.features.type != REMOTE)
1806 remote = devm_kzalloc(&wacom->hdev->dev, sizeof(*wacom->remote),
1811 wacom->remote = remote;
1813 spin_lock_init(&remote->remote_lock);
1815 error = kfifo_alloc(&remote->remote_fifo,
1816 5 * sizeof(struct wacom_remote_data),
1819 hid_err(wacom->hdev, "failed allocating remote_fifo\n");
1823 remote->remotes[0].group = remote0_serial_group;
1824 remote->remotes[1].group = remote1_serial_group;
1825 remote->remotes[2].group = remote2_serial_group;
1826 remote->remotes[3].group = remote3_serial_group;
1827 remote->remotes[4].group = remote4_serial_group;
1829 remote->remote_dir = kobject_create_and_add("wacom_remote",
1830 &wacom->hdev->dev.kobj);
1831 if (!remote->remote_dir)
1834 error = sysfs_create_files(remote->remote_dir, remote_unpair_attrs);
1837 hid_err(wacom->hdev,
1838 "cannot create sysfs group err: %d\n", error);
1842 for (i = 0; i < WACOM_MAX_REMOTES; i++) {
1843 wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN;
1844 remote->remotes[i].serial = 0;
1847 error = devm_add_action_or_reset(&wacom->hdev->dev,
1848 wacom_remotes_destroy, wacom);
1855 static struct input_dev *wacom_allocate_input(struct wacom *wacom)
1857 struct input_dev *input_dev;
1858 struct hid_device *hdev = wacom->hdev;
1859 struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
1861 input_dev = devm_input_allocate_device(&hdev->dev);
1865 input_dev->name = wacom_wac->features.name;
1866 input_dev->phys = hdev->phys;
1867 input_dev->dev.parent = &hdev->dev;
1868 input_dev->open = wacom_open;
1869 input_dev->close = wacom_close;
1870 input_dev->uniq = hdev->uniq;
1871 input_dev->id.bustype = hdev->bus;
1872 input_dev->id.vendor = hdev->vendor;
1873 input_dev->id.product = wacom_wac->pid ? wacom_wac->pid : hdev->product;
1874 input_dev->id.version = hdev->version;
1875 input_set_drvdata(input_dev, wacom);
1880 static int wacom_allocate_inputs(struct wacom *wacom)
1882 struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
1884 wacom_wac->pen_input = wacom_allocate_input(wacom);
1885 wacom_wac->touch_input = wacom_allocate_input(wacom);
1886 wacom_wac->pad_input = wacom_allocate_input(wacom);
1887 if (!wacom_wac->pen_input ||
1888 !wacom_wac->touch_input ||
1889 !wacom_wac->pad_input)
1892 wacom_wac->pen_input->name = wacom_wac->pen_name;
1893 wacom_wac->touch_input->name = wacom_wac->touch_name;
1894 wacom_wac->pad_input->name = wacom_wac->pad_name;
1899 static int wacom_register_inputs(struct wacom *wacom)
1901 struct input_dev *pen_input_dev, *touch_input_dev, *pad_input_dev;
1902 struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
1905 pen_input_dev = wacom_wac->pen_input;
1906 touch_input_dev = wacom_wac->touch_input;
1907 pad_input_dev = wacom_wac->pad_input;
1909 if (!pen_input_dev || !touch_input_dev || !pad_input_dev)
1912 error = wacom_setup_pen_input_capabilities(pen_input_dev, wacom_wac);
1914 /* no pen in use on this interface */
1915 input_free_device(pen_input_dev);
1916 wacom_wac->pen_input = NULL;
1917 pen_input_dev = NULL;
1919 error = input_register_device(pen_input_dev);
1924 error = wacom_setup_touch_input_capabilities(touch_input_dev, wacom_wac);
1926 /* no touch in use on this interface */
1927 input_free_device(touch_input_dev);
1928 wacom_wac->touch_input = NULL;
1929 touch_input_dev = NULL;
1931 error = input_register_device(touch_input_dev);
1936 error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac);
1938 /* no pad in use on this interface */
1939 input_free_device(pad_input_dev);
1940 wacom_wac->pad_input = NULL;
1941 pad_input_dev = NULL;
1943 error = input_register_device(pad_input_dev);
1951 wacom_wac->pad_input = NULL;
1952 wacom_wac->touch_input = NULL;
1953 wacom_wac->pen_input = NULL;
1958 * Not all devices report physical dimensions from HID.
