tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * HID driver for UC-Logic devices not fully compliant with HID standard
3 *
4 * Copyright (c) 2010-2014 Nikolai Kondrashov
5 * Copyright (c) 2013 Martin Rusko
6 */
7
8/*
9 * This program is free software; you can redistribute it and/or modify it
10 * under the terms of the GNU General Public License as published by the Free
11 * Software Foundation; either version 2 of the License, or (at your option)
12 * any later version.
13 */
14
15#include <linux/device.h>
16#include <linux/hid.h>
17#include <linux/module.h>
18#include <linux/usb.h>
19#include <asm/unaligned.h>
20#include "usbhid/usbhid.h"
21
22#include "hid-ids.h"
23
24/*
25 * See WPXXXXU model descriptions, device and HID report descriptors at
26 * http://sf.net/apps/mediawiki/digimend/?title=UC-Logic_Tablet_WP4030U
27 * http://sf.net/apps/mediawiki/digimend/?title=UC-Logic_Tablet_WP5540U
28 * http://sf.net/apps/mediawiki/digimend/?title=UC-Logic_Tablet_WP8060U
29 */
30
31/* Size of the original descriptor of WPXXXXU tablets */
32#define WPXXXXU_RDESC_ORIG_SIZE 212
33
34/* Fixed WP4030U report descriptor */
35static __u8 wp4030u_rdesc_fixed[] = {
36 0x05, 0x0D, /* Usage Page (Digitizer), */
37 0x09, 0x02, /* Usage (Pen), */
38 0xA1, 0x01, /* Collection (Application), */
39 0x85, 0x09, /* Report ID (9), */
40 0x09, 0x20, /* Usage (Stylus), */
41 0xA0, /* Collection (Physical), */
42 0x75, 0x01, /* Report Size (1), */
43 0x09, 0x42, /* Usage (Tip Switch), */
44 0x09, 0x44, /* Usage (Barrel Switch), */
45 0x09, 0x46, /* Usage (Tablet Pick), */
46 0x14, /* Logical Minimum (0), */
47 0x25, 0x01, /* Logical Maximum (1), */
48 0x95, 0x03, /* Report Count (3), */
49 0x81, 0x02, /* Input (Variable), */
50 0x95, 0x05, /* Report Count (5), */
51 0x81, 0x01, /* Input (Constant), */
52 0x75, 0x10, /* Report Size (16), */
53 0x95, 0x01, /* Report Count (1), */
54 0x14, /* Logical Minimum (0), */
55 0xA4, /* Push, */
56 0x05, 0x01, /* Usage Page (Desktop), */
57 0x55, 0xFD, /* Unit Exponent (-3), */
58 0x65, 0x13, /* Unit (Inch), */
59 0x34, /* Physical Minimum (0), */
60 0x09, 0x30, /* Usage (X), */
61 0x46, 0xA0, 0x0F, /* Physical Maximum (4000), */
62 0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
63 0x81, 0x02, /* Input (Variable), */
64 0x09, 0x31, /* Usage (Y), */
65 0x46, 0xB8, 0x0B, /* Physical Maximum (3000), */
66 0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
67 0x81, 0x02, /* Input (Variable), */
68 0xB4, /* Pop, */
69 0x09, 0x30, /* Usage (Tip Pressure), */
70 0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
71 0x81, 0x02, /* Input (Variable), */
72 0xC0, /* End Collection, */
73 0xC0 /* End Collection */
74};
75
76/* Fixed WP5540U report descriptor */
77static __u8 wp5540u_rdesc_fixed[] = {
78 0x05, 0x0D, /* Usage Page (Digitizer), */
79 0x09, 0x02, /* Usage (Pen), */
80 0xA1, 0x01, /* Collection (Application), */
81 0x85, 0x09, /* Report ID (9), */
82 0x09, 0x20, /* Usage (Stylus), */
83 0xA0, /* Collection (Physical), */
84 0x75, 0x01, /* Report Size (1), */
85 0x09, 0x42, /* Usage (Tip Switch), */
86 0x09, 0x44, /* Usage (Barrel Switch), */
87 0x09, 0x46, /* Usage (Tablet Pick), */
88 0x14, /* Logical Minimum (0), */
89 0x25, 0x01, /* Logical Maximum (1), */
90 0x95, 0x03, /* Report Count (3), */
91 0x81, 0x02, /* Input (Variable), */
92 0x95, 0x05, /* Report Count (5), */
93 0x81, 0x01, /* Input (Constant), */
94 0x75, 0x10, /* Report Size (16), */
95 0x95, 0x01, /* Report Count (1), */
96 0x14, /* Logical Minimum (0), */
97 0xA4, /* Push, */
98 0x05, 0x01, /* Usage Page (Desktop), */
99 0x55, 0xFD, /* Unit Exponent (-3), */
100 0x65, 0x13, /* Unit (Inch), */
101 0x34, /* Physical Minimum (0), */
102 0x09, 0x30, /* Usage (X), */
103 0x46, 0x7C, 0x15, /* Physical Maximum (5500), */
104 0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
105 0x81, 0x02, /* Input (Variable), */
106 0x09, 0x31, /* Usage (Y), */
107 0x46, 0xA0, 0x0F, /* Physical Maximum (4000), */
108 0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
109 0x81, 0x02, /* Input (Variable), */
110 0xB4, /* Pop, */
