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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 */ | |
8b4a0c1f | 152 | features->device_type = BTN_TOOL_FINGER; |
4134361a | 153 | |
4134361a CB |
154 | features->x_max = features->y_max = |
155 | get_unaligned_le16(&report[10]); | |
156 | ||
157 | length = 11; | |
158 | } | |
159 | return length; | |
160 | } | |
161 | ||
27b20a9d | 162 | static void wacom_retrieve_report_data(struct hid_device *hdev, |
f393ee2b PC |
163 | struct wacom_features *features) |
164 | { | |
165 | int result = 0; | |
166 | unsigned char *rep_data; | |
167 | ||
168 | rep_data = kmalloc(2, GFP_KERNEL); | |
169 | if (rep_data) { | |
170 | ||
171 | rep_data[0] = 12; | |
27b20a9d | 172 | result = wacom_get_report(hdev, HID_FEATURE_REPORT, |
61c91dd4 | 173 | rep_data[0], rep_data, 2, |
f393ee2b PC |
174 | WAC_MSG_RETRIES); |
175 | ||
176 | if (result >= 0 && rep_data[1] > 2) | |
177 | features->touch_max = rep_data[1]; | |
178 | ||
179 | kfree(rep_data); | |
180 | } | |
181 | } | |
182 | ||
428f8588 CB |
183 | /* |
184 | * Interface Descriptor of wacom devices can be incomplete and | |
185 | * inconsistent so wacom_features table is used to store stylus | |
186 | * device's packet lengths, various maximum values, and tablet | |
187 | * resolution based on product ID's. | |
188 | * | |
189 | * For devices that contain 2 interfaces, wacom_features table is | |
190 | * inaccurate for the touch interface. Since the Interface Descriptor | |
191 | * for touch interfaces has pretty complete data, this function exists | |
192 | * to query tablet for this missing information instead of hard coding in | |
193 | * an additional table. | |
194 | * | |
195 | * A typical Interface Descriptor for a stylus will contain a | |
196 | * boot mouse application collection that is not of interest and this | |
197 | * function will ignore it. | |
198 | * | |
199 | * It also contains a digitizer application collection that also is not | |
200 | * of interest since any information it contains would be duplicate | |
201 | * of what is in wacom_features. Usually it defines a report of an array | |
202 | * of bytes that could be used as max length of the stylus packet returned. | |
203 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
204 | * the X and Y logical values contain valid data but it is ignored. | |
205 | * | |
206 | * A typical Interface Descriptor for a touch interface will contain a | |
207 | * Digitizer-Finger Physical Collection which will define both logical | |
208 | * X/Y maximum as well as the physical size of tablet. Since touch | |
209 | * interfaces haven't supported pressure or distance, this is enough | |
210 | * information to override invalid values in the wacom_features table. | |
4134361a CB |
211 | * |
212 | * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical | |
213 | * Collection. Instead they define a Logical Collection with a single | |
214 | * Logical Maximum for both X and Y. | |
ae584ca4 JG |
215 | * |
216 | * Intuos5 touch interface does not contain useful data. We deal with | |
217 | * this after returning from this function. | |
428f8588 | 218 | */ |
27b20a9d | 219 | static int wacom_parse_hid(struct hid_device *hdev, |
ec67bbed | 220 | struct wacom_features *features) |
545f4e99 | 221 | { |
ec67bbed | 222 | /* result has to be defined as int for some devices */ |
1d0d6df0 | 223 | int result = 0, touch_max = 0; |
5866d9e3 | 224 | int i = 0, page = 0, finger = 0, pen = 0; |
ba9a3541 | 225 | unsigned char *report = hdev->rdesc; |
545f4e99 | 226 | |
ba9a3541 | 227 | for (i = 0; i < hdev->rsize; i++) { |
545f4e99 PC |
228 | |
229 | switch (report[i]) { | |
f54bc61c | 230 | case HID_HDESC_USAGE_PAGE: |
5866d9e3 JG |
231 | page = report[i + 1]; |
232 | i++; | |
545f4e99 PC |
233 | break; |
234 | ||
f54bc61c | 235 | case HID_HDESC_USAGE: |
5866d9e3 | 236 | switch (page << 16 | report[i + 1]) { |
f54bc61c | 237 | case HID_GD_X: |
5866d9e3 JG |
238 | if (finger) { |
239 | features->device_type = BTN_TOOL_FINGER; | |
240 | /* touch device at least supports one touch point */ | |
241 | touch_max = 1; | |
5866d9e3 JG |
242 | |
243 | switch (features->type) { | |
244 | case BAMBOO_PT: | |
245 | features->x_phy = | |
246 | get_unaligned_le16(&report[i + 5]); | |
247 | features->x_max = | |
248 | get_unaligned_le16(&report[i + 8]); | |
249 | i += 15; | |
250 | break; | |
251 | ||
252 | case WACOM_24HDT: | |
545f4e99 | 253 | features->x_max = |
252f7769 | 254 | get_unaligned_le16(&report[i + 3]); |
5866d9e3 JG |
255 | features->x_phy = |
256 | get_unaligned_le16(&report[i + 8]); | |
257 | features->unit = report[i - 1]; | |
258 | features->unitExpo = report[i - 3]; | |
259 | i += 12; | |
260 | break; | |
261 | ||
d51ddb2b JG |
262 | case MTTPC_B: |
263 | features->x_max = | |
264 | get_unaligned_le16(&report[i + 3]); | |
265 | features->x_phy = | |
266 | get_unaligned_le16(&report[i + 6]); | |
267 | features->unit = report[i - 5]; | |
268 | features->unitExpo = report[i - 3]; | |
269 | i += 9; | |
270 | break; | |
271 | ||
5866d9e3 JG |
272 | default: |
273 | features->x_max = | |
274 | get_unaligned_le16(&report[i + 3]); | |
275 | features->x_phy = | |
276 | get_unaligned_le16(&report[i + 6]); | |
277 | features->unit = report[i + 9]; | |
278 | features->unitExpo = report[i + 11]; | |
279 | i += 12; | |
280 | break; | |
545f4e99 | 281 | } |
5866d9e3 JG |
282 | } else if (pen) { |
283 | /* penabled only accepts exact bytes of data */ | |
5866d9e3 JG |
284 | features->device_type = BTN_TOOL_PEN; |
285 | features->x_max = | |
286 | get_unaligned_le16(&report[i + 3]); | |
287 | i += 4; | |
545f4e99 PC |
288 | } |
289 | break; | |
290 | ||
f54bc61c | 291 | case HID_GD_Y: |
5866d9e3 JG |
292 | if (finger) { |
