Input: whitespace fixes in drivers/usb/input
[linux-2.6.git] / drivers / usb / input / wacom.c
1 /*
2  *  USB Wacom Graphire and Wacom Intuos tablet support
3  *
4  *  Copyright (c) 2000-2004 Vojtech Pavlik      <vojtech@ucw.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  *  Copyright (c) 2001 Frederic Lepied          <flepied@mandrakesoft.com>
11  *  Copyright (c) 2004 Panagiotis Issaris       <panagiotis.issaris@mech.kuleuven.ac.be>
12  *  Copyright (c) 2002-2004 Ping Cheng          <pingc@wacom.com>
13  *
14  *  ChangeLog:
15  *      v0.1 (vp)  - Initial release
16  *      v0.2 (aba) - Support for all buttons / combinations
17  *      v0.3 (vp)  - Support for Intuos added
18  *      v0.4 (sm)  - Support for more Intuos models, menustrip
19  *                      relative mode, proximity.
20  *      v0.5 (vp)  - Big cleanup, nifty features removed,
21  *                      they belong in userspace
22  *      v1.8 (vp)  - Submit URB only when operating, moved to CVS,
23  *                      use input_report_key instead of report_btn and
24  *                      other cleanups
25  *      v1.11 (vp) - Add URB ->dev setting for new kernels
26  *      v1.11 (jb) - Add support for the 4D Mouse & Lens
27  *      v1.12 (de) - Add support for two more inking pen IDs
28  *      v1.14 (vp) - Use new USB device id probing scheme.
29  *                   Fix Wacom Graphire mouse wheel
30  *      v1.18 (vp) - Fix mouse wheel direction
31  *                   Make mouse relative
32  *      v1.20 (fl) - Report tool id for Intuos devices
33  *                 - Multi tools support
34  *                 - Corrected Intuos protocol decoding (airbrush, 4D mouse, lens cursor...)
35  *                 - Add PL models support
36  *                 - Fix Wacom Graphire mouse wheel again
37  *      v1.21 (vp) - Removed protocol descriptions
38  *                 - Added MISC_SERIAL for tool serial numbers
39  *            (gb) - Identify version on module load.
40  *    v1.21.1 (fl) - added Graphire2 support
41  *    v1.21.2 (fl) - added Intuos2 support
42  *                 - added all the PL ids
43  *    v1.21.3 (fl) - added another eraser id from Neil Okamoto
44  *                 - added smooth filter for Graphire from Peri Hankey
45  *                 - added PenPartner support from Olaf van Es
46  *                 - new tool ids from Ole Martin Bjoerndalen
47  *      v1.29 (pc) - Add support for more tablets
48  *                 - Fix pressure reporting
49  *      v1.30 (vp) - Merge 2.4 and 2.5 drivers
50  *                 - Since 2.5 now has input_sync(), remove MSC_SERIAL abuse
51  *                 - Cleanups here and there
52  *    v1.30.1 (pi) - Added Graphire3 support
53  *      v1.40 (pc) - Add support for several new devices, fix eraser reporting, ...
54  */
55
56 /*
57  * This program is free software; you can redistribute it and/or modify
58  * it under the terms of the GNU General Public License as published by
59  * the Free Software Foundation; either version 2 of the License, or
60  * (at your option) any later version.
61  */
62
63 #include <linux/kernel.h>
64 #include <linux/slab.h>
65 #include <linux/input.h>
66 #include <linux/module.h>
67 #include <linux/init.h>
68 #include <linux/usb.h>
69 #include <asm/unaligned.h>
70 #include <asm/byteorder.h>
71
72 /*
73  * Version Information
74  */
75 #define DRIVER_VERSION "v1.40"
76 #define DRIVER_AUTHOR "Vojtech Pavlik <vojtech@ucw.cz>"
77 #define DRIVER_DESC "USB Wacom Graphire and Wacom Intuos tablet driver"
78 #define DRIVER_LICENSE "GPL"
79
80 MODULE_AUTHOR(DRIVER_AUTHOR);
81 MODULE_DESCRIPTION(DRIVER_DESC);
82 MODULE_LICENSE(DRIVER_LICENSE);
83
84 #define USB_VENDOR_ID_WACOM     0x056a
85
86 struct wacom_features {
87         char *name;
88         int pktlen;
89         int x_max;
90         int y_max;
91         int pressure_max;
92         int distance_max;
93         int type;
94         usb_complete_t irq;
95 };
96
97 struct wacom {
98         signed char *data;
99         dma_addr_t data_dma;
100         struct input_dev dev;
101         struct usb_device *usbdev;
102         struct urb *irq;
103         struct wacom_features *features;
104         int tool[2];
105         int open;
106         __u32 serial[2];
107         char phys[32];
108 };
109
110 #define USB_REQ_SET_REPORT      0x09
111 static int usb_set_report(struct usb_interface *intf, unsigned char type,
112                                 unsigned char id, void *buf, int size)
113 {
114         return usb_control_msg(interface_to_usbdev(intf),
115                 usb_sndctrlpipe(interface_to_usbdev(intf), 0),
116                 USB_REQ_SET_REPORT, USB_TYPE_CLASS | USB_RECIP_INTERFACE,
117                 (type << 8) + id, intf->altsetting[0].desc.bInterfaceNumber,
118                 buf, size, 1000);
119 }
120
121 static void wacom_pl_irq(struct urb *urb, struct pt_regs *regs)
122 {
123         struct wacom *wacom = urb->context;
124         unsigned char *data = wacom->data;
125         struct input_dev *dev = &wacom->dev;
126         int prox, pressure;
127         int retval;
128
129         switch (urb->status) {
130         case 0:
131                 /* success */
132                 break;
133         case -ECONNRESET:
134         case -ENOENT:
135         case -ESHUTDOWN:
136                 /* this urb is terminated, clean up */
137                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
138                 return;
139         default:
140                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
141                 goto exit;
142         }
143
144         if (data[0] != 2) {
145                 dbg("wacom_pl_irq: received unknown report #%d", data[0]);
146                 goto exit;
147         }
148
149         prox = data[1] & 0x40;
150
151         input_regs(dev, regs);
152
153         if (prox) {
154
155                 pressure = (signed char)((data[7] << 1) | ((data[4] >> 2) & 1));
156                 if (wacom->features->pressure_max > 255)
157                         pressure = (pressure << 1) | ((data[4] >> 6) & 1);
158                 pressure += (wacom->features->pressure_max + 1) / 2;
159
160                 /*
161                  * if going from out of proximity into proximity select between the eraser
162                  * and the pen based on the state of the stylus2 button, choose eraser if
163                  * pressed else choose pen. if not a proximity change from out to in, send
164                  * an out of proximity for previous tool then a in for new tool.
