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USB: input: aiptek.c: fix up dev_* messages
[deliverable/linux.git] / drivers / input / tablet / aiptek.c
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 usb_interface *intf; /* usb interface struct */
313 struct urb *urb; /* urb for incoming reports */
314 dma_addr_t data_dma; /* our dma stuffage */
315 struct aiptek_features features; /* tablet's array of features */
316 struct aiptek_settings curSetting; /* tablet's current programmable */
317 struct aiptek_settings newSetting; /* ... and new param settings */
318 unsigned int ifnum; /* interface number for IO */
319 int diagnostic; /* tablet diagnostic codes */
320 unsigned long eventCount; /* event count */
321 int inDelay; /* jitter: in jitter delay? */
322 unsigned long endDelay; /* jitter: time when delay ends */
323 int previousJitterable; /* jitterable prev value */
324
325 int lastMacro; /* macro key to reset */
326 int previousToolMode; /* pen, pencil, brush, etc. tool */
327 unsigned char *data; /* incoming packet data */
328 };
329
330 static const int eventTypes[] = {
331 EV_KEY, EV_ABS, EV_REL, EV_MSC,
332 };
333
334 static const int absEvents[] = {
335 ABS_X, ABS_Y, ABS_PRESSURE, ABS_TILT_X, ABS_TILT_Y,
336 ABS_WHEEL, ABS_MISC,
337 };
338
339 static const int relEvents[] = {
340 REL_X, REL_Y, REL_WHEEL,
341 };
342
343 static const int buttonEvents[] = {
344 BTN_LEFT, BTN_RIGHT, BTN_MIDDLE,
345 BTN_TOOL_PEN, BTN_TOOL_RUBBER, BTN_TOOL_PENCIL, BTN_TOOL_AIRBRUSH,
346 BTN_TOOL_BRUSH, BTN_TOOL_MOUSE, BTN_TOOL_LENS, BTN_TOUCH,
347 BTN_STYLUS, BTN_STYLUS2,
348 };
349
350 /*
351 * Permit easy lookup of keyboard events to send, versus
352 * the bitmap which comes from the tablet. This hides the
353 * issue that the F_keys are not sequentially numbered.
354 */
355 static const int macroKeyEvents[] = {
356 KEY_ESC, KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5,
357 KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11,
358 KEY_F12, KEY_F13, KEY_F14, KEY_F15, KEY_F16, KEY_F17,
359 KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, KEY_F23,
360 KEY_F24, KEY_STOP, KEY_AGAIN, KEY_PROPS, KEY_UNDO,
361 KEY_FRONT, KEY_COPY, KEY_OPEN, KEY_PASTE, 0
362 };
363
364 /***********************************************************************
365 * Map values to strings and back. Every map should have the following
366 * as its last element: { NULL, AIPTEK_INVALID_VALUE }.
367 */
368 #define AIPTEK_INVALID_VALUE -1
369
370 struct aiptek_map {
371 const char *string;
372 int value;
373 };
374
375 static int map_str_to_val(const struct aiptek_map *map, const char *str, size_t count)
376 {
377 const struct aiptek_map *p;
378
379 if (str[count - 1] == '\n')
380 count--;
381
382 for (p = map; p->string; p++)
383 if (!strncmp(str, p->string, count))
384 return p->value;
385
386 return AIPTEK_INVALID_VALUE;
387 }
388
389 static const char *map_val_to_str(const struct aiptek_map *map, int val)
390 {
391 const struct aiptek_map *p;
392
393 for (p = map; p->value != AIPTEK_INVALID_VALUE; p++)
394 if (val == p->value)
395 return p->string;
396
397 return "unknown";
398 }
399
400 /***********************************************************************
401 * aiptek_irq can receive one of six potential reports.
402 * The documentation for each is in the body of the function.
403 *
404 * The tablet reports on several attributes per invocation of
405 * aiptek_irq. Because the Linux Input Event system allows the
406 * transmission of ONE attribute per input_report_xxx() call,
407 * collation has to be done on the other end to reconstitute
408 * a complete tablet report. Further, the number of Input Event reports
409 * submitted varies, depending on what USB report type, and circumstance.
410 * To deal with this, EV_MSC is used to indicate an 'end-of-report'
411 * message. This has been an undocumented convention understood by the kernel
412 * tablet driver and clients such as gpm and XFree86's tablet drivers.
413 *
414 * Of the information received from the tablet, the one piece I
415 * cannot transmit is the proximity bit (without resorting to an EV_MSC
416 * convention above.) I therefore have taken over REL_MISC and ABS_MISC
417 * (for relative and absolute reports, respectively) for communicating
418 * Proximity. Why two events? I thought it interesting to know if the
419 * Proximity event occurred while the tablet was in absolute or relative
420 * mode.
421 * Update: REL_MISC proved not to be such a good idea. With REL_MISC you
422 * get an event transmitted each time. ABS_MISC works better, since it
423 * can be set and re-set. Thus, only using ABS_MISC from now on.
424 *
425 * Other tablets use the notion of a certain minimum stylus pressure
426 * to infer proximity. While that could have been done, that is yet
427 * another 'by convention' behavior, the documentation for which
428 * would be spread between two (or more) pieces of software.
429 *
430 * EV_MSC usage was terminated for this purpose in Linux 2.5.x, and
431 * replaced with the input_sync() method (which emits EV_SYN.)
432 */
433
434 static void aiptek_irq(struct urb *urb)
435 {
436 struct aiptek *aiptek = urb->context;
437 unsigned char *data = aiptek->data;
438 struct input_dev *inputdev = aiptek->inputdev;
439 struct usb_interface *intf = aiptek->intf;
440 int jitterable = 0;
441 int retval, macro, x, y, z, left, right, middle, p, dv, tip, bs, pck;
442
443 switch (urb->status) {
444 case 0:
445 /* Success */
446 break;
447
448 case -ECONNRESET:
449 case -ENOENT:
450 case -ESHUTDOWN:
451 /* This urb is terminated, clean up */
452 dev_dbg(&intf->dev, "%s - urb shutting down with status: %d\n",
453 __func__, urb->status);
454 return;
455
456 default:
457 dev_dbg(&intf->dev, "%s - nonzero urb status received: %d\n",
458 __func__, urb->status);
459 goto exit;
460 }
461
462 /* See if we are in a delay loop -- throw out report if true.
463 */
464 if (aiptek->inDelay == 1 && time_after(aiptek->endDelay, jiffies)) {
465 goto exit;
466 }
467
468 aiptek->inDelay = 0;
469 aiptek->eventCount++;
470
471 /* Report 1 delivers relative coordinates with either a stylus
472 * or the mouse. You do not know, however, which input
473 * tool generated the event.
474 */
475 if (data[0] == 1) {
476 if (aiptek->curSetting.coordinateMode ==
477 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
478 aiptek->diagnostic =
479 AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE;
480 } else {
481 x = (signed char) data[2];
482 y = (signed char) data[3];
483
484 /* jitterable keeps track of whether any button has been pressed.
485 * We're also using it to remap the physical mouse button mask
486 * to pseudo-settings. (We don't specifically care about it's
487 * value after moving/transposing mouse button bitmasks, except
488 * that a non-zero value indicates that one or more
489 * mouse button was pressed.)
490 */
491 jitterable = data[1] & 0x07;
492
493 left = (data[1] & aiptek->curSetting.mouseButtonLeft >> 2) != 0 ? 1 : 0;
494 right = (data[1] & aiptek->curSetting.mouseButtonRight >> 2) != 0 ? 1 : 0;
495 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle >> 2) != 0 ? 1 : 0;
496
497 input_report_key(inputdev, BTN_LEFT, left);
498 input_report_key(inputdev, BTN_MIDDLE, middle);
499 input_report_key(inputdev, BTN_RIGHT, right);
500
501 input_report_abs(inputdev, ABS_MISC,
502 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
503 input_report_rel(inputdev, REL_X, x);
504 input_report_rel(inputdev, REL_Y, y);
505
506 /* Wheel support is in the form of a single-event
507 * firing.
