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Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next
[deliverable/linux.git] / drivers / hid / wacom_sys.c
CommitLineData
3bea733a 1/*
4104d13f 2 * drivers/input/tablet/wacom_sys.c
3bea733a 3 *
232f5693 4 * USB Wacom tablet support - system specific code
3bea733a
PC		 5 */
6
7/*
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.
12 */
13
3bea733a 14#include "wacom_wac.h"
51269fe8 15#include "wacom.h"
b58ba1ba 16#include <linux/input/mt.h>
3bea733a 17
a417ea44 18#define WAC_MSG_RETRIES 5
3bea733a 19
912ca216 20#define WAC_CMD_WL_LED_CONTROL 0x03
5d7e7d47
EH		 21#define WAC_CMD_LED_CONTROL 0x20
22#define WAC_CMD_ICON_START 0x21
23#define WAC_CMD_ICON_XFER 0x23
849e2f06 24#define WAC_CMD_ICON_BT_XFER 0x26
5d7e7d47 25#define WAC_CMD_RETRIES 10
72b236d6
AS		 26#define WAC_CMD_DELETE_PAIRING 0x20
27#define WAC_CMD_UNPAIR_ALL 0xFF
28#define WAC_REMOTE_SERIAL_MAX_STRLEN 9
5d7e7d47 29
e0984bc3
PC		 30#define DEV_ATTR_RW_PERM (S_IRUGO | S_IWUSR | S_IWGRP)
31#define DEV_ATTR_WO_PERM (S_IWUSR | S_IWGRP)
72b236d6 32#define DEV_ATTR_RO_PERM (S_IRUSR | S_IRGRP)
e0984bc3 33
c64d8834
PC		 34static int wacom_get_report(struct hid_device *hdev, u8 type, u8 *buf,
35 size_t size, unsigned int retries)
3bea733a 36{
5d7e7d47
EH		 37 int retval;
38
39 do {
c64d8834 40 retval = hid_hw_raw_request(hdev, buf[0], buf, size, type,
27b20a9d 41 HID_REQ_GET_REPORT);
aef3156d
JG		 42 } while ((retval == -ETIMEDOUT || retval == -EAGAIN) && --retries);
43
44 if (retval < 0)
45 hid_err(hdev, "wacom_get_report: ran out of retries "
46 "(last error = %d)\n", retval);
5d7e7d47
EH		 47
48 return retval;
3bea733a
PC		 49}
50
296b7378
PF		 51static int wacom_set_report(struct hid_device *hdev, u8 type, u8 *buf,
52 size_t size, unsigned int retries)
3bea733a 53{
5d7e7d47
EH		 54 int retval;
55
56 do {
296b7378 57 retval = hid_hw_raw_request(hdev, buf[0], buf, size, type,
27b20a9d 58 HID_REQ_SET_REPORT);
aef3156d
JG		 59 } while ((retval == -ETIMEDOUT || retval == -EAGAIN) && --retries);
60
61 if (retval < 0)
62 hid_err(hdev, "wacom_set_report: ran out of retries "
63 "(last error = %d)\n", retval);
5d7e7d47
EH		 64
65 return retval;
3bea733a
PC		 66}
67
29b47391
BT		 68static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
69 u8 *raw_data, int size)
3bea733a 70{
29b47391 71 struct wacom *wacom = hid_get_drvdata(hdev);
3bea733a 72
29b47391
BT		 73 if (size > WACOM_PKGLEN_MAX)
74 return 1;
3bea733a 75
29b47391 76 memcpy(wacom->wacom_wac.data, raw_data, size);
3bea733a 77
29b47391
BT		 78 wacom_wac_irq(&wacom->wacom_wac, size);
79
80 return 0;
3bea733a
PC		 81}
82
3bea733a
PC		 83static int wacom_open(struct input_dev *dev)
84{
7791bdae 85 struct wacom *wacom = input_get_drvdata(dev);
29b47391 86
dff67416 87 return hid_hw_open(wacom->hdev);
3bea733a
PC		 88}
89
90static void wacom_close(struct input_dev *dev)
91{
7791bdae 92 struct wacom *wacom = input_get_drvdata(dev);
3bea733a 93
29b47391 94 hid_hw_close(wacom->hdev);
3bea733a
PC		 95}
96
115d5e12 97/*
198fdee2 98 * Calculate the resolution of the X or Y axis using hidinput_calc_abs_res.
115d5e12
JG		 99 */
100static int wacom_calc_hid_res(int logical_extents, int physical_extents,
c669fb2b 101 unsigned unit, int exponent)
115d5e12 102{
198fdee2
BT		 103 struct hid_field field = {
104 .logical_maximum = logical_extents,
105 .physical_maximum = physical_extents,
106 .unit = unit,
107 .unit_exponent = exponent,
108 };
109
110 return hidinput_calc_abs_res(&field, ABS_X);
115d5e12
JG		 111}
112
c669fb2b
BT		 113static void wacom_feature_mapping(struct hid_device *hdev,
114 struct hid_field *field, struct hid_usage *usage)
f393ee2b 115{
c669fb2b
BT		 116 struct wacom *wacom = hid_get_drvdata(hdev);
117 struct wacom_features *features = &wacom->wacom_wac.features;
5ae6e89f 118 struct hid_data *hid_data = &wacom->wacom_wac.hid_data;
8ffffd52
BT		 119 u8 *data;
120 int ret;
f393ee2b 121
c669fb2b
BT		 122 switch (usage->hid) {
123 case HID_DG_CONTACTMAX:
124 /* leave touch_max as is if predefined */
8ffffd52
BT		 125 if (!features->touch_max) {
126 /* read manually */
127 data = kzalloc(2, GFP_KERNEL);
128 if (!data)
129 break;
130 data[0] = field->report->id;
131 ret = wacom_get_report(hdev, HID_FEATURE_REPORT,
05e8fd92
JG		 132 data, 2, WAC_CMD_RETRIES);
133 if (ret == 2) {
8ffffd52 134 features->touch_max = data[1];
05e8fd92
JG		 135 } else {
136 features->touch_max = 16;
137 hid_warn(hdev, "wacom_feature_mapping: "
138 "could not get HID_DG_CONTACTMAX, "
139 "defaulting to %d\n",
140 features->touch_max);
141 }
8ffffd52
BT		 142 kfree(data);
143 }
c669fb2b 144 break;
5ae6e89f
BT		 145 case HID_DG_INPUTMODE:
146 /* Ignore if value index is out of bounds. */
147 if (usage->usage_index >= field->report_count) {
148 dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
149 break;
150 }
151
152 hid_data->inputmode = field->report->id;
153 hid_data->inputmode_index = usage->usage_index;
154 break;
f393ee2b
PC		 155 }
156}
157
428f8588
CB		 158/*
159 * Interface Descriptor of wacom devices can be incomplete and
160 * inconsistent so wacom_features table is used to store stylus
161 * device's packet lengths, various maximum values, and tablet
162 * resolution based on product ID's.
163 *
164 * For devices that contain 2 interfaces, wacom_features table is
165 * inaccurate for the touch interface. Since the Interface Descriptor
166 * for touch interfaces has pretty complete data, this function exists
167 * to query tablet for this missing information instead of hard coding in
168 * an additional table.
169 *
170 * A typical Interface Descriptor for a stylus will contain a
171 * boot mouse application collection that is not of interest and this
172 * function will ignore it.
173 *
174 * It also contains a digitizer application collection that also is not
175 * of interest since any information it contains would be duplicate
176 * of what is in wacom_features. Usually it defines a report of an array
177 * of bytes that could be used as max length of the stylus packet returned.
178 * If it happens to define a Digitizer-Stylus Physical Collection then
179 * the X and Y logical values contain valid data but it is ignored.
180 *
181 * A typical Interface Descriptor for a touch interface will contain a
182 * Digitizer-Finger Physical Collection which will define both logical
183 * X/Y maximum as well as the physical size of tablet. Since touch
184 * interfaces haven't supported pressure or distance, this is enough
185 * information to override invalid values in the wacom_features table.
4134361a 186 *
c669fb2b
BT		 187 * Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful
188 * data. We deal with them after returning from this function.
428f8588 189 */
c669fb2b
BT		 190static void wacom_usage_mapping(struct hid_device *hdev,
191 struct hid_field *field, struct hid_usage *usage)
545f4e99 192{
c669fb2b
BT		 193 struct wacom *wacom = hid_get_drvdata(hdev);
194 struct wacom_features *features = &wacom->wacom_wac.features;
d97a5522
BT		 195 bool finger = WACOM_FINGER_FIELD(field);
196 bool pen = WACOM_PEN_FIELD(field);
e9fc413f 197
c669fb2b
BT		 198 /*
199 * Requiring Stylus Usage will ignore boot mouse
200 * X/Y values and some cases of invalid Digitizer X/Y
201 * values commonly reported.
202 */
042628ab 203 if (pen)
aa86b18c 204 features->device_type |= WACOM_DEVICETYPE_PEN;
042628ab 205 else if (finger)
aa86b18c 206 features->device_type |= WACOM_DEVICETYPE_TOUCH;
042628ab 207 else
c669fb2b
BT		 208 return;
209
30ebc1ae
PC		 210 /*
211 * Bamboo models do not support HID_DG_CONTACTMAX.
212 * And, Bamboo Pen only descriptor contains touch.
