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, | |
91 | struct hid_report *report, u8 *raw_data, int size) | |
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) | |
152 | wacom_wac_queue_insert(hdev, &wacom_wac->pen_fifo, raw_data, size); | |
153 | ||
154 | return insert && !flush; | |
155 | } | |
156 | ||
29b47391 BT |
157 | static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report, |
158 | u8 *raw_data, int size) | |
3bea733a | 159 | { |
29b47391 | 160 | struct wacom *wacom = hid_get_drvdata(hdev); |
3bea733a | 161 | |
29b47391 BT |
162 | if (size > WACOM_PKGLEN_MAX) |
163 | return 1; | |
3bea733a | 164 | |
83417206 JG |
165 | if (wacom_wac_pen_serial_enforce(hdev, report, raw_data, size)) |
166 | return -1; | |
167 | ||
29b47391 | 168 | memcpy(wacom->wacom_wac.data, raw_data, size); |
3bea733a | 169 | |
29b47391 BT |
170 | wacom_wac_irq(&wacom->wacom_wac, size); |
171 | ||
172 | return 0; | |
3bea733a PC |
173 | } |
174 | ||
3bea733a PC |
175 | static int wacom_open(struct input_dev *dev) |
176 | { | |
7791bdae | 177 | struct wacom *wacom = input_get_drvdata(dev); |
29b47391 | 178 | |
dff67416 | 179 | return hid_hw_open(wacom->hdev); |
3bea733a PC |
180 | } |
181 | ||
182 | static void wacom_close(struct input_dev *dev) | |
183 | { | |
7791bdae | 184 | struct wacom *wacom = input_get_drvdata(dev); |
3bea733a | 185 | |
3dad188e BT |
186 | /* |
187 | * wacom->hdev should never be null, but surprisingly, I had the case | |
188 | * once while unplugging the Wacom Wireless Receiver. | |
189 | */ | |
190 | if (wacom->hdev) | |
191 | hid_hw_close(wacom->hdev); | |
3bea733a PC |
192 | } |
193 | ||
115d5e12 | 194 | /* |
198fdee2 | 195 | * Calculate the resolution of the X or Y axis using hidinput_calc_abs_res. |
115d5e12 JG |
196 | */ |
197 | static int wacom_calc_hid_res(int logical_extents, int physical_extents, | |
c669fb2b | 198 | unsigned unit, int exponent) |
115d5e12 | 199 | { |
198fdee2 BT |
200 | struct hid_field field = { |
201 | .logical_maximum = logical_extents, | |
202 | .physical_maximum = physical_extents, | |
203 | .unit = unit, | |
204 | .unit_exponent = exponent, | |
205 | }; | |
206 | ||
207 | return hidinput_calc_abs_res(&field, ABS_X); | |
115d5e12 JG |
208 | } |
209 | ||
57832512 JG |
210 | static void wacom_hid_usage_quirk(struct hid_device *hdev, |
211 | struct hid_field *field, struct hid_usage *usage) | |
212 | { | |
213 | struct wacom *wacom = hid_get_drvdata(hdev); | |
214 | struct wacom_features *features = &wacom->wacom_wac.features; | |
215 | unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid); | |
216 | ||
217 | /* | |
218 | * The Dell Canvas 27 needs to be switched to its vendor-defined | |
219 | * report to provide the best resolution. | |
220 | */ | |
221 | if (hdev->vendor == USB_VENDOR_ID_WACOM && | |
222 | hdev->product == 0x4200 && | |
223 | field->application == HID_UP_MSVENDOR) { | |
224 | wacom->wacom_wac.mode_report = field->report->id; | |
225 | wacom->wacom_wac.mode_value = 2; | |
226 | } | |
227 | ||
228 | /* | |
229 | * ISDv4 devices which predate HID's adoption of the | |
230 | * HID_DG_BARELSWITCH2 usage use 0x000D0000 in its | |
231 | * position instead. We can accurately detect if a | |
232 | * usage with that value should be HID_DG_BARRELSWITCH2 | |
233 | * based on the surrounding usages, which have remained | |
234 | * constant across generations. | |
235 | */ | |
236 | if (features->type == HID_GENERIC && | |
237 | usage->hid == 0x000D0000 && | |
238 | field->application == HID_DG_PEN && | |
239 | field->physical == HID_DG_STYLUS) { | |
240 | int i = usage->usage_index; | |
241 | ||
242 | if (i-4 >= 0 && i+1 < field->maxusage && | |
243 | field->usage[i-4].hid == HID_DG_TIPSWITCH && | |
244 | field->usage[i-3].hid == HID_DG_BARRELSWITCH && | |
245 | field->usage[i-2].hid == HID_DG_ERASER && | |
246 | field->usage[i-1].hid == HID_DG_INVERT && | |
247 | field->usage[i+1].hid == HID_DG_INRANGE) { | |
248 | usage->hid = HID_DG_BARRELSWITCH2; | |
249 | } | |
250 | } | |
251 | ||
e9fe0d49 JG |
252 | /* |
253 | * Wacom's AES devices use different vendor-defined usages to | |
254 | * report serial number information compared to their branded | |
255 | * hardware. The usages are also sometimes ill-defined and do | |
256 | * not have the correct logical min/max values set. Lets patch | |
257 | * the descriptor to use the branded usage convention and fix | |
258 | * the errors. | |
259 | */ | |
260 | if (usage->hid == WACOM_HID_WT_SERIALNUMBER && | |
261 | field->report_size == 16 && | |
262 | field->index + 2 < field->report->maxfield) { | |
263 | struct hid_field *a = field->report->field[field->index + 1]; | |
264 | struct hid_field *b = field->report->field[field->index + 2]; | |
265 | ||
266 | if (a->maxusage > 0 && | |
267 | a->usage[0].hid == HID_DG_TOOLSERIALNUMBER && | |
268 | a->report_size == 32 && | |
269 | b->maxusage > 0 && | |
270 | b->usage[0].hid == 0xFF000000 && | |
271 | b->report_size == 8) { | |
272 | features->quirks |= WACOM_QUIRK_AESPEN; | |
273 | usage->hid = WACOM_HID_WD_TOOLTYPE; | |
274 | field->logical_minimum = S16_MIN; | |
275 | field->logical_maximum = S16_MAX; | |
276 | a->logical_minimum = S32_MIN; | |
277 | a->logical_maximum = S32_MAX; | |
278 | b->usage[0].hid = WACOM_HID_WD_SERIALHI; | |
279 | b->logical_minimum = 0; | |
280 | b->logical_maximum = U8_MAX; | |
281 | } | |
282 | } | |
283 | ||
57832512 JG |
284 | /* 2nd-generation Intuos Pro Large has incorrect Y maximum */ |
285 | if (hdev->vendor == USB_VENDOR_ID_WACOM && | |
286 | hdev->product == 0x0358 && | |
287 | WACOM_PEN_FIELD(field) && | |
288 | equivalent_usage == HID_GD_Y) { | |
289 | field->logical_maximum = 43200; | |
290 | } | |
291 | } | |
292 | ||
c669fb2b BT |
293 | static void wacom_feature_mapping(struct hid_device *hdev, |
294 | struct hid_field *field, struct hid_usage *usage) | |
f393ee2b | 295 | { |
c669fb2b BT |
296 | struct wacom *wacom = hid_get_drvdata(hdev); |
297 | struct wacom_features *features = &wacom->wacom_wac.features; | |
5ae6e89f | 298 | struct hid_data *hid_data = &wacom->wacom_wac.hid_data; |
ac2423c9 | 299 | unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid); |
8ffffd52 BT |
300 | u8 *data; |
301 | int ret; | |
3064a03b | 302 | u32 n; |
f393ee2b | 303 | |
57832512 JG |
304 | wacom_hid_usage_quirk(hdev, field, usage); |
305 | ||
ac2423c9 | 306 | switch (equivalent_usage) { |
c669fb2b BT |
307 | case HID_DG_CONTACTMAX: |
308 | /* leave touch_max as is if predefined */ | |
8ffffd52 BT |
309 | if (!features->touch_max) { |
310 | /* read manually */ | |
311 | data = kzalloc(2, GFP_KERNEL); | |
312 | if (!data) | |
313 | break; | |
314 | data[0] = field->report->id; | |
315 | ret = wacom_get_report(hdev, HID_FEATURE_REPORT, | |
05e8fd92 JG |
316 | data, 2, WAC_CMD_RETRIES); |
317 | if (ret == 2) { | |
8ffffd52 | 318 | features->touch_max = data[1]; |
05e8fd92 JG |
319 | } else { |
320 | features->touch_max = 16; | |
321 | hid_warn(hdev, "wacom_feature_mapping: " | |
322 | "could not get HID_DG_CONTACTMAX, " | |
323 | "defaulting to %d\n", | |
324 | features->touch_max); | |
325 | } | |
8ffffd52 BT |
326 | kfree(data); |
327 | } | |
c669fb2b | 328 | break; |
5ae6e89f BT |
329 | case HID_DG_INPUTMODE: |
330 | /* Ignore if value index is out of bounds. */ | |
331 | if (usage->usage_index >= field->report_count) { | |
332 | dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); | |
333 | break; | |
334 | } | |
335 | ||
336 | hid_data->inputmode = field->report->id; | |
337 | hid_data->inputmode_index = usage->usage_index; | |
338 | break; | |
326ea2a9 JG |
339 | |
340 | case HID_UP_DIGITIZER: | |
341 | if (field->report->id == 0x0B && | |
8de82280 JG |
342 | (field->application == WACOM_HID_G9_PEN || |
343 | field->application == WACOM_HID_G11_PEN)) { | |
326ea2a9 JG |
344 | wacom->wacom_wac.mode_report = field->report->id; |
345 | wacom->wacom_wac.mode_value = 0; | |
346 | } | |
347 | break; | |
348 | ||
c9c09587 JG |
349 | case WACOM_HID_WD_DATAMODE: |
350 | wacom->wacom_wac.mode_report = field->report->id; | |
351 | wacom->wacom_wac.mode_value = 2; | |
352 | break; | |
353 | ||
8de82280 JG |
354 | case WACOM_HID_UP_G9: |
355 | case WACOM_HID_UP_G11: | |
326ea2a9 | 356 | if (field->report->id == 0x03 && |
8de82280 JG |
357 | (field->application == WACOM_HID_G9_TOUCHSCREEN || |
358 | field->application == WACOM_HID_G11_TOUCHSCREEN)) { | |
326ea2a9 JG |
359 | wacom->wacom_wac.mode_report = field->report->id; |
360 | wacom->wacom_wac.mode_value = 0; | |
361 | } | |
362 | break; | |
345857bb JG |
363 | case WACOM_HID_WD_OFFSETLEFT: |
364 | case WACOM_HID_WD_OFFSETTOP: | |
365 | case WACOM_HID_WD_OFFSETRIGHT: | |
366 | case WACOM_HID_WD_OFFSETBOTTOM: | |
367 | /* read manually */ | |
368 | n = hid_report_len(field->report); | |
369 | data = hid_alloc_report_buf(field->report, GFP_KERNEL); | |
370 | if (!data) | |
371 | break; | |
372 | data[0] = field->report->id; | |
373 | ret = wacom_get_report(hdev, HID_FEATURE_REPORT, | |
374 | data, n, WAC_CMD_RETRIES); | |
375 | if (ret == n) { | |
376 | ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, | |
377 | data, n, 0); | |
378 | } else { | |
379 | hid_warn(hdev, "%s: could not retrieve sensor offsets\n", | |
380 | __func__); | |
381 | } | |
382 | kfree(data); | |
383 | break; | |
f393ee2b PC |
384 | } |
385 | } | |
386 | ||
428f8588 CB |
387 | /* |
388 | * Interface Descriptor of wacom devices can be incomplete and | |
389 | * inconsistent so wacom_features table is used to store stylus | |
390 | * device's packet lengths, various maximum values, and tablet | |
391 | * resolution based on product ID's. | |
392 | * | |
393 | * For devices that contain 2 interfaces, wacom_features table is | |
394 | * inaccurate for the touch interface. Since the Interface Descriptor | |
395 | * for touch interfaces has pretty complete data, this function exists | |
396 | * to query tablet for this missing information instead of hard coding in | |
397 | * an additional table. | |
398 | * | |
399 | * A typical Interface Descriptor for a stylus will contain a | |
400 | * boot mouse application collection that is not of interest and this | |
401 | * function will ignore it. | |
402 | * | |
403 | * It also contains a digitizer application collection that also is not | |
404 | * of interest since any information it contains would be duplicate | |
405 | * of what is in wacom_features. Usually it defines a report of an array | |
406 | * of bytes that could be used as max length of the stylus packet returned. | |
407 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
408 | * the X and Y logical values contain valid data but it is ignored. | |
409 | * | |
410 | * A typical Interface Descriptor for a touch interface will contain a | |
411 | * Digitizer-Finger Physical Collection which will define both logical | |
412 | * X/Y maximum as well as the physical size of tablet. Since touch | |
413 | * interfaces haven't supported pressure or distance, this is enough | |
414 | * information to override invalid values in the wacom_features table. | |
4134361a | 415 | * |
c669fb2b BT |
416 | * Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful |
417 | * data. We deal with them after returning from this function. | |
428f8588 | 418 | */ |
c669fb2b BT |
419 | static void wacom_usage_mapping(struct hid_device *hdev, |
420 | struct hid_field *field, struct hid_usage *usage) | |
545f4e99 | 421 | { |
c669fb2b BT |
422 | struct wacom *wacom = hid_get_drvdata(hdev); |
423 | struct wacom_features *features = &wacom->wacom_wac.features; | |
d97a5522 BT |
424 | bool finger = WACOM_FINGER_FIELD(field); |
425 | bool pen = WACOM_PEN_FIELD(field); | |
418b573b | 426 | unsigned equivalent_usage = wacom_equivalent_usage(usage->hid); |
e9fc413f | 427 | |
c669fb2b BT |
428 | /* |
429 | * Requiring Stylus Usage will ignore boot mouse | |
430 | * X/Y values and some cases of invalid Digitizer X/Y | |
431 | * values commonly reported. | |
432 | */ | |
042628ab | 433 | if (pen) |
aa86b18c | 434 | features->device_type |= WACOM_DEVICETYPE_PEN; |
042628ab | 435 | else if (finger) |
aa86b18c | 436 | features->device_type |= WACOM_DEVICETYPE_TOUCH; |
042628ab | 437 | else |
c669fb2b BT |
438 | return; |
439 | ||
57832512 | 440 | wacom_hid_usage_quirk(hdev, field, usage); |
d471b6b2 | 441 | |
418b573b | 442 | switch (equivalent_usage) { |
c669fb2b BT |
443 | case HID_GD_X: |
444 | features->x_max = field->logical_maximum; | |
445 | if (finger) { | |
c669fb2b | 446 | features->x_phy = field->physical_maximum; |
3b164a00 PC |
447 | if ((features->type != BAMBOO_PT) && |
