xref: /haiku/src/add-ons/input_server/devices/wacom/TabletDevice.cpp (revision cac30e419035ddd49010a81c59f65b68e4919ce1)
1 /*
2  * Copyright 2003-2008 Stephan Aßmus <superstippi@gmx.de>. All rights reserved.
3  * Distributed under the terms of the MIT license.
4  *
5  * Copyright 2000-2002  Olaf van Es. All Rights Reserved.
6  * Distributed under the terms of the MIT license.
7  *
8  * These people have added and tested device ids:
9  *
10  *		Frans van Nispen	<frans@xentronix.com>
11  *		Stefan Werner		<stefan@keindesign.de>
12  *		Hiroyuki Tsutsumi	<???>
13  *		Jeroen Oortwijn		<oortwijn@gmail.com>
14  * 		Calvin Hill			<calvin@hakobaito.co.uk>
15  */
16 
17 #include <stdio.h>
18 #include <stdlib.h>
19 #include <string.h>
20 
21 #include <File.h>
22 #include <InterfaceDefs.h>
23 #include <Screen.h>
24 #include <View.h>
25 
26 #include "DeviceReader.h"
27 #include "MasterServerDevice.h"
28 
29 #include "TabletDevice.h"
30 
31 #define SNOOZE_AMOUNT 2500
32 #define JITTER_X .0007
33 #define JITTER_Y .0007
34 #define ACCELERATION_KICK_IN 2.3
35 
36 // constructor
37 TabletDevice::TabletDevice(MasterServerDevice* parent, DeviceReader* reader)
38 	: PointingDevice(parent, reader),
39 	  fThreadID(B_ERROR),
40 	  fDeviceMode(DEVICE_UNKOWN),
41 	  fMaxX(1.0),
42 	  fMaxY(1.0),
43 	  fPosX(0.5),
44 	  fPosY(0.5),
45 	  fFakeMouseX(0.5),
46 	  fFakeMouseY(0.5),
47 	  fButtons(0),
48 	  fPressure(0.0),
49 	  fModifiers(0),
50 	  fEraser(0),
51 	  fTiltX(0.0),
52 	  fTiltY(0.0),
53 	  fClicks(0),
54 	  fHasContact(false)
55 {
56 }
57 
58 // destructor
59 TabletDevice::~TabletDevice()
60 {
61 	// cleanup
62 	Stop();
63 }
64 
65 // InitCheck
66 status_t
67 TabletDevice::InitCheck()
68 {
69 	status_t status = PointingDevice::InitCheck();
70 	if (status >= B_OK)
71 		status = DetectDevice(fReader);
72 	return status;
73 }
74 
75 // Start
76 status_t
77 TabletDevice::Start()
78 {
79 	status_t status = B_NO_INIT;
80 	if (fReader) {
81 		fActive = true;
82 		// get a nice name for our polling thread
83 		const char* name;
84 		_GetName(fReader->ProductID(), &name);
85 		// start generating events
86 		fThreadID = spawn_thread(poll_usb_device, name, 104, this);
87 		if (fThreadID >= B_OK) {
88 			resume_thread(fThreadID);
89 			status = B_OK;
90 		} else
91 			status = fThreadID;
92 	}
93 	return status;
94 }
95 
96 // Stop
97 status_t
98 TabletDevice::Stop()
99 {
100 	status_t err = B_OK;
101 
102 	fActive = false;
103 	if (fThreadID >= B_OK)
104 		wait_for_thread(fThreadID, &err);
105 	fThreadID = B_ERROR;
106 
107 	return err;
108 }
109 
110 // DetectDevice
111 status_t
112 TabletDevice::DetectDevice(const DeviceReader* reader)
113 {
114 	status_t status = B_OK;
115 	switch (reader->ProductID()) {
116 		case 0x00:
117 			SetDevice(5040.0, 3780.0, DEVICE_PENPARTNER);
118 			break;
119 		case 0x03:
120 			SetDevice(2048.0, 15360.0, DEVICE_PL500);
121 			break;
122 		case 0x10:
123 		case 0x11:
124 		case 0x13:
125 			SetDevice(10206.0, 7422.0, DEVICE_GRAPHIRE);
126 			break;
127 		case 0x12:	// Graphire 3 4x5
