Commit | Line | Data |
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b4e05923 HG |
1 | /* |
2 | * Wacom protocol 4 serial tablet driver | |
3 | * | |
4 | * Copyright 2014 Hans de Goede <hdegoede@redhat.com> | |
5 | * Copyright 2011-2012 Julian Squires <julian@cipht.net> | |
6 | * | |
7 | * This program is free software; you can redistribute it and/or modify it | |
8 | * under the terms of the GNU General Public License as published by the | |
9 | * Free Software Foundation; either version of 2 of the License, or (at your | |
10 | * option) any later version. See the file COPYING in the main directory of | |
11 | * this archive for more details. | |
12 | * | |
13 | * Many thanks to Bill Seremetis, without whom PenPartner support | |
14 | * would not have been possible. Thanks to Patrick Mahoney. | |
15 | * | |
16 | * This driver was developed with reference to much code written by others, | |
17 | * particularly: | |
18 | * - elo, gunze drivers by Vojtech Pavlik <vojtech@ucw.cz>; | |
19 | * - wacom_w8001 driver by Jaya Kumar <jayakumar.lkml@gmail.com>; | |
20 | * - the USB wacom input driver, credited to many people | |
21 | * (see drivers/input/tablet/wacom.h); | |
22 | * - new and old versions of linuxwacom / xf86-input-wacom credited to | |
23 | * Frederic Lepied, France. <Lepied@XFree86.org> and | |
24 | * Ping Cheng, Wacom. <pingc@wacom.com>; | |
25 | * - and xf86wacom.c (a presumably ancient version of the linuxwacom code), | |
26 | * by Frederic Lepied and Raph Levien <raph@gtk.org>. | |
27 | * | |
28 | * To do: | |
29 | * - support pad buttons; (requires access to a model with pad buttons) | |
30 | * - support (protocol 4-style) tilt (requires access to a > 1.4 rom model) | |
31 | */ | |
32 | ||
33 | /* | |
34 | * Wacom serial protocol 4 documentation taken from linuxwacom-0.9.9 code, | |
35 | * protocol 4 uses 7 or 9 byte of data in the following format: | |
36 | * | |
37 | * Byte 1 | |
38 | * bit 7 Sync bit always 1 | |
39 | * bit 6 Pointing device detected | |
40 | * bit 5 Cursor = 0 / Stylus = 1 | |
41 | * bit 4 Reserved | |
42 | * bit 3 1 if a button on the pointing device has been pressed | |
43 | * bit 2 P0 (optional) | |
44 | * bit 1 X15 | |
45 | * bit 0 X14 | |
46 | * | |
47 | * Byte 2 | |
48 | * bit 7 Always 0 | |
49 | * bits 6-0 = X13 - X7 | |
50 | * | |
51 | * Byte 3 | |
52 | * bit 7 Always 0 | |
53 | * bits 6-0 = X6 - X0 | |
54 | * | |
55 | * Byte 4 | |
56 | * bit 7 Always 0 | |
57 | * bit 6 B3 | |
58 | * bit 5 B2 | |
59 | * bit 4 B1 | |
60 | * bit 3 B0 | |
61 | * bit 2 P1 (optional) | |
62 | * bit 1 Y15 | |
63 | * bit 0 Y14 | |
64 | * | |
65 | * Byte 5 | |
66 | * bit 7 Always 0 | |
67 | * bits 6-0 = Y13 - Y7 | |
68 | * | |
69 | * Byte 6 | |
70 | * bit 7 Always 0 | |
71 | * bits 6-0 = Y6 - Y0 | |
72 | * | |
73 | * Byte 7 | |
74 | * bit 7 Always 0 | |
75 | * bit 6 Sign of pressure data; or wheel-rel for cursor tool | |
76 | * bit 5 P7; or REL1 for cursor tool | |
77 | * bit 4 P6; or REL0 for cursor tool | |
78 | * bit 3 P5 | |
79 | * bit 2 P4 | |