448 | (features->type != BAMBOO_TOUCH)) { | |
c669fb2b BT |
449 | features->unit = field->unit; |
450 | features->unitExpo = field->unit_exponent; | |
545f4e99 | 451 | } |
c669fb2b BT |
452 | } |
453 | break; | |
454 | case HID_GD_Y: | |
455 | features->y_max = field->logical_maximum; | |
456 | if (finger) { | |
457 | features->y_phy = field->physical_maximum; | |
3b164a00 PC |
458 | if ((features->type != BAMBOO_PT) && |
459 | (features->type != BAMBOO_TOUCH)) { | |
c669fb2b BT |
460 | features->unit = field->unit; |
461 | features->unitExpo = field->unit_exponent; | |
462 | } | |
463 | } | |
464 | break; | |
465 | case HID_DG_TIPPRESSURE: | |
466 | if (pen) | |
467 | features->pressure_max = field->logical_maximum; | |
468 | break; | |
469 | } | |
7704ac93 BT |
470 | |
471 | if (features->type == HID_GENERIC) | |
472 | wacom_wac_usage_mapping(hdev, field, usage); | |
c669fb2b | 473 | } |
4134361a | 474 | |
b58ba1ba JG |
475 | static void wacom_post_parse_hid(struct hid_device *hdev, |
476 | struct wacom_features *features) | |
477 | { | |
478 | struct wacom *wacom = hid_get_drvdata(hdev); | |
479 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
480 | ||
481 | if (features->type == HID_GENERIC) { | |
482 | /* Any last-minute generic device setup */ | |
4082da80 BT |
483 | if (wacom_wac->has_mode_change) { |
484 | if (wacom_wac->is_direct_mode) | |
485 | features->device_type |= WACOM_DEVICETYPE_DIRECT; | |
486 | else | |
487 | features->device_type &= ~WACOM_DEVICETYPE_DIRECT; | |
488 | } | |
489 | ||
b58ba1ba | 490 | if (features->touch_max > 1) { |
ac2423c9 AAS |
491 | if (features->device_type & WACOM_DEVICETYPE_DIRECT) |
492 | input_mt_init_slots(wacom_wac->touch_input, | |
493 | wacom_wac->features.touch_max, | |
494 | INPUT_MT_DIRECT); | |
495 | else | |
496 | input_mt_init_slots(wacom_wac->touch_input, | |
497 | wacom_wac->features.touch_max, | |
498 | INPUT_MT_POINTER); | |
b58ba1ba JG |
499 | } |
500 | } | |
501 | } | |
502 | ||
c669fb2b BT |
503 | static void wacom_parse_hid(struct hid_device *hdev, |
504 | struct wacom_features *features) | |
505 | { | |
506 | struct hid_report_enum *rep_enum; | |
507 | struct hid_report *hreport; | |
508 | int i, j; | |
509 | ||
510 | /* check features first */ | |
511 | rep_enum = &hdev->report_enum[HID_FEATURE_REPORT]; | |
512 | list_for_each_entry(hreport, &rep_enum->report_list, list) { | |
513 | for (i = 0; i < hreport->maxfield; i++) { | |
514 | /* Ignore if report count is out of bounds. */ | |
515 | if (hreport->field[i]->report_count < 1) | |
516 | continue; | |
517 | ||
518 | for (j = 0; j < hreport->field[i]->maxusage; j++) { | |
519 | wacom_feature_mapping(hdev, hreport->field[i], | |
520 | hreport->field[i]->usage + j); | |
4134361a | 521 | } |
545f4e99 PC |
522 | } |
523 | } | |
524 | ||
c669fb2b BT |
525 | /* now check the input usages */ |
526 | rep_enum = &hdev->report_enum[HID_INPUT_REPORT]; | |
527 | list_for_each_entry(hreport, &rep_enum->report_list, list) { | |
528 | ||
529 | if (!hreport->maxfield) | |
530 | continue; | |
531 | ||
532 | for (i = 0; i < hreport->maxfield; i++) | |
533 | for (j = 0; j < hreport->field[i]->maxusage; j++) | |
534 | wacom_usage_mapping(hdev, hreport->field[i], | |
535 | hreport->field[i]->usage + j); | |
536 | } | |
b58ba1ba JG |
537 | |
538 | wacom_post_parse_hid(hdev, features); | |
545f4e99 PC |
539 | } |
540 | ||
5ae6e89f BT |
541 | static int wacom_hid_set_device_mode(struct hid_device *hdev) |
542 | { | |
543 | struct wacom *wacom = hid_get_drvdata(hdev); | |
544 | struct hid_data *hid_data = &wacom->wacom_wac.hid_data; | |
545 | struct hid_report *r; | |
546 | struct hid_report_enum *re; | |
547 | ||
548 | if (hid_data->inputmode < 0) | |
549 | return 0; | |
550 | ||
551 | re = &(hdev->report_enum[HID_FEATURE_REPORT]); | |
552 | r = re->report_id_hash[hid_data->inputmode]; | |
553 | if (r) { | |
554 | r->field[0]->value[hid_data->inputmode_index] = 2; | |
555 | hid_hw_request(hdev, r, HID_REQ_SET_REPORT); | |
556 | } | |
557 | return 0; | |
558 | } | |
559 | ||
326ea2a9 JG |
560 | static int wacom_set_device_mode(struct hid_device *hdev, |
561 | struct wacom_wac *wacom_wac) | |
3b7307c2 | 562 | { |
326ea2a9 JG |
563 | u8 *rep_data; |
564 | struct hid_report *r; | |
565 | struct hid_report_enum *re; | |
3064a03b | 566 | u32 length; |
fe494bc2 | 567 | int error = -ENOMEM, limit = 0; |
3b7307c2 | 568 | |
326ea2a9 JG |
569 | if (wacom_wac->mode_report < 0) |
570 | return 0; | |
571 | ||
572 | re = &(hdev->report_enum[HID_FEATURE_REPORT]); | |
573 | r = re->report_id_hash[wacom_wac->mode_report]; | |
574 | if (!r) | |
575 | return -EINVAL; | |
576 | ||
577 | rep_data = hid_alloc_report_buf(r, GFP_KERNEL); | |
3b7307c2 | 578 | if (!rep_data) |
326ea2a9 JG |
579 | return -ENOMEM; |
580 | ||
581 | length = hid_report_len(r); | |
ec67bbed | 582 | |
fe494bc2 | 583 | do { |
326ea2a9 JG |
584 | rep_data[0] = wacom_wac->mode_report; |
585 | rep_data[1] = wacom_wac->mode_value; | |
9937c026 | 586 | |
296b7378 PF |
587 | error = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, |
588 | length, 1); | |
3cb83157 | 589 | if (error >= 0) |
27b20a9d | 590 | error = wacom_get_report(hdev, HID_FEATURE_REPORT, |
c64d8834 | 591 | rep_data, length, 1); |
326ea2a9 JG |
592 | } while (error >= 0 && |
593 | rep_data[1] != wacom_wac->mode_report && | |
594 | limit++ < WAC_MSG_RETRIES); | |
fe494bc2 JG |
595 | |
596 | kfree(rep_data); | |
597 | ||
598 | return error < 0 ? error : 0; | |
599 | } | |
600 | ||
f81a1295 BT |
601 | static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed, |
602 | struct wacom_features *features) | |
603 | { | |
387142bb BT |
604 | struct wacom *wacom = hid_get_drvdata(hdev); |
605 | int ret; | |
606 | u8 rep_data[2]; | |
607 | ||
608 | switch (features->type) { | |
609 | case GRAPHIRE_BT: | |
610 | rep_data[0] = 0x03; | |
611 | rep_data[1] = 0x00; | |
296b7378 PF |
612 | ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2, |
613 | 3); | |
387142bb BT |
614 | |
615 | if (ret >= 0) { | |
616 | rep_data[0] = speed == 0 ? 0x05 : 0x06; | |
617 | rep_data[1] = 0x00; | |
618 | ||
619 | ret = wacom_set_report(hdev, HID_FEATURE_REPORT, | |
296b7378 | 620 | rep_data, 2, 3); |
387142bb BT |
621 | |
622 | if (ret >= 0) { | |
623 | wacom->wacom_wac.bt_high_speed = speed; | |
624 | return 0; | |
625 | } | |
626 | } | |
627 | ||
628 | /* | |
629 | * Note that if the raw queries fail, it's not a hard failure | |
630 | * and it is safe to continue | |
631 | */ | |
632 | hid_warn(hdev, "failed to poke device, command %d, err %d\n", | |
633 | rep_data[0], ret); | |
634 | break; | |
81af7e61 BT |
635 | case INTUOS4WL: |
636 | if (speed == 1) | |
637 | wacom->wacom_wac.bt_features &= ~0x20; | |
638 | else | |
639 | wacom->wacom_wac.bt_features |= 0x20; | |
640 | ||
641 | rep_data[0] = 0x03; | |
642 | rep_data[1] = wacom->wacom_wac.bt_features; | |
643 | ||
296b7378 PF |
644 | ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2, |
645 | 1); | |
81af7e61 BT |
646 | if (ret >= 0) |
647 | wacom->wacom_wac.bt_high_speed = speed; | |
648 | break; | |
387142bb BT |
649 | } |
650 | ||
f81a1295 BT |
651 | return 0; |
652 | } | |
653 | ||
fe494bc2 JG |
654 | /* |
655 | * Switch the tablet into its most-capable mode. Wacom tablets are | |
656 | * typically configured to power-up in a mode which sends mouse-like | |
657 | * reports to the OS. To get absolute position, pressure data, etc. | |
658 | * from the tablet, it is necessary to switch the tablet out of this | |
659 | * mode and into one which sends the full range of tablet data. | |
660 | */ | |
a544c619 | 661 | static int _wacom_query_tablet_data(struct wacom *wacom) |
fe494bc2 | 662 | { |
a544c619 | 663 | struct hid_device *hdev = wacom->hdev; |
326ea2a9 | 664 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; |
a544c619 | 665 | struct wacom_features *features = &wacom_wac->features; |
326ea2a9 | 666 | |
f81a1295 BT |
667 | if (hdev->bus == BUS_BLUETOOTH) |
668 | return wacom_bt_query_tablet_data(hdev, 1, features); | |
669 | ||
326ea2a9 JG |
670 | if (features->type != HID_GENERIC) { |
671 | if (features->device_type & WACOM_DEVICETYPE_TOUCH) { | |
672 | if (features->type > TABLETPC) { | |
673 | /* MT Tablet PC touch */ | |
674 | wacom_wac->mode_report = 3; | |
675 | wacom_wac->mode_value = 4; | |
676 | } else if (features->type == WACOM_24HDT) { | |
677 | wacom_wac->mode_report = 18; | |
678 | wacom_wac->mode_value = 2; | |
679 | } else if (features->type == WACOM_27QHDT) { | |
680 | wacom_wac->mode_report = 131; | |
681 | wacom_wac->mode_value = 2; | |
682 | } else if (features->type == BAMBOO_PAD) { | |
683 | wacom_wac->mode_report = 2; | |
684 | wacom_wac->mode_value = 2; | |
685 | } | |
686 | } else if (features->device_type & WACOM_DEVICETYPE_PEN) { | |
687 | if (features->type <= BAMBOO_PT) { | |
688 | wacom_wac->mode_report = 2; | |
689 | wacom_wac->mode_value = 2; | |
690 | } | |
1963518b | 691 | } |
ec67bbed | 692 | } |
3b7307c2 | 693 | |
326ea2a9 JG |
694 | wacom_set_device_mode(hdev, wacom_wac); |
695 | ||
696 | if (features->type == HID_GENERIC) | |
697 | return wacom_hid_set_device_mode(hdev); | |
698 | ||
fe494bc2 | 699 | return 0; |
3b7307c2 DT |
700 | } |
701 | ||
c669fb2b | 702 | static void wacom_retrieve_hid_descriptor(struct hid_device *hdev, |
1963518b | 703 | struct wacom_features *features) |
ec67bbed | 704 | { |
27b20a9d BT |
705 | struct wacom *wacom = hid_get_drvdata(hdev); |
706 | struct usb_interface *intf = wacom->intf; | |
ec67bbed | 707 | |
fed87e65 | 708 | /* default features */ |
fed87e65 HR |
709 | features->x_fuzz = 4; |
710 | features->y_fuzz = 4; | |
711 | features->pressure_fuzz = 0; | |
bef7e200 JG |
712 | features->distance_fuzz = 1; |
713 | features->tilt_fuzz = 1; | |
ec67bbed | 714 | |
d3825d51 CB |
715 | /* |
716 | * The wireless device HID is basic and layout conflicts with | |
717 | * other tablets (monitor and touch interface can look like pen). | |
718 | * Skip the query for this type and modify defaults based on | |
719 | * interface number. | |
720 | */ | |
721 | if (features->type == WIRELESS) { | |
3f14a63a | 722 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) |
ccad85cc | 723 | features->device_type = WACOM_DEVICETYPE_WL_MONITOR; |
3f14a63a | 724 | else |
aa86b18c | 725 | features->device_type = WACOM_DEVICETYPE_NONE; |
3f14a63a | 726 | return; |
d3825d51 CB |
727 | } |
728 | ||
c669fb2b | 729 | wacom_parse_hid(hdev, features); |
ec67bbed PC |
730 | } |
731 | ||
4451e088 | 732 | struct wacom_hdev_data { |
4492efff PC |
733 | struct list_head list; |
734 | struct kref kref; | |
4451e088 | 735 | struct hid_device *dev; |
4492efff PC |
736 | struct wacom_shared shared; |
737 | }; | |
738 | ||
739 | static LIST_HEAD(wacom_udev_list); | |
740 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
741 | ||
4451e088 BT |
742 | static bool wacom_are_sibling(struct hid_device *hdev, |
743 | struct hid_device *sibling) | |
aea2bf6a | 744 | { |
4451e088 BT |
745 | struct wacom *wacom = hid_get_drvdata(hdev); |
746 | struct wacom_features *features = &wacom->wacom_wac.features; | |
41372d5d JG |
747 | struct wacom *sibling_wacom = hid_get_drvdata(sibling); |
748 | struct wacom_features *sibling_features = &sibling_wacom->wacom_wac.features; | |
749 | __u32 oVid = features->oVid ? features->oVid : hdev->vendor; | |
750 | __u32 oPid = features->oPid ? features->oPid : hdev->product; | |
4451e088 | 751 | |
41372d5d JG |
752 | /* The defined oVid/oPid must match that of the sibling */ |
753 | if (features->oVid != HID_ANY_ID && sibling->vendor != oVid) | |
754 | return false; | |
755 | if (features->oPid != HID_ANY_ID && sibling->product != oPid) | |
756 | return false; | |
757 | ||
758 | /* | |
759 | * Devices with the same VID/PID must share the same physical | |
760 | * device path, while those with different VID/PID must share | |
761 | * the same physical parent device path. | |
762 | */ | |
763 | if (hdev->vendor == sibling->vendor && hdev->product == sibling->product) { | |
1a8861f1 | 764 | if (!hid_compare_device_paths(hdev, sibling, '/')) |
41372d5d JG |
765 | return false; |
766 | } else { | |
1a8861f1 | 767 | if (!hid_compare_device_paths(hdev, sibling, '.')) |
41372d5d | 768 | return false; |
4451e088 | 769 | } |
aea2bf6a | 770 | |
41372d5d JG |
771 | /* Skip the remaining heuristics unless you are a HID_GENERIC device */ |
772 | if (features->type != HID_GENERIC) | |
773 | return true; | |
774 | ||
775 | /* | |
776 | * Direct-input devices may not be siblings of indirect-input | |
777 | * devices. | |
778 | */ | |