111 0x09, 0x30, /* Usage (Tip Pressure), */
112 0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
113 0x81, 0x02, /* Input (Variable), */
114 0xC0, /* End Collection, */
115 0xC0, /* End Collection, */
116 0x05, 0x01, /* Usage Page (Desktop), */
117 0x09, 0x02, /* Usage (Mouse), */
118 0xA1, 0x01, /* Collection (Application), */
119 0x85, 0x08, /* Report ID (8), */
120 0x09, 0x01, /* Usage (Pointer), */
121 0xA0, /* Collection (Physical), */
122 0x75, 0x01, /* Report Size (1), */
123 0x05, 0x09, /* Usage Page (Button), */
124 0x19, 0x01, /* Usage Minimum (01h), */
125 0x29, 0x03, /* Usage Maximum (03h), */
126 0x14, /* Logical Minimum (0), */
127 0x25, 0x01, /* Logical Maximum (1), */
128 0x95, 0x03, /* Report Count (3), */
129 0x81, 0x02, /* Input (Variable), */
130 0x95, 0x05, /* Report Count (5), */
131 0x81, 0x01, /* Input (Constant), */
132 0x05, 0x01, /* Usage Page (Desktop), */
133 0x75, 0x08, /* Report Size (8), */
134 0x09, 0x30, /* Usage (X), */
135 0x09, 0x31, /* Usage (Y), */
136 0x15, 0x81, /* Logical Minimum (-127), */
137 0x25, 0x7F, /* Logical Maximum (127), */
138 0x95, 0x02, /* Report Count (2), */
139 0x81, 0x06, /* Input (Variable, Relative), */
140 0x09, 0x38, /* Usage (Wheel), */
141 0x15, 0xFF, /* Logical Minimum (-1), */
142 0x25, 0x01, /* Logical Maximum (1), */
143 0x95, 0x01, /* Report Count (1), */
144 0x81, 0x06, /* Input (Variable, Relative), */
145 0x81, 0x01, /* Input (Constant), */
146 0xC0, /* End Collection, */
147 0xC0 /* End Collection */
148};
149
150/* Fixed WP8060U report descriptor */
151static __u8 wp8060u_rdesc_fixed[] = {
152 0x05, 0x0D, /* Usage Page (Digitizer), */
153 0x09, 0x02, /* Usage (Pen), */
154 0xA1, 0x01, /* Collection (Application), */
155 0x85, 0x09, /* Report ID (9), */
156 0x09, 0x20, /* Usage (Stylus), */
157 0xA0, /* Collection (Physical), */
158 0x75, 0x01, /* Report Size (1), */
159 0x09, 0x42, /* Usage (Tip Switch), */
160 0x09, 0x44, /* Usage (Barrel Switch), */
161 0x09, 0x46, /* Usage (Tablet Pick), */
162 0x14, /* Logical Minimum (0), */
163 0x25, 0x01, /* Logical Maximum (1), */
164 0x95, 0x03, /* Report Count (3), */
165 0x81, 0x02, /* Input (Variable), */
166 0x95, 0x05, /* Report Count (5), */
167 0x81, 0x01, /* Input (Constant), */
168 0x75, 0x10, /* Report Size (16), */
169 0x95, 0x01, /* Report Count (1), */
170 0x14, /* Logical Minimum (0), */
171 0xA4, /* Push, */
172 0x05, 0x01, /* Usage Page (Desktop), */
173 0x55, 0xFD, /* Unit Exponent (-3), */
174 0x65, 0x13, /* Unit (Inch), */
175 0x34, /* Physical Minimum (0), */
176 0x09, 0x30, /* Usage (X), */
177 0x46, 0x40, 0x1F, /* Physical Maximum (8000), */
178 0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
179 0x81, 0x02, /* Input (Variable), */
180 0x09, 0x31, /* Usage (Y), */
181 0x46, 0x70, 0x17, /* Physical Maximum (6000), */
182 0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
183 0x81, 0x02, /* Input (Variable), */
184 0xB4, /* Pop, */
185 0x09, 0x30, /* Usage (Tip Pressure), */
186 0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
187 0x81, 0x02, /* Input (Variable), */
188 0xC0, /* End Collection, */
189 0xC0, /* End Collection, */
190 0x05, 0x01, /* Usage Page (Desktop), */
191 0x09, 0x02, /* Usage (Mouse), */
192 0xA1, 0x01, /* Collection (Application), */
193 0x85, 0x08, /* Report ID (8), */
194 0x09, 0x01, /* Usage (Pointer), */
195 0xA0, /* Collection (Physical), */
196 0x75, 0x01, /* Report Size (1), */
197 0x05, 0x09, /* Usage Page (Button), */
198 0x19, 0x01, /* Usage Minimum (01h), */
199 0x29, 0x03, /* Usage Maximum (03h), */
200 0x14, /* Logical Minimum (0), */
201 0x25, 0x01, /* Logical Maximum (1), */
202 0x95, 0x03, /* Report Count (3), */
203 0x81, 0x02, /* Input (Variable), */
204 0x95, 0x05, /* Report Count (5), */
205 0x81, 0x01, /* Input (Constant), */
206 0x05, 0x01, /* Usage Page (Desktop), */
207 0x75, 0x08, /* Report Size (8), */
208 0x09, 0x30, /* Usage (X), */
209 0x09, 0x31, /* Usage (Y), */
210 0x15, 0x81, /* Logical Minimum (-127), */
211 0x25, 0x7F, /* Logical Maximum (127), */
212 0x95, 0x02, /* Report Count (2), */