128 			SetDevice(13918.0, 10206.0, DEVICE_GRAPHIRE);
129 			break;
130 		case 0x14:	// Graphire 3 6x8
131 			SetDevice(16704.0, 12064.0, DEVICE_GRAPHIRE);
132 			break;
133 		case 0x15:	// Graphire 4 4x5 (tested)
134 			SetDevice(10208.0, 7024.0, DEVICE_GRAPHIRE);
135 			break;
136 		case 0x16:	// Graphire 4 6x8 (tested)
137 			SetDevice(16704.0, 12064.0, DEVICE_GRAPHIRE);
138 			break;
139 		case 0x17:	// BambooFun 4x5 (from Linux Wacom Project)
140 			SetDevice(14760.0, 9225.0, DEVICE_BAMBOO);
141 			break;
142 		case 0x18:	// BambooFun 6x8 (from Linux Wacom Project)
143 			SetDevice(21648.0, 13530.0, DEVICE_BAMBOO);
144 			break;
145 		case 0x20:
146 			SetDevice(12700.0, 10600.0, DEVICE_INTUOS);
147 			break;
148 		case 0x21:
149 			SetDevice(20320.0, 16240.0);
150 			break;
151 		case 0x22:
152 			SetDevice(30480.0, 24060.0);
153 			break;
154 		case 0x23:
155 			SetDevice(30480.0, 31680.0);
156 			break;
157 		case 0x24:
158 			SetDevice(45720.0, 31680.0);
159 			break;
160 		case 0x30:
161 			SetDevice(5408.0, 4056.0, DEVICE_PL500);
162 			break;
163 		case 0x31:
164 			SetDevice(6144.0, 4608.0, DEVICE_PL500);
165 			break;
166 		case 0x32:
167 			SetDevice(6126.0, 4604.0, DEVICE_PL500);
168 			break;
169 		case 0x33:
170 			SetDevice(6260.0, 5016.0, DEVICE_PL500);
171 			break;
172 		case 0x34:
173 			SetDevice(6144.0, 4608.0, DEVICE_PL500);
174 			break;
175 		case 0x35:
176 			SetDevice(7220.0, 5780.0, DEVICE_PL500);
177 			break;
178 		case 0x3F:
179 			SetDevice(87200.0, 65600.0, DEVICE_CINTIQ);
180 			break;
181 		case 0x41:
182 			SetDevice(12700.0, 10600.0);
183 			break;
184 		case 0x42:
185 			SetDevice(20320.0, 16240.0);
186 			break;
187 		case 0x43:
188 			SetDevice(30480.0, 24060.0);
189 			break;
190 		case 0x44:
191 			SetDevice(30480.0, 31680.0);
192 			break;
193 		case 0x45:
194 			SetDevice(45720.0, 31680.0);
195 			break;
196 		case 0x47:	// some I2 6x8 report as 0x47
197 			SetDevice(20320.0, 16240.0);
198 			break;
199 		case 0x60:
200 			SetDevice(5104.0, 3712.0, DEVICE_GRAPHIRE);
201 			break;
202 		case 0x61: // PenStation
203 //			SetDevice(3403.0, 2475.0, DEVICE_GRAPHIRE); // this version was untested
204 			SetDevice(3248.0, 2320.0, DEVICE_PENSTATION); // this version came from "beer"
205 			break;
206 		case 0x62: // Volito
207 			SetDevice(5040.0, 3712.0, DEVICE_VOLITO);
208 			break;
209 		case 0x64:	// PenPartner.1
210 //			SetDevice(3450.0, 2100.0, DEVICE_PENSTATION);
211 			SetDevice(3248.0, 2320.0, DEVICE_PENSTATION);
212 			break;
213 		case 0x65:	// Bamboo (from Linux Wacom Project)
214 			SetDevice(14760.0, 9225.0, DEVICE_BAMBOO);
215 			break;
216 		case 0x69:	// Bamboo1 (from Linux Wacom Project)
217 			SetDevice(5104.0,  3712.0, DEVICE_BAMBOO);
218 			break;
219 		case 0xB0:
220 			SetDevice(25400.0, 20320.0, DEVICE_INTUOS3);
221 			break;
222 		case 0xB1:
223 			SetDevice(40640.0, 30480.0, DEVICE_INTUOS3);
224 			break;
225 		case 0xB2:
226 			SetDevice(60960.0, 45720.0, DEVICE_INTUOS3);
227 			break;
228 		case 0xD0:	// Wacom Bamboo 2FG (from Linux Wacom Project)
229 			SetDevice(14720.0, 9200.0, DEVICE_BAMBOO_PT);