779 | if ((features->device_type & WACOM_DEVICETYPE_DIRECT) && | |
780 | !(sibling_features->device_type & WACOM_DEVICETYPE_DIRECT)) | |
4451e088 | 781 | return false; |
aea2bf6a | 782 | |
41372d5d JG |
783 | /* |
784 | * Indirect-input devices may not be siblings of direct-input | |
785 | * devices. | |
786 | */ | |
787 | if (!(features->device_type & WACOM_DEVICETYPE_DIRECT) && | |
788 | (sibling_features->device_type & WACOM_DEVICETYPE_DIRECT)) | |
4451e088 | 789 | return false; |
aea2bf6a | 790 | |
41372d5d JG |
791 | /* Pen devices may only be siblings of touch devices */ |
792 | if ((features->device_type & WACOM_DEVICETYPE_PEN) && | |
793 | !(sibling_features->device_type & WACOM_DEVICETYPE_TOUCH)) | |
794 | return false; | |
795 | ||
796 | /* Touch devices may only be siblings of pen devices */ | |
797 | if ((features->device_type & WACOM_DEVICETYPE_TOUCH) && | |
798 | !(sibling_features->device_type & WACOM_DEVICETYPE_PEN)) | |
799 | return false; | |
800 | ||
801 | /* | |
802 | * No reason could be found for these two devices to NOT be | |
803 | * siblings, so there's a good chance they ARE siblings | |
804 | */ | |
805 | return true; | |
aea2bf6a JG |
806 | } |
807 | ||
4451e088 | 808 | static struct wacom_hdev_data *wacom_get_hdev_data(struct hid_device *hdev) |
4492efff | 809 | { |
4451e088 | 810 | struct wacom_hdev_data *data; |
4492efff | 811 | |
41372d5d JG |
812 | /* Try to find an already-probed interface from the same device */ |
813 | list_for_each_entry(data, &wacom_udev_list, list) { | |
1a8861f1 | 814 | if (hid_compare_device_paths(hdev, data->dev, '/')) { |
2a5e597c | 815 | kref_get(&data->kref); |
41372d5d | 816 | return data; |
2a5e597c | 817 | } |
41372d5d JG |
818 | } |
819 | ||
820 | /* Fallback to finding devices that appear to be "siblings" */ | |
4492efff | 821 | list_for_each_entry(data, &wacom_udev_list, list) { |
4451e088 | 822 | if (wacom_are_sibling(hdev, data->dev)) { |
4492efff PC |
823 | kref_get(&data->kref); |
824 | return data; | |
825 | } | |
826 | } | |
827 | ||
828 | return NULL; | |
829 | } | |
830 | ||
1c817c83 BT |
831 | static void wacom_release_shared_data(struct kref *kref) |
832 | { | |
833 | struct wacom_hdev_data *data = | |
834 | container_of(kref, struct wacom_hdev_data, kref); | |
835 | ||
836 | mutex_lock(&wacom_udev_list_lock); | |
837 | list_del(&data->list); | |
838 | mutex_unlock(&wacom_udev_list_lock); | |
839 | ||
840 | kfree(data); | |
841 | } | |
842 | ||
843 | static void wacom_remove_shared_data(void *res) | |
844 | { | |
845 | struct wacom *wacom = res; | |
846 | struct wacom_hdev_data *data; | |
847 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
848 | ||
849 | if (wacom_wac->shared) { | |
850 | data = container_of(wacom_wac->shared, struct wacom_hdev_data, | |
851 | shared); | |
852 | ||
853 | if (wacom_wac->shared->touch == wacom->hdev) | |
854 | wacom_wac->shared->touch = NULL; | |
855 | else if (wacom_wac->shared->pen == wacom->hdev) | |
856 | wacom_wac->shared->pen = NULL; | |
857 | ||
858 | kref_put(&data->kref, wacom_release_shared_data); | |
859 | wacom_wac->shared = NULL; | |
860 | } | |
861 | } | |
862 | ||
4451e088 | 863 | static int wacom_add_shared_data(struct hid_device *hdev) |
4492efff | 864 | { |
4451e088 BT |
865 | struct wacom *wacom = hid_get_drvdata(hdev); |
866 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
867 | struct wacom_hdev_data *data; | |
4492efff PC |
868 | int retval = 0; |
869 | ||
870 | mutex_lock(&wacom_udev_list_lock); | |
871 | ||
4451e088 | 872 | data = wacom_get_hdev_data(hdev); |
4492efff | 873 | if (!data) { |
4451e088 | 874 | data = kzalloc(sizeof(struct wacom_hdev_data), GFP_KERNEL); |
4492efff PC |
875 | if (!data) { |
876 | retval = -ENOMEM; | |
877 | goto out; | |
878 | } | |
879 | ||
880 | kref_init(&data->kref); | |
4451e088 | 881 | data->dev = hdev; |
4492efff PC |
882 | list_add_tail(&data->list, &wacom_udev_list); |
883 | } | |
884 | ||
4451e088 | 885 | wacom_wac->shared = &data->shared; |
4492efff | 886 | |
1c817c83 BT |
887 | retval = devm_add_action(&hdev->dev, wacom_remove_shared_data, wacom); |
888 | if (retval) { | |
889 | mutex_unlock(&wacom_udev_list_lock); | |
890 | wacom_remove_shared_data(wacom); | |
891 | return retval; | |
892 | } | |
893 | ||
a9ce7856 JG |
894 | if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH) |
895 | wacom_wac->shared->touch = hdev; | |
896 | else if (wacom_wac->features.device_type & WACOM_DEVICETYPE_PEN) | |
897 | wacom_wac->shared->pen = hdev; | |
898 | ||
4492efff PC |
899 | out: |
900 | mutex_unlock(&wacom_udev_list_lock); | |
901 | return retval; | |
902 | } | |
903 | ||
5d7e7d47 EH |
904 | static int wacom_led_control(struct wacom *wacom) |
905 | { | |
906 | unsigned char *buf; | |
9b5b95dd | 907 | int retval; |
912ca216 PC |
908 | unsigned char report_id = WAC_CMD_LED_CONTROL; |
909 | int buf_size = 9; | |
5d7e7d47 | 910 | |
a50aac71 BT |
911 | if (!wacom->led.groups) |
912 | return -ENOTSUPP; | |
913 | ||
74aebed6 AAS |
914 | if (wacom->wacom_wac.features.type == REMOTE) |
915 | return -ENOTSUPP; | |
916 | ||
912ca216 PC |
917 | if (wacom->wacom_wac.pid) { /* wireless connected */ |
918 | report_id = WAC_CMD_WL_LED_CONTROL; | |
919 | buf_size = 13; | |
920 | } | |
4922cd26 JG |
921 | else if (wacom->wacom_wac.features.type == INTUOSP2_BT) { |
922 | report_id = WAC_CMD_WL_INTUOSP2; | |
923 | buf_size = 51; | |
924 | } | |
912ca216 | 925 | buf = kzalloc(buf_size, GFP_KERNEL); |
5d7e7d47 EH |
926 | if (!buf) |
927 | return -ENOMEM; | |
928 | ||
10c55cac AAS |
929 | if (wacom->wacom_wac.features.type == HID_GENERIC) { |
930 | buf[0] = WAC_CMD_LED_CONTROL_GENERIC; | |
931 | buf[1] = wacom->led.llv; | |
932 | buf[2] = wacom->led.groups[0].select & 0x03; | |
933 | ||
934 | } else if ((wacom->wacom_wac.features.type >= INTUOS5S && | |
935 | wacom->wacom_wac.features.type <= INTUOSPL)) { | |
9b5b95dd JG |
936 | /* |
937 | * Touch Ring and crop mark LED luminance may take on | |
938 | * one of four values: | |
939 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
940 | */ | |
a50aac71 | 941 | int ring_led = wacom->led.groups[0].select & 0x03; |
9b5b95dd JG |
942 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; |
943 | int crop_lum = 0; | |
912ca216 PC |
944 | unsigned char led_bits = (crop_lum << 4) | (ring_lum << 2) | (ring_led); |
945 | ||
946 | buf[0] = report_id; | |
947 | if (wacom->wacom_wac.pid) { | |
948 | wacom_get_report(wacom->hdev, HID_FEATURE_REPORT, | |
949 | buf, buf_size, WAC_CMD_RETRIES); | |
950 | buf[0] = report_id; | |
951 | buf[4] = led_bits; | |
952 | } else | |
953 | buf[1] = led_bits; | |
9b5b95dd | 954 | } |
4922cd26 JG |
955 | else if (wacom->wacom_wac.features.type == INTUOSP2_BT) { |
956 | buf[0] = report_id; | |
957 | buf[4] = 100; // Power Connection LED (ORANGE) | |
958 | buf[5] = 100; // BT Connection LED (BLUE) | |
959 | buf[6] = 100; // Paper Mode (RED?) | |
960 | buf[7] = 100; // Paper Mode (GREEN?) | |
961 | buf[8] = 100; // Paper Mode (BLUE?) | |
962 | buf[9] = wacom->led.llv; | |
963 | buf[10] = wacom->led.groups[0].select & 0x03; | |
964 | } | |
9b5b95dd | 965 | else { |
a50aac71 | 966 | int led = wacom->led.groups[0].select | 0x4; |
9b5b95dd JG |
967 | |
968 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
969 | wacom->wacom_wac.features.type == WACOM_24HD) | |
a50aac71 | 970 | led |= (wacom->led.groups[1].select << 4) | 0x40; |
9b5b95dd | 971 | |
912ca216 | 972 | buf[0] = report_id; |
9b5b95dd JG |
973 | buf[1] = led; |
974 | buf[2] = wacom->led.llv; | |
975 | buf[3] = wacom->led.hlv; | |
976 | buf[4] = wacom->led.img_lum; | |
977 | } | |
5d7e7d47 | 978 | |
912ca216 | 979 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, buf_size, |
296b7378 | 980 | WAC_CMD_RETRIES); |
5d7e7d47 EH |
981 | kfree(buf); |
982 | ||
983 | return retval; | |
984 | } | |
985 | ||
849e2f06 BT |
986 | static int wacom_led_putimage(struct wacom *wacom, int button_id, u8 xfer_id, |
987 | const unsigned len, const void *img) | |
5d7e7d47 EH |
988 | { |
989 | unsigned char *buf; | |
990 | int i, retval; | |
849e2f06 | 991 | const unsigned chunk_len = len / 4; /* 4 chunks are needed to be sent */ |
5d7e7d47 | 992 | |
849e2f06 | 993 | buf = kzalloc(chunk_len + 3 , GFP_KERNEL); |
5d7e7d47 EH |
994 | if (!buf) |
995 | return -ENOMEM; | |
996 | ||
997 | /* Send 'start' command */ | |
998 | buf[0] = WAC_CMD_ICON_START; | |
999 | buf[1] = 1; | |
296b7378 PF |
1000 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2, |
1001 | WAC_CMD_RETRIES); | |
5d7e7d47 EH |
1002 | if (retval < 0) |
1003 | goto out; | |
1004 | ||
849e2f06 | 1005 | buf[0] = xfer_id; |
5d7e7d47 EH |
1006 | buf[1] = button_id & 0x07; |
1007 | for (i = 0; i < 4; i++) { | |
1008 | buf[2] = i; | |
849e2f06 | 1009 | memcpy(buf + 3, img + i * chunk_len, chunk_len); |
5d7e7d47 | 1010 | |
27b20a9d | 1011 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, |
296b7378 | 1012 | buf, chunk_len + 3, WAC_CMD_RETRIES); |
5d7e7d47 EH |
1013 | if (retval < 0) |
1014 | break; | |
1015 | } | |
1016 | ||
1017 | /* Send 'stop' */ | |
1018 | buf[0] = WAC_CMD_ICON_START; | |
1019 | buf[1] = 0; | |
296b7378 PF |
1020 | wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2, |
1021 | WAC_CMD_RETRIES); | |
5d7e7d47 EH |
1022 | |
1023 | out: | |
1024 | kfree(buf); | |
1025 | return retval; | |
1026 | } | |
1027 | ||
09e7d941 | 1028 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
1029 | const char *buf, size_t count) |
1030 | { | |
ee79a8f8 | 1031 | struct hid_device *hdev = to_hid_device(dev); |
29b47391 | 1032 | struct wacom *wacom = hid_get_drvdata(hdev); |
5d7e7d47 EH |
1033 | unsigned int id; |
1034 | int err; | |
1035 | ||
1036 | err = kstrtouint(buf, 10, &id); | |
1037 | if (err) | |
1038 | return err; | |
1039 | ||
1040 | mutex_lock(&wacom->lock); | |
1041 | ||
a50aac71 | 1042 | wacom->led.groups[set_id].select = id & 0x3; |
5d7e7d47 EH |
1043 | err = wacom_led_control(wacom); |
1044 | ||
1045 | mutex_unlock(&wacom->lock); | |
1046 | ||
1047 | return err < 0 ? err : count; | |
1048 | } | |
1049 | ||
09e7d941 PC |
1050 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
1051 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
1052 | struct device_attribute *attr, const char *buf, size_t count) \ | |
1053 | { \ | |
1054 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
1055 | } \ | |
04c59abd PC |
1056 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
1057 | struct device_attribute *attr, char *buf) \ | |
1058 | { \ | |
ee79a8f8 | 1059 | struct hid_device *hdev = to_hid_device(dev);\ |
29b47391 | 1060 | struct wacom *wacom = hid_get_drvdata(hdev); \ |
37449adc | 1061 | return scnprintf(buf, PAGE_SIZE, "%d\n", \ |
a50aac71 | 1062 | wacom->led.groups[SET_ID].select); \ |
04c59abd | 1063 | } \ |
e0984bc3 | 1064 | static DEVICE_ATTR(status_led##SET_ID##_select, DEV_ATTR_RW_PERM, \ |
04c59abd | 1065 | wacom_led##SET_ID##_select_show, \ |
09e7d941 PC |
1066 | wacom_led##SET_ID##_select_store) |
1067 | ||
1068 | DEVICE_LED_SELECT_ATTR(0); | |
1069 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
1070 | |
1071 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
1072 | const char *buf, size_t count) | |
1073 | { | |
1074 | unsigned int value; | |
1075 | int err; | |
1076 | ||
1077 | err = kstrtouint(buf, 10, &value); | |
1078 | if (err) | |
1079 | return err; | |
1080 | ||
1081 | mutex_lock(&wacom->lock); | |
1082 | ||
1083 | *dest = value & 0x7f; | |
1084 | err = wacom_led_control(wacom); | |
1085 | ||
1086 | mutex_unlock(&wacom->lock); | |
1087 | ||
1088 | return err < 0 ? err : count; | |
1089 | } | |
1090 | ||
1091 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
1092 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
1093 | struct device_attribute *attr, const char *buf, size_t count) \ | |
1094 | { \ | |
ee79a8f8 | 1095 | struct hid_device *hdev = to_hid_device(dev);\ |
29b47391 | 1096 | struct wacom *wacom = hid_get_drvdata(hdev); \ |
5d7e7d47 EH |
1097 | \ |
1098 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
1099 | buf, count); \ | |
1100 | } \ | |
37449adc PC |
1101 | static ssize_t wacom_##name##_luminance_show(struct device *dev, \ |
1102 | struct device_attribute *attr, char *buf) \ | |
1103 | { \ | |
1104 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
1105 | return scnprintf(buf, PAGE_SIZE, "%d\n", wacom->led.field); \ | |
1106 | } \ | |
e0984bc3 | 1107 | static DEVICE_ATTR(name##_luminance, DEV_ATTR_RW_PERM, \ |
37449adc PC |
1108 | wacom_##name##_luminance_show, \ |
1109 | wacom_##name##_luminance_store) | |
5d7e7d47 EH |
1110 | |
