Commit | Line | Data |
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2874c5fd | 1 | // SPDX-License-Identifier: GPL-2.0-or-later |
3bea733a | 2 | /* |
232f5693 | 3 | * USB Wacom tablet support - system specific code |
3bea733a PC |
4 | */ |
5 | ||
3bea733a | 6 | #include "wacom_wac.h" |
51269fe8 | 7 | #include "wacom.h" |
b58ba1ba | 8 | #include <linux/input/mt.h> |
3bea733a | 9 | |
a417ea44 | 10 | #define WAC_MSG_RETRIES 5 |
5d7e7d47 EH |
11 | #define WAC_CMD_RETRIES 10 |
12 | ||
e0984bc3 PC |
13 | #define DEV_ATTR_RW_PERM (S_IRUGO | S_IWUSR | S_IWGRP) |
14 | #define DEV_ATTR_WO_PERM (S_IWUSR | S_IWGRP) | |
72b236d6 | 15 | #define DEV_ATTR_RO_PERM (S_IRUSR | S_IRGRP) |
e0984bc3 | 16 | |
c64d8834 PC |
17 | static int wacom_get_report(struct hid_device *hdev, u8 type, u8 *buf, |
18 | size_t size, unsigned int retries) | |
3bea733a | 19 | { |
5d7e7d47 EH |
20 | int retval; |
21 | ||
22 | do { | |
c64d8834 | 23 | retval = hid_hw_raw_request(hdev, buf[0], buf, size, type, |
27b20a9d | 24 | HID_REQ_GET_REPORT); |
aef3156d JG |
25 | } while ((retval == -ETIMEDOUT || retval == -EAGAIN) && --retries); |
26 | ||
27 | if (retval < 0) | |
28 | hid_err(hdev, "wacom_get_report: ran out of retries " | |
29 | "(last error = %d)\n", retval); | |
5d7e7d47 EH |
30 | |
31 | return retval; | |
3bea733a PC |
32 | } |
33 | ||
296b7378 PF |
34 | static int wacom_set_report(struct hid_device *hdev, u8 type, u8 *buf, |
35 | size_t size, unsigned int retries) | |
3bea733a | 36 | { |
5d7e7d47 EH |
37 | int retval; |
38 | ||
39 | do { | |
296b7378 | 40 | retval = hid_hw_raw_request(hdev, buf[0], buf, size, type, |
27b20a9d | 41 | HID_REQ_SET_REPORT); |
aef3156d JG |
42 | } while ((retval == -ETIMEDOUT || retval == -EAGAIN) && --retries); |
43 | ||
44 | if (retval < 0) | |
45 | hid_err(hdev, "wacom_set_report: ran out of retries " | |
46 | "(last error = %d)\n", retval); | |
5d7e7d47 EH |
47 | |
48 | return retval; | |
3bea733a PC |
49 | } |
50 | ||
83417206 JG |
51 | static void wacom_wac_queue_insert(struct hid_device *hdev, |
52 | struct kfifo_rec_ptr_2 *fifo, | |
53 | u8 *raw_data, int size) | |
54 | { | |
55 | bool warned = false; | |
56 | ||
57 | while (kfifo_avail(fifo) < size) { | |
58 | if (!warned) | |
59 | hid_warn(hdev, "%s: kfifo has filled, starting to drop events\n", __func__); | |
60 | warned = true; | |
61 | ||
62 | kfifo_skip(fifo); | |
63 | } | |
64 | ||
65 | kfifo_in(fifo, raw_data, size); | |
66 | } | |
67 | ||
68 | static void wacom_wac_queue_flush(struct hid_device *hdev, | |
69 | struct kfifo_rec_ptr_2 *fifo) | |
70 | { | |
71 | while (!kfifo_is_empty(fifo)) { | |
72 | u8 buf[WACOM_PKGLEN_MAX]; | |
73 | int size; | |
74 | int err; | |
75 | ||
76 | size = kfifo_out(fifo, buf, sizeof(buf)); | |
77 | err = hid_report_raw_event(hdev, HID_INPUT_REPORT, buf, size, false); | |
78 | if (err) { | |
79 | hid_warn(hdev, "%s: unable to flush event due to error %d\n", | |
80 | __func__, err); | |
81 | } | |
82 | } | |
83 | } | |
84 | ||
85 | static int wacom_wac_pen_serial_enforce(struct hid_device *hdev, | |
073b50bc | 86 | struct hid_report *report, u8 *raw_data, int report_size) |
83417206 JG |
87 | { |
88 | struct wacom *wacom = hid_get_drvdata(hdev); | |
89 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
90 | struct wacom_features *features = &wacom_wac->features; | |
91 | bool flush = false; | |
92 | bool insert = false; | |
93 | int i, j; | |
94 | ||
95 | if (wacom_wac->serial[0] || !(features->quirks & WACOM_QUIRK_TOOLSERIAL)) | |
96 | return 0; | |
97 | ||
98 | /* Queue events which have invalid tool type or serial number */ | |
99 | for (i = 0; i < report->maxfield; i++) { | |
100 | for (j = 0; j < report->field[i]->maxusage; j++) { | |
101 | struct hid_field *field = report->field[i]; | |
102 | struct hid_usage *usage = &field->usage[j]; | |
103 | unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid); | |
104 | unsigned int offset; | |
105 | unsigned int size; | |
106 | unsigned int value; | |
107 | ||
108 | if (equivalent_usage != HID_DG_INRANGE && | |
109 | equivalent_usage != HID_DG_TOOLSERIALNUMBER && | |
110 | equivalent_usage != WACOM_HID_WD_SERIALHI && | |
111 | equivalent_usage != WACOM_HID_WD_TOOLTYPE) | |
112 | continue; | |
113 | ||
114 | offset = field->report_offset; | |
115 | size = field->report_size; | |
116 | value = hid_field_extract(hdev, raw_data+1, offset + j * size, size); | |
117 | ||
118 | /* If we go out of range, we need to flush the queue ASAP */ | |
119 | if (equivalent_usage == HID_DG_INRANGE) | |
120 | value = !value; | |
121 | ||
122 | if (value) { | |
123 | flush = true; | |
124 | switch (equivalent_usage) { | |
125 | case HID_DG_TOOLSERIALNUMBER: | |
126 | wacom_wac->serial[0] = value; | |
127 | break; | |
128 | ||
129 | case WACOM_HID_WD_SERIALHI: | |
130 | wacom_wac->serial[0] |= ((__u64)value) << 32; | |
131 | break; | |
132 | ||
133 | case WACOM_HID_WD_TOOLTYPE: | |
134 | wacom_wac->id[0] = value; | |
135 | break; | |
136 | } | |
137 | } | |
138 | else { | |
139 | insert = true; | |
140 | } | |
141 | } | |
142 | } | |
143 | ||
144 | if (flush) | |
179e8e47 | 145 | wacom_wac_queue_flush(hdev, wacom_wac->pen_fifo); |
83417206 | 146 | else if (insert) |
179e8e47 | 147 | wacom_wac_queue_insert(hdev, wacom_wac->pen_fifo, |
073b50bc | 148 | raw_data, report_size); |
83417206 JG |
149 | |
150 | return insert && !flush; | |
151 | } | |
152 | ||
29b47391 BT |
153 | static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report, |
154 | u8 *raw_data, int size) | |
3bea733a | 155 | { |
29b47391 | 156 | struct wacom *wacom = hid_get_drvdata(hdev); |
3bea733a | 157 | |
1db1f392 JG |
158 | if (wacom->wacom_wac.features.type == BOOTLOADER) |
159 | return 0; | |
160 | ||
29b47391 BT |
161 | if (size > WACOM_PKGLEN_MAX) |
162 | return 1; | |
3bea733a | 163 | |
83417206 JG |
164 | if (wacom_wac_pen_serial_enforce(hdev, report, raw_data, size)) |
165 | return -1; | |
166 | ||
29b47391 | 167 | memcpy(wacom->wacom_wac.data, raw_data, size); |
3bea733a | 168 | |
29b47391 BT |
169 | wacom_wac_irq(&wacom->wacom_wac, size); |
170 | ||
171 | return 0; | |
3bea733a PC |
172 | } |
173 | ||
3bea733a PC |
174 | static int wacom_open(struct input_dev *dev) |
175 | { | |
7791bdae | 176 | struct wacom *wacom = input_get_drvdata(dev); |
29b47391 | 177 | |
dff67416 | 178 | return hid_hw_open(wacom->hdev); |
3bea733a PC |
179 | } |
180 | ||
181 | static void wacom_close(struct input_dev *dev) | |
182 | { | |
7791bdae | 183 | struct wacom *wacom = input_get_drvdata(dev); |
3bea733a | 184 | |
3dad188e BT |
185 | /* |
186 | * wacom->hdev should never be null, but surprisingly, I had the case | |
187 | * once while unplugging the Wacom Wireless Receiver. | |
188 | */ | |
189 | if (wacom->hdev) | |
190 | hid_hw_close(wacom->hdev); | |
3bea733a PC |
191 | } |
192 | ||
115d5e12 | 193 | /* |
198fdee2 | 194 | * Calculate the resolution of the X or Y axis using hidinput_calc_abs_res. |
115d5e12 JG |
195 | */ |
196 | static int wacom_calc_hid_res(int logical_extents, int physical_extents, | |
c669fb2b | 197 | unsigned unit, int exponent) |
115d5e12 | 198 | { |
198fdee2 BT |
199 | struct hid_field field = { |
200 | .logical_maximum = logical_extents, | |
201 | .physical_maximum = physical_extents, | |
202 | .unit = unit, | |
203 | .unit_exponent = exponent, | |
204 | }; | |
205 | ||
206 | return hidinput_calc_abs_res(&field, ABS_X); | |
115d5e12 JG |
207 | } |
208 | ||
57832512 JG |
209 | static void wacom_hid_usage_quirk(struct hid_device *hdev, |
210 | struct hid_field *field, struct hid_usage *usage) | |
211 | { | |
212 | struct wacom *wacom = hid_get_drvdata(hdev); | |
213 | struct wacom_features *features = &wacom->wacom_wac.features; | |
214 | unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid); | |
215 | ||
216 | /* | |
217 | * The Dell Canvas 27 needs to be switched to its vendor-defined | |
218 | * report to provide the best resolution. | |
219 | */ | |
220 | if (hdev->vendor == USB_VENDOR_ID_WACOM && | |
221 | hdev->product == 0x4200 && | |
222 | field->application == HID_UP_MSVENDOR) { | |
223 | wacom->wacom_wac.mode_report = field->report->id; | |
224 | wacom->wacom_wac.mode_value = 2; | |
225 | } | |
226 | ||
227 | /* | |
228 | * ISDv4 devices which predate HID's adoption of the | |
229 | * HID_DG_BARELSWITCH2 usage use 0x000D0000 in its | |
230 | * position instead. We can accurately detect if a | |
231 | * usage with that value should be HID_DG_BARRELSWITCH2 | |
232 | * based on the surrounding usages, which have remained | |
233 | * constant across generations. | |
234 | */ | |
235 | if (features->type == HID_GENERIC && | |
236 | usage->hid == 0x000D0000 && | |
237 | field->application == HID_DG_PEN && | |
238 | field->physical == HID_DG_STYLUS) { | |
239 | int i = usage->usage_index; | |
240 | ||
241 | if (i-4 >= 0 && i+1 < field->maxusage && | |
242 | field->usage[i-4].hid == HID_DG_TIPSWITCH && | |
243 | field->usage[i-3].hid == HID_DG_BARRELSWITCH && | |
244 | field->usage[i-2].hid == HID_DG_ERASER && | |
245 | field->usage[i-1].hid == HID_DG_INVERT && | |
246 | field->usage[i+1].hid == HID_DG_INRANGE) { | |
247 | usage->hid = HID_DG_BARRELSWITCH2; | |
248 | } | |
249 | } | |
250 | ||
e9fe0d49 JG |
251 | /* |
252 | * Wacom's AES devices use different vendor-defined usages to | |
253 | * report serial number information compared to their branded | |
254 | * hardware. The usages are also sometimes ill-defined and do | |
255 | * not have the correct logical min/max values set. Lets patch | |
256 | * the descriptor to use the branded usage convention and fix | |
257 | * the errors. | |
258 | */ | |
259 | if (usage->hid == WACOM_HID_WT_SERIALNUMBER && | |
260 | field->report_size == 16 && | |
261 | field->index + 2 < field->report->maxfield) { | |
262 | struct hid_field *a = field->report->field[field->index + 1]; | |
263 | struct hid_field *b = field->report->field[field->index + 2]; | |
264 | ||
265 | if (a->maxusage > 0 && | |
266 | a->usage[0].hid == HID_DG_TOOLSERIALNUMBER && | |
267 | a->report_size == 32 && | |
268 | b->maxusage > 0 && | |
269 | b->usage[0].hid == 0xFF000000 && | |
270 | b->report_size == 8) { | |
271 | features->quirks |= WACOM_QUIRK_AESPEN; | |
272 | usage->hid = WACOM_HID_WD_TOOLTYPE; | |
273 | field->logical_minimum = S16_MIN; | |
274 | field->logical_maximum = S16_MAX; | |
275 | a->logical_minimum = S32_MIN; | |
276 | a->logical_maximum = S32_MAX; | |
277 | b->usage[0].hid = WACOM_HID_WD_SERIALHI; | |
278 | b->logical_minimum = 0; | |
279 | b->logical_maximum = U8_MAX; | |
280 | } | |
281 | } | |
282 | ||
57832512 JG |
283 | /* 2nd-generation Intuos Pro Large has incorrect Y maximum */ |
284 | if (hdev->vendor == USB_VENDOR_ID_WACOM && | |
285 | hdev->product == 0x0358 && | |
286 | WACOM_PEN_FIELD(field) && | |
287 | equivalent_usage == HID_GD_Y) { | |
288 | field->logical_maximum = 43200; | |
289 | } | |
290 | } | |
291 | ||
c669fb2b BT |
292 | static void wacom_feature_mapping(struct hid_device *hdev, |
293 | struct hid_field *field, struct hid_usage *usage) | |
f393ee2b | 294 | { |
c669fb2b BT |
295 | struct wacom *wacom = hid_get_drvdata(hdev); |
296 | struct wacom_features *features = &wacom->wacom_wac.features; | |
5ae6e89f | 297 | struct hid_data *hid_data = &wacom->wacom_wac.hid_data; |
ac2423c9 | 298 | unsigned int equivalent_usage = wacom_equivalent_usage(usage->hid); |
8ffffd52 BT |
299 | u8 *data; |
300 | int ret; | |
3064a03b | 301 | u32 n; |
f393ee2b | 302 | |
57832512 JG |
303 | wacom_hid_usage_quirk(hdev, field, usage); |
304 | ||
ac2423c9 | 305 | switch (equivalent_usage) { |
d8e98060 AAS |
306 | case WACOM_HID_WD_TOUCH_RING_SETTING: |
307 | wacom->generic_has_leds = true; | |
308 | break; | |
c669fb2b BT |
309 | case HID_DG_CONTACTMAX: |
310 | /* leave touch_max as is if predefined */ | |
8ffffd52 BT |
311 | if (!features->touch_max) { |
312 | /* read manually */ | |
184eccd4 AAS |
313 | n = hid_report_len(field->report); |
314 | data = hid_alloc_report_buf(field->report, GFP_KERNEL); | |
8ffffd52 BT |
315 | if (!data) |
316 | break; | |
317 | data[0] = field->report->id; | |
318 | ret = wacom_get_report(hdev, HID_FEATURE_REPORT, | |
184eccd4 | 319 | data, n, WAC_CMD_RETRIES); |
778fbf41 | 320 | if (ret == n && features->type == HID_GENERIC) { |
184eccd4 AAS |
321 | ret = hid_report_raw_event(hdev, |
322 | HID_FEATURE_REPORT, data, n, 0); | |
778fbf41 JG |
323 | } else if (ret == 2 && features->type != HID_GENERIC) { |
324 | features->touch_max = data[1]; | |
05e8fd92 JG |
325 | } else { |
326 | features->touch_max = 16; | |
327 | hid_warn(hdev, "wacom_feature_mapping: " | |
328 | "could not get HID_DG_CONTACTMAX, " | |
329 | "defaulting to %d\n", | |
330 | features->touch_max); | |
331 | } | |
8ffffd52 BT |
332 | kfree(data); |
333 | } | |
c669fb2b | 334 | break; |
5ae6e89f BT |
335 | case HID_DG_INPUTMODE: |
336 | /* Ignore if value index is out of bounds. */ | |
337 | if (usage->usage_index >= field->report_count) { | |
338 | dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n"); | |
339 | break; | |
340 | } | |
341 | ||
342 | hid_data->inputmode = field->report->id; | |
343 | hid_data->inputmode_index = usage->usage_index; | |
344 | break; | |
326ea2a9 JG |
345 | |
346 | case HID_UP_DIGITIZER: | |
347 | if (field->report->id == 0x0B && | |
8de82280 JG |
348 | (field->application == WACOM_HID_G9_PEN || |
349 | field->application == WACOM_HID_G11_PEN)) { | |
326ea2a9 JG |
350 | wacom->wacom_wac.mode_report = field->report->id; |
351 | wacom->wacom_wac.mode_value = 0; | |
352 | } | |
353 | break; | |
354 | ||
c9c09587 JG |
355 | case WACOM_HID_WD_DATAMODE: |
356 | wacom->wacom_wac.mode_report = field->report->id; | |
357 | wacom->wacom_wac.mode_value = 2; | |
358 | break; | |
359 | ||
8de82280 JG |
360 | case WACOM_HID_UP_G9: |
