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i2c-eg20t: change timeout value 50msec to 1000msec
[zen-stable.git] / drivers / input / tablet / aiptek.c
blob205d16aab441990283afd4f0068f97b106dcd198
1 /*
2 * Native support for the Aiptek HyperPen USB Tablets
3 * (4000U/5000U/6000U/8000U/12000U)
4 *
5 * Copyright (c) 2001 Chris Atenasio <chris@crud.net>
6 * Copyright (c) 2002-2004 Bryan W. Headley <bwheadley@earthlink.net>
7 *
8 * based on wacom.c by
9 * Vojtech Pavlik <vojtech@suse.cz>
10 * Andreas Bach Aaen <abach@stofanet.dk>
11 * Clifford Wolf <clifford@clifford.at>
12 * Sam Mosel <sam.mosel@computer.org>
13 * James E. Blair <corvus@gnu.org>
14 * Daniel Egger <egger@suse.de>
15 *
16 * Many thanks to Oliver Kuechemann for his support.
17 *
18 * ChangeLog:
19 * v0.1 - Initial release
20 * v0.2 - Hack to get around fake event 28's. (Bryan W. Headley)
21 * v0.3 - Make URB dynamic (Bryan W. Headley, Jun-8-2002)
22 * Released to Linux 2.4.19 and 2.5.x
23 * v0.4 - Rewrote substantial portions of the code to deal with
24 * corrected control sequences, timing, dynamic configuration,
25 * support of 6000U - 12000U, procfs, and macro key support
26 * (Jan-1-2003 - Feb-5-2003, Bryan W. Headley)
27 * v1.0 - Added support for diagnostic messages, count of messages
28 * received from URB - Mar-8-2003, Bryan W. Headley
29 * v1.1 - added support for tablet resolution, changed DV and proximity
30 * some corrections - Jun-22-2003, martin schneebacher
31 * - Added support for the sysfs interface, deprecating the
32 * procfs interface for 2.5.x kernel. Also added support for
33 * Wheel command. Bryan W. Headley July-15-2003.
34 * v1.2 - Reworked jitter timer as a kernel thread.
35 * Bryan W. Headley November-28-2003/Jan-10-2004.
36 * v1.3 - Repaired issue of kernel thread going nuts on single-processor
37 * machines, introduced programmableDelay as a command line
38 * parameter. Feb 7 2004, Bryan W. Headley.
39 * v1.4 - Re-wire jitter so it does not require a thread. Courtesy of
40 * Rene van Paassen. Added reporting of physical pointer device
41 * (e.g., stylus, mouse in reports 2, 3, 4, 5. We don't know
42 * for reports 1, 6.)
43 * what physical device reports for reports 1, 6.) Also enabled
44 * MOUSE and LENS tool button modes. Renamed "rubber" to "eraser".
45 * Feb 20, 2004, Bryan W. Headley.
46 * v1.5 - Added previousJitterable, so we don't do jitter delay when the
47 * user is holding a button down for periods of time.
48 *
49 * NOTE:
50 * This kernel driver is augmented by the "Aiptek" XFree86 input
51 * driver for your X server, as well as the Gaiptek GUI Front-end
52 * "Tablet Manager".
53 * These three products are highly interactive with one another,
54 * so therefore it's easier to document them all as one subsystem.
55 * Please visit the project's "home page", located at,
56 * http://aiptektablet.sourceforge.net.
57 *
58 * This program is free software; you can redistribute it and/or modify
59 * it under the terms of the GNU General Public License as published by
60 * the Free Software Foundation; either version 2 of the License, or
61 * (at your option) any later version.
62 *
63 * This program is distributed in the hope that it will be useful,
64 * but WITHOUT ANY WARRANTY; without even the implied warranty of
65 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
66 * GNU General Public License for more details.
67 *
68 * You should have received a copy of the GNU General Public License
69 * along with this program; if not, write to the Free Software
70 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
71 */
72
73 #include <linux/jiffies.h>
74 #include <linux/kernel.h>
75 #include <linux/slab.h>
76 #include <linux/module.h>
77 #include <linux/init.h>
78 #include <linux/usb/input.h>
79 #include <asm/uaccess.h>
80 #include <asm/unaligned.h>
81
82 /*
83 * Version Information
84 */
85 #define DRIVER_VERSION "v2.3 (May 2, 2007)"
86 #define DRIVER_AUTHOR "Bryan W. Headley/Chris Atenasio/Cedric Brun/Rene van Paassen"
87 #define DRIVER_DESC "Aiptek HyperPen USB Tablet Driver (Linux 2.6.x)"
88
89 /*
90 * Aiptek status packet:
91 *
92 * (returned as Report 1 - relative coordinates from mouse and stylus)
93 *
94 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
95 * byte0 0 0 0 0 0 0 0 1
96 * byte1 0 0 0 0 0 BS2 BS Tip
97 * byte2 X7 X6 X5 X4 X3 X2 X1 X0
98 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
99 *
100 * (returned as Report 2 - absolute coordinates from the stylus)
101 *
102 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
103 * byte0 0 0 0 0 0 0 1 0
104 * byte1 X7 X6 X5 X4 X3 X2 X1 X0
105 * byte2 X15 X14 X13 X12 X11 X10 X9 X8
106 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
107 * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8
108 * byte5 * * * BS2 BS1 Tip IR DV
109 * byte6 P7 P6 P5 P4 P3 P2 P1 P0
110 * byte7 P15 P14 P13 P12 P11 P10 P9 P8
111 *
112 * (returned as Report 3 - absolute coordinates from the mouse)
113 *
114 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
115 * byte0 0 0 0 0 0 0 1 1
116 * byte1 X7 X6 X5 X4 X3 X2 X1 X0
117 * byte2 X15 X14 X13 X12 X11 X10 X9 X8
118 * byte3 Y7 Y6 Y5 Y4 Y3 Y2 Y1 Y0
119 * byte4 Y15 Y14 Y13 Y12 Y11 Y10 Y9 Y8
120 * byte5 * * * BS2 BS1 Tip IR DV
121 * byte6 P7 P6 P5 P4 P3 P2 P1 P0
122 * byte7 P15 P14 P13 P12 P11 P10 P9 P8
123 *
124 * (returned as Report 4 - macrokeys from the stylus)
125 *
126 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
127 * byte0 0 0 0 0 0 1 0 0
128 * byte1 0 0 0 BS2 BS Tip IR DV
129 * byte2 0 0 0 0 0 0 1 0
130 * byte3 0 0 0 K4 K3 K2 K1 K0
131 * byte4 P7 P6 P5 P4 P3 P2 P1 P0
132 * byte5 P15 P14 P13 P12 P11 P10 P9 P8
133 *
134 * (returned as Report 5 - macrokeys from the mouse)
135 *
136 * bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
137 * byte0 0 0 0 0 0 1 0 1
138 * byte1 0 0 0 BS2 BS Tip IR DV
139 * byte2 0 0 0 0 0 0 1 0
140 * byte3 0 0 0 K4 K3 K2 K1 K0
141 * byte4 P7 P6 P5 P4 P3 P2 P1 P0
142 * byte5 P15 P14 P13 P12 P11 P10 P9 P8
143 *
144 * IR: In Range = Proximity on
145 * DV = Data Valid
146 * BS = Barrel Switch (as in, macro keys)
147 * BS2 also referred to as Tablet Pick
148 *
149 * Command Summary:
150 *
151 * Use report_type CONTROL (3)
152 * Use report_id 2
153 *
154 * Command/Data Description Return Bytes Return Value
155 * 0x10/0x00 SwitchToMouse 0
156 * 0x10/0x01 SwitchToTablet 0
157 * 0x18/0x04 SetResolution 0
158 * 0x12/0xFF AutoGainOn 0
159 * 0x17/0x00 FilterOn 0
160 * 0x01/0x00 GetXExtension 2 MaxX
161 * 0x01/0x01 GetYExtension 2 MaxY
162 * 0x02/0x00 GetModelCode 2 ModelCode = LOBYTE
163 * 0x03/0x00 GetODMCode 2 ODMCode
164 * 0x08/0x00 GetPressureLevels 2 =512
165 * 0x04/0x00 GetFirmwareVersion 2 Firmware Version
166 * 0x11/0x02 EnableMacroKeys 0
167 *
168 * To initialize the tablet:
169 *
170 * (1) Send Resolution500LPI (Command)
171 * (2) Query for Model code (Option Report)
172 * (3) Query for ODM code (Option Report)
173 * (4) Query for firmware (Option Report)
174 * (5) Query for GetXExtension (Option Report)
175 * (6) Query for GetYExtension (Option Report)
176 * (7) Query for GetPressureLevels (Option Report)
177 * (8) SwitchToTablet for Absolute coordinates, or
178 * SwitchToMouse for Relative coordinates (Command)
179 * (9) EnableMacroKeys (Command)
180 * (10) FilterOn (Command)
181 * (11) AutoGainOn (Command)
182 *
183 * (Step 9 can be omitted, but you'll then have no function keys.)
