Commit | Line | Data |
---|---|---|
3bea733a | 1 | /* |
4104d13f | 2 | * drivers/input/tablet/wacom_sys.c |
3bea733a | 3 | * |
232f5693 | 4 | * USB Wacom tablet support - system specific code |
3bea733a PC |
5 | */ |
6 | ||
7 | /* | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation; either version 2 of the License, or | |
11 | * (at your option) any later version. | |
12 | */ | |
13 | ||
3bea733a | 14 | #include "wacom_wac.h" |
51269fe8 | 15 | #include "wacom.h" |
f54bc61c | 16 | #include <linux/hid.h> |
3bea733a | 17 | |
f54bc61c BT |
18 | #define HID_HDESC_USAGE_UNDEFINED 0x00 |
19 | #define HID_HDESC_USAGE_PAGE 0x05 | |
20 | #define HID_HDESC_USAGE 0x09 | |
21 | #define HID_HDESC_COLLECTION 0xa1 | |
22 | #define HID_HDESC_COLLECTION_LOGICAL 0x02 | |
23 | #define HID_HDESC_COLLECTION_END 0xc0 | |
24 | ||
a417ea44 | 25 | #define WAC_MSG_RETRIES 5 |
3bea733a | 26 | |
5d7e7d47 EH |
27 | #define WAC_CMD_LED_CONTROL 0x20 |
28 | #define WAC_CMD_ICON_START 0x21 | |
29 | #define WAC_CMD_ICON_XFER 0x23 | |
30 | #define WAC_CMD_RETRIES 10 | |
31 | ||
27b20a9d | 32 | static int wacom_get_report(struct hid_device *hdev, u8 type, u8 id, |
5d7e7d47 | 33 | void *buf, size_t size, unsigned int retries) |
3bea733a | 34 | { |
5d7e7d47 EH |
35 | int retval; |
36 | ||
37 | do { | |
27b20a9d BT |
38 | retval = hid_hw_raw_request(hdev, id, buf, size, type, |
39 | HID_REQ_GET_REPORT); | |
5d7e7d47 EH |
40 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); |
41 | ||
42 | return retval; | |
3bea733a PC |
43 | } |
44 | ||
27b20a9d | 45 | static int wacom_set_report(struct hid_device *hdev, u8 type, u8 id, |
5d7e7d47 | 46 | void *buf, size_t size, unsigned int retries) |
3bea733a | 47 | { |
5d7e7d47 EH |
48 | int retval; |
49 | ||
50 | do { | |
27b20a9d BT |
51 | retval = hid_hw_raw_request(hdev, id, buf, size, type, |
52 | HID_REQ_SET_REPORT); | |
5d7e7d47 EH |
53 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); |
54 | ||
55 | return retval; | |
3bea733a PC |
56 | } |
57 | ||
29b47391 BT |
58 | static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report, |
59 | u8 *raw_data, int size) | |
3bea733a | 60 | { |
29b47391 | 61 | struct wacom *wacom = hid_get_drvdata(hdev); |
3bea733a | 62 | |
29b47391 BT |
63 | if (size > WACOM_PKGLEN_MAX) |
64 | return 1; | |
3bea733a | 65 | |
29b47391 | 66 | memcpy(wacom->wacom_wac.data, raw_data, size); |
3bea733a | 67 | |
29b47391 BT |
68 | wacom_wac_irq(&wacom->wacom_wac, size); |
69 | ||
70 | return 0; | |
3bea733a PC |
71 | } |
72 | ||
3bea733a PC |
73 | static int wacom_open(struct input_dev *dev) |
74 | { | |
7791bdae | 75 | struct wacom *wacom = input_get_drvdata(dev); |
29b47391 | 76 | int retval; |
f6cd3783 DT |
77 | |
78 | mutex_lock(&wacom->lock); | |
29b47391 | 79 | retval = hid_hw_open(wacom->hdev); |
e7224094 | 80 | mutex_unlock(&wacom->lock); |
29b47391 | 81 | |
f6cd3783 | 82 | return retval; |
3bea733a PC |
83 | } |
84 | ||
85 | static void wacom_close(struct input_dev *dev) | |
86 | { | |
7791bdae | 87 | struct wacom *wacom = input_get_drvdata(dev); |
3bea733a | 88 | |
e7224094 | 89 | mutex_lock(&wacom->lock); |
29b47391 | 90 | hid_hw_close(wacom->hdev); |
e7224094 | 91 | mutex_unlock(&wacom->lock); |
3bea733a PC |
92 | } |
93 | ||
115d5e12 JG |
94 | /* |
95 | * Calculate the resolution of the X or Y axis, given appropriate HID data. | |
96 | * This function is little more than hidinput_calc_abs_res stripped down. | |
97 | */ | |
98 | static int wacom_calc_hid_res(int logical_extents, int physical_extents, | |
99 | unsigned char unit, unsigned char exponent) | |
100 | { | |
101 | int prev, unit_exponent; | |
102 | ||
103 | /* Check if the extents are sane */ | |
104 | if (logical_extents <= 0 || physical_extents <= 0) | |
105 | return 0; | |
106 | ||
107 | /* Get signed value of nybble-sized twos-compliment exponent */ | |
108 | unit_exponent = exponent; | |
109 | if (unit_exponent > 7) | |
110 | unit_exponent -= 16; | |
111 | ||
112 | /* Convert physical_extents to millimeters */ | |
113 | if (unit == 0x11) { /* If centimeters */ | |
114 | unit_exponent += 1; | |
115 | } else if (unit == 0x13) { /* If inches */ | |
116 | prev = physical_extents; | |
117 | physical_extents *= 254; | |
118 | if (physical_extents < prev) | |
119 | return 0; | |
120 | unit_exponent -= 1; | |
121 | } else { | |
122 | return 0; | |
123 | } | |
124 | ||
125 | /* Apply negative unit exponent */ | |
126 | for (; unit_exponent < 0; unit_exponent++) { | |
127 | prev = logical_extents; | |
128 | logical_extents *= 10; | |
129 | if (logical_extents < prev) | |
130 | return 0; | |
131 | } | |
132 | /* Apply positive unit exponent */ | |
133 | for (; unit_exponent > 0; unit_exponent--) { | |
134 | prev = physical_extents; | |
135 | physical_extents *= 10; | |
136 | if (physical_extents < prev) | |
137 | return 0; | |
138 | } | |
139 | ||
140 | /* Calculate resolution */ | |
141 | return logical_extents / physical_extents; | |
142 | } | |
143 | ||
4134361a CB |
144 | static int wacom_parse_logical_collection(unsigned char *report, |
145 | struct wacom_features *features) | |
146 | { | |
147 | int length = 0; | |
148 | ||
149 | if (features->type == BAMBOO_PT) { | |
150 | ||
151 | /* Logical collection is only used by 3rd gen Bamboo Touch */ | |
152 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
8b4a0c1f | 153 | features->device_type = BTN_TOOL_FINGER; |
4134361a | 154 | |
4134361a CB |
155 | features->x_max = features->y_max = |
156 | get_unaligned_le16(&report[10]); | |
157 | ||
158 | length = 11; | |
159 | } | |
160 | return length; | |
161 | } | |
162 | ||
27b20a9d | 163 | static void wacom_retrieve_report_data(struct hid_device *hdev, |
f393ee2b PC |
164 | struct wacom_features *features) |
165 | { | |
166 | int result = 0; | |
167 | unsigned char *rep_data; | |
168 | ||
169 | rep_data = kmalloc(2, GFP_KERNEL); | |
170 | if (rep_data) { | |
171 | ||
172 | rep_data[0] = 12; | |
27b20a9d | 173 | result = wacom_get_report(hdev, HID_FEATURE_REPORT, |
61c91dd4 | 174 | rep_data[0], rep_data, 2, |
f393ee2b PC |
175 | WAC_MSG_RETRIES); |
176 | ||
177 | if (result >= 0 && rep_data[1] > 2) | |
178 | features->touch_max = rep_data[1]; | |
179 | ||
180 | kfree(rep_data); | |
181 | } | |
182 | } | |
183 | ||
428f8588 CB |
184 | /* |
185 | * Interface Descriptor of wacom devices can be incomplete and | |
186 | * inconsistent so wacom_features table is used to store stylus | |
187 | * device's packet lengths, various maximum values, and tablet | |