213 0x81, 0x06, /* Input (Variable, Relative), */
214 0x09, 0x38, /* Usage (Wheel), */
215 0x15, 0xFF, /* Logical Minimum (-1), */
216 0x25, 0x01, /* Logical Maximum (1), */
217 0x95, 0x01, /* Report Count (1), */
218 0x81, 0x06, /* Input (Variable, Relative), */
219 0x81, 0x01, /* Input (Constant), */
220 0xC0, /* End Collection, */
221 0xC0 /* End Collection */
222};
223
224/*
225 * See WP1062 description, device and HID report descriptors at
226 * http://sf.net/apps/mediawiki/digimend/?title=UC-Logic_Tablet_WP1062
227 */
228
229/* Size of the original descriptor of WP1062 tablet */
230#define WP1062_RDESC_ORIG_SIZE 254
231
232/* Fixed WP1062 report descriptor */
233static __u8 wp1062_rdesc_fixed[] = {
234 0x05, 0x0D, /* Usage Page (Digitizer), */
235 0x09, 0x02, /* Usage (Pen), */
236 0xA1, 0x01, /* Collection (Application), */
237 0x85, 0x09, /* Report ID (9), */
238 0x09, 0x20, /* Usage (Stylus), */
239 0xA0, /* Collection (Physical), */
240 0x75, 0x01, /* Report Size (1), */
241 0x09, 0x42, /* Usage (Tip Switch), */
242 0x09, 0x44, /* Usage (Barrel Switch), */
243 0x09, 0x46, /* Usage (Tablet Pick), */
244 0x14, /* Logical Minimum (0), */
245 0x25, 0x01, /* Logical Maximum (1), */
246 0x95, 0x03, /* Report Count (3), */
247 0x81, 0x02, /* Input (Variable), */
248 0x95, 0x04, /* Report Count (4), */
249 0x81, 0x01, /* Input (Constant), */
250 0x09, 0x32, /* Usage (In Range), */
251 0x95, 0x01, /* Report Count (1), */
252 0x81, 0x02, /* Input (Variable), */
253 0x75, 0x10, /* Report Size (16), */
254 0x95, 0x01, /* Report Count (1), */
255 0x14, /* Logical Minimum (0), */
256 0xA4, /* Push, */
257 0x05, 0x01, /* Usage Page (Desktop), */
258 0x55, 0xFD, /* Unit Exponent (-3), */
259 0x65, 0x13, /* Unit (Inch), */
260 0x34, /* Physical Minimum (0), */
261 0x09, 0x30, /* Usage (X), */
262 0x46, 0x10, 0x27, /* Physical Maximum (10000), */
263 0x26, 0x20, 0x4E, /* Logical Maximum (20000), */
264 0x81, 0x02, /* Input (Variable), */
265 0x09, 0x31, /* Usage (Y), */
266 0x46, 0xB7, 0x19, /* Physical Maximum (6583), */
267 0x26, 0x6E, 0x33, /* Logical Maximum (13166), */
268 0x81, 0x02, /* Input (Variable), */
269 0xB4, /* Pop, */
270 0x09, 0x30, /* Usage (Tip Pressure), */
271 0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
272 0x81, 0x02, /* Input (Variable), */
273 0xC0, /* End Collection, */
274 0xC0 /* End Collection */
275};
276
277/*
278 * See PF1209 description, device and HID report descriptors at
279 * http://sf.net/apps/mediawiki/digimend/?title=UC-Logic_Tablet_PF1209
280 */
281
282/* Size of the original descriptor of PF1209 tablet */
283#define PF1209_RDESC_ORIG_SIZE 234
284
285/* Fixed PF1209 report descriptor */
286static __u8 pf1209_rdesc_fixed[] = {
287 0x05, 0x0D, /* Usage Page (Digitizer), */
288 0x09, 0x02, /* Usage (Pen), */
289 0xA1, 0x01, /* Collection (Application), */
290 0x85, 0x09, /* Report ID (9), */
291 0x09, 0x20, /* Usage (Stylus), */
292 0xA0, /* Collection (Physical), */
293 0x75, 0x01, /* Report Size (1), */
294 0x09, 0x42, /* Usage (Tip Switch), */
295 0x09, 0x44, /* Usage (Barrel Switch), */
296 0x09, 0x46, /* Usage (Tablet Pick), */
297 0x14, /* Logical Minimum (0), */
298 0x25, 0x01, /* Logical Maximum (1), */
299 0x95, 0x03, /* Report Count (3), */
300 0x81, 0x02, /* Input (Variable), */
301 0x95, 0x05, /* Report Count (5), */
302 0x81, 0x01, /* Input (Constant), */
303 0x75, 0x10, /* Report Size (16), */
304 0x95, 0x01, /* Report Count (1), */
305 0x14, /* Logical Minimum (0), */
306 0xA4, /* Push, */
307 0x05, 0x01, /* Usage Page (Desktop), */
308 0x55, 0xFD, /* Unit Exponent (-3), */
309 0x65, 0x13, /* Unit (Inch), */
310 0x34, /* Physical Minimum (0), */
311 0x09, 0x30, /* Usage (X), */
312 0x46, 0xE0, 0x2E, /* Physical Maximum (12000), */
313 0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
314 0x81, 0x02, /* Input (Variable), */
315 0x09, 0x31, /* Usage (Y), */
316 0x46, 0x28, 0x23, /* Physical Maximum (9000), */
317 0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
318 0x81, 0x02, /* Input (Variable), */
319 0xB4, /* Pop, */
320 0x09, 0x30, /* Usage (Tip Pressure), */