508 */
509 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
510 input_report_rel(inputdev, REL_WHEEL,
511 aiptek->curSetting.wheel);
512 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
513 }
514 if (aiptek->lastMacro != -1) {
515 input_report_key(inputdev,
516 macroKeyEvents[aiptek->lastMacro], 0);
517 aiptek->lastMacro = -1;
518 }
519 input_sync(inputdev);
520 }
521 }
522 /* Report 2 is delivered only by the stylus, and delivers
523 * absolute coordinates.
524 */
525 else if (data[0] == 2) {
526 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
527 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
528 } else if (!AIPTEK_POINTER_ALLOW_STYLUS_MODE
529 (aiptek->curSetting.pointerMode)) {
530 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
531 } else {
532 x = get_unaligned_le16(data + 1);
533 y = get_unaligned_le16(data + 3);
534 z = get_unaligned_le16(data + 6);
535
536 dv = (data[5] & 0x01) != 0 ? 1 : 0;
537 p = (data[5] & 0x02) != 0 ? 1 : 0;
538 tip = (data[5] & 0x04) != 0 ? 1 : 0;
539
540 /* Use jitterable to re-arrange button masks
541 */
542 jitterable = data[5] & 0x18;
543
544 bs = (data[5] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
545 pck = (data[5] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
546
547 /* dv indicates 'data valid' (e.g., the tablet is in sync
548 * and has delivered a "correct" report) We will ignore
549 * all 'bad' reports...
550 */
551 if (dv != 0) {
552 /* If the selected tool changed, reset the old
553 * tool key, and set the new one.
554 */
555 if (aiptek->previousToolMode !=
556 aiptek->curSetting.toolMode) {
557 input_report_key(inputdev,
558 aiptek->previousToolMode, 0);
559 input_report_key(inputdev,
560 aiptek->curSetting.toolMode,
561 1);
562 aiptek->previousToolMode =
563 aiptek->curSetting.toolMode;
564 }
565
566 if (p != 0) {
567 input_report_abs(inputdev, ABS_X, x);
568 input_report_abs(inputdev, ABS_Y, y);
569 input_report_abs(inputdev, ABS_PRESSURE, z);
570
571 input_report_key(inputdev, BTN_TOUCH, tip);
572 input_report_key(inputdev, BTN_STYLUS, bs);
573 input_report_key(inputdev, BTN_STYLUS2, pck);
574
575 if (aiptek->curSetting.xTilt !=
576 AIPTEK_TILT_DISABLE) {
577 input_report_abs(inputdev,
578 ABS_TILT_X,
579 aiptek->curSetting.xTilt);
580 }
581 if (aiptek->curSetting.yTilt != AIPTEK_TILT_DISABLE) {
582 input_report_abs(inputdev,
583 ABS_TILT_Y,
584 aiptek->curSetting.yTilt);
585 }
586
587 /* Wheel support is in the form of a single-event
588 * firing.
589 */
590 if (aiptek->curSetting.wheel !=
591 AIPTEK_WHEEL_DISABLE) {
592 input_report_abs(inputdev,
593 ABS_WHEEL,
594 aiptek->curSetting.wheel);
595 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
596 }
597 }
598 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_STYLUS);
599 if (aiptek->lastMacro != -1) {
600 input_report_key(inputdev,
601 macroKeyEvents[aiptek->lastMacro], 0);
602 aiptek->lastMacro = -1;
603 }
604 input_sync(inputdev);
605 }
606 }
607 }
608 /* Report 3's come from the mouse in absolute mode.
609 */
610 else if (data[0] == 3) {
611 if (aiptek->curSetting.coordinateMode == AIPTEK_COORDINATE_RELATIVE_MODE) {
612 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE;
613 } else if (!AIPTEK_POINTER_ALLOW_MOUSE_MODE
614 (aiptek->curSetting.pointerMode)) {
615 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED;
616 } else {
617 x = get_unaligned_le16(data + 1);
618 y = get_unaligned_le16(data + 3);
619
620 jitterable = data[5] & 0x1c;
621
622 dv = (data[5] & 0x01) != 0 ? 1 : 0;
623 p = (data[5] & 0x02) != 0 ? 1 : 0;
624 left = (data[5] & aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
625 right = (data[5] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
626 middle = (data[5] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
627
628 if (dv != 0) {
629 /* If the selected tool changed, reset the old
630 * tool key, and set the new one.
631 */
632 if (aiptek->previousToolMode !=
633 aiptek->curSetting.toolMode) {
634 input_report_key(inputdev,
635 aiptek->previousToolMode, 0);
636 input_report_key(inputdev,
637 aiptek->curSetting.toolMode,
638 1);
639 aiptek->previousToolMode =
640 aiptek->curSetting.toolMode;
641 }
642
643 if (p != 0) {
644 input_report_abs(inputdev, ABS_X, x);
645 input_report_abs(inputdev, ABS_Y, y);
646
647 input_report_key(inputdev, BTN_LEFT, left);
648 input_report_key(inputdev, BTN_MIDDLE, middle);
649 input_report_key(inputdev, BTN_RIGHT, right);
650
651 /* Wheel support is in the form of a single-event
652 * firing.
653 */
654 if (aiptek->curSetting.wheel != AIPTEK_WHEEL_DISABLE) {
655 input_report_abs(inputdev,
656 ABS_WHEEL,
657 aiptek->curSetting.wheel);
658 aiptek->curSetting.wheel = AIPTEK_WHEEL_DISABLE;
659 }
660 }
661 input_report_abs(inputdev, ABS_MISC, p | AIPTEK_REPORT_TOOL_MOUSE);
662 if (aiptek->lastMacro != -1) {
663 input_report_key(inputdev,
664 macroKeyEvents[aiptek->lastMacro], 0);
665 aiptek->lastMacro = -1;
666 }
667 input_sync(inputdev);
668 }
669 }
670 }
671 /* Report 4s come from the macro keys when pressed by stylus
672 */
673 else if (data[0] == 4) {
674 jitterable = data[1] & 0x18;
675
676 dv = (data[1] & 0x01) != 0 ? 1 : 0;
677 p = (data[1] & 0x02) != 0 ? 1 : 0;
678 tip = (data[1] & 0x04) != 0 ? 1 : 0;
679 bs = (data[1] & aiptek->curSetting.stylusButtonLower) != 0 ? 1 : 0;
680 pck = (data[1] & aiptek->curSetting.stylusButtonUpper) != 0 ? 1 : 0;
681
682 macro = dv && p && tip && !(data[3] & 1) ? (data[3] >> 1) : -1;
683 z = get_unaligned_le16(data + 4);
684
685 if (dv) {
686 /* If the selected tool changed, reset the old
687 * tool key, and set the new one.
688 */
689 if (aiptek->previousToolMode !=
690 aiptek->curSetting.toolMode) {
691 input_report_key(inputdev,
692 aiptek->previousToolMode, 0);
693 input_report_key(inputdev,
694 aiptek->curSetting.toolMode,
695 1);
696 aiptek->previousToolMode =
697 aiptek->curSetting.toolMode;
698 }
699 }
700
701 if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) {
702 input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0);
703 aiptek->lastMacro = -1;
704 }
705
706 if (macro != -1 && macro != aiptek->lastMacro) {
707 input_report_key(inputdev, macroKeyEvents[macro], 1);
708 aiptek->lastMacro = macro;
709 }
710 input_report_abs(inputdev, ABS_MISC,
711 p | AIPTEK_REPORT_TOOL_STYLUS);
712 input_sync(inputdev);
713 }
714 /* Report 5s come from the macro keys when pressed by mouse
715 */
716 else if (data[0] == 5) {
717 jitterable = data[1] & 0x1c;
718
719 dv = (data[1] & 0x01) != 0 ? 1 : 0;
720 p = (data[1] & 0x02) != 0 ? 1 : 0;
721 left = (data[1]& aiptek->curSetting.mouseButtonLeft) != 0 ? 1 : 0;
722 right = (data[1] & aiptek->curSetting.mouseButtonRight) != 0 ? 1 : 0;
723 middle = (data[1] & aiptek->curSetting.mouseButtonMiddle) != 0 ? 1 : 0;
724 macro = dv && p && left && !(data[3] & 1) ? (data[3] >> 1) : 0;
725
726 if (dv) {
727 /* If the selected tool changed, reset the old
728 * tool key, and set the new one.
