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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 | |
545f4e99 PC |
18 | /* defines to get HID report descriptor */ |
19 | #define HID_DEVICET_HID (USB_TYPE_CLASS | 0x01) | |
20 | #define HID_DEVICET_REPORT (USB_TYPE_CLASS | 0x02) | |
f54bc61c BT |
21 | #define HID_HDESC_USAGE_UNDEFINED 0x00 |
22 | #define HID_HDESC_USAGE_PAGE 0x05 | |
23 | #define HID_HDESC_USAGE 0x09 | |
24 | #define HID_HDESC_COLLECTION 0xa1 | |
25 | #define HID_HDESC_COLLECTION_LOGICAL 0x02 | |
26 | #define HID_HDESC_COLLECTION_END 0xc0 | |
27 | ||
28 | struct wac_hid_descriptor { | |
545f4e99 PC |
29 | struct usb_descriptor_header header; |
30 | __le16 bcdHID; | |
31 | u8 bCountryCode; | |
32 | u8 bNumDescriptors; | |
33 | u8 bDescriptorType; | |
34 | __le16 wDescriptorLength; | |
35 | } __attribute__ ((packed)); | |
36 | ||
37 | /* defines to get/set USB message */ | |
3bea733a PC |
38 | #define USB_REQ_GET_REPORT 0x01 |
39 | #define USB_REQ_SET_REPORT 0x09 | |
5d7e7d47 | 40 | |
545f4e99 | 41 | #define WAC_HID_FEATURE_REPORT 0x03 |
a417ea44 | 42 | #define WAC_MSG_RETRIES 5 |
3bea733a | 43 | |
5d7e7d47 EH |
44 | #define WAC_CMD_LED_CONTROL 0x20 |
45 | #define WAC_CMD_ICON_START 0x21 | |
46 | #define WAC_CMD_ICON_XFER 0x23 | |
47 | #define WAC_CMD_RETRIES 10 | |
48 | ||
49 | static int wacom_get_report(struct usb_interface *intf, u8 type, u8 id, | |
50 | void *buf, size_t size, unsigned int retries) | |
3bea733a | 51 | { |
5d7e7d47 EH |
52 | struct usb_device *dev = interface_to_usbdev(intf); |
53 | int retval; | |
54 | ||
55 | do { | |
56 | retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
57 | USB_REQ_GET_REPORT, | |
6e8ec537 CB |
58 | USB_DIR_IN | USB_TYPE_CLASS | |
59 | USB_RECIP_INTERFACE, | |
5d7e7d47 EH |
60 | (type << 8) + id, |
61 | intf->altsetting[0].desc.bInterfaceNumber, | |
62 | buf, size, 100); | |
63 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); | |
64 | ||
65 | return retval; | |
3bea733a PC |
66 | } |
67 | ||
5d7e7d47 EH |
68 | static int wacom_set_report(struct usb_interface *intf, u8 type, u8 id, |
69 | void *buf, size_t size, unsigned int retries) | |
3bea733a | 70 | { |
5d7e7d47 EH |
71 | struct usb_device *dev = interface_to_usbdev(intf); |
72 | int retval; | |
73 | ||
74 | do { | |
75 | retval = usb_control_msg(dev, usb_sndctrlpipe(dev, 0), | |
76 | USB_REQ_SET_REPORT, | |
77 | USB_TYPE_CLASS | USB_RECIP_INTERFACE, | |
78 | (type << 8) + id, | |
79 | intf->altsetting[0].desc.bInterfaceNumber, | |
80 | buf, size, 1000); | |
81 | } while ((retval == -ETIMEDOUT || retval == -EPIPE) && --retries); | |
82 | ||
83 | return retval; | |
3bea733a PC |
84 | } |
85 | ||
29b47391 BT |
86 | static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report, |
87 | u8 *raw_data, int size) | |
3bea733a | 88 | { |
29b47391 | 89 | struct wacom *wacom = hid_get_drvdata(hdev); |
3bea733a | 90 | |
29b47391 BT |
91 | if (size > WACOM_PKGLEN_MAX) |
92 | return 1; | |
3bea733a | 93 | |
29b47391 | 94 | memcpy(wacom->wacom_wac.data, raw_data, size); |
3bea733a | 95 | |
29b47391 BT |
96 | wacom_wac_irq(&wacom->wacom_wac, size); |
97 | ||
98 | return 0; | |
3bea733a PC |
99 | } |
100 | ||
3bea733a PC |
101 | static int wacom_open(struct input_dev *dev) |
102 | { | |
7791bdae | 103 | struct wacom *wacom = input_get_drvdata(dev); |
29b47391 | 104 | int retval; |
f6cd3783 DT |
105 | |
106 | mutex_lock(&wacom->lock); | |
29b47391 | 107 | retval = hid_hw_open(wacom->hdev); |
e7224094 | 108 | mutex_unlock(&wacom->lock); |
29b47391 | 109 | |
f6cd3783 | 110 | return retval; |
3bea733a PC |
111 | } |
112 | ||
113 | static void wacom_close(struct input_dev *dev) | |
114 | { | |
7791bdae | 115 | struct wacom *wacom = input_get_drvdata(dev); |
3bea733a | 116 | |
e7224094 | 117 | mutex_lock(&wacom->lock); |
29b47391 | 118 | hid_hw_close(wacom->hdev); |
e7224094 | 119 | mutex_unlock(&wacom->lock); |
3bea733a PC |
120 | } |
121 | ||
115d5e12 JG |
122 | /* |
123 | * Calculate the resolution of the X or Y axis, given appropriate HID data. | |
124 | * This function is little more than hidinput_calc_abs_res stripped down. | |
125 | */ | |
126 | static int wacom_calc_hid_res(int logical_extents, int physical_extents, | |
127 | unsigned char unit, unsigned char exponent) | |
128 | { | |
129 | int prev, unit_exponent; | |
130 | ||
131 | /* Check if the extents are sane */ | |
132 | if (logical_extents <= 0 || physical_extents <= 0) | |
133 | return 0; | |
134 | ||
135 | /* Get signed value of nybble-sized twos-compliment exponent */ | |
136 | unit_exponent = exponent; | |
137 | if (unit_exponent > 7) | |
138 | unit_exponent -= 16; | |
139 | ||
140 | /* Convert physical_extents to millimeters */ | |
141 | if (unit == 0x11) { /* If centimeters */ | |
142 | unit_exponent += 1; | |
143 | } else if (unit == 0x13) { /* If inches */ | |
144 | prev = physical_extents; | |
145 | physical_extents *= 254; | |
146 | if (physical_extents < prev) | |
147 | return 0; | |
148 | unit_exponent -= 1; | |
149 | } else { | |
150 | return 0; | |
151 | } | |
152 | ||
153 | /* Apply negative unit exponent */ | |
154 | for (; unit_exponent < 0; unit_exponent++) { | |
155 | prev = logical_extents; | |
156 | logical_extents *= 10; | |
157 | if (logical_extents < prev) | |
158 | return 0; | |
159 | } | |
160 | /* Apply positive unit exponent */ | |
161 | for (; unit_exponent > 0; unit_exponent--) { | |
162 | prev = physical_extents; | |
163 | physical_extents *= 10; | |
164 | if (physical_extents < prev) | |
165 | return 0; | |
166 | } | |
167 | ||
168 | /* Calculate resolution */ | |
169 | return logical_extents / physical_extents; | |
170 | } | |
171 | ||
4134361a CB |
172 | static int wacom_parse_logical_collection(unsigned char *report, |
173 | struct wacom_features *features) | |
174 | { | |
175 | int length = 0; | |
176 | ||
177 | if (features->type == BAMBOO_PT) { | |
178 | ||
179 | /* Logical collection is only used by 3rd gen Bamboo Touch */ | |
180 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
8b4a0c1f | 181 | features->device_type = BTN_TOOL_FINGER; |
4134361a | 182 | |
4134361a CB |
183 | features->x_max = features->y_max = |
184 | get_unaligned_le16(&report[10]); | |
185 | ||
186 | length = 11; | |
187 | } | |
188 | return length; | |
189 | } | |
190 | ||
f393ee2b PC |
191 | static void wacom_retrieve_report_data(struct usb_interface *intf, |
192 | struct wacom_features *features) | |
193 | { | |
194 | int result = 0; | |
195 | unsigned char *rep_data; | |
196 | ||
197 | rep_data = kmalloc(2, GFP_KERNEL); | |
198 | if (rep_data) { | |
199 | ||
200 | rep_data[0] = 12; | |
201 | result = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, | |
61c91dd4 | 202 | rep_data[0], rep_data, 2, |