80 | * bit 1 P3 | |
81 | * bit 0 P2 | |
82 | * | |
83 | * byte 8 and 9 are optional and present only | |
84 | * in tilt mode. | |
85 | * | |
86 | * Byte 8 | |
87 | * bit 7 Always 0 | |
88 | * bit 6 Sign of tilt X | |
89 | * bit 5 Xt6 | |
90 | * bit 4 Xt5 | |
91 | * bit 3 Xt4 | |
92 | * bit 2 Xt3 | |
93 | * bit 1 Xt2 | |
94 | * bit 0 Xt1 | |
95 | * | |
96 | * Byte 9 | |
97 | * bit 7 Always 0 | |
98 | * bit 6 Sign of tilt Y | |
99 | * bit 5 Yt6 | |
100 | * bit 4 Yt5 | |
101 | * bit 3 Yt4 | |
102 | * bit 2 Yt3 | |
103 | * bit 1 Yt2 | |
104 | * bit 0 Yt1 | |
105 | */ | |
106 | ||
107 | #include <linux/completion.h> | |
108 | #include <linux/init.h> | |
109 | #include <linux/input.h> | |
110 | #include <linux/interrupt.h> | |
111 | #include <linux/kernel.h> | |
112 | #include <linux/module.h> | |
113 | #include <linux/serio.h> | |
114 | #include <linux/slab.h> | |
115 | #include <linux/string.h> | |
b4e05923 HG |
116 | |
117 | MODULE_AUTHOR("Julian Squires <julian@cipht.net>, Hans de Goede <hdegoede@redhat.com>"); | |
118 | MODULE_DESCRIPTION("Wacom protocol 4 serial tablet driver"); | |
119 | MODULE_LICENSE("GPL"); | |
120 | ||
121 | #define REQUEST_MODEL_AND_ROM_VERSION "~#" | |
122 | #define REQUEST_MAX_COORDINATES "~C\r" | |
123 | #define REQUEST_CONFIGURATION_STRING "~R\r" | |
124 | #define REQUEST_RESET_TO_PROTOCOL_IV "\r#" | |
125 | /* | |
126 | * Note: sending "\r$\r" causes at least the Digitizer II to send | |
127 | * packets in ASCII instead of binary. "\r#" seems to undo that. | |
128 | */ | |
129 | ||
130 | #define COMMAND_START_SENDING_PACKETS "ST\r" | |
131 | #define COMMAND_STOP_SENDING_PACKETS "SP\r" | |
132 | #define COMMAND_MULTI_MODE_INPUT "MU1\r" | |
133 | #define COMMAND_ORIGIN_IN_UPPER_LEFT "OC1\r" | |
134 | #define COMMAND_ENABLE_ALL_MACRO_BUTTONS "~M0\r" | |
135 | #define COMMAND_DISABLE_GROUP_1_MACRO_BUTTONS "~M1\r" | |
136 | #define COMMAND_TRANSMIT_AT_MAX_RATE "IT0\r" | |
137 | #define COMMAND_DISABLE_INCREMENTAL_MODE "IN0\r" | |
138 | #define COMMAND_ENABLE_CONTINUOUS_MODE "SR\r" | |
139 | #define COMMAND_ENABLE_PRESSURE_MODE "PH1\r" | |
140 | #define COMMAND_Z_FILTER "ZF1\r" | |
141 | ||
142 | /* Note that this is a protocol 4 packet without tilt information. */ | |
143 | #define PACKET_LENGTH 7 | |
144 | #define DATA_SIZE 32 | |
145 | ||
146 | /* flags */ | |
147 | #define F_COVERS_SCREEN 0x01 | |
148 | #define F_HAS_STYLUS2 0x02 | |
149 | #define F_HAS_SCROLLWHEEL 0x04 | |
150 | ||
5e740ce6 DT |
151 | /* device IDs */ |
152 | #define STYLUS_DEVICE_ID 0x02 | |
153 | #define CURSOR_DEVICE_ID 0x06 | |
154 | #define ERASER_DEVICE_ID 0x0A | |
155 | ||
b4e05923 HG |
156 | enum { STYLUS = 1, ERASER, CURSOR }; |
157 | ||
158 | static const struct { | |
159 | int device_id; | |
160 | int input_id; | |
161 | } tools[] = { | |
162 | { 0, 0 }, | |
163 | { STYLUS_DEVICE_ID, BTN_TOOL_PEN }, | |
164 | { ERASER_DEVICE_ID, BTN_TOOL_RUBBER }, | |
165 | { CURSOR_DEVICE_ID, BTN_TOOL_MOUSE }, | |
166 | }; | |
167 | ||
168 | struct wacom { | |
169 | struct input_dev *dev; | |
