Commit | Line | Data |
---|---|---|
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 | |
5d7e7d47 | 28 | |
e0984bc3 PC |
29 | #define DEV_ATTR_RW_PERM (S_IRUGO | S_IWUSR | S_IWGRP) |
30 | #define DEV_ATTR_WO_PERM (S_IWUSR | S_IWGRP) | |
72b236d6 | 31 | #define DEV_ATTR_RO_PERM (S_IRUSR | S_IRGRP) |
e0984bc3 | 32 | |
c64d8834 PC |
33 | static int wacom_get_report(struct hid_device *hdev, u8 type, u8 *buf, |
34 | size_t size, unsigned int retries) | |
3bea733a | 35 | { |
5d7e7d47 EH |
36 | int retval; |
37 | ||
38 | do { | |
c64d8834 | 39 | retval = hid_hw_raw_request(hdev, buf[0], buf, size, type, |
27b20a9d | 40 | HID_REQ_GET_REPORT); |
aef3156d JG |
41 | } while ((retval == -ETIMEDOUT || retval == -EAGAIN) && --retries); |
42 | ||
43 | if (retval < 0) | |
44 | hid_err(hdev, "wacom_get_report: ran out of retries " | |
45 | "(last error = %d)\n", retval); | |
5d7e7d47 EH |
46 | |
47 | return retval; | |
3bea733a PC |
48 | } |
49 | ||
296b7378 PF |
50 | static int wacom_set_report(struct hid_device *hdev, u8 type, u8 *buf, |
51 | size_t size, unsigned int retries) | |
3bea733a | 52 | { |
5d7e7d47 EH |
53 | int retval; |
54 | ||
55 | do { | |
296b7378 | 56 | retval = hid_hw_raw_request(hdev, buf[0], buf, size, type, |
27b20a9d | 57 | HID_REQ_SET_REPORT); |
aef3156d JG |
58 | } while ((retval == -ETIMEDOUT || retval == -EAGAIN) && --retries); |
59 | ||
60 | if (retval < 0) | |
61 | hid_err(hdev, "wacom_set_report: ran out of retries " | |
62 | "(last error = %d)\n", retval); | |
5d7e7d47 EH |
63 | |
64 | return retval; | |
3bea733a PC |
65 | } |
66 | ||
29b47391 BT |
67 | static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report, |
68 | u8 *raw_data, int size) | |
3bea733a | 69 | { |
29b47391 | 70 | struct wacom *wacom = hid_get_drvdata(hdev); |
3bea733a | 71 | |
29b47391 BT |
72 | if (size > WACOM_PKGLEN_MAX) |
73 | return 1; | |
3bea733a | 74 | |
29b47391 | 75 | memcpy(wacom->wacom_wac.data, raw_data, size); |
3bea733a | 76 | |
29b47391 BT |
77 | wacom_wac_irq(&wacom->wacom_wac, size); |
78 | ||
79 | return 0; | |
3bea733a PC |
80 | } |
81 | ||
3bea733a PC |
82 | static int wacom_open(struct input_dev *dev) |
83 | { | |
7791bdae | 84 | struct wacom *wacom = input_get_drvdata(dev); |
29b47391 | 85 | |
dff67416 | 86 | return hid_hw_open(wacom->hdev); |
3bea733a PC |
87 | } |
88 | ||
89 | static void wacom_close(struct input_dev *dev) | |
90 | { | |
7791bdae | 91 | struct wacom *wacom = input_get_drvdata(dev); |
3bea733a | 92 | |
3dad188e BT |
93 | /* |
94 | * wacom->hdev should never be null, but surprisingly, I had the case | |
95 | * once while unplugging the Wacom Wireless Receiver. | |
96 | */ | |
97 | if (wacom->hdev) | |
98 | hid_hw_close(wacom->hdev); | |
3bea733a PC |
99 | } |
100 | ||
115d5e12 | 101 | /* |
198fdee2 | 102 | * Calculate the resolution of the X or Y axis using hidinput_calc_abs_res. |
115d5e12 JG |
103 | */ |
104 | static int wacom_calc_hid_res(int logical_extents, int physical_extents, | |
c669fb2b | 105 | unsigned unit, int exponent) |
115d5e12 | 106 | { |
198fdee2 BT |
107 | struct hid_field field = { |
108 | .logical_maximum = logical_extents, | |
109 | .physical_maximum = physical_extents, | |
110 | .unit = unit, | |
111 | .unit_exponent = exponent, | |
112 | }; | |
113 | ||
114 | return hidinput_calc_abs_res(&field, ABS_X); | |
115d5e12 JG |
115 | } |
116 | ||
c669fb2b BT |
117 | static void wacom_feature_mapping(struct hid_device *hdev, |
118 | struct hid_field *field, struct hid_usage *usage) | |
f393ee2b | 119 | { |
c669fb2b BT |
120 | struct wacom *wacom = hid_get_drvdata(hdev); |
121 | struct wacom_features *features = &wacom->wacom_wac.features; | |
5ae6e89f | 122 | struct hid_data *hid_data = &wacom->wacom_wac.hid_data; |
8ffffd52 BT |
123 | u8 *data; |
124 | int ret; | |
f393ee2b | 125 | |
c669fb2b BT |
126 | switch (usage->hid) { |
127 | case HID_DG_CONTACTMAX: | |
128 | /* leave touch_max as is if predefined */ | |
8ffffd52 BT |
129 | if (!features->touch_max) { |
130 | /* read manually */ | |
131 | data = kzalloc(2, GFP_KERNEL); | |
132 | if (!data) | |
133 | break; | |
134 | data[0] = field->report->id; | |
135 | ret = wacom_get_report(hdev, HID_FEATURE_REPORT, | |
05e8fd92 JG |
136 | data, 2, WAC_CMD_RETRIES); |
137 | if (ret == 2) { | |
8ffffd52 | 138 | features->touch_max = data[1]; |
05e8fd92 JG |
139 | } else { |
140 | features->touch_max = 16; | |
141 | hid_warn(hdev, "wacom_feature_mapping: " | |
142 | "could not get HID_DG_CONTACTMAX, " | |
143 | "defaulting to %d\n", | |
144 | features->touch_max); | |
145 | } | |
8ffffd52 BT |
146 | kfree(data); |
147 | } | |
c669fb2b | 148 | break; |
5ae6e89f BT |
149 | case HID_DG_INPUTMODE: |
150 | /* Ignore if value index is out of bounds. */ | |
151 | if (usage->usage_index >= field->report_count) { | |
152 | dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); | |
153 | break; | |
154 | } | |
155 | ||
156 | hid_data->inputmode = field->report->id; | |
157 | hid_data->inputmode_index = usage->usage_index; | |
158 | break; | |
326ea2a9 JG |
159 | |
160 | case HID_UP_DIGITIZER: | |
161 | if (field->report->id == 0x0B && | |
162 | (field->application == WACOM_G9_DIGITIZER || | |
163 | field->application == WACOM_G11_DIGITIZER)) { | |
164 | wacom->wacom_wac.mode_report = field->report->id; | |
165 | wacom->wacom_wac.mode_value = 0; | |
166 | } | |
167 | break; | |
168 | ||
169 | case WACOM_G9_PAGE: | |
170 | case WACOM_G11_PAGE: | |
171 | if (field->report->id == 0x03 && | |
172 | (field->application == WACOM_G9_TOUCHSCREEN || | |
173 | field->application == WACOM_G11_TOUCHSCREEN)) { | |
174 | wacom->wacom_wac.mode_report = field->report->id; | |
175 | wacom->wacom_wac.mode_value = 0; | |
176 | } | |
177 | break; | |
f393ee2b PC |
178 | } |
179 | } | |
180 | ||
428f8588 CB |
181 | /* |
182 | * Interface Descriptor of wacom devices can be incomplete and | |
183 | * inconsistent so wacom_features table is used to store stylus | |
184 | * device's packet lengths, various maximum values, and tablet | |
185 | * resolution based on product ID's. | |
186 | * | |
187 | * For devices that contain 2 interfaces, wacom_features table is | |
188 | * inaccurate for the touch interface. Since the Interface Descriptor | |
189 | * for touch interfaces has pretty complete data, this function exists | |
190 | * to query tablet for this missing information instead of hard coding in | |
191 | * an additional table. | |
192 | * | |
193 | * A typical Interface Descriptor for a stylus will contain a | |
194 | * boot mouse application collection that is not of interest and this | |
195 | * function will ignore it. | |
196 | * | |
197 | * It also contains a digitizer application collection that also is not | |
198 | * of interest since any information it contains would be duplicate | |
199 | * of what is in wacom_features. Usually it defines a report of an array | |
200 | * of bytes that could be used as max length of the stylus packet returned. | |
201 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
202 | * the X and Y logical values contain valid data but it is ignored. | |
203 | * | |
204 | * A typical Interface Descriptor for a touch interface will contain a | |
205 | * Digitizer-Finger Physical Collection which will define both logical | |
206 | * X/Y maximum as well as the physical size of tablet. Since touch | |
207 | * interfaces haven't supported pressure or distance, this is enough | |
208 | * information to override invalid values in the wacom_features table. | |
4134361a | 209 | * |
c669fb2b BT |
210 | * Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful |
211 | * data. We deal with them after returning from this function. | |
428f8588 | 212 | */ |
c669fb2b BT |
213 | static void wacom_usage_mapping(struct hid_device *hdev, |
214 | struct hid_field *field, struct hid_usage *usage) | |
545f4e99 | 215 | { |
c669fb2b BT |
216 | struct wacom *wacom = hid_get_drvdata(hdev); |
217 | struct wacom_features *features = &wacom->wacom_wac.features; | |
d97a5522 BT |
218 | bool finger = WACOM_FINGER_FIELD(field); |
219 | bool pen = WACOM_PEN_FIELD(field); | |
e9fc413f | 220 | |
c669fb2b BT |
221 | /* |
222 | * Requiring Stylus Usage will ignore boot mouse | |
223 | * X/Y values and some cases of invalid Digitizer X/Y | |
224 | * values commonly reported. | |
225 | */ | |
042628ab | 226 | if (pen) |
aa86b18c | 227 | features->device_type |= WACOM_DEVICETYPE_PEN; |
042628ab | 228 | else if (finger) |
aa86b18c | 229 | features->device_type |= WACOM_DEVICETYPE_TOUCH; |
042628ab | 230 | else |
c669fb2b BT |
231 | return; |
232 | ||
30ebc1ae PC |
233 | /* |
234 | * Bamboo models do not support HID_DG_CONTACTMAX. | |
235 | * And, Bamboo Pen only descriptor contains touch. | |
236 | */ | |
3b164a00 | 237 | if (features->type > BAMBOO_PT) { |
30ebc1ae PC |
238 | /* ISDv4 touch devices at least supports one touch point */ |
239 | if (finger && !features->touch_max) | |
240 | features->touch_max = 1; | |
241 | } | |
c669fb2b BT |
242 | |
243 | switch (usage->hid) { | |
244 | case HID_GD_X: | |
245 | features->x_max = field->logical_maximum; | |
246 | if (finger) { | |
c669fb2b | 247 | features->x_phy = field->physical_maximum; |
3b164a00 PC |
248 | if ((features->type != BAMBOO_PT) && |
249 | (features->type != BAMBOO_TOUCH)) { | |
c669fb2b BT |
250 | features->unit = field->unit; |
251 | features->unitExpo = field->unit_exponent; | |
545f4e99 | 252 | } |
c669fb2b BT |
253 | } |
254 | break; | |
255 | case HID_GD_Y: | |
256 | features->y_max = field->logical_maximum; | |
257 | if (finger) { | |
258 | features->y_phy = field->physical_maximum; | |
3b164a00 PC |
259 | if ((features->type != BAMBOO_PT) && |
260 | (features->type != BAMBOO_TOUCH)) { | |
c669fb2b BT |
261 | features->unit = field->unit; |
262 | features->unitExpo = field->unit_exponent; | |
263 | } | |
264 | } | |
265 | break; | |
266 | case HID_DG_TIPPRESSURE: | |
267 | if (pen) | |
268 | features->pressure_max = field->logical_maximum; | |
269 | break; | |
270 | } | |
7704ac93 BT |
271 | |
272 | if (features->type == HID_GENERIC) | |
273 | wacom_wac_usage_mapping(hdev, field, usage); | |
c669fb2b | 274 | } |
4134361a | 275 | |
b58ba1ba JG |
276 | static void wacom_post_parse_hid(struct hid_device *hdev, |
277 | struct wacom_features *features) | |
278 | { | |
279 | struct wacom *wacom = hid_get_drvdata(hdev); | |
280 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
281 | ||
282 | if (features->type == HID_GENERIC) { | |
283 | /* Any last-minute generic device setup */ | |
284 | if (features->touch_max > 1) { | |
2a6cdbdd | 285 | input_mt_init_slots(wacom_wac->touch_input, wacom_wac->features.touch_max, |
b58ba1ba JG |
286 | INPUT_MT_DIRECT); |
287 | } | |
288 | } | |
289 | } | |
290 | ||
c669fb2b BT |
291 | static void wacom_parse_hid(struct hid_device *hdev, |
292 | struct wacom_features *features) | |
293 | { | |
294 | struct hid_report_enum *rep_enum; | |
295 | struct hid_report *hreport; | |
296 | int i, j; | |
297 | ||
298 | /* check features first */ | |
299 | rep_enum = &hdev->report_enum[HID_FEATURE_REPORT]; | |
300 | list_for_each_entry(hreport, &rep_enum->report_list, list) { | |
301 | for (i = 0; i < hreport->maxfield; i++) { | |
302 | /* Ignore if report count is out of bounds. */ | |
303 | if (hreport->field[i]->report_count < 1) | |
304 | continue; | |
305 | ||
306 | for (j = 0; j < hreport->field[i]->maxusage; j++) { | |
307 | wacom_feature_mapping(hdev, hreport->field[i], | |
308 | hreport->field[i]->usage + j); | |
4134361a | 309 | } |
545f4e99 PC |
310 | } |
311 | } | |