293 | switch (features->type) { | |
294 | case TABLETPC2FG: | |
295 | case MTSCREEN: | |
296 | case MTTPC: | |
297 | features->y_max = | |
298 | get_unaligned_le16(&report[i + 3]); | |
299 | features->y_phy = | |
300 | get_unaligned_le16(&report[i + 6]); | |
301 | i += 7; | |
302 | break; | |
303 | ||
304 | case WACOM_24HDT: | |
305 | features->y_max = | |
306 | get_unaligned_le16(&report[i + 3]); | |
307 | features->y_phy = | |
308 | get_unaligned_le16(&report[i - 2]); | |
309 | i += 7; | |
310 | break; | |
311 | ||
312 | case BAMBOO_PT: | |
313 | features->y_phy = | |
314 | get_unaligned_le16(&report[i + 3]); | |
315 | features->y_max = | |
316 | get_unaligned_le16(&report[i + 6]); | |
317 | i += 12; | |
318 | break; | |
319 | ||
d51ddb2b JG |
320 | case MTTPC_B: |
321 | features->y_max = | |
322 | get_unaligned_le16(&report[i + 3]); | |
323 | features->y_phy = | |
324 | get_unaligned_le16(&report[i + 6]); | |
325 | i += 9; | |
326 | break; | |
327 | ||
5866d9e3 | 328 | default: |
ec67bbed | 329 | features->y_max = |
5866d9e3 JG |
330 | features->x_max; |
331 | features->y_phy = | |
252f7769 | 332 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 333 | i += 4; |
5866d9e3 | 334 | break; |
ec67bbed | 335 | } |
5866d9e3 JG |
336 | } else if (pen) { |
337 | features->y_max = | |
338 | get_unaligned_le16(&report[i + 3]); | |
339 | i += 4; | |
ec67bbed | 340 | } |
545f4e99 PC |
341 | break; |
342 | ||
f54bc61c | 343 | case HID_DG_FINGER: |
545f4e99 PC |
344 | finger = 1; |
345 | i++; | |
346 | break; | |
347 | ||
428f8588 CB |
348 | /* |
349 | * Requiring Stylus Usage will ignore boot mouse | |
350 | * X/Y values and some cases of invalid Digitizer X/Y | |
351 | * values commonly reported. | |
352 | */ | |
f54bc61c | 353 | case HID_DG_STYLUS: |
545f4e99 PC |
354 | pen = 1; |
355 | i++; | |
356 | break; | |
f393ee2b | 357 | |
f54bc61c | 358 | case HID_DG_CONTACTMAX: |
1cecc5cc PC |
359 | /* leave touch_max as is if predefined */ |
360 | if (!features->touch_max) | |
27b20a9d | 361 | wacom_retrieve_report_data(hdev, features); |
f393ee2b PC |
362 | i++; |
363 | break; | |
e9fc413f | 364 | |
f54bc61c | 365 | case HID_DG_TIPPRESSURE: |
e9fc413f JG |
366 | if (pen) { |
367 | features->pressure_max = | |
368 | get_unaligned_le16(&report[i + 3]); | |
369 | i += 4; | |
370 | } | |
371 | break; | |
545f4e99 PC |
372 | } |
373 | break; | |
374 | ||
f54bc61c | 375 | case HID_HDESC_COLLECTION_END: |
ec67bbed | 376 | /* reset UsagePage and Finger */ |
5866d9e3 | 377 | finger = page = 0; |
545f4e99 | 378 | break; |
4134361a | 379 | |
f54bc61c | 380 | case HID_HDESC_COLLECTION: |
4134361a CB |
381 | i++; |
382 | switch (report[i]) { | |
f54bc61c | 383 | case HID_HDESC_COLLECTION_LOGICAL: |
4134361a CB |
384 | i += wacom_parse_logical_collection(&report[i], |
385 | features); | |
386 | break; | |
387 | } | |
388 | break; | |
545f4e99 PC |
389 | } |
390 | } | |
391 | ||
1d0d6df0 PC |
392 | if (!features->touch_max && touch_max) |
393 | features->touch_max = touch_max; | |
384318ec | 394 | result = 0; |
545f4e99 PC |
395 | return result; |
396 | } | |
397 | ||
27b20a9d BT |
398 | static int wacom_set_device_mode(struct hid_device *hdev, int report_id, |
399 | int length, int mode) | |
3b7307c2 DT |
400 | { |
401 | unsigned char *rep_data; | |
fe494bc2 | 402 | int error = -ENOMEM, limit = 0; |
3b7307c2 | 403 | |
fe494bc2 | 404 | rep_data = kzalloc(length, GFP_KERNEL); |
3b7307c2 | 405 | if (!rep_data) |
ec67bbed PC |
406 | return error; |
407 | ||
fe494bc2 | 408 | do { |
9937c026 CB |
409 | rep_data[0] = report_id; |
410 | rep_data[1] = mode; | |
411 | ||
27b20a9d | 412 | error = wacom_set_report(hdev, HID_FEATURE_REPORT, |
fe494bc2 | 413 | report_id, rep_data, length, 1); |
3cb83157 | 414 | if (error >= 0) |
27b20a9d | 415 | error = wacom_get_report(hdev, HID_FEATURE_REPORT, |
3cb83157 | 416 | report_id, rep_data, length, 1); |
fe494bc2 JG |
417 | } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES); |
418 | ||
419 | kfree(rep_data); | |
420 | ||
421 | return error < 0 ? error : 0; | |
422 | } | |
423 | ||
424 | /* | |
425 | * Switch the tablet into its most-capable mode. Wacom tablets are | |
426 | * typically configured to power-up in a mode which sends mouse-like | |
427 | * reports to the OS. To get absolute position, pressure data, etc. | |
428 | * from the tablet, it is necessary to switch the tablet out of this | |
429 | * mode and into one which sends the full range of tablet data. | |
430 | */ | |
27b20a9d BT |
431 | static int wacom_query_tablet_data(struct hid_device *hdev, |
432 | struct wacom_features *features) | |
fe494bc2 | 433 | { |
1963518b | 434 | if (features->device_type == BTN_TOOL_FINGER) { |
ea2e6024 | 435 | if (features->type > TABLETPC) { |
fe494bc2 | 436 | /* MT Tablet PC touch */ |
27b20a9d | 437 | return wacom_set_device_mode(hdev, 3, 4, 4); |
fe494bc2 | 438 | } |
36d3c510 | 439 | else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) { |
27b20a9d | 440 | return wacom_set_device_mode(hdev, 18, 3, 2); |
b1e4279e | 441 | } |
fe494bc2 JG |
442 | } else if (features->device_type == BTN_TOOL_PEN) { |
443 | if (features->type <= BAMBOO_PT && features->type != WIRELESS) { | |
27b20a9d | 444 | return wacom_set_device_mode(hdev, 2, 2, 2); |
1963518b | 445 | } |
ec67bbed | 446 | } |
3b7307c2 | 447 | |
fe494bc2 | 448 | return 0; |
3b7307c2 DT |
449 | } |
450 | ||
27b20a9d | 451 | static int wacom_retrieve_hid_descriptor(struct hid_device *hdev, |
1963518b | 452 | struct wacom_features *features) |
ec67bbed PC |
453 | { |
454 | int error = 0; | |
27b20a9d BT |
455 | struct wacom *wacom = hid_get_drvdata(hdev); |
456 | struct usb_interface *intf = wacom->intf; | |
ec67bbed | 457 | |
fed87e65 | 458 | /* default features */ |