f393ee2b PC |
203 | WAC_MSG_RETRIES); |
204 | ||
205 | if (result >= 0 && rep_data[1] > 2) | |
206 | features->touch_max = rep_data[1]; | |
207 | ||
208 | kfree(rep_data); | |
209 | } | |
210 | } | |
211 | ||
428f8588 CB |
212 | /* |
213 | * Interface Descriptor of wacom devices can be incomplete and | |
214 | * inconsistent so wacom_features table is used to store stylus | |
215 | * device's packet lengths, various maximum values, and tablet | |
216 | * resolution based on product ID's. | |
217 | * | |
218 | * For devices that contain 2 interfaces, wacom_features table is | |
219 | * inaccurate for the touch interface. Since the Interface Descriptor | |
220 | * for touch interfaces has pretty complete data, this function exists | |
221 | * to query tablet for this missing information instead of hard coding in | |
222 | * an additional table. | |
223 | * | |
224 | * A typical Interface Descriptor for a stylus will contain a | |
225 | * boot mouse application collection that is not of interest and this | |
226 | * function will ignore it. | |
227 | * | |
228 | * It also contains a digitizer application collection that also is not | |
229 | * of interest since any information it contains would be duplicate | |
230 | * of what is in wacom_features. Usually it defines a report of an array | |
231 | * of bytes that could be used as max length of the stylus packet returned. | |
232 | * If it happens to define a Digitizer-Stylus Physical Collection then | |
233 | * the X and Y logical values contain valid data but it is ignored. | |
234 | * | |
235 | * A typical Interface Descriptor for a touch interface will contain a | |
236 | * Digitizer-Finger Physical Collection which will define both logical | |
237 | * X/Y maximum as well as the physical size of tablet. Since touch | |
238 | * interfaces haven't supported pressure or distance, this is enough | |
239 | * information to override invalid values in the wacom_features table. | |
4134361a CB |
240 | * |
241 | * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical | |
242 | * Collection. Instead they define a Logical Collection with a single | |
243 | * Logical Maximum for both X and Y. | |
ae584ca4 JG |
244 | * |
245 | * Intuos5 touch interface does not contain useful data. We deal with | |
246 | * this after returning from this function. | |
428f8588 CB |
247 | */ |
248 | static int wacom_parse_hid(struct usb_interface *intf, | |
f54bc61c | 249 | struct wac_hid_descriptor *hid_desc, |
ec67bbed | 250 | struct wacom_features *features) |
545f4e99 PC |
251 | { |
252 | struct usb_device *dev = interface_to_usbdev(intf); | |
ec67bbed PC |
253 | char limit = 0; |
254 | /* result has to be defined as int for some devices */ | |
1d0d6df0 | 255 | int result = 0, touch_max = 0; |
5866d9e3 | 256 | int i = 0, page = 0, finger = 0, pen = 0; |
545f4e99 PC |
257 | unsigned char *report; |
258 | ||
259 | report = kzalloc(hid_desc->wDescriptorLength, GFP_KERNEL); | |
260 | if (!report) | |
261 | return -ENOMEM; | |
262 | ||
263 | /* retrive report descriptors */ | |
264 | do { | |
265 | result = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), | |
266 | USB_REQ_GET_DESCRIPTOR, | |
267 | USB_RECIP_INTERFACE | USB_DIR_IN, | |
268 | HID_DEVICET_REPORT << 8, | |
269 | intf->altsetting[0].desc.bInterfaceNumber, /* interface */ | |
270 | report, | |
271 | hid_desc->wDescriptorLength, | |
272 | 5000); /* 5 secs */ | |
a417ea44 | 273 | } while (result < 0 && limit++ < WAC_MSG_RETRIES); |
545f4e99 | 274 | |
384318ec | 275 | /* No need to parse the Descriptor. It isn't an error though */ |
545f4e99 PC |
276 | if (result < 0) |
277 | goto out; | |
278 | ||
279 | for (i = 0; i < hid_desc->wDescriptorLength; i++) { | |
280 | ||
281 | switch (report[i]) { | |
f54bc61c | 282 | case HID_HDESC_USAGE_PAGE: |
5866d9e3 JG |
283 | page = report[i + 1]; |
284 | i++; | |
545f4e99 PC |
285 | break; |
286 | ||
f54bc61c | 287 | case HID_HDESC_USAGE: |
5866d9e3 | 288 | switch (page << 16 | report[i + 1]) { |
f54bc61c | 289 | case HID_GD_X: |
5866d9e3 JG |
290 | if (finger) { |
291 | features->device_type = BTN_TOOL_FINGER; | |
292 | /* touch device at least supports one touch point */ | |
293 | touch_max = 1; | |
294 | switch (features->type) { | |
295 | case TABLETPC2FG: | |
296 | features->pktlen = WACOM_PKGLEN_TPC2FG; | |
297 | break; | |
298 | ||
299 | case MTSCREEN: | |
300 | case WACOM_24HDT: | |
301 | features->pktlen = WACOM_PKGLEN_MTOUCH; | |
302 | break; | |
303 | ||
304 | case MTTPC: | |
d51ddb2b | 305 | case MTTPC_B: |
5866d9e3 JG |
306 | features->pktlen = WACOM_PKGLEN_MTTPC; |
307 | break; | |
308 | ||
309 | case BAMBOO_PT: | |
310 | features->pktlen = WACOM_PKGLEN_BBTOUCH; | |
311 | break; | |
312 | ||
313 | default: | |
314 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; | |
315 | break; | |
316 | } | |
317 | ||
318 | switch (features->type) { | |
319 | case BAMBOO_PT: | |
320 | features->x_phy = | |
321 | get_unaligned_le16(&report[i + 5]); | |
322 | features->x_max = | |
323 | get_unaligned_le16(&report[i + 8]); | |
324 | i += 15; | |
325 | break; | |
326 | ||
327 | case WACOM_24HDT: | |
545f4e99 | 328 | features->x_max = |
252f7769 | 329 | get_unaligned_le16(&report[i + 3]); |
5866d9e3 JG |
330 | features->x_phy = |
331 | get_unaligned_le16(&report[i + 8]); | |
332 | features->unit = report[i - 1]; | |
333 | features->unitExpo = report[i - 3]; | |
334 | i += 12; | |
335 | break; | |
336 | ||
d51ddb2b JG |
337 | case MTTPC_B: |
338 | features->x_max = | |
339 | get_unaligned_le16(&report[i + 3]); | |
340 | features->x_phy = | |
341 | get_unaligned_le16(&report[i + 6]); | |
342 | features->unit = report[i - 5]; | |
343 | features->unitExpo = report[i - 3]; | |
344 | i += 9; | |
345 | break; | |
346 | ||
5866d9e3 JG |
347 | default: |
348 | features->x_max = | |
349 | get_unaligned_le16(&report[i + 3]); | |
350 | features->x_phy = | |
351 | get_unaligned_le16(&report[i + 6]); | |
352 | features->unit = report[i + 9]; | |
353 | features->unitExpo = report[i + 11]; | |
354 | i += 12; | |
355 | break; | |
545f4e99 | 356 | } |
5866d9e3 JG |
357 | } else if (pen) { |
358 | /* penabled only accepts exact bytes of data */ | |
359 | if (features->type >= TABLETPC) | |
360 | features->pktlen = WACOM_PKGLEN_GRAPHIRE; | |
361 | features->device_type = BTN_TOOL_PEN; | |
362 | features->x_max = | |
363 | get_unaligned_le16(&report[i + 3]); | |
364 | i += 4; | |
545f4e99 PC |
365 | } |
366 | break; | |
367 | ||
f54bc61c | 368 | case HID_GD_Y: |
5866d9e3 JG |
369 | if (finger) { |
370 | switch (features->type) { | |
371 | case TABLETPC2FG: | |
372 | case MTSCREEN: | |
373 | case MTTPC: | |
374 | features->y_max = | |
375 | get_unaligned_le16(&report[i + 3]); | |