312 | ||
c669fb2b BT |
313 | /* now check the input usages */ |
314 | rep_enum = &hdev->report_enum[HID_INPUT_REPORT]; | |
315 | list_for_each_entry(hreport, &rep_enum->report_list, list) { | |
316 | ||
317 | if (!hreport->maxfield) | |
318 | continue; | |
319 | ||
320 | for (i = 0; i < hreport->maxfield; i++) | |
321 | for (j = 0; j < hreport->field[i]->maxusage; j++) | |
322 | wacom_usage_mapping(hdev, hreport->field[i], | |
323 | hreport->field[i]->usage + j); | |
324 | } | |
b58ba1ba JG |
325 | |
326 | wacom_post_parse_hid(hdev, features); | |
545f4e99 PC |
327 | } |
328 | ||
5ae6e89f BT |
329 | static int wacom_hid_set_device_mode(struct hid_device *hdev) |
330 | { | |
331 | struct wacom *wacom = hid_get_drvdata(hdev); | |
332 | struct hid_data *hid_data = &wacom->wacom_wac.hid_data; | |
333 | struct hid_report *r; | |
334 | struct hid_report_enum *re; | |
335 | ||
336 | if (hid_data->inputmode < 0) | |
337 | return 0; | |
338 | ||
339 | re = &(hdev->report_enum[HID_FEATURE_REPORT]); | |
340 | r = re->report_id_hash[hid_data->inputmode]; | |
341 | if (r) { | |
342 | r->field[0]->value[hid_data->inputmode_index] = 2; | |
343 | hid_hw_request(hdev, r, HID_REQ_SET_REPORT); | |
344 | } | |
345 | return 0; | |
346 | } | |
347 | ||
326ea2a9 JG |
348 | static int wacom_set_device_mode(struct hid_device *hdev, |
349 | struct wacom_wac *wacom_wac) | |
3b7307c2 | 350 | { |
326ea2a9 JG |
351 | u8 *rep_data; |
352 | struct hid_report *r; | |
353 | struct hid_report_enum *re; | |
354 | int length; | |
fe494bc2 | 355 | int error = -ENOMEM, limit = 0; |
3b7307c2 | 356 | |
326ea2a9 JG |
357 | if (wacom_wac->mode_report < 0) |
358 | return 0; | |
359 | ||
360 | re = &(hdev->report_enum[HID_FEATURE_REPORT]); | |
361 | r = re->report_id_hash[wacom_wac->mode_report]; | |
362 | if (!r) | |
363 | return -EINVAL; | |
364 | ||
365 | rep_data = hid_alloc_report_buf(r, GFP_KERNEL); | |
3b7307c2 | 366 | if (!rep_data) |
326ea2a9 JG |
367 | return -ENOMEM; |
368 | ||
369 | length = hid_report_len(r); | |
ec67bbed | 370 | |
fe494bc2 | 371 | do { |
326ea2a9 JG |
372 | rep_data[0] = wacom_wac->mode_report; |
373 | rep_data[1] = wacom_wac->mode_value; | |
9937c026 | 374 | |
296b7378 PF |
375 | error = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, |
376 | length, 1); | |
3cb83157 | 377 | if (error >= 0) |
27b20a9d | 378 | error = wacom_get_report(hdev, HID_FEATURE_REPORT, |
c64d8834 | 379 | rep_data, length, 1); |
326ea2a9 JG |
380 | } while (error >= 0 && |
381 | rep_data[1] != wacom_wac->mode_report && | |
382 | limit++ < WAC_MSG_RETRIES); | |
fe494bc2 JG |
383 | |
384 | kfree(rep_data); | |
385 | ||
386 | return error < 0 ? error : 0; | |
387 | } | |
388 | ||
f81a1295 BT |
389 | static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed, |
390 | struct wacom_features *features) | |
391 | { | |
387142bb BT |
392 | struct wacom *wacom = hid_get_drvdata(hdev); |
393 | int ret; | |
394 | u8 rep_data[2]; | |
395 | ||
396 | switch (features->type) { | |
397 | case GRAPHIRE_BT: | |
398 | rep_data[0] = 0x03; | |
399 | rep_data[1] = 0x00; | |
296b7378 PF |
400 | ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2, |
401 | 3); | |
387142bb BT |
402 | |
403 | if (ret >= 0) { | |
404 | rep_data[0] = speed == 0 ? 0x05 : 0x06; | |
405 | rep_data[1] = 0x00; | |
406 | ||
407 | ret = wacom_set_report(hdev, HID_FEATURE_REPORT, | |
296b7378 | 408 | rep_data, 2, 3); |
387142bb BT |
409 | |
410 | if (ret >= 0) { | |
411 | wacom->wacom_wac.bt_high_speed = speed; | |
412 | return 0; | |
413 | } | |
414 | } | |
415 | ||
416 | /* | |
417 | * Note that if the raw queries fail, it's not a hard failure | |
418 | * and it is safe to continue | |
419 | */ | |
420 | hid_warn(hdev, "failed to poke device, command %d, err %d\n", | |
421 | rep_data[0], ret); | |
422 | break; | |
81af7e61 BT |
423 | case INTUOS4WL: |
424 | if (speed == 1) | |
425 | wacom->wacom_wac.bt_features &= ~0x20; | |
426 | else | |
427 | wacom->wacom_wac.bt_features |= 0x20; | |
428 | ||
429 | rep_data[0] = 0x03; | |
430 | rep_data[1] = wacom->wacom_wac.bt_features; | |
431 | ||
296b7378 PF |
432 | ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2, |
433 | 1); | |
81af7e61 BT |
434 | if (ret >= 0) |
435 | wacom->wacom_wac.bt_high_speed = speed; | |
436 | break; | |
387142bb BT |
437 | } |
438 | ||
f81a1295 BT |
439 | return 0; |
440 | } | |
441 | ||
fe494bc2 JG |
442 | /* |
443 | * Switch the tablet into its most-capable mode. Wacom tablets are | |
444 | * typically configured to power-up in a mode which sends mouse-like | |
445 | * reports to the OS. To get absolute position, pressure data, etc. | |
446 | * from the tablet, it is necessary to switch the tablet out of this | |
447 | * mode and into one which sends the full range of tablet data. | |
448 | */ | |
27b20a9d BT |
449 | static int wacom_query_tablet_data(struct hid_device *hdev, |
450 | struct wacom_features *features) | |
fe494bc2 | 451 | { |
326ea2a9 JG |
452 | struct wacom *wacom = hid_get_drvdata(hdev); |
453 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
454 | ||
f81a1295 BT |
455 | if (hdev->bus == BUS_BLUETOOTH) |
456 | return wacom_bt_query_tablet_data(hdev, 1, features); | |
457 | ||
326ea2a9 JG |
458 | if (features->type != HID_GENERIC) { |
459 | if (features->device_type & WACOM_DEVICETYPE_TOUCH) { | |
460 | if (features->type > TABLETPC) { | |
461 | /* MT Tablet PC touch */ | |
462 | wacom_wac->mode_report = 3; | |
463 | wacom_wac->mode_value = 4; | |
464 | } else if (features->type == WACOM_24HDT) { | |
465 | wacom_wac->mode_report = 18; | |
466 | wacom_wac->mode_value = 2; | |
467 | } else if (features->type == WACOM_27QHDT) { | |
468 | wacom_wac->mode_report = 131; | |
469 | wacom_wac->mode_value = 2; | |
470 | } else if (features->type == BAMBOO_PAD) { | |
471 | wacom_wac->mode_report = 2; | |
472 | wacom_wac->mode_value = 2; | |
473 | } | |
474 | } else if (features->device_type & WACOM_DEVICETYPE_PEN) { | |
475 | if (features->type <= BAMBOO_PT) { | |
476 | wacom_wac->mode_report = 2; | |
477 | wacom_wac->mode_value = 2; | |
478 | } | |
1963518b | 479 | } |
ec67bbed | 480 | } |
3b7307c2 | 481 | |
326ea2a9 JG |
482 | wacom_set_device_mode(hdev, wacom_wac); |
483 | ||
484 | if (features->type == HID_GENERIC) | |
485 | return wacom_hid_set_device_mode(hdev); | |
486 | ||
fe494bc2 | 487 | return 0; |
3b7307c2 DT |
488 | } |
489 | ||
c669fb2b | 490 | static void wacom_retrieve_hid_descriptor(struct hid_device *hdev, |
1963518b | 491 | struct wacom_features *features) |
ec67bbed | 492 | { |
27b20a9d BT |
493 | struct wacom *wacom = hid_get_drvdata(hdev); |
494 | struct usb_interface *intf = wacom->intf; | |
ec67bbed | 495 | |
fed87e65 | 496 | /* default features */ |
fed87e65 HR |
497 | features->x_fuzz = 4; |
498 | features->y_fuzz = 4; | |
499 | features->pressure_fuzz = 0; | |
bef7e200 JG |
500 | features->distance_fuzz = 1; |
501 | features->tilt_fuzz = 1; | |
ec67bbed | 502 | |
d3825d51 CB |
503 | /* |
504 | * The wireless device HID is basic and layout conflicts with | |
505 | * other tablets (monitor and touch interface can look like pen). | |
506 | * Skip the query for this type and modify defaults based on | |
507 | * interface number. | |
508 | */ | |
509 | if (features->type == WIRELESS) { | |
3f14a63a | 510 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) |
ccad85cc | 511 | features->device_type = WACOM_DEVICETYPE_WL_MONITOR; |
3f14a63a | 512 | else |
aa86b18c | 513 | features->device_type = WACOM_DEVICETYPE_NONE; |
3f14a63a | 514 | return; |
d3825d51 CB |
515 | } |
516 | ||
c669fb2b | 517 | wacom_parse_hid(hdev, features); |
ec67bbed PC |
518 | } |
519 | ||
4451e088 | 520 | struct wacom_hdev_data { |
4492efff PC |
521 | struct list_head list; |
522 | struct kref kref; | |
4451e088 | 523 | struct hid_device *dev; |
4492efff PC |
524 | struct wacom_shared shared; |
525 | }; | |
526 | ||
527 | static LIST_HEAD(wacom_udev_list); | |
528 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
529 | ||
41372d5d JG |
530 | static bool compare_device_paths(struct hid_device *hdev_a, |
531 | struct hid_device *hdev_b, char separator) | |
532 | { | |
533 | int n1 = strrchr(hdev_a->phys, separator) - hdev_a->phys; | |
534 | int n2 = strrchr(hdev_b->phys, separator) - hdev_b->phys; | |
535 | ||
536 | if (n1 != n2 || n1 <= 0 || n2 <= 0) | |
537 | return false; | |
538 | ||
539 | return !strncmp(hdev_a->phys, hdev_b->phys, n1); | |
540 | } | |
541 | ||
4451e088 BT |
542 | static bool wacom_are_sibling(struct hid_device *hdev, |
543 | struct hid_device *sibling) | |
aea2bf6a | 544 | { |
4451e088 BT |
545 | struct wacom *wacom = hid_get_drvdata(hdev); |
546 | struct wacom_features *features = &wacom->wacom_wac.features; | |
41372d5d JG |
547 | struct wacom *sibling_wacom = hid_get_drvdata(sibling); |
548 | struct wacom_features *sibling_features = &sibling_wacom->wacom_wac.features; | |
549 | __u32 oVid = features->oVid ? features->oVid : hdev->vendor; | |
550 | __u32 oPid = features->oPid ? features->oPid : hdev->product; | |
4451e088 | 551 | |
41372d5d JG |
552 | /* The defined oVid/oPid must match that of the sibling */ |
553 | if (features->oVid != HID_ANY_ID && sibling->vendor != oVid) | |
554 | return false; | |
555 | if (features->oPid != HID_ANY_ID && sibling->product != oPid) | |
556 | return false; | |
557 | ||
558 | /* | |
559 | * Devices with the same VID/PID must share the same physical | |
560 | * device path, while those with different VID/PID must share | |
561 | * the same physical parent device path. | |
562 | */ | |
563 | if (hdev->vendor == sibling->vendor && hdev->product == sibling->product) { | |
564 | if (!compare_device_paths(hdev, sibling, '/')) | |
565 | return false; | |
566 | } else { | |
567 | if (!compare_device_paths(hdev, sibling, '.')) | |
568 | return false; | |
4451e088 | 569 | } |
aea2bf6a | 570 | |
41372d5d JG |
571 | /* Skip the remaining heuristics unless you are a HID_GENERIC device */ |
572 | if (features->type != HID_GENERIC) | |
573 | return true; | |
574 | ||
575 | /* | |
576 | * Direct-input devices may not be siblings of indirect-input | |
577 | * devices. | |
578 | */ | |
579 | if ((features->device_type & WACOM_DEVICETYPE_DIRECT) && | |
580 | !(sibling_features->device_type & WACOM_DEVICETYPE_DIRECT)) | |
4451e088 | 581 | return false; |
aea2bf6a | 582 | |
41372d5d JG |
583 | /* |
584 | * Indirect-input devices may not be siblings of direct-input | |
585 | * devices. | |
586 | */ | |
587 | if (!(features->device_type & WACOM_DEVICETYPE_DIRECT) && | |
588 | (sibling_features->device_type & WACOM_DEVICETYPE_DIRECT)) | |
4451e088 | 589 | return false; |
aea2bf6a | 590 | |
41372d5d JG |
591 | /* Pen devices may only be siblings of touch devices */ |
592 | if ((features->device_type & WACOM_DEVICETYPE_PEN) && | |
593 | !(sibling_features->device_type & WACOM_DEVICETYPE_TOUCH)) | |
594 | return false; | |
595 | ||
596 | /* Touch devices may only be siblings of pen devices */ | |
597 | if ((features->device_type & WACOM_DEVICETYPE_TOUCH) && | |
598 | !(sibling_features->device_type & WACOM_DEVICETYPE_PEN)) | |
599 | return false; | |
600 | ||
601 | /* | |
602 | * No reason could be found for these two devices to NOT be | |
603 | * siblings, so there's a good chance they ARE siblings | |
604 | */ | |
605 | return true; | |
aea2bf6a JG |
606 | } |
607 | ||
4451e088 | 608 | static struct wacom_hdev_data *wacom_get_hdev_data(struct hid_device *hdev) |
4492efff | 609 | { |
4451e088 | 610 | struct wacom_hdev_data *data; |
4492efff | 611 | |
41372d5d JG |