184 */
185
186 #define USB_VENDOR_ID_AIPTEK 0x08ca
187 #define USB_VENDOR_ID_KYE 0x0458
188 #define USB_REQ_GET_REPORT 0x01
189 #define USB_REQ_SET_REPORT 0x09
190
191 /* PointerMode codes
192 */
193 #define AIPTEK_POINTER_ONLY_MOUSE_MODE 0
194 #define AIPTEK_POINTER_ONLY_STYLUS_MODE 1
195 #define AIPTEK_POINTER_EITHER_MODE 2
196
197 #define AIPTEK_POINTER_ALLOW_MOUSE_MODE(a) \
198 (a == AIPTEK_POINTER_ONLY_MOUSE_MODE || \
199 a == AIPTEK_POINTER_EITHER_MODE)
200 #define AIPTEK_POINTER_ALLOW_STYLUS_MODE(a) \
201 (a == AIPTEK_POINTER_ONLY_STYLUS_MODE || \
202 a == AIPTEK_POINTER_EITHER_MODE)
203
204 /* CoordinateMode code
205 */
206 #define AIPTEK_COORDINATE_RELATIVE_MODE 0
207 #define AIPTEK_COORDINATE_ABSOLUTE_MODE 1
208
209 /* XTilt and YTilt values
210 */
211 #define AIPTEK_TILT_MIN (-128)
212 #define AIPTEK_TILT_MAX 127
213 #define AIPTEK_TILT_DISABLE (-10101)
214
215 /* Wheel values
216 */
217 #define AIPTEK_WHEEL_MIN 0
218 #define AIPTEK_WHEEL_MAX 1024
219 #define AIPTEK_WHEEL_DISABLE (-10101)
220
221 /* ToolCode values, which BTW are 0x140 .. 0x14f
222 * We have things set up such that if the tool button has changed,
223 * the tools get reset.
224 */
225 /* toolMode codes
226 */
227 #define AIPTEK_TOOL_BUTTON_PEN_MODE BTN_TOOL_PEN
228 #define AIPTEK_TOOL_BUTTON_PENCIL_MODE BTN_TOOL_PENCIL
229 #define AIPTEK_TOOL_BUTTON_BRUSH_MODE BTN_TOOL_BRUSH
230 #define AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE BTN_TOOL_AIRBRUSH
231 #define AIPTEK_TOOL_BUTTON_ERASER_MODE BTN_TOOL_RUBBER
232 #define AIPTEK_TOOL_BUTTON_MOUSE_MODE BTN_TOOL_MOUSE
233 #define AIPTEK_TOOL_BUTTON_LENS_MODE BTN_TOOL_LENS
234
235 /* Diagnostic message codes
236 */
237 #define AIPTEK_DIAGNOSTIC_NA 0
238 #define AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE 1
239 #define AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE 2
240 #define AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED 3
241
242 /* Time to wait (in ms) to help mask hand jittering
243 * when pressing the stylus buttons.
244 */
245 #define AIPTEK_JITTER_DELAY_DEFAULT 50
246
247 /* Time to wait (in ms) in-between sending the tablet
248 * a command and beginning the process of reading the return
249 * sequence from the tablet.
250 */
251 #define AIPTEK_PROGRAMMABLE_DELAY_25 25
252 #define AIPTEK_PROGRAMMABLE_DELAY_50 50
253 #define AIPTEK_PROGRAMMABLE_DELAY_100 100
254 #define AIPTEK_PROGRAMMABLE_DELAY_200 200
255 #define AIPTEK_PROGRAMMABLE_DELAY_300 300
256 #define AIPTEK_PROGRAMMABLE_DELAY_400 400
257 #define AIPTEK_PROGRAMMABLE_DELAY_DEFAULT AIPTEK_PROGRAMMABLE_DELAY_400
258
259 /* Mouse button programming
260 */
261 #define AIPTEK_MOUSE_LEFT_BUTTON 0x04
262 #define AIPTEK_MOUSE_RIGHT_BUTTON 0x08
263 #define AIPTEK_MOUSE_MIDDLE_BUTTON 0x10
264
265 /* Stylus button programming
266 */
267 #define AIPTEK_STYLUS_LOWER_BUTTON 0x08
268 #define AIPTEK_STYLUS_UPPER_BUTTON 0x10
269
270 /* Length of incoming packet from the tablet
271 */
272 #define AIPTEK_PACKET_LENGTH 8
273
274 /* We report in EV_MISC both the proximity and
275 * whether the report came from the stylus, tablet mouse
276 * or "unknown" -- Unknown when the tablet is in relative
277 * mode, because we only get report 1's.
278 */
279 #define AIPTEK_REPORT_TOOL_UNKNOWN 0x10
280 #define AIPTEK_REPORT_TOOL_STYLUS 0x20
281 #define AIPTEK_REPORT_TOOL_MOUSE 0x40
282
283 static int programmableDelay = AIPTEK_PROGRAMMABLE_DELAY_DEFAULT;
284 static int jitterDelay = AIPTEK_JITTER_DELAY_DEFAULT;
285
286 struct aiptek_features {
287 int odmCode; /* Tablet manufacturer code */
288 int modelCode; /* Tablet model code (not unique) */
289 int firmwareCode; /* prom/eeprom version */
290 char usbPath[64 + 1]; /* device's physical usb path */
291 };
292
293 struct aiptek_settings {
294 int pointerMode; /* stylus-, mouse-only or either */
295 int coordinateMode; /* absolute/relative coords */
296 int toolMode; /* pen, pencil, brush, etc. tool */
297 int xTilt; /* synthetic xTilt amount */
298 int yTilt; /* synthetic yTilt amount */
299 int wheel; /* synthetic wheel amount */
300 int stylusButtonUpper; /* stylus upper btn delivers... */
301 int stylusButtonLower; /* stylus lower btn delivers... */
302 int mouseButtonLeft; /* mouse left btn delivers... */
303 int mouseButtonMiddle; /* mouse middle btn delivers... */
304 int mouseButtonRight; /* mouse right btn delivers... */
305 int programmableDelay; /* delay for tablet programming */
306 int jitterDelay; /* delay for hand jittering */
307 };
308
309 struct aiptek {
310 struct input_dev *inputdev; /* input device struct */
311 struct usb_device *usbdev; /* usb device struct */
312 struct urb *urb; /* urb for incoming reports */
313 dma_addr_t data_dma; /* our dma stuffage */
314 struct aiptek_features features; /* tablet's array of features */
315 struct aiptek_settings curSetting; /* tablet's current programmable */
316 struct aiptek_settings newSetting; /* ... and new param settings */
317 unsigned int ifnum; /* interface number for IO */
318 int diagnostic; /* tablet diagnostic codes */
319 unsigned long eventCount; /* event count */
320 int inDelay; /* jitter: in jitter delay? */
321 unsigned long endDelay; /* jitter: time when delay ends */
322 int previousJitterable; /* jitterable prev value */
323
324 int lastMacro; /* macro key to reset */
325 int previousToolMode; /* pen, pencil, brush, etc. tool */
326 unsigned char *data; /* incoming packet data */
327 };
328
329 static const int eventTypes[] = {
330 EV_KEY, EV_ABS, EV_REL, EV_MSC,
331 };
332
333 static const int absEvents[] = {
334 ABS_X, ABS_Y, ABS_PRESSURE, ABS_TILT_X, ABS_TILT_Y,
335 ABS_WHEEL, ABS_MISC,
336 };
337
338 static const int relEvents[] = {
339 REL_X, REL_Y, REL_WHEEL,
340 };
341
342 static const int buttonEvents[] = {
343 BTN_LEFT, BTN_RIGHT, BTN_MIDDLE,
344 BTN_TOOL_PEN, BTN_TOOL_RUBBER, BTN_TOOL_PENCIL, BTN_TOOL_AIRBRUSH,
345 BTN_TOOL_BRUSH, BTN_TOOL_MOUSE, BTN_TOOL_LENS, BTN_TOUCH,
346 BTN_STYLUS, BTN_STYLUS2,
347 };
348
349 /*
350 * Permit easy lookup of keyboard events to send, versus
351 * the bitmap which comes from the tablet. This hides the
352 * issue that the F_keys are not sequentially numbered.
353 */
354 static const int macroKeyEvents[] = {
355 KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5,
356 KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11,
357 KEY_F12, KEY_F13, KEY_F14, KEY_F15, KEY_F16, KEY_F17,
358 KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, KEY_F23,
359 KEY_F24, KEY_STOP, KEY_AGAIN, KEY_PROPS, KEY_UNDO,
360 KEY_FRONT, KEY_COPY, KEY_OPEN, KEY_PASTE, 0
361 };
362
363 /***********************************************************************
364 * Map values to strings and back. Every map should have the following
365 * as its last element: { NULL, AIPTEK_INVALID_VALUE }.
366 */
367 #define AIPTEK_INVALID_VALUE -1
368
369 struct aiptek_map {
370 const char *string;
371 int value;
372 };
373
374 static int map_str_to_val(const struct aiptek_map *map, const char *str, size_t count)
375 {
376 const struct aiptek_map *p;
377
378 if (str[count - 1] == '\n')
379 count--;
380
381 for (p = map; p->string; p++)
382 if (!strncmp(str, p->string, count))
383 return p->value;
384
385 return AIPTEK_INVALID_VALUE;
386 }
387
388 static const char *map_val_to_str(const struct aiptek_map *map, int val)
389 {
390 const struct aiptek_map *p;
391
392 for (p = map; p->value != AIPTEK_INVALID_VALUE; p++)
393 if (val == p->value)
394 return p->string;
395
396 return "unknown";
397 }
398
399 /***********************************************************************
400 * aiptek_irq can receive one of six potential reports.
401 * The documentation for each is in the body of the function.