729 */
730 if (aiptek->previousToolMode !=
731 aiptek->curSetting.toolMode) {
732 input_report_key(inputdev,
733 aiptek->previousToolMode, 0);
734 input_report_key(inputdev,
735 aiptek->curSetting.toolMode, 1);
736 aiptek->previousToolMode = aiptek->curSetting.toolMode;
737 }
738 }
739
740 if (aiptek->lastMacro != -1 && aiptek->lastMacro != macro) {
741 input_report_key(inputdev, macroKeyEvents[aiptek->lastMacro], 0);
742 aiptek->lastMacro = -1;
743 }
744
745 if (macro != -1 && macro != aiptek->lastMacro) {
746 input_report_key(inputdev, macroKeyEvents[macro], 1);
747 aiptek->lastMacro = macro;
748 }
749
750 input_report_abs(inputdev, ABS_MISC,
751 p | AIPTEK_REPORT_TOOL_MOUSE);
752 input_sync(inputdev);
753 }
754 /* We have no idea which tool can generate a report 6. Theoretically,
755 * neither need to, having been given reports 4 & 5 for such use.
756 * However, report 6 is the 'official-looking' report for macroKeys;
757 * reports 4 & 5 supposively are used to support unnamed, unknown
758 * hat switches (which just so happen to be the macroKeys.)
759 */
760 else if (data[0] == 6) {
761 macro = get_unaligned_le16(data + 1);
762 if (macro > 0) {
763 input_report_key(inputdev, macroKeyEvents[macro - 1],
764 0);
765 }
766 if (macro < 25) {
767 input_report_key(inputdev, macroKeyEvents[macro + 1],
768 0);
769 }
770
771 /* If the selected tool changed, reset the old
772 tool key, and set the new one.
773 */
774 if (aiptek->previousToolMode !=
775 aiptek->curSetting.toolMode) {
776 input_report_key(inputdev,
777 aiptek->previousToolMode, 0);
778 input_report_key(inputdev,
779 aiptek->curSetting.toolMode,
780 1);
781 aiptek->previousToolMode =
782 aiptek->curSetting.toolMode;
783 }
784
785 input_report_key(inputdev, macroKeyEvents[macro], 1);
786 input_report_abs(inputdev, ABS_MISC,
787 1 | AIPTEK_REPORT_TOOL_UNKNOWN);
788 input_sync(inputdev);
789 } else {
790 dev_dbg(&intf->dev, "Unknown report %d\n", data[0]);
791 }
792
793 /* Jitter may occur when the user presses a button on the stlyus
794 * or the mouse. What we do to prevent that is wait 'x' milliseconds
795 * following a 'jitterable' event, which should give the hand some time
796 * stabilize itself.
797 *
798 * We just introduced aiptek->previousJitterable to carry forth the
799 * notion that jitter occurs when the button state changes from on to off:
800 * a person drawing, holding a button down is not subject to jittering.
801 * With that in mind, changing from upper button depressed to lower button
802 * WILL transition through a jitter delay.
803 */
804
805 if (aiptek->previousJitterable != jitterable &&
806 aiptek->curSetting.jitterDelay != 0 && aiptek->inDelay != 1) {
807 aiptek->endDelay = jiffies +
808 ((aiptek->curSetting.jitterDelay * HZ) / 1000);
809 aiptek->inDelay = 1;
810 }
811 aiptek->previousJitterable = jitterable;
812
813 exit:
814 retval = usb_submit_urb(urb, GFP_ATOMIC);
815 if (retval != 0) {
816 dev_err(&intf->dev,
817 "%s - usb_submit_urb failed with result %d\n",
818 __func__, retval);
819 }
820 }
821
822 /***********************************************************************
823 * These are the USB id's known so far. We do not identify them to
824 * specific Aiptek model numbers, because there has been overlaps,
825 * use, and reuse of id's in existing models. Certain models have
826 * been known to use more than one ID, indicative perhaps of
827 * manufacturing revisions. In any event, we consider these
828 * IDs to not be model-specific nor unique.
829 */
830 static const struct usb_device_id aiptek_ids[] = {
831 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x01)},
832 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x10)},
833 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x20)},
834 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x21)},
835 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x22)},
836 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x23)},
837 {USB_DEVICE(USB_VENDOR_ID_AIPTEK, 0x24)},
838 {USB_DEVICE(USB_VENDOR_ID_KYE, 0x5003)},
839 {}
840 };
841
842 MODULE_DEVICE_TABLE(usb, aiptek_ids);
843
844 /***********************************************************************
845 * Open an instance of the tablet driver.
846 */
847 static int aiptek_open(struct input_dev *inputdev)
848 {
849 struct aiptek *aiptek = input_get_drvdata(inputdev);
850
851 aiptek->urb->dev = aiptek->usbdev;
852 if (usb_submit_urb(aiptek->urb, GFP_KERNEL) != 0)
853 return -EIO;
854
855 return 0;
856 }
857
858 /***********************************************************************
859 * Close an instance of the tablet driver.
860 */
861 static void aiptek_close(struct input_dev *inputdev)
862 {
863 struct aiptek *aiptek = input_get_drvdata(inputdev);
864
865 usb_kill_urb(aiptek->urb);
866 }
867
868 /***********************************************************************
869 * aiptek_set_report and aiptek_get_report() are borrowed from Linux 2.4.x,
870 * where they were known as usb_set_report and usb_get_report.
871 */
872 static int
873 aiptek_set_report(struct aiptek *aiptek,
874 unsigned char report_type,
875 unsigned char report_id, void *buffer, int size)
876 {
877 return usb_control_msg(aiptek->usbdev,
878 usb_sndctrlpipe(aiptek->usbdev, 0),
879 USB_REQ_SET_REPORT,
880 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
881 USB_DIR_OUT, (report_type << 8) + report_id,
882 aiptek->ifnum, buffer, size, 5000);
883 }
884
885 static int
886 aiptek_get_report(struct aiptek *aiptek,
887 unsigned char report_type,
888 unsigned char report_id, void *buffer, int size)
889 {
890 return usb_control_msg(aiptek->usbdev,
891 usb_rcvctrlpipe(aiptek->usbdev, 0),
892 USB_REQ_GET_REPORT,
893 USB_TYPE_CLASS | USB_RECIP_INTERFACE |
894 USB_DIR_IN, (report_type << 8) + report_id,
895 aiptek->ifnum, buffer, size, 5000);
896 }
897
898 /***********************************************************************
899 * Send a command to the tablet.
900 */
901 static int
902 aiptek_command(struct aiptek *aiptek, unsigned char command, unsigned char data)
903 {
904 const int sizeof_buf = 3 * sizeof(u8);
905 int ret;
906 u8 *buf;
907
908 buf = kmalloc(sizeof_buf, GFP_KERNEL);
909 if (!buf)
910 return -ENOMEM;
911
912 buf[0] = 2;
913 buf[1] = command;
914 buf[2] = data;
915
916 if ((ret =
917 aiptek_set_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
918 dev_dbg(&aiptek->intf->dev,
919 "aiptek_program: failed, tried to send: 0x%02x 0x%02x\n",
920 command, data);
921 }
922 kfree(buf);
923 return ret < 0 ? ret : 0;
924 }
925
926 /***********************************************************************
927 * Retrieve information from the tablet. Querying info is defined as first
928 * sending the {command,data} sequence as a command, followed by a wait
929 * (aka, "programmaticDelay") and then a "read" request.
930 */
931 static int
932 aiptek_query(struct aiptek *aiptek, unsigned char command, unsigned char data)
933 {
934 const int sizeof_buf = 3 * sizeof(u8);
935 int ret;
936 u8 *buf;
937
938 buf = kmalloc(sizeof_buf, GFP_KERNEL);
939 if (!buf)
940 return -ENOMEM;
941
942 buf[0] = 2;
943 buf[1] = command;
944 buf[2] = data;
945
946 if (aiptek_command(aiptek, command, data) != 0) {
947 kfree(buf);
948 return -EIO;
949 }
950 msleep(aiptek->curSetting.programmableDelay);
951
952 if ((ret =
953 aiptek_get_report(aiptek, 3, 2, buf, sizeof_buf)) != sizeof_buf) {
954 dev_dbg(&aiptek->intf->dev,
955 "aiptek_query failed: returned 0x%02x 0x%02x 0x%02x\n",
956 buf[0], buf[1], buf[2]);
957 ret = -EIO;
958 } else {
959 ret = get_unaligned_le16(buf + 1);
960 }
961 kfree(buf);
962 return ret;
963 }
964
965 /***********************************************************************
966 * Program the tablet into either absolute or relative mode.