361 | case WACOM_HID_UP_G11: | |
326ea2a9 | 362 | if (field->report->id == 0x03 && |
8de82280 JG |
363 | (field->application == WACOM_HID_G9_TOUCHSCREEN || |
364 | field->application == WACOM_HID_G11_TOUCHSCREEN)) { | |
326ea2a9 JG |
365 | wacom->wacom_wac.mode_report = field->report->id; |
366 | wacom->wacom_wac.mode_value = 0; | |
367 | } | |
368 | break; | |
345857bb JG |
369 | case WACOM_HID_WD_OFFSETLEFT: |
370 | case WACOM_HID_WD_OFFSETTOP: | |
371 | case WACOM_HID_WD_OFFSETRIGHT: | |
372 | case WACOM_HID_WD_OFFSETBOTTOM: | |
373 | /* read manually */ | |
374 | n = hid_report_len(field->report); | |
375 | data = hid_alloc_report_buf(field->report, GFP_KERNEL); | |
376 | if (!data) | |
377 | break; | |
378 | data[0] = field->report->id; | |
379 | ret = wacom_get_report(hdev, HID_FEATURE_REPORT, | |
380 | data, n, WAC_CMD_RETRIES); | |
381 | if (ret == n) { | |
382 | ret = hid_report_raw_event(hdev, HID_FEATURE_REPORT, | |
383 | data, n, 0); | |
384 | } else { | |
385 | hid_warn(hdev, "%s: could not retrieve sensor offsets\n", | |
386 | __func__); | |
387 | } | |
388 | kfree(data); | |
389 | break; | |
f393ee2b PC |
390 | } |
391 | } | |
392 | ||
428f8588 CB |
393 | /* |
394 | * Interface Descriptor of wacom devices can be incomplete and | |
395 | * inconsistent so wacom_features table is used to store stylus | |
396 | * device's packet lengths, various maximum values, and tablet | |
397 | * resolution based on product ID's. | |
398 | * | |
399 | * For devices that contain 2 interfaces, wacom_features table is | |
400 | * inaccurate for the touch interface. Since the Interface Descriptor | |
401 | * for touch interfaces has pretty complete data, this function exists | |
402 | * to query tablet for this missing information instead of hard coding in | |
403 | * an additional table. | |
404 | * | |
405 | * A typical Interface Descriptor for a stylus will contain a | |
406 | * boot mouse application collection that is not of interest and this | |
407 | * function will ignore it. | |
408 | * | |
409 | * It also contains a digitizer application collection that also is not | |
410 | * of interest since any information it contains would be duplicate | |
411 | * of what is in wacom_features. Usually it defines a report of an array | |
412 | * of bytes that could be used as max length of the stylus packet returned. | |
413 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
414 | * the X and Y logical values contain valid data but it is ignored. | |
415 | * | |
416 | * A typical Interface Descriptor for a touch interface will contain a | |
417 | * Digitizer-Finger Physical Collection which will define both logical | |
418 | * X/Y maximum as well as the physical size of tablet. Since touch | |
419 | * interfaces haven't supported pressure or distance, this is enough | |
420 | * information to override invalid values in the wacom_features table. | |
4134361a | 421 | * |
c669fb2b BT |
422 | * Intuos5 touch interface and 3rd gen Bamboo Touch do not contain useful |
423 | * data. We deal with them after returning from this function. | |
428f8588 | 424 | */ |
c669fb2b BT |
425 | static void wacom_usage_mapping(struct hid_device *hdev, |
426 | struct hid_field *field, struct hid_usage *usage) | |
545f4e99 | 427 | { |
c669fb2b BT |
428 | struct wacom *wacom = hid_get_drvdata(hdev); |
429 | struct wacom_features *features = &wacom->wacom_wac.features; | |
d97a5522 BT |
430 | bool finger = WACOM_FINGER_FIELD(field); |
431 | bool pen = WACOM_PEN_FIELD(field); | |
418b573b | 432 | unsigned equivalent_usage = wacom_equivalent_usage(usage->hid); |
e9fc413f | 433 | |
c669fb2b BT |
434 | /* |
435 | * Requiring Stylus Usage will ignore boot mouse | |
436 | * X/Y values and some cases of invalid Digitizer X/Y | |
437 | * values commonly reported. | |
438 | */ | |
042628ab | 439 | if (pen) |
aa86b18c | 440 | features->device_type |= WACOM_DEVICETYPE_PEN; |
042628ab | 441 | else if (finger) |
aa86b18c | 442 | features->device_type |= WACOM_DEVICETYPE_TOUCH; |
042628ab | 443 | else |
c669fb2b BT |
444 | return; |
445 | ||
57832512 | 446 | wacom_hid_usage_quirk(hdev, field, usage); |
d471b6b2 | 447 | |
418b573b | 448 | switch (equivalent_usage) { |
c669fb2b BT |
449 | case HID_GD_X: |
450 | features->x_max = field->logical_maximum; | |
451 | if (finger) { | |
c669fb2b | 452 | features->x_phy = field->physical_maximum; |
3b164a00 PC |
453 | if ((features->type != BAMBOO_PT) && |
454 | (features->type != BAMBOO_TOUCH)) { | |
c669fb2b BT |
455 | features->unit = field->unit; |
456 | features->unitExpo = field->unit_exponent; | |
545f4e99 | 457 | } |
c669fb2b BT |
458 | } |
459 | break; | |
460 | case HID_GD_Y: | |
461 | features->y_max = field->logical_maximum; | |
462 | if (finger) { | |
463 | features->y_phy = field->physical_maximum; | |
3b164a00 PC |
464 | if ((features->type != BAMBOO_PT) && |
465 | (features->type != BAMBOO_TOUCH)) { | |
c669fb2b BT |
466 | features->unit = field->unit; |
467 | features->unitExpo = field->unit_exponent; | |
468 | } | |
469 | } | |
470 | break; | |
471 | case HID_DG_TIPPRESSURE: | |
472 | if (pen) | |
473 | features->pressure_max = field->logical_maximum; | |
474 | break; | |
475 | } | |
7704ac93 BT |
476 | |
477 | if (features->type == HID_GENERIC) | |
478 | wacom_wac_usage_mapping(hdev, field, usage); | |
c669fb2b | 479 | } |
4134361a | 480 | |
b58ba1ba JG |
481 | static void wacom_post_parse_hid(struct hid_device *hdev, |
482 | struct wacom_features *features) | |
483 | { | |
484 | struct wacom *wacom = hid_get_drvdata(hdev); | |
485 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
486 | ||
487 | if (features->type == HID_GENERIC) { | |
488 | /* Any last-minute generic device setup */ | |
4082da80 BT |
489 | if (wacom_wac->has_mode_change) { |
490 | if (wacom_wac->is_direct_mode) | |
491 | features->device_type |= WACOM_DEVICETYPE_DIRECT; | |
492 | else | |
493 | features->device_type &= ~WACOM_DEVICETYPE_DIRECT; | |
494 | } | |
495 | ||
b58ba1ba | 496 | if (features->touch_max > 1) { |
ac2423c9 AAS |
497 | if (features->device_type & WACOM_DEVICETYPE_DIRECT) |
498 | input_mt_init_slots(wacom_wac->touch_input, | |
499 | wacom_wac->features.touch_max, | |
500 | INPUT_MT_DIRECT); | |
501 | else | |
502 | input_mt_init_slots(wacom_wac->touch_input, | |
503 | wacom_wac->features.touch_max, | |
504 | INPUT_MT_POINTER); | |
b58ba1ba JG |
505 | } |
506 | } | |
507 | } | |
508 | ||
c669fb2b BT |
509 | static void wacom_parse_hid(struct hid_device *hdev, |
510 | struct wacom_features *features) | |
511 | { | |
512 | struct hid_report_enum *rep_enum; | |
513 | struct hid_report *hreport; | |
514 | int i, j; | |
515 | ||
516 | /* check features first */ | |
517 | rep_enum = &hdev->report_enum[HID_FEATURE_REPORT]; | |
518 | list_for_each_entry(hreport, &rep_enum->report_list, list) { | |
519 | for (i = 0; i < hreport->maxfield; i++) { | |
520 | /* Ignore if report count is out of bounds. */ | |
521 | if (hreport->field[i]->report_count < 1) | |
522 | continue; | |
523 | ||
524 | for (j = 0; j < hreport->field[i]->maxusage; j++) { | |
525 | wacom_feature_mapping(hdev, hreport->field[i], | |
526 | hreport->field[i]->usage + j); | |
4134361a | 527 | } |
545f4e99 PC |
528 | } |
529 | } | |
530 | ||
c669fb2b BT |
531 | /* now check the input usages */ |
532 | rep_enum = &hdev->report_enum[HID_INPUT_REPORT]; | |
533 | list_for_each_entry(hreport, &rep_enum->report_list, list) { | |
534 | ||
535 | if (!hreport->maxfield) | |
536 | continue; | |
537 | ||
538 | for (i = 0; i < hreport->maxfield; i++) | |
539 | for (j = 0; j < hreport->field[i]->maxusage; j++) | |
540 | wacom_usage_mapping(hdev, hreport->field[i], | |
541 | hreport->field[i]->usage + j); | |
542 | } | |
b58ba1ba JG |
543 | |
544 | wacom_post_parse_hid(hdev, features); | |
545f4e99 PC |
545 | } |
546 | ||
5ae6e89f BT |
547 | static int wacom_hid_set_device_mode(struct hid_device *hdev) |
548 | { | |
549 | struct wacom *wacom = hid_get_drvdata(hdev); | |
550 | struct hid_data *hid_data = &wacom->wacom_wac.hid_data; | |
551 | struct hid_report *r; | |
552 | struct hid_report_enum *re; | |
553 | ||
554 | if (hid_data->inputmode < 0) | |
555 | return 0; | |
556 | ||
557 | re = &(hdev->report_enum[HID_FEATURE_REPORT]); | |
558 | r = re->report_id_hash[hid_data->inputmode]; | |
559 | if (r) { | |
560 | r->field[0]->value[hid_data->inputmode_index] = 2; | |
561 | hid_hw_request(hdev, r, HID_REQ_SET_REPORT); | |
562 | } | |
563 | return 0; | |
564 | } | |
565 | ||
326ea2a9 JG |
566 | static int wacom_set_device_mode(struct hid_device *hdev, |
567 | struct wacom_wac *wacom_wac) | |
3b7307c2 | 568 | { |
326ea2a9 JG |
569 | u8 *rep_data; |
570 | struct hid_report *r; | |
571 | struct hid_report_enum *re; | |
3064a03b | 572 | u32 length; |
fe494bc2 | 573 | int error = -ENOMEM, limit = 0; |
3b7307c2 | 574 | |
326ea2a9 JG |
575 | if (wacom_wac->mode_report < 0) |
576 | return 0; | |
577 | ||
578 | re = &(hdev->report_enum[HID_FEATURE_REPORT]); | |
579 | r = re->report_id_hash[wacom_wac->mode_report]; | |
580 | if (!r) | |
581 | return -EINVAL; | |
582 | ||
583 | rep_data = hid_alloc_report_buf(r, GFP_KERNEL); | |
3b7307c2 | 584 | if (!rep_data) |
326ea2a9 JG |
585 | return -ENOMEM; |
586 | ||
587 | length = hid_report_len(r); | |
ec67bbed | 588 | |
fe494bc2 | 589 | do { |
326ea2a9 JG |
590 | rep_data[0] = wacom_wac->mode_report; |
591 | rep_data[1] = wacom_wac->mode_value; | |
9937c026 | 592 | |
296b7378 PF |
593 | error = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, |
594 | length, 1); | |
3cb83157 | 595 | if (error >= 0) |
27b20a9d | 596 | error = wacom_get_report(hdev, HID_FEATURE_REPORT, |
c64d8834 | 597 | rep_data, length, 1); |
326ea2a9 JG |
598 | } while (error >= 0 && |
599 | rep_data[1] != wacom_wac->mode_report && | |
600 | limit++ < WAC_MSG_RETRIES); | |
fe494bc2 JG |
601 | |
602 | kfree(rep_data); | |
603 | ||
604 | return error < 0 ? error : 0; | |
605 | } | |
606 | ||
f81a1295 BT |
607 | static int wacom_bt_query_tablet_data(struct hid_device *hdev, u8 speed, |
608 | struct wacom_features *features) | |
609 | { | |
387142bb BT |
610 | struct wacom *wacom = hid_get_drvdata(hdev); |
611 | int ret; | |
612 | u8 rep_data[2]; | |
613 | ||
614 | switch (features->type) { | |
615 | case GRAPHIRE_BT: | |
616 | rep_data[0] = 0x03; | |
617 | rep_data[1] = 0x00; | |
296b7378 PF |
618 | ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2, |
619 | 3); | |
387142bb BT |
620 | |
621 | if (ret >= 0) { | |
622 | rep_data[0] = speed == 0 ? 0x05 : 0x06; | |
623 | rep_data[1] = 0x00; | |
624 | ||
625 | ret = wacom_set_report(hdev, HID_FEATURE_REPORT, | |
296b7378 | 626 | rep_data, 2, 3); |
387142bb BT |
627 | |
628 | if (ret >= 0) { | |
629 | wacom->wacom_wac.bt_high_speed = speed; | |
630 | return 0; | |
631 | } | |
632 | } | |
633 | ||
634 | /* | |
635 | * Note that if the raw queries fail, it's not a hard failure | |
636 | * and it is safe to continue | |
637 | */ | |
638 | hid_warn(hdev, "failed to poke device, command %d, err %d\n", | |
639 | rep_data[0], ret); | |
640 | break; | |
81af7e61 BT |
641 | case INTUOS4WL: |
642 | if (speed == 1) | |
643 | wacom->wacom_wac.bt_features &= ~0x20; | |
644 | else | |
645 | wacom->wacom_wac.bt_features |= 0x20; | |
646 | ||
647 | rep_data[0] = 0x03; | |
648 | rep_data[1] = wacom->wacom_wac.bt_features; | |
649 | ||
296b7378 PF |
650 | ret = wacom_set_report(hdev, HID_FEATURE_REPORT, rep_data, 2, |
651 | 1); | |
81af7e61 BT |
652 | if (ret >= 0) |
653 | wacom->wacom_wac.bt_high_speed = speed; | |
654 | break; | |
387142bb BT |
655 | } |
656 | ||
f81a1295 BT |
657 | return 0; |
658 | } | |
659 | ||
fe494bc2 JG |
660 | /* |
661 | * Switch the tablet into its most-capable mode. Wacom tablets are | |
662 | * typically configured to power-up in a mode which sends mouse-like | |
663 | * reports to the OS. To get absolute position, pressure data, etc. | |
664 | * from the tablet, it is necessary to switch the tablet out of this | |
665 | * mode and into one which sends the full range of tablet data. | |
666 | */ | |
a544c619 | 667 | static int _wacom_query_tablet_data(struct wacom *wacom) |
fe494bc2 | 668 | { |
a544c619 | 669 | struct hid_device *hdev = wacom->hdev; |
326ea2a9 | 670 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; |
a544c619 | 671 | struct wacom_features *features = &wacom_wac->features; |
326ea2a9 | 672 | |
f81a1295 BT |
673 | if (hdev->bus == BUS_BLUETOOTH) |
674 | return wacom_bt_query_tablet_data(hdev, 1, features); | |
675 | ||
326ea2a9 JG |
676 | if (features->type != HID_GENERIC) { |
677 | if (features->device_type & WACOM_DEVICETYPE_TOUCH) { | |
678 | if (features->type > TABLETPC) { | |
679 | /* MT Tablet PC touch */ | |
680 | wacom_wac->mode_report = 3; | |
681 | wacom_wac->mode_value = 4; | |
682 | } else if (features->type == WACOM_24HDT) { | |
683 | wacom_wac->mode_report = 18; | |
684 | wacom_wac->mode_value = 2; | |
685 | } else if (features->type == WACOM_27QHDT) { | |
686 | wacom_wac->mode_report = 131; | |
687 | wacom_wac->mode_value = 2; | |
688 | } else if (features->type == BAMBOO_PAD) { | |
689 | wacom_wac->mode_report = 2; | |
690 | wacom_wac->mode_value = 2; | |
691 | } | |
692 | } else if (features->device_type & WACOM_DEVICETYPE_PEN) { | |
693 | if (features->type <= BAMBOO_PT) { | |
694 | wacom_wac->mode_report = 2; | |
695 | wacom_wac->mode_value = 2; | |
696 | } | |
1963518b | 697 | } |
ec67bbed | 698 | } |
3b7307c2 | 699 | |
326ea2a9 JG |
700 | wacom_set_device_mode(hdev, wacom_wac); |
701 | ||
702 | if (features->type == HID_GENERIC) | |
703 | return wacom_hid_set_device_mode(hdev); | |
704 | ||
fe494bc2 | 705 | return 0; |
3b7307c2 DT |
706 | } |
707 | ||
c669fb2b | 708 | static void wacom_retrieve_hid_descriptor(struct hid_device *hdev, |
1963518b | 709 | struct wacom_features *features) |