213 */
214 if (features->type != BAMBOO_PT) {
215 /* ISDv4 touch devices at least supports one touch point */
216 if (finger && !features->touch_max)
217 features->touch_max = 1;
218 }
c669fb2b
BT		 219
220 switch (usage->hid) {
221 case HID_GD_X:
222 features->x_max = field->logical_maximum;
223 if (finger) {
c669fb2b
BT		 224 features->x_phy = field->physical_maximum;
225 if (features->type != BAMBOO_PT) {
226 features->unit = field->unit;
227 features->unitExpo = field->unit_exponent;
545f4e99 228 }
c669fb2b
BT		 229 }
230 break;
231 case HID_GD_Y:
232 features->y_max = field->logical_maximum;
233 if (finger) {
234 features->y_phy = field->physical_maximum;
235 if (features->type != BAMBOO_PT) {
236 features->unit = field->unit;
237 features->unitExpo = field->unit_exponent;
238 }
239 }
240 break;
241 case HID_DG_TIPPRESSURE:
242 if (pen)
243 features->pressure_max = field->logical_maximum;
244 break;
245 }
7704ac93
BT		 246
247 if (features->type == HID_GENERIC)
248 wacom_wac_usage_mapping(hdev, field, usage);
c669fb2b 249}
4134361a 250
b58ba1ba
JG		 251static void wacom_post_parse_hid(struct hid_device *hdev,
252 struct wacom_features *features)
253{
254 struct wacom *wacom = hid_get_drvdata(hdev);
255 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
256
257 if (features->type == HID_GENERIC) {
258 /* Any last-minute generic device setup */
259 if (features->touch_max > 1) {
2a6cdbdd 260 input_mt_init_slots(wacom_wac->touch_input, wacom_wac->features.touch_max,
b58ba1ba
JG		 261 INPUT_MT_DIRECT);
262 }
263 }
264}
265
c669fb2b
BT		 266static void wacom_parse_hid(struct hid_device *hdev,
267 struct wacom_features *features)
268{
269 struct hid_report_enum *rep_enum;
270 struct hid_report *hreport;
271 int i, j;
272
273 /* check features first */
274 rep_enum = &hdev->report_enum[HID_FEATURE_REPORT];
275 list_for_each_entry(hreport, &rep_enum->report_list, list) {
276 for (i = 0; i < hreport->maxfield; i++) {
277 /* Ignore if report count is out of bounds. */
278 if (hreport->field[i]->report_count < 1)
279 continue;
280
281 for (j = 0; j < hreport->field[i]->maxusage; j++) {
282 wacom_feature_mapping(hdev, hreport->field[i],
283 hreport->field[i]->usage + j);
4134361a 284 }
545f4e99
PC		 285 }
286 }
287
c669fb2b
BT		 288 /* now check the input usages */
289 rep_enum = &hdev->report_enum[HID_INPUT_REPORT];
290 list_for_each_entry(hreport, &rep_enum->report_list, list) {
291
292 if (!hreport->maxfield)
293 continue;
294
295 for (i = 0; i < hreport->maxfield; i++)
296 for (j = 0; j < hreport->field[i]->maxusage; j++)
297 wacom_usage_mapping(hdev, hreport->field[i],
298 hreport->field[i]->usage + j);
299 }
b58ba1ba
JG		 300
301 wacom_post_parse_hid(hdev, features);
545f4e99
PC		 302}
303
5ae6e89f
BT		 304static int wacom_hid_set_device_mode(struct hid_device *hdev)
305{
306 struct wacom *wacom = hid_get_drvdata(hdev);
307 struct hid_data *hid_data = &wacom->wacom_wac.hid_data;
308 struct hid_report *r;
309 struct hid_report_enum *re;
310
311 if (hid_data->inputmode < 0)
312 return 0;
313
314 re = &(hdev->report_enum[HID_FEATURE_REPORT]);
315 r = re->report_id_hash[hid_data->inputmode];
316 if (r) {
317 r->field[0]->value[hid_data->inputmode_index] = 2;
318 hid_hw_request(hdev, r, HID_REQ_SET_REPORT);
319 }
320 return 0;
321}
322
27b20a9d
BT		 323static int wacom_set_device_mode(struct hid_device *hdev, int report_id,
324 int length, int mode)
3b7307c2
DT		 325{
326 unsigned char *rep_data;
fe494bc2 327 int error = -ENOMEM, limit = 0;
3b7307c2 328
fe494bc2 329 rep_data = kzalloc(length, GFP_KERNEL);
3b7307c2 330 if (!rep_data)
ec67bbed
PC		 331 return error;
332
fe494bc2 333 do {
9937c026
CB		 334 rep_data[0] = report_id;
335 rep_data[1] = mode;
336
296b7378
PF		 337 error = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data,
338 length, 1);
3cb83157 339 if (error >= 0)
27b20a9d 340 error = wacom_get_report(hdev, HID_FEATURE_REPORT,
c64d8834 341 rep_data, length, 1);
a1c173da 342 } while (error >= 0 && rep_data[1] != mode && limit++ < WAC_MSG_RETRIES);
fe494bc2
JG		 343
344 kfree(rep_data);
345
346 return error < 0 ? error : 0;
347}
348
f81a1295
BT		 349static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed,
350 struct wacom_features *features)
351{
387142bb
BT		 352 struct wacom *wacom = hid_get_drvdata(hdev);
353 int ret;
354 u8 rep_data[2];
355
356 switch (features->type) {
357 case GRAPHIRE_BT:
358 rep_data[0] = 0x03;
359 rep_data[1] = 0x00;
296b7378
PF		 360 ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2,
361 3);
387142bb
BT		 362
363 if (ret >= 0) {
364 rep_data[0] = speed == 0 ? 0x05 : 0x06;
365 rep_data[1] = 0x00;
366
367 ret = wacom_set_report(hdev, HID_FEATURE_REPORT,
296b7378 368 rep_data, 2, 3);
387142bb
BT		 369
370 if (ret >= 0) {
371 wacom->wacom_wac.bt_high_speed = speed;
372 return 0;
373 }
374 }
375
376 /*
377 * Note that if the raw queries fail, it's not a hard failure
378 * and it is safe to continue
379 */
380 hid_warn(hdev, "failed to poke device, command %d, err %d\n",
381 rep_data[0], ret);
382 break;
81af7e61
BT		 383 case INTUOS4WL:
384 if (speed == 1)
385 wacom->wacom_wac.bt_features &= ~0x20;
386 else
387 wacom->wacom_wac.bt_features |= 0x20;
388
389 rep_data[0] = 0x03;
390 rep_data[1] = wacom->wacom_wac.bt_features;
391
296b7378
PF		 392 ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2,
393 1);
81af7e61
BT		 394 if (ret >= 0)
395 wacom->wacom_wac.bt_high_speed = speed;
396 break;
387142bb
BT		 397 }
398
f81a1295
BT		 399 return 0;
400}
401
fe494bc2
JG		 402/*
403 * Switch the tablet into its most-capable mode. Wacom tablets are
404 * typically configured to power-up in a mode which sends mouse-like
405 * reports to the OS. To get absolute position, pressure data, etc.
406 * from the tablet, it is necessary to switch the tablet out of this
407 * mode and into one which sends the full range of tablet data.
408 */
27b20a9d
BT		 409static int wacom_query_tablet_data(struct hid_device *hdev,
410 struct wacom_features *features)
fe494bc2 411{
f81a1295
BT		 412 if (hdev->bus == BUS_BLUETOOTH)
413 return wacom_bt_query_tablet_data(hdev, 1, features);
414
5ae6e89f
BT		 415 if (features->type == HID_GENERIC)
416 return wacom_hid_set_device_mode(hdev);
417
aa86b18c 418 if (features->device_type & WACOM_DEVICETYPE_TOUCH) {
ea2e6024 419 if (features->type > TABLETPC) {
fe494bc2 420 /* MT Tablet PC touch */
27b20a9d 421 return wacom_set_device_mode(hdev, 3, 4, 4);
fe494bc2 422 }
36d3c510 423 else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) {
27b20a9d 424 return wacom_set_device_mode(hdev, 18, 3, 2);
b1e4279e 425 }
500d4160
PC		 426 else if (features->type == WACOM_27QHDT) {
427 return wacom_set_device_mode(hdev, 131, 3, 2);
428 }
8c97a765
BT		 429 else if (features->type == BAMBOO_PAD) {
430 return wacom_set_device_mode(hdev, 2, 2, 2);
431 }
aa86b18c 432 } else if (features->device_type & WACOM_DEVICETYPE_PEN) {
fe494bc2 433 if (features->type <= BAMBOO_PT && features->type != WIRELESS) {
27b20a9d 434 return wacom_set_device_mode(hdev, 2, 2, 2);
1963518b 435 }
ec67bbed 436 }
3b7307c2 437
fe494bc2 438 return 0;
3b7307c2
DT		 439}
440
c669fb2b 441static void wacom_retrieve_hid_descriptor(struct hid_device *hdev,
1963518b 442 struct wacom_features *features)
ec67bbed 443{
27b20a9d
BT		 444 struct wacom *wacom = hid_get_drvdata(hdev);
445 struct usb_interface *intf = wacom->intf;
ec67bbed 446
fed87e65 447 /* default features */
fed87e65
HR		 448 features->x_fuzz = 4;
449 features->y_fuzz = 4;
450 features->pressure_fuzz = 0;
451 features->distance_fuzz = 0;
ec67bbed 452
d3825d51
CB		 453 /*
454 * The wireless device HID is basic and layout conflicts with
455 * other tablets (monitor and touch interface can look like pen).
456 * Skip the query for this type and modify defaults based on
457 * interface number.