967 * We also get information about the tablet's size.
968 */
969 static int aiptek_program_tablet(struct aiptek *aiptek)
970 {
971 int ret;
972 /* Execute Resolution500LPI */
973 if ((ret = aiptek_command(aiptek, 0x18, 0x04)) < 0)
974 return ret;
975
976 /* Query getModelCode */
977 if ((ret = aiptek_query(aiptek, 0x02, 0x00)) < 0)
978 return ret;
979 aiptek->features.modelCode = ret & 0xff;
980
981 /* Query getODMCode */
982 if ((ret = aiptek_query(aiptek, 0x03, 0x00)) < 0)
983 return ret;
984 aiptek->features.odmCode = ret;
985
986 /* Query getFirmwareCode */
987 if ((ret = aiptek_query(aiptek, 0x04, 0x00)) < 0)
988 return ret;
989 aiptek->features.firmwareCode = ret;
990
991 /* Query getXextension */
992 if ((ret = aiptek_query(aiptek, 0x01, 0x00)) < 0)
993 return ret;
994 input_set_abs_params(aiptek->inputdev, ABS_X, 0, ret - 1, 0, 0);
995
996 /* Query getYextension */
997 if ((ret = aiptek_query(aiptek, 0x01, 0x01)) < 0)
998 return ret;
999 input_set_abs_params(aiptek->inputdev, ABS_Y, 0, ret - 1, 0, 0);
1000
1001 /* Query getPressureLevels */
1002 if ((ret = aiptek_query(aiptek, 0x08, 0x00)) < 0)
1003 return ret;
1004 input_set_abs_params(aiptek->inputdev, ABS_PRESSURE, 0, ret - 1, 0, 0);
1005
1006 /* Depending on whether we are in absolute or relative mode, we will
1007 * do a switchToTablet(absolute) or switchToMouse(relative) command.
1008 */
1009 if (aiptek->curSetting.coordinateMode ==
1010 AIPTEK_COORDINATE_ABSOLUTE_MODE) {
1011 /* Execute switchToTablet */
1012 if ((ret = aiptek_command(aiptek, 0x10, 0x01)) < 0) {
1013 return ret;
1014 }
1015 } else {
1016 /* Execute switchToMouse */
1017 if ((ret = aiptek_command(aiptek, 0x10, 0x00)) < 0) {
1018 return ret;
1019 }
1020 }
1021
1022 /* Enable the macro keys */
1023 if ((ret = aiptek_command(aiptek, 0x11, 0x02)) < 0)
1024 return ret;
1025 #if 0
1026 /* Execute FilterOn */
1027 if ((ret = aiptek_command(aiptek, 0x17, 0x00)) < 0)
1028 return ret;
1029 #endif
1030
1031 /* Execute AutoGainOn */
1032 if ((ret = aiptek_command(aiptek, 0x12, 0xff)) < 0)
1033 return ret;
1034
1035 /* Reset the eventCount, so we track events from last (re)programming
1036 */
1037 aiptek->diagnostic = AIPTEK_DIAGNOSTIC_NA;
1038 aiptek->eventCount = 0;
1039
1040 return 0;
1041 }
1042
1043 /***********************************************************************
1044 * Sysfs functions. Sysfs prefers that individually-tunable parameters
1045 * exist in their separate pseudo-files. Summary data that is immutable
1046 * may exist in a singular file so long as you don't define a writeable
1047 * interface.
1048 */
1049
1050 /***********************************************************************
1051 * support the 'size' file -- display support
1052 */
1053 static ssize_t show_tabletSize(struct device *dev, struct device_attribute *attr, char *buf)
1054 {
1055 struct aiptek *aiptek = dev_get_drvdata(dev);
1056
1057 return snprintf(buf, PAGE_SIZE, "%dx%d\n",
1058 input_abs_get_max(aiptek->inputdev, ABS_X) + 1,
1059 input_abs_get_max(aiptek->inputdev, ABS_Y) + 1);
1060 }
1061
1062 /* These structs define the sysfs files, param #1 is the name of the
1063 * file, param 2 is the file permissions, param 3 & 4 are to the
1064 * output generator and input parser routines. Absence of a routine is
1065 * permitted -- it only means can't either 'cat' the file, or send data
1066 * to it.
1067 */
1068 static DEVICE_ATTR(size, S_IRUGO, show_tabletSize, NULL);
1069
1070 /***********************************************************************
1071 * support routines for the 'pointer_mode' file. Note that this file
1072 * both displays current setting and allows reprogramming.
1073 */
1074 static struct aiptek_map pointer_mode_map[] = {
1075 { "stylus", AIPTEK_POINTER_ONLY_STYLUS_MODE },
1076 { "mouse", AIPTEK_POINTER_ONLY_MOUSE_MODE },
1077 { "either", AIPTEK_POINTER_EITHER_MODE },
1078 { NULL, AIPTEK_INVALID_VALUE }
1079 };
1080
1081 static ssize_t show_tabletPointerMode(struct device *dev, struct device_attribute *attr, char *buf)
1082 {
1083 struct aiptek *aiptek = dev_get_drvdata(dev);
1084
1085 return snprintf(buf, PAGE_SIZE, "%s\n",
1086 map_val_to_str(pointer_mode_map,
1087 aiptek->curSetting.pointerMode));
1088 }
1089
1090 static ssize_t
1091 store_tabletPointerMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1092 {
1093 struct aiptek *aiptek = dev_get_drvdata(dev);
1094 int new_mode = map_str_to_val(pointer_mode_map, buf, count);
1095
1096 if (new_mode == AIPTEK_INVALID_VALUE)
1097 return -EINVAL;
1098
1099 aiptek->newSetting.pointerMode = new_mode;
1100 return count;
1101 }
1102
1103 static DEVICE_ATTR(pointer_mode,
1104 S_IRUGO | S_IWUSR,
1105 show_tabletPointerMode, store_tabletPointerMode);
1106
1107 /***********************************************************************
1108 * support routines for the 'coordinate_mode' file. Note that this file
1109 * both displays current setting and allows reprogramming.
1110 */
1111
1112 static struct aiptek_map coordinate_mode_map[] = {
1113 { "absolute", AIPTEK_COORDINATE_ABSOLUTE_MODE },
1114 { "relative", AIPTEK_COORDINATE_RELATIVE_MODE },
1115 { NULL, AIPTEK_INVALID_VALUE }
1116 };
1117
1118 static ssize_t show_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, char *buf)
1119 {
1120 struct aiptek *aiptek = dev_get_drvdata(dev);
1121
1122 return snprintf(buf, PAGE_SIZE, "%s\n",
1123 map_val_to_str(coordinate_mode_map,
1124 aiptek->curSetting.coordinateMode));
1125 }
1126
1127 static ssize_t
1128 store_tabletCoordinateMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1129 {
1130 struct aiptek *aiptek = dev_get_drvdata(dev);
1131 int new_mode = map_str_to_val(coordinate_mode_map, buf, count);
1132
1133 if (new_mode == AIPTEK_INVALID_VALUE)
1134 return -EINVAL;
1135
1136 aiptek->newSetting.coordinateMode = new_mode;
1137 return count;
1138 }
1139
1140 static DEVICE_ATTR(coordinate_mode,
1141 S_IRUGO | S_IWUSR,
1142 show_tabletCoordinateMode, store_tabletCoordinateMode);
1143
1144 /***********************************************************************
1145 * support routines for the 'tool_mode' file. Note that this file
1146 * both displays current setting and allows reprogramming.