ec67bbed | 710 | { |
27b20a9d BT |
711 | struct wacom *wacom = hid_get_drvdata(hdev); |
712 | struct usb_interface *intf = wacom->intf; | |
ec67bbed | 713 | |
fed87e65 | 714 | /* default features */ |
fed87e65 HR |
715 | features->x_fuzz = 4; |
716 | features->y_fuzz = 4; | |
717 | features->pressure_fuzz = 0; | |
bef7e200 JG |
718 | features->distance_fuzz = 1; |
719 | features->tilt_fuzz = 1; | |
ec67bbed | 720 | |
d3825d51 CB |
721 | /* |
722 | * The wireless device HID is basic and layout conflicts with | |
723 | * other tablets (monitor and touch interface can look like pen). | |
724 | * Skip the query for this type and modify defaults based on | |
725 | * interface number. | |
726 | */ | |
720ac467 | 727 | if (features->type == WIRELESS && intf) { |
3f14a63a | 728 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) |
ccad85cc | 729 | features->device_type = WACOM_DEVICETYPE_WL_MONITOR; |
3f14a63a | 730 | else |
aa86b18c | 731 | features->device_type = WACOM_DEVICETYPE_NONE; |
3f14a63a | 732 | return; |
d3825d51 CB |
733 | } |
734 | ||
c669fb2b | 735 | wacom_parse_hid(hdev, features); |
ec67bbed PC |
736 | } |
737 | ||
4451e088 | 738 | struct wacom_hdev_data { |
4492efff PC |
739 | struct list_head list; |
740 | struct kref kref; | |
4451e088 | 741 | struct hid_device *dev; |
4492efff PC |
742 | struct wacom_shared shared; |
743 | }; | |
744 | ||
745 | static LIST_HEAD(wacom_udev_list); | |
746 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
747 | ||
4451e088 BT |
748 | static bool wacom_are_sibling(struct hid_device *hdev, |
749 | struct hid_device *sibling) | |
aea2bf6a | 750 | { |
4451e088 BT |
751 | struct wacom *wacom = hid_get_drvdata(hdev); |
752 | struct wacom_features *features = &wacom->wacom_wac.features; | |
41372d5d JG |
753 | struct wacom *sibling_wacom = hid_get_drvdata(sibling); |
754 | struct wacom_features *sibling_features = &sibling_wacom->wacom_wac.features; | |
755 | __u32 oVid = features->oVid ? features->oVid : hdev->vendor; | |
756 | __u32 oPid = features->oPid ? features->oPid : hdev->product; | |
4451e088 | 757 | |
41372d5d JG |
758 | /* The defined oVid/oPid must match that of the sibling */ |
759 | if (features->oVid != HID_ANY_ID && sibling->vendor != oVid) | |
760 | return false; | |
761 | if (features->oPid != HID_ANY_ID && sibling->product != oPid) | |
762 | return false; | |
763 | ||
764 | /* | |
765 | * Devices with the same VID/PID must share the same physical | |
766 | * device path, while those with different VID/PID must share | |
767 | * the same physical parent device path. | |
768 | */ | |
769 | if (hdev->vendor == sibling->vendor && hdev->product == sibling->product) { | |
1a8861f1 | 770 | if (!hid_compare_device_paths(hdev, sibling, '/')) |
41372d5d JG |
771 | return false; |
772 | } else { | |
1a8861f1 | 773 | if (!hid_compare_device_paths(hdev, sibling, '.')) |
41372d5d | 774 | return false; |
4451e088 | 775 | } |
aea2bf6a | 776 | |
41372d5d JG |
777 | /* Skip the remaining heuristics unless you are a HID_GENERIC device */ |
778 | if (features->type != HID_GENERIC) | |
779 | return true; | |
780 | ||
781 | /* | |
782 | * Direct-input devices may not be siblings of indirect-input | |
783 | * devices. | |
784 | */ | |
785 | if ((features->device_type & WACOM_DEVICETYPE_DIRECT) && | |
786 | !(sibling_features->device_type & WACOM_DEVICETYPE_DIRECT)) | |
4451e088 | 787 | return false; |
aea2bf6a | 788 | |
41372d5d JG |
789 | /* |
790 | * Indirect-input devices may not be siblings of direct-input | |
791 | * devices. | |
792 | */ | |
793 | if (!(features->device_type & WACOM_DEVICETYPE_DIRECT) && | |
794 | (sibling_features->device_type & WACOM_DEVICETYPE_DIRECT)) | |
4451e088 | 795 | return false; |
aea2bf6a | 796 | |
41372d5d JG |
797 | /* Pen devices may only be siblings of touch devices */ |
798 | if ((features->device_type & WACOM_DEVICETYPE_PEN) && | |
799 | !(sibling_features->device_type & WACOM_DEVICETYPE_TOUCH)) | |
800 | return false; | |
801 | ||
802 | /* Touch devices may only be siblings of pen devices */ | |
803 | if ((features->device_type & WACOM_DEVICETYPE_TOUCH) && | |
804 | !(sibling_features->device_type & WACOM_DEVICETYPE_PEN)) | |
805 | return false; | |
806 | ||
807 | /* | |
808 | * No reason could be found for these two devices to NOT be | |
809 | * siblings, so there's a good chance they ARE siblings | |
810 | */ | |
811 | return true; | |
aea2bf6a JG |
812 | } |
813 | ||
4451e088 | 814 | static struct wacom_hdev_data *wacom_get_hdev_data(struct hid_device *hdev) |
4492efff | 815 | { |
4451e088 | 816 | struct wacom_hdev_data *data; |
4492efff | 817 | |
41372d5d JG |
818 | /* Try to find an already-probed interface from the same device */ |
819 | list_for_each_entry(data, &wacom_udev_list, list) { | |
1a8861f1 | 820 | if (hid_compare_device_paths(hdev, data->dev, '/')) { |
2a5e597c | 821 | kref_get(&data->kref); |
41372d5d | 822 | return data; |
2a5e597c | 823 | } |
41372d5d JG |
824 | } |
825 | ||
826 | /* Fallback to finding devices that appear to be "siblings" */ | |
4492efff | 827 | list_for_each_entry(data, &wacom_udev_list, list) { |
4451e088 | 828 | if (wacom_are_sibling(hdev, data->dev)) { |
4492efff PC |
829 | kref_get(&data->kref); |
830 | return data; | |
831 | } | |
832 | } | |
833 | ||
834 | return NULL; | |
835 | } | |
836 | ||
1c817c83 BT |
837 | static void wacom_release_shared_data(struct kref *kref) |
838 | { | |
839 | struct wacom_hdev_data *data = | |
840 | container_of(kref, struct wacom_hdev_data, kref); | |
841 | ||
842 | mutex_lock(&wacom_udev_list_lock); | |
843 | list_del(&data->list); | |
844 | mutex_unlock(&wacom_udev_list_lock); | |
845 | ||
846 | kfree(data); | |
847 | } | |
848 | ||
849 | static void wacom_remove_shared_data(void *res) | |
850 | { | |
851 | struct wacom *wacom = res; | |
852 | struct wacom_hdev_data *data; | |
853 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
854 | ||
855 | if (wacom_wac->shared) { | |
856 | data = container_of(wacom_wac->shared, struct wacom_hdev_data, | |
857 | shared); | |
858 | ||
859 | if (wacom_wac->shared->touch == wacom->hdev) | |
860 | wacom_wac->shared->touch = NULL; | |
861 | else if (wacom_wac->shared->pen == wacom->hdev) | |
862 | wacom_wac->shared->pen = NULL; | |
863 | ||
864 | kref_put(&data->kref, wacom_release_shared_data); | |
865 | wacom_wac->shared = NULL; | |
866 | } | |
867 | } | |
868 | ||
4451e088 | 869 | static int wacom_add_shared_data(struct hid_device *hdev) |
4492efff | 870 | { |
4451e088 BT |
871 | struct wacom *wacom = hid_get_drvdata(hdev); |
872 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
873 | struct wacom_hdev_data *data; | |
4492efff PC |
874 | int retval = 0; |
875 | ||
876 | mutex_lock(&wacom_udev_list_lock); | |
877 | ||
4451e088 | 878 | data = wacom_get_hdev_data(hdev); |
4492efff | 879 | if (!data) { |
4451e088 | 880 | data = kzalloc(sizeof(struct wacom_hdev_data), GFP_KERNEL); |
4492efff | 881 | if (!data) { |
b7644592 JG |
882 | mutex_unlock(&wacom_udev_list_lock); |
883 | return -ENOMEM; | |
4492efff PC |
884 | } |
885 | ||
886 | kref_init(&data->kref); | |
4451e088 | 887 | data->dev = hdev; |
4492efff PC |
888 | list_add_tail(&data->list, &wacom_udev_list); |
889 | } | |
890 | ||
b7644592 JG |
891 | mutex_unlock(&wacom_udev_list_lock); |
892 | ||
4451e088 | 893 | wacom_wac->shared = &data->shared; |
4492efff | 894 | |
3d422a46 CH |
895 | retval = devm_add_action_or_reset(&hdev->dev, wacom_remove_shared_data, wacom); |
896 | if (retval) | |
1c817c83 | 897 | return retval; |
1c817c83 | 898 | |
a9ce7856 JG |
899 | if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH) |
900 | wacom_wac->shared->touch = hdev; | |
901 | else if (wacom_wac->features.device_type & WACOM_DEVICETYPE_PEN) | |
902 | wacom_wac->shared->pen = hdev; | |
903 | ||
4492efff PC |
904 | return retval; |
905 | } | |
906 | ||
5d7e7d47 EH |
907 | static int wacom_led_control(struct wacom *wacom) |
908 | { | |
909 | unsigned char *buf; | |
9b5b95dd | 910 | int retval; |
912ca216 PC |
911 | unsigned char report_id = WAC_CMD_LED_CONTROL; |
912 | int buf_size = 9; | |
5d7e7d47 | 913 | |
a50aac71 BT |
914 | if (!wacom->led.groups) |
915 | return -ENOTSUPP; | |
916 | ||
74aebed6 AAS |
917 | if (wacom->wacom_wac.features.type == REMOTE) |
918 | return -ENOTSUPP; | |
919 | ||
912ca216 PC |
920 | if (wacom->wacom_wac.pid) { /* wireless connected */ |
921 | report_id = WAC_CMD_WL_LED_CONTROL; | |
922 | buf_size = 13; | |
923 | } | |
4922cd26 JG |
924 | else if (wacom->wacom_wac.features.type == INTUOSP2_BT) { |
925 | report_id = WAC_CMD_WL_INTUOSP2; | |
926 | buf_size = 51; | |
927 | } | |
912ca216 | 928 | buf = kzalloc(buf_size, GFP_KERNEL); |
5d7e7d47 EH |
929 | if (!buf) |
930 | return -ENOMEM; | |
931 | ||
10c55cac AAS |
932 | if (wacom->wacom_wac.features.type == HID_GENERIC) { |
933 | buf[0] = WAC_CMD_LED_CONTROL_GENERIC; | |
934 | buf[1] = wacom->led.llv; | |
935 | buf[2] = wacom->led.groups[0].select & 0x03; | |
936 | ||
937 | } else if ((wacom->wacom_wac.features.type >= INTUOS5S && | |
938 | wacom->wacom_wac.features.type <= INTUOSPL)) { | |
9b5b95dd JG |
939 | /* |
940 | * Touch Ring and crop mark LED luminance may take on | |
941 | * one of four values: | |
942 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
943 | */ | |
a50aac71 | 944 | int ring_led = wacom->led.groups[0].select & 0x03; |
9b5b95dd JG |
945 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; |
946 | int crop_lum = 0; | |
912ca216 PC |
947 | unsigned char led_bits = (crop_lum << 4) | (ring_lum << 2) | (ring_led); |
948 | ||
949 | buf[0] = report_id; | |
950 | if (wacom->wacom_wac.pid) { | |
951 | wacom_get_report(wacom->hdev, HID_FEATURE_REPORT, | |
952 | buf, buf_size, WAC_CMD_RETRIES); | |
953 | buf[0] = report_id; | |
954 | buf[4] = led_bits; | |
955 | } else | |
956 | buf[1] = led_bits; | |
9b5b95dd | 957 | } |
4922cd26 JG |
958 | else if (wacom->wacom_wac.features.type == INTUOSP2_BT) { |
959 | buf[0] = report_id; | |
960 | buf[4] = 100; // Power Connection LED (ORANGE) | |
961 | buf[5] = 100; // BT Connection LED (BLUE) | |
962 | buf[6] = 100; // Paper Mode (RED?) | |
963 | buf[7] = 100; // Paper Mode (GREEN?) | |
964 | buf[8] = 100; // Paper Mode (BLUE?) | |
965 | buf[9] = wacom->led.llv; | |
966 | buf[10] = wacom->led.groups[0].select & 0x03; | |
967 | } | |
9b5b95dd | 968 | else { |
a50aac71 | 969 | int led = wacom->led.groups[0].select | 0x4; |
9b5b95dd JG |
970 | |
971 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
972 | wacom->wacom_wac.features.type == WACOM_24HD) | |
a50aac71 | 973 | led |= (wacom->led.groups[1].select << 4) | 0x40; |
9b5b95dd | 974 | |
912ca216 | 975 | buf[0] = report_id; |
9b5b95dd JG |
976 | buf[1] = led; |
977 | buf[2] = wacom->led.llv; | |
978 | buf[3] = wacom->led.hlv; | |
979 | buf[4] = wacom->led.img_lum; | |
980 | } | |
5d7e7d47 | 981 | |
912ca216 | 982 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, buf_size, |
296b7378 | 983 | WAC_CMD_RETRIES); |
5d7e7d47 EH |
984 | kfree(buf); |
985 | ||
986 | return retval; | |
987 | } | |
988 | ||
849e2f06 BT |
989 | static int wacom_led_putimage(struct wacom *wacom, int button_id, u8 xfer_id, |
990 | const unsigned len, const void *img) | |
5d7e7d47 EH |
991 | { |
992 | unsigned char *buf; | |
993 | int i, retval; | |
849e2f06 | 994 | const unsigned chunk_len = len / 4; /* 4 chunks are needed to be sent */ |
5d7e7d47 | 995 | |
849e2f06 | 996 | buf = kzalloc(chunk_len + 3 , GFP_KERNEL); |
5d7e7d47 EH |
997 | if (!buf) |
998 | return -ENOMEM; | |
999 | ||
1000 | /* Send 'start' command */ | |
1001 | buf[0] = WAC_CMD_ICON_START; | |
1002 | buf[1] = 1; | |
296b7378 PF |
1003 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2, |
1004 | WAC_CMD_RETRIES); | |
5d7e7d47 EH |
1005 | if (retval < 0) |
1006 | goto out; | |
1007 | ||
849e2f06 | 1008 | buf[0] = xfer_id; |
5d7e7d47 EH |
1009 | buf[1] = button_id & 0x07; |
1010 | for (i = 0; i < 4; i++) { | |
1011 | buf[2] = i; | |
849e2f06 | 1012 | memcpy(buf + 3, img + i * chunk_len, chunk_len); |
5d7e7d47 | 1013 | |
27b20a9d | 1014 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, |
296b7378 | 1015 | buf, chunk_len + 3, WAC_CMD_RETRIES); |
5d7e7d47 EH |
1016 | if (retval < 0) |
1017 | break; | |
1018 | } | |
1019 | ||
1020 | /* Send 'stop' */ | |
1021 | buf[0] = WAC_CMD_ICON_START; | |
1022 | buf[1] = 0; | |
296b7378 PF |
1023 | wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, buf, 2, |
1024 | WAC_CMD_RETRIES); | |
5d7e7d47 EH |
1025 | |
1026 | out: | |
1027 | kfree(buf); | |
1028 | return retval; | |
1029 | } | |
1030 | ||
09e7d941 | 1031 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
1032 | const char *buf, size_t count) |
1033 | { | |
ee79a8f8 | 1034 | struct hid_device *hdev = to_hid_device(dev); |
29b47391 | 1035 | struct wacom *wacom = hid_get_drvdata(hdev); |
5d7e7d47 EH |
1036 | unsigned int id; |
1037 | int err; | |
1038 | ||
1039 | err = kstrtouint(buf, 10, &id); | |
1040 | if (err) | |
1041 | return err; | |
1042 | ||
1043 | mutex_lock(&wacom->lock); | |
1044 | ||
a50aac71 | 1045 | wacom->led.groups[set_id].select = id & 0x3; |
5d7e7d47 EH |
1046 | err = wacom_led_control(wacom); |
1047 | ||
1048 | mutex_unlock(&wacom->lock); | |
1049 | ||
1050 | return err < 0 ? err : count; | |
1051 | } | |
1052 | ||
09e7d941 PC |
1053 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
1054 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
1055 | struct device_attribute *attr, const char *buf, size_t count) \ | |
1056 | { \ | |
1057 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
1058 | } \ | |
04c59abd PC |
1059 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
1060 | struct device_attribute *attr, char *buf) \ | |
1061 | { \ | |
ee79a8f8 | 1062 | struct hid_device *hdev = to_hid_device(dev);\ |