170 | struct completion cmd_done; | |
171 | int result; | |
172 | u8 expect; | |
173 | u8 eraser_mask; | |
174 | unsigned int extra_z_bits; | |
175 | unsigned int flags; | |
176 | unsigned int res_x, res_y; | |
177 | unsigned int max_x, max_y; | |
178 | unsigned int tool; | |
179 | unsigned int idx; | |
180 | u8 data[DATA_SIZE]; | |
181 | char phys[32]; | |
182 | }; | |
183 | ||
184 | enum { | |
185 | MODEL_CINTIQ = 0x504C, /* PL */ | |
186 | MODEL_CINTIQ2 = 0x4454, /* DT */ | |
187 | MODEL_DIGITIZER_II = 0x5544, /* UD */ | |
188 | MODEL_GRAPHIRE = 0x4554, /* ET */ | |
189 | MODEL_PENPARTNER = 0x4354, /* CT */ | |
190 | }; | |
191 | ||
192 | static void wacom_handle_model_response(struct wacom *wacom) | |
193 | { | |
194 | int major_v, minor_v, r = 0; | |
195 | char *p; | |
196 | ||
197 | p = strrchr(wacom->data, 'V'); | |
198 | if (p) | |
199 | r = sscanf(p + 1, "%u.%u", &major_v, &minor_v); | |
200 | if (r != 2) | |
201 | major_v = minor_v = 0; | |
202 | ||
203 | switch (wacom->data[2] << 8 | wacom->data[3]) { | |
204 | case MODEL_CINTIQ: /* UNTESTED */ | |
205 | case MODEL_CINTIQ2: | |
206 | if ((wacom->data[2] << 8 | wacom->data[3]) == MODEL_CINTIQ) { | |
207 | wacom->dev->name = "Wacom Cintiq"; | |
208 | wacom->dev->id.version = MODEL_CINTIQ; | |
209 | } else { | |
210 | wacom->dev->name = "Wacom Cintiq II"; | |
211 | wacom->dev->id.version = MODEL_CINTIQ2; | |
212 | } | |
213 | wacom->res_x = 508; | |
214 | wacom->res_y = 508; | |
215 | ||
216 | switch (wacom->data[5] << 8 | wacom->data[6]) { | |
217 | case 0x3731: /* PL-710 */ | |
218 | wacom->res_x = 2540; | |
219 | wacom->res_y = 2540; | |
220 | /* fall through */ | |
221 | case 0x3535: /* PL-550 */ | |
222 | case 0x3830: /* PL-800 */ | |
223 | wacom->extra_z_bits = 2; | |
224 | } | |
225 | ||
226 | wacom->flags = F_COVERS_SCREEN; | |
227 | break; | |
228 | ||
229 | case MODEL_PENPARTNER: | |
230 | wacom->dev->name = "Wacom Penpartner"; | |
231 | wacom->dev->id.version = MODEL_PENPARTNER; | |
232 | wacom->res_x = 1000; | |
233 | wacom->res_y = 1000; | |
234 | break; | |
235 | ||
236 | case MODEL_GRAPHIRE: | |
237 | wacom->dev->name = "Wacom Graphire"; | |
238 | wacom->dev->id.version = MODEL_GRAPHIRE; | |
239 | wacom->res_x = 1016; | |
240 | wacom->res_y = 1016; | |
241 | wacom->max_x = 5103; | |
242 | wacom->max_y = 3711; | |
243 | wacom->extra_z_bits = 2; | |
244 | wacom->eraser_mask = 0x08; | |
245 | wacom->flags = F_HAS_STYLUS2 | F_HAS_SCROLLWHEEL; | |
246 | break; | |
247 | ||
248 | case MODEL_DIGITIZER_II: | |
249 | wacom->dev->name = "Wacom Digitizer II"; | |
250 | wacom->dev->id.version = MODEL_DIGITIZER_II; | |
251 | if (major_v == 1 && minor_v <= 2) | |
252 | wacom->extra_z_bits = 0; /* UNTESTED */ | |
253 | break; | |
254 | ||
255 | default: | |
256 | dev_err(&wacom->dev->dev, "Unsupported Wacom model %s\n", | |
257 | wacom->data); | |
258 | wacom->result = -ENODEV; | |
259 | return; | |
260 | } | |
261 | ||
262 | dev_info(&wacom->dev->dev, "%s tablet, version %u.%u\n", | |
263 | wacom->dev->name, major_v, minor_v); | |