612 | /* Try to find an already-probed interface from the same device */ |
613 | list_for_each_entry(data, &wacom_udev_list, list) { | |
614 | if (compare_device_paths(hdev, data->dev, '/')) | |
615 | return data; | |
616 | } | |
617 | ||
618 | /* Fallback to finding devices that appear to be "siblings" */ | |
4492efff | 619 | list_for_each_entry(data, &wacom_udev_list, list) { |
4451e088 | 620 | if (wacom_are_sibling(hdev, data->dev)) { |
4492efff PC |
621 | kref_get(&data->kref); |
622 | return data; | |
623 | } | |
624 | } | |
625 | ||
626 | return NULL; | |
627 | } | |
628 | ||
1c817c83 BT |
629 | static void wacom_release_shared_data(struct kref *kref) |
630 | { | |
631 | struct wacom_hdev_data *data = | |
632 | container_of(kref, struct wacom_hdev_data, kref); | |
633 | ||
634 | mutex_lock(&wacom_udev_list_lock); | |
635 | list_del(&data->list); | |
636 | mutex_unlock(&wacom_udev_list_lock); | |
637 | ||
638 | kfree(data); | |
639 | } | |
640 | ||
641 | static void wacom_remove_shared_data(void *res) | |
642 | { | |
643 | struct wacom *wacom = res; | |
644 | struct wacom_hdev_data *data; | |
645 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
646 | ||
647 | if (wacom_wac->shared) { | |
648 | data = container_of(wacom_wac->shared, struct wacom_hdev_data, | |
649 | shared); | |
650 | ||
651 | if (wacom_wac->shared->touch == wacom->hdev) | |
652 | wacom_wac->shared->touch = NULL; | |
653 | else if (wacom_wac->shared->pen == wacom->hdev) | |
654 | wacom_wac->shared->pen = NULL; | |
655 | ||
656 | kref_put(&data->kref, wacom_release_shared_data); | |
657 | wacom_wac->shared = NULL; | |
658 | } | |
659 | } | |
660 | ||
4451e088 | 661 | static int wacom_add_shared_data(struct hid_device *hdev) |
4492efff | 662 | { |
4451e088 BT |
663 | struct wacom *wacom = hid_get_drvdata(hdev); |
664 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
665 | struct wacom_hdev_data *data; | |
4492efff PC |
666 | int retval = 0; |
667 | ||
668 | mutex_lock(&wacom_udev_list_lock); | |
669 | ||
4451e088 | 670 | data = wacom_get_hdev_data(hdev); |
4492efff | 671 | if (!data) { |
4451e088 | 672 | data = kzalloc(sizeof(struct wacom_hdev_data), GFP_KERNEL); |
4492efff PC |
673 | if (!data) { |
674 | retval = -ENOMEM; | |
675 | goto out; | |
676 | } | |
677 | ||
678 | kref_init(&data->kref); | |
4451e088 | 679 | data->dev = hdev; |
4492efff PC |
680 | list_add_tail(&data->list, &wacom_udev_list); |
681 | } | |
682 | ||
4451e088 | 683 | wacom_wac->shared = &data->shared; |
4492efff | 684 | |
1c817c83 BT |
685 | retval = devm_add_action(&hdev->dev, wacom_remove_shared_data, wacom); |
686 | if (retval) { | |
687 | mutex_unlock(&wacom_udev_list_lock); | |
688 | wacom_remove_shared_data(wacom); | |
689 | return retval; | |
690 | } | |
691 | ||
aa86b18c | 692 | if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH) |
a97ac104 | 693 | wacom_wac->shared->touch = hdev; |
aa86b18c | 694 | else if (wacom_wac->features.device_type & WACOM_DEVICETYPE_PEN) |
a97ac104 BT |
695 | wacom_wac->shared->pen = hdev; |
696 | ||
4492efff PC |
697 | out: |
698 | mutex_unlock(&wacom_udev_list_lock); | |
699 | return retval; | |
700 | } | |
701 | ||
5d7e7d47 EH |
702 | static int wacom_led_control(struct wacom *wacom) |
703 | { | |
704 | unsigned char *buf; | |
9b5b95dd | 705 | int retval; |
912ca216 PC |
706 | unsigned char report_id = WAC_CMD_LED_CONTROL; |
707 | int buf_size = 9; | |
5d7e7d47 | 708 | |
97f5541f BT |
709 | if (!hid_get_drvdata(wacom->hdev)) |
710 | return -ENODEV; | |
711 | ||
a50aac71 BT |
712 | if (!wacom->led.groups) |
713 | return -ENOTSUPP; | |
714 | ||
912ca216 PC |
715 | if (wacom->wacom_wac.pid) { /* wireless connected */ |
716 | report_id = WAC_CMD_WL_LED_CONTROL; | |
717 | buf_size = 13; | |
718 | } | |
719 | buf = kzalloc(buf_size, GFP_KERNEL); | |
5d7e7d47 EH |
720 | if (!buf) |
721 | return -ENOMEM; | |
722 | ||
9b5b95dd | 723 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
9a35c411 | 724 | wacom->wacom_wac.features.type <= INTUOSPL) { |
9b5b95dd JG |
725 | /* |
726 | * Touch Ring and crop mark LED luminance may take on | |
727 | * one of four values: | |
728 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
729 | */ | |
a50aac71 | 730 | int ring_led = wacom->led.groups[0].select & 0x03; |
9b5b95dd JG |
731 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; |
732 | int crop_lum = 0; | |
912ca216 PC |
733 | unsigned char led_bits = (crop_lum << 4) | (ring_lum << 2) | (ring_led); |
734 | ||
735 | buf[0] = report_id; | |
736 | if (wacom->wacom_wac.pid) { | |
737 | wacom_get_report(wacom->hdev, HID_FEATURE_REPORT, | |
738 | buf, buf_size, WAC_CMD_RETRIES); | |
739 | buf[0] = report_id; | |
740 | buf[4] = led_bits; | |
741 | } else | |
742 | buf[1] = led_bits; | |
9b5b95dd JG |
743 | } |
744 | else { | |
a50aac71 | 745 | int led = wacom->led.groups[0].select | 0x4; |
9b5b95dd JG |
746 | |
747 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
748 | wacom->wacom_wac.features.type == WACOM_24HD) | |
a50aac71 | 749 | led |= (wacom->led.groups[1].select << 4) | 0x40; |
9b5b95dd | 750 | |
912ca216 | 751 | buf[0] = report_id; |
9b5b95dd JG |
752 | buf[1] = led; |
753 | buf[2] = wacom->led.llv; | |
754 | buf[3] = wacom->led.hlv; | |
755 | buf[4] = wacom->led.img_lum; | |
756 | } | |
5d7e7d47 | 757 | |
912ca216 | 758 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, buf_size, |
296b7378 | 759 | WAC_CMD_RETRIES); |
5d7e7d47 EH |
760 | kfree(buf); |
761 | ||
762 | return retval; | |
763 | } | |
764 | ||
849e2f06 BT |
765 | static int wacom_led_putimage(struct wacom *wacom, int button_id, u8 xfer_id, |
766 | const unsigned len, const void *img) | |
5d7e7d47 EH |
767 | { |
768 | unsigned char *buf; | |
769 | int i, retval; | |
849e2f06 | 770 | const unsigned chunk_len = len / 4; /* 4 chunks are needed to be sent */ |
5d7e7d47 | 771 | |
849e2f06 | 772 | buf = kzalloc(chunk_len + 3 , GFP_KERNEL); |
5d7e7d47 EH |
773 | if (!buf) |
774 | return -ENOMEM; | |
775 | ||
776 | /* Send 'start' command */ | |
777 | buf[0] = WAC_CMD_ICON_START; | |
778 | buf[1] = 1; | |
296b7378 PF |
779 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2, |
780 | WAC_CMD_RETRIES); | |
5d7e7d47 EH |
781 | if (retval < 0) |
782 | goto out; | |
783 | ||
849e2f06 | 784 | buf[0] = xfer_id; |
5d7e7d47 EH |
785 | buf[1] = button_id & 0x07; |
786 | for (i = 0; i < 4; i++) { | |
787 | buf[2] = i; | |
849e2f06 | 788 | memcpy(buf + 3, img + i * chunk_len, chunk_len); |
5d7e7d47 | 789 | |
27b20a9d | 790 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, |
296b7378 | 791 | buf, chunk_len + 3, WAC_CMD_RETRIES); |
5d7e7d47 EH |
792 | if (retval < 0) |
793 | break; | |
794 | } | |
795 | ||
796 | /* Send 'stop' */ | |
797 | buf[0] = WAC_CMD_ICON_START; | |
798 | buf[1] = 0; | |
296b7378 PF |
799 | wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2, |
800 | WAC_CMD_RETRIES); | |
5d7e7d47 EH |
801 | |
802 | out: | |
803 | kfree(buf); | |
804 | return retval; | |
805 | } | |
806 | ||
09e7d941 | 807 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
808 | const char *buf, size_t count) |
809 | { | |
ee79a8f8 | 810 | struct hid_device *hdev = to_hid_device(dev); |
29b47391 | 811 | struct wacom *wacom = hid_get_drvdata(hdev); |
5d7e7d47 EH |
812 | unsigned int id; |
813 | int err; | |
814 | ||
815 | err = kstrtouint(buf, 10, &id); | |
816 | if (err) | |
817 | return err; | |
818 | ||
819 | mutex_lock(&wacom->lock); | |
820 | ||
a50aac71 | 821 | wacom->led.groups[set_id].select = id & 0x3; |
5d7e7d47 EH |
822 | err = wacom_led_control(wacom); |
823 | ||
824 | mutex_unlock(&wacom->lock); | |
825 | ||
826 | return err < 0 ? err : count; | |
827 | } | |
828 | ||
09e7d941 PC |
829 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
830 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
831 | struct device_attribute *attr, const char *buf, size_t count) \ | |
832 | { \ | |
833 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
834 | } \ | |
04c59abd PC |
835 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
836 | struct device_attribute *attr, char *buf) \ | |
837 | { \ | |
ee79a8f8 | 838 | struct hid_device *hdev = to_hid_device(dev);\ |
29b47391 | 839 | struct wacom *wacom = hid_get_drvdata(hdev); \ |
37449adc | 840 | return scnprintf(buf, PAGE_SIZE, "%d\n", \ |
a50aac71 | 841 | wacom->led.groups[SET_ID].select); \ |
04c59abd | 842 | } \ |
e0984bc3 | 843 | static DEVICE_ATTR(status_led##SET_ID##_select, DEV_ATTR_RW_PERM, \ |
04c59abd | 844 | wacom_led##SET_ID##_select_show, \ |
09e7d941 PC |
845 | wacom_led##SET_ID##_select_store) |
846 | ||
847 | DEVICE_LED_SELECT_ATTR(0); | |
848 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
849 | |
850 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
851 | const char *buf, size_t count) | |
852 | { | |
853 | unsigned int value; | |
854 | int err; | |
855 | ||
856 | err = kstrtouint(buf, 10, &value); | |
857 | if (err) | |
858 | return err; | |
859 | ||
860 | mutex_lock(&wacom->lock); | |
861 | ||
862 | *dest = value & 0x7f; | |
863 | err = wacom_led_control(wacom); | |
864 | ||
865 | mutex_unlock(&wacom->lock); | |
866 | ||
867 | return err < 0 ? err : count; | |
868 | } | |
869 | ||
870 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
871 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
872 | struct device_attribute *attr, const char *buf, size_t count) \ | |
873 | { \ | |
ee79a8f8 | 874 | struct hid_device *hdev = to_hid_device(dev);\ |
29b47391 | 875 | struct wacom *wacom = hid_get_drvdata(hdev); \ |
5d7e7d47 EH |
876 | \ |
877 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
878 | buf, count); \ | |
879 | } \ | |
37449adc PC |
880 | static ssize_t wacom_##name##_luminance_show(struct device *dev, \ |
881 | struct device_attribute *attr, char *buf) \ | |
882 | { \ | |
883 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
884 | return scnprintf(buf, PAGE_SIZE, "%d\n", wacom->led.field); \ | |
885 | } \ | |
e0984bc3 | 886 | static DEVICE_ATTR(name##_luminance, DEV_ATTR_RW_PERM, \ |
37449adc PC |
887 | wacom_##name##_luminance_show, \ |
888 | wacom_##name##_luminance_store) | |
5d7e7d47 EH |
889 | |
890 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
891 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
892 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
893 | ||
894 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
895 | const char *buf, size_t count) | |
896 | { | |
ee79a8f8 | 897 | struct hid_device *hdev = to_hid_device(dev); |
29b47391 | 898 | struct wacom *wacom = hid_get_drvdata(hdev); |
5d7e7d47 | 899 | int err; |
849e2f06 BT |
900 | unsigned len; |
901 | u8 xfer_id; | |
902 | ||
903 | if (hdev->bus == BUS_BLUETOOTH) { | |
904 | len = 256; | |
905 | xfer_id = WAC_CMD_ICON_BT_XFER; | |
906 | } else { | |
907 | len = 1024; | |
908 | xfer_id = WAC_CMD_ICON_XFER; | |
909 | } | |
5d7e7d47 | 910 | |
849e2f06 | 911 | if (count != len) |
5d7e7d47 EH |
912 | return -EINVAL; |
913 | ||
914 | mutex_lock(&wacom->lock); | |
915 | ||
849e2f06 | 916 | err = wacom_led_putimage(wacom, button_id, xfer_id, len, buf); |
5d7e7d47 EH |
917 | |
918 | mutex_unlock(&wacom->lock); | |
919 | ||
920 | return err < 0 ? err : count; | |
921 | } | |
922 | ||
923 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
924 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
925 | struct device_attribute *attr, const char *buf, size_t count) \ | |
926 | { \ | |
927 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
928 | } \ | |
e0984bc3 | 929 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, DEV_ATTR_WO_PERM, \ |
