Commit | Line | Data |
---|---|---|
2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
3bea733a | 2 | /* |
4104d13f | 3 | * drivers/input/tablet/wacom_sys.c |
3bea733a | 4 | * |
232f5693 | 5 | * USB Wacom tablet support - system specific code |
3bea733a PC |
6 | */ |
7 | ||
8 | /* | |
3bea733a PC |
9 | */ |
10 | ||
3bea733a | 11 | #include "wacom_wac.h" |
51269fe8 | 12 | #include "wacom.h" |
b58ba1ba | 13 | #include <linux/input/mt.h> |
3bea733a | 14 | |
a417ea44 | 15 | #define WAC_MSG_RETRIES 5 |
5d7e7d47 EH |
16 | #define WAC_CMD_RETRIES 10 |
17 | ||
e0984bc3 PC |
18 | #define DEV_ATTR_RW_PERM (S_IRUGO | S_IWUSR | S_IWGRP) |
19 | #define DEV_ATTR_WO_PERM (S_IWUSR | S_IWGRP) | |
72b236d6 | 20 | #define DEV_ATTR_RO_PERM (S_IRUSR | S_IRGRP) |
e0984bc3 | 21 | |
c64d8834 PC |
22 | static int wacom_get_report(struct hid_device *hdev, u8 type, u8 *buf, |
23 | size_t size, unsigned int retries) | |
3bea733a | 24 | { |
5d7e7d47 EH |
25 | int retval; |
26 | ||
27 | do { | |
c64d8834 | 28 | retval = hid_hw_raw_request(hdev, buf[0], buf, size, type, |
27b20a9d | 29 | HID_REQ_GET_REPORT); |
aef3156d JG |
30 | } while ((retval == -ETIMEDOUT || retval == -EAGAIN) && --retries); |
31 | ||
32 | if (retval < 0) | |
33 | hid_err(hdev, "wacom_get_report: ran out of retries " | |
34 | "(last error = %d)\n", retval); | |
5d7e7d47 EH |
35 | |
36 | return retval; | |
3bea733a PC |
37 | } |
38 | ||
296b7378 PF |
39 | static int wacom_set_report(struct hid_device *hdev, u8 type, u8 *buf, |
40 | size_t size, unsigned int retries) | |
3bea733a | 41 | { |
5d7e7d47 EH |
42 | int retval; |
43 | ||
44 | do { | |
296b7378 | 45 | retval = hid_hw_raw_request(hdev, buf[0], buf, size, type, |
27b20a9d | 46 | HID_REQ_SET_REPORT); |
aef3156d JG |
47 | } while ((retval == -ETIMEDOUT || retval == -EAGAIN) && --retries); |
48 | ||
49 | if (retval < 0) | |
50 | hid_err(hdev, "wacom_set_report: ran out of retries " | |
51 | "(last error = %d)\n", retval); | |
5d7e7d47 EH |
52 | |
53 | return retval; | |
3bea733a PC |
54 | } |
55 | ||
83417206 JG |
56 | static void wacom_wac_queue_insert(struct hid_device *hdev, |
57 | struct kfifo_rec_ptr_2 *fifo, | |
58 | u8 *raw_data, int size) | |
59 | { | |
60 | bool warned = false; | |
61 | ||
62 | while (kfifo_avail(fifo) < size) { | |
63 | if (!warned) | |
64 | hid_warn(hdev, "%s: kfifo has filled, starting to drop events\n", __func__); | |
65 | warned = true; | |
66 | ||
67 | kfifo_skip(fifo); | |
68 | } | |
69 | ||
70 | kfifo_in(fifo, raw_data, size); | |
71 | } | |
72 | ||
73 | static void wacom_wac_queue_flush(struct hid_device *hdev, | |
74 | struct kfifo_rec_ptr_2 *fifo) | |
75 | { | |
76 | while (!kfifo_is_empty(fifo)) { | |
77 | u8 buf[WACOM_PKGLEN_MAX]; | |
78 | int size; | |
79 | int err; | |
80 | ||
81 | size = kfifo_out(fifo, buf, sizeof(buf)); | |
82 | err = hid_report_raw_event(hdev, HID_INPUT_REPORT, buf, size, false); | |
83 | if (err) { | |
84 | hid_warn(hdev, "%s: unable to flush event due to error %d\n", | |
85 | __func__, err); | |
86 | } | |
87 | } | |
88 | } | |
89 | ||
90 | static int wacom_wac_pen_serial_enforce(struct hid_device *hdev, | |
073b50bc | 91 | struct hid_report *report, u8 *raw_data, int report_size) |
83417206 JG |
92 | { |
93 | struct wacom *wacom = hid_get_drvdata(hdev); | |
94 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
95 | struct wacom_features *features = &wacom_wac->features; | |
96 | bool flush = false; | |
97 | bool insert = false; | |
98 | int i, j; | |
99 | ||
100 | if (wacom_wac->serial[0] || !(features->quirks & WACOM_QUIRK_TOOLSERIAL)) | |
101 | return 0; | |
102 | ||
103 | /* Queue events which have invalid tool type or serial number */ | |
104 | for (i = 0; i < report->maxfield; i++) { | |
105 | for (j = 0; j < report->field[i]->maxusage; j++) { | |
106 | struct hid_field *field = report->field[i]; | |
107 | struct hid_usage *usage = &field->usage[j]; | |
108 | unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid); | |
109 | unsigned int offset; | |
110 | unsigned int size; | |
111 | unsigned int value; | |
112 | ||
113 | if (equivalent_usage != HID_DG_INRANGE && | |
114 | equivalent_usage != HID_DG_TOOLSERIALNUMBER && | |
115 | equivalent_usage != WACOM_HID_WD_SERIALHI && | |
116 | equivalent_usage != WACOM_HID_WD_TOOLTYPE) | |
117 | continue; | |
118 | ||
119 | offset = field->report_offset; | |
120 | size = field->report_size; | |
121 | value = hid_field_extract(hdev, raw_data+1, offset + j * size, size); | |
122 | ||
123 | /* If we go out of range, we need to flush the queue ASAP */ | |
124 | if (equivalent_usage == HID_DG_INRANGE) | |
125 | value = !value; | |
126 | ||
127 | if (value) { | |
128 | flush = true; | |
129 | switch (equivalent_usage) { | |
130 | case HID_DG_TOOLSERIALNUMBER: | |
131 | wacom_wac->serial[0] = value; | |
132 | break; | |
133 | ||
134 | case WACOM_HID_WD_SERIALHI: | |
135 | wacom_wac->serial[0] |= ((__u64)value) << 32; | |
136 | break; | |
137 | ||
138 | case WACOM_HID_WD_TOOLTYPE: | |
139 | wacom_wac->id[0] = value; | |
140 | break; | |
141 | } | |
142 | } | |
143 | else { | |
144 | insert = true; | |
145 | } | |
146 | } | |
147 | } | |
148 | ||
149 | if (flush) | |
150 | wacom_wac_queue_flush(hdev, &wacom_wac->pen_fifo); | |
151 | else if (insert) | |
073b50bc JG |
152 | wacom_wac_queue_insert(hdev, &wacom_wac->pen_fifo, |
153 | raw_data, report_size); | |
83417206 JG |
154 | |
155 | return insert && !flush; | |
156 | } | |
157 | ||
29b47391 BT |
158 | static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report, |
159 | u8 *raw_data, int size) | |
3bea733a | 160 | { |
29b47391 | 161 | struct wacom *wacom = hid_get_drvdata(hdev); |
3bea733a | 162 | |
29b47391 BT |
163 | if (size > WACOM_PKGLEN_MAX) |
164 | return 1; | |
3bea733a | 165 | |
83417206 JG |
166 | if (wacom_wac_pen_serial_enforce(hdev, report, raw_data, size)) |
167 | return -1; | |
168 | ||
29b47391 | 169 | memcpy(wacom->wacom_wac.data, raw_data, size); |
3bea733a | 170 | |
29b47391 BT |
171 | wacom_wac_irq(&wacom->wacom_wac, size); |
172 | ||
173 | return 0; | |
3bea733a PC |
174 | } |
175 | ||
3bea733a PC |
176 | static int wacom_open(struct input_dev *dev) |
177 | { | |
7791bdae | 178 | struct wacom *wacom = input_get_drvdata(dev); |
29b47391 | 179 | |
dff67416 | 180 | return hid_hw_open(wacom->hdev); |
3bea733a PC |
181 | } |
182 | ||
183 | static void wacom_close(struct input_dev *dev) | |
184 | { | |
7791bdae | 185 | struct wacom *wacom = input_get_drvdata(dev); |
3bea733a | 186 | |
3dad188e BT |
187 | /* |
188 | * wacom->hdev should never be null, but surprisingly, I had the case | |
189 | * once while unplugging the Wacom Wireless Receiver. | |
190 | */ | |
191 | if (wacom->hdev) | |
192 | hid_hw_close(wacom->hdev); | |
3bea733a PC |
193 | } |
194 | ||
115d5e12 | 195 | /* |
198fdee2 | 196 | * Calculate the resolution of the X or Y axis using hidinput_calc_abs_res. |
115d5e12 JG |
197 | */ |
198 | static int wacom_calc_hid_res(int logical_extents, int physical_extents, | |
c669fb2b | 199 | unsigned unit, int exponent) |
115d5e12 | 200 | { |
198fdee2 BT |
201 | struct hid_field field = { |
202 | .logical_maximum = logical_extents, | |
203 | .physical_maximum = physical_extents, | |
204 | .unit = unit, | |
205 | .unit_exponent = exponent, | |
206 | }; | |
207 | ||
208 | return hidinput_calc_abs_res(&field, ABS_X); | |
115d5e12 JG |
209 | } |
210 | ||
57832512 JG |
211 | static void wacom_hid_usage_quirk(struct hid_device *hdev, |
212 | struct hid_field *field, struct hid_usage *usage) | |
213 | { | |
214 | struct wacom *wacom = hid_get_drvdata(hdev); | |
215 | struct wacom_features *features = &wacom->wacom_wac.features; | |
216 | unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid); | |
217 | ||
218 | /* | |
219 | * The Dell Canvas 27 needs to be switched to its vendor-defined | |
220 | * report to provide the best resolution. | |
221 | */ | |
222 | if (hdev->vendor == USB_VENDOR_ID_WACOM && | |
223 | hdev->product == 0x4200 && | |
224 | field->application == HID_UP_MSVENDOR) { | |
225 | wacom->wacom_wac.mode_report = field->report->id; | |
226 | wacom->wacom_wac.mode_value = 2; | |
227 | } | |
228 | ||
229 | /* | |
230 | * ISDv4 devices which predate HID's adoption of the | |
231 | * HID_DG_BARELSWITCH2 usage use 0x000D0000 in its | |
232 | * position instead. We can accurately detect if a | |
233 | * usage with that value should be HID_DG_BARRELSWITCH2 | |
234 | * based on the surrounding usages, which have remained | |
235 | * constant across generations. | |
236 | */ | |
237 | if (features->type == HID_GENERIC && | |
238 | usage->hid == 0x000D0000 && | |
239 | field->application == HID_DG_PEN && | |
240 | field->physical == HID_DG_STYLUS) { | |
241 | int i = usage->usage_index; | |
242 | ||
243 | if (i-4 >= 0 && i+1 < field->maxusage && | |
244 | field->usage[i-4].hid == HID_DG_TIPSWITCH && | |
245 | field->usage[i-3].hid == HID_DG_BARRELSWITCH && | |
246 | field->usage[i-2].hid == HID_DG_ERASER && | |
247 | field->usage[i-1].hid == HID_DG_INVERT && | |
248 | field->usage[i+1].hid == HID_DG_INRANGE) { | |
249 | usage->hid = HID_DG_BARRELSWITCH2; | |
250 | } | |
251 | } | |
252 | ||
e9fe0d49 JG |
253 | /* |
254 | * Wacom's AES devices use different vendor-defined usages to | |
255 | * report serial number information compared to their branded | |
256 | * hardware. The usages are also sometimes ill-defined and do | |
257 | * not have the correct logical min/max values set. Lets patch | |
258 | * the descriptor to use the branded usage convention and fix | |
259 | * the errors. | |
260 | */ | |
261 | if (usage->hid == WACOM_HID_WT_SERIALNUMBER && | |
262 | field->report_size == 16 && | |
263 | field->index + 2 < field->report->maxfield) { | |
264 | struct hid_field *a = field->report->field[field->index + 1]; | |
265 | struct hid_field *b = field->report->field[field->index + 2]; | |
266 | ||
267 | if (a->maxusage > 0 && | |
268 | a->usage[0].hid == HID_DG_TOOLSERIALNUMBER && | |
269 | a->report_size == 32 && | |
270 | b->maxusage > 0 && | |
271 | b->usage[0].hid == 0xFF000000 && | |
272 | b->report_size == 8) { | |
273 | features->quirks |= WACOM_QUIRK_AESPEN; | |
274 | usage->hid = WACOM_HID_WD_TOOLTYPE; | |
275 | field->logical_minimum = S16_MIN; | |
276 | field->logical_maximum = S16_MAX; | |
277 | a->logical_minimum = S32_MIN; | |
278 | a->logical_maximum = S32_MAX; | |
279 | b->usage[0].hid = WACOM_HID_WD_SERIALHI; | |
280 | b->logical_minimum = 0; | |
281 | b->logical_maximum = U8_MAX; | |
282 | } | |
283 | } | |
284 | ||
57832512 JG |
285 | /* 2nd-generation Intuos Pro Large has incorrect Y maximum */ |
286 | if (hdev->vendor == USB_VENDOR_ID_WACOM && | |
287 | hdev->product == 0x0358 && | |
288 | WACOM_PEN_FIELD(field) && | |
289 | equivalent_usage == HID_GD_Y) { | |
290 | field->logical_maximum = 43200; | |
291 | } | |
292 | } | |
293 | ||
c669fb2b BT |
294 | static void wacom_feature_mapping(struct hid_device *hdev, |
295 | struct hid_field *field, struct hid_usage *usage) | |
f393ee2b | 296 | { |
c669fb2b BT |
297 | struct wacom *wacom = hid_get_drvdata(hdev); |
298 | struct wacom_features *features = &wacom->wacom_wac.features; | |
5ae6e89f | 299 | struct hid_data *hid_data = &wacom->wacom_wac.hid_data; |
ac2423c9 | 300 | unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid); |
8ffffd52 BT |
301 | u8 *data; |
302 | int ret; | |
3064a03b | 303 | u32 n; |
f393ee2b | 304 | |
57832512 JG |
305 | wacom_hid_usage_quirk(hdev, field, usage); |
306 | ||
ac2423c9 | 307 | switch (equivalent_usage) { |
d8e98060 AAS |
308 | case WACOM_HID_WD_TOUCH_RING_SETTING: |
309 | wacom->generic_has_leds = true; | |
310 | break; | |
c669fb2b BT |
311 | case HID_DG_CONTACTMAX: |
312 | /* leave touch_max as is if predefined */ | |
8ffffd52 BT |
313 | if (!features->touch_max) { |
314 | /* read manually */ | |
184eccd4 AAS |
315 | n = hid_report_len(field->report); |
316 | data = hid_alloc_report_buf(field->report, GFP_KERNEL); | |
8ffffd52 BT |
317 | if (!data) |
318 | break; | |
319 | data[0] = field->report->id; | |
320 | ret = wacom_get_report(hdev, HID_FEATURE_REPORT, | |
184eccd4 AAS |
321 | data, n, WAC_CMD_RETRIES); |
322 | if (ret == n) { | |
323 | ret = hid_report_raw_event(hdev, | |
324 | HID_FEATURE_REPORT, data, n, 0); | |
05e8fd92 JG |
325 | } else { |
326 | features->touch_max = 16; | |
327 | hid_warn(hdev, "wacom_feature_mapping: " | |
328 | "could not get HID_DG_CONTACTMAX, " | |
329 | "defaulting to %d\n", | |
330 | features->touch_max); | |
331 | } | |
8ffffd52 BT |
332 | kfree(data); |
333 | } | |
c669fb2b | 334 | break; |
5ae6e89f BT |
335 | case HID_DG_INPUTMODE: |
336 | /* Ignore if value index is out of bounds. */ | |
337 | if (usage->usage_index >= field->report_count) { | |
338 | dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); | |
339 | break; | |
340 | } | |
341 | ||
342 | hid_data->inputmode = field->report->id; | |
343 | hid_data->inputmode_index = usage->usage_index; | |
344 | break; | |
326ea2a9 JG |
345 | |
346 | case HID_UP_DIGITIZER: | |
347 | if (field->report->id == 0x0B && | |
8de82280 JG |
348 | (field->application == WACOM_HID_G9_PEN || |
349 | field->application == WACOM_HID_G11_PEN)) { | |
326ea2a9 JG |
350 | wacom->wacom_wac.mode_report = field->report->id; |
351 | wacom->wacom_wac.mode_value = 0; | |
352 | } | |
353 | break; | |
354 | ||
c9c09587 JG |
355 | case WACOM_HID_WD_DATAMODE: |