458 */
459 if (features->type == WIRELESS) {
3f14a63a 460 if (intf->cur_altsetting->desc.bInterfaceNumber == 0)
ccad85cc 461 features->device_type = WACOM_DEVICETYPE_WL_MONITOR;
3f14a63a 462 else
aa86b18c 463 features->device_type = WACOM_DEVICETYPE_NONE;
3f14a63a 464 return;
d3825d51
CB		 465 }
466
c669fb2b 467 wacom_parse_hid(hdev, features);
ec67bbed
PC		 468}
469
4451e088 470struct wacom_hdev_data {
4492efff
PC		 471 struct list_head list;
472 struct kref kref;
4451e088 473 struct hid_device *dev;
4492efff
PC		 474 struct wacom_shared shared;
475};
476
477static LIST_HEAD(wacom_udev_list);
478static DEFINE_MUTEX(wacom_udev_list_lock);
479
4451e088
BT		 480static bool wacom_are_sibling(struct hid_device *hdev,
481 struct hid_device *sibling)
aea2bf6a 482{
4451e088
BT		 483 struct wacom *wacom = hid_get_drvdata(hdev);
484 struct wacom_features *features = &wacom->wacom_wac.features;
485 int vid = features->oVid;
486 int pid = features->oPid;
487 int n1,n2;
488
489 if (vid == 0 && pid == 0) {
490 vid = hdev->vendor;
491 pid = hdev->product;
492 }
aea2bf6a 493
4451e088
BT		 494 if (vid != sibling->vendor || pid != sibling->product)
495 return false;
aea2bf6a 496
4451e088
BT		 497 /* Compare the physical path. */
498 n1 = strrchr(hdev->phys, '.') - hdev->phys;
499 n2 = strrchr(sibling->phys, '.') - sibling->phys;
500 if (n1 != n2 || n1 <= 0 || n2 <= 0)
501 return false;
aea2bf6a 502
4451e088 503 return !strncmp(hdev->phys, sibling->phys, n1);
aea2bf6a
JG		 504}
505
4451e088 506static struct wacom_hdev_data *wacom_get_hdev_data(struct hid_device *hdev)
4492efff 507{
4451e088 508 struct wacom_hdev_data *data;
4492efff
PC		 509
510 list_for_each_entry(data, &wacom_udev_list, list) {
4451e088 511 if (wacom_are_sibling(hdev, data->dev)) {
4492efff
PC		 512 kref_get(&data->kref);
513 return data;
514 }
515 }
516
517 return NULL;
518}
519
4451e088 520static int wacom_add_shared_data(struct hid_device *hdev)
4492efff 521{
4451e088
BT		 522 struct wacom *wacom = hid_get_drvdata(hdev);
523 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
524 struct wacom_hdev_data *data;
4492efff
PC		 525 int retval = 0;
526
527 mutex_lock(&wacom_udev_list_lock);
528
4451e088 529 data = wacom_get_hdev_data(hdev);
4492efff 530 if (!data) {
4451e088 531 data = kzalloc(sizeof(struct wacom_hdev_data), GFP_KERNEL);
4492efff
PC		 532 if (!data) {
533 retval = -ENOMEM;
534 goto out;
535 }
536
537 kref_init(&data->kref);
4451e088 538 data->dev = hdev;
4492efff
PC		 539 list_add_tail(&data->list, &wacom_udev_list);
540 }
541
4451e088 542 wacom_wac->shared = &data->shared;
4492efff 543
aa86b18c 544 if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH)
a97ac104 545 wacom_wac->shared->touch = hdev;
aa86b18c 546 else if (wacom_wac->features.device_type & WACOM_DEVICETYPE_PEN)
a97ac104
BT		 547 wacom_wac->shared->pen = hdev;
548
4492efff
PC		 549out:
550 mutex_unlock(&wacom_udev_list_lock);
551 return retval;
552}
553
554static void wacom_release_shared_data(struct kref *kref)
555{
4451e088
BT		 556 struct wacom_hdev_data *data =
557 container_of(kref, struct wacom_hdev_data, kref);
4492efff
PC		 558
559 mutex_lock(&wacom_udev_list_lock);
560 list_del(&data->list);
561 mutex_unlock(&wacom_udev_list_lock);
562
563 kfree(data);
564}
565
a97ac104 566static void wacom_remove_shared_data(struct wacom *wacom)
4492efff 567{
4451e088 568 struct wacom_hdev_data *data;
a97ac104
BT		 569 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
570
571 if (wacom_wac->shared) {
572 data = container_of(wacom_wac->shared, struct wacom_hdev_data,
573 shared);
574
575 if (wacom_wac->shared->touch == wacom->hdev)
576 wacom_wac->shared->touch = NULL;
577 else if (wacom_wac->shared->pen == wacom->hdev)
578 wacom_wac->shared->pen = NULL;
4492efff 579
4492efff 580 kref_put(&data->kref, wacom_release_shared_data);
a97ac104 581 wacom_wac->shared = NULL;
4492efff
PC		 582 }
583}
584
5d7e7d47
EH		 585static int wacom_led_control(struct wacom *wacom)
586{
587 unsigned char *buf;
9b5b95dd 588 int retval;
912ca216
PC		 589 unsigned char report_id = WAC_CMD_LED_CONTROL;
590 int buf_size = 9;
5d7e7d47 591
912ca216
PC		 592 if (wacom->wacom_wac.pid) { /* wireless connected */
593 report_id = WAC_CMD_WL_LED_CONTROL;
594 buf_size = 13;
595 }
596 buf = kzalloc(buf_size, GFP_KERNEL);
5d7e7d47
EH		 597 if (!buf)
598 return -ENOMEM;
599
9b5b95dd 600 if (wacom->wacom_wac.features.type >= INTUOS5S &&
9a35c411 601 wacom->wacom_wac.features.type <= INTUOSPL) {
9b5b95dd
JG		 602 /*
603 * Touch Ring and crop mark LED luminance may take on
604 * one of four values:
605 * 0 = Low; 1 = Medium; 2 = High; 3 = Off
606 */
607 int ring_led = wacom->led.select[0] & 0x03;
608 int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03;
609 int crop_lum = 0;
912ca216
PC		 610 unsigned char led_bits = (crop_lum << 4) | (ring_lum << 2) | (ring_led);
611
612 buf[0] = report_id;
613 if (wacom->wacom_wac.pid) {
614 wacom_get_report(wacom->hdev, HID_FEATURE_REPORT,
615 buf, buf_size, WAC_CMD_RETRIES);
616 buf[0] = report_id;
617 buf[4] = led_bits;
618 } else
619 buf[1] = led_bits;
9b5b95dd
JG		 620 }
621 else {
622 int led = wacom->led.select[0] | 0x4;
623
624 if (wacom->wacom_wac.features.type == WACOM_21UX2 ||
625 wacom->wacom_wac.features.type == WACOM_24HD)
626 led |= (wacom->led.select[1] << 4) | 0x40;
627
912ca216 628 buf[0] = report_id;
9b5b95dd
JG		 629 buf[1] = led;
630 buf[2] = wacom->led.llv;
631 buf[3] = wacom->led.hlv;
632 buf[4] = wacom->led.img_lum;
633 }
5d7e7d47 634
912ca216 635 retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, buf_size,
296b7378 636 WAC_CMD_RETRIES);
5d7e7d47
EH		 637 kfree(buf);
638
639 return retval;
640}
641
849e2f06
BT		 642static int wacom_led_putimage(struct wacom *wacom, int button_id, u8 xfer_id,
643 const unsigned len, const void *img)
5d7e7d47
EH		 644{
645 unsigned char *buf;
646 int i, retval;
849e2f06 647 const unsigned chunk_len = len / 4; /* 4 chunks are needed to be sent */
5d7e7d47 648
849e2f06 649 buf = kzalloc(chunk_len + 3 , GFP_KERNEL);
5d7e7d47
EH		 650 if (!buf)
651 return -ENOMEM;
652
653 /* Send 'start' command */
654 buf[0] = WAC_CMD_ICON_START;
655 buf[1] = 1;
296b7378
PF		 656 retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2,
657 WAC_CMD_RETRIES);
5d7e7d47
EH		 658 if (retval < 0)
659 goto out;
660
849e2f06 661 buf[0] = xfer_id;
5d7e7d47
EH		 662 buf[1] = button_id & 0x07;
663 for (i = 0; i < 4; i++) {
664 buf[2] = i;
849e2f06 665 memcpy(buf + 3, img + i * chunk_len, chunk_len);
5d7e7d47 666
27b20a9d 667 retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT,
296b7378 668 buf, chunk_len + 3, WAC_CMD_RETRIES);
5d7e7d47
EH		 669 if (retval < 0)
670 break;
671 }
672
673 /* Send 'stop' */
674 buf[0] = WAC_CMD_ICON_START;
675 buf[1] = 0;
296b7378
PF		 676 wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2,
677 WAC_CMD_RETRIES);
5d7e7d47
EH		 678
679out:
680 kfree(buf);
681 return retval;
682}
683
09e7d941 684static ssize_t wacom_led_select_store(struct device *dev, int set_id,
5d7e7d47
EH		 685 const char *buf, size_t count)
686{
c31a408f 687 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
29b47391 688 struct wacom *wacom = hid_get_drvdata(hdev);
5d7e7d47
EH		 689 unsigned int id;
690 int err;
691
692 err = kstrtouint(buf, 10, &id);
693 if (err)
694 return err;
695
696 mutex_lock(&wacom->lock);
697
09e7d941 698 wacom->led.select[set_id] = id & 0x3;
5d7e7d47
EH		 699 err = wacom_led_control(wacom);
700
701 mutex_unlock(&wacom->lock);
702
703 return err < 0 ? err : count;
704}
705
09e7d941
PC		 706#define DEVICE_LED_SELECT_ATTR(SET_ID) \
707static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \
708 struct device_attribute *attr, const char *buf, size_t count) \
709{ \
710 return wacom_led_select_store(dev, SET_ID, buf, count); \
711} \
04c59abd
PC		 712static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \
713 struct device_attribute *attr, char *buf) \
714{ \
