1 /*
2 * $Id: wacom.c,v 1.14 2000/11/23 09:34:32 vojtech Exp $
3 *
4 * Copyright (c) 2000 Vojtech Pavlik <vojtech@suse.cz>
5 * Copyright (c) 2000 Andreas Bach Aaen <abach@stofanet.dk>
6 * Copyright (c) 2000 Clifford Wolf <clifford@clifford.at>
7 * Copyright (c) 2000 Sam Mosel <sam.mosel@computer.org>
8 * Copyright (c) 2000 James E. Blair <corvus@gnu.org>
9 * Copyright (c) 2000 Daniel Egger <egger@suse.de>
10 *
11 * USB Wacom Graphire and Wacom Intuos tablet support
12 *
13 * Sponsored by SuSE
14 *
15 * ChangeLog:
16 * v0.1 (vp) - Initial release
17 * v0.2 (aba) - Support for all buttons / combinations
18 * v0.3 (vp) - Support for Intuos added
19 * v0.4 (sm) - Support for more Intuos models, menustrip
20 * relative mode, proximity.
21 * v0.5 (vp) - Big cleanup, nifty features removed,
22 * they belong in userspace
23 * v1.8 (vp) - Submit URB only when operating, moved to CVS,
24 * use input_report_key instead of report_btn and
25 * other cleanups
26 * v1.11 (vp) - Add URB ->dev setting for new kernels
27 * v1.11 (jb) - Add support for the 4D Mouse & Lens
28 * v1.12 (de) - Add support for two more inking pen IDs
29 * v1.14 (vp) - Use new USB device id probing scheme.
30 * Fix Wacom Graphire mouse wheel
31 */
32
33 /*
34 * This program is free software; you can redistribute it and/or modify
35 * it under the terms of the GNU General Public License as published by
36 * the Free Software Foundation; either version 2 of the License, or
37 * (at your option) any later version.
38 *
39 * This program is distributed in the hope that it will be useful,
40 * but WITHOUT ANY WARRANTY; without even the implied warranty of
41 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
42 * GNU General Public License for more details.
43 *
44 * You should have received a copy of the GNU General Public License
45 * along with this program; if not, write to the Free Software
46 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
47 *
48 * Should you need to contact me, the author, you can do so either by
49 * e-mail - mail your message to <vojtech@suse.cz>, or by paper mail:
50 * Vojtech Pavlik, Ucitelska 1576, Prague 8, 182 00 Czech Republic
51 */
52
53 #include <linux/kernel.h>
54 #include <linux/malloc.h>
55 #include <linux/input.h>
56 #include <linux/module.h>
57 #include <linux/init.h>
58 #include <linux/usb.h>
59
60 MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
61 MODULE_DESCRIPTION("USB Wacom Graphire and Wacom Intuos tablet driver");
62
63 /*
64 * Wacom Graphire packet:
65 *
66 * byte 0: report ID (2)
67 * byte 1: bit7 pointer in range
68 * bit5-6 pointer type 0 - pen, 1 - rubber, 2 - mouse
69 * bit4 1 ?
70 * bit3 0 ?
71 * bit2 mouse middle button / pen button2
72 * bit1 mouse right button / pen button1
73 * bit0 mouse left button / touch
74 * byte 2: X low bits
75 * byte 3: X high bits
76 * byte 4: Y low bits
77 * byte 5: Y high bits
78 * byte 6: pen pressure low bits / mouse wheel
79 * byte 7: pen presure high bits / mouse distance
80 *
81 * There are also two single-byte feature reports (2 and 3).
82 *
83 * Wacom Intuos status packet:
84 *
85 * byte 0: report ID (2)
86 * byte 1: bit7 1 - sync bit
87 * bit6 pointer in range
88 * bit5 pointer type report
89 * bit4 0 ?
90 * bit3 mouse packet type
91 * bit2 pen button2
92 * bit1 pen button1
93 * bit0 0 ?