1147 */
1148
1149 static struct aiptek_map tool_mode_map[] = {
1150 { "mouse", AIPTEK_TOOL_BUTTON_MOUSE_MODE },
1151 { "eraser", AIPTEK_TOOL_BUTTON_ERASER_MODE },
1152 { "pencil", AIPTEK_TOOL_BUTTON_PENCIL_MODE },
1153 { "pen", AIPTEK_TOOL_BUTTON_PEN_MODE },
1154 { "brush", AIPTEK_TOOL_BUTTON_BRUSH_MODE },
1155 { "airbrush", AIPTEK_TOOL_BUTTON_AIRBRUSH_MODE },
1156 { "lens", AIPTEK_TOOL_BUTTON_LENS_MODE },
1157 { NULL, AIPTEK_INVALID_VALUE }
1158 };
1159
1160 static ssize_t show_tabletToolMode(struct device *dev, struct device_attribute *attr, char *buf)
1161 {
1162 struct aiptek *aiptek = dev_get_drvdata(dev);
1163
1164 return snprintf(buf, PAGE_SIZE, "%s\n",
1165 map_val_to_str(tool_mode_map,
1166 aiptek->curSetting.toolMode));
1167 }
1168
1169 static ssize_t
1170 store_tabletToolMode(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1171 {
1172 struct aiptek *aiptek = dev_get_drvdata(dev);
1173 int new_mode = map_str_to_val(tool_mode_map, buf, count);
1174
1175 if (new_mode == AIPTEK_INVALID_VALUE)
1176 return -EINVAL;
1177
1178 aiptek->newSetting.toolMode = new_mode;
1179 return count;
1180 }
1181
1182 static DEVICE_ATTR(tool_mode,
1183 S_IRUGO | S_IWUSR,
1184 show_tabletToolMode, store_tabletToolMode);
1185
1186 /***********************************************************************
1187 * support routines for the 'xtilt' file. Note that this file
1188 * both displays current setting and allows reprogramming.
1189 */
1190 static ssize_t show_tabletXtilt(struct device *dev, struct device_attribute *attr, char *buf)
1191 {
1192 struct aiptek *aiptek = dev_get_drvdata(dev);
1193
1194 if (aiptek->curSetting.xTilt == AIPTEK_TILT_DISABLE) {
1195 return snprintf(buf, PAGE_SIZE, "disable\n");
1196 } else {
1197 return snprintf(buf, PAGE_SIZE, "%d\n",
1198 aiptek->curSetting.xTilt);
1199 }
1200 }
1201
1202 static ssize_t
1203 store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1204 {
1205 struct aiptek *aiptek = dev_get_drvdata(dev);
1206 int x;
1207
1208 if (kstrtoint(buf, 10, &x)) {
1209 size_t len = buf[count - 1] == '\n' ? count - 1 : count;
1210
1211 if (strncmp(buf, "disable", len))
1212 return -EINVAL;
1213
1214 aiptek->newSetting.xTilt = AIPTEK_TILT_DISABLE;
1215 } else {
1216 if (x < AIPTEK_TILT_MIN || x > AIPTEK_TILT_MAX)
1217 return -EINVAL;
1218
1219 aiptek->newSetting.xTilt = x;
1220 }
1221
1222 return count;
1223 }
1224
1225 static DEVICE_ATTR(xtilt,
1226 S_IRUGO | S_IWUSR, show_tabletXtilt, store_tabletXtilt);
1227
1228 /***********************************************************************
1229 * support routines for the 'ytilt' file. Note that this file
1230 * both displays current setting and allows reprogramming.
1231 */
1232 static ssize_t show_tabletYtilt(struct device *dev, struct device_attribute *attr, char *buf)
1233 {
1234 struct aiptek *aiptek = dev_get_drvdata(dev);
1235
1236 if (aiptek->curSetting.yTilt == AIPTEK_TILT_DISABLE) {
1237 return snprintf(buf, PAGE_SIZE, "disable\n");
1238 } else {
1239 return snprintf(buf, PAGE_SIZE, "%d\n",
1240 aiptek->curSetting.yTilt);
1241 }
1242 }
1243
1244 static ssize_t
1245 store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1246 {
1247 struct aiptek *aiptek = dev_get_drvdata(dev);
1248 int y;
1249
1250 if (kstrtoint(buf, 10, &y)) {
1251 size_t len = buf[count - 1] == '\n' ? count - 1 : count;
1252
1253 if (strncmp(buf, "disable", len))
1254 return -EINVAL;
1255
1256 aiptek->newSetting.yTilt = AIPTEK_TILT_DISABLE;
1257 } else {
1258 if (y < AIPTEK_TILT_MIN || y > AIPTEK_TILT_MAX)
1259 return -EINVAL;
1260
1261 aiptek->newSetting.yTilt = y;
1262 }
1263
1264 return count;
1265 }
1266
1267 static DEVICE_ATTR(ytilt,
1268 S_IRUGO | S_IWUSR, show_tabletYtilt, store_tabletYtilt);
1269
1270 /***********************************************************************
1271 * support routines for the 'jitter' file. Note that this file
1272 * both displays current setting and allows reprogramming.
1273 */
1274 static ssize_t show_tabletJitterDelay(struct device *dev, struct device_attribute *attr, char *buf)
1275 {
1276 struct aiptek *aiptek = dev_get_drvdata(dev);
1277
1278 return snprintf(buf, PAGE_SIZE, "%d\n", aiptek->curSetting.jitterDelay);
1279 }
1280
1281 static ssize_t
1282 store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1283 {
1284 struct aiptek *aiptek = dev_get_drvdata(dev);
1285 int err, j;
1286
1287 err = kstrtoint(buf, 10, &j);
1288 if (err)
1289 return err;
1290
1291 aiptek->newSetting.jitterDelay = j;
1292 return count;
1293 }
1294
1295 static DEVICE_ATTR(jitter,
1296 S_IRUGO | S_IWUSR,
1297 show_tabletJitterDelay, store_tabletJitterDelay);
1298
1299 /***********************************************************************
1300 * support routines for the 'delay' file. Note that this file
1301 * both displays current setting and allows reprogramming.
1302 */
1303 static ssize_t show_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, char *buf)
1304 {
1305 struct aiptek *aiptek = dev_get_drvdata(dev);
1306
1307 return snprintf(buf, PAGE_SIZE, "%d\n",
1308 aiptek->curSetting.programmableDelay);
1309 }
1310
1311 static ssize_t
1312 store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1313 {
1314 struct aiptek *aiptek = dev_get_drvdata(dev);
1315 int err, d;
1316
1317 err = kstrtoint(buf, 10, &d);
1318 if (err)
1319 return err;
1320
1321 aiptek->newSetting.programmableDelay = d;
1322 return count;
1323 }
1324
1325 static DEVICE_ATTR(delay,
1326 S_IRUGO | S_IWUSR,
1327 show_tabletProgrammableDelay, store_tabletProgrammableDelay);
1328
1329 /***********************************************************************
1330 * support routines for the 'event_count' file. Note that this file
1331 * only displays current setting.
1332 */
1333 static ssize_t show_tabletEventsReceived(struct device *dev, struct device_attribute *attr, char *buf)
1334 {
1335 struct aiptek *aiptek = dev_get_drvdata(dev);
1336
1337 return snprintf(buf, PAGE_SIZE, "%ld\n", aiptek->eventCount);
1338 }
1339
1340 static DEVICE_ATTR(event_count, S_IRUGO, show_tabletEventsReceived, NULL);
1341
1342 /***********************************************************************
1343 * support routines for the 'diagnostic' file. Note that this file
1344 * only displays current setting.
1345 */
1346 static ssize_t show_tabletDiagnosticMessage(struct device *dev, struct device_attribute *attr, char *buf)
1347 {
1348 struct aiptek *aiptek = dev_get_drvdata(dev);
1349 char *retMsg;
1350
1351 switch (aiptek->diagnostic) {
1352 case AIPTEK_DIAGNOSTIC_NA:
1353 retMsg = "no errors\n";
1354 break;
1355
1356 case AIPTEK_DIAGNOSTIC_SENDING_RELATIVE_IN_ABSOLUTE:
1357 retMsg = "Error: receiving relative reports\n";
1358 break;
1359
1360 case AIPTEK_DIAGNOSTIC_SENDING_ABSOLUTE_IN_RELATIVE:
1361 retMsg = "Error: receiving absolute reports\n";
1362 break;
1363
1364 case AIPTEK_DIAGNOSTIC_TOOL_DISALLOWED:
1365 if (aiptek->curSetting.pointerMode ==
1366 AIPTEK_POINTER_ONLY_MOUSE_MODE) {
1367 retMsg = "Error: receiving stylus reports\n";
1368 } else {
1369 retMsg = "Error: receiving mouse reports\n";
1370 }
1371 break;
1372
1373 default:
1374 return 0;
1375 }
1376 return snprintf(buf, PAGE_SIZE, retMsg);
1377 }
1378
1379 static DEVICE_ATTR(diagnostic, S_IRUGO, show_tabletDiagnosticMessage, NULL);
1380
1381 /***********************************************************************
1382 * support routines for the 'stylus_upper' file. Note that this file
1383 * both displays current setting and allows for setting changing.