376 | features->y_phy = | |
377 | get_unaligned_le16(&report[i + 6]); | |
378 | i += 7; | |
379 | break; | |
380 | ||
381 | case WACOM_24HDT: | |
382 | features->y_max = | |
383 | get_unaligned_le16(&report[i + 3]); | |
384 | features->y_phy = | |
385 | get_unaligned_le16(&report[i - 2]); | |
386 | i += 7; | |
387 | break; | |
388 | ||
389 | case BAMBOO_PT: | |
390 | features->y_phy = | |
391 | get_unaligned_le16(&report[i + 3]); | |
392 | features->y_max = | |
393 | get_unaligned_le16(&report[i + 6]); | |
394 | i += 12; | |
395 | break; | |
396 | ||
d51ddb2b JG |
397 | case MTTPC_B: |
398 | features->y_max = | |
399 | get_unaligned_le16(&report[i + 3]); | |
400 | features->y_phy = | |
401 | get_unaligned_le16(&report[i + 6]); | |
402 | i += 9; | |
403 | break; | |
404 | ||
5866d9e3 | 405 | default: |
ec67bbed | 406 | features->y_max = |
5866d9e3 JG |
407 | features->x_max; |
408 | features->y_phy = | |
252f7769 | 409 | get_unaligned_le16(&report[i + 3]); |
ec67bbed | 410 | i += 4; |
5866d9e3 | 411 | break; |
ec67bbed | 412 | } |
5866d9e3 JG |
413 | } else if (pen) { |
414 | features->y_max = | |
415 | get_unaligned_le16(&report[i + 3]); | |
416 | i += 4; | |
ec67bbed | 417 | } |
545f4e99 PC |
418 | break; |
419 | ||
f54bc61c | 420 | case HID_DG_FINGER: |
545f4e99 PC |
421 | finger = 1; |
422 | i++; | |
423 | break; | |
424 | ||
428f8588 CB |
425 | /* |
426 | * Requiring Stylus Usage will ignore boot mouse | |
427 | * X/Y values and some cases of invalid Digitizer X/Y | |
428 | * values commonly reported. | |
429 | */ | |
f54bc61c | 430 | case HID_DG_STYLUS: |
545f4e99 PC |
431 | pen = 1; |
432 | i++; | |
433 | break; | |
f393ee2b | 434 | |
f54bc61c | 435 | case HID_DG_CONTACTMAX: |
1cecc5cc PC |
436 | /* leave touch_max as is if predefined */ |
437 | if (!features->touch_max) | |
438 | wacom_retrieve_report_data(intf, features); | |
f393ee2b PC |
439 | i++; |
440 | break; | |
e9fc413f | 441 | |
f54bc61c | 442 | case HID_DG_TIPPRESSURE: |
e9fc413f JG |
443 | if (pen) { |
444 | features->pressure_max = | |
445 | get_unaligned_le16(&report[i + 3]); | |
446 | i += 4; | |
447 | } | |
448 | break; | |
545f4e99 PC |
449 | } |
450 | break; | |
451 | ||
f54bc61c | 452 | case HID_HDESC_COLLECTION_END: |
ec67bbed | 453 | /* reset UsagePage and Finger */ |
5866d9e3 | 454 | finger = page = 0; |
545f4e99 | 455 | break; |
4134361a | 456 | |
f54bc61c | 457 | case HID_HDESC_COLLECTION: |
4134361a CB |
458 | i++; |
459 | switch (report[i]) { | |
f54bc61c | 460 | case HID_HDESC_COLLECTION_LOGICAL: |
4134361a CB |
461 | i += wacom_parse_logical_collection(&report[i], |
462 | features); | |
463 | break; | |
464 | } | |
465 | break; | |
545f4e99 PC |
466 | } |
467 | } | |
468 | ||
545f4e99 | 469 | out: |
1d0d6df0 PC |
470 | if (!features->touch_max && touch_max) |
471 | features->touch_max = touch_max; | |
384318ec | 472 | result = 0; |
545f4e99 PC |
473 | kfree(report); |
474 | return result; | |
475 | } | |
476 | ||
fe494bc2 | 477 | static int wacom_set_device_mode(struct usb_interface *intf, int report_id, int length, int mode) |
3b7307c2 DT |
478 | { |
479 | unsigned char *rep_data; | |
fe494bc2 | 480 | int error = -ENOMEM, limit = 0; |
3b7307c2 | 481 | |
fe494bc2 | 482 | rep_data = kzalloc(length, GFP_KERNEL); |
3b7307c2 | 483 | if (!rep_data) |
ec67bbed PC |
484 | return error; |
485 | ||
fe494bc2 | 486 | do { |
9937c026 CB |
487 | rep_data[0] = report_id; |
488 | rep_data[1] = mode; | |
489 | ||
fe494bc2 JG |
490 | error = wacom_set_report(intf, WAC_HID_FEATURE_REPORT, |
491 | report_id, rep_data, length, 1); | |
3cb83157 BT |
492 | if (error >= 0) |
493 | error = wacom_get_report(intf, WAC_HID_FEATURE_REPORT, | |
494 | report_id, rep_data, length, 1); | |
fe494bc2 JG |
495 | } while ((error < 0 || rep_data[1] != mode) && limit++ < WAC_MSG_RETRIES); |
496 | ||
497 | kfree(rep_data); | |
498 | ||
499 | return error < 0 ? error : 0; | |
500 | } | |
501 | ||
502 | /* | |
503 | * Switch the tablet into its most-capable mode. Wacom tablets are | |
504 | * typically configured to power-up in a mode which sends mouse-like | |
505 | * reports to the OS. To get absolute position, pressure data, etc. | |
506 | * from the tablet, it is necessary to switch the tablet out of this | |
507 | * mode and into one which sends the full range of tablet data. | |
508 | */ | |
509 | static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_features *features) | |
510 | { | |
1963518b | 511 | if (features->device_type == BTN_TOOL_FINGER) { |
ea2e6024 | 512 | if (features->type > TABLETPC) { |
fe494bc2 JG |
513 | /* MT Tablet PC touch */ |
514 | return wacom_set_device_mode(intf, 3, 4, 4); | |
515 | } | |
36d3c510 | 516 | else if (features->type == WACOM_24HDT || features->type == CINTIQ_HYBRID) { |
b1e4279e JG |
517 | return wacom_set_device_mode(intf, 18, 3, 2); |
518 | } | |
fe494bc2 JG |
519 | } else if (features->device_type == BTN_TOOL_PEN) { |
520 | if (features->type <= BAMBOO_PT && features->type != WIRELESS) { | |
521 | return wacom_set_device_mode(intf, 2, 2, 2); | |
1963518b | 522 | } |
ec67bbed | 523 | } |
3b7307c2 | 524 | |
fe494bc2 | 525 | return 0; |
3b7307c2 DT |
526 | } |
527 | ||
ec67bbed | 528 | static int wacom_retrieve_hid_descriptor(struct usb_interface *intf, |
1963518b | 529 | struct wacom_features *features) |
ec67bbed PC |
530 | { |
531 | int error = 0; | |
532 | struct usb_host_interface *interface = intf->cur_altsetting; | |
f54bc61c | 533 | struct wac_hid_descriptor *hid_desc; |
ec67bbed | 534 | |
fed87e65 | 535 | /* default features */ |
ec67bbed | 536 | features->device_type = BTN_TOOL_PEN; |
fed87e65 HR |
537 | features->x_fuzz = 4; |
538 | features->y_fuzz = 4; | |
539 | features->pressure_fuzz = 0; | |
540 | features->distance_fuzz = 0; | |
ec67bbed | 541 | |
d3825d51 CB |
542 | /* |
543 | * The wireless device HID is basic and layout conflicts with | |
544 | * other tablets (monitor and touch interface can look like pen). | |
545 | * Skip the query for this type and modify defaults based on | |
546 | * interface number. | |
547 | */ | |
548 | if (features->type == WIRELESS) { | |
549 | if (intf->cur_altsetting->desc.bInterfaceNumber == 0) { | |
550 | features->device_type = 0; | |
551 | } else if (intf->cur_altsetting->desc.bInterfaceNumber == 2) { | |
adad004e | 552 | features->device_type = BTN_TOOL_FINGER; |
d3825d51 CB |
553 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; |
554 | } | |
555 | } | |
556 | ||
1963518b | 557 | /* only devices that support touch need to retrieve the info */ |
ea2e6024 | 558 | if (features->type < BAMBOO_PT) { |
ec67bbed | 559 | goto out; |
1963518b | 560 | } |
ec67bbed | 561 | |
a882c932 DT |
562 | error = usb_get_extra_descriptor(interface, HID_DEVICET_HID, &hid_desc); |