188 | * resolution based on product ID's. | |
189 | * | |
190 | * For devices that contain 2 interfaces, wacom_features table is | |
191 | * inaccurate for the touch interface. Since the Interface Descriptor | |
192 | * for touch interfaces has pretty complete data, this function exists | |
193 | * to query tablet for this missing information instead of hard coding in | |
194 | * an additional table. | |
195 | * | |
196 | * A typical Interface Descriptor for a stylus will contain a | |
197 | * boot mouse application collection that is not of interest and this | |
198 | * function will ignore it. | |
199 | * | |
200 | * It also contains a digitizer application collection that also is not | |
201 | * of interest since any information it contains would be duplicate | |
202 | * of what is in wacom_features. Usually it defines a report of an array | |
203 | * of bytes that could be used as max length of the stylus packet returned. | |
204 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
205 | * the X and Y logical values contain valid data but it is ignored. | |
206 | * | |
207 | * A typical Interface Descriptor for a touch interface will contain a | |
208 | * Digitizer-Finger Physical Collection which will define both logical | |
209 | * X/Y maximum as well as the physical size of tablet. Since touch | |
210 | * interfaces haven't supported pressure or distance, this is enough | |
211 | * information to override invalid values in the wacom_features table. | |
4134361a CB |
212 | * |
213 | * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical | |
214 | * Collection. Instead they define a Logical Collection with a single | |
215 | * Logical Maximum for both X and Y. | |
ae584ca4 JG |
216 | * |
217 | * Intuos5 touch interface does not contain useful data. We deal with | |
218 | * this after returning from this function. | |
428f8588 | 219 | */ |
27b20a9d | 220 | static int wacom_parse_hid(struct hid_device *hdev, |
ec67bbed | 221 | struct wacom_features *features) |
545f4e99 | 222 | { |
ec67bbed | 223 | /* result has to be defined as int for some devices */ |
1d0d6df0 | 224 | int result = 0, touch_max = 0; |
5866d9e3 | 225 | int i = 0, page = 0, finger = 0, pen = 0; |
ba9a3541 | 226 | unsigned char *report = hdev->rdesc; |
545f4e99 | 227 | |
ba9a3541 | 228 | for (i = 0; i < hdev->rsize; i++) { |
545f4e99 PC |
229 | |
230 | switch (report[i]) { | |
f54bc61c | 231 | case HID_HDESC_USAGE_PAGE: |
5866d9e3 JG |
232 | page = report[i + 1]; |
233 | i++; | |
545f4e99 PC |
234 | break; |
235 | ||
f54bc61c | 236 | case HID_HDESC_USAGE: |
5866d9e3 | 237 | switch (page << 16 | report[i + 1]) { |
f54bc61c | 238 | case HID_GD_X: |
5866d9e3 JG |
239 | if (finger) { |
240 | features->device_type = BTN_TOOL_FINGER; | |
241 | /* touch device at least supports one touch point */ | |
242 | touch_max = 1; | |
243 | switch (features->type) { | |
244 | case TABLETPC2FG: | |
245 | features->pktlen = WACOM_PKGLEN_TPC2FG; | |
246 | break; | |
247 | ||
248 | case MTSCREEN: | |
249 | case WACOM_24HDT: | |
250 | features->pktlen = WACOM_PKGLEN_MTOUCH; | |
251 | break; | |
252 | ||
253 | case MTTPC: | |
d51ddb2b | 254 | case MTTPC_B: |
5866d9e3 JG |
255 | features->pktlen = WACOM_PKGLEN_MTTPC; |
256 | break; | |
257 | ||
258 | case BAMBOO_PT: | |
259 | features->pktlen = WACOM_PKGLEN_BBTOUCH; | |
260 | break; | |
261 | ||
262 | default: | |
263 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; | |
264 | break; | |
265 | } | |
266 | ||
267 | switch (features->type) { | |
268 | case BAMBOO_PT: | |
269 | features->x_phy = | |
270 | get_unaligned_le16(&report[i + 5]); | |
271 | features->x_max = | |
272 | get_unaligned_le16(&report[i + 8]); | |
273 | i += 15; | |
274 | break; | |
275 | ||
276 | case WACOM_24HDT: | |
545f4e99 | 277 | features->x_max = |
252f7769 | 278 | get_unaligned_le16(&report[i + 3]); |
5866d9e3 JG |
279 | features->x_phy = |
280 | get_unaligned_le16(&report[i + 8]); | |
281 | features->unit = report[i - 1]; | |
282 | features->unitExpo = report[i - 3]; | |
283 | i += 12; | |
284 | break; | |
285 | ||
d51ddb2b JG |
286 | case MTTPC_B: |
287 | features->x_max = | |
288 | get_unaligned_le16(&report[i + 3]); | |
289 | features->x_phy = | |
290 | get_unaligned_le16(&report[i + 6]); | |
291 | features->unit = report[i - 5]; | |
292 | features->unitExpo = report[i - 3]; | |
293 | i += 9; | |
294 | break; | |
295 | ||
5866d9e3 JG |
296 | default: |
297 | features->x_max = | |
298 | get_unaligned_le16(&report[i + 3]); | |
299 | features->x_phy = | |
300 | get_unaligned_le16(&report[i + 6]); | |
301 | features->unit = report[i + 9]; | |
302 | features->unitExpo = report[i + 11]; | |
303 | i += 12; | |
304 | break; | |
545f4e99 | 305 | } |
5866d9e3 JG |
306 | } else if (pen) { |
307 | /* penabled only accepts exact bytes of data */ | |
308 | if (features->type >= TABLETPC) | |
309 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; | |
310 | features->device_type = BTN_TOOL_PEN; | |
311 | features->x_max = | |
312 | get_unaligned_le16(&report[i + 3]); | |
313 | i += 4; | |
545f4e99 PC |
314 | } |
315 | break; | |
316 | ||
f54bc61c | 317 | case HID_GD_Y: |
5866d9e3 JG |
318 | if (finger) { |
319 | switch (features->type) { | |
320 | case TABLETPC2FG: | |
321 | case MTSCREEN: | |
322 | case MTTPC: | |
323 | features->y_max = | |
324 | get_unaligned_le16(&report[i + 3]); | |
325 | features->y_phy = | |
326 | get_unaligned_le16(&report[i + 6]); | |
327 | i += 7; | |
328 | break; | |
329 | ||
330 | case WACOM_24HDT: | |
331 | features->y_max = | |
332 | get_unaligned_le16(&report[i + 3]); | |
333 | features->y_phy = | |
334 | get_unaligned_le16(&report[i - 2]); | |
335 | i += 7; | |
336 | break; | |
337 | ||
338 | case BAMBOO_PT: | |
339 | features->y_phy = | |
340 | get_unaligned_le16(&report[i + 3]); | |
341 | features->y_max = | |
342 | get_unaligned_le16(&report[i + 6]); | |
343 | i += 12; | |
344 | break; | |
345 | ||
d51ddb2b JG |
346 | case MTTPC_B: |
347 | features->y_max = | |
348 | get_unaligned_le16(&report[i + 3]); | |
349 | features->y_phy = | |
350 | get_unaligned_le16(&report[i + 6]); | |
351 | i += 9; | |
352 | break; | |
353 | ||
5866d9e3 | 354 | default: |
ec67bbed | 355 | features->y_max = |
5866d9e3 JG |
356 | features->x_max; |
357 | features->y_phy = | |
252f7769 | 358 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 359 | i += 4; |
5866d9e3 | 360 | break; |
ec67bbed | 361 | } |
5866d9e3 JG |