356 | wacom->wacom_wac.mode_report = field->report->id; | |
357 | wacom->wacom_wac.mode_value = 2; | |
358 | break; | |
359 | ||
8de82280 JG |
360 | case WACOM_HID_UP_G9: |
361 | case WACOM_HID_UP_G11: | |
326ea2a9 | 362 | if (field->report->id == 0x03 && |
8de82280 JG |
363 | (field->application == WACOM_HID_G9_TOUCHSCREEN || |
364 | field->application == WACOM_HID_G11_TOUCHSCREEN)) { | |
326ea2a9 JG |
365 | wacom->wacom_wac.mode_report = field->report->id; |
366 | wacom->wacom_wac.mode_value = 0; | |
367 | } | |
368 | break; | |
345857bb JG |
369 | case WACOM_HID_WD_OFFSETLEFT: |
370 | case WACOM_HID_WD_OFFSETTOP: | |
371 | case WACOM_HID_WD_OFFSETRIGHT: | |
372 | case WACOM_HID_WD_OFFSETBOTTOM: | |
373 | /* read manually */ | |
374 | n = hid_report_len(field->report); | |
375 | data = hid_alloc_report_buf(field->report, GFP_KERNEL); | |
376 | if (!data) | |
377 | break; | |
378 | data[0] = field->report->id; | |
379 | ret = wacom_get_report(hdev, HID_FEATURE_REPORT, | |
380 | data, n, WAC_CMD_RETRIES); | |
381 | if (ret == n) { | |
382 | ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, | |
383 | data, n, 0); | |
384 | } else { | |
385 | hid_warn(hdev, "%s: could not retrieve sensor offsets\n", | |
386 | __func__); | |
387 | } | |
388 | kfree(data); | |
389 | break; | |
f393ee2b PC |
390 | } |
391 | } | |
392 | ||
428f8588 CB |
393 | /* |
394 | * Interface Descriptor of wacom devices can be incomplete and | |
395 | * inconsistent so wacom_features table is used to store stylus | |
396 | * device's packet lengths, various maximum values, and tablet | |
397 | * resolution based on product ID's. | |
398 | * | |
399 | * For devices that contain 2 interfaces, wacom_features table is | |
400 | * inaccurate for the touch interface. Since the Interface Descriptor | |
401 | * for touch interfaces has pretty complete data, this function exists | |
402 | * to query tablet for this missing information instead of hard coding in | |
403 | * an additional table. | |
404 | * | |
405 | * A typical Interface Descriptor for a stylus will contain a | |
406 | * boot mouse application collection that is not of interest and this | |
407 | * function will ignore it. | |
408 | * | |
409 | * It also contains a digitizer application collection that also is not | |
410 | * of interest since any information it contains would be duplicate | |
411 | * of what is in wacom_features. Usually it defines a report of an array | |
412 | * of bytes that could be used as max length of the stylus packet returned. | |
413 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
414 | * the X and Y logical values contain valid data but it is ignored. | |
415 | * | |
416 | * A typical Interface Descriptor for a touch interface will contain a | |
417 | * Digitizer-Finger Physical Collection which will define both logical | |
418 | * X/Y maximum as well as the physical size of tablet. Since touch | |
419 | * interfaces haven't supported pressure or distance, this is enough | |
420 | * information to override invalid values in the wacom_features table. | |
4134361a | 421 | * |
c669fb2b BT |
422 | * Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful |
423 | * data. We deal with them after returning from this function. | |
428f8588 | 424 | */ |
c669fb2b BT |
425 | static void wacom_usage_mapping(struct hid_device *hdev, |
426 | struct hid_field *field, struct hid_usage *usage) | |
545f4e99 | 427 | { |
c669fb2b BT |
428 | struct wacom *wacom = hid_get_drvdata(hdev); |
429 | struct wacom_features *features = &wacom->wacom_wac.features; | |
d97a5522 BT |
430 | bool finger = WACOM_FINGER_FIELD(field); |
431 | bool pen = WACOM_PEN_FIELD(field); | |
418b573b | 432 | unsigned equivalent_usage = wacom_equivalent_usage(usage->hid); |
e9fc413f | 433 | |
c669fb2b BT |
434 | /* |
435 | * Requiring Stylus Usage will ignore boot mouse | |
436 | * X/Y values and some cases of invalid Digitizer X/Y | |
437 | * values commonly reported. | |
438 | */ | |
042628ab | 439 | if (pen) |
aa86b18c | 440 | features->device_type |= WACOM_DEVICETYPE_PEN; |
042628ab | 441 | else if (finger) |
aa86b18c | 442 | features->device_type |= WACOM_DEVICETYPE_TOUCH; |
042628ab | 443 | else |
c669fb2b BT |
444 | return; |
445 | ||
57832512 | 446 | wacom_hid_usage_quirk(hdev, field, usage); |
d471b6b2 | 447 | |
418b573b | 448 | switch (equivalent_usage) { |
c669fb2b BT |
449 | case HID_GD_X: |
450 | features->x_max = field->logical_maximum; | |
451 | if (finger) { | |
c669fb2b | 452 | features->x_phy = field->physical_maximum; |
3b164a00 PC |
453 | if ((features->type != BAMBOO_PT) && |
454 | (features->type != BAMBOO_TOUCH)) { | |
c669fb2b BT |
455 | features->unit = field->unit; |
456 | features->unitExpo = field->unit_exponent; | |
545f4e99 | 457 | } |
c669fb2b BT |
458 | } |
459 | break; | |
460 | case HID_GD_Y: | |
461 | features->y_max = field->logical_maximum; | |
462 | if (finger) { | |
463 | features->y_phy = field->physical_maximum; | |
3b164a00 PC |
464 | if ((features->type != BAMBOO_PT) && |
465 | (features->type != BAMBOO_TOUCH)) { | |
c669fb2b BT |
466 | features->unit = field->unit; |
467 | features->unitExpo = field->unit_exponent; | |
468 | } | |
469 | } | |
470 | break; | |
471 | case HID_DG_TIPPRESSURE: | |
472 | if (pen) | |
473 | features->pressure_max = field->logical_maximum; | |
474 | break; | |
475 | } | |
7704ac93 BT |
476 | |
477 | if (features->type == HID_GENERIC) | |
478 | wacom_wac_usage_mapping(hdev, field, usage); | |
c669fb2b | 479 | } |
4134361a | 480 | |
b58ba1ba JG |
481 | static void wacom_post_parse_hid(struct hid_device *hdev, |
482 | struct wacom_features *features) | |
483 | { | |
484 | struct wacom *wacom = hid_get_drvdata(hdev); | |
485 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
486 | ||
487 | if (features->type == HID_GENERIC) { | |
488 | /* Any last-minute generic device setup */ | |
4082da80 BT |
489 | if (wacom_wac->has_mode_change) { |
490 | if (wacom_wac->is_direct_mode) | |
491 | features->device_type |= WACOM_DEVICETYPE_DIRECT; | |
492 | else | |
493 | features->device_type &= ~WACOM_DEVICETYPE_DIRECT; | |
494 | } | |
495 | ||
b58ba1ba | 496 | if (features->touch_max > 1) { |
ac2423c9 AAS |
497 | if (features->device_type & WACOM_DEVICETYPE_DIRECT) |
498 | input_mt_init_slots(wacom_wac->touch_input, | |
499 | wacom_wac->features.touch_max, | |
500 | INPUT_MT_DIRECT); | |
501 | else | |
502 | input_mt_init_slots(wacom_wac->touch_input, | |
503 | wacom_wac->features.touch_max, | |
504 | INPUT_MT_POINTER); | |
b58ba1ba JG |
505 | } |
506 | } | |
507 | } | |
508 | ||
c669fb2b BT |
509 | static void wacom_parse_hid(struct hid_device *hdev, |
510 | struct wacom_features *features) | |
511 | { | |
512 | struct hid_report_enum *rep_enum; | |
513 | struct hid_report *hreport; | |
514 | int i, j; | |
515 | ||
516 | /* check features first */ | |
517 | rep_enum = &hdev->report_enum[HID_FEATURE_REPORT]; | |
518 | list_for_each_entry(hreport, &rep_enum->report_list, list) { | |
519 | for (i = 0; i < hreport->maxfield; i++) { | |
520 | /* Ignore if report count is out of bounds. */ | |
521 | if (hreport->field[i]->report_count < 1) | |
522 | continue; | |
523 | ||
524 | for (j = 0; j < hreport->field[i]->maxusage; j++) { | |
525 | wacom_feature_mapping(hdev, hreport->field[i], | |
526 | hreport->field[i]->usage + j); | |
4134361a | 527 | } |
545f4e99 PC |
528 | } |
529 | } | |
530 | ||
c669fb2b BT |
531 | /* now check the input usages */ |
532 | rep_enum = &hdev->report_enum[HID_INPUT_REPORT]; | |
533 | list_for_each_entry(hreport, &rep_enum->report_list, list) { | |
534 | ||
535 | if (!hreport->maxfield) | |
536 | continue; | |
537 | ||
538 | for (i = 0; i < hreport->maxfield; i++) | |
539 | for (j = 0; j < hreport->field[i]->maxusage; j++) | |
540 | wacom_usage_mapping(hdev, hreport->field[i], | |
541 | hreport->field[i]->usage + j); | |
542 | } | |
b58ba1ba JG |
543 | |
544 | wacom_post_parse_hid(hdev, features); | |
545f4e99 PC |
545 | } |
546 | ||
5ae6e89f BT |
547 | static int wacom_hid_set_device_mode(struct hid_device *hdev) |
548 | { | |
549 | struct wacom *wacom = hid_get_drvdata(hdev); | |
550 | struct hid_data *hid_data = &wacom->wacom_wac.hid_data; | |
551 | struct hid_report *r; | |
552 | struct hid_report_enum *re; | |
553 | ||
554 | if (hid_data->inputmode < 0) | |
555 | return 0; | |
556 | ||
557 | re = &(hdev->report_enum[HID_FEATURE_REPORT]); | |
558 | r = re->report_id_hash[hid_data->inputmode]; | |
559 | if (r) { | |
560 | r->field[0]->value[hid_data->inputmode_index] = 2; | |
561 | hid_hw_request(hdev, r, HID_REQ_SET_REPORT); | |
562 | } | |
563 | return 0; | |
564 | } | |
565 | ||
326ea2a9 JG |
566 | static int wacom_set_device_mode(struct hid_device *hdev, |
567 | struct wacom_wac *wacom_wac) | |
3b7307c2 | 568 | { |
326ea2a9 JG |
569 | u8 *rep_data; |
570 | struct hid_report *r; | |
571 | struct hid_report_enum *re; | |
3064a03b | 572 | u32 length; |
fe494bc2 | 573 | int error = -ENOMEM, limit = 0; |
3b7307c2 | 574 | |
326ea2a9 JG |
575 | if (wacom_wac->mode_report < 0) |
576 | return 0; | |
577 | ||
578 | re = &(hdev->report_enum[HID_FEATURE_REPORT]); | |
579 | r = re->report_id_hash[wacom_wac->mode_report]; | |
580 | if (!r) | |
581 | return -EINVAL; | |
582 | ||
583 | rep_data = hid_alloc_report_buf(r, GFP_KERNEL); | |
3b7307c2 | 584 | if (!rep_data) |
326ea2a9 JG |
585 | return -ENOMEM; |
586 | ||
587 | length = hid_report_len(r); | |
ec67bbed | 588 | |
fe494bc2 | 589 | do { |
326ea2a9 JG |
590 | rep_data[0] = wacom_wac->mode_report; |
591 | rep_data[1] = wacom_wac->mode_value; | |
9937c026 | 592 | |
296b7378 PF |
593 | error = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, |
594 | length, 1); | |
3cb83157 | 595 | if (error >= 0) |
27b20a9d | 596 | error = wacom_get_report(hdev, HID_FEATURE_REPORT, |
c64d8834 | 597 | rep_data, length, 1); |
326ea2a9 JG |
598 | } while (error >= 0 && |
599 | rep_data[1] != wacom_wac->mode_report && | |
600 | limit++ < WAC_MSG_RETRIES); | |
fe494bc2 JG |
601 | |
602 | kfree(rep_data); | |
603 | ||
604 | return error < 0 ? error : 0; | |
605 | } | |
606 | ||
f81a1295 BT |
607 | static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed, |
608 | struct wacom_features *features) | |
609 | { | |
387142bb BT |
610 | struct wacom *wacom = hid_get_drvdata(hdev); |
611 | int ret; | |
612 | u8 rep_data[2]; | |
613 | ||
614 | switch (features->type) { | |
615 | case GRAPHIRE_BT: | |
616 | rep_data[0] = 0x03; | |
617 | rep_data[1] = 0x00; | |
296b7378 PF |
618 | ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2, |
619 | 3); | |
387142bb BT |
620 | |
621 | if (ret >= 0) { | |
622 | rep_data[0] = speed == 0 ? 0x05 : 0x06; | |
623 | rep_data[1] = 0x00; | |
624 | ||
625 | ret = wacom_set_report(hdev, HID_FEATURE_REPORT, | |
296b7378 | 626 | rep_data, 2, 3); |
387142bb BT |
627 | |
628 | if (ret >= 0) { | |
629 | wacom->wacom_wac.bt_high_speed = speed; | |
630 | return 0; | |
631 | } | |
632 | } | |
633 | ||
634 | /* | |
635 | * Note that if the raw queries fail, it's not a hard failure | |
636 | * and it is safe to continue | |
637 | */ | |
638 | hid_warn(hdev, "failed to poke device, command %d, err %d\n", | |
639 | rep_data[0], ret); | |
640 | break; | |
81af7e61 BT |
641 | case INTUOS4WL: |
642 | if (speed == 1) | |
643 | wacom->wacom_wac.bt_features &= ~0x20; | |
644 | else | |
645 | wacom->wacom_wac.bt_features |= 0x20; | |
646 | ||
647 | rep_data[0] = 0x03; | |
648 | rep_data[1] = wacom->wacom_wac.bt_features; | |
649 | ||
296b7378 PF |
650 | ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2, |
651 | 1); | |
81af7e61 BT |
652 | if (ret >= 0) |
653 | wacom->wacom_wac.bt_high_speed = speed; | |
654 | break; | |
387142bb BT |
655 | } |
656 | ||
f81a1295 BT |
657 | return 0; |
658 | } | |
659 | ||
fe494bc2 JG |
660 | /* |
661 | * Switch the tablet into its most-capable mode. Wacom tablets are | |
662 | * typically configured to power-up in a mode which sends mouse-like | |
663 | * reports to the OS. To get absolute position, pressure data, etc. | |
664 | * from the tablet, it is necessary to switch the tablet out of this | |
665 | * mode and into one which sends the full range of tablet data. | |
666 | */ | |
a544c619 | 667 | static int _wacom_query_tablet_data(struct wacom *wacom) |
fe494bc2 | 668 | { |
a544c619 | 669 | struct hid_device *hdev = wacom->hdev; |
326ea2a9 | 670 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; |
a544c619 | 671 | struct wacom_features *features = &wacom_wac->features; |
326ea2a9 | 672 | |
f81a1295 BT |
673 | if (hdev->bus == BUS_BLUETOOTH) |
674 | return wacom_bt_query_tablet_data(hdev, 1, features); | |
675 | ||
326ea2a9 JG |
676 | if (features->type != HID_GENERIC) { |
677 | if (features->device_type & WACOM_DEVICETYPE_TOUCH) { | |
678 | if (features->type > TABLETPC) { | |
679 | /* MT Tablet PC touch */ | |
680 | wacom_wac->mode_report = 3; | |
681 | wacom_wac->mode_value = 4; | |
682 | } else if (features->type == WACOM_24HDT) { | |
683 | wacom_wac->mode_report = 18; | |
684 | wacom_wac->mode_value = 2; | |
685 | } else if (features->type == WACOM_27QHDT) { | |
686 | wacom_wac->mode_report = 131; | |
687 | wacom_wac->mode_value = 2; | |
688 | } else if (features->type == BAMBOO_PAD) { | |
689 | wacom_wac->mode_report = 2; | |
690 | wacom_wac->mode_value = 2; | |
691 | } | |
692 | } else if (features->device_type & WACOM_DEVICETYPE_PEN) { | |