321 0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
322 0x81, 0x02, /* Input (Variable), */
323 0xC0, /* End Collection, */
324 0xC0, /* End Collection, */
325 0x05, 0x01, /* Usage Page (Desktop), */
326 0x09, 0x02, /* Usage (Mouse), */
327 0xA1, 0x01, /* Collection (Application), */
328 0x85, 0x08, /* Report ID (8), */
329 0x09, 0x01, /* Usage (Pointer), */
330 0xA0, /* Collection (Physical), */
331 0x75, 0x01, /* Report Size (1), */
332 0x05, 0x09, /* Usage Page (Button), */
333 0x19, 0x01, /* Usage Minimum (01h), */
334 0x29, 0x03, /* Usage Maximum (03h), */
335 0x14, /* Logical Minimum (0), */
336 0x25, 0x01, /* Logical Maximum (1), */
337 0x95, 0x03, /* Report Count (3), */
338 0x81, 0x02, /* Input (Variable), */
339 0x95, 0x05, /* Report Count (5), */
340 0x81, 0x01, /* Input (Constant), */
341 0x05, 0x01, /* Usage Page (Desktop), */
342 0x75, 0x08, /* Report Size (8), */
343 0x09, 0x30, /* Usage (X), */
344 0x09, 0x31, /* Usage (Y), */
345 0x15, 0x81, /* Logical Minimum (-127), */
346 0x25, 0x7F, /* Logical Maximum (127), */
347 0x95, 0x02, /* Report Count (2), */
348 0x81, 0x06, /* Input (Variable, Relative), */
349 0x09, 0x38, /* Usage (Wheel), */
350 0x15, 0xFF, /* Logical Minimum (-1), */
351 0x25, 0x01, /* Logical Maximum (1), */
352 0x95, 0x01, /* Report Count (1), */
353 0x81, 0x06, /* Input (Variable, Relative), */
354 0x81, 0x01, /* Input (Constant), */
355 0xC0, /* End Collection, */
356 0xC0 /* End Collection */
357};
358
359/*
360 * See TWHL850 description, device and HID report descriptors at
361 * http://sf.net/apps/mediawiki/digimend/?title=UC-Logic_Wireless_Tablet_TWHL850
362 */
363
364/* Size of the original descriptors of TWHL850 tablet */
365#define TWHL850_RDESC_ORIG_SIZE0 182
366#define TWHL850_RDESC_ORIG_SIZE1 161
367#define TWHL850_RDESC_ORIG_SIZE2 92
368
369/* Fixed PID 0522 tablet report descriptor, interface 0 (stylus) */
370static __u8 twhl850_rdesc_fixed0[] = {
371 0x05, 0x0D, /* Usage Page (Digitizer), */
372 0x09, 0x02, /* Usage (Pen), */
373 0xA1, 0x01, /* Collection (Application), */
374 0x85, 0x09, /* Report ID (9), */
375 0x09, 0x20, /* Usage (Stylus), */
376 0xA0, /* Collection (Physical), */
377 0x14, /* Logical Minimum (0), */
378 0x25, 0x01, /* Logical Maximum (1), */
379 0x75, 0x01, /* Report Size (1), */
380 0x95, 0x03, /* Report Count (3), */
381 0x09, 0x42, /* Usage (Tip Switch), */
382 0x09, 0x44, /* Usage (Barrel Switch), */
383 0x09, 0x46, /* Usage (Tablet Pick), */
384 0x81, 0x02, /* Input (Variable), */
385 0x81, 0x03, /* Input (Constant, Variable), */
386 0x95, 0x01, /* Report Count (1), */
387 0x09, 0x32, /* Usage (In Range), */
388 0x81, 0x02, /* Input (Variable), */
389 0x81, 0x03, /* Input (Constant, Variable), */
390 0x75, 0x10, /* Report Size (16), */
391 0xA4, /* Push, */
392 0x05, 0x01, /* Usage Page (Desktop), */
393 0x65, 0x13, /* Unit (Inch), */
394 0x55, 0xFD, /* Unit Exponent (-3), */
395 0x34, /* Physical Minimum (0), */
396 0x09, 0x30, /* Usage (X), */
397 0x46, 0x40, 0x1F, /* Physical Maximum (8000), */
398 0x26, 0x00, 0x7D, /* Logical Maximum (32000), */
399 0x81, 0x02, /* Input (Variable), */
400 0x09, 0x31, /* Usage (Y), */
401 0x46, 0x88, 0x13, /* Physical Maximum (5000), */
402 0x26, 0x20, 0x4E, /* Logical Maximum (20000), */
403 0x81, 0x02, /* Input (Variable), */
404 0xB4, /* Pop, */
405 0x09, 0x30, /* Usage (Tip Pressure), */
406 0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
407 0x81, 0x02, /* Input (Variable), */
408 0xC0, /* End Collection, */
409 0xC0 /* End Collection */
410};
411
412/* Fixed PID 0522 tablet report descriptor, interface 1 (mouse) */
413static __u8 twhl850_rdesc_fixed1[] = {
414 0x05, 0x01, /* Usage Page (Desktop), */
415 0x09, 0x02, /* Usage (Mouse), */
416 0xA1, 0x01, /* Collection (Application), */
417 0x85, 0x01, /* Report ID (1), */
418 0x09, 0x01, /* Usage (Pointer), */
419 0xA0, /* Collection (Physical), */
420 0x05, 0x09, /* Usage Page (Button), */
421 0x75, 0x01, /* Report Size (1), */
422 0x95, 0x03, /* Report Count (3), */
423 0x19, 0x01, /* Usage Minimum (01h), */