362 | } else if (pen) { |
363 | features->y_max = | |
364 | get_unaligned_le16(&report[i + 3]); | |
365 | i += 4; | |
ec67bbed | 366 | } |
545f4e99 PC |
367 | break; |
368 | ||
f54bc61c | 369 | case HID_DG_FINGER: |
545f4e99 PC |
370 | finger = 1; |
371 | i++; | |
372 | break; | |
373 | ||
428f8588 CB |
374 | /* |
375 | * Requiring Stylus Usage will ignore boot mouse | |
376 | * X/Y values and some cases of invalid Digitizer X/Y | |
377 | * values commonly reported. | |
378 | */ | |
f54bc61c | 379 | case HID_DG_STYLUS: |
545f4e99 PC |
380 | pen = 1; |
381 | i++; | |
382 | break; | |
f393ee2b | 383 | |
f54bc61c | 384 | case HID_DG_CONTACTMAX: |
1cecc5cc PC |
385 | /* leave touch_max as is if predefined */ |
386 | if (!features->touch_max) | |
27b20a9d | 387 | wacom_retrieve_report_data(hdev, features); |
f393ee2b PC |
388 | i++; |
389 | break; | |
e9fc413f | 390 | |
f54bc61c | 391 | case HID_DG_TIPPRESSURE: |
e9fc413f JG |
392 | if (pen) { |
393 | features->pressure_max = | |
394 | get_unaligned_le16(&report[i + 3]); | |
395 | i += 4; | |
396 | } | |
397 | break; | |
545f4e99 PC |
398 | } |
399 | break; | |
400 | ||
f54bc61c | 401 | case HID_HDESC_COLLECTION_END: |
ec67bbed | 402 | /* reset UsagePage and Finger */ |
5866d9e3 | 403 | finger = page = 0; |
545f4e99 | 404 | break; |
4134361a | 405 | |
f54bc61c | 406 | case HID_HDESC_COLLECTION: |
4134361a CB |
407 | i++; |
408 | switch (report[i]) { | |
f54bc61c | 409 | case HID_HDESC_COLLECTION_LOGICAL: |
4134361a CB |
410 | i += wacom_parse_logical_collection(&report[i], |
411 | features); | |
412 | break; | |
413 | } | |
414 | break; | |
545f4e99 PC |
415 | } |
416 | } | |
417 | ||
1d0d6df0 PC |
418 | if (!features->touch_max && touch_max) |
419 | features->touch_max = touch_max; | |
384318ec | 420 | result = 0; |
545f4e99 PC |
421 | return result; |
422 | } | |
423 | ||
27b20a9d BT |
424 | static int wacom_set_device_mode(struct hid_device *hdev, int report_id, |
425 | int length, int mode) | |
3b7307c2 DT |
426 | { |
427 | unsigned char *rep_data; | |
fe494bc2 | 428 | int error = -ENOMEM, limit = 0; |
3b7307c2 | 429 | |
fe494bc2 | 430 | rep_data = kzalloc(length, GFP_KERNEL); |
3b7307c2 | 431 | if (!rep_data) |
ec67bbed PC |
432 | return error; |
433 | ||
fe494bc2 | 434 | do { |
9937c026 CB |
435 | rep_data[0] = report_id; |
436 | rep_data[1] = mode; | |
437 | ||
27b20a9d | 438 | error = wacom_set_report(hdev, HID_FEATURE_REPORT, |
fe494bc2 | 439 | report_id, rep_data, length, 1); |
3cb83157 | 440 | if (error >= 0) |
27b20a9d | 441 | error = wacom_get_report(hdev, HID_FEATURE_REPORT, |
3cb83157 | 442 | report_id, rep_data, length, 1); |
fe494bc2 JG |
443 | } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES); |
444 | ||
445 | kfree(rep_data); | |
446 | ||
447 | return error < 0 ? error : 0; | |
448 | } | |
449 | ||
450 | /* | |
451 | * Switch the tablet into its most-capable mode. Wacom tablets are | |
452 | * typically configured to power-up in a mode which sends mouse-like | |
453 | * reports to the OS. To get absolute position, pressure data, etc. | |
454 | * from the tablet, it is necessary to switch the tablet out of this | |
455 | * mode and into one which sends the full range of tablet data. | |
456 | */ | |
27b20a9d BT |
457 | static int wacom_query_tablet_data(struct hid_device *hdev, |
458 | struct wacom_features *features) | |
fe494bc2 | 459 | { |
1963518b | 460 | if (features->device_type == BTN_TOOL_FINGER) { |
ea2e6024 | 461 | if (features->type > TABLETPC) { |
fe494bc2 | 462 | /* MT Tablet PC touch */ |
27b20a9d | 463 | return wacom_set_device_mode(hdev, 3, 4, 4); |
fe494bc2 | 464 | } |
36d3c510 | 465 | else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) { |
27b20a9d | 466 | return wacom_set_device_mode(hdev, 18, 3, 2); |
b1e4279e | 467 | } |
fe494bc2 JG |
468 | } else if (features->device_type == BTN_TOOL_PEN) { |
469 | if (features->type <= BAMBOO_PT && features->type != WIRELESS) { | |
27b20a9d | 470 | return wacom_set_device_mode(hdev, 2, 2, 2); |
1963518b | 471 | } |
ec67bbed | 472 | } |
3b7307c2 | 473 | |
fe494bc2 | 474 | return 0; |
3b7307c2 DT |
475 | } |
476 | ||
27b20a9d | 477 | static int wacom_retrieve_hid_descriptor(struct hid_device *hdev, |
1963518b | 478 | struct wacom_features *features) |
ec67bbed PC |
479 | { |
480 | int error = 0; | |
27b20a9d BT |
481 | struct wacom *wacom = hid_get_drvdata(hdev); |
482 | struct usb_interface *intf = wacom->intf; | |
ec67bbed | 483 | |
fed87e65 | 484 | /* default features */ |
ec67bbed | 485 | features->device_type = BTN_TOOL_PEN; |
fed87e65 HR |
486 | features->x_fuzz = 4; |
487 | features->y_fuzz = 4; | |
488 | features->pressure_fuzz = 0; | |
489 | features->distance_fuzz = 0; | |
ec67bbed | 490 | |
d3825d51 CB |
491 | /* |
492 | * The wireless device HID is basic and layout conflicts with | |
493 | * other tablets (monitor and touch interface can look like pen). | |
494 | * Skip the query for this type and modify defaults based on | |
495 | * interface number. | |
496 | */ | |
497 | if (features->type == WIRELESS) { | |
498 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { | |
499 | features->device_type = 0; | |
500 | } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { | |
adad004e | 501 | features->device_type = BTN_TOOL_FINGER; |
d3825d51 CB |
502 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; |
503 | } | |
504 | } | |
505 | ||
1963518b | 506 | /* only devices that support touch need to retrieve the info */ |
ea2e6024 | 507 | if (features->type < BAMBOO_PT) { |
ec67bbed | 508 | goto out; |
1963518b | 509 | } |
ec67bbed | 510 | |
ba9a3541 | 511 | error = wacom_parse_hid(hdev, features); |
ec67bbed | 512 | |
ec67bbed PC |
513 | out: |
514 | return error; | |
515 | } | |
516 | ||
4492efff PC |
517 | struct wacom_usbdev_data { |
518 | struct list_head list; | |
519 | struct kref kref; | |
520 | struct usb_device *dev; | |
521 | struct wacom_shared shared; | |
522 | }; | |
523 | ||
524 | static LIST_HEAD(wacom_udev_list); | |
525 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
526 | ||
aea2bf6a JG |
527 | static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product) |
528 | { | |
529 | int port1; | |
530 | struct usb_device *sibling; | |
531 | ||
532 | if (vendor == 0 && product == 0) | |
533 | return dev; | |
534 | ||
535 | if (dev->parent == NULL) | |
536 | return NULL; | |
537 | ||
538 | usb_hub_for_each_child(dev->parent, port1, sibling) { | |
539 | struct usb_device_descriptor *d; | |