1959 * Compute the default from hardcoded logical dimension
1960 * and resolution before driver overwrites them.
1962 static void wacom_set_default_phy(struct wacom_features *features)
1964 if (features->x_resolution) {
1965 features->x_phy = (features->x_max * 100) /
1966 features->x_resolution;
1967 features->y_phy = (features->y_max * 100) /
1968 features->y_resolution;
1972 static void wacom_calculate_res(struct wacom_features *features)
1974 /* set unit to "100th of a mm" for devices not reported by HID */
1975 if (!features->unit) {
1976 features->unit = 0x11;
1977 features->unitExpo = -3;
1980 features->x_resolution = wacom_calc_hid_res(features->x_max,
1983 features->unitExpo);
1984 features->y_resolution = wacom_calc_hid_res(features->y_max,
1987 features->unitExpo);
1990 void wacom_battery_work(struct work_struct *work)
1992 struct wacom *wacom = container_of(work, struct wacom, battery_work);
1994 if ((wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) &&
1995 !wacom->battery.battery) {
1996 wacom_initialize_battery(wacom);
1998 else if (!(wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) &&
1999 wacom->battery.battery) {
2000 wacom_destroy_battery(wacom);
2004 static size_t wacom_compute_pktlen(struct hid_device *hdev)
2006 struct hid_report_enum *report_enum;
2007 struct hid_report *report;
2010 report_enum = hdev->report_enum + HID_INPUT_REPORT;
2012 list_for_each_entry(report, &report_enum->report_list, list) {
2013 size_t report_size = hid_report_len(report);
2014 if (report_size > size)
2021 static void wacom_update_name(struct wacom *wacom, const char *suffix)
2023 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2024 struct wacom_features *features = &wacom_wac->features;
2025 char name[WACOM_NAME_MAX];
2027 /* Generic devices name unspecified */
2028 if ((features->type == HID_GENERIC) && !strcmp("Wacom HID", features->name)) {
2029 if (strstr(wacom->hdev->name, "Wacom") ||
2030 strstr(wacom->hdev->name, "wacom") ||
2031 strstr(wacom->hdev->name, "WACOM")) {
2032 /* name is in HID descriptor, use it */
2033 strlcpy(name, wacom->hdev->name, sizeof(name));
2035 /* strip out excess whitespaces */
2037 char *gap = strstr(name, " ");
2040 /* shift everything including the terminator */
2041 memmove(gap, gap+1, strlen(gap));
2044 /* strip off excessive prefixing */
2045 if (strstr(name, "Wacom Co.,Ltd. Wacom ") == name) {
2046 int n = strlen(name);
2047 int x = strlen("Wacom Co.,Ltd. ");
2048 memmove(name, name+x, n-x+1);
2050 if (strstr(name, "Wacom Co., Ltd. Wacom ") == name) {
2051 int n = strlen(name);
2052 int x = strlen("Wacom Co., Ltd. ");
2053 memmove(name, name+x, n-x+1);
2056 /* get rid of trailing whitespace */
2057 if (name[strlen(name)-1] == ' ')
2058 name[strlen(name)-1] = '\0';
2060 /* no meaningful name retrieved. use product ID */
2061 snprintf(name, sizeof(name),
2062 "%s %X", features->name, wacom->hdev->product);
2065 strlcpy(name, features->name, sizeof(name));
2068 snprintf(wacom_wac->name, sizeof(wacom_wac->name), "%s%s",
2071 /* Append the device type to the name */
2072 snprintf(wacom_wac->pen_name, sizeof(wacom_wac->pen_name),
2073 "%s%s Pen", name, suffix);
2074 snprintf(wacom_wac->touch_name, sizeof(wacom_wac->touch_name),
2075 "%s%s Finger", name, suffix);
2076 snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name),
2077 "%s%s Pad", name, suffix);
2080 static void wacom_release_resources(struct wacom *wacom)
2082 struct hid_device *hdev = wacom->hdev;
2084 if (!wacom->resources)
2087 devres_release_group(&hdev->dev, wacom);
2089 wacom->resources = false;
2091 wacom->wacom_wac.pen_input = NULL;
2092 wacom->wacom_wac.touch_input = NULL;
2093 wacom->wacom_wac.pad_input = NULL;
2096 static void wacom_set_shared_values(struct wacom_wac *wacom_wac)
2098 if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH) {
2099 wacom_wac->shared->type = wacom_wac->features.type;