ec67bbed | 459 | features->device_type = BTN_TOOL_PEN; |
fed87e65 HR |
460 | features->x_fuzz = 4; |
461 | features->y_fuzz = 4; | |
462 | features->pressure_fuzz = 0; | |
463 | features->distance_fuzz = 0; | |
ec67bbed | 464 | |
d3825d51 CB |
465 | /* |
466 | * The wireless device HID is basic and layout conflicts with | |
467 | * other tablets (monitor and touch interface can look like pen). | |
468 | * Skip the query for this type and modify defaults based on | |
469 | * interface number. | |
470 | */ | |
471 | if (features->type == WIRELESS) { | |
472 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { | |
473 | features->device_type = 0; | |
474 | } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { | |
adad004e | 475 | features->device_type = BTN_TOOL_FINGER; |
d3825d51 CB |
476 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; |
477 | } | |
478 | } | |
479 | ||
1963518b | 480 | /* only devices that support touch need to retrieve the info */ |
ea2e6024 | 481 | if (features->type < BAMBOO_PT) { |
ec67bbed | 482 | goto out; |
1963518b | 483 | } |
ec67bbed | 484 | |
ba9a3541 | 485 | error = wacom_parse_hid(hdev, features); |
ec67bbed | 486 | |
ec67bbed PC |
487 | out: |
488 | return error; | |
489 | } | |
490 | ||
4492efff PC |
491 | struct wacom_usbdev_data { |
492 | struct list_head list; | |
493 | struct kref kref; | |
494 | struct usb_device *dev; | |
495 | struct wacom_shared shared; | |
496 | }; | |
497 | ||
498 | static LIST_HEAD(wacom_udev_list); | |
499 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
500 | ||
aea2bf6a JG |
501 | static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product) |
502 | { | |
503 | int port1; | |
504 | struct usb_device *sibling; | |
505 | ||
506 | if (vendor == 0 && product == 0) | |
507 | return dev; | |
508 | ||
509 | if (dev->parent == NULL) | |
510 | return NULL; | |
511 | ||
512 | usb_hub_for_each_child(dev->parent, port1, sibling) { | |
513 | struct usb_device_descriptor *d; | |
514 | if (sibling == NULL) | |
515 | continue; | |
516 | ||
517 | d = &sibling->descriptor; | |
518 | if (d->idVendor == vendor && d->idProduct == product) | |
519 | return sibling; | |
520 | } | |
521 | ||
522 | return NULL; | |
523 | } | |
524 | ||
4492efff PC |
525 | static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) |
526 | { | |
527 | struct wacom_usbdev_data *data; | |
528 | ||
529 | list_for_each_entry(data, &wacom_udev_list, list) { | |
530 | if (data->dev == dev) { | |
531 | kref_get(&data->kref); | |
532 | return data; | |
533 | } | |
534 | } | |
535 | ||
536 | return NULL; | |
537 | } | |
538 | ||
539 | static int wacom_add_shared_data(struct wacom_wac *wacom, | |
540 | struct usb_device *dev) | |
541 | { | |
542 | struct wacom_usbdev_data *data; | |
543 | int retval = 0; | |
544 | ||
545 | mutex_lock(&wacom_udev_list_lock); | |
546 | ||
547 | data = wacom_get_usbdev_data(dev); | |
548 | if (!data) { | |
549 | data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); | |
550 | if (!data) { | |
551 | retval = -ENOMEM; | |
552 | goto out; | |
553 | } | |
554 | ||
555 | kref_init(&data->kref); | |
556 | data->dev = dev; | |
557 | list_add_tail(&data->list, &wacom_udev_list); | |
558 | } | |
559 | ||
560 | wacom->shared = &data->shared; | |
561 | ||
562 | out: | |
563 | mutex_unlock(&wacom_udev_list_lock); | |
564 | return retval; | |
565 | } | |
566 | ||
567 | static void wacom_release_shared_data(struct kref *kref) | |
568 | { | |
569 | struct wacom_usbdev_data *data = | |
570 | container_of(kref, struct wacom_usbdev_data, kref); | |
571 | ||
572 | mutex_lock(&wacom_udev_list_lock); | |
573 | list_del(&data->list); | |
574 | mutex_unlock(&wacom_udev_list_lock); | |
575 | ||
576 | kfree(data); | |
577 | } | |
578 | ||
579 | static void wacom_remove_shared_data(struct wacom_wac *wacom) | |
580 | { | |
581 | struct wacom_usbdev_data *data; | |
582 | ||
583 | if (wacom->shared) { | |
584 | data = container_of(wacom->shared, struct wacom_usbdev_data, shared); | |
585 | kref_put(&data->kref, wacom_release_shared_data); | |
586 | wacom->shared = NULL; | |
587 | } | |
588 | } | |
589 | ||
5d7e7d47 EH |
590 | static int wacom_led_control(struct wacom *wacom) |
591 | { | |
592 | unsigned char *buf; | |
9b5b95dd | 593 | int retval; |
5d7e7d47 EH |
594 | |
595 | buf = kzalloc(9, GFP_KERNEL); | |
596 | if (!buf) | |
597 | return -ENOMEM; | |
598 | ||
9b5b95dd | 599 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
9a35c411 | 600 | wacom->wacom_wac.features.type <= INTUOSPL) { |
9b5b95dd JG |
601 | /* |
602 | * Touch Ring and crop mark LED luminance may take on | |
603 | * one of four values: | |
604 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
605 | */ | |
606 | int ring_led = wacom->led.select[0] & 0x03; | |
607 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; | |
608 | int crop_lum = 0; | |
609 | ||
610 | buf[0] = WAC_CMD_LED_CONTROL; | |
611 | buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); | |
612 | } | |
613 | else { | |
614 | int led = wacom->led.select[0] | 0x4; | |
615 | ||
616 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
617 | wacom->wacom_wac.features.type == WACOM_24HD) | |
618 | led |= (wacom->led.select[1] << 4) | 0x40; | |
619 | ||
620 | buf[0] = WAC_CMD_LED_CONTROL; | |
621 | buf[1] = led; | |
622 | buf[2] = wacom->led.llv; | |
623 | buf[3] = wacom->led.hlv; | |
624 | buf[4] = wacom->led.img_lum; | |
625 | } | |
5d7e7d47 | 626 | |
27b20a9d BT |
627 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, |
628 | WAC_CMD_LED_CONTROL, buf, 9, WAC_CMD_RETRIES); | |
5d7e7d47 EH |
629 | kfree(buf); |
630 | ||
631 | return retval; | |
632 | } | |
633 | ||
634 | static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) | |
635 | { | |
636 | unsigned char *buf; | |