165                  */
166                 if (!wacom->tool[0]) {
167                         /* Going into proximity select tool */
168                         wacom->tool[1] = (data[4] & 0x20)? BTN_TOOL_RUBBER : BTN_TOOL_PEN;
169                 }
170                 else {
171                         /* was entered with stylus2 pressed */
172                         if (wacom->tool[1] == BTN_TOOL_RUBBER && !(data[4] & 0x20) ) {
173                                 /* report out proximity for previous tool */
174                                 input_report_key(dev, wacom->tool[1], 0);
175                                 input_sync(dev);
176                                 wacom->tool[1] = BTN_TOOL_PEN;
177                                 goto exit;
178                         }
179                 }
180                 if (wacom->tool[1] != BTN_TOOL_RUBBER) {
181                         /* Unknown tool selected default to pen tool */
182                         wacom->tool[1] = BTN_TOOL_PEN;
183                 }
184                 input_report_key(dev, wacom->tool[1], prox); /* report in proximity for tool */
185                 input_report_abs(dev, ABS_X, data[3] | ((__u32)data[2] << 7) | ((__u32)(data[1] & 0x03) << 14));
186                 input_report_abs(dev, ABS_Y, data[6] | ((__u32)data[5] << 7) | ((__u32)(data[4] & 0x03) << 14));
187                 input_report_abs(dev, ABS_PRESSURE, pressure);
188
189                 input_report_key(dev, BTN_TOUCH, data[4] & 0x08);
190                 input_report_key(dev, BTN_STYLUS, data[4] & 0x10);
191                 /* Only allow the stylus2 button to be reported for the pen tool. */
192                 input_report_key(dev, BTN_STYLUS2, (wacom->tool[1] == BTN_TOOL_PEN) && (data[4] & 0x20));
193         }
194         else {
195                 /* report proximity-out of a (valid) tool */
196                 if (wacom->tool[1] != BTN_TOOL_RUBBER) {
197                         /* Unknown tool selected default to pen tool */
198                         wacom->tool[1] = BTN_TOOL_PEN;
199                 }
200                 input_report_key(dev, wacom->tool[1], prox);
201         }
202
203         wacom->tool[0] = prox; /* Save proximity state */
204         input_sync(dev);
205
206 exit:
207         retval = usb_submit_urb (urb, GFP_ATOMIC);
208         if (retval)
209                 err ("%s - usb_submit_urb failed with result %d",
210                      __FUNCTION__, retval);
211 }
212
213 static void wacom_ptu_irq(struct urb *urb, struct pt_regs *regs)
214 {
215         struct wacom *wacom = urb->context;
216         unsigned char *data = wacom->data;
217         struct input_dev *dev = &wacom->dev;
218         int retval;
219
220         switch (urb->status) {
221         case 0:
222                 /* success */
223                 break;
224         case -ECONNRESET:
225         case -ENOENT:
226         case -ESHUTDOWN:
227                 /* this urb is terminated, clean up */
228                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
229                 return;
230         default:
231                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
232                 goto exit;
233         }
234
235         if (data[0] != 2)
236         {
237                 printk(KERN_INFO "wacom_ptu_irq: received unknown report #%d\n", data[0]);
238                 goto exit;
239         }
240
241         input_regs(dev, regs);
242         if (data[1] & 0x04)
243         {
244                 input_report_key(dev, BTN_TOOL_RUBBER, data[1] & 0x20);
245                 input_report_key(dev, BTN_TOUCH, data[1] & 0x08);
246         }
247         else
248         {
249                 input_report_key(dev, BTN_TOOL_PEN, data[1] & 0x20);
250                 input_report_key(dev, BTN_TOUCH, data[1] & 0x01);
251         }
252         input_report_abs(dev, ABS_X, le16_to_cpu(*(__le16 *) &data[2]));
253         input_report_abs(dev, ABS_Y, le16_to_cpu(*(__le16 *) &data[4]));
254         input_report_abs(dev, ABS_PRESSURE, le16_to_cpu(*(__le16 *) &data[6]));
255         input_report_key(dev, BTN_STYLUS, data[1] & 0x02);
256         input_report_key(dev, BTN_STYLUS2, data[1] & 0x10);
257
258         input_sync(dev);
259
260 exit:
261         retval = usb_submit_urb (urb, GFP_ATOMIC);
262         if (retval)
263                 err ("%s - usb_submit_urb failed with result %d",
264                      __FUNCTION__, retval);
265 }
266
267 static void wacom_penpartner_irq(struct urb *urb, struct pt_regs *regs)
268 {
269         struct wacom *wacom = urb->context;
270         unsigned char *data = wacom->data;
271         struct input_dev *dev = &wacom->dev;
272         int retval;
273
274         switch (urb->status) {
275         case 0:
276                 /* success */
277                 break;
278         case -ECONNRESET:
279         case -ENOENT:
280         case -ESHUTDOWN:
281                 /* this urb is terminated, clean up */
282                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
283                 return;
284         default:
285                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
286                 goto exit;
287         }
288
289         if (data[0] != 2) {
290                 printk(KERN_INFO "wacom_penpartner_irq: received unknown report #%d\n", data[0]);
291                 goto exit;
292         }
293
294         input_regs(dev, regs);
295         input_report_key(dev, BTN_TOOL_PEN, 1);
296         input_report_abs(dev, ABS_X, le16_to_cpu(*(__le16 *) &data[1]));
297         input_report_abs(dev, ABS_Y, le16_to_cpu(*(__le16 *) &data[3]));
298         input_report_abs(dev, ABS_PRESSURE, (signed char)data[6] + 127);
299         input_report_key(dev, BTN_TOUCH, ((signed char)data[6] > -80) && !(data[5] & 0x20));
300         input_report_key(dev, BTN_STYLUS, (data[5] & 0x40));
301         input_sync(dev);
302
303 exit:
304         retval = usb_submit_urb (urb, GFP_ATOMIC);
305         if (retval)
306                 err ("%s - usb_submit_urb failed with result %d",
307                      __FUNCTION__, retval);
308 }
309
310 static void wacom_graphire_irq(struct urb *urb, struct pt_regs *regs)
311 {
312         struct wacom *wacom = urb->context;
313         unsigned char *data = wacom->data;
314         struct input_dev *dev = &wacom->dev;
315         int x, y;
316         int retval;
317
318         switch (urb->status) {
319         case 0:
320                 /* success */
321                 break;
322         case -ECONNRESET:
323         case -ENOENT:
324         case -ESHUTDOWN:
325                 /* this urb is terminated, clean up */
326                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
327                 return;
328         default:
329                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
330                 goto exit;
331         }
332
333         if (data[0] != 2) {
334                 dbg("wacom_graphire_irq: received unknown report #%d", data[0]);
335                 goto exit;
336         }
337
338         x = le16_to_cpu(*(__le16 *) &data[2]);
339         y = le16_to_cpu(*(__le16 *) &data[4]);
340
341         input_regs(dev, regs);
342
343         switch ((data[1] >> 5) & 3) {
344
345                 case 0: /* Pen */
346                         input_report_key(dev, BTN_TOOL_PEN, data[1] & 0x80);
347                         break;
348
349                 case 1: /* Rubber */
350                         input_report_key(dev, BTN_TOOL_RUBBER, data[1] & 0x80);
351                         break;
352
353                 case 2: /* Mouse with wheel */
354                         input_report_key(dev, BTN_MIDDLE, data[1] & 0x04);
355                         input_report_rel(dev, REL_WHEEL, (signed char) data[6]);
356                         /* fall through */
357
358                 case 3: /* Mouse without wheel */
359                         input_report_key(dev, BTN_TOOL_MOUSE, data[7] > 24);
360                         input_report_key(dev, BTN_LEFT, data[1] & 0x01);
361                         input_report_key(dev, BTN_RIGHT, data[1] & 0x02);
362                         input_report_abs(dev, ABS_DISTANCE, data[7]);
363
364                         input_report_abs(dev, ABS_X, x);
365                         input_report_abs(dev, ABS_Y, y);
366
367                         input_sync(dev);
368                         goto exit;
369         }
370
371         if (data[1] & 0x80) {
372                 input_report_abs(dev, ABS_X, x);
373                 input_report_abs(dev, ABS_Y, y);
374         }
375
376         input_report_abs(dev, ABS_PRESSURE, le16_to_cpu(*(__le16 *) &data[6]));
377         input_report_key(dev, BTN_TOUCH, data[1] & 0x01);
378         input_report_key(dev, BTN_STYLUS, data[1] & 0x02);
379         input_report_key(dev, BTN_STYLUS2, data[1] & 0x04);
380
381         input_sync(dev);
382
383 exit:
384         retval = usb_submit_urb (urb, GFP_ATOMIC);
385         if (retval)
386                 err ("%s - usb_submit_urb failed with result %d",
387                      __FUNCTION__, retval);
388 }
389
390 static int wacom_intuos_inout(struct urb *urb)
391 {
392         struct wacom *wacom = urb->context;
393         unsigned char *data = wacom->data;
394         struct input_dev *dev = &wacom->dev;
395         int idx;
396
397         /* tool number */
398         idx = data[1] & 0x01;
399
400         /* Enter report */
401         if ((data[1] & 0xfc) == 0xc0)
402         {
403                 /* serial number of the tool */
404                 wacom->serial[idx] = ((__u32)(data[3] & 0x0f) << 28) +
405                         ((__u32)data[4] << 20) + ((__u32)data[5] << 12) +
406                         ((__u32)data[6] << 4) + (data[7] >> 4);
407
408                 switch (((__u32)data[2] << 4) | (data[3] >> 4)) {
409                         case 0x812: /* Inking pen */
410                         case 0x801: /* Intuos3 Inking pen */
411                         case 0x012:
412                                 wacom->tool[idx] = BTN_TOOL_PENCIL;
413                                 break;
414                         case 0x822: /* Pen */