402 *
403 * The tablet reports on several attributes per invocation of
404 * aiptek_irq. Because the Linux Input Event system allows the
405 * transmission of ONE attribute per input_report_xxx() call,
406 * collation has to be done on the other end to reconstitute
407 * a complete tablet report. Further, the number of Input Event reports
408 * submitted varies, depending on what USB report type, and circumstance.
409 * To deal with this, EV_MSC is used to indicate an 'end-of-report'
410 * message. This has been an undocumented convention understood by the kernel
411 * tablet driver and clients such as gpm and XFree86's tablet drivers.
412 *
413 * Of the information received from the tablet, the one piece I
414 * cannot transmit is the proximity bit (without resorting to an EV_MSC
415 * convention above.) I therefore have taken over REL_MISC and ABS_MISC
416 * (for relative and absolute reports, respectively) for communicating
417 * Proximity. Why two events? I thought it interesting to know if the
418 * Proximity event occurred while the tablet was in absolute or relative
419 * mode.
420 * Update: REL_MISC proved not to be such a good idea. With REL_MISC you
421 * get an event transmitted each time. ABS_MISC works better, since it
422 * can be set and re-set. Thus, only using ABS_MISC from now on.
423 *
424 * Other tablets use the notion of a certain minimum stylus pressure
425 * to infer proximity. While that could have been done, that is yet
426 * another 'by convention' behavior, the documentation for which
427 * would be spread between two (or more) pieces of software.
428 *
429 * EV_MSC usage was terminated for this purpose in Linux 2.5.x, and
430 * replaced with the input_sync() method (which emits EV_SYN.)
431 */
432
433 static void aiptek_irq(struct urb *urb)
434 {
435 struct aiptek *aiptek = urb->context;
436 unsigned char *data = aiptek->data;
437 struct input_dev *inputdev = aiptek->inputdev;
438 int jitterable = 0;
439 int retval, macro, x, y, z, left, right, middle, p, dv, tip, bs, pck;
440
441 switch (urb->status) {
442 case 0:
443 /* Success */
444 break;
445
446 case -ECONNRESET:
447 case -ENOENT:
448 case -ESHUTDOWN:
449 /* This urb is terminated, clean up */
450 dbg("%s - urb shutting down with status: %d",
451 __func__, urb->status);
452 return;
453
454 default:
455 dbg("%s - nonzero urb status received: %d",
456 __func__, urb->status);
457 goto exit;
458 }
459
460 /* See if we are in a delay loop -- throw out report if true.
461 */
462 if (aiptek->inDelay == 1 && time_after(aiptek->endDelay, jiffies)) {
463 goto exit;
464 }
465
466 aiptek->inDelay = 0;
467 aiptek->eventCount++;
468
469 /* Report 1 delivers relative coordinates with either a stylus
470 * or the mouse. You do not know, however, which input
471 * tool generated the event.
472 */
473 if (data[0] == 1) {
474 if (aiptek->curSetting.coordinateMode ==
475 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
476 aiptek->diagnostic =
477 AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE;
478 } else {
479 x = (signed char) data[2];
480 y = (signed char) data[3];
481
482 /* jitterable keeps track of whether any button has been pressed.
483 * We're also using it to remap the physical mouse button mask
484 * to pseudo-settings. (We don't specifically care about it's
485 * value after moving/transposing mouse button bitmasks, except
486 * that a non-zero value indicates that one or more
487 * mouse button was pressed.)
488 */
489 jitterable = data[1] & 0x07;
490
491 left = (data[1] & aiptek->curSetting.mouseButtonLeft >> 2) != 0 ? 1 : 0;
492 right = (data[1] & aiptek->curSetting.mouseButtonRight >> 2) != 0 ? 1 : 0;
493 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle >> 2) != 0 ? 1 : 0;
494
495 input_report_key(inputdev, BTN_LEFT, left);
496 input_report_key(inputdev, BTN_MIDDLE, middle);
497 input_report_key(inputdev, BTN_RIGHT, right);
498
499 input_report_abs(inputdev, ABS_MISC,
500 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
501 input_report_rel(inputdev, REL_X, x);
502 input_report_rel(inputdev, REL_Y, y);
503
504 /* Wheel support is in the form of a single-event
505 * firing.
506 */
507 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
508 input_report_rel(inputdev, REL_WHEEL,
509 aiptek->curSetting.wheel);
510 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
511 }
512 if (aiptek->lastMacro != -1) {
513 input_report_key(inputdev,
514 macroKeyEvents[aiptek->lastMacro], 0);
515 aiptek->lastMacro = -1;
516 }
517 input_sync(inputdev);
518 }
519 }
520 /* Report 2 is delivered only by the stylus, and delivers
521 * absolute coordinates.
522 */
523 else if (data[0] == 2) {
524 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
525 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
526 } else if (!AIPTEK_POINTER_ALLOW_STYLUS_MODE
527 (aiptek->curSetting.pointerMode)) {
528 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
529 } else {
530 x = get_unaligned_le16(data + 1);
531 y = get_unaligned_le16(data + 3);
532 z = get_unaligned_le16(data + 6);
533
534 dv = (data[5] & 0x01) != 0 ? 1 : 0;
535 p = (data[5] & 0x02) != 0 ? 1 : 0;
536 tip = (data[5] & 0x04) != 0 ? 1 : 0;
537
538 /* Use jitterable to re-arrange button masks
539 */
540 jitterable = data[5] & 0x18;
541
542 bs = (data[5] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
543 pck = (data[5] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
544
545 /* dv indicates 'data valid' (e.g., the tablet is in sync
546 * and has delivered a "correct" report) We will ignore
547 * all 'bad' reports...
548 */
549 if (dv != 0) {
550 /* If the selected tool changed, reset the old
551 * tool key, and set the new one.
552 */
553 if (aiptek->previousToolMode !=
554 aiptek->curSetting.toolMode) {
555 input_report_key(inputdev,
556 aiptek->previousToolMode, 0);
557 input_report_key(inputdev,
558 aiptek->curSetting.toolMode,
559 1);
560 aiptek->previousToolMode =
561 aiptek->curSetting.toolMode;
562 }
563
564 if (p != 0) {
565 input_report_abs(inputdev, ABS_X, x);
566 input_report_abs(inputdev, ABS_Y, y);
567 input_report_abs(inputdev, ABS_PRESSURE, z);
568
569 input_report_key(inputdev, BTN_TOUCH, tip);
570 input_report_key(inputdev, BTN_STYLUS, bs);
571 input_report_key(inputdev, BTN_STYLUS2, pck);
572
573 if (aiptek->curSetting.xTilt !=
574 AIPTEK_TILT_DISABLE) {
575 input_report_abs(inputdev,
576 ABS_TILT_X,
577 aiptek->curSetting.xTilt);
578 }
579 if (aiptek->curSetting.yTilt != AIPTEK_TILT_DISABLE) {
580 input_report_abs(inputdev,
581 ABS_TILT_Y,
582 aiptek->curSetting.yTilt);
583 }
584
585 /* Wheel support is in the form of a single-event
586 * firing.
587 */
588 if (aiptek->curSetting.wheel !=
589 AIPTEK_WHEEL_DISABLE) {
590 input_report_abs(inputdev,
591 ABS_WHEEL,
592 aiptek->curSetting.wheel);
593 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
594 }
595 }
596 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_STYLUS);
597 if (aiptek->lastMacro != -1) {
598 input_report_key(inputdev,
599 macroKeyEvents[aiptek->lastMacro], 0);
600 aiptek->lastMacro = -1;
601 }
602 input_sync(inputdev);
603 }
604 }
605 }
606 /* Report 3's come from the mouse in absolute mode.
607 */
608 else if (data[0] == 3) {
609 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
610 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
611 } else if (!AIPTEK_POINTER_ALLOW_MOUSE_MODE
612 (aiptek->curSetting.pointerMode)) {
613 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
614 } else {
615 x = get_unaligned_le16(data + 1);
616 y = get_unaligned_le16(data + 3);
617
618 jitterable = data[5] & 0x1c;
619
620 dv = (data[5] & 0x01) != 0 ? 1 : 0;
621 p = (data[5] & 0x02) != 0 ? 1 : 0;
622 left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
623 right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
624 middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
625
626 if (dv != 0) {
627 /* If the selected tool changed, reset the old
628 * tool key, and set the new one.
629 */
630 if (aiptek->previousToolMode !=
631 aiptek->curSetting.toolMode) {
632 input_report_key(inputdev,
633 aiptek->previousToolMode, 0);
634 input_report_key(inputdev,
635 aiptek->curSetting.toolMode,
636 1);
637 aiptek->previousToolMode =
638 aiptek->curSetting.toolMode;
639 }
640
641 if (p != 0) {
642 input_report_abs(inputdev, ABS_X, x);
643 input_report_abs(inputdev, ABS_Y, y);
644
645 input_report_key(inputdev, BTN_LEFT, left);
646 input_report_key(inputdev, BTN_MIDDLE, middle);
647 input_report_key(inputdev, BTN_RIGHT, right);
648
649 /* Wheel support is in the form of a single-event
650 * firing.