424 0x29, 0x03, /* Usage Maximum (03h), */
425 0x14, /* Logical Minimum (0), */
426 0x25, 0x01, /* Logical Maximum (1), */
427 0x81, 0x02, /* Input (Variable), */
428 0x95, 0x05, /* Report Count (5), */
429 0x81, 0x03, /* Input (Constant, Variable), */
430 0x05, 0x01, /* Usage Page (Desktop), */
431 0x09, 0x30, /* Usage (X), */
432 0x09, 0x31, /* Usage (Y), */
433 0x16, 0x00, 0x80, /* Logical Minimum (-32768), */
434 0x26, 0xFF, 0x7F, /* Logical Maximum (32767), */
435 0x75, 0x10, /* Report Size (16), */
436 0x95, 0x02, /* Report Count (2), */
437 0x81, 0x06, /* Input (Variable, Relative), */
438 0x09, 0x38, /* Usage (Wheel), */
439 0x15, 0xFF, /* Logical Minimum (-1), */
440 0x25, 0x01, /* Logical Maximum (1), */
441 0x95, 0x01, /* Report Count (1), */
442 0x75, 0x08, /* Report Size (8), */
443 0x81, 0x06, /* Input (Variable, Relative), */
444 0x81, 0x03, /* Input (Constant, Variable), */
445 0xC0, /* End Collection, */
446 0xC0 /* End Collection */
447};
448
449/* Fixed PID 0522 tablet report descriptor, interface 2 (frame buttons) */
450static __u8 twhl850_rdesc_fixed2[] = {
451 0x05, 0x01, /* Usage Page (Desktop), */
452 0x09, 0x06, /* Usage (Keyboard), */
453 0xA1, 0x01, /* Collection (Application), */
454 0x85, 0x03, /* Report ID (3), */
455 0x05, 0x07, /* Usage Page (Keyboard), */
456 0x14, /* Logical Minimum (0), */
457 0x19, 0xE0, /* Usage Minimum (KB Leftcontrol), */
458 0x29, 0xE7, /* Usage Maximum (KB Right GUI), */
459 0x25, 0x01, /* Logical Maximum (1), */
460 0x75, 0x01, /* Report Size (1), */
461 0x95, 0x08, /* Report Count (8), */
462 0x81, 0x02, /* Input (Variable), */
463 0x18, /* Usage Minimum (None), */
464 0x29, 0xFF, /* Usage Maximum (FFh), */
465 0x26, 0xFF, 0x00, /* Logical Maximum (255), */
466 0x75, 0x08, /* Report Size (8), */
467 0x95, 0x06, /* Report Count (6), */
468 0x80, /* Input, */
469 0xC0 /* End Collection */
470};
471
472/*
473 * See TWHA60 description, device and HID report descriptors at
474 * http://sf.net/apps/mediawiki/digimend/?title=UC-Logic_Tablet_TWHA60
475 */
476
477/* Size of the original descriptors of TWHA60 tablet */
478#define TWHA60_RDESC_ORIG_SIZE0 254
479#define TWHA60_RDESC_ORIG_SIZE1 139
480
481/* Fixed TWHA60 report descriptor, interface 0 (stylus) */
482static __u8 twha60_rdesc_fixed0[] = {
483 0x05, 0x0D, /* Usage Page (Digitizer), */
484 0x09, 0x02, /* Usage (Pen), */
485 0xA1, 0x01, /* Collection (Application), */
486 0x85, 0x09, /* Report ID (9), */
487 0x09, 0x20, /* Usage (Stylus), */
488 0xA0, /* Collection (Physical), */
489 0x75, 0x01, /* Report Size (1), */
490 0x09, 0x42, /* Usage (Tip Switch), */
491 0x09, 0x44, /* Usage (Barrel Switch), */
492 0x09, 0x46, /* Usage (Tablet Pick), */
493 0x14, /* Logical Minimum (0), */
494 0x25, 0x01, /* Logical Maximum (1), */
495 0x95, 0x03, /* Report Count (3), */
496 0x81, 0x02, /* Input (Variable), */
497 0x95, 0x04, /* Report Count (4), */
498 0x81, 0x01, /* Input (Constant), */
499 0x09, 0x32, /* Usage (In Range), */
500 0x95, 0x01, /* Report Count (1), */
501 0x81, 0x02, /* Input (Variable), */
502 0x75, 0x10, /* Report Size (16), */
503 0x95, 0x01, /* Report Count (1), */
504 0x14, /* Logical Minimum (0), */
505 0xA4, /* Push, */
506 0x05, 0x01, /* Usage Page (Desktop), */
507 0x55, 0xFD, /* Unit Exponent (-3), */
508 0x65, 0x13, /* Unit (Inch), */
509 0x34, /* Physical Minimum (0), */
510 0x09, 0x30, /* Usage (X), */
511 0x46, 0x10, 0x27, /* Physical Maximum (10000), */
512 0x27, 0x3F, 0x9C,
513 0x00, 0x00, /* Logical Maximum (39999), */
514 0x81, 0x02, /* Input (Variable), */
515 0x09, 0x31, /* Usage (Y), */
516 0x46, 0x6A, 0x18, /* Physical Maximum (6250), */
517 0x26, 0xA7, 0x61, /* Logical Maximum (24999), */
518 0x81, 0x02, /* Input (Variable), */
519 0xB4, /* Pop, */
520 0x09, 0x30, /* Usage (Tip Pressure), */
521 0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
522 0x81, 0x02, /* Input (Variable), */
523 0xC0, /* End Collection, */
524 0xC0 /* End Collection */
525};
526
527/* Fixed TWHA60 report descriptor, interface 1 (frame buttons) */
528static __u8 twha60_rdesc_fixed1[] = {