693 | if (features->type <= BAMBOO_PT) { | |
694 | wacom_wac->mode_report = 2; | |
695 | wacom_wac->mode_value = 2; | |
696 | } | |
1963518b | 697 | } |
ec67bbed | 698 | } |
3b7307c2 | 699 | |
326ea2a9 JG |
700 | wacom_set_device_mode(hdev, wacom_wac); |
701 | ||
702 | if (features->type == HID_GENERIC) | |
703 | return wacom_hid_set_device_mode(hdev); | |
704 | ||
fe494bc2 | 705 | return 0; |
3b7307c2 DT |
706 | } |
707 | ||
c669fb2b | 708 | static void wacom_retrieve_hid_descriptor(struct hid_device *hdev, |
1963518b | 709 | struct wacom_features *features) |
ec67bbed | 710 | { |
27b20a9d BT |
711 | struct wacom *wacom = hid_get_drvdata(hdev); |
712 | struct usb_interface *intf = wacom->intf; | |
ec67bbed | 713 | |
fed87e65 | 714 | /* default features */ |
fed87e65 HR |
715 | features->x_fuzz = 4; |
716 | features->y_fuzz = 4; | |
717 | features->pressure_fuzz = 0; | |
bef7e200 JG |
718 | features->distance_fuzz = 1; |
719 | features->tilt_fuzz = 1; | |
ec67bbed | 720 | |
d3825d51 CB |
721 | /* |
722 | * The wireless device HID is basic and layout conflicts with | |
723 | * other tablets (monitor and touch interface can look like pen). | |
724 | * Skip the query for this type and modify defaults based on | |
725 | * interface number. | |
726 | */ | |
727 | if (features->type == WIRELESS) { | |
3f14a63a | 728 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) |
ccad85cc | 729 | features->device_type = WACOM_DEVICETYPE_WL_MONITOR; |
3f14a63a | 730 | else |
aa86b18c | 731 | features->device_type = WACOM_DEVICETYPE_NONE; |
3f14a63a | 732 | return; |
d3825d51 CB |
733 | } |
734 | ||
c669fb2b | 735 | wacom_parse_hid(hdev, features); |
ec67bbed PC |
736 | } |
737 | ||
4451e088 | 738 | struct wacom_hdev_data { |
4492efff PC |
739 | struct list_head list; |
740 | struct kref kref; | |
4451e088 | 741 | struct hid_device *dev; |
4492efff PC |
742 | struct wacom_shared shared; |
743 | }; | |
744 | ||
745 | static LIST_HEAD(wacom_udev_list); | |
746 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
747 | ||
4451e088 BT |
748 | static bool wacom_are_sibling(struct hid_device *hdev, |
749 | struct hid_device *sibling) | |
aea2bf6a | 750 | { |
4451e088 BT |
751 | struct wacom *wacom = hid_get_drvdata(hdev); |
752 | struct wacom_features *features = &wacom->wacom_wac.features; | |
41372d5d JG |
753 | struct wacom *sibling_wacom = hid_get_drvdata(sibling); |
754 | struct wacom_features *sibling_features = &sibling_wacom->wacom_wac.features; | |
755 | __u32 oVid = features->oVid ? features->oVid : hdev->vendor; | |
756 | __u32 oPid = features->oPid ? features->oPid : hdev->product; | |
4451e088 | 757 | |
41372d5d JG |
758 | /* The defined oVid/oPid must match that of the sibling */ |
759 | if (features->oVid != HID_ANY_ID && sibling->vendor != oVid) | |
760 | return false; | |
761 | if (features->oPid != HID_ANY_ID && sibling->product != oPid) | |
762 | return false; | |
763 | ||
764 | /* | |
765 | * Devices with the same VID/PID must share the same physical | |
766 | * device path, while those with different VID/PID must share | |
767 | * the same physical parent device path. | |
768 | */ | |
769 | if (hdev->vendor == sibling->vendor && hdev->product == sibling->product) { | |
1a8861f1 | 770 | if (!hid_compare_device_paths(hdev, sibling, '/')) |
41372d5d JG |
771 | return false; |
772 | } else { | |
1a8861f1 | 773 | if (!hid_compare_device_paths(hdev, sibling, '.')) |
41372d5d | 774 | return false; |
4451e088 | 775 | } |
aea2bf6a | 776 | |
41372d5d JG |
777 | /* Skip the remaining heuristics unless you are a HID_GENERIC device */ |
778 | if (features->type != HID_GENERIC) | |
779 | return true; | |
780 | ||
781 | /* | |
782 | * Direct-input devices may not be siblings of indirect-input | |
783 | * devices. | |
784 | */ | |
785 | if ((features->device_type & WACOM_DEVICETYPE_DIRECT) && | |
786 | !(sibling_features->device_type & WACOM_DEVICETYPE_DIRECT)) | |
4451e088 | 787 | return false; |
aea2bf6a | 788 | |
41372d5d JG |
789 | /* |
790 | * Indirect-input devices may not be siblings of direct-input | |
791 | * devices. | |
792 | */ | |
793 | if (!(features->device_type & WACOM_DEVICETYPE_DIRECT) && | |
794 | (sibling_features->device_type & WACOM_DEVICETYPE_DIRECT)) | |
4451e088 | 795 | return false; |
aea2bf6a | 796 | |
41372d5d JG |
797 | /* Pen devices may only be siblings of touch devices */ |
798 | if ((features->device_type & WACOM_DEVICETYPE_PEN) && | |
799 | !(sibling_features->device_type & WACOM_DEVICETYPE_TOUCH)) | |
800 | return false; | |
801 | ||
802 | /* Touch devices may only be siblings of pen devices */ | |
803 | if ((features->device_type & WACOM_DEVICETYPE_TOUCH) && | |
804 | !(sibling_features->device_type & WACOM_DEVICETYPE_PEN)) | |
805 | return false; | |
806 | ||
807 | /* | |
808 | * No reason could be found for these two devices to NOT be | |
809 | * siblings, so there's a good chance they ARE siblings | |
810 | */ | |
811 | return true; | |
aea2bf6a JG |
812 | } |
813 | ||
4451e088 | 814 | static struct wacom_hdev_data *wacom_get_hdev_data(struct hid_device *hdev) |
4492efff | 815 | { |
4451e088 | 816 | struct wacom_hdev_data *data; |
4492efff | 817 | |
41372d5d JG |
818 | /* Try to find an already-probed interface from the same device */ |
819 | list_for_each_entry(data, &wacom_udev_list, list) { | |
1a8861f1 | 820 | if (hid_compare_device_paths(hdev, data->dev, '/')) { |
2a5e597c | 821 | kref_get(&data->kref); |
41372d5d | 822 | return data; |
2a5e597c | 823 | } |
41372d5d JG |
824 | } |
825 | ||
826 | /* Fallback to finding devices that appear to be "siblings" */ | |
4492efff | 827 | list_for_each_entry(data, &wacom_udev_list, list) { |
4451e088 | 828 | if (wacom_are_sibling(hdev, data->dev)) { |
4492efff PC |
829 | kref_get(&data->kref); |
830 | return data; | |
831 | } | |
832 | } | |
833 | ||
834 | return NULL; | |
835 | } | |
836 | ||
1c817c83 BT |
837 | static void wacom_release_shared_data(struct kref *kref) |
838 | { | |
839 | struct wacom_hdev_data *data = | |
840 | container_of(kref, struct wacom_hdev_data, kref); | |
841 | ||
842 | mutex_lock(&wacom_udev_list_lock); | |
843 | list_del(&data->list); | |
844 | mutex_unlock(&wacom_udev_list_lock); | |
845 | ||
846 | kfree(data); | |
847 | } | |
848 | ||
849 | static void wacom_remove_shared_data(void *res) | |
850 | { | |
851 | struct wacom *wacom = res; | |
852 | struct wacom_hdev_data *data; | |
853 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
854 | ||
855 | if (wacom_wac->shared) { | |
856 | data = container_of(wacom_wac->shared, struct wacom_hdev_data, | |
857 | shared); | |
858 | ||
859 | if (wacom_wac->shared->touch == wacom->hdev) | |
860 | wacom_wac->shared->touch = NULL; | |
861 | else if (wacom_wac->shared->pen == wacom->hdev) | |
862 | wacom_wac->shared->pen = NULL; | |
863 | ||
864 | kref_put(&data->kref, wacom_release_shared_data); | |
865 | wacom_wac->shared = NULL; | |
866 | } | |
867 | } | |
868 | ||
4451e088 | 869 | static int wacom_add_shared_data(struct hid_device *hdev) |
4492efff | 870 | { |
4451e088 BT |
871 | struct wacom *wacom = hid_get_drvdata(hdev); |
872 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
873 | struct wacom_hdev_data *data; | |
4492efff PC |
874 | int retval = 0; |
875 | ||
876 | mutex_lock(&wacom_udev_list_lock); | |
877 | ||
4451e088 | 878 | data = wacom_get_hdev_data(hdev); |
4492efff | 879 | if (!data) { |
4451e088 | 880 | data = kzalloc(sizeof(struct wacom_hdev_data), GFP_KERNEL); |
4492efff PC |
881 | if (!data) { |
882 | retval = -ENOMEM; | |
883 | goto out; | |
884 | } | |
885 | ||
886 | kref_init(&data->kref); | |
4451e088 | 887 | data->dev = hdev; |
4492efff PC |
888 | list_add_tail(&data->list, &wacom_udev_list); |
889 | } | |
890 | ||
4451e088 | 891 | wacom_wac->shared = &data->shared; |
4492efff | 892 | |
1c817c83 BT |
893 | retval = devm_add_action(&hdev->dev, wacom_remove_shared_data, wacom); |
894 | if (retval) { | |
895 | mutex_unlock(&wacom_udev_list_lock); | |
896 | wacom_remove_shared_data(wacom); | |
897 | return retval; | |
898 | } | |
899 | ||
a9ce7856 JG |
900 | if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH) |
901 | wacom_wac->shared->touch = hdev; | |
902 | else if (wacom_wac->features.device_type & WACOM_DEVICETYPE_PEN) | |
903 | wacom_wac->shared->pen = hdev; | |
904 | ||
4492efff PC |
905 | out: |
906 | mutex_unlock(&wacom_udev_list_lock); | |
907 | return retval; | |
908 | } | |
909 | ||
5d7e7d47 EH |
910 | static int wacom_led_control(struct wacom *wacom) |
911 | { | |
912 | unsigned char *buf; | |
9b5b95dd | 913 | int retval; |
912ca216 PC |
914 | unsigned char report_id = WAC_CMD_LED_CONTROL; |
915 | int buf_size = 9; | |
5d7e7d47 | 916 | |
a50aac71 BT |
917 | if (!wacom->led.groups) |
918 | return -ENOTSUPP; | |
919 | ||
74aebed6 AAS |
920 | if (wacom->wacom_wac.features.type == REMOTE) |
921 | return -ENOTSUPP; | |
922 | ||
912ca216 PC |
923 | if (wacom->wacom_wac.pid) { /* wireless connected */ |
924 | report_id = WAC_CMD_WL_LED_CONTROL; | |
925 | buf_size = 13; | |
926 | } | |
4922cd26 JG |
927 | else if (wacom->wacom_wac.features.type == INTUOSP2_BT) { |
928 | report_id = WAC_CMD_WL_INTUOSP2; | |
929 | buf_size = 51; | |
930 | } | |
912ca216 | 931 | buf = kzalloc(buf_size, GFP_KERNEL); |
5d7e7d47 EH |
932 | if (!buf) |
933 | return -ENOMEM; | |
934 | ||
10c55cac AAS |
935 | if (wacom->wacom_wac.features.type == HID_GENERIC) { |
936 | buf[0] = WAC_CMD_LED_CONTROL_GENERIC; | |
937 | buf[1] = wacom->led.llv; | |
938 | buf[2] = wacom->led.groups[0].select & 0x03; | |
939 | ||
940 | } else if ((wacom->wacom_wac.features.type >= INTUOS5S && | |
941 | wacom->wacom_wac.features.type <= INTUOSPL)) { | |
9b5b95dd JG |
942 | /* |
943 | * Touch Ring and crop mark LED luminance may take on | |
944 | * one of four values: | |
945 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
946 | */ | |
a50aac71 | 947 | int ring_led = wacom->led.groups[0].select & 0x03; |
9b5b95dd JG |
948 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; |
949 | int crop_lum = 0; | |
912ca216 PC |
950 | unsigned char led_bits = (crop_lum << 4) | (ring_lum << 2) | (ring_led); |
951 | ||
952 | buf[0] = report_id; | |
953 | if (wacom->wacom_wac.pid) { | |
954 | wacom_get_report(wacom->hdev, HID_FEATURE_REPORT, | |
955 | buf, buf_size, WAC_CMD_RETRIES); | |
956 | buf[0] = report_id; | |
957 | buf[4] = led_bits; | |
958 | } else | |
959 | buf[1] = led_bits; | |
9b5b95dd | 960 | } |
4922cd26 JG |
961 | else if (wacom->wacom_wac.features.type == INTUOSP2_BT) { |
962 | buf[0] = report_id; | |
963 | buf[4] = 100; // Power Connection LED (ORANGE) | |
964 | buf[5] = 100; // BT Connection LED (BLUE) | |
965 | buf[6] = 100; // Paper Mode (RED?) | |
966 | buf[7] = 100; // Paper Mode (GREEN?) | |
967 | buf[8] = 100; // Paper Mode (BLUE?) | |
968 | buf[9] = wacom->led.llv; | |
969 | buf[10] = wacom->led.groups[0].select & 0x03; | |
970 | } | |
9b5b95dd | 971 | else { |
a50aac71 | 972 | int led = wacom->led.groups[0].select | 0x4; |
9b5b95dd JG |
973 | |
974 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
975 | wacom->wacom_wac.features.type == WACOM_24HD) | |
a50aac71 | 976 | led |= (wacom->led.groups[1].select << 4) | 0x40; |
9b5b95dd | 977 | |
912ca216 | 978 | buf[0] = report_id; |
9b5b95dd JG |
979 | buf[1] = led; |
980 | buf[2] = wacom->led.llv; | |
981 | buf[3] = wacom->led.hlv; | |
982 | buf[4] = wacom->led.img_lum; | |
983 | } | |
5d7e7d47 | 984 | |
912ca216 | 985 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, buf_size, |
296b7378 | 986 | WAC_CMD_RETRIES); |
5d7e7d47 EH |
987 | kfree(buf); |
988 | ||
989 | return retval; | |
990 | } | |
991 | ||
849e2f06 BT |
992 | static int wacom_led_putimage(struct wacom *wacom, int button_id, u8 xfer_id, |
993 | const unsigned len, const void *img) | |
5d7e7d47 EH |
994 | { |
995 | unsigned char *buf; | |
996 | int i, retval; | |
849e2f06 | 997 | const unsigned chunk_len = len / 4; /* 4 chunks are needed to be sent */ |
5d7e7d47 | 998 | |
849e2f06 | 999 | buf = kzalloc(chunk_len + 3 , GFP_KERNEL); |
5d7e7d47 EH |
1000 | if (!buf) |
1001 | return -ENOMEM; | |
1002 | ||
1003 | /* Send 'start' command */ | |
1004 | buf[0] = WAC_CMD_ICON_START; | |
1005 | buf[1] = 1; | |
296b7378 PF |
1006 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2, |
1007 | WAC_CMD_RETRIES); | |
5d7e7d47 EH |
1008 | if (retval < 0) |
1009 | goto out; | |
1010 | ||
849e2f06 | 1011 | buf[0] = xfer_id; |
5d7e7d47 EH |
1012 | buf[1] = button_id & 0x07; |
1013 | for (i = 0; i < 4; i++) { | |
1014 | buf[2] = i; | |
849e2f06 | 1015 | memcpy(buf + 3, img + i * chunk_len, chunk_len); |
5d7e7d47 | 1016 | |
27b20a9d | 1017 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, |
296b7378 | 1018 | buf, chunk_len + 3, WAC_CMD_RETRIES); |
5d7e7d47 EH |
1019 | if (retval < 0) |
1020 | break; | |
1021 | } | |
1022 | ||
1023 | /* Send 'stop' */ | |
1024 | buf[0] = WAC_CMD_ICON_START; | |
1025 | buf[1] = 0; | |
296b7378 PF |
1026 | wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2, |
1027 | WAC_CMD_RETRIES); | |
5d7e7d47 EH |
1028 | |
1029 | out: | |
1030 | kfree(buf); | |
1031 | return retval; | |
1032 | } | |
1033 | ||
09e7d941 | 1034 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
1035 | const char *buf, size_t count) |
1036 | { | |
ee79a8f8 | 1037 | struct hid_device *hdev = to_hid_device(dev); |
29b47391 | 1038 | struct wacom *wacom = hid_get_drvdata(hdev); |
5d7e7d47 EH |