1111 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
1112 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
1113 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
1114 | ||
1115 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
1116 | const char *buf, size_t count) | |
1117 | { | |
ee79a8f8 | 1118 | struct hid_device *hdev = to_hid_device(dev); |
29b47391 | 1119 | struct wacom *wacom = hid_get_drvdata(hdev); |
5d7e7d47 | 1120 | int err; |
849e2f06 BT |
1121 | unsigned len; |
1122 | u8 xfer_id; | |
1123 | ||
1124 | if (hdev->bus == BUS_BLUETOOTH) { | |
1125 | len = 256; | |
1126 | xfer_id = WAC_CMD_ICON_BT_XFER; | |
1127 | } else { | |
1128 | len = 1024; | |
1129 | xfer_id = WAC_CMD_ICON_XFER; | |
1130 | } | |
5d7e7d47 | 1131 | |
849e2f06 | 1132 | if (count != len) |
5d7e7d47 EH |
1133 | return -EINVAL; |
1134 | ||
1135 | mutex_lock(&wacom->lock); | |
1136 | ||
849e2f06 | 1137 | err = wacom_led_putimage(wacom, button_id, xfer_id, len, buf); |
5d7e7d47 EH |
1138 | |
1139 | mutex_unlock(&wacom->lock); | |
1140 | ||
1141 | return err < 0 ? err : count; | |
1142 | } | |
1143 | ||
1144 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
1145 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
1146 | struct device_attribute *attr, const char *buf, size_t count) \ | |
1147 | { \ | |
1148 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
1149 | } \ | |
e0984bc3 | 1150 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, DEV_ATTR_WO_PERM, \ |
5d7e7d47 EH |
1151 | NULL, wacom_btnimg##BUTTON_ID##_store) |
1152 | ||
1153 | DEVICE_BTNIMG_ATTR(0); | |
1154 | DEVICE_BTNIMG_ATTR(1); | |
1155 | DEVICE_BTNIMG_ATTR(2); | |
1156 | DEVICE_BTNIMG_ATTR(3); | |
1157 | DEVICE_BTNIMG_ATTR(4); | |
1158 | DEVICE_BTNIMG_ATTR(5); | |
1159 | DEVICE_BTNIMG_ATTR(6); | |
1160 | DEVICE_BTNIMG_ATTR(7); | |
1161 | ||
09e7d941 PC |
1162 | static struct attribute *cintiq_led_attrs[] = { |
1163 | &dev_attr_status_led0_select.attr, | |
1164 | &dev_attr_status_led1_select.attr, | |
1165 | NULL | |
1166 | }; | |
1167 | ||
1168 | static struct attribute_group cintiq_led_attr_group = { | |
1169 | .name = "wacom_led", | |
1170 | .attrs = cintiq_led_attrs, | |
1171 | }; | |
1172 | ||
1173 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
1174 | &dev_attr_status0_luminance.attr, |
1175 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 1176 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
1177 | &dev_attr_buttons_luminance.attr, |
1178 | &dev_attr_button0_rawimg.attr, | |
1179 | &dev_attr_button1_rawimg.attr, | |
1180 | &dev_attr_button2_rawimg.attr, | |
1181 | &dev_attr_button3_rawimg.attr, | |
1182 | &dev_attr_button4_rawimg.attr, | |
1183 | &dev_attr_button5_rawimg.attr, | |
1184 | &dev_attr_button6_rawimg.attr, | |
1185 | &dev_attr_button7_rawimg.attr, | |
1186 | NULL | |
1187 | }; | |
1188 | ||
09e7d941 | 1189 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 1190 | .name = "wacom_led", |
09e7d941 | 1191 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
1192 | }; |
1193 | ||
9b5b95dd JG |
1194 | static struct attribute *intuos5_led_attrs[] = { |
1195 | &dev_attr_status0_luminance.attr, | |
1196 | &dev_attr_status_led0_select.attr, | |
1197 | NULL | |
1198 | }; | |
1199 | ||
1200 | static struct attribute_group intuos5_led_attr_group = { | |
1201 | .name = "wacom_led", | |
1202 | .attrs = intuos5_led_attrs, | |
1203 | }; | |
1204 | ||
10c55cac AAS |
1205 | static struct attribute *generic_led_attrs[] = { |
1206 | &dev_attr_status0_luminance.attr, | |
1207 | &dev_attr_status_led0_select.attr, | |
1208 | NULL | |
1209 | }; | |
1210 | ||
1211 | static struct attribute_group generic_led_attr_group = { | |
1212 | .name = "wacom_led", | |
1213 | .attrs = generic_led_attrs, | |
1214 | }; | |
1215 | ||
2df68a88 BT |
1216 | struct wacom_sysfs_group_devres { |
1217 | struct attribute_group *group; | |
1218 | struct kobject *root; | |
1219 | }; | |
1220 | ||
1221 | static void wacom_devm_sysfs_group_release(struct device *dev, void *res) | |
1222 | { | |
1223 | struct wacom_sysfs_group_devres *devres = res; | |
1224 | struct kobject *kobj = devres->root; | |
1225 | ||
1226 | dev_dbg(dev, "%s: dropping reference to %s\n", | |
1227 | __func__, devres->group->name); | |
1228 | sysfs_remove_group(kobj, devres->group); | |
1229 | } | |
1230 | ||
f9036bd4 BT |
1231 | static int __wacom_devm_sysfs_create_group(struct wacom *wacom, |
1232 | struct kobject *root, | |
1233 | struct attribute_group *group) | |
2df68a88 BT |
1234 | { |
1235 | struct wacom_sysfs_group_devres *devres; | |
1236 | int error; | |
1237 | ||
1238 | devres = devres_alloc(wacom_devm_sysfs_group_release, | |
1239 | sizeof(struct wacom_sysfs_group_devres), | |
1240 | GFP_KERNEL); | |
1241 | if (!devres) | |
1242 | return -ENOMEM; | |
1243 | ||
1244 | devres->group = group; | |
f9036bd4 | 1245 | devres->root = root; |
2df68a88 BT |
1246 | |
1247 | error = sysfs_create_group(devres->root, group); | |
097b8f62 AY |
1248 | if (error) { |
1249 | devres_free(devres); | |
2df68a88 | 1250 | return error; |
097b8f62 | 1251 | } |
2df68a88 BT |
1252 | |
1253 | devres_add(&wacom->hdev->dev, devres); | |
1254 | ||
1255 | return 0; | |
1256 | } | |
1257 | ||
f9036bd4 BT |
1258 | static int wacom_devm_sysfs_create_group(struct wacom *wacom, |
1259 | struct attribute_group *group) | |
1260 | { | |
1261 | return __wacom_devm_sysfs_create_group(wacom, &wacom->hdev->dev.kobj, | |
1262 | group); | |
1263 | } | |
1264 | ||
34736aa9 | 1265 | enum led_brightness wacom_leds_brightness_get(struct wacom_led *led) |
97f5541f BT |
1266 | { |
1267 | struct wacom *wacom = led->wacom; | |
1268 | ||
1269 | if (wacom->led.max_hlv) | |
1270 | return led->hlv * LED_FULL / wacom->led.max_hlv; | |
1271 | ||
1272 | if (wacom->led.max_llv) | |
1273 | return led->llv * LED_FULL / wacom->led.max_llv; | |
1274 | ||
1275 | /* device doesn't support brightness tuning */ | |
1276 | return LED_FULL; | |
1277 | } | |
1278 | ||
1279 | static enum led_brightness __wacom_led_brightness_get(struct led_classdev *cdev) | |
1280 | { | |
1281 | struct wacom_led *led = container_of(cdev, struct wacom_led, cdev); | |
1282 | struct wacom *wacom = led->wacom; | |
1283 | ||
1284 | if (wacom->led.groups[led->group].select != led->id) | |
1285 | return LED_OFF; | |
1286 | ||
1287 | return wacom_leds_brightness_get(led); | |
1288 | } | |
1289 | ||
1290 | static int wacom_led_brightness_set(struct led_classdev *cdev, | |
1291 | enum led_brightness brightness) | |
1292 | { | |
1293 | struct wacom_led *led = container_of(cdev, struct wacom_led, cdev); | |
1294 | struct wacom *wacom = led->wacom; | |
1295 | int error; | |
1296 | ||
1297 | mutex_lock(&wacom->lock); | |
1298 | ||
1299 | if (!wacom->led.groups || (brightness == LED_OFF && | |
1300 | wacom->led.groups[led->group].select != led->id)) { | |
1301 | error = 0; | |
1302 | goto out; | |
1303 | } | |
1304 | ||
1305 | led->llv = wacom->led.llv = wacom->led.max_llv * brightness / LED_FULL; | |
1306 | led->hlv = wacom->led.hlv = wacom->led.max_hlv * brightness / LED_FULL; | |
1307 | ||
1308 | wacom->led.groups[led->group].select = led->id; | |
1309 | ||
1310 | error = wacom_led_control(wacom); | |
1311 | ||
1312 | out: | |
1313 | mutex_unlock(&wacom->lock); | |
1314 | ||
1315 | return error; | |
1316 | } | |
1317 | ||
1318 | static void wacom_led_readonly_brightness_set(struct led_classdev *cdev, | |
1319 | enum led_brightness brightness) | |
1320 | { | |
1321 | } | |
1322 | ||
1323 | static int wacom_led_register_one(struct device *dev, struct wacom *wacom, | |
1324 | struct wacom_led *led, unsigned int group, | |
1325 | unsigned int id, bool read_only) | |
1326 | { | |
1327 | int error; | |
1328 | char *name; | |
1329 | ||
1330 | name = devm_kasprintf(dev, GFP_KERNEL, | |
1331 | "%s::wacom-%d.%d", | |
1332 | dev_name(dev), | |
1333 | group, | |
1334 | id); | |
1335 | if (!name) | |
1336 | return -ENOMEM; | |
1337 | ||
34736aa9 BT |
1338 | if (!read_only) { |
1339 | led->trigger.name = name; | |
1340 | error = devm_led_trigger_register(dev, &led->trigger); | |
1341 | if (error) { | |
1342 | hid_err(wacom->hdev, | |
1343 | "failed to register LED trigger %s: %d\n", | |
1344 | led->cdev.name, error); | |
1345 | return error; | |
1346 | } | |
1347 | } | |
1348 | ||
97f5541f BT |
1349 | led->group = group; |
1350 | led->id = id; | |
1351 | led->wacom = wacom; | |
1352 | led->llv = wacom->led.llv; | |
1353 | led->hlv = wacom->led.hlv; | |
1354 | led->cdev.name = name; | |
1355 | led->cdev.max_brightness = LED_FULL; | |
1356 | led->cdev.flags = LED_HW_PLUGGABLE; | |
1357 | led->cdev.brightness_get = __wacom_led_brightness_get; | |
34736aa9 | 1358 | if (!read_only) { |
97f5541f | 1359 | led->cdev.brightness_set_blocking = wacom_led_brightness_set; |
34736aa9 BT |
1360 | led->cdev.default_trigger = led->cdev.name; |
1361 | } else { | |
97f5541f | 1362 | led->cdev.brightness_set = wacom_led_readonly_brightness_set; |
34736aa9 | 1363 | } |
97f5541f BT |
1364 | |
1365 | error = devm_led_classdev_register(dev, &led->cdev); | |
1366 | if (error) { | |
1367 | hid_err(wacom->hdev, | |
1368 | "failed to register LED %s: %d\n", | |
1369 | led->cdev.name, error); | |
1370 | led->cdev.name = NULL; | |
1371 | return error; | |
1372 | } | |
1373 | ||
1374 | return 0; | |
1375 | } | |
1376 | ||
589e5060 BT |
1377 | static void wacom_led_groups_release_one(void *data) |
1378 | { | |
1379 | struct wacom_group_leds *group = data; | |
1380 | ||
1381 | devres_release_group(group->dev, group); | |
1382 | } | |
1383 | ||
97f5541f BT |
1384 | static int wacom_led_groups_alloc_and_register_one(struct device *dev, |
1385 | struct wacom *wacom, | |
1386 | int group_id, int count, | |
1387 | bool read_only) | |
1388 | { | |
1389 | struct wacom_led *leds; | |
1390 | int i, error; | |
1391 | ||
1392 | if (group_id >= wacom->led.count || count <= 0) | |
1393 | return -EINVAL; | |
1394 | ||
1395 | if (!devres_open_group(dev, &wacom->led.groups[group_id], GFP_KERNEL)) | |
1396 | return -ENOMEM; | |
1397 | ||
a86854d0 | 1398 | leds = devm_kcalloc(dev, count, sizeof(struct wacom_led), GFP_KERNEL); |
97f5541f BT |
1399 | if (!leds) { |
1400 | error = -ENOMEM; | |
1401 | goto err; | |
1402 | } | |
1403 | ||
1404 | wacom->led.groups[group_id].leds = leds; | |
1405 | wacom->led.groups[group_id].count = count; | |
1406 | ||
1407 | for (i = 0; i < count; i++) { | |
1408 | error = wacom_led_register_one(dev, wacom, &leds[i], | |
1409 | group_id, i, read_only); | |
1410 | if (error) | |
1411 | goto err; | |
1412 | } | |
1413 | ||
589e5060 BT |
1414 | wacom->led.groups[group_id].dev = dev; |
1415 | ||
1416 | devres_close_group(dev, &wacom->led.groups[group_id]); | |
1417 | ||
1418 | /* | |
1419 | * There is a bug (?) in devm_led_classdev_register() in which its | |
1420 | * increments the refcount of the parent. If the parent is an input | |
1421 | * device, that means the ref count never reaches 0 when | |
1422 | * devm_input_device_release() gets called. | |
1423 | * This means that the LEDs are still there after disconnect. | |
1424 | * Manually force the release of the group so that the leds are released | |
1425 | * once we are done using them. | |
1426 | */ | |
1427 | error = devm_add_action_or_reset(&wacom->hdev->dev, | |
1428 | wacom_led_groups_release_one, | |
1429 | &wacom->led.groups[group_id]); | |
1430 | if (error) | |
1431 | return error; | |
1432 | ||
97f5541f BT |
1433 | return 0; |
1434 | ||
1435 | err: | |
1436 | devres_release_group(dev, &wacom->led.groups[group_id]); | |
1437 | return error; | |
1438 | } | |
1439 | ||
34736aa9 BT |
1440 | struct wacom_led *wacom_led_find(struct wacom *wacom, unsigned int group_id, |
1441 | unsigned int id) | |
1442 | { | |
1443 | struct wacom_group_leds *group; | |
1444 | ||
1445 | if (group_id >= wacom->led.count) | |
1446 | return NULL; | |
1447 | ||
1448 | group = &wacom->led.groups[group_id]; | |
1449 | ||
1450 | if (!group->leds) | |
1451 | return NULL; | |
1452 | ||
1453 | id %= group->count; | |
1454 | ||
1455 | return &group->leds[id]; | |
1456 | } | |
1457 | ||
1458 | /** | |
1459 | * wacom_led_next: gives the next available led with a wacom trigger. | |
1460 | * | |
1461 | * returns the next available struct wacom_led which has its default trigger | |
1462 | * or the current one if none is available. | |
1463 | */ | |
1464 | struct wacom_led *wacom_led_next(struct wacom *wacom, struct wacom_led *cur) | |
1465 | { | |
1466 | struct wacom_led *next_led; | |
1467 | int group, next; | |
1468 | ||
1469 | if (!wacom || !cur) | |
1470 | return NULL; | |
1471 | ||
1472 | group = cur->group; | |