29b47391 | 1063 | struct wacom *wacom = hid_get_drvdata(hdev); \ |
37449adc | 1064 | return scnprintf(buf, PAGE_SIZE, "%d\n", \ |
a50aac71 | 1065 | wacom->led.groups[SET_ID].select); \ |
04c59abd | 1066 | } \ |
e0984bc3 | 1067 | static DEVICE_ATTR(status_led##SET_ID##_select, DEV_ATTR_RW_PERM, \ |
04c59abd | 1068 | wacom_led##SET_ID##_select_show, \ |
09e7d941 PC |
1069 | wacom_led##SET_ID##_select_store) |
1070 | ||
1071 | DEVICE_LED_SELECT_ATTR(0); | |
1072 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
1073 | |
1074 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
1075 | const char *buf, size_t count) | |
1076 | { | |
1077 | unsigned int value; | |
1078 | int err; | |
1079 | ||
1080 | err = kstrtouint(buf, 10, &value); | |
1081 | if (err) | |
1082 | return err; | |
1083 | ||
1084 | mutex_lock(&wacom->lock); | |
1085 | ||
1086 | *dest = value & 0x7f; | |
1087 | err = wacom_led_control(wacom); | |
1088 | ||
1089 | mutex_unlock(&wacom->lock); | |
1090 | ||
1091 | return err < 0 ? err : count; | |
1092 | } | |
1093 | ||
1094 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
1095 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
1096 | struct device_attribute *attr, const char *buf, size_t count) \ | |
1097 | { \ | |
ee79a8f8 | 1098 | struct hid_device *hdev = to_hid_device(dev);\ |
29b47391 | 1099 | struct wacom *wacom = hid_get_drvdata(hdev); \ |
5d7e7d47 EH |
1100 | \ |
1101 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
1102 | buf, count); \ | |
1103 | } \ | |
37449adc PC |
1104 | static ssize_t wacom_##name##_luminance_show(struct device *dev, \ |
1105 | struct device_attribute *attr, char *buf) \ | |
1106 | { \ | |
1107 | struct wacom *wacom = dev_get_drvdata(dev); \ | |
1108 | return scnprintf(buf, PAGE_SIZE, "%d\n", wacom->led.field); \ | |
1109 | } \ | |
e0984bc3 | 1110 | static DEVICE_ATTR(name##_luminance, DEV_ATTR_RW_PERM, \ |
37449adc PC |
1111 | wacom_##name##_luminance_show, \ |
1112 | wacom_##name##_luminance_store) | |
5d7e7d47 EH |
1113 | |
1114 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
1115 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
1116 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
1117 | ||
1118 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
1119 | const char *buf, size_t count) | |
1120 | { | |
ee79a8f8 | 1121 | struct hid_device *hdev = to_hid_device(dev); |
29b47391 | 1122 | struct wacom *wacom = hid_get_drvdata(hdev); |
5d7e7d47 | 1123 | int err; |
849e2f06 BT |
1124 | unsigned len; |
1125 | u8 xfer_id; | |
1126 | ||
1127 | if (hdev->bus == BUS_BLUETOOTH) { | |
1128 | len = 256; | |
1129 | xfer_id = WAC_CMD_ICON_BT_XFER; | |
1130 | } else { | |
1131 | len = 1024; | |
1132 | xfer_id = WAC_CMD_ICON_XFER; | |
1133 | } | |
5d7e7d47 | 1134 | |
849e2f06 | 1135 | if (count != len) |
5d7e7d47 EH |
1136 | return -EINVAL; |
1137 | ||
1138 | mutex_lock(&wacom->lock); | |
1139 | ||
849e2f06 | 1140 | err = wacom_led_putimage(wacom, button_id, xfer_id, len, buf); |
5d7e7d47 EH |
1141 | |
1142 | mutex_unlock(&wacom->lock); | |
1143 | ||
1144 | return err < 0 ? err : count; | |
1145 | } | |
1146 | ||
1147 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
1148 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
1149 | struct device_attribute *attr, const char *buf, size_t count) \ | |
1150 | { \ | |
1151 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
1152 | } \ | |
e0984bc3 | 1153 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, DEV_ATTR_WO_PERM, \ |
5d7e7d47 EH |
1154 | NULL, wacom_btnimg##BUTTON_ID##_store) |
1155 | ||
1156 | DEVICE_BTNIMG_ATTR(0); | |
1157 | DEVICE_BTNIMG_ATTR(1); | |
1158 | DEVICE_BTNIMG_ATTR(2); | |
1159 | DEVICE_BTNIMG_ATTR(3); | |
1160 | DEVICE_BTNIMG_ATTR(4); | |
1161 | DEVICE_BTNIMG_ATTR(5); | |
1162 | DEVICE_BTNIMG_ATTR(6); | |
1163 | DEVICE_BTNIMG_ATTR(7); | |
1164 | ||
09e7d941 PC |
1165 | static struct attribute *cintiq_led_attrs[] = { |
1166 | &dev_attr_status_led0_select.attr, | |
1167 | &dev_attr_status_led1_select.attr, | |
1168 | NULL | |
1169 | }; | |
1170 | ||
2a6a35a9 | 1171 | static const struct attribute_group cintiq_led_attr_group = { |
09e7d941 PC |
1172 | .name = "wacom_led", |
1173 | .attrs = cintiq_led_attrs, | |
1174 | }; | |
1175 | ||
1176 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
1177 | &dev_attr_status0_luminance.attr, |
1178 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 1179 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
1180 | &dev_attr_buttons_luminance.attr, |
1181 | &dev_attr_button0_rawimg.attr, | |
1182 | &dev_attr_button1_rawimg.attr, | |
1183 | &dev_attr_button2_rawimg.attr, | |
1184 | &dev_attr_button3_rawimg.attr, | |
1185 | &dev_attr_button4_rawimg.attr, | |
1186 | &dev_attr_button5_rawimg.attr, | |
1187 | &dev_attr_button6_rawimg.attr, | |
1188 | &dev_attr_button7_rawimg.attr, | |
1189 | NULL | |
1190 | }; | |
1191 | ||
2a6a35a9 | 1192 | static const struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 1193 | .name = "wacom_led", |
09e7d941 | 1194 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
1195 | }; |
1196 | ||
9b5b95dd JG |
1197 | static struct attribute *intuos5_led_attrs[] = { |
1198 | &dev_attr_status0_luminance.attr, | |
1199 | &dev_attr_status_led0_select.attr, | |
1200 | NULL | |
1201 | }; | |
1202 | ||
2a6a35a9 | 1203 | static const struct attribute_group intuos5_led_attr_group = { |
9b5b95dd JG |
1204 | .name = "wacom_led", |
1205 | .attrs = intuos5_led_attrs, | |
1206 | }; | |
1207 | ||
10c55cac AAS |
1208 | static struct attribute *generic_led_attrs[] = { |
1209 | &dev_attr_status0_luminance.attr, | |
1210 | &dev_attr_status_led0_select.attr, | |
1211 | NULL | |
1212 | }; | |
1213 | ||
2a6a35a9 | 1214 | static const struct attribute_group generic_led_attr_group = { |
10c55cac AAS |
1215 | .name = "wacom_led", |
1216 | .attrs = generic_led_attrs, | |
1217 | }; | |
1218 | ||
2df68a88 | 1219 | struct wacom_sysfs_group_devres { |
2a6a35a9 | 1220 | const struct attribute_group *group; |
2df68a88 BT |
1221 | struct kobject *root; |
1222 | }; | |
1223 | ||
1224 | static void wacom_devm_sysfs_group_release(struct device *dev, void *res) | |
1225 | { | |
1226 | struct wacom_sysfs_group_devres *devres = res; | |
1227 | struct kobject *kobj = devres->root; | |
1228 | ||
1229 | dev_dbg(dev, "%s: dropping reference to %s\n", | |
1230 | __func__, devres->group->name); | |
1231 | sysfs_remove_group(kobj, devres->group); | |
1232 | } | |
1233 | ||
f9036bd4 BT |
1234 | static int __wacom_devm_sysfs_create_group(struct wacom *wacom, |
1235 | struct kobject *root, | |
2a6a35a9 | 1236 | const struct attribute_group *group) |
2df68a88 BT |
1237 | { |
1238 | struct wacom_sysfs_group_devres *devres; | |
1239 | int error; | |
1240 | ||
1241 | devres = devres_alloc(wacom_devm_sysfs_group_release, | |
1242 | sizeof(struct wacom_sysfs_group_devres), | |
1243 | GFP_KERNEL); | |
1244 | if (!devres) | |
1245 | return -ENOMEM; | |
1246 | ||
1247 | devres->group = group; | |
f9036bd4 | 1248 | devres->root = root; |
2df68a88 BT |
1249 | |
1250 | error = sysfs_create_group(devres->root, group); | |
097b8f62 AY |
1251 | if (error) { |
1252 | devres_free(devres); | |
2df68a88 | 1253 | return error; |
097b8f62 | 1254 | } |
2df68a88 BT |
1255 | |
1256 | devres_add(&wacom->hdev->dev, devres); | |
1257 | ||
1258 | return 0; | |
1259 | } | |
1260 | ||
f9036bd4 | 1261 | static int wacom_devm_sysfs_create_group(struct wacom *wacom, |
2a6a35a9 | 1262 | const struct attribute_group *group) |
f9036bd4 BT |
1263 | { |
1264 | return __wacom_devm_sysfs_create_group(wacom, &wacom->hdev->dev.kobj, | |
1265 | group); | |
1266 | } | |
1267 | ||
37309f47 PC |
1268 | static void wacom_devm_kfifo_release(struct device *dev, void *res) |
1269 | { | |
1270 | struct kfifo_rec_ptr_2 *devres = res; | |
1271 | ||
1272 | kfifo_free(devres); | |
1273 | } | |
1274 | ||
1275 | static int wacom_devm_kfifo_alloc(struct wacom *wacom) | |
1276 | { | |
1277 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
179e8e47 | 1278 | struct kfifo_rec_ptr_2 *pen_fifo; |
37309f47 PC |
1279 | int error; |
1280 | ||
1281 | pen_fifo = devres_alloc(wacom_devm_kfifo_release, | |
1282 | sizeof(struct kfifo_rec_ptr_2), | |
1283 | GFP_KERNEL); | |
1284 | ||
1285 | if (!pen_fifo) | |
1286 | return -ENOMEM; | |
1287 | ||
1288 | error = kfifo_alloc(pen_fifo, WACOM_PKGLEN_MAX, GFP_KERNEL); | |
1289 | if (error) { | |
1290 | devres_free(pen_fifo); | |
1291 | return error; | |
1292 | } | |
1293 | ||
1294 | devres_add(&wacom->hdev->dev, pen_fifo); | |
179e8e47 | 1295 | wacom_wac->pen_fifo = pen_fifo; |
37309f47 PC |
1296 | |
1297 | return 0; | |
1298 | } | |
1299 | ||
34736aa9 | 1300 | enum led_brightness wacom_leds_brightness_get(struct wacom_led *led) |
97f5541f BT |
1301 | { |
1302 | struct wacom *wacom = led->wacom; | |
1303 | ||
1304 | if (wacom->led.max_hlv) | |
1305 | return led->hlv * LED_FULL / wacom->led.max_hlv; | |
1306 | ||
1307 | if (wacom->led.max_llv) | |
1308 | return led->llv * LED_FULL / wacom->led.max_llv; | |
1309 | ||
1310 | /* device doesn't support brightness tuning */ | |
1311 | return LED_FULL; | |
1312 | } | |
1313 | ||
1314 | static enum led_brightness __wacom_led_brightness_get(struct led_classdev *cdev) | |
1315 | { | |
1316 | struct wacom_led *led = container_of(cdev, struct wacom_led, cdev); | |
1317 | struct wacom *wacom = led->wacom; | |
1318 | ||
1319 | if (wacom->led.groups[led->group].select != led->id) | |
1320 | return LED_OFF; | |
1321 | ||
1322 | return wacom_leds_brightness_get(led); | |
1323 | } | |
1324 | ||
1325 | static int wacom_led_brightness_set(struct led_classdev *cdev, | |
1326 | enum led_brightness brightness) | |
1327 | { | |
1328 | struct wacom_led *led = container_of(cdev, struct wacom_led, cdev); | |
1329 | struct wacom *wacom = led->wacom; | |
1330 | int error; | |
1331 | ||
1332 | mutex_lock(&wacom->lock); | |
1333 | ||
1334 | if (!wacom->led.groups || (brightness == LED_OFF && | |
1335 | wacom->led.groups[led->group].select != led->id)) { | |
1336 | error = 0; | |
1337 | goto out; | |
1338 | } | |
1339 | ||
1340 | led->llv = wacom->led.llv = wacom->led.max_llv * brightness / LED_FULL; | |
1341 | led->hlv = wacom->led.hlv = wacom->led.max_hlv * brightness / LED_FULL; | |
1342 | ||
1343 | wacom->led.groups[led->group].select = led->id; | |
1344 | ||
1345 | error = wacom_led_control(wacom); | |
1346 | ||
1347 | out: | |
1348 | mutex_unlock(&wacom->lock); | |
1349 | ||
1350 | return error; | |
1351 | } | |
1352 | ||
1353 | static void wacom_led_readonly_brightness_set(struct led_classdev *cdev, | |
1354 | enum led_brightness brightness) | |
1355 | { | |
1356 | } | |
1357 | ||
1358 | static int wacom_led_register_one(struct device *dev, struct wacom *wacom, | |
1359 | struct wacom_led *led, unsigned int group, | |
1360 | unsigned int id, bool read_only) | |
1361 | { | |
1362 | int error; | |
1363 | char *name; | |
1364 | ||
1365 | name = devm_kasprintf(dev, GFP_KERNEL, | |
1366 | "%s::wacom-%d.%d", | |
1367 | dev_name(dev), | |
1368 | group, | |
1369 | id); | |
1370 | if (!name) | |
1371 | return -ENOMEM; | |
1372 | ||
34736aa9 BT |
1373 | if (!read_only) { |
1374 | led->trigger.name = name; | |
1375 | error = devm_led_trigger_register(dev, &led->trigger); | |
1376 | if (error) { | |
1377 | hid_err(wacom->hdev, | |
1378 | "failed to register LED trigger %s: %d\n", | |
1379 | led->cdev.name, error); | |
1380 | return error; | |
1381 | } | |
1382 | } | |
1383 | ||
97f5541f BT |
1384 | led->group = group; |
1385 | led->id = id; | |
1386 | led->wacom = wacom; | |
1387 | led->llv = wacom->led.llv; | |
1388 | led->hlv = wacom->led.hlv; | |
1389 | led->cdev.name = name; | |
1390 | led->cdev.max_brightness = LED_FULL; | |
1391 | led->cdev.flags = LED_HW_PLUGGABLE; | |
1392 | led->cdev.brightness_get = __wacom_led_brightness_get; | |
34736aa9 | 1393 | if (!read_only) { |
97f5541f | 1394 | led->cdev.brightness_set_blocking = wacom_led_brightness_set; |
34736aa9 BT |
1395 | led->cdev.default_trigger = led->cdev.name; |
1396 | } else { | |
97f5541f | 1397 | led->cdev.brightness_set = wacom_led_readonly_brightness_set; |
34736aa9 | 1398 | } |
97f5541f BT |
1399 | |
1400 | error = devm_led_classdev_register(dev, &led->cdev); | |
1401 | if (error) { | |
1402 | hid_err(wacom->hdev, | |
1403 | "failed to register LED %s: %d\n", | |
1404 | led->cdev.name, error); | |
1405 | led->cdev.name = NULL; | |
1406 | return error; | |
1407 | } | |
1408 | ||
1409 | return 0; | |
1410 | } | |
1411 | ||
589e5060 BT |
1412 | static void wacom_led_groups_release_one(void *data) |
1413 | { | |
1414 | struct wacom_group_leds *group = data; | |
1415 | ||
1416 | devres_release_group(group->dev, group); | |
1417 | } | |
1418 | ||
97f5541f BT |
1419 | static int wacom_led_groups_alloc_and_register_one(struct device *dev, |
1420 | struct wacom *wacom, | |
1421 | int group_id, int count, | |
1422 | bool read_only) | |
1423 | { | |
1424 | struct wacom_led *leds; | |
1425 | int i, error; | |
1426 | ||
1427 | if (group_id >= wacom->led.count || count <= 0) | |
1428 | return -EINVAL; | |
1429 | ||
1430 | if (!devres_open_group(dev, &wacom->led.groups[group_id], GFP_KERNEL)) | |
1431 | return -ENOMEM; | |
1432 | ||
a86854d0 | 1433 | leds = devm_kcalloc(dev, count, sizeof(struct wacom_led), GFP_KERNEL); |
97f5541f BT |
1434 | if (!leds) { |
1435 | error = -ENOMEM; | |
1436 | goto err; | |
1437 | } | |
1438 | ||
1439 | wacom->led.groups[group_id].leds = leds; | |
1440 | wacom->led.groups[group_id].count = count; | |
1441 | ||
1442 | for (i = 0; i < count; i++) { | |
1443 | error = wacom_led_register_one(dev, wacom, &leds[i], | |
1444 | group_id, i, read_only); | |
1445 | if (error) | |
1446 | goto err; | |
1447 | } | |
1448 | ||
589e5060 BT |
1449 | wacom->led.groups[group_id].dev = dev; |