415                         case 0x842:
416                         case 0x852:
417                         case 0x823: /* Intuos3 Grip Pen */
418                         case 0x813: /* Intuos3 Classic Pen */
419                         case 0x885: /* Intuos3 Marker Pen */
420                         case 0x022:
421                                 wacom->tool[idx] = BTN_TOOL_PEN;
422                                 break;
423                         case 0x832: /* Stroke pen */
424                         case 0x032:
425                                 wacom->tool[idx] = BTN_TOOL_BRUSH;
426                                 break;
427                         case 0x007: /* Mouse 4D and 2D */
428                         case 0x09c:
429                         case 0x094:
430                         case 0x017: /* Intuos3 2D Mouse */
431                                 wacom->tool[idx] = BTN_TOOL_MOUSE;
432                                 break;
433                         case 0x096: /* Lens cursor */
434                         case 0x097: /* Intuos3 Lens cursor */
435                                 wacom->tool[idx] = BTN_TOOL_LENS;
436                                 break;
437                         case 0x82a: /* Eraser */
438                         case 0x85a:
439                         case 0x91a:
440                         case 0xd1a:
441                         case 0x0fa:
442                         case 0x82b: /* Intuos3 Grip Pen Eraser */
443                         case 0x81b: /* Intuos3 Classic Pen Eraser */
444                         case 0x91b: /* Intuos3 Airbrush Eraser */
445                                 wacom->tool[idx] = BTN_TOOL_RUBBER;
446                                 break;
447                         case 0xd12:
448                         case 0x912:
449                         case 0x112:
450                         case 0x913: /* Intuos3 Airbrush */
451                                 wacom->tool[idx] = BTN_TOOL_AIRBRUSH;
452                                 break;  /* Airbrush */
453                         default: /* Unknown tool */
454                                 wacom->tool[idx] = BTN_TOOL_PEN;
455                 }
456                 input_report_key(dev, wacom->tool[idx], 1);
457                 input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
458                 input_sync(dev);
459                 return 1;
460         }
461
462         /* Exit report */
463         if ((data[1] & 0xfe) == 0x80) {
464                 input_report_key(dev, wacom->tool[idx], 0);
465                 input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
466                 input_sync(dev);
467                 return 1;
468         }
469
470         return 0;
471 }
472
473 static void wacom_intuos_general(struct urb *urb)
474 {
475         struct wacom *wacom = urb->context;
476         unsigned char *data = wacom->data;
477         struct input_dev *dev = &wacom->dev;
478         unsigned int t;
479
480         /* general pen packet */
481         if ((data[1] & 0xb8) == 0xa0)
482         {
483                 t = ((__u32)data[6] << 2) | ((data[7] >> 6) & 3);
484                 input_report_abs(dev, ABS_PRESSURE, t);
485                 input_report_abs(dev, ABS_TILT_X,
486                                 ((data[7] << 1) & 0x7e) | (data[8] >> 7));
487                 input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f);
488                 input_report_key(dev, BTN_STYLUS, data[1] & 2);
489                 input_report_key(dev, BTN_STYLUS2, data[1] & 4);
490                 input_report_key(dev, BTN_TOUCH, t > 10);
491         }
492
493         /* airbrush second packet */
494         if ((data[1] & 0xbc) == 0xb4)
495         {
496                 input_report_abs(dev, ABS_WHEEL,
497                                 ((__u32)data[6] << 2) | ((data[7] >> 6) & 3));
498                 input_report_abs(dev, ABS_TILT_X,
499                                 ((data[7] << 1) & 0x7e) | (data[8] >> 7));
500                 input_report_abs(dev, ABS_TILT_Y, data[8] & 0x7f);
501         }
502         return;
503 }
504
505 static void wacom_intuos_irq(struct urb *urb, struct pt_regs *regs)
506 {
507         struct wacom *wacom = urb->context;
508         unsigned char *data = wacom->data;
509         struct input_dev *dev = &wacom->dev;
510         unsigned int t;
511         int idx;
512         int retval;
513
514         switch (urb->status) {
515         case 0:
516                 /* success */
517                 break;
518         case -ECONNRESET:
519         case -ENOENT:
520         case -ESHUTDOWN:
521                 /* this urb is terminated, clean up */
522                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
523                 return;
524         default:
525                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
526                 goto exit;
527         }
528
529         if (data[0] != 2 && data[0] != 5 && data[0] != 6) {
530                 dbg("wacom_intuos_irq: received unknown report #%d", data[0]);
531                 goto exit;