1473 | next = cur->id; | |
1474 | ||
1475 | do { | |
1476 | next_led = wacom_led_find(wacom, group, ++next); | |
1477 | if (!next_led || next_led == cur) | |
1478 | return next_led; | |
1479 | } while (next_led->cdev.trigger != &next_led->trigger); | |
1480 | ||
1481 | return next_led; | |
1482 | } | |
1483 | ||
a50aac71 BT |
1484 | static void wacom_led_groups_release(void *data) |
1485 | { | |
1486 | struct wacom *wacom = data; | |
1487 | ||
1488 | wacom->led.groups = NULL; | |
97f5541f | 1489 | wacom->led.count = 0; |
a50aac71 BT |
1490 | } |
1491 | ||
1492 | static int wacom_led_groups_allocate(struct wacom *wacom, int count) | |
1493 | { | |
97f5541f | 1494 | struct device *dev = &wacom->hdev->dev; |
a50aac71 BT |
1495 | struct wacom_group_leds *groups; |
1496 | int error; | |
1497 | ||
a86854d0 | 1498 | groups = devm_kcalloc(dev, count, sizeof(struct wacom_group_leds), |
a50aac71 BT |
1499 | GFP_KERNEL); |
1500 | if (!groups) | |
1501 | return -ENOMEM; | |
1502 | ||
97f5541f | 1503 | error = devm_add_action_or_reset(dev, wacom_led_groups_release, wacom); |
a50aac71 BT |
1504 | if (error) |
1505 | return error; | |
1506 | ||
1507 | wacom->led.groups = groups; | |
97f5541f BT |
1508 | wacom->led.count = count; |
1509 | ||
1510 | return 0; | |
1511 | } | |
1512 | ||
1513 | static int wacom_leds_alloc_and_register(struct wacom *wacom, int group_count, | |
1514 | int led_per_group, bool read_only) | |
1515 | { | |
1516 | struct device *dev; | |
1517 | int i, error; | |
1518 | ||
1519 | if (!wacom->wacom_wac.pad_input) | |
1520 | return -EINVAL; | |
1521 | ||
1522 | dev = &wacom->wacom_wac.pad_input->dev; | |
1523 | ||
1524 | error = wacom_led_groups_allocate(wacom, group_count); | |
1525 | if (error) | |
1526 | return error; | |
1527 | ||
1528 | for (i = 0; i < group_count; i++) { | |
1529 | error = wacom_led_groups_alloc_and_register_one(dev, wacom, i, | |
1530 | led_per_group, | |
1531 | read_only); | |
1532 | if (error) | |
1533 | return error; | |
1534 | } | |
a50aac71 BT |
1535 | |
1536 | return 0; | |
1537 | } | |
1538 | ||
10c55cac | 1539 | int wacom_initialize_leds(struct wacom *wacom) |
5d7e7d47 EH |
1540 | { |
1541 | int error; | |
1542 | ||
862cf553 JG |
1543 | if (!(wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD)) |
1544 | return 0; | |
1545 | ||
09e7d941 PC |
1546 | /* Initialize default values */ |
1547 | switch (wacom->wacom_wac.features.type) { | |
10c55cac AAS |
1548 | case HID_GENERIC: |
1549 | if (!wacom->generic_has_leds) | |
1550 | return 0; | |
1551 | wacom->led.llv = 100; | |
1552 | wacom->led.max_llv = 100; | |
1553 | ||
1554 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); | |
1555 | if (error) { | |
1556 | hid_err(wacom->hdev, | |
1557 | "cannot create leds err: %d\n", error); | |
1558 | return error; | |
1559 | } | |
1560 | ||
1561 | error = wacom_devm_sysfs_create_group(wacom, | |
1562 | &generic_led_attr_group); | |
1563 | break; | |
1564 | ||
a19fc986 | 1565 | case INTUOS4S: |
09e7d941 | 1566 | case INTUOS4: |
81af7e61 | 1567 | case INTUOS4WL: |
09e7d941 | 1568 | case INTUOS4L: |
f4fa9a6d | 1569 | wacom->led.llv = 10; |
5d7e7d47 | 1570 | wacom->led.hlv = 20; |
97f5541f BT |
1571 | wacom->led.max_llv = 127; |
1572 | wacom->led.max_hlv = 127; | |
5d7e7d47 | 1573 | wacom->led.img_lum = 10; |
a50aac71 | 1574 | |
97f5541f | 1575 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); |
a50aac71 BT |
1576 | if (error) { |
1577 | hid_err(wacom->hdev, | |
1578 | "cannot create leds err: %d\n", error); | |
1579 | return error; | |
1580 | } | |
1581 | ||
2df68a88 BT |
1582 | error = wacom_devm_sysfs_create_group(wacom, |
1583 | &intuos4_led_attr_group); | |
09e7d941 PC |
1584 | break; |
1585 | ||
246835fc | 1586 | case WACOM_24HD: |
09e7d941 | 1587 | case WACOM_21UX2: |
09e7d941 PC |
1588 | wacom->led.llv = 0; |
1589 | wacom->led.hlv = 0; | |
1590 | wacom->led.img_lum = 0; | |
5d7e7d47 | 1591 | |
97f5541f | 1592 | error = wacom_leds_alloc_and_register(wacom, 2, 4, false); |
a50aac71 BT |
1593 | if (error) { |
1594 | hid_err(wacom->hdev, | |
1595 | "cannot create leds err: %d\n", error); | |
1596 | return error; | |
1597 | } | |
1598 | ||
2df68a88 BT |
1599 | error = wacom_devm_sysfs_create_group(wacom, |
1600 | &cintiq_led_attr_group); | |
09e7d941 PC |
1601 | break; |
1602 | ||
9b5b95dd JG |
1603 | case INTUOS5S: |
1604 | case INTUOS5: | |
1605 | case INTUOS5L: | |
9a35c411 PC |
1606 | case INTUOSPS: |
1607 | case INTUOSPM: | |
1608 | case INTUOSPL: | |
862cf553 | 1609 | wacom->led.llv = 32; |
97f5541f | 1610 | wacom->led.max_llv = 96; |
862cf553 | 1611 | |
97f5541f | 1612 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); |
a50aac71 BT |
1613 | if (error) { |
1614 | hid_err(wacom->hdev, | |
1615 | "cannot create leds err: %d\n", error); | |
1616 | return error; | |
1617 | } | |
1618 | ||
2df68a88 BT |
1619 | error = wacom_devm_sysfs_create_group(wacom, |
1620 | &intuos5_led_attr_group); | |
9b5b95dd JG |
1621 | break; |
1622 | ||
4922cd26 JG |
1623 | case INTUOSP2_BT: |
1624 | wacom->led.llv = 50; | |
1625 | wacom->led.max_llv = 100; | |
1626 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); | |
1627 | if (error) { | |
1628 | hid_err(wacom->hdev, | |
1629 | "cannot create leds err: %d\n", error); | |
1630 | return error; | |
1631 | } | |
1632 | return 0; | |
1633 | ||
a50aac71 | 1634 | case REMOTE: |
97f5541f BT |
1635 | wacom->led.llv = 255; |
1636 | wacom->led.max_llv = 255; | |
a50aac71 BT |
1637 | error = wacom_led_groups_allocate(wacom, 5); |
1638 | if (error) { | |
1639 | hid_err(wacom->hdev, | |
1640 | "cannot create leds err: %d\n", error); | |
1641 | return error; | |
1642 | } | |
1643 | return 0; | |
1644 | ||
09e7d941 PC |
1645 | default: |
1646 | return 0; | |
5d7e7d47 EH |
1647 | } |
1648 | ||
09e7d941 | 1649 | if (error) { |
c31a408f | 1650 | hid_err(wacom->hdev, |
09e7d941 PC |
1651 | "cannot create sysfs group err: %d\n", error); |
1652 | return error; | |
1653 | } | |
09e7d941 | 1654 | |
5d7e7d47 EH |
1655 | return 0; |
1656 | } | |
1657 | ||
a544c619 BT |
1658 | static void wacom_init_work(struct work_struct *work) |
1659 | { | |
1660 | struct wacom *wacom = container_of(work, struct wacom, init_work.work); | |
1661 | ||
1662 | _wacom_query_tablet_data(wacom); | |
1663 | wacom_led_control(wacom); | |
1664 | } | |
1665 | ||
1666 | static void wacom_query_tablet_data(struct wacom *wacom) | |
1667 | { | |
1668 | schedule_delayed_work(&wacom->init_work, msecs_to_jiffies(1000)); | |
1669 | } | |
1670 | ||
a1d552cc | 1671 | static enum power_supply_property wacom_battery_props[] = { |
9956953e | 1672 | POWER_SUPPLY_PROP_MODEL_NAME, |
71fa641e | 1673 | POWER_SUPPLY_PROP_PRESENT, |
ac8d1010 | 1674 | POWER_SUPPLY_PROP_STATUS, |
6e2a6e80 | 1675 | POWER_SUPPLY_PROP_SCOPE, |
a1d552cc CB |
1676 | POWER_SUPPLY_PROP_CAPACITY |
1677 | }; | |
1678 | ||
1679 | static int wacom_battery_get_property(struct power_supply *psy, | |
1680 | enum power_supply_property psp, | |
1681 | union power_supply_propval *val) | |
1682 | { | |
59d69bc8 | 1683 | struct wacom_battery *battery = power_supply_get_drvdata(psy); |
a1d552cc CB |
1684 | int ret = 0; |
1685 | ||
1686 | switch (psp) { | |
9956953e BT |
1687 | case POWER_SUPPLY_PROP_MODEL_NAME: |
1688 | val->strval = battery->wacom->wacom_wac.name; | |
1689 | break; | |
71fa641e | 1690 | case POWER_SUPPLY_PROP_PRESENT: |
59d69bc8 | 1691 | val->intval = battery->bat_connected; |
71fa641e | 1692 | break; |
6e2a6e80 BN |
1693 | case POWER_SUPPLY_PROP_SCOPE: |
1694 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
1695 | break; | |
a1d552cc | 1696 | case POWER_SUPPLY_PROP_CAPACITY: |
59d69bc8 | 1697 | val->intval = battery->battery_capacity; |
ac8d1010 BT |
1698 | break; |
1699 | case POWER_SUPPLY_PROP_STATUS: | |
16e45989 JG |
1700 | if (battery->bat_status != WACOM_POWER_SUPPLY_STATUS_AUTO) |
1701 | val->intval = battery->bat_status; | |
1702 | else if (battery->bat_charging) | |
ac8d1010 | 1703 | val->intval = POWER_SUPPLY_STATUS_CHARGING; |
59d69bc8 BT |
1704 | else if (battery->battery_capacity == 100 && |
1705 | battery->ps_connected) | |
ac8d1010 | 1706 | val->intval = POWER_SUPPLY_STATUS_FULL; |
59d69bc8 | 1707 | else if (battery->ps_connected) |
b0882cb7 | 1708 | val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING; |
ac8d1010 BT |
1709 | else |
1710 | val->intval = POWER_SUPPLY_STATUS_DISCHARGING; | |
a1d552cc CB |
1711 | break; |
1712 | default: | |
1713 | ret = -EINVAL; | |
1714 | break; | |
1715 | } | |
1716 | ||
1717 | return ret; | |
1718 | } | |
1719 | ||
59d69bc8 BT |
1720 | static int __wacom_initialize_battery(struct wacom *wacom, |
1721 | struct wacom_battery *battery) | |
a1d552cc | 1722 | { |
d70420b9 | 1723 | static atomic_t battery_no = ATOMIC_INIT(0); |
b189da90 | 1724 | struct device *dev = &wacom->hdev->dev; |
59d69bc8 | 1725 | struct power_supply_config psy_cfg = { .drv_data = battery, }; |
136ae5e9 | 1726 | struct power_supply *ps_bat; |
59d69bc8 | 1727 | struct power_supply_desc *bat_desc = &battery->bat_desc; |
d70420b9 | 1728 | unsigned long n; |
b189da90 BT |
1729 | int error; |
1730 | ||
1731 | if (!devres_open_group(dev, bat_desc, GFP_KERNEL)) | |
1732 | return -ENOMEM; | |
a1d552cc | 1733 | |
9956953e BT |
1734 | battery->wacom = wacom; |
1735 | ||
59d69bc8 BT |
1736 | n = atomic_inc_return(&battery_no) - 1; |
1737 | ||
1738 | bat_desc->properties = wacom_battery_props; | |
1739 | bat_desc->num_properties = ARRAY_SIZE(wacom_battery_props); | |
1740 | bat_desc->get_property = wacom_battery_get_property; | |
1741 | sprintf(battery->bat_name, "wacom_battery_%ld", n); | |
1742 | bat_desc->name = battery->bat_name; | |
96983296 | 1743 | bat_desc->type = POWER_SUPPLY_TYPE_USB; |
59d69bc8 BT |
1744 | bat_desc->use_for_apm = 0; |
1745 | ||
59d69bc8 BT |
1746 | ps_bat = devm_power_supply_register(dev, bat_desc, &psy_cfg); |
1747 | if (IS_ERR(ps_bat)) { | |
1748 | error = PTR_ERR(ps_bat); | |
1749 | goto err; | |
1750 | } | |
297d716f | 1751 | |
59d69bc8 | 1752 | power_supply_powers(ps_bat, &wacom->hdev->dev); |
7dbd229e | 1753 | |
59d69bc8 | 1754 | battery->battery = ps_bat; |
a1d552cc | 1755 | |
b189da90 | 1756 | devres_close_group(dev, bat_desc); |
7dbd229e | 1757 | return 0; |
b189da90 BT |
1758 | |
1759 | err: | |
1760 | devres_release_group(dev, bat_desc); | |
1761 | return error; | |
a1d552cc CB |
1762 | } |
1763 | ||
59d69bc8 BT |
1764 | static int wacom_initialize_battery(struct wacom *wacom) |
1765 | { | |
1766 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) | |
1767 | return __wacom_initialize_battery(wacom, &wacom->battery); | |
1768 | ||
1769 | return 0; | |
1770 | } | |
1771 | ||
a1d552cc CB |
1772 | static void wacom_destroy_battery(struct wacom *wacom) |
1773 | { | |
59d69bc8 BT |
1774 | if (wacom->battery.battery) { |
1775 | devres_release_group(&wacom->hdev->dev, | |
1776 | &wacom->battery.bat_desc); | |
1777 | wacom->battery.battery = NULL; | |
b7af2bb8 | 1778 | } |
a1d552cc CB |
1779 | } |
1780 | ||
f81a1295 BT |
1781 | static ssize_t wacom_show_speed(struct device *dev, |
1782 | struct device_attribute | |
1783 | *attr, char *buf) | |
1784 | { | |
ee79a8f8 | 1785 | struct hid_device *hdev = to_hid_device(dev); |
f81a1295 BT |
1786 | struct wacom *wacom = hid_get_drvdata(hdev); |
1787 | ||
1788 | return snprintf(buf, PAGE_SIZE, "%i\n", wacom->wacom_wac.bt_high_speed); | |
1789 | } | |
1790 | ||
1791 | static ssize_t wacom_store_speed(struct device *dev, | |
1792 | struct device_attribute *attr, | |
1793 | const char *buf, size_t count) | |
1794 | { | |
ee79a8f8 | 1795 | struct hid_device *hdev = to_hid_device(dev); |
f81a1295 BT |
1796 | struct wacom *wacom = hid_get_drvdata(hdev); |
1797 | u8 new_speed; | |
1798 | ||
1799 | if (kstrtou8(buf, 0, &new_speed)) | |
1800 | return -EINVAL; | |
1801 | ||
1802 | if (new_speed != 0 && new_speed != 1) | |
1803 | return -EINVAL; | |
1804 | ||
1805 | wacom_bt_query_tablet_data(hdev, new_speed, &wacom->wacom_wac.features); | |
1806 | ||
1807 | return count; | |
1808 | } | |
1809 | ||
e0984bc3 | 1810 | static DEVICE_ATTR(speed, DEV_ATTR_RW_PERM, |
f81a1295 BT |
1811 | wacom_show_speed, wacom_store_speed); |
1812 | ||
72b236d6 AS |
1813 | |
1814 | static ssize_t wacom_show_remote_mode(struct kobject *kobj, | |
1815 | struct kobj_attribute *kattr, | |
1816 | char *buf, int index) | |
1817 | { | |
2cf83833 | 1818 | struct device *dev = kobj_to_dev(kobj->parent); |
ee79a8f8 | 1819 | struct hid_device *hdev = to_hid_device(dev); |
72b236d6 AS |
1820 | struct wacom *wacom = hid_get_drvdata(hdev); |
1821 | u8 mode; | |
1822 | ||
a50aac71 | 1823 | mode = wacom->led.groups[index].select; |