529 0x05, 0x01, /* Usage Page (Desktop), */
530 0x09, 0x06, /* Usage (Keyboard), */
531 0xA1, 0x01, /* Collection (Application), */
532 0x85, 0x05, /* Report ID (5), */
533 0x05, 0x07, /* Usage Page (Keyboard), */
534 0x14, /* Logical Minimum (0), */
535 0x25, 0x01, /* Logical Maximum (1), */
536 0x75, 0x01, /* Report Size (1), */
537 0x95, 0x08, /* Report Count (8), */
538 0x81, 0x01, /* Input (Constant), */
539 0x95, 0x0C, /* Report Count (12), */
540 0x19, 0x3A, /* Usage Minimum (KB F1), */
541 0x29, 0x45, /* Usage Maximum (KB F12), */
542 0x81, 0x02, /* Input (Variable), */
543 0x95, 0x0C, /* Report Count (12), */
544 0x19, 0x68, /* Usage Minimum (KB F13), */
545 0x29, 0x73, /* Usage Maximum (KB F24), */
546 0x81, 0x02, /* Input (Variable), */
547 0x95, 0x08, /* Report Count (8), */
548 0x81, 0x01, /* Input (Constant), */
549 0xC0 /* End Collection */
550};
551
552/* Report descriptor template placeholder head */
553#define UCLOGIC_PH_HEAD 0xFE, 0xED, 0x1D
554
555/* Report descriptor template placeholder IDs */
556enum uclogic_ph_id {
557 UCLOGIC_PH_ID_X_LM,
558 UCLOGIC_PH_ID_X_PM,
559 UCLOGIC_PH_ID_Y_LM,
560 UCLOGIC_PH_ID_Y_PM,
561 UCLOGIC_PH_ID_PRESSURE_LM,
562 UCLOGIC_PH_ID_NUM
563};
564
565/* Report descriptor template placeholder */
566#define UCLOGIC_PH(_ID) UCLOGIC_PH_HEAD, UCLOGIC_PH_ID_##_ID
567#define UCLOGIC_PEN_REPORT_ID 0x07
568
569/* Fixed report descriptor template */
570static const __u8 uclogic_tablet_rdesc_template[] = {
571 0x05, 0x0D, /* Usage Page (Digitizer), */
572 0x09, 0x02, /* Usage (Pen), */
573 0xA1, 0x01, /* Collection (Application), */
574 0x85, 0x07, /* Report ID (7), */
575 0x09, 0x20, /* Usage (Stylus), */
576 0xA0, /* Collection (Physical), */
577 0x14, /* Logical Minimum (0), */
578 0x25, 0x01, /* Logical Maximum (1), */
579 0x75, 0x01, /* Report Size (1), */
580 0x09, 0x42, /* Usage (Tip Switch), */
581 0x09, 0x44, /* Usage (Barrel Switch), */
582 0x09, 0x46, /* Usage (Tablet Pick), */
583 0x95, 0x03, /* Report Count (3), */
584 0x81, 0x02, /* Input (Variable), */
585 0x95, 0x03, /* Report Count (3), */
586 0x81, 0x03, /* Input (Constant, Variable), */
587 0x09, 0x32, /* Usage (In Range), */
588 0x95, 0x01, /* Report Count (1), */
589 0x81, 0x02, /* Input (Variable), */
590 0x95, 0x01, /* Report Count (1), */
591 0x81, 0x03, /* Input (Constant, Variable), */
592 0x75, 0x10, /* Report Size (16), */
593 0x95, 0x01, /* Report Count (1), */
594 0xA4, /* Push, */
595 0x05, 0x01, /* Usage Page (Desktop), */
596 0x65, 0x13, /* Unit (Inch), */
597 0x55, 0xFD, /* Unit Exponent (-3), */
598 0x34, /* Physical Minimum (0), */
599 0x09, 0x30, /* Usage (X), */
600 0x27, UCLOGIC_PH(X_LM), /* Logical Maximum (PLACEHOLDER), */
601 0x47, UCLOGIC_PH(X_PM), /* Physical Maximum (PLACEHOLDER), */
602 0x81, 0x02, /* Input (Variable), */
603 0x09, 0x31, /* Usage (Y), */
604 0x27, UCLOGIC_PH(Y_LM), /* Logical Maximum (PLACEHOLDER), */
605 0x47, UCLOGIC_PH(Y_PM), /* Physical Maximum (PLACEHOLDER), */
606 0x81, 0x02, /* Input (Variable), */
607 0xB4, /* Pop, */
608 0x09, 0x30, /* Usage (Tip Pressure), */
609 0x27,
610 UCLOGIC_PH(PRESSURE_LM),/* Logical Maximum (PLACEHOLDER), */
611 0x81, 0x02, /* Input (Variable), */
612 0xC0, /* End Collection, */
613 0xC0 /* End Collection */
614};
615
616/* Parameter indices */
617enum uclogic_prm {
618 UCLOGIC_PRM_X_LM = 1,
619 UCLOGIC_PRM_Y_LM = 2,
620 UCLOGIC_PRM_PRESSURE_LM = 4,
621 UCLOGIC_PRM_RESOLUTION = 5,
622 UCLOGIC_PRM_NUM
623};
624
625/* Driver data */
626struct uclogic_drvdata {
627 __u8 *rdesc;
628 unsigned int rsize;
629 bool invert_pen_inrange;
630 bool ignore_pen_usage;
631};
632
633static __u8 *uclogic_report_fixup(struct hid_device *hdev, __u8 *rdesc,
634 unsigned int *rsize)
635{
636 struct usb_interface *iface = to_usb_interface(hdev->dev.parent);
637 __u8 iface_num = iface->cur_altsetting->desc.bInterfaceNumber;
638 struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
639
640 switch (hdev->product) {
641 case USB_DEVICE_ID_UCLOGIC_TABLET_PF1209:
642 if (*rsize == PF1209_RDESC_ORIG_SIZE) {
643 rdesc = pf1209_rdesc_fixed;