5d7e7d47 EH |
930 | NULL, wacom_btnimg##BUTTON_ID##_store) |
931 | ||
932 | DEVICE_BTNIMG_ATTR(0); | |
933 | DEVICE_BTNIMG_ATTR(1); | |
934 | DEVICE_BTNIMG_ATTR(2); | |
935 | DEVICE_BTNIMG_ATTR(3); | |
936 | DEVICE_BTNIMG_ATTR(4); | |
937 | DEVICE_BTNIMG_ATTR(5); | |
938 | DEVICE_BTNIMG_ATTR(6); | |
939 | DEVICE_BTNIMG_ATTR(7); | |
940 | ||
09e7d941 PC |
941 | static struct attribute *cintiq_led_attrs[] = { |
942 | &dev_attr_status_led0_select.attr, | |
943 | &dev_attr_status_led1_select.attr, | |
944 | NULL | |
945 | }; | |
946 | ||
947 | static struct attribute_group cintiq_led_attr_group = { | |
948 | .name = "wacom_led", | |
949 | .attrs = cintiq_led_attrs, | |
950 | }; | |
951 | ||
952 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
953 | &dev_attr_status0_luminance.attr, |
954 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 955 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
956 | &dev_attr_buttons_luminance.attr, |
957 | &dev_attr_button0_rawimg.attr, | |
958 | &dev_attr_button1_rawimg.attr, | |
959 | &dev_attr_button2_rawimg.attr, | |
960 | &dev_attr_button3_rawimg.attr, | |
961 | &dev_attr_button4_rawimg.attr, | |
962 | &dev_attr_button5_rawimg.attr, | |
963 | &dev_attr_button6_rawimg.attr, | |
964 | &dev_attr_button7_rawimg.attr, | |
965 | NULL | |
966 | }; | |
967 | ||
09e7d941 | 968 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 969 | .name = "wacom_led", |
09e7d941 | 970 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
971 | }; |
972 | ||
9b5b95dd JG |
973 | static struct attribute *intuos5_led_attrs[] = { |
974 | &dev_attr_status0_luminance.attr, | |
975 | &dev_attr_status_led0_select.attr, | |
976 | NULL | |
977 | }; | |
978 | ||
979 | static struct attribute_group intuos5_led_attr_group = { | |
980 | .name = "wacom_led", | |
981 | .attrs = intuos5_led_attrs, | |
982 | }; | |
983 | ||
2df68a88 BT |
984 | struct wacom_sysfs_group_devres { |
985 | struct attribute_group *group; | |
986 | struct kobject *root; | |
987 | }; | |
988 | ||
989 | static void wacom_devm_sysfs_group_release(struct device *dev, void *res) | |
990 | { | |
991 | struct wacom_sysfs_group_devres *devres = res; | |
992 | struct kobject *kobj = devres->root; | |
993 | ||
994 | dev_dbg(dev, "%s: dropping reference to %s\n", | |
995 | __func__, devres->group->name); | |
996 | sysfs_remove_group(kobj, devres->group); | |
997 | } | |
998 | ||
f9036bd4 BT |
999 | static int __wacom_devm_sysfs_create_group(struct wacom *wacom, |
1000 | struct kobject *root, | |
1001 | struct attribute_group *group) | |
2df68a88 BT |
1002 | { |
1003 | struct wacom_sysfs_group_devres *devres; | |
1004 | int error; | |
1005 | ||
1006 | devres = devres_alloc(wacom_devm_sysfs_group_release, | |
1007 | sizeof(struct wacom_sysfs_group_devres), | |
1008 | GFP_KERNEL); | |
1009 | if (!devres) | |
1010 | return -ENOMEM; | |
1011 | ||
1012 | devres->group = group; | |
f9036bd4 | 1013 | devres->root = root; |
2df68a88 BT |
1014 | |
1015 | error = sysfs_create_group(devres->root, group); | |
1016 | if (error) | |
1017 | return error; | |
1018 | ||
1019 | devres_add(&wacom->hdev->dev, devres); | |
1020 | ||
1021 | return 0; | |
1022 | } | |
1023 | ||
f9036bd4 BT |
1024 | static int wacom_devm_sysfs_create_group(struct wacom *wacom, |
1025 | struct attribute_group *group) | |
1026 | { | |
1027 | return __wacom_devm_sysfs_create_group(wacom, &wacom->hdev->dev.kobj, | |
1028 | group); | |
1029 | } | |
1030 | ||
34736aa9 | 1031 | enum led_brightness wacom_leds_brightness_get(struct wacom_led *led) |
97f5541f BT |
1032 | { |
1033 | struct wacom *wacom = led->wacom; | |
1034 | ||
1035 | if (wacom->led.max_hlv) | |
1036 | return led->hlv * LED_FULL / wacom->led.max_hlv; | |
1037 | ||
1038 | if (wacom->led.max_llv) | |
1039 | return led->llv * LED_FULL / wacom->led.max_llv; | |
1040 | ||
1041 | /* device doesn't support brightness tuning */ | |
1042 | return LED_FULL; | |
1043 | } | |
1044 | ||
1045 | static enum led_brightness __wacom_led_brightness_get(struct led_classdev *cdev) | |
1046 | { | |
1047 | struct wacom_led *led = container_of(cdev, struct wacom_led, cdev); | |
1048 | struct wacom *wacom = led->wacom; | |
1049 | ||
1050 | if (wacom->led.groups[led->group].select != led->id) | |
1051 | return LED_OFF; | |
1052 | ||
1053 | return wacom_leds_brightness_get(led); | |
1054 | } | |
1055 | ||
1056 | static int wacom_led_brightness_set(struct led_classdev *cdev, | |
1057 | enum led_brightness brightness) | |
1058 | { | |
1059 | struct wacom_led *led = container_of(cdev, struct wacom_led, cdev); | |
1060 | struct wacom *wacom = led->wacom; | |
1061 | int error; | |
1062 | ||
1063 | mutex_lock(&wacom->lock); | |
1064 | ||
1065 | if (!wacom->led.groups || (brightness == LED_OFF && | |
1066 | wacom->led.groups[led->group].select != led->id)) { | |
1067 | error = 0; | |
1068 | goto out; | |
1069 | } | |
1070 | ||
1071 | led->llv = wacom->led.llv = wacom->led.max_llv * brightness / LED_FULL; | |
1072 | led->hlv = wacom->led.hlv = wacom->led.max_hlv * brightness / LED_FULL; | |
1073 | ||
1074 | wacom->led.groups[led->group].select = led->id; | |
1075 | ||
1076 | error = wacom_led_control(wacom); | |
1077 | ||
1078 | out: | |
1079 | mutex_unlock(&wacom->lock); | |
1080 | ||
1081 | return error; | |
1082 | } | |
1083 | ||
1084 | static void wacom_led_readonly_brightness_set(struct led_classdev *cdev, | |
1085 | enum led_brightness brightness) | |
1086 | { | |
1087 | } | |
1088 | ||
1089 | static int wacom_led_register_one(struct device *dev, struct wacom *wacom, | |
1090 | struct wacom_led *led, unsigned int group, | |
1091 | unsigned int id, bool read_only) | |
1092 | { | |
1093 | int error; | |
1094 | char *name; | |
1095 | ||
1096 | name = devm_kasprintf(dev, GFP_KERNEL, | |
1097 | "%s::wacom-%d.%d", | |
1098 | dev_name(dev), | |
1099 | group, | |
1100 | id); | |
1101 | if (!name) | |
1102 | return -ENOMEM; | |
1103 | ||
34736aa9 BT |
1104 | if (!read_only) { |
1105 | led->trigger.name = name; | |
1106 | error = devm_led_trigger_register(dev, &led->trigger); | |
1107 | if (error) { | |
1108 | hid_err(wacom->hdev, | |
1109 | "failed to register LED trigger %s: %d\n", | |
1110 | led->cdev.name, error); | |
1111 | return error; | |
1112 | } | |
1113 | } | |
1114 | ||
97f5541f BT |
1115 | led->group = group; |
1116 | led->id = id; | |
1117 | led->wacom = wacom; | |
1118 | led->llv = wacom->led.llv; | |
1119 | led->hlv = wacom->led.hlv; | |
1120 | led->cdev.name = name; | |
1121 | led->cdev.max_brightness = LED_FULL; | |
1122 | led->cdev.flags = LED_HW_PLUGGABLE; | |
1123 | led->cdev.brightness_get = __wacom_led_brightness_get; | |
34736aa9 | 1124 | if (!read_only) { |
97f5541f | 1125 | led->cdev.brightness_set_blocking = wacom_led_brightness_set; |
34736aa9 BT |
1126 | led->cdev.default_trigger = led->cdev.name; |
1127 | } else { | |
97f5541f | 1128 | led->cdev.brightness_set = wacom_led_readonly_brightness_set; |
34736aa9 | 1129 | } |
97f5541f BT |
1130 | |
1131 | error = devm_led_classdev_register(dev, &led->cdev); | |
1132 | if (error) { | |
1133 | hid_err(wacom->hdev, | |
1134 | "failed to register LED %s: %d\n", | |
1135 | led->cdev.name, error); | |
1136 | led->cdev.name = NULL; | |
1137 | return error; | |
1138 | } | |
1139 | ||
1140 | return 0; | |
1141 | } | |
1142 | ||
589e5060 BT |
1143 | static void wacom_led_groups_release_one(void *data) |
1144 | { | |
1145 | struct wacom_group_leds *group = data; | |
1146 | ||
1147 | devres_release_group(group->dev, group); | |
1148 | } | |
1149 | ||
97f5541f BT |
1150 | static int wacom_led_groups_alloc_and_register_one(struct device *dev, |
1151 | struct wacom *wacom, | |
1152 | int group_id, int count, | |
1153 | bool read_only) | |
1154 | { | |
1155 | struct wacom_led *leds; | |
1156 | int i, error; | |
1157 | ||
1158 | if (group_id >= wacom->led.count || count <= 0) | |
1159 | return -EINVAL; | |
1160 | ||
1161 | if (!devres_open_group(dev, &wacom->led.groups[group_id], GFP_KERNEL)) | |
1162 | return -ENOMEM; | |
1163 | ||
1164 | leds = devm_kzalloc(dev, sizeof(struct wacom_led) * count, GFP_KERNEL); | |
1165 | if (!leds) { | |
1166 | error = -ENOMEM; | |
1167 | goto err; | |
1168 | } | |
1169 | ||
1170 | wacom->led.groups[group_id].leds = leds; | |
1171 | wacom->led.groups[group_id].count = count; | |
1172 | ||
1173 | for (i = 0; i < count; i++) { | |
1174 | error = wacom_led_register_one(dev, wacom, &leds[i], | |
1175 | group_id, i, read_only); | |
1176 | if (error) | |
1177 | goto err; | |
1178 | } | |
1179 | ||
589e5060 BT |
1180 | wacom->led.groups[group_id].dev = dev; |
1181 | ||
1182 | devres_close_group(dev, &wacom->led.groups[group_id]); | |
1183 | ||
1184 | /* | |
1185 | * There is a bug (?) in devm_led_classdev_register() in which its | |
1186 | * increments the refcount of the parent. If the parent is an input | |
1187 | * device, that means the ref count never reaches 0 when | |
1188 | * devm_input_device_release() gets called. | |
1189 | * This means that the LEDs are still there after disconnect. | |
1190 | * Manually force the release of the group so that the leds are released | |
1191 | * once we are done using them. | |
1192 | */ | |
1193 | error = devm_add_action_or_reset(&wacom->hdev->dev, | |
1194 | wacom_led_groups_release_one, | |
1195 | &wacom->led.groups[group_id]); | |
1196 | if (error) | |
1197 | return error; | |
1198 | ||
97f5541f BT |
1199 | return 0; |
1200 | ||
1201 | err: | |
1202 | devres_release_group(dev, &wacom->led.groups[group_id]); | |
1203 | return error; | |
1204 | } | |
1205 | ||
34736aa9 BT |
1206 | struct wacom_led *wacom_led_find(struct wacom *wacom, unsigned int group_id, |
1207 | unsigned int id) | |
1208 | { | |
1209 | struct wacom_group_leds *group; | |
1210 | ||
1211 | if (group_id >= wacom->led.count) | |
1212 | return NULL; | |
1213 | ||
1214 | group = &wacom->led.groups[group_id]; | |
1215 | ||
1216 | if (!group->leds) | |
1217 | return NULL; | |
1218 | ||
1219 | id %= group->count; | |
1220 | ||
1221 | return &group->leds[id]; | |
1222 | } | |
1223 | ||
1224 | /** | |
1225 | * wacom_led_next: gives the next available led with a wacom trigger. | |
1226 | * | |
1227 | * returns the next available struct wacom_led which has its default trigger | |
1228 | * or the current one if none is available. | |
1229 | */ | |
1230 | struct wacom_led *wacom_led_next(struct wacom *wacom, struct wacom_led *cur) | |
1231 | { | |
1232 | struct wacom_led *next_led; | |
1233 | int group, next; | |
1234 | ||
1235 | if (!wacom || !cur) | |
1236 | return NULL; | |
1237 | ||
1238 | group = cur->group; | |
1239 | next = cur->id; | |
1240 | ||
1241 | do { | |
1242 | next_led = wacom_led_find(wacom, group, ++next); | |
1243 | if (!next_led || next_led == cur) | |
1244 | return next_led; | |
1245 | } while (next_led->cdev.trigger != &next_led->trigger); | |
1246 | ||
1247 | return next_led; | |
1248 | } | |
1249 | ||
a50aac71 BT |
1250 | static void wacom_led_groups_release(void *data) |
1251 | { | |
1252 | struct wacom *wacom = data; | |
1253 | ||
1254 | wacom->led.groups = NULL; | |
97f5541f | 1255 | wacom->led.count = 0; |
a50aac71 BT |
1256 | } |
1257 | ||
1258 | static int wacom_led_groups_allocate(struct wacom *wacom, int count) | |
1259 | { | |
97f5541f | 1260 | struct device *dev = &wacom->hdev->dev; |
a50aac71 BT |
1261 | struct wacom_group_leds *groups; |
1262 | int error; | |
1263 | ||
97f5541f | 1264 | groups = devm_kzalloc(dev, sizeof(struct wacom_group_leds) * count, |
a50aac71 BT |
1265 | GFP_KERNEL); |
1266 | if (!groups) | |
1267 | return -ENOMEM; | |