1450 | ||
1451 | devres_close_group(dev, &wacom->led.groups[group_id]); | |
1452 | ||
1453 | /* | |
1454 | * There is a bug (?) in devm_led_classdev_register() in which its | |
1455 | * increments the refcount of the parent. If the parent is an input | |
1456 | * device, that means the ref count never reaches 0 when | |
1457 | * devm_input_device_release() gets called. | |
1458 | * This means that the LEDs are still there after disconnect. | |
1459 | * Manually force the release of the group so that the leds are released | |
1460 | * once we are done using them. | |
1461 | */ | |
1462 | error = devm_add_action_or_reset(&wacom->hdev->dev, | |
1463 | wacom_led_groups_release_one, | |
1464 | &wacom->led.groups[group_id]); | |
1465 | if (error) | |
1466 | return error; | |
1467 | ||
97f5541f BT |
1468 | return 0; |
1469 | ||
1470 | err: | |
1471 | devres_release_group(dev, &wacom->led.groups[group_id]); | |
1472 | return error; | |
1473 | } | |
1474 | ||
34736aa9 BT |
1475 | struct wacom_led *wacom_led_find(struct wacom *wacom, unsigned int group_id, |
1476 | unsigned int id) | |
1477 | { | |
1478 | struct wacom_group_leds *group; | |
1479 | ||
1480 | if (group_id >= wacom->led.count) | |
1481 | return NULL; | |
1482 | ||
1483 | group = &wacom->led.groups[group_id]; | |
1484 | ||
1485 | if (!group->leds) | |
1486 | return NULL; | |
1487 | ||
1488 | id %= group->count; | |
1489 | ||
1490 | return &group->leds[id]; | |
1491 | } | |
1492 | ||
1784cd57 | 1493 | /* |
34736aa9 BT |
1494 | * wacom_led_next: gives the next available led with a wacom trigger. |
1495 | * | |
1496 | * returns the next available struct wacom_led which has its default trigger | |
1497 | * or the current one if none is available. | |
1498 | */ | |
1499 | struct wacom_led *wacom_led_next(struct wacom *wacom, struct wacom_led *cur) | |
1500 | { | |
1501 | struct wacom_led *next_led; | |
1502 | int group, next; | |
1503 | ||
1504 | if (!wacom || !cur) | |
1505 | return NULL; | |
1506 | ||
1507 | group = cur->group; | |
1508 | next = cur->id; | |
1509 | ||
1510 | do { | |
1511 | next_led = wacom_led_find(wacom, group, ++next); | |
1512 | if (!next_led || next_led == cur) | |
1513 | return next_led; | |
1514 | } while (next_led->cdev.trigger != &next_led->trigger); | |
1515 | ||
1516 | return next_led; | |
1517 | } | |
1518 | ||
a50aac71 BT |
1519 | static void wacom_led_groups_release(void *data) |
1520 | { | |
1521 | struct wacom *wacom = data; | |
1522 | ||
1523 | wacom->led.groups = NULL; | |
97f5541f | 1524 | wacom->led.count = 0; |
a50aac71 BT |
1525 | } |
1526 | ||
1527 | static int wacom_led_groups_allocate(struct wacom *wacom, int count) | |
1528 | { | |
97f5541f | 1529 | struct device *dev = &wacom->hdev->dev; |
a50aac71 BT |
1530 | struct wacom_group_leds *groups; |
1531 | int error; | |
1532 | ||
a86854d0 | 1533 | groups = devm_kcalloc(dev, count, sizeof(struct wacom_group_leds), |
a50aac71 BT |
1534 | GFP_KERNEL); |
1535 | if (!groups) | |
1536 | return -ENOMEM; | |
1537 | ||
97f5541f | 1538 | error = devm_add_action_or_reset(dev, wacom_led_groups_release, wacom); |
a50aac71 BT |
1539 | if (error) |
1540 | return error; | |
1541 | ||
1542 | wacom->led.groups = groups; | |
97f5541f BT |
1543 | wacom->led.count = count; |
1544 | ||
1545 | return 0; | |
1546 | } | |
1547 | ||
1548 | static int wacom_leds_alloc_and_register(struct wacom *wacom, int group_count, | |
1549 | int led_per_group, bool read_only) | |
1550 | { | |
1551 | struct device *dev; | |
1552 | int i, error; | |
1553 | ||
1554 | if (!wacom->wacom_wac.pad_input) | |
1555 | return -EINVAL; | |
1556 | ||
1557 | dev = &wacom->wacom_wac.pad_input->dev; | |
1558 | ||
1559 | error = wacom_led_groups_allocate(wacom, group_count); | |
1560 | if (error) | |
1561 | return error; | |
1562 | ||
1563 | for (i = 0; i < group_count; i++) { | |
1564 | error = wacom_led_groups_alloc_and_register_one(dev, wacom, i, | |
1565 | led_per_group, | |
1566 | read_only); | |
1567 | if (error) | |
1568 | return error; | |
1569 | } | |
a50aac71 BT |
1570 | |
1571 | return 0; | |
1572 | } | |
1573 | ||
10c55cac | 1574 | int wacom_initialize_leds(struct wacom *wacom) |
5d7e7d47 EH |
1575 | { |
1576 | int error; | |
1577 | ||
862cf553 JG |
1578 | if (!(wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD)) |
1579 | return 0; | |
1580 | ||
09e7d941 PC |
1581 | /* Initialize default values */ |
1582 | switch (wacom->wacom_wac.features.type) { | |
10c55cac AAS |
1583 | case HID_GENERIC: |
1584 | if (!wacom->generic_has_leds) | |
1585 | return 0; | |
1586 | wacom->led.llv = 100; | |
1587 | wacom->led.max_llv = 100; | |
1588 | ||
1589 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); | |
1590 | if (error) { | |
1591 | hid_err(wacom->hdev, | |
1592 | "cannot create leds err: %d\n", error); | |
1593 | return error; | |
1594 | } | |
1595 | ||
1596 | error = wacom_devm_sysfs_create_group(wacom, | |
1597 | &generic_led_attr_group); | |
1598 | break; | |
1599 | ||
a19fc986 | 1600 | case INTUOS4S: |
09e7d941 | 1601 | case INTUOS4: |
81af7e61 | 1602 | case INTUOS4WL: |
09e7d941 | 1603 | case INTUOS4L: |
f4fa9a6d | 1604 | wacom->led.llv = 10; |
5d7e7d47 | 1605 | wacom->led.hlv = 20; |
97f5541f BT |
1606 | wacom->led.max_llv = 127; |
1607 | wacom->led.max_hlv = 127; | |
5d7e7d47 | 1608 | wacom->led.img_lum = 10; |
a50aac71 | 1609 | |
97f5541f | 1610 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); |
a50aac71 BT |
1611 | if (error) { |
1612 | hid_err(wacom->hdev, | |
1613 | "cannot create leds err: %d\n", error); | |
1614 | return error; | |
1615 | } | |
1616 | ||
2df68a88 BT |
1617 | error = wacom_devm_sysfs_create_group(wacom, |
1618 | &intuos4_led_attr_group); | |
09e7d941 PC |
1619 | break; |
1620 | ||
246835fc | 1621 | case WACOM_24HD: |
09e7d941 | 1622 | case WACOM_21UX2: |
09e7d941 PC |
1623 | wacom->led.llv = 0; |
1624 | wacom->led.hlv = 0; | |
1625 | wacom->led.img_lum = 0; | |
5d7e7d47 | 1626 | |
97f5541f | 1627 | error = wacom_leds_alloc_and_register(wacom, 2, 4, false); |
a50aac71 BT |
1628 | if (error) { |
1629 | hid_err(wacom->hdev, | |
1630 | "cannot create leds err: %d\n", error); | |
1631 | return error; | |
1632 | } | |
1633 | ||
2df68a88 BT |
1634 | error = wacom_devm_sysfs_create_group(wacom, |
1635 | &cintiq_led_attr_group); | |
09e7d941 PC |
1636 | break; |
1637 | ||
9b5b95dd JG |
1638 | case INTUOS5S: |
1639 | case INTUOS5: | |
1640 | case INTUOS5L: | |
9a35c411 PC |
1641 | case INTUOSPS: |
1642 | case INTUOSPM: | |
1643 | case INTUOSPL: | |
862cf553 | 1644 | wacom->led.llv = 32; |
97f5541f | 1645 | wacom->led.max_llv = 96; |
862cf553 | 1646 | |
97f5541f | 1647 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); |
a50aac71 BT |
1648 | if (error) { |
1649 | hid_err(wacom->hdev, | |
1650 | "cannot create leds err: %d\n", error); | |
1651 | return error; | |
1652 | } | |
1653 | ||
2df68a88 BT |
1654 | error = wacom_devm_sysfs_create_group(wacom, |
1655 | &intuos5_led_attr_group); | |
9b5b95dd JG |
1656 | break; |
1657 | ||
4922cd26 JG |
1658 | case INTUOSP2_BT: |
1659 | wacom->led.llv = 50; | |
1660 | wacom->led.max_llv = 100; | |
1661 | error = wacom_leds_alloc_and_register(wacom, 1, 4, false); | |
1662 | if (error) { | |
1663 | hid_err(wacom->hdev, | |
1664 | "cannot create leds err: %d\n", error); | |
1665 | return error; | |
1666 | } | |
1667 | return 0; | |
1668 | ||
a50aac71 | 1669 | case REMOTE: |
97f5541f BT |
1670 | wacom->led.llv = 255; |
1671 | wacom->led.max_llv = 255; | |
a50aac71 BT |
1672 | error = wacom_led_groups_allocate(wacom, 5); |
1673 | if (error) { | |
1674 | hid_err(wacom->hdev, | |
1675 | "cannot create leds err: %d\n", error); | |
1676 | return error; | |
1677 | } | |
1678 | return 0; | |
1679 | ||
09e7d941 PC |
1680 | default: |
1681 | return 0; | |
5d7e7d47 EH |
1682 | } |
1683 | ||
09e7d941 | 1684 | if (error) { |
c31a408f | 1685 | hid_err(wacom->hdev, |
09e7d941 PC |
1686 | "cannot create sysfs group err: %d\n", error); |
1687 | return error; | |
1688 | } | |
09e7d941 | 1689 | |
5d7e7d47 EH |
1690 | return 0; |
1691 | } | |
1692 | ||
a544c619 BT |
1693 | static void wacom_init_work(struct work_struct *work) |
1694 | { | |
1695 | struct wacom *wacom = container_of(work, struct wacom, init_work.work); | |
1696 | ||
1697 | _wacom_query_tablet_data(wacom); | |
1698 | wacom_led_control(wacom); | |
1699 | } | |
1700 | ||
1701 | static void wacom_query_tablet_data(struct wacom *wacom) | |
1702 | { | |
1703 | schedule_delayed_work(&wacom->init_work, msecs_to_jiffies(1000)); | |
1704 | } | |
1705 | ||
a1d552cc | 1706 | static enum power_supply_property wacom_battery_props[] = { |
9956953e | 1707 | POWER_SUPPLY_PROP_MODEL_NAME, |
71fa641e | 1708 | POWER_SUPPLY_PROP_PRESENT, |
ac8d1010 | 1709 | POWER_SUPPLY_PROP_STATUS, |
6e2a6e80 | 1710 | POWER_SUPPLY_PROP_SCOPE, |
a1d552cc CB |
1711 | POWER_SUPPLY_PROP_CAPACITY |
1712 | }; | |
1713 | ||
1714 | static int wacom_battery_get_property(struct power_supply *psy, | |
1715 | enum power_supply_property psp, | |
1716 | union power_supply_propval *val) | |
1717 | { | |
59d69bc8 | 1718 | struct wacom_battery *battery = power_supply_get_drvdata(psy); |
a1d552cc CB |
1719 | int ret = 0; |
1720 | ||
1721 | switch (psp) { | |
9956953e BT |
1722 | case POWER_SUPPLY_PROP_MODEL_NAME: |
1723 | val->strval = battery->wacom->wacom_wac.name; | |
1724 | break; | |
71fa641e | 1725 | case POWER_SUPPLY_PROP_PRESENT: |
59d69bc8 | 1726 | val->intval = battery->bat_connected; |
71fa641e | 1727 | break; |
6e2a6e80 BN |
1728 | case POWER_SUPPLY_PROP_SCOPE: |
1729 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
1730 | break; | |
a1d552cc | 1731 | case POWER_SUPPLY_PROP_CAPACITY: |
59d69bc8 | 1732 | val->intval = battery->battery_capacity; |
ac8d1010 BT |
1733 | break; |
1734 | case POWER_SUPPLY_PROP_STATUS: | |
16e45989 JG |
1735 | if (battery->bat_status != WACOM_POWER_SUPPLY_STATUS_AUTO) |
1736 | val->intval = battery->bat_status; | |
1737 | else if (battery->bat_charging) | |
ac8d1010 | 1738 | val->intval = POWER_SUPPLY_STATUS_CHARGING; |
59d69bc8 BT |
1739 | else if (battery->battery_capacity == 100 && |
1740 | battery->ps_connected) | |
ac8d1010 | 1741 | val->intval = POWER_SUPPLY_STATUS_FULL; |
59d69bc8 | 1742 | else if (battery->ps_connected) |
b0882cb7 | 1743 | val->intval = POWER_SUPPLY_STATUS_NOT_CHARGING; |
ac8d1010 BT |
1744 | else |
1745 | val->intval = POWER_SUPPLY_STATUS_DISCHARGING; | |
a1d552cc CB |
1746 | break; |
1747 | default: | |
1748 | ret = -EINVAL; | |
1749 | break; | |
1750 | } | |
1751 | ||
1752 | return ret; | |
1753 | } | |
1754 | ||
59d69bc8 BT |
1755 | static int __wacom_initialize_battery(struct wacom *wacom, |
1756 | struct wacom_battery *battery) | |
a1d552cc | 1757 | { |
d70420b9 | 1758 | static atomic_t battery_no = ATOMIC_INIT(0); |
b189da90 | 1759 | struct device *dev = &wacom->hdev->dev; |
59d69bc8 | 1760 | struct power_supply_config psy_cfg = { .drv_data = battery, }; |
136ae5e9 | 1761 | struct power_supply *ps_bat; |
59d69bc8 | 1762 | struct power_supply_desc *bat_desc = &battery->bat_desc; |
d70420b9 | 1763 | unsigned long n; |
b189da90 BT |
1764 | int error; |
1765 | ||
1766 | if (!devres_open_group(dev, bat_desc, GFP_KERNEL)) | |
1767 | return -ENOMEM; | |
a1d552cc | 1768 | |
9956953e BT |
1769 | battery->wacom = wacom; |
1770 | ||
59d69bc8 BT |
1771 | n = atomic_inc_return(&battery_no) - 1; |
1772 | ||
1773 | bat_desc->properties = wacom_battery_props; | |
1774 | bat_desc->num_properties = ARRAY_SIZE(wacom_battery_props); | |
1775 | bat_desc->get_property = wacom_battery_get_property; | |
1776 | sprintf(battery->bat_name, "wacom_battery_%ld", n); | |
1777 | bat_desc->name = battery->bat_name; | |
6ff1cae2 | 1778 | bat_desc->type = POWER_SUPPLY_TYPE_BATTERY; |
59d69bc8 BT |
1779 | bat_desc->use_for_apm = 0; |
1780 | ||
59d69bc8 BT |
1781 | ps_bat = devm_power_supply_register(dev, bat_desc, &psy_cfg); |
1782 | if (IS_ERR(ps_bat)) { | |
1783 | error = PTR_ERR(ps_bat); | |
1784 | goto err; | |
1785 | } | |
297d716f | 1786 | |
59d69bc8 | 1787 | power_supply_powers(ps_bat, &wacom->hdev->dev); |
7dbd229e | 1788 | |
59d69bc8 | 1789 | battery->battery = ps_bat; |
a1d552cc | 1790 | |
b189da90 | 1791 | devres_close_group(dev, bat_desc); |
7dbd229e | 1792 | return 0; |
b189da90 BT |
1793 | |
1794 | err: | |
1795 | devres_release_group(dev, bat_desc); | |
1796 | return error; | |
a1d552cc CB |
1797 | } |
1798 | ||
59d69bc8 BT |
1799 | static int wacom_initialize_battery(struct wacom *wacom) |
1800 | { | |
1801 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) | |
1802 | return __wacom_initialize_battery(wacom, &wacom->battery); | |
1803 | ||
1804 | return 0; | |
1805 | } | |
1806 | ||
a1d552cc CB |
1807 | static void wacom_destroy_battery(struct wacom *wacom) |
1808 | { | |
59d69bc8 BT |
1809 | if (wacom->battery.battery) { |
1810 | devres_release_group(&wacom->hdev->dev, | |
1811 | &wacom->battery.bat_desc); | |
1812 | wacom->battery.battery = NULL; | |
b7af2bb8 | 1813 | } |
a1d552cc CB |
1814 | } |
1815 | ||
f81a1295 BT |
1816 | static ssize_t wacom_show_speed(struct device *dev, |
1817 | struct device_attribute | |
1818 | *attr, char *buf) | |
1819 | { | |
ee79a8f8 | 1820 | struct hid_device *hdev = to_hid_device(dev); |
f81a1295 BT |
1821 | struct wacom *wacom = hid_get_drvdata(hdev); |
1822 | ||
d8833124 | 1823 | return sysfs_emit(buf, "%i\n", wacom->wacom_wac.bt_high_speed); |
f81a1295 BT |
1824 | } |
1825 | ||
1826 | static ssize_t wacom_store_speed(struct device *dev, | |
1827 | struct device_attribute *attr, | |
1828 | const char *buf, size_t count) | |
1829 | { | |
ee79a8f8 | 1830 | struct hid_device *hdev = to_hid_device(dev); |
f81a1295 BT |
1831 | struct wacom *wacom = hid_get_drvdata(hdev); |
1832 | u8 new_speed; | |
1833 | ||
1834 | if (kstrtou8(buf, 0, &new_speed)) | |
1835 | return -EINVAL; | |