651 */
652 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
653 input_report_abs(inputdev,
654 ABS_WHEEL,
655 aiptek->curSetting.wheel);
656 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
657 }
658 }
659 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_MOUSE);
660 if (aiptek->lastMacro != -1) {
661 input_report_key(inputdev,
662 macroKeyEvents[aiptek->lastMacro], 0);
663 aiptek->lastMacro = -1;
664 }
665 input_sync(inputdev);
666 }
667 }
668 }
669 /* Report 4s come from the macro keys when pressed by stylus
670 */
671 else if (data[0] == 4) {
672 jitterable = data[1] & 0x18;
673
674 dv = (data[1] & 0x01) != 0 ? 1 : 0;
675 p = (data[1] & 0x02) != 0 ? 1 : 0;
676 tip = (data[1] & 0x04) != 0 ? 1 : 0;
677 bs = (data[1] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
678 pck = (data[1] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
679
680 macro = dv && p && tip && !(data[3] & 1) ? (data[3] >> 1) : -1;
681 z = get_unaligned_le16(data + 4);
682
683 if (dv) {
684 /* If the selected tool changed, reset the old
685 * tool key, and set the new one.
686 */
687 if (aiptek->previousToolMode !=
688 aiptek->curSetting.toolMode) {
689 input_report_key(inputdev,
690 aiptek->previousToolMode, 0);
691 input_report_key(inputdev,
692 aiptek->curSetting.toolMode,
693 1);
694 aiptek->previousToolMode =
695 aiptek->curSetting.toolMode;
696 }
697 }
698
699 if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) {
700 input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0);
701 aiptek->lastMacro = -1;
702 }
703
704 if (macro != -1 && macro != aiptek->lastMacro) {
705 input_report_key(inputdev, macroKeyEvents[macro], 1);
706 aiptek->lastMacro = macro;
707 }
708 input_report_abs(inputdev, ABS_MISC,
709 p | AIPTEK_REPORT_TOOL_STYLUS);
710 input_sync(inputdev);
711 }
712 /* Report 5s come from the macro keys when pressed by mouse
713 */
714 else if (data[0] == 5) {
715 jitterable = data[1] & 0x1c;
716
717 dv = (data[1] & 0x01) != 0 ? 1 : 0;
718 p = (data[1] & 0x02) != 0 ? 1 : 0;
719 left = (data[1]& aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
720 right = (data[1] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
721 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
722 macro = dv && p && left && !(data[3] & 1) ? (data[3] >> 1) : 0;
723
724 if (dv) {
725 /* If the selected tool changed, reset the old
726 * tool key, and set the new one.
727 */
728 if (aiptek->previousToolMode !=
729 aiptek->curSetting.toolMode) {
730 input_report_key(inputdev,
731 aiptek->previousToolMode, 0);
732 input_report_key(inputdev,
733 aiptek->curSetting.toolMode, 1);
734 aiptek->previousToolMode = aiptek->curSetting.toolMode;
735 }
736 }
737
738 if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) {
739 input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0);
740 aiptek->lastMacro = -1;
741 }
742
743 if (macro != -1 && macro != aiptek->lastMacro) {
744 input_report_key(inputdev, macroKeyEvents[macro], 1);
745 aiptek->lastMacro = macro;
746 }
747
748 input_report_abs(inputdev, ABS_MISC,
749 p | AIPTEK_REPORT_TOOL_MOUSE);
750 input_sync(inputdev);
751 }
752 /* We have no idea which tool can generate a report 6. Theoretically,
753 * neither need to, having been given reports 4 & 5 for such use.
754 * However, report 6 is the 'official-looking' report for macroKeys;
755 * reports 4 & 5 supposively are used to support unnamed, unknown
756 * hat switches (which just so happen to be the macroKeys.)
757 */
758 else if (data[0] == 6) {
759 macro = get_unaligned_le16(data + 1);
760 if (macro > 0) {
761 input_report_key(inputdev, macroKeyEvents[macro - 1],
762 0);
763 }
764 if (macro < 25) {
765 input_report_key(inputdev, macroKeyEvents[macro + 1],
766 0);
767 }
768
769 /* If the selected tool changed, reset the old
770 tool key, and set the new one.
771 */
772 if (aiptek->previousToolMode !=
773 aiptek->curSetting.toolMode) {
774 input_report_key(inputdev,
775 aiptek->previousToolMode, 0);
776 input_report_key(inputdev,
777 aiptek->curSetting.toolMode,
778 1);
779 aiptek->previousToolMode =
780 aiptek->curSetting.toolMode;
781 }
782
783 input_report_key(inputdev, macroKeyEvents[macro], 1);
784 input_report_abs(inputdev, ABS_MISC,
785 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
786 input_sync(inputdev);
787 } else {
788 dbg("Unknown report %d", data[0]);
789 }
790
791 /* Jitter may occur when the user presses a button on the stlyus
792 * or the mouse. What we do to prevent that is wait 'x' milliseconds
793 * following a 'jitterable' event, which should give the hand some time
794 * stabilize itself.
795 *
796 * We just introduced aiptek->previousJitterable to carry forth the
797 * notion that jitter occurs when the button state changes from on to off:
798 * a person drawing, holding a button down is not subject to jittering.
799 * With that in mind, changing from upper button depressed to lower button
800 * WILL transition through a jitter delay.
801 */
802
803 if (aiptek->previousJitterable != jitterable &&
804 aiptek->curSetting.jitterDelay != 0 && aiptek->inDelay != 1) {
805 aiptek->endDelay = jiffies +
806 ((aiptek->curSetting.jitterDelay * HZ) / 1000);
807 aiptek->inDelay = 1;
808 }
809 aiptek->previousJitterable = jitterable;
810
811 exit:
812 retval = usb_submit_urb(urb, GFP_ATOMIC);
813 if (retval != 0) {
814 err("%s - usb_submit_urb failed with result %d",
815 __func__, retval);
816 }
817 }
818
819 /***********************************************************************
820 * These are the USB id's known so far. We do not identify them to
821 * specific Aiptek model numbers, because there has been overlaps,
822 * use, and reuse of id's in existing models. Certain models have
823 * been known to use more than one ID, indicative perhaps of
824 * manufacturing revisions. In any event, we consider these
825 * IDs to not be model-specific nor unique.
826 */
827 static const struct usb_device_id aiptek_ids[] = {
828 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x01)},
829 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x10)},
830 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20)},
831 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x21)},
832 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x22)},
833 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x23)},
834 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x24)},
835 {USB_DEVICE(USB_VENDOR_ID_KYE, 0x5003)},
836 {}
837 };
838
839 MODULE_DEVICE_TABLE(usb, aiptek_ids);
840
841 /***********************************************************************
842 * Open an instance of the tablet driver.
843 */
844 static int aiptek_open(struct input_dev *inputdev)
845 {
846 struct aiptek *aiptek = input_get_drvdata(inputdev);
847
848 aiptek->urb->dev = aiptek->usbdev;
849 if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0)
850 return -EIO;
851
852 return 0;
853 }
854
855 /***********************************************************************
856 * Close an instance of the tablet driver.
857 */
858 static void aiptek_close(struct input_dev *inputdev)
859 {
860 struct aiptek *aiptek = input_get_drvdata(inputdev);
861
862 usb_kill_urb(aiptek->urb);
863 }
864
865 /***********************************************************************
866 * aiptek_set_report and aiptek_get_report() are borrowed from Linux 2.4.x,
867 * where they were known as usb_set_report and usb_get_report.
868 */
869 static int
870 aiptek_set_report(struct aiptek *aiptek,
871 unsigned char report_type,
872 unsigned char report_id, void *buffer, int size)
873 {
874 return usb_control_msg(aiptek->usbdev,
875 usb_sndctrlpipe(aiptek->usbdev, 0),
876 USB_REQ_SET_REPORT,
877 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
878 USB_DIR_OUT, (report_type << 8) + report_id,
879 aiptek->ifnum, buffer, size, 5000);
880 }
881
882 static int
883 aiptek_get_report(struct aiptek *aiptek,
884 unsigned char report_type,
885 unsigned char report_id, void *buffer, int size)
886 {
887 return usb_control_msg(aiptek->usbdev,
888 usb_rcvctrlpipe(aiptek->usbdev, 0),
889 USB_REQ_GET_REPORT,
890 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
891 USB_DIR_IN, (report_type << 8) + report_id,
892 aiptek->ifnum, buffer, size, 5000);
893 }
894
895 /***********************************************************************
896 * Send a command to the tablet.
897 */
898 static int
899 aiptek_command(struct aiptek *aiptek, unsigned char command, unsigned char data)
900 {
901 const int sizeof_buf = 3 * sizeof(u8);
902 int ret;
903 u8 *buf;
904
905 buf = kmalloc(sizeof_buf, GFP_KERNEL);
906 if (!buf)
907 return -ENOMEM;
908
909 buf[0] = 2;
910 buf[1] = command;
911 buf[2] = data;
912
913 if ((ret =
914 aiptek_set_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
915 dbg("aiptek_program: failed, tried to send: 0x%02x 0x%02x",
916 command, data);
917 }
918 kfree(buf);
919 return ret < 0 ? ret : 0;
920 }
921
922 /***********************************************************************
923 * Retrieve information from the tablet. Querying info is defined as first
924 * sending the {command,data} sequence as a command, followed by a wait
925 * (aka, "programmaticDelay") and then a "read" request.