2100 wacom_wac->shared->touch_input = wacom_wac->touch_input;
2103 if (wacom_wac->has_mute_touch_switch) {
2104 wacom_wac->shared->has_mute_touch_switch = true;
2105 wacom_wac->shared->is_touch_on = true;
2108 if (wacom_wac->shared->has_mute_touch_switch &&
2109 wacom_wac->shared->touch_input) {
2110 set_bit(EV_SW, wacom_wac->shared->touch_input->evbit);
2111 input_set_capability(wacom_wac->shared->touch_input, EV_SW,
2116 static int wacom_parse_and_register(struct wacom *wacom, bool wireless)
2118 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2119 struct wacom_features *features = &wacom_wac->features;
2120 struct hid_device *hdev = wacom->hdev;
2122 unsigned int connect_mask = HID_CONNECT_HIDRAW;
2124 features->pktlen = wacom_compute_pktlen(hdev);
2125 if (features->pktlen > WACOM_PKGLEN_MAX)
2128 if (!devres_open_group(&hdev->dev, wacom, GFP_KERNEL))
2131 wacom->resources = true;
2133 error = wacom_allocate_inputs(wacom);
2138 * Bamboo Pad has a generic hid handling for the Pen, and we switch it
2139 * into debug mode for the touch part.
2140 * We ignore the other interfaces.
2142 if (features->type == BAMBOO_PAD) {
2143 if (features->pktlen == WACOM_PKGLEN_PENABLED) {
2144 features->type = HID_GENERIC;
2145 } else if ((features->pktlen != WACOM_PKGLEN_BPAD_TOUCH) &&
2146 (features->pktlen != WACOM_PKGLEN_BPAD_TOUCH_USB)) {
2152 /* set the default size in case we do not get them from hid */
2153 wacom_set_default_phy(features);
2155 /* Retrieve the physical and logical size for touch devices */
2156 wacom_retrieve_hid_descriptor(hdev, features);
2157 wacom_setup_device_quirks(wacom);
2159 if (features->device_type == WACOM_DEVICETYPE_NONE &&
2160 features->type != WIRELESS) {
2161 error = features->type == HID_GENERIC ? -ENODEV : 0;
2163 dev_warn(&hdev->dev, "Unknown device_type for '%s'. %s.",
2165 error ? "Ignoring" : "Assuming pen");
2170 features->device_type |= WACOM_DEVICETYPE_PEN;
2173 wacom_calculate_res(features);
2175 wacom_update_name(wacom, wireless ? " (WL)" : "");
2177 /* pen only Bamboo neither support touch nor pad */
2178 if ((features->type == BAMBOO_PEN) &&
2179 ((features->device_type & WACOM_DEVICETYPE_TOUCH) ||
2180 (features->device_type & WACOM_DEVICETYPE_PAD))) {
2185 error = wacom_add_shared_data(hdev);
2189 if (!(features->device_type & WACOM_DEVICETYPE_WL_MONITOR) &&
2190 (features->quirks & WACOM_QUIRK_BATTERY)) {
2191 error = wacom_initialize_battery(wacom);
2196 error = wacom_register_inputs(wacom);
2200 if (wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD) {
2201 error = wacom_initialize_leds(wacom);
2205 error = wacom_initialize_remotes(wacom);
2210 if (features->type == HID_GENERIC)
2211 connect_mask |= HID_CONNECT_DRIVER;
2213 /* Regular HID work starts now */
2214 error = hid_hw_start(hdev, connect_mask);
2216 hid_err(hdev, "hw start failed\n");
2221 /* Note that if query fails it is not a hard failure */
2222 wacom_query_tablet_data(wacom);
2225 /* touch only Bamboo doesn't support pen */
2226 if ((features->type == BAMBOO_TOUCH) &&
2227 (features->device_type & WACOM_DEVICETYPE_PEN)) {
2228 cancel_delayed_work_sync(&wacom->init_work);
2229 _wacom_query_tablet_data(wacom);
2234 if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR)
2235 error = hid_hw_open(hdev);
2237 wacom_set_shared_values(wacom_wac);
2238 devres_close_group(&hdev->dev, wacom);
2245 wacom_release_resources(wacom);
2249 static void wacom_wireless_work(struct work_struct *work)
2251 struct wacom *wacom = container_of(work, struct wacom, wireless_work);
2252 struct usb_device *usbdev = wacom->usbdev;
2253 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2254 struct hid_device *hdev1, *hdev2;
2255 struct wacom *wacom1, *wacom2;
2256 struct wacom_wac *wacom_wac1, *wacom_wac2;
2260 * Regardless if this is a disconnect or a new tablet,
2261 * remove any existing input and battery devices.