c31a408f 715 struct hid_device *hdev = container_of(dev, struct hid_device, dev);\
29b47391 716 struct wacom *wacom = hid_get_drvdata(hdev); \
37449adc
PC		 717 return scnprintf(buf, PAGE_SIZE, "%d\n", \
718 wacom->led.select[SET_ID]); \
04c59abd 719} \
e0984bc3 720static DEVICE_ATTR(status_led##SET_ID##_select, DEV_ATTR_RW_PERM, \
04c59abd 721 wacom_led##SET_ID##_select_show, \
09e7d941
PC		 722 wacom_led##SET_ID##_select_store)
723
724DEVICE_LED_SELECT_ATTR(0);
725DEVICE_LED_SELECT_ATTR(1);
5d7e7d47
EH		 726
727static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest,
728 const char *buf, size_t count)
729{
730 unsigned int value;
731 int err;
732
733 err = kstrtouint(buf, 10, &value);
734 if (err)
735 return err;
736
737 mutex_lock(&wacom->lock);
738
739 *dest = value & 0x7f;
740 err = wacom_led_control(wacom);
741
742 mutex_unlock(&wacom->lock);
743
744 return err < 0 ? err : count;
745}
746
747#define DEVICE_LUMINANCE_ATTR(name, field) \
748static ssize_t wacom_##name##_luminance_store(struct device *dev, \
749 struct device_attribute *attr, const char *buf, size_t count) \
750{ \
c31a408f 751 struct hid_device *hdev = container_of(dev, struct hid_device, dev);\
29b47391 752 struct wacom *wacom = hid_get_drvdata(hdev); \
5d7e7d47
EH		 753 \
754 return wacom_luminance_store(wacom, &wacom->led.field, \
755 buf, count); \
756} \
37449adc
PC		 757static ssize_t wacom_##name##_luminance_show(struct device *dev, \
758 struct device_attribute *attr, char *buf) \
759{ \
760 struct wacom *wacom = dev_get_drvdata(dev); \
761 return scnprintf(buf, PAGE_SIZE, "%d\n", wacom->led.field); \
762} \
e0984bc3 763static DEVICE_ATTR(name##_luminance, DEV_ATTR_RW_PERM, \
37449adc
PC		 764 wacom_##name##_luminance_show, \
765 wacom_##name##_luminance_store)
5d7e7d47
EH		 766
767DEVICE_LUMINANCE_ATTR(status0, llv);
768DEVICE_LUMINANCE_ATTR(status1, hlv);
769DEVICE_LUMINANCE_ATTR(buttons, img_lum);
770
771static ssize_t wacom_button_image_store(struct device *dev, int button_id,
772 const char *buf, size_t count)
773{
c31a408f 774 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
29b47391 775 struct wacom *wacom = hid_get_drvdata(hdev);
5d7e7d47 776 int err;
849e2f06
BT		 777 unsigned len;
778 u8 xfer_id;
779
780 if (hdev->bus == BUS_BLUETOOTH) {
781 len = 256;
782 xfer_id = WAC_CMD_ICON_BT_XFER;
783 } else {
784 len = 1024;
785 xfer_id = WAC_CMD_ICON_XFER;
786 }
5d7e7d47 787
849e2f06 788 if (count != len)
5d7e7d47
EH		 789 return -EINVAL;
790
791 mutex_lock(&wacom->lock);
792
849e2f06 793 err = wacom_led_putimage(wacom, button_id, xfer_id, len, buf);
5d7e7d47
EH		 794
795 mutex_unlock(&wacom->lock);
796
797 return err < 0 ? err : count;
798}
799
800#define DEVICE_BTNIMG_ATTR(BUTTON_ID) \
801static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \
802 struct device_attribute *attr, const char *buf, size_t count) \
803{ \
804 return wacom_button_image_store(dev, BUTTON_ID, buf, count); \
805} \
e0984bc3 806static DEVICE_ATTR(button##BUTTON_ID##_rawimg, DEV_ATTR_WO_PERM, \
5d7e7d47
EH		 807 NULL, wacom_btnimg##BUTTON_ID##_store)
808
809DEVICE_BTNIMG_ATTR(0);
810DEVICE_BTNIMG_ATTR(1);
811DEVICE_BTNIMG_ATTR(2);
812DEVICE_BTNIMG_ATTR(3);
813DEVICE_BTNIMG_ATTR(4);
814DEVICE_BTNIMG_ATTR(5);
815DEVICE_BTNIMG_ATTR(6);
816DEVICE_BTNIMG_ATTR(7);
817
09e7d941
PC		 818static struct attribute *cintiq_led_attrs[] = {
819 &dev_attr_status_led0_select.attr,
820 &dev_attr_status_led1_select.attr,
821 NULL
822};
823
824static struct attribute_group cintiq_led_attr_group = {
825 .name = "wacom_led",
826 .attrs = cintiq_led_attrs,
827};
828
829static struct attribute *intuos4_led_attrs[] = {
5d7e7d47
EH		 830 &dev_attr_status0_luminance.attr,
831 &dev_attr_status1_luminance.attr,
09e7d941 832 &dev_attr_status_led0_select.attr,
5d7e7d47
EH		 833 &dev_attr_buttons_luminance.attr,
834 &dev_attr_button0_rawimg.attr,
835 &dev_attr_button1_rawimg.attr,
836 &dev_attr_button2_rawimg.attr,
837 &dev_attr_button3_rawimg.attr,
838 &dev_attr_button4_rawimg.attr,
839 &dev_attr_button5_rawimg.attr,
840 &dev_attr_button6_rawimg.attr,
841 &dev_attr_button7_rawimg.attr,
842 NULL
843};
844
09e7d941 845static struct attribute_group intuos4_led_attr_group = {
5d7e7d47 846 .name = "wacom_led",
09e7d941 847 .attrs = intuos4_led_attrs,
5d7e7d47
EH		 848};
849
9b5b95dd
JG		 850static struct attribute *intuos5_led_attrs[] = {
851 &dev_attr_status0_luminance.attr,
852 &dev_attr_status_led0_select.attr,
853 NULL
854};
855
856static struct attribute_group intuos5_led_attr_group = {
857 .name = "wacom_led",
858 .attrs = intuos5_led_attrs,
859};
860
5d7e7d47
EH		 861static int wacom_initialize_leds(struct wacom *wacom)
862{
863 int error;
864
862cf553
JG		 865 if (!(wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD))
866 return 0;
867
09e7d941
PC		 868 /* Initialize default values */
869 switch (wacom->wacom_wac.features.type) {
a19fc986 870 case INTUOS4S:
09e7d941 871 case INTUOS4:
81af7e61 872 case INTUOS4WL:
09e7d941
PC		 873 case INTUOS4L:
874 wacom->led.select[0] = 0;
875 wacom->led.select[1] = 0;
f4fa9a6d 876 wacom->led.llv = 10;
5d7e7d47
EH		 877 wacom->led.hlv = 20;
878 wacom->led.img_lum = 10;
c31a408f 879 error = sysfs_create_group(&wacom->hdev->dev.kobj,
09e7d941
PC		 880 &intuos4_led_attr_group);
881 break;
882
246835fc 883 case WACOM_24HD:
09e7d941
PC		 884 case WACOM_21UX2:
885 wacom->led.select[0] = 0;
886 wacom->led.select[1] = 0;
887 wacom->led.llv = 0;
888 wacom->led.hlv = 0;
889 wacom->led.img_lum = 0;
5d7e7d47 890
c31a408f 891 error = sysfs_create_group(&wacom->hdev->dev.kobj,
09e7d941
PC		 892 &cintiq_led_attr_group);
893 break;
894
9b5b95dd
JG		 895 case INTUOS5S:
896 case INTUOS5:
897 case INTUOS5L:
9a35c411
PC		 898 case INTUOSPS:
899 case INTUOSPM:
900 case INTUOSPL:
862cf553
JG		 901 wacom->led.select[0] = 0;
902 wacom->led.select[1] = 0;
903 wacom->led.llv = 32;
904 wacom->led.hlv = 0;
905 wacom->led.img_lum = 0;
906
907 error = sysfs_create_group(&wacom->hdev->dev.kobj,
908 &intuos5_led_attr_group);
9b5b95dd
JG		 909 break;
910
09e7d941
PC		 911 default:
912 return 0;
5d7e7d47
EH		 913 }
914
09e7d941 915 if (error) {
c31a408f 916 hid_err(wacom->hdev,
09e7d941
PC		 917 "cannot create sysfs group err: %d\n", error);
918 return error;
919 }
920 wacom_led_control(wacom);
c757cbaf 921 wacom->led_initialized = true;
09e7d941 922
5d7e7d47
EH		 923 return 0;
924}
925
926static void wacom_destroy_leds(struct wacom *wacom)
927{
c757cbaf
BT		 928 if (!wacom->led_initialized)
929 return;
930
862cf553
JG		 931 if (!(wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD))
932 return;
933
c757cbaf
BT		 934 wacom->led_initialized = false;
935
09e7d941 936 switch (wacom->wacom_wac.features.type) {
a19fc986 937 case INTUOS4S:
09e7d941 938 case INTUOS4:
81af7e61 939 case INTUOS4WL:
09e7d941 940 case INTUOS4L:
c31a408f 941 sysfs_remove_group(&wacom->hdev->dev.kobj,
09e7d941
PC		 942 &intuos4_led_attr_group);
943 break;
944
246835fc 945 case WACOM_24HD:
09e7d941 946 case WACOM_21UX2:
c31a408f 947 sysfs_remove_group(&wacom->hdev->dev.kobj,
09e7d941
PC		 948 &cintiq_led_attr_group);
949 break;
9b5b95dd
JG		 950
951 case INTUOS5S:
952 case INTUOS5:
953 case INTUOS5L:
9a35c411
PC		 954 case INTUOSPS:
955 case INTUOSPM:
956 case INTUOSPL:
862cf553
JG		 957 sysfs_remove_group(&wacom->hdev->dev.kobj,
958 &intuos5_led_attr_group);
9b5b95dd 959 break;
5d7e7d47
EH		 960 }
961}
962
a1d552cc 963static enum power_supply_property wacom_battery_props[] = {
71fa641e 964 POWER_SUPPLY_PROP_PRESENT,
ac8d1010 965 POWER_SUPPLY_PROP_STATUS,
6e2a6e80 966 POWER_SUPPLY_PROP_SCOPE,
a1d552cc
CB		 967 POWER_SUPPLY_PROP_CAPACITY
968};
969
7dbd229e
BT		 970static enum power_supply_property wacom_ac_props[] = {
971 POWER_SUPPLY_PROP_PRESENT,
972 POWER_SUPPLY_PROP_ONLINE,
973 POWER_SUPPLY_PROP_SCOPE,
974};
975
a1d552cc
CB		 976static int wacom_battery_get_property(struct power_supply *psy,
977 enum power_supply_property psp,
978 union power_supply_propval *val)
979{
297d716f 980 struct wacom *wacom = power_supply_get_drvdata(psy);