563 | if (error) { | |
564 | error = usb_get_extra_descriptor(&interface->endpoint[0], | |
565 | HID_DEVICET_REPORT, &hid_desc); | |
566 | if (error) { | |
eb71d1bb DT |
567 | dev_err(&intf->dev, |
568 | "can not retrieve extra class descriptor\n"); | |
ec67bbed PC |
569 | goto out; |
570 | } | |
571 | } | |
572 | error = wacom_parse_hid(intf, hid_desc, features); | |
ec67bbed | 573 | |
ec67bbed PC |
574 | out: |
575 | return error; | |
576 | } | |
577 | ||
4492efff PC |
578 | struct wacom_usbdev_data { |
579 | struct list_head list; | |
580 | struct kref kref; | |
581 | struct usb_device *dev; | |
582 | struct wacom_shared shared; | |
583 | }; | |
584 | ||
585 | static LIST_HEAD(wacom_udev_list); | |
586 | static DEFINE_MUTEX(wacom_udev_list_lock); | |
587 | ||
aea2bf6a JG |
588 | static struct usb_device *wacom_get_sibling(struct usb_device *dev, int vendor, int product) |
589 | { | |
590 | int port1; | |
591 | struct usb_device *sibling; | |
592 | ||
593 | if (vendor == 0 && product == 0) | |
594 | return dev; | |
595 | ||
596 | if (dev->parent == NULL) | |
597 | return NULL; | |
598 | ||
599 | usb_hub_for_each_child(dev->parent, port1, sibling) { | |
600 | struct usb_device_descriptor *d; | |
601 | if (sibling == NULL) | |
602 | continue; | |
603 | ||
604 | d = &sibling->descriptor; | |
605 | if (d->idVendor == vendor && d->idProduct == product) | |
606 | return sibling; | |
607 | } | |
608 | ||
609 | return NULL; | |
610 | } | |
611 | ||
4492efff PC |
612 | static struct wacom_usbdev_data *wacom_get_usbdev_data(struct usb_device *dev) |
613 | { | |
614 | struct wacom_usbdev_data *data; | |
615 | ||
616 | list_for_each_entry(data, &wacom_udev_list, list) { | |
617 | if (data->dev == dev) { | |
618 | kref_get(&data->kref); | |
619 | return data; | |
620 | } | |
621 | } | |
622 | ||
623 | return NULL; | |
624 | } | |
625 | ||
626 | static int wacom_add_shared_data(struct wacom_wac *wacom, | |
627 | struct usb_device *dev) | |
628 | { | |
629 | struct wacom_usbdev_data *data; | |
630 | int retval = 0; | |
631 | ||
632 | mutex_lock(&wacom_udev_list_lock); | |
633 | ||
634 | data = wacom_get_usbdev_data(dev); | |
635 | if (!data) { | |
636 | data = kzalloc(sizeof(struct wacom_usbdev_data), GFP_KERNEL); | |
637 | if (!data) { | |
638 | retval = -ENOMEM; | |
639 | goto out; | |
640 | } | |
641 | ||
642 | kref_init(&data->kref); | |
643 | data->dev = dev; | |
644 | list_add_tail(&data->list, &wacom_udev_list); | |
645 | } | |
646 | ||
647 | wacom->shared = &data->shared; | |
648 | ||
649 | out: | |
650 | mutex_unlock(&wacom_udev_list_lock); | |
651 | return retval; | |
652 | } | |
653 | ||
654 | static void wacom_release_shared_data(struct kref *kref) | |
655 | { | |
656 | struct wacom_usbdev_data *data = | |
657 | container_of(kref, struct wacom_usbdev_data, kref); | |
658 | ||
659 | mutex_lock(&wacom_udev_list_lock); | |
660 | list_del(&data->list); | |
661 | mutex_unlock(&wacom_udev_list_lock); | |
662 | ||
663 | kfree(data); | |
664 | } | |
665 | ||
666 | static void wacom_remove_shared_data(struct wacom_wac *wacom) | |
667 | { | |
668 | struct wacom_usbdev_data *data; | |
669 | ||
670 | if (wacom->shared) { | |
671 | data = container_of(wacom->shared, struct wacom_usbdev_data, shared); | |
672 | kref_put(&data->kref, wacom_release_shared_data); | |
673 | wacom->shared = NULL; | |
674 | } | |
675 | } | |
676 | ||
5d7e7d47 EH |
677 | static int wacom_led_control(struct wacom *wacom) |
678 | { | |
679 | unsigned char *buf; | |
9b5b95dd | 680 | int retval; |
5d7e7d47 EH |
681 | |
682 | buf = kzalloc(9, GFP_KERNEL); | |
683 | if (!buf) | |
684 | return -ENOMEM; | |
685 | ||
9b5b95dd | 686 | if (wacom->wacom_wac.features.type >= INTUOS5S && |
9a35c411 | 687 | wacom->wacom_wac.features.type <= INTUOSPL) { |
9b5b95dd JG |
688 | /* |
689 | * Touch Ring and crop mark LED luminance may take on | |
690 | * one of four values: | |
691 | * 0 = Low; 1 = Medium; 2 = High; 3 = Off | |
692 | */ | |
693 | int ring_led = wacom->led.select[0] & 0x03; | |
694 | int ring_lum = (((wacom->led.llv & 0x60) >> 5) - 1) & 0x03; | |
695 | int crop_lum = 0; | |
696 | ||
697 | buf[0] = WAC_CMD_LED_CONTROL; | |
698 | buf[1] = (crop_lum << 4) | (ring_lum << 2) | (ring_led); | |
699 | } | |
700 | else { | |
701 | int led = wacom->led.select[0] | 0x4; | |
702 | ||
703 | if (wacom->wacom_wac.features.type == WACOM_21UX2 || | |
704 | wacom->wacom_wac.features.type == WACOM_24HD) | |
705 | led |= (wacom->led.select[1] << 4) | 0x40; | |
706 | ||
707 | buf[0] = WAC_CMD_LED_CONTROL; | |
708 | buf[1] = led; | |
709 | buf[2] = wacom->led.llv; | |
710 | buf[3] = wacom->led.hlv; | |
711 | buf[4] = wacom->led.img_lum; | |
712 | } | |
5d7e7d47 EH |
713 | |
714 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_LED_CONTROL, | |
715 | buf, 9, WAC_CMD_RETRIES); | |
716 | kfree(buf); | |
717 | ||
718 | return retval; | |
719 | } | |
720 | ||
721 | static int wacom_led_putimage(struct wacom *wacom, int button_id, const void *img) | |
722 | { | |
723 | unsigned char *buf; | |
724 | int i, retval; | |
725 | ||
726 | buf = kzalloc(259, GFP_KERNEL); | |
727 | if (!buf) | |
728 | return -ENOMEM; | |
729 | ||
730 | /* Send 'start' command */ | |
731 | buf[0] = WAC_CMD_ICON_START; | |
732 | buf[1] = 1; | |
733 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
734 | buf, 2, WAC_CMD_RETRIES); | |
735 | if (retval < 0) | |
736 | goto out; | |
737 | ||
738 | buf[0] = WAC_CMD_ICON_XFER; | |
739 | buf[1] = button_id & 0x07; | |
740 | for (i = 0; i < 4; i++) { | |
741 | buf[2] = i; | |
742 | memcpy(buf + 3, img + i * 256, 256); | |
743 | ||
744 | retval = wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_XFER, | |
745 | buf, 259, WAC_CMD_RETRIES); | |
746 | if (retval < 0) | |
747 | break; | |
748 | } | |
749 | ||
750 | /* Send 'stop' */ | |
751 | buf[0] = WAC_CMD_ICON_START; | |
752 | buf[1] = 0; | |
753 | wacom_set_report(wacom->intf, 0x03, WAC_CMD_ICON_START, | |
754 | buf, 2, WAC_CMD_RETRIES); | |
755 | ||
756 | out: | |
757 | kfree(buf); | |
758 | return retval; | |
759 | } | |
760 | ||
09e7d941 | 761 | static ssize_t wacom_led_select_store(struct device *dev, int set_id, |
5d7e7d47 EH |
762 | const char *buf, size_t count) |
763 | { | |
29b47391 BT |
764 | struct hid_device *hdev = dev_get_drvdata(dev); |
765 | struct wacom *wacom = hid_get_drvdata(hdev); | |
5d7e7d47 EH |
766 | unsigned int id; |
767 | int err; | |
768 | ||
769 | err = kstrtouint(buf, 10, &id); | |
770 | if (err) | |
771 | return err; | |
772 | ||
773 | mutex_lock(&wacom->lock); | |
774 | ||
09e7d941 | 775 | wacom->led.select[set_id] = id & 0x3; |
5d7e7d47 EH |
776 | err = wacom_led_control(wacom); |
777 | ||
778 | mutex_unlock(&wacom->lock); | |