bc35f73a | 1824 | return sprintf(buf, "%d\n", mode < 3 ? mode : -1); |
72b236d6 AS |
1825 | } |
1826 | ||
1827 | #define DEVICE_EKR_ATTR_GROUP(SET_ID) \ | |
1828 | static ssize_t wacom_show_remote##SET_ID##_mode(struct kobject *kobj, \ | |
1829 | struct kobj_attribute *kattr, char *buf) \ | |
1830 | { \ | |
1831 | return wacom_show_remote_mode(kobj, kattr, buf, SET_ID); \ | |
1832 | } \ | |
1833 | static struct kobj_attribute remote##SET_ID##_mode_attr = { \ | |
1834 | .attr = {.name = "remote_mode", \ | |
1835 | .mode = DEV_ATTR_RO_PERM}, \ | |
1836 | .show = wacom_show_remote##SET_ID##_mode, \ | |
1837 | }; \ | |
1838 | static struct attribute *remote##SET_ID##_serial_attrs[] = { \ | |
1839 | &remote##SET_ID##_mode_attr.attr, \ | |
1840 | NULL \ | |
1841 | }; \ | |
1842 | static struct attribute_group remote##SET_ID##_serial_group = { \ | |
1843 | .name = NULL, \ | |
1844 | .attrs = remote##SET_ID##_serial_attrs, \ | |
1845 | } | |
1846 | ||
1847 | DEVICE_EKR_ATTR_GROUP(0); | |
1848 | DEVICE_EKR_ATTR_GROUP(1); | |
1849 | DEVICE_EKR_ATTR_GROUP(2); | |
1850 | DEVICE_EKR_ATTR_GROUP(3); | |
1851 | DEVICE_EKR_ATTR_GROUP(4); | |
1852 | ||
e6f2813a BT |
1853 | static int wacom_remote_create_attr_group(struct wacom *wacom, __u32 serial, |
1854 | int index) | |
72b236d6 AS |
1855 | { |
1856 | int error = 0; | |
83e6b40e | 1857 | struct wacom_remote *remote = wacom->remote; |
72b236d6 | 1858 | |
e7749f6e | 1859 | remote->remotes[index].group.name = devm_kasprintf(&wacom->hdev->dev, |
83e6b40e BT |
1860 | GFP_KERNEL, |
1861 | "%d", serial); | |
e7749f6e | 1862 | if (!remote->remotes[index].group.name) |
72b236d6 | 1863 | return -ENOMEM; |
72b236d6 | 1864 | |
f9036bd4 | 1865 | error = __wacom_devm_sysfs_create_group(wacom, remote->remote_dir, |
e7749f6e | 1866 | &remote->remotes[index].group); |
72b236d6 | 1867 | if (error) { |
e7749f6e | 1868 | remote->remotes[index].group.name = NULL; |
72b236d6 AS |
1869 | hid_err(wacom->hdev, |
1870 | "cannot create sysfs group err: %d\n", error); | |
72b236d6 AS |
1871 | return error; |
1872 | } | |
1873 | ||
1874 | return 0; | |
1875 | } | |
1876 | ||
72b236d6 AS |
1877 | static int wacom_cmd_unpair_remote(struct wacom *wacom, unsigned char selector) |
1878 | { | |
1879 | const size_t buf_size = 2; | |
1880 | unsigned char *buf; | |
1881 | int retval; | |
1882 | ||
1883 | buf = kzalloc(buf_size, GFP_KERNEL); | |
1884 | if (!buf) | |
1885 | return -ENOMEM; | |
1886 | ||
1887 | buf[0] = WAC_CMD_DELETE_PAIRING; | |
1888 | buf[1] = selector; | |
1889 | ||
1890 | retval = wacom_set_report(wacom->hdev, HID_OUTPUT_REPORT, buf, | |
1891 | buf_size, WAC_CMD_RETRIES); | |
1892 | kfree(buf); | |
1893 | ||
1894 | return retval; | |
1895 | } | |
1896 | ||
1897 | static ssize_t wacom_store_unpair_remote(struct kobject *kobj, | |
1898 | struct kobj_attribute *attr, | |
1899 | const char *buf, size_t count) | |
1900 | { | |
1901 | unsigned char selector = 0; | |
2cf83833 | 1902 | struct device *dev = kobj_to_dev(kobj->parent); |
ee79a8f8 | 1903 | struct hid_device *hdev = to_hid_device(dev); |
72b236d6 AS |
1904 | struct wacom *wacom = hid_get_drvdata(hdev); |
1905 | int err; | |
1906 | ||
1907 | if (!strncmp(buf, "*\n", 2)) { | |
1908 | selector = WAC_CMD_UNPAIR_ALL; | |
1909 | } else { | |
1910 | hid_info(wacom->hdev, "remote: unrecognized unpair code: %s\n", | |
1911 | buf); | |
1912 | return -1; | |
1913 | } | |
1914 | ||
1915 | mutex_lock(&wacom->lock); | |
1916 | ||
1917 | err = wacom_cmd_unpair_remote(wacom, selector); | |
1918 | mutex_unlock(&wacom->lock); | |
1919 | ||
1920 | return err < 0 ? err : count; | |
1921 | } | |
1922 | ||
1923 | static struct kobj_attribute unpair_remote_attr = { | |
1924 | .attr = {.name = "unpair_remote", .mode = 0200}, | |
1925 | .store = wacom_store_unpair_remote, | |
1926 | }; | |
1927 | ||
1928 | static const struct attribute *remote_unpair_attrs[] = { | |
1929 | &unpair_remote_attr.attr, | |
1930 | NULL | |
1931 | }; | |
1932 | ||
83e6b40e BT |
1933 | static void wacom_remotes_destroy(void *data) |
1934 | { | |
1935 | struct wacom *wacom = data; | |
1936 | struct wacom_remote *remote = wacom->remote; | |
1937 | ||
1938 | if (!remote) | |
1939 | return; | |
1940 | ||
1941 | kobject_put(remote->remote_dir); | |
1942 | kfifo_free(&remote->remote_fifo); | |
1943 | wacom->remote = NULL; | |
1944 | } | |
1945 | ||
1946 | static int wacom_initialize_remotes(struct wacom *wacom) | |
72b236d6 AS |
1947 | { |
1948 | int error = 0; | |
83e6b40e | 1949 | struct wacom_remote *remote; |
72b236d6 AS |
1950 | int i; |
1951 | ||
1952 | if (wacom->wacom_wac.features.type != REMOTE) | |
1953 | return 0; | |
1954 | ||
83e6b40e BT |
1955 | remote = devm_kzalloc(&wacom->hdev->dev, sizeof(*wacom->remote), |
1956 | GFP_KERNEL); | |
1957 | if (!remote) | |
1958 | return -ENOMEM; | |
72b236d6 | 1959 | |
83e6b40e BT |
1960 | wacom->remote = remote; |
1961 | ||
1962 | spin_lock_init(&remote->remote_lock); | |
1963 | ||
1964 | error = kfifo_alloc(&remote->remote_fifo, | |
1965 | 5 * sizeof(struct wacom_remote_data), | |
1966 | GFP_KERNEL); | |
1967 | if (error) { | |
1968 | hid_err(wacom->hdev, "failed allocating remote_fifo\n"); | |
72b236d6 | 1969 | return -ENOMEM; |
83e6b40e | 1970 | } |
72b236d6 | 1971 | |
e7749f6e BT |
1972 | remote->remotes[0].group = remote0_serial_group; |
1973 | remote->remotes[1].group = remote1_serial_group; | |
1974 | remote->remotes[2].group = remote2_serial_group; | |
1975 | remote->remotes[3].group = remote3_serial_group; | |
1976 | remote->remotes[4].group = remote4_serial_group; | |
83e6b40e BT |
1977 | |
1978 | remote->remote_dir = kobject_create_and_add("wacom_remote", | |
1979 | &wacom->hdev->dev.kobj); | |
1980 | if (!remote->remote_dir) | |
1981 | return -ENOMEM; | |
1982 | ||
1983 | error = sysfs_create_files(remote->remote_dir, remote_unpair_attrs); | |
72b236d6 AS |
1984 | |
1985 | if (error) { | |
1986 | hid_err(wacom->hdev, | |
1987 | "cannot create sysfs group err: %d\n", error); | |
1988 | return error; | |
1989 | } | |
1990 | ||
1991 | for (i = 0; i < WACOM_MAX_REMOTES; i++) { | |
a50aac71 | 1992 | wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN; |
e7749f6e | 1993 | remote->remotes[i].serial = 0; |
72b236d6 AS |
1994 | } |
1995 | ||
83e6b40e BT |
1996 | error = devm_add_action_or_reset(&wacom->hdev->dev, |
1997 | wacom_remotes_destroy, wacom); | |
1998 | if (error) | |
1999 | return error; | |
2000 | ||
72b236d6 AS |
2001 | return 0; |
2002 | } | |
2003 | ||
d2d13f18 | 2004 | static struct input_dev *wacom_allocate_input(struct wacom *wacom) |
3aac0ef1 CB |
2005 | { |
2006 | struct input_dev *input_dev; | |
b6c79f2c | 2007 | struct hid_device *hdev = wacom->hdev; |
3aac0ef1 | 2008 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); |
3aac0ef1 | 2009 | |
3dad188e | 2010 | input_dev = devm_input_allocate_device(&hdev->dev); |
d2d13f18 BT |
2011 | if (!input_dev) |
2012 | return NULL; | |
3aac0ef1 | 2013 | |
2bdd163c | 2014 | input_dev->name = wacom_wac->features.name; |
b6c79f2c BT |
2015 | input_dev->phys = hdev->phys; |
2016 | input_dev->dev.parent = &hdev->dev; | |
3aac0ef1 CB |
2017 | input_dev->open = wacom_open; |
2018 | input_dev->close = wacom_close; | |
b6c79f2c BT |
2019 | input_dev->uniq = hdev->uniq; |
2020 | input_dev->id.bustype = hdev->bus; | |
2021 | input_dev->id.vendor = hdev->vendor; | |
12969e3b | 2022 | input_dev->id.product = wacom_wac->pid ? wacom_wac->pid : hdev->product; |
b6c79f2c | 2023 | input_dev->id.version = hdev->version; |
3aac0ef1 CB |
2024 | input_set_drvdata(input_dev, wacom); |
2025 | ||
d2d13f18 BT |
2026 | return input_dev; |
2027 | } | |
2028 | ||
d9f2d203 JG |
2029 | static int wacom_allocate_inputs(struct wacom *wacom) |
2030 | { | |
2031 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
2032 | ||
2033 | wacom_wac->pen_input = wacom_allocate_input(wacom); | |
2034 | wacom_wac->touch_input = wacom_allocate_input(wacom); | |
2035 | wacom_wac->pad_input = wacom_allocate_input(wacom); | |
3dad188e BT |
2036 | if (!wacom_wac->pen_input || |
2037 | !wacom_wac->touch_input || | |
2038 | !wacom_wac->pad_input) | |
d9f2d203 | 2039 | return -ENOMEM; |
d9f2d203 | 2040 | |
2bdd163c | 2041 | wacom_wac->pen_input->name = wacom_wac->pen_name; |
d9f2d203 JG |
2042 | wacom_wac->touch_input->name = wacom_wac->touch_name; |
2043 | wacom_wac->pad_input->name = wacom_wac->pad_name; | |
2044 | ||
2045 | return 0; | |
2046 | } | |
2047 | ||
2546dacd BT |
2048 | static int wacom_register_inputs(struct wacom *wacom) |
2049 | { | |
2a6cdbdd | 2050 | struct input_dev *pen_input_dev, *touch_input_dev, *pad_input_dev; |
2546dacd | 2051 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); |
2636a3f2 | 2052 | int error = 0; |
2546dacd | 2053 | |
2a6cdbdd JG |
2054 | pen_input_dev = wacom_wac->pen_input; |
2055 | touch_input_dev = wacom_wac->touch_input; | |
2546dacd BT |
2056 | pad_input_dev = wacom_wac->pad_input; |
2057 | ||
2a6cdbdd | 2058 | if (!pen_input_dev || !touch_input_dev || !pad_input_dev) |
2546dacd BT |
2059 | return -EINVAL; |
2060 | ||
2a6cdbdd JG |
2061 | error = wacom_setup_pen_input_capabilities(pen_input_dev, wacom_wac); |
2062 | if (error) { | |
2063 | /* no pen in use on this interface */ | |
2064 | input_free_device(pen_input_dev); | |
2065 | wacom_wac->pen_input = NULL; | |
2066 | pen_input_dev = NULL; | |
2067 | } else { | |
2068 | error = input_register_device(pen_input_dev); | |
2069 | if (error) | |
3dad188e | 2070 | goto fail; |
2a6cdbdd JG |
2071 | } |
2072 | ||
2073 | error = wacom_setup_touch_input_capabilities(touch_input_dev, wacom_wac); | |
2074 | if (error) { | |
2075 | /* no touch in use on this interface */ | |
2076 | input_free_device(touch_input_dev); | |
2077 | wacom_wac->touch_input = NULL; | |
2078 | touch_input_dev = NULL; | |
2079 | } else { | |
2080 | error = input_register_device(touch_input_dev); | |
30ebc1ae | 2081 | if (error) |
3dad188e | 2082 | goto fail; |
30ebc1ae | 2083 | } |
1963518b | 2084 | |
d2d13f18 BT |
2085 | error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac); |
2086 | if (error) { | |
2087 | /* no pad in use on this interface */ | |
2088 | input_free_device(pad_input_dev); | |
2089 | wacom_wac->pad_input = NULL; | |
2090 | pad_input_dev = NULL; | |
2091 | } else { | |
2092 | error = input_register_device(pad_input_dev); | |
2093 | if (error) | |
3dad188e | 2094 | goto fail; |
d2d13f18 BT |
2095 | } |
2096 | ||
1963518b | 2097 | return 0; |
3aac0ef1 | 2098 | |
3dad188e BT |
2099 | fail: |
2100 | wacom_wac->pad_input = NULL; | |
2a6cdbdd | 2101 | wacom_wac->touch_input = NULL; |
2a6cdbdd | 2102 | wacom_wac->pen_input = NULL; |
3aac0ef1 CB |
2103 | return error; |
2104 | } | |
2105 | ||
0be01712 JG |
2106 | /* |
2107 | * Not all devices report physical dimensions from HID. | |
2108 | * Compute the default from hardcoded logical dimension | |
2109 | * and resolution before driver overwrites them. | |
2110 | */ | |
2111 | static void wacom_set_default_phy(struct wacom_features *features) | |
2112 | { | |
2113 | if (features->x_resolution) { | |
2114 | features->x_phy = (features->x_max * 100) / | |
2115 | features->x_resolution; | |
2116 | features->y_phy = (features->y_max * 100) / | |
2117 | features->y_resolution; | |
2118 | } | |
2119 | } | |
2120 | ||
2121 | static void wacom_calculate_res(struct wacom_features *features) | |
2122 | { | |
2123 | /* set unit to "100th of a mm" for devices not reported by HID */ | |
2124 | if (!features->unit) { | |
2125 | features->unit = 0x11; | |
2126 | features->unitExpo = -3; | |
2127 | } | |
2128 | ||
2129 | features->x_resolution = wacom_calc_hid_res(features->x_max, | |
2130 | features->x_phy, | |
2131 | features->unit, | |
2132 | features->unitExpo); | |
2133 | features->y_resolution = wacom_calc_hid_res(features->y_max, | |
2134 | features->y_phy, | |
2135 | features->unit, | |
2136 | features->unitExpo); | |
2137 | } | |
2138 | ||
fce9957d JG |
2139 | void wacom_battery_work(struct work_struct *work) |
2140 | { | |
d17d1f17 | 2141 | struct wacom *wacom = container_of(work, struct wacom, battery_work); |
fce9957d JG |
2142 | |
2143 | if ((wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) && | |
59d69bc8 | 2144 | !wacom->battery.battery) { |
fce9957d JG |
2145 | wacom_initialize_battery(wacom); |
2146 | } | |
2147 | else if (!(wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) && | |
59d69bc8 | 2148 | wacom->battery.battery) { |
fce9957d JG |
2149 | wacom_destroy_battery(wacom); |
2150 | } | |
2151 | } | |
2152 | ||
01c846f9 BT |
2153 | static size_t wacom_compute_pktlen(struct hid_device *hdev) |