532         }
533
534         input_regs(dev, regs);
535
536         /* tool number */
537         idx = data[1] & 0x01;
538
539         /* process in/out prox events */
540         if (wacom_intuos_inout(urb)) goto exit;
541
542         input_report_abs(dev, ABS_X, be16_to_cpu(*(__be16 *) &data[2]));
543         input_report_abs(dev, ABS_Y, be16_to_cpu(*(__be16 *) &data[4]));
544         input_report_abs(dev, ABS_DISTANCE, data[9]);
545
546         /* process general packets */
547         wacom_intuos_general(urb);
548
549         if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0) {             /* 4D mouse or Lens cursor packets */
550
551                 if (data[1] & 0x02) {                                           /* Rotation packet */
552
553                         t = ((__u32)data[6] << 3) | ((data[7] >> 5) & 7);
554                         input_report_abs(dev, ABS_RZ, (data[7] & 0x20) ? ((t - 1) / 2) : -t / 2);
555
556                 } else {
557
558                         if ((data[1] & 0x10) == 0) {                            /* 4D mouse packets */
559
560                                 input_report_key(dev, BTN_LEFT,   data[8] & 0x01);
561                                 input_report_key(dev, BTN_MIDDLE, data[8] & 0x02);
562                                 input_report_key(dev, BTN_RIGHT,  data[8] & 0x04);
563
564                                 input_report_key(dev, BTN_SIDE,   data[8] & 0x20);
565                                 input_report_key(dev, BTN_EXTRA,  data[8] & 0x10);
566                                 t = ((__u32)data[6] << 2) | ((data[7] >> 6) & 3);
567                                 input_report_abs(dev, ABS_THROTTLE, (data[8] & 0x08) ? -t : t);
568
569                         } else {
570                                 if (wacom->tool[idx] == BTN_TOOL_MOUSE) {       /* 2D mouse packets */
571                                         input_report_key(dev, BTN_LEFT,   data[8] & 0x04);
572                                         input_report_key(dev, BTN_MIDDLE, data[8] & 0x08);
573                                         input_report_key(dev, BTN_RIGHT,  data[8] & 0x10);
574                                         input_report_rel(dev, REL_WHEEL,
575                                             (-(__u32)(data[8] & 0x01) + (__u32)((data[8] & 0x02) >> 1)));
576                                 }
577                                 else {     /* Lens cursor packets */
578                                         input_report_key(dev, BTN_LEFT,   data[8] & 0x01);
579                                         input_report_key(dev, BTN_MIDDLE, data[8] & 0x02);
580                                         input_report_key(dev, BTN_RIGHT,  data[8] & 0x04);
581                                         input_report_key(dev, BTN_SIDE,   data[8] & 0x10);
582                                         input_report_key(dev, BTN_EXTRA,  data[8] & 0x08);
583                                 }
584                         }
585                 }
586         }
587
588         input_report_key(dev, wacom->tool[idx], 1);
589         input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
590         input_sync(dev);
591
592 exit:
593         retval = usb_submit_urb (urb, GFP_ATOMIC);
594         if (retval)
595                 err ("%s - usb_submit_urb failed with result %d",
596                      __FUNCTION__, retval);
597 }
598
599 static void wacom_intuos3_irq(struct urb *urb, struct pt_regs *regs)
600 {
601         struct wacom *wacom = urb->context;
602         unsigned char *data = wacom->data;
603         struct input_dev *dev = &wacom->dev;
604         unsigned int t;
605         int idx, retval;
606
607         switch (urb->status) {
608         case 0:
609                 /* success */
610                 break;
611         case -ECONNRESET:
612         case -ENOENT:
613         case -ESHUTDOWN:
614                 /* this urb is terminated, clean up */
615                 dbg("%s - urb shutting down with status: %d", __FUNCTION__, urb->status);
616                 return;
617         default:
618                 dbg("%s - nonzero urb status received: %d", __FUNCTION__, urb->status);
619                 goto exit;
620         }
621
622         /* check for valid report */
623         if (data[0] != 2 && data[0] != 5 && data[0] != 12)
624         {
625                 printk(KERN_INFO "wacom_intuos3_irq: received unknown report #%d\n", data[0]);
626                 goto exit;
627         }
628
629         input_regs(dev, regs);
630
631         /* tool index is always 0 here since there is no dual input tool */
632         idx = data[1] & 0x01;
633
634         /* pad packets. Works as a second tool and is always in prox */
635         if (data[0] == 12)
636         {
637                 /* initiate the pad as a device */
638                 if (wacom->tool[1] != BTN_TOOL_FINGER)
639                 {
640                         wacom->tool[1] = BTN_TOOL_FINGER;
641                         input_report_key(dev, wacom->tool[1], 1);
642                 }