926 */
927 static int
928 aiptek_query(struct aiptek *aiptek, unsigned char command, unsigned char data)
929 {
930 const int sizeof_buf = 3 * sizeof(u8);
931 int ret;
932 u8 *buf;
933
934 buf = kmalloc(sizeof_buf, GFP_KERNEL);
935 if (!buf)
936 return -ENOMEM;
937
938 buf[0] = 2;
939 buf[1] = command;
940 buf[2] = data;
941
942 if (aiptek_command(aiptek, command, data) != 0) {
943 kfree(buf);
944 return -EIO;
945 }
946 msleep(aiptek->curSetting.programmableDelay);
947
948 if ((ret =
949 aiptek_get_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
950 dbg("aiptek_query failed: returned 0x%02x 0x%02x 0x%02x",
951 buf[0], buf[1], buf[2]);
952 ret = -EIO;
953 } else {
954 ret = get_unaligned_le16(buf + 1);
955 }
956 kfree(buf);
957 return ret;
958 }
959
960 /***********************************************************************
961 * Program the tablet into either absolute or relative mode.
962 * We also get information about the tablet's size.
963 */
964 static int aiptek_program_tablet(struct aiptek *aiptek)
965 {
966 int ret;
967 /* Execute Resolution500LPI */
968 if ((ret = aiptek_command(aiptek, 0x18, 0x04)) < 0)
969 return ret;
970
971 /* Query getModelCode */
972 if ((ret = aiptek_query(aiptek, 0x02, 0x00)) < 0)
973 return ret;
974 aiptek->features.modelCode = ret & 0xff;
975
976 /* Query getODMCode */
977 if ((ret = aiptek_query(aiptek, 0x03, 0x00)) < 0)
978 return ret;
979 aiptek->features.odmCode = ret;
980
981 /* Query getFirmwareCode */
982 if ((ret = aiptek_query(aiptek, 0x04, 0x00)) < 0)
983 return ret;
984 aiptek->features.firmwareCode = ret;
985
986 /* Query getXextension */
987 if ((ret = aiptek_query(aiptek, 0x01, 0x00)) < 0)
988 return ret;
989 input_set_abs_params(aiptek->inputdev, ABS_X, 0, ret - 1, 0, 0);
990
991 /* Query getYextension */
992 if ((ret = aiptek_query(aiptek, 0x01, 0x01)) < 0)
993 return ret;
994 input_set_abs_params(aiptek->inputdev, ABS_Y, 0, ret - 1, 0, 0);
995
996 /* Query getPressureLevels */
997 if ((ret = aiptek_query(aiptek, 0x08, 0x00)) < 0)
998 return ret;
999 input_set_abs_params(aiptek->inputdev, ABS_PRESSURE, 0, ret - 1, 0, 0);
1000
1001 /* Depending on whether we are in absolute or relative mode, we will
1002 * do a switchToTablet(absolute) or switchToMouse(relative) command.
1003 */
1004 if (aiptek->curSetting.coordinateMode ==
1005 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
1006 /* Execute switchToTablet */
1007 if ((ret = aiptek_command(aiptek, 0x10, 0x01)) < 0) {
1008 return ret;
1009 }
1010 } else {
1011 /* Execute switchToMouse */
1012 if ((ret = aiptek_command(aiptek, 0x10, 0x00)) < 0) {
1013 return ret;
1014 }
1015 }
1016
1017 /* Enable the macro keys */
1018 if ((ret = aiptek_command(aiptek, 0x11, 0x02)) < 0)
1019 return ret;
1020 #if 0
1021 /* Execute FilterOn */
1022 if ((ret = aiptek_command(aiptek, 0x17, 0x00)) < 0)
1023 return ret;
1024 #endif
1025
1026 /* Execute AutoGainOn */
1027 if ((ret = aiptek_command(aiptek, 0x12, 0xff)) < 0)
1028 return ret;
1029
1030 /* Reset the eventCount, so we track events from last (re)programming
1031 */
1032 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_NA;
1033 aiptek->eventCount = 0;
1034
1035 return 0;
1036 }
1037
1038 /***********************************************************************
1039 * Sysfs functions. Sysfs prefers that individually-tunable parameters
1040 * exist in their separate pseudo-files. Summary data that is immutable
1041 * may exist in a singular file so long as you don't define a writeable
1042 * interface.
1043 */
1044
1045 /***********************************************************************
1046 * support the 'size' file -- display support
1047 */
1048 static ssize_t show_tabletSize(struct device *dev, struct device_attribute *attr, char *buf)
1049 {
1050 struct aiptek *aiptek = dev_get_drvdata(dev);
1051
1052 return snprintf(buf, PAGE_SIZE, "%dx%d\n",
1053 input_abs_get_max(aiptek->inputdev, ABS_X) + 1,
1054 input_abs_get_max(aiptek->inputdev, ABS_Y) + 1);
1055 }
1056
1057 /* These structs define the sysfs files, param #1 is the name of the
1058 * file, param 2 is the file permissions, param 3 & 4 are to the
1059 * output generator and input parser routines. Absence of a routine is
1060 * permitted -- it only means can't either 'cat' the file, or send data
1061 * to it.
1062 */
1063 static DEVICE_ATTR(size, S_IRUGO, show_tabletSize, NULL);
1064
1065 /***********************************************************************
1066 * support routines for the 'pointer_mode' file. Note that this file
1067 * both displays current setting and allows reprogramming.
1068 */
1069 static struct aiptek_map pointer_mode_map[] = {
1070 { "stylus", AIPTEK_POINTER_ONLY_STYLUS_MODE },
1071 { "mouse", AIPTEK_POINTER_ONLY_MOUSE_MODE },
1072 { "either", AIPTEK_POINTER_EITHER_MODE },
1073 { NULL, AIPTEK_INVALID_VALUE }
1074 };
1075
1076 static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribute *attr, char *buf)
1077 {
1078 struct aiptek *aiptek = dev_get_drvdata(dev);
1079
1080 return snprintf(buf, PAGE_SIZE, "%s\n",
1081 map_val_to_str(pointer_mode_map,
1082 aiptek->curSetting.pointerMode));
1083 }
1084
1085 static ssize_t
1086 store_tabletPointerMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1087 {
1088 struct aiptek *aiptek = dev_get_drvdata(dev);
1089 int new_mode = map_str_to_val(pointer_mode_map, buf, count);
1090
1091 if (new_mode == AIPTEK_INVALID_VALUE)
1092 return -EINVAL;
1093
1094 aiptek->newSetting.pointerMode = new_mode;
1095 return count;
1096 }
1097
1098 static DEVICE_ATTR(pointer_mode,
1099 S_IRUGO | S_IWUSR,
1100 show_tabletPointerMode, store_tabletPointerMode);
1101
1102 /***********************************************************************
1103 * support routines for the 'coordinate_mode' file. Note that this file
1104 * both displays current setting and allows reprogramming.
1105 */
1106
1107 static struct aiptek_map coordinate_mode_map[] = {
1108 { "absolute", AIPTEK_COORDINATE_ABSOLUTE_MODE },
1109 { "relative", AIPTEK_COORDINATE_RELATIVE_MODE },
1110 { NULL, AIPTEK_INVALID_VALUE }
1111 };
1112
1113 static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, char *buf)
1114 {
1115 struct aiptek *aiptek = dev_get_drvdata(dev);
1116
1117 return snprintf(buf, PAGE_SIZE, "%s\n",
1118 map_val_to_str(coordinate_mode_map,
1119 aiptek->curSetting.coordinateMode));
1120 }
1121
1122 static ssize_t
1123 store_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1124 {
1125 struct aiptek *aiptek = dev_get_drvdata(dev);
1126 int new_mode = map_str_to_val(coordinate_mode_map, buf, count);
1127
1128 if (new_mode == AIPTEK_INVALID_VALUE)
1129 return -EINVAL;
1130
1131 aiptek->newSetting.coordinateMode = new_mode;
1132 return count;
1133 }
1134
1135 static DEVICE_ATTR(coordinate_mode,
1136 S_IRUGO | S_IWUSR,
1137 show_tabletCoordinateMode, store_tabletCoordinateMode);
1138
1139 /***********************************************************************
1140 * support routines for the 'tool_mode' file. Note that this file
1141 * both displays current setting and allows reprogramming.
1142 */
1143
1144 static struct aiptek_map tool_mode_map[] = {
1145 { "mouse", AIPTEK_TOOL_BUTTON_MOUSE_MODE },
1146 { "eraser", AIPTEK_TOOL_BUTTON_ERASER_MODE },
1147 { "pencil", AIPTEK_TOOL_BUTTON_PENCIL_MODE },
1148 { "pen", AIPTEK_TOOL_BUTTON_PEN_MODE },
1149 { "brush", AIPTEK_TOOL_BUTTON_BRUSH_MODE },
1150 { "airbrush", AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE },
1151 { "lens", AIPTEK_TOOL_BUTTON_LENS_MODE },
1152 { NULL, AIPTEK_INVALID_VALUE }
1153 };
1154
1155 static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *attr, char *buf)
1156 {
1157 struct aiptek *aiptek = dev_get_drvdata(dev);
1158
1159 return snprintf(buf, PAGE_SIZE, "%s\n",
1160 map_val_to_str(tool_mode_map,
1161 aiptek->curSetting.toolMode));
1162 }
1163
1164 static ssize_t
1165 store_tabletToolMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1166 {
1167 struct aiptek *aiptek = dev_get_drvdata(dev);
1168 int new_mode = map_str_to_val(tool_mode_map, buf, count);
1169
1170 if (new_mode == AIPTEK_INVALID_VALUE)
1171 return -EINVAL;
1172
1173 aiptek->newSetting.toolMode = new_mode;
1174 return count;
1175 }
1176
1177 static DEVICE_ATTR(tool_mode,
1178 S_IRUGO | S_IWUSR,
1179 show_tabletToolMode, store_tabletToolMode);
1180
1181 /***********************************************************************
1182 * support routines for the 'xtilt' file. Note that this file
1183 * both displays current setting and allows reprogramming.