1384 */
1385
1386 static struct aiptek_map stylus_button_map[] = {
1387 { "upper", AIPTEK_STYLUS_UPPER_BUTTON },
1388 { "lower", AIPTEK_STYLUS_LOWER_BUTTON },
1389 { NULL, AIPTEK_INVALID_VALUE }
1390 };
1391
1392 static ssize_t show_tabletStylusUpper(struct device *dev, struct device_attribute *attr, char *buf)
1393 {
1394 struct aiptek *aiptek = dev_get_drvdata(dev);
1395
1396 return snprintf(buf, PAGE_SIZE, "%s\n",
1397 map_val_to_str(stylus_button_map,
1398 aiptek->curSetting.stylusButtonUpper));
1399 }
1400
1401 static ssize_t
1402 store_tabletStylusUpper(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1403 {
1404 struct aiptek *aiptek = dev_get_drvdata(dev);
1405 int new_button = map_str_to_val(stylus_button_map, buf, count);
1406
1407 if (new_button == AIPTEK_INVALID_VALUE)
1408 return -EINVAL;
1409
1410 aiptek->newSetting.stylusButtonUpper = new_button;
1411 return count;
1412 }
1413
1414 static DEVICE_ATTR(stylus_upper,
1415 S_IRUGO | S_IWUSR,
1416 show_tabletStylusUpper, store_tabletStylusUpper);
1417
1418 /***********************************************************************
1419 * support routines for the 'stylus_lower' file. Note that this file
1420 * both displays current setting and allows for setting changing.
1421 */
1422
1423 static ssize_t show_tabletStylusLower(struct device *dev, struct device_attribute *attr, char *buf)
1424 {
1425 struct aiptek *aiptek = dev_get_drvdata(dev);
1426
1427 return snprintf(buf, PAGE_SIZE, "%s\n",
1428 map_val_to_str(stylus_button_map,
1429 aiptek->curSetting.stylusButtonLower));
1430 }
1431
1432 static ssize_t
1433 store_tabletStylusLower(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1434 {
1435 struct aiptek *aiptek = dev_get_drvdata(dev);
1436 int new_button = map_str_to_val(stylus_button_map, buf, count);
1437
1438 if (new_button == AIPTEK_INVALID_VALUE)
1439 return -EINVAL;
1440
1441 aiptek->newSetting.stylusButtonLower = new_button;
1442 return count;
1443 }
1444
1445 static DEVICE_ATTR(stylus_lower,
1446 S_IRUGO | S_IWUSR,
1447 show_tabletStylusLower, store_tabletStylusLower);
1448
1449 /***********************************************************************
1450 * support routines for the 'mouse_left' file. Note that this file
1451 * both displays current setting and allows for setting changing.
1452 */
1453
1454 static struct aiptek_map mouse_button_map[] = {
1455 { "left", AIPTEK_MOUSE_LEFT_BUTTON },
1456 { "middle", AIPTEK_MOUSE_MIDDLE_BUTTON },
1457 { "right", AIPTEK_MOUSE_RIGHT_BUTTON },
1458 { NULL, AIPTEK_INVALID_VALUE }
1459 };
1460
1461 static ssize_t show_tabletMouseLeft(struct device *dev, struct device_attribute *attr, char *buf)
1462 {
1463 struct aiptek *aiptek = dev_get_drvdata(dev);
1464
1465 return snprintf(buf, PAGE_SIZE, "%s\n",
1466 map_val_to_str(mouse_button_map,
1467 aiptek->curSetting.mouseButtonLeft));
1468 }
1469
1470 static ssize_t
1471 store_tabletMouseLeft(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1472 {
1473 struct aiptek *aiptek = dev_get_drvdata(dev);
1474 int new_button = map_str_to_val(mouse_button_map, buf, count);
1475
1476 if (new_button == AIPTEK_INVALID_VALUE)
1477 return -EINVAL;
1478
1479 aiptek->newSetting.mouseButtonLeft = new_button;
1480 return count;
1481 }
1482
1483 static DEVICE_ATTR(mouse_left,
1484 S_IRUGO | S_IWUSR,
1485 show_tabletMouseLeft, store_tabletMouseLeft);
1486
1487 /***********************************************************************
1488 * support routines for the 'mouse_middle' file. Note that this file
1489 * both displays current setting and allows for setting changing.
1490 */
1491 static ssize_t show_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, char *buf)
1492 {
1493 struct aiptek *aiptek = dev_get_drvdata(dev);
1494
1495 return snprintf(buf, PAGE_SIZE, "%s\n",
1496 map_val_to_str(mouse_button_map,
1497 aiptek->curSetting.mouseButtonMiddle));
1498 }
1499
1500 static ssize_t
1501 store_tabletMouseMiddle(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1502 {
1503 struct aiptek *aiptek = dev_get_drvdata(dev);
1504 int new_button = map_str_to_val(mouse_button_map, buf, count);
1505
1506 if (new_button == AIPTEK_INVALID_VALUE)
1507 return -EINVAL;
1508
1509 aiptek->newSetting.mouseButtonMiddle = new_button;
1510 return count;
1511 }
1512
1513 static DEVICE_ATTR(mouse_middle,
1514 S_IRUGO | S_IWUSR,
1515 show_tabletMouseMiddle, store_tabletMouseMiddle);
1516
1517 /***********************************************************************
1518 * support routines for the 'mouse_right' file. Note that this file
1519 * both displays current setting and allows for setting changing.
1520 */
1521 static ssize_t show_tabletMouseRight(struct device *dev, struct device_attribute *attr, char *buf)
1522 {
1523 struct aiptek *aiptek = dev_get_drvdata(dev);
1524
1525 return snprintf(buf, PAGE_SIZE, "%s\n",
1526 map_val_to_str(mouse_button_map,
1527 aiptek->curSetting.mouseButtonRight));
1528 }
1529
1530 static ssize_t
1531 store_tabletMouseRight(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1532 {
1533 struct aiptek *aiptek = dev_get_drvdata(dev);
1534 int new_button = map_str_to_val(mouse_button_map, buf, count);
1535
1536 if (new_button == AIPTEK_INVALID_VALUE)
1537 return -EINVAL;
1538
1539 aiptek->newSetting.mouseButtonRight = new_button;
1540 return count;
1541 }
1542
1543 static DEVICE_ATTR(mouse_right,
1544 S_IRUGO | S_IWUSR,
1545 show_tabletMouseRight, store_tabletMouseRight);
1546
1547 /***********************************************************************
1548 * support routines for the 'wheel' file. Note that this file
1549 * both displays current setting and allows for setting changing.
1550 */
1551 static ssize_t show_tabletWheel(struct device *dev, struct device_attribute *attr, char *buf)
1552 {
1553 struct aiptek *aiptek = dev_get_drvdata(dev);
1554
1555 if (aiptek->curSetting.wheel == AIPTEK_WHEEL_DISABLE) {
1556 return snprintf(buf, PAGE_SIZE, "disable\n");
1557 } else {
1558 return snprintf(buf, PAGE_SIZE, "%d\n",
1559 aiptek->curSetting.wheel);
1560 }
1561 }
1562
1563 static ssize_t
1564 store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1565 {
1566 struct aiptek *aiptek = dev_get_drvdata(dev);
1567 int err, w;
1568
1569 err = kstrtoint(buf, 10, &w);
1570 if (err)
1571 return err;
1572
1573 aiptek->newSetting.wheel = w;
1574 return count;
1575 }
1576
1577 static DEVICE_ATTR(wheel,
1578 S_IRUGO | S_IWUSR, show_tabletWheel, store_tabletWheel);
1579
1580 /***********************************************************************
1581 * support routines for the 'execute' file. Note that this file
1582 * both displays current setting and allows for setting changing.