1836 | ||
1837 | if (new_speed != 0 && new_speed != 1) | |
1838 | return -EINVAL; | |
1839 | ||
1840 | wacom_bt_query_tablet_data(hdev, new_speed, &wacom->wacom_wac.features); | |
1841 | ||
1842 | return count; | |
1843 | } | |
1844 | ||
e0984bc3 | 1845 | static DEVICE_ATTR(speed, DEV_ATTR_RW_PERM, |
f81a1295 BT |
1846 | wacom_show_speed, wacom_store_speed); |
1847 | ||
72b236d6 AS |
1848 | |
1849 | static ssize_t wacom_show_remote_mode(struct kobject *kobj, | |
1850 | struct kobj_attribute *kattr, | |
1851 | char *buf, int index) | |
1852 | { | |
2cf83833 | 1853 | struct device *dev = kobj_to_dev(kobj->parent); |
ee79a8f8 | 1854 | struct hid_device *hdev = to_hid_device(dev); |
72b236d6 AS |
1855 | struct wacom *wacom = hid_get_drvdata(hdev); |
1856 | u8 mode; | |
1857 | ||
a50aac71 | 1858 | mode = wacom->led.groups[index].select; |
bc35f73a | 1859 | return sprintf(buf, "%d\n", mode < 3 ? mode : -1); |
72b236d6 AS |
1860 | } |
1861 | ||
1862 | #define DEVICE_EKR_ATTR_GROUP(SET_ID) \ | |
1863 | static ssize_t wacom_show_remote##SET_ID##_mode(struct kobject *kobj, \ | |
1864 | struct kobj_attribute *kattr, char *buf) \ | |
1865 | { \ | |
1866 | return wacom_show_remote_mode(kobj, kattr, buf, SET_ID); \ | |
1867 | } \ | |
1868 | static struct kobj_attribute remote##SET_ID##_mode_attr = { \ | |
1869 | .attr = {.name = "remote_mode", \ | |
1870 | .mode = DEV_ATTR_RO_PERM}, \ | |
1871 | .show = wacom_show_remote##SET_ID##_mode, \ | |
1872 | }; \ | |
1873 | static struct attribute *remote##SET_ID##_serial_attrs[] = { \ | |
1874 | &remote##SET_ID##_mode_attr.attr, \ | |
1875 | NULL \ | |
1876 | }; \ | |
2a6a35a9 | 1877 | static const struct attribute_group remote##SET_ID##_serial_group = { \ |
72b236d6 AS |
1878 | .name = NULL, \ |
1879 | .attrs = remote##SET_ID##_serial_attrs, \ | |
1880 | } | |
1881 | ||
1882 | DEVICE_EKR_ATTR_GROUP(0); | |
1883 | DEVICE_EKR_ATTR_GROUP(1); | |
1884 | DEVICE_EKR_ATTR_GROUP(2); | |
1885 | DEVICE_EKR_ATTR_GROUP(3); | |
1886 | DEVICE_EKR_ATTR_GROUP(4); | |
1887 | ||
e6f2813a BT |
1888 | static int wacom_remote_create_attr_group(struct wacom *wacom, __u32 serial, |
1889 | int index) | |
72b236d6 AS |
1890 | { |
1891 | int error = 0; | |
83e6b40e | 1892 | struct wacom_remote *remote = wacom->remote; |
72b236d6 | 1893 | |
e7749f6e | 1894 | remote->remotes[index].group.name = devm_kasprintf(&wacom->hdev->dev, |
83e6b40e BT |
1895 | GFP_KERNEL, |
1896 | "%d", serial); | |
e7749f6e | 1897 | if (!remote->remotes[index].group.name) |
72b236d6 | 1898 | return -ENOMEM; |
72b236d6 | 1899 | |
f9036bd4 | 1900 | error = __wacom_devm_sysfs_create_group(wacom, remote->remote_dir, |
e7749f6e | 1901 | &remote->remotes[index].group); |
72b236d6 | 1902 | if (error) { |
e7749f6e | 1903 | remote->remotes[index].group.name = NULL; |
72b236d6 AS |
1904 | hid_err(wacom->hdev, |
1905 | "cannot create sysfs group err: %d\n", error); | |
72b236d6 AS |
1906 | return error; |
1907 | } | |
1908 | ||
1909 | return 0; | |
1910 | } | |
1911 | ||
72b236d6 AS |
1912 | static int wacom_cmd_unpair_remote(struct wacom *wacom, unsigned char selector) |
1913 | { | |
1914 | const size_t buf_size = 2; | |
1915 | unsigned char *buf; | |
1916 | int retval; | |
1917 | ||
1918 | buf = kzalloc(buf_size, GFP_KERNEL); | |
1919 | if (!buf) | |
1920 | return -ENOMEM; | |
1921 | ||
1922 | buf[0] = WAC_CMD_DELETE_PAIRING; | |
1923 | buf[1] = selector; | |
1924 | ||
1925 | retval = wacom_set_report(wacom->hdev, HID_OUTPUT_REPORT, buf, | |
1926 | buf_size, WAC_CMD_RETRIES); | |
1927 | kfree(buf); | |
1928 | ||
1929 | return retval; | |
1930 | } | |
1931 | ||
1932 | static ssize_t wacom_store_unpair_remote(struct kobject *kobj, | |
1933 | struct kobj_attribute *attr, | |
1934 | const char *buf, size_t count) | |
1935 | { | |
1936 | unsigned char selector = 0; | |
2cf83833 | 1937 | struct device *dev = kobj_to_dev(kobj->parent); |
ee79a8f8 | 1938 | struct hid_device *hdev = to_hid_device(dev); |
72b236d6 AS |
1939 | struct wacom *wacom = hid_get_drvdata(hdev); |
1940 | int err; | |
1941 | ||
1942 | if (!strncmp(buf, "*\n", 2)) { | |
1943 | selector = WAC_CMD_UNPAIR_ALL; | |
1944 | } else { | |
1945 | hid_info(wacom->hdev, "remote: unrecognized unpair code: %s\n", | |
1946 | buf); | |
1947 | return -1; | |
1948 | } | |
1949 | ||
1950 | mutex_lock(&wacom->lock); | |
1951 | ||
1952 | err = wacom_cmd_unpair_remote(wacom, selector); | |
1953 | mutex_unlock(&wacom->lock); | |
1954 | ||
1955 | return err < 0 ? err : count; | |
1956 | } | |
1957 | ||
1958 | static struct kobj_attribute unpair_remote_attr = { | |
1959 | .attr = {.name = "unpair_remote", .mode = 0200}, | |
1960 | .store = wacom_store_unpair_remote, | |
1961 | }; | |
1962 | ||
1963 | static const struct attribute *remote_unpair_attrs[] = { | |
1964 | &unpair_remote_attr.attr, | |
1965 | NULL | |
1966 | }; | |
1967 | ||
83e6b40e BT |
1968 | static void wacom_remotes_destroy(void *data) |
1969 | { | |
1970 | struct wacom *wacom = data; | |
1971 | struct wacom_remote *remote = wacom->remote; | |
1972 | ||
1973 | if (!remote) | |
1974 | return; | |
1975 | ||
1976 | kobject_put(remote->remote_dir); | |
1977 | kfifo_free(&remote->remote_fifo); | |
1978 | wacom->remote = NULL; | |
1979 | } | |
1980 | ||
1981 | static int wacom_initialize_remotes(struct wacom *wacom) | |
72b236d6 AS |
1982 | { |
1983 | int error = 0; | |
83e6b40e | 1984 | struct wacom_remote *remote; |
72b236d6 AS |
1985 | int i; |
1986 | ||
1987 | if (wacom->wacom_wac.features.type != REMOTE) | |
1988 | return 0; | |
1989 | ||
83e6b40e BT |
1990 | remote = devm_kzalloc(&wacom->hdev->dev, sizeof(*wacom->remote), |
1991 | GFP_KERNEL); | |
1992 | if (!remote) | |
1993 | return -ENOMEM; | |
72b236d6 | 1994 | |
83e6b40e BT |
1995 | wacom->remote = remote; |
1996 | ||
1997 | spin_lock_init(&remote->remote_lock); | |
1998 | ||
1999 | error = kfifo_alloc(&remote->remote_fifo, | |
55ab9b2c | 2000 | 5 * sizeof(struct wacom_remote_work_data), |
83e6b40e BT |
2001 | GFP_KERNEL); |
2002 | if (error) { | |
2003 | hid_err(wacom->hdev, "failed allocating remote_fifo\n"); | |
72b236d6 | 2004 | return -ENOMEM; |
83e6b40e | 2005 | } |
72b236d6 | 2006 | |
e7749f6e BT |
2007 | remote->remotes[0].group = remote0_serial_group; |
2008 | remote->remotes[1].group = remote1_serial_group; | |
2009 | remote->remotes[2].group = remote2_serial_group; | |
2010 | remote->remotes[3].group = remote3_serial_group; | |
2011 | remote->remotes[4].group = remote4_serial_group; | |
83e6b40e BT |
2012 | |
2013 | remote->remote_dir = kobject_create_and_add("wacom_remote", | |
2014 | &wacom->hdev->dev.kobj); | |
2015 | if (!remote->remote_dir) | |
2016 | return -ENOMEM; | |
2017 | ||
2018 | error = sysfs_create_files(remote->remote_dir, remote_unpair_attrs); | |
72b236d6 AS |
2019 | |
2020 | if (error) { | |
2021 | hid_err(wacom->hdev, | |
2022 | "cannot create sysfs group err: %d\n", error); | |
2023 | return error; | |
2024 | } | |
2025 | ||
2026 | for (i = 0; i < WACOM_MAX_REMOTES; i++) { | |
a50aac71 | 2027 | wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN; |
e7749f6e | 2028 | remote->remotes[i].serial = 0; |
72b236d6 AS |
2029 | } |
2030 | ||
83e6b40e BT |
2031 | error = devm_add_action_or_reset(&wacom->hdev->dev, |
2032 | wacom_remotes_destroy, wacom); | |
2033 | if (error) | |
2034 | return error; | |
2035 | ||
72b236d6 AS |
2036 | return 0; |
2037 | } | |
2038 | ||
d2d13f18 | 2039 | static struct input_dev *wacom_allocate_input(struct wacom *wacom) |
3aac0ef1 CB |
2040 | { |
2041 | struct input_dev *input_dev; | |
b6c79f2c | 2042 | struct hid_device *hdev = wacom->hdev; |
3aac0ef1 | 2043 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); |
3aac0ef1 | 2044 | |
3dad188e | 2045 | input_dev = devm_input_allocate_device(&hdev->dev); |
d2d13f18 BT |
2046 | if (!input_dev) |
2047 | return NULL; | |
3aac0ef1 | 2048 | |
2bdd163c | 2049 | input_dev->name = wacom_wac->features.name; |
b6c79f2c BT |
2050 | input_dev->phys = hdev->phys; |
2051 | input_dev->dev.parent = &hdev->dev; | |
3aac0ef1 CB |
2052 | input_dev->open = wacom_open; |
2053 | input_dev->close = wacom_close; | |
b6c79f2c BT |
2054 | input_dev->uniq = hdev->uniq; |
2055 | input_dev->id.bustype = hdev->bus; | |
2056 | input_dev->id.vendor = hdev->vendor; | |
12969e3b | 2057 | input_dev->id.product = wacom_wac->pid ? wacom_wac->pid : hdev->product; |
b6c79f2c | 2058 | input_dev->id.version = hdev->version; |
3aac0ef1 CB |
2059 | input_set_drvdata(input_dev, wacom); |
2060 | ||
d2d13f18 BT |
2061 | return input_dev; |
2062 | } | |
2063 | ||
d9f2d203 JG |
2064 | static int wacom_allocate_inputs(struct wacom *wacom) |
2065 | { | |
2066 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
2067 | ||
2068 | wacom_wac->pen_input = wacom_allocate_input(wacom); | |
2069 | wacom_wac->touch_input = wacom_allocate_input(wacom); | |
2070 | wacom_wac->pad_input = wacom_allocate_input(wacom); | |
3dad188e BT |
2071 | if (!wacom_wac->pen_input || |
2072 | !wacom_wac->touch_input || | |
2073 | !wacom_wac->pad_input) | |
d9f2d203 | 2074 | return -ENOMEM; |
d9f2d203 | 2075 | |
2bdd163c | 2076 | wacom_wac->pen_input->name = wacom_wac->pen_name; |
d9f2d203 JG |
2077 | wacom_wac->touch_input->name = wacom_wac->touch_name; |
2078 | wacom_wac->pad_input->name = wacom_wac->pad_name; | |
2079 | ||
2080 | return 0; | |
2081 | } | |
2082 | ||
2546dacd BT |
2083 | static int wacom_register_inputs(struct wacom *wacom) |
2084 | { | |
2a6cdbdd | 2085 | struct input_dev *pen_input_dev, *touch_input_dev, *pad_input_dev; |
2546dacd | 2086 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); |
2636a3f2 | 2087 | int error = 0; |
2546dacd | 2088 | |
2a6cdbdd JG |
2089 | pen_input_dev = wacom_wac->pen_input; |
2090 | touch_input_dev = wacom_wac->touch_input; | |
2546dacd BT |
2091 | pad_input_dev = wacom_wac->pad_input; |
2092 | ||
2a6cdbdd | 2093 | if (!pen_input_dev || !touch_input_dev || !pad_input_dev) |
2546dacd BT |
2094 | return -EINVAL; |
2095 | ||
2a6cdbdd JG |
2096 | error = wacom_setup_pen_input_capabilities(pen_input_dev, wacom_wac); |
2097 | if (error) { | |
2098 | /* no pen in use on this interface */ | |
2099 | input_free_device(pen_input_dev); | |
2100 | wacom_wac->pen_input = NULL; | |
2101 | pen_input_dev = NULL; | |
2102 | } else { | |
2103 | error = input_register_device(pen_input_dev); | |
2104 | if (error) | |
3dad188e | 2105 | goto fail; |
2a6cdbdd JG |
2106 | } |
2107 | ||
2108 | error = wacom_setup_touch_input_capabilities(touch_input_dev, wacom_wac); | |
2109 | if (error) { | |
2110 | /* no touch in use on this interface */ | |
2111 | input_free_device(touch_input_dev); | |
2112 | wacom_wac->touch_input = NULL; | |
2113 | touch_input_dev = NULL; | |
2114 | } else { | |
2115 | error = input_register_device(touch_input_dev); | |
30ebc1ae | 2116 | if (error) |
3dad188e | 2117 | goto fail; |
30ebc1ae | 2118 | } |
1963518b | 2119 | |
d2d13f18 BT |
2120 | error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac); |
2121 | if (error) { | |
d6b67568 | 2122 | /* no pad events using this interface */ |
d2d13f18 BT |
2123 | input_free_device(pad_input_dev); |
2124 | wacom_wac->pad_input = NULL; | |
2125 | pad_input_dev = NULL; | |
2126 | } else { | |
2127 | error = input_register_device(pad_input_dev); | |
2128 | if (error) | |
3dad188e | 2129 | goto fail; |
d2d13f18 BT |
2130 | } |
2131 | ||
1963518b | 2132 | return 0; |
3aac0ef1 | 2133 | |
3dad188e BT |
2134 | fail: |
2135 | wacom_wac->pad_input = NULL; | |
2a6cdbdd | 2136 | wacom_wac->touch_input = NULL; |
2a6cdbdd | 2137 | wacom_wac->pen_input = NULL; |
3aac0ef1 CB |
2138 | return error; |
2139 | } | |
2140 | ||
0be01712 JG |
2141 | /* |
2142 | * Not all devices report physical dimensions from HID. | |
2143 | * Compute the default from hardcoded logical dimension | |
2144 | * and resolution before driver overwrites them. | |
2145 | */ | |
2146 | static void wacom_set_default_phy(struct wacom_features *features) | |
2147 | { | |
2148 | if (features->x_resolution) { | |
2149 | features->x_phy = (features->x_max * 100) / | |
2150 | features->x_resolution; | |
2151 | features->y_phy = (features->y_max * 100) / | |
2152 | features->y_resolution; | |
2153 | } | |
2154 | } | |
2155 | ||
2156 | static void wacom_calculate_res(struct wacom_features *features) | |
2157 | { | |
2158 | /* set unit to "100th of a mm" for devices not reported by HID */ | |
2159 | if (!features->unit) { | |
2160 | features->unit = 0x11; | |
2161 | features->unitExpo = -3; | |
2162 | } | |
2163 | ||
2164 | features->x_resolution = wacom_calc_hid_res(features->x_max, | |
2165 | features->x_phy, | |
2166 | features->unit, | |
2167 | features->unitExpo); | |
2168 | features->y_resolution = wacom_calc_hid_res(features->y_max, | |
2169 | features->y_phy, | |
2170 | features->unit, | |
2171 | features->unitExpo); | |
2172 | } | |
2173 | ||
fce9957d JG |
2174 | void wacom_battery_work(struct work_struct *work) |
2175 | { | |
d17d1f17 | 2176 | struct wacom *wacom = container_of(work, struct wacom, battery_work); |
fce9957d JG |
2177 | |
2178 | if ((wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) && | |
59d69bc8 | 2179 | !wacom->battery.battery) { |
fce9957d JG |
2180 | wacom_initialize_battery(wacom); |
2181 | } | |
2182 | else if (!(wacom->wacom_wac.features.quirks & WACOM_QUIRK_BATTERY) && | |
59d69bc8 | 2183 | wacom->battery.battery) { |
fce9957d JG |
2184 | wacom_destroy_battery(wacom); |
2185 | } | |
2186 | } | |
2187 | ||
01c846f9 BT |
2188 | static size_t wacom_compute_pktlen(struct hid_device *hdev) |
2189 | { | |
2190 | struct hid_report_enum *report_enum; | |
2191 | struct hid_report *report; | |
2192 | size_t size = 0; | |
2193 | ||
2194 | report_enum = hdev->report_enum + HID_INPUT_REPORT; | |
2195 | ||
2196 | list_for_each_entry(report, &report_enum->report_list, list) { | |