637 | int i, retval; | |
638 | ||
639 | buf = kzalloc(259, GFP_KERNEL); | |
640 | if (!buf) | |
641 | return -ENOMEM; | |
642 | ||
643 | /* Send 'start' command */ | |
644 | buf[0] = WAC_CMD_ICON_START; | |
645 | buf[1] = 1; | |
27b20a9d BT |
646 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, |
647 | WAC_CMD_ICON_START, buf, 2, WAC_CMD_RETRIES); | |
5d7e7d47 EH |
648 | if (retval < 0) |
649 | goto out; | |
650 | ||
651 | buf[0] = WAC_CMD_ICON_XFER; | |
652 | buf[1] = button_id & 0x07; | |
653 | for (i = 0; i < 4; i++) { | |
654 | buf[2] = i; | |
655 | memcpy(buf + 3, img + i * 256, 256); | |
656 | ||
27b20a9d BT |
657 | retval = wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, |
658 | WAC_CMD_ICON_XFER, | |
5d7e7d47 EH |
659 | buf, 259, WAC_CMD_RETRIES); |
660 | if (retval < 0) | |
661 | break; | |
662 | } | |
663 | ||
664 | /* Send 'stop' */ | |
665 | buf[0] = WAC_CMD_ICON_START; | |
666 | buf[1] = 0; | |
27b20a9d | 667 | wacom_set_report(wacom->hdev, HID_FEATURE_REPORT, WAC_CMD_ICON_START, |
5d7e7d47 EH |
668 | buf, 2, WAC_CMD_RETRIES); |
669 | ||
670 | out: | |
671 | kfree(buf); | |
672 | return retval; | |
673 | } | |
674 | ||
09e7d941 | 675 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
676 | const char *buf, size_t count) |
677 | { | |
c31a408f | 678 | struct hid_device *hdev = container_of(dev, struct hid_device, dev); |
29b47391 | 679 | struct wacom *wacom = hid_get_drvdata(hdev); |
5d7e7d47 EH |
680 | unsigned int id; |
681 | int err; | |
682 | ||
683 | err = kstrtouint(buf, 10, &id); | |
684 | if (err) | |
685 | return err; | |
686 | ||
687 | mutex_lock(&wacom->lock); | |
688 | ||
09e7d941 | 689 | wacom->led.select[set_id] = id & 0x3; |
5d7e7d47 EH |
690 | err = wacom_led_control(wacom); |
691 | ||
692 | mutex_unlock(&wacom->lock); | |
693 | ||
694 | return err < 0 ? err : count; | |
695 | } | |
696 | ||
09e7d941 PC |
697 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
698 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
699 | struct device_attribute *attr, const char *buf, size_t count) \ | |
700 | { \ | |
701 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
702 | } \ | |
04c59abd PC |
703 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
704 | struct device_attribute *attr, char *buf) \ | |
705 | { \ | |
c31a408f | 706 | struct hid_device *hdev = container_of(dev, struct hid_device, dev);\ |
29b47391 | 707 | struct wacom *wacom = hid_get_drvdata(hdev); \ |
04c59abd PC |
708 | return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ |
709 | } \ | |
710 | static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ | |
711 | wacom_led##SET_ID##_select_show, \ | |
09e7d941 PC |
712 | wacom_led##SET_ID##_select_store) |
713 | ||
714 | DEVICE_LED_SELECT_ATTR(0); | |
715 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
716 | |
717 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
718 | const char *buf, size_t count) | |
719 | { | |
720 | unsigned int value; | |
721 | int err; | |
722 | ||
723 | err = kstrtouint(buf, 10, &value); | |
724 | if (err) | |
725 | return err; | |
726 | ||
727 | mutex_lock(&wacom->lock); | |
728 | ||
729 | *dest = value & 0x7f; | |
730 | err = wacom_led_control(wacom); | |
731 | ||
732 | mutex_unlock(&wacom->lock); | |
733 | ||
734 | return err < 0 ? err : count; | |
735 | } | |
736 | ||
737 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
738 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
739 | struct device_attribute *attr, const char *buf, size_t count) \ | |
740 | { \ | |
c31a408f | 741 | struct hid_device *hdev = container_of(dev, struct hid_device, dev);\ |
29b47391 | 742 | struct wacom *wacom = hid_get_drvdata(hdev); \ |
5d7e7d47 EH |
743 | \ |
744 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
745 | buf, count); \ | |
746 | } \ | |
747 | static DEVICE_ATTR(name##_luminance, S_IWUSR, \ | |
748 | NULL, wacom_##name##_luminance_store) | |
749 | ||
750 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
751 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
752 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
753 | ||
754 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
755 | const char *buf, size_t count) | |
756 | { | |
c31a408f | 757 | struct hid_device *hdev = container_of(dev, struct hid_device, dev); |
29b47391 | 758 | struct wacom *wacom = hid_get_drvdata(hdev); |
5d7e7d47 EH |
759 | int err; |
760 | ||
761 | if (count != 1024) | |
762 | return -EINVAL; | |
763 | ||
764 | mutex_lock(&wacom->lock); | |
765 | ||
766 | err = wacom_led_putimage(wacom, button_id, buf); | |
767 | ||
768 | mutex_unlock(&wacom->lock); | |
769 | ||
770 | return err < 0 ? err : count; | |
771 | } | |
772 | ||
773 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
774 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
775 | struct device_attribute *attr, const char *buf, size_t count) \ | |
776 | { \ | |
777 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
778 | } \ | |
779 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ | |
780 | NULL, wacom_btnimg##BUTTON_ID##_store) | |
781 | ||
782 | DEVICE_BTNIMG_ATTR(0); | |
783 | DEVICE_BTNIMG_ATTR(1); | |
784 | DEVICE_BTNIMG_ATTR(2); | |
785 | DEVICE_BTNIMG_ATTR(3); | |
786 | DEVICE_BTNIMG_ATTR(4); | |
787 | DEVICE_BTNIMG_ATTR(5); | |
788 | DEVICE_BTNIMG_ATTR(6); | |
789 | DEVICE_BTNIMG_ATTR(7); | |
790 | ||
09e7d941 PC |
791 | static struct attribute *cintiq_led_attrs[] = { |
792 | &dev_attr_status_led0_select.attr, | |
793 | &dev_attr_status_led1_select.attr, | |
794 | NULL | |
795 | }; | |
796 | ||
797 | static struct attribute_group cintiq_led_attr_group = { | |
798 | .name = "wacom_led", | |
799 | .attrs = cintiq_led_attrs, | |
800 | }; | |
801 | ||