2264 wacom_destroy_battery(wacom);
2266 /* Stylus interface */
2267 hdev1 = usb_get_intfdata(usbdev->config->interface[1]);
2268 wacom1 = hid_get_drvdata(hdev1);
2269 wacom_wac1 = &(wacom1->wacom_wac);
2270 wacom_release_resources(wacom1);
2272 /* Touch interface */
2273 hdev2 = usb_get_intfdata(usbdev->config->interface[2]);
2274 wacom2 = hid_get_drvdata(hdev2);
2275 wacom_wac2 = &(wacom2->wacom_wac);
2276 wacom_release_resources(wacom2);
2278 if (wacom_wac->pid == 0) {
2279 hid_info(wacom->hdev, "wireless tablet disconnected\n");
2281 const struct hid_device_id *id = wacom_ids;
2283 hid_info(wacom->hdev, "wireless tablet connected with PID %x\n",
2287 if (id->vendor == USB_VENDOR_ID_WACOM &&
2288 id->product == wacom_wac->pid)
2294 hid_info(wacom->hdev, "ignoring unknown PID.\n");
2298 /* Stylus interface */
2299 wacom_wac1->features =
2300 *((struct wacom_features *)id->driver_data);
2302 wacom_wac1->pid = wacom_wac->pid;
2304 error = wacom_parse_and_register(wacom1, true);
2308 /* Touch interface */
2309 if (wacom_wac1->features.touch_max ||
2310 (wacom_wac1->features.type >= INTUOSHT &&
2311 wacom_wac1->features.type <= BAMBOO_PT)) {
2312 wacom_wac2->features =
2313 *((struct wacom_features *)id->driver_data);
2314 wacom_wac2->pid = wacom_wac->pid;
2316 error = wacom_parse_and_register(wacom2, true);
2321 strlcpy(wacom_wac->name, wacom_wac1->name,
2322 sizeof(wacom_wac->name));
2323 error = wacom_initialize_battery(wacom);
2331 wacom_release_resources(wacom1);
2332 wacom_release_resources(wacom2);
2336 static void wacom_remote_destroy_one(struct wacom *wacom, unsigned int index)
2338 struct wacom_remote *remote = wacom->remote;
2339 u32 serial = remote->remotes[index].serial;
2341 unsigned long flags;
2343 spin_lock_irqsave(&remote->remote_lock, flags);
2344 remote->remotes[index].registered = false;
2345 spin_unlock_irqrestore(&remote->remote_lock, flags);
2347 if (remote->remotes[index].battery.battery)
2348 devres_release_group(&wacom->hdev->dev,
2349 &remote->remotes[index].battery.bat_desc);
2351 if (remote->remotes[index].group.name)
2352 devres_release_group(&wacom->hdev->dev,
2353 &remote->remotes[index]);
2355 for (i = 0; i < WACOM_MAX_REMOTES; i++) {
2356 if (remote->remotes[i].serial == serial) {
2357 remote->remotes[i].serial = 0;
2358 remote->remotes[i].group.name = NULL;
2359 remote->remotes[i].registered = false;
2360 remote->remotes[i].battery.battery = NULL;
2361 wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN;
2366 static int wacom_remote_create_one(struct wacom *wacom, u32 serial,
2369 struct wacom_remote *remote = wacom->remote;
2370 struct device *dev = &wacom->hdev->dev;
2373 /* A remote can pair more than once with an EKR,
2374 * check to make sure this serial isn't already paired.