540 | if (sibling == NULL) | |
541 | continue; | |
542 | ||
543 | d = &sibling->descriptor; | |
544 | if (d->idVendor == vendor && d->idProduct == product) | |
545 | return sibling; | |
546 | } | |
547 | ||
548 | return NULL; | |
549 | } | |
550 | ||
4492efff PC |
551 | static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) |
552 | { | |
553 | struct wacom_usbdev_data *data; | |
554 | ||
555 | list_for_each_entry(data, &wacom_udev_list, list) { | |
556 | if (data->dev == dev) { | |
557 | kref_get(&data->kref); | |
558 | return data; | |
559 | } | |
560 | } | |
561 | ||
562 | return NULL; | |
563 | } | |
564 | ||
565 | static int wacom_add_shared_data(struct wacom_wac *wacom, | |
566 | struct usb_device *dev) | |
567 | { | |
568 | struct wacom_usbdev_data *data; | |
569 | int retval = 0; | |
570 | ||
571 | mutex_lock(&wacom_udev_list_lock); | |
572 | ||
573 | data = wacom_get_usbdev_data(dev); | |
574 | if (!data) { | |
575 | data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); | |
576 | if (!data) { | |
577 | retval = -ENOMEM; | |
578 | goto out; | |
579 | } | |
580 | ||
581 | kref_init(&data->kref); | |
582 | data->dev = dev; | |
583 | list_add_tail(&data->list, &wacom_udev_list); | |
584 | } | |
585 | ||
586 | wacom->shared = &data->shared; | |
587 | ||
588 | out: | |
589 | mutex_unlock(&wacom_udev_list_lock); | |
590 | return retval; | |
591 | } | |
592 | ||
593 | static void wacom_release_shared_data(struct kref *kref) | |
594 | { | |
595 | struct wacom_usbdev_data *data = | |
596 | container_of(kref, struct wacom_usbdev_data, kref); | |
597 | ||
598 | mutex_lock(&wacom_udev_list_lock); | |
599 | list_del(&data->list); | |
600 | mutex_unlock(&wacom_udev_list_lock); | |
601 | ||
602 | kfree(data); | |
603 | } | |
604 | ||
605 | static void wacom_remove_shared_data(struct wacom_wac *wacom) | |
606 | { | |
607 | struct wacom_usbdev_data *data; | |
608 | ||
609 | if (wacom->shared) { | |
610 | data = container_of(wacom->shared, struct wacom_usbdev_data, shared); | |
611 | kref_put(&data->kref, wacom_release_shared_data); | |
612 | wacom->shared = NULL; | |
613 | } | |
614 | } | |
615 | ||
5d7e7d47 EH |
616 | static int wacom_led_control(struct wacom *wacom) |
617 | { | |
618 | unsigned char *buf; | |
9b5b95dd | 619 | int retval; |
5d7e7d47 EH |
620 | |
621 | buf = kzalloc(9, GFP_KERNEL); | |
622 | if (!buf) | |
623 | return -ENOMEM; | |
624 | ||
9b5b95dd | 625 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
9a35c411 | 626 | wacom->wacom_wac.features.type <= INTUOSPL) { |
9b5b95dd JG |
627 | /* |
628 | * Touch Ring and crop mark LED luminance may take on | |
629 | * one of four values: | |
630 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
631 | */ | |
632 | int ring_led = wacom->led.select[0] & 0x03; | |
633 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; | |
634 | int crop_lum = 0; | |
635 | ||
636 | buf[0] = WAC_CMD_LED_CONTROL; | |
637 | buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); | |
638 | } | |
639 | else { | |
640 | int led = wacom->led.select[0] | 0x4; | |
641 | ||
642 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
643 | wacom->wacom_wac.features.type == WACOM_24HD) | |
644 | led |= (wacom->led.select[1] << 4) | 0x40; | |
645 | ||
646 | buf[0] = WAC_CMD_LED_CONTROL; | |
647 | buf[1] = led; | |
648 | buf[2] = wacom->led.llv; | |
649 | buf[3] = wacom->led.hlv; | |
650 | buf[4] = wacom->led.img_lum; | |
651 | } | |
5d7e7d47 | 652 | |
27b20a9d BT |
653 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, |
654 | WAC_CMD_LED_CONTROL, buf, 9, WAC_CMD_RETRIES); | |
5d7e7d47 EH |
655 | kfree(buf); |
656 | ||
657 | return retval; | |
658 | } | |
659 | ||
660 | static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) | |
661 | { | |
662 | unsigned char *buf; | |
663 | int i, retval; | |
664 | ||
665 | buf = kzalloc(259, GFP_KERNEL); | |
666 | if (!buf) | |
667 | return -ENOMEM; | |
668 | ||
669 | /* Send 'start' command */ | |
670 | buf[0] = WAC_CMD_ICON_START; | |
671 | buf[1] = 1; | |
27b20a9d BT |
672 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, |
673 | WAC_CMD_ICON_START, buf, 2, WAC_CMD_RETRIES); | |
5d7e7d47 EH |
674 | if (retval < 0) |
675 | goto out; | |
676 | ||
677 | buf[0] = WAC_CMD_ICON_XFER; | |
678 | buf[1] = button_id & 0x07; | |
679 | for (i = 0; i < 4; i++) { | |
680 | buf[2] = i; | |
681 | memcpy(buf + 3, img + i * 256, 256); | |
682 | ||
27b20a9d BT |
683 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, |
684 | WAC_CMD_ICON_XFER, | |
5d7e7d47 EH |
685 | buf, 259, WAC_CMD_RETRIES); |
686 | if (retval < 0) | |
687 | break; | |
688 | } | |
689 | ||
690 | /* Send 'stop' */ | |
691 | buf[0] = WAC_CMD_ICON_START; | |
692 | buf[1] = 0; | |
27b20a9d | 693 | wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, WAC_CMD_ICON_START, |
5d7e7d47 EH |
694 | buf, 2, WAC_CMD_RETRIES); |
695 | ||
696 | out: | |
697 | kfree(buf); | |
698 | return retval; | |
699 | } | |
700 | ||
09e7d941 | 701 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
702 | const char *buf, size_t count) |
703 | { | |
29b47391 BT |
704 | struct hid_device *hdev = dev_get_drvdata(dev); |
705 | struct wacom *wacom = hid_get_drvdata(hdev); | |
5d7e7d47 EH |
706 | unsigned int id; |
707 | int err; | |
708 | ||
709 | err = kstrtouint(buf, 10, &id); | |
710 | if (err) | |
711 | return err; | |
712 | ||
713 | mutex_lock(&wacom->lock); | |
714 | ||
09e7d941 | 715 | wacom->led.select[set_id] = id & 0x3; |
5d7e7d47 EH |
716 | err = wacom_led_control(wacom); |
717 | ||
718 | mutex_unlock(&wacom->lock); | |
719 | ||
720 | return err < 0 ? err : count; | |
721 | } | |
722 | ||
09e7d941 PC |
723 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
724 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
725 | struct device_attribute *attr, const char *buf, size_t count) \ | |
726 | { \ | |
727 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
728 | } \ | |
04c59abd PC |
729 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
730 | struct device_attribute *attr, char *buf) \ | |
731 | { \ | |
29b47391 BT |
732 | struct hid_device *hdev = dev_get_drvdata(dev); \ |
733 | struct wacom *wacom = hid_get_drvdata(hdev); \ | |
04c59abd PC |
734 | return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ |
735 | } \ | |
736 | static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ | |
737 | wacom_led##SET_ID##_select_show, \ | |
09e7d941 PC |
738 | wacom_led##SET_ID##_select_store) |