264 | } | |
265 | ||
266 | static void wacom_handle_configuration_response(struct wacom *wacom) | |
267 | { | |
268 | int r, skip; | |
269 | ||
270 | dev_dbg(&wacom->dev->dev, "Configuration string: %s\n", wacom->data); | |
271 | r = sscanf(wacom->data, "~R%x,%u,%u,%u,%u", &skip, &skip, &skip, | |
272 | &wacom->res_x, &wacom->res_y); | |
273 | if (r != 5) | |
274 | dev_warn(&wacom->dev->dev, "could not get resolution\n"); | |
275 | } | |
276 | ||
277 | static void wacom_handle_coordinates_response(struct wacom *wacom) | |
278 | { | |
279 | int r; | |
280 | ||
281 | dev_dbg(&wacom->dev->dev, "Coordinates string: %s\n", wacom->data); | |
282 | r = sscanf(wacom->data, "~C%u,%u", &wacom->max_x, &wacom->max_y); | |
283 | if (r != 2) | |
284 | dev_warn(&wacom->dev->dev, "could not get max coordinates\n"); | |
285 | } | |
286 | ||
287 | static void wacom_handle_response(struct wacom *wacom) | |
288 | { | |
289 | if (wacom->data[0] != '~' || wacom->data[1] != wacom->expect) { | |
290 | dev_err(&wacom->dev->dev, | |
291 | "Wacom got an unexpected response: %s\n", wacom->data); | |
292 | wacom->result = -EIO; | |
293 | } else { | |
294 | wacom->result = 0; | |
295 | ||
296 | switch (wacom->data[1]) { | |
297 | case '#': | |
298 | wacom_handle_model_response(wacom); | |
299 | break; | |
300 | case 'R': | |
301 | wacom_handle_configuration_response(wacom); | |
302 | break; | |
303 | case 'C': | |
304 | wacom_handle_coordinates_response(wacom); | |
305 | break; | |
306 | } | |
307 | } | |
308 | ||
309 | complete(&wacom->cmd_done); | |
310 | } | |
311 | ||
312 | static void wacom_handle_packet(struct wacom *wacom) | |
313 | { | |
314 | u8 in_proximity_p, stylus_p, button; | |
315 | unsigned int tool; | |
316 | int x, y, z; | |
317 | ||
318 | in_proximity_p = wacom->data[0] & 0x40; | |
319 | stylus_p = wacom->data[0] & 0x20; | |
320 | button = (wacom->data[3] & 0x78) >> 3; | |
321 | x = (wacom->data[0] & 3) << 14 | wacom->data[1]<<7 | wacom->data[2]; | |
322 | y = (wacom->data[3] & 3) << 14 | wacom->data[4]<<7 | wacom->data[5]; | |
323 | ||
324 | if (in_proximity_p && stylus_p) { | |
325 | z = wacom->data[6] & 0x7f; | |
326 | if (wacom->extra_z_bits >= 1) | |
327 | z = z << 1 | (wacom->data[3] & 0x4) >> 2; | |
328 | if (wacom->extra_z_bits > 1) | |
329 | z = z << 1 | (wacom->data[0] & 0x4) >> 2; | |
330 | z = z ^ (0x40 << wacom->extra_z_bits); | |
331 | } else { | |
332 | z = -1; | |
333 | } | |
334 | ||
335 | if (stylus_p) | |
336 | tool = (button & wacom->eraser_mask) ? ERASER : STYLUS; | |
337 | else | |
338 | tool = CURSOR; | |
339 | ||
340 | if (tool != wacom->tool && wacom->tool != 0) { | |
341 | input_report_key(wacom->dev, tools[wacom->tool].input_id, 0); | |
342 | input_sync(wacom->dev); | |
343 | } | |
344 | wacom->tool = tool; | |
345 | ||
346 | input_report_key(wacom->dev, tools[tool].input_id, in_proximity_p); | |
347 | input_report_abs(wacom->dev, ABS_MISC, | |
348 | in_proximity_p ? tools[tool].device_id : 0); | |
349 | input_report_abs(wacom->dev, ABS_X, x); | |