a1d552cc
CB		 981 int ret = 0;
982
983 switch (psp) {
71fa641e
JG		 984 case POWER_SUPPLY_PROP_PRESENT:
985 val->intval = wacom->wacom_wac.bat_connected;
986 break;
6e2a6e80
BN		 987 case POWER_SUPPLY_PROP_SCOPE:
988 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
989 break;
a1d552cc
CB		 990 case POWER_SUPPLY_PROP_CAPACITY:
991 val->intval =
ac8d1010
BT		 992 wacom->wacom_wac.battery_capacity;
993 break;
994 case POWER_SUPPLY_PROP_STATUS:
995 if (wacom->wacom_wac.bat_charging)
996 val->intval = POWER_SUPPLY_STATUS_CHARGING;
997 else if (wacom->wacom_wac.battery_capacity == 100 &&
998 wacom->wacom_wac.ps_connected)
999 val->intval = POWER_SUPPLY_STATUS_FULL;
b0882cb7
JG		 1000 else if (wacom->wacom_wac.ps_connected)
1001 val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING;
ac8d1010
BT		 1002 else
1003 val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
a1d552cc
CB		 1004 break;
1005 default:
1006 ret = -EINVAL;
1007 break;
1008 }
1009
1010 return ret;
1011}
1012
7dbd229e
BT		 1013static int wacom_ac_get_property(struct power_supply *psy,
1014 enum power_supply_property psp,
1015 union power_supply_propval *val)
1016{
297d716f 1017 struct wacom *wacom = power_supply_get_drvdata(psy);
7dbd229e
BT		 1018 int ret = 0;
1019
1020 switch (psp) {
1021 case POWER_SUPPLY_PROP_PRESENT:
1022 /* fall through */
1023 case POWER_SUPPLY_PROP_ONLINE:
1024 val->intval = wacom->wacom_wac.ps_connected;
1025 break;
1026 case POWER_SUPPLY_PROP_SCOPE:
1027 val->intval = POWER_SUPPLY_SCOPE_DEVICE;
1028 break;
1029 default:
1030 ret = -EINVAL;
1031 break;
1032 }
1033 return ret;
1034}
1035
a1d552cc
CB		 1036static int wacom_initialize_battery(struct wacom *wacom)
1037{
d70420b9 1038 static atomic_t battery_no = ATOMIC_INIT(0);
297d716f 1039 struct power_supply_config psy_cfg = { .drv_data = wacom, };
d70420b9 1040 unsigned long n;
a1d552cc 1041
ac8d1010 1042 if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) {
297d716f
KK		 1043 struct power_supply_desc *bat_desc = &wacom->battery_desc;
1044 struct power_supply_desc *ac_desc = &wacom->ac_desc;
d70420b9 1045 n = atomic_inc_return(&battery_no) - 1;
7dbd229e 1046
297d716f
KK		 1047 bat_desc->properties = wacom_battery_props;
1048 bat_desc->num_properties = ARRAY_SIZE(wacom_battery_props);
1049 bat_desc->get_property = wacom_battery_get_property;
d70420b9 1050 sprintf(wacom->wacom_wac.bat_name, "wacom_battery_%ld", n);
297d716f
KK		 1051 bat_desc->name = wacom->wacom_wac.bat_name;
1052 bat_desc->type = POWER_SUPPLY_TYPE_BATTERY;
1053 bat_desc->use_for_apm = 0;
a1d552cc 1054
297d716f
KK		 1055 ac_desc->properties = wacom_ac_props;
1056 ac_desc->num_properties = ARRAY_SIZE(wacom_ac_props);
1057 ac_desc->get_property = wacom_ac_get_property;
7dbd229e 1058 sprintf(wacom->wacom_wac.ac_name, "wacom_ac_%ld", n);
297d716f
KK		 1059 ac_desc->name = wacom->wacom_wac.ac_name;
1060 ac_desc->type = POWER_SUPPLY_TYPE_MAINS;
1061 ac_desc->use_for_apm = 0;
1062
1063 wacom->battery = power_supply_register(&wacom->hdev->dev,
1064 &wacom->battery_desc, &psy_cfg);
1065 if (IS_ERR(wacom->battery))
1066 return PTR_ERR(wacom->battery);
1067
1068 power_supply_powers(wacom->battery, &wacom->hdev->dev);
1069
1070 wacom->ac = power_supply_register(&wacom->hdev->dev,
1071 &wacom->ac_desc,
1072 &psy_cfg);
1073 if (IS_ERR(wacom->ac)) {
1074 power_supply_unregister(wacom->battery);
1075 return PTR_ERR(wacom->ac);
7dbd229e
BT		 1076 }
1077
297d716f 1078 power_supply_powers(wacom->ac, &wacom->hdev->dev);
a1d552cc
CB		 1079 }
1080
7dbd229e 1081 return 0;
a1d552cc
CB		 1082}
1083
1084static void wacom_destroy_battery(struct wacom *wacom)
1085{
8de29a35 1086 if (wacom->battery) {
297d716f
KK		 1087 power_supply_unregister(wacom->battery);
1088 wacom->battery = NULL;
1089 power_supply_unregister(wacom->ac);
1090 wacom->ac = NULL;
b7af2bb8 1091 }
a1d552cc
CB		 1092}
1093
f81a1295
BT		 1094static ssize_t wacom_show_speed(struct device *dev,
1095 struct device_attribute
1096 *attr, char *buf)
1097{
1098 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1099 struct wacom *wacom = hid_get_drvdata(hdev);
1100
1101 return snprintf(buf, PAGE_SIZE, "%i\n", wacom->wacom_wac.bt_high_speed);
1102}
1103
1104static ssize_t wacom_store_speed(struct device *dev,
1105 struct device_attribute *attr,
1106 const char *buf, size_t count)
1107{
1108 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1109 struct wacom *wacom = hid_get_drvdata(hdev);
1110 u8 new_speed;
1111
1112 if (kstrtou8(buf, 0, &new_speed))
1113 return -EINVAL;
1114
1115 if (new_speed != 0 && new_speed != 1)
1116 return -EINVAL;
1117
1118 wacom_bt_query_tablet_data(hdev, new_speed, &wacom->wacom_wac.features);
1119
1120 return count;
1121}
1122
e0984bc3 1123static DEVICE_ATTR(speed, DEV_ATTR_RW_PERM,
f81a1295
BT		 1124 wacom_show_speed, wacom_store_speed);
1125
72b236d6
AS		 1126
1127static ssize_t wacom_show_remote_mode(struct kobject *kobj,
1128 struct kobj_attribute *kattr,
1129 char *buf, int index)
1130{
1131 struct device *dev = container_of(kobj->parent, struct device, kobj);
1132 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1133 struct wacom *wacom = hid_get_drvdata(hdev);
1134 u8 mode;
1135
1136 mode = wacom->led.select[index];
1137 if (mode >= 0 && mode < 3)
1138 return snprintf(buf, PAGE_SIZE, "%d\n", mode);
1139 else
1140 return snprintf(buf, PAGE_SIZE, "%d\n", -1);
1141}
1142
1143#define DEVICE_EKR_ATTR_GROUP(SET_ID) \
1144static ssize_t wacom_show_remote##SET_ID##_mode(struct kobject *kobj, \
1145 struct kobj_attribute *kattr, char *buf) \
1146{ \
1147 return wacom_show_remote_mode(kobj, kattr, buf, SET_ID); \
1148} \
1149static struct kobj_attribute remote##SET_ID##_mode_attr = { \
1150 .attr = {.name = "remote_mode", \
1151 .mode = DEV_ATTR_RO_PERM}, \
1152 .show = wacom_show_remote##SET_ID##_mode, \
1153}; \
1154static struct attribute *remote##SET_ID##_serial_attrs[] = { \
1155 &remote##SET_ID##_mode_attr.attr, \
1156 NULL \
1157}; \
1158static struct attribute_group remote##SET_ID##_serial_group = { \
1159 .name = NULL, \
1160 .attrs = remote##SET_ID##_serial_attrs, \
1161}
1162
1163DEVICE_EKR_ATTR_GROUP(0);
1164DEVICE_EKR_ATTR_GROUP(1);
1165DEVICE_EKR_ATTR_GROUP(2);
1166DEVICE_EKR_ATTR_GROUP(3);
1167DEVICE_EKR_ATTR_GROUP(4);
1168
1169int wacom_remote_create_attr_group(struct wacom *wacom, __u32 serial, int index)
1170{
1171 int error = 0;
1172 char *buf;
1173 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
1174
1175 wacom_wac->serial[index] = serial;
1176
1177 buf = kzalloc(WAC_REMOTE_SERIAL_MAX_STRLEN, GFP_KERNEL);
1178 if (!buf)
1179 return -ENOMEM;
1180 snprintf(buf, WAC_REMOTE_SERIAL_MAX_STRLEN, "%d", serial);
1181 wacom->remote_group[index].name = buf;
1182
1183 error = sysfs_create_group(wacom->remote_dir,
1184 &wacom->remote_group[index]);
1185 if (error) {
1186 hid_err(wacom->hdev,
1187 "cannot create sysfs group err: %d\n", error);
1188 kobject_put(wacom->remote_dir);
1189 return error;
1190 }
1191
1192 return 0;
1193}
1194
1195void wacom_remote_destroy_attr_group(struct wacom *wacom, __u32 serial)
1196{
1197 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
1198 int i;
1199
1200 if (!serial)
1201 return;
1202
1203 for (i = 0; i < WACOM_MAX_REMOTES; i++) {
1204 if (wacom_wac->serial[i] == serial) {
1205 wacom_wac->serial[i] = 0;
1206 wacom->led.select[i] = WACOM_STATUS_UNKNOWN;
1207 if (wacom->remote_group[i].name) {
1208 sysfs_remove_group(wacom->remote_dir,
1209 &wacom->remote_group[i]);
1210 kfree(wacom->remote_group[i].name);
1211 wacom->remote_group[i].name = NULL;
1212 }
1213 }
1214 }
1215}
1216
1217static int wacom_cmd_unpair_remote(struct wacom *wacom, unsigned char selector)
1218{
1219 const size_t buf_size = 2;
1220 unsigned char *buf;
1221 int retval;
1222
1223 buf = kzalloc(buf_size, GFP_KERNEL);
1224 if (!buf)
1225 return -ENOMEM;
1226
1227 buf[0] = WAC_CMD_DELETE_PAIRING;
1228 buf[1] = selector;
1229
1230 retval = wacom_set_report(wacom->hdev, HID_OUTPUT_REPORT, buf,