230 			break;
231 		case 0xD1:	// Wacom BambooFun 2FG 4x5 (from Linux Wacom Project)
232 			SetDevice(14720.0, 9200.0, DEVICE_BAMBOO_PT);
233 			break;
234 		case 0xD2:	// Wacom Bamboo Craft (from Linux Wacom Project)
235 			SetDevice(14720.0, 9200.0, DEVICE_BAMBOO_PT);
236 			break;
237 		case 0xD3:	// Wacom BambooFun 2FG 6x8 (from Linux Wacom Project)
238 			SetDevice(21648.0, 13530.0, DEVICE_BAMBOO_PT);
239 			break;
240 		case 0xD4:	// Wacom Bamboo 4x5 (from Linux Wacom Project)
241 			SetDevice(14720.0, 9200.0, DEVICE_BAMBOO_PT);
242 			break;
243 		case 0xD6:	// Wacom Bamboo CTH-460/K (from Linux Wacom Project)
244 			SetDevice(14720.0, 9200.0, DEVICE_BAMBOO_PT);
245 			break;
246 		case 0xD7:	// Wacom Bamboo CTH-461/S (from Linux Wacom Project)
247 			SetDevice(14720.0, 9200.0, DEVICE_BAMBOO_PT);
248 			break;
249 		case 0xD8:	// Wacom Bamboo CTH-661/S1 (from Linux Wacom Project)
250 			SetDevice(21648.0, 13530.0, DEVICE_BAMBOO_PT);
251 			break;
252 		case 0xDA:	// Wacom Bamboo CTH-461/L (from Linux Wacom Project)
253 			SetDevice(14720.0, 9200.0, DEVICE_BAMBOO_PT);
254 			break;
255 		case 0xDB:	// Wacom Bamboo CTH-661 (from Linux Wacom Project)
256 			SetDevice(21648.0, 13530.0, DEVICE_BAMBOO_PT);
257 			break;
258 		case 0xDD:	// Wacom Bamboo Pen/Connect (CTL-470) (from Linux Wacom Project)
259 			SetDevice(14720.0, 9200.0, DEVICE_BAMBOO_PT);
260 			break;
261 		default:
262 			status = B_BAD_VALUE;
263 			break;
264 	}
265 	return status;
266 }
267 
268 // SetDevice
269 void
270 TabletDevice::SetDevice(float maxX, float maxY, uint32 mode)
271 {
272 	fDeviceMode = mode;
273 	fMaxX = maxX;
274 	fMaxY = maxY;
275 	fJitterX = JITTER_X;
276 	fJitterY = JITTER_Y;
277 }
278 
279 // ReadData
280 void
281 TabletDevice::ReadData(const uchar* data, int dataBytes, bool& hasContact,
282 	uint32& mode, uint32& buttons, float& x, float& y, float& pressure,
283 	int32& clicks, int32& eraser, float& wheelX, float& wheelY,
284 	float& tiltX, float& tiltY) const
285 {
286 	hasContact = false;
287 	buttons = 0;
288 	mode = MODE_PEN;
289 	bool firstButton = false;
290 	bool secondButton = false;
291 	bool thirdButton = false;
292 	uint16 xPos = 0;
293 	uint16 yPos = 0;
294 
295 	switch (fDeviceMode) {
296 		case DEVICE_PENPARTNER: {
297 			xPos = data[2] << 8 | data[1];
298 			yPos = data[4] << 8 | data[3];
299 
300 			eraser = (data[5] & 0x20);
301 
302 			int8 pressureData = data[6];
303 			pressure = (float)(pressureData + 120) / 240.0;
304 
305 			firstButton = ((pressureData > -80) && !(data[5] & 0x20));
306 			secondButton = (data[5] & 0x40);
307 
308 			hasContact = true;
309 			break;
310 		}
311 		case DEVICE_GRAPHIRE:
312 		case DEVICE_BAMBOO:
313 		{
314 			xPos = data[3] << 8 | data[2];
315 			yPos = data[5] << 8 | data[4];
316 
317 			hasContact = (data[1] & 0x80);
318 
319 			uint16 pressureData = data[7] << 8 | data[6];
320 			pressure = (float)pressureData / 511.0;
321 			eraser = (data[1] & 0x20);
322 
323 			// mouse wheel support
324 			if (data[1] & 0x40) {	// mouse is on tablet!