dabb05c6 | 2197 | size_t report_size = hid_report_len(report); |
01c846f9 BT |
2198 | if (report_size > size) |
2199 | size = report_size; | |
2200 | } | |
2201 | ||
2202 | return size; | |
2203 | } | |
2204 | ||
fd5f92b6 | 2205 | static void wacom_update_name(struct wacom *wacom, const char *suffix) |
c24eab4e PC |
2206 | { |
2207 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
2208 | struct wacom_features *features = &wacom_wac->features; | |
073b50bc | 2209 | char name[WACOM_NAME_MAX - 20]; /* Leave some room for suffixes */ |
c24eab4e PC |
2210 | |
2211 | /* Generic devices name unspecified */ | |
2212 | if ((features->type == HID_GENERIC) && !strcmp("Wacom HID", features->name)) { | |
09dc28ac | 2213 | char *product_name = wacom->hdev->name; |
f2209d4a | 2214 | |
f83baa0c | 2215 | if (hid_is_usb(wacom->hdev)) { |
09dc28ac JG |
2216 | struct usb_interface *intf = to_usb_interface(wacom->hdev->dev.parent); |
2217 | struct usb_device *dev = interface_to_usbdev(intf); | |
2218 | product_name = dev->product; | |
2219 | } | |
f2209d4a | 2220 | |
09dc28ac JG |
2221 | if (wacom->hdev->bus == BUS_I2C) { |
2222 | snprintf(name, sizeof(name), "%s %X", | |
2223 | features->name, wacom->hdev->product); | |
2224 | } else if (strstr(product_name, "Wacom") || | |
2225 | strstr(product_name, "wacom") || | |
2226 | strstr(product_name, "WACOM")) { | |
d9eef346 JG |
2227 | if (strscpy(name, product_name, sizeof(name)) < 0) { |
2228 | hid_warn(wacom->hdev, "String overflow while assembling device name"); | |
2229 | } | |
c24eab4e | 2230 | } else { |
09dc28ac | 2231 | snprintf(name, sizeof(name), "Wacom %s", product_name); |
c24eab4e | 2232 | } |
09dc28ac JG |
2233 | |
2234 | /* strip out excess whitespaces */ | |
2235 | while (1) { | |
2236 | char *gap = strstr(name, " "); | |
2237 | if (gap == NULL) | |
2238 | break; | |
2239 | /* shift everything including the terminator */ | |
2240 | memmove(gap, gap+1, strlen(gap)); | |
2241 | } | |
2242 | ||
2243 | /* get rid of trailing whitespace */ | |
2244 | if (name[strlen(name)-1] == ' ') | |
2245 | name[strlen(name)-1] = '\0'; | |
c24eab4e | 2246 | } else { |
d9eef346 JG |
2247 | if (strscpy(name, features->name, sizeof(name)) < 0) { |
2248 | hid_warn(wacom->hdev, "String overflow while assembling device name"); | |
2249 | } | |
c24eab4e PC |
2250 | } |
2251 | ||
9956953e BT |
2252 | snprintf(wacom_wac->name, sizeof(wacom_wac->name), "%s%s", |
2253 | name, suffix); | |
2254 | ||
c24eab4e | 2255 | /* Append the device type to the name */ |
2a6cdbdd | 2256 | snprintf(wacom_wac->pen_name, sizeof(wacom_wac->pen_name), |
fd5f92b6 | 2257 | "%s%s Pen", name, suffix); |
2a6cdbdd | 2258 | snprintf(wacom_wac->touch_name, sizeof(wacom_wac->touch_name), |
fd5f92b6 | 2259 | "%s%s Finger", name, suffix); |
c24eab4e | 2260 | snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name), |
fd5f92b6 | 2261 | "%s%s Pad", name, suffix); |
c24eab4e PC |
2262 | } |
2263 | ||
84dfbd7f BT |
2264 | static void wacom_release_resources(struct wacom *wacom) |
2265 | { | |
2266 | struct hid_device *hdev = wacom->hdev; | |
2267 | ||
2268 | if (!wacom->resources) | |
2269 | return; | |
2270 | ||
2271 | devres_release_group(&hdev->dev, wacom); | |
2272 | ||
2273 | wacom->resources = false; | |
2274 | ||
2275 | wacom->wacom_wac.pen_input = NULL; | |
2276 | wacom->wacom_wac.touch_input = NULL; | |
2277 | wacom->wacom_wac.pad_input = NULL; | |
2278 | } | |
2279 | ||
d2ec58ae AAS |
2280 | static void wacom_set_shared_values(struct wacom_wac *wacom_wac) |
2281 | { | |
2282 | if (wacom_wac->features.device_type & WACOM_DEVICETYPE_TOUCH) { | |
2283 | wacom_wac->shared->type = wacom_wac->features.type; | |
2284 | wacom_wac->shared->touch_input = wacom_wac->touch_input; | |
2285 | } | |
2286 | ||
d793ff81 | 2287 | if (wacom_wac->has_mute_touch_switch) { |
d2ec58ae | 2288 | wacom_wac->shared->has_mute_touch_switch = true; |
dc9dc864 PC |
2289 | /* Hardware touch switch may be off. Wait until |
2290 | * we know the switch state to decide is_touch_on. | |
2291 | * Softkey state should be initialized to "on" to | |
2292 | * match historic default. | |
2293 | */ | |
2294 | if (wacom_wac->is_soft_touch_switch) | |
2295 | wacom_wac->shared->is_touch_on = true; | |
d793ff81 | 2296 | } |
d2ec58ae AAS |
2297 | |
2298 | if (wacom_wac->shared->has_mute_touch_switch && | |
2299 | wacom_wac->shared->touch_input) { | |
2300 | set_bit(EV_SW, wacom_wac->shared->touch_input->evbit); | |
2301 | input_set_capability(wacom_wac->shared->touch_input, EV_SW, | |
2302 | SW_MUTE_DEVICE); | |
2303 | } | |
2304 | } | |
2305 | ||
fd5f92b6 | 2306 | static int wacom_parse_and_register(struct wacom *wacom, bool wireless) |
3bea733a | 2307 | { |
c58ac3a8 BT |
2308 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; |
2309 | struct wacom_features *features = &wacom_wac->features; | |
2310 | struct hid_device *hdev = wacom->hdev; | |
e33da8a5 | 2311 | int error; |
7704ac93 | 2312 | unsigned int connect_mask = HID_CONNECT_HIDRAW; |
3bea733a | 2313 | |
01c846f9 | 2314 | features->pktlen = wacom_compute_pktlen(hdev); |
c58ac3a8 BT |
2315 | if (features->pktlen > WACOM_PKGLEN_MAX) |
2316 | return -EINVAL; | |
3bea733a | 2317 | |
84dfbd7f BT |
2318 | if (!devres_open_group(&hdev->dev, wacom, GFP_KERNEL)) |
2319 | return -ENOMEM; | |
2320 | ||
2321 | wacom->resources = true; | |
2322 | ||
3f14a63a JG |
2323 | error = wacom_allocate_inputs(wacom); |
2324 | if (error) | |
3888b0d5 | 2325 | goto fail; |
494078b0 | 2326 | |
8c97a765 BT |
2327 | /* |
2328 | * Bamboo Pad has a generic hid handling for the Pen, and we switch it | |
2329 | * into debug mode for the touch part. | |
2330 | * We ignore the other interfaces. | |
2331 | */ | |
2332 | if (features->type == BAMBOO_PAD) { | |
2333 | if (features->pktlen == WACOM_PKGLEN_PENABLED) { | |
2334 | features->type = HID_GENERIC; | |
2335 | } else if ((features->pktlen != WACOM_PKGLEN_BPAD_TOUCH) && | |
2336 | (features->pktlen != WACOM_PKGLEN_BPAD_TOUCH_USB)) { | |
2337 | error = -ENODEV; | |
3888b0d5 | 2338 | goto fail; |
8c97a765 BT |
2339 | } |
2340 | } | |
2341 | ||
401d7d10 PC |
2342 | /* set the default size in case we do not get them from hid */ |
2343 | wacom_set_default_phy(features); | |
2344 | ||
f393ee2b | 2345 | /* Retrieve the physical and logical size for touch devices */ |
c669fb2b | 2346 | wacom_retrieve_hid_descriptor(hdev, features); |
42f4f272 | 2347 | wacom_setup_device_quirks(wacom); |
042628ab | 2348 | |
aa86b18c JG |
2349 | if (features->device_type == WACOM_DEVICETYPE_NONE && |
2350 | features->type != WIRELESS) { | |
8e116d31 JG |
2351 | error = features->type == HID_GENERIC ? -ENODEV : 0; |
2352 | ||
042628ab | 2353 | dev_warn(&hdev->dev, "Unknown device_type for '%s'. %s.", |
8e116d31 JG |
2354 | hdev->name, |
2355 | error ? "Ignoring" : "Assuming pen"); | |
2356 | ||
2357 | if (error) | |
3888b0d5 | 2358 | goto fail; |
042628ab | 2359 | |
aa86b18c | 2360 | features->device_type |= WACOM_DEVICETYPE_PEN; |
042628ab JG |
2361 | } |
2362 | ||
401d7d10 PC |
2363 | wacom_calculate_res(features); |
2364 | ||
fd5f92b6 | 2365 | wacom_update_name(wacom, wireless ? " (WL)" : ""); |
4492efff | 2366 | |
8b407359 AAS |
2367 | /* pen only Bamboo neither support touch nor pad */ |
2368 | if ((features->type == BAMBOO_PEN) && | |
2369 | ((features->device_type & WACOM_DEVICETYPE_TOUCH) || | |
2370 | (features->device_type & WACOM_DEVICETYPE_PAD))) { | |
2371 | error = -ENODEV; | |
2372 | goto fail; | |
2373 | } | |
2374 | ||
a9ce7856 JG |
2375 | error = wacom_add_shared_data(hdev); |
2376 | if (error) | |
2377 | goto fail; | |
49b764ae | 2378 | |
3f14a63a JG |
2379 | error = wacom_register_inputs(wacom); |
2380 | if (error) | |
3888b0d5 | 2381 | goto fail; |
f81a1295 | 2382 | |
b62f6465 | 2383 | if (wacom->wacom_wac.features.device_type & WACOM_DEVICETYPE_PAD) { |
85d2c77b BT |
2384 | error = wacom_initialize_leds(wacom); |
2385 | if (error) | |
3888b0d5 | 2386 | goto fail; |
85d2c77b | 2387 | |
83e6b40e | 2388 | error = wacom_initialize_remotes(wacom); |
b62f6465 | 2389 | if (error) |
3888b0d5 | 2390 | goto fail; |
b62f6465 BT |
2391 | } |
2392 | ||
7704ac93 BT |
2393 | if (features->type == HID_GENERIC) |
2394 | connect_mask |= HID_CONNECT_DRIVER; | |
2395 | ||
29b47391 | 2396 | /* Regular HID work starts now */ |
7704ac93 | 2397 | error = hid_hw_start(hdev, connect_mask); |
29b47391 BT |
2398 | if (error) { |
2399 | hid_err(hdev, "hw start failed\n"); | |
3888b0d5 | 2400 | goto fail; |
d3825d51 | 2401 | } |
961794a0 | 2402 | |
fd5f92b6 BT |
2403 | if (!wireless) { |
2404 | /* Note that if query fails it is not a hard failure */ | |
a544c619 | 2405 | wacom_query_tablet_data(wacom); |
fd5f92b6 | 2406 | } |
86e88f0e JG |
2407 | |
2408 | /* touch only Bamboo doesn't support pen */ | |
2409 | if ((features->type == BAMBOO_TOUCH) && | |
2410 | (features->device_type & WACOM_DEVICETYPE_PEN)) { | |
4d20c332 AAS |
2411 | cancel_delayed_work_sync(&wacom->init_work); |
2412 | _wacom_query_tablet_data(wacom); | |
86e88f0e | 2413 | error = -ENODEV; |
b62f6465 | 2414 | goto fail_quirks; |
86e88f0e JG |
2415 | } |
2416 | ||
16a9c24f | 2417 | if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR) { |
29b47391 | 2418 | error = hid_hw_open(hdev); |
16a9c24f DA |
2419 | if (error) { |
2420 | hid_err(hdev, "hw open failed\n"); | |
2421 | goto fail_quirks; | |
2422 | } | |
2423 | } | |
29b47391 | 2424 | |
d2ec58ae | 2425 | wacom_set_shared_values(wacom_wac); |
84dfbd7f BT |
2426 | devres_close_group(&hdev->dev, wacom); |
2427 | ||
3bea733a PC |
2428 | return 0; |
2429 | ||
b62f6465 | 2430 | fail_quirks: |
c58ac3a8 | 2431 | hid_hw_stop(hdev); |
3888b0d5 | 2432 | fail: |
84dfbd7f | 2433 | wacom_release_resources(wacom); |
c58ac3a8 BT |
2434 | return error; |
2435 | } | |
2436 | ||
a2f091af BT |
2437 | static void wacom_wireless_work(struct work_struct *work) |
2438 | { | |
d17d1f17 | 2439 | struct wacom *wacom = container_of(work, struct wacom, wireless_work); |
a2f091af BT |
2440 | struct usb_device *usbdev = wacom->usbdev; |
2441 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
2442 | struct hid_device *hdev1, *hdev2; | |
2443 | struct wacom *wacom1, *wacom2; | |
2444 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
2445 | int error; | |
2446 | ||
2447 | /* | |
2448 | * Regardless if this is a disconnect or a new tablet, | |
2449 | * remove any existing input and battery devices. | |
2450 | */ | |
2451 | ||
2452 | wacom_destroy_battery(wacom); | |
2453 | ||
720ac467 GKH |
2454 | if (!usbdev) |
2455 | return; | |
2456 | ||
a2f091af BT |
2457 | /* Stylus interface */ |
2458 | hdev1 = usb_get_intfdata(usbdev->config->interface[1]); | |
2459 | wacom1 = hid_get_drvdata(hdev1); | |
2460 | wacom_wac1 = &(wacom1->wacom_wac); | |
84dfbd7f | 2461 | wacom_release_resources(wacom1); |
a2f091af BT |
2462 | |
2463 | /* Touch interface */ | |
2464 | hdev2 = usb_get_intfdata(usbdev->config->interface[2]); | |
2465 | wacom2 = hid_get_drvdata(hdev2); | |
2466 | wacom_wac2 = &(wacom2->wacom_wac); | |
84dfbd7f | 2467 | wacom_release_resources(wacom2); |
a2f091af BT |
2468 | |
2469 | if (wacom_wac->pid == 0) { | |
2470 | hid_info(wacom->hdev, "wireless tablet disconnected\n"); | |
a2f091af BT |
2471 | } else { |
2472 | const struct hid_device_id *id = wacom_ids; | |
2473 | ||
2474 | hid_info(wacom->hdev, "wireless tablet connected with PID %x\n", | |
2475 | wacom_wac->pid); | |
2476 | ||
2477 | while (id->bus) { | |
2478 | if (id->vendor == USB_VENDOR_ID_WACOM && | |
2479 | id->product == wacom_wac->pid) | |
2480 | break; | |
2481 | id++; | |
2482 | } | |
2483 | ||
2484 | if (!id->bus) { | |
2485 | hid_info(wacom->hdev, "ignoring unknown PID.\n"); | |
2486 | return; | |
2487 | } | |
2488 | ||
2489 | /* Stylus interface */ | |
2490 | wacom_wac1->features = | |
2491 | *((struct wacom_features *)id->driver_data); | |
fd5f92b6 | 2492 | |
a2f091af | 2493 | wacom_wac1->pid = wacom_wac->pid; |
fd5f92b6 BT |
2494 | hid_hw_stop(hdev1); |
2495 | error = wacom_parse_and_register(wacom1, true); | |
a2f091af BT |
2496 | if (error) |
2497 | goto fail; | |
2498 | ||
2499 | /* Touch interface */ | |
2500 | if (wacom_wac1->features.touch_max || | |
2501 | (wacom_wac1->features.type >= INTUOSHT && | |
2502 | wacom_wac1->features.type <= BAMBOO_PT)) { | |
2503 | wacom_wac2->features = | |
2504 | *((struct wacom_features *)id->driver_data); | |
a2f091af | 2505 | wacom_wac2->pid = wacom_wac->pid; |
fd5f92b6 BT |
2506 | hid_hw_stop(hdev2); |
2507 | error = wacom_parse_and_register(wacom2, true); | |
a2f091af BT |
2508 | if (error) |
2509 | goto fail; | |
a2f091af BT |
2510 | } |
2511 | ||
d9eef346 JG |
2512 | if (strscpy(wacom_wac->name, wacom_wac1->name, |
2513 | sizeof(wacom_wac->name)) < 0) { | |
2514 | hid_warn(wacom->hdev, "String overflow while assembling device name"); | |
2515 | } | |
a2f091af BT |
2516 | } |
2517 | ||
2518 | return; | |
2519 | ||
2520 | fail: | |
84dfbd7f | 2521 | wacom_release_resources(wacom1); |
84dfbd7f | 2522 | wacom_release_resources(wacom2); |
a2f091af BT |
2523 | return; |
2524 | } | |
2525 | ||
9ac6678b AAS |
2526 | static void wacom_remote_destroy_battery(struct wacom *wacom, int index) |
2527 | { | |
2528 | struct wacom_remote *remote = wacom->remote; | |
2529 | ||
2530 | if (remote->remotes[index].battery.battery) { | |
2531 | devres_release_group(&wacom->hdev->dev, | |
2532 | &remote->remotes[index].battery.bat_desc); | |
2533 | remote->remotes[index].battery.battery = NULL; | |
2534 | remote->remotes[index].active_time = 0; | |
2535 | } | |
2536 | } | |
2537 | ||
04bfa27b BT |
2538 | static void wacom_remote_destroy_one(struct wacom *wacom, unsigned int index) |
2539 | { | |
2540 | struct wacom_remote *remote = wacom->remote; | |
e7749f6e | 2541 | u32 serial = remote->remotes[index].serial; |
04bfa27b | 2542 | int i; |