94 * byte 2: X high bits
95 * byte 3: X low bits
96 * byte 4: Y high bits
97 * byte 5: Y low bits
98 *
99 * Pen packet:
100 *
101 * byte 6: bits 0-7: pressure (bits 2-9)
102 * byte 7: bits 6-7: pressure (bits 0-1)
103 * byte 7: bits 0-5: X tilt (bits 1-6)
104 * byte 8: bit 7: X tilt (bit 0)
105 * byte 8: bits 0-6: Y tilt (bits 0-6)
106 * byte 9: bits 4-7: distance
107 *
108 * Mouse packet type 0:
109 *
110 * byte 6: bits 0-7: wheel (bits 2-9)
111 * byte 7: bits 6-7: wheel (bits 0-1)
112 * byte 7: bits 0-5: 0
113 * byte 8: bits 6-7: 0
114 * byte 8: bit 5: left extra button
115 * byte 8: bit 4: right extra button
116 * byte 8: bit 3: wheel (sign)
117 * byte 8: bit 2: right button
118 * byte 8: bit 1: middle button
119 * byte 8: bit 0: left button
120 * byte 9: bits 4-7: distance
121 *
122 * Mouse packet type 1:
123 *
124 * byte 6: bits 0-7: rotation (bits 2-9)
125 * byte 7: bits 6-7: rotation (bits 0-1)
126 * byte 7: bit 5: rotation (sign)
127 * byte 7: bits 0-4: 0
128 * byte 8: bits 0-7: 0
129 * byte 9: bits 4-7: distance
130 */
131
132 #define USB_VENDOR_ID_WACOM 0x056a
133
134 struct wacom_features {
135 char *name;
136 int pktlen;
137 int x_max;
138 int y_max;
139 int pressure_max;
140 int distance_max;
141 void (*irq)(struct urb *urb);
142 unsigned long evbit;
143 unsigned long absbit;
144 unsigned long relbit;
145 unsigned long btnbit;
146 unsigned long digibit;
147 };
148
149 struct wacom {
150 signed char data[10];
151 struct input_dev dev;
152 struct usb_device *usbdev;
153 struct urb irq;
154 struct wacom_features *features;
155 int tool;
156 int open;
157 };
158
159 static void wacom_graphire_irq(struct urb *urb)
160 {
161 struct wacom *wacom = urb->context;
162 unsigned char *data = wacom->data;
163 struct input_dev *dev = &wacom->dev;
164
165 if (urb->status) return;
166
167 if (data[0] != 2)
168 dbg("received unknown report #%d", data[0]);
169
170 if ( data[1] & 0x80 ) {
171 input_report_abs(dev, ABS_X, data[2] | ((__u32)data[3] << 8));
172 input_report_abs(dev, ABS_Y, data[4] | ((__u32)data[5] << 8));
173 }
174
175 switch ((data[1] >> 5) & 3) {
176
177 case 0: /* Pen */
178 input_report_key(dev, BTN_TOOL_PEN, data[1] & 0x80);
179 break;
180
181 case 1: /* Rubber */
182 input_report_key(dev, BTN_TOOL_RUBBER, data[1] & 0x80);
183 break;
184
185 case 2: /* Mouse */
186 input_report_key(dev, BTN_TOOL_MOUSE, data[7] > 24);
187 input_report_key(dev, BTN_LEFT, data[1] & 0x01);
188 input_report_key(dev, BTN_RIGHT, data[1] & 0x02);
189 input_report_key(dev, BTN_MIDDLE, data[1] & 0x04);
190 input_report_abs(dev, ABS_DISTANCE, data[7]);
191 input_report_rel(dev, REL_WHEEL, (signed char) data[6]);
192 return;
193 }
194
195 input_report_abs(dev, ABS_PRESSURE, data[6] | ((__u32)data[7] << 8));
196
197 input_report_key(dev, BTN_TOUCH, data[1] & 0x01);
198 input_report_key(dev, BTN_STYLUS, data[1] & 0x02);
199 input_report_key(dev, BTN_STYLUS2, data[1] & 0x04);
200 }
201
202 static void wacom_intuos_irq(struct urb *urb)
203 {
204 struct wacom *wacom = urb->context;
205 unsigned char *data = wacom->data;
206 struct input_dev *dev = &wacom->dev;
207 unsigned int t;
208
209 if (urb->status) return;
210
211 if (data[0] != 2)
212 dbg("received unknown report #%d", data[0]);
213
214 if (((data[1] >> 5) & 0x3) == 0x2) { /* Enter report */
215
216 switch (((__u32)data[2] << 4) | (data[3] >> 4)) {
217 case 0x832:
218 case 0x812:
219 case 0x012: wacom->tool = BTN_TOOL_PENCIL; break; /* Inking pen */
220 case 0x822:
221 case 0x022: wacom->tool = BTN_TOOL_PEN; break; /* Pen */
222 case 0x032: wacom->tool = BTN_TOOL_BRUSH; break; /* Stroke pen */
223 case 0x094: wacom->tool = BTN_TOOL_MOUSE; break; /* Mouse 4D */