325 				wheelY = (float)(int8)data[6];
326 				mode = MODE_MOUSE;
327 				// override contact to loose it as soon as possible
328 				// when mouse is lifted from tablet
329 				hasContact = (uint8)data[7] >= 30;
330 				pressure = 0.0;
331 				eraser = 0;
332 			}
333 
334 			firstButton = pressure > 0.0 ? true : (data[1] & 0x01);
335 			secondButton = (data[1] & 0x02);
336 			thirdButton = (data[1] & 0x04);
337 
338 			break;
339 		}
340 		case DEVICE_BAMBOO_PT:
341 		{
342 			if (dataBytes < 20) {	// ignore touch-packets
343 				xPos = data[3] << 8 | data[2];
344 				yPos = data[5] << 8 | data[4];
345 
346 				hasContact = (data[1] & 0x20);
347 
348 				uint16 pressureData = data[7] << 8 | data[6];
349 				pressure = (float)pressureData / 1023.0;
350 				eraser = (data[1] & 0x08);
351 
352 				firstButton = (data[1] & 0x01);
353 				secondButton = (data[1] & 0x02);
354 				thirdButton = (data[1] & 0x04);
355 
356 				break;
357 			}
358 		}
359 		case DEVICE_INTUOS:
360 		case DEVICE_INTUOS3:
361 		case DEVICE_CINTIQ:
362 			if ((data[0] == 0x02) && !(((data[1] >> 5) & 0x03) == 0x02)) {
363 				if (fDeviceMode == DEVICE_INTUOS3) {
364 					xPos = (data[2] << 9) | (data[3] << 1)
365 						| ((data[9] >> 1) & 1);
366 					yPos = (data[4] << 9) | (data[5] << 1) | (data[9] & 1);
367 				} else {
368 					xPos = (data[2] << 8) | data[3];
369 					yPos = (data[4] << 8) | data[5];
370 				}
371 				uint16 pressureData = data[6] << 2 | ((data[7] >> 6) & 0x03);
372 				pressure = (float)pressureData / 1023.0;
373 
374 				// mouse and wheel support
375 				if (data[1] == 0xf0) {	// mouse is on tablet!
376 					mode = MODE_MOUSE;
377 
378 					if (data[8] == 0x02)
379 						wheelY = 1.0;
380 					else if (data[8] == 0x01)
381 						wheelY = -1.0;
382 
383 					firstButton = (data[8] & 0x04);
384 					secondButton = (data[8] & 0x10);
385 					thirdButton = (data[8] & 0x08);
386 
387 					// override contact to loose it as soon as possible
388 					// when mouse is lifted from tablet
389 					hasContact = data[9] <= 0x68;
390 					pressure = 0.0;
391 					eraser = 0;
392 				} else {
393 					firstButton = (data[6] > 2);
394 						// For Intuos it MUST be >1,
395 						// but '>1' still gets false actuations (shaking)
396 					secondButton = (data[1] & 0x02);
397 					thirdButton = (data[1] & 0x04);
398 					hasContact = (data[1] & 0x40);
399 						// TODO: is this meaningful? (always true on Intuos)
400 					if (fDeviceMode == DEVICE_INTUOS) {	// TODO: test perhaps superfluous?
401 						// Original Intuos protocol:
402 						//  data[6] is used to signal use of the eraser,
403 						//  as well as being the high bits of pressure.
404 						//  While not in contact:
405 						//	 If the pen end is lowermost data[6] = 1;
406 						//	 If the eraser end is down data[6] = 0, and pressure is strictly 0
407 						//   data[9] (top 5 bits: 0x70..0xd0) indicates height above the tablet.