1268 | ||
97f5541f | 1269 | error = devm_add_action_or_reset(dev, wacom_led_groups_release, wacom); |
a50aac71 BT |
1270 | if (error) |
1271 | return error; | |
1272 | ||
1273 | wacom->led.groups = groups; | |
97f5541f BT |
1274 | wacom->led.count = count; |
1275 | ||
1276 | return 0; | |
1277 | } | |
1278 | ||
1279 | static int wacom_leds_alloc_and_register(struct wacom *wacom, int group_count, | |
1280 | int led_per_group, bool read_only) | |
1281 | { | |
1282 | struct device *dev; | |
1283 | int i, error; | |
1284 | ||
1285 | if (!wacom->wacom_wac.pad_input) | |
1286 | return -EINVAL; | |
1287 | ||
1288 | dev = &wacom->wacom_wac.pad_input->dev; | |
1289 | ||
1290 | error = wacom_led_groups_allocate(wacom, group_count); | |
1291 | if (error) | |
1292 | return error; | |
1293 | ||
1294 | for (i = 0; i < group_count; i++) { | |
1295 | error = wacom_led_groups_alloc_and_register_one(dev, wacom, i, | |
1296 | led_per_group, | |
1297 | read_only); | |
1298 | if (error) | |
1299 | return error; | |
1300 | } | |
a50aac71 BT |
1301 | |
1302 | return 0; | |
1303 | } | |
1304 | ||
5d7e7d47 EH |
1305 | static int wacom_initialize_leds(struct wacom *wacom) |
1306 | { | |
1307 | int error; | |
1308 | ||
862cf553 JG |
1309 | if (!(wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD)) |
1310 | return 0; | |
1311 | ||
09e7d941 PC |
1312 | /* Initialize default values */ |
1313 | switch (wacom->wacom_wac.features.type) { | |
a19fc986 | 1314 | case INTUOS4S: |
09e7d941 | 1315 | case INTUOS4: |
81af7e61 | 1316 | case INTUOS4WL: |
09e7d941 | 1317 | case INTUOS4L: |
f4fa9a6d | 1318 | wacom->led.llv = 10; |
5d7e7d47 | 1319 | wacom->led.hlv = 20; |
97f5541f BT |
1320 | wacom->led.max_llv = 127; |
1321 | wacom->led.max_hlv = 127; | |
5d7e7d47 | 1322 | wacom->led.img_lum = 10; |
a50aac71 | 1323 | |
97f5541f | 1324 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); |
a50aac71 BT |
1325 | if (error) { |
1326 | hid_err(wacom->hdev, | |
1327 | "cannot create leds err: %d\n", error); | |
1328 | return error; | |
1329 | } | |
1330 | ||
2df68a88 BT |
1331 | error = wacom_devm_sysfs_create_group(wacom, |
1332 | &intuos4_led_attr_group); | |
09e7d941 PC |
1333 | break; |
1334 | ||
246835fc | 1335 | case WACOM_24HD: |
09e7d941 | 1336 | case WACOM_21UX2: |
09e7d941 PC |
1337 | wacom->led.llv = 0; |
1338 | wacom->led.hlv = 0; | |
1339 | wacom->led.img_lum = 0; | |
5d7e7d47 | 1340 | |
97f5541f | 1341 | error = wacom_leds_alloc_and_register(wacom, 2, 4, false); |
a50aac71 BT |
1342 | if (error) { |
1343 | hid_err(wacom->hdev, | |
1344 | "cannot create leds err: %d\n", error); | |
1345 | return error; | |
1346 | } | |
1347 | ||
2df68a88 BT |
1348 | error = wacom_devm_sysfs_create_group(wacom, |
1349 | &cintiq_led_attr_group); | |
09e7d941 PC |
1350 | break; |
1351 | ||
9b5b95dd JG |
1352 | case INTUOS5S: |
1353 | case INTUOS5: | |
1354 | case INTUOS5L: | |
9a35c411 PC |
1355 | case INTUOSPS: |
1356 | case INTUOSPM: | |
1357 | case INTUOSPL: | |
862cf553 | 1358 | wacom->led.llv = 32; |
97f5541f | 1359 | wacom->led.max_llv = 96; |
862cf553 | 1360 | |
97f5541f | 1361 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); |
a50aac71 BT |
1362 | if (error) { |
1363 | hid_err(wacom->hdev, | |
1364 | "cannot create leds err: %d\n", error); | |
1365 | return error; | |
1366 | } | |
1367 | ||
2df68a88 BT |
1368 | error = wacom_devm_sysfs_create_group(wacom, |
1369 | &intuos5_led_attr_group); | |
9b5b95dd JG |
1370 | break; |
1371 | ||
a50aac71 | 1372 | case REMOTE: |
97f5541f BT |
1373 | wacom->led.llv = 255; |
1374 | wacom->led.max_llv = 255; | |
a50aac71 BT |
1375 | error = wacom_led_groups_allocate(wacom, 5); |
1376 | if (error) { | |
1377 | hid_err(wacom->hdev, | |
1378 | "cannot create leds err: %d\n", error); | |
1379 | return error; | |
1380 | } | |
1381 | return 0; | |
1382 | ||
09e7d941 PC |
1383 | default: |
1384 | return 0; | |
5d7e7d47 EH |
1385 | } |
1386 | ||
09e7d941 | 1387 | if (error) { |
c31a408f | 1388 | hid_err(wacom->hdev, |
09e7d941 PC |
1389 | "cannot create sysfs group err: %d\n", error); |
1390 | return error; | |
1391 | } | |
1392 | wacom_led_control(wacom); | |
1393 | ||
5d7e7d47 EH |
1394 | return 0; |
1395 | } | |
1396 | ||
a1d552cc | 1397 | static enum power_supply_property wacom_battery_props[] = { |
9956953e | 1398 | POWER_SUPPLY_PROP_MODEL_NAME, |
71fa641e | 1399 | POWER_SUPPLY_PROP_PRESENT, |
ac8d1010 | 1400 | POWER_SUPPLY_PROP_STATUS, |
6e2a6e80 | 1401 | POWER_SUPPLY_PROP_SCOPE, |
a1d552cc CB |
1402 | POWER_SUPPLY_PROP_CAPACITY |
1403 | }; | |
1404 | ||
1405 | static int wacom_battery_get_property(struct power_supply *psy, | |
1406 | enum power_supply_property psp, | |
1407 | union power_supply_propval *val) | |
1408 | { | |
59d69bc8 | 1409 | struct wacom_battery *battery = power_supply_get_drvdata(psy); |
a1d552cc CB |
1410 | int ret = 0; |
1411 | ||
1412 | switch (psp) { | |
9956953e BT |
1413 | case POWER_SUPPLY_PROP_MODEL_NAME: |
1414 | val->strval = battery->wacom->wacom_wac.name; | |
1415 | break; | |
71fa641e | 1416 | case POWER_SUPPLY_PROP_PRESENT: |
59d69bc8 | 1417 | val->intval = battery->bat_connected; |
71fa641e | 1418 | break; |
6e2a6e80 BN |
1419 | case POWER_SUPPLY_PROP_SCOPE: |
1420 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
1421 | break; | |
a1d552cc | 1422 | case POWER_SUPPLY_PROP_CAPACITY: |
59d69bc8 | 1423 | val->intval = battery->battery_capacity; |
ac8d1010 BT |
1424 | break; |
1425 | case POWER_SUPPLY_PROP_STATUS: | |
59d69bc8 | 1426 | if (battery->bat_charging) |
ac8d1010 | 1427 | val->intval = POWER_SUPPLY_STATUS_CHARGING; |
59d69bc8 BT |
1428 | else if (battery->battery_capacity == 100 && |
1429 | battery->ps_connected) | |
ac8d1010 | 1430 | val->intval = POWER_SUPPLY_STATUS_FULL; |
59d69bc8 | 1431 | else if (battery->ps_connected) |
b0882cb7 | 1432 | val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING; |
ac8d1010 BT |
1433 | else |
1434 | val->intval = POWER_SUPPLY_STATUS_DISCHARGING; | |
a1d552cc CB |
1435 | break; |
1436 | default: | |
1437 | ret = -EINVAL; | |
1438 | break; | |
1439 | } | |
1440 | ||
1441 | return ret; | |
1442 | } | |
1443 | ||
59d69bc8 BT |
1444 | static int __wacom_initialize_battery(struct wacom *wacom, |
1445 | struct wacom_battery *battery) | |
a1d552cc | 1446 | { |
d70420b9 | 1447 | static atomic_t battery_no = ATOMIC_INIT(0); |
b189da90 | 1448 | struct device *dev = &wacom->hdev->dev; |
59d69bc8 | 1449 | struct power_supply_config psy_cfg = { .drv_data = battery, }; |
136ae5e9 | 1450 | struct power_supply *ps_bat; |
59d69bc8 | 1451 | struct power_supply_desc *bat_desc = &battery->bat_desc; |
d70420b9 | 1452 | unsigned long n; |
b189da90 BT |
1453 | int error; |
1454 | ||
1455 | if (!devres_open_group(dev, bat_desc, GFP_KERNEL)) | |
1456 | return -ENOMEM; | |
a1d552cc | 1457 | |
9956953e BT |
1458 | battery->wacom = wacom; |
1459 | ||
59d69bc8 BT |
1460 | n = atomic_inc_return(&battery_no) - 1; |
1461 | ||
1462 | bat_desc->properties = wacom_battery_props; | |
1463 | bat_desc->num_properties = ARRAY_SIZE(wacom_battery_props); | |
1464 | bat_desc->get_property = wacom_battery_get_property; | |
1465 | sprintf(battery->bat_name, "wacom_battery_%ld", n); | |
1466 | bat_desc->name = battery->bat_name; | |
96983296 | 1467 | bat_desc->type = POWER_SUPPLY_TYPE_USB; |
59d69bc8 BT |
1468 | bat_desc->use_for_apm = 0; |
1469 | ||
59d69bc8 BT |
1470 | ps_bat = devm_power_supply_register(dev, bat_desc, &psy_cfg); |
1471 | if (IS_ERR(ps_bat)) { | |
1472 | error = PTR_ERR(ps_bat); | |
1473 | goto err; | |
1474 | } | |
297d716f | 1475 | |
59d69bc8 | 1476 | power_supply_powers(ps_bat, &wacom->hdev->dev); |
7dbd229e | 1477 | |
59d69bc8 | 1478 | battery->battery = ps_bat; |
a1d552cc | 1479 | |
b189da90 | 1480 | devres_close_group(dev, bat_desc); |
7dbd229e | 1481 | return 0; |
b189da90 BT |
1482 | |
1483 | err: | |
1484 | devres_release_group(dev, bat_desc); | |
1485 | return error; | |
a1d552cc CB |
1486 | } |
1487 | ||
59d69bc8 BT |
1488 | static int wacom_initialize_battery(struct wacom *wacom) |
1489 | { | |
1490 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) | |
1491 | return __wacom_initialize_battery(wacom, &wacom->battery); | |
1492 | ||
1493 | return 0; | |
1494 | } | |
1495 | ||
a1d552cc CB |
1496 | static void wacom_destroy_battery(struct wacom *wacom) |
1497 | { | |
59d69bc8 BT |
1498 | if (wacom->battery.battery) { |
1499 | devres_release_group(&wacom->hdev->dev, | |
1500 | &wacom->battery.bat_desc); | |
1501 | wacom->battery.battery = NULL; | |
b7af2bb8 | 1502 | } |
a1d552cc CB |
1503 | } |
1504 | ||
f81a1295 BT |
1505 | static ssize_t wacom_show_speed(struct device *dev, |
1506 | struct device_attribute | |
1507 | *attr, char *buf) | |
1508 | { | |
ee79a8f8 | 1509 | struct hid_device *hdev = to_hid_device(dev); |
f81a1295 BT |
1510 | struct wacom *wacom = hid_get_drvdata(hdev); |
1511 | ||
1512 | return snprintf(buf, PAGE_SIZE, "%i\n", wacom->wacom_wac.bt_high_speed); | |
1513 | } | |
1514 | ||
1515 | static ssize_t wacom_store_speed(struct device *dev, | |
1516 | struct device_attribute *attr, | |
1517 | const char *buf, size_t count) | |
1518 | { | |
ee79a8f8 | 1519 | struct hid_device *hdev = to_hid_device(dev); |
f81a1295 BT |
1520 | struct wacom *wacom = hid_get_drvdata(hdev); |
1521 | u8 new_speed; | |
1522 | ||
1523 | if (kstrtou8(buf, 0, &new_speed)) | |
1524 | return -EINVAL; | |
1525 | ||
1526 | if (new_speed != 0 && new_speed != 1) | |
1527 | return -EINVAL; | |
1528 | ||
1529 | wacom_bt_query_tablet_data(hdev, new_speed, &wacom->wacom_wac.features); | |
1530 | ||
1531 | return count; | |
1532 | } | |
1533 | ||
e0984bc3 | 1534 | static DEVICE_ATTR(speed, DEV_ATTR_RW_PERM, |
f81a1295 BT |
1535 | wacom_show_speed, wacom_store_speed); |
1536 | ||
72b236d6 AS |
1537 | |
1538 | static ssize_t wacom_show_remote_mode(struct kobject *kobj, | |
1539 | struct kobj_attribute *kattr, | |
1540 | char *buf, int index) | |
1541 | { | |
2cf83833 | 1542 | struct device *dev = kobj_to_dev(kobj->parent); |
ee79a8f8 | 1543 | struct hid_device *hdev = to_hid_device(dev); |
72b236d6 AS |
1544 | struct wacom *wacom = hid_get_drvdata(hdev); |
1545 | u8 mode; | |
1546 | ||
a50aac71 | 1547 | mode = wacom->led.groups[index].select; |
72b236d6 AS |
1548 | if (mode >= 0 && mode < 3) |
1549 | return snprintf(buf, PAGE_SIZE, "%d\n", mode); | |
1550 | else | |
1551 | return snprintf(buf, PAGE_SIZE, "%d\n", -1); | |
1552 | } | |
1553 | ||
1554 | #define DEVICE_EKR_ATTR_GROUP(SET_ID) \ | |
1555 | static ssize_t wacom_show_remote##SET_ID##_mode(struct kobject *kobj, \ | |
1556 | struct kobj_attribute *kattr, char *buf) \ | |
1557 | { \ | |
1558 | return wacom_show_remote_mode(kobj, kattr, buf, SET_ID); \ | |
1559 | } \ | |
1560 | static struct kobj_attribute remote##SET_ID##_mode_attr = { \ | |
1561 | .attr = {.name = "remote_mode", \ | |
1562 | .mode = DEV_ATTR_RO_PERM}, \ | |
1563 | .show = wacom_show_remote##SET_ID##_mode, \ | |
1564 | }; \ | |
1565 | static struct attribute *remote##SET_ID##_serial_attrs[] = { \ | |
1566 | &remote##SET_ID##_mode_attr.attr, \ | |
1567 | NULL \ | |
1568 | }; \ | |
1569 | static struct attribute_group remote##SET_ID##_serial_group = { \ | |
1570 | .name = NULL, \ | |
1571 | .attrs = remote##SET_ID##_serial_attrs, \ | |
1572 | } | |
1573 | ||
1574 | DEVICE_EKR_ATTR_GROUP(0); | |
1575 | DEVICE_EKR_ATTR_GROUP(1); | |
1576 | DEVICE_EKR_ATTR_GROUP(2); | |
1577 | DEVICE_EKR_ATTR_GROUP(3); | |
1578 | DEVICE_EKR_ATTR_GROUP(4); | |
1579 | ||
e6f2813a BT |
1580 | static int wacom_remote_create_attr_group(struct wacom *wacom, __u32 serial, |