1184 */
1185 static ssize_t show_tabletXtilt(struct device *dev, struct device_attribute *attr, char *buf)
1186 {
1187 struct aiptek *aiptek = dev_get_drvdata(dev);
1188
1189 if (aiptek->curSetting.xTilt == AIPTEK_TILT_DISABLE) {
1190 return snprintf(buf, PAGE_SIZE, "disable\n");
1191 } else {
1192 return snprintf(buf, PAGE_SIZE, "%d\n",
1193 aiptek->curSetting.xTilt);
1194 }
1195 }
1196
1197 static ssize_t
1198 store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1199 {
1200 struct aiptek *aiptek = dev_get_drvdata(dev);
1201 int x;
1202
1203 if (kstrtoint(buf, 10, &x)) {
1204 size_t len = buf[count - 1] == '\n' ? count - 1 : count;
1205
1206 if (strncmp(buf, "disable", len))
1207 return -EINVAL;
1208
1209 aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE;
1210 } else {
1211 if (x < AIPTEK_TILT_MIN || x > AIPTEK_TILT_MAX)
1212 return -EINVAL;
1213
1214 aiptek->newSetting.xTilt = x;
1215 }
1216
1217 return count;
1218 }
1219
1220 static DEVICE_ATTR(xtilt,
1221 S_IRUGO | S_IWUSR, show_tabletXtilt, store_tabletXtilt);
1222
1223 /***********************************************************************
1224 * support routines for the 'ytilt' file. Note that this file
1225 * both displays current setting and allows reprogramming.
1226 */
1227 static ssize_t show_tabletYtilt(struct device *dev, struct device_attribute *attr, char *buf)
1228 {
1229 struct aiptek *aiptek = dev_get_drvdata(dev);
1230
1231 if (aiptek->curSetting.yTilt == AIPTEK_TILT_DISABLE) {
1232 return snprintf(buf, PAGE_SIZE, "disable\n");
1233 } else {
1234 return snprintf(buf, PAGE_SIZE, "%d\n",
1235 aiptek->curSetting.yTilt);
1236 }
1237 }
1238
1239 static ssize_t
1240 store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1241 {
1242 struct aiptek *aiptek = dev_get_drvdata(dev);
1243 int y;
1244
1245 if (kstrtoint(buf, 10, &y)) {
1246 size_t len = buf[count - 1] == '\n' ? count - 1 : count;
1247
1248 if (strncmp(buf, "disable", len))
1249 return -EINVAL;
1250
1251 aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE;
1252 } else {
1253 if (y < AIPTEK_TILT_MIN || y > AIPTEK_TILT_MAX)
1254 return -EINVAL;
1255
1256 aiptek->newSetting.yTilt = y;
1257 }
1258
1259 return count;
1260 }
1261
1262 static DEVICE_ATTR(ytilt,
1263 S_IRUGO | S_IWUSR, show_tabletYtilt, store_tabletYtilt);
1264
1265 /***********************************************************************
1266 * support routines for the 'jitter' file. Note that this file
1267 * both displays current setting and allows reprogramming.
1268 */
1269 static ssize_t show_tabletJitterDelay(struct device *dev, struct device_attribute *attr, char *buf)
1270 {
1271 struct aiptek *aiptek = dev_get_drvdata(dev);
1272
1273 return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.jitterDelay);
1274 }
1275
1276 static ssize_t
1277 store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1278 {
1279 struct aiptek *aiptek = dev_get_drvdata(dev);
1280 int err, j;
1281
1282 err = kstrtoint(buf, 10, &j);
1283 if (err)
1284 return err;
1285
1286 aiptek->newSetting.jitterDelay = j;
1287 return count;
1288 }
1289
1290 static DEVICE_ATTR(jitter,
1291 S_IRUGO | S_IWUSR,
1292 show_tabletJitterDelay, store_tabletJitterDelay);
1293
1294 /***********************************************************************
1295 * support routines for the 'delay' file. Note that this file
1296 * both displays current setting and allows reprogramming.
1297 */
1298 static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, char *buf)
1299 {
1300 struct aiptek *aiptek = dev_get_drvdata(dev);
1301
1302 return snprintf(buf, PAGE_SIZE, "%d\n",
1303 aiptek->curSetting.programmableDelay);
1304 }
1305
1306 static ssize_t
1307 store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1308 {
1309 struct aiptek *aiptek = dev_get_drvdata(dev);
1310 int err, d;
1311
1312 err = kstrtoint(buf, 10, &d);
1313 if (err)
1314 return err;
1315
1316 aiptek->newSetting.programmableDelay = d;
1317 return count;
1318 }
1319
1320 static DEVICE_ATTR(delay,
1321 S_IRUGO | S_IWUSR,
1322 show_tabletProgrammableDelay, store_tabletProgrammableDelay);
1323
1324 /***********************************************************************
1325 * support routines for the 'event_count' file. Note that this file
1326 * only displays current setting.
1327 */
1328 static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attribute *attr, char *buf)
1329 {
1330 struct aiptek *aiptek = dev_get_drvdata(dev);
1331
1332 return snprintf(buf, PAGE_SIZE, "%ld\n", aiptek->eventCount);
1333 }
1334
1335 static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL);
1336
1337 /***********************************************************************
1338 * support routines for the 'diagnostic' file. Note that this file
1339 * only displays current setting.
1340 */
1341 static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_attribute *attr, char *buf)
1342 {
1343 struct aiptek *aiptek = dev_get_drvdata(dev);
1344 char *retMsg;
1345
1346 switch (aiptek->diagnostic) {
1347 case AIPTEK_DIAGNOSTIC_NA:
1348 retMsg = "no errors\n";
1349 break;
1350
1351 case AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE:
1352 retMsg = "Error: receiving relative reports\n";
1353 break;
1354
1355 case AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE:
1356 retMsg = "Error: receiving absolute reports\n";
1357 break;
1358
1359 case AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED:
1360 if (aiptek->curSetting.pointerMode ==
1361 AIPTEK_POINTER_ONLY_MOUSE_MODE) {
1362 retMsg = "Error: receiving stylus reports\n";
1363 } else {
1364 retMsg = "Error: receiving mouse reports\n";
1365 }
1366 break;
1367
1368 default:
1369 return 0;
1370 }
1371 return snprintf(buf, PAGE_SIZE, retMsg);
1372 }
1373
1374 static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL);
1375
1376 /***********************************************************************
1377 * support routines for the 'stylus_upper' file. Note that this file
1378 * both displays current setting and allows for setting changing.
1379 */
1380
1381 static struct aiptek_map stylus_button_map[] = {
1382 { "upper", AIPTEK_STYLUS_UPPER_BUTTON },
1383 { "lower", AIPTEK_STYLUS_LOWER_BUTTON },
1384 { NULL, AIPTEK_INVALID_VALUE }
1385 };
1386
1387 static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf)
1388 {
1389 struct aiptek *aiptek = dev_get_drvdata(dev);
1390
1391 return snprintf(buf, PAGE_SIZE, "%s\n",
1392 map_val_to_str(stylus_button_map,
1393 aiptek->curSetting.stylusButtonUpper));
1394 }
1395
1396 static ssize_t
1397 store_tabletStylusUpper(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1398 {
1399 struct aiptek *aiptek = dev_get_drvdata(dev);
1400 int new_button = map_str_to_val(stylus_button_map, buf, count);
1401
1402 if (new_button == AIPTEK_INVALID_VALUE)
1403 return -EINVAL;
1404
1405 aiptek->newSetting.stylusButtonUpper = new_button;
1406 return count;
1407 }
1408
1409 static DEVICE_ATTR(stylus_upper,
1410 S_IRUGO | S_IWUSR,
1411 show_tabletStylusUpper, store_tabletStylusUpper);
1412
1413 /***********************************************************************
1414 * support routines for the 'stylus_lower' file. Note that this file
1415 * both displays current setting and allows for setting changing.
1416 */
1417
1418 static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribute *attr, char *buf)
1419 {
1420 struct aiptek *aiptek = dev_get_drvdata(dev);
1421
1422 return snprintf(buf, PAGE_SIZE, "%s\n",
1423 map_val_to_str(stylus_button_map,
1424 aiptek->curSetting.stylusButtonLower));
1425 }
1426
1427 static ssize_t
1428 store_tabletStylusLower(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1429 {
1430 struct aiptek *aiptek = dev_get_drvdata(dev);
1431 int new_button = map_str_to_val(stylus_button_map, buf, count);
1432
1433 if (new_button == AIPTEK_INVALID_VALUE)
1434 return -EINVAL;
1435
1436 aiptek->newSetting.stylusButtonLower = new_button;
1437 return count;
1438 }
1439
1440 static DEVICE_ATTR(stylus_lower,
1441 S_IRUGO | S_IWUSR,
1442 show_tabletStylusLower, store_tabletStylusLower);
1443
1444 /***********************************************************************
1445 * support routines for the 'mouse_left' file. Note that this file
1446 * both displays current setting and allows for setting changing.