643                 input_report_key(dev, BTN_0, (data[5] & 0x01));
644                 input_report_key(dev, BTN_1, (data[5] & 0x02));
645                 input_report_key(dev, BTN_2, (data[5] & 0x04));
646                 input_report_key(dev, BTN_3, (data[5] & 0x08));
647                 input_report_key(dev, BTN_4, (data[6] & 0x01));
648                 input_report_key(dev, BTN_5, (data[6] & 0x02));
649                 input_report_key(dev, BTN_6, (data[6] & 0x04));
650                 input_report_key(dev, BTN_7, (data[6] & 0x08));
651                 input_report_abs(dev, ABS_RX, ((data[1] & 0x1f) << 8) | data[2]);
652                 input_report_abs(dev, ABS_RY, ((data[3] & 0x1f) << 8) | data[4]);
653                 input_event(dev, EV_MSC, MSC_SERIAL, 0xffffffff);
654                 input_sync(dev);
655                 goto exit;
656         }
657
658         /* process in/out prox events */
659         if (wacom_intuos_inout(urb)) goto exit;
660
661         input_report_abs(dev, ABS_X, ((__u32)data[2] << 9) | ((__u32)data[3] << 1) | ((data[9] >> 1) & 1));
662         input_report_abs(dev, ABS_Y, ((__u32)data[4] << 9) | ((__u32)data[5] << 1) | (data[9] & 1));
663         input_report_abs(dev, ABS_DISTANCE, ((data[9] >> 2) & 0x3f));
664
665         /* process general packets */
666         wacom_intuos_general(urb);
667
668         if ((data[1] & 0xbc) == 0xa8 || (data[1] & 0xbe) == 0xb0)
669         {
670                 /* Marker pen rotation packet. Reported as wheel due to valuator limitation */
671                 if (data[1] & 0x02)
672                 {
673                         t = ((__u32)data[6] << 3) | ((data[7] >> 5) & 7);
674                         t = (data[7] & 0x20) ? ((t > 900) ? ((t-1) / 2 - 1350) :
675                                 ((t-1) / 2 + 450)) : (450 - t / 2) ;
676                         input_report_abs(dev, ABS_WHEEL, t);
677                 }
678
679                 /* 2D mouse packets */
680                 if (wacom->tool[idx] == BTN_TOOL_MOUSE)
681                 {
682                         input_report_key(dev, BTN_LEFT,   data[8] & 0x04);
683                         input_report_key(dev, BTN_MIDDLE, data[8] & 0x08);
684                         input_report_key(dev, BTN_RIGHT,  data[8] & 0x10);
685                         input_report_key(dev, BTN_SIDE,   data[8] & 0x40);
686                         input_report_key(dev, BTN_EXTRA,  data[8] & 0x20);
687                         /* mouse wheel is positive when rolled backwards */
688                         input_report_rel(dev, REL_WHEEL,  ((__u32)((data[8] & 0x02) >> 1)
689                                          - (__u32)(data[8] & 0x01)));
690                 }
691         }
692
693         input_report_key(dev, wacom->tool[idx], 1);
694         input_event(dev, EV_MSC, MSC_SERIAL, wacom->serial[idx]);
695         input_sync(dev);
696
697 exit:
698         retval = usb_submit_urb (urb, GFP_ATOMIC);
699         if (retval)
700                 err ("%s - usb_submit_urb failed with result %d",
701                     __FUNCTION__, retval);
702 }
703
704 static struct wacom_features wacom_features[] = {
705         { "Wacom Penpartner",    7,   5040,  3780,  255, 32, 0, wacom_penpartner_irq },
706         { "Wacom Graphire",      8,  10206,  7422,  511, 32, 1, wacom_graphire_irq },
707         { "Wacom Graphire2 4x5", 8,  10206,  7422,  511, 32, 1, wacom_graphire_irq },
708         { "Wacom Graphire2 5x7", 8,  13918, 10206,  511, 32, 1, wacom_graphire_irq },
709         { "Wacom Graphire3",     8,  10208,  7424,  511, 32, 1, wacom_graphire_irq },
710         { "Wacom Graphire3 6x8", 8,  16704, 12064,  511, 32, 1, wacom_graphire_irq },
711         { "Wacom Intuos 4x5",   10,  12700, 10600, 1023, 15, 2, wacom_intuos_irq },
712         { "Wacom Intuos 6x8",   10,  20320, 16240, 1023, 15, 2, wacom_intuos_irq },
713         { "Wacom Intuos 9x12",  10,  30480, 24060, 1023, 15, 2, wacom_intuos_irq },
714         { "Wacom Intuos 12x12", 10,  30480, 31680, 1023, 15, 2, wacom_intuos_irq },
715         { "Wacom Intuos 12x18", 10,  45720, 31680, 1023, 15, 2, wacom_intuos_irq },
716         { "Wacom PL400",         8,   5408,  4056,  255, 32, 3, wacom_pl_irq },
717         { "Wacom PL500",         8,   6144,  4608,  255, 32, 3, wacom_pl_irq },
718         { "Wacom PL600",         8,   6126,  4604,  255, 32, 3, wacom_pl_irq },
719         { "Wacom PL600SX",       8,   6260,  5016,  255, 32, 3, wacom_pl_irq },
720         { "Wacom PL550",         8,   6144,  4608,  511, 32, 3, wacom_pl_irq },
721         { "Wacom PL800",         8,   7220,  5780,  511, 32, 3, wacom_pl_irq },
722         { "Wacom Intuos2 4x5",   10, 12700, 10600, 1023, 15, 2, wacom_intuos_irq },
723         { "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 15, 2, wacom_intuos_irq },
724         { "Wacom Intuos2 9x12",  10, 30480, 24060, 1023, 15, 2, wacom_intuos_irq },
725         { "Wacom Intuos2 12x12", 10, 30480, 31680, 1023, 15, 2, wacom_intuos_irq },
726         { "Wacom Intuos2 12x18", 10, 45720, 31680, 1023, 15, 2, wacom_intuos_irq },