1581 | int index) | |
72b236d6 AS |
1582 | { |
1583 | int error = 0; | |
83e6b40e | 1584 | struct wacom_remote *remote = wacom->remote; |
72b236d6 | 1585 | |
e7749f6e | 1586 | remote->remotes[index].group.name = devm_kasprintf(&wacom->hdev->dev, |
83e6b40e BT |
1587 | GFP_KERNEL, |
1588 | "%d", serial); | |
e7749f6e | 1589 | if (!remote->remotes[index].group.name) |
72b236d6 | 1590 | return -ENOMEM; |
72b236d6 | 1591 | |
f9036bd4 | 1592 | error = __wacom_devm_sysfs_create_group(wacom, remote->remote_dir, |
e7749f6e | 1593 | &remote->remotes[index].group); |
72b236d6 | 1594 | if (error) { |
e7749f6e | 1595 | remote->remotes[index].group.name = NULL; |
72b236d6 AS |
1596 | hid_err(wacom->hdev, |
1597 | "cannot create sysfs group err: %d\n", error); | |
72b236d6 AS |
1598 | return error; |
1599 | } | |
1600 | ||
1601 | return 0; | |
1602 | } | |
1603 | ||
72b236d6 AS |
1604 | static int wacom_cmd_unpair_remote(struct wacom *wacom, unsigned char selector) |
1605 | { | |
1606 | const size_t buf_size = 2; | |
1607 | unsigned char *buf; | |
1608 | int retval; | |
1609 | ||
1610 | buf = kzalloc(buf_size, GFP_KERNEL); | |
1611 | if (!buf) | |
1612 | return -ENOMEM; | |
1613 | ||
1614 | buf[0] = WAC_CMD_DELETE_PAIRING; | |
1615 | buf[1] = selector; | |
1616 | ||
1617 | retval = wacom_set_report(wacom->hdev, HID_OUTPUT_REPORT, buf, | |
1618 | buf_size, WAC_CMD_RETRIES); | |
1619 | kfree(buf); | |
1620 | ||
1621 | return retval; | |
1622 | } | |
1623 | ||
1624 | static ssize_t wacom_store_unpair_remote(struct kobject *kobj, | |
1625 | struct kobj_attribute *attr, | |
1626 | const char *buf, size_t count) | |
1627 | { | |
1628 | unsigned char selector = 0; | |
2cf83833 | 1629 | struct device *dev = kobj_to_dev(kobj->parent); |
ee79a8f8 | 1630 | struct hid_device *hdev = to_hid_device(dev); |
72b236d6 AS |
1631 | struct wacom *wacom = hid_get_drvdata(hdev); |
1632 | int err; | |
1633 | ||
1634 | if (!strncmp(buf, "*\n", 2)) { | |
1635 | selector = WAC_CMD_UNPAIR_ALL; | |
1636 | } else { | |
1637 | hid_info(wacom->hdev, "remote: unrecognized unpair code: %s\n", | |
1638 | buf); | |
1639 | return -1; | |
1640 | } | |
1641 | ||
1642 | mutex_lock(&wacom->lock); | |
1643 | ||
1644 | err = wacom_cmd_unpair_remote(wacom, selector); | |
1645 | mutex_unlock(&wacom->lock); | |
1646 | ||
1647 | return err < 0 ? err : count; | |
1648 | } | |
1649 | ||
1650 | static struct kobj_attribute unpair_remote_attr = { | |
1651 | .attr = {.name = "unpair_remote", .mode = 0200}, | |
1652 | .store = wacom_store_unpair_remote, | |
1653 | }; | |
1654 | ||
1655 | static const struct attribute *remote_unpair_attrs[] = { | |
1656 | &unpair_remote_attr.attr, | |
1657 | NULL | |
1658 | }; | |
1659 | ||
83e6b40e BT |
1660 | static void wacom_remotes_destroy(void *data) |
1661 | { | |
1662 | struct wacom *wacom = data; | |
1663 | struct wacom_remote *remote = wacom->remote; | |
1664 | ||
1665 | if (!remote) | |
1666 | return; | |
1667 | ||
1668 | kobject_put(remote->remote_dir); | |
1669 | kfifo_free(&remote->remote_fifo); | |
1670 | wacom->remote = NULL; | |
1671 | } | |
1672 | ||
1673 | static int wacom_initialize_remotes(struct wacom *wacom) | |
72b236d6 AS |
1674 | { |
1675 | int error = 0; | |
83e6b40e | 1676 | struct wacom_remote *remote; |
72b236d6 AS |
1677 | int i; |
1678 | ||
1679 | if (wacom->wacom_wac.features.type != REMOTE) | |
1680 | return 0; | |
1681 | ||
83e6b40e BT |
1682 | remote = devm_kzalloc(&wacom->hdev->dev, sizeof(*wacom->remote), |
1683 | GFP_KERNEL); | |
1684 | if (!remote) | |
1685 | return -ENOMEM; | |
72b236d6 | 1686 | |
83e6b40e BT |
1687 | wacom->remote = remote; |
1688 | ||
1689 | spin_lock_init(&remote->remote_lock); | |
1690 | ||
1691 | error = kfifo_alloc(&remote->remote_fifo, | |
1692 | 5 * sizeof(struct wacom_remote_data), | |
1693 | GFP_KERNEL); | |
1694 | if (error) { | |
1695 | hid_err(wacom->hdev, "failed allocating remote_fifo\n"); | |
72b236d6 | 1696 | return -ENOMEM; |
83e6b40e | 1697 | } |
72b236d6 | 1698 | |
e7749f6e BT |
1699 | remote->remotes[0].group = remote0_serial_group; |
1700 | remote->remotes[1].group = remote1_serial_group; | |
1701 | remote->remotes[2].group = remote2_serial_group; | |
1702 | remote->remotes[3].group = remote3_serial_group; | |
1703 | remote->remotes[4].group = remote4_serial_group; | |
83e6b40e BT |
1704 | |
1705 | remote->remote_dir = kobject_create_and_add("wacom_remote", | |
1706 | &wacom->hdev->dev.kobj); | |
1707 | if (!remote->remote_dir) | |
1708 | return -ENOMEM; | |
1709 | ||
1710 | error = sysfs_create_files(remote->remote_dir, remote_unpair_attrs); | |
72b236d6 AS |
1711 | |
1712 | if (error) { | |
1713 | hid_err(wacom->hdev, | |
1714 | "cannot create sysfs group err: %d\n", error); | |
1715 | return error; | |
1716 | } | |
1717 | ||
1718 | for (i = 0; i < WACOM_MAX_REMOTES; i++) { | |
a50aac71 | 1719 | wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN; |
e7749f6e | 1720 | remote->remotes[i].serial = 0; |
72b236d6 AS |
1721 | } |
1722 | ||
83e6b40e BT |
1723 | error = devm_add_action_or_reset(&wacom->hdev->dev, |
1724 | wacom_remotes_destroy, wacom); | |
1725 | if (error) | |
1726 | return error; | |
1727 | ||
72b236d6 AS |
1728 | return 0; |
1729 | } | |
1730 | ||
d2d13f18 | 1731 | static struct input_dev *wacom_allocate_input(struct wacom *wacom) |
3aac0ef1 CB |
1732 | { |
1733 | struct input_dev *input_dev; | |
b6c79f2c | 1734 | struct hid_device *hdev = wacom->hdev; |
3aac0ef1 | 1735 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); |
3aac0ef1 | 1736 | |
3dad188e | 1737 | input_dev = devm_input_allocate_device(&hdev->dev); |
d2d13f18 BT |
1738 | if (!input_dev) |
1739 | return NULL; | |
3aac0ef1 | 1740 | |
2bdd163c | 1741 | input_dev->name = wacom_wac->features.name; |
b6c79f2c BT |
1742 | input_dev->phys = hdev->phys; |
1743 | input_dev->dev.parent = &hdev->dev; | |
3aac0ef1 CB |
1744 | input_dev->open = wacom_open; |
1745 | input_dev->close = wacom_close; | |
b6c79f2c BT |
1746 | input_dev->uniq = hdev->uniq; |
1747 | input_dev->id.bustype = hdev->bus; | |
1748 | input_dev->id.vendor = hdev->vendor; | |
12969e3b | 1749 | input_dev->id.product = wacom_wac->pid ? wacom_wac->pid : hdev->product; |
b6c79f2c | 1750 | input_dev->id.version = hdev->version; |
3aac0ef1 CB |
1751 | input_set_drvdata(input_dev, wacom); |
1752 | ||
d2d13f18 BT |
1753 | return input_dev; |
1754 | } | |
1755 | ||
d9f2d203 JG |
1756 | static int wacom_allocate_inputs(struct wacom *wacom) |
1757 | { | |
1758 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
1759 | ||
1760 | wacom_wac->pen_input = wacom_allocate_input(wacom); | |
1761 | wacom_wac->touch_input = wacom_allocate_input(wacom); | |
1762 | wacom_wac->pad_input = wacom_allocate_input(wacom); | |
3dad188e BT |
1763 | if (!wacom_wac->pen_input || |
1764 | !wacom_wac->touch_input || | |
1765 | !wacom_wac->pad_input) | |
d9f2d203 | 1766 | return -ENOMEM; |
d9f2d203 | 1767 | |
2bdd163c | 1768 | wacom_wac->pen_input->name = wacom_wac->pen_name; |
d9f2d203 JG |
1769 | wacom_wac->touch_input->name = wacom_wac->touch_name; |
1770 | wacom_wac->pad_input->name = wacom_wac->pad_name; | |
1771 | ||
1772 | return 0; | |
1773 | } | |
1774 | ||
2546dacd BT |
1775 | static int wacom_register_inputs(struct wacom *wacom) |
1776 | { | |
2a6cdbdd | 1777 | struct input_dev *pen_input_dev, *touch_input_dev, *pad_input_dev; |
2546dacd | 1778 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); |
2636a3f2 | 1779 | int error = 0; |
2546dacd | 1780 | |
2a6cdbdd JG |
1781 | pen_input_dev = wacom_wac->pen_input; |
1782 | touch_input_dev = wacom_wac->touch_input; | |
2546dacd BT |
1783 | pad_input_dev = wacom_wac->pad_input; |
1784 | ||
2a6cdbdd | 1785 | if (!pen_input_dev || !touch_input_dev || !pad_input_dev) |
2546dacd BT |
1786 | return -EINVAL; |
1787 | ||
2a6cdbdd JG |
1788 | error = wacom_setup_pen_input_capabilities(pen_input_dev, wacom_wac); |
1789 | if (error) { | |
1790 | /* no pen in use on this interface */ | |
1791 | input_free_device(pen_input_dev); | |
1792 | wacom_wac->pen_input = NULL; | |
1793 | pen_input_dev = NULL; | |
1794 | } else { | |
1795 | error = input_register_device(pen_input_dev); | |
1796 | if (error) | |
3dad188e | 1797 | goto fail; |
2a6cdbdd JG |
1798 | } |
1799 | ||
1800 | error = wacom_setup_touch_input_capabilities(touch_input_dev, wacom_wac); | |
1801 | if (error) { | |
1802 | /* no touch in use on this interface */ | |
1803 | input_free_device(touch_input_dev); | |
1804 | wacom_wac->touch_input = NULL; | |
1805 | touch_input_dev = NULL; | |
1806 | } else { | |
1807 | error = input_register_device(touch_input_dev); | |
30ebc1ae | 1808 | if (error) |
3dad188e | 1809 | goto fail; |
30ebc1ae | 1810 | } |
1963518b | 1811 | |
d2d13f18 BT |
1812 | error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac); |
1813 | if (error) { | |
1814 | /* no pad in use on this interface */ | |
1815 | input_free_device(pad_input_dev); | |
1816 | wacom_wac->pad_input = NULL; | |
1817 | pad_input_dev = NULL; | |
1818 | } else { | |
1819 | error = input_register_device(pad_input_dev); | |
1820 | if (error) | |
3dad188e | 1821 | goto fail; |
d2d13f18 BT |
1822 | } |
1823 | ||
1963518b | 1824 | return 0; |
3aac0ef1 | 1825 | |
3dad188e BT |
1826 | fail: |
1827 | wacom_wac->pad_input = NULL; | |
2a6cdbdd | 1828 | wacom_wac->touch_input = NULL; |
2a6cdbdd | 1829 | wacom_wac->pen_input = NULL; |
3aac0ef1 CB |
1830 | return error; |
1831 | } | |
1832 | ||
0be01712 JG |
1833 | /* |
1834 | * Not all devices report physical dimensions from HID. | |
1835 | * Compute the default from hardcoded logical dimension | |
1836 | * and resolution before driver overwrites them. | |
1837 | */ | |
1838 | static void wacom_set_default_phy(struct wacom_features *features) | |
1839 | { | |
1840 | if (features->x_resolution) { | |
1841 | features->x_phy = (features->x_max * 100) / | |
1842 | features->x_resolution; | |
1843 | features->y_phy = (features->y_max * 100) / | |
1844 | features->y_resolution; | |
1845 | } | |
1846 | } | |
1847 | ||
1848 | static void wacom_calculate_res(struct wacom_features *features) | |
1849 | { | |
1850 | /* set unit to "100th of a mm" for devices not reported by HID */ | |
1851 | if (!features->unit) { | |
1852 | features->unit = 0x11; | |
1853 | features->unitExpo = -3; | |
1854 | } | |
1855 | ||
1856 | features->x_resolution = wacom_calc_hid_res(features->x_max, | |
1857 | features->x_phy, | |
1858 | features->unit, | |
1859 | features->unitExpo); | |
1860 | features->y_resolution = wacom_calc_hid_res(features->y_max, | |
1861 | features->y_phy, | |
1862 | features->unit, | |
1863 | features->unitExpo); | |
1864 | } | |
1865 | ||
fce9957d JG |
1866 | void wacom_battery_work(struct work_struct *work) |
1867 | { | |
d17d1f17 | 1868 | struct wacom *wacom = container_of(work, struct wacom, battery_work); |
fce9957d JG |
1869 | |
1870 | if ((wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) && | |
59d69bc8 | 1871 | !wacom->battery.battery) { |
fce9957d JG |
1872 | wacom_initialize_battery(wacom); |
1873 | } | |
1874 | else if (!(wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) && | |
59d69bc8 | 1875 | wacom->battery.battery) { |
fce9957d JG |
1876 | wacom_destroy_battery(wacom); |
1877 | } | |
1878 | } | |
1879 | ||
01c846f9 BT |
1880 | static size_t wacom_compute_pktlen(struct hid_device *hdev) |
1881 | { | |
1882 | struct hid_report_enum *report_enum; | |
1883 | struct hid_report *report; | |
1884 | size_t size = 0; | |
1885 | ||
1886 | report_enum = hdev->report_enum + HID_INPUT_REPORT; | |
1887 | ||