224 case 0x096: wacom->tool = BTN_TOOL_LENS; break; /* Lens cursor */
225 case 0x82a:
226 case 0x0fa: wacom->tool = BTN_TOOL_RUBBER; break; /* Eraser */
227 case 0x112: wacom->tool = BTN_TOOL_AIRBRUSH; break; /* Airbrush */
228 default: wacom->tool = BTN_TOOL_PEN; break; /* Unknown tool */
229 }
230 input_report_key(dev, wacom->tool, 1);
231 return;
232 }
233
234 if ((data[1] | data[2] | data[3] | data[4] | data[5] |
235 data[6] | data[7] | data[8] | data[9]) == 0x80) { /* Exit report */
236 input_report_key(dev, wacom->tool, 0);
237 return;
238 }
239
240 input_report_abs(dev, ABS_X, ((__u32)data[2] << 8) | data[3]);
241 input_report_abs(dev, ABS_Y, ((__u32)data[4] << 8) | data[5]);
242 input_report_abs(dev, ABS_DISTANCE, data[9] >> 4);
243
244 switch (wacom->tool) {
245
246 case BTN_TOOL_PENCIL:
247 case BTN_TOOL_PEN:
248 case BTN_TOOL_BRUSH:
249 case BTN_TOOL_RUBBER:
250 case BTN_TOOL_AIRBRUSH:
251
252 input_report_abs(dev, ABS_PRESSURE, t = ((__u32)data[6] << 2) | ((data[7] >> 6) & 3));
253 input_report_abs(dev, ABS_TILT_X, ((data[7] << 1) & 0x7e) | (data[8] >> 7));
254 input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f);
255 input_report_key(dev, BTN_STYLUS, data[1] & 2);
256 input_report_key(dev, BTN_STYLUS2, data[1] & 4);
257 input_report_key(dev, BTN_TOUCH, t > 10);
258 break;
259
260 case BTN_TOOL_MOUSE:
261 case BTN_TOOL_LENS:
262
263 if (data[1] & 0x02) { /* Rotation packet */
264 input_report_abs(dev, ABS_RZ, (data[7] & 0x20) ?
265 ((__u32)data[6] << 2) | ((data[7] >> 6) & 3):
266 (-(((__u32)data[6] << 2) | ((data[7] >> 6) & 3))) - 1);
267 break;
268 }
269
270 input_report_key(dev, BTN_LEFT, data[8] & 0x01);
271 input_report_key(dev, BTN_MIDDLE, data[8] & 0x02);
272 input_report_key(dev, BTN_RIGHT, data[8] & 0x04);
273 input_report_key(dev, BTN_SIDE, data[8] & 0x20);
274 input_report_key(dev, BTN_EXTRA, data[8] & 0x10);
275 input_report_abs(dev, ABS_THROTTLE, (data[8] & 0x08) ?
276 ((__u32)data[6] << 2) | ((data[7] >> 6) & 3) :
277 -((__u32)data[6] << 2) | ((data[7] >> 6) & 3));
278 break;
279 }
280 }
281
282 #define WACOM_INTUOS_TOOLS (BIT(BTN_TOOL_BRUSH) | BIT(BTN_TOOL_PENCIL) | BIT(BTN_TOOL_AIRBRUSH) | BIT(BTN_TOOL_LENS))
283 #define WACOM_INTUOS_BUTTONS (BIT(BTN_SIDE) | BIT(BTN_EXTRA))
284 #define WACOM_INTUOS_ABS (BIT(ABS_TILT_X) | BIT(ABS_TILT_Y) | BIT(ABS_RZ) | BIT(ABS_THROTTLE))
285
286 struct wacom_features wacom_features[] = {
287 { "Wacom Graphire", 8, 10206, 7422, 511, 32, wacom_graphire_irq,
288 BIT(EV_REL), 0, REL_WHEEL, 0 },
289 { "Wacom Intuos 4x5", 10, 12700, 10360, 1023, 15, wacom_intuos_irq,
290 0, WACOM_INTUOS_ABS, 0, WACOM_INTUOS_BUTTONS, WACOM_INTUOS_TOOLS },
291 { "Wacom Intuos 6x8", 10, 20320, 15040, 1023, 15, wacom_intuos_irq,
292 0, WACOM_INTUOS_ABS, 0, WACOM_INTUOS_BUTTONS, WACOM_INTUOS_TOOLS },
293 { "Wacom Intuos 9x12", 10, 30480, 23060, 1023, 15, wacom_intuos_irq,
294 0, WACOM_INTUOS_ABS, 0, WACOM_INTUOS_BUTTONS, WACOM_INTUOS_TOOLS },
295 { "Wacom Intuos 12x12", 10, 30480, 30480, 1023, 15, wacom_intuos_irq,
296 0, WACOM_INTUOS_ABS, 0, WACOM_INTUOS_BUTTONS, WACOM_INTUOS_TOOLS },
297 { "Wacom Intuos 12x18", 10, 47720, 30480, 1023, 15, wacom_intuos_irq,
298 0, WACOM_INTUOS_ABS, 0, WACOM_INTUOS_BUTTONS, WACOM_INTUOS_TOOLS },
299 { NULL , 0 }
300 };
301
302 struct usb_device_id wacom_ids[] = {
303 { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x10), driver_info: 0 },
304 { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x20), driver_info: 1 },
305 { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x21), driver_info: 2 },
306 { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x22), driver_info: 3 },
307 { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x23), driver_info: 4 },