2154 | { | |
2155 | struct hid_report_enum *report_enum; | |
2156 | struct hid_report *report; | |
2157 | size_t size = 0; | |
2158 | ||
2159 | report_enum = hdev->report_enum + HID_INPUT_REPORT; | |
2160 | ||
2161 | list_for_each_entry(report, &report_enum->report_list, list) { | |
dabb05c6 | 2162 | size_t report_size = hid_report_len(report); |
01c846f9 BT |
2163 | if (report_size > size) |
2164 | size = report_size; | |
2165 | } | |
2166 | ||
2167 | return size; | |
2168 | } | |
2169 | ||
fd5f92b6 | 2170 | static void wacom_update_name(struct wacom *wacom, const char *suffix) |
c24eab4e PC |
2171 | { |
2172 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
2173 | struct wacom_features *features = &wacom_wac->features; | |
44b5250b | 2174 | char name[WACOM_NAME_MAX]; |
c24eab4e PC |
2175 | |
2176 | /* Generic devices name unspecified */ | |
2177 | if ((features->type == HID_GENERIC) && !strcmp("Wacom HID", features->name)) { | |
09dc28ac | 2178 | char *product_name = wacom->hdev->name; |
f2209d4a | 2179 | |
09dc28ac JG |
2180 | if (hid_is_using_ll_driver(wacom->hdev, &usb_hid_driver)) { |
2181 | struct usb_interface *intf = to_usb_interface(wacom->hdev->dev.parent); | |
2182 | struct usb_device *dev = interface_to_usbdev(intf); | |
2183 | product_name = dev->product; | |
2184 | } | |
f2209d4a | 2185 | |
09dc28ac JG |
2186 | if (wacom->hdev->bus == BUS_I2C) { |
2187 | snprintf(name, sizeof(name), "%s %X", | |
2188 | features->name, wacom->hdev->product); | |
2189 | } else if (strstr(product_name, "Wacom") || | |
2190 | strstr(product_name, "wacom") || | |
2191 | strstr(product_name, "WACOM")) { | |
2192 | strlcpy(name, product_name, sizeof(name)); | |
c24eab4e | 2193 | } else { |
09dc28ac | 2194 | snprintf(name, sizeof(name), "Wacom %s", product_name); |
c24eab4e | 2195 | } |
09dc28ac JG |
2196 | |
2197 | /* strip out excess whitespaces */ | |
2198 | while (1) { | |
2199 | char *gap = strstr(name, " "); | |
2200 | if (gap == NULL) | |
2201 | break; | |
2202 | /* shift everything including the terminator */ | |
2203 | memmove(gap, gap+1, strlen(gap)); | |
2204 | } | |
2205 | ||
2206 | /* get rid of trailing whitespace */ | |
2207 | if (name[strlen(name)-1] == ' ') | |
2208 | name[strlen(name)-1] = '\0'; | |
c24eab4e | 2209 | } else { |
44b5250b | 2210 | strlcpy(name, features->name, sizeof(name)); |
c24eab4e PC |
2211 | } |
2212 | ||
9956953e BT |
2213 | snprintf(wacom_wac->name, sizeof(wacom_wac->name), "%s%s", |
2214 | name, suffix); | |
2215 | ||
c24eab4e | 2216 | /* Append the device type to the name */ |
2a6cdbdd | 2217 | snprintf(wacom_wac->pen_name, sizeof(wacom_wac->pen_name), |
fd5f92b6 | 2218 | "%s%s Pen", name, suffix); |
2a6cdbdd | 2219 | snprintf(wacom_wac->touch_name, sizeof(wacom_wac->touch_name), |
fd5f92b6 | 2220 | "%s%s Finger", name, suffix); |
c24eab4e | 2221 | snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name), |
fd5f92b6 | 2222 | "%s%s Pad", name, suffix); |
c24eab4e PC |
2223 | } |
2224 | ||
84dfbd7f BT |
2225 | static void wacom_release_resources(struct wacom *wacom) |
2226 | { | |
2227 | struct hid_device *hdev = wacom->hdev; | |
2228 | ||
2229 | if (!wacom->resources) | |
2230 | return; | |
2231 | ||
2232 | devres_release_group(&hdev->dev, wacom); | |
2233 | ||
2234 | wacom->resources = false; | |
2235 | ||
2236 | wacom->wacom_wac.pen_input = NULL; | |
2237 | wacom->wacom_wac.touch_input = NULL; | |
2238 | wacom->wacom_wac.pad_input = NULL; | |
2239 | } | |
2240 | ||
d2ec58ae AAS |
2241 | static void wacom_set_shared_values(struct wacom_wac *wacom_wac) |
2242 | { | |
2243 | if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH) { | |
2244 | wacom_wac->shared->type = wacom_wac->features.type; | |
2245 | wacom_wac->shared->touch_input = wacom_wac->touch_input; | |
2246 | } | |
2247 | ||
d793ff81 | 2248 | if (wacom_wac->has_mute_touch_switch) { |
d2ec58ae | 2249 | wacom_wac->shared->has_mute_touch_switch = true; |
d793ff81 PC |
2250 | wacom_wac->shared->is_touch_on = true; |
2251 | } | |
d2ec58ae AAS |
2252 | |
2253 | if (wacom_wac->shared->has_mute_touch_switch && | |
2254 | wacom_wac->shared->touch_input) { | |
2255 | set_bit(EV_SW, wacom_wac->shared->touch_input->evbit); | |
2256 | input_set_capability(wacom_wac->shared->touch_input, EV_SW, | |
2257 | SW_MUTE_DEVICE); | |
2258 | } | |
2259 | } | |
2260 | ||
fd5f92b6 | 2261 | static int wacom_parse_and_register(struct wacom *wacom, bool wireless) |
3bea733a | 2262 | { |
c58ac3a8 BT |
2263 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; |
2264 | struct wacom_features *features = &wacom_wac->features; | |
2265 | struct hid_device *hdev = wacom->hdev; | |
e33da8a5 | 2266 | int error; |
7704ac93 | 2267 | unsigned int connect_mask = HID_CONNECT_HIDRAW; |
3bea733a | 2268 | |
01c846f9 | 2269 | features->pktlen = wacom_compute_pktlen(hdev); |
c58ac3a8 BT |
2270 | if (features->pktlen > WACOM_PKGLEN_MAX) |
2271 | return -EINVAL; | |
3bea733a | 2272 | |
84dfbd7f BT |
2273 | if (!devres_open_group(&hdev->dev, wacom, GFP_KERNEL)) |
2274 | return -ENOMEM; | |
2275 | ||
2276 | wacom->resources = true; | |
2277 | ||
3f14a63a JG |
2278 | error = wacom_allocate_inputs(wacom); |
2279 | if (error) | |
3888b0d5 | 2280 | goto fail; |
494078b0 | 2281 | |
8c97a765 BT |
2282 | /* |
2283 | * Bamboo Pad has a generic hid handling for the Pen, and we switch it | |
2284 | * into debug mode for the touch part. | |
2285 | * We ignore the other interfaces. | |
2286 | */ | |
2287 | if (features->type == BAMBOO_PAD) { | |
2288 | if (features->pktlen == WACOM_PKGLEN_PENABLED) { | |
2289 | features->type = HID_GENERIC; | |
2290 | } else if ((features->pktlen != WACOM_PKGLEN_BPAD_TOUCH) && | |
2291 | (features->pktlen != WACOM_PKGLEN_BPAD_TOUCH_USB)) { | |
2292 | error = -ENODEV; | |
3888b0d5 | 2293 | goto fail; |
8c97a765 BT |
2294 | } |
2295 | } | |
2296 | ||
401d7d10 PC |
2297 | /* set the default size in case we do not get them from hid */ |
2298 | wacom_set_default_phy(features); | |
2299 | ||
f393ee2b | 2300 | /* Retrieve the physical and logical size for touch devices */ |
c669fb2b | 2301 | wacom_retrieve_hid_descriptor(hdev, features); |
42f4f272 | 2302 | wacom_setup_device_quirks(wacom); |
042628ab | 2303 | |
aa86b18c JG |
2304 | if (features->device_type == WACOM_DEVICETYPE_NONE && |
2305 | features->type != WIRELESS) { | |
8e116d31 JG |
2306 | error = features->type == HID_GENERIC ? -ENODEV : 0; |
2307 | ||
042628ab | 2308 | dev_warn(&hdev->dev, "Unknown device_type for '%s'. %s.", |
8e116d31 JG |
2309 | hdev->name, |
2310 | error ? "Ignoring" : "Assuming pen"); | |
2311 | ||
2312 | if (error) | |
3888b0d5 | 2313 | goto fail; |
042628ab | 2314 | |
aa86b18c | 2315 | features->device_type |= WACOM_DEVICETYPE_PEN; |
042628ab JG |
2316 | } |
2317 | ||
401d7d10 PC |
2318 | wacom_calculate_res(features); |
2319 | ||
fd5f92b6 | 2320 | wacom_update_name(wacom, wireless ? " (WL)" : ""); |
4492efff | 2321 | |
8b407359 AAS |
2322 | /* pen only Bamboo neither support touch nor pad */ |
2323 | if ((features->type == BAMBOO_PEN) && | |
2324 | ((features->device_type & WACOM_DEVICETYPE_TOUCH) || | |
2325 | (features->device_type & WACOM_DEVICETYPE_PAD))) { | |
2326 | error = -ENODEV; | |
2327 | goto fail; | |
2328 | } | |
2329 | ||
a9ce7856 JG |
2330 | error = wacom_add_shared_data(hdev); |
2331 | if (error) | |
2332 | goto fail; | |
49b764ae | 2333 | |
ccad85cc | 2334 | if (!(features->device_type & WACOM_DEVICETYPE_WL_MONITOR) && |
f81a1295 BT |
2335 | (features->quirks & WACOM_QUIRK_BATTERY)) { |
2336 | error = wacom_initialize_battery(wacom); | |
2337 | if (error) | |
3888b0d5 | 2338 | goto fail; |
f81a1295 BT |
2339 | } |
2340 | ||
3f14a63a JG |
2341 | error = wacom_register_inputs(wacom); |
2342 | if (error) | |
3888b0d5 | 2343 | goto fail; |
f81a1295 | 2344 | |
b62f6465 | 2345 | if (wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD) { |
85d2c77b BT |
2346 | error = wacom_initialize_leds(wacom); |
2347 | if (error) | |
3888b0d5 | 2348 | goto fail; |
85d2c77b | 2349 | |
83e6b40e | 2350 | error = wacom_initialize_remotes(wacom); |
b62f6465 | 2351 | if (error) |
3888b0d5 | 2352 | goto fail; |
b62f6465 BT |
2353 | } |
2354 | ||
7704ac93 BT |
2355 | if (features->type == HID_GENERIC) |
2356 | connect_mask |= HID_CONNECT_DRIVER; | |
2357 | ||
29b47391 | 2358 | /* Regular HID work starts now */ |
7704ac93 | 2359 | error = hid_hw_start(hdev, connect_mask); |
29b47391 BT |
2360 | if (error) { |
2361 | hid_err(hdev, "hw start failed\n"); | |
3888b0d5 | 2362 | goto fail; |
d3825d51 | 2363 | } |
961794a0 | 2364 | |
fd5f92b6 BT |
2365 | if (!wireless) { |
2366 | /* Note that if query fails it is not a hard failure */ | |
a544c619 | 2367 | wacom_query_tablet_data(wacom); |
fd5f92b6 | 2368 | } |
86e88f0e JG |
2369 | |
2370 | /* touch only Bamboo doesn't support pen */ | |
2371 | if ((features->type == BAMBOO_TOUCH) && | |
2372 | (features->device_type & WACOM_DEVICETYPE_PEN)) { | |
4d20c332 AAS |
2373 | cancel_delayed_work_sync(&wacom->init_work); |
2374 | _wacom_query_tablet_data(wacom); | |
86e88f0e | 2375 | error = -ENODEV; |
b62f6465 | 2376 | goto fail_quirks; |
86e88f0e JG |
2377 | } |
2378 | ||
ccad85cc | 2379 | if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR) |
29b47391 BT |
2380 | error = hid_hw_open(hdev); |
2381 | ||
d2ec58ae | 2382 | wacom_set_shared_values(wacom_wac); |
84dfbd7f BT |
2383 | devres_close_group(&hdev->dev, wacom); |
2384 | ||
3bea733a PC |
2385 | return 0; |
2386 | ||
b62f6465 | 2387 | fail_quirks: |
c58ac3a8 | 2388 | hid_hw_stop(hdev); |
3888b0d5 | 2389 | fail: |
84dfbd7f | 2390 | wacom_release_resources(wacom); |
c58ac3a8 BT |
2391 | return error; |
2392 | } | |
2393 | ||
a2f091af BT |
2394 | static void wacom_wireless_work(struct work_struct *work) |
2395 | { | |
d17d1f17 | 2396 | struct wacom *wacom = container_of(work, struct wacom, wireless_work); |
a2f091af BT |
2397 | struct usb_device *usbdev = wacom->usbdev; |
2398 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
2399 | struct hid_device *hdev1, *hdev2; | |
2400 | struct wacom *wacom1, *wacom2; | |
2401 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
2402 | int error; | |
2403 | ||
2404 | /* | |
2405 | * Regardless if this is a disconnect or a new tablet, | |
2406 | * remove any existing input and battery devices. | |
2407 | */ | |
2408 | ||
2409 | wacom_destroy_battery(wacom); | |
2410 | ||
2411 | /* Stylus interface */ | |
2412 | hdev1 = usb_get_intfdata(usbdev->config->interface[1]); | |
2413 | wacom1 = hid_get_drvdata(hdev1); | |
2414 | wacom_wac1 = &(wacom1->wacom_wac); | |
84dfbd7f | 2415 | wacom_release_resources(wacom1); |
a2f091af BT |
2416 | |
2417 | /* Touch interface */ | |
2418 | hdev2 = usb_get_intfdata(usbdev->config->interface[2]); | |
2419 | wacom2 = hid_get_drvdata(hdev2); | |
2420 | wacom_wac2 = &(wacom2->wacom_wac); | |
84dfbd7f | 2421 | wacom_release_resources(wacom2); |
a2f091af BT |
2422 | |
2423 | if (wacom_wac->pid == 0) { | |
2424 | hid_info(wacom->hdev, "wireless tablet disconnected\n"); | |
a2f091af BT |
2425 | } else { |
2426 | const struct hid_device_id *id = wacom_ids; | |
2427 | ||
2428 | hid_info(wacom->hdev, "wireless tablet connected with PID %x\n", | |
2429 | wacom_wac->pid); | |
2430 | ||
2431 | while (id->bus) { | |
2432 | if (id->vendor == USB_VENDOR_ID_WACOM && | |
2433 | id->product == wacom_wac->pid) | |
2434 | break; | |
2435 | id++; | |
2436 | } | |
2437 | ||
2438 | if (!id->bus) { | |
2439 | hid_info(wacom->hdev, "ignoring unknown PID.\n"); | |
2440 | return; | |
2441 | } | |
2442 | ||
2443 | /* Stylus interface */ | |
2444 | wacom_wac1->features = | |
2445 | *((struct wacom_features *)id->driver_data); | |
fd5f92b6 | 2446 | |
a2f091af | 2447 | wacom_wac1->pid = wacom_wac->pid; |
fd5f92b6 BT |
2448 | hid_hw_stop(hdev1); |
2449 | error = wacom_parse_and_register(wacom1, true); | |
a2f091af BT |
2450 | if (error) |
2451 | goto fail; | |
2452 | ||
2453 | /* Touch interface */ | |
2454 | if (wacom_wac1->features.touch_max || | |
2455 | (wacom_wac1->features.type >= INTUOSHT && | |
2456 | wacom_wac1->features.type <= BAMBOO_PT)) { | |
2457 | wacom_wac2->features = | |
2458 | *((struct wacom_features *)id->driver_data); | |
a2f091af | 2459 | wacom_wac2->pid = wacom_wac->pid; |
fd5f92b6 BT |
2460 | hid_hw_stop(hdev2); |
2461 | error = wacom_parse_and_register(wacom2, true); | |
a2f091af BT |
2462 | if (error) |
2463 | goto fail; | |
a2f091af BT |
2464 | } |
2465 | ||
9956953e BT |
2466 | strlcpy(wacom_wac->name, wacom_wac1->name, |
2467 | sizeof(wacom_wac->name)); | |
a2f091af BT |
2468 | error = wacom_initialize_battery(wacom); |