2376 for (k = 0; k < WACOM_MAX_REMOTES; k++) {
2377 if (remote->remotes[k].serial == serial)
2381 if (k < WACOM_MAX_REMOTES) {
2382 remote->remotes[index].serial = serial;
2386 if (!devres_open_group(dev, &remote->remotes[index], GFP_KERNEL))
2389 error = wacom_remote_create_attr_group(wacom, serial, index);
2393 remote->remotes[index].input = wacom_allocate_input(wacom);
2394 if (!remote->remotes[index].input) {
2398 remote->remotes[index].input->uniq = remote->remotes[index].group.name;
2399 remote->remotes[index].input->name = wacom->wacom_wac.pad_name;
2401 if (!remote->remotes[index].input->name) {
2406 error = wacom_setup_pad_input_capabilities(remote->remotes[index].input,
2411 remote->remotes[index].serial = serial;
2413 error = input_register_device(remote->remotes[index].input);
2417 error = wacom_led_groups_alloc_and_register_one(
2418 &remote->remotes[index].input->dev,
2419 wacom, index, 3, true);
2423 remote->remotes[index].registered = true;
2425 devres_close_group(dev, &remote->remotes[index]);
2429 devres_release_group(dev, &remote->remotes[index]);
2430 remote->remotes[index].serial = 0;
2434 static int wacom_remote_attach_battery(struct wacom *wacom, int index)
2436 struct wacom_remote *remote = wacom->remote;
2439 if (!remote->remotes[index].registered)
2442 if (remote->remotes[index].battery.battery)
2445 if (wacom->led.groups[index].select == WACOM_STATUS_UNKNOWN)
2448 error = __wacom_initialize_battery(wacom,
2449 &wacom->remote->remotes[index].battery);
2456 static void wacom_remote_work(struct work_struct *work)
2458 struct wacom *wacom = container_of(work, struct wacom, remote_work);
2459 struct wacom_remote *remote = wacom->remote;
2460 struct wacom_remote_data data;
2461 unsigned long flags;
2466 spin_lock_irqsave(&remote->remote_lock, flags);
2468 count = kfifo_out(&remote->remote_fifo, &data, sizeof(data));
2470 if (count != sizeof(data)) {
2471 hid_err(wacom->hdev,
2472 "workitem triggered without status available\n");
2473 spin_unlock_irqrestore(&remote->remote_lock, flags);
2477 if (!kfifo_is_empty(&remote->remote_fifo))
2478 wacom_schedule_work(&wacom->wacom_wac, WACOM_WORKER_REMOTE);
2480 spin_unlock_irqrestore(&remote->remote_lock, flags);
2482 for (i = 0; i < WACOM_MAX_REMOTES; i++) {
2483 serial = data.remote[i].serial;
2484 if (data.remote[i].connected) {
2486 if (remote->remotes[i].serial == serial) {
2487 wacom_remote_attach_battery(wacom, i);
2491 if (remote->remotes[i].serial)
2492 wacom_remote_destroy_one(wacom, i);
2494 wacom_remote_create_one(wacom, serial, i);
2496 } else if (remote->remotes[i].serial) {
2497 wacom_remote_destroy_one(wacom, i);
2502 static void wacom_mode_change_work(struct work_struct *work)
2504 struct wacom *wacom = container_of(work, struct wacom, mode_change_work);
2505 struct wacom_shared *shared = wacom->wacom_wac.shared;
2506 struct wacom *wacom1 = NULL;
2507 struct wacom *wacom2 = NULL;
2508 bool is_direct = wacom->wacom_wac.is_direct_mode;
2512 wacom1 = hid_get_drvdata(shared->pen);
2513 wacom_release_resources(wacom1);
2514 hid_hw_stop(wacom1->hdev);
2515 wacom1->wacom_wac.has_mode_change = true;
2516 wacom1->wacom_wac.is_direct_mode = is_direct;
2519 if (shared->touch) {
2520 wacom2 = hid_get_drvdata(shared->touch);
2521 wacom_release_resources(wacom2);
2522 hid_hw_stop(wacom2->hdev);
2523 wacom2->wacom_wac.has_mode_change = true;
2524 wacom2->wacom_wac.is_direct_mode = is_direct;