779 | ||
780 | return err < 0 ? err : count; | |
781 | } | |
782 | ||
09e7d941 PC |
783 | #define DEVICE_LED_SELECT_ATTR(SET_ID) \ |
784 | static ssize_t wacom_led##SET_ID##_select_store(struct device *dev, \ | |
785 | struct device_attribute *attr, const char *buf, size_t count) \ | |
786 | { \ | |
787 | return wacom_led_select_store(dev, SET_ID, buf, count); \ | |
788 | } \ | |
04c59abd PC |
789 | static ssize_t wacom_led##SET_ID##_select_show(struct device *dev, \ |
790 | struct device_attribute *attr, char *buf) \ | |
791 | { \ | |
29b47391 BT |
792 | struct hid_device *hdev = dev_get_drvdata(dev); \ |
793 | struct wacom *wacom = hid_get_drvdata(hdev); \ | |
04c59abd PC |
794 | return snprintf(buf, 2, "%d\n", wacom->led.select[SET_ID]); \ |
795 | } \ | |
796 | static DEVICE_ATTR(status_led##SET_ID##_select, S_IWUSR | S_IRUSR, \ | |
797 | wacom_led##SET_ID##_select_show, \ | |
09e7d941 PC |
798 | wacom_led##SET_ID##_select_store) |
799 | ||
800 | DEVICE_LED_SELECT_ATTR(0); | |
801 | DEVICE_LED_SELECT_ATTR(1); | |
5d7e7d47 EH |
802 | |
803 | static ssize_t wacom_luminance_store(struct wacom *wacom, u8 *dest, | |
804 | const char *buf, size_t count) | |
805 | { | |
806 | unsigned int value; | |
807 | int err; | |
808 | ||
809 | err = kstrtouint(buf, 10, &value); | |
810 | if (err) | |
811 | return err; | |
812 | ||
813 | mutex_lock(&wacom->lock); | |
814 | ||
815 | *dest = value & 0x7f; | |
816 | err = wacom_led_control(wacom); | |
817 | ||
818 | mutex_unlock(&wacom->lock); | |
819 | ||
820 | return err < 0 ? err : count; | |
821 | } | |
822 | ||
823 | #define DEVICE_LUMINANCE_ATTR(name, field) \ | |
824 | static ssize_t wacom_##name##_luminance_store(struct device *dev, \ | |
825 | struct device_attribute *attr, const char *buf, size_t count) \ | |
826 | { \ | |
29b47391 BT |
827 | struct hid_device *hdev = dev_get_drvdata(dev); \ |
828 | struct wacom *wacom = hid_get_drvdata(hdev); \ | |
5d7e7d47 EH |
829 | \ |
830 | return wacom_luminance_store(wacom, &wacom->led.field, \ | |
831 | buf, count); \ | |
832 | } \ | |
833 | static DEVICE_ATTR(name##_luminance, S_IWUSR, \ | |
834 | NULL, wacom_##name##_luminance_store) | |
835 | ||
836 | DEVICE_LUMINANCE_ATTR(status0, llv); | |
837 | DEVICE_LUMINANCE_ATTR(status1, hlv); | |
838 | DEVICE_LUMINANCE_ATTR(buttons, img_lum); | |
839 | ||
840 | static ssize_t wacom_button_image_store(struct device *dev, int button_id, | |
841 | const char *buf, size_t count) | |
842 | { | |
29b47391 BT |
843 | struct hid_device *hdev = dev_get_drvdata(dev); |
844 | struct wacom *wacom = hid_get_drvdata(hdev); | |
5d7e7d47 EH |
845 | int err; |
846 | ||
847 | if (count != 1024) | |
848 | return -EINVAL; | |
849 | ||
850 | mutex_lock(&wacom->lock); | |
851 | ||
852 | err = wacom_led_putimage(wacom, button_id, buf); | |
853 | ||
854 | mutex_unlock(&wacom->lock); | |
855 | ||
856 | return err < 0 ? err : count; | |
857 | } | |
858 | ||
859 | #define DEVICE_BTNIMG_ATTR(BUTTON_ID) \ | |
860 | static ssize_t wacom_btnimg##BUTTON_ID##_store(struct device *dev, \ | |
861 | struct device_attribute *attr, const char *buf, size_t count) \ | |
862 | { \ | |
863 | return wacom_button_image_store(dev, BUTTON_ID, buf, count); \ | |
864 | } \ | |
865 | static DEVICE_ATTR(button##BUTTON_ID##_rawimg, S_IWUSR, \ | |
866 | NULL, wacom_btnimg##BUTTON_ID##_store) | |
867 | ||
868 | DEVICE_BTNIMG_ATTR(0); | |
869 | DEVICE_BTNIMG_ATTR(1); | |
870 | DEVICE_BTNIMG_ATTR(2); | |
871 | DEVICE_BTNIMG_ATTR(3); | |
872 | DEVICE_BTNIMG_ATTR(4); | |
873 | DEVICE_BTNIMG_ATTR(5); | |
874 | DEVICE_BTNIMG_ATTR(6); | |
875 | DEVICE_BTNIMG_ATTR(7); | |
876 | ||
09e7d941 PC |
877 | static struct attribute *cintiq_led_attrs[] = { |
878 | &dev_attr_status_led0_select.attr, | |
879 | &dev_attr_status_led1_select.attr, | |
880 | NULL | |
881 | }; | |
882 | ||
883 | static struct attribute_group cintiq_led_attr_group = { | |
884 | .name = "wacom_led", | |
885 | .attrs = cintiq_led_attrs, | |
886 | }; | |
887 | ||
888 | static struct attribute *intuos4_led_attrs[] = { | |
5d7e7d47 EH |
889 | &dev_attr_status0_luminance.attr, |
890 | &dev_attr_status1_luminance.attr, | |
09e7d941 | 891 | &dev_attr_status_led0_select.attr, |
5d7e7d47 EH |
892 | &dev_attr_buttons_luminance.attr, |
893 | &dev_attr_button0_rawimg.attr, | |
894 | &dev_attr_button1_rawimg.attr, | |
895 | &dev_attr_button2_rawimg.attr, | |
896 | &dev_attr_button3_rawimg.attr, | |
897 | &dev_attr_button4_rawimg.attr, | |
898 | &dev_attr_button5_rawimg.attr, | |
899 | &dev_attr_button6_rawimg.attr, | |
900 | &dev_attr_button7_rawimg.attr, | |
901 | NULL | |
902 | }; | |
903 | ||
09e7d941 | 904 | static struct attribute_group intuos4_led_attr_group = { |
5d7e7d47 | 905 | .name = "wacom_led", |
09e7d941 | 906 | .attrs = intuos4_led_attrs, |
5d7e7d47 EH |
907 | }; |
908 | ||
9b5b95dd JG |
909 | static struct attribute *intuos5_led_attrs[] = { |
910 | &dev_attr_status0_luminance.attr, | |
911 | &dev_attr_status_led0_select.attr, | |
912 | NULL | |
913 | }; | |
914 | ||
915 | static struct attribute_group intuos5_led_attr_group = { | |
916 | .name = "wacom_led", | |
917 | .attrs = intuos5_led_attrs, | |
918 | }; | |
919 | ||
5d7e7d47 EH |
920 | static int wacom_initialize_leds(struct wacom *wacom) |
921 | { | |
922 | int error; | |
923 | ||
09e7d941 PC |
924 | /* Initialize default values */ |
925 | switch (wacom->wacom_wac.features.type) { | |
a19fc986 | 926 | case INTUOS4S: |
09e7d941 PC |
927 | case INTUOS4: |
928 | case INTUOS4L: | |
929 | wacom->led.select[0] = 0; | |
930 | wacom->led.select[1] = 0; | |
f4fa9a6d | 931 | wacom->led.llv = 10; |
5d7e7d47 EH |
932 | wacom->led.hlv = 20; |
933 | wacom->led.img_lum = 10; | |
09e7d941 PC |
934 | error = sysfs_create_group(&wacom->intf->dev.kobj, |
935 | &intuos4_led_attr_group); | |
936 | break; | |
937 | ||
246835fc | 938 | case WACOM_24HD: |
09e7d941 PC |
939 | case WACOM_21UX2: |
940 | wacom->led.select[0] = 0; | |
941 | wacom->led.select[1] = 0; | |
942 | wacom->led.llv = 0; | |
943 | wacom->led.hlv = 0; | |
944 | wacom->led.img_lum = 0; | |
5d7e7d47 EH |
945 | |
946 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
09e7d941 PC |
947 | &cintiq_led_attr_group); |
948 | break; | |
949 | ||
9b5b95dd JG |
950 | case INTUOS5S: |
951 | case INTUOS5: | |
952 | case INTUOS5L: | |
9a35c411 PC |
953 | case INTUOSPS: |
954 | case INTUOSPM: | |
955 | case INTUOSPL: | |
c2b0c273 PC |
956 | if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) { |
957 | wacom->led.select[0] = 0; | |
958 | wacom->led.select[1] = 0; | |
959 | wacom->led.llv = 32; | |
960 | wacom->led.hlv = 0; | |
961 | wacom->led.img_lum = 0; | |
962 | ||
963 | error = sysfs_create_group(&wacom->intf->dev.kobj, | |
964 | &intuos5_led_attr_group); | |