2469 | if (error) | |
2470 | goto fail; | |
2471 | } | |
2472 | ||
2473 | return; | |
2474 | ||
2475 | fail: | |
84dfbd7f | 2476 | wacom_release_resources(wacom1); |
84dfbd7f | 2477 | wacom_release_resources(wacom2); |
a2f091af BT |
2478 | return; |
2479 | } | |
2480 | ||
04bfa27b BT |
2481 | static void wacom_remote_destroy_one(struct wacom *wacom, unsigned int index) |
2482 | { | |
2483 | struct wacom_remote *remote = wacom->remote; | |
e7749f6e | 2484 | u32 serial = remote->remotes[index].serial; |
04bfa27b | 2485 | int i; |
7c35dc3c BT |
2486 | unsigned long flags; |
2487 | ||
791ae273 AAS |
2488 | for (i = 0; i < WACOM_MAX_REMOTES; i++) { |
2489 | if (remote->remotes[i].serial == serial) { | |
04bfa27b | 2490 | |
791ae273 AAS |
2491 | spin_lock_irqsave(&remote->remote_lock, flags); |
2492 | remote->remotes[i].registered = false; | |
2493 | spin_unlock_irqrestore(&remote->remote_lock, flags); | |
9f1015d4 | 2494 | |
791ae273 AAS |
2495 | if (remote->remotes[i].battery.battery) |
2496 | devres_release_group(&wacom->hdev->dev, | |
2497 | &remote->remotes[i].battery.bat_desc); | |
2498 | ||
2499 | if (remote->remotes[i].group.name) | |
2500 | devres_release_group(&wacom->hdev->dev, | |
2501 | &remote->remotes[i]); | |
04bfa27b | 2502 | |
e7749f6e BT |
2503 | remote->remotes[i].serial = 0; |
2504 | remote->remotes[i].group.name = NULL; | |
9f1015d4 | 2505 | remote->remotes[i].battery.battery = NULL; |
04bfa27b BT |
2506 | wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN; |
2507 | } | |
2508 | } | |
2509 | } | |
2510 | ||
2511 | static int wacom_remote_create_one(struct wacom *wacom, u32 serial, | |
2512 | unsigned int index) | |
2513 | { | |
2514 | struct wacom_remote *remote = wacom->remote; | |
f9036bd4 | 2515 | struct device *dev = &wacom->hdev->dev; |
04bfa27b BT |
2516 | int error, k; |
2517 | ||
2518 | /* A remote can pair more than once with an EKR, | |
2519 | * check to make sure this serial isn't already paired. | |
2520 | */ | |
2521 | for (k = 0; k < WACOM_MAX_REMOTES; k++) { | |
e7749f6e | 2522 | if (remote->remotes[k].serial == serial) |
04bfa27b BT |
2523 | break; |
2524 | } | |
2525 | ||
2526 | if (k < WACOM_MAX_REMOTES) { | |
e7749f6e | 2527 | remote->remotes[index].serial = serial; |
04bfa27b BT |
2528 | return 0; |
2529 | } | |
2530 | ||
e7749f6e | 2531 | if (!devres_open_group(dev, &remote->remotes[index], GFP_KERNEL)) |
f9036bd4 BT |
2532 | return -ENOMEM; |
2533 | ||
04bfa27b BT |
2534 | error = wacom_remote_create_attr_group(wacom, serial, index); |
2535 | if (error) | |
f9036bd4 | 2536 | goto fail; |
04bfa27b | 2537 | |
7c35dc3c BT |
2538 | remote->remotes[index].input = wacom_allocate_input(wacom); |
2539 | if (!remote->remotes[index].input) { | |
2540 | error = -ENOMEM; | |
2541 | goto fail; | |
2542 | } | |
2543 | remote->remotes[index].input->uniq = remote->remotes[index].group.name; | |
2544 | remote->remotes[index].input->name = wacom->wacom_wac.pad_name; | |
2545 | ||
2546 | if (!remote->remotes[index].input->name) { | |
2547 | error = -EINVAL; | |
2548 | goto fail; | |
2549 | } | |
2550 | ||
2551 | error = wacom_setup_pad_input_capabilities(remote->remotes[index].input, | |
2552 | &wacom->wacom_wac); | |
2553 | if (error) | |
2554 | goto fail; | |
2555 | ||
e7749f6e | 2556 | remote->remotes[index].serial = serial; |
04bfa27b | 2557 | |
7c35dc3c BT |
2558 | error = input_register_device(remote->remotes[index].input); |
2559 | if (error) | |
2560 | goto fail; | |
2561 | ||
97f5541f BT |
2562 | error = wacom_led_groups_alloc_and_register_one( |
2563 | &remote->remotes[index].input->dev, | |
2564 | wacom, index, 3, true); | |
2565 | if (error) | |
2566 | goto fail; | |
2567 | ||
7c35dc3c BT |
2568 | remote->remotes[index].registered = true; |
2569 | ||
e7749f6e | 2570 | devres_close_group(dev, &remote->remotes[index]); |
04bfa27b | 2571 | return 0; |
f9036bd4 BT |
2572 | |
2573 | fail: | |
e7749f6e BT |
2574 | devres_release_group(dev, &remote->remotes[index]); |
2575 | remote->remotes[index].serial = 0; | |
f9036bd4 | 2576 | return error; |
04bfa27b BT |
2577 | } |
2578 | ||
9f1015d4 BT |
2579 | static int wacom_remote_attach_battery(struct wacom *wacom, int index) |
2580 | { | |
2581 | struct wacom_remote *remote = wacom->remote; | |
2582 | int error; | |
2583 | ||
2584 | if (!remote->remotes[index].registered) | |
2585 | return 0; | |
2586 | ||
2587 | if (remote->remotes[index].battery.battery) | |
2588 | return 0; | |
2589 | ||
2590 | if (wacom->led.groups[index].select == WACOM_STATUS_UNKNOWN) | |
2591 | return 0; | |
2592 | ||
2593 | error = __wacom_initialize_battery(wacom, | |
2594 | &wacom->remote->remotes[index].battery); | |
2595 | if (error) | |
2596 | return error; | |
2597 | ||
2598 | return 0; | |
2599 | } | |
2600 | ||
e6f2813a BT |
2601 | static void wacom_remote_work(struct work_struct *work) |
2602 | { | |
2603 | struct wacom *wacom = container_of(work, struct wacom, remote_work); | |
83e6b40e | 2604 | struct wacom_remote *remote = wacom->remote; |
e6f2813a BT |
2605 | struct wacom_remote_data data; |
2606 | unsigned long flags; | |
2607 | unsigned int count; | |
2608 | u32 serial; | |
04bfa27b | 2609 | int i; |
e6f2813a | 2610 | |
83e6b40e | 2611 | spin_lock_irqsave(&remote->remote_lock, flags); |
e6f2813a | 2612 | |
83e6b40e | 2613 | count = kfifo_out(&remote->remote_fifo, &data, sizeof(data)); |
e6f2813a BT |
2614 | |
2615 | if (count != sizeof(data)) { | |
2616 | hid_err(wacom->hdev, | |
2617 | "workitem triggered without status available\n"); | |
83e6b40e | 2618 | spin_unlock_irqrestore(&remote->remote_lock, flags); |
e6f2813a BT |
2619 | return; |
2620 | } | |
2621 | ||
83e6b40e | 2622 | if (!kfifo_is_empty(&remote->remote_fifo)) |
e6f2813a BT |
2623 | wacom_schedule_work(&wacom->wacom_wac, WACOM_WORKER_REMOTE); |
2624 | ||
83e6b40e | 2625 | spin_unlock_irqrestore(&remote->remote_lock, flags); |
e6f2813a BT |
2626 | |
2627 | for (i = 0; i < WACOM_MAX_REMOTES; i++) { | |
2628 | serial = data.remote[i].serial; | |
2629 | if (data.remote[i].connected) { | |
2630 | ||
9f1015d4 BT |
2631 | if (remote->remotes[i].serial == serial) { |
2632 | wacom_remote_attach_battery(wacom, i); | |
e6f2813a | 2633 | continue; |
9f1015d4 | 2634 | } |
e6f2813a | 2635 | |
e7749f6e | 2636 | if (remote->remotes[i].serial) |
04bfa27b | 2637 | wacom_remote_destroy_one(wacom, i); |
e6f2813a | 2638 | |
04bfa27b | 2639 | wacom_remote_create_one(wacom, serial, i); |
e6f2813a | 2640 | |
e7749f6e | 2641 | } else if (remote->remotes[i].serial) { |
04bfa27b | 2642 | wacom_remote_destroy_one(wacom, i); |
e6f2813a BT |
2643 | } |
2644 | } | |
2645 | } | |
2646 | ||
4082da80 BT |
2647 | static void wacom_mode_change_work(struct work_struct *work) |
2648 | { | |
2649 | struct wacom *wacom = container_of(work, struct wacom, mode_change_work); | |
2650 | struct wacom_shared *shared = wacom->wacom_wac.shared; | |
2651 | struct wacom *wacom1 = NULL; | |
2652 | struct wacom *wacom2 = NULL; | |
2653 | bool is_direct = wacom->wacom_wac.is_direct_mode; | |
2654 | int error = 0; | |
2655 | ||
2656 | if (shared->pen) { | |
2657 | wacom1 = hid_get_drvdata(shared->pen); | |
2658 | wacom_release_resources(wacom1); | |
2659 | hid_hw_stop(wacom1->hdev); | |
2660 | wacom1->wacom_wac.has_mode_change = true; | |
2661 | wacom1->wacom_wac.is_direct_mode = is_direct; | |
2662 | } | |
2663 | ||
2664 | if (shared->touch) { | |
2665 | wacom2 = hid_get_drvdata(shared->touch); | |
2666 | wacom_release_resources(wacom2); | |
2667 | hid_hw_stop(wacom2->hdev); | |
2668 | wacom2->wacom_wac.has_mode_change = true; | |
2669 | wacom2->wacom_wac.is_direct_mode = is_direct; | |
2670 | } | |
2671 | ||
2672 | if (wacom1) { | |
2673 | error = wacom_parse_and_register(wacom1, false); | |
2674 | if (error) | |
2675 | return; | |
2676 | } | |
2677 | ||
2678 | if (wacom2) { | |
2679 | error = wacom_parse_and_register(wacom2, false); | |
2680 | if (error) | |
2681 | return; | |
2682 | } | |
2683 | ||
a2f091af BT |
2684 | return; |
2685 | } | |
2686 | ||
c58ac3a8 BT |
2687 | static int wacom_probe(struct hid_device *hdev, |
2688 | const struct hid_device_id *id) | |
2689 | { | |
2690 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); | |
2691 | struct usb_device *dev = interface_to_usbdev(intf); | |
2692 | struct wacom *wacom; | |
2693 | struct wacom_wac *wacom_wac; | |
2694 | struct wacom_features *features; | |
2695 | int error; | |
2696 | ||
2697 | if (!id->driver_data) | |
2698 | return -EINVAL; | |
2699 | ||
2700 | hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; | |
2701 | ||
2702 | /* hid-core sets this quirk for the boot interface */ | |
2703 | hdev->quirks &= ~HID_QUIRK_NOGET; | |
2704 | ||
19b64330 | 2705 | wacom = devm_kzalloc(&hdev->dev, sizeof(struct wacom), GFP_KERNEL); |
c58ac3a8 BT |
2706 | if (!wacom) |
2707 | return -ENOMEM; | |
2708 | ||
2709 | hid_set_drvdata(hdev, wacom); | |
2710 | wacom->hdev = hdev; | |
2711 | ||
2712 | wacom_wac = &wacom->wacom_wac; | |
2713 | wacom_wac->features = *((struct wacom_features *)id->driver_data); | |
2714 | features = &wacom_wac->features; | |
2715 | ||
2716 | if (features->check_for_hid_type && features->hid_type != hdev->type) { | |
2717 | error = -ENODEV; | |
3888b0d5 | 2718 | goto fail; |
c58ac3a8 BT |
2719 | } |
2720 | ||
83417206 JG |
2721 | error = kfifo_alloc(&wacom_wac->pen_fifo, WACOM_PKGLEN_MAX, GFP_KERNEL); |
2722 | if (error) | |
2723 | goto fail; | |
2724 | ||
c6fa1aeb | 2725 | wacom_wac->hid_data.inputmode = -1; |
326ea2a9 | 2726 | wacom_wac->mode_report = -1; |
c6fa1aeb | 2727 | |
c58ac3a8 BT |
2728 | wacom->usbdev = dev; |
2729 | wacom->intf = intf; | |
2730 | mutex_init(&wacom->lock); | |
a544c619 | 2731 | INIT_DELAYED_WORK(&wacom->init_work, wacom_init_work); |
d17d1f17 BT |
2732 | INIT_WORK(&wacom->wireless_work, wacom_wireless_work); |
2733 | INIT_WORK(&wacom->battery_work, wacom_battery_work); | |
e6f2813a | 2734 | INIT_WORK(&wacom->remote_work, wacom_remote_work); |
4082da80 | 2735 | INIT_WORK(&wacom->mode_change_work, wacom_mode_change_work); |
c58ac3a8 BT |
2736 | |
2737 | /* ask for the report descriptor to be loaded by HID */ | |
2738 | error = hid_parse(hdev); | |
2739 | if (error) { | |
2740 | hid_err(hdev, "parse failed\n"); | |
3888b0d5 | 2741 | goto fail; |
c58ac3a8 BT |
2742 | } |
2743 | ||
fd5f92b6 | 2744 | error = wacom_parse_and_register(wacom, false); |
c58ac3a8 | 2745 | if (error) |
3888b0d5 | 2746 | goto fail; |
c58ac3a8 BT |
2747 | |
2748 | if (hdev->bus == BUS_BLUETOOTH) { | |
2749 | error = device_create_file(&hdev->dev, &dev_attr_speed); | |
2750 | if (error) | |
2751 | hid_warn(hdev, | |
2752 | "can't create sysfs speed attribute err: %d\n", | |
2753 | error); | |
2754 | } | |
2755 | ||
2756 | return 0; | |
2757 | ||
3888b0d5 | 2758 | fail: |
29b47391 | 2759 | hid_set_drvdata(hdev, NULL); |
5014186d | 2760 | return error; |
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 JG |
2788 | kfifo_free(&wacom_wac->pen_fifo); |
2789 | ||
29b47391 | 2790 | hid_set_drvdata(hdev, NULL); |
e7224094 ON |
2791 | } |
2792 | ||
41a74581 | 2793 | #ifdef CONFIG_PM |
29b47391 | 2794 | static int wacom_resume(struct hid_device *hdev) |
e7224094 | 2795 | { |
29b47391 | 2796 | struct wacom *wacom = hid_get_drvdata(hdev); |
e7224094 ON |
2797 | |
2798 | mutex_lock(&wacom->lock); | |
38101475 PC |
2799 | |
2800 | /* switch to wacom mode first */ | |
a544c619 | 2801 | _wacom_query_tablet_data(wacom); |
5d7e7d47 | 2802 | wacom_led_control(wacom); |
38101475 | 2803 | |
e7224094 ON |
2804 | mutex_unlock(&wacom->lock); |
2805 | ||
29b47391 | 2806 | return 0; |
e7224094 ON |
2807 | } |
2808 | ||
29b47391 | 2809 | static int wacom_reset_resume(struct hid_device *hdev) |
e7224094 | 2810 | { |
29b47391 | 2811 | return wacom_resume(hdev); |
3bea733a | 2812 | } |
41a74581 | 2813 | #endif /* CONFIG_PM */ |
3bea733a | 2814 | |
29b47391 | 2815 | static struct hid_driver wacom_driver = { |
3bea733a | 2816 | .name = "wacom", |
b036f6fb | 2817 | .id_table = wacom_ids, |
3bea733a | 2818 | .probe = wacom_probe, |
29b47391 | 2819 | .remove = wacom_remove, |
7704ac93 | 2820 | .report = wacom_wac_report, |
29b47391 | 2821 | #ifdef CONFIG_PM |
e7224094 ON |
2822 | .resume = wacom_resume, |
2823 | .reset_resume = wacom_reset_resume, | |
29b47391 BT |
2824 | #endif |
2825 | .raw_event = wacom_raw_event, | |
3bea733a | 2826 | }; |
29b47391 | 2827 | module_hid_driver(wacom_driver); |
f2e0a7d4 BT |
2828 | |
2829 | MODULE_VERSION(DRIVER_VERSION); | |
2830 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
2831 | MODULE_DESCRIPTION(DRIVER_DESC); | |
7021b600 | 2832 | MODULE_LICENSE("GPL"); |