350 | input_report_abs(wacom->dev, ABS_Y, y); | |
351 | input_report_abs(wacom->dev, ABS_PRESSURE, z); | |
352 | if (stylus_p) { | |
353 | input_report_key(wacom->dev, BTN_TOUCH, button & 1); | |
354 | input_report_key(wacom->dev, BTN_STYLUS, button & 2); | |
355 | input_report_key(wacom->dev, BTN_STYLUS2, button & 4); | |
356 | } else { | |
357 | input_report_key(wacom->dev, BTN_LEFT, button & 1); | |
358 | input_report_key(wacom->dev, BTN_RIGHT, button & 2); | |
359 | input_report_key(wacom->dev, BTN_MIDDLE, button & 4); | |
360 | /* handle relative wheel for non-stylus device */ | |
361 | z = (wacom->data[6] & 0x30) >> 4; | |
362 | if (wacom->data[6] & 0x40) | |
363 | z = -z; | |
364 | input_report_rel(wacom->dev, REL_WHEEL, z); | |
365 | } | |
366 | input_sync(wacom->dev); | |
367 | } | |
368 | ||
369 | static void wacom_clear_data_buf(struct wacom *wacom) | |
370 | { | |
371 | memset(wacom->data, 0, DATA_SIZE); | |
372 | wacom->idx = 0; | |
373 | } | |
374 | ||
375 | static irqreturn_t wacom_interrupt(struct serio *serio, unsigned char data, | |
376 | unsigned int flags) | |
377 | { | |
378 | struct wacom *wacom = serio_get_drvdata(serio); | |
379 | ||
380 | if (data & 0x80) | |
381 | wacom->idx = 0; | |
382 | ||
383 | /* | |
384 | * We're either expecting a carriage return-terminated ASCII | |
385 | * response string, or a seven-byte packet with the MSB set on | |
386 | * the first byte. | |
387 | * | |
388 | * Note however that some tablets (the PenPartner, for | |
389 | * example) don't send a carriage return at the end of a | |
390 | * command. We handle these by waiting for timeout. | |
391 | */ | |
392 | if (data == '\r' && !(wacom->data[0] & 0x80)) { | |
393 | wacom_handle_response(wacom); | |
394 | wacom_clear_data_buf(wacom); | |
395 | return IRQ_HANDLED; | |
396 | } | |
397 | ||
398 | /* Leave place for 0 termination */ | |
399 | if (wacom->idx > (DATA_SIZE - 2)) { | |
400 | dev_dbg(&wacom->dev->dev, | |
401 | "throwing away %d bytes of garbage\n", wacom->idx); | |
402 | wacom_clear_data_buf(wacom); | |
403 | } | |
404 | wacom->data[wacom->idx++] = data; | |
405 | ||
406 | if (wacom->idx == PACKET_LENGTH && (wacom->data[0] & 0x80)) { | |
407 | wacom_handle_packet(wacom); | |
408 | wacom_clear_data_buf(wacom); | |
409 | } | |
410 | ||
411 | return IRQ_HANDLED; | |
412 | } | |
413 | ||
414 | static void wacom_disconnect(struct serio *serio) | |
415 | { | |
416 | struct wacom *wacom = serio_get_drvdata(serio); | |
417 | ||
418 | serio_close(serio); | |
419 | serio_set_drvdata(serio, NULL); | |
420 | input_unregister_device(wacom->dev); | |
421 | kfree(wacom); | |
422 | } | |
423 | ||
424 | static int wacom_send(struct serio *serio, const u8 *command) | |
425 | { | |
426 | int err = 0; | |
427 | ||
428 | for (; !err && *command; command++) | |
429 | err = serio_write(serio, *command); | |
430 | ||
431 | return err; | |
432 | } | |
433 | ||
434 | static int wacom_send_setup_string(struct wacom *wacom, struct serio *serio) | |
435 | { | |
436 | const u8 *cmd; | |
437 | ||