739 | ||
740 | DEVICE_LED_SELECT_ATTR(0); | |
741 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
742 | |
743 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
744 | const char *buf, size_t count) | |
745 | { | |
746 | unsigned int value; | |
747 | int err; | |
748 | ||
749 | err = kstrtouint(buf, 10, &value); | |
750 | if (err) | |
751 | return err; | |
752 | ||
753 | mutex_lock(&wacom->lock); | |
754 | ||
755 | *dest = value & 0x7f; | |
756 | err = wacom_led_control(wacom); | |
757 | ||
758 | mutex_unlock(&wacom->lock); | |
759 | ||
760 | return err < 0 ? err : count; | |
761 | } | |
762 | ||
763 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
764 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
765 | struct device_attribute *attr, const char *buf, size_t count) \ | |
766 | { \ | |
29b47391 BT |
767 | struct hid_device *hdev = dev_get_drvdata(dev); \ |
768 | struct wacom *wacom = hid_get_drvdata(hdev); \ | |
5d7e7d47 EH |
769 | \ |
770 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
771 | buf, count); \ | |
772 | } \ | |
773 | static DEVICE_ATTR(name##_luminance, S_IWUSR, \ | |
774 | NULL, wacom_##name##_luminance_store) | |
775 | ||
776 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
777 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
778 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
779 | ||
780 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
781 | const char *buf, size_t count) | |
782 | { | |
29b47391 BT |
783 | struct hid_device *hdev = dev_get_drvdata(dev); |
784 | struct wacom *wacom = hid_get_drvdata(hdev); | |
5d7e7d47 EH |
785 | int err; |
786 | ||
787 | if (count != 1024) | |
788 | return -EINVAL; | |
789 | ||
790 | mutex_lock(&wacom->lock); | |
791 | ||
792 | err = wacom_led_putimage(wacom, button_id, buf); | |
793 | ||
794 | mutex_unlock(&wacom->lock); | |
795 | ||
796 | return err < 0 ? err : count; | |
797 | } | |
798 | ||
799 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
800 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
801 | struct device_attribute *attr, const char *buf, size_t count) \ | |
802 | { \ | |
803 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
804 | } \ | |
805 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ | |
806 | NULL, wacom_btnimg##BUTTON_ID##_store) | |
807 | ||
808 | DEVICE_BTNIMG_ATTR(0); | |
809 | DEVICE_BTNIMG_ATTR(1); | |
810 | DEVICE_BTNIMG_ATTR(2); | |
811 | DEVICE_BTNIMG_ATTR(3); | |
812 | DEVICE_BTNIMG_ATTR(4); | |
813 | DEVICE_BTNIMG_ATTR(5); | |
814 | DEVICE_BTNIMG_ATTR(6); | |
815 | DEVICE_BTNIMG_ATTR(7); | |
816 | ||
09e7d941 PC |
817 | static struct attribute *cintiq_led_attrs[] = { |
818 | &dev_attr_status_led0_select.attr, | |
819 | &dev_attr_status_led1_select.attr, | |
820 | NULL | |
821 | }; | |
822 | ||
823 | static struct attribute_group cintiq_led_attr_group = { | |
824 | .name = "wacom_led", | |
825 | .attrs = cintiq_led_attrs, | |
826 | }; | |
827 | ||
828 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
829 | &dev_attr_status0_luminance.attr, |
830 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 831 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
832 | &dev_attr_buttons_luminance.attr, |
833 | &dev_attr_button0_rawimg.attr, | |
834 | &dev_attr_button1_rawimg.attr, | |
835 | &dev_attr_button2_rawimg.attr, | |
836 | &dev_attr_button3_rawimg.attr, | |
837 | &dev_attr_button4_rawimg.attr, | |
838 | &dev_attr_button5_rawimg.attr, | |
839 | &dev_attr_button6_rawimg.attr, | |
840 | &dev_attr_button7_rawimg.attr, | |
841 | NULL | |
842 | }; | |
843 | ||
09e7d941 | 844 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 845 | .name = "wacom_led", |
09e7d941 | 846 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
847 | }; |
848 | ||
9b5b95dd JG |
849 | static struct attribute *intuos5_led_attrs[] = { |
850 | &dev_attr_status0_luminance.attr, | |
851 | &dev_attr_status_led0_select.attr, | |
852 | NULL | |
853 | }; | |
854 | ||
855 | static struct attribute_group intuos5_led_attr_group = { | |
856 | .name = "wacom_led", | |
857 | .attrs = intuos5_led_attrs, | |
858 | }; | |
859 | ||
5d7e7d47 EH |
860 | static int wacom_initialize_leds(struct wacom *wacom) |
861 | { | |
862 | int error; | |
863 | ||
09e7d941 PC |
864 | /* Initialize default values */ |
865 | switch (wacom->wacom_wac.features.type) { | |
a19fc986 | 866 | case INTUOS4S: |
09e7d941 PC |
867 | case INTUOS4: |
868 | case INTUOS4L: | |
869 | wacom->led.select[0] = 0; | |
870 | wacom->led.select[1] = 0; | |
f4fa9a6d | 871 | wacom->led.llv = 10; |
5d7e7d47 EH |
872 | wacom->led.hlv = 20; |
873 | wacom->led.img_lum = 10; | |
09e7d941 PC |
874 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
875 | &intuos4_led_attr_group); | |
876 | break; | |
877 | ||
246835fc | 878 | case WACOM_24HD: |
09e7d941 PC |
879 | case WACOM_21UX2: |
880 | wacom->led.select[0] = 0; | |
881 | wacom->led.select[1] = 0; | |
882 | wacom->led.llv = 0; | |
883 | wacom->led.hlv = 0; | |
884 | wacom->led.img_lum = 0; | |
5d7e7d47 EH |
885 | |
886 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
09e7d941 PC |
887 | &cintiq_led_attr_group); |
888 | break; | |
889 | ||
9b5b95dd JG |
890 | case INTUOS5S: |
891 | case INTUOS5: | |
892 | case INTUOS5L: | |
9a35c411 PC |
893 | case INTUOSPS: |
894 | case INTUOSPM: | |
895 | case INTUOSPL: | |
c2b0c273 PC |
896 | if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) { |
897 | wacom->led.select[0] = 0; | |
898 | wacom->led.select[1] = 0; | |
899 | wacom->led.llv = 32; | |
900 | wacom->led.hlv = 0; | |
901 | wacom->led.img_lum = 0; | |
902 | ||
903 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
904 | &intuos5_led_attr_group); | |
905 | } else | |
906 | return 0; | |
9b5b95dd JG |
907 | break; |
908 | ||
09e7d941 PC |
909 | default: |
910 | return 0; | |
5d7e7d47 EH |
911 | } |
912 | ||
09e7d941 PC |
913 | if (error) { |
914 | dev_err(&wacom->intf->dev, | |
915 | "cannot create sysfs group err: %d\n", error); | |
916 | return error; | |
917 | } | |
918 | wacom_led_control(wacom); | |
919 | ||
5d7e7d47 EH |
920 | return 0; |
921 | } | |
922 | ||
923 | static void wacom_destroy_leds(struct wacom *wacom) | |
924 | { | |
09e7d941 | 925 | switch (wacom->wacom_wac.features.type) { |
a19fc986 | 926 | case INTUOS4S: |
09e7d941 PC |
927 | case INTUOS4: |
928 | case INTUOS4L: | |
5d7e7d47 | 929 | sysfs_remove_group(&wacom->intf->dev.kobj, |
09e7d941 PC |
930 | &intuos4_led_attr_group); |
931 | break; | |