408 						eraser = fEraser;
409 							// keep established value unless not touching pad
410 						// Eraser state only valid when away from surface
411 						if (data[6] <= 1 && data[9] > 0x80) { 	// not touching tablet
412 							if (pressureData == 0) eraser = 1;	// strictly 0 means eraser
413 							else if (pressureData > 6) eraser = 0;	// avoid slop
414 						}
415 					}
416 					// Get raw tilt values (0..54..127)
417 					int8 tiltDataX = ((data[7] & 0x3f) << 1) | ((data[8] & 0x80) >> 7);
418 					int8 tiltDataY = data[8] & 0x7f;
419 					// convert to floats
420 					tiltX = (float)(tiltDataX - 64) / 64.0;
421 					tiltY = (float)(tiltDataY - 64) / 64.0;
422 				}
423 			}
424 			break;
425 		case DEVICE_PL500: {
426 			hasContact = ( data[1] & 0x20);
427 			xPos = data[2] << 8 | data[3];
428 			yPos = data[5] << 8 | data[6];
429 			firstButton = (data[4] & 0x08);
430 			secondButton = (data[4] & 0x10);
431 			thirdButton = (data[4] & 0x20);
432 			uint16 pressureData = (data[4] & 0x04) >> 2 | (data[7] & 0x7f) << 1;
433 			pressure = (float)pressureData / 511.0;
434 			break;
435 		}
436 		case DEVICE_VOLITO: {
437 			eraser = 0;
438 			thirdButton = 0;
439 
440 			xPos = data[3] << 8 | data[2];
441 			yPos = data[5] << 8 | data[4];
442 
443 			hasContact = (data[1] & 0x80);
444 
445 			firstButton = (data[1] & 0x01) == 1;
446 			secondButton = data[1] & 0x04;
447 
448 			uint16 pressureData = data[7] << 8 | data[6];
449 			pressure = (float)pressureData / 511.0;
450 
451 			if (data[1] & 0x40) {	// mouse is on tablet
452 				wheelY = 0;
453 				mode = MODE_MOUSE;
454 				hasContact = (uint8)data[7] >= 30;
455 				pressure = 0.0;
456 				secondButton = data[1] & 0x02;
457 			}
458 
459 			break;
460 		}
461 		case DEVICE_PENSTATION: {
462 			xPos = data[3] << 8 | data[2];
463 			yPos = data[5] << 8 | data[4];
464 			hasContact = (data[1] & 0x10);
465 			uint16 pressureData = data[7] << 8 | data[6];
466 			pressure = (float)pressureData / 511.0;
467 			firstButton = (data[1] & 0x01);
468 			secondButton = (data[1] & 0x02);
469 			thirdButton = (data[1] & 0x04);
470 			break;
471 		}
472 	}
473 	if (pressure > 1.0)
474 		pressure = 1.0;
475 	else if (pressure < 0.0)
476 		pressure = 0.0;
477 	buttons = (firstButton ? B_PRIMARY_MOUSE_BUTTON : 0)
478 			   | (secondButton ? B_SECONDARY_MOUSE_BUTTON : 0)
479 			   | (thirdButton ? B_TERTIARY_MOUSE_BUTTON : 0);
480 	x = (float)xPos;
481 	y = (float)yPos;
482 }
483 
484 // SetStatus
485 void
486 TabletDevice::SetStatus(uint32 mode, uint32 buttons, float x, float y,
487 	float pressure, int32 clicks, uint32 modifiers, int32 eraser,
488 	float wheelX, float wheelY, float tiltX, float tiltY, const uchar* data)
489 {
490 	if (fActive) {
491 		uint32 what = B_MOUSE_MOVED;
492 		if (buttons > fButtons)
493 			what = B_MOUSE_DOWN;
494 		else if (buttons < fButtons)
495 			what = B_MOUSE_UP;
496 
497 
498 #if DEBUG
499 	float tabletX = x;
500 	float tabletY = y;
501 #endif
502 		x /= fMaxX;
503 		y /= fMaxY;
504 
505 		float deltaX = 0.0;
506 		float deltaY = 0.0;
507 
508 		float absDeltaX = 0.0;
509 		float absDeltaY = 0.0;
510 
511 		float unfilteredX = x;
512 		float unfilteredY = y;
513 
514 		if (fHasContact) {
515 			deltaX = x - fPosX;
516 			deltaY = y - fPosY;
517 