2528 error = wacom_parse_and_register(wacom1, false);
2534 error = wacom_parse_and_register(wacom2, false);
2542 static int wacom_probe(struct hid_device *hdev,
2543 const struct hid_device_id *id)
2545 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
2546 struct usb_device *dev = interface_to_usbdev(intf);
2547 struct wacom *wacom;
2548 struct wacom_wac *wacom_wac;
2549 struct wacom_features *features;
2552 if (!id->driver_data)
2555 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
2557 /* hid-core sets this quirk for the boot interface */
2558 hdev->quirks &= ~HID_QUIRK_NOGET;
2560 wacom = devm_kzalloc(&hdev->dev, sizeof(struct wacom), GFP_KERNEL);
2564 hid_set_drvdata(hdev, wacom);
2567 wacom_wac = &wacom->wacom_wac;
2568 wacom_wac->features = *((struct wacom_features *)id->driver_data);
2569 features = &wacom_wac->features;
2571 if (features->check_for_hid_type && features->hid_type != hdev->type) {
2576 wacom_wac->hid_data.inputmode = -1;
2577 wacom_wac->mode_report = -1;
2579 wacom->usbdev = dev;
2581 mutex_init(&wacom->lock);
2582 INIT_DELAYED_WORK(&wacom->init_work, wacom_init_work);
2583 INIT_WORK(&wacom->wireless_work, wacom_wireless_work);
2584 INIT_WORK(&wacom->battery_work, wacom_battery_work);
2585 INIT_WORK(&wacom->remote_work, wacom_remote_work);
2586 INIT_WORK(&wacom->mode_change_work, wacom_mode_change_work);
2588 /* ask for the report descriptor to be loaded by HID */
2589 error = hid_parse(hdev);
2591 hid_err(hdev, "parse failed\n");
2595 error = wacom_parse_and_register(wacom, false);
2599 if (hdev->bus == BUS_BLUETOOTH) {
2600 error = device_create_file(&hdev->dev, &dev_attr_speed);
2603 "can't create sysfs speed attribute err: %d\n",
2610 hid_set_drvdata(hdev, NULL);
2614 static void wacom_remove(struct hid_device *hdev)
2616 struct wacom *wacom = hid_get_drvdata(hdev);
2617 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
2618 struct wacom_features *features = &wacom_wac->features;
2620 if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR)
2625 cancel_delayed_work_sync(&wacom->init_work);
2626 cancel_work_sync(&wacom->wireless_work);
2627 cancel_work_sync(&wacom->battery_work);
2628 cancel_work_sync(&wacom->remote_work);
2629 cancel_work_sync(&wacom->mode_change_work);
2630 if (hdev->bus == BUS_BLUETOOTH)
2631 device_remove_file(&hdev->dev, &dev_attr_speed);
2633 /* make sure we don't trigger the LEDs */
2634 wacom_led_groups_release(wacom);
2636 if (wacom->wacom_wac.features.type != REMOTE)
2637 wacom_release_resources(wacom);
2639 hid_set_drvdata(hdev, NULL);
2643 static int wacom_resume(struct hid_device *hdev)
2645 struct wacom *wacom = hid_get_drvdata(hdev);
2647 mutex_lock(&wacom->lock);
2649 /* switch to wacom mode first */
2650 _wacom_query_tablet_data(wacom);
2651 wacom_led_control(wacom);
2653 mutex_unlock(&wacom->lock);
2658 static int wacom_reset_resume(struct hid_device *hdev)
2660 return wacom_resume(hdev);
2662 #endif /* CONFIG_PM */
2664 static struct hid_driver wacom_driver = {
2666 .id_table = wacom_ids,
2667 .probe = wacom_probe,
2668 .remove = wacom_remove,
2669 .report = wacom_wac_report,
2671 .resume = wacom_resume,
2672 .reset_resume = wacom_reset_resume,
2674 .raw_event = wacom_raw_event,
2676 module_hid_driver(wacom_driver);
2678 MODULE_VERSION(DRIVER_VERSION);
2679 MODULE_AUTHOR(DRIVER_AUTHOR);
2680 MODULE_DESCRIPTION(DRIVER_DESC);
2681 MODULE_LICENSE("GPL");