7c35dc3c BT |
2543 | unsigned long flags; |
2544 | ||
791ae273 AAS |
2545 | for (i = 0; i < WACOM_MAX_REMOTES; i++) { |
2546 | if (remote->remotes[i].serial == serial) { | |
04bfa27b | 2547 | |
791ae273 AAS |
2548 | spin_lock_irqsave(&remote->remote_lock, flags); |
2549 | remote->remotes[i].registered = false; | |
2550 | spin_unlock_irqrestore(&remote->remote_lock, flags); | |
9f1015d4 | 2551 | |
9ac6678b | 2552 | wacom_remote_destroy_battery(wacom, i); |
791ae273 AAS |
2553 | |
2554 | if (remote->remotes[i].group.name) | |
2555 | devres_release_group(&wacom->hdev->dev, | |
2556 | &remote->remotes[i]); | |
04bfa27b | 2557 | |
e7749f6e BT |
2558 | remote->remotes[i].serial = 0; |
2559 | remote->remotes[i].group.name = NULL; | |
04bfa27b BT |
2560 | wacom->led.groups[i].select = WACOM_STATUS_UNKNOWN; |
2561 | } | |
2562 | } | |
2563 | } | |
2564 | ||
2565 | static int wacom_remote_create_one(struct wacom *wacom, u32 serial, | |
2566 | unsigned int index) | |
2567 | { | |
2568 | struct wacom_remote *remote = wacom->remote; | |
f9036bd4 | 2569 | struct device *dev = &wacom->hdev->dev; |
04bfa27b BT |
2570 | int error, k; |
2571 | ||
2572 | /* A remote can pair more than once with an EKR, | |
2573 | * check to make sure this serial isn't already paired. | |
2574 | */ | |
2575 | for (k = 0; k < WACOM_MAX_REMOTES; k++) { | |
e7749f6e | 2576 | if (remote->remotes[k].serial == serial) |
04bfa27b BT |
2577 | break; |
2578 | } | |
2579 | ||
2580 | if (k < WACOM_MAX_REMOTES) { | |
e7749f6e | 2581 | remote->remotes[index].serial = serial; |
04bfa27b BT |
2582 | return 0; |
2583 | } | |
2584 | ||
e7749f6e | 2585 | if (!devres_open_group(dev, &remote->remotes[index], GFP_KERNEL)) |
f9036bd4 BT |
2586 | return -ENOMEM; |
2587 | ||
04bfa27b BT |
2588 | error = wacom_remote_create_attr_group(wacom, serial, index); |
2589 | if (error) | |
f9036bd4 | 2590 | goto fail; |
04bfa27b | 2591 | |
7c35dc3c BT |
2592 | remote->remotes[index].input = wacom_allocate_input(wacom); |
2593 | if (!remote->remotes[index].input) { | |
2594 | error = -ENOMEM; | |
2595 | goto fail; | |
2596 | } | |
2597 | remote->remotes[index].input->uniq = remote->remotes[index].group.name; | |
2598 | remote->remotes[index].input->name = wacom->wacom_wac.pad_name; | |
2599 | ||
2600 | if (!remote->remotes[index].input->name) { | |
2601 | error = -EINVAL; | |
2602 | goto fail; | |
2603 | } | |
2604 | ||
2605 | error = wacom_setup_pad_input_capabilities(remote->remotes[index].input, | |
2606 | &wacom->wacom_wac); | |
2607 | if (error) | |
2608 | goto fail; | |
2609 | ||
e7749f6e | 2610 | remote->remotes[index].serial = serial; |
04bfa27b | 2611 | |
7c35dc3c BT |
2612 | error = input_register_device(remote->remotes[index].input); |
2613 | if (error) | |
2614 | goto fail; | |
2615 | ||
97f5541f BT |
2616 | error = wacom_led_groups_alloc_and_register_one( |
2617 | &remote->remotes[index].input->dev, | |
2618 | wacom, index, 3, true); | |
2619 | if (error) | |
2620 | goto fail; | |
2621 | ||
7c35dc3c BT |
2622 | remote->remotes[index].registered = true; |
2623 | ||
e7749f6e | 2624 | devres_close_group(dev, &remote->remotes[index]); |
04bfa27b | 2625 | return 0; |
f9036bd4 BT |
2626 | |
2627 | fail: | |
e7749f6e BT |
2628 | devres_release_group(dev, &remote->remotes[index]); |
2629 | remote->remotes[index].serial = 0; | |
f9036bd4 | 2630 | return error; |
04bfa27b BT |
2631 | } |
2632 | ||
9f1015d4 BT |
2633 | static int wacom_remote_attach_battery(struct wacom *wacom, int index) |
2634 | { | |
2635 | struct wacom_remote *remote = wacom->remote; | |
2636 | int error; | |
2637 | ||
2638 | if (!remote->remotes[index].registered) | |
2639 | return 0; | |
2640 | ||
2641 | if (remote->remotes[index].battery.battery) | |
2642 | return 0; | |
2643 | ||
9ac6678b AAS |
2644 | if (!remote->remotes[index].active_time) |
2645 | return 0; | |
2646 | ||
9f1015d4 BT |
2647 | if (wacom->led.groups[index].select == WACOM_STATUS_UNKNOWN) |
2648 | return 0; | |
2649 | ||
2650 | error = __wacom_initialize_battery(wacom, | |
2651 | &wacom->remote->remotes[index].battery); | |
2652 | if (error) | |
2653 | return error; | |
2654 | ||
2655 | return 0; | |
2656 | } | |
2657 | ||
e6f2813a BT |
2658 | static void wacom_remote_work(struct work_struct *work) |
2659 | { | |
2660 | struct wacom *wacom = container_of(work, struct wacom, remote_work); | |
83e6b40e | 2661 | struct wacom_remote *remote = wacom->remote; |
9ac6678b | 2662 | ktime_t kt = ktime_get(); |
55ab9b2c | 2663 | struct wacom_remote_work_data remote_work_data; |
e6f2813a BT |
2664 | unsigned long flags; |
2665 | unsigned int count; | |
55ab9b2c | 2666 | u32 work_serial; |
04bfa27b | 2667 | int i; |
e6f2813a | 2668 | |
83e6b40e | 2669 | spin_lock_irqsave(&remote->remote_lock, flags); |
e6f2813a | 2670 | |
55ab9b2c AAS |
2671 | count = kfifo_out(&remote->remote_fifo, &remote_work_data, |
2672 | sizeof(remote_work_data)); | |
e6f2813a | 2673 | |
55ab9b2c | 2674 | if (count != sizeof(remote_work_data)) { |
e6f2813a BT |
2675 | hid_err(wacom->hdev, |
2676 | "workitem triggered without status available\n"); | |
83e6b40e | 2677 | spin_unlock_irqrestore(&remote->remote_lock, flags); |
e6f2813a BT |
2678 | return; |
2679 | } | |
2680 | ||
83e6b40e | 2681 | if (!kfifo_is_empty(&remote->remote_fifo)) |
e6f2813a BT |
2682 | wacom_schedule_work(&wacom->wacom_wac, WACOM_WORKER_REMOTE); |
2683 | ||
83e6b40e | 2684 | spin_unlock_irqrestore(&remote->remote_lock, flags); |
e6f2813a BT |
2685 | |
2686 | for (i = 0; i < WACOM_MAX_REMOTES; i++) { | |
55ab9b2c AAS |
2687 | work_serial = remote_work_data.remote[i].serial; |
2688 | if (work_serial) { | |
e6f2813a | 2689 | |
9ac6678b AAS |
2690 | if (kt - remote->remotes[i].active_time > WACOM_REMOTE_BATTERY_TIMEOUT |
2691 | && remote->remotes[i].active_time != 0) | |
2692 | wacom_remote_destroy_battery(wacom, i); | |
2693 | ||
55ab9b2c | 2694 | if (remote->remotes[i].serial == work_serial) { |
9f1015d4 | 2695 | wacom_remote_attach_battery(wacom, i); |
e6f2813a | 2696 | continue; |
9f1015d4 | 2697 | } |
e6f2813a | 2698 | |
e7749f6e | 2699 | if (remote->remotes[i].serial) |
04bfa27b | 2700 | wacom_remote_destroy_one(wacom, i); |
e6f2813a | 2701 | |
55ab9b2c | 2702 | wacom_remote_create_one(wacom, work_serial, i); |
e6f2813a | 2703 | |
e7749f6e | 2704 | } else if (remote->remotes[i].serial) { |
04bfa27b | 2705 | wacom_remote_destroy_one(wacom, i); |
e6f2813a BT |
2706 | } |
2707 | } | |
2708 | } | |
2709 | ||
4082da80 BT |
2710 | static void wacom_mode_change_work(struct work_struct *work) |
2711 | { | |
2712 | struct wacom *wacom = container_of(work, struct wacom, mode_change_work); | |
2713 | struct wacom_shared *shared = wacom->wacom_wac.shared; | |
2714 | struct wacom *wacom1 = NULL; | |
2715 | struct wacom *wacom2 = NULL; | |
2716 | bool is_direct = wacom->wacom_wac.is_direct_mode; | |
2717 | int error = 0; | |
2718 | ||
2719 | if (shared->pen) { | |
2720 | wacom1 = hid_get_drvdata(shared->pen); | |
2721 | wacom_release_resources(wacom1); | |
2722 | hid_hw_stop(wacom1->hdev); | |
2723 | wacom1->wacom_wac.has_mode_change = true; | |
2724 | wacom1->wacom_wac.is_direct_mode = is_direct; | |
2725 | } | |
2726 | ||
2727 | if (shared->touch) { | |
2728 | wacom2 = hid_get_drvdata(shared->touch); | |
2729 | wacom_release_resources(wacom2); | |
2730 | hid_hw_stop(wacom2->hdev); | |
2731 | wacom2->wacom_wac.has_mode_change = true; | |
2732 | wacom2->wacom_wac.is_direct_mode = is_direct; | |
2733 | } | |
2734 | ||
2735 | if (wacom1) { | |
2736 | error = wacom_parse_and_register(wacom1, false); | |
2737 | if (error) | |
2738 | return; | |
2739 | } | |
2740 | ||
2741 | if (wacom2) { | |
2742 | error = wacom_parse_and_register(wacom2, false); | |
2743 | if (error) | |
2744 | return; | |
2745 | } | |
2746 | ||
a2f091af BT |
2747 | return; |
2748 | } | |
2749 | ||
c58ac3a8 BT |
2750 | static int wacom_probe(struct hid_device *hdev, |
2751 | const struct hid_device_id *id) | |
2752 | { | |
c58ac3a8 BT |
2753 | struct wacom *wacom; |
2754 | struct wacom_wac *wacom_wac; | |
2755 | struct wacom_features *features; | |
2756 | int error; | |
2757 | ||
2758 | if (!id->driver_data) | |
2759 | return -EINVAL; | |
2760 | ||
2761 | hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; | |
2762 | ||
2763 | /* hid-core sets this quirk for the boot interface */ | |
2764 | hdev->quirks &= ~HID_QUIRK_NOGET; | |
2765 | ||
19b64330 | 2766 | wacom = devm_kzalloc(&hdev->dev, sizeof(struct wacom), GFP_KERNEL); |
c58ac3a8 BT |
2767 | if (!wacom) |
2768 | return -ENOMEM; | |
2769 | ||
2770 | hid_set_drvdata(hdev, wacom); | |
2771 | wacom->hdev = hdev; | |
2772 | ||
2773 | wacom_wac = &wacom->wacom_wac; | |
2774 | wacom_wac->features = *((struct wacom_features *)id->driver_data); | |
2775 | features = &wacom_wac->features; | |
2776 | ||
362c571b BT |
2777 | if (features->check_for_hid_type && features->hid_type != hdev->type) |
2778 | return -ENODEV; | |
c58ac3a8 | 2779 | |
37309f47 | 2780 | error = wacom_devm_kfifo_alloc(wacom); |
83417206 | 2781 | if (error) |
362c571b | 2782 | return error; |
83417206 | 2783 | |
c6fa1aeb | 2784 | wacom_wac->hid_data.inputmode = -1; |
326ea2a9 | 2785 | wacom_wac->mode_report = -1; |
c6fa1aeb | 2786 | |
720ac467 GKH |
2787 | if (hid_is_usb(hdev)) { |
2788 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); | |
2789 | struct usb_device *dev = interface_to_usbdev(intf); | |
2790 | ||
2791 | wacom->usbdev = dev; | |
2792 | wacom->intf = intf; | |
2793 | } | |
2794 | ||
c58ac3a8 | 2795 | mutex_init(&wacom->lock); |
a544c619 | 2796 | INIT_DELAYED_WORK(&wacom->init_work, wacom_init_work); |
d17d1f17 BT |
2797 | INIT_WORK(&wacom->wireless_work, wacom_wireless_work); |
2798 | INIT_WORK(&wacom->battery_work, wacom_battery_work); | |
e6f2813a | 2799 | INIT_WORK(&wacom->remote_work, wacom_remote_work); |
4082da80 | 2800 | INIT_WORK(&wacom->mode_change_work, wacom_mode_change_work); |
94b17905 | 2801 | timer_setup(&wacom->idleprox_timer, &wacom_idleprox_timeout, TIMER_DEFERRABLE); |
c58ac3a8 BT |
2802 | |
2803 | /* ask for the report descriptor to be loaded by HID */ | |
2804 | error = hid_parse(hdev); | |
2805 | if (error) { | |
2806 | hid_err(hdev, "parse failed\n"); | |
362c571b | 2807 | return error; |
c58ac3a8 BT |
2808 | } |
2809 | ||
1db1f392 JG |
2810 | if (features->type == BOOTLOADER) { |
2811 | hid_warn(hdev, "Using device in hidraw-only mode"); | |
2812 | return hid_hw_start(hdev, HID_CONNECT_HIDRAW); | |
2813 | } | |
2814 | ||
fd5f92b6 | 2815 | error = wacom_parse_and_register(wacom, false); |
c58ac3a8 | 2816 | if (error) |
362c571b | 2817 | return error; |
c58ac3a8 BT |
2818 | |
2819 | if (hdev->bus == BUS_BLUETOOTH) { | |
2820 | error = device_create_file(&hdev->dev, &dev_attr_speed); | |
2821 | if (error) | |
2822 | hid_warn(hdev, | |
2823 | "can't create sysfs speed attribute err: %d\n", | |
2824 | error); | |
2825 | } | |
2826 | ||
5bed0128 | 2827 | wacom_wac->probe_complete = true; |
c58ac3a8 | 2828 | return 0; |
3bea733a PC |
2829 | } |
2830 | ||
29b47391 | 2831 | static void wacom_remove(struct hid_device *hdev) |
3bea733a | 2832 | { |
29b47391 | 2833 | struct wacom *wacom = hid_get_drvdata(hdev); |
f6205161 BT |
2834 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; |
2835 | struct wacom_features *features = &wacom_wac->features; | |
2836 | ||
2837 | if (features->device_type & WACOM_DEVICETYPE_WL_MONITOR) | |
2838 | hid_hw_close(hdev); | |
3bea733a | 2839 | |
29b47391 | 2840 | hid_hw_stop(hdev); |
e7224094 | 2841 | |
a544c619 | 2842 | cancel_delayed_work_sync(&wacom->init_work); |
d17d1f17 BT |
2843 | cancel_work_sync(&wacom->wireless_work); |
2844 | cancel_work_sync(&wacom->battery_work); | |
e6f2813a | 2845 | cancel_work_sync(&wacom->remote_work); |
4082da80 | 2846 | cancel_work_sync(&wacom->mode_change_work); |
94b17905 | 2847 | del_timer_sync(&wacom->idleprox_timer); |
f81a1295 BT |
2848 | if (hdev->bus == BUS_BLUETOOTH) |
2849 | device_remove_file(&hdev->dev, &dev_attr_speed); | |
e7224094 | 2850 | |
c0265a94 BT |
2851 | /* make sure we don't trigger the LEDs */ |
2852 | wacom_led_groups_release(wacom); | |
b6b1f19b AAS |
2853 | |
2854 | if (wacom->wacom_wac.features.type != REMOTE) | |
2855 | wacom_release_resources(wacom); | |
e7224094 ON |
2856 | } |
2857 | ||
41a74581 | 2858 | #ifdef CONFIG_PM |
29b47391 | 2859 | static int wacom_resume(struct hid_device *hdev) |
e7224094 | 2860 | { |
29b47391 | 2861 | struct wacom *wacom = hid_get_drvdata(hdev); |
e7224094 ON |
2862 | |
2863 | mutex_lock(&wacom->lock); | |
38101475 PC |
2864 | |
2865 | /* switch to wacom mode first */ | |
a544c619 | 2866 | _wacom_query_tablet_data(wacom); |
5d7e7d47 | 2867 | wacom_led_control(wacom); |
38101475 | 2868 | |
e7224094 ON |
2869 | mutex_unlock(&wacom->lock); |
2870 | ||
29b47391 | 2871 | return 0; |
e7224094 ON |
2872 | } |
2873 | ||
29b47391 | 2874 | static int wacom_reset_resume(struct hid_device *hdev) |
e7224094 | 2875 | { |
29b47391 | 2876 | return wacom_resume(hdev); |
3bea733a | 2877 | } |
41a74581 | 2878 | #endif /* CONFIG_PM */ |
3bea733a | 2879 | |
29b47391 | 2880 | static struct hid_driver wacom_driver = { |
3bea733a | 2881 | .name = "wacom", |
b036f6fb | 2882 | .id_table = wacom_ids, |
3bea733a | 2883 | .probe = wacom_probe, |
29b47391 | 2884 | .remove = wacom_remove, |
7704ac93 | 2885 | .report = wacom_wac_report, |
29b47391 | 2886 | #ifdef CONFIG_PM |
e7224094 ON |
2887 | .resume = wacom_resume, |
2888 | .reset_resume = wacom_reset_resume, | |
29b47391 BT |
2889 | #endif |
2890 | .raw_event = wacom_raw_event, | |
3bea733a | 2891 | }; |
29b47391 | 2892 | module_hid_driver(wacom_driver); |
f2e0a7d4 BT |
2893 | |
2894 | MODULE_VERSION(DRIVER_VERSION); | |
2895 | MODULE_AUTHOR(DRIVER_AUTHOR); | |
2896 | MODULE_DESCRIPTION(DRIVER_DESC); | |
7021b600 | 2897 | MODULE_LICENSE("GPL"); |