438 | switch (wacom->dev->id.version) { | |
439 | case MODEL_CINTIQ: /* UNTESTED */ | |
440 | cmd = COMMAND_ORIGIN_IN_UPPER_LEFT | |
441 | COMMAND_TRANSMIT_AT_MAX_RATE | |
442 | COMMAND_ENABLE_CONTINUOUS_MODE | |
443 | COMMAND_START_SENDING_PACKETS; | |
444 | break; | |
445 | ||
446 | case MODEL_PENPARTNER: | |
447 | cmd = COMMAND_ENABLE_PRESSURE_MODE | |
448 | COMMAND_START_SENDING_PACKETS; | |
449 | break; | |
450 | ||
451 | default: | |
452 | cmd = COMMAND_MULTI_MODE_INPUT | |
453 | COMMAND_ORIGIN_IN_UPPER_LEFT | |
454 | COMMAND_ENABLE_ALL_MACRO_BUTTONS | |
455 | COMMAND_DISABLE_GROUP_1_MACRO_BUTTONS | |
456 | COMMAND_TRANSMIT_AT_MAX_RATE | |
457 | COMMAND_DISABLE_INCREMENTAL_MODE | |
458 | COMMAND_ENABLE_CONTINUOUS_MODE | |
459 | COMMAND_Z_FILTER | |
460 | COMMAND_START_SENDING_PACKETS; | |
461 | break; | |
462 | } | |
463 | ||
464 | return wacom_send(serio, cmd); | |
465 | } | |
466 | ||
467 | static int wacom_send_and_wait(struct wacom *wacom, struct serio *serio, | |
468 | const u8 *cmd, const char *desc) | |
469 | { | |
470 | int err; | |
471 | unsigned long u; | |
472 | ||
473 | wacom->expect = cmd[1]; | |
474 | init_completion(&wacom->cmd_done); | |
475 | ||
476 | err = wacom_send(serio, cmd); | |
477 | if (err) | |
478 | return err; | |
479 | ||
480 | u = wait_for_completion_timeout(&wacom->cmd_done, HZ); | |
481 | if (u == 0) { | |
482 | /* Timeout, process what we've received. */ | |
483 | wacom_handle_response(wacom); | |
484 | } | |
485 | ||
486 | wacom->expect = 0; | |
487 | return wacom->result; | |
488 | } | |
489 | ||
490 | static int wacom_setup(struct wacom *wacom, struct serio *serio) | |
491 | { | |
492 | int err; | |
493 | ||
494 | /* Note that setting the link speed is the job of inputattach. | |
495 | * We assume that reset negotiation has already happened, | |
496 | * here. */ | |
497 | err = wacom_send_and_wait(wacom, serio, REQUEST_MODEL_AND_ROM_VERSION, | |
498 | "model and version"); | |
499 | if (err) | |
500 | return err; | |
501 | ||
502 | if (!(wacom->res_x && wacom->res_y)) { | |
503 | err = wacom_send_and_wait(wacom, serio, | |
504 | REQUEST_CONFIGURATION_STRING, | |
505 | "configuration string"); | |
506 | if (err) | |
507 | return err; | |
508 | } | |
509 | ||
510 | if (!(wacom->max_x && wacom->max_y)) { | |
511 | err = wacom_send_and_wait(wacom, serio, | |
512 | REQUEST_MAX_COORDINATES, | |
513 | "coordinates string"); | |
514 | if (err) | |
515 | return err; | |
516 | } | |
517 | ||
518 | return wacom_send_setup_string(wacom, serio); | |
519 | } | |
520 | ||
521 | static int wacom_connect(struct serio *serio, struct serio_driver *drv) | |
522 | { | |
523 | struct wacom *wacom; | |
524 | struct input_dev *input_dev; | |
525 | int err = -ENOMEM; | |
526 | ||
527 | wacom = kzalloc(sizeof(struct wacom), GFP_KERNEL); | |
528 | input_dev = input_allocate_device(); | |
529 | if (!wacom || !input_dev) | |
530 | goto free_device; | |
531 | ||
532 | wacom->dev = input_dev; | |
533 | wacom->extra_z_bits = 1; | |
534 | wacom->eraser_mask = 0x04; | |
535 | wacom->tool = wacom->idx = 0; | |