932 | ||
246835fc | 933 | case WACOM_24HD: |
09e7d941 PC |
934 | case WACOM_21UX2: |
935 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
936 | &cintiq_led_attr_group); | |
937 | break; | |
9b5b95dd JG |
938 | |
939 | case INTUOS5S: | |
940 | case INTUOS5: | |
941 | case INTUOS5L: | |
9a35c411 PC |
942 | case INTUOSPS: |
943 | case INTUOSPM: | |
944 | case INTUOSPL: | |
c2b0c273 PC |
945 | if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) |
946 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
947 | &intuos5_led_attr_group); | |
9b5b95dd | 948 | break; |
5d7e7d47 EH |
949 | } |
950 | } | |
951 | ||
a1d552cc | 952 | static enum power_supply_property wacom_battery_props[] = { |
6e2a6e80 | 953 | POWER_SUPPLY_PROP_SCOPE, |
a1d552cc CB |
954 | POWER_SUPPLY_PROP_CAPACITY |
955 | }; | |
956 | ||
957 | static int wacom_battery_get_property(struct power_supply *psy, | |
958 | enum power_supply_property psp, | |
959 | union power_supply_propval *val) | |
960 | { | |
961 | struct wacom *wacom = container_of(psy, struct wacom, battery); | |
962 | int ret = 0; | |
963 | ||
964 | switch (psp) { | |
6e2a6e80 BN |
965 | case POWER_SUPPLY_PROP_SCOPE: |
966 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
967 | break; | |
a1d552cc CB |
968 | case POWER_SUPPLY_PROP_CAPACITY: |
969 | val->intval = | |
970 | wacom->wacom_wac.battery_capacity * 100 / 31; | |
971 | break; | |
972 | default: | |
973 | ret = -EINVAL; | |
974 | break; | |
975 | } | |
976 | ||
977 | return ret; | |
978 | } | |
979 | ||
980 | static int wacom_initialize_battery(struct wacom *wacom) | |
981 | { | |
982 | int error = 0; | |
983 | ||
984 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { | |
985 | wacom->battery.properties = wacom_battery_props; | |
986 | wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); | |
987 | wacom->battery.get_property = wacom_battery_get_property; | |
988 | wacom->battery.name = "wacom_battery"; | |
989 | wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; | |
990 | wacom->battery.use_for_apm = 0; | |
991 | ||
992 | error = power_supply_register(&wacom->usbdev->dev, | |
993 | &wacom->battery); | |
b7af2bb8 CB |
994 | |
995 | if (!error) | |
996 | power_supply_powers(&wacom->battery, | |
997 | &wacom->usbdev->dev); | |
a1d552cc CB |
998 | } |
999 | ||
1000 | return error; | |
1001 | } | |
1002 | ||
1003 | static void wacom_destroy_battery(struct wacom *wacom) | |
1004 | { | |
b7af2bb8 CB |
1005 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR && |
1006 | wacom->battery.dev) { | |
a1d552cc | 1007 | power_supply_unregister(&wacom->battery); |
b7af2bb8 CB |
1008 | wacom->battery.dev = NULL; |
1009 | } | |
a1d552cc CB |
1010 | } |
1011 | ||
d2d13f18 | 1012 | static struct input_dev *wacom_allocate_input(struct wacom *wacom) |
3aac0ef1 CB |
1013 | { |
1014 | struct input_dev *input_dev; | |
1015 | struct usb_interface *intf = wacom->intf; | |
1016 | struct usb_device *dev = interface_to_usbdev(intf); | |
1017 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
3aac0ef1 CB |
1018 | |
1019 | input_dev = input_allocate_device(); | |
d2d13f18 BT |
1020 | if (!input_dev) |
1021 | return NULL; | |
3aac0ef1 CB |
1022 | |
1023 | input_dev->name = wacom_wac->name; | |
7097d4cb | 1024 | input_dev->phys = wacom->phys; |
3aac0ef1 CB |
1025 | input_dev->dev.parent = &intf->dev; |
1026 | input_dev->open = wacom_open; | |
1027 | input_dev->close = wacom_close; | |
1028 | usb_to_input_id(dev, &input_dev->id); | |
1029 | input_set_drvdata(input_dev, wacom); | |
1030 | ||
d2d13f18 BT |
1031 | return input_dev; |
1032 | } | |
1033 | ||
008f4d9e BT |
1034 | static void wacom_unregister_inputs(struct wacom *wacom) |
1035 | { | |
1036 | if (wacom->wacom_wac.input) | |
1037 | input_unregister_device(wacom->wacom_wac.input); | |
1038 | if (wacom->wacom_wac.pad_input) | |
1039 | input_unregister_device(wacom->wacom_wac.pad_input); | |
1040 | wacom->wacom_wac.input = NULL; | |
1041 | wacom->wacom_wac.pad_input = NULL; | |
1042 | } | |
1043 | ||
1044 | static int wacom_register_inputs(struct wacom *wacom) | |
d2d13f18 BT |
1045 | { |
1046 | struct input_dev *input_dev, *pad_input_dev; | |
1047 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
1048 | int error; | |
1049 | ||
1050 | input_dev = wacom_allocate_input(wacom); | |
1051 | pad_input_dev = wacom_allocate_input(wacom); | |
1052 | if (!input_dev || !pad_input_dev) { | |
1053 | error = -ENOMEM; | |
1054 | goto fail1; | |
1055 | } | |
1056 | ||
3aac0ef1 | 1057 | wacom_wac->input = input_dev; |
d2d13f18 BT |
1058 | wacom_wac->pad_input = pad_input_dev; |
1059 | wacom_wac->pad_input->name = wacom_wac->pad_name; | |
1060 | ||
1963518b PC |
1061 | error = wacom_setup_input_capabilities(input_dev, wacom_wac); |
1062 | if (error) | |
d2d13f18 | 1063 | goto fail2; |
3aac0ef1 CB |
1064 | |
1065 | error = input_register_device(input_dev); | |
1963518b PC |
1066 | if (error) |
1067 | goto fail2; | |
1068 | ||
d2d13f18 BT |
1069 | error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac); |
1070 | if (error) { | |
1071 | /* no pad in use on this interface */ | |
1072 | input_free_device(pad_input_dev); | |
1073 | wacom_wac->pad_input = NULL; | |
1074 | pad_input_dev = NULL; | |
1075 | } else { | |
1076 | error = input_register_device(pad_input_dev); | |
1077 | if (error) | |
1078 | goto fail3; | |
1079 | } | |
1080 | ||
1963518b | 1081 | return 0; |
3aac0ef1 | 1082 | |
d2d13f18 BT |
1083 | fail3: |
1084 | input_unregister_device(input_dev); | |
1085 | input_dev = NULL; | |
1963518b | 1086 | fail2: |
1963518b | 1087 | wacom_wac->input = NULL; |
d2d13f18 | 1088 | wacom_wac->pad_input = NULL; |
1963518b | 1089 | fail1: |
d2d13f18 BT |
1090 | if (input_dev) |
1091 | input_free_device(input_dev); | |
1092 | if (pad_input_dev) | |
1093 | input_free_device(pad_input_dev); | |
3aac0ef1 CB |
1094 | return error; |
1095 | } | |
1096 | ||
16bf288c CB |
1097 | static void wacom_wireless_work(struct work_struct *work) |
1098 | { | |
1099 | struct wacom *wacom = container_of(work, struct wacom, work); | |
1100 | struct usb_device *usbdev = wacom->usbdev; | |
1101 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
29b47391 | 1102 | struct hid_device *hdev1, *hdev2; |
b7af2bb8 CB |
1103 | struct wacom *wacom1, *wacom2; |
1104 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
1105 | int error; | |
16bf288c CB |
1106 | |
1107 | /* | |
1108 | * Regardless if this is a disconnect or a new tablet, | |