1888 | list_for_each_entry(report, &report_enum->report_list, list) { | |
dabb05c6 | 1889 | size_t report_size = hid_report_len(report); |
01c846f9 BT |
1890 | if (report_size > size) |
1891 | size = report_size; | |
1892 | } | |
1893 | ||
1894 | return size; | |
1895 | } | |
1896 | ||
fd5f92b6 | 1897 | static void wacom_update_name(struct wacom *wacom, const char *suffix) |
c24eab4e PC |
1898 | { |
1899 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
1900 | struct wacom_features *features = &wacom_wac->features; | |
44b5250b | 1901 | char name[WACOM_NAME_MAX]; |
c24eab4e PC |
1902 | |
1903 | /* Generic devices name unspecified */ | |
1904 | if ((features->type == HID_GENERIC) && !strcmp("Wacom HID", features->name)) { | |
1905 | if (strstr(wacom->hdev->name, "Wacom") || | |
1906 | strstr(wacom->hdev->name, "wacom") || | |
1907 | strstr(wacom->hdev->name, "WACOM")) { | |
1908 | /* name is in HID descriptor, use it */ | |
44b5250b | 1909 | strlcpy(name, wacom->hdev->name, sizeof(name)); |
c24eab4e PC |
1910 | |
1911 | /* strip out excess whitespaces */ | |
1912 | while (1) { | |
44b5250b | 1913 | char *gap = strstr(name, " "); |
c24eab4e PC |
1914 | if (gap == NULL) |
1915 | break; | |
1916 | /* shift everything including the terminator */ | |
1917 | memmove(gap, gap+1, strlen(gap)); | |
1918 | } | |
1919 | /* get rid of trailing whitespace */ | |
44b5250b JG |
1920 | if (name[strlen(name)-1] == ' ') |
1921 | name[strlen(name)-1] = '\0'; | |
c24eab4e PC |
1922 | } else { |
1923 | /* no meaningful name retrieved. use product ID */ | |
44b5250b | 1924 | snprintf(name, sizeof(name), |
c24eab4e PC |
1925 | "%s %X", features->name, wacom->hdev->product); |
1926 | } | |
1927 | } else { | |
44b5250b | 1928 | strlcpy(name, features->name, sizeof(name)); |
c24eab4e PC |
1929 | } |
1930 | ||
9956953e BT |
1931 | snprintf(wacom_wac->name, sizeof(wacom_wac->name), "%s%s", |
1932 | name, suffix); | |
1933 | ||
c24eab4e | 1934 | /* Append the device type to the name */ |
2a6cdbdd | 1935 | snprintf(wacom_wac->pen_name, sizeof(wacom_wac->pen_name), |
fd5f92b6 | 1936 | "%s%s Pen", name, suffix); |
2a6cdbdd | 1937 | snprintf(wacom_wac->touch_name, sizeof(wacom_wac->touch_name), |
fd5f92b6 | 1938 | "%s%s Finger", name, suffix); |
c24eab4e | 1939 | snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name), |
fd5f92b6 | 1940 | "%s%s Pad", name, suffix); |
c24eab4e PC |
1941 | } |
1942 | ||
84dfbd7f BT |
1943 | static void wacom_release_resources(struct wacom *wacom) |
1944 | { | |
1945 | struct hid_device *hdev = wacom->hdev; | |
1946 | ||
1947 | if (!wacom->resources) | |
1948 | return; | |
1949 | ||
1950 | devres_release_group(&hdev->dev, wacom); | |
1951 | ||
1952 | wacom->resources = false; | |
1953 | ||
1954 | wacom->wacom_wac.pen_input = NULL; | |
1955 | wacom->wacom_wac.touch_input = NULL; | |
1956 | wacom->wacom_wac.pad_input = NULL; | |
1957 | } | |
1958 | ||
fd5f92b6 | 1959 | static int wacom_parse_and_register(struct wacom *wacom, bool wireless) |
3bea733a | 1960 | { |
c58ac3a8 BT |
1961 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; |
1962 | struct wacom_features *features = &wacom_wac->features; | |
1963 | struct hid_device *hdev = wacom->hdev; | |
e33da8a5 | 1964 | int error; |
7704ac93 | 1965 | unsigned int connect_mask = HID_CONNECT_HIDRAW; |
3bea733a | 1966 | |
01c846f9 | 1967 | features->pktlen = wacom_compute_pktlen(hdev); |
c58ac3a8 BT |
1968 | if (features->pktlen > WACOM_PKGLEN_MAX) |
1969 | return -EINVAL; | |
3bea733a | 1970 | |
84dfbd7f BT |
1971 | if (!devres_open_group(&hdev->dev, wacom, GFP_KERNEL)) |
1972 | return -ENOMEM; | |
1973 | ||
1974 | wacom->resources = true; | |
1975 | ||
3f14a63a JG |
1976 | error = wacom_allocate_inputs(wacom); |
1977 | if (error) | |
3888b0d5 | 1978 | goto fail; |
494078b0 | 1979 | |
8c97a765 BT |
1980 | /* |
1981 | * Bamboo Pad has a generic hid handling for the Pen, and we switch it | |
1982 | * into debug mode for the touch part. | |
1983 | * We ignore the other interfaces. | |
1984 | */ | |
1985 | if (features->type == BAMBOO_PAD) { | |
1986 | if (features->pktlen == WACOM_PKGLEN_PENABLED) { | |
1987 | features->type = HID_GENERIC; | |
1988 | } else if ((features->pktlen != WACOM_PKGLEN_BPAD_TOUCH) && | |
1989 | (features->pktlen != WACOM_PKGLEN_BPAD_TOUCH_USB)) { | |
1990 | error = -ENODEV; | |
3888b0d5 | 1991 | goto fail; |
8c97a765 BT |
1992 | } |
1993 | } | |
1994 | ||
401d7d10 PC |
1995 | /* set the default size in case we do not get them from hid */ |
1996 | wacom_set_default_phy(features); | |
1997 | ||
f393ee2b | 1998 | /* Retrieve the physical and logical size for touch devices */ |
c669fb2b | 1999 | wacom_retrieve_hid_descriptor(hdev, features); |
42f4f272 | 2000 | wacom_setup_device_quirks(wacom); |
042628ab | 2001 | |
aa86b18c JG |
2002 | if (features->device_type == WACOM_DEVICETYPE_NONE && |
2003 | features->type != WIRELESS) { | |
8e116d31 JG |
2004 | error = features->type == HID_GENERIC ? -ENODEV : 0; |
2005 | ||
042628ab | 2006 | dev_warn(&hdev->dev, "Unknown device_type for '%s'. %s.", |
8e116d31 JG |
2007 | hdev->name, |
2008 | error ? "Ignoring" : "Assuming pen"); | |
2009 | ||
2010 | if (error) | |
3888b0d5 | 2011 | goto fail; |
042628ab | 2012 | |
aa86b18c | 2013 | features->device_type |= WACOM_DEVICETYPE_PEN; |
042628ab JG |
2014 | } |
2015 | ||
401d7d10 PC |
2016 | wacom_calculate_res(features); |
2017 | ||
fd5f92b6 | 2018 | wacom_update_name(wacom, wireless ? " (WL)" : ""); |
4492efff | 2019 | |
f3586d2f PC |
2020 | error = wacom_add_shared_data(hdev); |
2021 | if (error) | |
3888b0d5 | 2022 | goto fail; |
49b764ae | 2023 | |
ccad85cc | 2024 | if (!(features->device_type & WACOM_DEVICETYPE_WL_MONITOR) && |
f81a1295 BT |
2025 | (features->quirks & WACOM_QUIRK_BATTERY)) { |
2026 | error = wacom_initialize_battery(wacom); | |
2027 | if (error) | |
3888b0d5 | 2028 | goto fail; |
f81a1295 BT |
2029 | } |
2030 | ||
3f14a63a JG |
2031 | error = wacom_register_inputs(wacom); |
2032 | if (error) | |
3888b0d5 | 2033 | goto fail; |
f81a1295 | 2034 | |
b62f6465 | 2035 | if (wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD) { |
85d2c77b BT |
2036 | error = wacom_initialize_leds(wacom); |
2037 | if (error) | |
3888b0d5 | 2038 | goto fail; |
85d2c77b | 2039 | |
83e6b40e | 2040 | error = wacom_initialize_remotes(wacom); |
b62f6465 | 2041 | if (error) |
3888b0d5 | 2042 | goto fail; |
b62f6465 BT |
2043 | } |
2044 | ||
7704ac93 BT |
2045 | if (features->type == HID_GENERIC) |
2046 | connect_mask |= HID_CONNECT_DRIVER; | |
2047 | ||
29b47391 | 2048 | /* Regular HID work starts now */ |
7704ac93 | 2049 | error = hid_hw_start(hdev, connect_mask); |
29b47391 BT |
2050 | if (error) { |
2051 | hid_err(hdev, "hw start failed\n"); | |
3888b0d5 | 2052 | goto fail; |
d3825d51 | 2053 | } |
961794a0 | 2054 | |
fd5f92b6 BT |
2055 | if (!wireless) { |
2056 | /* Note that if query fails it is not a hard failure */ | |
2057 | wacom_query_tablet_data(hdev, features); | |
2058 | } | |
86e88f0e JG |
2059 | |
2060 | /* touch only Bamboo doesn't support pen */ | |
2061 | if ((features->type == BAMBOO_TOUCH) && | |
2062 | (features->device_type & WACOM_DEVICETYPE_PEN)) { | |
2063 | error = -ENODEV; | |
b62f6465 | 2064 | goto fail_quirks; |
86e88f0e JG |
2065 | } |
2066 | ||
2067 | /* pen only Bamboo neither support touch nor pad */ | |
2068 | if ((features->type == BAMBOO_PEN) && | |
2069 | ((features->device_type & WACOM_DEVICETYPE_TOUCH) || | |
2070 | (features->device_type & WACOM_DEVICETYPE_PAD))) { | |
2071 | error = -ENODEV; | |
b62f6465 | 2072 | goto fail_quirks; |
86e88f0e JG |
2073 | } |
2074 | ||
ccad85cc | 2075 | if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR) |
29b47391 BT |
2076 | error = hid_hw_open(hdev); |
2077 | ||
eda01dab | 2078 | if ((wacom_wac->features.type == INTUOSHT || |
97f9afa4 | 2079 | wacom_wac->features.type == INTUOSHT2) && |
eda01dab | 2080 | (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH)) { |
97f9afa4 BT |
2081 | wacom_wac->shared->type = wacom_wac->features.type; |
2082 | wacom_wac->shared->touch_input = wacom_wac->touch_input; | |
961794a0 PC |
2083 | } |
2084 | ||
84dfbd7f BT |
2085 | devres_close_group(&hdev->dev, wacom); |
2086 | ||
3bea733a PC |
2087 | return 0; |
2088 | ||
b62f6465 | 2089 | fail_quirks: |
c58ac3a8 | 2090 | hid_hw_stop(hdev); |
3888b0d5 | 2091 | fail: |
84dfbd7f | 2092 | wacom_release_resources(wacom); |
c58ac3a8 BT |
2093 | return error; |
2094 | } | |
2095 | ||
a2f091af BT |
2096 | static void wacom_wireless_work(struct work_struct *work) |
2097 | { | |
d17d1f17 | 2098 | struct wacom *wacom = container_of(work, struct wacom, wireless_work); |
a2f091af BT |
2099 | struct usb_device *usbdev = wacom->usbdev; |
2100 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
2101 | struct hid_device *hdev1, *hdev2; | |
2102 | struct wacom *wacom1, *wacom2; | |
2103 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
2104 | int error; | |
2105 | ||
2106 | /* | |
2107 | * Regardless if this is a disconnect or a new tablet, | |
2108 | * remove any existing input and battery devices. | |
2109 | */ | |
2110 | ||
2111 | wacom_destroy_battery(wacom); | |
2112 | ||
2113 | /* Stylus interface */ | |
2114 | hdev1 = usb_get_intfdata(usbdev->config->interface[1]); | |
2115 | wacom1 = hid_get_drvdata(hdev1); | |
2116 | wacom_wac1 = &(wacom1->wacom_wac); | |
84dfbd7f | 2117 | wacom_release_resources(wacom1); |
a2f091af BT |
2118 | |
2119 | /* Touch interface */ | |
2120 | hdev2 = usb_get_intfdata(usbdev->config->interface[2]); | |
2121 | wacom2 = hid_get_drvdata(hdev2); | |
2122 | wacom_wac2 = &(wacom2->wacom_wac); | |
84dfbd7f | 2123 | wacom_release_resources(wacom2); |
a2f091af BT |
2124 | |
2125 | if (wacom_wac->pid == 0) { | |
2126 | hid_info(wacom->hdev, "wireless tablet disconnected\n"); | |
a2f091af BT |
2127 | } else { |
2128 | const struct hid_device_id *id = wacom_ids; | |
2129 | ||
2130 | hid_info(wacom->hdev, "wireless tablet connected with PID %x\n", | |
2131 | wacom_wac->pid); | |
2132 | ||
2133 | while (id->bus) { | |
2134 | if (id->vendor == USB_VENDOR_ID_WACOM && | |
2135 | id->product == wacom_wac->pid) | |
2136 | break; | |
2137 | id++; | |
2138 | } | |
2139 | ||
2140 | if (!id->bus) { | |
2141 | hid_info(wacom->hdev, "ignoring unknown PID.\n"); | |
2142 | return; | |
2143 | } | |
2144 | ||
2145 | /* Stylus interface */ | |
2146 | wacom_wac1->features = | |
2147 | *((struct wacom_features *)id->driver_data); | |
fd5f92b6 | 2148 | |
a2f091af | 2149 | wacom_wac1->pid = wacom_wac->pid; |
fd5f92b6 BT |
2150 | hid_hw_stop(hdev1); |
2151 | error = wacom_parse_and_register(wacom1, true); | |
a2f091af BT |
2152 | if (error) |
2153 | goto fail; | |
2154 | ||
2155 | /* Touch interface */ | |
2156 | if (wacom_wac1->features.touch_max || | |
2157 | (wacom_wac1->features.type >= INTUOSHT && | |
2158 | wacom_wac1->features.type <= BAMBOO_PT)) { | |
2159 | wacom_wac2->features = | |
2160 | *((struct wacom_features *)id->driver_data); | |
a2f091af | 2161 | wacom_wac2->pid = wacom_wac->pid; |
fd5f92b6 BT |
2162 | hid_hw_stop(hdev2); |
2163 | error = wacom_parse_and_register(wacom2, true); | |
a2f091af BT |
2164 | if (error) |
2165 | goto fail; | |
a2f091af BT |
2166 | } |
2167 | ||
9956953e BT |
2168 | strlcpy(wacom_wac->name, wacom_wac1->name, |
2169 | sizeof(wacom_wac->name)); | |
a2f091af BT |
2170 | error = wacom_initialize_battery(wacom); |
2171 | if (error) | |
2172 | goto fail; | |
2173 | } | |
2174 | ||
2175 | return; | |
2176 | ||
2177 | fail: | |
84dfbd7f | 2178 | wacom_release_resources(wacom1); |
84dfbd7f | 2179 | wacom_release_resources(wacom2); |