518 			absDeltaX = fabsf(deltaX);
519 			absDeltaY = fabsf(deltaY);
520 
521 #if 0 //DEBUG
522 fParent->LogString() << "x: " << x << ", y: " << y << ", pressure: " << pressure << "\n";
523 fParent->LogString() << "tilt x: " << tiltX << ", tilt y: " << tiltY << "\n\n";
524 #endif
525 			// apply a bit of filtering
526 			if (absDeltaX < fJitterX)
527 				x = fPosX;
528 			if (absDeltaY < fJitterY)
529 				y = fPosY;
530 		}
531 
532 		// only do send message if something changed
533 		if (x != fPosX || y != fPosY || fButtons != buttons || pressure != fPressure
534 			|| fEraser != eraser || fTiltX != tiltX || fTiltY != tiltY) {
535 
536 			bigtime_t now = system_time();
537 
538 			// common fields for any mouse message
539 			BMessage* event = new BMessage(what);
540 			event->AddInt64("when", now);
541 			event->AddInt32("buttons", buttons);
542 			if (mode == MODE_PEN) {
543 				event->AddFloat("x", x);
544 				event->AddFloat("y", y);
545 				event->AddFloat("be:tablet_x", unfilteredX);
546 				event->AddFloat("be:tablet_y", unfilteredY);
547 				event->AddFloat("be:tablet_pressure", pressure);
548 				event->AddInt32("be:tablet_eraser", eraser);
549 				if (_DeviceSupportsTilt()) {
550 					event->AddFloat("be:tablet_tilt_x", tiltX);
551 					event->AddFloat("be:tablet_tilt_y", tiltY);
552 				}
553 				// adjust mouse coordinates as well
554 				// to have the mouse appear at the pens
555 				// last position when switching
556 				fFakeMouseX = unfilteredX;
557 				fFakeMouseY = unfilteredY;
558 			} else if (mode == MODE_MOUSE) {
559 				// apply acceleration
560 				float accelerationX = fJitterX * ACCELERATION_KICK_IN;
561 //				if (absDeltaX > accelerationX)
562 					deltaX *= absDeltaX / accelerationX;
563 				float accelerationY = fJitterY * ACCELERATION_KICK_IN;
564 //				if (absDeltaY > accelerationY)
565 					deltaY *= absDeltaY / accelerationY;
566 				// calculate screen coordinates
567 				fFakeMouseX = min_c(1.0, max_c(0.0, fFakeMouseX + deltaX));
568 				fFakeMouseY = min_c(1.0, max_c(0.0, fFakeMouseY + deltaY));
569 				event->AddFloat("x", fFakeMouseX);
570 				event->AddFloat("y", fFakeMouseY);
571 				event->AddFloat("be:tablet_x", fFakeMouseX);
572 				event->AddFloat("be:tablet_y", fFakeMouseY);
573 			}
574 			event->AddInt32("modifiers", modifiers);
575 
576 #if DEBUG
577 if (data) {
578 	event->AddData("raw usb data", B_RAW_TYPE, data, 12);
579 }
580 event->AddFloat("tablet x", tabletX);
581 event->AddFloat("tablet y", tabletY);
582 #endif
583 			// additional fields for mouse down or up
584 			if (what == B_MOUSE_DOWN) {
585 				if (now - fLastClickTime < fParent->DoubleClickSpeed()) {
586 					fClicks++;
587 					if (fClicks > 3)
588 						fClicks = 1;
589 				} else {
590 					fClicks = 1;
591 				}
592 				fLastClickTime = now;
593 				event->AddInt32("clicks", fClicks);
594 			} else if (what == B_MOUSE_UP)
595 				event->AddInt32("clicks", 0);
596 
597 			status_t ret = fParent->EnqueueMessage(event);
598 			if (ret < B_OK)
599 				PRINT(("EnqueueMessage(): %s\n", strerror(ret)));
600 
601 			// apply values to members
602 			fPosX = x;
603 			fPosY = y;
604 			fButtons = buttons;
605 			fPressure = pressure;
606 			fModifiers = modifiers;
607 			fEraser = eraser;
608 			fTiltX = tiltX;
609 			fTiltY = tiltY;