b7af2bb8 | 1109 | * remove any existing input and battery devices. |
16bf288c CB |
1110 | */ |
1111 | ||
b7af2bb8 CB |
1112 | wacom_destroy_battery(wacom); |
1113 | ||
16bf288c | 1114 | /* Stylus interface */ |
29b47391 BT |
1115 | hdev1 = usb_get_intfdata(usbdev->config->interface[1]); |
1116 | wacom1 = hid_get_drvdata(hdev1); | |
b7af2bb8 | 1117 | wacom_wac1 = &(wacom1->wacom_wac); |
008f4d9e | 1118 | wacom_unregister_inputs(wacom1); |
16bf288c CB |
1119 | |
1120 | /* Touch interface */ | |
29b47391 BT |
1121 | hdev2 = usb_get_intfdata(usbdev->config->interface[2]); |
1122 | wacom2 = hid_get_drvdata(hdev2); | |
b7af2bb8 | 1123 | wacom_wac2 = &(wacom2->wacom_wac); |
008f4d9e | 1124 | wacom_unregister_inputs(wacom2); |
16bf288c CB |
1125 | |
1126 | if (wacom_wac->pid == 0) { | |
eb71d1bb | 1127 | dev_info(&wacom->intf->dev, "wireless tablet disconnected\n"); |
16bf288c | 1128 | } else { |
29b47391 | 1129 | const struct hid_device_id *id = wacom_ids; |
16bf288c | 1130 | |
eb71d1bb DT |
1131 | dev_info(&wacom->intf->dev, |
1132 | "wireless tablet connected with PID %x\n", | |
1133 | wacom_wac->pid); | |
16bf288c | 1134 | |
29b47391 BT |
1135 | while (id->bus) { |
1136 | if (id->vendor == USB_VENDOR_ID_WACOM && | |
1137 | id->product == wacom_wac->pid) | |
16bf288c CB |
1138 | break; |
1139 | id++; | |
1140 | } | |
1141 | ||
29b47391 | 1142 | if (!id->bus) { |
eb71d1bb DT |
1143 | dev_info(&wacom->intf->dev, |
1144 | "ignoring unknown PID.\n"); | |
16bf288c CB |
1145 | return; |
1146 | } | |
1147 | ||
1148 | /* Stylus interface */ | |
b7af2bb8 | 1149 | wacom_wac1->features = |
29b47391 | 1150 | *((struct wacom_features *)id->driver_data); |
b7af2bb8 | 1151 | wacom_wac1->features.device_type = BTN_TOOL_PEN; |
57bcfce3 PC |
1152 | snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen", |
1153 | wacom_wac1->features.name); | |
008f4d9e BT |
1154 | snprintf(wacom_wac1->pad_name, WACOM_NAME_MAX, "%s (WL) Pad", |
1155 | wacom_wac1->features.name); | |
961794a0 PC |
1156 | wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max; |
1157 | wacom_wac1->shared->type = wacom_wac1->features.type; | |
008f4d9e | 1158 | error = wacom_register_inputs(wacom1); |
b7af2bb8 | 1159 | if (error) |
57bcfce3 | 1160 | goto fail; |
16bf288c CB |
1161 | |
1162 | /* Touch interface */ | |
b5fd2a3e PC |
1163 | if (wacom_wac1->features.touch_max || |
1164 | wacom_wac1->features.type == INTUOSHT) { | |
57bcfce3 | 1165 | wacom_wac2->features = |
29b47391 | 1166 | *((struct wacom_features *)id->driver_data); |
57bcfce3 PC |
1167 | wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3; |
1168 | wacom_wac2->features.device_type = BTN_TOOL_FINGER; | |
1169 | wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096; | |
1170 | if (wacom_wac2->features.touch_max) | |
1171 | snprintf(wacom_wac2->name, WACOM_NAME_MAX, | |
1172 | "%s (WL) Finger",wacom_wac2->features.name); | |
1173 | else | |
1174 | snprintf(wacom_wac2->name, WACOM_NAME_MAX, | |
1175 | "%s (WL) Pad",wacom_wac2->features.name); | |
008f4d9e BT |
1176 | snprintf(wacom_wac2->pad_name, WACOM_NAME_MAX, |
1177 | "%s (WL) Pad", wacom_wac2->features.name); | |
1178 | error = wacom_register_inputs(wacom2); | |
57bcfce3 PC |
1179 | if (error) |
1180 | goto fail; | |
961794a0 PC |
1181 | |
1182 | if (wacom_wac1->features.type == INTUOSHT && | |
1183 | wacom_wac1->features.touch_max) | |
1184 | wacom_wac->shared->touch_input = wacom_wac2->input; | |
57bcfce3 | 1185 | } |
b7af2bb8 CB |
1186 | |
1187 | error = wacom_initialize_battery(wacom); | |
1188 | if (error) | |
57bcfce3 | 1189 | goto fail; |
16bf288c | 1190 | } |
b7af2bb8 CB |
1191 | |
1192 | return; | |
1193 | ||
57bcfce3 | 1194 | fail: |
008f4d9e BT |
1195 | wacom_unregister_inputs(wacom1); |
1196 | wacom_unregister_inputs(wacom2); | |
b7af2bb8 | 1197 | return; |
16bf288c CB |
1198 | } |
1199 | ||
401d7d10 PC |
1200 | /* |
1201 | * Not all devices report physical dimensions from HID. | |
1202 | * Compute the default from hardcoded logical dimension | |
1203 | * and resolution before driver overwrites them. | |
1204 | */ | |
1205 | static void wacom_set_default_phy(struct wacom_features *features) | |
1206 | { | |
1207 | if (features->x_resolution) { | |
1208 | features->x_phy = (features->x_max * 100) / | |
1209 | features->x_resolution; | |
1210 | features->y_phy = (features->y_max * 100) / | |
1211 | features->y_resolution; | |
1212 | } | |
1213 | } | |
1214 | ||
1215 | static void wacom_calculate_res(struct wacom_features *features) | |
1216 | { | |
1217 | features->x_resolution = wacom_calc_hid_res(features->x_max, | |
1218 | features->x_phy, | |
1219 | features->unit, | |
1220 | features->unitExpo); | |
1221 | features->y_resolution = wacom_calc_hid_res(features->y_max, | |
1222 | features->y_phy, | |
1223 | features->unit, | |
1224 | features->unitExpo); | |
1225 | } | |
1226 | ||
29b47391 BT |
1227 | static int wacom_probe(struct hid_device *hdev, |
1228 | const struct hid_device_id *id) | |
3bea733a | 1229 | { |
29b47391 | 1230 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); |
3bea733a PC |
1231 | struct usb_device *dev = interface_to_usbdev(intf); |
1232 | struct usb_endpoint_descriptor *endpoint; | |
1233 | struct wacom *wacom; | |
1234 | struct wacom_wac *wacom_wac; | |
e33da8a5 | 1235 | struct wacom_features *features; |
e33da8a5 | 1236 | int error; |
3bea733a | 1237 | |
29b47391 | 1238 | if (!id->driver_data) |
b036f6fb BB |
1239 | return -EINVAL; |
1240 | ||
3bea733a | 1241 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
f1823940 DC |
1242 | if (!wacom) |
1243 | return -ENOMEM; | |
e33da8a5 | 1244 | |
29b47391 BT |
1245 | hid_set_drvdata(hdev, wacom); |
1246 | wacom->hdev = hdev; | |
1247 | ||
ba9a3541 BT |
1248 | /* ask for the report descriptor to be loaded by HID */ |
1249 | error = hid_parse(hdev); | |
1250 | if (error) { | |
1251 | hid_err(hdev, "parse failed\n"); | |
1252 | goto fail1; | |
1253 | } | |
1254 | ||
51269fe8 | 1255 | wacom_wac = &wacom->wacom_wac; |
29b47391 | 1256 | wacom_wac->features = *((struct wacom_features *)id->driver_data); |
e33da8a5 JC |
1257 | features = &wacom_wac->features; |
1258 | if (features->pktlen > WACOM_PKGLEN_MAX) { | |
1259 | error = -EINVAL; | |
3bea733a | 1260 | goto fail1; |
e33da8a5 | 1261 | } |
3bea733a | 1262 | |
29b47391 BT |
1263 | if (features->check_for_hid_type && features->hid_type != hdev->type) { |
1264 | error = -ENODEV; | |
3bea733a | 1265 | goto fail1; |
e33da8a5 | 1266 | } |