802 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
803 | &dev_attr_status0_luminance.attr, |
804 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 805 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
806 | &dev_attr_buttons_luminance.attr, |
807 | &dev_attr_button0_rawimg.attr, | |
808 | &dev_attr_button1_rawimg.attr, | |
809 | &dev_attr_button2_rawimg.attr, | |
810 | &dev_attr_button3_rawimg.attr, | |
811 | &dev_attr_button4_rawimg.attr, | |
812 | &dev_attr_button5_rawimg.attr, | |
813 | &dev_attr_button6_rawimg.attr, | |
814 | &dev_attr_button7_rawimg.attr, | |
815 | NULL | |
816 | }; | |
817 | ||
09e7d941 | 818 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 819 | .name = "wacom_led", |
09e7d941 | 820 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
821 | }; |
822 | ||
9b5b95dd JG |
823 | static struct attribute *intuos5_led_attrs[] = { |
824 | &dev_attr_status0_luminance.attr, | |
825 | &dev_attr_status_led0_select.attr, | |
826 | NULL | |
827 | }; | |
828 | ||
829 | static struct attribute_group intuos5_led_attr_group = { | |
830 | .name = "wacom_led", | |
831 | .attrs = intuos5_led_attrs, | |
832 | }; | |
833 | ||
5d7e7d47 EH |
834 | static int wacom_initialize_leds(struct wacom *wacom) |
835 | { | |
836 | int error; | |
837 | ||
09e7d941 PC |
838 | /* Initialize default values */ |
839 | switch (wacom->wacom_wac.features.type) { | |
a19fc986 | 840 | case INTUOS4S: |
09e7d941 PC |
841 | case INTUOS4: |
842 | case INTUOS4L: | |
843 | wacom->led.select[0] = 0; | |
844 | wacom->led.select[1] = 0; | |
f4fa9a6d | 845 | wacom->led.llv = 10; |
5d7e7d47 EH |
846 | wacom->led.hlv = 20; |
847 | wacom->led.img_lum = 10; | |
c31a408f | 848 | error = sysfs_create_group(&wacom->hdev->dev.kobj, |
09e7d941 PC |
849 | &intuos4_led_attr_group); |
850 | break; | |
851 | ||
246835fc | 852 | case WACOM_24HD: |
09e7d941 PC |
853 | case WACOM_21UX2: |
854 | wacom->led.select[0] = 0; | |
855 | wacom->led.select[1] = 0; | |
856 | wacom->led.llv = 0; | |
857 | wacom->led.hlv = 0; | |
858 | wacom->led.img_lum = 0; | |
5d7e7d47 | 859 | |
c31a408f | 860 | error = sysfs_create_group(&wacom->hdev->dev.kobj, |
09e7d941 PC |
861 | &cintiq_led_attr_group); |
862 | break; | |
863 | ||
9b5b95dd JG |
864 | case INTUOS5S: |
865 | case INTUOS5: | |
866 | case INTUOS5L: | |
9a35c411 PC |
867 | case INTUOSPS: |
868 | case INTUOSPM: | |
869 | case INTUOSPL: | |
c2b0c273 PC |
870 | if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) { |
871 | wacom->led.select[0] = 0; | |
872 | wacom->led.select[1] = 0; | |
873 | wacom->led.llv = 32; | |
874 | wacom->led.hlv = 0; | |
875 | wacom->led.img_lum = 0; | |
876 | ||
c31a408f | 877 | error = sysfs_create_group(&wacom->hdev->dev.kobj, |
c2b0c273 PC |
878 | &intuos5_led_attr_group); |
879 | } else | |
880 | return 0; | |
9b5b95dd JG |
881 | break; |
882 | ||
09e7d941 PC |
883 | default: |
884 | return 0; | |
5d7e7d47 EH |
885 | } |
886 | ||
09e7d941 | 887 | if (error) { |
c31a408f | 888 | hid_err(wacom->hdev, |
09e7d941 PC |
889 | "cannot create sysfs group err: %d\n", error); |
890 | return error; | |
891 | } | |
892 | wacom_led_control(wacom); | |
893 | ||
5d7e7d47 EH |
894 | return 0; |
895 | } | |
896 | ||
897 | static void wacom_destroy_leds(struct wacom *wacom) | |
898 | { | |
09e7d941 | 899 | switch (wacom->wacom_wac.features.type) { |
a19fc986 | 900 | case INTUOS4S: |
09e7d941 PC |
901 | case INTUOS4: |
902 | case INTUOS4L: | |
c31a408f | 903 | sysfs_remove_group(&wacom->hdev->dev.kobj, |
09e7d941 PC |
904 | &intuos4_led_attr_group); |
905 | break; | |
906 | ||
246835fc | 907 | case WACOM_24HD: |
09e7d941 | 908 | case WACOM_21UX2: |
c31a408f | 909 | sysfs_remove_group(&wacom->hdev->dev.kobj, |
09e7d941 PC |
910 | &cintiq_led_attr_group); |
911 | break; | |
9b5b95dd JG |
912 | |
913 | case INTUOS5S: | |
914 | case INTUOS5: | |
915 | case INTUOS5L: | |
9a35c411 PC |
916 | case INTUOSPS: |
917 | case INTUOSPM: | |
918 | case INTUOSPL: | |
c2b0c273 | 919 | if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) |
c31a408f | 920 | sysfs_remove_group(&wacom->hdev->dev.kobj, |
c2b0c273 | 921 | &intuos5_led_attr_group); |
9b5b95dd | 922 | break; |
5d7e7d47 EH |
923 | } |
924 | } | |
925 | ||
a1d552cc | 926 | static enum power_supply_property wacom_battery_props[] = { |
6e2a6e80 | 927 | POWER_SUPPLY_PROP_SCOPE, |
a1d552cc CB |
928 | POWER_SUPPLY_PROP_CAPACITY |
929 | }; | |
930 | ||
931 | static int wacom_battery_get_property(struct power_supply *psy, | |
932 | enum power_supply_property psp, | |
933 | union power_supply_propval *val) | |
934 | { | |
935 | struct wacom *wacom = container_of(psy, struct wacom, battery); | |
936 | int ret = 0; | |
937 | ||
938 | switch (psp) { | |
6e2a6e80 BN |
939 | case POWER_SUPPLY_PROP_SCOPE: |
940 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
941 | break; | |
a1d552cc CB |
942 | case POWER_SUPPLY_PROP_CAPACITY: |
943 | val->intval = | |
944 | wacom->wacom_wac.battery_capacity * 100 / 31; | |
945 | break; | |
946 | default: | |
947 | ret = -EINVAL; | |
948 | break; | |
949 | } | |
950 | ||
951 | return ret; | |
952 | } | |
953 | ||
954 | static int wacom_initialize_battery(struct wacom *wacom) | |
955 | { | |
956 | int error = 0; | |
957 | ||
958 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { | |
959 | wacom->battery.properties = wacom_battery_props; | |
960 | wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); | |
961 | wacom->battery.get_property = wacom_battery_get_property; | |
962 | wacom->battery.name = "wacom_battery"; | |
963 | wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; | |
964 | wacom->battery.use_for_apm = 0; | |
965 | ||
966 | error = power_supply_register(&wacom->usbdev->dev, | |
967 | &wacom->battery); | |
b7af2bb8 CB |
968 | |
969 | if (!error) | |