1039 | unsigned int id; |
1040 | int err; | |
1041 | ||
1042 | err = kstrtouint(buf, 10, &id); | |
1043 | if (err) | |
1044 | return err; | |
1045 | ||
1046 | mutex_lock(&wacom->lock); | |
1047 | ||
a50aac71 | 1048 | wacom->led.groups[set_id].select = id & 0x3; |
5d7e7d47 EH |
1049 | err = wacom_led_control(wacom); |
1050 | ||
1051 | mutex_unlock(&wacom->lock); | |
1052 | ||
1053 | return err < 0 ? err : count; | |
1054 | } | |
1055 | ||
09e7d941 PC |
1056 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
1057 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
1058 | struct device_attribute *attr, const char *buf, size_t count) \ | |
1059 | { \ | |
1060 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
1061 | } \ | |
04c59abd PC |
1062 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
1063 | struct device_attribute *attr, char *buf) \ | |
1064 | { \ | |
ee79a8f8 | 1065 | struct hid_device *hdev = to_hid_device(dev);\ |
29b47391 | 1066 | struct wacom *wacom = hid_get_drvdata(hdev); \ |
37449adc | 1067 | return scnprintf(buf, PAGE_SIZE, "%d\n", \ |
a50aac71 | 1068 | wacom->led.groups[SET_ID].select); \ |
04c59abd | 1069 | } \ |
e0984bc3 | 1070 | static DEVICE_ATTR(status_led##SET_ID##_select, DEV_ATTR_RW_PERM, \ |
04c59abd | 1071 | wacom_led##SET_ID##_select_show, \ |
09e7d941 PC |
1072 | wacom_led##SET_ID##_select_store) |
1073 | ||
1074 | DEVICE_LED_SELECT_ATTR(0); | |
1075 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
1076 | |
1077 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
1078 | const char *buf, size_t count) | |
1079 | { | |
1080 | unsigned int value; | |
1081 | int err; | |
1082 | ||
1083 | err = kstrtouint(buf, 10, &value); | |
1084 | if (err) | |
1085 | return err; | |
1086 | ||
1087 | mutex_lock(&wacom->lock); | |
1088 | ||
1089 | *dest = value & 0x7f; | |
1090 | err = wacom_led_control(wacom); | |
1091 | ||
1092 | mutex_unlock(&wacom->lock); | |
1093 | ||
1094 | return err < 0 ? err : count; | |
1095 | } | |
1096 | ||
1097 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
1098 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
1099 | struct device_attribute *attr, const char *buf, size_t count) \ | |
1100 | { \ | |
ee79a8f8 | 1101 | struct hid_device *hdev = to_hid_device(dev);\ |
29b47391 | 1102 | struct wacom *wacom = hid_get_drvdata(hdev); \ |
5d7e7d47 EH |
1103 | \ |
1104 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
1105 | buf, count); \ | |
1106 | } \ | |
37449adc PC |
1107 | static ssize_t wacom_##name##_luminance_show(struct device *dev, \ |
1108 | struct device_attribute *attr, char *buf) \ | |
1109 | { \ | |
1110 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
1111 | return scnprintf(buf, PAGE_SIZE, "%d\n", wacom->led.field); \ | |
1112 | } \ | |
e0984bc3 | 1113 | static DEVICE_ATTR(name##_luminance, DEV_ATTR_RW_PERM, \ |
37449adc PC |
1114 | wacom_##name##_luminance_show, \ |
1115 | wacom_##name##_luminance_store) | |
5d7e7d47 EH |
1116 | |
1117 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
1118 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
1119 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
1120 | ||
1121 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
1122 | const char *buf, size_t count) | |
1123 | { | |
ee79a8f8 | 1124 | struct hid_device *hdev = to_hid_device(dev); |
29b47391 | 1125 | struct wacom *wacom = hid_get_drvdata(hdev); |
5d7e7d47 | 1126 | int err; |
849e2f06 BT |
1127 | unsigned len; |
1128 | u8 xfer_id; | |
1129 | ||
1130 | if (hdev->bus == BUS_BLUETOOTH) { | |
1131 | len = 256; | |
1132 | xfer_id = WAC_CMD_ICON_BT_XFER; | |
1133 | } else { | |
1134 | len = 1024; | |
1135 | xfer_id = WAC_CMD_ICON_XFER; | |
1136 | } | |
5d7e7d47 | 1137 | |
849e2f06 | 1138 | if (count != len) |
5d7e7d47 EH |
1139 | return -EINVAL; |
1140 | ||
1141 | mutex_lock(&wacom->lock); | |
1142 | ||
849e2f06 | 1143 | err = wacom_led_putimage(wacom, button_id, xfer_id, len, buf); |
5d7e7d47 EH |
1144 | |
1145 | mutex_unlock(&wacom->lock); | |
1146 | ||
1147 | return err < 0 ? err : count; | |
1148 | } | |
1149 | ||
1150 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
1151 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
1152 | struct device_attribute *attr, const char *buf, size_t count) \ | |
1153 | { \ | |
1154 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
1155 | } \ | |
e0984bc3 | 1156 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, DEV_ATTR_WO_PERM, \ |
5d7e7d47 EH |
1157 | NULL, wacom_btnimg##BUTTON_ID##_store) |
1158 | ||
1159 | DEVICE_BTNIMG_ATTR(0); | |
1160 | DEVICE_BTNIMG_ATTR(1); | |
1161 | DEVICE_BTNIMG_ATTR(2); | |
1162 | DEVICE_BTNIMG_ATTR(3); | |
1163 | DEVICE_BTNIMG_ATTR(4); | |
1164 | DEVICE_BTNIMG_ATTR(5); | |
1165 | DEVICE_BTNIMG_ATTR(6); | |
1166 | DEVICE_BTNIMG_ATTR(7); | |
1167 | ||
09e7d941 PC |
1168 | static struct attribute *cintiq_led_attrs[] = { |
1169 | &dev_attr_status_led0_select.attr, | |
1170 | &dev_attr_status_led1_select.attr, | |
1171 | NULL | |
1172 | }; | |
1173 | ||
1174 | static struct attribute_group cintiq_led_attr_group = { | |
1175 | .name = "wacom_led", | |
1176 | .attrs = cintiq_led_attrs, | |
1177 | }; | |
1178 | ||
1179 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
1180 | &dev_attr_status0_luminance.attr, |
1181 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 1182 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
1183 | &dev_attr_buttons_luminance.attr, |
1184 | &dev_attr_button0_rawimg.attr, | |
1185 | &dev_attr_button1_rawimg.attr, | |
1186 | &dev_attr_button2_rawimg.attr, | |
1187 | &dev_attr_button3_rawimg.attr, | |
1188 | &dev_attr_button4_rawimg.attr, | |
1189 | &dev_attr_button5_rawimg.attr, | |
1190 | &dev_attr_button6_rawimg.attr, | |
1191 | &dev_attr_button7_rawimg.attr, | |
1192 | NULL | |
1193 | }; | |
1194 | ||
09e7d941 | 1195 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 1196 | .name = "wacom_led", |
09e7d941 | 1197 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
1198 | }; |
1199 | ||
9b5b95dd JG |
1200 | static struct attribute *intuos5_led_attrs[] = { |
1201 | &dev_attr_status0_luminance.attr, | |
1202 | &dev_attr_status_led0_select.attr, | |
1203 | NULL | |
1204 | }; | |
1205 | ||
1206 | static struct attribute_group intuos5_led_attr_group = { | |
1207 | .name = "wacom_led", | |
1208 | .attrs = intuos5_led_attrs, | |
1209 | }; | |
1210 | ||
10c55cac AAS |
1211 | static struct attribute *generic_led_attrs[] = { |
1212 | &dev_attr_status0_luminance.attr, | |
1213 | &dev_attr_status_led0_select.attr, | |
1214 | NULL | |
1215 | }; | |
1216 | ||
1217 | static struct attribute_group generic_led_attr_group = { | |
1218 | .name = "wacom_led", | |
1219 | .attrs = generic_led_attrs, | |
1220 | }; | |
1221 | ||
2df68a88 BT |
1222 | struct wacom_sysfs_group_devres { |
1223 | struct attribute_group *group; | |
1224 | struct kobject *root; | |
1225 | }; | |
1226 | ||
1227 | static void wacom_devm_sysfs_group_release(struct device *dev, void *res) | |
1228 | { | |
1229 | struct wacom_sysfs_group_devres *devres = res; | |
1230 | struct kobject *kobj = devres->root; | |
1231 | ||
1232 | dev_dbg(dev, "%s: dropping reference to %s\n", | |
1233 | __func__, devres->group->name); | |
1234 | sysfs_remove_group(kobj, devres->group); | |
1235 | } | |
1236 | ||
f9036bd4 BT |
1237 | static int __wacom_devm_sysfs_create_group(struct wacom *wacom, |
1238 | struct kobject *root, | |
1239 | struct attribute_group *group) | |
2df68a88 BT |
1240 | { |
1241 | struct wacom_sysfs_group_devres *devres; | |
1242 | int error; | |
1243 | ||
1244 | devres = devres_alloc(wacom_devm_sysfs_group_release, | |
1245 | sizeof(struct wacom_sysfs_group_devres), | |
1246 | GFP_KERNEL); | |
1247 | if (!devres) | |
1248 | return -ENOMEM; | |
1249 | ||
1250 | devres->group = group; | |
f9036bd4 | 1251 | devres->root = root; |
2df68a88 BT |
1252 | |
1253 | error = sysfs_create_group(devres->root, group); | |
097b8f62 AY |
1254 | if (error) { |
1255 | devres_free(devres); | |
2df68a88 | 1256 | return error; |
097b8f62 | 1257 | } |
2df68a88 BT |
1258 | |
1259 | devres_add(&wacom->hdev->dev, devres); | |
1260 | ||
1261 | return 0; | |
1262 | } | |
1263 | ||
f9036bd4 BT |
1264 | static int wacom_devm_sysfs_create_group(struct wacom *wacom, |
1265 | struct attribute_group *group) | |
1266 | { | |
1267 | return __wacom_devm_sysfs_create_group(wacom, &wacom->hdev->dev.kobj, | |
1268 | group); | |
1269 | } | |
1270 | ||
34736aa9 | 1271 | enum led_brightness wacom_leds_brightness_get(struct wacom_led *led) |
97f5541f BT |
1272 | { |
1273 | struct wacom *wacom = led->wacom; | |
1274 | ||
1275 | if (wacom->led.max_hlv) | |
1276 | return led->hlv * LED_FULL / wacom->led.max_hlv; | |
1277 | ||
1278 | if (wacom->led.max_llv) | |
1279 | return led->llv * LED_FULL / wacom->led.max_llv; | |
1280 | ||
1281 | /* device doesn't support brightness tuning */ | |
1282 | return LED_FULL; | |
1283 | } | |
1284 | ||
1285 | static enum led_brightness __wacom_led_brightness_get(struct led_classdev *cdev) | |
1286 | { | |
1287 | struct wacom_led *led = container_of(cdev, struct wacom_led, cdev); | |
1288 | struct wacom *wacom = led->wacom; | |
1289 | ||
1290 | if (wacom->led.groups[led->group].select != led->id) | |
1291 | return LED_OFF; | |
1292 | ||
1293 | return wacom_leds_brightness_get(led); | |
1294 | } | |
1295 | ||
1296 | static int wacom_led_brightness_set(struct led_classdev *cdev, | |
1297 | enum led_brightness brightness) | |
1298 | { | |
1299 | struct wacom_led *led = container_of(cdev, struct wacom_led, cdev); | |
1300 | struct wacom *wacom = led->wacom; | |
1301 | int error; | |
1302 | ||
1303 | mutex_lock(&wacom->lock); | |
1304 | ||
1305 | if (!wacom->led.groups || (brightness == LED_OFF && | |
1306 | wacom->led.groups[led->group].select != led->id)) { | |
1307 | error = 0; | |
1308 | goto out; | |
1309 | } | |
1310 | ||
1311 | led->llv = wacom->led.llv = wacom->led.max_llv * brightness / LED_FULL; | |
1312 | led->hlv = wacom->led.hlv = wacom->led.max_hlv * brightness / LED_FULL; | |
1313 | ||
1314 | wacom->led.groups[led->group].select = led->id; | |
1315 | ||
1316 | error = wacom_led_control(wacom); | |
1317 | ||
1318 | out: | |
1319 | mutex_unlock(&wacom->lock); | |
1320 | ||
1321 | return error; | |
1322 | } | |
1323 | ||
1324 | static void wacom_led_readonly_brightness_set(struct led_classdev *cdev, | |
1325 | enum led_brightness brightness) | |
1326 | { | |
1327 | } | |
1328 | ||
1329 | static int wacom_led_register_one(struct device *dev, struct wacom *wacom, | |
1330 | struct wacom_led *led, unsigned int group, | |
1331 | unsigned int id, bool read_only) | |
1332 | { | |
1333 | int error; | |
1334 | char *name; | |
1335 | ||
1336 | name = devm_kasprintf(dev, GFP_KERNEL, | |
1337 | "%s::wacom-%d.%d", | |
1338 | dev_name(dev), | |
1339 | group, | |
1340 | id); | |
1341 | if (!name) | |
1342 | return -ENOMEM; | |
1343 | ||
34736aa9 BT |
1344 | if (!read_only) { |
1345 | led->trigger.name = name; | |
1346 | error = devm_led_trigger_register(dev, &led->trigger); | |
1347 | if (error) { | |
1348 | hid_err(wacom->hdev, | |
1349 | "failed to register LED trigger %s: %d\n", | |
1350 | led->cdev.name, error); | |
1351 | return error; | |
1352 | } | |
1353 | } | |
1354 | ||
97f5541f BT |
1355 | led->group = group; |
1356 | led->id = id; | |
1357 | led->wacom = wacom; | |
1358 | led->llv = wacom->led.llv; | |
1359 | led->hlv = wacom->led.hlv; | |
1360 | led->cdev.name = name; | |
1361 | led->cdev.max_brightness = LED_FULL; | |
1362 | led->cdev.flags = LED_HW_PLUGGABLE; | |
1363 | led->cdev.brightness_get = __wacom_led_brightness_get; | |
34736aa9 | 1364 | if (!read_only) { |
97f5541f | 1365 | led->cdev.brightness_set_blocking = wacom_led_brightness_set; |
34736aa9 BT |
1366 | led->cdev.default_trigger = led->cdev.name; |
1367 | } else { | |
97f5541f | 1368 | led->cdev.brightness_set = wacom_led_readonly_brightness_set; |
34736aa9 | 1369 | } |
97f5541f BT |
1370 | |
1371 | error = devm_led_classdev_register(dev, &led->cdev); | |
1372 | if (error) { | |
1373 | hid_err(wacom->hdev, | |
1374 | "failed to register LED %s: %d\n", | |
1375 | led->cdev.name, error); | |
1376 | led->cdev.name = NULL; | |
1377 | return error; | |
1378 | } | |
1379 | ||
1380 | return 0; | |
1381 | } | |
1382 | ||
589e5060 BT |
1383 | static void wacom_led_groups_release_one(void *data) |
1384 | { | |
1385 | struct wacom_group_leds *group = data; | |
1386 | ||
1387 | devres_release_group(group->dev, group); | |
1388 | } | |
1389 | ||
97f5541f BT |
1390 | static int wacom_led_groups_alloc_and_register_one(struct device *dev, |
1391 | struct wacom *wacom, | |
1392 | int group_id, int count, | |
1393 | bool read_only) | |
1394 | { | |
1395 | struct wacom_led *leds; | |
1396 | int i, error; | |
1397 | ||
1398 | if (group_id >= wacom->led.count || count <= 0) | |
1399 | return -EINVAL; | |
1400 | ||
1401 | if (!devres_open_group(dev, &wacom->led.groups[group_id], GFP_KERNEL)) | |
1402 | return -ENOMEM; | |
1403 | ||
a86854d0 | 1404 | leds = devm_kcalloc(dev, count, sizeof(struct wacom_led), GFP_KERNEL); |
97f5541f BT |
1405 | if (!leds) { |
1406 | error = -ENOMEM; | |
1407 | goto err; | |
1408 | } | |
1409 | ||
1410 | wacom->led.groups[group_id].leds = leds; | |
1411 | wacom->led.groups[group_id].count = count; | |
1412 | ||
1413 | for (i = 0; i < count; i++) { | |
1414 | error = wacom_led_register_one(dev, wacom, &leds[i], | |