1447 */
1448
1449 static struct aiptek_map mouse_button_map[] = {
1450 { "left", AIPTEK_MOUSE_LEFT_BUTTON },
1451 { "middle", AIPTEK_MOUSE_MIDDLE_BUTTON },
1452 { "right", AIPTEK_MOUSE_RIGHT_BUTTON },
1453 { NULL, AIPTEK_INVALID_VALUE }
1454 };
1455
1456 static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf)
1457 {
1458 struct aiptek *aiptek = dev_get_drvdata(dev);
1459
1460 return snprintf(buf, PAGE_SIZE, "%s\n",
1461 map_val_to_str(mouse_button_map,
1462 aiptek->curSetting.mouseButtonLeft));
1463 }
1464
1465 static ssize_t
1466 store_tabletMouseLeft(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1467 {
1468 struct aiptek *aiptek = dev_get_drvdata(dev);
1469 int new_button = map_str_to_val(mouse_button_map, buf, count);
1470
1471 if (new_button == AIPTEK_INVALID_VALUE)
1472 return -EINVAL;
1473
1474 aiptek->newSetting.mouseButtonLeft = new_button;
1475 return count;
1476 }
1477
1478 static DEVICE_ATTR(mouse_left,
1479 S_IRUGO | S_IWUSR,
1480 show_tabletMouseLeft, store_tabletMouseLeft);
1481
1482 /***********************************************************************
1483 * support routines for the 'mouse_middle' file. Note that this file
1484 * both displays current setting and allows for setting changing.
1485 */
1486 static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, char *buf)
1487 {
1488 struct aiptek *aiptek = dev_get_drvdata(dev);
1489
1490 return snprintf(buf, PAGE_SIZE, "%s\n",
1491 map_val_to_str(mouse_button_map,
1492 aiptek->curSetting.mouseButtonMiddle));
1493 }
1494
1495 static ssize_t
1496 store_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1497 {
1498 struct aiptek *aiptek = dev_get_drvdata(dev);
1499 int new_button = map_str_to_val(mouse_button_map, buf, count);
1500
1501 if (new_button == AIPTEK_INVALID_VALUE)
1502 return -EINVAL;
1503
1504 aiptek->newSetting.mouseButtonMiddle = new_button;
1505 return count;
1506 }
1507
1508 static DEVICE_ATTR(mouse_middle,
1509 S_IRUGO | S_IWUSR,
1510 show_tabletMouseMiddle, store_tabletMouseMiddle);
1511
1512 /***********************************************************************
1513 * support routines for the 'mouse_right' file. Note that this file
1514 * both displays current setting and allows for setting changing.
1515 */
1516 static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute *attr, char *buf)
1517 {
1518 struct aiptek *aiptek = dev_get_drvdata(dev);
1519
1520 return snprintf(buf, PAGE_SIZE, "%s\n",
1521 map_val_to_str(mouse_button_map,
1522 aiptek->curSetting.mouseButtonRight));
1523 }
1524
1525 static ssize_t
1526 store_tabletMouseRight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1527 {
1528 struct aiptek *aiptek = dev_get_drvdata(dev);
1529 int new_button = map_str_to_val(mouse_button_map, buf, count);
1530
1531 if (new_button == AIPTEK_INVALID_VALUE)
1532 return -EINVAL;
1533
1534 aiptek->newSetting.mouseButtonRight = new_button;
1535 return count;
1536 }
1537
1538 static DEVICE_ATTR(mouse_right,
1539 S_IRUGO | S_IWUSR,
1540 show_tabletMouseRight, store_tabletMouseRight);
1541
1542 /***********************************************************************
1543 * support routines for the 'wheel' file. Note that this file
1544 * both displays current setting and allows for setting changing.
1545 */
1546 static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *attr, char *buf)
1547 {
1548 struct aiptek *aiptek = dev_get_drvdata(dev);
1549
1550 if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) {
1551 return snprintf(buf, PAGE_SIZE, "disable\n");
1552 } else {
1553 return snprintf(buf, PAGE_SIZE, "%d\n",
1554 aiptek->curSetting.wheel);
1555 }
1556 }
1557
1558 static ssize_t
1559 store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1560 {
1561 struct aiptek *aiptek = dev_get_drvdata(dev);
1562 int err, w;
1563
1564 err = kstrtoint(buf, 10, &w);
1565 if (err)
1566 return err;
1567
1568 aiptek->newSetting.wheel = w;
1569 return count;
1570 }
1571
1572 static DEVICE_ATTR(wheel,
1573 S_IRUGO | S_IWUSR, show_tabletWheel, store_tabletWheel);
1574
1575 /***********************************************************************
1576 * support routines for the 'execute' file. Note that this file
1577 * both displays current setting and allows for setting changing.
1578 */
1579 static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *attr, char *buf)
1580 {
1581 /* There is nothing useful to display, so a one-line manual
1582 * is in order...
1583 */
1584 return snprintf(buf, PAGE_SIZE,
1585 "Write anything to this file to program your tablet.\n");
1586 }
1587
1588 static ssize_t
1589 store_tabletExecute(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1590 {
1591 struct aiptek *aiptek = dev_get_drvdata(dev);
1592
1593 /* We do not care what you write to this file. Merely the action
1594 * of writing to this file triggers a tablet reprogramming.
1595 */
1596 memcpy(&aiptek->curSetting, &aiptek->newSetting,
1597 sizeof(struct aiptek_settings));
1598
1599 if (aiptek_program_tablet(aiptek) < 0)
1600 return -EIO;
1601
1602 return count;
1603 }
1604
1605 static DEVICE_ATTR(execute,
1606 S_IRUGO | S_IWUSR, show_tabletExecute, store_tabletExecute);
1607
1608 /***********************************************************************
1609 * support routines for the 'odm_code' file. Note that this file
1610 * only displays current setting.
1611 */
1612 static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *attr, char *buf)
1613 {
1614 struct aiptek *aiptek = dev_get_drvdata(dev);
1615
1616 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.odmCode);
1617 }
1618
1619 static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL);
1620
1621 /***********************************************************************
1622 * support routines for the 'model_code' file. Note that this file
1623 * only displays current setting.
1624 */
1625 static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute *attr, char *buf)
1626 {
1627 struct aiptek *aiptek = dev_get_drvdata(dev);
1628
1629 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.modelCode);
1630 }
1631
1632 static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL);
1633
1634 /***********************************************************************
1635 * support routines for the 'firmware_code' file. Note that this file
1636 * only displays current setting.
1637 */
1638 static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *attr, char *buf)
1639 {
1640 struct aiptek *aiptek = dev_get_drvdata(dev);
1641
1642 return snprintf(buf, PAGE_SIZE, "%04x\n",
1643 aiptek->features.firmwareCode);
1644 }
1645
1646 static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL);
1647
1648 static struct attribute *aiptek_attributes[] = {
1649 &dev_attr_size.attr,
1650 &dev_attr_pointer_mode.attr,
1651 &dev_attr_coordinate_mode.attr,
1652 &dev_attr_tool_mode.attr,
1653 &dev_attr_xtilt.attr,
1654 &dev_attr_ytilt.attr,
1655 &dev_attr_jitter.attr,
1656 &dev_attr_delay.attr,
1657 &dev_attr_event_count.attr,
1658 &dev_attr_diagnostic.attr,
1659 &dev_attr_odm_code.attr,
1660 &dev_attr_model_code.attr,
1661 &dev_attr_firmware_code.attr,
1662 &dev_attr_stylus_lower.attr,
1663 &dev_attr_stylus_upper.attr,
1664 &dev_attr_mouse_left.attr,
1665 &dev_attr_mouse_middle.attr,
1666 &dev_attr_mouse_right.attr,
1667 &dev_attr_wheel.attr,
1668 &dev_attr_execute.attr,
1669 NULL
1670 };
1671
1672 static struct attribute_group aiptek_attribute_group = {
1673 .attrs = aiptek_attributes,
1674 };
1675
1676 /***********************************************************************
1677 * This routine is called when a tablet has been identified. It basically
1678 * sets up the tablet and the driver's internal structures.
1679 */
1680 static int
1681 aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
1682 {
1683 struct usb_device *usbdev = interface_to_usbdev(intf);
1684 struct usb_endpoint_descriptor *endpoint;
1685 struct aiptek *aiptek;
1686 struct input_dev *inputdev;
1687 int i;
1688 int speeds[] = { 0,
1689 AIPTEK_PROGRAMMABLE_DELAY_50,
1690 AIPTEK_PROGRAMMABLE_DELAY_400,
1691 AIPTEK_PROGRAMMABLE_DELAY_25,
1692 AIPTEK_PROGRAMMABLE_DELAY_100,
1693 AIPTEK_PROGRAMMABLE_DELAY_200,
1694 AIPTEK_PROGRAMMABLE_DELAY_300
1695 };
1696 int err = -ENOMEM;
1697
1698 /* programmableDelay is where the command-line specified
1699 * delay is kept. We make it the first element of speeds[],
1700 * so therefore, your override speed is tried first, then the
1701 * remainder. Note that the default value of 400ms will be tried
1702 * if you do not specify any command line parameter.