1231 buf_size, WAC_CMD_RETRIES);
1232 kfree(buf);
1233
1234 return retval;
1235}
1236
1237static ssize_t wacom_store_unpair_remote(struct kobject *kobj,
1238 struct kobj_attribute *attr,
1239 const char *buf, size_t count)
1240{
1241 unsigned char selector = 0;
1242 struct device *dev = container_of(kobj->parent, struct device, kobj);
1243 struct hid_device *hdev = container_of(dev, struct hid_device, dev);
1244 struct wacom *wacom = hid_get_drvdata(hdev);
1245 int err;
1246
1247 if (!strncmp(buf, "*\n", 2)) {
1248 selector = WAC_CMD_UNPAIR_ALL;
1249 } else {
1250 hid_info(wacom->hdev, "remote: unrecognized unpair code: %s\n",
1251 buf);
1252 return -1;
1253 }
1254
1255 mutex_lock(&wacom->lock);
1256
1257 err = wacom_cmd_unpair_remote(wacom, selector);
1258 mutex_unlock(&wacom->lock);
1259
1260 return err < 0 ? err : count;
1261}
1262
1263static struct kobj_attribute unpair_remote_attr = {
1264 .attr = {.name = "unpair_remote", .mode = 0200},
1265 .store = wacom_store_unpair_remote,
1266};
1267
1268static const struct attribute *remote_unpair_attrs[] = {
1269 &unpair_remote_attr.attr,
1270 NULL
1271};
1272
1273static int wacom_initialize_remote(struct wacom *wacom)
1274{
1275 int error = 0;
1276 struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
1277 int i;
1278
1279 if (wacom->wacom_wac.features.type != REMOTE)
1280 return 0;
1281
1282 wacom->remote_group[0] = remote0_serial_group;
1283 wacom->remote_group[1] = remote1_serial_group;
1284 wacom->remote_group[2] = remote2_serial_group;
1285 wacom->remote_group[3] = remote3_serial_group;
1286 wacom->remote_group[4] = remote4_serial_group;
1287
1288 wacom->remote_dir = kobject_create_and_add("wacom_remote",
1289 &wacom->hdev->dev.kobj);
1290 if (!wacom->remote_dir)
1291 return -ENOMEM;
1292
1293 error = sysfs_create_files(wacom->remote_dir, remote_unpair_attrs);
1294
1295 if (error) {
1296 hid_err(wacom->hdev,
1297 "cannot create sysfs group err: %d\n", error);
1298 return error;
1299 }
1300
1301 for (i = 0; i < WACOM_MAX_REMOTES; i++) {
1302 wacom->led.select[i] = WACOM_STATUS_UNKNOWN;
1303 wacom_wac->serial[i] = 0;
1304 }
1305
1306 return 0;
1307}
1308
d2d13f18 1309static struct input_dev *wacom_allocate_input(struct wacom *wacom)
3aac0ef1
CB		 1310{
1311 struct input_dev *input_dev;
b6c79f2c 1312 struct hid_device *hdev = wacom->hdev;
3aac0ef1 1313 struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
3aac0ef1
CB		 1314
1315 input_dev = input_allocate_device();
d2d13f18
BT		 1316 if (!input_dev)
1317 return NULL;
3aac0ef1 1318
2bdd163c 1319 input_dev->name = wacom_wac->features.name;
b6c79f2c
BT		 1320 input_dev->phys = hdev->phys;
1321 input_dev->dev.parent = &hdev->dev;
3aac0ef1
CB		 1322 input_dev->open = wacom_open;
1323 input_dev->close = wacom_close;
b6c79f2c
BT		 1324 input_dev->uniq = hdev->uniq;
1325 input_dev->id.bustype = hdev->bus;
1326 input_dev->id.vendor = hdev->vendor;
12969e3b 1327 input_dev->id.product = wacom_wac->pid ? wacom_wac->pid : hdev->product;
b6c79f2c 1328 input_dev->id.version = hdev->version;
3aac0ef1
CB		 1329 input_set_drvdata(input_dev, wacom);
1330
d2d13f18
BT		 1331 return input_dev;
1332}
1333
2546dacd
BT		 1334static void wacom_clean_inputs(struct wacom *wacom)
1335{
2a6cdbdd
JG		 1336 if (wacom->wacom_wac.pen_input) {
1337 if (wacom->wacom_wac.pen_registered)
1338 input_unregister_device(wacom->wacom_wac.pen_input);
2546dacd 1339 else
2a6cdbdd
JG		 1340 input_free_device(wacom->wacom_wac.pen_input);
1341 }
1342 if (wacom->wacom_wac.touch_input) {
1343 if (wacom->wacom_wac.touch_registered)
1344 input_unregister_device(wacom->wacom_wac.touch_input);
1345 else
1346 input_free_device(wacom->wacom_wac.touch_input);
2546dacd
BT		 1347 }
1348 if (wacom->wacom_wac.pad_input) {
954df6ad 1349 if (wacom->wacom_wac.pad_registered)
2546dacd
BT		 1350 input_unregister_device(wacom->wacom_wac.pad_input);
1351 else
1352 input_free_device(wacom->wacom_wac.pad_input);
1353 }
72b236d6
AS		 1354 if (wacom->remote_dir)
1355 kobject_put(wacom->remote_dir);
2a6cdbdd
JG		 1356 wacom->wacom_wac.pen_input = NULL;
1357 wacom->wacom_wac.touch_input = NULL;
2546dacd
BT		 1358 wacom->wacom_wac.pad_input = NULL;
1359 wacom_destroy_leds(wacom);
1360}
1361
d9f2d203
JG		 1362static int wacom_allocate_inputs(struct wacom *wacom)
1363{
1364 struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
1365
1366 wacom_wac->pen_input = wacom_allocate_input(wacom);
1367 wacom_wac->touch_input = wacom_allocate_input(wacom);
1368 wacom_wac->pad_input = wacom_allocate_input(wacom);
1369 if (!wacom_wac->pen_input || !wacom_wac->touch_input || !wacom_wac->pad_input) {
1370 wacom_clean_inputs(wacom);
1371 return -ENOMEM;
1372 }
1373
2bdd163c 1374 wacom_wac->pen_input->name = wacom_wac->pen_name;
d9f2d203
JG		 1375 wacom_wac->touch_input->name = wacom_wac->touch_name;
1376 wacom_wac->pad_input->name = wacom_wac->pad_name;
1377
1378 return 0;
1379}
1380
2546dacd
BT		 1381static int wacom_register_inputs(struct wacom *wacom)
1382{
2a6cdbdd 1383 struct input_dev *pen_input_dev, *touch_input_dev, *pad_input_dev;
2546dacd 1384 struct wacom_wac *wacom_wac = &(wacom->wacom_wac);
2636a3f2 1385 int error = 0;
2546dacd 1386
2a6cdbdd
JG		 1387 pen_input_dev = wacom_wac->pen_input;
1388 touch_input_dev = wacom_wac->touch_input;
2546dacd
BT		 1389 pad_input_dev = wacom_wac->pad_input;
1390
2a6cdbdd 1391 if (!pen_input_dev || !touch_input_dev || !pad_input_dev)
2546dacd
BT		 1392 return -EINVAL;
1393
2a6cdbdd
JG		 1394 error = wacom_setup_pen_input_capabilities(pen_input_dev, wacom_wac);
1395 if (error) {
1396 /* no pen in use on this interface */
1397 input_free_device(pen_input_dev);
1398 wacom_wac->pen_input = NULL;
1399 pen_input_dev = NULL;
1400 } else {
1401 error = input_register_device(pen_input_dev);
1402 if (error)
1403 goto fail_register_pen_input;
1404 wacom_wac->pen_registered = true;
1405 }
1406
1407 error = wacom_setup_touch_input_capabilities(touch_input_dev, wacom_wac);
1408 if (error) {
1409 /* no touch in use on this interface */
1410 input_free_device(touch_input_dev);
1411 wacom_wac->touch_input = NULL;
1412 touch_input_dev = NULL;
1413 } else {
1414 error = input_register_device(touch_input_dev);
30ebc1ae 1415 if (error)
2a6cdbdd
JG		 1416 goto fail_register_touch_input;
1417 wacom_wac->touch_registered = true;
30ebc1ae 1418 }
1963518b 1419
d2d13f18
BT		 1420 error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac);
1421 if (error) {
1422 /* no pad in use on this interface */
1423 input_free_device(pad_input_dev);
1424 wacom_wac->pad_input = NULL;
1425 pad_input_dev = NULL;
1426 } else {
1427 error = input_register_device(pad_input_dev);
1428 if (error)
7fefeec5 1429 goto fail_register_pad_input;
954df6ad 1430 wacom_wac->pad_registered = true;
912ca216
PC		 1431
1432 error = wacom_initialize_leds(wacom);
1433 if (error)
7fefeec5 1434 goto fail_leds;
72b236d6
AS		 1435
1436 error = wacom_initialize_remote(wacom);
1437 if (error)
1438 goto fail_remote;
d2d13f18
BT		 1439 }
1440
1963518b 1441 return 0;
3aac0ef1 1442
72b236d6
AS		 1443fail_remote:
1444 wacom_destroy_leds(wacom);
7fefeec5 1445fail_leds:
912ca216
PC		 1446 input_unregister_device(pad_input_dev);
1447 pad_input_dev = NULL;
954df6ad 1448 wacom_wac->pad_registered = false;
7fefeec5 1449fail_register_pad_input:
0fd72ff9
DC		 1450 if (touch_input_dev)
1451 input_unregister_device(touch_input_dev);
2a6cdbdd
JG		 1452 wacom_wac->touch_input = NULL;
1453 wacom_wac->touch_registered = false;
1454fail_register_touch_input:
0fd72ff9
DC		 1455 if (pen_input_dev)
1456 input_unregister_device(pen_input_dev);
2a6cdbdd
JG		 1457 wacom_wac->pen_input = NULL;
1458 wacom_wac->pen_registered = false;
1459fail_register_pen_input:
3aac0ef1
CB		 1460 return error;
1461}
1462
0be01712
JG		 1463/*
1464 * Not all devices report physical dimensions from HID.
1465 * Compute the default from hardcoded logical dimension
1466 * and resolution before driver overwrites them.