644 *rsize = sizeof(pf1209_rdesc_fixed);
645 }
646 break;
647 case USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U:
648 if (*rsize == WPXXXXU_RDESC_ORIG_SIZE) {
649 rdesc = wp4030u_rdesc_fixed;
650 *rsize = sizeof(wp4030u_rdesc_fixed);
651 }
652 break;
653 case USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U:
654 if (*rsize == WPXXXXU_RDESC_ORIG_SIZE) {
655 rdesc = wp5540u_rdesc_fixed;
656 *rsize = sizeof(wp5540u_rdesc_fixed);
657 }
658 break;
659 case USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U:
660 if (*rsize == WPXXXXU_RDESC_ORIG_SIZE) {
661 rdesc = wp8060u_rdesc_fixed;
662 *rsize = sizeof(wp8060u_rdesc_fixed);
663 }
664 break;
665 case USB_DEVICE_ID_UCLOGIC_TABLET_WP1062:
666 if (*rsize == WP1062_RDESC_ORIG_SIZE) {
667 rdesc = wp1062_rdesc_fixed;
668 *rsize = sizeof(wp1062_rdesc_fixed);
669 }
670 break;
671 case USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850:
672 switch (iface_num) {
673 case 0:
674 if (*rsize == TWHL850_RDESC_ORIG_SIZE0) {
675 rdesc = twhl850_rdesc_fixed0;
676 *rsize = sizeof(twhl850_rdesc_fixed0);
677 }
678 break;
679 case 1:
680 if (*rsize == TWHL850_RDESC_ORIG_SIZE1) {
681 rdesc = twhl850_rdesc_fixed1;
682 *rsize = sizeof(twhl850_rdesc_fixed1);
683 }
684 break;
685 case 2:
686 if (*rsize == TWHL850_RDESC_ORIG_SIZE2) {
687 rdesc = twhl850_rdesc_fixed2;
688 *rsize = sizeof(twhl850_rdesc_fixed2);
689 }
690 break;
691 }
692 break;
693 case USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60:
694 switch (iface_num) {
695 case 0:
696 if (*rsize == TWHA60_RDESC_ORIG_SIZE0) {
697 rdesc = twha60_rdesc_fixed0;
698 *rsize = sizeof(twha60_rdesc_fixed0);
699 }
700 break;
701 case 1:
702 if (*rsize == TWHA60_RDESC_ORIG_SIZE1) {
703 rdesc = twha60_rdesc_fixed1;
704 *rsize = sizeof(twha60_rdesc_fixed1);
705 }
706 break;
707 }
708 break;
709 default:
710 if (drvdata->rdesc != NULL) {
711 rdesc = drvdata->rdesc;
712 *rsize = drvdata->rsize;
713 }
714 }
715
716 return rdesc;
717}
718
719static int uclogic_input_mapping(struct hid_device *hdev, struct hid_input *hi,
720 struct hid_field *field, struct hid_usage *usage,
721 unsigned long **bit, int *max)
722{
723 struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
724
725 /* discard the unused pen interface */
726 if ((drvdata->ignore_pen_usage) &&
727 (field->application == HID_DG_PEN))
728 return -1;
729
730 /* let hid-core decide what to do */
731 return 0;
732}
733
734static int uclogic_input_configured(struct hid_device *hdev,
735 struct hid_input *hi)
736{
737 char *name;
738 const char *suffix = NULL;
739 struct hid_field *field;
740 size_t len;
741
742 /* no report associated (HID_QUIRK_MULTI_INPUT not set) */
743 if (!hi->report)
744 return 0;
745
746 field = hi->report->field[0];
747
748 switch (field->application) {
749 case HID_GD_KEYBOARD:
750 suffix = "Keyboard";
751 break;
752 case HID_GD_MOUSE:
753 suffix = "Mouse";
754 break;
755 case HID_GD_KEYPAD:
756 suffix = "Pad";
757 break;
758 case HID_DG_PEN:
759 suffix = "Pen";
760 break;
761 case HID_CP_CONSUMER_CONTROL:
762 suffix = "Consumer Control";
763 break;
764 case HID_GD_SYSTEM_CONTROL:
765 suffix = "System Control";
766 break;
767 }
768
769 if (suffix) {
770 len = strlen(hdev->name) + 2 + strlen(suffix);
771 name = devm_kzalloc(&hi->input->dev, len, GFP_KERNEL);
772 if (name) {
773 snprintf(name, len, "%s %s", hdev->name, suffix);
774 hi->input->name = name;
775 }
776 }
777
778 return 0;
779}
780
781/**
782 * Enable fully-functional tablet mode and determine device parameters.
783 *
784 * @hdev: HID device
785 */
786static int uclogic_tablet_enable(struct hid_device *hdev)
787{
788 int rc;
789 struct usb_device *usb_dev = hid_to_usb_dev(hdev);
790 struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
791 __le16 *buf = NULL;
792 size_t len;
793 s32 params[UCLOGIC_PH_ID_NUM];
794 s32 resolution;
795 __u8 *p;
796 s32 v;
797
798 /*
799 * Read string descriptor containing tablet parameters. The specific
800 * string descriptor and data were discovered by sniffing the Windows
801 * driver traffic.
802 * NOTE: This enables fully-functional tablet mode.