610 		}
611 
612 		// separate wheel changed message
613 		if (fWheelX != wheelX || fWheelY != wheelY) {
614 			BMessage* event = new BMessage(B_MOUSE_WHEEL_CHANGED);
615 			event->AddInt64("when", system_time());
616 			event->AddFloat("be:wheel_delta_x", wheelX);
617 			event->AddFloat("be:wheel_delta_y", wheelY);
618 			fParent->EnqueueMessage(event);
619 
620 			// apply values to members
621 			fWheelX = wheelX;
622 			fWheelY = wheelY;
623 		}
624 	}
625 }
626 
627 // SetContact
628 void
629 TabletDevice::SetContact(bool contact)
630 {
631 	fHasContact = contact;
632 }
633 
634 // poll_usb_device
635 int32
636 TabletDevice::poll_usb_device(void* arg)
637 {
638 	TabletDevice* tabletDevice = (TabletDevice*)arg;
639 	DeviceReader* reader = tabletDevice->fReader;
640 
641 	if (!reader || reader->InitCheck() < B_OK)
642 		return B_BAD_VALUE;
643 
644 	int dataBytes = reader->MaxPacketSize();
645 	if (dataBytes > 128)
646 		return B_BAD_VALUE;
647 
648 	uchar data[max_c(12, dataBytes)];
649 
650 	while (tabletDevice->IsActive()) {
651 
652 		status_t ret = reader->ReadData(data, dataBytes);
653 
654 		if (ret == dataBytes) {
655 			// data we read from the wacom device
656 			uint32 mode;
657 			bool hasContact = false;
658 			uint32 buttons = 0;
659 			float x = 0.0;
660 			float y = 0.0;
661 			float pressure = 0.0;
662 			int32 clicks = 0;
663 			int32 eraser = 0;
664 			float wheelX = 0.0;
665 			float wheelY = 0.0;
666 			float tiltX = 0.0;
667 			float tiltY = 0.0;
668 			// let the device extract all information from the data
669 			tabletDevice->ReadData(data, dataBytes, hasContact, mode, buttons,
670 								   x, y, pressure, clicks, eraser,
671 								   wheelX, wheelY, tiltX, tiltY);
672 			if (hasContact) {
673 				// apply the changes to the device
674 				tabletDevice->SetStatus(mode, buttons, x, y, pressure,
675 										clicks, modifiers(), eraser,
676 										wheelX, wheelY, tiltX, tiltY, data);
677 			} else
678 				PRINT(("device has no contact\n"));
679 			tabletDevice->SetContact(hasContact);
680 		} else {
681 			PRINT(("failed to read %ld bytes, read: %ld or %s\n",
682 				dataBytes, ret, strerror(ret)));
683 
684 			if (ret < B_OK) {
685 				if (ret == B_TIMED_OUT)
686 					snooze(SNOOZE_AMOUNT);
687 				else if (ret == B_INTERRUPTED)
688 					snooze(SNOOZE_AMOUNT);
689 				else {
690 					return ret;
691 				}
692 			}
693 		}
694 	}
695 
696 	return B_OK;
697 }
698 
699 // _DeviceSupportsTilt
700 bool
701 TabletDevice::_DeviceSupportsTilt() const
702 {
703 	bool tilt = false;
704 	switch (fDeviceMode) {
705 		case DEVICE_INTUOS:
706 		case DEVICE_INTUOS3:
707 		case DEVICE_CINTIQ:
708 			tilt = true;
709 			break;
710 	}
711 	return tilt;
712 }
713 
714 // _GetName
715 void
716 TabletDevice::_GetName(uint16 productID, const char** name) const
717 {
718 	switch (productID) {
719 		case 0x00:
720 			*name = "Wacom USB";
721 			break;
722 		case 0x03:	// driver does not support this yet
723 			*name = "Wacom Cintiq Partner USB";
724 			break;
725 		case 0x10:
726 			*name = "Wacom Graphire USB";
727 			break;
728 		case 0x11:
729 			*name = "Wacom Graphire2 4x5\" USB";
730 			break;
731 		case 0x12:
732 			*name = "Wacom Graphire2 5x7\" USB";
733 			break;
734 		case 0x13:
735 			*name = "Wacom Graphire3 4x5\" USB";
736 			break;
737 		case 0x14:
738 			*name = "Wacom Graphire3 6x8\" USB";
739 			break;
740 		case 0x15:
741 			*name = "Wacom Graphire4 4x5\" USB";
742 			break;
743 		case 0x16:
744 			*name = "Wacom Graphire4 6x8\" USB";
745 			break;
746 		case 0x17:
747 			*name = "Wacom BambooFun 4x5\" USB";
748 			break;
749 		case 0x18:
750 			*name = "Wacom BambooFun 6x8\" USB";
751 			break;
752 		case 0x20:
753 			*name = "Wacom Intuos 4x5\" USB";
754 			break;
755 		case 0x21:
756 			*name = "Wacom Intuos 6x8\" USB";
757 			break;
758 		case 0x22:
759 			*name = "Wacom Intuos 9x12\" USB";
760 			break;
761 		case 0x23:
762 			*name = "Wacom Intuos 12x12\" USB";
763 			break;
764 		case 0x24:
765 			*name = "Wacom Intuos 12x18\" USB";
766 			break;
767 		case 0x30:
768 			*name = "Wacom PL400 USB";
769 			break;
770 		case 0x31:
771 			*name = "Wacom PL500 USB";
772 			break;
773 		case 0x32:
774 			*name = "Wacom PL600 USB";
775 			break;
776 		case 0x33:
777 			*name = "Wacom PL600SX USB";
778 			break;
779 		case 0x34:
780 			*name = "Wacom PL550 USB";
781 			break;
782 		case 0x35:
783 			*name = "Wacom PL800 USB";
784 			break;
785 
786 		case 0x3F:
787 			*name = "Wacom Cintiq 21UX USB";
788 			break;
789 
790 		case 0x41:
791 			*name = "Wacom Intuos2 4x5\" USB";
792 			break;
793 		case 0x42:
794 			*name = "Wacom Intuos2 6x8\" USB";
795 			break;
796 		case 0x43:
797 			*name = "Wacom Intuos2 9x12\" USB";
798 			break;
799 		case 0x44:
800 			*name = "Wacom Intuos2 12x12\" USB";
801 			break;
802 		case 0x45:
803 			*name = "Wacom Intuos2 12x18\" USB";
804 			break;
805 		case 0x47:	// some I2 6x8s seem to report as 0x47
806 			*name = "Wacom Intuos2 6x8\" USB";
807 			break;
808 
809 		case 0x60:
810 			*name = "Wacom Volito USB";
811 			break;
812 		case 0x61:
813 			*name = "Wacom PenStation USB";
814 			break;
815 		case 0x62:
816 			*name = "Wacom Volito2 USB";
817 			break;
818 		case 0x64:
819 			*name = "Wacom PenPartner.1 USB";
820 			break;
821 		case 0x65:
822 			*name = "Wacom Bamboo USB";
823 			break;
824 		case 0x69:
825 			*name = "Wacom Bamboo1 USB";
826 			break;
827 
828 		case 0xB0:
829 			*name = "Wacom Intuos3 4x5 USB";
830 			break;
831 		case 0xB1:
832 			*name = "Wacom Intuos3 6x8 USB";
833 			break;
834 		case 0xB2:
835 			*name = "Wacom Intuos3 9x12 USB";
836 			break;
837 
838 		case 0xD0:
839 			*name = "Wacom Bamboo 2FG USB";
840 			break;
841 		case 0xD1:
842 			*name = "Wacom BambooFun 2FG 4x5\" USB";
843 			break;
844 		case 0xD2:
845 			*name = "Wacom Bamboo Craft USB";
846 			break;
847 		case 0xD3:
848 			*name = "Wacom BambooFun 2FG 6x8\" USB";
849 			break;
850 		case 0xD4:
851 			*name = "Wacom Bamboo 4x5\" USB";
852 			break;
853 		case 0xD6:
854 			*name = "Wacom Bamboo (CTH-460/K)";
855 			break;
856 		case 0xD7:
857 			*name = "Wacom Bamboo (CTH-461/S)";
858 			break;
859 		case 0xD8:
860 			*name = "Wacom Bamboo (CTH-661/S1)";
861 			break;
862 		case 0xDA:
863 			*name = "Wacom Bamboo (CTH-461/L)";
864 			break;
865 		case 0xDB:
866 			*name = "Wacom Bamboo (CTH-661)";
867 			break;
868 		case 0xDD:
869 			*name = "Wacom Bamboo Pen/Connect (CTL-470)";
870 			break;
871 
872 		default:
873 			*name = "<unkown wacom tablet>";
874 			break;
875 	}
876 }
877 
878