3bea733a | 1267 | |
3bea733a | 1268 | wacom->usbdev = dev; |
e7224094 ON |
1269 | wacom->intf = intf; |
1270 | mutex_init(&wacom->lock); | |
16bf288c | 1271 | INIT_WORK(&wacom->work, wacom_wireless_work); |
3bea733a PC |
1272 | usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); |
1273 | strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); | |
1274 | ||
545f4e99 PC |
1275 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
1276 | ||
401d7d10 PC |
1277 | /* set the default size in case we do not get them from hid */ |
1278 | wacom_set_default_phy(features); | |
1279 | ||
f393ee2b | 1280 | /* Retrieve the physical and logical size for touch devices */ |
27b20a9d | 1281 | error = wacom_retrieve_hid_descriptor(hdev, features); |
ec67bbed | 1282 | if (error) |
29b47391 | 1283 | goto fail1; |
545f4e99 | 1284 | |
ae584ca4 JG |
1285 | /* |
1286 | * Intuos5 has no useful data about its touch interface in its | |
1287 | * HID descriptor. If this is the touch interface (wMaxPacketSize | |
1288 | * of WACOM_PKGLEN_BBTOUCH3), override the table values. | |
1289 | */ | |
b5fd2a3e | 1290 | if (features->type >= INTUOS5S && features->type <= INTUOSHT) { |
ae584ca4 JG |
1291 | if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) { |
1292 | features->device_type = BTN_TOOL_FINGER; | |
1293 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1294 | ||
ae584ca4 JG |
1295 | features->x_max = 4096; |
1296 | features->y_max = 4096; | |
1297 | } else { | |
1298 | features->device_type = BTN_TOOL_PEN; | |
1299 | } | |
1300 | } | |
1301 | ||
bc73dd39 HR |
1302 | wacom_setup_device_quirks(features); |
1303 | ||
401d7d10 PC |
1304 | /* set unit to "100th of a mm" for devices not reported by HID */ |
1305 | if (!features->unit) { | |
1306 | features->unit = 0x11; | |
1307 | features->unitExpo = 16 - 3; | |
1308 | } | |
1309 | wacom_calculate_res(features); | |
1310 | ||
49b764ae | 1311 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
d2d13f18 BT |
1312 | snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name), |
1313 | "%s Pad", features->name); | |
49b764ae | 1314 | |
bc73dd39 | 1315 | if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { |
aea2bf6a JG |
1316 | struct usb_device *other_dev; |
1317 | ||
49b764ae | 1318 | /* Append the device type to the name */ |
57bcfce3 PC |
1319 | if (features->device_type != BTN_TOOL_FINGER) |
1320 | strlcat(wacom_wac->name, " Pen", WACOM_NAME_MAX); | |
1321 | else if (features->touch_max) | |
1322 | strlcat(wacom_wac->name, " Finger", WACOM_NAME_MAX); | |
1323 | else | |
1324 | strlcat(wacom_wac->name, " Pad", WACOM_NAME_MAX); | |
4492efff | 1325 | |
aea2bf6a JG |
1326 | other_dev = wacom_get_sibling(dev, features->oVid, features->oPid); |
1327 | if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL) | |
1328 | other_dev = dev; | |
1329 | error = wacom_add_shared_data(wacom_wac, other_dev); | |
4492efff | 1330 | if (error) |
29b47391 | 1331 | goto fail1; |
49b764ae PC |
1332 | } |
1333 | ||
5d7e7d47 | 1334 | error = wacom_initialize_leds(wacom); |
5014186d | 1335 | if (error) |
29b47391 | 1336 | goto fail2; |
3bea733a | 1337 | |
d3825d51 | 1338 | if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { |
008f4d9e | 1339 | error = wacom_register_inputs(wacom); |
d3825d51 | 1340 | if (error) |
29b47391 | 1341 | goto fail3; |
d3825d51 | 1342 | } |
5d7e7d47 | 1343 | |
ec67bbed | 1344 | /* Note that if query fails it is not a hard failure */ |
27b20a9d | 1345 | wacom_query_tablet_data(hdev, features); |
3bea733a | 1346 | |
29b47391 | 1347 | /* Regular HID work starts now */ |
29b47391 BT |
1348 | error = hid_hw_start(hdev, HID_CONNECT_HIDRAW); |
1349 | if (error) { | |
1350 | hid_err(hdev, "hw start failed\n"); | |
1351 | goto fail4; | |
d3825d51 | 1352 | } |
961794a0 | 1353 | |
29b47391 BT |
1354 | if (features->quirks & WACOM_QUIRK_MONITOR) |
1355 | error = hid_hw_open(hdev); | |
1356 | ||
961794a0 PC |
1357 | if (wacom_wac->features.type == INTUOSHT && wacom_wac->features.touch_max) { |
1358 | if (wacom_wac->features.device_type == BTN_TOOL_FINGER) | |
1359 | wacom_wac->shared->touch_input = wacom_wac->input; | |
1360 | } | |
1361 | ||
3bea733a PC |
1362 | return 0; |
1363 | ||
29b47391 BT |
1364 | fail4: wacom_unregister_inputs(wacom); |
1365 | fail3: wacom_destroy_leds(wacom); | |
1366 | fail2: wacom_remove_shared_data(wacom_wac); | |
3aac0ef1 | 1367 | fail1: kfree(wacom); |
29b47391 | 1368 | hid_set_drvdata(hdev, NULL); |
5014186d | 1369 | return error; |
3bea733a PC |
1370 | } |
1371 | ||
29b47391 | 1372 | static void wacom_remove(struct hid_device *hdev) |
3bea733a | 1373 | { |
29b47391 | 1374 | struct wacom *wacom = hid_get_drvdata(hdev); |
3bea733a | 1375 | |
29b47391 | 1376 | hid_hw_stop(hdev); |
e7224094 | 1377 | |
16bf288c | 1378 | cancel_work_sync(&wacom->work); |
008f4d9e | 1379 | wacom_unregister_inputs(wacom); |
a1d552cc | 1380 | wacom_destroy_battery(wacom); |
5d7e7d47 | 1381 | wacom_destroy_leds(wacom); |
51269fe8 | 1382 | wacom_remove_shared_data(&wacom->wacom_wac); |
e7224094 | 1383 | |
29b47391 BT |
1384 | hid_set_drvdata(hdev, NULL); |
1385 | kfree(wacom); | |
e7224094 ON |
1386 | } |
1387 | ||
29b47391 | 1388 | static int wacom_resume(struct hid_device *hdev) |
e7224094 | 1389 | { |
29b47391 | 1390 | struct wacom *wacom = hid_get_drvdata(hdev); |
51269fe8 | 1391 | struct wacom_features *features = &wacom->wacom_wac.features; |
e7224094 ON |
1392 | |
1393 | mutex_lock(&wacom->lock); | |
38101475 PC |
1394 | |
1395 | /* switch to wacom mode first */ | |
27b20a9d | 1396 | wacom_query_tablet_data(hdev, features); |
5d7e7d47 | 1397 | wacom_led_control(wacom); |
38101475 | 1398 | |
e7224094 ON |
1399 | mutex_unlock(&wacom->lock); |
1400 | ||
29b47391 | 1401 | return 0; |
e7224094 ON |
1402 | } |
1403 | ||
29b47391 | 1404 | static int wacom_reset_resume(struct hid_device *hdev) |
e7224094 | 1405 | { |
29b47391 | 1406 | return wacom_resume(hdev); |
3bea733a PC |
1407 | } |
1408 | ||
29b47391 | 1409 | static struct hid_driver wacom_driver = { |
3bea733a | 1410 | .name = "wacom", |
b036f6fb | 1411 | .id_table = wacom_ids, |
3bea733a | 1412 | .probe = wacom_probe, |
29b47391 BT |
1413 | .remove = wacom_remove, |
1414 | #ifdef CONFIG_PM | |
e7224094 ON |
1415 | .resume = wacom_resume, |
1416 | .reset_resume = wacom_reset_resume, | |
29b47391 BT |
1417 | #endif |
1418 | .raw_event = wacom_raw_event, | |
3bea733a | 1419 | }; |
29b47391 | 1420 | module_hid_driver(wacom_driver); |