a2f091af BT |
2180 | return; |
2181 | } | |
2182 | ||
04bfa27b BT |
2183 | static void wacom_remote_destroy_one(struct wacom *wacom, unsigned int index) |
2184 | { | |
2185 | struct wacom_remote *remote = wacom->remote; | |
e7749f6e | 2186 | u32 serial = remote->remotes[index].serial; |
04bfa27b | 2187 | int i; |
7c35dc3c BT |
2188 | unsigned long flags; |
2189 | ||
2190 | spin_lock_irqsave(&remote->remote_lock, flags); | |
2191 | remote->remotes[index].registered = false; | |
2192 | spin_unlock_irqrestore(&remote->remote_lock, flags); | |
04bfa27b | 2193 | |
9f1015d4 BT |
2194 | if (remote->remotes[index].battery.battery) |
2195 | devres_release_group(&wacom->hdev->dev, | |
2196 | &remote->remotes[index].battery.bat_desc); | |
2197 | ||
e7749f6e BT |
2198 | if (remote->remotes[index].group.name) |
2199 | devres_release_group(&wacom->hdev->dev, | |
2200 | &remote->remotes[index]); | |
04bfa27b BT |
2201 | |
2202 | for (i = 0; i < WACOM_MAX_REMOTES; i++) { | |
e7749f6e BT |
2203 | if (remote->remotes[i].serial == serial) { |
2204 | remote->remotes[i].serial = 0; | |
2205 | remote->remotes[i].group.name = NULL; | |
7c35dc3c | 2206 | remote->remotes[i].registered = false; |
9f1015d4 | 2207 | remote->remotes[i].battery.battery = NULL; |
04bfa27b BT |
2208 | wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN; |
2209 | } | |
2210 | } | |
2211 | } | |
2212 | ||
2213 | static int wacom_remote_create_one(struct wacom *wacom, u32 serial, | |
2214 | unsigned int index) | |
2215 | { | |
2216 | struct wacom_remote *remote = wacom->remote; | |
f9036bd4 | 2217 | struct device *dev = &wacom->hdev->dev; |
04bfa27b BT |
2218 | int error, k; |
2219 | ||
2220 | /* A remote can pair more than once with an EKR, | |
2221 | * check to make sure this serial isn't already paired. | |
2222 | */ | |
2223 | for (k = 0; k < WACOM_MAX_REMOTES; k++) { | |
e7749f6e | 2224 | if (remote->remotes[k].serial == serial) |
04bfa27b BT |
2225 | break; |
2226 | } | |
2227 | ||
2228 | if (k < WACOM_MAX_REMOTES) { | |
e7749f6e | 2229 | remote->remotes[index].serial = serial; |
04bfa27b BT |
2230 | return 0; |
2231 | } | |
2232 | ||
e7749f6e | 2233 | if (!devres_open_group(dev, &remote->remotes[index], GFP_KERNEL)) |
f9036bd4 BT |
2234 | return -ENOMEM; |
2235 | ||
04bfa27b BT |
2236 | error = wacom_remote_create_attr_group(wacom, serial, index); |
2237 | if (error) | |
f9036bd4 | 2238 | goto fail; |
04bfa27b | 2239 | |
7c35dc3c BT |
2240 | remote->remotes[index].input = wacom_allocate_input(wacom); |
2241 | if (!remote->remotes[index].input) { | |
2242 | error = -ENOMEM; | |
2243 | goto fail; | |
2244 | } | |
2245 | remote->remotes[index].input->uniq = remote->remotes[index].group.name; | |
2246 | remote->remotes[index].input->name = wacom->wacom_wac.pad_name; | |
2247 | ||
2248 | if (!remote->remotes[index].input->name) { | |
2249 | error = -EINVAL; | |
2250 | goto fail; | |
2251 | } | |
2252 | ||
2253 | error = wacom_setup_pad_input_capabilities(remote->remotes[index].input, | |
2254 | &wacom->wacom_wac); | |
2255 | if (error) | |
2256 | goto fail; | |
2257 | ||
e7749f6e | 2258 | remote->remotes[index].serial = serial; |
04bfa27b | 2259 | |
7c35dc3c BT |
2260 | error = input_register_device(remote->remotes[index].input); |
2261 | if (error) | |
2262 | goto fail; | |
2263 | ||
97f5541f BT |
2264 | error = wacom_led_groups_alloc_and_register_one( |
2265 | &remote->remotes[index].input->dev, | |
2266 | wacom, index, 3, true); | |
2267 | if (error) | |
2268 | goto fail; | |
2269 | ||
7c35dc3c BT |
2270 | remote->remotes[index].registered = true; |
2271 | ||
e7749f6e | 2272 | devres_close_group(dev, &remote->remotes[index]); |
04bfa27b | 2273 | return 0; |
f9036bd4 BT |
2274 | |
2275 | fail: | |
e7749f6e BT |
2276 | devres_release_group(dev, &remote->remotes[index]); |
2277 | remote->remotes[index].serial = 0; | |
f9036bd4 | 2278 | return error; |
04bfa27b BT |
2279 | } |
2280 | ||
9f1015d4 BT |
2281 | static int wacom_remote_attach_battery(struct wacom *wacom, int index) |
2282 | { | |
2283 | struct wacom_remote *remote = wacom->remote; | |
2284 | int error; | |
2285 | ||
2286 | if (!remote->remotes[index].registered) | |
2287 | return 0; | |
2288 | ||
2289 | if (remote->remotes[index].battery.battery) | |
2290 | return 0; | |
2291 | ||
2292 | if (wacom->led.groups[index].select == WACOM_STATUS_UNKNOWN) | |
2293 | return 0; | |
2294 | ||
2295 | error = __wacom_initialize_battery(wacom, | |
2296 | &wacom->remote->remotes[index].battery); | |
2297 | if (error) | |
2298 | return error; | |
2299 | ||
2300 | return 0; | |
2301 | } | |
2302 | ||
e6f2813a BT |
2303 | static void wacom_remote_work(struct work_struct *work) |
2304 | { | |
2305 | struct wacom *wacom = container_of(work, struct wacom, remote_work); | |
83e6b40e | 2306 | struct wacom_remote *remote = wacom->remote; |
e6f2813a BT |
2307 | struct wacom_remote_data data; |
2308 | unsigned long flags; | |
2309 | unsigned int count; | |
2310 | u32 serial; | |
04bfa27b | 2311 | int i; |
e6f2813a | 2312 | |
83e6b40e | 2313 | spin_lock_irqsave(&remote->remote_lock, flags); |
e6f2813a | 2314 | |
83e6b40e | 2315 | count = kfifo_out(&remote->remote_fifo, &data, sizeof(data)); |
e6f2813a BT |
2316 | |
2317 | if (count != sizeof(data)) { | |
2318 | hid_err(wacom->hdev, | |
2319 | "workitem triggered without status available\n"); | |
83e6b40e | 2320 | spin_unlock_irqrestore(&remote->remote_lock, flags); |
e6f2813a BT |
2321 | return; |
2322 | } | |
2323 | ||
83e6b40e | 2324 | if (!kfifo_is_empty(&remote->remote_fifo)) |
e6f2813a BT |
2325 | wacom_schedule_work(&wacom->wacom_wac, WACOM_WORKER_REMOTE); |
2326 | ||
83e6b40e | 2327 | spin_unlock_irqrestore(&remote->remote_lock, flags); |
e6f2813a BT |
2328 | |
2329 | for (i = 0; i < WACOM_MAX_REMOTES; i++) { | |
2330 | serial = data.remote[i].serial; | |
2331 | if (data.remote[i].connected) { | |
2332 | ||
9f1015d4 BT |
2333 | if (remote->remotes[i].serial == serial) { |
2334 | wacom_remote_attach_battery(wacom, i); | |
e6f2813a | 2335 | continue; |
9f1015d4 | 2336 | } |
e6f2813a | 2337 | |
e7749f6e | 2338 | if (remote->remotes[i].serial) |
04bfa27b | 2339 | wacom_remote_destroy_one(wacom, i); |
e6f2813a | 2340 | |
04bfa27b | 2341 | wacom_remote_create_one(wacom, serial, i); |
e6f2813a | 2342 | |
e7749f6e | 2343 | } else if (remote->remotes[i].serial) { |
04bfa27b | 2344 | wacom_remote_destroy_one(wacom, i); |
e6f2813a BT |
2345 | } |
2346 | } | |
2347 | } | |
2348 | ||
c58ac3a8 BT |
2349 | static int wacom_probe(struct hid_device *hdev, |
2350 | const struct hid_device_id *id) | |
2351 | { | |
2352 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); | |
2353 | struct usb_device *dev = interface_to_usbdev(intf); | |
2354 | struct wacom *wacom; | |
2355 | struct wacom_wac *wacom_wac; | |
2356 | struct wacom_features *features; | |
2357 | int error; | |
2358 | ||
2359 | if (!id->driver_data) | |
2360 | return -EINVAL; | |
2361 | ||
2362 | hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; | |
2363 | ||
2364 | /* hid-core sets this quirk for the boot interface */ | |
2365 | hdev->quirks &= ~HID_QUIRK_NOGET; | |
2366 | ||
19b64330 | 2367 | wacom = devm_kzalloc(&hdev->dev, sizeof(struct wacom), GFP_KERNEL); |
c58ac3a8 BT |
2368 | if (!wacom) |
2369 | return -ENOMEM; | |
2370 | ||
2371 | hid_set_drvdata(hdev, wacom); | |
2372 | wacom->hdev = hdev; | |
2373 | ||
2374 | wacom_wac = &wacom->wacom_wac; | |
2375 | wacom_wac->features = *((struct wacom_features *)id->driver_data); | |
2376 | features = &wacom_wac->features; | |
2377 | ||
2378 | if (features->check_for_hid_type && features->hid_type != hdev->type) { | |
2379 | error = -ENODEV; | |
3888b0d5 | 2380 | goto fail; |
c58ac3a8 BT |
2381 | } |
2382 | ||
c6fa1aeb | 2383 | wacom_wac->hid_data.inputmode = -1; |
326ea2a9 | 2384 | wacom_wac->mode_report = -1; |
c6fa1aeb | 2385 | |
c58ac3a8 BT |
2386 | wacom->usbdev = dev; |
2387 | wacom->intf = intf; | |
2388 | mutex_init(&wacom->lock); | |
d17d1f17 BT |
2389 | INIT_WORK(&wacom->wireless_work, wacom_wireless_work); |
2390 | INIT_WORK(&wacom->battery_work, wacom_battery_work); | |
e6f2813a | 2391 | INIT_WORK(&wacom->remote_work, wacom_remote_work); |
c58ac3a8 BT |
2392 | |
2393 | /* ask for the report descriptor to be loaded by HID */ | |
2394 | error = hid_parse(hdev); | |
2395 | if (error) { | |
2396 | hid_err(hdev, "parse failed\n"); | |
3888b0d5 | 2397 | goto fail; |
c58ac3a8 BT |
2398 | } |
2399 | ||
fd5f92b6 | 2400 | error = wacom_parse_and_register(wacom, false); |
c58ac3a8 | 2401 | if (error) |
3888b0d5 | 2402 | goto fail; |
c58ac3a8 BT |
2403 | |
2404 | if (hdev->bus == BUS_BLUETOOTH) { | |
2405 | error = device_create_file(&hdev->dev, &dev_attr_speed); | |
2406 | if (error) | |
2407 | hid_warn(hdev, | |
2408 | "can't create sysfs speed attribute err: %d\n", | |
2409 | error); | |
2410 | } | |
2411 | ||
2412 | return 0; | |
2413 | ||
3888b0d5 | 2414 | fail: |
29b47391 | 2415 | hid_set_drvdata(hdev, NULL); |
5014186d | 2416 | return error; |
3bea733a PC |
2417 | } |
2418 | ||
29b47391 | 2419 | static void wacom_remove(struct hid_device *hdev) |
3bea733a | 2420 | { |
29b47391 | 2421 | struct wacom *wacom = hid_get_drvdata(hdev); |
f6205161 BT |
2422 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; |
2423 | struct wacom_features *features = &wacom_wac->features; | |
2424 | ||
2425 | if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR) | |
2426 | hid_hw_close(hdev); | |
3bea733a | 2427 | |
29b47391 | 2428 | hid_hw_stop(hdev); |
e7224094 | 2429 | |
d17d1f17 BT |
2430 | cancel_work_sync(&wacom->wireless_work); |
2431 | cancel_work_sync(&wacom->battery_work); | |
e6f2813a | 2432 | cancel_work_sync(&wacom->remote_work); |
f81a1295 BT |
2433 | if (hdev->bus == BUS_BLUETOOTH) |
2434 | device_remove_file(&hdev->dev, &dev_attr_speed); | |
e7224094 | 2435 | |
29b47391 | 2436 | hid_set_drvdata(hdev, NULL); |
e7224094 ON |
2437 | } |
2438 | ||
41a74581 | 2439 | #ifdef CONFIG_PM |
29b47391 | 2440 | static int wacom_resume(struct hid_device *hdev) |
e7224094 | 2441 | { |
29b47391 | 2442 | struct wacom *wacom = hid_get_drvdata(hdev); |
51269fe8 | 2443 | struct wacom_features *features = &wacom->wacom_wac.features; |
e7224094 ON |
2444 | |
2445 | mutex_lock(&wacom->lock); | |
38101475 PC |
2446 | |
2447 | /* switch to wacom mode first */ | |
27b20a9d | 2448 | wacom_query_tablet_data(hdev, features); |
5d7e7d47 | 2449 | wacom_led_control(wacom); |
38101475 | 2450 | |
e7224094 ON |
2451 | mutex_unlock(&wacom->lock); |
2452 | ||
29b47391 | 2453 | return 0; |
e7224094 ON |
2454 | } |
2455 | ||
29b47391 | 2456 | static int wacom_reset_resume(struct hid_device *hdev) |
e7224094 | 2457 | { |
29b47391 | 2458 | return wacom_resume(hdev); |
3bea733a | 2459 | } |
41a74581 | 2460 | #endif /* CONFIG_PM */ |
3bea733a | 2461 | |
29b47391 | 2462 | static struct hid_driver wacom_driver = { |
3bea733a | 2463 | .name = "wacom", |
b036f6fb | 2464 | .id_table = wacom_ids, |
3bea733a | 2465 | .probe = wacom_probe, |
29b47391 | 2466 | .remove = wacom_remove, |
7704ac93 | 2467 | .report = wacom_wac_report, |
29b47391 | 2468 | #ifdef CONFIG_PM |
e7224094 ON |
2469 | .resume = wacom_resume, |
2470 | .reset_resume = wacom_reset_resume, | |
29b47391 BT |
2471 | #endif |
2472 | .raw_event = wacom_raw_event, | |
3bea733a | 2473 | }; |
29b47391 | 2474 | module_hid_driver(wacom_driver); |
f2e0a7d4 BT |
2475 | |
2476 | MODULE_VERSION(DRIVER_VERSION); | |
2477 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
2478 | MODULE_DESCRIPTION(DRIVER_DESC); | |
2479 | MODULE_LICENSE(DRIVER_LICENSE); |