1415 | group_id, i, read_only); | |
1416 | if (error) | |
1417 | goto err; | |
1418 | } | |
1419 | ||
589e5060 BT |
1420 | wacom->led.groups[group_id].dev = dev; |
1421 | ||
1422 | devres_close_group(dev, &wacom->led.groups[group_id]); | |
1423 | ||
1424 | /* | |
1425 | * There is a bug (?) in devm_led_classdev_register() in which its | |
1426 | * increments the refcount of the parent. If the parent is an input | |
1427 | * device, that means the ref count never reaches 0 when | |
1428 | * devm_input_device_release() gets called. | |
1429 | * This means that the LEDs are still there after disconnect. | |
1430 | * Manually force the release of the group so that the leds are released | |
1431 | * once we are done using them. | |
1432 | */ | |
1433 | error = devm_add_action_or_reset(&wacom->hdev->dev, | |
1434 | wacom_led_groups_release_one, | |
1435 | &wacom->led.groups[group_id]); | |
1436 | if (error) | |
1437 | return error; | |
1438 | ||
97f5541f BT |
1439 | return 0; |
1440 | ||
1441 | err: | |
1442 | devres_release_group(dev, &wacom->led.groups[group_id]); | |
1443 | return error; | |
1444 | } | |
1445 | ||
34736aa9 BT |
1446 | struct wacom_led *wacom_led_find(struct wacom *wacom, unsigned int group_id, |
1447 | unsigned int id) | |
1448 | { | |
1449 | struct wacom_group_leds *group; | |
1450 | ||
1451 | if (group_id >= wacom->led.count) | |
1452 | return NULL; | |
1453 | ||
1454 | group = &wacom->led.groups[group_id]; | |
1455 | ||
1456 | if (!group->leds) | |
1457 | return NULL; | |
1458 | ||
1459 | id %= group->count; | |
1460 | ||
1461 | return &group->leds[id]; | |
1462 | } | |
1463 | ||
1464 | /** | |
1465 | * wacom_led_next: gives the next available led with a wacom trigger. | |
1466 | * | |
1467 | * returns the next available struct wacom_led which has its default trigger | |
1468 | * or the current one if none is available. | |
1469 | */ | |
1470 | struct wacom_led *wacom_led_next(struct wacom *wacom, struct wacom_led *cur) | |
1471 | { | |
1472 | struct wacom_led *next_led; | |
1473 | int group, next; | |
1474 | ||
1475 | if (!wacom || !cur) | |
1476 | return NULL; | |
1477 | ||
1478 | group = cur->group; | |
1479 | next = cur->id; | |
1480 | ||
1481 | do { | |
1482 | next_led = wacom_led_find(wacom, group, ++next); | |
1483 | if (!next_led || next_led == cur) | |
1484 | return next_led; | |
1485 | } while (next_led->cdev.trigger != &next_led->trigger); | |
1486 | ||
1487 | return next_led; | |
1488 | } | |
1489 | ||
a50aac71 BT |
1490 | static void wacom_led_groups_release(void *data) |
1491 | { | |
1492 | struct wacom *wacom = data; | |
1493 | ||
1494 | wacom->led.groups = NULL; | |
97f5541f | 1495 | wacom->led.count = 0; |
a50aac71 BT |
1496 | } |
1497 | ||
1498 | static int wacom_led_groups_allocate(struct wacom *wacom, int count) | |
1499 | { | |
97f5541f | 1500 | struct device *dev = &wacom->hdev->dev; |
a50aac71 BT |
1501 | struct wacom_group_leds *groups; |
1502 | int error; | |
1503 | ||
a86854d0 | 1504 | groups = devm_kcalloc(dev, count, sizeof(struct wacom_group_leds), |
a50aac71 BT |
1505 | GFP_KERNEL); |
1506 | if (!groups) | |
1507 | return -ENOMEM; | |
1508 | ||
97f5541f | 1509 | error = devm_add_action_or_reset(dev, wacom_led_groups_release, wacom); |
a50aac71 BT |
1510 | if (error) |
1511 | return error; | |
1512 | ||
1513 | wacom->led.groups = groups; | |
97f5541f BT |
1514 | wacom->led.count = count; |
1515 | ||
1516 | return 0; | |
1517 | } | |
1518 | ||
1519 | static int wacom_leds_alloc_and_register(struct wacom *wacom, int group_count, | |
1520 | int led_per_group, bool read_only) | |
1521 | { | |
1522 | struct device *dev; | |
1523 | int i, error; | |
1524 | ||
1525 | if (!wacom->wacom_wac.pad_input) | |
1526 | return -EINVAL; | |
1527 | ||
1528 | dev = &wacom->wacom_wac.pad_input->dev; | |
1529 | ||
1530 | error = wacom_led_groups_allocate(wacom, group_count); | |
1531 | if (error) | |
1532 | return error; | |
1533 | ||
1534 | for (i = 0; i < group_count; i++) { | |
1535 | error = wacom_led_groups_alloc_and_register_one(dev, wacom, i, | |
1536 | led_per_group, | |
1537 | read_only); | |
1538 | if (error) | |
1539 | return error; | |
1540 | } | |
a50aac71 BT |
1541 | |
1542 | return 0; | |
1543 | } | |
1544 | ||
10c55cac | 1545 | int wacom_initialize_leds(struct wacom *wacom) |
5d7e7d47 EH |
1546 | { |
1547 | int error; | |
1548 | ||
862cf553 JG |
1549 | if (!(wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD)) |
1550 | return 0; | |
1551 | ||
09e7d941 PC |
1552 | /* Initialize default values */ |
1553 | switch (wacom->wacom_wac.features.type) { | |
10c55cac AAS |
1554 | case HID_GENERIC: |
1555 | if (!wacom->generic_has_leds) | |
1556 | return 0; | |
1557 | wacom->led.llv = 100; | |
1558 | wacom->led.max_llv = 100; | |
1559 | ||
1560 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); | |
1561 | if (error) { | |
1562 | hid_err(wacom->hdev, | |
1563 | "cannot create leds err: %d\n", error); | |
1564 | return error; | |
1565 | } | |
1566 | ||
1567 | error = wacom_devm_sysfs_create_group(wacom, | |
1568 | &generic_led_attr_group); | |
1569 | break; | |
1570 | ||
a19fc986 | 1571 | case INTUOS4S: |
09e7d941 | 1572 | case INTUOS4: |
81af7e61 | 1573 | case INTUOS4WL: |
09e7d941 | 1574 | case INTUOS4L: |
f4fa9a6d | 1575 | wacom->led.llv = 10; |
5d7e7d47 | 1576 | wacom->led.hlv = 20; |
97f5541f BT |
1577 | wacom->led.max_llv = 127; |
1578 | wacom->led.max_hlv = 127; | |
5d7e7d47 | 1579 | wacom->led.img_lum = 10; |
a50aac71 | 1580 | |
97f5541f | 1581 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); |
a50aac71 BT |
1582 | if (error) { |
1583 | hid_err(wacom->hdev, | |
1584 | "cannot create leds err: %d\n", error); | |
1585 | return error; | |
1586 | } | |
1587 | ||
2df68a88 BT |
1588 | error = wacom_devm_sysfs_create_group(wacom, |
1589 | &intuos4_led_attr_group); | |
09e7d941 PC |
1590 | break; |
1591 | ||
246835fc | 1592 | case WACOM_24HD: |
09e7d941 | 1593 | case WACOM_21UX2: |
09e7d941 PC |
1594 | wacom->led.llv = 0; |
1595 | wacom->led.hlv = 0; | |
1596 | wacom->led.img_lum = 0; | |
5d7e7d47 | 1597 | |
97f5541f | 1598 | error = wacom_leds_alloc_and_register(wacom, 2, 4, false); |
a50aac71 BT |
1599 | if (error) { |
1600 | hid_err(wacom->hdev, | |
1601 | "cannot create leds err: %d\n", error); | |
1602 | return error; | |
1603 | } | |
1604 | ||
2df68a88 BT |
1605 | error = wacom_devm_sysfs_create_group(wacom, |
1606 | &cintiq_led_attr_group); | |
09e7d941 PC |
1607 | break; |
1608 | ||
9b5b95dd JG |
1609 | case INTUOS5S: |
1610 | case INTUOS5: | |
1611 | case INTUOS5L: | |
9a35c411 PC |
1612 | case INTUOSPS: |
1613 | case INTUOSPM: | |
1614 | case INTUOSPL: | |
862cf553 | 1615 | wacom->led.llv = 32; |
97f5541f | 1616 | wacom->led.max_llv = 96; |
862cf553 | 1617 | |
97f5541f | 1618 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); |
a50aac71 BT |
1619 | if (error) { |
1620 | hid_err(wacom->hdev, | |
1621 | "cannot create leds err: %d\n", error); | |
1622 | return error; | |
1623 | } | |
1624 | ||
2df68a88 BT |
1625 | error = wacom_devm_sysfs_create_group(wacom, |
1626 | &intuos5_led_attr_group); | |
9b5b95dd JG |
1627 | break; |
1628 | ||
4922cd26 JG |
1629 | case INTUOSP2_BT: |
1630 | wacom->led.llv = 50; | |
1631 | wacom->led.max_llv = 100; | |
1632 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); | |
1633 | if (error) { | |
1634 | hid_err(wacom->hdev, | |
1635 | "cannot create leds err: %d\n", error); | |
1636 | return error; | |
1637 | } | |
1638 | return 0; | |
1639 | ||
a50aac71 | 1640 | case REMOTE: |
97f5541f BT |
1641 | wacom->led.llv = 255; |
1642 | wacom->led.max_llv = 255; | |
a50aac71 BT |
1643 | error = wacom_led_groups_allocate(wacom, 5); |
1644 | if (error) { | |
1645 | hid_err(wacom->hdev, | |
1646 | "cannot create leds err: %d\n", error); | |
1647 | return error; | |
1648 | } | |
1649 | return 0; | |
1650 | ||
09e7d941 PC |
1651 | default: |
1652 | return 0; | |
5d7e7d47 EH |
1653 | } |
1654 | ||
09e7d941 | 1655 | if (error) { |
c31a408f | 1656 | hid_err(wacom->hdev, |
09e7d941 PC |
1657 | "cannot create sysfs group err: %d\n", error); |
1658 | return error; | |
1659 | } | |
09e7d941 | 1660 | |
5d7e7d47 EH |
1661 | return 0; |
1662 | } | |
1663 | ||
a544c619 BT |
1664 | static void wacom_init_work(struct work_struct *work) |
1665 | { | |
1666 | struct wacom *wacom = container_of(work, struct wacom, init_work.work); | |
1667 | ||
1668 | _wacom_query_tablet_data(wacom); | |
1669 | wacom_led_control(wacom); | |
1670 | } | |
1671 | ||
1672 | static void wacom_query_tablet_data(struct wacom *wacom) | |
1673 | { | |
1674 | schedule_delayed_work(&wacom->init_work, msecs_to_jiffies(1000)); | |
1675 | } | |
1676 | ||
a1d552cc | 1677 | static enum power_supply_property wacom_battery_props[] = { |
9956953e | 1678 | POWER_SUPPLY_PROP_MODEL_NAME, |
71fa641e | 1679 | POWER_SUPPLY_PROP_PRESENT, |
ac8d1010 | 1680 | POWER_SUPPLY_PROP_STATUS, |
6e2a6e80 | 1681 | POWER_SUPPLY_PROP_SCOPE, |
a1d552cc CB |
1682 | POWER_SUPPLY_PROP_CAPACITY |
1683 | }; | |
1684 | ||
1685 | static int wacom_battery_get_property(struct power_supply *psy, | |
1686 | enum power_supply_property psp, | |
1687 | union power_supply_propval *val) | |
1688 | { | |
59d69bc8 | 1689 | struct wacom_battery *battery = power_supply_get_drvdata(psy); |
a1d552cc CB |
1690 | int ret = 0; |
1691 | ||
1692 | switch (psp) { | |
9956953e BT |
1693 | case POWER_SUPPLY_PROP_MODEL_NAME: |
1694 | val->strval = battery->wacom->wacom_wac.name; | |
1695 | break; | |
71fa641e | 1696 | case POWER_SUPPLY_PROP_PRESENT: |
59d69bc8 | 1697 | val->intval = battery->bat_connected; |
71fa641e | 1698 | break; |
6e2a6e80 BN |
1699 | case POWER_SUPPLY_PROP_SCOPE: |
1700 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
1701 | break; | |
a1d552cc | 1702 | case POWER_SUPPLY_PROP_CAPACITY: |
59d69bc8 | 1703 | val->intval = battery->battery_capacity; |
ac8d1010 BT |
1704 | break; |
1705 | case POWER_SUPPLY_PROP_STATUS: | |
16e45989 JG |
1706 | if (battery->bat_status != WACOM_POWER_SUPPLY_STATUS_AUTO) |
1707 | val->intval = battery->bat_status; | |
1708 | else if (battery->bat_charging) | |
ac8d1010 | 1709 | val->intval = POWER_SUPPLY_STATUS_CHARGING; |
59d69bc8 BT |
1710 | else if (battery->battery_capacity == 100 && |
1711 | battery->ps_connected) | |
ac8d1010 | 1712 | val->intval = POWER_SUPPLY_STATUS_FULL; |
59d69bc8 | 1713 | else if (battery->ps_connected) |
b0882cb7 | 1714 | val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING; |
ac8d1010 BT |
1715 | else |
1716 | val->intval = POWER_SUPPLY_STATUS_DISCHARGING; | |
a1d552cc CB |
1717 | break; |
1718 | default: | |
1719 | ret = -EINVAL; | |
1720 | break; | |
1721 | } | |
1722 | ||
1723 | return ret; | |
1724 | } | |
1725 | ||
59d69bc8 BT |
1726 | static int __wacom_initialize_battery(struct wacom *wacom, |
1727 | struct wacom_battery *battery) | |
a1d552cc | 1728 | { |
d70420b9 | 1729 | static atomic_t battery_no = ATOMIC_INIT(0); |
b189da90 | 1730 | struct device *dev = &wacom->hdev->dev; |
59d69bc8 | 1731 | struct power_supply_config psy_cfg = { .drv_data = battery, }; |
136ae5e9 | 1732 | struct power_supply *ps_bat; |
59d69bc8 | 1733 | struct power_supply_desc *bat_desc = &battery->bat_desc; |
d70420b9 | 1734 | unsigned long n; |
b189da90 BT |
1735 | int error; |
1736 | ||
1737 | if (!devres_open_group(dev, bat_desc, GFP_KERNEL)) | |
1738 | return -ENOMEM; | |
a1d552cc | 1739 | |
9956953e BT |
1740 | battery->wacom = wacom; |
1741 | ||
59d69bc8 BT |
1742 | n = atomic_inc_return(&battery_no) - 1; |
1743 | ||
1744 | bat_desc->properties = wacom_battery_props; | |
1745 | bat_desc->num_properties = ARRAY_SIZE(wacom_battery_props); | |
1746 | bat_desc->get_property = wacom_battery_get_property; | |
1747 | sprintf(battery->bat_name, "wacom_battery_%ld", n); | |
1748 | bat_desc->name = battery->bat_name; | |
96983296 | 1749 | bat_desc->type = POWER_SUPPLY_TYPE_USB; |
59d69bc8 BT |
1750 | bat_desc->use_for_apm = 0; |
1751 | ||
59d69bc8 BT |
1752 | ps_bat = devm_power_supply_register(dev, bat_desc, &psy_cfg); |
1753 | if (IS_ERR(ps_bat)) { | |
1754 | error = PTR_ERR(ps_bat); | |
1755 | goto err; | |
1756 | } | |
297d716f | 1757 | |
59d69bc8 | 1758 | power_supply_powers(ps_bat, &wacom->hdev->dev); |
7dbd229e | 1759 | |
59d69bc8 | 1760 | battery->battery = ps_bat; |
a1d552cc | 1761 | |
b189da90 | 1762 | devres_close_group(dev, bat_desc); |
7dbd229e | 1763 | return 0; |
b189da90 BT |
1764 | |
1765 | err: | |
1766 | devres_release_group(dev, bat_desc); | |
1767 | return error; | |
a1d552cc CB |
1768 | } |
1769 | ||
59d69bc8 BT |
1770 | static int wacom_initialize_battery(struct wacom *wacom) |
1771 | { | |
1772 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) | |
1773 | return __wacom_initialize_battery(wacom, &wacom->battery); | |
1774 | ||
1775 | return 0; | |
1776 | } | |
1777 | ||
a1d552cc CB |
1778 | static void wacom_destroy_battery(struct wacom *wacom) |
1779 | { | |
59d69bc8 BT |
1780 | if (wacom->battery.battery) { |
1781 | devres_release_group(&wacom->hdev->dev, | |
1782 | &wacom->battery.bat_desc); | |
1783 | wacom->battery.battery = NULL; | |
b7af2bb8 | 1784 | } |
a1d552cc CB |
1785 | } |
1786 | ||
f81a1295 BT |
1787 | static ssize_t wacom_show_speed(struct device *dev, |
1788 | struct device_attribute | |
1789 | *attr, char *buf) | |
1790 | { | |
ee79a8f8 | 1791 | struct hid_device *hdev = to_hid_device(dev); |
f81a1295 BT |