970 | power_supply_powers(&wacom->battery, | |
971 | &wacom->usbdev->dev); | |
a1d552cc CB |
972 | } |
973 | ||
974 | return error; | |
975 | } | |
976 | ||
977 | static void wacom_destroy_battery(struct wacom *wacom) | |
978 | { | |
b7af2bb8 CB |
979 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR && |
980 | wacom->battery.dev) { | |
a1d552cc | 981 | power_supply_unregister(&wacom->battery); |
b7af2bb8 CB |
982 | wacom->battery.dev = NULL; |
983 | } | |
a1d552cc CB |
984 | } |
985 | ||
d2d13f18 | 986 | static struct input_dev *wacom_allocate_input(struct wacom *wacom) |
3aac0ef1 CB |
987 | { |
988 | struct input_dev *input_dev; | |
b6c79f2c | 989 | struct hid_device *hdev = wacom->hdev; |
3aac0ef1 | 990 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); |
3aac0ef1 CB |
991 | |
992 | input_dev = input_allocate_device(); | |
d2d13f18 BT |
993 | if (!input_dev) |
994 | return NULL; | |
3aac0ef1 CB |
995 | |
996 | input_dev->name = wacom_wac->name; | |
b6c79f2c BT |
997 | input_dev->phys = hdev->phys; |
998 | input_dev->dev.parent = &hdev->dev; | |
3aac0ef1 CB |
999 | input_dev->open = wacom_open; |
1000 | input_dev->close = wacom_close; | |
b6c79f2c BT |
1001 | input_dev->uniq = hdev->uniq; |
1002 | input_dev->id.bustype = hdev->bus; | |
1003 | input_dev->id.vendor = hdev->vendor; | |
1004 | input_dev->id.product = hdev->product; | |
1005 | input_dev->id.version = hdev->version; | |
3aac0ef1 CB |
1006 | input_set_drvdata(input_dev, wacom); |
1007 | ||
d2d13f18 BT |
1008 | return input_dev; |
1009 | } | |
1010 | ||
008f4d9e BT |
1011 | static void wacom_unregister_inputs(struct wacom *wacom) |
1012 | { | |
1013 | if (wacom->wacom_wac.input) | |
1014 | input_unregister_device(wacom->wacom_wac.input); | |
1015 | if (wacom->wacom_wac.pad_input) | |
1016 | input_unregister_device(wacom->wacom_wac.pad_input); | |
1017 | wacom->wacom_wac.input = NULL; | |
1018 | wacom->wacom_wac.pad_input = NULL; | |
1019 | } | |
1020 | ||
1021 | static int wacom_register_inputs(struct wacom *wacom) | |
d2d13f18 BT |
1022 | { |
1023 | struct input_dev *input_dev, *pad_input_dev; | |
1024 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
1025 | int error; | |
1026 | ||
1027 | input_dev = wacom_allocate_input(wacom); | |
1028 | pad_input_dev = wacom_allocate_input(wacom); | |
1029 | if (!input_dev || !pad_input_dev) { | |
1030 | error = -ENOMEM; | |
1031 | goto fail1; | |
1032 | } | |
1033 | ||
3aac0ef1 | 1034 | wacom_wac->input = input_dev; |
d2d13f18 BT |
1035 | wacom_wac->pad_input = pad_input_dev; |
1036 | wacom_wac->pad_input->name = wacom_wac->pad_name; | |
1037 | ||
1963518b PC |
1038 | error = wacom_setup_input_capabilities(input_dev, wacom_wac); |
1039 | if (error) | |
d2d13f18 | 1040 | goto fail2; |
3aac0ef1 CB |
1041 | |
1042 | error = input_register_device(input_dev); | |
1963518b PC |
1043 | if (error) |
1044 | goto fail2; | |
1045 | ||
d2d13f18 BT |
1046 | error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac); |
1047 | if (error) { | |
1048 | /* no pad in use on this interface */ | |
1049 | input_free_device(pad_input_dev); | |
1050 | wacom_wac->pad_input = NULL; | |
1051 | pad_input_dev = NULL; | |
1052 | } else { | |
1053 | error = input_register_device(pad_input_dev); | |
1054 | if (error) | |
1055 | goto fail3; | |
1056 | } | |
1057 | ||
1963518b | 1058 | return 0; |
3aac0ef1 | 1059 | |
d2d13f18 BT |
1060 | fail3: |
1061 | input_unregister_device(input_dev); | |
1062 | input_dev = NULL; | |
1963518b | 1063 | fail2: |
1963518b | 1064 | wacom_wac->input = NULL; |
d2d13f18 | 1065 | wacom_wac->pad_input = NULL; |
1963518b | 1066 | fail1: |
d2d13f18 BT |
1067 | if (input_dev) |
1068 | input_free_device(input_dev); | |
1069 | if (pad_input_dev) | |
1070 | input_free_device(pad_input_dev); | |
3aac0ef1 CB |
1071 | return error; |
1072 | } | |
1073 | ||
16bf288c CB |
1074 | static void wacom_wireless_work(struct work_struct *work) |
1075 | { | |
1076 | struct wacom *wacom = container_of(work, struct wacom, work); | |
1077 | struct usb_device *usbdev = wacom->usbdev; | |
1078 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
29b47391 | 1079 | struct hid_device *hdev1, *hdev2; |
b7af2bb8 CB |
1080 | struct wacom *wacom1, *wacom2; |
1081 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
1082 | int error; | |
16bf288c CB |
1083 | |
1084 | /* | |
1085 | * Regardless if this is a disconnect or a new tablet, | |
b7af2bb8 | 1086 | * remove any existing input and battery devices. |
16bf288c CB |
1087 | */ |
1088 | ||
b7af2bb8 CB |
1089 | wacom_destroy_battery(wacom); |
1090 | ||
16bf288c | 1091 | /* Stylus interface */ |
29b47391 BT |
1092 | hdev1 = usb_get_intfdata(usbdev->config->interface[1]); |
1093 | wacom1 = hid_get_drvdata(hdev1); | |
b7af2bb8 | 1094 | wacom_wac1 = &(wacom1->wacom_wac); |
008f4d9e | 1095 | wacom_unregister_inputs(wacom1); |
16bf288c CB |
1096 | |
1097 | /* Touch interface */ | |
29b47391 BT |
1098 | hdev2 = usb_get_intfdata(usbdev->config->interface[2]); |
1099 | wacom2 = hid_get_drvdata(hdev2); | |
b7af2bb8 | 1100 | wacom_wac2 = &(wacom2->wacom_wac); |
008f4d9e | 1101 | wacom_unregister_inputs(wacom2); |
16bf288c CB |
1102 | |
1103 | if (wacom_wac->pid == 0) { | |
eb71d1bb | 1104 | dev_info(&wacom->intf->dev, "wireless tablet disconnected\n"); |
16bf288c | 1105 | } else { |
29b47391 | 1106 | const struct hid_device_id *id = wacom_ids; |
16bf288c | 1107 | |
eb71d1bb DT |
1108 | dev_info(&wacom->intf->dev, |
1109 | "wireless tablet connected with PID %x\n", | |
1110 | wacom_wac->pid); | |
16bf288c | 1111 | |
29b47391 BT |
1112 | while (id->bus) { |
1113 | if (id->vendor == USB_VENDOR_ID_WACOM && | |
1114 | id->product == wacom_wac->pid) | |
16bf288c CB |
1115 | break; |
1116 | id++; | |
1117 | } | |