965 | } else | |
966 | return 0; | |
9b5b95dd JG |
967 | break; |
968 | ||
09e7d941 PC |
969 | default: |
970 | return 0; | |
5d7e7d47 EH |
971 | } |
972 | ||
09e7d941 PC |
973 | if (error) { |
974 | dev_err(&wacom->intf->dev, | |
975 | "cannot create sysfs group err: %d\n", error); | |
976 | return error; | |
977 | } | |
978 | wacom_led_control(wacom); | |
979 | ||
5d7e7d47 EH |
980 | return 0; |
981 | } | |
982 | ||
983 | static void wacom_destroy_leds(struct wacom *wacom) | |
984 | { | |
09e7d941 | 985 | switch (wacom->wacom_wac.features.type) { |
a19fc986 | 986 | case INTUOS4S: |
09e7d941 PC |
987 | case INTUOS4: |
988 | case INTUOS4L: | |
5d7e7d47 | 989 | sysfs_remove_group(&wacom->intf->dev.kobj, |
09e7d941 PC |
990 | &intuos4_led_attr_group); |
991 | break; | |
992 | ||
246835fc | 993 | case WACOM_24HD: |
09e7d941 PC |
994 | case WACOM_21UX2: |
995 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
996 | &cintiq_led_attr_group); | |
997 | break; | |
9b5b95dd JG |
998 | |
999 | case INTUOS5S: | |
1000 | case INTUOS5: | |
1001 | case INTUOS5L: | |
9a35c411 PC |
1002 | case INTUOSPS: |
1003 | case INTUOSPM: | |
1004 | case INTUOSPL: | |
c2b0c273 PC |
1005 | if (wacom->wacom_wac.features.device_type == BTN_TOOL_PEN) |
1006 | sysfs_remove_group(&wacom->intf->dev.kobj, | |
1007 | &intuos5_led_attr_group); | |
9b5b95dd | 1008 | break; |
5d7e7d47 EH |
1009 | } |
1010 | } | |
1011 | ||
a1d552cc | 1012 | static enum power_supply_property wacom_battery_props[] = { |
6e2a6e80 | 1013 | POWER_SUPPLY_PROP_SCOPE, |
a1d552cc CB |
1014 | POWER_SUPPLY_PROP_CAPACITY |
1015 | }; | |
1016 | ||
1017 | static int wacom_battery_get_property(struct power_supply *psy, | |
1018 | enum power_supply_property psp, | |
1019 | union power_supply_propval *val) | |
1020 | { | |
1021 | struct wacom *wacom = container_of(psy, struct wacom, battery); | |
1022 | int ret = 0; | |
1023 | ||
1024 | switch (psp) { | |
6e2a6e80 BN |
1025 | case POWER_SUPPLY_PROP_SCOPE: |
1026 | val->intval = POWER_SUPPLY_SCOPE_DEVICE; | |
1027 | break; | |
a1d552cc CB |
1028 | case POWER_SUPPLY_PROP_CAPACITY: |
1029 | val->intval = | |
1030 | wacom->wacom_wac.battery_capacity * 100 / 31; | |
1031 | break; | |
1032 | default: | |
1033 | ret = -EINVAL; | |
1034 | break; | |
1035 | } | |
1036 | ||
1037 | return ret; | |
1038 | } | |
1039 | ||
1040 | static int wacom_initialize_battery(struct wacom *wacom) | |
1041 | { | |
1042 | int error = 0; | |
1043 | ||
1044 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR) { | |
1045 | wacom->battery.properties = wacom_battery_props; | |
1046 | wacom->battery.num_properties = ARRAY_SIZE(wacom_battery_props); | |
1047 | wacom->battery.get_property = wacom_battery_get_property; | |
1048 | wacom->battery.name = "wacom_battery"; | |
1049 | wacom->battery.type = POWER_SUPPLY_TYPE_BATTERY; | |
1050 | wacom->battery.use_for_apm = 0; | |
1051 | ||
1052 | error = power_supply_register(&wacom->usbdev->dev, | |
1053 | &wacom->battery); | |
b7af2bb8 CB |
1054 | |
1055 | if (!error) | |
1056 | power_supply_powers(&wacom->battery, | |
1057 | &wacom->usbdev->dev); | |
a1d552cc CB |
1058 | } |
1059 | ||
1060 | return error; | |
1061 | } | |
1062 | ||
1063 | static void wacom_destroy_battery(struct wacom *wacom) | |
1064 | { | |
b7af2bb8 CB |
1065 | if (wacom->wacom_wac.features.quirks & WACOM_QUIRK_MONITOR && |
1066 | wacom->battery.dev) { | |
a1d552cc | 1067 | power_supply_unregister(&wacom->battery); |
b7af2bb8 CB |
1068 | wacom->battery.dev = NULL; |
1069 | } | |
a1d552cc CB |
1070 | } |
1071 | ||
d2d13f18 | 1072 | static struct input_dev *wacom_allocate_input(struct wacom *wacom) |
3aac0ef1 CB |
1073 | { |
1074 | struct input_dev *input_dev; | |
1075 | struct usb_interface *intf = wacom->intf; | |
1076 | struct usb_device *dev = interface_to_usbdev(intf); | |
1077 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
3aac0ef1 CB |
1078 | |
1079 | input_dev = input_allocate_device(); | |
d2d13f18 BT |
1080 | if (!input_dev) |
1081 | return NULL; | |
3aac0ef1 CB |
1082 | |
1083 | input_dev->name = wacom_wac->name; | |
7097d4cb | 1084 | input_dev->phys = wacom->phys; |
3aac0ef1 CB |
1085 | input_dev->dev.parent = &intf->dev; |
1086 | input_dev->open = wacom_open; | |
1087 | input_dev->close = wacom_close; | |
1088 | usb_to_input_id(dev, &input_dev->id); | |
1089 | input_set_drvdata(input_dev, wacom); | |
1090 | ||
d2d13f18 BT |
1091 | return input_dev; |
1092 | } | |
1093 | ||
008f4d9e BT |
1094 | static void wacom_unregister_inputs(struct wacom *wacom) |
1095 | { | |
1096 | if (wacom->wacom_wac.input) | |
1097 | input_unregister_device(wacom->wacom_wac.input); | |
1098 | if (wacom->wacom_wac.pad_input) | |
1099 | input_unregister_device(wacom->wacom_wac.pad_input); | |
1100 | wacom->wacom_wac.input = NULL; | |
1101 | wacom->wacom_wac.pad_input = NULL; | |
1102 | } | |
1103 | ||
1104 | static int wacom_register_inputs(struct wacom *wacom) | |
d2d13f18 BT |
1105 | { |
1106 | struct input_dev *input_dev, *pad_input_dev; | |
1107 | struct wacom_wac *wacom_wac = &(wacom->wacom_wac); | |
1108 | int error; | |
1109 | ||
1110 | input_dev = wacom_allocate_input(wacom); | |
1111 | pad_input_dev = wacom_allocate_input(wacom); | |
1112 | if (!input_dev || !pad_input_dev) { | |
1113 | error = -ENOMEM; | |
1114 | goto fail1; | |
1115 | } | |
1116 | ||
3aac0ef1 | 1117 | wacom_wac->input = input_dev; |
d2d13f18 BT |
1118 | wacom_wac->pad_input = pad_input_dev; |
1119 | wacom_wac->pad_input->name = wacom_wac->pad_name; | |
1120 | ||
1963518b PC |
1121 | error = wacom_setup_input_capabilities(input_dev, wacom_wac); |
1122 | if (error) | |
d2d13f18 | 1123 | goto fail2; |
3aac0ef1 CB |
1124 | |
1125 | error = input_register_device(input_dev); | |
1963518b PC |
1126 | if (error) |
1127 | goto fail2; | |
1128 | ||
d2d13f18 BT |
1129 | error = wacom_setup_pad_input_capabilities(pad_input_dev, wacom_wac); |
1130 | if (error) { | |
1131 | /* no pad in use on this interface */ | |
1132 | input_free_device(pad_input_dev); | |
1133 | wacom_wac->pad_input = NULL; | |
1134 | pad_input_dev = NULL; | |
1135 | } else { | |
1136 | error = input_register_device(pad_input_dev); | |
1137 | if (error) | |
1138 | goto fail3; | |
1139 | } | |
1140 | ||
1963518b | 1141 | return 0; |
3aac0ef1 | 1142 | |
d2d13f18 BT |
1143 | fail3: |
1144 | input_unregister_device(input_dev); | |
1145 | input_dev = NULL; | |
1963518b | 1146 | fail2: |
1963518b | 1147 | wacom_wac->input = NULL; |
d2d13f18 | 1148 | wacom_wac->pad_input = NULL; |
1963518b | 1149 | fail1: |
d2d13f18 BT |
1150 | if (input_dev) |
1151 | input_free_device(input_dev); | |
1152 | if (pad_input_dev) | |
1153 | input_free_device(pad_input_dev); | |
3aac0ef1 CB |
1154 | return error; |
1155 | } | |