803 */
804 len = UCLOGIC_PRM_NUM * sizeof(*buf);
805 buf = kmalloc(len, GFP_KERNEL);
806 if (buf == NULL) {
807 hid_err(hdev, "failed to allocate parameter buffer\n");
808 rc = -ENOMEM;
809 goto cleanup;
810 }
811 rc = usb_control_msg(usb_dev, usb_rcvctrlpipe(usb_dev, 0),
812 USB_REQ_GET_DESCRIPTOR, USB_DIR_IN,
813 (USB_DT_STRING << 8) + 0x64,
814 0x0409, buf, len,
815 USB_CTRL_GET_TIMEOUT);
816 if (rc == -EPIPE) {
817 hid_err(hdev, "device parameters not found\n");
818 rc = -ENODEV;
819 goto cleanup;
820 } else if (rc < 0) {
821 hid_err(hdev, "failed to get device parameters: %d\n", rc);
822 rc = -ENODEV;
823 goto cleanup;
824 } else if (rc != len) {
825 hid_err(hdev, "invalid device parameters\n");
826 rc = -ENODEV;
827 goto cleanup;
828 }
829
830 /* Extract device parameters */
831 params[UCLOGIC_PH_ID_X_LM] = le16_to_cpu(buf[UCLOGIC_PRM_X_LM]);
832 params[UCLOGIC_PH_ID_Y_LM] = le16_to_cpu(buf[UCLOGIC_PRM_Y_LM]);
833 params[UCLOGIC_PH_ID_PRESSURE_LM] =
834 le16_to_cpu(buf[UCLOGIC_PRM_PRESSURE_LM]);
835 resolution = le16_to_cpu(buf[UCLOGIC_PRM_RESOLUTION]);
836 if (resolution == 0) {
837 params[UCLOGIC_PH_ID_X_PM] = 0;
838 params[UCLOGIC_PH_ID_Y_PM] = 0;
839 } else {
840 params[UCLOGIC_PH_ID_X_PM] = params[UCLOGIC_PH_ID_X_LM] *
841 1000 / resolution;
842 params[UCLOGIC_PH_ID_Y_PM] = params[UCLOGIC_PH_ID_Y_LM] *
843 1000 / resolution;
844 }
845
846 /* Allocate fixed report descriptor */
847 drvdata->rdesc = devm_kzalloc(&hdev->dev,
848 sizeof(uclogic_tablet_rdesc_template),
849 GFP_KERNEL);
850 if (drvdata->rdesc == NULL) {
851 hid_err(hdev, "failed to allocate fixed rdesc\n");
852 rc = -ENOMEM;
853 goto cleanup;
854 }
855 drvdata->rsize = sizeof(uclogic_tablet_rdesc_template);
856
857 /* Format fixed report descriptor */
858 memcpy(drvdata->rdesc, uclogic_tablet_rdesc_template,
859 drvdata->rsize);
860 for (p = drvdata->rdesc;
861 p <= drvdata->rdesc + drvdata->rsize - 4;) {
862 if (p[0] == 0xFE && p[1] == 0xED && p[2] == 0x1D &&
863 p[3] < ARRAY_SIZE(params)) {
864 v = params[p[3]];
865 put_unaligned(cpu_to_le32(v), (s32 *)p);
866 p += 4;
867 } else {
868 p++;
869 }
870 }
871
872 rc = 0;
873
874cleanup:
875 kfree(buf);
876 return rc;
877}
878
879static int uclogic_probe(struct hid_device *hdev,
880 const struct hid_device_id *id)
881{
882 int rc;
883 struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
884 struct uclogic_drvdata *drvdata;
885
886 /*
887 * libinput requires the pad interface to be on a different node
888 * than the pen, so use QUIRK_MULTI_INPUT for all tablets.
889 */
890 hdev->quirks |= HID_QUIRK_MULTI_INPUT;
891 hdev->quirks |= HID_QUIRK_NO_EMPTY_INPUT;
892
893 /* Allocate and assign driver data */
894 drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL);
895 if (drvdata == NULL)
896 return -ENOMEM;
897
898 hid_set_drvdata(hdev, drvdata);
899
900 switch (id->product) {
901 case USB_DEVICE_ID_HUION_TABLET:
902 /* If this is the pen interface */
903 if (intf->cur_altsetting->desc.bInterfaceNumber == 0) {
904 rc = uclogic_tablet_enable(hdev);
905 if (rc) {
906 hid_err(hdev, "tablet enabling failed\n");
907 return rc;
908 }
909 drvdata->invert_pen_inrange = true;
910 } else {
911 drvdata->ignore_pen_usage = true;
912 }
913 break;
914 }
915
916 rc = hid_parse(hdev);
917 if (rc) {
918 hid_err(hdev, "parse failed\n");
919 return rc;
920 }
921
922 rc = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
923 if (rc) {
924 hid_err(hdev, "hw start failed\n");
925 return rc;
926 }
927
928 return 0;
929}
930
931static int uclogic_raw_event(struct hid_device *hdev, struct hid_report *report,
932 u8 *data, int size)
933{
934 struct uclogic_drvdata *drvdata = hid_get_drvdata(hdev);
935
936 if ((drvdata->invert_pen_inrange) &&
937 (report->type == HID_INPUT_REPORT) &&
938 (report->id == UCLOGIC_PEN_REPORT_ID) &&
939 (size >= 2))
940 /* Invert the in-range bit */
941 data[1] ^= 0x40;
942
943 return 0;
944}
945
946static const struct hid_device_id uclogic_devices[] = {
947 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
948 USB_DEVICE_ID_UCLOGIC_TABLET_PF1209) },
949 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
950 USB_DEVICE_ID_UCLOGIC_TABLET_WP4030U) },
951 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
952 USB_DEVICE_ID_UCLOGIC_TABLET_WP5540U) },
953 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
954 USB_DEVICE_ID_UCLOGIC_TABLET_WP8060U) },
955 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
956 USB_DEVICE_ID_UCLOGIC_TABLET_WP1062) },
957 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
958 USB_DEVICE_ID_UCLOGIC_WIRELESS_TABLET_TWHL850) },
959 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC,
960 USB_DEVICE_ID_UCLOGIC_TABLET_TWHA60) },
961 { HID_USB_DEVICE(USB_VENDOR_ID_HUION, USB_DEVICE_ID_HUION_TABLET) },
962 { HID_USB_DEVICE(USB_VENDOR_ID_UCLOGIC, USB_DEVICE_ID_HUION_TABLET) },
963 { }
964};
965MODULE_DEVICE_TABLE(hid, uclogic_devices);
966
967static struct hid_driver uclogic_driver = {
968 .name = "uclogic",
969 .id_table = uclogic_devices,
970 .probe = uclogic_probe,
971 .report_fixup = uclogic_report_fixup,
972 .raw_event = uclogic_raw_event,
973 .input_mapping = uclogic_input_mapping,
974 .input_configured = uclogic_input_configured,
975};
976module_hid_driver(uclogic_driver);
977
978MODULE_AUTHOR("Martin Rusko");
979MODULE_AUTHOR("Nikolai Kondrashov");
980MODULE_LICENSE("GPL");