1792 | struct wacom *wacom = hid_get_drvdata(hdev); |
1793 | ||
1794 | return snprintf(buf, PAGE_SIZE, "%i\n", wacom->wacom_wac.bt_high_speed); | |
1795 | } | |
1796 | ||
1797 | static ssize_t wacom_store_speed(struct device *dev, | |
1798 | struct device_attribute *attr, | |
1799 | const char *buf, size_t count) | |
1800 | { | |
ee79a8f8 | 1801 | struct hid_device *hdev = to_hid_device(dev); |
f81a1295 BT |
1802 | struct wacom *wacom = hid_get_drvdata(hdev); |
1803 | u8 new_speed; | |
1804 | ||
1805 | if (kstrtou8(buf, 0, &new_speed)) | |
1806 | return -EINVAL; | |
1807 | ||
1808 | if (new_speed != 0 && new_speed != 1) | |
1809 | return -EINVAL; | |
1810 | ||
1811 | wacom_bt_query_tablet_data(hdev, new_speed, &wacom->wacom_wac.features); | |
1812 | ||
1813 | return count; | |
1814 | } | |
1815 | ||
e0984bc3 | 1816 | static DEVICE_ATTR(speed, DEV_ATTR_RW_PERM, |
f81a1295 BT |
1817 | wacom_show_speed, wacom_store_speed); |
1818 | ||
72b236d6 AS |
1819 | |
1820 | static ssize_t wacom_show_remote_mode(struct kobject *kobj, | |
1821 | struct kobj_attribute *kattr, | |
1822 | char *buf, int index) | |
1823 | { | |
2cf83833 | 1824 | struct device *dev = kobj_to_dev(kobj->parent); |
ee79a8f8 | 1825 | struct hid_device *hdev = to_hid_device(dev); |
72b236d6 AS |
1826 | struct wacom *wacom = hid_get_drvdata(hdev); |
1827 | u8 mode; | |
1828 | ||
a50aac71 | 1829 | mode = wacom->led.groups[index].select; |
bc35f73a | 1830 | return sprintf(buf, "%d\n", mode < 3 ? mode : -1); |
72b236d6 AS |
1831 | } |
1832 | ||
1833 | #define DEVICE_EKR_ATTR_GROUP(SET_ID) \ | |
1834 | static ssize_t wacom_show_remote##SET_ID##_mode(struct kobject *kobj, \ | |
1835 | struct kobj_attribute *kattr, char *buf) \ | |
1836 | { \ | |
1837 | return wacom_show_remote_mode(kobj, kattr, buf, SET_ID); \ | |
1838 | } \ | |
1839 | static struct kobj_attribute remote##SET_ID##_mode_attr = { \ | |
1840 | .attr = {.name = "remote_mode", \ | |
1841 | .mode = DEV_ATTR_RO_PERM}, \ | |
1842 | .show = wacom_show_remote##SET_ID##_mode, \ | |
1843 | }; \ | |
1844 | static struct attribute *remote##SET_ID##_serial_attrs[] = { \ | |
1845 | &remote##SET_ID##_mode_attr.attr, \ | |
1846 | NULL \ | |
1847 | }; \ | |
1848 | static struct attribute_group remote##SET_ID##_serial_group = { \ | |
1849 | .name = NULL, \ | |
1850 | .attrs = remote##SET_ID##_serial_attrs, \ | |
1851 | } | |
1852 | ||
1853 | DEVICE_EKR_ATTR_GROUP(0); | |
1854 | DEVICE_EKR_ATTR_GROUP(1); | |
1855 | DEVICE_EKR_ATTR_GROUP(2); | |
1856 | DEVICE_EKR_ATTR_GROUP(3); | |
1857 | DEVICE_EKR_ATTR_GROUP(4); | |
1858 | ||
e6f2813a BT |
1859 | static int wacom_remote_create_attr_group(struct wacom *wacom, __u32 serial, |
1860 | int index) | |
72b236d6 AS |
1861 | { |
1862 | int error = 0; | |
83e6b40e | 1863 | struct wacom_remote *remote = wacom->remote; |
72b236d6 | 1864 | |
e7749f6e | 1865 | remote->remotes[index].group.name = devm_kasprintf(&wacom->hdev->dev, |
83e6b40e BT |
1866 | GFP_KERNEL, |
1867 | "%d", serial); | |
e7749f6e | 1868 | if (!remote->remotes[index].group.name) |
72b236d6 | 1869 | return -ENOMEM; |
72b236d6 | 1870 | |
f9036bd4 | 1871 | error = __wacom_devm_sysfs_create_group(wacom, remote->remote_dir, |
e7749f6e | 1872 | &remote->remotes[index].group); |
72b236d6 | 1873 | if (error) { |
e7749f6e | 1874 | remote->remotes[index].group.name = NULL; |
72b236d6 AS |
1875 | hid_err(wacom->hdev, |
1876 | "cannot create sysfs group err: %d\n", error); | |
72b236d6 AS |
1877 | return error; |
1878 | } | |
1879 | ||
1880 | return 0; | |
1881 | } | |
1882 | ||
72b236d6 AS |
1883 | static int wacom_cmd_unpair_remote(struct wacom *wacom, unsigned char selector) |
1884 | { | |
1885 | const size_t buf_size = 2; | |
1886 | unsigned char *buf; | |
1887 | int retval; | |
1888 | ||
1889 | buf = kzalloc(buf_size, GFP_KERNEL); | |
1890 | if (!buf) | |
1891 | return -ENOMEM; | |
1892 | ||
1893 | buf[0] = WAC_CMD_DELETE_PAIRING; | |
1894 | buf[1] = selector; | |
1895 | ||
1896 | retval = wacom_set_report(wacom->hdev, HID_OUTPUT_REPORT, buf, | |
1897 | buf_size, WAC_CMD_RETRIES); | |
1898 | kfree(buf); | |
1899 | ||
1900 | return retval; | |
1901 | } | |
1902 | ||
1903 | static ssize_t wacom_store_unpair_remote(struct kobject *kobj, | |
1904 | struct kobj_attribute *attr, | |
1905 | const char *buf, size_t count) | |
1906 | { | |
1907 | unsigned char selector = 0; | |
2cf83833 | 1908 | struct device *dev = kobj_to_dev(kobj->parent); |
ee79a8f8 | 1909 | struct hid_device *hdev = to_hid_device(dev); |
72b236d6 AS |
1910 | struct wacom *wacom = hid_get_drvdata(hdev); |
1911 | int err; | |
1912 | ||
1913 | if (!strncmp(buf, "*\n", 2)) { | |
1914 | selector = WAC_CMD_UNPAIR_ALL; | |
1915 | } else { | |
1916 | hid_info(wacom->hdev, "remote: unrecognized unpair code: %s\n", | |
1917 | buf); | |
1918 | return -1; | |
1919 | } | |
1920 | ||
1921 | mutex_lock(&wacom->lock); | |
1922 | ||
1923 | err = wacom_cmd_unpair_remote(wacom, selector); | |
1924 | mutex_unlock(&wacom->lock); | |
1925 | ||
1926 | return err < 0 ? err : count; | |
1927 | } | |
1928 | ||
1929 | static struct kobj_attribute unpair_remote_attr = { | |
1930 | .attr = {.name = "unpair_remote", .mode = 0200}, | |
1931 | .store = wacom_store_unpair_remote, | |
1932 | }; | |
1933 | ||
1934 | static const struct attribute *remote_unpair_attrs[] = { | |
1935 | &unpair_remote_attr.attr, | |
1936 | NULL | |
1937 | }; | |
1938 | ||
83e6b40e BT |
1939 | static void wacom_remotes_destroy(void *data) |
1940 | { | |
1941 | struct wacom *wacom = data; | |
1942 | struct wacom_remote *remote = wacom->remote; | |
1943 | ||
1944 | if (!remote) | |
1945 | return; | |
1946 | ||
1947 | kobject_put(remote->remote_dir); | |
1948 | kfifo_free(&remote->remote_fifo); | |
1949 | wacom->remote = NULL; | |
1950 | } | |
1951 | ||
1952 | static int wacom_initialize_remotes(struct wacom *wacom) | |
72b236d6 AS |
1953 | { |
1954 | int error = 0; | |
83e6b40e | 1955 | struct wacom_remote *remote; |
72b236d6 AS |
1956 | int i; |
1957 | ||
1958 | if (wacom->wacom_wac.features.type != REMOTE) | |
1959 | return 0; | |
1960 | ||
83e6b40e BT |
1961 | remote = devm_kzalloc(&wacom->hdev->dev, sizeof(*wacom->remote), |
1962 | GFP_KERNEL); | |
1963 | if (!remote) | |
1964 | return -ENOMEM; | |
72b236d6 | 1965 | |
83e6b40e BT |
1966 | wacom->remote = remote; |
1967 | ||
1968 | spin_lock_init(&remote->remote_lock); | |
1969 | ||
1970 | error = kfifo_alloc(&remote->remote_fifo, | |
1971 | 5 * sizeof(struct wacom_remote_data), | |
1972 | GFP_KERNEL); | |
1973 | if (error) { | |
1974 | hid_err(wacom->hdev, "failed allocating remote_fifo\n"); | |
72b236d6 | 1975 | return -ENOMEM; |
83e6b40e | 1976 | } |
72b236d6 | 1977 | |
e7749f6e BT |
1978 | remote->remotes[0].group = remote0_serial_group; |
1979 | remote->remotes[1].group = remote1_serial_group; | |
1980 | remote->remotes[2].group = remote2_serial_group; | |
1981 | remote->remotes[3].group = remote3_serial_group; | |
1982 | remote->remotes[4].group = remote4_serial_group; | |
83e6b40e BT |
1983 | |
1984 | remote->remote_dir = kobject_create_and_add("wacom_remote", | |
1985 | &wacom->hdev->dev.kobj); | |
1986 | if (!remote->remote_dir) | |
1987 | return -ENOMEM; | |
1988 | ||
1989 | error = sysfs_create_files(remote->remote_dir, remote_unpair_attrs); | |
72b236d6 AS |
1990 | |
1991 | if (error) { | |
1992 | hid_err(wacom->hdev, | |
1993 | "cannot create sysfs group err: %d\n", error); | |
1994 | return error; | |
1995 | } | |
1996 | ||
1997 | for (i = 0; i < WACOM_MAX_REMOTES; i++) { | |
a50aac71 | 1998 | wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN; |
e7749f6e | 1999 | remote->remotes[i].serial = 0; |
72b236d6 AS |
2000 | } |
2001 | ||
83e6b40e BT |
2002 | error = devm_add_action_or_reset(&wacom->hdev->dev, |
2003 | wacom_remotes_destroy, wacom); | |
2004 | if (error) | |
2005 | return error; | |
2006 | ||
72b236d6 AS |
2007 | return 0; |
2008 | } | |
2009 | ||
d2d13f18 | 2010 | static struct input_dev *wacom_allocate_input(struct wacom *wacom) |
3aac0ef1 CB |
2011 | { |
2012 | struct input_dev *input_dev; | |
b6c79f2c | 2013 | struct hid_device *hdev = wacom->hdev; |
3aac0ef1 | 2014 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); |
3aac0ef1 | 2015 | |
3dad188e | 2016 | input_dev = devm_input_allocate_device(&hdev->dev); |
d2d13f18 BT |
2017 | if (!input_dev) |
2018 | return NULL; | |
3aac0ef1 | 2019 | |
2bdd163c | 2020 | input_dev->name = wacom_wac->features.name; |
b6c79f2c BT |
2021 | input_dev->phys = hdev->phys; |
2022 | input_dev->dev.parent = &hdev->dev; | |
3aac0ef1 CB |
2023 | input_dev->open = wacom_open; |
2024 | input_dev->close = wacom_close; | |
b6c79f2c BT |
2025 | input_dev->uniq = hdev->uniq; |
2026 | input_dev->id.bustype = hdev->bus; | |
2027 | input_dev->id.vendor = hdev->vendor; | |
12969e3b | 2028 | input_dev->id.product = wacom_wac->pid ? wacom_wac->pid : hdev->product; |
b6c79f2c | 2029 | input_dev->id.version = hdev->version; |
3aac0ef1 CB |
2030 | input_set_drvdata(input_dev, wacom); |
2031 | ||
d2d13f18 BT |
2032 | return input_dev; |
2033 | } | |
2034 | ||
d9f2d203 JG |
2035 | static int wacom_allocate_inputs(struct wacom *wacom) |
2036 | { | |
2037 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
2038 | ||
2039 | wacom_wac->pen_input = wacom_allocate_input(wacom); | |
2040 | wacom_wac->touch_input = wacom_allocate_input(wacom); | |
2041 | wacom_wac->pad_input = wacom_allocate_input(wacom); | |
3dad188e BT |
2042 | if (!wacom_wac->pen_input || |
2043 | !wacom_wac->touch_input || | |
2044 | !wacom_wac->pad_input) | |
d9f2d203 | 2045 | return -ENOMEM; |
d9f2d203 | 2046 | |
2bdd163c | 2047 | wacom_wac->pen_input->name = wacom_wac->pen_name; |
d9f2d203 JG |
2048 | wacom_wac->touch_input->name = wacom_wac->touch_name; |
2049 | wacom_wac->pad_input->name = wacom_wac->pad_name; | |
2050 | ||
2051 | return 0; | |
2052 | } | |
2053 | ||
2546dacd BT |
2054 | static int wacom_register_inputs(struct wacom *wacom) |
2055 | { | |
2a6cdbdd | 2056 | struct input_dev *pen_input_dev, *touch_input_dev, *pad_input_dev; |
2546dacd | 2057 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); |
2636a3f2 | 2058 | int error = 0; |
2546dacd | 2059 | |
2a6cdbdd JG |
2060 | pen_input_dev = wacom_wac->pen_input; |
2061 | touch_input_dev = wacom_wac->touch_input; | |
2546dacd BT |
2062 | pad_input_dev = wacom_wac->pad_input; |
2063 | ||
2a6cdbdd | 2064 | if (!pen_input_dev || !touch_input_dev || !pad_input_dev) |
2546dacd BT |
2065 | return -EINVAL; |
2066 | ||
2a6cdbdd JG |
2067 | error = wacom_setup_pen_input_capabilities(pen_input_dev, wacom_wac); |
2068 | if (error) { | |
2069 | /* no pen in use on this interface */ | |
2070 | input_free_device(pen_input_dev); | |
2071 | wacom_wac->pen_input = NULL; | |
2072 | pen_input_dev = NULL; | |
2073 | } else { | |
2074 | error = input_register_device(pen_input_dev); | |
2075 | if (error) | |
3dad188e | 2076 | goto fail; |
2a6cdbdd JG |
2077 | } |
2078 | ||
2079 | error = wacom_setup_touch_input_capabilities(touch_input_dev, wacom_wac); | |
2080 | if (error) { | |
2081 | /* no touch in use on this interface */ | |
2082 | input_free_device(touch_input_dev); | |
2083 | wacom_wac->touch_input = NULL; | |
2084 | touch_input_dev = NULL; | |
2085 | } else { | |
2086 | error = input_register_device(touch_input_dev); | |
30ebc1ae | 2087 | if (error) |
3dad188e | 2088 | goto fail; |
30ebc1ae | 2089 | } |
1963518b | 2090 | |
d2d13f18 BT |
2091 | error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac); |
2092 | if (error) { | |
2093 | /* no pad in use on this interface */ | |
2094 | input_free_device(pad_input_dev); | |
2095 | wacom_wac->pad_input = NULL; | |
2096 | pad_input_dev = NULL; | |
2097 | } else { | |
2098 | error = input_register_device(pad_input_dev); | |
2099 | if (error) | |
3dad188e | 2100 | goto fail; |
d2d13f18 BT |
2101 | } |
2102 | ||
1963518b | 2103 | return 0; |
3aac0ef1 | 2104 | |
3dad188e BT |
2105 | fail: |
2106 | wacom_wac->pad_input = NULL; | |
2a6cdbdd | 2107 | wacom_wac->touch_input = NULL; |
2a6cdbdd | 2108 | wacom_wac->pen_input = NULL; |
3aac0ef1 CB |
2109 | return error; |
2110 | } | |
2111 | ||
0be01712 JG |
2112 | /* |
2113 | * Not all devices report physical dimensions from HID. | |
2114 | * Compute the default from hardcoded logical dimension | |
2115 | * and resolution before driver overwrites them. | |
2116 | */ | |
2117 | static void wacom_set_default_phy(struct wacom_features *features) | |
2118 | { | |
2119 | if (features->x_resolution) { | |
2120 | features->x_phy = (features->x_max * 100) / | |
2121 | features->x_resolution; | |
2122 | features->y_phy = (features->y_max * 100) / | |
2123 | features->y_resolution; | |
2124 | } | |
2125 | } | |
2126 | ||
2127 | static void wacom_calculate_res(struct wacom_features *features) | |
2128 | { | |
2129 | /* set unit to "100th of a mm" for devices not reported by HID */ | |
2130 | if (!features->unit) { | |
2131 | features->unit = 0x11; | |
2132 | features->unitExpo = -3; | |
2133 | } | |
2134 | ||
2135 | features->x_resolution = wacom_calc_hid_res(features->x_max, | |
2136 | features->x_phy, | |
2137 | features->unit, | |
2138 | features->unitExpo); | |
2139 | features->y_resolution = wacom_calc_hid_res(features->y_max, | |
2140 | features->y_phy, | |
2141 | features->unit, | |
2142 | features->unitExpo); | |
2143 | } | |
2144 | ||
fce9957d JG |
2145 | void wacom_battery_work(struct work_struct *work) |
2146 | { | |