308 { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x24), driver_info: 5 },
309 { }
310 };
311
312 MODULE_DEVICE_TABLE(usb, wacom_ids);
313
314 static int wacom_open(struct input_dev *dev)
315 {
316 struct wacom *wacom = dev->private;
317
318 if (wacom->open++)
319 return 0;
320
321 wacom->irq.dev = wacom->usbdev;
322 if (usb_submit_urb(&wacom->irq))
323 return -EIO;
324
325 return 0;
326 }
327
328 static void wacom_close(struct input_dev *dev)
329 {
330 struct wacom *wacom = dev->private;
331
332 if (!--wacom->open)
333 usb_unlink_urb(&wacom->irq);
334 }
335
336 static void *wacom_probe(struct usb_device *dev, unsigned int ifnum, const struct usb_device_id *id)
337 {
338 struct usb_endpoint_descriptor *endpoint;
339 struct wacom *wacom;
340
341 if (!(wacom = kmalloc(sizeof(struct wacom), GFP_KERNEL))) return NULL;
342 memset(wacom, 0, sizeof(struct wacom));
343
344 wacom->features = wacom_features + id->driver_info;
345
346 wacom->dev.evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS) | wacom->features->evbit;
347 wacom->dev.absbit[0] |= BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE) | BIT(ABS_DISTANCE) | wacom->features->absbit;
348 wacom->dev.relbit[0] |= wacom->features->relbit;
349 wacom->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE) | wacom->features->btnbit;
350 wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) | BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) |
351 BIT(BTN_TOUCH) | BIT(BTN_STYLUS) | BIT(BTN_STYLUS2) | wacom->features->digibit;
352
353 wacom->dev.absmax[ABS_X] = wacom->features->x_max;
354 wacom->dev.absmax[ABS_Y] = wacom->features->y_max;
355 wacom->dev.absmax[ABS_PRESSURE] = wacom->features->pressure_max;
356 wacom->dev.absmax[ABS_DISTANCE] = wacom->features->distance_max;
357 wacom->dev.absmax[ABS_TILT_X] = 127;
358 wacom->dev.absmax[ABS_TILT_Y] = 127;
359
360 wacom->dev.absmin[ABS_RZ] = -900;
361 wacom->dev.absmax[ABS_RZ] = 899;
362 wacom->dev.absmin[ABS_THROTTLE] = -1023;
363 wacom->dev.absmax[ABS_THROTTLE] = 1023;
364
365 wacom->dev.absfuzz[ABS_X] = 4;
366 wacom->dev.absfuzz[ABS_Y] = 4;
367
368 wacom->dev.private = wacom;
369 wacom->dev.open = wacom_open;
370 wacom->dev.close = wacom_close;
371
372 wacom->dev.name = wacom->features->name;
373 wacom->dev.idbus = BUS_USB;
374 wacom->dev.idvendor = dev->descriptor.idVendor;
375 wacom->dev.idproduct = dev->descriptor.idProduct;
376 wacom->dev.idversion = dev->descriptor.bcdDevice;
377 wacom->usbdev = dev;
378
379 endpoint = dev->config[0].interface[ifnum].altsetting[0].endpoint + 0;
380
381 FILL_INT_URB(&wacom->irq, dev, usb_rcvintpipe(dev, endpoint->bEndpointAddress),
382 wacom->data, wacom->features->pktlen, wacom->features->irq, wacom, endpoint->bInterval);
383
384 input_register_device(&wacom->dev);
385
386 printk(KERN_INFO "input%d: %s on usb%d:%d.%d\n",
387 wacom->dev.number, wacom->features->name, dev->bus->busnum, dev->devnum, ifnum);
388
389 return wacom;
390 }
391
392 static void wacom_disconnect(struct usb_device *dev, void *ptr)
393 {
394 struct wacom *wacom = ptr;
395 usb_unlink_urb(&wacom->irq);
396 input_unregister_device(&wacom->dev);
397 kfree(wacom);
398 }
399
400 static struct usb_driver wacom_driver = {
401 name: "wacom",
402 probe: wacom_probe,
403 disconnect: wacom_disconnect,
404 id_table: wacom_ids,
405 };
406
407 static int __init wacom_init(void)
408 {
409 usb_register(&wacom_driver);
410 return 0;
411 }
412
413 static void __exit wacom_exit(void)
414 {
415 usb_deregister(&wacom_driver);
416 }
417
418 module_init(wacom_init);
419 module_exit(wacom_exit);
420
This page was automatically generated by the
LXR engine.
Visit the LXR main site for more
information.