727         { "Wacom Volito",        8,   5104,  3712,  511, 32, 1, wacom_graphire_irq },
728         { "Wacom Cintiq Partner",8,  20480, 15360,  511, 32, 3, wacom_ptu_irq },
729         { "Wacom Intuos3 4x5",   10, 25400, 20320, 1023, 15, 4, wacom_intuos3_irq },
730         { "Wacom Intuos3 6x8",   10, 40640, 30480, 1023, 15, 4, wacom_intuos3_irq },
731         { "Wacom Intuos3 9x12",  10, 60960, 45720, 1023, 15, 4, wacom_intuos3_irq },
732         { "Wacom Intuos2 6x8",   10, 20320, 16240, 1023, 15, 2, wacom_intuos_irq },
733         { }
734 };
735
736 static struct usb_device_id wacom_ids[] = {
737         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x00) },
738         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x10) },
739         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x11) },
740         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x12) },
741         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x13) },
742         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x14) },
743         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x20) },
744         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x21) },
745         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x22) },
746         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x23) },
747         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x24) },
748         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x30) },
749         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x31) },
750         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x32) },
751         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x33) },
752         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x34) },
753         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x35) },
754         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x41) },
755         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x42) },
756         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x43) },
757         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x44) },
758         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x45) },
759         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x60) },
760         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x03) },
761         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB0) },
762         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB1) },
763         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0xB2) },
764         { USB_DEVICE(USB_VENDOR_ID_WACOM, 0x47) },
765         { }
766 };
767
768 MODULE_DEVICE_TABLE(usb, wacom_ids);
769
770 static int wacom_open(struct input_dev *dev)
771 {
772         struct wacom *wacom = dev->private;
773
774         if (wacom->open++)
775                 return 0;
776
777         wacom->irq->dev = wacom->usbdev;
778         if (usb_submit_urb(wacom->irq, GFP_KERNEL)) {
779                 wacom->open--;
780                 return -EIO;
781         }
782
783         return 0;
784 }
785
786 static void wacom_close(struct input_dev *dev)
787 {
788         struct wacom *wacom = dev->private;
789
790         if (!--wacom->open)
791                 usb_kill_urb(wacom->irq);
792 }
793
794 static int wacom_probe(struct usb_interface *intf, const struct usb_device_id *id)
795 {
796         struct usb_device *dev = interface_to_usbdev(intf);
797         struct usb_endpoint_descriptor *endpoint;
798         char rep_data[2] = {0x02, 0x02};
799         struct wacom *wacom;
800         char path[64];
801
802         if (!(wacom = kmalloc(sizeof(struct wacom), GFP_KERNEL)))
803                 return -ENOMEM;
804         memset(wacom, 0, sizeof(struct wacom));
805
806         wacom->data = usb_buffer_alloc(dev, 10, GFP_KERNEL, &wacom->data_dma);
807         if (!wacom->data) {
808                 kfree(wacom);
809                 return -ENOMEM;
810         }
811
812         wacom->irq = usb_alloc_urb(0, GFP_KERNEL);
813         if (!wacom->irq) {
814                 usb_buffer_free(dev, 10, wacom->data, wacom->data_dma);
815                 kfree(wacom);
816                 return -ENOMEM;
817         }
818
819         wacom->features = wacom_features + (id - wacom_ids);
820
821         wacom->dev.evbit[0] |= BIT(EV_KEY) | BIT(EV_ABS);
822         wacom->dev.absbit[0] |= BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
823         wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_PEN) | BIT(BTN_TOUCH) | BIT(BTN_STYLUS);
824
825         switch (wacom->features->type) {
826                 case 1:
827                         wacom->dev.evbit[0] |= BIT(EV_REL);
828                         wacom->dev.relbit[0] |= BIT(REL_WHEEL);
829                         wacom->dev.absbit[0] |= BIT(ABS_DISTANCE);
830                         wacom->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
831                         wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_STYLUS2);
832                         break;
833
834                 case 4: /* new functions for Intuos3 */