d17d1f17 | 2147 | struct wacom *wacom = container_of(work, struct wacom, battery_work); |
fce9957d JG |
2148 | |
2149 | if ((wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) && | |
59d69bc8 | 2150 | !wacom->battery.battery) { |
fce9957d JG |
2151 | wacom_initialize_battery(wacom); |
2152 | } | |
2153 | else if (!(wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) && | |
59d69bc8 | 2154 | wacom->battery.battery) { |
fce9957d JG |
2155 | wacom_destroy_battery(wacom); |
2156 | } | |
2157 | } | |
2158 | ||
01c846f9 BT |
2159 | static size_t wacom_compute_pktlen(struct hid_device *hdev) |
2160 | { | |
2161 | struct hid_report_enum *report_enum; | |
2162 | struct hid_report *report; | |
2163 | size_t size = 0; | |
2164 | ||
2165 | report_enum = hdev->report_enum + HID_INPUT_REPORT; | |
2166 | ||
2167 | list_for_each_entry(report, &report_enum->report_list, list) { | |
dabb05c6 | 2168 | size_t report_size = hid_report_len(report); |
01c846f9 BT |
2169 | if (report_size > size) |
2170 | size = report_size; | |
2171 | } | |
2172 | ||
2173 | return size; | |
2174 | } | |
2175 | ||
fd5f92b6 | 2176 | static void wacom_update_name(struct wacom *wacom, const char *suffix) |
c24eab4e PC |
2177 | { |
2178 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
2179 | struct wacom_features *features = &wacom_wac->features; | |
073b50bc | 2180 | char name[WACOM_NAME_MAX - 20]; /* Leave some room for suffixes */ |
c24eab4e PC |
2181 | |
2182 | /* Generic devices name unspecified */ | |
2183 | if ((features->type == HID_GENERIC) && !strcmp("Wacom HID", features->name)) { | |
09dc28ac | 2184 | char *product_name = wacom->hdev->name; |
f2209d4a | 2185 | |
09dc28ac JG |
2186 | if (hid_is_using_ll_driver(wacom->hdev, &usb_hid_driver)) { |
2187 | struct usb_interface *intf = to_usb_interface(wacom->hdev->dev.parent); | |
2188 | struct usb_device *dev = interface_to_usbdev(intf); | |
2189 | product_name = dev->product; | |
2190 | } | |
f2209d4a | 2191 | |
09dc28ac JG |
2192 | if (wacom->hdev->bus == BUS_I2C) { |
2193 | snprintf(name, sizeof(name), "%s %X", | |
2194 | features->name, wacom->hdev->product); | |
2195 | } else if (strstr(product_name, "Wacom") || | |
2196 | strstr(product_name, "wacom") || | |
2197 | strstr(product_name, "WACOM")) { | |
2198 | strlcpy(name, product_name, sizeof(name)); | |
c24eab4e | 2199 | } else { |
09dc28ac | 2200 | snprintf(name, sizeof(name), "Wacom %s", product_name); |
c24eab4e | 2201 | } |
09dc28ac JG |
2202 | |
2203 | /* strip out excess whitespaces */ | |
2204 | while (1) { | |
2205 | char *gap = strstr(name, " "); | |
2206 | if (gap == NULL) | |
2207 | break; | |
2208 | /* shift everything including the terminator */ | |
2209 | memmove(gap, gap+1, strlen(gap)); | |
2210 | } | |
2211 | ||
2212 | /* get rid of trailing whitespace */ | |
2213 | if (name[strlen(name)-1] == ' ') | |
2214 | name[strlen(name)-1] = '\0'; | |
c24eab4e | 2215 | } else { |
44b5250b | 2216 | strlcpy(name, features->name, sizeof(name)); |
c24eab4e PC |
2217 | } |
2218 | ||
9956953e BT |
2219 | snprintf(wacom_wac->name, sizeof(wacom_wac->name), "%s%s", |
2220 | name, suffix); | |
2221 | ||
c24eab4e | 2222 | /* Append the device type to the name */ |
2a6cdbdd | 2223 | snprintf(wacom_wac->pen_name, sizeof(wacom_wac->pen_name), |
fd5f92b6 | 2224 | "%s%s Pen", name, suffix); |
2a6cdbdd | 2225 | snprintf(wacom_wac->touch_name, sizeof(wacom_wac->touch_name), |
fd5f92b6 | 2226 | "%s%s Finger", name, suffix); |
c24eab4e | 2227 | snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name), |
fd5f92b6 | 2228 | "%s%s Pad", name, suffix); |
c24eab4e PC |
2229 | } |
2230 | ||
84dfbd7f BT |
2231 | static void wacom_release_resources(struct wacom *wacom) |
2232 | { | |
2233 | struct hid_device *hdev = wacom->hdev; | |
2234 | ||
2235 | if (!wacom->resources) | |
2236 | return; | |
2237 | ||
2238 | devres_release_group(&hdev->dev, wacom); | |
2239 | ||
2240 | wacom->resources = false; | |
2241 | ||
2242 | wacom->wacom_wac.pen_input = NULL; | |
2243 | wacom->wacom_wac.touch_input = NULL; | |
2244 | wacom->wacom_wac.pad_input = NULL; | |
2245 | } | |
2246 | ||
d2ec58ae AAS |
2247 | static void wacom_set_shared_values(struct wacom_wac *wacom_wac) |
2248 | { | |
2249 | if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH) { | |
2250 | wacom_wac->shared->type = wacom_wac->features.type; | |
2251 | wacom_wac->shared->touch_input = wacom_wac->touch_input; | |
2252 | } | |
2253 | ||
d793ff81 | 2254 | if (wacom_wac->has_mute_touch_switch) { |
d2ec58ae | 2255 | wacom_wac->shared->has_mute_touch_switch = true; |
d793ff81 PC |
2256 | wacom_wac->shared->is_touch_on = true; |
2257 | } | |
d2ec58ae AAS |
2258 | |
2259 | if (wacom_wac->shared->has_mute_touch_switch && | |
2260 | wacom_wac->shared->touch_input) { | |
2261 | set_bit(EV_SW, wacom_wac->shared->touch_input->evbit); | |
2262 | input_set_capability(wacom_wac->shared->touch_input, EV_SW, | |
2263 | SW_MUTE_DEVICE); | |
2264 | } | |
2265 | } | |
2266 | ||
fd5f92b6 | 2267 | static int wacom_parse_and_register(struct wacom *wacom, bool wireless) |
3bea733a | 2268 | { |
c58ac3a8 BT |
2269 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; |
2270 | struct wacom_features *features = &wacom_wac->features; | |
2271 | struct hid_device *hdev = wacom->hdev; | |
e33da8a5 | 2272 | int error; |
7704ac93 | 2273 | unsigned int connect_mask = HID_CONNECT_HIDRAW; |
3bea733a | 2274 | |
01c846f9 | 2275 | features->pktlen = wacom_compute_pktlen(hdev); |
c58ac3a8 BT |
2276 | if (features->pktlen > WACOM_PKGLEN_MAX) |
2277 | return -EINVAL; | |
3bea733a | 2278 | |
84dfbd7f BT |
2279 | if (!devres_open_group(&hdev->dev, wacom, GFP_KERNEL)) |
2280 | return -ENOMEM; | |
2281 | ||
2282 | wacom->resources = true; | |
2283 | ||
3f14a63a JG |
2284 | error = wacom_allocate_inputs(wacom); |
2285 | if (error) | |
3888b0d5 | 2286 | goto fail; |
494078b0 | 2287 | |
8c97a765 BT |
2288 | /* |
2289 | * Bamboo Pad has a generic hid handling for the Pen, and we switch it | |
2290 | * into debug mode for the touch part. | |
2291 | * We ignore the other interfaces. | |
2292 | */ | |
2293 | if (features->type == BAMBOO_PAD) { | |
2294 | if (features->pktlen == WACOM_PKGLEN_PENABLED) { | |
2295 | features->type = HID_GENERIC; | |
2296 | } else if ((features->pktlen != WACOM_PKGLEN_BPAD_TOUCH) && | |
2297 | (features->pktlen != WACOM_PKGLEN_BPAD_TOUCH_USB)) { | |
2298 | error = -ENODEV; | |
3888b0d5 | 2299 | goto fail; |
8c97a765 BT |
2300 | } |
2301 | } | |
2302 | ||
401d7d10 PC |
2303 | /* set the default size in case we do not get them from hid */ |
2304 | wacom_set_default_phy(features); | |
2305 | ||
f393ee2b | 2306 | /* Retrieve the physical and logical size for touch devices */ |
c669fb2b | 2307 | wacom_retrieve_hid_descriptor(hdev, features); |
42f4f272 | 2308 | wacom_setup_device_quirks(wacom); |
042628ab | 2309 | |
aa86b18c JG |
2310 | if (features->device_type == WACOM_DEVICETYPE_NONE && |
2311 | features->type != WIRELESS) { | |
8e116d31 JG |
2312 | error = features->type == HID_GENERIC ? -ENODEV : 0; |
2313 | ||
042628ab | 2314 | dev_warn(&hdev->dev, "Unknown device_type for '%s'. %s.", |
8e116d31 JG |
2315 | hdev->name, |
2316 | error ? "Ignoring" : "Assuming pen"); | |
2317 | ||
2318 | if (error) | |
3888b0d5 | 2319 | goto fail; |
042628ab | 2320 | |
aa86b18c | 2321 | features->device_type |= WACOM_DEVICETYPE_PEN; |
042628ab JG |
2322 | } |
2323 | ||
401d7d10 PC |
2324 | wacom_calculate_res(features); |
2325 | ||
fd5f92b6 | 2326 | wacom_update_name(wacom, wireless ? " (WL)" : ""); |
4492efff | 2327 | |
8b407359 AAS |
2328 | /* pen only Bamboo neither support touch nor pad */ |
2329 | if ((features->type == BAMBOO_PEN) && | |
2330 | ((features->device_type & WACOM_DEVICETYPE_TOUCH) || | |
2331 | (features->device_type & WACOM_DEVICETYPE_PAD))) { | |
2332 | error = -ENODEV; | |
2333 | goto fail; | |
2334 | } | |
2335 | ||
a9ce7856 JG |
2336 | error = wacom_add_shared_data(hdev); |
2337 | if (error) | |
2338 | goto fail; | |
49b764ae | 2339 | |
ccad85cc | 2340 | if (!(features->device_type & WACOM_DEVICETYPE_WL_MONITOR) && |
f81a1295 BT |
2341 | (features->quirks & WACOM_QUIRK_BATTERY)) { |
2342 | error = wacom_initialize_battery(wacom); | |
2343 | if (error) | |
3888b0d5 | 2344 | goto fail; |
f81a1295 BT |
2345 | } |
2346 | ||
3f14a63a JG |
2347 | error = wacom_register_inputs(wacom); |
2348 | if (error) | |
3888b0d5 | 2349 | goto fail; |
f81a1295 | 2350 | |
b62f6465 | 2351 | if (wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD) { |
85d2c77b BT |
2352 | error = wacom_initialize_leds(wacom); |
2353 | if (error) | |
3888b0d5 | 2354 | goto fail; |
85d2c77b | 2355 | |
83e6b40e | 2356 | error = wacom_initialize_remotes(wacom); |
b62f6465 | 2357 | if (error) |
3888b0d5 | 2358 | goto fail; |
b62f6465 BT |
2359 | } |
2360 | ||
7704ac93 BT |
2361 | if (features->type == HID_GENERIC) |
2362 | connect_mask |= HID_CONNECT_DRIVER; | |
2363 | ||
29b47391 | 2364 | /* Regular HID work starts now */ |
7704ac93 | 2365 | error = hid_hw_start(hdev, connect_mask); |
29b47391 BT |
2366 | if (error) { |
2367 | hid_err(hdev, "hw start failed\n"); | |
3888b0d5 | 2368 | goto fail; |
d3825d51 | 2369 | } |
961794a0 | 2370 | |
fd5f92b6 BT |
2371 | if (!wireless) { |
2372 | /* Note that if query fails it is not a hard failure */ | |
a544c619 | 2373 | wacom_query_tablet_data(wacom); |
fd5f92b6 | 2374 | } |
86e88f0e JG |
2375 | |
2376 | /* touch only Bamboo doesn't support pen */ | |
2377 | if ((features->type == BAMBOO_TOUCH) && | |
2378 | (features->device_type & WACOM_DEVICETYPE_PEN)) { | |
4d20c332 AAS |
2379 | cancel_delayed_work_sync(&wacom->init_work); |
2380 | _wacom_query_tablet_data(wacom); | |
86e88f0e | 2381 | error = -ENODEV; |
b62f6465 | 2382 | goto fail_quirks; |
86e88f0e JG |
2383 | } |
2384 | ||
ccad85cc | 2385 | if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR) |
29b47391 BT |
2386 | error = hid_hw_open(hdev); |
2387 | ||
d2ec58ae | 2388 | wacom_set_shared_values(wacom_wac); |
84dfbd7f BT |
2389 | devres_close_group(&hdev->dev, wacom); |
2390 | ||
3bea733a PC |
2391 | return 0; |
2392 | ||
b62f6465 | 2393 | fail_quirks: |
c58ac3a8 | 2394 | hid_hw_stop(hdev); |
3888b0d5 | 2395 | fail: |
84dfbd7f | 2396 | wacom_release_resources(wacom); |
c58ac3a8 BT |
2397 | return error; |
2398 | } | |
2399 | ||
a2f091af BT |
2400 | static void wacom_wireless_work(struct work_struct *work) |
2401 | { | |
d17d1f17 | 2402 | struct wacom *wacom = container_of(work, struct wacom, wireless_work); |
a2f091af BT |
2403 | struct usb_device *usbdev = wacom->usbdev; |
2404 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
2405 | struct hid_device *hdev1, *hdev2; | |
2406 | struct wacom *wacom1, *wacom2; | |
2407 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
2408 | int error; | |
2409 | ||
2410 | /* | |
2411 | * Regardless if this is a disconnect or a new tablet, | |
2412 | * remove any existing input and battery devices. | |
2413 | */ | |
2414 | ||
2415 | wacom_destroy_battery(wacom); | |
2416 | ||
2417 | /* Stylus interface */ | |
2418 | hdev1 = usb_get_intfdata(usbdev->config->interface[1]); | |
2419 | wacom1 = hid_get_drvdata(hdev1); | |
2420 | wacom_wac1 = &(wacom1->wacom_wac); | |
84dfbd7f | 2421 | wacom_release_resources(wacom1); |
a2f091af BT |
2422 | |
2423 | /* Touch interface */ | |
2424 | hdev2 = usb_get_intfdata(usbdev->config->interface[2]); | |
2425 | wacom2 = hid_get_drvdata(hdev2); | |
2426 | wacom_wac2 = &(wacom2->wacom_wac); | |
84dfbd7f | 2427 | wacom_release_resources(wacom2); |
a2f091af BT |
2428 | |
2429 | if (wacom_wac->pid == 0) { | |
2430 | hid_info(wacom->hdev, "wireless tablet disconnected\n"); | |
a2f091af BT |
2431 | } else { |
2432 | const struct hid_device_id *id = wacom_ids; | |
2433 | ||
2434 | hid_info(wacom->hdev, "wireless tablet connected with PID %x\n", | |
2435 | wacom_wac->pid); | |
2436 | ||
2437 | while (id->bus) { | |
2438 | if (id->vendor == USB_VENDOR_ID_WACOM && | |
2439 | id->product == wacom_wac->pid) | |
2440 | break; | |
2441 | id++; | |
2442 | } | |
2443 | ||
2444 | if (!id->bus) { | |
2445 | hid_info(wacom->hdev, "ignoring unknown PID.\n"); | |
2446 | return; | |
2447 | } | |
2448 | ||
2449 | /* Stylus interface */ | |
2450 | wacom_wac1->features = | |
2451 | *((struct wacom_features *)id->driver_data); | |
fd5f92b6 | 2452 | |
a2f091af | 2453 | wacom_wac1->pid = wacom_wac->pid; |
fd5f92b6 BT |
2454 | hid_hw_stop(hdev1); |
2455 | error = wacom_parse_and_register(wacom1, true); | |
a2f091af BT |
2456 | if (error) |
2457 | goto fail; | |
2458 | ||
2459 | /* Touch interface */ | |
2460 | if (wacom_wac1->features.touch_max || | |
2461 | (wacom_wac1->features.type >= INTUOSHT && | |
2462 | wacom_wac1->features.type <= BAMBOO_PT)) { | |
2463 | wacom_wac2->features = | |
2464 | *((struct wacom_features *)id->driver_data); | |
a2f091af | 2465 | wacom_wac2->pid = wacom_wac->pid; |
fd5f92b6 BT |
2466 | hid_hw_stop(hdev2); |
2467 | error = wacom_parse_and_register(wacom2, true); | |
a2f091af BT |
2468 | if (error) |
2469 | goto fail; | |
a2f091af BT |
2470 | } |
2471 | ||
9956953e BT |
2472 | strlcpy(wacom_wac->name, wacom_wac1->name, |
2473 | sizeof(wacom_wac->name)); | |
a2f091af BT |
2474 | error = wacom_initialize_battery(wacom); |
2475 | if (error) | |
2476 | goto fail; | |
2477 | } | |
2478 | ||
2479 | return; | |
2480 | ||
2481 | fail: | |
84dfbd7f | 2482 | wacom_release_resources(wacom1); |