1118 | ||
29b47391 | 1119 | if (!id->bus) { |
eb71d1bb DT |
1120 | dev_info(&wacom->intf->dev, |
1121 | "ignoring unknown PID.\n"); | |
16bf288c CB |
1122 | return; |
1123 | } | |
1124 | ||
1125 | /* Stylus interface */ | |
b7af2bb8 | 1126 | wacom_wac1->features = |
29b47391 | 1127 | *((struct wacom_features *)id->driver_data); |
b7af2bb8 | 1128 | wacom_wac1->features.device_type = BTN_TOOL_PEN; |
57bcfce3 PC |
1129 | snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen", |
1130 | wacom_wac1->features.name); | |
008f4d9e BT |
1131 | snprintf(wacom_wac1->pad_name, WACOM_NAME_MAX, "%s (WL) Pad", |
1132 | wacom_wac1->features.name); | |
961794a0 PC |
1133 | wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max; |
1134 | wacom_wac1->shared->type = wacom_wac1->features.type; | |
008f4d9e | 1135 | error = wacom_register_inputs(wacom1); |
b7af2bb8 | 1136 | if (error) |
57bcfce3 | 1137 | goto fail; |
16bf288c CB |
1138 | |
1139 | /* Touch interface */ | |
b5fd2a3e PC |
1140 | if (wacom_wac1->features.touch_max || |
1141 | wacom_wac1->features.type == INTUOSHT) { | |
57bcfce3 | 1142 | wacom_wac2->features = |
29b47391 | 1143 | *((struct wacom_features *)id->driver_data); |
57bcfce3 PC |
1144 | wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3; |
1145 | wacom_wac2->features.device_type = BTN_TOOL_FINGER; | |
1146 | wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096; | |
1147 | if (wacom_wac2->features.touch_max) | |
1148 | snprintf(wacom_wac2->name, WACOM_NAME_MAX, | |
1149 | "%s (WL) Finger",wacom_wac2->features.name); | |
1150 | else | |
1151 | snprintf(wacom_wac2->name, WACOM_NAME_MAX, | |
1152 | "%s (WL) Pad",wacom_wac2->features.name); | |
008f4d9e BT |
1153 | snprintf(wacom_wac2->pad_name, WACOM_NAME_MAX, |
1154 | "%s (WL) Pad", wacom_wac2->features.name); | |
1155 | error = wacom_register_inputs(wacom2); | |
57bcfce3 PC |
1156 | if (error) |
1157 | goto fail; | |
961794a0 PC |
1158 | |
1159 | if (wacom_wac1->features.type == INTUOSHT && | |
1160 | wacom_wac1->features.touch_max) | |
1161 | wacom_wac->shared->touch_input = wacom_wac2->input; | |
57bcfce3 | 1162 | } |
b7af2bb8 CB |
1163 | |
1164 | error = wacom_initialize_battery(wacom); | |
1165 | if (error) | |
57bcfce3 | 1166 | goto fail; |
16bf288c | 1167 | } |
b7af2bb8 CB |
1168 | |
1169 | return; | |
1170 | ||
57bcfce3 | 1171 | fail: |
008f4d9e BT |
1172 | wacom_unregister_inputs(wacom1); |
1173 | wacom_unregister_inputs(wacom2); | |
b7af2bb8 | 1174 | return; |
16bf288c CB |
1175 | } |
1176 | ||
401d7d10 PC |
1177 | /* |
1178 | * Not all devices report physical dimensions from HID. | |
1179 | * Compute the default from hardcoded logical dimension | |
1180 | * and resolution before driver overwrites them. | |
1181 | */ | |
1182 | static void wacom_set_default_phy(struct wacom_features *features) | |
1183 | { | |
1184 | if (features->x_resolution) { | |
1185 | features->x_phy = (features->x_max * 100) / | |
1186 | features->x_resolution; | |
1187 | features->y_phy = (features->y_max * 100) / | |
1188 | features->y_resolution; | |
1189 | } | |
1190 | } | |
1191 | ||
1192 | static void wacom_calculate_res(struct wacom_features *features) | |
1193 | { | |
1194 | features->x_resolution = wacom_calc_hid_res(features->x_max, | |
1195 | features->x_phy, | |
1196 | features->unit, | |
1197 | features->unitExpo); | |
1198 | features->y_resolution = wacom_calc_hid_res(features->y_max, | |
1199 | features->y_phy, | |
1200 | features->unit, | |
1201 | features->unitExpo); | |
1202 | } | |
1203 | ||
01c846f9 BT |
1204 | static int wacom_hid_report_len(struct hid_report *report) |
1205 | { | |
1206 | /* equivalent to DIV_ROUND_UP(report->size, 8) + !!(report->id > 0) */ | |
1207 | return ((report->size - 1) >> 3) + 1 + (report->id > 0); | |
1208 | } | |
1209 | ||
1210 | static size_t wacom_compute_pktlen(struct hid_device *hdev) | |
1211 | { | |
1212 | struct hid_report_enum *report_enum; | |
1213 | struct hid_report *report; | |
1214 | size_t size = 0; | |
1215 | ||
1216 | report_enum = hdev->report_enum + HID_INPUT_REPORT; | |
1217 | ||
1218 | list_for_each_entry(report, &report_enum->report_list, list) { | |
1219 | size_t report_size = wacom_hid_report_len(report); | |
1220 | if (report_size > size) | |
1221 | size = report_size; | |
1222 | } | |
1223 | ||
1224 | return size; | |
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 | 1231 | struct usb_device *dev = interface_to_usbdev(intf); |
3bea733a PC |
1232 | struct wacom *wacom; |
1233 | struct wacom_wac *wacom_wac; | |
e33da8a5 | 1234 | struct wacom_features *features; |
e33da8a5 | 1235 | int error; |
3bea733a | 1236 | |
29b47391 | 1237 | if (!id->driver_data) |
b036f6fb BB |
1238 | return -EINVAL; |
1239 | ||
3bea733a | 1240 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
f1823940 DC |
1241 | if (!wacom) |
1242 | return -ENOMEM; | |
e33da8a5 | 1243 | |
29b47391 BT |
1244 | hid_set_drvdata(hdev, wacom); |
1245 | wacom->hdev = hdev; | |
1246 | ||
ba9a3541 BT |
1247 | /* ask for the report descriptor to be loaded by HID */ |
1248 | error = hid_parse(hdev); | |
1249 | if (error) { | |
1250 | hid_err(hdev, "parse failed\n"); | |
1251 | goto fail1; | |
1252 | } | |
1253 | ||
51269fe8 | 1254 | wacom_wac = &wacom->wacom_wac; |
29b47391 | 1255 | wacom_wac->features = *((struct wacom_features *)id->driver_data); |
e33da8a5 | 1256 | features = &wacom_wac->features; |
01c846f9 | 1257 | features->pktlen = wacom_compute_pktlen(hdev); |
e33da8a5 JC |
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 | 1272 | |
401d7d10 PC |
1273 | /* set the default size in case we do not get them from hid */ |
1274 | wacom_set_default_phy(features); | |
1275 | ||
f393ee2b | 1276 | /* Retrieve the physical and logical size for touch devices */ |