1156 | ||
16bf288c CB |
1157 | static void wacom_wireless_work(struct work_struct *work) |
1158 | { | |
1159 | struct wacom *wacom = container_of(work, struct wacom, work); | |
1160 | struct usb_device *usbdev = wacom->usbdev; | |
1161 | struct wacom_wac *wacom_wac = &wacom->wacom_wac; | |
29b47391 | 1162 | struct hid_device *hdev1, *hdev2; |
b7af2bb8 CB |
1163 | struct wacom *wacom1, *wacom2; |
1164 | struct wacom_wac *wacom_wac1, *wacom_wac2; | |
1165 | int error; | |
16bf288c CB |
1166 | |
1167 | /* | |
1168 | * Regardless if this is a disconnect or a new tablet, | |
b7af2bb8 | 1169 | * remove any existing input and battery devices. |
16bf288c CB |
1170 | */ |
1171 | ||
b7af2bb8 CB |
1172 | wacom_destroy_battery(wacom); |
1173 | ||
16bf288c | 1174 | /* Stylus interface */ |
29b47391 BT |
1175 | hdev1 = usb_get_intfdata(usbdev->config->interface[1]); |
1176 | wacom1 = hid_get_drvdata(hdev1); | |
b7af2bb8 | 1177 | wacom_wac1 = &(wacom1->wacom_wac); |
008f4d9e | 1178 | wacom_unregister_inputs(wacom1); |
16bf288c CB |
1179 | |
1180 | /* Touch interface */ | |
29b47391 BT |
1181 | hdev2 = usb_get_intfdata(usbdev->config->interface[2]); |
1182 | wacom2 = hid_get_drvdata(hdev2); | |
b7af2bb8 | 1183 | wacom_wac2 = &(wacom2->wacom_wac); |
008f4d9e | 1184 | wacom_unregister_inputs(wacom2); |
16bf288c CB |
1185 | |
1186 | if (wacom_wac->pid == 0) { | |
eb71d1bb | 1187 | dev_info(&wacom->intf->dev, "wireless tablet disconnected\n"); |
16bf288c | 1188 | } else { |
29b47391 | 1189 | const struct hid_device_id *id = wacom_ids; |
16bf288c | 1190 | |
eb71d1bb DT |
1191 | dev_info(&wacom->intf->dev, |
1192 | "wireless tablet connected with PID %x\n", | |
1193 | wacom_wac->pid); | |
16bf288c | 1194 | |
29b47391 BT |
1195 | while (id->bus) { |
1196 | if (id->vendor == USB_VENDOR_ID_WACOM && | |
1197 | id->product == wacom_wac->pid) | |
16bf288c CB |
1198 | break; |
1199 | id++; | |
1200 | } | |
1201 | ||
29b47391 | 1202 | if (!id->bus) { |
eb71d1bb DT |
1203 | dev_info(&wacom->intf->dev, |
1204 | "ignoring unknown PID.\n"); | |
16bf288c CB |
1205 | return; |
1206 | } | |
1207 | ||
1208 | /* Stylus interface */ | |
b7af2bb8 | 1209 | wacom_wac1->features = |
29b47391 | 1210 | *((struct wacom_features *)id->driver_data); |
b7af2bb8 | 1211 | wacom_wac1->features.device_type = BTN_TOOL_PEN; |
57bcfce3 PC |
1212 | snprintf(wacom_wac1->name, WACOM_NAME_MAX, "%s (WL) Pen", |
1213 | wacom_wac1->features.name); | |
008f4d9e BT |
1214 | snprintf(wacom_wac1->pad_name, WACOM_NAME_MAX, "%s (WL) Pad", |
1215 | wacom_wac1->features.name); | |
961794a0 PC |
1216 | wacom_wac1->shared->touch_max = wacom_wac1->features.touch_max; |
1217 | wacom_wac1->shared->type = wacom_wac1->features.type; | |
008f4d9e | 1218 | error = wacom_register_inputs(wacom1); |
b7af2bb8 | 1219 | if (error) |
57bcfce3 | 1220 | goto fail; |
16bf288c CB |
1221 | |
1222 | /* Touch interface */ | |
b5fd2a3e PC |
1223 | if (wacom_wac1->features.touch_max || |
1224 | wacom_wac1->features.type == INTUOSHT) { | |
57bcfce3 | 1225 | wacom_wac2->features = |
29b47391 | 1226 | *((struct wacom_features *)id->driver_data); |
57bcfce3 PC |
1227 | wacom_wac2->features.pktlen = WACOM_PKGLEN_BBTOUCH3; |
1228 | wacom_wac2->features.device_type = BTN_TOOL_FINGER; | |
1229 | wacom_wac2->features.x_max = wacom_wac2->features.y_max = 4096; | |
1230 | if (wacom_wac2->features.touch_max) | |
1231 | snprintf(wacom_wac2->name, WACOM_NAME_MAX, | |
1232 | "%s (WL) Finger",wacom_wac2->features.name); | |
1233 | else | |
1234 | snprintf(wacom_wac2->name, WACOM_NAME_MAX, | |
1235 | "%s (WL) Pad",wacom_wac2->features.name); | |
008f4d9e BT |
1236 | snprintf(wacom_wac2->pad_name, WACOM_NAME_MAX, |
1237 | "%s (WL) Pad", wacom_wac2->features.name); | |
1238 | error = wacom_register_inputs(wacom2); | |
57bcfce3 PC |
1239 | if (error) |
1240 | goto fail; | |
961794a0 PC |
1241 | |
1242 | if (wacom_wac1->features.type == INTUOSHT && | |
1243 | wacom_wac1->features.touch_max) | |
1244 | wacom_wac->shared->touch_input = wacom_wac2->input; | |
57bcfce3 | 1245 | } |
b7af2bb8 CB |
1246 | |
1247 | error = wacom_initialize_battery(wacom); | |
1248 | if (error) | |
57bcfce3 | 1249 | goto fail; |
16bf288c | 1250 | } |
b7af2bb8 CB |
1251 | |
1252 | return; | |
1253 | ||
57bcfce3 | 1254 | fail: |
008f4d9e BT |
1255 | wacom_unregister_inputs(wacom1); |
1256 | wacom_unregister_inputs(wacom2); | |
b7af2bb8 | 1257 | return; |
16bf288c CB |
1258 | } |
1259 | ||
401d7d10 PC |
1260 | /* |
1261 | * Not all devices report physical dimensions from HID. | |
1262 | * Compute the default from hardcoded logical dimension | |
1263 | * and resolution before driver overwrites them. | |
1264 | */ | |
1265 | static void wacom_set_default_phy(struct wacom_features *features) | |
1266 | { | |
1267 | if (features->x_resolution) { | |
1268 | features->x_phy = (features->x_max * 100) / | |
1269 | features->x_resolution; | |
1270 | features->y_phy = (features->y_max * 100) / | |
1271 | features->y_resolution; | |
1272 | } | |
1273 | } | |
1274 | ||
1275 | static void wacom_calculate_res(struct wacom_features *features) | |
1276 | { | |
1277 | features->x_resolution = wacom_calc_hid_res(features->x_max, | |
1278 | features->x_phy, | |
1279 | features->unit, | |
1280 | features->unitExpo); | |
1281 | features->y_resolution = wacom_calc_hid_res(features->y_max, | |
1282 | features->y_phy, | |
1283 | features->unit, | |
1284 | features->unitExpo); | |
1285 | } | |
1286 | ||
29b47391 BT |
1287 | static int wacom_probe(struct hid_device *hdev, |
1288 | const struct hid_device_id *id) | |
3bea733a | 1289 | { |
29b47391 | 1290 | struct usb_interface *intf = to_usb_interface(hdev->dev.parent); |
3bea733a PC |
1291 | struct usb_device *dev = interface_to_usbdev(intf); |
1292 | struct usb_endpoint_descriptor *endpoint; | |
1293 | struct wacom *wacom; | |
1294 | struct wacom_wac *wacom_wac; | |
e33da8a5 | 1295 | struct wacom_features *features; |
e33da8a5 | 1296 | int error; |
3bea733a | 1297 | |
29b47391 | 1298 | if (!id->driver_data) |
b036f6fb BB |
1299 | return -EINVAL; |
1300 | ||
3bea733a | 1301 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); |
f1823940 DC |
1302 | if (!wacom) |
1303 | return -ENOMEM; | |
e33da8a5 | 1304 | |
29b47391 BT |
1305 | hid_set_drvdata(hdev, wacom); |
1306 | wacom->hdev = hdev; | |
1307 | ||
51269fe8 | 1308 | wacom_wac = &wacom->wacom_wac; |
29b47391 | 1309 | wacom_wac->features = *((struct wacom_features *)id->driver_data); |
e33da8a5 JC |
1310 | features = &wacom_wac->features; |
1311 | if (features->pktlen > WACOM_PKGLEN_MAX) { | |
1312 | error = -EINVAL; | |
3bea733a | 1313 | goto fail1; |
e33da8a5 | 1314 | } |
3bea733a | 1315 | |
29b47391 BT |
1316 | if (features->check_for_hid_type && features->hid_type != hdev->type) { |