1583 */
1584 static ssize_t show_tabletExecute(struct device *dev, struct device_attribute *attr, char *buf)
1585 {
1586 /* There is nothing useful to display, so a one-line manual
1587 * is in order...
1588 */
1589 return snprintf(buf, PAGE_SIZE,
1590 "Write anything to this file to program your tablet.\n");
1591 }
1592
1593 static ssize_t
1594 store_tabletExecute(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
1595 {
1596 struct aiptek *aiptek = dev_get_drvdata(dev);
1597
1598 /* We do not care what you write to this file. Merely the action
1599 * of writing to this file triggers a tablet reprogramming.
1600 */
1601 memcpy(&aiptek->curSetting, &aiptek->newSetting,
1602 sizeof(struct aiptek_settings));
1603
1604 if (aiptek_program_tablet(aiptek) < 0)
1605 return -EIO;
1606
1607 return count;
1608 }
1609
1610 static DEVICE_ATTR(execute,
1611 S_IRUGO | S_IWUSR, show_tabletExecute, store_tabletExecute);
1612
1613 /***********************************************************************
1614 * support routines for the 'odm_code' file. Note that this file
1615 * only displays current setting.
1616 */
1617 static ssize_t show_tabletODMCode(struct device *dev, struct device_attribute *attr, char *buf)
1618 {
1619 struct aiptek *aiptek = dev_get_drvdata(dev);
1620
1621 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.odmCode);
1622 }
1623
1624 static DEVICE_ATTR(odm_code, S_IRUGO, show_tabletODMCode, NULL);
1625
1626 /***********************************************************************
1627 * support routines for the 'model_code' file. Note that this file
1628 * only displays current setting.
1629 */
1630 static ssize_t show_tabletModelCode(struct device *dev, struct device_attribute *attr, char *buf)
1631 {
1632 struct aiptek *aiptek = dev_get_drvdata(dev);
1633
1634 return snprintf(buf, PAGE_SIZE, "0x%04x\n", aiptek->features.modelCode);
1635 }
1636
1637 static DEVICE_ATTR(model_code, S_IRUGO, show_tabletModelCode, NULL);
1638
1639 /***********************************************************************
1640 * support routines for the 'firmware_code' file. Note that this file
1641 * only displays current setting.
1642 */
1643 static ssize_t show_firmwareCode(struct device *dev, struct device_attribute *attr, char *buf)
1644 {
1645 struct aiptek *aiptek = dev_get_drvdata(dev);
1646
1647 return snprintf(buf, PAGE_SIZE, "%04x\n",
1648 aiptek->features.firmwareCode);
1649 }
1650
1651 static DEVICE_ATTR(firmware_code, S_IRUGO, show_firmwareCode, NULL);
1652
1653 static struct attribute *aiptek_attributes[] = {
1654 &dev_attr_size.attr,
1655 &dev_attr_pointer_mode.attr,
1656 &dev_attr_coordinate_mode.attr,
1657 &dev_attr_tool_mode.attr,
1658 &dev_attr_xtilt.attr,
1659 &dev_attr_ytilt.attr,
1660 &dev_attr_jitter.attr,
1661 &dev_attr_delay.attr,
1662 &dev_attr_event_count.attr,
1663 &dev_attr_diagnostic.attr,
1664 &dev_attr_odm_code.attr,
1665 &dev_attr_model_code.attr,
1666 &dev_attr_firmware_code.attr,
1667 &dev_attr_stylus_lower.attr,
1668 &dev_attr_stylus_upper.attr,
1669 &dev_attr_mouse_left.attr,
1670 &dev_attr_mouse_middle.attr,
1671 &dev_attr_mouse_right.attr,
1672 &dev_attr_wheel.attr,
1673 &dev_attr_execute.attr,
1674 NULL
1675 };
1676
1677 static struct attribute_group aiptek_attribute_group = {
1678 .attrs = aiptek_attributes,
1679 };
1680
1681 /***********************************************************************
1682 * This routine is called when a tablet has been identified. It basically
1683 * sets up the tablet and the driver's internal structures.
1684 */
1685 static int
1686 aiptek_probe(struct usb_interface *intf, const struct usb_device_id *id)
1687 {
1688 struct usb_device *usbdev = interface_to_usbdev(intf);
1689 struct usb_endpoint_descriptor *endpoint;
1690 struct aiptek *aiptek;
1691 struct input_dev *inputdev;
1692 int i;
1693 int speeds[] = { 0,
1694 AIPTEK_PROGRAMMABLE_DELAY_50,
1695 AIPTEK_PROGRAMMABLE_DELAY_400,
1696 AIPTEK_PROGRAMMABLE_DELAY_25,
1697 AIPTEK_PROGRAMMABLE_DELAY_100,
1698 AIPTEK_PROGRAMMABLE_DELAY_200,
1699 AIPTEK_PROGRAMMABLE_DELAY_300
1700 };
1701 int err = -ENOMEM;
1702
1703 /* programmableDelay is where the command-line specified
1704 * delay is kept. We make it the first element of speeds[],
1705 * so therefore, your override speed is tried first, then the
1706 * remainder. Note that the default value of 400ms will be tried
1707 * if you do not specify any command line parameter.
1708 */
1709 speeds[0] = programmableDelay;
1710
1711 aiptek = kzalloc(sizeof(struct aiptek), GFP_KERNEL);
1712 inputdev = input_allocate_device();
1713 if (!aiptek || !inputdev) {
1714 dev_warn(&intf->dev,
1715 "cannot allocate memory or input device\n");
1716 goto fail1;
1717 }
1718
1719 aiptek->data = usb_alloc_coherent(usbdev, AIPTEK_PACKET_LENGTH,
1720 GFP_ATOMIC, &aiptek->data_dma);
1721 if (!aiptek->data) {
1722 dev_warn(&intf->dev, "cannot allocate usb buffer\n");
1723 goto fail1;
1724 }
1725
1726 aiptek->urb = usb_alloc_urb(0, GFP_KERNEL);
1727 if (!aiptek->urb) {
1728 dev_warn(&intf->dev, "cannot allocate urb\n");
1729 goto fail2;
1730 }
1731
1732 aiptek->inputdev = inputdev;
1733 aiptek->usbdev = usbdev;
1734 aiptek->intf = intf;
1735 aiptek->ifnum = intf->altsetting[0].desc.bInterfaceNumber;
1736 aiptek->inDelay = 0;
1737 aiptek->endDelay = 0;
1738 aiptek->previousJitterable = 0;
1739 aiptek->lastMacro = -1;
1740
1741 /* Set up the curSettings struct. Said struct contains the current
1742 * programmable parameters. The newSetting struct contains changes
1743 * the user makes to the settings via the sysfs interface. Those
1744 * changes are not "committed" to curSettings until the user
1745 * writes to the sysfs/.../execute file.
1746 */
1747 aiptek->curSetting.pointerMode = AIPTEK_POINTER_EITHER_MODE;
1748 aiptek->curSetting.coordinateMode = AIPTEK_COORDINATE_ABSOLUTE_MODE;
1749 aiptek->curSetting.toolMode = AIPTEK_TOOL_BUTTON_PEN_MODE;
1750 aiptek->curSetting.xTilt = AIPTEK_TILT_DISABLE;
1751 aiptek->curSetting.yTilt = AIPTEK_TILT_DISABLE;
1752 aiptek->curSetting.mouseButtonLeft = AIPTEK_MOUSE_LEFT_BUTTON;
1753 aiptek->curSetting.mouseButtonMiddle = AIPTEK_MOUSE_MIDDLE_BUTTON;
1754 aiptek->curSetting.mouseButtonRight = AIPTEK_MOUSE_RIGHT_BUTTON;
1755 aiptek->curSetting.stylusButtonUpper = AIPTEK_STYLUS_UPPER_BUTTON;
1756 aiptek->curSetting.stylusButtonLower = AIPTEK_STYLUS_LOWER_BUTTON;
1757 aiptek->curSetting.jitterDelay = jitterDelay;
1758 aiptek->curSetting.programmableDelay = programmableDelay;
1759
1760 /* Both structs should have equivalent settings
1761 */
1762 aiptek->newSetting = aiptek->curSetting;
1763
1764 /* Determine the usb devices' physical path.