27b20a9d | 1277 | error = wacom_retrieve_hid_descriptor(hdev, features); |
ec67bbed | 1278 | if (error) |
29b47391 | 1279 | goto fail1; |
545f4e99 | 1280 | |
ae584ca4 JG |
1281 | /* |
1282 | * Intuos5 has no useful data about its touch interface in its | |
01c846f9 | 1283 | * HID descriptor. If this is the touch interface (PacketSize |
ae584ca4 JG |
1284 | * of WACOM_PKGLEN_BBTOUCH3), override the table values. |
1285 | */ | |
b5fd2a3e | 1286 | if (features->type >= INTUOS5S && features->type <= INTUOSHT) { |
01c846f9 | 1287 | if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) { |
ae584ca4 | 1288 | features->device_type = BTN_TOOL_FINGER; |
ae584ca4 | 1289 | |
ae584ca4 JG |
1290 | features->x_max = 4096; |
1291 | features->y_max = 4096; | |
1292 | } else { | |
1293 | features->device_type = BTN_TOOL_PEN; | |
1294 | } | |
1295 | } | |
1296 | ||
bc73dd39 HR |
1297 | wacom_setup_device_quirks(features); |
1298 | ||
401d7d10 PC |
1299 | /* set unit to "100th of a mm" for devices not reported by HID */ |
1300 | if (!features->unit) { | |
1301 | features->unit = 0x11; | |
1302 | features->unitExpo = 16 - 3; | |
1303 | } | |
1304 | wacom_calculate_res(features); | |
1305 | ||
49b764ae | 1306 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
d2d13f18 BT |
1307 | snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name), |
1308 | "%s Pad", features->name); | |
49b764ae | 1309 | |
bc73dd39 | 1310 | if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { |
aea2bf6a JG |
1311 | struct usb_device *other_dev; |
1312 | ||
49b764ae | 1313 | /* Append the device type to the name */ |
57bcfce3 PC |
1314 | if (features->device_type != BTN_TOOL_FINGER) |
1315 | strlcat(wacom_wac->name, " Pen", WACOM_NAME_MAX); | |
1316 | else if (features->touch_max) | |
1317 | strlcat(wacom_wac->name, " Finger", WACOM_NAME_MAX); | |
1318 | else | |
1319 | strlcat(wacom_wac->name, " Pad", WACOM_NAME_MAX); | |
4492efff | 1320 | |
aea2bf6a JG |
1321 | other_dev = wacom_get_sibling(dev, features->oVid, features->oPid); |
1322 | if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL) | |
1323 | other_dev = dev; | |
1324 | error = wacom_add_shared_data(wacom_wac, other_dev); | |
4492efff | 1325 | if (error) |
29b47391 | 1326 | goto fail1; |
49b764ae PC |
1327 | } |
1328 | ||
5d7e7d47 | 1329 | error = wacom_initialize_leds(wacom); |
5014186d | 1330 | if (error) |
29b47391 | 1331 | goto fail2; |
3bea733a | 1332 | |
d3825d51 | 1333 | if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { |
008f4d9e | 1334 | error = wacom_register_inputs(wacom); |
d3825d51 | 1335 | if (error) |
29b47391 | 1336 | goto fail3; |
d3825d51 | 1337 | } |
5d7e7d47 | 1338 | |
ec67bbed | 1339 | /* Note that if query fails it is not a hard failure */ |
27b20a9d | 1340 | wacom_query_tablet_data(hdev, features); |
3bea733a | 1341 | |
29b47391 | 1342 | /* Regular HID work starts now */ |
29b47391 BT |
1343 | error = hid_hw_start(hdev, HID_CONNECT_HIDRAW); |
1344 | if (error) { | |
1345 | hid_err(hdev, "hw start failed\n"); | |
1346 | goto fail4; | |
d3825d51 | 1347 | } |
961794a0 | 1348 | |
29b47391 BT |
1349 | if (features->quirks & WACOM_QUIRK_MONITOR) |
1350 | error = hid_hw_open(hdev); | |
1351 | ||
961794a0 PC |
1352 | if (wacom_wac->features.type == INTUOSHT && wacom_wac->features.touch_max) { |
1353 | if (wacom_wac->features.device_type == BTN_TOOL_FINGER) | |
1354 | wacom_wac->shared->touch_input = wacom_wac->input; | |
1355 | } | |
1356 | ||
3bea733a PC |
1357 | return 0; |
1358 | ||
29b47391 BT |
1359 | fail4: wacom_unregister_inputs(wacom); |
1360 | fail3: wacom_destroy_leds(wacom); | |
1361 | fail2: wacom_remove_shared_data(wacom_wac); | |
3aac0ef1 | 1362 | fail1: kfree(wacom); |
29b47391 | 1363 | hid_set_drvdata(hdev, NULL); |
5014186d | 1364 | return error; |
3bea733a PC |
1365 | } |
1366 | ||
29b47391 | 1367 | static void wacom_remove(struct hid_device *hdev) |
3bea733a | 1368 | { |
29b47391 | 1369 | struct wacom *wacom = hid_get_drvdata(hdev); |
3bea733a | 1370 | |
29b47391 | 1371 | hid_hw_stop(hdev); |
e7224094 | 1372 | |
16bf288c | 1373 | cancel_work_sync(&wacom->work); |
008f4d9e | 1374 | wacom_unregister_inputs(wacom); |
a1d552cc | 1375 | wacom_destroy_battery(wacom); |
5d7e7d47 | 1376 | wacom_destroy_leds(wacom); |
51269fe8 | 1377 | wacom_remove_shared_data(&wacom->wacom_wac); |
e7224094 | 1378 | |
29b47391 BT |
1379 | hid_set_drvdata(hdev, NULL); |
1380 | kfree(wacom); | |
e7224094 ON |
1381 | } |
1382 | ||
29b47391 | 1383 | static int wacom_resume(struct hid_device *hdev) |
e7224094 | 1384 | { |
29b47391 | 1385 | struct wacom *wacom = hid_get_drvdata(hdev); |
51269fe8 | 1386 | struct wacom_features *features = &wacom->wacom_wac.features; |
e7224094 ON |
1387 | |
1388 | mutex_lock(&wacom->lock); | |
38101475 PC |
1389 | |
1390 | /* switch to wacom mode first */ | |
27b20a9d | 1391 | wacom_query_tablet_data(hdev, features); |
5d7e7d47 | 1392 | wacom_led_control(wacom); |
38101475 | 1393 | |
e7224094 ON |
1394 | mutex_unlock(&wacom->lock); |
1395 | ||
29b47391 | 1396 | return 0; |
e7224094 ON |
1397 | } |
1398 | ||
29b47391 | 1399 | static int wacom_reset_resume(struct hid_device *hdev) |
e7224094 | 1400 | { |
29b47391 | 1401 | return wacom_resume(hdev); |
3bea733a PC |
1402 | } |
1403 | ||
29b47391 | 1404 | static struct hid_driver wacom_driver = { |
3bea733a | 1405 | .name = "wacom", |
b036f6fb | 1406 | .id_table = wacom_ids, |
3bea733a | 1407 | .probe = wacom_probe, |
29b47391 BT |
1408 | .remove = wacom_remove, |
1409 | #ifdef CONFIG_PM | |
e7224094 ON |
1410 | .resume = wacom_resume, |
1411 | .reset_resume = wacom_reset_resume, | |
29b47391 BT |
1412 | #endif |
1413 | .raw_event = wacom_raw_event, | |
3bea733a | 1414 | }; |
29b47391 | 1415 | module_hid_driver(wacom_driver); |