1467 */
1468static void wacom_set_default_phy(struct wacom_features *features)
1469{
1470 if (features->x_resolution) {
1471 features->x_phy = (features->x_max * 100) /
1472 features->x_resolution;
1473 features->y_phy = (features->y_max * 100) /
1474 features->y_resolution;
1475 }
1476}
1477
1478static void wacom_calculate_res(struct wacom_features *features)
1479{
1480 /* set unit to "100th of a mm" for devices not reported by HID */
1481 if (!features->unit) {
1482 features->unit = 0x11;
1483 features->unitExpo = -3;
1484 }
1485
1486 features->x_resolution = wacom_calc_hid_res(features->x_max,
1487 features->x_phy,
1488 features->unit,
1489 features->unitExpo);
1490 features->y_resolution = wacom_calc_hid_res(features->y_max,
1491 features->y_phy,
1492 features->unit,
1493 features->unitExpo);
1494}
1495
16bf288c
CB		 1496static void wacom_wireless_work(struct work_struct *work)
1497{
1498 struct wacom *wacom = container_of(work, struct wacom, work);
1499 struct usb_device *usbdev = wacom->usbdev;
1500 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
29b47391 1501 struct hid_device *hdev1, *hdev2;
b7af2bb8
CB		 1502 struct wacom *wacom1, *wacom2;
1503 struct wacom_wac *wacom_wac1, *wacom_wac2;
1504 int error;
16bf288c
CB		 1505
1506 /*
1507 * Regardless if this is a disconnect or a new tablet,
b7af2bb8 1508 * remove any existing input and battery devices.
16bf288c
CB		 1509 */
1510
b7af2bb8
CB		 1511 wacom_destroy_battery(wacom);
1512
16bf288c 1513 /* Stylus interface */
29b47391
BT		 1514 hdev1 = usb_get_intfdata(usbdev->config->interface[1]);
1515 wacom1 = hid_get_drvdata(hdev1);
b7af2bb8 1516 wacom_wac1 = &(wacom1->wacom_wac);
2546dacd 1517 wacom_clean_inputs(wacom1);
16bf288c
CB		 1518
1519 /* Touch interface */
29b47391
BT		 1520 hdev2 = usb_get_intfdata(usbdev->config->interface[2]);
1521 wacom2 = hid_get_drvdata(hdev2);
b7af2bb8 1522 wacom_wac2 = &(wacom2->wacom_wac);
2546dacd 1523 wacom_clean_inputs(wacom2);
16bf288c
CB		 1524
1525 if (wacom_wac->pid == 0) {
e2114ce1 1526 hid_info(wacom->hdev, "wireless tablet disconnected\n");
ac8d1010 1527 wacom_wac1->shared->type = 0;
16bf288c 1528 } else {
29b47391 1529 const struct hid_device_id *id = wacom_ids;
16bf288c 1530
e2114ce1 1531 hid_info(wacom->hdev, "wireless tablet connected with PID %x\n",
eb71d1bb 1532 wacom_wac->pid);
16bf288c 1533
29b47391
BT		 1534 while (id->bus) {
1535 if (id->vendor == USB_VENDOR_ID_WACOM &&
1536 id->product == wacom_wac->pid)
16bf288c
CB		 1537 break;
1538 id++;
1539 }
1540
29b47391 1541 if (!id->bus) {
e2114ce1 1542 hid_info(wacom->hdev, "ignoring unknown PID.\n");
16bf288c
CB		 1543 return;
1544 }
1545
1546 /* Stylus interface */
b7af2bb8 1547 wacom_wac1->features =
29b47391 1548 *((struct wacom_features *)id->driver_data);
aa86b18c 1549 wacom_wac1->features.device_type |= WACOM_DEVICETYPE_PEN;
862cf553
JG		 1550 if (wacom_wac1->features.type != INTUOSHT &&
1551 wacom_wac1->features.type != BAMBOO_PT)
1552 wacom_wac1->features.device_type |= WACOM_DEVICETYPE_PAD;
0be01712
JG		 1553 wacom_set_default_phy(&wacom_wac1->features);
1554 wacom_calculate_res(&wacom_wac1->features);
2a6cdbdd 1555 snprintf(wacom_wac1->pen_name, WACOM_NAME_MAX, "%s (WL) Pen",
57bcfce3 1556 wacom_wac1->features.name);
008f4d9e
BT		 1557 snprintf(wacom_wac1->pad_name, WACOM_NAME_MAX, "%s (WL) Pad",
1558 wacom_wac1->features.name);
961794a0
PC		 1559 wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max;
1560 wacom_wac1->shared->type = wacom_wac1->features.type;
912ca216 1561 wacom_wac1->pid = wacom_wac->pid;
2546dacd
BT		 1562 error = wacom_allocate_inputs(wacom1) ||
1563 wacom_register_inputs(wacom1);
b7af2bb8 1564 if (error)
57bcfce3 1565 goto fail;
16bf288c
CB		 1566
1567 /* Touch interface */
b5fd2a3e
PC		 1568 if (wacom_wac1->features.touch_max ||
1569 wacom_wac1->features.type == INTUOSHT) {
57bcfce3 1570 wacom_wac2->features =
29b47391 1571 *((struct wacom_features *)id->driver_data);
57bcfce3 1572 wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3;
0be01712 1573 wacom_set_default_phy(&wacom_wac2->features);
57bcfce3 1574 wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096;
0be01712 1575 wacom_calculate_res(&wacom_wac2->features);
2a6cdbdd 1576 snprintf(wacom_wac2->touch_name, WACOM_NAME_MAX,
862cf553 1577 "%s (WL) Finger",wacom_wac2->features.name);
008f4d9e 1578 snprintf(wacom_wac2->pad_name, WACOM_NAME_MAX,
862cf553
JG		 1579 "%s (WL) Pad",wacom_wac2->features.name);
1580 if (wacom_wac1->features.touch_max)
1581 wacom_wac2->features.device_type |= WACOM_DEVICETYPE_TOUCH;
1582 if (wacom_wac1->features.type == INTUOSHT ||
1583 wacom_wac1->features.type == BAMBOO_PT)
1584 wacom_wac2->features.device_type |= WACOM_DEVICETYPE_PAD;
912ca216 1585 wacom_wac2->pid = wacom_wac->pid;
2546dacd
BT		 1586 error = wacom_allocate_inputs(wacom2) ||
1587 wacom_register_inputs(wacom2);
57bcfce3
PC		 1588 if (error)
1589 goto fail;
961794a0
PC		 1590
1591 if (wacom_wac1->features.type == INTUOSHT &&
1592 wacom_wac1->features.touch_max)
2a6cdbdd 1593 wacom_wac->shared->touch_input = wacom_wac2->touch_input;
57bcfce3 1594 }
b7af2bb8
CB		 1595
1596 error = wacom_initialize_battery(wacom);
1597 if (error)
57bcfce3 1598 goto fail;
16bf288c 1599 }
b7af2bb8
CB		 1600
1601 return;
1602
57bcfce3 1603fail:
2546dacd
BT		 1604 wacom_clean_inputs(wacom1);
1605 wacom_clean_inputs(wacom2);
b7af2bb8 1606 return;
16bf288c
CB		 1607}
1608
fce9957d
JG		 1609void wacom_battery_work(struct work_struct *work)
1610{
1611 struct wacom *wacom = container_of(work, struct wacom, work);
1612
1613 if ((wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) &&
8de29a35 1614 !wacom->battery) {
fce9957d
JG		 1615 wacom_initialize_battery(wacom);
1616 }
1617 else if (!(wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) &&
8de29a35 1618 wacom->battery) {
fce9957d
JG		 1619 wacom_destroy_battery(wacom);
1620 }
1621}
1622
01c846f9
BT		 1623static size_t wacom_compute_pktlen(struct hid_device *hdev)
1624{
1625 struct hid_report_enum *report_enum;
1626 struct hid_report *report;
1627 size_t size = 0;
1628
1629 report_enum = hdev->report_enum + HID_INPUT_REPORT;
1630
1631 list_for_each_entry(report, &report_enum->report_list, list) {
dabb05c6 1632 size_t report_size = hid_report_len(report);
01c846f9
BT		 1633 if (report_size > size)
1634 size = report_size;
1635 }
1636
1637 return size;
1638}
1639
c24eab4e
PC		 1640static void wacom_update_name(struct wacom *wacom)
1641{
1642 struct wacom_wac *wacom_wac = &wacom->wacom_wac;
1643 struct wacom_features *features = &wacom_wac->features;
44b5250b 1644 char name[WACOM_NAME_MAX];
c24eab4e
PC		 1645
1646 /* Generic devices name unspecified */
1647 if ((features->type == HID_GENERIC) && !strcmp("Wacom HID", features->name)) {
1648 if (strstr(wacom->hdev->name, "Wacom") ||
1649 strstr(wacom->hdev->name, "wacom") ||
1650 strstr(wacom->hdev->name, "WACOM")) {
1651 /* name is in HID descriptor, use it */
44b5250b 1652 strlcpy(name, wacom->hdev->name, sizeof(name));
c24eab4e
PC		 1653
1654 /* strip out excess whitespaces */
1655 while (1) {
44b5250b 1656 char *gap = strstr(name, " ");
c24eab4e
PC		 1657 if (gap == NULL)
1658 break;
1659 /* shift everything including the terminator */
1660 memmove(gap, gap+1, strlen(gap));
1661 }
1662 /* get rid of trailing whitespace */
44b5250b
JG		 1663 if (name[strlen(name)-1] == ' ')
1664 name[strlen(name)-1] = '\0';
c24eab4e
PC		 1665 } else {
1666 /* no meaningful name retrieved. use product ID */
44b5250b 1667 snprintf(name, sizeof(name),
c24eab4e
PC		 1668 "%s %X", features->name, wacom->hdev->product);
1669 }
1670 } else {
44b5250b 1671 strlcpy(name, features->name, sizeof(name));
c24eab4e
PC		 1672 }
1673
1674 /* Append the device type to the name */
2a6cdbdd
JG		 1675 snprintf(wacom_wac->pen_name, sizeof(wacom_wac->pen_name),
1676 "%s Pen", name);
1677 snprintf(wacom_wac->touch_name, sizeof(wacom_wac->touch_name),
1678 "%s Finger", name);
c24eab4e 1679 snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name),
44b5250b 1680 "%s Pad", name);
c24eab4e
PC		 1681}
1682
29b47391
BT		 1683static int wacom_probe(struct hid_device *hdev,
1684 const struct hid_device_id *id)
3bea733a 1685{
29b47391 1686 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
3bea733a 1687 struct usb_device *dev = interface_to_usbdev(intf);
3bea733a
PC		 1688 struct wacom *wacom;
1689 struct wacom_wac *wacom_wac;
e33da8a5 1690 struct wacom_features *features;
e33da8a5 1691 int error;
7704ac93 1692 unsigned int connect_mask = HID_CONNECT_HIDRAW;
3bea733a 1693
29b47391 1694 if (!id->driver_data)
b036f6fb
BB		 1695 return -EINVAL;
1696
8ffffd52
BT		 1697 hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
1698
5fcad167
BT		 1699 /* hid-core sets this quirk for the boot interface */
1700 hdev->quirks &= ~HID_QUIRK_NOGET;
1701
3bea733a 1702 wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL);
f1823940
DC		 1703 if (!wacom)
1704 return -ENOMEM;
e33da8a5 1705
29b47391
BT		 1706 hid_set_drvdata(hdev, wacom);
1707 wacom->hdev = hdev;
1708
ba9a3541
BT		 1709 /* ask for the report descriptor to be loaded by HID */
1710 error = hid_parse(hdev);
1711 if (error) {
1712 hid_err(hdev, "parse failed\n");
7fefeec5 1713 goto fail_parse;
ba9a3541
BT		 1714 }
1715
51269fe8 1716 wacom_wac = &wacom->wacom_wac;
29b47391 1717 wacom_wac->features = *((struct wacom_features *)id->driver_data);
e33da8a5 1718 features = &wacom_wac->features;
01c846f9 1719 features->pktlen = wacom_compute_pktlen(hdev);
e33da8a5
JC		 1720 if (features->pktlen > WACOM_PKGLEN_MAX) {
1721 error = -EINVAL;
7fefeec5 1722 goto fail_pktlen;
e33da8a5 1723 }
3bea733a 1724
29b47391
BT		 1725 if (features->check_for_hid_type && features->hid_type != hdev->type) {
1726 error = -ENODEV;
7fefeec5 1727 goto fail_type;
e33da8a5 1728 }
3bea733a 1729
3bea733a 1730 wacom->usbdev = dev;
e7224094
ON		 1731 wacom->intf = intf;
1732 mutex_init(&wacom->lock);
16bf288c 1733 INIT_WORK(&wacom->work, wacom_wireless_work);
3bea733a 1734
3f14a63a
JG		 1735 error = wacom_allocate_inputs(wacom);
1736 if (error)
1737 goto fail_allocate_inputs;
494078b0 1738
8c97a765
BT		 1739 /*
1740 * Bamboo Pad has a generic hid handling for the Pen, and we switch it
1741 * into debug mode for the touch part.