536 | snprintf(wacom->phys, sizeof(wacom->phys), "%s/input0", serio->phys); | |
537 | input_dev->phys = wacom->phys; | |
538 | input_dev->id.bustype = BUS_RS232; | |
539 | input_dev->id.vendor = SERIO_WACOM_IV; | |
540 | input_dev->id.product = serio->id.extra; | |
541 | input_dev->dev.parent = &serio->dev; | |
542 | ||
543 | input_dev->evbit[0] = | |
544 | BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS) | BIT_MASK(EV_REL); | |
545 | set_bit(ABS_MISC, input_dev->absbit); | |
546 | set_bit(BTN_TOOL_PEN, input_dev->keybit); | |
547 | set_bit(BTN_TOOL_RUBBER, input_dev->keybit); | |
548 | set_bit(BTN_TOOL_MOUSE, input_dev->keybit); | |
549 | set_bit(BTN_TOUCH, input_dev->keybit); | |
550 | set_bit(BTN_STYLUS, input_dev->keybit); | |
551 | set_bit(BTN_LEFT, input_dev->keybit); | |
552 | set_bit(BTN_RIGHT, input_dev->keybit); | |
553 | set_bit(BTN_MIDDLE, input_dev->keybit); | |
554 | ||
555 | serio_set_drvdata(serio, wacom); | |
556 | ||
557 | err = serio_open(serio, drv); | |
558 | if (err) | |
559 | goto free_device; | |
560 | ||
561 | err = wacom_setup(wacom, serio); | |
562 | if (err) | |
563 | goto close_serio; | |
564 | ||
565 | set_bit(INPUT_PROP_DIRECT, input_dev->propbit); | |
566 | if (!(wacom->flags & F_COVERS_SCREEN)) | |
567 | __set_bit(INPUT_PROP_POINTER, input_dev->propbit); | |
568 | ||
569 | if (wacom->flags & F_HAS_STYLUS2) | |
570 | __set_bit(BTN_STYLUS2, input_dev->keybit); | |
571 | ||
572 | if (wacom->flags & F_HAS_SCROLLWHEEL) | |
573 | __set_bit(REL_WHEEL, input_dev->relbit); | |
574 | ||
575 | input_abs_set_res(wacom->dev, ABS_X, wacom->res_x); | |
576 | input_abs_set_res(wacom->dev, ABS_Y, wacom->res_y); | |
577 | input_set_abs_params(wacom->dev, ABS_X, 0, wacom->max_x, 0, 0); | |
578 | input_set_abs_params(wacom->dev, ABS_Y, 0, wacom->max_y, 0, 0); | |
579 | input_set_abs_params(wacom->dev, ABS_PRESSURE, -1, | |
580 | (1 << (7 + wacom->extra_z_bits)) - 1, 0, 0); | |
581 | ||
582 | err = input_register_device(wacom->dev); | |
583 | if (err) | |
584 | goto close_serio; | |
585 | ||
586 | return 0; | |
587 | ||
588 | close_serio: | |
589 | serio_close(serio); | |
590 | free_device: | |
591 | serio_set_drvdata(serio, NULL); | |
592 | input_free_device(input_dev); | |
593 | kfree(wacom); | |
594 | return err; | |
595 | } | |
596 | ||
597 | static struct serio_device_id wacom_serio_ids[] = { | |
598 | { | |
599 | .type = SERIO_RS232, | |
600 | .proto = SERIO_WACOM_IV, | |
601 | .id = SERIO_ANY, | |
602 | .extra = SERIO_ANY, | |
603 | }, | |
604 | { 0 } | |
605 | }; | |
606 | ||
607 | MODULE_DEVICE_TABLE(serio, wacom_serio_ids); | |
608 | ||
609 | static struct serio_driver wacom_drv = { | |
610 | .driver = { | |
611 | .name = "wacom_serial4", | |
612 | }, | |
613 | .description = "Wacom protocol 4 serial tablet driver", | |
614 | .id_table = wacom_serio_ids, | |
615 | .interrupt = wacom_interrupt, | |
616 | .connect = wacom_connect, | |
617 | .disconnect = wacom_disconnect, | |
618 | }; | |
619 | ||
620 | module_serio_driver(wacom_drv); |