1765 * Asketh not why we always pretend we're using "../input0",
1766 * but I suspect this will have to be refactored one
1767 * day if a single USB device can be a keyboard & a mouse
1768 * & a tablet, and the inputX number actually will tell
1769 * us something...
1770 */
1771 usb_make_path(usbdev, aiptek->features.usbPath,
1772 sizeof(aiptek->features.usbPath));
1773 strlcat(aiptek->features.usbPath, "/input0",
1774 sizeof(aiptek->features.usbPath));
1775
1776 /* Set up client data, pointers to open and close routines
1777 * for the input device.
1778 */
1779 inputdev->name = "Aiptek";
1780 inputdev->phys = aiptek->features.usbPath;
1781 usb_to_input_id(usbdev, &inputdev->id);
1782 inputdev->dev.parent = &intf->dev;
1783
1784 input_set_drvdata(inputdev, aiptek);
1785
1786 inputdev->open = aiptek_open;
1787 inputdev->close = aiptek_close;
1788
1789 /* Now program the capacities of the tablet, in terms of being
1790 * an input device.
1791 */
1792 for (i = 0; i < ARRAY_SIZE(eventTypes); ++i)
1793 __set_bit(eventTypes[i], inputdev->evbit);
1794
1795 for (i = 0; i < ARRAY_SIZE(absEvents); ++i)
1796 __set_bit(absEvents[i], inputdev->absbit);
1797
1798 for (i = 0; i < ARRAY_SIZE(relEvents); ++i)
1799 __set_bit(relEvents[i], inputdev->relbit);
1800
1801 __set_bit(MSC_SERIAL, inputdev->mscbit);
1802
1803 /* Set up key and button codes */
1804 for (i = 0; i < ARRAY_SIZE(buttonEvents); ++i)
1805 __set_bit(buttonEvents[i], inputdev->keybit);
1806
1807 for (i = 0; i < ARRAY_SIZE(macroKeyEvents); ++i)
1808 __set_bit(macroKeyEvents[i], inputdev->keybit);
1809
1810 /*
1811 * Program the input device coordinate capacities. We do not yet
1812 * know what maximum X, Y, and Z values are, so we're putting fake
1813 * values in. Later, we'll ask the tablet to put in the correct
1814 * values.
1815 */
1816 input_set_abs_params(inputdev, ABS_X, 0, 2999, 0, 0);
1817 input_set_abs_params(inputdev, ABS_Y, 0, 2249, 0, 0);
1818 input_set_abs_params(inputdev, ABS_PRESSURE, 0, 511, 0, 0);
1819 input_set_abs_params(inputdev, ABS_TILT_X, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
1820 input_set_abs_params(inputdev, ABS_TILT_Y, AIPTEK_TILT_MIN, AIPTEK_TILT_MAX, 0, 0);
1821 input_set_abs_params(inputdev, ABS_WHEEL, AIPTEK_WHEEL_MIN, AIPTEK_WHEEL_MAX - 1, 0, 0);
1822
1823 endpoint = &intf->altsetting[0].endpoint[0].desc;
1824
1825 /* Go set up our URB, which is called when the tablet receives
1826 * input.
1827 */
1828 usb_fill_int_urb(aiptek->urb,
1829 aiptek->usbdev,
1830 usb_rcvintpipe(aiptek->usbdev,
1831 endpoint->bEndpointAddress),
1832 aiptek->data, 8, aiptek_irq, aiptek,
1833 endpoint->bInterval);
1834
1835 aiptek->urb->transfer_dma = aiptek->data_dma;
1836 aiptek->urb->transfer_flags |= URB_NO_TRANSFER_DMA_MAP;
1837
1838 /* Program the tablet. This sets the tablet up in the mode
1839 * specified in newSetting, and also queries the tablet's
1840 * physical capacities.
1841 *
1842 * Sanity check: if a tablet doesn't like the slow programmatic
1843 * delay, we often get sizes of 0x0. Let's use that as an indicator
1844 * to try faster delays, up to 25 ms. If that logic fails, well, you'll
1845 * have to explain to us how your tablet thinks it's 0x0, and yet that's
1846 * not an error :-)
1847 */
1848
1849 for (i = 0; i < ARRAY_SIZE(speeds); ++i) {
1850 aiptek->curSetting.programmableDelay = speeds[i];
1851 (void)aiptek_program_tablet(aiptek);
1852 if (input_abs_get_max(aiptek->inputdev, ABS_X) > 0) {
1853 dev_info(&intf->dev,
1854 "Aiptek using %d ms programming speed\n",
1855 aiptek->curSetting.programmableDelay);
1856 break;
1857 }
1858 }
1859
1860 /* Murphy says that some day someone will have a tablet that fails the
1861 above test. That's you, Frederic Rodrigo */
1862 if (i == ARRAY_SIZE(speeds)) {
1863 dev_info(&intf->dev,
1864 "Aiptek tried all speeds, no sane response\n");
1865 goto fail2;
1866 }
1867
1868 /* Associate this driver's struct with the usb interface.
1869 */
1870 usb_set_intfdata(intf, aiptek);
1871
1872 /* Set up the sysfs files
1873 */
1874 err = sysfs_create_group(&intf->dev.kobj, &aiptek_attribute_group);
1875 if (err) {
1876 dev_warn(&intf->dev, "cannot create sysfs group err: %d\n",
1877 err);
1878 goto fail3;
1879 }
1880
1881 /* Register the tablet as an Input Device
1882 */
1883 err = input_register_device(aiptek->inputdev);
1884 if (err) {
1885 dev_warn(&intf->dev,
1886 "input_register_device returned err: %d\n", err);
1887 goto fail4;
1888 }
1889 return 0;
1890
1891 fail4: sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
1892 fail3: usb_free_urb(aiptek->urb);
1893 fail2: usb_free_coherent(usbdev, AIPTEK_PACKET_LENGTH, aiptek->data,
1894 aiptek->data_dma);
1895 fail1: usb_set_intfdata(intf, NULL);
1896 input_free_device(inputdev);
1897 kfree(aiptek);
1898 return err;
1899 }
1900
1901 /***********************************************************************
1902 * Deal with tablet disconnecting from the system.
1903 */
1904 static void aiptek_disconnect(struct usb_interface *intf)
1905 {
1906 struct aiptek *aiptek = usb_get_intfdata(intf);
1907
1908 /* Disassociate driver's struct with usb interface
1909 */
1910 usb_set_intfdata(intf, NULL);
1911 if (aiptek != NULL) {
1912 /* Free & unhook everything from the system.
1913 */
1914 usb_kill_urb(aiptek->urb);
1915 input_unregister_device(aiptek->inputdev);
1916 sysfs_remove_group(&intf->dev.kobj, &aiptek_attribute_group);
1917 usb_free_urb(aiptek->urb);
1918 usb_free_coherent(interface_to_usbdev(intf),
1919 AIPTEK_PACKET_LENGTH,
1920 aiptek->data, aiptek->data_dma);
1921 kfree(aiptek);
1922 }
1923 }
1924
1925 static struct usb_driver aiptek_driver = {
1926 .name = "aiptek",
1927 .probe = aiptek_probe,
1928 .disconnect = aiptek_disconnect,
1929 .id_table = aiptek_ids,
1930 };
1931
1932 module_usb_driver(aiptek_driver);
1933
1934 MODULE_AUTHOR(DRIVER_AUTHOR);
1935 MODULE_DESCRIPTION(DRIVER_DESC);
1936 MODULE_LICENSE("GPL");
1937
1938 module_param(programmableDelay, int, 0);
1939 MODULE_PARM_DESC(programmableDelay, "delay used during tablet programming");
1940 module_param(jitterDelay, int, 0);
1941 MODULE_PARM_DESC(jitterDelay, "stylus/mouse settlement delay");
Linux kernel - Deliverables
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