1317 | error = -ENODEV; | |
3bea733a | 1318 | goto fail1; |
e33da8a5 | 1319 | } |
3bea733a | 1320 | |
3bea733a | 1321 | wacom->usbdev = dev; |
e7224094 ON |
1322 | wacom->intf = intf; |
1323 | mutex_init(&wacom->lock); | |
16bf288c | 1324 | INIT_WORK(&wacom->work, wacom_wireless_work); |
3bea733a PC |
1325 | usb_make_path(dev, wacom->phys, sizeof(wacom->phys)); |
1326 | strlcat(wacom->phys, "/input0", sizeof(wacom->phys)); | |
1327 | ||
545f4e99 PC |
1328 | endpoint = &intf->cur_altsetting->endpoint[0].desc; |
1329 | ||
401d7d10 PC |
1330 | /* set the default size in case we do not get them from hid */ |
1331 | wacom_set_default_phy(features); | |
1332 | ||
f393ee2b | 1333 | /* Retrieve the physical and logical size for touch devices */ |
ec67bbed PC |
1334 | error = wacom_retrieve_hid_descriptor(intf, features); |
1335 | if (error) | |
29b47391 | 1336 | goto fail1; |
545f4e99 | 1337 | |
ae584ca4 JG |
1338 | /* |
1339 | * Intuos5 has no useful data about its touch interface in its | |
1340 | * HID descriptor. If this is the touch interface (wMaxPacketSize | |
1341 | * of WACOM_PKGLEN_BBTOUCH3), override the table values. | |
1342 | */ | |
b5fd2a3e | 1343 | if (features->type >= INTUOS5S && features->type <= INTUOSHT) { |
ae584ca4 JG |
1344 | if (endpoint->wMaxPacketSize == WACOM_PKGLEN_BBTOUCH3) { |
1345 | features->device_type = BTN_TOOL_FINGER; | |
1346 | features->pktlen = WACOM_PKGLEN_BBTOUCH3; | |
1347 | ||
ae584ca4 JG |
1348 | features->x_max = 4096; |
1349 | features->y_max = 4096; | |
1350 | } else { | |
1351 | features->device_type = BTN_TOOL_PEN; | |
1352 | } | |
1353 | } | |
1354 | ||
bc73dd39 HR |
1355 | wacom_setup_device_quirks(features); |
1356 | ||
401d7d10 PC |
1357 | /* set unit to "100th of a mm" for devices not reported by HID */ |
1358 | if (!features->unit) { | |
1359 | features->unit = 0x11; | |
1360 | features->unitExpo = 16 - 3; | |
1361 | } | |
1362 | wacom_calculate_res(features); | |
1363 | ||
49b764ae | 1364 | strlcpy(wacom_wac->name, features->name, sizeof(wacom_wac->name)); |
d2d13f18 BT |
1365 | snprintf(wacom_wac->pad_name, sizeof(wacom_wac->pad_name), |
1366 | "%s Pad", features->name); | |
49b764ae | 1367 | |
bc73dd39 | 1368 | if (features->quirks & WACOM_QUIRK_MULTI_INPUT) { |
aea2bf6a JG |
1369 | struct usb_device *other_dev; |
1370 | ||
49b764ae | 1371 | /* Append the device type to the name */ |
57bcfce3 PC |
1372 | if (features->device_type != BTN_TOOL_FINGER) |
1373 | strlcat(wacom_wac->name, " Pen", WACOM_NAME_MAX); | |
1374 | else if (features->touch_max) | |
1375 | strlcat(wacom_wac->name, " Finger", WACOM_NAME_MAX); | |
1376 | else | |
1377 | strlcat(wacom_wac->name, " Pad", WACOM_NAME_MAX); | |
4492efff | 1378 | |
aea2bf6a JG |
1379 | other_dev = wacom_get_sibling(dev, features->oVid, features->oPid); |
1380 | if (other_dev == NULL || wacom_get_usbdev_data(other_dev) == NULL) | |
1381 | other_dev = dev; | |
1382 | error = wacom_add_shared_data(wacom_wac, other_dev); | |
4492efff | 1383 | if (error) |
29b47391 | 1384 | goto fail1; |
49b764ae PC |
1385 | } |
1386 | ||
5d7e7d47 | 1387 | error = wacom_initialize_leds(wacom); |
5014186d | 1388 | if (error) |
29b47391 | 1389 | goto fail2; |
3bea733a | 1390 | |
d3825d51 | 1391 | if (!(features->quirks & WACOM_QUIRK_NO_INPUT)) { |
008f4d9e | 1392 | error = wacom_register_inputs(wacom); |
d3825d51 | 1393 | if (error) |
29b47391 | 1394 | goto fail3; |
d3825d51 | 1395 | } |
5d7e7d47 | 1396 | |
ec67bbed PC |
1397 | /* Note that if query fails it is not a hard failure */ |
1398 | wacom_query_tablet_data(intf, features); | |
3bea733a | 1399 | |
29b47391 BT |
1400 | /* Regular HID work starts now */ |
1401 | error = hid_parse(hdev); | |
1402 | if (error) { | |
1403 | hid_err(hdev, "parse failed\n"); | |
1404 | goto fail4; | |
1405 | } | |
d3825d51 | 1406 | |
29b47391 BT |
1407 | error = hid_hw_start(hdev, HID_CONNECT_HIDRAW); |
1408 | if (error) { | |
1409 | hid_err(hdev, "hw start failed\n"); | |
1410 | goto fail4; | |
d3825d51 | 1411 | } |
961794a0 | 1412 | |
29b47391 BT |
1413 | if (features->quirks & WACOM_QUIRK_MONITOR) |
1414 | error = hid_hw_open(hdev); | |
1415 | ||
961794a0 PC |
1416 | if (wacom_wac->features.type == INTUOSHT && wacom_wac->features.touch_max) { |
1417 | if (wacom_wac->features.device_type == BTN_TOOL_FINGER) | |
1418 | wacom_wac->shared->touch_input = wacom_wac->input; | |
1419 | } | |
1420 | ||
3bea733a PC |
1421 | return 0; |
1422 | ||
29b47391 BT |
1423 | fail4: wacom_unregister_inputs(wacom); |
1424 | fail3: wacom_destroy_leds(wacom); | |
1425 | fail2: wacom_remove_shared_data(wacom_wac); | |
3aac0ef1 | 1426 | fail1: kfree(wacom); |
29b47391 | 1427 | hid_set_drvdata(hdev, NULL); |
5014186d | 1428 | return error; |
3bea733a PC |
1429 | } |
1430 | ||
29b47391 | 1431 | static void wacom_remove(struct hid_device *hdev) |
3bea733a | 1432 | { |
29b47391 | 1433 | struct wacom *wacom = hid_get_drvdata(hdev); |
3bea733a | 1434 | |
29b47391 | 1435 | hid_hw_stop(hdev); |
e7224094 | 1436 | |
16bf288c | 1437 | cancel_work_sync(&wacom->work); |
008f4d9e | 1438 | wacom_unregister_inputs(wacom); |
a1d552cc | 1439 | wacom_destroy_battery(wacom); |
5d7e7d47 | 1440 | wacom_destroy_leds(wacom); |
51269fe8 | 1441 | wacom_remove_shared_data(&wacom->wacom_wac); |
e7224094 | 1442 | |
29b47391 BT |
1443 | hid_set_drvdata(hdev, NULL); |
1444 | kfree(wacom); | |
e7224094 ON |
1445 | } |
1446 | ||
29b47391 | 1447 | static int wacom_resume(struct hid_device *hdev) |
e7224094 | 1448 | { |
29b47391 | 1449 | struct wacom *wacom = hid_get_drvdata(hdev); |
51269fe8 | 1450 | struct wacom_features *features = &wacom->wacom_wac.features; |
e7224094 ON |
1451 | |
1452 | mutex_lock(&wacom->lock); | |
38101475 PC |
1453 | |
1454 | /* switch to wacom mode first */ | |
29b47391 | 1455 | wacom_query_tablet_data(wacom->intf, features); |
5d7e7d47 | 1456 | wacom_led_control(wacom); |
38101475 | 1457 | |
e7224094 ON |
1458 | mutex_unlock(&wacom->lock); |
1459 | ||
29b47391 | 1460 | return 0; |
e7224094 ON |
1461 | } |
1462 | ||
29b47391 | 1463 | static int wacom_reset_resume(struct hid_device *hdev) |
e7224094 | 1464 | { |
29b47391 | 1465 | return wacom_resume(hdev); |
3bea733a PC |
1466 | } |
1467 | ||
29b47391 | 1468 | static struct hid_driver wacom_driver = { |
3bea733a | 1469 | .name = "wacom", |
b036f6fb | 1470 | .id_table = wacom_ids, |
3bea733a | 1471 | .probe = wacom_probe, |
29b47391 BT |
1472 | .remove = wacom_remove, |
1473 | #ifdef CONFIG_PM | |
e7224094 ON |
1474 | .resume = wacom_resume, |
1475 | .reset_resume = wacom_reset_resume, | |
29b47391 BT |
1476 | #endif |
1477 | .raw_event = wacom_raw_event, | |
3bea733a | 1478 | }; |
29b47391 | 1479 | module_hid_driver(wacom_driver); |