1742 * We ignore the other interfaces.
1743 */
1744 if (features->type == BAMBOO_PAD) {
1745 if (features->pktlen == WACOM_PKGLEN_PENABLED) {
1746 features->type = HID_GENERIC;
1747 } else if ((features->pktlen != WACOM_PKGLEN_BPAD_TOUCH) &&
1748 (features->pktlen != WACOM_PKGLEN_BPAD_TOUCH_USB)) {
1749 error = -ENODEV;
1750 goto fail_shared_data;
1751 }
1752 }
1753
401d7d10
PC		 1754 /* set the default size in case we do not get them from hid */
1755 wacom_set_default_phy(features);
1756
f393ee2b 1757 /* Retrieve the physical and logical size for touch devices */
c669fb2b 1758 wacom_retrieve_hid_descriptor(hdev, features);
42f4f272 1759 wacom_setup_device_quirks(wacom);
042628ab 1760
aa86b18c
JG		 1761 if (features->device_type == WACOM_DEVICETYPE_NONE &&
1762 features->type != WIRELESS) {
8e116d31
JG		 1763 error = features->type == HID_GENERIC ? -ENODEV : 0;
1764
042628ab 1765 dev_warn(&hdev->dev, "Unknown device_type for '%s'. %s.",
8e116d31
JG		 1766 hdev->name,
1767 error ? "Ignoring" : "Assuming pen");
1768
1769 if (error)
1770 goto fail_shared_data;
042628ab 1771
aa86b18c 1772 features->device_type |= WACOM_DEVICETYPE_PEN;
042628ab
JG		 1773 }
1774
401d7d10
PC		 1775 wacom_calculate_res(features);
1776
c24eab4e 1777 wacom_update_name(wacom);
4492efff 1778
f3586d2f
PC		 1779 error = wacom_add_shared_data(hdev);
1780 if (error)
1781 goto fail_shared_data;
49b764ae 1782
ccad85cc 1783 if (!(features->device_type & WACOM_DEVICETYPE_WL_MONITOR) &&
f81a1295
BT		 1784 (features->quirks & WACOM_QUIRK_BATTERY)) {
1785 error = wacom_initialize_battery(wacom);
1786 if (error)
7fefeec5 1787 goto fail_battery;
f81a1295
BT		 1788 }
1789
3f14a63a
JG		 1790 error = wacom_register_inputs(wacom);
1791 if (error)
1792 goto fail_register_inputs;
f81a1295
BT		 1793
1794 if (hdev->bus == BUS_BLUETOOTH) {
1795 error = device_create_file(&hdev->dev, &dev_attr_speed);
1796 if (error)
1797 hid_warn(hdev,
1798 "can't create sysfs speed attribute err: %d\n",
1799 error);
d3825d51 1800 }
5d7e7d47 1801
7704ac93
BT		 1802 if (features->type == HID_GENERIC)
1803 connect_mask |= HID_CONNECT_DRIVER;
1804
29b47391 1805 /* Regular HID work starts now */
7704ac93 1806 error = hid_hw_start(hdev, connect_mask);
29b47391
BT		 1807 if (error) {
1808 hid_err(hdev, "hw start failed\n");
7fefeec5 1809 goto fail_hw_start;
d3825d51 1810 }
961794a0 1811
5ae6e89f
BT		 1812 /* Note that if query fails it is not a hard failure */
1813 wacom_query_tablet_data(hdev, features);
1814
ccad85cc 1815 if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR)
29b47391
BT		 1816 error = hid_hw_open(hdev);
1817
862cf553
JG		 1818 if (wacom_wac->features.type == INTUOSHT &&
1819 wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH) {
2a6cdbdd 1820 wacom_wac->shared->touch_input = wacom_wac->touch_input;
961794a0
PC		 1821 }
1822
3bea733a
PC		 1823 return 0;
1824
7fefeec5 1825fail_hw_start:
7fefeec5 1826 if (hdev->bus == BUS_BLUETOOTH)
f81a1295 1827 device_remove_file(&hdev->dev, &dev_attr_speed);
7fefeec5 1828fail_register_inputs:
2546dacd 1829 wacom_clean_inputs(wacom);
7fefeec5
BT		 1830 wacom_destroy_battery(wacom);
1831fail_battery:
a97ac104 1832 wacom_remove_shared_data(wacom);
7fefeec5 1833fail_shared_data:
494078b0
BT		 1834 wacom_clean_inputs(wacom);
1835fail_allocate_inputs:
7fefeec5
BT		 1836fail_type:
1837fail_pktlen:
1838fail_parse:
1839 kfree(wacom);
29b47391 1840 hid_set_drvdata(hdev, NULL);
5014186d 1841 return error;
3bea733a
PC		 1842}
1843
29b47391 1844static void wacom_remove(struct hid_device *hdev)
3bea733a 1845{
29b47391 1846 struct wacom *wacom = hid_get_drvdata(hdev);
3bea733a 1847
29b47391 1848 hid_hw_stop(hdev);
e7224094 1849
16bf288c 1850 cancel_work_sync(&wacom->work);
2546dacd 1851 wacom_clean_inputs(wacom);
f81a1295
BT		 1852 if (hdev->bus == BUS_BLUETOOTH)
1853 device_remove_file(&hdev->dev, &dev_attr_speed);
a1d552cc 1854 wacom_destroy_battery(wacom);
a97ac104 1855 wacom_remove_shared_data(wacom);
e7224094 1856
29b47391
BT		 1857 hid_set_drvdata(hdev, NULL);
1858 kfree(wacom);
e7224094
ON		 1859}
1860
41a74581 1861#ifdef CONFIG_PM
29b47391 1862static int wacom_resume(struct hid_device *hdev)
e7224094 1863{
29b47391 1864 struct wacom *wacom = hid_get_drvdata(hdev);
51269fe8 1865 struct wacom_features *features = &wacom->wacom_wac.features;
e7224094
ON		 1866
1867 mutex_lock(&wacom->lock);
38101475
PC		 1868
1869 /* switch to wacom mode first */
27b20a9d 1870 wacom_query_tablet_data(hdev, features);
5d7e7d47 1871 wacom_led_control(wacom);
38101475 1872
e7224094
ON		 1873 mutex_unlock(&wacom->lock);
1874
29b47391 1875 return 0;
e7224094
ON		 1876}
1877
29b47391 1878static int wacom_reset_resume(struct hid_device *hdev)
e7224094 1879{
29b47391 1880 return wacom_resume(hdev);
3bea733a 1881}
41a74581 1882#endif /* CONFIG_PM */
3bea733a 1883
29b47391 1884static struct hid_driver wacom_driver = {
3bea733a 1885 .name = "wacom",
b036f6fb 1886 .id_table = wacom_ids,
3bea733a 1887 .probe = wacom_probe,
29b47391 1888 .remove = wacom_remove,
7704ac93 1889 .report = wacom_wac_report,
29b47391 1890#ifdef CONFIG_PM
e7224094
ON		 1891 .resume = wacom_resume,
1892 .reset_resume = wacom_reset_resume,
29b47391
BT		 1893#endif
1894 .raw_event = wacom_raw_event,
3bea733a 1895};
29b47391 1896module_hid_driver(wacom_driver);
f2e0a7d4
BT		 1897
1898MODULE_VERSION(DRIVER_VERSION);
1899MODULE_AUTHOR(DRIVER_AUTHOR);
1900MODULE_DESCRIPTION(DRIVER_DESC);
1901MODULE_LICENSE(DRIVER_LICENSE);
Linux kernel - Deliverables
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