84dfbd7f | 2483 | wacom_release_resources(wacom2); |
a2f091af BT |
2484 | return; |
2485 | } | |
2486 | ||
04bfa27b BT |
2487 | static void wacom_remote_destroy_one(struct wacom *wacom, unsigned int index) |
2488 | { | |
2489 | struct wacom_remote *remote = wacom->remote; | |
e7749f6e | 2490 | u32 serial = remote->remotes[index].serial; |
04bfa27b | 2491 | int i; |
7c35dc3c BT |
2492 | unsigned long flags; |
2493 | ||
791ae273 AAS |
2494 | for (i = 0; i < WACOM_MAX_REMOTES; i++) { |
2495 | if (remote->remotes[i].serial == serial) { | |
04bfa27b | 2496 | |
791ae273 AAS |
2497 | spin_lock_irqsave(&remote->remote_lock, flags); |
2498 | remote->remotes[i].registered = false; | |
2499 | spin_unlock_irqrestore(&remote->remote_lock, flags); | |
9f1015d4 | 2500 | |
791ae273 AAS |
2501 | if (remote->remotes[i].battery.battery) |
2502 | devres_release_group(&wacom->hdev->dev, | |
2503 | &remote->remotes[i].battery.bat_desc); | |
2504 | ||
2505 | if (remote->remotes[i].group.name) | |
2506 | devres_release_group(&wacom->hdev->dev, | |
2507 | &remote->remotes[i]); | |
04bfa27b | 2508 | |
e7749f6e BT |
2509 | remote->remotes[i].serial = 0; |
2510 | remote->remotes[i].group.name = NULL; | |
9f1015d4 | 2511 | remote->remotes[i].battery.battery = NULL; |
04bfa27b BT |
2512 | wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN; |
2513 | } | |
2514 | } | |
2515 | } | |
2516 | ||
2517 | static int wacom_remote_create_one(struct wacom *wacom, u32 serial, | |
2518 | unsigned int index) | |
2519 | { | |
2520 | struct wacom_remote *remote = wacom->remote; | |
f9036bd4 | 2521 | struct device *dev = &wacom->hdev->dev; |
04bfa27b BT |
2522 | int error, k; |
2523 | ||
2524 | /* A remote can pair more than once with an EKR, | |
2525 | * check to make sure this serial isn't already paired. | |
2526 | */ | |
2527 | for (k = 0; k < WACOM_MAX_REMOTES; k++) { | |
e7749f6e | 2528 | if (remote->remotes[k].serial == serial) |
04bfa27b BT |
2529 | break; |
2530 | } | |
2531 | ||
2532 | if (k < WACOM_MAX_REMOTES) { | |
e7749f6e | 2533 | remote->remotes[index].serial = serial; |
04bfa27b BT |
2534 | return 0; |
2535 | } | |
2536 | ||
e7749f6e | 2537 | if (!devres_open_group(dev, &remote->remotes[index], GFP_KERNEL)) |
f9036bd4 BT |
2538 | return -ENOMEM; |
2539 | ||
04bfa27b BT |
2540 | error = wacom_remote_create_attr_group(wacom, serial, index); |
2541 | if (error) | |
f9036bd4 | 2542 | goto fail; |
04bfa27b | 2543 | |
7c35dc3c BT |
2544 | remote->remotes[index].input = wacom_allocate_input(wacom); |
2545 | if (!remote->remotes[index].input) { | |
2546 | error = -ENOMEM; | |
2547 | goto fail; | |
2548 | } | |
2549 | remote->remotes[index].input->uniq = remote->remotes[index].group.name; | |
2550 | remote->remotes[index].input->name = wacom->wacom_wac.pad_name; | |
2551 | ||
2552 | if (!remote->remotes[index].input->name) { | |
2553 | error = -EINVAL; | |
2554 | goto fail; | |
2555 | } | |
2556 | ||
2557 | error = wacom_setup_pad_input_capabilities(remote->remotes[index].input, | |
2558 | &wacom->wacom_wac); | |
2559 | if (error) | |
2560 | goto fail; | |
2561 | ||
e7749f6e | 2562 | remote->remotes[index].serial = serial; |
04bfa27b | 2563 | |
7c35dc3c BT |
2564 | error = input_register_device(remote->remotes[index].input); |
2565 | if (error) | |
2566 | goto fail; | |
2567 | ||
97f5541f BT |
2568 | error = wacom_led_groups_alloc_and_register_one( |
2569 | &remote->remotes[index].input->dev, | |
2570 | wacom, index, 3, true); | |
2571 | if (error) | |
2572 | goto fail; | |
2573 | ||
7c35dc3c BT |
2574 | remote->remotes[index].registered = true; |
2575 | ||
e7749f6e | 2576 | devres_close_group(dev, &remote->remotes[index]); |
04bfa27b | 2577 | return 0; |
f9036bd4 BT |
2578 | |
2579 | fail: | |
e7749f6e BT |
2580 | devres_release_group(dev, &remote->remotes[index]); |
2581 | remote->remotes[index].serial = 0; | |
f9036bd4 | 2582 | return error; |
04bfa27b BT |
2583 | } |
2584 | ||
9f1015d4 BT |
2585 | static int wacom_remote_attach_battery(struct wacom *wacom, int index) |
2586 | { | |
2587 | struct wacom_remote *remote = wacom->remote; | |
2588 | int error; | |
2589 | ||
2590 | if (!remote->remotes[index].registered) | |
2591 | return 0; | |
2592 | ||
2593 | if (remote->remotes[index].battery.battery) | |
2594 | return 0; | |
2595 | ||
2596 | if (wacom->led.groups[index].select == WACOM_STATUS_UNKNOWN) | |
2597 | return 0; | |
2598 | ||
2599 | error = __wacom_initialize_battery(wacom, | |
2600 | &wacom->remote->remotes[index].battery); | |
2601 | if (error) | |
2602 | return error; | |
2603 | ||
2604 | return 0; | |
2605 | } | |
2606 | ||
e6f2813a BT |
2607 | static void wacom_remote_work(struct work_struct *work) |
2608 | { | |
2609 | struct wacom *wacom = container_of(work, struct wacom, remote_work); | |
83e6b40e | 2610 | struct wacom_remote *remote = wacom->remote; |
e6f2813a BT |
2611 | struct wacom_remote_data data; |
2612 | unsigned long flags; | |
2613 | unsigned int count; | |
2614 | u32 serial; | |
04bfa27b | 2615 | int i; |
e6f2813a | 2616 | |
83e6b40e | 2617 | spin_lock_irqsave(&remote->remote_lock, flags); |
e6f2813a | 2618 | |
83e6b40e | 2619 | count = kfifo_out(&remote->remote_fifo, &data, sizeof(data)); |
e6f2813a BT |
2620 | |
2621 | if (count != sizeof(data)) { | |
2622 | hid_err(wacom->hdev, | |
2623 | "workitem triggered without status available\n"); | |
83e6b40e | 2624 | spin_unlock_irqrestore(&remote->remote_lock, flags); |
e6f2813a BT |
2625 | return; |
2626 | } | |
2627 | ||
83e6b40e | 2628 | if (!kfifo_is_empty(&remote->remote_fifo)) |
e6f2813a BT |
2629 | wacom_schedule_work(&wacom->wacom_wac, WACOM_WORKER_REMOTE); |
2630 | ||
83e6b40e | 2631 | spin_unlock_irqrestore(&remote->remote_lock, flags); |
e6f2813a BT |
2632 | |
2633 | for (i = 0; i < WACOM_MAX_REMOTES; i++) { | |
2634 | serial = data.remote[i].serial; | |
2635 | if (data.remote[i].connected) { | |
2636 | ||
9f1015d4 BT |
2637 | if (remote->remotes[i].serial == serial) { |
2638 | wacom_remote_attach_battery(wacom, i); | |
e6f2813a | 2639 | continue; |
9f1015d4 | 2640 | } |
e6f2813a | 2641 | |
e7749f6e | 2642 | if (remote->remotes[i].serial) |
04bfa27b | 2643 | wacom_remote_destroy_one(wacom, i); |
e6f2813a | 2644 | |
04bfa27b | 2645 | wacom_remote_create_one(wacom, serial, i); |
e6f2813a | 2646 | |
e7749f6e | 2647 | } else if (remote->remotes[i].serial) { |
04bfa27b | 2648 | wacom_remote_destroy_one(wacom, i); |
e6f2813a BT |
2649 | } |
2650 | } | |
2651 | } | |
2652 | ||
4082da80 BT |
2653 | static void wacom_mode_change_work(struct work_struct *work) |
2654 | { | |
2655 | struct wacom *wacom = container_of(work, struct wacom, mode_change_work); | |
2656 | struct wacom_shared *shared = wacom->wacom_wac.shared; | |
2657 | struct wacom *wacom1 = NULL; | |
2658 | struct wacom *wacom2 = NULL; | |
2659 | bool is_direct = wacom->wacom_wac.is_direct_mode; | |
2660 | int error = 0; | |
2661 | ||
2662 | if (shared->pen) { | |
2663 | wacom1 = hid_get_drvdata(shared->pen); | |
2664 | wacom_release_resources(wacom1); | |
2665 | hid_hw_stop(wacom1->hdev); | |
2666 | wacom1->wacom_wac.has_mode_change = true; | |
2667 | wacom1->wacom_wac.is_direct_mode = is_direct; | |
2668 | } | |
2669 | ||
2670 | if (shared->touch) { | |
2671 | wacom2 = hid_get_drvdata(shared->touch); | |
2672 | wacom_release_resources(wacom2); | |
2673 | hid_hw_stop(wacom2->hdev); | |
2674 | wacom2->wacom_wac.has_mode_change = true; | |
2675 | wacom2->wacom_wac.is_direct_mode = is_direct; | |
2676 | } | |
2677 | ||
2678 | if (wacom1) { | |
2679 | error = wacom_parse_and_register(wacom1, false); | |
2680 | if (error) | |
2681 | return; | |
2682 | } | |
2683 | ||
2684 | if (wacom2) { | |
2685 | error = wacom_parse_and_register(wacom2, false); | |
2686 | if (error) | |
2687 | return; | |
2688 | } | |
2689 | ||
a2f091af BT |
2690 | return; |
2691 | } | |
2692 | ||
c58ac3a8 BT |
2693 | static int wacom_probe(struct hid_device *hdev, |
2694 | const struct hid_device_id *id) | |
2695 | { | |
2696 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); | |
2697 | struct usb_device *dev = interface_to_usbdev(intf); | |
2698 | struct wacom *wacom; | |
2699 | struct wacom_wac *wacom_wac; | |
2700 | struct wacom_features *features; | |
2701 | int error; | |
2702 | ||
2703 | if (!id->driver_data) | |
2704 | return -EINVAL; | |
2705 | ||
2706 | hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; | |
2707 | ||
2708 | /* hid-core sets this quirk for the boot interface */ | |
2709 | hdev->quirks &= ~HID_QUIRK_NOGET; | |
2710 | ||
19b64330 | 2711 | wacom = devm_kzalloc(&hdev->dev, sizeof(struct wacom), GFP_KERNEL); |
c58ac3a8 BT |
2712 | if (!wacom) |
2713 | return -ENOMEM; | |
2714 | ||
2715 | hid_set_drvdata(hdev, wacom); | |
2716 | wacom->hdev = hdev; | |
2717 | ||
2718 | wacom_wac = &wacom->wacom_wac; | |
2719 | wacom_wac->features = *((struct wacom_features *)id->driver_data); | |
2720 | features = &wacom_wac->features; | |
2721 | ||
362c571b BT |
2722 | if (features->check_for_hid_type && features->hid_type != hdev->type) |
2723 | return -ENODEV; | |
c58ac3a8 | 2724 | |
83417206 JG |
2725 | error = kfifo_alloc(&wacom_wac->pen_fifo, WACOM_PKGLEN_MAX, GFP_KERNEL); |
2726 | if (error) | |
362c571b | 2727 | return error; |
83417206 | 2728 | |
c6fa1aeb | 2729 | wacom_wac->hid_data.inputmode = -1; |
326ea2a9 | 2730 | wacom_wac->mode_report = -1; |
c6fa1aeb | 2731 | |
c58ac3a8 BT |
2732 | wacom->usbdev = dev; |
2733 | wacom->intf = intf; | |
2734 | mutex_init(&wacom->lock); | |
a544c619 | 2735 | INIT_DELAYED_WORK(&wacom->init_work, wacom_init_work); |
d17d1f17 BT |
2736 | INIT_WORK(&wacom->wireless_work, wacom_wireless_work); |
2737 | INIT_WORK(&wacom->battery_work, wacom_battery_work); | |
e6f2813a | 2738 | INIT_WORK(&wacom->remote_work, wacom_remote_work); |
4082da80 | 2739 | INIT_WORK(&wacom->mode_change_work, wacom_mode_change_work); |
c58ac3a8 BT |
2740 | |
2741 | /* ask for the report descriptor to be loaded by HID */ | |
2742 | error = hid_parse(hdev); | |
2743 | if (error) { | |
2744 | hid_err(hdev, "parse failed\n"); | |
362c571b | 2745 | return error; |
c58ac3a8 BT |
2746 | } |
2747 | ||
fd5f92b6 | 2748 | error = wacom_parse_and_register(wacom, false); |
c58ac3a8 | 2749 | if (error) |
362c571b | 2750 | return error; |
c58ac3a8 BT |
2751 | |
2752 | if (hdev->bus == BUS_BLUETOOTH) { | |
2753 | error = device_create_file(&hdev->dev, &dev_attr_speed); | |
2754 | if (error) | |
2755 | hid_warn(hdev, | |
2756 | "can't create sysfs speed attribute err: %d\n", | |
2757 | error); | |
2758 | } | |
2759 | ||
2760 | return 0; | |
3bea733a PC |
2761 | } |
2762 | ||
29b47391 | 2763 | static void wacom_remove(struct hid_device *hdev) |
3bea733a | 2764 | { |
29b47391 | 2765 | struct wacom *wacom = hid_get_drvdata(hdev); |
f6205161 BT |
2766 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; |
2767 | struct wacom_features *features = &wacom_wac->features; | |
2768 | ||
2769 | if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR) | |
2770 | hid_hw_close(hdev); | |
3bea733a | 2771 | |
29b47391 | 2772 | hid_hw_stop(hdev); |
e7224094 | 2773 | |
a544c619 | 2774 | cancel_delayed_work_sync(&wacom->init_work); |
d17d1f17 BT |
2775 | cancel_work_sync(&wacom->wireless_work); |
2776 | cancel_work_sync(&wacom->battery_work); | |
e6f2813a | 2777 | cancel_work_sync(&wacom->remote_work); |
4082da80 | 2778 | cancel_work_sync(&wacom->mode_change_work); |
f81a1295 BT |
2779 | if (hdev->bus == BUS_BLUETOOTH) |
2780 | device_remove_file(&hdev->dev, &dev_attr_speed); | |
e7224094 | 2781 | |
c0265a94 BT |
2782 | /* make sure we don't trigger the LEDs */ |
2783 | wacom_led_groups_release(wacom); | |
b6b1f19b AAS |
2784 | |
2785 | if (wacom->wacom_wac.features.type != REMOTE) | |
2786 | wacom_release_resources(wacom); | |
5b779fc5 | 2787 | |
83417206 | 2788 | kfifo_free(&wacom_wac->pen_fifo); |
e7224094 ON |
2789 | } |
2790 | ||
41a74581 | 2791 | #ifdef CONFIG_PM |
29b47391 | 2792 | static int wacom_resume(struct hid_device *hdev) |
e7224094 | 2793 | { |
29b47391 | 2794 | struct wacom *wacom = hid_get_drvdata(hdev); |
e7224094 ON |
2795 | |
2796 | mutex_lock(&wacom->lock); | |
38101475 PC |
2797 | |
2798 | /* switch to wacom mode first */ | |
a544c619 | 2799 | _wacom_query_tablet_data(wacom); |
5d7e7d47 | 2800 | wacom_led_control(wacom); |
38101475 | 2801 | |
e7224094 ON |
2802 | mutex_unlock(&wacom->lock); |
2803 | ||
29b47391 | 2804 | return 0; |
e7224094 ON |
2805 | } |
2806 | ||
29b47391 | 2807 | static int wacom_reset_resume(struct hid_device *hdev) |
e7224094 | 2808 | { |
29b47391 | 2809 | return wacom_resume(hdev); |
3bea733a | 2810 | } |
41a74581 | 2811 | #endif /* CONFIG_PM */ |
3bea733a | 2812 | |
29b47391 | 2813 | static struct hid_driver wacom_driver = { |
3bea733a | 2814 | .name = "wacom", |
b036f6fb | 2815 | .id_table = wacom_ids, |
3bea733a | 2816 | .probe = wacom_probe, |
29b47391 | 2817 | .remove = wacom_remove, |
7704ac93 | 2818 | .report = wacom_wac_report, |
29b47391 | 2819 | #ifdef CONFIG_PM |
e7224094 ON |
2820 | .resume = wacom_resume, |
2821 | .reset_resume = wacom_reset_resume, | |
29b47391 BT |
2822 | #endif |
2823 | .raw_event = wacom_raw_event, | |
3bea733a | 2824 | }; |
29b47391 | 2825 | module_hid_driver(wacom_driver); |
f2e0a7d4 BT |
2826 | |
2827 | MODULE_VERSION(DRIVER_VERSION); | |
2828 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
2829 | MODULE_DESCRIPTION(DRIVER_DESC); | |
7021b600 | 2830 | MODULE_LICENSE("GPL"); |