1703 */
1704 speeds[0] = programmableDelay;
1705
1706 aiptek = kzalloc(sizeof(struct aiptek), GFP_KERNEL);
1707 inputdev = input_allocate_device();
1708 if (!aiptek || !inputdev) {
1709 dev_warn(&intf->dev,
1710 "cannot allocate memory or input device\n");
1711 goto fail1;
1712 }
1713
1714 aiptek->data = usb_alloc_coherent(usbdev, AIPTEK_PACKET_LENGTH,
1715 GFP_ATOMIC, &aiptek->data_dma);
1716 if (!aiptek->data) {
1717 dev_warn(&intf->dev, "cannot allocate usb buffer\n");
1718 goto fail1;
1719 }
1720
1721 aiptek->urb = usb_alloc_urb(0, GFP_KERNEL);
1722 if (!aiptek->urb) {
1723 dev_warn(&intf->dev, "cannot allocate urb\n");
1724 goto fail2;
1725 }
1726
1727 aiptek->inputdev = inputdev;
1728 aiptek->usbdev = usbdev;
1729 aiptek->ifnum = intf->altsetting[0].desc.bInterfaceNumber;
1730 aiptek->inDelay = 0;
1731 aiptek->endDelay = 0;
1732 aiptek->previousJitterable = 0;
1733 aiptek->lastMacro = -1;
1734
1735 /* Set up the curSettings struct. Said struct contains the current
1736 * programmable parameters. The newSetting struct contains changes
1737 * the user makes to the settings via the sysfs interface. Those
1738 * changes are not "committed" to curSettings until the user
1739 * writes to the sysfs/.../execute file.
1740 */
1741 aiptek->curSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE;
1742 aiptek->curSetting.coordinateMode = AIPTEK_COORDINATE_ABSOLUTE_MODE;
1743 aiptek->curSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE;
1744 aiptek->curSetting.xTilt = AIPTEK_TILT_DISABLE;
1745 aiptek->curSetting.yTilt = AIPTEK_TILT_DISABLE;
1746 aiptek->curSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON;
1747 aiptek->curSetting.mouseButtonMiddle = AIPTEK_MOUSE_MIDDLE_BUTTON;
1748 aiptek->curSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON;
1749 aiptek->curSetting.stylusButtonUpper = AIPTEK_STYLUS_UPPER_BUTTON;
1750 aiptek->curSetting.stylusButtonLower = AIPTEK_STYLUS_LOWER_BUTTON;
1751 aiptek->curSetting.jitterDelay = jitterDelay;
1752 aiptek->curSetting.programmableDelay = programmableDelay;
1753
1754 /* Both structs should have equivalent settings
1755 */
1756 aiptek->newSetting = aiptek->curSetting;
1757
1758 /* Determine the usb devices' physical path.
1759 * Asketh not why we always pretend we're using "../input0",
1760 * but I suspect this will have to be refactored one
1761 * day if a single USB device can be a keyboard & a mouse
1762 * & a tablet, and the inputX number actually will tell
1763 * us something...
1764 */
1765 usb_make_path(usbdev, aiptek->features.usbPath,
1766 sizeof(aiptek->features.usbPath));
1767 strlcat(aiptek->features.usbPath, "/input0",
1768 sizeof(aiptek->features.usbPath));
1769
1770 /* Set up client data, pointers to open and close routines
1771 * for the input device.
1772 */
1773 inputdev->name = "Aiptek";
1774 inputdev->phys = aiptek->features.usbPath;
1775 usb_to_input_id(usbdev, &inputdev->id);
1776 inputdev->dev.parent = &intf->dev;
1777
1778 input_set_drvdata(inputdev, aiptek);
1779
1780 inputdev->open = aiptek_open;
1781 inputdev->close = aiptek_close;
1782
1783 /* Now program the capacities of the tablet, in terms of being
1784 * an input device.
1785 */
1786 for (i = 0; i < ARRAY_SIZE(eventTypes); ++i)
1787 __set_bit(eventTypes[i], inputdev->evbit);
1788
1789 for (i = 0; i < ARRAY_SIZE(absEvents); ++i)
1790 __set_bit(absEvents[i], inputdev->absbit);
1791
1792 for (i = 0; i < ARRAY_SIZE(relEvents); ++i)
1793 __set_bit(relEvents[i], inputdev->relbit);
1794
1795 __set_bit(MSC_SERIAL, inputdev->mscbit);
1796
1797 /* Set up key and button codes */
1798 for (i = 0; i < ARRAY_SIZE(buttonEvents); ++i)
1799 __set_bit(buttonEvents[i], inputdev->keybit);
1800
1801 for (i = 0; i < ARRAY_SIZE(macroKeyEvents); ++i)
1802 __set_bit(macroKeyEvents[i], inputdev->keybit);
1803
1804 /*
1805 * Program the input device coordinate capacities. We do not yet
1806 * know what maximum X, Y, and Z values are, so we're putting fake
1807 * values in. Later, we'll ask the tablet to put in the correct
1808 * values.
1809 */
1810 input_set_abs_params(inputdev, ABS_X, 0, 2999, 0, 0);
1811 input_set_abs_params(inputdev, ABS_Y, 0, 2249, 0, 0);
1812 input_set_abs_params(inputdev, ABS_PRESSURE, 0, 511, 0, 0);
1813 input_set_abs_params(inputdev, ABS_TILT_X, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
1814 input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
1815 input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
1816
1817 endpoint = &intf->altsetting[0].endpoint[0].desc;
1818
1819 /* Go set up our URB, which is called when the tablet receives
1820 * input.
1821 */
1822 usb_fill_int_urb(aiptek->urb,
1823 aiptek->usbdev,
1824 usb_rcvintpipe(aiptek->usbdev,
1825 endpoint->bEndpointAddress),
1826 aiptek->data, 8, aiptek_irq, aiptek,
1827 endpoint->bInterval);
1828
1829 aiptek->urb->transfer_dma = aiptek->data_dma;
1830 aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1831
1832 /* Program the tablet. This sets the tablet up in the mode
1833 * specified in newSetting, and also queries the tablet's
1834 * physical capacities.
1835 *
1836 * Sanity check: if a tablet doesn't like the slow programmatic
1837 * delay, we often get sizes of 0x0. Let's use that as an indicator
1838 * to try faster delays, up to 25 ms. If that logic fails, well, you'll
1839 * have to explain to us how your tablet thinks it's 0x0, and yet that's
1840 * not an error :-)
1841 */
1842
1843 for (i = 0; i < ARRAY_SIZE(speeds); ++i) {
1844 aiptek->curSetting.programmableDelay = speeds[i];
1845 (void)aiptek_program_tablet(aiptek);
1846 if (input_abs_get_max(aiptek->inputdev, ABS_X) > 0) {
1847 dev_info(&intf->dev,
1848 "Aiptek using %d ms programming speed\n",
1849 aiptek->curSetting.programmableDelay);
1850 break;
1851 }
1852 }
1853
1854 /* Murphy says that some day someone will have a tablet that fails the
1855 above test. That's you, Frederic Rodrigo */
1856 if (i == ARRAY_SIZE(speeds)) {
1857 dev_info(&intf->dev,
1858 "Aiptek tried all speeds, no sane response\n");
1859 goto fail2;
1860 }
1861
1862 /* Associate this driver's struct with the usb interface.
1863 */
1864 usb_set_intfdata(intf, aiptek);
1865
1866 /* Set up the sysfs files
1867 */
1868 err = sysfs_create_group(&intf->dev.kobj, &aiptek_attribute_group);
1869 if (err) {
1870 dev_warn(&intf->dev, "cannot create sysfs group err: %d\n",
1871 err);
1872 goto fail3;
1873 }
1874
1875 /* Register the tablet as an Input Device
1876 */
1877 err = input_register_device(aiptek->inputdev);
1878 if (err) {
1879 dev_warn(&intf->dev,
1880 "input_register_device returned err: %d\n", err);
1881 goto fail4;
1882 }
1883 return 0;
1884
1885 fail4: sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
1886 fail3: usb_free_urb(aiptek->urb);
1887 fail2: usb_free_coherent(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
1888 aiptek->data_dma);
1889 fail1: usb_set_intfdata(intf, NULL);
1890 input_free_device(inputdev);
1891 kfree(aiptek);
1892 return err;
1893 }
1894
1895 /***********************************************************************
1896 * Deal with tablet disconnecting from the system.
1897 */
1898 static void aiptek_disconnect(struct usb_interface *intf)
1899 {
1900 struct aiptek *aiptek = usb_get_intfdata(intf);
1901
1902 /* Disassociate driver's struct with usb interface
1903 */
1904 usb_set_intfdata(intf, NULL);
1905 if (aiptek != NULL) {
1906 /* Free & unhook everything from the system.
1907 */
1908 usb_kill_urb(aiptek->urb);
1909 input_unregister_device(aiptek->inputdev);
1910 sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
1911 usb_free_urb(aiptek->urb);
1912 usb_free_coherent(interface_to_usbdev(intf),
1913 AIPTEK_PACKET_LENGTH,
1914 aiptek->data, aiptek->data_dma);
1915 kfree(aiptek);
1916 }
1917 }
1918
1919 static struct usb_driver aiptek_driver = {
1920 .name = "aiptek",
1921 .probe = aiptek_probe,
1922 .disconnect = aiptek_disconnect,
1923 .id_table = aiptek_ids,
1924 };
1925
1926 module_usb_driver(aiptek_driver);
1927
1928 MODULE_AUTHOR(DRIVER_AUTHOR);
1929 MODULE_DESCRIPTION(DRIVER_DESC);
1930 MODULE_LICENSE("GPL");
1931
1932 module_param(programmableDelay, int, 0);
1933 MODULE_PARM_DESC(programmableDelay, "delay used during tablet programming");
1934 module_param(jitterDelay, int, 0);
1935 MODULE_PARM_DESC(jitterDelay, "stylus/mouse settlement delay");