835                         wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_FINGER);
836                         wacom->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_0) | BIT(BTN_1) | BIT(BTN_2) | BIT(BTN_3) | BIT(BTN_4) | BIT(BTN_5) | BIT(BTN_6) | BIT(BTN_7);
837                         wacom->dev.absbit[0] |= BIT(ABS_RX) | BIT(ABS_RY);
838                         /* fall through */
839
840                 case 2:
841                         wacom->dev.evbit[0] |= BIT(EV_MSC) | BIT(EV_REL);
842                         wacom->dev.mscbit[0] |= BIT(MSC_SERIAL);
843                         wacom->dev.relbit[0] |= BIT(REL_WHEEL);
844                         wacom->dev.keybit[LONG(BTN_LEFT)] |= BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE) | BIT(BTN_SIDE) | BIT(BTN_EXTRA);
845                         wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_TOOL_RUBBER) | BIT(BTN_TOOL_MOUSE) | BIT(BTN_TOOL_BRUSH)
846                                                           | BIT(BTN_TOOL_PENCIL) | BIT(BTN_TOOL_AIRBRUSH) | BIT(BTN_TOOL_LENS) | BIT(BTN_STYLUS2);
847                         wacom->dev.absbit[0] |= BIT(ABS_DISTANCE) | BIT(ABS_WHEEL) | BIT(ABS_TILT_X) | BIT(ABS_TILT_Y) | BIT(ABS_RZ) | BIT(ABS_THROTTLE);
848                         break;
849
850                 case 3:
851                         wacom->dev.keybit[LONG(BTN_DIGI)] |= BIT(BTN_STYLUS2) | BIT(BTN_TOOL_RUBBER);
852                         break;
853         }
854
855         wacom->dev.absmax[ABS_X] = wacom->features->x_max;
856         wacom->dev.absmax[ABS_Y] = wacom->features->y_max;
857         wacom->dev.absmax[ABS_PRESSURE] = wacom->features->pressure_max;
858         wacom->dev.absmax[ABS_DISTANCE] = wacom->features->distance_max;
859         wacom->dev.absmax[ABS_TILT_X] = 127;
860         wacom->dev.absmax[ABS_TILT_Y] = 127;
861         wacom->dev.absmax[ABS_WHEEL] = 1023;
862
863         wacom->dev.absmax[ABS_RX] = 4097;
864         wacom->dev.absmax[ABS_RY] = 4097;
865         wacom->dev.absmin[ABS_RZ] = -900;
866         wacom->dev.absmax[ABS_RZ] = 899;
867         wacom->dev.absmin[ABS_THROTTLE] = -1023;
868         wacom->dev.absmax[ABS_THROTTLE] = 1023;
869
870         wacom->dev.absfuzz[ABS_X] = 4;
871         wacom->dev.absfuzz[ABS_Y] = 4;
872
873         wacom->dev.private = wacom;
874         wacom->dev.open = wacom_open;
875         wacom->dev.close = wacom_close;
876
877         usb_make_path(dev, path, 64);
878         sprintf(wacom->phys, "%s/input0", path);
879
880         wacom->dev.name = wacom->features->name;
881         wacom->dev.phys = wacom->phys;
882         wacom->dev.id.bustype = BUS_USB;
883         wacom->dev.id.vendor = le16_to_cpu(dev->descriptor.idVendor);
884         wacom->dev.id.product = le16_to_cpu(dev->descriptor.idProduct);
885         wacom->dev.id.version = le16_to_cpu(dev->descriptor.bcdDevice);
886         wacom->dev.dev = &intf->dev;
887         wacom->usbdev = dev;
888
889         endpoint = &intf->cur_altsetting->endpoint[0].desc;
890
891         if (wacom->features->pktlen > 10)
892                 BUG();
893
894         usb_fill_int_urb(wacom->irq, dev,
895                          usb_rcvintpipe(dev, endpoint->bEndpointAddress),
896                          wacom->data, wacom->features->pktlen,
897                          wacom->features->irq, wacom, endpoint->bInterval);
898         wacom->irq->transfer_dma = wacom->data_dma;
899         wacom->irq->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
900
901         input_register_device(&wacom->dev);
902
903         /* ask the tablet to report tablet data */
904         usb_set_report(intf, 3, 2, rep_data, 2);
905         /* repeat once (not sure why the first call often fails) */
906         usb_set_report(intf, 3, 2, rep_data, 2);
907
908         printk(KERN_INFO "input: %s on %s\n", wacom->features->name, path);
909
910         usb_set_intfdata(intf, wacom);
911
912         return 0;
913 }
914
915 static void wacom_disconnect(struct usb_interface *intf)
916 {
917         struct wacom *wacom = usb_get_intfdata (intf);
918
919         usb_set_intfdata(intf, NULL);
920         if (wacom) {
921                 usb_kill_urb(wacom->irq);
922                 input_unregister_device(&wacom->dev);
923                 usb_free_urb(wacom->irq);
924                 usb_buffer_free(interface_to_usbdev(intf), 10, wacom->data, wacom->data_dma);
925                 kfree(wacom);
926         }
927 }
928
929 static struct usb_driver wacom_driver = {
930         .owner =        THIS_MODULE,
931         .name =         "wacom",
932         .probe =        wacom_probe,
933         .disconnect =   wacom_disconnect,
934         .id_table =     wacom_ids,
935 };
936
937 static int __init wacom_init(void)
938 {
939         int result = usb_register(&wacom_driver);
940         if (result == 0)
941                 info(DRIVER_VERSION ":" DRIVER_DESC);
942         return result;
943 }
944
945 static void __exit wacom_exit(void)
946 {
947         usb_deregister(&wacom_driver);
948 }
949
950 module_init(wacom_init);
951 module_exit(wacom_exit);